Sealing device holding jig

Abstract

To provide a holding jig for a sealing device that allows contact between a container and an upper end edge of a through hole even if a difference occurs in circumference due to a change in the size of an object to be held (a held object), and to provide a sealing device and a sealing method.SOLUTION: A holding jig 10 for a sealing device has a through hole 16 formed in a vertical direction, through which a held object is inserted, and includes a supporter 11 formed so as to bring the held object into contact with an upper end edge of the through hole. The supporter includes a plurality of displacement elements 14 forming at least a part of the through hole, in at least some of the displacement elements, an exposed area ER of each of the displacement element exposed on a peripheral surface part of the through hole fluctuates as the displacement element is displaced in a displacement direction determined with respect to the displacement element. When the displacement element moves to a state in which the exposed area increases, stress is applied to the displacement element so that the displacement element takes a position such that the exposed area is small.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention provides Regarding holding jigs for sealing devices . [Background technology]

[0002] There is known a sealing device that seals a container or the like as a holding object with a lid. In the sealing device, as shown in Patent Document 1, the holding object is inserted into a through-hole of a holding jig, a lid is placed so as to cover a portion of the holding object that is located on the upper surface of the holding jig, and a pressing body is pressed against the lid and the holding object from above the lid to join the lid and the holding object. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-056585 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the sealing device disclosed in the above-mentioned Patent Document 1, the size of the holding jig is installed according to the object to be held, so if there are multiple sizes of objects to be sealed, it is required to prepare individual holding jigs according to the sizes.

[0005] The present invention has been made in consideration of such problems, and aims to provide a holding jig for a sealing device, a sealing device, and a sealing method that enable contact between the container and the upper edge of the through hole even if there is a difference in circumference due to a change in the size of the object to be held. [Means for solving the problem]

[0006] The present invention is based on the following (1): (26) The summary is as follows. (1) a main body, an opening formed on the upper side of the main body, and a hole extending outward from the upper end of the main body Extending flange portiona holding jig for a sealing device that is provided for sealing a lid body on the opening of a holding object having a sealing member, and that holds the holding object, the holding jig comprising: a holding body that allows the holding object to be inserted therethrough and has a through hole formed in the vertical direction, the through hole having a peripheral surface portion and an upper edge portion, and that is formed so as to bring the holding object into contact with the upper edge portion of the through hole; the holding body having a plurality of displacers that form at least a part of the through hole; and in at least some of the displacers, as the displacers are displaced in a displacement direction determined for the displacers, the exposed area of ​​each of the displacers that is exposed on the peripheral surface portion of the through hole changes, and when the displacers move to a state where the exposed area is increased, stress is applied to the displacers so that the exposed area is reduced, and the peripheral surface portion contacts the outer circumferential surface of the main body, and the upper edge portion contacts the flange portion. (2) The holding jig for a sealing device according to (1) above, wherein the adjacent displacers slide relative to each other along the displacement direction determined for each of the displacers. (3) The holding jig for a sealing device according to (1) above, wherein the through-hole is formed by a plurality of the displacers. (4) The holding jig for a sealing device according to (1) above, wherein the plurality of displacers are arranged in a ring shape. (5) The holding body is provided with a regulating structure that regulates the displacement direction of at least some of the displacers, and the regulating structure has a guide portion that is provided corresponding to each of the displacers and guides the displacers in a predetermined direction, and the displacement direction of the displacers is a direction along the guide portion corresponding to the displacer. (6) A holding jig for a sealing device as described in (5) above, in which when one of the adjacent displacers moves along the guide portion corresponding to the one displacer, a pressing force is applied to the other displacer, and the other displacer moves along the guide portion corresponding to the other displacer based on the pressing force. (7) The holder has a restricting wall portion that restricts the displacement distance of at least one of the displacers, and the restricting wall portion comes into contact with the displacer when the displacer is displaced to a predetermined position. The holding jig for a sealing device according to (1) above. (8) The holding jig for a sealing device described in (7) above, wherein the holding body has a first groove portion in the regulating wall portion, the displacer that contacts the regulating wall portion has a second groove portion formed at a position corresponding to the first groove portion, and a regulating rod that is common to the first groove portion and the second groove portion and is embedded in the first groove portion and the second groove portion is provided. (9) The holding jig for a sealing device according to (1) above, wherein adjacent displacement elements are in contact with each other at their side surfaces. (10) The holding jig for a sealing device according to (1) above, wherein adjacent displacement elements are prevented from overlapping with each other in the vertical direction. (11) The holding jig for a sealing device according to (1) above, wherein the positions of the upper surfaces of the adjacent displacers are aligned at the upper edge of the through hole. (12) The holding jig for a sealing device described in (1) above, further comprising a base plate, wherein the displacer is arranged on an upper surface of the base plate, and the displacer slides on the upper surface of the base plate. (13) The holding jig for a sealing device according to (1) above, wherein an extension portion extending along the circumferential surface portion of the through hole is formed on the lower surface of the displacement element. (14) A holding jig for a sealing device described in (1) above, in which at least the portion of the displacer corresponding to the exposed area forms an inclined surface that slopes downward toward the inside of the through hole as it extends downward from the upper edge of the through hole. (15) The holding jig for a sealing device according to (1) above, further comprising a protective plate, the protective plate covering at least a part of the displacement element. (16) A holding jig for a sealing device described in (15) above, in which a fixing member for fixing the position of the protective plate is removably attached to the protective plate, and when the fixing member is removed, the protective plate is configured to be displaceable in a plane normal to the thickness direction of the protective plate. (17) The holding jig for a sealing device described in (1) above, wherein the holding object has a first holding object that contacts the through hole and a second holding object that is mounted on the first holding object, and when the surface direction of a plane normal to the up-down direction is defined as the planar direction, the upper surface side of the holding body is provided with a positioning structure that determines at least the position of the second holding object in the planar direction relative to the first holding object. (18) The positioning structure includes a plurality of pins erected on the upper surface side of the holder, the plurality of pins determining the position of the second held object in the planar direction, and each of the pins being configured to be displaceable in the vertical direction, in the holding jig for a sealing device described in (17) above. (19) The holding jig for a sealing device described in (1) above, wherein the holding body is provided with an elastic member that biases at least one of the displacers, and the elastic member applies stress to the displacer so that the exposed area is in a position where it is smaller when the displacer moves so that the exposed area is larger. (20) The holding jig for a sealing device according to (1) above, which has an outer periphery and is provided with a covering material having shock-absorbing properties so as to surround the outer periphery. (21) The holding jig for a sealing device according to (1) above, wherein a displacement guide structure for regulating the displacement direction of the displacer is provided on the lower surface side of the displacer. (22) A holding jig for a sealing device described in (1) above, in which a groove is formed on the upper surface of the displacer, the groove extending along the displacement direction of the displacer and formed in a portion away from the portion corresponding to the upper edge of the through hole. (23) The holding jig for a sealing device described in (1) above, wherein the entire displacer of adjacent displacers slides in the displacement direction in response to the stress while maintaining the orientation of the surfaces of the adjacent displacers facing each other. (24) The holding jig for a sealing device according to (1) above, wherein a groove is formed on at least a part of the side surface of the displacer excluding the surface forming the through hole. (25) A holding jig for a sealing device described in (1) above, further comprising a protective plate, the protective plate covering at least a portion of the displacement element, the protective plate having an auxiliary hole formed to expose the through hole, a step formed on the upper surface of the displacement element, the step being exposed inside the auxiliary hole of the protective plate, and the upper surface of the step being positioned higher than the position of the lower surface of the protective plate. (26) The holding jig for a sealing device described in (1) above, wherein the holding body is expandable and has an elastic member that biases at least one of the displacers, and when the displacer moves so that the exposed area becomes larger, stress corresponding to the expansion and contraction of the elastic member is applied so that the displacer is positioned so that the exposed area is smaller. [Effects of the Invention]

[0007] According to the present invention, the exposed area of ​​the displacer that forms the peripheral surface of the through hole changes as the displacer is displaced, and the size of the through hole can be changed. Therefore, for example, when a container having a flange on the upper edge (upper end) of a main body with an open upper end is used as the object to be held, even for multiple types of containers with different sizes (perimeter; length of the outer peripheral surface of the main body of the container) (multiple types of containers with different perimeters), the same sealing device holding jig can bring the container into contact with the upper edge of the through hole, and support the container at the upper edge of the through hole.

[0008] According to a sealing device using the sealing device holding jig of the present invention, the sealing device can firmly hold containers regardless of the size of the containers, and the flange portion can be brought into contact with the upper edge of the through-hole of the sealing device holding jig. Therefore, with the lid positioned to cover the flange portion of the container and the opening of the main body of the container, the container and the lid can be clamped between the pressing body and the sealing device holding jig. Also provided is a sealing method using such a sealing device. [Brief explanation of the drawings]

[0009] [Figure 1]FIG. 1 is a perspective view schematically showing an example of a holding jig for a sealing device according to a first embodiment. [Figure 2] FIG. 2 is a plan view schematically showing one example of a holding jig for a sealing device according to the first embodiment. [Figure 3] FIG. 3 is a cross-sectional view schematically showing the state of a vertical cross section taken along line AA in FIG. [Figure 4] Fig. 4A is a plan view schematically showing one example of a holding jig for a sealing device according to Modification 1 of Embodiment 1. Fig. 4B is a cross-sectional view schematically showing a state of a vertical cross section taken along line BB in Fig. 4A. [Figure 5] Fig. 5A is a plan view schematically showing an example of a holding jig for a sealing device according to Modification 3 of Embodiment 1. Fig. 5B is a cross-sectional view schematically showing a vertical cross section taken along line CC in Fig. 5A. [Figure 6] FIG. 6 is a cross-sectional view schematically showing an example of a holding jig for a sealing device according to a fourth modified example of the first embodiment. [Figure 7] FIG. 7 is a cross-sectional view schematically showing an example of a holding jig for a sealing device according to a fifth modified example of the first embodiment. [Figure 8] 8A and 8B are cross-sectional views schematically showing an example of a holding jig for a sealing device according to a sixth modified example of the first embodiment. [Figure 9] 9A and 9B are plan and side views schematically illustrating an example of a holding jig for a sealing device according to a seventh modified example of the first embodiment. [Figure 10] FIG. 10 is a side view schematically showing an example of a sealing device according to the second embodiment. [Figure 11] FIG. 11 is a diagram illustrating the sealing function of the sealing device according to the second embodiment. [Figure 12] Fig. 12A is a diagram schematically showing a pressing body used in a sealing device according to Modification 3 of Embodiment 2. Fig. 12B is a cross-sectional view schematically showing the state of a vertical cross section taken along line DD in Fig. 12A. [Figure 13]Fig. 13A is a diagram for explaining a sealing device according to Modification 4 of the second embodiment. Fig. 13B is a cross-sectional view schematically showing an example of a vertical cross section passing through the center of a suction cup in an example of a suction cup used in a sealing device according to Modification 4 of the second embodiment. [Figure 14] FIG. 14 is a perspective view schematically showing one example of a holding jig for a sealing device according to Modification 8 of the first embodiment. [Figure 15] Fig. 15A is a plan view schematically showing an example of a holding jig for a sealing device according to Modification 8 of the first embodiment, and Fig. 15B is a side view schematically showing an example of a holding jig according to Modification 8 of the first embodiment. [Figure 16] FIG. 16 is a side view schematically showing an example of a sealing device according to a fifth modified example of the second embodiment. [Figure 17] FIG. 17 is a diagram illustrating the sealing function of a sealing device according to a fifth modification of the second embodiment. [Figure 18] FIG. 18 is a side view schematically showing an example of a sealing device according to the seventh modification of the second embodiment. [Figure 19] 19A and 19B are diagrams schematically showing an example of a sealing device according to Modification 6 of the second embodiment. [Figure 20] Fig. 20A is a plan view showing an example of a sealing device holding jig 10 according to Modification 8 of the first embodiment, and Fig. 20B is a longitudinal sectional view schematically showing the state of the longitudinal section taken along line EE in Fig. 20A. [Figure 21] FIG. 21 is a plan view showing an example of a holding jig for a sealing device according to Modification 8 of the first embodiment. [Figure 22] FIG. 22 is a plan view for explaining one example of a holding jig for a sealing device according to Modification 7 of the first embodiment. [Figure 23] FIG. 23 is a side view showing an example of a sealing device according to a sixth modified example of the second embodiment. [Figure 24] FIG. 24 is a front view showing an example of a sealing device according to the sixth modification of the second embodiment. [Figure 25]FIG. 25 is a diagram for explaining a state of use of an example of a sealing device according to the sixth modification of the second embodiment. [Figure 26] FIG. 26 is a side view showing an example of a sealing device according to a sixth modified example of the second embodiment. [Figure 27] FIG. 27 is a front view showing an example of a sealing device according to a sixth modified example of the second embodiment. [Figure 28] 28A and 28B are diagrams showing the main parts of one embodiment of the movement control structure. [Figure 29] FIG. 29 is a front view showing an example of a sealing device according to a ninth modification of the second embodiment. [Figure 30] Fig. 30A is a plan view showing an example of a sealing device holding jig 10 according to Modification 8 of the first embodiment, and Fig. 30B is a longitudinal sectional view schematically showing the state of the longitudinal section taken along line EE in Fig. 30A. [Figure 31] FIG. 31 is a plan view showing an example of a sealing device holding jig 10 according to Modification 8 of the first embodiment. [Figure 32] Fig. 32A is a plan view showing one example of a sealing device holding jig 10 according to Modification 8 of the first embodiment, and Fig. 32B is a longitudinal cross-sectional view schematically showing the state of the longitudinal cross-section taken along line GG in Fig. 32A. [Figure 33] FIG. 33 is a side view showing an example of a sealing device according to a tenth modification of the second embodiment. [Figure 34] FIG. 34 is a front view showing an example of a sealing device according to a tenth modification of the second embodiment. [Figure 35] FIG. 35 is a diagram for explaining a state in which the holding jig of an example of a sealing device according to the tenth modification of the second embodiment is moved in the front-rear direction. [Figure 36] FIG. 36 is a plan view schematically showing one example of a holding jig for a sealing device according to the first embodiment. [Figure 37] FIG. 37 is a plan view schematically showing one example of a holding jig for a sealing device according to the first embodiment. [Figure 38]FIG. 38 is a plan view schematically showing one example of a holding jig for a sealing device according to the first embodiment. [Figure 39] FIG. 39 is a plan view schematically showing one example of a holding jig for a sealing device according to the first embodiment. [Figure 40] Fig. 40A is a plan view schematically showing an example of a holding jig for a sealing device according to Modification 8 of the first embodiment. Fig. 40B is a plan view schematically showing a vertical cross section taken along line HH in Fig. 40A. Fig. 40C is a cross-sectional view schematically showing an example of a state during use of an example of a holding jig according to Modification 8 of the first embodiment. [Figure 41] Fig. 41A is a plan view schematically showing an example of a holding jig for a sealing device according to Modification 8 of the first embodiment. Fig. 41B is a cross-sectional view schematically showing a state of a vertical cross section taken along line II in Fig. 41A. Fig. 41C is a cross-sectional view schematically showing a state of a vertical cross section taken along line JJ in Fig. 41A. [Figure 42] 42A and 42B are cross-sectional views schematically showing an example of a holding jig for a sealing device according to Modification 8 of the first embodiment. [Figure 43] Fig. 43A is a plan view schematically showing an example of a holding jig for a sealing device according to Modification 9 of the first embodiment, and Fig. 43B is a view schematically showing an example of a holding jig for a sealing device according to Modification 9 of the first embodiment. [Figure 44] FIG. 44 is a plan view schematically showing an example of a holding jig for a sealing device according to a tenth modification of the first embodiment. [Figure 45] Fig. 45A is a plan view schematically showing one example of a holding jig for a sealing device according to Modification 11 of Embodiment 1. Fig. 45B is a cross-sectional view schematically showing the state of a vertical cross section taken along line KK in Fig. 45A. [Figure 46] Fig. 46A is a plan view schematically showing an example of a holding jig for a sealing device according to Modification 12 of the first embodiment. Fig. 46B is a cross-sectional view schematically showing a state of a vertical cross section taken along line LL in Fig. 46A. Fig. 46C is a plan cross-sectional view schematically showing a state of a vertical cross section taken along line MM in Fig. 46A. [Figure 47]Fig. 47A is a plan view schematically showing an example of a holding jig for a sealing device according to a thirteenth modification of the first embodiment, and Fig. 47B is a side view schematically showing an example of a holding jig according to the thirteenth modification of the first embodiment. [Figure 48] Fig. 48A is a plan view schematically showing an example of a holding jig for a sealing device according to Modification 14 of the first embodiment, and Fig. 48B is a view schematically showing an example of a holding jig according to Modification 14 of the first embodiment. [Figure 49] Fig. 49A is a plan view schematically showing one example of a holding jig for a sealing device according to Modification 15 of Embodiment 1. Fig. 49B is a cross-sectional view schematically showing the state of a vertical cross section taken along line NN in Fig. 49A. DETAILED DESCRIPTION OF THE INVENTION

[0010] An example of the present invention will be described below with reference to the drawings. The description will be made in the order of 1. First embodiment (holding jig for sealing device), and 2. Second embodiment (sealing device). In this specification and the drawings, components having substantially the same functional configuration will be assigned the same reference numerals to avoid redundant description. In the following, the holding jig for sealing device will be simply referred to as the "holding jig."

[0011] The following description is of a preferred specific example of the present invention, and the content of the present invention is not limited to the described embodiments. Furthermore, in the following description, directions such as front-to-back, left-to-right, and up-down are indicated for the sake of convenience, but the content of the present invention is not limited to these directions. In the examples of FIGS. 1 and 2, the Z-axis direction is the up-down direction (upper side is the +Z direction, lower side is the -Z direction), the X-axis direction is the front-to-back direction (front side is the +X direction, rear side is the -X direction), and the Y-axis direction is the left-to-right direction (right side is the +Y direction, left side is the -Y direction), and the description will be based on this. The same applies to FIGS. 3 to 49.

[0012] The relative size and thickness ratios of each layer shown in each drawing, such as Figure 1, are shown for convenience and do not limit the actual size ratios. The same applies to each drawing, such as Figures 2 to 49, regarding the definitions of these directions and the size ratios.

[0013] [1 First embodiment] [1-1 Configuration of holding jig] The holding jig 10 according to the first embodiment has a holder 11, as shown in FIGS. 1, 2, and 3. The holding jig 10 is rectangular in plan view; however, this is merely an example and other shapes are not prohibited. The outer peripheral shape of the holding jig 10 may be any of a rectangular shape, a circular shape, a tongue-like shape, an elliptical shape, a polygonal shape, and the like. For example, in the example shown in FIG. 39, the outer peripheral shape of the holding jig 10 is tongue-like in plan view. For convenience of explanation, FIGS. 1 and 2 show a gap between a receiving member 13 and a displacer 14 (described later). However, this may occur when a gap is generated due to displacement of the displacer 14, or when the receiving member 13 and the displacer 14 are in contact with each other (when there is no gap). This also applies to FIGS. 4 and 5.

[0014] (Items to be held) The holding jig 10 can be used to hold an object to be held. Therefore, the concept of the holding jig 10 includes structures that can be used as so-called container holders or container supports. The object to be held is an object held by the holding jig 10, and examples thereof include a container, a stack of a container and a lid, and an integrated object of a container and a lid. The object to be held includes an object to be held by the upper edge of the through hole of the holding jig and an object to be held by the peripheral surface of the through hole of the holding jig.

[0015] (base plate) In the example of FIG. 1 , the holding jig 10 includes a holding body 11 on a base plate 12. In this example, the holding body 11 has a plurality of displacers 14 (described later) and a receiving member 13 arranged on the upper surface (upper surface) of the base plate 12. However, this is not limited to the case where the holding jig 10 includes the base plate 12. The base plate 12 may be omitted if the holding body 11 cannot be disassembled, i.e., if the combination of a plurality of displacers 14 (described later) cannot be individually disassembled and the displacers 14 cannot be separated from the holding body 11. The material of the base plate 12 is not particularly limited, and may be metal, plastic, wood, glass, ceramic, or the like. However, from the viewpoint of excellent strength, the base plate 12 is preferably made of metal. An auxiliary hole 17 is formed in the base plate 12 at a position corresponding to the through hole 16 (described later). In the example of FIG. 1 , the auxiliary hole 17 is formed in a shape that is approximately inscribed within the shape of a peripheral surface 16A of the through hole 16 when the through hole 16 is in an expanded state and is viewed from above the holding jig 10. As the size of through hole 16 is changed so as to become smaller, edge 17A of auxiliary hole 17 is positioned outside through hole 16 in a plan view of holding jig 10.

[0016] (holding body) The holder 11 has a through hole 16 and a plurality of displacers 14 that form at least a portion of the through hole 16. In the example of FIG. 1, the through hole 16 is formed by the plurality of displacers 14. In addition, in the example of FIG. 1, the holder 11 has a receiving member 13 outside the displacers 14 when the direction toward the through hole 16 is considered to be the inward direction. More specifically, in the example of FIG. 1, the holder 11 has an annular structure 15 made up of the plurality of displacers 14, and further has a receiving member 13 outside the annular structure 15. Note that FIG. 1 shows an example of the holding jig 10, and the displacers 14 may be arranged in a non-annular manner. Also, for example, this is an example of the holding jig 10, and the through hole 16 may be formed by a combination of the displacers 14 and a non-displaceable member that does not displace. In this example, the displacers 14 are arranged in a non-annular manner.

[0017] (Through hole) The through-hole 16 of the holder 11 is formed so that its size can be changed in response to the displacement of the displacer 14, as described below. The through-hole 16 has a diameter sufficient to allow the object to be held M to pass through. The through-hole 16 has a peripheral surface 16A and an upper edge 16B. When the object to be held M is a container 200 having a main body 210 and a bottom 220 with an open upper side, forming an internal space 230 surrounded by the main body 210 and the bottom 220, as will be described later in the explanation of the sealing device with reference to FIG. 11, and having a flange 240 extending outward from the upper end (upper edge 250) of the main body 210, the peripheral surface 16A faces the outer peripheral surface 210A of the main body 210 (the outer peripheral surface of the container 200), and the upper edge 16B faces the flange 240. The flange 240 may be flat or curled. In the following explanation, when a container is used, the explanation will be continued assuming that the object to be held is the container 200 as described above, the shape of the main body 210 is tapered from the upper end to the lower end, and the main body of the container 200 is open at the top. Note that the upper edge 16B indicates the portion that forms the upper edge of the through-hole 16 when it is assumed that the container 200 is inserted into the holding jig 10 in a generally vertical direction. When the container 200 is inserted into the holding jig 10, it is preferable that the container 200 is inserted so as to pass through the through-hole 16 from the upper edge 18B side.

[0018] The size of the through hole 16 is changed within a predetermined range depending on the displacement of the displacer 14. The size of the through hole 16 in an expanded state is determined in advance. The expanded state is a state in which the size of the through hole 16 is increased as determined depending on conditions such as the size of the object to be held M and the arrangement of the displacer 14. For example, in the example of FIG. 1, this is the size of the through hole 16 when the displacer 14 is displaced to a position in contact with the restriction wall portion 21. The size of the through hole 16 in a contracted state is also determined in advance. The contracted state is a state in which the size of the through hole 16 is reduced as determined depending on conditions such as the size of the object to be held M and the arrangement of the displacer 14. For example, in the example of FIG. 4 referred to in Modification 1 described below, this is the size of the through hole 16 when the displacer 14 is displaced until the elastic member 22 reaches its natural length. Furthermore, for example, when the object to be held M is a container 200 having a shape tapering downward, the size of the through hole 16 corresponding to the reduced state of the through hole 16 may be set to be slightly larger than the size of the lower end of the container 200 with respect to the relationship between the object to be held M and the reduced state. The size of the through hole 16 corresponding to the reduced state of the through hole 16 may be set to be slightly larger than the size of the upper end (excluding the flange portion 240) of the container 200 with respect to the relationship between the size of the object to be held M and the expanded state. When the size of the through hole 16 is changed, the size of the through hole 16 may be changed so that the shapes before and after the change are similar to each other, or may be changed so that the shapes are dissimilar. When the size of the through hole 16 is reduced, the size of the through hole 16 may be set to be approximately zero.

[0019] (Identifying the size of the through-hole) The size of the through holes 16 is determined as follows: when the center CT of the through holes 16 (shown by a dotted line in FIGS. 1 and 3 and by a dot in FIG. 2) is aligned with the position of the displacer 14, one through hole 16 is positioned in front, and the other through holes 16 are positioned in the rear, if the other through holes 16 are exposed, the one through hole 16 is smaller than the other through holes 16; if the one through hole and the other through holes 16 are aligned, the one through hole 16 and the other through holes 16 are the same size; and if the other through hole 16 is not exposed and is not the same as the one through hole 16, the other through hole 16 is larger than the one through hole 16. The size of the through hole 16 and the auxiliary holes 17, 18 is determined by the diameter of the largest inscribed circle of the through hole 16 and the diameters of the auxiliary holes 17, 18.

[0020] (displacer) In the examples of the holding jig 10 shown in FIGS. 1 and 2, the displacers 14 are arranged in a ring shape. Here, "arranged in a ring shape" refers to a state in which, when a predetermined position is set as a reference position (in the example of FIG. 2, the center CT of the through-hole 16), the displacers 14 are arranged so as to surround the reference position. The case of annular arrangement also includes a case in which adjacent displacers 14 overlap when the line of sight is in a direction away from the reference position (a direction extending outward from the reference position along a plane normal to the thickness direction of the holding jig 10). The displacer 14 refers to an object (a displaceable element) that moves, rotates, or moves in position when subjected to external pressure, electricity, magnetism, or the like. Examples of the displacer 14 include a slider and a rotor. A slider is a tangible object that moves in position. A rotor is a tangible object that moves in rotation. The displacer 14 may be positioned so that at least a portion of it can be seen from the through-hole 16, and it is not prohibited for some (some) of the multiple displacers 14 to be not exposed in the through-hole 16 when the size of the through-hole 16 is a predetermined size.

[0021] (displacer layout) Regarding the layout of the displacers 14, in the examples of FIGS. 1 and 2, when the line of sight is set to a direction away from the reference position, adjacent displacers 14 overlap and are in contact with each other. The displacers 14 arranged in a ring form an annular structure 15 as a whole. The annular structure 15 has a through-hole (a portion that penetrates in the Z-axis direction) formed inside, which serves as a through-hole 16. Therefore, the plurality of displacers 14 form the through-hole 16. However, this is not limited to the case where the through-hole 16 is formed by a through-hole formed by arranging the displacers 14 in a ring. For example, as shown in FIG. 37, the through-hole 16 may be formed by a displacer 14 and a wall portion 53. FIG. 37 is a plan view showing an example of the holding jig 10 according to the first embodiment. In FIG. 37, as indicated by the dashed line, the size of the exposed region ER changes as the displacer 14 slides in the direction of the arrow SL, and the size of the through-hole 16 changes in accordance with the change in the size of the exposed region ER.

[0022] 1 and 2, the plurality of displacers 14 are arranged in a ring shape so that the through-hole 16 has a generally regular polygonal shape (a regular dodecagon in FIG. 2) in a plan view of the holder 11 (a plan view of the holding jig 10). However, the arrangement (layout) of the plurality of displacers 14 is not limited to this example. For example, as shown in FIG. 36, the plurality of displacers 14 may be arranged so that the through-hole 16 has a shape close to a rectangle, or may be arranged so that the through-hole 16 has a shape other than a regular polygon. In the example of FIG. 36, four displacers 14 are arranged, and the through-hole 16 is formed into a rectangular shape. In this example, the displacers 14 are formed in a generally right-angled triangular shape in a plan view of the holding jig 10, and the length LB of one side of the end face facing the through-hole 16 is longer than the length LA of the side extending generally perpendicular to this side. As the displacer 14 slides in the direction of arrow SL, the size of the exposed region ER changes as shown by the dashed line, and the size of the through-hole 16 changes in accordance with the change in the size of the exposed region ER. Furthermore, if the side surface of the displacer 14 is curved as will be described later, multiple displacers 14 may be arranged so that the multiple displacers 14 form a circular through-hole 16.

[0023] (exposed area of ​​displacer) Of the surface of the displacer 14 (in the example of FIG. 1, the first side surface 14A1 of the side surface 14A), the region forming the peripheral surface portion 16A of the through hole 16 is an exposed region ER exposed toward the through hole 16. The size of the exposed region ER is determined according to the size of the through hole 16. In at least some of the displacers 14, the exposed region ER of the displacer 14 exposed at the peripheral surface portion 16A of the through hole 16 changes as the displacer 14 is displaced in the displacement direction T. In the example of FIG. 1, the smaller the size of the through hole 16, the smaller the exposed region ER of the displacer 14 forming the through hole 16. Furthermore, as the exposed region ER of the displacer 14 decreases, the region of the surface of the displacer 14 that is in contact with the adjacent displacer 14 and is covered by the adjacent displacer 14 (covered region CR) increases. As the size of the through hole 16 increases, the exposed region ER of the displacer 14 increases. Furthermore, as the exposed area ER of the displacer 14 increases, the area of ​​the surface of the displacer 14 that is covered by adjacent displacers 14 (covered area CR) decreases. Thus, in the holding jig 10, as each displacer 14 is displaced in the displacement direction T, the exposed area ER of each displacer 14 exposed on the peripheral surface portion 16A of the through hole 16 changes. Note that Fig. 1 is an example, and does not prohibit the size of the exposed area ER of some displacers 14 from changing as long as the size of the through hole 16 can be changed.

[0024] (Shape of the displacer) In the examples of Figures 1 and 2, each of the displacers 14 has a triangular shape in a plan view and is formed like a triangular plate having a predetermined thickness. Furthermore, the multiple displacers 14 are generally uniformly formed. However, this does not limit the shape of the displacers 14 to the examples of Figures 1 and 2. The examples of Figures 1 and 2 do not prohibit at least some of the multiple displacers 14 from having a different shape from the other displacers 14. For example, as shown in Figure 38, the shapes of the multiple displacers 14 forming the through-hole 16 may be triangular, trapezoidal, or curved. In Figure 38, the displacer 14TRP is trapezoidal in a plan view of the holder 11, and the other displacers 14 except for the displacer 14TRP are triangular in a plan view of the holder 11.

[0025] (size of displacer) 1, 2, etc., the sizes of the plurality of displacers 14 are generally uniform. However, this does not prohibit the case where at least some of the plurality of displacers 14 have different sizes.

[0026] (Displacer material) The material of the displacer 14 is not particularly limited, and may be metal, plastic, wood, glass, ceramic, or the like. However, from the viewpoints of excellent rubbing properties and ease of molding, the material of the displacer 14 is preferably plastic. If the displacer 14 is made of plastic, the displacer 14 preferably has cushioning properties. From this viewpoint, the displacer 14 is preferably made of a porous polymer material. Examples of porous polymer materials include foamed polymer materials. Note that the plastic may be elastic or may have little elasticity. If the displacer 14 is easily elastically deformable, the size of the through-hole 16 can be smoothly changed even if the side surface of the displacer 14 is curved or even if multiple displacers 14 are arranged so that the through-hole 16 is circular. Furthermore, from the viewpoints of excellent strength of the displacer 14 and low wear due to friction during rubbing, the material of the displacer 14 is preferably metal (including alloy). When the material of the displacer 14 is a metal, specific examples of the material of the displacer 14 include iron, copper, aluminum, stainless steel, etc. From the viewpoint of making rust less likely to occur, the material of the displacer 14 is preferably an aluminum alloy or stainless steel.

[0027] (Displacement direction of the displacer) Each of the displacers 14 shown in the example of FIG. 1 slides on the upper surface (upper surface of the plate) of the base plate 12. Therefore, the displacers 14 are displaced in the plane direction of the base plate 12 (the XY plane direction). At this time, in a plan view of the holder 11, a displacement direction T of each of the displacers 14 is predetermined. The displacement direction T of each of the displacers 14 is determined according to the shape and arrangement of the displacer 14. In the example of FIGS. 1 and 2, the displacement direction T of each of the displacers 14 is determined according to the orientation of the base 140 of the displacer 14. In this example, the direction along the extension direction of the base 140 of the triangle forming the displacer 14 is defined as the displacement direction T, and the displacer 14 is displaced linearly along the displacement direction T. By defining such a direction as the displacement direction T, adjacent displacers 14 can be interlocked as described below. In the example of FIG. 1, the displacers 14 are displaced linearly along the displacement direction T, but the displacement direction T is not limited to being linear. For example, the displacer 14 may be configured to displace in an arc-like shape. When the displacer 14 has a triangular shape in a plan view, the base 140 is set to the shortest side of the three sides in the examples of Figures 1 and 2, but this is set for convenience of explanation and is not limited to this. When displacing in an arc-like shape, the displacer 14 is preferably made of an elastically deformable material such as rubber.

[0028] (Interlocking of adjacent displacers) Adjacent displacers 14 are interlocked as described above. Interlocking means that when one displacer 14 is displaced, the adjacent displacer 14 is also displaced. The interlocking structure is not particularly limited, but in the example of FIG. 1, it is realized by the arrangement structure of adjacent displacers 14. In the example of FIG. 1, adjacent displacers 14 are in contact with each other at their side surfaces 14A (first side surfaces 14A1). One of the adjacent displacers 14 applies a pressing force to the other displacer 14. The other displacer 14 is displaced by the action of this pressing force.

[0029] In the example shown in FIG. 1 , when one of adjacent displacers 14 moves along a guide portion 20 (described later) corresponding to that displacer 14, it applies a pressing force to the other displacer 14, and the other displacer 14 moves along the guide portion 20 corresponding to that other displacer 14 based on the pressing force. In the example of FIG. 1 , when one displacer 14 moves along the displacement direction T, a pressing force can be applied to the other displacer 14 so as to press it in a direction oblique to the extension direction of the guide portion 20 of the other displacer 14. Therefore, the other displacer 14 is displaced along the guide portion 20 by the pressing force received from the one displacer 14. Note that displacement along the guide portion 20 is not limited to cases where the guide portion 20 and the displacer 14 move while in contact with each other, and may also include cases where the guide portion 20 and the displacer 14 move in partial contact with each other, as long as the function of the guide portion 20 is not lost, and may also include cases where the guide portion 20 and the displacer 14 temporarily separate from each other.

[0030] (Sliding of adjacent displacers) Adjacent displacers 14 slide against each other. At this time, they slide against each other along a displacement direction T determined for each displacer 14. Adjacent displacers 14 are in contact with each other at their side surfaces 14A (first side surfaces 14A1 in FIG. 1), and the adjacent displacers 14 are displaced along the displacement direction T determined for each such displacer 14 so that the side surfaces 14A rub against each other. The concept of two objects sliding against each other includes cases where two objects slide against each other smoothly and cases where two objects move with friction. When adjacent displacers 14 slide against each other, it is preferable that a frictional force acts between the adjacent displacers 14. In this case, it is preferable that the frictional force in a direction different from the sliding direction of the adjacent displacers 14 is greater than the frictional force in the sliding direction of the adjacent displacers 14. Furthermore, when adjacent displacers 14 slide, this includes not only the case where the adjacent displacers 14 slide while always in contact with each other, but also the case where there is a moment when the adjacent displacers 14 separate from each other.

[0031] 3, adjacent displacers 14 are all disposed on the base plate 12, preventing adjacent displacers 14 from overlapping with each other in the vertical direction. This makes it possible to align the thicknesses of adjacent displacers 14, thereby preventing the formation of irregularities along the circumferential direction of the through hole 16 at the upper edge 16B of the through hole 16, as shown in FIG. 1. In the example of FIG. 1, the positions of the upper surfaces 14B of adjacent displacers 14 are aligned at the upper edge 16B of the through hole 16. This configuration allows, when the holding jig 10 is used in a sealing device described later, the contact positions in the vertical direction between the upper edge 16B of the through hole 16 in the holding jig 10 and the flange portion 240 of the container 200 to be roughly uniform, thereby enabling the container 200 to be pressed against a pressing body 310 described later at roughly the same time.

[0032] (Receiving material) In the example of FIG. 1 , the holder 11 has a receiving member 13 provided on the outside of the annular structure 15. The receiving member 13 can function as a structure having a regulating structure 19, which will be described later. The receiving member 13 is formed in an annular shape, and an outer peripheral surface 13A of the receiving member 13 is formed in a shape corresponding to the outer peripheral surface 11A of the holder 11. An inner peripheral surface 13B of the receiving member 13 is formed in a shape corresponding to the outer peripheral surface 15A of the annular structure 15. The receiving member 13 is fixed on the base plate 12, and the annular structure 15 is formed to face the inner peripheral surface 13B of the receiving member 13, thereby preventing the annular structure 15 from shifting in position relative to the base plate 12, and therefore preventing the displacer 14 from shifting in position relative to the base plate 12.

[0033] (Material of receiving material) The material of the receiving member 13 is not particularly limited, but it is preferably the same material as the displacer 14 from the viewpoint of ease of manufacture.

[0034] In the examples of Figures 1 and 2, the receiving material 13 is formed from a single member, but the receiving material 13 may also be formed from a combined structure made up of multiple divided parts (not shown).

[0035] (Regulatory Structure) The holder 11 includes a regulating structure 19. The regulating structure 19 is a structure that regulates the displacement direction T (displacement direction regulating structure). The regulating structure 19 regulates the displacement direction T of at least some of the displacers 14. In the example shown in FIGS. 1 and 2, the regulating structure 19 has a guide portion 20. In the example shown in FIGS. 1 and 2, the guide portion 20 is formed on the receiving member 13. The guide portion 20 shown in this example regulates the displacement direction T so that the displacer 14 is displaced linearly from the first position to the second position.

[0036] (First position and second position) The first position is the position of the displacer 14 determined when the size of the through-hole 16 is in a predetermined expanded state, as shown in FIG. 2 (for example, the position of the displacer 14 indicated by the solid line in FIG. 2). The second position is the position of the displacer 14 determined when the size of the through-hole 16 is in a predetermined contracted state (for example, the position of the displacer 14 indicated by the dashed line in FIG. 2). Note that the case where the regulating structure 19 has the guide portion 20 is one example of the regulating structure 19, and the regulating structure 19 is not limited to this. In the description of the first embodiment, for convenience of explanation, the description will be continued taking as an example a case where the regulating structure 19 has a structure having the guide portion 20.

[0037] (Guide part) The guide portion 20 may be provided for at least some of the displacers 14, and in the example of FIG. 1, a guide portion 20 is provided for each of the displacers 14. The guide portion 20 regulates the movement of the displacer 14 so as to limit the displacement direction of the displacer 14. In the examples of FIGS. 1 and 2, a guide portion 20 is provided corresponding to each of the displacers 14 and guides the displacer 14 in a predetermined direction. The guide portion 20 is formed by a guide wall portion 23 of the receiving member 13 that faces one side of the displacer 14 (the second side surface 14A2 formed at the position of the bottom edge 140). The guide portion 20 guides the movement of the displacer 14 so that the displacement direction T of the displacer 14 is along the wall surface of the guide wall portion 23 of the guide portion 20 corresponding to that displacer 14. In the example of FIGS. 1 and 2, the wall surface direction of the guide wall portion 23 that forms the guide portion 20 is aligned with the extending direction of the base of the triangle that forms the shape of the displacer 14 (the surface direction of the second side surface 14A2). In this example, the orientations of the bottom sides of adjacent displacers 14 (plane directions of the second side surfaces 14A2) are different, and therefore the wall surface directions of the guide wall portions 23 corresponding to the respective displacers 14 are also different. The length of the guide portion 20 is preferably approximately the same as or longer than the displacement range of the displacer 14 (the range of movement of the displacer 14 when the position of the displacer 14 moves from the first position to the second position). Note that the example in FIG. 1 is one example of the guide portion 20, and the configuration of the guide portion 20 is not limited as long as it can regulate the displacement direction T of the displacer 14.

[0038] (Regulating wall section) As shown in the examples of FIGS. 1 and 2 , the holder 11 preferably has at least one restricting wall portion 21 that restricts the displacement distance of the displacer 14. The restricting wall portion 21 has a wall surface 21A that comes into contact with the displacer 14 when the displacer 14 is displaced to a predetermined position. For example, when the displacer 14 moves in the displacement direction T to the first position, the first side surface 14A1 of the displacer 14 comes into contact with the wall surface 21A of the restricting wall portion 21, and the displacer 14 is restricted from moving further from the first position in the displacement direction T in the direction opposite to the direction toward the second position. Therefore, the restricting wall portion 21 restricts the displacement distance of the displacer 14.

[0039] In the example shown in FIGS. 1 and 2 , the restricting wall 21 is formed on the receiving member 13, and the edge of the restricting wall 21 is shared with the edge of the guide portion 20. The angle formed by the wall surface 21A of the restricting wall 21 and the wall surface of the guide wall 23 of the guide portion 20 is an acute angle. In this example, the receiving member 13 has a generally V-shaped wall 24 that forms the restricting wall 21 and the guide wall 23 for each displacer 14 in a plan view of the holding member. The V-shaped wall 24 is formed so as to be arranged in a ring shape corresponding to the arrangement of the displacers 14. In the example shown in FIGS. 1 and 2 , a curved wall 25 that is curved in a C-shape in a plan view of the receiving member 13 is formed at the position of the edge of the restricting wall 21 and the edge of the guide portion 20. The curved wall 25 prevents the corner (vertex 141) of the displacer 14 from contacting the position of the edge of the restricting wall 21 and the edge of the guide portion 20.

[0040] [1-2 Actions and Effects] According to the first embodiment, the exposed area ER of the displacer 14 that forms the peripheral surface portion 16A of the through-hole 16 changes as the displacer 14 is displaced, thereby changing the size of the through-hole 16. Even for a plurality of types of containers 200 of different sizes as the holding object M, the same holding jig 10 can bring the containers 200 into contact with the upper edge portion 16B of the through-hole 16, and the containers 200 can be supported by the upper edge portion 16B of the through-hole 16.

[0041] Furthermore, according to the holding jig 10 of the first embodiment, the size of the through hole 16 can be changed in accordance with the displacement of the displacer 14, thereby making it possible to accommodate cases where the size of the main body 210 of the container 200 itself changes.

[0042] For example, in the case where the object to be held M is a container 200, the container 200 has a main body 210 with an open top and a bottom 220, forming a space 230 inside, and has a flange 240 extending outward on the upper end side of the main body 210, when the holding jig 10 holds the object to be held M at the through-hole 16, the peripheral surface 16A faces the outer peripheral surface 210A of the main body 210 (the outer peripheral surface of the container 200), and the upper edge 16B faces the flange 240. In the case where the outer peripheral surface 210A of the main body 210 has a tapered shape tapering downward, the size of the cross section of the main body 210 is smaller in the lower part (portion close to the bottom 220) than in the vicinity of the flange 240. When the container 200 is placed inside the through-hole 16 of the holding jig 10 and the holding jig 10 is moved upward, only the holding jig 10 is pulled upward while the size of the outer peripheral surface 210A of the main body 210 is smaller than the size of the through-hole 16 of the holding jig 10 when the through-hole 16 is in a contracted state. Eventually, when the size of the outer peripheral surface 210A of the main body 210 matches the size of the through-hole 16 of the holding jig 10 when the through-hole 16 is in a contracted state, the through-hole 16 of the holding jig 10 and the outer peripheral surface 210A of the main body 210 come into contact. When the weight of the container 200 is equal to or greater than a predetermined weight, the holding jig 10 slides upward relative to the main body 210 of the container 200 while in contact with the main body 210 of the container 200. At this time, the container 200 may or may not move upward together with the holding jig 10. The holding jig rubs upward while in contact with the main body 210 of the container 200, and the size of the through hole 16 is changed (enlarged) by the displacement of the displacer 14 according to the size of the main body 210 of the container 200. Then, when the upper edge 16B of the through hole 16 of the holding jig 10 comes into contact with the flange portion 240 of the container 200 while the holding jig 10 is moving upward, the holding jig 10 holds the container 200 and moves upward together with the container 200. In this way, the holding jig 10 can change the size of the through hole 16, so that the upper edge 16B of the holding jig 10 can be kept in contact with the flange portion 240 even when the size of the main body 210 of the container 200 itself changes.

[0043] Next, modifications of the first embodiment will be described. The modifications described below may be combined with each other as long as they are not contradictory. For example, modification 1 and modification 3 may be combined.

[0044] [1-3 Variations] (Variation 1) In the holding jig 10 according to the first embodiment, as shown in Figs. 4A and 4B, the holder 11 may include an elastic member 22 that biases at least one displacer 14. This embodiment is referred to as Modification 1 of the first embodiment. Fig. 4A is a plan view showing one example of the holding jig 10 according to Modification 1 of the first embodiment. Fig. 4B is a cross-sectional view showing the state of the vertical cross section taken along line BB in Fig. 4A.

[0045] (elastic member) In the holding member shown in Fig. 4A, for each of a plurality of displacers 14 (three displacers 14 in Fig. 4A) selected from the annularly arranged displacers 14, a hole 26 is formed drilled from a predetermined position in the inner region of the wall surface 21A of the regulating wall portion 21 corresponding to the displacer 14 toward the depth thereof. An elastic member 22 is disposed in the hole 26.

[0046] 4A, three elastic members 22 are arranged on the holding member, but this is just an example, and it is sufficient that at least one elastic member 22 is arranged. In addition, the arrangement positions of the elastic members 22 are not particularly limited.

[0047] (Elastic material) As shown in Fig. 4B, a coil spring is used as the elastic member 22. However, this is just one example of the elastic member 22, and other materials such as rubber and urethane may be used as the elastic member 22. The elastic member 22 may also be a combination of these. It is also not prohibited to use a combination of magnets instead of the elastic member 22.

[0048] (Action and effect) In the first modification of the first embodiment, when the displacer 14 is disposed at the first position, the elastic member 22 biases the displacer 14 in the direction of arrow P so as to displace the displacer 14 toward the second position (pushing the displacer 14 in a direction away from the restriction wall portion 21). Therefore, when the exposed area ER is increased (the size of the through-hole 16 is increased), the elastic member 22 biases the displacer 14 so as to decrease the exposed area ER (the size of the through-hole 16 is decreased). When the displacer 14 is disposed at the second position, the length of the elastic member 22 is at its natural length, and the pressing force of the elastic member 22 on the displacer 14 is released. Therefore, when the exposed area ER is decreased, the displacer 14 is released from the biasing force of the elastic member 22. That is, the displacer 14 is released from the force pushing the displacer 14 in a direction away from the restriction wall portion 21. In this way, the elastic member 22 biases the displacer 14 so that the exposed area ER of each displacer 14 exposed on the peripheral surface portion 16A of the through-hole 16 decreases when the exposed area ER of each displacer 14 increases. The biasing force of the elastic member 22 allows the size of the through-hole 16 to follow the size of the container 200.

[0049] According to the holding jig 10 of the first embodiment, variant example 1, when the container 200 is placed in the through hole 16, even if the outer surface 210A of the main body 210 of the container 200 displaces the displacer 14 from the second position and the container 200 pushes the through hole 16 open, the position of the displacer 14 can be returned to the second position by removing the container 200 from the through hole 16 due to the restoring force of the elastic member 22.

[0050] (Variation 2) In the holding jig 10 according to the first embodiment, the holding body 11 may include a control mechanism for controlling the movement of at least one displacer 14. The control mechanism may be a mechanical structure or an electrical structure. An example of the mechanical structure is a control structure for the movement of the displacer 14 using gears (not shown). An example of the electrical structure is a control structure for the movement of the displacer 14 by electrically controlling a magnetic force (not shown).

[0051] (Variation 3) In the holding jig 10 according to the first embodiment, as shown in FIGS. 5A and 5B , the holder 11 may have a first groove 27 in the restriction wall 21, and a second groove 28 may be formed in the displacer 14 that contacts the restriction wall 21 at a position corresponding to the first groove 27. In this case, as shown in FIGS. 5A and 5B , a restriction rod 29 is provided that is common to the first groove 27 and the second groove 28 and embedded in the first groove 27 and the second groove 28. This embodiment is referred to as Modification 3 of the first embodiment. FIG. 5A is a plan view showing an example of the holding jig 10 according to Modification 3 of the first embodiment. FIG. 5B is a cross-sectional view showing the state of the vertical cross section taken along line CC in FIG. 5A .

[0052] (First groove and second groove) In the retaining member shown in Figure 5A, for each of a plurality of displacers 14 selected from the displacers 14 arranged in a ring (in Figure 5A, six displacers 14 arranged alternately along the arrangement direction of the displacers 14), the first groove portion 27 extends from a predetermined position at the upper end of the wall surface 21A of the regulating wall portion 21 corresponding to each displacer 14 along the upper surface 13C of the receiving material 13 in a direction away from the wall surface 21A toward the inner region of the upper surface 13C.

[0053] The second grooves 28 extend from a predetermined position at the upper end of the side surface 14A (first side surface 14A1) of each displacer 14 toward an inner region of the top surface 14B of the displacer 14. The position of the first groove 27 on the wall surface 21A and the position of the second groove 28 on the side surface 14A are opposite each other, and the positions of the groove bottoms 28A of the second grooves 28 and the groove bottoms 27A of the first grooves 27 are generally aligned.

[0054] 5A, the extension direction of the first groove portion 27 coincides with the extension direction of the second groove portion 28. Furthermore, the extension directions of the first groove portion 27 and the second groove portion 28 both coincide with the displacement direction T of the displacer 14 in which the second groove portion 28 is formed (in the example of FIG. 4, the extension direction of the second groove portion 28 coincides with the extension direction of the bottom side 140 of the displacer 14).

[0055] (Regulatory pole) A restricting rod 29 is embedded in the first groove portion 27 and the second groove portion 28. The restricting rod 29 is common to the first groove portion 27 and the second groove portion 28. The material of the restricting rod 29 is not particularly limited, but in order to stabilize the position of the displacer 14, it is preferable that the restricting rod 29 has rigidity. From this viewpoint, it is preferable that the restricting rod 29 is made of metal. The restricting rod 29 may be a member that is different from a rod-like member, as long as it is a member that is common to the first groove portion 27 and the second groove portion 28. For example, a curved member or a plate-like member may be used as the restricting rod 29.

[0056] (Action and effect) In variant 1 of the first embodiment, by having the first groove portion 27, the second groove portion 28, and the regulating rod 29, the opposing position between the side surface 14A of the displacer 14 and the wall surface 21A of the regulating wall portion 21 is less likely to shift in the surface direction of the wall surface 21A of the regulating wall portion 21.

[0057] (Variation 4) In the holding jig 10 according to the first embodiment, as shown in FIG. 6 , the peripheral surface 16A of the through hole 16 of the holder 11 may form an inclined surface 30. This embodiment is referred to as Modification 4 of the first embodiment. FIG. 6 is a cross-sectional view for explaining an example of the holding jig 10 according to Modification 4 of the first embodiment. FIG. 6 is a cross-sectional view passing through the center CT of the through hole 16. Note that in FIG. 6 , for convenience of explanation, only the portion that appears at the position of the cross section is shown, and other portions outside the position of the cross section are omitted. This also applies to FIGS. 7 , 8A, and 8B. Because the portion of the displacer 14 corresponding to the exposed region ER forms the peripheral surface 16A of the through hole 16, Modification 4 of the first embodiment can be realized by at least the portion of the displacer 14 corresponding to the exposed region ER forming an inclined surface (the inclined surface of the exposed region ER becomes the inclined surface of the peripheral surface of the through hole 16).

[0058] (Inclined surface of peripheral part) The inclined surface 30 slopes downward from the upper edge 16B of the through-hole 16 toward the inside of the through-hole 16 (toward the center CT in the example of FIG. 6). The inclination angle α of the inclined surface 30 of the peripheral surface portion 16A is not particularly limited, but as described above, when the object to be held M is a container 200 and the main body of the container 200 has a shape that tapers downward, it is preferable that the inclination angle α of the inclined surface 30 be determined so as to correspond to the tapered shape of the main body.

[0059] According to the fourth modification of the first embodiment, the inclined surface 30 having a predetermined inclination angle α is formed on the peripheral surface 16A, which makes it easier for the outer peripheral surface 210A of the main body 210 of the container 200 to fit into the peripheral surface 16A of the through-hole 16 while avoiding tilting of the container 200, and makes it less likely that the container 200 will be held by the holding jig 10 while being tilted relative to the holding jig 10. The tilt of the container 200 means that the center BCT of the container 200 shown in Fig. 11 (the center BCT of the container 200 is indicated by a dashed line in Fig. 11) is tilted with respect to the up-down direction (Z-axis direction).

[0060] (Variation 5) In the holding jig 10 according to the first embodiment, as shown in FIG. 7, the holder 11 may be provided with a protrusion 31 on the upper edge 16B of the through hole 16. This embodiment is referred to as Modified Example 5 of the first embodiment. FIG. 7 is a cross-sectional view for explaining one example of the holding jig 10 according to Modified Example 5 of the first embodiment. FIG. 7 is a cross-sectional view passing through the center of the through hole 16. Since the displacer 14 forms the through hole 16, Modified Example 5 of the first embodiment can be realized by forming a protrusion on the upper surface 14B of the displacer 14.

[0061] In the example of Figure 1 etc., the portion of the displacer 14 corresponding to the exposed region ER forms the peripheral portion 16A of the through hole 16, so in variant example 5 of the first embodiment, a protrusion is formed on the upper surface 14B at the upper end position of the portion of the displacer 14 corresponding to the exposed region ER, so that a protrusion 31 can be formed on the upper surface 14B of the displacer 14 at a position corresponding to the upper edge portion 16B of the through hole 16 (i.e., the protrusion formed at a predetermined position on the upper surface 14B of the displacer 14 corresponds to the protrusion 31 on the upper edge portion 16B of the through hole 16).

[0062] According to the fifth modification of the first embodiment, a protrusion is formed at a predetermined position on the upper surface of the displacer 14, thereby making it possible to create a state in which the protrusion 31 is provided on the upper edge 16B of the through-hole 16. Furthermore, since the holding jig 10 has the protrusion 31 on the upper edge 16B of the through-hole 16, when a pressing force is applied to the container 200 and the lid 290 between the holding jig 10 and the pressing body 310 in the sealing device 300 described below, the action of the pressing force can be concentrated at a position between the protrusion 31 of the holding jig 10 and the pressing body 310, and a strong local force can be applied to the container 200 and the lid 290.

[0063] (Variation 6) In the holding jig 10 according to the first embodiment, as shown in FIGS. 8A and 8B, the holder 11 may have an extension 32 formed on the lower surface 14C of the displacer 14, the extension 32 extending along the circumferential surface 16A of the through hole 16. This embodiment is referred to as Modification 6 of the first embodiment. FIGS. 8A and 8B are cross-sectional views for explaining one example of the holding jig 10 according to Modification 6 of the first embodiment. FIGS. 8A and 8B are cross-sectional views passing through the center CT of the through hole 16.

[0064] (extending part) The extension portion 32 is configured as a portion that extends downward along the side surface 14A from a predetermined portion of the lower surface 14C, including the lower edge of the side surface 14A of the displacer 14. The position on the lower edge of the side surface 14A of the displacer 14 at which the extension portion 32 is formed is a position on the side surface 14A of the displacer 14 that forms at least the peripheral surface portion 16A of the through-hole 16, i.e., a position that forms the exposed region ER, and the extension portion 32 is formed as a portion that extends downward from that position.

[0065] As shown in Figures 8A and 8B, the auxiliary holes 17 in the base plate 12 are formed to avoid the areas where the extension portions 32 are formed, and the size of the auxiliary holes 17 is larger than that of the through holes 16.

[0066] According to variant example 6 of the first embodiment, an extension portion 32 is formed in the through hole 16, which makes it possible to increase the contact area between the container 200 and the peripheral portion 16A of the through hole 16, making it easier to stably hold the container 200 in the holding jig 10.

[0067] However, when the object to be held M is a container 200, and the container 200 has a body portion 210 that tapers downward, forming the extension portion 32 in the through hole 16 may increase the contact area more easily when the container 200 is held by the holding jig 10 in a state in which the container 200 is tilted relative to the holding jig 10. Therefore, it is preferable that the sixth modification of the first embodiment be combined with the fourth modification of the first embodiment. In this case, as shown in FIG. 8B , the peripheral surface 16A of the through hole 16 is formed as an inclined surface 30, and the holder 11 has an extension portion 32 formed on the lower surface 14C of the displacer 14, the extension portion 32 extending along the inclined surface 30 of the peripheral surface 16A. In this case, the body portion 210 of the container 200 can be more easily fitted to the peripheral surface 16A of the through hole 16 while avoiding tilting of the container 200.

[0068] (Variation 7) In the holding jig 10 according to the first embodiment, as shown in FIGS. 9A and 9B, a protective plate 33 may be provided so as to cover at least a portion of the upper surface 11B of the holder 11. In this case, it is preferable that the protective plate 33 cover at least a portion of the upper surface 14B of the displacer 14. This embodiment is referred to as Modified Example 7 of the first embodiment. FIG. 9A is a plan view illustrating an example of the holding jig 10 according to Modified Example 7 of the first embodiment. FIG. 9B is a side view illustrating an example of the holding jig 10 according to Modified Example 7 of the first embodiment.

[0069] (protective plate) The protective plate protects the upper surface 11B side of the holder 11. Similar to the base plate 12, the protective plate 33 is provided with auxiliary holes 18. In the example of FIG. 9A, a through hole 16 is formed between the auxiliary hole 18 of the protective plate 33 and the auxiliary hole 17 of the base plate 12, as shown in FIG. 9B. The size of the auxiliary hole 18 of the protective plate 33 is preferably larger than the size of the through hole 16 when the through hole 16 is in an expanded state. This exposes at least a portion of the upper surface 14B of the displacer 14 inside the auxiliary hole 18 of the protective plate 33, thereby exposing the upper edge 16B of the through hole 16. In a case where the object to be held M is a container 200 having a flange 240, the flange 240 of the container 200 can be reliably brought into contact with the upper edge 16B of the through hole 16.

[0070] The material of the protection plate 33 is not particularly limited, but from the viewpoint of increasing rigidity, it is preferably a metal.

[0071] (fixing member) As shown in FIG. 22, it is preferable that fixing members 38 for fixing the position of the protective plate 33 are detachably attached to the protective plate. In the example of FIG. 22, first fixing members 38A are provided as detachable fixing members 38. FIG. 22 is a plan view for explaining an example of a holding jig 10 according to Modification 7 of the first embodiment. The first fixing members 38A are provided at three of the four corners. A second fixing member 38B is provided at the remaining corner. It is preferable that this second fixing member 38B is not provided so as to be easily detachable like the first fixing member 38A. An example of the first fixing member 38A is a detachable screw. An example of the second fixing member 38B is a rivet for crimping.

[0072] In this case, it is preferable that protective plate 33 is not bonded to holder 11 on the upper surface side of holder 11. In such a case, when fixing member 38 is removed, protective plate 33 is configured to be displaceable in a planar direction with the thickness direction of protective plate 33 as the normal line. In the example of Fig. 22, when first fixing member 38A is removed, protective plate 33 is configured to be rotatable and displaceable around second fixing member 38B in a planar direction with the thickness direction of protective plate 33 as the normal line (in Fig. 22, the rotational direction of protective plate 33 is indicated by arrow SL).

[0073] (Variation 8) The holding jig 10 according to the first embodiment may be provided with a positioning structure 35 as shown in Fig. 14. This embodiment is referred to as Modification 8 of the first embodiment. Fig. 14 is a perspective view for explaining one example of the holding jig 10 according to Modification 8 of the first embodiment.

[0074] (positioning structure) When the object to be held that contacts the through hole 16 of the holding jig 10 is defined as the first object to be held, the positioning structure 35 is a structure that has the function of determining the position (planar position) of the second object to be held that is mounted above the first object to be held (including the case where the second object is overlapped on the first object to be held) above the first object to be held (the +Z direction side in FIG. 14). In this case, the holding object M has the first object to be held and the second object to be held. Note that the planar position of the second object to be held refers to the surface direction of a plane (XY plane in FIG. 14) whose normal is the thickness direction of the holding jig 10 (the Z-axis direction in FIG. 14).

[0075] The position of the positioning structure 35 is not particularly limited, but in the example of FIG. 14, the positioning structure 35 is provided on the holder 11. In the example of FIG. 14, the positioning structure 35 is configured by a combination of multiple protruding pieces 34. The protruding pieces 34 are provided so as to rise upward from the upper surface 14B of the displacer 14. The protruding pieces 34 may rise directly upward or diagonally upward. In the example of FIG. 14, the protruding pieces 34 rise in a direction away from the center of the through-hole 16 (outward) at a slight diagonal.

[0076] It is preferable that the protruding piece 34 be able to expand in the direction of arrow K1 depending on the size of the second object to be held when the second object to be held is placed on the first object to be held. In this case, it becomes easy to determine the position of the second object to be held relative to the first object to be held for second objects of various sizes. This can be achieved, for example, by making the protruding piece 34 out of a flexible material such as metal or plastic. From the standpoint of heat resistance, it is preferable that the protruding piece 34 be made of metal. This also applies to the slide member 36 described later using Figure 15 etc. In Figure 14, the protruding piece 34 is made of a wire-like metal member. However, these are merely examples and do not limit the material and shape of the protruding piece 34.

[0077] Furthermore, it is preferable that the protruding piece 34 is configured to be able to advance and retreat along the rising direction (along the direction of arrow K2 in FIG. 14). Being able to advance and retreat means that it is possible to form an advanced state and a retreated state. The advanced state refers to a state in which the protruding piece 34 extends further upward from the upper surface 14B of the displacer 14. The retreated state refers to a state in which the protruding piece 34 sinks further downward from the upper surface 14B of the displacer 14. This can be specifically achieved, for example, by drilling a hole in the displacer 14 at a position on the base end side of the protruding piece 34, placing an elastic material inside the hole, connecting the elastic material to the protruding piece 34, and allowing the advanced state and the retreated state to be formed according to the expansion and contraction of the protruding piece 34.

[0078] (Another example of a positioning structure) (Another example 1) In FIG. 14 , the positioning structure 35 is provided on the displacer 14, but the position and structure of the positioning structure 35 are not limited thereto. For example, as shown in the above-described modified example 7 of the first embodiment, when the holding jig 10 has a protective plate 33, the positioning structure 35 may be provided on the upper surface of the protective plate 33, as shown in FIGS. 15A and 15B . Such a positioning structure 35 may be referred to as Alternative Example 1. FIG. 15A is a plan view illustrating an example of the holding jig 10 according to the modified example 8 of the first embodiment. FIG. 15B is a side view (a side view of the holding jig 10 shown in FIG. 15A ) illustrating an example of the holding jig 10 according to the modified example 8 of the first embodiment. The positioning structure 35 illustrated in FIGS. 15A and 15B is an example of Alternative Example 1, and the content of Alternative Example 1 is not limited to that shown in FIGS. 15A and 15B .

[0079] In the holding jig 10 shown in FIGS. 15A and 15B , multiple combinations of slide members 36 and rails 37 are provided at predetermined positions around the through-hole 16 on the upper surface (+Z direction side) of the protective plate 33. The slide members 36 are formed in a convex shape rising upward from the rails 37 and are attached to the rails 37 below the slide members 36. The slide members 36 are configured to slide along the rail surfaces of the rails 37. The rails 37 are fixed on the protective plate 33. Both ends of the rails 37 in the sliding direction (the direction along arrow K3 in FIGS. 15A and 15B ) are preferably configured to prevent the slide members 36 from slipping out. Specifically, for example, both ends of the rails 37 are preferably closed. This facilitates restricting the movement range of the slide members 36. Even with this configuration, it is easy to determine the position of the second object to be held relative to the first object to be held, for second objects of various sizes. The slide members 36 are preferably biased toward the center of the through-hole 16 by an elastic member such as a spring or a buffer material. In this case, the plurality of slide members 36 may be connected by an elastic member, or each slide member 36 may be connected to its own elastic member.

[0080] (Another example 2) In FIGS. 15A and 15B , the entire positioning structure 35 is provided in the region above the protective plate 33, but the position and structure of the positioning structure 35 are not limited thereto. As shown in FIGS. 20A and 20B , the slide member 36 may be configured to extend from the protective plate 33 to the position of the upper edge 18B of the through-hole 16. This example of the positioning structure 35 may be referred to as Alternative Example 2. FIG. 20A is a plan view showing an example of a holding jig 10 according to Modification 8 of the first embodiment. FIG. 20B is a longitudinal cross-sectional view schematically showing the state of the longitudinal cross section taken along line EE in FIG. 20A . The positioning structure 35 illustrated in FIGS. 20A and 20B is an example of Alternative Example 2, and the content of Alternative Example 2 is not limited to that shown in FIGS. 20A and 20B .

[0081] 20A and 20B, similar to the example shown in FIG. 15, the positioning structure 35 includes a rail 37 and a slide member 36. The slide member 36 has an inclined end surface (inner end surface 36B) closer to the through hole 16, which slopes downward from an upper end 36C of the inner end surface 36B toward a lower end 36A. A hanging portion 41 that hangs down toward the displacer 14 is formed on the lower end 36A side of the inner end surface 36B. The lower end of the hanging portion 41 forms the lower end 36A. If a gap exists between the lower end 36A and the upper surface 14B of the displacer 14, the size of the gap is preferably smaller than the thickness of the object to be held M. The separation distance between the lower end 36A and the upper surface 14B of the displacer 14 (the upper edge 16B of the through hole 16) is preferably as close to zero as possible. However, this does not prevent a gap from being formed between the lower end portion 36A and the upper surface 14B of the displacer 14. The upper end portion 36C is preferably formed so as to be positioned outward of both the first and second held objects in a plan view of the holding jig 10.

[0082] The slide member 36 is preferably provided with a biasing structure 40 that biases the slide member 36 inward of the through-hole 16 (toward the center CT in the example of FIG. 20A). An example of the biasing structure 40 is an elastic member 39 as shown in FIG. 20B. Note that, for the sake of convenience, the elastic member 39 is omitted from FIG. 20A. Examples of the elastic member 39 include a spring, rubber, etc.

[0083] The biasing structure 40 is not limited to the examples shown in FIGS. 20A and 20B. For example, it may be configured as shown in FIG. 21. FIG. 21 is a plan view showing one example of the holding jig 10 according to Modification 8 of the first embodiment. In this example, two slide members 36 adjacent to each other in the circumferential direction of the through hole 16 are connected by an elastic member 39. Even in this case, the elastic force of the elastic member 39 can bias the slide members 36 inward of the through hole 16.

[0084] (Other example 3) The positioning structure 35 may have a structure as shown in FIGS. 30A, 30B, 31, 32A, and 32B. Such an example of the positioning structure 35 may be referred to as Alternative Example 3. FIG. 30A is a plan view showing an example of a holding jig 10 according to Modification 8 of the first embodiment. FIG. 30B is a longitudinal sectional view schematically showing the state of the longitudinal section taken along line EE in FIG. 30A. FIGS. 31 and 32A are plan views showing another example of a holding jig 10 according to Modification 8 of the first embodiment. FIG. 30B is a longitudinal sectional view schematically showing the state of the longitudinal section taken along line GG in FIG. 32A. The positioning structures 35 illustrated in FIGS. 30A, 30B, 31, 32A, and 32B are all examples of Alternative Example 3, and the configuration of Alternative Example 3 is not limited to FIGS. 30A, 30B, 31, 32A, and 32B.

[0085] In the holding jig 10 shown in the example of FIGS. 30A and 30B, a positioning structure 35 is provided on the upper surface side (+Z direction side) of the protective plate 33. The positioning structure 35 includes a plurality of rotating members 43. In the holding jig 10 shown in this example, support shafts 42 are provided corresponding to the rotating members 43. In the holding jig 10 shown in this example, the support shafts 42 are arranged in an area above the protective plate 33. The support shafts 42 support the rotating members 43. In this example, the support shafts 42 are configured so that a head 47 formed at the upper end portion of the support shaft 42 passes through a hole 48A of a bearing 48 of the rotating member 43 and reaches the protective plate 33. In the example of FIGS. 30A and 30B, the support shafts 42 are fixed to the protective plate 33. A predetermined portion on the tip 42A side (-Z direction side) of the support shaft 42 extends into the protective plate 33, and the portion of the support shaft 42 that extends into the protective plate 33 is fixed to the protective plate 33. At this time, there is no particular limitation on the method for fixing the portion of the support shaft 42 that extends into the protective plate 33 to the protective plate 33. For example, a screw structure (a so-called half screw) may be formed on a portion of the outer circumferential surface of the support shaft 42 from the tip (lower end) to a predetermined position (a predetermined position toward the upper side), and at least a part of the portion where the screw structure is formed may be screwed into the protective plate 33, thereby fixing the portion of the support shaft 42 that extends into the protective plate 33 to the protective plate 33.

[0086] (Rotating member) 30A and 30B, the rotating member 43 is rotatable around a support shaft 42. The rotating member 43 also has a bearing 48 having a hole 48A that penetrates vertically, an arm 44 that is connected to a predetermined position on the upper end side of the outer circumferential surface of the bearing 48 and extends in a direction away from the bearing 48, and a pin 45 that hangs down from the tip 44A of the arm 44. The arrangement of the rotating member 43 is not particularly limited as long as it can perform the function of determining the position of the second object to be held. In the example of FIG. 30A, two combinations of two rotating members (a combination of rotating member 43A and rotating member 43B, and a combination of rotating member 43C and rotating member 43D) (i.e., four rotating members 43) are arranged adjacent to each other outside the through hole 16. One set of rotation members 43 (a combination of rotation members 43A and 43B) and another set of rotation members 43 (a combination of rotation members 43C and 43D) are arranged on opposite sides of the center CT of the through hole 16 along the outer periphery of the through hole 16 (the -X direction side and the +X direction side in the example of FIG. 30A ). Each set of rotation members 43, 43 is configured so that the rotation direction K4 of one rotation member 43 and the rotation direction K4 of the other rotation member 43 are opposite to each other. For example, in the case of the combination of rotation members 43A and 43B, when rotation member 43A rotates in the +K4 direction, rotation member 43B rotates in the -K4 direction. When rotation member 43A rotates in the -K4 direction, rotation member 43B rotates in the +K4 direction. This allows rotation members 43A and 43B to rotate so that their pins 45 approach each other and also so that their pins 45 move away from each other. The combination of the rotary members 43C and 43D can also perform a rotation operation in which the rotation directions K4 are opposite to each other.

[0087] (Gear) The structure for performing the rotational movement such that the rotation directions K4 are opposite to each other is not particularly limited. In the example of Fig. 30A, this is achieved by the meshing structure of gears 46, 46. For example, in the case of a combination of rotating members 43A and 43B, a gear 46 is fixed to the lower end side of the bearing 48 of rotating member 43A, and a gear 46 is also fixed to the lower end side of the bearing 48 of rotating member 43B. The gears 46, 46 arranged on rotating members 43A and 43B mesh with each other, so that they rotate in opposite directions to each other. The configuration of the gear 46 is similar to that of the combination of rotating members 43C and 43D.

[0088] The rotating member 43 is provided with a pin 45, and it is preferable that the lower end (tip 45A) of the pin 45 is located below the upper surface of the protective plate 33 and slightly above the upper surface 14B of the displacer 14.

[0089] Furthermore, the pin 45 extends obliquely downward from the connection portion with the arm 44 toward the tip 45A toward the center CT, but this is just one example. For example, the pin 45 may extend vertically downward. Furthermore, the pin 45 may be bent or curved partially or entirely.

[0090] (Arm rotation range) The rotation range of the arm 44 on the rotating member 43 (maximum rotation angle along the direction of arrow K3) is not particularly limited. For example, the rotation range of the arm 44 may be determined so that, in a plan view of the holding jig 10, the tip 45A of the pin 45 is within the formation area of ​​the auxiliary hole 18 of the protective plate 33. Alternatively, the rotation range of the arm 44 may be determined so that the tip 45A of the pin 45 is outside the formation area of ​​the auxiliary hole 18 of the protective plate 33. The position of the arm 44 when the tip 44A of the arm 44 is closest to the center CT is not particularly limited. In the examples of FIGS. 30A, 31, 32A, etc., positioning is performed for each combination of rotating members 43, 43. For example, the arms 44 of the rotating members 43A and 43B are positioned so that when the second object to be held is placed above the first object to be held, the arms 44 of the rotating members 43A and 43B can rotate in the +K4 direction and the -K4 direction, respectively, depending on the size of the second object to be held. In the examples shown in Figures 30A, 31, and 32A, even when the first object to be held is held at the upper edge 16B of the through-hole 16, the arms 44 of the rotating members 43A and 43B can rotate in the +K4 direction and the -K4 direction, respectively, depending on the size of the first object to be held. The same applies to the arms 44 of the rotating members 43C and 43D.

[0091] The rotating member 43 is preferably biased so that the tip 44A of the arm 44 rotates in a direction approaching the center CT of the through-hole 16. In this case, when the first and second objects to be held are held by the holding jig 10, even if the rotating member 43 rotates so that the tip 44A of the arm 44 moves away from the center CT of the through-hole 16, when the first and second objects to be held are removed from the holding jig 10, the rotating member 43 rotates in a direction so that the tip 44A of the arm 44 approaches the center CT of the through-hole 16, and can return to approximately its original position.

[0092] (Relief area) When the rotation range of the arm 44 is determined so that the tip 45A of the pin 45 is outside the formation area of ​​the auxiliary hole 18 in the protective plate 33, it is preferable to form a recess 49 as shown in FIGS. 31, 32A, etc. In this case, even if the tip 45A of the pin 45 is located below the upper surface of the protective plate 33, it is possible to prevent the tip 45A of the pin 45 from colliding with the protective plate 33 as the rotating member 43 rotates. In the example shown in FIGS. 31 and 32A, the recess 49 is formed as an arc-shaped notch in a plan view of the holding jig 10. However, this is just one example, and the structure of the recess 49 is not limited to this example. The size of the recess 49 may be determined appropriately depending on conditions such as the sizes of the first and second objects to be held.

[0093] (extending part) As shown in the examples of FIGS. 32A and 32B , the positioning structure 35 preferably includes a first extension portion 50 and a second extension portion 51 extending from the rotating member 43 in a direction away from the support shaft 42. In the example of FIG. 32A and other figures, the first extension portion 50 and the second extension portion 51 are formed on the outer circumferential end of the gear 46 and protrude outward beyond the teeth of the gear 46. The first extension portion 50 is positioned so that, when it comes into contact with a protruding member 410 (described later), the tip end 44A of the arm 44 rotates in a direction away from the center CT of the through hole 16. The second extension portion 51 is positioned so that it comes into contact with the rotation restricting member 52 when the tip end 44A of the arm 44 rotates in a direction toward the center CT of the through hole 16. Therefore, the rotation restricting member 52 is positioned so that it can come into contact with the second extension portion 51. When the tip 44A of the arm 44 of the rotating member 43 rotates in a direction approaching the center CT of the through-hole 16, the rotation of the rotating member 43 can be stopped at a position where the second extension portion 51 comes into contact with the rotation restricting member 52. In the example of Fig. 32A, the first extension portion 50 and the second extension portion 51 are provided on the rotating members 43B and 43D, and the rotating members 43A and 43C are linked to the rotational movement of the rotating members 43B and 43D via the movement of the gear 46, so that the rotation range of the rotating members 43A and 43C is restricted in accordance with the restriction on the rotation of the rotating members 43B and 43D.

[0094] (Operation mechanism of positioning structure of Alternative Example 3) According to the holding jig 10 having the positioning structure 35 described in Alternative Example 3, when a first object to be held is placed on the holding jig 10, the rotating members 43 constituting the combination of rotating members 43, 43 rotate in opposite directions so that the positions of their pins 45 are spaced apart. For example, the pin 45 of rotating member 43A rotates in the +K4 direction, and the pin 45 of rotating member 43B rotates in the -K4 direction. Furthermore, the pin 45 of rotating member 43C rotates in the +K4 direction, and the pin 45 of rotating member 43D rotates in the -K4 direction. In the examples of FIGS. 30A, 31, 32A, etc., the rotating members 43 in the combination of rotating members 43, 43 are interlocked by gear 46, so that the rotating members simultaneously stop at positions corresponding to the outer diameter of the first object to be held.

[0095] When the second object to be held is placed above the first object to be held, it is guided to a position approximately directly above the first object to be held by a plurality of pins 45 provided on a plurality of rotating members (rotating members 43A, 43B, 43C, and 43D in the examples of FIGS. 30A, 31, and 32A, etc.). Thus, according to holding jig 10 having positioning structure 35 described in Alternative Example 3, the positioning of the second object to be held can be achieved by positioning structure 35 having rotating members.

[0096] The positioning structure 35 described in Modification 8 may be applied to a holding jig different from the holding jig 10. For example, a holding jig that differs from the holding jig 10 and has a through hole with a specific diameter (referred to as a fixed diameter type) may be prepared, and the positioning structure 35 may be provided for the fixed diameter type holding jig.

[0097] (Other example 4) The positioning structure 35 may have a structure as shown in FIGS. 40A and 40B. Such an example of the positioning structure 35 may be referred to as Alternative Example 4. FIG. 40A is a plan view showing an example of the holding jig 10 according to Modification 8 of the first embodiment. FIG. 40B is a longitudinal cross-sectional view schematically showing the state of the longitudinal cross section taken along line HH in FIG. 40A. The positioning structure 35 illustrated in FIGS. 40A and 40B is an example of Alternative Example 4, and the configuration of Alternative Example 4 is not limited to the example shown in FIGS. 40A and 40B. Note that in the example of the holding jig 10 according to Modification 10 shown in FIG. 40, the receiving member 13 is omitted, but this is just an example. In FIGS. 40B and 40C, reference numeral 71 denotes a gap space resulting from the omission of the receiving member 13.

[0098] (pin) In the holding jig 10 shown in the examples of FIGS. 40A and 40B , a positioning structure 35 is provided on the holder 11. In the example of FIG. 40A , the positioning structure 35 includes a combination of multiple pins 55. The pins 55 are preferably formed in a columnar shape and arranged so that their longitudinal direction generally aligns with the vertical direction of the holder 11. However, this is just one example, and the longitudinal direction of the pins 55 may be along the vertical direction or oblique to the vertical direction. In addition, in a plan view of the holder 11, the pins 55 are arranged at predetermined positions within the upper surface 14B of the displacer 14 and displace together with the displacer 14. In addition, the pins 55 are arranged so that their upper ends 55A can be positioned above the upper surface 14B of the displacer 14. The pins 55 may be formed to have the same length or different lengths.

[0099] (Access opening) In the positioning structure 35, the displacer 14 is formed with an opening serving as an insertion / removal port 57 through which a predetermined portion on the upper end 55A side of the pin 55 is inserted in the vertical direction. The size of the insertion / removal port 57 is formed to be approximately slightly larger than the size of the outer circumferential surface of the pin 55. The pin 55 is displaced in the vertical direction from the insertion / removal port 57.

[0100] (mounting holes) In the positioning structure 35, the displacer 14 is provided with a mounting hole 58 at a predetermined position on the lower surface 14C of the displacer 14 for mounting a receiving member 60, which will be described later.

[0101] (receiving member) The positioning structure 35 is provided with a receiving member 60. The receiving member 60 is fitted into a mounting hole 58. In the example of FIG. 40, the receiving member 60 is fixed to the displacement element 14 by a fixing member 59. An example of the fixing member 59 is a screw. The receiving member 60 is formed in a shape that has an opening on its top surface and that defines a space 61 inside (toward the depth) from the opening. In a plan view of the holder 11, an opening 62 of the receiving member 60 is located at the loading / unloading opening 57.

[0102] (vertical movement mechanism) In another example 4, a vertical movement mechanism is provided to move the pin 55 up and down. The vertical movement mechanism is not particularly limited, but from the viewpoint of structural simplicity, it is preferable to employ a biasing structure (sometimes referred to as a pin biasing structure 63) that applies a biasing force to the pin 55 in an upward direction. The pin biasing structure 63 is not particularly limited as long as it is a structure that can apply a biasing force to the pin 55, and an example of the structure shown in FIG. 40 is an example of the pin biasing structure 63. An example of the pin biasing structure 63 is one that is configured so that the pin 55 moves upward when a downward pressing force is applied to the pin 55 and then the pressing force is released. In the example shown in FIG. 40B, the pin biasing structure 63 has an elastic member 56. The elastic member 56 is disposed between the lower end 55B of the pin 55 and the bottom surface 64 of the space 61 of the receiving member 60, with the lower end of the elastic member 56 disposed on the bottom surface 64 and the upper end of the elastic member 56 disposed on the lower end of the pin 55. 40B, a spring material such as a coil spring is used as elastic member 56. Elastic member 56 biases pin 55 upward when pin 55 is pressed downward.

[0103] According to Alternative Example 4, when a second object to be held is placed, the position of the second object to be held is determined by a plurality of pins 55. For example, if the second object to be held is a lid, the outer periphery of the lid comes into contact with pins 55, and the position of the lid is determined according to the position of pins 55. Also, according to Alternative Example 4, when a downward pressing force is applied to pin 55, it can be pressed downward (in the direction of arrow FD in FIG. 40B) as shown in FIG. 40C. FIG. 40C is a cross-sectional view showing an example of a state in which pin 55 is pressed downward. When pin 55 is pressed downward, an upward stress is applied to pin 55 from elastic member 56. When the downward pressing force applied to pin 55 is removed, pin 55 is pressed upward by the upward biasing force applied to pin 55 from elastic member 56. Therefore, according to another example 4, in a sealing device described later that is provided with a holding jig, when the distance between the pressing body and the holding jig is reduced so that the pressing body presses the second holding object against the first holding object, the pin 55 can be pressed downward, thereby reducing the risk that the pin 55 will hinder the pressing body and the holding jig 10 from getting closer to each other.

[0104] (Upper movement restriction structure) In Alternative Example 4, as shown in Fig. 42A , when pin 55 is pushed upward, an upper movement restricting structure 67 may be provided that defines an upper limit position to which pin 55 can be pushed up. In Fig. 42 , upper movement restricting structure 67 is configured by forming flange 65 at the lower end of pin 55 that spreads outward with the longitudinal direction of pin 55 as the line of sight, and forming eaves 66 by making the outer diameter of flange 65 and the diameter of opening 62 of receiving member 60 larger than the diameter of insertion / removal opening 57. With such upper movement restricting structure 67, even if pin 55 is pushed upward, upward displacement of pin 55 is stopped when flange 65 of pin 55 comes into contact with eaves 66 on bottom surface 14C of displacer 14 below insertion / removal opening 57.

[0105] (Other example 5) The positioning structure 35 may have a structure as shown in FIGS. 41A, 41B, and 41C. Such an example of the positioning structure 35 may be referred to as Alternative Example 5. FIG. 41A is a plan view showing an example of a holding jig 10 according to Modification 8 of the first embodiment. FIG. 41B is a longitudinal cross-sectional view schematically showing the state of the longitudinal cross-section taken along line II in FIG. 41A. FIG. 41C is a longitudinal cross-sectional view schematically showing the state of the longitudinal cross-section taken along line JJ in FIG. 41C. The positioning structure 35 illustrated in FIGS. 41A, 41B, and 41C is an example of Alternative Example 5, and the configuration of Alternative Example 5 is not limited to the examples shown in FIGS. 41A, 41B, and 41C. Note that in the example of the holding jig 10 according to Modification 10 shown in FIG. 41, the receiving member 13 is omitted, but this is just an example. In FIG. 41B, reference numeral 71 denotes a gap space resulting from the omission of the receiving member 13.

[0106] 41A, 41B, and 41C, a positioning structure 35 is provided on the holder 11. In the example of FIG. 41, the positioning structure 35 has a combination of multiple pins 55, a receiving member 60, and an elastic member 56, similar to Example 4. The shape of the pin 55 may be similar to that of Example 4, and therefore a description thereof will be omitted. In Example 5, similar to Example 4, the pin 55 is arranged at a predetermined position within the upper surface 14B of the displacer 14 in a plan view of the holder 11 so as to be displaceable in the vertical direction.

[0107] (Through hole for insertion and removal) In the positioning structure 35, the displacer 14 has an insertion / removal through-hole (first insertion / removal through-hole 68) that forms an insertion / removal opening 57 through which a predetermined portion of the upper end 55A of the pin 55 is inserted vertically. The first insertion / removal through-hole 68 has a long shape, or a slot shape, in a plan view of the holder 11, and in the example of FIG. 41 , it is formed into a chamfered rectangle. The longitudinal direction of the first insertion / removal through-hole 68 is preferably aligned with the displacement direction of the displacer 14. In this case, even if the displacer 14 is displaced, the pin 55 can be prevented from moving in conjunction with the displacer 14.

[0108] In the positioning structure 35, an insertion / removal through hole (second insertion / removal through hole 69) that forms the insertion / removal opening 57 through which the pin 55 is inserted vertically is also formed in the base plate 12. In a plan view of the holder 11, the second insertion / removal through hole 69 is aligned so as to be substantially overlapped with the first insertion / removal through hole 68. The pin 55 is attached so as to be displaceable in the vertical direction while inserted through both the first insertion / removal through hole 68 and the second insertion / removal through hole 69.

[0109] (receiving member) The positioning structure 35 is provided with a receiving member 60. As shown in the fourth example, the receiving member 60 is formed in a shape that has an opening on its top surface and a space 61 formed from the opening 62 to the interior (toward the back). In a plan view of the holder 11, the receiving member 60 is positioned so that the opening 62 of the receiving member 60 roughly overlaps the position of the second insertion / removal through-hole 69. The receiving member 60 is attached to the bottom surface of the base plate 12. In the example of FIG. 40 , the receiving member 60 is fixed to the base plate 12 by a fixing member 59. An example of the fixing member 59 is a screw or the like.

[0110] (vertical movement mechanism) In Alternative Example 5, a vertical movement mechanism for moving pin 55 up and down is provided. The vertical movement mechanism in Alternative Example 5 may be configured similarly to Alternative Example 4. That is, the vertical movement mechanism in Alternative Example 5 preferably employs a pin biasing structure 63 that applies an upward biasing force to pin 55. In the example shown in FIGS. 41B and 41C , pin biasing structure 63 has an elastic member 56. Elastic member 56 is disposed between lower end 55B of pin 55 and bottom surface 64 of space 61 of receiving member 60, with the lower end of elastic member 56 disposed on bottom surface 64 and the upper end of elastic member 56 disposed at lower end 55B of pin 55. In the example of FIG. 40B , a spring material such as a coil spring is used as elastic member 56, but this is just one example. When pin 55 is pressed downward, elastic member 56 biases pin 55 upward (applies stress upward). Therefore, as shown in FIG. 41, the pin biasing structure 63 is configured so that after the pin 55 is pressed downward by a downward pressing force, the pin 55 moves upward when the pressing force is released.

[0111] According to another example 5, when the second object to be held is placed, the position of the second object to be held is determined by a plurality of pins 55. For example, if the second object to be held is a lid, the outer periphery of the lid comes into contact with the pins 55, and the position of the lid is determined according to the positions of the pins 55.

[0112] (Upper movement restriction structure) In Alternative Example 5, as shown in FIG. 42B , an upper movement restricting structure 67 may be provided to define an upper limit position to which the pin 55 can be pushed up when the pin 55 is pushed up. In FIG. 42 , the upper movement restricting structure 67 is configured by forming a flange 65 on the lower end 55B side of the pin 55, the flange 65 extending outward with the longitudinal direction of the pin 55 as the line of sight, and further forming an overhang 70. The overhang 70 in Alternative Example 5 is formed on the bottom surface of the base plate 12 by making the outer diameter of the flange 65 and the diameter of the opening 62 of the receiving member 60 larger than the diameter of the second insertion / removal through-hole 69 of the insertion / removal opening 57. With this upper movement restricting structure 67, even if the pin 55 is pushed up, the upward displacement of the pin 55 is stopped when the flange 65 of the pin 55 comes into contact with a portion of the bottom surface of the base plate 12 below the second insertion / removal through-hole 69 that corresponds to the overhang 70.

[0113] (Variation 9) The holding jig 10 according to the first embodiment may have a configuration in which an elastic member 72 is attached to a displacer 14, as shown in Figs. 43A and 43B. Such a configuration is referred to as Modification 9 of the first embodiment. Fig. 43A is a plan view showing one example of the holding jig 10 according to Modification 9 of the first embodiment. Fig. 43B is a view showing the main parts for schematically explaining one example of a structure in which an elastic member 72 is attached to a displacer 14 arranged on the upper surface 12A of the base plate 12.

[0114] In the example of the holding jig 10 according to the ninth modified example shown in FIGS. 43A and 43B, the receiving member 13 is omitted, but this is just one example. In the example shown here, a latch member 73 is provided at a predetermined position on a surface (second side surface 14A2) of adjacent displacers 14, excluding the surface (first side surface 14A1) facing the adjacent displacers 14 (surfaces that may come into contact with each other). In the example of FIG. 43, the latch member 73 is provided on the surface (second side surface 14A2) of the displacer 14 corresponding to the bottom side 140. In the example of FIG. 43, the latch member 73 is shaped like a screw having a head portion 73A and a body portion 73B. In addition, the elastic member 72 is provided with annular portions 74A and 74B as attachment portions at both ends, for example, as shown in FIGS. 43A and 43B, and the annular portion 74A on one end of the elastic member 72 is latched to the latch member 73. The annular portions 74A and 74B are merely examples, and are not particularly limited as long as they have a structure that allows the elastic member 72 to be attached to the displacer. Also, in Figures 43A and 43B, a spring material such as a coil spring is shown as an example of the elastic member 72. A latch member 75 is also provided at a predetermined position on the base plate 12, and the annular portion 74B on the other end of the elastic member 72 is latched onto the latch member 75. In the example of Figure 43, the position of the latch member 75 on the base plate 12 is determined so that the elastic member 72 is stretched when the displacer 14 is displaced so that the through-hole 16 widens, as shown by the dashed line in Figure 43A. In this case, as the displacer 14 is displaced so as to widen the through hole 16 (in the example of Figure 43A, the displacer 14 moves away from the position of the central CT), the elastic member 72 is stretched, and a restoring force (a force that tries to return to its original length) is generated in the elastic member 72, and stress is applied from the elastic member 72 to the displacer 14 so as to narrow the through hole 16 relative to the displacer 14 (so that the displacer 14 returns to a position corresponding to the state before the through hole 16 widened).

[0115] (Variation 10) In a holding jig 10 according to a ninth modification of the first embodiment, as shown in FIG. 44 , the position at which the elastic member 72 is attached to the displacer 14 and the position of the latch member 75 on the base plate 12 may be determined so that the elastic member 72 is compressed when the displacer 14 is displaced so as to widen the through-hole 16. This configuration is referred to as a tenth modification of the first embodiment. FIG. 44 is a plan view showing an example of a holding jig 10 according to the tenth modification of the first embodiment. In this case, as shown by the dashed line in FIG. 44 , as the displacer 14 is displaced so as to widen the through-hole 16, the elastic member 72 is compressed, which generates a restoring force of the elastic member, and stress is applied from the elastic member 72 to the displacer 14 so as to narrow the through-hole 16 relative to the displacer 14. Note that in the example of the holding jig 10 according to the tenth modification shown in FIG. 44 , the receiving member 13 is omitted, but this is merely an example.

[0116] (Variation 11) In the holding jig 10 according to the seventh modification of the first embodiment, as shown in Figs. 45A and 45B, a step 77 may be formed in an exposed region of the upper surface 14B of the displacer 14 that is exposed to the inside of the auxiliary hole 18 of the protective plate 33. This configuration is referred to as an eleventh modification of the first embodiment. Fig. 45A is a plan view schematically showing one example of the holding jig 10 according to the eleventh modification of the first embodiment. Fig. 45B is a cross-sectional view schematically showing the state of the longitudinal section taken along line KK in Fig. 45A.

[0117] In the holding jig 10 according to the seventh modification, a step 77 is formed on the upper surface 14B of the displacer 14, and the upper surface 14B of the displacer 14 is divided by the step 77 into an area AR1 at a lower portion 78 of the step 77 and an area AR2 at an upper portion 79 of the step 77. The position of the portion of the upper surface 14B (area AR1) of the displacer 14 that corresponds to the lower side of the step 77, i.e., the lower side 78, is located below the lower surface 33B (bottom surface) of the protective plate 33. Furthermore, in the holding jig 10 according to the seventh modification, as shown in FIGS. 45A and 45B , the position of the portion of the upper surface 14B (area AR2) of the displacer 14 that corresponds to the upper side 79, i.e., the upper side 79, is located above the lower surface 33B (bottom surface) of the protective plate 33. By providing such a step 77, when the displacer 14 is displaced so as to widen the through-hole 16 (for example, when the displacer 14 is displaced in the direction of arrow FH from the position of the displacer 14 shown by the dashed line to the position of the displacer 14 shown by the solid line in FIG. 45A ), the displacement of the displacer 14 can be stopped at the position where the step 77 of the displacer 14 contacts the inner surface 33C of the protective plate 33, and the upper limit of the size of the through-hole 16 can be defined. In addition, it is preferable that the position of the upper surface 14B of the upper part 79 of the displacer 14 is roughly aligned with the position of the upper surface 33A of the protective plate 33.

[0118] In a plan view of the holding jig 10, the step 77 is preferably formed in a shape that matches the edge shape of the auxiliary hole 18.

[0119] Furthermore, a boss portion 80 having a boss hole 81 for fixing the protective plate 33 is provided on the base plate 12 at a predetermined position on the upper surface 12A side outside the displacer 14. The protective plate 33 is disposed so as to be supported by an upper surface 80A of the boss portion 80. The boss portion 80 can function as a spacer that ensures a distance between the protective plate 33 and the base plate 12. The protective plate 33 is provided with a hole portion 83 for inserting a fixing member 82 at a position corresponding to the boss portion 80. The fixing member 82, such as a screw, is inserted through the hole portion 83 and fitted into the boss hole 81. At least a part of the portion of the displacer 14 corresponding to the lower portion 78 is sandwiched between the protective plate 33 and the base plate 12, as shown in FIG. 45B , and vertical movement of the displacer 14 (vertical wobbling) is restricted.

[0120] In the example of the holding jig 10 according to the modified example 11 shown in FIGS. 45A and 45B, the receiving member 13 is omitted, but this is just an example.

[0121] (Variation 12) In the holding jig 10 according to the seventh modification of the first embodiment, as shown in FIGS. 46A, 46B, and 46C, a displacement guide structure 85 that restricts the displacement direction of the displacer 14 may be provided on the lower surface 14C side of the displacer 14. This configuration is referred to as a twelfth modification of the first embodiment. FIG. 46A is a plan view schematically showing an example of the holding jig 10 according to the twelfth modification of the first embodiment. FIG. 46B is a cross-sectional view schematically showing a longitudinal section taken along line LL in FIG. 46A. FIG. 46C is a cross-sectional view schematically showing a longitudinal section taken along line MM in FIG. 46A. In FIG. 46A, the dashed line shows an example of the displacer 14 when displaced outward along the direction of arrow FH (in a direction away from the center CT in FIG. 46A). In addition, in FIG. 46C, the dashed line shows an example of the displacer 14 when displaced outward along the direction of arrow FH (in a direction away from the center CT in FIG. 46A).

[0122] (Displacement guide structure) The displacement guide structure 85 has an elongated hole 86 provided in the base plate 12 and a leg 87 provided on the underside 14C of the displacer 14. The elongated hole 86 is preferably formed so that its longitudinal direction is generally aligned with the displacement direction of the displacer 14 (in the examples of FIGS. 46A and 46C , the direction of arrow FH (this direction is specific for each displacer 14)). The leg 87 has a plurality of leg members 88 at positions corresponding to the elongated hole 86, and the plurality of leg members 88 are aligned generally along the longitudinal direction of the elongated hole 86. In the example of FIG. 46B , two leg members 88 are aligned along the longitudinal direction of the elongated hole 86. The shape of the leg member 88 is not particularly limited as long as it can be displaced along the longitudinal direction of the elongated hole 86. However, in the examples of FIGS. 46A to 46C , the leg member 88 has a cylindrical body 88B and a flange 88A formed at the lower end of the body 88B. The upper end side of the leg member 88 is fixed to the displacer 14. In the example of Fig. 46A to Fig. 46C, a thread groove is formed in a predetermined portion of the body portion 88B of the leg member 88 from the upper end toward the lower side. Furthermore, at least a part of the portion of the body portion 88B where the thread groove is formed is fitted (screwed) into the lower surface 14C (bottom surface) of the displacer 14. When the displacement guide structure 85 is provided, the leg portion 87 can be displaced in the space within the elongated hole portion 86 in the direction of arrow FH as shown in Fig. 46C, and the displacement of the displacer 14 can be restricted in this direction.

[0123] (Ring material) It is preferable that the leg portion 87 is provided with a ring member 89 arranged so as to go around the periphery of the body portion 88B. The ring member 89 is arranged between the flange portion 88A of the leg member 88 and the lower surface 14C of the displacer 14. The ring member 89 is also provided so as to be rotatable around the periphery of the body portion 88B. When such a ring member 89 is provided, the leg portion 87 can be displaced more smoothly in the space within the elongated hole portion 86 in the direction of the arrow FH as shown in FIG. 46C.

[0124] (Variation 13) In the holding jig 10 according to the seventh modification of the first embodiment, as shown in Fig. 47A and Fig. 47B, a covering material 90 (periphery covering material) having cushioning properties may be provided so as to surround and cover the outer periphery 10A of the holding jig 10. This configuration is referred to as a thirteenth modification of the first embodiment. Fig. 47A and Fig. 47B are a plan view and a side view, respectively, that schematically show one example of the holding jig 10 according to the thirteenth modification of the first embodiment.

[0125] In the holding jig 10 according to the thirteenth modification of the first embodiment, the material of the covering material 90 is not particularly limited as long as it has shock-absorbing properties, and examples thereof include rubber, silicone, and urethane materials. As shown in FIG. 47A and other figures, the covering material 90 preferably covers the outer periphery 10A of the holding jig 10 and the upper surface of the holding jig 10 (the upper surface 33A of the protective plate 33 in the example of FIG. 47A ) from the edge to a predetermined position slightly inside the upper surface (the inner surface of the holding jig 10 in a plan view). Furthermore, the covering material 90 preferably further covers the lower surface of the holding jig 10 (the lower surface 12B of the base plate 12 in the example of FIG. 47A ) from the edge to a predetermined position slightly inside the lower surface (the inner surface of the holding jig 10 in a plan view). In the holding jig 10, the covering material 90 is provided so as to contact the protective plate 33 and the base plate 12 but not to contact the displacer 14. Therefore, the risk that the covering material 90 will hinder the displacement of the displacer 14 is reduced.

[0126] According to the holding jig 10 of Modification 13, the covering material 90 is provided, which further reduces the risk of damaging other objects when the holding jig 10 falls and comes into contact with them, and also reduces the risk of damage to the holding jig 10. According to the holding jig 10 of Modification 13, the risk of damage to the holding jig 10 can also be reduced when the holding jig 10 is transported, etc.

[0127] (Variation 14) In the holding jig 10 according to the first embodiment, as shown in FIGS. 48A and 48B, grooves 92 may be provided in at least some of the displacers 14. This configuration is referred to as Modification 14 of the first embodiment. FIG. 48A is a plan view schematically showing one example of the holding jig 10 according to Modification 14 of the first embodiment. FIG. 48B is a view schematically showing one example of a state in which the displacers 14 are arranged on the upper surface 12A of the base plate 12.

[0128] (groove) In the holding jig 10 according to the fourteenth modification of the first embodiment, the displacer 14 has a groove 92 formed in at least a part of at least one of the side surface 14A, the upper surface 14B, and the lower surface 14C.

[0129] 48A and 48B, a first groove 93 is formed as the groove 92 in the upper surface 14B of the displacer 14. The first groove 93 is preferably formed in a portion of the upper surface 14B that is away from the portion that corresponds to the upper edge 16B of the through-hole 16. From the viewpoint of making it easier for contaminants to flow outward even if they adhere to the upper edge 16B, it is preferable that the longitudinal direction of the first groove 93 extend along the displacement direction of the displacer 14.

[0130] 48A and 48B, a second groove 94 is formed as the groove 92 on the side surface 14A of the displacer 14. Preferably, a plurality of gently curved convex mountain-shaped portions 95 are formed on the side surface 14A of the displacer 14 so as to be aligned in the vertical direction, and a second groove portion is formed between adjacent convex mountain-shaped portions 95. In this case, the second groove 94 is formed as a horizontal groove extending in the horizontal direction on the side surface 14A. Preferably, the second groove 94 is avoided from being formed on the surface of the side surface 14A that forms the through hole 16.

[0131] (Variation 15) In the holding jig 10 according to the seventh modification of the first embodiment, a protective plate 33 is provided so as to cover at least a portion of the upper surface 11B of the holder 11. In the holding jig 10 according to the seventh modification of the first embodiment, as shown in FIGS. 49A and 49B, a small through-hole 96 may be provided at a predetermined position on the protective plate 33, penetrating the protective plate 33 in the thickness direction of the protective plate 33 (the vertical direction in FIGS. 49A and 49B). This configuration is referred to as a fifteenth modification of the first embodiment. FIG. 49A is a plan view showing an example of a holding jig 10 according to a fourteenth modification of the first embodiment. FIG. 49B is a plan view showing an example of a holding jig 10 according to the fourteenth modification of the first embodiment. Note that the receiving member 13 is omitted in the example shown in FIGS. 49A and 49B, but this is merely an example. In FIG. 49B, reference numeral 71 denotes a gap space resulting from the omission of the receiving member 13.

[0132] (Small penetration) The small through-portions 96 penetrate the protective plate 33 and have an opening size smaller than that of a single displacer. The term "small through-portions 96 having an opening size smaller than that of a single displacer" refers to the fact that the small through-portions 96 are small enough that the top surfaces 14B of the displacers 14 are not completely exposed through the small through-portions 96 in a plan view of the holding jig 10. At least some of the small through-portions 96 are positioned so that they overlap at least a portion of the top surfaces 14B of the displacers 14 in a plan view of the holding jig 10. The layout of the small through-portions 96 is preferably such that, in a plan view of the holding jig 10, at least a portion of the top surfaces 14B of all the displacers 14 can be exposed upward through at least one small through-portion 96. While the small through-portions 96 are formed as circular holes in the example of FIG. 49A , this is merely an example. The small through-portions 96 may be non-circular holes or slit-shaped. Since the holding jig 10 is provided with the small through-hole 96, even if dirt adheres to the displacer 14 inside the holding jig 10, by pouring a cleaning liquid such as water from the top side of the holding jig 10, the cleaning liquid can be made to flow through the small through-hole 96 onto the top surface 14B of the displacer 14, and the displacer 14 can be effectively cleaned.

[0133] (Blindfold board) The holding jig 10 according to Modification 15 of the first embodiment preferably includes a blind plate 97 that covers the small through-holes 96 from above. The blind plate 97 is preferably detachable from the protective plate 33. Providing such a blind plate 97 reduces the risk of dust or other foreign matter falling from the top surface of the holding jig 10 into the small through-holes 96. The material of the blind plate 97 is not particularly limited, but plastic is preferred from the standpoint of lightness, and metal is preferred from the standpoint of strength. The shape of the blind plate 97 is not particularly limited as long as it can cover the small through-holes 96. However, from the standpoint of preventing movement, such as misalignment, in the planar direction of the protective plate 33 relative to the protective plate 33, it is preferable that the blind plate 97 have a shape that is generally similar to the shape of the protective plate 33, as shown in FIGS. 49A and 49B .

[0134] Next, a second embodiment will be described. The second embodiment is a sealing device 300 that uses the holding jig 10 described in the first embodiment.

[0135] [2 Second embodiment] [2-1 Sealing device configuration] As shown in Fig. 10, a sealing device 300 according to the second embodiment includes a pressing body 310 and the holding jig 10 described in the first embodiment. Fig. 10 is a side view showing an example of the sealing device according to the second embodiment. For the sake of convenience, Fig. 10 omits the illustration of the displacer 14, the base plate 12, etc.

[0136] The sealing device 300 has a support 320 that supports the pressing body 310 and the holding jig 10. The support 320 is provided with a vertical movement mechanism (a movement mechanism that moves the holding jig 10 in the direction of arrow F in FIG. 10) that moves the holding jig 10 up and down (not shown in FIG. 10). The vertical movement mechanism can be, for example, a combination structure of a gear and a rack as shown in FIG. 28A, etc., which will be described later with respect to the pressing body 310. The movement of the gear may be controlled by the movement of a lever as shown in FIG. 28A, etc., or may be controlled by a motor or the like. The holding jig 10 is connected to the vertical movement mechanism of the support 320 via a connecting member 330. The material of the connecting member 330 is not particularly limited as long as it can sufficiently support the holding jig 10, but a rigid material such as metal is preferable. The holding jig 10 starts from a predetermined position (lower position) that is a predetermined distance below (in the -F direction) the pressing body 310, and moves toward the pressing body to a predetermined position (upper position) that is closer to the upper side (in the +F direction) of the pressing body. The lower position and the upper position may be determined in advance depending on the type of the object M to be held, etc.

[0137] The pressing body 310 shown in the example of FIG. 10 is located directly above the holding jig 10 and is fixed to the support 320 on the upper side of the support 320. The pressing body 310 may be provided with a heating mechanism. In this case, the sealing device 300 functions as a heat-sealing device. The pressing body 310 has a pressing surface 310A, which faces the holding jig 10. The holding object M is subjected to a pressing force between the pressing surface 310A and the holding jig 10. If the pressing body 310 has a heating mechanism, it can heat the holding object M. The heating mechanism may be any mechanism capable of heating the pressing body 310. For example, a heater or the like can be used as the heating mechanism. The shape of the pressing surface 310A is not particularly limited. In the example of FIG. 10, the pressing surface 310A is formed in a flat shape. However, FIG. 10 is merely an example and does not limit the shape of the pressing body 310 or the pressing surface 310A.

[0138] (Sealing function) The sealing device 300 can achieve the sealing function as follows. The sealing function will be described below with reference to FIG. 11 , taking as an example a case where the object to be held M is a container 200 having a main body 210 and a flange 240 extending outward from an upper edge 250 of the main body 210. As shown in FIG. 11 , the container 200 has a main body 210 that tapers from the top to the bottom, and the main body 210 of the container 200 has an opening 260 at the top end, forming a space 230 surrounded by the main body 210 and the bottom 220. This also applies to the description of the operations and effects that will be described later.

[0139] The main body 210 of the container 200 is placed in the through hole 16 of the holding jig 10. At this time, the holding jig 10 is placed in a lower position (position N1 in FIG. 11). Next, the holding jig 10 moves in the +F direction from the lower position to an upper position (position N3 in FIG. 11). Even if the outer peripheral surface 210A of the main body 210 of the container 200 comes into contact with the through hole 16 of the holding jig 10 during the movement, the size of the through hole 16 can be increased to match the size of the outer peripheral surface 210A of the main body 210. If the weight of the container 200 is heavy, as the holding jig 10 moves upward, the size of the through hole 16 of the holding jig 10 gradually increases, and the outer peripheral surface 16A of the through hole 16 slides over the outer peripheral surface 210A of the container 200. When the holding jig 10 reaches a position where it comes into contact with the flange portion 240 of the container 200 (position N2 in Figure 11), the container 200 and the holding jig 10 move upward together while the container 200 is supported by the holding jig 10.

[0140] In the container 200, a lid 290 is placed on the container 200 so as to cover the opening 260 (and the space 230) on the top surface of the main body 210 and the flange 240. The lid 290 may be a paper lid or a plastic lid. The timing at which the lid 290 is placed on the container 200 is not particularly limited. It may be when the container 200 is placed in the sealing device 300, or when the container 200 is being moved upward together with the holding jig 10. However, the lid 290 is placed on the container 200 so as to cover the opening 260 on the upper side of the main body 210 and the flange 240 at a timing before the holding jig 10 receives the pressing force from the pressing body 310 at the upper position.

[0141] In the sealing device, the holding jig 10 reaches the upper position with the lid 290 placed on the container 200 so as to cover the upper opening 260 and flange 240 of the main body 210. Then, the container 200 and the lid 290 are interposed between the pressing body 310 and the holding jig 10, and the lid 290 and the container 200 are pressed against each other at the position of the flange 240 of the container 200. At this time, the lid and the container 200 are heated as necessary. In this manner, the lid 290 and the container 200 are joined together.

[0142] [2-2 Actions and Effects] A sealing device 300 according to the second embodiment uses the holding jig 10 described in the first embodiment. Therefore, according to the second embodiment, when the object to be held M is a container 200 having a flange portion 240 at its upper end, the container 200 can be firmly held by the holding jig 10 even if the containers 200 have different sizes, and a state in which the flange portion 240 is in contact with the upper edge portion 16B of the through hole 16 of the holding jig 10 can be created. Therefore, with the lid 290 positioned so as to cover the flange portion 240 and opening 260 of the container 200, the container 200 and the lid 290 can be sandwiched between the pressing body and the holding jig 10.

[0143] When the sealing device 300 of the second embodiment is controlled so that the holding jig 10 is placed at the lower end of the container 200 as shown in Figures 10 and 11 and the holding jig 10 is raised toward the upper end of the container 200, even if the size of the outer surface 210A of the main body 210 of the container 200 is not uniform, the size of the through hole 16 can be changed to match the size of the outer surface 210A, so that the holding jig 10 can be slid along the outer surface 210A of the main body 210 of the container 200.

[0144] Next, a modification of the second embodiment will be described.

[0145] [2-3 Variations] (Variation 1) In the sealing device 300 according to the second embodiment, the pressing body 310 is fixed, but the pressing body 310 may be configured to be movable up and down. This embodiment is referred to as Modification 1 of the second embodiment. Modification 1 of the second embodiment can be realized by providing a vertical movement mechanism on the support body 320 that moves the pressing body 310 up and down, and connecting the pressing body 310 to this vertical movement mechanism. In Modification 1 of the second embodiment, the holding jig 10 may be fixed, or may be configured to be movable up and down as described above.

[0146] (Vertical movement structure) The vertical movement structure can be exemplified by a combined structure of a gear and a rack. An example of the combined structure is a structure as shown in FIG. 28A, which will be described later. The gear may be connected to a motor or the like and electrically driven and controlled. The rack moves up and down as the gear rotates. The rack is connected to a pressing body 310, and is configured so that the pressing body 310 also moves up and down as the rack moves up and down. When the gear is driven by a motor or the like, the power source for driving the vertical movement structure can be electricity, and in this case the vertical movement structure is electrically controlled.

[0147] (Variation 2) In the sealing device 300 according to the second embodiment, the holding jig 10 is configured to be movable up and down, but it may also be configured to be movable in a direction (plane direction) along a plane having the vertical direction as the normal direction (not shown).

[0148] (Variation 3) In the sealing device 300 according to the second embodiment, as shown in Figs. 12A and 12B, the pressing surface 310A of the pressing body 310 may be an uneven surface. This embodiment is referred to as Modification 3 of the second embodiment. Fig. 12A is a diagram showing one example of the pressing body 310 used in the sealing device 300 according to Modification 3 of the second embodiment. Fig. 12B is a cross-sectional view schematically showing the vertical cross section taken along line DD in Fig. 12A.

[0149] As shown in FIGS. 12A and 12B , the pressing body 310 has multiple convex portions 360 formed concentrically from the outer peripheral edge 350 of the pressing surface 310A, and recesses 361 are formed between adjacent convex portions 360. This results in the pressing surface 310A having an uneven surface. While the examples shown in FIGS. 12A and 12B show three convex portions 360 formed on the pressing surface, this is merely an example, and two or fewer or four or more convex portions 360 may be formed. In the example shown in FIG. 12A , the pressing body 310 is formed in a circular shape in plan view, and as shown in FIG. 12B , a predetermined portion extending from the outer peripheral edge 350 toward the center MP is defined as a thick portion 311. The thick portion 311 is defined as a portion that is thicker than the thickness at the center MP of the pressing body 310. The convex portions 360 are formed in regions of the pressing surface 310A that correspond to the thick portion 311. When pressing body 310 comes into contact with holding object M, pressing body 310 presses holding object M with thick portion 311. An uneven surface is formed on pressing surface 310A, and convex portions 360 are formed on thick portion 311 as shown in FIG. 12A , so that the pressing force applied from pressing body 310 to holding object M can be concentrated on convex portions 360, and a stronger force can be applied from pressing body 310 to holding object M.

[0150] (Variation 4) The sealing device 300 according to the second embodiment may be provided with a vertical movement regulating structure as shown in Figs. 13A and 13B. This embodiment is referred to as Modification 4 of the second embodiment. Fig. 13A is a diagram showing an example of the sealing device 300 according to Modification 4 of the second embodiment. Fig. 13B is a cross-sectional view schematically showing a main part of an example of the vertical movement regulating structure used in the example of the sealing device 300 according to Modification 4 of the second embodiment.

[0151] (Up and down movement control structure) The vertical movement regulating structure is a structure that regulates the vertical movement of an object to be held by holding jig 10. The vertical movement regulating structure is not particularly limited, but in the example of Fig. 13A, the vertical movement regulating structure has a suction cup arranged on the lower side of holding jig 10. Below, we will continue to explain Modification 4 of the second embodiment, taking as an example a case where the vertical movement regulating structure has a suction cup.

[0152] As shown in FIG. 13A, the suction cup is attached to a support 320. The support 320 shown in FIG. 13 has a base 320A, a standing wall 320B rising upward from the base 320A, and an upper surface 320C formed from the upper end of the standing wall 320B to face the base 320A. The pressing body 310 is connected to the upper surface 320C. The holding jig 10 is connected to the standing wall 320B so as to be movable up and down. The suction cup 370 is attached to the base 320A with its suction surface 370A facing upward. In the state shown in FIG. 13A, the through-hole 16 of the holding jig 10 is located directly above the suction surface 370A. According to the sealing device 300 of the fourth modification of the second embodiment, when the container 200 is inserted into the through-hole 16, the outer surface of the bottom 220 of the container 200 is suctioned to the suction surface 370A. Due to the action of this suction force, it becomes easy to move the holding jig 10 upward so as to rub against the outer surface of the main body 210 of the container 200 while keeping the position of the container 200 fixed, regardless of the weight of the container 200.

[0153] (Decompression control structure) The suction cup 370 may be provided with a pressure reduction control structure. The pressure reduction control structure includes an elongated hole 371 that connects the suction surface 370A of the suction cup 370 to the outside, and a valve 372 that is provided midway through the elongated hole 371 and controls the ventilation state of the elongated hole 371. The elongated hole 371 is connected from the center of the suction surface 370A to the base portion 320A. When the container 200 is placed on the suction surface 370A with the valve 372 blocking ventilation of the elongated hole 371 (with the valve 372 closed), the suction cup 370 fixes the container 200. When the valve 372 is opened, the fixation between the container 200 and the suction cup 370 is released. According to the sealing device 300 of the fourth modification of the second embodiment, the fixed state of the container 200 can be controlled. Note that the fixation between the suction cup 370 and the container 200 is not limited to being released only when the valve 372 is opened. The adhesiveness of the suction cup 370 itself may be adjusted according to the physical properties such as the softness of the suction cup 370, thereby enabling the fixed state between the suction cup 370 and the container 200 to be released. For example, when the holding jig 10 rubs against the outer peripheral surface of the main body 210 of the container 200, an adhesive force acts to fix the vertical position of the container 200, and when the holding jig 10 comes into contact with the flange 240 of the container 200, the adhesive force of the suction cup 370 acts to pull up the container 200 by the holding jig 10, and the adhesive force of the suction cup 370 is weaker than the pulling force, so that the adhesive force between the container 200 and the suction cup 370 may be released.

[0154] (Variation 5) In the first modification of the second embodiment, a vertical movement structure is provided that enables the pressing body 310 to be displaced in the vertical direction. An example has been given in which electricity is used as the power source for the vertical movement structure. In the first modification of the second embodiment, the power source for the vertical movement structure is not limited to electricity. As shown in FIG. 16 , the vertical movement structure 392 may be configured to be driven by a physical force other than electricity. This embodiment is referred to as the fifth modification of the second embodiment. FIG. 16 is a side view showing an example of a sealing device according to the fifth modification of the second embodiment. Note that, as in FIG. 10 , for the sake of convenience, the displacement element 14, the base plate 12, and the like are omitted in FIG. 16 . The same applies to FIGS. 17 and 18 .

[0155] The sealing device 300 has a support 320 that supports a pressing body 310 and a holding jig 10. The support 320 shown in FIG. 16 has a base portion 320A and a standing wall portion 320B that rises upward from the base portion 320A. The same applies to FIGS. 17, 18, 23 to 27. In the example of FIG. 16, the support 320 does not include a vertical movement mechanism that moves the holding jig 10 up and down. The holding jig 10 is connected to the support 320 via a connecting member 330. Therefore, the holding jig 10 does not generally move in the vertical direction but is fixed while connected to the support 320 via the connecting member 330. However, this is not limited to the case where the holding jig 10 does not move up and down. Even if the sealing device 300 is a so-called manual sealing device, the holding jig 10 may move up and down. In addition to the fifth modification of the second embodiment, when the holding jig 10 is moved up and down in the sealing device 300, the power source of the holding jig 10 may be either a physical force other than electricity or electricity, as in the case of the pressing body 310. In the example of Fig. 16, the connecting member 330 is connected to the standing wall portion 320B of the support body 320, but this is just one example, and the connecting member 330 may be connected to the base portion 320A of the support body as shown in Figs. 23 to 27, etc.

[0156] (Power source for vertical movement structure) 16, the power source of the up-down movement structure 392 is a non-electric physical force, and an example of the physical force is human power such as the force from the user's hand. In this case, the sealing device 300 is a so-called manual sealing device.

[0157] (Vertical movement structure) The up-and-down movement structure 392 includes a lever 390 and a movement control structure 391. The movement control structure 391 is connected to the lever 390 and the pressing body 310 and is configured to move the pressing body 310 in the direction of arrow F in response to movement of the lever 390 in the direction of arrow Q. The movement control structure 391 can be configured using a combination of various gears. The lever 390 is configured to be capable of rotation in the direction Q around a fulcrum 390A as a rotation axis. An example of the movement control structure 391 is a mechanism (gear structure) including a gear 393 and a rack 394 meshing with the gear 393, as shown in FIGS. 28A and 28B. FIGS. 28A and 28B show essential parts of one embodiment of the movement control structure 391. The gear 393 is connected to a support shaft 389, which serves as the rotation axis of the gear 393, and the support shaft 389 is connected to a fulcrum 390A of the lever 390. The rack 394 is connected to the pressing body 310. In the examples of FIGS. 28A and 28B, the rack 394 functions as the support member 385. However, this does not prohibit the support member 385 supporting the pressing body 310 and the rack 394 from being different members. In the example of FIG. 16, the pressing body 310 is connected to the side of the rack 394 as shown in FIG. 28B. However, this is just one example, and the pressing body 310 may be connected to the pressing body 310 at the lower end of the rack 394 as shown in FIG. 28A. In the pressing body 310 described later with reference to FIGS. 23 to 27, the rack 394 is connected to the pressing body 310 at the lower end of the rack 394. In addition, as shown in FIG. 28B, the rack 394 and the pressing body 310 may be directly connected (jointed), or as shown in FIG. 28A, the rack 394 and the pressing body 310 may be connected via a connecting member 388. The material of connecting member 388 may be the same as that of connecting member 330 described above. For ease of explanation, lever 390 is shown by a dashed line in Figures 28A and 28B. When lever 390 is rotated in the Q direction, gear 393 rotates in the QG direction, and rack 394 is displaced in the F direction. For example, in the example of Figure 28, when gear 393 rotates in the -QG direction, rack 394 moves in the -F direction, and pressing body 310 is displaced in the -F direction. When the rotation direction of gear 393 becomes the +QC direction, pressing body 310 is displaced in the +F direction.

[0158] It is preferable that the up-down movement mechanism 392 is configured to use an elastic material such as a spring to set the state in which the lever has moved in the +Q direction as the non-pressed state. The non-pressed state refers to a state in which the pressing body 310 is not pressing the object to be held. This makes it easy for the user to press down on the lever 390 (by displacing it in the -Q direction), causing the pressing body 310 to move downward (in the -F direction) in conjunction with the lever 390, and for the user to release the lever 390 to displace in the +Q direction, causing the pressing body 310 to move upward (in the +F direction) in conjunction with the lever 390.

[0159] (Sealing function) The sealing device 300 can achieve the sealing function as follows: The sealing function will be described below with reference to FIG. 17, taking as an example the case where the object to be held M is the container 200, as in FIG.

[0160] The main body 210 of the container 200 is placed in the through-hole 16 of the holding jig 10. The container 200 is pushed in until it reaches a position where the holding jig 10 contacts the flange 240 of the container 200 (position N2 in FIG. 11). At this time, if the size of the through-hole 16 is smaller than the size of the container 200 (the size of the cross section of the outer circumferential surface), the size of the through-hole 16 is widened according to the size of the container 200.

[0161] In the container 200 , a lid 290 is placed on the container 200 so as to cover the opening 260 (and the space 230 ) on the top surface of the main body 210 and the flange portion 240 .

[0162] In the sealing device, with the lid 290 placed on the container 200 so as to cover the upper opening 260 and flange 240 of the main body 210, the container 200 and the lid 290 are interposed between the pressing body 310 and the holding jig 10, and the lever 390 is lowered downward (in the -Q direction), which displaces the pressing body 310 in the -F direction. Then, the lid 290 and the container 200 are pressed against each other at the position of the flange 240 of the container 200 between the pressing body 310 and the holding jig 10. At this time, the lid and the container 200 are heated as necessary. In this way, the lid 290 and the container 200 are joined together. The lever 390 is raised in the +Q direction, which displaces the pressing body 310 upward (in the +F direction). Then, the container 200 with the joined lid 290 is removed.

[0163] In the fifth modification shown in Fig. 16, the pressing body is arranged laterally relative to the vertical movement structure (on the +X direction side in Fig. 16), but the arrangement of the vertical movement structure and pressing body is not limited to this. As shown in Fig. 20, the pressing body may be arranged below the vertical movement structure.

[0164] (Variation 6) In Modification 5 of the second embodiment, as shown in Fig. 23, the pressing body 310 may be configured to be movable not only in the up-down direction (the direction of arrow F in Fig. 23) but also in the front-rear direction (the direction of arrow J in Fig. 23). Such an embodiment of Modification 5 is referred to as Modification 6 of the second embodiment. Fig. 23 is a diagram showing an example of a sealing device according to Modification 6 of the second embodiment.

[0165] (Back and forth movement structure) The sealing device 300 according to the sixth modification of the second embodiment includes a forward / backward movement structure 400. In the example of Fig. 23, the forward / backward movement structure 400 is configured by a combination of a slide member 401 and a rail 402 as shown in Fig. 24. Fig. 24 is a front view of the sealing device 300 shown in the example of Fig. 23. The slide member 401 is attached to a side surface 398B of a housing 398 that forms an exterior part of a movement control structure 391 of a vertical movement structure 392, and fits into the rail 402.

[0166] (Displacement of pressing body) In the sealing device 300 shown in the example of FIG. 23, the pressing body 310 can be displaced (moved) in the front-to-rear direction (direction of arrow J) and the up-down direction (direction of arrow F) as shown in FIG. 25. FIG. 25 is a diagram for explaining the displacement of the pressing body 310 in the sealing device 300 shown in FIG. 23. In FIG. 25, the state in which the vertical movement structure 392 is moved in the +J direction (the state in which the pressing body 310 is positioned directly above the through-hole 16) (front-side arrangement state) is shown by a solid line, and the state in which the vertical movement structure 392 is moved in the -J direction (rear-side arrangement state) is shown by a dashed line. The state in which the pressing body 310 is moved in the +F direction is also shown by a dashed line.

[0167] As shown in FIG. 25, when a user grips lever 390 and applies force in the direction of arrow J, slide member 401 is displaced in the direction of arrow J along rail 402. Accordingly, up-down movement structure 392 moves from a position on the -J side to the +J direction along the direction of arrow J. As up-down movement structure 392 moves, pressing body 310 also moves. At this time, pressing body 310 can move to a position directly above through-hole 16 of holding jig 10. In the example of FIG. 23, this can be achieved by adjusting the length and position of rail 402.

[0168] 25, in the forward / backward direction moving structure 400, when the pressing body 310 reaches directly above the through-hole 16, the lever 390 is rotated in the direction of arrow Q, whereby the pressing body 310 moves in the -F direction. As a result, as described in the example of FIG. 11, the pressing body 310 can press the object to be held M held in the through-hole 16 (not shown in FIG. 25).

[0169] (effect) According to the sealing device 300 of the sixth modification of the second embodiment, the pressing body 310 is configured to be movable in the front-rear direction, and therefore, in the rearward disposed state, the pressing body 310 is not present directly above the through hole 16, making it easy to set the object to be held M, such as the container 200, in the through hole 16. In particular, it is possible to reduce the need to provide a structure for increasing the distance between the pressing body 310 and the through hole 16 in the vertical direction in order to set the object to be held M, such as the container 200, in the through hole 16. Therefore, according to the sealing device 300 of the sixth modification of the second embodiment, it is possible to reduce the size in the vertical direction.

[0170] Furthermore, since the pressing body 310 is configured to be movable in the forward and backward directions, when the user sets the object to be held M, such as the container 200, in the through hole 16 with his / her hand, the possibility of the user's hand coming into contact with the pressing body 310 can be effectively reduced.

[0171] (Alternative example 1 of variant example 6) In the example shown in Fig. 23, movement in the front-rear direction is movement along the slide member and rail, but this is just one example, and the configuration of the front-rear direction movement structure 400 is not particularly limited as long as it is a structure that can realize movement in the front-rear direction. For example, the front-rear direction movement structure 400 may be configured as shown in Fig. 26. Fig. 26 is a diagram showing another example (another example 1) of a sealing device according to Modification 6 of the second embodiment.

[0172] In the sealing device 300 shown in FIG. 26, the forward / backward movement structure 400 is configured by combining a rotating pillar 403 and a fixing member 404 that fixes the rotating pillar in a rotatable state. The rotating pillar 403 has its lower end fixed to a base 320A by a fixing member 404, and is configured to be rotatable around the fixing member 404 attached to the base 320A as an axis. The rotating pillar 403 has its upper end fixed to a side surface 398B of a housing 398 that forms the exterior of the movement control structure 391 by a fixing member 404. The rotating pillar 403 is configured to be rotatable around the fixing member 404 attached to the side surface 398B as an axis. Note that in the example of FIG. 26, a plurality of rotating pillars 403 are provided, and are positioned so that the rotating pillars 403 can rotate simultaneously.

[0173] In the example of sealing device 300 shown in FIG. 26, as rotating columnar body 403 rotates, vertical movement structure 392 is displaced in the direction of arrow J. At this time, vertical movement structure 392 may also be displaced in the direction of arrow F. In the example of FIG. 26, vertical movement structure 392 displaces in the direction of arrow +F from a position on the -J direction side as a starting point to a predetermined position while displacing in the direction of arrow J toward a position on the +J direction side, and then displaces in the direction of arrow -F as it further displaces in the direction of arrow J toward a position on the +J direction side. Pressing body 310 also moves in accordance with the movement of vertical movement structure 392. Then, in front-rear direction moving structure 400, when pressing body 310 reaches directly above through-hole 16, lever 390 is rotated in the direction of arrow Q, whereby pressing body 310 moves in the -F direction.

[0174] (Alternative example 2 of variant example 6) In a sealing device 300 according to Alternative Example 1 of Modification Example 6 of the second embodiment, as shown in FIG. 27 , the forward / backward direction moving structure 400 may be configured such that, when the pressing body 310 reaches directly above the through-hole 16 as the up / down movement structure 392 and the pressing body 310 move in the forward / backward direction (the direction of arrow J), the pressing surface 310A of the pressing body 310 is positioned below the starting position (position S1 in FIG. 27 ). FIG. 27 is a diagram showing another example (Alternative Example 2) of the sealing device according to Modification Example 6 of the second embodiment. Note that the starting position refers to the position of the pressing surface 310A of the pressing body 310 when the up / down movement structure 392 is positioned in the −J direction (referred to as a rearward positioning state). In addition, in the example of FIG. 27 , the state in which the pressing body 310 reaches directly above the through-hole 16 is a state in which the up / down movement structure 392 and the pressing body 310 have been moved in the +J direction by the forward / backward direction moving structure 400, and this state is referred to as a frontward positioning state. The position of the pressing surface 310A in the front disposition state is shown as position S2 in FIG.

[0175] The forward / backward moving structure 400 shown in the sealing device 300 of Alternative Example 2 can be configured to have a rotating pillar 403 and a fixing member 404, similar to Alternative Example 1. In the example of Fig. 27, a restricting member 405 is provided to restrict the rotation range of the rotating pillar 403.

[0176] In the example of the sealing device 300 shown in FIG. 27, as the rotating columnar body 403 rotates, the vertical movement structure 392 is displaced in the direction of arrow J. At this time, the vertical movement structure 392 also displaces in the -F direction. In the example of FIG. 26, as the rearward disposition state transitions to the forward disposition state, the vertical movement structure 392 displaces in the direction of arrow -F while moving in the direction of arrow J. Accordingly, the pressing body 310 can also displace in the direction of arrow -F while moving in the direction of arrow J. In the sealing device 300 according to the second modified example, the forward / backward direction movement structure 400 is structured to simultaneously move the pressing body 310 in the forward / backward direction and the up / down direction. When the pressing body 310 reaches directly above the through-hole 16 in the forward / backward direction movement structure 400, by rotating the lever 390 in the direction of arrow Q, the pressing body 310 moves in the -F direction.

[0177] 28A, it is preferable that a downward force be applied to the lever 390 when the vertical movement structure 392 is configured by combining a gear 393 and a rack 394 as shown in FIG. 28A. This allows the position of the pressing body 310 to be lowered (closer to the holding jig 10) in the front-side position. In this case, when the pressing body 310 reaches directly above the through-hole 16 in the front-rear direction movement structure 400, the pressing surface 310A of the pressing body 310 may be positioned near the upper surface of the holding jig 10.

[0178] The forward / backward moving structure 400 shown in Modification 6 is not limited to being mounted on the sealing device 300 according to Modification 5. For example, the forward / backward moving structure may be applied to the second embodiment described above with reference to FIG. 10 and the like, or Modifications 1 to 4 of the second embodiment.

[0179] (elastic member) As shown in the examples of FIGS. 23 to 27, the vertical movement structure 392 is preferably configured such that, as shown in the example of FIG. 23, a state in which the lever moves in the +Q direction is defined as the non-pressing state using an elastic member 386 such as a spring. The non-pressing state refers to a state in which the pressing body 310 is not pressing the object to be held. As a result, when a user presses down on the lever 390 (displacing it in the -Q direction), the pressing body 310 moves downward (in the -F direction) accordingly, and when the user releases the lever 390, the lever 390 is displaced in the +Q direction, which facilitates the pressing body 310 moving upward (in the +F direction) accordingly. Note that in the example of FIG. 23, the upper end side of the support member 385 to which the pressing body 310 is joined extends above the upper surface 398A of the housing 398 of the vertical movement structure 392, and a stopper 387 is provided at the upper end side of the support member 385. Elastic member 386 is disposed between stopper 387 and housing 398. In FIG. 23, a coil spring is used as elastic member 386, and is disposed so as to surround the outer circumferential surface of support member 385. In the example of FIG. 23, when a user presses down lever 390 to compress elastic member 386, pressing body 310 is displaced in the -F direction. When a user releases lever 390, a restoring force of elastic member 386 acts, and pressing body 310 is displaced in the +F direction. However, what has been described here is merely an example, and the arrangement, material, etc. of elastic member 386 are not limited thereto.

[0180] (Variation 7) The sealing device 300 according to the second embodiment is not limited to the case where the pressing body 310 and the holding jig 10 are fixed to the support body 320. As shown in FIGS. 19A and 19B, the sealing device 300 may be configured by combining a pressing device including the pressing body 310 and a holding device including a holding jig. This embodiment is referred to as Modification 6 of the second embodiment. FIG. 19A is a diagram showing an example of a pressing device in the sealing device according to Modification 6 of the second embodiment. FIG. 19B is a diagram showing an example of a holding device in the sealing device according to Modification 6 of the second embodiment. Note that for convenience of explanation, the displacement element 14, the base plate 12, etc. are omitted in FIG. 19B.

[0181] (Pressing device) In the example of FIG. 19A, the pressing device includes a pressing body 310, a support handle 380 to which the pressing body 310 is attached, and a gripping body 381 connected to the support handle 380.

[0182] (holding device) 19B, the holding device includes a holding jig 10, a fixing base 382, ​​and a connecting member 330. The holding jig 10 is connected to the connecting member 330, and the connecting member 330 is fixed to the fixing base 382. As a result, the holding jig 10 is fixed to the fixing base 382.

[0183] (Variation 8) As shown in Fig. 18, the sealing device 300 according to the second embodiment may have a fluororesin sheet 395 provided between the pressing surface 310A of the pressing body 310 and the holding jig. This embodiment is referred to as Modification 7 of the second embodiment. Fig. 18 is a diagram showing an example of a sealing device according to Modification 7 of the second embodiment.

[0184] (Fluororesin sheet) The fluororesin sheet 395 refers to a sheet formed from a resin material containing fluorine atoms. Examples of the resin material containing fluorine atoms include polytetrafluoroethylene (PTFE) and perfluoroalkoxyalkane (PFA).

[0185] Fluororesin sheet 374 is preferably arranged to cover the entire surface of pressing surface 310A of pressing body 310. In this case, dust and the like are less likely to adhere to pressing surface 310A of pressing body 310. Furthermore, because dust and the like are also less likely to adhere to fluororesin sheet 374, the risk of dust being transferred to object to be held M is reduced. Furthermore, gap 396 is preferably formed between pressing surface 310A and fluororesin sheet 395. In this case, if pressing body 310 is provided with a heating mechanism, even if dust does adhere to fluororesin sheet 395, the dust will combust and the combusted matter of the dust will adhere to fluororesin sheet 395, reducing the risk of the combusted matter being transferred to object to be held M.

[0186] (sheet feeding mechanism) In the sealing device 300 according to the seventh modification of the second embodiment, as shown in the example of FIG. 18, a sheet feeding mechanism that feeds out the fluororesin sheet 374 is preferably provided. In the example of FIG. 18, the sheet feeding mechanism has a first roller 397A and a second roller 397B. An unused fluororesin sheet 374 is wound around the first roller, and the fluororesin sheet 374 is fed in the direction of the arrow U as needed. The second roller is a roller onto which a used fluororesin sheet 374 is wound. The unused fluororesin sheet 374 refers to a sheet that has never been placed on the front side of the pressing surface 310A of the pressing body 310. The used fluororesin sheet 374 refers to a sheet that has been placed on the front side of the pressing surface 310A of the pressing body 310.

[0187] By providing the sheet feeding mechanism, the fluororesin sheet 374 arranged on the front side of the pressing surface 310A can be an unused fluororesin sheet 374 as needed.

[0188] 18 illustrates a case where a fluororesin sheet 395 is provided for the sealing device 300 shown in FIG. 10, but this is just one example. For example, the fluororesin sheet 395 may be provided for Modification 5 or Modification 6 of the second embodiment as shown in FIG.

[0189] (Variation 9) In the sealing device 300 according to the second embodiment, a cover body 406 that covers the periphery of the pressing body 310 may be provided as shown in Fig. 29. This embodiment is referred to as Modification 9 of the second embodiment. Fig. 29 is a front view showing one example of a sealing device according to Modification 9 of the second embodiment.

[0190] 29 shows a case where a cover body 406 is provided in the sealing device 300 according to Alternative Example 1 of Modification Example 6 of the second embodiment, but this is just one example. The cover body 406 is provided so as to cover at least the portion of the pressing body 310 that is visible to the user when the cover body 406 is not provided. In the example of FIG. 30, the cover body 406 is arranged so as to conceal at least the front side of the sealing device 300 in the pressing body 310. The material of the cover body 406 is not particularly limited, but is preferably a rigid material such as metal.

[0191] (Variation 10) In the sealing device 300 according to the second embodiment, as shown in FIGS. 33 to 35 , the holding jig 10 has a positioning structure 35, and the positioning structure 35 has the structure shown in Alternative Example 3 of Modification 8 of the first embodiment. In the case where the holding jig 10 further has a first extension portion 50 (when the positioning structure 35 has the structure exemplified in FIGS. 32A and 32B ), a protruding member 410 that contacts the first extension portion 50 of the positioning structure 35 may be provided. FIGS. 33 to 35 are diagrams for explaining an example of the sealing device 300 when the positioning structure 35 has the structure shown in Alternative Example 3 of Modification 8 of the first embodiment (the structure exemplified in FIGS. 32A and 32B ). FIG. 33 is a side view schematically illustrating the sealing device 300 according to Modification 10 of the second embodiment, as viewed from the side. For ease of explanation, the side wall portion 320D on the +X direction side and the positioning structure 35 are omitted in FIG. 33 . 33, the holding jig 10 is shown by a solid line when it is moved to the rear position, and is shown by a dashed line when it is moved to the front position. Fig. 34 is a front view schematically showing the sealing device 300 according to Modification 10 of the second embodiment as viewed from the side. Fig. 35 is a partial plan view schematically showing the state in which the holding jig 10 moves along the guide rail 412 when the viewing direction is from the top to the bottom of the sealing device 300 according to Modification 10 of the second embodiment.

[0192] In the sealing device 300 shown in the example of FIGS. 33 to 35, the pressing body 310 is configured to be movable in the vertical direction (direction of arrow F), as described in Modification 1 of the second embodiment. The sealing device 300 has a support 320. The support 320 shown in FIG. 30 has a base portion 320A and a standing wall portion 320B rising upward from the base portion 320A. Note that reference numeral 411 shown in FIGS. 33 and 34 denotes a support member that supports the pressing body 310. The sealing device 300 is provided with a vertical movement mechanism (not shown), for example, as described in Modification 1 of the second embodiment, and the vertical movement of the pressing body 310 can be realized by connecting the support member 411 to the vertical movement structure.

[0193] In the example of FIG. 31, two side walls 320D, 320D extend forward (in the +Y direction) from the upright wall 320B, and the side walls 320D, 320D face each other. A guide rail 412 is provided on the inner surface of the side wall 320D (the surfaces of the side walls 320D, 320D that face each other). The guide rail 412 extends in the front-rear direction. In the example of FIG. 31, a holding jig 10 is disposed on the guide rail 412. The holding jig 10 is configured to be movable in the front-rear direction (the Y direction in the examples of FIGS. 33 and 35) along the extension direction of the guide rail 412. A protruding member 410 is provided on the side wall 320D above the guide rail 412. The protruding member 410 is positioned slightly above the top surface of the holding jig 10 in the up-down direction. Furthermore, the protruding length of the protruding member 410 (the distance it extends inward from the side wall portion 310D (the length along the X-axis direction in FIG. 34)) is set to a length that allows it to come into contact with the first extending portion 50 provided on the gear 46 of the positioning structure 35. The position of the protruding member 410 in the front-to-rear direction is set to a position that causes contact between the protruding member 410 and the first extending portion 50 when the holding jig 10 moves from the front position to the rear position (when the holding jig 10 moves from the +Y direction side to the -Y direction side) as shown in FIG.

[0194] By providing the protruding member 410 in this manner, when the holding jig 10 is pulled forward, as shown in FIG. 35, the contact between the protruding member 410 and the first extending portion 50 is released, and the tip 44A (and the pin 45) of the arm 44 of the rotating member 43 can rotate in a direction approaching the center CT. That is, in the example of FIG. 35, the rotating members 43B and 43D can rotate in the +K4 direction, and the rotating members 43A and 43C can rotate in the -K4 direction. Then, when the first and second objects to be held are set in the holding jig 10 and the holding jig 10 is moved rearward, the protruding member 410 comes into contact with the first extending portion 50, and the tip 44A (and the pin 45) of the arm 44 of the rotating member 43 rotates in a direction away from the center CT. That is, in the example of FIG. 35, the rotating members 43B and 43D rotate in the -K4 direction, and the rotating members 43A and 43C rotate in the +K4 direction. In this case, even if the second object to be held is positioned slightly above the first object to be held when the first and second objects to be held are set in the holding jig 10, it is possible to more reliably bring the second object into contact with the first object to be held. Furthermore, when the pressing body 310 moves downward while the holding jig 10 is moved rearward, it is also possible to prevent the rotating member 43 from coming into contact with the pressing body 310.

[0195] In the sealing device 300 shown in the examples of FIGS. 33 to 35 , the movement of the pressing body 310 in the front-rear direction is restricted, and the holding jig 10 moves in the front-rear direction, but this is just one example. In the sealing device 300 of modified example 10 of the second embodiment, as long as the first extension portion 50 and the protruding member 410 are provided, both the pressing body 310 and the holding jig 10 may be movable in the front-rear direction, or the pressing body 310 may be configured to be movable in the front-rear direction, and the movement of the holding jig 10 in the front-rear direction may be restricted. In modified example 10 of the second embodiment, when the pressing body 310 moves in the front-rear direction, it is preferable that the protruding member 410 is configured to move in conjunction with the movement of the pressing body 310. This can be achieved, for example, by providing the protruding member 410 so as to hang down from the circumferential surface of the pressing body 310. When configured in this manner, the protruding member 410 moves in accordance with the movement of the pressing body 310, and when it comes into contact with the first extension portion 50 of the holding jig 10, the tip portion 44A (and pin 45) of the arm 44 of the rotating member 43 rotates in a direction away from the center CT, as described above.

[0196] Next, a third embodiment will be described. The third embodiment is a method for manufacturing a container with a lid using the holding jig 10 described in the first embodiment.

[0197] [3 Third embodiment] The method for manufacturing a container with a lid using the holding jig 10 includes the following sealing method.

[0198] (Sealing method) In the method for manufacturing a container with a lid, the container 200 is set in the sealing device 300 (sealing device 300 provided with a holding jig 10) shown in the second embodiment. Before or simultaneously with the application of the sealing process, a lid is interposed above the container between the pressing body and the holding jig.

[0199] (Sealing process) In the sealing process, the container and lid are interposed between the pressing body and the holding jig, and the lid is joined to the container at the position of the flange of the container. This can be achieved by the sealing device 300 performing the sealing function as described above.

[0200] The holding jig, sealing device, and sealing method according to the present invention have been described in detail above, but the above descriptions are merely examples of the holding jig, sealing device, and sealing method according to the present invention, and the present invention is not limited to these. Therefore, the present invention includes appropriate modifications within the scope of the present invention. Furthermore, the various aspects described above can be applied and used separately, or the configurations of each aspect can be used in appropriate combination.

[0201] The present invention encompasses the following technical ideas. (A1) A holding jig for a sealing device, comprising: a through hole formed in the vertical direction for inserting an object to be held; a holding body formed to bring the object to be held into contact with the upper edge of the through hole; the holding body having a plurality of displacers forming at least a part of the through hole; and in at least some of the displacers, as the displacers are displaced in a displacement direction determined for the displacers, the exposed area of ​​each of the displacers exposed on the circumferential surface of the through hole fluctuates, and when the displacers move so that the exposed area increases, stress is applied to the displacers so that the exposed area decreases. (A2) The holding jig for a sealing device according to (A1) above, wherein the adjacent displacers slide relative to each other along the displacement direction determined for each of the displacers. (A3) The holding jig for a sealing device according to (A1) or (A2) above, wherein the through-hole is formed by a plurality of the displacers. (A4) The holding jig for a sealing device according to any one of (A1) to (A3) above, wherein the plurality of displacers are arranged in a ring shape. (A5) A holding jig for a sealing device described in any one of (A1) to (A4) above, wherein the holding body is provided with a regulating structure that regulates the displacement direction of at least some of the displacers, the regulating structure has a guide portion provided corresponding to each of the displacers that guides the displacers in a predetermined direction, and the displacement direction of the displacers is a direction along the guide portion corresponding to the displacer. (A6) A holding jig for a sealing device described in (A5) above, in which when one of the adjacent displacers moves along the guide portion corresponding to the one displacer, a pressing force is applied to the other displacer, and the other displacer moves along the guide portion corresponding to the other displacer based on the pressing force. (A7) A holding jig for a sealing device described in any one of (A1) to (A6) above, wherein the holding body has a regulating wall portion that regulates the displacement distance of at least one of the displacers, and the regulating wall portion comes into contact with the displacer when the displacer is displaced to a predetermined position. (A8) The holding jig for a sealing device described in (A7) above, wherein the holding body has a first groove portion in the regulating wall portion, the displacer that contacts the regulating wall portion has a second groove portion formed at a position corresponding to the first groove portion, and a regulating rod that is common to the first groove portion and the second groove portion and is embedded in the first groove portion and the second groove portion is provided. (A9) The holding jig for a sealing device according to any one of (A1) to (A8) above, wherein adjacent displacers contact each other at their side surfaces. (A10) The holding jig for a sealing device according to any one of (A1) to (A9) above, wherein adjacent displacement elements are prevented from overlapping with each other in the up-down direction. (A11) The holding jig for a sealing device according to any one of (A1) to (A10) above, wherein the positions of the upper surfaces of the adjacent displacers are aligned at the upper edge of the through hole. (A12) A holding jig for a sealing device according to any one of (A1) to (A11) above, further comprising a base plate, wherein the displacer is arranged on an upper surface of the base plate and the displacer slides on the upper surface of the base plate. (A13) The holding jig for a sealing device according to any one of (A1) to (A12) above, wherein an extension portion extending along the circumferential surface portion of the through hole is formed on the lower surface of the displacer. (A14) A holding jig for a sealing device described in any one of (A1) to (A13) above, wherein at least the portion of the displacer corresponding to the exposed region forms an inclined surface that slopes downward toward the inside of the through hole as it extends downward from the upper edge of the through hole. (A15) The holding jig for a sealing device according to any one of (A1) to (A14) above, further comprising a protective plate, the protective plate covering at least a part of the displacement element. (A16) A holding jig for a sealing device described in (A15) above, in which a fixing member for fixing the position of the protective plate is removably attached to the protective plate, and when the fixing member is removed, the protective plate is configured to be displaceable in a planar direction normal to the thickness direction of the protective plate. (A17) A holding jig for a sealing device described in any one of (A1) to (A16) above, wherein the holding object has a first holding object that contacts the through hole and a second holding object that is mounted on the first holding object, and when the surface direction of a plane normal to the up-down direction is defined as the planar direction, the upper surface side of the holding body is provided with a positioning structure that determines at least the position of the second holding object in the planar direction relative to the first holding object. (A18) The positioning structure includes a plurality of pins erected on the upper surface side of the holder, the plurality of pins determining the position of the second object to be held in the planar direction, and each of the pins being configured to be displaceable in the vertical direction, in the holding jig for a sealing device described in (A17) above. (A19) A holding jig for a sealing device described in any one of (A1) to (A18) above, wherein the object to be held comprises at least a container having a main body portion and a flange portion extending outward from the upper end of the main body portion, and the flange portion contacts the upper edge portion of the through hole. (A20) A holding jig for a sealing device described in any one of (A1) to (A19) above, wherein the holding body includes an elastic member that biases at least one of the displacers, and the elastic member applies stress to the displacer so that the exposed area is in a position where it is smaller when the displacer moves so that the exposed area is larger. (A21) The holding jig for a sealing device according to any one of (A1) to (A20) above, which has an outer periphery and is provided with a covering material having cushioning properties so as to surround the outer periphery. (A22) The holding jig for a sealing device according to any one of (A1) to (A21) above, wherein a displacement guide structure for regulating the displacement direction of the displacer is provided on the lower surface side of the displacer. (A23) The holding jig for a sealing device according to any one of (A1) to (A22) above, wherein a groove is formed on the upper surface of the displacer. (A24) The holding jig for a sealing device according to (A23) above, wherein the groove on the upper surface of the displacer extends along the displacement direction of the displacer. (A25) The holding jig for a sealing device according to any one of (A1) to (A24) above, wherein a groove is formed on at least a part of the side surface of the displacer, excluding the surface forming the through hole. (A26) The holding jig for a sealing device according to any one of (A1) to (A25) above, wherein a step is formed on the upper surface of the displacer. (A27) A sealing device comprising: a holding jig for a sealing device according to any one of (A1) to (A26) above; and a pressing body that applies a pressing force to the holding object from above the holding object, wherein when the holding object is placed on the holding jig for the sealing device and the pressing force is applied to the holding object, at least one of the pressing body and the holding jig for the sealing device moves from an initial position where the pressing body and the holding jig for the sealing device are separated by a predetermined distance to a position where the holding object is pressed, the pressing body is present above the holding object, and the pressing force is applied to the holding object from above the holding object. (A28) The sealing device according to (A27) above, wherein the sealing device holding jig moves toward the pressing body. (A29) The sealing device according to (A27) or (A28) above, wherein the pressing body moves toward the sealing device holding jig. (A30) The sealing device according to any one of (A27) to (A29) above, wherein the pressing body has a pressing surface, and the pressing surface is an uneven surface. (A31) The sealing device according to any one of (A27) to (A30) above, which is provided with a heating mechanism capable of heating the pressing body. (A32) The sealing device according to any one of (A27) to (A31) above, wherein a fluororesin sheet is provided between the pressing body and the sealing device holding jig. (A33) A sealing device described in any one of (A27) to (A32) above, wherein the object to be held comprises at least a container having a main body portion with an opening formed on the upper side and a flange portion extending outward from the upper end of the main body portion. (A34) A sealing device described in (A33) above, in which a lid is placed on the container so as to cover the opening on the upper side of the main body and the flange portion, and the container and the lid are interposed between the pressing body and the sealing device holding jig, and the lid is joined to the container at the position of the flange portion of the container. (A35) A sealing method using the sealing device described in (A33) above, in which the container and the lid are interposed between the pressing body and the sealing device holding jig, and the lid is joined to the container at the position of the flange portion of the container. (A36) A holding jig for a sealing device described in any one of (A1) to (A26) above, wherein the holding body is expandable and has an elastic member that biases at least one of the displacers, and when the displacer is moved so that the exposed area becomes larger, a stress corresponding to the expansion and contraction of the elastic member is applied to the displacer so that the exposed area becomes smaller.

[0202] The present invention can also be construed as including the following technical ideas. (B1) A holding jig for a sealing device, comprising: a through hole formed in the vertical direction for inserting an object to be held; a holding body formed to bring the object to be held into contact with the upper edge of the through hole; the holding body comprising a plurality of displacers forming at least a part of the through hole; and an elastic member for biasing at least one of the displacers; in at least some of the displacers, as the displacer is displaced in a displacement direction determined for the displacer, the exposed area of ​​each of the displacers exposed on the circumferential surface of the through hole changes; and the elastic member biases the displacer to a position where the exposed area is smaller. (B2) The holding jig for a sealing device according to (B1) above, wherein the adjacent displacers slide relative to each other along the displacement direction determined for each of the displacers. (B3) The holding jig for a sealing device according to (B1) or (B2) above, wherein the through-hole is formed by a plurality of the displacers. (B4) The holding jig for a sealing device according to any one of (B1) to (B3) above, wherein the plurality of displacers are arranged in a ring shape. (B5) A holding jig for a sealing device described in any one of (B1) to (B4) above, wherein the holding body is provided with a regulating structure that regulates the displacement direction of at least some of the displacers, the regulating structure has a guide portion provided corresponding to each of the displacers that guides the displacers in a predetermined direction, and the displacement direction of the displacers is a direction along the guide portion corresponding to the displacer. (B6) A holding jig for a sealing device according to (B5) above, wherein when one of the adjacent displacers moves along the guide portion corresponding to the one displacer, a pressing force is applied to the other displacer, and the other displacer moves along the guide portion corresponding to the other displacer based on the pressing force. (B7) The holding jig for a sealing device described in any one of (B1) to (B6) above, wherein the holding body has a regulating wall portion that regulates the displacement distance of at least one of the displacers, and the regulating wall portion comes into contact with the displacer when the displacer is displaced to a predetermined position. (B8) The holding jig for a sealing device described in (B7) above, wherein the holding body has a first groove portion in the regulating wall portion, the displacer that contacts the regulating wall portion has a second groove portion formed at a position corresponding to the first groove portion, and a regulating rod that is common to the first groove portion and the second groove portion and is embedded in the first groove portion and the second groove portion is provided. (B9) The holding jig for a sealing device according to any one of (B1) to (B8) above, wherein adjacent displacement elements are in contact with each other at their side surfaces. (B10) The holding jig for a sealing device according to any one of (B1) to (B9) above, wherein adjacent displacement elements are prevented from overlapping with each other in the vertical direction. (B11) The holding jig for a sealing device according to any one of (B1) to (B10) above, wherein the positions of the upper surfaces of the adjacent displacers are aligned at the upper edge of the through hole. (B12) A holding jig for a sealing device according to any one of (B1) to (B11) above, further comprising a base plate, wherein the displacer is arranged on an upper surface of the base plate, and the displacer slides on the upper surface of the base plate. (B13) The holding jig for a sealing device according to any one of (B1) to (B12) above, wherein an extension portion extending along the peripheral surface portion of the through hole is formed on the lower surface of the displacement element. (B14) A holding jig for a sealing device described in any one of (B1) to (B13) above, wherein at least the portion of the displacer corresponding to the exposed region forms an inclined surface that slopes downward toward the inside of the through hole as it extends downward from the upper edge of the through hole. (B15) The holding jig for a sealing device according to any one of (B1) to (B14) above, further comprising a protective plate, the protective plate covering at least a part of the displacement element. (B16) A holding jig for a sealing device described in (B15) above, in which a fixing member for fixing the position of the protective plate is removably attached to the protective plate, and in which, when the fixing member is removed, the protective plate is configured to be displaceable in a plane direction normal to the thickness direction of the protective plate. (B17) A holding jig for a sealing device described in any one of (B1) to (B16) above, wherein the holding object has a first holding object that contacts the through hole and a second holding object that is mounted on the first holding object, and when the surface direction of a plane having the vertical direction as the normal is defined as the planar direction, the upper surface side of the holding body is provided with a positioning structure that determines at least the position of the second holding object in the planar direction relative to the first holding object. (B18) The positioning structure includes a plurality of pins erected on the upper surface side of the holder, the plurality of pins determining the position of the second held object in the planar direction, and each of the pins being configured to be displaceable in the vertical direction, in the holding jig for a sealing device described in (B17) above. (B19) A holding jig for a sealing device described in any one of (B1) to (B18) above, wherein the object to be held comprises at least a container having a main body portion and a flange portion extending outward from the upper end of the main body portion, and the flange portion contacts the upper edge portion of the through hole. (B20) A holding jig for a sealing device described in any one of (B1) to (B19) above, wherein the holding body is provided with an elastic member that biases at least one of the displacers, and the elastic member applies stress to the displacer so that the exposed area is in a position where it is smaller when the displacer has moved so that the exposed area is larger. (B21) The holding jig for a sealing device according to any one of (B1) to (B20) above, which has an outer periphery and is provided with a covering material having cushioning properties so as to surround the outer periphery. (B22) The holding jig for a sealing device according to any one of (B1) to (B21) above, wherein a displacement guide structure for regulating the displacement direction of the displacer is provided on the lower surface side of the displacer. (B23) The holding jig for a sealing device according to any one of (B1) to (B22) above, wherein a groove is formed on the upper surface of the displacer. (B24) The holding jig for a sealing device according to (B23) above, wherein the groove on the upper surface of the displacer extends along the displacement direction of the displacer. (B25) The holding jig for a sealing device according to any one of (B1) to (B24) above, wherein a groove is formed on at least a part of the side surface of the displacer, excluding the surface forming the through hole. (B26) The holding jig for a sealing device according to any one of (B1) to (B25) above, wherein a step is formed on the upper surface of the displacement element. (B27) A sealing device comprising: a holding jig for a sealing device according to any one of (B1) to (B26) above; and a pressing body that applies a pressing force to the holding object from above the holding object, wherein when the holding object is placed on the holding jig for the sealing device and the pressing force is applied to the holding object, at least one of the pressing body and the holding jig for the sealing device moves from an initial position where the pressing body and the holding jig for the sealing device are separated by a predetermined distance to a position where the holding object is pressed, the pressing body is present above the holding object, and the pressing force is applied to the holding object from above the holding object. (B28) The sealing device according to (B27) above, wherein the sealing device holding jig moves toward the pressing body. (B29) The sealing device according to (B27) or (B28) above, wherein the pressing body moves toward the sealing device holding jig. (B30) The sealing device according to any one of (B27) to (B29) above, wherein the pressing body has a pressing surface, and the pressing surface is an uneven surface. (B31) The sealing device according to any one of (B27) to (B30) above, which is provided with a heating mechanism capable of heating the pressing body. (B32) The sealing device according to any one of (B27) to (B31) above, wherein a fluororesin sheet is provided between the pressing body and the sealing device holding jig. (B33) A sealing device according to any one of (B27) to (B32) above, wherein the object to be held comprises at least a container having a main body portion with an opening formed on the upper side and a flange portion extending outward from the upper end of the main body portion. (B34) A sealing device as described in (B33) above, in which a lid is placed on the container so as to cover the opening on the upper side of the main body and the flange portion, and the container and the lid are interposed between the pressing body and the sealing device holding jig, and the lid is joined to the container at the position of the flange portion of the container. (B35) A sealing method using the sealing device described in (B33) above, in which the container and the lid are interposed between the pressing body and the sealing device holding jig, and the lid is joined to the container at the position of the flange portion of the container. (B36) A holding jig for a sealing device described in any one of (B1) to (B26) above, wherein the holding body is expandable and has an elastic member that biases at least one of the displacers, and when the displacer is moved so that the exposed area becomes larger, a stress corresponding to the expansion and contraction of the elastic member is applied to the displacer so that the exposed area becomes smaller.

[0203] Furthermore, the present invention can be construed as including the following technical ideas. (C1) A holding jig for a sealing device, comprising: a through hole formed in the vertical direction for inserting an object to be held; a holding body formed to bring the object to be held into contact with the upper edge of the through hole; the holding body comprising a plurality of displacers forming at least a part of the through hole; the plurality of displacers arranged in a ring; and at least some of the displacers configured such that, as the displacer is displaced in a displacement direction determined relative to the displacer according to the size of the object to be held, the exposed area of ​​each of the displacers exposed on the circumferential surface of the through hole changes, thereby enabling the object to be held to push the through hole wider. (C2) The holding jig for a sealing device according to (C1) above, wherein the adjacent displacers slide relative to each other along the displacement direction determined for each of the displacers. (C3) The holding jig for a sealing device according to (C1) or (C2) above, wherein the through-hole is formed by a plurality of the displacers. (C4) A holding jig for a sealing device described in any one of (C1) to (C3) above, wherein the holding body is provided with a regulating structure that regulates the displacement direction of at least some of the displacers, the regulating structure has a guide portion provided corresponding to each of the displacers that guides the displacers in a predetermined direction, and the displacement direction of the displacers is a direction along the guide portion corresponding to the displacer. (C5) A holding jig for a sealing device according to (C4) above, wherein when one of the adjacent displacers moves along the guide portion corresponding to the one displacer, a pressing force is applied to the other displacer, and the other displacer moves along the guide portion corresponding to the other displacer based on the pressing force. (C6) The holding jig for a sealing device described in any one of (C1) to (C5) above, wherein the holding body has a regulating wall portion that regulates the displacement distance of at least one of the displacers, and the regulating wall portion comes into contact with the displacer when the displacer is displaced to a predetermined position. (C7) The holding jig for a sealing device described in (C6) above, wherein the holding body has a first groove portion in the regulating wall portion, the displacer that contacts the regulating wall portion has a second groove portion formed at a position corresponding to the first groove portion, and a regulating rod that is common to the first groove portion and the second groove portion and is embedded in the first groove portion and the second groove portion is provided. (C8) The holding jig for a sealing device according to any one of (C1) to (C7) above, wherein adjacent displacers contact each other at their side surfaces. (C9) The holding jig for a sealing device according to any one of (C1) to (C8) above, wherein adjacent displacement elements are prevented from overlapping with each other in the vertical direction. (C10) The holding jig for a sealing device according to any one of (C1) to (C9) above, wherein the positions of the upper surfaces of the adjacent displacers are aligned at the upper edge of the through hole. (C11) A holding jig for a sealing device according to any one of (C1) to (C10) above, further comprising a base plate, wherein the displacer is arranged on an upper surface of the base plate, and the displacer slides on the upper surface of the base plate. (C12) The holding jig for a sealing device according to any one of (C1) to (C11) above, wherein an extension portion extending along the peripheral surface portion of the through hole is formed on the lower surface of the displacer. (C13) A holding jig for a sealing device described in any one of (C1) to (C12) above, wherein at least the portion of the displacer corresponding to the exposed region forms an inclined surface that slopes downward toward the inside of the through hole as it extends downward from the upper edge of the through hole. (C14) The holding jig for a sealing device according to any one of (C1) to (C13) above, further comprising a protective plate, the protective plate covering at least a part of the displacement element. (C15) A holding jig for a sealing device described in (C14) above, in which a fixing member for fixing the position of the protective plate is removably attached to the protective plate, and in which, when the fixing member is removed, the protective plate is configured to be displaceable in a planar direction normal to the thickness direction of the protective plate. (C16) The holding object has a first holding object that contacts the through hole and a second holding object that is mounted on the first holding object, and when a surface direction of a plane having the vertical direction as a normal is defined as a planar direction, a positioning structure is provided on the upper surface side of the holder to determine at least the position of the second holding object in the planar direction relative to the first holding object. The holding jig for a sealing device according to any one of (C1) to (C15) above. (C17) The positioning structure includes a plurality of pins erected on the upper surface side of the holder, the plurality of pins determining the position of the second held object in the planar direction, and each of the pins being configured to be displaceable in the vertical direction, in the holding jig for a sealing device described in (C16) above. (C18) A holding jig for a sealing device described in any one of (C1) to (C17) above, wherein the object to be held comprises at least a container having a main body and a flange extending outward from the upper end of the main body, and the flange contacts the upper edge of the through hole. (C19) A holding jig for a sealing device described in any one of (C1) to (C18) above, wherein the holding body is provided with an elastic member that biases at least one of the displacers, and the elastic member applies stress to the displacer so that the exposed area is in a position where it is smaller when the displacer has moved so that the exposed area is larger. (C20) The holding jig for a sealing device according to any one of (C1) to (C19) above, which has an outer periphery and is provided with a covering material having cushioning properties so as to surround the outer periphery. (C21) The holding jig for a sealing device according to any one of (C1) to (C20) above, wherein a displacement guide structure for regulating the displacement direction of the displacer is provided on the underside of the displacer. (C22) The holding jig for a sealing device according to any one of (C1) to (C21) above, wherein a groove is formed on the upper surface of the displacer. (C23) The holding jig for a sealing device according to (C22) above, wherein the groove on the upper surface of the displacer extends along the displacement direction of the displacer. (C24) The holding jig for a sealing device according to any one of (C1) to (C23) above, wherein a groove is formed on at least a part of the side surface of the displacer, excluding the surface forming the through hole. (C25) The holding jig for a sealing device according to any one of (C1) to (C24) above, wherein a step is formed on the upper surface of the displacer. (C26) A sealing device comprising: a holding jig for a sealing device according to any one of (C1) to (C25) above; and a pressing body that applies a pressing force to the holding object from above the holding object, wherein when the holding object is placed on the holding jig for the sealing device and the pressing force is applied to the holding object, at least one of the pressing body and the holding jig for the sealing device moves from an initial position where the pressing body and the holding jig for the sealing device are separated by a predetermined distance to a position where the holding object is pressed, the pressing body is present above the holding object, and the pressing force is applied to the holding object from above the holding object. (C27) The sealing device according to (C26) above, wherein the sealing device holding jig moves toward the pressing body. (C28) The sealing device according to (C26) or (C27) above, wherein the pressing body moves toward the sealing device holding jig. (C29) The sealing device according to any one of (C26) to (C28) above, wherein the pressing body has a pressing surface, and the pressing surface is an uneven surface. (C30) The sealing device according to any one of (C26) to (C29) above, which is provided with a heating mechanism capable of heating the pressing body. (C31) The sealing device according to any one of (C26) to (C30) above, wherein a fluororesin sheet is provided between the pressing body and the sealing device holding jig. (C32) A sealing device described in any one of (C26) to (C31) above, wherein the object to be held comprises at least a container having a main body portion with an opening formed on the upper side and a flange portion extending outward from the upper end of the main body portion. (C33) A sealing device described in (C32) above, in which a lid is placed on the container so as to cover the opening on the upper side of the main body and the flange portion, and the container and the lid are interposed between the pressing body and the sealing device holding jig, and the lid is joined to the container at the position of the flange portion of the container. (C34) A sealing method using the sealing device described in (C32) above, in which the container and the lid are interposed between the pressing body and the sealing device holding jig, and the lid is joined to the container at the position of the flange portion of the container. (C35) A holding jig for a sealing device described in any one of (C1) to (C25) above, wherein the holding body is expandable and has an elastic member that biases at least one of the displacers, and when the displacer is moved so that the exposed area becomes larger, a stress corresponding to the expansion and contraction of the elastic member is applied to the displacer so that the exposed area becomes smaller. [Explanation of symbols]

[0204] 10: Holding jig (holding jig for sealing device) 10A: Outer periphery 11: Holding body 11A: Outer surface 11B:Top surface 12: Base plate 12A:Top surface 12B: Bottom surface 13: Support material 13A: Outer surface 13B: Inner peripheral surface 13C:Top surface 14: Displacer 14A: Side 14A1: First aspect 14A2: Second aspect 14B:Top surface 14C: Bottom surface 14TRP: Displacer 15: Ring structure 15A: Outer surface 16:Through hole 16A: Peripheral part 16B: Upper edge 17: Auxiliary hole 17A:Edge 18: Auxiliary hole 18B: Upper edge 19: Regulatory Structure 20: Guide section 21: Restriction wall 21A: Wall 22: Elastic member 23: Guide wall 24 :Wall part 25: Curved wall section 26: Hole 27: First groove 27A: Groove bottom 28: Second groove 28A: Groove bottom 29: Regulatory pole 30: Inclined surface 31: Protrusion 32: Extension part 33: Protective plate 33A:Top surface 33B: Bottom surface 33C: Inside surface 34:Convex piece 35: Positioning structure 36: Slide member 36A: Bottom end 36B: Inner end surface part 36C: Upper end 37: Rail 38: Fixing member 38A: First fixing member 38B: Second fixing member 39: Elastic member 40: Biasing structure 41:Drooping part 42: Support shaft 42A: Tip 43: Rotating member 43A: Rotating member 43B: Rotating member 43C: Rotating member 43D: Rotating member 44: Arm 44A: Tip 45: Pin 45A: Tip 46: Gear 47:Head 48: Bearing 48A: Hole 49:Retreat 50: 1st extension part 51:Second extension part 52: Rotation restriction member 53 :Wall part 55: Pin 55A: Upper end 55B: Bottom end 56: Elastic member 57: Access opening 58: Mounting hole 59: Fixing member 60: Receiving member 61: Space 62 :Aperture 63: Pin biasing structure 64: Bottom 65: Tsuba section 66: Eaves 67: Upper movement restriction structure 68: First through hole for insertion and removal 69: Second through hole for insertion and removal 70: Eaves 72: Elastic member 73: Hooking member 73A: Head 73B: Torso 74A: Annular section 74B: Annular section 75: Hooking member 77: Step 78: Lower part 79: Upper part 80: Boss section 80A:Top surface 81: Boss hole 82: Fixing member 83: Hole 85: Displacement guide structure 86: Long hole part 87: Legs 88: Leg material 88A:Tsubabe 88B: Torso 89: Ring material 90: Covering material 92: Groove 93: First Groove 94: Second Groove 95: Convex mountain-shaped part 140: Bottom 141: Vertex 200: Container 210: Main body 210A: Outer surface 220: Bottom 230: Space 240: Flange part 250: Upper edge 260 :Aperture 290: Lid 300: Sealing device 310: Pressing body 310A: Pressing surface 310D: Side wall part 311:Thick part 320:Support 320A: Base 320B: Standing wall section 320C:Top part 320D: Side wall part 330: Connecting material 350: Outer edge 360: Convex part 361: Recess 370 :Sucker 370A: Adsorption surface 371: Long hole 372: Valve 374: Fluorine resin sheet 380: Support pattern 381:Gripper 382:Fixed stand 385: Support material 386: Elastic members 387: Stopper 388: Connecting material 389 :Spindle 390: Lever 390A:Fulcrum part 391: Movement control structure 392: Vertical movement structure 393: Gear 394: Rack 395: Fluorine resin sheet 396: Gap 397A: First roller 397B: Second roller 398: Housing 398A:Top surface 398B: Side 400: Directional movement structure 401: Slide member 402: Rail 403: Rotating column 404: Fixing member 405: Regulating member 406: Cover body 410: Projecting member 411: Support material 412: Guide rail AR1 :Area AR2 :Area BCT: Center CR:Covered area CT: center ER: exposed area F: Arrow FD: Arrow FH: Arrow J: Arrow K1: Arrow K2: Arrow K3: Arrow K4: Rotation direction M: Holding object MP: center P: Arrow Q: Arrow SL: Arrow T: Displacement direction U: Arrow α: Inclination angle

Claims

1. A holding jig for a sealing device is provided to seal a lid body in the opening of a holding object having a main body portion, an opening formed on an upper side of the main body portion, and a flange portion extending outward from an upper end of the main body portion, and is used to hold the holding object, a holder formed in such a way that the object to be held is inserted therethrough, the holder having a through hole formed in the vertical direction and having a peripheral surface portion and an upper edge portion, and the object to be held is brought into contact with the upper edge portion of the through hole; the holder includes a plurality of displacers that form at least a portion of the through hole; In at least some of the displacers, an exposed area of ​​each of the displacers exposed on the peripheral surface portion of the through hole varies as the displacer is displaced in a displacement direction determined for the displacer, When the displacer is moved so that the exposed area increases, stress is applied to the displacer so that the exposed area decreases; The peripheral surface portion contacts the outer peripheral surface of the main body portion, and the upper edge portion contacts the flange portion. Holding jig for sealing device.

2. Adjacent displacers slide relative to each other along the displacement direction defined for each displacer. The holding jig for a sealing device according to claim 1 .

3. The through hole is formed by a plurality of the displacers. The holding jig for a sealing device according to claim 1 .

4. The plurality of displacers are arranged in a ring shape. The holding jig for a sealing device according to claim 1 .

5. the holder includes a restricting structure that restricts the displacement direction of at least some of the displacers, the restriction structure has guide portions provided corresponding to the respective displacement elements and guiding the displacement elements in a predetermined direction, The displacement direction of the displacer is a direction along the guide portion corresponding to the displacer. The holding jig for a sealing device according to claim 1 .

6. When one of the adjacent displacers moves along the guide portion corresponding to the one displacer, a pressing force is applied to the other displacer, and the other displacer moves along the guide portion corresponding to the other displacer based on the pressing force. The holding jig for a sealing device according to claim 5 .

7. the holder has a restricting wall portion that restricts the displacement distance of at least one of the displacers, the restricting wall portion comes into contact with the displacer when the displacer is displaced to a predetermined position; The holding jig for a sealing device according to claim 1 .

8. the holder has a first groove in the restriction wall, a second groove portion is formed in the displacement element that contacts the restriction wall portion at a position corresponding to the first groove portion, a restricting rod that is common to the first groove portion and the second groove portion and is embedded in the first groove portion and the second groove portion is provided; The holding jig for a sealing device according to claim 7.

9. Adjacent displacers contact each other at side surfaces of the displacers. The holding jig for a sealing device according to claim 1 .

10. Adjacent displacers are prevented from overlapping with each other in the vertical direction. The holding jig for a sealing device according to claim 1 .

11. At the upper edge of the through hole, the positions of the upper surfaces of the adjacent displacers are aligned. The holding jig for a sealing device according to claim 1 .

12. Further comprising a base plate; the displacer is disposed on an upper surface of the base plate, The displacer slides on the upper surface of the base plate. The holding jig for a sealing device according to claim 1 .

13. an extension portion extending along the circumferential surface portion of the through hole is formed on the lower surface of the displacer; The holding jig for a sealing device according to claim 1 .

14. At least a portion of the displacement element corresponding to the exposed region forms an inclined surface that slopes downward from the upper edge of the through hole toward the inside of the through hole. The holding jig for a sealing device according to claim 1 .

15. Further provided with a protective plate, the protective plate covers at least a portion of the displacer; The holding jig for a sealing device according to claim 1 .

16. a fixing member for fixing the position of the protection plate is detachably attached to the protection plate, When the fixing member is removed, the protective plate is configured to be displaceable in a plane direction normal to the thickness direction of the protective plate. The holding jig for a sealing device according to claim 15.

17. the holding object includes a first holding object in contact with the through hole and a second holding object mounted on the first holding object, When the surface direction of the plane having the vertical direction as a normal is defined as the planar direction, a positioning structure that defines the position of the second object relative to at least the first object in the planar direction is provided on the upper surface side of the holder; The holding jig for a sealing device according to claim 1 .

18. the positioning structure includes a plurality of pins provided upright on an upper surface side of the holder, the plurality of pins defining a position of the second held object in the planar direction; Each of the pins is configured to be displaceable in the up and down direction. The holding jig for a sealing device according to claim 17.

19. the holder includes an elastic member that biases at least one of the displacement elements, the elastic member applies stress to the displacer so that the exposed area is in a smaller position when the displacer moves so that the exposed area is in a larger position; The holding jig for a sealing device according to claim 1 .

20. having an outer periphery, A covering material having cushioning properties is provided so as to surround the outer periphery. The holding jig for a sealing device according to claim 1 .

21. a displacement guide structure that regulates the displacement direction of the displacer is provided on the lower surface side of the displacer; The holding jig for a sealing device according to claim 1 .

22. a groove is formed on an upper surface of the displacer, the groove extending along the displacement direction of the displacer and formed in a portion away from a portion corresponding to an upper edge portion of the through hole; The holding jig for a sealing device according to claim 1 .

23. In the adjacent displacers, the entire displacers slide in the displacement direction in response to the stress while maintaining the orientation of the surfaces of the adjacent displacers facing each other. The holding jig for a sealing device according to claim 1 .

24. a groove is formed on at least a part of a side surface of the displacer excluding a surface forming the through hole; The holding jig for a sealing device according to claim 1 .

25. Further provided with a protective plate, the protective plate covers at least a portion of the displacer, the protective plate has an auxiliary hole formed to expose the through hole, a step is formed on the upper surface of the displacer, the step is exposed to the inside of the auxiliary hole of the protective plate, and an upper surface of the step is located higher than a lower surface of the protective plate. The holding jig for a sealing device according to claim 1 .

26. the holder is expandable and has an elastic member that biases at least one of the displacement elements; 2. The holding jig for a sealing device according to claim 1, wherein when the displacer is moved so that the exposed area is increased, a stress corresponding to the expansion and contraction of the elastic member is applied so that the exposed area is reduced relative to the displacer.

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