Dispensing container

Abstract

To provide a feeding container that can prevent a medium plate body from becoming loose.SOLUTION: A feeding container includes: a container body 2 having an opening in one end; a rotational operation part 3 mounted in the other end of the container body 2 in a relatively rotatable manner; a screw body 4 fixed in the rotational operation part 3, and having a first screw part 42N formed in the inside surface; and a medium plate body 5 inserted into the container body 2 non-rotatably, and screwed in the first screw part 42N of the screw body 4 and being movable in an axial direction. The medium plate body 5 includes: a medium plate main body 53; and a tubular part 54 having a second screw part 54N extending from a bottom of the medium plate main body 53 to the other end side, and screwed in the first screw part 42N. There are also included: a rod-like member 6 mounted to the rotational operation part 3, and inserted into the tubular part 54 to be engaged non-rotatably; and a backlash prevention material 8 mounted to the medium plate main body 53, and for preventing the backlash to the medium plate body 5 of the medium plate body 5.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a propelling container for propelling the contained contents for use. [Background technology]

[0002] The dispensing container comprises a container body, a spiral tube fitted into the container body, a rotary operating tube inserted into the container body and fitted onto the outer periphery of the spiral tube, and a center plate body that holds rod-shaped contents, is stored in the rotary operating tube so that it can move up and down, and screws onto the spiral tube.

[0003] The central plate includes a central plate that is housed within the operating cylinder of the rotating operating cylinder and is prevented from rotating so as to be movable up and down, and a cylindrical operating shaft that extends downward from the underside of the bottom of the central plate and has a male thread that screws into the female thread of the spiral cylinder. When the container body and the spiral cylinder are rotated counterclockwise, which is the direction of rotation for unwinding, as viewed from above, the female thread of the spiral cylinder screws into the male thread of the central plate, causing the central plate to rise within the rotating operating cylinder, and the rod-shaped content held in the central plate can be unwound and used from the operating cylinder of the rotating operating cylinder (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-141171 Summary of the Invention [Problem to be solved by the invention]

[0005] In the dispensing container of Patent Document 1, the inner plate body is supported by the spiral cylinder by screwing the male threaded portion of the cylindrical operating shaft of the inner plate body into the female threaded portion of the spiral cylinder.Therefore, the further the inner plate body rises, the greater the distance that the inner plate portion of the inner plate body moves upward from the female threaded portion, which causes the inner plate body to rattle and makes its movement unstable.

[0006] In view of the above, an object of the present invention is to provide a dispensing container that can prevent the inner tray from rattling. [Means for solving the problem]

[0007] The dispensing container of the present invention comprises a cylindrical container body having an opening at one end, a cylindrical rotation operating unit attached to the other end of the container body so as to be rotatable relative to the container body, a cylindrical screw body fixed within the rotation operating unit and having a first screw portion formed on its inner surface, and a tray body inserted non-rotatably into the container body and threadedly engaged with the first screw portion of the screw body so as to be movable axially, wherein the tray body comprises a tray body having a bottom for receiving the contents to be contained in the container body, and a cylindrical portion extending from the bottom of the tray body to the other end and having a second screw portion on its outer surface which threads with the first screw portion, a rod-shaped member attached to the rotation operating unit and inserted into the cylindrical portion so as to engage non-rotatably, and a rattle prevention material attached to the tray body for preventing the tray body from rattling relative to the container body.

[0008] With this configuration, by rotating the rotation operating part relative to the container body, the screw body rotates and the cylindrical part having the second screw part that screws into the first screw part of the screw body moves in the axial direction. Here, a rod-shaped member is inserted into the cylindrical part of the inner plate body, and an anti-rattle material is provided on the inner plate body, preventing the inner plate body from rattling relative to the container body.

[0009] In addition, in the propelling container according to the present invention, the rattle prevention member may be a sealing member provided around the entire outer periphery of the gap between the inner tray body and the container body.

[0010] As described above, by configuring the anti-rattle material so that the gap between the inner plate body and the container body is sealed with a sealing member around the entire periphery, it is possible to prevent the liquid or solid contents contained in the container body from dissolving and becoming liquefied and leaking from between the inner plate body and the container body.

[0011] In addition, the dispensing container of the present invention may be configured so that when the intermediate tray body moves toward one end of the container body, the engagement between the cylindrical portion and the rod-shaped member is released, allowing the rod-shaped member to rotate freely relative to the cylindrical portion.

[0012] As described above, when the inner plate body moves toward one end of the container body, the engagement between the cylindrical portion and the rod-shaped member is released, causing the rod-shaped member to spin freely relative to the cylindrical portion, thereby allowing the user to recognize that the dispensing of the contents has reached its end.

[0013] The propelling container according to the present invention may also include a one-way rotation mechanism that restricts the rotation direction of the rotation operation part to movement only toward one end of the inner tray body.

[0014] As described above, by using the one-way rotation mechanism to restrict the rotation direction of the rotation operating part to movement only toward one end of the inner tray body, the contents can be reliably moved only in the direction of being ejected outward from the opening of the container body.

[0015] In addition, the dispensing container of the present invention is a ratchet mechanism in which the one-way rotation mechanism has a first ratchet tooth on the rotating side provided on the inner surface of the rotation operating part, and a second ratchet tooth on the fixed side configured to be able to move by rotating the rotation operating part in one direction and to engage with the first ratchet tooth to prevent movement by rotating the rotation operating part in the other direction, and the second ratchet tooth may be integrally formed on the rod-shaped member.

[0016] As described above, by rotating the rotary operating part in one direction, the first ratchet teeth move past the second ratchet teeth, and by rotating the rotary operating part in the other direction, the first ratchet teeth engage with the second ratchet teeth, preventing the first ratchet teeth from moving. By integrally forming the second ratchet teeth on the rod-shaped member, the number of parts can be reduced, and assembly man-hours can also be reduced. [Effects of the Invention]

[0017] As described above, according to the present invention, a dispensing container can be provided that can prevent the inner tray body from rattling by using a rod-shaped member inserted into the cylindrical portion and an anti-rattle material attached to the inner tray body. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 2 is a vertical cross-sectional view of the propelling container of the present invention. [Figure 2] 2 is a vertical cross-sectional view of the propelling container in FIG. 1 with the inner tray body moved to the highest position. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. 4 is a cross-sectional view taken along line VV in FIG. [Figure 6] FIG. 2 is a vertical cross-sectional view of the rotary operation unit. [Figure 7] FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. [Figure 8] FIG. [Figure 9] FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. 8. [Figure 10A] FIG. [Figure 10B] FIG. [Figure 11] FIG. [Figure 12A] FIG. [Figure 12B] FIG. [Figure 13] FIG. [Figure 14] 12B is a cross-sectional view taken along line XIV-XIV in FIG. 12A. [Figure 15] FIG. 12C is a cross-sectional view taken along line XV-XV in FIG. 12B. [Figure 16] 12B is a cross-sectional view taken along line XVI-XVI in FIG. 12A. [Figure 17] FIG. [Figure 18] 18 is a cross-sectional view taken along line XVIII-XVIII in FIG. 17. [Figure 19] 19 is a cross-sectional view taken along line XIX-XIX in FIG. 17. [Figure 20] FIG. 2 is a cross-sectional view taken along the line XX-XX in FIG. [Figure 21] FIG. 10 is a longitudinal cross-sectional view of a main part showing an attachment portion to which a sealing member of another type is attached. [Figure 22] FIG. 10 is a longitudinal cross-sectional view of a main part showing a peripheral wall portion of a container body of another embodiment. [Figure 23] FIG. 10 is a cross-sectional view showing the internal shape of the side wall of another embodiment of the inner tray body. [Figure 24] FIG. 10 is a vertical cross-sectional view of another type of propelling container. [Figure 25] 25 is a vertical cross-sectional view of the propelling container in FIG. 24 with the inner tray body moved to the highest position. [Figure 26] FIG. 25 is a front view of the propelling container of FIG. 24 with the cap removed. [Figure 27] FIG. 10 is an explanatory view of the main part, showing the state immediately before the application part is inserted into the main body part. [Figure 28] 25 is a vertical cross-sectional view of another type of propelling container in which the shape of the inner tray body of FIG. 24 is modified. [Figure 29] 29 is a vertical cross-sectional view of the propelling container in FIG. 28 with the inner tray body moved to the highest position. DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, a propelling container according to one embodiment of the present invention will be described with reference to the drawings.

[0020] As shown in FIGS. 1 and 2, the propelling container 1 includes a container body 2, a rotation operation part 3, a screw body 4, an inner plate body 5, a rod-shaped member 6, and a cap .

[0021] The container body 2 is made of, for example, polypropylene (PP) resin, and is configured in a cylindrical shape with an opening 21K at one end (the upper end in FIG. 5) as shown in Fig. 5. In the following description, the one end will be referred to as the upper end and the other end as the lower end. The opening 21K has an obliquely cut shape.

[0022] 5, the container body 2 includes a main body portion 21 that forms the opening 21K from its upper end to its lower end, and a lower portion 22 that extends from its lower end to its lower end and has an outer diameter slightly smaller than that of the main body portion 21 so that the opening 21K can be inserted into the rotary operation unit 3. A peripheral wall 22A that forms the through hole 22K is formed on the inner surface of the middle portion in the vertical direction of the lower portion 22 so as to protrude inward. As shown in FIGS. 3 and 4, the through hole 22K is configured as a substantially oval-shaped hole that includes a pair of opposing arc portions 22a, 22a and a pair of flat portions 22b, 22b that connect both circumferential ends of the arc portions 22a, 22a. The approximately crescent-shaped portion surrounded by a pair of flat portions 22b, 22b of the peripheral wall 22A and a pair of arc portions 22c, 22c extending from both circumferential ends of the pair of arc portions 22a, 22a is provided with protrusions 22B, 22B (see Figures 4 and 5) that protrude downward.

[0023] The lower end of the lower portion 22 is provided with an annular groove 22M (see FIGS. 1 and 5) into which the annular upper end of the screw body 4, which will be described later, fits. By fitting the groove 22M of the container body 2 into the upper end of the screw body 4, the container body 2 and the screw body 4 are configured to be rotatable relative to each other and vertical movement is prevented. In this embodiment, the contents contained in the container body 2 are stick-shaped cosmetics, but liquid contents may also be used. In the case of liquid contents, a lid is attached to the opening 21K to prevent the liquid from leaking out of the opening 21K, and a plug is provided on the cap 7 to cover the liquid discharge hole formed in the lid.

[0024] The rotation operation part 3 is made of, for example, polypropylene (PP) resin and is configured in a cylindrical shape into which the lower part 22 (see FIG. 5) of the container body 2 can be fitted. As shown in FIG. 6, the upper end of the rotation operation part 3 is provided with a thin-walled part 31 whose outer surface 31A is located inside and thinner than the outer surfaces of the other lower parts, and the lower end of the cap 7 is fitted onto this thin-walled part 31. The outer surface 31A of the thin-walled part 31 is provided with a plurality of arc-shaped protrusions 31T spaced apart in the circumferential direction. Recesses 72A (see FIG. 1) that engage with these protrusions 31T and can be released are provided on the inner surface of the lower end of the cap 7, which will be described later. An annular protrusion 32T that engages with the lower part of the screw body 4, which will be described later, is formed on the inner surface 32A of the lower end of the main body part 32, which extends downward from the lower end of the thin-walled part 31 of the rotation operation part 3. The inner surface of the lower end of the rotary operation part 3 is provided with a peripheral wall 32B for forming a circular through-hole 32K for inserting a main body 61 of a rod-shaped member 6, which will be described later.

[0025] As shown in FIG. 7 , a plurality of (14 in FIG. 7 ) first ratchet teeth 33 are formed at intervals (equally spaced in this embodiment) in the circumferential direction, extending from the outer peripheral lower surface 32b of the peripheral wall 32B to the lower end inner surface 32c of the main body 32, which is continuous from the outer peripheral lower surface 32b. Two specific first ratchet teeth 33, 33 of these first ratchet teeth 33 engage with a plurality of (two in this embodiment) second ratchet teeth 63, 63 (see FIG. 20 ), which will be described later, to prevent rotation of the rotation operation member 3 in one direction. The plurality of first ratchet teeth 33 and the plurality of second ratchet teeth 63 constitute a ratchet mechanism. In this embodiment, the ratchet mechanism is shown as a one-way rotation mechanism that restricts the rotation of the rotation operation member 3 to only moving the inner plate 5 toward one end of the container main body 2, but a one-way clutch mechanism may also be used.

[0026] The screw body 4 is made of, for example, polyacetal (POM) resin, and as shown in Figures 8 and 9, has a circular bottom portion 41 located at the lower end and a tubular portion 42 extending upward from the outer periphery of the bottom portion 41. A circular through-hole 41K is formed in the bottom portion 41 for inserting a main body portion 61 (see Figure 1) of a rod-shaped member 6, which will be described later. A first screw portion (female screw portion) 42N is formed on the inner surface of the tubular portion 42 over substantially the entire area in the vertical direction, and a second screw portion (male screw portion) 54N (see Figures 12A and 12B) of a center plate body 5, which will be described later, is threadedly engaged with this first screw portion (female screw portion) 42N. The tubular portion 42 has an upper end portion 43 consisting of a pair of flat portions 43A, 43A whose outer peripheral surfaces face each other and a pair of arc portions 43B, 43B connecting these flat portions 43A, 43A, and a cylindrical portion 44 (see Figures 10A and 10B) having a circular outer surface 44A (see Figure 9) extending from the lower end of the upper end portion 43 to the bottom portion 41.

[0027] The inner plate 5 is made of, for example, polypropylene (PP) resin. As shown in FIGS. 12A, 12B, and 16, the inner plate 53 includes a bottom 51 that receives the contents contained in the container body 2 and a sidewall 52 that extends upward from the outer periphery of the bottom 51. The sidewall 52 also includes a cylindrical portion 54 that extends downward from a portion inward from the outer periphery of the bottom 51 of the inner plate body 53 and has a second screw portion 54N on its outer surface that screws into the first screw portion 42N (see FIG. 1). The sidewall 52 is cylindrical and expands outward toward its upper end. The sidewall 52 includes an annular recess 52A for receiving a rattle prevention member 8 (see FIG. 1) that prevents rattle between the inner plate 5 and the container body 2. In this embodiment, the second screw portion 54N is provided only at the lower end of the cylindrical portion 54. However, the second screw portion 54N may be provided along substantially the entire height of the cylindrical portion 54.

[0028] As shown in Fig. 1, the rattle prevention member 8 is a sealing member provided around the entire periphery of the gap between the outer surface of the side wall portion 52 of the inner tray body 53 and the inner surface of the container body 2. The sealing member can be configured, for example, as an O-ring made of nitrile rubber (NBR) or a foam packing. By configuring the sealing member with an O-ring or packing in this manner, it is possible to prevent the liquid or solid contents contained in the container body 2 from leaking out from between the outer surface of the side wall portion 52 of the inner tray body 53 and the inner surface of the container body 2.

[0029] 16, the cylindrical portion 54 has a pair of opposing straight portions 54A, 54A whose inner and outer surfaces are formed as flat surfaces, and a pair of arcuate portions 54B, 54B whose inner and outer surfaces are formed as arcuate surfaces so as to connect both outer circumferential ends of the straight portions 54A, 54A. Second screw portions (male screw portions) 54N, 54N (see FIG. 12B) that screw into the first screw portion (female screw portion) 42N of the screw body 4 are formed only at the lower ends of the pair of arcuate portions 54B, 54B on the outer surface of the cylindrical portion 54 so as to protrude radially outward from the outer surfaces of the arcuate portions 54B, 54B.

[0030] 12A, 12B, and 16, a protrusion 54T is formed at each lower end of the straight portions 54A, 54A, and contacts the lower surface 22D (see FIG. 2) of the peripheral wall 22A of the container body 2 when the inner plate 5 is at the maximum raised position. Each protrusion 54T prevents the cylindrical portion 54 from slipping upward through the through-hole 22K of the peripheral wall 22A (see FIG. 2).

[0031] 14 to 16, the cylindrical portion 54 has two pairs of cylindrical portion inner surfaces 54E, 54E, 54F, 54F facing each other. These two pairs of cylindrical portion inner surfaces 54E, 54E, 54F, 54F are configured to approach each other toward the upper end (and to move farther apart toward the lower end). One of the cylindrical portion inner surfaces 54E, 54E is formed as a curved surface in cross section, and the other cylindrical portion inner surface 54F, 54F is formed as a flat surface in cross section.

[0032] 13 to 15, a straight rib 55 is formed on the upper surface of the bottom 51 of the inner plate body 5, standing perpendicular to the bottom 51 (protruding upward). This rib 55 extends in the diameter direction of the side wall 52 so as to horizontally divide the internal space of the inner plate body 53 in half. By forming this rib 55, as shown in FIG. 13, a semicircular first space 81 is formed by one side surface 55A of the rib 55 and the inner surface 52U of the side wall 52, and a semicircular second space 82 is formed by the other side surface 55B (see FIG. 13) of the rib 55 and the inner surface 52U of the side wall 52. When assembling the dispensing container 1, the cylindrical portion 54 of the inner tray 5 is inserted through the opening 21K at the upper end of the container body 2 (see FIG. 5). When the inner tray 5 is inserted into the container body 2 (almost fully housed), the lower end of the cylindrical portion 54 of the inner tray 5 is inserted through the through-hole 22K (approximately oval in FIG. 3) of the container body 2. The rotational direction of the cylindrical portion 54 and the through-hole 22K is aligned so that the shape of the cylindrical portion 54 of the inner tray 5 matches the shape of the through-hole 22K in the insertion direction (vertical direction). In other words, the phase of the cylindrical portion 54 of the inner tray 5 is aligned with the through-hole 22K. Here, the through-hole 22K is a through-hole with which the cylindrical portion 54 engages so that the inner tray 53 does not rotate when inserted into the container body 2. To achieve this, as described above, the cylindrical portion 54 and the through-hole 22K are formed into a deflectable shape, such as a polygonal, elliptical, or oval non-circular shape, so that they engage with each other in the rotational direction. This prevents the cylindrical portion 54 from rotating, allowing only axial movement. However, this shape requires directional control (alignment) of the cylindrical portion 54 and the through-hole 22K. Therefore, when inserting the inner tray body 53 into the container body 2 in an unrotatable manner, the inner tray body 5 is rotated to align the rotational direction of the cylindrical portion 54 and the through-hole 22K. When the inner tray body 5 is rotated, the pair of linear portions 54A, 54A of the cylindrical portion 54 (see FIG. 16) aligns with the pair of long sides, i.e., the flat portions 22b, 22b, of the through-hole 22K (see FIG. 3), allowing the lower end of the cylindrical portion 54 of the inner tray body 5 to be inserted into and engaged with the through-hole 22K.However, when the inner plate 5 is almost fully housed within the container body 2 (when there is no gap between the inner surface of the container body 2 and the outer surface of the inner plate 5 (the inner plate body 53), i.e., when the inner plate 5 is completely inserted within the container body 2), it is difficult to grasp and rotate the inner plate 5 with fingers. Therefore, the inner plate 5 can be rotated by inserting fingers into the first space 81 and the second space 82 formed in the inner plate 5 and grasping the rib 55 (or by using a tool (not shown) with a bifurcated tip that can reach the first space 81 and the second space 82 and grasp the rib 55). Then, by rotating the inner plate 5 around its axis using fingers or a tool, the pair of linear portions 54A, 54A of the cylindrical portion 54 can be aligned with the pair of flat portions 22b, 22b of the through-hole 22K. Therefore, the inner plate 5 can be quickly inserted into the through-hole 22K of the container body 2, improving assembly efficiency. Furthermore, because the ribs 55 extend in a direction perpendicular to the pair of straight portions 54A of the cylindrical portion 54, it is easy to determine the orientation of the pair of straight portions 54A of the cylindrical portion 54. Therefore, by checking the orientation of the flat portions 22b of the through-hole 22K of the container body 2 and then inserting the cylindrical portion 54 of the inner plate 5 through the opening 21K at the upper end of the container body 2 (see FIG. 5), it is possible to determine the orientation of the pair of straight portions 54A of the cylindrical portion 54 relative to the orientation of the flat portions 22b of the through-hole 22K of the container body 2, and therefore the inner plate 5 can be quickly rotated so that the straight portions 54A are aligned with the flat portions 22b.

[0033] The shape of the rib 55 can be selected arbitrarily as long as it allows positioning and insertion using a jig, etc. Taking into consideration moldability and ease of assembly, for example, a straight line shape can be used.

[0034] As mentioned above, depending on the cross-sectional shape of the cylindrical portion 54 of the inner plate 5, if directional control is required in relation to the through-hole 22K, providing a rib 55 on the inner plate body 53 of the inner plate 5 improves assembly. On the other hand, even if the directional control is not (unnecessary), if a sealing member such as a packing is provided around the inner plate body 53, when the inner plate 5 is placed into the container body 2, the inner plate body 53 fits snugly into the container body 2, making it difficult to push the inner plate 5 in. Therefore, from the perspective of improving assembly, it is better to provide a rib on the inner plate body 53 so that the inner plate 5 can be pushed in while rotating it using a tool or the like.

[0035] The rod-shaped member 6 is made of, for example, polyacetal (POM) resin, and as shown in Figures 17 to 19, has a main body portion 61 that is sized to be insertable into the cylindrical portion 54 of the inner plate body 5 (see Figure 1), and a circular fixing portion 62 that is integrally formed at the lower end of the main body portion 61 and is engaged and fixed to the lower end of the rotation operating unit 3.

[0036] The main body 61 includes a pair of linear portions 61A, 61A whose outer surfaces are formed as flat surfaces, and a pair of arcuate portions 61B, 61B whose outer surfaces are formed as arcuate surfaces and connect the circumferential ends of the linear portions 61A, 61A. The linear portions 61A, 61A and the arcuate portions 61B, 61B are tapered toward their upper ends. As shown in FIG. 1 , when the main body 61 is inserted into the cylindrical portion 54 of the inner plate 5, there is no or almost no gap between the main body 61 and the cylindrical portion 54, and the main body 61 is non-rotatably engaged with the inner plate 5. Furthermore, by rotating the rotation operation unit 3 relative to the container body 2, the screw body 4 rotates, and the cylindrical portion 54, which has a second screw portion (male screw portion) 54N that is threaded into the first screw portion (female screw portion) 42N of the screw body 4, moves axially. Here, a rod-shaped member 6 is inserted into the cylindrical portion 54 of the inner plate body, and an anti-rattle member 8 is provided on the inner plate body 53, thereby preventing the inner plate body 5 from rattling relative to the container body 2.

[0037] The upper end of the fixing portion 62 has an annular protrusion 62A that protrudes radially outward to engage and fix over an annular protrusion 34 (see FIG. 1) that has an arcuate cross section and is formed on the inner surface of the lower end of the rotation operation unit 3. As shown in FIGS. 18 to 20, second ratchet teeth 63 that protrude upward from two locations on the outer periphery of the upper end of the protrusion 62A are formed at equal intervals along the outer periphery. Each second ratchet tooth 63 has a base 63A that rises upward from the upper surface of the protrusion 62A, an arcuate portion 63B that extends from the base 63A along the outer periphery toward the front side in the rotation direction R of the rotation operation unit 3, and a claw portion 63C that protrudes radially outward from the arcuate portion 63B toward the front side in the rotation direction R of the rotation operation unit 3. The pawl portion 63C has a linear stopper surface 63S that extends radially at the front end in the rotational direction of the rotation operating unit 3, and has an arcuate surface 63R that is positioned radially inward as it moves from the radially outer end of this stopper surface 63S toward the rear side in the rotational direction of the rotation operating unit 3. As described above, the second ratchet teeth 63 are integrally formed with the rod-shaped member 6, which allows for a reduction in the number of parts.

[0038] 20, each of the first ratchet teeth 33 provided in the rotation operation unit 3 has a flat surface 33A that extends radially along the rear end in the rotation direction R of the rotation operation unit 3, and an arcuate surface 33B that protrudes outward from the radially inner end of this flat surface 33A toward the front side in the rotation direction of the rotation operation unit 3. Therefore, by rotating the rotation operation unit 3 in the direction R shown in FIG. 20 (counterclockwise when viewed from above), the arcuate surfaces 33B of two specific first ratchet teeth 33 come into contact with the arcuate surfaces 63R of two second ratchet teeth 63, and the pawl portions 63C deform radially inward, causing the first ratchet teeth 33 to climb over the second ratchet teeth 63. The claws 63C, 63C of the second ratchet teeth 63, 63 that were deformed when they passed over return to their original shape and come into contact with the arcuate surfaces 33B, 33B of the next first ratchet teeth 33, 33 on the rear side in the direction of rotation R, emitting a contact sound. As the rotation operation part 3 continues to rotate, the inner tray body 5 gradually rises and the contents are dispensed out through the opening 21K (see Figure 2).

[0039] As shown in FIG. 2 , the movement of the inner plate 5 toward one end of the container body 2 (in this embodiment, the movement of the inner plate 5 toward the uppermost position) disengages the lower end of the cylindrical portion 54 of the inner plate 5 from the upper end of the rod-shaped member 6. This allows the rod-shaped member 6 to rotate freely relative to the cylindrical portion 54. The rotation of the rod-shaped member 6 freely relative to the cylindrical portion 54 allows the user to recognize that the dispensing of the contents has ended. By setting the timing at which the rod-shaped member 6 rotates freely relative to the cylindrical portion 54 to be before or at the time when the pair of protrusions 54T, 54T abut against the lower surface 22D of the peripheral wall 22A of the container body 2, it is possible to prevent the pair of protrusions 54T, 54T from abutting against the lower surface 22D of the peripheral wall 22A of the container body 2 and overrunning upward, which would otherwise cause deformation or damage to the container body 2 or the inner plate 5.

[0040] Furthermore, when the rotation operation part 3 is rotated in the direction opposite to the rotation direction R (see FIG. 20) (clockwise when viewed from above), the flat surfaces 33A, 33A of two specific first ratchet teeth 33, 33 come into contact with the stopper surfaces 63S, 63S of the two claw portions 63C, 63C, respectively, thereby preventing rotation of the rotation operation part 3. In this way, by restricting the rotation direction R of the rotation operation part 3 to movement only toward one end side (upward side) of the inner plate body 5, it is possible to reliably move the contents only in the direction of discharging them outward from the opening 21K of the container body 2.

[0041] The cap 7 is made of, for example, polypropylene (PP) resin, and as shown in Fig. 1, includes a circular top plate portion 71 and a cylindrical portion 72 extending downward from the outer periphery of the top plate portion 71. The inner surface of the lower end of the cylindrical portion 72 is provided with annular recesses 72A that can be disengaged and engage with multiple protrusions 31T (see Fig. 6) of the thin-walled portion 31 of the rotation operation unit 3. Therefore, by fitting the lower end of the cap 7 onto the thin-walled portion 31 of the rotation operation unit 3, the cap 7 is engaged and fixed to the rotation operation unit 3.

[0042] When assembling the dispensing container 1, the screw body 4 is inserted into the rotation operation unit 3 and fixed in place. Next, the inner plate 5 is inserted into the container body 2 from above. When the lower end of the inner plate 5 reaches the through-hole 22K of the container body 2, the inner plate 5 is rotated with the tip of a tool abutting the rib 55 as described above to align the lower end of the inner plate 5 with the through-hole 22K, and then the lower end of the inner plate 5 is inserted into the through-hole 22K. Next, the lower end of the inner plate 5 protruding downward from the through-hole 22K is screwed onto the screw body 4, and the lower end of the container body 2 is fitted between the rotation operation unit 3 and the screw body 4 from above. Next, the rotation operation unit 3 is rotated relative to the container body 2 to move the inner plate 5 to its lowest position. After the movement, the rod-shaped member 6 is inserted through the through-hole 32K of the rotation operation part 3, and the rotation position is checked while inserting the rod-shaped member 6 so that the main body 61 of the rod-shaped member 6 fits into the cylindrical part 54 of the inner plate 5, and the fixing part 62 of the rod-shaped member 6 climbs over the protrusion 34 of the rotation operation part 3, thereby fixing the rod-shaped member 6 to the rotation operation part 3 and completing the assembly of the container body 2. Thereafter, the cap 7 is fitted onto the container body 2, completing the assembly of the propelling container 1. The contents (e.g., cosmetics) are contained in the container body 2 after the assembly of the container body 2 is completed.

[0043] As another embodiment, a dispensing container 100 suitable for liquid contents will be described with reference to Figures 24 and 25. Like the dispensing container 1 described above, this dispensing container 100 comprises a container body 2, a rotation operation part 3, a screw body 4, an inner plate body 5, a rod-shaped member 6, and a cap 7. Of these, the container body 2, the inner plate body 5, and the cap 7 are different from those shown in Figure 1. In addition, a new applicator part 23 is provided that fits into the upper end of the container body 2, and these will be described below. Note that Figure 24 shows the inner plate body 5 in the lowest position, and Figure 25 shows the inner plate body 5 in the highest position.

[0044] The dispensing container 100, which is suitable for liquid contents, can dispense small amounts of liquid contents at fixed intervals by using the ratchet mechanism described above, so that more liquid contents than necessary will not be dispensed in one dispense, and since it is easy to adjust the amount to the required amount by dispensing at fixed intervals, it is particularly advantageous in terms of use.

[0045] The container body 2 includes a cylindrical main body portion 21 and a cylindrical lower portion 22 extending from its lower end to its lower end. The lower portion 22 has an outer diameter slightly smaller than that of the main body portion 21 so that it can be inserted into the rotary operation unit 3. The applicator portion 23 is inserted into the inside of the upper end opening 21A of the main body portion 21. The inner surface of the upper end of the main body portion 21 may be formed with an annular protruding ridge portion 21T (see FIG. 27) that protrudes inward and has a semicircular cross section. The protruding ridge portion 21T fits into the upper and lower gaps between a pair of upper and lower protruding ridge portions 23T, 23T (see FIG. 27) provided on the fitting portion 23A of the inserted applicator portion 23, as described below, and functions as an undercut to prevent the applicator portion 23 from coming off the cap 7 together with the main body portion 21 when the cap 7 is opened. The lower portion 22 has the same configuration as that shown in FIG. 1, and therefore is designated by the same reference numeral as that shown in FIG. 1 and will not be described again.

[0046] The applicator 23 is made of an elastic material such as natural rubber, silicone, or elastomer, and includes a substantially annular fitting portion 23A that fits inside the upper end opening 21A of the main body 21, and a top wall portion 23B that extends upward from the upper end of the fitting portion 23A, as shown in Fig. 27. The fitting portion 23A may include a fitting main body portion 23a on which a pair of upper and lower protrusions 23T, 23T protrude radially outward from the outer surface to abut against the inner surface of the upper end of the main body 21 to seal with the main body 21, and a lower portion 23b having a tapered surface that is positioned radially inward as it extends from the lower end of the fitting main body 23a. The pair of upper and lower protrusions 23T, 23T are formed in an annular, arc-shaped cross section that protrudes radially outward from the outer surface (surface) of the fitting main body 23a. By inserting the applicator portion 23 into the inside of the upper end opening 21A of the main body portion 21, the protrusion portions 23T, 23T of the fitting main body portion 23a are pressed against the inner surface of the main body portion 21 and deformed inward, thereby strengthening the seal between the fitting main body portion 23a and the main body portion 21, which is preferable.

[0047] Top wall portion 23B is circular in plan view and, as shown in FIG. 27, has an outer peripheral edge 23C that protrudes radially outward beyond the outer surface of fitting portion 23A. When applicator 23 is inserted into upper end opening 21A of main body 21, lower surface 23D of outer peripheral edge 23C of top wall portion 23B abuts against upper end surface 21B of main body 21, thereby completing insertion of applicator 23 into main body 21. Also, as shown in FIG. 24, top wall portion 23B has a tapered upper surface 23E that is positioned upward toward the radial center, and an opening 23F is formed in the radial center for discharging the liquid content in main body 21 to the outside. Additionally, a circular skirt portion 23G is formed extending downward from the lower surface of the inner peripheral edge of top wall portion 23B. Furthermore, a circular space 23H is formed between skirt portion 23G and fitting portion 23A. This space 23H functions as a receiving portion into which a circular annular protrusion 53D of the inner plate body 5, which will be described later, is inserted.

[0048] 26, the upper surface 23E and outer periphery 23C of the top wall 23B may be electrostatically flocked (flocked) so that the liquid content can be impregnated into the upper surface 23E and outer periphery 23C of the top wall 23B and applied to the face, hands, etc. Although not shown, the upper surface 23E of the top wall 23B may be spherical so that it can be used to massage the face, hands, etc.

[0049] The inner plate 5 is made of polypropylene (PP) resin as described above and includes an inner plate body 53 that pushes liquid contents contained in the container body 2 upward, and a cylindrical portion 54 that extends downward from a portion inside the outer periphery of the inner plate body 53 and has a second screw portion 54N on its outer surface that screws into the first screw portion 42N. The inner plate body 53 includes a trapezoidal upper portion 53A with a tapered surface that tapers inward as it extends upward, and an annular lower portion 53B that extends downward from the lower end of the upper portion 53A. The upper side of the lower portion 53B includes an annular recess 53C for fitting the sealing member 8, which prevents rattling of the inner plate body 5 with respect to the container body 2 and seals the gap between the inner plate body 53 and the container body 2 along the entire periphery. In this embodiment, the second screw portion 54N is provided only at the lower end of the cylindrical portion 54, but it may also be provided over substantially the entire height of the cylindrical portion 54. An annular protrusion 53D that protrudes upward is formed on the outer peripheral edge 53E of the upper end surface of the upper portion 53A of the inner plate body 53. As shown in FIG. 25, when the inner plate body 53 moves to the uppermost position, the protrusion 53D enters the space 23H and pushes the liquid contents (not shown) that have accumulated in the space 23H radially inward of the protrusion 53D. This reduces the amount of liquid contents remaining in the container body 2.

[0050] Here, the uppermost position of the inner tray body 5 is restricted by the outer peripheral edge 53E of the inner tray main body 53 abutting against the lower surface 23d of the lower part 23b of the applicator part 23. At the same time as this abutment, as described above, the lower end of the tubular part 54 of the inner tray body 5 and the upper end of the rod-shaped member 6 are disengaged. This allows the rod-shaped member 6 to rotate freely relative to the tubular part 54. The rotation of the rod-shaped member 6 freely relative to the tubular part 54 allows the user to recognize that the dispensing of the contents has reached its end point.

[0051] As described above, the cap 7 is made of, for example, polypropylene (PP) resin, and as shown in FIG. 24 , includes a circular top plate portion 71 and a cylindrical portion 72 extending downward from the outer periphery of the top plate portion 71. As described above, the inner surface of the lower end of the cylindrical portion 72 is provided with annular recesses 72A that can be disengaged and engage with the multiple protrusions 31T of the thin-walled portion 31 of the rotation operation unit 3. Therefore, by fitting the lower end of the cap 7 onto the thin-walled portion 31 of the rotation operation unit 3, the cap 7 is fixedly engaged with the rotation operation unit 3. A sealing portion 73 is formed at the center of the lower surface (inner surface) of the top plate portion 71 of the cap 7, protruding downward. The sealing portion 73 seals the opening 23F of the application unit 23 when the cap 7 is fixedly engaged with the rotation operation unit 3 and closed. The sealing portion 73 is cylindrical, with a rounded arc-shaped lower end. The shape of the cap 7 is not limited to a cylindrical shape with an open lower end. For example, various shapes can be selected, such as a polygonal column shape with an open bottom, a polygonal pyramid shape, a cone shape, etc., depending on the design (shape) of the container body 2. The surface of the cap 7 can also be decorated.

[0052] In addition, in Figures 28 and 29, the shape of the inner tray body 53 of the inner tray body 5 has been changed so that the amount of liquid content remaining in the container body 2 when the inner tray body 5 moves to the highest position can be further reduced.

[0053] That is, the inner plate body 53 of the inner plate body 5 includes an upper portion 531 and a lower portion 532 extending downward from the lower end of the upper portion 531. The upper portion 531 is configured in an annular shape. This upper portion 531 is formed with an annular recess 531A for fitting the sealing member 8, which prevents the inner plate body 5 from rattling relative to the container body 2 and seals the gap between the inner plate body 53 and the container body 2 over the entire periphery. The lower portion 532 is configured in an inverted trapezoidal shape with a tapered surface that tapers inward toward the lower end. The sealing member 8 is fitted into the recess 531A from below the inner plate body 5. Also, in FIG. 24, the sealing member 8 is fitted into the recess 53C of the inner plate body 53 from above the inner plate body 5. The upper end of the upper portion 531 is provided with a circular first protrusion 531a protruding upward from the outer periphery and a circular, rod-shaped second protrusion 531b (same height as the first protrusion 531a) protruding upward from the radial center. When the inner plate 5 moves to the raised position, the first protrusion 531a enters the space 23H and pushes the liquid content accumulated in the space 23H radially inward of the first protrusion 531a. When the inner plate 5 moves to the raised position, the first protrusion 531a enters the opening 23F of the top wall 23B and pushes the liquid content accumulated in the opening 23F upward. Furthermore, because the upper portion 531 is circular, the space between the upper portion 531 and the applicator 23 where the liquid content accumulates can be minimized. This further reduces the amount of liquid content remaining in the container body 2. The raised position of the inner tray 5 is regulated by the upper surface 531F of the outer periphery of the upper portion 531 of the inner tray main body 53 abutting against the lower surface 23d of the lower portion 23b of the applicator 23. Simultaneously with this abutment, as described above, the lower end of the cylindrical portion 54 of the inner tray 5 is disengaged from the upper end of the rod-shaped member 6. This allows the rod-shaped member 6 to rotate freely relative to the cylindrical portion 54. The rod-shaped member 6 rotating freely relative to the cylindrical portion 54 allows the user to recognize that the dispensing of the contents has reached its end point. Portions of the inner tray 5 not described above have the same configuration as those in FIG. 1, and therefore are designated by the same reference numerals and will not be described again.

[0054] When assembling the dispensing container 100, the screw body 4 is inserted into the rotation operation unit 3 and fixed in place. Next, the inner plate 5 is inserted into the container body 2 from above. When the lower end of the inner plate 5 reaches the through-hole 22K of the container body 2, the tip of the tool is abutted against the rib 55 (see FIG. 13 ) of the inner plate 5 as described above, and the inner plate 5 is rotated to align the lower end of the inner plate 5 with the through-hole 22K, and then the lower end of the inner plate 5 is inserted into the through-hole 22K. Next, the lower end of the inner plate 5 protruding downward from the through-hole 22K is screwed onto the screw body 4, and the lower end of the container body 2 is fitted between the rotation operation unit 3 and the screw body 4 from above. Next, the rotation operation unit 3 is rotated relative to the container body 2 to move the inner plate 5 to its lowest position. After the movement, the rod-shaped member 6 is inserted through the through-hole 32K of the rotation operation unit 3, and the rod-shaped member 6 is inserted while checking the rotation position so that the main body 61 of the rod-shaped member 6 fits into the cylindrical portion 54 of the inner plate 5. The fixing portion 62 of the rod-shaped member 6 climbs over the protrusion 34 of the rotation operation unit 3, thereby fixing the rod-shaped member 6 to the rotation operation unit 3 and completing the assembly of the container body 2. After the assembly of the container body 2 is completed, the container body 2 is filled with a liquid content (such as a medicine, quasi-drug, or cosmetic preparation), and then the fitting portion 23A (see FIG. 24) of the applicator 23 is fitted into the container body 2, and then the cap 7 is fitted onto the container body 2 to complete the assembly of the propelling container 100. Note that, depending on the filling process, the applicator 23 is fitted into the container body 2 either before or after the liquid content (such as a cosmetic) is filled into the container body 2.

[0055] The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0056] In the above embodiment, the anti-rattle member 8 is configured as a sealing member (such as an O-ring or packing) that seals the gap between the inner plate body 53 and the container body 2 over the entire circumferential direction. However, an anti-rattle member that only fills a predetermined area of ​​the gap between the inner plate body 53 and the container body 2 in the circumferential direction to prevent rattle but does not seal the gap may also be used. For example, this anti-rattle member may be provided on the outer surface of the inner plate body 53 of the inner plate 5 with multiple vertical ribs spaced circumferentially apart and extending up and down that abut against the inner surface of the container body 2. Furthermore, as mentioned above, examples of sealing members include O-rings and packings, and any member that does not impair sliding properties and ensures sealing may be used. In addition to those with a circular cross-sectional shape, such as O-rings and packings, those with an arc-shaped cross-sectional shape (or a semicircular shape) may also be used, as shown in FIG. 21 . 21 is formed in a circular ring shape with an arc-shaped cross section extending in the circumferential direction, and includes a contact portion 80A that contacts the inner surface of the container body 2 at two upper and lower points, and a locking portion 80B that extends inward from the center of the contact portion 80A in the vertical direction and locks into a locking groove 5M formed in the inner plate 5, thereby fixing the contact portion 80A to the inner plate 5. In addition to fixing the contact portion 80A to the inner plate 5 by locking, the contact portion 80A may also be molded integrally with the inner plate 5 when the inner plate 5 is molded.

[0057] Furthermore, in the above embodiment, a ratchet mechanism is provided to restrict movement of the inner plate 5 only toward one end of the container body 2. However, the ratchet mechanism may be omitted, allowing the inner plate 5 to move toward both one end and the other end of the container body 2. In a case where the ratchet mechanism is omitted, in order to prevent the inner plate 5 from contacting the peripheral wall 22A of the container body 2 and overrunning the peripheral wall 22A when the inner plate 5 is lowered more than necessary, it is preferable to mold the container body 2 and the inner plate 5 from a hard resin, and set the thickness D1 from the lower surface 22D of the protrusion 22B to the lower end of the R portion of the peripheral wall 22A to any value in the range of 1.5 mm to 3.0 mm, and set the thickness D from the lower surface 22D of the protrusion 22B to the upper surface 22U of the peripheral wall 22A to any value in the range of 2.1 mm to 3.6 mm, as shown in FIG. By using a random PP with a flexural modulus of elasticity of 1000 MPa or less (e.g., 990 MPa) as the hard resin, the contact sound generated when the pawl portions 63C, 63C of the second ratchet teeth 63, 63 contact the arcuate surfaces 33B, 33B of the first ratchet teeth 33, 33 can be made low-pitched. By using a homogeneous PP with a flexural modulus of elasticity of 1500 MPa, which is higher than 1000 MPa, the contact sound can be made higher-pitched. Furthermore, by using polyacetal (POM) with a flexural modulus of elasticity of 2000 MPa to 3000 MPa, the contact sound can be made even higher-pitched. In this way, the pitch of the contact sound can be adjusted by selecting hard resins with different flexural moduli.

[0058] In the above embodiment, all of the components constituting the propelling container are made of synthetic resin, but some or all of the components may be made of metal material.

[0059] Furthermore, in the above embodiment, a first screw portion (female screw portion) 42N is provided on the inner surface of the tubular portion 42 over almost the entire vertical area, and a second screw portion 54N that screws into this is provided only at the lower end of the tubular portion 54, but it is also possible to provide a first screw portion (female screw portion) only at the upper end of the inner surface of the tubular portion 42, and a second screw portion that screws into this is provided over almost the entire vertical area of ​​the tubular portion 54.

[0060] In the above embodiment, the upper surface of the bottom portion 51 of the inner plate 5 is provided with a plate-like rib 55 that protrudes upward. However, as shown in FIG. 23 , the inner surface 52U of the side wall portion 52 of the inner plate 5 is provided with multiple (three in the figure) protrusions 52a, 52b, and 52c that protrude radially inward. The protrusions 52a, 52b, and 52c are semicircular in plan view and spaced apart circumferentially. Two of the protrusions 52a and 52c face each other, and the remaining protrusion 52b is located between the two protrusions 52a and 52c. The inner plate 5 is rotated using a generally cylindrical tool 83 that has recesses 83a, 83b, and 83c formed circumferentially to engage with the protrusions 52a, 52b, and 52c.

[0061] The advancing container according to the present invention is not particularly limited in its use and can be applied to solid (sticks, etc.), semi-solid (gels, creams, pastes, etc.) or liquid contents, such as lipstick, lip balm, lip gloss, lip medicines, antiperspirants, stick foundations, etc. Furthermore, by applying a ratchet mechanism that restricts movement only to one end, the container can also be suitably used for preparations that are semi-solid at room temperature and that tend to break down when advancing or retracting.

[0062] While the size of the dispenser container is not specifically regulated, for items that users often carry with them, such as lipstick and lip balm, the container needs to be as compact as possible while still being easy to assemble. Furthermore, smooth sliding and airtightness are particularly important when used by users. Based on this, it is preferable that the inner diameter of the dispenser container (container body 2) be approximately 8 to 30 mm, the length of the inner plate in the sliding direction (the sliding length of inner plate body 5) be 20 to 50 mm, and the volume of contents held in the container body be approximately 1.5 to 5 g. Furthermore, the sliding length of inner plate body 5 per one rotation of the rotary operating unit 3 can be set to any value within the range of 1 mm to 10 mm. [Explanation of symbols]

[0063] 1...Dispensing container, 2...Container body, 3...Rotation operation portion, 4...Screw body, 5...Inner plate body, 5M...Engagement groove, 6...Rod-shaped member, 7...Cap, 8...Anti-rattle material (sealing member), 21...Main body portion, 21B...Upper end surface, 21K...Opening, 21T...Protrusion portion, 22...Lower portion, 22A...Peripheral wall, 22B...Protrusion portion, 22D...Lower surface, 22K...Through hole, 22M...Groove, 22U...Upper surface, 22a...Circular portion, 22b...Flat portion, 22c...Circular portion, 23...Applicator portion, 23A...Fitting portion, 23B...Ceiling wall portion, 23C...Outer periphery Edge, 23D...Bottom surface, 23E...Top surface, 23F...Opening, 23G...Skirt part, 23H...Opening, 23T...Protrusion part, 23a...Mating body part, 23b...Bottom part, 23d...Bottom face, 31...Thin wall part, 31A...Outer surface, 31T...Protrusion, 32...Body part, 32 A...Inner surface, 32B...Peripheral wall, 32K...Through hole, 32T...Protrusion, 32b...Bottom surface on the outer circumferential side, 32c...Inner surface on the lower end side, 33A...Flat surface, 33B...Circular surface, 34...Protrusion, 41...Bottom, 41K...Through hole, 42...Cylinder part, 42N...First screw part, 43...Top end portion, 43A...flat portion, 43B...arc portion, 44...cylindrical portion, 44A...outer surface, 51...bottom, 52...side wall portion, 52A...recess, 52U...inner surface, 53...center tray main body, 53A...upper portion, 53B...lower portion, 53C...recess, 53D...protruding portion, 53E...outer rim, 54...cylindrical portion, 54A...straight portion, 54B...arc portion, 54C...upper end portion, 54D...arc portion, 54E, 54F...cylindrical portion inner surface, 54N...second screw portion, 54T...protrusion, 55...rib, 55A, 55B...side surface, 61...main body portion, 61A...straight portion , 61B... arc portion, 62... fixing portion, 62A... convex portion, 63A... base portion, 63B... arc portion, 63C... claw portion, 63R... arc surface, 63S... stopper surface, 71... top plate portion, 72... cylindrical portion, 72A... recessed portion, 73... sealing portion, 80... sealing member, 80A... abutment portion, 80B... locking portion, 81... first space, 82... second space, 83... tool, 531... upper side portion, 531a... first protrusion portion, 531b... second protrusion portion, 531F... upper surface, 532... lower side portion, 532A... recessed portion, D1, D2... thickness, R... rotation direction

Claims

1. The container comprises a cylindrical container body having an opening at one end, a cylindrical rotation operation part attached to the other end of the container body so as to be relatively rotatable, a cylindrical screw body fixed within the rotation operation part and having a first screw part formed on its inner surface, and a center plate body inserted into the container body so as not to be rotatable, and threadedly engaged with the first screw part of the screw body so as to be movable in the axial direction; The inner tray body includes an inner tray body having a bottom portion for receiving the contents contained in the container body, and a cylindrical portion having a second screw portion on an outer surface thereof extending from the bottom portion of the inner tray body to the other end side and screwed into the first screw portion, A dispensing container characterized by comprising a rod-shaped member attached to the rotation operating portion, inserted into the cylindrical portion and engaged so as to prevent rotation, and a rattle prevention material attached to the inner tray body to prevent the inner tray body from rattling relative to the container body.

2. 2. The dispenser container according to claim 1, wherein the rattle prevention member is a sealing member provided around the entire outer periphery of the gap between the inner tray body and the container body.

3. A dispensing container as described in claim 1 or 2, characterized in that when the inner tray body moves toward one end of the container body, the engagement between the cylindrical portion and the rod-shaped member is released, allowing the rod-shaped member to rotate freely relative to the cylindrical portion.

4. A dispensing container as described in any one of claims 1 to 3, characterized in that it is equipped with a one-way rotation mechanism that restricts the rotation direction of the rotation operating part to movement of the inner tray body only toward one end of the container body.

5. The one-way rotation mechanism is a ratchet mechanism having a first ratchet tooth on the rotating side provided on the inner surface of the rotation operating part, and a second ratchet tooth on the fixed side configured to be movable by rotating the rotation operating part in one direction and to engage with the first ratchet tooth to prevent movement by rotating the rotation operating part in the other direction, characterized in that the second ratchet tooth is integrally formed on the rod-shaped member.

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