Positioning device

Abstract

To provide a positioning device with a further suitable configuration that can press an object from multiple directions.SOLUTION: A positioning device includes a frame shape body having a central region on which an object can be placed. The frame shape body includes a plurality of bar members arranged to surround the central region and a plurality of pushers attached to the bar members. At least two of the plurality of pushers are arranged facing each other through the central region. The plurality of bar members can be displaced in conjunction with each other and in a direction to approach or separate the object placed on the central region.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a position adjustment device. [Background technology]

[0002] 2. Description of the Related Art Conventionally, in a manufacturing process of a product or a conveying process including packaging, a position adjustment device for arranging a product at a desired position has been used. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 6-196595 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional position adjustment devices are provided with a mechanism capable of pressing an object from multiple directions in order to move the object to be adjusted to a desired position. For example, in the position adjustment device of Patent Document 1, the object is positioned by displacing two positioning rollers by movable members attached to each of the positioning rollers. The inventors of the present application have earnestly examined whether there is still room for development of such conventional position adjustment devices. As a result, they have found that there is still room for development of position adjustment devices that displace multiple positioning rollers by multiple movable members.

[0005] The present invention has been made in view of the above problems. That is, a main object of the present invention is to provide a position adjustment device having a more suitable structure as a position adjustment device that enables position adjustment from multiple directions. [Means for solving the problem]

[0006] The inventors of the present application attempted to solve the above problems by taking a new approach rather than simply extending the conventional technology, and as a result, they came up with the invention of a position adjustment device that achieves the above-mentioned main object.

[0007] The position adjustment device according to the present invention comprises: A frame-shaped body having a central region on which an object can be placed, the frame-shaped body includes a plurality of bar members arranged to surround the central region, and a plurality of pushers attached to the bar members, At least two of the plurality of pushers are disposed opposite each other across the central region, The plurality of bar members are displaceable in conjunction with one another and are displaceable in a direction toward or away from the object placed in the central region. Effect of the Invention

[0008] The position adjustment device according to the present invention has a new structure that has not been seen before in that multiple bar members to which at least two pushers arranged opposite each other are attached are configured to move in conjunction with each other. This configuration makes it possible to synchronize the movements of the multiple pushers, thereby making it possible to suppress deviations in the displacement of each pusher. This makes it possible to suppress variations in the position of the object caused by deviations in the displacement of the pushers. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view showing a schematic diagram of a position adjustment device according to one embodiment of the present invention. [Diagram 2] FIG. 2 is a top view illustrating a schematic diagram of a position adjustment device according to an embodiment of the present invention. [Diagram 3] FIG. 3 is a perspective view illustrating a state after the position adjustment device illustrated in FIG. 1 is operated. [Figure 4] FIG. 4 is a top view illustrating a schematic state of the position adjustment device illustrated in FIG. 3 after it has been operated. [Diagram 5]FIG. 5 is an exploded perspective view illustrating a position adjustment device according to one embodiment of the present invention. [Figure 6] FIG. 6 is a perspective view showing a frame according to an embodiment of the present invention. [Figure 7] FIG. 7 is a perspective view showing a schematic view of a support frame and a frame-shaped body according to one embodiment of the present invention. [Figure 8A] FIG. 8A is a perspective view that shows typically a support frame according to one embodiment of the present invention. [Figure 8B] FIG. 8B is a top view diagrammatically showing a support frame according to one embodiment of the present invention. [Figure 9] FIG. 9 is a perspective exploded view showing a frame-shaped body according to one embodiment of the present invention. [Figure 10A] FIG. 10A is a perspective view that illustrates a reference pusher according to one embodiment of the present invention. [Figure 10B] FIG. 10B is a schematic top view of a reference pusher according to one embodiment of the present invention. [Figure 10C] FIG. 10C is a side view that illustrates a schematic diagram of a reference pusher according to one embodiment of the present invention. [Figure 10D] FIG. 10D is a side view diagrammatically illustrating a reference pusher according to another embodiment of the present invention. [Figure 11] FIG. 11 is a perspective exploded view illustrating a reference pusher according to an embodiment of the present invention. [Figure 12A] FIG. 12A is a perspective view that shows a schematic diagram of a driven pusher according to one embodiment of the present invention. [Figure 12B] FIG. 12B is a schematic top view of a driven pusher according to one embodiment of the present invention. [Figure 12C] FIG. 12C is a side view that illustrates a schematic diagram of a driven pusher according to one embodiment of the present invention. [Figure 13] FIG. 13 is a side view diagrammatically illustrating a driven pusher that contacts an object according to an embodiment of the present invention. [Figure 14]FIG. 14 is a perspective exploded view that illustrates a schematic diagram of a driven pusher according to an embodiment of the present invention. [Figure 15A] FIG. 15A is a perspective view illustrating a connecting member according to one embodiment of the present invention. [Figure 15B] FIG. 15B is a schematic top view of a reference pusher according to one embodiment of the present invention. [Figure 15C] FIG. 15C is a side view that illustrates a schematic diagram of a reference pusher according to one embodiment of the present invention. [Figure 16] FIG. 16 is a perspective view showing a schematic diagram of a drive device according to an embodiment of the present invention. [Figure 17] FIG. 17 is a perspective view illustrating the driving device illustrated in FIG. 16 after it has been actuated. [Figure 18] FIG. 18 is a perspective view that typically illustrates the position adjustment device before operation and on which an object is placed. [Figure 19] FIG. 19 is a top view diagrammatically illustrating the position adjustment device on which an object is placed before operation. [Figure 20] FIG. 20 is a perspective view that illustrates the position adjustment device after operation on which an object is placed. [Figure 21] FIG. 21 is a top view diagrammatically illustrating the position adjustment device after operation on which an object is placed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The following describes the embodiments of the present invention in detail. Please note that the applicant provides the following description and examples so that those skilled in the art can fully understand the present invention, and that they do not intend to limit the subject matter described in the claims. In other words, the present invention is not particularly limited to the preferred embodiments described below, and can be modified and implemented as appropriate within the scope of its purpose. In addition, in consideration of the explanation or ease of understanding of the main points, the present invention may be shown in separate embodiments and examples for convenience, but partial replacement and / or combination of the configurations shown in different embodiments is possible. In the description of such embodiments, duplicated explanations of substantially identical matters may be omitted, and only the differences may be described. In particular, similar effects due to similar configurations may not be mentioned sequentially for each embodiment.

[0011] In addition, in the description of the present specification, references to directions or orientations are merely for convenience of description and are not intended to limit the scope of the present invention unless otherwise expressly described. For example, relative terms such as "outside (or outer, external or outer circumference)" and "inside (or inner, internal or inner circumference)" and their derivative terms should be understood to refer to the direction as described or illustrated. Similarly, "on" an element includes not only the case of contacting the upper surface of the element, but also the case of not contacting the upper surface of the element. In other words, "on" an element includes not only the position above the element, i.e., the position above the element through another object, or the position above the element with a space therebetween, but also the position directly above the element. In addition, "on" does not necessarily mean the upper side in the vertical direction. "On" merely indicates the relative positional relationship of a certain element. In other words, unless otherwise expressly described, the invention does not need to be limited to only a specific direction, orientation, shape, etc. The same applies to terms such as "provided," "disposed," "connected," and "attached," and their derived terms, and unless otherwise explicitly stated, they are not limited to a direct manner, but may also refer to a manner in which other elements, such as intervening objects, are involved.

[0012] The various numerical ranges mentioned herein are intended to include the lower and upper numerical limits themselves unless otherwise specified, and the term "about" means that the range may include a variation or difference of a few percent, for example, ±10%.

[0013] As used herein, "vertical" and "approximately vertical" do not necessarily mean completely "vertical" and include aspects that are slightly deviated from the completely vertical (e.g., within a range of ±10°, e.g., ±5°, from the completely vertical).

[0014] Furthermore, in this specification, "substantially parallel" does not necessarily mean completely "parallel," but includes a state in which it is slightly deviated from that (for example, within a range of ±10° from completely parallel, such as a range of ±5°).

[0015] In this specification, the term "top view" or "top view shape" refers to a sketch of the object viewed from above along a direction substantially perpendicular to the extension direction of the frame-shaped body. In addition, the term "side view" refers to a shape viewed from the extension direction of the frame-shaped body.

[0016] The "upper and lower directions" and "left and right directions" used directly or indirectly in this specification correspond to the upper and lower directions and left and right directions in the drawings, respectively. Unless otherwise specified, the same reference numerals or symbols indicate the same members or parts or the same meanings. In a preferred embodiment, the vertical downward direction (i.e., the direction in which gravity acts) can be considered to correspond to the "downward direction," and the opposite direction to the "upward direction."

[0017] 1 and 2 are respectively a schematic perspective view and a schematic top view showing a position adjustment device before operation according to an embodiment of the present disclosure. Also, FIG. 3 and FIG. 4 are respectively a schematic perspective view and a schematic top view showing a position adjustment device after operation according to an embodiment of the present disclosure. FIG. 5 is a perspective exploded view showing a position adjustment device according to an embodiment of the present disclosure. The position adjustment device 1 may include a frame-shaped body 20 having a position adjustment mechanism for adjusting the position of an object, a support frame body 15 supporting the frame-shaped body 20, a drive device 30 for driving the position adjustment mechanism of the frame-shaped body 20, and a base 10 supporting the frame-shaped body 20, the support frame body 15, and the drive device 30.

[0018] (Mounting) FIG. 6 is a perspective view of the pedestal 10 in an embodiment of the present disclosure. The structure of the pedestal 10 shown in FIG. 6 is merely an example, and is not particularly limited as long as the support frame 15 and the driving device 30 described later can be attached. For example, the pedestal 10 may include an arm unit 12 to which the support frame 15 (see FIG. 5) can be attached, and a driving device attachment unit 14 to which the driving device 30 can be attached. The arm unit 12 may support the support frame 15 and a frame-shaped body attached on the support frame 15. Preferably, the arm unit 12 is configured to be able to hold a state in which the central region 50 of the frame-shaped body 20 attached on the support frame 15 extends in the horizontal direction. In addition, the arm unit 12 and the driving device attachment unit 14 may be configured to be able to rise and fall along a direction Y (for example, a vertical direction) perpendicular to the extension direction of the central region 50. By raising and lowering both the arm portion 12 and the drive device attachment portion 14, the frame-shaped body 20 for performing position adjustment, as well as the support frame body 15 and the drive device 30 supporting the frame-shaped body 20, can be raised and lowered. This makes it possible to adjust the height of the frame-shaped body 20 so that a pusher of the frame-shaped body 20, which will be described later, can be appropriately abutted against an object.

[0019] Although not shown, the position adjustment device 1 may further include a pedestal for placing an object in the central region 50. For example, the pedestal may have a structure capable of ascending and descending along the Y direction. This allows the object placed on the pedestal to be ascended and descended. For example, it is possible to adjust the height of the object relative to the frame-shaped body 20 so that the pusher of the frame-shaped body 20 described later can suitably abut against the object. Such a structure may be particularly useful when stacking the objects whose positions have been adjusted. For example, it is possible to stack a new object on the object whose position has been adjusted, adjust the height of the object to an appropriate position by ascending and descending the pedestal, and then adjust the position of the stacked objects, thereby stacking the object whose position has been adjusted on the pedestal.

[0020] (Support frame) FIG. 7 is an exploded perspective view showing the support frame 15 and the frame-shaped body 20 according to an embodiment of the present disclosure. FIG. 8A and FIG. 8B are a perspective view and a top view, respectively, that typically show the support frame 15 according to an embodiment of the present disclosure. The support frame 15 has an opening region 18 at the center. An object may be movable through the opening region 18 in a direction Y (e.g., vertical direction) that is substantially perpendicular to the extension direction (e.g., horizontal direction) of the opening region 18. The support frame 15 may be fixed to the arm portion 12 of the frame using a fixing member such as a nut. The support frame 15 also has a shaft insertion hole 16 through which a shaft portion 252 of a connecting member 250, which is a component of the frame-shaped body 20 described later, can be inserted. As shown in the figure, the shaft portion 252 of the connecting member 250 may be inserted into the shaft insertion hole 16 of the support frame 15 and fixed by a fixing member such as a nut, thereby attaching the support frame 15 and the frame-shaped body 20.

[0021] (Frame-shaped body) FIG. 9 is a perspective exploded view of a frame-shaped body according to an embodiment of the present disclosure. The frame-shaped body 20 includes at least a central region 50 on which an object to be adjusted in position is placed, a plurality of bar members 220 arranged to surround the central region 50, and a plurality of pushers 230, 240 attached to the bar members 220. Two adjacent bar members 220 may be connected to each other. More specifically, the bar members 220 may be connected to each other by a connecting member 250 arranged between the ends 221 of the adjacent bar members 220. Hereinafter, the extension direction of the central region 50 is referred to as the ZX plane direction, and the direction perpendicular to the extension direction of the central region 50 is referred to as the Y direction. Preferably, the ZX plane direction is a horizontal direction, and the Y direction is a vertical direction.

[0022] The "central region of the frame-shaped body" is a region that is surrounded by the bar members 220 and the pushers 230, 240 that constitute the frame-shaped body 20 and penetrates in the Y direction. The object is placed in the central region 50, and its position is adjusted within the central region 50. Therefore, the central region 50 may also be referred to as an "object placement possible region", a "position adjustment region", or the like. Within the central region 50, the object is moved and / or rotated on the same plane by being pressed by the pushers, and is adjusted to a desired position and / or a desired posture.

[0023] (Bar member) The bar member 220 is disposed so as to surround the central region 50. More specifically, the bar member 220 may be an elongated member extending along the outer contour of the central region 50. The bar member 220 has an elongated shape (or a rod-like shape or a strip-like shape) that is parallel to the extension direction of the central region 50 and extends in a single direction. The bar member 220 may extend linearly, but does not necessarily have to be uniformly linear, and may have, for example, a bent or curved portion. The bar member 220 supports a pusher that can press an object placed on the central region 50. Therefore, the bar member 220 can also be called a "pusher support member" or the like.

[0024] In the position adjustment device of the present disclosure, the bar members 220 are displaceable in conjunction with each other. More specifically, the bar members 220 are displaceable in conjunction with each other, and are displaceable in a direction approaching or moving away from the center of the frame-shaped body 20. Hereinafter, the position of the bar member 220 farthest from the center of the frame-shaped body 20 is referred to as a first position (see FIG. 2), and the position of the bar member closest to the center of the frame-shaped body 20 is referred to as a second position (see FIG. 4). When the bar members 220 are in the first position, the area of ​​the central region 50 is maximum. On the other hand, when the bar members 220 are in the second position, the area of ​​the central region 50 is minimum. Each of the bar members 220 may be slidably moved between a first position distal to the frame-shaped body 20 and a second position proximal to the frame-shaped body 20 in conjunction with each other. That is, the displacement of the multiple bar members 220 may be synchronized with one another, thereby allowing the multiple bar members 220 surrounding the central region 50 to be displaced simultaneously.

[0025] (Pusher) As shown in FIG. 9, the position adjustment device 1 of the present disclosure includes a plurality of pushers 230, 240 attached to a bar member 220. The pushers are configured to be able to push an object placed in the central region 50. In the position adjustment device 1 of the present disclosure, the plurality of bar members 220 and the plurality of pushers 230, 240 attached to the bar member 220 can be displaced in a direction approaching the object in cooperation with each other. This allows the central region 50 to be reduced in size and the object to be moved to a desired position. More specifically, the pushers 230, 240 are displaced in a direction approaching the object placed in the central region 50 in accordance with the displacement of the bar member 220, and press the outer periphery of the object. This pressing causes the object to be moved horizontally to a desired position on the same plane as the central region 50.

[0026] At least two of the multiple pushers 230, 240 are arranged to face each other across the central region 50. Such two pushers may be attached to each of the two bar members 220 arranged to face each other across the central region 50. These pushers are displaced toward the central region 50 so as to approach each other as the bar members 220 are displaced. By arranging at least two pushers at positions facing each other, it is possible to press an object from multiple directions so as to sandwich the object. This makes it possible to adjust the position of the object between the two pushers in the pressing directions of the pushers.

[0027] In another embodiment, the position adjustment device 1 may further include a pusher capable of pushing the object in a direction different from the two pushers in addition to the two pushers facing each other. For example, the position adjustment device 1 may include a pusher on each of the multiple bar members 220. This allows the object to be pushed from more directions, so that the position of the object can be adjusted more precisely.

[0028] As described above, each of the multiple pushers is attached to the multiple bar members 220. Therefore, as the bar member 220 is displaced, the pushers 230, 240 attached to the bar member 220 are also displaced. In the position adjustment device 1 disclosed herein, the multiple bar members 220 are configured to be displaceable in conjunction with each other, so that the multiple pushers 230, 240 can also be displaced in conjunction with each other. In other words, the multiple pushers 230, 240 can be displaced in synchronization with each other, rather than being displaced independently of each other.

[0029] In one embodiment of the present disclosure, the position adjustment device 1 may include at least two types of pushers 230, 240 having mutually different structures. In other words, in the position adjustment device 1 of the present disclosure, the position of the object may be performed in the central region 50 of the frame-shaped body 20 by pressing the object with a plurality of pushers including the different types of pushers 230, 240.

[0030] For example, the multiple pushers may include a reference pusher 230 and a driven pusher 240. The reference pusher 230 includes a roller 232 that is fixed so as to be displaceable only in association with the bar member 220. On the other hand, in the driven pusher 240, the roller 242 is elastically supported by an elastic member 246, so that the roller 242 is displaceable independently of the bar member 220. The position adjustment device of the present disclosure may include multiple pushers including the reference pusher 230 and the driven pusher 240. The configurations of the reference pusher 230 and the driven pusher 240 will be described in more detail below.

[0031] (Reference pusher) 10A to 10C are respectively a perspective view, a top view, and a side view that typically show a reference pusher according to an embodiment of the present disclosure. Also, FIG. 11 is a perspective exploded view of the reference pusher shown in FIGS. 10A to 10C. As shown in the figures, the reference pusher 230 includes a roller 232 that can contact the outer periphery of an object, and a roller support part 235 that supports the roller 232. The roller support part 235 may be attached to the bar member 220 and protrude toward the central region 50 of the frame-shaped body 20. The roller 232 may be attached to an end of the roller support part 232 that protrudes into the central region 50. As a result, the roller 232 is located closer to the inner periphery of the frame-shaped body 20 than the bar member 220. With this configuration, when the pusher 230 is displaced toward the center of the frame-shaped body 20 in conjunction with the displacement of the bar member 220, the reference pusher 230 can abut against an object placed in the central region 50 and press the object in the displacement direction of the bar member 220.

[0032] The roller 232 may be fixed to the roller support 235 by a fixing member such as a nut. Similarly, the roller support 235 may be fixed to the bar member 220 by a fixing member such as a nut. In short, the roller 232 is fixed to the bar member 220 via the roller support 235. In this way, the roller 232 of the reference pusher 230 is fixed so as not to move independently with respect to the bar member 220. In other words, the reference pusher 230 may include a roller 232 that is movable only by the displacement of the bar member 220. Therefore, the reference pusher 230 can also be called a "fixed pusher" or the like.

[0033] In the reference pusher 230, the roller 232 is fixed so as not to move independently of the bar member 220, and therefore the displacement of the roller 232 stops when the bar member 220 stops. This allows the stop position of the roller 232 at the position where the bar member 220 stops to be the reference position of the object. In other words, the stop position of the roller 232 when the bar member 220 is in the second position closest to the center of the frame-shaped body 20 becomes the reference position of the object. For example, when the bar member 220 moves in a direction approaching the object placed in the central region 50, the amount of displacement of the bar member 220 is controlled so that the roller 232 of the reference pusher 230 stops at a desired position, thereby determining the reference position of the object. In the position adjustment device 1 of the present disclosure, at least one of the two pushers facing each other via the central region 50 is the reference pusher, so that the object can be pressed toward the reference pusher 230 by the other pusher. With this configuration, the object can be stably aligned at a desired position.

[0034] The reference pusher 230 preferably includes at least two rollers 232. More specifically, the reference pusher 230 may include at least two rollers 232 located at the same height in the Y direction. That is, the at least two rollers 232 provided in the reference pusher 230 may be arranged in parallel along the extension direction of the central region. For example, the reference roller may include two rollers arranged in parallel as shown in FIG. 10A. An object that comes into contact with the reference pusher 230 can be supported at two points by coming into contact with the two rollers 232. Such two-point support determines the orientation of the side of the object, so that the linearity of the object can be maintained. Therefore, it is possible to more suitably maintain the posture of the object that has received a pressing force (or a pressing force) from a pusher arranged opposite the reference pusher 230.

[0035] (Driven pusher) 12A to 12C are respectively a perspective view, a top view, and a side view that typically show a driven pusher according to an embodiment of the present disclosure. Also, FIG. 14 is a perspective exploded view of the reference pusher shown in FIGS. 12A to 12C. The driven pusher 240 differs from the above-mentioned reference pusher 230 in that an elastic member 246 is included in a roller support portion 245 that supports the roller 242. That is, the roller 242 of the driven pusher is elastically supported with respect to the bar member 220 via the elastic member 246 provided in the roller support portion 245. The elastic member 246 is located between the roller 242 and the bar member 220. 13, the roller support portion 245 may include a first roller support portion 245A to which the roller 242 is attached and a second roller support portion 245B that connects the first roller support portion 245A to the bar member 220, and an elastic member 246 may be provided on a shaft 248 that connects the first roller support portion 245A to the second roller support portion 245B (see FIG. 14). The elastic member 246 is not particularly limited as long as it is a member that can absorb the pressing force acting on the roller 242 from the object. For example, a spring such as a coil spring, a rubber material, or the like may be used as the elastic member 246.

[0036] When a pressing force is applied to the elastic member 246 via the roller, the elastic member 246 can be compressed and elastically deformed. The elastic deformation allows the roller 242 to be displaced toward the bar member 220. More specifically, when a pressing force is applied from an object to the roller 242, the elastic member 246 provided between the roller 242 and the bar member 220 is compressed, and the roller 242 can be displaced toward the bar member 220. For example, the first roller support part 245A may be supported by the second roller support part 245B so as to be rotatable about the fulcrum 247 as an axis. According to this configuration, when the bar member is further displaced toward the second position in a state in which the roller 242 is in contact with the object, the elastic member is compressed and the first roller support part can be rotated toward the bar member 220 about the fulcrum 247 as an axis. As a result, the roller 242 is displaced so as to be pushed toward the bar member.

[0037] In this way, the roller 242 can be pushed into the bar member 220 by the elastic deformation 246, and the driven pusher can also be called a "movable pusher" or a "push-in pusher". According to the above-mentioned structure, even when the driven pusher 240 comes into contact with the object due to the displacement of the bar member 220, the elastic member 246 can be interposed to reduce the impact on the object. That is, the elastic member 246 provided on the roller support portion 245 can function as a buffer material. In addition, in the driven pusher 240, when a pressing force is applied from the object to the driven pusher 240, the elastic member 246 is compressed, and the roller 242 can be displaced toward the bar member 220 together with the first roller support portion 245A. This can suppress the occurrence of variation in the adjustment position of the object due to the external dimensional tolerance of the object.

[0038] For example, by setting the amount of displacement of the driven pusher 240 due to the displacement of the bar member 220 to the minimum value of the external dimension tolerance, the object can be moved sufficiently to a desired position even if the external dimension of the object is small. Furthermore, even if the external dimension of the object is large, the amount of displacement of the driven pusher 240 can be made smaller than the amount of displacement of the bar member 220 by compressing the elastic member 246, so that the position can be suitably adjusted without applying excessive pressing force to the object. This makes it possible to suitably prevent the object from being damaged by excessive pressing force from the driven pusher 246.

[0039] In a preferred embodiment, the reference pusher 230 and the driven pusher 240 may face each other via the central region 50. In other words, of the two pushers facing each other, one may be the reference pusher 230 and the other may be the driven pusher 240. An object placed in the central region 50 may be positioned at a desired position in the central region 50 by being pressed from both sides of the object so as to be sandwiched between the reference pusher 230 and the driven pusher 240.

[0040] In a preferred embodiment, the driven pusher 240 includes one roller 242, and the reference pusher 230 attached at a position opposite to the driven pusher 240 includes two rollers 232. The rollers 232, 242 of the reference pusher 230 and the driven pusher 240 are located at the same height in the Y direction. In a state in which the position of the object is adjusted, it is preferable that the object abuts against at least both of the two rollers 232 of the reference pusher 230, and more preferable that the object abuts against the rollers 232, 242 of all the pushers 230, 240. This makes it possible to suitably determine the position and orientation of at least one side of the outer periphery of the object.

[0041] Furthermore, each of the reference pusher 230 and the driven pusher 240 may be disposed so that the pressing force applied to the object by the roller 242 of the driven pusher 240 acts toward the gap between the two rollers 232 of the reference pusher 230. This allows the position adjustment to be performed so that the object is sandwiched between the two opposing pushers, and makes it possible to prevent undesired rotation of the object due to the pressing force of one of the pushers.

[0042] The pressing force acting on the object from the driven pusher 240 may be set to be smaller than the pressing force acting on the object from the reference pusher 230 disposed opposite the driven pusher 240. For example, the pressing force of the driven pusher 240 may be controlled to be lower than the pressing force of the reference pusher 230 by pressure control or torque control. This reduces the pressing force that may act on the reference pusher 230 from the object, and prevents the reference pusher 230 from moving undesirably due to the pressing force. Therefore, it is possible to reduce variation in the position of the object adjusted based on the roller position of the reference pusher 230.

[0043] In one embodiment, the position adjustment device may include a plurality of reference pushers 230. The plurality of reference pushers 230 may be attached to different bar members 220. The plurality of bar members 220 including the reference pushers 230 may extend in directions intersecting each other. This means that each of the plurality of reference pushers 230 is attached to a bar member 220 extending in a different direction from each other. This allows the object to come into contact with the plurality of reference pushers 230 displaced in a direction approaching the object from a plurality of directions. As described above, in the position adjustment device of the present disclosure, the object can be adjusted in position with the stop position of the reference pusher 230 displaced in a direction approaching the center of the frame-shaped body 20 as the reference position. Therefore, when determining the position of the object, by providing two reference pushers 230, it is possible to determine the position of the object based on at least two sides of the outer periphery of the object. This makes it possible to adjust the position of the object in the central region 50 more precisely.

[0044] For example, as shown in FIG. 9, the position adjustment device may include a reference pusher 230 attached to each of two bar members 220 extending in directions intersecting perpendicularly to each other, and a driven pusher 240 attached to a position opposite each of the reference pushers 230. With this configuration, the object can be pressed from four directions and its position adjusted. Furthermore, by providing the reference pusher 230 on each of the two bar members 220 intersecting approximately perpendicularly to each other, it is possible to adjust the position of the object based on two sides of the outer periphery of the object that extend in directions intersecting perpendicularly to each other. Furthermore, by attaching the driven pusher 240 to a position opposite the reference pusher 230, the position of the object can be adjusted more precisely on the reference pusher 230 side, while the driven pusher 240 side can accommodate the external dimensional tolerance of the object. Therefore, with this structure, it is possible to accurately adjust the position of an object having variations in external dimensions.

[0045] The rollers provided in the pusher have a roller surface that contacts the object. The roller surface may be a curved surface such as an arc surface. For example, the rollers may be substantially spherical. Alternatively, as shown in Figures 10C, 12C, and 13, the rollers 232, 242 may have a substantially cylindrical or columnar member at one end of the shaft portion, with a roller surface 233, 243 that is a curved surface in a top view.

[0046] In one embodiment, the roller surface may be inclined with respect to the Y direction in a side view. More specifically, the roller surface may be inclined so as to gradually approach the central region from the lower end to the upper end of the roller. That is, in a side view, the lower region of the roller surface facing the central region may be located closer to the outer periphery of the frame-shaped body than the upper region of the roller surface. In other words, in a side view, the upper end side region of the roller surface may be located closer to the inner periphery of the frame-shaped body than the lower end side region of the roller surface. With this structure, the object whose position is adjusted in the central region may not come into contact with the lower region of the roller surface, but may be able to abut only with the upper region. This makes it possible to further reduce the contact area between the object and the roller. For example, the roller may be attached to the roller support so that the shaft portion is inclined. Alternatively, the shaft portion may extend along the Y direction, while only the roller surface may be inclined, and for example, a roller having a substantially conical shape may be used.

[0047] For example, in an assembly process of an object or a packaging process for transportation, in order to adjust the position of an object placed on an arbitrary object, a position adjustment device may be used with the object placed on the member. Alternatively, in order to stack a plurality of objects while adjusting their positions, a position adjustment device may be used for the objects 80 in a stacked state. FIG. 13 is a side view showing a contact between the stacked objects 80 and the driven pusher 240. Although the driven pusher 240 is shown as an example in FIG. 13, the reference pusher may have a similar structure. As shown in the figure, the position adjustment device of the present disclosure may be used to perform position adjustment of the object 80 stacked on an arbitrary object, or the object 80a placed on the topmost layer among the plurality of objects 80 stacked. In such a case, it is necessary to move only the object 80a to be adjusted in position to the desired position by the pusher 240. In the position adjustment device of the present disclosure, the pusher 240 includes a roller surface 243 that is inclined in side view, so that only an upper region 243a of the roller surface located closer to the inner periphery of the frame-shaped body can come into contact with the object 80a whose position is to be adjusted. Specifically, the roller surface 243 that is inclined in side view can selectively come into contact only with the object whose position is to be adjusted, while remaining in a non-contact state with the article 80b located below the object.

[0048] In the above embodiment, the roller surface 243, which is inclined in a side view, is inclined so as to move away from the article 80b located below the object 80a to be adjusted in position. This makes it possible to preferably prevent the article 80b located below the object 80a from coming into contact with the roller 242, and the article 80b other than the object 80a from moving undesirably. For example, if the article 80b located below the object 80a has a width dimension larger than that of the object 80a, when the article 80b enters the lower end of the roller 242, the article 80b may be caught in the roller, causing a malfunction of the position adjustment device. According to the structure of the present disclosure described above, the roller 242 is fixed so as to be inclined in a direction away from the central region from the upper end to the lower end, so that the lower end of the roller 242 and the article 80b located below the object 80a can be separated more widely. Therefore, it is possible to more effectively avoid unintended contact between the roller 242 and an object 80b other than the object 80a, and the occurrence of the object 80b getting caught in the roller due to such contact. By using the inclined roller surface 243, it is possible to reduce the contact area of ​​the roller 242 with the object 80a. Therefore, even if the thickness of the object 80a is small, it is possible to selectively adjust the position of only the object 80a, and therefore the above-mentioned configuration may be particularly useful. According to the position adjustment device of the present disclosure, it is possible to preferably adjust the position of an object having a small thickness, for example, from about 0.1 mm to about 10 mm.

[0049] In a preferred embodiment, at least the roller 242 of the driven pusher 240 has a roller surface 243 inclined with respect to the Y direction. For example, while the roller 242 of the driven pusher 240 has an inclined roller surface 243, the roller surface 233 of the roller 232 of the reference pusher 230 may extend substantially parallel to the Y direction (i.e., substantially perpendicular to the ZX plane, which is the extension direction of the central region), as shown in FIG. 10D. This makes it possible to appropriately abut the object against the roller 232 of the reference pusher 230 after position adjustment while suppressing the occurrence of biting in the roller 242 of the driven pusher 240, and to accurately position the object at a desired position. Alternatively, the rollers of all the pushers may have an inclined roller surface. This structure may be more preferred in a mode in which the topmost layer of a plurality of stacked objects is positioned, since it can appropriately suppress the occurrence of biting in the rollers of each pusher.

[0050] The inclination angle of the inclined roller surface 233, 243 is not particularly limited as long as it can abut against the object only at the upper end region of the roller. For example, the angle α (see Fig. 10C and Fig. 12C) between the Y direction (i.e., the direction perpendicular to the extension direction of the central region) and the roller surface in a side view may be greater than 0 degrees and less than 60 degrees, greater than 1 degree and less than 50 degrees, or greater than 3 degrees and less than 45 degrees. By making the inclination angle α of the roller surface within the above-mentioned range, it is possible to abut only against the uppermost object among multiple objects stacked on top of each other, and to appropriately adjust the position, while maintaining a non-contact state with the objects in the lower layers. The inclination angles of the roller surfaces of the rollers provided in multiple pushers may be the same, or each pusher may have a different inclination angle.

[0051] (Connecting parts) As shown in FIG. 7, the bar members 220 may be connected to each other via a connecting member 250. FIGS. 15A to 15C are a perspective view, a top view, and a side view, respectively, that show a connecting member 250 according to an embodiment of the present disclosure. The connecting member 250 may connect the ends 221 of the bar members 220 adjacent to each other (see FIG. 9). In other words, the bar members 220 adjacent to each other may be connected end-to-end to each other via the connecting member 250. The framework of a frame-shaped body may be formed by connecting all the bar members 220 in an annular shape by the connecting member 250. By connecting the bar members 220 in this manner, the bar members 220 can be suitably interlocked with each other, and the pushers 230, 240 attached to the bar members 220 can also be suitably interlocked with each other. As a result, the displacements of the pushers 230, 240 are synchronized with each other, and a suitable position adjustment device that enables position adjustment with less variation can be provided.

[0052] As shown in FIG. 15A to FIG. 15C, the connecting member 250 includes two link portions 254 connected to two adjacent bar members 220, and an axle portion 252 provided between the two link portions 254. The axle portion 252 is located closer to the inner periphery of the frame body 20 than the link portions 254. In other words, the link portion 254 is located farther away from the central region 50 than the axle portion 252. The connecting member 250 may have the axle portion 252 inserted into the axle insertion hole 16 formed in the support frame 15 (see FIG. 7). The connecting member 250 is supported by the support frame 15 so as to be rotatable about the axle portion 252 as a rotation axis. The bar members 220 may be connected so as to be rotatable about the link portion 254 as an axis. In this structure, when the connecting member 250 rotates, the bar members 220 connected by the link portions 254 can be displaced in conjunction with each other. More specifically, since multiple bar members 220 are connected to each other via connecting members 250, when one connecting member 250 rotates, the bar members 220 and other connecting members 250 directly or indirectly connected to that connecting member 250 can all be displaced or rotated in unison (see Figures 3 and 4).

[0053] The distance from the shaft 252 of the connecting member 250 to each of the two link parts 254 can be set arbitrarily according to the moving distance of the bar member 220 connected to the connecting member 250. The "distance from the shaft 252 to the link part 254" corresponds to the distance from the center of the shaft 252 to the center of the link part 254 in a top view. For example, the longer the distance from the shaft 252 to the link part 254, the larger the amount of movement of the bar member 220 accompanying the rotation of the connecting member 250 can be. This means that the movable range of the bar member 220 and the pushers 230 and 240 can be made larger. In this way, the position adjustment device of the present disclosure can accommodate position adjustment of objects of various sizes by arbitrarily setting the distance from the shaft 252 to the link part 254 of the connecting member 250.

[0054] In addition, by making the distance from the shaft portion 252 to the link portion 254 longer, it is possible to secure a wider central area 50 before the position adjustment, and therefore it is possible to make the area in which the object before the position adjustment can be placed larger. If the central area 50 before the position adjustment is narrow, it is necessary to align the orientation of the object to a certain extent when placing the object in the central area. This issue may be particularly noticeable when adjusting the position of an object with a large external dimensional tolerance. On the other hand, if the central area 50 before the position adjustment is wide, the degree of freedom of the posture of the object that can be placed in the central area before the position adjustment increases. In the position adjustment device of the present disclosure, by arbitrarily setting the distance from the shaft portion 252 of the connecting member 250 to the link portion 254, it is possible to perform the position adjustment suitably even for an object with a large external dimensional tolerance.

[0055] In two connecting members 250 attached to both end portions 221 of one bar member 220, distances D1, D3 from the shaft portion 252 to the link portion 254 connected to the bar member 220 may be equal to each other (see FIG. 19). More specifically, distance D1 from shaft portion 252 to link portion 254 in connecting member 250 attached to one end portion 221 of bar member 220 may be equal to distance D2 from shaft portion 252 to link portion 254 in connecting member 250 attached to the other end portion 221. This makes it possible to make the movement amounts of both end portions 221 of bar member 220 the same, so that bar member 220 can be translated in a direction approaching or moving away from the object.

[0056] In one embodiment, the distances D1 and D2 from the center of the shaft portion 252 to the centers of the two link portions 254 may be equal to each other. This allows the ends 221 of the bar members 220 connected to each of the two link portions 254 to be displaced the same distance at the same speed. On the other hand, in one connecting member 250, the distances D1 and D2 from the two link portions 254 connecting each of the two bar members 220 to the shaft portion 252 may be different from each other. That is, in one connecting member 250 connecting two adjacent bar members 220, the distance D1 from the link portion 254 connecting one bar member 220 to the shaft portion 252 may be different from the distance D2 from the link portion 254 connecting the other bar member 220 to the shaft portion 252. This allows each bar member 220 to be moved by a different distance as the connecting member 250 rotates. Therefore, by arbitrarily setting the distance from shaft portion 252 of connecting member 250 to link portion 254, it is possible to adjust the positions of objects of various shapes.

[0057] (Drive device) The position adjustment device of the present disclosure further includes a drive device 30 for displacing the bar member 220 of the frame-shaped body 20. FIG. 16 and FIG. 17 are perspective views showing a drive device according to an embodiment of the present disclosure before and after operation. As shown in the figures, the drive device 30 includes a cylinder mechanism capable of reciprocating motion. More specifically, the drive device 30 may include a rod member 32 and a connection portion 34 that connects the tip of the rod member 32 to the bar member 220. The rod member 32 may be capable of advancing and retreating in the displacement direction of the bar member 220. The drive device 30 may be a device including any of various mechanisms such as an air cylinder, a hydraulic cylinder, an electric cylinder, or a combination of a motor and a ball screw or a timing belt configured to linearly reciprocate the rod member 32. The drive device 30 displaces the bar member 220 in a direction approaching or moving away from the object by the reciprocating motion of the rod member 32. 1 to 4, the driving device 30 may be connected to one of the multiple bar members 220 constituting the frame-shaped body 20. In a preferred embodiment, the bar member 220 to which the driving device 30 is attached may be a bar member 220 including a reference pusher 230.

[0058] The driving device 30 reciprocates one of the bar members 220 in a direction approaching or moving away from the object. More specifically, the driving device 30 may be capable of pressing or pulling the bar member 220 toward the rotation direction of the connecting member 250. Therefore, the extension direction of the bar member 220 and the reciprocating direction of the cylinder mechanism of the driving device 30 may cross each other obliquely. This means that the extension direction of the bar member 220 and the reciprocating direction of the cylinder mechanism of the driving device do not cross each other perpendicularly. With this structure, the driving device 30 can indirectly rotate the connecting member 250 connected to the bar member 220 by reciprocating the bar member 220. With the rotation of the connecting member 250, it is possible to displace the bar members 220 connected to each other via the connecting member 250 in a synchronized manner. In this way, by displacing one bar member 220 with the driving device 30, it is possible to displace the other multiple bar members 220 in a linked manner.

[0059] Next, the operation of the position adjustment device 1 having the above configuration will be described. FIG. 18 and FIG. 19 are respectively a perspective view and a top view showing the position adjustment device 1 before the position adjustment. As shown in the figure, the target object 80 is placed on the central region 50 with the plurality of bar members 220 in the first position. The bar members 220 connected to the driving device 30 are pressed by the driving of the driving device 30 and move toward the inner circumferential direction of the frame-shaped body. As the bar members 220 move, the connecting members 250 connected to the bar members 220 rotate, and all the bar members 220 connected by the connecting members 250 are displaced. More specifically, when the bar members 220 are pressed by the driving of the driving device 30, the connecting members 250 connected to the bar members 220 rotate around the shaft portions 252 as the rotation axis. Due to this rotation, another bar member 220 connected to the connecting members 250 is displaced. This allows the displacement of one bar member 220 by the drive device 30 to displace all of the other bar members 220 simultaneously.

[0060] In this structure, the multiple connecting members 250 located between each of the multiple bar members 220 rotate in the same rotation direction. This allows all of the multiple bar members 220 to be displaced in unison from the first position to the second position. In other words, all of the multiple bar members 220 are displaced in a direction approaching the object 80. The multiple pushers 230, 240 attached to the bar members 220 can also be displaced in unison in a direction approaching the object 80.

[0061] The multiple pushers 230, 240, which are displaced in conjunction with each other, come into contact with the outer periphery 81 of the object 80 and move the object 80 while pressing it. FIGS. 20 and 21 are a perspective view and a top view, respectively, that show the position adjustment device 1 after the position adjustment. When the multiple bar members 220 reach the second position, the object 80 may be in a state of being pressed toward the reference pusher 230 by an elastic member provided in the driven pusher 240. This allows the object 80 to be more accurately positioned at a predetermined position based on the roller of the reference pusher 230.

[0062] In a top view, the movement locus of the bar member 220 displaced between the first position and the second position may not be linear. For example, when the bar member moves from the first position (FIG. 19) to the second position (FIG. 21), each of the two ends of the bar member 220 moves from the first position to the second position by tracing an arc-shaped locus with the shaft of the connecting member 250 connected to each end as the rotation axis. In this way, the bar member 220 may not displace by tracing a linear locus, but may displace by tracing a curved trajectory. Similarly, the pushers 230, 240 fixed to the bar member 220 may also displace between the first position and the second position along an arc-shaped trajectory. The pushers 230, 240 can move the object 80 placed on the central region 50 so as to rotate it within the plane of the central region 50. In other words, when adjusting the position of the object 80, the pushers 230, 240 can press in a direction that assists in the rotation of the object 80 within the plane in which the central region 50 extends, making it possible to more suitably adjust the object to the desired posture (orientation).

[0063] In addition, by making the pushers 230, 240 displaceable from the first position to the second position by tracing an arc-shaped trajectory, the direction of the pressing force from the pushers 230, 240 to the object 80 is a direction that crosses obliquely with the extension direction of the bar member 220 to which the pushers 230, 240 are attached. Furthermore, by tracing the arc-shaped trajectory of the displacement, the direction of the pressing force acting on the object 80 can change in the process of displacement from the first position to the second position. This makes it possible to more suitably distribute the pressing force that may act on the object 80 compared to the case where the pushers 230, 240 are displaced linearly in a direction perpendicular to the extension direction of the bar member 220. Therefore, it may be possible to suitably suppress the pressing force from acting on the object 80 during the position adjustment.

[0064] In the connecting member 250 connected to each of both ends of the bar member 220, the distance D1 from the link part connected to one end to the shaft part and the distance D3 from the link part connected to the other end to the shaft part are made equal, so that the bar member 220 can be slid along the arc-shaped track while the inclination of the bar member is fixed. This makes it possible to adjust the position of the object 80 while maintaining the inclination of the pushers 230, 240 attached to the bar member 220 in a top view. In particular, in the reference pusher 230 having two or more rollers, the inclination of the object 80 is determined according to the inclination. Therefore, according to the position adjustment device of the present disclosure that allows the pusher to be displaced while maintaining the inclination, the posture of the object can be adjusted more accurately. Furthermore, the two bar members 220 having pushers facing each other through the central region 50 can be displaced from the first position to the second position while maintaining a parallel relationship with each other. The two opposing pushers approach the object while maintaining their angular relationship with each other, and can suitably guide the object to a desired position.

[0065] After the position adjustment, when the drive device 30 drives the bar member 220 in a direction to pull back, the bar member 220 is displaced from the second position to the first position in conjunction with the displacement of the bar member 220. Accordingly, the pushers 230, 240 that were in contact with the object 80 are retracted from the object 80. Since the bar members 220 are interlocked with each other, the retraction of the pushers 230, 240 can also be interlocked. Therefore, it is possible to suitably suppress the occurrence of positional deviation of the object 80 caused by a shift in the timing of the movement of some of the pushers.

[0066] As described above, according to the present disclosure, the position adjustment of the object 80 from multiple directions can be performed by one driving source. This allows the device configuration to be simpler. In addition, by using one driving source, the energy required for the operation of the device is reduced, making it possible to perform more efficient position adjustment. In addition, for example, when the movement of the pushers from multiple directions is controlled using separate driving devices, there is a risk that the movement timing and displacement amount of each pusher will vary, and the position of the object after adjustment will vary. In the position adjustment device of the present disclosure, since all position adjustments from multiple directions can be linked, the movement timing and movement amount of the multiple pushers can be suitably synchronized. This allows the position of the object to be adjusted more stably and accurately. In this way, according to the present disclosure, a more suitable position adjustment device that allows position adjustment from multiple directions is provided.

[0067] The object to be adjusted in position by the position adjustment device of the present disclosure may be various members having an outer periphery that can be abutted and pressed by the roller of the pusher. For example, the object may be a polyhedron such as a rectangular parallelepiped or a cube, or an approximately plate-shaped member. In this specification, "approximately plate-shaped" does not necessarily mean a completely flat plate, and may be, for example, a shape having a step or protrusion in a part, or a shape having a curved part in a side view. The shape of the object when viewed from above may be various shapes such as an approximately circular shape, an elliptical shape, a polygonal shape, etc., having an outer periphery that can be abutted by the roller at the second position.

[0068] The thickness of the object is not particularly limited, but may be, for example, 0.1 mm or more, 0.3 mm or more, or 0.5 mm or more. The upper limit is not particularly limited as long as the object can be moved by the pressure from the pusher.

[0069] Although the embodiment of the present invention has been described above, it is merely a typical example. The present invention is not limited to this, and those skilled in the art will easily understand that various aspects are possible without departing from the scope of the present invention.

[0070] The above effects are merely exemplary, and the present invention is not limited to the above effects, and may have additional effects.

[0071] Note that the embodiment of the present disclosure as described above includes the following preferred aspects. <1> A frame-shaped body having a central region on which an object can be placed, the frame-shaped body includes a plurality of bar members arranged to surround the central region, and a plurality of pushers attached to the bar members, At least two of the plurality of pushers are disposed opposite each other across the central region, A position adjustment device in which the multiple bar members are displaceable in conjunction with one another and can be displaced in a direction toward or away from the object placed in the central region. <2> The displacement locus of the bar member forms an arc shape. <1> A position adjustment device as described in <3> In accordance with the displacement of the bar member, the plurality of pushers are displaceable in a direction approaching or moving away from the object in a linked manner. <1> or <2> A position adjustment device as described in <4> the plurality of pushers are capable of pressing the object in accordance with the displacement of the bar member, The pressing direction obliquely intersects with the extending direction of the bar member to which the pusher is attached. <1> ~ <3> 13. A position adjustment device according to claim 12, <5> The plurality of bar members include at least one pair of bar members disposed opposite each other across the object and extending parallel to each other. <1> ~ <4> 13. A position adjustment device according to claim 12, <6> The two bar members extending parallel to each other are displaceable while maintaining a parallel relationship. <5> A position adjustment device as described in <7> the frame-shaped body further includes a plurality of connecting members attached to ends of the bar members, Among the plurality of bar members, adjacent bar members are connected to each other via the connecting member. <1> ~ <6> 13. A position adjustment device according to claim 12, <8> the connecting member includes a shaft portion and two link portions each connected to each of the two adjacent bar members; The connecting member is rotatable about the shaft portion as a rotation axis. <7> A position adjustment device as described in <9> The central region is reduced or expanded in accordance with the rotation of the connecting member. <8> A position adjustment device as described in <10> The rotation directions of the multiple connecting members are the same. <8> or <9> A position adjustment device as described in <11> a distance between the link portion and the shaft portion of the connecting member connected to one end of the bar member is equal to a distance between the link portion and the shaft portion of the connecting member connected to the other end of the bar member; <8> ~ <10> 13. A position adjustment device according to claim 12, <12> The shaft portion is located on the inner peripheral side of the frame-shaped body relative to the link portion. <8> ~ <11> 13. A position adjustment device according to claim 12, <13> The pusher includes a roller capable of contacting the object, One of the two mutually opposing pushers is a reference pusher having the fixed roller, and the other pusher is a driven pusher having the roller elastically supported by an elastic member relative to the bar member. <1> ~ <12> 13. A position adjustment device according to claim 12, <14> The roller of the driven pusher is displaceable in a direction opposite to the displacement direction of the bar member due to contraction of the elastic member. <13> A position adjustment device as described in <15> the reference pusher comprises at least two of said rollers; The at least two rollers are adjacent to each other in the extension direction of the central region. <13> or <14> A position adjustment device as described in <16> The reference pusher includes two of the reference pushers, The bar members to which the two reference pushers are attached extend in directions intersecting each other. <13> ~ <15> 13. A position adjustment device according to claim 12, <17> The roller has a roller surface capable of contacting the object, When viewed from a side, at least the roller surface of the driven pusher is inclined toward the central region from a lower end to an upper end of the roller. <13> ~ <16> 13. A position adjustment device according to claim 12, <18> Further comprising a base on which the object can be placed, The object is stacked on the base, The pusher is configured to be able to contact only the object located at the top among the stacked objects. <1> ~ <17> 13. A position adjustment device according to claim 12, <19> Further comprising a drive device connected to one of the plurality of bar members and displacing the one bar member in a direction toward or away from the object, The plurality of bar members are displaced in conjunction with the displacement of the one bar member. <1> ~ <18> 13. A position adjustment device according to claim 12, <20> the driving device includes a cylinder mechanism that presses the one bar member to which the driving device is connected, The pressing direction by the cylinder mechanism is a direction that obliquely intersects with the extension direction of the one bar member. <19> A position adjustment device as described in [Industrial Applicability]

[0072] The position adjustment device of the present disclosure can be used in various fields where an operation for adjusting the position of an object is required. [Explanation of symbols]

[0073] 1 Position adjustment device 10 Mounting stand 12 Arm section 14 Drive device mounting section 15 Support frame 16 Shaft insertion hole 18 Opening area 20 Frame-shaped body 220 Bar member 221 End of bar member 230 Standard Pusher 232 Reference Pusher Roller 233 Reference Pusher Roller Surface 234 Reference pusher shaft 235 Roller support of reference pusher 240 Driven Pusher 242 Driven pusher roller 243 Roller surface of driven pusher 243a Upper region of the roller surface 243b Lower area of ​​roller surface 244 Shaft of driven pusher 245 Roller support for driven pusher 245A First roller support of driven pusher 245B Second roller support part of driven pusher 246 Elastic Members 247 Fulcrum 248 Shaft 250 Connecting member 252 Shaft of connecting member 254 Link part of connecting member 30 Driving Device 32 Rod member 34 Connection 50 central area 80 Objects 80a Top Object 81 Outer rim

Claims

1. A frame-shaped body having a central region on which an object can be placed, the frame-shaped body includes a plurality of bar members arranged to surround the central region, and a plurality of pushers attached to the bar members, At least two of the plurality of pushers are disposed opposite each other across the central region, A position adjustment device in which the multiple bar members are displaceable in conjunction with one another and can be displaced in a direction toward or away from the object placed in the central region.

2. The position adjustment device according to claim 1 , wherein the displacement locus of the bar member forms an arc.

3. The position adjustment device according to claim 1 , wherein the plurality of pushers are displaceable in a direction approaching or moving away from the object in association with the displacement of the bar member.

4. the plurality of pushers are capable of pressing the object in accordance with the displacement of the bar member, The position adjustment device according to claim 1 , wherein the pressing direction obliquely intersects with an extending direction of the bar member to which the pusher is attached.

5. The position adjustment device according to claim 1 , wherein the plurality of bar members include at least one pair of bar members disposed opposite each other across the object and extending parallel to each other.

6. 6. The position adjustment device according to claim 5, wherein the two bar members extending parallel to each other are displaceable while maintaining a parallel relationship.

7. the frame-shaped body further includes a plurality of connecting members attached to ends of the bar members, The position adjustment device according to claim 1 , wherein adjacent bar members among the plurality of bar members are connected to each other via the connecting member.

8. the connecting member includes a shaft portion and two link portions each connected to each of the two adjacent bar members; The position adjustment device according to claim 7 , wherein the connecting member is rotatable about the shaft portion as a rotation axis.

9. The position adjustment device according to claim 8 , wherein the central region is reduced or enlarged as the connecting member rotates.

10. The position adjustment device according to claim 8 , wherein the plurality of connecting members rotate in the same direction.

11. 9. The position adjustment device according to claim 8, wherein the distance between the link portion and the shaft portion of the connecting member that connects to one end of the bar member is equal to the distance between the link portion and the shaft portion of the connecting member that connects to the other end of the bar member.

12. The position adjustment device according to claim 8 , wherein the shaft portion is located closer to an inner periphery of the frame than the link portion is.

13. The pusher includes a roller capable of contacting the object, 2. The position adjustment device according to claim 1, wherein of the two opposing pushers, one pusher is a reference pusher having the fixed roller, and the other pusher is a driven pusher having the roller elastically supported relative to the bar member via an elastic member.

14. 14. The position adjustment device according to claim 13, wherein the roller of the driven pusher is displaceable in a direction opposite to a displacement direction of the bar member by contraction of the elastic member.

15. the reference pusher comprises at least two of the rollers; The position adjustment device according to claim 13 , wherein the at least two rollers are adjacent to each other in an extension direction of the central region.

16. The reference pusher includes two reference pushers, The position adjustment device according to claim 13 , wherein the bar members to which the two reference pushers are attached extend in directions intersecting each other.

17. The roller has a roller surface capable of contacting the object, The position adjustment device according to claim 13 , wherein, in a side view, at least the roller surface of the driven pusher is inclined from a lower end to an upper end of the roller toward the central region.

18. Further comprising a base on which the object can be placed, The object is stacked on the base, The position adjustment device according to claim 1 , wherein the pusher is configured to be able to come into contact with only the uppermost object among the stacked objects.

19. The present invention further includes a drive device connected to one of the plurality of bar members and displacing the one bar member in a direction toward or away from the object, The position adjustment device according to claim 1 , wherein the plurality of bar members are displaced in conjunction with the displacement of the one bar member.

20. the driving device includes a cylinder mechanism that presses the one bar member to which the driving device is connected, 20. The position adjustment device according to claim 19, wherein a pressing direction by the cylinder mechanism is a direction that obliquely intersects with a direction in which the one bar member extends.

Images