Conveyor

Abstract

To reduce the hanging margin compared to a structure suspended by wires and hooks. The conveying device (1) includes a suspending jig (6) for suspending an object (10) to be conveyed. The suspending jig (6) has an insertion hole (71) into which a suspending ring (12) provided on a top surface (11A) of the object (10) is inserted, and a pin member (8) inserted into the suspending ring (12) inserted into the insertion hole (71).

Description

[Technical Field]

[0001] The present disclosure relates to a conveying device that lifts and conveys an object to be conveyed. [Background technology]

[0002] Conventionally, when a relatively tall and heavy piece of equipment, such as a distribution board, is carried indoors and installed, a conveying device that lifts and transports the equipment is used. Regarding this type of conveying device, Patent Document 1 discloses a structure in which an object to be transported is suspended by a wire and a hook. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-63094 Summary of the Invention [Problem to be solved by the invention]

[0004] However, as with the conventional technology described above, the structure in which the transported object is suspended by wires and hooks requires a large hanging margin, so there are cases in which the height of the entrance door and ceiling are insufficient and the transport device cannot be used.

[0005] An aspect of the present disclosure aims to provide a conveying device that can reduce the hanging margin compared to a structure in which an object to be conveyed is suspended by a wire and a hook. [Means for solving the problem]

[0006] In order to solve the above problem, a conveying device according to one aspect of the present disclosure includes a main body having an upper frame that can be raised and lowered, and a suspension jig that is attached to the upper frame and suspends an object to be conveyed. The suspension jig has an insertion section into which a suspension ring attached to the upper part of the object to be conveyed is inserted, and a pin member that is inserted into the suspension ring that is inserted into the insertion section. [Effects of the Invention]

[0007] According to one aspect of the present disclosure, the hanging margin can be reduced compared to a structure in which the object to be transported is suspended by a wire and a hook. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 2 is a perspective view showing a state in which the transport device according to the embodiment is in use. [Figure 2] 2 is a perspective view showing the object to be conveyed shown in FIG. 1. [Figure 3] FIG. 2 is a perspective view showing the transport device. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] FIG. 2 is a plan view showing the transport device. [Figure 7] 4 is a perspective view showing a state in which the front side of the conveying device shown in FIG. 3 is open. FIG. [Figure 8] 3 is a plan view showing a suspension jig provided in the transport device and a jig mounting plate to which the suspension jig is attached. FIG. [Figure 9] 9 is an enlarged plan view of the suspension jig shown in FIG. 8. FIG. [Figure 10] 9 is a side view showing the suspension jig and the jig mounting plate shown in FIG. 8. FIG. [Figure 11] FIG. 10 is a plan view showing a modified example of the suspension jig. [Figure 12] FIG. 10 is a plan view showing another modified example of the suspension jig. DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment of the present disclosure will be described below. Note that the following description is an example of a conveying device according to the present disclosure, and the technical scope of the present disclosure is not limited to the illustrated example.

[0010] [Overview of the transport device] First, an overview of the conveying device 1 according to this embodiment will be described. Fig. 1 is a perspective view showing the conveying device 1 according to this embodiment in use. Fig. 2 is a perspective view showing an object 10 to be conveyed shown in Fig. 1.

[0011] 1 and 2, the conveying device 1 is a gate-type transfer jig that lifts up an object 10 to be conveyed and conveys it while floating above the floor (ground). The conveying device 1 is used, for example, to carry the object 10 into a room or the like and install it.

[0012] The object 10 to be transported may be a device such as a distribution board or a control panel. The object 10 to be transported has a housing 11 that houses electric power equipment or the like. An inverted U-shaped hanging ring 12 is provided at or near each corner of the top surface 11A of the housing 11. Note that the type of object 10 to be transported is not limited to equipment such as a distribution board. The transport device 1 can lift and transport any object that is provided with the hanging ring 12.

[0013] The transport device 1 has an upper frame 4 that is provided so as to be able to rise and fall, and a hanging jig 6 for suspending the object 10 to be transported is provided on this upper frame 4. As will be described later, the hanging jig 6 has a latch structure in which a pin member 8 is inserted into a hanging ring 12 of the object 10 to suspend the object 10 to be transported (see FIG. 8). Therefore, the transport device 1 can reduce the hanging allowance compared to a conventional structure in which the object 10 to be transported is suspended by a wire and a hook.

[0014] In the following description, as shown in Figures 1 and 2, the height direction of the conveying device 1 (height direction of the object 10 to be conveyed) may be referred to as the up-down direction, the longitudinal direction of the conveying device 1 as viewed from the up-down direction (depth direction of the object 10 to be conveyed) may be referred to as the front-to-back direction, and the direction perpendicular to the up-down direction and the front-to-back direction (width direction of the object 10 to be conveyed) may be referred to as the left-to-right direction.

[0015] [Configuration of the transport device] Next, a configuration example of the conveying device 1 according to this embodiment will be described. Fig. 3 is a perspective view showing the conveying device 1, Fig. 4 is a front view showing the conveying device 1, Fig. 5 is a side view showing the conveying device 1, and Fig. 6 is a plan view showing the conveying device 1.

[0016] 3 to 6, the transport device 1 includes a gate-shaped (rectangular box-shaped) main body 2 that houses the object 10 to be transported inside, and a hanging jig 6 that is provided on the top of the main body 2 and hangs the object 10 to be transported. In this embodiment, four hanging jigs 6 are provided on the top of the main body 2, corresponding to the number of hanging rings 12 of the object 10 to be transported.

[0017] (Main body) The main body 2 has a lower frame (lower main body) 3 with casters 36 on the underside, an upper frame (upper main body) 4 arranged above the lower frame 3, and a lifting unit 5 provided between the lower frame 3 and the upper frame 4. The basic framework of the lower frame 3 and the upper frame 4 is made of, for example, a combination of aluminum and iron.

[0018] The lower frame 3 has lower support columns 31 arranged at each of the four corners of the lower frame 3, lower frame joints 32 arranged at the front (front face) and rear (back face) sides of the lower frame 3 and connecting the lower support columns 31 in the left-right direction, and lower reinforcing beams 33 arranged on both the left and right sides of the lower frame 3 and connecting the lower support columns 31 in the front-to-rear direction. Each of the lower frame joints 32 is provided with a handle 34 for an operator to grasp.

[0019] In this embodiment, the lower support columns 31 are provided in pairs, two at each corner of the lower frame 3. The pair of lower support columns 31 are arranged parallel to each other in the front-to-rear direction. The upper ends of the pair of lower support columns 31 are connected to the lifting unit 5. The lower ends of the pair of lower support columns 31 are connected to a connecting plate 35. Casters 36 are provided on the underside of the connecting plate 35.

[0020] The upper frame 4 has upper support columns 41 arranged at each of the four corners of the upper frame 4, upper frame joints 42 arranged at the front and rear of the upper frame 4 and connecting the upper support columns 41 in the left-right direction, and upper reinforcing beams 43 arranged on both the left and right sides of the upper frame 4 and connecting the upper support columns 41 in the front-to-rear direction. The upper frame 4 also has top plates 44 connected to the upper ends of the upper support columns 41.

[0021] Similar to the lower support columns 31, the upper support columns 41 are provided in pairs, two at each corner of the upper frame 4. The pair of upper support columns 41 are arranged parallel to each other in the front-to-rear direction. The pair of lower support columns 31 and the pair of upper support columns 41 are arranged in the vertical direction so that their central axes coincide with each other. The lower ends of the pair of upper support columns 41 are connected to the lifting unit 5. The upper ends of the pair of upper support columns 41 are connected to the top plate 44.

[0022] Top plate 44 is provided substantially horizontally so as to be parallel to top surface 11A of transport object 10. Top plate 44 has a trapezoidal top frame 45 and a jig mounting plate (jig mounting portion) 46 provided on top frame 45.

[0023] The top frame 45 has a pair of main frames 45A connected to the upper ends of the upper support columns 41, arranged parallel to each other and extending in the front-to-rear direction, and an auxiliary frame 45B connecting the pair of main frames 45A in the left-to-right direction. Jig mounting plates 46 for mounting the jig plates 7 of the suspension jig 6 are provided substantially horizontally on both sides of the top frame 45 in the front-to-rear direction.

[0024] The jig mounting plate 46 has a pair of openings 47 aligned in the left-right direction, and a plurality of positioning holes 48 for positioning the jig plate 7 (see FIG. 6). The jig plate 7 is mounted on each of the openings 47.

[0025] The opening 47 is formed through the jig mounting plate 46 in the thickness direction. The opening 47 has a convex shape in a plan view and includes a first opening 47A located on the jig plate 7 side and a second opening 47B continuous with the first opening 47A. In a plan view, the opening width of the second opening 47B in a direction (front-rear direction) perpendicular to the insertion direction (left-right direction) in which the pin member 8 is inserted into the jig plate 7 is smaller than that of the first opening 47A. The second opening 47B is located on the side of the jig plate 7 where the pin member 8 is inserted, and is formed with an opening width sufficient for an operator to insert their hand. Therefore, the opening area of ​​the opening 47 can be minimized to maintain the strength of the jig mounting plate 46, while ensuring space for manually inserting the pin member 8 into the hanging ring 12 of the transport target object 10.

[0026] The plurality of positioning holes 48 are formed on both sides of the first opening 47A of the opening 47 in the front-rear direction, and are arranged in a row along the first opening 47A. Positioning pins (positioning protrusions) 73 protruding from the underside of the jig plate 7 are inserted into the plurality of positioning holes 48 (see FIG. 10). By inserting the positioning pins 73 into some of the plurality of positioning holes 48, the jig plate 7 is positioned relative to the jig mounting plate 46.

[0027] The lifting unit 5 is a jack-up mechanism that raises and lowers the upper frame 4 relative to the lower frame 3. The lifting unit 5 is provided between a pair of lower supports 31 and a pair of upper supports 41. In other words, the lifting unit 5 is provided in the middle of the supports of the main body 2, which are made up of the lower supports 31 and the upper supports 41.

[0028] The lifting unit 5 includes a jack unit 51 that raises and lowers the upper frame 4, and a pair of guide rods 52 that are arranged on both sides of the jack unit 51 in the front-to-rear direction. The guide rods 52 guide the upper frame 4 in the up-and-down direction when the upper frame 4 is raised and lowered relative to the lower frame 3.

[0029] In this embodiment, two lifting units 5 arranged in the front-to-rear direction are connected to each other by a chain 54 covered with a chain cover 53, and these two lifting units 5 are interlocked. Therefore, for example, by having two workers simultaneously operate lifting rotation handles 55 provided on each side of the main body 2, one on each side, the upper frame 4 can be raised or lowered.

[0030] Fig. 7 is a perspective view showing the conveying device 1 shown in Fig. 3 with its front side open. As shown in Fig. 7, the main body 2 is configured so that its front and rear sides can be opened. Specifically, the lower frame joint 32 is fixed to the lower support column 31 by bolt B and is detachable from the lower support column 31. Similarly, the upper frame joint 42 is fixed to the upper support column 41 by bolt B and is detachable from the upper support column 41.

[0031] Therefore, for example, by removing the lower frame joint 32 and the upper frame joint 42 on the front side and opening the front side, the conveying device 1 can be moved over the object to be conveyed 10, and the object to be conveyed 10 can be stored inside the conveying device 1.

[0032] (hanging jig) Fig. 8 is a plan view showing the suspension jig 6 provided in the transport device 1 and a jig mounting plate 46 to which the suspension jig 6 is attached. Fig. 9 is an enlarged plan view showing the suspension jig 6 shown in Fig. 8. Fig. 10 is a side view showing the suspension jig 6 and the jig mounting plate 46 shown in Fig. 8.

[0033] As shown in Figures 8 to 10, the hanging jig 6 has a jig plate 7 in which an insertion hole (insertion portion) 71 is formed, into which the hanging ring 12 of the transported object 10 is inserted, and a pin member 8 that is inserted into the hanging ring 12 inserted into the insertion hole 71.

[0034] The jig plate 7 is a plate-like member that is rectangular in plan view and has a longitudinal direction. The jig plate 7 is installed over the opening 47 (first opening 47A) of the jig mounting plate 46 with its longitudinal direction aligned with the front-rear direction.

[0035] The jig plate 7 has an insertion hole 71 formed to penetrate the jig plate 7 in its thickness direction (vertical direction). A hanging ring 12 is inserted into this insertion hole 71 from the underside of the jig plate 7. The jig plate 7 also has an insertion hole 72 into which a pin member 8 is inserted. The insertion hole 72 is formed to penetrate the jig plate 7 in the left-right direction. The insertion hole 71 and the insertion hole 72 are mutually connected, and their linear directions are perpendicular to each other.

[0036] Furthermore, the jig plate 7 has a pair of positioning pins 73 on both sides in the front-rear direction (the longitudinal direction of the jig plate 7). The positioning pins 73 protrude from the lower surface side of the jig plate 7 and can be inserted into the positioning holes 48 of the jig mounting plate 46.

[0037] Furthermore, the jig plate 7 is provided on its upper surface with a foldable handle 74 and a hook 75 that are used when transporting and attaching the jig plate 7. In this embodiment, the insertion hole 71, the foldable handle 74, and the hook 75 are arranged in this order from one end (front end) to the other end (rear end) in the longitudinal direction (front-rear direction) of the jig plate 7.

[0038] The pin member 8 is a rod member that is inserted into the hanging ring 12 of the object 10 to be transported that has been inserted into the insertion hole 71. The pin member 8 has a head 81 and a shaft portion 82 that has a smaller diameter than the head 81. The pin member 8 may have a screw thread at the tip portion 82A of the shaft portion 82 that screws into the insertion hole 72. This makes it possible to prevent the pin member 8 from coming out of the insertion hole 72.

[0039] The suspension jig 6 may also include a flexible string-like fall prevention member 9 to prevent the pin member 8 from falling (see FIG. 6). The fall prevention member 9 is made of, for example, a wire or the like, and has one end connected to the head 81 of the pin member 8 and the other end connected to the top frame 45. This makes it possible to prevent the pin member 8 from falling even if the pin member 8 comes out of the insertion hole 72.

[0040] Here, the jig plate 7 is detachably attached to the jig mounting plate 46 (upper frame 4) so ​​that the mounting position of the jig plate 7 can be changed and the jig plate 7 can be replaced according to the dimensions of the transport object 10. In other words, the jig plate 7 has an attachment structure.

[0041] As described above, the jig mounting plate 46 has a plurality of positioning holes 48 arranged in the left-right direction on both sides of the opening 47, and the positioning pins 73 are inserted into some of these positioning holes 48. This makes it possible to change the mounting position of the jig mounting plate 46 in the left-right direction according to the width dimension (left-right dimension) of the transport object 10.

[0042] Furthermore, for the hanging jig 6, multiple types of jig plates 7 are prepared, each with a different arrangement position of the insertion holes 71 in the front-to-rear direction (the longitudinal direction of the jig plate 7) (see FIGS. 11 and 12). Therefore, depending on the depth dimension (dimension in the front-to-rear direction) of the transport object 10, the jig plate 7 can be replaced with one that matches the depth dimension.

[0043] In this way, in the transport device 1, the attachment position of the jig plate 7 can be changed and the jig plate 7 can be replaced according to the width and depth dimensions of the object 10 to be transported.

[0044] This makes it possible to suspend objects 10 of various sizes by the suspension jig 6, and to use a single main body 2 to transport objects 10 of different sizes.

[0045] 10, the positioning pin 73 may be configured to fit loosely into the positioning hole 48. In other words, the diameter of the positioning pin 73 may be smaller than the diameter of the positioning hole 48, and there may be play (gap) between the positioning pin 73 and the positioning hole 48.

[0046] This allows the jig plate 7 to move in the radial direction of the positioning hole 48 while the positioning pin 73 is inserted into the positioning hole 48, making it easier to insert the hanging ring 12 of the transported object 10 into the insertion hole 71.

[0047] [Example of use of conveying equipment] Next, we will explain an example of how to use the conveying device 1. When conveying the object 10 to be conveyed using the conveying device 1, the worker attaches the jig plate 7 that matches the depth dimension of the object 10 to the jig mounting plate 46. At this time, the positioning pins 73 of the jig plate 7 are inserted into the positioning holes 48 that match the width dimension of the object 10 to be conveyed.

[0048] Next, the lower frame joint 32 and the upper frame joint 42 on the front side of the conveying device 1 are removed to open the front side of the conveying device 1 (see FIG. 7).

[0049] Next, with the front side open, the transport device 1 is moved above the object 10 to be transported, and the insertion hole 71 of the jig plate 7 is positioned above the hanging ring 12 of the object 10 to be transported.

[0050] Next, the lifting rotary handle 55 is operated to lower the upper frame 4, and the hanging ring 12 is inserted into the insertion hole 71. At this time, because there is play (gap) between the positioning pin 73 of the jig plate 7 and the positioning hole 48 of the jig mounting plate 46, the jig plate 7 can move in the radial direction of the positioning hole 48. Therefore, as the upper frame 4 is lowered, the hanging ring 12 of the transported object 10 comes into contact with the jig plate 7, causing the jig plate 7 to move in the radial direction, making it easier to insert the hanging ring 12 into the insertion hole 71.

[0051] Next, with the hanging ring 12 inserted into the insertion hole 71, the pin member 8 is inserted into the insertion hole 72 of the jig plate 7. At this time, the jig mounting plate 46 has an opening 47 that is convex in plan view and has a second opening 47B on the side of the jig plate 7 where the pin member 8 is inserted, making it easier to insert the pin member 8 into the insertion hole 72. Furthermore, the tip 82A of the pin member 8 is screwed into the insertion hole 72, making it difficult for the pin member 8 to come out of the insertion hole 72.

[0052] Next, the lower frame joint 32 and the upper frame joint 42 are attached to the front side of the conveying device 1. As a result, the object 10 to be conveyed is accommodated inside the conveying device 1.

[0053] Next, the lifting rotary handle 55 is operated to raise the upper frame 4, and the object to be transported 10 is suspended. At this time, the weight of the object to be transported 10 is applied to the jig plate 7, and the jig plate 7 is pressed against the jig mounting plate 46, thereby preventing the jig plate 7 from shifting position during suspension. Furthermore, because the object to be transported 10 is suspended by inserting the pin members 8 into the suspension rings 12 of the object to be transported 10, the suspension allowance can be made smaller than in conventional structures in which the object to be transported 10 is suspended by wires and hooks. This allows the object to be transported safely by the transport device 1 while being suspended above the floor (ground).

[0054] [Effects of the transport device] As described above, the transport device 1 according to this embodiment includes a main body 2 having an upper frame 4 that can be raised and lowered, and a hanging jig 6 that is provided on the upper frame 4 and hangs the object 10 to be transported. The hanging jig 6 has an insertion hole 71 into which a hanging ring 12 provided on the top surface 11A of the object 10 to be transported is inserted, and a pin member 8 that is inserted into the hanging ring 12 inserted into the insertion hole 71.

[0055] The transport device 1 includes a suspension jig 6 that suspends the transport object 10 by inserting a pin member 8 into a suspension ring 12 of the transport object 10. Therefore, according to this embodiment, the suspension allowance can be made smaller than in the conventional structure in which the transport object is suspended by a wire and a hook.

[0056] [Modification] Fig. 11 is a plan view showing a modified example of the suspension jig 6. Fig. 12 is a plan view showing another modified example of the suspension jig 6. As shown in Figs. 11 and 12, the suspension jig 6 allows the attachment position of the jig plate 7 relative to the jig mounting plate 46 to be changed depending on the width dimension (left-right dimension) of the transport object 10. In addition, multiple types of jig plates 7 are prepared, each with a different arrangement position of the insertion holes 71 in the longitudinal direction (front-rear direction) of the jig plate 7, and the jig plate 7 can be replaced with a jig plate 7 that matches the depth dimension (front-rear dimension) of the transport object 10.

[0057] In this way, the hanging jig 6 allows the mounting position of the jig plate 7 to be changed and the jig plate 7 to be replaced depending on the width and depth dimensions of the object to be transported 10, so that objects to be transported 10 of different dimensions can be suspended by the hanging jig 6 and transported by the transport device 1.

[0058] 〔summary〕 The conveying device according to aspect 1 of the present disclosure comprises a main body having an upper frame that can be raised and lowered, and a suspension jig that is attached to the upper frame and suspends an object to be conveyed, the suspension jig having an insertion portion (insertion hole 71) into which a suspension ring attached to the upper portion of the object to be conveyed is inserted, and a pin member that is inserted into the suspension ring inserted into the insertion portion.

[0059] According to the above configuration, the object to be transported is suspended by inserting a pin member into the suspension ring of the object to be transported, thereby making it possible to reduce the suspension allowance compared to conventional structures in which the object to be transported is suspended using a wire and hook. In a conveying device according to aspect 2 of the present disclosure, in aspect 1, the suspension jig may have a jig plate in which the insertion portion is formed, and the jig plate may be detachably attached to the upper frame.

[0060] According to this configuration, the jig plate can be replaced in accordance with the dimensions of the object to be conveyed. In a conveying device according to aspect 3 of the present disclosure, in aspect 2, the upper frame may have a jig mounting portion having a plurality of positioning holes formed therein for positioning the jig plate, and the jig plate may have positioning protrusions that are inserted into some of the plurality of positioning holes.

[0061] According to the above configuration, the mounting position of the hanging jig can be changed in accordance with the dimensions of the object to be transported. In the conveyance device according to a fourth aspect of the present disclosure, in the third aspect, the positioning protrusion may be loosely fitted into the positioning hole.

[0062] In this configuration, there is a clearance (gap) between the positioning protrusion and the positioning hole, so that the jig plate can move in the radial direction of the positioning hole while the positioning protrusion is inserted into the positioning hole. Therefore, this configuration makes it easy to insert the hanging ring of the transported object into the insertion part. In a conveying device according to aspect 5 of the present disclosure, in any of aspects 2 to 4, the jig plate may have an insertion hole into which the pin member is inserted, and the pin member may have a screw thread at the tip of the pin member that screws into the insertion hole.

[0063] According to this configuration, it is possible to prevent the pin member from coming out of the insertion hole. In a conveying device according to aspect 6 of the present disclosure, in aspect 3, the jig mounting portion has an opening on the side where the pin member is inserted into the jig plate, and the opening includes a first opening located on the jig plate side and a second opening continuous with the first opening, and the opening width of the opening in a direction perpendicular to the insertion direction in which the pin member is inserted into the jig plate in a planar view may be smaller for the second opening than for the first opening.

[0064] According to the above configuration, the jig mounting portion has an opening that is convex in plan view, for example, so that the opening area can be made as small as possible to maintain the strength of the jig mounting portion while ensuring space for manually inserting the pin member into the hanging ring of the object to be transported.

[0065] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in the embodiments are also included in the technical scope of the present invention. Furthermore, new technical features can be formed by combining the technical means disclosed in the embodiments. [Explanation of symbols]

[0066] 1:Transportation device 2: Main unit 4: Upper frame 6: Hanging jig 7: Jig plate 8: Pin material 10:Transported object 12: Hanging ring 46: Jig mounting plate (jig mounting part) 47: Opening 47A: 1st opening 47B: Second opening 48: Positioning hole 71: Insertion hole (insertion part) 72: Insertion hole 73: Positioning pin (positioning protrusion) 82A: Tip of pin member

Claims

1. a main body having an upper frame that can be raised and lowered; a suspension jig that is provided on the upper frame and that suspends an object to be transported; Equipped with The suspension jig is an insertion section into which a hanging ring provided on an upper portion of the object to be transported is inserted; a pin member inserted into the hanging ring inserted into the insertion portion; A conveying device comprising:

2. the suspension jig has a jig plate in which the insertion portion is formed, The transport device according to claim 1 , wherein the jig plate is detachably attached to the upper frame.

3. the upper frame has a jig mounting portion in which a plurality of positioning holes for positioning the jig plate are formed, The transport device according to claim 2 , wherein the jig plate has positioning protrusions that are inserted into some of the positioning holes.

4. The transport device according to claim 3 , wherein the positioning protrusion is loosely fitted into the positioning hole.

5. the jig plate has an insertion hole into which the pin member is inserted, The conveying device according to claim 2 , wherein the pin member has a thread at a tip end thereof that screws into the insertion hole.

6. the jig attachment portion has an opening on a side of the jig plate where the pin member is inserted, the opening includes a first opening located on the jig plate side and a second opening continuous with the first opening, The conveying device according to claim 3 , wherein the opening width of the second opening in a direction perpendicular to the insertion direction in which the pin member is inserted into the jig plate in a plan view is smaller than that of the first opening.

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