Joining jigs and joining devices

Abstract

To provide a joining tool capable of easily adhering an adherend to a sheet-like material.SOLUTION: A joining tool 10 for placing a sheet-like adherend C on one surface side of a sheet-like material S, folding back the adherend C at an end edge portion S1 of the sheet-like material S, and bonding an end edge portion C1 of the adherend C to the other surface side of the sheet-like material S, comprises: a placement table 20 having a placing surface 21 on which the sheet-like material S is placed on top of the adherend C, and having an end edge portion 22 of the placing surface 21 formed in a shape corresponding to the end edge portion S1 of the sheet-like material S; and attachment pieces 30 which are arranged side by side along the end edge portion 22 of the placement table 20, and stick the adherend C on the sheet-like material S. A tip portion of the attachment piece 30 is rotated at the end edge portion 22 of the placing surface 21 of the placement table 20, and thereby the attachment piece can be switched between a deployed position where an adhesion surface 311 sticking the adherend C is deployed outside the end edge portion 22 of the placing surface 21 of the placement table 20 and an opposite position where the adhesion surface 311 faces the end edge portion 22 of the placing surface 21.SELECTED DRAWING: Figure 1

Description

Technical Field

[0005] , , , ,

[0004] , , , , , , , , , ,

[0003] , , ,

[0006] ,

[0001] The present invention relates to a bonding jig and a bonding device used for bonding sheet-like materials.

Background Art

[0002] As a method for bonding sheet-like materials such as fabrics, a bonding method by adhesion has been conventionally used (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] As for the bonding of sheet-like materials, for example, an adherend made of another sheet-like material is placed on the surface of one sheet-like material, the adherend is folded back to the back side of the sheet-like material along the edge of the sheet-like material, and the adherend is adhered along the edge on the back side of the sheet-like material, so that there is an application for bonding the adherend so that the sheet-like material is covered with the adherend. In the above bonding, when the entire edge of the sewn object where the adherend is folded back is linear, the folding operation can be easily performed, but when the edge of the sewn object is curved or a plurality of connected linear shapes, there is a problem that the operation of folding and adhering is very complicated and difficult, and the work burden is very large.

[0005] An object of the present invention is to facilitate the operation of folding back the adherend and adhering it along the edge of the sheet-like material. [[ID=四十二]]

Means for Solving the Problems

[0006] The present invention relates to a joining jig for which a sheet-like adherend is placed on one side of a sheet-like material, the adherend is folded back at the edge of the sheet-like material, and the edge of the adherend is bonded to the other side of the sheet-like material. A mounting base having a mounting surface on which the sheet-like material is placed on top of the object to be attached, wherein the edge of the mounting surface is formed in a shape corresponding to the edge of the sheet-like material, A plurality of attachment pieces arranged in a line along the edge of the mounting platform for attaching the object to be attached, Equipped with, The aforementioned adhesive piece can be switched between an expanded position, where the adhesive surface for attaching the object is extended outward from the edge of the mounting surface of the aforementioned mounting stand, and an opposed position, where the adhesive surface faces the edge of the aforementioned mounting surface, by rotating its tip portion at the edge of the mounting surface of the aforementioned mounting stand. There is, It comprises a rotating part having the aforementioned attachment surface and a support part that is attached to the base described above. It is characterized by the following:

[0007] Furthermore, the present invention relates to a joining device, The invention is characterized by comprising the above-mentioned joining jig and a switching mechanism for switching the plurality of attachment pieces of the joining jig from the deployed position to the opposing position. [Effects of the Invention]

[0008] According to the present invention, it is possible to simplify the process of folding the object to be adhered and bonding it along the edge of a sheet-like material. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view of a bonding device which is an embodiment of the present invention. [Figure 2] This is a perspective view of the mounting platform. [Figure 3] This is a perspective view of the mounting platform with multiple attachment pieces attached. [Figure 4] Figure 4(A) is a perspective view of multiple attached pieces, Figure 4(B) is a perspective view of each attached piece in its deployed position, and Figure 4(C) is a perspective view of each attached piece in its opposing position. [Figure 5]Figure 5(A) is a front view of multiple attached pieces, Figure 5(B) is a side view, and Figure 5(C) is a bottom view. [Figure 6] Figure 6(A) shows a comparative example where the folded portion is not thin, with the adhesive piece in the unfolded position and the adherend attached. Figure 6(B) shows the state of slack that occurs in the adherend when it is rotated to the opposite position. [Figure 7] This is a perspective view of all switching mechanisms with the joining device already installed. [Figure 8] This is a side view showing the standby state of the switching mechanism before performing a position switching operation on the attached piece. [Figure 9] This is a plan view of all installed switching mechanisms in their standby state. [Figure 10] This is a side view showing the operating state of the switching mechanism after performing a position switching operation on the attached piece. [Figure 11] This is a plan view showing the operating status of all installed switching mechanisms. [Figure 12] Figure 12(A) is a side view of the area around the attached piece during the joining operation by the joining device, and Figure 12(B) is a side view of the area around the attached piece during the joining operation following Figure 12(A). [Figure 13] Figure 13(A) is a side view of the area around the attached piece during the joining process following Figure 12(B), and Figure 13(B) is a side view of the area around the attached piece during the joining process following Figure 13(A). [Figure 14] Figure 14(A) is a side view of the area around the attached piece during the joining process following Figure 13(B), and Figure 14(B) is a side view of the area around the attached piece during the joining process following Figure 14(A). [Figure 15] Figure 15(A) is a side view of the area around the attached piece during the joining process following Figure 14(B), and Figure 15(B) is a side view of the area around the attached piece during the joining process following Figure 15(A). [Figure 16] Figure 16(A) is a plan view of the area around the mounting table during the joining operation by the joining device, and Figure 16(B) is a plan view of the area around the mounting table during the joining operation following Figure 16(A). [Figure 17]FIG. 17(A) is a plan view of the periphery of the mounting table in the joining operation following FIG. 16(B), and FIG. 17(B) is a plan view of the periphery of the mounting table in the joining operation following FIG. 17(A). [Figure 18] It is a plan view of the periphery of the mounting table in the joining operation following FIG. 17(B).

Embodiments for Carrying Out the Invention

[0010] Hereinafter, as an embodiment of the present invention, a joining device 100 used when joining an adherend C to a sheet-like material S by adhesion will be described based on the drawings. In the present embodiment, a sheet-like adherend C is disposed on one surface (referred to as the front surface) side of the sheet-like material S, and the edge C1 of the adherend C is folded back at the edge S1 of the sheet-like material S, and the edge C1 of the adherend C is adhered on the other surface (referred to as the back surface) side of the sheet-like material S. A case will be exemplified.

[0011] [Sheet-like Material and Adherend] The sheet-like material S and the adherend C will be described with reference to FIG. 17. In FIG. 17, the back surface of the sheet-like material S faces the front side of the paper surface. The sheet-like material S is overlapped with the adherend C disposed on its lower side, that is, the front surface side, and the edge C1 of the adherend C is folded back to the back surface side at the edge S1 of the sheet-like material S, and the folded edge C1 of the adherend C is adhered to the back surface side of the sheet-like material S. Thereby, the adherend C can be joined to the sheet-like material S in a state where the front surface side of the sheet-like material S is covered with the adherend C.

[0012] The edge S1 of the sheet-like material S is exemplified as having a curved shape, but it may be linear or non-linear, and for example, it may be a shape formed by connecting a plurality of straight lines having different directions. Here, the edge S1 is more specifically exemplified as having a substantially S-shaped curved shape in which the direction of the concavity and convexity changes. The adherend C is generally larger than the sheet-like material S, and the shape of the edge C1 of the adherend C approximates the shape of the edge S1 of the sheet-like material S and is slightly larger in size as a whole than the edge S1 of the sheet-like material S. The object to be joined C is a sheet body such as a thin cloth that is easy to fold. While the sheet material S is exemplified as a material with a certain degree of rigidity that allows for a certain degree of shape retention, the joining device 100 can successfully join even a thin cloth with low shape retention, like object C. Furthermore, while the sheet-like material S is exemplified as having a flat shape, it may also have a curved shape.

[0013] [Joining equipment] Figure 1 shows a perspective view of a joining device 100, which is an embodiment of the present invention. In the following explanation, the orientation of each part will be described assuming that the joining device 100 is installed on a horizontal mounting surface H. The joining device 100, as shown in the figure, includes a joining jig 10 and a plurality of switching mechanisms 50, 50A, 50B, and 50C.

[0014] [Joining fixture] The joining jig 10 includes a mounting base 20 having a mounting surface 21 on which a sheet-like material S is placed with the surface of the sheet-like material S facing downwards, and the edge portion 22 of the mounting surface 21 is formed in a shape corresponding to the edge portion S1 of the sheet-like material S (for example, a matching shape), a plurality of attachment pieces 30 arranged along the edge portion 22 of the mounting base 20 for attaching the workpiece C, and a support base 40 for setting the mounting base 20 on the mounting surface H so that the mounting surface 21 is generally horizontal.

[0015] [Joining fixture: mounting platform] Figure 2 shows a perspective view of the mounting base 20, and Figure 3 shows a perspective view of the mounting base 20 with multiple attachment pieces 30 attached. The mounting base 20 is a columnar body whose plan view shape is the same as the mounting surface 21, and is provided with a pair of arms 25 on both sides, and the pair of arms 25 support both ends of the suspension body 26 facing the edge 22 of the mounting surface 21 along its entire length. The suspension body 26 holds one end of a plurality of rubber cords 11, which will be described later.

[0016] The mounting surface 21 consists of a horizontal, flat surface, but if the sheet material S has a curved shape, it may have a corresponding curved shape. The edge portion 22 of the mounting surface 21 has a shape that matches the shape of the edge portion S1 of the sheet material S that is joined to the object C when viewed from above. During the joining process, the sheet material S is placed with the edge portion S1 overlapping the edge portion 22 of the mounting surface 21. Since the sheet material S is placed on top of the object C, the edge portion 22 of the mounting surface 21 may not be directly visible, but since multiple adhesive pieces 30 are arranged along the edge portion 22 of the mounting surface 21, a step is formed along the edge portion 22, making it possible to accurately align the sheet material S with the edge portion 22 of the mounting surface 21.

[0017] The above-described mounting base 20 can be formed using a 3D printer based on data obtained by, for example, preparing planar shape data or 3D data of a sheet-like material S, or by measuring it using 3D measurement, in order to realize the mounting surface 21 of the above shape.

[0018] The pair of arm portions 25 extend from both ends of the edge portion 22 of the mounting surface 21 in a direction along the mounting surface 21 and away from the edge portion 22. The pair of arm sections 25 support one end and the other end of the suspension body 26 at their extended ends.

[0019] The suspension body 26 is shaped to follow the edge 22 of the mounting surface 21 and is an elongated body that is somewhat larger than the edge 22. Multiple attachment pieces 30 are arranged in a line along the edge 22 of the mounting surface 21, and one end of a rubber cord 11 (shown as a dotted line in Figure 3) serving as a biasing means is connected to the tip of each piece. The suspension body 26 holds the other end of the rubber cord 11 extending from the tip of each attachment piece 30 in a direction away from the edge 22, thereby applying tension to each attachment piece 30 toward the suspension body 26.

[0020] [Joining fixture: Adhesive piece] Figure 4(A) is a perspective view of the multiple adhesive pieces 30, Figure 4(B) is a perspective view of each adhesive piece 30 in the deployed position, and Figure 4(C) is a perspective view of each adhesive piece 30 in the opposing position. Additionally, Figure 5(A) is a front view of the multiple adhesive pieces 30, Figure 5(B) is a side view, and Figure 5(C) is a bottom view.

[0021] Each adhesive piece 30 comprises a rotating part 31 having an adhesive surface 311 for adhering the object C, and a support part 37 attached to the mounting base 20. The support parts 37 of multiple adhesive pieces 30 are connected and arranged in a line along the edge 22 of the mounting surface 21, and are attached to the mounting surface 23 of the mounting base 20. The mounting surface 23 is a surface adjacent to the mounting surface 21 via the edge 22, and is a curved surface oriented vertically opposite to the aforementioned suspension body 26. Furthermore, it is preferable to narrow the width of each attachment piece 30 and increase the number of attachment pieces 30 arranged in a line along the edge portion 22 of the mounting surface 21. This is because the narrower the width of the attachment pieces 30 and the greater the number of pieces, the easier it becomes to arrange the attachment pieces 30 to closely resemble the shape of the edge portion 22.

[0022] The support portion 37 of the attachment piece 30 is a rectangular flat plate that is elongated in the vertical direction, and a groove-shaped flexible portion 38 is formed along the vertical direction at the boundary with the support portion 37 of the adjacent attachment piece 30. The multiple attachment pieces 30 are all integrally formed from a resin material that has flexibility and elasticity, such as polypropylene, and the flexible portion 38 is made thinner in a vertical groove shape along the vertical direction, which provides more significant flexibility than the surrounding area. Due to the flexible portion 38, the multiple attachment pieces 30 can be attached to the mounting surface 23 in an orderly manner following the curved edge portion 22.

[0023] Reference numeral 39 denotes multiple mounting holes that pass through multiple support portions 37 which are integrally arranged along the edge portion 22. Multiple attachment pieces 30 can be attached together to the mounting surface 23 by screws (not shown) inserted through each mounting hole 39. Below the mounting surface 23, a groove 24 is provided along the lower end of the mounting surface 23, allowing the lower end of the support portion 37 of each attachment piece 30 to be attached to the mounting surface 23 to be inserted. As a result, each attachment piece 30 will be positioned more precisely along the mounting surface 23, and each rotating portion 31 will be positioned more precisely along the edge portion 22 of the mounting surface 21. It will also be possible to make the height of each attachment piece 30 the same.

[0024] The upper end of the support portion 37 is provided with a rotating portion 31 via a bent portion 36, which is a groove-shaped constriction along the horizontal direction. As described above, the attachment piece 30 is integrally formed from a flexible and elastic resin material, and the bent portion 36 is made thinner in a transverse groove shape along the horizontal direction, resulting in greater flexibility than the surrounding area. Due to the elasticity of the bent portion 36, when no external force is applied, the rotating portion 31 and the support portion 37 are aligned in a straight line along the vertical direction (neutral position).

[0025] The rotating portion 31 tapers from its lower end on the support portion 37 side to its upper end, with a connecting hole 313 formed at its upper end for holding one end of the rubber cord 11. Furthermore, the rotating part 31 is substantially flat, with the plane facing the mounting surface 23 of the mounting base 20 being the adhesion surface 311 for attaching the object to be attached C, and the plane on the opposite side being the pressure-receiving surface 312 that is pressed by the switching mechanism 50, 50A, 50B, or 50C, which will be described later.

[0026] More precisely, the rotating part 31 has a step 314 formed near its tip, and the side of the support part 37 that is closer to the step 314 is the adhesion surface 311 to which the object C is attached. The step 314 serves as a reference line for aligning the tip of the edge portion C1 of the object C during joining. As will be described later, when joining, the adhesive surface 311 is given adhesive properties to adhere to the object C by applying double-sided tape or adhesive. The adhesive properties of the adhesive surface 311 can be achieved by any method as long as the object C can be separated with a certain amount of force. For example, static electricity may be used to adhere the object C.

[0027] The rotating part 31 can be rotated at least 90 degrees forward and backward from the neutral position by the bending part 36. Furthermore, the rotating part 31 can be switched between an deployed position in which the attachment surface 311 is outside the edge 22 of the mounting surface 21 of the mounting base 20 and the rotating part 31 is deployed in a direction away from the edge 22 (the tip of the rotating part 31 is facing the suspension body 26: Figure 4(B)) and an opposing position in which the attachment surface 311 is facing the edge 22 of the mounting surface 21 (the attachment surface 311 is facing downwards: Figure 4(C)). Furthermore, as mentioned above, the tip of the rotating part 31 is always subjected to tension toward the suspension body 26 by the rubber cord 11, so it is normally maintained in the deployed position.

[0028] Each attachment piece 30 is attached to the mounting surface 23 of the mounting base 20 at a height such that the upper end of the support portion 37 protrudes slightly above the mounting surface 21. Therefore, even when all the rotating portions 31 of each attachment piece 30 are in the extended position, the multiple protruding support portions 37 allow the edge portion S1 of the sheet material S to be precisely aligned with the edge portion 22 of the mounting surface 21.

[0029] Furthermore, during joining, the object to be attached C is first placed on the mounting surface 21. As described above, the edge portion C1 of the object to be attached C is aligned with the step 314 of each rotating portion 31 and attached to the attachment surface 311. In addition, the object to be attached C is positioned along the plane on the mounting surface 23 side of the upper end of the support portion 37 and along the mounting surface 21 via a bent portion 36 that is bent toward the unfolded position from the attachment surface 311 (see Figure 12(B)). As shown in Figure 5(B), the bent portion 36 of each attachment piece 30 is formed with a constricted shape so that its thickness (thickness perpendicular to the flat surface of the attachment piece 30) is sufficiently thinner than that of the rotating portion 31 and the support portion 37. Therefore, when the rotating portion 31 is rotated to the opposing position with the object C attached to the attachment piece 30 in the unfolded position, the slack of the object C attached to the bent portion 36 can be minimized.

[0030] Figure 6(A) shows the state in which the adherend C is attached to the adherend piece 30X in the unfolded position, as a comparative example where the folded portion is not thin, and Figure 6(B) shows the state of slack that occurred in the adherend C when it was rotated to the opposite position. As an example of the bent portion of the attachment piece 30X, a mechanical hinge structure is adopted. In the case of a hinge structure, the hinge portion is generally of the same thickness as or greater than the other parts (rotating portion 31X, support portion 37X). When in the unfolded position, the object C adheres along the outer circumference of the bent portion. When the rotating portion 31X rotates to the opposite position, the portion of the object C that adhered along the outer circumference of the bent portion becomes the slack Cr of the object C. Therefore, the thinner the width of the bent portion, the shorter the slack Cr caused by the portion of the object C that adheres along the outer circumference of the bent portion can be. In other words, in the case of a bent portion 36 whose thickness is reduced compared to other parts due to the constricted shape of the attachment piece 30, it is possible to minimize sagging caused by the adherend C attached to the bent portion 36.

[0031] [Joining fixture: support base] The support base 40 has a base portion 41 that can be adsorbed onto the mounting surface H, and an adjustment portion 42 that supports the position of the mounting base 20 on the base portion 41 in an adjustable manner. The base portion 41 may be designed to be attracted to the mounting surface H using pneumatic pressure, but here we illustrate a structure in which a permanent magnet is built in and the base portion 41 is attracted to the mounting surface H, which is made of a magnetic material, by magnetic force. The base portion 41 is equipped with an operating part, such as a handle or knob (not shown), that can change the orientation and position of the built-in permanent magnet, and has a structure that can switch between an attracted state and an unattracted state.

[0032] The adjustment unit 42 has two sliding mechanisms that allow the mounting base 20 to be moved and adjusted in two horizontal and mutually orthogonal directions, and each sliding mechanism is equipped with a fastening screw to fix it in the adjusted position. This makes it possible to adjust the mounting base 20 to any position on the horizontal plane. Furthermore, since the base portion 41 can be attracted to any position and orientation on the mounting surface H, the adjustment portion 42 performs fine adjustments to the position attracted by the base portion 41.

[0033] [Switching mechanism] Figure 7 is a perspective view of all the switching mechanisms 50, 50A, 50B, and 50C (hereinafter sometimes collectively referred to as "switching mechanisms 50, etc.") installed on the joining device 100. Each of these switching mechanisms 50, etc., enables switching the rotating portion 31 of a group of adhesive pieces 30, which are arranged in a continuous line, from the deployed position to the opposing position. The switching of the rotating portion 31 of the adhesive piece 30 from the opposing position to the deployed position is performed by the rubber cord 11 described above. Therefore, the switching means is composed of the switching mechanisms 50, etc. and the rubber cord 11. Each switching mechanism 50, etc., can switch the position of a group of adhesive pieces 30, thereby enabling the switching of the positions of all adhesive pieces 30 attached to the mounting base 20.

[0034] Since the switching mechanisms 50, 50A, 50B, and 50C share most of their components and differ only in some aspects, we will first describe the switching mechanism 50, and then describe only the differences between the switching mechanisms 50A, 50B, and 50C and the switching mechanisms 50A, 50B, and 50C. Furthermore, for the switching mechanisms 50, 50A, 50B, and 50C, the same reference numeral will be used for the common components, and each component will be assigned its own unique reference numeral for the differing components.

[0035] Figure 8 is a side view showing the standby state of the switching mechanism 50 before performing a position switching operation on the attached piece 30, Figure 9 is a plan view showing the standby state of all installed switching mechanisms 50, 50A, 50B, and 50C, Figure 10 is a side view showing the operating state of the switching mechanism 50 after performing a position switching operation on the attached piece 30, and Figure 11 shows a plan view showing the operating state of all installed switching mechanisms 50, 50A, 50B, and 50C. In the description of the switching mechanisms 50, 50A, 50B, and 50C, the direction approaching the adhesive piece 30 is referred to as "forward," and the direction moving away from the adhesive piece 30 is referred to as "backward."

[0036] The switching mechanism 50 includes a contact body 54 that contacts the rotating portion 31 of the multiple adhesive pieces 30 when switching positions, a rotation imparting member 51 that performs a rotation imparting operation to rotate the rotating portion 31 of the multiple adhesive pieces 30 via the contact body 54, an air cylinder 52 as an actuator that serves as the driving source for the rotation imparting operation, a transmission mechanism 53 that converts the forward and backward movement of the air cylinder 52 into a predetermined rotation imparting operation and transmits it to the rotation imparting member 51, and a base portion 55 as an adsorption portion that holds the switching mechanism 50 at any position on the mounting surface H.

[0037] The contact body 54 presses against the rotating portion 31 of the attachment piece 30 with its front tip, causing it to rotate. The tip of the contact body 54 has a width several times greater than the width of the rotating portion 31, so that it can rotate the rotating portions 31 of multiple attachment pieces 30 at once. However, if the width is too large, it becomes difficult to accommodate cases where multiple rotating portions 31 are arranged in a curved shape, so it is preferable that the width of the contact body 54 be in the range of 2 to 20 times. The contact body 54 contacts the pressure-receiving surface 312 of the rotating part 31 in the deployed position from below, moves upward while advancing toward the mounting surface 21, and then turns downward while advancing. This allows the rotating part 31 to be rotated from the deployed position to the opposing position.

[0038] The rotation-granting member 51 is a long, plate-like body oriented in the front-rear direction, and is integrally connected to the contact body 54 at its tip. The rotation-granting member 51 has an arched shape in the front half, which is convex upward when viewed from the side, and the rear half extends straight.

[0039] The air cylinder 52 has a main body that is roughly rectangular in shape with a narrow width overall and has a cylinder inside, two plungers 521 that run vertically, a support base 522 that supports the rotation-granting member 51 and the transmission mechanism 53, and an upright portion 523 that extends upward from the front of the upper end of the main body. The support base 522 is connected to the upper ends of the two plungers 521, and vertical movement is input from the plungers 521.

[0040] The transmission mechanism 53 comprises first to third link members 531 to 533 and converts the upward movement of the air cylinder 52 into an up-and-down movement accompanied by forward movement by the contact body 54. The first to third link members 531 to 533 are all connected so as to be rotatable around an axis that is perpendicular to the forward movement direction of the contact body 54 and is aligned with a horizontal direction. The first to third link members 531 to 533 are provided in pairs on both sides of the rotation-granting member 51.

[0041] The first link member 531 has one end connected to the rear upper surface of the support base 522 (the end separated from the attachment piece 30), and the other end connected to the rear end of the rotation-granting member 51. The second link member 532 has one end connected to the upper end of the upright portion 523 and the other end connected to the intermediate portion in the front-rear direction of the rotation-granting member 51. The third link member 533 has one end connected to the upper front part (adhesion piece 30 side) of the support base 522, and the other end connected near the other end of the second link member 532. The first to third link members 531 to 533, together with the rotation-granting member 51, constitute a five-bar linkage mechanism.

[0042] With the above configuration, when the plunger 521 of the air cylinder 52 pushes the support base 522 upward, the third link member 533 pushes up the second link member 532, causing it to rotate in an up-and-down motion, as shown in Figures 8 and 10. This imparts a forward movement to the rotation-granting member 51. Meanwhile, the first link member 531 rotates up and down due to the forward movement of the rotation-granting member 51, pushing up the rear end of the rotation-granting member 51. At the beginning of the forward movement, the amount of upward movement of the second link member 532 is greater than the amount of upward movement of the first link member 531, so the rotation-granting member 51 moves upward while the end on the contact body 54 side moves forward. Furthermore, when the plunger 521 of the air cylinder 52 pushes the support base 522 upward, the third link member 533 is connected to the second link member 532, so the undulating rotation is restricted. However, the amount of upward movement of the first link member 531 exceeds the amount of upward movement of the second link member 532, and the rotation-granting member 51 begins to move downward while the end on the contact body 54 side moves forward. Therefore, in the deployed position, the contact body 54, which contacts the pressure-receiving surface 312 of the rotating portion 31 of the downward-facing attachment piece 30 from below, pushes up the pressure-receiving surface 312 and rotates it forward to switch to the opposing position, and further presses the rotating portion 31 downward through the pressure-receiving surface 312.

[0043] The base portion 55 is connected to the air cylinder 52 via a connecting bracket 551 or 552, and supports the air cylinder 52 by adhering itself to the mounting surface H so that the air cylinder 52 remains upright at any position on the mounting surface H. The base portion 55 may be designed to be attracted to the mounting surface H using pneumatic pressure, but here we illustrate a structure in which a permanent magnet is built in and the base portion 55 is attracted to the mounting surface H, which is made of a magnetic material, by magnetic force. The base portion 55 is equipped with an operating part, such as a handle or knob (not shown), that can change the orientation and position of the built-in permanent magnet, and has a structure that can switch between an attracted state and an unattracted state.

[0044] The connecting bracket 551 or 552 is used selectively depending on the arrangement of the switching mechanism 50, etc. For example, the connecting bracket 551 has the function of connecting the base portion 55 to the side of the air cylinder 52, and the connecting bracket 552 has the function of connecting the base portion 55 to the rear of the air cylinder 52. As shown in Figure 7, the switching mechanisms 50 and the like may be arranged in a close-packed manner. Even in a close-packed arrangement, if there is space to place the base 55 next to the air cylinder 52, the connecting bracket 551 is used; if there is no space, the connecting bracket 552 is used.

[0045] The switching mechanisms 50A, 50B, and 50C are equipped with contact bodies 54A, 54B, and 54C that have a different form from the contact body 54 of the switching mechanism 50 described above. The switching mechanism 50A is positioned opposite the center of the curved portion that protrudes outward from the edge 22 of the mounting surface 21 of the mounting base 20, while the switching mechanisms 50B and 50C are positioned on either side thereof.

[0046] As shown in Figures 9 and 11, the contact body 54A of the switching mechanism 50A is provided with angular protrusions 541A on both the left and right sides of the front tip, which widen the tip. The width of each protruding portion 541A is set to be smaller than the width of the contact body 54 without the protrusions (for example, about half the width of the contact body 54).

[0047] On the other hand, the contact body 54B of the switching mechanism 50B, which is located to the left of the switching mechanism 50A, has a notch 542B formed on the right side of its front tip, into which the left protruding portion 541A fits. Similarly, the contact body 54B of the switching mechanism 50B, which is located to the right of the switching mechanism 50A, has a notch 542C formed on the left side of its front tip, into which the right protruding portion 541A fits. The widths of the respective notches 542B and 542C are set to be approximately equal to the width of one protruding portion 541A.

[0048] As shown in Figure 9, when the rotating portion 31 of each attachment piece 30 (not shown in Figure 9) is in the deployed position, the switching mechanisms 50A, 50B, and 50C are arranged such that a certain gap is created in the left-right direction between each contact body 54A, 54B, and 54C before it moves forward. Then, as shown in Figure 11, when the rotating portion 31 of each attachment piece 30 (not shown in Figure 11) is pushed to the opposing position, the switching mechanisms 50A, 50B, and 50C are arranged such that there is almost no gap between the contact bodies 54A, 54B, and 54C in the left-right direction after forward movement. At this time, the left and right protruding portions 541A of the contact body 54A are fitted into the notches 542B, 542C of the left and right contact bodies 54B, 54C so that there is almost no gap.

[0049] When only a normal switching mechanism 50 is placed on the outwardly convex curve of the edge portion 22 of the mounting surface 21 of the mounting base 20, it is necessary to arrange it in advance so that a gap is created in the left-right direction so that the multiple contact bodies 54 that move forward do not interfere with each other. And as a result of this gap, an attachment piece 30 that does not undergo position switching may be created. In contrast, the gap between the switching mechanisms 50A, 50B, and 50C is eliminated by the protruding portion 541A of the contact body 54A. Furthermore, before moving forward, a gap is created between the tip of the protruding portion 541A of the contact body 54A and the tips of the contact bodies 54B and 54C other than the notches 542B and 542C. However, even if the rotating portion 31 of the attachment piece 30 is located in this gap, the inner edges of the notches 542B and 542C can rotate the rotating portion 31 to perform the position change. Furthermore, it is preferable that the thickness of the protruding portion 541A in the front-to-back direction and the depth of each notch portion 542B, 542C in the front-to-back direction be small.

[0050] [Joining operation] The joining operation by the joining device 100 will be explained based on the side views of the area around the attachment piece 30 shown in Figures 12(A) to 15(B) and the plan views of the area around the mounting table 20 shown in Figures 16(A) to 18. First, as shown in Figures 12(A) and 16(A), with the rotating portion 31 of each attachment piece 30 in the deployed position, an adhesive layer 315 is formed on the attachment surface 311 of each rotating portion 31 by applying double-sided tape. The adhesive layer 315 may also be formed by applying an adhesive.

[0051] Next, as shown in Figures 12(B) and 16(B), the object to be attached C is placed on the mounting surface 21 of the mounting base 20. At this time, the edge portion C1 of the object to be attached C is positioned on the step 314 (see Figure 5) of the rotating portion 31 of each attachment piece 30 and adhered to the adhesive layer 315 of the attachment surface 311. The object to be attached C is also placed on the mounting surface 21 along the surfaces of the bent portion 36 and the support portion 37 from the attachment surface 311.

[0052] Next, as shown in Figure 13(A), an adhesive is applied to the portion of each attachment piece 30 of the adherend C that is outside the bent portion 36 and opposite to the surface attached to the adhesion surface 311, thereby forming an adhesive layer g. The adhesive can be any adhesive capable of bonding the adherend C and the sheet-like material S, but it is preferable that it cannot be easily peeled off after bonding. For example, a reactive hot-melt adhesive can be used as the adhesive.

[0053] Next, as shown in Figures 13(B) and 17(A), the sheet-like material S is placed on the mounting surface 21 of the mounting table 20, overlapping the object C to be attached. At this time, the edge portion S1 of the sheet-like material S is positioned on the edge portion 22 of the mounting surface 21. A fixing plate 15 is inserted between the object to be attached C and the sheet-like material S (not shown in Figure 17(A)). The edge of the fixing plate 15 may be shaped to match the edge S1 of the sheet-like material S. The fixing plate 15 has higher rigidity than the sheet-like material S and can support the sheet-like material S and the object to be attached C in a fixed shape.

[0054] Next, as shown in Figures 14(A) and 17(B), each switching mechanism 50 moves forward the rotation-granting member 51 and contact body 54, which were previously in the retracted position, by the protruding movement of the plunger 521 of the air cylinder 52. As described above, when each switching mechanism 50 moves forward, the rotation-granting member 51 and the contact body 54 rise and then turn downward, causing the rotation portion 31 of each attachment piece 30 to rotate from the deployed position to the opposing position. As a result, the edge portion C1 of the adherend C is folded back to the back side of the edge portion S1 of the sheet material S, and the adhesive layer g is pressed against the back side of the edge portion S1 of the sheet material S and bonded. Each switching mechanism 50 may maintain the forward position of the rotation-granting member 51 and the contact body 54 for a certain period of time, waiting for the adhesive layer g to ensure sufficient adhesive strength between the edge portion C1 of the adherend C and the edge portion S1 of the sheet-like material S.

[0055] Next, as shown in Figure 14(B), each switching mechanism 50, etc., retracts the plunger 521 of the air cylinder 52, causing the rotation-giving member 51 and the contact body 54, etc. to move backward. As a result, the rotating portion 31 of each attachment piece 30 rotates due to the tension of the rubber string 11 and returns from the opposing position to the deployed position. Since the edge portion C1 of the object to be attached C is adhered to the sheet-like material S, the adhesive layer 315 on the attachment surface 311 of the rotating portion 31 of each attachment piece 30 peels off from the edge portion C1 of the object to be attached C.

[0056] Next, as shown in Figures 15(A) and 18, the sheet-like material S to which the object C is adhered is attached to the edge portion S1 is removed from the mounting surface 21 of the mounting base 20. Furthermore, as shown in Figure 15(B), the fixing plate 15 is removed from between the sheet material S and the adherend C, and the joining process is completed.

[0057] [Technical Effects of Embodiments of the Invention] The above-described joining device 100 comprises a joining jig 10 which includes a mounting table 20 whose mounting surface 21 edge portion 22 is formed in a shape corresponding to the edge portion S1 of the sheet material S, and a plurality of adhesive pieces 30 arranged along the edge portion 22 of the mounting table 20 for attaching the object to be attached C. Each adhesive piece 30 can be switched between an expanded position in which the adhesive surface 311 for attaching the object to be attached is extended outward from the edge portion 22 of the mounting surface 21 of the mounting table 20, and an opposed position in which the adhesive surface 311 faces the edge portion 22 of the mounting surface 21, by rotating its tip portion on the edge portion 22 of the mounting surface 21 of the mounting table 20. This makes it easy to attach the edge portion C1 of the object to be attached C to the adhesive surface 311 of the adhesive piece 30 and apply adhesive to the edge portion C1 of the object to be attached C. Furthermore, by positioning the edge portion S1 of the sheet-like material S on the edge portion 22 of the mounting surface 21 of the mounting base 20 and rotating the tip of the adhesive piece 30, the edge portion C1 of the object to be attached can be easily folded back along the edge portion S1 of the sheet-like material S. This makes it possible to easily adhere the edge portion C1 of the object to be attached C to the back surface of the edge portion S1 of the sheet-like material S, even if the edge portion S1 is not in a straight line. In other words, the joining device 100 makes it possible to simplify the process of folding the workpiece C and bonding it along the edge portion S1 of the sheet-like material S.

[0058] Furthermore, since the joining jig 10 is equipped with a rubber cord 11 that rotates the adhesive piece 30 toward the deployed position, after folding the object to be attached C and bonding it along the edge portion S1 of the sheet material S, the tip of the adhesive piece 30 can be returned to the deployed position by the tension of the rubber cord 11, thereby reducing the burden of the return work.

[0059] Furthermore, since the adhesive piece 30 has a rotating part 31 having an adhesive surface 311 and a support part 37 that is attached to the mounting base 20, the adhesive piece 30 can be attached to and detached from the mounting base 20. Since the mounting base 20 needs to be manufactured with the shape of its edge portion 22 to match the shape of the edge portion S1 of the sheet material S, when using it to join edge portions S1 of sheet material S with different shapes, it is necessary to create a new joining jig 10. However, since the adhesive piece 30 is removable, it can be reattached to a new joining jig 10.

[0060] Furthermore, since the adhesive piece 30 has a bent portion 36 formed by a constriction at the boundary between the rotating portion 31 and the support portion 37, the rotating portion 31 can rotate. Moreover, because the bent portion 36 is formed by a constriction, it is thinner than the rotating portion 31 and the support portion 37. Therefore, when the object to be attached C is positioned along the adhesive piece 30 in the deployed position and rotated to the opposite position, the slack of the object to be attached C can be reduced, making it possible to achieve a good bond.

[0061] Furthermore, since the support portions 37 of the multiple attachment pieces 30 arranged along the edge portion 22 of the mounting base 20 are integrally connected via groove-shaped flexible portions 38, it becomes extremely easy to position the multiple attachment pieces 30 along the edge portion 22 when attaching them to the mounting base 20, thereby further reducing the burden of joining work.

[0062] Furthermore, since the joining device 100 is equipped with a switching means for switching between a deployed position and an opposing position for the multiple attachment pieces 30, there is no need to manually fold back the edge portion C1 of the workpiece C, thereby further reducing the burden of joining work.

[0063] Furthermore, in addition to switching the position of the multiple adhesive pieces 30, the switching means also applies pressure to the opposing adhesive surface 311 toward the mounting surface 21. This allows the device to not only fold back the edge portion C1 of the object to be attached C, but also to press and join it against the edge portion S1 of the sheet-like material S, thereby further reducing the burden of joining work.

[0064] Furthermore, multiple switching mechanisms 50 are provided, and each switching mechanism 50 can perform position switching on multiple adhering pieces 30 arranged in a continuous line. This reduces the number of switching mechanisms 50 required, thereby reducing the manufacturing cost and miniaturizing the device. Alternatively, the number of adhering pieces 30 can be increased relative to the number of switching mechanisms 50. By narrowing the width of the adhering pieces 30 and arranging them more densely, the edge C1 of the adherend C can be folded more faithfully to the shape of the edge S1 in response to changes such as bending of the edge S1 of the sheet material S, thereby achieving better bonding.

[0065] Furthermore, since the switching mechanisms 50 of the multiple switching means are equipped with a base portion 55 that can switch between an adsorption state and a release state with respect to the mounting surface H, each switching mechanism 50 can be attached to any position on the mounting surface H, enabling the rotational position switching of the adhesive piece 30 for various shapes of the edge portion S1 of the sheet material S, and achieving good bonding for various shapes of the edge portion S1 of the sheet material S.

[0066] Furthermore, the switching mechanism 50A of some switching means has a contact body 54A with an overhang 541A that widens the tip portion that contacts the adhesive piece 30, and the switching mechanisms 50B and 50C of other switching means have contact bodies 54B and 54C with notches 542B and 542C that are provided at the tip portion that contacts the adhesive piece 30 to avoid interference with the overhang 541A. By arranging these switching mechanisms 50A, 50B, and 50C opposite the curved edge portion 22 of the joining jig 10, it becomes possible to reduce the number of adhering pieces 30 that become poorly positioned due to gaps created by the forward and backward movement of each contact body 54A, 54B, and 54C, thereby achieving a better joining result.

[0067] [others] The details shown in the above-described embodiments can be modified as appropriate without departing from the spirit of the invention. For example, although the switching mechanisms 50A, 50B, and 50C are shown positioned to face the portion of the edge 22 of the joining jig 10 that is convex outwards, they may also be positioned to face the portion that is concave outwards. In this case, the switching mechanisms 50A, 50B, and 50C are arranged such that the gap between the protruding portion 541A and the notched portions 542B, 542C becomes smaller in the retracted position and larger in the forward position. In this case as well, it is possible to rotate the rotating portion 31 of each attachment piece 30 smoothly. [Explanation of Symbols]

[0068] 10 Joining jigs 11. Rubber band (biasing means) 15 Fixed plate 20 mounting platform 21 Mounting surface 22 Edge 23 Mounting surface 30 attached pieces 31 Rotating part 36 Bend section 37 Support part 38 Flexible part 40 Support stand 50, 50A, 50B, 50C switching mechanism 51 Rotation-giving member 52 Air Cylinder 53 Transmission Mechanism 54,54A,54B,54C Contact body 55 Base (adhesion part) 100 Joining equipment 311 Adhesion surface 312 Pressure-receiving surface 314 steps 315 Adhesive layer 541A Overhang 542B, 542C Notch C. Clothing C1 Edge H mounting surface S Sheet-like material S1 Edge g Adhesive layer

Claims

1. In a joining jig for placing a sheet-like adherend on one side of a sheet-like material, folding the adherend over at the edge of the sheet-like material, and bonding the edge of the adherend to the other side of the sheet-like material, A mounting base having a mounting surface on which the sheet-like material is placed on top of the object to be attached, wherein the edge of the mounting surface is formed in a shape corresponding to the edge of the sheet-like material, A plurality of attachment pieces arranged in a line along the edge of the mounting platform for attaching the object to be attached, Equipped with, The aforementioned attached piece is The tip of the tip rotates at the edge of the mounting surface of the aforementioned stand, allowing the adhesion surface for attaching the object to be attached to be switched between an extended position where the adhesion surface is extended outward from the edge of the mounting surface of the aforementioned stand, and an opposing position where the adhesion surface faces the edge of the aforementioned mounting surface. A joining jig characterized by having a rotating part having the aforementioned adhesion surface and a support part that is attached to the base described above.

2. The joining jig according to claim 1, further comprising a biasing means for rotating the adhering piece toward the deployed position.

3. The joining jig according to claim 1 or 2, characterized in that the attachment piece allows the rotation of the rotating part by a bent portion consisting of a constriction formed at the boundary between the rotating part and the support part.

4. The plurality of attachment pieces arranged along the edge of the mounting base are such that the support portion is integrally connected to the support portion of the adjacent attachment piece. The joining jig according to any one of claims 1 to 3, characterized in that the multiple connected attachment pieces can be attached in accordance with the shape of the edge portion of the stand described above by groove-shaped flexible portions formed at the boundary between the support portion and the support portion.

5. A joining jig according to any one of claims 1 to 4, A joining device comprising a switching means for switching a plurality of the adhering pieces of the joining jig between the deployed position and the opposing position.

6. The bonding apparatus according to claim 5, characterized in that the switching means, in addition to switching the position of the plurality of adhesive pieces, pressurizes the adhesive surface at the opposing position toward the aforementioned mounting surface.

7. The system includes multiple switching means, The bonding apparatus according to claim 5 or 6, characterized in that each of the switching means performs position switching for a plurality of the attached pieces arranged in a continuous line.

8. The bonding device according to claim 7, characterized in that the plurality of switching means are equipped with suction parts that can switch between an adsorption state and a release state with respect to the mounting surface, and can be attached to any position on the mounting surface.

9. Each of the multiple switching means has a contact body that contacts a plurality of the attached pieces arranged in a continuous line to switch them from the deployed position to the opposing position. Some of the switching means have a contact body having a protruding portion that widens the tip portion that contacts the attachment piece, The joining device according to claim 7 or 8, wherein the other switching means has a contact body having a notch at the tip that contacts the attachment piece to avoid interference with the protruding portion.

Images