Crimping method

Abstract

The present invention provides a crimping method that allows for good crimping of finishing materials while significantly reducing noise during the crimping process. [Solution] When pressing a plate-shaped finishing material 10 against a plate-shaped base material 11 of a wall or ceiling, and bonding the finishing material 10 to the base material 11 with adhesives 12 and 14 between the finishing material 10 and the base material 11, a crimping tool 1 having a handle, a roller, and an elastic body that transmits force between the handle and the roller is used. By holding the handle of the crimping tool 1 and pressing the roller against the finishing material 10, the roller is pressed against the finishing material 10 with a force greater than the restoring force of the contracted elastic body, while moving the roller in the in-plane direction of the finishing material 10, thereby crimping the finishing material 10 to the base material 11.

Description

Technical Field

[0006]

[0001] The present invention relates to a method for pressing a finishing material.

Background Art

[0002] When constructing walls or ceilings, an adhesive may be applied to a plate-shaped finishing material, and the finishing material may be pressed onto a plate-shaped base material on the wall or ceiling using the adhesive (for example, see Patent Document 1). The pressing operation is usually performed by an operator hitting the finishing material by hand (hereinafter referred to as the hand-hitting operation), thereby pressing the finishing material onto the base material.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The pressing operation of the finishing material may be carried out as part of renovation work while using the building. In this case, the work is often carried out adjacent to the space where the occupants are present, and the loud work noise generated by the hand-hitting operation is not preferable.

[0005] To reduce the work noise, methods such as rubbing the finishing material by hand can be considered, but it is difficult to ensure the pressure for better pressing of the finishing material compared to the hand-hitting operation.

[0006] In addition, in the pressing method by the hand-hitting operation, there is also a problem that variations in the quality of pressing are likely to occur because the operator determines the degree of pressing of the finishing material based on experience.

[0007] This invention has been made in view of the above-mentioned problems, and aims to provide a crimping method that can effectively crimp finishing materials and significantly reduce the noise during the crimping process. [Means for solving the problem]

[0008] The present invention, which solves the above problems, is a method of pressing a plate-shaped finishing material against a plate-shaped base material of a wall or ceiling, and pressing the finishing material against the base material with an adhesive between the finishing material and the base material, characterized in that a pressing tool having a handle, a roller, and an elastic body that transmits force between the handle and the roller is used, and the roller is pressed against the finishing material by holding the handle of the pressing tool and pressing the roller against the finishing material, thereby pressing the roller against the finishing material with a force greater than the restoring force of the contracted elastic body, while moving the roller in the in-plane direction of the finishing material, thereby pressing the finishing material against the base material.

[0009] In this invention, during the crimping process of the finishing material, the crimping tool's handle is held and the roller is pressed against the finishing material. At the same time, the roller is pressed against the finishing material with a force greater than the restoring force of the contracted elastic body, while moving the roller in the in-plane direction of the finishing material. By using the crimping tool in this way, a force greater than the restoring force of the elastic body is secured as pressure on the finishing material, allowing the finishing material to be properly crimped to the base material, while also significantly reducing the noise compared to manual tapping.

[0010] The crimping tool is preferably equipped with a stopper mechanism to limit the contraction of the elastic body so that it does not contract further even when force is applied from the handle. Furthermore, it is desirable that the contraction of the elastic body is limited by the stopper mechanism when the force applied from the handle is 3 kg or more. The stopper mechanism described above allows the handle to be stabilized while maintaining the elastic body's contraction at a predetermined level, and by pressing the finishing material with a force exceeding a certain restoring force, variations in the quality of the crimping due to the operator can be reduced. The amount of force applied from the handle that limits the elastic body's contraction can be determined as appropriate, but setting this force to 3 kg or more, as described above, improves workability during the crimping process.

[0011] The crimping tool has a pair of rollers, the ends of which are attached to a pair of holding parts, a handle is provided between the pair of holding parts, the ends of which are fixed to the outer casing of the pair of holding parts through elongated holes provided in the pair of holding parts, one end of the elastic body is fixed inside the casing, the other end of the elastic body is fixed to a receiving part provided in the pair of holding parts, the stopper mechanism is the casing and the receiving part, and it is desirable that the contraction of the elastic body is restricted by the casing contacting the receiving part. This allows for the provision of a crimping tool with a simple structure that facilitates crimping operations. The amount of contraction of the elastic body when force is applied from the handle can be reliably limited by a simple stopper mechanism in which the casing contacts the receiving part. Furthermore, because the casing contacts the receiving part, the operator can easily determine from the appearance of the crimping tool and the feel of the handle that they are applying the appropriate force from the handle.

[0012] The adhesive is provided in a straight line along the straight edge of the finishing material, and it is desirable that the roller moves in a straight line along the adhesive. This allows the adhesive application pattern to be adapted to the crimping method using a crimping tool, making it easier to perform the crimping work on the finishing material. [Effects of the Invention]

[0013] The present invention provides a crimping method that allows for good crimping of finishing materials while significantly reducing the noise generated during the crimping process. [Brief explanation of the drawing]

[0014] [Figure 1] A view for explaining the crimping method of the finishing material 10. [Figure 2] A view showing the application pattern of the adhesive. [Figure 3] A perspective view showing the crimping tool 1. [Figure 4] A view showing the upper surface of the crimping tool 1. [Figure 5] A view showing a cross section taken along line A-A of FIG. 4. [Figure 6] A view showing a state in which the finishing material 10 is pressed against the base material 11 side by the crimping tool 1. [Figure 7] A view showing the application pattern of the adhesive. [Figure 8] A view showing the evaluation of adhesiveness and workability. [Figure 9] A view showing the application pattern of the adhesive.

Mode for Carrying Out the Invention

[0015] Hereinafter, preferred embodiments of the present invention will be described in detail based on the drawings.

[0016] (1. Crimping method of the finishing material 10) FIG. 1 is a view for explaining the crimping method of the finishing material 10 according to an embodiment of the present invention. In this embodiment, an example of crimping the finishing material 10 to the base material 11 of the wall illustrated in FIG. 1(a) will be described. The base material 11 is a plate-shaped member, for example, a gypsum board or a plywood, but is not limited thereto.

[0017] In this embodiment, when crimping the finishing material 10 to the base material 11, first, an adhesive is applied to the crimping surface of the finishing material 10. The finishing material 10 is a plate-shaped member, for example, a calcium silicate board which is a non-combustible material is used as a base material, and a laminate such as a film is applied to the outer surface thereof, but is not limited thereto. For example, a decorative metal plate or the like may be used, or a wood veneer panel may be used. Note that the "crimping surface" is the surface on the side of the base material 11, and the "outer surface" is the surface on the side opposite to the crimping surface.

[0018] Figure 2 shows the application patterns of adhesives 12 and 14 to the finishing material 10, with the area of ​​the finishing material 10 indicated by a dashed line. In this embodiment, the finishing material 10 is rectangular in shape, and the adhesive 12 is applied linearly along the straight long and short sides of the finishing material 10, so that the entire area is arranged in a rectangular shape along the outer circumference of the finishing material 10. The long side direction of the finishing material 10 corresponds to the vertical direction, and the short side direction corresponds to the horizontal direction. Furthermore, in this embodiment, the adhesive 14 along the long side direction (vertical direction) of the finishing material 10 is arranged linearly in the center of the short side direction (horizontal direction) of the finishing material 10. The adhesive 14 is arranged over almost the entire length of the long side direction of the finishing material 10.

[0019] Furthermore, double-sided tapes 13 and 15 are attached to the pressure-bonding surface of the finishing material 10 near the adhesives 12 and 14, respectively. The double-sided tapes 13 and 15 are provided in a straight line parallel to the adhesives 12 and 14. Note that the double-sided tapes 13 and 15 are attached to the finishing material 10 before the adhesives 12 and 14 are applied.

[0020] In this embodiment, as shown in Figure 1(b), the finishing material 10, on which adhesives 12 and 14 have been applied to the bonding surface, is placed on the base material 11. Then, as shown in Figure 1(c), the finishing material 10 is pressed against the base material 11 with the crimping tool 1, while the crimping tool 1 is moved in the in-plane direction of the finishing material 10. The crimping tool 1 is moved linearly along the stretching direction of the adhesives 12 and 14 at positions corresponding to the adhesives 12 and 14, as illustrated by arrow a.

[0021] By pressing the finishing material 10 against the base material 11 with the crimping tool 1, the adhesives 12 and 14 are crushed and spread in the in-plane direction of the finishing material 10, and the finishing material 10 is pressed against the base material 11 by the adhesives 12 and 14 between the finishing material 10 and the base material 11.

[0022] The double-sided tapes 13 and 15 function as temporary fasteners until the adhesives 12 and 14 harden, and their proximity to the adhesives 12 and 14 makes them more effective at providing temporary fastening. The proximity of the double-sided tapes 13 and 15 to the adhesives 12 and 14 is also preferable because it allows for simultaneous pressing by the adhesives 12 and 14 and adhesion by the double-sided tapes 13 and 15 by moving the crimping tool 1 along the adhesives 12 and 14.

[0023] (2. Crimping tool 1) Figure 3 is a perspective view showing the crimping tool 1. Figure 4 is a view showing the top surface of the crimping tool 1, and Figure 5 is a view showing a cross-section along line AA in Figure 4. As shown in Figures 3 to 5, the crimping tool 1 has a handle 2, a holding part 3, a roller 4, a casing 5, an elastic body 6, a receiving part 7, etc.

[0024] The handle 2 is a cylindrical member with a core material 21 inside. The core material 21 is a rod-shaped portion provided along the axial direction of the handle 2. The handle 2 is provided between a pair of holding parts 3.

[0025] The holding part 3 is a plate-shaped member and is positioned at both ends of the handle 2 in the axial direction. As shown in Figure 5, the holding part 3 has a flask-shaped vertical surface. An elongated hole 31 is provided at the top of the vertical surface of the holding part 3, running vertically along the vertical direction of the vertical surface of the holding part 3. Both ends of the core material 21 of the handle 2 are passed through the elongated hole 31 of each holding part 3. With respect to the crimping tool 1, "vertical direction" refers to the direction normal to the finishing material 10 when the finishing material 10 is being pressed by the crimping tool 1. Also, "upper (upper part, upper end, etc.)" refers to the side farther from the finishing material 10 in the same normal direction, and "lower (lower part, lower end, etc.)" refers to the side closer to the finishing material 10 in the same normal direction.

[0026] The roller 4 is a cylindrical member that rotates around the rotation axis 41 and is positioned between the pair of holding parts 3. The roller 4 contacts the finishing material 10 when the finishing material 10 is crimped by the crimping tool 1 and rotates as the crimping tool 1 moves. In the crimping tool 1, the pair of rollers 4 are provided at the front and back in the direction of movement of the crimping tool 1. The direction of movement of the crimping tool 1 corresponds to the left and right direction in Figure 5.

[0027] As shown in Figure 5, one roller 4 is positioned at the lower left end of the vertical surface of the holding portion 3, and both ends of the rotation axis 41 of this roller 4 are attached to the corresponding ends of the pair of holding portions 3. The other roller 4 is positioned at the lower right end of the vertical surface of the holding portion 3, and both ends of the rotation axis 41 of this roller 4 are attached to the corresponding ends of the pair of holding portions 3. The left and right sides of the vertical surface of the holding portion 3 correspond to the front and back in the direction of movement of the crimping tool 1.

[0028] The outer surface of the roller 4 is made of hard rubber. This prevents damage to the finishing material 10 by the roller 4 while allowing the roller 4 to press the finishing material 10 effectively. However, the material of the roller 4 is not limited to this. The length L of the contact portion of the roller 4 with the finishing material 10 (see Figure 4) is determined considering the portability of the crimping tool 1, the pressure from the roller 4, etc. For example, if the length of the roller 4 is about 11 cm, the crimping tool 1 can be made lighter, and at the same time, the contact area between the roller 4 and the finishing material 10 becomes smaller, increasing the pressure per unit area of ​​the roller 4, and allowing the roller 4 to press the finishing material 10 firmly.

[0029] The casing 5 is provided on the outer side of the upper part of the vertical surface of each holding part 3, at a position corresponding to the elongated hole 31. The casing 5 is arranged to cover the outside of the elongated hole 31 in a box shape. The upper end of the casing 5 is closed, and the lower end of the casing 5 is open. A fixing part 51 for fixing the core material 21 of the handle 2 is provided in the upper part inside the casing 5, and both ends of the core material 21 that pass through the elongated hole 31 are fixed to the fixing part 51.

[0030] An elastic body 6 is also provided inside the casing 5. The elastic body 6 is located inside the casing 5, below the fixing part 51. The elastic body 6 is, for example, a spring, and transmits force between the handle 2 and the roller 4. However, the elastic body 6 is not limited to a spring.

[0031] One end of the elastic body 6 is fixed inside the casing 5 (on the lower surface of the fixing part 51 in the example of Figure 5), and the other end of the elastic body 6 is fixed to the upper surface of the receiving part 7 provided on each holding part 3. The receiving part 7 is an overhang-shaped member arranged along the left-right direction of the vertical surface of the holding part 3, and is positioned at a predetermined distance below the lower end of the casing 5.

[0032] Figure 6 is a cross-sectional view similar to Figure 5, showing the state in which the finishing material 10 is pressed against the base material 11 side (left side of Figure 6) by the crimping tool 1. As shown in Figure 6, in this embodiment, by holding the handle 2 and pressing the roller 4 against the finishing material 10 side, the core material 21 of the handle 2 moves towards the finishing material 10 side within the elongated hole 31 of the holding part 3, and as it moves, the casing 5 also moves towards the finishing material 10 side. As a result the elastic body 6 contracts, and its restoring force is transmitted to the roller 4 via the receiving part 7 and the holding part 3, pressing the roller 4 against the finishing material 10 side. In this state, the finishing material 10 is pressed against the base material 11 by moving the roller 4 in the in-plane direction of the finishing material 10. The roller 4 is moved linearly along the adhesives 12 and 14 as described above.

[0033] The crimping tool 1 is used with the elastic body 6 contracted until the casing 5 contacts the receiving portion 7. The contraction of the elastic body 6 is limited by the casing 5 contacting the receiving portion 7, and it will not contract further even if force is applied from the handle 2. In other words, in this embodiment, the casing 5 and the receiving portion 7 constitute a stopper mechanism for limiting the contraction of the elastic body 6.

[0034] In the crimping tool 1, the elastic body 6 presses the roller 4 with maximum restoring force when the casing 5 contacts the receiving portion 7 and the contraction of the elastic body 6 is restricted. In this embodiment, the contraction of the elastic body 6 is restricted by the stopper mechanism when the force applied from the handle 2 is 3 kg or more. That is, when the handle 2 is pressed with a force of 3 kg, the casing 5 first contacts the receiving portion 7, thereby restricting the contraction of the elastic body 6, and even if a greater force is applied, the contraction of the elastic body 6 remains restricted (however, the force pressing the finishing material 10 itself will increase).

[0035] When using the crimping tool 1, the operator is instructed to apply force to the handle 2 until the casing 5 contacts the receiving portion 7. This ensures that the finishing material 10 is pressed down with a force of at least 3 kg.

[0036] (3. Effects of crimping tool 1) In order to verify the effectiveness of the crimping tool 1, the inventors conducted experiments in which they actually crimped the finishing material 10 onto the base material 11 while changing the crimping method and adhesive application pattern. The results are described below.

[0037] (3-1. Crimping Method) As for the crimping method, in addition to the crimping method using crimping tool 1, crimping by hand hammering was also performed. Regarding crimping tool 1, by adjusting the specifications of the elastic body 6, we prepared three types: one in which the contraction of the elastic body 6 is limited by a stopper mechanism when a force of 6 kg or more is applied from the handle 2 (referred to as "crimping tool (6kg)"), one in which the contraction of the elastic body 6 is limited by a stopper mechanism when a force of 3 kg or more is applied from the handle 2 (referred to as "crimping tool (3kg)"), and one in which the contraction of the elastic body 6 is limited by a stopper mechanism when a force of 1 kg or more is applied from the handle 2 (referred to as "crimping tool (1kg)").

[0038] (3-2. Adhesive application patterns) Figure 7 shows the application pattern of adhesive to the finishing material 10, with the area of ​​the finishing material 10 indicated by a dashed line. Figure 7(a) is the same pattern as in Figure 2, where all adhesives 12 and 14 are applied in a straight line. Figure 7(b) is the same pattern as in Figure 7(a) but with adhesive 14 omitted and wavy adhesive 16 added to each of the two areas enclosed by double-sided tapes 13 and 15. The pattern in Figure 7(b) is commonly used in conventional hand-hammering work, and improved adhesion due to the adhesive 16 can be expected.

[0039] (3-3. Examples and Comparative Examples) In Examples 1-3, adhesives 12 and 14 were applied according to the pattern shown in Figure 7(a), and the finishing material 10 was pressed using a crimping tool (6kg), a crimping tool (3kg), and a crimping tool (1kg). In Example 4, adhesives 12 and 16 were applied according to the pattern shown in Figure 7(b), and the finishing material 10 was pressed using a crimping tool (3kg). As a comparative example, adhesives 12 and 16 were applied according to the pattern shown in Figure 7(b), and the finishing material 10 was pressed by hand tapping.

[0040] (3-4. Evaluation of Adhesion and Workability) Figure 8 shows the evaluation of adhesion and workability for Examples 1 to 4 described above. Adhesion was evaluated by performing a peel test on the finishing material 10 using a Building Research Institute adhesive strength tester and observing whether fracture occurred between the substrate material 11 or the finishing material 10 and the adhesive. Workability was evaluated by combining the subjective evaluations of two workers. In Figure 8, for both adhesion and workability evaluations, the evaluation against the comparative example is used as the baseline ("○"), with "○" indicating an evaluation equivalent to the comparative example, "◎" indicating superiority over the comparative example, and "△" indicating inferiority over the comparative example.

[0041] Regarding the evaluation of adhesion, no fractures were observed between the substrate material 11 or the finishing material 10 and the adhesive in any of Examples 1 to 4 (and the comparative example). This indicates that the crimping method using the crimping tool 1 can ensure crimping performance equivalent to conventional manual tapping while being quiet.

[0042] Regarding ease of installation, Examples 2 and 4, which used a 3kg crimping tool, received the highest ratings. One example of the feedback was, "The load required to press through was low, making the work easy." On the other hand, Example 3, which used a 1kg crimping tool, received the same rating as manual hammering, while Example 1, which used a 6kg crimping tool, received a slightly lower rating compared to manual hammering. The former received feedback that it was "too light and difficult to use," while the latter received feedback that it was "too much load to press through."

[0043] As described above, in this embodiment, when the finishing material 10 is pressed, the handle 2 of the pressing tool 1 is held and the roller 4 is pressed against the finishing material 10, and at that time the roller 4 is pressed against the finishing material 10 with a force greater than the restoring force of the contracted elastic body 6, while moving the roller 4 in the in-plane direction of the finishing material 10. By using the pressing tool 1 in this way, a force greater than the restoring force of the elastic body 6 is secured as pressure on the finishing material 10, so that the finishing material 10 can be pressed well against the base material 11, and the noise of the work is greatly reduced compared to manual tapping.

[0044] Furthermore, in this embodiment, the stopper mechanism of the crimping tool 1 limits the contraction of the elastic body 6, thereby stabilizing the handle 2 while maintaining the contraction of the elastic body 6 at a predetermined amount. By pressing the finishing material 10 with a force greater than a certain restoring force, variations in the quality of crimping by the operator can be reduced.

[0045] In particular, as in Examples 2 and 4 above, using a crimping tool (3kg) in which the contraction of the elastic body 6 is limited when a force of 3kg or more is applied from the handle 2 improves workability during crimping. However, depending on the object to be crimped and the adhesive used, it is also possible to use a crimping tool 1 with a different force at which the contraction of the elastic body 6 is limited, and the crimping tool (6kg) of Example 1 or the crimping tool (1kg) of Example 3 may be preferred. This force can be changed by changing the specifications of the elastic body 6, the distance between the casing 5 and the receiving part 7, etc.

[0046] Furthermore, the crimping tool 1 of this embodiment has a simple structure and is easy to use for crimping work, as it consists of the handle 2, holding part 3, roller 4, casing 5, elastic body 6, receiving part 7, etc. The amount of contraction of the elastic body 6 when force is applied from the handle 2 can be reliably limited by a simple stopper mechanism in which the casing 5 contacts the receiving part 7. Also, because the casing 5 contacts the receiving part 7, the operator can easily determine whether the appropriate force is being applied from the handle 2 by looking at the crimping tool 1 and feeling the handle 2.

[0047] Furthermore, the crimping tool 1, which has a roller 4, is easiest to operate when moved in a straight line. Therefore, in this embodiment, as shown in Figure 2, the adhesives 12 and 14 are applied in a straight line, and the roller 4 is moved in a straight line along the adhesives 12 and 14. In this way, in this embodiment, the application pattern of the adhesives 12 and 14 is made suitable for the crimping method using the crimping tool 1, and the crimping work of the finishing material 10 can be easily performed.

[0048] However, the present invention is not limited to the embodiments described above. For example, the configuration of the crimping tool 1 is not limited to that described in Figures 2 to 4. The crimping tool 1 only needs to have at least a handle 2, a roller 4, and an elastic body 6 that transmits force between the handle 2 and the roller 4. For example, there may be only one roller 4, or the handle 2 may be positioned perpendicular to the roller 4.

[0049] Furthermore, the adhesive application patterns are not limited to the examples in Figure 2 and Figure 7(b). For example, in the case of a finishing material 10 that is longer vertically than usual, as shown in Figure 9(a), in addition to the same adhesive 12, 14 and double-sided tape 13, 15 patterns as in Figure 2, adhesive 17 and double-sided tape 18 may be provided linearly in the short-side direction (horizontal direction) at the center of the long side direction (vertical direction). The double-sided tape 18 is provided in two parts, on both sides of the adhesive 14 and double-sided tape 15.

[0050] Furthermore, when the finishing material 10 is arranged horizontally, the pattern in Figure 2 can be rotated 90°, as shown in Figure 9(b). Alternatively, as shown in Figure 9(c), the adhesive 14 can be omitted from the pattern in Figure 9(b), and instead, the adhesive 19 and double-sided tape 20 can be provided in a straight line in the short-side direction (vertical direction) at positions that divide the long side of the finishing material 10 into three equal parts. The double-sided tape 15 is provided in two parts on both sides of the adhesive 19 and double-sided tape 20. When pressing the finishing material 10 onto the wall base material 11, it is easier to move the pressing tool 1 vertically than horizontally, and in that respect, it is preferable to apply the adhesive 19 vertically as shown in Figure 9(c).

[0051] In this embodiment, the finishing material 10 was pressed onto the wall base material 11, but a similar pressing method can also be applied when pressing the finishing material 10 onto the ceiling base material 11. In this case, a combination of fixing the finishing material 10 to the base material 11 with fasteners such as nails or screws and pressing the finishing material 10 with adhesive can be used.

[0052] Preferred embodiments of the present invention have been described above with reference to the attached drawings, but the present invention is not limited to these examples. It will be obvious to those skilled in the art that various modifications or alterations can be conceived within the scope of the technical idea disclosed herein, and these will naturally also fall within the technical scope of the present invention. [Explanation of Symbols]

[0053] 1: Crimping tool 2: Handle 3: Holding part 4: Laura 5: Casing 6: Elastic body 7: Receiving part 10: Finishing materials 11: Substrate 12, 14, 16, 17, 19: Adhesive 13, 15, 18, 20: Double-sided tape 31: Long hole

Claims

1. A method of pressing a plate-shaped finishing material against a plate-shaped base material of a wall or ceiling, wherein the finishing material is pressed against the base material by an adhesive between the finishing material and the base material, Using a crimping tool having a handle, a roller, and an elastic body that transmits force between the handle and the roller, A method of crimping characterized by pressing the roller against the finishing material by holding the handle of the crimping tool, thereby pressing the roller against the finishing material with a force greater than the restoring force of the contracted elastic body, while moving the roller in the in-plane direction of the finishing material, thereby crimping the finishing material to the base material.

2. The crimping method according to claim 1, characterized in that the crimping tool is equipped with a stopper mechanism for limiting the contraction of the elastic body so that the elastic body does not contract further even when force is applied from the handle.

3. The crimping method according to claim 2, characterized in that when the force applied from the handle is 3 kg or more, the contraction of the elastic body is limited by the stopper mechanism.

4. The crimping tool has a pair of rollers, The ends of the pair of rollers are respectively attached to the pair of holding parts, and the handle is provided between the pair of holding parts. Both ends of the handle are fixed to the outer casing of the pair of holding parts through elongated holes provided in the pair of holding parts. One end of the elastic body is fixed inside the casing, and the other end of the elastic body is fixed to a receiving part provided in a pair of the holding parts. The crimping method according to claim 2, characterized in that the stopper mechanism comprises the casing and the receiving portion, and the contraction of the elastic body is restricted by the casing contacting the receiving portion.

5. The adhesive is provided in a straight line along the straight edge of the finishing material. The method of pressing according to claim 1, characterized in that the roller is moved linearly along the adhesive.

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