Clip

Abstract

To provide a clip having a small number of parts, a simple configuration, and an easy assembly.SOLUTION: In a clip 1-1, a resilient body 50 is installed between first and second clip bodies 10-1 and 10-2 that are installed opposite to each other, and both ends of the resilient body 50 are attached to attachment parts 15 provided on the respective first and second clip bodies 10-1 and 10-2. The first and second clip bodies 10-1 and 10-2 are supported by the resilient body 50 so as to be able to swing freely. The resilient body 50 made of a leaf spring includes a curved part 51, a pair of arm parts 53, and a clip body attachment part 61 provided in the pair of arm parts 53. The clip body attachment part 61 is configured by providing an engagement part 57 between a pair of slits 55 and by providing a pair of fixing parts 59 on the outer sides of both slits 55. The first and second clip bodies 10-1 and 10-2 are provided with a fixing part insertion part 19 into which the fixing part 59 of the resilient body 50 is inserted, and an engaged part 17 that is engaged with the engagement part 57 of the resilient body 50.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a clip that is used for various purposes, such as for clamping and fastening documents or for closing the mouth of an opened bag. [Background technology]

[0002] Conventionally, there has been a clip structured such that a pair of clip bodies, each having a clamping portion on one end and a knob portion on the other end, are connected so as to be able to swing, and a spring (resilient body) is attached around the connecting shaft to bring the clamping portions of the pair of clip bodies into elastic contact with each other (see, for example, Patent Document 1). With this type of clip, by clamping the knob portions of both clips, the clamping portions can be opened against the resilience of the spring, making it easy to clamp and fix documents or close the mouth of an opened bag. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2001-180164 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, the above-mentioned conventional clips have the following problems. (1) The structure of both clip bodies becomes complicated because a connecting structure must be formed on both clip bodies to connect them so that they can swing freely. Furthermore, if a separate shaft member or the like is attached to connect both clip bodies so that they can swing freely, the number of parts increases.

[0005] (2) The assembly work of connecting both clip bodies so that they can swing freely and attaching a spring between both clip bodies becomes complicated.

[0006] SUMMARY OF THE PRESENT INVETION The present invention has been made in consideration of the above-mentioned points, and an object of the present invention is to provide a clip which has a small number of parts, a simple structure, and can be easily assembled. [Means for solving the problem]

[0007] The clip according to the present invention has a structure in which a first clip body and a second clip body, each having a clamping portion on one end and a knob portion on the other end, are disposed opposite each other, a resilient body is disposed between the resilient body mounting surfaces which are the opposing surfaces of the first clip body and the second clip body, and clip body mounting portions provided on both ends of the resilient body are mounted to mounting portions provided on the resilient body mounting surface of the first clip body and mounting portions provided on the resilient body mounting surface of the second clip body, respectively, thereby supporting the first clip body and the second clip body so as to be freely swingable by the resilient body, and at the same time, the clamping portion of the first clip body and the clamping portion of the second clip body are elastically brought into contact with each other by the resilient force of the resilient body. The resilient body comprises a curved portion formed by curving the center of a leaf spring, a pair of arm portions extending from both sides of the curved portion, and the clip body mounting portion provided in the pair of arm portions. The clip body mounting portion of the resilient body is configured by providing a locking portion between the two slits by juxtaposing a pair of slits at the tip edge of the arm portions, and by providing a pair of fixing portions on the outside of the two slits. The mounting portion of the first clip body and the mounting portion of the second clip body are characterized in that they are configured having a fixing portion insertion portion into which the fixing portion of the resilient body is inserted to regulate the movement of the arm portion from the resilient body mounting surface, and an engaged portion that engages with the locking portion of the resilient body to regulate the movement of the arm portion on the resilient body mounting surface. According to the present invention, the clip can be constructed with only three parts: the first clip body, the second clip body, and the resilient body. Furthermore, since the elastic body supports the first clip body and the second clip body so that they can swing freely, there is no need to provide a connecting mechanism that directly connects the first clip body and the second clip body, which makes it possible to simplify the structure of the first clip body and the second clip body. The fixing portion of the spring body is inserted into the fixing portion insertion portion of each of the first clip body and the second clip body to restrict the arm portion from moving away from the spring body mounting surface, and the engaging portion of the spring body is engaged with the engaged portion of each of the first clip body and the second clip body to restrict movement of the arm portion on the spring body mounting surface, so that both arm portions of the spring body can be easily and reliably fixed to the first clip body and the second clip body.

[0008] Furthermore, in addition to the above-mentioned characteristics, the present invention is characterized in that the locking portion of the elastic body is configured with an locking opening provided within the locking portion, and the locked portion of the first clip body and the locked portion of the second clip body are configured with protrusions that lock into the locking openings of the elastic body. According to the present invention, the movement of the arm portion on the spring-loaded body mounting surface can be easily restricted by simply engaging the respective engaged portions of the first clip body and the second clip body with a pair of engaging openings in the spring-loaded body.

[0009] In addition to the above-mentioned features, the present invention is characterized in that the fixing portion insertion portion of the first clip body and the fixing portion insertion portion of the second clip body are configured with insertion grooves into which a pair of fixing portions of the elastic body can be slidably inserted from the clamping portion side toward the knob portion side. According to the present invention, the movement of the arm portion away from the spring body mounting surface can be easily restricted by simply slidably inserting a pair of fixing portions of the spring body into the insertion grooves of the first clip body and the second clip body, respectively.

[0010] Furthermore, in addition to the above-mentioned features, the present invention is characterized in that the fixing portion insertion portion of the first clip body and the fixing portion insertion portion of the second clip body are formed by a convex rib portion having three sides excluding the side on the clamping portion side of a rectangle surrounding the engaged portion of the spring-loaded body mounting surface, the insertion groove is provided on the opposing inner surfaces of the left and right sides of the three sides of the convex rib portion when viewed from the clamping portion side to the knob portion side, and the inner surface of the central side of the three sides of the convex rib portion serves as an abutment portion for abutting the tip edge of the arm portion of the spring-loaded body. According to the present invention, by providing a convex rib portion on each of the first clip body and the second clip body, a pair of insertion grooves can be easily formed, and at the same time, by abutting the tip edge of the arm portion against the abutment portion, the movement of the arm portion on the spring mounting surface can be regulated. Effect of the Invention

[0011] According to the present invention, the number of parts can be reduced, the structure is simple, and assembly work can be easily performed. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a perspective view of a clip 1-1. [Diagram 2] 2 is a cross-sectional view of the clip 1-1 (a cross-sectional view taken along line AA in FIG. 1). [Diagram 3] FIG. 2 is a perspective view of a first clip body 10-1 (or a second clip body 10-2). [Figure 4] 4 is an enlarged cross-sectional view of knob portion 31 (enlarged cross-sectional view taken along the arrow BB in FIG. 3). [Diagram 5] FIG. [Figure 6] 1 is a side view of a resilient body 50. FIG. [Figure 7] 7 is a view of the resilient body 50 as seen from the direction of the arrow C shown in FIG. 6. [Figure 8] 13 is a cross-sectional view showing a state in which a clip body attachment part 61 is attached to an attachment part 15. FIG. [Figure 9] 1 is a cross-sectional view illustrating a method of using the clip 1-1. FIG. [Figure 10] FIG. 2 is a perspective view of the clip 1-2. [Figure 11] FIG. 2 is a side view illustrating a method of using the clip 1-2. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Fig. 1 is a perspective view of a clip 1-1 according to one embodiment of the present invention, and Fig. 2 is a cross-sectional view of the clip 1-1 (cross-sectional view taken along line AA in Fig. 1). As shown in these figures, the clip 1-1 is configured to include a first clip body 10-1, a second clip body 10-2, and a resilient body 50. In the following description, "upper" refers to the direction when looking from the clamping portion 11 of the first and second clip bodies 10-1 and 10-2 to the gripping portion 31, and "lower" refers to the opposite direction.

[0014] Since the first clip body 10-1 and the second clip body 10-2 are the same, the same reference numerals are used for both, and the following description will mainly focus on the first clip body 10-1. Figure 3 is a perspective view (as viewed from the side of the resilient body mounting surface 13 described below) of the first clip body 10-1 (or the second clip body 10-2).

[0015] As shown in the figure, the first clip body 10-1 is an integrally molded product of synthetic resin, and is configured to be approximately flat and generally T-shaped, with one end (lower side) serving as a clamping portion 11 and the other end (upper side) serving as a knob portion 31. One surface of the first clip body 10-1 (the surface on which the resilient body 50 is installed) serves as a resilient body mounting surface 13.

[0016] The clamping portion 11 is formed in a generally rectangular flat plate shape that is long in the width direction. A clamping contact portion 12 having a linear concave-convex shape is formed in a portion near the lower end edge of the resilient body mounting surface 13 of the clamping portion 11 (the edge away from the knob portion 30) and extending in a direction along the edge.

[0017] The knob portion 31 is formed so as to protrude upward in a generally flat plate shape from the center of the upper side of the clamping portion 11. The spring body mounting surface 13 of the knob portion 31 is formed with a mounting portion 15 for mounting an arm portion 53 of the spring body 50 described below.

[0018] Fig. 4 is an enlarged cross-sectional view of knob portion 31 (enlarged cross-sectional view taken along line BB in Fig. 3). As shown in Fig. 4 and Fig. 3, attachment portion 15 is configured to include a protruding locked portion 17 provided substantially in the center of knob portion 31, and fixing portion insertion portion 19 which is a substantially U-shaped convex portion (linear protrusion) provided so as to surround the periphery of locked portion 17.

[0019] The locked portion 17 is a small protrusion that protrudes like a claw and has an inclined surface that is inclined in a direction away from the resilient body mounting surface 13 from the clamping portion 11 side toward the knob portion 31 side.

[0020] The fixing part insertion part 19 is configured with a convex part formed in a substantially U-shape surrounding the locked part 17. That is, the fixing part insertion part 19 is configured with three convex sides 19A, 19B, 19C of a substantially U-shape excluding the side on the clamping part 11 side of the rectangle surrounding the locked part 17. Linear slit-shaped insertion grooves 21, 21 are formed on the inner surfaces facing the left and right sides 19A, 19C when the fixing part insertion part 19 is viewed from the clamping part 11 side. The inner surface of the other central side 19B is the same linear surface over the entire surface including the portion where the insertion grooves 21, 21 are provided, and this surface is used as the abutment part 23 against which the tip edge 53a of the arm part 53 of the resilient body 50 described below abuts.

[0021] 5 to 7 are diagrams showing the resilient body 50 in a state where no force is applied, with Fig. 5 being a perspective view, Fig. 6 being a side view, and Fig. 7 being a view of Fig. 6 as seen from the direction of arrow C. As shown in these diagrams and Fig. 2, the resilient body 50 is made of a substantially flat rectangular leaf spring material, with the central portion of the leaf spring being curved with a desired radius of curvature to form a curved portion 51, and linear portions extending from both sides of the curved portion 51 being configured as a pair of arm portions 53, 53. Both arm portions 53, 53 are shaped to move apart (open) toward the tip.

[0022] A pair of slits 55, 55 are provided in parallel to each other in the tip edges 53a, 53a of the pair of arm portions 53, 53 so as to cut out the tip edges 53a, 53a of the pair of arm portions 53, 53, whereby the portion between the two slits 55, 55 of each arm portion 53 serves as an engagement portion 57, and the outer portions of the two slits 55, 55 serve as a pair of fixing portions 59, 59. The engagement portion 57 and the fixing portions 59, 59 provided in each arm portion 53 are referred to as a clip body attachment portion 61 that is attached to the attachment portion 15 of each of the first and second clip bodies 10-1, 10-2.

[0023] The locking portion 57 is configured by providing therein a rectangular locking opening 63 having a size for locking the locked portions 17 of the first and second clip bodies 10-1 and 10-2.

[0024] To assemble the clip 1-1, the tip portions of the pair of arms 53, 53 of the resilient body 50, i.e., the clip body mounting portions 61, 61, are attached to the mounting portions 15 of the first and second clip bodies 10-1, 2, respectively. The mounting method is to insert the left and right fixing portions 59 of the clip body mounting portion 61 into the insertion grooves 21 by sliding movement from the underside of the fixing portion insertion portion 19 of the mounting portion 15, i.e., from the clamping portion 11 side toward the knob portion 31 side, and bring the tip edge 53a of the fixing portion 59 into contact with the contact portion 23 of the edge 19B. During this sliding movement, at the same time, the tip edge 53a of the locking portion 57 at the center of the clip body mounting part 61 is brought into contact with the locked part 17 and slid on the inclined surface of the locked part 17, thereby moving (floating) the locking part 57 in a direction away from the resilient body mounting surface 13, and then the locked part 17 is inserted into the locking opening 63 and at the same time the locking part 57 is brought into contact with the resilient body mounting surface 13 again, i.e., snap-in engagement, and at the same time the tip edge 53a of the locking part 57 is brought into contact with the contact part 23 of the side 19B. Figure 8 is a cross-sectional view (cross-sectional view of the same part as in Figure 4) showing the state in which the clip body mounting part 61 is mounted to the mounting part 15.

[0025] As a result, the fixing portion 59 of the spring body 50 is inserted into the fixing portion insertion portion 19 of each of the first and second clip bodies 10-1 and 2 to restrict the arm portion 53 from moving away from the spring body mounting surface 13, and the engaging portion 57 of the spring body 50 is engaged with the engaged portion 17 of each of the first and second clip bodies 10-1 and 2 to restrict the movement of the arm portion 53 on the spring body mounting surface 13, and further the tip edge 53a of the arm portion 53 of the spring body 50 is abutted against the abutment portion 23 of each of the first and second clip bodies 10-1 and 2 to restrict the movement of the arm portion 53 on the spring body mounting surface 13, so that both arm portions 53 of the spring body 50 can be easily and reliably fixed to the first and second clip bodies 10-1 and 2.

[0026] 1 and 2, the first clip body 10-1 and the second clip body 10-2 are installed so that their resilient body mounting surfaces 13 face each other, and the resilient body 50 is installed between the resilient body mounting surfaces 13. The resilient force of the resilient body 50 causes the clamping abutment surfaces 12 of the clamping portions 11 of the first and second clip bodies 10-1 and 10-2 to come into resilient contact with each other.

[0027] 9, when the knob portions 31, 31 of the first and second clip bodies 10-1, 2 are clamped in a direction in which they approach each other, the degree of curvature of the curved portion 51 of the resilient body 50 increases, and the first and second clip bodies 10-1, 2 swing about the curved portion 51, opening between the two clamping abutment surfaces 12. In this state, when an opening of a document or a bag is inserted between the two clamping abutment surfaces 12 and the clamping between the knob portions 31 is released, the two clamping abutment surfaces 12 close, and the opening of the document or bag can be clamped.

[0028] Fig. 10 is a diagram showing a clip 1-2 according to a second embodiment. In the clip 1-2 shown in the figure, the same or corresponding parts as those of the clip 1-1 according to the embodiment shown in Figs. 1 to 9 are denoted by the same reference numerals. Note that matters other than those described below are the same as those in the embodiment shown in Figs. 1 to 9.

[0029] The only difference between this clip 1-2 and the clip 1-1 is that a stopper 41 is provided on each of the first and second clip bodies 10-1, 2. The stopper 41 is formed so as to protrude a predetermined distance from the back surface of one side 19A on which the insertion groove 21 of the fixing portion insertion part 19 is provided. The stopper 41 is formed in a triangular flat plate shape.

[0030] When the two gripping portions 31 of the clip 1-2 thus constructed are clamped, the clamping contact surfaces 12 open apart as shown in Fig. 11, but as they open, the tip of the stopper 41 comes into contact with the back surface of the opposing side 19C of the other fixed portion insertion portion 19, preventing them from opening any further. This makes it possible to regulate the amount by which the clamping contact surfaces 12 open apart, and to prevent them from opening too far.

[0031] If the resilience of the resilient body 50 can be increased by adjusting the material and thickness of the resilient body 50 to prevent excessive opening, excessive opening can be prevented without providing the stopper 41. Also, if the first and second clip bodies 10-1 and 10-2 are configured to open until the upper ends of the knob portions 31 and 31 come into contact with each other, it goes without saying that the stopper 41 is not necessary.

[0032] As described above, the clips 1-1 and 1-2 are configured by placing the first clip body 10-1 and the second clip body 10-2, each having the clamping portion 11 on one end and the knob portion 31 on the other end, facing each other, placing the resilient body 50 between the resilient body mounting surfaces 13, which are the opposing surfaces of the first clip body 10-1 and the second clip body 10-2, and attaching the clip body mounting portions 61 provided on both ends of the resilient body 50 to the mounting portions 15 provided on the resilient body mounting surface 13 of the first clip body 10-1 and the mounting portions 15 provided on the resilient body mounting surface 13 of the second clip body 10-2, respectively. In this way, the first clip body 10-1 and the second clip body 10-2 are supported by the resilient body 50 so as to be able to swing freely, and at the same time, the clamping portion 11 of the first clip body 10-1 and the clamping portion 11 of the second clip body 10-2 are supported by the resilient body 50. The structure is such that the spring body 50 is brought into elastic contact by elastic force, and the spring body 50 comprises a curved portion 51 formed by curving the center of a leaf spring, a pair of arm portions 53 extending from both sides of the curved portion 51, and the clip body mounting portion 61 provided in the pair of arm portions 53. The clip body mounting portion 61 is configured by providing a pair of slits 55 next to the tip edge 53a of the arm portion 53, thereby providing a locking portion 57 between the two slits 55, and by providing a pair of fixed portions 59 on the outside of the two slits 55. The mounting portion 15 of the first clip body 10-1 and the mounting portion 15 of the second clip body 10-2 are configured to have a fixed portion insertion portion 19 into which the fixed portion 59 of the spring body 50 is inserted to restrict the arm portion 53 from moving away from the spring body mounting surface 13, and an engaged portion 17 that engages with the locking portion 57 of the spring body 50 to restrict the movement of the arm portion 53 on the spring body mounting surface 13.

[0033] Moreover, since the clips 1-1 and 1-2 are made up of only three parts, the first clip body 10-1, the second clip body 10-2, and the resilient body 50, the number of parts can be reduced.

[0034] Furthermore, since the resilient body 50 itself is configured to support the first clip body 10-1 and the second clip body 10-2 so that they can swing freely, there is no need to provide a connecting mechanism that directly connects the first clip body 10-1 and the second clip body 10-2, and the structure of the first clip body 10-1 and the second clip body 10-2 can be simplified.

[0035] In addition, the fixing portions 59 on both sides of the clip body mounting portion 61 of the springy body 50 are inserted into the fixing portion insertion portions 19 of the first clip body 10-1 and the second clip body 10-2, respectively, to restrict the arm portion 53 from moving away from the springy body mounting surface 13, and the locking portion 57 in the center of the clip body mounting portion 61 of the springy body 50 is locked to the locked portions 17 of the first clip body 10-1 and the second clip body 10-2, respectively, to restrict the movement of the arm portion 53 on the springy body mounting surface 13. Therefore, both arm portions 53 of the springy body 50 can be easily and reliably fixed to the first clip body 10-1 and the second clip body 10-2.

[0036] Furthermore, in clips 1-1 and 1-2, the engaging portion 57 of the spring body 50 is configured by providing an engaging opening 63 within the engaging portion 57, and the engaged portion 17 of the first clip body 10-1 and the engaged portion 17 of the second clip body 10-2 are configured by protrusions that engage with the engaging opening 63 of the spring body 50, so that movement of the arm portion 53 on the spring body mounting surface 13 can be easily restricted.

[0037] In addition, in the clips 1-1 and 1-2, the fixing portion insertion portion 19 of the first clip body 10-1 and the fixing portion insertion portion 19 of the second clip body 10-2 are configured with insertion grooves 21 into which the pair of fixing portions 59 of the spring body 50 are slidably inserted from the clamping portion 11 side toward the knob portion 31 side. Therefore, simply by slidably inserting the pair of fixing portions 59 of the spring body 50 into the insertion grooves 21 of the first clip body 10-1 and the second clip body 10-2, the separation of the arm portion 53 from the spring body mounting surface 13 can be easily regulated.

[0038] In addition, in the clips 1-1 and 1-2, the fixed portion insertion portion 19 of the first clip body 10-1 and the fixed portion insertion portion 19 of the second clip body 10-2 are configured as convex rib portions 19 having three sides 19A to 19C of a rectangle surrounding the engaged portion 17 of the spring-loaded body mounting surface 13, excluding the side on the clamping portion 11 side, and insertion grooves 21 are provided on the opposing inner surfaces of the left and right sides 19A, 19C of the convex rib portion 19 when viewed from the clamping portion 11 side to the knob portion 31 side, and the inner surface of the central side 19B of the convex rib portion 19 is configured as an abutment portion 23 with which the tip edge 53a of the arm portion 53 of the spring-loaded body 50 abuts. Therefore, the insertion grooves 21 can be easily formed, and by abutting the tip edge 53a of the arm portion 53 against the abutment portion 23, the movement of the clip body mounting portion 61 on the spring-loaded body mounting surface 13 can be regulated.

[0039] Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible within the scope of the claims and the technical ideas described in the specification and drawings. Any shape, structure, or material not directly described in the specification and drawings is within the scope of the technical ideas of the present invention as long as it achieves the functions and effects of the present invention. For example, the shape and structure of the first and second clip bodies 10-1 and 10-2 and the spring body 50 can be modified in various ways. In addition, the embodiments described above and shown in each drawing can be combined with each other as long as there is no contradiction in their purpose and configuration. In addition, even if only a part of the contents described above and in each drawing can be an independent embodiment, and the embodiment of the present invention is not limited to one embodiment obtained by combining the above description and each drawing. [Explanation of symbols]

[0040] 1-1,1-2 Clip 10-1 First clip body 10-2 Second clip body 11 Clamping part 13 Elastic body mounting surface 15 Mounting part 17 Locked part (protrusion) 19 Fixation part insertion part (convex part) 21 Insertion groove 23 Contact part 31 Knob 50 Resilient Body 51 Curved section 53 Arm section 53a Tip edge 55 Slit 57 Locking part 59 Fixed part 61 Clip body attachment part 63 Locking opening

Claims

1. A first clip body and a second clip body each having a clamping portion on one end and a knob portion on the other end are disposed opposite each other; A resilient body is installed between the first clip body and the resilient body mounting surface which is the opposing surface of the second clip body, The clip body mounting portions provided on both ends of the resilient body are respectively attached to a mounting portion provided on the resilient body mounting surface of the first clip body and a mounting portion provided on the resilient body mounting surface of the second clip body, so that the first clip body and the second clip body are supported by the resilient body so as to be freely swingable, and at the same time, the clamping portion of the first clip body and the clamping portion of the second clip body are elastically brought into contact with each other by the elastic force of the resilient body, The elastic body includes a curved portion formed by curving the center of a leaf spring, a pair of arm portions extending from both sides of the curved portion, and the clip body attachment portion provided in the pair of arm portions, The clip body mounting portion of the resilient body is configured by providing a pair of slits at the tip edge of the arm portion, providing a locking portion between the two slits, and providing a pair of fixing portions on the outside of the two slits, A clip characterized in that the mounting portion of the first clip body and the mounting portion of the second clip body are configured to have a fixing portion insertion portion into which the fixing portion of the spring body is inserted to regulate the movement of the arm portion from the spring body mounting surface, and an engaged portion that engages with the engaging portion of the spring body to regulate the movement of the arm portion on the spring body mounting surface.

2. 2. The clip of claim 1, The locking portion of the elastic body is configured by providing a locking opening therein, A clip, characterized in that the locked portion of the first clip body and the locked portion of the second clip body are constituted by protrusions that are locked into locking openings of the resilient body.

3. 3. The clip of claim 2, A clip characterized in that the fixing portion insertion portion of the first clip body and the fixing portion insertion portion of the second clip body are configured with insertion grooves into which a pair of fixing portions of the elastic body are slidably inserted from the clamping portion side toward the knob portion side.

4. 4. The clip of claim 3, The fixing portion insertion portion of the first clip body and the fixing portion insertion portion of the second clip body are formed by a convex portion having three sides excluding the side on the clamping portion side of a rectangle surrounding the locked portion of the elastic body mounting surface, The insertion groove is provided on inner surfaces of the opposite left and right sides of the three sides of the protruding strip when viewed from the clamping portion side to the knob portion side, A clip characterized in that an inner surface of a central side of the three sides of the convex strip portion is configured as an abutment portion with which the tip edge of the arm portion of the elastic body abuts.

Images