JPH0544667U - Spring type clip material - Google Patents

Abstract

(57) [Abstract] [Purpose] A spring capable of firmly holding the enlarged portion 13 of the protrusion 11 of the meter hood M in the holding portion 33 and setting a small insertion force of the enlarged portion 13 of the protrusion 11 of the meter hood M. It is possible to provide the clip material 1. [Structure] An insertion opening 23 into which the enlarged portion 13 of the protrusion 11 can be inserted
And a frame body portion 25 having upper and lower ends 25a,
25b and an extending portion 27 extending to the instrument panel I side, and upper and lower sides 7a and 7b of the hole portion 7 projecting outward from the extending portion 27 and on the back surface Ia side of the instrument panel I. Engaging claws 29 for engaging with the left and right ends 25c, 25d of the frame portion 25, and engaging with left and right sides 7c, 7d of the hole portion 7 on the front surface Ib side of the instrument panel I. The piece 31 and the enlarged portion 1 of the protrusion 11 are extended inward so as to be opposed to each other from the tip of the extending portion, bent and extended toward the insertion port 23 side.
And a sandwiching portion 33 for sandwiching 3 between the surfaces facing each other.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 In order to elastically engage the enlarged portion at the tip of the projection provided on the meter hood or the like, which is inserted into the mouth-shaped hole provided on the instrument panel, the present invention is adopted. The present invention relates to an improvement of a spring type clip material interposed between them.

[0002]

[Prior Art]

 Conventionally, as such a spring-type clip member, for example, as disclosed in Japanese Utility Model Laid-Open No. 60-173419, an insertion port through which an enlarged portion of a protrusion of a second member such as a meter hood can be inserted. And a first engaging member that is protruded outward from both ends facing each other with respect to the periphery of the insertion opening and engages with the periphery of the hole portion on the front surface side of the first member such as the instrument panel. The joint piece and the enlarged portion of the projection are extended from both ends of the insertion opening so as to be insertable toward the hole portion side of the first member, and the enlarged portion of the projection inserted through the insertion opening is sandwiched. A holding part formed in a matching shape and a base end of the holding part that corresponds to the base end of the enlarged part of the protrusion are opposed to each other so as not to separate the enlarged part of the protrusion held by the holding part. The narrow part that holds the enlarged part of the protrusion by bringing the surface closer to the inner side, and the above Projecting from the base end side of the sandwiching member outwardly, that a second engaging piece which engages are known in the periphery of the hole on the back side of the first member. Then, in this case, the enlarged portion of the protrusion of the second member is inserted from the hole of the first member through the insertion port of the spring-type clip material, and then the narrowed portion of the spring-type clip material is pushed outward and expanded. However, it is firmly held in the holding section.

[0003]

[Problems to be solved by the device]

 By the way, in the above-mentioned conventional device, when the enlarged portion of the protrusion of the second member is inserted, the narrow portion of the spring type clip member is pushed outward while being held in the holding portion. In that case, since the second engaging piece projecting outward from the base end side of the holding portion is engaged with the periphery of the hole on the back surface side of the first member, the enlarged portion of the protrusion When a force that pushes the narrow portion outwards is applied during insertion, the second engaging piece moves outward while scratching the periphery of the hole on the back side of the first member. This means that when inserting the enlarged part of the protrusion of the second member into the holding part through the insertion hole of the spring type clip material into the hole of the first member, the force that pushes the narrow part outwards. And a force for moving the second engagement piece outward while scratching the periphery of the hole on the back surface side of the first member, and a considerably large insertion force is required.

The present invention has been made in view of the above point, and an object thereof is to firmly hold the enlarged portion of the protrusion of the second member in the holding portion and to increase the enlarged portion of the protrusion of the second member. The purpose is to provide a spring-type clip material that can set the insertion force of the.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, a solution means devised by the device according to claim 1 is a first member having a mouth-shaped hole, and an enlarged portion inserted into the hole of the first member at the tip. It is premised on a spring-type clip member that elastically engages with a second member having a provided projection. The frame body portion is provided with an insertion opening through which the enlarged portion of the protrusion can be inserted, and the frame body portion corresponding to opposite sides of the periphery of the hole of the first member. An extending portion that is insertably extended to the hole portion side of the first member, an engaging claw that engages with the periphery of the hole portion on the back surface side of the first member, and the above-mentioned An engaging piece that engages with the periphery of the hole on the front surface side of the first member and an inwardly extending, bent and extending toward the insertion opening side so as to face each other from the tip of the extending portion. A sandwiching portion for sandwiching the enlarged portion of the protrusion inserted through the insertion opening between the surfaces facing each other is provided.

Further, the solution means devised by the invention according to claim 2 is based on the spring-type clip material according to claim 1, and is provided with an insertion port into which the enlarged portion of the protrusion of the second member can be inserted. It is provided at both ends of the frame body portion and the frame body portion corresponding to two opposite sides of each periphery of the hole portion of the first member, and can be inserted into the hole portion side of the first member from both ends thereof. An extended extending portion, engaging claws that engage with the periphery of the hole on the back surface side of the first member, and hole portions on the front surface side of the first member provided at both ends of the frame body portion. And an engaging piece that engages with the periphery of the protrusion and extends inward so as to face each other from the tip of the extending portion, and prevents further insertion of the enlarged portion of the protrusion inserted through the insertion opening. The first holding part, which holds the two facing surfaces, and the insertion opening corresponding to the extending part face each other. The second holding part which extends inward from the surroundings and holds the enlarged part of the projection, which is prevented from being inserted further by the first holding part, between the opposing surfaces so as not to be separated from the insertion opening side. It is configured to include and.

[0007]

[Action]

 With the above structure, in the device according to the first aspect, the spring-type clip member is outside the extension portion extending from the frame portion corresponding to the sides of the hole of the first member facing each other. The engaging claws projecting in one direction engage with the periphery of the hole on the rear surface side of the first member, and the engaging piece provided on the frame body section allows the hole on the front surface side of the first member to be engaged. Is engaged with and attached to the periphery of.

In that case, the enlarged portions provided at the tips of the protrusions of the second member that are inserted into the holes of the first member through the insertion openings of the spring-type clip members are closer to each other than the tips of the extending portions. Since the facing surface of the second member is sandwiched between the facing surfaces that extend toward the insertion opening while being bent and bent, the enlarged portion of the protrusion of the second member is not supported. Even if it is inserted from the hole of the first member through the insertion port of the ring-shaped clip material, the surfaces facing each other are extended inward from the tip of the extending portion and the bent portion is a fulcrum. As a result, only the tip (extended end) of the holding portion extended from the bent portion to the insertion opening side is pushed outward, and the enlarged portion of the protrusion is firmly held inside the holding portion. Even if the tip of the holding part is pushed outward when the enlarged part is inserted, the engaging piece should be on the back side of the first member. The hole of the first member does not move outward while scratching the periphery of the hole, and the enlarged portion of the protrusion of the second member is inserted into the hole of the first member through the insertion port of the spring-type clip material. When inserting into the holding part, it is inserted with a small insertion force.

Further, in the invention according to claim 2, the enlarged portion provided at the tip of the protrusion of the second member inserted into the hole of the first member through the insertion opening of the spring type clip member is With the first holding part between the opposing surfaces, which extend inwardly with respect to each other from the tips of the extending parts, further insertion of the enlarged portion of the protrusion inserted through the insertion opening can be prevented. While being held so as to prevent it, the second holding portion between the facing surfaces extending inward from the surroundings of the insertion opening corresponding to the extending portion prevents further insertion by the first holding portion. Since the enlarged portion of the protruding projection is held so as not to be separated from the insertion opening side, even if the enlarged portion of the projection is inserted from the hole of the first member through the insertion opening of the spring-type clip material, it does not extend. The surroundings of the insertion opening corresponding to the projecting part facing each other are used as fulcrums The enlarged part of the protrusion is held more firmly by both holding parts while reaching the first holding part while only the second holding part between the opposing surfaces extending inward is being pushed outward. Therefore, when the enlarged portion of the protrusion is inserted, the engaging piece does not move outward while scratching the periphery of the hole on the back surface side of the first member, and the engaging piece does not move to the hole of the first member. On the other hand, when the enlarged portion of the protrusion of the second member is inserted into the holding portion through the insertion port of the spring type clip member, it is inserted with a small insertion force.

[0010]

[Effect of the device]

 As described above, according to the spring type clip member of the invention of claim 1, the mutually opposing surfaces are extended inward from the tip of the extending portion and are bent and extended toward the insertion opening side. The enlarged portion at the tip of the protrusion of the second member inserted through the insertion opening into the hole of the first member is clamped by the sandwiching portion between the opposing surfaces of the first member. When the insert member is inserted from the hole of the first member through the insertion port of the first member, the surfaces facing each other extend inward from the tip of the extending portion and the bent portion is used as a fulcrum to hold the tip of the holding portion. Only the outside can be pushed outward to firmly hold the enlarged part of the protrusion in the holding part, and the protrusion of the second part can be enlarged through the insertion hole of the spring type clip material to the hole of the first member. It is possible to set a small insertion force when inserting the part into the holding part.

Further, according to the spring type clip member in the invention of claim 2, the first sandwiching portion between the facing surfaces, which extends inward from the front end of the extending portion, makes it possible The enlarged part at the tip of the protrusion of the second member inserted through the insertion port into the hole of the first part is held so as to prevent further insertion, and the insertion ports corresponding to the extension parts face each other. The second holding part between the facing surfaces extending inward from the periphery holds the enlarged part of the protrusion that prevented further insertion by the first holding part so as not to be separated from the insertion opening side. , When the enlarged part of the protrusion is inserted from the hole of the first member through the insertion hole of the spring type clip member, the opposite sides of the insertion ports corresponding to the extension parts are used as fulcrums and the inner side Do not push outward only the second holding part between the facing surfaces that extend to Further, the enlarged portion of the protrusion can be more firmly held by both the holding portions while reaching the first holding portion, and the second member is inserted into the hole of the first member through the insertion port of the spring type clip member. It is possible to set a small insertion force when inserting the enlarged part of the projection of the inside of the holding part.

[0012]

【Example】

 Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

FIGS. 3 and 4 show a spring-type clip interposed between the instrument panel I as the first member and the meter hood M as the second member so as to engage with each other. The material 1 is shown, and this spring-type clip material 1 enables elastic engagement of the meter hood M with the instrument panel I.

The instrument panel I is made of synthetic resin, and the front end face 3 of the substantially cylindrical meter hood M, which is also made of synthetic resin, is attached to the instrument panel I. The mounting surface 5 of the instrument panel I corresponding to the front end surface 3 of the meter hood M is formed in a vertical plane so as to face the front end surface 3 of the meter hood M, and is arranged at predetermined intervals in the circumferential direction. A mouth-shaped hole 7 (only one place is shown in the figure) is provided.

On the other hand, on the front end face 3 of the meter hood M, a hole is formed at a predetermined interval with respect to the mounting surface 5 of the instrument panel I so that parallel accuracy with the mounting surface 5 is maintained. 7 are provided with protruding ribs 9 ,. Further, on the front end face 3 of the meter hood M sandwiched by the projecting ribs 9, the projections 11 (in the figure, one that protrudes toward the hole portion 7 side so as to correspond to the hole portions 7 of the instrument panel I, respectively). Only the points are shown). An enlarged portion 13 to be inserted into the hole portion 7 of the instrument panel I is provided at the tip of the protrusion 11 which is separated from the front end surface 3 of the meter hood M by a predetermined distance. The enlarged portion 13 is formed in a cylindrical shape having an axis substantially parallel to the front end surface 3 of the meter hood M.

The spring-type clip member 1 is provided between the hole 7 of the instrument panel I and the enlarged portion 13 of the protrusion 11 of the meter hood M, and the instrument panel I The enlarged portion 13 of the protrusion 11 of the meter hood M is elastically engaged with the hole 7.

As shown in FIGS. 1 and 2, the spring-type clip member 1 has a substantially rectangular shape with a substantially square insertion opening 23 provided at the center thereof, into which the enlarged portion 13 of the protrusion 11 can be inserted. Corresponding to the upper side 7a and the lower side 7b of each of the upper, lower, left and right peripheral portions 7a, 7b, 7c, 7d of the hole portion 7 of the instrument panel I, which face each other in the vertical direction, Extending portions 27, 27 which are provided at upper and lower ends 25a, 25b of the frame body portion 25 in the short side direction and extendable from the upper and lower ends 25a, 25b to the hole portion 7 side of the instrument panel I. And projecting outward in a diagonally upward direction from the tips of the extension portions 27 located on the diagonals, and at the upper side 7a and the lower side 7b of the hole 7 on the back surface Ia side of the instrument panel I. Liaison The mating engagement claws 29, 29 and the remaining left side 7c and right side 7d facing each other in the left-right direction of the upper, lower, left, and right peripheries 7a, 7b, 7c, 7d of the hole 7 of the instrument panel I, respectively. Engaging pieces 31, 31 provided at left and right ends 25c, 25d in the long side direction of the corresponding frame body section 25 and engaging with the left side 7c and the right side 7d of the hole section 7 on the front surface Ib side of the instrument panel I, respectively. The projections formed in the extending portions are extended inward from the distal ends of the extending portions 27 so as to face each other obliquely downward, are bent, and extend toward the insertion opening 23 side. 11 is provided with a holding portion 33 for elastically holding the enlarged portion 13 inserted through the insertion port 23 between the opposing surfaces of the arcuate shape having a curvature that substantially matches the outer peripheral surface of the enlarged portion 13. There is. In addition, the tip of the holding portion 33 is bent outward so that the enlarged portion 13 inserted through the insertion opening 23 can be smoothly inserted into the holding portion 33, and the holding portion 33 has a distal end. The base end, that is, the bent portion that extends inward and is bent obliquely downward from the tips of the extending portions 27 so as to face each other, and the bent portion is the enlarged portion 13 inserted in the holding portion 33. The space between the facing surfaces is narrowed so as to prevent further insertion.

Further, the insertion port 23 of the frame body portion 25 has first facing sides (2 sides) 23a, 23a which are formed to be slightly longer than the axial length of the enlarged portion 13 and face each other in the front-rear direction. Both sides have second opposing sides 23b, 23b which are adjacent to the first opposing sides 23a, 23a and have a length substantially corresponding to the first opposing sides 23a, 23a, and are opposed to each other on the left and right.

Here, the procedure for attaching the meter hood M to the instrument panel I will be described. First, in the hole 7 of the instrument panel I, the frame body portion 25 of the spring type clip material 1 is provided. The extending portions 27, 27 extended from the upper and lower ends 25a, 25b are inserted. By inserting each of the extending portions 27, the engaging claws 29 projecting outward from the diagonally-located tips of the extending portions 27 are provided with the upper side 7a of the hole 7 on the rear surface Ia side of the instrument panel I. And the lower side 7b, respectively, and the engaging pieces 31 provided on the left and right ends 25c and 25d of the frame body section 25 are engaged with the left side 7c and the right side 7d of the hole 7 on the front surface Ib side of the instrument panel I. Then, the attachment of the spring type clip member 1 to the hole 7 of the instrument panel I is completed.

Next, the enlarged portion 13 provided at the tip of the protrusion 11 of the meter hood M is inserted into the insertion opening 23 of the spring-type clip member 1, and the protruding ribs 9 and 9 on the front end face 3 of the meter hood M are inserted. Are made to abut the mounting surface 5 of the instrument panel I at a predetermined interval and are brought into contact with the peripheral edge of the hole portion 7 so as to face each other obliquely downward from the tips of the respective extension portions 27. Of the protrusions 11, which are formed in the extended portion that extends inward and is bent and extends toward the insertion port 23, are arcuately opposed to each other and have a curvature substantially matching the outer peripheral surface of the enlarged portion 13 of the protrusion 11. The sandwiched portion 33 formed between the surfaces elastically sandwiches the enlarged portion 13 inserted through the insertion port 23. As a result, the meter hood M is elastically attached to the instrument panel I via the spring type clip member 1.

As described above, the spring-type clip member 1 faces diagonally upward from the tips of the extension portions 27 extending from the upper and lower ends 25a and 25b of the frame body portion 25 in the short side direction, which are located diagonally. The engaging claws 29 projecting outwardly are engaged with the upper side 7a and the lower side 7b of the hole 7 on the back surface Ia side of the instrument panel I 1, respectively, and the left and right ends of the frame body portion 25 in the long side direction. 25c and 25d are engaged with the left side 7c and the right side 7d of the hole portion 7 on the front surface Ib side of the instrument panel I by the engaging pieces 31 1 and 31 and are attached to the hole portion of the instrument panel I 1. The enlarged portion 13 provided at the tip of the projection 11 of the metal hood M, which is inserted into the spring-type clip member 1 through the insertion opening 23 of the spring-type clip member 1, is different from the tip of each extending portion 27. The protrusions that extend inward so as to face each other in a diagonally downward direction and are bent and then extend toward the insertion opening 23 have a curvature that substantially matches the outer peripheral surface of the enlarged portion 13 of the protrusion 11. It is elastically sandwiched by the sandwiching portions 33 formed between arcuate facing surfaces. From this, even if the enlarged portion 13 at the tip of the protrusion 11 of the meter hood M is inserted from the hole 7 of the instrument panel I through the insertion port 23 of the spring-type clip material 1, each extension 27 of the instrument panel I is inserted. Extending inward so as to face each other diagonally downward from the tip and extending from the bent portion toward the insertion opening 23 side with the bent portion bent as a fulcrum, and then extending toward the insertion opening 23 side. Only the tip (extended end) of the holding portion 33 is pushed outward so that the enlarged portion 13 of the protrusion 11 can be firmly held inside the holding portion 33. In addition, even if the tip of the gripping portion 33 is pushed outward when the enlarged portion 13 is inserted, the engagement pieces 31 are against the upper side 7a and the lower side 7b of the hole 7 on the back surface Ia side of the instrument panel I. The instrument panel I does not move outward while being scratched, and the enlarged portion 13 of the protrusion 11 of the meter hood M is inserted into the hole 7 of the instrument panel I through the insertion port 23 of the spring type clip member 1. It is possible to set a small insertion force when inserting into the holding portion 33.

Next, a second embodiment of the present invention will be described with reference to FIGS.

The second embodiment is a modification of the configuration of the holding portion 33 of the first embodiment. The same parts as those in the above embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

That is, in this example, the tips of the extension portions 27 extend inward in a diagonally downward direction from the tips of the extension portions 27, are bent in a U-shaped cross section, and are inserted through the insertion opening 23. The first holding part 41 that holds between the facing surfaces that are close to each other so as to prevent further insertion of the enlarged part 13 at the tip of the protrusion 11 and the upper and lower sides of the insertion ports 23 corresponding to the extension parts 27. Of the bulge 11 extending inward from the first facing sides 23a, 23a facing diagonally downward so as to face each other in an obliquely downward direction, and being prevented from being inserted further by the first holding portion 41. A holding portion 43 is configured by a second holding portion 42 that holds between the facing surfaces that are close enough to each other so that 13 can be inserted so as not to separate from the insertion opening 23 side.

As a result, the enlarged portion 13 provided at the tip of the protrusion 11 of the meter hood M, which is inserted into the hole 7 of the instrument panel I through the insertion opening 23, is oblique to the tip of the extending portion 27. The enlarged portion 13 of the protrusion 11 inserted through the insertion opening 23 is caused by the first holding portion 41 between the facing surfaces having the bent portions having a substantially U-shaped cross section that are brought inward so as to face each other downward. It is sandwiched so as to prevent further insertion, and extends inwardly so as to face each other obliquely downward from the upper side 23a and the lower side 23b of the insertion port 23 corresponding to each extension 27, which are vertically opposed to each other. The second holding portion 42 between the facing surfaces of the projection 11 holds the enlarged portion 13 of the projection 11 which is prevented from being inserted further by the first holding portion 41 so as not to be separated from the insertion opening 23 side. Ta Even if the enlarged portion 13 of the protrusion 11 of the hood M is inserted from the hole 7 of the instrument panel I through the insertion opening 2 of the spring type clip member 1, the upper and lower sides of the insertion opening 23 corresponding to each extension 27 are inserted. Only the second holding part 42 between the facing surfaces extending inwardly obliquely downward from the first facing sides 23a, 23a with the first facing sides 23a, 23a facing each other as a fulcrum spreads outwardly. The enlarged portion 13 of the protrusion 11 can be more firmly held by the holding portions 43 (first and second holding portions 41, 42) while reaching the first holding portion 41 while being held. Moreover, even if the tip of the gripping portion 33 is pushed outward when the enlarged portion 13 is inserted, the engaging pieces 31 are located on the upper side 7a and the lower side 7b of the hole 7 on the back surface Ia side of the instrument panel I. On the other hand, the protrusion 11 of the meter hood M does not move to the outside while being scratched, and the enlarged portion of the protrusion 11 of the meter hood M is inserted into the hole 7 of the instrument panel I through the insertion port 23 of the spring clip member 1. The insertion force when inserting 13 into holding part 33 can also be set small.

It should be noted that the present invention is not limited to the above-mentioned two embodiments, and includes various other modified examples. For example, in the above-described embodiment, the insertion opening 23 and the frame body portion 25 of the spring type clip material 1 have a substantially square shape similar to the hole portion 7 of the instrument panel I. However, the insertion opening and the frame body portion are square or more or It may be formed in a substantially circular shape.

Further, in each of the above-described embodiments, the pair of extending portions 27 and the pair of engaging claws 29 are provided on the same side of the frame body portion 25. However, the pair of extending portions are provided relative to the frame body portion. The pair of engaging claws may be provided on the opposite sides and on the other opposing sides of the frame body portion.

Further, in the above-mentioned embodiment, the enlarged portion 13 of the protrusion 11 of the meter hood M has a cylindrical shape, but it may have a polygonal column-shaped enlarged portion such as a quadrangular prism shape.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a spring-type clip member interposed between a meter hood and an instrument panel, cut near one engaging claw.

FIG. 2 is a plan view of a spring type clip member.

FIG. 3 is an exploded perspective view before a spring-type clip member is interposed between a meter hood and an instrument panel.

FIG. 4 is a perspective view of a meter hood and an instrument panel as viewed from the vehicle compartment side.

FIG. 5 is a view corresponding to FIG. 1 according to the second embodiment.

FIG. 6 is a view corresponding to FIG. 2 according to the second embodiment.

FIG. 7 is a perspective view of a spring type clip member according to a second embodiment.

[Explanation of symbols]

 1 Spring Type Clip Material 7 Hole 7a Upper Side 7b Lower Side 7c Left Side 7d Right Side 11 Protrusion 13 Enlarged Part 23 Insertion Port 25 Frame Body 25a Upper End 25b Lower End 25c Left End 25d Right End 27 Extension Part 29 Engagement Claw 31 Engagement Piece 33, 43 Holding part 41 1st holding part 42 2nd holding part I Instrument panel (1st member) Ia Back surface Ib Front surface M Meter hood (2nd member)

Claims (2)

[Scope of utility model registration request] 1. A first member having a mouth-shaped hole, and the first member.
A spring type clip member for elastically engaging a second member having a protrusion provided at its tip with an enlarged portion to be inserted into a hole portion of the member, and allowing the enlarged portion of the protrusion to be inserted. The frame body portion provided with the insertion opening and the frame body portion corresponding to opposite sides of the periphery of the hole portion of the first member are provided so as to be insertable into the hole portion side of the first member. The extended portion, the engaging claw that engages with the periphery of the hole on the back surface side of the first member, and the periphery of the hole on the front surface side of the first member provided on the frame body portion. The engaging piece to be engaged and the protrusion extending inward from the tip of the extending portion so as to face each other and bent to extend toward the insertion opening side and inserted through the insertion opening. A spring-type clip member having a holding portion for holding the enlarged portion between the surfaces facing each other. 2. A first member having a mouth-shaped hole, and the first member.
A spring-type clip member for elastically engaging a second member having a protrusion provided at its tip with an enlarged portion to be inserted into a hole of the member, and allowing the enlarged portion of the protrusion to be inserted. The frame body portion provided with the insertion opening and the hole of the first member provided at both ends of the frame body portion corresponding to two sides of the periphery of the hole portion of the first member facing each other. An extending portion that is insertably extended to the first member, engaging claws that engage with the periphery of the hole on the back surface side of the first member, and the first member that is provided at both ends of the frame body portion. The engaging piece that engages with the periphery of the hole on the front surface side of the protrusion and the enlarged portion of the protrusion that extends inward from the tip of the extending portion so as to face each other and is inserted through the insertion opening. Insertion corresponding to the first holding part that holds between the opposing surfaces so as to prevent further insertion, and the extension part. Of the protrusions extending inward from the surroundings opposed to each other and prevented from being further inserted by the first gripping portion so as not to be separated from the insertion opening side. A spring-type clip member having two holding parts.