JP2012202450A - Clip receiving structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clip receiving structure with which a two-piece clip can be assembled with a mounting member while saving time and efforts, and the clip can also be hardly disassembled after the assembly.SOLUTION: In a two-piece clip C, a bush 110 comprises a tubular portion 111 and a flange 112 formed in one end of the tubular portion 111, and a diameter of the tubular portion 111 is expanded by pushing a shank 102 of a pin 100 into the tubular portion 111 of the bush 110, thereby providing a mounting state. A clip receiving structure for assembling the two-piece clip C comprises: a mounting hole 21 into which the tubular portion 111 is inserted; and a pair of pressing parts 22 and 23 which are disposed while facing each other at an outside position of the mounting hole 21, and suppress the inserted tubular portion 111 from being dropped in an anti-inserting direction. Each of the pressing parts 22 and 23 includes a base portion 24 which is erected at the outside position, and an elastic piece 25 which is folded from the base portion 24 to a side of the mounting hole 21 and presses the flange 112 locked into the mounting hole 21.

Description

  The present invention relates to a clip receiving structure when a two-piece clip having a pin and a bush is assembled to an attachment member.

When attaching an attachment member such as an under cover or a panel material to a member to be attached such as an automobile body, a clip C having the form shown in FIG. 3 is often used. The clip C is a two-piece clip including a pin 100 and a bush 110. The pin 100 includes a header 101 and a shaft portion 102. The bush 110 includes a tube portion 111 into which the shaft portion 102 of the pin 100 is inserted, and a tube. And a flange 112 formed at one end of the portion 111 (see, for example, Patent Document 1). As shown in FIG. 3, the clip C has the shaft portion 102 fitted into the cylindrical portion 111 with the header 101 protruding upward from the flange 112 of the bush 110 before use.
On the other hand, the attachment member 120 has, as a clip receiving structure, an attachment hole 121 into which the cylindrical portion 111 of the clip C is inserted, and a pair of locking pieces that are erected on the periphery of the attachment hole 121 and hold the inserted clip C. And 122 and 123 are formed.

As shown in FIGS. 4 (a) and 4 (b), the clip C of the illustrated example is assembled to the attachment member 120 in the assembling process, and thereafter, in the attaching process, as shown in FIG. 4 (c). It is attached to the attachment member 130. As a result, the attachment member 120 is attached to the attached member 130 via the clip C.
Specifically, as shown in FIG. 4 (a), the operator pushes one locking piece 123 formed on the mounting member 120 outward with a finger and attaches the cylindrical portion 111 of the clip C. Insert into hole 121. Thereafter, the locking piece 123 opened outward is pushed back to the original position with a finger, and as shown in FIG. 4 (b), the locking projections 122a, 123a of the locking pieces 122, 123 cause the flange 112. Is pressed from above, and the clip C is assembled to the mounting member 120 (assembly process).

  Next, as shown in FIG. 4C, the attached member 130 is positioned below the attachment member 120 to which the clip C is assembled, and the attachment hole 121 of the attachment member 120 and the attachment hole 131 of the attachment member 130 are formed. Align and push the protruding header 101 to push the shaft portion 102 into the tube portion 111. By this operation, the plurality of leg pieces 111a constituting the cylindrical portion 111 are opened outward, the cylindrical portion 111 is expanded in diameter, and is fixed in that state. As a result, the clip C cannot be removed from the attachment hole 121 of the attachment member 120 and the attachment hole 131 of the attachment member 130, and the attachment of the attachment member 120 to the attachment member 130 is completed (attachment process).

JP 2010-196890 A

However, in the assembling process, as shown in FIG. 4A, when the operator pushes one locking piece 123 outward with a finger, the locking piece 123 is pushed back thereafter, and FIG. Even if it is in the state of b), the locking piece 123 is likely to open again due to residual stress. For this reason, the clip C assembled to the attachment member 120 may come off the attachment hole 121 of the attachment member 120 and fall off during the conveyance from the assembly process to the attachment process.
In particular, when the mounting member 120 is made of a thermoplastic resin, the operator removes one of the locking pieces 123 immediately after molding and the thermoplastic resin is still heated and has plasticity. Push it open. In such a case, a larger residual stress acts on the locking piece 123 pushed back to the original state, so that the locking piece 123 can be easily reopened outward, and the clip C is detached (dropped off). It was easy to happen.

  Moreover, in such an assembly process, the operator pushes and opens one of the locking pieces 123, the operation of inserting the cylindrical portion 111 of the clip C into the mounting hole 121, and the locking piece 123 to the original state A total of three actions, including a return operation, were required, and it took time and effort.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a clip receiving structure in which the clip can be assembled to the mounting member with little effort and time, and the clip is not easily detached after the assembly.

  The clip receiving structure of the present invention is mounted by expanding the diameter of the cylindrical portion by pushing the shaft portion of the pin into the cylindrical portion of the bush having a cylindrical portion and a flange formed at one end of the cylindrical portion. A clip receiving structure for assembling a two-piece clip to be in a state, wherein the tube portion is inserted into a mounting hole, and is opposed to an outer position of the mounting hole, and is inserted in a direction opposite to the insertion direction of the inserted cylindrical portion. A pair of pressing portions that suppress the detachment of the base, and the pressing portion includes a base that is erected at the outer position, and a flange that is bent from the base toward the mounting hole and is locked to the mounting hole. It consists of the elastic piece to hold down.

  According to the clip receiving structure of the present invention, the clip can be assembled to the mounting member with little effort and time, and the clip is not easily detached after the assembly.

It is a perspective view which shows the attachment member provided with the clip receiving structure which is an example of this invention, and the clip assembled | attached to this. (A), (b) The fragmentary sectional view which shows the assembly | attachment process which assembles the clip of FIG. 1 to the attachment member of FIG. 1, (c) The part which shows the attachment process which attaches an attachment member to a to-be-attached member by the clip of FIG. It is sectional drawing. It is a perspective view which shows the attachment member provided with the conventional clip receiving structure, and the clip assembled | attached to this. (A), (b) The fragmentary sectional view which shows the assembly | attachment process of assembling the clip of FIG. 3 to the attachment member of FIG. 3, (c) The part which shows the attachment process of attaching an attachment member to a to-be-attached member by the clip of FIG. It is sectional drawing.

Hereinafter, the present invention will be described in detail.
FIG. 1 is a perspective view showing a mounting member 20 having a clip receiving structure as an example of the present invention and a clip C assembled to the mounting member 20.
The clip C in FIG. 1 is used when attaching an attachment member 20 such as an undercover or a panel material to an attachment member such as a car body of an automobile. First, the clip C is attached to the attachment member 20 in an assembly process. After that, it is attached to a member to be attached in an attachment process. As a result, the attachment member 20 is attached to the attached member via the clip C.

The clip C in the illustrated example is a two-piece clip including a resin pin 100 and a resin bush 110, and the pin 100 includes a disc-shaped header 101 and a shaft portion 102 suspended from the center of the header 101. It has. The bush 110 has a cylindrical portion 111 into which the shaft portion 102 of the pin 100 is fitted, and a flange 112 formed at one end of the cylindrical portion 111.
As shown in FIG. 1, the clip C is fitted into the cylinder portion 111 of the bush 110 so that the shaft portion 102 of the pin 100 cannot be removed with the header 101 protruding upward in the drawing from the flange 112 before use. It is. The cylindrical portion 111 includes four leg pieces 111a extending in the longitudinal direction. As will be described later, in the mounting process, the header 101 protruding from the flange 112 is pushed downward, and the shaft portion 102 of the pin 100 is bushed. By completely pushing into the cylindrical portion 111 of 110, the four leg pieces 111a are opened outward and the cylindrical portion 111 is fixed in an expanded state, and is in an attached state. In FIG. 1, three leg pieces 111a out of four are shown.

The mounting member 20 in the illustrated example is a plate-like object formed by resin injection molding, and a clip receiving structure for assembling the clip C is formed.
The clip receiving structure of this example has an attachment hole 21 formed of a substantially long hole into which the cylindrical portion 111 of the clip C is inserted, and an outer position in the longitudinal direction of the attachment hole 21 (in this example, an edge portion in the longitudinal direction of the attachment hole). ) And a pair of pressing portions 22 and 23 that suppress the slipping of the inserted cylindrical portion 111 in the anti-insertion direction (upward direction in the figure).
Each pressing part 22, 23 is composed of a base 24 erected from the edge of the mounting hole 21 and an elastic piece 25 bent from the base 24 toward the mounting hole 21, and the base 24 and the elastic piece 25 Is formed to form an acute angle α. Then, in the assembly process (FIGS. 2A and 2B) described below, when the cylindrical portion 111 of the clip C is inserted into the mounting hole 21 of the mounting member 20, the elastic piece 25 is attached The flange 112 latched in the hole 21 is pressed from above to prevent the clip C from coming off. In addition, the base portion 24 of this example includes a reinforcing portion 24 a that reinforces the base portion 24.

In the assembling process for assembling the clip C to such a clip receiving structure, as shown in FIGS. 2 (a) and 2 (b), the operator inserts the upper surface of the mounting member 20 into the mounting hole 21 of the mounting member 20. The cylindrical portion 111 of the clip C is inserted from the side where the holding portions 22 and 23 are formed), and a downward force is applied to the clip C to completely insert the cylindrical portion 111 of the clip C into the mounting hole 21.
In the insertion operation of the clip C, each elastic piece 25 is first pushed in the direction (outward) approaching each base portion 24 by the peripheral end surface of the flange 112 as shown in FIG. It is in a state of being pushed outward while generating repulsive force. Next, the insertion operation of the clip C into the mounting hole 21 is further advanced against this elastic repulsive force, and as shown in FIG. 2B, the cylindrical portion 111 of the clip C is completely inserted and the flange 112 is attached. When the state of being locked in the hole 21 is reached, the flange 112 is positioned below the tip of the elastic piece 25, and the elastic piece 25 can no longer be pushed by its peripheral end surface. Thus, the elastic piece 25 from which the pressing force from the flange 112 has been released returns to its original state by its elastic repulsive force. As a result, the tip of the elastic piece 25 is positioned on the upper surface of the flange 112 and the clip C is inserted. It will be in a state of holding in the direction. In this way, the assembly process of the clip C is completed.

In such an assembling step, the elastic piece 25 is pushed outward by the peripheral end surface of the flange 112 as the clip C is inserted, so that the clip C is easily inserted. In addition, after the clip C is inserted, the elastic piece 25 naturally returns to its original state due to the elastic repulsive force and is positioned so as to hold down the clip C. Therefore, the operator can assemble the clip C by one action of pushing the clip C into the attachment hole 21, and can perform the assembling process with less effort and time.
Further, in the assembled state after the assembly process, even if a force in the anti-insertion direction acts on the clip C and the flange 112 operates to push the elastic piece 25 upward, the elastic piece 25 and the base part Until the angle α with respect to 24 reaches at least 90 °, the elastic piece 25 acts to hold down the flange 112 in the insertion direction. Therefore, it is possible to effectively suppress the clip C from being detached in the assembled state.

  The elastic piece 25 is required to be easily pushed and opened by the peripheral end surface of the flange 112 in the assembly process of inserting the clip C into the mounting hole 21 so that the clip C can be easily inserted. On the contrary, after the assembly process is completed, it is necessary that the flange can be stably pressed without moving (rotating) as much as possible and the clip C can be prevented from coming off. In order to control the ease of insertion and removal of the clip C, for example, the thickness of the boundary portion (corresponding to the rotation center of the elastic piece) between the elastic piece 25 and the base 24 may be adjusted.

  After such an assembly process, as shown in FIG. 2 (c), the attached member 130 is disposed on the lower surface (the surface where the pressing portion is not formed) of the attachment member 20 to which the clip C is assembled. The mounting hole 21 of the mounting member 20 and the mounting hole 131 of the mounted member 130 are aligned. Then, the protruding header 101 is pushed downward so that the header 101 and the flange 112 are flush with each other, and the shaft portion 102 is pushed into the cylindrical portion 111 of the bush 110. As a result, the four leg pieces 111a constituting the cylindrical portion 111 are opened to the outside, the diameter of the cylindrical portion 111 is expanded, and is fixed in that state. As a result, the clip C cannot be removed from the mounting hole 21 of the mounting member 20 and the mounting hole 131 of the mounted member 130, and the mounting of the mounting member 20 to the mounted member 130 is completed.

The attachment member 20 may be an under cover or a panel material, and the attachment member 130 may be a car body of an automobile, but can be attached by a two-piece type clip C as illustrated. If there is, there is no restriction | limiting in particular in the attachment member 20 and the to-be-attached member 130. FIG.
Moreover, there is no restriction | limiting in particular in the material of the pin 100 of the clip C, the bush 110, and the attachment member 20, Various resin can be used. For example, POM and polyamide are used, and in addition, for example, ABS, polypropylene, polyethylene, polystyrene, and the like are used. Moreover, there is no restriction | limiting in particular also in the material of the to-be-attached member 130. FIG.

In the above example, the mounting hole 21 formed in the mounting member 20 is a substantially elongated hole. However, the cylindrical portion 111 of the clip C can be inserted, the flange 112 can be locked, and the cylindrical portion 111. There is no particular limitation as long as it has a shape in which the clip C is locked and cannot be removed after the diameter is increased. In addition, the position where the base portion 24 of the pressing portions 22 and 23 is erected is a position where the elastic piece 25 provided on the distal end side of the base portion 24 can press the flange 112, from the edge portion of the mounting hole 21. The position may be slightly away from the outside.
Further, as the clip C, the cylindrical portion 111 is expanded by pushing the shaft portion 102 of the pin 100 into the cylindrical portion 111 of the bush 110 including the cylindrical portion 111 and a flange 112 formed at one end of the cylindrical portion 111. There is no particular limitation on the specific configuration as long as it is in a diameter and attached.

C Clip 20 Mounting member 21 Mounting member mounting holes 22, 23 Holding portion 24 Base portion 25 Elastic piece 100 Pin 101 Header 102 Shaft portion 110 Bush portion 111 Tube portion 112 Flange 130 Mounted member 131 Mounted member mounting hole

Claims (1)

Assembling a two-piece clip in which the cylindrical portion is expanded in diameter by pushing the shaft portion of the pin into the cylindrical portion of the bush including the cylindrical portion and a flange formed at one end of the cylindrical portion. Clip receiving structure for
A mounting hole into which the cylindrical portion is inserted, and a pair of pressing portions that are disposed opposite to the outer position of the mounting hole and prevent the inserted cylindrical portion from coming off in the anti-insertion direction,
The clip holder includes: a base portion erected at the outer position; and an elastic piece that is bent from the base portion to the mounting hole side and presses a flange locked to the mounting hole. Construction.

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