JP2571374Y2 - clip - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin clip for fixing an object to be mounted to a body.

[0002]

2. Description of the Related Art For example, car door trims, malls,
When a mounting object such as a retainer is fixed to a body panel, a clip made of a synthetic resin has been used. The general configuration is a head for mounting on the door trim side,
And legs for engaging with the body panel. Since the legs are inserted into and engaged with the mounting holes formed in the body panel, the legs need to be able to bend and deform in the direction of reducing the overall diameter. FIG. 6 or FIG.
There was something like that shown.

In the case of FIG. 6, the entire leg portion 20 is formed in a spindle shape, and has a pair of bending pieces 22 as shown in FIG. I have. Therefore, the two bending pieces 22 are deformed in the direction to close the mouth of the slit 21 and can pass through the mounting hole 23, and after passing through, the locking projection 24 formed on the outer peripheral surface near the opening edge of the slit 21 becomes the mounting hole 23. And the whole is prevented from coming off.

In the case of FIG. 8, the distal end of the leg 20 is a solid body, and this portion and the lower surface of the head 25 are connected by a plurality of flexibly deformable connecting pieces 26 to form the leg 2.
0 is formed in the shape of a birdcage. Therefore, the leg portion 20 can be extended and deformed in the height direction by the elastic deformation of each connecting piece 26, thereby passing through the mounting hole 23, and after passing, each connecting piece 26 returns and these bent portions become the mounting holes. The stopper 23 is engaged to prevent slippage.

[0005]

However, the above-mentioned two prior arts have the following problems to be solved. First, in the case of the clip shown in FIG.
Is a free end, the amount of bending of the bending piece 22 is relatively large. Therefore, it is effective for absorbing misalignment and variation in the diameter of the mounting hole 23 at the time of insertion. External force acts on one of the bending pieces 2
2 is pressed against the edge of the mounting hole 23, the bent piece 22 on the pressed side is elastically deformed, and the bent piece 2 on the opposite side is deformed.
2 is detached from the mounting hole 23 (see FIG. 7). That is, in the case of FIG.
Are set at only two positions, so that when an external force on the door trim D acts on one of the bending pieces 22, the leg 20 is moved to one side of the mounting hole 23. Then, rattling occurs in the door trim D, and in the worst case, there is a concern that the clip may come off.

In order to solve this problem, the opening direction of the slit 21 in the leg portion 20 must be set in consideration of the direction of action of an external force expected on the door trim D, which is a problem in assembling the clip. Or it is a design constraint.

In the case of the type shown in FIG. 8, if there is a deviation of the axis from the mounting hole 23 when the clip is inserted, the leg 2
There is a problem that 0 is crushed (buckled) in the axial direction and cannot be inserted. That is, unlike the type shown in FIG. 6, the type shown in FIG. 8 has both ends of each connecting piece 26 as fixed ends, and thus it is difficult to secure a sufficient amount of bending.

The present invention has been devised in view of such circumstances, and its purpose is to smoothly insert into the mounting hole and to maintain a good fixing state to the mounting object. The aim is to provide a clip that can.

[0009]

In order to achieve the above-mentioned object, the present invention has a configuration in which a resin-made head comprising a head to which an object to be mounted can be mounted and a leg inserted into a mounting hole on the body side. In the clip, the leg portion has a column suspended from the center of the lower surface of the head, and from this column, at least three or more skeleton pieces having a projection width capable of being inserted into the mounting hole with almost no gap are provided. In the direction and along the height direction of the column, an elastic engaging piece that is allowed to flex inward at the tip of the skeleton piece,
The outer peripheral surface of the elastic engaging piece is formed so as to extend along the circumferential direction of a circle centered on the support column and having the skeleton piece as a radius, and is engaged with the edge of the mounting hole near the free end. The elastic engaging piece is provided with a connecting portion with the skeleton piece along the height direction of the skeleton piece, and the lower edge of the portion extending in the circumferential direction is provided. Are characterized by being free edges over the entire length.

[0010]

[Function] In a state where the object to be mounted is attached to the head,
When the leg is inserted into the mounting hole of the body, each elastic engagement piece is bent inward and deformed to enable insertion while reducing the overall diameter. The engagement prevents the body from slipping off.

When inserting, even if there is a slight misalignment with the mounting hole, buckling is regulated by each skeleton piece. In addition, each elastic engagement piece is made to extend along the circumferential direction from the tip of each skeleton piece, and since the lower edge thereof is a free edge over the entire length, a large size is applied to each elastic engagement piece. The bending length can be secured. Therefore, even if there is a variation in the diameter of the mounting hole, it becomes possible to insert the hole in a regular state while absorbing the variation. Further, even if an external force acts on the object to be mounted after the insertion, the displacement is surely restricted at least in the direction in which the respective skeleton pieces project. Even if the elastic engagement piece on this line of action is bent by an external force from other directions, at least the engagement state of the other two locking projections is maintained as it is, so that the clip may come off. Things can be avoided.

[0012]

[Effects of the Invention] The effects of the present invention are as follows. Since the elastic engaging pieces extend in the circumferential direction from the distal end of each skeleton piece, and the lower edge of the extending portion is a free edge over the entire length, each elastic engaging piece is entirely formed. It is easy to bend and a large bent length can be secured. Therefore, even if there is a variation in the diameter of the mounting hole when the clip is inserted, the bending of each elastic engagement piece is reliably absorbed by the elastic engagement piece, so that the operation of inserting the clip can be performed smoothly and easily.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; 1 to 3 show a first embodiment of the present invention, in which a clip C1 according to the first embodiment is shown.
Is composed of a head 1 for mounting a door trim D of an automobile and a leg 3 for insertion into a mounting hole 2 of a body B.

The head 1 has a shaft piece 1a at the center, and three-stage pressing pieces 4a to 4c are arranged on the shaft piece 1a at appropriate intervals in the height direction. These holding pieces 4a to 4c are formed in a disk shape whose diameter increases as they go down, and at least the middle and lower holding pieces 4a and 4b are given good flexibility. The upper holding piece 4a can be inserted into the clip mounting part 5 of the door trim D, and the clip mounting part 5 is sandwiched between the upper holding piece 4a and the middle pressing piece 4b. Further, the lower holding piece 4c is formed to have a larger diameter than the mounting hole 2 of the body B, and closely adheres to the surface around the mounting hole 2 to maintain the sealing property.

The leg 3 is coaxially suspended from the lower surface of the lower holding piece 4a, and a column 6 is disposed at the center thereof.
Then, as shown in FIG.
The skeleton pieces 7 extend in the radial direction at intervals of 90 °, and each is formed over almost the entire height of the column 6. Further, the overhang length of each skeleton piece 7 is set to be substantially equal to the radius of the mounting hole 2 from the central portion to the upper side, that is, when the leg portion 3 is inserted into the mounting hole 2, Although the length is set so that the tip is substantially free from a gap at the edge of the mounting hole 2, the projecting length is reduced from the tip side in order to smoothly insert into the mounting hole 2. It is tapered.

An elastic engaging piece 8 is formed at the tip of each skeleton piece 7 so as to extend in a direction along a circumference centered on the column 6, that is, along a hole edge of the mounting hole 2. Thereby, as shown in FIG. 1 or FIG. 3, the leg 3 as a whole has a substantially swastika shape. The height range in which the elastic engagement pieces 8 are provided is from the height position connected to the lower surface of the lower pressing piece 4c to a position slightly lower from the center of the skeleton piece 7; The angle range in which each elastic engagement piece 8 is provided is a range in which a slit 9 having a predetermined width is opened along the height direction between the adjacent skeleton pieces 7. By setting the distal end side as a free end, each elastic engaging piece 8 can be deformed inwardly, and as a result, the entire leg 3 is reduced in diameter and can be inserted into the mounting hole 2.

Furthermore, the slit 9 in the elastic engagement piece 8
A locking projection 10 is formed in the upper part of the vicinity, and can be elastically engaged with the hole edge of the mounting hole 2.

Next, the operation and effect of the first embodiment configured as described above will be specifically described. First, door trim D
The upper holding piece 4a is inserted to the side, and the clip mounting portion 5 of the door trim D is sandwiched and held between the middle holding piece 4b. In this state, the leg 3 is fitted into the mounting hole 2 and pushed in as it is. Then, each of the elastic engaging pieces 8 is bent inward and deformed to reduce the diameter of the entire leg 3, so that the leg 3 is gradually inserted into the mounting hole 2, and the elastic engaging piece 8 is inserted into the hole of the mounting hole 2. While being engaged with the edge, the lower pressing piece 4c is closely attached to the periphery of the mounting hole 2 of the body B to perform sealing. Thus,
The clip C1 is prevented from coming off, and the door trim D is fixed to the body B.

In the present embodiment, the rigidity of the entire leg 3 is enhanced by the skeleton pieces 7, so that even if there is a misalignment with the clip C1 at the time of insertion into the mounting hole 2, buckling occurs as in the prior art. This allows the plug-in to be carried out while maintaining the normal upright posture without causing the occurrence of a wobble. In addition, each elastic engagement piece 8
Has a free end and has sufficient flexibility, so that the mounting hole 2
It is also possible to obtain a good engagement state by absorbing the variation in the hole diameter.

On the other hand, even if an external force in the direction of displacement acts on the door trim D, the backbone pieces 7 resist this, so that rattling is reduced. Also, depending on the direction in which the external force acts (for example, when acting in the direction of the arrow P in FIG. 3),
As shown in FIG. 3, the leg 3 is bent by being pressed by the elastic engaging piece 8 located on the line of action of the external force, and conversely, the elastic engaging piece 8 located on the opposite side is disengaged. However, even in such a situation, since the other three elastic engagement pieces 8 are kept in the engaged state, the leg 3 does not come off.
Therefore, unlike the related art, it is not necessary to set the arrangement and the like of the elastic engagement pieces 8 in consideration of the action direction of the external force expected to the door trim D, so that the degree of freedom in design or assembly is increased.

Further, in this embodiment, the elastic engaging piece 8 is
Are formed along the circumference of the mounting hole 2, so that the locking projection 10 is also formed along the edge of the mounting hole 2.
0 indicates a line contact (line contact) with the hole edge over the set range. In other words, if the player hits a point, the leg 3 may be inserted again (for example,
When the door trim D is replaced), the contact portion is greatly damaged, and depending on the type of the leg 3, it may be broken. But,
In this example, as described above, since the contact area with the hole edge is large and the engagement force is dispersed, the degree of damage is small even if the leg portion 3 is repeatedly inserted and removed. Therefore, since it can be used again, an economic effect can be expected.

FIGS. 4 and 5 show a second embodiment of the present invention. The clip C2 of the second embodiment is the same as that of the first embodiment with respect to the head 1, but is similar to that of the first embodiment. The shape has been changed as follows. Specifically, each skeleton piece 7
Are formed in the same arrangement and shape as in the first embodiment, but the elastic engaging pieces 8 are substantially formed around the circumference of the mounting hole 2 in both directions from the tip of one set (the pair facing left and right in FIG. 5). It is extended along. The height and the angular range where the respective elastic engagement pieces 8 are formed are the same as those in the first embodiment, and the same flexibility is exhibited. Further, the locking projection 1 formed on the distal end side of each elastic engagement piece 8.
As in the first embodiment, the point 0 allows the hole to elastically engage the mounting hole 2.

Also in the second embodiment configured as described above, the same operation and effects as those of the first embodiment, such as prevention of buckling of the leg 3 at the time of insertion and restriction of detachment by external force, can be exhibited. .

The object to be mounted is not limited to the door trim D, and the number of the skeleton pieces 7 is not limited as long as the number of the skeleton pieces 7 can be effectively prevented from coming off. More than a book is needed.

[Brief description of the drawings]

FIG. 1 is a bottom view of a clip according to a first embodiment.

FIG. 2 is a partially cutaway view showing an insertion operation into a body.

FIG. 3 is a cross-sectional view showing a case where a clip is displaced;

FIG. 4 is a partially cutaway view showing the insertion operation using the clip of the second embodiment.

FIG. 5 is a bottom view of the clip.

FIG. 6 is a partially cutaway view showing a mounting state using a conventional clip.

FIG. 7 is a sectional view showing a problem of the conventional clip.

FIG. 8 is a sectional view showing another conventional clip.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Head part 2 ... Mounting hole 3 ... Leg part 6 ... Strut 7 ... Frame piece 8 ... Elastic engagement piece 10 ... Locking protruding edge D ... Door trim (object to be mounted)

────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Susumu Aso 1 Hirike, Haruki, Togo-cho, Aichi-gun, Aichi Prefecture Inside Togo Mfg. Co., Ltd. Flat 4-3108 (JP, U) Fully open Showa 47-6 (JP, U) Fully open Showa 54-61960 (JP, U) Fully open Showa 51-110226 (JP, U) Fully open Showa 63-154808 (JP) , U) (58) Field surveyed (Int. Cl. ⁶ , DB name) F16B 19/00

Claims (1)

(57) [Scope of request for utility model registration] 1. A resin clip comprising a head to which an object to be mounted can be attached and a leg inserted into a mounting hole on a body side, wherein the leg is formed so as to hang down from a center of a lower surface of the head. At least three or more skeleton pieces are formed radially and along the height direction of the support column from the support column and have a protrusion width capable of being inserted into the mounting hole with almost no gap. At the tip of the piece, an elastic engagement piece to which inward bending deformation is allowed is formed extending along the circumferential direction of a circle centered on the column and having a skeleton piece as a radius,
In addition, on the outer peripheral surface at a position near the free end of the elastic engaging piece, a locking projection that can be engaged with the hole edge of the mounting hole is formed so as to protrude. A connection portion with the skeleton piece is provided along the edge, and a lower edge of the portion extending in the circumferential direction is a free end edge over the entire length.