JPH07259823A - clip - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a clip having a structure that can suppress rotation and can be attached with a small insertion force and can improve workability. [Structure] A protrusion 14 inserted into a corner portion of each of the mounting holes 4 and 3 is provided as a rotation stopper at a corner portion between adjacent elastic locking pieces 13 and 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clip for mounting a trim board or the like on a vehicle body panel of an automobile, for example.

[0002]

2. Description of the Related Art Conventionally, a clip of this type is made of a plastic material, and has a flange-shaped portion having a boss hole vertically penetrating in the center and an engaging portion on the outer periphery, and the lower surface of the flange-shaped portion. A plurality of elastic locking pieces that are respectively projected from the cylindrical elastic member and are arranged in a cylindrical shape, and the elastic member is provided in a mounting hole formed in a circular shape substantially corresponding to the cylindrical shape on the panel material side. A stop member is pushed in and a female member made of a flexible material for holding the component by engaging the locking portion with the mounting hole edge on the back surface side of the panel material, and being fitted into the boss of the female member. A male member for holding the elastic locking piece in the engaging direction,
Further, when the male member is rotated with respect to the female member, the male member is formed as a clip that can be retracted from the position for holding the elastic locking member in the engaging direction. The structure is, for example, actual Kaihei 1-16581
It is known from the publication No. 0 and the like.

[0003]

However, in the clip having the above structure, since the plurality of elastic locking pieces provided on the female member side are arranged in a cylindrical shape, the male member is rotated with respect to the female member. There is a problem that the female member also rotates when retracted from the engaging position holding position.

Therefore, in order to solve this problem, a method of increasing the elastic force of the elastic locking piece is also adopted, but this method requires a large force when inserting the female member into the mounting hole. And For this reason, there is a problem in that it is difficult to insert and the workability is poor because the operator's fingers and the like are tired.

It is also conceivable that the tubular shape formed by a plurality of elastic locking pieces is made substantially quadrangular, and the shape of the mounting hole is made quadrilateral corresponding thereto. In this case, the rotation of the female member is suppressed, but since the width of the elastic locking piece corresponding to each side becomes large, the insertion force does not become small, and a large insertion force is still required, resulting in poor workability. There was a problem called.

The present invention has been made in view of the above problems, and an object thereof is to suppress rotation and to enable attachment with a small insertion force to improve workability. To provide a structured clip. Furthermore, other purposes will be clarified one after another in the content described below.

[0007]

This object is a main part of the present invention, and is a tubular body having a collar-shaped portion and a locking surface on the outer periphery, and the flange-shaped portion is projected from the lower surface of the collar-shaped portion to form a substantially tubular body. A plurality of elastic locking pieces that are arranged in a shape, and the elastic locking pieces are pushed into a mounting hole that is formed in a shape substantially corresponding to the tubular shape on the panel material side, and the panel material is pressed. In a plastic clip that holds the component by engaging the locking surface with the mounting hole edge on the back side of the, the tubular shape and the mounting hole are formed into a substantially rectangular shape, and the adjacent elastic This is achieved by providing projections to be inserted into the corners of the mounting hole at each corner between the locking piece.

[0008]

According to the above construction, since the projections inserted into the corners of the mounting holes serve as rotation stoppers, the elastic locking pieces themselves do not have a rotation stopper function, but only an engaging function. Since the elastic locking pieces can be placed with a minimum width, the elastic locking pieces can be formed with a free width. As a result, the insertion force at the time of mounting, which is affected by the engaging force of the elastic locking piece, can be reduced and the rotation can be surely suppressed.

[0009]

Embodiments of the present invention will be described in detail below with reference to the drawings. 1 to 3 are schematic views of a clip according to an embodiment of the present invention in use, and FIGS.
Shows the clip before it is used.

First, referring to FIGS. 1 to 3, in this embodiment, the case where the trim board 2 is attached to the inner panel 1 on the vehicle body side of an automobile is used as an example. The inner panel 1 and the trim board 2 are preliminarily formed with mounting holes 3 and 4 for inserting the clips 10 in correspondence with each other.
The mounting holes 3 and 4 have substantially the same size,
Moreover, it is formed in a quadrangle.

Next, the clip 10 will be described with reference to FIGS. 1 to 9.
The detailed structure of will be described. First, the clip 10 is roughly composed of a female member 10A and a male member 10B.

More specifically, the female member 10A is made of plastic, has a boss hole 11 vertically penetrating through the center thereof, and is formed in a substantially disc shape. Four elastic locking pieces 13 and four protrusions 14 formed on the lower surface side of 12 are integrally formed.

On the upper surface side of the collar-shaped portion 12, the boss hole 1
A counterbore 15 is put around the periphery of the counterbore 1, and a sawtooth-shaped cam 16 is formed on the bottom surface of the counterbore 15 as a step portion inclined in one direction.

Each of the four elastic locking pieces 13 is formed in a flat plate shape, and surrounds the boss hole 11 so as to project downward at a substantially right angle from substantially equidistant positions around the boss hole 11. And each of them is arranged so as to correspond to one side of the mounting hole 3, and the four elastic locking pieces 13 are formed as a tubular body having a substantially square shape as a whole. Then, since the outer peripheral surface of each elastic locking piece 13 is brought into contact with the hole edge of the mounting hole 3 on the back surface side of the inner panel 1 to function as a locking portion,
The tip end side of each elastic locking piece 13 is larger than the inner surface of the mounting hole 3 and has a structure in which the tip end side is spread outward in a divergent state. Further, the tip of each elastic locking piece 13 is bent inward from the inner surface of the mounting hole 4 and the mounting hole 3 to facilitate insertion into the mounting hole 4 and the mounting hole 3, and the locking claw 17 is formed at the tip. It is in the state of being

The four projections 14 are made to project downward more than the sum of the thickness of the trim board 2 and the thickness of the inner panel 1 at the corners where the elastic locking pieces 13 intersect. The front end is chamfered to form a tapered surface 18 in order to facilitate insertion into the mounting hole 3. Each of the protrusions 14 is in a state of corresponding to each corner portion of the mounting hole 3.

The male member 10B is made of plastic and has a generally disk-shaped flange 21 having a driver insertion hole 20 in the center and a lower surface of the flange 21 which is substantially right angled downward. It is composed of a shaft portion 22 and the like protruding to the outside. Of these, the collar-shaped portion 21 is the collar-shaped portion 1 of the female member 10A.
2 is formed in a size that can be inserted into the counterbore 15 formed on the upper surface side of 2, and on the lower surface, projections 23 that can slidably contact the sawtooth cam 16 in the counterbore 15 are formed at positions displaced by 180 degrees. ing.

The shaft portion 22 is provided on the outer periphery of the lower end portion with the shaft portion 2.
When 2 is inserted into the boss hole 11 of the female member 10A, four recesses 25 for accommodating the locking claws 17 of the elastic locking pieces 13 of the female member 10A are provided in the circumferential direction at substantially equal intervals. And, along the upper edge of each recess 25, a locking ridge 26 slightly protruding from the outer periphery of the shaft portion 22 is provided. Also, the recess 25
Is divided by the four partition walls 28 of the locking ridge 26 into 90 degrees in the circumferential direction, and the inside edge of each recess 25 has a conical inclined surface 29 whose upper edge is continuous with the locking ridge 26 and which has an upward diameter. Is formed. Each partition wall 28 has a thickness that makes sliding contact with a slit (not shown) of the female member 10A. Further, when the shaft portion 22 is completely inserted into the boss hole 11 of the female member 10A, the female member 10A is provided on the outer periphery of the intermediate portion on the upper side of the locking ridge 26.
There are four recesses 31 in the circumferential direction in which the locking claws 17 of each elastic locking piece 13 are housed and engaged, and they are provided at equal intervals in correspondence with the recesses 25. In addition, the shaft portion 22 has a recess 25
A conical tip portion 30 is formed below the lower end portion having.

Further, the female member 10A and the male member 10B respectively formed in this way are preliminarily assembled and handled as shown in FIGS. In this assembly, first, the partition wall 28 of the shaft portion 22 of the male member 10B and the slit (not shown) formed in the boss hole 11 of the female member 10A are aligned, and the shaft portion 22 is inserted into the boss hole 11 from above. Push in. Then, when the conical tip portion 30 of the shaft portion 22 passes downward between the inward locking claws 17 of the elastic locking pieces 13, the elastic locking pieces 13 bend outward and warp, respectively. , After the passage, as shown in FIG.
Enters the concave portion 25 around the shaft portion 22, the elastic locking piece 13 is restored to the original state and is in the temporary assembly state.

Next, using the clip 11 thus formed in the temporarily assembled state, for example, the inner panel 1 of an automobile
A case where the trim board 2 is attached to will be described.
First, the mounting hole 3 and the mounting hole 4 are made to correspond to each other, and the inner panel 1
Place the trim board 2 on. Next, the female member 10A is prepared, and this female member 10A is attached. In this installation, the protrusion 14 is attached to each mounting hole 4 from the trim board 2 side.
The elastic locking piece 13 is pushed in corresponding to the corner portion of 3. At this time, when the protrusion 14 does not correspond to the corner portion of the mounting holes 4 and 3, the elastic locking piece 13 and the mounting holes 4 and 3 are displaced in the rotational direction, for example, as shown by a dashed line in FIG. In this case, the protrusion 14 hits the hole edge and cannot be inserted all the way. Therefore, in this case, the protrusion 14 is inserted in a state in which the protrusion 14 is rotated until it corresponds to the corner portions of the mounting holes 4 and 3 and the orientation is corrected, whereby the protrusion 14 is always inserted and positioned in the correct orientation. Further, at the time of insertion, the elastic locking piece 13 is elastically deformed inward so that the elastic locking piece 13 is released into the recess 25 and is inserted while flexing. Further, when the lower surface of the collar-shaped portion 12 is inserted until it comes into contact with the upper surface of the trim board 2, the outer peripheral surface of the elastic locking piece 13 is elastically engaged with the hole edge on the lower surface side of the inner panel 1 to be engaged, It is prevented from falling out. As a result, the trim board 2 is temporarily fixed to the inner panel 1. Further, in this state, since the protrusion 14 is inserted and arranged in the corner portion of the mounting holes 4 and 3, even if the protrusion 14 is rotated with respect to the inner panel 1, the rotation is suppressed by the protrusion 14. Therefore, in this female member 10A, regardless of the elastic locking piece 13, the rotation is suppressed by the engagement of the protrusion 14 and the mounting holes 4 and 3.

Next, the collar portion 21 is pushed to push the male member 10
Press B down. Thereby, the shaft portion 22 of the male member 10B
Moves down in the female member 10A, and at this time, the locking claw 17 is pushed outward by the inclination of the conical inclined surface 29 of the shaft portion 22, and the elastic locking piece 13 is expanded below the inner panel 1. Further, when passing over the locking ridge 26, as shown in FIG. 3, it is engaged with the concave portion 31 and cannot return, so that the elastic locking piece 13 is kept expanded. At the same time, the projection on the male member 10B side comes into contact with the flat lower surface 16a of the sawtooth cam 16 formed in the counterbore 15 of the female member 10A, and the female member 10A
The upper surfaces of the collar-shaped portion 12 of A and the collar-shaped portion 21 of the male member 10B are at the same position, and the partition wall 28 and the female member 10 are arranged.
A slit (not shown) formed in the boss hole 11 of A is disengaged, and the member 10B pushing against the female member 10A becomes rotatable.

On the other hand, from the inner panel 1 to the trim board 2
When removing, the blade edge of the driver is inserted into the driver insertion hole 20 so that the projection 23 formed on the lower surface of the collar-shaped portion 21 rides on the inclined surface of the sawtooth cam 16 in the counterbore 15 of the female member 10A. Turn the male member 10B.
As a result, the protrusion 23 on the head of the male member 10B is pushed upward by the slope of the saw-toothed cam 16 to move the male member 10B upward, and at the same time, the elastic locking piece is moved on the partition wall 28 of the locking ridge 26. The male member 10B rotates as the locking claw 17 of 13 moves, the locking claw 17 is engaged with the recess 25, and the temporary assembly state is restored again. Then, in this state, the male member 10
When B is pulled upward, the female member 10A also comes off together,
The trim board 2 can be removed from the inner panel 1.

Therefore, according to the clip structure of the above-described embodiment, the protrusions 14 inserted into the corner portions of the mounting holes 4 and 3 are prevented from rotating at the corner portions between the adjacent elastic locking pieces 13 and 13. Since the elastic locking piece 13 itself does not have the function of the rotation stopper but only the locking function, the elastic locking piece 13 has a minimum locking force. Therefore, the elastic locking piece 13 can be formed with a free width.

10 to 13 show a modified example of the clip according to the present invention. FIG. 10 is a side view thereof, and FIG.
1 is a plan view thereof, FIG. 12 is a bottom view thereof, and FIG. 13 is a side view thereof showing a state of use. Further, in FIGS. 10 to 13, the same reference numerals as those in FIGS. 1 to 9 denote the same as those in FIGS. 1 to 9. The difference between the structure of the clip in this modification and the structure of the embodiment shown in FIGS. 1 to 9 lies in the length of the protrusion 14. That is, in the case of the clip 10 of the above-described embodiment shown in FIGS. 1 to 9, the protrusion 14 of the female member 10A is attached to each elastic locking piece 13.
The length is much smaller than the length of the trim board 2 and is slightly longer than the size of the thickness of the trim board 2 and the thickness of the inner panel 1 in the use state. In the example, the elastic locking pieces 13 are formed to have substantially the same length.

In the structure of this modification, when the female member 10A is attached, the projection 14 is positioned at the corner portion of the attaching hole 4, 3 from the time when the female member 10A is inserted into the attaching hole 4, 3. , You can push it in this position. That is, at the time of starting the insertion of the female member 10A, the collar upper portion 12 and the trim boat 2 are largely separated from each other, and the protrusion 14 is positioned and inserted into the corner portion while the operator directly looks at the mounting hole 4 portion. Therefore, there is an advantage that the work is easy. Further, it can be used even when a plurality of panels are laminated and the others are round holes and a rectangular mounting hole is formed in the lowest panel.

[0025]

As described above, according to the clip of the present invention, since the projections inserted into the corners of the mounting holes serve as rotation stoppers, the elastic locking piece itself has a rotation stopper function. Instead, since it is sufficient to place it with only the fastening function, it can be formed with a minimum width and with a free width. As a result, the effect that the insertion force into the mounting hole is reduced to improve the workability and the rotation can be surely suppressed can be expected.

[Brief description of drawings]

FIG. 1 is a side view showing a clip according to an embodiment of the present invention partially broken away in a used state.

FIG. 2 is a bottom view of the same clip shown in use in FIG.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is an external perspective view showing a clip as an embodiment of the present invention in an unused state.

5 is a side view of the same clip shown in FIG. 4. FIG.

6 is a plan view of the same clip shown in FIG. 4. FIG.

FIG. 7 is a bottom view of the same clip shown in FIG.

8 is a cross-sectional view taken along the line BB of FIG.

9 is a sectional view taken along line CC of FIG.

FIG. 10 is a side view showing a modified example of the clip according to the present invention.

FIG. 11 is a plan view of a clip shown as a modified example of the same.

FIG. 12 is a bottom view of a clip shown as a modified example of the same.

FIG. 13 is a side view showing a clip shown as a modified example of the same in a used state.

[Explanation of symbols]

 1 Inner panel (panel material) 2 Trim board 3 Mounting hole 4 Mounting hole 10 Clip 10A Female member 10B Male member 11 Boss hole 13 Elastic locking piece 14 Protrusion

Claims (4)

[Claims] 1. A collar-shaped portion, and a plurality of elastic locking pieces, each of which has a locking surface on an outer periphery and is protruded from a lower surface of the collar-shaped portion and is arranged in a substantially tubular shape as a whole. Then, the elastic locking piece is pushed into the mounting hole formed on the panel material side in a shape substantially corresponding to the tubular shape, and the locking surface is attached to the mounting hole edge on the back surface side of the panel material. In a plastic clip for holding a component by forming the tubular shape and the shape of the mounting hole into a substantially rectangular shape, the mounting hole of the mounting hole is formed at each corner between the adjacent elastic locking pieces. A clip that is provided with a protrusion that is inserted into a corner portion. 2. The clip according to claim 1, wherein the rectangular cylindrical shape formed by the plurality of elastic locking pieces and the mounting hole are formed into a substantially square shape. 3. A collar-shaped portion having a boss hole vertically passing through the center and a locking surface on the outer periphery, each protruding from the lower surface of the collar-shaped portion and arranged in a generally cylindrical shape. A plurality of elastic locking pieces provided, and the elastic locking pieces are pushed into a mounting hole formed in a shape substantially corresponding to the cylindrical shape on the panel material side, and the elastic material is pressed on the back surface side of the panel material. A female member made of a flexible material that holds a component by engaging a locking surface with an edge of a mounting hole, and retains the elastic locking piece in the engaging direction by being fitted into the boss of the first female member. And a male member for retaining the elastic locking member, and when the male member is rotated with respect to the female member, the male member can be retracted from a position for holding the elastic locking member in the engaging direction. In a possible plastic clip, if the tubular shape and the mounting hole are formed into a substantially rectangular shape, Moni, at each corner portion between the elastic locking pieces adjacent, characterized in that a projection which is inserted into a corner portion of the mounting hole clip. 4. The clip according to claim 3, wherein the rectangular cylindrical shape formed by the plurality of elastic locking pieces and the mounting hole are formed into a substantially square shape.