JPH10292807A - Member fitting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the workability of fitting work. SOLUTION: A grommet 2 is previously fitted to a formed roof by means of an adhesive, and the leg part 18 thereof is inserted into the fitting hole of an inner panel, so that it is temporarily locked by means of stopping claws 27. The inserting stem 8 of a pin member 1 is inserted into the leg part 18 through the formed roof from the assist grip side. In this case, the locking claws 12 formed on the inserting stem 8 are guided along the slits 24 formed in the inserting stem 8, so that the insertion can be smoothly carried out. Thereafter, the pin member 1 is twisted by an angle of approximately 90 deg., so that the locking claws 12 are shifted from the slits 24 through the circumferential stepped parts to reach locking recessed parts. In this process, the locking state of the stopping claws 27 is strengthened, and also the drawing-out of the pin member 1 can be prevented by the surface contact locking between the stopping claws 27 and the locking claws 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a member mounting structure.

[0002]

2. Description of the Related Art Conventionally, a molded ceiling (roof head lining) is attached to a ceiling surface in an automobile interior, and a sun visor and an assist grip (a hanging tool for a passenger) are also attached to the ceiling surface together with the molded ceiling. ) Etc. are also attached. In these installations, the molded ceiling is first temporarily held on the inner panel on the ceiling surface. The temporary holding operation is performed by inserting a resin clip from the surface side of the molded ceiling to the inner panel side and pressing down the molded ceiling with the head of the resin clip. Thereafter, the assist grip and the like are attached. For this purpose, a mounting hole is opened in the inner panel, and a nut is previously mounted on the back side of the mounting hole (the surface on the side facing the outer panel) by welding. Therefore, if the screw is inserted into the assist grip and tightened against the nut, the molded ceiling is fixed together with the assist grip.

Further, since a large load is expected to be applied to the assist grip, screwing into the nut has been performed. However, in the case of a sun visor or the like which does not require a large engaging force, a cylindrical member is used instead of the nut. A resin cap is fitted and tightened with a tapping screw.

However, no matter which method is adopted, the workability is poor because of the structure in which the permanent fastening is performed by screwing. In particular, in the case of a molded ceiling or the like, since the work is directed upward, the work is more troublesome.

The present invention has been devised in view of the above-mentioned conventional problems, and an object of the present invention is to provide a structure capable of facilitating the work of mounting a member to be mounted. .

[0005]

According to the first aspect of the present invention, there is provided a vehicle having a leg which can be inserted into a mounting hole drilled on a body side, and an outer surface of the leg which is inserted into the mounting hole. A grommet formed with a retaining portion that can be temporarily elastically locked at the edge of the hole, and is formed to have a diameter larger than a mounting hole formed in the mounted member to be fixed to the body and can hold down the mounted member. And a pin member on the lower surface of the head of which an insertion shaft portion that can be inserted into the leg portion through the mounting hole is suspended, and furthermore, the end portion of the insertion shaft has a radial direction. On the other hand, a groove is formed along the axial direction on the leg of the grommet to allow the locking claw to enter when the insertion shaft of the pin member is inserted. And from this groove in the circumferential direction When the pin member is angularly displaced, a step portion is formed for expanding and deforming the leg portion to fully lock the retaining portion and locking with the locking claw to restrict the removal of the pin member. It is characterized by having.

According to a second aspect of the present invention, in the first aspect, the boundary between the step and the groove is such that the thickness of the leg is reduced and the locking claw shifts from the groove to the step. Can be guided.

Further, the invention of claim 3 is characterized in that, in the invention of claim 1 or 2, the grommet has a substrate which can be attached to the member to be mounted.

[0008] The invention of claim 4 is the invention of claim 1 or 2.
The grommet according to the above description, wherein the grommet is formed integrally with the mounted member.
Further, the invention according to claim 5 is characterized in that, in any one of claims 1 to 4, the mounted member is a molded ceiling of a vehicle.

[0009]

According to the first aspect of the present invention, when the leg of the grommet is inserted into the mounting hole of the body, the retaining portion is elastically temporarily locked to the edge of the mounting hole, and the grommet is connected to the body. Is loosely retained. Further, with the member to be mounted facing the body, the insertion shaft of the pin member is inserted into the leg of the grommet via the mounting hole. In this case, the locking claw of the pin member is advanced along the groove of the leg, and the pin member is twisted when the head of the pin member is inserted to a position where the member to be mounted is pressed down. Then, the locking claw shifts from the groove to the step, and is locked here.
Also, while the locking claw moves along the step, the legs expand and deform, so that the retaining portion is fully locked with the hole edge of the mounting hole, and the engaging force of the grommet is reduced. Be strengthened. Thus, as a result of the pin member being prevented from coming off with respect to the grommet, the mounted member is fixed to the body.

Therefore, according to the first aspect of the present invention, if the grommet is mounted on the body side, the mounting of the mounted member can be completed only by the twisting operation after inserting the pin member. It will be excellent.

According to the second aspect of the present invention, since the leg portion is cut off at the groove portion side of the step portion, the locking claw smoothly moves to the step portion side when the pin member is twisted. can do.

Further, according to the third aspect of the present invention, since the grommet is pre-attached to the mounted member such as a molded ceiling by the substrate, the mounted member is temporarily fixed to the body after being temporarily mounted. Therefore, the workability is superior to the case where the main fixing is directly performed.

According to the fourth aspect of the present invention, if the grommet is formed integrally with the member to be mounted, the number of parts to be handled is reduced, which is advantageous in terms of parts management. According to the fifth aspect of the present invention, it is possible to provide a structure suitable for mounting a molded ceiling of a vehicle.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. -First Embodiment- Figs. 1 to 7 show a first embodiment of the present invention.
FIG. 1 shows a pin member 1 and a grommet 2 used in this embodiment, and hereinafter a molded ceiling 3 and an assist grip 4 (these will be attached members of the present invention) are attached by these. The case will be described as an example.

First, the pin member 1 will be described. The pin member 1 is integrally formed of a synthetic resin material (for example, a material made of polyacetal is preferable, but may be made of metal). A disk-shaped head 5 is formed at an upper end of the pin member 1, and a mounting hole 6 of the assist grip 4 is formed.
It is formed with a larger diameter. In the center of the upper surface of the head 5, an insertion groove 7 for a Phillips screwdriver is formed.

As shown in FIG. 3, the area around the mounting hole 6 of the assist grip 4 is lower by one step, so that the head 5 does not protrude.

On the other hand, an insertion shaft 8 is formed coaxially on the lower surface of the head 5, and in this embodiment, the insertion shaft 8 has a predetermined length range from the head 5 side to the tip end side. Although the peripheral surface is formed so as to have a cross shape in a horizontal cross section, the connecting portion 9 is formed without being thinned at an intermediate position. The insertion shaft 8 can be loosely inserted into the mounting hole 6 and the insertion hole 10 of the molded ceiling 3, but is formed to have an outer diameter such that there is substantially no gap in the accommodation hole 23 of the grommet 2. I have. further,
The tip of the insertion shaft 8 is formed with a conical pointed end 11 to facilitate the insertion operation.

Further, a pair of locking claws 12 are formed so as to protrude radially outward between the pointed end portion 11 and the above-described thinned portion. Both locking claws 12 have an inclined surface 13 whose side edge is continuous with the inclined surface of the pointed end portion 11, and this inclined surface 13 is cut off in parallel with the axis of the insertion shaft 8, and after being continuous with the surface 14, it is retained It continues to the surface 15. The retaining surface 15 is substantially perpendicular to the axis of the insertion shaft 8 and formed in a triangular shape in a plan view. The pin member 1 is inserted into the leg 18 of the grommet 2 and
When the twisting operation of ゜ is applied, the grommet 2 is hooked on the step portion 16 of the grommet 2 in a surface contact state, and the deepest hooking margin is obtained when the grommet 2 is fitted to the locking recess 17. This point will be described again when the grommet 2 is described.

Next, the grommet 2 will be described.
The grommet 2 is also formed of a synthetic resin material (for example, nylon), like the pin member 1. A rectangular substrate 19 is formed on the upper surface of the grommet 2, and a sufficient length dimension is secured because the substrate is attached to the back surface of the molded ceiling 3 by an adhesive. A circular leg 18 is hung at the center of the lower surface of the substrate 19, and can be inserted into a mounting hole 21 formed in an inner panel 20 of the body with almost no gap. However, the outer peripheral edge of the tip of the leg 18 is chamfered 22 so that the insertion operation can be performed smoothly. Further, the inside of the leg 18 is the insertion shaft 8 of the pin member 1.
Is formed in the center of the substrate. When the substrate is attached to the molded ceiling 3, the insertion hole 10 and the storage hole are concentrically connected. It is.

The leg portion 18 has a slit 24 (corresponding to the groove portion of the present invention) cut along the height direction from the tip end to the substrate 19, and as a whole a bifurcated shape capable of bending and deforming in the leg opening direction. Is formed. The slit 24 also communicates with the entrance of the accommodation hole 23 opened on the substrate 19 to extend the entrance of the accommodation hole 23 to the left and right. The expanded portion is provided with both locking claws 12 of the pin member 1.
The two locking claws 12 can pass through the slit members 24 with almost no gap, and the locking claws 12 that have passed therethrough then enter the slits 24 so that the pin members 1 Is permitted and its operation is guided.

On the inner peripheral surface of the leg portion 18, a predetermined height range upward from the distal end thereof is removed along the circumferential direction to form a relief surface 25 which allows angular displacement of both locking claws 12. ing. As a result, a step 16 is formed between the relief surface 25 and the upper portion. When the assist grip 4 is located on the inner panel 20 together with the molded ceiling 3 as shown in FIG. 3 or FIG. When the pin member 1 is twisted, the cut-off surface 14 of the locking claw 12 comes into sliding contact with the relief surface 25 while being pressed, whereby the leg portion 18 is expanded and deformed. . Further, in this embodiment, in order to facilitate the twisting operation of the pin member 1, the point symmetrical position of the boundary between the step portion 16 and the slit 24 (in the relation that the head portion 5 of the pin member 1 is operated clockwise, (The position corresponding to this), the transition starting position of the two locking claws 12 is located at
6 are formed. That is, as shown in FIG. 5 and the like, the width of the step portion 16 is wide on the slit 24 side.
That is, on the contrary, in the portion adjacent to the slit 24 side, the leg 1
The inner peripheral wall of the inner wall 8 has the largest thickness, and the depth of the wall is gradually reduced along the circumferential direction. 12 can be shifted to the step 16 relatively smoothly.

The two slits 2 of the relief surface 25
4 (corresponding to the position where the pin member 1 is twisted by approximately 90 °) is radially recessed in accordance with the shape of the locking claws 12 to form a pair of locking recesses 17. The two locking recesses 17 are continuous with the step portion 16, and the width of the step portion 16, that is, the largest allowance with the retaining surface 15 is secured here.

Further, a retaining claw 27 (a retaining portion) is disposed on the outer peripheral surface of the leg 18 at a position orthogonal to the position where the slits 24 are provided. The both retaining claws 27 project obliquely outward from the lower opening edge of the window portion opening on the upper side of the leg portion 18. This double retaining claw 2
Numeral 7 is formed so as to be able to bend and deform inward, and can be elastically locked to a hole edge of the mounting hole 21 of the inner panel 20.

Next, the operation and effect of the first embodiment configured as described above will be specifically described. First, temporary fixing work for the inner panel 20 of the molded ceiling 3 is performed. For that purpose, the grommet 2 is attached to an appropriate place on the back side of the molded ceiling 3 (a place where the assist grip 4 and the like are attached).
That is, an adhesive is applied to the substrate 19, and the grommet 2 is bonded so that the accommodation hole 23 and the insertion hole 10 of the molded ceiling 3 are aligned. Then, the leg 18 is connected to the inner panel 2.
When fitted into the mounting hole 21 with zero, the retaining claws 27 pass through the mounting hole 21 while flexing inward, return to the position after passing through, and engage with the edge of the mounting hole 21. However, the molded ceiling 3 is temporarily fixed by the grommet 2,
Other temporary fixing means (resin clips similar to the conventional ones) are also provided, and these are used to temporarily perform the entire temporary fixing.

When the molded ceiling 3 is temporarily fixed as described above, the assist grip 4 is subsequently mounted. That is, the assist grip 4 is applied to the molded ceiling 3, the mounting hole 6 is aligned with the insertion hole 10 of the molded ceiling 3, and the insertion shaft 8 of the pin member 1 is inserted in that state. At this time, if the insertion is performed while aligning the both locking claws 12 with the opening of the accommodation hole 23 on the substrate 19 side, the locking claws 1
2 moves downward in the axial direction while being guided by both slits 24. When the pin member 1 is inserted to a position where the head 5 of the pin member 1 comes into contact with the surface of the assist grip 4 (the state shown in FIG. 3), as described above, the two locking claws 1
The second retaining surface 15 is in a state in which the height is substantially the same as the step portion 16.

Next, when a Phillips screwdriver is inserted into the insertion groove 7 of the pin shaft and twisted clockwise (operation counterclockwise in FIG. 5 and the like), the locking claws 12 are
To the step 16 side. At this time, since the introduction portion 26 is formed on the inner peripheral surface of the leg portion 18 so as to reduce interference with the tips of the locking claws 12, this shifting operation is relatively smooth. While the pin member 1 is being twisted, the legs 18 are pushed by the cut-off surfaces 14 of the locking claws 12 to expand and deform, respectively.
At the time of being twisted by 0 °, both the locking claws 12 reach the locking recesses 17, whereby the legs 18 slightly return to the recessed direction. However, compared to before the twisting operation was applied, the legs were expanded. In this state, the engagement between the retaining claw 27 and the mounting hole 21 is further strengthened. Therefore, the situation in which the grommet 2 comes out of the inner panel 20 is reliably eliminated.

On the other hand, the largest width of the step portion 16 is ensured in the locking recess 17, so that the locking surface 1 of the locking claw 12 is prevented.
5 has a large area and will be engaged. Therefore, it is possible to reliably withstand the force of pulling out the pin member 1 in the axial direction as it is, so that the assist grip 4
Can be securely fixed.

As described above, in the present embodiment, if the pin member 1 is inserted into the grommet 2, the twist only needs to be applied in the horizontal plane after that, so that the cumbersome screw tightening work as in the related art is not required. . Therefore, it is particularly meaningful to mount a product such as the molded ceiling 3 which requires an upward operation. In addition, since the retaining surface 15 and the step 16 are engaged with each other with a large hooking surface while being a simple operation of adding a twist, the detachment preventing effect is extremely large. Furthermore, even when the assist grip 4 needs to be removed, the pin member 1 can be pulled out as it is by turning the pin member 1 in the opposite direction and returning the locking claws 12 to the opening position of the slit 24. Therefore, the removal operation is also easy.

Second Embodiment FIGS. 8 and 9 show a second embodiment of the present invention. In the second embodiment, the number of parts is reduced by integrally forming the grommet 2 with the assist grip 4. In this embodiment, the mounting hole 21 is a square hole.
The grommet 2 (assist grip 4) is formed even when the pin member 1 is twisted.
Is stopped.

The other configuration is the same as that of the first embodiment.

The present invention can be variously modified,
The following modifications are also included in the technical scope of the present invention.

Various members can be selected for the member to be mounted, and the member is not limited to the embodiment.

In this embodiment, an example is shown in which the grommet is adhered to the member to be mounted. However, the grommet may be attached to the body by itself.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a pin member and a grommet.

FIG. 2 is also a front view

FIG. 3 is a longitudinal sectional view showing a state before the pin member is twisted.

FIG. 4 is a longitudinal cross-sectional view showing a final stop state after the pin member is twisted.

FIG. 5 is a cross-sectional view showing a state in which a locking claw is fitted to a groove.

FIG. 6 is a cross-sectional view showing a state during the twisting operation of the pin member.

FIG. 7 is a cross-sectional view showing a state in which a locking claw is locked in a locking recess.

FIG. 8 is a cross-sectional view of a grommet according to a second embodiment.

FIG. 9 is a vertical cross-sectional view of the same fixed state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Pin member 2 ... Grommet 3 ... Molded ceiling (attached member) 4 ... Assist grip (attached member) 5 ... Head 6 ... Mounting hole 8 ... Insertion groove 12 ... Locking claw 16 ... Step 17 ... Lock Recess 20: inner panel (body) 21: mounting hole 24: slit 27: retaining claw

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Yoshito Hama 3-36 Imaikecho, Anjo-shi, Aichi Pref. No. 36 INOAC CORPORATION Anjo Office

Claims (5)

[Claims] 1. A grommet having a leg that can be inserted into a mounting hole drilled on a body side, and a retaining portion formed on an outer surface of the outer surface of the hole so as to be elastically temporarily locked at a hole edge of the mounting hole. And a head formed to have a diameter larger than a mounting hole formed in the mounted member to be fixed to the body and capable of pressing the mounted member, and the lower surface of the head is provided with the mounting hole through the mounting hole. The insertion shaft part which can be inserted into the leg part comprises a hanging pin member, and furthermore, a locking claw is formed so as to protrude radially outward at the end of the insertion shaft, while the grommet leg part When the insertion shaft portion of the pin member is inserted, a groove portion that allows the engagement of the locking claw is formed along the axial direction, and when the pin member is angularly displaced continuously from the groove portion in the circumferential direction. Expand and deform the legs Mounting structure members characterized leaves the stop portion while locked the engagement, that the step portion for the omission regulation of the locking pawl and engaged locks the pin member is formed. 2. The boundary between the step and the groove, wherein the thickness of the leg is reduced so that the operation of the locking claw transitioning from the groove to the step can be guided. The mounting structure of the members. 3. The member mounting structure according to claim 1, wherein the grommet has a substrate that can be attached to the mounted member. 4. The grommet according to claim 1, wherein the grommet is formed integrally with the mounted member.
A mounting structure for the member described in the above. 5. The member mounting structure according to claim 1, wherein the mounted member is a molded ceiling of a vehicle.