JP2019077403A - Pillar trim attachment/detachment structure - Google Patents

Abstract

To provide a pillar trim attachment/detachment structure which secures deployment of an airbag during a collision and enables improvement of maintainability while reducing a separation distance between a pillar trim and a vehicle body.SOLUTION: A pillar trim attachment/detachment structure includes: a pedestal 21 which is formed into a protruding shape to the body 13 side in a pillar trim 11; and a tether clip 22 provided between the pedestal 21 and the body 13. The pedestal 21 includes: a first opening 21a opening to the body 13 side; and a second opening 21b opening to the lower end part 11c side of the pillar trim 11. The tether clip 22 includes: a first engagement part 22a which engages with the first opening 21a so as to be fitted or be removed in a separation direction in which the pillar trim 11 and the body 13 separate from each other; a second engagement part 22b which engages with the second opening 21b so as to be fitted or removed in a pillar trim 11 extension direction and movable in the separation direction; and a third engagement part 22c fixed to the body 13.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a structure for attaching and detaching a pillar trim provided in a car.

  In recent years, the demand for providing a curtain airbag inside an interior member (front pillar trim) of a car has been increasing. Curtain airbags are mainly installed for the purpose of reducing the impact of the occupant's head in the event of a side impact of the vehicle.

  The front pillar trim is designed such that the upper end portion thereof comes off when the built-in curtain airbag expands. At the time of oblique collision of a car, the occupant is pushed toward the side of the curtain airbag by the impact load, and there is a possibility that the upper end portion of the occupant touches the face or the head of the occupant. Therefore, as a countermeasure against this, there is provided a structure for restricting the amount of movement of the front pillar trim at the time of deployment of the curtain airbag.

JP 2003-95033 A

  By the way, since a front pillar trim incorporating the above-described curtain airbag is provided with an ETC, a car navigation harness and the like inside, it is necessary to appropriately carry out maintenance by removing the front pillar trim. In such a case, the operator cuts the movement restricting portion while looking into the tether clip in a narrow space.

  In addition, it is clear that the distance between the front pillar trim and the body at the time of curtain air bag deployment improves the safety at the time of oblique collision as the distance between the front pillar trim and the body decreases. The more difficult it is to cut the movement restriction portion before maintenance, the higher the possibility of contacting and damaging peripheral parts. That is, there is a possibility that maintenance becomes worse or maintenance becomes impossible. Therefore, although the above-mentioned patent documents 1 are considered about safety at the time of deployment of an air bag, they are not considered about maintenance nature.

  SUMMARY OF THE INVENTION In view of the above technical problems, the present invention provides a pillar trim attaching / detaching structure capable of improving the maintainability while reducing the amount of detachment of the pillar trim after securing the airbag deployment at the time of a collision. With the goal.

The pillar trim attaching / detaching structure according to the first invention for solving the above-mentioned problems is
Pillar trim that covers the vehicle body from the inside,
It is arranged in the space formed between the body and the pillar trim, one end is fitted to the body, and the other end is fitted to a pedestal formed on the inner wall of the pillar trim toward the body. Equipped with
The pedestal is
A first opening opening toward the body side;
And a second opening opening toward the lower end side of the pillar trim,
The clip is
A first engagement portion engageable with and disengageable from the first opening in a direction in which the pillar trim and the body separate from each other;
A second engagement portion that engages with the second opening in the extension direction of the pillar trim and is releasably engaged, and restricts the movement of the pillar trim when the first engagement portion is disengaged in the separation direction. When,
And a third engaging portion fixed to the body.

The pillar trim attaching / detaching structure according to the second invention for solving the above-mentioned problems is
In the pillar trim attaching / detaching structure according to the first aspect of the invention,
The second opening is provided on the side surface on the lower end side of the pedestal,
The side surface is inclined such that a region including at least the second opening faces the body side with respect to the separation direction.

The pillar trim attaching / detaching structure according to the third invention for solving the above-mentioned problems is:
In the pillar trim attaching / detaching structure according to the second invention,
The second engagement portion includes a movement restricting portion that restricts movement in a direction in which the pedestal is separated from the body.

The pillar trim attaching / detaching structure according to the fourth invention for solving the above-mentioned problems is
In the pillar trim attaching / detaching structure according to the third invention,
The opening end portion is characterized in that a protrusion protruding toward the pillar trim is formed.

A pillar trim attaching and detaching structure according to a fifth aspect of the present invention for solving the above-mentioned problems is:
In the pillar trim attaching / detaching structure according to the fourth invention,
The second engaging portion is characterized in that an end portion abutting on the protrusion has an angular shape corresponding to the shape of the protrusion.

A pillar trim attaching and detaching structure according to a sixth aspect of the present invention for solving the above-mentioned problems is:
In the pillar trim attaching / detaching structure according to any one of the first to fifth inventions,
The second engaging portion is characterized in that an end portion on the upper end portion side of the pillar trim is a curved surface.

  The pillar trim attaching / detaching structure according to the present invention makes it possible to improve the maintainability while reducing the amount of detachment of the pillar trim after securing the airbag deployment at the time of a collision.

It is a perspective view which shows a tether clip among the pillar trim attachment or detachment structures which concern on the Example of this invention. It is a perspective view showing a pedestal and a tether clip among pillar trim attachment or detachment structures concerning an example of the present invention. It is a schematic cross section arrow line view explaining the normal state of the pillar trim attachment or detachment structure which concerns on the Example of this invention. It is a schematic cross section arrow line view explaining the state at the time of curtain airbag deployment of the pillar trim attachment or detachment structure which concerns on the Example of this invention. It is a schematic cross section arrow line view explaining the state before the maintenance of the pillar trim attachment or detachment structure which concerns on the Example of this invention. It is a schematic cross section arrow line view explaining the state after the maintenance of the pillar trim attachment or detachment structure which concerns on the Example of this invention. It is a perspective view which shows the vehicle interior of a front pillar trim periphery.

  Hereinafter, a pillar trim attaching / detaching structure according to the present invention will be described with reference to the drawings in an embodiment.

  FIG. 1 is a perspective view showing a tether clip (clip) 22 in the pillar trim attaching / detaching structure according to the present embodiment. FIG. 2 is a perspective view showing the entire pillar trim attaching / detaching structure according to the present embodiment. FIG. 3 is a schematic cross-sectional view of the pillar trim attaching / detaching structure (normal state) according to the present embodiment. As shown in FIGS. 1 to 3, the pillar trim attaching / detaching structure according to the present embodiment includes a pedestal 21 and a tether clip 22.

  The pedestal 21 (FIGS. 2 and 3) forms a space between itself and the front pillar trim 11 on the inner circumferential surface 11b of the front pillar trim (interior member) 11 covering the body 13 from the vehicle inner side. And the front pillar panel 13 is convexly formed. The pedestal 21 is formed on the upper surface 21c facing the body 13 (that is, opened at the body 13 side) the first opening 21a and the lower end 11a of the front pillar trim 11 (longitudinal lower side of the front pillar trim 11 A second opening 21b formed on the side surface 21d of the front pillar trim 11 (that is, opened toward the lower end 11a side of the front pillar trim 11) and a connection opening 21e connecting the first opening 21a and the second opening 21b ( 2), and the first opening 21a and the second opening 21b, and the connection opening 21e communicate with the space formed by the front pillar trim 11 and the pedestal 21. As shown in FIG.

  Further, in the side surface 21d in which the second opening 21b is formed, the region including at least the second opening 21b does not extend in the separation direction between the front pillar trim 11 and the body 13, but from the separation direction Also, it is inclined to face the body 13 side. And the projection part 21ba which protruded on the inner peripheral surface 11b side of the front pillar trim 11 is formed in the edge part by the side of the 2nd opening part 21b of the upper surface 21c. That is, in the present embodiment, as shown in FIG. 3, the inclined surface is formed on the lower side surface 21d of the pedestal 21, and the second opening 21b and the projection 21ba are formed closer to the upper surface 21c of the inclined surface. .

  The connection opening 21 e is formed smaller in diameter than the first opening 21 a and the second opening 21 b at the insertion position of the movement restricting portion 22 e described later.

  On the other hand, the tether clip 22 is disposed in the space formed between the body 13 and the pillar trim 11, one end is fitted to the body 13, and the other end is formed on the inner wall of the pillar trim 11 toward the body 13 side. The seat 21 is fitted to the base 21. The tether clip 22 includes a first engaging portion 22a, a second engaging portion 22b, a third engaging portion 22c, a flat plate 22d, and a movement restricting portion 22e.

  The first engagement portion 22 a engages with the first opening 21 a of the pedestal 21 in a detachable manner in the direction in which the front pillar trim 11 and the body 13 are separated.

  Further, the second engagement portion 22b engages with the second opening 21b of the pedestal 21 in the extending direction of the front pillar trim so as to be releasably engageable therewith, and at least in the separation direction of the front pillar trim 11 and the body 13 The first engaging portion 22a movably engages a movement distance necessary for releasing the engagement with the first opening 21a.

  That is, when the curtain airbag (not shown) is deployed, the impact due to this deployment is applied to the front pillar trim 11 in the direction of separating from the body 13, whereby the first opening 21 a of the pedestal 21 formed in the front pillar trim 11 Is disengaged from the first engagement portion 22a. On the other hand, the second engagement portion 22b is left inside the pedestal 21 (the internal space formed by the pedestal 21 and the front pillar trim 11), and is regulated so that the pillar trim 11 is not moved more than a predetermined movement distance. .

  The third engaging portion 22c has a flange portion 22ca and a hook portion 22cb which are larger in diameter than the third opening 13a formed in the body 13, and is sandwiched by the flange portion 22ca and the hook portion 22cb. It is fixed to the third opening 13a.

  The first engaging portion 22a and the third engaging portion 22c are fixed to both surfaces of the flat plate 22d, and the flat plate 22d has a diameter larger than that of the third opening 13a and the first opening 21a. The movement restricting portion 22e is formed to connect the second engagement portion 22b and the flat plate 22d, and a portion thereof is inserted into the pedestal 21 through the connection opening 21e and the second opening 21b. It is done.

  Furthermore, of the second engagement portion 22b, the end portion is the end portion on the lower end portion 11a side of the front pillar trim 11, and is the end portion that contacts the inside (the inside of the pedestal 21) of the protrusion 21ba when the curtain airbag described later is developed. The lower end portion side end 22bb preferably has an angular shape corresponding to the inner shape of the protrusion 21ba.

  The second engaging portion 22b is an end portion on the upper end 11c side of the front pillar trim 11 when the second engaging portion 22 is passed from the second opening 21b to the inside of the pedestal 21. The upper end portion side end portion 22ba which is an end portion in contact with the portion 21b may have an R shape (curved surface).

  4 shows the curtain airbag of the pillar trim attaching / detaching structure according to this embodiment when deployed, FIG. 5 shows the pillar trim attaching / detaching structure according to this embodiment before maintenance, and FIG. 6 shows the pillar trim attached / detached according to this embodiment. The state after maintenance of the structure is shown. The definition of maintenance here is as described above.

  When the curtain airbag is deployed, a load is applied to the front pillar trim 11 in a direction away from the body 13, whereby the first engagement portion 22a is disengaged from the first opening 21 of the pedestal 21 as shown in FIG. . On the other hand, the engagement between the third engagement portion 22c and the third opening 13a is maintained.

  In addition, the second engagement portion 22b abuts on the open end of the second opening 21b at the side of the body 13 (the lower end 22bb is engaged with the projection 21ba) and is locked. . As a result, the lower end portion side end 22bb abuts on the protrusion 21ba even when the first engagement portion 22a moves in the disengaging direction, and the movement in the direction in which the pedestal 11 separates from the body 13 is restricted. That is, the second engaging portion 22b engages with the second opening 21b in the extending direction of the front pillar trim 11, and the first engaging portion in the separating direction between the front pillar trim 11 and the body 13 The movement of the front pillar trim 11 is restricted when the engagement 21 is released.

  At this time, the separation distance of the front pillar trim 11 from the body 13 is determined by the length of the movement restricting portion 22 e (the movement of the pedestal 11 in the direction of separating from the body 13 is restricted). However, as described above, in order to reliably deploy the curtain airbag, at least the first engagement portion 22a has the first opening in the separation direction of the front pillar trim 11 and the body 13 as described above. It must be set to move the moving distance necessary to release the engagement with 21a. In the present embodiment, the length of the movement restricting portion 22e connecting the flat plate 22d and the second engaging portion 22b is the length from the flat plate 22d to the end of the first engaging portion 22a (the first engaging portion 22a The second engaging portion 22b extends toward the first engaging portion 22a at the end of the movement restricting portion which is longer than the longitudinal direction length and extends from the flat plate 22d. With such a structure, as described later, it becomes effective against desorption during deployment or maintenance of the curtain airbag.

  That is, by restricting the movement of the front pillar trim 11 from the body 13 when the curtain airbag is deployed by the movement restriction portion 22e, the front pillar trim 11 is largely separated from the body 13 and the upper end portion 11c of the vehicle occupant It is possible to prevent the direction.

  Further, when performing maintenance, the operator first displaces the front pillar trim 11 upward in the extending direction (longitudinal direction), and removes the lower end portion 11a of the front pillar trim 11 from the instrument panel 12 (FIG. 7).

  Thereafter, as shown in FIG. 5, the operator removes the first opening 21a from the first engaging portion 22a, and as indicated by the outlined arrow, the front pillar trim 11 is on the upper end 11c side (opposite to the instrument panel 12 side). Direction), and the second engaging portion 22b is extracted to the outside of the pedestal 21 from the second opening 21b. As a result, the front pillar trim 11 can be removed from the body 13, and maintenance can be facilitated.

  In the pillar trim attaching / detaching structure according to this embodiment, since the movement restricting portion 22e can be removed from the pedestal 21 as described above, it is not necessary to perform cutting as in the conventional case, and peripheral parts may be damaged. It disappears. Therefore, it is not necessary to secure a separation distance (disengagement amount) between the front pillar trim 11 and the body 13 for cutting.

  Therefore, the separation distance (displacement amount) between the front pillar trim 11 and the body 13 at the time of curtain air bag deployment and the distance (for example, about 10 mm) which can prevent the upper end portion 11c from facing toward the occupant more reliably at the time of oblique collision. The length of the movement restricting portion 22e can be designed to be an optimal length so as to be. That is, the pillar attachment and detachment structure according to the present embodiment can improve both the safety and the maintainability at the time of oblique collision.

  Further, after maintenance, when inserting the lower end portion 11a of the front pillar trim 11 toward the instrument panel 12, the second engagement is achieved by moving the front pillar trim 11 in the direction indicated by the white arrow in FIG. By inserting the portion 22b into the inside of the pedestal 21 from the second opening 21b and engaging the first engaging portion 22a with the first opening 21a, the normal state shown in FIG. 3 can be restored.

  That is, in the pillar trim attaching / detaching structure according to the present embodiment, since the movement restricting portion 22e is not cut as in the prior art, it is not necessary to replace the tether clip 22 with a new one at the time of maintenance.

  In the pillar trim attaching / detaching structure according to the present embodiment, the second opening 21 b of the pedestal 21 is formed on the insertion side to the instrument panel 12, that is, the side 21 d on the lower end 11 a side of the front pillar trim 11. In addition, when the front pillar trim 11 is removed from the body 13, the second engaging portion 22b can be easily removed from the second opening 21b, so that the work can be easily performed.

  Further, by forming the second opening 21b on the inclined side surface 21d, the second opening 21b and the second engaging portion 22b can be easily visually checked when removing the front pillar trim 11 before the maintenance, and after the maintenance again When inserting the second engaging portion 22b into the second opening 21b, it can be inserted while sliding this inclination as a guide, and the inclined side 21d has the same space as the conventional vertical side 31d. Because the open area can be taken wide and it becomes easy to insert, the operation becomes easy.

  In addition, it is preferable to use a hard material such as PA66 (polyamide 66, 66 nylon) for the tether clip 22 (in particular, the first engagement portion 22a and the second engagement portion 22b). By doing this, the first opening 21a and the second opening 21b of the pedestal 21 can be easily inserted and removed from the first engaging portion 22a and the second engaging portion 2b of the tether clip 22 before and after maintenance. be able to.

  Further, as described above, by forming the upper end portion side end portion 22ba of the second engagement portion 22b into an R shape, after maintenance, the second engagement portion 22b is inserted into the second opening 21b as shown in FIG. It is hard to get caught and easy to insert.

  Furthermore, as described above, the protrusion 21ba is formed at the second opening 21b end of the upper surface 21c of the pedestal 21, and the lower end 22bb of the second engaging portion 22b of the tether clip 22 is the protrusion 21ba. When the curtain airbag is deployed, the projection 21ba is engaged with the lower end portion side end 22bb and the second engagement portion 22b is disengaged from the pedestal 21. It can prevent.

  As mentioned above, although the pillar attachment or detachment structure which concerns on a present Example was demonstrated, a present Example is not limited to the front pillar trim which includes a curtain airbag, It is applicable also to any pillar trim.

  The present invention is suitable as a structure for attaching and detaching a pillar trim provided in an automobile.

11 Front pillar trim (interior member)
11a Lower end 11b Inner circumferential surface 11c Upper end 12 Instrument panel 13 Body 13a Third opening 21 Base 21a First opening 21b Second opening 21b Projection 21c Top 21d Side 21e Connection opening 22 Tether clip (clip)
22a first engagement portion 22b second engagement portion 22ba upper end portion side end portion 22bb lower end portion side end portion 22c third engagement portion 22ca flange portion 22cb hook portion 22d flat plate 22e movement restricting portion

Claims (6)

Pillar trim that covers the vehicle body from the inside,
It is arranged in the space formed between the body and the pillar trim, one end is fitted to the body, and the other end is fitted to a pedestal formed on the inner wall of the pillar trim toward the body. Equipped with
The pedestal is
A first opening opening toward the body side;
And a second opening opening toward the lower end side of the pillar trim,
The clip is
A first engagement portion engageable with and disengageable from the first opening in a direction in which the pillar trim and the body separate from each other;
A second engagement portion that engages with the second opening in the extension direction of the pillar trim and is releasably engaged, and restricts the movement of the pillar trim when the first engagement portion is disengaged in the separation direction. When,
A pillar trim attaching / detaching structure comprising: a third engaging portion fixed to the body. The second opening is provided on the side surface on the lower end side of the pedestal,
The pillar trim attaching / detaching structure according to claim 1, wherein the side surface is inclined such that a region including at least the second opening faces the body side with respect to the separation direction. The pillar trim attaching / detaching structure according to claim 2, wherein the second engaging portion has a movement restricting portion which restricts the movement in the direction in which the pedestal separates from the body. The pillar trim attaching / detaching structure according to claim 3, wherein a projection projecting toward the pillar trim is formed at the opening end. 5. The pillar trim attaching / detaching structure according to claim 4, wherein an end of the second engaging portion in contact with the protrusion has an angular shape corresponding to a shape of the protrusion. The pillar trim attaching / detaching structure according to any one of claims 1 to 5, wherein an end of the second engaging portion on an upper end side of the pillar trim is a curved surface.

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