JP5890281B2 - Pillar garnish mounting structure and curtain garnish containing curtain airbags - Google Patents

Description

  The present invention relates to a mounting structure for a pillar garnish that houses a curtain airbag and a pillar garnish.

  2. Description of the Related Art Conventionally, a curtain airbag device for a vehicle that protects a seated occupant's head by inflating and deploying a curtain airbag along a side window from an end of the roof head lining in the vehicle width direction at the time of a side collision is known. (For example, refer to Patent Documents 1 to 3).

  Among these, in Patent Document 1, the front pillar garnish is detached from the locking portion (clip portion) of the tether clip by the deployment pressure of the curtain airbag by attaching the front pillar garnish to the front pillar inner panel using a tether clip. Techniques for making them disclosed are disclosed. This facilitates deployment of the curtain airbag in the housed state, and prevents or prevents the front pillar garnish from scattering.

JP 2006-176089 A JP 2007-098986 A JP 2009-274578 A

  However, in the case of the prior art disclosed in Patent Document 1, there are problems described below. That is, when the curtain airbag in the storage state is deployed, the curtain airbag pulls the front pillar garnish toward the vehicle interior side and the vehicle lower side. At this time, the vertical wall of the clip seat provided on the front pillar garnish is stretched, and the clip seat is difficult to rotate with respect to the body (front pillar inner panel). In that case, the relative movement amount between the clip seat and the clip portion with the body is reduced, and the clip portion is difficult to be separated from the clip seat. As a result, it becomes difficult to open the front pillar garnish, causing a delay in the deployment of the curtain airbag, and causing a problem that the front pillar garnish (particularly, the clip seat) is likely to break due to an impact force when the curtain airbag is deployed.

  In consideration of the above-mentioned facts, the present invention can provide a pillar garnish mounting structure and a pillar garnish containing a curtain airbag that can facilitate deployment of the curtain airbag and suppress or prevent cracking of the pillar garnish. Is the purpose.

A structure for attaching a pillar garnish containing a curtain airbag according to the first aspect of the present invention includes a fastening portion fastened to a body panel, and a locking and disengagement direction provided integrally with the fastening portion. A tether clip comprising: a clip portion having an elastically deformable locking portion; a tether portion extending a predetermined length from the clip portion; and an anchor portion provided at a tip portion of the tether portion; and a body panel The clip is provided on the back surface side of the pillar garnish main body in which the curtain airbag folded between the back surface and the clip is disposed, spaced from the back surface to the body panel side, forming a seating surface, and the clip The part is inserted and locked around the hole, and in the assembled state, the tether part can be inserted and the anchor part cannot be inserted. A top wall portion having a through hole; a vertical wall portion connecting the top wall portion and the pillar garnish main body; the vertical wall portion and the top wall portion located on a side opposite to a deployment direction of the curtain airbag. possess the inclined portion which is inclined in the direction set and seat surface to the connecting portion is reduced, and the clip seat having a, a, the inclined portion is comprised of a flat surface, said vertical wall portion A bent portion is formed at a connection site with the inclined portion .

The pillar garnish according to the second aspect of the present invention is provided on the back side of the pillar garnish main body capable of storing a curtain airbag folded between the body panel and the back side of the pillar garnish main body. A clip portion of a tether clip that is disposed at a separated position, forms a seating surface, and is fastened to the body panel to connect the body panel and the pillar garnish main body is inserted and locked to the periphery of the hole. In addition, in the assembled state, the top wall portion having an insertion hole in which the tether portion of the tether clip can be inserted and the anchor portion provided at the tip portion of the tether portion of the tether clip cannot be inserted; A vertical wall that connects the top wall and the pillar garnish main body, and a side opposite to the deployment direction of the curtain airbag Possess an inclined portion in which the vertical wall portion is a set in the connection portion between the top wall and the seat surface located is inclined in a direction to be reduced, and the clip seat having a, a, the inclined portion is flat A bent portion is formed at a connection portion of the vertical wall portion with the inclined portion .

  According to the first aspect of the present invention, the clip seat is provided on the back side of the pillar garnish body, and the clip portion of the tether clip is inserted into the insertion hole formed in the top wall portion of the clip seat. Locked to the hole locking portion. Thereafter, the fastening portion of the tether clip is fastened to the body panel. When the pillar garnish is assembled to the body panel, the folded curtain airbag is housed between the pillar garnish main body and the body panel.

  On the other hand, when a side collision or rollover occurs, the curtain airbag is inflated and deployed. Due to the deployment pressure of the curtain airbag at this time, the pillar garnish clip seat is pulled downward (rear of the vehicle) and toward the interior of the vehicle.

Here, in the present invention, it is composed of a vertical wall portion and a flat surface located on the opposite side to the deployment direction of the curtain airbag, and the direction in which the seating surface of the top wall portion is reduced at the connection portion with the top wall portion. Since the inclined portion inclined toward the upper surface is formed, the width of the seating surface of the top wall portion is reduced by that amount, and a bending point is formed at the connection portion between the vertical wall portion and the inclined portion. For this reason, when the deployment pressure of the curtain airbag is applied to the clip seat, the clip seat easily falls to the side where the inclined portion is formed, and the clip seat easily rotates relative to the body panel. As a result, the amount of relative movement between the seat surface (top wall portion) of the clip seat and the tether clip fastened to the body panel increases, and the clip portion of the tether clip is easily removed from the insertion hole of the clip seat. In particular, in the present invention, since the inclined portion is formed at the connection portion between the vertical wall portion and the top wall portion, the pulling load acting on the clip portion from the clip seat changes abruptly. Therefore, it becomes easy for the clip part to come out from the insertion hole of the clip seat. After the clip part is removed from the insertion hole of the clip seat, the tether part passes through the insertion hole of the clip seat until the anchor part of the tether clip is locked to the peripheral part of the insertion hole of the clip seat. Only the pillar garnish opens away from the body panel.

  According to the second aspect of the present invention, the clip seat is provided on the back side of the pillar garnish body, and the clip portion of the tether clip is inserted into the insertion hole formed in the top wall portion of the clip seat. Locked to the hole locking portion. Thereafter, the tether clip is fastened to the body panel. When the pillar garnish is assembled to the body panel, the folded curtain airbag is housed between the pillar garnish main body and the body panel.

  On the other hand, when a side collision or rollover occurs, the curtain airbag is inflated and deployed. Due to the deployment pressure of the curtain airbag at this time, the pillar garnish clip seat is pulled to the vehicle lower side (vehicle rear side) and the vehicle interior side.

Here, in the present invention, it is composed of a vertical wall portion and a flat surface located on the opposite side to the deployment direction of the curtain airbag, and the direction in which the seating surface of the top wall portion is reduced at the connection portion with the top wall portion. Since the inclined portion inclined toward the upper surface is formed, the width of the seating surface of the top wall portion is reduced by that amount, and a bending point is formed at the connection portion between the vertical wall portion and the inclined portion. For this reason, when the deployment pressure of the curtain airbag is applied to the clip seat, the clip seat easily falls to the side where the inclined portion is formed, and the clip seat easily rotates relative to the body panel. As a result, the amount of relative movement between the seat surface (top wall portion) of the clip seat and the tether clip fastened to the body panel increases, and the clip portion of the tether clip is easily removed from the insertion hole of the clip seat. In particular, in the present invention, since the inclined portion is formed at the connection portion between the vertical wall portion and the top wall portion, the pulling load acting on the clip portion from the clip seat changes abruptly. Therefore, it becomes easy for the clip part to come out from the insertion hole of the clip seat. After the clip part is detached from the insertion hole of the clip seat, the pillar garnish opens away from the body panel according to the length of the tether.

  As described above, the pillar garnish mounting structure according to the first aspect of the present invention and the pillar garnish according to the second aspect of the present invention make it easy to deploy the curtain airbag and prevent the pillar garnish from cracking. Or it has the outstanding effect that it can prevent.

It is a plane sectional view of the attachment state of the attachment structure of the pillar garnish which accommodated the curtain airbag concerning this embodiment. FIG. 2 is a plan sectional view showing a state when the curtain airbag is inflated and deployed from the state shown in FIG. 1. It is a principal part expanded sectional view which expands and shows the 3 line | wire arrow part shown by FIG. It is the perspective view seen from the back side showing the whole front pillar garnish composition concerning this embodiment.

  Hereinafter, an embodiment of a pillar garnish mounting structure in which a curtain airbag according to the present invention is housed and an embodiment of the pillar garnish will be described with reference to FIGS. In these drawings, an arrow FR appropriately shown indicates the vehicle front side, an arrow UP indicates the vehicle upper side, and an arrow IN indicates the vehicle width direction inner side.

  As shown in FIG. 1, the front pillar 10 is a metal body skeleton member that is erected along the vehicle vertical direction at a front edge in the vehicle longitudinal direction of a door opening 12 formed on the side of the vehicle body. It is. Structurally, the front pillar 10 includes a pillar inner panel 14 disposed on the inner side in the vehicle width direction and a closed cross-section portion 16 disposed between the pillar inner panel 14 and the pillar inner panel 14 on the outer side in the vehicle width direction. And a pillar outer panel 20 that is disposed outside the pillar reinforcement 18 in the vehicle width direction and forms the outer plate of the front pillar 10.

  Three front flanges and rear flanges of the pillar inner panel 14, the pillar reinforcement 18, and the pillar outer panel 20 are respectively overlapped to form a front flange portion 22 and a rear flange portion 24. The front flange portion 22 extends inward in the vehicle width direction when viewed in a plan view, and an end portion 26A on the outer side in the vehicle width direction of the windshield glass 26 is disposed on the front side in the vehicle front-rear direction via an adhesive (not shown). Can be attached. The rear flange portion 24 extends substantially rearward in the plan view, and a door opening weather strip 28 made of an elastic material (rubber) is fitted to the rear flange portion 24. Yes.

  A resin-made front pillar garnish 30 is lined on the inner side in the vehicle width direction of the pillar inner panel 14 in the front pillar 10 described above. As shown in FIG. 4, the front pillar garnish 30 includes a pillar garnish main body 32 (hereinafter, simply referred to as “garnish main body 32”) having a substantially C-shaped flat cross-sectional shape. At the lower end of the garnish main body 32, an insertion portion 34 that extends downward in the assembled state is integrally formed. The insertion portion 34 is inserted into an end portion on the outer side in the vehicle width direction of an instrument panel (not shown). In addition, a clip seat 36 formed in a hollow, substantially quadrangular prism shape is integrally formed on the back surface of the intermediate portion in the longitudinal direction of the garnish main body 32. A clip 38 made of resin is attached to the clip seat 36. The clip 38 is inserted into a mounting hole (not shown) formed in the pillar inner panel 14 and is elastically locked, whereby the longitudinal middle portion of the front pillar garnish 30 is fastened to the pillar inner panel 14. Yes.

  Further, as shown in FIG. 1, a clip seat 40 formed in a hollow, substantially quadrangular prism shape is integrally formed on the back surface of the upper end portion of the garnish main body 32. The clip seat 40 includes a top wall portion 40A disposed substantially parallel to the back surface of the garnish main body 32, a front wall portion 40B as a vertical wall portion connecting the top wall portion 40A and the back surface of the garnish main body 32, and the rear. It is comprised by the wall part 40C and the lower wall part 40D. That is, the vertical wall portion exists only in the three directions of the clip seat 40 in the vehicle front-rear direction and the vehicle lower side, and is not formed on the vehicle upper side. The plate thickness of the top wall portion 40A and the rear wall portion 40C is set to be thicker than the plate thickness of the front wall portion 40B.

  The front wall portion 40B is erected substantially perpendicular to the back surface of the garnish main body 32, whereas the rear wall portion 40C is erected in a state inclined at a predetermined angle with respect to the back surface of the garnish main body 32. Note that the inclination direction of the rear wall portion 40C is an inclination direction in which the outer portion in the vehicle width direction is positioned on the vehicle front side with respect to the inner portion in the vehicle width direction. In addition, a rib 42 that is substantially L-shaped in a plan view is integrally formed at the base of the front wall portion 40B. Further, a thin portion 44 is formed at the base of the rear wall portion 40 </ b> C by being cut out from the inside of the clip seat 40. An insertion hole 46 is formed in the top wall portion 40A. The insertion hole 46 is formed in a minus hole shape having a substantially vehicle vertical direction as a long side direction.

  On the other hand, a tether clip 50 that connects the front pillar garnish 30 and the pillar inner panel 14 of the front pillar 10 is attached to the insertion hole 46 of the clip seat 40. The tether clip 50 is configured as a single shaft-shaped resin member as a whole. A first flange portion 52 formed in a substantially rectangular flat plate shape and a second flange portion 54 formed in a substantially disk shape are arranged with a slight gap at an intermediate portion in the axial direction of the tether clip 50. Yes. The 1st flange part 52 and the 2nd flange part 54 are mutually connected by the neck part 56 arrange | positioned between both. A fastening portion 58 formed in a substantially quadrangular prism shape is erected on the shaft core portion of the second flange portion 54. The fastening portion 58 includes a support portion 58A formed in a substantially gate shape and a pair of front and rear claws 58B integrally formed inside the support portion 58A. The pair of claw portions 58B protrude in a tapered shape from the front and rear side surfaces of the support portion 58A in the natural state. The fastening portion 58 is inserted into a mounting hole 60 formed in the pillar inner panel 14. The mounting hole 60 is set to an inner diameter through which the support portion 58A can be inserted and the pair of claw portions 58B interfere with each other. Therefore, when the fastening portion 58 is inserted into the attachment hole 60, the pair of claw portions 58 </ b> B are elastically deformed in a direction approaching each other and pass through the attachment hole 60, and the elastically restored claw portions 58 </ b> B are formed in the peripheral portion 62 of the attachment hole 60. It is designed to be locked.

  A clip portion 64 is formed integrally with the shaft core portion of the first flange portion 52. The clip part 64 is formed in a substantially rectangular parallelepiped shape. On both sides of the clip portion 64, locking portions 64A that project in the vehicle front-rear direction are integrally formed. Each locking portion 64 </ b> A is formed in a substantially V shape, and the distance between the tops of the pair of locking portions 64 </ b> A is set longer than the front-rear width of the insertion hole 46 of the clip seat 40. Therefore, when the clip portion 64 is inserted through the insertion hole 46 of the clip seat 40, the roots of the pair of locking portions 64 </ b> A are positioned and locked to the peripheral portion 66 of the insertion hole 46. Further, when the pair of locking portions 64A are pressed in a direction in which the clip portions 64 approach each other, the clip portion 64 is compressed in the pressing direction and elastically deformed. When the clip portion 64 is elastically deformed, the distance between the top portions of the pair of locking portions 64 </ b> A becomes equal to or less than the front-rear width of the insertion hole 46, and can be pulled out from the insertion hole 46.

  A square columnar and string-like tether portion 68 extends from the tip of the clip portion 64. The tether portion 68 has a shape curved in a substantially J shape. The length of the tether portion 68 is set according to the distance by which the garnish main body 32 is separated from the pillar inner panel 14 when a curtain airbag 78 described later is deployed. Furthermore, a substantially ginkgo leaf-shaped anchor portion 70 is integrally formed at the tip of the tether portion 68. The anchor part 70 is formed in a plate shape. The plate thickness of the anchor portion 70 is set to be thinner than the front-rear width of the insertion hole 46, and the spreading width of the anchor portion 70 is set to be narrower than the vertical width of the insertion hole 46. Therefore, the projected shape of the anchor portion 70 viewed in the axial direction of the tether portion 68 is a rectangular shape slightly smaller than the opening shape of the insertion hole 46.

  The front part 32A in the front-rear direction of the garnish main body 32 described above extends outward in the vehicle width direction and obliquely forward with respect to the intermediate part 32B in the front-rear direction. In the front space 72 formed between the front portion 32A and the pillar inner panel 14, a routing object 74 such as a wire harness or a drain hose is routed. Further, the pillar garnish, the hose and the like are extended outward in the vehicle width direction, and the rear portion 32C extends outward in the vehicle width direction with respect to the intermediate portion 32B in the front-rear direction. The rear space 76 formed between the rear portion 32C and the pillar inner panel 14 accommodates a curtain airbag 78 that is folded in a long shape.

  Here, as shown in FIG. 1 and FIG. 3, the seat surface is in the vehicle front-rear direction at the connection portion between the front wall portion 40 </ b> B and the top wall portion 40 </ b> A located on the front side in the vehicle front-rear direction of the clip seat 40 described above. An inclined portion 80 is formed which is inclined in a direction that is reduced to a greater angle (more specifically, a direction inclined inward in the vehicle width direction and obliquely forward with respect to the vehicle longitudinal direction). Supplementally, the deployment direction A of the curtain airbag 78 is the vehicle lower side (vehicle rear) and the vehicle interior side direction, and the inclined portion that is also a chamfered portion on the front wall portion 40B that is a vertical wall portion located on the opposite direction side. 80 is formed. Further, the inclined portion 80 is configured by a flat surface, and is not configured by a curved surface such as an arc surface or a curved surface. Since the inclined portion 80 is formed, a bent portion 82 is formed at a connection portion with the inclined portion 80 in the front wall portion 40B.

(Operation and effect of this embodiment)
Next, the operation and effect of this embodiment will be described.
A clip seat 40 is provided on the back surface of the upper end portion of the garnish main body 32. The anchor portion 70 of the tether clip 50 is inserted into the insertion hole 46 formed in the top wall portion 40A of the clip seat 40 and rotated 90 degrees. Then, the clip portion 64 is further inserted and locked to the peripheral portion 66 of the insertion hole 46. Thereafter, the fastening portion 58 of the tether clip 50 is fastened to the mounting hole 60 formed in the pillar inner panel 14. An intermediate portion of the garnish main body 32 is fastened to the pillar inner panel 14 by another clip 38, and a lower end portion of the garnish main body 32 is an insertion hole formed at both end portions in the vehicle width direction of the instrument panel. Each is fixed by inserting it into the. When the front pillar garnish 30 is assembled to the pillar inner panel 14, the folded curtain airbag 78 is stored in the rear space 76 between the rear portion 32 </ b> C of the garnish main body 32 and the pillar inner panel 14. The

  On the other hand, when a side collision or rollover occurs, the curtain airbag 78 is inflated and deployed. Due to the deployment pressure of the curtain airbag 78 at this time, the clip seat 40 of the garnish main body 32 is pulled downward (in the rear of the vehicle) and toward the interior of the vehicle (in the direction of arrow A in FIG. 1).

  Here, in the present embodiment, the seating surface of the top wall portion 40A is reduced in the vehicle front-rear direction at a connection portion between the front wall portion 40B and the top wall portion 40A located on the opposite side to the deployment direction of the curtain airbag 78. An inclined portion 80 is formed to be inclined in the direction in which it is inclined. For this reason, the seating surface width of the top wall portion 40A is reduced by the amount of the inclined portion 80 formed, and a bending point (bending portion 82) is formed at the connection portion between the front wall portion 40B and the inclined portion 80. As a result, the front wall portion 40B does not stretch against the pillar inner panel 14, and therefore the clip seat 40 tends to fall to the side where the inclined portion 80 is formed when the deployment pressure of the curtain airbag 78 is applied.

  More specifically, when the curtain airbag 78 is deployed to the vehicle lower side (vehicle rear side) and the vehicle interior side (direction of arrow A in FIG. 1), the rear portion 32C of the garnish main body 32 opens to the vehicle width direction inner side. At this time, since the rear wall portion 40C of the clip seat 40 is pulled toward the arrow B direction in FIG. 1, the rear wall portion 40C is bent at the thin portion 44 having relatively low rigidity. On the other hand, since the inclined portion 80 is provided at the connection portion between the top wall portion 40A and the front wall portion 40B as described above, the seating surface width of the top wall portion 40A is reduced and at the same time, the portion chamfered by the inclined portion 80. A space for play is formed. Moreover, since the inclined portion 80 is formed, the bent portion 82 functions as a folding start point. As a result, the clip seat 40 can easily move in the direction of arrow C in FIG. 1, and the clip seat 40 can easily rotate with respect to the pillar inner panel 14. As a result, the amount of relative movement between the seat surface (top wall portion 40A) of the clip seat 40 and the tether clip 50 fastened to the pillar inner panel 14 increases, and the clip portion 64 of the tether clip 50 passes through the insertion hole of the clip seat 40. It becomes easy to come out of 46.

  In particular, in the present embodiment, since the inclined portion 80 is formed at the connection portion between the front wall portion 40B and the top wall portion 40A, the pulling load acting on the clip portion 64 from the clip seat 40 changes abruptly. If the connection part is an arc surface, the pulling load acting on the clip part 64 acts smoothly. Due to this difference, in the case of the present embodiment, the clip portion 64 is easily removed from the insertion hole 46 of the clip seat 40.

  After the clip portion 64 is detached from the insertion hole 46 of the clip seat 40, the anchor portion 70 of the tether clip 50 is locked to the peripheral portion 66 of the insertion hole 46 of the clip seat 40 as shown in FIG. Until the tether portion 68 passes through the insertion hole 46 of the clip seat 40, the front pillar garnish 30 is separated from the pillar inner panel 14 and greatly opens.

  As described above, the mounting structure of the front pillar garnish 30 and the front pillar garnish 30 according to the present embodiment can easily deploy the curtain airbag 78 and can suppress or prevent the front pillar garnish 30 from cracking. .

  In the above-described embodiment, the present invention is applied to the front pillar garnish 30. However, the present invention is not limited to this, and the present invention may be applied to the rear pillar garnish.

10 Front pillar 14 Pillar inner panel (body panel)
30 Front pillar garnish 32 Pillar garnish body 40 Clip seat 40A Top wall 40B Front wall (vertical wall)
40C Rear wall (vertical wall)
40D Lower wall (vertical wall)
46 Insertion hole 50 Tether clip 58 Fastening portion 64 Clip portion 64A Locking portion 66 Peripheral portion 68 Tether portion 70 Anchor portion 78 Curtain airbag 80 Inclined portion

Claims (2)

A fastening portion fastened to the body panel, a clip portion that is provided integrally with the fastening portion and has a locking portion that can be elastically deformed in the locking and disengaging directions, and extends a predetermined length from the clip portion A tether clip comprising a tether portion and an anchor portion provided at the tip of the tether portion;
Provided on the back side of the pillar garnish main body in which the curtain airbag folded between the body panel and the body panel is housed, disposed at a position spaced from the back side to the body panel side and forming a seat surface; The clip portion is inserted and locked to the periphery of the hole, and in the assembled state, a top wall portion having an insertion hole that is sized so that the tether portion can be inserted and the anchor portion cannot be inserted, and The vertical wall portion that connects the wall portion and the pillar garnish main body, and the seating surface is reduced at the connection portion between the vertical wall portion and the top wall portion located on the opposite side to the deployment direction of the curtain airbag. A clip seat provided with an inclined portion inclined in a direction to be
I have a,
The inclined portion is configured by a flat surface, and a bent portion is formed at a connection portion with the inclined portion in the vertical wall portion.
Pillar garnish mounting structure that houses curtain airbags. Pillar garnish body that can store the curtain airbag folded between the body panel,
A tether clip provided on the back side of the pillar garnish main body, disposed at a position spaced from the back side, forming a seating surface, and fastened to the body panel to connect the body panel and the pillar garnish main body. The clip portion of the tether clip is inserted and locked around the hole and the tether portion of the tether clip can be inserted in the assembled state, and the anchor portion provided at the tip of the tether portion of the tether clip cannot be inserted. A top wall portion having an insertion hole having a size, a vertical wall portion connecting the top wall portion and the pillar garnish body, the vertical wall portion located on the opposite side to the deployment direction of the curtain airbag, and the A clip seat provided with an inclined portion that is set at a connection site with the top wall portion and is inclined in a direction in which the seating surface is reduced;
I have a,
The inclined portion is configured by a flat surface, and a bent portion is formed at a connection portion with the inclined portion in the vertical wall portion.
Pillar garnish.

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