JP2020050165A - Upper part interior structure of vehicle - Google Patents

Abstract

To provide a vehicle upper part interior structure capable of improving extensibility of a curtain airbag while simplifying the structure.SOLUTION: A vehicle upper part interior structure in this invention comprises a bracket 50 including a holding part 140 holding a ceiling edge part 6a which is an end part of a top ceiling 6 in a vehicle width direction above the top ceiling 6. An extension guide part is provided to the bracket 50 to include a portion which is provided outside a curtain airbag 71 in a vehicle width direction and extends downward from the curtain airbag 71 toward the ceiling edge part 6a, and to guide the curtain airbag 71 toward the ceiling edge part 6a at extension of the curtain airbag 71.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an upper interior of a vehicle including a pillar trim attached to a pillar defining an opening of a vehicle and covering the pillar from the vehicle interior side, and a top ceiling provided above the pillar trim and covering a ceiling of the vehicle interior. Regarding the structure.

  2. Description of the Related Art Conventionally, a vehicle is provided with a top ceiling that covers a ceiling of a vehicle compartment and a pillar trim that covers a pillar that defines an opening portion of the vehicle from a vehicle compartment side, as interior members. The vehicle may be further provided with an airbag device for protecting an occupant in the event of a vehicle collision or the like.

  For example, Patent Document 1 includes a pillar trim (B pillar garnish) and a top sealing (roof head lining), and is a so-called curtain airbag device, which is housed above the top sealing at the time of a vehicle collision or the like. There is disclosed a vehicle equipped with a device including a curtain airbag that expands downward from a closed state and covers a side wall of the vehicle.

  In the vehicle of Patent Literature 1, both the upper end of the pillar trim and both ends in the vehicle width direction of the top ceiling have a shape extending in the up-down direction, and the outer side of the upper end of the pillar trim in the vehicle width direction has The top ceiling is held by the pillar trim by restricting the upper end of the pillar trim from inserting the end and moving the end in the vehicle width direction of the top ceiling inward in the vehicle width direction. Further, in the vehicle of Patent Document 1, at the time of collision of the vehicle, when the curtain airbag is deployed downward, the end of the top ceiling in the vehicle width direction is pressed inward in the vehicle width direction to be separated from the pillar trim. A gap is formed between the top ceiling and the pillar trim. Then, the curtain airbag is deployed downward from the gap toward the vehicle interior.

JP 2014-15087 A

  Since both the pillar trim and the top sealing are members exposed in the vehicle interior, it is desirable to minimize the gap generated at the joint between the pillar trim and the top ceiling in order to improve the appearance of the vehicle interior. However, in the structure of Patent Document 1, since the top sealing is held only by the upper end portion of the pillar trim, when the pillar trim and the top ceiling are attached, the position where the top sealing is properly held by the pillar trim and the seam as described above are determined. The mounting position of the pillar trim and the top ceiling must be adjusted in the vertical and vertical directions so that both of the positions where the gap becomes small are optimal at the same time, and there is a problem that the workability of the mounting operation is poor.

  In order to solve this problem, for example, it is conceivable to add a new part for determining a mounting position of the top ceiling with respect to the vehicle body. However, such addition of a new part is not preferable because it increases the cost and complicates the structure.

  Further, in the structure of Patent Document 1, in order to disengage the top sealing from the pillar trim, a direction different from the direction in which the curtain airbag is deployed is inward in the vehicle width direction with respect to the top sealing from the curtain airbag that deploys downward. It is necessary to apply a pressing force to Therefore, there is a problem that a force is not effectively applied to the top sealing from the curtain airbag, and the deployment force of the curtain airbag must be increased.

  The present invention has been made in view of the above circumstances, and has an object to provide an upper interior structure of a vehicle capable of improving the deployability of a curtain airbag while simplifying the structure. I do.

  In order to solve the above-described problems, the present invention provides a pillar trim that is attached to a pillar that defines an opening of a vehicle and covers the pillar from the passenger compartment side, and is provided above the pillar trim and covers a ceiling of the passenger compartment. In the upper interior structure of a vehicle comprising: a top sealing; a curtain airbag housed above the top sealing and deployable so as to cover a side wall of the cabin; and at least a part of the curtain airbag is located above the top sealing. A bracket that includes a holding portion that holds a sealing edge portion, which is an end of the top ceiling in the vehicle width direction, above the top sealing, and wherein the bracket is mounted on the vehicle more than the curtain airbag. It is provided on the outside in the width direction and extends downward from the curtain airbag toward the sealing edge portion. And a deployment guide section for guiding the curtain airbag toward the sealing edge portion when the curtain airbag is deployed (Claim 1). .

  According to the present invention, a bracket is provided separately from the pillar trim as an interior member of a vehicle, and a holding portion of the bracket holds an end portion (sealing edge portion) of the top ceiling in the vehicle width direction and thus the top ceiling. Has become. Therefore, it is possible to arrange the top ceiling at an appropriate holding position by adjusting the position of the holding section and the top ceiling, and it is possible to omit or reduce the operation of adjusting the relative position between the pillar trim and the top ceiling for this arrangement. In other words, the relative position between the pillar trim and the top ceiling only needs to be adjusted so that the gap therebetween is basically reduced. Therefore, the position adjustment of the pillar trim and the top ceiling can be easily performed, and the workability of these mounting operations can be improved. And since the holding part is provided at a position above the top ceiling and not exposed to the vehicle interior, it is not necessary to consider the appearance of the position adjustment between the holding part and the top ceiling. Mounting can be easily performed.

  Moreover, the bracket is a deployment guide portion for guiding the curtain airbag toward the top sealing when the curtain airbag is deployed. The deployment guide portion is provided outside the curtain airbag in the vehicle width direction, and the curtain airbag is viewed from the side of the vehicle. A deployment guide portion including a portion extending downward from the bag toward the top ceiling is provided. Therefore, the expansion guide portion suppresses the curtain airbag from spreading outward in the vehicle width direction, so that the curtain airbag can be quickly inflated toward the sealing edge portion of the top ceiling and deployed in the vehicle interior. Thus, early deployment of the curtain airbag can be realized without excessively increasing the deployment force of the curtain airbag in order to deploy the curtain airbag into the vehicle interior early.

  As described above, in the present invention, in addition to the function of holding the top sealing, the bracket also has a function of guiding the curtain airbag to the top sealing, compared to a case where members having these functions are individually provided. As a result, it is possible to improve the appearance and workability while simplifying the structure, and to promote the deployment of the curtain airbag.

  In the said structure, Preferably, the said bracket is arrange | positioned above the pillar trim so that it may oppose the upper edge of the said pillar trim (Claim 2).

  According to this configuration, a gap can be formed at an early stage between the sealing edge portion of the top ceiling and the pillar trim by the curtain airbag guided by the deployment guide portion, and the curtain airbag can be quickly removed from the cabin through the gap. Can be developed.

  In the above configuration, preferably, the holding portion holds the sealing edge by sandwiching the sealing edge with an upper edge of the pillar trim (claim 3).

  According to this configuration, the sealing edge portion and the top sealing can be more stably held.

  In the above configuration, preferably, the deployment guide portion includes a guide panel portion extending in a vertical direction and a vehicle front-rear direction, and a reinforcing portion provided on an outer surface of the guide panel portion in a vehicle width direction to reinforce the guide panel portion. (Claim 4).

  According to this configuration, the rigidity of the guide panel can be increased, and the guide panel and the deployment guide can more reliably prevent the curtain airbag from expanding outward in the vehicle width direction.

  In the above configuration, the reinforcing portion may be a rib that extends outward from the outer surface of the guide panel portion in the vehicle width direction and that is formed in a lattice shape when viewed from the side of the vehicle. 5).

  As described above, according to the present invention, it is possible to provide an upper interior structure of a vehicle capable of improving the deployability of a curtain airbag while simplifying the structure.

It is the schematic side view which looked at the side part of the vehicle concerning the embodiment of the present invention from the vehicle interior side. FIG. 2 is a schematic cross-sectional view taken along a line II-II in FIG. 1. It is the schematic which looked around the B pillar in the state where the top sealing was removed from the vehicle interior side. FIG. 4 is a diagram illustrating a state where a pillar trim is removed from the state illustrated in FIG. 3. FIG. 4 is a schematic perspective view for explaining a mounting structure of a bracket and a pillar inner panel, as viewed from the outside of the vehicle. FIG. 4 is a schematic perspective view for explaining a mounting structure of a bracket and a pillar trim, as viewed from the outside of the vehicle. It is the schematic perspective view which looked at the bracket from the vehicle interior side. It is the schematic perspective view which looked at the bracket from the vehicle outside. FIG. 8 is a schematic cross-sectional view taken along a plane passing through line IX-IX in FIG. 7. It is a figure showing a situation at the time of deployment of a curtain airbag, (a) is a figure before a top seal detaches, and (b) is a figure after a top seal detaches. It is the schematic which looked around C pillar from the vehicle interior side. FIG. 12 is a schematic cross-sectional view taken along a line XII-XII of FIG. 11. It is an outline perspective view showing the bracket concerning a 2nd embodiment. FIG. 14 is a schematic cross-sectional view taken along a line XIV-XIV in FIG. 13. It is an outline perspective view showing the bracket concerning a 3rd embodiment. FIG. 16 is a schematic cross-sectional view taken along a line XVI-XVI in FIG. 15.

  An embodiment of the present invention will be described in detail with reference to the drawings. Hereinafter, a case will be described in which the upper interior structure of the vehicle of the present invention is applied to a two-row seat 1 having a first-row seat 1a and a second-row seat 1b, as shown in FIG.

  FIG. 1 is a schematic side view of a side portion of a vehicle 1 as viewed from a passenger compartment side. FIG. 2 is a schematic cross-sectional view taken along the line II-II in FIG. In the following description, the vehicle longitudinal direction is simply referred to as the longitudinal direction. In each of the figures, “inside” represents an inside (inside) in the vehicle width direction, that is, the vehicle interior side, and “outside” represents an outside (outside), that is, the vehicle outside in the vehicle width direction.

  As shown in FIG. 1, an occupant elevating opening 1c for the first-row seat 1a and an occupant elevating opening 1d for the second-row seat 1b are formed on the side of the vehicle 1. I have. Side doors (not shown) are attached to the openings 1c and 1d, respectively. The vehicle 1 has A pillars 2, B pillars 3, and C pillars 4 in order from the front as pillars that partition the openings 1c, 1d. Further, the vehicle 1 has a roof panel 5 that forms an outer surface of a ceiling portion of a vehicle compartment. Each of the pillars 2, 3, and 4 is provided on each side of the vehicle 1 in the vehicle width direction. Each pillar and its surrounding structure are symmetrical in the vehicle width direction.

  As shown in FIG. 1 and FIG. 2, the vehicle 1 includes, as interior parts of the vehicle, a top ceiling 6 that covers a roof panel 5 from below and covers a ceiling of a passenger compartment, and each pillar 2, 3, and 4 from the passenger compartment side. And a covering pillar trim 20, 30, 40.

  The top sealing 6 is made of a soft material and can be deformed relatively easily. The top sealing 6 is formed, for example, by covering the surface of foamed urethane or the like with a nonwoven fabric. The pillar trims 20, 30, and 40 are formed of a hard synthetic resin (for example, polypropylene) and are not easily plastically deformed.

  The top ceiling 6 has a main body 6b formed in an upwardly convex arcuate shape in a vertical cross section, and an extension 6a extending substantially horizontally from an end of the main body 6b in the vehicle width direction. That is, at both outer ends in the vehicle width direction of the top ceiling 6, the extending portions 6a extending substantially horizontally are provided. The extension 6a is configured so that the angle between the extension 6a and the horizontal plane is 0 degrees or more and 20 degrees or less. That is, the term “substantially horizontal” as used in this specification refers to an angle between the horizontal plane and 0 ° or more and 20 ° or less. The extension 6a corresponds to a “sealing edge” in the claims.

  The vehicle 1 has a bracket for holding the top ceiling 6 as an interior member of the vehicle. In the present embodiment, the vehicle 1 has a B bracket 50 provided at the upper end of the B pillar 3 as a bracket.

  The vehicle 1 further includes a curtain airbag device 70. The curtain airbag device 70 is a device for protecting an occupant in the event of a vehicle collision. The curtain airbag device 70 includes a bag-shaped curtain airbag 71 and an inflator 72 that supplies inflation gas to the curtain airbag 71. The curtain airbag 71 corresponds to a “curtain airbag” in the claims.

  The curtain airbag 71 is stored in a folded state above the top ceiling 6, that is, in a space above the top ceiling. The curtain airbag 71 has a length extending from the A pillar 2 to the C pillar 4, and extends from the upper end of the A pillar 2 to the upper end of the C pillar 4 through the upper end of the B pillar 3.

  The inflator 72 operates when a side collision of the vehicle is detected by a side collision sensor (not shown) including, for example, a lateral G sensor, and instantaneously supplies inflation gas to the curtain airbag 71. The curtain airbag 71 is inflated by receiving the supply of the inflation gas, and is deployed below the top ceiling 6, that is, in the vehicle interior. The curtain airbag 71 is deployed so as to cover the cabin side wall including the inner surface of the side door, and prevents the driver from colliding with the cabin side wall.

  The structure around the pillar will be described. Hereinafter, the case where the pillar according to the claims is the B pillar 3 will be described, and the structure around the B pillar 3 will be described. Hereinafter, the outside in the vehicle width direction is appropriately referred to as the vehicle outside, and the inside in the vehicle width direction is appropriately referred to as the vehicle interior side.

  FIG. 3 is a schematic view of the periphery of the upper end of the B pillar 3 as viewed from the passenger compartment side. FIG. 3 is a view showing a state where the top sealing 6 has been removed. FIG. 4 is a view showing a state in which the pillar trim 30 and the curtain airbag 71 have been removed from the state shown in FIG. FIG. 5 is a diagram for explaining a mounting structure of the B pillar 3 and the bracket 50, and is a schematic diagram when these are viewed from the passenger compartment side. FIG. 6 is a diagram for explaining a mounting structure of the bracket 50 and the pillar trim 30, and is a schematic view of these as viewed from the outside of the vehicle.

  As shown in FIG. 2, the B pillar 3 has a pillar outer panel 3a arranged on the vehicle exterior side, and a pillar inner panel 3b arranged on the vehicle compartment side and defining a closed cross section by the pillar outer panel 3a. In the present embodiment, the pillar inner panel 3b of the B pillar 3 is formed integrally with a roof side rail 9 extending rearward from the upper end of the A pillar 2. The pillar inner panel 3b of the B pillar 3 extends downward from an intermediate portion of the roof side rail 9 in the front-rear direction. Hereinafter, the pillar inner panel 3b of the B pillar 3 is simply referred to as a pillar inner panel 3b.

(Pillar inner panel)
At the upper end of the pillar inner panel 3b, a bracket fixing hole 3c for fixing the bracket 50 is formed. In the present embodiment, two bracket fixing holes 3c are formed at substantially the same height at positions separated in the front-rear direction near the upper edge of the pillar inner panel 3b. One bracket fixing hole 3c is formed at a lower position. A pillar trim fixing hole 3d for fixing the pillar trim 30 is formed near the upper and lower center of the pillar inner panel 3b.

(Pillar trim)
As shown in FIG. 6 and the like, the pillar trim 30 has a shape swelling toward the passenger compartment, and has a substantially U-shaped horizontal cross section. The pillar trim 30 is fixed to the pillar inner panel 3a with the lower portion of the bracket 50 covered from the vehicle interior side.

  At the upper part of the side surface on the vehicle exterior side of the pillar trim 30, a protruding portion 31 protruding to the vehicle exterior side is provided. The protruding portion 31 is provided with two positioning protrusions 32, 32 protruding further to the outside of the vehicle at positions separated in the front-rear direction.

(bracket)
FIG. 7 is a schematic perspective view of the bracket 50 as viewed from the passenger compartment side. FIG. 8 is a schematic perspective view of the bracket 50 viewed from the outside of the vehicle. FIG. 9 is a schematic sectional view taken along line IX-IX of FIG.

  The bracket 50 is attached near the upper end of the pillar inner panel 3b. As described above, the lower portion of the bracket 50 is covered by the pillar trim 30, and the bracket 50 has a size extending from a position below the upper edge 33 of the pillar trim 30 to a position above the upper edge 33. ing.

  The bracket 50 includes a first upright wall portion 110 extending in the front-rear direction and the up-down direction, a bottom wall portion 120 extending from the lower edge 110 a of the first upright wall portion 110 to the vehicle outside, and a lower portion from the vehicle outside edge of the bottom wall portion 120. It has a second standing wall portion 130 extending, a plurality of first holding pieces 140 extending downward from the lower surface of the bottom wall portion 120, and two second holding pieces 150 extending downward from the lower surface of the bottom wall portion 120. The first holding piece 140 corresponds to a “holding part” in the claims.

  A portion 111 (hereinafter, referred to as a center panel portion 111) of the first standing wall portion 110 excluding both end portions in the front-rear direction extends vertically along a vertical plane substantially orthogonal to the vehicle width direction. That is, the first standing wall portion 110 has a central panel portion 111 extending along a vertical plane at a central portion in the front-rear direction.

  Both end portions in the front-rear direction of the first standing wall portion 110 are curved so as to be located on the vehicle outer side as the distance from the center panel portion 111 in the front-rear direction increases. At both end portions in the front-rear direction of the first standing wall portion 110, bracket fixed portions 112 protruding outward from the vehicle are provided. The bracket fixing portions 112 are respectively formed with bracket fixing holes 112a that penetrate the vehicle exterior surface and the vehicle interior surface. Clips 90 for fixing the bracket 50 to the pillar inner panel 3b are attached to the bracket fixing holes 112a.

  The height position of the lower edge of the center panel portion 111 is substantially constant in the front-rear direction. On the other hand, the lower edge of a portion of the first standing wall portion 110 extending forward and rearward from the central panel portion 111 is curved so as to be located further away from the central panel portion 111 in the front-rear direction. In other words, the lower edge 110a of the first standing wall portion 110 extends at a constant height in the central portion in the front-rear direction, and is curved so as to be located further away from the central portion in the front-rear direction. When viewed from above, it is formed in an arc shape such that a central portion in the front-rear direction swells upward. The outermost end portion of the first standing wall portion 110 in the front-rear direction extends in the vehicle width direction with the height of the lower edge thereof being substantially constant.

  As shown in FIG. 8, a rib 190 projecting outward from the surface of the first standing wall portion 110 is provided on the vehicle outside surface, and the first standing wall portion 110 is reinforced by the rib 190. . That is, the rigidity of the first standing wall portion 110 is increased by the rib 190, and the upper portion of the bracket 50 is a high rigidity portion having high rigidity by the rib 190 and the first standing wall portion 110. In the present embodiment, the rib 190 has a lattice shape when viewed from the side of the vehicle. Specifically, the rib 190 has a plurality of vertical ribs 191 arranged in the vertical direction and two horizontal ribs 192 extending in the front-rear direction and intersecting with each other and extending in the vertical direction. Most of the ribs 190 are provided on the outer surface of the central panel 111 of the first standing wall 110, and the rigidity of the central panel 111 is particularly enhanced. The first standing wall portion 110 corresponds to a “guide panel portion” in the claims, and the rib 190 corresponds to a “reinforcement portion” in the claims.

  The bottom wall portion 120 extends from the lower edge 110a of the first standing wall portion 110 (specifically, the lower edge of the first standing wall portion 110 excluding the outermost end portion in the front-rear direction) to the outside of the vehicle. And a second bottom wall portion 122 extending outward from the outer edge of the first bottom wall portion 121 in the vehicle width direction.

  The first bottom wall portion 121 is slanted outward and diagonally downward so as to be located lower as it goes to the outside of the vehicle. The second bottom wall portion 122 extends substantially horizontally to the outside of the vehicle from an outer edge, that is, a lower edge of the first bottom wall portion 121 in the vehicle width direction. Both end portions of the second bottom wall portion 122 in the front-rear direction are connected to outermost end portions of the first standing wall portion 110 in the front-rear direction.

  In the present embodiment, a part of the rib 190 is also located on the outer surface of the first bottom wall 121. However, the rib 190 is provided above the vertical center position of the first bottom wall portion 121, and the rigidity of the bottom wall portion 120 is suppressed lower than the rigidity of the first standing wall portion 121.

  The second standing wall 130 extends downward from the outer edge of the second bottom wall 122. The second standing wall portion 122 has a front second standing wall portion 131 provided on the front side and a rear second standing wall portion 132 provided on the rear side. The front second standing wall 131 extends below the rear second standing wall 132. Each of the front-side second standing wall portion 131 and the rear-side second standing wall portion 132 is formed with a positioning hole 130a that penetrates the vehicle exterior surface and the vehicle interior surface.

  The positioning hole 130a is a hole for defining a relative position between the bracket 50 and the pillar trim 30. Specifically, as shown in FIG. 6, the positioning protrusions 32 of the pillar trim 30 are inserted into the positioning holes 130a. The outer diameter of the positioning projection 32 and the inner diameter of the positioning hole 130a are set to substantially the same size. When the positioning projection 32 is inserted into the positioning hole 130a, the pillar trim 30 is locked by the bracket 50. Thus, the position of the pillar trim 30 with respect to the bracket 50 is defined.

  A bracket fixing hole 130b is formed in the front second standing wall portion 131 at a position below the positioning hole 130a. A clip 90 for fixing the bracket 50 to the pillar inner panel 3b is attached to the bracket fixing hole 130b, similarly to the bracket fixing hole 112a provided in the first standing wall portion 110.

  The first holding piece 140 is formed in a plate shape extending vertically and in the vehicle width direction, that is, a plate shape along a plane orthogonal to the vehicle front-rear direction. In the present embodiment, one bracket 50 is provided with four first holding pieces 140. The four first holding pieces 140 have the same structure as each other. These first holding pieces 140 are arranged parallel to each other at positions separated from each other in the front-back direction. In the present embodiment, all the four holding pieces 140 are provided in the region of the first standing wall portion 110 where the central panel portion 111 is formed in the front-rear direction, and are disposed below the central panel portion 111. .

  The first holding piece 140 extends over the first bottom wall 121 and the second bottom wall 122, and extends downward from the lower surfaces of the bottom walls 121 and 122. The first holding piece 140 is connected to a surface of the second upright wall portion 130 on the vehicle compartment side, and extends from this surface to the vehicle compartment side. The first holding piece 140 extends in the vehicle width direction to almost the same position as the end face of the central panel portion 111 on the passenger compartment side. The inner end of the first holding piece 140 in the vehicle width direction extends substantially straight in the vertical direction at substantially the same position (in the vehicle width direction) as the end surface of the central panel portion 111 on the passenger compartment side. The end face on the passenger compartment side and the end face on the passenger compartment side of the first holding piece 140 extend substantially continuously in the vertical direction.

  The height dimension of the portion of the first holding piece 140 outside the vehicle and extending downward from the second bottom wall portion 122 is substantially constant in the vehicle width direction, and the height position of the lower edge of this portion is It is substantially constant in the width direction. On the other hand, a portion of the first holding piece 140 that is on the vehicle interior side and extends downward from the first bottom wall portion 121 is inclined inward and obliquely upward such that the lower edge thereof is positioned higher toward the vehicle interior side. ing.

  One second holding piece 150 is provided at each of the front end and the rear end of the second bottom wall 122, and a portion on the front side of the first holding piece 140 on the front side, It is provided on a portion behind the first holding piece 140. The second holding piece 150 extends downward from the lower surface of the second bottom wall 122. Similarly to the first holding piece 140, the second holding piece 150 is formed in a plate shape extending in the vertical direction and the vehicle width direction, but the second holding piece 150 is curved in the vehicle width direction. Specifically, the front-side second holding piece 150 is curved so as to be located closer to the outside of the vehicle toward the front side, and the rear-side second holding piece 150 is curved such that it is located closer to the rear and closer to the outside of the vehicle. .

  As shown in FIGS. 2 and 5, when the bracket 50 and the pillar trim 30 are attached to the pillar inner panel 3b, each of the first holding pieces 140 and each of the second holding pieces 150 are connected to the upper edge 33 of the pillar trim 30. The upper edge 33 is opposed to the upper side. Specifically, a portion of the first holding piece 140 on the vehicle cabin side, which is inclined obliquely upward and inward, and the upper edge 33 of the pillar trim 30 are vertically opposed, and the second holding piece 150 extends over its entire length. The upper edge 33 of the pillar trim 30 is opposed to both end portions in the front-rear direction. A gap is vertically defined between each of the holding pieces 140 and 150 and the upper edge 33 of the pillar trim 30. The top sealing 6 is arranged in a gap between these and the upper edge 33 of the pillar trim 30 and the holding pieces 140 and 150, and is held between these holding pieces 140 and 150 and the upper edge 33 of the pillar trim 30. I have.

  The procedure for attaching the bracket 50 and the pillar trim 30 to the pillar inner panel 3b is as follows.

  First, the clip 90 is attached to the bracket 50. Specifically, the clip 90 is inserted into the bracket fixing holes 112a, 112a, and 130b of the bracket 50, respectively. The clip 90 is configured such that a portion on the distal end side (a portion disposed on the vehicle outside) is elastically deformable in the radial direction, and is inserted into the hole with the distal end portion reduced in diameter. By doing so, it is attached to each hole 112a, 112a, 140b.

  Next, the bracket 50 is attached to the pillar inner panel 3b via the clip 90. Specifically, a portion of the clip 90 that protrudes from the bracket 50 to the outside of the vehicle is inserted into the bracket fixing hole 3c of the pillar inner panel 3b. At this time, the clip 90 is fixed to the pillar inner panel 3b by reducing and increasing the diameter of the distal end portion of the clip 90 as described above. Thereby, the bracket 50 is fixed to the pillar inner panel 3b.

  In the present embodiment, the bracket 50 is fixed to the pillar inner panel 3b so as to be relatively immovable in the vehicle width direction. On the other hand, the bracket 50 is fixed to the pillar inner panel 3b in a state where the movement in the radial direction of the clip 90, that is, the side surface of the pillar inner panel 3b on the vehicle interior side is allowed to some extent. Specifically, the outer diameter of the portion of the clip 90 that is inserted into the bracket fixing holes 112a, 112a, and 130b is set smaller than the inner diameter of the bracket fixing holes 112a, 112a, and 130b. The clip 90 is attached to the bracket 50 so as to be relatively movable along a plane perpendicular to the axial direction of the clip 90. On the other hand, the outer diameter of a portion of the clip 90 to be inserted into the bracket fixing hole 3c and the inner diameter of the bracket fixing hole 3c are set to substantially the same dimensions, and the clip 90 is attached to the bracket fixing holes 112a, 112a. , 130b and the bracket fixing hole 3c, the axial movement thereof is regulated. As a result, the bracket 50 is attached to the clip 90 and the pillar inner panel 3b in a state where the relative movement in the vehicle width direction is restricted, but the relative movement is allowed along the side surface on the vehicle interior side.

  Next, the pillar trim 30 is attached to the pillar inner panel 3b while sandwiching both ends of the top ceiling 6 in the vehicle width direction between the pillar trim 30 and the bracket 50. At this time, as shown in FIG. 6 and as described above, the positioning protrusions 32, 32 of the pillar trim 30 are inserted into the positioning holes 130a, 130a of the bracket 50 to lock the pillar trim 30 to the bracket 50. . Then, a clip (not shown) provided on the pillar trim 40 is inserted into the pillar trim fixing hole 3d of the pillar inner panel 3b, and the pillar trim 30 is fixed to the pillar inner panel 3b.

  Thus, the pillar trim 30 is attached so as to cover the lower portion of the bracket 50 and the pillar inner panel 3b from the vehicle compartment side while the relative position between the bracket 50 and the pillar trim 30 is appropriately maintained. The top ceiling 6 is held above the pillar trim 30 by the pillar trim 30 and the bracket 50. More specifically, as described above, the top sealing 6 abuts on the upper edge 33 of the pillar trim 30 by the upper edge 33 of the pillar trim 30 and the lower edge of the first holding piece 140 and the lower edge of the second holding piece 150. It is kept in contact. Then, the entire bracket 50 is covered by the pillar trim 30 and the top ceiling 6 from the passenger compartment side.

  Here, as described above, the extending portions 6a are provided at both ends of the top ceiling 6 in the vehicle width direction. Thus, the extended portion 6 a of the top ceiling 6 is sandwiched between the pillar trim 30 and the bracket 50.

  Next, the positional relationship among the bracket 50 and the pillar trim 30, the top ceiling 6, and the curtain airbag device 70 attached to the pillar inner panel 3b as described above will be described.

  As shown in FIGS. 2 and 3, the curtain airbag 71 is disposed closer to the passenger compartment than the bracket 50. The curtain airbag 71 extends between the bracket 50 and the main body 6b of the top ceiling 6 in the front-rear direction. The bracket 50 and the pillar trim 30 sandwich a portion of the extension 6a outside the vehicle, and a part of the extension 6a extends from the upper edge 33 of the bracket 50 and the pillar trim 30 to the vehicle compartment side. The curtain airbag 71 is disposed above the portion of the extension 6a extending from the upper edge 33 of the bracket 50 and the pillar trim 30 toward the passenger compartment, that is, above the end of the extension 6a on the passenger compartment side. . The curtain airbag 71 is arranged at a position separated upward from the extension 6a, and a space is defined between the curtain airbag 71 and the extension 6a.

  The curtain airbag 71 is arranged so that at least a part thereof faces the first standing wall portion 110 and the vehicle width pope, and extends in the front-rear direction through the first standing wall portion 110 in the cabin. More specifically, the curtain airbag 71 extends in the front-rear direction along the surface of the central panel portion 111 of the first standing wall portion 110 on the passenger compartment side. In the present embodiment, in the vertical direction, the curtain airbag 71 is located in a range from a position below the upper edge of the first standing wall portion 110 to a position below the lower edge 110a of the first standing wall portion 110. ing. In the example of FIG. 2, in the vertical direction, the curtain airbag 71 moves the first sandwiching piece 140 from a position approximately one third of the height of the first standing wall 110 below the upper edge of the first standing wall 110. It is arranged in a region from the upper edge to a position about / below the maximum height of the first holding piece 140. In addition, about の of the curtain airbag 71 from above is disposed above the lower edge 110 a of the first standing wall 110.

  As shown in FIGS. 3 and 4, the inflator 72 has a cylindrical shape extending in a predetermined direction, and includes a gas supply unit 72 a for blowing gas toward the curtain airbag 71 at one end in the longitudinal direction. I have. The inflator 72 is disposed closer to the passenger compartment than the bracket 50 in the vehicle width direction, and is positioned rearward from a position facing the upper end of the rear end portion of the bracket 50 with the gas supply unit 72a facing forward. Extending. That is, the inflator 72 extends in the front-rear direction, and is mounted above the top ceiling 6 with the gas supply unit 72a at the front end. The gas supply portion 72a of the inflator 72 is disposed at a position overlapping the rear end portion of the bracket 50 when viewed from the side of the vehicle. The curtain airbag 71 extends forward from the gas supply section 72a, and then branches forward and backward at a branch section 71a.

  Further, as shown in FIG. 2 and the like, the curtain airbag 71 is disposed closer to the passenger compartment than the upper edge 33 of the pillar trim 30. Here, the pillar trim 30 has a shape that curves upward toward the passenger compartment, and the pillar trim 30 is configured such that its upper edge 33 is located closest to the passenger compartment. Therefore, the curtain airbag 71 is located closer to the passenger compartment than the pillar trim 30 in the vehicle width direction.

(Action, etc.)
FIGS. 10A and 10B are views showing a state when the curtain airbag 71 is deployed.

  When the vehicle collides, the gas is supplied to the curtain airbag 71 from the gas supply unit 72a of the inflator 72. The curtain airbag 71 tends to inflate downward, toward the passenger compartment, and toward the outside of the vehicle, as indicated by arrows. However, as described above, the curtain airbag 71 is disposed so as to face the first standing wall 110. Therefore, the expansion of the curtain airbag 71 to the outside of the vehicle is restricted by the first standing wall portion 110. That is, the curtain airbag 71 is guided to the lower side and the passenger compartment side by the first standing wall portion 110. In particular, in the present embodiment, the rigidity of the first standing wall portion 110 is increased. Therefore, the amount of displacement of the first standing wall portion 110 to the outside of the vehicle is suppressed to a small value, and the amount of expansion of the curtain airbag 71 to the outside of the vehicle is suppressed to a very small value. Furthermore, in this embodiment, since the curtain airbag 71 is arranged along the vertical panel and along the central panel 111 having the highest rigidity of the first standing wall 110, the curtain airbag 71 is provided. Of the vehicle to the outside of the vehicle is more reliably suppressed.

  The curtain airbag 71 tends to bulge out of the vehicle even below the first standing wall 110. However, the first holding pieces 140 are arranged between the lower edge 110a of the first standing wall portion 110 and the top ceiling 6 in the front-rear direction. Therefore, below the first standing wall portion 110, the inflation of the curtain airbag 71 to the outside of the vehicle is regulated by the first holding piece 140, and the curtain airbag 71 is moved downward and toward the passenger compartment by the first holding piece 140. Will be guided to.

  As described above, in the present embodiment, a part of the first holding piece 140 of the bracket 50 is configured to extend downward from the curtain airbag 71 toward the extension 6a of the top ceiling 6, and the first standing wall portion is provided. The first holding piece 140 and the first holding piece 140 guide the curtain airbag 71 downward, that is, toward the extension 6 a of the top ceiling 6, so that the lower edge of the first holding piece 140 of the bracket 50 is smaller than the lower edge. The upper part functions as a deployment guide part in the claims.

  Here, if the first holding piece 140 is not provided, a relatively large gap extending in the front-rear direction is formed between the first standing wall portion 110 and the pillar trim 30, and the curtain airbag 71 is formed in this gap. There is a possibility that the vehicle may enter and be caught by the upper edge 33 or the like of the pillar trim 30. On the other hand, in the present embodiment, the curtain airbag 71 entering the vehicle outside of the pillar trim 30 is regulated by the first holding piece 140, and the curtain airbag 71 is caught by the upper edge 33 of the pillar trim 30. Is suppressed.

  As shown by the broken line in FIG. 10A, the curtain airbag 71 inflated downward collides with the top sealing 6. Here, as described above, the curtain airbag 71 is disposed above the extension 6 a of the top ceiling 6. Therefore, the curtain airbag 71 mainly collides with the extension 6a. The extension 6a extends substantially horizontally. Therefore, the direction of the force applied to the extension 6a from the curtain airbag 71 that is inflated downward as shown by the arrow Y11 is substantially orthogonal to the extension 6a, and the curtain airbag 71 The inflation force of the bag 71 is effectively applied. Before the inflation, the curtain airbag 71 is disposed at a position separated upward from the extension 6a. Therefore, the downward inflation speed of the curtain airbag 71 at the time of collision with the extension 6a is relatively high. Therefore, the curtain airbag 71 collides vigorously with the extension 6a, and a large downward force is more reliably applied to the extension 6a. As shown in FIG. 10 (b), the extension 6 a is detached downward from between the bracket 50 and the pillar trim 30 by receiving a downward force from the curtain airbag 71. At this time, as described above, a large downward force is applied to the extension portion 6a, so that the extension portion 6a is quickly separated from between the bracket 50 and the pillar trim 30.

  Further, the portion of the curtain airbag 71 connected to the gas supply unit 72a has a large inflation force due to the high pressure gas being applied first. On the other hand, in the present embodiment, since the gas supply unit 72a and the bracket 50 face each other, the inflation force of the part of the curtain airbag 71 that faces the bracket 50 increases. Thus, in the present embodiment, a large force can be more reliably applied from the curtain airbag 71 to the portion of the top sealing 6 held by the bracket 50, that is, the extension 6a, and the top sealing 6 It can be detached from the bracket 50 and the pillar trim 30 even earlier.

  When the extension 6a separates from between the bracket 50 and the pillar trim 30, the curtain airbag 71 enters the vehicle interior from the gap between the extension 6a and the pillar trim 30, and deploys along the side wall of the vehicle. . As described above, the curtain airbag 71 is disposed closer to the passenger compartment than the pillar trim 30 in the vehicle width direction. Therefore, the curtain airbag 71 quickly deploys in a region below the upper edge 33 of the pillar trim 30 without interfering with the pillar trim 30.

  As described above, in the present embodiment, the top sealing 6 is held by the first holding pieces 140 that are arranged above the top sealing 6 and are not exposed to the vehicle compartment. Therefore, it is possible to arrange the top sealing 6 at an appropriate holding position by adjusting the position of the bracket 50 including the first holding piece 140 and the top sealing 6, and for this arrangement, the relative position between the pillar trim 30 and the top sealing 6 Can be omitted or reduced. That is, the relative position between the pillar trim 30 and the top sealing 6 may be basically adjusted so as to reduce the gap between them, and an appropriate arrangement of the top sealing 6 at the holding position and the gap can be adjusted. It is no longer necessary to realize both the arrangement for reduction and the alignment of the pillar trim 30 and the top ceiling 6 only. Therefore, the position adjustment between the pillar trim 30 and the top ceiling 6 can be easily performed, and the workability of these mounting operations can be improved. The first holding piece 140 is provided at a position above the top ceiling 6 and not exposed to the vehicle interior, and the bracket 50 is covered from the vehicle interior side by the top ceiling 6 and the pillar trim 30 so that the bracket 50 is By not being exposed to the vehicle interior, the necessity of considering the appearance of the position adjustment between the first holding piece 140 and the bracket 50 and the top ceiling 6 can be reduced, and the mounting thereof can be easily performed.

  Moreover, the first holding piece 140 provided on the bracket 50 is configured to extend downward from the curtain airbag 71 toward the top sealing 6 when viewed from the side of the vehicle outside the curtain airbag 71. . In addition, a first standing wall portion 110 provided on the bracket 50 is disposed on the vehicle outside of the curtain airbag 71 so as to face the same. Therefore, as described above, it is possible to suppress the curtain airbag 71 from inflating to the outside of the vehicle, and the curtain airbag 71 can be quickly deployed to the lower side and the passenger compartment side, that is, the top sealing 6 side. Since both the function of holding the top sealing 6 and the function of guiding the curtain airbag 71 to the top sealing 6 are provided on the bracket 50 in this way, compared to a case where members having these functions are individually provided. Thus, the structure can be simplified.

  In the present embodiment, since the top ceiling 6 is sandwiched between the bracket 50 and the upper edge 33 of the pillar trim 30, the top ceiling 50 can be held more stably.

  In the present embodiment, the first standing wall portion 110 of the bracket 50 disposed on the vehicle outside of the curtain airbag 71 is reinforced by the rib 190. Therefore, the deformation of the first standing wall portion 110 to the outside of the vehicle can be suppressed, and the expansion of the curtain airbag 71 to the outside of the vehicle can be more reliably suppressed by the first standing wall portion 110.

(Modification)
In the above-described embodiment, the curtain airbag 71 is disposed in a region that straddles the first standing wall portion 110 and the first holding piece 140, and extends downward from the curtain airbag 71 toward the top ceiling 6 when viewed from the side of the vehicle. Although the case where the extending portion is the lower portion of the first holding piece 140 has been described, the curtain airbag 71 is disposed above the first holding piece 140, and the first holding piece 140 is viewed from the side of the vehicle. The whole or the entire first holding piece 140 and the lower part of the first standing wall 110 may be configured to be located below the curtain airbag 71.

  The reinforcing portion for reinforcing the first standing wall 110 is not limited to the rib 190.

  The upper interior structure of the vehicle may be applied around pillars other than the B pillar 3. FIG. 11 is a schematic view of a peripheral portion of the C pillar 4 when the interior structure is applied around the C pillar 4 as viewed from the passenger compartment side. In FIG. 11, the top ceiling 6 is omitted. FIG. 12 is a schematic cross-sectional view taken along a line XII-XII in FIG.

  11 and 12, a bracket 250 (hereinafter, referred to as C bracket 250) is attached to a pillar inner panel 4b of the C pillar 4 (hereinafter, referred to as C pillar inner panel 4b). Similar to the bracket 50 provided on the B pillar 3, the C bracket 250 includes a first upright wall portion 251 extending in the vertical direction, and a bottom wall portion 252 extending from the lower edge 251 a of the first upright wall portion 251 to the vehicle outside. , A plurality of first holding pieces 253 extending downward from the lower surface of the bottom wall portion 252. These first holding pieces 253 are arranged in parallel to each other in the front-rear direction similarly to the bracket 50 described above. In this example also, the upper edge 233 of the pillar trim 40, which covers the C pillar 4 from the vehicle interior side, and the bracket 250 sandwich a portion of the extension 6a of the top ceiling 6 on the outside of the vehicle, and the extension 6a The curtain airbag 71 is housed above the part on the vehicle cabin side, so that the top sealing 6 can be easily attached to the vehicle, and the curtain airbag 71 can be quickly deployed in the vehicle cabin. Can be. In addition, since the curtain airbag 71 is disposed at a position separated upward from the extension 6a, a strong force is applied to the extension 6a so that the curtain airbag 71 is deployed in the vehicle compartment earlier. Can be.

  In the above-described embodiment, a case has been described in which the lower edge 110a of the first standing wall portion 110 of the bracket 50 is configured so that the center in the front-rear direction extends along a line that bulges upward when viewed from the side of the vehicle. However, instead of this, a bracket 250 as shown in FIGS. 13 and 14 (a schematic cross-sectional view taken along a plane passing through line XIV-XIV in FIG. 13) may be used.

  Specifically, in the bracket 350 according to the second embodiment shown in FIGS. 13 and 14, the height of the lower edge 310 a of the first standing wall portion 310 is constant throughout the bracket 350, and the height of the first standing wall portion 310 The entire bottom wall 320 extending outward from the lower edge 310a extends substantially horizontally outward from the lower edge 310a of the first standing wall 310. The first holding piece 340 extends downward from the lower surface of the bottom wall 320 extending substantially horizontally, and the height of the first holding piece 340 is substantially constant in the vehicle width direction. 13 and 14, members having the same structure as the bracket 50 shown in FIG. 7 and the like are denoted by the same reference numerals as in FIG. 7 and the like.

  Alternatively, a bracket 450 as shown in FIGS. 15 and 16 (a schematic cross-sectional view taken along the line XVI-XVI in FIG. 15) may be used. Specifically, the bracket 450 according to the third embodiment shown in FIGS. 15 and 16 has a bottom including a first bottom wall 421 and a second bottom wall 422, similarly to the bracket 50 shown in FIG. It has a wall 420 and a first standing wall 110. On the other hand, the bracket 450 according to the third embodiment has a plate-like shape that extends downward from the first bottom wall 421 and has a relatively large width in the front-rear direction instead of the first holding piece 140 illustrated in FIG. It has one extension piece 440a and a plate-like second extension piece 440b extending substantially horizontally from the lower edge of the first extension piece 440a to the outside of the vehicle. The first extension piece 440a and the second extension piece 440b can be formed by extruding a part of the first bottom wall 121 and the second bottom wall 122 of the bracket 50 according to the first embodiment. According to the bracket 450 according to the third embodiment, the extension pieces 440a and 440b have the same function as the first holding piece 140 (the top sealing 6 is held between the upper holding edge 33 of the pillar trim 30). A portion having a function, that is, a function of restricting the curtain airbag 71 from expanding to the outside of the vehicle, under the first standing wall portion 451 can be easily formed. In addition, since portions of the bottom wall portions 421 and 422 facing the first extension piece 440a and the second extension piece 440b are extracted, the weight of the bracket 450 is reduced. 13 to 16, members having the same structure as the bracket 50 shown in FIG. 7 and the like are denoted by the same reference numerals as in FIG. 7 and the like.

3 B pillar (pillar)
3b Pillar inner panel 6 Top sealing 6a Extension (sealing edge)
Reference Signs List 30 pillar trim 50 bracket 70 airbag device 71 curtain airbag 72 inflator 72a gas supply unit 110 first standing wall portion (guide panel portion, deployment guide portion)
140 First holding piece (holding section, deployment guide section)
190 rib (reinforcement)

Claims (5)

A vehicle upper interior structure comprising: a pillar trim that is attached to a pillar that defines an opening of a vehicle and covers the pillar from the vehicle interior side; and a top ceiling that is provided above the pillar trim and covers a ceiling of the vehicle interior. ,
A curtain airbag that is housed above the top ceiling and can be deployed to cover the side wall of the cabin,
A bracket including a holding portion that holds a sealing edge that is an end of the top ceiling in the vehicle width direction above the top ceiling,
The bracket includes a portion that is provided outside the curtain airbag in the vehicle width direction and extends downward from the curtain airbag toward the sealing edge portion. An upper interior structure for a vehicle, comprising a deployment guide portion for guiding toward a sealing edge portion. The upper interior structure of a vehicle according to claim 1,
The upper interior structure of a vehicle, wherein the holding portion is disposed above the pillar trim so as to face an upper edge of the pillar trim. The upper interior structure of a vehicle according to claim 2,
The upper interior structure of a vehicle, wherein the bracket holds the sealing edge by sandwiching the sealing edge with an upper edge of the pillar trim. The upper interior structure of a vehicle according to any one of claims 1 to 3,
The deployment guide portion includes a guide panel portion extending in the up-down direction and the vehicle front-rear direction, and a reinforcing portion provided on an outer surface of the guide panel portion in the vehicle width direction to reinforce the guide panel portion. The upper interior structure of the vehicle. The upper interior structure of a vehicle according to claim 4,
An upper portion of the vehicle, wherein the reinforcing portion extends outward in the vehicle width direction from an outer surface in the vehicle width direction of the guide panel portion, and has ribs formed in a lattice shape when viewed from the side of the vehicle. Interior structure.

Images