JP7321136B2 - vehicle door trim - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle door trim having a structure for absorbing an impact load in the event of a side collision.

A door trim body is provided on the cabin side of the door of the vehicle. When an impact load is applied to the door trim body from the side due to a side collision or the like, the door trim body deforms to absorb the impact load. Japanese Unexamined Patent Application Publication No. 2002-100000 discloses a conventional technique relating to a door trim body having such a shock absorbing structure.

The door trim body disclosed in Patent Document 1 has a bulging portion that bulges toward the passenger compartment side of the door trim body. A panel with switches for power windows and the like and an armrest on which the passenger rests his or her elbows are attached to the upper surface of the bulging portion.

The upper surface of the bulging portion has an opening that penetrates in the vertical direction and is closed when the armrest is attached. The opening has a shape whose longitudinal direction is the vehicle front-rear direction. A plurality of substantially plate-shaped bridging portions span the opening in the vehicle width direction from the edge of the opening on the vehicle interior side to the edge on the vehicle exterior side. Each bridging portion is configured integrally with the door trim body. When an impact load is applied to the door trim body from the side due to a side collision or the like, the bridging portion deforms to absorb the impact load.

JP-A-2010-126050

The bridging portion has a groove formed in the center in the bridging direction, and is bent in an inverted V shape with this groove as a base point. Therefore, when a load is applied to the bulging portion toward the outside of the vehicle in the event of a side collision, the bridging portion is further bent with the groove as a base point. The bent bridging portion contacts the back surface of the armrest and pushes up the armrest. It is possible to secure a stroke amount for displacing the pushed-up armrest from the door trim main body and displacing the bulging portion outward from the vehicle.

On the other hand, the bridging portion has a shape that is easy to bend, so the ability to absorb the impact load is low, and there is room for improvement.

SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle door panel having a high ability to absorb an impact load at the time of a side collision.

According to the first aspect of the invention, there is provided a vehicle door trim including a door trim body having a bulging portion that bulges inward in the vehicle width direction, and an armrest fixed to the upper surface of the bulging portion,
the upper surface of the bulging portion has a long opening in the vehicle front-rear direction that is blocked by the armrest;
A bridging portion is bridging and integrated in the vehicle width direction from the edge of the opening on the vehicle interior side to the edge on the vehicle exterior side,
A rib extending in the vehicle width direction is provided on the lower surface of the bridging portion,
The vehicle door trim is characterized in that the bridging portion and the rib are configured to bend as a whole when a load is applied to the door trim body in the vehicle width direction.

As described in claim 2, preferably, the width of the bridging portion is set so as to narrow from one end on the vehicle exterior side or the vehicle interior side toward the other end.

Preferably, the width of the other end portion is set substantially equal to the thickness of the rib.

As described in claim 4, preferably, the bridging portion and the back surface of the armrest do not contact each other and have a gap therebetween.

As described in claim 5, preferably, the edge of the exterior side of the opening of the door trim body has a plate-like fixing portion for fixing the armrest to the door trim body,
The armrest has a fixed portion that can be fixed to the fixed portion of the door trim body,
The fixed portion of the door trim body has a through hole penetrating the fixed portion in the vehicle width direction,
When the opening of the door trim body is viewed from above, a pair of the bridging portions are provided in the longitudinal direction of the vehicle so as to sandwich the center line of the through hole with a gap therebetween.

Preferably, the through-hole is positioned substantially at the center in the vehicle front-rear direction in the edge of the opening on the side of the passenger compartment.

In claim 1, the opening blocked by the armrest is bridged and integrated with the bridging portion in the vehicle width direction from the edge on the side of the vehicle compartment to the edge on the outside of the vehicle. A rib extending in the vehicle width direction is provided on the lower surface of the bridging portion. The bridging portion and the rib are configured to bend as a whole when a load is applied to the door trim body in the vehicle width direction.

In other words, the bridging portion and the rib are uniformly configured without including fragile portions such as grooves and notches. Compared to a structure in which a fragile portion is provided in a portion of the bridging portion and the bridging portion is bent from the fragile portion as a base point, the gradual bending deformation can reliably absorb the impact even at the initial stage of the collision. Therefore, the vehicle door trim has a high ability to absorb the impact load in the event of a side collision. In addition, it is possible to exhibit sufficient impact absorption performance while maintaining appropriate rigidity against static load from the upper part of the armrest and static load from the inside of the room.

In claim 2, the width of the bridging portion is set so as to narrow from one end on the outside of the vehicle or on the side of the vehicle compartment toward the other end. As compared with the case where the width of the bridging portion is constant, the bridging portion is more likely to bend. Excessive increase or decrease of the impact load can be suppressed. Furthermore, the narrower width contributes to weight reduction of the door trim body.

In claim 3, the width of the other narrow end portion is set substantially equal to the thickness of the rib. Since the bridging portion is more likely to bend in the longitudinal direction of the vehicle, it is less likely that the bridging portion will come into contact with the armrest positioned above the bridging portion. The impact absorption capacity of the door trim is stabilized.

In claim 4, the bridging portion and the rear surface of the armrest have a gap therebetween without contacting each other. Therefore, when the bridging portion is deformed together with the door trim main body in the event of a side collision, the deformed bridging portion is less likely to come into contact with the armrest. That is, the deformation of the door trim main body is less likely to affect the armrest, and the door trim main body and the armrest are more likely to reliably exhibit their impact absorbing capabilities.

In claim 5, the edge of the opening of the door trim body on the exterior side has a plate-like fixing portion for fixing the armrest to the door trim body. When the opening of the door trim body is viewed from above, a pair of bridging portions are provided in the longitudinal direction of the vehicle so as to sandwich the center line of the through hole of the fixing portion with a gap therebetween. That is, a pair of bridging portions, which are elements capable of absorbing impact, are arranged in the vicinity of the fixing portion of the door trim body. Therefore, the armrest can be stably held with respect to the door trim main body, and it is possible to obtain a stable behavior with little rattling at the initial stage of a collision and a continuous impact.

In claim 6, the through-hole is positioned substantially at the center in the vehicle front-rear direction in the edge of the opening on the passenger compartment side. That is, the fixing portion of the door trim body is arranged in the center without being biased in any of the longitudinal directions of the vehicle. It is possible to stably hold the armrest, reduce rattling at the initial stage of collision, and obtain stable behavior against continuous impact.

1A is a perspective view of a vehicle door trim according to Embodiment 1. FIG. FIG. 1B is an exploded perspective view of the vehicle door trim shown in FIG. 1A. FIG. 2A is an enlarged view of the second opening of the door trim body shown in FIG. 1B. 2B is a view in the direction of arrow 2B in FIG. 2A. FIG. 3A is an enlarged view 3A of FIG. 2A. 3B is a view in the direction of arrow 3B in FIG. 3A. FIG. 4 is a cross-sectional view along line 4-4 of FIG. 1A. FIG. 5 is a diagram for explaining a pair of bridging sections viewed from below. FIG. 6 is a graph showing the impact absorption characteristics of a vehicle door trim compared to the prior art. FIG. 7 is a perspective view of the vicinity of the bridge portion of the vehicle door trim according to the second embodiment.

An embodiment of the present invention will be described below with reference to the accompanying drawings. In the description, left and right refer to left and right with respect to the occupant of the vehicle, and front and rear refer to front and rear with respect to the traveling direction of the vehicle. In the figure, Fr indicates the front, Rr the rear, In the inside in the vehicle width direction as viewed from the passenger, Ou the outside in the vehicle width direction as seen from the passenger, Up the top, and Dn the bottom.

<Example 1>
FIG. 1A shows a vehicle door trim 10 according to a first embodiment. The vehicle door trim 10 is provided on a surface of a driver's seat door panel (not shown) on the inner side in the vehicle width direction (hereinafter referred to as the vehicle interior side). A vehicle door trim 10 includes a door trim body 20 , an armrest 30 on which a vehicle occupant rests his/her elbow, and a panel 11 arranged in front of the armrest 30 .

See FIG. 1B. The door trim body 20 has a bulging portion 22 that bulges toward the passenger compartment from a surface 21 in which a door handle opening 21a is formed. A first opening 24 and a second opening 40 (opening) are formed in the upper surface 23 of the bulging portion 22 so as to penetrate vertically. The first opening 24 is closed by the panel 11 . The second opening 40 is closed by the armrest 30 . The longitudinal direction of the first opening 24 and the second opening 40 is the vehicle front-rear direction.

A pull pocket 12 is attached to the panel 11 so that an occupant puts his or her hand in closing the door. The panel 11 is formed with a plurality of holes 11a for exposing various switches such as power windows.

Please refer to FIGS. 2A and 2B. Between the first opening 24 and the second opening 40 is provided a front fixing portion 25 capable of fixing the front portion of the armrest 30 (see FIG. 1B). The front fixing portion 25 has an L-shaped plate shape. The front fixing portion 25 is configured integrally with the door trim body 20 and can be said to be a portion that partitions the first opening 24 and the second opening 40 . The front fixing portion 25 has a front through hole 25a through which a fastening member (not shown) such as a screw can pass in the vehicle width direction.

A rear fixing portion 26 capable of fixing the rear portion of the armrest 30 (see FIG. 1) is provided behind the second opening 40 . The rear fixing portion 26 has a plate shape extending in the vertical direction. The rear fixing portion 26 has a rear through hole 26a through which a fastening member (not shown) such as a screw can pass in the vehicle width direction.

The second opening 40 includes an edge 41 extending in the longitudinal direction of the vehicle on the side of the passenger compartment, an edge 42 on the outer side in the vehicle width direction (hereinafter referred to as an outer side of the vehicle), and a front edge 43 that is the rear end of the front fixing portion 25. , and a rear edge 44 that is the front end of the rear fixing portion 26 .

A fixing portion 45 for fixing the armrest 30 is provided on the outer edge 42 of the second opening 40 . The fixed portion 45 has a plate-like plate-like portion 46 extending in the vertical direction and a through hole 46a passing through the plate-like portion 46 in the vehicle width direction.

The dimension L1 from the front edge 43 of the second opening 40 to the center line CL of the through hole 46a and the dimension L2 from the center line CL to the rear edge 44 of the second opening 40 are substantially equal (L1≈L2 ). That is, the through-hole 46a is positioned substantially at the center in the vehicle front-rear direction in the edge 41 of the second opening 40 on the passenger compartment side.

A pair of bridging portions 50 and 60 span the second opening 40 in the vehicle width direction from an edge 41 of the second opening 40 on the vehicle interior side to an edge 42 on the vehicle outer side. Each bridging portion 50 , 60 is configured integrally with the door trim body 20 . Of the pair of bridging portions 50 and 60, the one on the front side of the center line CL is called a front bridging portion 50, and the one on the rear side of the center line CL is a rear bridging portion 60. A single bridging portion may be provided instead of the pair of bridging portions 50 and 60 .

A second bridging portion 55 is provided in the vicinity of the rear edge 44 of the second opening 40 on the rear side of the rear bridging portion 60 .

When the second opening 40 of the door trim body 20 is viewed from above (see FIG. 2B), the front bridging portion 50 and the rear bridging portion 60 are positioned near the center line CL of the through hole 46a. Specifically, the front bridging portion 50 and the rear bridging portion 60 are positioned so as to sandwich the center line CL of the through hole 46a with a gap therebetween.

The edge 41 on the passenger compartment side has a plurality of (for example, four) locking holes 48 that penetrate in the vehicle width direction and can be locked with the armrest 30 . Two locking holes 48 are arranged on the front side and two on the rear side with respect to the center line CL.

The rim 42 on the vehicle outer side bulges out toward the vehicle outer side. Of the edge 42 on the vehicle outer side, the outermost portion 42a is positioned substantially at the center in the longitudinal direction of the vehicle. The edge 42 on the outer side of the vehicle has a plurality of (for example, four) locking holes 49 penetrating in the vertical direction and capable of locking with the armrest 30 . Two locking holes 49 are arranged on the front side and two on the rear side with respect to the center line CL.

Please refer to FIGS. 3A and 4 . At a position in the second opening 40 where the front bridging portion 50 is provided, the vehicle-exterior edge 42 is set higher than the vehicle interior-side edge 41 . The front bridging portion 50 has a substantially L shape as a whole when viewed along the vehicle front-rear direction.

The front bridging portion 50 includes a first plate-shaped portion 51 extending upward from an edge 41 on the vehicle interior side, and an upward slope from an upper end 51a of the first plate-shaped portion 51 to an edge 42 on the vehicle exterior side. A plate-shaped second plate-shaped portion 52 extending in a shape is integrally configured.

The thickness T1 of the bridging portion is constant from the first plate-like portion 51 to the second plate-like portion 52 .

Please refer to FIGS. 3A and 3B. The dimension between the front end surface 52a and the rear end surface 52b of the second plate-like portion 52 is defined as the width W2 of the second plate-like portion 52. As shown in FIG. The width W2 of the second plate-shaped portion 52 is set in a tapered shape so as to become narrower from the vehicle-exterior end 54 of the second plate-shaped portion 52 toward the vehicle-interior-side end 53 .

The width of the end portion 53 of the front bridging portion 50 on the passenger compartment side is defined as a width W2a. The dimension between the front end surface 51a and the rear end surface 51b of the first plate-like portion 51 is defined as the width W1 of the first plate-like portion 51. As shown in FIG. The width W2a of the end portion 53 on the cabin side is substantially equal to the width W1 of the first plate-like portion 51 (W2a≈W1). The width W1 of the first plate-like portion 51 is substantially constant.

Please refer to FIGS. A rib 70 extending in the vehicle width direction is provided on the lower surface 50 a of the front bridge portion 50 . The rib 70 has a substantially triangular shape when viewed along the vehicle front-rear direction (see FIG. 4), and is formed integrally with the first plate-like portion 51 and the second plate-like portion 52 . The cabin-side end portion 71 of the rib 70 extends below the cabin-side edge 41 .

The dimension from the lower surface 50a of the front bridging portion 50 to the lower end surface 70a of the rib 70 is defined as the height H1 of the rib 70. As shown in FIG. The height H1 of the rib 70 is set low from the vehicle interior side toward the vehicle exterior side. A vehicle-exterior end 72 of the rib 70 is located closer to the vehicle interior than the vehicle-exterior edge 42 . That is, the rib 70 does not span the second opening 40 .

See FIG. 3B. The dimension between the front surface 70b of the rib 70 and the rear surface 70c of the rib 70 as viewed along the vehicle width direction is defined as the thickness T2 of the rib 70. As shown in FIG. A thickness T2 of the rib 70 is constant.

The width W2a of the end portion 53 of the second plate-like portion 52 on the passenger compartment side is set to be slightly longer than the thickness T2 of the rib 70 . Note that the width W2a closest to the passenger compartment may be set equal to the thickness T2 of the rib 70 .

Please refer to FIG. The armrest 30 is composed of a base material 31 , a cushioning material 32 provided in conformity with the base material 31 , and a skin 33 covering the base material 31 and the cushioning material 32 . The base material 31 has a substantially L shape in a cross-sectional view along the vehicle front-rear direction. Specifically, the base member 31 includes a wall portion 34 whose lower end is supported by the bulging portion 22 and extends upward, and a second opening 40 that spreads outward from the upper end of the wall portion 34 and covers the second opening 40 . and a fixed portion 36 positioned below the top plate portion 35 and capable of being fixed to the fixing portion 45 of the door trim body 20 are integrally configured.

The fixed portion 36 of the armrest 30 is fixed to the fixed portion 45 of the door trim body 20 by screwing, for example. The fixed portion 36 has a fastening hole 36a having an internal thread formed on the inner peripheral surface thereof. The fastening hole 36a extends in the vehicle width direction and can be screwed with the shaft portion 37b of the screw 37 . A fixing portion 45 of the door trim body 20 is sandwiched between the head portion 37a of the screw 37 and the end surface of the fixed portion 36 .

Note that a fixing method using heat caulking may be employed instead of screw fastening. Specifically, a portion to be fixed (not shown) of the armrest 30 is passed through the through hole 46a of the door trim body 20, and the tip of the portion to be fixed is heated and deformed so that it becomes larger than the diameter of the through hole 46a. to fix the fixed portion to the fixing portion 45 .

The front bridging portion 50 and the back surface 30a of the armrest 30 (the surface on the side opposite to the skin 33) do not contact each other and have a gap C therebetween. Specifically, the wall portion 34 of the base material 31 of the armrest 30 and the surface 51d of the first plate-like portion 51 of the bridging portion on the passenger compartment side do not contact each other and have a gap C1 therebetween. ing. The top plate portion 35 of the base material 31 of the armrest 30 and the upper surface 52c of the second plate-like portion 52 of the bridging portion do not contact each other and have a gap C2 therebetween.

Please refer to FIG. The configuration of the rear bridging portion 60 is the same as the configuration of the front bridging portion 50 . That is, the rear bridging portion 60 has a first plate-like portion 61 and a second plate-like portion 62 . The width of the second plate-shaped portion 62 is set in a tapered shape so that it becomes narrower from an end portion 64 on the vehicle exterior side of the second plate-shaped portion 52 toward an end portion 63 on the vehicle interior side. The configuration of the ribs 80 provided on the lower surface 60 a of the rear bridging portion 60 is the same as the configuration of the ribs 70 . A detailed description of the ribs 80 is omitted.

The effect of Example 1 will be described.

Please refer to FIGS. 3A, 3B and 4. FIG. A pair of bridging portions 50 and 60 span the second opening 40 in the vehicle width direction from an edge 41 of the second opening 40 on the vehicle interior side to an edge 42 on the vehicle outer side. A rib 70 extending in the vehicle width direction is provided on the lower surface 50 a of the front bridge portion 50 . The front bridging portion 50 and the rib 70, and the front bridging portion 50 and the rib 70 are configured to bend as a whole when a load is applied to the door trim body 20 in the vehicle width direction.

In other words, the front bridging portion 50 and the ribs 70 are uniformly configured without including fragile portions such as grooves and notches. Compared to a structure in which a fragile portion is provided in a portion of the bridging portion and the bridging portion is bent from the fragile portion as a base point, the gradual bending deformation can reliably absorb the impact even at the initial stage of the collision. Therefore, the vehicle door trim has a high ability to absorb the impact load at the time of the side collision. In addition, it is possible to exhibit sufficient impact absorption performance while maintaining appropriate rigidity against static load from the upper part of the armrest and static load from the inside of the room.

FIG. 6 is a graph showing the impact absorption characteristics of the vehicle door trim 10. As shown in FIG. This graph is drawn based on the results of analysis conducted by the inventors of the present invention. A solid line in the graph indicates the impact absorption characteristics of the vehicle door trim 10 of the first embodiment. A dashed line indicates the impact absorption characteristics of a vehicle door trim of a comparative example (a configuration in which a fragile portion (groove) is added to the bridging portion of Example 1). When compared with Example 1 and Comparative Example, the vehicle door trim 10 of Example 1 absorbs a larger load.

In addition, the width W2 of the second plate-shaped portion 52 is set in a tapered shape so as to become narrower from the vehicle-exterior end 54 of the second plate-shaped portion 52 toward the vehicle-interior-side end 53 . ing. The front bridging portion 50 is more likely to bend than a bridging portion having a constant width. Excessive increase or decrease of the impact load can be suppressed. Furthermore, the narrower width contributes to weight reduction of the door trim body 20 .

In addition, the width W<b>2 a of the second plate-like portion 52 closest to the passenger compartment is set slightly longer than the thickness T<b>2 of the rib 70 . That is, the width W2a of the second plate-like portion 52 closest to the passenger compartment side is set to be narrower until it becomes substantially equal to the thickness T2 of the rib 70. As shown in FIG. Therefore, the front bridging portion 50 tends to bend in the vehicle front-rear direction. Even if the front bridging portion 50 is deformed, it is less likely to come into contact with the armrest 30 located above the front bridging portion 50 . The shock absorbing ability of the door trim 10 is stabilized.

In addition, the front bridging portion 50 and the back surface 30a of the armrest 30 have a gap C therebetween without contacting each other. Therefore, when the front bridging portion 50 is deformed together with the door trim body 20 in the event of a side collision, the deformed front bridging portion 50 is less likely to come into contact with the armrest 30 . That is, the deformation of the door trim main body 20 is less likely to affect the armrest 30, and the door trim main body 20 and the armrest 30 are more likely to reliably exhibit their shock absorbing capabilities.

The effects of the front bridging portion 50 and the rib 70 are also exhibited by the rear bridging portion 60 and the rib 80 .

See FIG. 2B. In addition, when the second opening 40 of the door trim body 20 is viewed from above, the pair of bridging portions 50 and 60 are positioned so as to sandwich the center line CL of the through hole 46a with a gap therebetween. That is, in the vicinity of the fixed portion 45 of the door trim body 20, a pair of bridging portions 50 and 60, which are elements capable of absorbing impact, are arranged. Therefore, the armrest 30 can be stably held with respect to the door trim body 20, and it is possible to obtain a stable behavior with little rattling at the initial stage of a collision and a continuous impact.

In addition, the through-hole 46a is positioned at the center in the vehicle front-rear direction within the edge 41 of the second opening 40 on the passenger compartment side. The fixing portion 45 of the door trim body 20 is arranged in the center without being biased in any of the longitudinal directions of the vehicle. It is possible to stably hold the armrest 30, reduce rattling at the initial stage of collision, and obtain stable behavior against continuous impact.

<Example 2>
FIG. 7 shows a vehicle door trim 10A according to a second embodiment. Configurations common to those of the vehicle door trim 10 of Embodiment 1 are denoted by the same reference numerals as those of Embodiment 1, and descriptions thereof are omitted.

A pair of bridging portions 50A and 60A span the second opening 40 in the vehicle width direction from an edge 41 of the second opening 40 on the vehicle compartment side to an edge 42 on the vehicle outer side. The front bridging portion 50A has a substantially L shape as a whole.

Specifically, the front bridging portion 50A includes a first plate-shaped portion 51A extending upward from an edge 41 on the vehicle interior side, and an edge 42 on the vehicle outside from the upper end of the first plate-shaped portion 51A. A plate-shaped second plate-shaped portion 52A extending in an upward slope is integrally formed. The width W3 of the second plate-shaped portion 52A is set in a tapered shape so as to narrow from the end portion 53A on the vehicle interior side toward the end portion 54A on the vehicle exterior side.

The configuration of the rear bridging portion 60A is the same as that of the front bridging portion 50A. That is, the rear bridging portion 60A has a substantially L shape as a whole and is composed of a first plate-like portion 61A and a second plate-like portion 62A. The width of the second plate-like portion 62A is set in a tapered shape so that the width of the second plate-like portion 52 narrows from the cabin-side end portion 63A toward the car-outside end portion 64A.

The vehicle door trim 10A of the second embodiment also has the same effect as the first embodiment. Description is omitted.

It should be noted that the present invention is not limited to the Examples as long as the action and effect of the present invention are exhibited.

The vehicle door trim of the present invention is suitable for mounting on a passenger car.

10... vehicle door trim 20... door trim main body 22... expanded portion 23... upper surface of expanded portion 30... armrest 30a... rear surface of armrest 36... fixed portion 40... second opening (opening)
41... Interior side edge 42... Outer side edge 45... Fixed part 46a... Through hole 50... Front bridging part 50A... Front bridging part 50a... Lower surface of front bridging part 53... Outer side of vehicle ( one end), 53A... the end outside the vehicle (the other end)
54... end on the cabin side (the other end), 54A... end on the cabin side (one end)
60 Rear bridging portion 60A Rear bridging portion 60a Lower surface 63 Outer end of vehicle (one end) 63A Outer end of vehicle (other end)
64... end on the cabin side (the other end), 64A... end on the cabin side (one end)
70... Rib 80... Rib W2... Width of bridging portion, W3... Width of bridging portion W2a... Width of end on cabin side (width of the other narrow end)
T2 -- thickness of rib C -- clearance CL -- center line of through-hole

Claims (4)

A vehicle door trim comprising: a door trim body having a bulging portion that bulges inward in a vehicle width direction; and an armrest fixed to an upper surface of the bulging portion,
the upper surface of the bulging portion has a long opening in the vehicle front-rear direction that is blocked by the armrest;
A bridging portion is bridging and integrated in the vehicle width direction from the edge of the opening on the vehicle interior side to the edge on the vehicle exterior side,
A rib extending in the vehicle width direction is provided on the lower surface of the bridging portion,
The bridging portion and the rib are configured to bend as a whole when a load is applied to the door trim body in the vehicle width direction ,
The width of the bridging portion is set so as to narrow from one end on the vehicle exterior side or the vehicle interior side toward the other end,
the edge of the exterior side of the opening of the door trim body has a plate-like fixing portion for fixing the armrest to the door trim body;
The armrest has a fixed portion that can be fixed to the fixed portion of the door trim body,
The fixed portion of the door trim body has a through hole penetrating the fixed portion in the vehicle width direction,
A pair of the bridging portions are provided in the front-rear direction of the vehicle so as to sandwich the opening of the door trim body with a gap from the center line of the through hole when viewed from above. Vehicle door trim. A vehicle door trim comprising: a door trim body having a bulging portion that bulges inward in a vehicle width direction; and an armrest fixed to an upper surface of the bulging portion,
the upper surface of the bulging portion has a long opening in the vehicle front-rear direction that is blocked by the armrest;
A bridging portion is bridging and integrated in the vehicle width direction from the edge of the opening on the vehicle interior side to the edge on the vehicle exterior side,
A rib extending in the vehicle width direction is provided on the lower surface of the bridging portion,
The bridging portion and the rib are configured to bend as a whole when a load is applied to the door trim body in the vehicle width direction ,
The width of the bridging portion is set so as to narrow from one end on the vehicle exterior side or the vehicle interior side toward the other end,
The width of the other end is set to be substantially the same as the thickness of the rib,
the edge of the exterior side of the opening of the door trim body has a plate-like fixing portion for fixing the armrest to the door trim body;
The armrest has a fixed portion that can be fixed to the fixed portion of the door trim body,
The fixed portion of the door trim body has a through hole penetrating the fixed portion in the vehicle width direction,
A pair of the bridging portions are provided in the front-rear direction of the vehicle so as to sandwich the opening of the door trim body with a gap from the center line of the through hole when viewed from above. Vehicle door trim. A vehicle door trim comprising: a door trim body having a bulging portion that bulges inward in a vehicle width direction; and an armrest fixed to an upper surface of the bulging portion,
the upper surface of the bulging portion has a long opening in the vehicle front-rear direction that is blocked by the armrest;
A bridging portion is bridging and integrated in the vehicle width direction from the edge of the opening on the vehicle interior side to the edge on the vehicle exterior side,
A rib extending in the vehicle width direction is provided on the lower surface of the bridging portion,
The bridging portion and the rib are configured to bend as a whole when a load is applied to the door trim body in the vehicle width direction ,
The bridging portion and the back surface of the armrest do not contact each other and have a gap therebetween,
the edge of the exterior side of the opening of the door trim body has a plate-like fixing portion for fixing the armrest to the door trim body;
The armrest has a fixed portion that can be fixed to the fixed portion of the door trim body,
The fixed portion of the door trim body has a through hole penetrating the fixed portion in the vehicle width direction,
A pair of the bridging portions are provided in the front-rear direction of the vehicle so as to sandwich the opening of the door trim body with a gap from the center line of the through hole when viewed from above. Vehicle door trim. The through-hole according to any one of claims 1 to 3, wherein the through-hole is positioned substantially at the center in the longitudinal direction of the vehicle in the edge of the opening on the side of the passenger compartment. Vehicle door trim.

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