JP3744063B2 - Car door structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automobile door structure, and more particularly to a side door structure that takes into account shock absorption during a side collision.
[0002]
[Prior art]
In general, a door trim on which an interior material called a trim panel is stretched is formed on the surface of the side door of an automobile, and an armrest and a lower side of the armrest are provided on the surface of the side door on the vehicle interior side. Therefore, for ease of manufacturing, it is often manufactured by dividing into an upper trim panel including an armrest and a lower trim panel having a pocket portion. In addition, due to design requirements, the material of the door trim surface may be made different between the upper part and the lower part. In this case as well, the upper trim panel and the lower trim panel are divided and manufactured. The door trim is formed by joining the edge portions of the panels so as to overlap each other.
[0003]
Furthermore, in order to strengthen the protection of the occupant at the time of a side collision when the vehicle collides from the side of the automobile, an impact bar is provided in the side door and, for example, as disclosed in JP-A-4-345551, An impact absorbing member is provided at a portion on the back side of the door trim corresponding to the lumbar portion of the occupant seated on the seat.
[0004]
[Problems to be solved by the invention]
By the way, when the door trim of a side door is comprised by the at least 2 trim panel joined in the aspect which mutually overlaps an edge part, the other trim panel in one trim panel in the junction part of two adjacent trim panels In some cases, both trim panels are joined by standing a boss extending toward the side and screwing the edge of the other trim panel to the boss. In this case, a plurality of reinforcing ribs extending in the radial direction are provided at the base of the boss to strengthen the joint between both trim panels.
[0005]
However, when the occupant seated on the seat near the side door provided with the door trim moves to the side door side at the time of a side collision and collides with the door trim, the rigidity of the boss is large. There was a problem that the passengers were shocked.
[0006]
In view of the above-described circumstances, the present invention provides an automobile door structure that reduces the impact applied to an occupant and protects the occupant even when the occupant inertially moves to the side door side in a side collision. Objective.
[0007]
[Means for Solving the Problems]
In the door structure of an automobile according to the present invention, a boss extending toward the other trim panel is erected on one trim panel at a joint portion between two trim panels adjacent to each other, and is adjacent to the other through the boss. two trim panel Ri is Na is bonded, to the base of the boss, a plurality of reinforcing ribs extending in the radial direction to the axis of the boss portion is provided only along the joint line of the trim panel of two above In addition, the reinforcing rib is configured to be connected only to the boss with respect to the erected direction of the boss so that the boss easily falls in a direction substantially perpendicular to the joining line. It is what.
[0008]
In this case, by providing only along a plurality of reinforcing ribs extending in the radial direction at the base of the boss to the joint line of the two trim panels, Ru can be easily collapse in a direction substantially perpendicular to the boss to the joint line .
[0009]
Also, the boss with the reinforcing ribs may be provided at positions corresponding to the passenger's waist sitting on the side of the seat close to the side door of the door trim is provided.
[0010]
Furthermore, it is preferable that an impact absorbing member is disposed in the side door so as to overlap a portion where the boss having the reinforcing rib is provided in the vehicle width direction.
[0011]
【The invention's effect】
According to the present invention, a plurality of reinforcing ribs extending in the radial direction are provided at the base portion of the boss only along the joining line of the two trim panels, and the rib in the direction substantially orthogonal to the joining line is omitted, thereby the trim panel. The joint of the boss is easy to bend in a direction substantially perpendicular to the joint line, so even if an occupant seated on the seat moves to the side door side and collides with the door trim at the time of a side collision, The impact applied to the occupant can be mitigated by falling down and deforming in a direction substantially perpendicular to the vehicle.
[0012]
In addition, when an occupant seated on a seat close to the side door provided with the door trim moves to the side door side and collides with the door trim at the time of a side collision, first, the side part of the occupant's waist is the door trim. Since it collides, the impact applied to the occupant can be mitigated by providing the reinforcing rib configured so that the boss provided at this portion is easily tilted in a direction substantially perpendicular to the joining direction line of the trim panel. Can do.
[0013]
Furthermore, the shock absorbing member is arranged in the side door so that it overlaps in the vehicle width direction with the part where the boss with the reinforcing rib is provided in the side door, thereby improving the ability to absorb the shock applied to the occupant during a side collision. Can be made.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0015]
FIG. 1 is a perspective view showing a door trim of an inner surface of a right side door of a front of an automobile embodying the present invention, and FIG. 2 is an enlarged sectional view of the side door taken along line II-II in FIG.
[0016]
The door trim 1 is composed of an upper trim panel 2 and a lower trim panel 3 that are joined together in such a manner that the edges overlap each other along a joining line L that extends in the front-rear direction of the vehicle body. An arm rest 4 is formed on the upper trim panel 2, and a pocket portion 5 and a speaker mounting portion 6 are formed on the lower trim panel 3. As shown in FIG. 2, the upper trim panel 2 has a configuration in which a skin material 2b is attached to the surface of a trim base 2a.
[0017]
The lower edge portion of the upper trim panel 2 and the upper edge portion of the lower trim panel 3 are joined to each other at a plurality of locations along the joining line L. Among these joined portions, the joined portion above the pocket portion 5, that is, In the joint portion corresponding to the waist of the occupant seated on the seat on the side close to the side door provided with the door trim 1, as shown in FIG. Two cylindrical bosses 7, 8 standing up and down are arranged vertically, and an upper trim panel 2 that extends downward so as to overlap the upper edge of the lower trim panel 3 is disposed at the tip of the upper boss 7. The lower edge portion is fixed by screws 9, and the upper edge portion of the trim member 10 provided to close the hole of the pocket portion 5 is fixed by screws 9 at the tip of the lower boss 8.
[0018]
As shown in FIG. 3, reinforcing ribs 7a and 7a extending in the radial direction are integrally provided around the base of the upper boss 7, and these reinforcing ribs 7a and 7a are connected to the boss 7 in FIG. As is apparent from FIG. 3 (a) viewed from the A direction and FIG. 3 (b) viewed from the B direction of FIG. 3 (a), the reinforcing ribs in the vertical direction are provided only in the longitudinal direction of the vehicle body. ing. The lower boss 8 has a similar configuration. With such a configuration, when an impact is applied to the bosses 7 and 8, the joint line L between the upper and lower trim panels 2 and 3 extends in the longitudinal direction of the vehicle body, and the joint between the trim panels 2 and 3 moves up and down. Combined with the fact that the bosses 7 and 8 are easily bent in the direction, the bosses 7 and 8 are easily tilted in the vertical direction, whereby the impact applied to the occupant during the side collision can be reduced.
[0019]
As shown in FIG. 2, an inner panel 11 of a side door is provided behind the door trim 1, and further, a rear surface of the door trim 1 is provided with a portion where bosses 7 and 8 are provided in the vehicle width direction. A shock absorbing member (pad) 12 made of foamed synthetic resin and having cushioning properties is attached so as to overlap. In addition, the member shown with the code | symbol 13 in FIG. 2 is the door glass raised / lowered by the window regulator which is not shown in figure, 14 is an outer panel of a side door.
[0020]
An impact bar 15 extending in the longitudinal direction of the vehicle body is disposed on the inner side of the outer panel 14 of the side door in order to improve rigidity against side collision, and both front and rear ends of the impact bar 15 are fixed to the door body. As shown in FIG. 4, a shock absorbing member 17 having cushioning properties is suspended from the impact bar 15 via a bracket 16, and the shock absorbing member 17 extends from the right side of FIG. 4 to the bracket 16. It is inserted and locked at a position where it abuts against a stopper 16a included in the bracket 16. Similarly to the shock absorbing member 12, the shock absorbing member 17 is also disposed so as to overlap with the portion where the bosses 7 and 8 are provided in the vehicle width direction.
[0021]
Further, in order to reinforce the upper edge portion of the upper trim panel 2, a reinforcing plate as shown in FIGS. 5 and 6 is arranged as a belt line reinforcement 18 between the upper trim panel 2 and the door inner panel 11. It is installed. 5 is an enlarged sectional view taken along the line VV in FIG. 1. In FIG. 5, the reinforcement 18 is shown as an enlarged sectional view taken along the line VV in FIG.
[0022]
The automobile door structure according to the present embodiment has the above-described configuration, so that when the occupant seated on the seat moves inertia during a side collision and the waist collides with the door trim 1, the boss The impact applied to the occupant can be mitigated by the 7, 8 falling and deforming in the vertical direction.
[0023]
By disposing the shock absorbing members 12 and 17 so as to overlap with the portions where the bosses 7 and 8 are provided in the vehicle width direction, it is possible to improve the ability to absorb the shock applied to the occupant during a side collision.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a door trim of an inner surface of a right side door of a front of an automobile embodying the present invention. FIG. 2 is an enlarged sectional view of a side door taken along line II-II in FIG. The figure which shows the structure of the boss | hub provided with the rib [FIG. 4] The side view which shows the state in which the impact-absorbing member is attached to the impact bar [FIG. 5] The expanded sectional view along the VV line of FIG. ] Side view of beltline reinforcement [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Door trim 2 Upper trim panel 3 Lower trim panel 4 Armrest 5 Pocket part 7, 8 Boss 7a Reinforcement rib 9 Screw 11 Inner panel 12, 17 Shock absorption member 13 Door glass 14 Outer panel 15 Impact bar 16 Bracket 18 Belt line reinforcement

Claims (3)

In a door structure of an automobile in which a door trim of a side door is constituted by at least two trim panels joined in a manner of overlapping edges with each other,
A boss extending toward the other trim panel is erected on one trim panel at a joining portion of two adjacent trim panels, and the two adjacent trim panels are joined via the boss. Do Ri, the base of the boss, with a plurality of reinforcing ribs extending in the radial direction to the axis of the boss portion is provided only along the joint line of the two trim panels, substantially the boss junction line A door structure for an automobile , wherein the reinforcing rib is configured to be connected only to the boss with respect to a standing direction of the boss so as to easily fall in an orthogonal direction. Vehicle according to claim 1, wherein the boss having a reinforcing rib, characterized by comprising provided at positions corresponding to the passenger's waist sitting on the side of the seat close to the side door of the door trim is provided Door structure. Vehicle door structure according to claim 1 or 2, characterized in that the shock-absorbing member is disposed so as to overlap in part in the vehicle width direction bosses with the reinforcing ribs are provided.

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