JP2860940B2 - Vehicle door structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door structure for a vehicle, which increases an energy absorbing ability against a lateral load on a vehicle body and reduces a lateral load on an occupant.

[0002]

2. Description of the Related Art Conventionally, as described in, for example, Japanese Utility Model Laid-Open Publication No. Sho 59-155257, a bag-shaped flexible member provided on a door and airtightly defining an inflatable chamber on the vehicle interior side. A member, a panel made of a low-rigidity material provided on the flexible member and exposed to the vehicle interior and protruding toward the interior of the vehicle with the expansion of the room, and detecting an impact applied to the door to detect the impact. An automobile comprising: a gas generator that fills a room defined by a flexible member with an expectation; and a shape fixing device provided on a door and supporting the expanded and expanded flexible member as the chamber expands. An occupant protection device has been proposed.

[0003]

However, the above-mentioned conventional occupant protection system for an automobile has an inflatable bag-shaped flexible member and a gas filled in a chamber defined by the flexible member upon detecting an impact. However, there is a problem in that a gas generator or the like is required, which complicates the structure and increases the manufacturing cost. Also, Japanese Patent Application Laid-Open No. 1-153353, or
In JP-A 61-171620, an energy absorbing member (urethane) is provided for occupant protection. However, since the energy absorbing member (urethane) is provided between the door inner panel and the door trim, There is a problem that the thickness of the energy absorbing member (urethane) is limited and the energy absorbing ability is limited. Furthermore, there is also a means for increasing the energy absorbing ability by thickening the energy absorbing member disposed between the door inner panel and the door trim,
According to this means, there is a problem that the distance between the door inner panel and the door trim becomes large, the thickness of the door becomes excessive, and the space in the vehicle compartment becomes narrow.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, to improve the ability to absorb energy from a load on the side of the vehicle body with a simple structure and to improve the ability to reduce the load on the side of the vehicle body to an occupant. It is an object of the present invention to provide a vehicle door structure capable of performing the following.

[0005]

In order to achieve the above object, a vehicle door structure according to the present invention is characterized in that a door outer panel on the outside of the vehicle and a door inner panel on the inside of the vehicle are joined to form an internal space, and the door is connected to the door. In a door structure in which a door trim is mounted on a vehicle interior side of an inner panel, an opening communicating with the internal space is provided in the door inner panel, and a position corresponding to the opening is provided between the opening and the door trim. A first energy absorber, and a second energy absorber provided between the opening and the door outer panel, so that when a load is applied from the side of the vehicle body, the first and second energy absorbers are provided. Each of the energy absorbers deforms and absorbs energy, so that side impact loads can be reduced.
Further, since the energy absorber is provided between the door outer panel and the door trim through the opening, the thickness of the deformable energy absorber in the vehicle width direction at the time of a side collision can be increased. By using the internal space between the door outer panel and the door inner panel, it is possible to suppress an increase in the thickness of the door, suppress regulation in the vehicle interior, and increase the energy absorption capacity.
Furthermore, since the second energy absorber can penetrate the opening, all the input to the second absorber is reliably transmitted to the first absorber, and the energy absorption capacity is further increased by the joint deformation of the two. be able to.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. 1 and 2, a door 1 for a vehicle includes a door outer panel 2 on the outer side of the vehicle and a door inner panel 3 on the inner side of the vehicle, which are joined together to form an internal space 10. Are fasteners 40 such as fasteners
It is mounted by. Further, a part of the door trim 4 protrudes toward the vehicle interior to form an armrest 41.

A door opening reinforcement 20 having a closed space therein is provided in the longitudinal direction of the door 1 at a position of a belt line at an upper end of the door outer panel 2, and a belt at an upper end of the door inner panel 3 is provided. At the position of the line, a door opening reinforcement 30 having a closed space therein is provided in parallel with the door opening reinforcement 20 of the door outer panel 2, and both door opening reinforcements 20 and 30 are provided. A window glass (not shown) is set up and down freely in the formed gap.

The lower part of the door inner panel 3 (armrest
An opening 32 is provided at a position below 41).
And other assembling work between the door outer panel 2 and the door inner panel 3 is performed. Door inner panel 3
A door screen 5 formed of a flexible material covering the entire surface of the door trim 4 is provided so as to be sandwiched between the door trim 4 and an internal space of the door 1 in which various mechanisms are stored.
Prevents dust and the like from entering the interior.

The inside of the door trim 4 (the door inner panel 3)
An energy absorbing member 6 made of an impact absorbing material such as urethane or styrene foam is fixed downwardly from the armrest 41 of the side), and is brought into contact with the door inner panel 3 via the door screen 5. Installed between door trims 4.

A projecting portion 61 is formed at a position corresponding to the opening 32 of the door inner panel 3 of the energy absorbing member 6, and the projecting portion 61 is formed together with the door screen 5 between the door outer panel 2 and the door inner panel 3. Protrude into the internal space 10. Thereby, at the position corresponding to the opening 32, the first energy absorber (the energy absorbing member 6) provided on the door trim 4 side from the opening 32 and the second energy provided on the door outer panel 2 side from the opening 32 An absorber (projection 61) is formed.

According to this structure, when a load is applied from the side of the vehicle body, the energy absorbing member (first energy absorbing member) 6 is deformed through the door trim 4 to absorb energy, and at the same time, the interior space of the door is adjusted. Projecting part (second
The energy absorber (61) is deformed and can largely absorb the energy of the side load.

Further, the door outer panel 2 and the door inner panel 3 are joined in advance, and the energy absorbing member 6 is placed inside the door inner panel 3 (the door inner panel 3 side) with the door screen 5 covering the side surface of the door inner panel 3 in the vehicle interior. By attaching the door trim 4 fixed to the
Can be installed inside the door trim 4 while protruding from the opening 32 of the door inner panel 3 into the interior space of the door, thereby improving the assemblability.

An energy absorbing member 7 made of an impact absorbing material is provided in a closed space of the door opening reinforcement 20 at the upper end of the door outer panel 2. Energy absorbing member 8 in closed space of door opening reinforcement 30
Is provided.

With this configuration, the energy absorbing ability at the position of the belt line is increased, and the load from the side of the vehicle body can be reduced.

Next, another embodiment will be described with reference to FIG. An energy absorbing block (second energy absorbing body) 601 located in the interior space 10 is fixed to the door screen 50 through the opening 32 of the door inner panel 3, and inside the door trim 4 (on the side of the door inner panel 3). Installed energy absorption block (first energy absorber) 600
And energy absorption block (second energy absorber)
601 sandwiches the door screen 50.

According to this configuration, a sufficient space for installing the energy absorber can be ensured, the energy absorbing ability can be increased, and the internal space between the door outer panel and the door inner panel can be utilized. As a result, it is possible to suppress an increase in the thickness of the door, suppress the regulation in the vehicle interior, and increase the energy absorption capacity.

[0017]

Since the present invention is configured as described above, it has the following effects. When receiving a load from the side of the vehicle body, the first energy absorber and the second energy absorber deform so that the energy of the side load can be largely absorbed and the side load can be reduced. Further, since the energy absorber is provided through the opening between the door outer panel and the door trim, the thickness of the deformable energy absorber at the time of a side collision can be increased. By utilizing the internal space between the door and the inner panel, it is possible to suppress an increase in the thickness of the door, suppress the regulation in the vehicle interior, and increase the energy absorption capacity. further,
Since the second energy absorber can penetrate the opening, all the input to the second absorber is transmitted to the first absorber with certainty, and the energy absorption capacity can be further increased by the joint deformation of the two. it can.

[Brief description of the drawings]

FIG. 1 is a perspective view of a vehicle door showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a sectional view showing another embodiment of the present invention.

[Explanation of symbols]

Reference Signs List 1 door, 2 door outer panel, 3 door inner panel, 4 door trim 5 door screen, 6, 7, 8 energy absorbing member 10 door internal space, 20, 30 door opening reinforcement 61 projecting portion of energy absorbing member,

Claims (2)

(57) [Claims] 1. A door structure in which a door outer panel on an outer side of a vehicle and a door inner panel on an inner side of the vehicle are joined to form an internal space, and a door trim is mounted on a vehicle interior side of the door inner panel. An opening communicating with the internal space is provided in the panel, and at a position corresponding to the opening,
A vehicle door structure comprising: a first energy absorber provided between the opening and a door trim; and a second energy absorber provided between the opening and a door outer panel. 2. The vehicle door structure according to claim 1, wherein the second energy absorber can penetrate the opening.