JPH0328020A - Energy absorber for vehicle - Google Patents

Abstract

PURPOSE:To suppress the deformation of a door and its circumference during collision and to improve the absorbing effect of impact energy by opposing the respective inner side faces of an outer panel and an inner panel to each other so as to provide reinforcing members and disposing energy absorbing members on the inside of a vehicle chamber at positions where the inner panel reinforcing members are attached. CONSTITUTION:Opposing to an inner panel 4 and an outer panel 3 or to either one of them. Reinforcing members 10 to 13 are provided and also pads 5 composed of foaming urethane or the like are provided on the inside of a vehicle chamber facing to the positions of the reinforcing members 12, 13 of the inner panel 4. In this construction, when a collision from the direction of an arrow alphatakes place, crew collide toward the direction of beta due to reaction. Thus, the outer panel and the inner panel 3 and 4 respectively collapse inward, but impact energy is absorbed by the pads 5 and deformation is suppressed by the reinforcing members 10 to 13.

Description

DETAILED DESCRIPTION OF THE INVENTION <<Industrial Application Field>> The present invention relates to a device for absorbing energy at the time of a collision occurring in and around a vehicle door.

<<Prior art>> Conventionally, as shown in FIG.
A structure is known in which a pad 5 made of an energy absorbing material is attached to the inner side surface of the inner panel 4 of the door 1, which is composed of an outer panel 3 and an inner panel 4 with a glass center 2 in between.

In addition, this pad 5 is reinforced with a hard skin layer 6 (
Utility Model Application No. 58-118082) etc. have also been proposed.

In the figure, when a passenger moves relatively in the direction of arrow β due to the reaction of a so-called collision from the direction of arrow α and collides with the pad 5, the impact energy is absorbed by the pad 5.
This is to protect the occupants.

<<Problems to be Solved by the Invention>> Incidentally, the inner panel 4 is generally composed of a single thin plate with a thickness of 1 mm or less, and thus has low rigidity.

Therefore, when a side collision occurs in the direction of the arrow α as described above, the occupant collides in the direction of the arrow β, but due to this collision of the occupant, the inch panel 4, which has low rigidity, is greatly deformed.
The position of the pad 5 is significantly shifted from the collision position of the occupant, and the pad 5 cannot be expected to absorb energy.

On the other hand, if the energy from outside the vehicle (in the direction of arrow α) during a side collision is large, the force will deform the outer panel 3, crush the inner panel 4, and displace the pad 5, or cause the pad 5 to displace itself before it makes contact with the occupant. As a result, the pad 5 is deformed (crushed) and cannot exhibit a sufficient energy absorption function.

The present invention has been made in view of the above points, and its purpose is to eliminate large deformation of the outer and inner panels when a vehicle collision occurs at the door and its surroundings, and effectively reduce impact energy. The goal is to propose a device that can absorb the

(Means for Solving the Problem) In order to achieve the above object, in the present invention, a first reinforcing member is provided on the inner surface of the outer panel of the vehicle door, and the first reinforcing member is provided on the inner surface of the inner panel. It is characterized in that a second reinforcing member is provided facing each other, and an energy absorbing material is arranged on the outer surface (inside the vehicle interior) of the inch panel at the location where the second reinforcing member is installed.

<<Function>> In the device according to the present invention, when a collision occurs from the outer panel side, the first reinforcing member suppresses deformation of the outer panel as much as possible.

Further, although passengers or cargo inside the vehicle collide with the inner panel side due to the reaction of the above-mentioned collision force, deformation of the inch panel is suppressed as much as possible by the second reinforcing member.

Despite this restraint, when the outer panel and the inner panel deform, the first and second reinforcing members come into contact and become a substantially integrated reinforcing member, exerting a strong reinforcing effect, and deforming the outer and inner panels. prevent large deformation of

As a result, significant displacement and deformation of the energy absorbing material disposed on the side surface of the interior panel of the vehicle interior is prevented.

Further, the substantially integral reinforcing member described above can sufficiently absorb reaction force when an occupant, cargo, etc. collide with the energy absorbing material.

As described above, in the device according to the present invention, the energy absorbing material exhibits an appropriate and highly efficient energy absorbing action.

Note that the window glass smoothly moves up and down between the first reinforcing member and the second reinforcing member.

《Example〉 Figure 1 (A). 1(B) shows an embodiment of the apparatus according to the present invention, FIG. 1(A) is a sectional view, and FIG.
FIG. 1A is a cross-sectional view taken along line A-A of FIG. (B
), the same reference numerals as in FIG. 3 indicate the same parts as in FIG.

As shown in the figure, a first reinforcing member consisting of an outer belt line reinforcement 10 and an impact par 11 is provided on the inner surface of the outer panel 3 of the door 1. The outer belt line reinforcement 10 is placed above the door 1, and the impact par 11 is placed below the door 1.

A second reinforcing member consisting of an inner beltline reinforcement 12 and a lower beltline reinforcement 13 is provided on the inner surface of the inner panel 4 to face the first reinforcing member (10.11). The inner beltline reinforcement 12 is arranged above the door 1 so as to face the outer beltline reinforcement 10 described above. Further, the lower belt line reinforcement 13 is disposed below the door 1, facing the impact par 11 described above.

Further, on the side surface of the vehicle interior of the inner panel 4, there is a reinforcing member just behind the second reinforcing member 12, 13 mentioned above. A pad 5 made of a normal energy absorbing material such as foamed polyurethane is placed at the location. As shown in the figure, the surface of the pad 5 may be covered with a hard skin layer or the like 6.

It should be noted that on the inside surfaces of the outer and inner panels 3.4 (that is, the side on which the above-mentioned first and second reinforcing members 10, 11, 12.13 are provided, the same applies hereinafter), for example, as shown in FIG. As shown in B), a stay 14 extending in the vertical direction is provided to increase the rigidity of each panel 3, 4 to some extent, and to
．． The second reinforcing elements 10-13 may be firmly attached to each panel 3.4.

In the apparatus according to the present invention constructed as described above, when a vehicle collision occurs in the direction of the arrow α in FIG. 2, the occupants or cargo inside the vehicle collide in the direction of the arrow β in the figure as a reaction.

The outer and inner panels 3.4 are each crushed inward by the impact forces from the α and β directions. However, due to the reinforcing action of the first and second reinforcing members 10 to 13, large deformation of each of the panels 3 and 4 does not occur, and therefore, no significant displacement of the pad 5 occurs.

Then, due to the crushing of the outer and inner panels 3.4 to a certain extent, the first and second reinforcing members 10 to 13 come into contact with each other, that is, with the outer and inner belt line reinforcements 10.12, and with the impact par 11 and the lower belt. The line reinforcements 13 are in surface contact with each other, forming a substantially integral reinforcing member as shown in FIG.

This substantially integral reinforcing member can sufficiently absorb the reaction force of the collision force of an occupant or the like against the pad 5 from the direction of the arrow β. Therefore, the energy absorption efficiency of the pad 5 is greatly improved, and excessive protrusion of the door portion toward the interior of the vehicle in the event of a side collision is also suppressed.

(Effects of the Invention) As detailed above, the device according to the present invention can provide the following effects when a vehicle collision occurs at the door and its surroundings.

(1) First and second marks on the inner surfaces of the outer and inner panels.
Since the reinforcing member is provided, large deformation of both panels is prevented, and excessive protrusion of the door portion toward the inside of the vehicle cabin is also prevented in the event of a side collision.

(2) As a result of (1) above, the pad provided on the inside surface of the inner panel is prevented from being significantly displaced or deformed, and passengers, cargo, etc. can reliably come into contact with the pad.

(3) By squeezing the outer and inner panels inward to some extent, the first and second reinforcing members come into surface contact and become a substantially integral reinforcing member, resulting in the effect of (1) above, and by extension the effect of (2) above. ).

(4) The generally integrated reinforcing member in (3) above can sufficiently absorb the reaction force of a collision of an occupant or the like with the pad;
Greatly improves the impact energy absorption effect of the pad.

(5) Since the outer panel is provided with the first reinforcing member and the inner panel is provided with the second reinforcing member, the window glass can be raised and lowered smoothly between the first and second reinforcing members. can.

[Brief explanation of drawings]

Figure 1 (A). 1(B) shows an embodiment of the device according to the present invention, FIG. 1(A) is a sectional view, and FIG.
A) is a sectional view taken along the line A--A, FIG. 2 is a diagram showing the operation of the embodiment shown in FIG. 1, and FIG. 3 is a diagram showing an example of a conventional energy absorbing device. Figure 1 (A) (B)

Claims (1)

[Claims] A first reinforcing member is provided on the inner surface of the outer panel of the vehicle door, a second reinforcing member is provided on the inner surface of the inner panel opposite to the first reinforcing member, and An energy absorbing device for a vehicle, characterized in that an energy absorbing material is arranged on the outer side of a panel (on the inside of a vehicle interior).