JP2000118339A - Collision energy absorption device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small and lightweight collision energy absorption member having sufficient collision energy absorbability using a simple means. SOLUTION: In an impact energy absorption device 4, an impact energy absorption member is formed of a planar member 10 and absorption member retaining mechanisms 5, 6 for retaining the planar member 10 comprise one retaining member 5 retaining one end of the planar member 10 at an end thereof and the other retaining member 6 retaining the other end of the planar member 10 at an end thereof. The retaining members 5, 6 are separately locked to two of one and the other locking members 7, 9 oppositely provided at predetermined portions of an automobile body in such a way as to be displaced in a mutually approaching direction in response to an external impact force, so that when an impact force is applied from outside the automobile, the one retaining member 5 is displaced toward the other retaining member 6 to cause the force to work in the direction to elongate the impact energy absorption member, causing rupturing of the impact energy absorption member and thereby absorbing the impact energy.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an impact energy absorbing member, and more particularly, to an impact energy absorbing member which is attached to a predetermined portion of a vehicle body such as an automobile and absorbs external impact, and which holds the impact energy absorbing member. The present invention relates to a collision energy absorbing device provided with an absorbing member holding mechanism.

[0002]

2. Description of the Related Art Conventionally, an automobile is provided with a collision energy absorbing device in order to secure a living space for an occupant in the event of an external collision. 7 and 8 show a conventional example of the collision energy absorbing device. FIG. 7A is an exploded perspective view of a door DR provided with a collision energy absorbing device, and a door panel DP forming a part of an external shape of the vehicle.
And a door trim DT forming a part of the internal shape of the vehicle
And a window glass W provided between the door panel DP and the door trim DT so as to be vertically movable. FIG. 7B shows a vertical side view of the door DR. As shown in FIG. 7C, the above-described door panel DP includes an outer panel 1 on the side of the vehicle body and an inner panel 2. A rod-shaped side door beam 4 is disposed between the outer panel 1 and the inner panel 2 in the front-rear direction of the vehicle, and when an impact force acts on the outer panel 1, the outer panel 1 and the side door beam 4 are connected to each other. Absorbs impact energy.

[0003] In addition to the side door beam 4, in order to absorb higher impact energy, an impact energy absorbing member made of a honeycomb structure resin H or a hard urethane home U is inserted and arranged. Among them, as shown in FIG. 8A, the honeycomb structure resin H is formed by integrally forming an infinite number of hexagonal cylindrical bodies, and when an impact force is applied in the X direction, the honeycomb structure resin H shown in FIG. It deforms as shown in FIG. 3B, and attempts to absorb the impact force with the energy required for the deformation. Further, as shown in FIG. 9A, the hard urethane home U has countless bubbles K formed therein, and when an impact force acts in the X direction, as shown in FIG. 9B. The inner bubble K is deformed so as to be crushed, and the impact force is absorbed by the energy required for the deformation. According to Japanese Patent Application Laid-Open No. 8-85404, there is proposed a collision energy absorbing device in which a side impact buffer formed by hot pressing a nonwoven fabric containing thermoplastic resin fibers is inserted between an inner panel and an outer panel. Have been. In the case of this hot-pressed product, as in the case of the honeycomb structure resin H and the hard urethane home U, it is intended to absorb the collision energy at the time of collision with the energy required for its own deformation.

[0004]

However, in general, in the case of the honeycomb structure resin shown in FIG. 8A, development and manufacturing costs of a mold for molding the resin are high, and sufficient collision energy is required. A certain amount of volume is required in order to obtain the absorptivity, which limits the design of the inner panel and the outer panel, and further increases the weight of the vehicle body. Further, in the case of a hard urethane home shown in FIG. 9A or a hot-press molded product disclosed in Japanese Patent Application Laid-Open No. 8-85404, the development and manufacturing costs of the above-mentioned molds of the honeycomb structure resin are required. Although not required, the large volume restricts the design of the inner panel and the outer panel, and further increases the weight of the vehicle.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned conventional problems, and provides a collision energy absorbing device which is small, lightweight, and has sufficient collision energy absorption by simple means. The purpose is to:

[0006]

In order to achieve the above-mentioned object, an invention according to claim 1 is provided with an impact energy absorbing member for absorbing an external impact force and an absorbing member holding for holding the impact energy absorbing member. In a collision energy absorbing device provided with a mechanism and mounted on a predetermined portion of a vehicle body such as an automobile, the impact energy absorbing member is formed of a planar member.
The above-described absorbing member holding mechanism for holding the planar member,
It is composed of one holding member for holding one end of the planar member at the distal end and the other holding member for holding the other end of the planar member at the distal end. Each of the holding members is divided into one and the other two fixing members provided opposite to a predetermined portion of the vehicle body so as to be displaced and moved in a direction approaching each other in response to an external impact force. In addition to being fixedly mounted, the holding members protrude from the holding member on the mating side toward the fixing member on the mating side without contacting the end portions of the holding members. With this configuration, when an impact force is applied from the outside of the automobile, one holding member is displaced and moved toward the other holding member, and one holding member is a planar member with respect to the other holding member. Acts in the direction in which the sheet member is stretched, and breaks the planar member to absorb impact energy.

According to a second aspect of the present invention, there is provided an impact energy absorbing member for absorbing an external impact force, and an absorbing member holding mechanism for holding the impact energy absorbing member. In the collision energy absorbing device, the impact energy absorbing member is formed of a planar member. The above-described absorbing member holding mechanism for holding the planar member includes a holding member for holding one end of the planar member at a distal end, and another holding member for retaining the other end of the planar member at a distal end. It consists of. Each holding member is divided into one and the other two fixing members provided opposite to a predetermined portion of the vehicle body so as to be displaced and moved in a direction approaching each other with respect to an external impact force. In addition to being fixedly mounted, the distal ends of the holding members were arranged without contact with each other and substantially at the center between the fixing members. Even in this configuration, when an impact force is applied from outside the automobile, the planar member is gently stretched without bending between the one holding member and the other holding member. The planar member breaks without a time delay with respect to the movement of one of the holding members, and the impact energy can be absorbed.

[0008] The third aspect of the present invention is the first aspect of the present invention.
Alternatively, in the collision energy absorbing device according to item 2, the distal ends of the one and the other holding members are formed in a plate shape corresponding to the above-described planar member. Even with this configuration, in addition to functioning equivalently to the above-described invention of claim 1 or 2, furthermore, when an impact force is applied from the outside of the vehicle, the end portions of the one and the other holding members are used. Since the planar member is securely held, the planar member is broken by displacement movement of one of the retaining members, and the impact energy can be absorbed.

According to a fourth aspect of the present invention, there is provided an impact energy absorbing member for absorbing an external impact force, and an absorbing member holding mechanism for holding the impact energy absorbing member. In the collision energy absorbing device, the impact energy absorbing member is formed of a planar member. Further, the absorbing member holding mechanism is provided with a U-shaped holding member provided with two protruding holding portions for fixing and holding both ends of the planar member, and between the above-mentioned protruding holding portions of the U-shaped holding member. And a plate-shaped pressing member provided with a pressing portion directed to the space. One and the other of the U-shaped holding member and the plate-shaped pressing member are provided opposite to a predetermined portion of the vehicle body so as to be displaced and moved in a direction approaching each other in response to an external impact force. The two fixed members were separately fixed and mounted. With this configuration,
When an impact force is applied from the outside of the vehicle, the plate-shaped pressing member is displaced and moved toward the U-shaped holding member, and both ends of the plate-shaped pressing member are fixed to the two projecting holding portions on the U-shaped holding member. The impact force can be absorbed by acting in the direction in which the planar member stretches to break the planar member

The invention according to claim 5 is the same as the above-described claim 4.
In the above described collision energy absorbing device, the two projecting holding portions of the U-shaped holding member are formed in a plate shape corresponding to the planar member. With this configuration, in addition to functioning equivalently to the above-described fourth aspect of the present invention, when an impact force is applied from the outside of the vehicle, the two projecting holding portions of the U-shaped holding member are used to make a surface. Because the shape member is securely held,
The displacement of the plate-shaped pressing member in the direction of the U-shaped holding member causes the planar member to break, thereby absorbing impact energy.

According to a sixth aspect of the present invention, there is provided the collision energy absorbing device according to the first, second, third, fourth, or fifth aspect, wherein the planar member is a cloth member. With such a configuration, the above-described claims 1, 2, 2
In addition to functioning equivalently to the invention described in 3, 4, or 5, the impact force can be reliably absorbed by breaking the cloth member against the impact force.

The invention according to claim 7 is the same as the above-described claim 6.
The impact energy absorbing device according to the above, wherein the warp forming the connection direction of the cloth-like member is formed of a low-drawn fiber. With this configuration, when an impact force acts from the outside of the vehicle and the absorbing member holding mechanism is displaced and moved, the warp of the cloth member breaks without elongation, and the impact energy can be absorbed without a time delay. .

Further, the invention according to claim 8 is the collision energy absorbing device according to claim 6, wherein a plurality of fibers having different breaking strengths are used as the warps forming the connecting direction of the cloth-like members. With such a configuration, in addition to functioning equivalently to the above-described claim 6, the fiber breaks at different breaking forces with respect to a plurality of different impact forces, so that different impact forces can be reliably achieved. Can be absorbed.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A collision energy absorbing device provided with an impact energy absorbing member according to the present invention is a device which is displaced by impact energy from outside a vehicle, that is, a front cross member, a rear cross member, a side surface of a vehicle and the like. Although it is possible to provide each part, in this embodiment,
The case in which it is provided on the side of the vehicle will be described.

A collision energy absorbing device according to a first embodiment of the present invention will be described with reference to FIGS. First, FIG.
As shown in (1), the door panel DP provided with the collision energy absorbing device 4 includes an outer panel 1 and an inner panel 2. A bar-shaped side door beam 3 is arranged between the outer panel 1 and the inner panel 2 in the front-rear direction of the vehicle. In addition to the side door beam 3, collision energy absorbing devices 4 are arranged at two places so as to sandwich the side door beam 3 from above and below.
The collision energy absorbing device 4 can be provided to be increased or decreased according to the required amount of impact energy absorption. As shown in FIG. 2, the collision energy absorbing device 4 includes a planar member 10 made of a cloth-like member as an impact energy absorbing member that absorbs an external impact force, and an absorbing member that holds both ends of the planar member 10. The member holding mechanisms 5 and 6 and the absorbing member holding mechanisms 5 and 6 are attached to predetermined portions of the vehicle body,
And a fixing member 7 provided at a predetermined position of the inner panel 2,
8.

The absorbing member holding mechanisms 5 and 6 include a planar member 10.
And a holding member 6 holding the other end 10D of the sheet member 10 at the tip 6A. Of these,
The tip 5A of one holding member 5 is formed in a plate shape corresponding to the planar member 10 and has a joint 5B with one end 10C of the planar member 10. Further, the end 5C opposite to the tip 5A is attached to a fixing member 7 described later. Further, the distal end portion 6A of the other holding member 6 is formed in a plate shape corresponding to the planar member 10, and a joint 6B with the other end portion 10D of the planar member 10 is formed. The end 6C opposite to the tip 6A is attached to a fixing member 8 described later. Each of the holding members 5 and 6 is provided opposite to a predetermined portion of the outer panel 1 and the inner panel 2 so as to be displaced and moved in a direction approaching each other in response to an external impact force on the outer panel 1. The two fixed members 7 and 8 are separately fixed to each other (see FIG. 4A).

The one fixing member 7 has a plate shape and a shape conforming to the shape of the outer panel 1, and is joined to a predetermined portion of the outer panel 1. The holding member 5 is joined to a substantially central portion of the fixing member 7 in a T-shaped cross section.
Only by changing the shape of the fixing member 7 according to the shape of the outer panel 1, one of the holding members 5 of the absorbing member holding mechanism is changed.
Can be adapted to the outer panel 1 of any shape. The other fixing member 8 is plate-like and has a shape conforming to the shape of the inner panel 2, similarly to the above-described fixing member 7, and the holding member 6 has a cross section substantially at the center of the fixing member 8. Joined in a T shape. The other holding member 6 of the absorbing member holding mechanism can correspond to the inner panel 2 of any shape only by deforming the shape of the fixing member 8 according to the shape of the inner panel 2.

Planar member 1 as impact energy absorbing member
Numeral 0, as shown in FIG. 3, is formed of a cloth-like member that is broken by an impact force (that is, a predetermined instantaneous tensile load). The cloth-like member (plane member) 10 includes a warp 10A connecting the absorbing member holding mechanisms 5 and 6, and a warp 10A.
And a weft yarn 10B for bundling. Of these, the warp 10A is formed of low drawn fiber. The formation of the low drawn fiber prevents one of the holding members 5 from contacting the other fixing member 8 before the warp yarn 10A breaks, thereby preventing the absorption of impact energy from being disabled. Further, by increasing or decreasing the number of the warp yarns 10A, or by replacing fibers having high or low breaking strength with each other, the breaking load can be changed, and the amount of energy absorption can be appropriately changed. Moreover, warp yarns 10A, as shown in FIG. 3 (D), by combining fibers 10A 1 having different breaking _strength, 10A ₂ are alternately, it is possible to change the impact energy absorption stages. Further, the weft yarn 10B is woven so that the warp yarn 10A is tangled so as not to bend linearly, and the cloth body 10 is directly laid without delay with respect to the displacement of the holding members 5 of the absorbing member holding mechanisms 5, 6. Is broken.

Further, one end 10C of the cloth-like member (plane member) 10 woven with the warp yarn 10A and the weft yarn 10B includes:
One end connecting portion connected to the distal end portion 5A of one holding member 5 is formed in a cylindrical shape, and the other end portion 10D of the planar member 10 has the other end connecting portion connected to the distal end portion 6A of the holding member 6. Are formed in a cylindrical shape. By connecting the one end connecting portion and the other end connecting portion to the joining portion 5B of the tip 5A of the holding member 5 and the joining portion 6B of the tip 6A of the holding member 6,
The planar member 10 and the holding members 5 and 6 are integrally formed. As shown in FIG. 7, the tips 5A, 6A of the holding members 5, 6 formed integrally with the planar member 10 are not in contact with each other and are higher than the tips 5B, 6B of the mating holding members. It protrudes toward the fixed member side of the other party. Accordingly, the holding member 5 is displaced and moved toward the holding member 6 by an impact from the outside of the vehicle, and the planar member 10 receives a tensile load and breaks. In addition, by disposing the distal ends 5B and 6B of the holding members 5 and 6 formed integrally with the planar member 10 at substantially the center between the fixing members 5 and 6, the planar member 10 is gently moved. The holding member 5 is displaced to the holding member 6 side by the impact from the outside of the vehicle,
Breaks under a tensile load.

Here, the collision energy absorbing device 4 using the same fiber having the same breaking strength as the warp yarn 10A is connected to the door panel DP.
And when the outer panel 1 is subjected to an impact force,
The impact energy absorbing device 4 using a combination of fibers having different breaking strengths in the warp 10A is provided in the door panel DP, and the displacement of the outer panel when the outer panel 1 is subjected to an impact force-the breaking load diagram of the planar member. This is shown in FIGS. 5A and 5B. Here, FIG. 5 (A) and FIG.
In (B), the horizontal axis represents the displacement (mm) of the outer panel 1 (one holding member 5), and the vertical axis represents the breaking load (N / m ² ) of the planar member 10. According to FIG. 10, when the fibers having the same breaking strength are used, the outer panel 1
It can be seen that the breaking load is constant with respect to the displacement of the outer panel 1 but the breaking load is divided into two layers with respect to the displacement of the outer panel 1 when fibers having different breaking strengths are used in combination. . The layer with a low breaking load appearing at a small displacement is due to a fiber having a low breaking force, and the layer having a high breaking load appearing at a large displacement side is a fiber having a high breaking strength. That is, it is possible to cope with both high impact energy and low impact energy.

The operation of the first embodiment will be described in order. When an impact force acts on the outer panel 1 and the outer panel 1 is compressed toward the inner panel 2,
One holding member 5 moves in the direction in which the planar member 10 is stretched with respect to the other holding member 6, and the planar member 10 is broken from the state shown in FIG. 4B to the state shown in FIG. I do. Since the planar member 10 is formed of low-drawing fiber and is gently stretched without bending between the one holding member 5 and the other holding member 6, the one holding member 5
It breaks without any time delay for the movement of By breaking, the impact energy is absorbed, and the occupant's living space is secured.

A second embodiment of the present invention will be described with reference to FIG. The collision energy absorbing device 4 according to the second embodiment includes a planar member 10 made of a cloth member as an impact energy absorbing member that absorbs an external impact force, and an absorbing member holding member that holds the planar member 10. Mechanisms 11 and 12
And fixing members 13 and 14 that provide the absorbing member holding mechanisms 11 and 12 at predetermined positions of the vehicle body, that is, the outer panel 1 and the inner panel 2. The absorbing member holding mechanisms 11 and 12 include a U-shaped holding member 12 having two projecting holding portions 12A and 12B for fixing and holding both ends of the planar member 10, and a projecting holding of the U-shaped holding member 12. And a plate-shaped pressing member 11 having a pressing portion 11A directed toward a space 12E between the portions.

Each of the tip portions 12A of the U-shaped holding member 12,
12B is formed in a plate shape corresponding to the planar member 10, and the distal end portions 12A and 12B respectively include the planar member 1
0, one end portion 10C and the other end portion 10D are joined at 12C, 12C.
D is formed. These joints 12C and 12D have
The central part of the planar member 10 similar to that of the first embodiment is connected in a V-shape protruding toward the other fixing member 14 side.
The opposite ends 12F and 12G of the U-shaped holding member 12 and the opposite ends 12A and 12B are joined to the other fixing member 14. Next, the pressing portion 11A at the tip of the plate-shaped pressing member 11
Has a smooth truncated spindle shape, and is capable of breaking the cloth member 10 as appropriate. By pressing the pressing portion 11A at the tip of the plate-like pressing member 11 against the cloth-like member 10, the cloth-like member 1
0 is gently stretched. One fixing member 13 is attached to an end 11B of the plate-shaped pressing member 11 opposite to the end 11A.
Is attached.

Plate-shaped pressing member 11 and U-shaped holding member 12
A and 12B are one and the other provided opposite to predetermined portions of the inner panel 2 and the outer panel 1 so as to be displaced and moved in directions approaching each other in response to an external impact force on the outer panel 1. Two fixing members 13 and 14
, Each of which is separately mounted. One fixing member 13 has a shape conforming to the shape of the outer panel 1 and is joined to the outer panel 1. Therefore, the shape of the one fixing member 13 is changed to the outer panel 1.
It is possible to correspond to the shape of the outer panel 1 of any shape only by deforming according to the shape of the outer panel 1. The other fixing member 14 has a shape conforming to the shape of the inner panel 2 and is joined to the inner panel 2. Therefore, the shape of the other fixing member 14 can be adapted to any shape of the inner panel 2 only by being deformed according to the shape of the inner panel 2.

The operation of the second embodiment will be described step by step. First, when an impact force acts on the outer panel 1 and the outer panel 1 is compressed toward the inner panel 2, the plate-shaped pressing member 11 moves in the direction of the U-shaped holding member 12, and The planar member 1 fixed to the holding member 12
The force acts in the direction of extending 0, and FIG.
The state shown in FIG. 4B is broken to the state shown in FIG.
Since the planar member 10 is formed of low-drawing fiber and is gently stretched without bending in the U-shaped holding member 12, there is no time delay with respect to the movement of the plate-shaped pressing member 11. Break. By breaking, the impact energy is absorbed, and the occupant's living space is secured.

[0026]

According to the first aspect of the present invention, when an impact force is applied from the outside of the vehicle, one of the holding members is displaced toward the other holding member, so that one of the holding members is moved. It moves in the direction in which the planar member is extended with respect to the other holding member. Therefore, the impact energy is absorbed by the breakage of the planar member. Furthermore, since it is formed by the impact energy absorbing member and the absorbing member holding mechanism,
It is small and lightweight, and can be used for various types of vehicles without increasing the weight of the vehicle.

According to the second aspect of the present invention, when an impact force is applied from the outside of the automobile, the planar member is gently stretched without bending between the one holding member and the other holding member. Therefore, the planar member is broken without a time delay with respect to the movement of the one holding member, and the impact energy can be absorbed.

According to the third aspect of the present invention, the tip of each of the one and the other holding members is formed in a plate shape corresponding to the planar member, so that an impact force acts from the outside of the automobile. In addition, the planar member is securely held by the distal ends of the one and other holding members. For this reason, the planar member is broken by the displacement movement of the one holding member, and the impact energy can be effectively absorbed.

According to the fourth aspect of the present invention, when an impact force is applied from the outside of the automobile, the plate-shaped pressing member is displaced and moved to the U-shaped holding member side, and the plate-shaped pressing member is moved to the U-shaped holding member. The impact force can be absorbed by moving in the direction in which the planar member (impact energy absorbing member) whose both ends are fixed to the two projecting holding portions on the member side to break the planar member. Furthermore, since it is formed by the impact energy absorbing member and the absorbing member holding mechanism, it is small and lightweight, and can be used for various kinds of automobiles without increasing the weight of the vehicle.

According to the fifth aspect of the present invention, since the two projecting holding portions of the U-shaped holding member are formed in a plate shape corresponding to the planar member, an impact force acts from outside the automobile. In this case, since the planar member is securely held by the two projecting retaining portions of the U-shaped retaining member, the planar member is broken by the displacement movement of the plate-shaped pressing member toward the U-shaped retaining member. Impact energy can be absorbed.

According to the sixth aspect of the present invention, since the sheet-like member is constituted by a cloth-like member, the cloth-like member is broken by an impact force, so that the impact force can be reliably absorbed.

According to the seventh aspect of the present invention, since the warp forming the connecting direction of the cloth-like member is formed of the low-drawing fiber, an impact force acts from the outside of the automobile, and the absorbing member holding mechanism is displaced. In this case, the cloth member is broken without being stretched, and the impact energy can be absorbed without a time delay.

According to the eighth aspect of the present invention, by using a plurality of fibers having different breaking strengths as the warp forming the connecting direction of the cloth-like member, each of the fibers breaks against a plurality of different impact forces. And can absorb different impact forces.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view of a door panel provided with a collision energy absorbing device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a state before the collision energy absorbing device shown in FIG. 1 is provided on a door panel.

3A and 3B are views showing a cloth-like member of the collision energy absorbing device shown in FIG. 1, wherein FIG. 3A is a perspective view, and FIG. 3B is a cross-sectional view taken along the line AA of FIG. 3 (C) is a sectional view taken along line BB of FIG. 3 (A), and FIG. 3 (D) is a partial sectional view showing a modification of FIG.

FIG. 4 is a view showing details of the collision energy absorbing device shown in FIG. 1; FIG. 4 (A) is an explanatory view showing an attached state;
FIG. 4B is an explanatory view showing a state in which a tensile force is applied to the planar member, and FIG. 4C is an explanatory view showing a state in which the planar member is broken.

5 is a diagram showing the displacement of the outer panel when an impact force is applied to the outer panel in FIG. 1 versus the breaking load of the planar member. FIG. 5 (A) shows the breaking strength of the planar member of the collision energy absorbing device. Diagram showing the case where the same fiber is used, FIG.
(B) is a diagram showing a case where fibers having different breaking strengths are used for the planar member of the collision energy absorbing device.

FIG. 6 is a front view showing a second embodiment of the present invention.

7 (A) is an exploded perspective view, FIG. 7 (B) is a longitudinal sectional side view of FIG. 7 (A), and FIG. 7 (C) is a view showing a door portion of an automobile according to a conventional example. It is a vertical side view of the door panel provided with the collision energy absorption device which concerns on the door panel of the door of 7 (A) of a conventional example.

8A and 8B are explanatory views showing another conventional example. FIG. 8A is a perspective view of a collision energy absorbing device using a honeycomb structure resin, and FIG. 8B is deformed by applying a load to FIG. 8A. FIG.

9 (A) is a perspective view showing a collision energy absorbing device using a urethane home according to a conventional example, and FIG. 9 (B) shows a state in which a load acts on FIG. 9 (A) and deformed. FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Outer panel 2 Inner panel 3 Side door beam 4 Collision energy absorbing device 5,11 One holding member 6,12 The other holding member 10 Planar member (cloth member) as impact energy absorbing member 7,13 One fixing member 8,14 The other fixing member

Claims (8)

[Claims] 1. An impact energy absorbing device comprising an impact energy absorbing member for absorbing an external impact force and an absorbing member holding mechanism for holding the impact energy absorbing member, the impact energy absorbing device being mounted on a predetermined portion of a vehicle body such as an automobile. In the above, the impact energy absorbing member is formed of a planar member, and the absorbing member retaining mechanism for retaining the planar member includes a holding member for holding one end of the planar member at a distal end thereof and the surface. The other end of the shaped member is held by the other end of the vehicle body, and each of the holding members is displaced and moved in a direction approaching each other in response to an external impact force. The two holding members, one and the other, provided opposite to each other, are separately fixed and mounted, and the holding members on the other side are not contacted with the tips of the holding members, respectively. Collision energy absorbing device, characterized in that projecting from toward the stationary member side of the mating than the tip portion. 2. A collision energy absorbing device, comprising: an impact energy absorbing member for absorbing an external impact force; and an absorbing member holding mechanism for holding the impact energy absorbing member. In the above, the impact energy absorbing member is formed of a planar member, and the absorbing member retaining mechanism for retaining the planar member includes a holding member for holding one end of the planar member at a distal end thereof and the surface. The other end of the shaped member is held by the other end of the vehicle body, and each of the holding members is displaced and moved in a direction approaching each other in response to an external impact force. The two fixed members, one and the other, provided opposite to each other, are separately fixed and mounted, and the distal ends of the holding members are not in contact with each other and are fixed to the respective fixed members. Collision energy absorbing device, characterized in that arranged respectively substantially at the center between. 3. The collision energy absorbing device according to claim 1, wherein a tip end of each of the one and other holding members is formed in a plate shape corresponding to the planar member. 4. An impact energy absorbing device comprising an impact energy absorbing member for absorbing an external impact force and an absorbing member holding mechanism for holding the impact energy absorbing member, the impact energy absorbing device being mounted on a predetermined portion of a vehicle body such as an automobile. In the above, the impact energy absorbing member is formed of a planar member, and the absorbing member retaining mechanism has a U-shaped retaining member including two protruding retaining portions for fixing and retaining both ends of the planar member, A plate-shaped pressing member provided with a pressing portion directed to a space between the protruding holding portions of the U-shaped holding member, wherein the U-shaped holding member and the plate-shaped pressing member are externally impacted. A collision device, which is separately mounted on one and the other two fixing members opposed to a predetermined portion of the vehicle body so as to be displaced and moved in a direction approaching each other with respect to a force. Nerve absorber. 5. The collision energy absorbing device according to claim 4, wherein the two projecting holding portions of the U-shaped holding member are formed in a plate shape corresponding to the planar member. 6. The collision energy absorbing device according to claim 1, wherein said planar member is formed of a cloth member. 7. A warp forming a connection direction of the cloth-like member,
The impact energy absorbing device according to claim 6, wherein the impact energy absorbing device is formed of low drawn fiber. 8. The collision energy absorbing device according to claim 6, wherein a plurality of fibers having different breaking strengths are used as the warps forming the connection direction of the cloth member.