JPH1159302A - Shock absorber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely absorb the impact at the collision with a simple structure without increasing a number of pieces of components and without increasing man-hours, by holding the neighborhood of a connecting part of a protective material or an absorbing material with a rigid material at a car body side in such a manner that it can be removable by the impact force in the longitudinal direction of the car body. SOLUTION: One edge part of a protective material 3 is fixed to a rear edge of a panel-shaped rigid material 2 which is fixed to a pipe 1 forming a car body frame. Further the other edge part of the protective material 3 is connected with one edge part of an absorber 4. The other edge part of this absorber is fixed to the rigid material 5 fixed to the pipe 1. The impact force from an occupant, is transmitted to the protective material 3 through an interior material 7 when the impact is generated, a projection piece 3a is removed from a bracket 6, and the protective material 3 and the absorber 4 absorb the impact. On this occasion, the absorber 4 is deformed into a desired shape in a condition that a deforming direction of the absorber 4 is controlled by the protective material 3 without separately mounting a guide member, an attitude control member or the like, because one edge part of the protective material 3 is fixed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shock absorbing device for absorbing a shock to protect a passenger's knee during a collision.

[0002]

2. Description of the Related Art Conventionally, in order to protect a passenger's knee when an impact such as a car collision occurs, an impact absorbing device is provided, for example, inside a vehicle interior material (for example, Japanese Utility Model Publication No. 61-36333). Reference).

[0003] Such a shock absorbing device is provided with a protective material which comes into contact with the occupant's knee directly or through an interior material, and extends in the front-rear direction and is interposed between the vehicle-body-side rigid material and the protective material. And an absorber that supports the protective material and absorbs shock while deforming in the front-rear direction.

[0004]

However, the force applied to the protective material from the occupant is not exactly in the front-rear direction,
May occur at an angle. For example, when the absorbing material is a plate or box-shaped member extending in the front-rear direction, for example, instead of buckling deformation as a whole, only the bent portion is locally deformed, so that the plate falls down, or the box is Because it is considered that the impact cannot be absorbed properly due to deformation so as to collapse into a parallelogram, the number of parts and work man-hours increase, such as the need for a separate guide member and a member to control the attitude of the absorbing member, and the weight increases. I tended to.

The present invention has been devised to solve the above-mentioned problems of the prior art, and has a simple structure, without increasing the number of parts and the number of working steps, and reliably and properly. It is an object of the present invention to provide a shock absorbing device capable of absorbing a shock such as the above.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a shock absorbing device provided inside an interior material with which a passenger's knee comes in contact when a vehicle impact occurs, wherein the width of the vehicle body is reduced. One end is fixed to the vehicle body-side rigid material, and a protective material that can be deformed in the front-rear direction from the middle part to the other end side, and partially or entirely obliquely in the front-rear direction of the vehicle body An end which is connected to the other end of the protection member, and the other end is fixed to the vehicle body-side rigid member, and has an absorbent which can bend in the front-rear direction of the vehicle body. The shock absorbing device is characterized in that the material is held by a vehicle-body-side rigid material in the vicinity of a connecting portion thereof so as to be detachable by a front-back direction impact force of the vehicle body.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a main part structure of a vehicle in which a shock absorbing device for a front passenger seat to which the present invention is applied is seen from a passenger compartment side, and FIG. 2 is a perspective view of the shock absorbing device. It is a top view which shows a structure simply. At the rear end of a panel-shaped rigid member 2 fixed to a pipe 1 forming a body frame at the right end of the body, one end of a substantially strip-shaped protection member 3 extending in the width direction of the body is fixed. . The other end of the protective member 3 is connected to one end of an absorbing member 4 extending partly obliquely in the front-rear direction of the vehicle body by a bolt. The other end of the absorbing member 4 is fixed to a substantially semi-cylindrical rigid member 5 fixed to the pipe 1. Here, when an impact occurs in the front-rear direction, the absorbent 4 absorbs the impact while deforming to form an S shape from the obliquely extending intermediate portion 4a. In addition, the protective material 3 absorbs an impact together with the absorbing material 4 while bending along with the deformation of the absorbing material 4 from the intermediate portion to the other end. Protective material 3 and absorbent material 4
Appropriate concave portions or bent portions are formed so that necessary rigidity can be obtained.

At the other end of the protective member 3, a projecting piece 3a having a slit 3b is provided. This protruding piece 3a
Is engaged with and held by a bracket 6 as a vehicle body-side rigid material with a slit 3b so as to be detachable by a predetermined impact force in the vehicle body front-rear direction.

The front surface of the protective material 3, that is, the surface facing the occupant's knee is covered with an interior material 7 having a certain amount of cushion. The impact with the protective material 3 is reduced, and the impact is also absorbed to some extent.

The operation of this embodiment will be described below. First, when an impact occurs, the impact force from the occupant is transmitted to the protective material 3 via the interior material 7, and if the force is greater than a predetermined impact force at which shock absorption should be started, the protruding piece 3 a separates from the bracket 6. The protective material 3 and the absorbing material 4 absorb the impact while gradually deforming (FIG. 3). At this time, since one end of the protective material 3 is fixed, the absorbing material 4 can be formed into a desired shape while the deformation direction is controlled by the protective material 3 without separately providing a guide member or a posture control member. Deform.

In the above embodiment, the projecting piece 3 of the protective material 3 is used.
Although the a bracket 6 is engaged and held so as to be detachable by a predetermined impact force, the absorbent member 4 may be engaged and held so that it can be detached from the rigid material on the vehicle body side by a predetermined impact force. Needless to say.

[0013]

As is apparent from the above description, according to the shock absorbing device of the present invention, it extends in the width direction of the vehicle body,
One end portion of the protective member fixed to the vehicle body-side rigid material is partially or entirely obliquely extended substantially in the front-rear direction of the vehicle body, and one end portion is fixed to the vehicle body-side rigid material. Connected to the other end of the material, near the connection of the protective material or absorbent material,
By holding the vehicle body side rigid material so that it can be detached by the impact force in the front-rear direction of the vehicle body, the deformation direction of the absorbing material can be controlled by the protective material without providing a separate guide member or attitude control member. Since it is deformed into a desired shape, it is possible to reliably and properly absorb an impact at the time of collision or the like without increasing the number of parts and the number of work steps.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main structure of a vehicle in which a passenger seat impact absorbing device to which the present invention is applied is seen through from a passenger compartment side.

FIG. 2 is a plan view schematically showing the configuration of the shock absorbing device.

FIG. 3 is a diagram for explaining the operation of the shock absorbing device to which the present invention is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pipe 2 Rigid material 3 Protective material 3a Projection piece 3b Slit 4 Absorbent material 4a Intermediate part 5 Rigid material 6 Bracket 7 Interior material

Claims (1)

[Claims] 1. A shock absorbing device provided inside an interior material with which a passenger's knee is in contact when a vehicle impact occurs, wherein the shock absorbing device extends in a width direction of a vehicle body, and one end thereof is fixed to a vehicle body side rigid material. And a protective material that is deformable in the front-rear direction from the middle part to the other end side, and extends partly or entirely obliquely in the substantially front-rear direction of the vehicle body, one end of which is fixed to the vehicle body-side rigid material, and The other end is connected to the other end of the protection member, and has an absorbing material that can bend in the front-back direction of the vehicle body. An impact absorbing device characterized in that the impact absorbing device is held by a vehicle-body-side rigid material so that the impact absorbing device can be detached.