JPH09323602A - Rear side impact absorbing device of automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the protruding of the rear part of an automobile into the interior side and transmission of impact force to enhance the safety of an occupant by fitting an inner shaft to an outer shaft in such a manner as to be slidable, arranging them in the direction orthogonal to the longitudinal direction of the automobile, and interposing a spring between the inner shaft and the outer shaft. SOLUTION: Lateral quarter inner panels 2 are connected to a quarter outer panel 1, and support bodies 3a, 3b are fixed thereto. The support bodies 3a, 3b have support bars 4a, 4b as connecting members, and an inner shaft 5a and an outer shaft 5b are supported by the support bars 4a, 4b, respectively, through support pins 6, and arranged orthogonally to the longitudinal direction of an automobile. The tip of the inner shaft 5a is fitted into the outer shaft 5b in such a manner as to be slidable, and a spring 7 is interposed between the inner shaft 5a and the outer shaft 5b. Thus, an impact force is absorbed stepwise to reduce the impact to an occupant, and the protruding of the rear part into the interior can be suppressed to enhance the safety.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear side impact absorbing device for an automobile, which absorbs the impact when the rear side of the automobile is impacted by a collision accident of the automobile.

[0002]

2. Description of the Related Art As is well known, a package tray panel is provided between quarter inner panels at a rear portion of a rear door of an automobile, especially a notch-back type passenger vehicle, and a rear seat is provided in front of the package tray panel. .

[0003]

However, in the structure of the conventional automobile as described above, when an impact force is applied to the side surface of the rear portion of the automobile in the case of a side collision, the quarter panel is deformed and the interior of the room is deformed. And the impact force was transmitted to the passengers in the rear seat, and the injury value and the risk of the passenger in the rear seat became great, and there was a problem in safety.

The present invention has been made in order to solve the above problems, and its object is to suppress the penetration of the rear part of the vehicle into the room and the transmission of the impact force in the case of a side collision of the vehicle. SUMMARY OF THE INVENTION It is an object of the present invention to provide a rear side impact absorbing device for a vehicle, which is improved in passenger safety.

In order to achieve the above-mentioned object, a rear side impact absorbing device for a vehicle according to claim 1 of the present invention connects a support to left and right symmetrical positions of the left and right quarter inner panels in a trunk, and also supports the support. The inner shaft is supported on one side and the outer shaft is supported on the other side, and the inner shaft is slidably fitted into the outer shaft, and the inner shaft and the outer shaft are arranged in a direction orthogonal to the longitudinal direction of the vehicle. It is characterized in that a spring is interposed between the two.

According to a second aspect of the present invention, there is provided a rear side impact absorbing device for an automobile, wherein the supporting member is provided with a connecting member, and the connecting member is provided with the inner shaft and the outer shaft. Characterize.

According to a third aspect of the present invention, there is provided a rear side impact absorbing device for a vehicle, wherein the connecting member is a buffer connecting member having a buffer function.

According to a fourth aspect of the present invention, there is provided a rear side impact absorbing device for a vehicle, wherein the buffer connecting member is an arc-shaped support bar. Further, a rear side impact absorbing device for an automobile according to a fifth aspect of the present invention is characterized in that the spring is provided inside the outer shaft.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail below with reference to the accompanying drawings. 1 is a schematic side view of an automobile for explaining an embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is a sectional view taken along the line BB of FIG.

In the figure, the left and right quarter inner panels 2 and 2 connected to the quarter out panel 1 are fixed to the support bodies 3a and 3b located in the trunk behind the package tray panel 8 by means such as welding. Let The support bars 3a and 3b are connected to the support bars 4a and 4b as connecting members.
The inner shaft 5a is supported on one of the support bars 4a and 4b by the support pins 6 and 6, and the outer shaft 5b is supported on the other by the support pins 6 and 6. The tip of the inner shaft 5a is slidably fitted in the outer shaft 5b, and a spring 7 is interposed between the inner shaft 5a and the outer shaft 5b.

The inner shaft 5a and the outer shaft 5b are
Although it may be provided directly on the supports 3a and 3b, a connecting member may be interposed. In particular, it is particularly preferable that the connecting members are arc-shaped support bars 4a and 4b as shown in the drawing, because the deformation of the support bars 4a and 4b has a shock absorbing function of absorbing shock.

Although the spring 7 need not be provided inside the outer shaft 5b as shown in the figure, the spring 7 does not get out of the outer shaft 5b, so that there is an advantage that the spring 7 does not get in the way and can be made compact. In the drawings, reference numeral 9 is a rear floor panel, and 10 is a rear seat.

However, when the impact force is applied to the quarter-out panel 1 at the rear portion of the rear door due to a side collision or the like,
First, the impact force is absorbed by the quarter inner panel 2 and the package tray panel 8, and the impact force is transmitted to the inner shaft 5a and the outer shaft 5b via the supports 3a and 3b fixed to the quarter inner panel 2. At this time, the inner shaft 5a is slidably fitted into the outer shaft 5b, and the spring 7 is interposed between the inner shaft 5a and the outer shaft 5b. The transmitted impact force is impacted (damped) by the spring 7,
The impact force is absorbed stepwise, the impact on the passenger is reduced, and the quarter inner panel 2 is suppressed from entering the room.

Moreover, the support bar 4 in which the connecting member has an arc shape.
With a and 4b, the shock force is deformed and buffered, so that it acts as a buffer connecting member, and the shock force is further attenuated. The buffer connecting member is not limited to the support bar.

As described in detail above, according to the present invention, the inner and outer shafts, which are supported by the support bodies, are disposed on the quarter inner panel in the trunk behind the package tray panel, and the spring is provided therebetween. Because of the interposition, when the rear side of the rear door of a car receives an impact due to a collision, etc., the impact force is gradually absorbed to reduce the impact on passengers, and the inner panel of the quarter inner panel Since the invasion is suppressed, there is an excellent effect that the risk and injury value of the passenger in the rear seat are reduced and the safety is increased (claims 1 and 2).

If the connecting member has a cushioning function, the impact force is further damped (claim 3).

If the buffer connecting member is an arc-shaped support bar, the buffer connecting member is deformed by buffering and the impact force is further reduced. (Claim 4).

Further, when the spring is provided inside the outer shaft, it can be made unobtrusive and compact (claim 5).

[Brief description of drawings]

FIG. 1 is a schematic side view of an automobile for explaining an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 2;

[Explanation of symbols]

 1 Quarter Out Panel 2 Quarter Inner Panel 3a, 3b Support 4a, 4b Support Bar 5a Inner Shaft 5b Outer Shaft 7 Spring

Claims (5)

[Claims] 1. A support body is coupled to left and right symmetrical positions of left and right quarter inner panels in a trunk, and one of the support bodies supports an inner shaft and the other supports an outer shaft to slide the inner shaft on the outer shaft. A rear side impact absorbing device for a vehicle, which is movably fitted and arranged in a direction orthogonal to a front-back direction of the vehicle, and a spring is interposed between the inner shaft and the outer shaft. 2. The rear side impact absorbing device for an automobile according to claim 1, wherein the supporting member is provided with a connecting member, and the connecting member is provided with the inner shaft and the outer shaft. 3. The rear side impact absorbing device for an automobile according to claim 2, wherein the connecting member is a buffer connecting member having a buffer function. 4. The rear side impact absorbing device for an automobile according to claim 3, wherein the buffer connecting member is an arc-shaped support bar. 5. The rear side impact absorbing device for an automobile according to claim 1, 2, 3 or 4, wherein the spring is provided inside an outer shaft.