JPH06144155A - Seat belt fitting structure for rear seat of automobile - Google Patents

Abstract

PURPOSE:To prevent buckling and stress concentration caused by an excessive load applied to the fitting section of the storage container of a seat belt. CONSTITUTION:The storage container 18 of a seat belt is fitted to an upper back 14 arranged behind the rear seat of an automobile and having a rigid member 10' folded with a plate material to close a vertical cross section and extended in the lateral direction of a car body, and a reinforcing member 20 is provided on it. The reinforcing member 20 is made of a flat plate, and it is connected to the fitting section 23 of the storage container 18 to the upper back 14 and the rigid member 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seatbelt mounting structure for a rear seat of an automobile, and more particularly to a retractor for accommodating a seatbelt which can be retracted, that is, an accommodating container, which is disposed at the rear of the rear seat of the automobile. Regarding the structure to be attached to.

[0002]

2. Description of the Related Art It has been proposed that a retractor or a storage container for storing a seat belt of a rear seat of an automobile is attached to an upper back panel which is located behind the rear seat and which connects left and right quarter panels. Kaihei 2-105060 publication).

[0003]

When the seatbelt exerts its function, an excessive load is applied to the mounting portion of the seatbelt storage container. Therefore, in the above-mentioned proposal, there is a problem that the thickness of the panel to which the storage container is attached must be increased, which increases the weight.

It is an object of the present invention to provide a rear seat mounting structure for an automobile which can withstand an excessive load applied to the mounting portion of the storage container without increasing the thickness of the entire panel.

[0005]

DISCLOSURE OF THE INVENTION The present invention has an upper back which is provided behind a rear seat of an automobile and which has a rigid member formed by bending a plate material so that its vertical cross section is closed and extending in the lateral direction of the vehicle body. A structure for attaching a storage container for a seat belt to the upper back of the storage container and the rigid member, and a reinforcing member connected to the mounting member and the rigid member. Prepare

In a preferred mode, the reinforcing member is formed of a flat plate, and the rigidity of the end portion of the reinforcing member coupled to the mounting portion is higher than the rigidity of other portions.

[0007]

[Operation and Effect] The load applied from the seat belt to the mounting portion of the storage container is transmitted to the rigid member via the reinforcing member and is dispersed. Since the rigid member is formed by bending a plate material so that the vertical cross section is closed, its rigidity is sufficiently high. As a result, it is not necessary to increase the plate thickness of the entire panel, and the weight can be reduced.

According to a preferred embodiment, the reinforcing member is made of a flat plate, but since the rigidity of the end portion coupled to the mounting portion of the storage container to the upper back is higher than the rigidity of the other portions, the mounting rigidity of the reinforcing member is high. It is high and the strength of the mounting part can be secured.
On the other hand, since the rigidity of the portion of the reinforcing member excluding the end portion is low, the reinforcing member can bend in accordance with the bending of the upper back. Thereby, stress concentration that may occur when increasing the rigidity of the entire reinforcing member can be avoided.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention, as shown in FIGS. 1 to 3, has a rigid member 10 extending in the lateral direction of a vehicle body, an upper back 14 arranged behind a rear seat 12 of a vehicle, and a seat belt 16 provided therein. A structure for attaching a container 18 for accommodating is provided with a reinforcing member 20.

The upper back 14 has a panel 22 in addition to the rigid member 10. The rear portion 25 of the panel 22 is bent so as to form a recess, and the plate member 24 is bent so as to bulge upward.
The panel 22 and the plate member 24 are spot welded to each other to form the rigid member 10 whose vertical cross section is closed.
The panel 22 and the rigid member 10 extend in the lateral direction of the vehicle body and are connected to the quarter panel 26.

The seat belt 16 and the retractor or storage container 18 that stores the seat belt 16 in a retractable manner are known per se. The storage container 18 has a bracket 19 and is attached to the upper back 14 by the bracket 19.

The reinforcing member 20 extends between the mounting member 23 of the storage container 18 to the upper back 14 and the rigid member 10 and is connected to the mounting member 23 and the rigid member 10.

In the illustrated embodiment, the reinforcing member 20 is a flat plate having a substantially rectangular plan shape and a thickness larger than the thickness of the panel 22, and is joined to the mounting portion 23 of the storage container 18 to the upper back 14. The rigidity of the end portion 21 formed is higher than the rigidity of other portions. The end portion 21 of the reinforcing member has a shape in which the front edge portion and the left and right edge portions of the front portion of the flat plate are bent downward. On the other hand, the mounting portion 23 of the upper back 14 is attached to the panel 2 of the upper back 14.
It is the second part.

The bracket 19 of the storage container 18 is attached to the panel 2
2 to the upper surface of the mounting portion 23, the end portion 21 of the reinforcing member 20 to the lower surface of the mounting portion 23, the bracket 19,
The bolt 28 is passed through the mounting portion 23 and the end portion 21, and the nut 30 is screwed into the bolt 28 and tightened to secure the storage container 18
Is attached to the panel 22, and the reinforcing member 20 is joined to the attachment portion 23. Prior to or after joining the reinforcing member 20 to the mounting portion 23, the rear end of the reinforcing member 20 is spot-welded to the rigid member 10 to join the reinforcing member 20 to the rigid member 10. Put the storage container 18 into the package tray 3
Cover with 2 and use.

When the seat belt 16 exhibits its function, a large tensile load is applied to the mounting portion 23 of the upper back 14. The load is transmitted from the mounting portion 23 to the panel 22, and at the same time, transmitted to the rigid member 10 via the reinforcing member 20 and dispersed.

In general, since the seat belt 16 in the rear seat is pulled obliquely upward, the panel 22 made of a thin plate material bends, and the reinforcing member 20 receives a force to lift it. If the rigidity of the reinforcing member 20 is increased as a whole, the reinforcing member 20 cannot bend, so that the force of lifting the reinforcing member 20 is applied to the joint between the reinforcing member 20 and the rigid member 10. , Stress concentration occurs at this joint. However, as in the illustrated embodiment, if the rigidity of only the portion of the reinforcing member 20 coupled to the mounting portion 23 is increased,
Other parts can be combined with panel 22,
Stress concentration can be avoided.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a seat belt mounting structure for a rear seat of an automobile according to the present invention.

FIG. 2 is a perspective view showing a portion of an automobile including a seat belt mounting structure for a rear seat of the automobile according to the present invention.

FIG. 3 is a cross-sectional view showing the vicinity of the storage container shown in FIG.

[Explanation of symbols]

 10 Rigid Member 12 Rear Seat 14 Upper Back 16 Seat Belt 18 Storage Container 20 Reinforcement Member 22 Panel

Claims (2)

[Claims] 1. A seatbelt storage container is attached to an upper back arranged rearward of a rear seat of an automobile, which has a rigid member formed by bending a plate material so as to close a vertical cross section and extending in a lateral direction of a vehicle body. A seat for a rear seat of a vehicle having a structure, which includes a reinforcing member that is interposed between a mounting portion of the storage container to the upper back and the rigid member and that is coupled to the mounting portion and the rigid member. Belt mounting structure. 2. The seat belt of the rear seat of the automobile according to claim 1, wherein the reinforcing member is formed of a flat plate, and the rigidity of the end portion of the reinforcing member coupled to the mounting portion is higher than the rigidity of other portions. Mounting structure.