JPH09286263A - Rotating seat for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automobile rotating seat that is able to effectively secure the extent of belt anchor strength in a simple method. SOLUTION: A seat body is securely supported on a rotating part supported on a base part free of rotation, while a belt anchor fulcrum 12 of a seat belt is set up in a proper spot at the rotating part side. A pair of hooks 13 and 14 being engageable with each other so as to be set up in space between the rotating part and the base part are installed there. With engagement between these hooks 13 and 14, this seat body is made so as to be resistible to any load F from the seat belt in the belt anchor fulcrum 12. The hook 13 on one side is hung down from the rotating part side and simultaneously the hook 14 on the other is erected from a base side of the base part, and thereby these hooks 13 and 14 are set up by means of letting them have a fixed range of play therein.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary seat for an automobile in which a seat-equipped inner belt is set in a vehicle such as a passenger car.

[0002]

2. Description of the Related Art FIGS. 3 and 4 show an example of the construction of a conventional rotary seat for an automobile of this type, in particular, its supporting structure. In this example, a seat body 100 including a seat cushion 100a and a seat back 100b can rotate on the floor 1 supporting the seat body 100. The rotation / support mechanism of the seat body 100 includes a rotating portion and a base portion.

The rotating part has a support plate 2 and a frame 3 standing upright on both sides of the support plate 2. The base portion has a base plate 4, and the support plate 2 is rotatably supported via a bearing portion 5. Further, the bearing portion 5 is arranged and arranged substantially at the center of the base plate 4. That is, the bearing portion 5 is provided with an annular retainer 6 around the rotation axis O in the central portion of the base plate 4, and supports the support plate 2 via the bearing balls 7. Retainer 6
A cover 8 is attached to the lower side of the support plate 2 so as to cover the outer side of the end of the. In this way, the seat body 100 is supported by the rotating portion rotatably supported on the base portion.

Further, sliders 9 are fixed along both sides of the base plate 4. This slider 9
It is slidably mounted on a slide guide 10 fixedly installed on the floor 1, and therefore, the entire rotating portion and the base portion are supported so as to be slidable along the slide guide 10. That is, in this example, the seat body 100 is rotatable about the rotation axis O and is movable back and forth along the slide guide 10, for example.

By the way, in a conventional rotary seat for an automobile, as shown in FIG. 3, a belt anchor 11 of a seat belt (not shown) is attached to the seat body 100 side. In this case, the belt anchor fulcrum 12 of the belt anchor 11 is set at an appropriate position on the rotating portion side, that is, near the end of the frame body 3. A load F (FIG. 4) generated by pulling the seat belt acts on the fulcrum 12.

[0006]

However, in the conventional rotary seat for an automobile, as is clear from FIG. 4, the vicinity of the bearing portion 5 connecting the rotary portion and the base portion, that is, particularly between the rotary portion and the base portion is tightened. Joining part P for fixing
Is set to be offset from the base portion (slider 9) of the base plate 4 which finally receives the load F from the seat belt (set as an offset amount L). That is, when the load F is received, the load is indirectly transmitted in such a manner that it temporarily passes through the offset joint portion P in the vicinity of the bearing portion 5 and wraps around such a portion.

Therefore, in order to obtain a predetermined belt anchor strength to counter the load F, the plate thickness or material of the constituent members of the rotating portion and the base portion must be used. That is, while preventing excessive deformation of these constituent members,
In order to secure an appropriate belt anchor strength, it has been necessary to take measures such as increasing the plate thickness of each constituent member or selecting and using a highly rigid material.

In view of the above points, an object of the present invention is to provide a rotary seat for an automobile capable of effectively securing the belt anchor strength by a simple method.

[0009]

According to another aspect of the present invention, there is provided a rotating seat for an automobile, in which a seat body is fixedly supported by a rotating portion rotatably supported on a base portion, and a belt of a seat belt is provided at an appropriate position on the rotating portion side. A rotary seat for an automobile, in which an anchor fulcrum is set, wherein a pair of mutually engageable hooks are attached so as to be arranged between the rotary portion and the base portion, and the hooks are engaged with each other. The load from the seat belt at the belt anchor fulcrum can be opposed.

In the automobile rotary seat of the present invention, preferably, one hook hangs down from the rotary part side, and the other hook stands upright from the base part side of the base part.
These hooks are arranged with a certain amount of play.

In the automobile rotary seat of the present invention, preferably, the pair of hooks are arranged along an extension line connecting the belt anchor fulcrum and the base of the base.

According to the present invention, a pair of hooks engageable with each other is preferably provided between the belt anchor fulcrum and the base portion of the base portion. Therefore, when the load from the seat belt acts on the belt anchor fulcrum, the engagement of these hooks can directly counter the load. This makes it possible to secure a predetermined belt anchor strength without imposing an unreasonable load on the constituent members of the rotating portion and the base portion.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of an automotive rotary seat of the present invention will be described below with reference to FIGS. 1 and 2 by using substantially the same or corresponding members with the same reference numerals as in the conventional example. To do.

The basic structure of the automobile rotary seat in this embodiment is substantially the same as the conventional example described above. That is, the seat body 100 is rotatably supported on the floor 1 by a rotation / support mechanism including a rotating portion and a base portion. The rotating part has a support plate 2 and a frame body 3. This rotating portion is supported rotatably around the rotation axis O on the base portion via the bearing portion 5. Further, a belt anchor fulcrum 12 of the belt anchor 11 is set near the end of the frame body 3. A load F generated by the tensile force of the seat belt acts on the fulcrum 12.

FIG. 1 shows an example of the essential structure of the present invention. In FIG. 1, a pair of mutually engageable hooks 13 and 14 are provided so as to be arranged between the belt anchor fulcrum 12 and the base portion (slider 9) of the base portion. The upper hook 13 is preferably fixed to the frame body 3 at a position close to the belt anchor fulcrum 12 and is hung from the rotating portion side to the base portion side as shown in the drawing. Further, the lower hook 14 is preferably erected from the base portion of the base portion, that is, the joint portion of the base plate 4 and the slider 9 so as to correspond to the hook 13. More specifically, these hooks 13 and 14 are
It can be arranged along an extension line connecting the belt anchor fulcrum 12 and the base portion of the base portion.

The hooks 13 and 14 have key-shaped engaging portions 13a and 14a as shown in FIG. 2 by bending and forming a material piece made of a thin steel plate or the like. These hooks 13,
When attaching 14 to the rotating part and the base part respectively,
The engaging portions 13a and 14a are arranged so as to have a certain amount of play. That is, when the load F from the seat belt is not acting on the belt anchor fulcrum 12, an appropriate gap is set between the engaging portions 13a and 14a as shown in FIG. 1, that is, the hooks 13 and 14 are engaged with each other. It is supposed not to.

In the automobile rotary seat of the present invention, the seat body 1 is attached to the rotary portion rotatably supported on the base portion.
00 is fixedly supported. As a result, in the normal state, the orientation of the seat body 100 on the floor 1 can be appropriately changed.

On the other hand, when the load F acts on the belt anchor fulcrum 12 from the seat belt, the hook 13 is pulled up, so that the engaging portion 13a of the hook 13 is located at the hook 1 of the hook 14.
4a. Since the load F is directly carried by the engagement of the hooks 13 and 14 in this way, a predetermined belt anchor strength can be effectively secured without applying an unreasonable load to the constituent members of the rotating portion and the base portion. can do.

[0019]

As described above, according to the present invention, a necessary and sufficient belt anchor strength can be obtained by a simple structure in which a hook is simply added while substantially maintaining the basic structure of this type of rotary seat. Can be secured.
In this case, a predetermined strength can be obtained even if the plate thickness or material of the constituent member is not required as in the conventional case, so that there is an advantage that a substantial cost reduction can be achieved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a configuration example of a main part in an embodiment of an automobile rotary seat of the present invention.

FIG. 2 is a perspective view showing a configuration example of a hook according to the present invention.

FIG. 3 is a perspective view showing a configuration example of a conventional automobile rotary seat.

FIG. 4 is a cross-sectional view showing a configuration example of a main part of a conventional automobile rotary seat.

[Explanation of symbols]

 1 floor 2 support plate 3 frame 4 base plate 5 bearing 6 retainer 7 bearing ball 8 cover 9 slider 10 slide guide 11 belt anchor 12 belt anchor fulcrum 13,14 hook 100 seat body 100a seat cushion 100b seat back

Claims (3)

[Claims] 1. A rotary seat for an automobile, in which a seat body is fixedly supported on a rotary part rotatably supported on a base part, and a belt anchor fulcrum of a seat belt is set on the rotary part side. A pair of mutually engageable hooks is attached so as to be arranged between the rotating portion and the base portion, and the engagement of these hooks can counter the load from the seat belt at the belt anchor fulcrum. A rotating seat for an automobile characterized by the above. 2. One hook is hung from the rotating portion side, the other hook is erected from the base portion side of the base portion, and these hooks are arranged with a certain amount of play. The rotating seat for an automobile according to claim 1, wherein the rotating seat is an automobile. 3. The rotary seat for an automobile according to claim 1, wherein the pair of hooks are arranged along an extension line connecting the belt anchor fulcrum and the base portion of the base portion.