AIRBAG MODULE-MOUNTING SIDE FRAME AND VEHICLE SEAT PROVIDED WITH SAME

• US 20150291121A1
• Filed: 10/30/2013
• Published: 10/15/2015
• Est. Priority Date: 10/31/2012
• Status: Active Grant

• Current Assignee: TS Tech Company Limited
• Original Assignee: TS Tech Company Limited
• Inventors: Tanabe, Jinichi
• Granted Patent: US 9,545,891 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60N 2/64 Back-rests or cushions B60N2/2222 takes precedence
• CPC Class Codes: B60N 2/68 Seat frames
• CPC Class Codes: B60N 2/682 Joining means
• CPC Class Codes: B60R 21/207 in vehicle seats

Abstract

Provided is an airbag module-mounting side frame configured to be attachable an airbag with high rigidity and efficiently even when an airbag attachment portion has a closed cross-sectional structure. A side frame which forms a seat and on which an airbag module is mounted is provided. A portion of the side frame to which the airbag module is attached has a closed cross-sectional structure. An attachment member that connects the airbag module and the side frame is disposed to connect an inner wall surface of the closed cross-sectional structure arranged on an outer side of the seat and an inner wall surface of the closed cross-sectional structure arranged on an inner side of the seat.

Claims

1. An airbag module-mounting side frame which forms a seat and on which an airbag module is mounted, comprising:

an attachment portion of the side frame to which the airbag module is attached, the attachment portion comprising a closed cross-sectional structure; and

an attachment member that connects the airbag module and the side frame disposed to connect an inner wall surface of the closed cross-sectional structure arranged on an outer side of the seat and an inner wall surface of the closed cross-sectional structure arranged on an inner side of the seat.

4. The airbag module-mounting side frame according to claim 1, wherein:

the side frame forms the closed cross-sectional structure by combining frame members separated in a plurality of frames in a width direction of the seat or a front to back direction of the seat, and the plurality of frame members are detachable.

5. The airbag module-mounting side frame according to claim 4, wherein:

the plurality of frame members are separated in the width direction of the seat; and

the frame members are connected at at least two positions with an attachment position of the airbag module to the side frame interposed in the front to back direction.

6. The airbag module-mounting side frame according to claim 4, wherein:

the plurality of frame members are bonded in an attachment force direction following an application direction of attachment force when the airbag module is attached to the side frame.

7. The airbag module-mounting side frame according to claim 1, wherein:

the attachment member is accommodated in the closed cross-sectional structure of the side frame.

8. The airbag module-mounting side frame according to claim 7, wherein:

a hole is formed at a position of the side frame facing the attachment member.

9. The airbag module-mounting side frame according to claim 1, wherein:

the attachment member includes at least a first attachment member and a second attachment member;

the first attachment member is attached to extend from the airbag module and the second attachment member is attached to extend from a side opposite to the attachment position of the airbag module to the side frame with the closed cross-sectional structure interposed;

the first attachment member is connected to the second attachment member inside the closed cross-sectional structure;

a head portion is formed in the first attachment member and the second attachment member so that the first attachment member has a larger diameter than that of a portion connected to the second attachment member; and

the head portion is arranged on an outer surface of the side frame to restrict the outer surface of the side frame in the seat width direction.

17. A vehicle seat comprising at least:

a seat back frame having the side frame according to claim 1; and

a seating frame connected indirectly or directly to a portion of the seat back frame.

2. An airbag module-mounting side frame which forms a seat and on which an airbag module is mounted, comprising:

an arrangement recess which is a recess formed in an outer surface of the side frame in which the airbag module is arranged;

an attachment member that attaches the airbag module and that connects the airbag module and the side frame; and

a portion which is a surface forming an upper side of the arrangement recess and which is positioned near an upper end of the airbag module, the portion being formed to protrude outward.

10. The airbag module-mounting side frame according to claim 2, wherein:

an outer-end side of a surface that forms an upper side of the arrangement recess and faces an upper end surface of the airbag module;

is positioned closer to an outer side than the upper end surface of the airbag module, and

is positioned closer to the outer side than an outer upper end of the side frame.

11. The airbag module-mounting side frame according to claim 2, wherein:

the side frame is configured to be divided in a width direction of the seat, one frame is arranged on an inner side in the seat width direction, an other frame is arranged on the outer side, and the arrangement recess is formed in the other frame, and

the one frame can be detachably attached to the other frame.

12. The airbag module-mounting side frame according to claim 2, wherein:

a restricting portion that extends outward in the seat width direction is provided in a portion of the arrangement recess disposed closer to a front surface of the airbag module.

13. The airbag module-mounting side frame according to claim 12, wherein:

the restricting portion forms an attachment member which is formed as a separate member from the side frame,

the attachment member further comprises a plurality of rearward extension portions extending at a predetermined angle from the restricting portion,

a predetermined gap is formed between adjacent rearward extension portions, and

when the rearward extension portion is attached to the arrangement recess, the restricting portion is arranged on a rear side, and the gap between the adjacent rearward extension portions is recessed toward a front side.

14. The airbag module-mounting side frame according to claim 13, wherein:

the restricting portion is formed in a flat-plate shape, and

the restricting portion is pivotable in relation to the rearward extension portion.

15. The airbag module-mounting side frame according to claim 13, wherein:

the restricting portion is pivotable in relation to the rearward extension portion by a hinge arranged in a boundary portion between the restricting portion and the rearward extension portion.

16. The airbag module-mounting side frame according to claim 14, wherein:

a wall portion that extends outward in the seat width direction is provided on a portion of the arrangement recess disposed closer to a rear surface of the airbag module.

18. A vehicle seat comprising at least:

a seat back frame having the side frame according to claim 2; and

a seating frame connected indirectly or directly to a portion of the seat back frame.

3. An airbag module-mounting side frame which forms a seat and on which an airbag module is mounted, comprising:

an attachment portion of the side frame to which the airbag module is attached, the attachment portion comprising a closed cross-sectional structure;

an arrangement recess which is a recess formed in an outer surface of the side frame in which the airbag module is arranged;

a portion which is a surface forming an upper side of the arrangement recess and which is positioned near an upper end of the airbag module, the portion being formed to protrude outward; and

an attachment member that connects the airbag module and the side frame disposed to connect an inner wall surface of the closed cross-sectional structure arranged on an outer side of the seat and an inner wall surface of the closed cross-sectional structure arranged on an inner side of the seat.

19. A vehicle seat comprising at least:

a seat back frame having the side frame according to claim 3; and

a seating frame connected indirectly or directly to a portion of the seat back frame.