Airbag module-mounting side frame and vehicle seat provided with same

Patent metadata

Field	Value
Publication number	US-9545891-B2
Application number	US-201314439118-A
Country	US
Kind code	B2
Filing date	Oct 30, 2013
Priority date	Oct 31, 2012
Publication date	Jan 17, 2017
Grant date	Jan 17, 2017

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.

First claim

The invention claimed is:

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,
wherein:
the side frame comprises a plurality of frame members which are separated in a width direction of the seat and are detachable,
the side frame forms the closed-sectional structure by combining the plurality of frame members, and
the attachment member connects the plurality of frame members;

wherein:
the plurality of 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.

2. The airbag module-mounting side frame according to claim 1 , 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.

3. 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.

4. The airbag module-mounting side frame according to claim 3 , wherein:
a hole is formed at a position of the side frame facing the attachment member.

5. 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 a seat width direction.

6. 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.

7. 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,
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.

8. The airbag module-mounting side frame according to claim 7 , wherein:
the side frame is configured to be divided in a seat width direction, one frame is arranged on an inner side in the seat width direction, another 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.

9. The airbag module-mounting side frame according to claim 7 , wherein:
a restricting portion that extends outward in a seat width direction is provided in a portion of the arrangement recess disposed closer to a front surface of the airbag module.

10. The airbag module-mounting side frame according to claim 9 , wherein:
the restricting portion forms the 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 two adjacent rearward extension portions of the plurality of rearward extension portions, and
when the plurality of rearward extension portions are attached to the arrangement recess, the restricting portion is arranged on a rear side, and the gap between the two adjacent rearward extension portions is recessed toward a front side.

11. The airbag module-mounting side frame according to claim 10 , wherein:
the restricting portion is formed in a flat-plate shape, and
the restricting portion is pivotable in relation to the plurality of rearward extension portions.

12. The airbag module-mounting side frame according to claim 11 , 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.

13. The airbag module-mounting side frame according to claim 10 , wherein:
the restricting portion is pivotable in relation to the plurality of rearward extension portions by a hinge arranged in a boundary portion between the restricting portion and the plurality of rearward extension portions.

14. A vehicle seat comprising at least:
a seat back frame having the side frame according to claim 7 ; and
a seating frame connected indirectly or directly to a portion of the seat back frame.

15. 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.

16. A vehicle seat comprising at least:
a seat back frame having the side frame according to claim 15 ; and
a seating frame connected indirectly or directly to a portion of the seat back frame.

Assignees

• Ts Tech Co Ltd

Inventors

• Tanabe Jinichi

Classifications

• B60N2/64

  Back-rests {or cushions (B60N2/2222 takes precedence)} · CPC title

• B60N2/68

  Seat frames · CPC title

• B60N2/682

  Joining means · CPC title

• B60R21/207 Primary

  in vehicle seats · CPC title