Airbag module-equipped seat, and method for mounting same

Patent metadata

Field	Value
Publication number	US-9598040-B2
Application number	US-201314758214-A
Country	US
Kind code	B2
Filing date	Dec 26, 2013
Priority date	Dec 28, 2012
Publication date	Mar 21, 2017
Grant date	Mar 21, 2017

Abstract

An airbag module-equipped seat in which the periphery of an attachment portion of a guide member that guides a deployment direction of an airbag has a compact size and the guide member can be attached easily while maintaining satisfactory deployment performance of the airbag. This seat includes an airbag module attached to a side frame, a guide member that guides a deployment direction of the airbag module, and an attachment member for attaching the guide member to the side frame. The side frame has an attachment hole for the attachment member at a position different from a shaft portion for attaching the airbag module. The attachment member has a holding space in which an end of the guide member is held in a detachable manner, and is inserted into the attachment hole in a state in which the end of the guide member is held in the holding space.

First claim

The invention claimed is:

1. An airbag module-equipped seat comprising:
an airbag module for storing an airbag therein;
a side frame that extends along a side portion of the seat, wherein the airbag module is attached to the side frame;
a guide member that guides a deployment direction of the airbag module; and
an attachment member for attaching the guide member to the side frame,

wherein:
the side frame comprises an attachment hole for the attachment member at a position different from a shaft portion for attaching the airbag module,
the attachment member comprises:
a holding space in which an end of the guide member is held in a detachable manner,
a hole contacting portion comprising an outer shape following a shape of the attachment hole, and
a protruding portion that protrudes outward from the hole contacting portion, and

the attachment member is inserted into the attachment hole in a state in which the end of the guide member is held in the holding space, and
at least a portion of the protruding portion extends from the airbag module side toward the side frame side and is pressed by another member.

2. The airbag module-equipped seat according to claim 1 , wherein the attachment hole is formed in a position closer to a front side of the seat than the shaft portion to face the airbag module.

3. The airbag module-equipped seat according to claim 1 , wherein the other member presses at least a portion of a region of the attachment member surrounded by the attachment hole from the airbag module side.

4. The airbag module-equipped seat according to claim 1 , wherein:
the attachment member comprises:
a restricting portion connected to the attachment hole to restrict movement of the attachment member from the attachment hole; and
a planar protruding portion that protrudes from one end of the restricting portion, and
at least a portion of the protruding portion is sandwiched between the side frame and the guide member.

5. The airbag module-equipped seat according to claim 4 , wherein the restricting portion comprises at least an upper wall and a lower wall that:
cover an upper side and a lower side of the holding space; and
make contact with an inner surface of the attachment hole.

6. The airbag module-equipped seat according to claim 4 , wherein:
the restricting portion is formed by a continuous wall that makes contact with an inner surface of the attachment hole, and
the continuous wall forms the holding space therein.

7. The airbag module-equipped seat according to claim 6 , wherein:
a partition wall that partitions the holding space into a plurality of divided spaces is provided on an inner surface of the continuous wall, and
the plurality of divided spaces communicate with each other to form a continuous passage for the guide member.

8. The airbag module-equipped seat according to claim 1 , further comprising:
a seat frame;
a cushion pad supported by the seat frame; and
a skin material that covers the airbag module and the cushion pad,

wherein:
a pair of terminals of the skin material is attached to an end of the guide member fixed to one of the pair of terminals to form a breaking portion that serves as a starting point of breaking of the skin material during deployment of the airbag and faces the cushion pad, and
contact pressure that the cushion pad receives from the skin material and the guide member in the breaking portion is designed so that the contact pressure on the terminal to which the guide member is fixed is lower than the contact pressure on the terminal to which the guide member is not fixed.

9. The airbag module-equipped seat according to claim 1 , wherein:
the attachment member is fitted into the attachment hole,
a misassembly suppressing portion is provided to suppress an assembly error of assembling the attachment member with the attachment hole, and
the misassembly suppressing portion is formed at least in a portion of the inner surface of the attachment hole that faces the attachment member or a portion of the attachment member that faces the inner surface of the attachment hole.

10. The airbag module-equipped seat according to claim 1 , wherein the side frame comprises:
an attachment portion to which the attachment member is attached; and
a step formed to surround the attachment portion.

11. The airbag module-equipped seat according to claim 10 , wherein a region of the side frame surrounded by the step forms a recess that is depressed deeper toward an inner side in the seat width direction than other portions of the side frame.

12. The airbag module-equipped seat according to claim 1 , further comprising:
a seat back frame comprising the side frame; and
a cushion pad mounted on the seat back frame,

wherein:
at least a portion of the attachment member is exposed to a back surface of a front pad portion of the cushion pad that covers:
a front surface of the seat back frame; and
a region surrounded by a seat inner-side surface of the side frame.

13. A method for mounting the airbag module-equipped seat according to claim 1 , wherein:
the airbag module-equipped seat further comprises:
a seat back frame comprising the side frame;
a cushion pad mounted on the seat back frame; and
a trim cover that covers the cushion pad, and
one end of the guide member is fixed to a breaking portion which is formed more fragile than the other portions of the trim cover, and the other end is connected to the side frame,

the method comprising:
connecting the other end of the guide member to the side frame using the attachment member; and
attaching the airbag module to the side frame on the seat outer side of the attachment member.

14. An airbag module-equipped seat comprising:
an airbag module for storing an airbag therein;
a side frame that extends along a side portion of the seat;
the airbag module attached to the side frame;
a guide member that guides a deployment direction of the airbag module; and
an attachment member for attaching the guide member to the side frame,

wherein:
the side frame comprises an attachment hole for the attachment member at a position different from a shaft portion for attaching the airbag module,
the attachment member comprises a holding space in which an end of the guide member is held in a detachable manner,
the attachment member is inserted into the attachment hole in a state in which the end of the guide member is held in the holding space, and
the end of the guide member is disposed in an inner space of the side frame.

15. The airbag module-equipped seat according to claim 14 , wherein the attachment hole is formed in a position closer to a front side of the seat than the shaft portion to face the airbag module.

16. The airbag module-equipped seat according to claim 14 , wherein:
the attachment member comprises:
a restricting portion connected to the attachment hole to restrict movement of the attachment member from the attachment hole; and
a planar protruding portion that protrudes from one end of the restricting portion, and
at least a portion of the protruding portion is sandwiched between the side frame and the guide member.

17. The airbag module-equipped seat according to claim 14 , further comprising:
a seat frame;
a cushion pad supported by the seat frame; and
a skin material that covers the airbag module and the cushion pad,

wherein:
a pair of terminals of the skin material is attached to an end of the guide member fixed to one of the pair of terminals to form a breaking portion that s

Assignees

• Ts Tech Co Ltd

Inventors

• Tanabe Jinichi
• Baba Hiroshi
• Takeuchi Makoto
• Izawa Hiroshi

Classifications

• B60R21/201

  Packaging straps or envelopes for inflatable members · CPC title

• Y10T29/482

  Tufting · CPC title

• B60R21/207 Primary

  in vehicle seats · CPC title

• B60R2021/161

  characterised by additional means for controlling deployment trajectory · CPC title

• F16B5/0692

  joining flexible sheets to other sheets or plates or to strips or bars (tent fastenings E04H15/64; coping elements for swimming pools with fixing means for sealing foil E04H4/142; greenhouses of flexible synthetic material A01G9/1407; end or aperture-closing arrangements or devices for sacks or bags B65D33/16) · CPC title