AIRBELT SYSTEM

• US 20090243262A1
• Filed: 11/13/2006
• Published: 10/01/2009
• Est. Priority Date: 11/15/2005
• Status: Active Grant

• Current Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Original Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Itoga, Yasuo
• Granted Patent: US 7,748,735 B2
• Time in Patent Office: Days
• US Class Current: 280/728.200
• CPC Class Codes: B60R 2021/2612 Gas guiding means, e.g. ducts
• CPC Class Codes: B60R 21/18 the inflatable member formed as a belt or harness or combined with a belt or harness arrangement
• CPC Class Codes: B60R 22/26 secured to the seat

Abstract

There is provided an airbelt system in which an inflator and an anchor are mounted to the seat base without using a flexible pipe and with a relatively simple structure. An anchor 40 for connecting the webbing of the airbelt is rotatably supported on the outer surface of a side plate 20a of a base frame 20 of the seat with a plurality of arc-shaped long holes 43 and step bolts 43 passed through the long holes 43. An inflator 50 is disposed inside the side plate 20a. The gas port of the inflator 50 is substantially coaxial with the rotation axis center C of the anchor 40.

Claims

1. An airbelt system comprising:

an anchor mounted to a side plate of the seat base of a vehicle seat in such a manner as to be rotatable with the direction of the seat width as the rotation axis;

an airbelt connected to the anchor; and

an inflator for inflating the airbelt;

wherein

the anchor has a plate-like member opposed to the outer surface of the side plate of the seat base, the plate-like member having arc-shaped long holes extending circumferentially about the rotation axis center;

the anchor is supported by support members passed through the long holes in such a manner as to be rotatable about the rotation axis center with respect to the side plate; and

the inflator is disposed inside the side plate in such a manner that its gas port is coaxial with the rotation axis center.

2. The airbelt system according to claim 1, wherein the long holes are disposed in radially equal positions with respect to the rotation axis center.

3. The airbelt system according to claim 1, wherein:

a retainer retaining the inflator is disposed inside the side plate; and

the retainer and the anchor are mounted to the side plate with the support members passed through the long holes and the side plate.

4. The airbelt system according to claim 3, wherein:

the inflator is substantially columnar in shape;

the retainer has a cylindrical part accommodating the inflator and a flange connected to the cylindrical part; and

the flange is opposed to the inner surface of the side plate in such a manner that the inflator is coaxial with the rotation axis center, the flange being supported to the side plate by the support members.

5. The airbelt system according to claim 4, wherein:

the gas port of the inflator is disposed at the end of the inflator adjacent to the side plate; and

a gas pipe communicating the gas port with the airbelt is disposed through the side plate.

6. The airbelt system according to claim 5, wherein the gas pipe is a rigid or semirigid pipe.

7. The airbelt system according to claim 6, wherein the gas pipe is made of metal or hard synthetic resin.

8. The airbelt system according to claim 6, wherein the gas pipe is bent substantially in L-shape.

9. The airbelt system according to claim 6, wherein one end of the gas pipe is rotatably connected to the gas port of the inflator, and the other end of the gas pipe is connected to the airbelt.