Seatbelt device

• US 9,821,745 B2
• Filed: 10/17/2014
• Issued: 11/21/2017
• Est. Priority Date: 10/23/2013
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Tokai RIKA Denki Seisakusho
• Original Assignee: Kabushiki Kaisha Tokai RIKA Denki Seisakusho
• Inventors: Okubo, Shinichi, Hashimoto, Haruhiko, Ukita, Masaru, Hamada, Takahiro, Umakoshi, Tomonari
• Primary Examiner(s): GOODEN JR, BARRY J
• Application Number:
  US15/030,733
• Publication Number:
  US 20160250987A1
• Time in Patent Office: 1,131 Days
• CPC Class Codes: B60R 2021/0032 Position of passenger
• CPC Class Codes: B60R 2021/0044 Chest
• CPC Class Codes: B60R 2021/0058 Shoulders
• CPC Class Codes: B60R 2021/23308 the individual compartments defining the external shape of the bag
• CPC Class Codes: B60R 2021/23509 Fabric
• 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 21/233 comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other B60R21/232 takes precedence
• CPC Class Codes: B60R 22/12 Construction of belts or harnesses B60R21/18 takes precedence ; woven fabrics for safety belts D03D1/0005
• CPC Class Codes: B60R 22/14 incorporating enlarged restraint areas, e.g. vests, nets , crash pads, optionally for children crash pads for occupants' safety on vehicles in general B60R21/02
• CPC Class Codes: D03D 1/00 Woven fabrics designed to make specified articles
• CPC Class Codes: D03D 1/0005 Woven fabrics for safety belts
• CPC Class Codes: D03D 1/02 Inflatable articles
• CPC Class Codes: D03D 11/00 Double or multi-ply fabrics not otherwise provided for
• CPC Class Codes: D03D 11/02 Fabrics formed with pockets, tubes, loops, folds, tucks or flaps fabrics consisting of a single tube D03D3/02

Abstract

A seatbelt device is provided with a webbing and a bag body. The webbing is applied to the body of a vehicle occupant. The bag body includes a first layer at a webbing side and a second layer at an opposite side from the webbing, with the first layer disposed therebetween. The bag body is provided along a length direction of the webbing, fixed to one side of a thickness direction of the webbing and supported by the webbing, and disposed between the webbing and the body of the vehicle occupant in a state in which the webbing is applied to the body of the vehicle occupant. The bag body is inflated by fluid being supplied thereinside. A joined portion at which the first layer and second layer are locally joined together is formed in the bag body. The inflation of the bag body is controlled by the joined portion.

Claims

1. A seatbelt device comprising:

a webbing configured to be applied to a body of a vehicle occupant; and

a bag body including a first layer at a side of a bag body at which the webbing is disposed and a second layer at an opposite side of the bag body from the webbing, the first layer being disposed between the webbing and the second layer,

wherein the bag body is provided along a length direction of the webbing,

the bag body is fixed to one side of a thickness direction of the webbing and is supported by the webbing,

the bag body is disposed between the webbing and the body of the vehicle occupant in a state in which the webbing is applied to the body of the vehicle occupant,

the bag body is inflated by a fluid being supplied thereinside,

a plurality of discrete, spaced apart joined portions, at which the first layer and the second layer are locally joined together, is formed in the bag body,

inflation of the bag body is controlled by the joined portions, and

wherein a plurality of discrete, spaced apart fixed portions of the bag body to the webbing are established at the joined portions, the inflating fluid can flow between the joined portions substantially without resistance to uniformly inflate the bag body and the joined portions are leak proof with respect to the inflating fluid and configured not to be inflated by the fluid.

2. The seatbelt device according to claim 1, wherein the plurality of the joined portions are established to be spaced apart in a length direction of the bag body and offset in a width direction of the bag body.

3. The seatbelt device according to claim 1, wherein the plurality of joined portion are provided at a substantially central portion in a width direction of the bag body.

4. The seatbelt device according to claim 1, wherein the plurality of discrete, spaced apart fixed portions disposed adjacent to one another are established to be spaced apart in a length direction of the bag body and offset in a width direction of the bag body.