Webbing device

Patent metadata

Field	Value
Publication number	US-9902358-B2
Application number	US-201515314422-A
Country	US
Kind code	B2
Filing date	Apr 30, 2015
Priority date	Jun 3, 2014
Publication date	Feb 27, 2018
Grant date	Feb 27, 2018

Abstract

In a seatbelt device, at a time of an emergency of a vehicle, gas is supplied into a tube, and gas within the tube is supplied into a chest bag of a bag, and the chest bag is inflated and expanded. Here, at a time when gas is supplied into the tube, due to the tube being inflated between a webbing and a lower side peripheral surface of an insert-through hole of a tongue, a transverse direction other side portion of the bag is crushed by the tube, and gas that is within the chest bag passing via the transverse direction other side portion of the bag into a waist bag of the bag is limited. Therefore, the chest bag can be inflated and expanded at an early stage.

First claim

The invention claimed is:

1. A webbing device comprising:
a bag body that is provided at a webbing that is applied to a passenger of a vehicle, and at which are provided a supplying portion into which a fluid is supplied and an inflating portion into which the fluid, that was supplied into the supplying portion, is supplied and that is inflated; and
an insert-through member, in which is provided an insert-through hole through which the bag body is inserted, wherein
the bag body is disposed at one side and at another side of the insert-through member,
the insert-through member supports the bag body at one side peripheral surface of the through-hole,
the fluid, that has been supplied into the supplying portion, is supplied into the inflating portion at the one side of the insert-through member, and
due to the fluid being supplied into the supplying portion and the supplying portion being inflated, the inflating portion is crushed between the supplying portion and another side peripheral surface of the insert-through hole, and passage of the fluid, that is within the inflating portion, from the one side toward the other side of the insert-through member, is limited.

2. The webbing device of claim 1 , wherein the supplying portion is configured to contract after supplying of fluid into the supplying portion has ended.

3. The webbing device of claim 1 , wherein the supplying portion is disposed at another side of the webbing, and the inflating portion is disposed at one side of the webbing and another side of the supplying portion.

4. The webbing device of claim 1 , comprising a discharge hole that is provided at the inflating portion at the other side of the insert-through member, and that is configured to discharge fluid that is within the inflating portion.

5. The webbing device of claim 4 , wherein a webbing transverse direction dimension of the supplying portion is larger than a webbing transverse direction dimension of the discharge hole.

6. The webbing device of claim 1 , comprising a covering member that covers the bag body, and at which rupturing due to inflation of the bag body is limited at the other side of the insert-through member.

Assignees

• Tokai Rika Co Ltd

Inventors

• Okubo Shinichi
• Ukita Masaru
• Umakoshi Tomonari
• Hashimoto Haruhiko
• Nakashima Ryu

Classifications

• B60R21/264

  using instantaneous generation of gas, e.g. pyrotechnic (B60R21/268 takes precedence) · CPC title

• B60R21/237

  characterised by the way they are folded · CPC title

• B60R21/262

  Elongated tubular diffusers, e.g. curtain-type · CPC title

• B60R21/233

  comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other (B60R21/232 takes precedence) · CPC title

• B60R2021/23107

  the bag being integrated in a multi-bag system · CPC title