Occupant restraint belt

• US 20070013175A1
• Filed: 07/07/2006
• Published: 01/18/2007
• Est. Priority Date: 07/13/2005
• Status: Abandoned Application

• Current Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Original Assignee: Takata Corporation (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Nezaki, Takuya, Suyama, Yoji, Hiroshige, Atsushi, Kato, Katsumi
• Application Number:
  US11/482,052
• Publication Number:
  US 20070013175A1
• Time in Patent Office: Days
• US Class Current: 280/733
• CPC Class Codes: B60R 2021/0006 Lateral collision
• CPC Class Codes: B60R 2021/0048 Head
• 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

Abstract

Inflation is sped up of the head-side portion of an occupant restraint belt that passes by the head of an occupant and routed across the front of the occupant, and which is inflatable from the head-side portion disposed on the side of the occupant'"'"'s head across the front portion disposed at the front of the occupant. A shoulder belt section of an occupant restraint belt has a head-side portion located on the side of the head of an occupant; and a front portion located across the front of the occupant. The shoulder belt section has a structure in which, upon inflation, the head-side portion becomes thicker than the front portion, and the front portion becomes substantially even in thickness in the longitudinal direction.

Claims

1. An occupant restraint belt passing by the head of an occupant and routed across the front of the occupant, comprising:

an inflatable portion extending from the side of the occupant'"'"'s head to the front of the occupant; and

a front portion located at the front of a region lower than the shoulder of the occupant,

wherein the inflatable portion includes a head-side portion located on the side of the occupant'"'"'s head, and

wherein, with the inflatable portion in an inflated state, the head-side portion becomes thicker than the front portion, and the front portion becomes substantially even in thickness in a longitudinal direction.

2. The occupant restraint belt according to claim 1, wherein, with the inflatable portion in an inflated condition, the average diameter D₁ of the head-side portion is 1.5 to 10 times as large as the average diameter D₂ of the front portion.

3. The occupant restraint belt according to claim 1, wherein, with the inflatable portion in an inflated condition, the average diameter D₁ of the head-side portion is 1.5 to 8 times as large as the average diameter D₂ of the front portion.

4. The occupant restraint belt according to claim 1, wherein, with the inflatable portion in an inflated condition, the average diameter D₁ of the head-side portion is 1.5 to 3 times as large as the average diameter D₂ of the front portion.

5. The occupant restraint belt according to claim 1, wherein, with the inflatable portion in an inflated condition, the average diameter D₁ of the head-side portion is 3 to 10 times as large as the average diameter D₂ of the front portion.

6. The occupant restraint belt according to claim 1, wherein, with the inflatable portion in an inflated condition, the average diameter D₁ of the head-side portion is 3 to 8 times as large as the average diameter D₂ of the front portion.

7. The occupant restraint belt according to claim 1, wherein, with the inflatable portion in an inflated condition, the average diameter D₁ of the head-side portion is 8 to 10 times as large as the average diameter D₂ of the front portion.

8. The occupant restraint belt according to claim 1, further comprising a check valve,

wherein the inflatable portion is inflated when gas is supplied into the front portion, and the gas then flows from the front portion to the head-side portion, and

wherein the check valve is disposed between the front portion and the head-side portion, the check valve allowing gas flow from the front portion to the head-side portion, but preventing gas flow from the head-side portion to the front portion.

9. An occupant restraint system comprising:

an occupant restraint belt with an inflatable portion, the occupant restraint belt passing by the head of an occupant and routed across the front of the occupant; and

an inflator to inflate the inflatable portion,

wherein the inflatable portion extends from the side of the occupant'"'"'s head to the front of the occupant, the inflatable portion includes a head-side portion located on the side of the occupant'"'"'s head; and

a front portion located at the front of a region lower than the shoulder of the occupant,

wherein, with the inflatable portion in an inflated state, the head-side portion becomes thicker than the front portion, and the front portion becomes substantially even in thickness in a longitudinal direction.

10. The occupant restraint system according to claim 9, wherein, with the inflatable portion in an inflated condition, the average diameter D₁ of the head-side portion is 1.5 to 10 times as large as the average diameter D₂ of the front portion.

11. The occupant restraint system according to claim 9, wherein, with the inflatable portion in an inflated condition, the average diameter D₁ of the head-side portion is 1.5 to 8 times as large as the average diameter D₂ of the front portion.

12. The occupant restraint system according to claim 9, wherein, with the inflatable portion in an inflated condition, the average diameter D₁ of the head-side portion is 1.5 to 3 times as large as the average diameter D₂ of the front portion.

13. The occupant restraint system according to claim 9, wherein, with the inflatable portion in an inflated condition, the average diameter D₁ of the head-side portion is 3 to 10 times as large as the average diameter D₂ of the front portion.

14. The occupant restraint system according to claim 9, wherein, with the inflatable portion in an inflated condition, the average diameter D₁ of the head-side portion is 3 to 8 times as large as the average diameter D₂ of the front portion.

15. The occupant restraint system according to claim 9, wherein, with the inflatable portion in an inflated condition, the average diameter D₁ of the head-side portion is 8 to 10 times as large as the average diameter D₂ of the front portion.

16. The occupant restraint system according to claim 9, further comprising a check valve,

wherein the inflatable portion is inflated when gas is supplied into the front portion, and the gas then flows from the front portion to the head-side portion, and

wherein the check valve is disposed between the front portion and the head-side portion, the check valve allowing gas flow from the front portion to the head-side portion, but preventing gas flow from the head-side portion to the front portion.