Air bag apparatus
First Claim
Patent Images
1. An air bag apparatus including a pressure control mechanism comprising:
- a canister;
an inflator for accumulating an operating gas said inflator being arranged in said canister;
an air bag for expanding when said operating gas is supplied from said inflator through said canister;
a pressure adjusting mechanism for adjusting a pressure value of said operating gas in said canister in response to an applied acceleration;
a first opening hole formed in said canister, said first opening hole being defined to communicate with an internal portion of said pressure adjusting mechanism;
a vent formed in said pressure adjusting mechanism, said vent being defined to communicate with the atmosphere;
a weight provided in said pressure adjusting mechanism, said weight having means for controlling an opening of said first opening hole;
a second opening hole formed in said weight, said second opening hole being defined to communicate between said pressure adjusting mechanism and the atmosphere when said first and second opening holes are aligned; and
a spring arranged between said canister and said weight, said spring being operatively positioned to maintain said weight in an initial position.
1 Assignment
0 Petitions
Accused Products
Abstract
The air bag apparatus has a pressure adjusting mechanism. The pressure adjusting mechanism controls a flow rate of the operating gas. When acceleration caused by a collision exceeds a predetermined level by a small level, the pressure adjusting mechanism releases the operating gas into the atmosphere. When the acceleration well exceeds the predetermined level, the pressure adjusting mechanism does not release the operating gas.
-
Citations
5 Claims
-
1. An air bag apparatus including a pressure control mechanism comprising:
-
a canister; an inflator for accumulating an operating gas said inflator being arranged in said canister; an air bag for expanding when said operating gas is supplied from said inflator through said canister; a pressure adjusting mechanism for adjusting a pressure value of said operating gas in said canister in response to an applied acceleration; a first opening hole formed in said canister, said first opening hole being defined to communicate with an internal portion of said pressure adjusting mechanism; a vent formed in said pressure adjusting mechanism, said vent being defined to communicate with the atmosphere; a weight provided in said pressure adjusting mechanism, said weight having means for controlling an opening of said first opening hole; a second opening hole formed in said weight, said second opening hole being defined to communicate between said pressure adjusting mechanism and the atmosphere when said first and second opening holes are aligned; and a spring arranged between said canister and said weight, said spring being operatively positioned to maintain said weight in an initial position. - View Dependent Claims (2, 3, 4, 5)
-
Specification