Inflator for air bag
First Claim
1. An inflator for an air bag constituted to include an inflator housing which accommodates at least one of a pressurized gas and a gas generating agent which burns to generate a gas, a gas discharge portion provided with an annular portion formed with plural first gas discharge ports for discharging a gas of the inflator housing, and a diffuser member which covers an outer surface of the gas discharge portion and is mounted as a separate member only in the vicinity of the first gas discharge ports, wherein the diffuser member is provided with a passage forming portion for guiding a gas discharged from the first gas discharge ports in the circumferential direction of the gas discharge portion between the diffuser member and the gas discharge portion, and one or two or more second gas discharge ports for discharging the gas of the passage in the radial direction of the inflator housing are formed unevenly on the one portion of the passage forming portion in the circumferential direction.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention provides an inflator for an air bag which concentrates the discharging direction of a gas in one direction toward an air bag and does not allow jumping of the inflator even due to malfunction thereof before installation to a vehicle, and which further allows easy and reliable connection of the air bag and the inflator. An inflator for an air bag is constituted to include a gas discharge portion 20 provided with an annular portion with plural first gas discharge ports 22 formed therein, and a diffuser portion 40 removably mounted only in the vicinity of the first gas discharge ports, the diffuser member 40 is provided with a passage forming portion 50, and one or two or more second gas discharge ports 45 for discharging a gas of a passage 46 in the radial direction of an inflator housing are formed unevenly on one portion of the passage forming portion in the circumferential direction thereof.
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Citations
6 Claims
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1. An inflator for an air bag constituted to include
an inflator housing which accommodates at least one of a pressurized gas and a gas generating agent which burns to generate a gas, a gas discharge portion provided with an annular portion formed with plural first gas discharge ports for discharging a gas of the inflator housing, and a diffuser member which covers an outer surface of the gas discharge portion and is mounted as a separate member only in the vicinity of the first gas discharge ports, wherein the diffuser member is provided with a passage forming portion for guiding a gas discharged from the first gas discharge ports in the circumferential direction of the gas discharge portion between the diffuser member and the gas discharge portion, and one or two or more second gas discharge ports for discharging the gas of the passage in the radial direction of the inflator housing are formed unevenly on the one portion of the passage forming portion in the circumferential direction.
Specification