Airbag sensor for airbag restraint system
First Claim
1. A locking releasing device of an airbag sensor for an airbag restraint system, the airbag sensor including triggering means for enabling an airbag to inflate upon being released from a locked condition, said locking releasing device comprising:
- a locking releasing pin movable to a predetermined position to release the triggering means from the locked condition, said locking releasing pin being made of a conductive material and moved upon rotation of a locking releasing bolt connected with said locking releasing pin;
a pin holder in which said locking releasing pin is movably disposed, said pin holder being made of a non-conductive material;
a locking releasing elongate member movable to drive said locking releasing pin to said predetermined position upon contact with said locking releasing pin, said locking releasing elongate member being made of a conductive material;
a conductive plate securely disposed within said pin holder and positioned such that said locking releasing pin is contactable with said conductive plate when said locking releasing pin is located at said predetermined position;
means for closing an electric circuit when said locking releasing pin is brought into contact with said locking releasing elongate member and said conductive plate; and
a warning device electrically connected with said conductive plate and adapted to operate in response to closing of said electric circuit.
1 Assignment
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Accused Products
Abstract
An airbag sensor for triggering the inflation of an airbag forming part of an airbag restraint system for an automotive vehicle, during a vehicle collision. The airbag sensor is arranged to be locked to disable the triggering function during maintenance and test run upon loosening a locking releasing bolt, and to be unlocked to normally function during norman driving of the vehicle upon tightening the bolt. A sufficient tightening of the locking releasing bolt provides closing of an electric circuit to operate a warning device which informs a mechanic of completion of the locking releasing.
19 Citations
7 Claims
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1. A locking releasing device of an airbag sensor for an airbag restraint system, the airbag sensor including triggering means for enabling an airbag to inflate upon being released from a locked condition, said locking releasing device comprising:
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a locking releasing pin movable to a predetermined position to release the triggering means from the locked condition, said locking releasing pin being made of a conductive material and moved upon rotation of a locking releasing bolt connected with said locking releasing pin; a pin holder in which said locking releasing pin is movably disposed, said pin holder being made of a non-conductive material; a locking releasing elongate member movable to drive said locking releasing pin to said predetermined position upon contact with said locking releasing pin, said locking releasing elongate member being made of a conductive material; a conductive plate securely disposed within said pin holder and positioned such that said locking releasing pin is contactable with said conductive plate when said locking releasing pin is located at said predetermined position; means for closing an electric circuit when said locking releasing pin is brought into contact with said locking releasing elongate member and said conductive plate; and a warning device electrically connected with said conductive plate and adapted to operate in response to closing of said electric circuit.
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2. An airbag sensor for an airbag restraint system, comprising:
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means for triggering an inflation of an airbag; locking means for locking said triggering means so as to disable said triggering means from triggering in a first state, and unlocking said triggering means so as to allow said triggering means to trigger in a second state; and locking releasing means for putting said locking means into said second state, including; a locking releasing pin movable to a predetermined position at which said locking means is put into said second state, said locking releasing pin being made of a conductive material, a pin holder in which said locking releasing pin is movably disposed, said pin holder being made of a non-conductive material, a locking releasing elongate member movable to drive said locking releasing pin to said predetermined position upon contact with said locking releasing pin, said locking releasing elongate member being made of a conductive material and moved upon rotation of a locking releasing bolt connected with said locking releasing elongate member, a conductive plate securely disposed within said pin holder and positioned such that said locking releasing pin is contactable with said conductive plate when it is located at said predetermined position; means for closing an electric circuit when said locking releasing pin is brought into contact with said locking releasing elongate member and said conductive plate, and a warning device electrically connected with said conductive plate and adapted to operate in response to closing of said electric circuit. - View Dependent Claims (3, 4, 5, 6, 7)
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Specification