Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1997-09-23
1999-04-27
Hofsass, Jeffery A.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340551, 180270, 24633, B60Q 100, B60R 2100
Patent
active
058983660
ABSTRACT:
An apparatus includes a latch (42), an armature structure (64), and a spring structure (66). The latch (42) is movable from a non-locking position to a locking position in which the latch (42) engages a seat belt tongue (16). The armature structure (64) conducts magnetic flux from a magnet (62) to a Hall effect device (60). The spring structure (66) biases the armature structure (64) into sliding contact with the latch (42) during movement of the latch (42) between the non-locking and locking positions. The latch (42) affects the magnetic flux conducted by the armature structure (66) so as to cause the Hall effect device (60) to have a first output when the latch (42) is in the non-locking position and to have a second, different output when the latch (42) is in the locking position.
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Research Disclosure 2244 (1996) Mar., No. 383 Emsworth, GB, XP 000581332, p. 193, 38333, "Seat Belt Buckle Switch".
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U.S. Appln. No. 08/900,344, filed Jul. 25, 1997, entitled "Method and Apparatus for Indicating the Locked or Unlocked Condition of a Seat Belt Buckle", Atty. Docket No. TRW(TE)3540 Pat. No. 5,774,612.
U.S. Appln. No. 08/800,263, filed Feb. 13, 1997, entitled "Seat Belt Buckle with Hall Effect Locking Indicator and Method of Use"Pat. No. 5,762,986.
U.S. Appln. No. 08/749,949, filed Nov. 14, 1996, entitled "Seat Belt Buckle with Field Effect Locking Indicator and Method of Use".
Brown Louis R.
Ellis Robert P.
Hofsass Jeffery A.
Trieu Van T.
TRW Vehicle Safety Systems Inc.
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