Integral hinge sensing switch

Details Integral hinge sensing switch Integral hinge sensing switch

1976-03-15

1977-06-21

Scott, James R.

Electricity: circuit makers and breakers

Special application

Actuated concurrently with operation or use of art device

200 52R, 200246, 200283, 200294, 200329, H01H

Patent

active

040313441

ABSTRACT:
An integrally formed sensing switch for use with a seat belt retractor assembly and having a housing portion provided with an integrally hinged seat belt follower push arm plate adapted for pivotal movement in association therewith. The push arm plate has a fixed actuator pin extension on the lower surface thereof which selectively extends into the housing in response to movement of the push arm plate and depresses a spring leaf contact element provided in the housing portion so as to selectively open and close an electrical sensing circuit made thus responsive to spool condition as webbing is extended or webbing is retracted. The upper surface of the push arm plate engages the outer surface of seat belt webbing coiled on the retractor spool and is biased to move therewith as the seat belt pays into and out of the retractor assembly.

REFERENCES:
patent: 2192296 (1940-03-01), Boynton
patent: 3172981 (1965-03-01), Loesch
patent: 3504336 (1970-03-01), Boblitz
patent: 3519771 (1970-07-01), Burns
patent: 3548131 (1970-12-01), Piber
patent: 3597564 (1971-08-01), Lewis
patent: 3614359 (1971-10-01), Beck et al.
patent: 3749872 (1973-07-01), Foster
patent: 3763341 (1973-10-01), Willis

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