Electricity: circuit makers and breakers – Special application – Change of inclination or of rate of motion responsive
Patent
1998-04-24
1999-04-27
Friedhofer, Michael A.
Electricity: circuit makers and breakers
Special application
Change of inclination or of rate of motion responsive
200 6153, H01H 3514
Patent
active
058981446
ABSTRACT:
A contact structure composed of a pushing side blade spring member with a first contact point and a receiving side blade spring member with a second contact point. The receiving side blade spring member is composed of three blade springs slidably overlapped with each other. A driving member is disposed on an opposite side of the second blade spring member with respect to the first blade spring member and biased by the first blade spring member. When a collision occurs, the driving member is displaced against a bias force to move the first blade spring member, so that the first contact point contacts the second contact point to output a detection signal. In this case, because the second blade spring member is composed of the three blade springs, the detection signal does not have chattering thereon.
REFERENCES:
patent: 4814564 (1989-03-01), Ritter
patent: 5034580 (1991-07-01), Tada et al.
patent: 5059751 (1991-10-01), Woodman et al.
patent: 5192838 (1993-03-01), Breed et al.
patent: 5233141 (1993-08-01), Breed
patent: 5756948 (1998-05-01), Husby et al.
Ogata Yoshihisa
Sakai Makoto
Denso Corporation
Friedhofer Michael A.
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