Electricity: circuit makers and breakers – Special application – Actuated concurrently with operation or use of art device
Patent
1997-03-27
1998-10-27
Scott, J. R.
Electricity: circuit makers and breakers
Special application
Actuated concurrently with operation or use of art device
200 11R, 200336, H01H 906, H01H 2122, H01H 2178
Patent
active
058280227
ABSTRACT:
An inhibitor switch device having an operating lever 9 equipped with a strength adjusting portion 96 near the rotating axle. The strength adjusting portion 96 has a mass which can be adjusted by using a nested-type metal molding. The strength adjusting portion 96 allows the operating lever 9 to be set to a suitable strength so that the operating lever 9 breaks when an abnormal external force is applied. Also, when an abnormal external force is applied, the strength adjusting portion 96 prevents the spread of breakage to the rotating axle, and allows easy detection of defective products by an external check of the strength adjusting portion. In addition, the strength adjusting portion allows fine adjustment of the operating lever 9 to a suitable strength during formation thereof, thereby preventing the strength adjusting portion from being broken under regular external forces.
REFERENCES:
patent: 4604506 (1986-08-01), Gebhardt
patent: 4897513 (1990-01-01), Oka et al.
patent: 5679937 (1997-10-01), Iwata
patent: 5693925 (1997-12-01), Yamada et al.
Nakazawa Takashi
Watada Tsutom
Niles Parts Co., Ltd.
Scott J. R.
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