Impact detecting switch

Details Impact detecting switch Impact detecting switch

1977-10-18

1980-07-01

Scott, James R.

Electricity: circuit makers and breakers

Special application

Change of inclination or of rate of motion responsive

200 6153, H01H 3514

Patent

active

042107890

ABSTRACT:
An impact detecting device of the type including a casing; a movable member which is housed in the casing and movable substantially along a straight line relative to the casing, when the device is subjected to an impact; a spring for elastically loading the movable member during its movement in the direction against the direction of the movement of the movable member; and a switch adapted to be closed, when the movable member is moved a given distance against the action of the spring. In this device, there is provided a spiral guide which engages the movable member during its movement so as to rotate the movable member, whereby part of energy to be imparted to the casing and movable member due to impact upon collision is consumed for the rotation of the movable member, so that an extent of movement of the movable member may be shortened.

REFERENCES:
patent: 2798136 (1957-07-01), Taubox
patent: 3020367 (1962-02-01), Bariffi
patent: 3066540 (1962-12-01), Severance
patent: 3120760 (1964-02-01), Waldhauer, Jr.
patent: 3749863 (1973-07-01), Kaiser
patent: 3832505 (1974-08-01), Wong
patent: 3867601 (1975-02-01), Lipschutz

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