Spindle locking mechanism for a rotary power device

Details Spindle locking mechanism for a rotary power device Spindle locking mechanism for a rotary power device

1978-12-06

1979-12-18

Budd, Mark O.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 75R, 403324, 403328, H02K 714

Patent

active

041796322

ABSTRACT:
The instant invention provides a manually operable locking mechanism for a rotary power tool. The locking mechanism comprises a housing for the rotary power tool, the housing having an opening therein, a spindle rotatably mounted within the housing, the spindle having a radially extending aperture in axial alignment with the housing opening, a loop spring disposed adjacent the housing, the loop spring having a hole in alignment with the opening in the housing, and a lock pin. The lock pin includes an outer section slidingly engaging the opening in the housing, a manually engageable button at its outer end extending radially outwardly from the housing, and a shaft at its inner end extending radially inwardly of the housing and through the hole of the loop spring. The locking mechanism further comprises means connected to the lock pin for collapsing the loop spring radially inwardly so that, when the aperture in the spindle is aligned with the lock pin, the shaft of the lock pin may enter said aperture and thereby prevent rotation of the spindle.

REFERENCES:
patent: 3669463 (1972-06-01), Boudreau
patent: 3679244 (1972-07-01), Reddy
patent: 3685865 (1972-08-01), Young
patent: 3752514 (1973-08-01), Schoeps
patent: 3873863 (1975-03-01), Pew
patent: 3948547 (1976-04-01), Gache

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