Chuck lock bit changer

Details Chuck lock bit changer Chuck lock bit changer

1998-08-28

2000-05-02

Bishop, Steven C.

Chucks or sockets

Accessory or component

Chuck key

279 60, 279 62, 279902, B23B 3112

Patent

active

060562986

ABSTRACT:
A keyless chuck having an outer chuck with spaced grooves, an inner chuck and chuck jaws, where the keyless chuck is mounted on an output shaft of a drill motor. A sleeve locking device mounted between the outer chuck and the drill motor housing, where the sleeve locking device has spaced inner teeth to engage the spaced grooves of the outer chuck to lock the outer chuck stationary, allowing the inner chuck to rotate and opening or closing the chuck jaws to install and remove drill bits.

REFERENCES:
patent: 4669932 (1987-06-01), Hartley
patent: 4840387 (1989-06-01), McCarthy
patent: 4930793 (1990-06-01), Ando
patent: 5431419 (1995-07-01), Mack
patent: 5775704 (1998-07-01), Wilson et al.

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