Keyless chuck assembly for a rotary driven tool

Details Keyless chuck assembly for a rotary driven tool Keyless chuck assembly for a rotary driven tool

1998-12-04

2000-10-31

Bishop, Steven C.

Cutting by use of rotating axially moving tool

Tool-support

With tool-retaining means

279150, 279902, 408710, B23B 3106, B23B 4500

Patent

active

061392286

ABSTRACT:
A chuck assembly (22) for releasably attaching a cutting accessory (23) to a rotary driven tool such as a surgical drill (20). The chuck assembly includes a chuck head (30) from which a drive spindle (36) extends rearwardly. Clamping jaws (34) extend from the front end of the chuck head to hold the cutting accessory in place. The chuck head, the drive spindle and the clamping jaws can rotate in unison about a common axis of rotation. Alternatively, the chuck head and the drive spindle can be rotated relative to each other around this common axis to lock and unlock the jaws. A spindle lock housing (41) is located between the chuck head and the drill to which the chuck head is attached. The drive spindle (36) extends through the spindle lock housing (41). A moveable switch (88) is mounted to the spindle lock housing (41). The switch can be positioned to engage the drive spindle to prevent rotation of the spindle. This makes manual unlocking and locking of the jaws possible when it is necessary to switch cutting accessories.

REFERENCES:
patent: 2211216 (1940-08-01), Oster
patent: 2536017 (1951-01-01), Bamberger
patent: 3798775 (1974-03-01), Weinberg et al.
patent: 3872951 (1975-03-01), Hastings, Jr.
patent: 4526497 (1985-07-01), Hatfield
patent: 4620539 (1986-11-01), Andrews et al.
patent: 5860775 (1999-01-01), Kim

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