Cutting by use of rotating axially moving tool – Tool-support – With tool-retaining means
Patent
1994-11-04
1996-07-02
Howell, Daniel W.
Cutting by use of rotating axially moving tool
Tool-support
With tool-retaining means
279 71, 279140, 279151, 279902, B23B 31171
Patent
active
055315496
ABSTRACT:
A keyless chuck assembly for a hand-held drill includes a housing, three jaws for gripping a drill which is to be turned by the drill chuck assembly. The jaws are retained in the assembly and confined to radial motion with respect to the drive shaft by means of T-shaped guide slots in the bottom of the drive shaft and cooperating T-shaped ribs on the tops of the jaws. The jaws have a gripping surface and a cam surface. A rotatable adjusting ring engages the jaws to move them in the radial direction to secure and release the drill bit. The jaws can include a resilient material between the gripping surface and the cam surface to allow the chuck jaws to more securely grip the drill bit. A locking mechanism prevents rotation of the ring which would allow the jaws to open.
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Great Bay Tool Corporation
Howell Daniel W.
LandOfFree
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