Self-tightening keyless chuck

Details Self-tightening keyless chuck Self-tightening keyless chuck

2007-07-24

2007-07-24

Carter, Monica (Department: 3722)

Chucks or sockets

Socket type

Obliquely guided reciprocating jaws

C279S902000, C384S615000

Reexamination Certificate

active

10511404

ABSTRACT:
The present invention relates to a self-tightening keyless chuck to enable electric percussive drills to grip a tool shank. The chuck includes a rear sleeve, a body, a bearing ring, a bearing assembly, a nut, a jaw, a front sleeve and a stopper and so on. The bearing assembly utilizing a ball bearing is positioned with a circumferential arcuate race with a fixed depth, and the bottom surfaces of said circumferential arcuate race are provided with a plurality of ball-shape grooves. During the chuck grips a tool shank, the balls of said ball-bearing enter into the ball-shape grooves and are locked there, so as to prevent the tool from loosening due to the percussion vibration. In addition, the front sleeve engages with a nut through radial smooth press-fit to securely transmit a torque.

REFERENCES:
patent: 2910302 (1959-10-01), Ondeck
patent: 4305597 (1981-12-01), McCarty
patent: 5044643 (1991-09-01), Nakamura
patent: 5145194 (1992-09-01), Huff et al.
patent: 5174588 (1992-12-01), Reibetanz et al.
patent: 5215317 (1993-06-01), Jordan et al.
patent: 5411275 (1995-05-01), Huff et al.
patent: 5476273 (1995-12-01), Shadeck et al.
patent: 5531461 (1996-07-01), Huff et al.
patent: 5669616 (1997-09-01), Ho
patent: 5934689 (1999-08-01), Montjoy
patent: 5944328 (1999-08-01), Lin et al.
patent: 6010135 (2000-01-01), Miles et al.
patent: 6217033 (2001-04-01), Sakamaki et al.
patent: 6260856 (2001-07-01), Temple-Wilson
patent: 6991238 (2006-01-01), Yang et al.
patent: 7040630 (2006-05-01), Huggins et al.
patent: 2002/0180164 (2002-12-01), Aultman et al.
patent: 2233298 (1996-08-01), None
patent: 2235871 (1996-09-01), None

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