Chucks or sockets – Socket type – Side detent
Patent
1999-09-01
2000-08-29
Bishop, Steven C.
Chucks or sockets
Socket type
Side detent
30392, 8369871, 403362, 407 2915, B23B 31107
Patent
active
061096199
ABSTRACT:
A method for gripping such objects as tool bits and other implements is an extension of principles employed by tool holders currently in use, which grip at one (primary) position along the shank length. This invention provides auxiliary gripping, or what I hereinafter call "back up gripping" at one or more positions in addition to the primary gripping position. A universal tool holder or handle is presented as one embodiment of the invention. The holder is an elongated cylindrical sleeve one end of which contains a gripping mechanism utilizing back up gripping. The other end of the holder allows for insertion of a strike rod which, when making contact internally with the gripped tool, transmits to the tool the impact of hammer blows made against the outer end of the rod. The gripping mechanism of the embodiment is comprised of two pairs of traversely adjustable screws which serve as jaws or grips. Each pair of jaws grips the shank in an orientation different from the gripping by the other pair. The two orientations might be perpendicular to each other or they might be related by some other central angle within a circle cross sectional to the longitudinal axis of the cylinder. Further, each pair grips at a different location along the length of the shank. Such gripping is shown to have advantages over conventional gripping in hand tools. It further suggests possibilities for innovations in gripping arrangements for power tools to remedy problems inherent in machines presently in use. The universal tool holder presented herein is designed to hold a larger variety of shapes and sizes of tool shanks than heretofore possible including tool shanks infinitesimally small and including tool shanks that may be bent, out of round, or otherwise irregular or misshapen.
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