Title:
CHUCK, BIT, ASSEMBLY THEREOF AND METHODS OF MOUNTING
Document Type and Number:
WIPO Patent Application WO2000027574
Kind Code:
A9
Abstract:
A chuck (40) includes a body (42) having angularly space ribs (166, 168, 170) in a forward cylindrical opening (48) thereof. A locking element (236) is movable within a passage (180) of the body (42), and is formed with a portion (242) which is extendable from the passage (180), through an inboard peak surface (172) of the rib (166) and into the opening (48). An actuator (44) is coupled to the locking element (236) and is biased by a spring (250) to urge normally the portion (242) of the locking element (236) into the opening (48). A bit (62) is formed with a shank (96) with three grooves (100, 102, 104), having pockets (114) formed in their bases, extending axially to a free end (112) thereof. The bit (62) can be manually inserted into the opening (48) of the chuck (40) such that the grooves (100, 102, 104) are located drivingly over at least portions of the ribs (166, 168, 170), respectively. The portion (242) of the locking element (236) is located biasingly within the pocket (114) to lock the bit (62) with the chuck (40).
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Inventors:
MOORES ROBERT G JR (US)
BRELSFORD ALLEN (US)
COCHRAN JOHN R (US)
BRELSFORD ALLEN (US)
COCHRAN JOHN R (US)
Application Number:
PCT/US1999/026888
Publication Date:
August 22, 2002
Filing Date:
November 12, 1999
Export Citation:
Assignee:
BLACK & DECKER INC (US)
MOORES ROBERT G JR (US)
BRELSFORD ALLEN (US)
COCHRAN JOHN R (US)
MOORES ROBERT G JR (US)
BRELSFORD ALLEN (US)
COCHRAN JOHN R (US)
International Classes:
B23B51/00; B25D17/08; (IPC1-7): B23B51/00; B23B31/107
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