Hand drill, in particular hammer drill

Details Hand drill, in particular hammer drill Hand drill, in particular hammer drill

1994-11-07

1995-11-28

Bishop, Steven C.

Chucks or sockets

Socket type

Lost motion

173 48, 279 62, 279137, 279902, B23B 3104, B25D 1708

Patent

active

054700841

ABSTRACT:
A hand drill, in particular a hammer drill has a combination tool holder provided with a first tool receptacle with clamping jaws displaceable relative to a base body and adjustable by a rotatable adjusting ring to different diameters of tool shafts, and a second separate tool receptacle for tools with a groove shaft and provided with means for at least one driving and locking as well as with a central receiving opening for the groove shaft tool, and an arresting device having a blocking slider which is arranged displaceably in the base body and non-rotatably connected with the base body in a circumferential direction, the blocking slider being movable between a first end position in which a radially inwardly directed end of the blocking slider engages in the central receiving opening and is provided with teeth such that when a groove shaft tool is inserted in the receiving opening the teeth in another end position of the blocking slider non-rotatably engage with counter teeth connected with the adjusting ring.

REFERENCES:
patent: 4585077 (1986-04-01), Bergler
patent: 4621818 (1986-11-01), Rohm
patent: 4775159 (1988-10-01), Manschitz

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