EP 0016771 B1 19831221 - HAND MECHANICAL TOOL
Title (en)
HAND MECHANICAL TOOL
Publication
Application
Priority
DE 2820125 A 19780509
Abstract (en)
[origin: WO7901041A1] A power-driven hand mechanical tool, operating in particular as a drilling or percussive machine, wherein a rotating mandrel (20) with an air percussive part (13) are movable. The percussive part (13) comprises a concentric driving sheathing (28) which has a guiding surface (30) with maximum (32) and minimum (33) axial curve, said curve being closed and presenting an inclination which increases and decreases constantly. A claw (31) clamp onto a neighbouring location of the guiding surface (30) at the immediate vicinity of the driving piston (21) of the percussive device (13). A fastener (35) prevents the claw (31) from moving freely without guiding along the guiding surface (30) while, in the axial direction, the claw is held with some degree of freedom for sweeping a guiding surface (30).
IPC 1-7
IPC 8 full level
B23B 45/02 (2006.01); B25D 11/08 (2006.01); B25D 11/10 (2006.01); B25D 16/00 (2006.01)
CPC (source: EP)
B25D 11/10 (2013.01); B25D 16/00 (2013.01); B25D 2211/003 (2013.01); B25D 2211/064 (2013.01); B25D 2250/025 (2013.01)
Designated contracting state (EPC)
CH DE GB
DOCDB simple family (publication)
WO 7901041 A1 19791129; DE 2820125 A1 19791122; DE 2966493 D1 19840126; EP 0016771 A1 19801015; EP 0016771 B1 19831221; PL 215451 A1 19800310
DOCDB simple family (application)
EP 7900033 W 19790504; DE 2820125 A 19780509; DE 2966493 T 19790504; EP 79900542 A 19791205; PL 21545179 A 19790508