EP 0048482 B1 19841017 - ROTARY PERCUSSIVE DRILL
Title (en)
ROTARY PERCUSSIVE DRILL
Publication
Application
Priority
GB 8030556 A 19800922
Abstract (en)
[origin: EP0048482A1] A mode change mechanism for a rotary percussive drill comprises locking balls (13) engaged in axial recesses (10) in a beat piece (7) that transmits percussion from a percussive drive (5, 6) to a drill bit and a rotary collar (16) for moving the locking balls (13) and the beat piece (7) from a position in which the beat piece is able to transmit percussion to one in which transmission cannot take place.
IPC 1-7
IPC 8 full level
B23B 45/16 (2006.01); B25D 16/00 (2006.01)
CPC (source: EP)
B25D 16/006 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0048482 A1 19820331; EP 0048482 B1 19841017; AT E9881 T1 19841115; DE 3166719 D1 19841122
DOCDB simple family (application)
EP 81107493 A 19810921; AT 81107493 T 19810921; DE 3166719 T 19810921