EP 0048482 A1 19820331 - Rotary percussive drill.

Title (en)

Rotary percussive drill.

Title (de)

Drehschlag-Bohrwerkzeug.

Title (fr)

Perceuse rotative à percussion.

Publication

EP 0048482 A1 19820331 (EN)

Application

EP 81107493 A 19810921

Priority

GB 8030556 A 19800922

Abstract (en)

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

B25D 16/00; B23B 45/16

IPC 8 full level

B23B 45/16 (2006.01); B25D 16/00 (2006.01)

CPC (source: EP)

B25D 16/006 (2013.01)

Citation (search report)

DE 2806611 A1 19790823 - LICENTIA GMBH
EP 0029968 A2 19810610 - BLACK & DECKER INC [US]
DE 6906110 U 19690612 - METABOWERKE KG [DE]
US 3998278 A 19761221 - STILTZ ERWIN, et al
DE 2605998 B2 19791025

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