EP 1425138 B1 20050720 - HAMMER DRILL AND/OR PERCUSSION HAMMER WITH NO-LOAD OPERATION CONTROL THAT DEPENDS ON APPLICATION PRESSURE
Title (en)
HAMMER DRILL AND/OR PERCUSSION HAMMER WITH NO-LOAD OPERATION CONTROL THAT DEPENDS ON APPLICATION PRESSURE
Title (de)
BOHR- UND/ODER SCHLAGHAMMER MIT ANPRESSDRUCKABHÄNGIGER LEERLAUFSTEUERUNG
Title (fr)
MARTEAU PERFORATEUR ET/OU A PERCUSSION A COMMANDE DE RALENTI DEPENDANT DE LA PRESSION APPLIQUEE
Publication
Application
Priority
- DE 10145464 A 20010914
- EP 0210253 W 20020912
Abstract (en)
[origin: WO03024672A1] A percussion hammer drill and/or percussion hammer that can be guided by a handgrip (2) comprises a pneumatic spring striking mechanism with a reciprocating drive piston (11) and with a percussion piston (12) that can be operated by the drive piston. A cavity (13) for accommodating a pneumatic spring is provided between the drive piston (11) and the percussion piston (12). The cavity (13) can be connected to the surrounding area via a no-load operation channel (23, 24, 25) in order to achieve a no-load operation. To this end, a valve (19) is situated inside the no-load operation channel and can be controlled according to an application force that can be applied to the handgrip (2) by the operator.
IPC 1-7
IPC 8 full level
B23B 45/16 (2006.01); B25D 11/00 (2006.01); B25D 16/00 (2006.01); B25D 17/04 (2006.01); B25F 5/00 (2006.01)
CPC (source: EP US)
B25D 11/005 (2013.01 - EP US); B25D 16/00 (2013.01 - EP US); B25D 17/043 (2013.01 - EP US); B25D 2211/003 (2013.01 - EP US); B25D 2211/068 (2013.01 - EP US); B25D 2250/035 (2013.01 - EP US); B25D 2250/131 (2013.01 - EP US); B25D 2250/221 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE ES IT LI SE
DOCDB simple family (publication)
WO 03024672 A1 20030327; DE 10145464 A1 20030410; DE 10145464 C2 20030828; DE 50203692 D1 20050825; EP 1425138 A1 20040609; EP 1425138 B1 20050720; ES 2243767 T3 20051201; JP 2005502488 A 20050127; JP 4243539 B2 20090325; US 2004177981 A1 20040916; US 6913088 B2 20050705
DOCDB simple family (application)
EP 0210253 W 20020912; DE 10145464 A 20010914; DE 50203692 T 20020912; EP 02777083 A 20020912; ES 02777083 T 20020912; JP 2003528359 A 20020912; US 48567304 A 20040130