EP 1584420 B1 20140611 - Drilling and/or chipping hammer with electro-pneumatic percussion mechanism and device for variable setting of the impact energy
Title (en)
Drilling and/or chipping hammer with electro-pneumatic percussion mechanism and device for variable setting of the impact energy
Title (de)
Bohr- und/oder Meisselhammer mit elektropneumatischem Schlagwerk und einer Vorrichtung zur variablen Einstellung der Schlagenergie
Title (fr)
Marteau perforateur et/ou burineur avec mécanisme de percussion électro-pneumatique et dispositif pour le réglage variable de l'énergie d'impact
Publication
Application
Priority
EP 04101429 A 20040407
Abstract (en)
[origin: EP1584420A1] The drill includes an electromagnetic striking mechanism (15) with a flying piston (4) and an excitation piston (3), through which passes a controllable valve (29) to alter the pressure in the drive pressure cushion (20). This valve may be a slide valve.
IPC 8 full level
B25D 11/00 (2006.01); B25D 11/12 (2006.01); B25D 17/06 (2006.01)
CPC (source: EP)
B25D 11/005 (2013.01); B25D 11/125 (2013.01); B25D 17/06 (2013.01); B25D 2217/0023 (2013.01); B25D 2250/035 (2013.01)
Designated contracting state (EPC)
CH DE FR GB LI SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 04101429 A 20040407