EP 1910038 B1 20081126 - LINEARLY DRIVEN AND AIR-COOLED BORING AND/OR PERCUSSION HAMMER
Title (en)
LINEARLY DRIVEN AND AIR-COOLED BORING AND/OR PERCUSSION HAMMER
Title (de)
BOHR- UND/ODER SCHLAGHAMMER MIT LINEARANTRIEB UND LUFTKÜHLUNG
Title (fr)
MARTEAU PERFORATEUR ET/OU A PERCUSSION A ENTRAINEMENT LINEAIRE ET REFROIDISSEMENT A AIR
Publication
Application
Priority
- EP 2006007394 W 20060726
- DE 102005036560 A 20050803
Abstract (en)
[origin: WO2007014688A1] The invention relates to a boring and/or percussion hammer comprising an electrodynamic linear drive and a pneumatically damped percussion mechanism which is provided with a drive piston (1) driven by the linear drive during the reciprocating movement thereof, an impact piston (3) and a pneumatic spring (7) arranged between the drive and impact pistons. An air-supply device comprises a pumping element (13), which is linearly forth and back movable for generating airflow. The pumping element (13) is connected to the drive piston (1) in such a way that the movement thereof is transmitted to said pumping element (13), thereby the cooling air is transported by an air channel (15) for cooling heat generated elements (12).
IPC 8 full level
B25D 11/06 (2006.01); B25D 17/20 (2006.01)
CPC (source: EP US)
B25D 11/064 (2013.01 - EP US); B25D 17/20 (2013.01 - EP US); B25D 2216/0015 (2013.01 - EP US); B25D 2217/0023 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE ES IT LI SE
DOCDB simple family (publication)
DE 102005036560 A1 20070208; CN 101277792 A 20081001; CN 101277792 B 20130410; DE 502006002214 D1 20090108; EP 1910038 A1 20080416; EP 1910038 B1 20081126; ES 2316084 T3 20090401; JP 2009502535 A 20090129; JP 5130213 B2 20130130; US 2008314608 A1 20081225; WO 2007014688 A1 20070208
DOCDB simple family (application)
DE 102005036560 A 20050803; CN 200680027776 A 20060726; DE 502006002214 T 20060726; EP 06762834 A 20060726; EP 2006007394 W 20060726; ES 06762834 T 20060726; JP 2008524405 A 20060726; US 99763506 A 20060723