Global Patent Index - EP 1740796 A1

EP 1740796 A1 20070110 - DEVICE FOR RETAINING A SHANK-TYPE PICK

Title (en)

DEVICE FOR RETAINING A SHANK-TYPE PICK

Title (de)

VORRICHTUNG ZUR HALTERUNG EINES SCHAFTMEISSELS

Title (fr)

DISPOSITIF POUR MAINTENIR UN TREPAN A TIGE

Publication

EP 1740796 A1 20070110 (DE)

Application

EP 05715895 A 20050310

Priority

  • EP 2005002513 W 20050310
  • DE 102004019383 A 20040419

Abstract (en)

[origin: WO2005100748A1] The invention relates to a fixing device for a shank chisel (30) comprising a base part (10) to which a chisel holder (20) is attached in a manner that enables it to be exchanged. The chisel holder (20) has a chisel location (28) for the shank chisel (30) and has a supporting face (26) on which the shank chisel (30) can be supported. The chisel holder (20) is coupled to the base part (10) by means of a pivot bearing (25, 19), and the chisel holder (20) rests against a mating face of the base part (10). The aim of the invention is to realize a stress-optimized design for the above-mentioned arrangement. To this end, the invention provides that, when the chisel holder (20) is mounted, the contact area formed between the contact face and the mating face is located between the rotation axis or the rotation path of the pivot bearing (25, 19) and the supporting face (26).

IPC 8 full level

E21C 35/19 (2006.01)

CPC (source: EP US)

E21C 35/19 (2013.01 - EP US); E21C 35/191 (2020.05 - EP); E21C 35/191 (2020.05 - US)

Citation (search report)

See references of WO 2005100748A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2005100748 A1 20051027; AT E553282 T1 20120415; CN 1942654 A 20070404; CN 1942654 B 20111102; DE 102004019383 A1 20051110; DE 102004019383 B4 20080612; EP 1740796 A1 20070110; EP 1740796 B1 20120411; US 2007241605 A1 20071018; US 7547075 B2 20090616

DOCDB simple family (application)

EP 2005002513 W 20050310; AT 05715895 T 20050310; CN 200580011828 A 20050310; DE 102004019383 A 20040419; EP 05715895 A 20050310; US 57888905 A 20050310