Title:
CHISEL HOLDER, AND CHISEL HOLDER SYSTEM COMPRISING A CHISEL HOLDER AND A BASE PART
Document Type and Number:
WIPO Patent Application WO/2012/072802
Kind Code:
A3
Abstract:
A chisel holder comprises a body zone (12) having a chisel receiving opening (18) that is open at least in the direction of a chisel insertion end (14) of the body zone (12), and also comprises a fastening shaft (26) which extends from a supporting end (20) of the body zone (12) and has a longitudinal shaft axis. A fastening member-affecting zone is provided on a first side of the fastening shaft (26), and a supporting zone (78) that has supporting surface regions (88, 90) which are inclined relative to each other and adjoin each other in a transition zone (92) extending in the direction of the longitudinal shaft axis is provided on a second side of the fastening shaft (26), said second side lying opposite the first side relative to the longitudinal shaft axis. Said chisel holder is characterized in that the transition zone (92) is designed like a cavity, or/and at least some sections of at least one supporting surface region (88, 90) project radially outward from a basic outer peripheral surface (94) of the fastening shaft (26) in relation to the longitudinal shaft axis.
Inventors:
LEHNERT THOMAS (DE)
BUHR KARSTEN (DE)
LENZ MARTIN (DE)
BARIMANI CYRUS (DE)
HAEHN GUENTER (DE)
KAMMERER KARL (DE)
DIESNER BERNHARD (AT)
ROTH MARKUS (DE)
BUHR KARSTEN (DE)
LENZ MARTIN (DE)
BARIMANI CYRUS (DE)
HAEHN GUENTER (DE)
KAMMERER KARL (DE)
DIESNER BERNHARD (AT)
ROTH MARKUS (DE)
Application Number:
PCT/EP2011/071642
Publication Date:
November 22, 2012
Filing Date:
December 02, 2011
Export Citation:
Assignee:
WIRTGEN GMBH (DE)
LEHNERT THOMAS (DE)
BUHR KARSTEN (DE)
LENZ MARTIN (DE)
BARIMANI CYRUS (DE)
HAEHN GUENTER (DE)
KAMMERER KARL (DE)
DIESNER BERNHARD (AT)
ROTH MARKUS (DE)
LEHNERT THOMAS (DE)
BUHR KARSTEN (DE)
LENZ MARTIN (DE)
BARIMANI CYRUS (DE)
HAEHN GUENTER (DE)
KAMMERER KARL (DE)
DIESNER BERNHARD (AT)
ROTH MARKUS (DE)
International Classes:
E21C35/18; E21C35/193
Domestic Patent References:
| WO2010051593A1 | 2010-05-14 |
Foreign References:
| US20080093912A1 | 2008-04-24 | |||
| US6685273B1 | 2004-02-03 | |||
| DE102009059189A1 | 2011-06-22 |
Attorney, Agent or Firm:
RUTTENSPERGER, Bernhard et al. (Postfach 860 820, München, DE)
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