EP 3040482 A4 20170419 - QUICK COUPLER FOR CONSTRUCTION MACHINE
Title (en)
QUICK COUPLER FOR CONSTRUCTION MACHINE
Title (de)
SCHNELLKUPPLUNG FÜR BAUMASCHINE
Title (fr)
ATTACHE RAPIDE POUR ENGIN DE CONSTRUCTION
Publication
Application
Priority
KR 2013007851 W 20130830
Abstract (en)
[origin: EP3040482A1] A quick coupler for a construction machine according to the present invention comprises: a main body provided with hook parts respectively protruding from a left side wall and a right side wall in order to support a coupling-clamp pin; a hydraulic cylinder including a large chamber and a small chamber, a wedge fixing member fixed to the inlet of the large chamber and a rod for performing an extension operation and a retraction operation by oil pressure and moving in the opposite direction from the wedge fixing member during the extension operation; a first wedge fixed to the outside end portion of the wedge fixing member and coupled to or released from the coupling-clamp pin by the movement of the hydraulic cylinder; a second wedge provided with a guide protruding from a body part and fixed to the outside end portion of the rod so as to be coupled to or released from the coupling-clamp pin by moving in the opposite direction from the first wedge; and a stopper provided between the hydraulic cylinder and the second wedge and setting a coupling-releasing position in the main body so as to restrain the movement of the hydraulic cylinder and the second wedge.
IPC 8 full level
CPC (source: EP)
E02F 3/3627 (2013.01); E02F 3/364 (2013.01)
Citation (search report)
- [XI] WO 2006083172 A1 20060810 - GJERSTAD MEK IND AS [NO], et al
- [XI] GB 2492850 A 20130116 - MONAGHAN CONOR [IE]
- [X] US 2009311086 A1 20091217 - STEIG JR KENNETH M [US], et al
- [A] EP 2362024 A2 20110831 - VIBY ATTACHMENT WORLDWIDE AS [DK]
- See references of WO 2015030282A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3040482 A1 20160706; EP 3040482 A4 20170419; KR 20160041944 A 20160418; WO 2015030282 A1 20150305
DOCDB simple family (application)
EP 13892160 A 20130830; KR 2013007851 W 20130830; KR 20167004767 A 20130830