A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Disclosed is a quick coupler for a construction machine to allow the detachable attachment of attachments such as a bucket to the bottom of an arm. According to the present invention, the quick coupler for a construction machine to fixate an attachment to the bottom of a work tool includes: a coupler body connected to the bottom of the work tool; a first hook fixated to one side of the coupler body to be rotated in order to be locked to or unlocked from a first joint pin of the attachment; a second hook fixated to the other side of the coupler body to be locked to or unlocked from a second joint pin in a position to face the first joint pin; a first hydraulic cylinder of which one end is fixated to the coupler body and the other end is fixated to a predetermined position of the first hook to allow the first hook to be locked to or unlocked from the first joint pin when extended; and a second hydraulic cylinder of which one end is fixated to the coupler body and the other end is fixated to a predetermined position of the second hook to be extended in order to lock the second hook to the second joint pin after the first hydraulic cylinder is extended to lock the first hook to the first joint pin.
Disclosed is a quick coupler for a construction machine to allow the detachable attachment of attachments such as a bucket to the bottom of an arm. According to the present invention, the quick coupler for a construction machine to fixate an attachment to the bottom of a work tool includes: a coupler body connected to the bottom of the work tool; a first hook fixated to one side of the coupler body to be rotated in order to be locked to or unlocked from a first joint pin of the attachment; a second hook fixated to the other side of the coupler body to be locked to or unlocked from a second joint pin in a position to face the first joint pin; a first hydraulic cylinder of which one end is fixated to the coupler body and the other end is fixated to a predetermined position of the first hook to allow the first hook to be locked to or unlocked from the first joint pin when extended; and a second hydraulic cylinder of which one end is fixated to the coupler body and the other end is fixated to a predetermined position of the second hook to be extended in order to lock the second hook to the second joint pin after the first hydraulic cylinder is extended to lock the first hook to the first joint pin.
QUICK COUPLER FOR CONSTRUCTION MACHINE
KANG HYUK GYU (author)
2015-08-18
Patent
Electronic Resource
Korean
IPC:
E02F
Baggern
,
DREDGING
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