公开(公告)号：US20070126251A1

公开(公告)日：2007-06-07

申请号：US11567433

申请日：2006-12-06

申请人： Brian Olson ,  Darold Eklund ,  Rose Shiels

发明人： Brian Olson ,  Darold Eklund ,  Rose Shiels

IPC分类号： B66C1/34

CPC分类号： B66C1/36 ,  F16B45/02 ,  F16G17/00

摘要： A lock apparatus for a chain grab hook comprises a locking member adapted to be pivotally attached to the clevis of the chain grab hook about a pivot element located between a mid-point of the locking member and the top surface of the clevis. When installed, a bias element is operative to exert a bias force on the locking member urging the front end of the locking member to pivot upward to a closed position wherein the front end of the locking member extends into the open end of the jaw a sufficient distance to prevent a chain link engaged in the jaw from moving out of the open end of the jaw. The front end of the locking member can be pushed downward against the bias force to an open position to release the chain link from the jaw.

摘要翻译： 用于链条牵引钩的锁定装置包括锁定构件，该锁定构件适于围绕位于锁定构件的中点和U形夹的顶表面之间的枢转元件枢转地附接到链条抓钩的U形夹。 当安装时，偏置元件可操作以在锁定构件上施加偏压力，以推动锁定构件的前端向上枢转到关闭位置，其中锁定构件的前端延伸到钳口的开口端部足够 距离以防止接合在钳口中的链节从卡爪的开口端移出。 锁定构件的前端可以抵抗偏压力向下推动到打开位置，以将链节从夹爪释放。