公开(公告)号：US5601041A

公开(公告)日：1997-02-11

申请号：US530668

申请日：1995-09-20

Applicant: James Boyde

Inventor： James Boyde

IPC: A01C5/06 ,  A01C7/20 ,  A01C5/00

CPC classification number: A01C5/062 ,  A01C7/201

Abstract: A scissor-type jack is used to separate the yoke that holds a drill boot. The jack or separator is expanded to bend the yoke outward thereby allowing the drill to disengage from the yoke. A replacement boot or the repaired boot is installed in the yoke and the separator contracted until the boot reengages the yoke. The separator expands and contracts responsive to the rotation of a hexagonal head that can be rotated by a conventional socket using a ratchet.

Abstract translation: 剪刀式千斤顶用于分离保持钻头的轭。 千斤顶或分离器被膨胀以向外弯曲轭，从而允许钻头与轭脱开。 替换靴子或修理的靴子安装在轭架中，并且分离器收缩直到靴子重新接合轭架。 响应于六角形头部的旋转，隔板膨胀和收缩，该六角形头部可以通过使用棘轮的常规插座旋转。