公开(公告)号：US3885309A

公开(公告)日：1975-05-27

申请号：US44222974

申请日：1974-02-13

Applicant: POST OFFICE

Inventor： LUND ALFRED ERNEST ,  HOLBROOK KENNETH HARRY

IPC: B23D21/10 ,  B23D29/02 ,  B26D3/16 ,  H02G1/14 ,  B26B13/04

CPC classification number: B23D29/023

Abstract: A manually operable tool for cutting cables and the like has first and second crossed levers formed with co-operating cutting jaws. A handle pivotable on the first lever has a spring biassed plunger mounted within it which bears against a toothed fulcrum member integral with the second lever. Closure of the jaws is effected by a ratchet action on pivoting the handle; the plunger drives the jaws together during the forward stoke and a retaining pawl locks the jaws in their relative positions during the return stroke. Means are included to effect simultaneous release of the plunger and the retaining pawl from the toothed fulcrum member to enable rapid opening or closure of the jaws.

Abstract translation: 用于切割电缆等的可手动操作的工具具有由合作的切割爪形成的第一和第二交叉杆。 可在第一杠杆上枢转的手柄具有安装在其内的弹簧偏心柱塞，该弹簧支撑在与第二杆一体的齿形支点件上。 钳口的闭合通过在旋转手柄时的棘轮动作来实现; 柱塞在向前行程期间将钳口驱动在一起，并且保持爪在返回行程期间将钳口锁定在其相对位置。 包括装置以实现柱塞和保持爪从有齿支点构件的同时释放，以使得钳口能够快速打开或关闭。