Back to results
US 4,063,342 AGranted
Brake service tool
AssigneeAmmco Tools, Inc.
InventorsWallace F. Mitchell, Clifford A. Evans
Life of this patent
Estimating the term…
Abstract
A single hand tool for removing and applying the springs on automotive brake shoe assemblies includes at one end a member for removing and attaching retainer discs on the hold-down springs and also for removing the shoe-to-anchor springs, and at the other end a spring operated mechanism for attaching the shoe-to-anchor springs to the anchor pin of the brake assembly.
Claims7
A brake service tool, comprising
- a handle,
- a first rigid shank extending from said handle and having an offset lip at the distal end thereof,
- said lip having a concave edge for engaging the anchor pin of a shoe brake assembly,
- a second rigid shank extending from said handle,
- an integral member positioned at the distal end of said second shank,
- said integral member having an inwardly convergent frustoconical recess at the outer end for tightly receiving a hold-down spring retainer disc,
- said integral member having a transverse wall disposed inwardly of said recess and having an off-center circular hole therein for receiving the head of a brake shoe anchor pin, and
- said integral member having an external lug provided with a pair of oppositely directed spiral grooves, the axis of generation of said grooves being coaxial with the center of said circular hole.
5 more elements
A tool for attaching coil springs to a headed pin, comprising
- a rigid shank having a laterally extending lip at one end, said lip having a concave edge,
- an open turn coil spring disposed over said shank with the outer turns free to slide on said shank and the inner turns fixed thereto,
- the outer end of said spring being in proximity to said lip when said spring is unstressed.
Dependencies are inferred from the claim text.