Brake spring service tool
AssigneeSnap-on Incorporated
InventorsKirk E. Mellits, Dean J. Iwinski
Life of this patent
Estimating the term…
Abstract
A tool includes a solid block body unitary with a plurality of equidistantly spaced-apart blades which project from the body in the same direction, each blade having flat planar opposed faces with the faces of all of the blades being parallel to one another. The faces of each blade are chamfered at the distal ends thereof and are spaced apart by a pair of opposed parallel side surfaces, each inclined to the planes of the faces at an angle which approximates the complement of the helix angle of an associated spring, to facilitate insertion of the blades between the spring convolutions when the spring is extended, to maintain it in its extended condition.
Claims13
A tool for maintaining in an axially extended condition a helical spring including a wire of a predetermined thickness coiled into a plurality of convolutions with a predetermined helix angle, said tool comprising:
- a body including at least three blades substantially equidistantly spaced apart along an axis by a distance at least as great as the predetermined thickness of the spring wire, each of said blades terminating at a distal end and having a pair of opposed substantially parallel flat planar faces, each of said faces being chamfered at the distal end of the associated blade, each of said faces being inclined at substantially the predetermined helix angle with respect to a plane perpendicular to said axis, whereby said blades are disposable alternately between convolutions of the spring when it is in its axially extended condition to prevent contraction thereof.
A tool comprising:
- a body, and at least three substantially equidistantly spaced-apart blades integral with said body and projecting in the same direction therefrom, each of said blades having opposed substantially flat planar faces with the faces of all of said blades being substantially parallel with one another, the opposed faces of each blade being spaced apart by a pair of opposed substantially parallel side surfaces with each of said side surfaces being inclined at a predetermined non-orthogonal angle with respect to the planes of said faces.
Dependencies are inferred from the claim text.