US3841176A

US3841176A - Hand tool for installing brake shoes

Info

Publication number: US3841176A
Application number: US00397332A
Authority: US
Inventors: A Murphy
Original assignee: Lee Raymond Organization Inc
Current assignee: Lee Raymond Organization Inc
Priority date: 1973-09-14
Filing date: 1973-09-14
Publication date: 1974-10-15
Anticipated expiration: 1991-10-15

Abstract

A hand tool used in installing brake shoes comprising: an elongated shaft having one end bent at right angles and having a uniform circular cross section of a first diameter; and a rod having a uniform circular cross section with a second and smaller diameter, the rod being parallel to and extending in the same direction as the bent end while being secured at one end to the shaft adjacent but spaced from the bent end. The rod, shaft and bent end are coplanar. The bent end and the rod are of like length.

Description

United States Patent [1 Murphy [451 Oct. 15, 1974 HAND TOOL FOR INSTALLING BRAKE SHOES Inventor: Adron Murphy, Farmington, Mich.

Assignee: The Raymond Lee Organization,

Inc., New York, NY. a part interest Filed: Sept. 14, 1973 Appl. No.: 397,332

US. Cl. 81/3 R, 72/458 Int. Cl. B25b Field of Search 81/3 R; 72/458; 140/106 References Cited UNITED STATES PATENTS 11/1929 Fehchaber ..72/458 10/1931 Jacquesson ..72/458 FOREIGN PATENTS OR APPLICATIONS 206.252 ll/l959 Austria ..72/458 498,408 5/1930 Germany 72/458 Primary Examiner-James L. Jones. Jr.

[57] ABSTRACT A hand tool used in installing brake shoes comprising: an elongated shaft having one end bent'at right angles and having a uniform circular cross section of a first diameter; and a rod having a uniform circular cross section with a second and smaller diameter, the rod being parallel to and extending in the same direction,

as the bent end while being secured at one end to the shaft adjacent but spaced from the bent end. The rod,

shaft and bent end are coplanar. The bent end and the rod are of like length.

2 Claims, 3 Drawing Figures 1 HAND TOOL FOR INSTALLING BRAKE SHOES SUMMARY OF THE INVENTION This invention relates to the installation of brake shoes on type F250 and F350 Ford trucks and more particularly relates to the installation of brake shoe hold down springs and the retaining pins,

The conventional method of hooking the retaining pin on the hold down spring is to apply pressure to the spring with a screw driver and connecting the pin while holding the brake shoe and spring in place with the backing plate. This method is difficult and time consuming.

This invention is a hand tool which enables the user to have one hand free to hook the retaining pin on the hold down spring. The tool takes the form of an elongated shaft having one end bent at right angles and having a handle at the other end. The shaft has a uniform circular cross section of a first diameter. A rod parallel to the bent end, is of like length and extends in the same direction. One end of the rod is secured to the shaft. The rod, shaft and bent end are coplanar. The rod has a uniform circular cross section with a second and smaller diameter. The resultant tool can be used as described below to reduce installation time and effort while eliminating risk of injury caused by slippage of screw driver or backing plate when the conventional method is used.

BRIEF DESCRIPTION OF THE DRAWINGS In the drawings:

FIG. I shows the invention in use;

FIG. 2 is an end view of the hand tool; and FIG. 3 is a side view of the hand tool.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS Referring now first to FIGS. 2 and 3, a metal shaft has a main portion typically 9 inches long and having one end 12 bent at right angles, end 12 having an overall length including the diameter of the shaft of 2% inches. The shaft including the end has a uniform diameter of inch. A handle grip 14 having an outer diameter of A inch and being 2% inches long is secured to the opposite end of the shaft.

A rod 16 5/16 inch in diameter is of like length (including the diameter of the shaft) to end 12, is parallel thereto and extends in the same direction, being secured at one end to the shaft and spaced at inch away from bent end 12. Qther dimensions for each part can of course be used as desired] Referring now to FIG. 1, hold down spring 40 is placed in shoe 42 with end 12 disposed inside the coil of the spring. Handle 14 is pressed towards the top of the backing plate enough to hook retaining pin over the spring. Rod 'l6'then depresses the retaining pin end of the spring for hook up of retaining pin and will also hold the shoe firmly against the backing plate.

While I have described my invention with particular reference to the drawings, such is not to be considered as limiting its actual scope.

Having thus described this invention, what is asserted as new is:

l. A hand tool used in installing brake shoes by hooking a retaining pin over a hold down spring placedin a brake shoe and then depressing the retaining pin end of the spring for hook up of the retaining pin while holding the shoe firmly against the backing plate, said tool comprising:

an elongated shaft having one end bent at right angles to the body of the shaft and having a handle grip at the other end, said shaft having a uniform circular cross section with a first diameter, said one shaft end engaging the coil of said spring when the tool is in use; and

a rod having a uniform circular cross section with a second and smaller diameter, the rod being parallel to the bent end and secured at one end to the shaft at a position adjacent but spaced from the bent end, the rod extending in the same direction as the bent end and being of like length, the rod, shaft and bent end being coplanar, the rod depressing the retaining pin end of the spring when the tool is in use.

2. The tool of claim 1 wherein the first diameter is inch, the second diameter is 5/16 inch, the separation between the rod and bent end is /2 inch, the shaft is 9 inches long and both bent end and rod extend outward from the shaft for the same overall length, including the diameter of the shaft, of 2-% inches.

Claims

1. A hand tool used in installing brake shoes by hooking a retaining pin over a hold down spring placed in a brake shoe and then depressing the retaining pin end of the spring for hook up of the retaining pin while holding the shoe firmly against the backing plate, said tool comprising: an elongated shaft having one end bent at right angles to the body of the shaft and having a handle grip at the other end, said shaft having a uniform circular cross section with a first diameter, said one shaft end engaging the coil of said spring when the tool is in use; and a rod having a uniform circular cross section with a second and smaller diameter, the rod being parallel to the bent end and secured at one end to the shaft at a position adjacent but spaced from the bent end, the rod extending in the same direction as the bent end and being of like length, the rod, shaft and bent end being coplanar, the rod depressing the retaining pin end of the spring when the tool is in use.

2. The tool of claim 1 wherein the first diameter is 3/8 inch, the second diameter is 5/16 inch, the separation between the rod and bent end is 1/2 inch, the shaft is 9 inches long and both bent end and rod extend outward from the shaft for the same overall length, including the diameter of the shaft, of 2-1/4 inches.