US2324839A - Tool handle - Google Patents

Description

July 20,' 1943. I c. c. HAUMERYSON- TOOL HANDLE Filed Feb. 12, 1941 ii? B 2 J%% Patented July 20, 1943 UNITED STATES PATENT OFFICE 'rooL HANDLE Cliflord C. Haumerson, Janesville, Wis. Application February 12, 1941, Serial No. 378,502

, 1 Claim. My invention relates to readily attachable and detachable tool handles, and more particularly to handles adapted to be afllxed to a standard screw driver or other tools requiring rotation of the handle and pressure on the end thereof to eflect work.

The primary object of my invention is to'provide a tool handle having a rotatable palm rest which, because of its design and consistency, may be quickly and easily attached to and disassembled from standard tool handles of varying diameters.

Another object of my invention is to provide a detachable tool handle having arotatable and cushioned palm rest and a resilient body portion,

said body portion being of such dimension and consistency as to effect a tightening of said body portion upon the handle .when same is gripped and rotated.

1 Another object, of my invention is the provision of a tool holder comprising a body portion to which a rotatable palm rest is affixed. The said body portion is formed of resilient material as to permit ready attachment to and removal from a tool: han the relative proportions of said palm rest and body portion being suchas toprovide for a maximum grip upon said body portion.

A further object of this invention is to provide a simple structure of this character which may be readily and cheaply manufactured.

The above and various other objects and advantages of this invention will in part b described in and in part be understood from the following detailed description of the present preferred embodiment, the same being illustrated in the accompanying drawing herein:

Fig. 1 is a detailed side elevation of my device mounted on a screw-driver handle, a hand being shown dotted in to illustrate the position of the fingers and palm as respects the tool handle.

Fig. 2 is a longitudinal sectional view from the tool handle disassembled from the tool.

Fig. 3 is a top plan view of said tool handle.

Referring to the drawing wherein like numerals of reference designate corresponding parts throughout the several views, the numeral I0 is used generally to indicate the generally cylindrical cap or body portion of thetool handle which is closed at one end by a thick end wall and open at its opposite extremity, forming a relatively long, thin skirt. The member is molded of resilter grippage and has a bead I 2 around the bottom edge of the skirt tostrengthen said edge. In the molding of said body portion an axially aligned shouldered orifice I3 is formed therein which is adapted to receive a. metal sleeve ll, a washer IS, and a rivet I6, said rivet being utilized to assemble the palm rest I! to said body portion, said palm rest being molded with an axially aligned shouldered orifice to receive the rivet it which aflixes and aligns the said palm rest to and with the body portion.

Upon the assembly of the two units, two metal washers l8 and I! are positioned between the body portion and the palm rest to prevent excessive friction and in more expensive units two plates with ball races and ball bearings in said races between the plates may be used.

The assembly of the device consists of forcing the sleeve it into the shouldered aperture in the palm rest, slipping the two washers over the sleeve assembly of that unit into the shouldered orifice in the body portion, positioning a rivet in the sleeve, slipping awasher over the exposed end of the rivet in the shouldered aperture in the body portion and then turning over the end of said rivet. In assembly of the palm rest and body portion the operator must of course use caution as to permit ready rotatability of the palm rest as regards the body portion when the end of the rivet is turned over, it being essential that the body portion have independent rotary movement with respect the palm rest so that the tool over which the body portion i fitted may be rotated or oscillated without causing movement of the said palm rest. I

It will, of course. be understood that various changes and modifications may be made in the details of construction and design of the speciflcally described embodiment of this invention without departing from the spirit thereof, such changes in modification being restricted only by the scope of the following claim.

What is claimed is:

A tool holder, comprising; a readily attachable anddetachable cap including a thick end wall and a relatively thin, elongated elastic skirt extending from said end wall and adapted to encompass and snugly fit various size tool handles; a generally circular cushion palm rest adjacent the exterior of said end wall; and means rotatably securing said cushion palm rest to said end wall, the greatest diameter of said cushion palm rest being substantially less than the diameter of the elastic 'skirt adjacent said end wall.

CLIFFORD C. HAUMERSONd

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