IL45324A

IL45324A - Hand tool connection and trim collar therefor

Info

Publication number: IL45324A
Application number: IL45324A
Authority: IL
Original assignee: Stanley Works
Priority date: 1973-09-12
Filing date: 1974-07-22
Publication date: 1976-02-29
Also published as: CA1004120A; SE7410992L; JPS5055973A; ES429196A1; AU7294674A; IT1027560B; BR7407568D0; DK480574A; FR2243059B1; FR2243059A1; DE2443193A1; IL45324A0; ZA745791B; US3874433A; GB1409230A

Abstract

A connection between a hammer head and a handle resting in the eye of the head but free of direct contact therewith to provide an annular space extending fully around the handle includes a pre-formed annular trim collar at the entrance end of the eye, a pair of non-crushable metal fillers traversing the axis of percussion of the tool head and an impact resistant resin bonding the assembly together. The collar is comprised of an exposed trim portion and a concealed plug portion having substantially the same cross-sectional dimensions as the annular space. The plug portion is disposed within the annular space by a force fit connection to effectively seal the entrance end of the eye and a tapered exterior trim surface extending from the shoulder toward the handle. [US3874433A]

Claims

WE CLAIM:

1. A hand tool for percussive use comprising a tool head having a striking surface, an axis of percussion extending through said head from said striking surface and a handle-receiving eye spaced from said striking surfaco and extending entirely through said head along an axis normal to the axis of percussion, said eye having an entrance end and an outer end; a reinforced fiber handle having a portion positioned within the eye a sufficient distance to intersect said axis of percussion and extending, outwardly from the entrance end of the eye, said handle portion being free of direct contact with the tool head to provide an annular space extending fully around the handle and axially along the handle between the handle portion and the tool head; a preformed annular trim collar sealably interconnecting the handle and the tool head at the entrance end of the eye comprised of an exposed trim portion and a concealed plug portion having substantially the same cross-sectional dimension as the annular space and being disposed within the space to effective seal the space at the entrance end of the eye, said plug portion being of an insufficient length to extend through the axis of percussion and bein held in positon by a force fit interconnection with the tool head within the eye, said trim portion including an outwardly projecting shoulder for engaging the tool head adjacent the periphery of the eye at the entrance end thereof and a tapered exterior trim surface extending from . the shoulder toward the handle; and an impact resistant resin disposed within said annular space at said axis of percussion for bondabl oinin said head, said handle and

2. The hand tool of Claim 1 wherein the trim collar includes a plurality of, integral handle- aligning legs extending inwardly of the entrance end of the eye from the plug portion, said legs being spaced around the handle for secure aligning engagement therewith.

3. The hand tool of Claim liincluding non-crushable filler means disposed within the annular space and intersecting the axis of percussion, said filler means bein bondably retained by the impact resistant resin and enhancing the durability of the tool under compression load conditions . ;

4. The hand tool of Claim 1 wherein the handle-receiving eye is of generally rectangular cross-section and is defined by opposed walls extending axially from the entrance end of the eye in substantial parallelism for a distance insufficient to readh the axis of percussion of the tool head and diverging toward the outer end as they inter-sect the axis of percussion, said handle portion being of generally rectangular cross -section and said plug portion including a plurality of integral aligning legs extending inwardly of the entrance end of the eye and engaging the handle. and the walls of the eye at diagonally spaced corners thereof.

5. The hand tool of Claim 1 wheTein the trim collar is a plastic material and the plug portion is provided with laterally extending recesses , said resin being received within said recesses for: nterlocking the rim collar thereto*

6. The hand tool o£ Claim 1 wherein the handle, is a reinforced glass fiber rod of uniform generally tri-. angular cross-section throughout its length and the trim collar is provided with integral upstanding alignment legs engaging the corners of the handle. · „

7. The hand tool. of Claim 1 including wedge-shaped metal fillers, the eye in the tool head divergin toward the outer end thereof, the. fillers having a greater taper than the gap defined by the handle portion and the eye whereby the innermost end of the fillers are spaced from the handle portion and the tool head and the resin is disposed therein.

8. A ring-like trim collar for sealably interconnecting a tool handle with the entrance end of a handle-receiving eye in a percussive tool head comprising a plug portion defining . an axial aperture of a cross-sectional size and shape of the tool handle and an outer periphery of a size and shape suffici¾Ttt to provide an interference fit with the eye of the tool head at the entrance end thereof and a trim portion integral with the plug portion and defining an axial aperture substantially coextensive with the aperture in the plug portion, said trim portion including an outwardly projecting shoulder extending from the outer periphery of said plug portion for! abutting engagement with the tool head adjacent the entrance end of the eye, and a plurality . of handle- aligning legs extending from said plug portion, axially in a direction away from said shoulder.