초록 ▼

The hand tool in the exemplary situation constitutes a plastic rake head and a readily removable wooden handle. To assure retention of the handle, a chordal groove or transverse notch is provided near one end thereof, and the sleeve or socket portion of the rake into which the end of the handle is i

The hand tool in the exemplary situation constitutes a plastic rake head and a readily removable wooden handle. To assure retention of the handle, a chordal groove or transverse notch is provided near one end thereof, and the sleeve or socket portion of the rake into which the end of the handle is inserted is provided with a latch mechanism which includes a resilient tongue on the free end of which is carried a dog biased into the groove or notch through an opening in the sleeve so as to releasably latch the handle to the rake head. To prevent twisting of the handle, the bore of the sleeve is formed with a longitudinal key and a keyway is formed in the end portion of the wooden handle. The bore or socket curves inwardly at two angularly spaced locations, one to either side of the longitudinal key, to form resilient ribs having sawtooth splines thereon engageable with the inserted end portion of the handle, there being a slit near one end of such rib so that the ribs can more readily be flexed outwardly to firmly hold handles of somewhat differing diameters, assisted by flat surface ribs located diametrically opposite the ribs with the splines thereon. Various tools of different sizes and types can be substituted one for the other; yet, only a single handle is required.

대표청구항 ▼

In combination with a hand tool, means forming a generally cylindrical socket connected to said tool, said means having an opening at one end for permitting the insertion of a generally cylindrical end portion of an elongated handle into said socket and a plurality of resilient sawtooth splines inte

In combination with a hand tool, means forming a generally cylindrical socket connected to said tool, said means having an opening at one end for permitting the insertion of a generally cylindrical end portion of an elongated handle into said socket and a plurality of resilient sawtooth splines integral with said means, said sawtooth splines projecting into said socket for flexibly and releasably engaging a segmental surface of the cylindrical end portion of a handle, said socket means including at least one inwardly curving resilient longitudinal rib extending into said socket and said plurality of sawtooth splines being on said rib.