Adjustable handle on a hand implement
OwnerFrederick G. Mahoneyinventor
Life of this patent
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Abstract
A hand implement having an adjustable handle which is selectively movable by operation of improved retention means therefor to any of a variety of use positions, each of which corresponds to a handle position perpendicular to one of a plurality of abutment faces located in non-parallel planes, and a reversable tool head in such a hand implement to selectively provide, for each handle position, either right hand or left hand tool orientation.
Claims7
In a hand implement assembly comprised of an implement and a handle mounted on a common base wherein the handle is secured and adjustable with respect to the base by a selectively releasable retention means which is operable to selectively retain the butt end of the handle in firm abutting engagement with any of a plurality of faces which are oriented at differing angles to a longitudinal axis of the implement base and head and wherein the pluarlity of faces include a flat top surface which is oriented transverse to the said longitudinal axis and a plurality of flat flank surfaces which diverge outwardly from said top surface to said base at various angles relative to said top surface to define a plurality of handle positions such that for any of said handle positions the retention means traverses the respective said face within a respective slot structure which communicates with the others of said faces to provide for selective movement of the handle and connected retention means to any said handle position corresponding to a given face, the improved retention means comprising:
- an elongated stem having rotary securing means adjacent one end thereof for securing said handle thereto and for selective adjustment of the longitudinal position of said handle axially of said stem by axial rotation of said handle;
- oblong ball means rigidly secured adjacent the opposite end of said stem with the major axis thereof oriented generally transverse to the axis of said stem;
- pocket means formed in said base to cooperably receive said ball means therein to form a ball and socket pivot joint;
- and
- said pocket means being of such cross sectional form that said ball means is constrained against rotation about the axis of said stem whereby said retention means is constrained against axial rotation to permit axial rotary adjustment of the handle with respect thereto during securing or releasing of the handle with respect to any of said plurality of handle positions.
A hand implement comprising:
- a base member
- a tool head carried by said base member by retention means which permits said tool head to be retained by said base member in at least a pair of use positions;
- said base member including a handle mounting portion comprised of a plurality of planar abutment surfaces residing in a respective plurality of non-parallel planes;
- said retention means comprising an elongated handle securing means cooperable with said base member and said handle for selective retention of said handle in any of a plurality of positions, each of which corresponds to an orientation of said handle perpendicular to one of said abutment surfaces;
- said securing means including an elongated stem and an oblong ball member affixed to said stem with its major axis oriented transverse to the axis of said stem such that said oblong ball cooperates with said base member to form a ball and socket pivot joint wherein said securing means is constrained by said base member against axial rotation;
- and
- said securing means further including rotary means for securing said handle thereto and for selective adjustment of the longitudinal position of said handle axially of said securing means by axial rotation of said handle with respect to said securing means.
Dependencies are inferred from the claim text.