Hand tool with removable extension handle
AssigneeMax Langenstein Feld- und Gartengerate GmbH & Co.
InventorRuedi Fellmann
Life of this patent
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Abstract
A tool such as a garden cultivator, squeegee, or paint-roller holder has a relatively short handle provided at its rear end with a relatively deep backwardly open recess. An extension handle has a relatively long front end engageable relatively far into this recess and is provided with a fixed ring formed with a multiple screwthread engageable with a similar formation inside the recess so that the two parts can be locked together by a single revolution relative to each other. At its rear end the extension handle is provided with a cap having a forwardly directed end and screwthread formations similar to that of the front and of the extension handle so that this cap can be placed on the rear end of the short handle of the tool if desired.
Claims9
A tool comprising:
- an implement;
- a relatively short elongated handle having a front end connected to said implement and a rear end formed with a longitudinally backwardly open recess and having a longitudinally backwardly directed rim surrounding this recess;
- a relatively long extension handle having a front end formed as a longitudinal projection snugly engageable forwardly in said recess and longitudinally slidable and rotatable therein;
- a connecting ring surrounding and fixed longitudinally and rotationally to said extension handle adjacent said front end thereof, said ring having a forwardly directed end face engageable longitudinally flatly against said rim and having a forwardly extending collar extending from said end face toward said front end of said extension handle and engageable inside said recess with said rear end of said short handle;
- and
- means including interengaging generally helical formations on said collar and in said recess of said short handle for locking said handles together screwthread-fashion with said end face bearing longitudinally on said rim.
Dependencies are inferred from the claim text.