TOOL WITH ERGONOMIC HANDLE AND REPLACEABLE CUTTER HEAD
First Claim
Patent Images
1. A hand tool comprising:
- an elongated handle with a recess in one end and a side notch extending laterally in the recess; and
a replaceable head with an operative end, an elongated section shaped to fit stably and securely into the recess for torsional support with the operative end extending from the elongated section, and a latch releasably engaging the side notch to retain the elongated section in the recess against a pull-out force encountered when the operative end is in use;
the operative end including two exposed blade surfaces, one on each side of the handle.
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Abstract
A tool includes an elongated handle with an end recess and a side notch for latching, and a plurality of different replaceable heads. Each replaceable head includes an elongated rectangular section shaped to fit stably into the recess for providing torsional and lateral support, an operative end, and a latch releasably engaging the side notch to retain the head in the recess. The different heads can include different operative ends with structure for providing different operative functions, such as a head with oppositely-positioned partially-shielded blade tips and/or with different blade throat sizes, a head with pizza-cutting wheel, a head with hammer or wrench feature, and the like.
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Citations
21 Claims
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1. A hand tool comprising:
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an elongated handle with a recess in one end and a side notch extending laterally in the recess; and a replaceable head with an operative end, an elongated section shaped to fit stably and securely into the recess for torsional support with the operative end extending from the elongated section, and a latch releasably engaging the side notch to retain the elongated section in the recess against a pull-out force encountered when the operative end is in use;
the operative end including two exposed blade surfaces, one on each side of the handle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus comprising:
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an elongated handle with a longitudinal rectangular recess extending to an open end; and a replaceable head having an elongated section shaped to fit stably into the recess and having an operative end extending from the elongated section and further having a latch adapted to releasably engage the handle to retain the respective head to the handle, the latch including a resilient finger extending from the elongated section and extending generally parallel a length of the elongated section.
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15. A handle for a hand tool comprising:
an elongated handle with a rectangular recess in one end and a side notch extending laterally in the recess;
the recess being adapted and configured to receive and stably support an elongated section of a replaceable head for torsional support, and the side notch being adapted and configured to receive a latch extending from the elongated section to retain the elongated section in the recess against a pull-out force encountered when the replaceable head is in use.- View Dependent Claims (16, 17, 18, 19, 20)
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21. A method of cutting comprising steps of:
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providing a hand tool with a handle and a first releasable replaceable head attached to the handle, the head having two blade surfaces on opposing sides of the handle and further having shields that both protect outer tips of both blade surfaces and also define throats leading to the blade surfaces; cutting material with the blade surfaces by passing material into one of the throats until the two blade surfaces are unacceptably worn; pressing a latch to release the first releasable replaceable head; and attaching a second releasable replaceable head to the handle.
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Specification