Importance

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Abstract

Handles allow hand tools, implements or other utensils to operate within their arc of natural use, motion and attack without requiring extension, flexion, radial deviation, or lunar deviation of the wrist from the neutral plane of the forearm. The preferred embodiments further include a grip shaped to increase the effectiveness of the tool and minimize antagonism between muscles and tendons of the wrist, forearm and upper arm, while maximizing the effectiveness of the gripping force delivered to it by the user. Maintaining the wrist and forearm in a neutral position increases a tool user's potential strength by increasing the synergy between large muscles of the forearm and upper arm and shoulders. Ornamental tool designs, manufacturing techniques, and packaging options are also disclosed.

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First Claim