Ergonomic handle and driver incorporating same

B - Operations – Transporting – 25 – G

Patent

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Details

B25G 1/10 (2006.01) B25B 13/46 (2006.01) B25B 15/04 (2006.01) B25B 23/16 (2006.01)

Patent

CA 2288884

A palm driver (10) has a rotatable drive member (35) and an ergonomic handle body (11) connected to the drive member through a ratchet mechanism (37) and covered by a cushioning grip (30). The handle body is asymmetri-cally curved and is substantially contin-uously convex along portions engage-able in use with the user's hand, having a generally flattened top surface (12) opposite the drive member and receiv-able in the user's palm and a periph-eral side surface (16) which has a plan outline which is continuously convex and has a generally flattened heel por-tion (17) and an opposed, much smaller radius finger portion (21), respectively engageable with the heel and fingers of the user's hand in use.

Selon cette invention, un outil à main (10) comprend un élément d'entraînement rotatif (35) et un corps de manche ergonomique (11), relié à l'élément d'entraînement au moyen d'un mécanisme à encliquetage (37) et recouvert d'une poignée à garnissage (30). Le corps de manche présente une courbure asymétrique et a une forme convexe sensiblement continue le long des parties qui, lors de l'utilisation, entrent en prise avec la main de l'utilisateur. Il possède une surface supérieure (12) généralement plate, opposée à l'élément d'entraînement et rentrant dans la paume de l'utilisateur, et une surface latérale périphérique (16) qui possède un contour plat, convexe et continu, ainsi qu'une partie talon (17) généralement aplatie, de même qu'une partie opposée (21) à rayon beaucoup moins important, destinée aux doigts. Pendant l'utilisation, elle entre en prise avec le talon de la main et les doigts de l'utilisateur.

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