Ergonomic handle and driver incorporating same

Details Ergonomic handle and driver incorporating same Ergonomic handle and driver incorporating same

1998-03-18

2000-06-27

Scherbel, David A.

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

81 60, 811771, 81489, D8 25, D8107, B25B 1346

Patent

active

060792981

ABSTRACT:
A palm driver has a rotatable drive member and an ergonomic handle body connected to the drive member through a ratchet mechanism and covered by a cushioning grip. The handle body is asymmetrically curved and is substantially continuously convex along portions engageable in use with the user's hand, having a generally flattened top surface opposite the drive member and receivable in the user's palm, and a peripheral side surface which has a plan outline which is continuously convex and has a generally flattened heel portion and an opposed, much smaller radius finger portion, respectively engageable with the heel and fingers of the user's hand in use.

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Snap-on Tools Catalog, p. 63, showing Model F714 Palm Style Ratchet Drive *no date*.

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