Speed wrench

Details Speed wrench Speed wrench

1975-08-13

1976-03-23

Jones, Jr., James L.

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

B25B 1300

Patent

active

039452743

ABSTRACT:
A hand tool of the ratchet type is provided with a planetary gear system to enable the user to vary the output speed of the tool. In the preferred embodiment a ratched type socket wrench is provided with a planetary gear system and a hand grip in the form of a cap covering the system, with the sun gear coupled to the output, the tool handle coupled to the planet carrier and the hand grip coupled to the ring gear. If the hand grip is held against rotation by the operator while the handle is turned, the output will be driven at a speed greater than that of the handle, thus over-running the ratchet. If the resistance offered by the driven object, e.g. a nut, becomes large enough so that the hand grip may not conveniently be held, the operator may release the hand grip or slacken his hold thereof thus allowing the ratchet to engage and lock the handle to the output so that the handle will directly drive the output.

REFERENCES:
patent: 1601767 (1926-10-01), Peterson
patent: 2520443 (1950-08-01), Seaquist
patent: 3532013 (1970-10-01), Haznar
patent: 3713356 (1973-01-01), Knudsen
patent: 3762245 (1973-10-01), Smyers

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