Ratchet screwdriver

Details Ratchet screwdriver Ratchet screwdriver

B - Operations, Transporting

25

B

81/30

B25B 15/04 (2006.01) B25B 13/46 (2006.01)

Patent

CA 1301493

ABSTRACT A ratchet screwdriver contains a magnetic clutch assembly which is accessible by external switching means. The switching means can alternately switch the clutch assembly from a first position to a second position and vice-versa. When the clutch assembly is in the first position the handle will be in a fixed relationship with the shaft and head when the handle is turned in a clockwise direction but will rotate relative to the shaft and head when the handle is turned in a counterclockwise direction. Alternatively, when the clutch assembly is in the second position, the handle will be in a fixed position relative to the shaft and head when the handle is turned in a counterclockwise direction but will rotate relative to the shaft and head when the handle is turned in a clockwise direction. Previous ratchet drivers do not operate smoothly or they are much too complex.

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