Patent ID: 9302385
Filing Date: 2016-04-05
CPC Classification: B25G,Y10T

Claim Text:
1. A rotation control device for a tool comprising: a handle with a first toothed portion; a tool head pivotally connected to the handle and having two second toothed portions; two identical gear wheels disposed between the handle and the tool head, wherein the two identical gear wheels are selectively adjusted between a close position where the two gear wheels are close to each other and a separated position where the two gear wheels are separated and located away from each other, wherein each of the two identical gear wheels is provided with a toothed portion on an outer periphery thereof, a receiving groove in an inner surface thereof, and a protrusive press portion on an outer surface thereof, wherein the toothed portions of the two identical gear wheels are selectively engaged with first toothed portion of the handle or simultaneously engaged with the first and second toothed portions, wherein the press portion of each of the two identical gear wheels is smaller in outer diameter than the toothed portion of the respective gear wheel, wherein when in the close position, the toothed portions of the two identical gear wheels are engaged with the first toothed portion of the handle, with the handle and the tool head pivotable with respect to each other, and wherein when in the separated position, the toothed portions of the two identical gear wheels are engaged with the first and second toothed portions simultaneously, with the handle and the tool head fixed in a non-rotatable manner to each other; and a spring disposed between the two identical gear wheels and having two ends pressed against the receiving grooves of the two identical gear wheels to maintain the two identical gear wheels in the separated position in normal conditions.