Crossbow cocking crank
First Claim
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1. A crossbow crank comprising:
- a housing;
a shaft rotatable with respect to said housing, said shaft comprising a first length portion having a first cross-sectional shape and a second length portion having a second cross-sectional shape that is different from said first cross-sectional shape;
a one-way mechanism arranged to prevent rotation of said shaft in a first rotational direction; and
a release mechanism having a first position and a second position, said release mechanism moving along a length of said shaft between said first position and said second position, said release mechanism positioned over said second length portion and rotationally engaged with said shaft second length portion in said first position, said release mechanism positioned over said first length portion in said second position, said release mechanism not rotationally engaged with said shaft in said second position; and
wherein said one-way mechanism comprises a roller clutch; and
said release mechanism comprising a sleeve that surrounds said shaft;
wherein said sleeve comprises a non-circular inner surface;
wherein said shaft second length portion comprises a non-circular portion shape arranged to engage said non-circular inner surface of said sleeve.
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Abstract
In some embodiments, a crossbow crank comprises a housing and a shaft rotatable with respect to the housing. A one-way mechanism is arranged to prevent rotation of the shaft in a first rotational direction, but allow rotation in a second direction. A release mechanism is arranged to disengage the one-way mechanism from the shaft. The release mechanism has a first position and a second position, wherein the release mechanism moves along a length of the shaft between the first position and the second position.
74 Citations
16 Claims
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1. A crossbow crank comprising:
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a housing; a shaft rotatable with respect to said housing, said shaft comprising a first length portion having a first cross-sectional shape and a second length portion having a second cross-sectional shape that is different from said first cross-sectional shape; a one-way mechanism arranged to prevent rotation of said shaft in a first rotational direction; and a release mechanism having a first position and a second position, said release mechanism moving along a length of said shaft between said first position and said second position, said release mechanism positioned over said second length portion and rotationally engaged with said shaft second length portion in said first position, said release mechanism positioned over said first length portion in said second position, said release mechanism not rotationally engaged with said shaft in said second position; and wherein said one-way mechanism comprises a roller clutch; and said release mechanism comprising a sleeve that surrounds said shaft; wherein said sleeve comprises a non-circular inner surface; wherein said shaft second length portion comprises a non-circular portion shape arranged to engage said non-circular inner surface of said sleeve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A crossbow crank comprising:
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a housing; a shaft rotatable with respect to said housing; a roller clutch mechanism arranged to allow rotation of said shaft in one rotational direction, said roller clutch mechanism surrounding said shaft; and a release mechanism arranged to disengage said roller clutch from said shaft, said release mechanism moveable along a length of said shaft between a first position and a second position; said shaft comprising a first length portion having a first cross-sectional shape and a second length portion having a second cross-sectional shape that is different from said first cross-sectional shape; said release mechanism comprising a sleeve that surrounds said shaft; wherein said sleeve comprises a non-circular inner surface; wherein said shaft second length portion comprises a non-circular portion shape arranged to engage said non-circular inner surface of said sleeve.
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Specification