Crossbow cocking crank

Patent metadata

Field	Value
Publication number	US-10502518-B2
Application number	US-201615153549-A
Country	US
Kind code	B2
Filing date	May 12, 2016
Priority date	Aug 9, 2013
Publication date	Dec 10, 2019
Grant date	Dec 10, 2019

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.

First claim

The invention claimed is:

1. A crossbow crank comprising:
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; and
a release mechanism arranged to disengage said roller clutch from said shaft, the release mechanism comprising a sleeve surrounding the shaft, the roller clutch surrounding the sleeve.

2. The crossbow crank of claim 1 , wherein the crossbow crank does not include a pawl.

3. The crossbow crank of claim 1 , wherein the roller clutch surrounds the shaft and the housing surrounds the roller clutch.

4. A crossbow crank comprising:
a housing;
a shaft rotatable with respect to said housing;
a one-way mechanism arranged to prevent rotation of said shaft in a first rotational direction, the one-way mechanism surrounding the shaft, the one-way mechanism engaged with the housing; and
a release mechanism arranged to disengage the one-way mechanism from the shaft, the release mechanism comprising a sleeve surrounding the shaft, the one-way mechanism surrounding the sleeve.

5. The crossbow crank of claim 4 , wherein the crossbow crank does not include a pawl.

6. The crossbow crank of claim 4 , wherein the one-way mechanism comprises a roller clutch.

7. The crossbow crank of claim 4 , comprising a crank arm engaged to the shaft.

8. The crossbow crank of claim 7 , comprising a moveable pin arranged to release said crank arm from said shaft.

9. The crossbow crank of claim 4 , wherein the release mechanism pivots with respect to said housing.

10. The crossbow crank of claim 4 , comprising a biasing member arranged to bias said release mechanism to an engaged position.

11. The crossbow crank of claim 4 , wherein said shaft comprises a first spool and a second spool oriented on opposite sides of the shaft.

12. The crossbow crank of claim 4 , said release mechanism comprising a sleeve that surrounds said shaft.

13. The crossbow crank of claim 12 , wherein said sleeve comprises a non-circular inner surface.

14. The crossbow crank of claim 4 , the sleeve arranged to move along a length of the shaft.

15. A crossbow crank comprising:
a housing;
a shaft rotatable with respect to said housing;
a one-way mechanism arranged to prevent rotation of said shaft in a first rotational direction, the one-way mechanism surrounding the shaft, the one-way mechanism engaged with the housing;
a release mechanism arranged to disengage the one-way mechanism from the shaft; and
a retraction spring arranged to bias said shaft in a second rotational direction, the retraction spring comprising a strip of material wrapped around the shaft.

Assignees

• Mcp Ip Llc

Inventors

• Mcpherson Mathew A
• Hayes Mark
• Ozanne Jeffrey A
• Koshollek Tom

Classifications

• F41B5/1469 Primary

  Bow-string drawing or releasing devices (F41B5/1473 takes precedence) · CPC title

• F41B5/123

  Compound crossbows · CPC title