Crossbow cocking crank

• US 10,502,518 B2
• Filed: 05/12/2016
• Issued: 12/10/2019
• Est. Priority Date: 08/09/2013
• Status: Active Grant

• Current Assignee: MCP IP, LLC
• Original Assignee: MCP IP, LLC
• Inventors: McPherson, Mathew A., Hayes, Mark, Ozanne, Jeffrey A., Koshollek, Tom
• Primary Examiner(s): Vanderveen, Jeffrey S
• Application Number:
  US15/153,549
• Publication Number:
  US 20160258709A1
• Time in Patent Office: 1,307 Days
• CPC Class Codes: F41B 5/123 Compound crossbows
• CPC Class Codes: F41B 5/1469 Bow-string drawing or releasing devices F41B5/1473 takes precedence

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.

Claims

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.