Crossbow cocking assembly

• US 8,104,461 B2
• Filed: 01/23/2007
• Issued: 01/31/2012
• Est. Priority Date: 01/23/2007
• Status: Active Grant

• Current Assignee: James J. Kempf
• Original Assignee: James J. Kempf
• Inventors: Kempf, James J.
• Primary Examiner(s): RICCI, JOHN A
• Application Number:
  US11/656,845
• Publication Number:
  US 20100269807A1
• Time in Patent Office: 1,834 Days
• Field of Search: 124/25
• US Class Current: 124/25
• CPC Class Codes: F41B 5/12 Crossbows

Abstract

A crossbow with an improved cocking assembly. The improvement includes a means for automatically disengaging a hook associated with a cocking assembly from a bowstring once the bowstring has been drawn the desired distance behind a bowstring retainer. The automatic disengagement of the hook from the bowstring reduces movement and sound associated with disengagement, and reduces the likelihood of injury associated with placement of the fingers in front of the cocked bowstring. The disengagement mechanism may either be mechanical or magnetic as desired.

Claims

1. A crossbow comprising:

(a) a frame;

(b) a bow;

(c) a string provided on said bow;

(d) means for engaging said string;

(e) means coupled to said engaging means for drawing said string;

(f) means for retaining said string; and

(g) means for moving said engaging means out of engagement with said string after said string engages said retaining means.

2. The crossbow of claim 1, wherein said moving means is means for pivoting said engaging means out of engagement with said string after said string engages said retaining means.

3. The crossbow of claim 2, wherein said engaging means is a hook coupled to a cable.

4. The crossbow of claim 3, further comprising a crank coupled to said cable.

5. The crossbow of claim 1, wherein said moving means is means for magnetically moving said engaging means out of contact with said string in response to a reversal of said crank.

6. The crossbow of claim 1, wherein said retaining means is means for retaining said string at a first point and a second point.

7. The crossbow of claim 6, wherein said engaging means is means for engaging said string at a point between said first point and said second point.

8. The crossbow of claim 1, wherein said moving means is means for magnetically moving said engaging means out of contact with said string.

9. The crossbow of claim 8, wherein said moving means is positioned above said engaging means.

10. A crossbow comprising:

(a) a frame;

(b) a bow;

(c) a string provided on said bow;

(d) a hook coupled to said string;

(e) a cable pivotably coupled to said hook;

(f) means coupled to said cable for drawing said string;

(g) means for retaining said string; and

(h) means for pivoting said hook out of engagement with said string after said string engages said retaining means.

11. The crossbow of claim 10, further comprising a crank coupled to said cable.

12. The crossbow of claim 10, wherein said retaining means is means for retaining said string at a first point and a second point.

13. The crossbow of claim 12, wherein said hook is coupled to said string at a point between said first point and said second point.

14. The crossbow of claim 10, wherein said pivoting means is an arcuate block.

15. The crossbow of claim 14, wherein said hook is provided with a tail, wherein said cable is coupled between said hook and said tail.

16. A crossbow comprising:

(a) a frame;

(b) a bow;

(c) a string provided on said bow;

(d) means for engaging said string;

(e) means coupled to said engaging means for drawing said string;

(f) means for retaining said string; and

(g) means for magnetically moving said engaging means out of engagement with said string.

17. The crossbow of claim 16, wherein said moving means is a magnet positioned above said string.

18. The crossbow of claim 16, wherein said engaging means is a magnet and wherein said moving means is a ferrous material located above said string.

19. The crossbow of claim 16, wherein said engaging means is a hook and further comprising a cable coupled to said hook.

20. The crossbow of claim 19, further comprising a crank coupled to said cable.