Narrow crossbow with large power stroke

• US 8,191,541 B2
• Filed: 08/25/2010
• Issued: 06/05/2012
• Est. Priority Date: 12/01/2006
• Status: Active Grant

• Current Assignee: Hunter's Manufacturing Company Incorporated
• Original Assignee: Hunter's Manufacturing Company Incorporated
• Inventors: Shaffer, Michael J., Bednar, Richard L.
• Primary Examiner(s): RICCI, JOHN A
• Application Number:
  US12/868,012
• Publication Number:
  US 20110203561A1
• Time in Patent Office: 650 Days
• Field of Search: 124/25
• US Class Current: 124/25
• CPC Class Codes: F41B 5/105 Cams or pulleys for compound bows
• CPC Class Codes: F41B 5/12 Crossbows
• CPC Class Codes: F41B 5/123 Compound crossbows
• CPC Class Codes: F41B 5/1469 Bow-string drawing or releasing devices F41B5/1473 takes precedence
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

A crossbow may include a main beam; a compound bow assembly mounted to the main beam; and, a trigger mechanism mounted to the main beam for use in holding a bowstring in a cocked position. The crossbow may include wheels at opposite ends of the bow that operatively receive the bowstring. The wheels may be separated by a wheel distance (WD) when the crossbow is in an un-cocked position. The crossbow may also have a power stroke distance (PD) and the ratio WD/PD may be less than 2.0.

Claims

1. A crossbow comprising:

a main beam;

a bow assembly mounted to the main beam and comprising;

(a) a pair of bow limbs defining opposite ends of said bow assembly, each bow limb having a length;

(b) a bowstring movable between a cocked position and an uncocked position, the linear distance between the cocked position and the uncocked position along the axis of elongation of the main beam being the powerstroke distance (PD), said bowstring adapted to propel an arrow and operatively connected to the bow assembly;

(c) first and second wheels at opposite ends of the bow assembly and adapted to operatively receive the bowstring, the first wheel pivotable about a first pivot axis, the second wheel pivotable about a second pivot axis, the first pivot axis and the second pivot axis being separated by a wheel distance (WD) when the crossbow is in an un-cocked position, said WD being 24 inches or less;

a trigger mechanism mounted to the main beam for use in holding the bowstring in a cocked position;

wherein the ratio of WD to PD (WD/PD) is less than 1.8 and wherein said bow assembly has a draw weight in excess of 87 pounds.

2. The crossbow of claim 1, wherein WD is less than 23 inches.

3. The crossbow of claim 1, wherein WD is less than 22 inches.

4. The crossbow of claim 1, wherein WD is less than 21 inches.

5. The crossbow of claim 1, wherein WD is less than 20 inches.

6. The crossbow of claim 1, wherein WD is less than 19 inches.

7. The crossbow of claim 1, wherein WD is less than 18 inches.

8. The crossbow of claim 1, wherein WD is less than 17 inches.

9. The crossbow of claim 1, wherein WD is less than approximately 16 inches.

10. The crossbow of claim 1, wherein the ratio WD/PD is less than 1.6.