Reversible and adjustable module system for archery bow

• US 7,721,721 B1
• Filed: 09/27/2007
• Issued: 05/25/2010
• Est. Priority Date: 09/28/2006
• Status: Active Grant

• Current Assignee: Precision Shooting Equipment Incorporated
• Original Assignee: Precision Shooting Equipment Incorporated
• Inventors: Kronengold, David H., Rasor, Allen C. Jr.
• Primary Examiner(s): Kim; Gene
• Assistant Examiner(s): Niconovich; Alexander R
• Application Number:
  US11/862,624
• Time in Patent Office: 971 Days
• Field of Search: 124/25, 124/25.6, 124 86- 92, 124/16, 124/23.1, 124/25.5, 124/25.7, 124/24.1
• US Class Current: 124/25.6
• CPC Class Codes: F41B 5/10 Compound bows compound crossbows F41B5/123
• CPC Class Codes: F41B 5/105 Cams or pulleys for compound bows

Abstract

An archery bow having a riser, a pair of flexible limbs extending from the riser, with each limb having a rotating member on an axel secured to the end thereof. At least one of the rotating members is a cam having a module secured thereto. The module is positionable with respect to the cam by translational movement and is also positionable on the cam with an opposite face against the cam to selectively provide a desired draw length.

Claims

1. An archery bow having a riser, a pair of flexible limbs extending from the riser, each of said limbs having a rotating member mounted on an axel secured to the respective limb, at least one of said rotating members comprising a cam, a bowstring extending between said rotating members, and a cable extending from said cam to an opposite limb;

a module having first and second parallel opposing flat surfaces separated to define a peripheral cable-engaging groove therebetween, said groove having a first peripheral segment and a second peripheral segment;

said cam having a bowstring engaging peripheral groove and having a flat surface for contacting one of the parallel opposing flat surfaces of the module; and

said archery bow having a draw length when said first parallel opposing flat surface of the module is in contact with the flat surface of the cam and a different draw length when the second parallel opposing flat surface of the module is in contact with the flat surface of the cam.

2. The archery bow of claim 1 including a plurality of screw fasteners securing the module to the cam in a selected translational position and with a selected opposing flat surface of the module in contact with the flat surface of the cam.

3. An archery bow having a riser, a pair of flexible limb extending from the riser, each of said limbs having a rotating member mounted on an axel secured to the respective limb, at least one of said rotating members comprising a cam, a bowstring extending between said rotating members, and a cable-extending from said cam to an opposite limb;

a module having first and second parallel opposing flat surfaces separated to define a peripheral cable-engaging groove therebetween, said groove having a first peripheral segment and a second peripheral segment;

said module including an elongated guide slot for engaging a cam guide member, said guide member and guide slot, when engaged, permitting only translational movement between the module and cam;

said cam having a bowstring engaging peripheral groove and having a flat surface for contacting one of the parallel opposing flat surfaces of the module, said cam including a guide member extending from the cam flat surface and extending into said guide slot; and

said archery bow having a draw length when said first parallel opposing flat surface of the module is in contact with the flat surface of the cam and a different draw length when the second parallel opposing flat surface of the module is in contact with the flat surface of the cam.

4. The archery bow of claim 3 including a plurality of screw fasteners securing the module to the cam in a selected translational position and with a selected opposing flat surface of the module in contact with the flat surface of the cam.

5. An archery bow having a riser, a pair of flexible limbs extending from the riser, each of said limbs having a rotating member mounted on an axel secured to the respective limb, at least one of said rotating members comprising a cam, a bowstring extending between said rotating members, and a cable extending from said cam to an opposite limb;

a module for mounting on said cam, said module including an elongated guide slot for engaging a cam guide member, said guide member and said guide slot, when engaged, permitting only translational movement between the module and cam; and

means for securing said module to the cam in a selected translational position.

6. In an archery bow system having a riser, a pair of flexible limbs extending from the riser, each of said limbs having a rotating member mounted on an axel secured to the respective limb, at least one of said rotating members comprising a cam, a bowstring extending between said rotating members, and a cable extending from said cam to an opposite limb, the improvement comprising;

a module attachable to said cam for adjusting draw weight comprising;

(a) first and second parallel opposing flat surfaces separated to define a peripheral cable-engaging groove therebetween;

(b) an elongated guide slot for engaging a cam guide member, said guide member and guide slot, when engaged permitting only translational movement between the module and cam;

means for securing said module to the cam in a selected translational position.

7. The archery bow of claim 6 including a plurality of screw fasteners securing the module to the cam in a selected translational position and with a selected opposing flat surface of the module in contact with the flat surface of the cam.

8. An archery bow having a riser, a pair of flexible limbs extending from the riser, each of said limbs having a cam mounted on an axel secured to the limb, a bowstring extending between said cams, and a cable extending from each of said cams respectively to an opposite limb;

a pair of modules each having a first and second parallel opposing flat surfaces separated to define a peripheral cable engaging groove therebetween, said groove having a first peripheral segment and a second peripheral segment;

each of said cams having a bowstring engaging peripheral groove and having flat surfaces for contacting one of the parallel opposing flat surfaces of one of said modules;

said archery bow having a draw length when said first parallel opposing flat surfaces of the respective modules is in contact with the flat surface of a respective cam and a different draw length when a second parallel opposing flat surface of the respective module is in contact with the flat surface of a cam respectively.

9. The archery bow of claim 8 including a plurality of screw fasteners securing the modules to the respective cams in selected translational positions and with a selected opposing flat surface of the respective module in contact with the flat surface of a cam.