UNIT FOR FASTENING OF THE BOWSTRING THROWING DEVICES (VARIANTS)

• US 20100132684A1
• Filed: 08/30/2007
• Published: 06/03/2010
• Est. Priority Date: 09/07/2006
• Status: Active Grant

• Current Assignee: Sergey Olegovich Popov
• Original Assignee: Pavel Vitalievich Ivanov, Sergey Anatolievich Golovatyy, Sergey Olegovich Popov
• Inventors: Ivanov, Pavel Vitalievich, Popov, Sergey Olegovich, Golovatyy, Sergey Anatolievich
• Granted Patent: US 8,297,267 B2
• Time in Patent Office: Days
• US Class Current: 124/86
• CPC Class Codes: F41B 5/105 Cams or pulleys for compound bows
• CPC Class Codes: F41B 5/123 Compound crossbows
• CPC Class Codes: F41B 5/14 Details of bows; Accessories for arc shooting sighting devices for bows F41G1/467

Abstract

A unit for fastening a bowstring of a throwing device the containing a first pulley mounted with a possibility of rotation about the axis of rotation of the first pulley and having the first and the second peripheral surfaces, the second pulley mounted with a possibility of rotation about the axis of rotation of the second pulley, spaced apart from the axis of rotation of the first pulley and having the first and the second peripheral surfaces, a bowstring for throwing a projectile having one end fixed to the first pulley, and other end fixed to the second pulley so the bowstring for throwing a projectile is, at least, partly wrapping the first peripheral surfaces of the first and the second pulleys, the first tension bowstring having one end fixed to the axis of rotation of the first pulley, and other end fixed to the second pulley so the first tension bowstring is, at least, partly wrapping the second peripheral surface of the second pulley, the second tension bowstring having one end fixed to the axis of rotation of the second pulley, and the other end fixed to the first pulley, so the second tension bowstring is, at least, partly wrapping the second peripheral surface of the first pulley and intersects the first tension bowstring, thus when rendering the throwing device in the cocked position the bowstring for throwing a projectile intersects the first and the second tension bowstrings.

Claims

1. A unit for fastening a bowstring of throwing device, containing:

a first pulley mounted with a possibility of rotation on the axis of rotation of the first pulley having the first and the second peripheral surfaces,

a second pulley mounted with a possibility of rotation on an axis of rotation of the second pulley, spaced apart from the axis of rotation of the first pulley, having the first and the second peripheral surfaces,

wherein the bowstring for throwing a projectile has one end fixed to the first pulley, and the other end fixed to the second pulley so the bowstring for throwing of a projectile is, at least, partly wrapping the first peripheral surfaces of the first and the second pulleys,

a first tension bowstring,

a second tension bowstring,

a first element for fastening the bowstring, mounted on the axis of rotation of the first pulley, and

a second element for fastening the bowstring, mounted on the axis of rotation of the second pulley,

where the first tension bowstring has one end fixed to the first element for fastening a bowstring, and the other end fixed to the second pulley so the first tension bowstring is, at least, in partly wrapping the second peripheral surface of the second pulley,

the second tension bowstring has one end fixed to the second element for fastening a bowstring, and the other end fixed to the first pulley so the second tension bowstring is, at least, partly wrapping the second peripheral surface of the first pulley and intersects the first tension bowstring, and

when rendering the throwing device to the cocked position the bowstring for throwing a projectile intersects the first and the second tension bowstrings.

2. A unit of claim 1 wherein the pulleys have a round shape.

3. A unit of claim 1 wherein the pulleys have an elliptic shape.

4. A unit of claim 1 wherein the axis of rotation of each pulley passes through the center of this pulley.

5. A unit of claim 1 wherein the axis of rotation of each pulley is displaced about the center of this pulley.

6. A unit of claim 1 wherein it is manufactured with a possibility of its mounting on a crossbow.

7. A unit of claim 1 wherein it is manufactured with a possibility of its mounting on a bow.

8. A unit for fastening a bowstring of the throwing device, containing:

a first pulley mounted with a possibility of rotation about the axis of rotation of the first pulley and having the first, the second and the third peripheral surfaces,

a second pulley mounted with a possibility of rotation about the axis of rotation of the second pulley, spaced apart from the axis of rotation of the first pulley, and having the first, the second and a third the peripheral surfaces, wherein

the bowstring for throwing a projectile has one end fixed to the the first pulley, and the other end fixed to the second pulley so the bowstring for throwing a projectile is, at least, partly wrapping the first peripheral surfaces of the first and the second pulleys,

the first tension bowstring having one end fixed to the first pulley, and the other end fixed to the second pulley so the first tension bowstring is, at least, partly wrapping the second peripheral surfaces of the first and the second pulleys,

the second tension bowstring having one end fixed by to the second pulley, and the other end fixed to the first pulley so the second tension bowstring is, at least, partly wrapping the third peripheral surfaces of the first and the second pulleys, thus when rendering the throwing device to the cocked position the bowstring for throwing a projectile intersects the first and the second tension bowstrings.

9. A unit of claim 8 wherein the pulleys have a round shape.

10. A unit of claim 8 wherein the pulleys have an elliptic shape.

11. A unit of claim 8 wherein the axis of rotation of each pulley passes through the center of this pulley.

12. A unit of claim 8 wherein the axis of rotation of each pulley is displaced about the center of this pulley.

13. A unit of claim 8 wherein it is manufactured with a possibility of its mounting on a crossbow.

14. A unit of claim 8 wherein it is manufactured with a possibility of its mounting on a bow.

15. A unit for fastening a bowstring of the throwing device, containing:

a first pulley mounted with a possibility of rotation about the axis of rotation of the first pulley and having the first, the second and the third peripheral surfaces,

a second pulley mounted with a possibility of rotation about the axis of rotation of the second pulley, spaced apart from the axis of rotation of the first pulley, and having the first, the second and a third the peripheral surfaces, wherein

the bowstring for throwing a projectile has one end fixed to the first pulley, and the other end fixed to the second pulley so the bowstring for throwing a projectile is, at least, partly wrapping the first peripheral surfaces of the first and the second pulleys,

the first tension bowstring having one end fixed to the first pulley, and the other end fixed to the second pulley so the first tension bowstring is, at least, partly wrapping the second peripheral surface of the first pulley and the third peripheral surface of the second pulley,

the second tension bowstring having one end fixed to the second pulley, and the other end fixed to the first pulley so the second tension bowstring is, at least, partly wrapping the third peripheral surface of the first pulley and the second peripheral surface of the second pulley and intersects the first tension bowstring,

thus when rendering the throwing device to the cocked position the bowstring for throwing a projectile intersects the first and the second tension bowstrings.

16. A unit of claim 15 wherein the pulleys have a round shape.

17. A unit of claim 15 wherein the pulleys have an elliptic shape.

18. A unit of claim 15 wherein the axis of rotation of each pulley passes through the center of this pulley.

19. A unit of claim 15 wherein the axis of rotation of each pulley is displaced about the center of this pulley.

20. A unit of claim 15 wherein it is manufactured with a possibility of its mounting on a crossbow.

21. A unit of claim 15 wherein it is manufactured with a possibility of its mounting on a bow.