VIBRATIONS ABSORBING STIRRUP FOR CROSSBOW AND METHOD OF MANUFACTURING THEREOF

• US 20150128924A1
• Filed: 11/06/2014
• Published: 05/14/2015
• Est. Priority Date: 11/14/2013
• Status: Active Grant

• Current Assignee: Placements Gaston Houle Inc.
• Original Assignee: Placements Gaston Houle Inc.
• Inventors: HOULE, Gaston
• Granted Patent: US 9,714,807 B2
• Time in Patent Office: Days
• US Class Current: 124/25
• CPC Class Codes: F41B 5/12 Crossbows
• CPC Class Codes: F41B 5/1469 Bow-string drawing or releasing devices F41B5/1473 takes precedence

Abstract

A vibration dampening crossbow comprising a body including a longitudinal axis is described, at least one limb affixed on a distal end of the body, the at least one limb being adapted to move between a distal relaxed position and a proximal tensed position for accumulating energy, a string mounted on respective transversal sides of the at least one limb in a substantially orthogonal direction in respect with the body for tensing the at least one limb when proximally longitudinally pulled away from the distal end and blocking the at least one limb in the tensed position for longitudinally propelling an arrow along the longitudinal axis in a distal direction when selectively released, and a stirrup disposed on the distal end of the body, the stirrup including a foot-receiving portion for securing the distal end of the body to the ground with a foot applying pressure on the stirrup toward the ground when cocking the string of the crossbow, wherein the foot-receiving portion of the stirrup is configured to damp vibrations.

Claims

1. A vibration dampening crossbow comprising:

a body including a longitudinal axis;

a pair of limbs affixed on a distal end of the body, the pair of limbs being adapted to move between a distal relaxed position and a proximal tensed position for accumulating energy thereof;

a string mounted on respective transversal sides of the pair of limbs in a substantially orthogonal direction in respect with the body for tensing the pair of limbs when proximally longitudinally pulled away from the distal end and blocking the pair of limbs in the tensed position for longitudinally propelling an arrow along an arrow trajectory in a longitudinal and distal direction when the string is selectively released to bring back the pair of limbs the distal relaxed position; and

a stirrup disposed on the distal end of the body, the stirrup including a foot-receiving portion for securing the distal end of the body to the ground with a foot applying pressure on the stirrup toward the ground when cocking the string of the crossbow,

wherein the foot-receiving portion of the stirrup is configured to damp vibrations.

2. The vibration dampening crossbow of claim 1, wherein the foot-receiving portion is in cantilever, protruding from the body.

3. The vibration dampening crossbow of claim 1, wherein the two foot-receiving portions are laterally separated with a member therebetween for securing the stirrup to the distal end of the body.

4. The vibration dampening crossbow of claim 2, wherein the foot-receiving portion is treated as a simple lumped-mass system to for damping vibrations when the crossbow releases a tension in a string to propel the arrow.

5. The vibration dampening crossbow of claim 1, wherein the stirrup is located further away down from a longitudinal trigger axis that is axially projected from a trigger latch of the crossbow.

6. The vibration dampening crossbow of claim 1, wherein the stirrup includes a polymer.

7. The vibration dampening crossbow of claim 1, wherein the stirrup includes a vibration absorber receiver.

8. The vibration dampening crossbow of claim 7, wherein a vibration absorber can be added to the stirrup to further absorb vibrations.

9. The vibration dampening crossbow of claim 7, wherein the vibration absorber includes rubber.

10. The vibration dampening crossbow of claim 9, wherein vibration absorber has a mass-ended cantilever portion.

11. A vibration dampening stirrup for a crossbow, the crossbow comprising:

a body including a longitudinal axis; and

a pair of limbs affixed on a distal end of the body, the pair of limbs being adapted to move between a distal relaxed position and a proximal tensed position for accumulating energy thereof;

a string mounted on respective transversal sides of the pair of limbs in a substantially orthogonal direction in respect with the body for tensing the pair of limbs when proximally longitudinally pulled away from the distal end and blocking the pair of limbs in the tensed position for longitudinally propelling an arrow along an arrow trajectory in a longitudinal and distal direction when the string is selectively released to bring back the pair of limbs the distal relaxed position,

the vibration dampening stirrup being disposed on the distal end of the body, the stirrup comprising a foot-receiving portion for securing the distal end of the body to the ground with a foot applying pressure on the stirrup toward the ground when cocking the string of the crossbow,

wherein the foot-receiving portion of the stirrup is configured to damp vibrations.

12. The vibration dampening stirrup of claim 11, wherein the foot-receiving portion is in cantilever, protruding from the body.

13. The vibration dampening stirrup of claim 11, wherein the two foot-receiving portions are laterally separated with a member therebetween for securing the stirrup to the distal end of the body.

14. The vibration dampening stirrup of claim 12, wherein the foot-receiving portion is treated as a simple lumped-mass system to for damping vibrations when the crossbow releases a tension in a string to propel the arrow.

15. The vibration dampening stirrup of claim 11, wherein the stirrup is located further away down from a longitudinal trigger axis that is axially projected from a trigger latch of the crossbow.

16. The vibration dampening stirrup of claim 11, wherein the stirrup includes a polymer.

17. The vibration dampening stirrup of claim 11, wherein the stirrup includes a vibration absorber receiver.

18. The vibration dampening stirrup of claim 17, wherein a vibration absorber can be added to the stirrup to further absorb vibrations.

19. The vibration dampening stirrup of claim 17, wherein the vibration absorber includes rubber.

20. The vibration dampening stirrup of claim 19, wherein vibration absorber has a mass-ended cantilever portion.