Crossbow vibration damping device
First Claim
1. A crossbow having a vibration damping mechanism comprising,a stock member including a barrel at a forward portion thereof, said barrel supporting an arrow for firing of said crossbow,a riser block assembly mounted at a forward end of said barrel, said riser block assembly supporting first and second bow limbs extending outward, said first and second bow limbs carrying a bowstring between the outward tips thereof, and extending transversely to said barrel,said stock member further having a trigger mechanism associated therewith to selectively hold and release said bowstring from a cocked position in which said bowstring is drawn in a direction away from said first and second bow limbs to tension said bow limbs, andvibration damping means disposed between said riser block assembly and said barrel such that vibrations transmitted to said riser block assembly from said first and second bow limbs upon activation of said trigger mechanism to release said bowstring are damped to minimize vibrations transmitted to said barrel.
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Accused Products
Abstract
The invention relates to a crossbow having a vibration damping mechanism which generally comprises a stock member including a barrel at a forward portion thereof, with the barrel used to support an arrow for firing of the crossbow. A riser block assembly is mounted at a forward end of the barrel, with the riser block assembly supporting first and second bow limbs which extend outward from the riser block assembly. The first and second bow limbs carry a bowstring between the outward tips thereof, and the bowstring extends transversely to the barrel. The crossbow further includes a trigger mechanism with the trigger mechanism used to selectively hold and release the bowstring from a cocked position. In the cocked position, the bowstring is drawn in a direction away from the first and second bow limbs to tension the bow limbs. The vibration damping mechanism is disposed to interface at a location between the bow limbs and the stock, such as between the riser block assembly and the barrel or bow limb supports. In this way, vibrations transmitted from the bow limbs upon activation of the trigger mechanism to release the bowstring are damped to minimize vibrations transmitted through the barrel or stock. The vibration damping mechanism of the invention also results in significant noise reduction upon firing of the crossbow.
86 Citations
19 Claims
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1. A crossbow having a vibration damping mechanism comprising,
a stock member including a barrel at a forward portion thereof, said barrel supporting an arrow for firing of said crossbow, a riser block assembly mounted at a forward end of said barrel, said riser block assembly supporting first and second bow limbs extending outward, said first and second bow limbs carrying a bowstring between the outward tips thereof, and extending transversely to said barrel, said stock member further having a trigger mechanism associated therewith to selectively hold and release said bowstring from a cocked position in which said bowstring is drawn in a direction away from said first and second bow limbs to tension said bow limbs, and vibration damping means disposed between said riser block assembly and said barrel such that vibrations transmitted to said riser block assembly from said first and second bow limbs upon activation of said trigger mechanism to release said bowstring are damped to minimize vibrations transmitted to said barrel.
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8. A crossbow having a vibration damping mechanism, comprising,
a stock member including a barrel at a forward portion thereof, said barrel supporting an arrow for firing of said crossbow, a riser block assembly mounted at a forward end of said barrel, said riser block assembly including first and second limb sockets for supporting first and second bow limbs extending outward from said riser block assembly, said first and second bow limbs carrying a bowstring between the outward tips thereof, vibration damping means disposed between said first and second limb sockets and said riser block assembly, such that vibrations transmitted to said first and second limb sockets from said first and second bow limbs upon firing of the crossbow are damped to minimize vibrations transmitted through said riser block assembly.
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14. A vibration damping mechanism for a crossbow having a pair of bow limbs carrying a bowstring therebetween, a limb mounting member for supporting the bow limbs, and a stock portion held by the user for firing of the crossbow, the vibration damping mechanism comprising,
at least one bushing member mounted in association with said limb mounting member in at least one location between said bow limbs and said stock portion to damp vibrations generated by said bow limbs upon firing of said crossbow, said at least one bushing member being made of a compressible material and forming an interface at said at least one location between said bow limbs and said stock portion.
Specification