Bow stabilizer with game finder

F - Mech Eng,Light,Heat,Weapons – 41 – B

Patent

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F41B 5/20 (2006.01)

Patent

CA 2243891

A combination archery bow stabilizer and string tracker having a built-in shock- and vibration-damping system comprising a body portion containing a chamber for holding a spool of tracking string and a chamber housing a temperature-insensitive vibration-damping and shock-absorbing viscoelastic polymer element in which a bow-mounting rod is embedded. The viscoelastic polymer element material is preferably a flexible polyurethane of essentially linear structure, containing unsatisfied hydroxyl groups, and having a compression set of less than 15%, an elongation at break of at least 500%, and a recovery after compression which is delayed by at least 0.7 seconds. The system minimizes the vibration due to shock created by the release of the arrow and by the pay out of the tracking string.

Divulgation d'un système comprenant un stabilisateur pour arc et un dispositif de traction de la corde, dans lequel est incorporé un dispositif d'amortissement des chocs et des vibrations. Ce dispositif comprend un corps contenant une cavité destinée à contenir une bobine de corde de traction et une cavité renfermant un élément en polymère viscoélastique, insensible à la température, amortissant les vibrations et absorbant les chocs, dans lequel est noyée une tige pour monter l'arc. La matière de l'élément polymère viscoélastique est de préférence un polyuréthane souple de structure pratiquement linéaire, contenant des groupements hydroxyles non satisfaits et ayant une rémanence par la compression de moins de 15 %, un allongement de rupture d'au moins 500 %, et une récupération après compression retardée d'au moins 0,7 seconde. Ce système réduit au minimum les vibrations dues au choc produit par le lancement de la flèche et par le relâchement de la corde de traction.

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