Crossbow
AssigneeCrosman Corporation
InventorHans J. Walthert
Life of this patent
Estimating the term…
Abstract
Crossbows are provided having a barrel with one limb and one winding system mounted to each of two opposite sides of the barrel. Each winding system has a limb string connected to one of the limbs and a limb cam about which the limb string can be wound. The limb cams are connected to and positioned apart from arrow string cams by respective interconnects and an arrow string extends across the barrel from an arrow string cam on one side of the barrel to an arrow string cam on the other side of the barrel. The limbs provide first forces urging the limb strings to unwind from the limb cams and the interconnects receive the first forces and convey a second forces to the arrow cams urging the arrow cams to rotate so as to wind the arrow strings onto the arrow cams. The arrow string is drawn against such urging.
Claims17
A crossbow comprising:
- a barrel,
- a fire control system,
- and a bow system having,
- a riser positioning a first limb on a first side of a barrel and a second limb on a second side of the barrel;
- a first winding system joined to a first side of the barrel having a first limb string linked to a free end of the first limb and to a rotatable first limb string winder about which the first limb string can be wound, a rotatable first arrow string winder about which a first portion of an arrow string can be wound and a first interconnect separating the first limb string winder from the first arrow string winder, and transferring at least a portion of a first force urging rotation of the first limb string winder to urge rotation of the first arrow string winder;
- a second winding system joined to a second side of the barrel having a second limb string linked to a free end of the second limb and to a rotatable second limb string winder about which the second limb string can be wound, a rotatable second arrow string winder about which a second portion of an arrow string can be wound and a second interconnect separating the second limb string winder from the second arrow string winder and transferring a predetermined portion of a second force urging rotation of the second limb string winder to urge rotation of the second arrow string winder;
- wherein the bow system is configured so that the first limb urges the first limb string winder to rotate in a manner that unwinds the first limb string from the first limb string winder and the first interconnect applies a second force urging the first arrow string winder to rotate in a manner that winds the first portion of the limb string;
- and wherein the bow system is configured so that the first limb urges the first limb string winder to rotate in a manner that unwinds the first limb string from the first limb string winder and the first interconnect urges the first arrow string winder to rotate in a manner that winds the first portion of the limb string;
- wherein the first limb applies a force on the first limb string that urges the first limb string winder to rotate in a manner that unwinds the first limb string from the first limb string winder and the first interconnect urges the first arrow string winder to rotate in a manner that winds the first portion of the arrow string onto the first arrow string winder;
- and
- wherein the second limb applies a force on the second limb string that urges the second limb string winder to rotate in a manner that unwinds the first limb string from the first limb string winder and the first interconnect urges the first arrow string winder to rotate in a manner that winds the first portion of the arrow string onto the first arrow string winder.
Dependencies are inferred from the claim text.