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US 5,203,314 AGranted
Archer's aid for drawing bowstring
OwnerWilliam H. Greeninventor
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OwnerWilliam H. Greeninventor
Estimating the term…
To alleviate the problem that a considerable amount of force is required by an archer to bend the bow by pulling or drawing the bowstring, this invention introduces an auxiliary force aid to supplement the manual force of the archer's arm for drawing the bowstring. Thus, an elastic member anchored to the archer's body is stretched to store a force when the archer's arm reaches for the bowstring to draw it, and the stored force from the stretched elastic member supplements the manual force provided by the archer's arm in a vectorial direction for drawing the bowstring thereby to make the drawstring easier to draw. The elastic member, typically a bungee cord, is affixed to a body harness held on the upper torso by a shoulder strap for movement and stretching along the line of travel of the archer's hand when reaching for the bowstring to draw it. Thus, the peak drawing force exerted by the archer is reduced by distributing it over the reciprocal reaching and drawing motions of the archer's arm.
Apparatus for assisting an archer to draw a bowstring, comprising in combination, a harness constructed with means for supporting it upon the upper torso of an archer, an elastic cord affixed to the harness with one end disposed for grasping and stretching by a hand of the archer when attempting to draw the bowstring, the cord being adapted for elastically extending away from the harness to a position alongside a drawing arm in response to manual force of the archer's arm reaching for a bowstring, thereby to store energy in the cord in a vectorial direction for exerting a drawing force on the bowstring, thereby to aid the archer by supplementing the manual energy of the arm for breaking the bow and drawing the bowstring, an archer's glove, and mating fittings on the glove and elastic cord for attaching the cord to the glove.
Apparatus for assisting an archer to draw a bowstring, comprising in combination, a harness constructed with means for supporting it upon the upper torso of an archer, an elastic cord affixed to the harness with one end disposed for grasping and stretching by a hand of the archer when attempting to draw the bowstring, the cord being adapted for elastically extending away from the harness to a position alongside a drawing arm in response to manual force of the archer's arm reaching for a bowstring, thereby to store energy in the cord in a vectorial direction for exerting a drawing force on the bowstring, thereby to aid the archer by supplementing the manual energy of the arm for breaking the bow and drawing the bowstring, and a mechanical bow release affixed to the elastic cord for coupling to the bowstring.
Apparatus for assisting an archer to draw a bowstring, comprising in combination, a harness constructed with means for supporting it upon the upper torso of an archer, an elastic cord affixed to the harness with one end disposed for grasping and stretching by a hand of the archer when attempting to draw the bowstring, the cord being adapted for elastically extending away from the harness to a position alongside a drawing arm in response to manual force of the archer's arm reaching for a bowstring, thereby to store energy in the cord in a vectorial direction for exerting a drawing force on the bowstring, thereby to aid the archer by supplementing the manual energy of the arm for breaking the bow and drawing the bowstring, wherein the harness further comprises a torso strap of hollow fabric, a shoulder strap affixed to the torso strap for extending over one shoulder for positioning the torso strap near armpits of the archer, and the elastic cord further comprises a fabric material resident inside and stitched to the torso strap and emerging therefrom near the armpit at a side of the archer opposite the shoulder strap.
The method of drawing a bowstring comprising the steps of stretching an elastic member anchored to an archer's body with an archer's arm reaching for the bowstring to draw it thereby to store a force on a forward stroke of the arm for supplementing manual force supplied by the archer's arm during a return stroke to draw the bowstring, and drawing the bowstring with the dual force of the stretched elastic member and the manual force in the arm coupled to the bowstring.
The method of reducing the peak manual force exerted by an archer to draw a bowstring, comprising the steps of:
Dependencies are inferred from the claim text.