US3916868A

US3916868A - Bowstring releasing device

Info

Publication number: US3916868A
Application number: US443456A
Authority: US
Inventors: William P Wolfe
Original assignee: Lee Raymond Organization Inc
Current assignee: Lee Raymond Organization Inc
Priority date: 1974-02-19
Filing date: 1974-02-19
Publication date: 1975-11-04
Anticipated expiration: 1992-11-04

Abstract

An archery device used to engage, draw and release the bowstring of an archery bow. The device incorporates a hand-held bracket fitted with a flexible cord, one end of which may be wrapped about a bowstring and fastened to a rotary release wheel. A spring biased trigger lever on the device prevents the release wheel from rotating and freeing the flexible cord, until the trigger lever is manually shifted.

Description

United States Patent Wolfe Nov. 4, 1975 [5 BOWSTRING RELEASING DEVICE 3,672,346 6/1972 Plumb 124/35 A 3,788,299 1/1974 Mathews I 124/35 A [75] Invenmr' y Wolfe Parkersburgh, 3,800,774 4/1974 Troncoso 124/35 A [73] Assignee: The Raymond Lee Organization, Primary Examiner-Richard J. Apley New York, a P Interest Assistant ExaminerWilliam R. Browne [22] Filed: Feb. 19 1974 Attorney, Agent, or Firml-loward I. Podell 21 A l. N 443456 PP 57 ABSTRACT [52] us Cl 124/35 A An archery device used to engage, draw and release [51] Int. 19/00 the bowstring of an archery The device incorpo' [58] Field of Search R 24 R 41 rates a hand-held bracket fitted with a flexible cord, 124/35 A 5 one end of which may be wrapped about a bowstring and fastened to a rotary release wheel. A spring biased [56] References Cited trigger lever on the device prevents the release wheel from rotating and freeing the flexible cord, until the UNITED STATES PATENTS trigger lever is manually shifted. 2,982,279 5/1961 Pursley 124/35 A 3,604,407 9/1971 Wilson 124/35 A 4 Claims, 4 Drawing Figures US. Patent Nov. 4, 1975 v 3,916,868

1 BOWSTRING RELEASING. DEVICE SUMMARY OF THE INVENTION This invention relates a hancl-held archery trigger device that provides the archer with a mechanical means of drawing and releasing the. bowstring of a bow with minimal effort. r

The device consists of a bracket, contoured to fit within the hand and fastened to a flexible cord, a thumb actuated trigger which locks a rotary release wheel in place, and a rotary release wheel which fastens to the free end of the flexible cord which may be wrapped about the bowstring of an archery bow.

An advantage of my invention is that the device permits the user to adjust the bowstring tension as desired and eliminates the need on the part of the archer for gloves or other protective accessories.

BRIEF DESCRIPTION OF THE DRAWINGS The objects and features of the invention may be understood with reference to the following detailed description of an illustrative embodiment of the invention, taken together with the accompanying drawings in which:

FIG. 1 is a plan view of the invention;

FIG. 2 is a top view showing the invention in the cocked position;

FIG. 3 is a partial top view of the invention in the cocked position; and

FIG. 4 is a partial top view enlargement of the invention showing the rotary release mechanism after it has been triggered.

DESCRIPTION OF THE PREFERRED EMBODIMENT Turning now descriptively to the drawings, in which similar reference characters denote similar elements throughout the several views, FIG. 1 illustrates the bowstring trigger device which is in the form of a hand-held bracket 26 fitted with finger holes 21 for ease of grasping. One end of a flexible cord 23 is fastened permanently to the bracket 26, with the free end of flexible cord formed in the shape of a closed loop 24 of a size to fit into or slip out of a slot 27 in rotary release wheel 37.

As shown in FIGS. 1-4 release wheel 37 is rotatably fastened to bracket 26 by pin 31 and fitted with a radial open slot 27. A projecting spoke 18 is mounted on the periphery of wheel 37. A section of the outer circumferential section of wheel 37 is relieved to form a recess 32 which may be engaged by the free end 39 of rotatable trigger lever 16. When so engaged, release wheel 37 cannot rotate in the release direction shown by clockwise arrow 44 in FIG. 4.

Trigger lever 16 is rotatably fastened to bracket 26 by a screw 12 and pivotably fastened at the distant end 22 of the lever 16 to a trigger bar 11. A tension spring 42, fastened at one end to bracket 26 is fastened to the distant end 22 of lever 16 to maintain the trigger lever 16 in the latched position, except when trigger bar 11 is manually pressed by the thumb or finger of the user.

In the cocked position, as shown in FIGS. 2-3, the cord 23 is passed around the bowstring 45 of a bow and the looped end 24 or the cord 23 fitted into the slot 27 of the rotary release wheel 37. The wheel 37 is rotated to the cocked position shown in FIGS. 2-3 by manually grasping the spoke 18. A spring rope guard 49 fits over the open end of slot 27 in the closed position toprevent accidental disengagement of ,thecord loop 24 from slot .27 of the rotary release wheel27. Loop 24 is of sufficient size to ,permitpassing over spoke 18 when the release wheel 27 is rotated to the cocked position.

Release of the wheel 27 is effected by applying suffi cient manual force to the trigger bar 11 to overcome the extension spring 42 preload and to rotate trigger lever 16 so as to disengage the end 39 of trigger line 16 from the recess 32 of the rotary release wheel 27.

As shown in FIG. 4, release wheel 27 then rotates under the torque of cord 23 about bowstring 45 to release the cord 23 and bowstring 45 from the cord 23.

Since obvious changes may be made in the specific embodiment of the invention described herein, such modifications being within the spirit and scope of the invention claimed, it is indicated that all matter contained herein is intended as illustrative and not as limiting in scope.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. An archery device for engaging and drawing a bow string of an archery bow and for effectuating a triggered release of a drawn bow string comprising,

a bracket of semi-rigid material contoured so as to be grasped by a hand of a user, said bracket incorporating,

a flexible cord, one end of which is fastened to the bracket, with the cord terminating in a loop at its free end,

a release wheel rotatably mounted on said bracket, said release wheel fitted with a first means on the periphery thereof to latch the loop of the flexible cord in a first position on the release wheel, said means freeing the loop of the flexible cord in a second position of the release wheel when the flexible cord is under tension caused by wrapping the flexible cord about a drawn and taut bow string and said means is free to rotate, and trigger mechanism which comprises a lever rotatably mounted to the bracket, which lever engages, in the latched position of the trigger mechanism, a second means on the periphery of the release wheel in the said first position of the release wheel so as to prevent rotation of the release wheel, said rotatable lever also rotatably engaged to a trigger bar which is slidably mounted on said bracket, with spring bias means fastened to the assembly of the lever and the trigger bar to maintain the lever in engagement with the release wheel, such that manual actuated sliding motion of the trigger bar serves to rotate the lever free of engagement with the release wheel, permitting the release wheel to freely rotate from the said second position under the torque of the tension of the flexible cord that is latched to the release wheel, and so'that the flexible cord and a taut bow string is freed of engagement with the release wheel.

2. The combination as recited in claim 1 in which the free end of the trigger bar is mounted so as to be accessible to the thumb of a hand grasping the bracket, with sliding movement of the trigger bar away from the said free end, when pressed, serving to rotate the engaged lever to free the lever from the release wheel.

3. The combination as recited in claim 1 in which the second means consists of a notch extending from the periphery of the release'wh e'elfsaid notchbeing or a and projects radially from said tieribhery, said lever size to engage the loop of the flexible cord. serving as a handle to enable manual rotation of the re- 4. The combination as recited in claim} in which a lease wheel from the unlatched to the latched position. lever is fastened to the periphery of the release wheel I I so

Claims

1. An archery device for engaging and drawing a bow string of an archery bow and for effectuating a triggered release of a drawn bow string comprising, a bracket of semi-rigid material contoured so as to be grasped by a hand of a user, said bracket incorporating, a flexible cord, one end of which is fastened to the bracket, with the cord terminating in a loop at its free end, a release wheel rotatably mounted on said bracket, said release wheel fitted with a first means on the periphery thereof to latch the loop of the flexible cord in a first position on the release wheel, said means freeing the loop of the flexible cord in a second position of the release wheel when the flexible cord is under tension caused by wrapping the flexible cord about a drawn and taut bow string and said means is free to rotate, and a trigger mechanism which comprises a lever rotatably mounted to the bracket, which lever engages, in the latched position of the trigger mechanism, a second means on the periphery of the release wheel in the said first position of the release wheel so as to prevent rotation of the release wheel, said rotatable lever also rotatably engaged to a trigger bar which is slidably mounted on said bracket, with spring bias means fastened to the assembly of the lever and the trigger bar to maintain the lever in engagement with the release wheel, such that manual actuated sliding motion of the trigger bar serves to rotate the lever free of engagement with the release wheel, permitting the release wheel to freely rotate from the said second position under the torque of the tension of the flexible cord that is latched to the release wheel, and so that the flexible cord and a taut bow string is freed of engagement with the release wheel.

3. The combination as recited in claim 1 in which the second means consists of a notch extending from the periphery of the release wheel, said notch being of a size to engage the loop of the flexible cord.

4. The combination as recited in claim 3 in which a lever is fastened to the periphery of the release wheel and projects radially from said periphery, said lever serving as a handle to enable manual rotation of the release wheel from the unlatched to the latched position.