Bow trigger mechanism

• US 4,574,767 A
• Filed: 03/30/1984
• Issued: 03/11/1986
• Est. Priority Date: 03/30/1984
• Status: Expired due to Fees

• Current Assignee: Matthew R. Gazzara
• Original Assignee: Matthew R. Gazzara
• Inventors: Gazzara, Matthew R.
• Primary Examiner(s): Pinkham, Richard C.
• Assistant Examiner(s): Layno, Benjamin
• Application Number:
  US06/595,465
• Time in Patent Office: 711 Days
• Field of Search: 124/35 A
• US Class Current: 124/35.2
• CPC Class Codes: F41B 5/1469 Bow-string drawing or releasing devices F41B5/1473 takes precedence

Abstract

A bow trigger mechanism is disclosed which includes a pair of spaced-apart frame members, the frame members defining an operating opening therewithin and terminating rearwardly in an integral handle featuring relatively wide bearing finger pulls. A pair of first and second bent jaws are pivotally retained within the spaced frame members and are movable between a normally closed and locked position to an open position wherein a clearance opening sufficient to allow passage of a bowstring is formed. A non-compressible, non-extendable spring is positioned in linear arrangement between the rearward extensions of the bent jaws and has its respective ends pivotally connected thereto. At least a major portion of the spring is exposed within the operating opening. By pulling rearwardly upon the spring within the clearance opening, the linear arrangement of the spring is transformed into an arcuate configuration, thereby causing the spring ends to move closer together to thus pull the rearward extensions of the jaws toward each other. The inward movement of the jaw extensions creates pivotal movement to open or close the jaw forward ends for bowstring loading, pulling and releasing purposes.

Claims

1. A bow trigger mechanism comprising

a frame means to support a pair of first and second jaws in operating relationship,

the frame means terminating rearwardly in an operating handle, the frame means being provided with an operating opening therethrough;

a pair of first and second jaws secured to the frame means for pivotal movement of at least one of the jaws relative to the frame means,

the jaws being configured to define respective rearward extensions and respective bowstring contacting portions;

biasing means positioned at least partly within the operating opening to pivot at least one of the jaws,

the biasing means being movable from an initial linear configuration to a second non-linear configuration,

the biasing means terminating in a first end and in a second end, the first end biasing against a rearward portion of the first jaw and the second end biasing against a portion of the rearward extension of the second jaw,

the biasing means comprising a coil spring having a plurality of circular coils arranged in side-by-side juxtaposition, the adjacent coils continuously contacting each other when the biasing means is in either its linear configuration or its non-linear configuration;

whereby movement of the biasing means from the initial linear position to the second non-linear position causes at least one of the jaws to pivot relative to the frame means to cause a clearance opening between the bowstring contacting portions of the jaws for bowstring passage purposes.

2. The bow trigger mechanism of claim 1, wherein the biasing means is non-compressible and non-extendable.

3. The bow trigger mechanism of claim 2, wherein the biasing means is bendable.

4. The bow trigger mechanism of claim 1, and an axially positioned loading means, the loading means being adapted to engage the biasing means from its initial, linear configuration to its second, non-linear configuration.

5. A bow trigger mechanism comprising

a frame means to support a pair of first and second jaws in operating relationship,

the frame means terminating rearwardly in an operating handle, the frame means being provided with an operating opening therethrough;

a pair of first and second jaws secured to the frame means for pivotal movement of at least one of the jaws relative to the frame means,

the jaws being configured to define respective rearward extensions and respective bowstring contacting portions;

biasing means positioned at least partly within the operating opening to pivot at least one of the jaws

the biasing means being movable from an initial linear configuration to a second non-linear configuration,

the biasing means terminating in a first end and in a second end, the first end biasing against a rearward portion of the first jaw and the second end biasing against a portion of the rearward extension of the second jaw,

the biasing means comprising a coil spring having two ends and a threaded fitting interposed between each respective end of the coil spring and the respective rearward portions of the first and second jaws;

whereby movement of the biasing means from the initial linear position to the second non-linear position causes at least one of the jaws to pivot relative to the frame means to cause a clearance opening between the bowstring contacting portions of the jaws for bowstring passage purposes.

6. The bow trigger mechanism of claim 5, wherein the threaded fittings respectively threadedly engage end portions of the coil spring in a secure, non-movable relationship.