Archery bowstring back tension release

An archery bowstring release, comprising:

• a) a hand grip member,
• b) a post extending forwardly from the hand grip member,
• c) a hook member having a bowstring-engaging hook,
• d) a cam member mounted pivotally on the post, a frame member mounted pivotally on the post for rotation about the cam member, and a pivot mounting the hook member on the frame member with the end of the hook member opposite the hook being releasably engageable with the cam member upon rotation of the frame member, and
• e) an arcuate arrangement of a gear thread on the end of the hook member opposite said hook, and a worm gear mounted on the post and engaging the gear thread for securing the hook member in a predetermined position of adjustment.

An archery bowstring release, comprising:

• a) a hand grip member,
• b) a post extending forwardly from the hand grip member,
• c) a hook member having a bowstring-engaging hook,
• d) a cam member mounted pivotally on the post, a frame member mounted pivotally on the post for rotation about the cam member, and a pivot mounting the hook member on the frame member with the end of the hook member opposite the hook being releasably engageable with the cam member upon rotation of the frame member, and
• e) an arcuate arrangement of a plurality of closely spaced grooves on the cam member, and a pin on the post releasably engageable selectively with said grooves for securing the cam member in a predetermined position of rotational adjustment.

An archery bowstring release, comprising:

• a) a hand grip member,
• b) a post extending forwardly from the hand grip member,
• c) a hook member having a bowstring-engaging hook,
• d) pivot means operatively interengaging the hook member and post for adjusting the angular position of the hook member relative to the post through substantially infinite increments over a predetermined range to release the bowstring upon lateral tilting of the hand grip member to a substantially unpredictable degree,
• e) securing means operatively interengaging the hook member and post for securing the hook member in angular position relative to the post, and
• f) a safety member mounted on the hand grip member for movement between an operative position securing said hook member against pivotal movement, and a released position enabling pivotal movement.

An archery bowstring release, comprising:

• a) a hand grip member,
• b) a post extending forwardly from the hand grip member,
• c) a hook member having a bowstring-engaging hook,
• d) pivot means operatively interengaging the hook member and post for adjusting the angular position of the hook member relative to the post through substantially infinite increments over a predetermined range to release the bowstring upon lateral tilting of the hand grip member to a substantially unpredictable degree, the pivot means comprising a cam member mounted pivotally on the post, a frame member mounted pivotally on the post for rotation about the cam member, and a pivot mounting the hook member on the frame member with the end of the hook member opposite the hook being releasably engageable with the cam member upon rotation of the frame member, and
• e) securing means operatively interengaging the hook member and post for securing the hook member in angular position relative to the post.

An archery bowstring release, comprising:

• a) a hand grip member,
• b) a post extending forwardly from the hand grip member,
• c) a hook member having a bowstring-engaging hook,
• d) pivot means operatively interengaging the hook member and post for adjusting the angular position of the hook member relative to the post through substantially infinite increments over a predetermined range to release the bowstring upon lateral tilting of the hand grip member to a substantially unpredictable degree, the pivot means comprising a pivot pin on the post mounting the hook member for rotation about the axis of the pivot pin, and the securing means comprises an arcuate arrangement of a plurality of closely spaced grooves on the end of the hook member opposite said hook, and a pin mounted on the post and releasably engageable selectively with the grooves for securing the hook member in a predetermined position of adjustment, and
• e) securing means operatively interengaging the hook member and post for securing the hook member in angular position relative to the post.

An archery bowstring release, comprising:

• a) a hand grip member,
• b) a post extending forwardly from the hand grip member,
• c) a hook member having a bowstring-engaging hook,
• d) pivot means operatively interengaging the hook member and post for adjusting the angular position of the hook member relative to the post through substantially infinite increments over a predetermined range to release the bowstring upon lateral tilting of the hand grip member to a substantially unpredictable degree, the pivot means comprising a pivot pin on the post mounting the hook member for rotation about the axis of the pivot pin, and
• e) securing means operatively interengaging the hook member and post for securing the hook member in angular position relative to the post, the securing means comprising an arcuate arrangement of a gear thread on the end of the hook member opposite said hook and a worm gear mounted on the post and engaging the gear thread for securing the hook member in a predetermined position of adjustment.

An archery bowstring release, comprising:

• a) a hand grip member,
• b) a post extending forwardly from the hand grip member,
• c) a hook member having a bowstring-engaging hook,
• d) pivot means operatively interengaging the hook member and post for adjusting the angular position of the hook member relative to the post through substantially infinite increments over a predetermined range to release the bowstring upon lateral tilting of the hand grip member to a substantially unpredictable degree, the pivot means comprising a cam member mounted pivotally on the post, a frame member mounted pivotally on the post for rotation about the cam member, and a pivot mounting the hook member on the frame member with the end of the hook member opposite the hook being releasably engageable with the cam member upon rotation of the frame member, and
• e) securing means operatively interengaging the hook member and post for securing the hook member in angular position relative to the post, the securing means comprising an arcuate arrangement of a plurality of closely spaced grooves on the cam member, and a pin mounted on the post and releasably engageable selectively with said grooves for securing the cam member in a predetermined position of adjustment.

An archery bowstring release, comprising:

• a) a hand grip member,
• b) a post extending forwardly from the hand grip member,
• c) a hook member having a bowstring-engaging hook,
• d) pivot means operatively interengaging the hook member and post for adjusting the angular position of the hook member relative to the post through substantially infinite increments over a predetermined range to release the bowstring upon lateral tilting of the hand grip member to a substantially unpredictable degree, the pivot means comprising a cam member mounted pivotally on the post, a frame member mounted pivotally on the post for rotation about the cam member, and a pivot mounting the hook member on the frame member with the end of the hook member opposite the hook being releasably engageable with the cam member upon rotation of the frame member, and
• e) securing means operatively interengaging the hook member and post for securing the hook member in angular position relative to the post, the securing means comprising an arcuate arrangement of a gear thread on the cam member and a worm gear mounted on the post and engaging the gear thread for securing the cam member in a predetermined position of adjustment.