Mechanical guns and projectors – Element – Trigger or releasing mechanism
Patent
1979-03-14
1981-02-10
Pinkham, Richard C.
Mechanical guns and projectors
Element
Trigger or releasing mechanism
F41B 500
Patent
active
042495075
ABSTRACT:
A bowstring draw and release device has a frame in which a hammer is mounted in such a way as to cooperate with a trigger and latch to effect release of the bowstring with a relatively low trigger pressure. The device includes a frame having a recess in its front end and a pivotal latch member adapted to extend across the recess for engaging a loop which is formed into a bight around the bowstring. The latch is tripped to afford offslipping of the loop and hence release of the bowstring and arrow engaged therewith. A latch sear is releasably engaged with the latch and has a portion disposed in the path of movement of a spring biased hammer normally held in a cocked position by a hammer sear connected to the trigger. A suitable handgrip extends rearwardly from the frame and is designed to enable the user to actuate the trigger with his index finger. Rearward pull on the trigger causes the hammer sear to disengage the hammer and release it from the cocked position, whereby the hammer advances forwardly to engage and pivot the latch sear for causing it to disengage the latch, thereby causing the latch to pivot forwardly to release the loop and thereby afford offslipping of the loop from the bowstring and hence release of the arrow knocked therewith.
REFERENCES:
patent: 2982279 (1961-05-01), Pursley
patent: 3937206 (1976-02-01), Wilson
patent: 4004564 (1977-01-01), Castonguag
patent: 4009703 (1977-03-01), Cunningham
patent: 4062339 (1977-12-01), Wilson
patent: 4173210 (1979-11-01), Napier
Browne William R.
Kita Stanley B.
Pinkham Richard C.
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