Crossbow trigger mechanism
DCFirst Claim
1. A crossbow trigger mechanism, comprising:
- a pivotal string release latch for releasably retaining a bowstring in a drawn position, said string release latch being pivotal about a first pivot point and having a first sear surface associated therewith;
a pivotal rocker latch member having a second sear surface associated therewith which engages said first sear surface to selectively prevent pivotal motion of said string release latch, said first and second sear surfaces lying substantially in a plane when engaged with one another and wherein said rocker latch member being pivotable about a second pivot point and having a portion thereof extending rearward of said second pivot point;
a pivotal trigger member operable to pivot said rocker latch member and disengage said first and second sear surfaces to allow pivotal motion of said string release latch, wherein pivoting of said string release latch releases said bowstring;
said trigger member being pivotable about a third pivot point and having a portion thereof extending rearward from said third pivot point, wherein said rearward extending portion of said trigger member applies force on the rearward extending portion of said rocker latch member to cause pivoting thereof for disengagement of said first and second sear surfaces,said second and third pivots points being positioned in spaced apart relationship in a plane which is substantially parallel to said plane of said sear surfaces.
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Abstract
The present invention is directed to a crossbow trigger mechanism providing improved bowstring retention and release characteristics. The invention further provides a safe and reliable trigger mechanism which enhances accurate shooting with the crossbow. The trigger mechanism comprises a pivotal string release latch for releasably holding a bowstring in a drawn position. The string release latch is pivotable about a first pivot point and has associated therewith a first sear surface. The trigger mechanism further includes a pivotal rocker latch member having a second sear surface which engages the first sear surface on the string release latch to selectively prevent pivotal motion of the string release latch. The rocker latch member is pivotal about a second pivot point and has a portion thereof extending rearward of the second pivot point. A pivotal trigger is operable to pivot the rocker latch member and disengage the first and second sear surfaces to allow pivotal motion of the string release latch for selective release of the bowstring. The trigger is pivotal about a third pivot point and also has a portion thereof extending rearward from the third pivot point. The rearward extending portion of the trigger applies force on the rearward extending portion of the rocker latch member to cause pivoting thereof for disengagement of the first and second sear surfaces. The trigger mechanism is preferably encased within a housing which can be separately installed into a crossbow stock which is positively secured within the crossbow stock to prevent any relative movement therebetween. It is also a feature of the invention to provide an integral sight adjustment system for use with a rear sight of the crossbow. The sight adjustment mechanism is preferably integral to the trigger mechanism to allow simple and effective adjustment of the sight for a particular shooting distance.
157 Citations
27 Claims
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1. A crossbow trigger mechanism, comprising:
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a pivotal string release latch for releasably retaining a bowstring in a drawn position, said string release latch being pivotal about a first pivot point and having a first sear surface associated therewith; a pivotal rocker latch member having a second sear surface associated therewith which engages said first sear surface to selectively prevent pivotal motion of said string release latch, said first and second sear surfaces lying substantially in a plane when engaged with one another and wherein said rocker latch member being pivotable about a second pivot point and having a portion thereof extending rearward of said second pivot point; a pivotal trigger member operable to pivot said rocker latch member and disengage said first and second sear surfaces to allow pivotal motion of said string release latch, wherein pivoting of said string release latch releases said bowstring; said trigger member being pivotable about a third pivot point and having a portion thereof extending rearward from said third pivot point, wherein said rearward extending portion of said trigger member applies force on the rearward extending portion of said rocker latch member to cause pivoting thereof for disengagement of said first and second sear surfaces, said second and third pivots points being positioned in spaced apart relationship in a plane which is substantially parallel to said plane of said sear surfaces. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A crossbow trigger mechanism comprising,
a trigger housing which is to be secured in association with a crossbow, said trigger housing including a plurality of removable pivot pins, with at least one of said pivot pins mounting a pivotal string release latch retained in association with said trigger housing for releasably holding a bowstring in a drawn position, and at least one other of said pivot pins mounting a trigger member operable to selectively allow pivoting of said string release latch, with pivoting of said string release latch, releasing said bowstring, wherein said plurality of pivot pins enable interchangeability between different string release latches and trigger members within the same trigger housing by the positioning of the pivot pin for the pivotal string release latch into at least two different pivot holes within the housing.
Specification