US 9,958,232 B1Granted

Mechanism for drawing, cocking, and triggering a crossbow

AssigneeExcalibur Crossbow, Inc.

InventorsKyle William Egerdee, Stephen Donald Langdon, Benjamin Dean Blosser, Daniel Pierre Brassard

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Abstract

An inventive mechanism includes stationary, reciprocating, winch, and stock subassemblies. The winch subassembly is mounted on the stock subassembly; the stationary subassembly is mounted at the rear of a slotted mainframe of the stock subassembly; the reciprocating subassembly moves along the mainframe between forward brace and rearward drawn positions. The winch subassembly takes up a rope to cause rearward movement of the reciprocating subassembly and lets out the rope to permit forward movement. The reciprocating subassembly includes a body engaged with the slot, a catch, and a sear. The stationary subassembly includes a trigger and an actuator. In the drawn position and retaining a bowstring, trigger movement causes actuator movement, which causes sear movement, which permits catch movement, which releases the bowstring. In its latched position, a trigger latch obstructs forward movement of the reciprocating subassembly from the drawn position; in its unlatched position, it permits that forward movement.

A mechanism for drawing, cocking, and triggering a crossbow, the mechanism comprising:

a stationary subassembly;
a reciprocating subassembly;
a winch subassembly;
and a stock subassembly of the crossbow including an elongated mainframe with a longitudinal slot, wherein:
(a) the winch subassembly is mounted in the stock subassembly, the stationary subassembly is mounted on a rearward portion of the mainframe, and the reciprocating subassembly is engaged with the slot of the mainframe so as to be movable along the mainframe between a forward brace position and a rearward drawn position;
(b) the reciprocating subassembly comprises a body engaged with the slot of the mainframe, a catch, and a sear;
(c) the stationary subassembly comprises a trigger and an actuator;
(d) the winch subassembly comprises a spool, a crank handle coupled to rotate the spool, and a rope coupled to the reciprocating subassembly so that (i) rotation of the spool to take up the rope causes movement of the reciprocating subassembly in a rearward direction along the mainframe in response to tension on the rope, and (ii) rotation of the spool to let out the rope permits movement of the reciprocating subassembly in a forward direction along the mainframe;
and
(e) with the reciprocating subassembly in the drawn position and a bowstring of the crossbow retained by the catch, the trigger, the actuator, the sear, and the catch are arranged so that (i) movement of the trigger causes movement of the actuator, (ii) movement of the actuator causes movement of the sear, (iii) movement of the sear permits movement of the catch, and (iv) movement of the catch releases the bowstring;
(f) one or both of the stationary subassembly or the reciprocating subassembly includes a trigger latch movable between a latched position and an unlatched position and arranged so as to, (i) in the latched position and with the reciprocating subassembly in the drawn position, obstruct movement of the reciprocating subassembly from the drawn position in the forward direction, and (ii) in the unlatched position, permit movement of the reciprocating subassembly from the drawn position in the forward direction.

8 more elements

Abstract

Claims25