Revolver trigger mechanism
AssigneeSturm, Ruger & Company, Inc.
InventorJoseph J. Zajk
Life of this patent
Estimating the term…
Abstract
A revolver with trigger mechanism for cocking a rotatable hammer. The revolver includes a frame, a barrel supported by the frame and defining a bore, at least one chamber aligned with the bore of barrel for holding a cartridge, a hammer pivotally mounted to the frame and moveable between a forward uncocked position and a rearward cocked position, and a trigger pivotally mounted to the frame. In one embodiment, the trigger includes a contoured camming surface configured and arranged to engage a protrusion extending outwards from the hammer for cocking the hammer in response to pulling the trigger. The protrusion may be a hammer dog pivotally coupled to the hammer in some embodiments. In another embodiment, the hammer may include a sear having a contoured camming surface for engaging the trigger.
Claims26
A revolver with trigger mechanism comprising:
- a frame;
- a barrel supported by the frame and defining a bore;
- at least one rotatable chamber aligned with the bore of barrel for holding a cartridge;
- a hammer pivotally mounted in the frame and moveable between a forward uncocked position and a rearward cocked position;
- a hammer dog pivotally coupled to the hammer for cocking the hammer;
- and
- a trigger pivotally mounted to the frame and operable to cock the hammer, the trigger including a concave camming surface configured and arranged to engage the hammer dog and cock the hammer in response to pulling the trigger wherein the hammer dog travels within the concave camming surface.
A revolver with trigger mechanism comprising:
- a cylinder rotatably mounted in a frame and defining a plurality of chambers for holding cartridges;
- a hammer pivotally mounted to the revolver and moveable between a forward uncocked position and a rearward cocked position;
- a hammer dog coupled to the hammer for cocking the hammer;
- and
- a trigger pivotally mounted to the revolver and operable to cock the hammer, the trigger including a concave camming surface configured and arranged to engage the hammer dog, wherein the concave camming surface engages the hammer dog and cocks the hammer in response to pulling the trigger wherein the hammer dog travels within the concave camming surface.
A revolver with trigger mechanism comprising:
- a cylinder rotatably mounted in a frame and defining a plurality of chambers for holding cartridges;
- a hammer pivotally mounted to the revolver and rotatable along a first arcuate path of motion between a rearward cocked position and a forward uncocked position;
- a hammer dog coupled to the hammer and defining a contact surface;
- and
- a trigger pivotally mounted to the revolver and rotatable along a second arcuate path of motion, trigger including a concave camming surface that engages the contact surface of the hammer dog in response to pulling the trigger,
- wherein the concave camming surface of the trigger and the contact surface of the hammer dog are mutually configured and arranged such that the normal contact forces resulting between the trigger and hammer dog act in a line of action that is substantially tangent to both the first and second paths of motion during at least part of a sequence of pulling the trigger wherein the hammer dog travels within the concave camming surface.
A method for cocking a hammer in a revolver comprising:
- providing a firearm having a firing control mechanism including a pivotally mounted hammer and a trigger;
- rotating the trigger;
- moving a concave camming surface on the trigger towards the hammer;
- engaging the concave camming surface with a hammer dog protrusion pivotally coupled to the hammer and extending outwards from the hammer;
- and
- cocking the hammer with the concave camming surface of the trigger wherein the hammer dog travels within the concave camming surface.
A revolver with trigger mechanism comprising:
- a cylinder rotatably mounted in a frame and defining a plurality of chambers for holding cartridges;
- a hammer pivotally mounted to the revolver and moveable between a forward uncocked position and a rearward cocked position;
- a hammer dog coupled to the hammer for cocking the hammer;
- a trigger pivotally mounted to the revolver and operable to cock the hammer, the trigger including a concave camming surface configured and arranged to engage the hammer dog;
- and
- a sear defined by a portion of the hammer and having a contoured lower operating surface engageable with the trigger;
- wherein rotating the trigger to a first position engages the concave camming surface with the hammer dog and partially cocks the hammer wherein the hammer dog travels within the concave camming surface.
Dependencies are inferred from the claim text.