Mechanical
Patents tagged Mechanical
Mar 10, 2026
A crossbow includes a flexible limb with a first end coupled to a frame and a second end. The crossbow includes a draw string that is configured to move between a released position and a drawn position. The crossbow includes a pulley assembly with a lever arm rotatably coupled to the flexible limb and configured to rotate about a lever arm axis. The pulley assembly includes a pulley rotatably coupled to the lever arm and configured to rotate about a pulley axis that is spaced apart from the lever arm axis by a fixed distance. The pulley includes a first and second draw string grooves. The draw string is received by the first and second draw string grooves. The lever arm and the pulley are each configured to rotate in a first direction as the draw string is moved from the released position to the drawn position.
Mar 3, 2026
A crossbow including a frame with a riser and a center rail. First and second flexible limbs are attached to the riser. A draw string is received in string guide journals in first and second cams rotatably attached to the frame. The draw string unwinds from the string guide journals as it translates between a released configuration and a drawn configuration. The first and second cams include at least first and second power cable take-up journals, respectively. At least first and second power cables are attached to the first and second limbs and received in the first and second power cable take-up journals, respectively. As the crossbow is drawn from the released configuration to the drawn configuration the first and second power cables wrap onto the respective first and second power cable take-up journals.
Feb 3, 2026
A firearm comprising at least one frame defining a housing seat of a barrel group; and a barrel group comprising at least one barrel with longitudinal development axis (A), the barrel group being mounted in a tilting manner with respect to the frame between a position in which the barrel group engages the housing seat and a position in which the barrel group is rotated with respect thereto. The barrel group comprises at least one extractor device associated with the barrel and configured to at least partially expel at least a portion of an ammunition from the at least one barrel. The extractor device is configured to selectively operate in a first mode in which it integrally ejects a casing of an exploded ammunition and in a second mode in which it accompanies part of an unexploded ammunition in partial exited from the at least one barrel.
Dec 2, 2025
A mechanical magazine, including a casing and a mechanical driver. The casing includes an ammunition inlet, an ammunition outlet, and an ammunition passage extending from the ammunition inlet to the ammunition outlet. The mechanical driver is disposed on one side of the casing and is configured to drive ammunition pills to move from the ammunition inlet to the ammunition outlet. The mechanical driver includes a rotation disc and an energy storage unit; the rotation disc is rotationally connected to the casing to push the ammunition pills to move along the ammunition passage; the energy storage unit is disposed on the rotation disc and is subjected to elastic deformation to store or release energy when the rotation disc rotates relative to the casing; when the rotation disc rotates in a direction towards the ammunition inlet, the energy storage unit is compressed to save energy.
