COCKING DEVICE FOR MACHINE GUNS
A cocking system for light cannons and machine guns providing an electrical actuation option to an otherwise manual actuation mechanism. The mechanism of the invention employs a pivot of a pulley that engages a cocking handle engaging tongue slidable along a grooved slider. The pulley, around which a cocking cable is wrapped, is pulled by either an auxiliary manual cocking handle, or by an electrical motor. As the engaging tongue is pulled backwards, in a certain point it inclines forwards allowing the forward movement of the cocking handle. The cocking assembly is adapted to both left hand and right hand cocking handle applications. In some embodiments the engaging tongue returns the coking handles to its forward position.
The present invention relates to auxiliary appliances for machine guns. More specifically, the application relates to an electromechanical appliance for cocking the bolt of a machine gun or light cannon.
BACKGROUND OF THE INVENTIONThe bolt of a gun has to be cocked to a rear position in order to begin the cycle of ammunition round firing. The cocking of the bolt brings it to an engaged position by urging it against a spring. The bolt or bolt assembly is released from its rear position to insert a cartridge in the firing chamber of the gun and then to remove the unfired cartridge or the empty case after the round is fired. The bolt fits in the gun behind the firing chamber. For the purpose of manual cocking, a handle is fitted into the bolt. Auxiliary systems for cocking are presented in the present invention as will be described below.
The present invention provides a mechanism for applying mechanical force to cock a bolt of a machine gun or light cannon. The electrically operated mechanical cocking of the invention more than a matter of convenience. The electrical actuation of the cocking procedure enables the operator to operate the weapon without needing to actually handle the weapon's ammunition feed and firing control. For example, the covered operator may actuate a mounted weapon on top of a personnel carrier, thus obviating unnecessary exposure at loading and cocking. The device of the invention is electrically operated and controlled either by the person operating the gun or by any other operator. The device of the invention is versatile with respect to the fact that it can be adapted to more than one type of gun or light cannon. To describe the device of the invention, reference is first made to
To explain the system for cocking the bolt in accordance with the invention, reference is made now to
The system of the invention is versatile in respect to the fact that the CHET module is engageable in both right hand side cocking handles and left hand side cocking handle gun assemblies. The sequence of steps followed in applying the system of the invention to a Browning 0.5 left hand side cocking handle is described in the flow chart of
In some guns notably, FN MAG-58, the bolt is cocked by a cocking handle unattached to the bolt. Rather, it abuts the front face of the bolt, and when pulled backwards it cocks the bolt. The cocking handle must be returned to its forward facing position before the bolt assembly thrusts forwards in order to prevent it from damage by the forward thrust of the bolt. Accordingly, in another embodiment of the invention, as described schematically in
The proximity sensor senses the arrival of the CHET to its rearmost positioning. In the case of an electrical actuation, as in
Another aspect of the invention involves the forward movement of the CHET, within the CHET slider and is described with reference to
Functionally, the CHET always moves forward when the applied force ceases. In cases in which the bolt moves forwards after being pulled backwards, such as in Browning 12.7 mm machine gun, the CHET moves together with the cocking handle which is typically a bolt handle. In such cases as the cocking handle does not move automatically forwards when the force pulling back the bolt ceases, it is the CHET spring that drives the cocking handle forwards, ready to be pulled backwards again when force is applied by way of the cocking cable. In
Claims
1. A bolt cocking system for machine guns and light cannons employing a bolt assembly, adapted for electrical and manual actuation mechanisms, said system comprising:
- a cocking handle engaging tongue (CHET) slidable along a CHET slider for at least pulling a bolt assembly of said bolt assembly;
- a pulley around which a cocking cable is wrapped;
- a pivot of said pulley for engaging with said CHET;
- a spool to which one end of said cable is connected for winding said cocking cable;
- a spring for urging said CHET forwards;
- an electric actuator for rotating said spool, and
- an auxiliary cocking handle for performing manual cocking.
2. A bolt cocking system for machine guns and light cannons as in claim 1 and wherein said CHET is rotatable forwards to enable return of a cocking handle of said bolt assembly driven by a CHET spring.
3. A bolt cocking system for machine guns and light cannons as in claim 1 and wherein said CHET module is engageable in both right hand side cocking handles and left hand side cocking handle gun assemblies
4. A bolt cocking system for machine guns and light cannons as in claim 1 and wherein a proximity sensor senses the arrival of said CHET to its rearmost position.
5. A bolt cocking system for machine guns and light cannons as in claim 4 and wherein the proximity sensor actuates a spool for winding a loose cocking cable.
6. A bolt cocking system for machine guns and light cannons as in claim 4 and wherein said proximity sensor stops a spool from winding a cocking cable.
7. A method for cocking a bolt of a machine gun wherein a cable pulling a cocking handle engaging tongue (CHET), slidable along a slider, pulls said bolt backwards, and wherein the drive for actuating said cable pulling is selected from a group containing a manual pull and an electric pull, and wherein a proximity sensor senses the arrival of said CHET to its rearmost position and when doing so, it toggles the condition of a spool to which the cable is windably attached.
Type: Application
Filed: Nov 27, 2005
Publication Date: Mar 12, 2009
Inventors: Gadi Mamet (Natanya), Shimon Chachamian (Haifa), Yehuda Kiperwas (Kiriat Yam)
Application Number: 11/720,336