DE1168294B - Switching device for firing machine weapons - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY GERMAN M) 9W> PATENTAMT Internat. Class: F 07 k

EDITORIAL

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German class: 72 h-1/02

1 168 294
L36127Ic / 72h
May 11, 1960
April 16, 1964

For the firing of machine guns normally set up for the release of continuous fire are, it is necessary to create a magnetic drive that makes it possible to work with these devices as well To emit single fire. A firing rod, for example, is actuated by means of this magnet after switching off the magnet is pulled back into the starting position by a spring.

In order to ensure a precise single fire release even with a long series of shots, it is necessary to the switching element used to actuate the electromagnet with the smallest possible time delay or after the shot is fired, d. H. after the magnet has been attracted to switch off.

The time behavior of the electrical part of such a firing device must be influenced by the time behavior of the mechanical part be matched so that the firing rods back into the Zero position is brought, which is a maximum of half the time between two shots with continuous fire. For this it is necessary that the magnet is unlocked again without delay when it reaches its end position reached when tightening, so that the firing rod can be tightened immediately by the spring.

So far, circuits for the optional delivery of continuous and single fire have become known, but exhibit these circuits as a result of the electromagnet being switched off too indirectly in the event of a single fire too great a time lag.

This disadvantage is avoided according to the invention that the coupled to the magnet Auxiliary switch in the event of a single fire this work relay switches off directly and at the same time as a second function in in a known manner, another shot is fired without a renewed actuation of the command switch by switching on of the auxiliary relay prevented.

It is also advantageous if only a single contact of the in the working circuit of the electromagnet Working relay is. This reduces the technical effort in terms of contacts and, above all, associated Extinguishing links reduced.

This switching device shown in the drawing does not require any major effort in the control circuit. Here α is the command switch, r the selector switch for the optional activation of continuous fire or single fire and g the magnet. The auxiliary switch coupled to the magnet has the designation / ?. The working relay is labeled with the letter t and its contact in the working circuit with t _x. The auxiliary relay s has the break contact S ₁ and the make contact S ₀ . The designations ο and m apply to the extinguishing elements.

Switching device for firing
of machine guns

Applicant:

Licentia Patent-Verwaltungs-G. m. b. H.,

Frankfurt / M., Theodor-Stern-Kai 1

Named as inventor:

Dipl.-Ing. Armin Schönherr, Hamburg-Niendorf

The mode of operation is as follows: In the event of continuous fire, the selector switch r is closed. If switch a is operated, relay Z receives voltage via contact r and picks up. This closes the working circuit ij and actuates the magnet. At the same time, the switch ρ , which is mechanically coupled to the magnet, is brought into position 2 so that the relay s receives voltage and is self-holding via the contact ^ as long as the actuating switch remains closed. By opening α , the relays t and s are switched off, so that the magnet drops out and the continuous fire is ended.

In the case of a single fire, the selector switch r is open. By actuating the switch α the working relay t receives voltage via the auxiliary switch ρ coupled to the magnet and the contact S ₁ and closes the working circuit with the help of the contact t _v so that the magnet attracts and at the same time the auxiliary switch ρ coupled to it is in position 2 brings. As a result of this switching, the coil of the relay t is de-energized, and at the same time the auxiliary relay s now receives voltage and, with the help of its contact s ₂ , is self-holding. Since the relay t has become dead, the working _circuit is interrupted again by opening t t, and the magnet returns to its rest position. Since the auxiliary relay s is still energized, the contact S _{1 is} open, and the working relay t , even if the switch ρ has returned to position 1, cannot pick up again until the auxiliary relay opens by opening the switch α s drops and contact S ₁ closes again. Only then is another single shot released.

The circuit specified according to the invention has the particular advantage that for switching the Working circuit only a single relay is required. This is useful because the relay contacts of the Working circuit for the switching capacity of the magnet

409 559/51

must be designed. In addition, a reduction in the number of contacts reduces the susceptibility to failure and the required maintenance of the system. The elimination of further contacts in the working circuit also reduces the cost of quenching elements. This is particularly important if the system has to be suppressed furik. The auxiliary relay 5 can be dimensioned weaker in terms of power, since its contacts S ₁ and S ₂ only have to switch relatively low control currents.

Claims (2)

Patent claims: 1.Switching device for firing machine weapons, which, when the command switch is switched on, optionally enables both continuous fire and individual fire to be carried out and which contains a magnet switched by means of a working relay in the working circuit and an auxiliary switch mechanically coupled to the magnet in the control circuit and an auxiliary relay, characterized in that that the auxiliary switch (p ) coupled to the magnet (g) switches off this working relay (i) directly in the event of a single fire and, as a second function, another shot is fired in a known manner without having to press the command switch (a) again by switching on the auxiliary relay (s ) prevented. 2. Switching device for firing machine weapons according to claim 1, characterized in that only a single contact (J ₁ ) of the working relay (i) is connected in a known manner in the working circuit of the magnet (g). Considered publications:
German Patent No. 396,623;
U.S. Patent No. 2,448,024. 1 sheet of drawings «9 559/51 4.64 © Bundesdruckerei Berlin