Ordnance – Automatic – Firing device operation or control
Patent
1995-10-20
1997-12-09
Johnson, Stephen M.
Ordnance
Automatic
Firing device operation or control
42 6903, F41A 1935
Patent
active
056963467
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a rifle according to the preamble of claim 1.
Rifles for crime fighting are often used at relatively short range. Since unanticipated situations frequently arise requiring a very rapid reaction, police may be faced with a life-threatening disadvantage if they must load their rifles before they can fire a shot.
On the other hand it is dangerous to carry a loaded weapon, since inadvertent contact with the trigger or inadvertent vibration of the weapon may trigger an undesired shot. For this reason, it is frequently forbidden by law to carry rifles in a loaded condition.
One object of the invention is to provide a rifle which is both safe and permits rapid firing thereof.
SUMMARY OF THE INVENTION
This goal is achieved by virtue of the fact that the weapon includes a trigger assembly that is designed as a double-action assembly.
The invention, in other words, proposes the provision of a trigger assembly designed as a double-action assembly. In such dual-action assemblies, the movement of the trigger both cocks the hammer and fires the shot. The fact that work must be performed with the aid of the trigger to cock the hammer means that such assemblies have relatively high trigger weights.
Rifles are usually used as weapons at long range. High trigger weights are generally known to be undesirable under these circumstances since they can cause the weapon to be moved inadvertently so that the aim is relatively inaccurate at high trigger weights, especially at long range. The invention therefore proposes using an assembly that was heretofore considered disadvantageous for use with rifles. Surprisingly, the use of an assembly which is thus considered disadvantageous for rifles offers an advantage for special applications of rifles. When an assembly according to the invention is used, the rifle can always be loaded, so that the shot can be triggered merely by operating the trigger without it being necessary to load the weapon in advance. The term "rifle" is intended to include all relatively long guns, such as those that are typically placed against the shoulder of the user, and is not intended to include short guns such as revolvers or pistols.
At the same time, however, the weapon is relatively safe. According to one practice, hammer abuts a safety latch in a locking position and cannot strike the firing pin even with the strongest of vibrations, where the pin acts on the cartridge and firing the shot. At the same time, the increased trigger weight nearly excludes inadvertent movement of the trigger.
In weapons equipped according to the invention an that are stored in the home, the increased trigger weight ensures that handling of the weapon by children is safer since small children in particular cannot exert the required force to operate the trigger with the increased trigger weight.
Advantageously, a two-part push rod can be provided between the trigger and the hammer, with the trigger moving the hammer with the aid of the push rod from its relaxed position or from its partially cocked safety position into the cocked position. When the hammer flies from its cocked position into the relaxed position, in which it strikes the firing pin and fires the shot, the hammer inadvertently catches the part of the push rod adjacent to it and holds it until the hammer has been moved backward into a position that is located beyond its safety position. This ensures that the hammer can only be acted on by the trigger when the hammer is in its safety position, so that a shot can only be fired deliberately.
Advantageously, the safety latch can be arranged so that the hammer is near the relaxed position in its safety position. This ensures that the overwhelming majority of the effort required to cock the hammer must be applied by the trigger. This has two consequences. Firstly, the large amount of work that is done by the trigger creates a correspondingly high trigger weight, with the above-mentioned safety advantages. Secondly, the hammer has very little energy in its safety p
REFERENCES:
patent: 859974 (1907-07-01), von Pocci
patent: 2441029 (1948-05-01), Nyvall et al.
patent: 2863247 (1958-12-01), Benson
patent: 4028835 (1977-06-01), Canjar
patent: 5000075 (1991-03-01), Tuma
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