Education and demonstration – Organized armed or unarmed conflict or shooting
Reexamination Certificate
1999-04-01
2001-07-10
Cheng, Joe H. (Department: 3715)
Education and demonstration
Organized armed or unarmed conflict or shooting
C434S016000, C434S019000, C073S379020
Reexamination Certificate
active
06257893
ABSTRACT:
FIELD OF THE INVENTION
The invention concerns a process for training the tactile perception of a marksman.
It also concerns a device for the actuation of this process.
The invention more particularly concerns the branch of sport shooting where success depends to a great extent on mastering the pressure of the finger on the trigger.
BACKGROUND OF THE INVENTION
Two fundamental parameters characterize the technique:
a/ being “opposite” the target;
b/ holding the firearm in a stable way at the moment of departure of the shot.
In order to master the departure of the shot, the marksman must be able to maintain and control the pressure of his forefinger on the trigger at the nearest possible value to that of the departure of the shot, in such a way as to reach it and to cross the threshold without disturbing the immobility of the firearm. Otherwise, the “finger blow” happens and leads to failure. The tactile sense allows the marksman to evaluate the value of the pressure exercised by the forefinger on the trigger, but not very precisely. The following exercise shows this: if one asks the marksman to compare the trigger of a gun model “DES 69” to that of a revolver model “MR73”, he finds that of the “DES” heavier while the contrary is true (1000 gf against 1360 g, the error being due to the fact that the trigger of the “MR 73” is more progressive).
A good marksman (regional level) presses on the trigger as progressively as possible. He sends the order to his forefinger, then he does not think of it anymore while trying to remain in line. He has to be surprised by the departure of the shot.
An excellent marksman (international level) increases pressure until the threshold of departure of the shot. He maintains this critical pressure until the moment when his sighting line is perfect, and once stabilized, he crosses the threshold without moving his firearm.
A very good marksman (national level) oscillates between the two previous techniques, according to his shape of the moment.
SUMMARY OF THE INVENTION
Based on the finding that the tactile sense gives a very insufficient quantitative evaluation of the pressure, and in order to make up for this physiological drawback, one can only conclude that it is necessary to train the Pacini corpuscles which are the receivers of the deep pressure, situated under the skin of the first phalanx of the forefinger.
According to the invention, this training can be realized starting from a simple idea: basing oneself on the perception of our more exact senses (hearing and, above all, sight) to develop the acuteness of the tactile sense and of the tactile perception of the pressure.
By at least one supplementary perception (visual and/or auditive), the invention thus proposes to equip the marksman with two accompanying perceptions if the same tactile stimulus, advantageously simultaneous and proportional, allowing thus to refine and to train the tactile perception, and at the same time allowing to accustom the respective muscles to as exactly as possible dosing their effort of finding, as by reflex, the contraction level required.
In the known art, nothing of the like exists in this branch, so the idea arose to build a device allowing to quantify the pressure exercised by the forefinger on the trigger and to transform it in order to make it accessible simultaneously and in a proportionately quantified way to the sense of hearing and/or the sense of sight, which are more exact than the tactile sense, thus to get more exact information.
The transformation of pressure into signals can be effected according to three main embodiments; the second of these embodiments is more suitable for the aim than the first, and the last embodiment, involving a piezoelectric receiver, is the most suitable.
The piezoelectricity, which is maintained in a preferred embodiment of the invention, is applied to a firearm and to a shooting simulation system which features, besides the training of tactile perception in connection with motor skills, with the help of a video system equipped with a software interface, new pedagogic elements suitable for improving the marksman's technique: detection of the “finger blow” and indication of the stability of the firearm or of its motion at the departure of the shot. The shooting simulation system can be complemented with a device based on the use of an electromagnet, simulating the setback at the departure of the shot; this shooting simulation being practiced by firearm marksmen in the same way as compressed gas shooting which is part of the training of these marksmen.
The process according to the invention concerns real shooting as well as simulated shooting.
The invention thus has for object a process for training the tactile perception of a marksman, in particular of a sport marksman, said marksman exercising a pressure on the trigger of a real or simulation firearm, said pressure triggering off the shot when it crosses a predetermined threshold, characterized in that it includes at least the following steps:
measuring the pressure exercised on said trigger by the marksman's finger;
conversion of said measured pressure into electric signals representing the instantaneous amplitude of the pressure vector;
handling of said electric signals, perceptible by a sense of the marksman other than the tactile sense, so that he can in real time follow the variation of the pressure exercised on said trigger until the departure of said shot in simultaneity and synchronism with the tactile perception perceived by said finger.
The process and the device according to the invention present many advantages and, in particular, they contribute efficiently to mastering the shot. They solicit the sense of sight and/or the sense of hearing in addition to the tactile sense. Thus, the process involves several senses, both simultaneous and proportional.
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Armstrong Westerman Hattori McLeland & Naughton LLP
Cheng Joe H.
LandOfFree
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