JP3563992B2 - Training propellant charge - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a training propellant charge, and in particular, by using a resin molded product for each of the pseudo-made charge cylinder pieces that are connected to each other alone or along the axial direction, the number of repetitive use times can be significantly increased as compared with the related art. The present invention relates to a new improvement for increasing the number and enabling accurate function confirmation.
[0002]
[Prior art]
Conventionally, the configuration shown in FIGS. 4 to 8 has been employed as this kind of training propellant charge.
That is, the configuration shown in FIG. 2 is a training firing charge 1 composed of six pseudo-manufactured charging cylinder pieces 1a to 1f having a columnar overall shape. A hollow portion 2 is formed at the axial position.
The case 3 of each of the dummy charging cylinder pieces 1a to 1f is made of a flexible material made of nitrocellulose (pulp) or the like. A coating surface 3a of paint or the like is formed on the outer surface of 3.
The protruding portions 3A formed at one end of each of the pseudo-manufactured charging cylinder pieces 1a to 1f are firmly fitted into concave portions 3B formed at the other ends, and are connected to each other by their frictional force. More training propelling charge 1 constructed as described is configured to be loaded in the loading section 11 of the gun 10 shown in FIG. In some cases, the pseudo-manufactured charge cylinder piece was a single piece.
[0003]
[Problems to be solved by the invention]
The conventional training charge has the following problems because it is configured as described above. That is, since each pseudo-made charging cylinder piece is formed of a case made of pulp or the like, as shown in FIG. 6, play may occur due to wear of each connecting portion, and the whole may be deformed. Further, the bonding strength of each bonding portion was reduced, and the bonding portions were sometimes separated during use.
Further, the coating on the surface of the single or individual pseudo-manufactured medicine cylinder pieces may be rubbed off and peeled off from the mechanical part of the loading part, and the strength may be reduced due to moisture absorption of the part.
In addition, as shown in FIG. 7, the pseudo-propelled charge may be easily bent, and it may be difficult to load the charge into the loading portion.
[0004]
The present invention has been made in order to solve the above problems, and in particular, the number of times of repeated use is made by forming a case of each pseudo-manufactured charging cylinder piece connected to each other alone or in an axial direction as a resin molded product. It is an object of the present invention to provide a training propellant charge capable of performing an accurate function check by greatly increasing the number of conventional propellants.
[0005]
[Means for Solving the Problems]
The training propellant charge according to the present invention is a training propellant charge having a pseudo-formation charge cylinder piece having a predetermined length and an overall shape having a cylindrical shape and having a pseudo charge therein. is than the first cylindrical body provided inside the first tubular member and the first tubular member consists of a second cylindrical body of small diameter having a step portion in Rutotomoni periphery such a resin molded article, the first The tubular body has an inner tubular portion formed integrally with the first tubular body and formed inside in a double tubular shape, and the second tubular body has an outer curved portion formed on its outer periphery and an inner curved portion formed on its inner periphery. Having an inner curved portion, the outer curved portion of the second cylindrical body is connected to an outer end of the first cylindrical body, and the inner curved portion is connected to an inner end of the inner cylindrical portion. it is configured to have.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of a training propellant according to the present invention will be described with reference to the drawings. The same or equivalent parts as those in the conventional example will be described using the same reference numerals.
In FIG. 1, reference numeral 1 denotes a training propellant charge. The training propellant charge 1 has six (one or any number) pseudo-manufactured charging cylinder pieces having a cylindrical overall shape. 1a to 1f, and a hollow portion 2 is formed at the center axis position of each of the pseudo-manufactured charging cylinder pieces 1a to 1f.
The case 3 of each of the pseudo-made charging cylinder pieces 1a to 1f has a predetermined length in the axial direction and is injection-molded with a resin material made of a synthetic resin. It is composed of a certain material (for example, polypropylene).
[0007]
In each of the cases 3, a pseudo charge 4 is incorporated, and a step 3A formed at one end of the case 3 is firmly fitted into a concave portion 3B formed at the other end. 3A and the recess 3B are joined by strong fitting.
[0008]
In addition , the case 3 of each of the pseudo-charged medicine cylinder pieces 1a to 1f is provided inside the first cylinder 3e formed of resin and the first cylinder 3e having the stepped portion 3A and the hollow portion 2. , A second cylindrical body 3f having a smaller diameter than the first cylindrical body 3e. The second cylindrical body 3f is connected to an end of the first cylindrical body 3e so as to be connected to the first cylindrical body 3e. 3e is constituted by an inner cylindrical portion 3Aa.
Therefore, in the embodiment of FIG. 1 described above, each pseudo-made charging cylinder is formed by firmly fitting the step 3A formed at the tip of the first cylinder 3e into the recess 3B formed in the second cylinder 3f. The pieces 1a to 1f are configured to be connected to each other in the axial direction.
[0009]
Therefore, the first cylindrical body 3e has an inner cylindrical portion 3Aa integrally formed with the first cylindrical body 3e and formed inside in a double cylindrical shape, and the second cylindrical body 3f is formed on the outer periphery thereof. It has an outer curved portion 3M and an inner curved portion 3N formed on the inner periphery thereof. The outer curved portion 3M of the second cylindrical body 3f is connected to an outer end 3K of the first cylindrical body 3e. The circumferential curved portion 3N is connected to the inner end 3L of the inner cylindrical portion 3Aa.
[0010]
【The invention's effect】
Since the training charge according to the present invention is configured as described above, the following effects can be obtained. That is, since the case of the single or each pseudo-made charge cylinder piece is made of resin, the number of times of use can be ten times or more as compared with the conventional pseudo-fired charge using pulp, and the running cost can be greatly reduced. Can be.
In addition, since the binding force of each pseudo-manufactured cartridge is stable with almost no decrease in bonding force, accurate function check can be performed, function check interruption due to faulty separation, prevention of fire operation stop due to deformation, etc. can do.
[Brief description of the drawings]
FIG. 1 is a sectional view showing a training propellant charge according to the present invention.
FIG. 2 is a perspective view showing a conventional training charge.
FIG. 3 is a sectional view of FIG. 2;
FIG. 4 is a structural view showing a state in which the training charge of FIG. 2 is bent.
FIG. 5 is a configuration diagram showing a relationship between the training propellant of FIG. 4 and a loading unit.
FIG. 6 is a perspective view showing a loading portion of the gun.
[Explanation of symbols]
1a to 1f Pseudo-manufactured charging cylinder piece 3 Case 3A Step 3e First cylinder 3f Second cylinder
3Aa inner cylinder
3M outer curved part
3K outer edge
3N inner circumference curved part
3L Inner end 30 Intermediate cylinder

Claims (1)

In a training firing charge in which the entire shape is a cylindrical shape and a pseudo-made charge cylinder piece (1a) having a pseudo charge (4) inside has a predetermined length, a case of the pseudo-made charge cylinder piece (1a) ( 3) is stepped portions are both periphery when made of a resin molded article from (the first cylindrical body provided inside the first cylindrical body having a 3A) and (3e) a first tubular member (3e) (3e) of A second cylindrical body (3f) having a small diameter, wherein the first cylindrical body (3e) is an inner cylindrical part (3Aa) integrally formed with the first cylindrical body (3e) and formed inside a double cylindrical shape. has the second tubular member (3f) has an outer peripheral bent portion which is formed on its outer periphery (3M) and the inner inner peripheral bent portion which is formed on the peripheral (3N), said second cylindrical body ( the outer peripheral bent portion of 3f) (3M) is connected to the outer end (3K) of the first tubular member (3e), the inner end (3L of the inner peripheral curved portion (3N) is the inner cylinder part (3Aa) ) , A training charge.

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