JP2024043662A - Movable firing pin of model gun - Google Patents

Abstract

[Problem] To provide a movable front firing pin for a model gun, which indirectly transmits the impact force at the beginning of ignition to the gun barrel by installing an elastic material, delaying the time, thereby reducing the burden on the gun barrel and preventing damage to the gun barrel. [Solution] A front firing pin holder 3 is provided, which is fixed to the gun barrel. A front firing pin 2 is slidably mounted inside the front firing pin holder 3. An O-ring 5 is placed between the flange 2A of the front firing pin 2 and the end of the front firing pin holder 3. The impact force applied to the front firing pin 2 when the gunpowder ignites is transmitted to the gun barrel 1 via the elastic material. [Selected Figure] Figure 4

Description

The present invention relates to a movable front firing pin for a model gun that receives gunpowder pressure after igniting gunpowder in a cartridge.

The part installed inside the barrel of an automatic model gun that ignites the gunpowder in the cartridge or receives gunpowder pressure is called the "forefiring pin." The firing pin of real guns is installed at the back of the cartridge, but in model guns it is installed at the front, so it is called the ``front firing pin.''

In this type of model gun, when the trigger is pulled, the firing pin pushed by a firing device such as a hammer hits the rear end of the cartridge, and the gunpowder inside the cartridge is crushed by the front firing pin and the rear firing pin. It has a structure that causes it to ignite. At that time, due to the nature of toy gunpowder, a heavy load was placed on the gun body, especially the barrel, and there was a risk that the barrel would be damaged.

The forefire pin located inside the barrel ignites the gunpowder loaded in the cartridge. The pressure generated during firing is transmitted to the gun body and cartridge, creating an action and impact that mimics that of a real gun. The fore-firing pin was either manufactured integrally with the gun barrel or was fixed to the gun barrel with a screw or the like in order to transmit the impact to the gun body.

On the other hand, when the toy gunpowder used in model guns ignites, the pressure reaches its peak quickly. However, as a toy gun with low impact resistance, it is preferable not to receive pressure directly (see Table 1). In other words, if this pressure is directly applied quickly, an instantaneous impact will be applied to the gun body, and the maximum pressure will directly apply an excessive load to the gun body before the cartridge moves. Preferably, if the load applied to the gun body reaches the maximum pressure after the cartridge begins to move, the pressure at the initial stage of firing will be dispersed between the gun body and the cartridge. As a result, excessive load on the gun body is reduced.

Model guns equipped with a front firing pin are described in, for example, Patent Document 1 and Patent Document 2. The model gun described in Patent Document 1 has an expandable detonator 4 (front firing pin) in the gun barrel 2 to create an airtight state between the inner surface of the cartridge 3 and the front firing pin, thereby preventing the toy gunpowder 7 from detonating. The aim is to increase the effectiveness.

On the other hand, the model gun described in Patent Document 2 provides a detonator (front firing pin) that reduces explosions and misfires of gunpowder, and a cartridge control spring 29 (hereinafter referred to as spring) is installed in the detonator 18 (front firing pin) It has been established.

In other words, a spring is provided between the front striking pin and the cartridge 31, and when the cartridge is being fed, the spring comes into contact with the top of the cartridge 31, preventing the explosive from exploding accidentally when the cartridge is being fed.

Utility Model Registration No. 3150763 Utility model registration No. 3168445

However, the firing pins described in Patent Documents 1 and 2 are both fixed to the barrel, so the structure remains the same, with the firing pin and barrel being subjected to an instantaneous load caused by the initial impact force when the gunpowder ignites inside the cartridge.

In Patent Document 1, a head 5 that can expand under the pressure of gunpowder gas is provided at the tip of an expandable detonator 4 (fore-firing pin), and when the gunpowder ignites, this head 5 fits tightly into the gap 53 with the inner surface of the cartridge 3, pushing the cartridge 3 to the rear of the cartridge chamber without allowing the ignition gas to leak out. However, this expandable detonator 4 (fore-firing pin) is fixed to the gun barrel. Therefore, the initial impact force of ignition places an instantaneous load on the fore-firing pin and the gun barrel.

In addition, Patent Document 2 has a structure in which a spring is provided in the detonator 18 (front striking pin) to cushion the momentum of the cartridge 31 during feeding and prevent the explosive from exploding accidentally, but the detonator 18 (front striking pin) is fixed to the barrel. For this reason, the impact force at the beginning of ignition places an instantaneous load on the front striking pin and the barrel.

As such, the firing pins of conventional model guns are all fixed to the barrel, so the initial impact force of ignition places a momentary load on the firing pin and barrel. As a result, there is a risk that the barrel will be damaged if toy gunpowder is fired repeatedly.

The present invention was created to solve the above problems, and aims to provide a movable firing pin for a model gun that reduces the strain on the barrel caused by the impact force at the beginning of ignition and prevents damage to the barrel by temporarily receiving the peak of pressure transmitted from the firing pin to the barrel with an elastic material and delaying the time.

The first means of the present invention to achieve the above-mentioned objective is to provide a front firing pin 2 attached to the barrel 1 of a model gun with a front firing pin holder 3 fixed to the barrel, and the front firing pin 2 is slidably attached inside the front firing pin holder 3, and an elastic material is placed between the flange 2A on the outer periphery of the front firing pin 2 and the longitudinal end of the front firing pin holder 3, so that the impact applied to the barrel 1 at the initial stage of ignition is temporarily absorbed and transmitted by the front firing pin 2 and the elastic material.

The fore firing pin 2 of the second means has one end housed in the fore firing pin holder 3, and the other end is provided so that the toy gunpowder 11 in the cartridge 10 is ignited by an impact from behind. When loading, the other end of the fore-firing pin 2 comes into contact with the piston 10A in the cartridge 10, but the tip of the cartridge 10 comes into contact with the flange 2A so that the cartridge 10 is stopped so as not to fire the toy gunpowder 11. It is composed of

A third means is to provide a front firing pin pin 4 that passes through the front firing pin 2 inside the front firing pin holder 3 from a side surface thereof. In addition, this front firing pin pin 4 has a through hole 2B passing through the front firing pin 2 formed in an oval shape along the longitudinal direction in order for the front firing pin 2 to operate, and the front firing pin 2 and the front firing pin holder 3 are separated. I tried not to do that.

The elastic material of the fourth means is an O-ring 5 or a spring.

According to the present invention, the front firing pin is slidably mounted inside the front firing pin holder, and an elastic material is disposed between the flange provided on the outer circumferential surface of the front firing pin and the longitudinal end of the front firing pin holder. By configuring the structure so that the impact applied to the front firing pin is transmitted to the gun barrel through the elastic material, it is possible to buffer the maximum pressure caused by the initial stage of ignition of the toy gunpowder and adjust the time for the impact to be transmitted to the gun barrel. Instant pressure is relieved. As a result, the load on the gun barrel can be reduced and damage to the gun barrel can be prevented.

FIG. 1 is an exploded perspective view showing an embodiment of the present invention. FIG. 1 is a sectional view showing an embodiment of the present invention. FIG. 2 is a sectional view of a main part showing the installed state of the present invention. 1 is a cross-sectional view of a main part showing a state in which a toy explosive is ignited by the front striking pin of the present invention. FIG. FIG. 2 is a sectional view of a main part showing a conventional front firing pin in a fixed state.

The present invention relates to an improvement of a fore-firing pin 2 for igniting toy gunpowder 11 in a cartridge 10 in a model gun.

The structure of the present invention is that a muzzle firing pin holder 3 is fixed to a gun barrel 1, and a muzzle firing pin 2 is slidably housed inside this muzzle firing pin holder 3 (see FIG. 1). The front firing pin holder 3 is fixed to the gun barrel 1 with a front firing pin screw 6 or the like (see FIG. 3). In the illustrated example, the forward firing pin screw 6 is crimped into a fixing groove 3A recessed in the center outer periphery of the forward firing pin holder 3 to be fixed to the gun barrel 1. At this time, the shape and fixing means of the forward firing pin holder 3 can be changed arbitrarily.

The front firing pin 2 is a rod-shaped member that is slidably mounted inside the front firing pin holder 3 (see Figure 2). One end of this front firing pin 2 is stored inside the front firing pin holder 3, and the other end ignites the toy explosive 11 in the cartridge 10 (see Figure 3). In the illustrated example, the storage side of the front firing pin 2 that is stored inside the front firing pin holder 3 is made thin, and the crimping side that crimps and ignites the toy explosive 11 is made thick, but the shape and length of the front firing pin 2 can be changed as desired.

Furthermore, the front firing pin 2 is provided with a flange 2A and a through hole 2B (see Figure 1). The flange 2A is a portion that protrudes from the outer circumferential surface of the front firing pin 2. The flange 2A shown in the figure is formed at the boundary between the storage side and the crimping side of the front firing pin 2. Furthermore, an elastic material is placed between this flange 2A and the end of the front firing pin holder 3 (see Figure 2). The elastic material shown in the figure is an O-ring 5, but this can be changed to any other material, such as a spring.

Then, when the maximum pressure is generated due to the initial stage of ignition of the toy gunpowder 11, the impact applied to the front firing pin 2 is transmitted to the front firing pin holder 3 via the O-ring 5 (see FIG. 4). As a result, the impact force applied to the front firing pin 2 at the initial stage of firing is absorbed by the O-ring 5 and then transmitted to the barrel 1, thereby delaying the time for the maximum pressure at the initial stage of firing of the toy gunpowder 11 to be transmitted to the barrel 1. (See Table 1).

In the illustrated example, a front firing pin pin 4 is provided that passes through the internal front firing pin 2 from the side surface of the front firing pin holder 3 (see FIG. 2). Further, a through hole 2B through which the front firing pin pin 4 passes through the front firing pin 2 is formed in an elliptical shape along the longitudinal direction of the front firing pin 2. The front firing pin pin 4 prevents the front firing pin 2 from coming off.

In the present invention, when the cartridge 10 is loaded into the model gun, the distal end of the cartridge 10 is configured to come into contact with the flange 2A (see FIG. 3). That is, the forward firing pin 2 is provided such that one end is housed in the forward firing pin holder 3 and the other end ignites the toy gunpowder 11 in the cartridge 10.

When the cartridge 10 is loaded, the tip of the cartridge 10 comes into contact with the flange 2A, so that the front striking pin 2 maintains a distance just before igniting the toy explosive 11 in the cartridge 10 (see Figure 3). When the model gun's firing pin (not shown) strikes the rear end of the cartridge, the toy explosive 11 in the cartridge 10 is crushed by the front striking pin 2 and piston 10A against the rear firing pin, causing it to ignite.

In this way, the impact force at the initial stage of ignition is transmitted to the gun barrel 1 with a buffered force and a delay in time, thereby reducing damage to the gun barrel 1 and repelling the pressure applied to the elastic material such as the O-ring 5. This also makes the pressure time distribution for moving the cartridge 10 rearward more efficient (see FIG. 4).

Note that the configuration of each part of the present invention is not limited to the illustrated example, and may be changed to other shapes without changing the gist of the present invention.

1 Gun barrel 2 Forend firing pin 2A Flange 2B Through hole 3 Fore firing pin holder 4 Fore firing pin pin 5 O ring 6 Fore firing pin screw 10 Cartridge 10A Piston 11 Toy gunpowder 20 Conventional fore firing pin

Claims (4)

A movable front firing pin for a model gun, which is attached to the barrel of the model gun, is provided with a front firing pin holder fixed to the barrel, the front firing pin is slidably attached inside the front firing pin holder, and an elastic material is disposed between the flange portion on the outer periphery of the front firing pin and the longitudinal end of the front firing pin holder, so that the impact applied to the front firing pin when the gunpowder is ignited is transmitted to the barrel via the elastic material. The fore firing pin has one end housed in the fore firing pin holder and the other end for igniting the toy gunpowder in the cartridge, and when the cartridge is loaded, the other end of the fore firing pin touches the piston in the cartridge. 2. The movable fore firing pin for a model gun according to claim 1, wherein the movable fore firing pin for a model gun is configured such that the cartridge does not come into contact with toy gunpowder, and the tip of the cartridge comes into contact with the flange to stop the cartridge. A front firing pin pin passing through the front firing pin inside from a side surface of the front firing pin holder is provided, and a through hole through which the front firing pin pin passes through the front firing pin is formed in an elliptical shape along the longitudinal direction of the front firing pin. 2. The movable fore firing pin for a model gun according to claim 1, wherein the fore firing pin is configured so as not to obstruct sliding of the fore firing pin. The movable front firing pin for a model gun according to claim 1, wherein the elastic material is an O-ring or a spring.