Patent Description:
In a so-called electric gun which uses a rotation of a motor to drive a piston in a cylinder, air in the cylinder is injected by a driving force of the piston to fire a bullet, and a trigger turns on an electric switch to drive the motor.

Therefore, while the trigger is kept being pulled, a state where the electric switch is turned on is maintained, and thus, the motor continues to be driven. Therefore, a movement of the piston does not stop, and even in a case where there is no bullet in a magazine, the air in the cylinder continues to be injected, and thus, so-called empty shooting is continued.

Therefore, <CIT> filed by the present applicant discloses a mechanical power supply stopping device in an electric gun. The device is a device for cutting off a circuit of a drive portion for firing a bullet to stop power supply when there is no bullet in a bullet supply path leading to a bullet loading section in a rear section of a gun cavity. The device is configured to include a ball pushing member which is movably disposed in a bullet supply path and is biased to feed the bullet to the bullet loading section, a follower member which engages at an end portion with a portion of the ball pushing member side and is interlocked with a movement of the ball pushing member, a cut-off member which is movable from a position at the time of the power supply to a position at the time of power cut-off according to a movement of the follower member, engages with a tappet member in a process of moving to the position at the time of the power cut-off, and turns off a switch according to a movement of the tappet member, the tappet member which includes a portion which moves rearward according to a movement of a piston of the drive portion to open a bullet supply port of the bullet supply path leading to the bullet loading section and moves the cut-off member by a biasing force in a direction in which the bullet supply port is closed, and the switch which is moved by the engagement with the cut-off member to open a contact and closes the contact by a reset operation.

However, engine portions such as a cylinder, a piston, and a gear for driving the piston in the electric gun are disposed in a predetermined housing and are unitized. The unitized portion is referred to as a mechanical box, and it is necessary to incorporate the above-described devices into the unitized mechanical box.

In addition, in the related art, there is no space in the mechanical box for incorporating the above-described devices. Accordingly, the mechanical box itself should be newly manufactured. Moreover, even when mechanical box is newly manufactured, according to a type of the electric gun, there may not be enough space in the mechanical box to accommodate the above-described devices, and it is not practical to apply the above-described mechanical power supply stopping device to all mechanical boxes.

[PTL <NUM>] Japanese Patent Application Laid-.

The present invention is made in view of the above-described circumstances, and an object thereof is to provide an empty shooting prevention device capable of stopping a rotation of a motor in a case where there is no bullet without changing a mechanical box of the related art.

The invention is as defined in the appended claim. The empty shooting prevention device includes:
a switch which is disposed in series with a contact which is configured to come into contact with the switch to supply power to a motor when a trigger is pulled; and a power supply stop portion which is configured to disconnect the switch to prevent power supply to the motor in response to an operation of a bullet detection device which detects that there is no bullet. Moreover, note that the disconnecting of the switch means to turn off the switch or does not supply power. The same applies hereinafter.

The power supply stop portion includes a detection receiving portion which is configured to receive the operation of the bullet detection device which detects that there is no bullet, a piston interlocking portion which is interlocked with a movement of a piston driven by the motor, and a switch disconnecting portion which is configured to disconnect the connection in series between a contact of an engine portion and the switch, wherein the detection receiving portion engages with the piston interlocking portion, and thus, the piston interlocking portion operates the switch disconnecting portion, and the switch disconnecting portion disconnects the switch.

The contact which comes into contact with the switch to supply power to the motor when the trigger is pulled is provided inside a housing, and both the switch and the power supply stop portion are provided outside the housing. The engine portion is for firing a bullet and is disposed inside the housing.

The present disclosure concerns an electric gun including an empty shooting prevention device as defined in claim <NUM>.

According to the present invention, it is possible to provide an empty shooting prevention device capable of stopping a rotation of a motor in a case where there is no bullet without changing a mechanical box of the related art.

An electric gun <NUM> having an empty shooting prevention device <NUM> in the present embodiment will be described. In the electric gun <NUM>, separately from a first contact <NUM> which comes into contact with a trigger <NUM> described later to supply power when the trigger <NUM> is pulled, a switch <NUM> is provided outside a housing <NUM> in a mechanical box described later, a power supply stop portion <NUM> is disposed to prevent so-called empty shooting when there is no bullet G in a magazine portion <NUM>, and the power supply stop portion <NUM> disconnects the switch <NUM> (refer to <FIG> and <FIG>).

The first contact <NUM> and the switch <NUM> are connected to each other in series by a wire S. When power is supplied to any one of the first contact <NUM> and the switch <NUM>, a bullet G is fired. Moreover, in a case where there is no bullet G, it is possible to prevent the empty shooting by one or both of the power supply stop portion <NUM> stopping power supply to the switch <NUM> and returning the pulled trigger <NUM> (refer to <FIG> and <FIG>).

First, a structure of an engine portion <NUM> for firing the bullet G in the electric gun <NUM> will be described. The engine portion <NUM> is disposed in the housing <NUM>. Moreover, the engine portion <NUM> includes the trigger <NUM>, the first contact <NUM>, a motor <NUM>, a motor gear <NUM>, a bevel gear <NUM>, a gear <NUM>, a sector gear <NUM>, a piston <NUM>, a rack portion <NUM> of the piston <NUM>, and a spring <NUM> which biases the piston <NUM> in a -X direction. Here, the housing <NUM> having the engine portion <NUM> may be referred to the mechanical box.

When a user (not illustrated) pulls the trigger <NUM>, the first contact <NUM> comes into contact with the trigger <NUM> and electricity from the battery <NUM> flows to the motor <NUM>. Therefore, the motor <NUM> rotates. The motor gear <NUM> disposed in an output shaft of the motor <NUM> is rotated by the rotation of the motor <NUM>, the bevel gear <NUM> meshing with the motor gear <NUM> is rotated, the gear <NUM> meshing with the bevel gear <NUM> is rotated, and the sector gear <NUM> meshing with the gear <NUM> is rotated.

When the sector gear <NUM> meshes with the rack portion <NUM> of the piston <NUM>, the piston <NUM> moves in a +X direction. Accordingly, the piston <NUM> compresses the spring <NUM>.

The sector gear <NUM> has a toothless portion which does not partially include gear teeth. Accordingly, when the toothless portion of the sector gear <NUM> rotates to a position facing the rack portion <NUM>, the rack portion <NUM> and the sector gear <NUM> disengage from each other, and a force of the spring <NUM> to return to a natural length of the spring <NUM> causes the piston <NUM> disposed in the cylinder <NUM> to rapidly move in the -X direction. Therefore, the air in the cylinder <NUM> is injected to the bullet G which is disposed in advance at a tip of a nozzle <NUM>, and the bullet G is fired by the air.

Further, the electric gun <NUM> includes a recoil shock generating mechanism <NUM> for generating a so-called recoil shock for simulating an impact generated by a reaction at the time of firing a bullet in an actual gun. Therefore, this will also be described. The recoil shock generating mechanism <NUM> includes a piston engagement portion <NUM> of the piston <NUM> and a recoil weight <NUM> which engages with the piston engagement portion <NUM>. The recoil weight <NUM> is biased in the -X direction by a recoil spring <NUM>. Preferably, the recoil weight <NUM> has a predetermined mass in order to simulate the impact.

As described above, the piston <NUM> disposed in the cylinder <NUM> rapidly moves in the -X direction, and the air in the cylinder <NUM> is injected to the bullet G which is disposed in advance at the tip of the nozzle <NUM>. Accordingly, the bullet G is fired by the air. In this case, the piston engagement portion <NUM> of the piston <NUM> and the recoil weight <NUM> engaging with the piston engagement portion <NUM> rapidly move in the -X direction in the same manner as the piston <NUM> by a force of the compressed recoil spring <NUM> to return to the natural length of the recoil spring <NUM>. Accordingly, the recoil spring <NUM> collides with a tip portion <NUM> to generate an impact, and thus, a so-called recoil shock is obtained.

Thereafter, as the piston <NUM> moves in the +X direction again, the recoil weight <NUM> engaging with the piston engagement portion <NUM> of the piston <NUM> also moves in the +X direction, and compresses the recoil spring <NUM>.

Thereafter, again, in the same manner as described above, the piston <NUM> disposed in the cylinder <NUM> rapidly moves in the -X direction, and the recoil shock is obtained by the force of the compressed recoil spring <NUM> to return to the natural length of the recoil spring <NUM>. Accordingly, when the trigger <NUM> is pulled, the so-called recoil shock is obtained every time the bullet G is fired. Further, a recoil bar <NUM> connected to the recoil weight <NUM> is provided. Moreover, the electric gun <NUM> has the recoil weight <NUM>, the recoil bar <NUM>, and the recoil plate <NUM> which is connected to the recoil bar <NUM>. The recoil weight <NUM>, the recoil bar <NUM>, and the recoil plate <NUM> may be collectively referred to as a piston interlocking portion <NUM>. The piston interlocking portion <NUM> is literally interlocked with the movement of the piston <NUM>, and reciprocates in the -X direction and the +X direction according to the firing of the bullet G.

As described above, in the present embodiment, the empty shooting prevention device <NUM> has the switch <NUM>, which is connected to the first contact <NUM> in series by the wire S and is separated from the first contact <NUM>, outside the housing <NUM> of the mechanical box as described above. Moreover, the bullet detection device <NUM> of the present embodiment detects that the shooting of the bullet G ends and the bullet G in the magazine portion <NUM> runs out, the switch <NUM> is disconnected by a switch disconnecting portion <NUM> of the power supply stop portion <NUM>, and thus, the power supply to the motor <NUM> stops. Moreover, the switch disconnecting portion <NUM> is disconnected by the piston interlocking portion <NUM> which is driven by the movement of the piston <NUM>. Therefore, as described above, even in a state where the trigger <NUM> is pulled and the first contact <NUM> is in contact with the trigger <NUM>, the switch <NUM> which is connected to the first contact <NUM> in series is disconnected. Accordingly, it is possible to prevent the empty shooting.

Accordingly, the bullet detection device <NUM> which detects that the bullet G in the magazine portion <NUM> runs out will be described. The bullet detection device <NUM> is disposed in the magazine portion <NUM>. Therefore, first, a configuration of the magazine portion <NUM> will be described, and thereafter, the bullet detection device <NUM> will be described.

The magazine portion <NUM> has a magazine body portion <NUM> which constitutes an outer shell as a so-called magazine for supplying the bullet G to the electric gun <NUM>. In addition, a bullet disposition portion <NUM> is a passage in which a plurality of the bullets G is disposed and through which the bullet G is fed into the electric gun <NUM>. A width of the bullet disposition portion <NUM> is set to be equal to a width of the bullet G. The bullet disposition portion <NUM> includes a magazine spring <NUM> for pushing up the plurality of bullets G in a direction (+Y direction) of an opening <NUM> and a follower portion <NUM> biased by the magazine spring <NUM>.

Accordingly, the follower portion <NUM> includes a first follower <NUM> which is biased by the magazine spring <NUM>, a second follower <NUM> which is biased by the first follower <NUM>, and a third follower <NUM> which is biased by the second follower <NUM>, and the bullet G is always biased in the direction (+Y direction) of the opening <NUM> as described above. That is, the magazine spring <NUM> presses the first follower <NUM> in the follower portion <NUM>. In addition, any one of the second follower <NUM> and the first follower <NUM> has a shaft portion, the other thereof has a bearing portion, and the shaft portion and the bearing portion are fitted and connected to each other. Therefore, in a case where the bullet disposition portion <NUM> is curved, the second follower <NUM> and the first follower <NUM> are connected to each other in a bendable manner so that the bullet disposition portion <NUM> can follow the curved shape. Moreover, the third follower <NUM> is in contact with the second follower <NUM>, and thus, is pressed by the second follower <NUM>.

In addition, a lower end portion 505a of the magazine spring <NUM> is disposed at an end portion 502a of the bullet disposition portion <NUM>, and a spring upper end portion 505b of the magazine spring <NUM> is connected to the first follower <NUM> of the follower portion <NUM>. Further, a bullet locking portion <NUM> is disposed to prevent the bullet G from jumping out when the magazine portion <NUM> is removed from the electric gun <NUM> (not illustrated) and is biased in the +X direction by a bullet locking spring <NUM>.

That is, when the plurality of bullets G are packed in the magazine portion <NUM> having the above-described configuration, the magazine spring <NUM> is compressed by the plurality of bullets G, and the bullet G disposed at an uppermost position out of the plurality of bullets G is prevented from jumping out by the bullet locking portion <NUM> biased in the +X direction by the bullet locking spring <NUM>. Accordingly, the plurality of bullets G are disposed in the magazine portion <NUM>. In addition, when the magazine portion <NUM> is set to the electric gun <NUM>, the bullet locking portion <NUM> is pressed in the -X direction by a chamber <NUM> (refer to <FIG>), and the bullet locking portion <NUM> is pressed. Accordingly, the engagement between the bullet locking portion <NUM> and the bullet G is released. As a result, the bullet G is loaded into the electric gun <NUM>. Moreover, in <FIG>, <FIG>, and <FIG>, the engagement between the bullet locking portion <NUM> and the bullet G is released.

In the present embodiment, the bullet detection device <NUM> is disposed in the magazine portion <NUM> and includes the detection engagement portion <NUM> which is disposed in the first follower <NUM> of the follower portion <NUM> and a detection rotating portion <NUM> which is rotated in response to rise of the detection engagement portion <NUM>.

The detection rotating portion <NUM> includes a detection engaged portion <NUM>, a detection push portion <NUM> which is disposed at an angle of approximately <NUM>° with respect to the detection engaged portion <NUM>, a detection shaft portion <NUM>, and a first main body portion <NUM> which is disposed between the detection push portion <NUM> and the detection shaft portion <NUM> and is a thin-plate shaped triangular. The detection engaged portion <NUM>, the detection push portion <NUM>, the detection shaft portion <NUM>, and the first main body portion <NUM> are integrated with each other, and constitute the detection rotating portion <NUM>. In addition, the detection rotating portion <NUM> rotates so as to oscillate about the detection shaft portion <NUM> (refer to <FIG>).

When all the bullets G disposed in the magazine portion <NUM> have been shot, there is no bullet G disposed in the magazine portion <NUM>, and a length of the magazine spring <NUM> is returned to a natural length sufficiently longer than a length of the bullet disposition portion <NUM>. Accordingly, the first follower <NUM> of the follower portion <NUM> is pushed up in the direction of the opening <NUM>.

At the same time, the first follower <NUM> connected to the spring upper end portion 505b of the magazine spring <NUM> rises, the detection engagement portion <NUM> disposed in the first follower <NUM> rotates the detection engaged portion <NUM> of the detection rotating portion <NUM> counterclockwise and rotates the detection push portion <NUM> integrated with the detection engaged portion <NUM> counterclockwise. Accordingly, the detection push portion <NUM> protrudes to jump out from an inside of the magazine portion <NUM>. When all the bullets G disposed in the magazine portion <NUM> are shot out in this way, the detection push portion <NUM> protrudes from the inside of the magazine portion <NUM>, and thus, it is detected that there is no bullet G (refer to <FIG>). In this case, an upper end portion 513a of the third follower <NUM> protrudes from the opening <NUM>. In the present embodiment, a position at which the detection push portion <NUM> protrudes so as to jump out from the inside of the magazine portion <NUM> is a position (in the -X direction) opposite to the housing <NUM> in the mechanical box with respect to the bullet disposition portion <NUM> (refer to <FIG>). That is, the position of the housing <NUM> in the mechanical box is located in a direction (the +X direction) of the trigger <NUM> with respect to the bullet disposition portion <NUM>. Meanwhile, the detection push portion <NUM> of the bullet detection device <NUM> detects the presence or absence of a bullet in order to disconnect the switch <NUM> disposed outside the housing <NUM>. Accordingly, the detection push portion <NUM> is disposed at a position (in the -X direction) opposite to the position of the trigger <NUM> with respect to the bullet disposition portion <NUM>.

In addition, there is provided an empty shooting prevention function stopping device <NUM> in order to stop a function of the bullet detection device <NUM>. Accordingly, a second detection shaft portion <NUM> which is disposed in the detection engaged portion <NUM> of the detection rotating portion <NUM> and a function stop engagement portion <NUM> of the empty shooting prevention function stopping device <NUM> engage with each other, and the detection push portion <NUM> of the detection rotating portion <NUM> substantially stays in the magazine portion <NUM> without protruding too much outside the magazine portion <NUM>. As a result, the function of the empty shooting prevention device <NUM> described later can be stopped, and so-called empty shooting can be performed even in a state where there is no bullet G in the bullet disposition portion <NUM> and the bullet disposition portion <NUM> is empty. This is particularly suitable for a user who wants to experience only the recoil shock because an operation check of the electric gun having the recoil shock can be performed in a state where the magazine portion <NUM> is not filled with the bullets G, which contributes safety.

That is, the empty shooting prevention function stopping device <NUM> slides in the -X direction from the state of <FIG>. <FIG> and <FIG> illustrate a state where the empty shooting prevention function stopping device <NUM> slides in the -X direction. In this state, the position engagement portion <NUM> of the empty shooting prevention function stopping device <NUM> disengages from a first groove portion <NUM> of the magazine portion <NUM> and engages with a second groove portion <NUM>. In this case, the function stop engagement portion <NUM> of the empty shooting prevention function stopping device <NUM> engages with the second detection shaft portion <NUM> disposed in the detection engaged portion <NUM> of the detection rotating portion <NUM>. As described above, the detection rotating portion <NUM> is pushed down clockwise on an XY plane in <FIG> by the empty shooting prevention function stopping device <NUM>, and the detection push portion <NUM> integrated with the detection engaged portion <NUM> stays in the magazine body portion <NUM> without protruding too much outside the magazine body portion <NUM>.

In this state, in a case where the bullet G is hit and the bullet G in the bullet disposition portion <NUM> runs out, as described above, the follower portion <NUM> rises and the detection engagement portion <NUM> disposed in the first follower <NUM> of the follower portion <NUM> engages with the detection engaged portion <NUM> of the detection rotating portion <NUM>. However, the rotation (counterclockwise rotation in <FIG>) of the detection rotating portion <NUM> is prevented by the empty shooting prevention function stopping device <NUM>, and the detection push portion <NUM> of the detection rotating portion <NUM> substantially stays in the magazine body portion <NUM> of the magazine portion <NUM> without protruding too much outside the magazine portion <NUM>. In this case, the upper end portion 513a of the third follower <NUM> does not protrude from the opening <NUM>, and the upper end portion 513a stays in the opening <NUM>.

In addition, the empty shooting prevention function stopping device <NUM> slides in the +X direction from the states of <FIG> and <FIG>. When the empty shooting prevention function stopping device <NUM> slides in the +X direction, the position engagement portion <NUM> of the empty shooting prevention function stopping device <NUM> disengages from the second groove portion <NUM> of the magazine portion <NUM> and engages with the first groove portion <NUM>. In this case, the function stop engagement portion <NUM> of the empty shooting prevention function stopping device <NUM> disengages from the second detection shaft portion <NUM> disposed on the detection engaged portion <NUM> of the detection rotating portion <NUM>. As described above, the empty shooting prevention function stopping device <NUM> moves, and thus, the function stop engagement portion <NUM> of the empty shooting prevention function stopping device <NUM> is disposed so as to engage with or disengage from the detection engaged portion <NUM> of the detection rotating portion <NUM>. In addition, the empty shooting prevention function stopping device <NUM> has a groove portion <NUM>. Accordingly, since the position engagement portion <NUM> is elastically deformable so as to be restorable, the position engagement portion <NUM> is suitable for engaging with the first groove portion <NUM> and the second groove portion <NUM>, or disengaging therefrom. (refer to <FIG>, <FIG>, and <FIG>).

Moreover, in <FIG>, the second detection shaft portion <NUM> is configured to protrude toward a front of the drawing, and when the position engagement portion <NUM> of the empty shooting prevention function stopping device <NUM> engages with the first groove portion <NUM> of the magazine portion <NUM>, the second detection shaft portion <NUM> does not stop the function of the bullet detection device <NUM>, and when the position engagement portion <NUM> engages with the second groove portion <NUM>, the second detection shaft portion <NUM> stops the function of the bullet detection device <NUM> (refer to <FIG>, <FIG>, and <FIG>).

Next, the empty shooting prevention device <NUM> in the electric gun <NUM> will be described. As described above, in the empty shooting prevention device <NUM>, the switch <NUM> is provided outside the housing <NUM>, and in order to prevent the so-called empty shooting when there is no bullet G in the magazine portion <NUM>, the power supply stop portion <NUM> described later disconnects the contact with the switch <NUM>. Therefore, the power supply stop portion <NUM> is operated in response to the protrusion of the detection push portion <NUM> to disconnect (does not supply power) the contact with the switch <NUM>.

The power supply stop portion <NUM> includes a detection receiving portion <NUM> for receiving the protrusion operation of the detection push portion <NUM> from the magazine portion <NUM>, the piston interlocking portion <NUM> which is interlocked with the movement of the piston <NUM>, and the switch disconnecting portion <NUM> for separating the contact of the switch <NUM> (refer to <FIG>). The detection receiving portion <NUM> has a first detection receiving portion <NUM> and a second detection receiving portion <NUM>, and receives a movement operation of the detection push portion <NUM> in the -X direction. The first detection receiving portion <NUM> receives the movement of the detection push portion <NUM> in the -X direction and moves in the -X direction (refer to <FIG>, <FIG>, and <FIG>).

The second detection receiving portion <NUM> is rotatably supported by a shaft portion <NUM>. The protruding portion 212a of the second detection receiving portion <NUM> is further pressed by a tip portion 211a of the first detection receiving portion <NUM> pressed by a tip portion 312a of the detection push portion <NUM>. According to <FIG> and <FIG> which are bottom views, the second detection receiving portion <NUM> rotates clockwise on an XZ plane. Accordingly, the other end portion 212b of the second detection receiving portion <NUM> also rotates clockwise on the XZ plane, and thus, the other end portion 212b protrudes in the trajectory of the recoil plate <NUM> which reciprocates from the -X direction to the +X direction. That is, the piston <NUM> reciprocates from the -X direction in the +X direction, and thus, the recoil plate <NUM> in the piston interlocking portion <NUM> which is interlocked with the reciprocation of the piston <NUM> also reciprocates from the -X direction in the +X direction. Moreover, as described above, the other end portion 212b protrudes in the trajectory along which the other end portion <NUM> reciprocates. That is, in <FIG> and <FIG>, the second detection receiving portion <NUM> is pressed by the first detection receiving portion <NUM>, and thus, the second detection receiving portion <NUM> is in a state where the other end portion 212b is located upward in the drawing, that is, the other end portion 212b stands uprightly, and the other end portion 212b protrudes in the trajectory along the recoil plate <NUM> reciprocates(-X direction and +X direction).

<FIG> is an enlarged side view of a state where a muzzle of the electric gun <NUM> faces right in the states of <FIG> and <FIG>. This state is a state where a stop plate <NUM> of the switch disconnecting portion <NUM> described below does not engage with a switch lever <NUM>.

In this state, the piston <NUM> still reciprocates. Accordingly, the other end portion 212b of the second detection receiving portion <NUM> standing uprightly in <FIG> and <FIG> engages with the recoil plate <NUM> of the piston interlocking portion <NUM> in <FIG> and <FIG> thereafter. As described above, the recoil plate <NUM> reciprocates from the -X direction to the +X direction. Accordingly, the second detection receiving portion <NUM> engages with the recoil plate <NUM> and the other end portion 212b of the second detection receiving portion <NUM> is operated so as to rotate clockwise on the XZ plane. That is, the motor <NUM> rotates and the piston <NUM> continuously reciprocates since the power supply is not disconnected yet. However, the other end portion 212b of the second detection receiving portion <NUM> is further rotated clockwise on the XZ plane by the piston interlocking portion <NUM> which follows the reciprocation of the piston <NUM>. Moreover, the spring <NUM> biases the second detection receiving portion <NUM> counterclockwise (refer to <FIG> and <FIG>).

Accordingly, one end portion 212c of the second detection receiving portion <NUM> also rotates clockwise on the XZ plane. Further, the one end portion 212c of the second detection receiving portion <NUM> of the detection receiving portion <NUM> rotated clockwise engages with the switch disconnecting portion <NUM> to operate the switch disconnecting portion <NUM>. Further, according to the operation of the switch disconnecting portion <NUM>, the switch disconnecting portion <NUM> disconnects the contact of the switch <NUM>, that is, disconnects the switch <NUM> (refer to <FIG>, <FIG>, <FIG>, and <FIG>).

To further describe this, first, the switch disconnecting portion <NUM> has a latch <NUM>, the stop plate <NUM>, and a switch lever <NUM>. Moreover, a latch spring <NUM> biases the latch <NUM> clockwise. According to the configuration, the one end portion 212c of the second detection receiving portion <NUM> engages with the latch <NUM> of the switch disconnecting portion <NUM>, and the one end portion 212c rotates the latch <NUM> counterclockwise against a clockwise biasing force of the latch spring <NUM>. (refer to <FIG>, <FIG>, <FIG>, <FIG>, and <FIG>).

The latch <NUM> has a latch convex portion 271a, and the stop plate <NUM> engaging with the latch convex portion 271a is biased in the -X direction by a stop plate spring <NUM>. Therefore, the latch <NUM> is rotated counterclockwise, and the stop plate <NUM> disengaged from the latch convex portion 271a of the latch <NUM> moves in the -X direction. <FIG> is a side view illustrating a state where the muzzle of the electric gun <NUM> faces right in the states of <FIG> and <FIG>. By comparing <FIG> with <FIG>, it can be understood that the stop plate <NUM> moves in the -X direction.

The stop plate <NUM> moves in the -X direction. Accordingly, the switch lever one end portion <NUM> of the switch lever <NUM> is pushed down, and the switch lever other end portion <NUM> is pulled up in the +Y direction about the switch lever shaft portion <NUM>. In this case, a convex portion <NUM> attached to the switch lever shaft portion <NUM> rotates to lift a first contact portion 201a of the switch <NUM> and disconnects a contact with a second contact portion 201b of the switch <NUM>. Accordingly, power supply of the motor <NUM> is prevented, and it is possible to prevent the empty shooting (refer to <FIG>). That is, the detection receiving portion <NUM> operates the switch disconnecting portion <NUM>, and the switch disconnecting portion <NUM> disconnects the switch <NUM>. In addition, the switch lever <NUM> includes the switch lever one end portion <NUM> and the switch lever other end portion <NUM>, and has a substantially isosceles triangular shape in which an apex angle therebetween is an obtuse angle. In addition, the switch lever spring 290a biases the switch lever <NUM> counterclockwise in <FIG>. Thereby, in a state where the bullet G is disposed in the magazine portion <NUM> or in a case where the empty shooting prevention function stopping device <NUM> is operated, the first contact portion 201a of the switch <NUM> is pushed down, and the contact with the second contact portion 201b of the switch <NUM> is ensured.

As described above, in the related art, it is necessary to use a mechanical box having a mechanical power supply stopping device for a dedicated electric gun. However, the empty shooting prevention device can be installed as an independent device from a so-called mechanical box, and thus, this device is installed in a portion where there is a space regardless of an external shape of the electric gun. Accordingly, it is possible to use the existing mechanical box. Therefore, even if the user keeps pulling the trigger <NUM> in a state where there is no bullet G in the magazine after the shooting of the bullet G ends, an effect of preventing so-called empty shooting can be achieved. Moreover, in the case of an electric gun having no magazine portion, an effect of preventing the empty shooting can be obtained by having the same configuration as that of the bullet detection device in the main body of the electric gun.

Moreover, in this state, the first contact portion 201a of the switch <NUM> is lifted by the above-described effects of the stop plate <NUM> and the switch lever <NUM>, and the contact with the second contact portion 201b of the switch <NUM> is disconnected (refer to <FIG>). Therefore, in order to cause the first contact portion 201a and the second contact portion 201b of the switch <NUM> to come into contact with each other again, a bolt portion <NUM> is pulled in the +X direction. If a user (not illustrated) pulls the bolt portion <NUM>, the bolt portion <NUM> engages with the stop plate <NUM> according to a certain stroke. The stop plate <NUM> engaging with the bolt portion <NUM> is biased in the -X direction by the stop plate spring <NUM>. Accordingly, the bolt portion <NUM> is pulled in the +X direction against this biasing force (refer to <FIG>).

Claim 1:
An electric gun (<NUM>) comprising:
a housing (<NUM>);
an engine portion (<NUM>) which is disposed in the housing (<NUM>) and is for firing a bullet;
an empty shooting prevention device (<NUM>); and
a bullet detection device (<NUM>),
wherein the engine portion (<NUM>) includes:
a trigger (<NUM>);
a first contact (<NUM>);
a motor (<NUM>); and
a piston (<NUM>),
wherein the empty shooting prevention device (<NUM>) includes:
a switch (<NUM>) which is disposed in series with the first contact (<NUM>), wherein the first contact (<NUM>) is configured to allow a current to pass when the trigger (<NUM>) is pulled, in order to supply power to the motor (<NUM>); and
a power supply stop portion (<NUM>) which is configured to disconnect the switch (<NUM>) to prevent a power supply to the motor (<NUM>) in response to an operation of the bullet detection device (<NUM>) which detects that there is no bullet (G),
wherein the power supply stop portion (<NUM>) includes
a detection receiving portion (<NUM>) which is configured to receive the operation of the bullet detection device (<NUM>) which is configured to detect that there is no bullet (G),
a piston interlocking portion (<NUM>) which is interlocked with a movement of the piston (<NUM>) driven by the motor (<NUM>), and
a switch disconnecting portion (<NUM>) which is disconnected by the piston interlocking portion (<NUM>) driven by the movement of the piston (<NUM>),
wherein through the detection receiving portion (<NUM>) engaging with the piston interlocking portion (<NUM>), the piston interlocking portion (<NUM>) operates the switch disconnecting portion (<NUM>), and the switch disconnecting portion (<NUM>) disconnects the switch (<NUM>),
wherein the electric gun (<NUM>) is characterized in that
both the switch (<NUM>) and the power supply stop portion (<NUM>) are provided outside the housing (<NUM>).