JP2010025501A - Mechanical energization interrupting device in electric gun - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To mechanically interrupt energization by blocking a circuit of a driving part for firing a bullet when the bullet is run out. <P>SOLUTION: An energization interrupting device includes a bullet-pushing member 22 arranged in a bullet supply route 13 and energized for feeding the bullet B to a loading part 20, a follower member 40 engaged with the bullet-pushing member side at its one end part to interlock the member, a cut-off member 50 engaged with a tappet member 35 in a process of displacement from an energization position to a blocked position according to movements of the follower member to turn a switch 57 OFF according to the movements of the tappet member, the tappet member having a tip part which retreats and opens a bullet supply port 21 according to the movements of a piston of the driving part and operating the cut-off member by energization force to a direction of closing the bullet supply port, and the switch which moves to open a contact point by engagement with the cut-off member and closes the contact points by reset operation. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an apparatus for mechanically stopping energization by shutting off a circuit of a drive unit that fires a bullet when a bullet no longer exists in a bullet feed path leading to a bullet unit at the rear of a gun cavity. .

  An electric gun that has a built-in piston cylinder device driven by a motor, triggers the piston cylinder device by trigger operation, and injects compressed air from the nozzle at the rear end of the gun cavity, and fires a bullet placed there Is known and has a merit different from that of a gun filled with compressed gas, and has been accepted by enthusiasts and is on the market. This type of electric gun is also called an electric gun, and there are various types ranging from those similar to toys for young people to those used for training as substitutes for real firearms. The configuration does not greatly deviate from the configuration disclosed in JP-A-3-221793 or JP-A-6-235597.

  In the case of an electric gun or an electric gun having this basic configuration, the piston cylinder device continues to operate while the trigger is being pulled, so that the operation does not stop even after the bullet has been exhausted. In an electric gun whose battery is the power source, the fact that operation continues even if there are no bullets is a wasteful consumption of electric power, which also shortens the useful life for the gun, and in survival games etc. It can also lead to a situation where the projectile is unaware that the bullet is not fired. On the other hand, the magazine “Monthly Arms Magazine” in the early 1990s introduced a device that detects the presence or absence of bullets in the gun body by electrical control and stops the operation, and then seems to have followed that method. Guns can now be found on the market. A device that detects the presence or absence of a bullet by electrical control and stops its operation means that it consumes electric power, which is the power of the electric gun, other than firing, and is not very preferable.

  However, in order to detect the presence or absence of bullets in the electric gun body and mechanically stop the operation rather than electrically, it is necessary to instantaneously cut a large current of 20 to 30 A. A method of using a switch or the like to electrically amplify and cut the switch has been taken. However, this method is costly. The switch mounted on the electric gun is high-strength in terms of impact resistance, and requires a fairly strong force to turn off the switch. It is also a question of what power is required for that purpose, and no device for mechanically switching has been proposed so far. For example, even if an electromagnet is used, power consumption cannot be avoided, and it is not preferable for the electric gun as in the case of the electric control described above.

Japanese Patent Laid-Open No. 3-221793 JP-A-6-235597 53 pages of the magazine "Monthly Arms Magazine" November 1993 issue

  The present invention has been made paying attention to the above points, and the problem is that the circuit is interrupted for the purpose of stopping energization when the bullet is shot out, and for that reason it can be almost ignored as an electric gun. An object of the present invention is to provide a deenergizing device with a mechanical mechanism in an electric gun that consumes only electric power. Another object of the present invention is to provide an energization stop device using a mechanical mechanism that can be easily applied to various electric guns.

In order to solve the above-mentioned problem, the present invention is a device for shutting off energization by shutting off the circuit of the drive unit for firing the bullet when there is no bullet in the bullet feed path leading to the bullet unit at the rear of the gun cavity. A chamfering member that is movably arranged in the bullet feed path and urged to send a bullet to the loading unit, and a follower member that engages at one end and a part of the chamfering member side and interlocks with the movement. In accordance with the movement of the follower member, it can move from the energized position to the shut-off position and engages with the tappet member in the process of moving to the shut-off position, and the switch is turned off as the tappet member moves. The cut-off member has a cut-off member and a biasing force in a direction to close the bullet feed port, having a part that opens the bullet feed port of the bullet feed path that retreats with the movement of the piston of the drive unit and leads to the bullet loading unit Move the above And Tsu DOO member opens the contacts to move by the engagement of the cut-off member, in which took measures that configured with the above switch closing the contacts by the reset operation (claim 1).

  In the above configuration, the follower member is a means for detecting and transmitting the position of the follower member that is moved by engagement with a part of the claw member. The apparatus of the present invention can be applied to an electric gun having a magazine portion incorporated in an electric gun main body or an electric gun having a removable magazine or magazine.

  When the apparatus of the present invention is applied to an electric gun equipped with a detachable magazine, the bullet feed path is provided as a part of a magazine that is detachably attached to the electric gun body, and the magazine faces the bullet feed path. A follower comprising a first link having an end portion that is disposed and engages with a part on the side of the claw member, and a second link having an end portion that is linked to the first link and that is disposed on the side surface of the magazine on the opposite side. It can comprise and comprise a member (Claim 2). For this reason, even if the interval between the bullet feed path and the switch is narrow or separated, it can be mechanically transmitted to the switch side by the link. On the contrary, when the apparatus of the present invention is applied to one having a magazine portion incorporated in the electric gun body, a link member that traverses the magazine is used as a follower member that is interlocked with the movement of the claw member. Can be omitted.

  The present invention is capable of moving from the energized position to the shut-off position along with the movement of the follower member, and engages with the tappet member in the process of moving to the shut-off position. A cutoff member for turning off is provided. This cut-off member mechanically relates the switch side to the power source for turning off the switch, and uses the biasing force of the tappet member as the power source to play the role of operating the cut-off member. The tappet member is provided so as to reciprocate once during one stroke of the piston cylinder device in order to send one bullet from the bullet feed path to the bullet loading unit.

  The tappet member retracts with the movement of the piston of the drive unit and opens the bullet feed port of the bullet feed path leading to the loading unit. As for the direction of closing, it moves by the urging force of the elastic member and returns to the original position, so that power is not consumed. Thus, since the tappet member is biased in the direction of closing the bullet feed port in order to temporarily open the bullet feed port and immediately close it again, this biasing force can be used as power for turning off the switch. . This urging force is independent of the urging force applied to the piston involved in bullet firing, and is sufficient as power for switching off, and it does not use motor power, so in one operation. Power consumption is almost negligible.

  The above switch can be moved by engagement with a cut-off member to open a contact, and can be closed by a reset operation. That is, the switch is mechanically and forcibly turned off by the energy received by the cut-off member by engagement with the tappet member, that is, the biasing force in the direction of closing the bullet hole. In addition, a reset operation is performed to close the opened contact again.

  The cut-off member is movable from the energized position to the shut-off position along with the movement of the follower member, and interlocks with the front member and the front member engaged with the tappet member at the shut-off position. It is possible to adopt a configuration comprising a rear member that turns off the switch in accordance with the movement to the position (Claim 3). This arrangement has the advantage that it is purely mechanical, can be switched off reliably and does not directly contribute to power consumption.

  Since the present invention is configured and operates as described above, the power consumption of the electric gun can be neglected as much as the power consumption of the electric gun by obtaining the power to switch off the urging force of the tappet member. It is possible to provide an energization stop device using a mechanical mechanism in an electric gun that is not consumed. Further, according to the present invention, it is possible to provide an energization stop device with a mechanical mechanism that can be easily applied to, for example, an electric gun that does not use a removable magazine or an electric gun that uses a removable magazine. .

  Hereinafter, the present invention will be described in more detail with reference to the illustrated embodiments. FIG. 1 shows an example of an electric gun equipped with a mechanical energization stop device 10 according to the present invention. The illustrated electric gun includes an externally mounted magazine 12 that can be attached to and detached from the electric gun main body 11, and a bullet feed path 13 is provided inside the magazine 12 (see FIG. 2). The electric gun body 11 has a barrel portion 15 having a gun cavity 14 inside, an electric gun engine portion 16 at a rear portion thereof, and a stock base portion 17 at a rear portion thereof, and a trigger 18 at a lower portion of the engine portion 16. Is arranged. In addition, although 19 is a component called a bolt stop, in this invention, it is used as a reset member for the reset operation mentioned later. B is a bullet. In this embodiment, a spherical bullet having a diameter of 6 mm, commonly called a BB bullet, is used.

  As shown in detail in FIG. 2, the bullet feed path 13 leads to a bullet feed opening 21 immediately after the bullet loading section 20 at the rear of the gun cavity, and the bullet feed path 13 leading to the bullet feed opening 21 has a bullet loading section. A ball pushing member 22 biased to send a bullet to 20 is movably disposed. The ball pushing member 22 receives the urging force of the urging member 24 formed of a coil spring at one end, and pushes the bullet B toward the bullet opening 21 at the other end. 13 has a length that extends completely to the outside, and has a spherical head 23 that is substantially the same type as the bullet B at its tip.

  On the other hand, a passage 25 is connected to the rear of the bullet loading portion 20 at the rear portion of the gun cavity 14, and a tip portion 35a of a tappet member 35 described later is slidably inserted into the passage 25. The nozzle 28 of the piston cylinder device 30 is slidably inserted into the rear end of 35a. The passage 25 is a portion where the bullet feed port 21 is formed, and therefore the bullet feed port 21 is opened and closed by the tip portion 35 a of the tappet member 35.

  The piston cylinder device 30 includes a fixed-side cylinder 26 attached to the electric gun body 11 and a movable-side piston 27, and the above-described nozzle 28 is provided at the tip of the cylinder 26. Air can be injected forward. The piston 27 is slidably provided inside the cylinder so as to be slidable, and is urged by an urging means 29 comprising a strong coil spring from the rear to the front. The piston 27 has a rack 31 along the longitudinal direction. The rack 31 is arranged so as to be able to mesh with a sector gear 32 driven by a motor. The sector gear 32 has a gear portion 33 that can mesh with the rack 31 and retract the piston 27 by a necessary stroke around the sector gear 32, and a toothless portion 34 for releasing the restraint of the piston 27 and performing a compression operation. It has.

  The sector gear 32 has a pin 37 around the axis that can be engaged with the rear engaging portion 36 of the tappet member 35 at a timing when the bullet hole 21 is temporarily opened after the meshing with the gear portion 33 is started. Yes. The tappet member 31 is provided so that it can be returned to its original position by being moved by the biasing force of the biasing member 38 made of a coil spring in the direction of closing the bullet feed opening 21. Further, the tappet member 35 has an engaging portion 36a bent at the front portion. The engaging portion 36a engages with the rising portion 35a of the tappet member sliding portion, and the tappet member 35 is moved forward. It functions as positioning means for defining the movement limit position. The tappet member 35 includes an engaging means 39 with a cut-off member 50 described later in order to serve as a part of the mechanical energization stop device according to the present invention. The engaging means 39 is a rear edge of the opening window 39 a opened in the tappet member 35.

  As a component of the mechanical energization stop device 10 according to the present invention, the follower member 40 that engages with the above-described claw member 22 at one end and interlocks with the movement thereof is disposed on the side of the bullet feed path 13. Has been. In the case of this example, the bullet feed path 13 is provided in the removable magazine, so that the follower member 40 is also attached to the magazine 12. The follower member 40 is disposed so as to face the bullet feed path 13, and is interlocked by the engagement of the first link 42 having the one end portion 41 that engages with a part 22 a of the ball pushing member 22 and the first link 42. , And a second link 44 having the other end 43 disposed on the side of the magazine opposite to the magazine. The first link 42 is provided so as to enter the slit 45 whose one end 41 is opened on the side surface of the bullet feeding path 13, and the second link 44 is exposed to the opening portion 46 on the other side surface of the magazine. Both the first link 42 and the first link 42 are pivotally supported by the mounting portion so as to be swingable. Reference numeral 47 denotes an urging member made of a push spring. The urging member 22 holds the ball pushing member 22 at one end 41 of the first link 42 and urges the other end 43 of the second link 44 against the receiving portion 46. To do.

  As shown in detail in FIGS. 3 and 4, the one end portion 41 of the first link 42 does not engage with the bullet B and the spherical head portion 23 of the ball pushing member 22. Therefore, in order to prevent the tip bullet B from coming off, a stopper 48 that protrudes into the bullet feed path 13 and can be engaged is disposed under the biasing force of a biasing member 49 made of a push spring (see FIG. 3). Note that the spherical head 23 of the claw member 22 moves through the stopper 48 until a part 22a on the claw member 22 side is engaged with the one end 41, and is completely out of the bullet feed path 13. (See FIG. 3).

  Further, as a component of the mechanical energization stop device 10 according to the present invention, a cut-off member 50 is provided in order to turn off the switch 56 by borrowing the moving force by the biasing member 38 as the tappet member 35 moves. ing. The cut-off member 50 in the example of FIG. 5 can move from the position “a” when energized to the position “b” when the follower member 40 moves along the movement of the second link 44, and the tappet member at the position “b” when shut off. 35, a front member 51 that engages with the front member 51, and a rear member 52 that turns off a switch 57, which will be described later, in association with the movement to the position b when the front member 51 is shut off. The front member 51 is pivotally supported by a shaft 53 connecting the front member 51 and the rear member 52 with a long hole 54 formed slightly longer in the moving direction, and the other end 43 of the second link 44. Is biased by a biasing member 55 made of a pulling spring in a direction of pushing down or in a direction away from the engaging means 39 of the tappet member 35. The front member 51 has an engagement protrusion 56 bent upward and rearward for engagement with the engagement means 39 of the tappet member 35 located at the upper rear part. It is located under the tappet member 35 at the position a when energized (see FIG. 5), and can be engaged with the engaging means 39 by receiving a push-up force in the process of reciprocating the tappet member 35 backward (see FIG. 5). 6 and FIG. 7).

  As shown in detail in FIGS. 2A and 2C, the switch 57 includes a pair of switch terminals 58 and a switch piece 59 for cutting them, and is provided on the rear member 52 of the cut-off member 50. By pushing and moving the switch piece 59 with the projecting portion 60, the switch 57 in the conductive state is cut off (see FIGS. 5 to 7). The switch piece 59 is provided so as to be movable with respect to the switch terminal 58 and is urged by the urging member 61 in a direction in which the switch 57 is disconnected.

  The aforementioned reset member 19 is provided for a reset operation for returning the front member 51 of the cut-off member 50 to the original position. The reset member 19 is provided on the electric gun main body 11 so as to be swingable by the support shaft 62 and biased by a biasing member 63 made of a spring in the original position direction. It is comprised so that engagement with the engagement edge part 65 provided in the member 51 is possible (refer FIG. 2B). That is, the reset member 19 is moved away from the original position by the upward movement of the front member 51 of the cutoff member 50, and is in the open state shown in FIG. 2B. The electric gun according to the present invention uses a battery as a power source and a motor disposed on the grip 66 as a power source, and the switch 57 is turned on by the engagement of the engaging portion 67 of the trigger 18 and the engaging portion 68 of the switch 57. The motor rotates and the sector gear 32 is driven via the reduction gear 69, and during the one rotation, all operations related to bullet firing are performed as described below.

  Next, the operation of the mechanical energization stop device 10 according to the present invention having such a configuration will be described. FIG. 8 shows a state where the magazine 12 loaded with the bullet B is mounted on the electric gun main body 11 and the preparation for firing is completed, and only one bullet (final bullet) B remains in the bullet feed path 13. . When the trigger 18 is pulled in this state, the switch piece 59 is pushed to contact the switch terminal 58, the switch 57 is turned on, and the circuit is energized (FIG. 9). As the sector gear 32 rotates, the gear portion 33 meshes with the rack 31 of the piston 27, the piston 27 starts to move backward, and then the side pin 37 engages with the rear engaging portion 36, so that the tappet member 35 moves backward. At this time, the bullet hole 21 is opened for a while, so that the final bullet B passes through the bullet hole 21 and is pushed out into the passage 25 behind the bullet loading unit (FIG. 10).

Since the last bullet B is pushed out into the passage 25, the ball pushing member 22 is raised to the uppermost position, and the first link 42 engaged with the part 22a and the one end 41 swings, and the second link 44 is swung. And the front member 51 of the cut-off member 50 is pushed up. With this push-up, the final bullet B is being loaded, and it is transmitted to the cut-off member 50 that the magazine 12 has no bullet B. When the front member 51 of the cut-off member 50 is pushed up by the second link 44, the opening window 39a of the tappet member 35 is moved to the cut-off member as the tappet member 35 is moved back and forth. Since the upper part of the engaging protrusion 56 provided on the front member 51 of 50 passes, the engaging protrusion 56 enters the opening window 39a and further engages with the engagement means 39 on the rear edge ( FIG. 11). Further, after the piston 27 has moved back to the limit position and before starting to move forward, the tappet member 35 moves forward and returns to the original position, and with the forward movement, the final bullet B is loaded by the tip portion 35a. The bullet B is loaded into the loading unit 20.

  When the engagement protrusion 56 is engaged with the engagement means 39 at the stage of FIG. 11, the cutoff member 50 is operated by the urging force acting on the tappet member 35, so that the switch terminal 58 and the switch piece 59 are After separation, the switch 57 is turned off and the motor is stopped. On the other hand, the piston 27 moves forward by receiving the elastic force of the biasing member 29 from the retreat limit position, and generates compressed air, which is ejected from the nozzle 28 to the bullet B, thereby firing the bullet B from the muzzle. (FIG. 12). Even when the bullet B is fired, the front member 51 of the cut-off member 50 remains engaged with the engagement means 39 at the engagement protrusion 56. Therefore, the reset member 19 is operated counterclockwise in FIG. 2B, and the above-mentioned front member 51 is pushed down to return to the original position (the energization side position, see FIG. 5), thereby enabling the firing. The magazine 12 and the removed bullet B are packed and remounted in the electric gun body 11 so that the bullet can be fired again. In the gun, since the reset operation is performed after the magazine replacement, the reset member 19 can be operated after the magazine replacement in the electric gun of the present invention as well as the actual gun.

  As described above, the present invention mechanically detects the presence or absence of the bullet B in the electric gun body by the follower member 40, and also uses the urging force of the tappet member 35 as power to turn off the switch 57 to electrically operate. It can be stopped mechanically. Of course, the above-described configuration and operation can be applied to an electric gun body that does not have a magazine and therefore does not use a link member that crosses the magazine.

An example of the electric gun carrying the mechanical energization stop device concerning the present invention is shown, A is a left side view and B is a right side view. The main part of the same apparatus is shown. A is a longitudinal sectional view, B is a transverse sectional view, and C is a horizontal sectional explanatory view of a switch. It is explanatory drawing at the time of the bullet remaining of the part regarding the follower member of an apparatus same as the above. It is explanatory drawing which shows the state in which no bullet remains similarly. It is explanatory drawing which shows the electricity supply state of the part regarding the cutoff member of an apparatus same as the above. It is explanatory drawing which similarly shows the transfer state to the interruption | blocking state. It is explanatory drawing of the interruption | blocking state similarly. It is related with the action | operation of the mechanical energization stop apparatus which concerns on this invention, and is explanatory drawing which shows before an action start. It is explanatory drawing which shows the state which pulled the trigger and switched on. It is explanatory drawing which shows the state which the piston and the tappet member started to retract. It is explanatory drawing of the state which finished loading the bullet and the engagement protrusion of the cutoff member has entered into the opening window of the tappet member. It is explanatory drawing of the state by which the engagement protrusion of a cut-off member engages with the engagement means of a tappet member, and the bullet is discharged. It is explanatory drawing which shows reset operation.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Mechanical energization stop device 11 Electric gun main body 12 Magazine 13 Bullet feeding path 14 Gun cavity 15 Barrel part 16 Engine part 17 Stock bed part 18 Trigger 19 Reset member 20 Loading part 21 Bullet opening 22 Ball pushing member 23 Spherical head 24, 29, 38, 49, 53, 61, 63 Biasing member
25 passage 26 cylinder 27 piston 28 nozzle 30 piston cylinder device 31 rack 32 sector gear 33 gear part 34 toothless part 35 tapet member 36 rear engagement part 37 pin 39 engagement means 40 follower member 41 one end part 42 first Link 43 Other end portion 44 Second link 45 Slit 46 Receiving portion 48 Stopper 50 Cut-off member 51 Front member 52 Rear member 54 Shaft 55 Long hole 56 Engagement projection 57 Switch 58 Switch terminal 59 Switch piece 60 Projection 62 Support shaft 64, 65 engagement end 66 grip 66
67, 68 Engagement part 69 Reduction gear

Claims (3)

When there is no bullet in the bullet feed path leading to the bullet part at the rear of the gun cavity, the device for shutting off the energization by interrupting the circuit of the drive unit that fires the bullet,
A tapping member that is movably disposed in the bullet feed path and biased to send a bullet to the loading section;
A follower member that engages with a part of the claw member and one end and interlocks with the movement,
A cut that can move from the energized position to the shut-off position with the movement of the follower member, and engages with the tappet member in the process of moving to the shut-off position, and turns off the switch as the tappet member moves. An off member;
The cut-off member is operated by a biasing force in a direction to close the bullet feed port, having a tip portion that opens the bullet feed port of the bullet feed path that retreats with the movement of the piston of the drive unit and leads to the bullet loading unit. Tappet members of
A mechanical energization stop device for an electric gun comprising the above switch that moves by engagement with a cut-off member to open a contact and closes the contact by a reset operation. The bullet feed path is provided as a part of a magazine that is detachably attached to the electric gun body, and the magazine has one end portion that faces the bullet feed path and that engages with a bullet or a ball pushing member. 2. A machine in an electric gun according to claim 1, further comprising a follower member comprising a first link having a second link having a second link disposed on a side surface of the magazine opposite to the first link. Type energization stop device. The cut-off member is movable from the energized position to the shut-off position along with the movement of the follower member, and interlocks with the front member and the front member engaged with the tappet member at the shut-off position. 2. The mechanical energization stop device for an electric gun according to claim 1, comprising a rear member that turns off the switch in accordance with the movement to the position.

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