JP2005114260A - Trigger device in compression pump type toy gun - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To discharge a bullet by lighter operation even if a toy gun is a toy gun using a strong spring or the like. <P>SOLUTION: This compression pump type toy gun has a piston cylinder mechanism, and a shear member retaining a piston that is in a cocking state and releasing the retaining by pulling operation of a trigger. An intermediate member 25 is provided in a gun body 11 such that the intermediate member 25 is positioned in a different position by the pulling operation of the trigger 33, and the shear member 23 is installed to the intermediate member 25. In a state that the trigger 33 is not pulled, the intermediate member 25 is supported in a certain position, and the shear member 23 retains the piston 15. When pulling the trigger 33, the retaining by the shear member 23 is released according as moving the intermediate member 25 to another position by leverage. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a trigger device for a compression pump type toy gun having a piston cylinder mechanism, and having a shear member that releases a latch by latching a piston in a cocking state and pulling the trigger.

  In a compression pump type toy gun, when the compression force of the spring that pushes the piston is strong, when the latching member called the shear that latches the piston is released by the trigger operation, the trigger operation also has a strong force. It was necessary. In particular, a bolt action type gun uses a powerful spring, so a strong trigger operation force is required, and it tends to be difficult to handle.

  When the trigger is pulled with the aim set, the piston will operate more smoothly when it is pulled lightly. The heavier the trigger, the more likely it will affect the accuracy of the hit. To reduce the pulling force of the trigger, it is only necessary to modify the contact shape and pressure of the latching part of the member connecting the trigger and the piston, but if the latching amount cannot be secured sufficiently However, even if a slight impact is transmitted, the trigger falls and there is a problem that it is easy to fall out.

JP-A-8-145599

  The present invention has been made paying attention to the above points, and the problem is that even if it is a toy gun using a powerful spring or the like called a bolt action type, a bullet can be fired with a lighter operation. The point is to make it possible. Another object of the present invention is to prevent the launch operation when launching is not desired and to obtain high safety.

In order to solve the above-mentioned problems, the present invention provides a compression pump toy gun having a piston cylinder mechanism, latching a piston in a cocking state, and having a shear member that releases the latch by an operation of pulling a trigger. An intermediate member is provided in the gun body so that it takes different positions depending on the operation of pulling the trigger, and a shear member is attached to the intermediate member, and when the trigger is not pulled, the intermediate member is supported at a certain position, Is used to suspend the piston, while when the trigger is pulled, the intermediate member is moved to another position by lever action, so that the latch by the shear member is released. .

  The toy gun of the present invention takes a form in which a piston cylinder mechanism is used as a compression pump for obtaining compressed air, and the piston is disposed in a retracted position by a cocking operation, and is latched at that position by a shear member. When the latch is released, the piston moves forward by the urging force and injects compressed air. Accordingly, the nozzle that ejects air by the advance of the piston is provided in the piston cylinder mechanism, and the bullet can be fired by the compressed air ejected from the nozzle.

  The shear member is a member that latches the piston against its urging force, and is also a member that releases the latch. The shearing member must be positioned before the piston latching position for latching the piston, and the latched part must be passed forward for release. It is desirable to be able to move in and out so that it can protrude into the moving part when it stops moving and immerse outside the moving part when passing through the piston.

  In the present invention, an intermediate member is provided between the shear member that directly receives an urging force such as a compression spring that drives the piston and the trigger, so that the strong urging force received by the shear member is not directly applied to the trigger. doing. The shearing member moves in the crossing direction with respect to the moving direction of the piston, and the intermediate member also moves in the crossing direction with respect to the moving direction of the piston. It is a desirable configuration to arrange a shear member at the center and a trigger at the power point.

  Such an intermediate member has a form that extends in the front-rear direction of the gun body under a general form in which the trigger is disposed at the lower part of the gun body, and has either a front or rear end in the front-rear direction of the gun body. As a fulcrum, it is possible to take an arrangement in which it is pivotally supported to move downward and biased upward by a spring means or the like. In this case, it is desirable to provide the intermediate member with an engaging portion that can be engaged with the trigger, and to provide a concave portion that allows the upper portion to enter and allow the intermediate member to move downward by pulling the trigger.

  Since the present invention is configured and operates as described above, particularly in a toy gun of a type using a powerful spring called a bolt action type, even when the piston is biased with a strong acting force, Since the shear member is attached to the intermediate member, and the intermediate member is operated by a trigger, the effect of being able to fire a bullet with a light operation by the lever action of the intermediate member is achieved. Since a sufficient amount of both the stopper and the engagement between the intermediate member and the trigger can be applied, there is no fear that the stopper or the engagement is released due to an impact or the like, and high safety can be obtained.

  Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1 shows a cross section of a main part of a compression pump type toy gun 10 according to the present invention, wherein 11 is a gun body, 12 is a barrel part, 13 is a piston cylinder mechanism provided behind the cylinder 14 and its cylinder 14 And a piston 15 slidable inside. The piston 15 is biased forward by the acting force of a strong compression spring 17 provided between the gun 15 and the stopper 16 on the gun body side. Reference numeral 18 denotes a spring guide, and 19 denotes a handle, which is provided so as to protrude laterally from the cylinder rear end 20. Reference numeral 21 denotes a nozzle at the tip of the cylinder.

  The piston 15 has a latching portion 22 inclined toward the front, and a shearing member 23 is latched on the latching portion 22. The illustrated shear member 23 is rotatably supported on the intermediate member 25 by a support shaft 24. The intermediate member 25 is rotatably supported on the gun body 11 by a fulcrum shaft 26. In the illustrated intermediate member 25, the fulcrum shaft 26 is disposed at the front end portion, the engaging portion 31 with the trigger 33 described later is disposed at the rear end portion, and the shear member 23 is disposed at the intermediate portion thereof. Can be obtained in accordance with the ratio of the length between the engagement portion 31 and the fulcrum shaft 26 and the length between the shear member 23 and the fulcrum shaft 26 as the action point. Such a force can be easily set by calculation.

  In addition, the shear member 23 is provided with a spring 27 that acts in the direction of engagement with the latching portion 22, but the shear member 23 is in contact with the rear portion of the piston at a portion inclined backward, so that the piston 15 moves backward. It rotates downward in the movement line and immerses toward the slit 28 formed in the cylinder 14 for the shear member 23. The intermediate member 25 is provided with a spring 30 that acts in a direction in which the intermediate member 25 is pressed against the defining surface 29 of the gun body 11. The intermediate member 25 is further provided with an engaging portion 31 and a recessed portion 32 that can engage with the upper portion 34 of the trigger 33 at the rear portion. Since the engagement portion 31 is inclined in the direction in which the tip is lowered, and the upper portion 34 of the trigger 33 is also inclined in the same direction, the engagement pressure in the disengagement process does not change, and it is easy to grasp the timing when the trigger 33 falls, It is also difficult to explode. Reference numeral 35 denotes a trigger return spring, and 36 denotes a support shaft. When the finger is released from the trigger 33, the upper part 34 is hooked to the engaging part side by the concave part 32, but is returned to the original position (state of FIG. 1) by the return spring 35.

  The barrel portion 12 is provided with an inner barrel 37 having a gun cavity, and the rear end portion of the barrel is a fitting port 38 into which the nozzle at the tip of the cylinder is fitted. A bullet supply system 39 is connected to the fitting port 38 so that a spherical bullet 40 called a BB bullet or the like can be loaded into the loading portion one shot each time the nozzle is retracted. The bullet 40 supplied from the bullet supply system 39 has a configuration that is pushed out from the fitting port 38 to the bullet loading portion at the nozzle tip portion. In the figure, reference numeral 41 denotes a cylinder slide anti-friction ring, and 42 denotes a piston ring.

  The operation of the compression pump type toy gun 10 of the present invention having such a configuration will be described. FIG. 1 shows a state where the piston cylinder mechanism 13 is in a non-cocking state and a single bullet 40 is loaded in the bullet loading portion. In FIG. 2, the piston 15 is being retracted by the operation of the handle 19 (therefore, the handle 19 is on the left side of FIG. 2 and is not shown). Depressed to indicate a state of passing. When the piston 15 retracted by the operation of pulling the handle 19 passes through the shear member 23 (FIG. 3), the piston 15 can be latched by the latch member 22 at the latching portion 22.

  The cylinder 14 of the piston cylinder mechanism 13 placed in the cocking state is returned to the front (FIG. 4), and at the same time, the bullet 40 supplied to the fitting port 38 during the cocking operation is loaded into the loading unit. When the trigger 33 is pulled from this state, the upper portion 34 of the trigger 33 is disengaged from the engaging portion 31 (FIG. 5) and tries to enter the recess 32. When the trigger upper portion 34 moves to the recess 32, the intermediate member 25 can be separated from the defining surface 29. In the state of FIG. 5, the force is exerted by the powerful compression spring 17 acting on the piston 15. The inclined contact surface between the certain shear member 23 and the latching portion 22 is displaced, and the shear member 23 is defeated and pushed down, and the piston 15 moves forward at once. It is the state of FIG. The forward movement of the piston 15 generates compressed air, which causes a single bullet 40 in the loading part to be fired.

  In actual bolt action guns and toy air guns that have a structure similar to that of bolt action guns, after firing a single bullet, the trigger remains pulled and triggers back to its original position because Shea gets in the way. Can not return. However, according to the present invention, the shear member 23 is freed by the advance of the piston, and the intermediate member 35 comes into contact with the specified surface 29, so that the trigger 33 can be immediately returned to the original position by the urging force of the return spring 35. Therefore, the trouble of setting the trigger becomes unnecessary.

The fragmentary sectional view which shows one example of embodiment of the trigger apparatus in the compression pump type toy gun of this invention. Sectional drawing of the state in the cocking which is moving the piston of a piston cylinder apparatus backward. Sectional drawing just before performing latching by a shear member during cocking. Sectional drawing of the state in which the piston was latched by the shear member. Sectional drawing of the state by which a trigger is pulled and engagement with an upper part and an engaging part is going to remove | deviate. Sectional drawing which shows the state which the upper part of a trigger entered into the recessed part of the intermediate member, the shear member removed from the latching part of the piston, and the piston started the movement.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Compression pump type toy gun 11 Gun body 13 Piston cylinder mechanism 14 Cylinder 15 Piston 17 Compression spring 19 Handle 22 Latch part 23 Shear member 25 Intermediate member 27, 30 Spring 31 Engagement part 32 Recess 33 Trigger 34 Upper part of trigger 35 Trigger Return spring 40 bullet

Claims (5)

In a compression pump type toy gun having a piston cylinder mechanism, having a shear member that releases a latch by latching a piston in a cocking state and pulling a trigger,
An intermediate member is provided in the gun body so that it takes different positions depending on the operation of pulling the trigger, and a shear member is attached to the intermediate member, and when the trigger is not pulled, the intermediate member is supported at a certain position, Compressing the piston, On the other hand, when the trigger is pulled, the intermediate member is moved to another position by lever action, and the latch by the shear member is removed. Trigger device for toy guns. The trigger device for a compression pump type toy gun according to claim 1, wherein the shearing member projects into the moving part when stopping the movement of the piston, and immerses into the outside of the moving part when passing through the piston. The trigger device for a compression pump type toy gun according to claim 2, wherein the shear member is pivotally supported by the intermediate member and is spring-biased in a direction to latch the piston. The shear member moves in the cross direction with respect to the moving direction of the piston, and the intermediate member also moves in the cross direction with respect to the moving direction of the piston. 2. The trigger device for a compression pump type toy gun according to claim 1, wherein a member is disposed and a trigger is disposed at a power point. The intermediate member is disposed in the front-rear direction of the gun body, is pivotally supported so as to be movable downward with any one of the front and rear ends as a fulcrum, and is biased upward, so that the intermediate member can be engaged with the trigger. 5. The trigger device for a compression pump type toy gun according to claim 4, further comprising: a joint portion; and a groove portion that allows the lower portion of the intermediate member to move downward by an operation of pulling the trigger.

Images