JPH0223998Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a firing spring compression device with a safety device for a pneumatic toy gun.

The purpose of this invention was to make it possible to compress the firing spring smoothly with a light operating force, and to enable safe operation.

Hereinafter, this invention will be explained with reference to drawings which are examples. 1 is a front half part 1a connected by a support shaft 2.
The front end of the front half 1a has a pump cylinder 4 inside, and a shaft is attached to the front end upper surface of a free bottom support frame 5 which is attached to the gun main body 3 so as to be slidable back and forth. The opposite rear end is pivoted 7 to the rear upper surface of the gun main body 3. A tension spring 8 is stretched between the rear of the attachment part of the support shaft 6 and the lower surface of the rear half part 1b of the bending/extending link lever 1, and the bending/extending link lever 1 is bent and erected in a chevron shape by its tensile action.
Slide the bolt support frame 5 backward. Further, when the apex of the upright bending/extending link lever 1 is pressed down, the tension spring 8 is expanded, the support shafts 6 and 7 are separated, and the bolt support frame 5 is slid forward.

9 is a locking claw, which is attached to the rear half 1 of the bending/extending link lever 1.
An intermediate link is integrally formed on the lower surface of b, and when the bolt support frame 5 moves forward, it is inserted into the cavity 10 inside the rear opening 10a of the bolt support frame 5, and is installed in the cavity. It engages with the upper end engaging part 11a of the metal 11, and the lower end connecting part 11b of the intermediate link 11.
The bolt support metal 12 installed in the gun main body 3 rotates downward under the pressing force received from the locking pawl 9 to release the engagement with the locking pawl 9.
0 to connect and support the intermediate link 11. The bolt bearing 12 is supported on the same support shaft 14 as the piston locking metal 13 and is related to the piston locking metal, and the piston locking metal 13 is related to the trigger 15 by a connecting rod 16. Furthermore, 1
Reference numeral 7 designates an actuation auxiliary spring, 18a a spring for pushing up the bolt bearing 12, 18b a spring for pushing up the piston latch 13, 19 a firing spring, and 20 a piston hook.

Since this idea is as described above,
To load a bullet and press the firing spring forward, as shown in Fig. 1, when the upright bending/extension link lever 1 is pressed down from above, the rear end of the rear half 1b extends horizontally from the base end, and the front half of the Advance the front end of 1a,
The bolt support frame 5 is advanced. Then, the bolt support frame 5 moves forward together with the pump cylinder 4, and the piston latch claw 20 pushes the abutting portion of the bolt support metal 12 out of the rotation path and abuts against the piston locking metal 13. Therefore, the piston 21 integrated with the piston latch 20 is prevented from moving forward, and the piston 21 supports the front end side of the firing spring 19. Since the bolt support frame 5 supporting the rear end side of the firing spring 19 moves forward, the firing spring 19 is compressed by the width of its forward movement. When the bending/extending link lever 1 becomes horizontal, the hollow part 1 at the rear of the bolt support frame 5
0, the locking pawl 9 attached to the lower surface of the rear half 1b is inserted from the opening 10a, and the inner intermediate tether 11
is the bolt bearing 12 inserted from the bottom opening 10b.
Since the upper end engaging portion 11a engages with the locking pawl 9, the upper end engaging portion 11a engages with the locking pawl 9.

Therefore, as shown in FIG. 2, the bolt support frame 5 holds the firing spring 19 in the compressed position.

Although not shown, when the bolt support frame 5 moves forward, one bullet is loaded from the magazine into the chamber, and the pump tube 4
The tip of the bullet is connected to the bullet's cartridge.

Next, when the trigger 15 is operated, the piston latch 13 rotates via the link 16, and is first disengaged from the piston hook 20. Therefore, piston 2
1 is actuated by the repulsive force of the firing spring 19, and the pump cylinder 4
Instantly blows out the air inside and fires the bullet inside the cartridge.

Next, the piston latch 13 comes into contact with the bolt bearing 12, so the bolt bearing 12 descends downward, and the intermediate locking metal 11 receives the pressing force of the auxiliary spring 17.
Since it rotates downward around the shaft support 11c, the upper end engaging portion 11a escapes from the locking pawl 9 and releases the engagement. Therefore, in the second stage, the bending/extending link lever 1 is released, bends and stands up under the action of the tension spring 8, and moves the bolt support frame 5 rearward. Ejection is performed by moving the bolt support frame backward, completing a series of firing operations.

This idea is as described above, so compared to the conventional direct operation of pressing the rear end of the bolt, the apex of the bending/extending link lever is pressed down and the length between the ends is extended, and the lever principle This makes it easier to operate. In particular, the final compression operation in which the bolt support frame is engaged with the locking pawl to lock the firing spring in the compressed state can be lightened, and the firing preparation operation can therefore be carried out easily.

Also, the relationship between the locking pawl on the bending link lever and the support metal that interlocks with the trigger on the gun body is as follows:
At the rear of the bolt, it is necessary to specifically provide a cavity for arranging the intermediate shackles, to connect thereto a bearing which is disposed there and is interlocked with the piston latching associated with the trigger, so that at the same time the safety device can be installed. Therefore, the related mechanism can be adjusted to a certain extent,
Dimensional differences caused by various causes can be adjusted locally for smooth operation.

In addition, the pullback operation of the breech support frame is performed smoothly by the tension spring of the bending/extending link lever, so that extremely light shooting games can be enjoyed safely.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention,
Fig. 1 is a side view showing the main part in a cutaway section, Fig. 2 is a side view showing the same operating state, Fig. 3 is a perspective view of the main part, and Fig. 4 shows the bolt bearing and piston locking metal. FIG. 3 is an exploded perspective view from the corresponding surface side. 1...bending link lever, 1a...first half, 1
b...Late half, 2...Spindle, 3...Gun main body, 4...
... Pump cylinder, 5 ... Bottom support frame, 6 ... Support shaft, 7 ...
...Spindle, 8...Tension spring, 9...Latching claw, 10...
...Middle link arrangement cavity, 10a, 10b...
Opening, 11... Intermediate link, 11a... Upper end engaging portion, 11b... Lower end connecting portion, 11c... Shaft support, 12... Bolt support, 13... Piston locking metal, 14... Support shaft , 15... Trigger, 16... Link, 17... Auxiliary spring, 18a, 18b... Push-up spring, 19... Firing spring, 20... Piston hook, 21... Piston.

Claims (1)

[Scope of utility model registration request] A bolt support frame equipped with a pump cylinder inside the gun main body is installed so as to be able to slide forward and backward by the required width, and a bending link lever consisting of a front half and a rear half is pivoted at the middle, and its front end is attached to the bolt. It is pivoted to the upper surface of the front end of the support frame, the rear end is pivoted to the upper rear edge of the gun body, and a tension spring is stretched between the upper surface of the front part of the bolt support frame and the lower surface of the rear half of the bending link lever. , bending link lever,
With the rear end shaft attachment part at the base end, the bending/extending link lever is bent into a chevron shape, and the free support frame is provided so as to be able to slide rearward, and the bending/extending link lever is extended horizontally by applying a pressing force to the top to move forward. In a pneumatic toy gun, the firing spring installed inside the bolt support frame is compressible.In the rear of the bolt support frame, there is provided a hollow part for arranging an intermediate tether, and the front end of the bolt support frame has an intermediate tether whose front end rotates up and down. The link is pivotally supported, and the upper end engagement portion formed at the upper front end of the link is configured to be able to engage with the engagement pawl provided on the lower surface of the rear half of the bending/extension link lever when the lever is horizontally extended. The extension part of the bolt support, which is operated in conjunction with the trigger installed on the gun body, is connected to the lower end connecting part formed at the lower part of the front end of the tether, and the intermediate tether is separated only when the trigger is operated. A firing spring compression device with a safety device in a pneumatic toy gun that releases the metal bearing and releases the bending link lever.