JP2877782B2 - Bullet launcher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball shooting device for a game machine such as a pachinko machine.

[0002]

2. Description of the Related Art As a motor-driven ball launching device such as a pachinko machine, a winding spring 3 is wound around a drum 2 coaxial with a ball hammer 1 as shown in FIGS. There is a type in which the ball hammer 1 is driven by force. A cam roller (not shown), which is well known, is provided on the ball hammer 1.
Is fixed, and by engaging a cam 5 rotated by a motor 4 with this cam roller, the ball hammer 1 is rotated against the winding spring 3, and when the cam roller comes off from the cam 5, the winding spring 3 The ball is moved by force.

[0003] The tip of the winding spring 3 is fixed to a first ratchet plate 6 coaxial with the ball-hammer 1, and the base end is fixed to a spring strength adjusting disk 7. A wire 9 is connected between the spring strength adjusting disc 7 and a drum 8 of a handle operated by a player, and the player operates the handle to rotate the spring strength adjusting disc 7 to form a winding spring. 3 can be adjusted.

The second ratchet plate 11 and the first ratchet plate 6 integrally fixed to the shaft 10 of the ball hammer 1 are always engaged by the force of the spring 12, but the strength of the ball at the pachinko parlor side. If it is desired to adjust the first ratchet plate 6 against the spring 12 by pushing the strength adjustment knob 13
Is separated from the second ratchet plate 11 so that the meshing angle between them can be changed.

However, in such a conventional ball shooting device, if the winding spring 3 is too strong at the pachinko parlor side, a load is applied to the winding spring 3 so that smooth rotation is not possible and uneven ball flying may occur. there were. Also, the load of the winding spring 3 acts on the handle 7 via the wire 8 or the like,
In some cases, it was not possible to concentrate on the game because the player's hands were stressed.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and to provide a bullet shooting device capable of adjusting the flight distance of a game ball without changing the strength of a coil spring. It was done in.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a ball launching apparatus including a winding spring arranged coaxially with a ball hammer, and a cam rotated by a motor. A ball launching device that engages with a cam roller of a ball hammer to perform ball motion, characterized in that the ball force can be adjusted by changing the angle of the cam roller with respect to the ball hammer. It is.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below. 1 and 2, reference numeral 20 denotes a substrate;
Is a drum fixed to the substrate 20, and 22 is a drum 21
Is a hollow shaft rotatably mounted at the center by a bearing 19. The bullet hammer 23 is fixed to the hollow shaft 22 with a key 24. A second ratchet plate 25 is provided integrally with the other end of the hollow shaft 22.

A shaft 26 is slidably provided inside the hollow shaft 22 and has a strength adjusting knob 2 at one end thereof.
7 is integrally fixed, and a first ratchet plate 28 meshing with the second ratchet plate 25 is integrally fixed to the other end. The second ratchet plate 25 and the first ratchet plate 28 are connected to a spring 29 on the back surface of the strength adjusting knob 27.
It is adhered by the power of.

An arm 31 provided with a cam roller 30 is integrally attached to the first ratchet plate 28. The cam roller 30 is located on the rotation trajectory of the cam 33 for the ball of the motor 32 attached to the substrate 20. Therefore, when the cam 33 rotates, the cam roller 30 is pressed to rotate the first ratchet plate 28, and the second ratchet plate 25 meshing with the first ratchet plate 28 also rotates.

A winding spring 34 is provided on the outer periphery of the drum 21. One end of the winding spring 34 is attached to the second ratchet plate 25, and the other end is fixed to a spring strength adjusting disk 35. This spring strength adjusting disk 3
The handle 5 is connected to a handle operated by the player by a wire or the like (not shown) in the same manner as in the prior art.
4 can be adjusted.

Next, the operation of the apparatus of the present invention will be described. As shown in FIG. 1, a cam 33 for a ball of the motor 32 is provided.
Is rotated clockwise in the figure, the cam roller 30 of the first ratchet plate 28 located on the rotation locus is pressed. As a result, the second ratchet plate 25 and the hollow shaft 22 rotate counterclockwise, so that the ball hammer 23 fixed to the hollow shaft 22 is rotated from the solid line stop position to the imaginary line position. At this time, one end of the second ratchet plate 25
The elastic energy is accumulated in the winding spring 34 fixed to the ball spring 23, and at the moment when the cam roller 30 is disengaged from the ball cam 33, the ball hammer 23 rapidly returns to the position indicated by the solid line, and performs the same ball-ball operation as before. Do. As described above, the player can rotate the spring strength adjusting disk 35 by operating the handle to adjust the strength of the winding spring 34, so that the player can play a game while adjusting the strength of the ball.

On the other hand, when it is desired to adjust the strength of the ball at the time of product shipment or at the pachinko parlor after installation, the strength adjusting knob 27 is pushed in against the spring 29 to slide the shaft 26. As shown in FIG. 3, the first ratchet plate 28 fixed to the shaft 26 is separated from the second ratchet plate 25, and the first ratchet plate 28 is rotated. As a result, the cam rollers 3 of the first ratchet plate 28
0 and a ball hammer 2 that rotates integrally with the second ratchet plate 25
The angle relative to 3 changes.

That is, when the angle between the ball hammer 23 and the cam roller 30 is increased as shown in FIG.
The amount of cam roller 30 penetrating into the rotation locus of
Since the ball hammer 23 is largely driven, the elastic energy stored in the winding spring 34 also increases, and the flight distance of the game ball increases. Conversely, when the angle between the ball hammer 23 and the cam roller 30 is reduced as shown in FIG. 5, the amount of the cam roller 30 penetrating into the rotation trajectory of the cam 33 is reduced, and the driving angle of the ball hammer 23 becomes X -Α, the flying distance of the game ball decreases.

As described above, in the present invention, by changing the angle of the cam roller with respect to the ball hammer, it is possible to freely adjust the ball force at the time of product shipment or at the pachinko parlor after the shop is installed. In addition, since no extra load is applied to the winding spring at that time, there is an advantage that a stable ball jump can be obtained.

[Brief description of the drawings]

FIG. 1 is a front view of a bullet shooting device of the present invention.

FIG. 2 is a partially cutaway plan view of the ball shooting device of the present invention.

FIG. 3 is a partially cutaway plan view showing a state in which the ratchet plate is out of engagement.

FIG. 4 is a front view of a state in which bullet strength is increased.

FIG. 5 is a front view of a state in which the ball strength is reduced.

FIG. 6 is a perspective view showing a conventional example.

FIG. 7 is a partially cutaway plan view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 Conventional ball hammer 2 Drum 3 Winding spring 4 Motor 5 Cam 6 First ratchet plate 7 Spring strength adjusting disk 8 Drum of handle 9 Wire 10 Ball hammer shaft 11 Second ratchet plate 12 Spring 13 Strength adjustment Knob 19 Bearing 20 Substrate 21 Drum 22 Hollow shaft 23 Ball hammer 24 Key 25 Second ratchet plate 26 Shaft 27 Strength adjustment knob 28 First ratchet plate 29 Spring 30 Cam roller 31 Arm 32 Motor 33 Bullet cam 34 winding Spring 35 Disk for adjusting spring strength

Claims (1)

(57) [Claims] 1. A ball launching device comprising a winding spring coaxially arranged with a ball hammer, wherein a cam rotated by a motor is engaged with a cam roller of the ball hammer to perform ball motion. A ball shooting device characterized in that the ball force can be adjusted by changing the angle of a cam roller with respect to a ball hammer.