JPS5831586Y2 - Pachinko game machine game ball launcher - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a game ball firing device for a pachinko game machine in which a ball firing lever is driven by a motor.

In a game ball firing device for a pachinko game machine, the rotational force of a motor that rotates at a constant speed, such as a synchronous motor, is transmitted to a game ball firing lever via a power transmission device to drive it. Then, a predetermined number of game balls are fired every minute.

□By the way, as is well known, the rotational speed of a synchronous motor etc. changes depending on its power frequency. Therefore, for example, if a pachinko game machine manufactured for a power frequency area of 60 is used in a power frequency area of 50 or less, If used in , the rotation speed of the motor will decrease and the number of game balls fired will decrease.

For this reason, in the past, the motor was provided so that it could be driven via an electric circuit such as a frequency conversion circuit (or a voltage conversion circuit depending on the type of motor), and the rotational speed of the motor was selectively changed in two stages. , or by selectively attaching another part, such as a shaft, to the power transmission device in the middle to selectively change its gear ratio in two stages, The number of game balls fired was kept constant.

However, the configuration for changing the rotational speed of the motor described above has disadvantages in that the electric circuit is expensive and its power consumption is relatively large, and the motor may not be able to be operated at the most efficient rotational speed. □Disadvantages, etc. □The configuration in which the gear ratio of the power transmission device is changed has the drawbacks that its mechanical structure becomes complicated and the operation of attaching separate parts to the power transmission device becomes troublesome.

'The present invention was made to eliminate the above-mentioned drawbacks, and its purpose is to transmit the rotational force of the motor to the output shaft for driving the ball firing lever with a two-stage gear ratio with a simple configuration and operation. To provide a game ball ejecting device for a pachinko game machine which can be manufactured at a low cost and has effects such as not causing an increase in power consumption and a decrease in motor efficiency.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

Reference numeral 1 denotes a synchronous motor, for example, which is provided so that its rotation direction can be switched between forward and reverse by changing its polarity, and its periodic speed is, for example, 60H.
The z input is set to 60r and pom.

Reference numeral 2 denotes a first drive gear serving as a first power transmission body having a recess 2a for storing a clutch, and this is loosely inserted into the rotating shaft 3 of the motor 1, and as shown in FIGS. 2 and 3. In the recess 2a, a drive clutch 4 fixedly attached to the rotating shaft 3 and a cylindrical roller 6 connected to the drive clutch 4 via a spring 5 are arranged to constitute a one-way clutch mechanism of a well-known configuration. Only when the motor 1 is rotated in the forward direction, that is, in the direction of arrow A in the figure, the rotational force is transmitted and the motor rotates in the direction of arrow A.

Further, 7 is a second drive gear serving as a second power transmission body having a recess 7a for storing a clutch, and this is loosely inserted into the rotating shaft 3 and is inserted into the recess 7a as shown in FIG. ,
A drive clutch 8 is fixedly attached to the rotating shaft 3, and a cylindrical roller 10 is connected to the drive clutch 8 via a spring 9.
are arranged to constitute a one-way clutch mechanism of a well-known configuration, and only when the motor 1 is rotated in the reverse direction, that is, in the direction of arrow B in the figure, its rotational force is transmitted and rotates in the direction of arrow B.

Reference numeral 11 denotes an intermediate gear serving as a reversing mechanism connected to one of the first and second drive gears 2 and 7, for example, the first drive gear 2, and the rotation direction of the drive gear 2 is indicated by the arrow A. This is for reversing from the direction to the direction of arrow B.

Reference numeral 12 denotes a driven gear connected to both the second driving gear 7 and the intermediate gear 11, and an output shaft 13 is provided at the rotation center of the driven gear so as to be able to rotate together with the driven gear.

The gear ratio between the first drive gear 2 and the driven gear 12 and the gear ratio between the second drive gear 7 and the driven gear 12 are set to, for example, 6:10 and 5:IO, respectively.

That is, the ratio of the number of teeth between the first drive gear 2 and the second drive gear 7 is set to 5:6, so that the rotation transmission path via the first drive gear 2 and the rotation transmission path via the second drive gear 7 are set to 5:6. The rotation transmission ratio of the rotation transmission path is 5:6.

Reference numeral 14 designates a ball firing lever having a ball striking part 14b at its tip via a spring 14a, whose base end is rotatably supported by a shaft 15 and is rotated by a spring 16. It is constantly biased in the direction of arrow C shown in the figure.

A contact 14C protruding from the middle of the ball firing lever 14 is brought into contact with a cam 17 attached to one end of the output shaft 13, and the lever 14 In response to the rotation in the direction indicated by the arrow, the contact 14C is rotated in the direction opposite to the direction indicated by the arrow C, and when the contactor 14C later faces the stepped portion 17a of the cam 17, the spring force of the spring 16 causes the contact 14C to suddenly rotate in the direction indicated by the arrow C. The ball is rotated back and the game ball is struck by the ball striking portion 14b.

By repeating such operations, the game balls on the complementary side are continuously ejected onto the board of a pachinko game machine (not shown).

When the apparatus having the above configuration is used in an area where the power supply frequency is 60 Hz, the motor 1 is rotated in the forward direction, that is, in the direction of arrow A.

As a result, the motor 1 is rotated at 60 revolutions per minute, and its rotational force is transmitted only to the first drive gear 2, and the gear 2 is rotated as shown by the arrow
direction at 60 revolutions per minute.

Then, based on the fact that the gear ratio between the first driving gear 2 and the driven gear 12 is 6:10, the driven gear 12, the output shaft 13, and the cam 17 are rotated in the direction of the arrow shown in the figure via the intermediate gear 11. The ball firing lever 14 continuously fires 100 game balls per minute.

On the other hand, when used in an area where the power supply frequency is 50°, the motor 1 is rotated at 50 revolutions per minute, but in this case, if the motor 1 is rotated in the opposite direction, that is, in the opposite direction of arrow A,
The rotational force is transmitted only to the second drive gear 7, and the gear 7 is rotated 50 times per minute in the direction of arrow B.

Then, based on the fact that the gear ratio between the second driving gear 7 and the driven gear 12 is 5:10, the driven gear 12, output shaft 13, and cam 17 are rotated at 100 revolutions per minute in the direction of the arrow in the figure. A ball firing lever 14 continuously fires 100 game balls per minute.

According to this embodiment configured in this way, the number of game balls fired can be made constant by an extremely simple operation of switching the rotation direction of the motor 1 between forward and reverse depending on the power frequency, which is convenient for use. Moreover, it does not require a conventional electric circuit, can be manufactured at low cost, and there is no risk of increased power consumption, and the motor 1 can be operated at the most efficient rotation speed.

In addition, although the above effects can be achieved, the mechanical structure is not complicated, and the practicality is extremely high.

In the above embodiment, if the motor 1 is rotated in reverse at a power frequency of 60 Hz, the output shaft 13 will rotate at 120 revolutions per minute, and if the motor 1 is rotated forward at a power frequency of 50 Hz, the output shaft 13 will rotate at 120 revolutions per minute. It rotates approximately 83 times per minute, and can therefore be used for a variety of purposes, such as being able to vary the number of game balls fired in two stages by rotating the motor 1 in forward and reverse directions in the same frequency range.

FIGS. 5 to 8 show other embodiments of the present invention, and hereinafter only the differences from the previous embodiments will be explained.

That is, reference numeral 18 denotes a support frame formed by integrating plate bodies 19, 20, 21 arranged in parallel with side plates 22, 22, through which the rotation shaft 3 of the motor 1 is provided. , a drive gear 23 is fixed to the tip of the rotating shaft 3.

Reference numeral 24 denotes a rotating shaft rotatably supported between the plates 19 and 20, and a driven gear 25 meshed with the driving gear 23 is loosely inserted into a portion of this rotating shaft located between the plates 19 and 20. At the same time, a drive gear 26 is fixed to the tip located between the plates 20 and 21.

Reference numeral 27 denotes a cylindrical engagement portion (sixth cylindrical engagement portion) integrally provided on the plate body 19 side of the driven gear 25 so as to surround the rotating shaft 24.
and FIG. 7), and its entire tip surface 27a is formed in a spiral shape and has a stepped portion 27b.

A compression coil spring 28 is stretched between the driven gear 25 and the plate body 20, and its spring force causes the engagement portion 27 to
The distal end surface 27 a of the rotary shaft 24 is biased so as to come into contact with a pin 29 implanted in the rotating shaft 24 .

And the above-mentioned rotating shaft 24. Driven gear 25. Drive gear 2
A first gear mechanism 30 serving as a first power transmission body with 6 etc.
The motor 1 rotates in the forward direction, that is, as indicated by the arrow A.
When the driven gear 25 is rotated in the direction indicated by the arrow B
The pin 2 is rotated in the direction from the stepped portion 27b of the engaging portion 27.
9, the entire first gear mechanism 30 is rotated in the direction of arrow B.

On the other hand, when the motor 1 is rotated in the opposite direction, that is, in the direction opposite to the arrow A, the driven gear 25 is rotated in the direction opposite to the arrow B, and no rotational force is transmitted from the stepped portion 27b to the pin 29. The gear mechanism 30 rotates idly.

A rotating shaft 31 is rotatably supported between the plates 19 and 20, and a driven gear 32 meshed with the driving gear 23 is loosely inserted into a portion of this rotating shaft located between the plates 19 and 20. At the same time, a drive gear 33 is fixed to the tip located between the plates 20 and 21.

Reference numeral 34 denotes a cylindrical retaining part (eighth
(see figure), and its entire tip surface 34a is formed in a spiral shape and has a stepped portion 34b.

A compression coil spring 35 is stretched between the driven gear 32 and the plate body 20, and its spring force causes the retaining portion 34 to
The distal end surface 34a of the rotary shaft 31 is biased so as to come into contact with a pin 36 implanted in the rotating shaft 31.

And the above-mentioned rotating shaft 31. Driven gear 32. Drive gear 3
A second gear mechanism 37 serving as a second power transmission body
When the motor 1 is rotated in the opposite direction, that is, in the opposite direction of the arrow A, the driven gear 32 is rotated in the direction of the arrow C in the figure, and the pin 36 is rotated from the stepped portion 34b of the engaging portion 34.
The rotational force is transmitted to the second gear mechanism 37, thereby rotating the entire second gear mechanism 37 in the direction of arrow C.

On the other hand, when the motor 1 is rotated forward, that is, in the direction of arrow A, the driven gear 32 is rotated in the opposite direction of arrow C, and no rotational force is transmitted from the stepped portion 34b to the pin 36. The gear mechanism 37 idles.

Reference numeral 38 denotes an intermediate gear serving as a reversing mechanism rotatably supported between the plates 20 and 21 via a rotating shaft 39, and this is connected to either one of the drive gears 26 and 33, for example, the drive gear 33. ing.

Reference numeral 40 denotes an output shaft rotatably supported between the plates 20 and 21. A driven gear 41 connected to both the drive gear 26 and the intermediate gear 38 is fixed to an intermediate portion of the output shaft. A cam 17 is connected to the portion.

Although not shown, a ball firing lever similar to that of the previous embodiment is provided so as to be reciprocated by a cam 17.

Further, the ratio of the number of teeth of the driven gears 25 and 32 is set to 6:5, and the ratio of the number of teeth of the driving gears 26 and 33 is set to 1:1.

In this embodiment configured as described above, the same effects as in the previous embodiment can be obtained, and in addition, according to this embodiment, it is possible to promote miniaturization of the entire device.

According to the present invention, as is clear from the above description, the rotational force of the motor can be transmitted to the output shaft for driving the ball firing lever with a two-stage gear ratio with a simple configuration and operation.
Moreover, it is possible to provide a game ball ejecting device for a pachinko game machine that can be manufactured at low cost and has effects such as not causing an increase in power consumption or a decrease in motor efficiency.

[Brief explanation of drawings]

1 to 4 show one embodiment of the present invention, in which FIG. 1 is a perspective view showing a game ball ejecting device of a pachinko game machine with its bearing structure omitted, and FIG. 2 and FIG. 3 is a front view and a vertical side view of the first power transmission body, respectively, and FIG. 4 is a plan view of the second power transmission body. 5 to 8 show other embodiments of the present invention, in which FIG. 5 is a vertical sectional view of the main part, and FIGS. 6 and 7 are views of one part of the first power transmission body. FIG. 8 is an enlarged side view showing a part of the second power transmission body. In the figure, 1 is a motor, 2 is a first drive gear (first power transmission body), 7 is a second drive gear (second power transmission body), 1
1 is an intermediate gear (reversing mechanism), 13 is an output shaft, 14 is a ball firing lever, 30 is a first gear mechanism (first power transmission body)
, 37 is a second gear mechanism (second power transmission body), 38 is an intermediate gear (reversing mechanism), and 40 is an output shaft.

Claims (1)

[Scope of utility model registration request] A motor that can be switched between forward and reverse rotations, a first power transmission body that is provided to transmit the rotational force of the motor and that rotates in the forward direction only when the motor rotates in the forward direction, and a second power transmission body that rotates in the reverse direction only when the rotation is in the reverse direction. a power transmitting body, a reversing mechanism connected to the second power transmitting body and reversing its rotation direction, and an output shaft connected to the reversing mechanism and the first power transmitting body and rotated in a predetermined direction. a ball firing lever driven by the output shaft, and the rotation/rotation transmission ratio of the rotation transmission path via the first power transmission body and the rotation transmission path through the second power transmission body; A game ball launcher for a pachinko game machine, which is characterized by being different from each other.