JPH0615687U - Ball return prevention device for pachinko machines - Google Patents

Abstract

(57) [Summary] [Purpose] By utilizing the principle of the pendulum in the guide plate, it is possible to fly without affecting the speed of the firing ball and to prevent returning balls. [Structure] The ball return prevention device is composed of a main body case and a guide plate, and the main body case has a bent portion at the tip toward an arc-shaped extension line of the launch rail from a mounting base mounted on the upper end side of the launch rail. A support piece extending in a curved shape is formed, and a shield plate is integrally formed on the front side of the main body case to form a space between the mounting base and the bent portion. Attach the pivot pin concentrically,
A substantially U-shaped guide plate consisting of a short plate and a long plate is rotatably attached to the pivot pin via a bearing portion so that the short plate is vertical to the front side of the launch port and has a pachinko machine. The ball is positioned so as to face the ball in the firing direction, and a weight portion is formed at the bottom of the long plate to give the guide plate a pendulum function.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a ball return prevention device for a shot ball in a pachinko machine.

[0002]

[Prior art]

 Conventionally, it is preferable that a pachinko ball that has been once fired in a pachinko machine of this type does not return to the hammer device side. Therefore, a ball return prevention device is attached to the upper end of the firing rail, for example, Japanese Utility Model Publication No. 3-30138. There is one. The technical content disclosed in this publication is that a tongue made of an elastic material is placed at the upper end of the inside of the launch ball guide rail provided on the front surface of the game board, and the upper end is directed upward, and the above-mentioned launch The ball guide rail is mounted so that its distance from the outside is smaller than the diameter of the pachinko balls and larger than the radius of the pachinko balls.

[0003]

[Problems to be solved by the device]

 However, in this conventional configuration, a tongue-shaped elastic body is provided on the upper end of the guide rail of the launch ball so as to be oriented in the launch direction, and its elasticity is utilized to fly without affecting the velocity of the launch ball. It is designed to be able to throw balls and prevent return balls.However, with this elastic body, the deflection at the time of firing and the deflection at the time of prevention are repeated many times, so it has been There was a problem that the elastic function deteriorates due to brittleness itself and may cause damage.

The present invention has been made to solve the above-mentioned conventional problems, and by utilizing the principle of the pendulum, it is possible to fly a ball without affecting the speed of a launching ball and to return a returning ball. It is an object of the present invention to provide a ball return prevention device for a pachinko machine that can prevent the above-mentioned problems and does not lose its function.

[0005]

Means for Solving the Problems In order to solve the above technical problems, the present invention is attached to an upper end side of the launch rail of a launch port for launching a pachinko ball to a game surface side by a guide rail and a launch rail. A ball return prevention device comprising a main body case and a guide plate, the main body case being directed from a mounting base mounted on the upper end side of the firing rail to an arc-shaped extension line of the firing rail. Form a support piece that has a bent portion at the tip and extends in a substantially curved shape.In addition, a shield plate is integrally formed on the front side of this body case to form a space between the mounting base and the bent portion. A pivot pin is attached concentrically to the bent side of the shield plate, and a guide plate having a substantially V-shape consisting of a short plate and a long plate is rotated around the pivot pin through a bearing. It is movably attached and the short plate is vertical to the front side of the launch port, One directed to the firing direction of the pachinko balls is positioned to face, resides with the ball return preventing apparatus of a pachinko machine and configured to impart pendulum function the guide plate to form a weight portion at the bottom of the elongated plate.

[0006]

[Action]

 With the above configuration, the guide plate is instantly rotated clockwise by the contact force of the flying ball from the launch port, and the contact with the guide plate is extremely short, so the flying ball speed is suppressed. Instead, the ball is shot at almost the same speed as the firing speed. In addition, since the guide plate is instantly returned to the original position by the principle of the pendulum after the pachinko ball is thrown, it is possible to prevent the ball from being rapidly rebounded by a nail or the like in a short distance from the firing port. .

[0007]

【Example】

 Next, one embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the side of the launching port 4 of a pachinko ball P. The guide rail is placed on the game board 1 from the launching hammer (not shown) side. 2 and the launch rail 3 are laid in a substantially arcuate shape at a predetermined interval, and the launch rail 3 is formed shorter than the guide rail 2 to form a launch port 4, and a ball return prevention is provided at the upper end of the launch rail 3. A device 5 is attached.

The ball return prevention device 5 is composed of a main body case 6 and a guide plate 20. The main body case 6 is made of synthetic resin or the like, and the main body case 6 has a mounting width substantially the same as the width of the firing rail 3, and the mounting base 7 side thereof is mounted along the game side surface of the firing rail 3. It is formed in a substantially unequal quadrilateral shape having a piece 8 and a mounting hole 9 for mounting with a nail member is provided at a predetermined position, and a mounting reference is provided at a predetermined position on the mounting surface on the game board 1 side. A protrusion 10 is provided (see FIGS. 2 and 3). Further, as shown in FIG. 1, from the inner piece 11 on the opposite side of the illustrated mounting piece 8 of the mounting base 7, a supporting piece 12 extending substantially in a curved shape toward the arc-shaped extension line of the firing rail 3 is formed. A bent portion 13 having a hook shape is formed at its tip. Further, a shield plate 14 is integrally provided on the front side of the body case 6 in the figure to form a space portion 15, and an edge 14a of the shield plate 14 on the launch rail 3 side is on the game surface side of the launch rail 3. A relief portion 16 is formed in a contoured shape and has a predetermined interval t 2 between the tip of the bent portion 13 of the same edge 14a.

Further, a column-shaped force frame portion 17 is formed at a predetermined position on the inner side surface of the support piece 12, and a projection 10 and an attachment reference together with the protrusion 10 are provided on the end surface of the convex portion 17 on the game plate 1 side. The projection 18 is formed to project. Further, a metallic pivot pin 19 for mounting the guide plate 20 is attached to the shielding slope 14 on the bent portion 13 side which is the upper portion of the convex portion 17 in a substantially concentric manner with the bent portion 13.

The guide plate 20 is made of synthetic resin or the like in the form of a plate having elasticity and, as shown in FIGS. 5 and 6, is rotatably fitted to the pivot pin 19 at a predetermined position thereof. A mating bearing portion 21 is formed, and a short plate 22 is formed on the upper side in the figure and a long plate 23 is formed on the lower side with the bearing portion 21 as a boundary, and the short plate 22 and the long plate 23 are separated from each other. The guide plate 20 is formed in a substantially V shape at a predetermined angle, and the edge of the guide plate 20 on the side of the shield plate 14 is formed with a notch 24 over a predetermined range. In addition, a skeletal weight portion 25 is formed in the width direction at the lower end of the long plate 23, and an inclined edge 26 is formed at a predetermined angle on the upper edge side of the short plate 22 as shown in the figure. ing. In this way, the guide plate 20 has the bearing portion 21 inserted into the pivot pin 19 and is rotatably fixed by a C ring or the like, and the short plate 22 is projected from the main body case 6.

When attaching the ball returning device 5 formed in this manner, it is provided at a predetermined position on the launch port 4 side of the launch rail 3 of the game plate 1 in advance on the main body case 6 by a gauge or the like although not shown. A hole for fitting the protrusions 10 and 18 is formed. When the protrusions 10 and 18 are fitted into the holes, as shown in FIG. 1, one of the mounting piece 8 of the main body case 6 and the edge 14a of the shielding plate 14 is formed. The part is abutted along the launch rail 3, and the short plate 22 is exposed to the front side of the launch port 4, and in this state, it is fixed to the game plate 1 with a nail member from the mounting hole 9. In this mounted state, as shown in FIG. 1, the weight portion 25 of the long plate 23 side of the guide plate 20 is in contact with the inside of the support piece 12, and in this state, the short plate 22 is vertically erected and fired. Approximately 1/2 of the width H of the mouth 4 is supported in a shielded manner and oriented in the direction of flight of the flying ball.

When a pachinko ball P is fired by a hammer device in a pachinko machine equipped with the ball return prevention device 5 as described above, the pachinko ball P is guided along the outer guide rail 2 to the emission port 4 side. Then, as shown in FIG. 1, when it comes out of the firing port 4, it comes into contact with the inclined edge 26 of the short plate 22 of the guide plate 20 facing the front thereof. Since the guide plate 20 is rotatably provided via the pivot pin 19 by this contact force, it is immediately rotated clockwise around the pivot pin 19 to a position shown by a two-dot chain line in the figure. That is, the guide plate 20 is rotated so as to form the extension of the firing rail 3 by being rotated toward the escape portion 16 side of the bent portion 13, and at the same time, the pachinko ball P passes toward the game surface side, and this passage At the same time, the guide plate 20 is rotated in the counterclockwise direction by the weight portion 25 formed in the lower portion of the long plate 23 and the guide plate 20 is returned to the original position, so that the guide port 20 is nailed to the launch port 4 side. Even if the pachinko ball P that is about to be bounced back by is collided with the short plate 22 located in the front part of the launch port 4, the long plate 23 prevents the guide plate 20 from rotating in the counterclockwise direction. Do not bounce back to the game board 1 side and go back to the launch port 4 .

As described above, according to the ball return prevention device 5 of this embodiment, the guide plate 20 is provided with the short plate 22 and the long plate 23 with the bearing portion 21 as a boundary, and the weight portion 25 is provided below the long plate 23. The pachinko balls P fired by the hammer device come out from the firing port 4 at the firing speed, and the guide plate 20 has a short length. Although it contacts the inclined edge 26 side of the plate 22, the guide plate 20 is instantaneously rotated clockwise by this contact force, so contact with the guide plate 20 is extremely short. Therefore, the ball speed is not suppressed, and the ball is shot at almost the same speed as the firing speed. Further, since the guide plate 20 is instantly returned to the original position by the principle of the pendulum after the pachinko ball P is struck, it also prevents the splattered ball from being rapidly bounced back by a nail or the like in a short distance from the launch port 4. be able to. Further, the contact force of the pachinko balls P contacting the inclined edge 26 of the guide plate 20 is that the guide plate 20 is instantaneously rotated and the inclined edge 26 is formed longer than the horizontal one, so that the guide plate 20 Along with the fact that the vibration is dispersed, the influence on the bearing portion 21 and further on the pivot pin 19 is significantly reduced, so that the lowering of the pendulum operation function can be prevented.

[0014]

[Effect of device]

 In the present invention, the pachinko ball fired by the hammer device comes out of the firing opening at the firing speed and comes into contact with the edge side of the short plate of the guide plate, and the guide plate instantaneously rotates in the clockwise direction by this contact force. Since it is moved, the contact with the guide plate is extremely short, so the ball speed is not suppressed and the ball is shot at about the same speed as the firing speed. In addition, after the pachinko ball P is thrown, the guide plate is instantly returned to its original position by the principle of the pendulum, so it is possible to prevent the ball from being rapidly bounced back by a nail or the like in a short distance from the launching port. it can. In addition, the contact force of the pachinko balls contacting the edge of the guide plate is instantaneously rotated, so the vibration of the guide plate is dispersed and the influence on the bearing part and, by extension, the pivot pin is significantly reduced. The lowering of the pendulum movement function can be prevented.

[Brief description of drawings]

FIG. 1 is a front view in which a ball return prevention device is attached to a pachinko ball firing port.

FIG. 2 is a plan view of a main body case of the ball return prevention device.

FIG. 3 is a rear view of the main body case.

4 is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is a side view of a guide plate.

FIG. 6 is a plan view of a guide plate.

[Explanation of symbols]

 2 Guide rail 3 Launch rail 4 Launch port 5 Ball return prevention device 6 Main body case 7 Mounting base 12 Support piece 13 Bending part 14 Shielding plate 15 Hollow part 19 Pivoting pin 20 Guide plate 21 Bearing part 22 Short plate 23 Long plate 25 Weight part

Claims (1)

[Scope of utility model registration request] 1. A ball return prevention device attached to an upper end side of the launch rail of a launch port for launching a pachinko ball toward a game surface by a guide rail and a launch rail, the ball return prevention device being a main body case. And a guide plate, and the main body case forms a support piece extending in a substantially curved shape having a bent portion at the tip from the attachment base attached to the upper end side of the firing rail toward the arc-shaped extension line of the firing rail, Further, a shield plate is integrally formed on the front side of the main body case to form a space between the mounting base and the bent portion, and a pivot pin is attached concentrically to the bent portion of the shield plate. A substantially U-shaped guide plate consisting of a short plate and a long plate is rotatably attached to the pivot pin via a bearing portion so that the short plate is vertical to the front side of the launch port and has a pachinko machine. Position it so that it faces the firing direction of the ball, A ball return prevention device for a pachinko machine, which has a weight part formed at the lower part to give a pendulum function to the guide plate.