JP2678477B2 - Ball launcher for pachinko machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention attracts a coil penetrating a coil by energizing it, and using this attractive force, the tip of the plunger is projected to the starting end of a firing rail. The present invention relates to an improvement of a solenoid-type hitting ball launching device of a pachinko machine, in which a hitting ball supplied to this is shot toward a game board.

[Prior Art] Japanese Patent Laid-Open Nos. 61-29375 and 62-292184 disclose solenoid-type hitting ball launching devices in which a plunger is attracted by excitation and a pachinko ball is shot at the tip of the plunger. Is known by.

The solenoid-type ball-striking device is different from the conventional motor-striking ball-striking device, in which a mallet-shaped rod is intermittently reciprocally oscillated by a motor to shoot a ball. And, it is related to the structure for firing a hit ball with the hitting force accompanying this movement.

This solenoid type hit ball launching device aligns the moving direction of the plunger with the firing direction of the hit ball as disclosed in the above-mentioned publication,
The pachinko ball (striking ball) supplied to the starting end is struck and fired at this starting part each time the solenoid is excited, with its tip facing the starting end of the launch rail. The impact caused by causes a large impact, and if the solenoid is directly fixed to the pachinko machine body, a large vibration and noise will be generated.

Therefore, as disclosed in the above-mentioned publication, as one means for eliminating this impact, the solenoid is supported by two shafts that are parallel to the firing direction of the ball, and a cushioning material is inserted between the shaft and the solenoid. A method has been proposed in which the shock caused by the impact is avoided by absorbing it with a cushioning material while moving it along the shaft. This method of supporting by the shaft is convenient in that a stable striking can be obtained because the moving direction of the plunger, that is, the striking direction does not shift when absorbing a shock. The structure that holds between the support arm and the length of the shaft and the seat (support portion) provided midway is easy in assembly and effective in that it does not occupy space. Even in the structure, if a large number of shots are continuously fired, there is a problem that the flying state changes and unevenness occurs.

Normally, a batting launcher incorporating an automatic feeder for continuous batting is designed to fire 100 battings per minute. For this reason, if one or two of these hit balls do not fly normally, many foul balls will occur, which hinders smooth game play.

[Problems to be Solved by the Invention] The present invention has been researched and developed in order to solve the conventional problems in the above-described solenoid-type hitting ball launching device.

In other words, as a result of repeated examinations of the cause of the unevenness in flight in the ball-striking launcher relating to the support of the solenoid by the shaft and the use of the shock-absorbing shock means by the cylindrical shock-absorbing material, it was found that one of the causes was the shock-absorbing material. I did.

As described above, the tubular cushioning material has a relatively stable effect in mitigating the impact generated at the time of impact due to the excitation of the solenoid, but when compressed during impact absorption, its inner peripheral surface fits. It may come into contact with the outer peripheral surface of the mounted shaft, and the frictional resistance due to this contact causes a difference in the compressed state, resulting in a difference in the protrusion length of the plunger, which results in a difference in the striking force against the ball and unevenness in flight. It is thought to occur.

The present invention is intended to provide a stable solenoid type ball striking device which has a more stable impact absorbing action by eliminating the thermal frictional resistance generated between the tubular cushioning material and the shaft, and which is stable and free from uneven flight. is there.

[Means for Solving the Problems] That is, the present invention has been made based on the above-mentioned object, and is characterized in that a striking ball supplied to the starting end of a launch rail is hit and launched by attracting a plunger by excitation. In the hitting ball launching device of the pachinko machine, a shaft is provided laterally behind the launch rail in parallel with the extension line of the launch rail, and a solenoid is slidably supported on the shaft so that the solenoid is slidably supported. While aligning the center of the trajectory of the hit ball on the launch rail with the extension of the flight ball imaginary line, a cushioning member formed in a cylindrical shape by an elastic material on the shaft is provided between the shaft peripheral surface and the cylinder inner peripheral surface. Another object of the present invention is to provide a hitting ball launching device, characterized in that it is fitted with a gap provided therein and is inserted between a seat provided on the shaft and a mounting arm of a solenoid.

Hereinafter, the present invention will be described in more detail based on illustrated embodiments.

Embodiment FIG. 1 is a front view showing the assembling of a solenoid type hit ball launching device according to the present invention, and FIG. 2 is an exploded perspective view of the upper diagram.

In the drawing, 1 is a mounting board, 2 is a ball launching device which is assembled to this board, 3 is a launch rail, and 4 is a guideway for guiding a ball to a starting end 5 of this rail.

The mounting board 1 is for mounting the lower edge of the game board in the lower part of the mechanism frame for accommodating the game board and fixing it at a fixed position. In this embodiment, a ball is shot at the lower right part of the front surface of the board. The mounting portion 6 of the device 2 is provided, and the firing rail 3 is fixedly attached adjacent to this mounting portion. A foul ball receiving port 7 is provided so as to face the tip of the launch rail 3, and a cover 8 for preventing the hit ball from jumping out is integrally provided in parallel with the upper part of the launch rail.

The hit ball launching device 2 includes a solenoid 10 having a plunger 9 inserted through a coil and a mounting frame 11 for mounting the solenoid to the mounting portion 6.
A ball cutting control device 12 for intermittently supplying pachinko balls sent one by one through each other is provided.

The solenoid 10 is provided with a coil inside the case body, a plunger is inserted into a through hole that penetrates the center of the coil in a skewered shape, both ends of which are projected to the outside of the case body, and the tip end is made of an elastic material. The striking member 13 is provided with a flange-shaped stopper 14 at the rear end portion and a return spring 15 which is contracted between the stopper and the case body and biases the plunger backward.

The mounting frame 11 is a fixing member for mounting the solenoid 10 to the mounting portion 6 and is formed in a shallow housing shape.
Shaft mounting grooves 17, 17 with semicircular cross section at the lower end of 16, 16
Are provided, and a mounting piece 19 is provided at a front edge portion of the upper plate 18.

The solenoid 10 has the case body directly fixed to the pedestal 20 and is integrated therewith. The two arms 21 and 2 provided on the pedestal
The shaft 22 is slidably penetrated through the end of the shaft 1.

The solenoid 10 is first fixed to a pedestal, then mounted on the mounting frame 11 via the pedestal, and then mounted on the mounting substrate by fixing the mounting frame to the mounting portion 6. To explain this mounting relationship in more detail, first insert the shaft 22 into the mounting arms 21 and 21 of the pedestal 20, then insert both ends of this shaft into the mounting grooves 17 and 17 of the mounting frame from the front side, and penetrate the shaft. Pass the screw 24 through the hole 23 provided,
This is rubbed into the bottoms of the mounting frames 17 and 17 to attach the lower part of the pedestal to the mounting frame. On the other hand, tongue piece 25 provided on the upper part of the pedestal
Is attached to the attachment piece 19 of the attachment frame 11, and a stop piece 26 is attached to the tongue piece 25 at a slight distance so as to overlap with the attachment piece 19.
By fixing this to the mounting piece 19 with a screw, the tongue piece 25 is mounted so that the tongue piece 25 can freely move in the surface direction of the mounting piece, that is, in the front-back direction.

In the figure, 27 and 28 are cushioning members made of an elastic material for absorbing the shock generated as the solenoid plunger slides, and are formed in a tubular shape, and one cushioning member 27 is a shaft.
A seat that is inserted through 22 and fixed in the middle of mounting arm 21 and shaft
The other cushioning member 28 is accommodated between the stopper piece 26 and the arm 30 extending from the pedestal 20.

Here, both of the cushioning members 27 and 28 are shown in FIGS.
As shown in detail in the drawings, for one of the buffer members 27, the inner diameter of the cylinder is made larger than the outer diameter of the shaft 22 so that a gap 27a is formed between the inner wall surface and the outer peripheral surface of the shaft. A spacer 31 having a small tubular portion 31a is interposed between the arm 21 receiving both ends and the seat 29, and the small tubular portion 31a is formed between the outer peripheral surface of the shaft by penetrating the small tubular portion 31a inside the cushioning member. Is formed so that a constant gap can be secured over the entire inner circumference, and the other cushioning member 28 has a boss shape in which both ends formed in a cylindrical shape are provided so as to face each of the stopper piece 26 and the arm 30 so as to face each other. The fitting portions 26a and 30a are fitted to each other so that the inner wall surfaces in the middle of their respective lengths do not come into contact with others.

Thus, the mounting frame 11 to which the solenoid 10 is mounted via the pedestal is fitted to the mounting portion 6 of the mounting substrate 1 and fixed by the screw 32 to be fixed in position. Of course, in this assembly, the shaft 22 supporting the solenoid 10 is aligned in the longitudinal direction of the firing rail 3, and along with this, the axis of the plunger 9 is guided to fly on the firing rail. It goes without saying that the screw fixing positions of the mounting substrate 1 and the mounting frame 11 are specified in advance so that they can be aligned with the extension of the flying ball imaginary line connecting the centers of the trajectories.

In this assembly, the solenoid 10 is further fitted with the plunger 9
With its leading end facing the starting end 5 of the firing rail 3 and assembled so that it can hit the pachinko ball supplied to the starting end.

By the way, when the solenoid 10 is demagnetized, the return spring 15 causes the rear end portion to protrude rearward, and the stopper 33 provided in the middle of the length of the front end portion of the plunger is brought into contact with the wall surface of the case body to stand by. When energized, the striking member 13 provided at the tip end is protruded to the starting end 5 for striking so that the striking operation can be performed by sending a certain number of signals for a certain period of time to repeatedly excite the solenoid. repeat.

On the other hand, the ball cutting control device 12 links the pachinko ball sent through the guide path 4 in synchronization with the striking motion of the solenoid.
It is to send out to the starting end one by one, and a ball cutting gear 35 facing the inside through a window 34 opened by notching the wall of the taxiway,
From a rotation restricting piece 36 that sends the rotation of the gear for each tooth, a connecting rod 37 that swings the restricting piece, and an interlocking rod 38 that transmits the striking motion of the plunger 9 to the restricting piece 36 via the connecting rod 37. Has become.

The ball cutting gear 35 receives and sends out one ball passing through the guideway into the recess between the teeth, and at the same time, receives the weight of the ball and rotates about the support shaft 39 as a fulcrum. axis
It swings around the fulcrum 40 to allow rotation of each tooth of the gear 35.

The restriction piece will be further described. The restriction piece has two locking claws 36a and 36b facing each other, and both locking claws are made to face the gear 35 and swing about a shaft 40 as a fulcrum. As a result, any one of the pawls is engaged with the teeth of the gear to stop the rotation. And this restriction piece is the solenoid 10
When the plunger 9 is in the retracted posture (the state shown in FIG. 1), the abutting portion 41 at the lower end of the interlocking rod 38 is pushed out by the stopper 14 of the plunger, and swings around the support shaft 40 as a fulcrum to move the connecting rod 37. By pushing it forward, it rotates counterclockwise around the shaft 40 as a fulcrum, and the pawl 36a engages with the teeth of the gear 35 accordingly. For this reason, the ball that falls down the guide path is contained in the recess of one tooth, is prevented from falling, and is restrained there.
Next, in this state, when the solenoid 10 is excited and the plunger 9 moves forward to enter a striking operation, the interlocking rod 38 is released from the pressing of the plunger, so that the spring applied to the connecting rod 37.
By the pulling of 43, this connecting rod retracts and the regulating piece is rotated clockwise.

Therefore, when the first pawl 36a is disengaged from the gear 35 and at the same time the other pawl 36b engages with the next tooth to release the ball previously stopped at this gear, the ball immediately following is caught. (See FIG. 3).

When the striking solenoid is demagnetized again in this state, the plunger is retracted by the action of the spring 15, so that the rotation restricting piece 36 again rotates counterclockwise via the interlocking rod 38 and the connecting rod 37, and the pawl is moved. 36b will be disengaged and the other pawl 36a will engage the gear teeth and will stop the rotation of the sphere until it receives the sphere in the gear recess.

When one operation is performed by excitation and demagnetization of the solenoid in this manner, one pachinko ball is sent out from the gear 35 and supplied to the starting end 5 of the firing rail as described above, and is prepared for the next hit. As a result, one pachinko ball is supplied for one hitting motion, and continuous firing is possible.

The device of the present invention is configured and operates as described above, and sends a certain number of signals to the solenoid 10 at a certain time by operating an operating means (not shown) such as an operating grip and lever provided on the front of the pachinko machine. , Along with this, the game is operated by energizing from the power source and operating the hammer. Then, a prize ball saucer provided on the front surface of the pachinko machine is connected to the guide path 4 to continuously supply the balls to promote the game.

When the solenoid 10 is excited and strikes in this operation, the striking member 13 at the tip of the plunger plunges into the starting end 5 and strikes a ball waiting for this, and at the same time the stopper 14 at the rear end abuts against the rear surface of the case body. Thus, the protrusion amount of the striking member is regulated. Then, when it is returned by the spring 15 due to demagnetization, the stopper on the tip side of the plunger
The 33 contacts the front surface of the case body to determine the retracted position, and as a result, the striking strokes of the plunger 9 are made uniform by the both stoppers, and the flight distance of the hit ball under a constant current is made uniform. .

When the stopper 14 at the rear end contacts the case body in the striking motion of the plunger, the cushioning member 28
Is compressed and absorbs the shock, and when the return spring 15 returns the plunger 9, the shock of the stopper 33 is absorbed by the other buffer member 27, and the mounting frame 11 and the mounting board 1
It automatically absorbs the vibrations that accompany the pachinko machine and the accompanying noise. At the same time, by making the insides of both cushioning members hollow, the shock absorbing member expands in diameter and is compressed in the longitudinal direction at the time of shock absorption. Since it is not compressed uniformly, it is always compressed uniformly over the entire circumference, stable contraction, and elongation are obtained, so the impact absorption repulsion may become uneven when continuous hits are repeated. Therefore, stable continuous hits are possible.

[Effects of the Invention] As described above in detail with reference to the embodiments of the present invention, according to the device of the present invention, the vibration of the solenoid caused by the movement of the plunger at the time of hitting the ball with the excitation of the solenoid, and the return spring with the demagnetization. Since the impact of the plunger at the time of returning by this action is effectively absorbed by the cylindrical member, it is possible to eliminate unnecessary vibration and noise. In the present invention, the shaft peripheral surface is touched when the cushioning member is compressed by securing a certain gap between the cushioning member and the shaft supporting the cushioning member, and when the cushioning member is further expanded by releasing the compression. Since it constantly repeats constant contraction and extension without any damage, it has excellent stability and does not give unnecessary vibrations to the solenoid. Therefore, it is possible to guarantee a constant striking force and to expect a stable hit ball launch with no unevenness. .

[Brief description of the drawings]

FIG. 1 is a front view showing the assembling of the solenoid type hit ball launching apparatus according to the present invention, FIG. 2 is an exploded perspective view of the upper view, FIG. 3 is a front view of a main part at the time of hitting, and FIG. FIG. 5 is a longitudinal sectional view of the main part when the main part is retracted by magnetism. 3 ... Launch rail, 4 ... Starting end 9 ... Plunger, 10 ... Solenoid 21 ... Mounting arm, 22 ... Shaft 27, 28 ... Buffer member, 29 ... Seat 37a ... Air gap

Claims (1)

(57) [Claims] 1. A hitting ball launching device for a pachinko machine, which hits and launches a hitting ball supplied to the starting end of a launching rail by attracting a plunger by excitation, and is parallel to an extension line of the launching rail behind the launching rail. Shaft is installed laterally, and the solenoid is slidably supported on the shaft so that the axial center of the plunger is aligned with the extension line of the flight ball virtual line connecting the centers of the flight paths of the ball on the launch rail. A cushioning member formed in a tubular shape by an elastic material is fitted on the shaft with a gap provided between the shaft peripheral surface and the cylinder inner peripheral surface,
A hitting ball launching device characterized by being inserted between a seat provided on the shaft and a mounting arm of a solenoid.