JPH0142700B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a high-speed instantaneous large-volume dosing machine.

As a ball dispensing machine for a pachinko parlor, a number of alignment grooves into which a plurality of balls enter and align are provided radially on the board surface, and an alignment plate that is connected to a motor and rotates horizontally is provided, and the alignment plate is rotated by a predetermined angle. A ball dispensing machine that counts and discharges a predetermined number of balls is in practical use. This type of ball dispensing machine utilizes the centrifugal force generated by the rotation of the alignment plate to quickly align and discharge the balls prior to counting. The number of balls to be discharged is determined by the rotation angle of the sorting board. Therefore, in order to eject a large amount of balls in one operation, it is necessary to rotate the sorting board at the highest possible speed and with a large rotation angle. Considering the configuration, there was a natural limit to the maximum number of balls that could be ejected.

This invention was made in view of the above points, and it is possible to handle a large number of balls in one operation without making the rotation of the sorting plate small, and with virtually no restrictions on the rotation angle from a practical standpoint. The purpose is to provide a ball dispensing machine that can eject balls instantaneously.

Embodiments of the present invention will be described below with reference to the drawings. 1 is an alignment plate; 2 is a cover; balls A flowing from the center of the cover flow into a large number of alignment grooves 3 provided radially on the surface of the alignment plate, and are aligned by rotation of the alignment plate 1; This is a well-known combination configuration in which the balls A are counted and discharged to the ball receiving port 5 while being regulated by the discharge ball regulating protrusion 4.

6 is a support shaft installed vertically at the center of the bottom surface of the alignment board 1.
The alignment board 1 is supported so as to be horizontally rotatable. 8
10 is a motor connected to a support shaft 6 via a bevel gear 9;
1 is a relay gear attached to the support shaft 6, and 11 is a control gear meshing with the relay gear 10, which has an integral multiple of the relay gear 10 in terms of the number of teeth.

12 a ratchet mounted on the shaft 13 of the control gear 11; 14 a set lever also rotatably fitted on the shaft 11; 15 a pushing pawl pivotally connected to the set lever 14 and engaged with the ratchet 12; 16 a machine base 7. a retaining pawl pivotally connected to and engaging the ratchet 12;
17 and 18 are springs that urge both pawls 15 and 16 in the engaging direction; 19 is a guide provided on the machine base 7 below the set lever; when the set lever 14 is moved from the standby position to the set position, the push pawl 15 is biased; The protruding pin 20 is guided by this and the pushing pawl 15 is separated from the ratchet 12. 21 and 22 are stoppers for stopping the set lever 14 at the standby position and the maximum set position; 23 is an operating piece installed on the set lever 14; 24 is a power switch for the motor 8; Immediately after the set lever 14 starts moving from the set position, the operating piece 23 presses the operating rod 25 to close the switch 24, and immediately before the set lever 14 stops at the standby position, the switch 24 is turned off. That's what I do. When the set lever 14 is moved from the standby position to the set position, the operating rod tip 26 is bent by the movement of the operating piece 23 and does not take part in opening or closing the switch 24.

Reference numeral 27 denotes a brake ring attached to the lower surface of the alignment plate to ensure a stopping point for the alignment plate 1, and 28 indicates a locking head 30 provided at one end of the brake ring 27 to be locked to a locking protrusion 29 protruding from the brake ring 27. It is a rocking body, which is pivotally connected to the machine base 7, and has a roller 32 attached to the other end facing the inclined surface 31 formed at the tip of the operating piece 23.
When the locking head 30 is pushed down by the movement of the locking projection 29, the locking head 30 projects into the locus of movement of the locking protrusion 29. 33 is the brake ring 27
This is a positioning body provided corresponding to the inner circumferential edge of the brake ring 27. This is a positioning body that has a spring 34 and a ball 35 installed in a cylindrical hole, and makes the ball resiliently slide against the inner circumferential edge of the brake ring 27. It is designed to fit into a recess 36 provided in the. Reference numeral 37 denotes a tension spring stretched between the set lever 14 and the machine base, which constantly exerts a rotational force on the set lever 14 in the normal rotation direction, that is, toward the standby position.

In the above configuration, the operation will be explained next. When you take the set lever 14 in the standby position and move it to the set position, the tension spring 37 expands, and the tip end 26 of the operating rod of the switch 24 is pushed by the operating piece 23 so that the operating piece 23 is bent. Allow passage.

When the set lever 14 reaches the set position,
The pin 20 of the pushing pawl 15 moves away from the guide 19 and engages the ratchet 12. When the lever is released, the set lever 14 begins to move toward the standby position under the bias of the tension spring 37. When the operation piece 23 moves slightly, it switches to the switch 24.
Push the operating rod 25, close the switch 24, the motor 8 will rotate, and with this power the sorting board 1 will rotate all at once until the set lever 14 stops at the standby position and eject a predetermined number of balls A. However, the switch 24 of the motor 8 is turned off just before the pushing pawl 15 collides with the stopper 21. In addition, pushing claw 1
5 remains engaged with the ratchet 12 and is stopped by being inserted between the stopper 21 and the ratchet 12, and immediately before this stop, the operating piece 2
3 pushes the rocking body 28, and its locking head 30
When the alignment plate 1 reaches the stop position, it is simultaneously engaged with the locking protrusion 29 of the brake ring 27, and the ball 35 of the positioning body 33 is fitted into the recess 36 of the brake ring 27 to stop the alignment plate 1. subsidize.

As described above, the present invention mechanically links the sorting board and the set lever, sets the set lever to a small rotation angle, and the sorting board rotates at a rotation angle that is an integral multiple of this rotation angle to eject a large amount of balls. It is also characterized by the fact that it uses the power of a motor to rotate the alignment plate.

As an example, if the rotation ratio of the setting gear and the relay gear of the alignment plate support shaft is 1:2.5, and the number of teeth of the ratchet integrated with the setting gear is 10, this inter-tooth angle is
During this time, the ratchet rotates 36 degrees, causing the alignment plate to rotate 90 degrees, or 1/4 turn.

Therefore, according to the present invention, even if the setting angle by moving the set lever is small, the rotation angle of the rotating alignment plate can be greatly expanded, improving operability, and the alignment plate can be easily adjusted after setting. Since the ball ejection operation is performed by motor power, even if the rotation angle of the sorting plate is large, it operates instantly and has good counting efficiency.Moreover, the device is simple and compact, has high reliability, and is easy to maintain. Its practical effects are great.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan view with a part of the ball dispenser removed, FIG. 2 is a vertical front view, FIG. 3 is a plan view of the operating part, and FIG. 4 is an operation explanatory diagram.

Claims (1)

[Claims] 1. A large number of alignment grooves into which a plurality of balls enter and align are provided radially on the board surface, the front surface of the plurality of alignment grooves is opened to a ball receiving opening, and an alignment plate that rotates horizontally is provided, and the alignment plate is covered and corresponds to the ball receiving opening. In a ball dispensing machine equipped with a cover provided with a ball-stopping protrusion on the lower surface for regulating balls discharged from the alignment groove, a motor is connected to the alignment plate support shaft, and a relay gear is fixed to the gear. The control gears are meshed, a set lever is loosely fitted onto the control gear shaft, and the control gear and the lever are linked via a ratchet mechanism, and a power switch for the motor is provided which is linked to the set lever, and the switch is set when the lever is in the set position. This high-speed instantaneous large-volume dowel dispensing machine is characterized in that it is configured to be closed immediately after becoming free and cut off immediately before reaching the standby position.