JPH063650Y2 - Ball device for pachinko machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a ball device for a pachinko machine used in an electric pachinko machine.

(Prior Art) As a conventional ball-ball device for a pachinko machine, a ball hammer is intermittently pushed down by an impeller attached to a rotating shaft of a motor and then removed from the impeller, and then the ball is repulsed by an elastic force of a pulling spring. (For example, Japanese Utility Model Publication No. Sho 49-140186), or one in which a ball mallet is attached to the shaft of a rotary solenoid and reciprocates between two stoppers to make a ball (for example, Japanese Utility Model Publication No. 57-4503).
No.) is known.

However, in the former case, variations in the quality of the tension spring,
There is a problem that the elastic force is not constant due to surging or the like, and in the latter case, there is a problem that the elastic force fluctuates in response to a small voltage change of the rotary solenoid.

(Problems to be Solved by the Invention) The present invention solves the above-mentioned conventional problems and always obtains a constant elastic force without being affected by variations in the quality of pull springs, surging, voltage changes, etc. It was completed for the purpose of creating a ball device for a pachinko machine.

(Means for Solving the Problems) According to the present invention, a permanent magnet is mounted on a mallet shaft that is rotatably supported on a base, and two semi-cylindrical exciters are provided on the outer periphery of the permanent magnet. It is characterized in that a non-excitation part for attracting is formed and attached, and a roller arm provided at one end of the mallet shaft is made to face a cam attached to the motor shaft (Example) Embodiments of the invention will be described in detail with reference to the drawings.

(1) is a base of a pachinko machine, (2) is a mounting board mounted on the surface of the base (1), (3) is a cylindrical case provided on the mounting board (2),
(4) is the bearing installed inside the tubular case (3)
A mallet shaft rotatably supported by (5) and (5). Mallet axis
In the portion between the bearings (5) and (5) of (4), a permanent magnet (6) having a substantially rectangular shape and a short side of which is an arc is mounted with its center. (7), (7) are the cylindrical cases
It is an exciter body composed of a semi-cylindrical permanent magnet fitted in the inside of (4) at a distance, and is arranged so as to surround the outer periphery of the permanent magnet (6) of the mallet shaft (4). These exciters (7), (7)
Has two non-excited parts (8) between them, and when no external force is applied, the permanent magnet (6) of the mallet shaft (4) is connected to the non-excited part (8) of the solid line in FIG. Energized to attract to a position.

(9) is a bullet mallet attached to one end of the mallet shaft (4), the motor shaft (12) of the motor (11) at the tip of the roller arm (10) provided in the bullet mallet (9) The cam (13) attached to is facing the roller shaft (10) when the cam (13) is rotated by the motor shaft (12), and the mallet shaft (4) is in the position shown in phantom in FIG. It has a structure that rotates up to.

(Operation) When the player grips the ball handle and drives the motor (11), the cam (13) attached to the motor shaft (12) rotates and the player operates in this way. Abutting on the roller arm (9) provided on the ball hammer (8), the permanent magnet (6) and the exciter body (7),
While rotating the permanent magnet (6) against the repulsive force acting between (7), the ball hammer (8) is pushed down to the ball starting position shown by the imaginary line in FIG. When the cam (13) is further rotated, the roller arm (9) is disengaged from the cam (13), so that the permanent magnet (6) has a semi-cylindrical excitation body (7), and the non-excitation portion (8) of the (7). Then, the mallet shaft (4) rapidly rotates and the bullet is hammered by the bullet mallet (8).

As described above, the ball-ball device for a pachinko machine of the present invention does not perform the ball ball by the elastic force of the tension spring unlike the conventional art, so that there is no variation in the quality of the tension spring or fluctuation in the ball-force due to surging. Moreover, there is no deterioration in quality such as permanent distortion and breakage due to the frequency of use. Further, unlike the rotary solenoid, the driving of the ball-ball device for a pachinko machine of the present invention does not depend on the electric current, so there is no change in the ball jump due to the voltage change. Moreover, the permanent magnet (6) and the exciter (7) used in the present invention
Since both are simple secondary materials, there is little material deterioration and a semi-permanent life can be obtained.

(Effects of the Invention) As is clear from the above description, the present invention always uses a permanent magnet and an exciter that move stably as a driving source for performing a ball, so that the ball is always kept in a constant state. Therefore, as a solution to the problems of the conventional ball device for pachinko machines, its practical value is extremely large.

[Brief description of drawings]

1 is a partially cutaway front view showing an embodiment of the present invention, FIG. 2 is a partially cutaway plan view, and FIG. 3 is a plan view showing the relationship between a permanent magnet and an exciter. (1): base, (4): mallet shaft, (6): permanent magnet, (7): exciter,
(8): Non-excitation part, (10): Roller arm, (12): Motor shaft, (13): Cam.

Claims (1)

[Scope of utility model registration request] 1. A permanent magnet (6) is mounted on a mallet shaft (4) rotatably supported on a base (1), and two semi-cylindrical exciters (7), ( 7) are attached to each other by forming a non-excited part (8) in which the permanent magnet (6) is attracted to each other, and the motor shaft (12) on the roller arm (10) provided at one end of the mallet shaft (1). A ball-ball device for a pachinko machine characterized by facing the attached cam (13).