JPH0736589U - Finite angle torque motor and pachinko machine - Google Patents

Abstract

(57) [Summary] [Object] The present invention relates to a finite angle torque motor and a pachinko launching machine, and in particular, it is an object of the present invention to generate a torque larger than the conventional one with an inner rotor type and obtain a configuration suitable for the pachinko launching machine. To do. [Structure] The finite angle torque motor and the pachinko launcher according to the present invention have a ring-shaped groove formed on the outer circumference (6A) of the rotor (6).
Since the exciting coil (10) is guided in (3), torque can be increased by making the gap radius (R) larger than before, and the spring (33) of the pachinko hammer (31) is large. It is a structure that can be pulled by torque and a device with a strong firing force can be obtained.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a finite-angle torque motor and a pachinko launching device, and more particularly to a new improvement for generating a torque larger than the conventional one in an inner rotor type and obtaining a configuration suitable for the pachinko launching device.

[0002]

[Prior art]

 The configuration shown in FIG. 3 has been adopted as a finite angle torque motor of this type which has been conventionally used, for example, as a rotary solenoid. That is, what is denoted by reference numeral 1 in FIG. 3 is a ring-shaped stator, and inside the ring-shaped stator 1, there is formed a stator pole 2 having a pair of stator teeth 2a and 2b which protrude inward and are axially separated from each other. Are formed in the circumferential direction.

A ring-shaped exciting coil 10 is provided inside a ring-shaped groove 3 formed between the stator teeth 2a and 2b. A rotor 6 is rotatably provided in the formed inner hole 5. The rotor 6 is rotatably provided by a rotary shaft (not shown).

The rotor 6 has rotor poles 7 formed of three protrusions corresponding to the stator poles 2, and a gap 8 is formed between each rotor pole 7 and each stator pole 2. It is being touched. Therefore, in the above-mentioned configuration, when the exciting coil 10 is energized, the rotor 6 is limited by the effective angle θ which is 1/2 of the pole claw interval θ _K due to the magnetic action between each stator pole 2 and each rotor pole 7. Rotate.

[0005]

[Problems to be solved by the device]

 Since the conventional finite angle torque motor is configured as described above, there are the following problems. That is, from the well-known theory that the torque generated in the case of the conventional inner rotor type construction depends on the gap radius R existing between the gap and the shaft center of the rotor, this gap radius is the outer diameter of the motor. It was extremely small compared to, and it was located further than the inner diameter of the exciting coil, so it was impossible to obtain a large torque. The present invention has been made to solve the above problems, and in particular, an object thereof is to provide a finite-angle torque motor and a pachinko launching device that are of an inner rotor type and generate a larger torque than conventional ones. And

[0006]

[Means for Solving the Problems]

 A finite-angle torque motor according to the present invention comprises a ring-shaped stator provided in a casing, an exciting coil provided in the ring-shaped stator, a rotary shaft having a rotor rotatably mounted on a bearing of the casing, and a rotor of the rotor. A ring-shaped groove formed on the outer periphery for guiding the excitation coil; a plurality of stator poles formed on the ring-shaped stator; and rotor poles formed on the rotor corresponding to the respective stator poles, The gap located between the ring-shaped stator and the rotor is located outside the inner diameter of the exciting coil.

More specifically, the rotor is configured by a pair of rotor pieces divided in the axial direction.

More specifically, the hammer of the rotating shaft of the finite angle torque motor according to claim 1 is rotated against the restoring force of the spring, and the restoring force of the spring strikes a ball through the hammer. It is a pachinko launcher.

[0009]

[Action]

 In the finite angle torque motor according to the present invention, since the exciting coil of the stator is guided in the ring-shaped groove of the rotor, the gap half diameter from the center of the rotor to the gap becomes larger than the conventional one, and the torque of the rotor is increased. be able to. Further, in the pachinko launching apparatus according to the present invention, a hammer is provided on the rotary shaft of the finite angle torque motor capable of generating the large torque described above, and when the hammer is urged by the spring to operate the finite angle torque motor, The hammer is rotated against the return force of the ball and the operation of the finite angle torque motor is turned off. At the same time, the ball is hit by the hammer by the return force of the spring.

[0010]

【Example】

 Hereinafter, preferred embodiments of a finite angle torque motor and a pachinko machine according to the present invention will be described in detail with reference to the drawings. It should be noted that the same or similar parts as those of the conventional example are designated by the same reference numerals for description. Reference numeral 1 in FIGS. 1 and 2 denotes a ring-shaped stator provided in a casing 20. Inside the ring-shaped stator 1, a pair of stator teeth 2a that project inward and are axially separated from each other. , 2b are formed at equal intervals in the circumferential direction.

A ring-shaped exciting coil 10 is provided inside a ring-shaped groove 3 formed between the stator teeth 2a and 2b. A rotor 6 is rotatably provided in the formed inner hole 5. The rotor 6 is provided on a rotary shaft 22 which is rotatably provided on a pair of bearings 21 provided on the casing 20.

The rotor 6 is composed of a pair of rotor pieces 6 a and 6 b which are divided into two in the axial direction, and three rotor poles are formed from three rotor teeth 7 a formed on each rotor piece 6 a and 6 b. Have 7. That is, a pair of rotor teeth 7 a of each rotor piece 6 a, 6 b constitutes a rotor pole 7, and each rotor pole 7 is formed corresponding to each stator pole 2.

A ring-shaped groove 3 is formed at a central position in the axial direction of the rotor 6, and the exciting coil 10 is guided in the ring-shaped groove 3. The gap 8 formed between the outer circumference 6A of the rotor 6 and the inner circumference 1A of the annular stator 1 is located outside the inner diameter 10A of the exciting coil 10, and the gap radius R can be larger than that of the conventional configuration. It is included.

Therefore, when the exciting coil 10 is excited in the above-described configuration, the rotor 6 rotates at an angle of the finite angle θ shown in FIG. 4, and a larger torque than that of the conventional configuration can be obtained.

Next, a hammer 31 is provided on the rotary shaft 22 of the finite angle torque motor 30 having the above-described structure, and a spring 33 is provided between the hammer 31 and the main body 32 (however, the spring 33 is a torsion provided on the rotor 6). It is also possible to use a spring or the like), the rotor 6 is rotated against the restoring force of the spring 33, and the energization of the exciting coil 10 is turned off when the spring 33 is extended, so that the spring 33 returns. The force causes the hammer 31 to rotate, and the hammer 31 can hit a pachinko ball (not shown).

[0016]

[Effect of device]

 Since the finite angle torque motor and the pachinko launching device according to the present invention are configured as described above, the gap radius of the rotor can be made larger than before, and the torque increase in the inner rotor type can be obtained. The stronger spring of the launcher can be pulled, and the firing force can be adjusted freely.

[Brief description of drawings]

FIG. 1 is a block diagram showing a finite angle torque motor and a pachinko machine according to the present invention.

FIG. 2 is an exploded perspective view of a main part of FIG.

FIG. 3 is an exploded perspective view showing a conventional finite angle torque motor.

FIG. 4 is a configuration diagram of a main part of FIG.

[Explanation of symbols]

 1 ring-shaped stator 2 stator pole 3 ring-shaped groove 6 rotor 7 rotor pole 8 gap 10 exciting coil 10A inner diameter 22 rotary shaft 30 finite angle torque motor 31 hammer 33 spring

Claims (3)

[Scope of utility model registration request] 1. A ring-shaped stator (1) provided in a casing (20), and an exciting coil provided in the ring-shaped stator (1).
(10), a rotating shaft (22) having a rotor (6) rotatably provided on the bearing (21) of the casing (20), and the rotor (6)
A ring-shaped groove (3) formed on the outer periphery (6A) of the ring for guiding the exciting coil (10), a plurality of stator poles (2) formed on the ring-shaped stator (1), and each stator pole (2) Corresponding to the rotor pole (7) formed in the rotor (6), the gap (8) located between the annular stator (1) and the rotor (6) is the inner diameter of the exciting coil (10). A finite angle torque motor characterized in that it is arranged outside (10 A). 2. The finite angle torque motor according to claim 1, wherein the rotor (6) comprises a pair of rotor pieces (6a, 6b) divided in the axial direction. 3. A hammer (31) of a rotary shaft (22) of a finite angle torque motor (30) according to claim 1 or 2 is rotated against a restoring force of a spring (33), and the spring (33) is rotated. A pachinko launching device that hits a ball through the hammer (31) by the returning force of the.