JPH0884812A - Ball jetting device for pachinko machine - Google Patents

Abstract

PURPOSE: To coaxially and exactly fit the rotary shaft of a manipulation handle and a pulley by fitting the axial cylinder of a ball jetting handle clamping part from the front side to the through hole of a front surface frame, protruding the shaft of the manipulation lever of the clamping part from the center of the axial cylinder, fitting that shaft to a bearing and fixing it to a spring tension adjusting pulley. CONSTITUTION: A hammer 4 is supported on a fitting board 2 by a supporting pin 3 so as to be freely rotated, and a cam 8 is fixed to a rotary shaft 7 of a low-speed rotation motor 5 fixed on the rear surface of the fitting board 2. An arm 9 integrated with the hammer 4 is provided with a roller 10, and the hammer 4 is repeatedly rotated by engaging the cam 8 with the roller 10. On the surface of the fitting board 2, a bearing 19 is fixed coaxially with a spring tension control pulley 14, the bearing 19 is fitted to a through hole 18 of a front surface frame 1, the fitting board 2 is fixed on the rear surface of the front surface frame 1, and an axial cylinder 23 at a clamping part 21 of a ball jetting handle 20 is fitted to the through hole 18. When a shaft 13 of a manipulation lever 22 of the clamping part 21 protrudes from the center of the axial cylinder 23 and fitted into the blearing 19, that shaft is made coaxial with the spring tension adjusting pulley 14 and can be integrally turned.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pachinko machine in which a spring tension adjusting pulley mounted on a substrate fixed to the back surface of a front frame of an electric pachinko machine is rotated by a shaft of an operation lever mounted on the front surface of the front frame. Related to the ball launch device.

[0002]

2. Description of the Related Art A conventional example shown in FIGS. 3 and 4 will be described. Reference numeral 101 is a front frame of the pachinko machine, and 102 is a mounting board for a ball-striking launcher which is fixed to the back surface of the front frame 101 with screws or the like. A ball striking rod 104 is rotatably supported by a spindle 103 on the rear surface of the central portion of the mounting substrate 102. 105 is a motor mounting frame 10 on the rear surface of the mounting substrate 102.
6 is a low-speed rotation motor fixed via 6
A cam 108 is fixed to the rotating shaft 107 of No. 5. 10
Reference numeral 9 denotes an arm integral with the hitting rod 104, which is provided with a roller 110 capable of engaging with a cam 108. The cam 108 engages with the roller 110 to repeatedly rotate the hitting rod 104. It is like this. 1
Reference numerals 11 and 112 denote stoppers fixed to the mounting substrate 102 for restricting the repetitive rotation range of the ball striking rod 104. 11
Reference numeral 3 denotes a rotary shaft of an operation lever 122 which will be described later, and a pulley 114 is fixed to the rear end of the rotary shaft. Reference numeral 115 is a spring adjuster, and the other end of a pulling spring 116 having one end connected to the ball striking rod 104 and the other end of a wire 117 having one end connected to the pulley 114 are connected to each other. Pulley 11 on front frame 101
4 has a through hole 118 formed coaxially therewith, and the bearing 11
9 is fitted and fixed. An operation handle 120 includes an arm-shaped grip portion 121 and an operation lever 122 having a rotary shaft 113. The cylindrical base 123 of the grip portion 121 is fitted and fixed to the bearing 119 to form a rotary shaft. Reference numeral 113 projects to the rear surface side of the mounting substrate 102, and the pulley 114 is fixed to the projecting end so as to rotate integrally.

[0003]

DISCLOSURE OF THE INVENTION In the above prior art,
When the bearing is fitted and fixed to the through hole of the front frame from the front, it is difficult to install it coaxially with the spring tension adjustment pulley fixed to the rear surface of the front frame. Has a problem in that the work is troublesome because the bearing position must be corrected using a gauge and then installed.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems, and a mallet, a mallet rotation motor,
A mallet tension spring, a spring tension adjustment pulley, a bearing is fixed to the surface coaxially with the spring tension adjustment pulley, the bearing is fitted into a through hole of the front frame of the pachinko machine, and the board is fixed to the back of the front frame. , The ball cylinder of the ball firing handle gripping part is fitted into the through hole from the front, and the shaft of the operation lever rotatably attached to the gripping part is projected from the center of the shaft cylinder and inserted into the bearing to adjust the spring tension force. It is characterized in that it is fixed to the pulley so that it can rotate integrally.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention shown in FIGS. 1 and 2 will be described in detail. Reference numeral 1 is a front frame of a pachinko machine, and 2 is a mounting board of a ball-striking launcher fixed to the back surface of the front frame 1 with screws or the like. A mallet 4 is rotatably supported by a support shaft 3 on the rear surface of the central portion of the mounting substrate 2. Reference numeral 5 is a low-speed rotation motor fixed to the rear surface of the mounting substrate 2 via a motor mounting frame 6, and a cam 8 is fixed to a rotary shaft 7 of the motor 5. Reference numeral 9 denotes an arm which is integral with the mallet 4 and is provided with a roller 10 which can be engaged with the cam 8.
By engaging with the roller 10, the mallet 4 is rotated repeatedly. Reference numerals 11 and 12 denote stoppers fixed to the mounting substrate 2 for restricting the range of repetitive rotation of the mallet 4. 13 is a rotary shaft of an operation lever 21 described later,
A pulley 14 is fixed to the rear end of the pulley. Reference numeral 15 is a spring adjuster, to which a pull spring 16 having one end connected to the mallet 4 and a wire 17 having one end connected to the pulley 14 are connected at the other ends. A bearing 19 is fixed on the surface of the mounting substrate 2 coaxially with the spring tension adjusting pulley 14, the bearing 19 is fitted into a through hole 18 of the front frame 1 of the pachinko machine, and the mounting substrate 2 is fixed on the rear face of the front frame 1. Then, the grip 21 of the ball firing handle 20
When the shaft cylinder 23 is fitted into the through hole 18 and the shaft 13 of the operation lever 22 rotatably attached to the grip portion 21 is projected from the center of the shaft cylinder 23 and fitted into the bearing 19, the spring tension force is increased. It is coaxial with the adjustment pulley 14 and is fixed so that it can rotate integrally.

Next, the operation will be described. When the grip portion 21 of the ball firing handle 20 is gripped and the operation lever 22 is rotated, the spring tension adjusting pulley 14 is rotated, and the initial tension of the tension spring 16 can be freely adjusted. Then, when the micro switch is turned on and the motor 5 rotates, the cam 8 rotates and the mallet 4 rotates repeatedly, and the elasticity of the pulling spring 16 hits the pachinko ball to be launched onto the game board. And the operating lever 2
When the rotation of No. 2 is adjusted, the tension of the pulling spring 16 is adjusted via the rotary shaft 13, the spring tension adjusting pulley 14, and the wire 17, and the hitting force of the mallet 4 is arbitrarily adjusted to adjust the firing of the hit ball.

[0007]

According to the present invention, a mallet, a mallet rotation motor, a mallet tension spring, a spring tension force adjusting pulley and a bearing are fixed on the back surface of the substrate coaxially with the spring tension force adjusting pulley, and the bearing is fixed on the pachinko machine. Operation that fits into the through hole of the front frame of the machine, fixes the substrate to the back surface of the front frame, fits the barrel of the ball firing handle grip into the through hole from the front, and rotatably attaches to the grip. Since the shaft of the lever projects from the center of the shaft cylinder, is fitted into the bearing, and is fixed to the spring tension force adjusting pulley so as to be integrally rotatable, the shaft of the ball firing handle is fitted into the through hole of the front frame. When it is inserted into the bearing, it can be fixed accurately coaxially without using a spring tension force adjustment pulley and gauge mounted on the back side of the board.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of the present invention.

FIG. 2 is a front view of the substrate of FIG.

FIG. 3 is an external perspective view of a conventional device.

FIG. 4 is a partially cutaway plan view of FIG. 3 when attached.

[Explanation of symbols]

 1 Front Frame 2 Mounting Board 4 Mallet 5 Motor 8 Cam 13 Handle Shaft 14 Spring Tension Adjustment Pulley 16 Pull Spring 17 Wire 20 Ball Shooting Handle 21 Grip 22 Operation Lever

Claims (1)

[Claims] 1. A mallet, a mallet rotation motor, a mallet tension spring, a spring tension force adjusting pulley on a back surface of a substrate, and a bearing fixed on the surface coaxially with the spring tension force adjusting pulley, and the bearing is fixed on a front frame of a pachinko machine. Fit into the through hole, fix the board to the back of the front frame,
The shaft cylinder of the ball firing handle gripping part is fitted into the through hole from the front, and the shaft of the operation lever rotatably attached to the gripping part projects from the center of the shaft cylinder and is inserted into the bearing, and the spring tension adjusting pulley. A ball launching device for a pachinko machine, which is fixed so as to be integrally rotatable with the ball.