JPS6025979B2 - Pachinko machine ball launch force adjustment device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a ball launching force adjustment device for a pachinko machine.

2. Description of the Related Art As a conventional ball launch force adjustment device for a ball punch in a pachinko machine, a type is known in which the tension of a spring attached to a ball is variably controlled by an adjustment device.

However, with this type, the expansion and contraction of the spring that accompanies the bouncing motion of the ball punch is transmitted to the operating shaft of the adjustment device, so a varying amount of tension is applied to the operating shaft each time the ball punch hits, making the game more enjoyable. The drawback is that it is difficult for a person to hold the operating ball in a fixed position.

The present invention eliminates the above-mentioned drawbacks, and makes it possible to adjust the ball launch force of the batting village by varying the amount of operation of the batting village by displacing the driving cam that moves the batting pestle to the ball-hitting position, and the driving cam By preventing the adjusting device that displaces the ball from being displaced by the driving force of the driving cam, the ball launching force of the pachinko machine can be easily operated by the player without the adjusting device being influenced by the spring and the driving cam. The object is to provide an adjustment device.

In order to achieve this object, the ball launching force adjustment device for a pachinko machine of the present invention includes a ball hitting pestle biased by a spring, and a drive that acts to move this hitting ball village to a position where the ball can be hit in opposition to the above-mentioned 'imitation bias'. cam, wherein the ball-hitting cam surface of the drive cam is further inclined in the direction of the rotation axis of the drive cam, and the drive cam is made freely movable in the direction of the rotation axis by an adjustment device; A rotating shaft surface of the drive cam is in contact with the adjustment device.

Embodiments of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a batting ball, which is fixed to a shaft 6 which is fixed by a bearing 5 to a middle plate 4 which is attached to a base plate 2 via grooves 3, 3.

An arm 8 is fixed to one end of this shaft 6, and a roller 7 serving as a cam follower is fixed on the arm 8. It is considered to be a slope. A spacer 1 is attached to the substrate 2 and the middle plate 4.
A motor 4 is fixed to a motor mounting plate 13 that is attached via 1, 1 1 and spacers 12, 12, and is slidable in the axial direction on a drive cam support shaft 16 fixed to a motor shaft 15 of a motor 14. A drive cam 9 is attached so as to rotate together.

17 is a flange 18 of the drive cam 9 and the drive cam support shaft 16
A coil spring provided between the drive cam 9 and the drive cam 9 urges the drive cam 9 toward the bag. Reference numeral 19 denotes an adjustment device, which includes a handle 20, an operating shaft 21, a slope cam 22 fixed to the operation shaft 21, and a pawl 24 interposed between the slope 23 of the slope cam 22 and the drive cam 9; The operation shaft 21 is parallel to the axis of the drive cam 9, and its ball 24 is in contact with the rotating shaft surface of the drive cam 9.

The angle of this slope 23 is such that the slope cam 22 does not rotate due to the pressing force of the ball 24.

25 is a bearing of the operating shaft 21 attached to the base plate 2; 26 is a front frame that supports the base plate 2; 27 is a decorative plate attached to the front frame 26; 28, 28 are rubber stoppers that engage with the ball hitting area 1;
Reference numeral 9 denotes a tension spring that biases the ball hitting village 1 to make a bullet.

The ball-hitting cam surface 1 of the drive cam 9 changes the distance from the rotation axis in a direction around the rotation axis of the drive cam 9 which acts on the ball-hitting village 1 to a position where a ball can be hit, and in addition to the above-mentioned direction, in the axial direction of the rotation axis. It is sloping.

At this time, the oblique angle is set such that the driving cam 9 does not move in the rutting direction due to the pressing force of the roller 7. Next, the effect will be explained.

When a switch is properly turned on to start a pachinko game, the motor 4 rotates, and the rotation of the motor shaft 15 is transmitted to the drive cam 9 via the drive cam support shaft 16.

When the drive cam 9 rotates, the ball-hitting cam surface 1 changes around the rotation axis so that the distance from the rotation axis gradually increases.
The roller 7 attached to the arm 8 is pushed by the river.
The ball hitting shaft 1 connected to the arm 8 by the shaft 6 is rotated about the shaft 6 against the bias of the tension spring 29, and the driving cam 9 is further rotated so that the terminal end of the ball hitting cam surface 10 is rotated. When the contact between the ball and the roller 7 ends, the ball hitting village 1 releases the tension spring 2.
It is rotated vigorously by the biasing force 9 and fires a pachinko ball at an appropriate position. At that time, the rubber stoppers 28, 2
8 comes into contact with the batting ball 1 and assists its movement. Batting pestle 1
When adjusting the ball launch force of the ball, by rotating the handle 20 of the adjustment device 19, the slope cam 22 is rotated via the operating shaft 21.
rotates, and the ball 2 is rotated by the slope 23 which is the cam surface.
The drive cam 9 moves in the direction of the ball via the shaft 4.

That is, when the slope 23 of the slope cam 22 moves toward a higher place, the drive cam 9 is pressed through the ball 24, the drive cam 9 moves against the coil spring 17, and the ball hitting cam surface 10 The contact surface with the roller 7 attached to the arm 8 connected to the ball hitting village 1 is displaced in the direction where the distance from the axis of the drive cam 9 is greater, so that the amount of movement of the arm 8, that is, the amount of movement of the ball hitting pestle 1 is reduced. As the ball size increases, the firing power of the pachinko ball by the batting ball village 1 increases.

When the slope 23 of the slope cam 22 moves toward a lower position relative to the ball 24, the drive cam 9 is pushed back on the drive cam support shaft 16 by the coil spring 17, and the ball hitting cam surface 1
Roller 7 attached to arm 8 connected to Kawama batting village 1
The contact surface of the pachinko ball is displaced toward the smaller distance from the axis of the drive cam 9, the amount of movement of the ball hitting village 1 becomes smaller, and the force with which the ball hitting village 1 launches the pachinko ball decreases.

At this time, the force of the ball hitting village 1 that is pulled by the tension spring 29 to rotate becomes a pressing force of the roller 7 against the driving cam 9 via the arm 8, and this pressing force is applied to the driving cam 9.
Because of the slope of the ball-hitting cam surface 10, a component force is generated in the axial direction of the drive cam 9, but since the angle of the slope is set to generate a frictional force greater than this component force, the drive cam 9 does not move.

Furthermore, for some reason, the drive cam 9 moves and the ball 2
4 to press the slope 23 of the slope cam 22, and even if this pressing force generates a rotation component of the slope cam 22, the angle of the slope 23 is adjusted so that the slope cam 22 will not rotate due to a frictional force greater than this component. is set, the rotational force is applied to the operating shaft 21.
There is no transmission between the two handles through the handle, and there is no effect compared to conventional ones in which the expansion and contraction of the spring accompanying the spring action of the ball is transmitted to the operating shaft of the adjustment device. be. As described above, the ball launching force adjustment device for a pachinko machine of the present invention includes a ball hitting pestle biased by a spring,
and a drive cam that acts on the ball hitting position to a ball hitting possible position against the imitation bias, and the ball hitting cam surface of the driving cam is further tilted in the direction of the rotational line of the driving cam, and In a pachinko machine in which the drive cam is movable along the rotational axis by an adjustment device, the end surface of the rotation shaft of the drive cam is in contact with the adjustment device, so that the adjustment device includes a spring and a drive cam. This allows the player to reliably and easily hold the adjustment device in a fixed position without being affected by the effects of

[Brief explanation of drawings]

FIG. 1 is a side sectional view of the main part of the embodiment of the present invention, FIG. 2 is a back sectional view of the same, FIG. 3 is a plan sectional view of the same, and FIG. 4 is a side sectional view of the same at another position. It is. 1... Batting village, 9... Drive cam, 10
...Ball hitting cam surface, 16...Cam support shaft, 17...Coil spring, 19...Adjustment device, 20...Handle , 21...Operating shaft, 22...Slope cam, 23...Slope, 24...Ball, 29...Tension spring. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1 A ball-striking rod biased by a spring, and a drive cam that operates the ball-striking rod to a ball-striking position against the bias of the spring, and the ball-striking cam surface of the drive cam further includes a ball-striking cam surface that In a pachinko machine, the drive cam is tilted in the direction of the rotation axis of the cam, and the drive cam is made movable in the direction of the rotation axis by an adjustment device, wherein an end surface of the rotation shaft of the drive cam is in contact with the adjustment device. A ball launching force adjustment device for a pachinko machine, characterized by the following.