JPS5846871Y2 - Ball launch force adjustment mechanism in pachinko machines - Google Patents

Description

[Detailed Description of the Invention] The present invention includes a ball-launching hammer arm mechanism that is equipped with a hammer arm that hits the ball with its tip head, one end of which is connected to the hammer arm, and the other end of which is connected to a cable and a spring force adjustment mechanism. The present invention relates to a ball launching force adjustment mechanism in a pachinko machine equipped with a ball launching device having a hammer arm spring connected to the operating handle side.

Conventionally used ball launch force adjustment mechanism for pachinko machines 1
As shown in FIG. 1, a hammer arm spring 3 has one end connected to a rotatably supported hammer arm 2, and one end of an adjustment plate 4 is connected to the other end of the hammer arm spring 3. The other end of this adjustment plate 4 is connected to an operating mechanism 6 such as an operating handle 7 via a cable 5, and the adjustment plate 4 has a plurality of adjustment holes 8 bored in its longitudinal direction. A retaining member 9 made of an engaging pin or the like formed on the other end of the mallet arm spring 3 or one end of the cable 5 is locked in any one of the plurality of adjustment holes 8, so that the mallet arm spring 3 It is constructed so that the tensile force can be adjusted.

However, in the conventional batted ball launch force adjustment mechanism, the spring force can be adjusted by simply selecting an arbitrary adjustment hole 8, so the spring force can be adjusted in stages. Hole 8
Since the distance between the
Further, it has a drawback that the engagement state between the adjustment hole 8 and the engagement member 9 is unstable.

The purpose of this invention is to create a pachinko machine that has a relatively simple configuration of the spring force adjustment mechanism, can be assembled quickly, and allows fine adjustment of the spring force to be performed accurately, easily and quickly, and with less trouble. This will become clear from the detailed description below with reference to the drawings.

2 and 3 show a spring force adjustment mechanism 11 according to the present invention.
is shown, and this spring force adjustment mechanism 11 is connected to the game board 12.
A movable member 15 is provided which includes a fixing member 13 fixed to the back surface and a bolt 14 implanted in the fixing member 13, and a movable member 15 having a flat plate-shaped portion 16 that comes into contact with the fixing member 13. A long hole 17 extending in the longitudinal direction is formed in the flat plate portion 16 of the movable member 15, and the bolt 14 of the fixed member 13 can be moved relative to the long hole 17. Further, this movable member 15 is formed with a bearing part 18, which extends from the upper end and the lower end of one side of the flat plate part 16 in the direction of the hammer arm spring 3, and has a U-shape when viewed from the front. A center shaft 21 of the pulley 19 is pivotally supported by the bearing portion 18, and the outer diameter of the pulley 19 is longer than the center shaft 21 at the U-shaped center portion of the bearing portion 19. It is formed close to the length of

For example, a cable 5 is wound around the pulley 19, one end of which is connected to the hammer arm spring 3, and the other end of which is connected to the operation bundle 7 side, and the fixed member 13 and the movable member 15 The above-mentioned bolt 1
The movable member 15 can be fixed at a desired position by screwing the wing nut 22 onto the movable member 4.

Therefore, the cable 5 is used by being inserted between the U-shaped bearing 18 and the pulley 19, and the cable 5 is prevented from falling off the pulley 19.

As shown in FIG. 4, the pole I 14 can be directly planted on the back surface of the game board 12, and furthermore, a guide member for the movable member 15 can be provided on the fixed member 13.

FIG. 5 shows a modification of the movable member 15 shown in FIG. A groove portion 28 having a width larger than the outer diameter and relatively shallow is formed at the end of the flat plate portion 26, and the bolt 14 moves in a direction perpendicular to its axis and is pulled out from the flat portion 26. Therefore, from this notch 29, the movable member 25 can be attached and removed with the wing nut 22 screwed onto the port I. 22 is loosened so that the movable member 25 can move, the wing nut 22 can engage with the end of the groove 28, so there is no risk of the movable member 25 falling off from the fixed member 13, and the spring force is reduced. The assembly of the adjustment mechanism is what makes the work easy.

Next, FIG. 6 shows a different embodiment of the spring force adjustment mechanism according to the present invention, and this spring force adjustment mechanism 31 has a fixed member 32 fixed to the back surface of the game board 12 and a movable member 41. The fixed member 32 has a bearing portion 33 formed at one end thereof, and a shaft 35 around which a coil spring 34 is wound is pivotally supported on the bearing portion 33.
A spring piece 36 is provided at one end of the coil spring 34 so as to apply a biasing force to the fixed member 32 side, and a pressing member 37 is provided at the tip of the spring piece 36 of this coil spring 34.
7 is biased toward the fixed member 32 side, and furthermore, sawtooth portions 38 are formed in the longitudinal direction on the surface of the pressing member 37 facing the fixed member 32 side, and the movable member 41 is The flat plate portion 42 has a serrated portion 43 that can engage with the serrated portion 38 of the pressing member 37, and a pulley 44
A U-shaped bearing portion 46 is formed on which a central shaft 45 of the shaft is pivoted.

It should be noted that the smaller the interval between the serrations of the serrated portions 38 of the pressing member 37, the smaller the minimum unit of spring force adjustment, that is, the finer adjustment can be made. If the distal end of the movable member 41 is formed to face in the direction of arrow A, and the distal end of the sawtooth of the movable member 41 is engaged with the serrated portion 38 of the pressing member 37 with the distal end of the sawtooth of the movable member 41 facing in the direction of arrow B, the movable member 41 can be aligned with the pressing member. 37, that is, with the movable member 41 in contact with the fixed member 32, it can be moved in the direction of arrow A, and the movable member 41 can be held at the moved position. It is.

Further, a cable 5 whose both ends are connected to the mallet arm spring 3 and the operating bundle 7 is wound around the pulley 44, and the cable 5 is securely connected between the pulley 44 and the U-shaped bearing portion 46. It is retained and there is no risk of it falling off from the Boo IJ-44.

As shown in FIG. 7, a microswitch 52 is attached to a fixed plate 51 fixed to the back surface of the game board 12, and a substantially L-shaped operating lever 54 whose lower end can come into contact with the switch piece 53 of this microswitch 52 is attached. is rotatably supported around its center by a shaft 55, and a long groove 56 is formed at the upper end of the operating lever 54, into which an operating pin 62, which will be described later, can engage.

An actuating member 61 for actuating the microswitch 52 is attached to the cable 5 wound around the pulley 19.44 of the adjustment mechanism 11.31, and an actuating pin 62 is attached to the actuating member 61. The actuating pin 62 is formed to protrude in a direction substantially perpendicular to the longitudinal direction, and the actuating pin 62 is connected to the actuating lever 54.
It is engaged with the long groove 56 of.

The microswitch 52 is used to turn on and off a deceleration motor (not shown).

According to the configuration of the present invention, the movable member 15 and By sliding 42 in the direction of arrow A, the tensile force of the hammer arm spring 3 can be increased, and by sliding them in the direction of arrow B, the tensile force of the hammer arm spring 3 can be decreased. A predetermined tensile force can be applied to the hammer arm spring 3 by tightening the wing screw 22 at a desired predetermined tensile force position or by biasing the pressing member 37 in the direction of the arrow mark.

Therefore, according to the spring force adjustment mechanism 11, the tensile force of the hammer arm spring 3 can be adjusted steplessly, easily and quickly, and the serrated portion 38
In this case, the spacing between the saw teeth can be finely adjusted.

Note that when the cable 5 is pulled in the direction opposite to the biasing force of the hammer arm spring 3 (arrow E) based on the rotation of the operating bundle 7,
An operating pin 62 of an operating member 61 attached to the cable 5
rotates the actuating lever 54 around the shaft 55, thereby actuating the switch piece 53 of the microswitch 52, turning on the microswitch 52, and then turning the operating bundle 7
When the rotation of the microswitch 5 is released, the operating member 61 returns to its original position due to the bias of the hammer arm spring 3, and the microswitch 5
2 is off, and the rotational drive of the above-mentioned deceleration motor is controlled on and off.

According to the present invention, the structure of the spring force adjustment mechanism is simple, and the assembly work can be performed easily and quickly. Also, the spring force can be easily finely adjusted, and the center force can be accurately obtained if desired. Done,
Furthermore, it is possible to obtain a batting ball launch force adjustment mechanism for a pachinko machine that is free from the risk of the rope wound around the pulley falling off and can prevent malfunctions.

In the above, the present invention was applied to an electric pachinko machine, but the present invention can also be applied to a manual pachinko machine without departing from the spirit of the present invention. It will be obvious that various modifications and variations can be made.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a spring force adjustment mechanism in a conventional pachinko machine, FIGS. 2 to 5 are explanatory diagrams showing a first embodiment of the spring force adjustment mechanism of the present invention, and FIG. FIG. 7 is an explanatory view showing the second embodiment of the spring force adjustment mechanism of the invention, and FIG. 7 is an explanatory view showing the operating state of a microswitch provided in relation to the cable. In the figure, 3... mallet arm spring, 5... rope,
6... Actuation mechanism, 11.31... Spring force adjustment mechanism, 13.32... Fixing member, 14.
...pol), 15,25.41...movable member, 17°27...long hole, 18.46...
...Bearing section, 19.44...Pulley, 22.
...Natsuto Butterfly.

Claims (1)

[Scope of utility model registration request] A ball-launching hammer arm mechanism equipped with a hammer arm that hits the ball with its tip head, and a hammer arm spring that has one end connected to the hammer arm and the other end connected to an actuating mechanism via a cable and a spring force adjustment mechanism. In the ball launcher, the spring force adjustment mechanism includes a fixed member fixed to the back side of the game board, a movable member slidably provided on the fixed member, and a fixing means for the movable member. The movable member includes a flat plate portion that comes into contact with the fixed member;
It has a bearing part formed to extend substantially horizontally from the upper and lower ends of one side of the flat plate part, and a pulley pivotally supported by the bearing part, and a cable is wound around the pulley, The tensile force of the hammer arm spring can be adjusted according to the attachment position of the flat plate portion of the movable member with respect to the fixed member, and the cable is provided with a microswitch for actuating a deceleration motor of the actuating mechanism. A ball launching force adjustment mechanism for a pachinko machine, characterized in that an operating member having an operating pin is attached.