JPH0321265Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an improvement of a ball hitting force adjustment mechanism in a ball firing device of an electric pachinko game machine.

[Conventional technology]

Generally, pachinko gaming machines are widely known in which the starting position of a batting rod that periodically swings by electric power is changed by a rotating cam that rotates in conjunction with an operating handle to control the batting force. That is, the third
As shown in the figure and FIG.
By operating the operating handle c in 1 and adjusting its angular position within a certain range, the rotating cam d, which rotates in conjunction with the handle c, changes its angular position and is periodically oscillated by electric power. This is to adjust the starting position of the batting rod g that moves to hit and fire the pachinko ball f on the firing rail e. For example, when the rotating cam d is rotated to the position d' shown by the dashed-dotted line. In this case, the starting position of the batting rod g is retracted to g', the range of its swing increases, and the batting force increases.

[Problem that the invention attempts to solve]

However, as shown in FIG. 5, in the ball hitting force adjustment mechanism of this type of pachinko game machine, the rotating cam d is
The relative angle of the shaft can be adjusted via the engaging cylinder i with respect to the handle shaft h which is connected to the operating handle c (see Fig. 3) and is freely rotatably inserted into the fixed cylinder part b2 of the handle cover b. In other words, since the operating handle c, which the player always holds, and the rotating cam d are directly connected by the handle shaft h, the ball hitting rod g (see Figure 2) is attached to the rotating cam d. ) collides with each other and propagates to the operating handle c via the handle shaft h, resulting in an unfavorable feeling of use. Furthermore, in recent years, measures have been taken to absorb the vibrations caused by the above-mentioned impact, such as making the rotating cam d made of an elastic material, but this does not necessarily provide a sufficient damping effect.

The present invention has been developed in view of the above-mentioned problems for the purpose of preventing the impact of the ball from being transmitted to the operating handle.

[Means for solving problems]

In order to achieve the above object, the ball hitting force adjustment mechanism of the pachinko game machine of the present invention is such that a rigid cylinder is integrally fixed to the handle cover fixed to the front frame of the pachinko game machine, and the inside periphery of the rigid cylinder is fixed. A handle shaft that rotates according to the operating handle is rotatably inserted loosely therein, and a rotary cam is slidably and rotatably inserted around the outer periphery of the end of the rigid cylinder protruding from the rear end of the handle cover, The rotary cam and the handle shaft are engaged with each other in a state in which the relative angle of the pivots can be adjusted via a clutch member which is fitted onto the handle shaft so as to be movable in the axial direction and is elastically biased in the axial direction by a spring. We decided to combine them into a structure.

[Effect]

According to the above configuration, the rotating cam that the swinging ball hitting rod collides with is not attached to the handle shaft connected to the operating handle, but is integrally attached to the handle cover, which is a member fixed to the front frame of the pachinko game machine. Since the rotary cam is attached to a rigid cylindrical body that is internally fixed, the impact generated on the rotary cam is blocked by the rigid cylindrical body and is hardly transmitted to the handle shaft and ultimately to the operating handle.

〔Example〕

Next, a preferred embodiment of the pachinko game machine according to the present invention will be described with reference to the drawings.

Fig. 1 is an exploded perspective view of this embodiment, and Fig. 2 is an assembled sectional view of the same essential parts. A handle cover consisting of a portion 2 and a gripping portion 3; 4 a rigid cylinder made of metal that is internally fixed integrally to the fixed cylinder portion 2; and 5 inserted freely into the rigid cylinder 4 so as to be rotatable. A handle shaft 6 is pivotally attached to the tip (not shown) of the handle shaft 5 and is clamped to the grip portion 3 so that the rotation angle thereof is set to such an extent that the player can operate it with one hand. 7 is a rotating cam made of rubber-like elastic material and has a rib 7a for the purpose of buffering;
Reference numeral 8 denotes a cam inner cylinder which is integrally fitted and fixed to the inner periphery of the shaft hole of the rotary cam 7 and is rotatably inserted into and out of the rigid cylinder 4, and 9 is an outer periphery of the cam inner cylinder 8. A rear end portion 5a of the handle shaft 5 that protrudes from the rigid cylinder body 4 and has a substantially D-shaped cross section is formed with inward occlusal teeth 9a that interlock with the gear-shaped occlusal teeth 8a formed on the rear end portion 5a. A clutch member 10 has a substantially D-shaped shaft hole 9b which is movably engaged in the axial direction. This is a coil spring that is supported and elastically urges the clutch member 9 in the axial direction.

According to this embodiment having the above configuration, the rotary cam 7 is integrally constructed with the cam inner cylinder 8 and has a buffer structure.
However, since it is fitted onto the rigid cylinder 4 that is integrated with the handle cover 1 fixed to the front frame of the pachinko machine, the swinging ball hitting rod (see symbol g in Figure 4) is The impact caused by the bump is attenuated by the buffering function of the equally rotating cam 7 itself, which is made of an elastic material and has ribs 7a formed therein.
Furthermore, the rigid cylindrical body 4 prevents it from propagating to the handle shaft 5, which is loosely inserted into the inner periphery of the rigid cylindrical body 4. Further, the propagation of the impact to the handle shaft 5 via the cam inner cylinder 8 and the clutch member 9 is absorbed by the coil spring 10. In addition, according to this embodiment, the cam inner cylinder 8, which is integral with the rotary cam 7, and the clutch member 9, which is prevented from rotating with respect to the handle shaft 5, are formed on both the members 8, 9. The occlusal teeth 8a and 9a engage with each other, and the rotating cam 7 is configured to engage with the handle shaft 5 at a required relative angle. In order to adjust the ball hitting force by changing the ball hitting force, pinch the knob 9c formed on the outer periphery of the clutch member 9 with your fingers, and move the clutch member 9 in the axial direction as if pulling it out from the handle shaft 5. The occlusion of the occlusal teeth 8a, 9a is released, and the angle scale 7 displayed on the rotary cam 7
b and the pointer 9d of the clutch member 9 against this, slide the rotary cam 7 at an appropriate angle, and then release your finger from the knob 9c. 8a and 9a interlock with each other to maintain the adjusted relative angle. Therefore, the engagement of the rotary cam 7 with the handle shaft 5 does not depend on the pressing force of the coil spring 10, and the load on the coil spring 10 only needs to be relatively small, making the above-mentioned adjustment work extremely easy. can be done.

[Effect of idea]

As described in detail above, the ball hitting force adjustment mechanism of the pachinko game machine of the present invention does not involve pivoting the rotating cam to the handle shaft connected to the operating handle, but rather integrally attaching the rotating cam to the handle cover so as to surround the outer periphery of the handle shaft. Since it is constructed by being fitted externally to a rigid cylindrical body that is fixed to the interior, it is possible to suppress the vibration of the batting rod hitting the operating handle when operating the pachinko game machine, and eliminate the discomfort caused to the player. The practical effects are extremely large.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing a preferred embodiment of the ball hitting force adjustment mechanism for a pachinko game machine according to the present invention, Fig. 2 is an assembled sectional view of the same main parts, and Fig. 3 is an operation of a general pachinko game machine. FIG. 4 is a rear view of the ball launcher, and FIG. 5 is a cross-sectional view of a main part showing an example of a ball hitting force adjustment mechanism of a conventional pachinko game machine. 1... Handle cover, 4... Rigid cylindrical body, 5...
... Handle shaft, 6 ... Operation handle, 7 ... Rotating cam, 9 ... Clutch member, 10 ... Coil spring.

Claims (1)

[Scope of utility model registration request] In a pachinko game machine in which the ball hitting force is freely controlled by periodically swinging the ball hitting rod using electric power and changing the starting position of the ball hitting rod using a rotary cam that follows the operating handle. A rigid cylindrical body is integrally fixed internally to a handle cover fixed to the front frame of the pachinko game machine, and a handle shaft that rotates in accordance with the operating handle is freely inserted into the periphery of the rigid cylindrical interior. At the same time, the rotary cam is slidably and rotatably fitted onto the outer periphery of the rigid cylinder end protruding from the rear end of the handle cover, and the rotary cam and the handle shaft are connected to the handle shaft so as to be movable in the axial direction. A ball hitting force adjustment mechanism for a pachinko game machine, characterized in that the mechanism is engaged with each other so that the relative angle of the shafts can be adjusted through a clutch member that is inserted externally and elastically biased in the axial direction by a spring.