JPH0529743Y2 - - Google Patents

Description

[Detailed explanation of the idea]

【0001】

[Field of Industrial Application] The present invention relates to a reel unit for an electric slot machine. More specifically, the present invention relates to a reel unit equipped with a simple cooling fan that is rotated at appropriate times.

【0002】

2. Description of the Related Art Recently, electric slot machines in which a plurality of reels are rotated by electric motors have been widely used as slot machines for games.
Such slot machines usually use three to five reels with various symbols displayed on their outer peripheries. Each reel and a drive motor such as a stepping motor for driving the reel constitute a reel unit together with a boss for connecting the motor shaft and the reel.

[0003] In addition to the motor for driving the reels, the slot machine also includes a slot machine that is inserted into the slot machine,
In addition, various heat generating devices are built in, such as a hopper for the storage and discharge device for coins sent out from the slot machine as prizes, an electric circuit board for controlling the motor and solenoid, and its power source, etc. Conventionally, such electric slot machines have not been provided with any cooling means other than a ventilation fan that connects the inside and outside of the slot machine.

【0004】

[Problems to be solved by the invention] Recently, electric slot machines have been made smaller and more electronic in order to save space. As a result, many motors and other heat-generating devices and ICs are packed into a small frame, making it easy for ICs, hopper motors, reel motors, etc. to malfunction due to the heat.

[0005] The present invention was made in order to solve such problems, and the purpose is to provide a cooling means with a simple configuration inside an electric slot machine without adding a separate new drive motor. It is said that

[0006]

[Means for Solving the Problems] The reel unit of the electric slot machine of the present invention includes a reel driving motor, a boss held on the drive shaft of the motor so as not to rotate, and a reel unit that does not rotate with respect to the boss. The reel is characterized in that it has a reel connected in this way, and a vane plate concentrically interposed between the boss and the reel.

[0007]

[Operation] When a coin is inserted into the electric slot machine and the switch is turned on to start the game, all reels begin to rotate in the same direction at the same time. The rotation of the reels is sequentially stopped by the player's operation of a stop button.

[0008] The vane plate provided between the reel and the boss creates an air flow in one direction every time the reel rotates, circulating the air inside the electric slot machine and dissipating the heat generated from the IC and motor. Remove or dissipate to the outside.

【0009】

[Embodiment] Next, the reel unit of the present invention will be explained with reference to the drawings.

[0010] Figure 1 is a perspective view showing the state before assembly of an embodiment of the reel unit of the present invention, Figure 2 is a front view of the boss in the reel unit of Figure 1, and Figure 3.
1 is a vertical cross-sectional view of a main part showing the assembled state of the reel unit shown in FIG. 1, and FIG. 4 is a schematic cross-sectional view showing an example of an electric slot machine equipped with a plurality of reel units of the present invention.

[0011] In FIG. 1, 1 is a reel of an electric slot machine (for example, see FIG. 4). Normally, patterns such as fruits and animals are displayed on the outer peripheral surface of the reel 1 at equal intervals in the circumferential direction, but these are omitted in FIG.

[0012] Normally, one electric slot machine has three to five reels 1 arranged coaxially and in parallel. One reel 1 is connected to a motor such as one stepping motor 2 which is controlled to drive and stop the reel. reel 1
Bolt holes 4 are formed in the spokes 3 at equal intervals in the circumferential direction.

[0013] In FIG. 1, 5 is a blade plate having the same shape as a normal fan, and has bolt holes 6 corresponding to the bolt holes 4 formed therein. The vane plate 5 can be easily formed, for example, by press molding a metal plate such as aluminum or by injection molding a synthetic resin. By using this blade plate 5, there is an advantage that a fan means can be easily provided without changing the shape of each component of a conventional reel unit.

[0014] 7 is a drive shaft 8 of the stepping motor 2
This is a boss for connecting the blade plate 5 and the reel 1.

[0015] A disk-shaped flange portion 9 is integrally provided at one end of the boss 7, and a bolt hole 10 corresponding to the bolt holes 4 and 6 is formed in the flange portion 9. Note that the flange portion 9 has bolt holes 4,
Nut 1 screwed into screw 11 passing through 6 and 10
2, and a reinforcing rib 13 that can support the nut 12 so that it does not rotate is provided. In this way, the reel 1, the blade plate 5, and the boss 27 can be integrally connected by the screw 11 and nut 12.

[0016] Although the boss 7 and the nut 12 are shown as separate bodies in FIG. 1, the nut 12 may be fixed to the boss 7 by insert formation or the like, or a tap may be placed directly on the boss 7. Note that a pilot hole may simply be made on the boss 7 side, and a tapping screw or the like may be used as the screw 11.

[0017] The means for connecting the boss, the blade plate, and the reel is not limited to the flange portion or screw, and other means such as an adhesive may be used.

[0018] The cylindrical drive shaft 8 has a flat surface 14 parallel to the central axis formed as a torque transmission surface, so that the drive shaft 8 has a D-shaped cross section. The flat surface 14 may be formed at multiple locations.

[0019] A hole 15 into which the drive shaft 8 fits is formed in the boss 7. The hole 15 may be a through hole or a hole with a bottom. Furthermore, the boss 7 has a hole 1.
A notch 16 is provided along a plane including the central axis as a communication portion that communicates with the central axis. In the case of FIG. 1, a notch 16 that opens at the end face of the boss is used as a communication part due to the mold for forming the boss 7, but if it is possible to insert the set screw 17, For example, it may be a hole formed in the radial direction with respect to the central axis.

[0020] As shown in FIG. 2, a slit 18 is formed in the boss 7 in a direction that intersects with the notch 16. The slit 18 preferably has a width and size that allows a plate nut 19 employed as a nut member to be firmly press-fitted therein. Note that the plate nut 19 may be formed as an insert in the boss 7.

[0021] The boss 7 including the flange portion 9 is preferably integrally formed of a synthetic resin with high mechanical strength such as polycarbonate or polyacetal, and is made of reinforcing fibers such as glass fiber or carbon fiber or powdered filler. It is more preferable that the reinforcing material is included.

[0022] The respective parts are assembled, for example, in the following steps.

[0023] First, the reel 1, the blade plate 5, and the flange portion 9 of the boss 7 are fixed using the screw 11 and nut 12.

[0024] Next, as shown in FIGS. 2 and 3, the plate nut 19 is press-fitted into the slit 18, and the hole 15 is
Insert the drive shaft 8 inside. Flat surface 14 of drive shaft 8
are aligned so as to correspond to the flat surface 20 provided within the hole 15 (see FIG. 3). In addition to the flat surface 14, various other torque transmission surfaces such as serrations and key grooves can be selected as the torque transmission surface formed on the drive shaft 8, but a simple flat surface is preferable because it is easy to process.

[0025] After fitting the drive shaft 8 into the hole 15,
The set screw 17 is in the screw hole 2 of the plate nut 19.
1, and the tip of the set screw 17 is strongly pressed against the surface of the drive shaft 8, preferably the flat surface 14.

[0026] By connecting as described above, the drive shaft 8 and the boss 7, and the boss 7 and the vane plate 5
The reel 1 and the reel 1 are very firmly connected by the engagement between the flat surfaces 14 and 20 and the frictional force between the tip of the set screw 17 and the flat surface 14, thereby transmitting torque and preventing the reel from coming off.

Furthermore, since the boss 7 is made of synthetic resin, the inertial load in the rotation direction applied to the stepping motor 2 is reduced, and the rotation angle of the reel 1 can be controlled more accurately. Further, since the blade plate 5 constituting the fan means is fixed together with the reel 1 and boss 7 by screws 11 and nuts 12, the assembly work of the entire reel unit is simple. When arranging multiple reels 1 (see Figure 4), leave enough space between the reels 1 so that the reel that stopped first does not interfere with the air blowing action of the still rotating blade plate. is preferable.

FIG. 4 shows an example of an electric slot machine in which a plurality of reel units 22 configured as described above are arranged concentrically and in parallel.

[0029] The blade plates 5 provided on each reel unit 22 are preferably combined so that the air blowing directions are the same, thereby making it possible to obtain a large air blowing amount.

[0030] The air flow generated by the vane plate 5 circulates throughout the inside of the slot machine, cooling the hopper 23, the wiring board 24, etc.
It flows out to the outside through an appropriate ventilation opening 25 or the like. This suppresses the rise in temperature of ICs, motors, etc.

【0031】

[Effects of the invention] The reel unit of the present invention can provide a simple cooling means inside the electric slot machine without adding a new drive motor, etc., thereby improving the operation of the IC and motor. An excellent effect can be achieved in that defects can be prevented in advance.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the reel unit of the present invention before assembly.

FIG. 2 is a front view of a boss in the reel unit of FIG. 1;

FIG. 3 is a vertical cross-sectional view of a main part of the reel unit shown in FIG. 1 after assembly.

FIG. 4 is a schematic sectional view showing an example of an electric slot machine equipped with a plurality of reel units of the present invention.

[Explanation of symbols]

1...Reel 2...Stepping motor 5...Feather plate 7...Boss 8... Drive shaft 22...Reel unit.

Claims (1)

[Scope of utility model registration request] 1. A reel drive motor, a boss held so as not to rotate on the drive shaft of the motor, a reel connected so as not to rotate with respect to the boss, and a concentric space between the boss and the reel. A reel unit of an electric slot machine having an interposed blade plate.