JP2019154595A - Game machine - Google Patents

Abstract

To provide a game machine capable of preventing tooth skipping of a belt even if a desired motor drive performance is achieved with a reduced tensile force of the belt for moving a movable body.SOLUTION: A game machine of the present invention includes a driving pulley 124, a driven pulley, and a belt 125 that is stretched between the driving pulley 124 and the driven pulley. When the driving pulley 124 is rotated by the motor and the belt 125 is moved, a movable body attached to the belt 125 is moved. The game machine includes a pressing member 106 having an action portion 130 that faces the belt 125 and that is for pushing the belt 125 back toward the driving pulley 124. The tooth skipping of the belt 125 is prevented by the pressing member 106.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a gaming machine, and more particularly to a gaming machine capable of reciprocating a movable body such as a movable accessory by belt driving.

  In gaming machines such as pachinko machines and slot machines in recent years, an accessory that reciprocates in front of the gaming machine is provided in conjunction with various effects displayed on the liquid crystal display unit. Such a movable accessory (production member) can reciprocate in the vertical direction and the left-right direction, and a drive mechanism that enables such reciprocation generally includes a drive pulley driven by a motor, It is comprised by a driven pulley and the belt spanned between these pulleys. In this case, the movable accessory is attached to the belt, and when the driving pulley is rotated (forward / reverse rotation) by the motor and the belt is rotated, the movable accessory reciprocates along the guide member. Thus, for example, the player comes out or hides from a position where the player can visually recognize.

  In such a movable accessory driving mechanism, the belt is generally formed as a flexible timing belt (endless belt with gears) in which a number of irregularities are sequentially formed along the longitudinal direction of the belt. Therefore, this belt rotates without slipping with respect to the driving pulley and the driven pulley by meshing with teeth formed on the outer peripheral surfaces of the driving pulley and the driven pulley. For this reason, if the belt tension is weakened and loosened, and the amount of floating of the belt relative to the pulley exceeds the meshing tooth of the pulley and the belt, tooth skipping occurs.

  In relation to such a problem, for example, Patent Document 1 discloses a pinion gear and a rack gear attached to a movable accessory as a countermeasure against tooth skipping in a movable accessory driving mechanism. In a structure in which a movable accessory can be moved by meshing with each other, a technique is disclosed in which a guide rail is provided on the opposite side of the rack gear to prevent tooth skipping that may occur between the pinion gear and the rack gear.

JP 2014-76181 A

  By the way, in the above-described movable accessory driving mechanism including the driving pulley, the driven pulley, and the flexible belt, the tension of the flexible belt affects the driving performance (torque) of the motor that rotates the driving pulley. Therefore, in order to obtain a desired motor driving performance, it is important to maintain the belt tension within a predetermined range.

  In particular, when the motor that rotates the drive pulley is changed from a conventional stepping motor to a DC brushless motor in order to increase the speed of belt movement, a load (that is, belt tension) that the DC motor acts on the motor shaft. Therefore, the belt tension should be adjusted so that the motor speed does not decrease due to excessive load on the motor shaft as the belt tension increases (to maximize the high-speed performance of the DC brushless motor). It is more important than ever to keep the load acting on the motor shaft properly without holding it too strong, but if the belt tension is too weak, the belt will loosen, as described above. Tooth skipping easily occurs.

  In particular, when the movable accessory moves to the vicinity of the motor by driving the belt, a twisting force acts on the belt portion located between the motor and the movable accessory, and tooth skipping may occur. Increases nature. Therefore, in such a flexible belt, it is necessary to take some measures to prevent the tooth skipping, but it is not possible to adopt the gear skipping measure of the rack gear of Patent Document 1 without tension as it is. A new tooth skip prevention mechanism is urgently required. Of course, the problem of tooth skipping due to the decrease in the tension of the flexible belt is not limited to DC brushless motors, but also applies to motors other than DC brushless motors such as stepping motors. The problem is not limited to the above, and is a problem that applies to all movable bodies of the gaming machine that is moved by belt driving.

  The present invention has been made in view of the above circumstances, and provides a gaming machine capable of preventing occurrence of tooth jumping of a belt even if a desired motor driving performance is realized by suppressing tension of a belt that moves a movable body. Objective.

In order to achieve the above object, the present invention comprises a drive pulley driven by a motor, a driven pulley, and a belt stretched between the drive pulley and the driven pulley, and the drive pulley is driven by the motor. Is a gaming machine in which a movable body attached to the belt is moved by rotating the belt and moving the belt,
A pressing member having an action portion for facing the belt and pushing the belt back toward the pulley is provided.

  In the present invention, since a pressing member having an action portion for pressing the belt back to the pulley side is provided facing the belt, the pressing member can be used even if the belt tension is reduced to achieve a desired motor driving performance. The occurrence of tooth skipping of the belt can be reliably prevented by the action portion. This is particularly beneficial when a DC brushless motor with a speed change according to a load (that is, belt tension) acting on the motor shaft is employed as a pulley driving motor in order to increase the speed of belt movement. That is, when the motor speed is increased by suppressing the belt tension so that an excessive load is not applied to the motor shaft (to maximize the high speed performance of the DC brushless motor), Even if it is lifted and separated, it is pushed back to the pulley side by the action part of the pressing member and the floating is physically suppressed, so that the occurrence of tooth skipping is reliably prevented.

  In the above configuration, the movable body that is moved by the belt drive may be, for example, a movable accessory (effect member that reciprocates on the front surface of the gaming machine in conjunction with various effects displayed on the liquid crystal display unit of the gaming machine. However, it is not limited to this. Further, it is preferable that the movable body is guided in the belt extending direction by a guide rod or the like by the belt driving.

  Moreover, in the said structure, it is preferable that the pressing member is movable so that the distance between an action part and a belt may be changed. Such a pressing member can change the distance between the working portion and the belt by moving itself, and accordingly appropriately corresponds to a possible tooth jump generation mode according to the set tension of the belt. Can do. In this case, it is preferable that fixing means for fixing the pressing member at an appropriate position where tooth skipping can be suppressed is further provided.

  Further, in the form in which the pressing member can move as described above, it is preferable to provide guide means for guiding the movement of the pressing member so that the movement can be performed stably and smoothly. In this case, for example, a support member that supports the pressing member may be provided, and the pressing member may be held by the support member with a predetermined play in the belt extending direction, for example.

  In the above configuration, the action portion of the pressing member that pushes back the belt toward the drive pulley may be configured as a roller that is rotatably supported by the pressing member. In this case, the roller preferably has a friction coefficient as small as possible. According to this, since the load (load in the rotational movement direction of the belt; load at the time of belt collision) acting on the belt by the rotation of the roller can be released, tooth skipping prevention is performed without hindering the rotational movement of the belt. Can do. Of course, the action part is not limited to the roller, and can be arbitrarily set, for example, a protrusion-like one formed integrally with the pressing member.

  According to the gaming machine of the present invention, the pressing member having the action part for pushing the belt back to the pulley side is provided so as to face the belt, so that the desired motor driving performance can be realized by suppressing the belt tension. However, it is possible to reliably prevent the tooth jumping of the belt by the action portion of the pressing member.

1 is an overall perspective view showing an example of a gaming machine according to an embodiment of the present invention. It is a perspective view of the upper door of the gaming machine of FIG. It is a perspective view of the shutter apparatus arrange | positioned at the rear side of a display window. It is a perspective view of the principal part which comprises the shutter apparatus of FIG. It is a top view of a drive mechanism. It is a perspective view which expands and shows the component surrounding a drive pulley in the state in which the pressing member was attached with respect to the support member. It is a perspective view which expands and shows the component surrounding a drive pulley in the state in which the pressing member was isolate | separated. It is a perspective view of the pressing member simple substance which shows the back (inner side) of the pressing member by which the roller as an action part is pivotally supported. It is a principal part expanded horizontal sectional view which shows the state in which the action part was opposed to the belt. It is a principal part expanded horizontal sectional view which shows the attachment state in which the pressing member with respect to a support member is movable. It is a perspective view which shows the back surface (inner side) of the pressing member which concerns on the modification in which the protrusion as an action part is formed. FIG. 12 is an enlarged cross-sectional view of a main part showing a state in which the protrusion of FIG. 11 faces the belt.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Although the present embodiment will be described by taking the case where the present invention is applied to a slot machine which is one of gaming machines as an example, the present invention is not limited to the slot machine but is applied to other gaming machines such as pachinko gaming machines. May be.
In the following description, basically, “front and rear” means that when there is a player on the front side of the slot machine, the player side is “front”, the slot machine side is “rear”, and “up and down” Means the top side of the slot machine is “up”, the bottom side is “down”, “left and right” means the left hand side of the player who plays the slot machine means “left”, and the right hand side means “right” To do.

First, a schematic configuration of a slot machine M to which the invention is applied will be described.
FIG. 1 is a front view showing the slot machine M. FIG.
The slot machine M includes a housing 1, and the housing 1 includes a bottom plate, left and right side plates, a top plate, and a back plate, and a box having a front opening that opens to the front side of the housing 1. It is formed into a shape. On the upper surface of the bottom plate, there are provided a power supply unit incorporating a power supply device for supplying power to each component, a hopper unit as a payout device for storing medals and paying out medals.

Further, a front door 3 that closes the front opening of the housing 1 so as to be openable and closable is provided on the front of the housing 1, and the front door 3 closes an upper portion of the opening so as to be openable and closable. The door 30 and the lower door 40 which obstruct | occludes so that opening and closing of the lower part of the said opening part are provided.
An exchange unit (not shown) is detachably provided in the housing 1. This exchange unit includes a frame that is a metal frame assembled in a substantially rectangular parallelepiped shape, a reel unit supported by the frame, and a substrate unit fixed to the frame.

  The reel unit includes three stepping motors provided on the frame, and three rotary reels fixed to the output shaft of each stepping motor. The board unit is a board case in which a board having electronic components such as a CPU, ROM, RAM, and I / O is stored in a board case. The board unit functions as a game control device for controlling the game of the slot machine M.

As shown in FIG. 1, a display window 31 is provided below the upper door 30. The display window 31 is inclined with respect to a horizontal plane so that the upper side is toward the rear side, and the three rotating reels are provided in a horizontal row in the back of the display window 31. A plurality of types of symbols are arranged on the outer peripheral surface of each rotating reel, and when the rotating reel stops, three symbols per reel are displayed through the display window 31. In the slot machine M, a total of five winning effective lines, which are three horizontal and two diagonal, are set.
Then, it is displayed whether or not the winning combination is won by a combination of symbols stopped on the winning winning line when the three rotating reels are stopped.

  In addition, a display window 32 larger than the display window 31 is provided substantially vertically above the upper door 30. The display window 32 is provided for viewing the display surface of the image display device provided on the upper door 30. The image display device has a liquid crystal display panel, and in the image display device, an image for presentation in a gaming machine is displayed on the display surface.

In addition, a horizontally long illumination device 33 is provided in the upper central portion of the display window 32 of the upper door 30 for performing notification and effects.
In addition, horizontally long illumination devices 34, 35, and 34 are provided between the display window 32 and the display window 31 so as to perform notifications and effects, and so on.

In addition, an effect panel 61 is provided on both the left and right sides of the display window 31 to perform notifications and effects, and an effect button 62 is provided on the right effect panel 61. The effect button 62 is pressed by the player. When pressed, the effect button 62 changes the aspect of the effect image displayed on the image display device that can be seen through the display window 32, for example. In addition to raising awareness of participation, it is designed to enhance interest. For example, an effect image displayed on the image display device can be selected in conjunction with the operation of the effect button 62. Note that the arrangement of the effect buttons 62 is not limited to this, and may be provided at a position where the player can perform a pressing operation.
Furthermore, illumination devices 37 for performing notifications and effects are provided on the left and right sides of the upper door 30, respectively.

  Further, the upper door 30 is configured to open and close the upper opening portion of the housing 1 by being rotatably connected to the replacement unit provided in the housing 1 via a hinge. Further, the lower door 40 is pivotally connected to the housing 1 via a hinge so as to open and close the lower opening portion of the housing 1.

  The slot machine M has a separate housing type structure, and when the model is exchanged at an amusement store, the exchange unit to which the upper door 30 is rotatably attached is exchanged. When the model is changed, the casing 1, the lower door 40, the power supply unit, the hopper unit, and the like in the casing 1 remain attached to the island facility of the amusement store and are not exchanged. Further, the slot machine M is not limited to the separated casing type, and may replace the entire slot machine when changing models. In this case, the front door 3 may have an integrated structure that does not divide the upper door 30 and the lower door 40. Moreover, when dividing into the upper door 30 and the lower door 40, you may attach the upper door 30 to the side plate of the housing | casing 1 so that rotation is possible via a hinge.

  Further, the lower end portion of the upper door 30 is provided with an engaging portion that protrudes rearward from the front surface of the lower door 40 and downward from the upper end of the lower door 40, and the upper door 30 is closed when the lower door 40 is closed. The structure cannot be opened.

  In addition, a medal payout port for discharging medals from the inside of the slot machine M and a medal tray 43 for storing medals discharged from the medal payout port are formed at the lower part of the lower door 40. . An operation unit 50 for operating the slot machine M is provided on the upper portion of the lower door 40, and a liquid crystal display panel 45 is attached between the operation unit 50 and the medal tray 43. In addition, lamps 33d are provided on the left and right sides of the liquid crystal display panel 45 for performing notifications and effects.

  The operation unit 50 includes a settlement switch 52 for paying out credited medals, a start lever 53 for starting a game, three stop buttons 54 for stopping the rotation of each of the three rotating reels, and a medal The medal slot 42 for inserting (game media), the reject button 55 for clearing the clogged medals in the medal path below the medal slot 42, and operated when betting the maximum three medals. In addition to a MAX bet button 56 (bet button), an operation panel 57 for selecting a game effect and the like, and a display unit 58 are provided. The operation panel 57 is disposed at a substantially central portion in the width direction (left-right direction) of the operation unit 50, and a display unit 58 is disposed on the right side with the medal slot 42 and the reject button 55 interposed therebetween. The operation panel 57 includes a cross key for selecting effects, a determination button, a cancel button, and the like.

The MAX bet button 56 is disposed so as to face upward, and is formed so as to be pushed downward from above. The force required to operate the MAX bet button 56 (hereinafter referred to as “operation force”) is about 1.0 N. The MAX bet button 56 includes a pressing portion and an elastic member. The pressing portion is a member that is pushed in by a player's finger or the like, and is formed of resin or the like. Further, the pressing portion is biased upward by the elastic member. The elastic member is a member formed so as to urge the pressing portion and elastically deform against the urging force when the pressing portion is pushed in, and a spring or the like is used.
Moreover, the stop button 54 is arrange | positioned so that it may face the front, and it is formed so that it may be pushed toward back from the front. The operating force of the stop button 54 is about 0.7N. That is, the operating force of the stop button 54 is smaller than the operating force of the MAX bet button 56.

Further, the effect button 62 described above is disposed so as to face forward, and is formed so as to be pushed backward from the front. The operation force of the effect button 62 is greater than or equal to the operation force of the MAX bet button 56. The operating force of the effect button 62 is, for example, about 3.0N.
Similarly to the MAX bet button 56, the stop button 54 and the effect button 62 include a pressing portion and an elastic member, and the pressing portion of the stop button 54 and the effect button 62 is urged forward by the elastic member. ing.
Further, as described above, the operating force of the MAX bet button 56 is about 1.0N. That is, it is necessary to push the pressing portion to elastically deform the elastic member and move the pressing portion to a position where a switch ON signal (signal indicating that the button has been pressed) is output from the sensor provided in the MAX bet button 56. The load (sensor detection load) is about 1.0N. In the gaming machine of the present embodiment, a photo sensor is used as the sensor, but other sensors may be used as long as the pressing of the pressing portion can be detected. For example, when the photo sensor detects that the light traveling from the light emitting element to the light receiving element has changed due to a detection object that is moved by pressing the pressing portion, the photo sensor outputs a switch ON signal. When a load larger than the sensor detection load is applied, the pressing portion further moves while elastically deforming the elastic member, and comes into contact with the mechanical stopper and stops. The same applies to the stop button 54 (operating force about 0.7 N) and the effect button 62 (operating force about 3.0 N).

  Here, a basic game flow in the gaming machine of the present embodiment will be described. When the player depresses the MAX bet button 56, a credited medal is inserted (betted), and the game can be started. Then, when the player performs an operation of depressing the start lever 53 as an operation for starting the game, the rotating reel starts to rotate, and the depressing operation of the stop button 54 is effective when the rotational speed of the rotating reel rises to a predetermined speed. It becomes a state. Thereafter, when the player presses the stop button 54 at an arbitrary timing, each rotating reel stops. When all the rotating reels are stopped, processing for paying out medals, processing for making it possible to start the game again without newly consuming medals, and the like are performed according to the result of the game. The game ends.

  The effect button 62 is used for notifying the player that the player is happy, for example, that a bonus has been won or that the player has decided to shift to an advantageous state for the player, or for the player. At a predetermined timing such as a game location, a pressing operation for changing the aspect of the effect becomes valid. Then, when the effect button 62 is pressed while the pressing operation is valid, the effect image displayed on the image display device changes, or the movable accessory moves, so that the effect changes. To do.

  As is apparent from the above, it is necessary to press a plurality of stop buttons 54 corresponding to the number of rotating reels for each game. At this time, since the operation force of the stop button 54 is set smaller than the operation force of the MAX bet button 56 and the effect button 62, the player obtains a light and comfortable operation feeling with respect to the operation of the stop button 54. It is possible to press all the stop buttons 54 at a good tempo. Therefore, the player can play the game comfortably, and the game performance is improved. In addition, since the operating force of the stop button 54 that is frequently used is set to be small as described above, the accumulation of the player's fatigue is reduced, and the gameability is improved.

  Further, the MAX bet button 56 is often used for an operation for starting a game or can be operated by hitting it from above. Since the operation force is set to be greater than 54, the player can obtain an operation feeling that is moderately pressed, and the game performance is improved.

  The effect button 62 is operated less frequently than the stop button 54 and the MAX bet button 56. Further, the effect button 62 is in a state in which the pressing operation for changing the aspect of the effect is effective when notifying the player that the player is happy as described above or at a game place for the player. Therefore, it tends to be operated with a strong force by a player in an elevated state. Since the operation force of the effect button 62 is set to be greater than the operation force of the stop button 54 and equal to or greater than the operation force of the MAX bet button 56, the player has a heavy and solid operation feeling. Can be obtained, and the playability is improved.

  As shown in FIG. 2, the upper door 30 includes a cabinet base 30a, a barrier unit 30b fixed inside the back surface of the cabinet base 30a, and a cabinet upper unit 30c fixed on the front side of the cabinet base 30a. Has been. The cabinet base 30a of the upper door 30 is provided in a frame shape having an opening at the center, and a separation band 30d (see FIG. 3) that divides the opening vertically is provided at the substantially center of the opening. The upper side is formed as a display window 30e (see FIG. 3), and the lower side is formed as a reel window (not shown in FIG. 3).

  A shutter device 70 shown in FIG. 3 is provided on the rear side of the display window 32. The shutter device 70 includes a pair of left and right movable members 71 and 71 (shutter, movable accessory) as a movable body, and a drive mechanism 72 that reciprocates the movable members 71 and 71 left and right.

  As will be described later, the movable members 71 and 71 are moved by obtaining power from a drive source such as a motor 73 that constitutes the drive mechanism 72, and in front of the display surface of the image display device (the cabinet base 30a By reciprocating left and right on the front), the game is produced together with the effect image by the image display device. Although not shown in detail, the movable member 71 includes a cover member, a light source substrate (electronic circuit board), a partition member, an upper inner lens, a lower inner lens, a center lens, and an outer lens.

  As clearly shown in FIG. 3, the shutter device 70 includes a rectangular frame-shaped slide base 102, and the slide base 102 has an opening that forms the display window 30 e at the center thereof. Further, a support member 105 as a support body is attached to the upper edge portion of the slide base 102 so as to extend horizontally so as to be substantially perpendicular to the slide base 102.

  The support member 105 is provided with a drive mechanism 72 for reciprocating the movable members 71, 71 to the left and right. The drive mechanism 72 is fixed to one end on the support member 105, for example, as clearly shown in FIGS. A rotatable driving pulley 124 provided in a fixed state, a driven pulley 123 provided, for example, in a fixed state at the other end on the support member 105, and a belt 125 spanned between the driving pulley 124 and the driven pulley 123. And a motor 73 for driving the drive pulley 123 to rotate. In the present embodiment, the motor 73 is configured as a DC brushless motor, for example. In the case where an adjusting mechanism for adjusting the tension of the belt 125 is provided, the driving pulley 124 and / or the driven pulley 123 may be configured to move accordingly.

  The belt 125 is formed, for example, as a timing belt (endless belt with gears) in which a large number of irregularities are sequentially formed along the longitudinal direction of the belt 125. Therefore, the belt 125 rotates without slipping with respect to the drive pulley 124 and the driven pulley 123 by meshing with teeth formed on the outer peripheral surfaces of the drive pulley 124 and the driven pulley 123. Further, the upper ends of the movable members 71, 71 are integrally attached to the belt 125 at two predetermined positions in the longitudinal direction via attachment parts 99. In order to realize stable reciprocation of the movable members 71 and 71 by belt driving, the upper ends of the movable members 71 and 71 are movably attached to the guide rod 135, and the reciprocation is guided. It has become so. In this case, both ends of the guide rod 135 are fastened and fixed to the upper end of the slide base 102 by the fixing member 97, for example.

  As shown in FIG. 3, the drive mechanism 72 is configured such that the driven pulley 123 is covered from the outside by a driven pulley cover 119 made of, for example, a transparent resin cover, and the drive pulley cover 117 made of, for example, a transparent resin cover. The drive pulley 124 is covered from the outside by a pressing member 106, which will also be described later, and the belt drive unit is covered from the outside by a pair (or one) of main covers 118, 118 made of, for example, a transparent resin cover. It has become.

  As clearly shown in FIGS. 5 and 6, the support member 105 that supports the drive mechanism 72 includes a metal base member 103 and various base members 103 that are integrally superimposed on the base member 103 and that are involved in belt driving and the like. The sensor base 104 is made of, for example, a transparent resin on which a sensor or the like is mounted. In this case, as clearly shown in FIG. 5, the base member 103 is, for example, a long member extending along the extending direction of the belt 125 over the entire length of the support member 105 (substantially the entire length of the upper edge portion of the slide base 102). On the other hand, the sensor base 104 extends along the extending direction of the belt 125 on the left and right ends (the drive pulley 124 side and the driven pulley 123 side) of the base member 103.

  The drive pulley 124 constituting the drive mechanism 72 is pivotally supported by a shaft portion 119 extending upward from the support member 105 side so as to be able to rotate forward and backward. A motor holding portion 73a is attached to the lower surface side of the base member 103, and a motor (DC brushless motor) 73 is attached to the motor holding portion 73a with a gear. In this case, a gear is attached to the drive shaft of the motor 73, and this gear meshes with a gear attached to the shaft portion 119 of the drive pulley 124. Accordingly, the drive pulley 124 is rotated around the shaft portion 119 via a gear or the like by driving the motor 73. On the other hand, the driven pulley 123 is also supported by a shaft portion 172 extending upward from the support member 105 side so as to be able to rotate forward and backward. As a result, when the driving pulley 124 is rotated in the forward and reverse directions via the gear by the motor 73 described above, the belt 125 stretched between the driving pulley 124 and the driven pulley 123 rotates and is attached to the belt 125. The movable members 71, 71 are reciprocated left and right.

  In addition, the drive mechanism 72 of the present embodiment further includes a pressing member 106 for preventing the occurrence of tooth skipping due to the belt 125 floating above the meshed engagement with the drive pulley 124. The pressing member 106 has a working portion 130 that faces the belt 125 and pushes the belt 125 back toward the drive pulley 124. As described above, the pressing member 106 also serves as the drive pulley cover 117 and extends the belt so as to change the distance between the action portion 130 formed as a roller (hereinafter also referred to as the roller 130) and the belt 125. It is possible to move along the current direction. Specifically, in the present embodiment, the pressing member 106 forms a rectangular box having a substantially U-shaped cross section with an opening at the bottom, and is formed of, for example, a transparent synthetic resin. The sensor base 104 constituting the support member 105 is supported so as to be movable in the belt extending direction. In this case, the pressing member 106 is disposed in such a manner that the end surface of the side wall 106e extending downward from the peripheral edge of the top plate 106d abuts against the bottom plate 104c of the sensor base 104 and the upper end 104ba of the side wall 104b. It is attached to the sensor base 104 so as to cover the drive pulley 124 from above (outside), and a predetermined portion is held by a boss portion 104a of the sensor base 104 described later.

  Further, such a pressing member 106 is attached to the sensor base 104, and the outer surface of the belt 125 (the driving pulley 124) on which the roller 130 as the operating portion is stretched around the driving pulley 124 as shown in FIG. The roller 130 is supported on the inside so as to be positioned so as to face the surface opposite to the surface meshing with the roller. Specifically, the roller 130 is rotatably supported by a shaft portion 106 a that protrudes inward from the top plate 106 d of the pressing member 106. The roller 130 is formed of, for example, a synthetic resin having a small friction coefficient.

  Furthermore, the holding member 106 also has a lead-out portion 106c for leading out a harness cable (not shown) for electric signal transmission. The lead-out portion 106c includes, for example, an opening 106f formed in the top plate 106d, A protrusion 106g having a guide groove 192 for guiding the harness cable is provided opposite to the opening 106f.

  The movable support of the pressing member 106 by the sensor base 104 is made so that the relative position of the roller 130 with respect to the belt 125 can be adjusted. Specifically, the pressing member 106 has at least one or more parts, particularly in the present embodiment, at both ends of the pressing member 106 along the belt extending direction, in the belt extending direction with respect to the sensor base 104. A loose fitting portion 106b that is supported with a predetermined degree of play is provided. Each of these loose fitting portions 106b is loosely fitted to a corresponding boss portion 104a that rises upward from the sensor base 104, and has a predetermined degree of freedom (in this embodiment, for example, on both sides of the boss portion 104a along the belt extending direction). The cross section is substantially U-shaped (see FIG. 8) so as to define a fitting recess S (a long hole loosely fitted in the boss 104a) capable of forming a 1.5 mm play on each side. Is formed.

  Although not shown, the relative movement path of the pressing member 106 with respect to the sensor base 104 is defined in a direction orthogonal to the belt extending direction so that the relative movement of the pressing member 106 with respect to the support member 105 can be performed stably. The guide part to be formed may be formed by the support member 105. The boss portion 104a described above including such a guide portion forms guide means for guiding the pressing member 106 in the belt extending direction so that the relative movement of the pressing member 106 with respect to the support member 105 can be performed smoothly.

  In order to fix the relative position of the pressing member 106 with respect to the support member 105 (and hence the relative position of the roller 130 with respect to the belt 125) by positioning and fixing the loose fitting portion 106b of the pressing member 106 with respect to the boss portion 104a, the boss A screw hole (female screw hole) 139 into which the screw member 140 inserted into the screw hole 149 of the loose fitting portion 106b is screwed is formed in the portion 104a.

  In order to prevent tooth skipping of the belt 125 using such a pressing member 106, for example, a pressing member that can move in the belt extending direction due to the loosely-fitted state of the boss portion 104a and the loosely fitting portion 106b. A jig (not shown) is formed in a gap C (see FIG. 9) between the belt 125 and a jig abutting surface 193 of 106 (the inner facing surface of the rib portion 106h protruding inward from the top plate 106d of the pressing member 106). ), The distance between the belt 125 and the roller 130 is an appropriate distance that can suppress tooth skipping (for example, a specified distance depending on the form of the jig prepared according to the belt tension set) The distance by which the floating amount of the belt 125 with respect to the pulley 124 is kept below the meshing teeth of the driving pulley 124 and the belt 125 is set (adjusted). In this case, the set tension (attachment tension) of the belt 125 is set to an appropriate value capable of obtaining a desired motor driving performance, for example, 1.0N to 2.0N. After the position is adjusted in this way, the screw member 140 is screwed into the screw hole 139 of the boss 104a at each loose fitting portion 106b in order to fix the adjusted position.

  As described above, according to the present embodiment, the pressing member 106 having the action portion 130 for pressing the belt 125 back to the pulley side is provided so as to face the belt 125, so that the tension of the belt 125 is suppressed. Even if the desired motor driving performance is realized, the tooth jump of the belt 125 can be reliably prevented by the action portion 130 of the pressing member 106. In particular, as in the present embodiment, in order to increase the speed of belt movement, a DC brushless motor with a speed change according to a load (that is, belt tension) acting on the motor shaft is replaced with a pulley driving motor 73. It is useful in the case of adopting as That is, when the motor 73 is increased in speed by suppressing the tension of the belt 125 so that an excessive load is not applied to the motor shaft (in order to exhibit the high speed performance of the DC brushless motor as much as possible) Even if it floats away from the drive pulley 124 and is released, it is pushed back to the drive pulley 124 side by the action portion 130 of the pressing member 106 and the lift is physically suppressed, so that the occurrence of tooth skipping is reliably prevented.

  Further, in the present embodiment, since the pressing member 106 is movable so as to change the distance between the action portion 130 and the belt 125, it can be assumed that the tooth jump occurs according to the set tension of the belt 125. Appropriate measures can be taken. That is, the distance between the action portion 130 and the belt 125 is appropriately adjusted so that the floating amount of the belt 125 with respect to the drive pulley 124 is maintained below the meshing teeth of the drive pulley 124 and the belt 125, and according to the situation. To prevent tooth skipping.

  In the present embodiment, the action portion 130 of the pressing member 106 that pushes back the belt 125 toward the driving pulley 124 is configured as a roller that is rotatably supported by the pressing member 106. Therefore, the load acting on the belt 125 due to the rotation of the roller 130 (load in the rotational movement direction of the belt; load at the time of belt collision) can be released (reduced), and tooth skipping can be prevented without hindering the rotational movement of the belt 125. Can be performed.

  The present invention is not limited to the above-described embodiment, and can be implemented with various modifications without departing from the spirit of the invention. For example, in the above-described embodiment, the pressing member is provided on the drive pulley side, but the pressing member may be provided on the driven pulley side. In the embodiment described above, the motor 73 for driving the drive pulley 123 to rotate is a DC brushless motor. However, the present invention is not limited to a DC brushless motor, and a motor other than a DC brushless motor such as a stepping motor. It is also applicable to. In the above-described embodiment, the action part for pressing the belt back to the pulley side is formed as a roller so as to face the belt, but the action part is not limited to the roller. For example, as shown in FIGS. 11 and 12, the action portion may be formed as a protrusion 130 </ b> A that is formed integrally with the pressing member 106. In this example, the protrusion 130A is formed on the outer surface of the belt 125 (on the opposite side to the surface meshing with the drive pulley 124), as shown in FIG. 12, with the pressing member 106 attached to the sensor base 104. Are formed integrally with the inside of the pressing member 106 so as to be positioned so as to oppose each other.

73 Motor 106 Holding member 123 Driven pulley 124 Drive pulley 125 Belt 130 Action part M Slot machine (game machine)

Claims (1)

A driving pulley driven by a motor, a driven pulley, and a belt stretched between the driving pulley and the driven pulley, and the driving pulley is rotated by the motor to move the belt; A game machine in which a movable body attached to the belt is moved,
A gaming machine comprising a pressing member having an action portion facing the belt to push the belt back toward the pulley.

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