JP2011115196A - Game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a game machine which has an image display device and a plurality of rotary drums attached in a center accessory which is equipped in a game board and raises relevance and integrity of the presentation with the image display device and the presentation with the plurality of rotary drums, or the like. <P>SOLUTION: A center accessory which is equipped in a game board has an image display device which is loaded so that the screen might face the inner area of the frame member. Three rotary drums 41A, 41B, 41C are arranged in a horizontal line so that they can rotate around a common shaft center (a). A drum cover 46 is provided, which is attached to the lower end part of the center accessory so that it can face the screen of the image display device and a playfield 4a, and has a partial cylinder cover part 46a shaped in alignment with the upper surface part and the front surface part of drum peripheral walls 50, 60, 70 of the three rotary drums 41A, 41B, 41C. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a gaming machine, and more particularly to an arrangement of a plurality (three) of rotating drums that are rotatable about a common axis and arranged in parallel in the axial direction.

  2. Description of the Related Art Conventionally, in a pachinko gaming machine, a model is known in which a big hit lottery is performed when a game ball wins a start winning opening, and a game effect according to the lottery result is executed using a plurality of rotating drums. Also, in the slot machine, a big hit lottery is performed when the start lever is operated with a specified number of medals inserted, and the lottery result is displayed as a combination of symbols when rotation of a plurality of rotating drums is stopped. The

  In this type of pachinko gaming machine, generally, as in Patent Documents 1 and 2, three rotating drums can rotate around a common axis that faces left and right and are aligned in the axial direction (left and right direction). It is installed and is arranged in the central part of the center accessory equipped on the game board. These three rotating drums serve as main objects for executing a game effect and displaying a lottery result. In addition, there are many pachinko machines in which an image display is greatly arranged instead of a rotating drum in the center portion of the center accessory.

  On the other hand, in the pachinko gaming machine of Patent Document 3, an image display is disposed at the center of the center accessory, and a double-rotating drum is disposed above the center accessory. The image display device is mounted on the center member so that the screen faces the inner region of the frame member, and the image display device and the double rotating drum are partitioned by the frame member. In the double rotating drum, an inner rotating drum and an outer rotating drum are arranged inside and outside so as to be rotatable around a common axis that is vertically directed.

JP-A-7-51446 Japanese Patent Laid-Open No. 9-47542 JP 2006-288737 A

  In a general pachinko machine, the center board is equipped with a center role, which is only equipped with either an image display or a rotating drum. It is difficult to realize the production. On the other hand, in the pachinko gaming machine of Patent Document 3, an image display is disposed in the center portion of the center accessory, and a double-rotating drum is disposed above the center accessory.

  However, in the pachinko gaming machine of Patent Document 3, the double-rotating drum is configured such that an inner rotating drum and an outer rotating drum are arranged inside and outside so as to be rotatable about a common axis that is vertically directed. Since the double rotating drum is separated from the image display by the frame member of the center accessory, that is, the image display of the image display faces the inner area of the frame member of the center accessory, Since the rotating drum is not so, a problem arises in enhancing the relevance and integrity of the effect produced by the image display and the effect produced by the double rotating drum.

  It is an object of the present invention to attach an image display device and a plurality of rotating drums to a center role equipped on a game board in a gaming machine, and relevance and unity of effects by the image display devices and effects by a plurality of rotating drums. And so on.

  According to the first aspect of the present invention, there are provided a plurality of rotating drums (41A, 41B, 41C) which are rotatable about a common axis (a) and arranged in parallel in the axis direction, and the plurality of rotating drums (41A). , 41B, 41C) in a gaming machine (1) equipped with a rotation drive mechanism (43A, 43B, 43C), respectively, and a center accessory (15) mounted on the game board (4), and the center The accessory (15) includes an image display (16) mounted so that the screen faces the inner region of the frame member (15a), and the plurality of rotating drums (41A, 41B, 41C) are centered The one end side of the object (15) is mounted so as to face the screen and the game area (4a) where the game ball can move, and the drum peripheral walls (50, 60) of the plurality of rotating drums (41A, 41B, 41C) , 70) and a drum cover (46) having a partial cylindrical cover portion (46a) shaped along at least one of the upper surface portion and the front surface portion.

  The invention of claim 2 is characterized in that, in the invention of claim 1, the plurality of rotating drums (41A, 41B, 41C) are mounted on a lower end side portion of the center accessory (15).

  The invention of claim 3 is the invention of claim 2, wherein a stage (15C) on which a game ball can roll is provided at the lower end of the frame member (15A) of the center accessory (15). ), The partial cylindrical cover portion (46a) is disposed so as to project forward.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the plurality of rotating drums (41A, 41B, 41C) are close to each other in the axial direction.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the rotary drums (41A, 41B, 41C) have a length in an axial direction longer than a diameter thereof. To do.

  According to the gaming machine of the present invention, the center accessory mounted on the gaming board includes the image display device mounted so that the screen faces the inner region of the frame member, and the plurality of rotating drums have a common shaft. A plurality of the center actors are mounted so as to face the screen of the image display and the game area in which the game ball can move. Since it has a drum cover having a partial cylindrical cover portion along at least one of the upper surface portion and the front surface portion of the drum peripheral wall of the rotary drum, the relevance and integrity of the effects by the image display and the effects by the plurality of rotating drums With the partial cylindrical cover portion, the drum peripheral wall can be displayed outside in a guarded state so that the game ball does not hit the drum peripheral wall facing the game area.

It is a front view of a pachinko gaming machine. It is a front view of a game board and a center actor. It is a front view of a center actor. It is a block diagram of the control system of a pachinko gaming machine. It is a front view of a game board and a drum device. It is a rear view of a game board and a drum device. It is a front view of a drum apparatus. It is a rear view of a drum apparatus. It is a perspective view of a drum apparatus. It is a perspective view of the state which decomposed | disassembled the drum cover of the drum apparatus. It is a front view of the state which removed the drum cover of the drum apparatus of FIG. It is a perspective view of the state which decomposed | disassembled the drum unit of the drum apparatus of FIG. It is a front view of the state which removed the drum unit of the drum apparatus of FIG. It is a front view of the state which removed the rotation drive mechanism etc. of the drum apparatus of FIG. It is a front view of a drum unit. It is a perspective view of the state which decomposed | disassembled three rotating drums of a drum unit. FIG. 17 is a front view of the drum unit of FIG. 16 with three rotating drums removed. It is a perspective view from the front side of the left part of a drum unit. It is a perspective view from the rear side of the left part of a drum unit. It is a perspective view from the front side of the right part and center part of a drum unit. It is a perspective view from the rear part of the right part and center part of a drum unit. It is a perspective view from the front side of a left rotation drum. It is a disassembled perspective view from the front side of a left rotation drum. It is a perspective view from the rear side of a left rotation drum. It is a disassembled perspective view from the rear side of a left rotation drum. It is a perspective view from the front side of a right rotation drum. It is a disassembled perspective view from the front side of a right rotation drum. It is a perspective view from the rear side of a right rotation drum. It is a disassembled perspective view from the rear side of a right rotation drum. It is a perspective view from the front side of a center rotation drum. It is a disassembled perspective view from the front side of a center rotation drum. It is a perspective view from the rear side of a center rotary drum. It is a disassembled perspective view from the rear side of a center rotary drum. It is a perspective view from the front side of an origin detection sensor and a sensor attachment member. It is a disassembled perspective view from the front side of an origin detection sensor and a sensor attachment member. It is a perspective view from the rear side of an origin detection sensor and a sensor attachment member. It is a disassembled perspective view from the rear side of an origin detection sensor and a sensor attachment member. It is a front view of a sensor attachment member.

  The present invention is applied to a drum device which is a rendering device equipped in a pachinko gaming machine. Hereinafter, modes for carrying out the invention will be described based on examples.

  As shown in FIGS. 1 and 2, in the pachinko gaming machine 1, an open / close frame 2 is detachably attached to an outer frame attached to the game hall, and an open / close door 3 is detachably attached to the open / close frame 2. . A game board 4 is mounted on the open / close frame 2, and a game area 4 a is formed on the front side of the game board 4. A window 3a is formed in the opening / closing door 3, and a transparent plate 3b is attached to the window 3a, and the front side of the game area 4a is covered by the transparent plate 3b.

  The open / close door 3 is provided with a storage tray 5 for storing game balls below the window 3 a, and the effect button device 6 is attached to the storage tray 5. The opening / closing door 3 is provided with a launch handle 7 on the lower right side of the storage tray 5, and when the launch handle 7 is rotated, the game ball introduced from the storage tray 5 to the launch position is launched. When there are a plurality of game balls in the storage tray 5, the plurality of game balls are continuously fired at intervals of about 0.6 seconds. The launched game ball is guided by the guide rail 8 and is thrown into the upper part of the game area 4a.

  As shown in FIGS. 2 to 4, the game board 4 includes a plurality of obstacle nails (not shown), a first start port 10, a second start port device 11, a gate 12, a grand prize port device 13, a plurality of The general winning opening 14, the center accessory 15, the image display 16, the drum device 17, and the game display board 19 are mounted in the arrangement shown in FIG. 2, and the control device 20 is mounted on the back side of the game board 4.

  The first start opening 10 is provided with a first start opening switch 10a for detecting a winning game ball, the gate 12 is provided with a gate SW 12a for detecting a passed game ball, and each general winning opening 14 is won. A general winning opening switch 14a for detecting a game ball is attached. “SW” means a switch.

  The second starter device 11 includes a second starter 11a, an opening / closing member 11b for opening / closing the second starter 11a, a second starter SW11c for detecting a game ball won in the second starter 11a, and an opening / closing member 11b. It has the 2nd starting port SOL11d to drive. “SOL” means a solenoid actuator. The opening / closing member 11b makes it impossible to win a game ball to the second start port 11a in the closed position, and allows the game ball to win the second start port 11a in the open position.

  The big prize opening device 13 includes a big prize opening 13a, an opening / closing member 13b for opening / closing the big prize opening 13a, a big winning opening SW13c for detecting a game ball won in the big prize opening 13a, and a big winning opening for opening / closing the opening / closing member 13b. It has SOL13d. The opening / closing member 13b makes it impossible to win a game ball to the big prize opening 13a in the closed position, and enables winning of the game ball to the big prize opening 13a in the open position.

  The center accessory 15 is a frame member that projects forward from the front surface of the game board 4 and is provided with a size that occupies more than half of the game area 4a from the upper part to the center part of the game board 4. An object main body 15 a and a center accessory base frame 15 b provided on the rear side of the center accessory main body 15 a are provided, and an image display 16 and a drum device 17 are mounted on the center accessory 15. A stage 15c on which a game ball can roll is provided at the lower end of the center accessory body 15a.

  A center mounting hole 4b (see FIGS. 5 and 6) is formed in the game board 4, and a center accessory body 15a is fitted into the center mounting hole 4b, and a center accessory base frame 15b is formed on the rear surface of the game board 4. Is installed. The image display 16 is attached to the center accessory base frame 15b from the rear side so that the screen faces most of the inner region of the center accessory main body 15a.

  In the drum device 17, the three movable combinations of rotating drums 41A, 41B, and 41C are located behind the game board 4 and the center combination main body 15a, and the lower part of the inner region of the center combination main body 15a. The center accessory base frame 15b is mounted from the front side so as to face the screen of the image display 16 and the game area 4a in which the game ball can move.

  The game display board 19 includes a first special symbol indicator 19a, a second special symbol indicator 19b, a normal symbol indicator 19c, a first special symbol hold lamp 19d, a second special symbol hold lamp 19e, and a normal symbol hold lamp 19f. I have.

  On the first special symbol display 19a, the first special symbol is stopped and displayed after the symbol changes based on the winning of the game ball to the first starting port 10, and on the second special symbol indicator 19b, the second starting port is displayed. Based on the winning of the game ball to 11a, the second special symbol is stopped and displayed after the symbol changes. When a big hit symbol is stopped and displayed on the first or second special symbol indicator 19a or 19b, a big hit gaming state occurs, and the big prize opening device 13 opens / closes the opening / closing member 13b, which is normally large in blocking. The winning opening 13a is opened and closed over a plurality of rounds.

  On the normal symbol display 19c, the normal symbol is stopped and displayed after the symbol changes based on the winning (passing) of the game ball to the gate 12. When the symbol is stopped and displayed on the normal symbol display 19c, an auxiliary game occurs, and the second starter device 11 opens and closes the opening and closing member 11b, and the normally closed second starter port 11a is set to 1 or Open and close multiple times.

  The first special symbol holding lamp 19d displays a maximum of four so-called first special symbol holding numbers of game balls won in the first starting port 10, and the second special symbol holding lamp 19e has a second starting port. The so-called second special figure hold number of game balls won in 11a is displayed at the maximum four, and the normal symbol hold lamp 19f displays the so-called general figure hold number of game balls won at the gate 12 at a maximum of four. The

  By turning the launch handle 7, the game ball launched into the upper part of the game area 4a hits a plurality of obstacle nails and falls while changing direction, and any one of the winning holes 10, 11a, 13a, 14 When a prize is won, the game area 4a is discharged out of the game area 4a, and when it is not won in any of the winning openings 10, 11a, 13a, 14, it is finally formed at the lower end of the game area 4a. It is discharged out of the game area 4a from the out port 9.

A control system of the pachinko gaming machine 1 will be described.
As shown in FIG. 4, the control device 20 includes a main control device 21 and a sub control device 25. The main control device 21 is configured by providing a game control board 22 with a CPU, a ROM, and a RAM. The game control board 22 is connected to the board external information terminal board 23.

  The sub-control device 25 includes a payout control board 26, an effect control board 27, an image control board 28, and a lamp control board 29 each including a CPU, a ROM, and a RAM, and the effect control board 27 further includes an RTC. Has been. The payout control board 26 is connected to the frame external information terminal board 24. “RTC” means a real-time clock.

  The game control board 22 receives the ball detection signal from the first and second start openings SW10a and 11c, the gate SW12a, the big prize opening SW13c, the general prize opening SW14a and the control information from the payout control board 26, and the second Control the start opening SOL11d, the big winning opening SOL13d, the symbol displays 19a to 19c, the symbol holding lamps 19d to 19f, control information (game information) to the payout control board 26, the effect control board 27 and the board external information terminal board 23 Is output.

  The payout control board 26 receives the control information from the game control board 22 and the ball detection signals from the payout ball detection SW31, the ball presence detection SW32, and the full tank detection SW33, and controls the payout drive motor 30 to receive the winning opening 10 , 11a, 13a, 14 for one winning game ball, the number of game balls set for each of the winning openings 10, 11a, 13a, 14 is paid out to the storage tray 5, and the game control board 22 and external information for the frame Control information (payout information) is output to the terminal board 24.

  The effect control board 27 receives the control information from the game control board 22 and the button operation signal from the effect button device 6, outputs the control information to the image control board 28, and further receives the control information from the image control board 28. In response, control information is output to the lamp control board 29. The image control board 28 receives control information from the effect control board 27, controls the image display 16 and the speaker 34, and outputs control information to the effect control board 27. The lamp control board 29 receives control information from the effect control board 27, controls the frame lamp 35 and the panel lamp 36 mainly in synchronization with the control by the image control board 28, and further controls the drum device 17. To do.

The drum device 17 will be described in detail.
As shown in FIGS. 2, 3, and 5 to 17, the drum device 17 is rotatable around the drum case 40 and a common axis a facing left and right and in the axial direction (left and right direction). Three rotating drums 41A, 41B, and 41C arranged in series, and a rotation support mechanism 42 that rotatably supports the three rotating drums 41A, 41B, and 41C on the base member 45 of the drum case 40, respectively. Three sets of rotation detection mechanisms 43A, 43B, and 43C that respectively rotate and rotate the three rotation drums 41A, 41B, and 41C, and three sets of origin detection that detect the origin positions of the three rotation drums 41A, 41B, and 41C, respectively. Means 44A, 44B and 44C are provided.

  The rotating drum 41A, the rotation drive mechanism 43A, and the origin detection means 44A are appropriately referred to as a left rotation drum 41A, a left rotation drive mechanism 43A, and a left origin detection means 44A. Further, the rotating drum 41B, the rotation drive mechanism 43B, and the origin detection means 44B are appropriately referred to as a right rotation drum 41B, a right rotation drive mechanism 43B, and a right origin detection means 44B. Further, the rotary drum 41C, the rotation drive mechanism 43C, and the origin detection means 44C are appropriately referred to as a center rotation drum 41C, a center rotation drive mechanism 43C, and a center origin detection means 44C.

  As shown in FIGS. 7 to 14, the drum case 40 is composed of a rectangular transparent synthetic resin case that is long in the left-right direction, and a base member 45 and a drum that is attached to the base member 45 so as to cover the front side thereof. And a cover 46. Rotating drums 41A, 41B, 41, a rotation support mechanism 42, rotation drive mechanisms 43A, 43B, 43C, and origin detection means 44A, 44B, 44C are mounted in the drum case 40.

  The drum cover 46 includes a partial cylindrical cover portion 46a having a shape extending from the upper surface portion of the drum peripheral walls 50, 60, and 70 of the three rotary drums 41A, 41B, and 41C to the front surface portion. It arrange | positions so that it may project ahead on the upper side of the stage 15c of the center accessory main body 15a. By the partial cylindrical cover portion 46a, the drum peripheral walls 50, 60, 70 are displayed in a guarded state so that the game balls do not hit the drum peripheral walls 50, 60, 70 facing the game area 4a.

The rotating drums 41A, 41B, and 41C will be described.
As shown in FIGS. 10 to 12, 15, 16, and 18 to 21, the three rotating drums 41 </ b> A, 41 </ b> B, and 41 </ b> C are basically formed in the same shape and the same size, and are substantially spaced in the left-right direction. There is no parallel (with a small gap), that is, the central rotating drum 41C is close to the left rotating drum 41A and the right rotating drum 41B. The three rotary drums 41A, 41B, and 41C have an overall length that is approximately ½ of the left and right length of the game board 4, and have a diameter that is approximately 1/6 of the entire length, and are generally thin in the left-right direction. It is a thing.

  Next, the left rotating drum 41A, the right rotating drum 41B, and the central rotating drum 41C will be described in this order. However, in the right rotating drum 41B and the central rotating drum 41C, the description of the basically same configuration as the left rotating drum 41A will be omitted or simply described as appropriate.

  As shown in FIGS. 18, 19, 22 to 25, etc., the left rotating drum 41 </ b> A has a left-right length longer than its diameter (for example, a left-right length approximately twice the diameter). The left rotating drum 41A includes a synthetic resin drum peripheral wall 50 on which a pattern is formed, and a pair of synthetic resin annular end walls 55 and 56 (left annular end wall 55) coupled to both left and right ends of the drum peripheral wall 50. And a right annular end wall 56). A pair of mounting recesses 50a and 50b (a left mounting recess 50a and a right mounting recess 50b) are formed at the left and right ends of the drum peripheral wall 50, and a pair of annular end walls 55 and 56 are formed in the pair of mounting recesses 50a and 50b. Are connected in a fitted state.

  The drum peripheral wall 50 has three divided peripheral walls 51, 52, and 53 that are divided at intervals of 120 degrees in the circumferential direction around the axis a, and the three divided peripheral walls 51, 52, and 53 are coupled to each other. The cross section is formed in a rice ball shape. Each of the divided peripheral walls 51, 52, 53 is formed in a partial cylindrical shape having a smaller curvature than the circle having the diameter of the left rotating drum 41A, and has a partial cylindrical surface 50c serving as an outer convex curved outer surface.

  In other words, the drum peripheral wall 50 includes three ridge lines 50d extending in the left-right direction that serve as boundaries between the three divided peripheral walls 51, 52, and 53, and three partial cylindrical surfaces positioned between the three ridge lines 50d. 50c. The portion of the ridge line 50d of the drum peripheral wall 50 has a maximum diameter, and the curvature of the partial cylindrical surface 50c of each divided peripheral wall 51, 52, 53 is smaller than the curvature of the circle having the maximum diameter.

  Each divided peripheral wall 51, 52, 53 is light transmissive, and an uneven pattern is integrally formed on the outer surface of each divided peripheral wall 51, 52, 53, and on the inner surface of each divided peripheral wall 51, 52, 53. Is integrally provided with a sheet-like lens. A plurality of LEDs 57 (see FIGS. 16 and 17) are provided inside the left rotating drum 41A, and the light of the LEDs 57 is diffused by the sheet-like lenses of the divided peripheral walls 51, 52, and 53 located on the front side of the left rotating drum 41A. Then, the illumination is transmitted through the divided peripheral walls 51, 52, 53.

  Each of the divided peripheral walls 51, 52, 53 is formed with a pair of left and right inner flange portions 51a, 52a, 53a extending from the vicinity of both left and right ends toward the axis a, and the three divided peripheral walls 51a, 52a, 53a Out of the two adjacent peripheral walls 51, 52/52, 53/53, 51, the inner flange portions 51a, 52a / 52a, 53a / 53a, 51a are circumferentially overlapped in the left-right direction. A pair of rice bowl-shaped mounting recesses 50a are formed at both left and right ends of the drum peripheral wall 50. In each mounting recess 50a of the drum peripheral wall 50, three screw holes 50e are formed at both circumferential ends of the inner flange portions 51a, 52a, 53a, and a plurality of positioning holes are formed in the inner flange portions 51a, 52a, 53a. 50f is formed.

  Each of the divided peripheral walls 51, 52, 53 is integrally formed by injection molding together with an uneven pattern. At that time, a sheet-like lens is set in advance in the cavity of the molding die, and each of the divided peripheral walls 51, 52, 53 It is formed by in-mold molding in which a sheet-like lens is integrated with the inner surface portion of 53.

  Each of the annular end walls 55 and 56 is formed in a rice ball shape having the same diameter and the same size as the mounting recesses 50a and 50b, and the inner peripheral portion thereof is formed in a relatively large circular hole portion 55a and 56a to form a ring shape. Further, the left annular end wall 55 is integrally formed with a connecting cylinder portion 55b that protrudes leftward from a portion near the inner periphery thereof. Each of the annular end walls 55 and 56 is formed with three screw holes 55c and 56b, and a plurality of positioning pins 55d and 56c that can be engaged with the plurality of positioning holes 50f of the mounting recesses 50a and 50b. ing. The three screw holes 55 c and 56 b are formed in the vicinity of the apexes of the annular end walls 55 and 56.

  A pair of annular end walls 55 and 56 are fitted into a pair of mounting recesses 50a and 50b, and a plurality of positioning pins 55d and 56c of each annular end wall 55 and 56 are a plurality of mounting recesses 50a and 50b. The inner flange portions 51a, 52a / 52a of two adjacent divided peripheral walls 51, 52/52, 53/53, 51 out of the three divided peripheral walls 51, 52, 53. 53a / 53a, 51a and the annular end walls 55, 56 are stacked in the left-right direction, the three screw holes 50e of the mounting recesses 50a, 50b and the three screw holes 55c of the annular end walls 55, 56, 56b are matched and fastened with screws 59 from these screw holes, and the pair of annular end walls 55, 56 are coupled in a state of being fitted into the pair of mounting recesses 50a, 50b.

  Now, the three divided peripheral walls 51, 52, 53 and the pair of annular end walls 55, 56 are configured so that they can be assembled only when they have a normal positional relationship in the circumferential direction and the axial direction. For this reason, the three divided peripheral walls 51, 52, 53 are configured so as not to be assembled in a state that does not have a normal positional relationship, and the three divided peripheral walls 51, 52, 53 have a normal positional relationship. In the assembled state, the left annular end wall 55 serving as one reference annular end wall of the pair of annular end walls 55, 56 is in a normal position with respect to the three divided peripheral walls 51, 52, 53. It is configured so that it cannot be fitted into the left mounting recess 50a without being related.

  In order to make assembly impossible in a state where the three divided peripheral walls 51, 52, 53 are not in a normal positional relationship, one divided peripheral wall of the three divided peripheral walls 51, 52, 53 is omitted. A protruding portion that slightly protrudes outward in the circumferential direction is formed on the inner surface portion of one circumferential end portion of 51. On the other hand, a pair of projecting portion retracting recesses capable of retracting the projecting portions are formed on an inner surface portion of one end portion in the circumferential direction of the segmented peripheral wall 52 adjacent to the projecting portion of the divided peripheral wall 51. Therefore, the two divided peripheral walls 51 and 52 can be assembled in a state in which their opposing end portions are in contact with each other, and the remaining one divided peripheral wall 52 also has both end portions in the circumferential direction at the two ends. Assembling is possible in a state of being in contact with the opposed end portions of the divided peripheral walls 51 and 52.

  However, the two divided peripheral walls 51, 51 are arranged so that one end in the circumferential direction of the divided peripheral wall 53 without the protruding portion retracting recess comes into contact with one end in the circumferential direction on the protruding portion side of the divided peripheral wall 51 having the protruding portion. Even when trying to assemble 52, the projecting portion interferes with the divided peripheral wall 52 on the other side of the assembly, and the two divided peripheral walls 51, 52 can be assembled with their opposing end portions in contact with each other. become unable. That is, it is possible to make the assembly impossible in a state where the three divided peripheral walls 51, 52, 53 are not in a normal positional relationship.

  Further, a pair of thick bosses 50g for screwing in the left-right direction are provided at one end in the circumferential direction of a pair of inner flanges of each divided peripheral wall. One end portion in the circumferential direction without the boss portion 50g of the pair of inner flanges of the divided peripheral wall comes into contact, but when the assembly direction of the divided peripheral wall is opposite to the left and right, the boss portion 50g of the divided peripheral wall is It interferes with the boss portion 50g of the divided peripheral wall on the assembly counterpart side. Therefore, it is impossible to assemble the three divided peripheral walls 51, 52, 53 in a state where they are not in a normal positional relationship, and it is possible to immediately know the wrong assembly of the divided peripheral walls 51, 52, 53. .

  Next, in a state where the three divided peripheral walls 51, 52, 53 are assembled so as to have a normal positional relationship, the left annular end wall 55 is in a normal position with respect to the three divided peripheral walls 51, 52, 53. In order not to be able to fit into the left mounting recess 50a in a state that is not related, only when the left annular end wall 55 is in a normal positional relationship with respect to the three divided peripheral walls 51, 52, 53, the left annular The plurality of engaging pins 55d of the end wall 55 are configured to engage with the plurality of positioning holes 50f of the left mounting recess 50a so that the left annular end wall 55 is fitted into the left mounting recess 50a.

  That is, when the left annular end wall 55 is not in a normal positional relationship with respect to the three divided peripheral walls 51, 52, 53, at least one of the plurality of engagement pins 55d of the left annular end wall 55 is left-attached. Such a configuration that interferes with the recess 50a is achieved by the number and arrangement of the positioning holes 50f of the left mounting recess 50a and the positioning pins 55d of the left annular end wall 55.

  As shown in FIGS. 20, 21, 26 to 29, the right rotating drum 41 </ b> B has a symmetrical structure with the left rotating drum 41 </ b> A, and a drum peripheral wall 60 including three divided peripheral walls 61, 62, 63. It has a pair of annular end walls 65, 66 (a left annular end wall 65 and a right annular end wall 66). The right annular end wall 66 becomes the reference annular end wall. A plurality of LEDs 67 (see FIGS. 16 and 17) are provided inside the right rotating drum 41B, and the light of the plurality of LEDs 67 is a sheet of the divided peripheral walls 61, 62, and 63 positioned on the front side of the right rotating drum 41B. It is diffused by the lens and passes through the divided peripheral walls 61, 62, 63 to illuminate. Note that at least a part of the pattern formed on the drum peripheral wall 60 of the right rotating drum 41B may be different from the pattern of the left rotating drum 41A.

  As shown in FIGS. 20, 21, 30 to 33, the central rotating drum 41 </ b> C includes a drum peripheral wall 70 composed of three divided peripheral walls 71, 72, 73 and a pair of annular end walls 75, 76 (left It has an annular end wall 75 and a right annular end wall 76), and has the same configuration as that of the left rotating drum 41A except for the left annular end wall 75 serving as a reference annular end wall. A plurality of LEDs 77 (see FIGS. 16 and 17) are provided inside the central rotary drum 41C, and the light of the plurality of LEDs 77 is a sheet of the divided peripheral walls 71, 72, 73 positioned on the front side of the central rotary drum 41C. It is diffused by the lens and passes through the divided peripheral walls 71, 72, 73 to illuminate. It should be noted that at least a part of the symbols formed on the drum peripheral wall 70 of the central rotating drum 41C may be different from the symbols of the left rotating drum 41A and the right rotating drum 41B.

  The left annular end wall 75 is made of synthetic resin, and is coupled to the left end portion of the drum peripheral wall 70, that is, coupled to the left mounting recess 70 a of the drum peripheral wall 70. The left annular end wall 75 is formed in a rice ball shape having the same diameter and the same size as the left mounting recess 70a, and an inner peripheral portion thereof is formed in a relatively small circular hole 75a. On the left surface portion of the left annular end wall 75, a groove 75b that is elongated in the direction orthogonal to the axis a is formed so as to penetrate the circular hole 75a. The left annular end wall 75 is formed with three screw holes 75c, and a plurality of positioning pins 75d are integrally formed. The three screw holes 75c and the plurality of positioning pins 75d are formed on the left rotating drum 41A. The same as that of the left annular end wall 55.

  In other words, the three divided peripheral walls 71, 72, 73 and the pair of annular end walls 75, 76 are configured so that they can be assembled only when they are in a normal positional relationship in the circumferential direction and the axial direction. Therefore, the three divided peripheral walls 71, 72, 73 are configured so as not to be assembled in a state that does not have a normal positional relationship, and the three divided peripheral walls 71, 72, 73 have a normal positional relationship. In the assembled state, the left annular end wall 75 serving as one reference annular end wall of the pair of annular end walls 75, 76 is in a normal position with respect to the three divided peripheral walls 71, 72, 73. It is configured so that it cannot be fitted into the left mounting recess 70a in a state that is not related.

The rotation support mechanism 42 will be described.
As shown in FIGS. 16 to 21, the rotation support mechanism 42 extends in the left-right direction and is attached to the base member 45 of the drum case 40, and the support case 80 to which the three rotation drums 41 </ b> A, 41 </ b> B, 41 </ b> C are externally fitted. A part of each of the rotary drums 41A, 41B, 41C is rotatably supported by the support case 80, and the drive shaft 120 of the central rotational drive mechanism 43C disposed concentrically with the shaft center a is the support case. 80 is penetrated in the left-right direction.

  The support case 80 has a pair of split support cases 81 and 82 (a left split support case 81 and a right split support case 82) arranged side by side so as to be adjacent to each other in the left-right direction. The left and right length of the right split support case 82 is about twice as long as the left and right length of the left split support case 81. The left rotary drum 41A is fitted on the left split support case 81, and the right split drum 41B and the center are placed on the right split support case 82. A rotating drum 41C is fitted.

  The left split support case 81 has a left end fixed to the base member 45, and a drive shaft 120 is rotatably fitted and supported on the left end via a synthetic resin bearing member 85. The drive shaft 120 is externally supported by a synthetic resin bearing member 86 so as to be relatively rotatable. The left rotating drum 41A has a left end portion rotatably supported by a left split support case 81 via a synthetic resin bearing member 87, and a right end portion of the left rotary drum 41A on the left split support case 81 and the drive shaft 120. The bearing member 86 is rotatably fitted and supported via a bearing member 86.

  The left split support case 81 has a case body 81a made of synthetic resin having a U-shaped cross section that opens forward, and a substrate 81b attached to a front end portion that is an open end portion of the case body 81a. A plurality of LEDs 57 that illuminate the left rotating drum 41 </ b> A are mounted on the front surface of the LED. The case main body 81a and the substrate 81b form a closed cross section, and the outer surfaces of the upper and lower walls of the case main body 81a are formed in a cylindrical surface centered on the axis a.

  A flange 81c is formed on the left end portion of the case body 81a so as to protrude vertically. The flange 81c is fixed to the base member 45 of the drum case 40. The bearing member 85 is mounted on the left end wall of the case main body 81a so as to fit inside, and the drive shaft 120 is fitted on the bearing member 85. The bearing member 86 is mounted on the right end wall of the case main body 81a so that the center side portion is fitted inside and the outer circumferential side portion is fitted outside. The drive shaft 120 is fitted inside the bearing member 86 and the left rotating drum 41A is fitted. A circular hole portion 56a of the right annular end wall 56 is externally fitted. The bearing member 87 is externally fitted to the left portion of the case body 81a, and the connecting cylinder portion 55b of the left annular end wall 55 of the left rotating drum 41A is externally fitted to the bearing member 87.

  The gear member 100 of the left rotation drive mechanism 43A is rotatably fitted and supported on the bearing member 87, and the connecting cylinder portion 55b (left end portion) of the left annular end wall 55 of the left rotation drum 41A is attached to the gear member 100. Yes. The gear member 100 is formed with a drum mounting annular recess 100a having an open right end, and the connecting cylinder portion 55b of the left rotating drum 41A is fitted into the drum mounting annular recess 100a so as not to be relatively rotatable. The left rotating drum 41 </ b> A is mounted together with the gear member 100 so as to be rotatable with respect to the left divided support case 81 and not movable in the left-right direction by the bearing members 86 and 87.

  Here, three protrusions 100b having different circumferential widths are formed at intervals of 120 ° in the circumferential direction on the drum mounting annular recess 100a, and three slits having different circumferential widths at intervals of 120 ° in the circumferential direction are formed on the connecting cylinder portion 55b. 55e is formed, and only when the gear member 100 and the left rotating drum 41A are in a normal positional relationship in the circumferential direction, the three protrusions 100b engage with the three slits 55e, and the connecting cylinder portion 55b is fitted into the drum mounting annular recess 100a.

  The right split support case 82 has a right end fixed to the base member 45, and a drive shaft 120 is rotatably fitted and supported on the right end via a synthetic resin bearing member 88. The drive shaft 120 is externally supported by a synthetic resin bearing member 89 so as to be relatively rotatable. The right rotating drum 41B has a right end portion and a left end portion that are rotatably fitted and supported by a right split support case 82 via bearing members 90 and 91 made of synthetic resin. The left end of the central rotary drum 41C is coupled to the drive shaft 120 so as not to be relatively rotatable, and the right end thereof is rotatably fitted and supported on the right split support case 82 via the bearing member 91.

  The right split support case 82 has a case body 82a made of a synthetic resin having a U-shaped cross section that opens forward, and a substrate 82b attached to a front end that is an open end of the case body 82a. A plurality of LEDs 67 and 77 that illuminate the right rotating drum 41B and the central rotating drum 41C from the inside are mounted on the front surface of 82b. The case main body 82a and the substrate 82b form a closed cross section, and the outer surfaces of the upper and lower walls of the case main body 82a are formed in a cylindrical surface centered on the axis a.

  A flange 82c formed so as to protrude vertically at the right end of the case body 82a is fixed to the base member 45 of the drum case 40. The bearing members 88 and 89 are attached to the right end wall and the left end wall of the case main body 82a so as to be fitted inside, and the drive shaft 120 is fitted into these bearing members 88 and 89. The bearing member 90 is externally fitted to the right portion of the case main body 82a. The connecting cylindrical portion 66b of the right annular end wall 66 of the right rotating drum 41B is externally fitted to the bearing member 90, and the bearing member 91 is the case main body 82a. The bearing member 91 is provided with a circular hole 65a of the left annular end wall 65 of the right rotating drum 41B and a circular hole 76a of the right annular end wall 76 of the central rotating drum 41C. A circular hole 75a of the left annular end wall 75 of the central rotary drum 41C is externally fitted to the drive shaft 120.

  The gear member 110 of the right rotation drive mechanism 43B is rotatably fitted and supported on the bearing member 90, and the connecting cylinder portion 66b (right end portion) of the right annular end wall 66 of the right rotation drum 41B is attached to the gear member 110. Yes. The gear member 110 is formed with a drum mounting annular recess 110a having an open left end, and the connecting cylinder portion 66b of the right rotating drum 41B is fitted in the drum mounting annular recess 110a so as not to be relatively rotatable. The right rotating drum 41B is attached to the right split support case 82 together with the gear member 110 by the bearing members 90 and 91 so as not to move in the left-right direction.

  Here, three protrusions 110b having different circumferential widths are formed at intervals of 120 degrees in the circumferential direction on the drum mounting annular recess 110a, and three slits having different circumferential widths at intervals of 120 degrees in the circumferential direction are formed on the connecting cylinder part 66b. 66c is formed, and only when the gear member 110 and the right rotating drum 41B have a normal positional relationship in the circumferential direction, the three protrusions 110b engage with the three slits 66c, and the connecting cylinder portion 66b is fitted into the drum mounting annular recess.

  Further, a connecting pin 124 is provided between the pair of split support cases 81 and 82 as a connecting member for connecting the drive shaft 120 to the central rotating drum 41C so as not to be relatively rotatable. The central rotating drum 41C is attached to the right split support case 82 together with the drive shaft 124 so as not to move in the left-right direction by the connecting pin 124 and the bearing member 91. Here, a gear member 121 of the central rotation drive mechanism 43C and a retaining C-ring 120a are attached to the left end portion of the drive shaft 120 protruding leftward from the left split support case 81, and the right split support is provided. The shielding member 151 of the center origin detecting means 44C and the retaining C-ring 120b are attached to the right end portion protruding rightward from the case 82.

  The drum unit includes three rotary drums 41A, 41B, 41C, a pair of split support cases 81, 82, a drive shaft 120, a connecting pin 124, gear members 100, 110, 121, a shielding member 151, C rings 120a, 120b, and the like. 41 (see FIGS. 12, 15, and 16) is configured. The drum unit 41 is assembled by fastening a pair of split support cases 81 and 82 to the base member 45 of the drum case 40 in a preassembled state.

  The right annular end wall 56 of the left rotating drum 41A, the left annular end wall 65 of the right rotating drum 41B, the right annular end wall 76 of the central rotating drum 41C, the left annular end wall 55 of the left rotating drum 41A and the right rotating drum 41B. Each of the right annular end walls 66 is composed of parts having the same structure.

The rotation drive mechanisms 43A, 43B, and 43C will be described.
As shown in FIGS. 8, 10 to 13, etc., the left rotation drive mechanism 43 </ b> A includes a gear member 100 disposed in the vicinity of the left part of the three rotation drums 41 </ b> A, 41 </ b> B, 41 </ b> C (left rotation drum 41 </ b> A). A drive gear member 101 and an electric motor 102 (stepping motor 102) are included. As described above, the gear member 100 is attached to the left end portion of the left rotating drum 41A, and the drive gear member 101 is disposed below the gear member 100 and meshes with the gear member 100. The electric motor 102 is disposed to the left below the left rotating drum 41A and is attached to the base member 45 of the drum case 40. The drive gear member 101 is connected to the output shaft of the electric motor 102. A driving force is input to the left rotating drum 41 </ b> A via 100.

  The right rotation drive mechanism 43A includes a gear member 110, a drive gear member 111, and an electric motor 112 (stepping motor 112) disposed near the right part of the three rotation drums 41A, 41B, and 41C (right rotation drum 41B). Have The gear member 110 is attached to the right end portion of the right rotating drum 41B as described above, and the drive gear member 111 is disposed on the lower side of the gear member 110 and meshes with the gear member 110. The electric motor 112 is disposed rightward below the right rotation drum 41B and is attached to the base member 45 of the drum case 40. The drive gear member 111 is connected to the output shaft of the electric motor 112, and the drive gear member 111 and the gear member are connected. A driving force is input to the right rotating drum 41 </ b> B via 110.

  The central rotary drive mechanism 43C is disposed on the drive shaft 120 that penetrates all the rotary drums 41A, 41B, and 41C and the left end side of the three rotary drums 41A, 41B, and 41C (the left side of the left rotary drum 41A). A gear member 121, a drive gear member 122, and an electric motor 123 (stepping motor 123) are included. The drive shaft 120 is arranged concentrically with the shaft center a as described above and is connected to the central rotary drum 41B so as not to rotate relative to the center shaft 41B. The gear member 121 is attached to the left end portion of the drive shaft 120 as described above. ing. The electric motor 123 is disposed to the right and is attached to the base member 45 of the drum case 40, the drive gear member 122 is connected to the output shaft thereof, and the left end of the drive shaft 120 via the drive gear member 122 and the gear member 121. The driving force is input to the part.

  The central rotational drive mechanism 43C includes a connecting pin 124 that passes through the drive shaft 120 in the direction perpendicular to the axis, and a pin engaging portion 75b formed on the central rotating drum 41C so that the connecting pin 124 engages. The pin engaging portion 75b includes an elongated concave groove 75b formed in the left annular end wall 75 of the central rotating drum 41C so that the connecting pin 124 engages from the direction parallel to the axial direction (left side). Between the pair of split support cases 81 and 82, a connecting pin 124 as a connecting member for connecting the drive shaft 120 to the central rotating drum 41C so as not to be relatively rotatable is disposed. Thus, a driving force is input from the driving shaft 120 to the central rotating drum 41C via the connecting pin 124.

  The gear members 100, 101/111, and 112 of the left rotation drive mechanism 41A and the right rotation drive mechanism 41B, and the electric motors 102, 112, and 123 of the rotation drive mechanisms 41A, 41B, and 41C are composed of parts having the same structure. . The gear ratio of the gears 100 and 101 of the left rotational drive mechanism 41A, the gear ratio of the gears 110 and 111 of the right rotational drive mechanism 41B, and the gear ratio of the gears 121 and 122 of the central rotational drive mechanism 41C are the same.

The origin detection means 44A, 44B, 44C will be described.
As shown in FIGS. 10 to 13 and the like, the left origin detecting means 44A is disposed on the left end side of the three rotating drums 41A, 41B, 41C (left side of the left rotating drum 41A), and is on the left end side of the drive shaft 120. A detected portion 130 (see FIG. 19) provided in the portion and an origin detection sensor 135 that detects the origin position of the left rotating drum 41A via the detected portion 130 are provided.

  The gear member 100 connected to the left end of the left rotating drum 41A is integrally formed with an annular shielding member 131 that protrudes to the left, and is covered by a slit formed in a part of the circumferential direction by the shielding member 131. A detection unit 130 is formed. That is, the detected part 130 is provided integrally with the gear member 100.

  As shown in FIGS. 34 to 37, the origin detection sensor 135 is an optical sensor (photointerrupter) having a concave main body 135a, and a light emitting portion 135b and a light receiving portion 135c attached to opposite ends of the main body 135a. ), And the light emitting portion 135b and the light receiving portion 135c protrude rightward from the base portion of the main body 135a and are positioned vertically with the annular shielding member 131 interposed therebetween. It is arranged on the left side and on the right side of the gear members 121 and 122 of the central rotational drive mechanism 43C, and is attached to the base member 45 of the drum case 40 via the sensor attachment member 136.

  The right origin detection means 44B is disposed on the right end side of the three rotary drums 41A, 41B, 41C (on the right side of the right rotary drum 41B), and a detected portion 140 (see FIG. 20) and an origin detection sensor 145 for detecting the origin position of the right rotating drum 41A via the detected portion 140.

  The gear member 110 connected to the right end portion of the right rotating drum 41B is integrally formed with an annular shielding member 141 that protrudes to the right. The shielding member 141 is covered by a slit formed in a part of the circumferential direction. A detection unit 140 is formed. That is, the detected part 140 is provided integrally with the gear member 110.

  The origin detection sensor 145 has the same structure as the origin detection sensor 135. Therefore, the detailed structure will be described with the same reference numerals as the origin detection sensor 135, but the light emitting part 135b and the light receiving part 135c are the main body 135a. Of the right rotation drive mechanism 43B on the right side of the gear members 110 and 111 and on the left side of the shielding member 151 of the central origin detecting means 44C so that it protrudes to the left from the base portion and is positioned above and below the annular shielding member 141. Arranged and attached to the base member 145 of the drum case 140 via the sensor attachment member 146.

  The center origin detecting means 44B is disposed on the right end side of the three rotating drums 41A, 41B, 41C (on the right side of the right rotating drum 41B), and the detected portion 150 (see FIG. 20), and an origin detection sensor 155 that detects the origin position of the central rotary drum 41C via the detected portion 150.

  An annular shielding member 151 is attached to the right end portion of the drive shaft 120, and the portion to be detected 150 is formed by a slit formed in a part of the circumferential direction by the shielding member 151.

  The origin detection sensor 155 has the same structure as the origin detection sensor 135. Therefore, the detailed structure will be described with the same reference numerals as the origin detection sensor 135. However, the light emitting unit 135b and the light receiving unit 135c are composed of the main body 135a. It is arranged on the right end side of the shielding member 151 so as to protrude to the left from the base portion and sandwich the annular shielding member 151 and is attached to the base member 145 of the drum case 140 via the sensor attachment member 156. It has been.

  Here, the origin detection sensor 135 of the left origin detection means 44A, the origin detection sensor 145 of the right origin detection means 44B, the origin detection sensor 135 of the left origin detection means 44A, and the origin detection sensor 155 of the center origin detection means 44C, respectively, In order to use the sensor mounting members 136, 146, and 156 having the same structure for mounting the origin detection sensors 135, 145/135, and 155 that are reverse to the front and back (reverse and forward). Each sensor mounting member 136, 146, 156 is formed in a symmetrical structure in the front and back direction (front-rear direction).

  The two origin detection sensors 135 and 145 and the two origin detection sensors 135 and 155 have their main bodies 135a oriented in opposite directions in the horizontal direction (left and right), and the mounting state is reversed. The attachment state of the sensor attachment members 136 and 146 of the detection sensors 135 and 145 to the base member 45 and the attachment state of the sensor attachment members 136 and 156 of the two origin detection sensors 135 and 155 to the base member 45 are reversed. Become.

  As shown in FIGS. 34 to 38, the sensor mounting member 160 (136, 146, 156) has a rectangular case portion 161 and a mounting piece 162 protruding from one end portion (lower end portion) of the rectangular case portion 161. The rectangular case portion 161 is provided with a base wall 163 that divides a part of the inside thereof into left and right.

  The origin detection sensor 135 (145, 155) is formed in the base wall 163 with a plurality of claws 135d extending from the main body 135a in a state where the main body 135a is accommodated in the rectangular case portion 161 and is in contact with the base wall 163. Through the claw holes. The rectangular case 161 accommodates a fixed piece 165 from the opposite side of the main body 135a and is fixed to the base wall 163 with a screw 166. The plurality of claws 135d are locked by the fixed piece 164, and the origin detection sensor 135 (145, 155) is fixedly held by the sensor mounting member 160.

  The sensor attachment member 160 has its attachment piece 162 positioned on the base member 145 and attached with a screw. For this reason, the positioning engagement portions 171a, 172a, 173a provided on the base member 145 are attached to the attachment piece 162. A positioning hole 162a and a screw hole 162b that engage with each other (see FIG. 14) are formed in a penetrating manner, and the positioning member provided on the base member 145 is formed on a pair of front and back wall portions 161a of the rectangular case portion 161. Second positioning holes 161b that can engage with the second engaging portions 171b, 172b, and 173b (see FIG. 14) are formed.

  Also, the base member 145 is provided with boss portions 171c, 172c, 173c (see FIG. 14) in the vicinity of the engaging portions 171a, 172a, 173a, and the mounting piece 162 of the sensor mounting member 160 is the boss portions 171c, 172c, It is fixed with a screw fitted in the screw hole 162b in a state of being in contact with 173c. Note that at least one of the engaging portions 171a, 172a, 173a and the second engaging portions 171b, 172b, 173b is constituted by a screw, and the sensor mounting member 160 is positioned and fixed to the base member 45 by the screw. May be.

The drum device 17 described above has the following effects.
A central rotation drive mechanism 43C is disposed concentrically with the shaft center a, is connected to the central rotation drum 41C so as not to rotate relative to it, and passes through the left rotation drum 41A located on the left side of the central rotation drum 41C. 120, gear members 121 and 122 that are disposed on the left end side of the three rotary drums 41A, 41B, and 41C and that input a driving force to the left end portion of the drive shaft 120, and the electric motor 123 are provided. A rotation drive mechanism 43C is provided so as not to obstruct the rotation drums 41A, 41B, 41C, and the central rotation drum 41C can be driven to rotate.

  Since the central origin detection means 44C is disposed on the right end side of the three rotary drums 41A, 41B, 41C, the central origin detection means 44C is provided so as not to obstruct the rotary drums 41A, 41B, 41C, and the central rotation The origin position of the drum 41C can be detected. Therefore, the diameters of the rotating drums 41A, 41B, and 41C can be reduced, and the left rotation driving mechanism 43A and the left origin detecting means 44A are disposed on the left end side of the three rotating drums 41A, 41B, and 41C. Since the right rotation drive mechanism 43B and the right origin detection means 44B are disposed on the right end side of the three rotation drums 41A, 41B, 41C, the central rotation drum 41C is close to the left rotation drum 41A and the right rotation drum 41B. Thus, the three rotating drums 41A, 41B, and 41C can be arranged side by side with substantially no gap in the left-right direction.

  Since the drive shaft 120 passes through all the rotary drums 41A, 41B, 41C, the gear members 121, 122 and the electric motor 123 of the central rotary drive mechanism 43C are connected to the left end side of the three rotary drums 41A, 41B, 41C. In addition, the center origin detecting means 44C can be arranged on the right end side of the three rotating drums 41A, 41B, 41C with good balance, and the drum device 17 can be configured compactly.

  The central rotation drive mechanism 43C has a connection pin 124 that passes through the drive shaft 120 in the direction orthogonal to the axis, and a pin engagement portion 75b formed on the central rotation drum 41C so that the connection pin 124 engages. The drive shaft 120 can be reliably connected to the central rotary drum 41C so as not to be relatively rotatable with a simple structure, and the drive force from the drive shaft 120 to the central rotary drum 41C can be reliably transmitted via the connection pin 124. Can communicate.

  The pin engaging portion 75b is formed of an elongated groove 75b formed in the left annular end wall 75 of the central rotary drum 41C so that the connecting pin 124 engages from the left side. Therefore, the drive shaft 120 is connected to the central rotary drum 41C. It is possible to further simplify the structure in which the relative rotation is impossible.

  The central origin detection means 44C has a detected part 150 provided on the right end side portion of the drive shaft 120 and an origin detection sensor 155 that detects the origin position via the detected part 150. The detection can be performed using the drive shaft 120 effectively. Since the detected part 150 is formed by the shielding member 151 and the origin detection sensor 155 includes the optical sensor 155 having the light emitting part 155b and the light receiving part 155c, the origin position can be reliably detected.

  The left rotation drive mechanism 43A has a gear member 100 attached to the left end of the left rotation drum 41A opposite to the center rotation drum 41C, and the detected portion 130 of the left origin detection means 44A is attached to the gear member 100. Since it is provided integrally (the shielding member 131 is integrally formed), the right rotation drive mechanism 43B is a gear attached to the right end of the right rotation drum 41B opposite to the center rotation drum 41C. Since the member 110 is provided and the detected portion 140 of the right origin detecting means 44B is integrally provided on the gear member 110 (the shielding member 141 is integrally formed), the number of parts is reduced and the structure is simplified. Can be

  The rotation support mechanism 120 has a support case 80 that extends in the left-right direction and is attached to the base member 45 and on which the three rotation drums 41A, 41B, and 41C are externally fitted. Since part of 41B and 41C is rotatably supported and the drive shaft 120 penetrates the support case 80, the three rotary drums 41A, 41B and 41C are reliably stabilized and supported rotatably. In addition, the drive shaft 120 can be arranged so as not to obstruct the rotating drums 41A, 41B, 41C.

  The support case 80 has a pair of split support cases 81 and 82 arranged side by side in the left-right direction. The drive shaft 120 is rotated relative to the central rotary drum 41C between the pair of split support cases 81 and 82. Since the connecting pins 124 that cannot be connected are disposed, the drive shaft 120 can be connected to the central rotating drum 41C so as not to be relatively rotatable without the support case 80 interfering.

  Since the left end of the left rotating drum 41A is supported by the left split support case 81 via the bearing member 87, and the right end is supported by the left split support case 81 and the drive shaft 120 via the bearing member 86. The right rotating drum 41B has both left and right ends supported by the right split support case 82 via bearing members 91 and 90, and the center rotating drum 41C has a left end connected to the connecting pin 124. Since it is connected and supported, and its right end is supported by the right split support case 82 via the bearing member 91, the three rotating drums 41A, 41B, and 41C can be rotatably provided in a very stable state. In addition, there is a very low risk of rotational blurring occurring on the rotating drums 41A, 41B, 41C.

  Each of the divided support cases 81 and 82 includes a case main body 81a and 82a having a U-shaped cross section, and substrates 81b and 82b attached to the open ends of the case main bodies 81a and 82a. 82 has a highly rigid structure, and the drum peripheral walls 50, 60, 70 of the three rotary drums 41A, 41B, 41C are light-transmitting, and the drum peripheral walls 50, 60, 70 are illuminated from the inside. Since the plurality of LEDs 57, 67, 77 are mounted on the substrates 81b, 82b, the rotation support of the rotating drums 41A, 41B, 41C and the equipment of the plurality of LEDs 41A, 41B, 41C for decorating the rotating drums 41A, 41B, 41C are provided. Can be achieved by the divided support cases 81 and 82, which is advantageous in simplifying the structure.

  The drum peripheral wall 50 on which the design of the left rotating drum 41A is formed has three divided peripheral walls 51, 52, 53 that are divided in the circumferential direction, and the three divided peripheral walls 51, 52, 53 are coupled to each other. Therefore, each divided peripheral wall 51, 52, 53 can be injection-molded, and the symbols can be integrally formed on the drum peripheral wall 50, and the load of providing a plurality of symbols on the drum peripheral wall 50 can be reduced.

  Each divided peripheral wall 51, 52, 53 is integrally formed by injection molding together with a pattern having projections and depressions. Here, the direction of mold release from the mold after injection molding of each drum peripheral wall 51, 52, 53 is defined as the pattern projection / depression direction. Therefore, the restriction on the shape of the pattern having unevenness can be suppressed, that is, the design of the design can be enhanced by making the pattern shape as desired.

  Since each division | segmentation surrounding wall 51,52,53 was formed by the in-mold shaping | molding which integrates a sheet-like lens in the inner surface part, each division | segmentation surrounding wall 51,52,53 can be appropriately illuminated now. Since there is no need to separately attach a sheet-like lens or an alternative lens, the assembly load of this lens can be reduced.

  Since the left rotating drum 41A has a pair of annular end walls 55 and 56 coupled to the left and right ends of the drum peripheral wall 50, the rigidity of the left rotating drum 41A can be increased, and the left and right ends of the drum peripheral wall 50 can be increased. A pair of mounting recesses 50a and 50b are formed in the section, and the pair of mounting recesses 50a and 50b are coupled with the pair of annular end walls 55 and 56 fitted together. Can increase the sex.

  Each of the divided peripheral walls 51, 52, 53 has a pair of inner flange portions 51a, 52a, 53a that project from the vicinity of both left and right ends to the axis a side to form part of the pair of mounting recesses 50a, 50b. In the state where the inner flange portions 51a, 52a / 52a, 53a / 53a, 51a of the two adjacent divided peripheral walls 51, 52/52, 53/53, 51 and the annular end walls 55, 56 are overlapped in the left-right direction. Since the screws 59 are fastened, the drum peripheral walls 51, 52, 53 and the annular end walls 55, 56 can be firmly coupled to each other.

  The three divided peripheral walls 51, 52, 53 and the pair of annular end walls 55, 56 are configured so that they can be assembled only when they have a normal positional relationship in the circumferential direction and the axial direction. It is possible to prevent the 41A from being improperly assembled, that is, to prevent the left rotating drum 41A from being assembled so that the symbol at the origin position does not become a fixed position, thereby improving the assembling property of the left rotating drum 41A.

  Since the three divided peripheral walls 51, 52, and 53 are configured so as not to be assembled in a state that is not in a normal positional relationship, an incorrect assembly of the three divided peripheral walls 51, 52, and 53 can be immediately known. . In addition, the left annular end wall 55 is in a normal position with respect to the three divided peripheral walls 51, 52, 53 in a state where the three divided peripheral walls 51, 52, 53 are assembled in a normal positional relationship. Since it is configured so that it cannot be fitted into the mounting recess 50a in a state that is not related, incorrect assembly of the left rotating drum 41A can be reliably prevented.

  A plurality of positioning holes 50f are formed in the inner flange portions 51a, 52a, and 53a of the three divided peripheral walls 51, 52, and 53, and a plurality of positioning pins 55d that can be engaged with the plurality of positioning holes 50f are provided in a left annular shape. Only when the left annular end wall 55 is in a normal positional relationship with respect to the three divided peripheral walls 51, 52 and 53, the plurality of engagement pins 55d are formed in the plurality of engagement holes 50f. Since the left annular end wall 55 is engaged with the mounting recess 50a, the wrong assembly of the left rotating drum 41A can be reliably and easily prevented.

  Since the drum peripheral wall 50 of the left rotating drum 41A has three ridge lines 50d extending in the left-right direction and three partial cylinders 50c serving as curved outer surfaces respectively positioned between the three ridge lines 50d, the left rotating drum The curvature of the outer surface of the drum peripheral wall 50 of 41A can be made smaller than the curvature of the circle having the diameter of the left rotating drum 41A, and the degree to which the symbols displayed when the rotation of the left rotating drum 41A stops rotating is suppressed. be able to.

  In particular, the left rotating drum 41A has a relatively small diameter, and accordingly, it is required to appropriately increase the circumferential size of each symbol. However, in the conventional rotating drum structure, the diameter of the rotating drum is reduced by reducing the diameter of the rotating drum. Since the curvature increases, the extent to which the symbols displayed when the rotation of the rotating drum stops is increased. This can be prevented to make each symbol easy to see.

  The right rotating drum 41B and the central rotating drum 41C have the same effects as the left rotating drum 41A.

  The two origin detection sensors 135, 145/135, and 155 are configured so that their mounting states are reversed, and the sensor mounting member 160 having the same structure is used for mounting the origin detection sensors 135, 145, and 155 that are reversed. Since each sensor mounting member 160 is formed in a symmetrical structure in the front and back direction for use, a plurality of sensor mounting members 160 for mounting the three origin detection sensors 135, 145, 155 to the base member 45 are used as a common sensor mounting member. 160, that is, the types of sensor mounting members 160 can be reduced, and the assembly load of the three origin detection sensors 135, 145, 155 to the base member 45 can be suppressed.

  The sensor attachment member 160 has a rectangular case portion 161 and an attachment piece 162 protruding from one end portion of the rectangular case portion 161. Since the attachment piece 162 is positioned on the base member 45 and attached with a screw, therefore, In addition, the mounting piece 162 is formed with a positioning hole 162a for engaging positioning portions 171a, 172a, 173a provided in the base member 45 and a screw hole 162b. The base member 45 can be easily positioned and attached.

  Second positioning holes 161b are formed in the pair of front and back wall portions 161a of the rectangular case portion 161 so that the second engaging portions 171b, 172b, and 173b for positioning provided on the base member 45 can be engaged with each other. Therefore, the sensor attachment member 160 can be positioned and attached to the base member 45 in a stable state.

  Since the three rotating drums 41A, 41B, 41C are mounted on the lower end side portion of the center accessory 15 so as to face the screen of the image display 16 and the game area 4a, the effect by the image display 16 and 3 It is possible to enhance the relevance and unity of effects by the individual rotating drums 41A, 41B, and 41C. Since the drum cover 46 having the partial cylindrical cover portion 46a shaped along the upper surface portion and the front surface portion of the drum peripheral walls 50, 60, 70 of the three rotary drums 41A, 41B, 41C is provided, the partial cylindrical cover portion 46a The drum peripheral walls 50, 60, and 70 can be displayed outside in a guarded state so that the game balls do not hit the drum peripheral walls 50, 60, and 70 facing the game area 4a.

  As described above, the three rotary drums 41A, 41B, and 41C are arranged side by side in the left-right direction so as to be rotatable about the common axis a, and are adjacent to each other in the left-right direction. Since 41A, 41B, and 41C have axial lengths longer than their diameters, the three rotating drums 41A, 41B, and 41C are elongated in the left-right direction, and an image is formed on the lower end portion of the center accessory 15. It can be arranged so as to face the screen of the display 16 and the game area 4a, so that a high impact can be given in the case of a game effect. Further, since the partial cylindrical cover portion 46a of the drum cover 46 is disposed on the upper side of the stage 13c of the center accessory main body 15a so as to protrude forward, the partial cylindrical cover portion 46a (the rotating drums 41A, 41B, 41C). ) Can be used effectively to provide the stage 13c.

  The above embodiment may be partially changed as follows.

(1) The right rotation drum 41B, the right rotation drive mechanism 43B, and the right origin detection means 44B may be omitted. In this case, a rotational drive mechanism 43C that rotationally drives one rotational drum 41C of the pair of rotational drums 41A and 41C is disposed concentrically with the shaft center a and is connected to the one rotational drum 41C so as not to be relatively rotatable. And an electric motor 123 that inputs a driving force to the driving shaft 120 from a portion opposite to the one rotating drum 41C with respect to the other rotating drum 41A of the driving shaft 120. Will be provided.

(2) The left rotation drum 41A, the left rotation drive mechanism 43A, and the left origin detection means 44A may be omitted. In this case, the origin detecting means 44C for detecting the origin position of one rotating drum 41C of the pair of rotating drums 41B and 41C is disposed on the opposite side to the one rotating drum 4C with respect to the other rotating drum 41B. It will be.

(3) In the left rotating drum 41A, both of the pair of annular end walls 55 and 56 have a plurality of divided peripheral walls 50, 51, and 53 that are assembled in a regular positional relationship. It may be configured such that it cannot be fitted into the mounting recesses 50a and 50b in a state where it does not have a normal positional relationship with respect to the divided peripheral walls 50, 51 and 53.
(4) The drum peripheral wall 50 of the left rotating drum 41A may have three smooth outer surfaces respectively positioned between the three ridge lines 50d. That is, you may form each division | segmentation surrounding wall 50, 51, 52 of the drum surrounding wall 50 in flat form.

(5) The drum peripheral wall 50 of the left rotating drum 41A may have four or more ridge lines 50d and four or more curved outer surfaces or smooth outer surfaces respectively positioned between the plurality of ridge lines 50d. That is, the drum peripheral wall 50 may be constituted by four or more divided peripheral walls, and each divided peripheral wall may be formed in a cylindrical shape or a flat plate shape.
(6) The shape and size (diameter, left and right length, etc.) of the left rotating drum 41A can be changed as appropriate.
(7) The right rotating drum 41B and the central rotating drum 41C may be changed in the same manner as (3), (4), (5), and (6).

  In addition to the matters disclosed in the embodiments, various modifications may be added without departing from the spirit of the present invention. Further, the present invention may be applied to drum devices of various pachinko gaming machines other than the above-described embodiments, and may be applied to drum devices of gaming machines such as slot machines other than pachinko gaming machines.

a Axis 1 Pachinko machine 4 Game board 15 Center accessory 15a Center accessory body (frame member)
16 Image display 17 Drum device 40 Drum case 41A, 41B, 41C Rotating drum 42 Rotation support mechanism 43A, 43B, 43C Rotation drive mechanism 44A, 44B, 44C Origin detection means 45 Base member 46 Drum cover 46a Partial cylindrical cover portion 50 60, 70 Drum peripheral walls 50a, 50b, 60a, 60b, 70a, 70b Mounting recess 50c Partial cylindrical surface (curved outer surface)
50d Ridge line 50f Positioning holes 51, 52, 53, 61, 62, 63, 71, 72, 73 Split peripheral walls 51a, 52a, 53a Inner flange portions 55, 56, 65, 66, 75, 76 Annular end walls 55d, 56c, 75d Positioning pins 57, 67, 77 LED
59 Screw 75b Pin engaging part (concave groove)
80 Support cases 81, 82 Split support cases 85, 86, 87, 88, 89, 90, 91 Bearing members 81a, 82a Case bodies 81b, 82b Substrate 100, 110, 121 Gear members 102, 112, 123 Electric motor 120 Drive shaft 124 Connection pin (connection member)
130, 140, 150 Detected part 131, 141, 151 Shield member 135, 145, 155 Origin detection sensor 135a Main body 135b Light emitting part 135c Light receiving part 160 (136, 146, 156) Sensor mounting member 161 Rectangular case part 161a Wall part 161b Second positioning hole 162 Mounting piece 162a Positioning hole 162b Screw hole

Claims (5)

In a gaming machine comprising a plurality of rotating drums that are rotatable about a common axis and arranged in parallel in the axial direction, and a rotation drive mechanism that rotationally drives the plurality of rotating drums, respectively.
A center role equipped on the game board, and an image display mounted on the center role so that the screen faces the inner area of the frame member;
The plurality of rotating drums are mounted on one end side portion of a center accessory so as to face the screen and a game area in which a game ball can move,
A gaming machine comprising a drum cover having a partial cylindrical cover portion that is shaped along at least one of an upper surface portion and a front surface portion of a drum peripheral wall of the plurality of rotating drums.   The gaming machine according to claim 1, wherein the plurality of rotating drums are attached to a lower end portion of a center accessory.   A stage where a game ball can roll is provided at a lower end portion of the frame member of the center accessory, and the partial cylindrical cover portion is disposed on the upper side of the stage so as to project forward. 2. The gaming machine according to 2.   The gaming machine according to claim 1, wherein the plurality of rotating drums are close to each other in an axial direction.   5. The gaming machine according to claim 1, wherein each of the rotating drums has an axial length longer than a diameter of the rotating drum.