JP5820180B2 - Pachinko machine - Google Patents

Description

  The present invention relates to a pachinko machine in which a glass door through which a game board can be seen is supported so as to be openable and closable with respect to a main body frame, and the main body frame is supported so as to be openable and closable with respect to a machine frame.

  In general, a pachinko machine has a vertical rectangular machine frame (outer frame) installed in an island facility of a game arcade, and a main body frame (front surface) attached to the machine frame in a door-like manner via a hinge portion. Frame), a game board housed inside the main body frame, and a glass door attached to the front of the main body frame via another hinge portion so as to be opened and closed, and formed at the center of the glass door A transparent plate that allows viewing of the game board is attached to the opening. A liquid crystal display device, which is one of the electrical components, is attached to the back of the main body frame, and a control processing device (control board) that controls the game as other electrical components, and a prize ball by a prize ball payout device A payout board for controlling payout, a power supply board for supplying power to each part, an external terminal board for outputting various information relating to the pachinko machine such as the number of winning balls and the open / closed state of the door to the hall computer of the game hall are attached.

  In a pachinko machine that is roughly configured in this way, usually a detection switch is provided on each of the back and front of the main frame to prevent the player from opening the glass door and main frame without permission. The open / close state of the main body frame relative to the machine frame and the open / close state of the glass door relative to the main body frame are individually detected based on the output signals of these two detection switches. However, since the open / closed state of the glass door and the main body frame must be detected using separate detection switches, the installation space for each of these detection switches increases, or each detection switch is electrically connected to the dispensing board or the control board. There is a problem in that the wiring harnesses to be connected are complicated and the cost is high and the reliability is lowered.

  Therefore, conventionally, when both the glass door and the main body frame are closed, pressure is applied from both sides in the door opening and closing direction to detect the pressure state, and either one or both of the glass door and the main body frame are opened. Is equipped with detection means that detects the pressure release state by releasing the pressure from one side or both sides, and this detection means can detect the open / closed state of the glass door and the open / closed state of the main body frame. The pachinko machine which was made is proposed (for example, refer patent document 1). This detection means includes a mounting plate fixed to the free end opposite to the hinge portion in the main body frame, a plunger supported by the mounting plate so as to be movable in the front-rear direction via a bearing sleeve, and elastically moving the plunger backward. It consists of an urging spring and a push switch attached to the back of the glass door at a position where it can abut against the front end of the plunger. It is a unitized part.

  In a pachinko machine using such a detection means, when both the glass door and the main body frame are closed, the plunger protrudes forward against the biasing force of the spring by the rear end abutting against the machine frame. Therefore, the actuator of the push switch is pushed in contact with the front end of the plunger, and either an on / off signal is output from the push switch. On the other hand, when the main body frame is opened with respect to the machine frame, the plunger moves rearward due to the urging force of the spring when the rear end thereof is separated from the machine frame, and accordingly, the actuator is moved to the return spring built in the push switch. Since the projection is energized, an on / off switching signal is output from the push switch. In addition, when the glass door is opened with respect to the closed body frame, the actuator moves away from the front end of the plunger protruding forward, and in this case as well, the actuator is biased by the return spring built in the push switch. An on / off switching signal is output from the push switch. Therefore, it is possible to detect individual open / close states of the glass door and the main body frame by using a single detection means including a plunger, a push switch, and the like.

Japanese Patent No. 4159724

  However, in the conventional pachinko machine disclosed in Patent Document 1, a unit part integrated with a mounting plate incorporating a plunger, a spring, and the like is attached to the free end side of the main body frame, and the plunger is attached to the free end side of the glass door. Because the detection means is configured by attaching a push switch that can be moved toward and away from the front end, the parts installation space for the detection means is distributed to both the main body frame and the glass door, and unit parts and push switches can be installed individually. There was a problem that the work of attaching to the position was troublesome. In addition, the push switch, which is a detection switch, must be electrically connected to the payout board, control board, etc. provided on the back side of the body frame using wire harnesses, but the push switch is on the free end side of the glass door. Therefore, it is necessary to route the wire harnesses from the free end side of the glass door to the payout board or the control board of the main body frame via the hinge part on the base end side. There was also the problem of becoming very complicated.

  The present invention has been made in view of such a state of the art, and the purpose thereof is to individually detect the open / closed state of the glass door and the main body frame by a single open / close detection means provided on the main body frame. It is to provide a pachinko machine that can.

In order to achieve the above-described object, the present invention provides a machine frame, a main body frame pivotally supported by the machine frame via a first hinge mechanism, and a second hinge with respect to the main body frame. A pachinko machine comprising: a glass door pivotally supported via a mechanism; and an opening / closing detection means capable of detecting an opening operation of the main body frame relative to the machine frame and an opening operation of the glass door relative to the main body frame. The open / close detection means includes a support shaft provided in the main body frame and extending in the vertical direction, a pair of rotation levers arranged to be rotatable on the support shaft, and both the rotation levers, the machine frame and the A spring member that rotates and urges the glass doors in opposite directions to each other, and a light transmission type photosensor that blocks an optical path from the light emitting unit to the light receiving unit by the rotation of the two rotating levers, The optical path of the photosensor is When the inner region and the outer region are divided into two along the circular arc centered on the center, the operating portion provided on the tip side of one of the rotating levers rotates in the inner region and the other rotating lever The actuating portion provided on the tip side of the lens is rotated in the outer region .

In the pachinko machine configured as described above, when both the glass door and the main body frame are closed, the pair of rotation levers abut on the front surface of the machine frame and the rear surface of the glass door, respectively, so that the tip side of both rotation levers Since both the operating parts provided in are in the initial position for blocking the optical path of the photosensor, a signal indicating the door closed state is output from the photosensor. When the main frame is opened relative to the machine frame, one rotating lever that has been in contact with the machine frame until then receives the biasing force of the spring member and rotates in one direction around the support shaft. Along with this, one of the operating parts deviates from one region that bisects the optical path of the photosensor, so that about half of the amount of light emitted from the light emitting part reaches the light receiving part, so that a signal indicating the door open state from the photosensor. Is output. Similarly, when the glass door is opened with respect to the main body frame, the other rotating lever that has been in contact with the glass door until then receives the biasing force of the spring member and rotates in the other direction around the support shaft. Along with this, the other operating part deviates from the two areas that bisect the optical path of the photosensor, so that approximately half of the amount of light emitted from the light emitting part reaches the light receiving part, thereby indicating a signal indicating the door open state from the photosensor. Is output. Here, since the pair of rotating levers, the spring members, and the photosensors constituting the open / close detection means are all centrally arranged on the main body frame, the glass door and the main body frame are separated by a single open / close detection means provided on the main body frame. The open / closed state can be individually detected, and the wiring harnesses connected to the photosensor can be easily routed only on the main body frame side.

  In the above configuration, the base member is detachably attached to the main body frame, and the shaft hole of both rotary levers and the winding portion of the torsion coil spring as the spring member are inserted into the support shaft provided on the base member. In addition, both arm portions projecting outward from the winding portion of the torsion coil spring are respectively hooked on the rotation lever, and the first stopper portion for restricting the rotation angle of the lower rotation lever on the base member If the second stopper portion for restricting the rotation angle of the upper rotation lever is provided on the lower rotation lever, all the components of the open / close detection means are incorporated in the base member and handled as one unit product. In addition, the rotating levers are stably held at a certain opening angle in the state of such a unit product, so that the assembly workability of the open / close detection means with respect to the main body frame is remarkably improved. It is possible.

The pachinko machine of the present invention is provided with an opening / closing detection means provided on the main body frame and capable of detecting the opening operation of the main body frame with respect to the machine frame and the opening operation of the glass door with respect to the main body frame. A pair of rotary levers arranged in a rotatable manner on the shaft, a spring member that urges these rotary levers to rotate opposite to each other toward the machine frame and the glass door, and a light emitting unit by the rotation of both rotary levers And a light transmission type photosensor that blocks the optical path from the light receiving portion to the light receiving portion, and an operating portion provided on the tip side of both rotary levers separately rotates the inner region and the outer region that bisect the optical path of the photosensor. Since it is configured to move, the open / close state of the glass door and the main body frame can be individually detected by a single open / close detection means provided on the main body frame, and the wire harnesses connected to the photosensor Pull Turn can be performed only on the body frame side.

1 is a perspective view of a pachinko machine according to an embodiment of the present invention. It is a perspective view of the state which opened the glass door of the pachinko machine shown in FIG. It is a perspective view of the state which opened the glass door and main body frame of the pachinko machine shown in FIG. It is a rear view of the pachinko machine shown in FIG. It is a perspective view of the door opening / closing detection apparatus with which the pachinko machine of FIG. 1 is equipped. It is a disassembled perspective view of this door opening / closing detection apparatus. It is explanatory drawing of the photosensor with which this door opening / closing detection apparatus is equipped. It is operation | movement explanatory drawing seen from the plane direction of this door opening / closing detection apparatus.

  An embodiment of the invention will be described with reference to the drawings. As shown in FIG. 1, a pachinko machine P according to an embodiment of the present invention is a vertically rectangular machine casing 1 installed in an island facility of a game arcade. A body frame 2 attached to the machine frame 1 so as to be opened and closed freely, and a glass door 3 attached to the front surface of the body frame 2 so as to be opened and closed like a door. A transparent plate 4 made of plastic or plastic is attached.

  As shown in FIGS. 2 and 3, an upper bearing body 5 and a lower bearing body (not shown) are fixed to the left frame portion of the machine frame 1, and the lower left corner below the lower bearing body. Is provided with a large speaker 6. On the other hand, first pins (not shown) are provided at both upper and lower ends of the left frame portion of the main body frame 2, and the main body is supported by supporting both the first pins on the upper bearing body 5 and the lower bearing body. A first hinge mechanism that supports the frame 2 so as to be openable and closable with respect to the machine frame 1 is configured.

  A game board 7 is accommodated inside the upper part of the main body frame 2, and the board surface (front surface) of the game board 7 is visible through the transparent plate 4. The game board 7 has a game area 9 defined by guide rails 8 and the like, and detailed explanation is omitted, but the game area 9 includes a variable display device, a start winning opening, a general winning opening, an attacker device, A game nail, a windmill, an outlet, etc. are provided. The main body frame 2 below the game board 7 is an installation part 2b that is covered with a glass door 3, and a launching device 10 that launches a game ball toward the game area 9 at the lower center of the installation part 2b. Is arranged.

  The right side frame part of the main body frame 2 is a free end side opposite to the first hinge mechanism, and the right side frame part is provided with a locking device 11 having a cylinder lock 11a. Although not shown, the locking device 11 includes a rear locking rod disposed on the back surface of the main body frame 2 and a front locking rod disposed on the front surface of the main body frame 2. In the normal state, the rear portion of the locking device 11 is provided. The main body frame 2 is locked to the machine frame 1 by the locking rod, and the glass door 3 is locked to the main body frame 2 by the front locking rod. Then, when a key (not shown) is inserted into the key hole of the cylinder lock 11a and this key is rotated in one direction (for example, clockwise), the rear locking rod is moved upward and the main body frame 2 is unlocked. Yes. Further, when the key inserted into the key hole of the cylinder lock 11a is rotated in the other direction (counterclockwise), the front locking rod is moved upward and the glass door 3 is unlocked. Further, a door opening / closing detection device 30 to be described later is incorporated in the lower right corner on the free end side of the main body frame 2, and the door opening / closing detection device 30 opens and closes the opening / closing state of the main body frame 2 with respect to the machine frame 1 and the glass door 3. The open / closed state with respect to the main body frame 2 can be individually detected.

  Second pins (not shown) are provided at both upper and lower ends of the left frame portion of the glass door 3, and both the second pins are pivotally supported by upper and lower support plates 2 a protruding from the left frame portion of the main body frame 2. By doing so, a second hinge mechanism that supports the glass door 3 so as to be openable and closable with respect to the main body frame 2 is configured.

  Returning to FIG. 1, a large opening 3 a facing the board surface of the game board 7 is opened in the glass door 3, and the opening 3 a is closed by the transparent plate 4. A relatively small speaker 12 is provided on each of the left and right sides of the front surface of the glass door 3. The speaker 12 and the large speaker 6 described above produce various sound effects relating to the game. Yes. Further, at the lower front portion of the glass door 3, the upper tray 13 for receiving game balls paid out from a prize ball dispensing device (described later) disposed on the rear surface of the game board 7 and the upper tray 13 are discharged. A lower tray 14 for storing the game balls and a push button 15 that can be pressed by the player are provided, and an operation handle for adjusting the firing strength of the launching device 10 is provided on the right side of the upper tray 13. 16 is disposed.

  As shown in FIG. 4, on the back side of the pachinko machine P, there are a main control board 17 that performs main processing relating to the game, and various devices such as a variable display device and a speaker in response to a command from the main control board 17. Depending on the sub control board 18 to be controlled, the above-described prize ball payout device 19, the payout control board 20 that controls the prize ball payout device 19 in response to a command from the main control board 17, and the rotation amount of the operation handle 16. A firing control board 21 that controls the operation of the launching apparatus 10 and an external terminal board 22 that outputs various information such as detection signals of the door opening / closing detection apparatus 30 and the number of jackpots to the hall computer of the game hall are provided.

  As shown in FIGS. 5 and 6, the door opening / closing detection device 30 includes a base member 32 on which a support shaft 31 extending in the vertical direction is erected, and a lower rotation lever 33 that is rotatably supported by the support shaft 31. The upper rotating lever 34, the torsion coil spring 35 (spring member) 35 that urges both the rotating levers 33 and 34 toward the machine frame 1 and the glass door 3 in opposite directions, and the both rotating levers 33 and 34. The rotating levers 33, 34, the torsion coil spring 35, and the photosensor 36 are incorporated in the base member 32 and configured as one unit component. Yes.

  The base member 32 is provided with a pedestal 32a surrounding the lower end of the support shaft 31, and the pedestal 32a is formed with a notch 32b which is a first stopper portion. A pair of mounting holes 32c are formed in the base member 32, and screws (not shown) are inserted into the mounting holes 32c and screwed into the main body frame 2 as shown in FIGS. The unit parts of the door opening / closing detection device 30 including the base member 32 are attached to the lower right corner of the main body frame 2.

  The lower rotation lever 33 includes a cylindrical portion 33b having a shaft hole 33a, an arm piece 33c protruding outward from the outer peripheral surface of the cylindrical portion 33b, and a first protruding in an L shape upward from the outer peripheral surface of the cylindrical portion 33b. A receiving portion 33d, which is a two-stopper portion, and a protrusion 33e protruding downward from the lower surface of the cylindrical portion 33b are formed, and the arm piece 33c has a first operating portion 33f in the vicinity of the tip portion. The upper rotary lever 34 is formed with a cylindrical portion 34b having a shaft hole 34a and an arm piece 34c that protrudes outward from the outer peripheral surface of the cylindrical portion 34b. The arm piece 34c has a second operating portion 34d on the distal end side. have. Then, the shaft hole 33a of the lower rotation lever 33 and the shaft hole 34a of the upper rotation lever 34 are sequentially inserted into the support shaft 31 with the torsion coil spring 35 interposed therebetween, and then a barbed screw 37 is attached to the upper end surface of the support shaft 31. By screwing in, both rotary levers 33 and 34 are rotatably supported by the support shaft 31 in a state in which they are prevented from falling off. Here, the first actuating part 33f and the second actuating part 34d protrude in opposite directions from the arm pieces 33c, 34c of the rotary levers 33, 34, but the rotational centers of the rotary levers 33, 34 (support shaft 31). The second operating portion 34d is set to be longer than the first operating portion 33f, and the first and second operating portions 33f and 34d rotate on arcs having different radii. It is like that.

  The torsion coil spring 35 has a winding portion 35a wound around the support shaft 31, and a pair of arm portions 35b and 35c protruding outward from both ends of the winding portion 35a. The arm portion 35 b is hooked on the arm piece 33 c of the lower rotation lever 33, and the other arm portion 35 c is hooked on the arm piece 34 c of the upper rotation lever 34. As a result, the lower rotary lever 33 and the upper rotary lever 34 are rotated and biased in opposite directions by receiving the elastic force of the torsion coil spring 35, and the rotation angle of the lower rotary lever 33 in the biasing direction is a protrusion. 33e is regulated by contacting one end of the notch 32b, and the rotation angle of the upper rotation lever 34 in the urging direction is regulated by the arm piece 34c contacting the receiving portion 33d. That is, a notch (first stopper portion) 32 b for restricting the rotation angle of the lower rotation lever 33 is provided on the base 32 a of the base member 32, and the rotation angle of the upper rotation lever 34 is restricted to the lower rotation lever 33. A receiving portion (second stopper portion) 33d is provided.

  The photo sensor 36 is an optical sensor called a photo interrupter that detects the presence or absence of blocking of transmitted light. As shown in FIG. 7, the photo sensor 36 is composed of a light emitting element 38 and a light receiving element that are arranged to face each other with a concave groove 36a interposed therebetween. 39. The light emitting element 38 is composed of, for example, an infrared light emitting diode, and the light emitting element 38 is a light emitting portion that is disposed on the inner bottom surface of the concave groove 36a and emits infrared light upward. The light receiving element 39 is formed of, for example, a phototransistor, and the light receiving element 39 is a light receiving portion that is disposed on the ceiling surface of the concave groove 36 a and receives infrared light emitted from the light emitting element 38. The path of infrared light emitted from the light emitting element 38 to the light emitting element 38 is an optical path 40, and when the light receiving element 39 receives infrared light from the light emitting element 38, a collector current proportional to the amount of received light is output. When the optical path 40 is interrupted and the amount of light received by the light receiving element 39 becomes zero, the collector current stops flowing.

  As shown in FIG. 5, the photosensor 36 is mounted on the base member 32 with the concave groove 36 a facing the support shaft 31, and the first operating portion 33 f of the lower rotary lever 33 and the upper rotary lever are mounted. The second operating portion 34 d of 34 can enter and leave the concave groove 36 a of the photosensor 36. As described above, since the first operating portion 33f and the second operating portion 34d have different lengths from the center of the support shaft 31, the optical path 40 of the photosensor 36 is connected to the support shaft 31 as shown in FIG. , The first actuating part 33f rotates in the inner area S1 that bisects the optical path 40, and the second actuating part 34d is the outer area that divides the optical path 40 in half. It will rotate in S2. Therefore, when both the first operating part 33f and the second operating part 34d are located in the optical path 40, the infrared light emitted from the light emitting element 38 is blocked by both the operating parts 33f and 34d and the light receiving element 39. Therefore, no collector current flows through the light receiving element 39. On the other hand, when one of the first operating part 33f and the second operating part 34d is retracted from the optical path 40, about half of the infrared light emitted from the light emitting element 38 is received by the light receiving element 39. A predetermined collector current flows through the light receiving element 39. Then, by outputting the change in the collector current of the light receiving element 39 from the photosensor 36, it is possible to detect the presence / absence of both operating portions 33f and 34d in the optical path 40 based on the output signal of the photosensor 36.

  As shown in FIG. 5, the door opening / closing detection device 30 configured in this way can be unitized by incorporating both rotary levers 33, 34, a torsion coil spring 35, a photosensor 36, and the like into the base member 32. The unit can be handled as one unit part at the time of parts management or transportation before being attached to the pachinko machine P. In addition, a notch (first stopper portion) 32b for restricting the rotation angle of the lower rotation lever 33 is provided on the base 32a of the base member 32, and the rotation angle of the upper rotation lever 34 is restricted to the lower rotation lever 33. Since the receiving portion (second stopper portion) 33d is provided, both the rotation levers 33 and 34 can be stably held at a constant opening angle in the state of such a unit product, and the door opening / closing detection device 30 can be 2 can be easily assembled. Hereinafter, the operation of the door opening / closing detection device 30 will be described mainly with reference to FIG.

  In the pachinko machine P according to the present embodiment, since the main body frame 2 is closed with respect to the machine frame 1 and the glass door 3 is closed with respect to the main body frame 2 in a normal state, FIG. ), The arm pieces 33c, 34c of the lower rotation lever 33 and the upper rotation lever 34 of the door opening / closing detection device 30 are in contact with the front surface of the machine frame 1 and the convex portion 3b on the rear surface of the glass door 3, respectively. Both arm pieces 33c and 34c are stopped at a position closest to the biasing force of the torsion coil spring 35 (referred to as an initial position). In this case, the first operating portion 33 f of the lower rotating lever 33 and the second operating portion 34 d of the upper rotating lever 34 are both in the concave groove 36 a of the photosensor 36, and both the operating portions 33 f and 34 d are separated from the light emitting element 38. Since the optical path 40 toward the light receiving element 39 is blocked, no collector current flows through the light receiving element 39, and an off signal indicating the door closed state is output from the photosensor 36.

  As shown in FIG. 8B, when the main body frame 2 is opened with respect to the machine frame 1 while rotating about the first hinge mechanism, the arm piece 33c is brought into contact with the front surface of the machine frame 1 until then. When the lower rotating lever 33 is rotated in the direction of the arrow Q1 by the biasing force of the torsion coil spring 35, the lower rotating lever 33 stops when the protrusion 33e comes into contact with one end of the notch 32b. When the lower rotation lever 33 rotates by a predetermined angle from the initial position in this way, the first operating portion 33f retreats from the inner region S1 of the optical path 40 and moves to the outside of the photosensor 36. About half of the infrared light is received by the light receiving element 39. As a result, since a predetermined collector current flows through the light receiving element 39, an ON signal indicating the door open state is output from the photosensor 36 due to the change in the collector current.

  Further, as shown in FIG. 8C, when the glass door 3 is opened with respect to the main body frame 2 while rotating around the second hinge mechanism, the arm piece 34c is moved up to the convex portion of the glass door 3 until then. When the upper rotating lever 34 that has been in contact with 3b is rotated in the direction of the arrow Q2 by the biasing force of the torsion coil spring 35, the upper rotating lever 34 is brought into contact with the receiving portion 33d of the lower rotating lever 33. Stops. When the upper rotation lever 34 rotates by a predetermined angle from the initial position in this way, the second operating portion 34d moves away from the outer area S2 of the optical path 40 and moves to the outside of the photosensor 36, so that light is emitted from the light emitting element 38. About half of the infrared light received by the light receiving element 39 is received. As a result, since a predetermined collector current flows through the light receiving element 39, an ON signal indicating the door open state is output from the photosensor 36 due to the change in the collector current. Note that unillustrated wire harnesses are connected to the photosensor 36, and these wire harnesses are connected to the external terminal board 22 via the payout control board 20 or the main control board 17 on the back side of the main body frame 2. As a result, when an ON signal indicating the door open state is output from the photo sensor 36, an alarm sound from the speakers 6 and 12 informs the outside that the main body frame 2 or the glass door 3 has been opened. The door opening signal can be transmitted to the hall computer of the game hall.

  As described above, in the pachinko machine P according to the present embodiment, the door opening / closing detection device 30 capable of detecting the opening operation of the main body frame 2 with respect to the machine frame 1 and the opening operation of the glass door 3 with respect to the main body frame 2 is the main body. The door opening / closing detection device 30 installed in the frame 2 includes a support shaft 31 extending in the vertical direction, a lower rotation lever 33 and an upper rotation lever 34 that are rotatably arranged on the support shaft 31, and both of these. The torsion coil spring 35 that urges the rotation levers 33 and 34 to rotate opposite to each other toward the machine frame 1 and the glass door 3 and the rotation levers 33 and 34 turn toward the light receiving element 39. A light-transmitting photosensor 36 that blocks the optical path 40, and first and second actuating portions 33 f and 34 d provided on the front end sides of the rotary levers 33 and 34 pass through the optical path 40 of the photosensor 36. Since the inner region S1 and the outer region S2 to be separated are separately rotated, the open / close state of the glass door 3 and the main body frame 2 is individually determined by a single door open / close detection device 30 installed in the main body frame 2. The wiring harnesses connected to the photo sensor 36 can be easily routed only on the main body frame 2 side.

  In addition, a base member 32 detachably attached to the main body frame 2 is provided, and shafts 33 a and 34 a of both rotary levers 33 and 34 and a torsion coil spring 35 are wound around a support shaft 31 erected on the base member 32. The rotating portion 35a is inserted, and both arm portions 35b and 35c protruding outward from the winding portion 35a of the torsion coil spring 35 are hooked on the arm pieces 33c and 34c of the rotating levers 33 and 34, respectively. The base member 32 is provided with a notch (first stopper portion) 32b for restricting the rotation angle of the lower rotation lever 33, and the receiving portion (second portion) for restricting the rotation angle of the upper rotation lever 34 to the lower rotation lever 33. Since the stopper portion 33d is provided, not only can the components of the door opening / closing detection device 30 be incorporated in the base member 32 and handled as a single unit product, Since the two rotary levers 33, 34 in the cull Unit Product state is stably held at a predetermined opening angle, it can significantly enhance the assembling workability with respect to the body frame 2 of the door opening and closing detecting device 30.

  In the above embodiment, the case where the door opening / closing detection device 30 is attached to the lower right corner of the main body frame 2 has been described. However, the door opening / closing detection device 30 can be installed anywhere on the free end side of the main body frame 2. For example, the door opening / closing detection device 30 may be attached to the upper right corner of the main body frame 2.

DESCRIPTION OF SYMBOLS 1 Machine frame 2 Main body frame 3 Glass door 7 Game board 9 Game area 11 Locking device 17 Main control board 18 Sub control board 22 External terminal board 30 Door opening / closing detection apparatus 31 Support shaft 32 Base member 32a Base 32b Notch (first stopper) Part)
32c Mounting hole 33 Lower rotation lever 33a Shaft hole 33b Cylindrical part 33c Arm piece 33d Receiving part (second stopper part)
33e Protruding portion 33f First operating portion 34 Upper rotating lever 34a Shaft hole 34b Cylindrical portion 34c Arm piece 34d Second operating portion 35 Torsion coil spring (spring member)
35a Winding part 35b, 35c Arm part 36 Photo sensor 36a Concave groove 37 Barbed screw 38 Light emitting element (light emitting part)
39 Light receiving element (light receiving part)
40 optical path S1 inner area S2 outer area P Pachinko machine

Claims (2)

A machine frame, a main body frame pivotally supported by the machine frame via a first hinge mechanism, and a glass door pivotally supported by the main body frame via a second hinge mechanism. And a pachinko machine comprising an opening / closing detection means capable of detecting the opening operation of the main body frame with respect to the machine frame and the opening operation of the glass door with respect to the main body frame,
The open / close detection means is provided on the main body frame and extends in the vertical direction, a pair of rotary levers arranged in a rotatable manner on the support shaft, and both the rotary levers, the machine frame and the glass door. It has a spring member which biases rotation, and a light transmissive photosensor that the light path is blocked toward the light receiving portion from the light emitting portion by the rotation of the two rotary levers in opposite directions toward the,
When the optical path of the photosensor is divided into an inner region and an outer region along an arc centered on the support shaft, an operating portion provided on the tip side of one of the rotating levers circulates in the inner region. The pachinko machine is characterized in that , while moving, an operating portion provided on the tip end side of the other rotating lever rotates in the outer region .   2. The torsion coil spring according to claim 1, further comprising a base member detachably attached to the main body frame, the shaft provided on the base member and the torsion coil spring as the spring member. A winding portion, and both arm portions of the torsion coil spring protruding outward from the winding portion are respectively hooked on the rotation lever, and the lower lever side of the rotation lever is attached to the base member. A pachinko machine having a first stopper portion for restricting a rotation angle and a second stopper portion for restricting a rotation angle of the upper rotation lever on the lower rotation lever.