JP2009189719A - Pachinko game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress the fraudulent actions of inserting a piano wire to a game board while a front frame is closed. <P>SOLUTION: In the closed state of the front frame, the front plate part 91 of each of an upper left clamp 86, a lower left clamp 87, an upper right clamp 88 and a lower right clamp 89 faces a front flange part 77 from the front, the rear plate part 92 of each of the upper left clamp 86 to the lower right clamp 89 faces a rear flange part 73 from the rear part, and the connection plate part 93 of each of the upper left clamp 86 to the lower right clamp 89 faces both of the front flange part 77 and the rear flange part 73 from the outer side. On the basis of the unreasonable operation of the front frame 4 to an open state, even when a gap is generated between the front flange part 77 and the rear flange part 73, since each of the upper left clamp 86 to the lower right clamp 89 covers the gap between the front flange part 77 and the rear flange part 73 in a U shape, it becomes difficult to conduct the fraudulent action of inserting the piano wire to the game board through the gap between the front flange pat 77 and the rear flange part 73. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a pachinko gaming machine provided with a lock mechanism that locks a front frame in a closed state.

Some pachinko machines have a configuration in which a front frame is mounted in front of a rear frame. This rear frame supports the game board, and the front frame can be rotated around the vertical axis on the left side between the closed state that covers the rear frame from the front and the open state that opens the rear frame forward Has been. The front frame supports a transparent window, and the game board in the rear frame is covered with a window so that it can be visually recognized from the front with the front frame closed. Some of the pachinko gaming machines are provided with a lock mechanism that locks the front frame in a closed state on the right side opposite to the shaft. The purpose of this locking mechanism is to prevent fraudulent action by manipulating the front frame from the closed state to the open state and picking the game ball by hand into the winning hole of the game board. And a plate-like engaged portion. The engaging portion and the engaged portion are opposed to each other with a gap in the front-rear direction in the closed state of the front frame, and an unauthorized person changes the front frame from the closed state to the open state in the closed state of the front frame. When the operation is directed, the front frame is prohibited from being operated in an open state based on the contact between the engaging portion and the engaged portion.
JP 2003-220250 A

  In the case of the pachinko gaming machine described above, when the fraudster operates the front frame from the closed state to the open state with the front frame closed, the front frame moves in the same direction, so there is a gap between the front frame and the inner frame. Occurs. For this reason, there is a risk that fraudulent acts such as inserting a fraudulent instrument such as a piano wire into the game board through the gap between the front and rear frames and opening the door by hooking the fraudulent instrument on the door of the variable prize opening. There is.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a pachinko gaming machine that can make an unauthorized act of inserting an unauthorized device into a game board from between a front frame and a rear frame difficult. Is.

1. Description of Pachinko Gaming Machine According to Claim 1 The pachinko gaming machine according to claim 1 is characterized in that it includes [1] gaming board to [9] guard members.
[1] The game board has a game area in which a game ball can roll. Reference numeral 18 in FIG. 2 corresponds to a game board, and reference numeral 24 in FIG. 2 corresponds to a game area.
[2] The rear frame supports the game board, and the inner frame 2 in FIG. 2 corresponds to the rear frame.
[3] The launch rail is provided on the rear frame so as to be positioned below the game board, and is used for launching a game ball on the game board. Reference numeral 16 in FIG. 2 corresponds to a firing rail.
[4] The front frame is provided on the rear frame, and is movable between a closed state in which the rear frame is covered from the front on the player side and an open state in which the rear frame is opened forward. Reference numeral 4 in FIG. 1 corresponds to the front frame.
[5] The window is provided in the front frame, and covers the game area of the game board so that it can be visually recognized from the front with the front frame closed. Reference numeral 23 in FIG. 1 corresponds to a window.
[6] The rear guard frame is provided on the rear frame so as to be positioned on the outer peripheral portion of the game board, and has a rear guard portion and a rear flange portion. The rear guard part protrudes forward from the rear frame and surrounds the game board. The rear flange portion protrudes outward from the front end portion of the rear guard portion, and surrounds the rear guard portion. Reference numeral 71 in FIG. 2 corresponds to the rear guard frame, reference numeral 72 in FIG. 2 corresponds to the rear guard portion, and reference numeral 73 in FIG. 2 corresponds to the rear flange portion.
[7] The opening is provided in the rear guard frame, and allows a game ball to be launched from the firing rail to the game board through the rear guard frame. Reference numeral 74 in FIG. 2 corresponds to an opening.
[8] The front guard frame is provided on the front frame at the outer peripheral portion of the window, and has a front guard portion and a front flange portion. The front guard portion protrudes rearward from the front frame when the front frame is closed, and surrounds the game board as viewed from the front-rear direction. The front flange portion protrudes outward from the rear end portion of the front guard portion and surrounds the front guard portion. Reference numeral 75 in FIG. 3 corresponds to the front guard frame, reference numeral 76 in FIG. 3 corresponds to the front guard portion, and reference numeral 77 in FIG. 3 corresponds to the front flange portion.
[9] Each of the plurality of guard members is provided on the rear frame. Each of the plurality of guard members is operated to move between a predetermined guard position and a guard release position different from the guard position, and surrounds the game board based on the movement operation to the guard position. . Each of the plurality of guard members has a front plate portion, a rear plate portion, and a connecting plate portion. The front plate portion faces the front flange portion of the front guard frame from the front so as to constrain the front frame to the closed state based on the guard member being moved to the guard position in the closed state of the front frame. Retraction from the front of the front flange portion of the front guard frame to allow the front frame to be operated from the closed state to the open state based on the movement of the guard member to the guard release position in the closed state of the front frame. To do. The rear plate portion is opposed to the rear flange portion of the rear guard frame from the rear based on the guard member being moved to the guard position in the closed state of the front frame, and the guard member is guarded in the closed state of the front frame. Based on the movement operation to the release position, the rear guard frame retracts from the rear of the rear flange portion. The connecting plate portion connects the front plate portion and the rear plate portion to each other, and the front flange portion and the rear guard of the front guard frame are operated based on the guard member being moved to the guard position when the front frame is closed. It faces both the rear flanges of the frame from the outside. Each of the upper left clamp 86, the lower left clamp 87, the upper right clamp 88, and the lower right clamp 89 in FIG. 5 corresponds to a guard member. Reference numeral 91 in FIG. 5 corresponds to a front plate portion, and reference numeral 92 in FIG. This corresponds to the rear plate portion, and reference numeral 93 in FIG. 5 corresponds to the connecting plate portion.
2. Description of the pachinko gaming machine according to claim 2 The pachinko gaming machine according to claim 2 is different from the pachinko gaming machine according to claim 1 in that each of the plurality of guard members is provided on the front frame. Each connecting plate portion of the guard member faces both the front flange portion of the front guard frame and the rear flange portion of the rear guard frame from the outside based on the guard member being moved to the guard position when the front frame is closed. To do. Each of the front plate portions of the plurality of guard members is opposed to the front flange portion of the front guard frame from the front based on the guard member being moved to the guard position in the closed state of the front frame. The guard member is retracted from the front of the front flange portion of the front guard frame based on the guard member being moved to the guard release position in the closed state. Each of the rear plate portions of the plurality of guard members is rearward of the rear flange portion of the rear guard frame so as to constrain the front frame to the closed state based on the guard member being moved to the guard position when the front frame is closed. Of the rear guard frame so as to allow the front frame to be operated from the closed state to the open state based on the guard member being moved to the guard release position in the closed state of the front frame. Retreat from the rear of the rear flange.

  When each of the plurality of guard members is moved from the guard release position to the guard position in the closed state of the front frame, each front plate portion of the plurality of guard members faces the front flange portion of the front guard frame from the front, The rear plate portion of each guard member faces the rear flange portion of the rear guard frame from the rear, and the connecting plate portions of the plurality of guard members are the front flange portion of the front guard frame and the rear flange portion of the rear guard frame. Both are opposed from the outside. When a fraudulent person forcibly operates the front frame in the open state with the front frame closed, the front flange portion of the front guard frame contacts each front plate portion of the plurality of guard members. Since the pachinko gaming machine) or the rear plate portion of each of the plurality of guard members contacts the rear flange portion of the rear guard frame (the pachinko gaming machine according to claim 2), the front frame is restrained in a closed state. Moreover, even if a gap is generated between the front flange portion of the front guard frame and the rear flange portion of the rear guard frame due to excessive operating force applied to the front frame, each front plate portion of the plurality of guard members. The rear plate portion and the connecting plate portion cover the gap between the front flange portion and the rear flange portion so as to surround from the outside. It becomes difficult to insert into the game board from the gap.

  As shown in FIG. 1, the outer frame 1 is constituted by joining a plurality of pieces of wood to each other in the shape of a square tube whose front and rear surfaces are open. As shown in FIG. 2, an inner frame 2 is attached to the outer frame 1. The inner frame 2 is configured to be rotatable around a vertical axis 3 on the left side between a closed state that covers the front surface of the outer frame 1 from the front and an open state that opens the front surface of the outer frame 1 forward. It is locked in the closed state via the inner frame locking mechanism. As shown in FIG. 1, a front frame 4 is attached to the inner frame 2 so as to be positioned in front of the inner frame 2. The front frame 4 has a circular hole-shaped opening 5 and is common to the inner frame 2 between the closed state in which the front surface of the inner frame 2 is covered from the front and the open state in which the front surface of the inner frame 2 is opened forward. Rotation operation is made possible about the shaft 3. An upper plate 6 is fixed to the front frame 4. The upper plate 6 has a container shape with an open upper surface, and an upper discharge outlet 7 is fixed to the inner frame 2 at the rear of the upper plate 6 as shown in FIG. The upper payout outlet 7 has a rectangular tube shape with each of the front face and the rear face opened, and the front face of the upper payout outlet 7 is connected to the inside of the upper plate 6 with the front frame 4 closed. The upper payout port 7 pays out game balls into the upper plate 6, and the game balls discharged from the upper payout port 7 into the upper plate 6 are stored in the upper plate 6.

  As shown in FIG. 1, a horizontally long rectangular bottom plate 8 is fixed to the inner frame 2 below the front frame 4, and the lower plate 8 has a container-like shape whose upper surface is open. A lower plate 9 is fixed. As shown in FIG. 2, a lower payout outlet 10 is fixed to the inner frame 2 at the rear of the lower plate 9. The lower payout outlet 10 has a rectangular tube shape with the front and rear surfaces opened, and the front face of the lower payout outlet 10 is connected to the lower plate 9. The lower payout outlet 10 discharges game balls overflowing from the upper plate 6 into the lower plate 9, and the game balls discharged from the lower payout port 10 into the lower plate 9 are stored in the lower plate 9. The A handle base 11 is fixed to the lower plate 8 on the right side of the lower plate 9, and a firing handle 12 is mounted on the handle base 11 so as to be rotatable about an axis directed in the front-rear direction. ing.

  As shown in FIG. 2, a firing solenoid 13 is attached to the inner frame 2. The firing solenoid 13 has a rotating shaft 14 oriented in the front-rear direction. The firing solenoid 13 is driven by a firing power source 12 based on a clockwise operation from a predetermined initial position. Is given. A ball striking rod 15 is connected to the rotating shaft 14 of the firing solenoid 13, and the firing solenoid 13 strikes the striking ball 15 in the counterclockwise direction compared to the standby position and the standby position based on the supply of drive power. A rotational operation is performed about the rotary shaft 14 reciprocally between the positions. FIG. 2 shows the state where the hitting ball 15 is operated to the standby position.

  As shown in FIG. 2, the firing rail 16 is fixed to the inner frame 2. This firing rail 16 is a ball in which a game ball is transferred from the upper plate 6 by one unit during the movement of the striking ball 15 from the striking position to the standby position, and has an inclined shape that rises from right to left. There is no. A stopper 17 is fixed to the right end portion of the firing rail 16. The stopper 17 supports the game ball transferred from the upper plate 6 to the firing rail 16 so as not to fall from the right end of the firing rail 16, and the game ball supported by the stopper 17 is hit by the hitting ball 15 from the standby position. The game ball hit by the hitting ball 15 based on the movement to the position and hit by the hitting ball 15 rolls from right to left along the firing rail 16.

  As shown in FIG. 2, the inner frame 2 is provided with a vertical plate-like game board 18 positioned above the firing rail 16, and the game board 18 has an inner rail 19, an outer rail 20, and a ball. Each of the stop members 21 is fixed. The inner rail 19 has an arc shape whose upper surface is open, the outer rail 20 has an arc shape arranged on the outer peripheral portion of the inner rail 19, and the ball stopper member 21 has a right end portion of the inner rail 19 and A gap between the right end portions of the outer rail 20 is closed. A firing passage 22 is formed between the inner rail 19 and the outer rail 20 on the left side. The launch passage 22 has an arc shape in which each of a lower end portion and an upper end portion is opened, and a game ball rolling from right to left along the launch rail 16 enters the launch passage 22 from the lower end portion, After rising while drawing an arcuate trajectory along the launch path 22, the gas is discharged from the upper end of the launch path 22.

  A transparent window 23 is fixed to the rear surface of the front frame 4 as shown in FIG. The window 23 closes the opening 5 of the front frame 4, and covers the game area 24 of the game board 18 from the front so that the front frame 4 is closed. As shown in FIG. 2, the game area 24 refers to a circular area excluding the firing path 22 in the area surrounded by the inner rail 19, the outer rail 20, and the ball stopper member 21. This corresponds to the maximum range in which the game balls released from the upper end of the can roll. A plurality of obstacle nails are fixed in the game area 24, and the game balls released into the game area 24 from the upper end portion of the launch passage 22 roll in the game area 24 while hitting the obstacle nails.

  In the game area 24 of the game board 18, a starting port 25 is fixed as shown in FIG. The start opening 25 has a pocket shape whose upper surface is open, and a game ball rolling in the game area 24 can be won in the start opening 25 from the upper surface. A start port sensor is mounted in the start port 25. The start port sensor is composed of a proximity switch that detects that a game ball has won in the start port 25 and outputs a start signal, and is connected to a main control circuit. This main control circuit is mainly composed of a microcomputer, and it is determined that the game ball has won a prize in the start opening 25 based on detecting the start signal.

  The main control circuit determines whether or not it is a big hit based on determining that the game ball has won in the start opening 25. This jackpot determination process is performed by detecting the update result of the jackpot counter based on determining that the game ball has won the start opening 25 and comparing the detection result of the jackpot counter with a predetermined jackpot value. The main control circuit determines that the jackpot counter is a big hit when the detection result of the jackpot counter matches the jackpot value, and determines that the jackpot counter is not a big hit when the detection result of the jackpot counter is different from the jackpot value. . This big hit counter update process is performed by adding a unit value (eg, 1) to the big hit counter every time a certain time (eg, 4 msec) elapses. It is performed cyclically within a range of a predetermined upper limit value (for example, 100).

  In the game area 24 of the game board 18, as shown in FIG. 2, a display frame 26 is fixed above the start opening 25. A decorative symbol display 27 is fixed to the display frame 26, and the display content of the decorative symbol display 27 can be visually recognized through the window 23 from the front. The decorative symbol display 27 is composed of a liquid crystal display. The decorative symbol display 27 displays symbol elements in three horizontal rows of a left column, a middle column, and a right column. The decorative symbol display 27 displays an image of the decorative symbol game based on the winning of the game ball in the start opening 25. The video of this decorative symbol game displays the symbol element in the left column, the symbol element in the middle column, and the symbol element in the right column in the variation state and the variation stop state in order, and the variation display of the symbol element in each column is The symbol elements are cyclically arranged in a predetermined order “1” → “2” → “3” → “4” → “5” → “6” → “7” → “8” → “1”. It is done by changing.

  The left row of design elements, the middle row of design elements, and the right row of design elements constitute a decorative design, and a combination of jackpot and miss is set for the combination of decorative designs. The jackpot combination is a combination in which the symbol element in the left column, the symbol element in the middle column, and the symbol element in the right column are mutually identical, and when the main control circuit determines that it is a jackpot, it is a decorative symbol game. Fluctuate and stop when the symbol elements in each column are “1” to “8” so that the combination of jackpots is a big hit. Outlier combinations refer to combinations in which the left row of design elements, the middle row of design elements, and the right row of design elements are not identical to each other. When the main control circuit determines that it is not a big hit, it is a decorative design game. The symbol elements in each column are fluctuated and stopped at any one of “1” to “8” so that the combinations become out of sync.

  In the game area 24 of the game board 18, as shown in FIG. 2, a special winning opening 28 is fixed below the start opening 25. The special prize opening 28 has a horizontally long box shape with an open front, and a door 29 is mounted on the special prize opening 28 so as to be rotatable about a horizontal shaft 30. The door 29 is connected to the output shaft of the special prize opening solenoid, and the front of the special prize opening 28 is closed so that the game ball cannot be awarded based on the fact that the special prize opening solenoid is in a vertically closed state when the power is cut off. To do. The door 29 is rotated in an open state in which the special prize opening solenoid is energized in a state where the door 29 is tilted forward. In the open state of the door 29, a game ball rolling in the game area 24 rides on the door 29. Rolling into the special prize opening 28 is allowed.

  The special prize opening solenoid is connected to the main control circuit. When it is determined that the main control circuit is a big hit, the special prize opening solenoid is turned off immediately after the decoration symbol is stopped and displayed in the combination of the big win in the decorative symbol game. The special winning opening 28 is switched from the closed state to the open state. A count sensor is mounted in the special winning opening 28. The count sensor is composed of a proximity switch, and outputs a count signal based on the game ball winning in the special winning opening 28. The count sensor is connected to the main control circuit, and the main control circuit determines that the game ball has won the special winning opening 28 based on detecting the count signal. A prize ball control circuit is connected to the main control circuit. This award ball control circuit is configured mainly with a microcomputer, and the main control circuit determines when the game ball has been won at the start opening 25 and when it has been determined that the special prize opening 28 has been won. A prize ball command is transmitted to the prize ball control circuit.

  As shown in FIG. 2, a main set 31 is mounted on the inner frame 2 so as to be located behind the inner frame 2. The main set 31 covers the inner frame 2 from the rear, and a container-like sphere tank 32 is fixed to the main set 31 and is located at the upper end and has an upper surface opened. The ball tank 32 is supplied with game balls from the ball supply device of Taishima, and the game balls supplied from the ball supply device of Taishima into the ball tank 32 are stored in the ball tank 32. The main set 31 is equipped with a prize ball payout device. This prize ball payout device pays out the game balls in the ball tank 32 as prizes from the upper payout outlet 7 into the upper plate 6, and a payout motor of the prize ball payout device is connected to the prize ball control circuit. . The payout motor corresponds to a drive source of the prize ball payout device, and the prize ball control circuit drives the payout motor based on receiving the prize ball command from the main control circuit, and the game in the ball tank 32 is performed. The ball is paid out into the upper plate 6 from the upper discharge outlet 7.

  As shown in FIG. 2, a base plate 41 is fixed to the right side of the inner frame 2 so as to be located behind the inner frame 2. The base plate 41 has a vertical plate shape that is directed in the vertical direction, and two pins 42 are fixed to the base plate 41. Each of these pins 42 has a cylindrical shape protruding rightward from the base plate 41, and a guide groove 43 is formed in the base plate 41 so as to be positioned below each of the two pins 42. Each of these two guide grooves 43 is linearly directed in the vertical direction, and cylindrical guide pins 44 directed in the horizontal direction are inserted into the inner surfaces of the two guide grooves 43. . Each of these two guide pins 44 is fixed to a lock plate 45, and the lock plate 45 is vertically moved based on the fact that each of the two guide pins 44 slides along the inner surface of the guide groove 43. It can be moved linearly. The lock plate 45 has a vertical plate shape directed in the vertical direction, and is disposed on the left side of the base plate 41 so as to overlap the base plate 41.

  As shown in FIG. 2, two lock arms 46 are formed on the lock plate 45. Each of the two lock arms 46 protrudes forward from the lock plate 45, and a claw portion 47 protruding upward is formed at the front end of each of the two lock arms 46. Two openings 48 are formed in the inner frame 2, and each of the two claw portions 47 protrudes forward of the inner frame 2 through the opening 48. Each of these two openings 48 is linearly directed in the vertical direction, and the movement of the lock plate 45 is based on the fact that each of the two lock arms 46 contacts the inner surface of the opening 48 from below. The front frame lock position is stopped, and the two lock arms 46 come into contact with the inner surface of the opening 48 from above, and stop at the front frame lock release position below the front frame lock position.

  As shown in FIG. 3, two plates 49 are fixed to the right side of the front frame 4, and each of the two plates 49 is formed with an opening 50 that is linearly directed in the vertical direction. ing. Each of these two openings 50 is one in which the claw portion 47 of the lock arm 46 is inserted from the rear with the front frame 4 closed, and each of the two claw portions 47 is a front frame lock of the lock plate 45. The front frame 4 is prohibited from being rotated from the closed state to the open state based on the engagement with the plate 49 at the position, and is disengaged from the plate 49 at the front frame unlocking position of the lock plate 45. Based on this, the front frame 4 is allowed to be turned from the closed state to the open state. As shown in FIG. 2, the lower end portions of the lock springs 51 are attached to the two guide pins 44 of the lock plate 45, and the upper end portions of the two lock springs 51 are attached to the base plate 41. The pin 42 is attached. Each of these two lock springs 51 is a tension coil spring, and the lock plate 45 is held at the front frame lock position by the spring force of the two lock springs 51.

  As shown in FIG. 2, the inner frame 2 is formed with a key base 52 located in front of the inner frame 2, and a cylinder lock 53 is attached to the key base 52. The key base 52 is disposed below both the base plate 41 and the lock plate 45, and is inserted into the opening 54 with the front frame 4 closed as shown in FIG. The opening 54 forms a notch formed in the front frame 4, and the cylinder lock 53 of the key base 52 is exposed to be operable forward through the opening 54 when the front frame 4 is closed.

  As shown in FIG. 4, the cylinder lock 53 has an outer cylinder 55 and an inner cylinder 56. The outer cylinder 55 is open at the front and rear surfaces, is fixed to the key base 52 so as not to rotate, and the inner cylinder 56 is inserted into the inner peripheral surface of the outer cylinder 55. A key hole 57 is formed in the inner cylinder 56. The key hole 57 penetrates the inner cylinder 56 in the axial direction, and a dedicated key 58 can be inserted into the key hole 57 from the front through the front surface of the outer cylinder 55 with the front frame 4 closed. . The inner cylinder 56 is rotatable about a shaft 59 extending in the front-rear direction between the lock position and the unlock position. As shown in FIG. 1, the lock position refers to a position where the key hole 57 is directed in the vertical direction, and the lock release position refers to a position where the key hole 57 is directed in the left-right direction. Reaches the unlocked position based on a 90 ° counterclockwise rotation from the locked position.

  As shown in FIG. 4, two grooves 60 are formed in the outer cylinder 55 of the cylinder lock 53. Each of the two groove portions 60 has a linear shape directed in the front-rear direction, and is disposed so as to face each other across the shaft 59 of the inner cylinder 56. A plurality of disks 61 are mounted in the inner cylinder 56 side by side in the axial direction, and each of the plurality of disks 61 is held in the engagement position by the spring force of the spring when the inner cylinder 56 is locked. This engagement position refers to a position where the disk 61 protrudes into one of the two groove portions 60, and each of the plurality of disks 61 is engaged with the inner surface of the groove portion 60 at the engagement position. Thus, the inner cylinder 56 is restrained to the lock position so as not to rotate.

  As shown in FIG. 4, an opening 62 is formed in each of the plurality of disks 61, and the key 58 passes through the key hole 57 at the locking position of the inner cylinder 56 and is in each opening 62 of the plurality of disks 61. Each of the plurality of discs 61 is moved from the engagement position to the disengagement position against the spring force of the spring based on being inserted into the disc. The disengagement position refers to a position where the disk 61 is retracted from each of the two groove portions 60. Each of the plurality of disks 61 is disengaged from the inner surface of the groove portion 60 at the disengagement position. The inner cylinder 56 is allowed to rotate. That is, the cylinder lock 53 is in a locked state in which it is impossible to rotate the inner cylinder 56 from the locked position to the unlocked position when the key 58 is not inserted from the front, and the key 58 is inserted from the front. In this state, the inner cylinder 56 can be unlocked from the locked position to the unlocked position.

  The inner cylinder 56 of the cylinder lock 53 is connected to the lock plate 45 via a connecting rod. The connecting rod operates the lock plate 45 to the front frame lock position at the lock position of the inner cylinder 56, and locks based on the operation of the lock plate 45 to the front frame lock position at the lock position of the inner cylinder 56. Each of the two claw portions 47 of the plate 45 engages with the plate 49 of the front frame 4 to lock the front frame 4 in the closed state. This connecting rod operates the lock plate 45 to the front frame unlock position at the lock release position of the inner cylinder 56, and inserts the key 58 into the key hole 57 with the front frame 4 locked in the closed state. When the lock plate 45 is operated from the lock position to the counterclockwise lock release position, each of the two claw portions 47 of the lock plate 45 moves based on the movement of the lock plate 45 from the front frame lock position to the front frame lock release position. The front frame 4 is detached from the plate 49, and the front frame 4 can be operated between the closed state and the open state.

  As shown in FIG. 2, a rear guard frame 71 is fixed to the inner frame 2. The rear guard frame 71 has a rear guard portion 72 and a rear flange portion 73, and the rear guard portion 72 refers to a portion protruding forward from the inner frame 2. Thereafter, the guard portion 72 has a rectangular tube shape surrounding the game board 18 and includes a left side plate, a right side plate, an upper plate, and a lower plate. The rear flange portion 73 refers to a portion protruding outward from the front end portion of the rear guard portion 72. The rear flange portion 73 has a vertical square frame shape surrounding the rear guard portion 72, and has a left side plate, a right side plate, an upper plate, and a lower plate. The rear guard portion 72 of the rear guard frame 71 is fixed to the outer peripheral portion of the game board 18 so as to surround the game board 18, and the rear guard frame 71 includes a rear guard portion 72 and a rear flange portion 73, respectively. An opening 74 is formed in the lower plate. The left end portion of the firing rail 16 is inserted into the opening 74, and the rear guard portion 72 and the rear flange portion 73 of the rear guard frame 71 are fired from the firing rail 16 through the rear guard frame 71. The game board 18 is surrounded so as to allow a game ball to be launched into the passage 22.

  As shown in FIG. 3, a front guard frame 75 is fixed to the front frame 4. The front guard frame 75 has a front guard portion 76 and a front flange portion 77, and the front guard portion 76 refers to a portion that protrudes rearward from the front frame 4 when the front frame 4 is closed. The front guard portion 76 is fixed to the outer peripheral portion of the window 23 so as to surround the window 23. As shown in FIG. 2, the front guard portion 76 has a rectangular tube shape surrounding the game board 18 with the front frame 4 closed, and has a left side plate, a right side plate, an upper plate and a lower plate. ing. The front flange portion 77 refers to a portion protruding outward from the rear end portion of the front guard portion 76, and has a vertical square frame shape surrounding the front guard portion 76. The front guard portion 76 is in surface contact with the rear flange portion 73 of the rear guard frame 71 when the front frame 4 is closed, and has a left side plate, a right side plate, an upper plate, and a lower plate.

  As shown in FIG. 5, a clamp mechanism 80 is attached to the inner frame 2. The clamp mechanism 80 is operated by the rear flange portion 73 of the rear guard frame 71 and the front guard frame 75 in conjunction with the inner cylinder 56 of the cylinder lock 53 being operated from the unlocked position to the locked position when the front frame 4 is closed. The front flange portions 77 are clamped, and the rear flange portion 73 of the rear guard frame 71 and the front flange of the front guard frame 75 are interlocked with the inner cylinder 56 of the cylinder lock 53 being operated from the locked position to the unlocked position. The parts 77 are released from each other and are configured as follows.

  As shown in FIG. 5, the upper left rail 81, the lower left rail 82, the upper right rail 83, and the lower right rail 84 are fixed to the inner frame 2 in front of the inner frame 2. Each of the upper left rail 81, the lower left rail 82, the upper right rail 83, and the lower right rail 84 has a linear guide groove 85, and the guide pin 90 of the upper left clamp 86 is provided in the guide groove 85 of the upper left rail 81. The guide pin 90 of the lower left clamp 87 is inserted into the guide groove 85 of the lower left rail 82, and the guide pin 90 of the upper right clamp 88 is inserted into the guide groove 85 of the upper right rail 83. A guide pin 90 of a lower right clamp 89 is inserted into the guide groove 85. Each of these guide pins 90 has a cylindrical shape directed in the front-rear direction, and each of the upper left clamp 86, the lower left clamp 87, the upper right clamp 88, and the lower right clamp 89 has the guide pin 90 along the inner surface of the guide groove 85. It is possible to move linearly based on sliding.

  Each of the upper left clamp 86, the lower left clamp 87, the upper right clamp 88, and the lower right clamp 89 has an L shape having a vertical plate and a horizontal plate when viewed from the front-rear direction, as shown in FIG. Each of the upper left clamp 86 to the lower right clamp 89 is disposed in front of the inner frame 2, and is formed by connecting the front plate portion 91 and the rear plate portion 92 to each other via the connecting plate portion 93. is there. Each of the upper left clamp 86 to the lower right clamp 89 has a U-shaped cross section, and each of the upper left clamp 86 to the lower right clamp 89 has a front plate portion 91, a rear plate portion 92, and a connecting plate portion 93. A space-like guard accommodating portion 94 is formed at the position.

  As shown in FIG. 5, an upper left arm 95 is connected to the upper left clamp 86. The upper left arm 95 is configured to be rotatable with respect to the upper left clamp 86 about a common axis with the guide pin 90 of the upper left clamp 86. The upper left arm 95 has an axis on which the left arm 96 is directed in the front-rear direction. It is connected so as to be rotatable around 97. The left arm 96 is supported by the inner frame 2 so as to be rotatable about a shaft 98 oriented in the front-rear direction. A left lower arm 99 is connected to the left arm 96 so as to be rotatable about a shaft 100 oriented in the front-rear direction. The lower left arm 99 is centered on a shaft common to the lower left clamp 87 and the guide pin 90 of the lower left clamp 87. It is connected to the pivotable.

  As shown in FIG. 5, the shaft 100 of the left arm 96 is movably inserted into a horizontally long upper slit 102 of the upper arm 101. The upper arm 101 is horizontally long and oriented in the left-right direction, and the right end of the upper arm 101 is connected to the inner frame 2 via an upper return spring 103. The upper return spring 103 is a tension coil spring, and the upper arm 101 is urged rightward by the spring force of the upper return spring 103. Each of the upper return spring 103, the upper arm 101, the lower left arm 99, the left arm 96, and the upper left arm 95 is arranged behind the game board 18, and is covered by the game board 18 from the front so that it cannot be visually recognized. It has been broken.

  As shown in FIG. 5, the upper cam groove 104 is formed in the upper arm 101, and the upper cam protrusion 106 of the cam 105 is inserted into the upper cam groove 104. The cam 105 is concentrically connected to the inner cylinder 56 of the cylinder lock 53. When the inner cylinder 56 is locked, the inner surface of the upper cam groove 104 is pushed by the spring force of the upper return spring 103 so that the upper cam protrudes from the cam 105. The upper arm 101 is stopped at the guard position based on engaging the portion 106 from the left side. FIG. 5 shows a state where the upper arm 101 is stopped at the guard position. At the guard position of the upper arm 101, each of the upper left clamp 86 and the lower left clamp 87 stops at the guard position (see the solid line).

  The guard position of the upper left clamp 86 is in the closed state of the front frame 4 and the upper plate of the rear flange portion 73, the left side plate of the rear flange portion 73, the upper plate of the front flange portion 77, and the front flange in the guard storage portion 94 of the upper left clamp 86. Each of the left side plates of the portion 77 is a position where each of the left side plates is inserted, and in the state where each of the upper plate of the rear flange portion 73 and the left side plate of the front flange portion 77 is inserted into the guard accommodating portion 94 of the upper left clamp 86, 86, the front plate portion 91 of the front flange portion 77 faces the upper plate of the front flange portion 77 and the left side plate of the front flange portion 77 from the front, and the rear plate portion 92 of the upper left clamp 86 is the upper plate and the rear flange portion of the rear flange portion 73. The left and right plates 73 of the upper left clamp 86 are opposed to each other from the rear, and the upper plate of the front flange portion 77, the left plate of the front flange portion 77, the upper plate of the rear flange portion 73, and the rear frame. Opposed from the outside to each of the left side plate of the di-section 73, between the upper left cross in the upper left portion and the front flange portion 77 of the rear flange portion 73 is clamped from the front and rear direction.

  The guard position of the lower left clamp 87 is in the closed state of the front frame 4, the lower plate of the rear flange portion 73, the left side plate of the rear flange portion 73, the lower plate of the front flange portion 77, and the front flange in the guard storage portion 94 of the lower left clamp 87. Each of the left side plates of the portion 77 is a position where each of the left side plates is inserted. In the state where each of the lower plate of the rear flange portion 73 and the left side plate of the front flange portion 77 is inserted into the guard housing portion 94 of the lower left clamp 87, The front plate portion 91 of the 87 faces the lower plate of the front flange portion 77 and the left side plate of the front flange portion 77 from the front, and the rear plate portion 92 of the lower left clamp 87 is the lower plate and the rear flange portion of the rear flange portion 73. The left side plate 73 faces the rear plate from the rear, and the connecting plate portion 93 of the lower left clamp 87 includes the lower plate of the front flange portion 77, the left side plate of the front flange portion 77, the lower plate of the rear flange portion 73, and the rear frame. Opposed from the outside to each of the left side plate of the di-section 73, between the lower left cross in the lower left portion and the front flange portion 77 of the rear flange portion 73 is clamped from the front and rear direction.

  As shown in FIG. 5, the upper cam protrusion 106 of the cam 105 is formed on the inner surface of the upper cam groove 104 of the upper arm 101 based on the operation of the inner cylinder 56 from the locked position to the unlocked position in the counterclockwise direction. Is moved to the left guard release position against the guard position against the spring force of the upper return spring 103, and the upper arm 101 releases the guard from the guard position. When moved to the position, the guide pin 90 of the upper left clamp 86 moves outward along the guide groove 85 of the upper left rail 81, and the guide pin 90 of the lower left clamp 87 moves outward along the guide groove 85 of the lower left rail 82. The upper left clamp 86 and the lower left clamp 87 are stopped at the guard release position (see the two-dot chain line).

  The guard release position of the upper left clamp 86 is in the closed state of the front frame 4, and the upper plate of the rear flange portion 73, the left plate of the rear flange portion 73, the upper plate of the front flange portion 77, and the front Each of the left side plates of the flange portion 77 is disengaged. When the upper plate of the rear flange portion 73 and the left side plate of the front flange portion 77 are disengaged from within the guard housing portion 94 of the upper left clamp 86, The front plate portion 91 retreats from the front to the outside of the upper plate of the front flange portion 77 and the left plate of the front flange portion 77, and the rear plate portion 92 of the upper left clamp 86 is the upper plate and rear flange portion of the rear flange portion 73. The left side plate 73 is retracted from the rear side to the outside, and the connecting plate portion 93 of the upper left clamp 86 is connected to the upper plate of the front flange portion 77, the left side plate of the front flange portion 77, and the rear flange portion 73. Retracted from the respective left side plate of the plate and the rear flange portion 73 to the outside, between the upper left cross in the upper left portion and the front flange portion 77 of the rear flange portion 73 is unclamped.

  The guard release position of the lower left clamp 87 is in the closed state of the front frame 4, and the lower plate of the rear flange portion 73, the left side plate of the rear flange portion 73, the lower plate of the front flange portion 77, and the front Each of the left side plates of the flange portion 77 is disengaged. When the lower plate of the rear flange portion 73 and the left side plate of the front flange portion 77 are disengaged from within the guard housing portion 94 of the lower left clamp 87, the lower left clamp 87 The front plate portion 91 retracts from the front of the lower plate of the front flange portion 77 and the left side plate of the front flange portion 77 to the outside, and the rear plate portion 92 of the left lower clamp 87 is the lower plate and the rear flange portion of the rear flange portion 73. The left side plate 73 is retracted from the rear to the outside, and the connecting plate portion 93 of the lower left clamp 87 is connected to the lower plate of the front flange portion 77, the left side plate of the front flange portion 77, and the rear flange portion 73. Retracted from the respective left side plate of the plate and the rear flange portion 73 to the outside, between the lower left cross in the lower left portion and the front flange portion 77 of the rear flange portion 73 is unclamped.

  As shown in FIG. 5, an upper right arm 107 is connected to the upper right clamp 88. The upper right arm 107 is pivotable with respect to the upper right clamp 88 about a common axis with the guide pin 90 of the upper right clamp 88. The upper arm 107 has an axis on which the right arm 108 is directed in the front-rear direction. It is connected so that it can rotate around 109. The right arm 108 is supported by the inner frame 2 so as to be rotatable about a shaft 110 oriented in the front-rear direction. A lower right arm 111 is connected to the right arm 108 so as to be rotatable about a shaft 112 oriented in the front-rear direction. The lower right arm 111 is common to the lower right clamp 89 and the guide pin 90 of the lower right clamp 89. It is connected so that it can be rotated around the axis of.

  As shown in FIG. 5, the right arm 108 is fixed with a shaft 113 oriented in the front-rear direction. The shaft 113 of the right arm 108 is movable in a horizontally long linear lower slit 115 of the lower arm 114. Has been inserted. The lower arm 114 is horizontally long and oriented in the left-right direction, and the right end of the lower arm 114 is connected to the inner frame 2 via a lower return spring 116. The lower return spring 116 is a compression coil spring, and the lower arm 114 is urged to the left by the spring force of the lower return spring 116. Each of the lower return spring 116, the lower arm 114, the lower right arm 111, the right arm 108, and the upper right arm 107 is disposed behind the game board 18, and cannot be visually recognized by the game board 18 from the front. Covered.

  As shown in FIG. 5, a lower cam groove 117 is formed in the lower arm 114. A lower cam projection 118 of the cam 105 is inserted into the lower cam groove 117. When the inner cylinder 56 of the cylinder lock 53 is locked, the inner surface of the lower cam groove 117 is driven by the spring force of the lower return spring 116. The lower arm 114 stops at the guard position based on engaging the lower cam protrusion 117 from the right side. FIG. 5 shows a state where the lower arm 114 is stopped at the guard position. At the guard position of the lower arm 114, each of the upper right clamp 88 and the lower right clamp 89 stops at the guard position (see the solid line). At the guard positions of the lower right clamp 89, the upper right clamp 88, the lower left clamp 87, and the upper left clamp 86, the lower right clamp 89 to the upper left clamp 86 are in contact with each other, and the game board 18 is moved by the lower right clamp 89 to the upper left clamp 86. Surrounded.

  The guard position of the upper right clamp 88 is in the closed state of the front frame 4 and the upper plate of the rear flange portion 73, the right side plate of the rear flange portion 73, the upper plate of the front flange portion 77, and the front flange in the guard housing portion 94 of the upper right clamp 88. Each of the right side plates of the portion 77 is a position where the right side plate is inserted. In the state where each of the upper plate of the rear flange portion 73 and the right side plate of the front flange portion 77 is inserted into the guard housing portion 94 of the right upper clamp 88, The front plate portion 91 of the 88 faces the upper plate of the front flange portion 77 and the right side plate of the front flange portion 77 from the front, and the rear plate portion 92 of the upper right clamp 88 is the upper plate and rear flange portion of the rear flange portion 73. 73, the right side plate of the upper right clamp 88 is connected to the upper plate of the front flange portion 77, the right side plate of the front flange portion 77, the upper plate of the rear flange portion 73, and the rear frame. Opposed from the outside to each of the right side plate of the di-section 73, between the upper right mutual right top and the front flange portion 77 of the rear flange portion 73 is clamped from the front and rear direction.

  The guard position of the lower right clamp 89 is in the closed state of the front frame 4, the lower plate of the rear flange portion 73, the right side plate of the rear flange portion 73, and the lower plate of the front flange portion 77 in the guard housing portion 94 of the lower right clamp 89. Each of the right side plates of the front flange portion 77 is a position where each of the right side plates of the front flange portion 77 is inserted, and each of the lower plate of the rear flange portion 73 and the right side plate of the front flange portion 77 is inserted into the guard housing portion 94 of the lower right clamp 89. Then, the front plate portion 91 of the lower right clamp 89 faces the lower plate of the front flange portion 77 and the right plate of the front flange portion 77 from the front, and the rear plate portion 92 of the lower right clamp 89 is below the rear flange portion 73. The connection plate portion 93 of the lower right clamp 89 is opposed to the rear plate and the right side plate of the rear flange portion 73 from the rear, and the lower plate of the front flange portion 77, the right side plate of the front flange portion 77, and the lower plate of the rear flange portion 73. And hula Opposed from the outside to each of the right side plate of the di-section 73, between the right lower mutual right lower and front flange 77 of the rear flange portion 73 is clamped from the front and rear direction.

  As shown in FIG. 5, the lower cam projection 118 of the cam 105 is formed on the inner surface of the lower cam groove 117 of the lower arm 114 based on the operation of the inner cylinder 56 from the locked position to the unlocked position in the counterclockwise direction. Is moved to the guard release position to the right of the lower arm 114 against the spring force of the lower return spring 116, and the lower arm 114 releases the guard from the guard position. When moved to the position, the guide pin 90 of the upper right clamp 88 moves outward along the guide groove 85 of the upper right rail 83, and the guide pin 90 of the lower right clamp 89 moves along the guide groove 85 of the lower right rail 84. It moves outside and each of the upper right clamp 88 and the lower right clamp 89 stops at the guard release position (see the two-dot chain line).

  The guard release position of the upper right clamp 88 is in the closed state of the front frame 4, and the upper plate of the rear flange portion 73, the right side plate of the rear flange portion 73, the upper plate of the front flange portion 77 and the front from the inside of the guard storage portion 94 of the upper right clamp 88. Each of the right side plates of the flange portion 77 is disengaged. When the upper plate of the rear flange portion 73 and the right side plate of the front flange portion 77 are disengaged from within the guard housing portion 94 of the upper right clamp 88, The front plate portion 91 retracts from the front of the upper plate of the front flange portion 77 and the right side plate of the front flange portion 77 to the outside, and the rear plate portion 92 of the upper right clamp 88 is the upper plate and rear flange portion of the rear flange portion 73. Each of the right side plates of 73 is retracted from the rear to the outside, and the connecting plate portion 93 of the upper right clamp 88 is connected to the upper plate of the front flange portion 77, the right side plate of the front flange portion 77, and the rear flange portion 73. Retracted from respective right side plate of the plate and the rear flange portion 73 to the outside, between the right upper mutual right top and the front flange portion 77 of the rear flange portion 73 is unclamped.

  The guard release position of the lower right clamp 89 is in the closed state of the front frame 4, the lower plate of the rear flange portion 73, the right side plate of the rear flange portion 73, and the lower plate of the front flange portion 77 from within the guard storage portion 94 of the lower right clamp 89. And the right side plate of the front flange portion 77 are disengaged, and the right plate in the state where the lower plate of the rear flange portion 73 to the right side plate of the front flange portion 77 are disengaged from the inside of the guard housing portion 94 of the lower right clamp 89. The front plate portion 91 of the lower clamp 89 retreats from the front to the outside of the lower plate of the front flange portion 77 and the right side plate of the front flange portion 77, and the rear plate portion 92 of the lower right clamp 89 is below the rear flange portion 73. The plate and the right side plate of the rear flange portion 73 are retracted from the rear to the outside, and the connecting plate portion 93 of the lower right clamp 89 is connected to the lower plate of the front flange portion 77, the right side plate of the front flange portion 77, and the rear flange portion 73. Retracted from each of the right side plate of the plate and the rear flange portion 73 to the outside, between the right lower mutual right lower and front flange 77 of the rear flange portion 73 is unclamped.

  When the inner cylinder 56 of the cylinder lock 53 is operated to the lock position with the front frame 4 closed, the lock plate 45 moves to the front frame lock position, and as shown in FIG. Each of the claw portions 47 is engaged with the plate 49 of the front frame 4 from the front. At the same time, each of the upper left clamp 86, the lower left clamp 87, the upper right clamp 88, and the lower right clamp 89 moves to the guard position, and the front plate portions 91 of the upper left clamp 86 to the lower right clamp 89 are moved as shown in FIG. The rear plate portion 92 of each of the upper left clamp 86 to the lower right clamp 89 faces the rear flange portion 73 of the rear guard frame 71 from the rear to face the front flange portion 77 of the front guard frame 75 from the front, and the upper left clamp 86 to Each connecting plate portion 93 of the lower right clamp 89 faces both the front flange portion 77 of the front guard frame 75 and the rear flange portion 73 of the rear guard frame 71 from the outside. When the fraudster forcibly operates the front frame 4 in the open state with the front frame 4 closed, each of the two plates 49 of the front frame 4 comes into close contact with the claw portion 47 of the lock plate 45, Since the front flange portion 77 of the guard frame 75 is in close contact with the respective front plate portions 91 of the upper left clamp 86 to the lower right clamp 89, the front frame 4 is locked in the closed state.

  When the key 58 is inserted into the key hole 57 of the cylinder lock 53 with the front frame 4 closed, the cylinder lock 53 is switched from the locked state to the unlocked state. When the inner cylinder 56 of the cylinder lock 53 is rotated from the locked position to the unlocked position based on the operation of the key 58 in the inserted state of the key 58, the lock plate 45 is released from the front frame locked position to the unlocked front frame. The two claw portions 47 of the lock plate 45 are disengaged from the plate 49 of the front frame 4. At the same time, the cam 105 rotates from the guard position to the guard releasing position in the counterclockwise direction, and the upper cam projection 106 of the cam 105 presses the inner surface of the cam groove 104 of the upper arm 101 to the left, The protrusion 118 presses the inner surface of the cam groove 117 of the lower arm 114 to the right. Then, the upper arm 101 moves from the guard position to the left guard release position against the spring force of the return spring 103, and the lower arm 114 resists the spring force of the return spring 116 from the guard position to the right guard. Since it moves to the release position, each of the upper left clamp 86, the lower left clamp 87, the upper right clamp 88, and the lower right clamp 89 moves from the guard position to the guard release position. At the guard release positions of the upper left clamp 86 to the lower right clamp 89, the front plate portions 91 of the upper left clamp 86 to the lower right clamp 89 are retracted from the front of the front flange portion 77 of the front guard frame 75 to the outside, and the upper left The rear plate portions 92 of the clamps 86 to the lower right clamp 89 retreat outward from the rear of the rear flange portion 73 of the rear guard frame 71, and the connecting plate portions 93 of the upper left clamp 86 to the lower right clamp 89 are front guards. It moves away from both the front flange portion 77 of the frame 75 and the rear flange portion 73 of the rear guard frame 71. For this reason, since the front frame 4 is unlocked, the front frame 4 can be operated from the closed state to the open state.

  When the inner cylinder 56 of the cylinder lock 53 is rotated from the unlocked position to the locked position based on the key 58 being operated in the closed state of the front frame 4, the lock plate 45 is locked from the front frame unlocked position to the front frame. The two claw portions 47 of the lock plate 45 engage with the plate 49 of the front frame 4. At the same time, the cam 105 rotates from the guard release position to the guard position in the clockwise direction, the upper cam projection 106 of the cam 105 is separated from the inner surface of the cam groove 104 of the upper arm 101, and the lower cam projection 118 of the cam 105 is moved. The lower arm 114 is separated from the inner surface of the cam groove 117. Then, the upper arm 101 is moved from the guard release position to the right guard position by the spring force of the return spring 103, and the lower arm 114 is moved from the guard release position to the left guard position by the spring force of the return spring 116. The upper left clamp 86, the lower left clamp 87, the upper right clamp 88, and the lower right clamp 89 each move from the guard release position to the guard position, and the front frame 4 is locked in the closed state.

According to the said Example 1, there exists the following effect.
When the inner cylinder 56 of the cylinder lock 53 is operated to the locked position in the closed state of the front frame 4, the front frame 4 is locked in the closed state. When the fraudster forcibly operates the front frame 4 in the open state in the locked state of the front frame 4, the front flange portion 77 of the front guard frame 75 has the front plate portions of the upper left clamp 86 to the lower right clamp 89. 91, and a gap is generated between the front flange portion 77 of the front guard frame 75 and the rear flange portion 73 of the rear guard frame 71. In this state, the front plate portion 91, the rear plate portion 92, and the connecting plate portion 93 of each of the upper left clamp 86 to the lower right clamp 89 cover the gap between the front flange portion 77 and the rear flange portion 73 from the outside in a U-shape. Therefore, it becomes difficult for an unauthorized person to insert an unauthorized device such as a piano wire into the game board 18 through a gap between the front flange portion 77 and the rear flange portion 73.

  In the first embodiment, the cam 105 may be connected to the rotating shaft of the motor. In this configuration, a first sensor that detects that the inner cylinder 56 of the cylinder lock 53 has been operated to the locked position and a second sensor that detects that the inner cylinder 56 has been operated to the unlocked position are provided, and the motor is connected to the first sensor. Each of the upper left clamp 86 to the lower right clamp 89 may be operated between the guard position and the guard release position based on the control according to the detection results of both the first sensor and the second sensor.

  In the first embodiment, the cam 105 is connected to the rotating shaft of the motor, the cam 105 is rotated based on the transmission of an air propagation signal such as radio waves, infrared rays, or electromagnetic waves from the remote control device to the motor, and the upper left clamp Each of the 86 to lower right clamps 89 may be remotely operated between the guard position and the guard release position. In the case of this configuration, the cylinder lock 53 can be eliminated.

  As shown in FIG. 6, a crank-like upper left arm 121 is connected to the upper left clamp 86. The upper left arm 121 is configured to be rotatable with respect to the upper left clamp 86 about a common axis with the guide pin 90 of the upper left clamp 86, and a cam groove 122 is formed in the upper left arm 121. An upper left cam projection 124 of the driven cam 123 is engaged in the cam groove 122. The driven cam 123 is supported by the inner frame 2 so as to be rotatable about a shaft 128 oriented in the front-rear direction, and includes an upper left cam protrusion 124, a lower left cam protrusion 125, an upper right cam protrusion 126, and a lower right cam. A protrusion 127 is provided. A crank-like lower left arm 129 is connected to the lower left clamp 87, and a cam groove 130 is formed in the lower left arm 129. The lower left arm 129 is rotatable with respect to the lower left clamp 87 about the same axis as the guide pin 90 of the lower left clamp 87. The lower left arm 129 has a lower left arm of the driven cam 123 in the cam groove 130. The cam protrusion 125 is engaged.

  As shown in FIG. 6, a straight upper right arm 131 is connected to the upper right clamp 88, and a cam groove 132 is formed in the upper right arm 131. The upper right arm 131 is configured to be rotatable with respect to the upper right clamp 88 about a common axis with the guide pin 90 of the upper right clamp 88. In the cam groove 132 of the upper right arm 131, the upper right arm of the driven cam 123 is provided. The cam protrusion 126 is engaged. A crank-like lower right arm 133 is connected to the lower right clamp 89, and a cam groove 134 is formed in the lower right arm 133. The lower right arm 133 is rotatable with respect to the lower right clamp 89 about the same axis as the guide pin 90 of the lower right clamp 89, and is driven in the cam groove 134 of the lower right arm 133. The lower right cam protrusion 127 of the cam 123 is engaged.

  As shown in FIG. 6, a gear 135 is concentrically fixed to the shaft 128 of the driven cam 123. The gear 135 has teeth formed in the entire circumferential direction, and the gear 135 meshes with the linear gear portion 137 of the arm 136. The arm 136 has a linear shape directed in the left-right direction, and the right end of the arm 136 is connected to the inner frame 2 via a return spring 138. The return spring 138 is a compression coil spring, and the arm 136 is urged to the left by the spring force of the return spring 138. A cam groove 139 is formed in the arm 136, and a cam projection 141 of the main driving cam 140 is engaged in the cam groove 139. The main cam 140 is supported by the inner frame 2 so as to be rotatable about a shaft 142 oriented in the front-rear direction. The main driving cam 140, the return spring 138, the arm 136, the gear 135, the lower right arm 133, the upper right arm 131, the lower left arm 129, the driven cam 123, and the upper left arm 121 are respectively arranged behind the game board 18. The game board 18 covers the main cam 140 to the upper left arm 121 from the front so that they cannot be visually recognized.

  The main cam 140 is connected to the inner cylinder 56 of the cylinder lock 53 and stops at the guard position while the inner cylinder 56 of the cylinder lock 53 stops at the lock position. FIG. 6 shows a state in which the main driving cam 140 is stopped at the guard position. At the guard position of the main driving cam 140, the inner surface of the cam groove 139 of the arm 136 engages with the cam protrusion 141 of the main driving cam 140 from the right side. As a result, the arm 136 is stopped at the guard position, and the rotation of the gear 135 and the driven cam 123 is stopped. At the guard position of the main drive cam 140, the upper left clamp 86, the lower left clamp 87, the upper right clamp 88, and the lower right clamp 89 are restrained at the guard position.

  When the inner cylinder 56 of the cylinder lock 53 is rotated from the locked position to the unlocked position, the main driving cam 140 rotates from the guard position to the counterclockwise guard releasing position, and the cam protrusion 141 of the main driving cam 140 becomes the cam groove. Since the inner surface of 139 is pressed to the right against the spring force of the return spring 138, the arm 136 moves from the guard position to the right guard release position. Then, the driven cam 123 is rotated from the guard position to the guard release position in the counterclockwise direction via the gear portion 137 of the arm 136, and each of the upper left clamp 86, the lower left clamp 87, the upper right clamp 88, and the lower right clamp 89 is operated. Move from the guard position to the guard release position.

  When the inner cylinder 56 of the cylinder lock 53 is rotated from the unlocked position to the locked position, the main driving cam 140 rotates from the guard releasing position to the guard position in the clockwise direction, and the cam protrusion 141 of the main driving cam 140 becomes the cam groove 139. Separated from the inner surface of the. Then, the arm 136 is moved from the guard release position to the left guard position by the spring force of the return spring 138, so that the driven cam 123 is moved from the guard release position to the clockwise guard position via the gear portion 137 of the arm 136. The upper left clamp 86, the lower left clamp 87, the upper right clamp 88, and the lower right clamp 89 are moved from the guard release position to the guard position by being rotated.

  In the second embodiment, the main cam 140 may be connected to the rotation shaft of the motor. In this configuration, a first sensor that detects that the inner cylinder 56 of the cylinder lock 53 has been operated to the locked position and a second sensor that detects that the inner cylinder 56 has been operated to the unlocked position are provided, and the motor is connected to the first sensor. Each of the upper left clamp 86 to the lower right clamp 89 may be operated between the guard position and the guard release position based on the control according to the detection results of both the first sensor and the second sensor.

  In each of the first and second embodiments, each of the upper left clamp 86, the lower left clamp 87, the upper right clamp 88, and the lower right clamp 89 is connected to a dedicated electric actuator such as an electromagnetic solenoid, and an actuator for the upper left clamp 86 is obtained. Based on controlling the actuators for the lower right clamp 89 according to the detection results of both the first sensor and the second sensor, the upper left clamp 86 to the lower right clamp 89 are guarded and released. You may operate between positions. Alternatively, each of the upper left clamp 86 to the lower right clamp 89 is set to the guard position and the guard release position based on transmitting an air propagation signal from the remote control device to each of the actuator for the upper left clamp 86 to the actuator for the lower right clamp 89. Remote control may be performed between each other.

  An upper left rail 81, a lower left rail 82, an upper right rail 83, and a lower right rail 84 are fixed to the rear surface of the front frame 4 at the outer periphery of the window 23, respectively. As shown in FIG. 7, the guide pin 90 of the upper left clamp 86 is inserted into the guide groove 85 of the upper left rail 81, and the guide pin 90 of the lower left clamp 87 is inserted into the guide groove 85 of the lower left rail 82, A guide pin 90 of the upper right clamp 88 is inserted into the guide groove 85 of the upper right rail 83, and a guide pin 90 of the lower right clamp 89 is inserted into the guide groove 85 of the lower right rail 84. Each of the lower left clamp 87, the upper right clamp 88, and the lower right clamp 89 is movable between the guard position and the guard release position based on the guide pin 90 sliding along the inner surface of the guide groove 85. Two spring receivers 151 are fixed to each of the upper left clamp 86 to the lower right clamp 89, and a compression coil spring 152 is interposed between two adjacent spring receivers 151.

  A wire guide 153 is fixed to each of the upper left clamp 86, the lower left clamp 87, the upper right clamp 88, and the lower right clamp 89, as shown in FIG. Each of the four wire guides 153 has an L shape having a vertical plate and a horizontal plate when viewed from the front-rear direction, and has a U-shaped cross-sectional shape. A common wire 154 is wound around each of the upper left clamp 86, the lower left clamp 87, the upper right clamp 88, and the lower right clamp 89 on the outer surface of the connecting plate portion 93, and each of the four wire guides 153 is wound around. The wire 154 is covered. A ring 155 is fixed to one end of the wire 154 as shown in FIG. This ring 155 is fixed in the wire guide 153 of the lower right clamp 89, and the other end of the wire 154 is inserted into the ring 155.

  As shown in FIG. 8, a drum 156 is attached to the front frame 4, and the other end of the wire 154 passes through the wire guide 153 of the lower right clamp 89 and is connected to the drum 156. The drum 156 is supported on the front frame 4 so as to be rotatable about a shaft 157 directed in the front-rear direction. The other end of the wire 154 is wound around the outer peripheral surface of the drum 156 in a counterclockwise direction. Yes. A driven gear 158 is concentrically fixed to the drum 156, and a driven gear 159 is engaged with the driven gear 158. The main drive gear 159 has a larger diameter than the driven gear 158 and is supported by the front frame 4 so as to be rotatable about a shaft 160 oriented in the front-rear direction. An inner cylinder 56 of the cylinder lock 53 is concentrically connected to the main driving gear 159. The cylinder lock 53 is attached to the front frame 4 so as to be operable from the front, and the main driving gear 159 rotates to the guard position based on the inner cylinder 56 of the cylinder lock 53 being rotated to the lock position. The inner cylinder 56 of the cylinder lock 53 rotates to the guard release position based on the rotation operation to the lock release position.

  FIG. 8 shows a state in which the main driving gear 159 is stopped at the guard position. At the guard position of the main driving gear 159, the inner cylinder is engaged by the engaging force with which each of the plurality of discs 61 of the cylinder lock 53 engages the inner surface of the groove portion 60. 56 is locked so as not to rotate, and the main driving gear 159 is locked so as not to rotate via the inner cylinder 56 of the cylinder lock 53. In this state, the drum 156 is locked so as not to rotate via the driven gear 158, so that each of the upper left clamp 86, lower left clamp 87, upper right clamp 88, and lower right clamp 89 resists the spring force of the spring 152. Held in position. When the upper left clamp 86 to the lower right clamp 89 are held at the guard positions, the front plate portions 91 of the upper left clamp 86 to the lower right clamp 89 face the front flange portion 77 of the front guard frame 75 from the front. The rear plate portions 92 of the upper left clamp 86 to the lower right clamp 89 face the rear flange portion 73 of the rear guard frame 71 from the rear, and the connecting plate portions 93 of the upper left clamp 86 to the lower right clamp 89 are front guards. Both the front flange portion 77 of the frame 75 and the rear flange portion 73 of the rear guard frame 71 are opposed from the outside.

  When the inner cylinder 56 of the cylinder lock 53 is rotated from the locked position to the unlocked position in the counterclockwise direction, the main driving gear 159 rotates from the guard position to the counterclockwise guard releasing position, and the drum 156 is driven. Rotate clockwise through Then, the other end of the wire 154 is unwound from the drum 156, so that each of the upper left clamp 86, the lower left clamp 87, the upper right clamp 88, and the lower right clamp 89 is moved from the guard position to the guard release position by the spring force of the spring 152. To do. At the guard release positions of the upper left clamp 86 to the lower right clamp 89, the front plate portions 91 of the upper left clamp 86 to the lower right clamp 89 are retracted from the front to the outer side of the front flange portion 77 of the front guard frame 75, and the upper left The rear plate portion 92 of each of the clamp 86 to the lower right clamp 89 retreats from the rear of the rear flange portion 73 of the rear guard frame 71 to the outside, and the connecting plate portion 93 of each of the upper left clamp 86 to the lower right clamp 89 is the front guard. Retreat outward from both the front flange portion 77 of the frame 75 and the rear flange portion 73 of the rear guard frame 71.

  When the inner cylinder 56 of the cylinder lock 53 is operated from the unlocked position to the clockwise locked position, the main drive gear 159 rotates from the guard released position to the clockwise guard position, and the drum 156 passes through the driven gear 158. Rotates counterclockwise. Then, since the other end of the wire 154 is wound around the drum 156, each of the upper left clamp 86, the lower left clamp 87, the upper right clamp 88, and the lower right clamp 89 resists the spring force of the spring 152 from the guard release position. Move to position. That is, each of the upper left clamp 86 to the lower right clamp 89 moves to the guard position in conjunction with the operation of the inner cylinder 56 of the cylinder lock 53 to the locked position, and the inner cylinder 56 of the cylinder lock 53 moves to the unlocked position. It moves to the guard release position in conjunction with the operation. Each of the drum 156, the driven gear 158, and the main driving gear 159 constitutes a winding mechanism, and is housed in a common reel case 161 as shown in FIG. The reel case 161 is fixed to the front frame 4 and is disposed behind the front frame 4 so that it cannot be visually recognized from the front.

According to the said Example 3, there exist the following effects.
When the inner cylinder 56 of the cylinder lock 53 is operated to the locked position with the front frame 4 closed, the rear plate portions 92 of the upper left clamp 86 to the lower right clamp 89 are rear flanges of the rear guard frame 71 from the rear. Opposite the part 73. When the fraudster forcibly operates the front frame 4 in the open state with the front frame 4 closed, the rear plate portions 92 of the upper left clamp 86 to the lower right clamp 89 are rear flange portions of the rear guard frame 71. Since it contacts 73, the front frame 4 is restrained in a closed state. In addition, even when a gap is generated between the front flange portion 77 of the front guard frame 75 and the rear flange portion 73 of the rear guard frame 71 based on an unreasonable operating force applied to the front frame 4, the upper left clamp 86 to the right Since the front plate portion 91, the rear plate portion 92, and the connecting plate portion 93 of each of the lower clamps 89 surround the gap between the front flange portion 77 and the rear flange portion 73 from the outside in a U shape, It becomes difficult to insert an unauthorized device such as the like into the game board 18 through the gap between the front flange portion 77 and the rear flange portion 73.

  As shown in FIG. 9, a connecting tool 171 is fixed to the reel case 161, and one end of a wire 154 is connected to the connecting tool 171. One end of the wire 154 passes through the wire guide 153 of the lower right clamp 89 and protrudes to the outside. When the inner cylinder 56 of the cylinder lock 53 is rotated from the locked position to the unlocked position, the wire 154 Based on the other end being rewound from the drum 156, the upper left clamp 86, the lower left clamp 87, the upper right clamp 88, and the lower right clamp 89 are moved from the guard position to the guard release position by the spring force of the spring 152, respectively. When the inner cylinder 56 of the lock 53 is rotated from the unlocked position to the locked position, the other end of the wire 154 is wound around the drum 156 so that each of the upper left clamp 86 to the lower right clamp 89 Moves from the guard release position to the guard position against the spring force.

In each of the third to fourth embodiments, the upper left clamp 86, the lower left clamp 87, the upper right clamp 88, the lower right clamp 89, and the winding mechanism may be mounted on the inner frame 2.
In each of the third to fourth embodiments, the drum 156 may be rotated by a motor. In the case of this configuration, a first sensor that detects that the inner cylinder 56 of the cylinder lock 53 has been operated to the locked position and a second sensor that detects that the inner cylinder 56 has been operated to the unlocked position are provided, and the rotational direction of the motor Is preferably controlled in accordance with the detection results of the first sensor and the second sensor, and the wire 154 is preferably taken in and out of the drum 156.

  In each of the third to fourth embodiments, the drum 156 is connected to the rotation shaft of the motor, and the drum 156 is rotated based on the transmission of the air propagation signal from the remote control device to the motor. Each of the lower clamps 89 may be remotely operated between the guard position and the guard release position.

  An upper left rail 81, a lower left rail 82, an upper right rail 83, and a lower right rail 84 are fixed to the rear surface of the front frame 4 at the outer periphery of the window 23, respectively. As shown in FIG. 10, the guide pin 90 of the upper left clamp 86 is inserted into the guide groove 85 of the upper left rail 81, and the guide pin 90 of the lower left clamp 87 is inserted into the guide groove 85 of the lower left rail 82, A guide pin 90 of the upper right clamp 88 is inserted into the guide groove 85 of the upper right rail 83, and a guide pin 90 of the lower right clamp 89 is inserted into the guide groove 85 of the lower right rail 84. Each of the lower left clamp 87, the upper right clamp 88, and the lower right clamp 89 is movable between the guard position and the guard release position based on the guide pin 90 sliding along the inner surface of the guide groove 85.

  FIG. 10 shows between the upper left clamp 86 and the lower left clamp 87, between the lower left clamp 87 and the lower right clamp 89, between the lower right clamp 89 and the upper right clamp 88, and between the upper right clamp 88 and the upper left clamp 86, respectively. Thus, the case 181 is attached. Each of these four cases 181 is formed by connecting two slide cases 182 so as to be slidable with each other, and is in a contracted state at each guard position of the upper left clamp 86 to the lower right clamp 89. The upper left clamp 86 to the lower right clamp 89 are in the extended state separated from each other at the guard release positions as compared with the reduced state. 10A shows each of the four cases 181 in a contracted state, and FIG. 10B shows each of the four cases 181 in an expanded state.

  As shown in FIG. 11, joint brackets 183 are fixed to both end portions of the upper left clamp 86 to the lower right clamp 89. Each of these eight joint brackets 183 is housed in a case 181, and each of the eight joint brackets 183 is formed with a joint portion 184 having a spherical inner peripheral surface. A ball joint 185 is accommodated in each of the four cases 181. Each of these four ball joints 185 is formed by connecting two rods 186 to each other via a common joint portion 187, and a ball 188 is fixed to the tip of each of the two rods 186. Has been. Each of the eight balls 188 is fitted to the inner peripheral surface of the joint portion 184 of the joint bracket 183, and each of the joint portions 187 of the four ball joints 185 has a ball 188 and a joint portion 184 of the joint bracket 183. It is made movable within the range which can be rotated along the inner peripheral surface.

  As shown in FIG. 11, a plate 189 is fixed inside each of the four cases 181, and a wire holder 190 is fixed to each of the four plates 189. Each of the four wire holders 190 has a cylindrical shape with both end faces opened, and one end portion of the driven wire 191 is inserted into the inner peripheral surface of each of the four wire holders 190. Each of the four driven wires 191 is slidable along the axial direction of the wire holder 190, and a ball 192 is fixed to one end of each of the four driven wires 191. Each of these four balls 192 is fitted into the joint portion 187 of the ball joint 185 in the case 181, and is positioned between the balls 192 and the plate 189 on the outer periphery of the four driven wires 191. The compression coil spring 193 is inserted.

  As shown in FIG. 10, a gear case 194 is fixed to the front frame 4 at the rear of the front frame 4, and the other ends of the four wires 191 are inserted into the gear case 194. Has been. As shown in FIG. 12, a plate 195 is fixed inside the gear case 194, and a wire holder 196 is fixed to the plate 195. The wire holder 196 has a cylindrical shape with both end faces opened, and a main driving wire 197 is slidably inserted in the axial direction on the inner peripheral surface of the wire holder 196. The other end of each of the four driven wires 191 is connected to one end of the main drive wire 197 inside the gear case 194, and a linear gear 198 is connected to the other end of the main drive wire 197. ing.

  As shown in FIG. 12, a gear 199 is accommodated in the gear case 194, and the gear 199 is engaged with the gear 198 of the main driving wire 197. The gear 199 is supported by the front frame 4 so as to be rotatable about a shaft 200 oriented in the front-rear direction, and is connected to the inner cylinder 56 of the cylinder lock 53. The cylinder lock 53 is attached to the front frame 4 so as to be operable from the front, and the gear 199 rotates to the guard position in conjunction with the rotation of the inner cylinder 56 of the cylinder lock 53 to the lock position. The inner cylinder 56 of the cylinder lock 53 rotates to the guard release position in conjunction with the rotation operation to the lock release position.

  When the front cylinder 4 is closed and the inner cylinder 56 of the cylinder lock 53 is stopped at the locked position, the inner cylinder 56 is rotated by the engaging force with which each of the plurality of discs 61 of the cylinder lock 53 engages the inner surface of the groove portion 60. The gear 199 is locked to the guard position through the inner cylinder 56 of the cylinder lock 53 so as not to rotate. In this state, as shown in FIG. 11A, each of the four driven wires 191 is attracted to the gear 199 side against the spring force of the spring 193. Therefore, the upper left clamp 86 and the lower left clamp Each of 87, upper right clamp 88, and lower right clamp 89 is held at the guard position.

  When the inner cylinder 56 of the cylinder lock 53 is rotated from the locked position to the unlocking position in the counterclockwise direction, the gear 199 rotates from the guard position to the guard releasing position in the counterclockwise direction, and the main wire 197 causes the gear 199 to rotate. And slide left. In this case, as shown in FIG. 11 (b), each of the four driven wires 191 is pushed out to the opposite side of the gear 199 by the spring force of the spring 193, so that the upper left clamp 86, the lower left clamp 87 and the upper right clamp Each of the clamp 88 and the lower right clamp 89 moves from the guard position to the guard release position.

  When the inner cylinder 56 of the cylinder lock 53 is operated from the unlock position to the lock position in the clockwise direction, the gear 199 rotates from the guard release position to the guard position in the clockwise direction, and the main drive wire 197 moves to the right via the gear 199. Slide towards. In this case, as shown in FIG. 11A, each of the four driven wires 191 is attracted to the gear 199 side against the spring force of the spring 193, so that the upper left clamp 86 and the lower left clamp 87 Each of the upper right clamp 88 and the lower right clamp 89 moves from the guard release position to the guard position. That is, each of the upper left clamp 86 to the lower right clamp 89 moves to the guard position in conjunction with the operation of the inner cylinder 56 of the cylinder lock 53 to the locked position, and the inner cylinder 56 of the cylinder lock 53 moves to the unlocked position. It moves to the guard release position in conjunction with the operation.

  In the fifth embodiment, the upper left clamp 86, the lower left clamp 87, the upper right clamp 88, the lower right clamp 89, and the case 181 are mounted on the inner frame 2, and the upper left clamp 86 to the lower right clamp 89 are set to the guard position and A wire mechanism that moves between the guard release positions may be attached to the inner frame 2.

  In the fifth embodiment, the gear 199 may be rotated by a motor. In the case of this configuration, a first sensor that detects that the inner cylinder 56 of the cylinder lock 53 has been operated to the locked position and a second sensor that detects that the inner cylinder 56 has been operated to the unlocked position are provided, and the rotational direction of the motor It is preferable that each of the upper left clamp 86 to the lower right clamp 89 is moved between the guard position and the guard release position based on the control of the first sensor and the second sensor according to the detection results of the first sensor and the second sensor.

  In the fifth embodiment, the gear 199 is connected to the rotation shaft of the motor, and the gear 199 is rotated based on the transmission of the air propagation signal from the remote control device to the motor, and the upper left clamp 86 to the lower right clamp 89 Each may be remotely operated between the guard position and the guard release position.

  As shown in FIG. 13, the inner frame 2 is formed with a frame insertion portion 211. The frame insertion portion 211 has a U-shape straddling the upper side, left side, and right side of the inner frame 2, and the front frame 4 is closed in the frame insertion portion 211 of the inner frame 2. Thus, each of the upper plate, the left plate and the right plate of the front frame 4 is inserted. The frame insertion portion 211 has a gap between the inner frame 2 and the front frame 4 when the fraudster forcibly operates the front frame 4 in the open state with the front frame 4 locked in the closed state. This makes it difficult to insert an unauthorized instrument such as a piano wire into the inner frame 2 from the outside of the inner frame 2 through the inner frame 2 and the front frame 2.

  In each of the first to sixth embodiments, the upper left clamp 86, the lower left clamp 87, the upper right clamp 88, and the lower right clamp 89 are replaced with four members of an upper clamp, a lower clamp, a left clamp, and a right clamp. It may be used. Each of the upper clamp to the right clamp is linear when viewed from the front-rear direction. The upper clamp clamps between the front guard frame 71 and the rear guard frame 75 at the upper side, and the lower clamp clamps at the lower side. The left clamp is clamped at the left side, and the right clamp is clamped at the right side.

The figure which shows Example 1 (The figure which shows a pachinko game machine from the front) The figure which shows an inner frame (a is Xa view, b is sectional drawing which follows Xb line, c is sectional drawing which follows Xc line) The figure which shows a front frame (a is Xa view, b is sectional drawing which follows Xb line, c is sectional drawing which follows Xc line) Sectional view showing the internal structure of the cylinder lock The figure which shows a front guard frame and a rear guard frame FIG. 5 equivalent diagram showing the second embodiment. The figure which shows Example 3 (a is a figure which shows a guard member in a guard position, b is a figure which shows a guard member in a guard release position, c is sectional drawing which follows an X-ray) (A) is a figure which shows a wire, (b) is a figure which shows the winding mechanism of a wire The figure which shows Example 4 (The figure which shows the connection state of a wire) The figure which shows Example 5 (a is a figure which shows a guard member in a guard position, b is a figure which shows a guard member in a guard release position) (A) is a figure which shows the internal structure of a case in the guard position of a guard member, (b) is a figure which shows the internal structure of a case in the guard release position of a guard member Diagram showing the internal structure of the gear case The figure which shows Example 6 (a is a figure which shows a pachinko game machine from the front, b is sectional drawing which follows an X-ray)

Explanation of symbols

2 is an inner frame (rear frame), 4 is a front frame, 16 is a launch rail, 18 is a game board, 23 is a window, 24 is a game area, 53 is a cylinder lock (locking mechanism), 56 is an inner cylinder, 58 is a key , 71 is a rear guard frame, 72 is a rear guard portion, 73 is a rear flange portion, 75 is a front guard frame, 76 is a front guard portion, 77 is a front flange portion, 86 is an upper left clamp (guard member), and 87 is a lower left clamp. (Guard member), 88 is an upper right clamp (guard member), 89 is a lower right clamp (guard member), 91 is a front plate portion, 92 is a rear plate portion, and 93 is a connecting plate portion.

Claims (2)

A game board having a game area in which a game ball can roll;
A rear frame for supporting the game board;
A launching rail for launching a game ball on the game board, provided on the rear frame below the game board;
A front frame that is provided on the rear frame and is movable between a closed state that covers the rear frame from the front on the player side and an open state that opens the rear frame forward;
A window provided on the front frame and covering the game area of the game board visually recognizable from the front with the front frame closed;
The rear frame is provided at the outer peripheral portion of the game board and protrudes forward from the rear frame, and protrudes outward from the rear guard part surrounding the game board and the front end part of the rear guard part. A rear guard frame having a rear flange portion surrounding the rear guard portion;
An opening provided in the rear guard frame and allowing a game ball to be launched from the firing rail to the game board through the rear guard frame;
A front guard portion provided at the outer periphery of the window on the front frame and protruding rearward from the front frame in a closed state of the front frame and surrounding the game board as viewed from the front and rear direction; A front guard frame that protrudes outward from the rear end portion of the front guard portion and has a front flange portion surrounding the front guard portion;
It is provided in the rear frame and is operated to move between guard positions different from a predetermined guard position and guard position, and surrounds the game board based on the movement operation to the guard position. A plurality of guard members,
Each of the plurality of guard members is
The front frame is opposed to the front flange portion of the front guard frame so as to constrain the front frame to the closed state based on the movement operation to the guard position in the closed state of the front frame. A front plate portion retracted from the front of the front flange portion of the front guard frame so as to allow the front frame to be operated from the closed state to the open state based on being moved to the guard release position in the closed state. When,
Based on the fact that the front frame is moved to the guard position when the front frame is closed, the rear flange portion of the rear guard frame is opposed to the rear flange portion, and is moved to the guard release position when the front frame is closed. A rear plate portion retracted from the rear of the rear flange portion of the rear guard frame,
The front plate portion and the rear plate portion are connected to each other, and the front flange portion of the front guard frame and the rear guard frame of the front guard frame are operated based on being moved to a guard position in a closed state of the front frame. A pachinko gaming machine having a connecting plate portion facing from the outside on both rear flange portions. A game board having a game area in which a game ball can roll;
A rear frame for supporting the game board;
A launching rail for launching a game ball on the game board, provided on the rear frame below the game board;
A front frame that is provided on the rear frame and is movable between a closed state that covers the rear frame from the front on the player side and an open state that opens the rear frame forward;
A window provided on the front frame and covering the game area of the game board visually recognizable from the front with the front frame closed;
The rear frame is provided at the outer peripheral portion of the game board and protrudes forward from the rear frame, and protrudes outward from the rear guard part surrounding the game board and the front end part of the rear guard part. A rear guard frame having a rear flange portion surrounding the rear guard portion;
An opening provided in the rear guard frame and allowing a game ball to be launched from the firing rail to the game board through the rear guard frame;
A front guard portion provided at the outer periphery of the window on the front frame and protruding rearward from the front frame in a closed state of the front frame and surrounding the game board as viewed from the front and rear direction; A front guard frame that protrudes outward from the rear end portion of the front guard portion and has a front flange portion surrounding the front guard portion;
Provided on the front frame, and is operated to move between a guard release position different from a predetermined guard position and guard position, and is moved to the guard position when the front frame is closed. A plurality of guard members surrounding the game board,
Each of the plurality of guard members is
Based on the fact that the front frame is moved to the guard position when the front frame is closed, the front flange portion of the front guard frame is opposed to the front flange portion, and is moved to the guard release position when the front frame is closed. A front plate portion retracted from the front of the front flange portion of the front guard frame,
The rear frame is opposed to the rear flange portion of the rear guard frame from the rear so as to constrain the front frame to the closed state based on the movement operation to the guard position in the closed state of the front frame. A rear plate portion that retracts from the rear of the rear flange portion of the rear guard frame so as to allow the front frame to be operated from the closed state to the open state based on being moved to the guard release position in the closed state. When,
The front plate portion and the rear plate portion are connected to each other, and the front flange portion of the front guard frame and the rear guard frame of the front guard frame are operated based on being moved to a guard position in a closed state of the front frame. A pachinko gaming machine having a connecting plate portion facing from the outside on both rear flange portions.

Images