JP3829249B2 - Pachinko machine - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a pachinko machine, and more particularly to a safe ball guiding mechanism for guiding a safe ball that has fallen from the back side of a game board.
[0002]
[Prior art]
For example, Japanese Utility Model Publication No. 6-141 is known as a prior art. In this publication, there is formed a safe ball collective discharge area for receiving all safe balls and discharging them to a predetermined downstream side on the inner lower portion of the set board mounted over the housing holding frame and the back surface of the game board. A pachinko machine game ball passage is disclosed in which a partition member covering the required surface area of the front surface of the opening of the safe ball collecting and discharging area is attached to the inner lower portion of the plate.
[0003]
[Problems to be solved by the invention]
An object of the present invention is to smooth and stabilize the flow of a safe ball that has fallen from the back side of a game board.
[0004]
[Means for Solving the Problems]
The pachinko machine according to claim 1 has a game board 12 fitted in an opening of a frame 11 in a base frame 9 fixed to the back surface of the front frame portion 1b, and a prize ball payout unit 45 is provided in the base frame 9. A synthetic resin back frame 40 is rotatably assembled and aligned with the back side of the game board 12.
Also, a safe ball collecting passage for receiving a safe ball passed from the back side of the game board 12 and guiding it to the downstream side on the front side of the rear road wall 59 formed in the lower frame portion of the back frame 40 On the other hand, a prize ball paid out from the prize ball payout unit 45 is introduced into a predetermined portion corresponding to the safe ball collecting passage 63 on the back side of the rear road wall 59 of the back frame 40. A back cover plate 70 for discharging is removably attached.
[0005]
In the safe ball gathering passage 63, the front road wall 58 suspended in a pressed state against the back surface of the game board 12 and the rear wall of the front road wall 58 are suspended at a ball passage interval. An inclined saddle plate 60 for rolling and guiding the safe ball downstream is formed between the rear frame 40 and the rear road wall 59, and between the upper surface of the saddle plate 60 and the front surface of the rear road wall 59. The collecting portion 63a and the merging portion 63c are formed in communication.
Further, on the inner surface of the front wall 58 of the safe ball collecting passage 63, rectifying ribs 67A and 67B for safe balls are formed along the ball flow direction, and the rear wall 59 of the safe ball collecting passage 63 is formed. An elongate safe sphere monitoring window 84 through which the flow state of the safe sphere in the merging portion 63c can be seen through is established along the road surface 63e of the merging portion 63c.
[0006]
In the back cover plate 70, the prize balls paid out from the prize ball payout unit 45 are introduced to the front side of the rear wall portion 70a, which is the back side plate portion of the back cover plate 70, and guided downstream. A prize ball guiding passage 80 to be discharged is formed, and the safe ball collecting passage 63 is adjacent to the rear side of the safe ball monitoring window 84 at a predetermined portion of the rear wall portion 70a that does not interfere with the prize ball guiding passage 80. Horizontal shape Safe sphere transparent window 87 that can perspective Safe sphere and passing state passing through the merging portion 63c is not opened in a penetrating manner, a predetermined portion of the back surface side of the road wall 59 after the back frame 40 in a state where the rear cover plate 70 is attached by longitudinal communication with the said safe sphere monitoring window 84 and the safe sphere transparent window 87, the confluent portion of the safe ball collecting passage 63 from the rear side of the back cover plate 70 63c It has set the safe sphere perspective to be able to.
[0007]
[Action]
In the pachinko machine according to claim 1, the game board 12 is fitted into the opening of the frame body 11 in the base frame 9 fixed to the back surface of the front frame portion 1 b, and the prize ball payout unit 45 is inserted into the base frame 9. A provided synthetic resin back frame 40 is rotatably assembled and aligned with the back side of the game board 12.
In addition, this pachinko machine accepts a safe ball passed from the back side of the game board 12 to the front side of the rear road wall 59 formed in the lower frame portion of the back frame 40 and guides it to the downstream side. The safe ball collecting passage 63 is formed, and on the back side of the rear road wall 59 of the back frame 40, a prize paid out from the prize ball dispensing unit 45 to a predetermined portion corresponding to the safe ball collecting passage 63 is provided. A back cover plate 70 for introducing and discharging the balls is removably attached.
[0008]
The safe ball collecting passage 63 is suspended from the front road wall 58 suspended in a pressed state against the back surface of the game board 12 and the rear side of the front road wall 58 with a ball passage interval. An inclined saddle plate 60 for rolling and guiding the safe ball downstream is formed between the back frame 40 and the rear road wall 59, and an upper surface of the saddle plate 60 and a front surface of the rear road wall 59 are formed. A collecting portion 63a and a merging portion 63c are formed in communication with each other.
Further, on the inner surface of the front wall 58 of the safe ball collecting passage 63, rectifying ribs 67A and 67B for safe balls are formed along the ball flow direction, and the rear wall 59 of the safe ball collecting passage 63 is formed. An elongate safe sphere monitoring window 84 that can see through the flow state of the safe sphere in the merging portion 63c is opened at a predetermined portion along the road surface 63e of the merging portion 63c. be able to.
[0009]
On the other hand, in the back cover plate 70, the prize balls paid out from the prize ball payout unit 45 are introduced to the front side of the rear wall portion 70a, which is the back side plate portion of the back cover plate 70, to the downstream side. A prize ball guiding passage 80 for guiding and discharging is formed, and the safe ball collecting passage 63 is adjacent to the rear side of the safe ball monitoring window 84 at a predetermined portion of the rear wall portion 70a that does not interfere with the prize ball guiding passage 80. A safe sphere passing through the merging portion 63c and a horizontally-long safe sphere transparent window 87 through which the passing state can be seen through are opened in a penetrating manner .
Then, in a state in which the rear cover plate 70 at a predetermined portion of the back side is attached to the road-wall 59 after the back frame 40, the front and rear communicating state with the safe sphere monitoring window 84 and the safe sphere transparent window 87, From the back side of the back cover plate 70, the circulation state of the safe spheres in the merging portion 63c of the safe sphere collecting passage 63 can be seen.
[0010]
【The invention's effect】
In the pachinko machine according to claim 1, in the back frame 40, the rectifying ribs 67 </ b> A and 67 </ b> B for the safe sphere are formed along the sphere flow direction on the road inner surface of the front road wall 58 of the safe sphere collecting passage 63. The spheres flow down in an aligned state while being in contact with the ribs 67A and 67B, and in a state where the back cover plate 70 is attached, a safe sphere monitoring window 84 and a safe sphere see-through window 87 opened in a penetrating manner. Can see the safe sphere in the confluence portion 63c of the safe ball collecting passage 63, so that the presence or absence of clogging of the safe ball collecting passage can be easily recognized from the rear side of the pachinko machine, and the rolling safe ball It is possible to discharge the dust adhering to the through the safe ball monitoring window 84 and the safe ball see-through window 87 .
Further, since the prize ball guiding passage 80 is formed in the back cover plate 70, the change of the back cover plate 70 can be performed without changing the entire back frame 40 in changing the prize ball guiding passage 80. That is, it is possible to cope by attaching only another new back cover plate 70.
[0015]
【Example】
Next, an embodiment of the present invention will be described with reference to the drawings.
The wooden frame 1 of the pachinko machine is installed on the front side of the rear frame portion 1a by being connected to the rear frame portion 1a by a hinge so as to be pivotable forward by a square frame-shaped rear frame portion 1a standing at a fixed position. And a rectangular frame-shaped front frame portion 1b.
[0016]
A synthetic resin base frame 9 formed by detachably connecting an upper first member and a lower second member to each other is fixed to the back surface of the front frame portion 1b of the wooden frame 1 by screws.
[0017]
The base frame 9 has a set plate 10 disposed at the lower end portion thereof and screwed to the back surface of the lower end portion of the front frame portion 1b of the wooden frame 1, and a base plate 9 disposed above the set plate 10 to A frame 11 having an opening having a shape substantially equal to the opening of the front frame 1b is formed, and a game board 12 is fitted in the opening of the frame 11 so as to be able to be taken out rearward.
[0018]
In the lower frame portion of the frame 11, a previous prize ball opening 20 is provided for introducing a prize ball into the upper plate.
[0019]
The front surface of the set plate 10 of the base frame 9 is substantially aligned with the game board surface 12a. The front surface of the set plate 10 receives the game ball sent from the upper plate at the base end that is the starting point of the ball and launches the ball. The launch rail 15 that guides the game board 12a to the game board surface 12a is fixed in an ascending posture, and the set board 10 is attached with a launch mechanism that launches the game balls on the launch rail 15 toward the game board surface.
[0020]
Near the one end of the front surface of the set plate 10, a cylindrical speaker housing portion 21 that is attached to the set plate 10 and emits a sound effect or the like is housed, and is projected on the upper surface of the speaker housing portion 21. A ball receiving surface 21a for guiding a spilled ball that has fallen onto the speaker 17 diagonally downward on both sides is formed in a circular arc shape.
[0021]
A speaker cover rod 18 that is coupled to the set plate 10 and covers the front surface of the speaker 17 and both sides thereof is installed adjacent to the side of the launch rail 15 on the front side of the set plate 10.
[0022]
In the vicinity of the inner end of the speaker cover rod 18, a foul sphere guiding portion 18a whose upper surface is inclined downward toward the firing rail 15 is formed, and between the foul sphere guiding portion 18a and the tip of the firing rail 15 is formed. A foul ball through hole 19 is formed through which a foul ball that has been struck to the game board surface and flows backward is passed.
[0023]
A first spilled ball that is installed below the speaker storage portion 21 in a state of being inclined downward inwardly on the front side of the set plate 10 and guides the spilled ball that has collided with the ball receiving surface 21a and dropped. A guide plate 22 and a second spilled ball guide plate 23 are formed below the firing rail 15 so as to be inclined inward and downward to guide the spilled ball inward.
[0024]
On the back surface of the set plate 10, an out-ball guide plate 24 installed in a state of being inclined downward and outward in the vicinity of the center of the set plate 10, and inwardly outwardly outward of the out-ball guide plate 24 A third spilled sphere guide plate 25 installed in a tilted state with a gap is connected.
[0025]
Near the center of the set plate 10, a pair of left and right vertical side wall portions 26a, a rear wall portion 26b connected orthogonally to the rear end edges of the both side wall portions 26a, both side wall portions 26a and the rear wall portions A ball guide case 26 having a bottom wall portion 26c connected to the lower end edge of 26b and inclined in a forward and downward direction and having an opening portion 26d at the upper end is integrally formed.
[0026]
The ball guiding case 26 is installed for the purpose of receiving a prize ball and a foul ball to be paid out to the player from above and sending them into the lower pan in the front lower part, and in this ball guiding case 26 a ball through which the prize ball and the foul ball pass. A discharge passage 32 is formed from the rear upper end to the front lower end.
[0027]
A plurality of reinforcing ribs 26e that reinforce the rear wall portion 26b and the bottom wall portion 26c are formed on the rear surface of the ball guide case 26 so as to protrude in parallel over the rear surface of the rear wall portion 26b and the lower surface of the bottom wall portion 26c. .
[0028]
On the upper and lower parts of the inner wall surface of the ball guiding case 26, the drop from the starting point of the pachinko ball falling into the ball guiding case 26 to the falling point where the pachinko ball collides is reduced to buffer the falling impact of the pachinko ball. For the purpose, a pair of upper and lower buffer plates 27, 27 are connected in the ball guiding case 26 so as to be inclined downwardly in opposite directions.
[0029]
The front portion of the upper buffer plate 27 extends forward of the lower buffer plate 27 so that the falling impact of the foul ball is buffered.
[0030]
The prize ball that has fallen into the ball guiding case 26 collides with the upper buffer plate 27 and rolls along the upper buffer plate 27, and then collides with the lower buffer plate 27 to cause the lower buffer plate 27 to fall. And then falls onto the bottom wall portion 26c of the ball guiding case 26, or collides with the lower buffer plate 27 and then falls onto the bottom wall portion 26c to enter the ball guiding case 26. Drop shocks of the dropped prize balls are buffered by both buffer plates 27.
[0031]
A pachinko ball passing through the ball discharge passage 32 is disposed near and at the lower end of the rear wall portion 26b of the ball guide case 26 above and below the tip edge of the lower buffer plate 27, and the passage state thereof. A set of three first prize ball see-through holes 31 to be monitored is opened.
[0032]
A pachinko ball is supported in the upper part of the sphere guide case 26 so as to be swingable in the left-right direction by a support shaft 38 connected to the rear wall portion 26 b of the sphere guide case 26 and protruding forward. A full tank detecting piece 39 that swings when it is full is installed in a state covered with the upper buffer plate 27.
[0033]
The full tank detecting piece 39 is formed with a protruding piece 39a that pushes up the tactile piece 47a of the full tank detecting switch 47 attached to the front surface of the set plate 10 when the full tank is full.
[0034]
On the back surface of the set plate 10, the vertical wall plate 13 is vertically suspended with its upper end edge connected to the tip edge of the third spilling ball guide plate 25, and the upper end edge is connected to the lower end edge of this vertical wall plate 13. The edge is connected to the sphere guide case 26, and the flange 14 having a cross-sectional shape bent into an L shape is integrally formed. The upper surface of the lower piece 14a of the flange 14 is inclined downward and downward. A plurality of ridges 14b are projected in parallel.
[0035]
Between the ball guide case 26 and the vertical wall plate 13, a pair of left and right side wall portions 29a, a rear wall portion 29b connected to the rear end edges of the both side wall portions 29a, and a lower end edge of the rear wall portion 29b are provided. A game ball assembly case 29 having a bottom wall portion 29c which is connected and slightly protruded forward, is detachably locked to the set plate 10 and is installed on the side plate 14 on the side of the ball guide case 26. Is sandwiched.
[0036]
A game ball discharge passage 30 for collecting safe balls and out balls and guiding them outside the pachinko machine is formed in the game ball assembly case 29, and the base plate 14, the lower surface of the game ball assembly case 29, and the ball guide case 26 Between the side surfaces, there is a game ball outlet 33 that is formed below the game ball assembly case 29 and guides the out ball and the safe ball that have fallen into the game ball assembly case 29 to the rear to discharge them out of the pachinko machine. It has been established.
[0037]
The out ball that has been rolled down from the tip of the out ball guide piece 24 and the spilled ball that has been rolled down from the tip of the third spilled ball guide plate 25 fall into the game ball assembly case 29 and pass through the game ball discharge port 33. And discharged outside the pachinko machine.
[0038]
On the back surface 12b of the game board 12, there is a safe ball passage 35 through which a safe ball that falls through the game board 12 passes through the game board 12 through the winning opening and start port of the game board surface 12a and passes through the back surface 12b of the game board 12 passes. Is formed.
[0039]
A synthetic resin back frame 40 installed on the rear side of the frame body 11 and the game board 12 of the base frame 9 is assembled to the base frame 9 so as to be removable and pivotable to the rear. A lower frame part and left and right side frame parts are formed.
[0040]
A vertically long prize ball payout unit 45 for controlling the payout of prize balls is detachably attached to the back surface of one side frame portion of the back frame 40.
[0041]
A front road wall 58 that is suspended in a state where it is pressed against the back surface 12b of the game board 12 and a single pachinko ball can pass behind the front road wall 58 at the lower frame portion of the back frame 40. A rear road wall 59 suspended from the gap is formed in a front-rear parallel manner.
[0042]
In the lower frame portion of the back frame 40, the front edge is aligned with the front surface of the front road wall 58, the rear edge is aligned with the rear surface of the rear road wall 59, and is adjacent to the rear side of the front prize ball opening 20 of the base frame 9. The installed post prize ball port 57 is opened facing the front prize ball port 20 in a butting manner.
[0043]
The lower frame portion of the back frame 40 is connected to the front and rear road walls 58 and 59 and has a length equal to the lateral width of the front road wall 58, and is inclined downward toward the prize ball payout unit 45. The first slat plate 60 is connected to the front and rear road walls 58 and 59 and has a length approximately half the length of the first slat plate 60. A second saddle plate 61 inclined in a backward and downward direction in the reverse direction, and one end connected to the tip of the second saddle plate 61 and the first saddle plate below the second saddle plate 61. And a third saddle plate 62 that is inclined in the downward direction in the same direction as the tilt direction of 61 and has an increased inclination angle near the inner end, and the tip end portion of the first saddle plate 60 is a prize ball. Arranged on the front side of the safe ball detection port 56 opened at the lower end of the case body of the payout unit 45, the tip of the second saddle plate 61 is the first saddle plate 6. It is disposed above the horizontal center of the.
[0044]
Between the front and rear road walls 58 and 59 of the back frame 40, it is disposed below the safe ball channel 35 on the first and second board 60 and 61, and passes through the respective parts on the back of the game board 12. A safe sphere collecting passage 63 is formed that collects the safe spheres that have fallen down and guides them to the obliquely downward direction in the lateral direction.
[0045]
In the safe ball gathering passage 63, the safe balls that have fallen from one side of the virtual bisector a that bisects the back surface 12b of the game board 12 in the horizontal direction are collected and flowed down to the bisector a side. A first set part 63a, a second set part 63b that collects each safe sphere that has fallen from the other side of the bisector a and flows down from the opposite direction to the bisector a side, and a first set A merging portion 63c that is arranged downstream of the portion 63a and merges each safe sphere that goes straight through the first collecting portion 63a and each safe sphere that passes through the second collecting portion 63b and makes a U-turn, and this merging portion An alignment portion 63d is formed that aligns the safe spheres that have passed through 63c in a horizontal row and flows down toward the safe sphere detection port 56.
[0046]
The joining portion 63c of the safe ball collecting passage 63 is formed in a tapered shape so that the passage height from the road surface 63e near the joining portion 63c to the ceiling surface 63f gradually decreases toward the downstream, and the alignment portion 63d is formed with the passage height. The pachinko sphere is formed so that the length is constant and the pachinko balls pass in a row.
[0047]
Each safe ball that has fallen onto the first base plate 60 from one side of the bisector a of the back surface 12b of the game board 12 passes through the first collecting portion 63a, the joining portion 63c, and the aligning portion 63d. After passing through the straight path, the rear end is guided rearward at the tip of the alignment portion 63d and introduced into the safe ball detection port 56.
[0048]
Each safe ball that has fallen onto the second saddle plate 61 from the area on the other side of the bisector a passes through the second set part 63b and then goes from above to below slightly ahead of the second set part 63b. Make a U-turn and enter the merging portion 63c. After being introduced from the merging portion 63c to the aligning portion 63d and passing through the U-turn path passing through the second collecting portion 63b, the merging portion 63c and the aligning portion 63d, the alignment is performed. It is guided rearward at the tip of the portion 63 d and introduced into the safe ball detection port 56.
[0049]
On the inner wall surface of the front road wall 58 , a safe that extends along the road surface 63e with the same odor distribution as that of the road surface 63e of the safe ball collection passage 63 on the first wall 60 and passes through the safe ball collection passage 63. First and second rectifying ribs 67A and 67B that regulate the flow of the sphere are provided in parallel. However, a rectifying groove may be provided in place of the rectifying ribs 67A and 67B.
[0050]
The first rectifying rib 67A is formed from the road surface 63e of the safe ball collecting passage 63 upward at a position substantially spaced apart from the radius of the pachinko sphere over the first collecting portion 63a, the merging portion 63c, and the aligning portion 63d. .
[0051]
An appropriate number of second rectifying ribs 67B that extend in the vicinity of the merging portion 63c above the first rectifying rib 67A and whose length changes stepwise in accordance with the change in the passage height of the merging portion 63c. Are arranged in parallel with gaps reduced from the outer diameter of the pachinko balls.
[0052]
Near the end on the prize ball payout unit 45 side at the lower end between the front and rear road walls 58 and 59, the base end is disposed on the front side of the safe ball detection port 56, and the tip is above the gaming ball assembly case 29. And a fourth slat 65 connected to the front and rear road walls 58 and 59 in a state where it is inclined inwardly downward, and a front and rear sway installed above the fourth slat 65 A fifth saddle plate 66 connected to each of the walls 58 and 59 is formed, and rolls on the fourth saddle plate 65 between the front and rear road walls 58 and 59 from the inside of the safe ball detection port 56 to the front side thereof. A safe ball guiding passage 69 for guiding the detected safe ball toward the game ball collecting case 29 is formed.
[0053]
The safe sphere discharged from the safe sphere detection port 56 to the front side thereof rolls down onto the base end portion on the fourth slat plate 65 and passes through the safe sphere guide passage 69, and from the distal end portion of the fourth slat plate 65. It falls down and falls into the game ball assembly case 29, flows down the game ball discharge passage 30, and is discharged out of the pachinko machine from the game ball discharge port 33.
[0054]
At the lower end of the rear surface of the front road wall 58, a safe ball that is extended along the fourth hook plate 65 in an inclined state parallel to the fourth hook plate 65 and rolls on the fourth hook plate 65 is orderly arranged. A third straightening rib 68 is provided in a straight line so as to straighten the flow of the safe ball and adjust the flow of the safe ball.
[0055]
On the rear road wall 59 of the back frame 40, the flow state of the safe sphere at the collecting portion 63 a on the first saddle plate 60 is seen through from behind the back frame 40 upstream of the merging portion 63 c of the safe ball collecting passage 63. Two sets of monitoring holes 64 are opened in one set.
[0056]
After passage in the wall 59 formed in the first trough plate 60 on the safe ball manifolds 63 elongated rectangular shape is extended obliquely along the road in the vicinity of the merging portion 63c of the confluence portion of the safe ball manifolds 63 63c A pair of safe sphere monitoring windows 84 that allow the flow state of the safe spheres upstream and downstream from the back frame 40 to be seen through are opened.
[0057]
On the front road wall 58, a pair of dust removal windows 96 that are formed in a horizontally long shape along the road surface 63e of the safe ball collecting passage 63 and disposed in front of the safe ball monitoring window 84 are provided. The dust removing window 96 is formed for the purpose of removing dust adhering to the road surface 63e or repairing the clogging by inserting a stick or the like into the dust removing window 96.
[0058]
In the vicinity of the center portion of the front surface of the front road wall 58, a positioning protrusion 95 engaged with a positioning hole recessed in the back surface 12b of the game board 12 is integrally projected. This positioning projection 95 is formed for the purpose of designating the relative position between the game board 12 and the safe ball collecting passage 63 and introducing the safe ball into the safe ball collecting passage 63 at an appropriate position.
[0059]
Cylindrical engaging portions 94 respectively engaged with convex portions provided on the front surface of the rear road wall 59 are provided at both ends and the center of the rear surface of the front road wall 58. For the purpose of simplifying and improving the assembly of the front road wall 58 to the rear road wall 59 by designating the relative position, it is integrally projected.
[0060]
Near the central portion of the rear surface of the rear road wall 59, a bell mounting portion 92 is provided which projects rearward and a bell 89 is coupled to the rear end by a screw 93. The bell mounting portion 92 is integrally formed with the bell 89. And a screw hole into which a screw 93 is screwed at the rear end of the bell mounting portion 92 is formed in a bell to the back frame 40. It is engraved for the purpose of simplifying the mounting of 89.
[0061]
A box-shaped back cover plate 70 that is open to the front and covers approximately half of the rear road wall 59 is removably attached to the rear surface of the rear road wall 59 with screws.
[0062]
The back cover plate 70 has a rear wall portion 70a suspended from its rear end portion, an upper wall portion 70b connected to the upper edge of the rear wall portion 70a and projecting forward, and a lower end of the rear wall portion 70a. The lower wall portion 70c connected to the edge and protruding forward, the outer wall portion 70d connected to the outer edge of the rear wall portion 70a and protruding forward, and the inner edge of the rear wall portion 70a An inner wall portion 70e that is connected and protrudes forward is formed.
[0063]
Near the upper and lower ends of the outer wall portion 70 d of the back cover plate 70, there are an upper ball inlet 70 f for receiving a prize ball from the prize ball payout unit 45 and a lower ball inlet 70 g for receiving a draw ball from the prize ball payout unit 45. It is open.
[0064]
The rear cover plate 70 has a rear wall portion 70a , which is installed on the front surface of the rear wall portion 70a so as to incline downward inwardly below the upper wall portion 70b, and has an outer edge connected to the lower opening edge of the upper sphere inlet 70f. A second flange 72 connected to the inner edge of the first flange 72 and inclined in a downwardly descending manner downward near the inner end of the first flange 72. Of the first collar 72, a third collar 74 installed in a state of being curved in a substantially arc shape inside the first collar 72, and a second collar 73 below the second collar 73. A fourth collar 75 installed in parallel with the fourth collar 75, and a fifth collar 76 connected to the outer edge of the fourth collar 75 and installed almost vertically below the fourth collar 75. A sixth collar 77 connected to the lower edge of the fifth collar 76 and inclined downward inwardly below the fourth collar 75; and a fifth collar 76 outward and downward A seventh eaves portion 78 having an upright portion, a central portion and a lower portion that are curved in an approximately S shape, and a lower end edge connected to the lower wall portion 70c; and a portion near the upper end of the seventh eave portion 78 An eighth eaves 79 having a plurality of ridges 79a that are installed in a substantially horizontal shape outward, the outer edge is connected to the outer wall 70d, and the upper surface is inclined forward and downward. And are connected.
[0065]
The front end edge of the eighth collar 79 of the back cover plate 70 is the lower end of the rear prize ball mouth 57 so that the prize ball that has fallen onto the eighth collar 79 is introduced into the rear prize ball mouth 57. Are arranged at the rear of the front wall of the lower wall portion 70c in the vicinity of the central portion in the left-right direction and the inner portion of the lower end of the seventh collar portion 78. In addition, the rear wall portion 29 b of the game ball assembly case 29 and the rear wall portion 26 b of the ball guide case 26 are disposed slightly above the ball guide case 26 so as to be introduced into the ball guide case 26.
[0066]
The back cover plate 70 has a curved shape at a plurality of locations, and prize ball guiding passages 80 through which the prize balls sent out from the prize ball payout unit 45 pass are each of the flange portions 72 to 79 and the wall portions 70a to 70e. Among the prize balls formed by the above and introduced into the back cover plate 70, the prize balls that have passed through the upper part of the prize ball guiding passage 80 and dropped onto the eighth collar 79 are the rear prize ball port 57 and the previous prize. It passes through the ball opening 20 and is fed into the upper plate.
[0067]
Also, the prize balls that have passed through the upper and lower parts of the prize ball guiding passage 80 and dropped onto the lower wall portion 70c fall into the ball guiding case 26, pass through the ball guiding case 26, and are fed into the lower plate. . The safe ball collecting passage 63 and the prize ball guiding passage 80 are partitioned by a rear road wall 59 .
[0068]
At the lower end of the back cover plate 70, outside the central portion on the lower wall portion 70 c, a ball that has been introduced into the back cover plate 70 through the lower ball inlet 70 g at the time of ball removal is placed in the game ball assembly case 29. A ball extraction passage 85 for guiding to is formed.
[0069]
A plurality of second prize ball see-through holes 81 are provided on the rear wall portion 70a of the back cover plate 70 to monitor the state of the prize balls disposed above the eighth flange 79 and fed into the rear prize ball opening 57. A third prize ball see-through hole 82 which is disposed above the inner end of the lower wall part 70c and which passes through the outlet part of the prize ball guiding passage 80 and monitors the state of the prize ball, and the center part of the lower wall part 70c. And a through-hole see-through hole 83 for monitoring the state of the extracted ball passing through the ball-extracting passage 85 is opened, and the back cover plate 70 is adjacent to the rear side of the safe-sphere monitoring window 84. Thus, a safe sphere passing through the safe sphere collecting passage 63 and a pair of horizontally long safe sphere transparent windows 87 for monitoring the passage state thereof are opened in a penetrating manner. Both safe spherical see-through windows 87 are respectively surrounded by a cylindrical wall body 91 connected to the rear wall portion 70a and the cover plates 76, 77, 78.
[0070]
Subsequently, the operation and effect of the embodiment having the above-described configuration will be described.
In this example, the safe balls that have fallen along the respective portions of the back surface 12b of the game board 12 are collected between the front and rear road walls 58 and 59 formed in the lower portion of the back frame 40 and are guided to the safe ball detection port 56. A ball collecting passage 63 is formed, and the safe ball collecting passage 63 collects each safe ball that has fallen from an area on one side of the bisector a that divides the back surface 12b of the game board 12 into approximately two equal parts in the horizontal direction. A first set part 63a that flows down to the bisector side and a second set part that collects each safe sphere that has fallen from the other side of the bisector a and flows down from the reverse direction to the bisector a side. 63b, a tapered merging portion 63c that merges each safe sphere that goes straight through the first collecting portion 63a and each safe sphere that passes through the second collecting portion 63b and makes a U-turn, and the merging portion 63c Each safe ball is aligned in a horizontal row to flow down A first rectifying rib 67A formed along the road surface 63e across the first collecting portion 63a, the merging portion 63c and the alignment portion 63d on the inner wall surface of the front road wall 58; An appropriate number of second rectifying ribs 67B, which are juxtaposed above the one rectifying rib 67A and whose tip ends are extended in the vicinity of the merge portion 63c, are provided in parallel.
[0071]
For this reason, the flow state of each safe sphere can be naturally regulated by the first rectifying rib 67A while the safe sphere passes through the safe sphere collecting passage 63, and the disturbance of the safe sphere passing through the safe sphere collecting passage 63 is prevented. Correction can prevent the occurrence of clogging in the safe ball collecting passage 63.
[0072]
Accordingly, it is possible to solve the problem that the detection of the safe ball is delayed due to the clogging of the ball generated in the safe ball collecting passage 63, or the prize ball is not paid out because the detection becomes impossible.
[0073]
Further, the safe sphere that falls to the first collecting portion 63a of the safe sphere collecting passage 63 is buffered and rectified by the second rectifying rib 67B, and then guided by the first rectifying rib 67A to be orderly entered into the merging portion 63c. In addition, the safe ball that has passed through the second collecting portion 63b can be smoothly U-turned while being rectified by the second rectifying rib 67B and smoothly entered into the merging portion 63c. The flow of the safe sphere entering the sphere and the flow of the safe sphere entering the merging portion 63c from the second gathering portion 63b interfere with each other, thereby eliminating the problem that the sphere clogging occurs at the merging portion 63c. .
[0074]
Further, the front road wall 58 of the back frame 40 is reinforced by the rectifying ribs 67A and 67B to improve the strength characteristics of the front passage wall 58 , and the front road wall 58 is prevented from being damaged or cracked due to the drop impact action of the safe ball. be able to.
[Brief description of the drawings]
FIG. 1 is a back view of a pachinko machine showing an embodiment of the present invention.
FIG. 2 is a front view of a main part of a base frame.
FIG. 3 is a back view of the main part of the base frame.
FIG. 4 is a side view of the main part of the back frame.
5 is a cross-sectional view taken along line X1-X1 of FIG.
6 is an enlarged sectional view taken along line X2-X2 of FIG.
7 is an enlarged sectional view taken along line X3-X3 of FIG.
FIG. 8 is a back view of the main part of the back frame.
[Explanation of symbols]
9 Base frame 12 Game board 40 Back frame 58 Front road wall 59 Rear road wall 63 Safe ball gathering passage 63a First gathering part 63b Second gathering part 63c Merging part 63d Alignment part 63e Road surface 67A First straightening rib 67B Second Straightening rib 68 Third straightening rib

Claims (1)

The game board 12 is fitted into the opening of the frame 11 in the base frame 9 fixed to the back surface of the front frame 1b, and the synthetic resin back frame 40 is provided with a prize ball payout unit 45 in the base frame 9. Is a pachinko machine that is rotatably assembled and aligned with the back side of the game board 12,
On the front side of the rear road wall 59 formed in the lower frame portion of the back frame 40, there is a safe ball collecting passage 63 for receiving a safe ball passed from the back side of the game board 12 and guiding it to the downstream side. On the other hand, the prize balls paid out from the prize ball payout unit 45 are introduced into a predetermined portion corresponding to the safe ball collecting passage 63 on the back side of the rear road wall 59 of the back frame 40 and discharged. A back cover plate 70 is detachably attached,
In the safe ball gathering passage 63, the front road wall 58 suspended in a pressed state against the back surface of the game board 12 and the rear wall of the front road wall 58 are suspended at a ball passage interval. An inclined saddle plate 60 for rolling and guiding the safe ball downstream is formed between the rear frame 40 and the rear road wall 59, and between the upper surface of the saddle plate 60 and the front surface of the rear road wall 59. The collecting portion 63a and the merging portion 63c are formed in communication with each other,
On the inner surface of the front wall 58 of the safe ball collecting passage 63, rectifying ribs 67A and 67B for safe balls are formed along the ball flow direction, and a predetermined portion of the rear wall 59 of the safe ball collecting passage 63 is formed. Is provided with an elongated safe sphere monitoring window 84 through which the flow state of the safe sphere in the merging portion 63c can be seen through along the road surface 63e of the merging portion 63c.
In the back cover plate 70, the prize balls paid out from the prize ball payout unit 45 are introduced into the front side of the rear wall portion 70a, which is the back side plate portion of the back cover plate 70, and guided and discharged downstream. A prize ball guiding passage 80 is formed, and a joining portion of the safe ball collecting passage 63 is adjacent to the rear side of the safe ball monitoring window 84 at a predetermined portion of the rear wall portion 70a that does not interfere with the prize ball guiding passage 80. A safe sphere transparent window 87 that can be seen through the safe sphere passing through the inside of 63c and its passing state is opened in a penetrating manner ,
In a state where the back cover plate 70 is attached to a predetermined part on the back side of the rear road wall 59 of the back frame 40, the back cover of the safe ball monitoring window 84 and the safe ball see-through window 87 is connected to the back cover. A pachinko machine characterized in that the safe sphere in the merging portion 63c of the safe sphere collecting passage 63 can be seen through from the back side of the plate 70.

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