JPH0515645A - Out-ball tank and its fitting device - Google Patents

Abstract

PURPOSE:To provide the out-ball tank and its fitting device which can reduce horizontal width of the out-ball tank, can facilitate a work for attaching to a frame body of a pinball machine installation island, and also, can adjust freely a position of the out-ball tank, and moreover, can be attached and detached simply, and can reduce its cost. CONSTITUTION:An out-ball tank 10 is formed by providing a tank member 20, and a tank supporting member 30 in which the tank member 20 is installed so as to be attachable and detachable, and a transfer passage 33 for arranging in order out-balls received by the tank member 20 is formed so as to extend in the forward and the backward directions and so as to protrude forward. A fitting device of the out-ball tank 10 is provided with a rail member 7O fixed onto a fitting base A, a slide member 40 which is fitted to the rail member 70 so as to be movable and supports the tank supporting member 30, and lock members 50, 60.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an out ball tank which is provided on a mounting base on the back side of a pachinko machine and receives out balls discharged from the pachinko machine, and an out ball tank which supports the out ball tank. Regarding mounting device.

[0002]

2. Description of the Related Art As a conventional out ball tank of this type and a device for mounting the out ball tank, for example, Japanese Patent Publication No.
-18388.

That is, the inclined bottom surface portion of the tank portion for receiving the out balls is formed with a passage portion extending obliquely downward from one end side to the other end side of the tank portion. The passage portion is for aligning the balls in the out-ball tank in a line so as to be counted by the sensor and guiding the balls downward. The sloping bottom of the out ball tank requires a certain length in order to transfer the balls in the out ball tank to one end side of the passage part without interruption, so that the out ball tank can be placed on both sides of the pachinko machine. Is formed to extend to.

Further, the out ball tank is integrally provided and supported by a back cover member attached to the back side of the pachinko machine, and the back cover member is screwed to a mounting base on the back side of the pachinko machine. It is fixed by.

[0005]

However, in such a conventional technique, since the lateral width of the out-ball tank becomes long, when the pachinko machine is installed in parallel with the frame body of the pachinko machine installation island, the back surface of the pachinko machine is reduced. It is necessary to be careful so that the out ball tanks that extend in both directions on the side do not interfere with other objects, and the work of arranging the pachinko machines on the frame side by side is troublesome, time consuming, and costly. It was

Further, since the outlets of the out balls are provided at different positions depending on the manufacturer and model of the pachinko machine, the work of mounting the out ball tank at the best position is troublesome, and the pachinko machine must be replaced every time. In addition, it is necessary to remove the out ball tank and replace the out ball tank after removing the screw, which is troublesome and costly.

The present invention has been made by paying attention to such a conventional problem, and the lateral width of the out-ball tank can be made small, and the work for attaching it to the frame body of the pachinko machine installation island is easy. With the object of providing an out ball tank and a mounting device for the out ball tank, the position of the out ball tank can be freely adjusted, and the out ball tank can be easily attached and detached to reduce the cost. There is.

[0008]

[Means for Solving the Problems] The gist of achieving the above-mentioned object is as follows: 1 Provided on a mounting base on the back side of a pachinko machine,
An out ball tank for receiving out balls discharged from the pachinko machine, comprising: a tank member that stores the out balls; and a tank support member that is detachably attached to the tank member and that is installed on the mounting base. Forming a drop-out hole at the rear end of the inner bottom surface of the tank member, which is close to the pachinko machine, and forming a taper portion for guiding the out balls to the drop-out hole on the inner bottom surface, while engaging the outer bottom surface of the tank member. A mating portion is provided, and on the upper surface portion of the tank support member, an engaged portion to which the engaging portion of the tank member can be engaged and disengaged, and an out ball transfer passage extending in the front-back direction of the upper surface portion and protruding forward. And the transfer passage has an inclined bottom surface whose width narrows from the base end to the end so as to align the out balls falling from the drop hole of the tank member and guide them to the front lower side. Out ball tank, wherein the door.

21. An out-ball tank mounting device for supporting an out-ball tank according to item 21, wherein a rail member fixed on the mounting base, and the rail supporting member movably fitted to the rail member. A slide member for supporting the member and a lock member are provided, and a plurality of engaging grooves extending in the longitudinal direction of the rail member are formed in parallel on the upper surface of the rail member, and the rail member is the pachinko machine. Fixed on a mounting base so as to extend in both side directions, the slide member is externally fitted to the rail member so as to be slidable in the longitudinal direction, and the tank support member is slidably attached to the slide member. The tank member is slidably mounted in the front-rear direction of the machine, supports the tank member, and the lock member has a screw portion that is rotatably screwed into a screw hole formed in the tank support member. The threaded portion is provided such that the tip of the threaded portion is fitted into one of a plurality of engaging grooves of the rail member to immovably restrain the tank support member with respect to the rail member. Out ball tank mounting device.

31. An out ball tank mounting device for supporting an out ball tank as set forth in claim 31, comprising: a rail member fixed on the mounting base; and a tank supporting member movably fitted to the rail member. A slide member for supporting the member, a left-right direction locking member, and a front-rear direction locking member are provided, and a plurality of engaging grooves extending in the longitudinal direction of the rail member are formed in parallel on the upper surface of the rail member. , The rail member is fixed on a mounting base so as to extend in both directions of the pachinko machine, the slide member is fitted onto the rail member so as to be slidable in the longitudinal direction thereof, and the tank support member is The slide member is slidably attached to the pachinko machine in the front-rear direction, supports the tank member, and the front-rear direction locking member is provided in the tank support member. A threaded portion that rotatably engages with the threaded hole, the tip of the threaded portion fitting into one of the plurality of engaging grooves of the rail member, and the tank supporting member with respect to the slide member. It is provided so as to be immovably restrained in the front-rear direction, and the left-right direction locking member has a screw portion that is rotatably screwed into a screw hole formed in the tank support member,
The out ball tank attachment device is characterized in that the threaded portion is provided so that the tip of the threaded portion presses the rail member side and restrains the slide member relative to the rail member in the longitudinal direction so that the slide member cannot move. .

[0011]

The out-ball tank is composed of a tank member that stores the out-ball and a tank support member that detachably mounts the tank member. While the engaging portion is provided on the outer bottom surface of the tank member, and the engaged portion on which the engaging portion can be engaged and disengaged is provided on the upper surface portion of the tank supporting member, the tank member can be easily attached to and detached from the tank supporting member. .

The out ball tank installed on the back side of the pachinko machine receives, for example, the out balls discharged from the pachinko machine at the tank portion. The out balls stored in the tank part roll on the taper part on the inner bottom surface of the tank member, and gradually fall from the trailing hole at the rear end, which is close to the pachinko machine, to the tank support member side below.

The out balls fall from the drop hole of the tank portion to the base end side of the transfer passage on the upper surface of the tank support member. In this case, since the transfer passage is formed so as to extend in the front-rear direction of the tank support member and project forward, it is possible to reduce the lateral width of the out-ball tank.

The out balls that have fallen into the transfer passage are aligned and guided to the front lower side of the out ball tank by rolling on an inclined bottom surface whose width narrows from the base end to the end of the transfer passage. By aligning the out balls, it is possible to provide a sensor on the tip side of the transfer path and easily count the out balls that pass through.

The out-ball tank is installed as follows. First, the rail members are fixed on the mounting base of the frame body of the pachinko machine installation island so as to extend in both sides of the pachinko machines arranged side by side. In the upper surface of the rail member, a plurality of grooves extending in the longitudinal direction for adjusting the front and rear position of the prize tank are preliminarily provided in parallel.

When fixing the out ball tank to the rail member on the back side of the pachinko machine, the slide member is slidably fitted on the rail member, and the tank support member is attached to the slide member in the front-back direction of the pachinko machine. Slidably attached to.

The tank member for storing the out balls can be easily mounted by fitting the engaging portion on the outer bottom surface thereof to the engaged portion on the upper surface of the tank supporting member.

When fixing the front and rear positions of the out ball tank, the front and rear direction locking member on the tank support member side is operated,
Lock it. That is, the tank support member is slid forwards and backwards with respect to the slide member, the screw part of the front-rear direction locking member is rotated in one direction at an appropriate position, and the tip of the screw part is engaged with the engaging grooves of the rail member. Fit together. As a result, the tank support member is constrained so that it cannot move in the front-rear direction with respect to the slide member.

When it is desired to shift the front-rear position of the tank support member, the screw portion of the front-rear direction locking member is rotated in the direction opposite to the rotation direction, and the tip of the screw portion is engaged with the engaging groove of the rail member. To release the locked state. The tip of the threaded portion can be fixed at a desired front-rear position depending on which of a plurality of engaging holes provided in the front-rear direction of the rail member is fitted.

Further, when the left and right positions of the out ball tank in both sides of the pachinko machine are fixed, the left and right locking members on the tank supporting member side are operated to bring them into a locked state. That is, a slide member that supports the tank support member is slid on the rail member, the screw portion of the left-right direction locking member is rotated in one direction at an appropriate position, and the tip of the screw portion presses the rail member side. .

Therefore, the tank supporting member and the slide member and the rail member can be fixed by the frictional force through the horizontal locking member, and the slide member and the like are constrained so as not to move in the left and right direction with respect to the rail member. To be done.

When it is desired to shift the left and right positions of the tank support member, the screw portion of the left-right direction locking member is rotated in the direction opposite to the rotation direction so that the tip of the screw portion is disengaged from the rail member side and locked. All you have to do is cancel the state.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Various embodiments of the present invention will be described below with reference to the drawings. In the various embodiments, the same parts are designated by the same reference numerals, and the duplicated description will be omitted. 1 to 6 show a first embodiment of the present invention. As shown in FIG. 1, the out-ball tank 10 includes a tank member 20 that stores the out-balls discharged from the pachinko machine, and a tank support member 30 that removably mounts the tank member and mounts it on a mounting base. It is provided on the mounting base A on the back side of the pachinko machine B.

The out ball tank 10 for receiving out balls is
Receive the balls discharged from the pachinko machine with the tank member 20,
In the transfer passage 33 of the tank support member 30, the balls arranged in a row are introduced into the out-ball counter 80, the number of balls is counted, and the signal is sent to a management computer or the like.

The tank member 20 is formed in a substantially rectangular box shape and has an open top. At the rear end of the inner bottom surface 20a of the tank member 20 which is close to the pachinko machine B, the drop hole 2 is provided.
3 is formed, and similarly, a front taper portion 22 and a side taper portion 21 that guide the out balls into the flow-out hole 23 are formed on the inner bottom surface 20a.

On the outer bottom surface 20b of the tank member 20, 4
One-sided engaging claws (engaging portions) 24, 24 ... On the other hand, as shown in FIG. 2, four pieces of engaging claws 24, 2 of the tank member 20 are provided on the upper surface portion 31 of the tank supporting member 30.
Four elongated holes (engaged portions) 32, 32 ... Are bored in correspondence with No. 4, and the respective engaging claws 24, 2 of the tank member 20.
The tank member 20 is detachably attached to the tank support member 30 by engaging and disengaging 4 ... with respect to the long hole of the tank support member 30.

As shown in FIG. 1 and FIG. 2, an out ball transfer passage 33 extending in the front-rear direction and projecting forward is formed in the upper surface portion 31 of the tank support member 30. The transfer passage 33 has an inclined bottom surface 34 whose width narrows from the base end to the terminal end in order to align the out balls falling from the falling hole 23 of the tank member 20 and guide them to the front lower side. The front end of the transfer passage 33 extends forward of the upper surface portion 31 and forms a protrusion 35. The protruding ball 35 has an out ball counter 8
A mounting claw 39 for mounting 0 is provided.

On both sides of the bottom surface of the tank support member 30,
The slide member 4 is attached to the rail member 70 on the mounting base A.
A pair of mounting portions 36 and 3 slidably fitted through 0
6 is provided. A side wall portion 37 extending upward is provided at the tip edge of the attachment portion 36. A lock support portion 38, which is substantially parallel to the attachment portion 36, is provided between the side surface portion of the tank support member 30 and the side wall portion 37. A screw hole 38a into which the screw portions 51 and 61 of the front-rear direction locking member 50 or the left-right direction locking member 60 are rotatably screwed is formed substantially in the center of the lock support portion 38.

The small hole 3 into which the tip portion 52 of the screw portion 51 of the front-rear direction locking member 50 can be inserted is inserted into the one mounting portion 36.
6a is provided. The other mounting portion 36 is provided with a round hole 36b into which the tip of the screw portion 61 of the left-right direction locking member 60 fits.

As shown in FIGS. 4 and 5, slide members 40, 40 are provided on the pair of mounting portions 36, 36 of the tank support member 30, respectively. The slide member 40 is formed in a substantially U-shape, and a front-rear slide elongated hole 42 extending in the front-rear direction is formed at a substantially center of a ceiling portion 41 that abuts the lock support portion 38. Flange portions 43, 43 extending upward are provided on both side edges of the ceiling portion 41. Further, the slide member 40 has a ceiling portion 41.
It is bent downward from the front and rear ends of the and is further bent inward to form the jaw portion 44.

The slide member 40 is the tank support member 30.
As the mounting portion 36 of the
It is attached to 0 in such a manner as to be slidable in the longitudinal direction (horizontal direction), and the jaw portion 44 is fitted to the side edge 73 of the rail member 70. Further, the tank support member 30 is perpendicular to the length direction of the slide member 40 (front-back direction).
It is slidably mounted on.

The rail member 70 is fixed by screws 74 on the mounting base A of the frame body of the pachinko machine installation island. The rail members 70 are arranged so as to extend in both sides of the pachinko machine B arranged in parallel on the frame body of the pachinko machine installation island. A plurality of engagement grooves 72, 72 extending in the longitudinal direction for adjusting the front-back position of the out ball tank 10 are formed in parallel on the upper surface portion 71 of the rail member 70.

As shown in FIGS. 3 and 4, a lock member 50 is attached to the lock support portion 38 of the one attachment portion 36. More specifically, the screw portion 51 of the front-rear direction locking member 50 is inserted into the front-rear sliding long hole 42 of the slide member 40 and screwed into the screw hole 38a of the lock supporting portion 38. As illustrated, the tip portion 52 of the threaded portion 51 is fitted into one engagement groove 72 extending substantially in the center of the rail member 70, and the tank support member 30 cannot move in the front-rear direction with respect to the slide member 40. Being bound by.

As shown in FIGS. 3 and 5, a left-right direction locking member 60 is attached to the lock support portion 38 of the other attachment portion 36. More specifically, the screw portion 61 of the left-right direction locking member 60 is inserted into the longitudinal slide long hole 42 of the slide member 40 and screwed into the screw hole 38 a of the lock support portion 38. As shown in the drawing, the tip of the screw portion 61 is fitted into the round hole 36b of the mounting portion 36 and presses the slide member 40 side, and the mounting portion 36 and the lock support portion 38 are deformed so that the distance between them is increased. is doing. In this case, the slide member 40 is pressed upward by the left-right locking member 60, and the tank support member 30 is constrained against the rail member 70 so as not to move in the longitudinal direction.

Next, the operation will be described. The out-ball tank 10 includes a tank member 20 that stores the out-ball and a tank support member 30 that detachably mounts the tank member 20, and the out-ball tank 10 is installed on the back side of the pachinko machine B. As follows: First, on the mounting base A of the frame body of the pachinko machine installation island,
The rail member 70 is fixed so as to extend in both directions of the pachinko machines B arranged side by side. A plurality of engagement grooves 72, 72 extending in the longitudinal direction for adjusting the front-rear position of the prize tank 10 are preliminarily provided in parallel on the upper surface 71 of the rail member 70.

Next, the pair of left and right mounting portions 36 of the tank supporting member 30 are placed on the upper surface portion 71 of the rail member 70, and then the mounting portions 36 are held so that the slide member 40 is attached to the rail member 70. It is fitted so that it can slide.
Thereby, the tank support member 30 is slidable in the front-rear direction with respect to the slide member 40, and the tank support member 30 is slidably attached in the longitudinal direction (left-right direction) of the slide member 40. In the tank member 20, by engaging the engaging claws 24, 24 ... Of the outer bottom surface 20b with the elongated holes 32, 32 ... Of the upper surface portion 31 of the tank support member 30,
It can be easily attached to the tank support member 30.

When the front and rear positions of the out ball tank 10 are fixed, the front-rear direction locking member 50 provided on the one mounting portion 36 of the tank supporting member 30 is operated to bring it into a locked state. That is, the tank support member 30 is attached to the slide member 4
The front and rear direction lock member 50 is slid back and forth with respect to 0 and 40, and the screw portion 51 of the front and rear direction locking member 50 is rotated in one direction,
The distal end portion 52 of the screw portion 51 is fitted into one of the plurality of engaging grooves 72, 72 ... Of the rail member 70. As a result, the tank support member 30 is moved to the slide member 40 and the rail member 70.
On the other hand, it is restrained immovably in the front-back direction.

When it is desired to shift the front-rear position of the out-ball tank 10, the screw portion 51 of the front-rear direction locking member 50 is rotated in the direction opposite to the rotation direction so that the tip portion 52 of the screw portion 51 is moved to the rail member 70. The lock state is released by disengaging from the first engaging groove 72. A plurality of engaging holes 7 in which the tip portion 52 of the screw portion 51 is provided in parallel in the front-rear direction of the rail member 70.
Out ball tank 10 depending on which of 2, 72 ...
Can be fixed in a desired front-back position.

When the left and right positions of the out-ball tank 10 in both sides of the pachinko machine B are fixed, the left-right locking member 60 provided on the other mounting portion 36 of the tank supporting member 30 is operated to bring it into a locked state. That is, the slide member 40 supporting the tank support member 30 is slid on the rail member 70, the screw portion 61 of the left-right direction lock member 60 is rotated in one direction at an appropriate position, and the tip of the screw portion 61 is moved. The rail member 70 side is pressed.

As a result, the mounting portion 36 and the lock supporting portion 38 are deformed so as to be separated from each other, and the slide member 4 is deformed.
0 is pressed upward by the left-right locking member 60, the slide member 40 is fixed to the rail member 70 by a frictional force, and the out ball tank 10 is restrained in the longitudinal direction immovable with respect to the rail member 70.

When it is desired to shift the left and right positions of the tank support member 30, the screw portion 61 of the left-right direction locking member 60 is rotated in the direction opposite to the rotation direction so that the tip of the screw portion 61 is moved from the rail member 70 side. It can be released to release the locked state.

As shown in FIG. 6, the out ball tank 10 installed at a predetermined position on the back side of the pachinko machine B is
The out balls discharged from the pachinko machine B are used for the tank member 20.
Receive at. The out balls stored in the tank member 20 are the front taper portion 22 of the inner bottom surface 20a of the tank member 20.
And the side taper portion 21 are rolled, and the tank support member 3 is gradually lowered from the trailing end flow hole 23 which is close to the pachinko machine B.
It falls to the 0 side.

The out balls fall from the drop hole 23 of the tank portion to the base end side of the transfer passage 33 of the upper surface portion 31 of the tank supporting member 30. In this case, since the transfer passage 33 is formed so as to extend in the front-rear direction of the tank support member 30 and project forward, it is possible to reduce the lateral width of the out ball tank 10.

The out balls that have fallen into the transfer passage 33 have an inclined bottom surface 3 whose width narrows from the base end to the end of the transfer passage 33.
Roll out 4 to align and out ball tank 10
Will be led to the lower side in front of. The out balls arranged in a line are
Introduced into the out ball counter 80, the number of balls is counted,
The signal is provided so as to be sent to a management computer or the like. FIGS. 7 to 9 show a second embodiment of the present invention. In the present embodiment, the upper surface portion 71a of the rail member 70a
Are formed so as to incline from one side edge side to the other side edge side, and the rail member 70a is provided on the mounting base A on the back side of the pachinko machine B, and the upper surface portion 71a is located from the rear side of the pachinko machine B to the front side. It is fixed so as to incline downward toward the edge. Further, the tank support member 30 of the prize tank 10a is made to correspond to the inclination of the upper surface portion 71a of the rail member 70a.
The mounting portions 36a and the slide members 40a on both sides of a are also formed to be inclined, and the tank support member 30a is erected substantially perpendicular to the mounting base A.

Accordingly, when the locked state of the front-rear direction locking member 50 is released, the tank supporting member 30a is easily slid in the front-rear direction of the rail member 70a, and the front-rear position is easily adjusted. Further, the height position of the tank member 20 can be adjusted to some extent by moving the upper surface portion 71a of the rail member 70a in which the tank support member 30a is inclined in the front-rear direction.

The out ball tank 1 according to the above embodiment
According to the mounting device of 0, 10a, the tank support member 30,
The pair of mounting portions 36, 36a of 30a are provided with the front-rear direction locking member 50 and the left-right direction locking member 60, respectively, but the mounting portions 36, 36a on both sides are provided with the two front-rear direction locking members 50. Therefore, it can be provided so as to be immovably restrained in the front-rear direction and the left-right direction.

[0047]

According to the out ball tank of the present invention, it is provided with a tank member for storing the out ball and a tank support member for detachably mounting the tank member,
A transfer passage that aligns the out balls received by the tank member,
Since it is formed so as to extend in the front-rear direction of the tank support member and project forward, the lateral width of the out ball tank can be made small, so that both ends of the out ball tank are less likely to interfere with other objects, and the out ball tank is less likely to interfere. It becomes easy to attach the tank to the frame of the pachinko machine installation island, and the attachment cost can be reduced.

According to the out-ball tank mounting device of the present invention, the position of the out-ball tank can be freely adjusted in the front-rear direction, left-right direction, and can be mounted / removed quickly and easily. Can be reduced.

[Brief description of drawings]

FIG. 1 is a plan view showing a first embodiment of an out ball tank and its mounting device according to the present invention.

FIG. 2 is a plan view showing the tank support member of the first embodiment of the out ball tank of the present invention.

FIG. 3 is a front view showing a right half of a cross section of the first embodiment of the out ball tank and its mounting device according to the present invention.

FIG. 4 is a left side view showing the first embodiment of the out ball tank and its mounting device according to the present invention.

FIG. 5 is a right side view showing the first embodiment of the out ball tank and its mounting device according to the present invention.

6 is a sectional view taken along the line 1--4 of FIG.

FIG. 7 is a plan view showing a second embodiment of an out ball tank and its mounting device according to the present invention.

FIG. 8 is a front view showing a second embodiment of the out ball tank and its mounting device according to the present invention.

FIG. 9 is a cross-sectional view of essential parts showing a second embodiment of the out ball tank and its mounting device according to the present invention.

[Explanation of symbols]

10, 10a ... Out ball tank 20 ... Tank member 20a ... inner bottom surface 21 ... Side taper part 22 ... Front taper part 23 ... fall hole 24 ... Engaging claw (engaging portion) 30 ... Tank support member 31 ... Top surface 32 ... Long hole (engaged part) 33 ... Transfer passage 34 ... Inclined bottom 40, 40a ... Sliding member 50 ... Front-rear locking member 51 ... screw part 60 ... Front-back locking member 61 ... screw part 70, 70a ... Rail member 72, 72a ... Engaging groove

Claims (3)

[Claims] 1. An out ball tank, which is provided on a mounting base on the back side of a pachinko machine and receives an out ball discharged from the pachinko machine, wherein a tank member for storing the out ball and the tank member are detachable. And a tank support member that is installed on the mounting base, and a drop hole is formed at a rear end of the inner bottom surface of the tank member, which is close to a pachinko machine, and an out ball is dropped on the inner bottom surface. While forming a tapered portion leading to the hole, an engaging portion is provided on the outer bottom surface of the tank member, and an engaged portion to which the engaging portion of the tank member can be engaged and disengaged, on the upper surface portion of the tank supporting member, A transfer passage for an out ball extending in the front-rear direction of the upper surface portion and projecting forward is formed, and the transfer passage aligns the out balls falling from the drop hole of the tank member and moves downward. An out ball tank having an inclined bottom surface whose width is narrowed from the base end to the end so as to be guided to the side. 2. An out-ball tank mounting device for supporting the out-ball tank according to claim 1, wherein the rail member is fixed on the mounting base, and the rail member is movably fitted to the rail member. A slide member that supports the tank support member and a lock member are provided, and a plurality of engagement grooves that extend in the longitudinal direction of the rail member are formed in parallel on the upper surface of the rail member, and the rail member is configured as described above. Fixed on a mounting base so as to extend in both sides of the pachinko machine, the slide member is externally fitted to the rail member so as to be slidable in the longitudinal direction thereof, and the tank support member with respect to the slide member, A screw that is slidably mounted in the front-rear direction of the pachinko machine, supports the tank member, and the lock member is rotatably screwed into a screw hole formed in the tank support member. The screw portion is provided such that the tip of the screw portion is fitted into one of a plurality of engaging grooves of the rail member to immovably restrain the tank support member with respect to the rail member. An out ball tank installation device. 3. An out ball tank mounting device for supporting the out ball tank according to claim 1, wherein the rail member is fixed on the mounting base, and the rail member is movably fitted to the rail member. A slide member for supporting the tank supporting member, a left-right direction locking member, and a front-back direction locking member are provided, and a plurality of engaging grooves extending in the longitudinal direction of the rail member are formed in parallel on the upper surface of the rail member. The rail member is fixed on the mounting base so as to extend in both sides of the pachinko machine, and the slide member is externally fitted to the rail member so as to be slidable in the longitudinal direction thereof. A member is attached to the slide member so as to be slidable in the front-rear direction of the pachinko machine, supports the tank member, and the front-rear direction locking member is provided in the tank support member. Has a threaded portion that is rotatably engaged with the threaded hole, and the tip of the threaded portion fits into one of the plurality of engaging grooves of the rail member to attach the tank support member to the rail member. On the other hand, the left-right direction locking member is provided so as to be immovably restrained in the front-rear direction, and the left-right direction locking member has a screw portion that is rotatably screwed into a screw hole formed in the tank supporting member, and the screw portion has a tip end thereof. Is provided so as to press the rail member side and constrain the slide member with respect to the rail member such that the slide member cannot move in the longitudinal direction thereof.