JP2001347006A - Game ball tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the material recycle in a game ball tank. SOLUTION: In this game ball tank 10, the mounting of a switch unit 70 is completed only by preliminarily inserting and retaining a switch 25 in a switch case 72 and inserting the switch case 72 to a guide 77 after retaining a displacement plate 71 by a bearing 73. Therefore, the switch 25 can be easily mounted without any trouble. Since a metallic part such as small screw or the like is not required, the work of separating the metallic part is not required in the material recycle. Further, since the mounting of the displacement plate 71 is completed by mounting the switch case 72 on a body 12, the working efficiency is high.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of gaming machines, and more particularly, to a game ball tank for storing game balls for prize balls and the like.

[0002]

2. Description of the Related Art Gaming machines (pachinko machines) which pay out game balls (pachinko balls) as prize balls or discharge them as rental balls include gaming balls for prize balls and for renting balls. There is a game ball tank to store.

A switch for detecting the presence or absence of a game ball in the game ball tank (when a shortage of the game ball is detected by this switch, the replenishment equipment of the game store sends the game ball to the game ball tank). Is often referred to as a replenishment switch since the replenishment is supplied (for example, Japanese Utility Model Laid-Open No. 5-33771). A replenishment switch may be provided on a tank rail for guiding game balls flowing out of the game ball tank (for example, Japanese Utility Model Laid-Open No. 6-81577).
No.).

[0004]

A conventional supply switch is mounted on a game ball tank (see Japanese Utility Model Laid-Open No. 5-33).
No. 771) Can it be mounted on a mechanical panel?
Although there is a difference between the two types, there is a difference, but in any case, it is time-consuming to mount because the screws are made of metal, and since the screws are made of metal, plastic products (for example, game ball tanks, Tank rails, mechanical panels, etc.).

[0005]

Means for Solving the Problems and Effects of the Invention
The described game ball tank is a game ball tank comprising a displacement plate that is displaced downward when receiving a load of a game ball and is displaced upward without the load, and a switch that is turned on and off by the elevation displacement of the displacement plate. A switch provided at an upper end portion, into which the switch is inserted, and a switch locking member that elastically deforms and allows the switch inserted from the opening to pass therethrough and then elastically returns to lock the switch. The holding portion is separate from the main body portion of the game ball tank, and an insertion portion through which the switch holding portion is inserted is provided in the main body portion of the game ball tank, and once the switch holding portion is inserted through the insertion portion, the elasticity is once increased. When the elastic member returns to its original state, the elastic member returns to its original state, and the elastic member returns to the engaged state. Regulating means for restricting movement of the switch retaining portion in the insertion direction when the retaining portion locking member is in the locked state, wherein the displacement plate is disposed in a posture for closing the opening. It is characterized by having done.

In this game ball tank, when the switch is inserted through an opening provided at the upper end of the switch holding portion, the switch locking member is elastically deformed, passes through the switch locking member, and is elastically restored to lock the switch. Therefore, the switch is held by the switch holding unit. When the switch holding part holding the switch is inserted into the insertion part provided in the main part of the game ball tank, the holding part locking member is elastically deformed once and then elastically returns to the locked state when it is elastically restored. To prevent the switch holding section from being detached from the main body. The restricting means restricts the movement of the switch holding portion in the insertion direction when the holding portion locking member is locked. That is, the movement of the switch holding member is restricted by the holding portion locking member and the restricting means, and the switch holding member is attached to the main body.

[0007] The displacement plate is arranged in a position to close the opening of the switch holding portion attached to the main body. However,
Closing the opening does not mean sealing, but does not mean that the game ball does not enter the switch through the opening. Insert the switch into the switch holder to hold it,
Since the switch can be attached to the main body simply by inserting the switch holding portion into the insertion portion, the switch can be attached easily and without much trouble. Further, since metal parts such as screws are not required, there is no need to separate metal parts during material recycling.

[0008] The displacement plate may be attached to the switch holding portion as described in claim 2 or may be held jointly by the switch holding portion and the body portion according to claim 3. May be attached to the main body portion as described above. However, according to the structure of the second aspect, since the mounting of the displacement plate is completed only by attaching the switch holding portion to the main body, work efficiency is improved. An assembly procedure such as closing the groove with the switch holding portion after passing the axis of the displacement plate through the groove of the above can be adopted, so that a large force is not required for mounting the displacement plate. Each has unique effects, such as a simple structure.

A game ball tank according to a fourth aspect of the present invention is characterized in that the game ball tank is displaced downward when a load of the game ball is received and displaced upward without the load, and is turned on by the vertical displacement of the displacement plate.
In a game ball tank having a switch that is turned off,
A switch holding member provided at an upper end portion and having an opening through which the switch is inserted, and a switch locking member which elastically deforms and allows the switch inserted through the opening to pass therethrough and elastically returns to lock the switch; A part is integrally formed with a main body portion of the game ball tank, and the displacement plate is arranged in a posture for closing the opening.

In this game ball tank, when the switch is inserted through an opening provided at the upper end of the switch holding portion, the switch locking member is elastically deformed and passes therethrough, then returns to elastic and locks the switch. Therefore, the switch is held by the switch holding unit. Since the switch holding portion is formed integrally with the main body of the game ball tank, the switch is attached to the game ball tank only by this operation. Therefore, the mounting of the switch is simple and requires no effort. Further, since metal parts such as screws are not required, there is no need to separate metal parts during material recycling.

[0011] The displacement plate is disposed in a position to close an opening of a switch holding portion attached to the main body. However,
Closing the opening does not mean sealing, but does not mean that the game ball does not enter the switch through the opening. If the displacement plate is configured to be attached to the main body portion as described in claim 5, the structure of the switch holding portion can be simplified.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to some embodiments of the present invention.

[0013]

[Embodiment 1] As shown in FIGS.
The main body 12 is a plastic injection-molded product and comprises a box-shaped storage section 13 and a tank rail 15 connected to the bottom thereof.

The tank rail 15 is a groove along the longitudinal direction of the storage section 13, and a downstream portion 15 a protrudes from the storage section 13. At the upstream side of the tank rail 15, a mounting hole 16 corresponding to the insertion portion is provided. The width of the mounting hole 16 is narrower than the groove portion continuous with the tank rail 15, and the upper edge 16 a of the step is inclined in the same direction as the tank rail 15. A rectangular notch 16b is provided below the mounting hole 16.

The bottom of the storage section 13 is formed by short slopes 17 a and 17 b adjacent to the mounting hole 16 and long slopes 18 a and 18 b along the tank rail 15. Short slope 17
a, 17b and the long slopes 18a, 18b are both inclined opposite to the tank rail 15, but the short slopes 17a, 17b
Has a gentler slope, and a step is formed between the short slopes 17a, 17b and the long slopes 18a, 18b.

The downstream portion 15 a of the tank rail 15 and about ／ of the inside of the storage section 13 are covered by a ceiling member 19. The ceiling member 19 includes an outer portion 19a that covers the downstream portion 15a, an inner portion 19b that covers a portion inside the storage portion 13, and a wall portion 19c that is a boundary between both portions and becomes a part of the peripheral wall 13a of the storage portion 13. ing. The fitting body 1 is provided on the wall 19c.
The ceiling member 19 and the main body 12 are connected by fitting these fittings 19d to fitting receivers 13b provided inside the peripheral wall 13a. The outer portion 19a prevents the game balls from overflowing from the tank rail 15, and the inner portion 19b prevents the pressure of the game balls in the storage portion 13 from reaching the tank rails 15. The insertion members 21a and 21b attached to the external portion 19a connect the outer portion 19a and the tank rail 15, and the stopper 22 provided at the tip portion is pushed down (the position shown).
The outflow of the game ball from the tank rail 15 is prevented, and the outflow is allowed when raised.

A switch unit 27 including a displacement plate 24, a switch 25, and a switch case 26 is mounted in the mounting hole 16 as shown in FIGS. Displacement plate 24
The switch case 26 is a plastic injection molded product, and the switch case 26 corresponds to a switch holding unit.

The displacement plate 24 includes a pressure receiving plate 24a, a C-shaped bearing 24b, and a pressing portion 24c. Switch 25
Is provided with a pin 25a protruded by a built-in spring, and the position changes between when the pin 25a is protruded and when the pin 25a is pressed. In the case of the present embodiment, when the pin 25a protrudes,
Turns off when is pressed. Since the switch 25 employs a known switch, illustration and description of the detailed structure are omitted.

The switch case 26 has an opening 28 at the upper end.
Is provided in a box shape. The outer shape of the outer edge 28 a of the opening 28 is substantially the same as the upper edge 16 a of the mounting hole 16, and the outer shape of the lower fitting portion 28 b matches the inner peripheral shape of the mounting hole 16. A cut is provided in the side surface of the switch case 26, and an elastic piece 29 is provided therein. Elastic piece 29
An outer protrusion 29a and an inner protrusion 29b are provided at the upper end of the. The elastic piece 29 corresponds to a holding portion locking member in that it has an outer protrusion 29a, and corresponds to a switch locking member in that it has an inner protrusion 29b.

The swing shaft 3 is provided inside the switch case 26.
0 is provided. The outer diameter of the swing shaft 30 is the displacement plate 2
4 is slightly smaller than the inner diameter of the bearing 24b. However,
Unless the bearing 24b is elastically deformed outward, it cannot be fitted onto the swing shaft 30 or removed from the swing shaft. When the bearing 24b is externally fitted, the swing shaft 3
The displacement plate 24 can be oscillated about 0.

Further, ribs 31 and 32 for positioning the switch 25 are provided on the inner surface of the switch case 26, and a protrusion 32a is provided on the head of one of the ribs 32. The assembly of the switch unit 27 is performed as follows.

First, the switch 25 is connected to the switch case 26.
When the switch 25 is inserted through the opening 28 of the
The elastic piece 29 is elastically deformed outwardly in contact with the inner protrusion 29b of the second member and passes therethrough. As shown in FIG. 4, when the switch 25 reaches the bottom of the switch case 26, the elastic piece 29 is elastically restored to lock the inner protrusion 29b on the upper surface of the switch 25.
As a result, the switch 25 is fixed in the switch case 26.

Next, when the displacement plate 24 is inserted through the opening 28 of the switch case 26 and the bearing 24b is fitted on the swing shaft 30, the switch unit 27 is completed as shown in FIG. In a state where the bearing 24b is fitted on the swing shaft 30, the pressing portion 24c rides on the pin 25a of the switch 25, but the pin 25a is not pushed by the load of the displacement plate 24 and maintains a position protruding outside.

The switch unit 27 thus assembled is inserted from the storage section 13 into the mounting hole 16. At this time, the elastic piece 29 of the switch case 26 is elastically deformed inward because the outer projection 29a is pushed by the inner periphery of the mounting hole 16. When the outer projection 29a passes through the mounting hole 16 and reaches the notch 16b, the elastic piece 29 is elastically restored, and the upper end thereof is locked to the inner periphery of the notch 16b. This prevents the removal of the switch unit 27. Also, the elastic piece 2
When the upper end of the switch 9 is locked, the outer edge 28a of the switch case 26 is in contact with the upper edge 16a of the mounting hole 16, so that the switch unit 27 cannot be pushed further into the mounting hole 16. That is, the switch unit 27 was attached to the main body 12 as shown in FIGS. In addition, the upper edge 16a and the outer edge 28a cooperate to constitute a regulating means.

In this state, the switch unit 27
The lateral movement is restricted by the mounting hole 16 and the upper edge 16
Since the lowering is prevented by a, and the raising is prevented by the engagement of the notch 16b and the elastic piece 29, the relative position with respect to the main body 12 cannot be changed. In addition, the displacement plate 24 closes the opening 28 (there is a small gap between itself and the opening 28, but the game ball does not enter).

However, the displacement plate 24 can swing up and down around the swing shaft 30. Therefore, the game ball tank 10
There is a game ball in the storage part 13 of the
, The displacement plate 24 swings downward (displaces downward), and the pressing portion 24 c pushes the pin 25 a of the switch 25. In this case, the switch 25 is turned off. On the other hand, when the storage portion 13 is empty and the load of the game ball is not applied to the displacement plate 24, the displacement plate 24
The switch 25 is pushed up by (a) (up displacement), and the switch 25 is turned on. The presence / absence of a game ball in the game ball tank 10 can be determined by using the on / off change of the switch 25.

In the game ball tank 10, when the switch 25 is inserted through the opening 28 provided at the upper end of the switch case 26, the elastic piece 29 is elastically deformed, passes through the elastic piece 29, and returns elastically to the inner projection. 29b, the switch 25 is locked.
6 is held. When the switch case 26 holding the switch 25 is inserted into the mounting hole 16 provided in the main body 12 of the game ball tank 10, the elastic piece 29 is elastically deformed once and then elastically returns. The switch case 26 is locked to prevent the switch case 26 from being detached from the main body 12. Also, the outer edge 28a of the switch case 26 hits the upper edge 16a of the mounting hole 16, and the switch case 26
Is restricted in the insertion direction. That is, the movement of the switch case 26 is restricted by the engagement of the elastic pieces 29 and the contact between the upper edge 16a and the outer edge 28a, and the switch case 26 is attached to the main body 12.

The displacement plate 24 closes the opening 28 of the switch case 26 attached to the main body 12 so that the game ball does not enter the switch 25 through the opening 28. Switch 2
5 is inserted into and held in the switch case 26, and the switch case 26 is simply inserted through the mounting hole 16.
2, the switch 25 can be mounted easily and without much trouble. Further, since metal parts such as screws are not required, there is no need to separate metal parts during material recycling.

Further, the displacement plate 24 is also connected to the switch case 26.
The switch unit 27 attached to the main body 12 is assembled to the main body 12, so that the mounting of the displacement plate 24 is completed only by attaching the switch unit 27 to the main body 12, so that the work efficiency is high.

[0030]

Embodiment 2 This is an example in which the switch case is inserted in the horizontal direction. The structure of the game ball tank 10 is the same as that of the first embodiment except for the mounting portion of the switch case. The switch 25 is the same as that of the first embodiment. The same parts as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and the description is omitted.

The switch unit 70 of this embodiment includes a displacement plate 71, a switch 25, and a switch case 72 that houses the switch 25. The displacement plate 71 and the switch case 72 are plastic injection molded products, and the switch case 72 corresponds to a switch holding unit.

The displacement plate 71 includes a pressure receiving plate 71a, a swing shaft 71
b and a pressing portion 71c. Side 1 of mounting hole 16
6c and 16d are provided with bearings 73,
Reference numeral 1 denotes the swing shaft 71b inserted through the bearing 73. The switch case 72 is box-shaped, and has a pair of elastic pieces 74 inside.
Is erected. The inner ends of the elastic pieces 74 are provided with inner projections 74b facing each other.
The switch 25 is held by locking the upper surface of the switch 25 at b. This elastic piece 74 corresponds to a switch locking member.

A substantially rectangular opening 75 is formed at the upper end of the switch case 72, and two sides thereof form a projecting portion 76 which projects laterally. At one end of the upper edge of the overhang portion 76, an upper projection 76a having a surface substantially perpendicular to the upper edge and a gentle slope is provided.

On the other hand, the body 12 is provided with a pair of angled guides 77 extending from the edge of the mounting hole 16, and extends between the upper surface of the guide 77 and the edge of the mounting hole 16. The part 76 is inserted. The upper projection 76a is locked on the side surface 16c of the mounting hole 16, and the other end of the overhang portion 76 is in contact with the other side surface 16d of the mounting hole 16. Thereby, the switch case 72 is attached to the main body 12,
Also, the upper edge of the switch case 72 has a bearing 7 for the displacement plate 71.
3 is prevented from falling off. Guide 77 is inserted through
The upper protrusion 76a corresponds to the holding portion locking member, and the other side surface 16d of the mounting hole 16 corresponds to the restricting means.

In assembling the switch unit 70 of this embodiment, first, the switch 2 is opened through the opening 75 of the switch case 72.
Insert 5. The switch 25 has an inner protrusion 74 of the elastic piece 74.
b, the elastic piece 74 is elastically deformed outward and passes. When the switch 25 reaches the bottom of the switch case 72, the elastic piece 74 is elastically restored to lock the inner protrusion 74b on the upper surface of the switch 25. As a result, the switch 25 is fixed in the switch case 72 (see FIGS. 10 and 12).

Next, the swing ball 71b of the displacement plate 71 is inserted through the bearing 73 of the main body 12 with the game ball tank 10 turned upside down (see FIG. 13). Since the game ball tank 10 is turned upside down, the swing shaft 72 is placed on the bearing 73, so that the displacement plate 71 does not fall from the bearing 73.

Then, the projecting portion 76 of the switch case 72, which is also turned upside down, is inserted into the guide 77 and pushed in (see FIGS. 9 and 14). Then, the upper protrusion 76
a contacts the edge of the mounting hole 16, but the upper projection 76a passes through the side surface and the overhanging portion 76 due to elastic deformation. When the upper protrusion 76a has passed, the side surface and the overhang portion 76
Of the mounting hole 16a.
(See FIG. 9). At this time, the overhang portion 76
Is in contact with the other side surface of the mounting hole 16. As a result, the switch case 72 is attached to the main body 12.
Further, since the opening of the bearing 73 is closed at the upper edge of the switch case 72, the displacement plate 71 is prevented from falling off from the bearing 73. When the game ball tank 10 is turned upside down, the pressing portion 71c of the displacement plate 71 rides on the pin 25a of the switch 25. Note that the pin 25a is not pushed in by the load of the displacement plate 71 and maintains a position protruding outside. Further, the displacement plate 71 closes the opening 28 (there is a small gap between itself and the opening 28, but the game ball does not enter).

However, the displacement plate 71 can swing up and down around the swing shaft 71b. Therefore, the game ball tank 1
There is a game ball in the storage unit 13 of the zero and the load is
When the switch 25 is engaged, the displacement plate 71 swings downward (displaces downward) and the pressing portion 71c pushes the pin 25a of the switch 25. In this case, the switch 25 is turned off. On the other hand, when the storage portion 13 is empty and the load of the game ball is not exerted on the displacement plate 71, the displacement plate 71
5a, the switch 25
Turns on. The presence / absence of a game ball in the game ball tank 10 can be determined by using the on / off change of the switch 25.

In this game ball tank 10, the switch 25 is inserted and held in the switch case 72 in advance, the displacement plate 71 is held in the bearing 73, and then the switch case 72 is inserted through the guide 77. Since the mounting of the unit 70 is completed, the mounting of the switch 25 is simple and requires no effort. Further, since metal parts such as screws are not required, there is no need to separate metal parts during material recycling.

Moreover, since the mounting of the displacement plate 71 is completed by attaching the switch case 72 to the main body 12, work efficiency is high.

[0041]

Embodiment 3 This embodiment is an example in which the switch holding portion is integrally formed with the main body of the game ball tank. The switch 25 is the same as in the first and second embodiments. As shown in FIG. 15, the wall 130 of the game ball tank 100 is substantially box-shaped,
The inside is a storage unit 110. The wall body 130 is provided with an outlet 140 with one corner cut out. Also, a gutter 210 for guiding game balls flowing out of the exit 140 is attached.

A bottom surface 120 is provided laterally inside the wall body 130, and a groove 150 is arranged along the wall surface on the near side, and
A step surface 160 is interposed between the groove 0 and the groove 150. One end of the groove 150 is closed by a wall and the other end is an outlet 140. The bottom surface 120 is provided with a slope (arrow B) in which the groove 150 side becomes lower and a slope (arrow C) in which the outlet 140 side becomes lower. Therefore, if there are game balls on the bottom surface 120, they flow down into the groove 150.

The opposite slope 170 is connected to the outlet 140 side of the bottom surface 120. Opposite slope 170 is bottom surface 12
It is arranged above the extension surface of 0, and makes the angle with the bottom surface 120 an obtuse angle. On the exit 140 side of the facing slope 170, a triangular entrance surface 180 is arranged. Entrance surface 180
Is a slope from the facing slope 170 toward the groove 150 (arrow E).
Is given.

A box-shaped recess 80 is provided in the bottom surface 120. The recess 80 has two steps, and a protruding swing shaft 81 is provided on each side surface of the upper step. The elastic piece 8 is cut into the lower side surface of the recess 80 by cutting.
2 are formed. At the end of the elastic piece 82, there are provided inner projections 82b facing each other.
2b, the upper surface of the switch 25 is locked,
Holding. This elastic piece 82 corresponds to a switch locking member.

Above the switch 25, a pressure receiving plate 84a, C
Plate 84 having a U-shaped bearing 84b and a pressing portion 84c
Is arranged. The displacement plate 84 has its bearing 84b fitted on the swing shaft 81, and is capable of swinging up and down around the swing shaft 81. Although the pressing portion 84c of the displacement plate 84 rides on the pin 25a of the switch 25, the pin 25a is not pushed by the load of the displacement plate 84 alone and maintains a position protruding outside. In addition, the displacement plate 84 closes the opening 86 of the recess 80 (there is some gap between the opening 86 and the opening 86, but no game ball enters).

However, the displacement plate 84 can swing up and down around the swing shaft 81. Therefore, the game ball tank 10
When there is a game ball in the zero storage unit 110 and the load is applied to the displacement plate 84, the displacement plate 84 swings downward (displaces downward) and the pressing unit 84c pushes the pin 25a of the switch 25. . In this case, the switch 25 is turned off. On the other hand, when the storage portion is empty and the load of the game ball is not applied to the displacement plate 84, the displacement plate 84
The switch 25 is pushed up by (a) (up displacement), and the switch 25 is turned on. The presence / absence of a game ball in the game ball tank 100 can be determined by using the on / off change of the switch 25.

In this game ball tank 100, the switch 25 is inserted into the recess 80 and held (see FIG. 17).
The switch unit 9 can be mounted simply by fitting the bearing 84b of the displacement plate 84 to the swing shaft 81 and attaching the displacement plate 84 thereto.
Since 0 is completed (see FIG. 18), the mounting of the switch 25 is simple and requires no effort. Further, since metal parts such as screws are not required, there is no need to separate metal parts during material recycling.

Although the embodiments of the present invention have been described with reference to the three examples, the present invention is not limited to these examples. For example, the number of tank rails arranged is two (Examples 1 and 2) or one (Example 3), but may be three or more.

[Brief description of the drawings]

FIG. 1 is a plan view of a main body portion of a game ball tank according to a first embodiment.

FIG. 2 is a front view of a state where the switch unit is disassembled in the game ball tank according to the first embodiment.

FIG. 3 is a sectional view of the state shown in FIG. 2;

FIG. 4 is a cross-sectional view illustrating a state where the switch is held in a switch case in the first embodiment.

FIG. 5 is a sectional view showing a state where the switch unit is completed in the first embodiment.

FIG. 6 is a sectional view showing a state where the switch unit is mounted in the first embodiment.

FIG. 7 is a plan view of a completed state of the game ball tank according to the first embodiment.

FIG. 8 is an overall view of a game ball tank according to the second embodiment.

FIG. 9 is a cross-sectional view illustrating an attached state of the switch unit according to the second embodiment, and FIG. 9B is an enlarged view of a part D in FIG.

FIG. 10 is a perspective sectional view of a state before a switch case is attached in the second embodiment.

FIG. 11 is a perspective sectional view showing a state where a switch unit is disassembled in the game ball tank according to the second embodiment.

FIG. 12 is a perspective sectional view of a state where the switch is held in the switch case in the second embodiment.

FIG. 13 is a perspective sectional view showing a state where a switch is held in a switch case and a displacement plate is attached to a main body in the second embodiment.

FIG. 14 is a perspective sectional view showing a state where the switch unit is mounted in the second embodiment.

FIG. 15 is an overall view of a game ball tank according to the third embodiment.

FIG. 16 is a perspective sectional view showing a state where a switch unit is disassembled in the game ball tank according to the third embodiment.

FIG. 17 is a perspective sectional view showing a state in which a switch is attached to the game ball tank according to the third embodiment.

FIG. 18 is a perspective sectional view showing a state where a switch unit is completed in the game ball tank according to the third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Game ball tank 12 Main body 16 Mounting hole (insertion part) 16a Upper edge 16b Notch 16c Side surface (holding part locking member) 16d Side surface (restriction means) 24 Displacement plate 25 Switch 26 Switch case (switch holding part) 27 Switch unit 28 Opening 28a Outer edge (restriction means) 29 Elastic piece (switch locking member, holding portion locking member) 29a Outer projection (holding portion locking member) 29b Inner projection (switch locking member) 30 Swinging shaft 70 Switch unit 71 Displacement plate 72 Switch case (switch holding portion) 72 Oscillating shaft 73 Bearing 74 Elastic piece (switch locking member) 74b Inner projection 75 Opening 76a Upper projection (holding portion locking member) 76 Overhang portion 77 Guide (insertion portion) Reference Signs List 80 recess (switch holding portion) 81 swing shaft 82 elastic piece (switch locking member) 82b inner projection 84 displacement 86 opening 90 switch unit 100 game ball tank

Claims (5)

[Claims] 1. A game ball tank comprising: a displacement plate that is displaced downward when receiving a load of a game ball and rises and displaces when there is no load; and a switch that is turned on and off by the vertical displacement of the displacement plate. And a switch retaining member having an opening provided in the portion for inserting the switch, and a switch locking member for elastically deforming and passing the switch inserted from the opening and returning to elastically to lock the switch. Is separate from the main body portion of the game ball tank, an insertion portion for inserting the switch holding portion is provided in the main body portion of the game ball tank, and once the switch holding portion is inserted through the insertion portion, the elastic deformation once occurs. Then, the holding portion locking member for preventing the switch holding portion from being detached from the main body portion and returning to the locked state when the elastic recovery is performed, releases the switch portion from the main body portion or the switch. And a restricting means for restricting movement of the switch holding portion in the insertion direction when the holding portion locking member is in the locked state, and disposing the displacement plate in a posture for closing the opening. A game ball tank characterized by the following. 2. The game ball tank according to claim 1, wherein the displacement plate is attached to the switch holding portion. 3. The game ball tank according to claim 1, wherein the switch holding portion and the body portion hold the displacement plate together. 4. A game ball tank comprising: a displacement plate which is displaced downward when receiving a load of a game ball and rises and displaces when there is no load; and a switch which is turned on and off by said displacement of said displacement plate. And a switch retaining member having an opening provided in the portion for inserting the switch, and a switch locking member for elastically deforming and passing the switch inserted from the opening and returning to elastically to lock the switch. And a main body portion of the game ball tank, and the displacement plate is disposed in a position to close the opening. 5. The game ball tank according to claim 1, wherein the displacement plate is attached to the main body.