JP2915203B2 - Attachment structure of ball cut detection device in prize ball tank of pachinko machine, switch attachment structure of the device, and detection plate attachment structure of the device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a prize ball tank arranged behind a pachinko machine for storing a prize ball paid out each time a prize ball is generated. The present invention relates to a mounting structure of a detecting device for detection, a switch mounting structure of the device, and a detection plate supporting structure of the device.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 8 and 9, for example, a detecting plate 103 which faces a rectangular opening 102 formed on a bottom surface 101 of a prize ball tank 100 from below, and a rear end of the detecting plate 103 is pinned. Mounting member 1 rotatably supported at 104 and fixed to the back side of the bottom surface 101 of the prize ball tank 100
There is known a deficiency ball detection device for the prize ball tank 100, which includes a switch 05 and a switch 106 which is activated by the rotation of the detection plate 103.

By the way, in such a conventional ball cut detecting device, a plurality of cylindrical fitting portions 108 having a screw insertion hole 107 are provided in a mounting member 105, and each of the cylindrical fitting portions 108 is provided.
Are fitted into a plurality of projections 109 projecting from the back side of the bottom surface 101 of the prize ball tank 100, and screws 110
Was screwed into the screw hole 111 of the projection 109 from the screw insertion hole 107 and fastened to attach it to the premium ball tank 100.

[0004] The switch 106 is attached to the mounting member 1.
05 is provided with a flat U-shaped concave portion 112 opened on the side surface,
With the switch 106 positioned in the recess 112,
Was to be mounted.

Further, the detection plate 103 and the mounting member 10
5 is obtained by inserting the pin 104 having the retaining head 116 into the shaft insertion holes 114 and 115 formed respectively, and fitting the E-ring 117 to the protruding end of the pin 104 to perform the retaining. The detection plate 103 is rotatably supported on the mounting member 105.

[0006]

As described above, in the mounting structure of the conventional ball breaking detecting device, at least two portions of the mounting member 105 must be screwed to the premium ball tank 100, and the screwing operation is performed. There was a problem that it was troublesome and time-consuming.

[0007] In a conventional ball cut detector,
The switch 106 needs to be screwed to the mounting member 105, and the assembling work is complicated, such as requiring the work of fitting the retaining ring E to the pin 104 that supports the detection plate 103 to the mounting member 105. Therefore, there are various problems that the cost increases. SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to make it possible to easily fix a ball-out detecting device to a prize ball tank, Attachment structure of a ball-break detection device in a prize ball tank of a pachinko machine so that each component such as a switch or a detection plate constituting a detection device can be easily assembled, a switch attachment structure of the device, and a detection plate shaft of the device It is intended to provide a support structure.

[0008]

In order to achieve the above-mentioned object, according to the present invention, there is provided a structure for detecting a broken ball in a prize ball tank of a pachinko machine. A detection plate to be faced, a mounting member rotatably supporting the rear end of the detection plate and fixed to the underside of the bottom surface of the prize ball tank, and a switch operated by rotation of the detection plate. A mounting structure for a ball cut detection device, wherein a U-shaped locking frame is provided on the back side of the bottom surface of the prize ball tank so as to straddle near one side in a short direction of the opening, and a short side of the opening in the short direction of the opening is provided. A protrusion having a screw hole at the center is protruded near the other side, and a lateral holding groove opening at the front surface is formed at the front end of the mounting member of the ball cut detection device, and a screw insertion hole is formed at the rear end. Forming a cylindrical fitting portion having Insert from the side of the locking frame to face the opening, insert the holding groove of the mounting member into the horizontal portion of the locking frame, fit the cylindrical fitting portion of the mounting member to the projection, and screw Is screwed into the screw hole from the screw insertion hole and tightened, whereby the ball-break detecting device is attached to the prize ball tank.

Further, in the switch mounting structure of the ball cut detecting device, a flat U-shaped concave portion which is opened on the side surface is provided in the mounting member, and a projection is protrudingly provided on the inner wall surface of the concave portion, and the switch is inserted into the concave portion. A stopper that is positioned and inserted into a hole provided in the switch so that the switch is held in the recess, and a stopper that abuts the side of the switch with the mounting member fixed to the underside of the bottom surface of the premium ball tank. Is provided.

Further, in the detecting plate mounting structure of the ball cut detecting device, a shaft hole and a shaft insertion hole are formed in each of the detecting plate and the mounting member, and a plate stopper head is provided in each of the shaft hole and the shaft insertion hole. The detection plate is rotatably supported on the mounting member by inserting a pin that is not inserted, while a protruding piece facing the end of the pin with the mounting member fixed to the back side of the bottom surface of the premium ball tank. It was established.

[0011]

The ball cut detecting device inserts a holding groove of a mounting member into a horizontal portion of the locking frame while inserting a detecting plate from a side of the locking frame so as to face the opening of the premium ball tank from below, Thereafter, a screw is screwed into the screw hole of the projection from the screw insertion hole of the cylindrical fitting portion, and tightened. Thus, the ball-break detecting device can be fixed to the premium ball tank with one screw.

[0012] In the switch of the ball cut detecting device, a hole provided in the switch is fitted into a protrusion of a concave portion of the mounting member to be positioned in the concave portion, and a side surface thereof is provided on the back side of the bottom surface of the premium ball tank. Contact the piece. by this,
The switch can be held on the mounting member without screwing.

Further, the protruding piece provided on the back side of the bottom surface of the prize ball tank functions to prevent a pin for rotatably supporting the detection plate with respect to the mounting member of the ball cutout detection device. As a result, a pin without a retaining head can be used, and it is not necessary to perform retaining by an E-ring.

[0014]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a partial rear view of a pachinko machine to which the present invention is applied. In the figure, reference numeral 1 denotes a mechanism plate which is openably and closably mounted on the back of a game board, and 2 denotes an upper portion of the mechanism plate 1 which is attached thereto. The prize ball tank 3 is provided below the prize ball tank 2 and is a prize ball lead-out gutter for guiding the prize ball to the prize ball dispensing device 4 while aligning the prize balls.

As shown in FIG. 2, the prize ball tank 2 is formed in a substantially rectangular box shape having an open upper surface, and has a rear wall 5 in contact with the mechanism plate 1 and a front wall 6 opposed to the rear wall 5.
And a left side wall 7, a right side wall 8, and a bottom surface 9. A rectangular outlet 10 corresponding to the upstream end of the prize ball outlet 3 at one end of the bottom surface 9 and substantially at the center of the front and rear width.
Is established. Also, the rear opening edge 10a of the outlet 10
The rear wall 5 is bulged inward between the rear wall 5 and the rear wall 5 to form a ball-break portion 11. The bottom wall 9 is composed of three inclined surfaces having different inclination angles, and the inclined surface 9a on the rear wall 5 and the inclined surface 9c on the front wall 6 are respectively inclined downward inward, and the central inclined surface 9b. Is inclined downward to the outlet 10 side. Further, a rectangular opening 12 along the longitudinal direction of the prize ball tank 2 is provided between the outlet 10 and the front wall 6 toward the front wall 6, and a ball break detector 13 is mounted on the opening 12.

As shown in FIGS. 3 and 4, the ball-break detecting device 13 has a detecting plate 14 facing the opening 12 of the premium ball tank 2 from below, and a rear end of the detecting plate 14 is rotatable. The mounting member 15 is fixed to the rear side of the bottom surface of the premium ball tank 2 by being pivotally supported by the prize ball tank 2, and the switches 16 and 16 are activated by the rotation of the detection plate 14.

The detection plate 14 is formed in a shape substantially the same size as the opening 12 and forms a part of the bottom surface 9.
The upper surface is formed as an inclined surface toward the outlet 10 so as to coincide with the inclined surface 9C of the bottom surface 9. In FIG. 2, a shaft cylinder 18 having a shaft insertion hole 17 is formed on the lower surface of the rear end of the detection plate 14 located on the right edge of the opening 12. Is
Stopper pieces 19 are provided integrally with the upper surface and the lower surface of the bottom surface 9 so as to protrude from the lower surface 9 and regulate the rotation range of the detection plate 14.

As shown in FIG. 4, the mounting member 15 is formed to have substantially the same lateral width as the detection plate 14, and has a bearing portion 20 having an L-shaped cross section that allows the shaft tube portion 18 of the detection plate 14 to be viewed from above.
And a vertical front plate portion 21 are provided with flat U-shaped concave portions 22, 22 which are opened on both front and rear sides.
The recesses 22, 22 serve as mounting portions for the switches 16, 16, and two projections 23, 23 projecting from the inner ends of the recesses 22, 22 have holes provided in the switches 16, 16. 24, 24 are fitted and the switches 16, 16
Are held in the recesses 22, 22. The bearing portion 20 has support walls 25 on both front and rear sides.
Shaft holes 26, 26 are provided in the support walls 25, 25, respectively. One of the shaft holes 26 is formed as a blind hole.

The mounting member 15 is integrally formed with a mounting piece 27 extending rearward from the bearing portion 20. A cylindrical fitting portion 28 and a cylindrical fitting portion 28
Is provided at the center of the screw insertion hole 29. Also,
On the front surface of the front plate portion 21 of the mounting member 15, a plurality of holding pieces 30 are protruded from the top and bottom with an interval vertically, and the upper and lower holding pieces 30 are provided.
This forms a lateral holding groove 31 opened at the front surface. Then, the shaft cylinder 18 of the detection plate 14 is attached to the mounting member 15.
After facing the bearing portion 20, the shaft holes 26,
The detection plate 14 is rotatably supported on the mounting member 15 by inserting the pin 32 into the shaft insertion hole 17 of the shaft cylinder portion 18 and the shaft 26, thereby constituting the ball breakage detection device 13. The pin 32 is a simple bar without a retaining head.

On the other hand, a U-shaped locking frame 33 is provided on the back side of the bottom surface of the prize ball tank 2 near the left side of the opening 12 as shown in FIG. In addition, a projection 35 having a screw hole 34 at the center is provided near the right side of the opening. Further, along the front and rear sides in the longitudinal direction of the opening 12, the suppressing pieces 36, 36 and the protruding pieces 37,
37 are provided to face each other. The detent piece 36,
The position of the protruding piece 37, 36 is selected so that the ball break detector 13 is fixed to the back side of the bottom surface of the prize ball tank 2 so as to abut against the side surfaces of the switches 16, 16, respectively.
The position of 37 is selected so as to face the end of the pin 32.

To mount the ball-break detecting device 13, first, the detection plate 14 is inserted from the side of the locking frame 33 so as to face the opening 12 of the premium ball tank 2 from below. Then, the front end holding groove 31 of the mounting member 15 is inserted into the horizontal portion of the locking frame 33, and the cylindrical fitting portion 28 is fitted into the projection 35, and then the screw hole of the projection 35 is removed from the screw insertion hole 29. Screw 3 on 34
8 is screwed and tightened. As a result, the ball cut detector 13 can be fixed to the prize ball tank 2 with one screw 38, and the troublesome screwing operation can be reduced, and the mounting operation can be easily and simplified. It becomes possible.

The switches 16, 16 are fixed to the prize ball tank 2 with the ball-break detecting device 13 attached thereto, and the detent pieces 36, 36 abut against the side surfaces thereof, thereby screwing the switches 16, 16. The switch 16 can be easily held in the recesses 22 of the mounting member 15 without any need, and the work of mounting the switches 16 can be facilitated.

Further, a pin 32 for rotatably supporting the detection plate 14 is used to connect the ball-break detecting device 13 to the prize ball tank 2.
Since the protruding pieces 37, 37 are opposed to the ends of the pins 32 in a state where the pins 32 are attached, the pins 32 can be used as simple rods without a retaining head, thereby reducing the cost. It becomes possible to plan. In addition, since it is not necessary to perform the removal prevention by fitting the E-ring as in the related art, the detection plate 1 is not required.
4 is very easy.

In this embodiment, the mounting member 15 is used.
Although one of the shaft holes 26 has been described as a blind hole, both shaft holes 2
6 and 26 may be insertion holes. Also, one shaft hole 26
Is a blind hole, the one protruding piece 37 facing this is unnecessary.

[0025]

As described above, the mounting structure of the ball cut detecting device in the prize ball tank according to the present invention has a holding frame provided with a holding groove formed at the tip of the mounting member on the back side of the bottom surface of the prize ball tank. The ball-break detecting device can be mounted on the prize ball tank by one screwing operation, and the mounting operation becomes very easy.

In the switch, the side surface of the switch attached to the prize ball tank is in contact with the restraining piece provided on the prize ball tank in a state where the switch is mounted on the prize ball tank. Can be reliably held in the concave portion.

Further, the pin for pivotally supporting the detection plate with respect to the mounting member is prevented from being pulled out since its end is opposed to the projecting piece provided on the premium ball tank. A simple rod-shaped pin without a head can be used, and the trouble of fitting an E-ring and stopping the removal as in the related art can be omitted.

[Brief description of the drawings]

FIG. 1 is a rear view of the upper half of a pachinko machine.

FIG. 2 is a plan view of a premium ball tank.

FIG. 3 is a rear view of a main part of the premium ball tank.

FIG. 4 is an exploded perspective view of a main part of the present invention.

FIG. 5 is a sectional view taken along line AA of FIG. 2;

FIG. 6 is a sectional view taken along line BB of FIG. 2;

FIG. 7 is a sectional view taken along line CC of FIG. 2;

FIG. 8 is an explanatory diagram of a conventional technique.

FIG. 9 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 2 prize ball tank 9 bottom surface 12 opening 13 ball cut detection device 14 detection plate 15 mounting member 16 switch 17 shaft insertion hole 22, 22 recess 23 protrusion 24, 24 hole 26, 26 shaft hole 28 cylindrical fitting portion 29 screw insertion hole DESCRIPTION OF SYMBOLS 31 Holding groove 32 Pin 33 Locking frame 34 Screw hole 35 Projection 36 Suppression piece 37 Projection piece 38 Screw

Claims (3)

(57) [Claims] 1. A detection plate which faces a rectangular opening formed on a bottom surface of a prize ball tank from below, and a rear end of the detection plate is rotatably supported on the bottom of the prize ball tank and is fixed to the back side of the bottom surface of the prize ball tank. An attachment structure for a ball-out detection device, comprising: an attachment member; and a switch that is operated by rotation of the detection plate, and straddles a side of a short side of an opening on a back side of a bottom surface of the premium ball tank. And a projection having a screw hole in the center near the other side in the short direction of the opening, and a front face is provided at the tip of the mounting member of the ball breaking detection device. Along with forming a lateral holding groove that opens at the same time, a cylindrical fitting portion having a screw insertion hole at the rear end is formed, and the detection plate is inserted from the side of the locking frame to face the opening, Insert the holding groove of the mounting member into the horizontal part of the locking frame,
Furthermore, while fitting the cylindrical fitting portion of the mounting member to the projection,
Screw the screw from the screw insertion hole to the screw hole and tighten it,
The structure for mounting a ball-break detecting device in a premium ball tank of a pachinko machine, wherein the ball-break detecting device is mounted on the premium ball tank. 2. A detection plate which faces a rectangular opening formed on the bottom surface of the prize ball tank from below, and a rear end of the detection plate is rotatably supported and fixed to the back side of the bottom surface of the prize ball tank. In a ball breaking detection device comprising an attachment member and a switch operated by rotation of the detection plate, a flat U-shaped concave portion that is opened on a side surface is provided in the attachment member, and a projection is formed on a rear wall surface of the concave portion. The switch is positioned in the recess, and the protrusion is inserted into a hole provided in the switch to hold the switch in the recess, while the mounting member is fixed to the back side of the bottom surface of the premium ball tank. A switch mounting structure for a ball-out detecting device in a premium ball tank of a pachinko machine, wherein a stopper is provided for contacting a side surface of the switch in a state. 3. A detection plate which faces a rectangular opening formed on the bottom surface of the prize ball tank from below, and a rear end of the detection plate is rotatably supported and fixed to the back side of the bottom surface of the prize ball tank. In a ball breaking detection device comprising a mounting member and a switch operated by rotation of the detection plate, a shaft hole and a shaft insertion hole are formed in each of the detection plate and the mounting member. The detection plate is rotatably supported on the mounting member by inserting a pin without a retaining head into the shaft insertion hole, while the mounting member is fixed to the back side of the bottom surface of the premium ball tank. A detection plate support structure of a ball cut detection device in a premium ball tank of a pachinko machine, wherein a protruding piece facing an end is protruded.