JPH1066751A - Ball detecting switch fitted to prize ball tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ball detecting switch having good performance and little failure at a low manufacturing cost by integrally injection-molding a moving plate and a thin case main body with a conductive synthetic resin, and installing a detecting element in the thin case main body. SOLUTION: This ball detecting switch body B opens or closes a moving plate (b) in response to the presence or absence of external pressure to a ball, operates a detecting element in a case main body (a) with its operation piece, and supplies the ball from a ball supply device. The thin case main body (a) and the moving plate (b) connected to it by a hinge section 1 are integrally injection-molded with a conductive synthetic resin to form a ball detecting switch fitted to a prize ball tank, and its manufacture is very simple. The moving plate (b) is rotated via the flexible thin hinge section 1 in particular, and the hinge section 1 has a simple structure and little failure. Since the case main body (a) and the moving plate (b) are integrally injection-molded with the synthetic resin, a product can be obtained at a low cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball detection switch mounted on a prize ball tank which is attached to a prize ball tank of a pachinko machine, detects the presence or absence of a ball in the tank, and sends a signal to a ball replenishing device. It is.

[0002]

2. Description of the Related Art Conventionally, there is a dish switch for a pachinko machine (Japanese Utility Model Publication No. Sho 53-11029). This thing, the dish switch itself that constitutes it,
It is attached to the top plate of the case that is open at the front, side and bottom, and the back plate of the case has a movable plate of a pan switch pivotally supported at the center of the case. The switch rod of the dish switch comes into contact with the upper part of the movable plate, and such a dish switch is mounted on the peripheral wall of the tank with a U-shaped metal fitting attached to the side plate of the case.

[0003]

In the above-mentioned conventional dish switch for pachinko machines, the dish switch is mounted on the ball tank such that the movable plate thereof is parallel to the straightening passage of the ball. Therefore, there is an advantage that the contact area of the ball with the movable plate can be increased, and the pressure of the pachinko ball flowing from the tank into the straightening passage effectively acts on the movable plate at right angles.

[0004] However, in this conventional device, the case whose front, side and lower parts are opened and the movable plate are separate members, and the movable plate is provided at the center of the case. Since it is assembled by pivoting the back plate, the number of components and the number of assembly steps increase,
There was a disadvantage that the manufacturing cost was high. The present invention
It was created in view of these points, and its purpose is to use it for each pachinko machine in the fiercely competitive pachinko machine industry, such as a ball detection switch attached to a prize ball tank. From the point of view, an object is to provide a product with good performance, less failure, and low manufacturing cost.

[0005]

In order to achieve the above object, according to the present invention, a case body and a movable plate connected by a hinge portion are integrally injection-molded with a synthetic resin and used as a switch. The problem is solved by using a microswitch or a reed switch type proximity switch.

That is, according to the present invention, a movable plate and a thin case body resiliently connected with a hinge portion thereof are provided.
Injection molding with conductive synthetic resin
A detection element is installed in the thin case body to form a ball detection switch body, and the ball detection switch body is configured to be detachably attached to a mounting fixture for a prize ball tank. ing.

In the above-mentioned case main body, a micro switch constituting a detecting element is installed, and a protruding hook for operating the micro switch is provided on the movable plate. When there is no external pressure due to a ball, the movable plate is always opened. In the direction of the hinge, the protruding hook from the movable plate is separated from the contact point of the sensing element in the case body, closing the circuit of the lead wire leading to the ball supply device, and conversely When there is an external pressure due to the ball, the movable plate which tends to open due to the bias of the hinge is closed, whereby the protruding hook portion of the movable plate presses the contact point of the detection element and connects the lead wire to the ball supply device. It is configured to open the circuit.

In the case of using a reed switch type proximity switch, a proximity switch detecting element in which a reed switch and a magnet are opposed to each other is installed in a case body, and a magnetic body provided on a movable plate is provided thereon. Because it is a confrontation, if there is external pressure of the ball, the rotation of the movable plate will cause
By approaching the sensing element of the magnetic proximity switch, the circuit of the lead wire leading to the ball replenishing device is opened to stop replenishment of the ball. By separating, the circuit of the lead wire leading to the ball replenishing device is closed and the ball is replenished.

The case body is made of a conductive synthetic resin. Furthermore, the mounting of the mounting tool and the ball detection switch body to be mounted on the above-mentioned prize ball tank is performed by using a slide elongated hole provided in the holding portion on both sides of the mounting frame of the mounting tool and a slide projection provided on both side plates of the case body. It is configured to be performed by engagement with.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a drawing of the pachinko machine (A) as viewed from the back side. The ball detection switch body (B) of the present invention has an attachment (C) and is installed above the pachinko machine (A). Ball tank (D)
Attached to In the ball detection switch body (B), a thin case body (a) and a movable plate (b) elastically connected to the thin case body (a) by a thin hinge portion (1) are injection-molded integrally with a synthetic resin. In addition, a sensing element (microswitch) (c) or a reed switch type proximity switch (c ') is installed in the thin case body (a). The movable plate (b) is resiliently urged against the thin case body (a) at the thin hinge portion (1) so as to constantly open outward.

The case body (a) is thin, the top plate (2) is inclined lower on the other side than the hinge (1), and the bottom plate (3) has through holes (4) for locking. ) Is provided. A pedestal (6) for mounting the detection element (c) of the microswitch projects slightly inward from the back plate (5). 8 and 9 are provided on both side plates (7) and (7).
As shown in the figure, the slide projections (8), (9) and (10) for locking are located near the back plate (5), and the slide projections (8) and (9) are located near the movable plate (b). ), (9) and (1)
Guide projections (11) and (12) are protrudingly provided at a position between them.

As shown in FIG. 6, the movable plate (b) is provided with a locking hook (d) projecting from the lower inside thereof, and the hook (d) is connected to the upper hinge portion (1). ) Is pressed against the movable plate (b) from the outside against the elasticity of the case, so that the locking portion (13) at the tip end is the rim of the through hole (4) provided in the bottom plate (3) of the case body (a). Through the through hole (4). At this time, the upper surface (14) of the hook (d) is urged to open the movable plate (b) outward by the hinge part (1) of the movable plate (b). ) Is not in contact with the contact (15) protruding from the lower surface of the detection element (c) of the microswitch attached to the microswitch.

As shown in FIG. 6B, the hook (d)
The upper surface (14) is a contact (15) on the lower surface of the sensing element (c).
When it is protruding without touching the circuit, the circuit of the lead wire (e) leading to the ball replenishing device of the detection element (c) is closed, and FIG.
As shown in (c), when the upper surface (14) of the hook (d) pushes the projecting contact (15) on the lower surface of the sensing element (c) by pressing the movable plate (b), The circuit of the lead (e) leading to the replenishing device is open. The ground wire (f) attached to the sensing element (c) is fixed to the pedestal (6) of the conductive synthetic resin case body (a) with a screw (6 ′) and is in contact with the case body (a). This is for removing troubles due to static electricity generated from the pachinko ball and the pachinko machine, and (g) is a plug-in terminal of the lead wire (e).

[0014] As described above, [0011] to [0013] have been described in terms of using the microswitch detection element (c) as the ball detection switch body (B). The point of using the detection element (c ′) of the reed switch type proximity switch will be described. As shown in FIG. 13, a non-contact detecting element (c ′) that operates by magnetic force is mounted in the case body (a). In the reed switch type proximity switch of the detection element (c ′), the configuration of the switch body (20) has a U-shape, and one of (2)
0 ') and a reed switch (21) embedded in the other (20 ") with a magnet (22) facing the other, and this switch body (20) is bonded or embedded in the case body (a) of a conductive synthetic resin. And so on.

The hinge (1) is resiliently attached to the case body (a).
On the inside of the movable plate (b), a hook (d) having an engaging portion (13) that engages with the through hole (4) of the bottom plate (3) of the case body (a) is projected. At the same time, between the hook (d) and the hinge part (1), the rotation of the movable plate (b) due to the external pressure of the ball causes the lead of the U-shaped switch body (20) embedded in the synthetic resin. An iron plate entering a space (23) between the switch (21) and the magnet (22);
A magnetic body (24) such as a nickel plate is protruded.

When the movable plate (b) is rotated by the external pressure of the ball,
The magnetic body (24) is provided in the space (2) of the switch body (20).
When approaching 3), the reed switch (21) closed by the magnet (22) in the switch body (20).
When the magnetic force is shut off, the reed switch (21) is opened, and conversely, when the external pressure due to the ball disappears and the movable plate (b) is opened by the repulsion of the hinge (1), the magnetic body (24) retreats. Therefore, the reed switch (21) is closed by the magnetic force of the magnet (22). (See FIG. 14) In addition, a mercury switch or the like may be provided on the movable plate as another detection element in addition to the detection element to perform the detection.

The attachment (C) comprises an attachment frame (h) and a fixing part (i). The mounting frame (h) has a gate-holding shape as viewed from the front, and holding portions (16) on both sides thereof,
(16) has holding pieces (18) and (18) bent rearward from the front part (17), and the bent parts of the front part (17) and the holding pieces (18) and (18) have In the length direction, long holes (19) and (19) for guiding are provided.

The holding portions (16), (1) of the front portion (17)
The space (20) with (6) has a width into which the thin case body (a) is inserted, and the holding pieces (18), (18)
When the ball detection switch body (B) is mounted on the mounting frame (h), the slide projections (8) protruding from the side plates (7) and (7) of the thin case body (a). ,
(9) and (10) are large enough to be slidably engaged. In addition, the mounting frame (h) is a front part (1
7) A fixing piece (21) projecting rearward from the upper edge and further bent downward is provided with a headed screw (22) for fixing.

A ball detection switch body (B) provided with a detection element (c) in a thin case body (a) with a movable plate (b) is mounted on a mounting frame (h) of a mounting tool (C). Is
As shown in FIG. 3, the holding portion (16) of the mounting frame (h),
A guide projection (1) is provided on the front side of the front portion (17) of (16).
1) and (12) are slide projections (8), (9),
The side plates (7) and (7) of the ball detection switch body (B) are attached to the mounting frame (h) so that (10) is behind the front part (17).
Is inserted from below the mounting frame (h) into the space (20) so as to be between the holding portions (16) and (16).

At this time, the slide projections of the side plates (7) and (7) of the thin case body (a) are projections (8) and (9).
Slot (19) for guiding the mounting frame (h) in the order of (1), (1)
9) to slide into engagement with the guide projections (11), (1).
2) slide projections (8), (9), (10) and guide projections (11) while sliding the front of the front part (17) of the holding parts (16), (16) of the mounting frame (h). , (1
2) and the mounting frame (h) is clamped. At this time, the degree of fitting between the ball detection switch body (B) and the fixture (C) differs between (a) and (b) in FIGS.
As described above, it depends on the mounting position in the vertical direction with respect to the prize ball tank (D) or the depth of the side wall of the prize ball tank (D). When the mounting position is determined, the head is fixed to the prize ball tank (D) by screwing the head screw (22). Then
Insert the insertion terminal (g) into the terminal on the power supply side.

With the above, the assembling of the ball detection switch body (B) with respect to the fixture (C) and the mounting of the ball detection switch body (B) to the winning ball tank (D) by the fixture (C) are completed.

When there is a winning ball in the winning ball tank (D), the ball presses the movable plate (b) of the ball detection switch body (B), so that the movable plate (b) is thin. Case body (a)
, The hook (d) thereof moves forward, and the upper surface (14) of the hook (d) presses the contact (15) projecting from the lower surface of the sensing element (c) of the microswitch. And push it up. As a result, the circuit of the lead wire (e) leading to the ball replenishing device is opened, no signal is sent to the ball replenishing device, and no ball replenishment is performed. Similarly, in the detection element (c ') of the reed switch type proximity switch, the reed switch (21) is opened by the magnetic body (24) entering the space (23) of the switch body (20). No ball is resupplied from the resupply device.

By using a prize ball, a prize ball tank (D)
When the prize balls in the ball are reduced and the ball is not pressed against the movable plate (b) of the ball detection switch body (B), the movable plate (b)
Is rotated outward by the resilience of the hinge above it, so that the contact of the lower surface of the sensing element (c) of the microswitch with the contact (15) by the upper surface (14) of the hook (d) is released and the ball is released. The circuit of the lead (e) leading to the replenishing device is closed, whereby a signal is sent to the replenishing device for the ball to replenish the ball. Similarly, in the detection element (c ′) of the reed switch type proximity switch, the reed switch (21) is closed by separating the magnetic body (24) from the space (23) of the switch body (20). From
A signal is sent to the ball resupply device to replenish the ball. As described above, the action of the ball detection switch body (B) allows the balls to be always stored in the prize ball tank (D) without excess or shortage, so that the game of the pachinko machine (A) is not hindered. . According to the present invention, the thin case body (a) in the ball detection switch body (B) attached to the winning ball tank (D).
On the other hand, the movable plate (b) is connected with the hinge portion (1), and the movable plate (b) is integrally injection-molded with a synthetic resin, and the movable plate (b) is opened and closed depending on the presence or absence of the external pressure of the ball. The hook (d), the magnetic body (24)] activates the detecting element [micro switch, reed switch type proximity switch] in the case body (a), so that the ball is supplied from the ball supply device. It has the characteristic in the place where it did.

[0024]

According to the ball detecting switch mounted on the prize ball tank of the present invention, the thin case main body constituting the switch and the movable plate connected to the thin case main body at the hinge portion are injection-molded integrally with a conductive synthetic resin. Unlike the conventional product, the case main body and the movable plate are composed of separate members, and the movable plate is pivotally assembled using the projections on the back plate of the case. In particular, since the rotation of the movable plate is given to a thin hinge portion having elasticity, the structure of the hinge portion is simplified and there are few failures. Thus, the case body and the movable plate constituting the ball detection switch body are made of synthetic resin. Therefore, the product can be provided at low cost.

The ball detection switch body has a thin case body and is vertically mounted in the prize ball tank, so that not only can the ball storage capacity be increased, but also the ball size can be increased. There is little residue, and problems such as counting errors of spheres are less likely to occur. Further, the fact that the ball detection switch can be mounted vertically on the prize ball tank allows the ball detection switch body to slide up and down with respect to the mounting tool according to the size of the tank. Furthermore, since the case main body is made of a conductive synthetic resin, troubles caused by static electricity generated from the pachinko balls and the pachinko machine in contact with the case main body can be eliminated by the ground wire. A micro switch is used as the ball detection switch in the present invention, and the contact point thereof is directly pressed by the hook portion of the movable plate to operate. However, when this function is sufficiently exerted, furthermore, the non-contact detection is performed. By using the reed switch type proximity switch, the operation of the detection switch can be reduced, so that the ball amount in the winning ball tank can be stabilized.

[Brief description of the drawings]

FIG. 1 is a drawing viewed from the back of a pachinko machine.

FIG. 2 is a drawing in which the ball detection switch body of the present invention is attached to a winning ball tank.

FIGS. 3A and 3B are side views in which the position of the relationship between the ball detection switch body and the mounting tool is shifted.

FIG. 4 is a front view of a relationship between a ball detection switch body and a fixture.

FIG. 5 is a perspective view of an attachment.

FIGS. 6A, 6B, and 6C are side views showing a cross section of a case body and a movable plate of a switch body for ball detection;
The position of the movable plate is different.

FIG. 7 is a front view of a ball detection switch body.

FIG. 8 is a left side view of the same.

FIG. 9 is a right side view of the same.

FIG. 10 is a plan view of the same.

FIG. 11 is a bottom view of the same.

FIG. 12 is a rear view of the above.

FIG. 13 is a perspective view of a ball detection switch body when a reed switch type proximity switch is used as a detection element.

14A and 14B are explanatory diagrams of the operation of a reed switch type proximity switch.

[Explanation of symbols]

 A Pachinko machine B Ball detection switch body C Fixture D Tank for prize ball a Conductive synthetic resin case body b Movable plate c, c 'sensing element d Hook e Lead wire f Ground wire g Insert terminal h Mounting frame i Fixed part DESCRIPTION OF SYMBOLS 1 Hinge part 2 Top plate 3 Bottom plate 4 Through hole 5 Back plate 6 Pedestal 7 Side plate 8, 9, 10 Slide projection 11, 12 Guide projection 13 Locking part 14 Top surface 15 Contact 16 Holding part 18 Holding piece 19 Slot 20 Switch body 21 Reed switch 22 Magnet 23 Space 24 Magnetic material

Claims (6)

[Claims] 1. A movable plate and a thin case body resiliently connected by a hinge portion thereof are integrally injection-molded with a synthetic resin, and a detecting element is installed in the thin case body. A ball detection switch attached to the prize ball tank, wherein the sphere detection switch is configured to be removably attachable to a fixture attached to the prize ball tank. . 2. A micro switch constituting a detection element is provided in the case body, and a movable plate is provided on the movable plate.
A protruding hook for actuating the microswitch is provided, and when there is no external pressure due to the ball, the movable plate opens and the protruding hook separates from the contact point of the microswitch in the case body, thereby connecting the lead wire to the ball supply device. 2. The prize according to claim 1, wherein the circuit is closed, and when there is an external pressure due to the ball, the projecting hook portion of the movable plate presses the contact point of the sensing element to open the circuit of the lead wire leading to the ball supply device. Ball detection switch attached to the ball tank. 3. A magnetic sensor is provided in the case body, and a magnetic body is provided on the movable plate.
When there is no external pressure due to the ball, the magnetic material of the movable plate separates from the proximity switch to close the circuit of the lead wire leading to the ball replenishing device.When there is external pressure on the ball, the magnetic material of the movable plate contacts the proximity switch. 2. The apparatus according to claim 1, wherein the circuit of the lead wire connected to the ball supply device is opened by approaching.
Ball detection switch attached to the prize ball tank described in 4. 4. The ball detecting device according to claim 3, wherein the detecting element operated by the magnetic force is a reed switch type proximity switch. 5. The mounting of the mounting device and the ball detection switch body is performed by a slide elongated hole provided in a holding portion on both sides of a mounting frame of the mounting device and a slide projection provided on both side plates of the case body. 2. The ball detection switch according to claim 1, wherein the ball detection switch is mounted on a winning ball tank. 6. The ball detection switch according to claim 1, wherein the case body is made of a conductive synthetic resin.