JPH04105679A - Front frame and glass frame unlocking device for pinball machine - Google Patents

Abstract

PURPOSE:To provide a device for easily unlocking the front frame and the glass frame of a pinball machine by unlocking the frames by means of a single electrical driving device and by pushing the front frame unlocked forward, by a method wherein an engagement member engaged and disengaged with a hook member is provided on the front frame, and an operating piece faces a place above a lever for opening and closing. CONSTITUTION:By the rotation in one direction of a reversible motor, a movable rack is moved forward through a gear, and by an inclined plane on one side of the movable rack, a first link is slid upward, and thus the state of engagement between a hook member and an engagement member is disengaged. In this way, a frame is ready to open, and is pushed by the front end of the movable rack, and opened. On the other hand, by the reverse rotation of the reversible motor, the movable rack is moved rearward through the gear, and by an inclined plane on the other side of the movable rack, a second link is slid upward, and thus an operating piece is turned downward and pushes a lever for opening and closing. In this way, a locking mechanism is unlocked and a glass frame is opened.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an unlocking device for a front frame and a glass frame in a pachinko machine, and particularly for a pachinko machine in which the front frame and glass frame are electrically unlocked. This invention relates to an unlocking device for the front frame and glass frame of a machine.

[Conventional technology]

As is well known, in a pachinko machine, a front frame is attached to the front of the machine frame so that it can be opened and closed, and a glass frame is attached to the front of the front frame so that it can be opened and closed.

Conventionally, the front frame or glass frame was opened by inserting a key into a keyhole provided in the front frame and rotating the key. For this reason, fraudulent games such as opening the front frame or glass frame using a duplicate key, paying out prizes without relying on winning balls, or adjusting the nails to make it easier for the ball to win a prize have frequently occurred.

Therefore, recently, in order to prevent such illegal games, it has been proposed to electrically unlock the front frame and the glass frame without using a key. (For example, JP-A No. 6
3-177887).

[Problem to be solved by the invention]

By the way, in conventional pachinko machines, the front frame and the glass frame are unlocked using separate electric drive sources, which is not only unreasonable in terms of space but also expensive. Another problem was that it was very difficult to open the front frame after unlocking.

Therefore, an object of the present invention is to provide a pachinko machine in which the front frame and the glass frame can be unlocked by one electric drive source, and the front frame can be easily opened by pushing the unlocked front frame forward. An object of the present invention is to provide an unlocking device for a front frame and a glass frame of a machine.

[Means to solve the problem]

The present invention is a pachinko machine in which a front frame is attached to the front of the machine frame so that it can be opened and closed, a glass frame is attached to the front frame so that it can be opened and closed, and a locking mechanism is provided to open the glass frame by pushing down an opening/closing lever. A hook piece for locking the front frame and an operating piece for unlocking the glass frame are pivotally mounted inside the machine frame, and
A first interlocking rod linked to the hook piece and a second interlocking rod linked to the operating piece are provided so as to be movable up and down, and both the interlocking rods are biased downward by a spring, and are attached to the inner lower part of the machine frame. is equipped with a reversible rotary motor and a movable rack that meshes with a gear fixed to the output shaft of the reversible rotary motor to move the machine frame in a linear direction in the front-rear direction, and pushes the front frame forward as it moves forward. The front and rear upper surfaces of the rack are each provided with sloped portions, the lower end of the first interlocking rod is brought into contact with one of the sloped portions, and the lower end of the second interlocking rod is brought into contact with the other sloped portion, respectively; The front frame is provided with an engaging member that engages with and disengages from the hook piece, and an operating piece faces above the opening/closing lever.

[Effect]

By rotating the reversible motor in one direction, the movable rack moves forward via the gear, and by sliding the first interlocking rod upward by one slope of the movable rack,
The engagement state between the hook piece and the retaining member is released. As a result, the front frame can be opened, and the front frame is pushed and opened with the front end of the movable rack.

In addition, the movable rack moves backward via the gear due to the rotation of the reversible motor in the opposite direction, and the second interlocking rod is slid upward by the other sloped part of the movable rack, so that the operating piece is directed downward. , and press the opening/closing lever.

This unlocks the locking mechanism and opens the glass frame.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a front view of the pachinko machine, and FIG. 2 is a perspective view of the pachinko machine with the front frame opened.

Pachinko Ill has a front frame 3 attached to the front of a machine frame 2 so as to be openable and closable. A metal frame 4 is attached to the periphery of the window hole of the front frame 3, and a glass frame 5 is attached to one example of the metal frame 4 so as to be openable and closable. Further, a game board mounting frame 6 is fixed to the back surface of the front frame 3, and a game board 7 is positioned and detachably mounted on this game board mounting frame 6. Furthermore, a mechanism plate 8 is rotatably mounted on the back surface of the game board 7.

Rollers 9 and 10 are provided as retaining members on the inside of the front frame 3 on the open side and at the top and bottom positions on the outside of the game board mounting frame 6 (see FIG. 2). As shown in FIG. Second interlocking rods 11, 12 are each provided to be movable up and down. Further, metal fittings I3 are fixed to the center and upper and lower parts of the inner surface of the machine frame 2. Support shafts 14.15 are formed on the upper and lower metal fittings 13, and the rear ends of hook pieces 16.17 for locking the front frame, which engage and disengage from the rollers 9.10, are pivoted to the support shafts 14 and 15, respectively. The intermediate portions of the hook pieces 16, 17 are connected to the first interlocking rod 11 via pins 18, 19.
is pivotally connected to. Further, guide pins 20 are formed on the center, upper and lower metal fittings 13, respectively, and the guide pins 20 are fitted into guide grooves 21 of the first interlocking rod 11 and slide on the first interlocking rod 11. Support freely. Further, the first interlocking rod 11 is always urged downward by a spring 22.

On the other hand, the rear end of an operating piece 23 for unlocking the glass frame is pivotally connected to the upper position of the second interlocking rod 12 via a pin 24, and the approximately middle portion of this operating piece 23 is located at the center. It is rotatably attached to the metal fitting 13 via a support shaft 25.

Further, the guide pin 26 formed on the central metal fitting 13 and the support shaft 15 are fitted into the guide groove 27 of the second interlocking rod 12 to slidably support the second interlocking rod 12.

As shown in FIGS. 3 and 4, a reversible rotary motor 28 for electrically unlocking the front frame 3 or the glass frame 5 is fixed to the inner lower part of the machine frame 2 via a mounting plate 29. A gear 31 is fixed to the output shaft 30. And gear 3
1 is engaged with a movable rack 32 that is slidably supported in the longitudinal direction of the machine frame 2 via a mounting plate 29, and is adapted to transmit the rotation of the reversible motor 28 to the movable rack 32. Further, on the front and rear portions of the upper surface of the movable rack 32, first. A second slope portion 33 , 34 is formed, the lower end of the first interlocking rod 11 is brought into contact with the first slope portion 33 via a roller 35 , and the second slope portion 34 is brought into contact with the lower end of the first interlocking rod 11 through a roller 35 .
The lower ends of the two are brought into contact via a roller 36.

The gear 31 has three through holes 37a and 37b on its side.

37C is drilled. In addition, each through hole 3 is provided on the mounting plate 29.
A mouth-shaped photosensor 38 incorporating a light emitting element and a light receiving element is fixed in association with 7a to 37C.

This photosensor 38 allows the light from the light emitting element to pass through the holes 37a to 37a.
The position is selected so that the light passes through 37c and enters the light receiving element. The through hole 37a is used to command the reversible motor 28 to stop, and the through holes 27b and 27
C is used to command the reversible rotation motor 28 to rotate in the opposite direction.

A locking mechanism 39 is provided on the inside of the front frame 3 located on the open side in association with the protruding piece 11a formed approximately in the middle of the first interlocking rod 11 and the operating piece 23 of the second interlocking rod 12. It will be done. This locking mechanism 39 includes a support plate 4 fixed to the back surface of the front frame 3 as shown in FIGS. 7 to 9.
0, and a front frame unlocking rod 41 and a glass frame unlocking rod 42 are provided on a vertical piece 40a formed on one side edge of the support plate 40 in a state that they are overlapped in front and back, and each guide A guide pin 43 is fitted into the grooves 41a and 42a and is held slidably up and down. The front frame unlocking rod 41 and the glass frame unlocking rod 42 are connected to each other by a spring 44.
1 is biased downward, and the glass frame unlocking lever 42 is biased upward. Further, an engagement piece 45 and a receiving piece 46 are formed by bending at the rear edge and lower end of the front frame unlocking rod 41, respectively, and a protruding piece of the first interlocking rod 11 is provided above the receiving piece 46 at the lower end. 11a are positioned so that they can collide. Also glass frame unlocking rod 4
A retaining piece 47.4 is attached to the front edge of each by bending.
8 is formed, and a receiving piece 49 is formed at the lower end by bending.
is formed. One of the retaining pieces 48 is positioned above the opening/closing lever 50 of the glass frame 5 so as to be able to push it down, and a second interlocking rod 1 is provided on the upper surface of the receiving piece 49.
Two operation pieces 23 are positioned in contact with each other. As a result, the second interlocking rod 12 is moved to the receiving piece 49 by the spring 44.
It will be constantly urged downward via. Note that when the opening/closing lever 50 is pushed downward, the locking piece (not shown) protruding from the glass frame 5 is released from the locking piece that locks the glass frame 5, thereby opening the glass frame 5. be.

On the other hand, a cylinder lock 51 exposed on the front side of the front frame 3 is fixed to the support plate 40 of the locking device 139. This cylinder lock 51 can be used to lock the front frame 3 or the glass frame 51 using a key when the pachinko Ill is installed, when there is a power outage, or even when the power supply to the pachinko Ill is stopped, such as after the store is closed.
6 The cylinder lock 5 is used to unlock the cylinder lock 5.
The lock shaft 52 is rotatably supported in 1.
The supporting plate 40 projects rearward, and a cam plate 53 is fixed to the projecting end thereof. The cam plate 53 is provided with locking protrusions 54 and 55 at different positions on the front and rear surfaces, and one of the locking protrusions 54 is connected to the locking piece 4 of the front frame unlocking rod 41.
The other locking protrusion 55 is positioned so as to be lockable with the upper surface of the engagement piece 47 of the glass frame unlocking rod 42.

Next, a case will be described in which the front frame 3 or the glass frame 5 is electrically unlocked in the above configuration. When the front frame 3 or the glass frame 5 is electrically unlocked, it is performed based on an unlocking command signal from, for example, a command room of a game parlor. That is, when a command signal for unlocking the front frame 3 is sent, the reversible rotary motor 28 rotates in one direction, and the gear 31 rotates in the direction of the arrow in FIG. 5 via its output shaft 30. The movable rack 32, which engages with this by rotation, is slid to the right as shown by the chain line in FIG. The first interlocking rod 11 comes into contact with the first slope portion 33 of the movable rack 32 as it slides.
moves upward as shown by the chain line in the same figure, and the hook pieces move 16° and 17 accordingly.
and rollers 9 and 10 are released. As a result, the front frame 3 is unlocked, and at the same time, the front end of the movable rack 32 pushes the front frame 3, opening the front frame 3 as shown in Mu in the figure.

When the movable rack 32 reaches almost the end, the light from the light emitting element of the photosensor 38 enters the light receiving element through the through hole 37b of the gear 31, and sends out a signal to rotate the reversible motor 28 in the opposite direction. . Accordingly, the reversible rotary motor 28
rotates in the opposite direction, and the movable rack 32 slides to the left to reach the original position shown by the solid line in FIG.
The light from the light projecting element enters the light receiving element through the through hole 37a of the gear 31, and the reversible rotation motor 28 is stopped. At the same time, the first interlocking rod 11 is lowered into its original position under the bias of the spring 22, allowing the engagement of the hook pieces 16,17 with the rollers 9,10.

On the other hand, when the unlocking command signal for the glass frame 5 is sent in the state shown by the solid line in FIG. The gear 31 rotates in the direction of the arrow in FIG.
slide it to the left as shown by the chain line in the figure. As the movable rack 32 slides to the left, the second interlocking rod 12 that comes into contact with the second slope portion 34 moves upward as shown by line M in the figure.
In response, the operating piece 23 rotates downward about the bottle 24 and pushes down the receiving piece 49 of the glass frame unlocking rod 42 of the locking mechanism 39 (see the chain line in Figure 9), thereby releasing the glass frame. The engagement piece 48 of the lock lever 42 pushes down the opening/closing lever 50, and the glass frame 5 is unlocked. When the light from the light emitting element of the photosensor 38 enters the light receiving element through the through hole 37c of the gear 31, a signal is sent to rotate the reversible motor 28 in the opposite direction. When the movable rack 32 rotates in the opposite direction and reaches its original position as shown by the solid line in FIG. 6, the reversible motor 28 is stopped. At the same time, the second interlocking lever 12 is lowered to its original position by the bias of the spring 44, releasing the push-down of the glass frame unlocking lever 42.

In addition, when unlocking the front frame 3 using a key, insert the key into the cylinder lock 51 and turn it in the direction of the arrow in FIG.
2 rotates the cam plate 53.

Then, by rotating the cam plate 53, one of the retaining protrusions 54
engages with the retaining piece 45 of the front frame unlocking rod 41 and pushes the front frame unlocking rod 41 upward as shown by the chain line in the same figure, and at the same time, the receiving piece 46 of this engages with the retaining piece 45 of the front frame unlocking rod 41. The piece 11a is pushed upward and the first interlocking rod 11 is moved upward. This allows hook pieces 16, 17 and rollers 9, 1
0 is released and the front frame 3 can be opened.

When the key is turned in the direction of the arrow in FIG. 9, the other engaging protrusion 55 of the cam 153 engages with the engaging piece 47 of the glass frame unlocking rod 42, and the glass frame unlocking rod 42 is moved as shown by the chain line in the figure. At the same time, the opening/closing lever 50 is pushed down by the engagement piece 48. This opens the glass frame 5.

In addition, a shutter mechanism 56 is provided on the front surface of the front frame 3 in relation to the cylinder lock 51. This shutter mechanism 56 is for preventing the key from being used for unauthorized purposes. Specifically, as shown in FIGS. 10 and 11, a support plate 57 is provided which is screwed to the front surface of the front frame 3. The support plate 57 has a plurality of mounting holes 58 and a cylinder lock 51.
A circular hole 59 and an opening 60 are bored through which the front part of the front part faces. Furthermore, support pieces 61 are formed on both upper sides of the support plate 57 .

A vertically elongated hole 62 is bored in the support piece 61 . Also, the support plate 5
A microswitch 63 is mounted on the front surface of 7 and above the opening 60.

Further, a lid member 64 is attached to the front surface of the support plate 57. The lid member 64 is formed into a box shape with an open rear surface, and projections 65 are formed at the upper portions of both sides thereof. And protrusion 6
5 is fitted into the vertically elongated hole 62, so that it is supported on the front surface of the support plate 57 so as to be openable and closable. The lower side of the 1 member 64 is formed long so as to face into a recess 66 formed on the front surface of the front frame 3, and an engagement hole 6 is formed in the portion located inside the recess 66.
7 is drilled. Further, a protruding piece 68 is formed on the lower side of the lid member 64 to protrude downward and to be engaged with the inner surface of the lower edge of the entrance part 60. Note that a solenoid 69 is installed in the recess 66.

The position of the engagement hole 67 of the lid member 64 is selected so as to correspond to the upper part of the plunger 70 of the solenoid 69 when the lid member 64 is in the closed state as shown by the solid line in FIG. 1I. Further, the length of the protruding piece 68 of the lid member 64 is selected to be slightly shorter than the length of the opening 60 in the vertical direction.

Therefore, opening of the lid member 64 is achieved by lifting the protruding piece 68 to a position where it is removed from the lower edge of the opening 60. A cam stepped portion 72 is formed on the inner surface of the lid member 64 so that when the lid member 64 is lifted, the actuator 71 of the microswitch 63 is pressed and turned on. The microswitch 63 is configured to be turned ON and the solenoid 69 is energized only when the front frame 3 can be unlocked by the reversible motor 28.

In this shutter mechanism 56, when the reversible rotary motor 28 is powered on, when the lid member 64 is lifted upward, the actuator 71 of the microswitch 63 is pressed by the cam step 72 and turned ON, and at the same time the solenoid 69
is excited, and its plunger 70 projects upward as shown by the chain line in FIG. 11 and enters the engagement hole 67. This locks the lid member 64 so that it cannot be opened, completely preventing the key from being used for unauthorized purposes.

〔Effect of the invention〕

As described above, according to the present invention, the front frame or the glass frame can be opened with one reversible rotary motor, which is very convenient.

Furthermore, since the front frame is pushed forward at the same time as the lock is unlocked, opening the front frame can be performed extremely easily.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a front view of a pachinko machine, FIG. 2 is a perspective view of the pachinko machine with the front frame open, and FIG. 3 is a machine frame of the pachinko machine. Fig. 4 is a perspective view of a portion of the inner surface; Fig. 4 is a perspective view of a portion of the reversible motor;
Fig. 7 is an exploded perspective view of the locking mechanism, Fig. 8 and 9 are perspective views of the locking mechanism, Fig. 10 is an exploded perspective view of the shutter mechanism, and Fig. 11 is an exploded perspective view of the locking mechanism. is a sectional view of a shutter mechanism portion. 1... Pachinko machine, 2... Machine frame, 3... Front frame,
5... Glass frame, 9.10... Roller (engaging member), 11... First interlocking rod, Work 2... Second interlocking rod, 16.17... Hook piece, 22... spring, 23...
...Operation piece, 28...Reversible rotary motor, 30...
Output shaft, 31... Gear, 32... Movable rack, 33
...first slope part, 34...second slope part, 39.
...Lock mechanism, 44...Spring, 50...Opening/closing lever Fig. 7 Fig. 9 Fig. 1o Fig. 11

Claims (1)

[Scope of Claims] A pachinko machine in which a front frame is attached to the front of the machine frame so that it can be opened and closed, a glass frame is attached to the front frame so that it can be opened and closed, and a locking mechanism is provided to open the glass frame by pushing down the opening/closing lever. A hook piece for locking the front frame and an operating piece for unlocking the glass frame are pivotally mounted on the inside of the machine frame, and a first interlocking rod linked to the hook piece is linked to the operating piece. A second interlocking rod is provided so as to be movable up and down, and both interlocking rods are biased downward by springs, and a reversible rotary motor and a second interlocking rod fixed to the output shaft of the reversible rotary motor are provided at the lower inside of the machine frame. A movable rack is provided which meshes with a gear wheel to move the machine frame in a linear direction in the longitudinal direction, and pushes the front frame forward as it moves forward, and slopes are provided on the upper surfaces of the front and rear surfaces of the movable rack, respectively. The lower end of the first interlocking rod is brought into contact with the slope portion of the first interlocking rod, and the lower end of the second interlocking rod is brought into contact with the other slope portion, and the front frame is provided with an engaging member that engages with and disengages from the hook piece. An unlocking device for a front frame and a glass frame in a pachinko machine, characterized in that an operating piece is faced above an opening/closing lever.