JPH03241183A - Cylinder lock - Google Patents

Abstract

PURPOSE:To effectively prevent illegal operation of a pinball machine by providing a switching means which is actuated by the rotation of a seat wheel in a cylinder lock and electrically detecting the unlocking operation of the lock. CONSTITUTION:A switching means 16 composed of a driving magnet 161, lead switch 162, and magnetic balancer magnet 163 buried in the peripheral wall of a seat wheel 15 is provided in a cylinder lock 1 mounted on the front face of the front frame of a pinball machine. When a key inserted into a key hole 10 is turned leftward (rightward) for unlocking the lock 1, the front frame is opened by the rotation of the wheel 15. In addition, the magnet 161 moves leftward (rightward) from the middle point and becomes farther from the switch 162 and the switch 162 is turned on by a change in the magnetic field formed by the magnet 161. Therefore, the unlocked state of the lock 1 can be indicated by an indicator lamp in a control room, etc., and, accordingly, illegal operation of the pinball machine can be prevented.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a cylinder lock, and in particular to a cylinder lock that is attached to the front of the front frame of a pachinko machine and is used to unlock a glass door frame by turning a key in one direction. This relates to a cylinder lock whose front frame is unlocked by turning it in the opposite direction.

[Conventional technology]

As is well known, in a pachinko machine, a front frame and a glass door frame are attached to the front of the machine so that they can be opened and closed. The front frame and the glass door frame are normally locked by a locking mechanism, and if a ball gets caught in the needle of the game board or a prize-winning ball is not paid out, the front frame is locked. By inserting a key into the keyhole of a cylinder lock provided on the front and rotating it in one direction or the opposite direction, either the front frame or the glass door frame was opened.

[Problem that the invention attempts to solve]

By the way, at gaming parlors, employees are required to carry keys to open and close the front frame or glass door frame, so if an employee loses the key and a player finds it, the player will be unable to retrieve the key. There was a risk that illegal games could be carried out, such as opening the front frame or glass door frame illegally to generate a special prize game condition (jackpot) or adjusting the nails. In addition, such illegal games are often carried out by using duplicate keys or by employees and players working together.

Therefore, an object of the present invention is to provide a cylinder lock that can effectively prevent fraudulent games as described above.

[Means to solve the problem]

In order to achieve the above object, the present invention provides an inner case that is fixedly provided in a cylindrical cavity of a case with a keyhole formed on the front surface, and a seat wheel having a lock shaft in the inner case that is rotatably provided. This cylinder lock is installed and is locked or unlocked by rotating the seat wheel together with the key, and the case is provided with a switch means that is activated by the rotation of the seat wheel in the unlocking direction.

[Effect]

The switch means provided in the cylinder lock is activated when the seat wheel is rotated together with the rotation of the key to unlock the lock. Therefore, by monitoring the opening state of the front frame or glass door frame of the pachinko machine based on the operation of the switch means, fraudulent gaming can be prevented.

〔Example〕 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of the cylinder lock of the present invention, and FIG. 2 is a longitudinal sectional view of the main parts. Cylinder iii: 1 has a keyhole 1 on the front
It has a case 11 in which 0 is formed. A cylindrical cavity 12 communicating with the keyhole 10 is formed inside the case 11.
An inner case 13 is fixedly provided in the cylindrical cavity 12,
A seat wheel 15 is inserted into the shaft hole 14 passing through the center of the case 13.
A lock shaft 15a is rotatably inserted therein. The inner case 13 and the seat wheel 15 are provided with a plurality of pairs of drive pins 17a.
and a locking pin 17b are provided so as to be slidable in the axial direction together with the coil spring 18.

Then, when the driving pin 17a is pushed with the key, the locking pin 17b is retracted into the inner case 13, and the inner case 13 and the seat wheel 15 are disengaged, thereby making the seat wheel 15 rotatable.

Therefore, in the present invention, a switch means 16 is provided in association with the seat wheel 15. The switch means 16 includes a driving magnet 161 embedded in the peripheral wall of the seat wheel 15 and a reed switch 16 disposed in the cavity of the case 11.
2 and a magnetic balancer magnet 163. The driving magnet 161 and the reed switch 162
When the key is inserted into the keyhole 10, that is, when the key is at the center point, the reed switch 162 is kept in the OFF state by the approach of the driving magnet 161, and the reed switch 162 is kept in the OFF state by turning the key in one direction or the opposite direction. Their relative positions are selected so that the reed switch 162 is turned on as it moves away from the reed switch 162. The reed switch 162 and the magnetic balancer magnet 163 are assembled into a switch case 17, and the switch case 17 is attached to the screw 1 as shown in the figure.
At 8, it is detachably attached to the case 11. Therefore, if the reed switch 162 is damaged, it can be easily replaced by removing the screw 18 and taking out the switch case 17 from the case 11. Further, a lead wire 19 comes out from the switch case 17, and an opening 20 through which the lead wire 19 can be drawn out is formed at the upper end of the case 11.

FIG. 4 shows a front view of a pachinko machine equipped with the cylinder lock 1 of the present invention. The pachinko 8130 has a front frame 32 attached to the front of an outer frame 31 so as to be openable and closable. Front frame 3
A metal frame 33 is attached to the periphery of the window hole 2, and the metal frame 33
A glass door frame 34 is attached to one side of the door so as to be openable and closable. As shown in FIG. 5, a mounting frame 35 is fixed to the back surface of the front frame 32, and a game board 36 is positioned and detachably mounted on this mounting frame 35. Further, a locking mechanism 40 for the front frame 32 and the glass door frame 34 is provided inside the front frame 32 on the open side. will be installed on the

As shown in FIGS. 6 and 7, the locking mechanism 40 is roughly composed of a support plate 41, a front frame locking rod 42, a glass door frame locking rod 43, and a cylinder member 44. The support plate 41 includes the mounting plate portion 41a and the vertical plate portion 4.
1b is formed into a disconnected circuit shape, and its mounting plate portion 4
1a is fixed to the back surface of the front frame 32.

Further, a mounting hole 411 for the cylinder member 44 is formed in the intermediate portion of the mounting plate portion 41a, and threaded holes 412, 412 are formed above and below the mounting hole 411.

The front frame locking rod 42 is connected to the vertical plate portion 4 of the support plate 41.
1b so as to be vertically slidable. Further, the glass door frame locking rod 43 is connected to the middle part of the front frame locking rod 42 and the support plate 4.
It is held in a vertically slidable manner in a gap 45 formed between it and the vertical plate portion 41b of No. 1. Further, the middle part of the front frame locking rod 42 is formed into a narrow width by a vertically long notch 421, and the width dimension of the glass door frame locking rod 43 is selected so that it is located alongside the narrow width part.

The cylinder member 44 has a cylindrical body 441. This cylindrical body 441 is fixed to the support plate 41 with screws 46. Further, a rotation shaft 442 is rotatably provided in the cylindrical body 441. A cam plate 443 is attached to the rear end of the rotation shaft 442.
It is fixed with bolts 444. Two engaging protrusions 443a and 443b are provided on the cam plate 443 at different positions.

Hook pieces 422.42 are provided at the upper and lower ends of the front frame locking rod 42.
2 are connected. Further, at a substantially intermediate position, a retaining portion 4 that can be engaged with one of the engaging protrusions 443a of the cam plate 443 is provided.
23 is formed by bending. This front frame locking rod 42 is always urged upward by a spring 47.
The hook pieces 422, 422 of this are engaged with locking metal fittings 48, 48 fixed to the inside of the outer frame 31, respectively, to lock the front frame 32. Further, the glass door frame locking rod 43 is integrally formed with an engaging piece 431 and a retaining portion 432 that can be engaged with the other engaging protrusion 443b of the cam plate 443 by bending. This glass door frame locking rod 43 is always urged upward by a spring 49, and the locking piece 43] is attached to the opening/closing lever piece 34 of the glass door frame 34.
1 is positioned above it so that it can be pushed down.

The locking mechanism 40 includes an intermediate member 5 as shown in FIG.
0 to the cylinder lock 1. Intermediate member 5
0 is a protrusion 501 that fits into a square hole formed at the rear end of the lock shaft 15a of the seat wheel 15, and a disc-shaped spring receiver 5.
02, and a cylindrical portion 503 in which a square hole into which the rotation shaft 442 of the cylinder member 44 is fitted is formed.

A coil spring 51 is interposed between the inner case 13 and the spring receiver 502 to reliably maintain the connection between the cylinder lock 1 and the cylinder member 44.

Therefore, insert the key into the keyhole 10 of the cylinder lock 1 and
When turned to the right (clockwise) in the figure, the rotation of the seat wheel 15 causes the rotation shaft 442 of the cylinder member 44 to move through the intermediate member 50.
At the same time, the cam plate 443 rotates in the direction of the arrow in FIG. Then, as the cam plate 443 rotates, one of the engaging protrusions 44
3a engages with the engagement protrusion 423 of the front frame locking rod 42 and pushes the front frame locking rod 42 upward as shown by the chain line in the figure. By this, the hook piece 422422 and the locking metal fitting 48.4
8 is released and the front frame 32 is opened,
The driving magnet 61 of the seat wheel 15 moves rightward from the center point and away from the reed switch 162, and the reed switch 162 is turned on due to the change in the magnetic field.

On the other hand, when the key is turned to the left in FIG. 3 (counterclockwise), the cam plate 443 rotates in the direction of the arrow in FIG.
3b engages with the engaging portion 432 of the glass door frame locking rod 43 and pushes the glass door frame locking rod 43 downward as shown by the chain line in the figure. As a result, the opening/closing lever piece 341 is pushed down by the engagement piece 431 and the glass door frame 34 is opened, and the drive magnet 161 of the seat wheel 15 is moved leftward from the center point and the door switch 162 is moved. The reed switch 162 turns on due to the change in the magnetic field.
be done.

In this way, according to this embodiment, the front frame 32 or the glass door frame 34 can be unlocked and opened by rotating the key in the right or left direction, and the lead can be opened each time the front frame 32 or the glass door frame 34 is opened. Switch 162 can be activated. Therefore, for example, if an indicator lamp is installed in the command room of a game parlor, and the indicator lamp is turned on every time the reed switch 62 is activated, the front frame 32 or glass door frame 34 of any pachinko machine can be It is possible to easily know whether the bottom has been opened, and by monitoring the pachinko machine based on this information, it is possible to prevent illegal games.

Furthermore, by inputting the pulse signal of the reed switch 162 into the hole computer and comparing it with the occurrence time of the special prize game card RI (jackpot), it is possible to easily check whether or not an illegal game has been played. Furthermore, if the monitor television is automatically moved toward the Pachinko machine by the signal from the reed switch 162, there is an advantage that the monitoring work becomes very easy.

In the above embodiment, the case where the reed switch 162 is used as a dual-purpose switch for the front frame 32 and the glass door frame 34 has been described, but for example, as shown in FIG. Reed switches 162a162b that are turned on corresponding to the magnets 161 may be provided to individually detect the opening operation of the front frame 32 or the glass door frame 34.

〔Effect of the invention〕

As described above, according to the cylinder lock of the present invention, when the key is turned to unlock the lock, it is detected electrically, so when used in a pachinko machine, for example, it prevents illegal games using duplicate keys. It helps a lot.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a cylinder lock, Fig. 2 is a vertical side view of the main part, Fig. 3 is a longitudinal front view of the main part, and Fig. 4 is a front view of a pachinko machine equipped with the cylinder lock of the present invention. Fig. 5 is a perspective view of the pachinko machine seen from the back with the front frame open, Fig. 6 is an exploded perspective view of the lock am, Fig. 7 is a perspective view of the main parts of the locking mechanism, and Fig. 8 is a perspective view of the front frame. FIG. 9 is an action diagram explaining the unlocking operation of the glass door frame. FIG. 10 is a vertical cross-sectional side view showing the relationship between the cylinder lock and the locking mechanism.
The figure shows another embodiment. ■... Cylinder lock, IO... Keyhole, 11... Case, 12... Cylindrical cavity, 13... Inner case, 15
... Seat wheel, 15a... Lock shaft, 16... Switch means.

Claims (1)

[Scope of Claims] An inner case is fixedly provided in a cylindrical cavity of a case having a keyhole formed in the front surface, and a seat wheel having a lock shaft is rotatably mounted on the inner case, and the seat wheel is rotatably mounted on the inner case. What is claimed is: 1. A cylinder lock which is locked or unlocked by rotating the seat wheel together with a key, characterized in that a switch means which is activated by the rotation of the seat wheel in the unlocking direction is provided in the case.