JP2006212237A - Key and lock device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a key and lock device for a game machine which effectively prevents the fraudulent act of opening a door, is easy to structure and exhibits a high securing performance. <P>SOLUTION: The key and lock device is provided with a plurality of light-emitting bodies (81a, 81b and 81c) and a plurality of light receiving bodies (82a, 82b and 82c) in a lock body (70), and the insertion portion (7A) of the key body (7) in a translucent portion (84) which transmits light of at least one of the light-emitting bodies and never transmit the light of all the light-emitting bodies when the key is inserted up to a predetermined unlocking position in a key insertion portion (76). A control portion (100) operates an unlocking device (90) when a light reception sensing pattern in which the light-receiving bodies sense light transmitting the translucent portion agrees with a predetermined light reception pattern with the key inserted up to the unlocking position in the predetermined key insertion portion. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a lock device used for a door of a gaming machine, and relates to a locking device that unlocks by a light emitting / receiving pattern.

Conventionally, in gaming machines such as slot machines, the front door is opened illegally by stealing the key to open the front door or making a key, etc., and unauthorized operation on the internal control board or setting change device etc. In other words, fraudulent so-called goto is a problem. In order to prevent such door opening goto, a gaming machine has been devised in which it is difficult to open the door by providing a first key hole and a second key hole and releasing a lock by inserting another key in each. (See Patent Document 1). Moreover, as a lock key device that cannot be unlocked by inserting a foreign object, an appropriate key is detected by inserting a key having a through hole between a light emitting part and a light receiving part as shown in Patent Document 2. A technique for unlocking has been devised.
JP 2002-166013 A JP 2001-31331 A

However, the invention described in the above cited reference 1 requires two unlocking operations to open the door and is effective in preventing goto. Is difficult to perform smoothly and requires two types of locks and keys, so there are disadvantages in terms of cost and key management.
Further, in the invention described in the cited document 2, since the lock is released only when the light from all the light emitting elements is received by all the light receiving elements, for example, a large hole is formed in the central portion of the key body. Even if a key is used, there is a problem that light from all the light emitting elements can be received by all the light receiving elements and unlocked. In addition, when a through hole is randomly formed in the key body, a light emitting element and a light receiving element have to be installed so as to correspond to this, and there is a problem that manufacturing is difficult and time-consuming.

  Accordingly, the present invention has been made to solve the problems of the prior art, and provides a locking device for a gaming machine that can effectively prevent door opening and has a simple configuration and high security performance. With the goal.

The features of the present invention will be described below using the embodiment of the invention shown in the drawings.
In addition, the code | symbol in parentheses and drawing number show the code | symbol and number used in embodiment of invention, and do not limit the technical scope of this invention.
(Feature point)
(Claim 1)
The invention described in claim 1 is characterized by the following points.
That is, the invention according to claim 1 relates to a key lock device including a lock body having a key insertion portion and a key body inserted into the key insertion portion.

Here, the “lock body” is a device for locking a door or the like, and may be, for example, a cylinder lock (70). The “key body” is an unlocking member separated from the lock body (70). In the present invention, it is preferably a plate-like flat key, but is not limited thereto. For example, a cylindrical key body may be used. Further, the “key insertion portion” can be a hole (key insertion hole 76) or a groove into which the key body (7) can be inserted.
In the present invention, it is only necessary that the lock body (70) is unlocked by the key body (7), and the door or the like is not necessarily locked using the key body (7). For example, it includes a key lock device that is automatically locked by a latch mechanism when the door is closed and uses a key body (7) when unlocking.

  The lock body (70) includes a plurality of light emitters (81a, 81b, 81c) and a plurality of light receivers (82a, 82b, 81c) that respectively detect the light emission of these light emitters (81a, 81b, 81c). 82c) are provided opposite to each other in a direction intersecting the insertion direction of the key body (7) across the key insertion portion (76), and receive the light from the light emitters (81a, 81b, 81c). An optical path communicating with the body (82a, 82b, 82c) is formed. Further, when the key body (7) is inserted to the predetermined unlocking position in the key insertion section (76), the plurality of light emitters is inserted into the insertion section (7A) of the key body (7). The light of at least one light emitter (81a, 81b, 81c) among (81a, 81b, 81c) can be transmitted and all the light of the plurality of light emitters (81a, 81b, 81c) can be transmitted simultaneously. A transparent portion (84) is provided.

The `` light path '' is a light-receiving body (82a) provided on the other side of the key insertion section (76) while light from the light-emitting body (81a, 81b, 81c) provided on one side of the key insertion section (76) , 82b, 82c) is a path for light to reach without being obstructed by an obstacle such as the lock body (70), and includes a hole (translucent opening 78) and a notch (translucent slit 75). In addition, a plurality of light paths (75, 78) may be provided so as to correspond to a plurality of light emitters and light receivers, respectively, or may be provided with a size that can accommodate a plurality of light emitters and light receivers.
In addition to the hole (85) and the notch (86) through which the light from the light emitters (81a, 81b, 81c) can pass, the translucent part (84) is formed in an opaque key body (7). A translucent member (87) that is fitted or embedded is included.

Here, the “predetermined unlocking position in the key insertion part (76)” means that the key body (7) is inserted to the deepest part of the hole-like key insertion part (76). It is an appropriate position for using the body (7) to open the lock body (70). In addition, a sensor for detecting insertion of the key body (7) is provided at a predetermined location of the key insertion section (76), and the key body (7) has a predetermined unlocking in the key insertion section (76). It is preferable to form the light emitters (81a, 81b, 81c) and the light receivers (82a, 82b, 82c) so that the light emitters (81a, 81b, 81c) are actuated (become energized) when inserted in the “position”.
Further, “the light of at least one of the light emitters (81a, 81b, 81c) can be transmitted” means that the light transmitting portion (84) is not provided at all (see FIG. 1C). `` Does not transmit all the light of the plurality of light emitters (81a, 81b, 81c) at the same time '' means that the light transmitting portions (84) corresponding to all the light emitters (81a, 81b, 81c) It means to exclude. For example, when three light emitters a, b, and c are provided, any one or two of the light emitters a, b, and c when the key body (7) is inserted to a predetermined position. Is provided with a light transmitting part (84) corresponding to each of the three light transmitting parts (84) corresponding to each of the light emitters a, b, and c, and three light emitters a, b, c together. There is no provision of a large translucent portion (84) (see FIG. 1E) that can be accommodated.

  Further, the lock device according to the present invention includes a light emitting pattern that predetermines which one of the plurality of light emitters (81a, 81b, 81c) emits light, and the plurality of light receivers (82a, 82b). , 82c), a control unit (lock control device 100) for storing a predetermined light receiving pattern indicating which one of the photoreceptors (82a, 82b, 82c) is treated as an effective detection for unlocking; And a lock release device (90) for releasing the lock state of the lock body (70). Then, the control unit (100) is configured such that the light body (82a, 82b, 82c) in a state where the key body (7) is inserted to a predetermined unlocking position in the key insertion part (76). When the light receiving detection pattern that detects the light transmitted through the light transmitting portion (84) matches a predetermined light receiving pattern, the unlocking device (90) is operated. .

The control unit (100) is a control board on which various electronic components are mounted, and can be provided in or near the lock device, but the lock device according to the present invention is used for a door of a gaming machine. May be provided in the control device of the gaming machine.
Here, the “locked state” is a state of the lock body (70) when the lock object using the lock body (70), for example, the front door of the gaming machine is locked. In addition, the lock body (70) can be unlocked by inserting the key body (7) into the key insertion section (76) (the reverse of the locked state), and the key body (7) can be inserted into the key insertion section. (76) Including both those that are inserted into the unlocked state by being rotated in a predetermined direction. Therefore, in the former case, the lock release device (90) is connected to the engaging portion (opening 64) where the hook or the convex portion (74a) is moved by the operation of the motor and engaged therewith, for example. In the latter case, for example, the stopper (92) that has locked the hook or the convex part by the action of the solenoid is released, and the hook (7) is rotated by the rotation of the key body (7). Or the convex part moves and the engagement with the engaging part engaged with them can be released.

(Function)
In the present invention, when unlocking the lock body (70), first, the insertion part (7A) of the key body (7) is inserted to a predetermined position of the key insertion part (76). Here, the translucent part (84) of the key body (7) in the present invention, according to the light emission pattern of the light receiver (81a, 81b, 81c) and the light reception pattern of the light receiver (82a, 82b, 82c), There are provided as many positions and numbers as the light of the light receiving bodies (81a, 81b, 81c) that passes through the light transmitting portion (84) becomes the light receiving pattern of the light receiving bodies (82a, 82b, 82c). As a specific example, for example, a light emission pattern set so that b and c of three light emitters a, b, and c emit light and only light reception of c among three light receivers a, b, and c. If there is a combination of light receiving patterns that is set to be effective, the translucent part (84) of the key body (7) that conforms to this light receiving / emitting pattern can transmit only the light of the light emitting element c. It is. The light of the light emitter b is blocked by the insertion portion (7A) where the light transmitting portion (84) is not provided and does not reach the light receiving portion b, so that an appropriate light receiving pattern is created. In this case, the light transmitting part (84) may be provided at a position corresponding to the light emitter a, but since the light emitter a does not emit light, the presence of the light transmitting part (84) Are irrelevant (see FIG. 1B).

Now, in a state where the key body (7) formed as described above is inserted into the key insertion part (76), the light emitted from the light emitter (81a, 81b, 81c) is the light path (75, 78). The light passes through the light transmitting portion (84) and reaches the light receiving bodies (82a, 82b, 82c). Alternatively, light that has passed through the light path (75, 78) may be blocked by a portion other than the light transmitting portion (84) of the insertion portion (7A), and light may not reach. The photoreceptors (82a, 82b, 82c) that have detected only the light that has passed through the light transmitting section (84) output a predetermined detection signal to the control section (100).
In the control unit (100), it is determined whether or not the light reception detection pattern of the photoreceptor (82a, 82b, 82c) matches a preset light reception pattern. When the received light detection pattern matches the received light pattern, an operation command is output to the lock release device (90), thereby releasing the locked state of the lock body (70). On the other hand, when the received light detection pattern and the received light pattern do not match, the control unit (100) does not output an operation command to the lock release device (90), so the locked state of the lock body (70) is not released.

Thus, in the present invention, the transparent body of the key body (7) is interposed between the plurality of light emitters (81a, 81b, 81c) that emit light in a predetermined light emission pattern and the light receivers (82a, 82b, 82c). By disposing the light portion (84), light transmitted through the light transmitting portion (84) creates a predetermined light receiving pattern. Further, the light receiving / emitting pattern is set so that the light transmitting portion (84) can transmit the light of at least one light emitter and does not transmit the light of all the light emitters. The key body (7) provided with a large light transmitting portion (84) at the center of the insertion portion (7A) as shown in FIG. 1 (E) is not unlocked.
(Claim 2)
The invention described in claim 2 is characterized by the following points in addition to the features of the invention described in claim 1 described above.

That is, the invention according to claim 2 is configured such that the lock body (70) is unlocked by rotating the key body (7) inserted into the key insertion portion (76), The unlocking device (90) prevents rotation of the key body (7) inserted into the key insertion section (76) during locking, and operates under the control of the control section (100) to operate the key body. The rotation prevention of (7) is canceled.
The present invention limits the mode of the unlocking device (90). As a means for preventing the rotation of the key body (7), a key receiving portion (72) provided on the lock body (70) rotatable integrally with the key body (7) is provided by a protruding stopper (92). The thing to latch is mentioned.

(Claim 3)
The invention described in claim 3 is characterized by the following points in addition to the characteristics of the invention described in claim 1 or 2.
That is, the invention according to claim 3 is formed such that the light emission pattern and the light reception pattern stored in the control unit (100) can be changed, and the light reception pattern is changed according to the changed light emission pattern and / or light reception pattern. The key body (7) having the translucent part (84) in a suitable mode is formed so as to be selectively used.
Here, as a means for changing the light emission pattern and the light reception pattern stored in the control unit (100), for example, a storage medium in which predetermined light reception / emission pattern data is recorded is attached to the control unit (100) to transfer the data. In addition, it is possible to rewrite the light-receiving / emitting pattern data stored in the control unit (100) by inputting from a management computer terminal.

When the light receiving / emitting pattern is changed, the mode of the light transmitting portion (84) for forming the light receiving pattern is naturally changed by the light emitting pattern. In this case, even if the light emission pattern is the same, if the light reception pattern is changed, the mode of the light transmitting portion (84) is also changed. Alternatively, even if the light receiving pattern is the same, the mode of the light transmitting portion (84) may be changed by changing the light emitting pattern.
In addition, the “key body (7) having the translucent portion (84) in a mode suitable for the light receiving pattern” may be provided with a plurality of key bodies (7) having different modes of the translucent portion (84). The mode of the translucent part (84) of the one key body (7) may be formed to be changeable. For example, holes (85) are formed in the insertion portion (7A) by the number of the light emitters (81a, 81b, 81c), and fitting members (87) made of a light-shielding material are fitted into the holes (85), and transparent. By forming the light portion (84) and the light shielding portion and appropriately changing the fitting position of the fitting member (87), the mode of the light transmitting portion (84) can be changed.

  According to the present invention, for example, by periodically changing the light receiving / emitting pattern, it is difficult to decode the light receiving / emitting pattern, and security can be improved. In addition, since the key body (7) adapted to the light emitting / receiving pattern is appropriately used, even when the key is stolen, for example, there is no need to replace the lock body (70), and the control unit ( It can be dealt with quickly only by changing the light emitting / receiving pattern setting of 100), and there is no cost for changing the lock.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to prevent a door opening goto effectively, the structure can be provided and the locking device for gaming machines with high security performance can be provided.

A preferred embodiment of the present invention will be described with reference to the drawings, taking a slot machine as an example of a gaming machine.
(Explanation of drawings)
1 to 14 show an embodiment of the present invention.
FIG. 1 is a conceptual diagram showing a translucent part of a key and a light receiving / emitting pattern, FIG. 2 is an exploded perspective view of the slot machine, FIG. 3 is a perspective view of the slot machine with the front door removed, and FIGS. FIG. 10 is a perspective view of the key, FIGS. 12 and 13 are block diagrams schematically showing inputs and outputs of the control device of the slot machine, and FIG. 14 is a power supply circuit diagram of the slot machine. In addition, FIG. 11 is sectional drawing which shows the other example of a lock release apparatus.

(Slot Machine S)
As shown in FIG. 2, the slot machine S in this embodiment is roughly divided into a housing 1 having an opening 11 on the front side, an exchange unit 2 provided inside the housing 1, and an opening of the housing 1. 11 includes a front door 3 that can be opened and closed. Further, the front door 3 can open and close an upper door 30 that can open and close an opening upper portion 13 of the housing 1 and an opening lower portion 14 of the housing unit 1. And an upper door 30 that closes the door.
(Case 1)
The housing 1 is a box opened to the front side consisting of a bottom plate 15 and side plates 16, 16 ', and a top plate and a back plate, and is horizontally placed between the two side plates 16, 16' at a substantially central portion in the height direction. An intermediate plate 12 is provided in the direction. The power supply unit 4 is fixed to the lower surface of the intermediate plate 12, and the hopper unit 5 is placed on the bottom plate 15.

The left side plate 16 ′ on the front side is provided with two casing hinges 19 that are engaged with the lower door 40 and rotatably supported at intervals in the vertical direction. Furthermore, two locking pieces 65 for locking the lower door 40 when the lower door 40 is closed are provided on the side plate 16 on the opposite side of the housing hinge 19 at intervals in the vertical direction. .
(Exchange unit 2)
The replacement unit 2 includes a support body 21 for installing or fixing various components, and a reel unit 20 and a substrate unit 24 fixed to the support body 21.
The support 21 is made of a rectangular metal frame, supports the reel unit 20 and the substrate unit 24, and enables them to be handled integrally. The support 21 may be capable of supporting and fixing other components. In the vertical frame on the left side of the front surface of the frame body 21, two support hinges 25 for rotatably engaging the upper door 30 are provided at intervals in the vertical direction. Two vertical projecting pieces 55 for locking the upper door 30 when the upper door 30 is closed are provided on the opposite vertical frame at intervals in the vertical direction.

  The reel unit 20 includes a plurality of rotating reels 23 having a plurality of symbols displayed around them, and a drive motor for rotating the rotating reel 23, although not particularly illustrated. The board unit 24 is configured mainly with a CPU, and includes a board provided with ROM, RAM, I / O, etc. in a board case, and serves as a control device for controlling the operation of the game and the slot machine. Function. Here, as shown in FIG. 12, the control device of the slot machine S includes a main board and a sub-board that operates in response to various signals from the main board. The main board includes a bet switch 41A and a settlement switch 41B. The output signals from the medal sensor provided below the start switch 41C, the stop switch 41D, and the medal slot 42 are input. Based on these signals, the operation of the hopper unit 5, reel unit 20, medal selector canceling device, and the like is controlled. In addition, the sub-board is configured to control the operation of an effect display unit such as a lamp (decoration unit 33). Further, the main board is connected to the hall computer of the game hall via a relay board, and various management can be performed by outputting predetermined game data from the slot machine S. As the board unit 24, a main board unit and a sub board unit may be provided separately.

The replacement unit 2 is housed inside the upper opening 13 while being placed on the middle plate 12 of the housing 1, and is fixed to the housing 1 by a fixing device 10 such as a catch clip.
(Upper door 30)
The upper door 30 is a plate-like door formed on the support 21 of the replacement unit 2 so as to be rotatable and lockable. As shown in FIG. A symbol display window 31 that can be seen is provided, and a decorative portion 33 is formed around the symbol display window 31. The decoration part 33 may be an electric decoration such as a lamp. Below the symbol display window 31, there is provided a display section 32 for displaying numbers related to games and the like using a 7-segment display or a liquid crystal display device.

Further, as shown in FIG. 3, a speaker 35 for outputting sound is provided at the upper part of the back surface of the upper door 30 and can be engaged with the support hinge 25 inside one side surface. Two upper door engaging portions 36 are provided at intervals in the vertical direction. Further, a lock mechanism 6 is provided inside the side surface on the opposite side of the upper door engaging portion 36.
Furthermore, a hanging piece 34 is formed at the lower end of the upper door 30 along the lower edge as shown in FIG. Although not shown in particular, the hanging piece 34 is for preventing a gap from being formed between the lower end of the upper door 30 and the upper end of the lower door 40 from the front side when the front door 3 is closed. That is, when the lower door 40 is closed, the drooping piece 34 is pressed from the front by the back surface of the lower door 40, and the drooping piece 34 and the back surface of the lower door 40 overlap so that foreign matter such as a wire cannot be inserted from the gap. -ing

And the upper door 30 seals the opening upper part 13 of the housing | casing 1 by locking in the state which accommodated and fixed the replacement | exchange unit 2. As shown in FIG.
(Lower door 40)
The lower door 40 is a door thicker than the upper door 30 for closing the opening lower portion 14 of the housing 1, and is formed on the side plate 16 ′ of the housing 1 so as to be rotatable and lockable. . The upper part of the lower door 40 is an operation part 41 for operating the slot machine, and the upper surface of the lower door 40 protrudes forward of the upper door 30 when the door is closed.
Here, as the operation unit 41, as shown in FIG. 2, a medal slot 42 for inserting game medals, a bet switch 41A for reducing the number of stored medals to replace medal insertion, A settlement switch 41B for paying out, a start switch 41C for starting the rotation of the rotary reel 20, and a stop switch 41D for stopping the rotation of the rotary reel 20 are provided. In addition, a medal tray 43 for storing the medals that have been paid out is formed at the lower part of the lower door 40.

A key hole 44 is provided at the upper right end of the lower door 40, and the lock of the lower door 40 is released by inserting a predetermined key. Details of this will be described later.
Further, as shown in FIG. 3, a medal selector 45 is provided on the back side of the lower door 40 to determine whether the medal is correct or not while guiding the medal inserted from the medal insertion slot 42. In addition, two lower door engaging portions 46 that can be engaged with the housing hinge 19 are provided in one side surface of the lower door 40 at intervals in the vertical direction. A lock mechanism 6 is provided in the side plate 40A on the opposite side.
(Lock mechanism 6)
Next, the lock mechanism 6 will be described in detail. As shown in FIG. 3, the lock mechanism 6 includes an upper door lock mechanism 50 and a lower door lock mechanism 60.

(Upper door lock mechanism 50)
As shown in FIG. 4, the upper door locking mechanism 50 is provided on the back side of the movable plate 51 and the movable plate 51 fixed to the inner side of the side plate of the upper door 30 so as to be movable in the vertical direction. And a spring 53 for biasing the movable plate 51 upward. The upper door 30 is locked by engaging the hook 52 with the protruding piece 55 provided on the support 21.
That is, when the upper door 30 is closed, the upper door 30 closes, and after the slanted side of the hook 52 abuts the protruding piece 55 and the movable plate 51 is pushed downward, it returns to its original position by the force of the spring 53. The hook 52 is automatically locked to the protruding piece 55, and when the lock is released, the movable plate 51 is moved by lowering the release knob 54 protruding downward from the lower end of the movable plate 51. The hook 52 and the protruding piece 55 are disengaged by moving downward. Since the release knob 54 is located on the lower back side of the upper door 30, it cannot be operated unless the lower door 40 is opened. In other words, the upper door 30 cannot be opened unless the lower door 40 is unlocked.

(Lower door lock mechanism 60)
The lower door lock mechanism 60 is basically the same as the upper door lock mechanism 50. That is, as shown in FIG. 5, a movable plate 61 fixed to the inside of the side plate of the lower door 40 so as to be movable in the vertical direction, and provided on the back side of the movable plate 61 and projecting toward the back side. A hook-like hook 62 and a spring 63 for urging the movable plate 61 upward are provided. Then, the lower door 40 is locked by engaging the hook 62 with the protruding piece 65 provided in the housing 1.
However, the lower door lock mechanism 40 can be unlocked by inserting a predetermined key into the key hole 44 and turning it. That is, inside the keyhole 44, there are a cylinder lock 70 for releasing the engagement between the hook 62 and the protruding piece 65 by the rotation of the key, and a key sensor 80 for detecting whether the key inserted into the keyhole 44 is a correct key. And a lock release device 90 for allowing rotation of the key inserted into the cylinder lock 70 when the key sensor 80 detects a normal key.

(Cylinder lock 70)
As shown in FIG. 9, the cylinder lock 70 is a cylindrical lock device, and is housed inside a cylindrical outer cylinder 71 and the front side of the outer cylinder 71 (the front side of the lower door 40; the same applies hereinafter). And the rotary plate 74 provided on the rear side of the outer cylinder 71 (the back side of the lower door 40; the same applies hereinafter).
The outer cylinder 71 is a hollow cylinder fixed to the back plate or the like of the lower door 40, and light transmitting slits 75 that face each other across the hollow part are formed on the side wall on the front side. A lock release device 90 is attached to the upper part on the rear side.
The key receiving portion 72 is a columnar body that is fitted into the hollow portion of the outer cylinder 71, and is fixed along the inner surface of the outer cylinder 71 so as to be rotatable in the left-right direction when viewed from the front. 6 and 8, a rectangular key insertion hole 76 that opens to the front side is formed in the key receiving portion 72, and the space formed by the key insertion hole 76 is the key hole 44. Become. Note that the key receiving portion 72 is set so that the key insertion hole 76 is a rectangular shape in front view in the locked state. Then, when the plate-like key 7 (see FIG. 10) is inserted into the key insertion hole 76 and the key sensor 80 determines that the key is an appropriate key, the key 7 is rotated to thereby obtain a key receiving portion. 72 is configured to rotate inside the outer cylinder 71.

Further, as shown in FIGS. 6 and 8, a translucent opening 78 penetrating perpendicularly to the inner wall surface 76a formed by the long side of the long rectangular key insertion hole 76 is formed on the front side of the key receiving portion 72. Has been. That is, when the key receiving portion 72 is in the locked position, the translucent opening 78 matches the translucent slit 75 of the outer cylinder 71 and penetrates from one side of the translucent slit 75 to the other side to insert the key. An optical path perpendicular to the key insertion direction of the hole 76 is formed.
Further, on the rear side of the key receiving portion 72, a rectangular groove 77 is provided on the surface in the orthogonal direction of the light transmitting opening 78, as shown in FIG. As shown in FIG. 6, the groove 77 has a depth of about one third of the diameter of the key receiving portion 72, and the stopper 92 of the unlocking device 90 protrudes into the groove 77, whereby the key 77 The rotation of the receiving part 72 is prevented.

  A rotating plate 74 connected by a shaft 73 is attached to the rear end portion of the key receiving portion 72. As shown in FIG. 9, the rotating plate 74 is a deformed cam type plate member having a projection 74 a, and the cylinder lock 70 has an opening 64 in which the projection 74 a is formed above the movable plate 61 of the door lock mechanism 60. Is arranged to engage with. The protrusion 74a is formed to move up and down by the rotation of the key receiving portion 72. Specifically, in the locked state, the protrusion 74a is located in the space of the opening 64, and when the key receiving part 72 is rotated to the right on the front side while satisfying a predetermined unlocking condition, the protrusion 74a is on the lower side. The movable plate 61 is pushed down by contacting the lower end of the opening 64 and the engagement between the hook 62 and the protruding piece 65 is released.

(Key sensor 80)
The key sensor 80 is an optical sensor provided on the side of the outer cylinder 71 of the cylinder lock 70, and detects whether or not the key 7 inserted into the key insertion hole 76 is proper. . Then, as shown in FIG. 9, the key sensor 80 has a light emitting portion 81 in which light emitting elements 81a, 81b, 81c are attached to a printed circuit board 83, and similarly, light receiving elements 82a, 82b, 82c are attached to the printed circuit board 83. The light receiving unit 82 is configured. As shown in FIG. 8, the light-emitting part 81 and the light-receiving part 82 are installed outside the light-transmitting slit 75 of the outer cylinder 71, and the locked state, that is, the light-transmitting opening 78 of the key receiving part 72 is aligned with the light-transmitting slit 75. In this state, the light receiving elements 82a, 82b, 82c are formed so as to be able to receive light emitted from the light receiving elements 82a, 82b, 82c.

  In the locked state, the light emitting unit 81 emits light from any one, two, or all of the light emitting elements 81a, 81b, 81c in accordance with a preset light emission pattern. When the light receiving unit 82 receives light from the light emitting unit 81, the light receiving unit 82a, 82b is in accordance with a preset light receiving pattern with the key 7 inserted into the key insertion hole 76. , 82c are configured to output a predetermined detection signal when one or two of them receive light from the light emitter 81. For example, when two of the light receiving elements 82a and 82c receive light, detection signals of the light receiving elements 82a and 82c are output. Then, when the light receiving unit 82 outputs an appropriate detection signal based on the light receiving pattern, the unlocking device 90 described below is activated, and the key receiving unit 72 of the cylinder lock 70 can be rotated.

  Here, as shown in FIG. 10, the key 7 used in the cylinder lock 70 is provided with a translucent portion 84 in a plate-like insertion portion 7 </ b> A inserted into the key insertion hole 76. The translucent portion 84 may be a hole 85 as shown in FIG. 10A or a notch 86 as shown in FIG. The light transmitting portion 84 is provided at a position where light emitted from the light emitting elements 81a, 81b, and 81c can pass when the key 7 is inserted into the key insertion hole 76, but the light emitting elements 81a, 81b, and 81c are provided. At least one of them is not provided with a corresponding translucent portion 84. That is, the translucent part 84 is formed so that the light emitted from all the light emitting elements 81a, 81b, 81c does not pass through at the same time. For example, the light transmitting portion 84 in FIG. 10A is provided corresponding to the light emitting elements 81a, 81c, and even if all the light emitting elements 81a, 81b, 81c emit light, the light receiving portion 82 has light emitting elements. Only 81a, 81c light reaches. 10B is provided corresponding to the light emitting elements 81a and 81b, and even if all of the light emitting elements 81a, 81b, and 81c emit light, the light receiving section 82 has light emitting elements. Only 81a, 81b light reaches.

The light emission pattern of the light emitting unit 81 and the light reception pattern of the light receiving unit 82 are set so as not to match. That is, the light emitted from the light emitting portion 81 not only passes through the light transmitting portion 84 of the key 7 inserted into the key insertion hole 76 but is also shielded by a portion other than the light transmitting portion 84 of the key 7, thereby causing a predetermined light reception. Form a pattern. That is, the number and position of the light transmitting portions 84 are set according to the light emission pattern of the light emitting portion 81 and the light receiving pattern of the light receiving portion 82, and details thereof will be described later.
By the way, as shown in FIG. 10C, the key 7 may be a member in which a fitting member 87 is fitted into a hole 85 formed in the insertion portion 7A. The holes 85 are provided corresponding to all the light emitting elements 81a, 81b, 81c. As the fitting member 87, a light transmitting member 87a made of a transparent material and a light shielding member 87b made of an opaque material are provided. The hole 85 into which the translucent member 87a is fitted becomes the translucent portion 84. If formed in this way, a plurality of types with a single key 7 depending on which of the holes 85 corresponding to the light emitting elements 81a, 81b, 81c is fitted with the light transmitting member 87a and which is fitted with the light shielding member 87b. The aspect of the translucent portion 84 can be created. Instead of providing the translucent member 87a, the translucent portion 84 may be formed as a hole 85, and the light shielding member 87b may be fitted only where it is not desired to be the translucent portion 84.

(Unlock device 90)
The unlocking device 90 prevents the rotation of the key receiving portion 72 of the cylinder lock 70 in the locked state, and when the key sensor 80 outputs an appropriate detection signal, the locked state of the key receiving portion 72 Is released to allow the key receiving portion 72, and thus the rotating plate 74, to rotate, and to allow the lower door 40 to be unlocked.
Specifically, as shown in FIGS. 6 and 7, the lock release device 90 is housed in a case fixed to the upper rear end portion of the outer cylinder 71 and is lowered through a through hole 79 formed in the outer cylinder 71. A plate-like stopper 92 that protrudes toward the bottom, a spring 93 that urges the stopper 92 in a downward direction, and an electromagnet 91 that is fixed to the upper part of the case and the upper part of the stopper 92. The stopper 92 has a shape that can be fitted into a groove 77 formed in the key receiving portion 72. When the electromagnet 91 is energized, a magnetic force is generated in a direction that attracts each other. The stopper 92 is pulled upward with a strong force.

  At the time of locking, the lock release device 90 is in a non-energized state, and the stopper 92 pressed by the spring 93 is fitted in the groove 77, so that the key receiving portion 72 cannot rotate. On the other hand, when the key sensor 80 outputs an appropriate detection signal, the unlocking device 90 is energized, the stopper 92 is pulled upward by the attractive force of the electromagnet 91, and the stopper 92 and the groove 77 are engaged. Is released, and the key receiving portion 72 can be rotated. That is, when the incorrect key 7 is inserted into the key insertion hole 76, the key sensor 80 does not output an appropriate detection signal, so the key 7 cannot be rotated. However, when the appropriate key 7 is inserted, Since the key sensor 80 outputs an appropriate detection signal, the lock of the lower door 40 can be released by rotating the key 7.

In the above-described unlocking device 90, the stopper 92 is projected by a solenoid, but a motor may be used as a drive source for operating the stopper 92. For example, although not particularly illustrated, the stopper 92 moves by meshing with a gear rotated by a motor and a rack provided on the stopper 92, or a hook-like protrusion provided on the tip of the motor shaft is formed on the outer periphery of the key receiving portion 72. It is also possible to engage with the cutout.
(Lock control device 100)
The lock control device 100 is for controlling the operation of the lock release device 90, and is a control board provided separately from the control device of the slot machine S, although not particularly shown. As shown in FIG. 13, the lock control device 100 includes a light emission control unit 110 and a determination unit 120. The lock control device 100 receives signals from the light receiving unit 82 and the light emission pattern changing unit 130, and the light emitting unit 81 and It is configured to output a predetermined signal to the unlocking means 90.

The light emission control unit 110 is for causing the light emitting unit 81 to emit light with a predetermined light emission pattern, and the determination unit 120 receives a detection signal received by the predetermined light receiving element from the light receiving unit 82 and receives the detection signal. It is for operating.
The light emission pattern changing means 130 is a means capable of externally inputting light emission / reception pattern data composed of the light emission pattern data of the light emitting unit 81 and the light reception pattern data of the light receiving unit 82, although not particularly shown. The data can be input from the terminal shown in FIG. Alternatively, it may be a recording medium such as a memory card that can be inserted into a dedicated slot provided in the lock control device 100 (substrate). The light emission control means 110 reads the light emission pattern data changed by the light emission pattern changing means 130, so that the light emitting elements 81a, 81b, 81c emit light with a predetermined pattern. The light receiving pattern data changed by the light emitting pattern changing means 130 is read by the determining means 120, so that the light receiving pattern data and the light receiving detection pattern data received by the light receiving elements 82a, 82b, 82c (from the light receiving section 82) are received. Is detected).

  Further, the light emission control means 110 is formed so that the key sensor 80 is activated when the key 7 is inserted into the key insertion hole 76 as far as possible. Although not particularly illustrated, a detection unit that detects the tip of the key 7 is provided in the back of the key insertion hole 76. When the detection unit detects the key 7, the light emitting unit 81 and the light receiving unit 82 are It is designed to be in an energized state. By forming in this way, the light emitting element does not always emit light, which is useful for energy saving, and only the tip portion of the key 7 is inserted into the key insertion hole 76, or anything other than the key is inserted into the key insertion hole 76. By inserting it into the, it is possible to prevent a predetermined light receiving pattern from being artificially created. That is, unless the key 7 having a predetermined shape is inserted to a predetermined position in the depth direction, the key sensor 80 does not work, so that the lock cannot be released. Note that the light emission of the light emitting unit 81 based on the detection of the key 7 may be performed only for a predetermined time (for example, several seconds). If formed in this way, picking over time becomes impossible.

By the way, the key sensor 80, the lock release device 90, and the lock control device 100 are connected to an uninterruptible power supply connected to an external power supply separately from the power supply of the slot machine S as shown in FIG. . The external power supply and the uninterruptible power supply are arranged in the island facility of the game arcade where the slot machine S is installed. The key sensor 80, the lock release device 90, and the lock control device 100 operate even when the main power supply of the slot machine S is OFF or when the external power supply is OFF.
(Setting of light emitting / receiving pattern and translucent part 84 of key 7)
Here, a light emitting pattern that determines which light emitting element 81a, 81b, 81c emits light, a light receiving pattern that determines which one of the light receiving elements 82a, 82b, 82c receives light, and a light receiving / emitting pattern A specific example of the setting of the translucent part 84 of the key 7 corresponding to will be described with reference to FIG. In the drawing, white circles and white squares represent non-light emission of the light emitting elements and non-light reception of the light receiving elements, and black circles and black squares represent light emission of the light emitting elements and light reception of the light receiving elements.

First, the case where the light emitting pattern emitted by the light emitting elements 81a, 81b, 81c and the light receiving pattern received by the light receiving elements 82a, 82c are described. In this case, as shown in FIG. 1A, by inserting the key 7 provided with the translucent portion 84 corresponding to the light emitting elements 81a and 81c into the key insertion hole 76, the light emitting elements 81a and 81a and The light emission of 81c passes through the light transmitting portion 84 and the light emission of the light emitting element 81b is blocked by the key 7 to generate an appropriate light receiving pattern. The light receiving unit 82 outputs detection signals from the light receiving elements 82a and 82c, and the lock release device 90 is operated based on the detection signals.
On the other hand, in the case where the above setting is made, even if the key 7 without the light transmitting portion 84 formed therein is inserted into the key insertion hole 76 as shown in FIG. All the light emission of 81b and 81c is blocked by the key 7, and the light receiving elements 82a, 82b and 82c cannot receive any light. The light receiving unit 82 does not output any detection signal, and the lock release device 90 does not operate depending on such an inappropriate detection mode. On the other hand, when the key 7 having the large elliptical light-transmitting portion 84 as shown in FIG. 1E is inserted into the key insertion hole 76, the light-transmitting portion 84 becomes the light emitting elements 81a, 81b, All the light emission of 81c is allowed to pass, and all of the light receiving elements 82a, 82b, 82c receive light. The light receiving unit 82 outputs detection signals of the light receiving elements 82a, 82b, and 82c, but the lock release device 90 does not operate due to such an inappropriate detection signal.

Next, a case where the light emitting pattern emitted by the light emitting elements 81b and 81c and the light receiving pattern received by the light receiving element 82c are set will be described. In this case, as shown in FIG. 1B, the key 7 provided with the translucent portion 84 corresponding to the light emitting elements 81a and 81c is inserted into the key insertion hole 76 to the light emission of the light emitting element 81c. Passes through the translucent portion 84 and the key 7 blocks the light emission of the light emitting element 81b, and an appropriate light receiving pattern is generated. The light receiving unit 82 outputs a detection signal of the light receiving element 82c, and based on this, the lock release device 90 operates.
On the other hand, when the setting is made as described above, the key 7 provided with the translucent portion 84 corresponding to the light emitting elements 81a and 81b is inserted into the key insertion hole 76 as shown in FIG. In addition, the light emission of the light emitting element 81b passes through the light transmitting portion 84 and the key 7 blocks the light emission of the light emitting element 81c. The light receiving unit 82 outputs a detection signal of the light receiving element 82b, but the lock release device 90 does not operate due to such an inappropriate detection signal. On the other hand, when the key 7 formed with the elliptical large light-transmitting portion 84 as shown in FIG. 1 (F) is inserted into the key insertion hole 76, the light-transmitting portion 84 of the light emitting elements 81b and 81c. The light receiving elements 82b and 82c receive light by passing the light emission. The light receiving unit 82 outputs detection signals of the light receiving elements 82b and 82c, but the lock release device 90 does not operate due to such an inappropriate detection signal.

As described above, a plurality of different light emission patterns can be set by determining the light emitting elements to emit light, and a plurality of different light emission patterns can be set by determining the light receiving elements in which light reception is effective. . Then, the mode of the translucent part 84 of the key 7 is determined in order to realize the light receiving pattern set by the set light emission pattern.
However, if the light emission pattern is matched with the light reception pattern, the lock is released in any light reception / emission pattern when the key 7 as shown in FIGS. 1E and 1F is used. Avoid setting. That is, for example, a combination of a light emission pattern emitted by the light emitting elements 81a, 81b, 81c and a light reception pattern received by the light receiving elements 82a, 81b, 82c, a light emission pattern emitted by the light emitting element 81a, and a light reception received by the light receiving element 82a The combination of patterns is inappropriate.

  Here, in the case illustrated in FIGS. 1A and 1B, the key 7 having the same aspect of the light transmitting portion 84 can be used, but the light transmitting portion 84 may be changed depending on the light emission pattern and the light receiving pattern. There is a need for different aspects. Therefore, if a plurality of light emitting / receiving pattern data and the corresponding key 7 are prepared, even if the key 7 is stolen, the light emitting / changing pattern changing means 130 causes the lock control device 100 to change the different light receiving / emitting pattern data. By inputting, it is possible to cope quickly without changing the lock. In addition, for example, by changing the light receiving / emitting pattern randomly on a daily basis, it becomes difficult to decode the light receiving / emitting pattern, and security can be improved.

In the present embodiment, three light emitting elements and three light receiving elements are provided, but by increasing this number, it is possible to create more different light receiving and emitting patterns. In such a case, a large amount of keys 7 having different shapes of the light-transmitting portions 84 corresponding to the light receiving and emitting patterns are required. Therefore, when the light-transmitting portion 84 is made to be a fitting type as shown in FIG. Is preferred.
(Unlocking the lower door 40)
The unlocking of the lower door lock mechanism 60 having the above configuration will be described.
First, in the locked state, as shown in FIG. 5, the hook 62 is locked to the protruding piece 65, and at this time, the protrusion 74 a of the rotating plate 74 is located in the middle of the opening 64 of the movable plate 61. Yes. Further, as shown in FIG. 6, the lock release device 90 protrudes a stopper 92 to prevent the key receiving portion 72 from rotating.

Next, when a predetermined key 7 is inserted into the key insertion hole 76 and the key detection unit provided at the inner end of the key insertion hole 76 detects the insertion of the key 7, the key sensor 80 is turned on. That is, the light emitting unit 81 causes the light emitting element to emit light with a predetermined light emission pattern. The light from the light emitting part 81 passes through the light transmitting slit 75 of the outer cylinder 71, the light transmitting opening 78 of the key receiving part 72, and the light transmitting part 84 of the key 7, and reaches the light receiving part 82. The light receiving unit 82 outputs a detection signal received by the light receiving element to the lock control device 100. The determination means 120 that has received the detection signal puts the lock release device 90 in an energized state when the light reception signal matches a predetermined light reception pattern.
When the lock release device 90 is energized, the electromagnet 91 is excited and the stopper 92 comes out of the groove 77 of the key receiving portion 72, so that the key receiving portion 72 can be rotated. Therefore, by rotating the key 7 in the right direction according to the example of FIG. 9, the rotating plate 74 rotates, and the protrusion 74a engages with the opening 64 to push the movable plate 61 downward. As a result, the hook 62 and the projecting piece 65 are disengaged, and the lower door 40 can be opened. In addition, since the positions of the light transmitting slit 75 and the light transmitting opening 78 are shifted due to the rotation of the key receiving portion 72, the light emission of the light emitting portion 81 does not reach the light receiving portion 82. For this reason, the lock release device 90 is in a non-energized state and the stopper 92 protrudes, but the position of the groove 77 is also displaced by the rotation of the key receiving portion 72, so the stopper 92 stops at the surface of the key receiving portion 72. To do. At this time, even if the key 7 is pulled out from the keyhole 44 or left inserted, the situation does not change.

  When the lower door 40 is locked from the state where the key receiving portion 72 is rotated as described above, the key is first inserted into the key hole 44, and the key receiving portion 72 is rotated so as to return to the original position. In this case, since the key sensor 80 does not have to be turned on, it is not always necessary to cause the key detection unit provided at the back end of the key insertion hole 76 to detect the insertion of the key 7. That is, the key 7 may be inserted into the key insertion hole 76 so that the key receiving portion 72 rotates. When the key receiving portion 72 returns to the original position, the groove 77 whose position is shifted is positioned below the stopper 92, and the stopper 92 projects into the groove 77 by the biasing force of the spring 93. As a result, the key receiving portion 72 is again prevented from rotating. When returning the key receiving portion 72 to the original position, even when the key sensor 80 is turned on, the key 7 is returned after returning the direction of the key hole 44 to the original position, that is, the position where the key insertion hole 76 is a vertically long square. By pulling out the key sensor 80, the key sensor 80 is turned OFF, the lock release device 90 is deenergized, and the stopper 92 projects into the groove 77.

As described above, after locking the cylinder lock 70 with the key receiving portion 72 kept from rotating, when the lower door 40 is closed, the movable plate 61 is moved up and down by the oblique side of the hook 62 and the biasing force of the spring 63, The hook 62 and the protruding piece 65 are engaged with each other to automatically lock. At this time, since the protrusion 74a of the rotating plate 74 is located substantially in the middle of the opening 64, it is not interfered with the downward movement of the movable plate 61.
(Another example of unlocking device 90)
By the way, in the above-described embodiment, the above-described unlocking device 90 keeps the locked state by preventing the rotation of the key receiving portion 72 of the cylinder lock 70, and when the proper insertion of the key 7 is detected. The cylinder lock 70 is formed so that the rotary plate 74 can be rotated regardless of the rotation of the key 7, and the lock release device 90 can be actively activated. You may form so that it may function as the cancellation | release means which performs unlocking. That is, as long as an appropriate key 7 is inserted into the keyhole 44, the key receiving portion 72 may be automatically unlocked without being rotated.

  Specifically, as shown in FIG. 11, a motor 94 is embedded in the rear side of the key receiving portion 72, and the motor shaft of the motor 94 is connected to the shaft 73, so that the drive of the motor 94 is directly applied to the rotary plate 74. It can be something that you are trying to communicate. In the locked state, that is, when the predetermined key 7 is not inserted into the key insertion hole 76, the motor 94 stops driving with the rotating plate 74 positioned so as not to engage with the opening 64 of the movable plate 61. When the key sensor 80 detects an appropriate key, the driving is started, and the driving is stopped by rotating the rotating plate 74 by a predetermined angle. Thereby, the protrusion 74a of the rotating plate 74 pushes down the movable plate 61, and the engagement between the hook 62 and the protruding piece 65 is released. In the state where the key 7 is still inserted into the key insertion hole 76, the motor 94 is not driven, and when the detection signal output of the key sensor 80 stops when the key 7 is pulled out from the key insertion hole 76, this time By rotating in the reverse direction, the rotating plate 74 is rotated to the position at the time of locking.

When unlocking the lower door 40 having the unlocking device 90, the key sensor 80 is activated by inserting a predetermined key 7 into the key hole 44 to detect the key, and the motor 94 is driven to rotate the rotating plate. By rotating 74, the hook 62 and the protruding piece 65 are disengaged, and the door can be opened. On the other hand, when locking the lower door 40, the lower door 40 is closed with the key 7 inserted into the key hole 44, and when the key 7 is removed from the key hole 44, the motor 94 is driven reversely to reverse the rotating plate 74. The movable plate 61 is moved upward by the spring 63 and the hook 62 and the protruding piece 65 are engaged with each other, and the door is locked.

In this embodiment, the lower door 40 is provided with a cylinder lock 70 and unlocked with the key 7, and the lower door 40 is opened so that the upper door 30 can be unlocked. However, the upper door 30 may be provided with a lock similar to the cylinder lock 70 so that the lower door 40 can be locked and unlocked separately. Further, the lock mechanism 6 is not limited to the one described in the above embodiment, and may be any configuration as long as the door is opened by the operation of the lock release device 90. For example, the protrusion is projected into a recess provided on the inner side of the side plate 16 of the housing 1 to be in a locked state, and the protrusion is formed so as to come out of the recess by the operation of the unlocking device 90. It may be.

  Furthermore, it goes without saying that the present invention can also be used in slot machines in which the front door 3 is a single door, and game machines other than the slot machine.

It is an embodiment of the present invention and is a conceptual diagram showing a translucent part of a key and a light receiving / emitting pattern. 1 is an exploded perspective view of a slot machine according to an embodiment of the present invention. FIG. 4 is a perspective view of the slot machine according to the embodiment of the present invention with the front door removed. It is an embodiment of the present invention, and is a side view showing an outline of an upper door lock mechanism. It is an embodiment of the present invention and is a side view showing an outline of a lower door locking mechanism. 1 is a longitudinal sectional view of a cylinder lock according to an embodiment of the present invention. It is the sectional view on the AA line of FIG. It is embodiment of this invention, Comprising: It is a cross-sectional view of a cylinder lock. 1 is a perspective view of a cylinder lock according to an embodiment of the present invention. 1 is a perspective view of a key according to an embodiment of the present invention. It is other embodiment of this invention, Comprising: It is a longitudinal cross-sectional view of a lock release apparatus. FIG. 4 is a block diagram showing an input and an output of the control device of the slot machine according to the embodiment of the present invention. It is an embodiment of the present invention, and is a block diagram showing input and output of a lock control device. FIG. 4 is a schematic diagram showing a power supply circuit of the slot machine according to the embodiment of the present invention.

Explanation of symbols

S slot machine 1 housing 2 exchange unit 3 front door 4 power supply unit 5 hopper unit 6 lock mechanism 7 key (key body)
7A insertion part
10 Fixing device 11 Opening
12 Middle plate 13 Upper opening
14 Lower opening 15 Bottom plate
16 Side plate 19 Housing hinge
20 reel unit 21 support
23 Rotating reel 24 Board unit (control device)
25 Support hinge
30 Upper door 31 Symbol display window
32 Display 33 Decoration
34 Drooping piece 35 Speaker
36 Upper door engagement part
40 Lower door 41 Operation section
42 Medal slot 43 Medal tray
44 Keyhole 45 Medal selector
46 Lower door engagement part
50 Upper door lock mechanism 51 Movable plate
52 Hook 53 Spring
54 Unlocking knob 55 Protruding piece
60 Lower door lock mechanism 61 Movable plate
62 Hook 63 Spring
64 Opening 65 Protruding piece
70 Cylinder lock (tablet) 71 Outer cylinder
72 Key holder 73 Shaft
74 Rotation 75 Translucent slit (light path)
76 Key insertion hole (key insertion part) 77 Groove
78 Translucent aperture (light path) 79 Through hole
80 Key sensor 81 Light emitter
81a, 81b, 81c Light-emitting element (light-emitting body) 82 Light-receiving part
82a, 82b, 82c Light receiving element (photoreceptor) 83 Printed circuit board
84 Translucent part 85 hole
86 Notch 87 Fitting member
90 Unlocking device 91 Electromagnet
92 Stopper 93 Spring
94 Motor
100 Lock control device (control unit) 110 Light emission control means
120 judging means 130 light emission pattern changing means

Claims (3)

A lock device comprising a lock body having a key insertion portion and a key body inserted into the key insertion portion,
The lock body is provided with a plurality of light emitters and a plurality of light receivers that respectively detect light emission of these light emitters, facing each other in a direction intersecting the key insertion direction with the key insertion portion interposed therebetween. And an optical path communicating from the light emitter to the light receiver is formed,
When the key body is inserted up to a predetermined unlocking position in the key insertion portion, the light insertion portion of the key body can transmit light of at least one light emitter among the plurality of light emitters, And a translucent part that does not transmit all the light of the plurality of light emitters simultaneously is provided,
A light emission pattern that determines which of the plurality of light emitters emits light in advance, and which of the plurality of light receivers is to be detected as effective detection for unlocking in advance. A control unit for storing a predetermined light receiving pattern;
A lock release device for releasing the locked state of the lock body,
The control unit has a predetermined light receiving detection pattern in which the light receiving body detects light transmitted through the light transmitting portion in a state where the key body is inserted to a predetermined unlocking position in the key inserting portion. A lock device for operating the lock release device when the light receiving pattern coincides with the received light receiving pattern. The lock body is formed so as to be unlocked by rotating the key body inserted into the key insertion portion,
The lock release device prevents rotation of the key body inserted into the key insertion portion during locking, and releases rotation prevention of the key body by operating under the control of the control unit. Item 10. A lock device according to item 1. A light emitting pattern and a light receiving pattern stored in the control unit are formed to be changeable,
3. The key lock device according to claim 1 or 2, wherein a key body having a light transmitting portion in a mode suitable for the light receiving pattern can be selectively used according to the changed light emitting pattern and / or light receiving pattern. .

Images