JP6269381B2 - Cylinder lock - Google Patents

Description

  The present invention relates to a cylinder lock.

Patent Document 1 uses a distributor's key and an operator's key so that a large number of persons can possess the combined key and operate the device while maintaining the convenience. Describes a key operation method that can improve the security without changing the setting.
Patent Document 1 JP 2014-23595

  In a lock used in a gaming machine or the like, it is desired to be able to grasp that the lock has been opened illegally in a distribution process or the like.

  The cylinder lock which concerns on 1 aspect of this invention is accommodated in the outer cylinder which has a display window, the inner cylinder which is rotatably accommodated in an outer cylinder, has a keyhole, and is movably accommodated in an outer cylinder, and shows a 1st display aspect. The first display area includes at least one of the first display area from a first position where at least a part of the first display area is visibly exposed from the display window when pressed with a key inserted into the keyhole. And a first display panel that moves to a second position where the portion is not visibly exposed from the display window and is not pressed by the key.

  In the cylinder lock, the first display panel may be pushed by the key as the key rotates and move from the first position to the second position.

  In the cylinder lock, the first display board is arcuate and may move from the first position to the second position along the inner wall of the outer cylinder.

  In the cylinder lock, when the first display panel is in the first position, the first display panel is pushed by the inner wall of the outer cylinder and is elastically deformed in the direction of the central axis of the keyhole, whereby the first display panel When the portion is positioned on the key rotation path and the first display panel is in the second position, the elastic deformation in the direction of the central axis of the keyhole is smaller than when the first display panel is in the first position. The first portion of the first display board may be retracted from the key rotation path.

  In the cylinder lock, the outer cylinder has an inner wall recess formed in the inner wall, and when the first display panel is in the second position, the second portion of the first display panel is fitted into the inner wall recess, so that the first The elastic deformation in the direction of the central axis of the keyhole may be smaller than when the display panel is in the first position.

  The cylinder lock may be a variable lock that can be unlocked with a common key that can change the key code and that can reset the key code and a unique key that cannot reset the key code.

  The cylinder lock is disposed between the inner cylinder and the first display panel, and is different from the first display mode and the second display mode, the second display region showing the second display mode different from the first display mode. A second display panel including a third display area showing a third display mode, the outer cylinder further rotatably accommodates the second display panel, and the display window includes at least a part of the first display area. When the key that is not visibly exposed and can be unlocked is a common key, at least a part of the second display area is visibly exposed and at least a part of the first display area is visibly visible. When the key that is not exposed and can be unlocked is a unique key, at least a part of the third display area may be exposed so as to be visible.

  The cylinder lock may further include a partition plate between the first display panel and the second display panel, and the outer cylinder may further accommodate the partition panel in a non-rotatable manner.

  The summary of the invention does not enumerate all the features of the present invention. In addition, a sub-combination of these feature groups can also be an invention.

It is a figure which shows an example of the external appearance perspective view of the cylinder lock which concerns on this embodiment. It is a figure which shows an example of the disassembled perspective view of a cylinder lock. It is the figure which looked at the cylinder lock from the front. It is a figure which shows an example of sectional drawing of the cylinder lock in the state in which the insertion part of the common key was inserted in the keyhole. It is a figure which shows an example of sectional drawing of the cylinder lock in the state in which the insertion part of the intrinsic | native key was inserted in the keyhole.

  Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. In addition, not all the combinations of features described in the embodiments are essential for the solving means of the invention.

  FIG. 1 is a diagram illustrating an example of an external perspective view of a cylinder lock 10 according to the present embodiment. The cylinder lock 10 is a cylinder lock whose key code can be changed. Keys used to unlock or lock the cylinder lock 10 include a common key 50 that can reset the key code and a unique key 60 that cannot reset the key code. The cylinder lock 10 can be unlocked or locked with either the common key 50 or the unique key 60 according to a key code that can be unlocked.

  The common key 50 is a key having a key code common to a plurality of cylinder locks. The common key 50 is a low security key that is relatively easy to obtain. The unique key 60 is a key having a unique key code. The unique key 60 is a highly secure key that has a limited acquisition and is difficult to obtain illegally. In this embodiment, a cylinder lock whose key code can be changed will be described as an example. However, the cylinder lock may be a lock whose key code cannot be changed.

  The cylinder lock 10 includes an outer cylinder 20 and an inner cylinder 30. The outer cylinder 20 accommodates the inner cylinder 30 rotatably about the central axis. The inner cylinder 30 has a key hole 31 into which a key is inserted. The inner cylinder 30 rotates clockwise or counterclockwise about the central axis of the outer cylinder 20 in response to the key inserted into the keyhole 31 rotating clockwise or counterclockwise.

  The outer cylinder 20 has an opening 23 that exposes the keyhole 31. The outer cylinder 20 has a display window 26 on the front surface on which the opening 23 is formed. The display window 26 displays whether the key that can be unlocked is the common key 50, the unique key 60, or not in use.

  The cylinder lock 10 may be used to lock a container that holds an object inside. The cylinder lock 10 may be used to lock a housing that houses an electric circuit or an electronic circuit as a container. The cylinder lock 10 may be used to lock a gaming machine such as a pachinko machine or a slot machine, for example. The gaming machine includes, for example, a frame, a gaming machine main body, and a cover. The gaming machine is fixed to the island facility of the game hall through a frame. The cover covers the game board provided in the gaming machine main body so as to be visible.

  The cylinder lock 10 is provided, for example, in a mounting hole of the gaming machine main body, and locks the gaming machine main body with respect to the frame. The gaming machine main body is an example of a lock mounting member. The cylinder lock 10 further locks the cover to the gaming machine main body. For example, when the common key 50 or the unique key 60 is rotated clockwise with respect to the cylinder lock 10, the cylinder lock 10 changes the lock state of the gaming machine body to the frame to the unlocked state. Further, when the common key 50 or the unique key 60 is rotated counterclockwise with respect to the cylinder lock 10, the cylinder lock 10 changes the lock state of the cover to the gaming machine main body to the unlocked state.

  When the cylinder lock 10 is shipped, the key code of the unique key 60 at the installation location is often unknown. For example, a large number of gaming machines used for a plurality of holes may be transported by truck. In addition, a large number of gaming machines may be stored in a distribution warehouse and then distributed to each hall. In addition, the number of gaming machines installed in the hall may be changed. Thus, in many cases, it is not possible to determine in which hole a gaming machine will be installed until it is installed.

  Therefore, the cylinder lock 10 is shipped in a state in which the key code of the common key 50 is set as a key code that can be unlocked in order to ensure the convenience at the time of installation in the hall. By setting the key code of the common key 50 as a key code that can be unlocked, it is possible to easily perform an inspection before shipment of the gaming machine or an inspection after arrival.

  The manager of the hall resets the key code of the cylinder lock 10 using the common key 50 after the gaming machine is installed in the hall, and uses the unique key 60 unique to the hall to obtain the key code of the unique key 60. Is set to a lockable key code of the cylinder lock 10. Thereby, the cylinder lock 10 can be unlocked and locked only by the unique key 60 unique to the hall, and security can be enhanced.

  However, as described above, when the key code of the cylinder lock 10 provided in the gaming machine is set to the key code of the common key 50, there is a problem until the gaming machine is shipped and installed in the hall. There is a possibility that an illegal act is performed on the gaming machine using the common key 50 that can be obtained by a specific person. For example, there is a possibility that parts will be illegally exchanged for gaming machines stored in a distribution warehouse of gaming machines. Therefore, it is desirable to be able to grasp that the cylinder lock 10 has been unlocked illegally in a distribution process or the like.

  Therefore, the cylinder lock 10 according to the present embodiment has an unused state in the display window 26 of the unused cylinder lock 10 in order to grasp that the cylinder lock 10 has been illegally opened in a distribution process or the like. The first display mode indicating that is displayed. After the key is once inserted into the keyhole 31 and rotated, the display window 26 has a second display mode indicating that the unlockable key is the common key 50, or the unlockable key is the unique key. A third display mode indicating 60 is displayed.

  Once the key is inserted into the keyhole 31 and rotated, the first display mode is not displayed on the display window 26. By confirming whether or not the first display mode is displayed on the display window 26, it is possible to grasp that the cylinder lock 10 has been unlocked illegally in a distribution process or the like. Thereby, according to the cylinder lock 10 according to the present embodiment, if there is a possibility that the cylinder lock 10 is unlocked before installation, it is easy to grasp that the gaming machine may be cheated. it can. Therefore, it is possible to prevent the gaming machine from being used in the hall without noticing that the parts have been illegally exchanged for the gaming machine.

  FIG. 2 is a diagram illustrating an example of an exploded perspective view of the cylinder lock 10. The cylinder lock 10 includes an outer cylinder 20, an inner cylinder 30, a first divider 33, a second display board 34, a second divider 35, a first display board 36, a reset button 40, and a back cover 24.

  The outer cylinder 20 has an opening 23 and a display window 26 on the front surface. A mounting flange 22 is formed integrally with the outer cylinder 20. The cylinder lock 10 is installed in an attachment hole formed in a lock attachment member of a gaming machine or the like via an attachment flange 22.

  The inner cylinder 30 includes a keyhole 31. The inner cylinder 30 rotates around the central axis of the outer cylinder 20 according to the rotation of the key. The back cover 24 covers the back of the inner cylinder 30 with the output shaft 32 of the inner cylinder 30 exposed to the outside. The output shaft 32 is mechanically connected to an external locking unit. As the output shaft 32 rotates, the locking unit performs unlocking and locking of the lock target.

  The user can unlock or lock the cylinder lock 10 using the common key 50 or the unique key 60 with respect to the cylinder lock 10 set in the key code of the common key 50. When resetting the key code, for example, the user rotates the inner cylinder 30 to a reset position for resetting the key code by using the common key 50 while pressing the reset button 40 downward in the direction perpendicular to the central axis. Let After rotating the inner cylinder 30 to the reset position, the user inserts a new unique key 60 into the keyhole 31 and rotates the inner cylinder 30 again to the locking position, thereby renewing the key code of the cylinder lock 10. The unique key code of the unique key 60 can be changed.

  The display window 26 displays the first display mode when the common key 50 or the like is inserted into the keyhole 31 and is not rotated. After the common key 50 or the like is inserted into the keyhole 31 and rotated, the display window 26 displays the second display mode when the unlockable key is the common key 50. When the unlockable key is the unique key 60, the display window 26 displays the third display mode.

  The first display mode, the second display mode, and the third display mode may be any mode as long as the current state of the cylinder lock 10 can be visually confirmed. The first display mode, the second display mode, and the third display mode may be distinguished by differences in color, pattern, and the like, for example. For example, the first display mode may be indicated by “blue”, the second display mode may be indicated by “red”, and the third display mode may be indicated by “black”.

  The 1st display board 36 is accommodated in the outer cylinder 20 so that a movement is possible, and contains the 1st display area which shows a 1st display mode. The first display area may be the entire area of one surface of the first display board 36 or a partial area of the one surface. At least a part of the first display area of the first display panel 36 is visibly exposed from the display window 26 when the cylinder lock 10 is unused.

  When the first display area of the first display board 36 is not visibly exposed from the display window 26, a part of the second display board 34 is visibly exposed from the display window 26 and can be unlocked. Presents the type of the current key that has the code. The second display panel 34 has a second display area 37 showing a second display mode in which the unlockable key is the common key 50 and a third display showing a third display mode in which the unlockable key is the unique key 60. Region 38 is included.

  The first divider 33 is accommodated between the second display board 34 in the outer cylinder 20 and the inner cylinder 30 so as not to rotate. The first divider 33 prevents the second display board 34 from rotating as the inner cylinder 30 rotates. The second divider 35 is accommodated between the second display board 34 and the first display board 36 in the outer cylinder 20 so as not to rotate. The second divider 35 may be formed of a transparent or translucent light transmissive member. The second divider 35 prevents the first display board 36 from moving with the rotation of the second display board 34.

  When the cylinder lock 10 is not used, the display window 26 exposes at least a part of the first display area of the first display panel 36 so as to be visible. The display window 26 is not exposed to at least a part of the first display area of the first display board 36 and the key that can be unlocked is the common key 50. At least a part of the 34 second display areas 37 is exposed so as to be visible. The display window 26 does not expose at least a part of the first display area of the first display board 36 so that the key that can be unlocked is the unique key 60. At least a part of the third display area 38 is exposed so as to be visible.

  The second display board 34 has a notch 39. When the key inserted into the keyhole 31 is the common key 50, the notch 39 is interposed on the rotation path of the common key 50. Therefore, when the common key 50 is rotated, the second display board 34 is rotated through the notch 39. On the other hand, when the key inserted into the keyhole 31 is the unique key 60, the notch 39 is not interposed on the rotation path of the unique key 60. Therefore, even if the unique key 60 rotates, the second display board 34 does not rotate.

  FIG. 3 is a view of the cylinder lock 10 as viewed from the front. In FIG. 3, the entire first display panel 36 is drawn with a solid line. However, in reality, the first display panel 36 is housed in the outer cylinder 20, so that it cannot be seen from a place other than the display window 26. Moreover, although the inner wall 25 of the outer cylinder 20 is also shown by the solid line, it cannot be visually observed from the outside of the cylinder lock 10 in practice.

  The first display board 36 has an arc shape. The first display board 36 includes a first convex portion 361, a second convex portion 362, and a third convex portion 363 that protrude in a direction opposite to the direction of the central axis of the outer cylinder 20. The first display panel 36 further includes a fourth convex portion 364 that projects in the direction of the central axis of the outer cylinder 20. The 1st convex part 361 is an example of the 2nd part, and the 4th convex part 364 is an example of the 1st part.

  When the cylinder lock 10 is not used, the first display panel 36 is in the first position as shown on the right side of FIG. When the first display board 36 is in the first position, a part of the first display board 36 is exposed from the display window 26 so as to be visible. When the first display panel 36 is in the first position, the first convex portion 361 of the first display panel 36 is pushed by the inner wall 25 of the outer cylinder 20 and elastically deformed in the direction of the central axis of the keyhole 31. . Due to the elastic deformation, the fourth convex portion 364 of the first display board 36 is positioned on the rotation path of the common key 50 or the unique key 60. Therefore, when the common key 50 or the unique key 60 is inserted into the keyhole 31 and rotated clockwise, the first display board 36 is pushed through the fourth convex portion 364 and along the inner wall 25 of the outer cylinder 20. The first position is moved to the second position shown on the left side of FIG.

  The first display board 36 is pushed from the first position where at least a part of the first display area is exposed from the display window 26 by being pressed by the common key 50 or the unique key 60 inserted into the keyhole 31. At least a part of the first display area moves from the display window 26 to the second position where it is not visibly exposed and is not pressed by the key. The first display board 36 is pressed by the common key 50 or the unique key 60 as the common key 50 or the unique key 60 rotates, and moves from the first position to the second position. When the first display panel 36 is in the second position, it may not be exposed from the display window 26 so as to be visible. Further, since the first display panel 36 is not exposed from the display window 26 so as to be visible, the second display panel 34 is exposed from the display window 26 so as to be visible.

  When the first display panel 36 is in the first position, the outer cylinder 20 has a concave portion on the inner wall 25 corresponding to the second convex portion 362 and the third convex portion 363, and the second convex portion 362 and the third convex portion It may fit into the recess of the inner wall 25 of the outer cylinder 20 of the portion 363. Further, when the first display panel 36 is in the second position, the outer cylinder 20 has a concave portion on the inner wall 25 corresponding to the second convex portion 362 and the third convex portion 363, and the second convex portion 362 and the second convex portion 362. Three convex portions 363 may be fitted in the respective concave portions of the inner wall 25 of the outer cylinder 20. In addition, when the 1st display board 36 exists in the 1st position, when the 1st display board 36 exists in the recessed part of the inner wall 25 of the outer cylinder 20 in which the 2nd convex part 362 fits, the 1st display board 36 exists in the 2nd position. Three convex portions 363 may be fitted.

  The outer cylinder 20 has an inner wall concave portion 27 in the inner wall 25 into which the first convex portion 361 is fitted when the first display board 36 is in the second position. Therefore, when the first display board 36 is in the second position, the first projection 361 of the first display board 36 fits into the inner wall recess 27, so that the keyhole is more than in the case where the first display board 36 is in the first position. Elastic deformation in the direction of the central axis is reduced. Since the elastic deformation in the direction of the central axis of the keyhole 31 is smaller than when the first display panel 36 is in the first position, the first convex portion 361 of the first display panel 36 has the common key 50 or the unique key 60. Retreating from the rotation path. Therefore, when the first display board 36 is in the second position, even if the common key 50 or the unique key 60 is inserted into the keyhole 31 and rotated, the first display board 36 is not pushed through the fourth convex portion 364. , It does not rotate with the common key 50 or the unique key 60. That is, when the first display board 36 moves from the first position to the second position, the first display board 36 does not return to the first position but remains in the second position.

  As described above, a part of the first display panel 36 is exposed in the display window 26 of the cylinder lock 10 in the unused state as the first display mode indicating the unused state. Then, after the key is once inserted into the keyhole 31 and rotated, the first display panel 36 is not exposed to the display window 26, and the second display mode indicates that the key that can be unlocked is the common key 50. Alternatively, as a third display mode indicating that the unlockable key is the unique key 60, a part of the second display board 34 is exposed.

  Once the key is inserted into the keyhole 31 and rotated, the first display board 36 is not exposed from the display window 26 as the first display mode. Therefore, by confirming whether or not the first display panel 36 is visibly exposed as the first display mode on the display window 26, it is possible to grasp that the cylinder lock 10 has been unlocked illegally in a distribution process or the like. . Thereby, according to the cylinder lock 10 according to the present embodiment, if there is a possibility that the cylinder lock 10 is unlocked before installation, it is easy to grasp that the gaming machine may be cheated. it can. Therefore, it is possible to prevent the gaming machine from being used in the hall without noticing that the parts have been illegally exchanged for the gaming machine.

  In the present embodiment, after the first display board 36 is moved to the second position, it is not visibly exposed from the display window 26. However, after the first display panel 36 is moved to the second position, the first display panel 36 may not be moved from the display window 26 to a state where it cannot be completely seen. The first display board 36 may only move to such an extent that it is harder to see from the display window 26 than when it is in the first position. That is, even after the first display board 36 is moved to the second position, the first display board 36 and the second display area 37 or the third display area 38 included in the second display board 34 are displayed from the display window 26. The part may be exposed so as to be visible.

  FIG. 4 shows an example of a cross-sectional view of the cylinder lock 10 in a state where the insertion portion 52 of the common key 50 is inserted into the key hole 31. FIG. 5 shows an example of a cross-sectional view of the cylinder lock 10 in a state where the insertion portion 62 of the unique key 60 is inserted into the key hole 31. When the part 521 of the insertion part 52 of the common key 50 or the part 621 of the insertion part 62 of the unique key 60 pushes the fourth convex part 364 of the first display board 36 as shown in FIG. Moves along the inner wall of the outer cylinder 20 from the first position to the second position.

  As a method for confirming whether or not the cylinder lock 10 has been used, it is also conceivable to stick a seal called an unopened seal or a sealed seal so as to cover the keyhole 31. However, such seals may be relatively readily available. Therefore, after the cylinder lock 10 is opened, there is a possibility that a new seal is pasted to prevent unauthorized recognition. On the other hand, according to the cylinder lock 10 according to the present embodiment, when the first display panel 36 is moved to the second position, the first display board 36 is housed inside the outer cylinder 20, so that it is difficult to return to the original position. It is. Therefore, it is possible to make it more difficult to overlook fraudulent acts as compared to the seals as described above.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

  The order of execution of each process such as operations, procedures, steps, and stages in the apparatus, system, program, and method shown in the claims, the description, and the drawings is particularly “before” or “prior to”. It should be noted that the output can be realized in any order unless the output of the previous process is used in the subsequent process. Regarding the operation flow in the claims, the description, and the drawings, even if it is described using “first”, “next”, etc. for convenience, it means that it is essential to carry out in this order. It is not a thing.

10 cylinder lock 20 outer cylinder 22 mounting flange 23 opening 24 back cover 26 display window 27 inner wall recess 30 inner cylinder 31 keyhole 32 output shaft 33 first partition panel 34 second display panel 35 second partition panel 36 first display panel 37 first 2 display area 38 3rd display area 39 Notch part 40 Reset button 50 Common key 52 Insertion part 60 Unique key 62 Insertion part 361 1st convex part 362 2nd convex part 363 3rd convex part 364 4th convex part

Claims (8)

An outer cylinder having a display window;
An inner cylinder rotatably accommodated in the outer cylinder and having a keyhole;
A first display area that is movably accommodated in the outer cylinder and that shows a first display mode, and is pressed by a key inserted into the keyhole, so that at least a part of the first display area is released from the display window. A first display that moves from a first position that is visibly exposed to a second position where at least a portion of the first display area is not visibly exposed from the display window and is not pressed by the key. Cylinder lock with a board.   2. The cylinder lock according to claim 1, wherein the first display panel is pushed by the key as the key rotates and moves from the first position to the second position.   The cylinder lock according to claim 2, wherein the first display panel has an arc shape and moves from the first position to the second position along an inner wall of the outer cylinder. When the first display panel is in the first position, the first display panel is pushed by the inner wall of the outer cylinder and is elastically deformed in the direction of the central axis of the keyhole. The first part is located on the rotation path of the key;
When the first display panel is in the second position, the first display panel is less elastically deformed in the direction of the central axis of the keyhole than when the first display panel is in the first position. The cylinder lock according to claim 3, wherein the first portion of the key is retracted from a rotation path of the key. The outer cylinder has an inner wall recess formed in the inner wall,
When the first display panel is in the second position, the second portion of the first display panel is fitted into the inner wall recess so that the center of the keyhole is greater than when the first display panel is in the first position. The cylinder lock according to claim 4, wherein elastic deformation in the direction of the shaft is reduced.   The key code can be changed, and the variable key is a variable lock that can be unlocked with a common key that can reset the key code and a unique key that cannot reset the key code. Cylinder lock. A second display area that is arranged between the inner cylinder and the first display panel and shows a second display mode different from the first display mode, and is different from the first display mode and the second display mode. A second display panel including a third display area showing a third display mode;
The outer cylinder further accommodates the second display panel rotatably,
When the display window does not expose at least a part of the first display area so as to be visible and the key that can be unlocked is the common key, the display window visually checks at least a part of the second display area. If at least a part of the first display area is not exposed to be visible and the key that can be unlocked is the unique key, at least a part of the third display area is visually observed. The cylinder lock according to claim 6, wherein said cylinder lock is exposed. A partition board is further provided between the first display board and the second display board;
The cylinder lock according to claim 7, wherein the outer cylinder further accommodates the partition plate in a non-rotatable manner.

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