JP2007138484A - Code variable cylinder lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a code variable cylinder lock capable of being also attached to various devices aiming for locking. <P>SOLUTION: In a mounting flange 4 formed at one end of an insertion part 3 inserted into a mounting hole 2 formed at a mounting section 1 of each device aiming for locking, the flange is equipped with a cylinder case 5 fixed to the mounting section 1 and a plug 7 capable of changing an unlocking code by operation to a code variable operating member 6 exposed to a non-insertion section into the mounting hole 2 of the cylinder case 5, and inserted in the cylinder case 5 and the code variable operating member 6 is placed in a position stored in a straight column body domain making the mounting hole 2 as the bottom in front and behind of operation. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cord variable cylinder lock.

  As a code variable cylinder lock capable of changing the unlocking code without disassembling, the one described in Patent Document 1 is known. In this conventional example, the cylinder lock is formed by rotatably inserting an inner cylinder (plug) into an outer cylinder (cylinder case), and a mounting flange formed on the cylinder case is used for a locking target device such as a gaming machine. Fixed to the mounting part.

  At the end of the plug, a joint cam (joint part) that can be released by operating the reset button (code change operation member) is connected. With the joint part connected, the rotation angle of the plug is attached to the joint part. Determined between the flanges.

  A plurality of tumbler pairs whose meshing positions are variable are mounted on the plug, and the unlocking code is changed by changing the meshing positions of the tumbler pairs. The engagement position is changed by rotating the plug to a predetermined angle, and the rotation angle for changing the cord is set to be larger than the rotation angle during operation in order to prevent the code from being changed during normal operation. Is done.

To change the cord, once the cord change operation member is operated to disconnect the joint part that regulates the rotation angle of the plug to the angle during operation from the plug, the plug is rotated more than the rotation angle during operation. Done.
Japanese Patent Laid-Open No. 2005-232800

  However, in the above-described conventional example, since the cord changing operation member is arranged at a position away from the center of the cylinder case, it is not possible to secure the operation of the cord changing operation member or the accommodation space in the lock target device to be attached. In many cases, there is a drawback that it is extremely lacking in versatility.

  The present invention has been made to eliminate the above-described drawbacks, and an object of the present invention is to provide a cord variable cylinder lock that can be attached to various lock target devices.

According to the present invention, the object is
A cylinder case 5 fixed to the mounting portion 1 at a mounting flange 4 formed at one end of an insertion portion 3 inserted into the mounting hole 2 established in the mounting portion 1 of the locking target device;
A plug 7 inserted into the cylinder case 5 and capable of changing the unlocking cord by operating the cord changing operation member 6 exposed at the non-insertion portion of the cylinder case 5 to the mounting hole 2;
The cord changing operation member 6 is achieved by providing a cord variable cylinder lock disposed at a position where the cord changing operation member 6 is accommodated in a rectangular body region having the mounting hole 2 as a bottom surface before and after the operation.

  The code variable cylinder lock is formed by inserting a plug 7 containing a tumbler into the cylinder case 5 and inserting the insertion part 3 of the cylinder case 5 into the attachment hole 2 provided in the attachment part 1 of the device to be locked. The mounting portion 4 is fixed to the mounting portion 1 by a mounting flange 4 provided at the rear end of the insertion portion 3 (hereinafter, the insertion direction into the insertion hole of the cylinder case 5 is referred to as “front” in the present specification).

  In the mounted state, the cord changing operation member 6 is exposed at the rear portion of the mounting flange 4, and by operating the cord changing operation member 6, the cord 7 is changed to change the unlocking code from the normal operation mode. Transition to mode is possible.

  When the cylinder case 5 having the insertion portion 3 is attached, the attachment portion 1 is always provided with an attachment hole 2 through which the insertion portion 3 is inserted regardless of the type of the device to be locked. A moving space for inserting 5 is set. Therefore, before and after the operation, the cord changing operation member 6 is disposed so as to be positioned in a straight column body having the mounting hole 2 as a bottom surface before and after the operation, that is, in a column body region in which the bottom surface and the side surface are orthogonal to each other. In this case, the cord changing operation member 6 is positioned in the moving space, and interference with other parts can be surely prevented, thereby ensuring versatility.

  The arrangement of the cord changing operation member 6 suffices to be based on the straight column formed by the mounting hole 2, but is based on the straight column having the maximum cross-sectional area of the insertion portion 3 of the cylinder case 5 as the bottom. Therefore, it is possible to prevent interference with the periphery of the mounting portion 1 more reliably.

  The unlocking code in the variable-code cylinder lock is changed by changing the positional relationship of the tumbler with respect to the unlocking key 13, and the plug 7 driven by the same unlocking key 13 of the tumbler is changed by changing the tumbler. , That is, the unlockable key 13 that can be unlocked is changed.

  Various well-known tumblers that can be changed without disassembling the locking device can be used. For example, as shown later as an embodiment of the present invention, two plate-like shapes that mesh in the radial direction of the plug 7 are used. As shown in the above-described conventional example, a tumbler, or one formed by two plate-like tumblers meshing in the longitudinal direction of the plug 7, or further formed by a pin-like tumbler can be used.

  The former two who use the plate-shaped tumbler, one of the plate-shaped tumblers once moved to the mesh release position in the code change mode, the mesh position with the other plate-shaped tumbler according to the newly inserted unlocking key 13 Can be configured to change. On the other hand, in the case of using a pin-shaped tumbler, the adjustment pin is exchanged between the pin accommodating portion provided in advance on the inner peripheral wall of the cylinder case 5 and the tumbler insertion hole of the plug 7 in the cord change mode. 7 can be configured to change the effective length of the tumbler in the unit 7.

  The cord changing operation member 6 may be one in which the driving member to the meshing release position of the plate-shaped tumbler is directly operated to shift to the cord changing mode by operating the cord changing operation member 6, or The transition operation to the change mode may be enabled. As a configuration for directly shifting to the code change mode by operating the code change operation member 6, for example, a drive member such as a retractor that can be retracted to the inner peripheral wall of the cylinder case 5 in the lock rotation position, the unlock rotation position, or the like. This can be achieved by holding in the plug 7 by an appropriate stopper means and releasing the stopper means by operating the cord changing operation member 6.

  On the other hand, when the code change operation member 6 is used to enable a shift operation to the code change mode, the code change operation member 6 is moved to the code change mode after the operation on the code change operation member 6. This is performed by executing a predetermined operation that is permitted by the operation.

Such a code variable cylinder lock
The operation angle of the plug 7 is restricted to a predetermined operation range by a joint portion 9 connected via a clutch means 8 that can be connected / disconnected by the cord changing operation member 6,
It can be configured such that the code can be changed by a rotation operation to a predetermined code conversion rotation position that exceeds an operation range allowed during operation in a state where the connection of the joint portion 9 is released.

  In the above configuration, first, the joint portion 9 that restricts the rotation angle of the plug 7 to the rotation angle at the time of operation is disconnected by the operation of the cord changing operation member 6, and the rotation restriction of the plug 7 is released. In this state, the plug 7 can rotate to the code conversion rotation position exceeding the rotation angle during operation, and shifts to the code conversion mode at the code conversion rotation position.

  Further, when the mounting flange 4 is formed separately from the insertion portion 1 and is fixed by appropriate means such as caulking and screws, the mounting flange 4 is changed in accordance with the state of the mounting portion 1 of the device to be locked. It becomes possible to attach to various lock target apparatuses only by doing.

  According to the present invention, versatility can be improved because it can be attached to various lock target devices by simply replacing the mounting flange with the lock target device.

  FIG. 1 shows an embodiment of the present invention configured for a gaming machine such as a pachinko machine. In this embodiment, the cord variable cylinder lock has a cylinder case 5 and a plug 7 inserted into the cylinder case 5.

  As shown in FIGS. 1 and 2, a plug body 18 having a plurality of tumbler insertion grooves 18 a, 18 a... Is formed at the front end of the plug 7 and inserted into a case body 19 disposed at the front end of the cylinder case 5. Is done.

  A plate-shaped variable tumbler 16 and a plate-shaped lock tumbler 17 are inserted into each tumbler insertion groove 18 a of the plug body 18. The plate-like variable tumbler 16 and the plate-like lock tumbler 17 have meshing irregularities 16a and 17a, and are connected so as not to move relative to each other by meshing the meshing irregularities 16a and 17a.

  In addition, a side bar 20 and a retractor 21 are attached to the plug body 18 so as to be movable forward and backward in the direction of the center of rotation of the plug body 18. The side bar 20 and the retractor 21 are long bodies arranged over almost the entire length in the longitudinal direction of the plug body 18, one end abuts against the inner peripheral wall of the case body 19, and the other end in the tumbler insertion groove 18 a. The plug body 18 is disposed at a point-symmetrical position with respect to the rotation center of the plug body 18 in the exposed state.

  The plate-shaped lock tumbler 17 is mounted in such a posture that one side is in contact with the side wall 20 mounting side wall of the tumbler insertion groove 18a, and the side bar is in contact with the side wall sliding contact side to the tumbler insertion groove 18a. A lock release notch 17b into which one end of 20 can be fitted is cut out. On the other hand, the plate-shaped variable tumbler 16 is disposed so that one side is slidably in contact with the side wall on the retractor 21 mounting side of the tumbler insertion groove 18a, and the key insertion portion 3 of the plug main body 18 faces away from the slidable side. A cord forming protrusion 15 protruding inward is formed.

  When the plug main body 18 is in the initial rotation position, as shown in FIG. 2A, the side bar 20 urged in the protruding direction from the plug main body 18 by the urging means (not shown) is the inner peripheral wall of the case main body 19. , The rotation boundary between the plug body 18 and the case body 19 is closed. As a result, the rotation operation on the plug body 18 is restricted (locked state). When the unlocking key 13 is inserted into the key insertion part 3 from this state, the cord forming protrusion 15 is fitted into the cord forming groove 14 formed in the unlocking key 13. As shown in FIG. 2 (b), if the unlocking key 13 is authentic, the unlocking notch 17b of the plate-like lock tumbler 17 connected to the plate-like variable tumbler 16 faces the side bar 20, and in this state the plug When a rotational operation force is applied to the main body 18, the side bar 20 is retracted into the plug main body 18 to open the rotation boundary (unlocked state).

  When the plug body 18 is further rotated from this unlocked state to the cord change rotation angle (180 ° from the initial rotation position in the present embodiment), the plug body 18 is biased in the direction of protruding from the plug body 18 by a biasing means (not shown). As shown in FIG. 2 (c), the retractor 21 thus formed falls into the lock groove 19a. Due to the movement of the retractor 21 in the radial direction, the plate-shaped variable tumbler 16 in which the locking protrusion 16b is fitted in the guide groove 21a of the retractor 21 also moves in the radial direction, and is guided by the guide groove 18b formed in the tumbler insertion groove 18a. Separation from the plate-shaped lock tumbler 17 whose movement toward the retractor 21 is restricted, and the meshing irregularities 16a and 17a are disengaged.

  When the unlocking key 13 is inserted in this state and the unlocking key 13 having a new cord forming projection 15 is further inserted, only the plate-shaped variable tumbler 16 moves following the cord forming projection 15 and the plate-like lock is moved. The tumbler 17 maintains the state in which the side bar 20 is fitted in the lock release notch 17b. When the plug body 18 is returned to the initial rotation position from now on, the two tumblers mesh so that the unlocking notch 17b of the plate-like lock tumbler 17 faces the side bar 20 with the new unlocking key 13 inserted. The unlocking code change operation is completed.

  A case extension 22 is connected to the rear end of the case body 19, and a mounting flange 4 is fixed to the rear end of the case extension 22 to constitute a cylinder case 5. The case main body 19 and the case extension 22 are connected in the axial direction by a connecting pin 23 to constitute a cylindrical insertion portion 3 having substantially the same outer dimensions over the entire length.

  The mounting flange 4 is formed of a metal plate, and as shown in FIG. 3, the case extension 22 is formed by using an arc-shaped connecting hole 4b formed so as to surround the angle regulating hole 4a opened in the center. Connected to the rear end. In order to fix the mounting flange 4, a connecting leg 22 a that elastically locks in the connecting hole 4 b is projected from the rear end of the case extension 22. For example, as shown in FIG. 3 (d), the mounting flange 4 is appropriately selected and mounted when the locking target device is changed.

  On the other hand, a plate-like first plug extension 24 and a hook-like second plug extension 25 are connected to the rear end of the plug body 18 to form the plug 7. The second plug extension 25 is externally fitted with the joint 9 fitted in the joint receiving hole 22b opened at the rear end of the case extension 22 and prevented from coming off by the retaining ring 26. The joint portion 9 is connected to the second plug extension portion 25 in the rotational direction via the clutch means 8, and has a screw at the rear end that passes through the angle regulating hole 4 a of the mounting flange 4 and reaches the rear of the mounting flange 4. 27 is used to fix the lock plate 28 for transmitting the locking / unlocking operation force to the locking target device.

  As will be described later, the connection state of the second plug extension 25 and the joint 9 by the clutch means 8 is maintained during normal operation, and the unlocking key 13 causes the plug body 18 to reach the end of the rotation stroke during operation. When rotated, the first and second plug extension portions 25, the joint portion 9, and the lock plate 28 rotate to lock and unlock the device to be locked.

  As shown in FIG. 3C, the rotation angle of the plug 7 during operation is regulated by a pin-shaped angle regulating stopper 9a fixed to the joint portion 9 and a stopper wall 4c of the angle regulating hole 4a. As shown in FIGS. 3B and 2B, the angle restricting stopper 9a is rotated from the initial rotation position shown in FIGS. 3A and 2A to the stroke end position where the stopper wall 4c comes into contact. The corresponding state corresponds to the locking or unlocking rotation position of the device to be locked.

  As shown in FIGS. 1 and 4, the clutch means 8 includes an engagement element 10 that is inserted into an engagement element insertion hole 25 a formed in the second plug extension 25 and advances and retracts in the radial direction, and a direction in which the engagement element 10 protrudes. A compression spring 8a that is urged toward the end, and a locking notch 8b formed in the joint portion 9. The engaging element 10 has a stepped pin shape having a small diameter portion 10a at one end, and the second plug is formed by fitting the small diameter portion 10a to the locking notch 8b as shown in FIG. The extension part 25 and the joint part 9 are connected in the rotation direction. In the connected state, the boundary step between the large-diameter portion 10b and the small-diameter portion 10a of the engagement element 10 abuts against the inner peripheral wall surface of the joint section 9, and restricts the protrusion stroke of the engagement element 10.

  In order to release the connection between the joint portion 9 and the plug 7 by the clutch means 8, a cord changing operation member 6 is arranged. As shown in FIG. 1, the cord changing operation member 6 has a push-down piece 11 and an operation piece 12 that are bent in opposite directions at both ends of the slide piece 6 a and is formed in a crank shape in a side view. As shown in FIG. 4B, the cord changing operation member 6 is arranged with the slide piece 6a along the front surface of the mounting flange 4 described above, and the joint portion 9 is a joint established at the center of the slide piece 6a. It penetrates the insertion hole 6b.

  In order to make the cord changing operation member 6 movable in the moving direction of the engaging element 10, the joint insertion hole 6b is formed as a long hole extending in the moving direction of the engaging element 10, and further, the moving direction of the code changing operating member 6 is changed. In order to guide, the mounting flange 4 is formed with a guide folding portion 4d for guiding the side edge of the slide piece 6a (see FIG. 3B).

  As shown in FIG. 1, the cord changing operation member 6 formed as described above is in the attached state, the push-down piece 11 is on the upper surface of the engaging element 10, and the operation piece 12 is the button insertion opening 4e provided with the attachment flange 4. And protrudes from the rear surface of the mounting flange 4. In this state, the operation piece 12 does not interfere with a mounting hole 2 of the mounting portion 1 described later. In this embodiment, when the cylinder case 5 is viewed from the front, the operating piece 12 does not protrude from the outer periphery of the insertion portion 3. The operation piece 12 is arranged at a position where it does not protrude from the outer periphery of the insertion portion 3 in a state of being pushed down as will be described later.

  Therefore, in this embodiment, when the operation piece 12 of the cord changing operation member 6 is pushed down as shown in FIGS. 1 and 4C, the push-down piece 11 is engaged as shown in FIG. 4D. The engaging element 10 is pushed into the plug 7 by fitting into the stop notch 8b. When the engagement element 10 is pushed down into the plug 7, the engagement of the small diameter portion of the engagement element 10 with the engagement notch 8b is released. Thereafter, as shown in FIG. 9 can be idle.

  On the other hand, when the operation piece 12 of the cord changing operation member 6 that is non-rotatably coupled to the mounting flange 4 is fitted into the locking notch 8b of the engagement element 10, the rotation of the joint portion 9 with respect to the cylinder case 5 is restricted thereafter. The As shown in FIG. 4 (e), when the plug 7 idles with respect to the joint portion 9, the cord change operation member 6 is also retracted from the position where the engagement member 10 is retreated from the position where the cord change operation member 6 faces the push-down piece 11. Is released from the urging force of the compression spring 8a, and thereafter held in this position.

  When the cord changing operation member 6 is operated as described above, the restriction of the rotation angle by the joint portion 9 of the plug 7 is released, and thereafter, the plug 7 is rotated during operation (in this embodiment, the initial rotation It is possible to rotate to a code change rotation operation angle exceeding 135 ° on both sides from the position, and the unlocking code can be changed at the rotation position as described above.

  The cylinder lock configured as described above is fixed to the mounting portion 1 formed in the gaming machine using the mounting flange of the cylinder case 5. A mounting hole 2 is opened in the mounting portion 1, and the cylinder case 5 is inserted into the mounting hole 2 from the front end and then the mounting flange 4 is brought into contact with the back surface of the mounting portion 1. And is fixed by a bolt (not shown) that passes through the bolt insertion hole 4f (see FIG. 3) and is screwed into the mounting portion 1.

  As described above, the mounting flange 4 is appropriately selected and used in accordance with the mounting portion 1, and when the distance from the mounting portion 1 to the front end of the cylinder case 5 is different, as shown in FIG. By simply changing the second plug extension portion 22 and the second plug extension portion 25, the remaining parts can be used as they are.

It is sectional drawing which shows this invention. FIG. 2 is a cross-sectional view taken along line 2A-2A in FIG. 1, where (a) is a diagram illustrating an initial rotation position, (b) is a diagram illustrating a locking / unlocking rotation position with respect to a locking target device, and (c) is a diagram illustrating a code changing process. . 3A is a view taken in the direction of the arrow 3A in FIG. 1, (a) is a diagram showing an initial rotation position, (b) is a cross-sectional view taken along line 3B-3B in FIG. The figure which shows a lock | rock rotation position, (d) is a figure which shows the state which replaced the attachment flange. 4A and 4B are views showing the operation of the clutch means, in which FIG. 1A is a sectional view taken along the line 4A-4A in FIG. 1 in the operation mode, FIG. 1B is a sectional view taken along the line 4B-4B in FIG. 4A-4A cross-sectional view of FIG. 1 in a state where the member is pushed down, (d) is a cross-sectional view of line 4B-4B of FIG. 1 in a state where the cord changing operation member is pushed down, and (e) shows the middle of the cord changing operation. FIG. 4 is a sectional view taken along line 4A-4A in FIG. It is sectional drawing which shows the cylinder lock which changed the extension part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Attachment part 2 Attachment hole 3 Insertion part 4 Attachment flange 5 Cylinder case 6 Cord change operation member 7 Plug 8 Clutch means 9 Joint part 10 Engagement element 11 Pushing piece 12 Operation piece 13 Unlocking key 14 Code formation ditch | groove 15 Code formation protrusion 16 Plate-shaped variable tumbler 17 Plate-shaped lock tumbler

Claims (6)

A cylinder case fixed to the mounting portion at a mounting flange formed at one end of an insertion portion inserted into a mounting hole established in the mounting portion of the device to be locked;
A plug inserted into the cylinder case and capable of changing the unlocking code by operating the cord changing operation member exposed at the non-insertion portion to the mounting hole of the cylinder case;
A cord variable cylinder lock, wherein the cord changing operation member is disposed at a position where the cord changing operation member is accommodated in a rectangular body region having the mounting hole as a bottom surface before and after the operation. A cylinder case fixed to the mounting portion at a mounting flange formed at one end of an insertion portion inserted into a mounting hole established in the mounting portion of the device to be locked;
A plug inserted into the cylinder case and capable of changing the unlocking code by operating the cord changing operation member exposed at the non-insertion portion to the mounting hole of the cylinder case;
The mounting flange of the cylinder case is formed separately from the insertion portion and fixed by appropriate means,
And the code | cord | chord variable cylinder lock arrange | positioned in the position where a code | cord | chord change operation member is accommodated in the rectangular body area | region which uses the said attachment hole as a bottom face before and after operation. The operation angle of the plug is regulated to a predetermined operation range by a joint portion connected via a clutch means that can be connected / disconnected by the cord changing operation member,
The code variable cylinder lock according to claim 1 or 2, wherein the code can be changed by a rotation operation to a predetermined code conversion rotation position exceeding an operation range allowed during operation in a state where the joint portion is released. The joint portion is externally fitted to the rear end of the plug, and the clutch means has an engagement member that is urged toward the engagement position with the joint portion and is accommodated in the plug so as to be freely advanced and retracted.
And the cord changing operation member is formed in a crank shape in a side view by bending a push-down piece that pushes down the engaging element at one end, and an operation piece at the other end.
The cord variable cylinder lock according to claim 1, 2, or 3, wherein the push-down piece and the operation piece are disposed substantially symmetrically with respect to an axial center of the cylinder case.   The cord variable cylinder lock according to any one of claims 1 to 4, wherein the cylinder case and the plug are formed by detachably connecting an extension part to the main body part. The plug includes a plate-shaped variable tumbler having a cord-forming projection that fits into a code-forming groove formed in the unlocking key, and a variable engagement position with the plate-shaped variable tumbler. A plate-shaped lock tumbler that prohibits and allows idling of the plug with respect to the cylinder case,
The cord variable cylinder lock according to any one of claims 1 to 5, wherein the plate-like variable tumbler is capable of changing a meshing position with the plate-like lock tumbler at a cord conversion rotation position.

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