JP6080348B2 - Lock device - Google Patents

Description

  The present invention relates to a lock device.

  As a lock device for locking a storage such as a cabinet, a storage wagon, or a locker, a device having a dial lock and an operation knob is widely used (see, for example, Patent Documents 1 and 2). A stopper or the like that engages with a counterpart receiving tool or the like is connected to the operation knob. The locking object such as a storage can be locked by operating the stopper in conjunction with the closing operation and engaging the stopper with the receiving tool.

JP 2010-281160 A JP 2011-12485 A

  However, in the conventional lock device, the operation knob cannot be closed unless the dial lock is unlocked, that is, the dial of the dial lock is aligned with the unlock code (password). there were. If it does so, when locking a locking target object, there exists a possibility that another person may peep at an unlocking code | symbol, and there exists a possibility that a locking target object may be unlocked illegally.

  The present invention has been made in view of the above circumstances, and relates to a lock device that can lock an object to be locked by performing a closing operation of an operation unit even when dials of a dial lock are not aligned with an unlocking code. The purpose is to provide technology.

  In order to achieve the above object, the present invention is provided with a dial lock having a dial and a mating engagement portion that can be freely engaged and disengaged, and locks an object to be locked by engaging with the engagement portion. The lock-side engaging member is rotatable between a predetermined unlocking position and a locking position, and when in the locking position, the lock-side engaging member is engaged with the engaging portion, The operation portion for releasing the lock-side engagement member from the engagement portion when in the unlocked position, the swing arm provided swingably in the lock box, and the dial are aligned with the unlock code. The swinging arm is held in a predetermined first position when the dial is in contact, and the swinging arm is swung from the first position to the predetermined second position when the dial is not aligned with the unlocking code. The posture changing means that presses the swinging arm and the pivot in conjunction with the operation unit The swinging member swinging from the first posture to the second posture by contacting the swinging arm except when the operating portion is in the locked position. When the swinging restricting part to be controlled and the swinging arm are engaged with the swinging arm when the swinging arm is in the second posture, the pivoting operation toward the unlocking position is restricted, and the swinging arm is There is provided a lock device comprising: a rotation member having a rotation restricting portion that is disengaged from the swing arm when in the first posture.

In the configuration described above, examples of the locking object include a storage such as a storage wagon, a cabinet, and a locker. The lock-side engagement member of the lock-lock device locks the lock target object by engaging with the mating engagement portion, and unlocks the lock target object by releasing the engagement. Here, the lock apparatus is installed on, for example, a door of a storage, a drawer, or the like. In this case, the mating side engaging portion with which the lock-side engaging member is engaged or disengaged is, for example, the main body side (for example, the frame side) of the storage
A latch, a receiving member, etc. provided in can be illustrated.

  According to the above configuration, when the posture (swing angle) of the swing arm is in the first posture, the swing arm and the rotation restricting portion are not engaged with each other in the direction from the lock position toward the unlock position. The pivoting operation of the pivoting member and the operation unit linked with the pivoting member is permitted. On the other hand, when the posture of the swing arm is in the second posture, the swing arm and the rotation restricting portion are engaged, and the rotation member in the direction from the locking position toward the unlocking position and the operation portion interlocked therewith Is restricted (restricted).

  When the dial is aligned with the unlocking code, the swinging arm is held in the first posture. When the swing arm is in the first posture, neither the closing operation of the operation unit from the unlocking position toward the locking position nor the opening operation from the locking position toward the unlocking position is restricted. . Here, when the dial display aligned with the unlocking code is once broken and the operation unit is closed, the swing arm is pressed by the posture changing means when the dial is not aligned with the unlocking code. Accordingly, the swing arm tries to change the posture from the first posture to the second posture. However, since the operation portion is in the unlocked position, the swing arm is held in the first posture by contact with the swing restriction portion. Therefore, in this state, the rotation of the operation unit in the direction of the locking position is not restricted, and the closing operation can be performed. Since the swing arm does not assume the second posture until the operation unit reaches the lock position, the operation unit is rotated halfway from the unlock position toward the lock position and then returned to the unlock position again. Is also possible.

  When the operation unit is rotated to the locking position, the swing arm is changed to the second posture by the pressure from the posture changing means. The opening operation is regulated. After that, by aligning the dial of the dial lock with the unlocking code, the swing arm is changed from the second position to the first position, and the engagement between the swing arm and the rotation restricting portion is released. As a result, the opening operation of the operation unit becomes possible. As described above, according to this configuration, when the lock target is locked by closing the operation unit, the lock target can be locked regardless of whether the dial display is aligned with the unlock code or not. It is possible to lock objects. In particular, unlike the case where the latter operation is performed, there is no need to lock the locking object with the unlocking code displayed. For this reason, the unlocking code is not looked into by another person at the time of locking, and there is no possibility that the object to be locked is unlocked illegally by another person. Also, if the operation unit is operated to the locked position while the dial lock is locked, the opening operation of the operation unit is restricted when the operation unit reaches the locked position. Unless they are aligned, the locked objects can be held in a locked state.

  As a more specific aspect according to the present invention, the dial lock is supported in a rotatable manner with respect to the dial shaft supported in the lock box, and the dial shaft is rotated around the dial shaft. A wheel member that is movably supported and provided with a recess in a part of the circumferential direction. The posture changing means is swingably supported in the lock box, and is provided on a swing member that swingably supports the swing arm, and an upper surface of the swing member. , And a biasing means provided on the swinging member and biasing the swinging arm downward. And a locking piece that is provided on the swing arm and prevents the swing arm from swinging downward relative to the swing member. In this case, the swinging arm is held in the first posture in a state in which the convex portion and the concave portion are fitted, the fitting state between the convex portion and the concave portion is released, and the biasing is performed. The swing arm may be configured to be changed from the first posture to the second posture by urging the swing arm downward by the means.

According to the present invention, even when the dial of the dial lock is not aligned with the unlocking code, the locking object can be locked by performing the closing operation of the operation unit.

FIG. 2 is a top view of the lock device according to the first embodiment. It is a bottom view of the lock device according to the first embodiment. It is a longitudinal cross-sectional view of the lock apparatus which concerns on Embodiment 1. FIG. It is the figure which looked at the inside of the locksmith apparatus concerning Embodiment 1 from the upper surface side. It is the schematic which shows an emergency unlocking key. It is the schematic which shows an inner cylinder exchange key. It is a figure which shows the state before inserting an emergency unlocking key in the keyhole of an inner cylinder. It is a figure which shows the state which inserted the emergency unlocking key in the keyhole of the inner cylinder. It is a side view of an inner cylinder. It is AA arrow sectional drawing of FIG. It is BB arrow sectional drawing of FIG. It is the elements on larger scale of the principal part of a dial lock. It is a figure which shows schematic structure of a rocking | fluctuation plate. It is explanatory drawing explaining the state of the rocking | swiveling plate and inner wheel when a dial lock is an unlocked state. It is explanatory drawing explaining the state of the rocking | swiveling plate 34 and the inner wheel 33 when a dial lock is a locking state. It is a bottom view in the state where a cover member was removed in a lock device. It is a bottom view in the state where a cover member was removed in a lock device. It is explanatory drawing explaining the relationship between a disk plate and a rocking | fluctuating arm. It is explanatory drawing explaining the relationship between a disk plate and a rocking | fluctuating arm. It is C arrow ending figure of FIG. It is a D arrow line view of FIG. It is explanatory drawing for demonstrating the mechanism relevant to a number search. It is EE arrow sectional drawing of FIG. It is explanatory drawing explaining operation | movement of a number change plate. It is explanatory drawing explaining operation | movement of a number change plate. It is explanatory drawing explaining operation | movement of a number change plate. It is a figure which shows the state before inserting an inner cylinder exchange key in the keyhole of an inner cylinder. It is a figure which shows the state which inserted the inner cylinder exchange key in the keyhole of the inner cylinder. It is a figure which shows the cross-section of a cylinder lock in the state before inserting an inner cylinder exchange key in the keyhole of an inner cylinder. It is a figure which shows the cross-section of a cylinder lock in the state which inserted the inner cylinder exchange key in the key hole of the inner cylinder. It is a figure which shows the state which has pulled out the inner cylinder from the sleeve. It is a bottom view in the state where a cover member was removed in a lock device concerning a modification. It is a top view of the lock apparatus which concerns on a modification.

  DETAILED DESCRIPTION Exemplary embodiments for carrying out the present invention will be described in detail below with reference to the drawings. Note that the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are intended to limit the technical scope of the invention to those unless otherwise specified. is not.

<Embodiment 1>
[Structure of lock device]
FIG. 1 is a top view (front view) of the lock device 1 according to the first embodiment. FIG. 2 is a bottom view (rear view) of the lock apparatus 1 according to the first embodiment. FIG. 3 is a vertical (vertical) cross-sectional view of the lock apparatus 1 according to the first embodiment. FIG. 4 is a view of the inside of the lock apparatus 1 according to the first embodiment as viewed from the upper surface side (front side).

  The lock device 1 includes a lock box (housing) 2, a dial lock 3, an inner cylinder exchangeable cylinder lock (hereinafter simply referred to as “cylinder lock”) 4, a stopper 5, an operation unit 60 including an operation knob 6, and the like. Prepare. The lock device 1 is applied to a storage such as an office storage wagon, cabinet, locker, etc., for example, and is firmly attached to a drawer, a door or the like of these objects to be locked. In this embodiment, the case where the lock target is a storage wagon will be described as an example. However, the lock target by the lock lock device 1 is not limited to the above example. In the present embodiment, these storages are an example of the locking object according to the present invention. Further, the lock device 1 may be provided on a door body such as an opening door or a sliding door of a storage, a drawer, or the like, and lock them.

  The lock box 2 is a housing that houses the dial lock 3 and the cylinder lock 4, and includes an upper case 21, a lower case 22, a cover member 23, and the like. The upper case 21 and the lower case 22 form an accommodation space for the dial lock 3 and the like by fitting the side plates with each other. A cover member 23 is attached to the lower portion of the lower case 22, and the bottom surface of the lower case 22 is covered with the cover member 23 in a normal use state.

The lock box 2 (lock device 1) is attached to, for example, a drawer of a storage wagon that is an object to be locked, and a latch that engages and disengages a stopper 5 on the main body side (frame side) of the storage wagon that is a counterpart. (The mating part on the other side) is installed. The latch automatically anchors the storage wagon drawer when it is moved to the closed position. In the present embodiment, the stopper 5 corresponds to the lock-side engaging member. The stopper 5 performs a sliding operation when a user (user) of the lock device 1 operates the operation knob 6 of the operation unit 60. By this sliding operation, the stopper 5 slides between an engagement position where the stopper 5 is engaged with the latch of the storage wagon and an engagement release position where the engagement is released. In the state where the stopper 5 of the lock device 1 is moved to the engagement position and engaged with the latch on the counterpart side (main body side of the storage wagon), the opening of the storage wagon drawer is restricted. That is, the storage wagon is locked. On the other hand, when the operation knob 6 is operated from this locked state to slide the stopper 5 to the disengagement position, the stopper 5 is released from the latch. As a result, the drawer of the storage wagon can be opened.

  On the upper surface of the upper case 21, characters “OPEN” (open) and “CLOSE” (closed) are displayed (printed, engraved, etc.). The user rotates (rotates) the operation knob 6 to adjust the position of the operation knob 6 to either “OPEN” or “CLOSE”. When the operation knob 6 is set to the “OPEN” position, the stopper 5 is held at the “engagement release position”, so that the object to be locked is unlocked. On the other hand, when the operation knob 6 is set to the “CLOSE” position, the stopper 5 is held at the “engagement position”, thereby locking the object to be locked.

  The dial lock 3 has a plurality of dials 31, and the locked state and the unlocked state (unlocked state) are switched by a dial operation. In the present embodiment, the combination of the four dials 31 is unlocked when aligned with the set password (unlocked code), and is locked when not aligned with the password. Note that the personal identification number for unlocking the dial lock 3 can be changed. The detailed structure of the dial lock 3 will be described later. The number of dials 31 may be changed as appropriate according to the embodiment.

The cylinder lock 4 is an inner cylinder exchange type cylinder lock in which the inner cylinder can be replaced. When the user forgets the personal identification number of the dial lock 3, the cylinder lock 4 uses the emergency unlocking key described later to unlock the storage wagon. The cylinder lock 4 includes a sleeve 41 that is an outer cylinder member and an inner cylinder 42 that is a lock mechanism. The sleeve (outer cylinder) 41 is rotatably attached to the upper case 21. Further, an inner cylinder 42 is rotatably mounted on the inner peripheral surface side of the sleeve 41. Further, an operation portion 60 having a cylindrical shape is integrally attached to the outer peripheral side of the sleeve 41. At the upper end of the operation unit 60, an operation knob 6 is provided for a user to pinch to rotate the operation unit 60. The user can rotate the operation unit 60 and the sleeve 41 with respect to the lock box 2 by rotating the operation knob 6.

  FIG. 5A is a schematic diagram showing the emergency unlocking key 7, and FIG. 5B is a schematic diagram showing the inner cylinder exchange key 8. The emergency unlocking key 7 has a gripping portion 71 and an insertion portion 72, and key grooves 9 </ b> A are carved on the upper and lower surfaces of the insertion portion 72. Similarly, the inner cylinder exchange key 8 has a gripping portion 81 and an insertion portion 82, and key grooves are carved on the upper and lower surfaces of the insertion portion 82. The insertion part 82 of the inner cylinder exchange key 8 is longer than the insertion part 72 of the emergency unlocking key 7. The insertion portion 82 of the inner cylinder exchange key 8 is formed with a key groove 9A that is common to the emergency unlocking key 7 except for the tip. Hereinafter, the keyway 9A is referred to as a “first keyway”. The common keyway means that the shape and depth of the keyway are common. Further, the inner cylinder exchange key 8 has a second keyway 9 </ b> B formed at the distal end portion of the insertion portion 82. The second keyway 9B is not provided in the insertion part 72 of the emergency unlocking key 7. The numbers of the first keyway 9A and the second keyway 9B are preferably determined as appropriate according to the embodiment.

  FIG. 6A is a diagram showing a state before the emergency unlocking key 7 is inserted into the keyhole of the inner cylinder 42. FIG. 6B is a view showing a state where the emergency unlocking key 7 is inserted into the key hole of the inner cylinder 42. FIG. 7 is a side view of the inner cylinder 42. 8 is a cross-sectional view taken along arrow AA in FIG. FIG. 8 shows a cross-sectional structure of the cylinder lock 4 in the longitudinal direction. 9 is a cross-sectional view taken along the line BB in FIG. As shown in FIGS. 6A and 6B, a key hole 420 into which the emergency unlocking key 7 and the inner cylinder replacement key 8 can be inserted is formed on the upper end surface of the inner cylinder 42.

  A slot 421 is formed in the inner cylinder 42 at a keyway reading position corresponding to the first keyway 9A of the emergency unlocking key 7 (inner cylinder exchange key 8) and the second keyway 9B of the inner cylinder exchange key 8. Yes. The slot 421 penetrates the inner cylinder 42 in the radial direction. A tumbler 422 and a spring 423 that biases the tumbler 422 are disposed inside each slot 421. The spring 423 biases the tumbler 422 to be pushed out of the slot 421 through the opening of the slot 421.

  As shown in FIG. 9, the tumbler 422 has a key insertion hole 424 through which the insertion portion 72 (82) of the emergency unlocking key 7 (inner cylinder exchange key 8) can be inserted, and a protrusion 425 pressed by the spring 423. Have. In a state where the emergency unlocking key 7 (inner cylinder exchange key 8) is not inserted into the key hole 420, the projection 425 is biased in the outer circumferential direction by the spring 423, so that the tumbler 422 is directed toward the opening of the slot 421. Move. Then, the movement of the tumbler 422 is restricted by the protrusion 425 engaging with the edge of the slot 421. At that time, as shown in FIGS. 6A, 8, 9, etc., the tip of the tumbler 422 protrudes outward from the outer peripheral surface of the inner cylinder 42.

Among the tumblers 422 of the inner cylinder 42, the tumbler disposed at the position farthest from the keyhole 420 is referred to as a “stopper tumbler” and is denoted by reference numeral 422A (see FIG. 6B). Other tumblers are referred to as “general tumblers”. As shown in FIG. 9, a locking groove 411 that engages with the protruding portion of the general tumbler 422 protruding from the outer peripheral surface of the inner cylinder 42 is formed on the inner peripheral surface of the sleeve 41. The width of the locking groove 411 is the same as or slightly larger than the width of the general tumbler 422. In a state where the protruding portion of the general tumbler 422 is locked in the locking groove 411, the rotation of the inner cylinder 42 is restricted (restricted). On the inner peripheral surface of the sleeve 41, a pair of locking grooves 411 are formed at positions that are directly opposite (facing) across the accommodation space of the inner cylinder 42. Here, when the emergency unlocking key 7 is inserted into the keyhole 420, the insertion portion 72 is inserted through the key insertion hole 424 of the general tumbler 422. Then, the general tumbler 422 lifted up to the height locked in the locking groove 411 of the sleeve 41 by the spring 423 is drawn into the slot 421. As a result, the engagement between the general tumbler 422 and the locking groove 411 is released. When the engagement between all the general tumblers 422 and the locking grooves 411 is released, the engagement of the inner cylinder 42 with respect to the sleeve 41 is released, and the inner cylinder 42 can rotate relative to the sleeve 41.

  The engagement between the general tumbler 422 and the locking groove 411 is released only when the regular emergency unlocking key 7 is used. If the depth of the first keyway 9A is not appropriate, the general tumbler 422 cannot be completely drawn into the slot 421, and the engagement between the general tumbler 422 and the locking groove 411 is not released. In this case, the rotation of the inner cylinder 42 with respect to the sleeve 41 is restricted (restricted). As shown in FIG. 6B, when the emergency unlocking key 7 is inserted into the keyhole 420, the stopper tumbler 422 </ b> A is still kept protruding from the inner cylinder 42. This is because even if the emergency unlocking key 7 is inserted into the key hole 420, the insertion portion 82 does not reach the key insertion hole 424 of the stopper tumbler 422 A, and the stopper tumbler 422 A is not pulled into the slot 421.

  A configuration related to the cylinder lock 4 will be described with reference to FIGS. FIG. 4 shows the internal structure of the lock lock device 1 with the upper case 21, the cylinder lock 4 (the sleeve 41, the inner cylinder 42), and the operation unit 60 removed. With respect to the inner cylinder 42, the side where the keyhole 420 is provided is defined as the top side, and the opposite side is defined as the bottom side. The drive shaft 11 is connected to the bottom of the inner cylinder 42 via the roller member 10 so as to be fitted. Thereby, when the inner cylinder 42 rotates, the drive shaft 11 also rotates integrally with the inner cylinder 42 via the roller member 10. On the other hand, on the bottom side of the sleeve 41 and the operation unit 60, a flat disk plate 12 having a larger outline than these is connected in a state of being fitted to the sleeve 41 and the operation unit 60. When the sleeve 41 and the operation unit 60 rotate, the disk plate 12 rotates together with the sleeve 41 and the operation unit 60 in conjunction with the rotation. In the present embodiment, the disk plate 12 corresponds to a rotating member.

  Next, the detailed structure of the dial lock 3 will be described. FIG. 10 is a partially enlarged view of the main part of the dial lock 3. The dial lock 3 includes a dial shaft 32 supported by the upper case 21, four inner wheels 33 (wheel members) that are rotatably fitted (supported) to the dial shaft 32 (dial shaft), and the inner wheels 33. A dial 31 or the like externally fitted (supported) is rotatably provided. A clutch (not shown) is interposed between the dial 31 and the inner wheel 33 so that the dial 31 and the inner wheel 33 are engaged with each other. For example, the clutch may be a gear provided on each of the dial 31 side and the inner wheel 33 side.

  On the outer peripheral surface of the dial 31, for example, codes (numerals) from 0 to 9 are displayed. Of course, the code displayed on the dial 31 may be, for example, an alphabet other than numerals. As shown in FIG. 10, a window hole 211 is formed on the upper surface of the upper case 21 at a position facing each dial 31. The user rotates the dial 31 partially exposed to the outside of the upper case 21 through the window hole 211. Hereinafter, the number displayed on the dial 31 refers to the number appearing in the window hole 211. The dial lock 4 is unlocked when the display of the dial 31 is aligned with the password (unlocked code) by the user, and the dial lock 4 is locked when the display of the dial 31 is broken from the password.

Of the end portions of the dial shaft 32 related to the dial lock 3, one end on the cylinder lock 4 side is defined as the distal end side, and the opposite side is defined as the proximal end side. A spring 35 is provided on the base end side of the dial shaft 32. The spring 35 is sandwiched between the side surface of the upper case 21 and the inner wheel 33 provided at a position closest to the base end of the dial shaft 32. As a result, each inner wheel 33 is biased from the proximal end side of the dial shaft 32 toward the distal end side.

The dial lock 3 includes a swing plate 34 (swing member) that is driven to swing according to the display state of each dial 31 (see FIG. 4). FIG. 11 is a diagram illustrating a schematic configuration of the swing plate 34 according to the first embodiment. FIG. 12 is an explanatory diagram for explaining the state of the swing plate 34 and the inner wheel 33 when the dial lock 3 is in the unlocked state. FIG. 13 is an explanatory diagram for explaining the state of the swing plate 34 and the inner wheel 33 when the dial lock 3 is in the locked state. 12 and 13 are sectional views showing a state in which the distal end side is viewed from the proximal end side of the dial shaft 32.

  The swing plate 34 is a ladder-type frame plate member, and a swing shaft portion 341 is formed on one of the long sides. The lock box 2 supports the swing shaft portion 341 so as to be swingable. Specifically, a bearing for swingably supporting the swing shaft portion 341 of the swing plate 34 is formed on the upper case 21 side. A pair of opposing long sides including the swinging shaft portion 341 are connected to each other by a connecting member 342 along the short side direction. On the upper surface of the central portion of each connecting member 342, a convex portion 342A that is raised from the other portion is formed. In addition, the lower case 22 is provided with a pedestal 36 on which a spring 35 for urging the swing plate 34 upward (upper case 21 side) is mounted. The spring 35 is attached to the pedestal 36 in a contracted state. When the elastic restoring force of the spring 35 acts on the lower surface of the connecting member 342, the swing plate 34 swings upward with the swing shaft portion 341 as the swing shaft. On the upper part of each connecting member 342, an inner wheel 33 fitted to the dial shaft 32 is disposed. Therefore, the upward swing of the swing plate 34 is limited when the upper surface of each connecting member 342 contacts the inner wheel 33. In the present specification, the vertical direction defines the direction in which the window hole 211 is provided in the lock box 2 as the upper side and the direction in which the cover member 23 is provided as the lower side.

  As shown in FIGS. 12 and 13, a recess 331 is formed in a part of the inner wheel 33 in the circumferential direction. When the dial 31 corresponding to each inner wheel 33 (the number displayed on the window hole 211) matches the password, the inner wheel so that the convex portion 342A of the connecting member 342 fits into the concave portion 331 of the inner wheel 33. The relative rotation angles of the dial 33 and the dial 31 with respect to the dial shaft 32 are adjusted. When the concave portion 331 of the inner wheel 33 and the convex portion 342 of the connecting member 342 are in a fitted state, the posture (swinging angle) of the swinging plate 34 is held substantially horizontal (see FIG. 12).

  On the other hand, when the dial 31 deviates from the password, the stop angle of the inner wheel 33 corresponding to the dial 31 is changed from the state shown in FIG. Accordingly, the position of the concave portion 331 of the inner wheel 33 is also changed by rotation, so that the fitted state between the convex portion 342A of the connecting member 342 and the concave portion 331 is released. As a result, the swing plate 34 is pushed downward by the inner wheel 33, and the free end 347 side of the swing plate 34 is held in a posture inclined downward from the swing shaft portion 341 side (see FIG. 13).

Hereinafter, the dial 31 in the dial lock 3 is referred to as a first dial to a fourth dial from the left side. The personal identification number of the dial lock 3 is set by, for example, a 4-digit number. For example, when the password is set to “4185”, the concave portion 331 of the inner wheel 33 corresponding to the first dial is not the convex portion of the connecting member 342 only when the first dial displays “4”. The portion 342 is fitted. Similarly, the second dial is “1” and the third dial is “
8 ”and only when the fourth dial displays“ 5 ”, the recesses 331 of the inner wheel 33 corresponding to the respective dials 31 are engaged with the projections 342 of the connecting member 342.

  The swing plate 34 has a swing arm 343 that can swing with respect to the swing shaft portion 341. The swing arm 343 is pivotally supported at one end of the swing shaft portion 341, and can swing freely using the swing shaft portion 341 as a swing shaft. On the upper surface of the connecting member 342 adjacent to the swing arm 343, a pressing piece 345 for mounting the spring 344 is projected. The pressing piece 345 has a substantially L shape, and is held between the upper surface of the connecting member 342 adjacent to the swing arm 343 and the pressing piece 345 with the spring 344 contracted. Thereby, the swing arm 343 is biased downward by the spring 344 (biasing means).

  On the upper surface of the swing arm 343, a horizontal stopper 346 (locking piece) that is a flat piece is provided. The horizontal stopper 346 protrudes from the swing arm 343 toward the adjacent connecting member 342. Accordingly, when the swing arm 343 is biased downward by the spring 344, the horizontal stopper 346 is connected to the connection member 342 when the upper surface of the swing arm 343 and the upper surface of the adjacent connection member 342 are flush with each other. It abuts on the upper surface. As a result, swinging further downward of the swing arm 343 is limited. That is, the horizontal stopper 346 restricts the swing arm 343 from swinging below the connecting member 342. Note that a displacement preventing member (not shown) of the spring 344 is formed on the upper surface of the swing arm 343, and prevents the spring 344 from coming off from the upper surface of the swing arm 343.

<Operation of lock device>
Next, various operations of the lock lock device 1 will be described.
[Locking objects to be locked]
In order to lock the object to be locked, the operation knob 6 of the operation unit 60 is rotated from the “OPEN” position (predetermined unlocking position) to the “CLOSE” position (predetermined locking position). Hereinafter, the operation of the operation knob 6 is referred to as “closing operation”. The operation of rotating the operation knob 6 from “CLOSE” to the “OPEN” display position is referred to as “open operation”. In the lock device 1 according to the present embodiment, when the object to be locked is locked, the operation knob 6 is closed regardless of whether the dial display of the dial lock 3 is aligned with the code number or not. It has a structure that can be performed.

(Knob closing operation when the dial lock is unlocked)
First, the closing operation of the operation knob 6 in a state where the dial lock 3 is unlocked will be described. The unlocked state of the dial lock 3 is a state where the dial 31 is aligned with the set password. In this case, as shown in FIG. 12, the concave portions 331 of the inner wheel 33 corresponding to all the dials 31 and the convex portions 342A of the connecting member 342 are fitted together, and the posture of the swing plate 34 is held in a horizontal posture. The Further, when the swing arm 343 is also in the same horizontal posture as the swing plate 34, the horizontal stopper 346 comes into contact with the upper surface of the swing plate 34 (the connecting member 342). Therefore, in the state where the dial lock 3 is unlocked, the postures of the swing plate 34 and the swing arm 343 are maintained in a horizontal state (first posture). In this state, the user performs the closing operation by rotating the operation knob 6 from the OPEN position to the CLOSE position by approximately 90 ° counterclockwise in this embodiment. Here, since the emergency unlocking key 7 is not inserted into the key hole 420 of the inner cylinder 42, the relative rotation of the inner cylinder 42 is restricted by engaging the sleeve 41. Therefore, the drive shaft 11 is rotationally driven as the user closes the operation knob 6.

14 and 15 are bottom views (rear views) of the lock device 1 with the cover member 23 removed. FIG. 14 shows a state in which the operation knob 6 is in the OPEN position and the lock target (for example, the drawer of the storage wagon) is unlocked. FIG. 15 shows a state in which the operation knob 6 is in the CLOSE position and the lock target is locked. The drive shaft 11 has a circular shape, and the bottom surface 110 of the drive shaft 11 is exposed by passing through the bottom surface of the lower case 22. In the vicinity of the edge portion of the bottom surface 110, a columnar protrusion 111 protruding perpendicularly to the bottom surface 110 is attached.

  The stopper 5 includes a base portion 51 disposed along the bottom surface of the lower case 22, a rising portion 52 rising vertically from the base portion 51, a tip engaging portion 53 provided at the tip of the rising portion 52, and the like. The distal end engaging portion 53 is engaged with or disengaged from a mating engaging portion, for example, a latch provided on a frame body of the storage wagon, thereby realizing locking and unlocking of the storage wagon. An elliptical long hole (long hole) 54 is formed through the base portion 51. A projection 111 on the drive shaft 11 side is inserted into the long hole 54, and thereby the stopper 5 and the drive shaft 11 are connected. The base portion 51 extends along the short side direction of the lower case 22. An opening (not shown) for inserting the base portion 51 of the stopper 5 is formed on the side wall in the long side direction of the cover member 23. Then, the cover member 23 is mounted on the lower case 22 in such a manner that the front end side of the base portion 51 is exposed to the outside through the opening of the cover member 23 (see FIGS. 1 and 2 and the like).

  When the drive shaft 11 rotates in accordance with the closing operation of the operation knob 6, the protrusion 111 provided on the bottom surface 110 also moves so as to draw an arc locus. In the illustrated example, the long axis direction of the long hole 54 in the stopper 5 is formed along the long side direction of the lock box 2. The width of the long hole 54 in the short axis direction is the same as or slightly larger than the diameter of the protrusion 111. On the other hand, the width of the long hole 54 in the major axis direction is sufficiently larger than the diameter of the protrusion 111. When the operation knob 6 is closed, the projection 111 performs an arc motion while sliding in the long hole 54 in the long axis direction. As a result, the stopper 5 slides in a direction in which the protruding amount of the base portion 51 from the lock box 2 increases as shown in FIG. 13 from the state shown in FIG. Thereby, the front-end | tip engaging part 53 engages with the latch of the other party, and a storage wagon (locking target object) can be locked.

(Knob closing operation when the dial lock is locked)
The locked state of the dial lock 3 is a state where the dial 31 is not aligned with the password. In this state, as shown in FIG. 13, the posture of the swinging plate 34 is held in a posture that is pushed down below the horizontal posture. Hereinafter, an operation when the operation knob 6 is closed from the state where the dial lock 3 is locked will be described. 16 and 17 are explanatory diagrams for explaining the relationship between the disk plate 12 and the swing arm 343. FIG. FIG. 16 shows a state where the lock target is unlocked (operation knob: OPEN position). FIG. 17 shows a state where the locking object is locked (operation knob: CLOSE position). 16 and 17, illustration of the sleeve 41 and the inner cylinder 42 is omitted. FIG. 18 is a sectional view taken along the arrow C in FIG. FIG. 19 is a view on arrow D in FIG.

The disk plate 12 is provided with a fan-shaped fan portion 120 having a diameter larger than that of other regions in a part of the circumferential direction. Of the step portions formed at the boundary between the fan portion 120 and the general portion 121 where the fan portion 120 is not provided, the step portion 122 on the right side when viewed from above the disc plate 12 is Connected at an acute angle. When the operation knob 6 is in the OPEN position, as shown in FIG. 16, the relative relationship between them is determined so that the fan portion 120 of the disk plate 12 and the swing arm 343 overlap vertically. In this state, since the fan part 120 of the disk plate 12 is under the swing arm 343, the swing arm 343 urged downward by the spring 344 contacts the upper surface of the fan part 120. As a result, as shown in FIG. 17, the swing arm 343 is maintained in the horizontal posture (first posture). In the present embodiment, the fan part 120 corresponds to the swing restricting part. From this state, when the operation knob 6 is closed, the swing arm 343 slides on the upper surface of the fan part 120, so that even if the dial 31 of the dial lock 3 does not match the password, the operation knob 6 The closing operation can be performed. That is, the operation knob 6 can be closed even when the password is not displayed.

  When the operation knob 6 moves to the CLOSE position, the fan unit 120 moves to the position shown in FIG. Then, the overlapping state of the fan part 120 and the swing arm 343 is released, and the swing arm 343 in the horizontal posture is pushed down to the same swing angle as the swing plate 34 by the biasing force of the spring 344 (FIG. 19). See). That is, the swing arm 343 is pushed down to a posture (second posture) that swings downward from the horizontal posture. As a result, the height of the fan portion 120 of the disk plate 12 and the swing arm 343 coincide, and the tip portion 343A of the swing arm 343 and the step portion 122 of the fan portion 120 engage. As a result, after the operation knob 6 has moved to the CLOSE position and the object to be locked has been locked, the tip 343A of the swing arm 343 remains on the fan 120 even if the operation knob 6 is rotated in the OPEN direction. Interference with the stepped portion 122 prevents the operation knob 6 from being opened. Note that the operation of the stopper 5 when the operation knob 6 moves from the OPEN position to the CLOSE position is the same as the case where the locking object is locked while the dial lock 3 is unlocked. In the present embodiment, the stepped portion 122 corresponds to the rotation restricting portion. The swing plate 34 holds the swing arm 343 in a horizontal position (first position) when the dial 31 is aligned with the password, and the swing arm 343 when the dial 31 is not aligned with the password. The posture is changed to the second posture that swings downward from the horizontal posture. In the present embodiment, the posture changing means is configured by the swing plate 34, the convex portion 342A fitted to the concave portion 331, the spring 344, and the horizontal stopper 346.

  As described above, in the lock device 1 according to the present embodiment, the operation knob 6 is closed, i.e., the lock target object is closed, regardless of whether the dial 31 of the dial lock 3 is aligned with the password. Locking operation can be performed. When the object to be locked is locked in a state where the dial 31 is not aligned with the code number, after the locking object is once locked, the tip portion 343A of the swing arm 343 is locked to the step portion 122 of the fan portion 120. Therefore, the operation knob 6 cannot be opened. Therefore, the unlocking operation of the locked object is limited. When the knob is closed while the dial lock 3 is unlocked, the user turns the dial 31 appropriately to break the dial display from the password. Thereby, the fitting state of the concave portion 331 of the inner wheel 33 and the convex portion 342 of the swinging plate 34 (connecting member 342) is released. As a result, the swinging plate 34 in the horizontal posture is pushed down by the inner wheel 33, and the state shown in FIG. 19 is obtained. As a result, as shown in FIG. 17, the tip 343A of the swing arm 343 is locked to the step 122 of the fan 120, and the opening operation of the operation knob 6 is restricted.

[Unlocking the object to be locked]
Next, the unlocking operation of the locked object will be described. The user rotates the dial 31 to align the dial display with the password. If it does so, the recessed part 331 of the inner wheel 33 corresponding to each dial 31 and the convex part 342 of the rocking | swiveling plate 34 (connection member 342) will be in a fitting state. As a result, the swing plate 34 swing arm 343 returns to the horizontal posture (first posture) (see FIG. 11). As a result, the engagement state between the tip end portion 343A of the swing arm 343 and the stepped portion 122 of the fan portion 120 is released, and an opening operation for rotating the operation knob 6 from the CLOSE position toward the OPEN position can be performed. become. As a result, the locked object can be unlocked by releasing the engaged state between the stopper 5 and the latch.

[Emergency unlocking of objects to be locked]
When the password of the dial lock 3 is not known, the emergency unlocking key 7 is inserted into the key hole 420 of the cylinder lock 4 (inner cylinder 42) (see FIGS. 6A and 6B). 6-8, the general tumbler 421 of the inner cylinder 42 is drawn into the slot 421, and the engagement between the general tumbler 421 and the locking groove 411 on the sleeve 41 side is released. Thereby, the emergency unlocking key 7 can be rotated clockwise. In this case, the opening operation of the operation knob 6 is restricted by the locking of the dial lock 3, but the drive shaft 11 is rotated by rotating the inner cylinder 42 relative to the sleeve 41. Can do. Regarding the relative rotation position of the inner cylinder 42 with respect to the sleeve 41 (the attitude of the keyhole 420), the position where the general tumbler 421 and the locking groove 411 of the sleeve 41 engage is referred to as a “locking position”. At the time of emergency unlocking, the gripping portion 71 of the emergency unlocking key 7 is rotated, and the posture of the keyhole 420 is changed to the unlocking position rotated 90 ° clockwise from the locking position. Thereby, the stopper 5 slides and the stopper 5 is detached from the latch, whereby the storage wagon can be unlocked.

[Search PIN]
Next, a method for searching for a personal identification number will be described. FIG. 20 is an explanatory diagram for explaining a mechanism related to number search. 21 is a cross-sectional view taken along line EE in FIG. On the side surface of the roller member 10 connected to the inner cylinder 42, a pressing piece 100 for pressing a number search plate 13 described later is projected. The number search plate 13 is a member arranged in parallel to the dial shaft 32 inside the side surface of the lower case 22. When searching for a personal identification number, with the emergency unlocking key 7 inserted into the key hole 420 of the inner cylinder 42, the gripping portion 71 is rotated to a number search position that is further advanced, for example, 30 ° clockwise than the unlocking position. Let Then, the roller member 10 also rotates in conjunction with the inner cylinder 42, and the pressing piece 100 of the roller member 10 presses the tip hook portion 130 formed at the tip portion of the number search plate 13, as shown in FIG. To come. As a result, the number search plate 13 slides along the dial shaft 32.

  As shown in FIG. 21, for example, a triangular protrusion 332 protrudes from the peripheral surface of each inner wheel 33 of the dial lock 3 at a specific position in the circumferential direction. The number search plate 13 includes a base portion 131 and a search arm portion 132 that rises upward from the base portion 131. Four search arm portions 132 are provided corresponding to each dial 31 of the dial lock 3. The number search plate 13 is urged from the distal end side of the dial shaft 32 toward the proximal end side by, for example, a spring member (not shown). During normal use in which the emergency unlocking key 7 is not rotated to the number search position, the positions along the dial shaft 32 of the search arm portions 132 of the number search plate 13 and the protrusions 332 of the inner wheels 33 are mutually different. It is designed not to overlap.

  When the number search plate 13 slides from the base end side of the dial shaft 32 toward the front end side during the number search, the front end portion 132A of each search arm portion 132 of the number search plate 13 and the search arm portion 132 correspond. The protrusion 332 of the inner wheel 33 coincides with the position in the dial shaft 32 direction. Here, when each inner wheel 33 is rotated with respect to the dial shaft 32, the recess 331 of each inner wheel 33 is moved to the swing plate at the timing when 132 A of the search arm portion 132 contacts the protrusion 332 of each inner wheel 33. It is adjusted so as to be fitted to the convex portion 342A of 34. The user can grasp the timing at which the protrusion 332 of each inner wheel 33 and the search arm portion 132 come into contact based on the change in rotational resistance when each dial 31 is rotated. As a result, for each dial 31, it can be specified which number from 0 to 9 corresponds to the password. That is, the password can be searched.

[Change PIN]
Next, a method for changing (setting) the password will be described. 22-24 is explanatory drawing explaining the change mechanism of a PIN code. First, referring to FIG. 2, the number change switch 14 is provided on the bottom surface of the lower case 22. The number change switch 14 has a single-character groove 140 that can be rotated by, for example, a coin or a flat-blade screwdriver. In addition, around the number change switch 14 on the bottom surface of the lower case 22, “in use” and “in number setting” are displayed together with respective mark marks. The mark mark corresponding to each notation is provided so that the groove 140 is opposed to each mark mark when the number change switch 14 is rotated by 90 °. When the lock apparatus 1 is used, the number change switch 14 is not exposed because the cover member 23 is attached to the lower case 22.

  Next, referring to FIG. 4, the number change plate 15 is arranged inside the side surface of the lower case 22. The number change plate 15 is disposed along the dial shaft 32 in the vicinity of the side surface of the lower case 22 opposite to the number search plate 13. 22 and 23 are explanatory diagrams for explaining the operation of the number change plate 15. FIG. 22 shows a state in which the number change switch 14 is in the “in use” position. FIG. 23 shows a state in which the number change switch 14 is at the “number setting” position. Moreover, FIG. 22, FIG. 23 and FIG. 24 mentioned later have shown the state which looked at the dial lock 3 from the downward direction of the lock box 2. FIG. The number change plate 15 is slidable along the dial shaft 32, and is provided in a square shape in the middle of the base portion 150 supported by the lower case 22, a pressing portion 151 provided at the tip of the base portion 15, and the base portion 15. Frame portion 152 and the like. A semi-cylindrical member 16 that is connected to the number change switch 14 and has a substantially semicircular cross section is inserted into a square hole portion 152A that is a space surrounded by the frame portion 152.

  The semi-cylindrical member 16 rotates in conjunction with the number change switch 14. For example, when the number change switch 14 is rotated 90 ° from the “in use” to the “number setting” position, the semi-cylindrical member 16 is also rotated 90 °, and the posture is changed to the state shown in FIGS. Change. When the semi-cylindrical member 16 rotates, the semi-cylindrical member 16 presses the frame portion 152, so that the number change plate 15 slides from the distal end side of the dial shaft 32 to the proximal end side. As a result, the pressing portion 151 presses the inner wheel 33 located on the most distal end side of the dial shaft 32 from the side. As a result, each inner wheel 33 moves from the distal end side of the dial shaft 32 to the proximal end side against the urging force of the spring 35. On the other hand, since the outer peripheral portion of the dial 31 partially protrudes from the window hole 211, the dial 31 does not interlock even if the inner wheel 33 slides. As a result, in the normal state, the engagement between the dial 31 and the inner wheel 33 which are engaged with each other is released by the clutch 17 interposed between the dial 31 and the inner wheel 33 (see FIG. 24). The clutch 17 can be constituted by a plurality of gears that are provided on the dial 31 side and the inner wheel 33 side and mesh with each other. Further, the dial lock 3 slides the inner wheel 33 so that the engagement between the dial 31 and the inner wheel 33 is released, and at the same time, the inner wheel 33 engages with the dial shaft 32, thereby The rotation operation of the wheel 33 is restricted.

The setting change of the personal identification number is performed in a state where the dial lock 3 is unlocked. Thereby, when the engagement between the dial 31 and the inner wheel 33 is released, the concave portion 331 of each inner wheel 33 and the convex portion 342A of the swing plate 34 are in a fitted state. In this state, the user rotates the dial 31 to display his / her favorite number in the window hole 211. At this time, since the inner wheel 33 is disengaged from the dial 31 and the dial lock 3 is unlocked, the recesses 331 of the inner wheels 33 and the protrusions 342A of the swing plate 34 are The number of the dial 31 displayed in the window hole 211 can be freely changed while maintaining the fitted state. When the user operates the dial 31 to set the personal identification number to an arbitrary number, the inner wheel 33 is engaged with the dial shaft 32 that is a fixed shaft. The wheel 33 does not rotate carelessly. Thereby, it can suppress that a PIN code is mistakenly set to the number contrary to a user's will. After aligning the dial display with a new password, the user returns the number change switch 14 from the “number setting” position to “in use”. As a result, the pressing of the frame portion 152 by the semi-cylindrical member 16 is released, so that the number change plate 15 slides due to the urging force of the spring 35. That is, the number change plate 15 returns to the normal position from the proximal end side of the dial shaft 32 toward the distal end side. As a result, the engagement between the inner wheels 33 and the dial shaft 32 is released, and the inner wheels 33 and the dials 31 are fitted again. Thereby, the setting change of the personal identification number is completed, and the user can change the personal identification number to an arbitrary number.

[Tamper suppression mechanism]
In the dial lock 3, there is a slight gap between the window hole 211 and the dial 31 in the upper case 21, but as shown in FIG. 9, the inner wheel 33 fitted to the dial shaft 32 is located above and below the window hole 211. It is arranged at a shifted position. Thereby, even if it is going to insert a foreign material from the clearance gap between the window hole 211 and the dial 31, it can avoid interfering with the inner wheel 33 directly. Therefore, it is possible to prevent the protrusion 332 of the inner wheel 33 and the search arm portion 132 of the number search plate 13 from coming into contact with foreign matter, and avoid the malfunction or failure of the dial lock 3.

[How to replace the inner cylinder]
Next, an inner cylinder replacement method for replacing the inner cylinder 42 will be described. To replace the inner cylinder 42, the inner cylinder exchange key 8 shown in FIG. 5B is inserted into the key hole 420. FIG. 25A is a diagram showing a state before the inner cylinder exchange key 8 is inserted into the key hole 420 of the inner cylinder 42. FIG. 25B is a view showing a state where the inner cylinder exchange key 8 is inserted into the key hole 420 of the inner cylinder 42. FIG. 26A is a view showing a cross-sectional structure of the cylinder lock 4 in a state before the inner cylinder replacement key 8 is inserted into the key hole 420 of the inner cylinder 42. FIG. 26B is a view showing a cross-sectional structure of the cylinder lock 4 in a state where the inner cylinder replacement key 8 is inserted into the key hole 420 of the inner cylinder 42. 26A and 26B show a cross-sectional structure when the cylinder lock 4 is viewed from the bottom side. FIG. 27 is a view showing a state where the inner cylinder 42 is pulled out from the sleeve 41.

  As shown in FIGS. 25 and 26, the stopper tumbler 422 </ b> A is narrower at the other end Y than at one end X. The end X protrudes outside the inner cylinder 42 by the urging force of the spring 423 when the inner cylinder replacement key 8 is not inserted into the key hole 420. As shown in FIG. 27, a region where the locking groove 11 is not formed exists on the bottom side of the sleeve 41 on the inner peripheral surface of the sleeve 41. The locking groove 411 is formed in the range from the top of the sleeve 41 to the middle in the longitudinal direction. Further, an enlarged diameter portion 412 having an inner diameter larger than that of the region where the locking groove 411 is formed is formed in the region on the bottom side of the sleeve 41, and a step portion 413 is formed at the boundary. Has been. When the emergency unlocking key 7 is inserted into the key hole 420 of the inner cylinder 42 attached to the sleeve 41, the end portion X of the stopper tumbler 422A engages with the step portion 413. Therefore, when the emergency unlocking key 7 is inserted into the key hole 420, the end X is caught by the step 413, so that the inner cylinder 42 can be prevented from coming off from the sleeve 41.

As shown in FIGS. 8, 26, 27, and the like, the sleeve 41 is formed on the inner peripheral surface along the longitudinal direction of the sleeve 41 at a position shifted from the pair of opposing locking grooves 411 by 90 ° in the circumferential direction. An inner cylinder replacement groove 414 is provided. The width of the inner cylinder replacement groove 414 is formed to be the same as or slightly larger than the width of the end portion Y of the stopper tumbler 422A, and has a smaller size than the width of the end portion X. When the inner cylinder exchange key 8 is inserted into the key hole 420, the general tumbler 422 is completely pulled into the slot 421 by the first key groove 9A, and the stopper tumbler 422A is pulled into the slot 421 by the second key groove 9B. At that time, the end portion X of the stopper tumbler 422A is completely drawn into the slot 421, but the end portion Y protrudes to the outside (see FIGS. 25B, 26B, and 27).

(Pulling out the inner cylinder when the dial lock is unlocked)
Here, when the dial lock 3 is unlocked, the operation knob 6 is rotated 90 ° counterclockwise (locking direction) from the OPEN position to the CLOSE position. As a result, the positions of the end portion Y of the stopper tumbler 422A and the inner cylinder replacement groove 414 in the circumferential direction match. Therefore, in this state, the inner cylinder 42 can be pulled out from the sleeve 41 by pulling the inner cylinder 42.

(Pulling out the inner cylinder with the dial lock locked)
On the other hand, when the dial lock 3 is locked, turning the operation knob 6 is restricted. In this case, the gripping portion 81 of the inner cylinder replacement key 8 inserted into the keyhole 420 is rotated 90 ° clockwise (unlocking direction). As a result, the positions of the end portion Y of the stopper tumbler 422A and the inner cylinder replacement groove 414 in the circumferential direction match. Therefore, in this state, the inner cylinder 42 can be pulled out from the sleeve 41 by pulling the inner cylinder 42.

  Next, a procedure when the new inner cylinder 42 is attached to the sleeve 41 will be described. First, a case where a new inner cylinder 42 is mounted using the inner cylinder exchange key 8 will be described.

(Mounting the inner cylinder with the dial lock unlocked)
When the dial lock 3 is unlocked, the inner cylinder exchange key 8 is inserted into the key hole 420 of the inner cylinder 42. As a result, the general tumbler 421 is completely drawn into the inner cylinder 42, and the end Y of the stopper tumbler 422A is drawn into the inner cylinder 42 and the end Y protrudes to the outside. Therefore, the inner cylinder 42 is pushed into the sleeve 41 while aligning the position of the end Y of the stopper tumbler 422A with the inner cylinder replacement groove 414 of the sleeve 41. After pushing the inner cylinder 42 to the end, the operation knob 6 is rotated 90 ° clockwise (unlocking direction) from the CLOSE position to the OPEN position. As a result, the slot 421 of the inner cylinder 42 and the locking groove 411 of the sleeve 41 face each other. Thereafter, the inner cylinder replacement key 8 is pulled out from the key hole 420 of the inner cylinder 42. As a result, the general tumbler 422 of the inner cylinder 42 protrudes from the slot 421 and is locked in the locking groove 411 of the sleeve 41. The stopper tumbler 422 </ b> A protrudes from the end X instead of being pulled into the slot 421, and engages with the step 413. Thereby, the mounting of the inner cylinder 42 on the sleeve 41 is completed.

  For attaching the inner cylinder 42 to the sleeve 41, the emergency unlocking key 7 can be used instead of the inner cylinder replacement key 8. As shown in FIG. 26, when the inner cylinder 42 is pushed into the sleeve 41 with the end X of the stopper tumbler 422A protruding from the top of the sleeve 41, the protruding end X is brought into sliding contact. A slope portion 415 for pushing the end portion X into the slot 421 is provided. The slope portion 415 has a tapered inner peripheral surface of the sleeve 41, and the inner diameter gradually decreases from the top side toward the bottom side. The slope portion 415 is formed at a position facing the inner cylinder replacement groove 414 in the circumferential direction of the inner peripheral surface of the sleeve 41. Further, the width of the slope portion 415 is formed to be the same as or larger than the width of the end portion X of the stopper tumbler 422A.

In the above configuration, the emergency unlocking key 7 is inserted into the key hole 420 of the inner cylinder 42, the end X of the stopper tumbler 422 A is aligned with the slope 415 of the sleeve 41, and then the inner cylinder 42 is inserted into the sleeve 41. Push in. As a result, the end X of the stopper tumbler 422A
Runs up the slope portion 415, and the end portion X is drawn into the slot 421 against the biasing force of the spring 423. At that time, the end Y of the stopper tumbler 422A tends to protrude from the slot 421 to the outside. On the other hand, since the slope portion 415 is formed on the opposing surface of the inner cylinder replacement groove 414, the inner cylinder 42 is moved while the end Y protruding from the inner cylinder 42 is accommodated in the inner cylinder replacement groove 14. It can be pushed in. Thereafter, the operation knob 6 is rotated 90 ° clockwise (unlocking direction) from the CLOSE position to the OPEN position, and the emergency unlocking key 7 is pulled out. As a result, the general tumbler 422 of the inner cylinder 42 is locked in the locking groove 411, and the end X of the stopper tumbler 422A is engaged with the stepped portion 413. Thereby, the mounting of the inner cylinder 42 on the sleeve 41 is completed.

(Installing the inner cylinder with the dial lock locked)
Next, mounting of the inner cylinder 42 when the dial lock 3 is locked will be described. In this case, since the turning operation of the operation knob 6 is restricted, the inner cylinder replacement key 8 is inserted into the key hole 420 of the inner cylinder 42. At that time, as in the case where the inner cylinder replacement key 8 is used while the dial lock 3 is locked, the inner cylinder is adjusted while aligning the position of the end Y of the stopper tumbler 422A with the inner cylinder replacement groove 414 of the sleeve 41. 42 is pushed into the sleeve 41. After the pushing of the inner cylinder 42 is completed, the gripping portion 81 of the inner cylinder exchange key 8 inserted into the key hole 420 is rotated 90 ° counterclockwise (locking direction). Thereafter, by pulling out the inner cylinder replacement key 8 from the key hole 420, the general tumbler 422 of the inner cylinder 42 is locked to the locking groove 411 of the sleeve 41, the end X of the stopper tumbler 422A protrudes, and the step 413 and Engage. Thereby, the mounting of the inner cylinder 42 on the sleeve 41 is completed.

  Here, even when the dial lock 3 is locked, the inner cylinder 42 can be mounted using the emergency unlocking key 7 instead of the inner cylinder replacement key 8. In this case, the emergency unlocking key 7 is inserted into the key hole 420 of the inner cylinder 42, the end portion X of the stopper tumbler 422 A is aligned with the slope portion 415 of the sleeve 41, and then the inner cylinder 42 is pushed into the sleeve 41. Accordingly, the inner cylinder 42 can be pushed into the sleeve 41 while pushing the end X of the stopper tumbler 422A back into the slot 421. Thereafter, the emergency unlocking key 7 inserted into the keyhole 420 is rotated 90 ° counterclockwise (locking direction), and then the emergency unlocking key 7 is pulled out from the keyhole 420. As a result, the general tumbler 422 of the inner cylinder 42 is locked in the locking groove 411, and the end portion X of the stopper tumbler 422A is engaged with the stepped portion 413, whereby the mounting of the inner cylinder 42 to the sleeve 41 is completed. .

In the embodiment described above, the stopper 5 is slid along the short side direction of the lock box 2. However, the stopper 5 can be slid along the long side direction of the lock box 2 as shown in FIG. . FIG. 28 shows the lower surface of the lock device 1 with the cover member removed. In the configuration shown in FIG. 28, the stopper 5 and the drive shaft 11 are installed in a state where the stopper 5 and the drive shaft 11 are rotated 90 ° clockwise from the state shown in FIG. In this case, the long axis of the long hole 54 through which the protrusion 111 provided on the drive shaft 11 is inserted is parallel to the short side of the lock box 2 (lower case 22). From this state, when the operation knob 6 is turned, it can be slid along the long side direction of the lock box 2. The opening provided for inserting the base portion 51 of the stopper 5 is formed in the side wall on the short side of the cover member 23. In this case, the width of the opening through which the base portion 51 is inserted may be a dimension that provides a slight clearance than the width of the base portion 51 through which the opening is inserted. For example, the clearance dimension is preferably set to an appropriate value so that the sliding direction of the stopper 5 is not inclined with respect to the side of the lock box 2 when the operation knob 6 is rotated. As described with reference to FIGS. 14, 15, and 28, in the present embodiment, the rotation operation of the operation knob 6 can be converted into the slide operation of the stopper 5, and the sliding direction is the front-rear direction and the left-right direction of the lock box 2. Any of these can be selectively set. Therefore, even if the specification of the mating engagement portion on which the stopper 5 is engaged is changed, a flexible response is possible, and the degree of freedom in layout such as the position and orientation of the lock device 1 can be increased. Further, since the lock device 1 is integrally formed with the operation portion 60 on the outer peripheral side of the sleeve 41 and the operation knob 6 is provided at the upper end thereof, compared with the case where the operation knob and the cylinder lock 4 are provided separately, The lock device 1 can be made compact.

  Moreover, although the lock apparatus 1 provided with the cylinder lock 4 was mentioned as an example in this embodiment, this invention is applicable also to the lock apparatus in which the cylinder lock 4 is not provided. That is, the lock device 1 shown in FIG. 29 is not provided with a cylinder lock unlike the embodiments described above. In such a lock device 1 as well, the object to be locked can be locked by closing the operation knob 6 while the dial lock 3 is unlocked.

DESCRIPTION OF SYMBOLS 1 Lock device 2 Lock box 3 Dial lock 4 Inner cylinder exchange type cylinder lock 5 Stopper 6 Operation knob 7 Emergency unlocking key 8 Inner cylinder exchange key

Claims (2)

A dial, a dial shaft supported in the lock box, a dial shaft that is rotatably supported with respect to the dial shaft, supports the dial on the outer peripheral side thereof, and is provided with a recess in a part of the circumferential direction. A dial lock having a wheel member;
A lock-side engaging member that is provided so as to be freely disengageable with respect to the mating engagement portion, and that locks the object to be locked by engaging with the engagement portion;
When it is pivotable between a predetermined unlocking position and a locking position, and when it is in the locking position, the lock-side engaging member is engaged with the engaging portion, and when it is in the unlocking position An operating portion for releasing the lock-side engaging member from the engaging portion;
A swing arm provided swingably in the lock box;
When the dial is aligned with the unlocking code, the swinging arm is held in a predetermined first posture, and when the dial is not aligned with the unlocking code, the swinging arm is predetermined from the first posture. Posture changing means for pressing the swing arm to swing to the second posture of
A pivoting member that pivots in conjunction with the operation unit, wherein the swinging arm comes into contact with the swinging arm except when the operation unit is in the locking position, so that the swinging arm is moved from the first posture to the A swing restricting portion that restricts swinging to the second posture, and a rotation operation toward the unlocking position by engaging the swing arm when the swing arm is in the second posture. And a rotation member having a rotation restriction portion that is disengaged from the swing arm when the swing arm is in the first posture;
With
The posture changing means is
A swing member that is swingably supported in the lock box and that swingably supports the swing arm;
Protruding portions that are provided on the upper surface of the rocking member and that fit into the recessed portions formed in the wheel member in a state where the dial is aligned with the unlocking code;
An urging means provided on the oscillating member for urging the oscillating arm downward;
A locking piece that is provided on the swing arm and prevents the swing arm from swinging downward relative to the swing member;
Have
The swing arm is held in the first posture in a state where the convex portion and the concave portion are fitted,
When the fitting state between the convex portion and the concave portion is released and the swinging arm is biased downward by the biasing means, the swinging arm is changed from the first posture to the second posture. Locking device characterized by being made. A dial, a dial shaft supported in the lock box, a dial shaft that is rotatably supported with respect to the dial shaft, supports the dial on the outer peripheral side, and is provided with a protrusion in a part in the circumferential direction. A dial lock having a wheel member;
A lock-side engaging member that is provided so as to be freely disengageable with respect to the mating engagement portion, and that locks the object to be locked by engaging with the engagement portion;
When it is pivotable between a predetermined unlocking position and a locking position, and when it is in the locking position, the lock-side engaging member is engaged with the engaging portion, and when it is in the unlocking position An operating portion for releasing the lock-side engaging member from the engaging portion;
A swing arm provided swingably in the lock box;
When the dial is aligned with the unlocking code, the swinging arm is held in a predetermined first posture, and when the dial is not aligned with the unlocking code, the swinging arm is predetermined from the first posture. Posture changing means for pressing the swing arm to swing to the second posture of
A pivoting member that pivots in conjunction with the operation unit, wherein the swinging arm comes into contact with the swinging arm except when the operation unit is in the locking position, so that the swinging arm is moved from the first posture to the A swing restricting portion that restricts swinging to the second posture, and a rotation operation toward the unlocking position by engaging the swing arm when the swing arm is in the second posture. And a rotation member having a rotation restriction portion that is disengaged from the swing arm when the swing arm is in the first posture;
A number search plate provided in the lock box slidably along the dial shaft, and having a search arm for searching for an unlocking code;
A cylinder lock that enables retrieval of an unlocking code by the retrieval arm when a predetermined key inserted into the keyhole is operated to a predetermined search position;
With
The number search plate slides so that a position along the dial axis of the search arm portion and the protrusion of the wheel member coincides when the key is operated to the search position, and the dial When the wheel member is rotated with respect to the shaft, the search arm portion comes into contact with the protrusion of the wheel member at a timing when the dial supported on the outer peripheral side of the wheel member matches the unlocking code. Locking device characterized by being made.

Images