JP2971463B1 - Code lock device - Google Patents

Abstract

An unlock code sequence can be appropriately set as intended by a user, regardless of whether the unlock code sequence is set first or after. SOLUTION: A front plate 3 has a shooting 110 for driving an operation driving unit 10 and a 4 for setting an unlock code sequence.
In addition to the individual dials 50, a push button 31 of the operation tool 30 is provided. The unlock code string is set by operating the dial 50, the operation driving unit 10 is driven by the operation of the shooting 110 to close the latch 1, and then the push button 31 of the operating tool 30 is pressed to set. After the unlock code sequence is stored, the unlock code sequence is broken and the locked state is established.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock device for use in a locker or a safe, and more particularly, the present invention relates to a code capable of setting an arbitrary unlock code sequence using a plurality of dials. It relates to a lock device.

[0002]

2. Description of the Related Art A conventional code lock device of this type is attached to, for example, a door of a locker for rent, and a latch is opened and closed by opening and closing operations by taking forward and reverse by taking operation when unlocking and locking. The locker engages with and disengages from a metal fitting provided on the main body of the locker. This code lock device has a plurality of dials located on the front surface of the door, and by manually operating these dials, the setting of the unlock code sequence at the time of locking and the alignment of the unlock code sequence at the time of unlocking are performed. , Respectively. The unlock code sequence set at the time of locking is stored by the storage mechanism.

At the time of locking, first, a plurality of dials are manually operated to set a desired unlocking code string, and then, when a photographing operation is performed, the latch engages with the receiving bracket of the main body, and is set. The unlock code string is stored in the storage mechanism. Next, when the unlock code string is appropriately broken by manually operating each dial, a locked state is formed by the lock mechanism.

At the time of unlocking, the lock mechanism is unlocked when a plurality of dials are manually operated to align the unlock code strings. Next, a shooting operation is performed to remove the latch from the receiving bracket of the main body. After the unlocking operation, the unlock code string remains in the aligned state, so that the locker user performs the locking operation after performing the locking operation so that the unlock code string is not known to others. Or the unlocking code string is broken without performing the locking operation.

[0005]

In the lock device having the above-described structure, the locking operation is sequenced such that the unlocking code sequence is first set by dial operation and then the shooting operation is performed. In some cases, a locker user may mistake the locking operation procedure. As a result, the following inconveniences occur, especially when the user of the locker constantly changes.

Now, assuming that a new user of the locker makes a mistake in the operation procedure, first performs a shooting operation, and then operates a dial to set an unlocking code string, the unlocking state is assumed. In this case, since the unlock code string set by the previous user remains in the aligned state, the previous unlock code string is stored as it is by the first shooting operation.
Next, the dialing operation performed in the stack for setting the unlocking code sequence is an operation of breaking the stored unlocking code sequence, and the locked state is established. As a result, an unlock code string that the new user does not intend at all is set, and even if the set unlock code string is aligned at the time of unlocking, the unlock state is not set. , Unlocking is impossible.

As a code locking device effective for preventing the erroneous operation described above, the applicant has forcibly rotated each dial in conjunction with a shooting operation at the time of locking and unlocking, thereby obtaining an unlocking code sequence. Has been proposed, which automatically breaks and restores a predetermined initial code sequence. According to this code locking device, the unlocking code string is automatically broken by the shooting operation at the time of locking, so that it is possible to prevent the forgetting of breaking the unlocking code string at the time of locking, and to obtain the effect of unlocking. At the time of locking, the unlock code sequence set by the previous user does not remain, so there is no possibility that the previous unlock code sequence is incorrectly set.

However, the forced dial drive mechanism linked to the shooting operation has a problem in that the structure is considerably complicated, and the code lock device is increased in size and cost is increased.

The present invention has been made in view of the above problem, and it is possible to appropriately set an unlock code string as intended by a user, regardless of whether the unlock code string setting operation is performed first or after. It is an object to provide a code lock device that can be set. Another object of the present invention is to provide a small, inexpensive code lock device having a simple structure by adopting a structure in which an unlock code sequence is broken by operating an operation tool. .

[0010]

According to a first aspect of the present invention, there is provided an operation driving unit driven by an operation for opening and closing a latch, an unlock code sequence for locking and an unlock code for unlocking. Multiple dials operated to align the rows,
A storage mechanism for storing the set unlock code sequence, and a locked state formed by breaking the unlock code sequence after the operation of the storage mechanism, and forming an unlocked state by aligning the unlock code sequence in the locked state. In a sign lock device having a lock mechanism, an operation tool that is operated at least at the time of locking, and an operation control mechanism that operates the storage mechanism in response to the operation of the operation tool, the operation control mechanism, A mechanism for activating the operation of the operation tool by closing the operation drive unit.

According to a second aspect of the present invention, there is provided an operation drive unit driven by an operation for opening and closing a latch which is engaged with and disengaged from a receiving bracket, an unlock code sequence for locking and an unlock code for unlocking. A plurality of dials operated to align the rows, a storage mechanism for storing the set unlock code sequence, and a locked state formed by breaking the unlock code sequence after the operation of the storage mechanism A lock mechanism having a lock mechanism for forming an unlocked state by arranging the unlock code sequence in at least an operating tool operated at the time of locking and setting each dial in response to the operation of the operating tool. A dial forcible drive mechanism for forcibly breaking the unlocked code string, and an operation control mechanism for operating the storage mechanism before the dial forcible drive mechanism responds to the operation of the operating tool, Said Kinematic control mechanism comprises a mechanism for activating the operation of the operating member by closing operation of the operation driver.

[0012]

The operation of the operation drive unit after the setting operation of the unlock code string is first performed by the dial, and the operation of setting the unlock code string by the dial after the operation drive unit is operated first. However, the set unlock code string is not stored unless the operating tool is operated. When the operating tool is operated after setting the unlock code string in any of the procedures, the storage mechanism operates and the unlock code string is stored. Thereafter, when the unlock code string is broken, a locked state is formed.

According to the second aspect of the present invention, when the unlocking code sequence is set by any of the above-described procedures and the operating tool is operated, first, the storage mechanism is operated to store the unlocking code sequence. . Next, the forced dial drive mechanism is operated, the unlock code string is broken, and a locked state is formed.

[0014]

1 and 2 show the appearance of a code lock device according to an embodiment of the present invention. FIG. 3 and FIG.
The internal structure of this code lock device is shown. This code lock device,
For example, it is attached to the door of a rental locker,
Rotates forward and backward by 90 degrees, and is disengaged from the receiving fitting 2 attached to the main body of the rental locker.

In the following description, the hook 1 is
The closed state, the locked state of this closed state is the locked state, the unlocked state is the unlocked state, and the latch 1 comes off the receiving fitting 2. The opened state is called an “open state”. In addition, the operation from the “open state” to the “locked state” through the “closed state” is referred to as “locking operation”,
The operation from the “closed state” to the “opened state” via the “unlocked state” is referred to as “unlocking operation”. 1 to 4 show the “open state”.
2 shows the appearance and internal structure of the code lock device shown in FIG.
FIGS. 5 and 6 show the internal structure in the “closed state”.
7 to 10 show the internal structure when an operation tool described later is operated, respectively.

In the illustrated locking device, the upper opening of the box-shaped case 9 is closed by the front plate 3, and a circular opening 4 is provided near one end of the front plate 3, from the center to the other end. , Four window holes 5 have rectangular openings 6 below them.
Are provided respectively. Inside the box-shaped case 9, an operation driving unit 10 is provided at the position of the circular opening 4, and a sign lock mechanism is provided at the position of the four window holes 5 and operated at the position of the rectangular opening 6. The tool 30 and the operation control mechanism 40
Each is incorporated. From the circular opening 4, the end plate 11 of the inner cylinder 12 constituting the operation drive unit 10 projects onto the front plate 3. A picture 110 for locking and unlocking operation is attached to the end plate 11. This shot 110
Is rotated in a 90-degree angle range. Note that FIG.
5, 7, and 9 show a state in which the shooting 110 has been removed.

The shooting 110 has a keyhole 111 for inserting a master key. The master key is used for emergency processing when the person who sets the unlock code string forgets the unlock code string. If a cylinder lock mechanism is incorporated in the operation drive unit 10, not only the master key but also a key for unlocking the cylinder lock is inserted into the key hole 111.

Four dials 50 used for setting an unlock code string are arranged at the positions of the window holes 5 described above. From each window hole 5, a dial operation plate 51 of each dial 50 projects onto the front plate 3. Each window hole 5 has a long hole portion 7 from which the dial operation plate 51 protrudes, and a rectangular hole portion 8 continuous with the long hole portion 7. From each of the rectangular holes 8, the reference numeral (in this embodiment,
"0" to "9") appear.

The push button 31 of the operation tool 30 projects from the rectangular opening 6 onto the front plate 3. This push button 31
During the locking operation, is pressed to store the set unlock code sequence and then to perform the locking operation. Further, after the unlocking operation is completed, the push button 31 breaks down the unlocking code sequence and a predetermined initial code sequence (in the illustrated example, a code sequence in which four zeros are arranged).
Also used when returning to.

The lock device of the illustrated example has a structure for locking and a structure for setting and storing an unlock code sequence.
It includes a configuration for breaking the unlock code sequence and returning to the initial code sequence. Hereinafter, the operation drive unit 10, the operation shaft 20, the four dials 50, the storage mechanism 60, the lock mechanism 80, and the operation tool 3
0, operation control mechanism 40, and dial forced driving mechanism 90
Each configuration such as will be described sequentially.

(1) Configuration of the Operation Driving Unit 10 The operation driving unit 10 includes an inner cylinder 12 which rotates integrally with the unlocking operation and the locking operation by the photographing 110, and an outer cylinder fitted on the outer periphery of the inner cylinder 12. It comprises a cylinder 13 and an outer cylinder ring 15. Although not shown, a lock mechanism that operates by inserting a master key is incorporated in the inner cylinder 12.
This lock mechanism has a plurality of disk tumblers, and when the master key is not inserted, some disk tumblers engage with grooves provided on the inner peripheral surface of the outer cylinder 13,
The inner cylinder 12 and the outer cylinder 13 are integrated. When the master key is inserted, some of the above disk tumblers are activated,
Since the engagement with the groove of the outer cylinder 13 is released, only the inner cylinder 12 can rotate independently.

An engagement groove 16 is formed in an inner hole of the outer cylinder ring 15 over a predetermined angle range smaller than 90 degrees. A drive projection 14 projecting from the outer peripheral surface of the outer cylinder 13 is engaged with the engagement groove 16. The engagement groove 16 and the drive projection 1
4 constitutes an active mechanism 41 of the operation control mechanism 40 described later. At the time of locking operation, the inner cylinder 1
When the outer cylinder 2 and the outer cylinder 13 rotate, the driving projections 14
Slides in the engagement groove 16, so that the outer cylinder ring 15 does not rotate integrally. When the drive projection 14 reaches the end of the engagement groove 16, the inner cylinder 12, the outer cylinder 13, and the outer cylinder ring 15 are integrally rotated by the remaining rotation angle range of the shooting 110.

(2) Structure of the Working Shaft 20 The working shaft 20 has a hemispherical tip surface 21 which abuts on the outer peripheral surface of the outer cylinder 13. A cam surface 19 having troughs 18A and 18B at both ends and a peak 18C in the middle is formed on the outer periphery of the outer cylinder 13 where the front end surface 21 abuts.
A support shaft 22 protrudes from a base end surface of the operation shaft 20, and the support shaft 22 is supported by a bearing 23 provided on a support plate 27 of a rear example. The tip of the operating shaft 20 is the support plate 25 of the front example.
Is supported by the bearing hole 24 opened at the bottom. The operation shaft 20 can reciprocate in a direction orthogonal to the operation drive unit 10. A compression spring 26 is mounted on the support shaft 22, and the operating shaft 20 is constantly urged toward the operation drive unit 10 by the spring force. On the peripheral surface of the operating shaft 20, four protrusions 82 constituting the lock mechanism 80 are integrally provided at the same angular position at regular intervals.

(3) Configuration of Dials 50 Each of the four dials 50 is rotatably provided on the operating shaft 20 via a lock gear 52. As shown in FIGS. 3 and 17, each dial 50 has a dial operation plate 51 at one end of a cylindrical wall 54 and a driven gear 53 at the other end.
Are provided integrally. The driven gear 53
Constitutes a dial compulsory driving mechanism 90 described later. On the outer peripheral surface of the cylindrical wall 53, reference numerals "0" to "9" are shown for each equiangular position.

(4) Configuration of Storage Mechanism 60 The storage mechanism 60 is a mechanism for freely setting and storing an unlock code sequence, and includes a displacement mechanism for reciprocating each lock gear 52 and each dial 50. And a meshing mechanism for setting a state of engagement with each lock gear 52. Here, the unlock code sequence refers to a sequence of codes that set the code lock to the “unlocked state” when the dials are aligned, among the sequence of codes of the dials 50 appearing in the window holes 5. In the following description, the code of each dial 50 constituting the unlock code sequence may be simply referred to as “unlock code”.

The displacement mechanism is a mechanism for simultaneously reciprocatingly displacing the lock gears 52 by operating the operation control mechanism 40 in response to the operation of the operating tool 30, and is formed on the outer peripheral surface of the outer cylinder ring 15. Concave portion 70A and convex portion 70
B, a front bush 61 slidably fitted on the distal end of the operating shaft 20, and each lock gear 52 is connected to the rear bush 6.
Compression spring 6 for urging in the direction of operation drive unit 10 via
3 is included. In the front bush 61, the opened leading edge abuts on the outer peripheral surface of the outer cylinder ring 15, and the trailing edge abuts on the leading lock gear 52. A front end surface 21 of the operating shaft 20 protrudes from a front end opening of the front bush 61.

In the "open state" shown in FIGS. 3 and 4, one valley 18A of the outer cylinder 13 and the outer cylinder ring 15
The concave portion 70 </ b> A is positioned in the direction of the operating shaft 20. Each lock gear 52 and the front bush 61 are pushed by the spring force of the compression spring 63 and displaced toward the distal end of the operating shaft 20, and the distal edge of the front bush 61 fits into the recess 70 </ b> A of the outer cylinder ring 15 and abuts. . In this state, each lock gear 5
2 is the most displaced toward the operation drive unit 10. Hereinafter, this state is referred to as a “first displacement state”.

FIGS. 5 and 6 show the state when the state is shifted from the "open state" to the "closed state". In this state, the other valley portion 18B of the outer cylinder 13 and the outer cylinder ring 15
The concave portion 70 </ b> A is positioned in the direction of the operating shaft 20. Therefore, the leading edge of the front bush 61 remains fitted into the recess 70A of the outer cylinder ring 15, and each lock gear 5
Reference numeral 2 maintains the "first displacement state" which is the most displaced toward the operation drive unit 10. Even if the unlock code sequence is set in this state, the same "first displacement state" is maintained, and illustration is omitted here.

FIGS. 7 and 8 show the push button 3 of the operating tool 30.
FIGS. 9 and 10 show the initial state in which the push button 1 is pressed, and the state in which the operating tool 30 is pushed deeply. In these states, the outer ring 15
Are located in the direction of the operating shaft 20,
As a result of the leading edge of the front bush 61 riding on the projection 70 </ b> B, the front bush 61 and each lock gear 52 are pushed against the spring force of the compression spring 63 and displaced toward the base end of the operating shaft 20. Hereinafter, this state is referred to as a “second displacement state”.

Next, as shown in FIG. 17, the engagement mechanism includes ten recesses 64 formed on the inner peripheral surface of the cylindrical wall 54 of each dial 50, as shown in FIGS. 18 and 19. And ten protruding members 65 protruding from the outer peripheral surface of each lock gear 52. A recess 64 in each dial 50;
Since the corresponding engagement angle position of the lock gear 52 with the projection 65, that is, the fitting angle position of the dial 50 with respect to the lock gear 52, is equal to the number of codes, the unlocking code depends on the fitting angle position of both. And 10 settings are possible.

In both the "open state" of FIGS. 3 and 4 and the "closed state" of FIGS. 5 and 6, the operating shaft 20 is in the "first displacement state". The notch 64 is not engaged with the projection 65 of each lock gear 52, and the connection between each dial 50 and the lock gear 52 is cut off. Therefore, each dial 50 can be independently rotated both in the “open state” and in the “closed state”, and an arbitrary unlock code can be set.

When the operating tool 30 shown in FIGS. 7 to 10 is pushed, the operating shaft 20 is in the "second displacement state", and the recess 64 of each dial 50 engages with the projection 65 of each lock gear 52 to release the lock. A lock code string is stored.

(5) Configuration of Lock Mechanism 80 The lock mechanism 80 is operated and driven when all the codes of the dials 50 appearing in the window holes 5 are unlock codes (when an unlock code string is generated). The operation of the part 10 is allowed,
When the code of any one of the dials 50 appearing in (1) is not an unlock code (when the unlock code string is broken), the operation driving unit 1
0 is regulated.

The lock mechanism 80 of this embodiment has four protrusions 82 projecting from the peripheral surface of the operating shaft 20 and a protrusion provided on the inner peripheral surface at one end of each lock gear 52 in the axial direction. Child engaging groove 81 and a peripheral groove 83 provided on the inner peripheral surface at the other end of each lock gear 52 and the inner peripheral surface at the rear end of the front bush 61.
And the cam surface 19 formed on the outer peripheral surface of the outer cylinder 13.

Each of the protrusions 82 of the operating shaft 20 is engaged with the lock gear 52 in the "open state" of FIGS. 3 and 4 and the "closed state" of FIGS. The lock gear 52 is engaged in the groove 81 and regulates the rotation of each lock gear 52. At this time, since each dial 50 is disconnected from the lock gear 52, each dial 50 can be rotated to set and change the unlock code.

When the operating tool 30 is pushed, at the beginning of the pushing operation shown in FIGS. 7 and 8, each of the projections 82 of the operating shaft 20 escapes from the projection engaging groove 81 of each of the lock gears 52.
In the circumferential groove 83 of the adjacent lock gear 52 and the front bush 6
Each lock gear 52 is rotatable with respect to the operating shaft 20 because the lock gear 52 enters the one circumferential groove 83. At this time, each dial 50 is in a state of being engaged with the lock gear 52, and the unlock code is stored. 9 and 10 in which the operating tool 30 is pushed deeply, each dial 50 and each lock gear 52
Are rotated together with each other, so that each protrusion 82 and each lock gear 5
The two protrusion engaging grooves 81 are displaced, and a locked state is generated. If the user attempts to rotate the shooting 110 in the open state in this misaligned state, the displacement of the operating shaft 20 in the proximal direction is restricted by the misalignment between the projection 82 and the projection engaging groove 81, and the operation is not performed. The tip surface 21 of the shaft 20 is the valley 1 of the cam surface 19 of the outer cylinder 13.
8B, the outer cylinder 1 is integrated with the inner cylinder 12.
3 cannot rotate, and the operation of the shooting 110 is impossible.

(6) Operation Tool 30 and Operation Control Mechanism 40
As shown in FIGS. 11 and 12, the operation tool 30 has a push button 31 on the upper surface, and a first operation piece 32 having a tapered lower surface at one end of the lower surface, and a second end portion of the lower surface at the other end. , Four second operation pieces 33 are respectively protruded. The first operation piece 32 acts on the operation control mechanism 40, and the second operation piece 33
Acts on the dial forcing drive mechanism 90.

The operation control mechanism 40 includes an operation plate 42 that reciprocates in relation to the forward / reverse rotation of the operation drive unit 10 and the vertical movement of the operation tool 30, the outer cylinder 13 and the outer cylinder ring 15 of the operation drive unit 10. And an active mechanism 41 incorporated between them. The operation plate 42 has a rack gear 44 that meshes with a pinion gear 43 formed on the outer peripheral surface of the outer cylinder ring 15 of the operation drive unit 10, and a long hole-shaped opening 45 formed on the plate surface. A roller 46 is provided at the center of the length of the opening 45.
Are rotatably supported.

When the roller 46 is in the "open state" in FIGS. 3 and 4, the roller 46 is at a position displaced from below the first operation piece 32 of the operation tool 30. Therefore, even if the operation tool 30 is pushed down. The first operation piece 32 passes through the opening 45 and is in an idle-pressed state. In the “closed state” of FIGS. 5 and 6, since the roller 46 is located directly below the first operation piece 32 of the operation tool 30, when the operation tool 30 is pressed down,
The first operation piece 32 abuts against the roller 46 and pushes it to move the operation plate 42 as shown in FIG.

The active mechanism 41 is for activating the operation of the operation tool 30 on the operation plate 42.
A drive projection 14 protruding from an outer peripheral surface of an outer cylinder 13 of the operation drive unit 10 and an engagement groove 1 formed in an inner hole of the outer cylinder ring 15.
6, a pinion gear 43 formed on the outer peripheral surface of the outer cylinder ring 15, and a rack gear 44 provided on the operation plate 42. Outer cylinder 13 becomes inner cylinder 1 by locking operation of shooting 110
When the outer cylinder ring 15 is integrally rotated by a predetermined angle with a time delay, the operation plate 42 is moved by the engagement of the pinion gear 43 of the outer cylinder ring 15 and the rack gear 44 of the operation plate 42. Displaced by a fixed amount, the roller 46 of the operation plate 42 is located immediately below the first operation piece 32 of the operation tool 30. As a result, the subsequent operation of the operation tool 30 is activated.

When the operating tool 30 is pressed in this activated state, the first operating piece 32 is pressed by the roller 4 of the operating plate 42.
6, and the operation plate 42 is displaced. When the operation plate 42 is displaced, the rack gear 44 and the pinion gear 43
The outer cylinder ring 15 is rotated by the engagement with the outer ring 15, and the projection 70 </ b> B on the outer peripheral surface of the outer cylinder ring 15 is rotated in the direction of the operating shaft 20 to push up the front bush 61, and The operation of storing the lock code string is performed.

(8) Configuration of the forced dial drive mechanism 90 The forced dial drive mechanism 90 of this embodiment stores the set unlock code sequence when the operation tool 30 is operated during the locking operation. Later, by forcibly rotating each dial 50 to a predetermined angular position, the dial 50 is returned to an initial code sequence in which zeros are arranged in the four window holes 5, thereby breaking the alignment of the unlock code sequence. belongs to. Further, in this embodiment, when the operating tool 30 is operated after the unlocking operation is completed, similarly, in order to break the unlocking code string in the aligned state, each dial 50 is forcibly moved to a predetermined angular position. To return to the initial code sequence in which zeros are lined up in the four window holes 5. In this embodiment, each dial 50 is forcibly rotated to an angular position where zero appears in the window 5 of each dial 50.
The present invention is not limited to this, and a configuration in which another predetermined code appears in each window hole 5 may be used.

In order to realize the above-mentioned zero return operation,
In this embodiment, as shown in FIG. 14, two support shafts 91 and 92 are provided in parallel with the operation shaft 20, and the cams are provided at positions on the first support shaft 91 corresponding to the respective dials 50. The plate 93 is freely rotatably provided. Each cam plate 93
Are convex cam surfaces 93a and concave cam surfaces 93 every 90 degrees.
b are alternately arranged. A drive gear 94 is integrally formed on each cam plate 93, and each drive gear 94 is
0 driven gear 53. The gear ratio of the driving gear 94 and the driven gear 53 is set to 2: 1 so that the dial 50 makes one rotation while the cam plate 93 makes a half rotation.

On the second supporting shaft 91, a pressing member 95 having a shape as shown in FIG.
The pressing member 95 has four pressing pieces 96, and the pressing members 95 are positioned so that each pressing piece 96 corresponds to each cam plate 93. Each pressing piece 96 is for pressing the cam plate 93 to forcibly rotate the dial 50 to an angular position where it becomes zero, and the four second operating pieces 33 of the operating tool 30 The operating tool 30 corresponds to the pressing piece 96.
And the pressing member 95 are set in a positional relationship. The pressing member 95 is normally urged by a spring (not shown) in a direction in which each pressing piece 96 is separated from the cam plate 93.

FIG. 14 shows the state of the dial forcing drive mechanism 90 in the "open state" of FIGS. 3 and 4, that is, in the state where zero appears in the window hole 5. FIG. This "open state"
Then, the concave cam surface 93b of the cam plate 93 is
The pressing piece 96 is opposed to the pressing piece 96. FIG. 15 shows the state of the dial forcing drive mechanism 90 when the unlock code string is set, for example, when “5” appears in the window hole 5. In this state, the convex cam surface 93a of the cam plate 93 is
5 faces the pressing piece 96.

When the operating tool 30 is pushed deeply,
As shown by the dashed line in FIG. 2, the second operating piece 33 pushes and tilts the pressing piece 96 of the pressing member 95.
Abuts against the convex cam surface 93a of the cam plate 93. As a result, each cam plate 93 rotates to a position where the concave cam surface 93b faces the pressing piece 96 as shown in FIG. Since the driven gear 53 of the dial 50 meshes with the drive gear 94 of the cam plate 93, the dial 50 rotates with the rotation of the cam plate 93, and at the angular position where zero appears in the window hole 5 of the dial 50. The rotation of the dial 50 stops.

When the code lock device of the present invention is implemented, a mechanism or the like for intermittently operating each dial 50 to cause each code to appear and localize sequentially in the window hole 5 is incorporated. Therefore, the description is omitted here. Further, the operation tool 30, the operation control mechanism 40,
It goes without saying that the dial forcing drive mechanism 90 and the like are not limited to the configuration of the above-described embodiment. For example, operation tool 3
0 is not limited to the push button type as in this embodiment, but may be a lever type.

Next, a series of operations at the time of the locking operation and at the time of the unlocking operation of the code locking device having the above-described configuration will be described in detail. First, the operation at the time of the locking operation will be described. When the code locking device is in the “open state” shown in FIGS.
, And each lock gear 52 is in the “first displacement state” where it is most displaced toward the operation drive unit 10. In this state, since each dial 50 is in a freely rotatable state in which the engagement with each lock gear 52 is cut off, that is, in a state in which the recessed portion 64 of each dial 50 and the projection 65 of each lock gear 52 are released from engagement, The unlock code can be freely set.

Now, the dial operation plate 5 of each dial 50
After setting the unlock code string to an arbitrary unlock code string by rotating the shooting 110, the shooting 110 is rotated to the “closed state” position in FIG.
First, the inner cylinder 12 and the outer cylinder 13 rotate integrally, and after the outer cylinder ring 15 rotates by a predetermined angle, the outer cylinder ring 15 delays and rotates integrally by the remaining predetermined angle. The operation plate 42 of the operation control mechanism 40 is displaced by a predetermined amount by the rotation of the outer cylinder ring 15, and the roller 46 of the operation plate 42 is located directly below the first operation piece 32 of the operation tool 30. As a result, thereafter, the operation of the operation tool 30 on the storage mechanism 60 is activated. In addition,
As described above, the locking operation may be performed by rotating the shooting 110 after the operation of setting the unlock code string, or by rotating the shooting 110 first and then unlocking the shooting code. A column setting operation may be performed.

Next, when the push button 31 of the operating tool 30 is pressed,
The first operation piece 32 pushes the roller 46 of the operation plate 42 to displace the operation plate 42. This displacement causes the outer ring 15
Rotate, and the convex portion 70B of the outer cylinder ring 15 pushes the front bush 61, so that each lock gear 52 shifts to the “second displacement state” in which the lock gear 52 is displaced toward the base end of the operating shaft 20 (FIG. 7 and FIG. 7). (FIG. 8). In this state, each dial 50 is in a state of being engaged with each lock gear 52, that is, in a state in which the notch 64 of each dial 50 and the protrusion 65 of each lock gear 52 are engaged, and the set unlock code sequence is It is stored. In this state, the operating shaft 20 and each of the lock gears 52 are disconnected from each other by the protrusion 82 coming out of the protrusion engaging groove 81.

Further, when the push button 31 of the operating tool 30 is pressed deeply, the four second operating pieces 33 press the respective pressing pieces 96 of the pressing member 95, and the respective pressing pieces 96 push the respective cam plates 93 into a concave shape. The cam surface 93b is rotated to a position facing the pressing piece 96. The dial 50 is rotated in accordance with the rotation of the cam plate 93, and the rotation of each dial 50 is stopped at an angular position where zero appears in the window 5 of each dial 50. In this state,
Each of the protrusions 82 and the protrusion engaging groove 81 of each of the lock gears 52 are displaced from each other, and are in a locked state.

Next, the operation during the unlocking operation will be described.
When the code lock device is in the locked state, each dial 50 is in a state of being engaged with each of the lock gears 52, and each of the lock gears 52 is in a state of being disengaged with the operating shaft 20, and the set unlock code sequence is aligned. It is possible to do.

When the dial operation plate 51 of each dial 50 is rotated to align the unlock code strings, each lock gear 5
The position of the second protrusion engaging groove 84 and the position of the corresponding protrusion 82 on the operating shaft 20 match, and an unlocked state is generated. Next, when the photographing 110 is rotated, first, the inner cylinder 12 and the outer cylinder 13 are integrally rotated, and later, the outer cylinder ring 15 is integrally rotated, and the “open state” shown in FIGS. 3 and 4. Return to. In this “open state”, when the operating tool 30 is pressed, the dials 50 can be returned to zero by the action of the dial forcing drive mechanism 90.

[0054]

According to the first aspect of the present invention, at least an operating tool operated at the time of locking and an operation control mechanism for operating the storage mechanism in response to the operation of the operating tool are provided.
Since the operation control mechanism is provided with a mechanism for activating the operation of the operation tool by closing the operation drive unit, the user's intention can be set regardless of whether the unlock code sequence is set earlier or later. The same unlock code sequence can be appropriately set.

According to the second aspect of the present invention, since the unlock code string is forcibly broken by operating the operating tool, compared with the conventional mechanism linked to the operation for opening and closing the latch, The structure can be simplified, and a small and inexpensive code lock device can be obtained.

[Brief description of the drawings]

FIG. 1 is a plan view showing the appearance of a code lock device according to the present invention.

FIG. 2 is a side view showing the appearance of the code lock device according to the present invention.

FIG. 3 is a horizontal cross-sectional view showing an internal structure of the code lock device in an “open state”.

FIG. 4 is a vertical sectional view showing an internal structure of the code lock device in an “open state”.

FIG. 5 is a horizontal sectional view showing the internal structure of the code lock device in a “closed state”.

FIG. 6 is a vertical sectional view showing the internal structure of the code lock device in a “closed state”.

FIG. 7 is a horizontal sectional view when an operating tool showing the internal structure of the code lock device is operated.

FIG. 8 is a vertical cross-sectional view when operating the operating tool showing the internal structure of the code lock device.

FIG. 9 is a horizontal sectional view when the operating tool showing the internal structure of the code lock device is operated deeply.

FIG. 10 is a vertical sectional view when the operating tool showing the internal structure of the code lock device is operated deeply.

FIG. 11 is a sectional view showing a configuration of an operating tool and an operation plate.

FIG. 12 is a plan view showing a configuration of an operation tool and an operation plate.

FIG. 13 is a sectional view showing the operation of the operation tool and the operation plate.

FIG. 14 is a side view showing a configuration of a dial forced driving mechanism.

FIG. 15 is a side view showing the operation of the dial forced driving mechanism.

FIG. 16 is a side view showing the operation of the dial forcing drive mechanism.

FIG. 17 is a side view of the dial.

FIG. 18 is a side view of the lock gear.

FIG. 19 is a sectional view of a lock gear.

FIG. 20 is a plan view illustrating a configuration of a pressing member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Operating part 20 Operating axis 30 Operating tool 40 Operation control mechanism 41 Active mechanism 50 Dial 60 Storage mechanism 80 Lock mechanism 90 Dial forced drive mechanism

Claims (2)

(57) [Claims] 1. An operation drive unit driven by an operation for opening and closing a latch, and a plurality of units operated for setting an unlock code sequence when locking and aligning the unlock code sequence when unlocking. Dial, a storage mechanism for storing the set unlock code sequence, and unlocking by collapsing the unlock code sequence after operation of the storage mechanism to form a locked state and aligning the unlock code sequence in the locked state. A sign lock device having a lock mechanism for forming a state, comprising: at least an operating tool operated at the time of locking; and an operation control mechanism for operating the storage mechanism in response to the operation of the operating tool. The code lock device, wherein the control mechanism includes a mechanism for activating the operation of the operation tool by closing the operation drive unit. 2. An operation drive unit driven by an operation for opening and closing a latch, and a plurality of operation units for setting an unlock code string at the time of locking and aligning the unlock code string at the time of unlocking. Dial, a storage mechanism for storing the set unlock code sequence, and unlocking by forming the locked state by breaking the unlock code sequence after the operation of the storage mechanism and aligning the unlock code sequence in the locked state. A code lock device provided with a lock mechanism for forming a locked state, wherein at least an operating tool operated at the time of locking and an unlock code sequence set by operating each dial in response to the operation of the operating tool are forcibly broken. A dial forced driving mechanism, and an operation control mechanism that operates the storage mechanism before the dial forced driving mechanism responds to the operation of the operating tool, and the operation control mechanism includes Closed Code lock device comprising a mechanism for activating the operation of the operating member by work.