JP2001200668A - Door lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door lock device excellent in crime preventing effect by closing the operation portion of a door lock with a protective cover, and preventing a door from being opened by only a duplicate key. SOLUTION: The keyway 10a of a cylinder lock 10 forming the door lock is closed with the protective cover 41. This door lock device is provided with a lock member 30 for keeping the protective cover 41 in a closed state and a dial lock 70 for regulating the action of the lock member 30 kept at the coupled state with the protective cover 41. The dial lock 70 is provided with an action shaft made reciprocatable by unlocking and made non-reciprocatable by locking. One end of the action shaft forms a stopper enabling the action of the lock member 30 in the reciprocatable state of the action shaft and disabling the action of the lock member 30 in the non-reciprocatable state of the action shaft.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock device used for a vending machine or a ticket vending machine, and more particularly to a door lock device having a protective cover for closing an operation portion of a door lock. About.

[0002]

2. Description of the Related Art Conventionally, as a lock device for a door of a vending machine,
There have been proposed ones in which a cylinder lock is simply incorporated in a door, and one in which a combination of a cylinder lock and a handle for opening and closing a door is incorporated in a door. In this type of door lock device, when a proper key is inserted into a key hole of a cylinder lock and unlocking or locking operation is performed, the latch is rotated forward and reverse, and is provided in a main body of the vending machine. The door is disengaged from the receiving bracket, and the door can be opened and closed.

[0003]

In the above-mentioned door lock device, since the keyhole of the cylinder lock is exposed, the maliciousness that the tip of a tool such as an electric drill is inserted into the keyhole to break the cylinder lock is obtained. Incidents are occurring frequently. In addition, the replenishment of the vending machine's sales items and collection of the sales amount are performed by a specific contractor, but the person concerned retires after manufacturing the vending machine's lock key, and after retirement, automatically sells using the lock. Criminal acts such as fraudulent goods and money from machines have also occurred.

[0004] The present invention has been made in view of the above problems, and covers the operation portion of the door lock with a protective cover.
An object of the present invention is to provide a door lock device having an excellent security effect by adopting a configuration in which a door cannot be opened only by having a duplicate key.

[0005]

According to a first aspect of the present invention, there is provided a door lock device for locking a door, an openable / closable protective cover for closing an operation portion of the door lock, and a protective cover. A lock member that can be engaged with and disengaged from the protective cover in order to maintain the closed state, and a dial lock for restricting the operation of the lock member that is engaged with the protective cover. The dial lock includes a plurality of dials, a storage mechanism for storing the codes of the respective dials for unlocking, and an operating shaft that can reciprocate when unlocked and cannot reciprocate when locked. One end of the operating shaft constitutes a stopper which enables the operation of the lock member in a state where the operating shaft can reciprocate, and disables the operation of the lock member in a state where the reciprocating movement of the operating shaft is not possible.

In the invention of claim 2, the door lock is a cylinder lock which is locked and unlocked by a key operation, and a key hole of the cylinder lock is closed with a protective cover.

According to the third aspect of the present invention, the door lock is an electronic lock which is locked and unlocked by a key operation, and a key operation portion of the electronic lock is closed with a protective cover.

[0008] In the invention according to claim 4, the dial lock is
The code of each dial for unlocking can be arbitrarily set by dial operation.

According to the invention of claim 5, the lock member is
The protective cover is configured to be disengaged by opening the protective cover in a state where the operating shaft can reciprocate.

According to a sixth aspect of the present invention, there is provided a door lock device, wherein a cylinder lock for locking a door, an openable / closable protective cover for closing a keyhole of the cylinder lock, and a protective cover which is kept closed. And a dial lock for restricting the operation of the lock member engaged with the protective cover and the rotation of the outer cylinder of the cylinder lock. The dial lock includes a plurality of dials, a storage mechanism for storing the codes of the respective dials for unlocking, and an operating shaft that can reciprocate when unlocked and cannot reciprocate when locked. One end of the operating shaft,
The operation of the lock member and the rotation of the outer cylinder of the cylinder lock are enabled in a state where the reciprocation of the operating shaft is possible, and the operation of the lock member and the outer cylinder of the cylinder lock are enabled in a state where the reciprocation of the operation shaft is not possible. A stopper that disables rotation is configured.

According to a seventh aspect of the present invention, there is provided a door lock device, comprising: a door lock for locking a door; an openable / closable protection cover for closing an operation portion of the door lock; and a protection cover held in a closed state. A locking member that can be disengaged from the protective cover to
A dial lock for restricting the operation of the lock member engaged with the protective cover, a door opening / closing operation handle capable of protruding and retracting to the front of the door, and holding the handle so as not to protrude from the front of the door. And a holding member. The dial lock includes a plurality of dials, a storage mechanism for storing the codes of the respective dials for unlocking, and an operating shaft that can reciprocate when unlocked and cannot reciprocate when locked. One end of the operating shaft constitutes a stopper which enables the operation of the lock member in a state where the operating shaft can reciprocate, and disables the operation of the lock member in a state where the reciprocating movement of the operating shaft is not possible.
The other end of the operating shaft constitutes an operation unit for releasing the holding state of the holding member by the operation of the operating shaft.

[0012]

In the door lock device of the first aspect, when the dial lock is in the locked state, the operation part of the door lock is held in a state closed by the protective cover, so that the door lock is unlocked. Can not do. Each dial of the dial lock is operated, and the code of each dial for unlocking (hereinafter, referred to as "unlock code").
, The dial lock is unlocked and the operating shaft can reciprocate. As a result, the lock member in the engaged state with the protective cover can be operated. By operating the lock member and opening the protective cover, the operation part of the door lock appears and the lock operation can be performed.

In the door lock device according to the second aspect, when the dial lock is in the locked state, the keyhole of the cylinder lock is kept closed by the protective cover, so that the cylinder lock is unlocked. Can not do. After unlocking the dial lock with the unlocking codes aligned, when the lock member is operated to open the protective cover, the keyhole of the cylinder lock appears, and the key can be inserted into the keyhole to perform the unlocking operation.

In the door lock device according to the third aspect, when the dial lock is in the locked state, the key operating portion of the electronic lock is held in a state of being closed by the protective cover. Can not do it. After unlocking the dial lock with the unlocking codes aligned, when the lock member is operated to open the protective cover, the key operating portion of the electronic lock appears, and the unlocking operation can be performed by the key operating portion.

In the door lock device according to the fourth aspect, the unlock code of the dial lock can be set arbitrarily. Therefore, when the person managing the vending machine retires, the dial of the dial lock is operated. To change the unlock code.

According to the fifth aspect of the present invention, when the unlocking code is aligned and the dial lock is unlocked and then the protective cover is opened, the lock member is disengaged from the protective cover.

In the door lock device according to the sixth aspect, when the dial lock is in the locked state, the keyhole of the cylinder lock is kept closed by the protective cover, so that the cylinder lock is unlocked. Can not do. When the dial lock is in the locked state, the rotation of the outer cylinder portion of the cylinder lock is restricted. Therefore, even if the protective cover is broken and the key is inserted into the keyhole, the key must be turned. And the cylinder lock cannot be unlocked. When the unlocking codes are aligned by operating the dials of the dial lock, the dial lock is unlocked and the operating shaft can reciprocate. As a result, the operation of the lock member engaged with the protective cover becomes possible. By operating the lock member and opening the protective cover, the keyhole of the cylinder lock appears and the key can be operated. Also, by unlocking the dial lock,
Since the outer cylinder of the cylinder lock can be rotated, the key inserted into the key hole of the cylinder lock can be turned, and the cylinder lock can be unlocked.

In the door lock device of the present invention, when the dial lock is in the locked state, the operation portion of the door lock is held in a state closed by the protective cover, so that the door lock is unlocked. Can not do. In addition, the handle for opening and closing the door is held by the holding member so as not to protrude to the front of the door, so that the handle cannot be operated. By operating each dial of the dial lock and aligning the unlock code, the dial lock is unlocked and the operating shaft can reciprocate, and as a result, the lock member engaged with the protective cover can operate. Therefore, by operating the lock member and opening the protective cover, the operation part of the door lock appears and the unlock operation can be performed. Further, since the holding state of the holding member is released by the operation of the operation shaft, the handle for opening and closing the door projects from the front surface of the door, and the door can be opened with the handle.

[0019]

1 and 2 show the appearance of a door lock device 100 according to an embodiment of the present invention. 3 and 4 show the internal structure of the door lock device 100. FIG. The door lock device 100 is attached to a vending machine door, and has a latch 101 that rotates forward and backward within a range of 90 degrees. The latch 101 is engaged and disengaged from a receiving bracket 102 attached to the main body of the vending machine by locking and unlocking operations.

The door lock device 100 shown in FIG.
The front opening is closed by the front plate 1 and a flat protective cover 41 is provided on the front surface of the front plate 1. Both ends of the protective cover 41 are slidably engaged with rails 6 and 6 formed on both sides of the front plate 1.

Inside the case body 9, a cylinder lock 10 constituting a door lock, a lock member 30 for restricting the opening of the protective cover 41, various mechanisms constituting a dial lock 70, and a door opening / closing operation. The handle 110 is incorporated.
The keyhole 10 a of the cylinder lock 10 faces a circular opening 2 formed in the front plate 1.
a is closed from above by the protective cover 41. The four dials 50 constituting the dial lock 70 have outer peripheral surfaces projecting from four window holes 4 formed in the front plate 1. Reference numerals “0” to “9” are shown on the outer peripheral surface of each dial 50.

In this embodiment, a cylinder lock 10 which is locked and unlocked by a key operation is used as a door lock, but instead of this cylinder lock 10, an electronic lock which is locked and unlocked by a key operation is used. It is also possible to use. When an electronic lock is used, the key operation unit is closed by the protective cover 41.

Hereinafter, in addition to the cylinder lock 10, the dial lock 70, the protective cover 41, the lock member 30, and the handle 110 for opening and closing the door, a holding member for holding the handle 110 so as not to protrude from the front of the door. Item 91 will be described in detail by dividing the items.

In the following description, a state in which the latch 101 is engaged with the receiving bracket 102 is referred to as a “door closed state”, and a state in which the latch 101 is disengaged from the receiving bracket 102 is referred to as a “door open state”. A state in which the protective cover 41 closes the keyhole 10a of the cylinder lock 10 is referred to as a “cover closed state”. A state in which the “cover closed state” is locked and held by the dial lock 70 is a “cover locked state”. Dial lock 7
The state where 0 is unlocked is the “cover unlocked state”
That. On the other hand, the protective cover 41 is opened and the cylinder lock 10 is opened.
Is referred to as a “cover open state”. Further, an operation from the “cover open state” to the “cover lock state” is referred to as a “cover close operation”, and an operation from the “cover lock state” to the “cover open state” is referred to as a “cover open operation”.

FIGS. 1 to 10 show a "door closed state", and FIGS. 11 and 12 show a "door open state". 1 to 4 show a “cover locked state”, FIGS. 5 and 6 show a “cover unlocked state”, and FIGS. 7 and 8 show a “cover open operation” state. 9 and 10
Indicates the “cover open state”. In addition, FIG.
FIG. 16 shows a state when the unlock code is set or changed.

(1) Cylinder Lock 10 The cylinder lock 10 includes an inner cylinder 11 which is integrally rotated by an unlocking or locking operation with a key 103, and a rotatable front outer portion which is fitted on the outer periphery of the inner cylinder 11. It comprises a cylinder 12 and a non-rotatable rear outer cylinder 13 fitted on the outer periphery of the inner cylinder 11.

Although not shown inside the inner cylinder 11,
A lock mechanism including a plurality of disk tumblers that is operated by inserting the key 103 into the keyhole 10a is incorporated. In a state where the key 103 is not inserted, a part of the disk tumbler is engaged with a groove provided on the inner peripheral surface of the rear outer cylinder 13, and the inner cylinder 11 is integrated with the rear outer cylinder 13 to rotate. Be regulated. When the key 103 is inserted, a part of the disk tumbler is actuated to disengage from the groove of the rear outer cylinder 13, so that the inner cylinder 12 can be rotated.

When the key 103 is not inserted, the front outer cylinder 12 is disengaged from the inner cylinder 11 because the disk tumblers are aligned. When the key 103 is inserted, the disk tumbler operates and engages with the groove of the front outer cylinder 12 so that the inner cylinder 11 and the front outer cylinder 12 are integrated, so that they can rotate integrally. If the master key is used when the key 103 is lost, the engagement with the front outer cylinder 12 of the disk tumbler is released, and only the inner cylinder 11 can rotate.

(2) Dial Lock 70 The dial lock 70 comprises four dials 50 rotatably mounted on the operating shaft 20 via lock gears 55. The lock mechanism 80 and the storage mechanism 60 are provided. And

The operating shaft 20 has a hemispherical tip surface 21 which abuts against the outer peripheral surface of the front outer cylinder 12. A concave portion 16 is formed on the outer peripheral surface of the front outer cylinder 12 at a position facing the distal end surface 21 of the operating shaft 20. A support shaft 22 protrudes from a base end surface of the operation shaft 20, and the support shaft 22 is supported by a rear bush 62. The tip of the operating shaft 20 is supported by the front bush 61. The operating shaft 20 can reciprocate in a direction perpendicular to the cylinder lock 10 in an “unlocked state” described later. A return spring 2 is provided on the support shaft 22.
The operating shaft 20 is constantly urged toward the cylinder lock 10 by its spring force. Four protrusions 82 constituting the lock mechanism 80 are provided at the same angular position on the shaft peripheral surface of the operation shaft 20 at regular intervals.

As shown in FIGS. 17 and 18, each of the dials 50 has a dial operation portion 51 having a code “0” to “9” on one outer peripheral surface and a dial operating portion 51 on the other outer peripheral surface. The boss portions 52 each having a gear surface are integrally formed.

The lock mechanism 80 controls the operation of the lock member 30 and the rotation of the front outer cylinder 12 of the cylinder lock 10 so that all dials 50 appearing in the window holes 4 are unlocked. When the code is a code, reciprocation of the operating shaft 20 is enabled. When the code of any of the dials 50 appearing in each window hole 4 is not an unlocking code, the reciprocation of the operating shaft 20 is disabled. The lock mechanism 80 of this embodiment includes the operating shaft 2
19 and 20, a circumferential groove 83 provided on the inner circumferential surface at one end of each lock gear 55, and An inner peripheral surface and a protrusion engaging groove 81 provided in the inner peripheral surface of the front bush 61 in the axial direction.

The operating shaft 20 receives the spring force of the return spring 26 so that the distal end surface 21 enters the concave portion 16 of the front outer cylinder 12. Each of the protrusions 82 of the operating shaft 20 is located in the circumferential groove 83 of each lock gear 55 in the “cover lock state” shown in FIGS. To be engaged between
The reciprocation of the operating shaft 20 is disabled. Hereinafter, the operating shaft 2
A state in which the reciprocation of 0 is restricted is referred to as a “lock restriction state”.

In this "lock-restricted state", each dial 50 is integrated with each lock gear 55, and when each dial 50 is rotated to align the unlocking code, as shown in FIGS. The protrusion engaging groove 8 of each lock gear 55
1 are aligned on each of the protrusions 82 of the operating shaft 20,
Reciprocation is possible. Hereinafter, the state in which the operation shaft 20 can reciprocate is referred to as “unlocked state”.

One end of the operating shaft 20 having the tip end surface 21
The operation of the lock member 30 and the front outer cylinder 12 of the cylinder lock 10 in the “unlocked state” where the operation shaft 20 can reciprocate.
And a stopper that disables the operation of the lock member 30 and the rotation of the front outer cylinder 12 of the cylinder lock 10 in the “locking restricted state” in which the reciprocation of the operating shaft 20 is not possible. . The other end of the operating shaft 20 having the support shaft 22 is connected to the handle 1 for opening and closing the door by the operation of the operating shaft 20.
An operation unit for releasing the holding state of the ten holding members 91 is configured.

The storage mechanism 60 is a mechanism for freely setting and storing the unlock code of each dial 50, and a displacement mechanism for reciprocating each lock gear 55 by operating the operating tool 57, An engagement mechanism for setting the engagement state between the dial 50 and each lock gear 55 is provided.

The displacement mechanism includes an operating tool 57 projecting to the back of the case body 9, a front bush 61 slidably fitted to the tip of the operating shaft 20, and each lock gear 55 connected to the front bush 61. And a compression spring 68 that urges the rear bush 62 in the direction of the rear bush 62.

The operating tool 57 is a shaft having a lower end surface formed on a tapered pressing surface 58, and is supported by the case body 9 so as to be movable by a predetermined stroke. The pressing surface 58 of the operating tool 57 comes into contact with a convex portion 63 protruding from the outer peripheral surface of the rear bush 62. Front bush 61
The rear end edge abuts on the leading lock gear 55 due to the spring force of the compression spring 68, and the opened front end edge is
It is arranged so as to face the second concave portion 16. A front end surface 21 of the operating shaft 20 protrudes from a front end opening of the front bush 61.

When the operating tool 57 is pushed, as shown in FIGS. 13 and 14, the pressing surface 58 of the operating tool 57 presses the convex portion 63 of the rear bush 62, and the rear bush 62 is compressed by the compression spring 68. It is urged toward the cylinder lock 10 against the spring force. Each lock gear 55 and the front bush 61 are pushed by the rear bush 62 and displaced toward the distal end of the operating shaft 20.
Go into 6. In this state, each lock gear 55 is most displaced toward the cylinder lock 10.

When the pressing operation of the operating tool 57 is released, FIG.
As shown in FIG. 16 and FIG. 16, the distal end edge of the front bush 61 is
6, the lock gear 55 and the rear bush 62 return to the positions before the operation of the operating tool 57. At this time, the convex portion 63 of the rear bush 62 pushes up the pressing surface 58 of the operation tool 57, and the operation tool 57 returns to the standby position.

Next, as shown in FIG. 18, the engagement mechanism includes ten recesses 64 formed on the inner peripheral surface of each dial 50 and, as shown in FIGS. It is composed of ten protrusions 65 protruding from the outer peripheral surface. The number of engagement angles between the recesses 64 of each dial 50 and the corresponding protrusion 65 of the lock gear 55, that is, the number of engagement angles of the dial 50 with respect to the lock gear 55 is equal to the number of codes. 10 settings can be made according to the fitting angle positions of the two.

When the operating tool 57 is pushed, the operating shaft 20
On the other hand, since the front bush 61 and each lock gear 55 are in a displaced state, the concave portion 64 of each dial 50 is not engaged with the projection 65 of each lock gear 55, and the engagement between each dial 50 and the lock gear 55 is It is cut. Therefore, each dial 50 can rotate independently, and can set an arbitrary unlock code.

When the pressing operation of the operating tool 57 is released, FIG.
As shown in FIG. 16, the front bush 61 pushes back each lock gear 55 by the spring force of the compression spring 68 to return to the original position. In this state, each dial 50 is engaged with each lock gear 55, that is, each dial 50
The recessed portion 64 of 0 and the projection 65 of each lock gear 55 are engaged with each other, and the set unlocking code of each dial 50 is stored and held.

(3) Protective Cover 41 The protective cover 41 is for closing the key hole 10a of the cylinder lock 10, and has an engaging hole 42 with which the below-described engaging portion 31 of the lock member 20 engages and disengages from the inside. It is opened through the board surface. The engagement holes 42 have inclined surfaces 44 a, 44 in which the hole periphery extends downward from the outer surface to the inner surface of the protective cover 41.
b.

When the lock mechanism 80 of the dial lock 70 is in the "unlocked state", the protective cover 41 can be slid for opening. On the other hand, the lock mechanism 8
When 0 is in the “locking restricted state”, the slide operation for opening is impossible. In addition, the protective cover 4 of this embodiment
Reference numeral 1 denotes a system in which the keyhole 10a is opened and closed by a sliding operation, but is not limited thereto.
A type that opens and closes a may be used.

(4) Lock Member 30 The lock member 30 is configured to be capable of engaging and disengaging from the protective cover 41 in order to hold the protective cover 41 in a closed state. As shown in FIG. The engagement portion 31 is formed at one end of the plate 33 via a retaining portion 36. The engaging portion 31 is engaged with and disengaged from the engaging hole 42 of the protective cover 41, and includes inclined surfaces 31a and 31b along the inclined surfaces 44a and 44b of the engaging hole 42. The reciprocating plate 33 reciprocates along the support groove 18 formed in the front outer cylinder 12 of the cylinder lock 10 as shown in FIG. Tip surface 2 of operating shaft 20 of dial lock 70
A tapered pressing surface 34 that abuts on 1 is formed.

(5) Handle 110 for Opening and Closing Door and Holding Member 91 As shown in FIGS. 4 and 23, the handle 110 is an operation image 11 which protrudes outward from the front end of the cylindrical shaft body.
1 is provided at the rear end with a step 112 for engaging and disengaging the holding member 91,
Each is integrally formed. The handle 110 is accommodated and arranged inside the case body 9 so that the shooting 111 can protrude and retract from the circular opening 5 formed in the front plate 1. The compression spring 113 is interposed between the
To the front plate 1 side.

The holding member 91 is used to take a picture 1 of the handle 110.
Reference numeral 11 denotes a member for holding the projection 11 so as not to protrude from the front plate 1, and is provided at a position behind the support shaft 22 of the operation shaft 20. A support shaft 93 is provided substantially at the center of the length of the holding member 91.
The support shaft 93 is rotatably supported by the case body 9. A spring 92 is mounted on the holding member 91,
By hooking one end 95 on the step 112 of the handle 110, the handle 110 is held so that the image 111 does not protrude from the front plate 1. Holding member 91
The other end 94 is opposed to the support shaft 22 of the operating shaft 20. When the operating shaft 20 operates and the support shaft 22 presses the end 94 of the holding member 91, the holding member 91 rotates. The engagement between the end portion 95 and the step portion 112 of the handle 110 is released, and the handle 110 is released from the restrained state.

Next, the door lock device 100 having the above-described configuration will be described.
, A series of operations during the unlocking operation and the locking operation will be described. First, the operation at the time of the unlocking operation will be described. When the door lock device 100 is in the “cover locked state” shown in FIGS. 1 to 4, the unlock code of each dial 50 of the dial lock 70 is aligned. Therefore, the operating shaft 20 is in a “locking restricted state” in which reciprocation of the operating shaft 20 is impossible. In this state, the protection cover 41 is held closed by the lock member 30, so that the protection cover 41 cannot be slid, and the keyhole 10 a of the cylinder lock 10 is closed by the protection cover 41. When each dial 50 is rotated and aligned with a predetermined unlocking code as shown in FIGS. 5 and 6, the dial lock 70 is in the “unlocked state” in which the operating shaft 20 can reciprocate, and the protective cover 41 can be operated by sliding.

When the protective cover 41 is slid, the engaging portion 31 of the lock member 30 initially engaged with the engaging hole 42 of the protective cover 41 has its inclined surface 31 a As a result, the lock member 30 moves along the support groove 18 of the front outer cylinder 12,
The pressing surface 34 of the lock member 30 is
push.

When the protective cover 41 is further slid, the engaging portion 31 of the lock member 30 is retracted inside the protective cover 41 as shown in FIGS.
As a result, the front end 21 of the support shaft 22 is completely pushed by the pressing surface 34 of the lock member 30, and the rear end of the support shaft 22 abuts on the end 94 of the holding member 91 of the handle 110. As a result, the holding member 91 moves against the support shaft 9 against the spring force of the spring 92.
3 and the end 95 and the step 112 of the handle 110 are disengaged. As a result, the handle 110
Project from the opening 5 of the front panel 1 to the front by the spring force of the compression spring 113.

When the protective cover 41 is slid to the final position to reach the “cover open state” shown in FIGS. 9 and 10, the engaging portion 31 of the lock member 30 is released from the state pressed by the protective cover 41. As a result, the operating shaft 20
Is biased toward the cylinder lock 10 by the spring force of the return spring 26, and the distal end surface 21 of the operating shaft 20 pushes up the lock member 30, and the recess 1 of the front outer cylinder 12 of the cylinder lock 10.
6, the lock member 30 returns to the original position.

When the protective cover 41 is opened, the keyhole 10a of the cylinder lock 10 appears outside.
The key 103 can be operated by inserting the key 103 into the key 0a. When the key is inserted, the distal end surface 21 of the operating shaft 20
As shown in FIG. 22 (1), the key 103 is inserted into the recess 16 of the front outer cylinder 12, but when the key 103 is rotated in the unlocking direction, the inner cylinder 11 and the front part are rotated as shown in FIG. Outer cylinder 12
Are rotated integrally, and the operating shaft 2 is opposed to the spring force of the return spring 26.
0 is pressed by the inclined surface 17 continuing to the concave portion 16. When the key 103 is fully turned by 90 degrees, the distal end surface 21 of the operating shaft 20 rides on the outer peripheral surface of the front outer cylinder 12 as shown in FIG. 22C, and the operating shaft 20 is further pushed.

Even if the protective cover 41 is destroyed or illegally removed and the cylinder lock 10 is unlocked, as long as the dial lock 70 is in the locked state,
Since the reciprocation of the operating shaft 20 is impossible, the cylinder lock 10
Unlocking operation is blocked.

Next, the operation at the time of the locking operation will be described. When the key 103 is rotated in the locking direction, the inner cylinder 11 is rotated.
In addition, the front outer cylinder 12 rotates integrally, and the distal end surface 21 of the operating shaft 20 moves along the inclined surface 17 from the outer peripheral surface of the front outer cylinder 12 by the spring force of the return spring 26, and enters the recess 16. Get in.

Next, when the protective cover 41 is slid in the opposite direction to the above, the protective cover 41 presses the lock member 30 in the direction of the operating shaft 20, and then the engaging portion 31 of the lock member 30 engages with the protective cover 41. The hole 42 is engaged. Thereafter, when the handle 110 is pushed, the end 94 of the holding member 91 is engaged with the step 112 of the handle 110, and the handle 110 is held in the pushed state. Dial lock 7
Since each of the 0 dials 50 is in a state of being engaged with each of the lock gears 55 and each of the lock gears 55 is in a state of being disengaged with the operating shaft 20, the respective dials 50 are operated to obtain the same unlocking code. The dial lock 70 is brought into a locked state by making it go out of order.

In the above-described embodiment, the front end of the operating shaft 20 of the dial lock 70 is engaged with the recess 16 formed in the outer cylinder of the cylinder lock 10 to engage the cylinder lock 10 with the dial lock 70. This prevents the cylinder lock 10 from being unlocked even if the cylinder lock 10 is unlocked after the protective cover 41 is broken. In order to facilitate the adjustment work, it is also possible to adopt a configuration in which there is no relation between the cylinder lock 10 and the dial lock 70 as in the embodiment shown in FIG.

The lock member 135 in the embodiment shown in FIG.
Is a shaft-like body, and an engagement portion 136 is formed at one end thereof, and a concave groove 137 is formed at a shaft peripheral surface at the other end thereof. The engaging portion 136 of the lock member 135 is engaged with an engaging groove 142 formed in the protective cover 141, and the distal end of the operating shaft 20 is engaged in the concave groove 137.

When the protective cover 141 is slid in the “unlocked state” in which the reciprocating movement of the operating shaft 20 is enabled, the engaging portion 136 of the lock member 135 and the protective cover 1 are moved.
41 is disengaged from the engagement groove 142 and the lock member 135 is released.
Is pushed in the direction of the operating shaft 20. Thereby, the groove 13
7, the distal end of the operating shaft 20 is pushed out, so that the operating shaft 20 handles the handle 110 against the spring force of the return spring 26.
Is biased in the direction of.

[0060]

According to the present invention, the operation portion of the door lock is closed by the protective cover, and the protective cover can be opened by unlocking the dial lock. Since the cover cannot be opened, vandalism against the operation part of the door lock can be prevented.

According to the second aspect of the present invention, since the door lock is formed of a cylinder lock and the keyhole of the cylinder lock is covered with the protective cover, destruction of the keyhole of the cylinder lock can be prevented.

According to the third aspect of the present invention, since the door lock is formed of an electronic lock and the key operation portion of the electronic lock is covered with the protective cover, destruction of the key operation portion of the electronic lock can be prevented.

According to the invention of claim 4, since the unlock code of the dial lock can be set arbitrarily, the unlock code can be changed as required, thereby making it possible for a person who has retired to use the duplicate key and the like. Can be prevented.

According to the fifth aspect of the present invention, the lock member and the protective cover are disengaged by the opening operation of the protective cover, so that a special operation for releasing the engagement between the lock member and the unlocking member when unlocking is unnecessary. Yes, and the unlocking operation is easy.

In the invention of claim 6, since the protection cover can be opened by unlocking the dial lock and the door lock can be unlocked, even if the protection cover is broken and the door lock is to be unlocked. As long as the dial lock cannot be unlocked, the door lock cannot be unlocked, and the security effect is greatly enhanced.

According to the seventh aspect of the present invention, the handle for opening and closing the door can be used when the dial lock is unlocked. Therefore, unless the dial lock is unlocked, the handle operation cannot be performed, and the security effect is enhanced. Can be

[Brief description of the drawings]

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

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

FIG. 3 is a horizontal sectional view of the door lock device in a “cover locked state”.

FIG. 4 is a vertical cross-sectional view of the door locking device in a “cover locked state”.

FIG. 5 is a horizontal sectional view of the door lock device in a “cover unlocked state”.

FIG. 6 is a vertical sectional view of the door locking device in a “cover unlocked state”.

FIG. 7 is a horizontal sectional view of the door lock device at the time of “cover opening operation”.

FIG. 8 is a vertical sectional view of the door lock device at the time of “cover opening operation”.

FIG. 9 is a horizontal cross-sectional view of the door lock device in the “cover open state”.

FIG. 10 is a vertical cross-sectional view of the door lock device in the “cover open state”.

FIG. 11 is a horizontal sectional view of the door lock device in the “door open state”.

FIG. 12 is a vertical sectional view of the door lock device in the “door open state”.

FIG. 13 is a horizontal sectional view of the door lock device for explaining the storage operation of the dial lock.

FIG. 14 is a vertical sectional view of a door lock device for explaining a storage operation of the dial lock.

FIG. 15 is a horizontal sectional view of a door lock device for explaining a storage operation of the dial lock.

FIG. 16 is a vertical sectional view of a door lock device for explaining a storage operation of the dial lock.

FIG. 17 is a side view of the dial.

FIG. 18 is a plan view of the dial.

FIG. 19 is a side view of the lock gear.

FIG. 20 is a sectional view of a lock gear.

FIG. 21 is a perspective view of a lock member.

FIG. 22 is a plan view showing the operation of the cylinder lock.

FIG. 23 is a front view in which a part of the door lock device is broken.

FIG. 24 is a partially cutaway plan view of another embodiment of the door lock device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Cylinder lock 11 Inner cylinder 12 Front outer cylinder 13 Rear outer cylinder 20 Operating shaft 30 Lock member 41 Protective cover 70 Dial lock 60 Storage mechanism 91 Holding member 110 Handle

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) E05B 65/06 E05B 65/06 A G07F 9/10 G07F 9/10 B

Claims (7)

[Claims] 1. A door lock device attached to a door, comprising: a door lock for locking the door; an openable and closable protection cover for closing an operation part of the door lock; and a state in which the protection cover is closed. A lock member capable of engaging and disengaging from the protective cover for holding; and a dial lock for restricting operation of the lock member engaged with the protective cover, wherein the dial lock includes a plurality of dials, It has a storage mechanism for storing the code of each dial for the lock, and an operating shaft that can reciprocate by unlocking and cannot reciprocate by locking, and one end of the operating shaft reciprocates the operating shaft. A lock device for a door, comprising a stopper that enables the operation of the lock member in a state where the operation is possible, and disables the operation of the lock member in a state where the reciprocation of the operation shaft is impossible. 2. The door lock device according to claim 1, wherein the door lock is a cylinder lock which is locked and unlocked by a key operation, and a key hole of the cylinder lock is closed with a protective cover. 3. The door lock device according to claim 1, wherein the door lock is an electronic lock that is locked and unlocked by a key operation, and a key operation unit of the electronic lock is closed with a protective cover. 4. The door lock device according to claim 1, wherein a code of each dial for unlocking the dial lock can be arbitrarily set by a dial operation. 5. The door according to claim 1, wherein the lock member is configured to be disengaged from the protective cover by opening the protective cover in a state where the operating shaft can reciprocate. Locking device. 6. A door lock device attached to a door, comprising: a cylinder lock for locking the door; an openable and closable protective cover for closing a key hole of the cylinder lock; and a closed state of the protective cover. A lock member that can be engaged and disengaged from the protective cover for holding, and a dial lock for restricting operation of the lock member engaged with the protective cover and rotation of the outer cylinder portion of the cylinder lock, The lock includes a plurality of dials, a storage mechanism that stores a code of each dial for unlocking, and an operating shaft that can reciprocate by unlocking and cannot reciprocate by locking, One end of the operating shaft allows the operation of the lock member and the rotation of the outer cylinder portion of the cylinder lock in a state where the operating shaft can reciprocate, and the operation of the lock member and the cylinder when the operating shaft cannot reciprocate. Turn the outer cylinder of the lock A door lock device that constitutes a stopper that disables movement. 7. A door lock device attached to a door, comprising: a door lock for locking the door; an openable / closable protection cover for closing an operation portion of the door lock; and a state in which the protection cover is closed. A lock member that can be disengaged from the protective cover to hold it, a dial lock for restricting the operation of the lock member in engagement with the protective cover, and a door opening and closing operation that can appear and disappear from the front of the door. The dial lock includes a plurality of dials, a storage mechanism for storing a code of each dial for unlocking, and an unlocking mechanism. And an operating shaft that is reciprocable by locking and cannot be reciprocated by locking, and one end of the operating shaft enables the operation of the lock member in a state where the operating shaft can reciprocate, Locked when reciprocation is not possible A lock device for a door, wherein a stopper for disabling operation of a member is configured, and the other end of the operation shaft constitutes an operation unit for releasing the holding state of the holding member by operation of the operation shaft.