JPH0626704Y2 - Electric lock - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention links the locking and unlocking mechanism by sending electric signals by keys to three solenoids respectively, and only a person with a specific key can lock and unlock. The present invention relates to an electric lock suitable for use in a hotel or the like.

[Conventional technology]

Conventionally, there is known an electric lock that can be locked / unlocked in response to only one signal by one or more keys.

[Problems to be solved by the invention]

However, for example, in the case of hotel locks, a guest key used by guests, a master key that is used by the front desk and is effective for many rooms, an emergency key that locks / unlocks indoors in an emergency, or a display key that locks / unlocks outdoors. , It is necessary to enable locking and unlocking only in specific cases with a key held by a specific person, but in that case the conventional electric lock cannot handle it, and there is a problem that it can not be used,
There is a problem that when the guest goes out, there is a feeling of uneasiness because Kannuki cannot be operated from outside the room.

The present invention has been made as a result of studies in view of the above conventional problems, and sends a signal by an optical card key, a magnetic card key, or a key by other electrical means to three solenoids to lock and unlock the mechanism. It is an object of the present invention to provide an electric lock that activates a key and can be locked and unlocked only when a specific key is used.

[Means for solving problems]

That is, according to the present invention, the latch bolts are provided so as to be retractable in the outer casing and are biased by the return spring, and are fixed to the rotatable handles attached to the outer casing, respectively, so that the latch bolts can be independently retracted and retracted. The inner hub and the outer hub provided, the cannuki provided in the outer housing so as to be able to move in and out by the rotation of the thumb turn, and the inner hub, which is interlocked with the appearance of the dog in the outer housing and is rotatable by contacting the outer hub. And a latch outer hub stopper pivotally attached to the outer housing so as to detachably lock the outer hub so as to prevent rotation of the outer hub in the latch bolt releasing direction. A latch stop cam is provided to lock the outer latch hub stopper in a disengageable manner, and the lock stop can be released by the operation of a solenoid, and the latch outer hub stopper is disengageably engaged in the outer hub stopper. And the display hub provided so that the engagement can be released by the operation of the solenoid and the engagement can be blocked by the cannula link, and the outer hub that can prevent the reverse rotation of the outer hub. The hub reversing stopper is provided so as to be engageably and disengageably locked and is capable of releasing the lock by the operation of a solenoid.

[Operation] Since the present invention is configured as described above, the outer hub 9 is locked by the hub reverse stopper 30, the latch outer hub stopper 29, and the latch stop cam 30 in a state where the door is automatically locked when the door is normally closed. Although the inner hub 8 is not rotated in either the left or right direction, it can be rotated in either the left or right direction because the inner hub 8 is not fixed.

When the solenoid S ₁ is actuated in this state, the latch stop cam 30 releases the latch of the outer hub stopper 29 so that the outer hub 9 can rotate only in the direction in which the latch bolt 3 is pulled in.

When the thumb turn 20 is rotated from the room in the auto-locked state, the canvas 19 projects and the canvas link 25
Rotates. As a result, the display link 27, which has been prevented from moving by the cannula link 25, moves and locks the outer latch hub stopper 29.

Even if the solenoid S ₁ is actuated in this state, the outer hub 9 cannot be rotated. However, when both the solenoids S ₁ and S ₂ are actuated, the latch stop cam 33 and the display link are connected.
Since both latches of the latch outer hub stopper 29 are released by 27, the outer hub 9 can be rotated only in the direction in which the latch bolt 3 is pulled in, and by rotating the outer hub 9 in that direction, the outer hub 9 is linked. Since the cannuki link 29 is rotated by abutting against the 29, the cannuki link 19 interlocked with the cannuki link 25 is drawn.

Further, when the solenoid S ₃ is operated in the auto-lock state, the engagement of the outer hub 9 by a hub reverse stopper 30 is released, the outer hub 9 rotates the rotatable and becomes outside the hub 9 to the direction in the opposite direction As a result, the outer hub 9 comes into contact with the cannulink 29 to rotate the cannulink 29,
Kannuki 19 which is linked with Kannuki Link 29 projects.

〔Example〕

An embodiment of the present invention will be described in detail below with reference to the drawings.
As shown in FIG. 2 and FIG. 2, the latch bolt 3 is provided in the outer casing 2 which is embedded in the open end side of the door 1 and fixed with screws or the like.
Is arranged so that it can be retracted and retracted from the window hole 4 and is biased by the return spring 5 in the protruding direction.

Further, handles 6 and 7 are rotatably supported on the outer casing 2 by protruding the door 1 indoors and outdoors, respectively.
The inner hub 8 and the outer hub 9 are independently rotatably fixed to each other, and the latch bolt 3 is retractable into the outer casing 2, that is, unlocked.

The inner hub 8 and the outer hub 9 are, as clearly shown in FIGS. 3 (a) and 3 (b), the latch bolt acting projections 8a and 9a and the outer casing 2.
Protrusions 8b and 9b, which are slidably biased by the hub return spring 10 to press the slider 11, are provided symmetrically, and a protrusion 8C for actuation of the cannula link, which will be described later, 9C is provided, and another cannula link actuating projection 9d is provided on the outer hub 9 so as to project from the projection 9c at an appropriate interval in the circumferential direction.

A latch stopper 12 is provided on the upper side of the latch bolt 3 so that the latch stopper 12 can be engaged with the step 3a of the latch bolt 3 and the step 3a.
When the latch bolt 3 is rotatably pivoted in the outer casing 2 and urged by an intervening spring 13 in a direction to lock the latch bolt 3 from the outside with a thin plate member in the unlocking direction. , The step portion 3a is formed so as to prevent unlocking by engaging with the latch stopper 12, and when unlocking as described later, the latch stopper provided integrally with the latch bolt 3 is released. The protrusion 14a of the piece 14 pushes up the convex portion 12a protruding inside the latch stopper 12 against the spring force, thereby rotating the latch stopper 12 from the state of FIG. 1 to the state of FIG. It is formed so that the locking with and can be released.

Further, the trigger 15 is arranged in the outer casing 2 so as to be retractable from the window hole 16 and urged by the return spring 17 so as to project outward from the window hole 16, and the door 1 is opened and the handle is opened. 6 is released, the inner hub 8 and the latch bolt 3 return to the state shown in FIG.
Since 15 is not pushed by the vertical frame 18, the return spring is
It is formed so as to project from the window hole 16 by means of 17, and its inclined surface 15a presses the rear portion of the latch stopper 12 as shown in FIG.

Further, the hood 19 is arranged in the outer casing 2 so as to be retractable and retractable, and is retracted from the window hole 22 by the hood hub 21 which is rotated by the rotation operation of the thumb turn 20 rotatably supported by the outer casing 2.

The base of the Kannuki hub 21 is formed on a pinion 23, and the pinion 23 is meshed with a rack 24 arranged in the outer casing 2 so as to be reciprocally movable in the front-rear direction. The rack 24 is moved in the opposite direction, and a rear end of the rack 24 is pivotally connected with an upper end of a cannulink 25 which will be described later.

Further, the hook hub 21 is biased by a spring 26 so as to be held in a state in which the hook 19 is projected and in a retracted state as shown in FIG.

The vicinity of the lower end of the cannuki link 25 is rotatably pivoted in the outer casing 2 by a support shaft 36 together with the display link 27, and the display link 27 is biased clockwise by a spring 28 in FIG. And is locked to the protrusion 25a of the cannulink 25.

Further, a protrusion 25b is provided so as to project from the vicinity of the lower end of the cannu link 25 to the inner and outer hubs 8 and 9 side.

Further, in the outer casing 2, a latch outer hub stopper 29 and a hub reverse rotation stopper 30 are rotatable by a support shaft 31, and the latch outer hub stopper 29 is attached by a spring 32 in a counterclockwise direction in FIG. The lower end of the outer hub 9 is disengageably engaged with one end of the outer hub 9 so as to prevent rotation of the outer hub 9 in the pulling direction of the latch bolt 3. , One end of the display link 27 is detachably engaged to prevent rotation in the counterclockwise direction, and the hub reverse stopper 30
One end of the outer hub 9 is detachably engaged with the lower end of the outer hub 9 so as to prevent the outer hub 9 from rotating counterclockwise in FIG. 1. each other end are ligated with the solenoid S _3, S ₂ so as to be actuated by respective solenoid S _3, S _2.

In addition, a latch stop cam 33 is rotatably supported by a support shaft 34 in the outer casing 2, and the latch outer hub stopper is provided at one end thereof.
One end of 29 is pivotally attached so that it can be engaged and disengageably locked, and the intervening spring 35 causes a hub stopper 29 for the outside of the latch.
Yes thereby urged in the direction for engaging with, are linked to the solenoid S ₁ so as to be actuated by a solenoid S _1.

Here, the solenoid S ₁ is provided to be operated by an electric signal from the guest key and the master key, and the solenoids S ₁ and S ₂ are provided to be operated by an electric signal from the emergency key or the display key. On the other hand, the solenoid S ₃ is provided so as to be operated by an electric signal from the display key.

Thus, in the above structure, FIG. 1 shows a state in which the door is automatically locked when the door is normally closed.

That is, in this state, the outer hub 9 is the hub reverse stopper 3
0, hub stopper 29 outside latch, latch stop cam 33
Since it is locked by and is not rotated in either the left or right direction, it cannot be unlocked even if the handle 7 is rotated from outside the room.

On the other hand, since the inner hub 8 is not fixed, it can be unlocked from the room in any case.

In this state, if the latch bolt 3 is pressed from the outside by a thin plate member, for example, the movement cannot be unlocked because the latch stopper 12 prevents the lock bolt 3 from being unlocked. When the handle 6 is released after opening, the latch stopper 12 is pivotally held by the inclined surface 15a of the trigger 15 protruding from the window hole 16 so that the latch bolt 3 cannot be locked with the latch bolt 3. It is held movable.

Next, by sending an electric signal from the guest key and the master key to the solenoid S ₁ , the solenoid S ₁ is actuated, and the latch stop cam 33 is rotated counterclockwise in FIG. Since the hub stopper 29 is unlocked, the latch outer hub stopper 29 is rotated counterclockwise in FIG. 1 by the spring force, and the outer hub 9 is unlocked. In the above, it becomes possible to rotate only in the clockwise direction, that is, in the direction in which the latch bolt 3 is pulled into the outer casing 2, and the automatic lock is released.

Therefore, it is possible to unlock the door by rotating the handle 7 outside the room by sending a signal from the outside by a key that operates the solenoid S ₁ .

Next, when the cannuki 19 is projected from the room, the thumb turn 20 is turned from the room and the cannula hub 21 is rotated counterclockwise in FIG. 1, so that the cannook 19 is pushed out from the window hole 22 and projects. Rack 24 by pinion 23 at this time
Moves in the direction opposite to Kannuki 19 in conjunction with each other and rotates Kannuki Link 25 in the clockwise direction in FIG. 1 about spindle 36, so that display link 27 is also rotated in the clockwise direction by the spring force. The other end of the outer hub stopper 29 for latching is locked and fixed, and the state shown in FIG. 6 is obtained.

At this time, even if a signal is sent to the solenoid S ₁ by the guest key, the hub stopper 29 outside the latch will be displayed on the display link.
Since it is locked by 27, the outer hub 9 cannot be rotated. That is, in the state shown in FIG. 6, the guest key cannot be used for unlocking.

Next, in this state, when the handle 6 is rotated from the room and the inner hub 8 is rotated, the inner hub 8 is not fixed,
It becomes rotatable, and when the inner hub 8 is rotated clockwise in FIG. 6, the protrusion 8c of the inner hub 8 is rotated.
Since the protruding portion 25b of is pushed down, the cannula link 25 is rotated counterclockwise in FIG. 6 around the support shaft 36, so that the rack 24 is moved leftward and the cannula hub 21 is clocked via the pinion 23. It rotates in the direction of rotation, so that the cannuki 19 is drawn into the outer casing 2.

In other words, it can be unlocked from the room with one action by simply rotating the handle 6.

Next, when unlocking from the outside, if an emergency key or a display key is used, electric signals from these keys are sent to the solenoids S ₁ S ₂ at the same time.
Operation of solenoid S ₁ causes latch stop cam 33 to rotate counterclockwise in FIG. 6, while operation of solenoid S ₂ causes display link 27 to rotate counterclockwise in FIG. Both ends of 29 are unlocked and rotated in the counterclockwise direction by the spring 32, and the outer hub 9 can rotate only in the clockwise direction in FIG.

Therefore, when the outer hub 9 is rotated in the above-mentioned direction by rotating the handle 7 outside the room, the protrusion 9c pushes down the protrusion 25b of the cannulink 25, and the cannulink 25 is counterclockwise in the figure with the support shaft 36 as the center. It is rotated in the direction of rotation. Therefore, Kannuki 19 is pulled into the outer casing 2 in the same manner as described above,
Unlock.

In other words, by using the emergency key and the display key, the lock can be released by simply rotating the handle 7 from the outside even when the lock 19 is double locked.

Next, I will explain how to use Kannuki 19 from outside using the display key.

In the state shown in FIG. 1, when an electric signal from the display key is sent to the solenoid S ₃ and the solenoid S ₃ operates, the hub reverse rotation stopper 30 rotates counterclockwise in the figure and the outer hub 9 is unlocked. Therefore, the outer hub 9
Can rotate only in the counterclockwise direction in the figure.

Therefore, when the outer hub 9 is rotated in the above-mentioned direction by turning the handle 7, the other protrusion 9d pushes up the protrusion 25b of the sewage link 25 and rotates the sewage link 25 in the clockwise direction in the drawing. As a result, as opposed to the above-described release of the blank, the blank 19 can be projected from the window hole 22 by operating each member.

When using the display key, a lead SW (not shown) is provided in the hook 19 and a magnet (not shown) is installed on the vertical frame 18 side to detect whether the hook 19 is worn or not, and the hook 19 is projected. The solenoids S ₁ and S ₂ may be operated when it is present, and the solenoid S ₃ may be operated when it is not protruding.

[Effect of device]

Since the electric lock according to the present invention is constructed as described above, the key level can be created by the combination of the signals sent to the _three solenoids S ₁ , S ₂ and S ₃ .
It is suitable for use as a lock by electric means such as a card or a key on the door of each guest room of a hotel or the like, and since the cannuki 19 can be put in and taken out from the outside, there is an effect that a sense of security can be given when going out.

[Brief description of drawings]

FIG. 1 is a side view of a normal state showing an embodiment of an electric lock according to the present invention in a partial cross-section, FIG. 2 is a vertical cross-sectional view of a part of the electric lock, and FIGS. ) Is a front view of each of the inner hub and the outer hub of the electric lock, FIG. 4 is a side view of the electric lock when the latch stopper is released when the hub is rotated, and FIG. Fig. 6 is a side view showing a state where the latch stopper is released when the electric lock is projected, Fig. 6 is a side view showing a partial cross-section of the electric lock when the lock is projected, and Fig. 7 is a block diagram of the entire structure of the electric lock. It is a figure. 2 …… Outer housing, 3 …… Latch bolt 5 …… Return spring, 6,7 …… Grip 8 …… Inner hub, 9 …… Outer hub 19 …… Cannuki, 20 …… Samturn 25 …… Cannuki link, 27 …… Display link 29 …… Outside latch Hub stopper 30 …… Hub reverse stopper 33 …… Latch stop cam S ₁ , S ₂ , S ₃ …… Solenoid

Claims (1)

[Scope of utility model registration request] 1. A latch bolt (3) provided in a housing (2) so as to be retractable and retractable and urged by a return spring (5).
It is fixed to the handles 6 and 7, which are attached to the outer casing and are rotatable,
The inner hub 8 and the outer hub 9 each independently provided with a latch bolt that can be retracted and retracted, the cannuki 19 that can be interlocked with the thumb turn 20 by the rotation of the thumb turn 20, and the cane that can be retracted and retracted in the outer casing. The cannula link 25 that is rotatably mounted in contact with the outer hub and is rotatably attached to the outer hub, and the outer hub is detachably engaged with the outer housing so as to prevent rotation of the outer hub in the latch bolt releasing direction. A latch outer hub stopper 29 pivotally attached so as to be stopped, and a latch stop cam provided so as to releasably engage the latch outer hub stopper and capable of releasing the engagement by the operation of the solenoid S _1. 33
And the latch outer hub stopper so as to be engageably and disengageably engaged with the latch outer hub stopper. The solenoid S ₂ is actuated to release the engagement, and the cannulink is capable of preventing the engagement. A hub reversing stopper provided to lock the display hub 27 and the outer hub so as to prevent the reverse rotation of the outer hub so that the outer hub can be engaged and disengaged, and to release the lock by the operation of the solenoid S _3.
An electric lock comprising 30 and 30.