JP2003129716A - Locking device having no key hole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a locking device, by which not only a locking and the unlocking of the locking can be operated without a key hole but also a sure locked state in which a lock is not opened unjustly is obtained because a rod can be projected or retracted electrically to or from a rod receiver by a remote control operation. SOLUTION: The locking device is composed of a locking device body with the upper and lower rods installed to either one of a door or the wall of an entrance, the rod receiver mounted on the other, a controller conducting electricity through the locking device body and a portable remote control console panel transmitting a signal to the controller. In the locking device body, upper and lower cylinders having the rods housed therein in a retractable manner from a surface substrate are fixed onto the surface substrate faced to the rod receiver, both rods are connected integrally by a driving pin, a driving device electrically moving a movable shaft before and behind is secured between both cylinders, the driving pin is connected to the movable shaft and the rods can be projected or retracted by the remote control operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door or a locking device without a key hole for locking a door or the like from being opened illegally.

[0002]

2. Description of the Related Art Doors for opening and closing entrances and exits of homes and offices are generally provided with a locking device in addition to a closing device with a handle. The closing device has a ratchet on the end face of the door so that it can move in and out by a spring and a ratchet receiver is provided on the wall side so that it does not hinder the closing. By retracting from the receiver, the door can be opened to eliminate the ratchet catch, whereas the locking device projects a rod near the ratchet,
A rod receiver is provided on the wall side, and when the key is inserted through the key hole and rotated, the rod comes in and out depending on the rotation direction.

Regarding the relationship between the keyhole, the key and the rod, a large number of claws matching the key shape are arranged in the keyhole, and when the key inserted in the keyhole is rotated, the claw array rotates and the rod When the key is rotated to one side, the rod rushes into the rod receiver and is locked, and when the key is rotated to the other, the rod is retracted from the rod receiver and the locked state is released.

[0004]

The number of combinations of the arrangement forms of the claws in the keyhole can be said to be innumerable, and therefore the key cannot be unlocked unless it has the key shape unique to the locking device. Then, there is a case where a person who is familiar with the mechanism works to remove the key by performing an illegal operation from the keyhole. For example, a pin is inserted to skillfully rotate the nail array body, or a molding agent is injected from a key hole to take a mold of the nail array to copy the key shape. Therefore, the conventional locking device having a keyhole cannot be used for crime prevention.

The present invention has been made in view of the above circumstances.
(EN) A locking device that can perform locking and unlocking operations without a keyhole as well as a locking state that prevents unauthorized opening because a rod can be electrically moved in and out of a rod receiver by remote control operation. It was intended.

[0006]

In order to achieve the above-mentioned object, the present invention is provided with a locking device main body having upper and lower rods, which is attached to either the door or the door and the wall of the doorway, and the other. It consists of a rod receiver, a control device that energizes the locking device main body, and a portable remote control operation panel that transmits to the control device.The locking device main body is a rod substrate that faces the rod receiver and can move in and out from the surface substrate. The upper and lower cylinders in which the is housed are fixed, both rods are integrally connected by a drive pin, a drive device for electrically moving the movable shaft back and forth is provided between the cylinders, and the drive pin is connected to the movable shaft. A lock device without a key hole is configured, which allows the rod to be moved in and out by an operation.

[0007]

[Operation] According to the above configuration, it is possible to obtain the locked state and the unlocked state by moving the drive device to move the rod in and out by operating the remote controller.
Although the keyhole is no longer needed, in the locked state, even if it is illegal to insert some device between the door and the wall of the entrance and exit to retract the rod from the rod receiver and remove it, Due to the fact that the rods are connected together by a drive pin, it is difficult and difficult to operate both rods at the same time. Since it is impossible to remove them together, they can never be tampered with.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a movable shaft 31 is provided.
Various actuators, for example, a hydraulic cylinder powered by a motor can be used as the drive device 15 for moving back and forth. However, when using the screw feeding mechanism (Claim 3) by the solenoid 29 (Claim 2) or the motor, a reliable operation is easily obtained. Further, even in the state in which the power supply is cut off, in the case of claim 2, the locked state is held by the coil springs 19, 19.
In this case, the magnets 45 and 46 hold the locked state and the unlocked state, which not only saves power, but also ensures safety even if there is an electrical trouble such as a power failure.

Examples of objects to be implemented include doors D for doorways of homes and offices, doors for warehouses, doors for safes, and the like. In the case of the door D, in addition to the lock device without a keyhole according to the present invention, generally, the above-described ratchet closing device is necessary. Further, if a conventional locking device with a keyhole is also provided, it is possible to further ensure the crime prevention by using it together. If the remote control operation panel 7 is operated by a personal identification number, further safety can be secured.

[0010]

As described above, according to the lock device without a keyhole of the present invention, since the rod can be electrically moved in and out of the rod receiver by the remote control operation,
Not only can lock and unlock operations be performed without a keyhole, but not only the pair of upper and lower rods can be locked, but since both rods are integrally connected by the drive pin, it cannot be opened illegally. There is an excellent effect that a locked state is obtained.

[0011]

Embodiments of the present invention will now be described with reference to the drawings.

FIGS. 1 to 4 show an example in which the door D is installed at a doorway of a home, an office or the like. The locking device has a locking device body 1 and upper and lower rods 3 and 3 which come and go. It is composed of a rod receiver 2, a control device 5 for energizing the locking device main body 1, and a remote control operation panel 7 for transmitting it (FIG. 1), and the locking device main body 1 and the control device 5 are provided on the wall W of the doorway 9. Then, the rod receiver 2 is mounted on the door D (FIG. 2).

The locking device body 1 has a base plate 11 as a mounting base which is screwed to the frame 10 of the entrance / exit 9.
A pair of upper and lower cylinders 13, in which the rods 3, 3 are installed,
A drive device 15 for the rods 3, 3 is provided between the two cylinders 13, 13 fixed to it. Further, side plates 17, 17 are fixed to both sides of the face substrate 11, and the driving device 15 is attached to one of the side plates 17 with a screw 18.

The cylinders 13 and 13 include rods 3 and 3, respectively.
Besides, coil springs 19 and 19 for urging it in the protruding direction
Is internally mounted and is connected by a drive pin 21 so that both rods 3 and 3 move back and forth simultaneously. Therefore, slits 23, 23 are formed in the cylinders 13, 13 in the range in which the drive pin 21 moves. The plane substrate 11
Are provided with openings 25, 25 through which the rods 3, 3 come in and out.

The drive unit 15 is a device in which a coil is wound around a rectangular cylindrical body 27 to form a solenoid 29, and a movable shaft 31 made of a permanent magnet is housed in the cylindrical body 27. It is connected to the pin 21 via connecting fittings 33, 33. Since the movable shaft 31 has an S pole at one end and an N pole at the other end, when a direct current is applied from the control device 5 to the solenoid 29, the movable shaft 31 of the magnet retracts due to the opposite polarities of the solenoid 29 (see FIG. 3). ), Both rods 3 and 3 retreat at the same time via the drive pin 21 against the resilience of the coil springs 19 and 19, whereby the lock is released. When the electric current is cut off, the elastic force of the coil springs 19 and 19 causes the rods 3 and 3 to project and become locked (FIG. 4).
It should be noted that the protrusion may be made by switching the reverse current.

The rod receiver 2 has cylindrical receiving portions 34, 34 fixed to a face substrate 32 thereof, and the face substrate 31 is screwed to an edge plate 35 on the end face of the door D (FIG. 2).

The control device 5 introduces a current of 100 V by the code 37, converts it into a direct current and converts it into a code 39.
A converter for sending to the solenoid 29, a switch for turning off the power supply, a receiving device by the antenna 41, a device for switching the switch based on the reception, and the like are incorporated. Further, the remote control operation panel 7 is provided with switches 43, 43 for radio signals.

FIG. 5 shows another embodiment, in which a DC motor is used as the drive unit 15 and the movable shaft 31 is moved back and forth by the rotation of the motor, and a screw feed mechanism is used for it. Therefore, in this case, if the direct current sent to the motor is converted into the forward and reverse directions by the remote control operation panel 7,
The rods 3, 3 can be moved in and out, so that the locked state and the unlocked state are alternately obtained. Also, in order to be retained in any of them when the power is off,
Magnets 45 and 46 for attracting the rods 3 are attached and fixed to the cylinders 13 and 13 and the receiving portions 34 and 34, respectively. Further, in this case, since the drive pin 21 is projected to the outside of the rods 3 and 3, the cylinders 13 and 13 are
Slits 23, 23 are provided on both sides of.

[Brief description of drawings]

FIG. 1 is a side view showing a locking device without a keyhole according to the present invention.

FIG. 2 is a perspective view showing a usage state of the locking device without a keyhole according to the embodiment.

FIG. 3 is a cross-sectional view showing the locking device without a keyhole of the embodiment in an unlocked state.

FIG. 4 is a sectional view showing the locking device without a keyhole of the embodiment in a locked state.

FIG. 5 is a cross-sectional explanatory view showing a locking device without a keyhole according to another embodiment.

[Explanation of symbols]

D door W wall 1 Locking device body 2 Rod holder 3 rod 5 control device 7 Remote control panel 11 Face board of the locking device body 13 cylinders 15 Drive 19 coil spring 21 drive pin 29 Solenoid 31 Movable axis 32 Rod receiving surface substrate 45,46 magnets

Claims (3)

[Claims] 1. A lock device main body with upper and lower rods attached to one of a door or a door and a wall of a doorway, a rod receiver attached to the other, a control device for energizing the lock device main body, and a control device. It consists of a portable remote control operation panel for transmitting, and the locking device body has a rod receiver and a face substrate facing the body, and an upper and lower cylinder in which the rod is housed so that it can be inserted and removed from the face substrate is fixed, and both rods are integrated by a drive pin. A locking device without a keyhole, characterized in that a drive device for electrically moving the movable shaft forward and backward is provided between both cylinders, and a drive pin is connected to the movable shaft, and the rod can be moved in and out by remote control operation. apparatus. 2. The locking device main body, wherein the drive device is provided with a movable shaft of a magnet at the center of the solenoid, and both cylinders are internally equipped with coil springs for urging the rod in the projecting direction. 2. The lock device without a keyhole according to claim 1, wherein the movable shaft is configured to be retracted against the elastic force of the coil spring by energizing the solenoid. 3. The locking device main body is provided with a motor for the drive device to rotate forward / reverse by a remote control operation, and a screw feeding mechanism for converting the forward / reverse rotation into forward / backward movement of a movable shaft. 2. The locking device without a keyhole according to claim 1, wherein the magnet for attracting the rod at the retracted position is fixed to the receiving portion of the rod receiver by incorporating the magnet for attracting the rod at the protruding position.