JPH04302678A - Automatic lock device - Google Patents

Abstract

PURPOSE:To enable an a automatic lock device to be subsequently mounted to an existing door without damaging the appearance of the door by forming an engaging hole in an engaging section of an existing lock for a door and providing an electromagnetic actuator provided with a new engaging section in an existing lock hole. CONSTITUTION:A new engaging hole 7 is formed in a section where an engaging section 6 of an existing lock for a door 1 was present by a method of shortening the engaging section 6 or exchanging the existing lock, etc. Then, an electromagnetic actuator 9 provided with a new engaging section 8 capable of being inserted in the engaging hole 7 is an existing lock hole 5 of a frame post 4 in a position opposed to a pivotal end of the door 1. The electromagnetic actuator 9 is operated by controlling the current supply to an electric circuit 10 to lock and unlock the door 1. Thus, the existing lock can be changed to an lock without exposing a subsequently mounting member on the surface.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic locking device for electrically locking a door.

0002

[Prior Art] Conventionally, when attaching an automatic locking device that electrically locks the door to an existing door, an electromagnetic solenoid with a movable iron core is attached to the surface of the rotating end of the door.
A member with a hole into which the movable core was inserted was attached to the frame column side.

0003

[Problems to be Solved by the Invention] Conventionally, when an automatic locking device is retrofitted to an existing door, the electromagnetic solenoid and the member with the hole are visible from the outside, resulting in the problem of detracting from the aesthetics.

0004

[Object of the Invention] The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide an automatic locking device that does not impair the aesthetic appearance even if the automatic locking device is retrofitted to an existing door. .

[0005]

[Means for Solving the Problems] The automatic locking device of the present invention employs the following technical means.

[0006] A door that opens and closes an entrance/exit by rotation, a frame pillar located at a position opposite to a rotating end of the door when the door is in a position to close the entrance, and a rotating end of the door. An existing lock is provided with an engaging portion built into the side, protruding toward the existing lock hole provided in the frame pillar, and preventing rotation of the door. Then, by shortening the engaging part or replacing the existing lock, an engaging hole is provided in the part where the engaging part used to slide, and the lock is inserted into the existing lock hole. An electromagnetic actuator with a possible new engagement part will be installed. Then, the electromagnetic actuator is energized and controlled by an electric circuit.

The present invention may adopt the following embodiments. The electric circuit controls the energization of the electromagnetic actuator so that the lock remains unlocked for a predetermined period of time. The engaging part of the existing lock is processed to be shorter or replaced with a shorter engaging part, and the new engaging part is pushed back by this engaging part to perform the unlocking operation. The door is
A return means is provided for returning the device to the closed state when the device is in the open state. Further, a door opening holding means is provided in a range where the door can return to its natural state by locking with the door or a member provided on the door to maintain the open state of the door. The door open holding means includes a release means for electrically releasing the engagement state with the door or a member provided on the door, and the release means controls energization by an electric circuit.

[0008]

By energizing the electric circuit, the new engaging portion of the electromagnetic actuator enters or exits the engaging hole. When the new engagement part enters the engagement hole, the lock is performed, and when the new engagement part comes out, the lock becomes unlocked.

[0009]

[Effects of the Invention] In the automatic locking device of the present invention, an electromagnetic actuator to be installed later is arranged in an existing lock hole, and an engagement hole into which a new engagement part is inserted also has an engagement part arranged therein. Compared to conventional technology in which electromagnetic actuators were retrofitted to the surface of the door,
Excellent aesthetics.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an automatic locking device of the present invention will be explained based on an embodiment shown in the drawings.

[Configuration of Embodiment] FIGS. 1 to 6 show an embodiment of the present invention, in which FIGS. 1 to 3 are explanatory diagrams of the operation of an automatic locking device, FIG. 4 is a perspective view of an electromagnetic actuator,
FIG. 5 is a schematic configuration diagram of the automatic locking device, and FIG. 6 is a side view of the door open holding means.

[0012] The automatic locking device of this embodiment has a first time (
For example, the lock is automatically unlocked at 9 o'clock in the morning), and the door is automatically locked at a second time (for example, 9 o'clock at night). Further, the door 1 used in this embodiment is equipped with a return means 2 that automatically closes in the open state within a predetermined rotation range. The automatic locking device of this embodiment holds the door 1 in an open state within a range where the door 1 can return naturally by the return means 2, and locks the door 1 at a third time earlier than the second time (for example, at night). A door opening holding means 3 is provided to release the holding state of the door 1 at 8:55 am.

The door 1 to which the automatic locking device of this embodiment is attached is an existing door that opens and closes the entrance and exit by rotating. There is an existing frame post 4 around the door 1 when the door 1 is in the position where the doorway is closed. The existing door 1 has an existing lock (with an engaging part 6 on the rotating end side that protrudes toward the existing lock hole 5 provided in the frame column 4 and prevents the door 1 from rotating). (not shown) is built-in.

[0014] For the automatic locking device to be retrofitted, first, the engaging portion 6 of the existing lock is processed to be shorter, and an engaging hole 7 is formed in the portion where the engaging portion 6 used to slide. The processed engaging portion 6 is processed so that it is flush with the edge of the door 1 or slightly protrudes from the edge of the door 1 when it slides in the direction of protruding from the engagement hole 7. Then, a new engaging part 8 that can be inserted into the engaging hole 7 formed on the door 1 side is provided in the existing lock hole 5 into which the engaging part 6 of the existing lock was inserted when locking. A first electromagnetic solenoid (electromagnetic actuator of the present invention) 9 is provided. The first electromagnetic solenoid 9 is
Power supply is controlled by an electric circuit 10. Note that the new engaging portion 8 protrudes toward the door 1 side when the first electromagnetic solenoid 9 is de-energized by the action of a spring (not shown) in the first electromagnetic solenoid 9, and the first electromagnetic solenoid 9 When energized, it returns to the existing lock hole 5.

The door opening holding means 3 is provided on the floor within a range where the door 1 can be returned naturally by the return means 2, and engages with the claw portion 12 of the locking member 11 attached to the lower end of the door 1. A matching locking culm 13 is provided. This locking culm 13 maintains the engaged state with the locking member 11 by its own weight or the return force of a spring. The door open holding means 3 is provided with a release means for releasing the engagement state with the locking member 11. This release means is a second electromagnetic solenoid 14 that rotates the locking culm 13, and is energized and controlled by the electric circuit 10.

The electric circuit 10 controls the energization of the first electromagnetic solenoid 9 and the second electromagnetic solenoid 14. Electric circuit 10 includes a 24-hour timer. Then, from the first time (e.g. 9 a.m.) to the second time (e.g. 9 p.m.)
), the first electromagnetic solenoid 9 is energized until the door 1 is closed for a predetermined period of time.
In addition to unlocking the lock at other times (from the second time to the first time)
), the door 1 is locked by an electromagnetic locking device. Further, the electric circuit 10 energizes the second electromagnetic solenoid 14 for a short time (for example, 1 second) at a third time (for example, 8:55 p.m.), which is a little earlier than the second time, so that the door opening holding means 3 Release the holding state of door 1 by.

[Operation of the Embodiment] Next, the operation of the above embodiment will be briefly explained. At the first time (for example, 9 o'clock in the morning), the first electromagnetic solenoid 9 is energized by the electric circuit 10, the new engagement part 8 comes out of the engagement hole 7, and the lock by the electromagnetic locking device is released (Fig. (see 2). The first electromagnetic solenoid 9 is energized by the electric circuit 10 at a second time (
(for example, until 9 p.m.), and as a result, the lock is released until the second time.

When the door 1 is opened and the door 1 is rotated to the door opening holding means 3, the locking member 11 of the door 1 and the locking culm 13 of the door opening holding means 3 are engaged, and the door 1 is held open. Then, at a third time (eg, 8:55 p.m.), the second electromagnetic solenoid 14 is energized for a short time by the electric circuit 10, and the engagement with the locking member 11 is released. Then, the door 1 is closed by the return means 2. and,
At the second time, the first electromagnetic solenoid 9 is de-energized, the new engagement part 8 is inserted into the engagement hole 7, and the lock state is established (see FIG. 1).

Next, manual unlocking of the automatic locking device will be explained. When the new engagement part 8 of the automatic locking device is inserted into the engagement hole 7 and in the locked state, operate the existing lock to slide the engagement part 6 toward the frame column 4 side (the original The lock operation is a lock operation). Then, the new engaging part 8 is pushed by the engaging part 6 and comes out of the engaging hole 7, and as a result, the lock by the electromagnetic locking device is released (see FIG. 3).

[Effects of the Embodiment] In the automatic locking device of the present embodiment, the first electromagnetic solenoid 9 to be installed afterwards is arranged in the existing lock hole, and the engagement hole into which the new engagement part 8 is inserted is provided. 7 also uses an existing one in which the engaging part 6 was arranged, so it is not visible from the outside, and the first electromagnetic solenoid 9 is connected to the door 1.
The aesthetic appearance is superior to that of conventional technology, which was retrofitted onto the surface of the surface.

[0021] Furthermore, once the door 1 is opened, it remains open for a predetermined period of time and is automatically closed when necessary, making it extremely convenient for the user of the door 1.

[0022]

[Modification] In the above embodiment, an example is shown in which an electromagnetic solenoid is used as an example of an electromagnetic actuator, but other electromagnetic actuators such as an electric motor or a fluid pressure actuator of oil or air may be used.

[0023] A sensor is installed to detect the open/closed state of the door 1, and the electromagnetic solenoid is energized depending on the sensor.
It may also be provided so that the open state of the device can be determined from a remote location.

Although an example has been shown in which the electric circuit 10 is installed near the door 1, it may be installed at a remote location.

[0025] The first, second, third time, etc. may be provided so as to be changeable.

In this embodiment, an example is shown in which the electromagnetic solenoid 9 is energized from a first time (for example, 9 a.m.) to a second time (for example, 9 p.m.). It may be arranged to turn on electricity for a short time (for example, 5 minutes) when the time comes. Also, the electromagnetic solenoid 9 at the second time
The energization control may be provided such that when the second electromagnetic solenoid 14 is energized, it is energized for a predetermined time (for example, 5 minutes). Note that by shortening the energization time of the electromagnetic solenoid 9 in this way, the life of the electromagnetic solenoid 9 can be extended.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of an automatic locking device in a locked state.

FIG. 2 is a schematic diagram of the automatic locking device in an unlocked state.

FIG. 3 is a schematic diagram illustrating a manual unlocking operation of the automatic locking device.

FIG. 4 is a perspective view of an electromagnetic actuator.

FIG. 5 is a schematic configuration diagram of an automatic locking device.

FIG. 6 is a side view of the door opening holding means.

[Explanation of symbols]

1 Door 2 Return means 3 Door open holding means 4 Frame column 5 Existing lock hole 6 Engagement part 7 Engagement hole 8 New engagement part 9 First electromagnetic solenoid (electromagnetic actuator) 10
electric circuit

Claims (4)

[Claims] Claim 1: A door that opens and closes an entrance/exit by rotation; a frame post located at a position opposite to a rotating end of the door when the door is in a position to close the entrance; and a frame post that rotates the door. In the locking device, the locking device includes an existing lock that is built into the end side and has an engaging portion that protrudes toward the existing lock hole provided in the frame pillar and prevents rotation of the door, wherein the engaging portion is shortened. An engaging hole is provided in the part where the engaging part used to slide by processing or replacing the existing lock, and a new engaging part that can be inserted into the existing lock hole is provided. An automatic locking device characterized in that an electromagnetic actuator is provided, and the electromagnetic actuator is energized and controlled by an electric circuit. 2. The automatic locking device according to claim 1, wherein the electric circuit controls energization of the electromagnetic actuator so that the lock is in an unlocked state for a predetermined period of time. [Claim 3] Processing the engaging portion of the existing lock to be shorter;
Alternatively, the automatic locking device according to claim 1 or 2, wherein the locking operation is performed by replacing the locking portion with a shorter locking portion and pushing back the new locking portion with the locking portion. 4. When the door is in an open state,
In addition to having a return means for returning the door to the closed state, it also includes a door opening holding means that locks with the door or a member provided on the door to maintain the open state of the door within a range where the door can return naturally. . . . , the door open holding means includes a release means for electrically releasing the engagement state with the door or a member provided on the door, and the release means is energized and controlled by an electric circuit. The automatic locking device according to any one of Item 3.