WO2021049017A1

WO2021049017A1 - Sliding door locking device

Info

Publication number: WO2021049017A1
Application number: PCT/JP2019/036166
Authority: WO
Inventors: 東　重企
Original assignee: 株式会社アッサアブロイジャパン
Priority date: 2019-09-13
Filing date: 2019-09-13
Publication date: 2021-03-18
Also published as: JPWO2021049017A1

Abstract

In the present invention, detection regions in a magnet sensor (3) for detecting an open state and a closed state of a sliding door can be easily adjusted by way of a structure in which: an electric lock (1) is mounted to the front end of the door body (D) of a sliding door; a lock receiver (2) that has a locking member (21) for locking a hook plate (locking piece) (17) of the electric lock (1), a sensor mounting member (32) into which a cap (31) press fitted with the integrated magnet sensor (3) is fitted, and a strike plate (4) that covers the lock receiver (2) and the sensor mounting member (32) are mounted to a door stop of a door jamb (F) facing the front end of the door body (D); and the magnetic force of the magnet portion of the magnet sensor (3) can be adjusted by changing the dimensions or the material of the cap (31) serving as the cover for the magnet sensor (3), the sensor mounting member (32), and the strike plate (4).

Description

Sliding door locking device

The present invention relates to a locking device including an electric lock for a sliding door and a magnet sensor for detecting the open / closed state of the sliding door.

In recent years, there has been a growing demand for sliding doors such as private rooms in hospitals that can be locked and unlocked by remote control. Such a sliding door locking device includes an electric lock, a lock receiver, and a sensor for detecting the open / closed state of the sliding door, and the electric lock is locked / unlocked when the sensor detects the closed state of the sliding door. Is common.

On the other hand, the security system for sliding doors has been known to use a magnet sensor. For example, in the security system proposed in Patent Document 1, a magnet sensor is configured by a magnet provided on the upper part of the door body of the sliding door and a reed switch provided at a position facing the magnet when the sliding door is in the closed state. However, when the sliding door is locked, if the door body is opened and the magnet no longer faces the reed switch, the reed switch detects this and sends the signal to the security device.

Therefore, even in the above-mentioned sliding door locking device, a magnet sensor similar to the above-mentioned security system is often used as the sensor.

JP-A-2007-262742

However, the sliding door locking device using the conventional magnet sensor as described above has a drawback that it takes time and effort to appropriately set the detection area of the sliding door open state and closed state in the magnet sensor.

That is, if the detection area of the sliding door in the closed state of the magnet sensor is set wide, when the sliding door is to be locked, the door tip of the door body and the door stop of the vertical frame can actually be locked by the electric lock. Even if the distance is more than a certain distance, the magnet sensor may detect the closed state, and the electric lock may not be locked even if the electric lock is locked. Therefore, the magnet sensor needs to be set to detect the closed state when the door end portion of the door body and the door stop portion of the vertical frame approach each other to a position where they can be securely locked.

On the other hand, if the closed state detection area of the sliding door is set narrow, when a visitor or the like tries to open the locked sliding door when a monitoring system for preventing prying is installed in the sliding door, the sliding door is opened. The magnet sensor may detect the open state and the monitoring system that receives the signal may issue a prying open alarm even though the is still locked. Therefore, the magnet sensor needs to be set so as to detect the open state when the door end portion of the door body and the door stop portion of the vertical frame are reliably separated from each other to an unlockable position.

And, in order to satisfy the above two conditions at the same time, it is necessary to make fine adjustments such as the mounting position of the magnet sensor at the time of assembling to the sliding door and maintenance, which may greatly reduce the work efficiency.

Therefore, an object of the present invention is to make it possible to easily adjust the detection area of the magnet sensor in the locking device that operates the electric lock by detecting the open / closed state of the sliding door with the magnet sensor.

In order to solve the above problems, the present invention includes an electric lock that is attached to the door end portion of the door body of the sliding door and that advances and retreats the locking piece toward the door stop portion of the vertical frame facing the door end portion. The distance between the lock receiver provided at the door stop portion of the vertical frame and having a locking member for locking the locking piece of the electric lock, and the door stop portion of the door body and the door stop portion of the vertical frame. In a sliding door locking device, which is provided with a magnet sensor that detects the open / closed state of the sliding door in response to the above, and the electric lock is operated to lock / unlock when the magnet sensor detects the closed state of the sliding door. The magnet portion of the magnet sensor is covered with a cover for adjusting the magnetic force of the magnet portion.

That is, by covering the magnet part of the magnet sensor with a cover and adjusting the magnetic force of the magnet part by changing the size and material of the cover, the detection area of the sliding door in the open state and the closed state of the magnet sensor can be adjusted. I made it easy.

Here, as a specific configuration for locking the sliding door, the locking piece of the electric lock is rotatably arranged in a plane parallel to the door body, and the magnet sensor closes the sliding door. When the electric lock is locked while the state is detected, the locking piece rotates while entering the lock receiver and is locked to the locking member of the lock receiver. can do.

Then, when the above configuration is adopted, when the locking member of the lock receiver collides with the locking member of the electric lock near the opening of the lock receiver during rotation, the locking piece is pressed. It is preferable that a slope is formed to guide the lock holder to the back side. In this way, when the closed state of the sliding door is detected, even if the door tip of the door body is separated from the door stop of the vertical frame to some extent, the door body can be opened by locking the electric lock. The sliding door can be securely locked by being pulled toward the vertical frame side.

In the sliding door locking device of the present invention, as described above, the magnet portion of the magnet sensor that detects the open / closed state of the sliding door is covered with a cover, and the magnetic force of the magnet portion can be adjusted by changing the size and material of the cover. Therefore, it is possible to efficiently adjust the detection area of the magnet sensor when assembling to the sliding door or performing maintenance.

Partial longitudinal front view of the locking device of the embodiment (locked state) Enlarged view of the main part of FIG. An exploded perspective view of the vertical frame side of FIG. A partial vertical front view showing a case where the sliding door is locked in the adjustment work corresponding to FIG. A partial vertical front view illustrating the operation when the sliding door is locked in the closed state corresponding to FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the sliding door locking device includes an electric drive unit 11 and a main body portion 12 that are vertically connected and integrated, and includes an electric lock 1 that is attached to the door end portion of the sliding door door main body D. A lock receiver 2 provided at the door stop portion of the vertical frame F facing the door end portion of the door body D, and a door stop portion of the vertical frame F provided above the lock receiver 2 at the door stop portion of the door body D. A magnet sensor 3 for detecting the open / closed state of the sliding door corresponding to the distance between the vertical frame F and the door contact portion is provided, and the electric lock 1 is used when the magnet sensor 3 detects the closed state of the sliding door. It is operated to lock and unlock.

In the electric lock 1, the connecting plate 13 covering the side surfaces of the electric drive unit 11 and the main body 12 on the door end side is screwed to the door end of the door main body D at the upper end and the lower end, and is attached to the surface of the connecting plate 13. The stacked upper plate 14 and lower plate 15 are screwed to the electric drive portion 11 and the main body portion 12, respectively, so that they are attached to the door tip portion of the door main body D in a connected and integrated state. The connecting plate 13, the upper plate 14 and the lower plate 15 are made of steel plates.

In the main body 12 of the electric lock 1, two upper and lower dead bolts 16 and a hook plate (locking piece) 17 attached to each dead bolt 16 are held so as to be able to advance and retreat toward the door stop portion of the vertical frame F. , Each tip can appear and disappear through the openings provided in the connecting plate 13 and the lower plate 15. Each hook plate 17 is rotatably attached to the dead bolt 16 in a plane parallel to the door body D, and the hook portions 17a formed at the tips thereof are directed in a direction away from each other. Further, a keyhole 18 is provided on the front side of the main body 12 and a thumb turn (not shown) is provided on the back side so that the electric lock 1 can be operated even by manual input.

Further, although not shown, the electric drive unit 11 houses a drive mechanism including a drive motor driven by an electric signal from the outside and a battery as a drive source of the drive motor, and is a main body unit. Reference numeral 12 denotes an operation conversion mechanism for converting the operation of the drive mechanism of the electric drive unit 11 and the manual input operation from the key or thumb turn to the main body 12 into the advance / retreat operation of the deadbolt 16, and the position of the deadbolt 16 in the advancing / retreating direction. A holding mechanism for holding is stored.

Then, when the sliding door is in the closed state and the locking operation is performed from the state where the dead bolt 16 and the hook plate 17 as a whole are housed in the main body 12 (the electric driving unit 11 is driven by the electric signal instructing the locking). When the motor is driven or the key or thumb turn is operated in the locking direction), the dead bolt 16 and the hook plate 17 move forward, and their respective tips protrude from the main body 12 and enter the lock receiver 2.

At this time, the hook plates 17 rotate in opposite directions in the latter half of the advancing process, and the hook portions 17a are locked to the locking member 21 provided inside the lock receiver 2, so that the sliding door is opened. It will be locked. In this locked state, the position of the dead bolt 16 in the advancing / retreating direction is held by the action of the holding mechanism of the main body 12, and this state is held until the next unlocking operation is performed.

Further, when the unlocking operation is performed by an electric signal, a key, or a thumb turn from the above locked state, each component of the electric drive unit 11 and the main body portion 12 operates in the direction opposite to that at the time of locking, and the dead bolt 16 and the hook plate 17 are operated. Is stored in the main body 12 to be in an unlocked state, and the unlocked state is held by the holding mechanism of the main body 12.

On the other hand, as shown in FIGS. 2 and 3, the lock receiver 2 is formed by fitting the above-mentioned locking member 21 inside a rectangular box-shaped strike box 22 whose one side is open. The strike box 22 has plate-

shaped mounting portions

22a and 22b extending vertically from the opening, and the door of the vertical frame F together with the magnet sensor 3 is in a posture in which the opening is directed toward the main body portion 12 of the electric lock 1. It is attached to the hit part. Then, in the locking member 21, the rectangular lid portion 21a is fitted into the opening of the strike box 22, and the claw portions 21b extending in the horizontal direction from the upper and lower edges of the lid portion 21a are in contact with the upper and lower walls of the strike box 22, respectively. ing.

The magnet sensor 3 is an integrated type having a magnet portion and a sensor portion built-in, is formed in a cylindrical shape, and is press-fitted into a cap 31 having a shape covering one end surface and the cylindrical surface thereof. The cap 31 is fitted into the mounting hole 32a of the sensor mounting member 32 having a U-shaped cross section with one end surface of the magnet sensor 3 facing the door tip portion (upper plate 14 of the electric lock 1) of the door body D. There is.

Then, the strike box 22 of the lock receiver 2, the sensor mounting member 32, and the strike plate 4 covering both members thereof are attached to the sensor mounting member from the surface side of the strike plate 4 via the plate-shaped mounting portion 22a on the upper end side of the strike box 22. The screw 5 passed through the back surface side of the 32 and the nut 6 connected to the screw 5 are integrated, and the upper and lower ends of the strike plate 4 are the plate-shaped mounting portion 32b of the sensor mounting member 32 and the plate-shaped mounting portion 32b, respectively. It is screwed to the door stop portion of the vertical frame F via the plate-shaped mounting portion 22b on the lower end side of the strike box 22.

Here, among the members that are the covers that cover the magnet sensor 3, the cap 31 is made of resin, and the sensor mounting member 32 and the strike plate 4 are made of steel, and the thickness and size of these covers can be changed. By changing the material, the magnetic force of the magnet portion of the magnet sensor 3, that is, the detection region of the open state and the closed state of the sliding door can be appropriately set.

Further,

openings

4a and 21c for receiving the dead bolt 16 and the hook plate 17 of the electric lock 1 inside the lock receiver 2 are vertically provided on the lid portion 21a of the locking member 21 of the strike plate 4 and the lock receiver 2, respectively. There are two each. Then, in the locking member 21, the upper wall 21d of the upper opening 21c is moved upward toward the back side of the lock receiver 2 in order to guide the upper and lower hook plates 17 to the back side of the lock receiver 2, respectively, as will be described later. The lower wall 21e of the lower opening 21c is a slope that inclines downward toward the back side of the lock receiver 2.

This sliding door locking device has the above configuration, and even if the electric lock 1 is locked as shown in FIG. 4 during assembly or maintenance on the sliding door, the hook portion 17a of the hook plate 17 is the strike plate 4. When staying at the position (the sliding door is not locked), the magnet sensor 3 detects the open state of the sliding door, and when the electric lock 1 is locked as shown in FIG. 5, the hook portion 17a of the hook plate 17 becomes the opening of the lock receiver 2. When the magnet sensor 3 rotates in the vicinity and collides with the locking member 21, the magnetic force of the magnet portion of the magnet sensor 3 is adjusted so that the magnet sensor 3 detects the closed state of the sliding door.

Here, when the state shown in FIG. 5 is reached by the locking operation of the electric lock 1, the hook portion 17a of each hook plate 17 is below the upper wall 21d and the lower opening 21c of the upper opening 21c of the locking member 21. Guided by the wall 21e, it rotates while entering the back side of the lock receiver 2 together with the dead bolt 16. Finally, as shown in FIGS. 1 and 2, the hook portion 17a of each hook plate 17 is locked to the locking member 21, and the sliding door is securely locked. Further, at this time, since the door body D is pulled toward the vertical frame F side, the gap between the door tip portion of the door body D and the door contact portion of the vertical frame F is also smaller than that in the state of FIG.

That is, in this sliding door locking device, as described above, the magnet sensor 3 detects the open state when the door end portion of the door body D and the door contact portion of the vertical frame F are in a position where they cannot be locked reliably. The magnet sensor 3 detects the closed state when the door end portion of the door body D and the door stop portion of the vertical frame F approach each other to a position where they can be securely locked.

Therefore, if the electric lock 1 is locked while the magnet sensor 3 is detecting the closed state, the sliding door can be reliably locked. Further, when a monitoring system for preventing prying open is installed in the sliding door, even if a visitor or the like tries to open the locked sliding door door body D, the magnet sensor 3 does not detect the opened state. There is no risk that the monitoring system will issue a prying open alarm.

The open state and closed state detection areas of the magnet sensor 3 can be easily adjusted by changing the dimensions and materials of the member covering the magnet sensor 3 when assembling to the sliding door or performing maintenance. it can.

Further, in this embodiment, since the battery for driving the drive motor is incorporated in the electric lock 1, when the conventional electric lock is attached to the door body of the sliding door, a dedicated energizing metal fitting and wiring work are required. Compared with the above, the cost for manufacturing and installation work can be suppressed.

The sliding door locking device of the present invention is not limited to the above-described embodiment, and the magnet portion of the magnet sensor that detects the open / closed state of the sliding door is covered with a cover for adjusting the magnetic force of the magnet portion. Anything that exists will do.

For example, in the embodiment, the entire integrated magnet sensor is covered with a cap, a sensor mounting member, and a strike plate, but as a magnet sensor, the magnet part and the sensor part are formed separately, and one of them is in the vertical frame and the other is in the vertical frame. It is also possible to use a sensor that can be attached to the door body and cover only the magnet part with a cover.

Further, as the electric lock, a lock or unlocking operation may be used, which is provided with an authentication unit that can be operated by a personal identification number, an RFID card, a smart phone application, etc. In that case, since the installation position of the authentication unit may be set according to the application of the locking device, it can be installed at a position and height that are easy for a wheelchair user to operate, for example. Further, if the authentication unit has a built-in BLE communication component, the locking / unlocking of the sliding door can be remotely controlled by wireless communication.

1 Electric lock 2 Lock receiver 3 Magnet sensor 4 Strike plate 11 Electric drive unit 12 Main body 16 Dead bolt 17 Hook plate (locking piece)
17a Hook portion 21 Locking member 21c Opening 21d Upper wall (slope)
21e Lower wall (slope)
22 Strike box 31 Cap 32 Sensor mounting member

Claims

An electric lock that is attached to the door end of the door body of the sliding door and advances and retracts the locking piece toward the door stop of the vertical frame facing the door, and is provided on the door stop of the vertical frame. A magnet that detects the open / closed state of a sliding door according to the distance between the lock receiver having a locking member that locks the locking piece of the electric lock and the door end portion of the door body and the door stop portion of the vertical frame. In a sliding door locking device equipped with a sensor and in which the electric lock is operated to lock / unlock when the magnet sensor detects a closed state of the sliding door.
A sliding door locking device, wherein the magnet portion of the magnet sensor is covered with a cover for adjusting the magnetic force of the magnet portion.
The locking piece of the electric lock is rotatably arranged in a plane parallel to the door body, and the electric lock is locked while the magnet sensor detects the closed state of the sliding door. The sliding door locking device according to claim 1, wherein the locking piece sometimes rotates while entering the lock receiver and is locked to the locking member of the lock receiver.
The locking member of the lock receiver is formed with a slope that guides the locking piece to the back side of the lock receiver when the locking piece of the electric lock collides with the vicinity of the opening of the lock receiver during rotation. The sliding door locking device according to claim 2, wherein the sliding door is locked.