JP6050971B2 - Sliding door locking device and sliding door structure - Google Patents

Description

  The present invention relates to a sliding door locking device and a sliding door structure for improving the locking performance of the sliding door.

  The sliding door is a door whose door plate operates linearly. For this reason, it can be easily installed even when the space around the door is small as compared with the hinged door in which the door plate makes a circular motion. On the other hand, the sliding door is likely to have a large frictional force between the door plate and the support frame (sill and duck). For this reason, especially when the weight of the door plate is large, the sliding door may require a larger force than the hinged door to open and close.

  Therefore, conventionally, a sliding door using a hanger rail or a V-shaped rail has been adopted in order to facilitate the opening and closing of the sliding door even when the door plate is heavy. In particular, the hanger rail can omit the lower frame (the sill), and makes it easy to make the living space barrier-free in that a step can be eliminated from the floor.

  Conventionally, sickle locks (for example, see Patent Documents 1 and 2) are generally used as locking devices for sliding doors. A sickle lock typically has a sickle-shaped hook (engagement member) provided to be rotatable between a locked position and an unlocked position, and a receptacle having an opening. In such a sickle lock, the hook is rotated to the locking position with the door closed, and thus the hook is inserted into the receiving tool to engage the hook with the receiving tool.

  Usually, the main body of the sickle lock including the hook is attached to the door tip of the sliding door, and the receiving device with which the hook engages is attached to the vertical frame that contacts the door tip of the sliding door. Since the sickle lock is a commonly used lock, there are many variations of commercial products. By using the sickle lock in the locking device, the locking device can be realized at low cost.

JP 2008-127743 A JP 2010-229718 A

  However, for example, in the sliding door using the hanger rail, when the lower part of the sliding door is not supported by the sill, the sliding door swings in the horizontal direction (front-rear direction) perpendicular to the operation direction (left-right direction). It becomes easy to do. For this reason, if a sickle lock is used for the locking device of the sliding door, the position of the sickle lock main body including the hook provided at the door tip of the door plate and the position of the support provided on the vertical frame are shifted in the front-rear direction. Therefore, locking may not be performed smoothly.

  In a nursing facility or the like, it is desired that a locking device made of a sickle lock be an auto-lock in order to ensure the safety of a care recipient. And, when such an automatic lock locking device is applied to the above sliding door, the sliding door bounces when the sliding door is closed vigorously, and the hook does not engage well with the hook. May be rotated. In such a case, the door is left without being locked, which causes difficulty in ensuring safety.

  Further, for example, when the user closes the sliding door while pulling the sliding door forward or pushing it backward, a positional deviation occurs between the sickle lock body and the receiving tool. In addition, even when a ventilation fan is used in the room, the sliding door moves so as to be drawn into the interior of the room, thereby causing a positional shift between the sickle lock body and the receiving tool. As described above, due to various reasons, in an auto-lock type locking device, the door may be left without being locked.

  Accordingly, the present invention provides a sliding door locking device and a sliding door structure that can be easily and reliably locked with respect to a locking device including a sickle lock so that the positioning of the sickle lock body and the receiver is automatically performed. It is intended to provide.

One aspect of the present invention comprises a first lock and a second lock,
The first lock is a sickle lock and the second lock is a magnetic lock;
The sickle lock is provided on one of a sliding door door and a vertical frame with which the door tip abuts, and is provided on the other of the door tip and the vertical frame. A receiving member engaging with the engaging member,
The engaging member rotates between a locking position that engages with the receiving tool and an unlocking position that does not engage with the receiving tool,
The magnet lock includes a magnet lock main body including an electromagnet provided at one of the door tip and the vertical frame, and a lock plate that is provided at the other of the door tip and the vertical frame and attracts the electromagnet. And a locking device for sliding doors.

Another aspect of the present invention is a sliding door structure including a sliding door, a vertical frame with which the door end of the sliding door abuts, and a locking device that locks the sliding door,
The locking device has a first lock and a second lock;
The first lock is a sickle lock and the second lock is a magnetic lock;
The sickle lock is provided on either the door tip of the sliding door or the vertical frame on which the door tip abuts, and the other side of the door tip and the vertical frame. And a receiver that engages with the engaging member,
The engaging member rotates between a locking position that engages with the receiving tool and an unlocking position that does not engage with the receiving tool,
The magnet lock includes a magnet lock main body including an electromagnet provided at one of the door tip and the vertical frame, and a lock plate that is provided at the other of the door tip and the vertical frame and attracts the electromagnet. And a sliding door structure.

  According to the present invention, when the sliding door is closed, the positioning of the sickle lock body and the receiver is automatically performed, so that the locking of the sickle lock becomes easy and reliable. Moreover, since the sliding door is prevented from bouncing, for example, when the sickle lock is auto-locked, the sickle lock can be reliably locked without causing a locking failure.

It is a front view which shows schematic structure of the sliding door structure to which the locking device for sliding doors which concerns on one Embodiment of this invention was applied. It is a perspective view of a sliding door structure. It is a perspective view of the rail engaging tool (hanger rail compound vehicle) used for a sliding door structure. It is a perspective view of the hanger rail used for a sliding door structure. It is the front view (b) and side view (a) of a sliding door which show the installation state of the sickle-lock main body used for a locking device. It is the front view (a) and side view (b) of a vertical frame which show the installation state of the sickle lock receptacle used for a locking device. It is the front view (b) and side view (a) of a sliding door which show the installation state of the magnet lock main body used for a locking device. It is the front view (a) and side view (b) of a vertical frame which show the installation state of the lock plate of the magnet lock used for a locking device.

  The sliding door locking device of the present invention includes a first lock and a second lock. Here, the first lock is a sickle lock and the second lock is a magnet lock. The number of locks is not limited to two and can be three or more. For example, two or more magnet locks or two or more sickle locks can be provided. Alternatively, a lock of a system other than the sickle lock and the magnet lock can be added to the sickle lock and the magnet lock.

  The sickle lock is, for example, a sickle lock main body including a sickle-shaped engagement member (hereinafter referred to as a hook) provided at a door tip of a sliding door, and a receiver provided on a vertical frame on which the door tip comes into contact. Including ingredients. It is also possible to provide a receiver on the sliding door and a sickle lock body on the vertical frame. The hook rotates between a locking position that engages with the receiving tool and an unlocking position that does not engage with the receiving tool.

  On the other hand, the magnet lock includes, for example, a magnet lock main body including an electromagnet provided at a door end of a sliding door, and a lock plate provided in a vertical frame and attracted to the electromagnet. It is also possible to provide a lock plate on the sliding door and a magnet lock body on the vertical frame.

  According to the above configuration, when the sliding door is closed, the door tip is automatically positioned with respect to the vertical frame by the attractive force between the electromagnet of the magnet lock and the lock plate. Thereby, the position shift between a sickle-lock main body and a holder is eliminated automatically. As a result, it becomes easy to lock the sickle lock.

  That is, the magnet lock is normally energized at all times. Therefore, when the electromagnet of the magnet lock and the lock plate approach when closing the sliding door, a large attractive force acts between them. As a result, even if the user closes the sliding door while pulling the sliding door toward you or pushing it back, the magnetic lock will automatically shift the position between the sickle lock body and the holder. The sliding door is closed. Thus, since the door end of the sliding door is automatically positioned, the sickle lock can be easily locked.

  Further, by combining the magnet lock and the sickle lock, for example, the locked state of the locking device can be maintained by the sickle lock even during a power failure. Therefore, even in such a case, the locking device is not unlocked, so that the door can be securely locked and the safety can be improved. In addition, when the door is locked only with the magnet lock, it may be possible that the magnet lock is unlocked when a large force is applied. Such a situation can be prevented by using a sickle lock and a magnetic lock in combination. For example, by installing the sickle lock and the magnet lock at a distance of 5 cm or more, it is possible to suppress the rotation and vertical movement of the sliding door in the operation plane (YZ plane in FIG. 2) in the locked state. Thereby, for example, even in a sliding door structure in which the vertical movement of the sliding door is facilitated without providing a lower frame (sill), unauthorized unlocking by operating the sliding door in the vertical direction can be prevented.

  Furthermore, according to said structure, it is prevented that the sliding door bounces after contact | abutting to a vertical frame with the attractive force of a magnet lock. Therefore, for example, even when the sickle lock is an auto-lock type, it is possible to prevent a locking failure that is caused by the hooking of the sliding door to be rotated and fixed to the locking position without engaging the receiving member. Therefore, locking can be performed reliably and the safety of residents and the like can be ensured.

  The locking device of the present invention includes a detection mechanism for detecting the proximity of the sliding door and the vertical frame, and automatically energizes the electromagnet when the proximity of the sliding door and the vertical frame is detected to automatically lock the magnet lock. And an automatic locking mechanism for locking. As a result, in the case of a door that has been opened for a long time, it is possible to prevent a loss of power caused by always energizing the magnet lock.

  In addition, by including an unlocking mechanism for unlocking at least one of the sickle lock and the magnet lock using electromagnetic information in the locking device for sliding doors, for example, even when those locks have an auto-lock system Thus, the locking device can be easily unlocked. More specifically, electromagnetic information for unlocking is recorded on a magnetic stripe card and used as a “key”, thereby making it easy to unlock the locking device. In addition, since the magnetic stripe card is inexpensive, it is easy to reissue such a key. Therefore, the key can be supplied to a new user at a low cost even when the user of the key is frequently changed in a care facility. Moreover, since the key is updated only by updating the electromagnetic information for unlocking, it is easy to ensure security. Such an unlocking mechanism is not limited to one using electromagnetic information, but may be an unlocking mechanism using electrical information such as using an IC card or the like.

  Further, when the sickle lock and the magnet lock are provided at a predetermined distance (for example, 5 cm or more), for example, the sickle lock is provided at a height that is easy to operate, and the magnet lock is separated by 5 cm or more. It can be provided above or below the sickle lock. Alternatively, one magnet lock can be provided on each of the upper and lower sides with a sickle lock in between.

  In the present invention, the sliding door can be slidably supported by the hanger rail, and the hanger rail can be inclined so as to urge the sliding door toward the vertical frame.

  By slidingly supporting the sliding door with the hanger rail, the sliding door can be easily opened and closed even when the weight of the sliding door is large. Further, the sliding door can be automatically closed by inclining the hanger rail so as to urge the sliding door toward the vertical frame. This can prevent the door from being left open. Alternatively, even if the inclination of the hanger rail is such that the sliding door does not automatically close, it is easy to close the sliding door with the help of the biasing force.

  Furthermore, when the locking device is an auto-lock, the door is automatically locked by automatically closing the sliding door by tilting. Thereby, a door can be fundamentally made into a locked state. Therefore, it is easy to ensure the safety of the care recipient in a care facility or the like. Or even if it is the inclination which is a grade which does not close a sliding door automatically, locking by an automatic lock | rock becomes easy because it becomes easy to close a sliding door.

  In addition, in the sliding door structure in which the hanger rail is inclined in the direction in which the sliding door is closed, the sliding door is easy to close, but the momentum at the time of closing is also easily obtained. As a result, the bounding of the sliding door after the door tip and the vertical frame collide also increases. In that respect, according to the present invention, the bounding of the sliding door can be prevented even when the door tip and the vertical frame collide violently due to the attractive force of the magnet lock. Therefore, the sickle lock which is an automatic lock can also be locked securely.

  On the other hand, the sliding door structure of this invention is provided with a sliding door, the vertical frame which the door end of a sliding door contacts, and said locking device which locks a sliding door. Or the sliding door structure of this invention is provided with the sliding door, the vertical frame which the door end of a sliding door contacts, the hanger rail which supports a sliding door slidably, and said locking device which locks a sliding door.

  Here, in the sliding door structure, a groove in which the door end is fitted can be formed on the contact surface of the vertical frame that contacts the door tip. At this time, the sickle lock holder, the lock plate of the magnet lock, and the like are formed inside the groove. According to such a structure, it becomes difficult to insert a bar or the like between the vertical frame and the door. Therefore, unauthorized unlocking of the locking device can be prevented. Even when such a groove is formed, the door can be automatically positioned so as to fit the groove by the attractive force of the magnet lock. Therefore, it is possible to achieve both locking reliability and safety after locking.

  Furthermore, the sliding door structure of the present invention can be provided with a damper that cushions the collision between the sliding door and the vertical frame. Thereby, also when a hanger rail inclines in the direction which closes a sliding door, the momentum when a sliding door contact | abuts with a vertical frame can be made small. As a result, the positioning of the door end by the attractive force of the magnet lock can be made more reliable, and the bounce and the like can be suppressed, so that the locking can be performed more reliably.

Embodiments of the present invention will be described below with reference to the drawings.
(Embodiment 1)
FIG. 1 is a front view of a sliding door structure to which a locking device according to an embodiment of the present invention is applied. FIG. 2 is a perspective view showing the sliding door structure. FIG. 3 is a perspective view showing a hanger duplexer that is a rail engagement tool. FIG. 4 is a perspective view of the hanger rail.

  The sliding door structure 10 in the illustrated example includes a sliding door (door plate) 1, a hanger rail (hereinafter simply referred to as a rail) 2 that slidably supports the sliding door 1, a door pocket 3 that houses the sliding door 1, and a door tip 1 a of the sliding door 1. Is provided with a vertical frame 4 that contacts one side surface (contact surface 4a), and a locking device 5 that locks the sliding door 1 with respect to the vertical frame 4. The vertical frame 4 has a prismatic shape, the lower end is joined to the floor 7, and the upper end is joined to an upper frame (kamoi) 6 arranged horizontally. The surface of the vertical frame 4 opposite to the contact surface 4 a is joined to the wall 8.

  A pair of guides 3 b is attached to the lower part of the opening 3 a of the door pocket 3. Thereby, the swing of the sliding door 1 in the horizontal direction (front-rear direction, X-axis direction) perpendicular to the operating direction (left-right direction, Y-axis direction) is suppressed. In the sliding door structure 10, a lower frame (sill) can be omitted. Thereby, it becomes easy to make the living space barrier-free. On the other hand, the displacement of the lower part of the sliding door 1 in the front-rear direction is suppressed only by the guide 3b, and the sliding door 1 may be easily shaken in the front-rear direction as compared with the case where the rail is provided on the sill and the sliding door 1 is supported. .

  The rail 2 is attached to the upper frame 6 so as to be inclined by an angle θ (for example, 1 to 30 °) with respect to the horizontal direction. The direction of inclination of the rail 2 is a direction in which the sliding door 1 supported by the rail 2 is urged toward the vertical frame 4. That is, the rail 2 is attached to the upper frame 6 so as to become lower as it approaches the vertical frame 4. The angle θ can be set to an angle at which the sliding door 1 automatically closes, or can be set to an angle that assists the operation of closing the sliding door 1 without automatically closing the sliding door 1.

  Rail engaging tools 12 as shown in FIG. 3 are attached to the upper part of the sliding door 1 at a predetermined interval. The rail engaging tool 12 includes a total of four pulleys 12a including a pair of pulleys 12a arranged in the longitudinal direction of the rail 2 and another pair of pulleys 12a arranged in parallel with the pair of pulleys 12a. These four pulleys 12a are rotatably supported by a shaft support (not shown) fixed to a shaft-like support member 12b. A screw groove is formed on the outer periphery of the lower part 12c of the fixture 12b. The rail engagement tool 12 is obtained by inserting the lower part 12c into, for example, a through-hole of a plate-like mounting bracket (not shown) attached to the upper end of the sliding door 1 and sandwiching the mounting bracket with two nuts 12d in this state. Can be attached to the upper end of the sliding door 1.

  As shown in FIG. 4, the rail 2 has a substantially U-shaped (C-shaped) cross-sectional shape whose lower surface opens linearly. A pulley contact portion 2b with which the outer peripheral surface of the pulley 12a contacts is formed on both sides of the opening 2a along the linear opening 2a of the rail 2. At the boundary between each pulley contact portion 2b and the opening 2a, a protrusion 2c is formed so as to protrude upward.

  The rail 2 can be provided with a damper 16 for buffering the collision between the sliding door 1 and the vertical frame 4. The damper 16 can be composed of a cylinder 16a and a movable shaft 16b connected to a piston (not shown). A through groove having a certain length is provided on the side surface of the rail 2, and an engaging portion 16 c that engages with the rail engaging tool 12 is provided at the tip of the movable shaft 16 b. And when the sliding door 1 closes, the cylinder 16a is installed so that the engagement part 16c and the rail engagement tool 12 may start engagement in the position (for example, position of FIG. 1) before completely closing. Thereby, the speed when the sliding door 1 contacts the vertical frame 4 can be decelerated from the position (for example, the position of FIG. 1) before the sliding door 1 is completely closed.

The locking device 5 includes a sickle lock 20 and a magnet lock 30.
5 and 6 show details of the sickle lock. The sickle lock 20 includes a sickle lock main body 21 attached to the door end 1 a of the sliding door 1 and a receiver 22 attached to the vertical frame 4. It is also possible to attach the sickle lock body 21 to the vertical frame 4 and attach the receptacle 22 to the door 1a. Hereinafter, the case where the sickle lock main body 21 is attached to the door end 1a of the sliding door 1 and the receiving tool 22 is attached to the vertical frame 4 will be described as an example.

  The sickle lock body 21 includes a sickle-shaped engaging member 23 that rotates between a locked position (shown by a solid line in FIG. 5) and an unlocked position (shown by a two-dot chain line in FIG. 5). It is out. At this time, the engaging member 23 can be rotated by an electric motor (not shown). That is, the sickle lock 20 can be an electric sickle lock. Thereby, the sickle lock 20 can be locked and unlocked by remote control.

  Furthermore, the sickle lock 20 can be an auto-lock system that can automatically lock by detecting the contact between the sliding door 1 and the vertical frame 4. As such a detection mechanism, as an example, it is conceivable to arrange a contact piece 24 made of a conductor so that the sliding door 1 and the vertical frame 4 are pushed into the sickle lock body 21 when they contact each other. . Then, a switch (not shown) having two contact points arranged opposite to each other is arranged so that the contact piece 24 is sandwiched between the two contact points when the contact piece 24 moves into the sickle lock body 21. As a result, the two contact points of the switch are electrically connected to each other via the contact piece 24.

  By connecting the electric motor that rotates the engaging member 23 via the switch as described above to the power source, when the sliding door 1 and the vertical frame 4 abut, the sliding door 1 and the vertical frame 4 abut. While being able to detect, by making said switch into a conduction | electrical_connection state by the contact piece 24, the engaging member 23 can also be automatically rotated to a locking position with an electric motor. Further, the sickle lock main body 21 can be provided with a thumb turn 25 for manually locking and unlocking the sickle lock 20.

  The receiving tool 22 engages with the engaging hole 22a into which the engaging member 23 rotates and is inserted when the sickle lock 20 is locked, and the engaging member 23 at the locking position, and the sliding door 1 is moved to the vertical frame 4. And a locking plate 22b that locks against. The engagement hole 22a is open to the locking plate 22b. The locking plate 22b can be provided with a screw insertion hole for screwing the receiving member 22 to the vertical frame 4. And the receiving tool 22 is attached to the contact surface 4a contact | abutted with the door-end 1a of the vertical frame 4. FIG. A groove 4b can be provided in the contact surface 4a. At this time, the receiving tool 22 can be provided inside the groove 4b.

  And when locking the sickle lock 20, the door tip 1a is made to contact | abut to the door tip contact area | region AR (refer FIG.6 (b)) of the contact surface 4a (or the inside of the groove | channel 4b) of the vertical frame 4. FIG. In this state, the engaging member 23 is rotated to the locking position by operating the electric motor or the thumb turn 25, whereby the engaging member 23 is inserted into the engaging hole 22a, and the sickle lock 20 is locked.

  7 and 8 show the magnet lock. The magnet lock 30 includes a magnet lock body 31 including an electromagnet 31 a attached to the door end 1 a of the sliding door 1, and a lock plate 32 attached to the vertical frame 4. The lock plate 32 is attached to the contact surface 4a (or the inside of the groove 4b) of the vertical frame 4 by a fixture 32a. It is also possible to attach the magnet lock body 31 to the vertical frame 4 and attach the lock plate 32 to the door 1a. Hereinafter, the case where the magnet lock main body 31 is attached to the door end 1a of the sliding door 1 and the lock plate 32 is attached to the vertical frame 4 will be described as an example.

  The positional relationship between the magnet lock body 31 and the lock plate 32 is set so that the door tip 1a contacts the door contact region AR of the contact surface 4a when the electromagnet 31a is attracted to the lock plate 32. Yes. And the magnet lock 30 can be made into the auto-lock system locked automatically, when the sliding door 1 is closed by always energizing the electromagnet 31a.

  As described above, when the magnet lock 30 is set to the auto-lock system, an attractive force acts between the electromagnet 31a and the lock plate 32 when the sliding door 1 is closed. As a result, the door tip 1a can be easily brought into contact with the door tip contact region AR of the contact surface 4a (or inside the groove 4b).

  In view of the fact that the lockability of the locking device 5 is secured by the sickle lock 20, the selection of the magnet lock 30 can be performed with emphasis only on the positioning function of the door end 1 a of the magnet lock 30. For example, a magnet lock having a relatively low locking strength such that the locking strength is 60 kgf (about 588 N) or less can be used for the magnet lock 30. Thereby, the power consumption of the magnet lock 30 can be reduced, and the running cost of the locking device 5 can be reduced. Conversely, when emphasizing the lockability of the magnet lock 30, a magnet lock having a relatively large locking strength of 150 kgf (about 1471 N) or more can also be used.

  It is also conceivable that the magnet lock 30 is not energized at all times but energized only when the sliding door is closed. For example, a detection mechanism for detecting the proximity of the door tip and the vertical frame may be provided, and energization of the magnet lock 30 may be started when the proximity of the door tip and the vertical frame is detected. Thereby, the running cost of the locking device 5 can be further reduced. As an example of such a detection mechanism, it is conceivable that a permanent magnet is attached to the lock plate 32 with a magnetic pole arrangement that attracts the electromagnet 31a in an energized state. The proximity of the electromagnet 31a and the lock plate 32 can be detected by providing the sliding door structure 10 with a current sensor that detects an induced current generated in the electromagnet 31a that is not energized. Alternatively, the magnet lock 30 can be simply set to auto-lock by simply energizing the electromagnet 31a.

  It is also possible to start energization to the electromagnet 31a only when a switch operation or the like for locking is performed without the magnet lock 30 being automatically locked. Even in that case, the locking device 5 includes double locks of the sickle lock 20 and the magnet lock 30, so that safety is improved. And since a locked state is maintained with a sickle lock also in the case of a power failure, the safety | security of a resident etc. can be ensured.

  In addition, as shown in FIG. 1, the sliding door structure 10 can be provided with an unlocking device 28 that uses electromagnetic information. The unlocking device 28 can include a memory 26 that stores predetermined electromagnetic information, and a reading device 27 that reads the electromagnetic information from a magnetic stripe card or the like on which the electromagnetic information is recorded. At this time, the reading device 27 can be provided with a slot (not shown) for inserting the magnetic stripe card and a groove through which the magnetic stripe passes.

  By adopting a configuration in which the sickle lock 20 and the magnet lock 30 (or at least one of the sickle lock 20 and the magnet lock 30) can be unlocked by the unlocking device 28 as described above, these locks are set to an auto-lock system. Even in this case, it is possible to easily unlock those locks. Further, since the magnetic stripe card as a “key” is inexpensive, it can be easily reissued. Therefore, even in an environment where the user of the key is frequently changed, the key can be supplied to a new user at a low cost. Moreover, since the key is updated only by updating the electromagnetic information for unlocking, it is easy to ensure security.

  Such an unlocking device is not limited to a device using a magnetic stripe card, and may be a device using an IC card, for example. That is, the unlocking device can be an unlocking mechanism using electrical information. Also in this case, the unlocking device can be provided with a memory for storing electrical information and a reading device for reading the electrical information. Thereby, the sickle lock 20 and the magnet lock 30 (or at least one of the sickle lock 20 and the magnet lock 30) can be unlocked by simply holding the card over the reading device.

  Hereinafter, the operation of the locking device 5 will be described by taking as an example the case where both the sickle lock 20 and the magnet lock 30 are of the auto-lock system.

  In a state where the sliding door 1 is open (for example, the state shown in FIG. 1), the operator places a hand on the handle 14 of the sliding door 1 and pushes the sliding door 1 toward the vertical frame 4. Accordingly, the sliding door 1 starts to move toward the vertical frame 4 with the help of the inclination of the rail 2. Alternatively, the above-mentioned angle θ can be set to a larger angle so that the sliding door 1 automatically starts moving toward the vertical frame 4.

  When the door end 1a of the sliding door 1 approaches the vertical frame 4, the attractive force between the electromagnet 31a of the magnet lock 30 and the lock plate 32 that are already energized increases. At this time, if there is a displacement in the front-rear direction (X-axis direction) between the door tip 1a and the door-tip contact area AR, the suction force is not only in the left-right direction but also in the front-back direction with respect to the sliding door 1. Also works. As a result, the above-described deviation is eliminated, the door tip 1a and the door tip contact area AR come into contact with each other, and the sickle lock body 21 and the receiving tool 22 face each other. Even when the groove 4b is formed on the contact surface 4a of the vertical frame 4, the door end 1a is automatically fitted into the groove 4b. Furthermore, the bounce of the sliding door 1 is also prevented by the attractive force between the electromagnet 31a and the lock plate 32.

  When the door tip 1a comes into contact with the vertical frame 4 (door tip contact region AR), the contact piece 24 comes into contact with the locking plate 22b, and the contact piece 24 moves into the sickle lock body 21. Thereby, the detection mechanism of the sickle lock 20 detects that the sliding door 1 is closed, and as a result, the electric motor is energized and the engaging member 23 is rotated to the locked position. Thereby, the engaging member 23 and the locking plate 22b are engaged, the sliding door 1 is locked to the vertical frame 4, and the sickle lock 20 is in a locked state.

  As described above, according to the locking device 5 of the present embodiment, when the sliding door 1 is closed, the sliding door 1 is automatically positioned with respect to the vertical frame 4 by the suction generated by the magnet lock 30. The lock 20 can be surely locked. As a result, the locking property of the locking device 5 can be improved. Since the door end 1a is fitted in the groove 4b, it becomes difficult to open the sliding door 1 with a bar or the like, and the safety is improved.

  On the other hand, when the sliding door 1 is opened, for example, a magnetic stripe card as a key is passed through a data reading groove (not shown) of the unlocking device 28 and the sickle lock 20 and the magnet lock 30 are unlocked. Alternatively, for example, the sickle lock 20 and the magnet lock 30 are unlocked by holding an IC card as a key over a corresponding reading device of the unlocking device. Alternatively, the engagement member 23 is rotated to the unlocked position by the operation of the thumb turn 25 to unlock the sickle lock 20, and the energization to the electromagnet 31a of the magnet lock 30 is stopped by the operation of a switch (not shown), The magnet lock 30 is unlocked. In the state as described above, the operator places a hand on the handle 14 and pushes the sliding door 1 toward the door pocket 3. Thereby, the sliding door 1 is opened.

  The locking device and the sliding door structure of the present invention can lock a sliding door having a robust structure easily and reliably. For this reason, this invention can be applied suitably for a nursing care facility, for example.

  DESCRIPTION OF SYMBOLS 1 ... Sliding door, 1a ... Door tip, 2 ... Rail, 3 ... Door bag, 4 ... Vertical frame, 4a ... Contact surface, 5 ... Locking device, 6 ... Upper frame (kamoi), 10 ... Sliding door structure, 12 ... Rail connection 20 ... sickle lock, 21 ... sickle lock body, 22 ... receiver, 22a ... engagement hole, 22b ... locking plate, 23 ... engagement member, 24 ... contact piece, 25 ... thumb turn, 28 ... unlock Lock device, 30 ... magnet lock, 31 ... magnet lock body, 31a ... electromagnet, 32 ... lock plate, AR ... door end contact area

Claims (5)

Comprising a first lock and a second lock ;
The first lock is a sickle lock and the second lock is a magnetic lock;
The sickle lock is provided on one of a sliding door door and a vertical frame with which the door tip abuts, and is provided on the other of the door tip and the vertical frame. A receiving member engaging with the engaging member,
The engaging member rotates between a locking position that engages with the receiving tool and an unlocking position that does not engage with the receiving tool,
The magnet lock includes a magnet lock main body including an electromagnet provided at one of the door tip and the vertical frame, and a lock plate that is provided at the other of the door tip and the vertical frame and attracts the electromagnet. A sliding door locking device. A detection mechanism for detecting proximity of the sliding door and the vertical frame;
The sliding door locking device according to claim 1, further comprising: an automatic locking mechanism that automatically rotates the engagement member to the locking position when proximity of the sliding door and the vertical frame is detected. The sliding door is slidably supported by a hanger rail,
The sliding door locking device according to claim 1 or 2, wherein the hanger rail is inclined so as to urge the sliding door toward the vertical frame. A sliding door structure comprising a sliding door, a vertical frame with which the door tip of the sliding door abuts, and a locking device for locking the sliding door,
The locking device has a first lock and a second lock;
The first lock is a sickle lock and the second lock is a magnetic lock;
The sickle lock is provided on either the door tip of the sliding door or the vertical frame on which the door tip abuts, and the other side of the door tip and the vertical frame. And a receiver that engages with the engaging member,
The engaging member rotates between a locking position that engages with the receiving tool and an unlocking position that does not engage with the receiving tool,
The magnet lock includes a magnet lock main body including an electromagnet provided at one of the door tip and the vertical frame, and a lock plate that is provided at the other of the door tip and the vertical frame and attracts the electromagnet. Including sliding door structure.   The sliding door structure of Claim 4 in which the groove | channel which the said door end fills is formed in the contact surface contact | abutted with the said door tip of the said vertical frame.

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