JP6897972B2 - Sliding door lock - Google Patents

Description

The present invention relates to a sliding door lock.

Conventionally, a sliding door incorporating a door closer or a damper has been used to prevent the sliding door from bouncing when the door is closed.

WO2015 / 129494 JP-A-2007-2497

However, the sliding door equipped with the door closer has a problem that the door feels heavy from beginning to end of the door opening operation. Further, the sliding door provided with the damper has a problem that it is necessary to open the door with a stronger force than the strong resistance force received from the door when the door is opened due to its mechanism.

Therefore, as a means for solving the above problems, the sliding door lock according to the present invention faces a contact piece that can be arranged inside the door end side of the door plate constituting the sliding door and the contact piece of the door end side vertical frame that receives the door plate. When the hitting piece abuts against the receiving piece, the hitting piece is locked by magnetic attraction, and the hitting piece changes from the locked state to the facing of the receiving piece. It is characterized in that it is unlocked by moving in parallel with the surface.

A sliding door is a door that opens and closes by sliding the door plate parallel to the opening surface of the door frame along a groove or the like provided along the door frame.

The shapes of the support piece and the receiving piece may be formed on a polyhedron such as a rectangular parallelepiped, but may be formed on a thin flat plate as long as a sufficient magnetic attraction force is exhibited.

In the portion of the sliding door lock according to the present invention provided with the contact piece, it is preferable that the contact piece is housed in the lock case. This is because it is not necessary to provide a structure for directly installing the reliance piece on the door plate itself by accommodating the reliance piece in the lock case. In addition, the reliance piece can be installed on the door plate simply by fitting and fixing the lock case in which the reliance piece is arranged inside into the case storage space provided inside the door plate, which simplifies the installation work on the door plate. Can be done.

It is preferable that the portion of the sliding door lock according to the present invention provided with the receiving piece is housed inside the receiving piece formed in a case shape. This is because it is not necessary to provide a structure for directly installing the receiving piece on the door end side vertical frame itself by accommodating the receiving piece inside the receiving piece. In addition, the receiving piece can be installed in the vertical frame on the door end side by simply fitting the receiving piece provided in advance into the receiving storage space provided inside the vertical frame on the door end side and fixing it. Installation work on the side vertical frame can be easily performed.

Further, it is preferable that at least one of the contact piece and the receiving piece is made of a permanent magnet, and further, it is also preferable that both the contact piece and the receiving piece are made of a permanent magnet.

If at least one of the backing piece and the receiving piece is composed of a permanent magnet, if the door plate is slid and brought close to the door end side vertical frame, the door plate is automatically attracted to the door end side vertical frame by magnetic attraction. This is because it can be fixed together with. Further, by utilizing the magnetic attraction force, it is possible to prevent the door plate from bouncing back when the door is closed.

When either the contact piece or the receiving piece is a magnetic material, the other is made of a material that can be attracted to a magnetic material such as metal by magnetic attraction. Examples of the metal include iron, cobalt, nickel and the like.

Further, if both the contact piece and the receiving piece are composed of permanent magnets, the locked state can be made stronger than in the case where either the contact piece or the receiving piece is made of a magnetic material. In this case, the facing surfaces of the hitting piece and the receiving piece are surfaces having different magnetisms. For example, when the door tip side surface of the hit piece is the south pole, the door tail side surface of the receiving piece is the north pole.

According to the present invention, by attracting the contact piece to the receiving piece by the magnetic attraction force, it is possible to prevent the door plate from bouncing due to the impact of the door plate hitting the vertical frame on the door end side when the door plate is closed. Can be done. Further, the door plate fixed to the door end side vertical frame by the magnetic attraction force between the contact piece and the receiving piece tries to separate from the door end side vertical frame in the door tail direction with the contact piece and the receiving piece facing each other. However, since it is not easily separated by the magnetic attraction force, it does not cause an unexpected opening of the door.

On the other hand, when the contact piece is translated with respect to the facing surface of the receiving piece and the surfaces facing each other are shifted, the magnetic attraction force is weakened and the door plate is unlocked, and the door plate is detached from the vertical frame on the door tip side. The door can be easily opened. The force to translate the hit piece with respect to the facing surface of the receiving piece is smaller than the force required to pull the hit piece straight away from the vertical frame on the door end side in the direction of the door butt while the hit piece and the receiving piece are facing each other. can do. The sliding door can be easily unlocked and opened when the sliding door is opened, while having the magnetic attraction required to keep the door plate sufficiently stable with respect to the vertical frame on the door end side. A sliding door lock can be realized. Here, the operation of moving the contact piece in parallel with the facing surface of the receiving piece does not need to be strictly parallel. That is, the parallel movement may include an operation in an oblique direction combined with a movement toward the door end direction or the door end direction to some extent, and the object of the present invention can be achieved by such an operation. it can.

According to the sliding door lock according to the present invention, the door opening operation can be performed independently after the magnetic attraction force on the door plate is eliminated by the operation of changing from the locked state to the unlocked state. Therefore, there is an effect that the sliding door can be opened without feeling stress due to the resistance as compared with the conventional sliding door equipped with a door closer or a damper that feels strong resistance even when the door is opened.

As the parallel movement, the contact piece can be moved with respect to the receiving piece in the height direction of the door plate or the thickness direction of the door plate, but the movement in the height direction of the door plate is more preferable. This is because if the direction of parallel movement of the backing piece is the height direction of the door plate, the door plate for attaching the sliding door lock according to the present invention can be thinned.

Further, it is also preferable that the contact piece is provided with a return mechanism that automatically returns to a position facing the receiving piece after the translation.

By providing the return mechanism, if the operation of horizontal movement with respect to the hit piece is canceled after the sliding door is opened, the hit piece can be automatically returned to the position facing the receiving piece. As a result, if the opened door plate is brought closer to the door plate side vertical frame again and brought close to it, magnetic attraction is exerted between the door plate and the door end side vertical frame, and the sliding door lock is locked. The door can be easily fixed to the vertical frame on the door end side and closed.

As the return mechanism, an elastic body attached between the backing piece and the inner wall of the lock case and applying a restoring force to the backing piece with respect to a deviation from a position facing the receiving piece is preferable. As the elastic body, a spring or a rubber body can be used.

Further, it is also preferable that a moving mechanism for moving the contact piece in parallel is provided.

As the moving mechanism, a cam or the like that can mechanically transmit a force from the outside to the piece can be used. In addition, as a moving mechanism, a rod-shaped motor that can convert an electric signal from the outside into mechanical motion, or an electric device such as a solenoid, and a rod-shaped device that transmits a predetermined force from the electric device to the hit piece A combination with a transmission member such as a body can also be used.

Furthermore, it is also preferable that the moving mechanism moves the contact piece in parallel in conjunction with the operation of the gripping member provided on the door plate.

The gripping member is provided on the outer surface of the door plate and can be operated by the user of the sliding door to perform a specific operation. By the operation, the contact piece is translated from the surface of the door plate to the moving mechanism provided inside the door plate. Transmit the force to make it. As the form of the gripping member, a puller capable of directly applying a force to the door plate in the opening / closing direction of the sliding door is preferable, and a lever or a knob may be used.

Further, it is also preferable that the receiving piece protrudes in the door tail direction by the magnetic attraction force and is attracted to the receiving piece immediately before the contact piece abuts on the receiving piece.

The door frame is distorted due to the long-term use of the sliding door, or there is an obstacle such as dust in the lower frame between the door plate and the door end side vertical frame, so that the door plate and the door end side vertical frame are separated when the door is closed. In some cases, the gap that occurs in the above cannot be eliminated. However, by providing the structure in which the receiving piece can protrude from the door end side vertical frame, the door plate closed with a gap can be fixed to the door end side vertical frame to lock the sliding door lock.

Further, the present invention is preferably a sliding door in which the contact piece is arranged on the door plate and the receiving piece is arranged on the door end side vertical frame and the sliding door lock is provided. Sliding doors can be used for room doors, cupboard doors, gates, entrance doors, and the like. The room door can also be used as a door for a hospital room. By using it as a door for a hospital room, it is possible to realize a sliding door that can be opened more easily without fear of rebounding even for a weakly sick person.

According to the present invention, it is possible to provide a sliding door lock that can be opened with a light force while having a bounce prevention function when the door is closed.

Further, it is possible to provide a sliding door lock that does not require a complicated mechanism like a conventional door closer or a damper and can realize a sliding door having a bounce prevention function at low cost.

It is a figure which shows the appearance of a part of the sliding door 2 provided with the sliding door lock 1. The alternate long and short dash line indicates a state in which the sliding door 2 is opened. It is a figure which shows the internal structure of the lock case 11 and the receiver 13 together with a part of the door plate 4 and the door end side vertical frame 5 in the sliding door 2 in a closed state, and showed the specific example of the structure of the sliding door lock 1 in a locked state. It is a thing. It is a figure which shows the internal structure of the lock case 11 and the receiver 13 together with a part of the door plate 4 and the door end side vertical frame 5, and is the figure which shows the unlocked state of a sliding door lock 1. It is a figure which shows the internal structure of the lock case 11 and the receiver 13 together with a part of the door plate 4 and the door end side vertical frame 5, and is the figure which shows the state which the sliding door 2 is opened. It is a figure which shows the internal structure of a lock case 11 and a receiver 13 together with a part of a door plate 4 and a door end side vertical frame 5, and the door is closed with a gap between the door plate 4 and the door end side vertical frame 5. It is a figure which shows the locked state of the sliding door lock 1 in the sliding door 2. It is a figure which looked at the door plate 4 provided with the gripping member 9 from the door end side. It is a figure which looked at the door plate 4 provided with the gripping member 9 and the door frame side vertical frame 5 from the plane.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. In the present specification and the drawings, components having substantially the same functional configuration are designated by the same reference numerals, so that duplicate description will be omitted.

[Specific structural example of sliding door lock 1]
FIG. 1 is a diagram showing the appearance of a sliding door 2 provided with a sliding door lock 1 according to the present invention. The sliding door 2 is a door that opens and closes by sliding the door plate 4 parallel to the opening surface along the rail provided in the lower frame 8 of the door frame 3. The door frame 3 is composed of a door end side vertical frame 5, a door tail side vertical frame 6, an upper frame 7, and a lower frame 8. A gripping member 9 is attached to the door plate 4, and the sliding door 2 can be opened by gripping the gripping member 9 and pulling the door plate 4 toward the door tail. Further, the sliding door 2 can be closed by grasping the gripping member 9 and pushing the door plate 4 in the opened state toward the door tip. In FIG. 1, the door plate 4 is provided with a window 4a.

The sliding door 2 in the present embodiment can be used as a room door of a house, a door for a hospital room, or the like.

As shown by the broken line in FIG. 1, in the sliding door lock 1, the lock case 11 in which the contact piece 10 is arranged inside the tip is fitted into the inside of the door end side of the door plate 4, and the receiving piece 12 is housed. 13 is fitted inside the vertical frame 5 on the door end side.

FIG. 2 is a cross-sectional view showing the internal structures of the lock case 11 and the receiver 13, and shows a specific example of the structure of the sliding door lock 1. In FIG. 2, the sliding door 2 is in a closed state.

The lock case 11 includes a case main body 14 and a front plate 16 which is overlapped on the front surface of the case main body 14 and attached by screws 15 and 15. A through hole 17 is formed in the front surface of the case body 14 and the front plate 16 so that the front end of the contact piece 10 housed inside the case body 14 can be exposed. The through hole 17 is formed in a size that allows parallel movement in the vertical direction with the front end of the contact piece 10 exposed.

In the closed state of the sliding door 2, the front end of the contact piece 10 is located in the upper half of the through hole 17 and faces the receiving piece 12.

The lock case 11 is fitted into a fitting space 18 provided on the door end surface of the door plate 4, and is fixed by screws 19 and 19 at the upper and lower ends of the front plate 16.

The backing piece 10 is formed by a magnet frame 21 in which the magnet 20 is wrapped with resin. In this embodiment, the magnet 20 is a permanent magnet. The magnet frame 21 is formed with an upper arm portion 23 and a lower arm portion 24 extending upward and downward from the central portion 22 that encloses the magnet 20. The upper end portion of the upper arm portion 23 is formed in the upper arm locking portion 25 bent in the door tail direction, and the lower end portion of the lower arm portion 24 is formed in the lower arm locking portion 26 bent in the door tail direction. Become.

Below the upper arm locking portion 25, an L-shaped bent base plate 27 is attached to the inner surface of the side plate 29 of the case body 14 so that the upper end surface 28 of the base is horizontal. A spring shaft 30 is vertically erected on the upper end surface 28 of the base, and the upper end portion of the spring shaft 30 penetrates the upper arm locking portion 25 formed in a plate shape. Further, a magnet frame spring 31 is wound around the peripheral surface of the spring shaft 30.

When the contact piece 10 moves downward, the magnet frame spring 31 applies a force in a direction of pushing up the lower end surface of the upper arm locking portion 25. Therefore, the upper arm portion 23, the base plate 27, and the magnet frame spring 31 function as a return mechanism for returning the downwardly moved contact piece 10 to the position before the movement.

On the other hand, a Y-shaped cam 32 that can rotate in parallel with the inner surface is provided on the inner surface of the side plate 29 of the case body 14. The cam 32 extends upward from the rotation center 33 attached to the side plate 29 via the rotation shaft pin 33a, and a rod-shaped operating arm 34 extending upward from the rotation center 33 toward the door end. It is provided with a rod-shaped pushing arm portion 35. The tip of the pushing arm portion 35 is in contact with the upper end of the lower arm locking portion 26, and the contact piece 10 can be pushed down by the rotation of the cam 32.

An insertion hole 36 is formed in the side plate 29 and the door plate 4 of the case body 14 at a position overlapping the operating arm portion 34. In the insertion hole 36, the handle lever 38 is inserted into the case main body 14 from the grip member 9 attached to the outer surface of the side plate 29 on the door tail side of the operating arm portion 34. As shown in FIG. 6, the gripping member 9 includes a seat portion 39 fixed to the outer surface of the door plate 4 and a pulling 40 that can rotate in conjunction with the handle lever 38. When the 40 is pulled and pulled in the door tail direction, as shown in FIG. 7, the seat portion 39 fixed to the door plate 4 rotates while being tilted in the door tail direction. The handle lever 38 is projected inside the case body 14 via the rotation center of the pull handle 40, and can rotate in the door end direction in conjunction with the rotation of the pull handle 40. As shown in FIGS. 2 and 3, the insertion hole 36 has a length that allows the handle lever 38 to move back and forth in conjunction with the movement of the puller 40.

As shown in FIG. 1, when the sliding door 2 is opened by operating from both the inside and outside of the room door or the like, the insertion holes 36 are provided on both side surfaces of the case body 14 and the door plate 4. It is preferable to be. Further, in this case, it is preferable that the gripping member 9 is also provided on both side surfaces as shown in FIGS. 6 and 7.

On the other hand, when the sliding door 2 is opened only by operating the cupboard or the like from the outside, the insertion hole 36 may be provided only on one side surface side of the case body 14 and the door plate 4. Further, in this case, the gripping member 9 is also provided only on one side surface side of the door plate 4.

When a person who intends to open the sliding door 2 grasps the pull tab 40 and pulls it in the direction of the door tail, the pull handle 40 rotates in the direction of the door tail, and the handle lever 38 interlocks with the movement of the pull tab 40. It rotates in the direction of the door. At this time, the handle lever 38 pushes the operating arm portion 34 toward the door end to rotate the cam 32. The cam 32 in which the operating arm 34 is pushed toward the door end is a contact piece while rotating the pushing arm 35 downward from the state shown by the alternate long and short dash line shown in FIG. 3 to the state shown by the solid line. 10 is translated downward. In the present embodiment, since the facing surface of the hitting piece 10 and the receiving piece 12 is a plane perpendicular to the floor, the downward parallel movement of the hitting piece 10 is the parallel movement of the receiving piece 12 with respect to the facing surface. .. Therefore, the cam 32 constitutes a moving mechanism for moving the contact piece 10 in parallel.

The side plate 29 is provided with a guide hole 24a along the lower arm portion 24. By inserting a guide convex portion (not shown) projecting from the lower arm portion 24 to the side plate 29 side into the guide hole 24a, the contact piece 10 can be translated straight downward.

On the other hand, the receiver 13 is fitted into the fitting space 41 provided on the side surface of the door tail of the door end side vertical frame 5, and is fixed to the door end side vertical frame 5 by screws 43 and 43 at the upper and lower ends of the mounting plate 42. Become.

The receiving piece 12 includes a magnet 44 and a base portion 45 provided on the door end side of the magnet 44, and is housed in the receiving case 46. The door tail side of the receiving case 46 is released. In this embodiment, the magnet 44 is a permanent magnet. The mounting plate 42 is formed with a protruding hole 47 through which the magnet 44 can appear and disappear, and the mounting plate 42 is attached by screws 48 and 48 so as to cover the open surface of the receiving case 46.

The magnet 44 may be wrapped with a resin in the same manner as the magnet 20. By wrapping the magnet 44 and the magnet 20 with resin, it is possible to reduce the impact received from the repeated locking / unlocking operation of the contact piece 10 and the receiving piece 12, and it is possible to suppress the damage of the magnet. Because.

The magnet 44 is housed at a central portion of the receiving case 46, and the base 45 includes an extending portion 49 extending vertically from the magnet 44. A spring shaft 50 is projected horizontally on the side surface of the door tail of the extension portion 49 of the base portion 45, and the tip of the spring shaft 50 is an inner surface of a portion where the mounting plate 42 projects to the release surface of the receiving case 46. It is in contact with. Then, the uke spring 51 is wound around the peripheral surface of the spring shaft 50.

When the base 45 moves in the door tail direction together with the magnet 44 protruding from the indentation hole 47, the uke spring 51 applies a force in the door tip direction that pushes back the base 45.

[Explanation of the function of sliding door lock 1]
FIG. 2 is a diagram showing a closed state of the sliding door 2. When the sliding door 2 is in the closed state, the magnet 20 embedded in the central portion 22 of the backing piece 10 and the magnet 44 constituting the receiving piece 12 face each other and are attracted by magnetic attraction to lock the sliding door. 1 is in the locked state. At this time, the door plate 4 is fixed to the door end side vertical frame 5.

When a person who intends to open the sliding door 2 grasps the pull tab 40 and pulls it toward the door tail, the cam 32 moves the contact piece 10 downward in parallel, so that the magnet 20 receives the magnet 20 as shown in FIG. It shifts downward from the position facing the magnet 44 constituting the piece 12. When the magnet 20 is displaced downward from the position facing the magnet 44 constituting the receiving piece 12, the magnetic attraction force attracting the contact piece 10 and the receiving piece 12 is weakened and the door plate 4 is unlocked. The door can be easily opened by being detached from the side vertical frame 5. The force to translate the hit piece 10 with respect to the facing surface on the side surface of the door tail of the receiving piece 12 is straight from the vertical frame 5 on the door end side in the direction of the door tail with the hit piece 10 and the receiving piece 12 facing each other. The force can be less than the force required to pull it apart. As a result, the door plate 4 can be easily opened when the sliding door 2 is opened, while having the magnetic attraction force required to maintain the door plate 4 in a sufficiently stable fixed state with respect to the vertical frame 5 on the door end side. It can be carried out.

As shown in FIG. 4, the opened sliding door 2 is in a state in which the door plate 4 is largely separated from the door tip side vertical frame 5. A person who has opened the sliding door 2 can then release his / her hand from the gripping member 9 to take out an object on the other side of the door frame 3 or enter the room through the door frame 3. The appearance of the sliding door 2 being opened is also shown by the alternate long and short dash line in FIG. Further, when the hand is released from the grip member 9, the puller 40 returns to the original position by a spring (not shown) provided inside the seat portion 39, so that the handle lever 38 also returns to the door tail direction. Therefore, the force that has rotated the push-down arm 35 via the actuating arm 34 is released by the handle lever 38.

As a result, the force of the pushing arm portion 35 that has pushed the contact piece 10 downward is also released. Then, the magnet frame spring 31 pushes up the upper arm locking portion 25, so that the contact piece 10 moves upward and the magnet 20 automatically returns to the position facing the magnet 44 of the receiving piece 12.

In the present embodiment, the upper end of the upper arm locking portion 25 pushed up by the magnet frame spring 31 comes into contact with the upper inner surface of the case body 14, so that the abutting piece 10 stops moving upward, and the magnet is at that position. The 20 and the magnet 44 are configured to face each other. Even if the upper end of the upper arm locking portion 25 does not come into contact with the upper inner surface of the case body 14, the position where the pushing force of the magnet frame spring 31 disappears is the position where the magnet 20 and the magnet 44 face each other. You may be.

In the state of FIG. 4 in which the sliding door 2 is opened, the door plate 4 is separated from the door end side vertical frame 5 with a sufficient distance. Therefore, even if the person who opens the sliding door 2 releases the hand from the gripping member 9 and the magnet 20 of the contact piece 10 returns to the position facing the magnet 44 of the receiving piece 12, the door plate 4 is placed on the door end side. Sufficient magnetic attraction to attract the vertical frame 5 does not work. Therefore, the opened sliding door 2 can maintain the opened state even if the hand is released from the gripping member 9.

When closing the opened sliding door 2, when the gripping member 9 is gripped and the door plate 4 is moved toward the door end, the contact piece is at a position where the door plate 4 and the door end side vertical frame 5 are sufficiently close to each other. The magnet 20 of the 10 and the magnet 44 of the receiving piece 12 exert a sufficient magnetic attraction force to attract the door plate 4. Further, when the door plate 4 is moved toward the door end, the door plate 4 is attracted to the door end side vertical frame 5 by the magnetic attraction force and the door is closed. In the sliding door 2 with the door closed, as shown in FIG. 2, the contact piece 10 is attracted in a state of being abutted against the receiving piece 12, and the sliding door lock 1 is locked.

Further, when the sliding door 2 is used for a long period of time, distortion occurs between the door plate 4 and the door frame 3, and an obstacle such as dust is formed on the lower frame 8 between the door plate 4 and the door end side vertical frame 5. May accumulate. Then, even when the door is closed, a gap is generated between the door plate 4 and the door end side vertical frame 5.

Here, the receiving piece 12 according to the present embodiment is provided so as to be able to appear and disappear from the infestation hole 47 of the door end side vertical frame 5, and thus the door end surface and the door end side of the door plate 4 are provided by the magnetic attraction force. Immediately before the vertical frame 5 abuts, it can protrude from the door end side vertical frame 5 and be attracted to the contact piece 10.

As a result, as shown in FIG. 5, the closed door plate 4 is fixed to the door end side vertical frame 5 even if the gap generated between the door plate 4 and the door end side vertical frame 5 cannot be eliminated when the door is closed. The locked state of the sliding door lock 1 can be maintained.

When the sliding door 2 is opened from the state of FIG. 5, the receiving piece 12 protruding from the door end side vertical frame 5 is immersed in the receiving piece 13 by the force of the uke spring 51 pulling the base 45 back toward the door end. Therefore, even if the gap generated between the door plate 4 and the door end side vertical frame 5 cannot be eliminated when the door is closed, the arm or the receiving piece 12 protruding from the surface of the door end side vertical frame 5 when the door is opened Do not get caught in the body.

1 Sliding door lock 2 Sliding door 4 Door plate 5 Door tip side vertical frame 9 Gripping member 10 Reliable piece 11 Lock case 12 Receiving piece 13 Receiving 20 Magnet 25 Upper arm locking part 26 Lower arm locking part 31 Magnet frame spring 32 Cam 34 Acting arm 35 Push-down arm 38 Handle lever 40 Puller 44 Magnet 45 Base 51 Uke spring

Claims (7)

A reliance piece that can be placed inside the door end side of the door plate that makes up the sliding door,
It is provided with a receiving piece that can be arranged at a position facing the contact piece of the door end side vertical frame that receives the door plate.
When the contact piece abuts against the receiving piece, it is locked by magnetic attraction.
The abutting piece is from the locked state, Ri Do the unlocked state by moving parallel to the facing surface of the受駒,
A sliding door lock, characterized in that the receiving piece protrudes in the door tail direction by the magnetic attraction force and is attracted to the receiving piece immediately before the contact piece abuts on the receiving piece. The sliding door lock according to claim 1, wherein at least one of the contact piece and the receiving piece is formed of a permanent magnet. The sliding door lock according to claim 1, wherein the contact piece and the receiving piece are formed of a permanent magnet. The sliding door lock according to any one of claims 1 to 3, wherein the contact piece is provided with a return mechanism that automatically returns to a position facing the receiving piece after the translation. The sliding door lock according to any one of claims 1 to 4, wherein a moving mechanism for moving the pad piece in parallel is provided. The sliding door lock according to claim 5, wherein the moving mechanism moves the contact piece in parallel in conjunction with an operation of a gripping member provided on the door plate. A sliding door characterized in that the contact piece is arranged on the door plate, the receiving piece is arranged on the door end side vertical frame, and the sliding door lock according to any one of claims 1 to 6 is provided. ..

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