JPH10131589A - Restraint device for folding door, etc. - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the formation of a section projected to the inside from a floor board surface, etc., in a restraint as a stopper receiving a folding door, etc., at a closed place. SOLUTION: The restraint is composed of an engaging device 12 installed at the lower end section of a door body 4 and a tool to be engaged 13 mounted on the lower side of an open-close object opening section 2. The engaging device 12 has a vertically projectile-retractable movable engaging body 15, a means 16 holding the engaging body 15 at the place of retraction, and a driving means 17 projecting and moving the engaging body 15 when the engaging body 15 is faced oppositely to the tool to be engaged 13. The tool to be engaged 13 has an indented stepped section 23, by which the fitting-in of the front end of the projecting engaging body 15, crossing over a closed place of the door body 4 and movement to the inside are prevented but the engaging body 15 is pushed out in the retracting direction when the door body 4 is shifted to the outside, and an operating section 24 operating the driving means 17 in front of the indented stepped section 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door body, such as a hinged door or a hinged door, which is hinged to be openable and closable, and which moves in and out of the opening to be opened and closed. The present invention relates to a stop device for positioning at a position.

[0002]

2. Description of the Related Art As means for stopping the door body at the closed position, that is, for preventing the door body from moving beyond the closed position to the inside of the opening, a part of the periphery of the door body is used. In general, a projecting edge or a projection that comes in contact with the projection is provided inside the opening to be opened and closed.

[0003]

As described above, the method of projecting the overhanging edge and the projection abutting a part of the periphery of the door body inside the opening to be opened and closed is to narrow the opening to be opened and closed. There are drawbacks that can interfere with getting in and out of articles, especially in the case of walk-in type storage,
It is not possible to project such a projection on the floor surface.

In the case of a folding door in which two door bodies are foldably connected by hinges, the positions of both ends of the folding door are hinged to the side frame of the opening to be opened / closed and a roller unit engaged with a guide rail. Since it is decided, it seems that it is not particularly necessary to determine the position of the folding door intermediate bending part in the closed state where the folding door is deployed, but people fall from the outside to the middle folding part of the folding door in the closed state. Or when the hand is touched, the middle bent portion of the folding door is bent inward, and the appearance is unstable and not only unfavorable, but also the hinges connecting the both door bodies are forcibly broken and broken. There is fear.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a folding door or the like which can solve the above-mentioned conventional problems. Opening / closing target opening 2
A locking device 12 attached to a vertical end of the door body 4 moving inward and outward, and the locking device 12 when the door body 4 is closed below or above the opening 2 to be opened and closed.
And a locking device 13 attached at a position facing the locking device 13.
And means 16 for holding the locking body 15 in the retracted position;
When the locking body 15 is opposed to the locked member 13, there is provided a driving unit 17 that protrudes and moves the locking body 15 against the holding unit 16, and the locked unit 13 protrudes. The front end of the locking body 15 is fitted to prevent the door body 4 from moving inward beyond the closed position, but when the door body 4 moves outside, the locking body 15 is pushed out in the retreating direction. The recessed step 23 and the driving means 1 in front of the recessed step 23
And an operation unit 24 for operating the control unit 7.

When the above-described device of the present invention is implemented, the driving means 17 of the locking device 12 is constituted by a magnet 22 buried at the tip of a locking body 15, and an operating portion 24 of the locked member 13 is provided. And the recessed step 23 can be constituted by a magnetic plate to which the magnet 22 is attracted.

When the locking device 12 is mounted on the lower end of the door body 4 and the locked member 13 is mounted below the opening 2 to be opened and closed, the holding means 16 of the locking device 12 is provided. Can be constituted by a spring 21 having a slightly stronger lifting force than balancing the entire weight of the locking body 15 including the magnet 22. Conversely, when the locking device 12 is mounted on the upper end side of the door body 4 and the locked member 13 is mounted above the opening 2 to be opened and closed, the holding device 12 is held. Means 16
Can be constituted by a spring 31 having a pushing force slightly smaller than the total weight of the locking body 15 including the magnet 22.

As is known for folding doors, if the door main body 4 is capable of laterally laterally moving along the opening / closing target opening 2 in the closed position, the lateral movement in the closed position is performed. To allow, the recessed step 2 of the locked member 13
The left and right sides of the door 3 can be formed on the slope 23c so that the locking body 15 fitted into the recessed step 23 is pushed out as the door main body 4 moves laterally.

When it is not necessary to form the upper and lower side surfaces of the opening / closing target opening 2 in which the locked member is provided in a continuous horizontal plane over the inside and outside of the opening 2, the driving means 40 of the locking device 36 To the locking body 39 of the locking device 36.
, An operating body 41 which is arranged side by side in the left and right direction and is movable up and down, a biasing means (spring 42) for holding the operating body 41 at a protruding position, and upside down in conjunction with the operating body 41. The lifting member 43 of the locking device 36 is engaged with the lifting member 43 so as to be relatively movable within a certain range, and is interposed between the lifting member 43 and the lifting member 43. When the operating body 41 is in the protruding position, it is held in the retreating position by the spring 44 that has been set, and the opening / closing target opening 2 provided with the locked member 37 has the A protruding corner step 48 is formed outside the recessed step 38 of the locked tool 37, and the operation section 49 of the locked tool 37 is moved from the protruding corner step 48 of the opening / closing target opening 2 to The protruding position is provided over the lateral side position of the recessed step portion 38 of the locked member 37. Can be configured to cause retracts by operation unit 49a certain said operating body 41 in the outer corner step portion 48.

Further, in this case, the operating body 41 and the lifting / lowering body 43 of the driving means 40 of the locking device 36 are combined with the rack gears 45, 46 provided on both of them and the pinion gear 47 which simultaneously meshes with the two rack gears 45, 46. And can be linked to each other.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, reference numeral 1 denotes a folding door which opens and closes an opening 2 to be opened and closed. , 4 are foldably connected by hinges 5,
One end (outer end of the door body 3) is hinged to the side frame 7 of the opening 2 by a hinge 6, and the other end (outer end of the door body 4) is
The roller unit 9 which engages with the guide rail 8 laid along the opening 2 and inside the opening 2 is a hinge 1
Pivoted by zero. As is well known in various conventional folding door devices, the guide rail 8 is provided with the opening 2.
Lower floor plate surface or upper top plate surface or both (see FIG. 1).
5), or below the front edge of the intermediate shelf.

Reference numeral 11 denotes a stopping device of the present invention, which comprises a locking device 12 and a locked member 13. The locking device 12 is attached to the inside of the lower end portion of the door main body 4 (or the door main body 3) at a position adjacent to the intermediate bent portion of the folding door 1 so as to be embedded as shown in FIGS. Locking device 13
When the folding door 1 is unfolded as shown by the solid line in FIG. 1 and the opening 2 is closed, the opening is opposed to directly below the locking device 12 as shown in FIG. 2B. 2 is mounted on the lower floor plate surface 14 in an embedded manner.

As shown in FIGS. 2, 3, and 5, the locking device 12 includes a locking body 15, a holding means 16, and a driving means 17. The locking body 15 is a door body 4
The lower end locking portion 15a projects downward from the lower end surface of the door body 4 (see FIG. 2B) and the lower end locking portion 15a is inserted into a casing 19 embedded in the casing 19 and fixed by the wood screw 18. It is provided so as to be able to ascend and descend between a retracted position (see FIG. 2A) retracted inward from the lower end surface thereof and has a recessed groove 15b on the back side. Lower end locking portion 15a of locking body 15
Has a saw blade shape in vertical section, and the vertical surface portion is the door body 4
Are configured to face in the closing direction.

The holding means 16 projects from the back plate 19a of the casing 19 and is provided with a recessed groove 15 of the locking body 15.
The compression coil spring 21 is interposed between the projecting piece 20 that fits loosely into the groove b and the upper end of the recessed groove 15b and urges the locking body 15 upward. The driving means 17 comprises a magnet 22 embedded in the lower end locking portion 15a of the locking body 15 flush with the lower end slope. The spring 21 of the holding means 16 has a slightly higher pushing force than that which balances the entire weight of the locking body 15 including the magnet 22.
Will be held in the retracted position as shown in FIG. 2A.

As shown in FIG. 2B, the locked member 13 includes a recessed step portion 23 into which the lower end locking portion 15a of the locking body 15 is fitted.
A flat plate-shaped operation unit 24 overlapping the floor plate surface 14 in front of it
As shown in FIG. 4, the whole is formed of a magnetic plate on which the magnet 22 is attracted, and the recessed step 23 is fitted into the recess 25 formed in the floor plate surface 14 as shown in FIG.
6 is fixed to the floor plate surface 14. The recessed step 2
3 is formed in a cross-sectional shape substantially matching the cross-sectional shape of the lower end locking portion 15a of the locking body 15, and the lower end locking portion 1 of the locking body 15 is formed.
5a, the lower end locking portion 15a
The vertical portion 23a facing the vertical surface portion prevents the door body 4 from moving inward beyond the closed position, and the door body 4
Is moved outward, the lower end locking portion 15a is pushed up by the slope portion 23b.

According to the restraining device 11 configured as described above, the free end (the end to which the roller unit 9 is connected) of the door body 4 of the folding door 1 in the folding open state shown by the phantom line in FIG. 1) in the closing direction along the guide rail 8, the folding door 1 is in the deployed and closed position to close the opening / closing target opening 2 as shown by the solid line in FIG. In this final stage, as shown in FIG. 2A, the locking device 12 attached to the door body 4 of the folding door 1
When the lower end locking portion 15a of the locking body 15 of the locking device 12 faces the operating portion 24 of the locked device 13, the magnetic plate is used. Attraction force acts between the operating portion 24 of the locked member 13 and the magnet 22 embedded in the lower end locking portion 15a, and the locking member 15 is attached to the spring 21 by the attraction force. The door body 4 moves toward the inside of the opening 2 in a state in which the door body 4 descends against the force and the tip of the lower end locking portion 15a and the operation portion 24 are in contact with each other.

When the folding door 1 is in the deployed closed position and the door main body 4 has reached the closed position, FIGS.
As shown in (2), the lower end locking portion 15a of the locking body 15 is drawn into the recessed step portion 23 of the locked member 13 by the suction force, and both are fitted. In such a state, the door body 4 further enters the inside of the opening 2 beyond the closed position by the vertical surface portion at the lower end locking portion 15a of the locking body 15 and the vertical portion 23a of the concave step portion 23. Completely blocked.

When the folding door 1 in the unfolded and closed position shown by the solid line in FIG. 1 is set to the folding open position shown by the imaginary line, the two door bodies 3 and 4 of the folding door 1 are adjacent to or close to the bent connecting portion. 2B. At this time, as shown in FIG. 2B, the locking member 15 of the locking device 12 fitted in the recessed step 23 of the locked member 13 is operated.
Are the lower end inclined surface of the lower end locking portion 15a and the recessed step portion 23.
Is pushed up by the sliding contact with the slope 23b, and moves out of the recessed step 23 onto the operation unit 24 as the door body 4 moves outward. And the lower end locking portion 1 of the locking body 15
When the member 5a moves outward from the operation part 24 of the locked member 13, the locking body 15 rises by the urging force of the spring 21, and retreats into the casing 19 as shown in FIG. 2A.

As shown in FIG. 6, the stopping device 11 can be arranged at the upper end of the door body 4 (or the door body 3). In this case, the locked member 13 is attached to the top plate surface 30 that covers directly above the door body 4 to which the locking device 12 is attached when the folding door 1 is in the deployed closed position shown by the solid line in FIG. . The holding means 16 of the locking device 12 is constituted by a spring 31 having a pushing force slightly smaller than the total weight of the locking body 15 including the magnet 22.

Therefore, when the upper end locking portion 15a of the locking member 15 does not face the operating portion 24 and the recessed step portion 23 of the locked member 13, the locking member 15 is at the lower limit position. Although the upper end locking portion 15a does not protrude from the upper end of the door body 4,
When the upper end locking portion 15 a of the locking body 15 faces the operation portion 24 of the locked member 13, the operation portion 24 and the magnet 22
The locking body 15 is lifted by the suction force between the door body 4 and the door body 4 moves toward the closed position in a state where both are sucked together, and when the door body 4 reaches the closed position, the upper end of the locking body 15 is locked. The portion 15a fits into the recessed step portion 23 of the locked member 13.

The stopping device 11 is, as described above, the door main body 4.
(Or the door main body 3), it is also possible to dispose it at the upper and lower ends instead of at either upper or lower. The folding door 1 shown in FIG.
Has one end (the outer end of the door body 3) pivotally attached to the side frame 7 of the opening / closing target opening 2 by the hinge 6, and both ends of the folding door 1 (the outer ends of the door bodies 3 and 4) Also roller unit 9
The stopper device 11 of the present invention is also applicable to a folding door device which is movably supported by a guide rail, and in which the folding door 1 is configured to be able to move laterally along the opening / closing target opening 2 in the folded open position or the unfolded closed position. Is available. in this case,
When the folding door 1 in the deployed and closed position is in the normal closed position, the stopping device 11 is connected to the locking device 12 on the door body 4 (or the door body 3) side and the floor plate surface 14 (or the top plate surface 30). Is arranged so as to engage with the locked member 13, but in order to allow the folding door 1 in the unfolded and closed position to move laterally, as shown in FIG. The left and right sides of the recessed step portion 23 are fitted with the locking body 15 fitted into the recessed step portion 23.
Is formed on the slope 23c so that the lower end locking portion 15a (or the upper end locking portion 15a) is pushed out as the door body moves laterally left and right.

The specific structure of the stopping device 11, for example, the locking body 1
The holding means 16 and the driving means 17 of 5, and the operation part 24 of the locked member 13 are not limited to those of the above embodiment. Next, a braking device according to another embodiment will be described with reference to FIGS.

This stopping device comprises a locking device 36 attached to the door body 4 (or the door body 3) and a locked member 37 attached to the floor plate surface 14 (or the top plate surface 30). The locking device 36 moves the driving means 40 of the locking body 39 having the lower end locking portion 39 a fitted into the recessed step portion 38 of the locked member 37, in a horizontal direction with respect to the locking body 39. Operating body 41 which can be moved up and down freely
And a compression coil spring 42 as urging means for holding the operation body 41 at the protruding position shown in FIGS.
And an elevating body 43 that moves in the up and down direction in conjunction with the operation body 41.

The locking member 39 has an engaging portion 39a which engages with a vertically engaging groove 43a formed in the elevating member 43 so as to be relatively movable within a predetermined range. As shown in FIGS. 10 and 11, when the operating body 41 is at the projecting position, the operating body 41 is held at the retracted position by being urged in the projecting direction by a spring 44 interposed therebetween. Further, the operating body 41 and the elevating body 43 of the driving means 40 of the locking body 39 are interlockingly connected to each other by rack gears 45 and 46 provided on both of them and a pinion gear 47 which meshes with both rack gears 45 and 46 at the same time. ing. The pinion gear 47 is formed by concentrically integrating a small-diameter pinion gear portion 47a that meshes with the rack gear 45 of the operation body 41 and a large-diameter pinion gear portion 47b that meshes with the rack gear 46 of the elevating body 43.

The opening / closing target opening 2 provided with the locked member 37 has a protruding corner portion 48 outside the recessed step portion 38, and the operation portion 49 of the locked member 37 has the From the protruding corner step 48 of the opening / closing target opening 2 to the recessed step 3 of the locked member 37
8, and is configured to retreat the operating body 41 at the projecting position from the protruding corner-shaped operation portion 49 a covering the protruding corner step portion 48. In addition,
At the lower end of the operating body 41, an operating portion 49 of the locked member 37 is provided.
Is formed on the operation section 49 from the corner-shaped operation section 49a.

According to the braking device having the above-described structure, the operating body 41 is located at the projecting position projecting downward from the lower end of the door body 4 as shown in FIGS.
When the folding door 1 is in the deployed and closed position shown in FIG. 1 in a state where the locking body 39 is in the retreat position where it does not protrude from the lower end of the door body 4 as shown in FIG. Immediately before entering, as shown in FIG. 11, the lower end slope 41 a of the operating body 41 comes into contact with the protruding corner-shaped operating portion 49 a of the operating portion 49 of the locked member 37, and with the subsequent movement of the door body 4. The lower end slope 41 a of the operating body 41 is
9 and the operating body 41 rises against the urging force of the spring 42.

As the operation body 41 is raised, the rack gear 4
5, the lifting / lowering body 43 moves down via the pinion gear 47 and the rack gear 46, and the locking body 39 is pushed down via the spring 44 with the downward movement of the lifting / lowering body 43, but the locking body 39 is still covered. Since the locking member 37 has not reached the position facing the recessed step 38, the lower end locking portion 39a of the locking body 39 abuts on the flat surface of the locked member 37 as shown in FIG. In this state, the door body 4 moves toward the recessed step 38 as the door body 4 moves. During this time, only the spring 44 is compressed between the locking body 39 and the elevating body 43, and urges the operating body 39 downward.

The operating body 39 is a stepped portion 38 of the locked member 37.
When the operating body 39 reaches the position opposing to, the operating body 39 is lowered by the urging force of the spring 44, and the lower end locking portion 39a is fitted into the recessed step portion 38 as shown in FIGS.
The lower end of the operating body 41 remains pressed against the operating portion 49 of the locked member 37 by the urging force of the spring 42. As described above, the lower end locking portion 39a of the locking body 39 is fitted to the recessed step portion 38 of the locked member 37, and thus, as in the case of the restraining device 11 described above, the folding door in the deployed and closed position. The first door body 4 prevents the door body 4 from moving to the inside of the opening / closing target opening 2 beyond the closed position.

When the folding door 1 is switched from the deployed and closed position to the folded and open position to open the opening / closing target opening 2, the recessed step 38 of the locked member 37 is moved as the door body 4 moves outward. The lower end locking portion 39 a of the locking body 39 fitted into the recess is pushed up against the urging force of the spring 44 by the slope of the recessed step portion 38. Then, when the door body 4 moves to a position where the lower end of the operating body 41 is displaced outward from the operating portion 49 of the locked member 37, the operating body 41 is lowered by the urging force of the spring 42 to the original projecting position. The lifting / lowering body 43 moves up and down via the rack gear 45, the pinion gear 47, and the rack gear 46 in conjunction therewith, and the lower end of the engaging groove 43a moves the locking body 39 back to its original position via the engaging portion 39a of the locking body 39. It will be raised to the entry position.

The stopping device shown in FIGS. 8 to 14 can be disposed at the upper end side of the door body, similarly to the stopping device 11 shown in FIG. It can be arranged in each. Further, as shown in FIG. 15, the stopping device 1 is provided on the floor plate surface 14 side where there is no protrusion.
1 or the stopping device 35 shown in FIG. 8 to FIG. 14 described above, and on the top plate surface 30 side, the protrusion-shaped stopper 50 attached to the top plate surface 30 and the door body 4 (or the door body 3) ) May be provided with a conventional stopping device 52 comprising an abutment member 51 attached to the inside of the upper end. Furthermore, it goes without saying that the stopping device of the present invention can be applied not only to a folding door but also to a hinged door consisting of a single door body whose base is hinged.

[0031]

As described above, according to the folding device such as a folding door of the present invention, when the door body moving inward and outward with respect to the opening to be opened and closed is closed to the closed position, the locking of the door body side is performed. The drive means of the device is operated by the operation unit of the locked member attached to the lower side or the upper side of the opening / closing target opening,
The locking body of the locking device is switched from the retracted position to the protruding position, the locking body fits into the recessed step of the locked member, and the door main body moves beyond the closed position to the inside. Therefore, even if an external force is applied to press the door body inward, the door body can be reliably held at the closed position without bending inward.

Further, it is not necessary to provide a projection protruding toward the opening side of the locked object attached to the lower side or the upper side of the opening to be opened / closed, and it is sufficient to provide a recessed step. The lower side or the upper side of the opening to be opened / closed can be made substantially flat, and there is no need to provide an overhang around the opening to receive the door body. Therefore, it is possible to ensure the maximum size of the opening in which the door body is opened and closed, and in particular, such that articles to be taken in and out of projections protruding from the lower floor surface or the upper top surface of the opening are caught. There is no inconvenience, and in the case of the walk-in type storage, there is no danger that a person who gets in and out gets stuck on the above-mentioned protrusion, particularly a protrusion provided on the floor plate surface, and the appearance is improved.

According to the structure of the second aspect, the structure of the locking device is extremely simplified, and it can be implemented compactly and at low cost. According to the configuration of the third aspect, the locking device is attached to the lower end side of the door body, and the locked device is easily attached to the lower side of the opening to be opened / closed, that is, the floor plate surface side. According to the configuration of the fourth aspect, the locking device is mounted on the upper end side of the door main body, and the locked device is mounted on the upper side of the opening to be opened / closed, that is, on the top plate surface side. The configuration can be easily implemented. Of course, in this case, the locking body may be held at the retracted position by the total weight of the locking body including the magnet.

According to a fifth aspect of the present invention, the door body to which the locking device is attached is a folding door body that can move laterally in the left and right direction along the opening to be opened and closed in the closed position. However, while allowing the lateral movement of the folding door,
When the folding door is at the regular closed position, the door body can be reliably held at the closed position by the engagement between the locking body of the locking device and the recessed step of the locked member.

Further, according to the configuration of the sixth aspect, the locking body can be reliably driven without using a magnet for the driving means of the locking body. In this case, claim 7
According to the configuration described in (1), not only can the ascent / descent movement of the operating body be reliably converted into the up / down movement of the elevating body (locking body) in the opposite direction, but also, as shown in the embodiment, the small diameter pinion gear portion and the large diameter By using a two-stage pinion gear having a pinion gear portion, the lifting / lowering body (locking body) is raised / lowered by a required amount while the lifting / lowering amount of the operating body is kept to a necessary minimum, so that the expected operation is reliably performed. be able to.

[Brief description of the drawings]

FIG. 1 is a schematic plan view illustrating the entire folding door device.

FIG. 2A is a longitudinal sectional side view showing the stopping device immediately before the door main body reaches a closed position, and FIG. 2B is a longitudinal sectional side view showing the stopping device when the door main body reaches a closed position. It is.

FIG. 3 is a partially longitudinal rear view of FIG. 2B.

FIG. 4 is a plan view of a locked member.

FIG. 5 is an enlarged cross-sectional plan view of the locking device.

FIG. 6 is a longitudinal sectional side view showing the stop device in a state immediately before the door body reaches a closed position, in a case where the stop device is disposed on the upper end side of the door body, and FIG. It is a longitudinal side view which shows the stopping device when has reached the closed position.

FIG. 7 is a partially cutaway rear view of a main part illustrating a modification of the locked member.

FIG. 8 is a vertical cross-sectional side view of the stopping device according to the second embodiment at a locking body position shown in a state immediately before the door body reaches a closed position.

FIG. 9 is a plan view showing the braking device of FIG. 8;

FIG. 10 is a longitudinal sectional rear view showing the locking device of FIG. 8;

FIG. 11 is a longitudinal sectional side view at the operating body position showing the stopping device of FIG. 8 in a state immediately before the door body reaches the closed position.

FIG. 12 is a longitudinal sectional rear view showing the stopping device of FIG. 8 in a state in which the operating body is mounted on the operating portion of the locked member.

FIG. 13 is a longitudinal sectional side view at the position of the locking member, showing the locking device of FIG. 8 in a state where the locking member is fitted to the recessed step portion of the locked member.

FIG. 14 is a longitudinal sectional rear view showing the restraining device of FIG. 8 in a state in which a locking body is fitted to a recessed step portion of a locked member.

FIG. 15 is a longitudinal sectional side view for explaining an example in which the lower part of the door main body is positioned by the stopper of the present invention and the upper part of the door main body is positioned by a conventional stopper.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Folding door 2 Opening / closing object opening 3 Door main body 4 Door main body 11 Stopping device 12 Locking device 13 Locked device 14 Floor plate 15 Locking body 15a Lower end locking portion 16 Holding means 17 Drive means 21 Compression coil spring (holding) Means) 22 Magnet (drive means) 23 Recessed stepped part of locked object 24 Operating part of locked object 30 Top plate surface 31 Compression coil spring (holding means) 35 Stopper 36 Locking device 37 Locked member 38 Recessed Step 39 Locking Body 40 Driving Means 41 Operating Body 42 Compression Coil Spring (Biasing Means) 43 Elevating Body 44 Spring 45 Rack Gear 46 Rack Gear 47 Pinion Gear 47a Small Diameter Pinion Gear 47b Large Diameter Pinion Gear 48 Projection on Floor Side Corner step 49 Operation part of locked tool 49a Protruding corner-shaped operation part of locked tool

Claims (7)

[Claims] 1. A locking device attached to a vertical end of a door body moving inward and outward with respect to the opening to be opened and closed, wherein the door body is closed below or above the opening to be opened and closed. A locking device attached to a position where the locking device is opposed to the locking device, wherein the locking device includes a locking member that can move up and down and retractably; a unit that holds the locking member at a retreat position; Driving means for projecting the locking body against the holding means when the locking body faces the locked object, wherein the locking tool has a tip of the protruding locking body. A recessed step portion that fits to prevent the door body from moving inward beyond the closed position, but pushes the locking body in the retreating direction when the door body moves outward; and the recessed step portion. And a control unit for operating the driving means in front of the door. 2. A driving means of the locking device comprises a magnet buried at a tip of a locking body, and an operation portion and a recessed step portion of the locked member are formed by a magnetic plate on which the magnet is attracted. The stopping device such as the folding door according to claim 1, which is configured. 3. The locking device according to claim 1, wherein the locking device is attached to a lower end of the door body, and the locked member is attached to a lower side of an opening to be opened and closed. 3. The stopping device as claimed in claim 2, comprising a spring having a pushing force slightly stronger than that of balancing the entire weight of the locking body including the magnet. 4. The locking device according to claim 1, wherein the locking device is attached to an upper end of a door body, and the locked member is mounted above an opening to be opened and closed. 3. The stopping device according to claim 2, comprising a spring having a pushing force slightly smaller than the total weight of the locking body including the magnet. 5. The door body is capable of laterally laterally moving along the opening / closing target opening in the closed position, wherein both left and right sides of the recessed step portion of the locked member are connected to the recessed step portion. The restraining device such as a folding door according to any one of claims 1 to 4, wherein the fitted locking body is formed on an inclined surface so as to be pushed out as the door main body moves laterally left and right. 6. A driving means for said locking device, wherein said operating device is arranged in parallel in a horizontal direction with respect to a locking body of said locking device and is movable up and down and removably, and holds said operating body at a protruding position. And an elevating body that moves in the up and down direction in conjunction with the operating body, wherein the locking body of the locking device engages the elevating body so as to be relatively movable within a certain range. The opening / closing target opening provided with the locked member is urged in a protruding direction by a spring interposed between the lifting / lowering body and held at the retreat position when the operating body is at the protruding position. Has an outer corner step outside the recessed step, and the operating portion of the locked device is provided next to the recessed step of the locked device from the open corner step of the opening / closing target opening. It is provided over the side position, and the operating body at the protruding position is retracted by the operating section at the protruding corner step. Restraint devices such as folding door according to claim 1 which is a. 7. An operating body and a lifting / lowering body in a driving means of the locking device are linked to each other by a rack gear provided on both of them and a pinion gear simultaneously meshing with both rack gears. Stop devices such as folding doors.