KR101087289B1 - Opening and closing apparatus of sliding door - Google Patents

Abstract

PURPOSE: An opening and closing apparatus for a sliding door is provided to stably open and close a sliding door by preventing shaking when the door is slid. CONSTITUTION: An opening and closing apparatus for a sliding door comprises rail frames(10), an upper connection frame(20), sliding members(30), and a lower connection frame(40). The rail frames are installed in the top and bottom surfaces of furniture(1) and have rail grooves(11). The upper connection frame is connected to the top of a door and is slid along the rail grooves of the rail frame. The sliding members are slid along the rail grooves. The lower connection frame connects the sliding members to the bottom of the door.

Description

Opening and closing apparatus of sliding doors

The present invention relates to an opening and closing device of a sliding door, and more particularly, the rail groove is formed on the upper and lower surfaces of the furniture, so that the door of the furniture can be slid open and spaced forward to facilitate opening and closing of the door. The present invention relates to an opening / closing device of a sliding door to secure a storage space as much as possible.

In general, doors are installed on the front of furniture such as cabinets, bookcases, storage cabinets, and bathroom cabinets so as to cover the entire storage space in order to prevent aesthetic deterioration and loss of articles due to exposure of the stored items.

Doors installed in such furniture are usually divided into a sliding type and a sliding type according to the opening and closing method. First, the opening and closing type hinge is hinged or the hinge is mounted, the door is opened and closed at a constant rotation radius from the front of the furniture to the front of the furniture starting from the hinge or hinge fixed part. Say

Accordingly, the case of the opening and closing type had the disadvantage of securing a constant radius of rotation that can be opened and closed by the width of the door.

On the other hand, the sliding type is provided with a frame formed with a rail on the front of the storage space of the furniture, each door is mounted on the rail of the frame is a way that the door is opened and closed by sliding along the rail.

However, since the sliding doors require the same number of rails as the number of doors, the width occupied by the frame increases by the number of rails, thereby reducing the storage space of the furniture.

Accordingly, the Korean Utility Model Utility Model 20-0448166 consists of a housing body 100, a door 200, a C-shaped channel 300 and a slider device 400. When the door is opened, the door is slid spaced apart in the vertical direction. When closed, a sliding bathroom cabinet was provided to return it to its original position.

More specifically, as shown in FIG. 11, the slider device 400 of the slide-type bathroom cabinet includes left and right transport rollers 410 and left and right transport rollers 410 for transporting the inside of the C-shaped channel 300 to the left and right. The guide roller is mounted on the sliding shaft 420, the guide shaft 430 is coupled to the sliding shaft in the vertical direction along the body, and guides the vertical movement of the sliding door. 440.

Slider device having the configuration as described above has the advantage that the space occupied by the frame is reduced as it is mounted on the bottom of the housing body, but the storage space is wider, but because the contact area between the sliding shaft and the guider to be transported along this friction resistance This is caused largely. In addition, the interference between the guider and the sliding shaft has a problem that the sliding of the door is not made smoothly.

In addition, since one side of the guider is open, the coupling force with the sliding shaft is dropped, and thus a shake may occur when sliding, thereby preventing smooth sliding of the door.

The present invention is to solve the above problems,

After the door is spaced forward, the sliding opening is made easy opening and closing of the door, it is an object of the present invention to provide an opening and closing device of the sliding door to be opened and closed stably by preventing shaking during the sliding of the door.

Another object of the present invention is to reduce the frictional resistance of the sliding member.

Still another object of the present invention is to reduce frictional resistance by smoothing the surfaces of the guide and the moving tool.

Still another object of the present invention is to smoothly return the door.

Another object of the present invention is to minimize the impact of opening and closing the door.

Another object of the present invention is to allow the door to be mounted in place.

The present invention to achieve the above object,

In the opening and closing device for opening and closing the sliding door is installed on the front of the furniture having a storage space,

A rail frame mounted on upper and lower surfaces of the furniture;

An upper connection frame which is connected to an upper side of the door and slides along both sides of the bent rail groove formed on the upper rail frame;

A sliding member which is slid while moving along the rail groove in which both sides formed in the rail frame on the bottom are spaced apart from the front door;

It includes a lower connection frame for connecting the lower side of the door and the sliding member,

The sliding member is mounted to the guide groove formed in the rail frame of the bottom guide sphere which is moved in the horizontal direction by a horizontal moving roller;

Wrapping the circumference of the guide sphere is provided to be slidable forward, backward on the guide sphere, the upper portion of the movable opening and closing device of the sliding door comprising a movable tool including a vertical movement roller which is moved along the rail groove To provide.

In addition, the first contact portion in contact with the movable tool and the guide tool is characterized in that the inner surface is formed in an uneven shape.

In addition, the second contact portion in contact with the movable tool and the guide tool is characterized in that the movable tool is supported by a support protrusion formed to protrude from the inside of the movable tool is spaced a predetermined distance from the guide tool.

In addition, a coating layer is formed on the surface of the guide tool, and the material of the movable tool is made of acetal resin.

In addition, the guide member and the moving tool is characterized in that the elastic member is further mounted so that the moving tool can be elastically returned when the door is spaced forward and returned.

In addition, it characterized in that it further comprises a cushioning means mounted to the sliding member or the rail frame in order to mitigate the impact when opening and closing the door.

In addition, the door further comprises a leveler that can be adjusted so that the door can be mounted in place, the leveler includes a fastening block formed with a fastening hole for bolting the door and the upper connection frame or lower connection frame;

Shanghai copper block for moving the fastening block up and down by the rotation of the vertical adjustment bolt is placed inside the fastening block;

Opening and closing device of a sliding door, characterized in that the shangdong block is placed inside the housing to move the shanghai block to the left, right by a left and right adjustment bolt.

As described above, the opening and closing device of the sliding door according to the present invention is opened so that the door is spaced forward by sliding, but prevents the shaking of the sliding member during the sliding of the door through the movable port is wrapped around the guide sphere. It can be opened and closed stably, and the rail groove for sliding the door is formed on the upper and lower surfaces of the furniture to prevent the rails from hurting the aesthetics, and the rail can not occupy the storage space of the furniture. It has the effect of securing as much as possible.

In addition, by minimizing the contact area between the movable tool and the guide by the formation of the cutting groove and the support protrusion, the frictional resistance during sliding of the movable tool on the guide can be further reduced, thereby enabling a more smooth sliding.

In addition, the guide sphere and the moving sphere is made of a smooth material, the friction coefficient is reduced as the friction coefficient is small, thereby having a more smooth sliding effect.

In addition, as the elastic member is mounted between the movable tool and the guide mechanism, the door may be elastically supported by the elastic member when the door is opened, and when the door is closed, the door is returned more quickly and quickly by the restoring force of the elastic member. Has the effect that it can be closed.

In addition, the shock absorbing effect of the door opening and closing the door is further minimized by the cushioning means to provide a shock absorbing action when the door is suddenly closed, as well as to prevent damage to the door due to the opening and closing, as well as the impact noise generated during opening and closing. Has

In addition, as the leveler is included in the door, the position of the fastening hole can be easily adjusted so that the door is in the correct position when the door is bolted to the upper connection frame or the lower connection frame, thereby simplifying the construction work. Has an effect.

1 is an exploded perspective view showing the opening and closing device of the sliding door according to the first embodiment of the present invention.
Figure 2 is a bottom perspective view showing an enlarged main portion of the opening and closing device of Figure 1;
Figure 3 is an enlarged perspective view of the sliding member of the opening and closing device of Figure 1;
Figure 4 is a side cross-sectional view showing a coupling state of FIG.
5 is a cross-sectional view of the sliding member of FIG. 3.
Figure 6 is a bottom view showing the operating state of the opening and closing device of the sliding door according to the first embodiment of the present invention.
Figure 7 is a perspective view showing a sliding member in the opening and closing device of the sliding door according to the second embodiment of the present invention.
Figure 8 is a perspective view showing a sliding member in the opening and closing device of the sliding door according to the third embodiment of the present invention.
Figure 9 is an enlarged perspective view of the leveler in the opening and closing device of the sliding door of the present invention.
10 is a sectional view of the leveler of FIG.
11 is an exploded perspective view showing a conventional opening and closing device of a sliding door.

Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited to the embodiments shown in the drawings.

1 is an exploded perspective view showing the opening and closing device of the sliding door according to the first embodiment of the present invention, Figure 2 is an enlarged bottom perspective view showing the main portion of the opening and closing device of Figure 1, Figure 3 is an opening and closing device of Figure 1 Figure 4 is an enlarged perspective view of the sliding member, Figure 4 is a side cross-sectional view showing a coupling state of FIG.

As shown in the present invention, the present invention relates to an opening and closing device for opening and closing a sliding door that is installed in the front of the furniture having a storage space, the door 200 is easily opened and closed by sliding while the door 200 is spaced forward. However, to prevent the shaking during the sliding of the door 200 to enable stable opening and closing, the rail frame 10, the upper connection frame 20, the sliding member 30 and the lower connection frame 40 to include Can be.

The opening and closing device of the sliding door according to the present invention will be described in more detail for each configuration.

First, the rail frame 10 is mounted on the upper and lower surfaces of the furniture 1, respectively, the rail groove 11 is formed.

Here, the rail groove 11 guides the sliding path when the door 200 is opened and closed, and both sides thereof are bent backward so that the center side protrudes forward than both sides. In addition, the door 200 may be mounted to the rail groove 11 through the upper connection frame 20 and the lower connection frame 40 to slide along the rail groove 11.

The upper connection frame 20 is connected to the upper side of the door 200, both sides formed in the rail frame 10 of the upper surface is to slide along the bent rail groove 11, the upper connection frame 20 It consists of a horizontal plate 21 coupled to the upper surface of the furniture and a vertical plate 22 extending in the vertical direction from the horizontal plate 21. In addition, the bottom surface of the upper connection frame 20, more specifically, the bottom surface of the horizontal plate 21 is provided with a vertical movement roller 23 sliding along the rail groove 11, the vertical movement roller when opening and closing the door 200 23 is to slide the left and right along the rail groove 11 to open and close the door 200 connected to the upper connection frame 20. In this case, the rail groove 11 may be spaced forward while the door 200 is slid, since the center side protrudes forward from both sides.

In addition, the vertical movement roller 23 is rotatably mounted on the upper connecting frame 20 so that the roller surface is perpendicular to the rail frame 10 is rotated along the rail groove (11).

In addition, the rail groove 11 may be provided as many as the number of sliding members 30 to be described later connected to one door.

The sliding member 30 is to open and close the door 200 while smoothly spaced forward, and moves along the rail groove 11 bent both sides formed on the rail frame 10 of the bottom surface to move the door 200. It is sliding while spaced forward. Here, the rail groove 11 formed in the rail frame 10 on the bottom has the same shape as the rail groove 11 formed in the rail frame 10 on the upper surface.

The sliding member 30 as described above includes a guide tool 31 and a moving tool 33, which will be described in more detail with reference to FIGS. 2 to 4.

The guide tool 31 is mounted in the guide groove 12 formed in the rail frame 10 of the bottom surface is moved in the horizontal direction by the horizontal movement roller (32).

Wherein the guide groove 12 is for guiding the path of the guide sphere 31 is moved only in the horizontal direction, as shown in the drawing the guide groove 12 is C-shaped in the rail frame 10 of the bottom surface It can be formed in the form of a channel, such a guide groove 12 is provided with a plurality of horizontal movement rollers 32 which are provided at the front and rear of the guide tool 31, respectively, to rotate freely, the guide tool 31 is guided It moves along the groove 12 to the left, right, that is, in the horizontal direction without separation.

In this case, the at least one horizontal moving roller 32 may be more effectively prevented from being detached from the guide tool 31 by having the locking groove 32a formed on the surface thereof so as to be caught by the protruding jaw to be formed in the guide groove 12. Here, the roller surface of the horizontal moving roller 32 is perpendicular to the roller surface of the vertical moving roller 34 described above.

The movable tool 33 is wrapped around the guide sphere 31 and provided to be slidable forward and backward on the guide sphere 31, and is moved along the rail groove 11 at the upper portion of the movable hole 33. It includes a vertical movement roller (34).

Since the movable tool 33 is formed in a shape corresponding to the circumference of the guide tool 31 and is coupled to surround the guide tool 31, the guide tool 31 and the movable tool are stably formed. Accordingly, more stable door opening and closing is possible without shaking when the door is spaced apart by the sliding of the moving port 33.

In addition, the vertical movement roller 34 formed in the movable opening 33 is mounted in the vertical direction with the horizontal movement roller 32, the rail groove 11 formed on the bottom surface of the lower connection frame 40 Move along.

The vertical movement roller 34 of the moving hole 33 moves along the rail groove 11 moving forward from the rear to space the door 200 forward.

5 is a cross-sectional view of the sliding member of Figure 3, as shown in the present invention, in the opening and closing device of the sliding door described above, the first contact portion 35 is in contact with the movable tool 33 and the guide tool 31. Inner side may be formed in the concave-convex shape.

Here, the first contact portion 35 is a portion in contact with both ends of the movable tool 33 and the guide tool 31, the movable tool 33 as the inner surface of the movable tool 33 of the first contact portion 35 is formed with irregularities The contact area between the 33 and the guide tool 31 can be minimized.

Accordingly, the contact area between the movable tool and the guide tool can be reduced, thereby reducing the frictional resistance, thereby enabling the sliding of the movable tool more effectively.

In addition, the second contact portion 37 in contact with the movable tool 33 and the guide tool 31 is provided with the movable tool 33 spaced apart from the guide tool 31 by a predetermined distance to protrude from the inside of the movable tool 33. It may be to be supported by the support protrusion 38 formed.

Here, the second contact portion 37 is an upper surface and a lower surface where the movable tool 33 and the guide tool 31 come into contact with each other, and as the support protrusion 38 is formed, the second contact portion 37 contacts each other except the support protrusion 38. Since there is no portion, the contact area between the movable tool 33 and the guide tool 31 can be further minimized.

The minimization of the contact area is such that the sliding resistance of the movable tool 33 on the guide tool 31 can be further minimized, thereby smoothly sliding the movable tool. Therefore, when the door is opened and closed, the door may be spaced more smoothly forward.

The lower connection frame 40 is to connect the lower side of the door 200 and the sliding member, more specifically, the lower connection frame 40 is a horizontal plate 41 coupled to the bottom of the furniture, and the horizontal plate The upper surface of the horizontal plate 41 of the lower connecting frame 40 and the movable hole 33 of the sliding member 30 are bolted to each other by a vertical plate 42 extending from the 41 in the vertical direction. The direct plate 42 and the lower side of the door 200 are coupled through bolting.

As the lower connection frame 40 connects the door and the sliding member, the opening / closing device of the sliding door according to the present invention may slide while the door is spaced forward by the sliding member.

Figure 6 is a bottom view showing the operating state of the opening and closing device of the sliding door according to the first embodiment of the present invention. With reference to this, the operation state is as follows.

First, in the state in which each door 200 is closed, the front surface of the door forms the same surface. And the moving port 33 of the sliding member 30 is located at the rear side of the guide tool (31).

Then, when the user wants to open each door by applying pressure to the door 200 and sliding to one side, the guide sphere 31 is constantly slid in the horizontal direction along the guide groove 12, the moving sphere 33 ), The vertical movement roller 34 is moved from the rear to the front along the rail groove 11, which causes the movable hole 33 to move forward from the rear of the guide tool 31 so that the door 200 is also moved forward. It is open at a distance.

The doors spaced in this way are opened to overlap the front of the other door while pushing in the direction to open the door.

Therefore, the sliding door opening and closing device of the present invention is to open the door is spaced apart by the front by sliding, while opening and closing more stable by preventing the shaking of the sliding member when sliding the door through the movable port is mounted around the guide sphere. It is possible. In addition, the rail groove for sliding the door is formed on the upper and lower surfaces of the furniture to prevent damage to the aesthetics due to the rail, and the rail may not occupy the storage space of the furniture can also ensure the maximum storage space. .

On the other hand, in the opening and closing device of the sliding door described above, a coating layer is formed on the surface of the guide tool 31, the material of the movable tool 33 may be made of acetal resin.

The coating layer may be formed by a clear coating, the surface of the guide sphere 31 can be smoothly formed by applying a transparent liquid coating on the surface of the guide sphere 31, through which the mobile sphere 33 The frictional resistance can be reduced when sliding. At this time, the clear coating method is conventionally used, and a detailed description thereof will be omitted.

At this time, the guide 31 is made of aluminum, the anodizing (anodizing) coating to prevent oxidation on the surface may be preferably used, but is not limited thereto.

In addition, the acetal resin is a polymer of formaldehyde or trioxane having an acetal bond in the main chain, and has excellent electrical conductivity, abrasion resistance, heat resistance, and the like, and has a small coefficient of friction. Therefore, when used as a material of the movable tool according to the present invention, the friction between the movable tool and the guide tool is less, the sliding can be made more smoothly.

That is, the guide sphere and the movable sphere made of the above materials are smoothly formed on the surface, and the frictional resistance during sliding decreases as the coefficient of friction is small, thereby allowing smoother sliding.

7 is a perspective view showing a sliding member in the opening and closing device of the sliding door according to the second embodiment of the present invention.

As shown in the present invention, in the opening / closing device of the sliding door described above, the movable tool (when the door 200 is spaced apart and returned to the front between the guide tool 31 and the movable tool 33) An elastic member 50 may be further mounted to allow 33 to be elastically returned.

Here, the elastic member 50 may be a conventional spring or the like, and the mounting protrusion 31a to which the elastic member 50 may be mounted on the rear side of the guide tool 31 and the front side of the movable tool 33, respectively. 33a is formed to allow both ends of the elastic member 50 to be mounted to each of the mounting protrusions 31a and 33a formed in the guide tool 31 and the movable tool 33.

As such, the opening and closing device of the sliding door equipped with the elastic member may be elastically closed when the door is closed. That is, when the door is spaced apart from the front by sliding to open the door, the moving tool combined with the guide tool is spaced forward, and the elastic member connecting the guide tool and the moving tool elastically supports the sliding member.

In addition, when the spaced door is closed, the movable tool that was supported by the elastic force at the time of spaced apart can be smoothly closed because the door returns more quickly by the restoring force.

One such elastic member may be provided on one side of the moving tool and the guide tool as shown, but if necessary, two or more elastic members may be provided to make the door heavy or easier to open and close the door. .

8 is a perspective view showing a sliding member in the opening and closing device of the sliding door according to the third embodiment of the present invention.

As shown in the present invention, in the above-described opening and closing device of the sliding door, the shock absorbing means mounted to the sliding member 30 or the rail frame 10 in order to alleviate the impact when opening and closing the door 200 ( 60) may be further included.

The shock absorbing means 60 is a shock absorbing member such as a damper, and the like, as shown in FIGS. 2 and 8, a connection portion between the guide tool 31 and the movable tool 33 forming the sliding member 30, or a door. It may be installed on the rail frame on the portion that is closed or the path that the sliding member is moved.

In this case, the shock absorbing means 60 may be used in a form in which a damper is built in a conventional case so as to have a buffering force as one end of the sliding body is contacted. In addition, it may be provided by various known methods.

The shock absorbing means 60 is mounted on the sliding member 30 to prevent the moving port 33 is suddenly moved backward through the shock absorbing action. In particular, when the sliding member 30 is provided with an elastic member, it is effectively prevented from being rapidly moved backward by the restoring force of the elastic member. Accordingly, the door is prevented from being suddenly closed, thereby minimizing the impact.

In addition, as the shock absorbing means is mounted on the rail frame, the shock generated during the opening and closing of the door is further minimized to prevent damage to the door due to the opening and closing, as well as the impact noise generated during the opening and closing.

On the other hand, the present invention in the opening and closing device of the sliding door described above as shown in Figure 1, the door 200 is further provided with a leveler 70 that can be adjusted so that the door 200 is mounted in place. It may include.

9 and 10 showing the enlarged leveler, the leveler 70 is fastened to the door 200 and the upper connection frame 20 or the lower connection frame 40 and bolts fastening (71a) And a fastening block 71 formed therein, and the fastening block 71 is placed therein, and the shankdong block 75 which moves the fastening block 71 up and down by the rotation of the up and down adjustment bolt 73 and the inside thereof; The shanghai block 75 is placed in the housing 79 for moving the shanghai block 75 to the left and right by the left and right adjusting bolts 77.

More specifically, the fastening block 71 is formed with a first fastening groove 72 and a second fastening groove 74 to which the vertical adjustment bolt 73 and the left and right adjustment bolt 77 can be fastened, respectively. In addition, the shanghai block 75 is formed with a fastening groove for fastening the up and down adjustment bolt 73 in a position corresponding to the first fastening groove (72).

At this time, the first fastening groove 72 is a screw thread is formed, the upper and lower adjustment bolt 73 is inserted into the fastening groove of the first fastening groove 72 and the shandong block 75 and rotated up and down adjusting bolt ( According to the rotation direction of the 73, the fastening block 71 is moved up and down along the thread of the up and down adjustment bolt 73 can be adjusted the position of the fastening hole (71a).

In addition, a third fastening groove 76 is formed at a position corresponding to the second fastening groove 74 in the shandong block 75, and the left and right adjusting bolts 79 are moved left and right in the housing 79. Guide grooves 78 that can be fastened are formed.

The left and right adjusting bolts 77 are inserted into the second fastening grooves 74, the third fastening grooves 76, and the guide grooves 78, so that the shank block 75 and the fastening block 71 are disposed within the housing 79. ) Is fastened so as to be simultaneously moved by the left and right adjusting bolts 77. The fastening block 71 and the shandong block 75 are moved left and right together by moving the position of the left and right adjusting bolts 77 fastened to the left and right within the range of the guide groove 78, and fastening through them. The position of the ball 71a can be moved left and right.

The housing 79 including the fastening block and the shandong block as described above is mounted to the door through bolting or the like, and the fastening hole 71a connected to the upper connection frame 20 or the lower connection frame 40. By adjusting the position of the door can be mounted without twisting the upper connecting frame or the lower connecting frame, and thus the position of the fastening hole can be easily adjusted to simplify the construction work.

1: furniture 200: door
10: rail frame 11: rail groove
12: guide groove 20: upper connecting frame
21, 41: horizontal plates 22, 42: vertical plates
30: sliding member 31: guide mechanism
31a, 33a: mounting protrusion 32: horizontal movement roller
32a locking groove 33: moving hole
23, 34: vertical movement roller 35: the first contact portion
37: second contact portion 38: support protrusion
40: lower connecting frame 50: elastic member
60: buffer means 70: leveler
71: fastening block 71a: fastening hole
72: first fastening groove 73: vertical adjustment bolt
74: 2nd conclusion home 75: Shanghai East Block
76: third tightening groove 77: left and right adjusting bolt
78: guide groove 79: housing

Claims (7)

delete In the opening and closing device for opening and closing the sliding door is installed on the front of the furniture having a storage space,
A rail frame 10 mounted on upper and lower surfaces of the furniture;
An upper connection frame 20 which is connected to an upper side of the door and slides along a bent rail groove formed at both sides of the upper rail frame;
A sliding member 30 which is slid while both sides of the bottom formed in the rail frame are moved along the bent rail groove and the door is spaced forward;
It includes a lower connection frame 40 for connecting the lower side of the door and the sliding member,
The sliding member 30 is mounted to the guide groove formed in the rail frame of the bottom guide hole 31 is moved in the horizontal direction by the horizontal movement roller 32;
Wrap around the circumference of the guide sphere 31 is provided to be slidable forward and backward on the guide sphere, the upper portion of the movable tool comprises a movable tool 33 including a vertical movement roller 34 is moved along the rail groove ,
The opening and closing device of the sliding door, characterized in that the inner surface is formed in the concave-convex shape on the first contact portion 35 in contact with the movable tool 33 and the guide tool 31. The method according to claim 2,
The second contact portion 37 in contact with the movable tool 33 and the guide tool 31 is provided with the movable tool 33 spaced apart from the guide tool 31 by a predetermined distance so as to protrude from the inside of the movable tool 33. Opening and closing device of the sliding door characterized in that supported by the projection (38). The method according to claim 2 or 3,
The coating layer is formed on the surface of the guide tool 31, the opening and closing device of the sliding door, characterized in that the material of the moving tool made of acetal resin. The method according to claim 2 or 3,
A sliding door further comprises an elastic member 50 between the guide tool 31 and the movable tool 33 to allow the movable tool to elastically return when the door is spaced forward and returned. Switchgear. The method according to claim 5,
Opening and closing device of the sliding door further comprises a shock absorbing means (60) mounted to the sliding member or the rail frame in order to alleviate the impact of opening and closing the door (200). The method according to claim 2,
The door 200 further includes a leveler 70 that can be adjusted so that the door 200 can be mounted in a proper position, and the leveler 70 is connected to the door 200 and the upper connection frame 20 or the lower part. A fastening block 71 having a fastening hole 71 a for fastening the frame 40 to the bolt;
A shanghai block 75 for moving the fastening block 71 up and down by rotating the up and down adjustment bolt 73 by placing the fastening block 71 therein;
The shanghai block 75 is placed inside the opening and closing device of the sliding door, characterized in that consisting of a housing (79) for moving the shanghai block 75 to the left and right by the left and right adjustment bolt (77).

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