KR102733635B1 - Sliding and swing door with automatic opening and closing system and method for automatic opening and closing the door - Google Patents

Abstract

The present invention provides a sliding door that automatically opens and closes, including a main frame including a horizontal frame arranged at the top and vertical frames on both sides, a rail frame installed below the horizontal frame and having at least one rail arranged along a short-axis direction on the inside, each rail extending along a long-axis direction, a rotary frame forming one end of the rail frame and being separated from the rail frame and rotatably coupled to the main frame, at least one sliding door piece that is slidably installed along each rail of the rail frame and moved to the rotary frame, a swing door piece that is fixedly installed to the swing frame, a driving unit that is provided in the horizontal frame and moves the sliding door piece in the long-axis direction, and a fixing member that is installed between the driving unit and the sliding door piece and selectively connects the driving unit and the sliding door piece according to the rotation of the rotary frame.

Description

Sliding and swinging door with automatic opening and closing system and method for automatic opening and closing of the door {SLIDING AND SWING DOOR WITH AUTOMATIC OPENING AND CLOSING SYSTEM AND METHOD FOR AUTOMATIC OPENING AND CLOSING THE DOOR}

The present disclosure relates to an automatic opening/closing sliding door that opens/closes automatically and a method for automatically opening/closing the sliding door.

Typically, doors that can be opened are installed in entrances and windows of a space. Doors are usually designed to open and close in a swinging or sliding manner.

In the case of a swing door, sufficient space must be secured to correspond to the radius of rotation of the door around the rotation axis. It is difficult to use in places where there is no space to rotate the door or where there are spatial restrictions. In the case of a sliding door, sufficient area must be secured on the wall surface along the path that the door moves, so it is difficult to expand the size of the doorway or window.

Accordingly, a composite door is being developed that combines the opening and closing structure of conventional doors and the sliding method. Composite doors can achieve excellent results in terms of space utilization.

Accordingly, the applicant has developed a sliding door and a hinged door combination interlocking door. For example, Korean Patent No. 10-1946873 and Korean Patent No. 10-2062223 disclose sliding door and hinged door combination composite doors developed and patented by the applicant.

The above-mentioned conventional devices have a structure in which a rail frame having a rail for sliding a door piece and a rotary frame separated from the rail frame and rotatably coupled to a main frame are provided, and a plurality of door pieces are installed so as to be able to slide between the rail frame and the rotary frame.

Accordingly, the door piece can be opened and closed in a sliding manner along the rail frame, and the door piece can be opened and closed in a swinging manner by moving the door piece to the swing frame and rotating the swing frame.

In recent years, the demand for greater convenience in life has been gradually increasing, so improving the structure of the conventional sliding/opening/closing composite door can provide more benefits to users.

The present invention provides an automatic opening/closing sliding door and an automatic opening/closing method for the sliding door.

The present invention provides a sliding door and a sliding door automatic opening/closing interlocking door and an automatic opening/closing method for the interlocking door, which enable separation and connection between the door and the driving unit to be made easier and more reliable.

The interlocking door of the present embodiment may include a main frame including a horizontal frame arranged at the top and vertical frames on both sides, a rail frame installed below the horizontal frame and having at least one rail arranged along a short-axis direction on the inside, each rail extending along a long-axis direction, a rotary frame forming one end of the rail frame and being separated from the rail frame and rotatably coupled to the main frame, at least one sliding door piece installed so as to be slidable along each rail of the rail frame and moved to the rotary frame, a swing door piece fixedly installed to the rotary frame, a driving unit provided in the horizontal frame and for moving the sliding door piece in the long-axis direction, a fixing member installed between the driving unit and the sliding door piece and selectively connecting the driving unit and the sliding door piece according to the rotation of the rotary frame.

The above driving unit may include a pair of pulleys rotatably provided at both ends of the longitudinal axis of the horizontal frame, a servo motor connected to the pulleys to rotate the pulleys in a forward and reverse direction, a driving belt installed between the pair of pulleys, and a controller that controls the servo motor by outputting a driving signal for moving and stopping the sliding door piece.

The above driving unit may further include a detection sensor installed on the horizontal frame of the above interlocking door to detect a person entering or exiting in front of the interlocking door and apply the detection signal to the controller.

The above-mentioned fixture may include a moving member installed on a driving belt of the driving unit and moved in the longitudinal direction of the horizontal frame according to the movement of the driving belt, a fitting plate formed at the lower end of the moving member and inserted through a gap between the rail frame and the sliding door piece and extending to the upper portion of the sliding door piece, and a catching member installed at the upper portion of the sliding door piece and into which the fitting plate is inserted and fixed.

The above horizontal frame may further include a guide rail formed to extend in the longitudinal direction, and a rail member formed on the above movable member and installed to be movable by being fitted into the guide rail.

The above-mentioned engaging member may include a pair of stoppers that protrude upward at a gap so that both sides of the engaging plate are engaged, and a groove provided between the stoppers into which the engaging plate is inserted.

The above-mentioned fixture may further include a slit hole formed by cutting inwardly at the tip of the insertion plate, and a projection formed by protruding upwardly in a groove portion of the above-mentioned engaging member at a position corresponding to the slit hole and inserted into the slit hole.

The above-mentioned insert plate may have a structure in which the leading edge or leading edge of the slit hole is curved or chamfered into an arc shape.

The above-mentioned catch member may be formed on each of the above-mentioned stopper front ends and may have a structure in which the facing side ends are curved or chamfered in an arc shape to provide a guide member that guides the insertion plate to the groove.

The above-mentioned linkage door may further include a connecting member installed between the rail frame and the rotation frame to selectively connect each rail of the rail frame and the rotation frame, and prevent sagging of the rotation frame to maintain the height of the rail frame and the rotation frame the same.

The above-described connecting member may include a first connecting member installed at the front end of the rail frame and connected to the rail of the rail frame, a second connecting member installed at the front end of the rotary frame and in contact with the first connecting member and connected to the rail of the rotary frame, a step formed at the first connecting member between facing front surfaces of the first connecting member and the second connecting member, and a support member protrudingly formed on the front surface of the second connecting member at a position corresponding to the step and hanging over the step, such that the support member hangs over the step to prevent sagging of the rotary frame with respect to the rail frame.

The above first connecting member may include a body having the step formed on the front side and an insertion portion having a shape corresponding to the cross-sectional shape of the end of the rail frame so as to be fitted into the end of the rail frame on the rear side, a fastening portion formed on the body and assembled to the rail frame with a bolt, and a connecting rail formed on the body and connected to the rail of the rail frame.

The second connecting member may include a body having the support member formed on the front side and an insertion member having a shape corresponding to the cross-sectional shape of the end of the rotating frame so as to be fitted to the end of the rotating frame on the rear side, a fastening member formed on the body and assembled to the rotating frame with a bolt, and a connecting rail formed on the body and connected to a rail of the rotating frame.

The facing front surface between the first connecting portion and the second connecting portion may be formed to be inclined at an angle with respect to the short axis direction of the horizontal panel, or may be formed to be curved in an arc shape.

The facing front surface between the first connecting portion and the second connecting portion can be formed into an arc shape corresponding to a radius of rotation about the center of rotation of the rotating frame.

The above step is formed with an entrance road that is inclined downwards on the entrance side where the support piece enters, thereby preventing interference with the tip of the support piece.

The above connecting member may further include an elastic fixing member that maintains the first connecting member and the second connecting member in a closed state.

The above elastic fixing member may include at least one projection formed on one of the step and the support piece that are in contact with each other, and at least one groove formed on the other one and formed at a position corresponding to the projection, into which the projection is secured.

The above elastic fixing member may further include an elastic bar that is formed elastically and movably on the step or the support piece and has a protrusion or groove formed at the tip to apply elastic force between the protrusion and the groove.

It may further include a locking member for selectively fixing the sliding door piece moved by the above rotating frame.

The above locking member may be installed in the connecting member and may have a structure that releases the fixing of the sliding door piece when the first connecting member and the second connecting member are joined, and fixes the sliding door piece when the first connecting member and the second connecting member are separated.

The above locking member may include a catch bar that is movably installed on the second connecting port and selectively protrudes inwardly from the connecting rail of the second connecting port to block movement of the sliding door piece, an elastic member that is installed between the catch bar and the second connecting port to apply elastic force to cause the catch bar to protrude toward the connecting rail, a lever formed on a side of the catch bar and protruding toward the front of the second connecting port, and a lever seat that is formed so that the lever is caught on the front of the first connecting port and moves the lever to the outside of the connecting rail of the second connecting port when connected to the second connecting port by pushing it.

It may further include a linkage installed between the above-mentioned swing door piece and a plurality of sliding door pieces to allow them to move in conjunction with each other.

The above-mentioned linkage may include pulleys installed on both sides of the lower end of one side of a sliding door piece, and a belt that is fastened and rotated between the pulleys, and the swing door pieces and sliding door pieces that are arranged on both sides of the sliding door piece on which the pulleys are installed may be each fixed to the belt via a connecting member, and may be structured to be linked together according to the rotation of the belt.

The above horizontal frame may further include a front finishing panel installed on the front to close the interior.

The lower part of the above front finishing panel may be structured to extend to the sliding door piece and cover the space between the rail frame and the sliding door piece.

The automatic opening/closing method for a linked door of the present embodiment may include a step of operating a driving unit to open the door when a door opening signal is generated, a step of detecting whether the door opening amount is greater than or equal to a reference value, a step of stopping the operation and waiting if the door opening amount is greater than or equal to the reference value, a step of detecting whether an additional opening signal is generated, a step of operating the driving unit to additionally open the door when the additional opening signal is generated and stopping the operation of the driving unit, a step of detecting whether a door closing signal is generated, a step of operating the driving unit to close the door when the door closing signal is generated, and a step of detecting whether the door closing amount is greater than or equal to a reference value and terminating the operation if it is greater than or equal to the reference value.

The method of the present embodiment may further include a step of detecting whether a human body is detected and whether a door opening signal is generated when the door is closed, and a step of operating a driving unit to open the door when a human body is detected or a door opening signal is generated.

According to this implementation example, a sliding and swing door can be implemented to open and close automatically, making it more convenient to use.

When the interlocking door rotates to open or close, the operation of the driving unit is stopped to fix the position of the fixture, thereby ensuring accurate fastening between the fixture's insertion plate and the engaging member, thereby increasing operational reliability.

Even if the door's insertion plate is slightly misaligned, it can prevent malfunction by properly inserting it into the catch member and forming a fastening.

Since the movable member of the fixture is guided by being joined to the guide rail of the horizontal frame, the movement of the movable member is minimized and the door can be slide stably.

It has a simple structure and can be easily installed and used within a horizontal frame, making it easy to maintain.

By making the overall appearance of the door neater and more sophisticated, the product's luxurious appearance can be enhanced.

Figure 1 is a schematic perspective drawing illustrating a sliding/opening/closing automatic opening/closing interlocking door according to the present embodiment.
FIG. 2 is a schematic perspective view showing an open state of a sliding/opening/closing combination interlocking door according to the present embodiment.
Figure 3 is a schematic cross-sectional view of a sliding/opening/closing interlocking door according to the present embodiment.
Figures 4 and 5 are schematic drawings showing a connecting member according to the present embodiment.
Figure 6 is a schematic drawing showing the operating state of a connecting member according to the present embodiment.
Fig. 7 is a drawing schematically illustrating the configuration of a driving unit for automatic opening and closing of a linkage door according to this embodiment.
Figure 8 is a schematic drawing illustrating a fixture according to the present embodiment.
Figure 9 is a schematic drawing for explaining the operation of the fixture according to the present embodiment.
Figure 10 is a schematic drawing for explaining the automatic opening and closing operation of the interlocking door according to the present embodiment.
Figure 11 is a schematic flowchart showing the automatic opening and closing process of the interlocking door according to the present embodiment.

Hereinafter, embodiments of the present invention will be described in detail. However, these are presented as examples, and the present invention is not limited thereby, and the present invention is defined only by the scope of the claims described below. The embodiments described below can be modified in various forms without departing from the concept and scope of the present invention. Where possible, identical or similar parts are indicated using the same reference numerals in the drawings.

The terminology used below is for the purpose of describing specific embodiments only and is not intended to limit the invention. The singular forms used herein include the plural forms as well, unless the context clearly dictates otherwise. The word "comprising," as used in the specification, specifies particular features, regions, integers, steps, operations, elements, and/or components, but does not exclude the presence or addition of other particular features, regions, integers, steps, operations, elements, components, and/or groups.

Hereinafter, preferred embodiments of the present invention will be described. However, the following embodiments are only preferred embodiments of the present invention, and the present invention is not limited to the following embodiments.

In the following description, a door piece may refer to an individual door leaf that opens and closes the door. In addition, a sliding door piece refers to a door piece that opens and closes by sliding, and a swing door piece refers to a door piece that opens and closes by rotating.

This embodiment describes a structure in which two sliding door pieces are provided on one swing door piece as an example. This embodiment is not limited thereto, and a structure in which one or three or more sliding door pieces are provided is also applicable.

Figures 1 to 3 illustrate the configuration of a sliding/opening/closing interlocking door according to the present embodiment.

For the convenience of explanation below, the y-axis direction in Fig. 1 is referred to as the up-down direction, the upper part along the y-axis direction is referred to as the upper part or the upper part, and the lower part is referred to as the lower part or the lower part. In addition, the short-axis direction refers to the z-axis direction in Fig. 1, which is a relatively short side in rectangular coordinates, and the major-axis direction refers to the x-axis direction, which is a relatively long side.

As illustrated, the interlocking door (100) may include a main frame (10), a rail frame (15), a rotating frame (17), a sliding door piece (20), a swing door piece (23), a driving unit (30) for moving the sliding door piece (20) along the longitudinal direction for automatic opening and closing of the interlocking door, and a fixing member (40) for selectively connecting the driving unit (30) and the sliding door piece (20).

In addition, a connecting member (60) installed between the rail frame (15) and the rotating frame (17) may be further included.

The main frame (10) is a square frame structure forming an outer skeleton, and may include a horizontal frame (11) forming the top and a vertical frame (13) forming both side ends. The size of the main frame (10) may be varied. The main frame (10) may further include a floor frame (not shown) forming the bottom to form a lattice shape.

The horizontal frame (11) at the top has an open front and forms an accommodation space inside. A driving unit (30) for automatic door opening and closing can be installed in the accommodation space inside the horizontal frame (100).

The interlocking door of this embodiment may be provided with a front finishing panel (14) on the front of the horizontal frame (11) to cover the internal space of the horizontal frame (11) so that the exterior can look neater.

The front finishing panel (14) is installed so as to be detachable from the horizontal frame. Accordingly, when necessary, the front finishing panel (14) can be opened to easily repair the driving unit (30) or fixture (40) installed inside the horizontal frame (11).

The front finishing panel (14) may have a structure in which the lower part extends to the sliding door piece (20) to cover the gap between the rail frame (15) and the sliding door piece (20).

Accordingly, the front of the horizontal frame (11) opened by the front finishing panel (14) is closed, and the gap between the rail frame (15) and the sliding door piece (20) is covered. Accordingly, the driving unit (30) as well as the fixing member (40) connecting the driving unit (30) and the sliding door piece (20) are covered by the front finishing panel (14), so that the exterior of the door is kept neat and the aesthetic appeal is enhanced.

A rail frame (15) can be installed at the bottom of the horizontal frame (11). The rail frame (15) supports a plurality of sliding door pieces (20) so as to be able to slide.

The rail frame (15) is formed by arranging at least one rail (16) along the short axis direction, and each rail (16) has a structure extending along the long axis direction. In this embodiment, two rails (16) are arranged along the short axis direction so that two sliding door pieces (20) can be installed.

A wheel (24) is installed on the upper part of the sliding door piece (20) and is placed on the rail (16) of the rail frame (15) and rolls along the rail (16). Accordingly, the sliding door piece (20) can move in the longitudinal direction by rolling along the rail (16) while being supported by being hung on the rail (16) via the wheel (24).

The rail frame (15) is formed by cutting off one end portion of the rail frame (15) to form a rotating frame (17) separated from the rail frame (15). The rotating frame (17) forms one end portion of the rail frame (15) and is rotatably axially coupled to the main frame (10). For this purpose, a rotating shaft (19) may be installed in the vertical frame (13) or the horizontal frame (11). The rotating frame (17) is axially coupled to the rotating shaft (32) and rotates via the rotating shaft (19).

The rotating frame (17) is a part separated from the rail frame (15), and the rail (18) is formed in the same manner as the rail frame (15). The connecting member (60) installed between the rail frame (15) and the rotating frame (17) connects each rail (16, 18) of the rail frame (15) and the rotating frame (17). Accordingly, when the rotating frame (17) and the rail frame (15) are arranged in a straight line, the rail (16) of the rail frame (15) and the rail (18) of the rotating frame (17) are also arranged in a straight line without misalignment.

The connecting member (60) connects each rail (16, 18) between the rotating frame (17) and the rail frame (15). Therefore, when the sliding door piece (20) is moved, the wheel (24) of the sliding door piece (20) rolls smoothly from the rail frame (15) to the rotating frame (17) along the rail (21, 31) connected via the connecting member (60). Accordingly, the sliding door piece (20) can be moved between the rail frame (15) and the rotating frame (17).

The swing door piece (23) is positioned at the outermost side along the z-axis direction, which is the short-axis direction in Fig. 1. The swing door piece (23) can be fixedly installed on the rotating frame (17). Accordingly, it rotates together with the rotating frame (17) to open and close. The swing door piece (23) is axially connected to the rotating shaft (19) installed on the main frame (10).

The sliding door piece (20) is opened and closed by sliding along the x-axis direction, which is the longitudinal direction in Fig. 1. In this embodiment, two sliding door pieces (20) are provided. Hereinafter, for convenience of explanation, the sliding door piece (20) adjacent to the opening/closing door piece (23) is referred to as the middle door piece (21), and the sliding door piece (20) arranged on the outside thereof is referred to as the outer door piece (22). The sliding door piece (20) may refer to both the middle door piece (21) and the outer door piece (22).

In this embodiment, a linkage may be installed at the bottom of each door piece to link and move the two sliding door pieces (20) and the swing door piece (23). Linkage may mean that when one sliding door piece is moved, the entire sliding door piece moves in the same direction so as to be fully opened or overlapped. The linkage is a structure that is already known, and a detailed description thereof will be omitted below.

The interlocking door (100) of this embodiment can be opened by sliding the sliding door piece (20) against the rail frame (15), or by moving the entire sliding door piece (20) to the rotary frame (17) and rotating the rotary frame (17) around the rotary axis (19) to open the entire door.

A connecting member (60) is installed at the facing end between the rail frame (15) and the rotating frame (17). The connecting member (60) is installed between the rail frame (15) and the rotating frame (17) to selectively connect each rail (16, 18) of the rail frame (15) and the rotating frame (17), and prevents the rotating frame (17) from sagging.

Hereinafter, the connecting member of the present embodiment will be described with reference to FIGS. 4 to 6.

The connecting member (60) of the present embodiment may include a first connecting member (61) installed at the front end of the rail frame (15) and connected to the rail (16) of the rail frame (15), a second connecting member (62) installed at the front end of the rotary frame (17) and in contact with the first connecting member (61) and connected to the rail (18) of the rotary frame (17), a step (63) formed at the first connecting member (61) between the facing front surfaces of the first connecting member (61) and the second connecting member (62), and a support member (64) formed protruding on the front surface of the second connecting member (62) at a position corresponding to the step and spanning the step.

The first connecting portion (61) and the second connecting portion (62) each form separate, distinct components. The size and shape of the first connecting portion (61) and the second connecting portion (62) can be modified in various ways.

The first connecting member (60) is fixedly installed at the front end of the rail frame (15) and forms the front end of the rail frame (15). The second connecting member (62) is fixedly installed at the front end of the rotary frame (17) and forms the front end of the rotary frame (17) and moves together with the rotary frame (17). As the rotary frame (17) rotates, the second connecting member (62) moves to the first connecting member (61) fixed to the rail frame (15) and engages with each other or separates and is separated.

The first connecting member (61) may include a body (65) having a step (63) formed on the front and an insertion portion (67) formed on the rear with a shape corresponding to the cross-sectional shape of the end of the rail frame (15) so as to be inserted into the end of the rail frame (15), a fastening portion (69) formed on the body (65) and assembled to the rail frame (15) with a bolt, and a connecting rail (71) formed on the body (65) and connected to the rail of the rail frame (15).

The insertion portion (67) may be formed in a shape corresponding to the cross-sectional shape of the front end of the rail frame (15). The first connecting port (61) may be firmly connected to the rail frame (15) by having the front end of the rail frame (15) fit into the insertion portion (67) formed in the body (65). Accordingly, the wheel (24) of the sliding door piece (20) may pass over the connecting rail (71) so that the connecting rail can sufficiently support the load of the sliding door piece (20). The fastening portion (69) may be, for example, a structure in which a nut to which a bolt is fastened is integrally formed, and may be a structure in which the nut is fastened by passing through the rail frame (15) and fixed with a bolt. The connecting rails (71) formed in the body (65) are formed in the same number and at the same positions as the rails (16) formed in the rail frame (15) and are connected in a straight line with the rails (16) of the rail frame (15). Accordingly, the wheel (24) of the sliding frame can move smoothly along the rail (16) of the rail frame (15) and the connecting rail (71) of the first connecting member (61).

The second connecting member (62) may include a body (66) having a support member (64) formed on the front side and an insertion member (68) having a shape corresponding to the cross-sectional shape of the end of the rotating frame (17) so as to be fitted to the end of the rotating frame (17) on the rear side, a fastening member (70) formed on the body (66) and assembled to the rotating frame (17) with a bolt, and a connecting rail (72) formed on the body (66) and connected to the rail (18) of the rotating frame (17).

The second connecting member (62) and the insertion member (68) may also be formed in a shape corresponding to the cross-sectional shape of the tip end of the rotating frame (17). The second connecting member (62) may be firmly connected to the rotating frame (17) by having the tip end of the rotating frame (17) fit into the insertion member (68) formed in the body (66). Accordingly, the load of the sliding door member (20) can be sufficiently supported by the connecting rail (72) in the process in which the wheel (24) of the sliding door member (20) passes over the connecting rail. The fastening member (70) may have a structure in which, for example, a nut to which a bolt is fastened is inserted and fixed by a bolt between the rotating frame (17) and the nut. The connecting rails (72) formed in the body (66) are formed in the same number and at the same positions as the rails (18) formed in the rotating frame (17) and are connected in a straight line with the rails (18) of the rotating frame (17). Accordingly, the wheel (24) of the sliding frame can move smoothly along the rail (18) of the rotating frame (17) and the connecting rail (72) of the second connecting member (62).

In this embodiment, the second connecting member (62) comes into contact with the first connecting member (61) or is separated from the first connecting member (61) according to the rotation of the rotating frame (17). Accordingly, the facing front surfaces between the first connecting member (61) and the second connecting member (62) come into contact with or are separated from each other according to the rotation of the rotating frame (17).

The second connecting member (62) installed in the rotating frame (17) and the first connecting member (61) installed in the rail frame (15) have a predetermined thickness in the short-axis direction, so that interference may occur between the first connecting member (61) and the second connecting member (62) that are in contact with each other during the process of rotating the rotating frame (17). The connecting member (60) of the present embodiment is structured to prevent interference between the front surfaces of the first connecting member (61) and the second connecting member (62). To this end, the facing front surfaces between the first connecting member (61) and the second connecting member (62) may be formed to have a curved shape. For example, the facing front surfaces of the first connecting member (61) and the second connecting member (62) may be formed to have a curvature radius corresponding to the radius of rotation (R) centered on the rotation axis (19) of the rotating frame (17).

In addition to the above structure, the facing front surface between the first connecting member and the second connecting member can be formed to be inclined at a predetermined angle with respect to the short axis direction of the horizontal frame.

Accordingly, when the rotary frame (17) is rotated around the rotary axis (19) by opening the door panel (23), the front of the second connecting port (62) installed on the rotary frame (17) can rotate smoothly without being caught by the front of the first connecting port (61) installed on the rail frame (15). Even when the door panel (23) is closed, the second connecting port (62) can rotate smoothly without interfering with the first connecting port (61). Accordingly, even if the fronts of the first connecting port (61) and the second connecting port (62) are arranged close to each other, they can be separated or combined without interfering with each other.

In addition, the front surfaces of the first connecting portion (61) and the second connecting portion (62) can be brought into close contact as closely as possible, thereby minimizing the gap between the connecting rails (71, 72), and enabling the sliding door piece (20) to move more smoothly and smoothly.

The connecting member (60) of this embodiment can prevent the rotating frame (17) from sagging due to its own weight by connecting the first connecting member (61) and the second connecting member (62) with a step (63) and a support member (64). The step (63) can be continuously formed by recessing along the short axis direction on the front surface of the first connecting member (61). The support member (64) is formed to protrude on the front surface of the second connecting member (62) so that it can be hung over the step (63).

Accordingly, when the second connecting member (62) comes into contact with the first connecting member (61) as the rotating frame (17) rotates, the supporting member (64) protruding from the second connecting member (62) moves onto the step (63) of the first connecting member (61). Accordingly, the supporting member (64) hangs over the step (63) and the second connecting member (62) is supported by the first connecting member (61).

The rotary frame (17) on which the second connecting member (62) is installed is supported only by the rotary shaft (19), and the free end, the tip end where the second connecting member (62) is installed, can sag due to its own weight. In the case of this embodiment, the free end of the rotary frame (17) is supported by the first connecting member (61) via the support piece (64) on the step (63), thereby preventing the sagging of the rotary frame.

That is, when the swing door piece (23) is closed, the support piece (64) of the second connecting member (62) installed in the rotating frame (17) moves to the step (63) of the second connecting member (62). The support piece (64) is supported by being supported by the step (63). Accordingly, the rotating frame (17) on which the second connecting member (62) is installed does not sag down and is positioned at the same height as the rail frame (15). The rail (16) of the rail frame (15) and the rail (18) of the rotating frame (17) are connected at the same height, so that no step occurs.

In this way, by supporting the support piece (64) of the second connection member (62) by hanging over the step (63) of the first connection member (61), the rotary frame (17) on which the second connection member (62) is installed can be prevented from sagging downwards with respect to the rail frame (15) on which the first connection member (61) is installed. Accordingly, since the second connection member (62) does not sag downwards, the heights of the connection rail (71) of the first connection member (61) and the guide rail (72) of the second connection member (62) are matched with each other, and that state can be maintained.

Accordingly, the wheel (24) of the sliding door piece (20) can move smoothly and smoothly between the rail (16) of the separated rail frame (15) and the rail (18) of the rotating frame (17) and between the connecting rails (71, 72) of the first connecting member (61) and the second connecting member (62). Accordingly, the sliding door piece (20) can be opened and closed more easily by sliding without being caught in any one place.

In addition, the step (63) may be formed with an entrance (73) that is formed to slope downwards on the entrance side where the support piece (64) enters. The support piece (64) supported on the step (63) may also be formed in a shape corresponding to the shape of the step (63). That is, the support piece (64) may be formed to have a thickness that gradually increases in the same manner as the shape of the entrance in the portion corresponding to the entrance (73) of the step (63). Accordingly, even if the entrance (73) is formed on the step (63), the support piece (64) is closely supported on the step (63).

In this way, the height of the entryway (73) of the step (63) is sufficiently greater than the upper and lower thickness of the tip of the support piece (64) moving to the step (63), so that even if the support piece (64) droops down due to the weight of the rotating frame (17), the tip of the support piece (64) can move over the step (63) without interfering with the step (63).

Accordingly, as the second connecting member (62) moves to the first connecting member (61) according to the rotation of the rotating frame (17), the end of the support piece (64) can move more smoothly over the step (63) without being caught on the step (63) during the process of coming into contact with it.

The connecting member (60) of the present embodiment may further include an elastic fixing member that keeps the first connecting member (61) and the second connecting member (62) in a closed state. The elastic fixing member elastically fixes the first connecting member (61) and the second connecting member (62) to prevent them from being easily separated from each other.

The elastic fixing member may be formed as a pair on the front side of the first connecting member (61) and the second connecting member (62) that are in contact with each other. In this embodiment, the connecting member (60) may include a protrusion (74) that is formed protrudingly on the supporting member (64) of the second connecting member (62), and an elastic bar (75) that is formed so as to be elastically and movably on the step (63) of the first connecting member (61) and has a groove (76) formed at the tip in which the protrusion (74) is secured. The formation positions and numbers of the protrusions (74) and the grooves (76) may be variously modified. The protrusion (74) may be formed protrudingly toward the step (63) at the lower end of the supporting member (64). The groove (76) is formed at a position corresponding to the protrusion (74) when the first connecting member (61) and the second connecting member (62) are coupled to each other. As shown in Fig. 4, the elastic bar (76) can be formed in the shape of a bar at the protrusion (63). A groove (76) is formed toward the top at the tip of the elastic bar (75).

Accordingly, when the rotating frame (17) is completely closed, the first connecting member (61) and the second connecting member (62) are combined, and the protrusion (74) formed on the supporting member (64) is seated in the groove (76) formed on the elastic bar (75) of the step (63). The elastic bar (75) in which the groove (76) is formed is elastically bent during the process in which the protrusion (74) is seated in the groove (76), thereby applying elastic force to the groove (76). Accordingly, the second connecting member (62) is fixed to the first connecting member (61) as the groove (76) is elastically pressed against the protrusion (74).

In this way, since the home (76) elastically fixes the protrusion (74), the first connecting member (61) and the second connecting member (62) can remain fixed even when an appropriate external force is not applied. Accordingly, the second connecting member (62) is fixed to the first connecting member (61), thereby preventing the swing door from being easily rotated and opened.

On the contrary, when an external force is applied to the swing door while the rotating frame (17) is closed, the swing door opens as the rotating frame (17) rotates. When an external force exceeding the elastic return force of the elastic bar is applied, the protrusion is released from the groove. The elastic bar is elastically deformed and then returned in the process of the protrusion being released from the groove. In this way, the rotating frame (17) forming the swing door can be easily fixed in a closed state, and when an external force is applied, the fixed state of the rotating frame (17) is released so that the door can be easily opened.

The connecting member (60) of the present embodiment may further include a locking member (80) that selectively secures the sliding door piece (20) moved to the rotating frame (17).

The locking member (80) fixes the sliding door piece (20) so that it does not move when the rotating frame (17) is in the rotationally open state, and releases the fixed state of the sliding door piece (20) when the rotating frame (17) is completely closed.

In this embodiment, the locking member may be installed in the connecting member (60) to automatically release the fixing of the sliding door member (20) when the first connecting member (61) and the second connecting member (62) are joined, and to automatically fix the sliding door member (20) when the first connecting member (61) and the second connecting member (62) are separated.

In this way, since the locking part (80) is formed inside the connecting part (60), the exterior of the connecting part (60) or the exterior of the rail frame (15) and the rotating frame (17) can be formed more neatly and beautifully. In addition, since the sliding door part (20) is automatically fixed and released according to the closing and opening of the rotating frame (17), it can be used more conveniently and accidents due to user error can be prevented in advance.

To this end, the locking member (80) may include a catch bar (81) that is movably installed in the second connecting port (62) and selectively protrudes inwardly from the connecting rail (72) of the second connecting port (62) to block movement of the sliding door piece (20), an elastic member (82) that is installed between the catch bar (81) and the second connecting port (62) to apply elastic force to cause the catch bar (81) to protrude toward the connecting rail, a lever (83) that is formed on the side of the catch bar (81) and protrudes toward the front of the second connecting port (62), and a lever seat (84) that is formed so that the lever (83) is caught on the front of the first connecting port (61) and pushes the lever (83) to move it out of the connecting rail of the second connecting port (62) when connected to the second connecting port (62).

On the outside of the catch bar (81), a cover (86) that surrounds the components of the locking part (80) including the catch bar (81) and is connected to the first connecting port (61) may be further installed.

Accordingly, when the second connection (62) is moved relative to the first connection (61), the lever (83) is pushed against the lever seat (84) of the first connection (61), or the catch bar (81) is moved by the elastic return force of the elastic member (82). Accordingly, the catch bar (81) is selectively moved toward the connection rail to control the movement of the sliding door piece (20).

The locking part (80) of the present embodiment may have a structure in which a catch bar (81) protrudes toward a guide rail (72) along which the middle door part (21) of the sliding door parts (20) moves to control the movement of the middle door part (21).

Since the sliding door pieces (20) move in conjunction with each other, even if only the middle door piece (21) is fixed, the outer door piece (22) linked to it cannot move either, so the entire sliding door piece (20) can be fixed.

The locking part (80) may be provided on the side where the swing door piece (23) is located along the short axis direction. Since the middle door piece (21) is located adjacent to the swing door piece (23), the catch bar (81) may be installed so as to be arranged in the short axis direction and protrude into the inside of the connecting rail (72) through which the middle door piece (21) passes. A hole (87) through which the catch bar (81) comes out is formed through the side of the connecting rail (72). The catch bar (81) protrudes into the inside of the connecting rail (72) through the hole (87) and acts as a stopper that blocks the wheel (24) of the middle door piece (21).

A guide bar (85) may be additionally provided for precise movement of the catch bar (81). The guide bar (85) is installed in the second connecting port (62) and extends in the short-axis direction. The catch bar (81) is inserted into the guide bar (85) and moves along the guide bar. An elastic member (82) such as a spring is installed between the inside of the catch bar (81) and the tip of the guide bar (85).

The lever (83) is integrally formed on the side of the catch bar (81) and protrudes through a long hole (88) formed in the front of the second connecting port (62). The long hole is formed to be long along the short axis so that the catch bar (81) can be moved.

A lever seat (84) is formed on the front of the first connecting member (61) so that the lever (83) is caught at a position corresponding to the lever (83). The lever seat (84) is an end portion where the lever (83) is caught, and may be the end of a groove formed on the short-axis side end of the first connecting member (61) as shown in Fig. 4. As the second connecting member (62) moves and engages with respect to the first connecting member (61), the lever (83) is caught and pushed by the lever seat (84) of the first connecting member (61), thereby moving the catch bar (81).

The lever seat (84) can be formed at a position where the lever (83) can be sufficiently pushed to move the end of the catch bar (81) so that it moves outside the guide rail (72) when the opening/closing door piece (23) is completely closed and the second connection port (62) is connected to the first connection port (61).

When the sliding door piece (23) is closed, the catch bar (81) moves from the inside to the outside of the guide rail (72) so that the catch state of the middle door piece (21) is released. That is, the lever (83) formed on the catch bar (81) is pushed by the lever seat (84) of the first connecting member (61), so that the catch bar (81) moves out of the connecting rail (72). Accordingly, the catch bar (81) is removed from the guide rail (72) of the second connecting member (62), so that the sliding door piece (20) can move freely along the guide rail (72). Accordingly, the door can be opened and closed by pushing the sliding door piece (20) along the rail frame (15) and the rail (18) of the rotating frame (17) arranged in a straight line.

When the sliding door piece (20) is moved all the way toward the rotation frame (17), the rotation frame (17) can be rotated with respect to the rail frame (15) to open and rotate the swing door piece (23).

When the rotating frame (17) is rotated open and the second connecting port (62) is spaced apart from the first connecting port (61), no external force is applied to the lever (83). Accordingly, the catch bar (81) on which the lever (83) is formed is moved toward the guide rail (72) by the elastic force of the elastic member (82) and protrudes into the inside of the guide rail (72).

That is, when the second connection (62) is separated from the first connection (61), the external force applied to the lever (83) by the lever seat (84) of the first connection (61) is removed. Accordingly, the catch bar (81) is moved by the elastic restoring force of the elastic member (82) and protrudes into the guide rail (72) of the second connection (62). The middle door piece (21) of the sliding door piece (20) moved to the rotating frame (17) is caught by the catch bar (81) protruding into the guide rail (72) and its movement is restricted.

Accordingly, the middle door piece (21) is caught on the catch bar (81) and cannot pass over the guide rail, and is fixed to the rotating frame (17). In this way, when the swing door piece is open, the middle door piece (21) is fixed to the rotating frame (17), thereby preventing the sliding door piece (20) from being separated from the rotating frame (17).

Fig. 7 is a drawing schematically illustrating the configuration of a driving unit for automatic opening and closing of a linkage door according to this embodiment.

The driving unit (30) is provided in the horizontal frame (11) and uses driving force to move the sliding door piece (20) in the longitudinal direction, thereby automatically opening and closing the door.

As illustrated in FIG. 7, the driving unit (30) of the present embodiment may include a pair of pulleys (31) rotatably provided at both longitudinal ends of the horizontal frame (11), a servo motor (32) connected to the pulleys (31) to rotate the pulleys (31) forward and backward, a driving belt (33) installed between the pair of pulleys (31), and a controller (34) that controls the servo motor (32) by outputting a driving signal to move and stop the sliding door piece (20).

According to the control signal of the controller (34), the servo motor (32) rotates forward and backward to rotate the pulley (31), thereby causing the sliding door piece (20) connected to the pulley (31) via the fixing member (40) to move. Accordingly, the sliding door piece (20) can be automatically opened and closed while moving in the longitudinal direction by the driving force of the servo motor (32).

The controller (34) detects the position of the fixture (40) installed on the drive belt (33) according to the rotation amount of the servo motor (32), and can accurately calculate the current position of the sliding door piece (20) connected via the fixture (40). Accordingly, the controller (34) applies a driving signal for opening and closing the door to the servo motor (32) according to the position of the sliding door piece (20), thereby properly opening and closing the door according to the user's request. This door opening and closing method will be described again later.

In addition, the driving unit (30) may further include a detection sensor (35) installed in the horizontal frame (11) of the interlocking door according to the present embodiment to detect a person entering or exiting in front of the interlocking door and apply the signal to the controller (34).

The detection sensor (35) may be a structure that detects, for example, infrared rays, etc. to detect the presence or absence of a detection target or movement, etc. According to the detection signal of the detection sensor (35), the controller (34) controls the driving unit (30) to open or close the door. Accordingly, the door can be automatically opened and closed without the user having to separately operate the door, thereby increasing the convenience of use.

Figures 8 and 9 show the structure of a fixture (40) according to the present embodiment.

The fixture (40) is installed between the driving unit (30) and the sliding door piece (20) to transmit power to the sliding door piece (20), and is structured to selectively connect the driving unit (30) and the sliding door piece (20) according to the rotation of the rotating frame (17).

The fixture (40) of the present embodiment may include a moving member (51) that is installed on a driving belt (33) of a driving unit (30) and moves in the longitudinal direction of a horizontal frame (11) according to the movement of the driving belt (33), a fitting plate (42) formed at the lower end of the moving member (51) and inserted through a gap between a rail frame (15) and a sliding door piece (20) and extended to the upper portion of the sliding door piece (20), and a catch member (43) that is installed at the upper portion of the sliding door piece (20) and into which the fitting plate (42) is inserted and fixed.

The movable member (51) is fixedly installed to the drive belt (33), and the insertion plate (42) is fixedly installed to the movable member (51), so that as the drive belt (33) rotates, the insertion plate (42) moves along the longitudinal direction.

As shown in Fig. 8, the fixture (40) may further include a guide rail (50) formed to extend in the longitudinal direction of the horizontal frame (11), and a rail member (51) formed on a movable member (51) and installed to be movable by being fitted into the guide rail (50).

The guide rail (50) may be formed integrally when the horizontal frame (11) is formed. For example, the guide rail (50) may have a cross-sectional shape that is bent inward so that the upper ends face each other and may have a structure that extends in the longitudinal direction. The rail member (51) may be formed integrally at the bottom of the moving member (51) and may have a cross-sectional shape corresponding to the guide rail (50). Accordingly, the rail member (51) is fitted into the guide rail (50) and does not come off, and may smoothly slide along the guide rail (50) in the longitudinal direction.

In this way, the moving member (51) is connected to the guide rail (50) formed on the horizontal frame (11) via the rail member (51), thereby preventing movement in the short-axis direction or the up-down direction.

Accordingly, the fitting plate (42) installed on the movable member (51) is securely connected to the engaging member (43) and can stably maintain the connected state without moving up and down or being pushed in the short-axis direction in the gap between the sliding door piece (20) and the rail frame (15).

The insertion plate (42) has a flat plate structure, and the upper part is fixed to the movable member (51) using a bolt or the like, and the lower part is bent at a right angle and inserted inward through the gap between the rail frame (15) and the upper part of the sliding door piece (20).

The fitting plate (42) can be connected by being caught on a catch member (43) installed at the top of the sliding door piece (20). The catch member (43) of the present embodiment can be installed on the outer door piece (22) among the sliding door pieces.

The catch member (43) may include a pair of stoppers (44) that protrude upward at a gap so that both sides of the catch plate (42) catch, and a groove (45) provided between the stoppers (44) into which the catch plate (42) is inserted. Accordingly, the catch plate (42) may be inserted and removed between the grooves (45) to be combined or separated between the two stoppers (44).

The space between the two stoppers (44) formed on the catch member (43) forms a groove (45) into which the insertion plate (42) is inserted. The space between the two stoppers (44) can be formed to a length that roughly corresponds to the size of the insertion plate (42). Accordingly, when the insertion plate (42) is inserted into the groove (45) of the catch member (43), the flow between the two stoppers (44) can be minimized.

Accordingly, the insertion plate (42) is inserted into the groove (45) provided between two stoppers (44) and is joined to the catch member (43). The two side ends of the insertion plate (42) along the longitudinal direction are each caught and fixed by the stoppers (44).

Accordingly, when the insertion plate (42) moves along the longitudinal direction, the stopper (44) is pressed by the insertion plate (42), and the sliding door piece (20) on which the catch member (43) is installed is moved by being pulled by the insertion plate (42).

As mentioned, the sliding door piece (20) is rotated along with the rotating frame (17) as it is slid into the rotating frame (17) and rotates around the rotating axis (19). As the sliding door piece (20) rotates by the rotating frame (17), the engaging member (43) is separated from or joined to the fitting plate (42).

In addition, as illustrated in FIG. 9, the fixture (40) may further include a slit hole (46) formed by cutting inwardly at the tip of the fitting plate (42), and a protrusion (47) formed by protruding upwardly at a position corresponding to the slit hole (46) in the groove (45) of the engaging member (43) and inserted into the slit hole (46). Accordingly, the fitting plate (42) can be more firmly connected to the engaging member (43) by having both ends caught by the stopper (44) and the slit hole (46) caught by the protrusion (47).

The fitting plate (42) and the catch member (43) may have a structure in which they can be smoothly separated and joined to each other.

As shown in Fig. 9, the insertion plate (42) may have a structure in which the leading edge or leading edge of the slit hole (46) is formed in an arc shape or chamfered. The engaging member (43) has a structure in which a guide piece (48) is formed at the front end of each stopper (44) to guide the insertion plate (42) to the groove (45). The two guide pieces (48) may have a structure in which the leading edges of the facing sides are curved in an arc shape or chamfered to guide the insertion plate (42) to the groove (45).

Accordingly, when the rotating frame (17) is rotated back to its original state while the engaging member (42) and the engaging member (43) are separated by being rotated open, the engaging member (43) moves to the engaging member (42) and the engaging member (42) is inserted into the groove (45) of the engaging member (43).

The tip of the insertion plate (42) is curved in an arc shape, and a guide piece is formed on the catch member (43) to guide the tip of the insertion plate (42) into a groove (45), so that the insertion plate (42) can be smoothly inserted into the groove (45) between the stoppers (44) along the guide piece.

Accordingly, even when the position of the engaging member (43) is slightly misaligned with respect to the position of the engaging plate (42), the engaging plate (42) can be smoothly engaged and connected to the groove (45) of the engaging member (43) when the rotating frame rotates.

Fig. 10 shows the automatic opening and closing operation of the interlocking door according to the present embodiment.

As shown in Fig. 10, the sliding door piece (20) is connected to the driving part (30) by the engaging member (43) and the insertion plate (42) being connected to each other. When the servo motor (32) is driven to open the door while the interlocking door is closed, the pulley (31) rotates and the driving belt (33) connected to the pulley (31) moves.

Accordingly, the insertion plate (42) installed on the drive belt (33) moves together with the drive belt (33). The insertion plate (42) is fixed by being caught on the catch member (43), and as the insertion plate (42) moves in the longitudinal direction, the catch member (43) is pushed and moved. Accordingly, the sliding door piece (20) on which the catch member (43) is installed is pushed and moved by the catch member (42), thereby opening the door.

When the sliding door piece (20) is fully opened and moves to the rotating frame (17), the operation of the servo motor (32) stops. In this state, when the rotating frame (17) is rotated to open the door completely, the engaging member (43) installed on the sliding door piece (20) is separated from the fitting plate (42), and the rotating frame (17) can rotate smoothly without any interference.

The fitting plate (42) is simply inserted into the groove (45) between the two stoppers (44) of the engaging member (43) and fitted, so that the engaging member (43) moves according to the rotation of the rotating frame and can be easily separated by being removed from the fitting plate (42).

Since the servo motor (32) is stopped, the position of the insertion plate (42) is maintained in the stopped position. Accordingly, when the rotation frame (17) that has been rotated open to close the door is rotated back to its original state, the engaging member (43) moves toward the insertion plate (42) and can be smoothly combined with the insertion plate (42).

In this way, by reconnecting the engaging member (43) and the engaging plate (42) to each other, the driving force of the servo motor (32) can be applied to the sliding door piece (20). Accordingly, the engaging plate (42) moves in the longitudinal direction according to the rotational drive of the servo motor (32), and the sliding door piece (20) connected to the engaging plate (42) via the engaging member (43) moves in the longitudinal direction, thereby allowing the door to be closed.

Meanwhile, in this embodiment, the controller (34) can control the driving unit (30) according to the movement of the sliding door piece.

Fig. 11 is a schematic flowchart showing an automatic opening/closing process of a linkage door according to the present embodiment. Hereinafter, the automatic opening/closing process of a linkage door according to the present embodiment will be described with reference to Fig. 11.

As illustrated, when an open signal for opening the door is applied, the controller outputs a signal for driving the door opening to control the servo motor.

The open signal may be a detection signal received from a sensor that detects, for example, a person attempting to enter the door. Or, it may be a rotation value of a servo motor that is transmitted and rotated through a drive belt and pulley as the door is pushed to open the door.

When an open signal like this occurs, the controller calculates that the door is open and drives the servo motor to open it.

As the servo motor is driven to open, the pulley rotates and the drive belt moves, moving the sliding door piece. The sliding door piece continues to move and open by the driving of the servo motor, and when the opening amount of the moving sliding door piece exceeds the set reference value, the controller stops the driving of the servo motor and waits.

Here, the opening amount of the sliding door piece can be obtained by calculating the position of the fitting piece according to the rotation amount of the servo motor. Since the servo motor can accurately calculate the position of the object through the pulley and the drive belt according to the rotation amount, the controller can accurately calculate the position of the fitting piece, which is the object, from the rotation amount of the servo motor. Accordingly, the position of the sliding door piece connected to the fitting piece through the engaging member, i.e., the opening amount, can be accurately detected.

The reference value can be stored in the controller as a value for the amount of movement of the sliding door, i.e. the degree of opening.

Accordingly, the sliding door piece moves according to the rotation of the servo motor, and the door opens. When the moved position of the sliding door piece reaches the set reference value, the servo motor stops driving and waits according to the control of the controller.

In this way, the sliding door piece can be slid by driving the servo motor, automatically opening the door.

When an additional opening signal is applied to rotate the rotation frame in the standby state to fully open the door, the controller outputs a signal for door opening drive to control the servo motor.

The additional opening signal could be, for example, the rotational value of a servo motor that is transmitted through a drive belt and pulley to further push the sliding door piece to move it fully toward the rotary frame.

When such an additional opening signal occurs, the controller calculates that the door is completely open and drives the servo motor to open. As the servo motor opens, the pulley rotates and the drive belt moves, causing the sliding door piece to move completely toward the rotating frame. When the sliding door piece moves completely toward the rotating frame and can no longer move, power to the servo motor is cut off and the servo motor stops operating.

Since the sliding door part is completely moved to the rotating frame, the user can rotate the rotating frame to completely open the door.

As the servo motor stops operating, the position of the insert connected to the drive belt can be stably fixed in its current position without changing.

Accordingly, it is possible to prevent the servo motor from malfunctioning and changing the position of the insertion piece. Accordingly, when the rotating frame is rotated back to its original state to close the door, the engaging member of the sliding door piece can be accurately engaged with the insertion plate and reattached.

When the insertion plate is inserted into the engaging member and a closing signal for closing the door is applied, the controller outputs a signal for driving the door closing to control the servo motor.

The closing signal may be, for example, the rotation value of a servo motor that is rotated by being transmitted through a drive belt and pulley (31) as the door is pushed to close the door.

When a closing signal like this occurs, the controller calculates that the door is closed and drives the servo motor to close it.

As the servo motor is driven to close, the pulley rotates and the drive belt moves, moving the sliding door piece. The sliding door piece continues to move and close by driving the servo motor, and when the closing amount of the moving sliding door piece exceeds the set reference value, the controller can stop the driving of the servo motor and end the operation.

As mentioned, the closing amount of the sliding door piece can be confirmed by calculating the position of the fitting piece from the rotation amount of the servo motor. Accordingly, the position of the sliding door piece connected to the fitting piece via the engaging member, i.e. the closing amount, can be accurately detected. Alternatively, when the sliding door piece to be closed has moved completely and can no longer move, the controller can stop the operation of the servo motor.

In this way, the sliding door piece slides by driving the servo motor, allowing the door to close automatically.

In addition, as illustrated in FIG. 11, the present embodiment may further include a step of detecting whether a human body is detected and whether a door opening signal is generated, and a step of operating a driving unit to open the door when a human body is detected or a door opening signal is generated, so that the door can be driven to open when necessary during the door closing process.

Accordingly, when the sliding door piece is moved to close and the door is to be opened again or when a human body is detected, the door automatically opens, allowing the door to be opened quickly and preventing any potential casualties.

Human body detection can be detected through a detection sensor. When a human body is detected by the detection sensor, the controller operates to open the door according to the output signal of the detection sensor.

The door open signal may be, as mentioned, the rotation value of a servo motor that is transmitted through a drive belt and pulley to stop or push the closing sliding door piece in the opposite direction for door opening.

In this way, the controller calculates that the door is open when a human body is detected by the sensor or a door open signal is generated, and drives the servo motor to open the door. Accordingly, the door can be automatically reopened even during the door closing process.

While exemplary embodiments of the present invention have been illustrated and described above, it will be apparent to those skilled in the art that various modifications and other embodiments may be made thereto. It is intended that all such modifications and other embodiments be considered and encompassed by the appended claims and do not depart from the true spirit and scope of the present invention.

10: Main Frame 11: Horizontal Frame
13: Vertical frame 14: Front finishing panel
15: Rail frame 16,18: Rail
17: Rotating frame 19: Rotating axis
20: Sliding door section 21: Middle door section
22: Outer door section 23: Opening door section
24: Wheel 30: Drive Unit
31: Pulley 32: Servo Motor
33 : Drive belt 34 : Controller
35: Detection sensor 40: Fixture
41: Moving member 42: Fitting plate
43: hook member 44: stopper
45: Home 46: Slit hole
47: Protrusion 48: Guide piece
50: Guide rail 51: Rail member
60 : connector
61: 1st connector 62: 2nd connector
63: Single chin 64: Support piece
65,66 : Body 67,68 : Insert
69,70: Joint 71,72: Guide rail
73 : Driveway 74 : Turn
75 : Elastic bar 76 : Home
80 : Lock 81 : Latch
82: Elastic member 83: Lever
84 : Lever seat 85 : Guide bar

Claims (7)

A sliding and opening/closing combined automatic linkage door comprising a main frame including a vertical frame forming both side ends with a square frame structure and a horizontal frame arranged on the upper end of the vertical frame, a rail frame installed below the horizontal frame and having at least one rail arranged along the short-axis direction on the inner side, each rail extending along the long-axis direction, a rotary frame forming one end of the rail frame and being separated from the rail frame and rotatably coupled to the vertical frame or the horizontal frame, at least one sliding door piece supported across each rail of the rail frame and having a wheel that rolls along the rail so as to slide along each rail of the rail frame and move to the rotary frame, a swing door piece fixedly installed to the swing frame, a driving unit provided in the horizontal frame and for moving the sliding door piece in the long-axis direction, and a fixing member installed between the driving unit and the sliding door piece to selectively connect the driving unit and the sliding door piece according to the rotation of the rotary frame. In paragraph 1,
A sliding door with an automatic opening/closing linkage, wherein the driving unit comprises a pair of pulleys rotatably provided at both ends of the longitudinal axis of a horizontal frame, a servo motor connected to the pulleys to rotate the pulleys in a forward and reverse direction, a driving belt installed between the pair of pulleys, and a controller that controls the servo motor by outputting a driving signal to move and stop the sliding door piece. In the second paragraph,
The above fixing member is a sliding door that includes a moving member that is installed on the driving belt of the driving unit and moves in the longitudinal direction of the horizontal frame according to the movement of the driving belt, a fitting plate formed at the lower end of the moving member and inserted through a gap between the rail frame and the sliding door piece and extending to the upper portion of the sliding door piece, and a catch member that is installed at the upper portion of the sliding door piece and into which the fitting plate is inserted and fixed. In the third paragraph,
The above-mentioned engaging member is a sliding-type automatic opening/closing interlocking door including a pair of stoppers that protrude upward at intervals so that both sides of the insertion plate are caught, and a groove provided between the stoppers into which the insertion plate is inserted. In paragraph 1,
It further includes a connecting member installed between the rail frame and the rotation frame to selectively connect each rail of the rail frame and the rotation frame, and prevent the rotation frame from sagging, thereby maintaining the height of the rail frame and the rotation frame at the same level.
The above-mentioned connecting member is installed at the front end of the rail frame and is connected to the rail of the rail frame, the second connecting member is installed at the front end of the rotary frame and is in contact with the first connecting member and is connected to the rail of the rotary frame, the step formed at the first connecting member between the facing front surfaces of the first connecting member and the second connecting member, and a support member protrudingly formed on the front surface of the second connecting member at a position corresponding to the step member and hanging over the step member, the sliding-opening-and-closing combined automatic opening-and-closing interlocking door having a structure in which the support member hangs over the step member to prevent sagging of the rotary frame with respect to the rail frame. In paragraph 5,
The above connecting member further includes an elastic fixing member that maintains the first connecting member and the second connecting member in a closed state,
A sliding-type automatic opening/closing interlocking door, wherein the elastic fixing member comprises at least one projection formed on one of the step and the support piece that are in contact with each other, and at least one groove formed on the other and formed at a position corresponding to the projection, into which the projection is secured. As an automatic opening and closing method of a sliding door with automatic opening and closing interlocking function of Article 1,
An automatic opening/closing method for a sliding/opening combined automatic open/close door, comprising: a step of operating a driving unit to open a door when a door opening signal is generated; a step of detecting whether the opening amount of the door is greater than or equal to a reference value; a step of stopping the operation of the driving unit and waiting if the opening amount of the door is greater than or equal to the reference value; a step of detecting whether an additional opening signal is generated; a step of operating the driving unit to additionally open the door and stopping the operation of the driving unit if the additional opening signal is generated; a step of detecting whether a door closing signal is generated; a step of operating the driving unit to close the door when the door closing signal is generated; and a step of detecting whether the closing amount of the door is greater than or equal to a reference value and terminating the operation if the amount is greater than or equal to the reference value.

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