Sliding door structure

Abstract

To swiftly and easily attach or remove a sliding door without damaging a modesty panel, in an overhang sliding door.SOLUTION: A sliding door structure comprises: a rail 2 installed horizontally along the width direction of an opening on a top face of the opening, within which a sash hanger connected with a sliding door 10 capable of opening / closing the opening is stored in a slidable manner; a first modesty panel 3 installed on one lateral face side of the rail 2 along the width direction of the opening so as to cover a lateral face of the rail 2; and a second modesty panel 4 installed on the other lateral face side of the rail 2 along the width direction of the opening so as to cover the lateral face of the rail 2. A lower end face of the first modesty panel 3 is positioned above an upper end face of the sliding door 10 when the sliding door 10 is connected to the sash hanger, and at the same level as the lower end face of the rail 2 or below the lower end face of the rail 2. The lower end face of the second modesty panel 4 is positioned below the upper end face of the sliding door 10 when the sliding door 10 is connected to the sash hanger.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a sliding door structure. [Background technology]

[0002] Top-hung sliding doors are doors that are hung from above so that there is no need to install a threshold or rail on the floor, and the opening is opened and closed by the sliding door. With top-hung sliding doors, a rail is installed above the sliding door, and a hoist connected to the sliding door via a hanging metal fitting slides along the rail within the rail.

[0003] In a top hung sliding door, a gap is formed between the upper end surface of the sliding door and the lower end surface of the rail along the width direction of the opening so that the sliding door does not come into contact with the rail. Therefore, in order to prevent light from leaking through the gap, a configuration is known in which a fascia is fixed to both sides of the rail or a flange is formed integrally with the rail, as disclosed in the following Patent Document 1, for example. The gap is covered by the fascia or flange provided along the width direction of the opening, so light leakage from the gap is prevented. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2001-303857 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the case of overhead sliding doors, depending on the cross-sectional dimensions of the rail, the lintel in which the rail is housed may Lower end surface The bottom of the rail may protrude from the door, and the side of the rail may be visible from the side. Therefore, by installing a fascia board on each side of the rail to cover the protruding part of the rail, the appearance is improved. Also, the fascia board is tall enough to cover the gap formed between the upper end surface of the sliding door and the lower end surface of the rail, preventing light leakage.

[0006] When the hanging sliding door has an automatic opening and closing function that opens and closes by the detection of a sensor, since the automatic opening and closing device is accommodated in the rail, the cross-sectional dimension of the rail becomes larger than that of the rail of a normal hanging sliding door. Since the depth of the groove of the lintel formed to accommodate the rail is limited by the thickness of the lintel, in the case of a large-sized rail, not all of the rail can be accommodated in the lintel, and the lower part of the rail is likely to protrude.

[0007] Also, when Lower end surface instead, when the rail is directly installed on the housing that forms the opening, the rail is not accommodated in the housing but is installed protruding from the Lower end surface of the housing, so the side surface of the rail can be seen from the side. Therefore, in order to improve the appearance, in the same way as when the rail protrudes from the Lower end surface of the lintel, a cover plate that covers the protruding part of the rail is installed on each of both side surfaces of the rail.

[0008] When attaching or detaching the hanging sliding door, the connection part provided at the upper part of the sliding door is connected to or disconnected from the trolley accommodated in the rail. For example, when removing the sliding door for repair or replacement, after the connection between the sliding door and the trolley is released and the sliding door is lowered from the trolley, the sliding door is tilted forward in front of the opening and laid down so that the sliding door is carried out of the opening.

[0009] However, since the above-mentioned cover plate has a height that can prevent light leakage, even if the sliding door is laid down in front of the opening, the upper end of the sliding door and the cover plate will interfere with each other, and it cannot be carried out of the opening. If the sliding door is forcibly carried out, the cover plate may be damaged. Conversely, the same problem occurs when attaching the sliding door. Therefore, when attaching or detaching the hanging sliding door, the cover plate must also be removed so as not to interfere with the sliding door, which has been time-consuming and laborious.

[0010] The present invention has been made in view of such circumstances, and an object thereof is to provide a sliding door structure that can quickly and easily attach or detach the sliding door without damaging the cover plate in a hanging sliding door.

Means for Solving the Problem

[0011] In order to solve the above problems, the sliding door structure of the present invention adopts the following means. That is, the sliding door structure according to the present invention includes a rail that is horizontally installed along the width direction of the opening on the upper surface of the opening, and a suspension carriage that is slidably accommodated and connected to the sliding door that can open and close the opening. With a cross-section slightly quadrilateral On one side surface of the rail, a first curtain plate installed along the width direction of the opening so as to cover the entire side surface of the rail. Cover On the other side surface of the rail, a second curtain plate installed along the width direction of the opening so as to cover the entire side surface of the rail. The lower end surface of the first curtain plate is located above the upper end surface of the sliding door and is the same as or lower than the lower end surface of the rail when the sliding door is connected to the suspension carriage. The lower end surface of the second curtain plate is located below the upper end surface of the sliding door when the sliding door is connected to the suspension carriage. Cover 。 covering, the lower end surface of the first shutter plate is a horizontal plane parallel to the lower end surface of the rail over the entire width direction of the opening, the height of the first shutter plate is a constant height, and the sliding door can be attached or detached without interfering with the first shutter plate 。

[0012] According to this configuration, the rail is horizontally installed along the width direction of the opening on the upper surface of the opening. The suspension carriage is slidably accommodated in the rail, and the sliding door is connected to the suspension carriage to be able to open and close the opening. The first curtain plate is installed on one side surface of the rail, and the second curtain plate is installed on the other side surface of the rail, each covering the entire side surface of the rail along the width direction of the opening. Thus, when viewed from the side, the side surfaces of the rail on both the one side and the other side are covered by the first and second curtain plates respectively, resulting in a good appearance. Cover 。

[0013] The lower end surface of the second curtain plate is located below the upper end surface of the sliding door when the sliding door is connected to the suspension carriage. Thereby, the second curtain plate has a height that covers the gap formed between the upper end surface of the sliding door and the lower end surface of the rail, preventing light leakage. Further, the lower end surface of the first curtain plate is located above the upper end surface of the sliding door and is the same as or below the lower end surface of the rail when the sliding door is connected to the suspension carriage, and a height difference is formed between the lower end surface of the first curtain plate and the lower end surface of the second curtain plate. Thereby, unlike the case where the lower end surfaces of the first curtain plate and the second curtain plate are at the same height, since the opening height on the first curtain plate side is higher than the opening height on the second curtain plate side, it is difficult for the upper end portion of the sliding door and the curtain plate to interfere with each other when the sliding door is attached or detached.

[0014] In the sliding door structure according to the present invention, the lower end surface of the second curtain plate may be located 3 mm or more and 30 mm or less below the upper end surface of the sliding door when the sliding door is connected to the suspension carriage.

[0015] According to this configuration, since the lower end surface of the second curtain plate is located 3 mm or more below the upper end surface of the sliding door when the sliding door is connected to the suspension carriage, light leakage is surely prevented by the second curtain plate. Since the lower end surface of the second curtain plate is located 30 mm or less below the upper end surface of the sliding door when the sliding door is connected to the suspension carriage, the second curtain plate does not protrude extremely downward and looks good without being conspicuous.

[0016] In the sliding door structure according to the present invention, the rail may be installed on a lintel fixed horizontally along the width direction of the opening on the upper surface of the opening, the upper part of the rail may be accommodated in a groove formed in the lintel, and the lower part of the rail may protrude downward from the lower end surface of the lintel.

[0017] According to this configuration, the lintel is fixed horizontally along the width direction of the opening on the upper surface of the opening, the upper part of the rail is accommodated in the groove formed in the lintel, and the lower part of the rail protrudes downward from the lower end surface of the lintel.

Effects of the Invention

[0018] According to the present invention, in a top-suspended sliding door, the sliding door can be quickly and easily attached or detached without damaging the curtain board.

Brief Description of the Drawings

[0019]

Figure 1

Figure 2

Figure 3

Figure 4

Embodiments for Carrying Out the Invention

[0020] Hereinafter, embodiments according to the present invention will be described with reference to the drawings. A sliding door structure 1 according to an embodiment of the present invention is applied to a top-suspended sliding door that suspends and supports a sliding door 10 from above as shown in FIGS. 1 to 3. Further, the sliding door structure 1 is suitable for an inset sliding door in which the sliding door 10 moves inside an opening 20, and is also applicable to a top-suspended sliding door having an automatic opening and closing function that opens and closes by detection of a sensor.

[0021] The sliding door structure 1 has, for example, a rail 2, a first curtain board 3, and a second curtain board 4. FIGS. 1 to 3 show an example in which a lintel 21 is fixed to an opening 20 where the sliding door structure 1 is installed. The lintel 21 is horizontal along the width direction of the opening 20 on the upper surface of the opening 20. Fix formed. As shown in FIG. 3, a groove 22 for accommodating the rail 2 is formed in the lintel 21.

[0022] Note that the present invention is not limited to an example in which the lintel 21 is provided in the opening 20. For example, without providing a lintel on the building body, the rail 2, the first curtain board 3, and the second curtain board 4 may be directly installed on the building body forming the opening 20. Fix formed. For example, without providing a lintel on the building body, the rail 2, the first curtain board 3, and the second curtain board 4 may be directly installed on the building body forming the opening 20. Fix formed. For example, without providing a lintel on the building body, the rail 2, the first curtain board 3, and the second curtain board 4 may be directly installed on the building body forming the opening 20.

[0023] The rail 2 is installed on the upper surface of the opening 20. When a lintel 21 is fixed to the opening 20 as in the example shown in Fig. 3, the rail 2 is installed on the lintel 21. The opening 20 can be opened and closed by a sliding door 10 that has approximately the same height as the opening 20. Figs. 1 to 3 show a state in which the sliding door 10 closes the opening 20.

[0024] The sliding door structure 1 may have a guide pin 23 installed on the floor surface. Lower end surface A groove (not shown) formed in the sliding door 10 fits into the guide pin 23, and the guide pin 23 restricts the sliding door 10 from swinging.

[0025] The rail 2 is a member that is long in one direction, and is installed horizontally with its longitudinal direction aligned with the width direction of the opening 20. The rail 2 supports the sliding door 10, which opens and closes the opening 20, from above so that the sliding door 10 can slide.

[0026] The rail 2 is accommodated in a groove 22 formed in a lintel 21, and the rail 2 is installed on the upper surface of the opening 20 via the lintel 21. The rail 2 is a hollow member having a substantially rectangular cross section. Lower end surface A groove (not shown) that opens along the longitudinal direction is formed in the rail 2. A hanging wheel (not shown) connected to the upper part of the sliding door 10 is housed inside the rail 2, and as the hanging wheel moves along the longitudinal direction of the rail 2, the sliding door 10 moves along the width direction of the opening 20, opening and closing with respect to the opening 20.

[0027] The lintel 21 has, for example, a rectangular cross section, and a groove 22 is formed in the approximate middle of the depth direction of the lintel 21 when the lintel 21 is attached, and the rail 2 is installed inside the groove 22. As shown in Fig. 3, the lintel 21 has a groove 22 formed therein that corresponds to the outer surface shape of the rail 2. The upper part of the rail 2 is received in the groove 22 formed in the lintel 21, and the lower part of the rail 2 protrudes downward from the lower end face of the lintel 21.

[0028] In addition, the lintel 21 has a lintel 21 on each side of the rail 2.Lower end surface A plate-like first curtain plate 3 and a second curtain plate 4 extending downward from [the above] are respectively installed. The first curtain plate 3 and the second curtain plate 4 are formed of, for example, MDF (medium density fiberboard).

[0029] The first curtain plate 3 and the second curtain plate 4 are, for example, as shown in FIG. 3, adhesively fixed to the duck board 21 via a synthetic resin-made engaging member 6. by fixed being installed Alternatively, the first curtain plate 3 and the second curtain plate 4 are respectively screwed and fixed to the duck board 21. When the first curtain plate 3 and the second curtain plate 4 are directly installed on the body instead of the duck board 21, the first curtain plate 3 and the second curtain plate 4 are respectively screwed and fixed to the body. by fixed being installed When the first curtain plate 3 and the second curtain plate 4 are directly installed on the body instead of the duck board 21, the first curtain plate 3 and the second curtain plate 4 are respectively screwed and fixed to the body. by fixed being installed secured.

[0030] Between the rail 2 and the first curtain plate 3 or the second curtain plate 4, they are installed so that there is no gap and the rail 2 and the first curtain plate 3 or the second curtain plate 4 are in contact with each other. A gap may be formed between the rail 2 and the first curtain plate 3 or the second curtain plate 4. In this case, by minimizing the gap as much as possible so as not to be conspicuous, it is possible to prevent a reduction in appearance and improve the appearance.

[0031] The first curtain plate 3 is installed along the width direction of the opening 20 so as to cover the side surface of the rail 2 on one side surface side of the rail 2, and the second curtain plate 4 is installed along the width direction of the opening 20 so as to cover the side surface of the rail 2 on the other side surface side of the rail 2. As shown in FIG. 3, in this embodiment, the height of the first curtain plate 3 and the height of the second curtain plate 4 are different, and in a state where the first curtain plate 3 and the second curtain plate 4 are attached to the duck board 21, the height of the first curtain plate 3 is lower than the height of the second curtain plate 4.

[0032] Both the first curtain plate 3 and the second curtain plate 4 have a height that at least entirely covers the side surface of the rail 2. Thereby, when viewed from the side, on both the one side surface side and the other side surface side of the rail 2, the side surface of the rail 2 is covered by each of the first curtain plate 3 and the second curtain plate 4, and the appearance is good.

[0033] The lower end surface of the first curtain plate 3 may be formed at the same height as the lower end surface of the rail 2 so as to be flush with the lower end surface of the rail 2, or the lower end surface of the first curtain plate 3 may be formed to protrude from the lower end surface of the rail 2.

[0034] In a state where the sliding door 10 is connected to the suspension carriage, the gap between the upper end surface of the sliding door 10 and the lower end surface of the rail 2 is, for example, 3 mm or more and 20 mm or less. In this case, the protruding length when the lower end surface of the first curtain plate 3 protrudes from the lower end surface of the rail 2 is 3 mm or more and 20 mm or less. The protruding length of the first curtain plate 3 is shorter than that of the second curtain plate 4. By making the first curtain plate 3 protrude more than the lower end surface of the rail, the gap between the upper end surface of the sliding door 10 and the lower end surface of the rail 2, and the lower end surfaces of the suspension carriage and the rail 2 are less visible, and the appearance is good. Even when the first curtain plate 3 protrudes more than the lower end surface of the rail 2, when the connection state between the sliding door 10 and the suspension carriage is released and the sliding door 10 is lowered, the lower end surface of the first curtain plate 3 is above the upper end surface of the sliding door 10, so it is easy to attach or remove the sliding door 10.

[0035] The lower end surface of the second curtain plate 4 is located below the upper end surface of the sliding door 10 in a state where the sliding door 10 is connected to the suspension carriage. Thereby, the second curtain plate 4 has a height that covers the gap formed between the upper end surface of the sliding door 10 and the lower end surface of the rail 2, preventing light leakage. Further, the lower end surface of the first curtain plate 3 is located above the upper end surface of the sliding door 10 and is the same as or lower than the lower end surface of the rail 2 in a state where the sliding door 10 is connected to the suspension carriage, and a height difference is formed between the lower end surface of the first curtain plate 3 and the lower end surface of the second curtain plate 4. Thereby, unlike the case where the lower end surfaces of the two curtain plates installed on both sides of the rail are at the same height, since the opening height on the side of the first curtain plate 3 is higher than the opening height on the side of the second curtain plate 4, it is less likely that the upper end portion of the sliding door 10 and the curtain plate interfere with each other when the sliding door 10 is attached or removed.

[0036] It is desirable that the lower end surface of the second shutter plate 4 is located 3 mm or more below the upper end surface of the sliding door 10 when the sliding door 10 is connected to the suspension carriage. Thereby, light leakage is surely prevented by the second shutter plate 4. Further, it is desirable that the lower end surface of the second shutter plate 4 is located within 30 mm below the upper end surface of the sliding door 10 when the sliding door 10 is connected to the suspension carriage. Thereby, the second shutter plate 4 does not protrude extremely downward, and the second shutter plate 4 is not conspicuous and has a good appearance. For example, when the rail 2 protrudes 38 mm from the Lower end surface duckbill 21, the height of the first shutter plate 3 is, for example, 38 mm, and the height of the second shutter plate 4 is, for example, 50 mm. Note that, in the present embodiment, the dimensions of the first shutter plate 3 and the second shutter plate 4 are not limited to this example.

[0037] Next, a method for installing the sliding door structure 1 according to an embodiment of the present invention will be described.

[0038] First, prepare each member of the sliding door structure 1 to be installed in the opening 20, that is, the rail 2, the suspension carriage, the first shutter plate 3, the second shutter plate 4, the duckbill 21, the left vertical frame 24, the right vertical frame 25, the upright 26, the guide pin 23, etc. A groove 22 for installing the rail 2 is formed in the duckbill 21 in advance. Further, a female screw hole (not shown) for screw-coupling the rail 2 may be formed in the duckbill 21 in advance.

[0039] Then, the left vertical frame 24, the right vertical frame 25, and the duckbill 21 are combined to form an opening frame. The opening frame constituted by the left vertical frame 24, the right vertical frame 25, and the duckbill 21 is attached to the housing that is the side surface and the upper surface of the opening 20 Fix to.

[0040] Further, before installing the rail 2 on the duckbill 21, the suspension carriage is installed inside the groove provided in the rail 2. Note that, in the case of the rail 2 having an automatic opening / closing device, since the automatic opening / closing device and the suspension carriage are installed inside the groove and the product is shipped from the factory and carried into the site, the work of installing the suspension carriage on the rail 2 is unnecessary.

[0041] After the suspension crane is installed on the rail 2, the rail 2 is installed inside the groove 22 provided in the doorframe 21. The rail 2 is screwed by fixed being installed to the doorframe 21. At this time, the upper part of the rail 2 is accommodated in the groove 22 formed in the doorframe 21, and the lower part of the rail 2 protrudes downward from the lower end surface of the doorframe 21.

[0042] Next, the first shutter 3 and the second shutter 4 are installed on the doorframe 21. The first shutter 3 is installed on one side surface of the rail 2, and the second shutter 4 is installed on the other side surface of the rail 2. The first shutter 3 and the second shutter 4 are respectively bonded and fixed to the doorframe 21 by an adhesive. Specifically, an adhesive is applied to the fitting groove into which the eaves member 6 formed in the doorframe 21 is inserted, and the eaves member 6 is fitted. Then, an adhesive is applied to the fitting groove formed in each of the first shutter 3 and the second shutter 4 into which the eaves member 6 is inserted, and the first shutter 3 and the second shutter 4 are fitted to the eaves member 6 installed on the doorframe 21. Note that the first shutter 3 and the second shutter 4 use the eaves member 6 not and are respectively screwed by fixed being installed to the doorframe 21. In this case, screws are driven into the Lower end surface of the first shutter 3 or the second shutter 4. The screw heads are hidden by a cap or a seal Lower end surface in the first shutter 3 or the second shutter 4.

[0043] Thereby, the first shutter 3 and the second shutter 4 are installed along the width direction of the opening 20 so as to cover the side surfaces of the rail 2 respectively. The height of the first shutter 3 is different from the height of the second shutter 4. In the state where the first shutter 3 and the second shutter 4 are attached to the doorframe 21, the height of the first shutter 3 from the doorframe 21 is lower than the height of the second shutter 4 from the doorframe 21. Thereby, a height difference is formed between the lower end surface of the first shutter 3 and the lower end surface of the second shutter 4.

[0044] Next, guide pins 23 are installed at predetermined positions on the floor surface. Then, the sliding door 10 is attached to the rail 2 Install and InstallThis is done as follows. Specifically, first, with the sliding door 10 tilted diagonally with respect to the front of the opening 20, the lowermost end of the sliding door 10 is positioned near the attachment position of the sliding door 10. Also, a guide pin 23 is inserted into a guide groove (not shown) formed along the longitudinal direction of the lower end surface of the sliding door 10, and the sliding door 10 is placed on the floor surface. At this time, the sliding door 10 is tilted toward the side of the first shutter 3, which is the lower one of the first shutter 3 and the second shutter 4.

[0045] Then, the sliding door 10 is lifted vertically from the diagonally tilted state until it is perpendicular to the floor surface, and then the sliding door 10 is lifted in the vertical direction. Next, a connection part provided at the upper part of the sliding door 10 is connected to a suspension carriage housed in the rail 2 provided in the doorframe 21. Thereby, the sliding door 10 is connected to the rail 2 via the suspension carriage.

[0046] Conversely, when removing the sliding door 10 for the purpose of repairing or replacing the suspension carriage, first, in the state shown in FIG. 4(a), the connection between the suspension carriage housed in the rail 2 and the connection part provided at the upper part of the sliding door 10 is released. Thereby, the sliding door 10 is removed from the suspension carriage, and as shown in FIG. 4(b), the sliding door 10 is lowered vertically toward the floor surface.

[0047] Then, as shown in FIG. 4(c), the sliding door 10 is tilted diagonally from the state perpendicular to the floor surface, and as shown in FIG. 4(d), the sliding door 10 is carried out of the opening 20. At this time, by tilting the sliding door 10 toward the side of the first shutter 3, which is the lower one of the first shutter 3 and the second shutter 4, interference between the shutter and the sliding door 10 can be prevented without removing the shutter. Then, the rail 2 and the suspension carriage that need to be repaired or replaced are removed from the doorframe 21.

[0048] Next, the operation and effect of the sliding door structure 1 according to the present embodiment will be described. According to the present embodiment, the cross-sectional dimension of the rail 2 is large, and the doorframe 21 in which the rail 2 is housed Lower end surfaceEven when the lower part of the rail 2 protrudes, the appearance is improved by installing the first curtain plate 3 and the second curtain plate 4 that cover the protruding part of the rail 2 on each of the two side surfaces of the rail 2. In particular, when the hanging sliding door has an automatic opening and closing function, the cross-sectional dimension of the rail 2 tends to be larger than that of the rail 2 of a normal hanging sliding door, and is restricted by the thickness of the door jamb 21 so that the groove 22 of the door jamb 21 cannot be made deeper. Therefore, when the rail 2 protrudes from the Lower end surface door jamb 21, the provision of the first curtain plate 3 and the second curtain plate 4 can prevent the appearance from deteriorating. Also, when the rail 2 is directly installed on the housing forming the opening 20 instead of on the Lower end surface door jamb 21, the same operational effects can be achieved by installing the first curtain plate 3 and the second curtain plate 4.

[0049] Furthermore, the lower end surface of the second curtain plate 4 is located below the upper end surface of the sliding door 10 in a state where the sliding door 10 is connected to the trolley. Thereby, the second curtain plate 4 has a height to cover the gap formed between the upper end surface of the sliding door 10 and the lower end surface of the rail 2, preventing light leakage.

[0050] Moreover, the lower end surface of the first curtain plate 3 is located above the upper end surface of the sliding door 10 in a state where the sliding door 10 is connected to the trolley, and is the same as or below the lower end surface of the rail 2. A height difference is formed between the lower end surface of the first curtain plate 3 and the lower end surface of the second curtain plate 4. Thereby, unlike the case where the lower end surfaces of the first curtain plate 3 and the second curtain plate 4 are at the same height, since the opening height on the first curtain plate 3 side is higher than the opening height on the second curtain plate 4 side, when the sliding door 10 is attached or detached, it is less likely that the upper end portion of the sliding door 10 interferes with the curtain plate. Therefore, there is no risk of damage to the curtain plate and there is no need to remove the curtain plate, so the sliding door 10 can be attached or detached quickly and easily without taking time and effort.

[0051] In the above-described embodiment, the case where a single sliding door 10 slides on a rail 2 provided with a single groove has been described as a "single-slide" type. However, the present invention is not limited to this example. For example, the present invention can also be applied to a "double-slide" type in which a rail provided with two parallel grooves is installed and a total of two sliding doors are installed, one in each groove, or a "four-panel double-slide" type in which a total of four sliding doors are installed, two in each groove. Further, the present invention can also be applied to a "split-slide" type in which two sliding doors are installed in a single groove, one sliding door slides to the left and the other slides to the right to fully open, and the two sliding doors are located at the center of the rail to fully close. In addition, the present invention can also be applied to a "triple-slide" type in which a total of three sliding doors are installed, one in each of the three parallel grooves, or a "double-insertion" type in which a storage section is provided and two sliding doors can be stored in the storage section, or a "triple-insertion" type in which three sliding doors can be stored in the storage section. Thus, the present invention can be applied regardless of the number of sliding doors or the number of grooves formed in a single rail.

Explanation of Signs

[0052] 1: Sliding door structure 2: Rail 3: First curtain board 4: Second curtain board 6: Employment member 10: Sliding door 20: Opening 21: Door jamb 22: Groove 23: Guide pin 24: Left vertical frame 25: Right vertical frame 26: Vertical post

Claims

1. A rail having a substantially square cross-section in which a trolley that is horizontally installed along the width direction of the opening on the upper surface of the opening and is connected to a sliding door capable of opening and closing the opening is slidably accommodated; A first curtain plate installed along the width direction of the opening so as to cover the entire side surface of the rail on one side surface side of the rail; A second curtain plate installed along the width direction of the opening so as to cover the entire side surface of the rail on the other side surface side of the rail; comprising: The lower end surface of the first curtain plate is located above the upper end surface of the sliding door and is the same as or lower than the lower end surface of the rail in a state where the sliding door is connected to the trolley. The lower end surface of the second curtain plate is located below the upper end surface of the sliding door in a state where the sliding door is connected to the trolley. The lower end surface of the first curtain plate is a horizontal plane parallel to the lower end surface of the rail over the entire width direction of the opening. The height of the first curtain plate is a constant height, and a sliding door structure in which the sliding door can be attached or detached without interfering with the first curtain plate.

2. The sliding door structure according to claim 1, wherein the lower end surface of the second curtain plate is located 3 mm or more and 30 mm or less below the upper end surface of the sliding door in a state where the sliding door is connected to the trolley.

3. The rail is installed on a lintel that is horizontally fixed along the width direction of the opening on the upper surface of the opening, The upper part of the rail is accommodated in a groove formed in the lintel, and the lower part of the rail protrudes downward from the lower end surface of the lintel. The sliding door structure according to claim 1 or 2.

Images