Rail, movable partition device, partition structure, and rail construction method

Abstract

To provide a rail having an excellent design while maintaining strength, in a case where the rail for partitioning is installed on a lower face of a ceiling.SOLUTION: A rail 100 installed on the lower face of a ceiling 200 comprises: a fixing part 111 for fixing the rail 100 on the ceiling 200; a side wall 112 suspended respectively from both end parts of the fixing part 111; and a parting section 113 installed in a lower part of the side wall 112. A mirror surface 112a is installed in the side wall 112. The mirror surface 112a may be installed in at least a top edge of the side wall 112. Furthermore, the parting section 113 can be protruded outward beyond the side wall 112.SELECTED DRAWING: Figure 2

Description

【Technical Field】 【0001】 The present invention relates to a partition rail provided on the lower surface of an indoor ceiling for partitioning an indoor space, a partitioning device using the rail, a partitioning structure, and a rail construction method. 【Background Art】 【0002】 Conventionally, a partition rail is composed of a long member of metal such as aluminum and is attached by embedding part or all of the rail in the ceiling. The rail is provided with a rail groove that is open downward and formed on the lower surface of the rail, and the partition is configured to be fixable. In the case of a movable partition that can move, a runner attached to the upper end is provided on the movable partition, and the movable partition is configured to travel along the rail. 【0003】 For example, Patent Document 1 (Japanese Unexamined Patent Application Publication No. 2002-38807) discloses an attachment structure for a ceiling partition material in a movable partition device that can attach the ceiling partition material to the lower end portion of the rail in an easy posture, improve workability and work efficiency, exhibit a beautiful appearance, have a simple structure, and be easily detachable. 【0004】 In the attachment structure of the ceiling partition material in the movable partition device described in Document 1, the ceiling partition material is provided with a fitting portion that opens upward and fits from below into a flange formed at the lower end of the rail, and a locking means that engages with the upper surface of the flange. The flange is sandwiched from above and below by the locking means and the fitting portion, whereby the ceiling partition material is attached to the rail. 【0005】 Patent Document 2 (Japanese Unexamined Patent Application Publication No. 2019-7299) discloses a runner that realizes miniaturization of a hanger rail and a movable partition device including the same. 【0006】 The movable partition device described in Patent Document 2 has a runner that can move along the inner wall of a hanger rail, and is pivotally supported on a support shaft that supports a panel, and comprises upper and lower rollers that are spaced apart vertically and individually contact upper and lower ribs that protrude from the upper and lower parts of the inner wall of the hanger rail, respectively, with the upper part of the lower roller being spaced apart from the upper rib and overlapping with the upper rib in the vertical direction. 【0007】 Furthermore, Patent Document 3 (Japanese Patent Publication No. 2018-71277) proposes a partition panel device that allows for the installation of a hanging door without using a separate hanging door device. 【0008】 The partition panel device described in Patent Document 3 is a partition panel device in which front and rear panel bodies are arranged in a lateral direction between an upper panel support provided on the ceiling side and extending left and right, and a lower panel support provided on the floor surface and extending left and right, and the front and rear panel bodies are arranged in a lateral direction, and the ceiling side is provided with rails on which a sliding door can be suspended by a suspension support member between the opposing surfaces of the front and rear panel bodies that face each other, and the sliding door can move in and out from openings formed in the side ends of the front and rear panel bodies arranged at the end. [Prior art documents] [Patent Documents] 【0009】 [Patent Document 1] Japanese Patent Publication No. 2002-38807 [Patent Document 2] Japanese Patent Publication No. 2019-7299 [Patent Document 3] Japanese Patent Publication No. 2018-71277 [Overview of the Initiative] [Problems that the invention aims to solve] 【0010】 Since the partition wall that divides the space is configured to be fixed to a partition rail, the position of the partition can be easily changed in a residence or office. Conventionally, when installing movable partitions, the majority of the rails were installed so that they were located above the surface of the ceiling panel and embedded inside the ceiling, as described in Patent Document 1 for movable partition rails. With such a configuration, the rails do not protrude below the surface of the ceiling panel, thus maintaining the overall aesthetics of the room and avoiding a feeling of confinement. 【0011】 However, in recent years, there has been an increasing demand to relocate movable partitions and rail systems that have already been installed in offices to other locations within the office. Furthermore, there is a need to minimize the construction period and keep construction costs down. However, the installation method for a movable partition device with rails built into the ceiling, as described in Patent Document 1, involves the steps of ceiling demolition, subfloor reinforcement, rail installation, ceiling restoration, and panel suspension. This requires the removal of a large portion of the ceiling panels, necessitating extensive reinforcement work. Furthermore, it has the drawbacks of high relocation or installation costs, a long construction period, and the need for restoration work upon vacating the premises. 【0012】 On the other hand, as described in Patent Documents 2 and 3, a construction method has been proposed in which the rails are installed on the underside of the ceiling panel to improve workability. In this case, however, since the rails are installed on the underside of the ceiling panel, aesthetic problems arise, and a construction method has been proposed in which the rails are miniaturized to maintain aesthetics. 【0013】 Patent documents 2 and 3 describe improvements such as miniaturizing the rails for movable partitions, but these still detract from the aesthetics of the room and pose design problems. Furthermore, the miniaturization of the rails results in insufficient rail strength, requiring welding to connect the rails. In this case, welding must be performed on-site in the office, which makes installation difficult, and the exposed welds may further detract from the aesthetics. 【0014】 This invention was made to overcome the above-mentioned drawbacks, and its purpose is to provide a rail that maintains strength while having excellent design when a partition rail is installed on the underside of the ceiling. Another object of the present invention is to provide rails that can be easily connected to each other and have excellent workability. [Means for solving the problem] 【0015】 (1) A rail conforming to a single curve is a partition rail installed on the underside of a ceiling, comprising a fixing part for fixing the rail to the ceiling, side walls suspended from both ends of the fixing part, and a trim part provided at the bottom of the side walls, and a mirrored surface may be provided on the side walls. 【0016】 In this case, since a mirrored surface is provided on the side wall of the rail, when you look up at the area near the rail from inside the room, the mirrored surface reflects the ceiling surface, making the mirrored surface and the ceiling appear continuous. This gives the entire room a sense of unity and helps maintain the room's aesthetic appeal. Furthermore, a trim section is provided at the lower part of the rail's side wall, and because the rail's side wall projects a virtual image of the ceiling, the trim section appears to be separated from the ceiling. As a result, the trim section appears to be floating in mid-air, giving those in the room a special sense of weightlessness. Therefore, unlike conventional rails where the entire rail protrudes significantly from a flat ceiling surface, it does not give residents a sense of oppression or protrusion. 【0017】 (2) In the rail according to the second invention, in a rail conforming to a single curve, the mirrored portion may be provided at least at the upper end of the side wall. 【0018】 As a result, the mirrored surface is installed close to the ceiling, so the patterns, designs, and textures of the ceiling are clearly and continuously reflected in the mirrored surface. Consequently, it creates the illusion that the mirrored surface is part of the ceiling, making it appear as if the ceiling and the rail are continuous. 【0019】 (3) In the rail according to the third invention, the trim portion may be provided projecting outward from the side wall in one aspect or in the rail according to the second invention. 【0020】 When looking up from inside the room near the rail, since the lower surface of the ceiling is reflected on the mirror surface portion of the side wall, the cut-off portion appears to float in the air below the ceiling. As a result, unlike a conventional rail, the entire rail does not protrude from a flat ceiling surface and is visible, so the presence of the rail is reduced, and the sense of compression and protrusion caused by the rail can be further suppressed. In addition, since a cut-off portion protruding from the side wall is provided, the strength of the rail can be sufficiently ensured as compared with a small rail without a cut-off portion. Furthermore, the cut-off portion protruding from the side wall can be used as a member for connection, and the cut-off portions of adjacent rails can be connected to each other by a connecting member or the like. Therefore, it is not necessary to connect the rails to each other by welding, and the workability of the rails is improved. 【0021】 (4) The rail according to the fourth invention, in the rail according to any one of the third inventions from one aspect, the cut-off portion may include a connecting portion that enables connection between the rails. 【0022】 As a result, when connecting adjacent rails to each other, it is not necessary to weld the rails, and post-treatment (such as painting) of the welded portion is also unnecessary, so the workability of the rails is improved. Therefore, it becomes possible to easily connect the rails to each other at the connecting portion provided in the cut-off portion. 【0023】 (5) The rail according to the fifth invention, in the rail according to any one of the fourth inventions from one aspect, further includes a block that penetrates the ceiling, and the block may be supported by a building structure and fixed to a fixing portion. 【0024】 In a conventional rail embedded in the ceiling, since the entire rail penetrates the ceiling surface, the strength was ensured by appropriately joining with the building structure inside the ceiling. The rail according to the present invention can ensure the strength by appropriately penetrating the block through the ceiling surface, so it is not necessary to penetrate the entire rail through the ceiling surface. Therefore, a rail with excellent workability can be obtained. In particular, in the case of rails for movable partitions, the rails may be subjected to large forces in the horizontal and vertical directions when the movable wall runs. In this case, since the rail body is supported by blocks to the building structure and fixed by fixing parts, the rail body does not need to be fixed through the ceiling, resulting in excellent workability and improved rail holding strength. 【0025】 (6) A rail conforming to another aspect is a rail for a movable partition installed on the underside of a ceiling, comprising a rail body with a hat-shaped cross-section and a block supported by the building structure and fixing the rail body, wherein the rail body comprises a fixing part fixed to the block on the underside of the ceiling, side walls suspended from both ends of the fixing part, and a trim part provided at the bottom of the side walls, and the outer surface of the side walls may be provided with a mirror surface capable of reflecting the underside of the ceiling. 【0026】 As a result, when looking up at the area near the rails from inside the room, the mirrored surface creates a virtual image of the ceiling, making the mirrored surface and the ceiling appear continuous, thus giving the entire room a sense of unity and maintaining its aesthetic appeal. Furthermore, because a trim section is provided at the bottom of the side wall of the rail, a virtual image of the ceiling is projected onto the side wall, making the trim section appear separate from the ceiling. As a result, the trim section is given a sense of floating, and does not give the occupants of the room a feeling of oppression or protrusion. Furthermore, since the blocks are fixed to the building structure and the rail body is supported by the blocks, the rail is easy to install, has high mounting strength, and does not require large cuts in the ceiling, thus reducing construction costs and shortening construction time. Furthermore, when the rails for movable partitions are installed on the underside of the ceiling, the strength is maintained by the hat-shaped rail body and the blocks that fix the rail body, and by providing mirrored surfaces that can reflect the underside of the ceiling on the outer surfaces of the side walls that are suspended from both ends of the fixing part, it is possible to provide a rail with excellent design. 【0027】 (7) A movable partition device following other aspects includes a rail following any of the six aspects from one to the sixth, and a movable wall having an upper end, wherein the rail has rail grooves formed between the side walls, and the movable wall may be provided so as to be movable along the rail with its upper end inserted into the rail groove. 【0028】 This allows the movable wall of the movable partition device installed on the underside of the ceiling to move smoothly along the rail. Furthermore, because the mirrored surface reflects the ceiling surface, the mirrored surface and the ceiling appear to be continuous, providing a movable partition device that gives a sense of unity to the entire room. Therefore, it is possible to partition a space with a degree of freedom while maintaining aesthetic appeal. 【0029】 (8) A partition structure conforming to other planes is a partition structure having a ceiling panel and a rail provided on the lower surface of the ceiling panel conforming to any of the six planes from one to the sixth, and may be configured so that the ceiling panel is reflected in a mirrored surface provided on the outer surface of the side wall. 【0030】 This makes it possible to provide a partition structure with superior design when the partition rails are installed on the underside of the ceiling. Furthermore, because the mirrored surface reflects the ceiling surface, the mirrored surface and the ceiling appear to be continuous, thus providing a partition structure that gives a sense of unity to the entire room. 【0031】 (9) A rail construction method according to other aspects is a rail construction method that includes a connection step of arranging a plurality of rails according to the fourth invention in the longitudinal direction and connecting the ends of adjacent rails, wherein the connection step may include connecting the connection parts with a connecting member placed between the connection parts of adjacent rails. 【0032】 This allows adjacent rails to be connected by connecting members, eliminating the need for welding and making installation easy and safe. [Brief explanation of the drawing] 【0033】 [Figure 1] This is a perspective view showing an example of the installation state of a movable partition device. [Figure 2] This is a schematic enlarged cross-sectional view of the movable partition device shown in Figure 1, when cut perpendicular to the direction of travel of the rollers. [Figure 3] This is an explanatory diagram illustrating the structure of the space above the ceiling and the rail connection method of the movable partition device according to this embodiment. [Figure 4] Figure 2 is a schematic enlarged cross-sectional view of the movable partition device when cut in the direction of the roller's movement. [Figure 5] This is a schematic perspective view of the rail of this embodiment. [Figure 6] This is a schematic perspective view of a rail in another embodiment. [Figure 7] This is a schematic perspective view of a rail in another embodiment. [Figure 8] This is a schematic perspective view of a rail in another embodiment. [Modes for carrying out the invention] 【0034】 Embodiments of the present invention will be described below with reference to the drawings. In the following description, identical parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed descriptions of them will not be repeated. 【0035】 [This embodiment] Figure 1 is a perspective view showing an example of the installation state of a movable partition device according to one embodiment of the present invention. Figure 2 is a schematic enlarged cross-sectional view of the movable partition device of Figure 1 when cut perpendicular to the direction of roller travel. Figure 3 is an explanatory diagram for explaining the ceiling structure and rail connection method of the movable partition device according to this embodiment. Figure 4 is a schematic enlarged cross-sectional view of the movable partition device of Figure 1 when cut in the direction of roller travel. Figure 5 is a schematic perspective view of the rails of this embodiment. 【0036】 (Partition structure 10) As shown in Figure 1, the partition structure 10 includes a ceiling (also called a ceiling panel) 200 and rails 100 for movable partitions provided on the underside of the ceiling. The partition structure 10 is a structure that consists of multiple movable walls 400 installed from the ceiling to the floor in order to divide rooms and spaces within a building into multiple sections. The multiple movable walls 400 are supported by the ceiling 200 via rails 100 fixed to the ceiling 200. These movable walls 400 divide rooms and spaces within the building into multiple sections. 【0037】 (Movable partition device 20) As shown in Figure 2, the movable partition device 20 includes a rail 100 fixed to the ceiling 200 and a movable wall 400 having an upper end portion 410. The rail 100 is composed of two side walls 112 and has a rail groove 116 formed between them. The upper end 410 of the movable wall 400 is inserted into the rail groove 116, and the movable wall 400 is provided to be movable along the rail 100. Furthermore, the upper end portion 410 of the movable wall 400 is equipped with an upper roller 411 and a lower roller 412 that roll along the rail 100. The upper roller 411 and the lower roller 412 roll while in contact with a projection 116a formed in the rail groove 116 formed between the side walls 112 of the rail 100. As shown in the rail groove 116 in Figure 2, the upper roller 411 and the lower roller 412 make contact with the projection 116a and the engaging portion 116b at relatively different points. This is to allow the upper roller 411 and the lower roller 412 to rotate smoothly. 【0038】 (Rail 100) The rail 100 in this embodiment comprises a rail body 110 having a roughly hat-shaped cross-section, a block 150 supported by a building structure 300 and fixing the rail body 110, a fixing piece 130 that fixes the block 150, and a connecting part 140 that connects the rails 100 together. The rail body 110 has a fixing portion 111 that is fixed to the block 150 on the underside of the ceiling 200, side walls 112 that are suspended from both ends of the fixing portion 111, and a trim portion 113 provided at the lower part of the side walls 112. Furthermore, the outer surface of the side wall 112 is provided with a mirror-like surface 112a that can reflect the lower surface of the ceiling 200. 【0039】 The length of the rail 100 is not particularly limited, but in the case of a straight rail, for example, 2m to 5m is preferred. Also, the rail 100 is not limited to a straight rail along the extending longitudinal direction, but may be right-angled, T-shaped, or curved. By combining right-angled rails 100, a corner of the room can be created with the movable wall 400. 【0040】 The rail body 110 that guides the movable wall 400 is installed on the underside of the ceiling 200 and extends horizontally in the direction of movement of the movable wall 400, with a length that covers almost the entire range of movement of the movable wall 400. Furthermore, the rail 100 of this embodiment is provided with a rail groove 116, as shown in Figure 2. The rail groove 116 supports the upper roller 411 and the lower roller 412 attached to the upper end portion 410 of the movable wall 400. The rail 100 also forms a travel path on which the upper end portion 410 of the movable wall 400 can travel. A rail groove 116 is formed that can accommodate the upper end portion 410 inside. The rail body 110 is formed in a hat-shaped cross-section with the bottom open. Multiple rails 100 are connected and arranged on the underside of the ceiling 200 to form a desired travel path. In this way, the arrangement position of the movable wall 400, that is, the size or shape of the space partitioned by the movable wall 400, is appropriately determined. 【0041】 The detailed configuration of the rail 100 in this embodiment is as follows. The rail 100 comprises a rail body 110 with a roughly hat-shaped cross-section and a block 150 that is supported by the building structure 300 and fixes the rail body 110. The rail body 110 includes a fixing portion 111 that is fixed to the block 150 on the underside of the ceiling 200, side walls 112 that are suspended from both ends of the fixing portion 111, and a trim portion 113 provided at the lower part of the side walls 112. For example, the rail body 110 is formed in a long length from a metal such as aluminum. 【0042】 (Fixed part 111) As shown in Figure 2, the fixing portion 111 is formed on the upper part of the rail body 110 and has a pair of locking portions 111a and a fixing groove formed between the two locking portions. The fixing groove has a first groove 111b and a second groove 111c provided below the first groove 111b. The width of the first groove 111b is smaller than the width of the second groove 111c, and the fixing piece 130 inserted into the second groove 111c is configured to be prevented from coming out by the lower surface of the pair of locking portions 111a. 【0043】 The side walls 112, which are suspended from both ends of the fixed portion 111, consist of a first side wall and a second side wall, and a rail groove 116 opening downward is formed between the first side wall and the second side wall. A projection 116a is provided on the inner surface of the first side wall that protrudes inward. In addition, engaging portions 116b that protrude inward (towards the opposing side) are formed at the lower ends of the first and second side walls 112. These engaging portions 116b and projection 116a are provided along the longitudinal direction of the rail body 110. These engaging portions 116b and protrusions 116a engage with the upper roller 411 and lower roller 412, respectively, on only one side opposite each other in cross-section, i.e., at relatively different positions, thereby distributing the weight of the movable wall 400 and supporting the movable wall 400 so that it can move. 【0044】 As shown in Figures 3 and 4, the rail body 110 is fixed to the structure 300 at the fixing portion 111 by a block 150 that penetrates the ceiling 200 (also called the ceiling panel), a fixing piece 130, and a bolt 131. Multiple blocks 150 are arranged at intervals along the rail body 110 in the ceiling 200. The fixing piece 130 is inserted into a fixing groove formed in the fixing portion 111 of the rail body 110, and a bolt 131, which passes through a through hole formed in the block 150, is screwed into a threaded hole provided in the fixing piece 130. This fixes the rail body 110 to the block 150, and the rail body 110 can be fixed to the structure 300 via the ceiling 200. Since multiple blocks 150 are arranged along the rail 100 at intervals on the ceiling 200, the blocks 150 are provided at regular intervals relative to the rail 100. Therefore, the rail body 110 can be installed simply by providing holes in the ceiling 200 at appropriate intervals so that predetermined blocks 150 can be embedded. 【0045】 The size of the block 150 is such that the height is appropriately set according to the thickness of the ceiling 200, but for example, 50 mm to 100 mm is preferable. The width of the block 150 is preferably about 30 mm shorter than the width of the rail body 110. By fastening the fixing part 111 to the structure 300 with bolts 131 using such a block 150, the rail body 110 can be firmly fixed to the building structure 300. Furthermore, it is preferable that the blocks 150 be provided at intervals of 150 mm to 1500 mm along the length of the rail body 110, and more preferably at intervals of 400 mm to 1000 mm. This allows the rail body 100 to be fixed to the structure 300 with appropriate strength while improving workability. In particular, in the section where the movable wall 400 is housed, it is more preferable that the pitch for providing the blocks 150 be 150 mm to 300 mm. This ensures sufficient strength. Note that while Figures 3 and 4 show the case where the block 150 and the fixing part 111 are in the same position for convenience, the block 150 and the fixing part 111 do not need to be in the same position. The block 150 should be appropriately positioned along the rail 100 so that the structure 300 and the rail 100 can be fixed together, and the fixing part 111 should be provided at the connection point of each rail 100. 【0046】 (Side wall 112) The side walls 112 of the rail body 110 are suspended from both ends of the fixing portion 111. A mirrored surface 112a is provided on the outer surface of the side wall 112, so that the mirrored surface 112a can reflect patterns on the ceiling 200 and project them onto the side wall 112. By reflecting the patterns on the ceiling 200 onto the side wall 112, the continuity between the ceiling 200 and the side wall 112 is not lost, and the aesthetic appearance is enhanced. The mirrored portion 112a may be formed by attaching a seal made of a resin film, metal tape, or the like having a mirrored surface to the outer surface of the side wall 112, or by fixing or locking a plate having a mirrored surface to the side wall 112. Alternatively, it may be formed by polishing the side wall 112 of the rail 100 to create a mirrored surface, or a glass mirror with a metal such as aluminum deposited on it may be used. 【0047】 The mirror surface 112a is preferably provided at least at the upper end of the side wall 112. By installing the mirror surface 112a in close proximity to the ceiling 200, the patterns, designs, textures, etc. of the ceiling surface are clearly and continuously reflected in the mirror surface 112a. Therefore, it is possible to create the illusion that the mirror surface 112a is part of the ceiling, making it appear as if the ceiling 200 is continuous and the rail 100 is floating in mid-air. Because the ceiling 200 reflected in the mirror surface 112a creates virtual images according to the viewer's position, it is possible to make it appear as if the rail 100 is actually floating in mid-air, compared to simply having the same pattern as the ceiling 200. When forming the mirror surface 112a by attaching a seal to the outer surface of the side wall 112, the seal may be attached only to the side wall 112, or the mirror seal may be wrapped around from the side wall 112 to the upper part of the fixing part 111. By wrapping the mirror seal around the upper part of the fixing part 111, a mirror surface can be provided between the ceiling 200 and the side wall 112 without any gaps. The mirror surface 112a only needs to be capable of forming a virtual image of the ceiling surface 200 by reflecting indoor light. The reflectivity of the mirror surface 112a is preferably 90% or more, and more preferably 95% or more. Furthermore, 112a is preferably colorless and wavelength-independent, but it may also be colored. 【0048】 The side wall 112 on which the mirror surface 112a is provided is preferably provided perpendicular to the surface of the ceiling 200. This makes it possible to reflect the surface of the ceiling 200 onto the mirror surface 112a without distortion, so that the ceiling 200 appears to be continuous. Furthermore, it is preferable that the mirrored portion 112a be provided so as to be in direct contact with the surface of the ceiling 200. This makes the ceiling 200 appear as if it is continuous. The vertical length of the side wall 112 is preferably 30 mm to 300 mm, more preferably 50 mm to 100 mm, and even more preferably 60 mm to 70 mm. Furthermore, the upper end of the mirror surface 112a is preferably at the upper end of the side wall 112 (close to the ceiling 200), while the lower end of the mirror surface 112a may be at the lower end of the side wall 112, or about 5 mm above the lower end of the side wall 112. This is because the lower end of the side wall 112 is a blind spot due to the trim 113. As shown in Figure 6, one or more grooves running parallel to the ceiling 200 may be provided in the center of the side wall 112, and only the ceiling side of the side wall 112, which is divided vertically by the grooves, may be made into a mirror surface. 【0049】 (Cutout section 113) As shown in Figures 2 and 5, in this embodiment, trim sections 113 are provided symmetrically in cross-section at the lower part of the side wall 112, projecting outward in a direction substantially parallel to the ceiling 200. The two trim sections 113 act as a first connecting section 140a, as will be described later, enabling the connection of multiple rails 100. The cross-sectional shape of the trim portion 113 may be a semicircle formed by a curved surface, as shown in Figures 6 to 8, or it may be a roughly square or roughly trapezoidal shape, etc. When the trim section 113 is roughly rectangular as shown in Figures 2 and 5, its width (horizontal projection from the side wall 112) is preferably 5 mm to 30 mm, and more preferably 10 mm to 23 mm. Its height (height from the bottom surface of the rail 100) is preferably 5 mm to 40 mm, and more preferably 10 mm to 30 mm. This effectively creates a sense of floating for the viewer and improves the strength and connectivity of the rail 100. 【0050】 By providing a trim section 113 directly below the side wall 112 that projects the pattern of the ceiling 200, the trim section 113 can be made to appear as if it is floating, separated from the underside of the ceiling 200. The material and color of the trim section 113 are not particularly limited, but from the viewpoint of ensuring strength, it is preferable to form it integrally with the rail body 110 using iron or aluminum. The color can be appropriately selected from black, brown, gray, metallic colors, etc., depending on the applicable indoor environment, ceiling design, lighting, etc. In order for the trim section 113 to appear to float in space, away from the surface of the ceiling 200, the rail 100 must always be above eye level. Therefore, it is preferable that the rail 100 be installed at a height of 2300 mm or more from the floor. 【0051】 (Connection part 140) Multiple rails 100 can be connected by connecting parts 140. In this embodiment, they can be connected by a first connecting part 140a provided on the trim section 113 and a second connecting part 140b provided on the upper end of the rail groove 116. In this embodiment, the first connecting portion 140a is provided on two trim portions 113 which are symmetrically arranged on both sides of the cross-section. As shown in Figure 2, the first connecting portion 140a is formed by a part of the trim portion 113 and consists of a first rib 113c extending outward from the lower end of the side wall 112, a second rib 113a extending outward from the lower part of the side wall 112 at a vertical distance from the first rib 113c, a connecting piece 113d connecting the outer ends of the first rib 113c and the second rib 113a, and a pair of locking pieces 113b provided within the trim portion 113. A plate-shaped connecting member 141 is placed between the second rib 113a and the locking piece 113b, and adjacent rails 100 are connected by screwing a screw 142 through a through hole formed in the second rib 113a into the connecting member 141. 【0052】 Furthermore, the second connecting portion 140b in this embodiment can also be provided at the upper end of the rail groove 116, that is, below the fixing portion 111. The second connecting portion 140b is configured to prevent the pair of rails 100 from coming loose on the underside of the fixing portion 111. The connecting member 145 is provided with a screw hole, and as shown in Figure 4, a screw 146 is inserted from above or below the fixing portion 111 and screwed into the screw hole, thereby fixing the rails 100 together via the connecting member 145. 【0053】 In this manner, first connecting parts 140a are provided on both sides of the lower part of the rail 100, and second connecting parts 140b are provided on the upper part of the rail 100. By connecting and fixing the ends of adjacent rails 100 at three points that form a triangular cross-section, the connection strength of the rails 100 is improved. By providing a trim section 113 at the end of the rail 100, when connecting rails 100 together, conventionally known connectors such as screws, bolts, and nuts can be used, eliminating the need for welding, making installation easy and quick. Furthermore, if screws or the like are used when connecting rails 100 together, the outer surface of the trim section 113 may be extended so that the screws or the like are not visible from the outside. 【0054】 (Installation method for rail 100) The construction method for rail 100 described above will be explained using Figures 3 and 4. Figure 3 is an explanatory diagram illustrating the structure of the space above the ceiling and the rail connection method of the movable partition device 20 according to this embodiment. 【0055】 As shown in Figure 3, the structure for fixing the rail 100 is one in which a fastener 310 is attached to the lower end of the building's ceiling slab 320. A hanger receiver 315 is fixed to the lower end of an anchor 321 embedded and fixed in the ceiling slab 320. The upper end of a hanger angle 313 is fixed to the hanger receiver 315. A hanger 312 is fixed to the lower end of the hanger angle 313, and a fixing part 111 is connected by a bolt 131 to an L-shaped rail receiver 311 fixed to the hanger 312. The hanger 312 may also have a function to adjust its length according to the height of the ceiling space being constructed. The rail 100 is fixed to the fixing part 111 of this fixing device 310 via a block 150 that is inserted through a through hole provided in the ceiling 200. 【0056】 To explain in more detail, the rail 100 laid on the underside of the ceiling 200 is fixed to the rail receiver 311 and bolt 131 via a block 150 that penetrates a hole in the ceiling 200 and fixes the rail 100. The rail support 311 is further screwed to the hanger 312, and the hanger 312 is screwed to the hanger angle 313. The hanger angle 313 is fixed to the hanger support 315, which is connected by an anchor 321 at the lower end of the ceiling slab 320, thereby indirectly fixing the ceiling slab 320 and the rail 100. Furthermore, if the load of the movable wall 400 is to be supported by the hanger angle 313 alone, there is a risk that the hanger angle 313 will sway. Therefore, by fixing the hanger angle 313 with at least two or more anti-sway angles 314, and constructing the anti-sway angles 314 to be fixed to the ceiling slab 320, the holding force of the movable wall 400 can be kept strong. 【0057】 As described above, the rails 100 of the movable partition device 20 are made up of long members, and multiple rails 100 can be arranged linearly on the underside of the ceiling 200 and combined to form a desired travel path. In this embodiment, the movable partition device 20 has rails 100 laid on the underside of the ceiling 200, but the load of the movable wall 400 is supported by the ceiling slab 320. 【0058】 Next, we will explain how to connect rails 100 together. The rail construction method of this embodiment is a rail construction method that includes the step of arranging a plurality of rails 100 in the longitudinal direction and connecting the ends of adjacent rails 100, wherein a first connecting portion 140a and a second connecting portion 140b are provided at the ends of the rails, and the connecting step includes connecting each connecting portion at three points by connecting members 141 and 145 arranged between the connecting portions of adjacent rails 100. 【0059】 In the process of connecting the ends of the rail 100, the connection points are the two trim sections 113 which are the first connecting section 140a, and the upper end of the rail groove 116 which is the second connecting section 140b. Before bringing the rails 100 together, the connecting members 141 and 145, which are plates, are inserted into the openings in the first connecting portion 140a and the second connecting portion 140b at the ends of each rail, and secured with screws 142 and 146, respectively. In the connection process, the connecting portion 140 of the rails to be connected and the connecting members 141 and 145 are fixed to the ends of each rail 100 by screw fastening. By connecting via the connecting members 141 and 145, it is not necessary to directly connect the rails 100 by welding or the like, and the connection strength can be maintained. 【0060】 Next, the fixing of the ceiling slab 320 to the rail 100 and the connection of the rails 100 to each other will be described in detail. Note that this construction process is not limited to the following and may be selected as appropriate depending on the construction site. First, the hanger 312 and rail support 311 are temporarily attached to the hanger angle 313 fixed to the ceiling slab 320 (first step). In the first step, the bottom surface of the L-shaped rail support 311, which was temporarily fixed in place, is adjusted to be horizontal, and the hanger 312 and rail support 311 are fixed to the hanger angle 313 (second step). In the second step, it is preferable to ensure that the horizontal level of the bottom surfaces of all rail supports 311 within the partition structure is consistent. The hanger 312 and rail support 311 may be fixed with bolts or by welding. Next, before fixing them to the structure 300, an appropriate number of rail bodies 110 may be connected to each other. That is, connecting members 141 and 145 are inserted into the connecting section 140 and aligned with the end of the rail body 110, and the connecting members 141 and 145 are temporarily fastened with screws 142 and 146 (third step). In this way, fixing an appropriate number (for example, 2 to 5) of rail bodies 110 as a set to the structure 300 may improve work efficiency. Then, the set of rail bodies 110 that were temporarily fixed in the third step are sequentially fixed to the structure 300. That is, each rail body 110 is brought into contact with the rail support 311 via the block 150 and temporarily fixed using the fixing piece 130 and bolt 131 (fourth step). In the fourth step, when sequentially fixing a set of rail bodies 110 to the structure 300, it is also necessary to connect the sets of rail bodies together. That is, one set of rail bodies 110 is temporarily fixed to the structure 300, the locking portion 111a that is temporarily fixed to the rail receiver 311 is slid slightly to connect the rail bodies 110 together, and the screws 142 and 146 of the connecting members 141 and 145 are fixed (fifth step). Finally, check that the entire rail is level, tighten all bolts 131 and screws 142, 146, etc., and install the ceiling panel 200 (step 6). The process exemplified above allows for the safe and accurate installation of the rails. 【0061】 (Variation 1) In the above embodiment, the trim portion 113 is shown to be approximately rectangular, but the trim portion 113 may also be a semicircle formed by a curved surface, or it may be approximately square or approximately trapezoidal, etc. As shown in Figure 6, the size of the trim portion 113 may be minimized as much as possible. In other words, this is an example in which the engaging portion 116b and the trim portion 113 are integrated, with the upper end portion 410 of the movable wall 400 moving directly above the trim portion 113, and a connecting portion provided inside the trim portion 113. In this case, if the connection strength of the rail 100 is insufficient, welding or other treatments may be performed as appropriate. Furthermore, in this embodiment, the entire trim portion 113 is made to appear to float, but as in Modification 1, a boundary line may be provided in the center of the side wall 112, and the mirrored portion 112a may be provided only above the boundary line. This makes it possible to make the lower part of the trim portion 113 and the side wall 112 appear to be floating in the air. 【0062】 (Modified versions 2, 3) As a second modification, as shown in Figure 7, the protruding portion of the trim 113 may be semicircular in shape, and as a third modification, as shown in Figure 8, the trim 113 may be deliberately designed to be larger. These modifications make the trim 113 floating in the air more conspicuous and ensure mechanical strength. 【0063】 In the present invention, the partition structure 10 corresponds to "partition structure", the ceiling (ceiling panel) 200 corresponds to "ceiling, ceiling panel", the movable wall 400 corresponds to "movable wall", the rail 100 corresponds to "rail", the movable partition device 20 corresponds to "movable partition device", the upper end portion 410 corresponds to "upper end portion", the side wall 112 corresponds to "side wall", the rail groove 116 corresponds to "rail groove", the rail body 110 corresponds to "rail body", the structure 300 corresponds to "structure", the block 150 corresponds to "block", the fixing portion 111 corresponds to "fixing portion", the trim portion 113 corresponds to "trimming portion", the mirrored portion 112a corresponds to "mirrored portion", the connecting members 141, 145 correspond to "connecting members", and the connecting portion 140 corresponds to "connecting portion". 【0064】 While the above describes a preferred embodiment of the present invention, the present invention is not limited thereto. It will be understood that various other embodiments can be made without departing from the spirit and scope of the present invention. Furthermore, although the operation and effects of the configuration of the present invention are described in this embodiment, these operation and effects are examples and do not limit the present invention. [Explanation of symbols] 【0065】 10 Partition structure 20 Mobile partition device 100 rails 110 Rail body 111 Fixed part 112 Side wall 112a Mirror surface part 113 Parting section 140 Connection section 141 Connecting member 150 blocks 116 Rail groove 200 Ceiling (Ceiling Panel) 300 Structures 310 Fixtures 311 Rail support 312 Hanziko 313 Hanging Angle 314 Stabilization angle 320 slab 321 Anchor 400 Moving Walls 410 Upper end

Claims

[Claim 1] A partition rail installed on the underside of the ceiling, A fixing part for fixing the rail to the ceiling, Side walls that are suspended from both ends of the aforementioned fixing part, The side wall is provided with a trim section at the lower part, A mirror surface is provided on the side wall. The mirrored portion is a rail provided at least at the upper end of the side wall. [Claim 2] The rail according to claim 1, wherein the trim portion protrudes outward from the side wall. [Claim 3] The rail according to claim 1, wherein the trim portion includes a connecting portion that enables the rails to be connected to each other. [Claim 4] The aforementioned ceiling is further provided with a block that penetrates it, The rail according to claim 1, wherein the block is supported by the structure of the building and fixed to the fixed part. [Claim 5] A rail for a movable partition installed on the underside of the ceiling, It comprises a rail body with a hat-shaped cross-section and a block that is supported by the building structure and fixes the rail body, The aforementioned rail body is A fixing part that is fixed to the block on the lower surface of the ceiling, Side walls that are suspended from both ends of the aforementioned fixing part, The side wall is provided with a trim section at the lower part, A mirror-like surface capable of reflecting the lower surface of the ceiling is provided on the outer surface of the side wall. The mirrored portion is a rail provided at least at the upper end of the side wall. [Claim 6] The rail described in claim 1, A movable wall having an upper end, The rail is provided with a rail groove formed between the side walls, The movable wall is a movable partition device in which the upper end is inserted into the rail groove and the wall is movably mounted along the rail. [Claim 7] The ceiling and, A partition structure having a rail according to claim 1 provided on the lower surface of the ceiling, A partition structure configured such that the ceiling is reflected in the mirrored surface provided on the outer surface of the side wall. [Claim 8] A rail construction method comprising a connecting step of arranging a plurality of rails according to claim 3 in the longitudinal direction and connecting the ends of adjacent rails, The aforementioned connection step is a rail construction method in which the connection portion is connected by a connecting member placed between the connection portions of adjacent rails.

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