JP2009062747A - Resin carriage rail for sliding door and sliding door having the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable the use of various types of resins as the material of a slide door carriage rail by increasing the strength of the carriage rail. <P>SOLUTION: This resin carriage rail is so formed of at least a resin in a tubular shape so that a hollow area is produced therein. The hollow area is divided by reinforcement plate parts. Since the carriage rail is formed in such a shape that a plurality of tubes are bound integrally with each other, even if the carriage rail is made of a resin, the carriage rail can exert sufficient strength and durability. Also, since a dowel-like connection member fitted to the hollow area can be used, the carriage rail can be easily and surely connected by using multiple types of member without performing a troublesome connecting operation. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a sliding door that is transported and slid by pulling a door body along a carriage rail, and in particular, the structure of the carriage rail is reinforced and the installation of the carriage rail is complicated. The present invention relates to a sliding shutter that can avoid the above.

  Doors (doors) are provided at entrances and exits of buildings and vehicles, and there are various types. Of these, “sliding” (or “upward sliding”) doors are widely used in which the door body is guided upward by a support member such as a rail and is slid (slid) toward the ceiling of the building. (For example, overslider (registered trademark), overhead door, etc.).

  As a specific example of the sliding door, an overhead door disclosed in Patent Document 1 can be cited. The sliding door disclosed in this document forms a door body by connecting a plurality of panels arranged in the vertical direction so as to be bendable. It is an overhead door that transforms into a storage posture.

  More specifically, the door body is formed by connecting two upper and lower panels so as to be bendable, and guides to the upper end side position, the intermediate side position, and the lower end side position of the door body, respectively. A roller is provided. Furthermore, as a guide rail for guiding these guide rollers, (1) For the intermediate guide roller, a substantially inverted L-shaped first guide rail that guides from the position on both sides of the opening to the position of the indoor ceiling is used. For the upper end guide roller, a second guide that guides the door body in the front-rear direction along the indoor ceiling and guides the upper end guide roller to the upper end position of the opening when closed to make the closing posture of the door body substantially flush. (3) For the lower end guide roller, guide the door body in the vertical direction along both sides of the opening, and guide the lower end guide roller to the upper end position of the opening when storing, so that the storage posture of the door body is substantially A third guide rail is used.

  In the above configuration, the wire is engaged with the support shaft of the lower end guide roller guided by the third guide rail, and the proximal end side of the wire is suspended by the pulley disposed above the third guide rail. And is attached to a wire drum disposed at the rear of the ceiling. Then, when the wire drum is rotated forward and backward by the biasing force of the balance spring or the driving force of the electric motor, the door body is moved up and down based on the winding and feeding action of the wire and the guide actions of the first to third guide rails Operate.

  The sliding door disclosed in Patent Document 1 described above operates a door body by winding a wire on both sides of an opening (entrance / exit). However, the operation configuration of the door body of the sliding door is not limited to the technique using such a wire, and for example, a technique called a trolley system disclosed in Patent Document 2 is also available. Are known.

  A reinforced assembly door disclosed in Patent Document 2 is an upper operation type door having at least one door part, which forms a structural part of the one door part, and is spaced from each other to form an internal space. And an elongate rail member including a side wall located in the inner space, and a first elongate reinforcing member disposed in the inner space and reinforcing the one door portion. More specifically, the door of this technology can be moved between an open position and a closed position by a conventionally designed motor-driven operating mechanism. The operating mechanism includes a linear cross-feed device, such as a rotating screw or roller chain, supported by a beam extending between the motor unit for the operating mechanism and the wall. Further, the arm operates to connect the motor drive operation mechanism including the above-described device and the door to each other.

  In the above configuration, the linear lateral feed device indicated by the beam corresponds to the carriage rail. The carriage rail is provided on the ceiling side, and a driving device such as a motor is provided on the rear side in the door storage direction as viewed from the entrance and exit, and is connected to the carriage rail. A trolley is provided so as to be movable along the carriage rail, and the upper end of the door body is connected to the trolley via an arm. As a result, the trolley moves on the carriage rail by driving the motor, and as a result, the door body opens and closes.

  Examples of the trolley-type door opening / closing technique as described above include an overdoor connecting device disclosed in Patent Documents 3 to 5. In these techniques, by devising the structure of the connecting device, it is possible to easily release the connection between the shutter curtain and the trolley at the overdoor, return the connection, and assemble and disassemble.

  Moreover, in the door opening / closing apparatus disclosed by patent document 6, the technique of reducing the abrasion and friction loss of the sliding surface between a rail and a trolley is disclosed. Similarly, the door opening / closing device disclosed in Patent Document 7 points out the problem of sliding between the trolley and the rail. That is, in this technique, the sliding resistance due to the sliding movement causes the trolley to move smoothly and unpleasant sliding noise is generated, and the trolley is arranged below the rail. In order to solve these problems, the trolley is configured to travel on the guide rail with a travel roller.

  As described above, in the technical field of an upward sliding type door provided with a carriage rail, it is pointed out that a problem relating to sliding between the carriage rail and the trolley is pointed out, or that the trolley is easily connected and assembled. It has been a technical challenge.

  As a typical example of the carriage rail, for example, an example disclosed in Patent Document 8 can be given. In this example, as shown in FIG. 5, the rail body 101 has a plate shape, and when viewed from a cross section (a cross section in a direction perpendicular to the longitudinal direction of the carriage rail), the upper portion at the time of mounting is wired. While a groove-like wiring accommodating portion 103 is provided, a fitting portion 104 into which a trolley, an arm, or the like is movably fitted is formed in a lower portion. In FIG. 5, one end of a trolley or arm (carriage member in Patent Document 8) is fitted into the fitting portion 104, and the other end is connected to the door body. The trolley or arm can be moved along the carriage rail 101 by a moving means such as a chain, a belt, or a screw spindle (drive mechanism, the chain 105 is illustrated in FIG. 5). It moves along the carriage rail 101 by being pulled.

As shown in FIG. 6, normally, a longer carriage rail 101 is formed by connecting a plurality of carriage rails 101 by connecting members (in FIG. 6, rail clamp 121 and bolt 122-nut 123 are illustrated). be able to.
JP 7-324565 A (published December 12, 1995) Japanese Patent Laid-Open No. 10-266731 (released on October 6, 1998) Japanese Utility Model Publication No. 5-6088 (published January 29, 1993) Japanese Utility Model Publication No. 5-7893 (released February 2, 1993) Japanese Utility Model Publication No. 5-32693 (released on April 30, 1993) Japanese Examined Patent Publication No. Sho 62-024985 (Japanese Patent Laid-Open Publication No. Sho 56-108479, published on August 28, 1981) Japanese Patent Laid-Open No. 9-303061 (released on November 25, 1997) JP 2001-504571 A (International publication number: WO 98/51944 (published on November 19, 1998), published in Japan on April 3, 2001)

  However, the above-described conventional configuration has a problem that the carriage rail cannot exhibit sufficient strength depending on the material of the carriage rail. That is, in each of the above-mentioned documents, the specific configuration of the carriage rail is hardly disclosed, and only a case where a flat rail as disclosed in Patent Document 8 is used as a normal carriage rail is known. Not.

  Here, even if the material of the carriage rail is a light metal such as aluminum, the weight is considerable as long as it is made of metal. Since the carriage rail is provided above the ceiling, that is, the entrance / exit, the weight of the rail is never light in the installation work for attaching the metal rail upward. However, if the rail is made of resin in order to reduce the weight, the strength of the resin is inferior to that of metal, so that it cannot withstand a large load that pulls up the door body.

  The present invention has been made in view of the above problems, and it is an object of the present invention to provide a technique that improves the strength of a carriage rail of a sliding door and enables the use of various resins as a material for the carriage rail.

As a result of intensive studies in view of the above problems, the inventor has a shape (box shape) in which a hollow region is formed in the cross section of the carriage rail, and a reinforcing plate structure is provided inside the hollow region. The present inventors have found that the strength can be further improved and have completed the present invention.
That is, the resin carriage rail according to the present invention is connected to the door body used for the sliding door that opens the door by pulling and moving the door body above the building where the door is installed. A carriage rail provided for pulling the door body through an arm, which is formed into a tubular shape so that a hollow region is formed inside at least using a resin, and is orthogonal to the longitudinal direction of the carriage rail. When the cross section of the cross section is a cross section, a reinforcing plate portion formed in a state of connecting the inner surfaces facing each other through the hollow region is provided so as to divide the hollow region into a plurality of portions in the cross section. It is characterized by that.
In the resin-made carriage rail, one end of an arm connected to the door main body is fitted to a portion on the lower side when installed in a building so as to be movable along the extending direction of the carriage rail. A fitting portion; and a moving means accommodating portion that is provided immediately above the fitting portion and that can accommodate therein an arm moving means for moving the arm. In the cross section, the fitting portion It is preferable that the fitting space formed by and the housing space formed by the moving means housing portion are adjacent to each other and connected to each other. Moreover, in the said movement means accommodating part, it is more preferable to form a reinforcement space between the said several wall part by providing so that a several wall part may overlap around at least one part of the said accommodating space. Further, it is particularly preferable that the arrangement direction of the plurality of hollow regions divided by the reinforcing plate portion and the arrangement direction of the reinforcing space and the accommodation space in the moving means accommodation portion are in a mutually intersecting positional relationship.
Furthermore, the resin carriage rail preferably includes a connection member that connects a plurality of carriage rails to form a longer carriage rail, and the connection member is exposed at an end of the carriage rail. More preferably, the dowel-shaped member can be connected to the end portions of the carriage rails by being fitted in a hollow region and stored in a connection region between the end portions of the carriage rails. More preferably, the connection member and the end of the carriage rail are provided with a claw-like portion provided at a position where the connection member is engaged with the hollow region.
Moreover, it is preferable that the said resin-made carriage rail is further provided with the wiring accommodating part which accommodates wiring in the site | part which becomes the upper side at the time of installation to a building.
In addition, the present invention includes a sliding door including the resin carriage rail having the above-described configuration, and in particular, as an arm moving means for moving the arm, at least a chain driving mechanism, a belt driving mechanism, and a spindle driving mechanism. A configuration in which either one is used can be given.

As described above, the resin-made carriage rail according to the present invention has a tubular shape, that is, a box shape in which a hollow area is generated in a cross section, and a reinforcing plate portion is formed so as to divide the hollow area. As a result, the structure is similar to a structure in which a plurality of tubes are bundled and integrated, so even if various resins having lower strength than metal are used, the strength that can be sufficiently used as a carriage rail can be exhibited. it can. Therefore, it is possible to provide a resin-made carriage rail that is lightweight and has sufficient strength as a carriage rail for a sliding door.
Moreover, since it has a hollow area | region, the dowel-shaped member fitted to the said hollow area | region can be used as a connection member. Therefore, it is possible to easily and surely connect the carriage rail without performing complicated connection work using a plurality of types of members such as clamps, bolts, nuts, and the like that are conventional connection members. Play.
Furthermore, the sliding door according to the present invention including the above-described resin carriage rail has a sufficiently practical resin carriage rail that is lighter and excellent in workability. Workability at the time of installing in can be improved further.

  An embodiment of the present invention will be described below with reference to the drawings. It should be noted that the present invention is not limited to the following embodiments, and various modifications can be made within the scope shown in the claims, and techniques disclosed in different embodiments and specific examples, respectively. Needless to say, embodiments obtained by appropriately combining technical means are also included in the technical scope of the present invention.

  The resin-made carriage rail according to the present invention has a configuration formed in a tubular shape so that a hollow region is formed inside using at least resin. Specifically, for example, as shown in FIGS. A configuration in which the hollow region 22 is divided into three by the two reinforcing plate portions 21 can be given. If the cross section perpendicular to the longitudinal direction of the carriage rail 11 is a cross section, in the configuration shown in FIG. 1, when a sliding door is installed in a building, the length of the rectangular hollow region 22 in the cross section is shown. The direction is along the vertical direction. And the said reinforcement board part 21 is provided in the hollow area | region 22 so that it may spread in the direction (horizontal direction) used as a horizontal direction at the time of installation to a building, also as shown in FIG. Therefore, the hollow region 22 is divided into three in the vertical direction.

  In the resin-made carriage rail according to the present invention, the shape of the hollow region 22 in the cross section is not limited to a rectangular shape as shown in FIG. 2, and may be a square shape, a circular shape, It may be oval. Further, the reinforcing plate portion 21 is not limited to the configuration in which two reinforcing plates 21 are formed in the horizontal direction as shown in FIG. 2, and may be formed in the horizontal direction by one or three or more in the vertical direction. One or more sheets may be formed, or one or more sheets may be formed inclined in the horizontal direction or the vertical direction. Further, the reinforcing plate portion 21 is preferably flat in the cross section, but may be curved or may be bent. In general, as shown in FIG. 2, if the plate-like configuration is used, the inner surfaces facing each other through the hollow region 22 are connected to each other, and the gap between the inner surfaces is supported. It is preferable because the strength of the resin carriage rail 11 is easily improved.

  In the present invention, the resin-made carriage rail 11 is formed in a shape that bundles and integrates a plurality of tubes, thereby exhibiting sufficient strength and durability as a carriage rail of a sliding door. If possible, the shape of the hollow region 22 and the division state by the reinforcing plate portion 21 are not particularly limited. Therefore, the shape of the cross section of the resin carriage rail 11 can be appropriately selected according to various conditions such as the specific type and structure of the sliding door, the structure of the building to be installed, and the installation location.

  Here, as shown in FIG. 2, it is preferable that the upper part of the resin carriage rail 11 at the time of installation on a building is provided with a wiring accommodating part 23 for accommodating the wiring. By providing the wiring accommodating part 23, various wirings are not exposed, and it is not necessary to separately provide a protective member for protecting the wirings. Therefore, the number of members can be reduced, and the complicated installation of the sliding door can be effectively avoided. In addition, as shown in FIG. 3, the wiring accommodating part 23 does not necessarily need to be provided. The selection of whether or not to provide the wiring housing portion 23 can be appropriately selected according to various conditions, like the shape of the cross section.

  The material of the resin carriage rail according to the present invention is not particularly limited, and a general resin can be used. These resins may be used alone or as a polymer alloy in which a plurality of types are mixed. In addition to the resin, various additives such as fillers and reinforcing fibers may be added. Therefore, the resin carriage rail according to the present invention may contain other materials other than the resin as long as at least the resin is a main component, and an additive according to physical properties required based on various conditions is added. be able to. Needless to say, the configuration of the present invention can also be applied to a carriage rail formed of a material other than resin. For example, it goes without saying that a carriage rail similar to that of the present invention can be formed of a metal having a smaller thickness.

  The specific manufacturing method of the resin carriage rail according to the present invention is not particularly limited, and a known resin molding method can be suitably used. In particular, in the present invention, since the resin carriage rail has a tubular shape having a length in the primary direction, it is preferable to use extrusion molding which is a molding method suitable for manufacturing a member having the same cross section. Of course, a method other than extrusion molding may be used according to the physical properties, shape, structure, etc. required for the resin carriage rail to be manufactured, or other molding methods may be combined with extrusion molding.

  Further, as shown in FIGS. 2 and 3, the resin carriage rail according to the present invention includes a fitting portion 24 and a moving means accommodating portion 25 at a lower portion when installed on a building. The fitting portion 24 is a structure for fitting one end of an arm connected to the door body so as to be movable along the extending direction of the resin carriage rail 11, and has the configuration shown in FIGS. 2 and 3. In this case, the ends of the plate-like arms are fitted in the horizontal direction so that the resin carriage rail 11 can be moved in the extending direction. Of course, the specific structure of the fitting part 24 is not specifically limited, A suitable shape can be set according to the shape of the edge part of an arm.

  The moving means accommodating portion (hereinafter abbreviated as “accommodating portion”) 25 is provided immediately above the fitting portion 24 and can accommodate therein an arm moving means for moving the arm. Therefore, in the cross section of the resin carriage rail 11, the fitting space 31 formed by the fitting portion 24 and the housing space 32 formed by the housing portion 25 are adjacent to each other and connected. ing. Here, examples of the moving means include a chain drive mechanism using a chain, a belt drive mechanism using a belt, and a spindle drive mechanism using a spindle having a surface with a spiral shape (screw shape). . When these various drive mechanisms are used, the chain, belt or spindle is accommodated in the accommodating portion 25 of the resin carriage rail 11, and the chain or belt is moved or the spindle is rotated in the accommodating portion 25. become.

  For example, as shown in FIG. 4, the door main body 14 of the sliding door according to the present invention is connected to the resin carriage rail 11 via the arm 13, and the arm 13 is a chain or belt in the housing portion 25. One end is connected to each other, or the spiral unevenness formed on one end of the arm 13 and the unevenness on the surface of the spindle are fitted. The door body 14 is connected to the resin carriage rail 11 (and the internal drive mechanism) via the arm 13 above the center portion, and can be moved by the guide rails 15 on both sides of the door body 14. Guided by In the example shown in FIG. 4, the door main body 14 is formed by connecting four rectangular door pieces to form one door main body.

  The resin carriage rail 11 is installed from the entrance / exit side opened and closed by the door toward the back side of the building, and the drive source for driving the chain, belt or spindle is the back end of the resin carriage rail 11. It is housed in a drive source housing 16 provided in the section. Then, the operation of the drive source causes the chain or belt to move or the spindle to rotate so that the arm 13 moves along the resin carriage rail 11 and the other end of the arm 13 is connected. 14 will also move. As a result, the door body 14 is pulled and moved along the resin carriage rail 11, so that the door can be opened and closed. As described above, in the present embodiment, the drive mechanism (moving means) and the end of the arm 13 are connected in some form in terms of configuration. Therefore, in the resin carriage rail 11, the housing space 32 and The fitting space 31 is a space connected adjacent to each other.

  Here, the specific configuration of the storage unit 25 is not particularly limited, and may be an appropriate shape according to the type of drive mechanism stored therein. For example, when the spindle drive mechanism is employed, the cross-sectional shape of the spindle is circular, and therefore, the cross-sectional shape of the accommodating portion 25 may be circular as shown in FIG. Further, when a chain drive mechanism or a belt drive mechanism is employed, the shape of the cross section of the accommodating portion 25 only needs to be square as shown in FIG. Of course, if the cross-sectional shape of the chain or belt is circular or elliptical, it may be circular or elliptical accordingly.

  Furthermore, in the present embodiment, it is preferable that a reinforcing space 33 is formed around the housing portion 25. In other words, it is preferable that the reinforcement space 33 is formed between the plurality of wall portions 26 by providing the plurality of wall portions 26 so as to overlap around at least a part of the accommodation space 32. In the example of FIGS. 2 and 3, the spaces are arranged in the order of the reinforcing space 33, the receiving space 32, and the reinforcing space 33 along the horizontal direction. By arranging the outer wall portions 26b at both ends of the inner wall portion 26a forming the horizontal direction on the horizontal direction side, a reinforcing space 33 is formed between the inner wall portion 26a and the outer wall portion 26b. .

  Thus, by forming the reinforcing space 33 around the accommodating portion 25, the “independent tube” forming the reinforcing space 33 is arranged around the “one tube” as the accommodating portion 25. . Therefore, similarly to the division of the reinforcing plate portion 21 of the hollow region 22, the accommodating portion 25 is formed in a shape in which a plurality of tubes are bundled and integrated. Therefore, in addition to improving the strength of the resin carriage rail 11, the shape retaining property of the accommodating portion 25 that accommodates the drive mechanism therein can also be improved. As a result, in addition to improving the strength of the resin carriage rail 11, it is possible to improve the protection performance of the drive mechanism in the accommodation space 32.

  In the example of this embodiment, in both the examples of FIGS. 2 and 3, the pair of reinforcing spaces 33 are formed so as to sandwich the accommodating space 32 in the horizontal direction. The plurality of reinforcing spaces 33 can be formed by providing one or more intermediate wall portions between the inner wall portion 26a and the outer wall portion 26b. Further, the intermediate wall portion does not need to be provided in parallel to the inner wall portion 26a and the outer wall portion 26b. The inner wall portion 26a and the outer wall portion are based on the required degree of improvement in strength or other conditions. It may be provided in a direction inclined with respect to 26b. For example, a configuration in which the intermediate wall portion is formed radially about the accommodation space 32 may be employed.

  In addition, in the present embodiment, the arrangement direction of the hollow regions 22 divided into three by the reinforcing plate portion 21 and the arrangement direction of the reinforcing space 33 and the accommodating space 32 in the accommodating portion 25 are in a positional relationship intersecting each other. is there. More specifically, the three divided hollow regions 22 are arranged in the vertical direction, and the reinforcing space 33 and the accommodating space 32 are arranged in the horizontal direction. When this positional relationship is viewed as a plurality of tubes, it is assumed that one resin carriage rail 11 is formed by integrating three tubes arranged in the vertical direction and three tubes arranged in the horizontal direction. Can do. Therefore, since a plurality of tubes are arranged and integrated in both the vertical direction and the horizontal direction, the resin carriage is compared with a configuration in which the plurality of tubes are arranged and integrated only in one direction. The strength of the rail 11 can be further improved. In the example shown in FIGS. 2 and 3, the divided hollow region 22 and the spaces of the accommodating portion 25 are arranged so as to be orthogonal to each other. However, the present invention is not limited to this. It may be arranged in a direction that intersects with each other in some form.

  Further, as shown in FIG. 1, the resin carriage rail 11 according to the present invention includes a connecting member 12 that can connect a plurality of resin carriage rails 11 to form a longer carriage rail 11. It is preferable. This makes it possible to change the length of the resin carriage rail 11 according to the size of the building where the sliding door is installed or the size of the entrance / exit where the sliding door is provided (the size of the door body 14). It becomes. In the example shown in FIG. 1, the connection member 12 is stored in the connection region between the end portions of the resin carriage rail 11 by fitting into the hollow region 22 exposed at the end portion of the resin carriage rail 11. Thus, the end portions of the resin carriage rail 11 can be connected to each other to form a dowel member.

  With the dowel-shaped connecting member 12, when the resin carriage rail 11 is connected, the connecting portion is supported inside, so that the connecting member 12 is not exposed and the connecting portion is supported from the outside. More reliable support is possible with a smaller number of members than in the configuration. In particular, in the example shown in FIG. 1, the dowel-shaped connecting member 12 and the end portions of the resin carriage rail 11 are claw-shaped portions 17 at positions where the connecting members 12 are hooked to each other in a state where the connecting member 12 is fitted in the hollow region 22. Is provided. As a result, compared to a configuration in which the connection portion is supported from the outside using a rail clamp or the like, the connection portion is stably supported by catching the claw-like portion 17 without using a fixing member such as a bolt-nut. can do. Therefore, not only the number of members can be reduced, but also the connection work can be further simplified. In addition, you may use a bolt-nut, a screw member, etc. with the nail | claw-shaped part 17 together. As a result, the connection site can be further stabilized.

  In the example shown in FIG. 1, the connecting member 12 having three projecting portions is used so as to fit into all three hollow regions 22 divided into three by the reinforcing plate portion 21. The connecting member 12 may be fitted only in the upper and lower hollow regions 22 except for the center, or may be fitted in the reinforcing space 33 provided around the accommodating portion 25. You may come to match. The specific configuration of the connecting member 12 can employ an appropriate configuration according to various conditions such as the shape of the cross section of the resin carriage rail 11 and the connection strength and durability required for the connecting portion. It goes without saying that the present invention is not limited to the embodiment. Furthermore, a similar connecting member 12 can be employed at a location where the drive source housing 16 and the resin carriage rail 11 are connected.

  Thus, in the present invention, the resin carriage rail having the above-described configuration is used for the sliding door that opens the door by pulling and moving the door body above the building where the door is installed. As a result, a sliding door that is lighter and has improved workability can be obtained. As an arm moving means (drive mechanism) for moving the arm, at least one of a chain drive mechanism, a belt drive mechanism, and a spindle drive mechanism can be appropriately selected and used. In this case, as described above, it is only necessary to match the shape of the accommodating portion with the type of the drive mechanism, so that the design versatility can be improved as a sliding door. The specific type of the sliding door is not particularly limited, and as shown in FIG. 4, a shutter shape in which a plurality of (four in the figure) rectangular door pieces are connected in the vertical direction. The structure provided with the door main body 14 may be sufficient, and the structure provided with the single door main body 14 may be sufficient.

  As described above, in the present invention, the shape (box shape) in which a hollow region is formed in the cross section of the carriage rail and the reinforcing plate structure is provided inside the hollow region, resin can be used as a main material. A carriage rail having sufficient strength and durability can be obtained. Therefore, the present invention can be suitably used in all technical fields related to sliding doors.

It is a perspective view which shows an example of the resin-made carriage rails concerning this invention, and is a figure which shows typically the state which connects the some resin-made carriage rails with a connection member. It is sectional drawing which shows the structure of the cross section of the resin-made carriage rails shown in FIG. It is sectional drawing which shows the other structural example of the resin-made carriage rails based on this invention. It is a perspective view which shows typically an example of a sliding door provided with the resin-made carriage rails concerning this invention. It is sectional drawing which shows typically an example of the cross section of the conventional carriage rail. In the conventional carriage rail, it is a perspective view which shows the example which connects a some carriage rail with a rail clamp, a volt | bolt, and a nut.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Resin carriage rail 12 Connection member 13 Arm 14 Door main body 17 Claw-shaped part 21 Reinforcement board part 22 Hollow area 23 Wiring accommodating part 24 Fitting part 25 Moving means accommodating part (accommodating part)
26 Wall part 26a Inner wall part 26b Outer wall part 33 Reinforcing space

Claims (10)

Used to pull the door body through an arm connected to the door body, used for sliding doors that open the door by pulling and moving the door body above the building where the door is installed. A carriage rail,
Using at least resin, it is formed in a tubular shape so that a hollow region is generated inside,
When the cross section in a direction perpendicular to the longitudinal direction of the carriage rail is a cross section, in the cross section, the inner surfaces facing each other through the hollow area are connected so as to divide the hollow area into a plurality of sections. A resin-made carriage rail for a sliding door, characterized in that a reinforcing plate portion formed by the above is provided. Furthermore, a fitting portion that fits one end of an arm connected to the door main body movably along the extending direction of the carriage rail, in a portion on the lower side when installed in the building,
Provided with a moving means accommodating portion that is provided immediately above the fitting portion and that can accommodate therein an arm moving means for moving the arm;
The fitting space formed by the fitting portion and the accommodating space formed by the moving means accommodating portion are adjacent to each other and connected to each other in the transverse section. The resin-made carriage rail of description.   The said moving means accommodation part forms a reinforcement space between the said several wall part by providing so that a several wall part may overlap in the circumference | surroundings of at least one part of the said accommodation space, It is characterized by the above-mentioned. The resin-made carriage rail as described in 2.   The arrangement direction of the plurality of hollow regions divided by the reinforcing plate portion and the arrangement direction of the reinforcing space and the accommodating space in the moving means accommodating portion are in a positional relationship intersecting each other. 4. A resin carriage rail as set forth in 3.   5. The resin carriage rail according to claim 1, further comprising a connecting member that connects a plurality of carriage rails to form a longer carriage rail. 6.   The connecting member is fitted into a hollow region exposed at the end of the carriage rail and is stored in a connection region between the ends of the carriage rail, thereby enabling connection between the ends of the carriage rail. 6. The resin carriage rail according to claim 5, wherein the resin carriage rail is a dowel-shaped member.   The end of the dowel-shaped connecting member and the carriage rail is provided with a claw-like portion provided at a position where the connecting member is hooked to each other in a state where the connecting member is fitted in the hollow region. The resin carriage rail described.   The resin-made carriage rail according to any one of claims 1 to 7, further comprising a wiring accommodating portion that accommodates wiring in a portion on an upper side when installed in a building.   A sliding door comprising the resin carriage rail according to any one of claims 1 to 8. The sliding door according to claim 9, wherein at least one of a chain drive mechanism, a belt drive mechanism, and a spindle drive mechanism is used as the arm moving means for moving the arm.

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