JP6472057B2 - Membrane ceiling fixture and method of constructing membrane ceiling - Google Patents

Description

  The present invention relates to a membrane ceiling fixture for fixing an edge of a membrane material forming a membrane ceiling to a structural frame of a building, and a method for constructing a membrane ceiling using the membrane ceiling fixture.

  Membrane ceilings that use membrane materials as ceiling materials are increasingly being used in various buildings including relatively large facilities such as gymnasiums, indoor pools, halls, and stations. Membrane ceilings are lighter and softer than conventional ceilings that use hard boards such as gypsum board as the ceiling material. [1] Even if an earthquake occurs, the ceiling material is less likely to collapse or break (earthquake resistant) (2) easy construction, and [3] high degree of freedom in ceiling design. In recent years, focusing on the earthquake resistance of membrane ceilings, the ceilings in school classrooms have been replaced by membrane ceilings.

  The membrane material forming the membrane ceiling is sometimes referred to as a fixture (hereinafter referred to as “membrane ceiling fixture”) in which the edge portion thereof is fixed to the structural frame (column, wall material, beam, etc.) of the building. )). Various types of fixtures for membrane ceiling have been proposed so far (for example, the membrane ceiling edge 5 in FIG. 1 of Patent Literature 1, the bridge hanger 2 in FIG. 3 of Patent Literature 2, and the patent literature 3). (See the tension member 10 in FIG. 1 and the end fitting 10 in FIG. 1 of Patent Document 4.) Some membrane ceiling fixtures can adjust the tension of the membrane material even after the membrane material forming the membrane ceiling has been attached (for example, paragraphs 0027 to 5 of Patent Document 5). (See 0028 and FIGS. 10 and 11).

JP 2007-10031 A JP 2008-255697 A JP 2013-087480 A JP 2014-101715 A Japanese Patent Laying-Open No. 2015-197005

  However, in the conventional fixture for membrane ceiling, a plurality of membrane materials forming the membrane ceiling are in a state without a gap (as shown in FIG. 4 of the present application, the side edge portions of adjacent membrane materials 100 are overlapped. State), it was difficult to stretch. This is because the membrane material forming the membrane ceiling is usually rectangular in plan view, and in order to keep the whole stretched, at least the vicinity of its four corners (near both ends of the edge) is the membrane ceiling. When it is necessary to fix the side edge part of one film material and the side edge part of another film material, the other film material in the one film material is required to be fixed to the fixture. One membrane ceiling fixture that fixes the edge of the portion that overlaps with the other membrane ceiling interferes with another membrane ceiling fixture that fixes the edge of the portion of the other membrane material that overlaps the one membrane material A malfunction occurs. This problem can be solved by consolidating the one membrane ceiling fixture and the other membrane ceiling fixture into one membrane ceiling fixture. It has not been a structure that can easily fix overlapping portions of a plurality of membrane materials with one membrane ceiling fixture.

  The present invention has been made to solve the above-described problem, and an object of the present invention is to make it possible to easily fix overlapping portions of a plurality of membrane materials forming a membrane ceiling with one membrane ceiling fixture. And It is also an object of the present invention to provide a method for constructing a membrane ceiling using this membrane ceiling fixture.

The above issues
A membrane ceiling fixture for fixing an edge of a membrane material forming a membrane ceiling to a structural frame of a building,
A first part whose rear side is fixed to the structural frame of the building;
A film material fixing hole for inserting and fixing a shaft attached to the edge of the film material, and a second part provided to protrude forward from the first part;
A third part provided downward from the front end of the second part so that the lower end part can be hung around the edge of the film material,
Have
Position for fixing the edge of the film material via the shaft body by forming a plurality of film material fixing holes in the shape of a long hole extending in the front-rear direction, or by forming a plurality of holes at predetermined intervals in the front-rear direction This can be solved by providing a fixing device for a membrane ceiling, characterized in that it can be adjusted in the front-rear direction.

  Here, the terms “rear” and “front” in the description of “rear side”, “front”, “front-rear direction” and the like above indicate the relative positional relationship of each part in the membrane ceiling fixture. It is just what was used and does not limit the direction in which the membrane ceiling fixture is used. The phrase “rear” or “front” merely represents the relative positional relationship of each part of the membrane ceiling fixture, and other descriptions (however, “the above”, etc.) The same applies to the case except for those not shown). Similarly, the terms “lower” and “up” in the descriptions such as “lower end”, “downward”, and “vertical direction” below also indicate the relative positional relationship of each part in the membrane ceiling fixture. It is merely used to represent, and does not limit the direction in which the membrane ceiling fixture is used. The words “below” and “above” merely represent the relative positional relationship of each part in the membrane ceiling fixture. The same applies to the case except for those not shown).

  In this way, by making it possible to adjust the position for fixing the edge portion of the membrane material to the second portion in the front-rear direction, in one membrane ceiling fixture, the other membrane material in one membrane material The edge portion of the portion arranged in an overlapping state and the edge portion of the portion arranged in an overlapping state with the one film material in the other film material in the front-rear direction so as not to interfere with each other It becomes possible to shift and fix. Therefore, it is possible to easily fix the overlapping portions of the plurality of membrane materials forming the membrane ceiling to one membrane ceiling fixture.

The above issues are
A membrane ceiling fixture for fixing an edge of a membrane material forming a membrane ceiling to a structural frame of a building,
A first part whose rear side is fixed to the structural frame of the building;
A second portion provided to project forward from the first portion;
It has a film material fixing hole for inserting and fixing a shaft attached to the edge of the film material, and the lower end of the shaft can be hung around the edge of the film material. A third part provided downward from the front end of the two parts;
Have
Position for fixing the edge of the film material via the shaft body by forming the fixing holes for the film material in the shape of an elongated hole extending in the vertical direction or by forming a plurality of holes at predetermined intervals in the vertical direction This can also be solved by providing a fixing device for a membrane ceiling, characterized in that it can be adjusted in the vertical direction.

  As described above, by allowing the position for fixing the edge of the film material to the third portion to be adjusted in the vertical direction, in one film ceiling fixture, the other film material in one film material The edge portion of the portion arranged in an overlapping state and the edge portion of the portion arranged in an overlapping state with the one film material in the other film material are vertically arranged so as not to interfere with each other. It becomes possible to shift and fix. Therefore, it is possible to easily fix the overlapping portions of the plurality of membrane materials forming the membrane ceiling to one membrane ceiling fixture.

  As described above, in the film ceiling fixture of the present invention, the portion for fixing the edge of the membrane material can be adjusted in the front-rear direction in the second portion, and the edge of the membrane material There are two types, one in which the portion for fixing the part can be adjusted in the vertical direction in the third part. In the following, the former membrane ceiling fixture may be referred to as a “front-rear adjustment type membrane ceiling fixture”, and the latter membrane ceiling fixture may be referred to as a “vertical adjustment type membrane ceiling fixture”. . Configuration related to front / rear adjustment type membrane ceiling fixture (long hole-shaped membrane material fixing hole extending in the front / rear direction is provided in the second part, or a plurality of film material fixing holes are provided in the second part in the front / rear direction And a configuration according to a vertical adjustment type membrane ceiling fixture (providing an elongated hole-shaped membrane material fixing hole extending in the vertical direction in the third portion, or in the third portion A configuration in which a plurality of fixing holes for membrane material are provided at predetermined intervals in the vertical direction) may be simultaneously adopted in one membrane ceiling fixture. The membrane ceiling fixture in this case has the characteristics of both the front / rear adjustment type membrane ceiling fixture and the vertical adjustment type membrane ceiling fixture. Hereinafter, this membrane ceiling fixture may be referred to as a “composite type membrane ceiling fixture”.

Furthermore, the above problem is
A method for constructing a membrane ceiling using the above-mentioned front and rear adjustment type membrane ceiling fixture, a vertical adjustment type membrane ceiling fixture, or a composite type membrane ceiling fixture,
Fixing each first portion of the plurality of membrane ceiling fixtures arranged in rows at predetermined intervals to the structural frame of the building;
In the state where the vicinity of the edge of the membrane material is hung around the lower end portion of the third portion in each membrane ceiling fixture,
The problem can also be solved by providing a method for constructing a membrane ceiling, characterized in that a shaft body attached to an edge of the membrane material is inserted into and fixed to the membrane material fixing hole.

In the construction method of the membrane ceiling of the present invention,
The edge of the overlapping part of each adjacent film material while arranging a plurality of film materials along the arrangement direction of the film ceiling fixture and overlapping the vicinity of the side edge of the adjacent film material Fixing the part to a common membrane ceiling fixture,
In the membrane material fixing hole of the common membrane ceiling fixture, it is preferable that the shaft body attached to the edge of each membrane material is fixed while being shifted in the front-rear direction or the vertical direction.

  The membrane ceiling construction method of the present invention can be suitably implemented using the above-mentioned longitudinal adjustment type membrane ceiling fixture, vertical adjustment type membrane ceiling fixture, or composite type membrane ceiling fixture. It has become a thing.

  As described above, according to the present invention, overlapping portions of a plurality of membrane materials forming a membrane ceiling can be easily fixed with one membrane ceiling fixture. Such a membrane ceiling fixture can also provide a method for constructing the membrane ceiling.

It is the perspective view which showed the state which constructed the membrane ceiling using the fixture for membrane ceilings which concerns on this invention. It is the figure which showed the state which looked at the state which constructed the membrane ceiling using the fixture for membrane ceilings concerning this invention from the y-axis direction negative side in FIG. It is the figure which showed the state which looked at the state which constructed the membrane ceiling using the fixture for membrane ceilings concerning this invention from the z-axis direction positive side in FIG. The membrane material of FIG. 3 is a sectional perspective view showing a state taken along a X ₁ -X ₁ side in FIG. It is the perspective view which showed the fixture for membrane ceilings which concerns on this invention. It is the figure which showed the state which looked at the fixing tool for membrane ceilings of FIG. 5 from the y-axis direction negative side in the figure. It is the figure which showed the state which looked at the fixing tool for membrane ceilings of FIG. 5 from the z-axis direction positive side in the figure. It is the figure which showed the state which looked at the fixing tool for membrane ceilings of FIG. 5 from the x-axis direction positive side in the figure.

  The membrane ceiling fixture of the present invention and the method of constructing the membrane ceiling of the present invention using the membrane ceiling fixture will be described more specifically with reference to the drawings. In the following, for convenience of explanation, a description will be given by taking as an example a composite type membrane ceiling fixture that combines the features of both a front and rear adjustment type membrane ceiling fixture and a vertical adjustment type membrane ceiling fixture. However, the content described below is not limited to the composite type film ceiling fixture, and can be suitably employed in a front and rear adjustment type membrane ceiling fixture and a vertical adjustment type membrane ceiling fixture.

1. Membrane Ceiling Construction Method First, the membrane ceiling construction method will be described. FIG. 1 is a perspective view showing a state in which a membrane ceiling is constructed using a membrane ceiling fixture 10 according to the present invention. In FIG. 1, for convenience of illustration, two membrane ceiling fixtures 10 (which are arranged between membrane ceiling fixtures 10 shown in FIG. 3 described later) that support the edge portions of the membrane material 100 that do not overlap each other. Two membrane ceiling fixtures 10) are shown, and other membrane ceiling fixtures 10 are not shown. Further, in FIG. 1, for convenience of illustration, a part of the second part 12 and a part of the third part 13 in the membrane ceiling fixture depicted on the left side as viewed in the drawing are broken. FIG. 2 is a view showing a state in which the membrane ceiling is constructed using the membrane ceiling fixture 10 according to the present invention as viewed from the y-axis direction negative side in FIG. FIG. 3 is a diagram showing a state in which the membrane ceiling is constructed using the membrane ceiling fixture 10 according to the present invention as seen from the positive side in the z-axis direction in FIG. 3, for convenience of illustration, three membrane ceiling fixtures 10 (two membrane ceiling fixtures shown in FIG. 1 described above) that support the edge of the overlapping portion (overlap portion A) of the membrane material 100 are shown. 10, and other membrane ceiling fixtures 10 (for example, the edges of the non-overlapping portions of the membrane material 100 shown in FIG. 1 described above). The membrane material fixing tool 10) for supporting the part is not shown. 4 is a cross-sectional perspective view showing a state in which the film material 100 of FIG. 3 is cut along the X ₁ -X ₁ plane in FIG. In FIG. 4, for convenience of illustration, the thickness of the film material 100 (thickness in the z-axis direction) and the width of the overlapping portion A (width in the y-axis direction) are schematically drawn with emphasis over actuality. Yes.

  The method for constructing the membrane ceiling according to the present embodiment includes a membrane ceiling fixing step, a hanging guide fixing step, an attachment attaching step, a membrane material fixing step, and a tension adjustment step, which will be described later. It is to be constructed. Hereinafter, each step will be described in detail. However, the steps are not necessarily performed in the order described below, and the order can be changed as long as the membrane ceiling can be constructed. For example, the membrane ceiling fixture fixing step and the hanging guide fixing step may be reversed in order, and the attachment mounting step may be performed before the membrane ceiling fixture fixing step.

1.1 Membrane Ceiling Fixture Fixing Step The membrane ceiling fixture fixing step is performed in each of the plurality of membrane ceiling fixtures 10 with respect to the structural frame 200 of the building as shown in FIGS. 1 and 3. This is a step of fixing the portions 11 in a row at a predetermined interval. In FIG. 1 and FIG. 3, only the structure housing 200 on one side (the negative side in the x-axis direction) is depicted, but another structure on the other side (the positive side in the x-axis direction) opposite to the structure housing 200 on this one side. There is a housing 200, and a plurality of membrane ceiling fixtures 10 are similarly fixed to the other structural housing 200. The membrane ceiling fixture 10 (hereinafter sometimes referred to as “one side membrane ceiling fixture”) fixed to the structural housing 200 on one side is one side (the negative side in the x-axis direction) of the membrane material 100. ) And the membrane ceiling fixture 10 (hereinafter, referred to as “other membrane ceiling fixture” in some cases). Is used to fix the other edge (positive side in the x-axis direction) of the film material 100. Usually, the membrane ceiling fixture 10 on one side and the membrane ceiling fixture 10 on the other side are arranged to face each other so as to correspond one-to-one. In the following, the method for constructing the membrane ceiling will be described by taking the one-side membrane ceiling fixture 10 as an example, but the other-side membrane ceiling fixture 10 is also the same as the one-side membrane ceiling fixture 10. It can be constructed in the same way.

The pitch (pitch in the y-axis direction) for fixing the membrane ceiling fixture 10 to the structural housing 200 varies depending on the weight of the membrane ceiling fixture 10 and the weight of the membrane material 100 used, and is not particularly limited. . However, if the pitch for fixing the membrane ceiling fixture 10 is made too narrow, the number of membrane ceiling fixtures 10 to be used increases and the weight per unit area of the ceiling increases. In particular, in the revised Building Standard Law enforcement example enforced in April 2014, if the weight per unit area of the ceiling exceeds ² kg / m ² , there is a risk of causing serious harm by dropping It is necessary to take measures against falling out of the ceiling as stipulated by the law. For this reason, the membrane ceiling fixture 10 includes the membrane material 100 and other members (the hanging guide 20, the attachment 30, the structural frame fixing member 51, and the hanging guide fixing member 52 described later) The weight per unit area is preferably fixed at a pitch of ² kg / m ² or less. On the other hand, if the pitch for fixing the membrane ceiling fixture 10 is too wide, a loose portion is likely to occur at the edge of the membrane material 100, and wrinkles and the like are likely to be formed in the membrane material 100 after construction. For this reason, the pitch for fixing the membrane ceiling fixture 10 is preferably 2 m or less, and more preferably 1 m or less. In the present embodiment, one edge of one film material 100 having a lateral width (y-axis direction width) of 2 m is fixed to four film ceiling fixtures 10 arranged at an equal pitch. The pitch for fixing the membrane ceiling fixture 10 is less than 70 cm.

  By the way, as the structural housing 200 for fixing the membrane ceiling fixture 10, wall materials, column materials, beam materials, and the like are exemplified. In this embodiment, the structural housing 200 for fixing the membrane ceiling fixture 10 is a wall material that forms the inner wall of the building, and the first portion 11 of the membrane ceiling fixture 10 is provided on the indoor side surface of the wall material. Is fixed. The method for fixing the first portion 11 of the membrane ceiling fixture 10 to the structural housing 100 is not particularly limited. In the present embodiment, as shown in FIG. 2, the structural casing fixing member 51 is inserted into the structural casing fixing hole 11 a provided in the first portion 11 of the membrane ceiling fixing apparatus 10, whereby the membrane ceiling fixing apparatus 10. The first portion 11 is fixed to the structural housing 100. The type of the structural housing fixing member 51 is not particularly limited, but in this embodiment, a bolt, a nut, and a washer are used. Furthermore, in this embodiment, the arrangement direction of the membrane ceiling fixture 10 is parallel to the horizontal plane (parallel to the y-axis direction) so that the membrane material 100 after construction is stretched substantially horizontally. In addition, the membrane ceiling fixture 10 on one side and the membrane ceiling fixture 10 on the other side are arranged at the same height, but depending on the construction mode of the membrane ceiling, the membrane ceiling fixture 10 The arrangement direction may be non-parallel to the horizontal plane (xy plane), and the membrane ceiling fixture 10 on one side and the membrane ceiling fixture 10 on the other side are arranged at different heights. May be.

1.2 Hanging guide fixing step The hanging guide fixing step is a step of fixing the hanging guide 20 to the lower end portion of the third portion 13 of the membrane ceiling fixture 10 as shown in FIGS. It is. The hanging guide 20 is arranged in parallel to the arrangement direction (y-axis direction) of the membrane ceiling fixture 10 and is in a state of being spanned over the respective third members 13 in the plurality of membrane ceiling fixtures 10. It is attached. As shown in FIG. 1 and FIG. 2, the wrapping guide 20 hangs around the edge of the film material 100 around its outer peripheral portion, so that no wrinkles are formed on the film material 100. It is a member that functions as a guide for folding the end edge upward.

  As long as the hanging guide 20 can exhibit the above-described function, the type of member used for the hanging guide 20 is not particularly limited. However, if a hollow columnar member is used, the hanging guide 20 can be reduced in weight and per unit area of the ceiling. It becomes possible to reduce the weight. In the present embodiment, a grooved steel material (so-called channel steel material) having a C-shaped cross section is used as the guide 20. The method for fixing the guide 20 around the third portion 13 of the membrane ceiling fixture 10 is not particularly limited. In this embodiment, as shown in FIG. 2, the hanging guide 20 is hooked on the third portion 13 by inserting the guiding fixing member 52 through the hanging guide fixing hole 13 b provided in the third portion 13. It is fixed. The type of the hanging guide fixing member 52 is not particularly limited, but in this embodiment, a bolt, a nut, and a washer are used. The hanging guide 20 may be constituted by a single continuous columnar member. However, when the lateral width (width in the y-axis direction) of the surface on which the membrane ceiling is constructed is long, a plurality of columnar members are joined. You may comprise.

By the way, the kind of the material of the film | membrane material 100 which forms a film | membrane ceiling is not specifically limited, The various sheet materials which have the tensile strength and flexibility which can be used as a film | membrane ceiling can be employ | adopted. The resin sheet can be suitably used as the film material 100. Especially, the resin sheet which coat | covered the base fabric which consists of glass fiber, a metal wire, etc. with a synthetic resin can be used suitably as the film | membrane material 100. FIG. However, if the weight per unit area of the film material 100 is too large, the weight per unit area of the ceiling also increases. Therefore, the film material 100, the weight per unit area, 3 kg / ^m preferably formed ² in the following materials, it is more preferable to form at 2 kg / ^{m 2} or less of the material, 1 kg / ^{m 2} or less of More preferably, it is made of a material. In the present embodiment, a resin sheet having a thickness of less than 1 mm, coated with a base fabric made of glass fiber, is used as the film material 100, and the weight per unit area of the film material 100 is about 0.5 kg. / M ² .

1.3 Attachment Attachment Step The attachment attachment step is a step of attaching the attachment 30 to the edge portion of the membrane material 100 as shown in FIGS. 1 and 2. In the method for constructing the membrane ceiling of the present embodiment, the edge of the membrane material 100 is, as will be described later, a membrane material fixing hole 12a provided in the second portion 12 of the membrane ceiling fixture 10, or When fixed to the film material fixing hole 13a provided in the third portion 13, the attachment 30 makes it easy to fix the edge of the film material 100 to the film material fixing hole 12a or the film material fixing hole 13a. It is for.

  If the attachment 30 can attach the shaft body 33 inserted into the membrane material fixing hole 12a or the membrane material fixing hole 13a in the membrane ceiling fixture 10 to the edge of the membrane material 100, A specific configuration is not limited. In this embodiment, as shown in FIG. 2, the attachment 30 includes a loop insertion member 31, a connecting member 32, a plurality of shaft bodies 33, and an adjustment member 34. The loop insertion member 31 is a rod-like member for insertion through a loop formed in the vicinity of the end edge portion of the membrane material 100. The connecting member 32 is a rail-like member for connecting the loop insertion member 31 and the shaft body 33. A first holding groove 32a for holding the loop insertion member 31 is provided on the side of the connecting member 32 where the loop insertion member 31 is provided, and on the side of the connection member 32 where the shaft body 33 is provided. A second holding groove 32b for holding the head 33b provided on the shaft body 33 is provided. As already described, the shaft 33 is a member that is inserted into the membrane material fixing hole 12a or the membrane material fixing hole 13a in the membrane ceiling fixture 10. In this embodiment, a bolt having a screw shaft portion 33 a having a thread groove cut on the outer peripheral surface and a head portion 33 b having an enlarged diameter is used as the shaft body 33. The shaft body 33 is provided so that the arrangement pitch (pitch in the y-axis direction) coincides with the pit that fixes the membrane ceiling fixture 10 to the structural housing 200. The adjusting member 34 is a member for adjusting the insertion depth of the shaft body 33 with respect to the membrane material fixing hole 12a or the membrane material fixing 13a. In the present embodiment, a nut that can be screwed into the screw shaft portion 33 a of the shaft body 33 is used as the adjustment member 34.

1.4 Film Material Fixing Process The film material fixing process includes a plurality of shaft bodies 33 attached to the edge portion of the film material 100 as shown in FIGS. 1 and 2. By inserting and fixing the membrane material fixing holes 12a provided in the respective second portions 12 of the membrane ceiling fixture 10 or the membrane material fixing holes 13a provided in the respective third portions 13 This is a step of fixing the edge portion of the membrane material 100 to the membrane ceiling fixture 10. In this embodiment, the shaft body 33 is inserted into the membrane material fixing hole 12a from one side (z-axis direction negative side) of the second portion 12 of the membrane ceiling fixture 10 and the second portion 12 is opposite ( The adjustment member 34 is screwed into the shaft body 33 protruding to the positive side in the z-axis direction, thereby fixing the edge portion of the membrane material 100 to the membrane ceiling fixture 10.

  By the way, depending on the construction situation or the like, it may be difficult to insert and fix the shaft body 33 into the membrane material fixing hole 12a of the second portion 12 in the membrane ceiling fixture 10, but in such a case The shaft member 33 may be inserted into and fixed to the membrane material fixing hole 13a of the third portion 13 of the membrane ceiling fixture 10. In other words, when it is difficult to insert and fix the shaft member 33 into the membrane material fixing hole 13a of the third portion 13 of the membrane ceiling fixture 10, the second portion of the membrane ceiling fixture 10 is fixed. The shaft member 33 may be inserted into and fixed to the membrane material fixing hole 12a of the portion 12. The membrane ceiling fixture 10 used in the present embodiment is of a composite type as described above, and the composite type membrane ceiling fixture 10 fixes the edge portion of the membrane material 100 in this way. The location to be changed can be changed according to the construction status.

  When the membrane ceiling is composed of a plurality of membrane materials 100, the above-described operation is performed for all the membrane materials 100. In this embodiment, as shown in FIG. 3, the membrane ceiling is formed by a plurality of membrane materials 100 (first membrane material 101, second membrane material 102, third membrane material 103, fourth membrane material 104...). To make up. Each film material 100 has a rectangular shape in plan view (a rectangular shape when viewed from the positive side in the z-axis direction), and has a strip shape that is elongated in the x-axis direction. Each membrane material 100 is provided in a state of being aligned in the arrangement direction (y-axis direction) of the membrane ceiling fixture 10 so as to be parallel to each other. At this time, one film material 100 and another film material 100 disposed next to the one film material 100 may be disposed so that a gap is formed between them. As shown in FIG. 4, the side edge portions (edge portions on both sides in the y-axis direction) of adjacent film materials 100 are arranged so as to overlap each other, and a gap is formed between the adjacent film materials 100. I'm trying not to be. A portion A in FIG. 4 shows a portion (overlapping portion) where adjacent film materials 100 overlap. The same applies to part A in FIG. In this way, by making the vicinity of the side edge portions of adjacent membrane materials 100 overlap, it is possible to continuously construct the membrane ceiling even when the membrane ceiling is constituted by a plurality of membrane materials 100. become. The width of the overlapping portion A (the width in the y-axis direction) is not particularly limited, but is usually about 5 to 50 cm, and preferably about 10 to 30 cm.

  When the membrane ceiling is constituted by a plurality of membrane materials 100 and the vicinity of the side edge portions of the adjacent membrane materials 100 is overlapped, one side edge portion of each membrane material 100 overlaps the upper side. In this case, it is preferable that the other side edge of the one film material 10 overlaps the lower side. In this embodiment, as shown in FIG. 4, in any film material 100, the side edge on the negative side in the y-axis direction overlaps the upper side, and the side edge on the positive side in the y-axis direction overlaps the lower side. I have to. This not only improves the appearance of the membrane ceiling, but also makes it easier for adjacent membrane materials 100 to adhere to each other at the overlapping portion B. Further, in this case, the side edge of the membrane material 100 that overlaps the lower side (the positive side in the y-axis direction) is far from the entrance of the room where the membrane ceiling is constructed (the upper side of the membrane material 100). It is preferable that the side edge portion on the side that overlaps (the negative side in the y-axis direction) be close to the inlet). This makes it difficult for a person who has entered the room from the entrance to notice the stepped portion in the overlapping portion A of the membrane material 100, thereby improving the appearance of the membrane ceiling.

  Moreover, in this embodiment, as shown in FIG. 3, the edge part of the overlap part A in each adjacent film | membrane material 100 is being fixed to the common fixture 10 for film | membrane ceilings. In other words, of the pair of overlapping portions A in one film material 100 (for example, the second film material 102), the membrane ceiling fixture 10 that fixes the edge of the overlapping portion A on the negative side in the y-axis direction is It is common with the fixture 10 for film | membrane ceilings which fixes the edge part of the overlapping part A of the y-axis direction positive side in other film | membrane materials (for example, 1st film | membrane material 101) distribute | arranged rather than the y-axis direction. The same applies to the membrane ceiling fixture 10 that fixes the edge portion of the overlapping portion A in the membrane material 100 other than these. In addition, in this embodiment, in the membrane material fixing hole 12a of the common membrane ceiling fixture 10, the shaft body 33 attached to the edge of each membrane material 100 is arranged in the front-rear direction (x-axis). Direction) and fixed. More specifically, of the pair of overlapping portions A in one film material 100 (for example, the second film material 102), the shaft body 33 provided at the edge of the overlapping portion A on the negative side in the y-axis direction is: The membrane ceiling fixture 10 is fixed to a location near the positive side in the x-axis direction of the membrane material fixing hole 12a, and is provided at the edge of the overlapping portion A on the positive side in the y-axis direction of the one membrane material 100. The shaft body 33 is fixed to a position close to the negative side in the x-axis direction of the film material fixing hole 12a of the film ceiling fixture 10, and is provided on the film material 100 other than the one film material 100. The same applies to the shaft body 33.

  For this reason, in this embodiment, the end edge portion of each overlapping portion A of one adjacent film material 100 and another film material 100 is fixed to a common film ceiling fixture 10. The shaft body 33 fixed to the edge portion of the other film material 100 is fixed to the same film material fixing hole 12a as the shaft body 33 fixed to the edge portion of the other film material 100. Nevertheless, the edge of one film material 100 and the edge of the other film material 100 should not interfere (more specifically, attached to the edge of one film material 100. The attachment 30 can be prevented from interfering with the attachment 30 attached to the edge of the other film material 100). By adopting a configuration in which the shaft body 33 attached to the edge portion of the film material 100 is fixed while being shifted in the front-rear direction (x-axis direction), any number of the film materials 100 can be arranged in the y-axis direction. is there. In the above description, the case where the shaft body 33 is fixed to the membrane material fixing hole 12a in the second portion 12 of the membrane ceiling fixture 10 while being shifted in the front-rear direction (x-axis direction) has been described. Even if the shaft body is fixed while being shifted in the vertical direction (z-axis direction) with respect to the film material fixing hole 13a in the third portion 13 of the fixture 10, the same effect can be obtained.

1.5 Tension adjustment step The tension adjustment step adjusts the tension of the membrane material 100 in which the edge portions on both sides thereof are fixed to the membrane ceiling fixture 10 in the membrane material fixing step. It is a process to do. At the stage where the membrane material fixing process has just been completed, the membrane material 100 is in a state where its center portion (center portion in the x-axis direction) is sagging and hangs down until the tension level reaches a desired level. The edge of the material 100 (the edge fixed to the membrane ceiling fixture 10) is pulled. When the ceiling membrane is composed of a plurality of membrane materials 100 and the vicinity of the side edge portions of the adjacent membrane materials 100 is superposed, the tension is adjusted in order from the membrane material 100 overlapping the upper side ( In this embodiment, the tension is adjusted in order from the film material 100 arranged on the positive side in the y-axis direction in FIG.

  The method for adjusting the tension of the film material 100 is not particularly limited. In the present embodiment, as already described with reference to FIG. 2, the attachment 30 attached to the edge of the membrane material 100 is composed of the loop insertion member 31, the connecting member 32, the shaft body 33, and the adjustment member 34. The shaft member 33 is a bolt and the adjustment member 34 is a nut. The adjustment member 34 (nut) is rotated in a predetermined direction with respect to the screw shaft portion 33a of the shaft member 33 (bolt) to adjust. By moving the member 34 (nut) to the side close to the head 33b in the screw shaft portion 33a of the shaft body 33 (bolt) (z-axis direction negative side), the edge of the membrane material 100 is moved upward (z-axis direction). The membrane material 100 is loosened by being pulled toward the positive side.

1.6 Uses When all the steps described above are completed, the membrane ceiling construction method of this embodiment is completed. The usage (building etc. to construct) of the membrane ceiling construction method of this embodiment is not particularly limited. However, if the membrane ceiling construction method of this embodiment is adopted, it is possible to easily construct a membrane ceiling excellent in earthquake resistance and safety. For this reason, the construction method of the membrane ceiling of this embodiment can be suitably adopted when constructing the ceiling of a building that requires high earthquake resistance and safety. Moreover, if the construction method of the membrane ceiling of this embodiment is employ | adopted, it is also possible to construct the membrane ceiling excellent in design property easily. For this reason, the construction method of the membrane ceiling of this embodiment can be suitably employed also when constructing a ceiling that requires design properties. The construction method of the membrane ceiling of this embodiment is not only for constructing the membrane ceiling in a large space in a relatively large building such as a gymnasium, indoor pool, hall or station, but also a relatively small scale such as a general house. Even when a membrane ceiling is constructed in a small space in a building, it can be suitably employed. In particular, the fact that the ceiling in a school classroom is being replaced with a membrane ceiling has already been described, but the method for constructing a membrane ceiling in this embodiment is also suitably employed when constructing a membrane ceiling in a classroom. be able to. Moreover, the membrane ceiling construction method of this embodiment is suitably used not only when constructing a membrane ceiling in a room in a building as described above, but also when constructing a membrane ceiling (membrane roof) outdoors. be able to.

2. Next, the membrane ceiling fixture 10 used in the above-described membrane ceiling construction method will be described. As already described, the membrane ceiling fixture 10 of the present embodiment is a composite type having both the features of the front and rear adjustment type and the vertical adjustment type. FIG. 5 is a perspective view showing the membrane ceiling fixture 10 according to the present invention. In the perspective view of FIG. 5, for convenience of drawing, the rounded portion and the chamfered portion at the corner are omitted. FIG. 6 is a view showing a state in which the membrane ceiling fixture 10 of FIG. 5 is viewed from the negative side in the y-axis direction in FIG. FIG. 7 is a view showing a state in which the membrane ceiling fixture 10 of FIG. 5 is viewed from the positive side in the z-axis direction in FIG. FIG. 8 is a view showing a state in which the membrane ceiling fixture 10 of FIG. 5 is viewed from the positive side in the x-axis direction in FIG.

  As shown in FIG. 5, the membrane ceiling fixture 10 of the present embodiment includes a first portion 11 and a second portion 12 provided to project forward from the first portion 11 (in the x-axis direction positive side in the figure). , And a third portion 13 provided downward from the front end portion (the end portion on the positive side in the x-axis direction) of the second portion (in the direction facing the negative side in the z-axis direction in FIG. 6). As shown, the side view shape (the shape seen from the negative side in the y-axis direction) is an inverted L-shape. The material of the membrane ceiling fixture 10 is not particularly limited as long as it has a required strength, but is usually a metal material. The membrane ceiling fixture 10 of this embodiment is also formed of a metal material. Specifically, the first portion 11 is formed of a steel plate, the second portion 12 and the third portion 13 are formed of channel steel having a C-shaped cross section, and the first portion 11, the second portion 12, and the second portion. The film ceiling fixture 10 is formed by welding the 12 and the third portion 13 together (welding at a portion drawn by painting black in a triangular shape in FIGS. 6 and 7).

  The first portion 11 is a portion for fixing the membrane ceiling fixture 10 to the building structural body 200 (see FIG. 1). As already described, the method for fixing the first portion 11 to the structural housing 200 is not particularly limited, but in this embodiment, as shown in FIG. 5, both end portions (ends on the positive side in the y-axis direction) of the first portion 11 are used. A pair of structural housing fixing holes 11a are provided in the vicinity of the end portion on the negative side in the y-axis direction. For this reason, as shown in FIG. 2, the structural ceiling fixing member 51 (see FIG. 2) is inserted into the structural housing fixing hole 11 a so that the membrane ceiling fixture 10 can be fixed to the structural housing 200. ing.

  As shown in FIG. 2, the second portion 12 is a portion for fixing the end edge portion of the film material 100 wound around the lower end portion of the third member 13 (more precisely, the lower end of the third member 13. A portion for fixing the shaft body 33 of the attachment 30 attached to the end edge portion of the film material 100 hung on the hung guide 20 fixed to the portion. For this reason, a film material fixing hole 12 a is formed in the second portion 12. In the film material fixing hole 12a, the position where the shaft body 33 of the attachment 30 is fixed can be adjusted in the front-rear direction (x-axis direction in FIG. 2). In the membrane ceiling fixture 10 of the present embodiment, the membrane material fixing hole 12a is formed in the shape of a long hole extending in the front-rear direction (x-axis direction in the figure) as shown in FIG. A plurality of film material fixing holes 12a may be provided at predetermined intervals in the direction (in this case, each film material fixing hole 12a does not need to be elongated).

Length L _{1 of} film material fixing hole 12a (see FIG. 7) When a plurality of film material fixing holes 12a are provided at predetermined intervals in the front-rear direction, they are arranged on the most negative side in the x-axis direction. The distance from the end on the negative side in the x-axis direction of the fixing hole for film material 12a to the end on the positive side in the x-axis direction of the fixing hole for film material 12a arranged on the most positive side in the x-axis. The body 33 is not particularly limited as long as it is twice or more the outer diameter of the screw shaft portion 33a. However, the length L ₁ of the film member for fixing hole 12a is better to long, but white regulation fixing portion of the shaft 33 increases with respect to the film material for a fixing hole 12a. Therefore, the length L ₁ of the film member for fixing hole 12a is preferably set to at least 4 times the outer diameter of the screw shaft portion 33a, and more preferably to 8 times or more. On the other hand, the length L ₁ of the film member for fixing hole 12a is also too long, only the second portion 12 becomes large, so there is no merit. Therefore, the length L ₁ of the film member for fixing hole 12a is usually more than 20 times the outer diameter of the screw shaft portion 33a. Here, the contents described for the length L ₁ of the film member for fixing hole 12a is formed in a long hole shape extending the membrane material for a fixing hole 13a provided in the third portion 13 to be described later in the vertical direction (z-axis direction) This is also true in some cases. In film ceiling fixture 10 of the present embodiment, while the outer diameter of the threaded shaft portion 33a is 6 mm, the length _{L 1} of the film member for fixing hole 12a is 78mm (outer diameter of the screw shaft portion 33a 13 Times).

  As shown in FIG. 2, the third portion 13 is a portion (more precisely, the film material 100) that hangs around the lower edge (end on the negative side in the z-axis direction) of the edge of the film material 100. This is a portion for fixing the wrapping guide 20 that hangs around the edge of the rim. As already described, the method for fixing the hanging guide 20 with respect to the third portion 13 is not particularly limited, but in this embodiment, as shown in FIG. Is provided with a guide hole 13b for winding guide. For this reason, as shown in FIG. 2, the hanging guide 20 can be fixed to the third portion 13 by inserting the hanging guide fixing member 52 and inserting it through the guide fixing hole 13 b.

The length L ₂ (see FIG. 6) of the portion protruding below the second portion 12 in the third portion 13 is not particularly limited. However, too short a length L _2, a space capable of pulling the edge portion of the film member 100 is reduced, there may become difficult to perform the above-described tension adjustment step. As will be described later, the film portion fixing hole 13a is provided in the third portion 13, but there is a possibility that the space for providing the film material fixing hole 13a in the third portion 13 may be lost. Therefore, the length _{L 2} is preferably to be at least 50mm, more preferably, to 100mm or more, still more preferably 130mm or more. On the other hand, the length L ₂ is also too long, only the third portion 13 becomes large, so there is no merit. Therefore, the length _{L 2} is typically less 300 mm, it is preferably not more than 200 mm. In film ceiling fixture 10 of the present embodiment, the length _{L 2} has a 153 mm.

  In addition, since the membrane ceiling fixture 10 of the present embodiment is of a composite type, the third portion 13 is a portion for fixing the edge of the membrane material 100 (more precisely, the third member). 13 also functions as a portion for fixing the shaft body 33 of the attachment 30 attached to the edge of the membrane material 100 that is wound around the hanging guide 20 that is fixed to the lower end portion of 13. . For this reason, as shown in FIG. 8, a film material fixing hole 13 a is formed in the third portion 13. In the film material fixing hole 13a, the position where the shaft body 33 of the attachment 30 is fixed can be adjusted in the vertical direction (z-axis direction). In the membrane ceiling fixture 10 of the present embodiment, a plurality of membrane material fixing holes 13a are formed at a predetermined interval in the vertical direction, but extend in the vertical direction (x-axis direction in the figure). It may be formed in a hole shape (in this case, it is not necessary to form a plurality of film material fixing holes 13a).

  When the plurality of film material fixing holes 13a are provided in the third portion 13, the number of the film material fixing holes 13 is not particularly limited as long as it is two or more. However, if the number of the film material fixing holes 13a is increased, the fixing position of the shaft body 33 with respect to the film material fixing holes 13a can be adjusted in multiple stages. For this reason, the number of fixing holes 13a for membrane material is preferably 3 or more, and more preferably 4 or more. On the other hand, if the number of the film material fixing holes 13a is too large, the third portion 13 needs to be enlarged, which is not very advantageous. Therefore, the number of membrane material fixing holes 13a is usually 20 or less, preferably 10 or less. Here, the description about the number of the film material fixing holes 13a is also applicable to the case where a plurality of film material fixing holes 12a are provided in the second portion 12 described above. In the membrane ceiling fixture 10 of this embodiment, the number of membrane material fixing holes 13a is four.

  The membrane ceiling fixture 10 described above is capable of adjusting the position for fixing the edge of the membrane material 100 in both the front-rear direction and the vertical direction. It can be used suitably. Although the composite type membrane ceiling fixture 10 has been described above, the membrane material fixing hole 13a of the third portion 13 in the composite type membrane ceiling fixture 10 is eliminated, and the membrane material is provided only in the second portion 12. If the fixing hole 12a is provided, it becomes a front / rear adjustment type membrane ceiling fixture, and the membrane part fixing hole 12a of the second portion 12 in the composite type membrane ceiling fixture 10 is eliminated, so that only the third portion 13 is provided. When the film material fixing hole 13a is provided, an up-down adjustment type film material fixing tool is obtained.

DESCRIPTION OF SYMBOLS 10 Membrane ceiling fixture 11 First part 11a Structural frame fixing hole 12 Second part 12a Membrane material fixing hole 13 Third part 13a Membrane material fixing hole 13b Hanging guide fixing hole 20 Hanging guide 30 Attachment 31 Loop Insertion member 32 Connecting member 32a First holding groove 32b Second holding groove 33 Shaft body 33a Screw shaft portion 33b Head 34 Adjusting member 51 Structural housing fixing member 52 Hanging guide fixing member 100 Film material 101 First film material 102 Second Membrane material 103 Third membrane material 104 Fourth membrane material 200 Wall material (building structure)
A Overlapping part L ₁ Length of fixing hole for membrane material

Claims (4)

A membrane ceiling fixture for fixing an edge of a membrane material forming a membrane ceiling to a structural frame of a building,
A first part whose rear side is fixed to the structural frame of the building;
A film material fixing hole for inserting and fixing a shaft attached to the edge of the film material, and a second part provided to protrude forward from the first part;
A third part provided downward from the front end of the second part so that the lower end part can be hung around the edge of the film material,
Have
Position for fixing the edge of the film material via the shaft body by forming a plurality of film material fixing holes in the shape of a long hole extending in the front-rear direction, or by forming a plurality of holes at predetermined intervals in the front-rear direction. Membrane ceiling fixtures that can be adjusted in the front-rear direction. A membrane ceiling fixture for fixing an edge of a membrane material forming a membrane ceiling to a structural frame of a building,
A first part whose rear side is fixed to the structural frame of the building;
A second portion provided to project forward from the first portion;
It has a film material fixing hole for inserting and fixing a shaft attached to the edge of the film material, and the lower end of the shaft can be hung around the edge of the film material. A third part provided downward from the front end of the two parts;
Have
Position for fixing the edge of the film material via the shaft body by forming the fixing holes for the film material in the shape of an elongated hole extending in the vertical direction or by forming a plurality of holes at predetermined intervals in the vertical direction A fixture for a membrane ceiling, characterized in that it can be adjusted in the vertical direction. A method for constructing a membrane ceiling using the membrane ceiling fixture according to claim 1 or 2,
Fixing each first portion of the plurality of membrane ceiling fixtures arranged in rows at predetermined intervals to the structural frame of the building;
In the state where the vicinity of the edge of the membrane material is hung around the lower end portion of the third portion in each membrane ceiling fixture,
A method for constructing a membrane ceiling, comprising: fixing a shaft body attached to an edge of the membrane material by inserting the shaft body into a fixing hole for the membrane material. The edge of the overlapping part of each adjacent film material while arranging a plurality of film materials along the arrangement direction of the film ceiling fixture and overlapping the vicinity of the side edge of the adjacent film material Fixing the part to a common membrane ceiling fixture,
The construction of the membrane ceiling according to claim 3, wherein in the membrane material fixing hole of the common membrane ceiling fixture, the shaft body attached to the edge portion of each membrane material is fixed while being shifted in the front-rear direction or the vertical direction. Method.

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