JP6782144B2 - Field edge fixing member, suspended ceiling structure and construction method of suspended ceiling structure - Google Patents

Description

In the present invention, in a suspended ceiling structure suspended from a building structure, a field edge fixing member for fixing a field edge portion interposed between the suspension material and the ceiling surface material, and a suspension to which the field edge fixing member is attached. It relates to a ceiling structure and a method of constructing a suspended ceiling structure.

Suspended ceiling structure in which a ceiling surface material formed of gypsum board or the like is supported on a ceiling base consisting of a field edge holder and a field edge suspended from a building structure such as a floor slab or a beam on the upper floor by a hanging bolt. Is known (see Patent Documents 1 and 2 and the like).

In Patent Document 1, in order to obtain a suspended ceiling in which the number of members is reduced as much as possible, the cross section of the field edge receiver suspended from the hanging bolt via a hanger is made into a highly rigid shape, and instead of the normal field edge. It is configured to use a holding member on which a flange is formed.

Further, in Patent Document 2, it is possible to absorb and suppress vibration and displacement at the time of an earthquake by attaching a field edge rail directly to a hanging bolt and passing a viscoelastic ceiling plate between the field edge rails. A viscoelastic ceiling is disclosed.

Japanese Unexamined Patent Publication No. 2014-25338 Japanese Unexamined Patent Publication No. 2013-241827

As described above, the suspended ceiling structure has been conventionally implemented and various improvements and developments have been made, but it is desired to develop a structure that requires a small number of parts, is excellent in workability, and can be reduced in weight.

Therefore, the present invention is a field edge fixing member capable of reducing the number of required parts and reducing the weight of the suspended ceiling structure by directly attaching to the hanging material and directly receiving the end of the field edge. , And a method of constructing a suspended ceiling structure and a suspended ceiling structure to which it is attached.

In order to achieve the above object, the field edge fixing member of the present invention is a field edge portion interposed between the suspension material and the ceiling surface material in a suspended ceiling structure suspended from a building structure by a suspension material. A long strip-shaped fixing portion for fixing the lower ends of a plurality of hanging members arranged at intervals through holes, and both sides of the strip-shaped fixing portion. A pair of side wall portions connected to the edge, a pair of mounting surface portions for mounting the end portions of the field edge portions protruding outward from the lower edges of the pair of side wall portions, and the above-mentioned mounting. It is characterized in that an upper limiting portion is provided at an upper position separated from the surface portion by the height of the field edge portion so as to be substantially parallel to the above-mentioned mounting surface portion.

Here, it is preferable that the hole provided in the strip-shaped fixing portion is an elongated hole long in the axial direction of the strip-shaped fixing portion. Further, the upper limiting portion may be configured to be continuously provided above the above-mentioned mounting surface portion. On the other hand, the upper limiting portion may be configured to be provided at a position where the field edge portion is expected to be installed.

Further, at least a part of the strip-shaped fixing portion, the pair of side wall portions, and the pair of mounting surface portions may be integrally formed in a hat shape in cross section. Further, the strip-shaped fixing portion may be provided with an elongated hole through which the lower end portion of the hanging member is inserted.

The invention of the suspended ceiling structure is a suspended ceiling structure suspended from a building structure by a suspending material, and any of the above-mentioned field edge fixing members fixed to the lower end portion of the suspended material and the said field. A field edge portion in which an end portion is housed between the previously described mounting surface portion of the edge fixing member and the upper limiting portion, a ceiling surface material attached to the lower surface side of the field edge portion, and the field edge portion in front. It is characterized by being provided with a joining means for fixing to the described surface portion.

Here, the additional field edge portion may be arranged at a position where reinforcement is required, and the end portion of the additional field edge portion may be fixed to the above-mentioned mounting surface portion by the joining means.

Further, the invention of the method for constructing a suspended ceiling structure is a method for constructing a suspended ceiling structure in which the suspended ceiling structure is suspended from the structure of the building by a suspended material. The step of fixing the field edge fixing member through the holes of the band-shaped fixing portion according to any one of the above, and the end portion of the field edge portion arranged at intervals in the axial direction of the field edge fixing member. Is inserted between the above-mentioned mounting surface portion and the upper limiting portion, and the ceiling surface material is arranged with respect to the field edge portion whose both ends are inserted into the field edge fixing member. It is characterized by including a step of pushing the joining means from below the surface portion to join the field edge portion to the field edge fixing member.

In the field edge fixing member and the suspended ceiling structure of the present invention configured in this way, the strip-shaped fixing portion is fixed by passing the lower end portion of the hanging material suspended from the structure of the building through the hole, and the strip-shaped fixing portion is fixed. The end portion of the field edge portion is placed on the mounting surface portion overhanging from the pair of side wall portions connected to.

With respect to this mounting surface portion, an upper limiting portion is projected at an upper position separated by the height of the field edge portion, and the end portion of the field edge portion is sandwiched between the mounting surface portion and the upper limiting portion. Will be.

In this way, the field edge fixing member directly attached to the lower end of the hanging material is configured to directly receive the end of the field edge, so that the field edge is supported via a hanging hanger or a field edge receiving part. It is possible to reduce the number of required parts as compared with the case where the hanger is used. In addition, the weight of the suspended ceiling structure can be reduced by reducing the number of required parts.

Further, if the hole through which the lower end portion of the hanging material is inserted into the strip-shaped fixing portion is a long hole, the positions of the plurality of hanging materials and the field edge fixing member can be easily adjusted, and the workability is excellent. There is.

Further, if the upper limiting portion is continuously provided above the mounting surface portion, the field edge portion can be freely arranged at any position in the axial direction of the field edge fixing member. On the other hand, when the upper limiting portion is provided at a position where the field edge portion is expected to be installed at intervals, the area of the upper limiting portion can be significantly reduced, so that the weight can be reduced.

Further, if at least a part of the strip-shaped fixing portion, a pair of side wall portions, and a pair of mounting surface portions are integrally formed in a hat shape in cross section, the member is easily manufactured with high accuracy in addition to high rigidity. be able to.

Further, for the field edge fixing member, in addition to the normal field edge portion, an additional field edge portion can be easily arranged at a place where reinforcement is required. That is, if it is desired to provide an additional field edge at a place where lighting, attic equipment, etc. are arranged, the edge of the additional field edge can be placed on the mounting surface and fixed by a joining means to reinforce the surrounding area. be able to.

Further, in the invention of the method for constructing the suspended ceiling structure using the field edge fixing member, when the joining means is pushed from below the mounting surface portion with respect to the field edge portion whose both ends are inserted into the field edge fixing member, Even if the field edge part is about to rise, it is suppressed by the upper limiting part, so that the joining work can be easily performed.

It is sectional drawing explaining the structure of the suspended ceiling structure to which the field edge fixing member of embodiment of this invention is attached. It is a top view of the field edge fixing member. It is a perspective view for demonstrating the structure of the field edge fixing member of embodiment of this invention. It is a perspective view for demonstrating the process of the method of constructing the suspended ceiling structure of embodiment of this invention. It is a perspective view explaining the structure of the suspended ceiling structure of embodiment of this invention. It is a perspective view for demonstrating the structure of the field edge fixing member of Example 1. FIG. It is sectional drawing for demonstrating the structure of the field edge fixing member of Example 2. FIG. It is sectional drawing for demonstrating the structure of another field edge fixing member of Example 2. FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1A, 1B and 2 are views for explaining the configuration of the field edge fixing member 2 of the present embodiment, and FIGS. 1 and 4 explain the configuration of the suspended ceiling structure 1 to which the field edge fixing member 2 is attached. It is a figure for doing.

The suspended ceiling structure 1 is provided in various spaces of various buildings such as gymnasiums, assembly halls, public facilities serving as bases for disaster emergency measures, lobbies of condominiums and buildings, and conference rooms. In this embodiment, the suspended ceiling structure 1 constructed by new construction or renovation inside the building will be described.

As shown in FIGS. 1A and 4, hanging bolts 11, ... As a plurality of hanging materials are provided on the lower surface and beams (not shown) of the floor slab on the upper floor, which is the structure of the building, at intervals. Can be hung.

Then, the field edge fixing member 2 is hung directly from the lower end portion 111 of the hanging bolt 11. Here, the lower end portion 111 of the hanging bolt 11 refers to the vicinity of the end portion of the range in which the field edge fixing member 2 whose mounting position is adjusted up and down according to the height of the ceiling to be constructed is fixed.

The field edge fixing member 2 is a long member, and a ceiling base (steel base) is attached by attaching the field edge portion 13 in a direction substantially orthogonal to the field edge fixing member 2 at intervals in the axial direction. ) Is formed.

A ceiling surface material 14 such as a gypsum board is attached to the lower surface 132 side of the plurality of field edge portions 13, ... Arranged substantially in parallel. The ceiling surface material 14 is a finishing material that forms the ceiling surface, or a base plate material for attaching the finishing material.

The ceiling surface material 14 is usually composed of a plurality of plate materials, and in FIG. 1A, the edges of the adjacent plate materials are butted against each other at the center position of the field edge fixing member 2.

As shown in FIG. 1A, the field edge fixing member 2 of the present embodiment has a top surface portion 21 as a long strip-shaped fixing portion fixed to the lower end portion 111 of the hanging bolt 11, and an upper plate stacked directly above the top surface portion 21. A pair of side wall portions 22, 22 connected to the central portion of 24, both side edges of the top surface portion 21, and a pair of mounting surface portions projecting outward from the lower edges of the pair of side wall portions 22, 22, respectively. It is mainly composed of 23, 23 and upper limiting portions 241, 241 overhanging so as to be substantially parallel to the mounting surface portions 23, 23.

In the present embodiment, as shown in FIGS. 1A and 2, the field edge fixing member 2 is manufactured by joining the hat-shaped convex metal fitting 20 in cross-sectional view and the strip-shaped upper plate 24 by welding or the like. Will be done.

The upper plate 24 is installed so that the center in the width direction (direction orthogonal to the axis of the field edge fixing member 2) is aligned with the center position in the width direction of the top surface portion 21 of the convex metal fitting 20. The region directly above the top surface portion 21 of the upper plate 24 becomes an upper layer as a part of the strip-shaped fixing portion. Then, the area of the upper plate 24 protruding from the top surface portion 21 on both sides becomes the upper limiting portions 241,241.

On the other hand, the convex metal fitting 20 is a metal fitting in which a top surface portion 21 as a lower layer, a pair of side wall portions 22, 22 and a pair of mounting surface portions 23, 23 are integrally formed as a part of the band-shaped fixing portion. Specifically, the side wall portion 22 hangs downward at a substantially right angle from the side edge of the top surface portion 21, and the mounting surface portion 23 projects outward at a substantially right angle from the lower edge of the side wall portion 22.

As shown in FIG. 1B, the overhanging amount of the upper limiting portion 241 is shorter than the overhanging amount of the mounting surface portion 23. The mounting surface portion 23 is projected by a width that can support the end portion 131 of the field edge portion 13. By making the overhanging amount of the upper limiting portion 241 shorter than that of the mounting surface portion 23, it is possible to facilitate mounting the end portion 131 of the field edge portion 13 on the mounting surface portion 23 from above.

Since the field edge fixing member 2 needs to be very long depending on the size of the ceiling, it is added axially by the joint plate 26 as needed, as shown in FIG.

In FIG. 2, a joint plate 26 formed of a rectangular steel plate is straddled between the side wall portions 22 and 22 of the convex metal fittings 20 and 20 arranged in the axial direction, and the joint plates 26 are joined by screw members 261, ... An example is shown. The method of joining the field edge fixing member 2 is not limited to this example.

As shown in FIG. 1A, the upper limiting portion 241 is provided at an upper position separated by the height of the end portion 131 of the field edge portion 13 from the mounting surface portion 23. That is, the end portion 131 of the field edge portion 13 is sandwiched between the mounting surface portion 23 and the upper limiting portion 241.

The tip of the screw material 3 as a joining means driven from the lower surface of the ceiling surface material 14 is embedded in the end 131 of the field edge portion 13 housed between the mounting surface portion 23 and the upper limiting portion 241. ..

Here, a steel material such as a rectangular steel pipe having a substantially rectangular cross section as shown in FIG. 3 or a C-shaped steel having a substantially C-shaped cross section is used for the field edge portion 13. In short, a member in which a substantially parallel lower surface 132 and an upper surface 133 are formed is used.

On the other hand, the lower end portion 111 of the hanging bolt 11 is passed through an elongated hole 25 which is a hole provided through the upper plate 24 and the top surface portion 21, and is tightened to the nuts 12A and 12B mounted vertically. , It is fixed to the field edge fixing member 2.

Specifically, as shown in FIG. 1B, the upper plate 24 and the top surface portion 21 are perforated with an elongated hole 25 long in the axial direction of the field edge fixing member 2. Therefore, the position of the field edge fixing member 2 can be finely adjusted and fixed in the axial direction with respect to the position of the lower end portion 111 of the hanging bolt 11. Further, the height of the ceiling can be easily changed by adjusting the height position of tightening the nuts 12A and 12B with respect to the hanging bolt 11.

As shown in FIG. 3, the field edge fixing members 2, ... Suspended from the hanging bolts 11, ... At intervals substantially parallel to each other are spaced in the axial direction of the field edge fixing member 2. The field edges 13, ... Are laid in parallel with each other.

In the field edge portion 13, the end portions 131 and 131 on both sides are mounted on the mounting surface portions 23 and 23 of the field edge fixing members 2 and 2, respectively. Further, the adjacent field edge portions 13 are bridged so as to be continuous in the axial direction of the field edge portions 13. That is, a grid-like steel base (ceiling base) is formed by the field edge fixing members 2, ... And the field edge portions 13, ....

Here, even between the field edges 13 and 13 arranged in parallel, the additional field edge 15 can be arranged at a position requiring reinforcement (see the right side of FIG. 3). For example, an additional field edge portion 15 can be laid over for reinforcement at a location where a separate load acts, such as lighting or attic equipment. The end portion 151 of the additional field edge portion 15 is also fixed to the mounting surface portion 23 by the screw material 3.

Next, a method of constructing the suspended ceiling structure 1 of the present embodiment will be described with reference to FIGS. 1A and 1B and FIGS. 2 to 4.

First, as shown in FIG. 2, nuts 12A and 12B are used to fix the field edge fixing member 2 to the lower end 111 of the hanging bolt 11 suspended from the floor slab of the building.

Specifically, the lower end portion 111 of the hanging bolt 11 is passed through the elongated hole 25 of the upper plate 24 and the top surface portion 21 as shown in FIG. 1B with the nut 12A attached. By making the hole to be drilled in the strip-shaped fixing portion into the elongated hole 25 in this way, even when fixing one field edge fixing member 2 to a plurality of hanging bolts 11, ..., It is easy to make fine adjustments. Can perform fixing work.

Subsequently, as shown in FIG. 1A, the nut 12B is attached to the lower end portion 111 projecting downward from the top surface portion 21, and the tool is inserted from below the convex metal fitting 20 and tightened. Since the ceiling surface material 14 is not arranged at this stage, the tool can be inserted into the cavity between the side wall portions 22 and 22 from below.

Then, by tightening the upper and lower nuts 12A and 12B, the strip-shaped fixing portions (21, 24) of the field edge fixing member 2 are sandwiched, and the field edge fixing member 2 is firmly fixed to the hanging bolt 11.

When one side of the ceiling is long, as shown in FIG. 2, a plurality of field edge fixing members 2 and 2 are hung side by side so that the axial directions match, and the joint plate 26 is connected between the field edge fixing members 2 and 2. And the screw material 261 ...

Then, as shown in FIG. 3, a plurality of field edge portions 13, ... Are bridged in parallel between the field edge fixing members 2, 2 suspended in parallel. That is, the field edge portions 13 are arranged at intervals in the axial direction of the field edge fixing member 2, and the end portions 131, 131 on both sides are placed on the mounting surface portion 23 of the field edge fixing member 2.

Normally, adjacent field edge portions 13 are arranged so as to be continuous in the axial direction of the field edge portion 13, and a grid-like steel base is formed. Further, the additional field edge portion 15 can be arranged at a place where reinforcement is required such as a lighting mounting position. Further, although not shown, the axial directions of the adjacent field edges 13 and 13 may be shifted without being continuous in a place having an irregular shape such as near the edge of the ceiling.

As shown in FIG. 4, a ceiling surface material 14 such as a gypsum board is attached from below to the framework serving as the ceiling base suspended from the suspension bolts 11, ...

As shown in FIG. 1A, the ceiling surface material 14 is joined to the field edge portion 13 by a screw material 3 screwed from below. Further, at the end 131 of the field edge portion 13, the screw material 3 is screwed into the field edge portion 13 through the ceiling surface material 14 and the mounting surface portion 23. By attaching the ceiling surface material 14 in this way, the suspended ceiling structure 1 suspended from the structure of the building by the hanging bolts 11, ... Is completed.

Next, the operation of the field edge fixing member 2 of the present embodiment, the suspended ceiling structure 1 to which the field edge fixing member 2 is attached, and the method of constructing the suspended ceiling structure 1 will be described.

The field edge fixing member 2 of the present embodiment configured in this way fixes the top surface portion 21 of the field edge fixing member 2 to a hanging bolt 11 suspended from the structure of the building and connects to the top surface portion 21. The end portions 131, 131 of the field edge portion 13 are placed on the mounting surface portions 23, 23 overhanging from the pair of side wall portions 22, 22.

An upper limiting portion 241 is projected from the mounting surface portion 23 at an upper position separated by the height of the field edge portion 13, and the end portion 131 of the field edge portion 13 is separated from the mounting surface portion 23. It will be sandwiched between the upper limiting portion 241.

Since the field edge fixing member 2 directly attached to the hanging bolt 11 is configured to directly receive the end portion 131 of the field edge portion 13, the field edge receiving portion, a clip, or the like is used to directly receive the field edge portion 131. The number of required parts can be reduced as compared with the case where the edge is supported. Further, by reducing the number of required parts, the weight of the suspended ceiling structure 1 can be reduced.

Furthermore, if a hanging hanger that can only be hooked or a clip that can be fitted is used, the hanging hanger or clip may come off due to the influence of an external force such as an earthquake, and the ceiling base may fall off. If the structure is such that the suspension bolts 11 are fixed by the nuts 12A and 12B and the field edge portion 13 is joined by the screw material 3 as in the member 2, the occurrence of falling off can be reduced.

Further, if the upper limiting portion 241 is continuously provided above the mounting surface portion 23, the field edge portion 13 can be freely arranged at any position in the axial direction of the field edge fixing member 2.

For example, in places where lighting, attic equipment, etc. are placed, the load becomes large and reinforcement is required, so it is easy to place additional field edges 15 in addition to the normal field edges 13, ... Can be done. That is, the end portion of the additional field edge portion 15 may be placed on the mounting surface portion 23 at the position to be reinforced and fixed by the screw material 3.

In short, the field edge portion 13 or the additional field edge portion 15 can be installed anywhere where the upper limiting portion 241 is provided on the mounting surface portion 23 and fixed with the screw material 3 from below. Therefore, the arrangement pattern of the field edges 13, ... Can be freely set.

Further, the convex metal fitting 20 in which the top surface portion 21, the pair of side wall portions 22, 22 and the pair of mounting surface portions 23, 23 are integrally formed in a hat shape in cross-sectional view has high rigidity and is easily and highly accurate. Can be manufactured. That is, since the relative positional relationship between the top surface portion 21, the side wall portion 22, and the mounting surface portion 23 can be fixed, it is easy to manufacture and can be finished with high accuracy.

Further, if the upper plate 24 and the top surface portion 21 are provided with an elongated hole 25 through which the lower end portion 111 of the suspension bolt 11 is inserted, the position of the suspension bolt 11 and the position of the field edge fixing member 2 can be easily adjusted. And has excellent workability.

Then, in the invention of the method of constructing the suspended ceiling structure 1 using the field edge fixing member 2, the screw material 3 is formed from below the mounting surface portion 23 with respect to the field edge portion 13 whose both ends are inserted into the field edge fixing member 2. Even if the field edge portion 13 tries to rise when the screw is screwed in, the upper limit portion 241 suppresses the upper surface 133, so that the joining work and the attachment work of the ceiling surface material 14 can be easily performed.

Hereinafter, the field edge fixing member 2A of the first embodiment, which is different from the field edge fixing member 2 described in the above embodiment, will be described with reference to FIG. The same or equivalent parts as those described in the above-described embodiment will be described using the same terms or the same reference numerals.

In the above-described embodiment, the field edge fixing member 2 in which the strip-shaped upper plate 24 having the same axial length as the convex metal fitting 20 is joined to the top surface portion 21 has been described. In the first embodiment, a case where the upper limiting portions are provided at intervals will be described.

Here, the upper limiting portion is for exerting a stopper function for preventing the end portion 131 of the field edge portion 13 installed on the mounting surface portion 23 from being lifted by the force of the screw material 3 screwed from below. Will be installed in.

Therefore, it is not necessary in the place where the field edge portion 13 or the additional field edge portion 15 is not installed. Therefore, the weight can be reduced by providing the field edge portion 13 or the additional field edge portion 15 only at the position where the installation is expected. It can be a field edge fixing member 2A.

Specifically, the rectangular rectangular plates 24A are joined at intervals in the axial direction of the top surface portion 21. The regions on both sides of the rectangular plate 24A projecting from the top surface portion 21 in the width direction (axis orthogonal direction) are the upper limiting portions 241A and 241A.

In short, the upper limiting portions 241A and 241A are provided at intervals at positions where the field edge portion 13 or the additional field edge portion 15 is expected to be installed. For example, if rectangular plates 24A having an axial length of about 200 mm of the field edge fixing member 2A are installed at intervals of 200 mm, the intervals of the field edge portions 13 and 13 are various such as 300 mm, 600 mm, and 900 mm. Can be applied to.

With such a configuration, the area of the upper limiting portion 241A can be significantly reduced. That is, the strip-shaped upper plate 24 described in the above embodiment can be replaced with rectangular plates 24A, ... Provided at intervals, and the weight can be reduced.

Since the other configurations and effects of Example 1 are substantially the same as those of the above-described embodiment or other examples, description thereof will be omitted.

Hereinafter, the field edge fixing members 2B and 2C of the second embodiment different from the field edge fixing members 2 and 2A described in the above embodiment and the first embodiment will be described with reference to FIGS. 6 and 7. The same or equivalent parts as those described in the above-described embodiment or the first embodiment will be described using the same terms or the same reference numerals.

In the above-described embodiment or the first embodiment, a case where the upper limiting portion 241,241A is provided by attaching the upper plate 24 or the rectangular plate 24A to the upper surface of the top surface portion 21 has been described.

In the second embodiment, a case where the heights of the strip-shaped fixing portions 21B and 21C and the height of the upper limiting portion are different will be described. FIG. 6 shows the configuration of the field edge fixing member 2B provided at a position where the height of the strip-shaped fixing portion 21B is higher than the upper flanges 27 and 27 which are the upper limiting portions.

The field edge fixing member 2B includes a long strip-shaped fixing portion 21B fixed to the lower end portion 111 of the hanging bolt 11 and a pair of side wall portions 22B and 22B connected to both side edges of the strip-shaped fixing portion 21B. A pair of mounting surface portions 23B and 23B projecting outward from the lower edges of the side wall portions 22B and 22B, respectively, and an upper flange 27 extending so as to be substantially parallel to the mounting surface portions 23B and 23B. It is mainly composed of 27.

The upper flange 27 projects outward at a substantially right angle from the middle of the side wall portion 22B located above the mounting surface portion 23B. The overhanging amount of the upper flange 27 is shorter than the overhanging amount of the mounting surface portion 23B.

On the other hand, FIG. 7 shows the configuration of the field edge fixing member 2C provided at a position where the height of the band-shaped fixing portion 21C is lower than the upper flanges 28 and 28 which are the upper limiting portions.

The field edge fixing member 2C includes a long strip-shaped fixing portion 21C fixed to the lower end portion 111 of the hanging bolt 11 and a pair of side wall portions 22C and 22C connected to both side edges of the strip-shaped fixing portion 21C. A pair of mounting surface portions 23C, 23C projecting outward from the lower edges of the side wall portions 22C, 22C, and an upper flange 28, projecting so as to be substantially parallel to the mounting surface portions 23C, 23C. It is mainly composed of 28.

The band-shaped fixing portion 21C is bridged in the middle of the side wall portions 22C and 22C. Further, the upper flange 28 projects outward at a substantially right angle from the upper edge of the side wall portion 22C. The overhanging amount of the upper flange 28 is shorter than the overhanging amount of the mounting surface portion 23C.

In this way, in the field edge fixing members 2B and 2C, the positional relationship between the strip-shaped fixing portions 21B and 21C and the upper flanges 27 and 28 serving as the upper limiting portions can be freely adjusted.

By changing the relative positions of the strip-shaped fixing portions 21B and 21C in the height direction, the member heights of the field edge fixing members 2B and 2C can be adjusted. Further, in the case of the configuration of the field edge fixing member 2B, the protrusion amount of the lower end portion 111 of the suspension bolt 11 can be made longer than that of other members, so that the adjustment range of the ceiling height can be widened.

On the other hand, if the field edge fixing member 2C is used, the height of the member can be suppressed to be lower than that of other members, so that it can be applied even when there is no room in the ceiling space in the height direction.

Further, the band-shaped fixing portion 21B (21C), the pair of side wall portions 22B, 22B (22C, 22C), the pair of mounting surface portions 23B, 23B (23C, 23C), and the upper flanges 27, 27 (28, 28) are integrated. By molding it into a member, it can be made into a highly rigid member.

The other configurations and effects of Example 2 are substantially the same as those of the above-described embodiment or other examples, and thus the description thereof will be omitted.

Although the embodiments of the present invention have been described in detail with reference to the drawings, the specific configuration is not limited to the embodiments and the examples, and the design changes to the extent that the gist of the present invention is not deviated. Is included in the present invention.

For example, in the above-described embodiment and the embodiment, the suspended ceiling structure 1 suspended by the suspension bolts 11, ... Has been described, but the present invention is not limited to this, and the suspension is not limited to this, and the suspension wire or the like serves as a suspension material. It can also be applied to ceiling structures.

Further, in the above-described embodiment or the first embodiment, the field edge fixing members 2 and 2A manufactured by joining the upper plate 24 or the rectangular plate 24A to the convex metal fitting 20 have been described, but the present invention is not limited thereto. Absent. For example, instead of using an upper plate as a separate member, the upper limiting portion may be integrally projected from the upper edges of the pair of side wall portions having a hat shape in cross section.

Further, in the above-described embodiments and examples, the steel field edge fixing members 2, 2A, 2B, and 2C have been described, but the present invention is not limited to this, and the members are integrally molded with a synthetic resin material such as reinforced plastic. It may be a field edge fixing member.

Further, in the above-described embodiment, the configuration in which the upper plate 24 and the top surface portion 21 are provided with the elongated holes 25 and the lower end portion 111 of the suspension bolt 11 is inserted is described, but the present invention is not limited to this, and a circular hole is provided. It may be.

Further, in the above-described embodiment, the configuration in which the ceiling surface material 14 is arranged on the lower surface 132 side of the field edge portion 13 and the field edge portion 13 is fixed by the screw material 3 at the same time as the ceiling surface material 14 is fixed has been described. However, it is not limited to this. For example, the end portion 131 of the field edge portion 13 and the mounting surface portion 23 are joined in advance by the screw material 3, and the ceiling surface material is arranged on the lower surface 132 side of the fixed field edge portion 13. You can also do it.

Further, in the above-described embodiments and examples, the screw material 3 has been described as an example of the joining means, but the present invention is not limited to this, and nails, drill screws and the like can also be used as the joining means.

1 Suspended ceiling structure 11 Suspended bolts (suspended materials)
111 Lower end 12A, 12B Nut 13 Field edge 131 End 14 Ceiling surface material 15 Additional field edge 151 End 2 Field edge fixing member 20 Convex metal fitting 21 Top surface (lower layer of band-shaped fixing part)
22 Side wall part 23 Mounting surface part 24 Upper plate (upper layer of strip-shaped fixing part)
241 Upper limiting part 25 Long hole 3 Screw material (joining means)
2A Field edge fixing member 24A Rectangular plate 241A Upper limiting part 2B, 2C Field edge fixing member 21B, 21C Band-shaped fixing part 22B, 22C Side wall part 23B, 23C Mounting surface part 27, 28 Upper flange (upper limiting part)

Claims (6)

In a suspended ceiling structure suspended from a building structure by a hanging material, it is a field edge fixing member for fixing a field edge portion interposed between the hanging material and the ceiling surface material.
A long strip-shaped fixing portion for fixing the lower ends of the plurality of hanging materials arranged at intervals through holes, and
A pair of side wall portions connected to both side edges of the strip-shaped fixing portion,
A pair of mounting surface portions for mounting the end portions of the field edge portions, which are projected outward from the lower edges of the pair of side wall portions, respectively.
An upper limiting portion protruding so as to be substantially parallel to the previously described mounting surface portion at an upper position separated by the height of the field edge portion from the previously described mounting surface portion,
It is provided with a nut that is arranged vertically with the strip-shaped fixing portion in between and for fixing the lower end portion of the hanging material .
The upper limiting portion is a field edge fixing member characterized in that it is continuously provided above the above-mentioned mounting surface portion . The field edge fixing member according to claim 1, wherein the hole provided in the strip-shaped fixing portion is an elongated hole long in the axial direction of the strip-shaped fixing portion. The field edge according to claim 1 or 2 , wherein at least a part of the strip-shaped fixing portion, the pair of side wall portions, and the pair of mounting surface portions are integrally formed in a hat shape in cross section. Fixing member. It is a suspended ceiling structure suspended from a building structure by a hanging material.
The field edge fixing member according to any one of claims 1 to 3 , which is fixed to the lower end portion of the hanging material.
A field edge portion in which an end portion is housed between the previously described surface portion of the field edge fixing member and the upper limiting portion, and a field edge portion.
The ceiling surface material attached to the lower surface side of the field edge and
A joining means for fixing the field edge portion to the above-mentioned mounting surface portion is provided.
A suspended ceiling structure characterized in that a lower end portion of the suspending material is fixed by the nuts arranged vertically with the strip-shaped fixing portion interposed therebetween. The suspended ceiling structure according to claim 4 , wherein an additional field edge portion is arranged at a position requiring reinforcement, and an end portion of the additional field edge portion is fixed to the above-mentioned mounting surface portion by the joining means. .. It is a method of constructing a suspended ceiling structure that is suspended from a building structure by a hanging material.
The lower end portions of the plurality of hanging members arranged at intervals are passed through the holes of the strip-shaped fixing portion of the field edge fixing member according to any one of claims 1 to 3 , and the strip-shaped fixing portion is passed. And the process of fixing with the nuts arranged above and below with the
A step of inserting the end portions of the field edge portions arranged at intervals in the axial direction of the field edge fixing member between the above-mentioned mounting surface portion and the upper limiting portion.
The ceiling surface material is arranged with respect to the field edge portion whose both ends are inserted into the field edge fixing member, and the joining means is pushed from below the above-mentioned mounting surface portion to make the field edge portion into the field edge fixing member. A method for constructing a suspended ceiling structure, which is characterized by having a joining process.