Partition structure

Abstract

To provide a partition structure that can effectively improve sound insulation performance. [Solution] In the partition structure 1, a predetermined space between the ceiling 20 and the floor 10 is partitioned by a partition wall 30 fixed to the ceiling 20, the ceiling 20 has a ceiling surface material 21 and a ceiling base 24 that supports the ceiling surface material 21, and an edge separation portion 25 is formed above the portion of the ceiling surface material 21 that is fixed to the partition wall 30 so that the ceiling base 24 is separated.

Description

Technical Field

[0001] The present invention relates to a partition structure technology for partitioning a predetermined space between a ceiling portion and a floor portion.

Background Art

[0002] Conventionally, a technology for a partition structure for partitioning a predetermined space between a ceiling portion and a floor portion is known. For example, it is as described in Patent Document 1.

[0003] In the partition structure described in Patent Document 1, the indoor space is partitioned into two spaces by a partition wall having an upper end fixed to a ceiling material and a lower end fixed to a floor material.

[0004] In the partition structure, a notch for edge cutting is formed at a fixing portion of the ceiling material to the partition wall. According to such a configuration, for example, when sound is generated in one of the two spaces, it is possible to cut off the propagation path by vibration bypass through the ceiling material, so that the transmission of sound to the other space can be suppressed.

[0005] However, a partition structure that can more effectively improve the sound insulation performance is required.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] The present invention has been made in view of the above circumstances, and the problem to be solved is to provide a partition structure that can effectively improve the sound insulation performance.

Means for Solving the Problems

[0008] The problems that this invention aims to solve are as described above, and the means for solving these problems will now be explained.

[0009] That is, in claim 1, a partition structure is provided which a predetermined space between a ceiling and a floor is partitioned by a partition wall fixed to the ceiling, wherein the ceiling has a ceiling surface material and a ceiling base that supports the ceiling surface material, and an edge-cutting portion is formed above the portion of the ceiling surface material that is fixed to the partition wall, such that the ceiling base is cut off.

[0010] In claim 2, the ceiling portion has a connecting portion that connects opposing portions of the ceiling base that are separated from each other, and the partition wall has a wall surface material and a partition base that supports the wall surface material, and the partition base is fixed to the connecting portion using predetermined fixing means.

[0011] In claim 3, the connecting portion is formed in the shape of a leaf spring using a strip-shaped member made of steel.

[0012] In claim 4, a plurality of connecting portions are provided and are arranged along the width direction of the partition wall at predetermined intervals from one another.

[0013] Claim 5 provides that the connecting portion comprises a first portion that extends in opposing directions across the separated portion of the ceiling base and is fixed to the partition base, and a second portion that extends upward via a first bend at both ends of the first portion in the opposing direction.

[0014] In claim 6, the second portion is provided with a second bend in the middle of the vertical direction.

[0015] In claim 7, the partition wall is suspended from the ceiling and fixed to it, and has a restricting portion that restricts the movement of the partition wall in the width direction. [Effects of the Invention]

[0016] As an effect of the present invention, the following effects are achieved.

[0017] In the present invention, the sound insulation performance can be effectively improved.

Brief Description of the Drawings

[0018] [Figure 1] Front cross-sectional view showing the partition structure according to the first embodiment of the present invention. [Figure 2] (a) Perspective view showing the connecting portion. (b) Similarly, front view. [Figure 3] Schematic plan view showing the positional relationship of the connecting portion, the edge, and the partition wall. [Figure 4] Image diagram showing how vibration propagates. [Figure 5] Front cross-sectional view showing the partition structure according to the second embodiment of the present invention. [Figure 6] (a) Perspective view showing the connecting portion. (b) Similarly, front view.

Modes for Carrying Out the Invention

[0019] Hereinafter, with reference to FIGS. 1 to 3, the partition structure 1 according to the first embodiment of the present invention will be described.

[0020] In the following description, based on the arrows in the drawings, the front-rear direction, the left-right direction, and the up-down direction will be defined and described. That is, with reference to the partition wall 30 described later, the width direction of the partition wall 30 is defined as the front-rear direction, and the thickness direction of the partition wall 30 is defined as the left-right direction.

[0021] The partition structure 1 is a structure for partitioning the indoor space of a building with a predetermined steel frame structure. As the building, various buildings such as a house, a lodging facility, a medical facility, a nursing facility, a commercial facility, etc. can be adopted. In the present embodiment, the building is a house. The partition structure 1 partitions a predetermined space (indoor space 2) between the floor portion 10 and the ceiling portion 20 of the house into two adjacent spaces. Hereinafter, as shown in FIG. 1, of the two spaces, the left side is referred to as the "first space 3", and the right side is referred to as the "second space 4". The partition structure 1 according to the present embodiment has a structure (sound insulation structure) for improving the sound insulation between the first space 3 and the second space 4, as will be described later. The partition structure 1 includes a floor portion 10, a ceiling portion 20, and a partition wall 30.

[0022] The floor portion 10 shown in FIG. 1 constitutes the floor portion of the indoor space 2. In the present embodiment, the floor surface (floor covering material) of the floor portion 10 is formed such that the first space 3 side and the second space 4 side are not separated and are continuous in a substantially horizontal direction.

[0023] The ceiling portion 20 shown in FIG. 1 constitutes the ceiling portion of the indoor space 2. The ceiling portion 20 is formed, for example, together with the floor portion of the upper floor of the indoor space 2. The ceiling portion 20 includes a ceiling surface material 21, a beam 22, a hanging fixture 23, a ceiling base 24, a cut-off portion 25, and a connecting portion 26.

[0024] The ceiling surface material 21 is made of a gypsum board or the like. In the present embodiment, two upper and lower layers of ceiling surface materials 21 are provided so as to overlap each other. Also, the two layers of ceiling surface materials 21 are formed such that the first space 3 side and the second space 4 side are not separated and are continuous in a substantially horizontal direction.

[0025] The beam 22 is formed of an H-shaped steel including a pair of flanges 22a and a web 22b connecting the flanges 22a. The beam 22 is arranged such that the pair of flanges 22a are vertically positioned with respect to each other. The beam 22 is arranged with its longitudinal direction substantially horizontal (in FIG. 1, the front-rear direction). For example, the upper floor slab is placed on the upper flange 22a of the beam 22.

[0026] The suspension fixture 23 is a component for suspending the ceiling base 24, which will be described later, from the beam 22. The suspension fixture 23 is attached to both the left and right sides (a pair) of the lower flange 22a of the beam 22. Multiple pairs of suspension fixtures 23 are arranged at predetermined intervals along the longitudinal direction of the beam 22 (not shown). The suspension fixture 23 comprises a fixture body 231, suspension bolts 232, and support members 233.

[0027] The jig body 231 is formed from a metal plate-like member that is appropriately bent and extends generally in the vertical direction. The lower end of the jig body 231 extends to one side in the left-right direction (towards the beam 22 in the left-right direction) and is configured to grip the lower flange 22a of the beam 22. By gripping the flange 22a in this way, the lifting jig 23 is attached to the beam 22. The upper end of the jig body 231 extends to the other side in the left-right direction (opposite side of the beam 22 in the left-right direction) and has a hole 234 that penetrates vertically.

[0028] The suspension bolt 232 is inserted through the hole 234 of the jig body 231 with its longitudinal direction facing up and down. With the suspension bolt 232 inserted through the hole 234, it is fixed to the upper end of the jig body 231 using a wing nut or the like. A support member 233 is fixed to the lower end of the suspension bolt 232.

[0029] The support member 233 is the part that supports the ceiling substrate 24. Specifically, the support member 233 supports the joist hanger 242 of the ceiling substrate 24, which will be described later. The support member 233 is formed in a roughly U-shape when viewed from the left-right direction, and is configured to support the joist hanger 242, which is inserted in the left-right direction, from below. The support member 233 is positioned offset from the beam 22 in the left-right direction (a position that does not overlap in the vertical direction). That is, the support member 233 is configured so that its vertical position can be set regardless of the presence of the beam 22. Thus, in this embodiment, the support member 233 is positioned at a relatively high position with respect to the beam 22.

[0030] The ceiling base 24 supports the ceiling surface material 21 from above. The ceiling base 24 is formed as a frame by assembling a plurality of longitudinal members. The ceiling base 24 includes furring strips 241 and furring strip supports 242 as the longitudinal members.

[0031] The ceiling joists 241 are formed from lightweight steel channel steel with lips. Multiple ceiling joists 241 are provided and arranged at predetermined intervals so that their longitudinal directions are parallel to each other.

[0032] The joist supports 242 are formed from channel steel made of lightweight steel, similar to the joists 241. The joist supports 242 are positioned perpendicular to the joists 241 in a plan view. Multiple joist supports 242 are provided and arranged at predetermined intervals so that their longitudinal directions are parallel to each other. The joist supports 242 support the joists 241 from above via predetermined fittings or the like.

[0033] Furthermore, the joist hangers 242 are supported by the support members 233 of the suspension jig 23 as described above. In this way, the ceiling substructure 24 is suspended from the beam 22 via the suspension jig 23. Also, as described above, since the support members 233 of the suspension jig 23 are positioned at a relatively high position, the ceiling substructure 24 supported by the support members 233 is also positioned at a relatively high position. With this configuration, the ceiling portion 20 of the interior space 2 can be positioned at a relatively high position, thereby improving livability.

[0034] In this case, if the ceiling base 24 is positioned at a relatively high location, there is a risk that the ceiling base 24 and the beam 22 may interfere with each other. Therefore, in this embodiment, interference between the ceiling base 24 and the beam 22 is avoided by the edge separation portion 25, which will be described later.

[0035] The ceiling base 24 is not limited to being made of lightweight steel. For example, the ceiling base 24 may be made of wood. When made of wood, the ceiling base 24 is formed by assembling wooden battens in a grid pattern.

[0036] The separation section 25 is the part of the ceiling substrate 24 that is separated from it. The separation section 25 is formed so that the ceiling substrate 24 is separated above the fixing portion between the ceiling surface material 21 and the partition wall 30, which will be described later. The separation section 25 forms a separated portion between the lower end of the beam 22 (lower flange 22a) and the upper end of the partition wall 30, that is, an open space where the ceiling substrate 24 is not placed (hereinafter referred to as the "open space 251"). For example, in Figure 1, the separation section 25 is composed of the right end of the left furring strip support 242 and the left end of the right furring strip support 242, and these together form the open space 251.

[0037] Thus, the separation portion 25 separates the ceiling base 24. That is, above the partition wall 30, the ceiling base 24 located above the first space 3 and the ceiling base 24 located above the second space 4 are formed to be separated in the left-right direction with the beam 22 in between, thus avoiding a continuous configuration where they are connected to each other. In this embodiment, although the ceiling base 24 is positioned at a relatively high position as described above, interference between the beam 22 and the ceiling base 24 can be avoided.

[0038] The connecting portion 26 shown in Figures 1 and 2 is made of a metallic material. In this embodiment, the connecting portion 26 is made of steel. In this embodiment, steel refers to iron and steel used as industrial materials for civil engineering, construction, etc., and includes, for example, ordinary steel, special steel with various elements added, stainless steel, and steel materials that have been chemically or physically surface-treated. The thickness of the connecting portion 26 is set to, for example, 0.5 mm or less.

[0039] The connecting portion 26 is formed from wire. More specifically, the connecting portion 26 is formed by appropriately bending a strip-shaped member to form a roughly U-shape with an opening facing upward when viewed from the front. A strip-shaped member is a long, narrow shape with a certain width. In this embodiment, the width (length in the front-to-back direction) of the connecting portion 26 is formed to be approximately the same as, or smaller than, the width of, for example, the support member 233 of the suspension jig 23 or the joist support 242 of the ceiling substrate 24. The connecting portion 26 is also positioned with its width direction facing the front-to-back direction.

[0040] Thus, the connecting portion 26 is formed in the shape of a leaf spring that can exert elastic force in any direction, including the vertical and horizontal directions, when viewed from the front, while ensuring sufficient strength to accommodate the fixing of the partition wall 30, which will be described later.

[0041] As shown in Figure 1, the connecting portion 26 is positioned in the ceiling portion 20 so as to be located in the open space 251. The connecting portion 26 is fixed to the support members 233 of the left and right hanging jigs 23, or to the left and right furring strip supports 242 supported by the support members 233 of the left and right hanging jigs 23, using predetermined fixing means such as screws. In this way, the connecting portion 26 is configured to connect the opposing portions (in Figure 1, the right end of the left furring strip support 242 and the left end of the right furring strip support 242) that are separated from the ceiling base 24 (open space 251).

[0042] Next, the configuration of the connecting portion 26 according to the first embodiment will be described in more detail with reference to Figure 2.

[0043] As shown in Figure 2, the connecting portion 26 comprises a first portion 261, a first bent portion 262, a second portion 263, and a second bent portion 264.

[0044] The first portion 261 is the part of the connecting portion 26 that extends in the opposite direction (left-right direction) across the separated portion (open space 251) of the ceiling base 24. The first portion 261 is formed at the lower end of the connecting portion 26. The lower surface of the first portion 261 is formed so that its vertical position is the same as the lower surface of the furring strips 241 of the ceiling base 24. The first portion 261 is fixed to the wall base 32 of the partition wall 30, as will be described later.

[0045] The first bent portion 262 is one of the bent parts of the connecting portion 26. The first bent portion 262 is located at both ends of the first portion 261 in the left-right direction. The first bent portion 262 connects the first portion 261 and the second portion 263 to each other.

[0046] The second portion 263 is a part of the connecting portion 26 that extends upward from both the left and right ends of the first portion 261 via the first bent portion 262. That is, the second portion 263 is formed at both the left and right ends of the connecting portion 26. The second portion 263 is configured to abut in the left and right direction against the support member 233 of the adjacent lifting jig 23, or against the joist support 242 supported by the support member 233. The second portion 263 is fixed to the support member 233 or the joist support 242 using predetermined fastening means such as screws in the portion above the second bent portion 264, which will be described later.

[0047] The second bent portion 264 is one of the bent parts of the connecting portion 26, different from the first bent portion 262. The second bent portion 264 is formed midway in the vertical direction of the second portion 263. The second bent portion 264 is formed in a roughly U-shape, protruding inward in the left-right direction of the connecting portion 26 and with its opening facing outward in the left-right direction of the connecting portion 26 when viewed from the front. Thus, four bent portions are formed in the second bent portion 264.

[0048] In the connecting portion 26 configured as described above, the multiple bent portions (first bent portion 262 and second bent portion 264) are configured to exhibit elastic force suitably in any direction, including the vertical and horizontal directions, when viewed from the front.

[0049] Furthermore, multiple connecting sections 26 are provided for a single partition wall 30. Figure 3 is a schematic plan view showing the positional relationship between the connecting sections 26, the joists 241, and the partition wall 30. In Figure 3, for the sake of explanation, the illustration of members other than the connecting sections 26, the joists 241, and the partition wall 30 is omitted. As shown in Figure 3, the multiple connecting sections 26 are arranged along the width direction (front-to-back direction) of the partition wall 30 at predetermined intervals from each other. In this embodiment, the multiple connecting sections 26 are arranged at a pitch of approximately 455 mm.

[0050] The partition wall 30 shown in Figure 1 is a wall that divides the interior space 2 into a first space 3 and a second space 4. The partition wall 30 comprises a wall surface material 31, a wall base 32, a fixing wooden piece 33, and vibration-damping rubber 34.

[0051] The wall material 31 is made of gypsum board or the like. The wall material 31 is located at both ends of the partition wall 30 in the thickness direction (left-right direction). As shown in Figure 1, the wall material 31 is installed with a gap (space) above the floor surface of the floor section 10, for example, about 5 mm.

[0052] The wall base 32 supports the wall material 31 from the side. The wall base 32 is formed as a frame by assembling multiple elongated wooden members. In Figure 1, the upper part of the wall base 32 that extends in the width direction (front-to-back direction) of the partition wall 30 (referred to as the "upper rail 321") and the lower part that extends in the front-to-back direction (referred to as the "lower rail 322") are shown.

[0053] The upper end of the wall panel 31 is fixed to the upper rail 321 using screws or the like (not shown). Also, as shown in Figure 1, the upper rail 321 abuts against the ceiling panel 21 of the ceiling section 20 from below. In this way, the upper rail 321 is fixed to the connecting part 26 via the ceiling panel 21 while in contact with the ceiling panel 21. The contact portion between the upper rail 321 and the ceiling panel 21 corresponds to the fixing portion between the upper rail 321 and the ceiling panel 21 as described above. Multiple connecting parts 26 are arranged along the front-rear direction as described above (see Figure 3). In this way, the entire partition wall 30 is fixed to the ceiling section 20 by fixing the upper rail 321 to multiple connecting parts 26.

[0054] The lower rail 322 is fixed to the wall material 31 near its lower end using screws or the like. Also, as shown in Figure 1, the lower end of the lower rail 322 does not come into contact with the floor surface of the floor section 10. In other words, the lower rail 322 is installed spaced upward from the floor surface of the floor section 10.

[0055] Thus, as described above, the upper end of the partition wall 30 is fixed to the ceiling 20, while the lower end (more specifically, the lower end of the wall surface material 31 and wall base 32) is separated from the floor 10, resulting in the partition wall being suspended from the ceiling 20. In other words, the ceiling 20 is configured so that multiple connecting parts 26 support the entire load (total load) of the partition wall 30.

[0056] The fixing piece 33 is a roughly rectangular parallelepiped made of wood. The fixing piece 33 is positioned inside the left and right wall panels 31 and below the bottom rail 322. The fixing piece 33 is placed on the floor surface of the floor section 10. The fixing piece 33 is fixed to the floor section 10 using screws or the like (not shown). Multiple fixing pieces 33 are provided. Multiple fixing pieces 33 are arranged along the width direction (front-to-back direction) of the partition wall 30 at predetermined intervals from each other (so that they are scattered). In this embodiment, the multiple fixing pieces 33 are arranged at a pitch of approximately 910 mm. Since the fixing pieces 33 are in contact with the wall panels 31, it is desirable to have as few as possible while maintaining the out-of-plane strength of the wall panels 31.

[0057] The vibration-damping rubber 34 is an elastically deformable component. The vibration-damping rubber 34 is positioned so as to be in contact with the left and right sides of the fixed wooden block 33 and the wall material 31. The vibration-damping rubber 34 is fixed to the sides of the fixed wooden block 33 with adhesive or the like. Multiple vibration-damping rubbers 34 are provided to accommodate multiple fixed wooden blocks 33.

[0058] Thus, although the lower end of the partition wall 30 (more specifically, the wall surface material 31 and wall base 32) suspended from the ceiling 20 is not fixed to the floor 10, the fixing wooden piece 33 is fixed to the floor 10, which restricts movement (swaying) of the lower end in the thickness direction (left-right direction). In addition, since vibration-damping rubber 34 is provided, if, for example, a force is applied to the wall surface material 31 in the left-right direction, the impact on the fixing wooden piece 33 can be absorbed.

[0059] The sound insulation structure in the partition structure 1 according to this embodiment will be described below.

[0060] For example, if sound is generated in one of the two spaces, the first space 3 and the second space 4, the partition wall 30 itself may act as a vibration propagation path, potentially transmitting the sound to the other space. Furthermore, vibrations from the partition wall 30 itself may propagate to the ceiling 20 located above the partition wall 30 and the floor 10 located below it, potentially transmitting the sound to the other space via these vibration-detour propagation paths.

[0061] In contrast, in the partition structure 1 according to this embodiment, an open space (open space 251) is formed in the ceiling portion 20 above the partition wall 30 without the placement of a ceiling base 24. As a result, as shown in Figure 4, the vibration propagation path is interrupted at the ceiling base 24, and the ceiling portion 20 can be used as a propagation path by bypassing vibrations, thereby suppressing the transmission of sound to the other space.

[0062] Furthermore, in the open space 251, a plurality of connecting parts 26 formed in the shape of leaf springs as described above are provided, and the partition wall 30 is fixed to these plurality of connecting parts 26. In this way, since the partition wall 30 is fixed to the ceiling part 20 via the connecting parts 26 which have a vibration-damping effect, the transmission of vibrations of the partition wall 30 itself to the ceiling part 20 can be effectively suppressed. In this way, the transmission of sound to the other space can be suppressed by using the ceiling part 20 as a propagation path by bypassing vibrations.

[0063] Furthermore, in the ceiling section 20, multiple connecting sections 26 are configured to support the entire load of the partition wall 30. Therefore, if the partition wall 30 vibrates, the vibration of the partition wall 30 (i.e., the way the partition wall 30 sways) can be made gentler. This makes it possible to suppress the transmission of sound generated in one space to the other space by using the partition wall 30 itself as a vibration propagation path.

[0064] Furthermore, in the partition wall 30, since the wall surface material 31 and wall base 32 are not fixed to the floor 10, as shown in Figure 4, vibrations of the partition wall 30 itself can be effectively suppressed from being transmitted to the floor 10. In other words, the floor 10 can be used as a propagation path by bypassing vibrations, and the transmission of sound to the other space can be suppressed.

[0065] As described above, in the partition structure 1 according to the embodiment of the present invention, A partition structure in which a predetermined space between the ceiling portion 20 and the floor portion 10 is partitioned by a partition wall 30 fixed to the ceiling portion 20, The aforementioned ceiling portion 20 is It has a ceiling surface material 21 and a ceiling base 24 that supports the ceiling surface material 21, An edge-cutting portion 25 is formed above the portion of the ceiling surface material 21 that is fixed to the partition wall 30, so as to separate the ceiling base material 24 from the ceiling base material 24.

[0066] This configuration effectively improves sound insulation performance.

[0067] Furthermore, in partition structure 1, The aforementioned ceiling portion 20 is The ceiling base 24 has a connecting portion 26 that connects the opposing portions on either side of the separated portion (open space 251), The aforementioned partition wall 30 is It has a wall surface material 31 and a wall base 32 (partition base) that supports the wall surface material 31, The wall base 32 is fixed to the connecting portion 26 using predetermined fixing means.

[0068] With this configuration, the partition wall 30 can be suspended from the ceiling 20 via the connecting part 26, thereby effectively improving sound insulation performance.

[0069] Furthermore, in partition structure 1, The aforementioned connecting portion 26 is It is formed in the shape of a leaf spring using a strip-shaped member made of steel.

[0070] This configuration allows for a more effective improvement in sound insulation performance.

[0071] Furthermore, in partition structure 1, Multiple connecting portions 26 are provided and are arranged along the width direction of the partition wall 30 at predetermined intervals from each other.

[0072] With this configuration, the partition wall 30 can be suspended from the ceiling 20 via multiple connecting parts 26, thereby more effectively improving sound insulation performance.

[0073] Furthermore, in partition structure 1, The aforementioned connecting portion 26 is The first portion 261 extends in the opposite direction across the separated portion (open space 251) of the ceiling base 24 and is fixed to the wall base 32, A second portion 263 extends upward from both ends of the first portion 261 in the opposing direction via a first bent portion 262, It is equipped with the following features.

[0074] With this configuration, the first bent portion 262 can exert elastic force, thereby more effectively improving sound insulation performance.

[0075] Furthermore, in partition structure 1, The second portion 263 includes: A second bend 264 is provided midway in the vertical direction.

[0076] With this configuration, the first bent portion 262 and the second bent portion 264 can exert elastic force, thereby more effectively improving sound insulation performance.

[0077] Furthermore, in partition structure 1, The aforementioned partition wall 30 is It is suspended in a fixed state from the ceiling portion 20, The partition wall 30 has a fixed wooden piece 33 (restricting part) that restricts its movement in the width direction.

[0078] This configuration allows for more effective improvement of sound insulation performance while also enhancing the convenience of the partition wall 30.

[0079] Although one embodiment of the present invention has been described above, the present invention is not limited to the above configuration, and various modifications are possible within the scope of the invention as described in the claims.

[0080] For example, the shape, material, etc. of each part of the partition structure 1 can be appropriately modified within the scope of the invention described in the claims.

[0081] Specifically, the ceiling surface material 21 of the floor section 10 and the ceiling section 20 may be configured to separate the first space 3 side from the second space 4 side in the portions located below and above the partition wall 30. This makes it possible to more reliably interrupt the propagation path due to vibration detours and to more effectively suppress the transmission of sound from one space to the other.

[0082] Furthermore, the fixing piece 33 is not limited to wood, but can be formed from any material.

[0083] Furthermore, in this embodiment, the lower rail 322 of the wall base 32 is positioned above the fixed wooden piece 33, but this is not the only option. That is, since multiple fixed wooden pieces 33 are provided and are arranged to be scattered along the width direction (front-to-back direction) of the partition wall 30, the lower rail 322 can also be positioned between them. Even in this case, the lower rail 322 is provided approximately 5 mm above the floor surface of the floor section 10.

[0084] Furthermore, the configuration of the connecting portion 26 is not limited to that of this embodiment and can be changed in various ways. For example, the number and location of the bent portions of the connecting portion can be set arbitrarily. Also, the shape of the connecting portion is not limited to a roughly U-shape when viewed from the front, but can be a roughly S-shape, a hat shape, or various other shapes.

[0085] In the following section, the configuration of the connecting portion 26A in the partition structure 1A according to the second embodiment will be described using Figures 5 and 6. In Figures 5 and 6, components of the partition structure 1A according to the second embodiment that are the same as those of the partition structure 1 according to the first embodiment are denoted by the same reference numerals, and their descriptions are omitted.

[0086] As shown in Figure 5, the connecting portion 26A is positioned in the ceiling portion 20, similar to the connecting portion 26 in the first embodiment, so as to be located in the open space 251. As shown in Figure 6, the connecting portion 26A comprises a first portion 261A, a first bent portion 262A, a second portion 263A, and a second bent portion 264A.

[0087] The first portion 261A is formed to be shorter in the left-right direction than the first portion 261 according to the first embodiment. The first bent portion 262A is formed to be bent at a smaller angle than the first bent portion 262 according to the first embodiment.

[0088] The second section 263A extends generally upward. Specifically, the second section 263A comprises a third section 265A and a fourth section 266A.

[0089] The third portion 265A is formed to extend outward in the left-right direction from the connecting portion 26A as it extends upward. The upper end of the third portion 265A is formed to be located slightly above the support member 233. The fourth portion 266A is formed to extend outward in the left-right direction from the upper end of the third portion 265A via the second bend portion 264A. The fourth portion 266A is configured to cover the upper end of the support member 233 from above and to abut against it. The fourth portion 266A is fixed to the support member 233 or the joist support 242 using predetermined fastening means such as screws.

[0090] The second bent portion 264A connects the third portion 265A and the fourth portion 266A of the second portion 263A. The second bent portion 264A is formed in a different way (number of folds and angle) than the second bent portion 264 according to the first embodiment.

[0091] In the connecting portion 26A configured as described above, similar to the connecting portion 26 according to the first embodiment, multiple bent portions (first bent portion 262 and second bent portion 264) are configured to suitably exert elastic force in any direction, including the vertical and horizontal directions, when viewed from the front. [Explanation of Symbols]

[0092] 1. Partition structure 10 Floor 20 Ceiling section 21 Ceiling materials 24 Ceiling Substrate 25 Edge-cutting section

Claims

1. A partition structure that divides a predetermined space between the ceiling and the floor by a partition wall fixed to the ceiling, The aforementioned ceiling section is It has a ceiling surface material and a ceiling base that supports the said ceiling surface material, An edge-cutting portion is formed above the portion of the ceiling surface material that is fixed to the partition wall, so that the ceiling base is separated from it. Partition structure.

2. The aforementioned ceiling section is The ceiling substrate has a connecting portion that connects the opposing portions sandwiched between the separated edges of the ceiling substrate, The aforementioned partition wall is It has a wall surface material and a partition base that supports the wall surface material, The partition base is fixed to the connecting portion using predetermined fixing means. The partition structure according to claim 1.

3. The aforementioned connecting portion is A strip-shaped member made of steel is used to form a leaf spring shape. The partition structure according to claim 2.

4. Multiple connecting parts are provided and are arranged along the width direction of the partition wall at predetermined intervals from each other. The partition structure according to claim 3.

5. The aforementioned connecting portion is The first portion extends in the opposite direction, sandwiching the separated portion of the ceiling substrate, and is fixed to the partition substrate, A second portion extending upward via a first bend at both ends of the first portion in the opposing direction, It is equipped with, The partition structure according to claim 3.

6. The second part mentioned above includes, A second bend is provided midway in the vertical direction. The partition structure according to claim 5.

7. The aforementioned partition wall is It is suspended in a fixed position on the ceiling, Having a restricting part that restricts movement of the partition wall in the width direction, The partition structure according to claim 1.

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