Partition structure

Abstract

To provide a partition structure that can improve sound insulation performance. [Solution] A partition structure in which the space between the ceiling 20 and the floor 10 is partitioned by a partition wall 40, wherein the partition wall 40 comprises a wall surface material 41 and a frame-shaped wall base 42 that supports the wall surface material 41 from the side, and the wall base 42 is formed to be suspended in a fixed state to the ceiling 20 and comprises a fixing wooden piece 45 (restricting part) that restricts the movement of the wall base 42 with the fixed part between the wall base 42 and the ceiling 20 as a fulcrum.

Description

Technical Field

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

Background Art

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

[0003] In the partition structure described in Patent Document 1, a partition wall for partitioning the indoor space into two spaces is provided. The partition wall has its upper end fixed to the ceiling material and its lower end fixed to the floor material.

[0004] Here, the floor impact sound of the upper floor of the building is propagated downward to the ceiling portion of the lower floor through the floor portion of the upper floor, and the ceiling portion of the lower floor is excited and then radiated to the lower floor. The floor impact sound includes, for example, the weight floor impact sound such as walking sound, and in this weight floor impact sound, the sound in the 63 Hz band becomes a problem.

[0005] Conventionally, for example, technologies for anti-vibration of the ceiling portion and the floor portion that vibrate greatly in the 63 Hz band, specifically, configurations including elastic support of the ceiling portion and the floor portion by elastic members such as rubber and leaf springs, and making the ceiling portion and the floor portion easier to vibrate at frequencies lower than the 63 Hz band (difficult to vibrate in the 63 Hz band) are known. For example, it is as described in Patent Document 2.

[0006] In the technology described in Patent Document 2, a leaf spring is provided in a part of the hanging tool for hanging and supporting the edge support on the beam. According to this, for example, when floor impact sound occurs on the upper floor, the propagation of vibration to the lower floor is suppressed by the leaf spring of the hanging tool, and the frequency of the vibration can be adjusted, so that the sound insulation performance can be improved.

[0007] However, the partition wall described in Patent Document 1 is constructed by bracing the ceiling and floor upwards and downwards, respectively, which relatively strongly restrains the ceiling and floor. Therefore, even if the technology described in Patent Document 2 is adopted for the aforementioned partition wall, for example, the expected vibration damping effect may not be obtained, and the sound insulation performance may not improve. [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] Japanese Patent Publication No. 2017-179874 [Patent Document 2] Japanese Patent Publication No. 2021-46925 [Overview of the project] [Problems that the invention aims to solve]

[0009] This invention was made in view of the above circumstances, and the problem it aims to solve is to provide a partition structure that can improve sound insulation performance. [Means for solving the problem]

[0010] The problems that this invention aims to solve are as described above, and the means for solving these problems will now be explained.

[0011] In other words, claim 1 is a partition structure that divides the space between the ceiling and the floor with a partition wall, wherein the partition wall comprises a wall surface material and a frame-shaped wall base that supports the wall surface material from the side, and the wall base is suspended in a fixed state from the ceiling.

[0012] Claim 2 provides a restricting part that restricts the movement of the wall base with respect to the fixed portion between the wall base and the ceiling portion.

[0013] In claim 3, the regulating part is not fixed to the floor part below the wall base and on the side of the wall material.

[0014] In claim 4, the regulating part is not fixed to the wall material.

[0015] In claim 5, a buffer material is provided between the regulating part and the wall material.

[0016] In claim 6, the regulating parts are provided so as to be scattered in the width direction of the partition wall.

Effect of the Invention

[0017] As an effect of the present invention, the following effects are obtained.

[0018] In the present invention, the sound insulation performance can be improved.

Brief Description of the Drawings

[0019] [Figure 1] Front cross-sectional view showing a partition structure according to a first embodiment of the present invention. [Figure 2] Front schematic view showing the installation state of the partition structure in the whole house. [Figure 3] Perspective view showing a partition wall. [Figure 4] Exploded perspective view showing a partition wall. [Figure 5] Front cross-sectional view showing the vicinity of the lower end of the partition wall. [Figure 6] Left side view showing the vicinity of the lower end of the partition wall.

Modes for Carrying Out the Invention

[0020] Hereinafter, the partition structure 1 according to the first embodiment of the present invention will be described.

[0021] In the following explanation, the front-to-back, left-to-right, and up-to-down directions are defined based on the arrows in the diagram. Specifically, using the partition wall 40 (described later) as the reference point, the width direction of the partition wall 40 is defined as the front-to-back direction, and the thickness direction of the partition wall 40 is defined as the left-to-right direction.

[0022] The partition structure 1 shown in Figures 1 and 2 is a structure for partitioning the interior space of a predetermined steel-framed building. Various types of buildings can be used as the said building, such as residences, lodging facilities, medical facilities, nursing care facilities, and commercial facilities. In this embodiment, as shown in Figure 2, the building is a three-story residence with a generally similar configuration on each floor. In the following description, unless otherwise specified, the explanation will focus on the partition structure 1 on the second floor of the residence. Specifically, Figure 1 illustrates the part indicated by the symbol A in Figure 2.

[0023] The partition structure 1 divides the space between the floor 10 and the ceiling 20 into two adjacent spaces using a partition wall 40. The partition structure 1 comprises a floor 10, a ceiling 20, and a partition wall 40.

[0024] The floor section 10 shown in Figures 1 and 2 constitutes the floor portion of the second floor. The floor section 10 comprises a floor body 11, a first beam 12, and support members 13.

[0025] The floor main body 11 is made of, for example, ALC floorboards (not shown), soundproofing mats, particle boards, flooring materials, etc. The first beam 12 supports the floor main body 11 via support members 13 (described later) and also suspends and supports the ceiling 20 of the first floor. The first beam 12 constitutes the structural frame of the house and has the same configuration as the second beam 22 (described later).

[0026] The support member 13 is an elastic member made of, for example, rubber. The support member 13 is formed in a sheet shape and placed on the upper flange 22a of the first beam 12. The support member 13 is interposed between the upper flange 22a and the floor body 11. In this way, the support member 13 elastically supports the floor body 11.

[0027] Thus, in the floor section 10 configured as described above, vibration is damped by the support material 13. That is, for example, if floor impact sound (heavy floor impact sound) occurs on the second floor, the support material 13 can suppress the transmission of vibration to the first floor via the floor section 10 on the second floor. In addition, this makes it possible to adjust the frequency of vibration, and consequently improve sound insulation performance.

[0028] The ceiling section 20 shown in Figures 1 and 2 constitutes the ceiling portion of the second floor. The ceiling section 20 is formed together with the floor section 10 of the third floor. The ceiling section 20 comprises a ceiling surface material 21, a second beam 22, a suspension jig 23, and a ceiling base 24.

[0029] The ceiling surface material 21 is made of gypsum board or the like. In this embodiment, two layers of ceiling surface material 21 are installed so as to overlap each other.

[0030] The second beam 22 is formed from an H-shaped steel beam comprising upper and lower flanges 22a and a web 22b connecting the upper and lower flanges 22a. The second beam 22 is positioned with its longitudinal direction approximately horizontal (front-to-back direction in Figure 1). The floor section 10 of the third floor is placed on the upper flange 22a of the second beam 22.

[0031] The suspension jig 23 is a component for suspending the ceiling base 24, which will be described later, from the second beam 22. The suspension jig 23 is attached to the right side of the lower flange 22a of the second beam 22. Multiple suspension jigs 23 are arranged at predetermined intervals along the longitudinal direction of the second beam 22 (not shown). The suspension jig 23 comprises a jig body 25, suspension bolts 26, support members 27, and a leaf spring section 28.

[0032] The jig body 25 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 25 extends toward the second beam 22 and is configured to grip the lower flange 22a of the second beam 22. By gripping the flange 22a in this way, the lifting jig 23 is attached to the second beam 22. The upper end of the jig body 25 extends toward the opposite side of the second beam 22 and has a hole 25a that penetrates vertically.

[0033] The suspension bolt 26 is inserted through the hole 25a of the jig body 25 with its longitudinal direction facing up and down. The suspension bolt 26 is fixed to the leaf spring section 28, which will be described later, while it is inserted through the hole 25a. A support member 27 is fixed to the lower end of the suspension bolt 26.

[0034] The support member 27 is the part that supports the ceiling substrate 24. Specifically, the support member 27 supports the joist support 30, which will be described later, within the ceiling substrate 24. The support member 27 is formed in a roughly U-shape when viewed from the left-right direction, and is configured to support the joist support 30, which is inserted in the left-right direction, from below.

[0035] The leaf spring portion 28 is an elastic member formed in the shape of a leaf spring. The leaf spring portion 28 is formed by appropriately bending a long, slender, flat member. In a side view, the leaf spring portion 28 is formed in a U-shape with the lower side open (not shown), and is configured to be easily elastically deformed. A hole 28a is formed at the upper end of the leaf spring portion 28, passing through from top to bottom. A suspension bolt 26 is inserted through the hole 28a and fixed using a wing nut or the like. In this way, the leaf spring portion 28 elastically supports the suspension bolt 26.

[0036] Thus, in the suspension jig 23 (ceiling section 20) configured as described above, vibration is damped by the leaf spring section 28. That is, for example, if floor impact sound (heavy floor impact sound) occurs on the 3rd floor (upper floor), the leaf spring section 28 of the suspension jig 23 can suppress the transmission of vibration to the indoor space on the 2nd floor via the ceiling section 20 of the 2nd floor. In addition, this makes it possible to adjust the frequency of vibration, and consequently improve sound insulation performance.

[0037] 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 29 and furring strip supports 30 as the longitudinal members.

[0038] The ceiling joists 29 are formed from channel steel with lips made of lightweight steel. Multiple ceiling joists 29 are provided and arranged at predetermined intervals so that their longitudinal directions are parallel to each other.

[0039] The joist support 30 is formed from channel steel made of lightweight steel, similar to the joists 29. The joist support 30 is positioned perpendicular to the joists 29 in a plan view. Multiple joist support 30s are provided and arranged at predetermined intervals so that their longitudinal directions are parallel to each other. The joist support 30 supports the joists 29 from above via predetermined fittings or the like.

[0040] Furthermore, the ceiling joist support 30 is supported by the support member 27 of the suspension jig 23 as described above. In this way, the ceiling base 24 is suspended from the second beam 22 via the suspension jig 23.

[0041] The configuration of the partition wall 40 will be explained in detail below using Figures 1 to 6. Figure 6 is a left side view showing the vicinity of the lower end of the partition wall 40, and for the sake of explanation, the illustration of the left wall material 41, which will be described later, has been omitted.

[0042] The partition walls 40 shown in Figures 1 to 6 are walls that divide the interior space as described above. The partition walls 40 are equipped with wall surface material 41, wall base 42, fixing wooden pieces 45, and cushioning material 46.

[0043] The wall panels 41 are made of gypsum board or the like. The wall panels 41 are positioned with their surface facing left to right and their length facing up to down. The wall panels 41 are located at both ends of the partition wall 40 in the thickness direction (left to right). The left and right wall panels 41 have the same structure. The length of the wall panels 41 in the longitudinal direction (up to down) is slightly shorter than the vertical distance between the ceiling 20 and the floor 10. Therefore, as shown in Figures 5 and 6, the wall panels 41 are installed with a gap (X1) above the floor surface of the floor 10, for example, about 2 to 5 mm.

[0044] The wall base 42 supports the wall material 41 from the side. The wall base 42 is formed as a frame by assembling a plurality of elongated wooden members (battens). The wall base 42 includes vertical battens 43 and horizontal battens 44 as the battens.

[0045] The vertical battens 43 are battens with their longitudinal direction oriented vertically. Multiple vertical battens 43 are provided (three in this embodiment). The vertical battens 43 are positioned at the front end, rear end, and approximately the center in the front-to-back direction of the wall base 42.

[0046] The horizontal bar 44 is a crossbar member whose longitudinal direction is oriented in the front-to-back direction. Multiple horizontal bars 44 are provided (three in this embodiment). The horizontal bars 44 are provided so as to be located at the upper end, lower end, and approximately in the center in the vertical direction of the wall base 42. Hereinafter, the horizontal bars 44 located at the upper end and lower end of the wall base 42 will be referred to as "upper horizontal bar 44a" and "lower horizontal bar 44b," respectively.

[0047] The upper horizontal rail 44a is configured to connect with the upper end of all the vertical rails 43. That is, the upper horizontal rail 44a is located at the very top of the wall base 42. The upper ends of the left and right wall panels 41 are fixed to the upper horizontal rail 44a using screws or the like (not shown). Also, as shown in Figure 1, the upper horizontal rail 44a, together with the wall panels 41, abuts against the ceiling panel 21 of the ceiling section 20 from below. With the upper horizontal rail 44a in contact with the ceiling panel 21, it is fixed to the furring strips 29 via the ceiling panel 21 using screws B. In this way, the wall base 42 and the left and right wall panels 41 are fixed to the ceiling section 20.

[0048] The lower horizontal rail 44b is configured to connect with the lower end of all the vertical rails 43. That is, the lower horizontal rail 44b is located at the very bottom of the wall base 42. The lower end of the lower horizontal rail 44b does not abut the floor surface of the floor section 10. That is, the lower horizontal rail 44b is installed at an upward spacing relative to the floor surface of the floor section 10. Also, the lower end of the lower horizontal rail 44b is installed above the lower end of the wall material 41. Specifically, as shown in Figures 5 and 6, the lower horizontal rail 44b is installed at an upward spacing (gap X2) of approximately 100 mm relative to the floor surface of the floor section 10. The lower horizontal rail 44b is fixed to the left and right wall material 41 near the lower end (slightly above the lower end) using screws B.

[0049] With this configuration, the upper end of the wall base 42 is fixed to the ceiling 20, while the lower end is separated from (not fixed to) the floor 10, and is therefore suspended while fixed to the ceiling 20. In other words, in the partition structure 1, the ceiling 20 is configured to bear the entire load (total load) of the wall base 42 (and furthermore, the left and right wall panels 41).

[0050] The fixing piece 45 is a roughly rectangular parallelepiped made of wood. The fixing piece 45 is positioned on the inside of the left and right wall panels 41 in the left-right direction, and below the lower horizontal rail 44b. The fixing piece 45 is placed on the floor surface of the floor section 10. The fixing piece 45 is fixed to the floor section 10 using screws or the like (not shown). The fixing piece 45 is in contact with the wall panels 41 via a cushioning material 46, which will be described later. Multiple fixing pieces 45 (two in this embodiment) are provided. The two fixing pieces 45 are arranged along the width direction (front-back direction) of the partition wall 40, with a predetermined distance between them (so that they are scattered). In this embodiment, the two fixing pieces 45 are arranged at a pitch of approximately 910 mm.

[0051] The number of fixing wooden pieces 45 is not limited to that of this embodiment (2 pieces). However, since the fixing wooden pieces 45 are in contact with the wall material 41 as described above, it is desirable to use as few pieces as possible within the range that the out-of-plane strength of the wall material 41 can be maintained (the range that can withstand external forces acting in the out-of-plane direction), from the viewpoint of minimizing the restraint between the partition wall 40 and the floor 10.

[0052] The cushioning material 46 is an elastically deformable member made of, for example, rubber. The cushioning material 46 is positioned so as to be in contact with the left and right sides of the fixed wooden piece 45 and the wall material 41. The cushioning material 46 is fixed to the sides of the fixed wooden piece 45 with adhesive or the like. The length of the cushioning material 46 in the left-right direction is the same as that of the fixed wooden piece 45. The length of the cushioning material 46 in the vertical direction is approximately half that of the fixed wooden piece 45.

[0053] Thus, the partition wall 40 is suspended between the ceiling 20 and the floor 10, with the wall base 42 and wall surface material 41 suspended from the fixing portion with respect to the ceiling 20. The fixing portion is the contact portion between the wall base 42 and the ceiling 20, which is fixed using screws B.

[0054] In the partition structure 1 described above, since the wall base 42 is suspended from the ceiling 20, the ceiling 20 bears the entire load of the wall base 42 and wall surface material 41 of the partition wall 40. Thus, the ceiling 20 bears a relatively large load. This allows the ceiling 20 to vibrate at a lower frequency, improving sound insulation performance (ceiling vibration isolation performance).

[0055] Furthermore, in partition structure 1, the partition wall 40 that divides the interior space on the second floor does not brace the ceiling 20 and the floor 10 upwards and downwards, respectively, and therefore does not restrain the ceiling 20 and the floor 10. In other words, the transmission of vibrations from the ceiling 20 on the second floor to the floor 10 via the partition wall 40 is suppressed, and sound insulation performance can be improved.

[0056] Furthermore, in this embodiment, since the ceiling 20 and the floor 10 are not restrained, the expected vibration damping effect can be obtained without increasing the spring constants of the support material 13 of the ceiling 20 and the leaf spring portion 28 of the suspension jig 23 of the floor 10. In other words, the frequency of vibrations from floor impact sound can be adjusted, thereby improving sound insulation performance.

[0057] Furthermore, as described above, the propagation of vibrations from the ceiling 20 on the second floor to the floor 10 via the partition wall 40 can be suppressed. For example, in a multi-story building (three floors in this embodiment) as shown in Figure 2, the propagation of floor impact noise generated on an upper floor to a lower floor can be suppressed. Specifically, even if floor impact noise is generated in the interior space on the third floor, the vibration isolation effect of the floor 10 on the third floor and the ceiling 20 on the second floor keeps the interior space on the second floor relatively quiet. In addition, the vibration isolation effect of the floor 10 on the second floor and the ceiling 20 on the first floor keeps the interior space on the first floor even quieter. In this way, the ripple effect obtained from the partition structure 1 according to this embodiment provides a suitable vibration isolation effect for high-rise buildings.

[0058] Furthermore, as described above, since the wall base 42 and wall material 41 are suspended while fixed to the ceiling 20, if an external force is applied in the out-of-plane direction (in this embodiment, the left-right direction), the wall base 42 and wall material 41 may attempt to move out of plane like a pendulum, using the fixed part to the ceiling 20 as a fulcrum. However, in this embodiment, since the fixing wooden piece 45 is fixed to the floor 10 inside the left and right wall material 41 and below the wall base 42, even if an external force is applied in the out-of-plane direction, the movement of the wall base 42 and wall material 41 can be suppressed.

[0059] As described above, in the partition structure 1 according to the embodiment of the present invention, A partition structure in which the space between the ceiling 20 and the floor 10 is divided by a partition wall 40, The aforementioned partition wall 40 is Wall material 41, A frame-shaped wall base 42 supports the aforementioned wall material 41 from the side, It is equipped with, The aforementioned wall base 42 is It is suspended from the ceiling 20 in a fixed position.

[0060] This configuration can improve sound insulation performance.

[0061] Furthermore, in partition structure 1, The structure includes a fixing wooden piece 45 (restricting part) that restricts the movement of the wall base 42, with the fixing point between the wall base 42 and the ceiling part 20 acting as a fulcrum.

[0062] This configuration makes it possible to suppress the movement of the wall substrate 42 and the wall surface material 41.

[0063] Furthermore, in partition structure 1, The aforementioned fixed wooden piece 45 (regulating part) It is fixed to the floor portion 10 below the wall base 42 and to the side of the wall surface material 41.

[0064] With this configuration, the fixing wooden piece 45 (restricting part) is positioned at the position furthest from the fixing point (potential pivot point) between the wall base 42 and the ceiling 20 in the longitudinal direction of the partition wall 40, thereby effectively suppressing movement of the wall base 42 and the wall surface material 41.

[0065] Furthermore, in partition structure 1, The aforementioned fixed wooden piece 45 (regulating part) It is not fixed to the aforementioned wall material 41.

[0066] This configuration effectively suppresses the movement of the wall base 42 and wall surface 41 while suppressing the restraint between the partition wall 40 and the floor 10, and more specifically, the restraint between the wall base 42 and wall surface material 41 (on the ceiling 20 side) and the fixing wooden piece 45 (on the floor 10 side).

[0067] Furthermore, in partition structure 1, A buffer material 46 is provided between the fixed wooden piece 45 (regulating portion) and the wall material 41.

[0068] This configuration helps to suppress damage to the wall material 41 and the fixing wooden piece 45. Furthermore, when an external force is applied to the wall material 41, it helps to suppress the generation of noise caused by contact between the wall material 41 and the fixing wooden piece 45.

[0069] Furthermore, in partition structure 1, The aforementioned fixed wooden piece 45 (regulating part) These are provided so as to be scattered in the width direction of the partition wall 40.

[0070] This configuration effectively suppresses movement of the wall base 42 and wall surface material 41 while suppressing restraint between the partition wall 40 and the floor 10.

[0071] 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.

[0072] 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. Also, for example, the wall base 42 is not limited to being fixed to the furring strips 29 via the ceiling surface material 21 with screws B, but can be fixed to any member constituting the ceiling 20.

[0073] Furthermore, the fixing piece 45 is not limited to wood and can be formed from any material. Also, the configuration of the cushioning material 46 is not limited to that of this embodiment. That is, the cushioning material 46 may be formed as a film by coating the left and right sides of the fixing piece 45 with, for example, an elastic paint. In other words, the cushioning material 46 may be formed as part of the fixing piece 45. [Explanation of symbols]

[0074] 1. Partition structure 10 Floor 20 Ceiling section 40 partition walls 41 Wall materials 42 Wall underlayment

Claims

1. A partition structure that divides the space between the ceiling and the floor with a partition wall, The aforementioned partition wall is Wall materials and A frame-shaped wall base that supports the aforementioned wall material from the side, It is equipped with, The aforementioned wall substrate is The above-mentioned ceiling is suspended in a fixed position. Partition structure.

2. It is equipped with a restricting part that restricts the movement of the wall base with the fixing point between the wall base and the ceiling as a pivot point. The partition structure according to claim 1.

3. The aforementioned regulatory body, It is fixed to the floor below the wall base and to the side of the wall material, The partition structure according to claim 2.

4. The aforementioned regulatory body, The wall material is not fixed to the wall material, The partition structure according to claim 2 or claim 3.

5. A buffer material is provided between the regulating portion and the wall material. The partition structure according to claim 4.

6. The aforementioned regulatory body, They are provided so as to be scattered in the width direction of the aforementioned partition wall, The partition structure according to claim 2.

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