JP7534941B2 - Partition wall - Google Patents

Description

The present invention relates to a partition wall in which a pair of panel materials are provided on both sides of a frame body formed by bridging a horizontal frame material between a pair of vertical frame materials.

A partition wall has been known in the past in which a frame body is formed by bridging a horizontal frame member between a pair of vertical frame members, and both sides of the frame body are sandwiched between a pair of panel members such as plaster boats, and the pair of panel members are fixed to the frame body (see, for example, Patent Document 1).

Japanese Patent Application Publication No. 6-346550

However, in conventional partition walls, a pair of panel materials are fixed in contact with both sides of the vertical frame material and both sides of the horizontal frame material. Therefore, in order to widen the gap between the pair of panel materials, it is necessary to increase the thickness of the frame body, which creates the problem of increasing the cost of the frame body.

The present invention was made with the above problem in mind, and aims to provide a partition wall that can suppress increases in the cost of the frame, regardless of the spacing between a pair of panel materials.

In order to achieve the above object, the present invention provides a partition wall comprising a frame body formed by bridging a plurality of horizontal frame members between a pair of vertical frame members, and a pair of panel members facing each other across the frame body. Here, the pair of panel members are fixed to each of the pair of vertical frame members. Also, only one of the pair of panel members is fixed to at least one of the plurality of horizontal frame members via a joint material. The joint material penetrates one panel member fixed to the horizontal frame members and the horizontal frame member, and its tip comes into contact with the other panel member not fixed to the horizontal frame members.

Therefore, the partition wall of the present invention can suppress increases in the cost of the frame body regardless of the spacing between the pair of panel materials.

FIG. 2 is a horizontal cross-sectional view showing the internal structure of a building equipped with a partition wall according to the first embodiment. FIG. 2 is an exploded perspective view showing the partition wall of the first embodiment. 1A is a vertical cross-sectional view showing a partition wall of the first embodiment, and FIG. 1B is a horizontal cross-sectional view showing the partition wall of the first embodiment. 1A is an explanatory diagram showing a second bonding material used in the partition wall of Example 1, and FIG. 1B is an explanatory diagram showing a modified example of the second bonding material of Example 1. FIG. 1 is an explanatory diagram showing the transmission of force when a force is input from a first panel material to a second panel material in the partition wall of Example 1. FIG. 1 is an explanatory diagram showing the transmission of force when a force is input from the second panel material to the first panel material in the partition wall of Example 1. FIG. A figure showing the results of an out-of-plane bending stiffness test of the partition wall of Example 1 and the results of an out-of-plane bending stiffness test of the partition wall of the comparative example. 1A is a vertical cross-sectional view showing a partition wall of Example 2, and FIG. 1B is an explanatory diagram showing a second bonding material used in the partition wall of Example 2. FIG. A figure showing the results of an out-of-plane bending stiffness test of the partition wall of Example 2 and the results of an out-of-plane bending stiffness test of the partition wall of the comparative example. FIG. 11 is an exploded perspective view showing a partition wall according to a third embodiment. FIG. 11 is a vertical cross-sectional view showing a partition wall according to a third embodiment.

Below, we will explain how to implement the partition wall of the present invention based on Examples 1 to 3 shown in the drawings.

Example 1
The partition wall 10 of the first embodiment is installed in an indoor space 2 of a building 1 such as a unit building shown in Fig. 1, and is used to divide the inside of the indoor space 2. In the example shown in Fig. 1, the inside of the indoor space 2 is divided by two partition walls 10, 10, and three rooms are formed: a living room 2A, a dining/kitchen room 2B, and a bedroom 2C.

2, the partition wall 10 of the first embodiment includes a frame body 11, a pair of panel materials 14a, 14b that sandwich the frame body 11, and a plurality of joining materials 15 that fix each of the panel materials 14a, 14b to the frame body 11. In the following description, the thickness of the partition wall 10 is the direction in which the pair of panel materials 14a, 14b face each other, the height is the vertical direction when the partition wall 10 is installed in the indoor space 2, and the width is the direction perpendicular to the height and thickness.

The frame body 11 has a pair of vertical frame members 12, 12 and multiple horizontal frame members 13.

The pair of vertical frame members 12, 12 are each rectangular pieces of wood or steel that extend in the height direction and are arranged at a specified distance in the width direction.

The multiple horizontal frame members 13 are square timbers made of wood or steel that extend in the width direction, and are spanned between a pair of vertical frame members 12, 12. Both ends of each horizontal frame member 13 are sandwiched between a pair of vertical frame members 12, 12 and fixed with nails or the like. Here, the multiple horizontal frame members 13 have an upper end horizontal frame member 13a, a lower end horizontal frame member 13b, and an intermediate horizontal frame member 13c. The upper end horizontal frame member 13a spans between the upper ends of the pair of vertical frame members 12, 12. The lower end horizontal frame member 13b spans between the lower ends of the pair of vertical frame members 12, 12. The intermediate horizontal frame members 13c are arranged between the upper end horizontal frame member 13a and the lower end horizontal frame member 13b, and multiple intermediate horizontal frame members 13c are provided at regular intervals in the height direction. In the example shown in FIG. 2, five intermediate horizontal frame members 13c are provided.

As shown in Fig. 3(a) and Fig. 3(b), the thickness W3 of each horizontal frame member 13 is set to be thinner than the thickness W2 of the pair of vertical frame members 12, 12. Furthermore, one side surface 13d of each horizontal frame member 13 in the thickness direction is flush with one side surface 12d of each vertical frame member 12 in the thickness direction. A step is generated between the other side surface 12e of each vertical frame member 12 in the thickness direction and the other side surface 13e of each horizontal frame member 13 in the thickness direction. In the following, one side surface of the frame body 11 in which one side surface 12d of the vertical frame member 12 and one side surface 13d of the horizontal frame member 13 are flush with each other is referred to as the first side surface. In addition, the other side surface of the frame body 11 in which a step is generated between the other side surface 12e of the vertical frame member 12 and the other side surface 13e of the horizontal frame member 13 is referred to as the second side surface.

The pair of panel materials 14a, 14b are flat plate materials made of gypsum board, calcium silicate board, ALC board (Autoclaved Lightweight Aerated Concrete), etc. In the following, one panel material covering the first side surface of the frame body 11 is referred to as the first panel material 14a, and the other panel material covering the second side surface of the frame body 11 is referred to as the second panel material 14b.

The first panel material 14a is fixed to the pair of vertical frame materials 12, 12 and all of the multiple horizontal frame materials 13 via the joining material 15. In other words, when the first panel material 14a is fixed to the frame body 11, it comes into contact with the pair of vertical frame materials 12, 12 and all of the multiple horizontal frame materials 13.

The second panel material 14b is fixed only to the pair of vertical frame materials 12, 12 via the joining material 15, and is not fixed to the horizontal frame material 13. In other words, when the second panel material 14b is fixed to the frame body 11, it only comes into contact with the pair of vertical frame materials 12, 12, and does not come into contact with the multiple horizontal frame materials 13.

The joining material 15 is a rod-shaped member such as a screw or a nail, and includes a first joining material 15a that fixes the first panel material 14a and the second panel material 14b to the vertical frame material 12, and a second joining material 15b that fixes the first panel material 14a to the horizontal frame material 13.

The first joining material 15a has a screw shape with a helical thread formed on the circumferential surface of the body, and penetrates each panel material 14a, 14b and is screwed into the vertical frame material 12. At this time, as shown in Figure 3 (b), the first joining material 15a does not penetrate the vertical frame material 12, and the tip fits inside the vertical frame material 12.

As shown in FIG. 4(a), the second joining material 15b has a screw shape with a helical thread formed on the circumferential surface of the body, and a flat surface 15d perpendicular to the axial direction is formed at the tip 15c. As shown in an enlarged view in FIG. 3(a), the second joining material 15b penetrates the first panel material 14a and the horizontal frame material 13, and the flat surface 15d formed at the tip 15c comes into contact with the second panel material 14b.

As shown in FIG. 4(a), the second bonding material 15b of Example 1 has a tip 15c of the body tapered toward the flat surface 15d. In this case, the second bonding material 15b is more likely to penetrate the first panel material 14a and the horizontal frame material 13. However, the shape of the second bonding material 15b is not limited to this. For example, as shown in FIG. 4(b), the body may have the same thickness over its entire length, and a flat surface 15d may be formed at the tip 15c. In this case, it is possible to ensure a larger area for the flat surface 15d than the second bonding material 15b of Example 1, which has a tapered body.

Next, the function of the partition wall 10 in Example 1 will be explained.

Traditionally, in the construction industry, partition walls have been used that have panels on both sides of a frame. Gypsum board is commonly used as the panel material for partition walls because it has excellent fire resistance and is inexpensive. However, inexpensive gypsum board is brittle, so it is integrated with the wood or steel used as the frame to support the input load, thereby satisfying the out-of-plane bending rigidity and impact resistance required of partition walls.

In contrast, in the partition wall 10 of Example 1, the first panel material 14a and the second panel material 14b are fixed to the vertical frame material 12 of the frame body 11. The first panel material 14a is also fixed to a plurality of horizontal frame materials 13. Meanwhile, the second panel material 14b is not fixed to the horizontal frame material 13, and a gap is generated between the horizontal frame material 13 and the second panel material 14b by the step generated between the other side surface 12e of the vertical frame material 12 and the other side surface 13e of the horizontal frame material 13. The second joining material 15b that fixes the first panel material 14a to the horizontal frame material 13 penetrates the first panel material 14a and the horizontal frame material 13, and the flat surface 15d formed at the tip portion 15c contacts the second panel material 14b.

As a result, when a force F is input in the thickness direction from the outside of the first panel material 14a toward the second panel material 14b, as shown in FIG. 5, the force F is transmitted from the first panel material 14a to the horizontal frame material 13 and the second bonding material 15b. Then, the force F transmitted to the second bonding material 15b is transmitted to the second panel material 14b from the tip portion 15c of the second bonding material 15b. Also, when a force F' is input in the thickness direction from the outside of the second panel material 14b toward the first panel material 14a, as shown in FIG. 6, the force F' is input from the second panel material 14b to the second bonding material 15b. Then, the force F' input to the second bonding material 15b is transmitted to the horizontal frame material 13 via the second bonding material 15b, and is transmitted from the horizontal frame material 13 to the first panel material 14a.

Thus, in the partition wall 10 of Example 1, the second panel material 14b is not fixed to the horizontal frame material 13, and a gap is generated between the horizontal frame material 13 and the second panel material 14b, but force can be transmitted between the pair of panel materials 14a, 14b via the second bonding material 15b. Furthermore, force input can also be transmitted to the horizontal frame material 13 via the second bonding material 15b.

As a result, the partition wall 10 of Example 1 can support the input load by integrating the pair of panel materials 14a, 14b with the vertical frame material 12 and horizontal frame material 13 of the frame body 11, and can satisfy the required out-of-plane bending rigidity and impact resistance performance. In addition, the thickness W3 of the horizontal frame material 13 can be set arbitrarily, regardless of the spacing between the pair of panel materials 14a, 14b. In other words, the partition wall 10 of Example 1 can reduce the material volume of the frame body 11 by making the thickness W3 of the horizontal frame material 13 thinner than the thickness W2 of the vertical frame material 12 while ensuring the necessary performance such as out-of-plane bending rigidity. As a result, it is possible to suppress the increase in cost of the frame body 11, regardless of the spacing between the pair of panel materials 14a, 14b.

In addition, in the partition wall 10 of Example 1, the tip 15c of the second bonding material 15b that transmits force between the pair of panel materials 14a, 14b is formed with a flat surface 15d that contacts the second panel material 14b. This makes it difficult for the second bonding material 15b to pierce the second panel material 14b when transmitting force between the pair of panel materials 14a, 14b, and allows for stable transmission of force.

In addition, in the partition wall 10 of Example 1, all of the horizontal frame members 13 are fixed to the first panel member 14a. Therefore, the force transmitted between the pair of panel members 14a, 14b can be transmitted to all of the horizontal frame members 13. This improves the out-of-plane bending rigidity and impact resistance of the partition wall 10.

The out-of-plane bending stiffness of a partition wall can be confirmed based on the relationship between the panel material displacement and the compressive load measured by the out-of-plane bending stiffness test. In other words, the out-of-plane bending stiffness of a partition wall can be determined to be higher the greater the compressive load relative to the panel material displacement. The "out-of-plane bending stiffness test" is a test in which the upper and lower ends of the partition wall are supported, and the middle part of the partition wall is pressed horizontally using a hydraulic jack or similar.

The partition wall in which a pair of panel materials are fixed in contact with both sides of the vertical frame material and both sides of the horizontal frame material is designated as the "partition wall of the comparative example." In this case, when the results of the out-of-plane bending stiffness test of the partition wall 10 of Example 1 are compared with the results of the out-of-plane bending stiffness test of the partition wall of the comparative example, the relationship between the panel material displacement amount and the pressing load is almost the same, as shown in Figure 7. In other words, it can be seen that the partition wall 10 of Example 1 can ensure the same degree of out-of-plane bending stiffness as the partition wall of the comparative example.

As shown in FIG. 7, the breaking load can be set to approximately the same value between the partition wall 10 of Example 1 and the partition wall of the comparative example. This demonstrates that the partition wall 10 of Example 1 can satisfy the same degree of out-of-plane bending rigidity and strength as the partition wall of the comparative example.

Example 2
As shown in Fig. 8(a), the partition wall 10A of Example 2 includes a frame body 11, a pair of panel materials 14a, 14b sandwiching the frame body 11, and a plurality of bonding materials 15 for fixing each of the panel materials 14a, 14b to the frame body 11. Here, among the bonding materials 15 of Example 2, the second bonding material 16 for fixing the first panel material 14a to the horizontal frame material 13 has a pointed tip portion 16b of the body and does not have a flat surface, as shown in Fig. 8(b). In this case, the second bonding material 16 can easily penetrate the first panel material 14a and the horizontal frame material 13.

When comparing the results of the out-of-plane bending stiffness test of the partition wall 10A of Example 2 with the results of the out-of-plane bending stiffness test of the partition wall of the comparative example, as shown in Figure 9, the change in pressure load relative to the change in panel material displacement can be made approximately the same until destruction. Therefore, even the partition wall 10A of Example 2 can satisfy the required out-of-plane bending stiffness and impact resistance.

Example 3
As shown in Fig. 10, the partition wall 10B of the third embodiment includes a frame body 11, a pair of panel materials 14a, 14b sandwiching the frame body 11, and a plurality of joining materials 15 fixing each of the panel materials 14a, 14b to the frame body 11. Here, the frame body 11 includes a pair of vertical frame materials 12, 12 extending in the height direction, and a plurality of horizontal frame materials 13 that are bridged between the pair of vertical frame materials 12, 12 and arranged at a predetermined interval along the height direction. Each of the plurality of horizontal frame materials 13 has a thickness W3 set to be thinner than the thickness W2 of the pair of vertical frame materials 12, 12.

Furthermore, the multiple horizontal frame members 13 (seven in Example 3) have a first horizontal frame member 13α and a second horizontal frame member 13β that are arranged alternately along the height direction, as shown in FIG. 11. The "first horizontal frame member 13α" is a horizontal frame member in which one side surface 13d in the thickness direction is flush with one side surface 12d in the thickness direction of each vertical frame member 12, and a step is created between the other side surface 13e and the other side surface 12e in the thickness direction of each vertical frame member 12. The "second horizontal frame member 13β" is a horizontal frame member in which the other side surface 13e in the thickness direction is flush with the other side surface 12e in the thickness direction of each vertical frame member 12, and a step is created between one side surface 13d in the thickness direction and one side surface 12d in the thickness direction of each vertical frame member 12.

The first panel material 14a is fixed to the first horizontal frame material 13α, and the second panel material 14b is fixed to the second horizontal frame material 13β. That is, the multiple horizontal frame materials 13 are arranged at a predetermined interval along the height direction (vertical direction), and the first horizontal frame material 13α to which one of the pair of panel materials 14a, 14b (the first panel material 14a) is fixed and the second horizontal frame material 13β to which the other of the pair of panel materials 14a, 14b (the second panel material 14b) is fixed are arranged alternately.

The second joining material 15b that penetrates the first panel material 14a and the first horizontal frame material 13α has its tip 15c in contact with the second panel material 14b. On the other hand, the second joining material 15b that penetrates the second panel material 14b and the second horizontal frame material 13β has its tip 15c in contact with the first panel material 14a.

As a result, in the partition wall 10B of Example 3, each of the pair of panel materials 14a, 14b can be fixed to one of the multiple horizontal frame materials 13. In addition, since the first horizontal frame material 13α to which the first panel material 14a is fixed and the second horizontal frame material 13β to which the second panel material 14b is fixed are arranged alternately, each panel material 14a, 14b can be fixed to the multiple horizontal frame materials 13 in a balanced manner over the entire surface.

As a result, the connection strength between each of the pair of panel materials 14a, 14b and the frame body 11 can be ensured. Therefore, for example, even if a force acts in the thickness direction when a shelf or the like is provided on the second panel material 14b, the second panel material 14b with the shelf or the like provided thereon can be prevented from coming off the frame body 11.

The partition wall of the present invention has been described above based on Examples 1 to 3, but the specific configuration is not limited to Examples 1 to 3, and design changes and additions are permitted as long as they do not deviate from the gist of the invention as defined by each claim in the scope of the claims.

In the partition wall 10 in Example 1, the first joining material 15a and the second joining material 15b each have a screw shape with a thread on the circumferential surface of the body, but this is not limited to this. The joining material 15 only needs to penetrate one panel material and horizontal frame material and have its tip contact the other panel material, so the circumferential surface of the body may have a smooth nail shape, for example.

In the partition wall 10 of the first embodiment, the thickness W3 of all the horizontal frame members 13 is set to be thinner than the thickness W2 of the vertical frame member 12, and the first panel member 14a is fixed to all the horizontal frame members 13, but this is not limited to the above. Any one of the horizontal frame members 13 may be fixed to one of the pair of panel members 14a, 14b. Therefore, for example, the thickness W3 of the upper horizontal frame member 13a and the lower horizontal frame member 13b is set to be approximately the same as the thickness W2 of the vertical frame member 12, and only the thickness W3 of the middle horizontal frame member 13c is set to be thinner than the thickness W2 of the vertical frame member 12. Then, both the first panel member 14a and the second panel member 14b may be fixed to the upper horizontal frame member 13a and the lower horizontal frame member 13b, and only the first panel member 14a may be fixed to the middle horizontal frame member 13c.

In addition, in the partition wall 10B of Example 3, the first horizontal frame member 13α to which the first panel material 14a is fixed and the second horizontal frame member 13β to which the second panel material 14b is fixed are arranged alternately, but this is not limited to the above. For example, only the first panel material 14a may be fixed to the horizontal frame member 13 arranged at the top of the frame body 11, and only the second panel material 14b may be fixed to the horizontal frame member 13 arranged at the bottom of the frame body 11. In other words, the first horizontal frame member 13α and the second horizontal frame member 13β do not have to be arranged alternately.

In addition, in the partition wall 10 of Example 1, an example was shown in which multiple intermediate horizontal frame members 13c were provided, but this is not limited to this. The frame body 11 only needs to have at least an upper end horizontal frame member 13a and a lower end horizontal frame member 13b as the horizontal frame members 13. Therefore, the number of intermediate horizontal frame members 13c can be set as desired, and intermediate horizontal frame members 13c do not need to be provided. Furthermore, the horizontal frame members 13 do not need to extend in the width direction, and may extend at an angle to the width direction.

10, 10A, 10B Partition wall 11 Frame body 12 Vertical frame member 13 Horizontal frame member 14a First panel member 14b Second panel member 15, 16 Joining member 15a First joining member 15b Second joining member 15c, 16b End portion 15d Flat surface

Claims (4)

A partition wall comprising a frame body formed by bridging a plurality of horizontal frame members between a pair of vertical frame members, and a pair of panel members facing each other across the frame body,
The pair of panel materials are fixed to the pair of vertical frame members, respectively.
Only one of the pair of panel materials is fixed to at least one of the plurality of horizontal frame materials via a joining material,
A partition wall characterized in that the joining material penetrates one panel material fixed to the horizontal frame material and the horizontal frame material, and a tip portion of the joining material contacts the other panel material that is not fixed to the horizontal frame material. The partition wall according to claim 1,
A partition wall, characterized in that each of the plurality of horizontal frame members has one of the pair of panel members fixed thereto. In the partition wall according to claim 1 or 2,
A partition wall, characterized in that the tip of the joining material is formed with a flat surface that comes into contact with the other panel material that is not fixed to the horizontal frame material. In the partition wall according to any one of claims 1 to 3,
A partition wall characterized in that the multiple horizontal frame members are arranged at predetermined intervals along the height direction, and a horizontal frame member to which one of the pair of panel materials is fixed and a horizontal frame member to which the other of the pair of panel materials is fixed are arranged alternately.