JP5823788B2 - Floor structure - Google Patents

Description

  The present invention relates to a floor structure, and more particularly to a double floor structure.

  A floor base material of a double floor is formed by supporting the floor base material at a predetermined height level by supporting leg groups erected on the foundation surface, and a floor finish material is laid on the floor base material via a flooring material. The floor structure is called a dry double floor structure, and is often used in housing complexes and physical education facilities (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 4-85453

  However, when the floor structure for residential use disclosed in Patent Document 1 is diverted for office use, the use of a scraping material may cause an increase in construction process and cost, and is not suitable as a floor structure for office use. There is. This is because the floor structure for office use sometimes uses the space between the foundation surface and the floor base material for the installation of wiring of various electronic devices. This is because it is necessary to remove the scraping material, and the operation becomes complicated.

  Therefore, a floor structure that does not require a stripping material can be provided by using a metal or concrete floor base material. The floor structure using this metal or concrete floor base material has the advantage that seams between the floor base materials (hereinafter sometimes referred to as joints) can be substantially eliminated without using a stripping material. Because there is. Further, the floor base material made of metal or concrete has advantages in terms of weight reduction and ease of processing during construction.

However, in recent years, due to the consideration of the natural environment, wood is used as a floor base material for floor structures for office use as well as floor structures for office use because of the low CO ₂ generation amount in the manufacturing process. It has been recommended. Especially in public spaces where many people gather, such as offices, due to the need for sufficient consideration for the environment and human health and high functionality, safety, and comfort, It has been recommended to use wood. In accordance with this, if the floor base material is arranged so that there is no gap in the joints, the dimensional change due to environmental changes such as temperature and humidity is significant compared to metal and concrete, so the expanded floor base materials press against each other , The joints may be raised or the joint width may increase. As a result, there is a possibility that the pedestrian can easily crawl at the joint part, or the heel part of the high heel fits into the joint part, causing a danger to the walking of the pedestrian. In addition, when a gap of a certain degree or more is formed in the joint, a gap or a dent buried in the joint is generated in the floor finishing material laid on the floor base material according to the gap, so that the appearance is not good. In addition, if the floor base material is arranged so that there is no gap in the joints, the height level of the support legs cannot be adjusted after the floor base material is stretched, so a notch for adjusting the height level of the support legs Must be provided on the floor base material, which also increases the manufacturing cost.

Therefore, wood is used for the floor base material installed on the support leg group erected on the foundation surface, and the height level of the support legs can be adjusted after tensioning the plurality of floor base materials. There has been a demand for a floor structure that ensures safety while avoiding an increase in cost due to the use of metal or concrete for the floor base material.
The present invention has been made to solve the above-described problems of the prior art, and the purpose thereof is to adjust the height level of the support legs after the floor base material made of wood is stretched. The purpose is to provide a floor structure that suppresses an increase in the construction process, has a good aesthetics, and ensures safety.

A floor structure according to claim 1 of the present invention for solving the above-described problems is provided with a plurality of floor support units disposed on a foundation surface, and a predetermined number of the floor surfaces with respect to the foundation surface by the plurality of floor support units. A floor structure comprising a floor base material supported at a height level and a floor finishing material laid on the floor base material,
The floor support unit has a support bolt that changes a height level of the floor base material relative to the foundation surface by rotation with a rotary tool,
The engaging portion of the support bolt that engages the rotary tool is exposed from between the floor base materials installed adjacently so as to straddle the floor support unit, and the joint dimensions between the plurality of floor base materials are: The diameter is smaller than the diameter of the support bolt and larger than the diameter of the rotary tool that rotates the support bolt.

The floor structure according to claim 2 is characterized in that, in the floor structure according to claim 1, the floor base material is made of wood or a wooden material.
The floor structure according to claim 3 is the floor structure according to claim 1, wherein the floor support unit includes a floor contact base disposed on the foundation surface and a floor support base. A support leg installed, and a support plate supported by the support leg and supporting the floor base material,
The support leg is a level adjustment nut fixed to the support plate, and the support bolt is provided so as to be slidable with respect to the level adjustment nut and is rotatably supported by the floor contact base. It is characterized by having.

  The floor structure according to claim 4 is the floor structure according to claim 1, wherein a joint dimension between the plurality of floor base materials installed adjacent to each other so as to straddle the floor support unit is the floor base. It is characterized by being constant in at least one of the length direction and the width direction of the material.

  According to the present invention, since the seam dimension between the floor base materials is smaller than the diameter of the support bolt and larger than the diameter of the rotary tool that rotates the support bolt, the floor base material using wood is obtained. After the tensioning, the height level of the support legs can be adjusted, an increase in manufacturing cost and construction process can be suppressed, and a floor structure with good aesthetics and safety can be provided.

It is a perspective view which shows the structure in one Embodiment of the floor structure concerning this invention. It is side surface sectional drawing of the floor support unit with which the floor structure shown in FIG. 1 is equipped. It is a top view of the schematic part which shows an example of the arrangement | positioning form of the floor base material laid using the floor support unit shown in FIG.

Hereinafter, an embodiment of a floor structure according to the present invention will be described with reference to the drawings.
(Configuration of floor structure)
FIG. 1 is a perspective view showing a configuration in an embodiment of a floor structure according to the present invention. 2 is a side cross-sectional view of a floor support unit provided in the floor structure shown in FIG. FIG. 3 is a plan view of a schematic portion showing an example of an arrangement form of the floor base material laid by using the floor support unit shown in FIG. 2.
As shown in FIG. 1, a floor structure 1 is installed in various buildings such as offices and commercial facilities, and has a plurality of floor support units 10 disposed on a floor surface of a foundation surface 2 such as a concrete slab, and a floor support. A floor base material 20 supported by the unit 10 and a floor finishing material 30 laid directly on the floor base material 20 are provided.

<Floor support unit>
As shown in FIGS. 1 and 2, each floor support unit 10 includes a floor contact base 11 disposed on the foundation surface 2, a support leg 12 erected on the floor contact base 11, and a support leg. And a support plate 15 supported by 12.
[Flooring base]
The floor-contact base 11 is formed in a substantially cylindrical shape as shown in FIG. The material of the floor contact base 11 is appropriately selected according to the purpose as long as it can hold the support bolt 13 without hindering the rotation of the support bolt 13, as will be described later. Material is preferred.
A plurality of (for example, four) presser portions 11 a bent inwardly project from the upper portion of the floor-contact base 11. The presser portion 11a has a concave portion 11b that receives a flange portion 13a (described later) of the support bolt 13 inside the presser portion 11a.
The floor contact base 11 is installed on the base surface 2 with the lower surface of the floor contact base 11 fixed to the base surface 2 by bonding or the like at predetermined intervals.

[Support leg]
As shown in FIG. 2, the support leg 12 includes a support bolt 13 that is rotatably provided on the floor-contact base 11, and a level adjustment nut 14 to which an upper end portion of the support bolt 13 is screwed. It becomes.
As shown in FIG. 2, the support bolt 13 is formed of a relatively short hollow pipe. At the lower end of the support bolt 13, an annular projecting portion (saddle portion) 13 a projecting laterally is buckled. A male screw portion 13b is formed on the upper end portion of the outer peripheral surface of the support bolt 13 by a predetermined length from the upper end. On the upper end surface 13c of the support bolt 13, a groove-like engaging portion 13d for engaging the tip of a rotary tool 40 such as a screwdriver or an electric screwdriver is formed.

Then, the support bolt 13 is attached to the floor contact base 11 by inserting and arranging the flange portion 13a formed at the front end by buckling molding of the lower end portion of the support bolt 13 in the recess 11b of the floor contact base 11. The support bolt 13 is prevented from coming off from the floor contact base 11 while being erected so as to be rotatable.
As shown in FIG. 2, the level adjusting nut 14 is formed of a relatively short hollow pipe that is screwed with the support bolt 13. At the lower end of the inner peripheral surface of the level adjusting nut 14, a female screw portion 14 a that is screwed into the male screw portion 13 b of the support bolt 13 is formed by a predetermined length from the lower end portion. Further, an annular support portion 14b is projected from the substantially vertical central portion of the outer peripheral surface of the level adjusting nut 14.
Then, the support leg 12 is engaged with the female screw part 14a of the level adjusting nut 14 by screwing the upper end part of the male screw part 13b of the support bolt 13 into the entire length of the support leg 12 (from the lower end part of the support bolt 13 to the level). The length up to the upper end of the adjusting nut 14) is variable.

[Support plate]
The support plate 15 is formed by forming a wood or wood material into a substantially rectangular flat plate shape. Here, the above-mentioned wood material is a composite material obtained by restructuring a timber made fine or thin plate using an adhesive or the like. That is, wood is used as a main raw material, but this is not used as it is, but means a wood-based material or wood resource material newly produced by various treatments. Examples of the wood material include particle board, laminated plywood, wood fiber board and the like. Here, the above-mentioned plywood is obtained by sticking wood veneers with an adhesive or the like. The wood fiber board is a chip-shaped piece of wood boiled at high temperature to be defibrated, the fibers are entangled and made into a plate shape by drying.

As shown in FIG. 2, an insertion hole 15 a into which the upper portion of the level adjusting nut 14 is fitted is provided at a substantially central portion of the support plate 15 viewed from the vertical direction.
As shown in FIG. 2, the support leg 12 and the support plate 15 are fitted with the upper end portion of the level adjusting nut 14 of the support leg 12 in the insertion hole 15 a of the support plate 15, and the lower surface of the support plate 15 is covered. The level adjusting nut 14 is combined by being supported by the support portion 14b.

  In the floor support unit 10 configured as described above, the tip of the rotary tool 40 such as a screwdriver is fitted into the engaging portion 13d formed on the upper end surface of the support bolt 13, and the support bolt 13 is inserted into the rotary tool 40. , The support plate 15 supported by the level adjustment nut 14 is moved in the vertical direction. Thereby, the height level with respect to the base surface 2 of the floor base material 20 supported by the support plate 15 can be adjusted.

<Floor base material>
As the floor base material 20, wood or wood material is used. Examples of the wood material include particle board, hard board, high density fiber board, and plywood. As shown in FIG. 2, the floor base material 20 is fixed to the upper surface of the support plate 15 of the floor support unit 10 with an adhesive, a nail, or the like, and is supported at a predetermined height level with respect to the base surface 2. .
<Floor finishing material>
As the floor finishing material 30, a synthetic resin cushion sheet, carpet, carpet, tile carpet, or the like can be used. The floor finish 30 shown in FIG. 1 is an example of a tile carpet.

(Installation example)
Next, an installation form example of the floor structure 1 will be described.
<Installation of floor support unit>
In installation of the floor structure 1, first, a plurality of floor support units 10 are installed on the foundation surface 2 at a predetermined pitch corresponding to the shape of the floor base material 20. For example, as shown in FIG. 3, when the dimension of the floor base material 20 is 1820 mm in length × 450 mm in width, the floor base material 20, 20 adjacent to the width direction is supported, and the length of the floor base material 20 is Five floor support units 10 are arranged. Out of these five floor support units 10, the outermost two are disposed so as to also support the floor base material 20 adjacent in the length direction. The space | interval of the floor support units 10 arrange | positioned in the length direction of these floor base materials 20 is 457 mm, for example.

<Installation of floor base material>
Then, the floor base material 20 is installed on the support plate 15 of each floor support unit 10 in a state where the edge of the floor base material 20 is supported by each support plate 15. In this case, the floor base material 20 is installed with a predetermined gap (seam dimension D) so that the engaging portions 13d of the support bolts 13 are exposed from the edge of the floor base material 20. At this time, it is preferable that the joint dimension D of the adjacent floor base materials 20 and 20 is constant in at least one of the length direction and the width direction of the floor base materials 20 and 20. The “constant” means that the minimum distance in at least one of the length direction and the width direction of the floor base materials 20 and 20 is larger than d ₂ , and at least any of the length direction and the width direction of the floor base materials 20 and 20. maximum interval is defined to be smaller than d ₁ in pressure. The support plate 15 and the floor base material 20 of each floor support unit 10 are fixed using an adhesive sheet 50 or the like. In addition, the arrangement | positioning form of the floor base material 4 may be arranged in parallel as shown in FIG. 3, and may be arranged in zigzag form.

<Adjusting the floor base material height level>
Then, the rotary tool 40 is inserted from above the support plate 15 of each floor support unit 10 and the support bolt 12a is rotated via the engaging portion 13d, so that a plurality of floor base materials 20 supported by the support plate 15, Adjust the height level of 20.
Such an operation is repeated with the floor base material 20, and the floor base material 20 is laid uniformly on the base surface 2 and the height level of the floor base material 20 with respect to the base surface 2 is adjusted to a predetermined height. To do.

[Dimensions between floor base materials]
The seam dimension D between the floor base materials 20 and 20 installed adjacent to each other so as to straddle the floor support unit 10 is smaller than the diameter d _{1 of the} support bolt 13 and the diameter of the rotary tool 40 that rotates the support bolt 13. greater than d _2. That is, the seam dimension D between the floor base materials 20 and 20 has at least room for the rotary tool 40 to enter between the floor base materials 20 and 20 so that the support bolt 13 can be rotated, and between the floor base materials 20 and 20. The dimension is set so that the support bolt 13 does not enter. Specific dimensions of the joint dimension D between the floor base materials 20 and 20 are, for example, 7 mm to 9 mm. In addition, the seam dimension between the floor base materials in the conventional floor structure in which the height level of the support bolt can be adjusted after the floor base material is stretched is generally 12 mm to 15 mm.

Here, when the joint dimension D between the floor base materials 20 and 20 is made smaller than the diameter d ₁ of the support bolt 13, the support bolt 13 is rotated by the rotary tool 40 to shorten the entire length of the support leg 12. The upper end portion of the support bolt 13 hits the floor base materials 20 and 20, and the level height of the floor base material 20 may not be lowered to a certain extent. In such a case, the level of the floor base material 20 is adjusted by replacing the support bolt 13 with a short overall length and rotating the support bolt 13 with the rotary tool 40.

  By installing the floor base materials 20 and 20 adjacent to each other with such a seam dimension D, it is not necessary to lay a flooring material such as veneer under the floor finishing material. , The process is shortened, "" the heel part of the high heel does not fit into the joint, "" the height level of the support bolt can be adjusted after the floor base material is stretched, "" The effect is that “the increase can be suppressed”. And as a result, after stretching the floor base material using wood, the height level of the support legs can be adjusted, the increase in manufacturing cost and construction process is suppressed, the appearance is good, and the safety is secured. A floor structure can be provided.

<Installation of floor finish>
Then, the floor finishing material 30 is laid uniformly on the floor base material 20 to complete the installation of the floor structure 1.
As mentioned above, although embodiment of this invention has been described, this invention is not limited to this, A various change and improvement can be performed. For example, in this embodiment, the support bolt 13 and the level adjusting nut 14 constituting the support leg 12 have a hollow structure. However, according to the object of the present invention, the support bolt 13 or level having a non-hollow structure is used. An adjusting nut 14 may be used.

DESCRIPTION OF SYMBOLS 1 Floor structure 2 Base surface 10 Floor support unit 12 Support leg 13 Support bolt 14 Level adjustment nut 15 Support plate 20 Floor base material 30 Floor finish material

Claims (4)

A plurality of floor support units disposed on a base surface, a plurality of floor base materials supported at a predetermined height level with respect to the base surface by the plurality of floor support units, and the plurality of floor base materials A floor structure comprising a plurality of floor finishing materials laid on the floor,
The floor support unit has a support bolt that changes a height level of the floor base material relative to the foundation surface by rotation with a rotary tool,
An engagement portion of the support bolt that engages the rotary tool is exposed from between the plurality of floor base materials installed adjacent to each other so as to straddle the floor support unit, and a seam dimension between the plurality of floor base materials The floor structure is smaller than the diameter of the support bolt and larger than the diameter of the tool for rotating the rotating bolt.   The floor structure according to claim 1, wherein the floor base material is made of wood or wood material. The floor support unit is configured to support a floor contact base that is disposed on the foundation surface, a support leg that is erected on the floor contact base, the support leg, and the floor base material. A support plate,
The support leg is a level adjustment nut fixed to the support plate, and the support bolt is provided so as to be slidable with respect to the level adjustment nut and is rotatably supported by the floor contact base. The floor structure according to claim 1, comprising:   The seam dimension between the plurality of floor base materials installed adjacently so as to straddle the floor support unit is constant in at least one of a length direction and a width direction of the floor base material. Item 2. The floor structure according to Item 1.

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