JPH081541U - Dry floor structure - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a dry floor structure having a low floor height, which is excellent in vibration proofness, stability during walking, and habitability. SOLUTION: Each support leg 10 that supports a second floor 5 in a floating state on a foundation floor 1 has a vertical through hole 11a at a substantially central portion, and a lower peripheral portion of the vertical through hole. A receiving plate 11 having a concave portion 11b formed therein, and a bowl-shaped support having a bowl outer shape having a shape corresponding to the concave portion at the lower end of the female screw body 12a fitted in the vertical through holes of the receiving plate. Part 1
2b, a support nut 13 having an upper screw portion 13a screwed onto the seat nut, and a base portion 13b having a circular cross section at a lower end portion thereof; A vibration-proof rubber pedestal 14 which is smaller and has a non-through hole 14a for accommodating the base portion of the support bolt formed in the upper surface of the central portion, and supports the lower surface of the second floor by the receiving plate. The floor height can be adjusted up and down by rotating the support bolt.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a floor-standing structure constructed in an apartment house or the like, and more particularly to a dry floor-standing structure having a low floor height.

[0002]

[Prior art]

 In the conventional construction of multi-story buildings for multiple dwelling houses, the floor of each layer (floor) was constructed by laying resin sheets on a concrete slab, and then applying a floorboard or floor panel on top of it to adopt a direct-floor structure. However, the direct-adhesive floor has poor heat-retaining properties, floor impact sounds are easily generated between the upper and lower floors, and the habitability is not good. For this reason, recently, the number of dry floor constructions in which the space between the concrete slab and the floorboard is increased has been increasing, and there is a strong tendency to reform the current direct-floor floors to dry floor constructions. As shown in FIGS. 3 and 4, a conventional dry floor structure is one in which a floor panel 5 is floated on a foundation floor 1 such as a concrete slab, and is supported via a support leg having a support bolt 3. Is.

As shown in FIG. 3, the support leg body is mainly composed of a support bolt 3, and the support bolt 3 has a base portion 3 b having a circular cross section at its lower end portion formed on the upper surface of the center portion of the vibration-proof rubber pedestal 2. The threaded portion 3a of the support bolt 3 is erected in a state of being rotatably accommodated in the non-through hole 2a, while the threaded portion 3a of the support bolt 3 has a receiving nut 4 having a support portion 4b laterally extended from the lower end of the female threaded body 4a. The female screw body 4a of the receiving nut 4 is fitted into the through hole 5a formed in the floor panel 5 and integrally attached. A rotation engaging portion 3c such as a minus groove is formed on the top end surface of the support bolt 3, and a tip of a rotation tool such as a screwdriver is inserted into the rotation engaging portion 3c to rotate the support bolt 3. By doing so, the receiving nut 4 moves up and down, and the height of the floor panel 5 can be adjusted up and down. This allows the support bolt to rotate relatively smoothly even when a load is applied to the receiving nut of the support leg, and a rubber body is interposed between the lower end of the support bolt and the foundation floor. By doing so, it is possible to obtain a dry floor structure having excellent vibration damping properties.

As another form, as shown in FIG. 4, there is also a structure in which the lower end of the support bolt 3 is directly mounted on the foundation floor (concrete slab) 1 without attaching a vibration proof rubber pedestal. There is a drawback that it is inferior in vibration isolation and stability. When constructing a floor with a higher floor height, long support bolts should be used. On the other hand, when constructing a lower floor, as shown in Figs. The one with the shortest length will be used.

[0005]

[Problems to be solved by the device]

 When trying to lower the height of the floor, there is a limit due to the height of the anti-vibration rubber pedestal and the height of the lower protrusion of the bearing nut, as shown in Figs. 5 and 6. . If the seat nut 4 of FIG. 3 and the support bolt 3 of FIG. 4 are combined, the floor height will be lowered, but the sound insulation, vibration isolation, and natural walking feeling, which are features of the dry floor, will be reduced. There is a problem in practical use because it lacks support stability and habitability. In addition, since the wooden floor panel 5 is directly supported by the metal seat nut 4, floor squeaking (squeaking noise) is likely to occur when walking on the support portion by the support legs. . Currently, there are many cases in which a directly-applied floor is remodeled into a dry floor, and there are cases where the floor height cannot be increased, and there is an increasing demand for floors with a particularly low height. The present invention has been made to solve the above problems, and an object thereof is to provide a dry floor structure with a low floor height, which is excellent in vibration isolation, stability during walking, and quietness. Especially.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the dry floor structure of the present invention is a dry floor structure in which the second floor is floated on the first floor (foundation floor) through the support leg group. Each of the support legs has a vertical through hole in the substantially central portion thereof, and a receiving plate formed with a recessed portion in the lower peripheral portion of the vertical through hole, and fitted into the vertical through hole of the receiving plate. A receiving nut having a bowl-shaped supporting portion having a bowl outer shape having a shape corresponding to the concave portion is formed at the lower end of the female screw portion main body, and an upper screw portion is screwed to the receiving nut. In addition, a support bolt having a base with a circular cross section at its lower end, a cross-sectional size smaller than that of the bowl-shaped support, and a non-through hole for accommodating the base of the support bolt are formed in the upper surface of the substantially central portion. It consists of a swing rubber pedestal and supports the lower surface of the second floor with the above-mentioned receiving plate. Is characterized by being configured so that bed height can vertically adjusted by moving.

According to the above structure, the cross-sectional size of the vibration-proof rubber pedestal is formed smaller than the bowl-shaped support portion of the receiving nut fitted in the recessed portion in the lower peripheral portion of the vertical through hole of the receiving plate. Therefore, when rotating the support bolt to adjust the floor height up and down, the anti-vibration rubber pedestal can enter into the bowl-shaped support portion of the above-mentioned receiving nut, which allows a dry floor structure with a low floor height. Can be In addition, since the wooden floor panel is supported by the wooden backing plate having a width wider than the bowl-shaped support portion of the receiving nut, the wooden floor panel can be stably supported without floor noise.

[0008]

[Embodiment of device]

 An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 are sectional views showing an example of a dry floor structure according to the present invention. In the drawings, reference numeral 10 denotes a support leg body according to the present invention. The support leg body 10 has a receiving plate 11 for supporting the floor panel 5, a receiving nut 12 for supporting the receiving plate 11, The support bolt 13 is screwed to the seat nut 12, and the vibration-proof rubber pedestal 14 is attached to the lower end of the support bolt 13. The receiving plate 11 has a vertical through-hole 11a at substantially the center thereof, and a recess 11b is formed in the lower peripheral portion of the vertical through-hole 11a. The receiving plate 11 is generally made of a wood material such as a laminated board material such as plywood, It has a shape such as a square or a rectangle. On the other hand, the seat nut 12 has a bowl-shaped support having a cylindrical outer shape of a female screw portion 12a and a bowl outer shape of a shape corresponding to the concave portion 11b of the receiving plate 11 formed at the lower end of the female screw body 12a. The lower part of the bowl-shaped support part 12b is formed with a brim part 12c which is expanded in the lateral direction, and is configured to firmly support the lower surface around the recessed part of the receiving plate 11. The receiving nut 12 is firmly fixed to the receiving plate 11 by fitting the female screw main body 12a of the receiving nut 12 into the vertical through hole 11a of the receiving plate 11 and fitting the bowl-shaped supporting portion 12b into the recessed portion 11b. To be done. The anti-vibration rubber pedestal 14 has a cross-sectional size smaller than that of the bowl-shaped support portion 12b of the seat nut 12, and a non-through hole 14a for accommodating the base portion of the support bolt is formed in the substantially central upper surface. A base portion 13b having a circular cross section at the lower end portion of the support bolt 13 is rotatably fitted into the non-through hole 14a of the vibration isolating rubber pedestal 14, and the upper screw portion 13a is screwed into the female screw body 12a of the receiving nut 12. As a result, the support leg 10 is assembled as shown in FIG.

The support legs 10 assembled in this way are arranged on a basic floor (first floor) 1 such as a concrete slab at a predetermined pitch according to the shape of the floor panel 5, and a floor plate is provided by a receiving plate 11. Assemble the dry floor by supporting the lower surface of the peripheral portion of the panel 5 (second floor) or, when using a floor panel in which through holes are formed at a predetermined pitch, supporting the lower surface around the through holes. As in the conventional case, the floor height level is adjusted by inserting the tip of a rotation tool such as a screwdriver into the rotation engaging portion 13c such as a minus groove formed on the top end surface of the support bolt 13 to support the support bolt 13. By rotating. An adhesive layer may be provided on the upper surface of the receiving plate to be used for fixing the floor panel.

FIG. 2 shows the dimensions of the anti-vibration rubber pedestal 14 (cross-sectional dimensions (outer diameter or width): d, height: h) and the bowl-shaped support portion 12 b of the receiving nut 12 (outer diameter or width: D, depth: H), and D> d, H> h. With such a dimensional relationship, as the floor height is adjusted to a low level, the anti-vibration rubber pedestal 14 enters the recessed portion of the bowl-shaped support portion 12b, resulting in a low dry floor structure. It is possible to further increase the floor height adjustment range.

[0011]

[Effect of device]

 The present invention has the configuration described above and has the following effects. In other words, it is possible to construct a dry floor with a low floor height, which is unprecedented, and only a vibration-proof rubber pedestal can be used. An excellent dry floor structure can be constructed. In addition, it is expected that it will be possible to meet the demands of the times by providing a dry floor with a low floor height that can fully respond to the remodeling of a direct-adhesion floor with a low habitability.

[Brief description of drawings]

FIG. 1 is a partial sectional view showing an embodiment of a dry floor structure according to the present invention.

FIG. 2 is a partially enlarged cross-sectional view showing a dimensional relationship of the dry floor structure shown in FIG.

FIG. 3 is a partial cross-sectional view showing an example of a conventional floor-standing structure.

FIG. 4 is a partial cross-sectional view showing another example of a conventional floor placing structure.

FIG. 5 is a partial cross-sectional view showing another example of a conventional floor placing structure.

FIG. 6 is a partial cross-sectional view showing still another example of the conventional floor placing structure.

[Explanation of symbols]

1 foundation floor (first floor), 2,14 anti-vibration rubber pedestal,
3,13 Support bolts, 4,12 Seat nuts, 5 Floor panels (second floor), 10 Support legs, 11 Support plates,
11a Vertical through-hole, 11b Recessed part, 12a Female screw part main body, 12b Bowl-shaped support part, 13a Upper screw part, 1
3b base, 14a non-through hole

Claims (1)

[Scope of utility model registration request] 1. A second support on the first floor via a support leg group.
It is a dry floor structure that puts the floor of the
Each of the support legs has a vertical through hole at a substantially central portion thereof, and a receiving plate having a concave portion formed at a lower peripheral portion of the vertical through hole, and fitted into the vertical through hole of the receiving plate. A receiving nut having a bowl-shaped support portion having a bowl outer shape having a shape corresponding to the recessed portion is formed at the lower end of the internal thread portion main body, and an upper screw portion is screwed onto the receiving nut and the lower end portion is provided. A support bolt having a base with a circular cross section, and a vibration-proof rubber pedestal having a cross-sectional size smaller than that of the bowl-shaped support and a non-through hole for accommodating the base of the support bolt formed in the upper surface of the substantially central portion. A dry floor structure, wherein the lower surface of the second floor is supported by the receiving plate, and the floor height can be adjusted up and down by rotating the support bolt.