JP2002188274A - Floor supporting construction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor supporting construction capable of firmly supporting even against great vibration of floor board members and of easily permitting the execution of work. SOLUTION: At a double floor bearing a floor board member 1 through a plurality of supporting leg bodies A, a part of supporting leg bodies in a plurality of supporting leg bodies A comprises a through hole inscribed in a through-hole of a receiving board piece touching a floor board base member and the receiving board piece 4, a cylindrical fittings 7 having a female screw hole, a supporting leg 9 formed with a male screw through the whole length fitted to the female screw hole of the cylindrical fittings, a lower portion of the supporting leg 9 is fitted and inserted, a bottom end having an elastic supporting base 12 in contact with a floor base at the lower end, a female screw hole fitted to the male screw of the supporting leg, a hook holding base 14 which can be screwed and fixed to the supporting leg in an height position adjustable manner from the floor base, anchor 15 for catching more than one hook placed in the floor base at a position with an adequate separation distance from the supporting leg, hooks attached to the hook attaching board and hook attaching anchors at both the ends, and a rod-shaped coupling fittings 18 for length adjustment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor structure for a double floor of a building, and more particularly to a support structure for a high floor double floor having a height under the floor exceeding about 300 mm.

[0002]

2. Description of the Related Art In a double floor having supporting legs between a floor base and a floor plate of a building, the height of the underfloor space between the floor base and the floor plate is generally less than 300 mm. However, since a moat kotatsu, underfloor storage, etc. are installed in a building, a higher underfloor height may be secured. In this case, the length of the support legs becomes longer, which causes floor noise when walking, and particularly, a large rolling of the floor plate material occurs due to an earthquake or the like, causing displacement such as swelling of the floor plate material, and eventually the support leg. May be bent and the floorboard may collapse.

[0003] Japanese Utility Model Publication No. 57-15964 discloses a method of preventing floor sway by connecting and fixing an intermediate portion of a support leg and a lower end of a floor plate with an auxiliary support member such as a V-shaped, inverted conical or trapezoidal shape. Is disclosed.

Japanese Patent Application Laid-Open No. Hei 9-30368 discloses that a connecting member disposed at the upper end of a supporting leg is firmly connected to an erecting member below a floor plate, and a base member (rubber elastic body) disposed at a lower end of the supporting leg is a floor base. It is disclosed that a large vibration can be absorbed by placing the slidably on the slab.

It is an object of the present invention to propose a floor support structure which has a different structure from those of the known examples and which can firmly support even a large swing of a floor plate and can be easily constructed.

[0006]

SUMMARY OF THE INVENTION The present invention is directed to a double floor in which a floorboard material in which a floorboard base material and a floor finishing material are laminated on a floor base of a building via a plurality of support legs is mounted. A part of the plurality of support legs has a through hole, a receiving plate piece fixed in contact with the floor plate base, and a female screw in contact with the through hole of the receiving plate piece; A cylindrical fitting made of a cylindrical body having a hole, a support leg formed with a male screw that fits into a female screw hole of the cylindrical fitting over the entire length, an upper insertion portion into which the lower part of the support leg is inserted, and a lower end contacting the floor base. , Consisting of an elastic support plate having a plate-shaped support portion expanded toward the lower end,
In addition, it has a female screw hole that fits into the male screw of the support leg, and a hook hooking plate that can be screwed and fixed to the support leg so that the height position from the floor base can be adjusted, and a floor plate at a position appropriately separated from the support leg A bar-shaped connection having at least one hook-hook anchor anchored and hooks hooked on both ends of the hook-hook board and hook-hook holes of the hook-hook anchor, and having an adjustable length. And a floor support structure composed of metal fittings.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings. FIG. 1 is an overall schematic side view of a support structure in a double floor according to the present invention. FIG. 2 is an enlarged sectional view (partial side view) of the support leg A of the present invention. In double floor, floor board 1
Is formed by laying a floor finishing material 3 on a plurality of floor plate base materials 2 without any gap.

The floor finishing material 3 is, for example, a veneer-attached plywood composed of a laminate of a wooden decorative thin plate (also referred to as a veneer) / wooden plywood, or a laminated structure of a veneer-attached plywood / discarding material,
Alternatively, it has a known laminated structure such as a laminated structure of a veneer-attached plywood / floor heating mat / discharge material / sound insulation sheet (not shown), and the overall thickness of the floor finishing material is about 10 to 50 mm. Of these, the waste material is made of particle board or plywood, and the floor heating mat is, for example, various organic or inorganic sheet laminates or mats with a water pipe for circulating hot water, and the sound insulation sheet is a bituminous material. And various resins and the like mixed with heavy powder materials such as iron compounds and barium compounds, and these materials are also well known.

A supporting leg A and a supporting leg A 'are erected below a floor plate base 2 made of wood plywood, particle board, wood wool cement or the like. The supporting legs may be all supporting legs A without using the supporting legs A ′, or the supporting legs A ′ may be used as most of the supporting legs, and the supporting legs may be partially supported. The leg A may be adopted and can be appropriately designed.

The supporting leg A is made of a receiving plate piece 4 made of wood or resin, which is in contact with the floor plate base material 2, and a cylindrical body which is inscribed in a through hole of the receiving plate piece 4 and has a female screw hole 5. A cylindrical metal fitting 7, a supporting leg 9 made of metal or resin and the like having a male screw 8 formed in the entire length of the female screw hole 5 of the cylindrical metal fitting 7, and an upper insertion portion 10 for inserting a lower portion of the supporting leg 9. ,
An elastic support board 12 having a board-shaped support portion 11 whose lower end is in contact with the floor base B and is enlarged toward the lower end is included.

In the support legs A and A 'of this embodiment, a flange 6 is provided at the lower end of the cylindrical metal fitting 7, and a rubber lining (a rubber lining) is provided on the contact surface of the cylindrical metal fitting 7 including the flange with the receiving plate piece 4. (Not shown) is preferably applied, so that the vibration proof and the sound proof are improved.

The elastic support plate 12 is entirely made of a rubber elastic body. More specifically, various rubbers such as butadiene-styrene rubber, butyl rubber, nitrile rubber, chloroprene rubber, urethane rubber, and silicone rubber are used. The hardness is adjusted depending on the degree of sulfur or crosslinking, and various organic and inorganic additives are added to improve weather resistance, heat resistance, and mechanical strength. The rubber hardness (HsA) is related to the size and the detailed structure of the elastic support and is not specified, but is appropriately set at 50 ° to 90 °. The board-shaped support portion 11 of the elastic support board 12 exhibits a spring action such as a leaf spring, and alleviates, attenuates, and blocks sound and vibration (sound) propagated from above. Further, the disk-shaped support 1
By arranging a large number of protrusions 11a at the lower end of 1, vibration can be further absorbed.

Further, in addition to the configuration of the support leg A, the support leg A has a female screw hole 13 that fits into the male screw 8 disposed on the entire length of the support leg 9. For example, a metal hook hooking board 14 screwed and fixed to a position corresponding to a half of the height of the support leg, and one or more of the floor boards B placed at a position appropriately separated from the support leg 9 are installed. Hook anchors 15 and hook engagement holes 16a, 1
6b, and has a hook 17a, 17b to be hooked on the hook 6b, and a rod-shaped connection fitting 18 whose length can be adjusted.

The supporting leg A 'is the same as the supporting leg A except that the hooking board, the hooking anchor, and the rod-shaped connecting bracket are omitted, but the present invention is not limited to this. For example, a simple structure including only the support legs and the elastic support plate may be employed.

In the support leg A, the hook hooking plate 1
4 is screwed to the appropriate height position of the support leg 9, and is fixed to the hook leg 14.
Nuts (hex nuts) 14a and 14b having female screw holes to be fitted into the male screw 8 are arranged.

The hook anchor 15 is preferably a hole-in anchor, that is, a hole having a diameter slightly larger than that of the anchor 15 is pierced in the floor base B,
By inserting the lower portion of the anchor 15 into the hole and hitting the head of the anchor 15 with a hammer, the lower end of the anchor is opened and the anchor 15 is hooked and fixed to the floor B.

More specifically, the rod-shaped connecting bracket 18 has a metal hook portion 18a having a male screw portion and a hook 17a disposed at an end.
A metal hook portion 18b having a male screw portion and having a hook 17b provided at an end thereof; and a metal thin tube portion having a female screw hole for inserting the male screw portion so that the male screw portion can be inserted at an appropriate depth. (Also called turnbuckle) 18c.
The length of the rod-shaped connection fitting 18 is, for example, 150 to 300 mm, and the length can be adjusted by adjusting the screw insertion depth.

The procedure for constructing a double floor includes, for example, the following steps, but is not limited thereto. The cylindrical metal fitting 7 is previously inserted into the receiving plate piece 4 having a hole for inserting the cylindrical metal fitting 7 in the support legs A and A '.
The cylindrical metal fitting 7 penetrates the hole of the receiving plate piece 4, and the upper end of the cylindrical metal fitting 7 further has holes 2 a formed at a plurality of locations including the vicinity of the four corners of the floor plate base material 2 to be stacked on the receiving plate piece 4. The length (height) of the cylindrical metal fitting 7 is designed in advance so that at least a part of the cylindrical metal fitting comes into contact with the cylindrical fitting 7.

Next, the hook hooking plate 14 and the hex nut 14 are placed at appropriate heights of the support legs 9 on the support legs A.
a and 14b are screwed in, and a hexagonal nut 12a and a hexagonal nut 12b with a washer are screwed into the lower end of the support leg.
The lower end of the support leg is screwed into the elastic support board 12, and the upper end of the support leg is screwed into the cylindrical metal fitting 7 attached to the above-mentioned receiving plate piece 4. Also in the support leg A ′, a hexagonal nut 12a is provided at the lower end of the support leg,
After screwing the hexagon nut 12b with a washer, the lower end of the support leg is screwed into the elastic support plate 12, and the upper end of the support leg is screwed into the cylindrical metal fitting 7 attached to the above-mentioned receiving plate piece 4. At this time, the connecting rod 18 and the hook anchor 15 are not connected to the support leg A.

Further, holes 2a are drilled in the floor board base material 2 at a plurality of positions including the four corners of the board as described above, and the supporting legs A and A 'are formed in the holes 2a. Each of the cylindrical fittings 7, 7 is inserted.

According to the above assembling process, under the floor plate base material 2,
Thus, an intermediate assembly (hereinafter, referred to as an intermediate assembly C) in which the support leg A and the support leg A ′ stand and the floorboard substrate 2 is supported is manufactured. It should be noted that the floor board base 2 is in a substantially horizontal state, and the hook hooking plate 14 is positioned at about 1/2 to 4/5 of the length (height) of the support leg 9 from the floor base. Adjust as described in. It is convenient to set the position range to fix the support leg and to suppress the bending of the support leg. More preferably, the position range is set to 2/3 to 3/4.
It is desirable to be before and after.

Next, when placing the intermediate assembly C on the floor base B, an anchor 15 for hooking with a hook or the like is drilled at an appropriate position on the floor base B in consideration of the position of the support leg A.
Drill holes for placing. The number of the holes is one or more, preferably two or more, more preferably three per one support leg A. Further, after hooking anchors (hole-in anchors) 15 are placed in the holes, the intermediate assembly C is placed and placed on the floor base B, and the hooks of the anchors 15 and the support legs A are hooked. The support leg A is fixed by connecting the stop board 14 with a rod-shaped connection fitting 18 and adjusting the length.

Next, after finely adjusting each floor board base material 2 so as to be flush with each other, the floor finishing material 3 is laid without gaps to complete the floor support structure in the double floor.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments. Fig. 3 shows one room of a building (about 4000mm x 4000m)
m) is a plan view showing an example of an arrangement relationship between the support legs A and the support legs A ′ erected on the floor base B in FIG. It is shown. In the drawing, of the support legs A and A ', the support legs A are arranged in every other row and column and at positions where the support legs A are not adjacent to each other.

On the support leg A and the support leg A ', although not shown, as a floor finishing material 3, a veneer bonded plywood (thickness 12 mm) / floor heating hot water mat (thickness 12 mm) /
A floorboard 1 was formed by adopting a laminated structure of discarded plywood (5.5 mm in thickness) and arranging a particle board (20 mm in thickness) as a floorboard base 2 under the floor finishing material 3. In addition, the veneer bonded plywood is separated by about 3 to 5 mm from the door and partition walls in the room section, so that the impact vibration to the floor is prevented from spreading to various places along the walls. did.

The length of the supporting leg 9 in the supporting leg A and the supporting leg A 'is 450 mm (the floor finishing height is 500 m).
m), of which, on the supporting leg 9 of the supporting leg A, a hook hooking plate 14 was disposed at a height of 350 mm from the floor base B, and the upper and lower portions were fixed with hexagon nuts 14a and 14b. Floor base B separated by 250 mm from the position of the support leg 9
Then, a hook anchor 15 was placed at the vertex position of a substantially equilateral triangle on a plane centered on the support leg 9.

The hook locking hole of the hook locking board 14 and the hook locking hole of the anchor 15 were connected and fixed by a rod-shaped connecting metal fitting 18 having hooks at both ends.

In the floor support structure thus formed, a method of stipulating in accordance with JIS A1414 is applied to the floor support structure.
The sand bag (mass 10 kg) was dropped freely 22,000 times repeatedly from above and the amount of static deflection after completion was measured. It was 0.24 mm at the center of the floor, and no abnormalities in appearance were observed. It was confirmed that the support structure was solid. In addition, when a lightweight floor impact sound insulation performance test specified in JIS A 1418 (1) was performed, the sound insulation grade was Li, r, L-45, which was good.

As described above, in this embodiment, there is an effect that the floor board can be firmly supported against a large vibration of the floor plate and can be easily constructed.

[0030]

According to the supporting structure of the present invention, there is an effect that the floor plate can be firmly supported against a large vibration of the floor plate and can be easily constructed.

[Brief description of the drawings]

FIG. 1 is an overall schematic side view of a support structure in a double floor according to the present invention.

FIG. 2 is an enlarged sectional view (partial side view) of a support leg A of the present invention.

FIG. 3 is a plan view showing an arrangement of a supporting leg A and a supporting leg A ′ in one room section.

[Brief explanation of sign]

 A, A 'Support legs B Floor base 1 Floor plate 2 Floor plate base material 3 Floor finishing material 4 Receiving plate piece 7 Cylindrical metal fitting 9 Support leg 12 Elastic support plate 14 Hook retaining plate 15 Hook retaining anchor 18 Rod shape Connection bracket

Claims (1)

[Claims] 1. A double floor in which a floorboard made by laminating a floorboard base material and a floor finishing material is placed on a floor base of a building via a plurality of support legs, wherein the plurality of support legs are used. A portion of the support legs has a through hole, and a receiving plate piece that is fixedly provided in contact with the floor plate base material, is inscribed in the through hole of the receiving plate piece,
A cylindrical metal fitting formed of a cylindrical body having a female screw hole, a support leg formed with a male screw to fit into the female screw hole of the cylindrical metal fitting over the entire length, an upper insertion portion for inserting a lower portion of the support leg, and a lower end having a floor base. And an elastic support board having a board-shaped support portion expanded toward the lower end, and has a female screw hole that fits into a male screw of the support leg, and the height of the support leg can be adjusted from the floor base to the support leg. A hook hooking board that can be screwed in and fixed, one or more hook hooking anchors cast on the floor board at a position appropriately separated from the support legs, and hooks of the hook hooking board and hook hooking anchors at both ends A floor support structure, comprising: a hook connected to a hook hole;