JPH11247420A - Unit supporting part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To omit the process for fixing a unit supporting leg to a support plate and a level regulating nut and facilitate the assembling by mounting the support plate to a support bolt by a synthetic resin-made receiving tool including a metallic nut to be screwed to the support bolt which is integrally buried therein. SOLUTION: A synthetic resin-made bracket 3 has a major diameter supporting part 13 for supporting a support plate 2 and a reinforcing rib 14, and the supporting part 13 has a cylindrical part 12 in the upper and a metallic nut in the lower part. The cylindrical part 12 of the bracket 3 is pressed into a through-hole 11 provided in the center of the support plate 2 consisting of a wood material, and the upper screw part 16 of different directional screw parts 16, 17 provided on the upper and lower parts of a support bolt 5 consisting of a metallic material is screwed to the metallic nut. By using the synthetic resin-made bracket 3 having the metallic nut to be screwed to the support bolt 5, which is integrally buried therein, in the press-fit to the support plate 2, the support plate 2 can be extremely easily mounted on the support bolt 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit supporting leg used for forming a double floor by forming a space between an existing foundation floor and various buildings such as an apartment house.

[0002]

2. Description of the Related Art In a double floor, a plurality of floor panels (floor boards) formed of wood, metal, concrete, calcium silicate or the like are fixed by supporting legs arranged on a foundation floor. It is built to support the height,
The space between the existing floor and the double floor is a space for passing various pipes such as water supply and drain pipes, gas pipes, a space for passing electric and communication wiring, a space for cooling and heating, and air conditioning under the floor. It is used as a space for installing a duct for use, a space for laying a heat insulating material and a soundproofing material under the floor, and as an air conditioning duct for enhancing a soundproofing effect or a heat insulating effect.

Conventionally, as a unit supporting leg for supporting such a double floor, as shown in FIG. 7, a rubber base 108, a support bolt 105 rotatably erected on the base 108, A metal level adjustment nut 104 having an annular support portion 113 protruding from an outer peripheral lower end, and a wooden support plate 10 supported by the level adjustment nut 104.
2 is known. In the conventional unit supporting leg, an insertion hole 1 in which a metal level adjusting nut 104 is formed in a wooden supporting plate 102 is formed.
11. After the nut 104 is fitted, the upper end of the nut 104 is expanded by press working, or the outer periphery of the nut 104 is rough-knurled to fix the nut 104 and the support plate 102 by press-fitting into the support plate 102. It is.

[0004]

In a conventional unit supporting leg, a pressing step for fixing a wooden supporting plate and a metal level adjusting nut after fitting them together or a knurling process for the outer peripheral portion of the nut in advance are performed. And other special steps. In addition, since the support plate that supports the floor panel is supported by metal level adjustment nuts and support bolts, the impact applied to the floor panel is transmitted to the rubber base with little absorption and buffering However, the rubber base is absorbed and buffered for the first time, and the absorption and cushioning of impact energy is not always sufficient.

Therefore, the present invention can be easily assembled without requiring a process for fixing the support plate and the level adjusting nut, and can sufficiently absorb and cushion the impact applied to the floor panel to provide excellent soundproofing. It is another object of the present invention to provide a unit supporting leg for a double floor which exhibits a vibration damping effect.

[0006]

Means for Solving the Problems The present invention has the following structure in order to solve such problems. 1. In a unit support leg including a base made of an elastic material, a bar-shaped support bolt erected on the base, and a support plate mounted on the support bolt so as to be adjustable in height, a metal in which the support plate is screwed with the support bolt inside. A unit support leg characterized in that the unit support leg is attached to a support bolt by a synthetic resin receiver in which a nut made of resin is integrally embedded. 2. A support plate made of a wood material is provided with a through-hole having an engagement recess on the inner peripheral surface, and a cylindrical portion having an engagement protrusion provided on an upper portion of a synthetic resin receiver is pressed into the through-hole of the support plate. 2. The unit supporting leg according to 1, wherein the engaging concave portion and the engaging convex portion are engaged. 3. 3. The unit support leg according to 1 or 2, wherein the support bolt is provided with two types of screw portions having different directions. 4. Any one of claims 1 to 3, wherein a thick portion is provided at an upper end portion of a leg made of a metal pipe rotatably provided on a base, and a lower end portion of a support bolt is screwed to the thick portion. 2. The unit supporting leg according to claim 1. 5. The unit supporting leg according to any one of claims 1 to 4, wherein the synthetic resin receiving member is made of a polyamide resin.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION In the unit support leg of the present invention, there is no particular limitation on the material constituting the floor panel support plate.
Usually, wood materials such as wood, plywood, fiberboard, and particle boat are used. A through hole is provided in the center of the support plate,
Press-fit a synthetic resin receiver.

The present invention is characterized in that the support plate is mounted on the support bolt by a synthetic resin receiving member in which a metal nut screwed with the support bolt is integrally embedded. There is no particular limitation on the synthetic resin constituting the receiving member, and any synthetic resin used as a so-called engineering plastic such as polyamide, polycarbonate, polyacetal, modified polyphenylene oxide, polybutylene terephthalate, and reinforced polyethylene terephthalate can be used. Of these, polyamide resins such as nylon 6, nylon 66, etc. are preferred because the moldability of the receiving device is good and the impact and shock absorbing effect applied to the floor panel are excellent.

Although it has been proposed that the bolts and nuts constituting the unit supporting legs for the double floor are made of synthetic resin, the strength of bolts and nuts made of synthetic resin is inferior to those of metal. In addition, it is difficult to provide fine screws, and it is difficult to produce a durable unit support leg that can be finely adjusted in height. In the present invention, by integrally embedding the metal nut inside the synthetic resin receiver, the height can be finely adjusted, the durability is excellent, and the impact energy can be sufficiently absorbed and buffered. It is a support leg. In order to embed the metal nut inside the synthetic resin receiving member, for example, by arranging the metal nut inside the mold and injecting the synthetic resin into the mold by a normal injection molding method, It can be carried out.

A support made of a synthetic resin is provided with a support for supporting the support plate, a cylindrical portion press-fit into the through hole of the support plate above the support, and a metal nut below the support. Is provided. There is no particular limitation on the shape of the cylindrical portion and the holding portion of the nut, and the shape may be an arbitrary shape such as a columnar shape or a polygonal column shape such as a hexagonal column. The cylindrical portion is provided with, for example, a claw-shaped engaging convex portion, and is configured to engage with an engaging concave portion provided on the inner peripheral surface of the support plate. It may be prevented. Further, it is preferable to provide a reinforcing rib below the support portion of the receiving member. According to the present invention, by using a synthetic resin receiving member integrally embedded with a metal nut screwed into a supporting bolt, which can be deformed at the time of press-fitting to the support plate, the support can be performed by a very simple press-fitting operation. The plate can be mounted on a support bolt.

In the unit supporting leg of the present invention, the supporting bolt is made of a metal material. When the distance between the upper and lower floors constituting the double floor is small, the support bolts are made of rubber,
It is possible to adopt a configuration in which it is directly erected on a base made of an elastic material such as an elastic resin. When the distance between the upper and lower floors constituting the double floor is large, a leg made of a metal pipe is erected on a base made of an elastic material so as to be rotatable, and the upper end of the leg is formed. And a support bolt can be screwed into the support. As a metal pipe constituting the legs, for example, when a thick pipe is squeezed to provide a thick part at the upper end, and a support bolt is screwed into this thick part, the strength is excellent. This is preferable because a unit support leg can be obtained.

The base of the unit supporting leg of the present invention is made of an elastic material such as natural rubber, various synthetic rubbers, and polyurethane resin. By using such an elastic material, the impact energy transmitted from the floor panel at the upper part of the double floor via the support plate of the unit support legs, the synthetic resin receiver, the support bolt, and the like is further absorbed and buffered. Things.
A hole is provided in the upper part of the base, and the lower end of the support bolt or the leg is rotatably inserted. A flange is usually provided in the lower part of the support bolt or the leg. When a leg made of a metal pipe is erected on the base, a protrusion having a diameter slightly smaller than the inner diameter of the metal pipe may be provided at the top of the base and attached to the inside of the leg. .

[0013]

Next, the present invention will be described in more detail with reference to the drawings, but these specific examples do not limit the present invention. (Embodiment 1) FIGS. 1 and 2 are views showing an example of a unit supporting leg of the present invention. FIG. 1 is an exploded perspective view of the unit supporting leg, and FIG. 2 is a state in which a floor panel is supported by the unit supporting leg. FIG. In these figures, reference numeral 1 denotes a unit supporting leg, reference numeral 2 denotes a floor panel support plate, reference numeral 3 denotes a synthetic resin receiver, reference numeral 4 denotes a metal nut, reference numeral 5 denotes a support bolt, and reference numeral 6 denotes a metal. Legs consisting of pipes,
Reference numeral 8 denotes a base made of an elastic material, reference numeral 21 denotes an upper floor panel of a double floor, and reference numeral 22 denotes a lower base floor.

A through hole 11 is provided in the center of the support plate 2 made of a wooden material, and a cylindrical portion 12 provided on the upper part of the receiving member 3 is press-fitted into the through hole 11. The support 3 is provided with a large-diameter support portion 13 for supporting the support plate 2.
A reinforcing rib 14 is formed at the lower part of the rim. Holder 3
A metal nut 4 is integrally embedded in the receiving member 3 in the lower part of the inside. In this example, the receiving member 3 is made of nylon 6, but the receiving member 3 may be made of another synthetic resin. Further, in this example, the cylindrical tubular portion 12 is provided on the upper portion of the receiving member 3, but the outer shapes of the tubular portion 12 and the nut 4 are not particularly limited, and may be arbitrary such as a polygonal pillar such as a hexagonal pillar. Shape.

The support bolt 5 is made of a metal material.
Screw portions 16 and 17 having different directions are provided on the upper and lower portions of the support bolt, and the upper screw portion 16 includes a metal nut 4 cast into a synthetic resin receiver 3 and a lower screw portion. Reference numeral 17 is configured to be screwed with the thick portion 7 provided at the upper end of the leg portion 6 formed of a large-diameter metal pipe. At the upper end of the support bolt 5, a groove 18 for level adjustment is provided. In this example, by providing two types of screw portions 16 and 17 having different directions from each other on the support bolt 5, the floor panels 21 and 21 are assembled after the double floor is assembled.
When the level of the double floor is adjusted by a driver or the like (not shown) through the through hole 11 of the support plate 2 from the gap of
Level adjustment can be performed at twice the speed of a support leg having a support bolt having a screw portion formed in one direction. After adjusting the level of the double floor, an adhesive is injected from the through hole 11 into the gap 23 between the support bolt 5 and the receiving member 3 made of synthetic resin, so that the supporting bolt 5 and the metal nut 4 and the receiving member 3 Can be bonded and fixed to prevent loosening of the threaded portion. As the support bolt 5,
It goes without saying that a member having a screw portion in one direction may be used. The level adjusting groove 18 provided at the upper end of the support bolt 5 may have any shape.

The support bolt 5 is screwed to a thick portion 7 formed by narrowing the upper end of a leg portion 6 made of a large-diameter metal pipe erected on a base 8 made of an elastic material. . The lower end of the leg 6 is rotatably mounted on the base 8 by a protrusion 9 provided on the upper part of the base 8 via a washer 10. In this example, a cylindrical portion 12 provided on an upper portion of a synthetic resin receiving member 3 in which a metal nut 4 screwed with a supporting bolt 5 is integrally embedded therein is pressed into a through hole 11 of the supporting plate 2. By doing so, the unit support leg 1 can be easily assembled. In addition, since the receiving member 3 is made of nylon 6, the impact energy applied to the upper floor panel 21 can be transferred not only to the base 8 made of an elastic material but also to the receiving member 3.
Can be effectively absorbed and buffered.

FIGS. 3 to 5 are views showing another example of the synthetic resin receiver 3 used for the unit support leg 1 of the present invention.
3 is a plan view of the receiver 3, FIG. 4 is a front view of the receiver 3, and FIG. 5 is a sectional view of FIG. In these figures, the reference numerals indicate the same members as those in FIGS. 1 and 2. In this example,
The receiving member 3 is made of nylon 66, claw-shaped engaging projections 15 are provided at four locations on the outer periphery of the cylindrical portion 12, and engagement recesses (shown in the drawing) provided on the inner peripheral surface of the through hole 11 of the support plate 1. 1) and 2), except that they are fitted and held. The shapes and numbers of the engaging projections 15 and the engaging recesses can be changed as appropriate.

FIG. 6 is a schematic cross-sectional view showing another example of the unit supporting leg of the present invention in use. In this example,
A flange portion 19 is integrally formed at a lower end portion of the support bolt 5 having two types of screw portions 16 and 17 having different directions from each other,
1 and 2 except that it is rotatably mounted in a support hole 20 provided in a base 8 made of an elastic material. In this example, the supporting legs are a double floor upper floor panel 21.
It is preferably used when the distance between the lower base floor 22 and the lower base floor 22 is small.

[0019]

The unit supporting leg of the present invention has the following remarkable effects by adopting the above-mentioned structure. (1) By using a synthetic resin receiver in which a metal nut which is screwed with a support bolt and which is deformable at the time of press-fitting into the support plate is integrally embedded, the support plate can be press-fitted with a very simple press-fitting operation. Can be attached to the support bolt. (2) The height of the double floor is adjusted using metal support bolts and metal nuts embedded in a synthetic resin holder, so the screw pitch can be made finer and fine adjustment is possible. In addition, it is possible to provide a durable support leg. (3) By providing two types of screw portions having different directions on the support bolt, it is possible to adjust the height of the double floor at twice the speed as compared to a support bolt having a screw portion having one direction. Becomes (4) After adjusting the level of the double floor, adhesive is injected into the gap between the support bolt and the synthetic resin receiver through the through hole of the support plate to bond the support bolt to the metal nut and the receiver. It can be fixed to prevent loosening of the threaded portion. (5) By attaching the lower end of the support bolt to the base via a leg made of a metal pipe having a thicker portion at the upper end, the distance between the upper floor panel and the lower foundation floor of the double floor is provided. Is large, it can be applied with good durability.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an example of a unit support leg of the present invention.

FIG. 2 is a schematic cross-sectional view showing a state in which a floor panel is supported by a unit support leg of FIG. 1;

FIG. 3 is a plan view showing an example of a synthetic resin receiver used for the unit support leg of the present invention.

FIG. 4 is a front view of the receiving device of FIG. 3;

FIG. 5 is a sectional view of FIG. 4;

FIG. 6 is a schematic cross-sectional view showing another example of the unit support leg of the present invention and showing a state where a floor panel is supported.

FIG. 7 is an exploded perspective view showing a conventional unit supporting leg.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 101 Unit support leg 2, 102 Support plate 3 Synthetic resin receiver 4, 104 Nut 5, 105 Support bolt 6 Leg 7 Thick part 8, 108 Base 9 Convex part 10 Washer 11, 111 Through hole 12 Cylindrical part 13 Support part 14 Reinforcement rib 15 Engagement convex part 16, 17 Screw part 18 Groove 19 Flange 20 Support hole 21 Upper floor panel 22 Lower foundation floor 23 Gap

Claims (5)

[Claims] 1. A unit support leg comprising a base made of an elastic material, a rod-shaped support bolt erected on the base, and a support plate mounted on the support bolt so as to be adjustable in height. A unit support leg which is attached to a support bolt by a synthetic resin receiver in which a metal nut screwed into the unit is integrally embedded. 2. A support plate made of a wood material is provided with a through hole having an engagement concave portion on an inner peripheral surface, and a cylindrical portion having an engagement convex portion provided on an upper portion of a synthetic resin receiver is inserted through the support plate. The unit supporting leg according to claim 1, wherein the engaging concave portion and the engaging convex portion are engaged by press-fitting into the holes. 3. The unit support leg according to claim 1, wherein the support bolt is provided with two types of screw portions having different directions. 4. A thick portion is provided at an upper end portion of a leg made of a metal pipe rotatably erected on a base, and a lower end portion of a support bolt is screwed to the thick portion. Claims 1-3
The unit supporting leg according to any one of the above. 5. The receiving device according to claim 1, wherein the receiving member made of a synthetic resin is made of a polyamide resin.
The unit support leg according to the item.