JP3789616B2 - Unit support leg and double floor construction method using the same - Google Patents

Description

【００５７】
（イ）は（ア）と比較すると、剥離強度は約１．８倍に向上している。この場合、接床基台とコンクリートブロック（床面）との接着強度は裏面の接着溝やアンカー孔によって向上しているが、最終的には接床基台がコンクリートブロックから剥離する前に支持支柱が接床基台の押さえ部から離れたため、この部分の抜け止めを更に強化する必要がある。
【００５８】
（ウ）は（ア）と比較すると、剥離強度は約２．５倍に向上している。この場合支持支柱は接床基台に強固に接着されており、最終的にはコンクリートブロック表面の剥離強度を示しており、大幅な剥離強度の向上が実現できた。
【００５９】
【発明の効果】
以上述べたように本発明により、基礎床への取付位置の調整が容易で、しかも基礎床に強固に固定できるユニット支持脚と、それを用いた二重床の施工方法を提供することができた。
【図面の簡単な説明】
【図１】実施例１に用いる接床基台の平面図。
【図２】実施例１に用いる接床基台の底面図。
【図３】実施例１に用いる接床基台のａ−ａ断面図。
【図４】実施例１に用いる接床基台のｂ−ｂ断面図。
【図５】実施例１に用いる接床基台の斜視図。
【図６】接床基台を床基礎に接着した状態を示した一部断面図。
【図７】接床基台を床基礎に接着した状態を示した一部断面図。
【図８】実施例２に用いる接床基台の底面図。
【図９】実施例２に用いる接床基台のａ−ａ断面図。
【図１０】実施例３に用いる接床基台の断面図。
【図１１】ユニット支持脚の正面図。
【図１２】他の支持支柱を備えたユニット支持脚の正面図。
【図１３】従来のユニット支持脚の部分断面図。
【図１４】従来のユニット支持脚を用いて二重床の床パネルを施工した状態を示す破断斜視図。
【符号の説明】
(1) 接床基台
(2) 押さえ部
(3) 突起部
(4) 中央貫通孔
(5) 凹部
(6) 主接着溝
(7) 主アンカー孔
(8) 副接着溝
(9) 流入用貫通孔
(10) 副アンカー孔
(20) 支持支柱
(21) 支持支柱の鍔部
(22) 支持支柱の中空部
(23) 支持支柱のネジ部
(24) 支持支柱のドライバー溝
(A) 接着剤[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a unit support leg used when constructing a double floor of a building, and a method of constructing a double floor using the same, and particularly relates to a firm fixation of the unit support leg to a foundation floor. Is.
[0002]
[Prior art]
Conventionally, as a device for supporting such a double floor, for example, in Japanese Patent Laid-Open No. 3-17348 and Japanese Utility Model Laid-Open No. 4-116537, a bar-like leg portion and an upper end portion of the bar-like leg portion are mounted so as to be vertically adjustable. An apparatus for supporting a fixed rectangular and / or square floor panel by a unit support leg comprising a backing plate is disclosed.
[0003]
An example of a conventionally known unit support leg is as shown in FIG. 13, and includes a floor contact base (102) made of a relatively hard elastic material such as rubber and synthetic resin, and the floor contact base (102). A leveling nut (108) having a support bolt (104) erected in a freely rotatable manner, an annular support portion (109) projecting laterally at a substantially central portion of the outer periphery, and the above-mentioned at the central portion. A square or rectangular support plate (110) having an insertion hole (111) into which an upper portion of the level adjusting nut (108) is fitted is configured.
[0004]
The support bolt (104) is integrally provided with an annular flange (105) protruding laterally on the outer peripheral surface at a position spaced apart from the lower end by a predetermined distance, and a screw portion is provided above the flange (105). The base end portion (106) below the flange portion (105) is formed as a round bar portion having a circular cross section. Further, a groove portion (107) for fitting the tip of the rotary tool is formed on the top end surface of the support bolt (104). Then, by inserting the base end round bar portion (106) of the support bolt (104) into the center hole (103) of the floor-contact base (102), the support bolt (104) has the flange portion (105). As a support portion, it is in a state of being erected on the floor-contact base (102) so as to be rotatable.
[0005]
On the other hand, the upper portion of the insertion hole (111) of the support plate (110) is chamfered and expanded. The level adjusting nut (108) is fitted into the insertion hole (111) of the support plate (110), and then the upper part thereof is expanded, and the chamfered portion (112) of the support plate insertion hole (111) is partially expanded. It is firmly attached to the support plate (110) by being buried in. At the same time, an adhesive reservoir (113) is formed on the upper part of the level adjusting nut (108). Note that one or several grooves are formed in the longitudinal direction on the inner peripheral thread portion of the level adjusting nut (108) or the outer peripheral thread portion of the support bolt (104) so that the adhesive can easily flow.
[0006]
By screwing the upper end of the threaded portion of the support bolt (104) into the level adjustment nut (108) fitted in the insertion hole (111) of the support plate (110) in this way, the unit as shown in FIG. Support legs (101) are assembled. In addition, a double-sided pressure-sensitive adhesive sheet (114) is stuck on the upper surface of the support plate (110), or an adhesive layer is formed.
[0007]
The unit support leg (101) having such a structure rotates the support bolt (104) by fitting the tip of a rotating tool such as a screwdriver into the groove (107) provided on the top end surface of the support bolt (104). Then, the level adjusting nut (108) moves up and down with respect to the support bolt (104), and the floor level of the floor plate supported by the support plate (110) and the support plate (110) can be adjusted. .
[0008]
As shown in FIG. 14, for example, the construction example in the case of constructing a double floor using the unit support legs (101) assembled as described above, first, at a predetermined height of the room wall or the partition (121). A joist (or joist unit) (112) is provided along the side, and one side of the floor panel (123) is supported thereon. The other edge of the floor panel (123) that does not contact the joist (112) is placed in a cantilevered state on the unit support legs (101) placed on the foundation floor (concrete slab) (120) at a predetermined pitch. And attach. The unit support legs (101) and floor panel (123) are attached via a double-sided adhesive sheet (114) attached to the upper surface of the support plate (110), and the floor panel (123) is double-sided when the floor panel is laid. It is crimped to the sheet (114) and temporarily fixed. The insertion hole (111) of the support plate (110) is exposed from the edge of the floor panel (123), and the support bolt (104) is turned by a screwdriver or the like through the insertion hole (111), so that the floor panel (123) Adjust the floor level.
[0009]
Adjacent floor panels (123) are similarly constructed on a predetermined area by being mounted on the unit support legs (101). After adjusting the floor level, nailing is performed from the floor panel (123) to the support plate (110), and the floor panel (123) is fixed to the unit support leg (101). Further, an adhesive is injected from the adhesive reservoir (113), and the level adjusting nut (108) and the support bolt (104) are bonded and fixed. Then, if necessary, lay a plywood (124) on the floor panel (123), or apply a relatively rigid adhesive tape to cover the gap between adjacent floor panels (123). After that, finish materials such as cushion floors, CF sheets, carpets, tatami mats, and wooden floor materials are laid to complete the work.
[0010]
[Problems to be solved by the invention]
The unit support legs (101) are fixed to the foundation floor (120) by applying an adhesive to the bottom surface of the floor support base (102) of the unit support legs (101) at a predetermined location on the foundation floor (120). It was stuck. Therefore, the workability of the double floor is poor, the construction time becomes longer, and the construction cost increases.
[0011]
Also, once bonded to the foundation floor, the unit support leg cannot be moved even if the position of the unit support leg is finely adjusted when the floor panel is laid. Furthermore, there is a problem that the floor contact base (102) is high and unstable and the adhesive area is small, so that the adhesive strength with the base floor is weak.
[0012]
Therefore, there is a need for a unit support leg that can be easily adjusted to the mounting position on the foundation floor and that can be firmly fixed to the foundation floor, and a method for constructing a double floor using the same.
[0013]
[Means for Solving the Problems]
The unit support leg according to claim 1 of the present invention includes a floor contact base (1), and a support strut (20) which has a screw portion at an upper portion and is erected on the floor contact base (1) so as to be rotatable. In the unit support leg having a support plate (42) mounted so as to be adjustable in height via a level adjustment nut (41) screwed onto the upper portion of the support column (20), the support column (20) is a shaft. The support strut (20) has a hollow portion (22) in the direction, and a flange portion (21) extended laterally is formed at the lower end portion of the support column (20). ) And a protrusion (3) inserted into the hollow portion (22) of the support column (20) at the center of the floor-contact base (1). The floor contact base (1) is provided with a central through hole (4) penetrating vertically inside the protrusion (3), and a main adhesive that is provided on the lower surface and communicates with the central through hole (4). It has a groove (6) and a main anchor hole (7) penetrating vertically and communicating with the main adhesive groove (6).
[0014]
When the adhesive (A) is poured into the hollow part (22) of the support column (20), the adhesive (A) moved downward through the hollow part (22) and the bottom end of the support column (20) and the floor contact The base (1) is bonded. The adhesive (A) passes through the central through hole (4) and reaches the main adhesive groove (6), and bonds the floor contact base (1) and the foundation floor. Further, the adhesive (A) that has entered the main anchor hole (7) exhibits an anchoring effect that prevents the floor contact base (1) from being lifted away from the foundation floor.
[0015]
The unit support leg according to claim 2 is the unit support leg according to claim 1, wherein the floor contact base (1) flows vertically into the gap between the pressing parts (2) or inside the pressing part (2). Through-hole (9), a sub-adhesion groove (8) provided on the lower surface and communicating with the inflow-through through-hole (9), and a sub-anchor hole (10) penetrating vertically and communicating with the sub-adhesion groove (8) It is characterized by having.
[0016]
According to this, in addition to the case of claim 1, the bonding area between the floor contact base (1) and the foundation floor can be increased by the amount of the sub-adhesion groove (8), and the sub-anchor hole (10) Since the anchor effect is also obtained, the adhesion between the floor contact base (1) and the foundation floor becomes stronger and more reliable.
[0017]
The unit support leg according to claim 3 is characterized in that in the unit support leg according to claim 1 or 2, the outer peripheral side has an adhesive groove (56) that is wider and shallower.
[0018]
According to this, the total adhesion area between the floor contact base (1) and the foundation floor is increased, and in particular, the adhesion area is increased toward the outer peripheral side that contributes to the adhesive strength, so that stronger adhesion can be performed. Since the depth of the adhesive groove (56) becomes shallower toward the outer peripheral side of the floor-contact base, the strength of the outer peripheral portion is not greatly reduced, and sufficient strength can be maintained.
[0019]
According to a fourth aspect of the present invention, there is provided a method for constructing a double floor, wherein the unit support legs of claim 1, claim 2, or claim 3 are arranged on a foundation floor, and a floor panel is attached to a support plate (42) of the unit support legs. After mounting, inject adhesive (A) from the top of the support column (20) to bond the support column (20) and the floor contact base (1), and the floor contact base (1) and the foundation floor. It is characterized by doing.
[0020]
According to this, even if the adhesive is not applied to the back surface of the floor-contact base (1) prior to the placement of the unit support legs as in the prior art, the support columns are placed after the panel is placed on the unit support legs. Simply injecting the adhesive (A) from the top of (20), the adhesive (A) that passed through the hollow part (22) of the support column (20) becomes the support column (20) and the floor contact base (1). And between the floor contact base (1) and the foundation floor, and these can be bonded together.
[0021]
The construction method of the double floor of Claim 5 arrange | positions the unit support leg of Claim 1, Claim 2, or Claim 3 on a foundation floor, and mounts a floor panel on the support plate (42) of a unit support leg. And then injecting the adhesive (A) from the upper part of the support column (20) and injecting the adhesive into the main anchor hole (7) of the floor contact base (1) to contact the support column (20). The base (1) and the floor contact base (1) are bonded to the foundation floor.
[0022]
According to this, since the adhesive is directly injected into the main anchor hole in addition to the construction method described above, the adhesive is more reliably filled, and the anchor effect by the cured adhesive is easily obtained. Therefore, the adhesion between the foundation floor and the floor contact base can be made stronger and more reliable.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described below with reference to preferred embodiments.
[Example 1]
FIG. 11 is a front view of the unit support leg of this embodiment. In the figure, (1) is a floor contact base in contact with the foundation floor, (20) is a support column, (41) is a level adjustment nut, (42) is a support plate, and (43) is a double-sided adhesive sheet. .
[0024]
As the level adjusting nut (41), the supporting plate (42), and the double-sided pressure-sensitive adhesive sheet (43) screwed into the upper part of the supporting column (20), the conventional ones described above can be used.
[0025]
The floor-contact base (1) is made of a relatively hard elastic material such as rubber or synthetic resin, and fits to the foundation floor and functions as a vibration isolator.
[0026]
The support column (20) has a hollow portion penetrating in the axial direction. The support strut (20) may be threaded above one pipe as shown in FIG. 11, but a support bolt (30) with a hollow bolt attached to a hollow support pipe as shown in FIG. May be used. The lower end portion of the support column (20) is provided with a flange portion (21) protruding in the outer peripheral direction.
[0027]
FIG. 1 is a plan view of a floor contact base used in the present embodiment, FIG. 2 is a bottom view of the same, FIG. 3 is a cross-sectional view of the floor contact base aa, and FIG. 4 is a cross section of the floor contact base bb. It is. FIG. 5 is a perspective view of the floor contact base.
[0028]
In the figure, (2) is a pressing part for holding the flange part (21) of the support column (20), and (5) is a recess formed inside the pressing part (2) to fit the flange part. It is. The pressing parts (2) are arranged at four positions on a concentric circle, and a gap is provided between adjacent pressing parts (2).
[0029]
(3) are projections provided at the approximate center of the floor-contact base (1), and are arranged on four concentric circles, with a gap formed between adjacent projections (3). Yes. Further, a central through hole (4) penetrating the floor contact base (1) in the vertical direction is provided at the center of the four projecting portions (3).
[0030]
(6) is a main adhesive groove provided on the lower surface of the floor-contact base (1), communicates with the central through hole (4), and extends radially toward the outer peripheral side. (7) is a main anchor hole that communicates with the main adhesive groove (6) and penetrates the floor contact base (1) vertically.
[0031]
(8) is a sub-adhesion groove provided on the bottom surface of the floor-contact base (1), and (9) is so as to penetrate vertically inside the pressing part (2) or between the pressing parts (2). An inflow through-hole provided and communicates with the sub-adhesion groove (8). Therefore, the adhesive overflowing in the pressing portion (2) flows into the sub-adhesion groove (8) through the inflow through hole (9). The sub-adhesion groove (8) is provided so as to extend in the outer circumferential direction from the inflow through hole (9).
[0032]
Unlike the main adhesive groove (6), the secondary adhesive groove (8) does not communicate with the central through hole (4). This is because the strength of the floor contact base (1) becomes weak if there are many grooves communicating to the center. (10) is a sub-anchor hole communicating with the sub-adhesion groove (8) and penetrating vertically.
[0033]
6 and 7 are partial sectional views showing a state in which the floor contact base (1) is bonded to the floor foundation. 6 is an aa cross section, and the cross section of FIG. 7 is a bb cross section. The support strut (20) has a driver groove (24) for engaging with the driver at the upper end. If the support column (20) can be rotated, the shape of the upper end is not limited to that shown in FIG. 6, and for example, a nut shape for engaging the upper end of the support column with a box wrench or the like. A hexagonal head may be formed.
[0034]
At the time of construction, first, the floor contact base (1) is attached to the lower end of the support column (20). The lower end portion of the support column (20) is formed with a flange portion (21) protruding to the periphery, and this flange portion (21) is formed inside the pressing portion (2) of the floor-contact base (1). Fit into the recess (5). In this state, the support column (20) is erected on the floor contact base (1), and can be rotated with respect to the floor contact base (1). In this state, the protrusion (3) of the floor-contact base (1) is located in the hollow portion (22) of the support column (20).
[0035]
A floor panel is laid on the unit support legs, but since the unit support legs are fixed to the foundation floor with an adhesive in a later step, adhesive is applied in advance to the lower surface of the floor contact base (1) when laying. There is no need to keep it.
[0036]
Next, the floor level is adjusted, but the support column (20) is erected so as to be rotatable with respect to the floor contact base (1), so the support column (20) can be rotated with a screwdriver or the like. Thus, the floor level can be adjusted as in the conventional case.
[0037]
After adjusting the floor level, the floor panel is nailed to the unit support leg, but after adjusting the floor level or after fixing the floor panel, glue (A) from the adhesive pool on the top of the level adjustment nut (41). ).
[0038]
The adhesive flowing into the periphery of the support column (20) adheres and fixes the level adjusting nut and the support column (20) as in the prior art. On the other hand, the adhesive (A) poured into the hollow part (22) of the support column (20) passes through the hollow part (22) of the support column (20) and the protrusion (3) of the floor contact base (1). To.
[0039]
Therefore, the adhesive (A) between the protrusion (3) and the inside of the support column (20) and between the periphery of the protrusion (3) on the top surface of the floor contact base (1) and the bottom surface of the support column (20). ) Flows in, and the floor contact base (1) and the support column (20) are firmly fixed.
[0040]
Further, the adhesive (A) reaches the main adhesive groove (6) on the bottom surface of the floor-contact base (1) through the central through hole (4) inside the protrusion (3). The adhesive (A) flows through the space formed between the base floor and the main adhesive groove (6) toward the outer peripheral side of the floor contact base (1).
[0041]
The main adhesive groove (6) communicates with the main anchor hole (7). When a foaming adhesive is used as the adhesive (A), the adhesive whose volume is increased by foaming is as shown in FIG. It rises and hardens so as to blow through the anchor hole (7) and onto the upper surface of the floor contact base (1). If the diameter of the adhesive (A) raised and hardened on the upper surface is larger than the diameter of the main anchor hole (7), the adhesion between the adhesive (A) and the bottom surface of the flooring base (1) is temporarily reduced. The anchor that the floor contact base (1) cannot be lifted by being caught by the hardened adhesive around the upper surface of the main anchor hole (7) even if the floor contact base (1) is lifted off the foundation floor. An effect is obtained.
[0042]
In addition, since there is a gap between the protrusions (3), the adhesive (A) that has reached the lower end of the support column (20) passes through this gap and the protrusion on the upper surface of the floor contact base (1). It overflows outside from part (3). Then, the adhesive (A) passes through the inflow through hole (9) and reaches the sub-adhesion groove (8) on the bottom surface of the floor-contact base (1), and is formed between the base floor and the sub-adhesion groove (8). It flows toward the outer peripheral side of the floor contact base (1) through the space created.
[0043]
The sub-adhesion groove (8) communicates with the sub-anchor hole (10), and the adhesive (A) passes through the sub-anchor hole (10) to the upper surface of the floor contact base (1) as shown in FIG. It gets excited. If the diameter of the adhesive (A) that is raised and hardened on the upper surface is larger than the diameter of the secondary anchor hole (10), the anchor effect of preventing the lifting can be obtained as in the case of the main anchor hole (7). .
[0044]
In the present embodiment, a taper is provided in the upper part of the main anchor hole (7) and the sub-anchor hole (10) so that the diameter on the upper surface side becomes larger. In this case, even if the adhesive does not rise on the upper surface of the floor contact base (1), the anchor effect can be obtained if the adhesive enters the tapered portions of the anchor holes (7) and (10).
[0045]
In this way, when the adhesive is poured into the hollow portion (22) from the upper end of the support column (20) and cured, the adhesive (A) flows into the main adhesive groove (6) and the sub-adhesive groove (8) on the lower surface. As a result, the floor contact base (1) and the base floor are bonded to each other over a wide area, and the floor contact base (1) is firmly fixed to the base floor by the anchor effect. In particular, it is preferable to use an adhesive that foams and cures as the adhesive (A), such as moisture-curing urethane foam, because the space between the floor contact base (1) and the base floor can be filled without any gap.
[0046]
Depending on the type of adhesive, the main adhesive groove (6), main anchor hole (7), secondary adhesive groove (8), and secondary anchor hole (10) may not be filled sufficiently. If desired, the adhesive (A) may be directly injected and filled from the main anchor hole (7) or the sub-anchor hole (10) as necessary.
[0047]
In this embodiment, the sub-adhesive groove (8) is provided in addition to the main adhesive groove (6), but sufficient mounting strength can be obtained by the main adhesive groove (6) and the main anchor hole (7). However, the sub-adhesion groove (8), the inflow through hole (9) and the sub-anchor hole (10) communicating therewith are not necessarily required.
[0048]
Even after the floor panel is attached to the unit support legs and the floor level is adjusted, the unit support legs and the foundation floor can be fixed. This eliminates the time-consuming work of measuring the mounting position of the base (1) strictly and applying an adhesive to the bottom surface of the floor-to-floor base (1) and bonding it to the foundation floor. Therefore, it is possible to construct a double floor more easily and in a shorter time than conventional. In addition, the double floor of this invention can be used irrespective of structures, such as an apartment and a wooden house.
[0049]
[Example 2]
FIG. 8 is a bottom view of the floor contact base used in this embodiment, and FIG. 9 is a cross-sectional view taken along the line aa of the floor contact base.
[0050]
Although the basic configuration is the same as that of the first embodiment, the shape of the main bonding groove (56) of the floor contact base (51) is different. That is, in this embodiment, the width of the main bonding groove (56) becomes wider and the depth becomes shallower toward the outer peripheral side of the floor contact base (51).
[0051]
Therefore, the total adhesion area is increased, and the adhesion area is particularly increased on the outer peripheral side that contributes to the adhesion strength, so that stronger adhesion can be performed. Moreover, since the depth of the main bonding groove (56) becomes shallower toward the outer peripheral side of the floor contact base (51), the strength of the outer peripheral portion is not greatly reduced, and sufficient strength can be maintained. it can.
[0052]
In this embodiment, the main adhesive groove (56) has a shape that becomes wider and shallower as it goes to the outer peripheral side, but instead of the main adhesive groove (56), the sub-adhesive groove has the same shape. It is good.
[0053]
[Example 3]
FIG. 10 is a cross-sectional view of the floor-contact base (61) used in this embodiment. The basic configuration of this embodiment is the same as that of the first embodiment, but the surface of the main adhesive groove (66) of the floor-contact base (61) is provided with irregularities (66a). As a result, the adhesion area increases and the biting of the adhesive is improved, so that stronger adhesion than in Example 1 can be performed. Other configurations are the same as those of the first embodiment.
[0054]
It should be noted that the number, size, shape, etc. of the pressing portions, protrusions, adhesive grooves, anchor holes, etc. may be appropriately changed as necessary, and are not limited to those shown in the above embodiments.
[0055]
[Peel strength test]
In order to examine the adhesive strength between the support leg and the floor surface, the following test was conducted. Three types of unit support legs with different floor contact bases are applied to concrete blocks in the same way as in actual construction by pouring moisture-curing urethane foam adhesive into the hollow part of the support struts and bonding to the plane tension test of special plywood Japanese Agricultural Standard. Tested accordingly. There are the following three types of floor support bases for the unit support legs used in the test.
(A) Floor contact base with no adhesive grooves or anchor holes on the back surface (A) Floor contact base same as Example 1 except that it does not have protrusions (c) Floor contact base of Example 1 The test results are shown in Table 1.
[0056]
[Table 1]

[0057]
Compared with (a), (a) has a peel strength improved by about 1.8 times. In this case, the adhesion strength between the floor contact base and the concrete block (floor surface) is improved by the adhesive grooves and anchor holes on the back surface, but it is finally supported before the floor contact base peels from the concrete block. Since the column is separated from the pressing portion of the floor-contact base, it is necessary to further strengthen the retaining of this part.
[0058]
In (c), the peel strength is improved by about 2.5 times compared with (a). In this case, the support strut was firmly bonded to the floor contact base, and finally showed the peel strength of the concrete block surface, and a significant improvement in peel strength could be realized.
[0059]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a unit support leg that can be easily fixed to the foundation floor and can be firmly fixed to the foundation floor, and a method for constructing a double floor using the same. It was.
[Brief description of the drawings]
FIG. 1 is a plan view of a floor contact base used in Example 1. FIG.
FIG. 2 is a bottom view of the floor contact base used in the first embodiment.
3 is a cross-sectional view taken along the line aa of the floor contact base used in Embodiment 1. FIG.
4 is a cross-sectional view taken along the line bb of the floor-contact base used in Example 1. FIG.
5 is a perspective view of a floor contact base used in Example 1. FIG.
FIG. 6 is a partial cross-sectional view showing a state where the floor contact base is bonded to the floor foundation.
FIG. 7 is a partial cross-sectional view showing a state in which the floor contact base is bonded to the floor foundation.
FIG. 8 is a bottom view of the floor contact base used in the second embodiment.
9 is a cross-sectional view taken along the line aa of the floor contact base used in Example 2. FIG.
10 is a cross-sectional view of a floor contact base used in Example 3. FIG.
FIG. 11 is a front view of a unit support leg.
FIG. 12 is a front view of a unit support leg provided with another support column.
FIG. 13 is a partial cross-sectional view of a conventional unit support leg.
FIG. 14 is a cutaway perspective view showing a state in which a double-floor floor panel is constructed using a conventional unit support leg.
[Explanation of symbols]
(1) Flooring base
(2) Holding part
(3) Projection
(4) Central through hole
(5) Concave
(6) Main adhesive groove
(7) Main anchor hole
(8) Sub-adhesion groove
(9) Inflow through hole
(10) Secondary anchor hole
(20) Support column
(21) Support strut buttocks
(22) Hollow part of support column
(23) Support strut screw
(24) Driver groove of support column
(A) Adhesive

Claims (5)

Height adjustment is possible via a floor contact base, a support strut that is formed with a thread on the top, and is pivotably mounted on the floor support base, and a level adjustment nut that is screwed onto the top of the support support. In a unit support leg having a mounted support plate,
The support column has a hollow portion in the axial direction, and a flange portion that is extended laterally is formed at the lower end of the support column.
The floor contact base has a holding part for holding the buttock, and the center part of the floor contact base is provided with a protrusion inserted into the hollow portion of the support column. Has a central through hole penetrating vertically inside the protrusion, a main adhesive groove provided on the lower surface and communicating with the central through hole, and a main anchor hole penetrating vertically and communicating with the main adhesive groove. A unit support leg. The floor contact base is a gap between the pressing parts or an inflow through hole penetrating up and down inside the pressing part, a sub-adhesion groove provided in the lower surface and communicating with the inflow through hole, and vertically penetrating and sub-adhering. 2. The unit support leg according to claim 1, further comprising a sub-anchor hole communicating with the groove. 3. The unit support leg according to claim 1, further comprising an adhesive groove having a width that is wider and shallower toward an outer peripheral side. The unit support leg according to claim 1, claim 2 or claim 3 is arranged on the base floor, and the floor panel is placed on the support plate of the unit support leg, and then the adhesive is injected from the upper part of the support column. A construction method for a double floor, characterized in that a support and a floor contact base, and a floor contact base and a foundation floor are bonded together. The unit support legs according to claim 1, 2, or 3 are arranged on the foundation floor, and the floor panel is placed on the support plate of the unit support legs, and then an adhesive is injected from the upper part of the support column and contact is made. A construction method for a double floor, characterized in that a support column and a floor contact base are bonded to each other by injecting an adhesive into a main anchor hole of the floor base, and the floor contact base and a base floor are bonded.

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