JP3532548B2 - Floor plate support legs - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention In a building such as an apartment house, a detached house and a building, the present invention forms a space between a foundation floor such as a concrete slab and a floor board in order to secure a wiring space and a piping space. When constructing a double floor, the present invention relates to a floor plate construction support leg that supports the floor plate in a height-adjustable manner.

[0002]

2. Description of the Related Art As shown in FIG. 18, such a support leg has a support plate b for supporting a floor plate a from below and a support plate b in which an upper half portion is inserted into a through hole c penetrating the center of the support plate b. The basic structure is that it is provided with a nut member d fixed to the back surface and a support bolt f having an elastic pedestal e attached to the lower end.

During floorboard construction, the position of the nut member d with respect to the support bolt f is roughly adjusted in advance according to the construction height of the floorboard a from the foundation floor g, and the support leg h thus adjusted is used. For example, the support plate b is fixed to the back surface of the floor plate a by nailing or wood screws in a state where it is arranged from the back side between two adjacent floor plates a or across the abutting portions of the four floor plates a. Is supported from below by a support plate b. After that, a rotating tool such as a screwdriver is engaged with the height adjusting groove i at the upper end of the support bolt f to rotate the support bolt f around the axis, and the support plate b is vertically moved along the axis of the support bolt f. It is moved and the height of the floor board a from the foundation floor g is finely adjusted to match the construction height. When the construction height is determined in this way, the disposing material j and the finishing material k are laid in order on the surface of the floor board a, and the construction work is completed.

However, since the support plate b is generally made of wood such as particle board, the plate thickness is as thick as about 15 mm in order to secure its strength, and the floor cannot be reduced accordingly. A support leg provided with such a thick support plate is also disclosed in, for example, Japanese Patent Application Laid-Open No. 11-62181.

On the other hand, as shown in FIGS. 16 and 17, a support leg h having a metal support plate b has also been developed. Since the metal support plate b has a higher strength than the wooden support plate b, the floor plate a can be sufficiently supported even if the plate thickness is made as thin as 2 to 3 mm as shown in the figure. Therefore, the support leg h in which the support plate b is made of metal can have a low floor because the plate thickness is thin. 16 and 17, the same parts as those in FIG. 18 are designated by the same reference numerals and the description thereof will be omitted.

[0006]

By the way, in the supporting leg h in which the supporting plate b is made of metal as in the latter conventional example, the thickness of the supporting plate b can be reduced as described above. However, since the material of the support plate b is metal, it is hard and the support plate b cannot be securely fixed to the back surface of the floor plate a by nailing or wood screws.

Therefore, in the construction example of FIG. 16, screw holes 1 are formed in the four corners of the support plate b, while bolt insertion holes m are formed in the four corners of the floor plate a, and bolts (not shown) are attached to the floor plate. The support plate b is fixed to the back surface of the floor plate a by inserting the bolt into the bolt insertion hole m of a and screwing it into the screw hole l of the support plate b.

Alternatively, a bolt insertion hole is formed in the support plate b instead of the screw hole l, and a nut (not shown) corresponding to the bolt insertion hole is welded on the back surface of the support plate b to fix the bolt. The support plate b is fixed to the back surface of the floor plate a by inserting it into the bolt insertion hole m of the floor plate a and the bolt insertion hole of the support plate b and screwing the nut into the bolt insertion hole.

However, in these fixing methods, it is necessary to form the bolt insertion hole m in the floor plate a and the screw hole 1 in the support plate b of the support leg h, and further, the bolt is formed in the support plate b. When the insertion hole is formed, the nut has to be welded to the back surface of the support plate b, which is disadvantageous in that it takes time and labor for the construction work.

In addition, it is necessary to pay attention to the alignment between the bolt insertion hole m of the floor plate a and the screw hole 1 or the bolt insertion hole of the support plate b, which also causes a decrease in workability. .

The present invention has been made in view of the above points, and an object of the present invention is to use a metal support plate to lower the floor, as in the latter conventional example, and As a means for fixing the floor plate and the support plate, instead of bolting, driving with a self-tapping screw is adopted so that the construction work can be performed easily and quickly.

[0012]

In order to achieve the above object, the present invention is characterized in that the metal supporting plate has a structure in which the self-tapping screw easily bites.

Specifically, the present invention is directed to a floor plate construction support leg which is disposed between a base floor and a floor plate and supports the floor plate in a height-adjustable manner. It was

That is, according to the first aspect of the present invention, there is provided a metal support plate which has a boss portion in which a female screw portion is formed in the center and which is fixed to the back surface of the floor plate by a self-tapping screw to support the floor plate from below. And a support bolt that is screwed into the female screw portion of the boss portion and that moves the support plate along the axis by a rotational operation about the axis to adjust the height of the floor plate from the base floor. A large number of self-tapping screw tips are hooked on the contact surface of the support plate with the floor plate.
Concave grooves are arranged to intersect in a network form, when implanting the self-tapping screw, biting stabilizing means for stabilizing the biting self-tapping screw the concave
It is characterized by being constituted by a groove .

According to a second aspect of the invention, the internal thread portion is formed.
Has a centered boss, and self-tashes on the back of the floorboard.
Fixed by a ping screw to support the floor plate from below
Screw the metal support plate to the female screw part of the boss,
The support plate is moved along the axis by the rotating motion around the center.
A support bolt that adjusts the height of the floor plate above the foundation floor.
And a self-tapping screen on the support plate.
A large number of through holes that allow the tip of the
The diameter of the through hole is the outer diameter of the thread of the self-tapping screw.
Set smaller than the above self-tapping screw
When tapping in, tap the self-tapping screw
Stabilizing means for bite stabilization is composed of the above through hole
It is characterized by being.

With the above construction, in the inventions according to the first and second aspects, since the support plate is made of metal, the strength is secured even if the plate thickness is made thin, and the floor can be reduced accordingly. .

Further, since the floor plate and the support plate of the support leg are securely fixed by driving the self-tapping screw, a bolt insertion hole is formed in the floor plate or a screw hole or a bolt insertion hole is formed in the support plate of the support leg. It is not necessary to form a nut or to weld a nut to the back surface of the support plate, which saves labor and aligns the bolt insertion hole of the floor plate with the screw hole or bolt insertion hole of the support plate. Is also unnecessary, and construction work can be performed easily and quickly.

In addition, the self-tapping screw bites into the support plate smoothly by the bite-stabilizing means, and the bite is used as a starting point for promoting the subsequent bite, and the self-tapping screw is driven quickly and surely. Does not interfere with work. Specifically, billing
Item 1, self-tapping screw tip driven
Catches in the groove and is positioned securely,
The biting of the wrapping screw starts smoothly.
In addition, the grooved groove area should be provided around the boss and around the edge of the support plate.
If not, the plate is
Since the thickness is thick, the support rigidity of the support plate is secured. Claim
In 2, the tip of the driven self-tapping screw is
It does not come out of the through hole when it enters the through hole,
Layer surely done and self-tapping screw bite
Will start even more smoothly.

The invention described in claim 3 is the invention according to claim 1 or 2.
In the invention described in (3), the bite stabilization means is provided on the entire support plate.

With the above construction, in the invention according to the third aspect , even if the driving position of the self-tapping screw is slightly displaced, the self-tapping screw is provided on the entire support plate by the biting stabilizing means. Be sure to bite the contact surface with the floorboard.

The invention according to claim 4 is the invention according to claim 1 or 2.
In the invention described in (1), the bite stabilization means is provided in a region excluding at least one of the periphery of the boss portion of the support plate and the peripheral portion of the support plate.

With the above structure, in the invention according to the fourth aspect , even if the bite-stabilizing means is not provided around the boss portion or in the peripheral portion of the support plate, the region is largely deviated from the driving region of the self-tapping screw. Therefore, the biting effect of the biting stabilizing means of the self-tapping screw is not hindered.

The invention according to claim 5 is the invention according to claim 1 or 2.
In the invention described in (3), the support plate is provided with a reinforcing rib.

With the above construction, in the invention according to the fifth aspect , the floor plate supporting strength of the supporting plate is improved.

According to a sixth aspect of the present invention, in the invention according to the fifth aspect , the reinforcing rib is provided so as to project on the back surface side of the supporting plate, and the contact surface of the supporting plate with the floor plate corresponds to the reinforcing rib. And is provided with a recess.

With the above structure, in the invention according to claim 6 , the structure of the reinforcing rib is embodied.

According to a seventh aspect of the invention, in the fifth aspect of the invention, the reinforcing rib is formed by bending the peripheral edge of the support plate to the back surface side of the support plate.

With the above structure, in the invention according to claim 7 , another structure of the reinforcing rib is embodied.

According to an eighth aspect of the invention, in the invention according to the sixth aspect , a guide groove extending toward the boss side is connected to the recessed portion, and the rotation preventing adhesive injected into the tip portion of the support bolt. Is guided to the recess by way of the guide groove.

With the above construction, in the invention according to the eighth aspect , the rotation-preventing adhesive penetrates into the threaded portion between the support bolt and the female screw portion of the boss portion to prevent the support bolt from rotating, thereby preventing the floor board from rotating. The height from the foundation floor does not change.

The invention according to claim 9 is the invention according to claim 1 or 2.
In the invention described in (1), the boss portion is provided so as to project on at least one of the front and back surfaces of the support plate.

With the above structure, in the invention according to claim 9 , when the boss portion is provided on the surface of the support plate,
The boss part serves as a guide for positioning the floor plate, and you do not need to pay much attention to the alignment, which facilitates construction work. On the other hand, when the boss portion is provided on the rear surface of the support plate, the construction height adjustment width of the floor plate increases by the amount of the downward projection.

[0033]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIGS. 1A and 2 show an application example of a floor board construction support leg 1 according to Embodiment 1 of the present invention. This support leg 1 is applied to a double floor structure of a building 2 such as an apartment house, a detached house, and a building, and a concrete slab 3 that is a foundation floor of the building 2.
And the floor board 4 made of a panel material such as particle board, plywood, wood fiber board, glass fiber reinforced cement panel or the like so as to support the floor board 4 in a height adjustable manner. The space 5 between the concrete slab 3 and the floor plate 4 is used as a wiring space, a piping space, or the like. In FIG. 2, 6 is a joist which is arranged at the edge of the concrete slab 3 and supports the floor board 4. Reference numeral 7 is a sill member made of plywood or wood fiberboard that is laid on the floor plate 4 after the floor plate 4 is constructed, and 8 is a cushion floor sheet, tatami mat, and wooden floor that are laid on the sill member 7. It is a finishing material made of materials.

The support leg 1 is provided with a support bolt 9 having an externally threaded portion 9a formed on its outer periphery. A disc-shaped engaging collar 10 is integrally formed on the lower end of the support bolt 9 so as to project therefrom. A height adjusting groove 11 is provided at the upper end. The engaging flange 10 is rotatably engaged with a circular recess 12a of an elastic pedestal 12 made of an elastic material such as rubber, and vertically holds the support bolt 9 with the elastic pedestal 12 grounded on the concrete slab 3. It is like this.

A metal support plate 13 is attached to the support bolt 9.
Is held horizontally with its height adjustable.
The support plate 13 is made of a metal plate such as a thin iron plate having a plate thickness of about 2 to 3 mm and is formed in a rectangular shape having a side length of about 88 to 100 mm. There is. A cylindrical boss portion 14 is squeezed out by a press and is provided at the center of the surface of the support plate 13 so as to project. A female screw portion 14a is formed on the inner periphery of the boss portion 14, and the female screw portion 14a is adapted to be screwed with the male screw portion 9a of the support bolt 9. Then, the supporting plate 13 is moved in the vertical direction along the axis by the rotation operation of the supporting bolt 9 about the axis to move the concrete slab 3 of the floor board 4 into
The height from is adjusted. The support plate 1
3 is for supporting the floor board 4 from below, and is fixed to the back surface of the floor board 4 by driving the self-tapping screw 15 having a sharp tip from the front side of the floor board 4 with a nailing tool such as an electric screwdriver. It

As a feature of the present invention, as shown in FIG. 1B, when the self-tapping screw 15 is driven on the contact surface (surface) of the support plate 13 with the floor plate 4,
A large number of groove grooves 16 as biting stabilizing means for stabilizing the biting of the self-tapping screw 15 are engraved in a V shape, and these groove grooves 16 diagonally intersect in a mesh shape to form a rhombic mesh. The depth D is about 0.2 to 0.5 mm, and the width W between the adjacent groove grooves 16 is
Is set to about 1 to 3 mm. This groove 16
Are formed on the entire contact surface (surface) of the support plate 13 with the floor plate 4.

An adhesive 17 is laminated on the contact surface (surface) of the support plate 13 with the floor plate 4, and a release paper 18 is further laminated on the surface of the adhesive 17 in an unused state before construction. Covers. The release paper 18 is peeled off at the time of construction, and the support plate 13 is temporarily fixed via the adhesive 17 so as not to be displaced to the back surface of the floor plate 4.

The procedure for constructing the floorboard 4 using the support leg 1 thus constructed is carried out as follows.

(1) The height of the support plate 13 of the support leg 1 is roughly adjusted in advance according to the construction height of the floor plate 4. In this height adjustment, the support plate 13 is directly manipulated by the operator. It is carried out by holding with and rotating it around the axis of the support bolt 9.

(2) The release paper 18 on the surface of the support plate 13 is peeled off to expose the adhesive 17.

(3) Two floor plates 4 with supporting legs 1 adjacent to each other
The support plate 13 is arranged from the back side so as to be located between the floors 4 and the abutting portions of the four floor plates 4, and the support plate 13 is pressed against the back surface of the floor plate 4 so that the adhesive agent 17 is pressure-bonded, and the support plate 13, that is, the support legs 1 is fixed to the floor plate. Temporarily fix to 4.

(4) The floor plate 4 to which the supporting legs 1 are temporarily fixed and another floor plate 4 adjacent to the floor plate 4 are arranged on the concrete slab 3 of the building 2, and the elastic pedestal 12 is grounded to the concrete slab 3. In this state, a gap corresponding to the outer diameter of the boss portion 14 of the support leg 1 is formed between the adjacent floor plates 4.

(5) The self-tapping screw 15 is driven into the support plate 13 from the surface side of the floor plate 4 with a nailing tool such as an electric screwdriver to fix the support plate 13 to the floor plate 4. As a result, the floor plate 4 is horizontally supported from below by the support plate 13, that is, the support legs 1.

(6) A rotary tool such as a screwdriver is inserted between the adjacent floor plates 4 or into a gap such as the abutting portion of the four floor plates 4 to engage with the height adjusting groove 11 at the upper end of the support bolt 9 for support. Rotate the bolt 9 around the axis. As a result, the support plate 13 moves vertically along the axis of the support bolt 9, and the height of the floor plate 4 from the concrete slab 3 is finely adjusted to match the construction height.

(7) An anti-rotation adhesive (not shown) is injected into the tip of the support bolt 9 protruding from the boss portion 14 of the support plate 13, and the adhesive is applied to the support bolt 9 and the boss portion 14.
To prevent the support bolt 9 from turning,
Make sure that the construction height of the floor plate 4 does not change.

(8) The waste material 7 and the finishing material 8 are laid in order on the surface of the floor board 4, and the work is completed.

As described above, in the first embodiment, since the support plate 13 of the support leg 1 is made of the thin metal product, the floor can be made lower than that of the thick wood product.

Further, in the first embodiment, since the floor plate 4 and the support plate 13 of the support leg 1 are fixed by driving the self-tapping screw 15, the bolt insertion holes are formed in the floor plate and the support plate 13 is supported. There is no need to form screw holes or bolt insertion holes in the leg support plate, or to weld a nut to the back surface of the support plate, which saves labor for that amount. It is not necessary to align with the screw holes or the bolt insertion holes of the support plate, and the construction work can be performed easily and quickly.

In addition, in the first embodiment, the support plate 1
Since the groove groove 16 is engraved on the contact surface of the No. 3 with the floor plate 4 to stabilize the biting of the self-tapping screw 15, the self-tapping screw 15 is smoothly moved to the contact surface of the support plate 13 with the floor plate 4. Can bite into
This biting can be used as a starting point to promote the subsequent biting, and the self-tapping screw 15 can be driven quickly and surely so that the construction work can be performed smoothly without any support. In particular, since the bite-stabilizing means is the groove groove 16, the tip of the driven self-tapping screw 15 can be caught by the groove groove 16 and positioned reliably, and the bite of the self-tapping screw 15 can be prevented. It can be started smoothly.

Further, in the first embodiment, the concave groove 16
Since the support plate 13 is engraved on the entire contact surface with the floor plate 4, even if the driving position of the self-tapping screw 15 deviates to some extent, the self-tapping screw 15 is supported by the support plate 1.
It is possible to reliably bite the contact surface of the floor plate 3 with the floor plate 4.

Furthermore, in the first embodiment, since the boss portion 14 is provided on the surface of the support plate 13, the support plate 1
When attaching 3 to the floor plate 4, by aligning the edge of the floor plate 4 with the boss portion 14, the support leg 1 can be used as a guide for positioning, and the construction work can be easily performed without paying too much attention to the position alignment. You can

<First Modification> FIG. 3 shows a first modification of the support plate 13. Here, the groove groove 16 as the biting stabilizing means is provided on the floor plate 4 of the support plate 13.
The contact surface (front surface) with is engraved in a region excluding both the periphery of the boss portion 14 and the peripheral portion of the support plate 13. The shape and arrangement of the groove 16 and the fact that the adhesive 17 and the release paper 18 are laminated are the same as in the first embodiment.

Therefore, in this modified example 1, the same effect as that of the groove 16 in the first embodiment can be obtained.

In addition, in the first modification, even if the groove 16 is not formed around the boss 14 or in the peripheral edge of the support plate 13, the region is largely deviated from the driving region of the self-tapping screw 15. Tapping screw 15
It is possible to surely obtain the biting effect without hindering the biting by the concave groove 16. Further, since the plate thickness around the boss portion 14 and the peripheral portion of the support plate 13 is thicker than the region of the groove groove 16 by the absence of the groove groove 16, the supporting rigidity of the support plate 13 can be secured accordingly. Has the advantage.

<Modification 2> FIG. 4 shows a modification 2 of the support plate 13. Here, the groove groove 16 as the biting stabilizing means is provided on the floor plate 4 of the support plate 13.
It is engraved on the entire contact surface (surface) with and in this respect is the same as the first embodiment. The difference from the first embodiment is that the groove grooves 16 are orthogonal to each other to form a square mesh. In addition, the shape of the concave groove 16, the adhesive 17 and the release paper 1
8 is the same as that of the first embodiment.

Therefore, in the second modification, the same working effect as that of the groove 16 in the first embodiment can be obtained.

<Modification 3> FIG. 5 shows a modification 3 of the support plate 13. Here, the groove groove 16 as the biting stabilizing means is provided on the floor plate 4 of the support plate 13.
The contact surface (front surface) with is engraved in a region excluding both the periphery of the boss portion 14 and the peripheral portion of the support plate 13. This point is the same as the first modification. The difference from the first modification is that the concave grooves 16 are orthogonal to each other to form a square mesh.
Other than that, the shape of the groove 16 and the fact that the adhesive 17 and the release paper 18 are laminated are the same as in the first modification.

Therefore, in the modified example 3, the modified example 1
Recessed groove 16 in (including the effect of the first embodiment)
The same action and effect as can be obtained.

(Second Embodiment) FIG. 6 shows a supporting leg 1 according to a second embodiment. The second embodiment is the same as the first embodiment except that the boss portion 14 of the support plate 13 is provided on both front and back surfaces of the support plate 13, and therefore the same components are designated by the same reference numerals. The detailed description will be omitted.

Therefore, in the second embodiment, the same operational effect as that of the first embodiment can be obtained.

In addition, in the second embodiment, since the boss portion 14 is also projectingly provided on the back surface of the support plate 13, as shown by the phantom line in FIG. It has the advantage that the width can be increased. Although not shown, the modified examples 1 to 3 can be adopted for the shape and arrangement of the concave groove 16.

(Third Embodiment) FIGS. 7 and 8 show a supporting leg 1 according to a third embodiment. In the third embodiment, the boss portion 14 of the support plate 13 is provided so as to project from the back surface of the support plate 13 contrary to the first embodiment, and the hole diameter is smaller than the screw thread outer diameter of the self-tapping screw 15. A large number of through holes 19 are formed through the entire support plate 13, and the through holes 19 serve as a biting and stabilizing means. Since the other points are the same as those in the first embodiment, the same components are designated by the same reference numerals, and detailed description thereof will be omitted. Although the self-tapping screw 15 has a cutting edge at its tip here, the self-tapping screw 15 having a sharp tip at the tip may be used in the first and second embodiments.

Therefore, in the third embodiment, the tip of the driven self-tapping screw 15 is inserted into the through hole 1.
9 so that the tip of the self-tapping screw 15 can be prevented from coming off the through hole 19, the self-tapping screw 15 can be positioned more reliably, and the self-tapping screw 15 bites. It can start more smoothly than. Other than that, the same effects as those of the first embodiment can be obtained.

Even if the axis of the through hole 19 is slightly deviated from the center of the through hole 19, the self tapping screw 15 is inserted along the through hole 19 even if the axis of the through hole 19 is slightly deviated from the center of the through hole 19. When the through hole 1
Since the inner peripheral edge of the plate 9 is also deviated to some extent, the self-tapping screw 15 can surely bite the support plate 13.

(Fourth Embodiment) FIGS. 9 and 10 show a supporting leg 1 according to a fourth embodiment.
In the fourth embodiment, the four reinforcing ribs 20 are attached to the support plate 1
The protrusions are formed in a cross shape on the back surface of the support plate 3, and a concave portion 21 corresponding to the reinforcing rib 20 is formed on the contact surface (front surface) of the support plate 13 with the floor plate 4. These reinforcing ribs 20 and recesses 2
1 is formed at the same time as the squeezing process by pressing the boss portion 14. Further, the through hole 19 is formed in a region excluding the reinforcing rib 20 and the concave portion 21.
Further, the adhesive 17 and the release paper 18 are provided not in the entire surface of the support plate 13 but in two regions except for the two recesses 21 arranged in series, and the two recesses 21 are covered with the adhesive 17 in the construction state. However, the other two recesses 21 are not covered with the adhesive 17 and are exposed. Since the other points are the same as those in the third embodiment, the same components are denoted by the same reference numerals and detailed description thereof will be omitted.

Therefore, in the fourth embodiment, the reinforcing ribs 20 can improve the floor plate supporting strength of the supporting plate 13. Further, in addition to the bite acceleration effect of the self-tapping screw 15 according to the third embodiment, the same effect as the first embodiment can be obtained.

(Fifth Embodiment) FIGS. 11 and 12 show a support leg 1 according to a fifth embodiment. In the fifth embodiment, as in the third embodiment, the through hole 19 is formed through the entire support plate 13, but the peripheral edge of the support plate 13 is bent toward the back surface of the support plate 13 to reinforce the rib 22.
Is formed. Since the other points are the same as those in the third embodiment, the same components are denoted by the same reference numerals and detailed description thereof will be omitted.

Therefore, in the fifth embodiment, as in the fourth embodiment, the reinforcing ribs 22 can improve the floor plate supporting strength of the support plate 13. Further, in addition to the bite acceleration effect of the self-tapping screw 15 according to the third embodiment, the same effect as the first embodiment can be obtained.

(Sixth Embodiment) FIGS. 13 and 14 show a supporting leg 1 according to a sixth embodiment. In the sixth embodiment, four reinforcing ribs 20 are projected in a cross shape on the back surface of the support plate 13, and concave portions corresponding to the reinforcing ribs 20 are formed on the contact surface (front surface) of the support plate 13 with the floor plate 4. 21 and that the adhesive 17 and the release paper 18 are provided in two regions excluding the two reinforcing ribs 20 that are arranged in series, but are the same as in the fourth embodiment. 21 are connected by a guide groove 23 extending to the boss portion 14 side so that the anti-rotation adhesive 24 (see FIG. 13) injected into the tip portion of the support bolt 9 is guided to the concave portion 21 via the guide groove 23. It has become. Since the other points are the same as those in the fourth embodiment, the same components are denoted by the same reference numerals and detailed description thereof will be omitted.

Then, as shown in FIG. 15A, when the three floor plates 4 are arranged so as to form a T-shaped gap, the three recessed portions 21 of the support plate 13 correspond to the above-mentioned gaps. However, the remaining recessed portion 21 that is not covered with the adhesive 17 corresponds to the back surface of the floor plate 4 on the upper side, so that the rotation preventing adhesive 24 is introduced into the recessed portion 21 through the guide groove 23. The adhesive effect with the floor board 4 can be secured. Further, as shown in FIG. 15 (b), when the two floor plates 4 are arranged in parallel, the two recessed portions 21 covered with the adhesive 17 of the support plate 13 are located in the gap between the floor plates 4. Corresponding, but the remaining two recessed portions 21 not covered with the adhesive 17 correspond to the back surfaces of the two upper and lower floor plates 4, respectively, so that the two recessed portions 21 are used to prevent rotation. The adhesive 24 is introduced through the guide groove 23, so that the adhesive effect with the floor plate 4 can be further secured. In the figure, the hatched area is the area of the release paper 18. Further, the through hole 19 is omitted here for the sake of easy viewing.

Therefore, in the sixth embodiment, the rotation-preventing adhesive 24 is made to penetrate into the threaded portion between the support bolt 9 and the female screw portion 14a of the boss portion 14 to prevent the rotation of the support bolt 9, and the floorboard 4 In addition to being able to fix the height of the concrete slab 3 so that it does not fluctuate,
The support plate 13 can be firmly fixed to the floor plate 4. Other than that, the floor plate supporting strength of the supporting plate 13 can be improved by the reinforcing ribs 20 as in the fourth embodiment. In addition, the self-tapping screw 15 according to the third embodiment
In addition to the bite-promoting effect, the same operational effect as that of the first embodiment can be obtained, which is the same as the above-described embodiment.

In the first and second embodiments and the first to third modifications, the groove 16 is engraved on the entire contact surface (surface) of the support plate 13 with the floor plate 4, and the boss portion 14. Although the case where it is engraved in the region excluding both the periphery and the peripheral portion of the support plate 13 is illustrated, the groove groove 16 is provided around the boss portion 14 and the support plate 13.
You may engrave in the area | region except one of the peripheral parts.

In the first and second embodiments and the first to third modifications, a mesh-like material is used as the bite-stabilizing means instead of the groove groove 16, and the mesh-like material is joined to a thin metal plate. The support plate 13 may be composed of a composite plate.

Further, as the bite-stabilizing means, a large number of concavo-convex concave portions are formed in place of the concave groove 16 to form the supporting plate 1.
3 The surface may be roughened, and the means is not limited to the groove 16 and the through hole 19, and any means may be used as long as it stabilizes the biting of the self-tapping screw 15.

Further, the boss portion 14 may be formed by welding a nut, instead of being formed by squeezing.

In addition, a through hole penetrating in the axial direction is formed in the support bolt 9, and the rotation preventing adhesive 24 is made to flow from the lower end of the support leg 1 to the concrete slab 3 through the through hole. The support leg 1 may be fixed to the concrete slab 3 with the anti-rotation adhesive 24 so that the support leg 1 does not move after the floor plate 4 is installed.

[0078]

As described above, according to the present invention, since the support plate is made of metal, the strength can be secured and the floor can be reduced even if the plate thickness is thin. Further, since the floor plate and the support plate of the support leg are fixed by driving the self-tapping screw, a bolt insertion hole is formed in the floor plate, a screw hole or a bolt insertion hole is formed in the support plate of the support leg, and further, Since it is not necessary to weld the nut to the back surface of the support plate, the labor is saved accordingly, and it is not necessary to align the bolt insertion hole of the floor plate with the screw hole or bolt insertion hole of the support plate. Work can be done easily and quickly. In addition, the self-tapping screw bites and stabilizes (recessed groove, through hole) so that it can smoothly bite on the support plate, so that it is possible to accelerate the subsequent biting, and the self-tapping screw can be quickly and quickly It is possible to drive it reliably and carry out the construction work smoothly.

[Brief description of drawings]

1A is an enlarged sectional view showing a supporting leg portion of FIG. 2, and FIG. 1B is a plan view showing a structure of a supporting plate of the supporting leg.

FIG. 2 is a cross-sectional view showing a state in which a floor plate is supported by the support legs according to the first embodiment of the present invention.

FIG. 3 is a plan view showing a structure of a support plate according to a modified example 1.

FIG. 4 is a plan view showing the structure of a support plate of Modification 2;

FIG. 5 is a plan view showing the structure of a support plate of Modification 3;

FIG. 6 is a view corresponding to FIG. 1 (a) showing a state in which a floor plate is supported by support legs according to Embodiment 2 of the present invention.

FIG. 7 (a) is a view corresponding to FIG. 1 (a) showing a state in which a floor plate is supported by support legs according to a third embodiment of the present invention, and FIG. 7 (b).
[FIG. 3] is a plan view showing a configuration of a support plate of the support leg.

8A is a sectional view taken along line AA of FIG. 7B, and FIG. 8B is a sectional view taken along line BB of FIG. 7B.

9 (a) is a view corresponding to FIG. 1 (a) showing a state in which a floor plate is supported by supporting legs according to Embodiment 4 of the present invention, and FIG. 9 (b).
[FIG. 3] is a plan view showing a configuration of a support plate of the support leg.

10A is a sectional view taken along line AA of FIG. 9B, and FIG. 10B is a sectional view taken along line BB of FIG. 9B.

11 (a) is a view corresponding to FIG. 1 (a) showing a state in which a floor plate is supported by support legs according to Embodiment 5 of the present invention,
FIG. 6B is a plan view showing the structure of the support plate of the support leg.

12 (a) is a view taken in the direction of arrow X in FIG. 11 (b), FIG. 12 (b) is a sectional view taken along the line AA of FIG. 11 (b), and FIG.
It is sectional drawing in the BB line of 1 (b).

FIG. 13 (a) is a view corresponding to FIG. 1 (a) showing a state in which a floor plate is supported by support legs according to Embodiment 6 of the present invention,
FIG. 6B is a plan view showing the structure of the support plate of the support leg.

14A is a sectional view taken along line AA of FIG. 13B, and FIG. 14B is a sectional view taken along line BB of FIG. 13B.

FIG. 15 is a construction example of a floorboard using the support legs according to the sixth embodiment of the present invention, (a) shows a state in which three floorboards are arranged so as to form a T-shaped gap, (b) Shows the state where two floor boards are arranged in parallel with a gap in between.

FIG. 16 is a perspective view showing a state in which a floor plate is supported by supporting legs of a conventional example in which the supporting plate is made of metal.

FIG. 17 is an enlarged sectional view showing a supporting leg portion of FIG.

FIG. 18 is a perspective view showing a state where the floor plate is supported by the supporting legs of the conventional example in which the supporting plate is made of wood.

[Explanation of symbols]

1 Support leg 3 Concrete slab (foundation floor) 4 floor boards 9 Support bolt 13 Support plate 14 Boss 14a Female screw part 15 Self-tapping screw 16 Recessed groove (stabilizing means with bite) 19 Through hole (stabilizing means with bite) 20,22 Reinforcing rib 21 recess 23 Guide groove 24 Non-rotating adhesive

Claims (9)

(57) [Claims] 1. A floor plate construction support leg that is disposed between a base floor and a floor plate and supports the floor plate in a height-adjustable manner, and has a boss portion in which a female screw portion is formed in the center. A metal support plate that is fixed to the back surface of the floor plate by a self-tapping screw and supports the floor plate from below, is screwed into the female threaded portion of the boss, and the support plate is moved along the axis by a rotation operation around the axis. And a support bolt for adjusting the height of the floor plate from the base floor, and a self-tapping strap is provided on the contact surface of the support plate with the floor plate .
A large number of groove grooves that hook the tip of the cru
A support leg for floorboard construction, characterized in that the recessed groove constitutes a biting stabilization means for stabilizing the biting of the self-tapping screw when the self-tapping screw is driven. 2. The floor, which is arranged between a foundation floor and a floorboard.
It is a support leg for floor board construction that supports the board freely adjustable in height.
Has a boss with a female thread in the center,
Fixed to the surface with a self-tapping screw
A metal support plate that is supported from below and the female screw part of the boss part are screwed together to allow rotation around the axis.
The support plate is moved along the axis to move the base plate of the floor plate.
Equipped with a support bolt that adjusts the height from the foundation floor, the tip of the self-tapping screw enters the above support plate.
A large number of through holes that allow
Is smaller than the thread outer diameter of the self-tapping screw
Set and drive the self-tapping screw above
When doing so, stabilize the bite of the self-tapping screw.
The bite stabilization means is constituted by the through hole.
A supporting leg for floor board construction, which is characterized in that 3. A floor construction for support leg according to claim 1 or 2, biting stabilizing means, floor construction for supporting legs, characterized in that provided in the entire support plate. 4. A floor construction for support leg according to claim 1 or 2, biting stabilizing means, it is provided in a region excluding at least one of the boss portions and around the support plate peripheral edge of the support plate Support legs for floor board construction. 5. A floor construction for support leg according to claim 1 or 2, the support plate, the support leg floor construction, wherein a reinforcing rib is provided. 6. The support leg for floor plate construction according to claim 5 , wherein the reinforcing rib is provided so as to project on the back surface side of the support plate, and the contact surface of the support plate with the floor plate is recessed corresponding to the reinforcing rib. A support leg for floorboard construction, characterized in that a section is provided. 7. The floor plate construction support leg according to claim 5 , wherein the reinforcing rib is formed by bending a peripheral edge of the support plate to the back surface side of the support plate. 8. The floor plate construction support leg according to claim 6 , wherein a guide groove extending toward the boss side is connected to the recessed portion, and the rotation preventing adhesive injected into the tip of the support bolt is used as the guide. A support leg for floorboard construction, wherein the support leg is guided through the groove into the recess. 9. The floor construction supporting legs according to claim 1 or 2, the boss portion, a supporting floor construction, characterized in that are projected on at least one surface of the front and back surfaces of the support plate leg.