JP3465040B2 - Laying double floor structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor-laying type double floor structure, and more particularly, it is capable of following a flat surface of a floor, nonflammable, and ensuring a wide and efficient wiring space. It relates to a fixed floor double floor structure.

[0002]

2. Description of the Related Art A double-floor structure of the type in which a support leg adjustable in the height direction is erected on a floor surface and a floor plate is laid on the support leg has been conventionally used. In addition, as shown in FIG. 8, a double floor for installation of a type in which a base plate A is laid on a floor surface, and a floor plate is laid on an appropriate number of support legs B erected on the base plate A. The structure is also conventionally used. In the former double floor structure, the height of the floor board of the double floor can be adjusted by adjusting the height of the support legs or adopting other support legs with different heights, and the thickness and amount of wiring used can be adjusted. Together, it is possible to form double floors of various heights. Therefore, it is an effective means in a thick room such as a computer room and requiring a lot of wiring.

On the other hand, in the latter double-floor structure for laying, the base plate A is flexible, and the base plate can be laid following the unevenness of the floor surface. The floorboards can be laid without any adjustment, and the construction is simple, and it is an effective means for floor renovation such as office floor renovation or tenant change. Further, the floor plate can be easily removed, and floor wiring and repair can be easily performed from the upper portion.

[0004]

As described above, in the double floor structure of the type in which the supporting legs are directly erected on the floor surface, the height of the supporting legs is adjusted according to the unevenness of the floor surface. However, it was necessary to lay a floorboard. Further, the supporting legs and the floor plate are unstable by simply mounting the floor plate, and it is necessary to firmly connect them by screwing means such as bolt tightening. It had to be tightened or released, which was troublesome. Furthermore, the floor surface of the double floor rises more than necessary, and as a result, the ceiling height becomes low, and its use range was limited to be adopted as the double floor structure in the office space of a normal office. . In addition, walking feeling is bad,
The soundproofing performance was also not good.

On the other hand, in the stationary type double floor structure, it is necessary to adopt a flexible material as the base plate A so that it can follow the unevenness of the floor surface. Most of them were made of flexible rubber or thin synthetic resin, and were not suitable for floors that required nonflammability. Further, when a metal member is used as the base plate A, it is difficult to obtain flexibility for unevenness. Further, although the floor plate is supported by the supporting legs B on the base plate A, since the floor plate itself has no strength, as shown in FIG. 8, a large number of supporting legs B are used to withstand a predetermined load. It stands on the board A. as a result,
There is little space that can be secured as the wiring space under the floor, and it is impossible to arrange many wirings freely, and there is a problem in construction because the supporting legs interfere during wiring.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides an inlaid double-floor structure in which a double-floor surface can be easily formed and maintenance is easy. It is possible to provide a stationary double-floor structure that can cope with unevenness of the floor surface, is excellent in nonflammability, and can secure a wide wiring space under the floor space. Further, the present invention provides a non-combustible and rigid floor panel as a floor material used for the stationary double floor structure.

As concrete means thereof, a plurality of support legs standing on the floor surface of the building, a floor panel laid on the support legs, and a base strip connecting the support legs to each other,
The base strip is formed by continuously bending a strip-shaped long metal member, and forming a rising portion and a resilient fastening portion in which the rising portions are connected to each other by a horizontal portion at a corner thereof. Inserting the engaging portion into the space portion of the support leg, fitting the rising portion into an opening communicating with the space portion formed vertically in the wall portion of the support leg, and supporting the support leg and the base. It is characterized by an inlaid double-floor structure in which a belt-like body is connected so as to be relatively movable in a loosely fitted state.

Further, the base strip is characterized by an inlaid double-floor structure bent into a substantially square shape. Furthermore,
The above-mentioned base strip is characterized by a stationary double-floor structure in which a corner is continuously formed in a shape in which a right-angled isosceles triangle is cut out, and an engaging portion is vertically formed at a position of a hypotenuse of the corner. .

Further, the present invention is characterized by a stationary double-floor structure in which the rising portions of the engaging portions are erected so as to stand upright in an arcuate manner.

Further, the support leg has a shape in which a substantially cylindrical body is vertically divided into quarters, and has an outer shape including two side walls, a curved wall and a top plate. It is surrounded by a plate, and the inside thereof is a space portion, and the space portion is characterized by an inlaid double-floor structure communicating with the opening. Further, the space between both openings formed in the connecting portion between the side wall of the support leg and the curved wall is characterized by a double-laid floor structure which is formed slightly shorter than the space between the rising portions of the base strip. .

Further, a hole which is formed at the lower edge of the opening of the support leg and serves as an entrance and exit of the rising portion of the base strip is an elongated hole extending in the vertical direction, and the lower end of the rising portion is loosened in the hole. It is characterized in that it is inserted in a fitted state, and the support leg and the base strip are connected so as to be movable relative to each other, and the top plate of the support leg is made into a flat plate shape, and the floor panel is fixed to the substantially central portion thereof. It is characterized by a double-layered floor structure with protrusions for forming.

In the floor panel having a double floor structure, the front plate and the rear plate have a double structure of an isosceles right triangle.
A space is formed between the two, and the back plate is characterized in that the edges of each side thereof are bent to the front plate side, and the back plate of the front plate is polymerized to form a polymerized portion for reinforcement. On the hypotenuse part of the front plate of the panel, a bending part to the back plate side is formed on one side, a bending groove part for receiving the bending part is formed on the other side, and a space for visual observation is formed. It is characterized in that the notch portion that becomes is continuously formed. In addition, a notch for drawing out the underfloor wiring is formed at the edge of two sides of the floor panel, and the shape of the notch is such that the notch depth from both base ends of the notch is different. It features a floor panel with a double floor structure that has a notched shape.

[0013]

DETAILED DESCRIPTION OF THE INVENTION

EXAMPLE A floor-laying double-floor structure of the present invention is formed by bending a base strip 1 into a substantially square shape, arranging the base strip 1 at four corners of the base strip 1, and fixing the base strip 1 by means of fastening portions of the base strip. Leg 2,
It comprises a floor panel 3 laid on the supporting legs 2. The floor-standing double-floor structure of the present invention will be described below.

FIG. 1 shows a perspective view of the base strip 1. The base strip 1 is formed by bending and continuously forming a strip-shaped or linear elongated metal member, has a substantially square shape, and has engaging portions 4 formed at its four corners. The engagement portion 4 is formed of a rising portion 5, a horizontal bridge portion 6, and a recess 7 formed in an intermediate portion of the horizontal bridge portion 6.

The engaging portion 4 is a square base strip-shaped member 4.
At the position of the oblique side of the corner cut portion, which is formed by notching the corner portion in a substantially right-angled isosceles triangle shape, it is formed upright continuously with both sides of the adjacent strip-shaped metal member.

The rising portion 5 is erected so as to stand upright in an outwardly drawn arc having a large curvature, and the upper portion of the rising portion 5 is continuously formed by a horizontal portion 6. A mountain-shaped recess 7 is formed downward in the middle of the lateral bridge 6. As described above, the engaging portion 4 has a U-shape with the lower portion opened as a whole, and the elasticity of the member and the concave portion 7 serve as a buffer against the compressive force. It is formed to have elasticity. Therefore, the fastening portion 4 is
The overall shape is elastic.

FIG. 2 is a perspective view of the support leg 2. The support leg 2 has a shape in which a substantially cylindrical body is vertically divided into quarters, and the side walls 8 and 9, the curved wall 10 and the top plate 11 are provided. The outer shape is composed of The inside surrounded by the side walls 8 and 9, the curved wall 10 and the top plate 11 is a space 12. Openings 13 and 13 ′ are formed in the center of each connecting portion between the side walls 8 and 9 and the curved wall 10 in the vertical direction, and communicate with the inner space 12. The interval W between the one opening 13 and the other opening 13 ′ is equal to the rising portion 5
It is formed to be slightly shorter than the mutual distance H.

The support legs 2 are inserted into the engaging portions 4 formed at the four corners of the base strip 1 from above, so that the engaging portions 4 are inserted into the space 12. that time,
Since the interval W between the openings 13 and 13 'is formed shorter than the interval H between the rising portions 5, both rising portions 5 come into contact with the inner wall of the space portion 12, but the engaging portion 4 has Due to the elasticity in the member direction, it will be inserted with a slight contraction. When it is further dropped, the rising portions 5 reach the positions where they are fitted into the respective opening portions 13 and 13 ', and due to the elastic force, both curved portions of the rising portion 5 are fitted into the respective opening portions 13 and 13'. Will be done. By the above insertion, the rising portion 5 is fitted with the side edges of the member in contact with the openings 13 and 13 '.

When the support leg 2 is erected on the base strip 1, one of the lower portions of the locking projections 14 formed at the lower edge of the opening 13 of the connecting portion between the side walls 8 and 9 and the curved wall 10 is formed. Hole 1
5, the lower edge of the rising portion 5 is inserted, rises in the space 12 of the support leg 2, descends on the other opening 13 'side, and is a locking projection formed on the lower edge of the opening 13'. 14 '
The lower edge portion of the rising portion 5 extends outward from the other hole 15 'in the lower portion of the. Therefore, the fitted state of the base strip 1 and the support leg 2 becomes strong, and the support leg 2
Will never fall out.

In the fitted state, the engaging portion 4 is constrained by at least two places by the respective opening portions 13 and 13 ', and unless the engaging portion 4 is contracted to release the fitted state. The support leg 2 does not move in the horizontal direction, and therefore the installation position of the support leg 2 does not shift in this direction. Further, by making the shape of the holes 15 and 15 ′ into a long hole space with a margin in the vertical direction,
A space in which the lower edge of the rising portion 5 of the base strip 1 moves up and down is formed in the holes 15 and 15 ', and both are in a loosely fitted state and are movably connected to each other.
Therefore, even if the base strip 1 is lifted and inserted at the position of the supporting leg 2 due to the unevenness of the floor, the lift can be absorbed by the holes 15 and 15 '. The upper end portions 16 and 16 ′ of the connecting portion between the side walls 8 and 9 and the curved wall 10 are continuously formed as a contact portion of the rising portion 5 of the base strip 1.

On one side wall 8 is formed a protrusion 17 standing from the bottom side thereof, and on the other side wall 9, the protrusion 17 is formed.
A locking portion 18 that engages with is formed. The protrusion 17
Can also be formed by cutting and raising a part of the side wall.
By the projection 17 and the locking portion 18, it is possible to connect other adjacent support legs 2. By connecting four columnar bodies that are divided into quarters in the vertical direction, it is possible to form a substantially columnar support leg.

The top plate 11 has a flat plate shape, and has a truncated cone-shaped projection 19 for fixing the floor panel 3 on the curved wall 10 side at the center thereof.

FIG. 3 shows a base strip 1 laid on the floor.
2 is a plan view of the base portion showing a state in which the support legs 2 obtained by vertically dividing the columnar body into quarters are fitted to each other to form a columnar body, and these are arranged. By dropping the support legs 2 into the engaging portions 4 formed at the four corners of the base strip 1, the rising portions 5 are fitted into the openings 13 and 13 '. Then, by engaging the protrusion 17 with the locking portion 18 of another adjacent support leg 2, the state shown in FIG. 3 can be obtained.

Therefore, as compared with the base portion of the conventional example shown in FIG. 8, the effective space for wiring can be dramatically increased. Furthermore, the curved wall 10 of the support leg 2
Since it is arranged on the side that comes into contact with the wiring, it becomes possible to smoothly change the direction of the wiring due to the curved surface.

In the above-described embodiment, the shape of the support leg 2 is divided into quarters in the longitudinal direction of the substantially cylindrical body, so that one type of the support leg 2 has a shape of 1/4 of the cylindrical body. 1/2 of body
The shape of the floor, the shape of the cylinder 3/4 and the shape of the cylinder can be combined as needed, so that the corners of the floor, the protrusions of the pillars, etc. It is possible to obtain a base part that can handle the above. In addition, as a supporting leg, a shape of a quarter of a cylindrical body, one of a cylindrical body
The shapes of the protrusions 17 formed on the support leg 2 can be obtained by preparing the shapes such as a 1/2 shape, a 3/4 shape of a cylindrical body and a cylindrical shape
It is not necessary to provide the engaging means for the locking portion 18.

FIG. 4 shows floor panels 3 and 3'laid on the support leg 2. The floor panel 3 has a substantially right-angled isosceles triangle shape, and its hypotenuse faces the other floor panel 3 '. Let
By abutting, a square floor panel can be formed. The floor panels 3 and 3'are made of a steel plate having a thickness of about 2 mm, have a double structure of a front plate 20 and a rear plate 21, and form a space 22 between them. Also, the back plate 2
1, a side edge portion of each side of the isosceles right triangle is bent toward the front surface plate 20 side, and is superposed on the back surface of the front surface plate 20 to form a superposed portion 23,
The reinforcing structure is formed by forming 24 and 25. In addition, a similar overlapping portion 26 is formed in the central portion of the floor plate, if necessary. By the overlapping portions 23 to 26, the floor panels 3, 3 '
Gives strength to.

On the hypotenuse of the front panel 20 of the floor panels 3 and 3 ', a bent portion 27 to the back panel 21 side is formed on one side, and the bent portion 27 is formed on the other side, with the substantially central portion as a boundary. A bent groove portion 28 for receiving the bent groove portion 28 is formed. Further, a cutout portion 29 is formed in the oblique side portion. When the floor panels 3 each having a substantially right-angled isosceles triangle having the above-mentioned configuration are brought into contact with each other so that the hypotenuse portions of the other floor panels 3'adjacent to each other face each other and form a square, one of the bent portions 27 becomes the other floor. Both panels 3, 3'enter the bending groove 28 of the panel 3 '.
Will be engaged.

Further, the cutout portion 29 faces the cutout portion 29 'of the other floor panel 3', so that the space portion 30 is formed. Due to this space portion 30, various wirings arranged under the floor panels 3, 3'can be visually observed from above the floor. In particular, the space 30 is sufficient for confirming the number of lines, the color of the lines, the thickness, and the like. The size of the space portion 30 can be freely selected by appropriately selecting the width and length of the cutout portions 29, 29 '.

FIG. 5 is a plan view of the other floor panels 31, 31 '. The bent portion 32 and the bent groove portion on the hypotenuse portion are lengthened, and the space portion 34 formed by the cutout portion 33 is also formed. Formed long. Also, the floor panel 3
In the case of Nos. 1 and 31 ', notches 35 for drawing out the underfloor wiring are formed at the edges of the two sides from below the floor panels 31, 31'. The shape of the cutout portion 35 is such that the cutout depths from both base ends of the cutout portion 35 are different. Further, by changing the position of the cutout portion 35 having different cutout depths, when the floor panels 31, 31 ′ are laid as shown in FIG. 6, the cutout depth states of the cutout portions 35 facing each other are shown. This makes it possible to change the size of the spaces 36 and 37 formed. Therefore, a thick line can be drawn out in the large space 36 and a thin line can be drawn out in the small space 37, and the sizes of the formed spaces 36 and 37 can be changed according to the wiring under the floor panel. You can

FIG. 7 (a) is a rear view of the floor panel 3, in which the back plate 21 is bent toward the front plate 20 at the edges of the sides of the isosceles right triangle as described above. It shows a state in which overlapping portions 23, 24 and 25 are formed by being overlapped on the back surface of 20. In addition, an overlapping portion 26 that overlaps the surface plate 20 is formed in the center of the floor plate, if necessary. The floor panel 3 is reinforced by the overlapping portions 23 to 26.
Further, as described above, it is shown that the hypotenuse portion of the floor panel 3 is formed with a bending portion on one side and a bending groove portion 28 for receiving the bending portion on the other side with the central portion as a boundary. There is.

FIG. 7B shows a back view of another embodiment of the floor panel 3, in which the overlapped portion 25 on the hypotenuse side of the back plate 21 is gradually thickened toward the central portion thereof. Since the central portion of the hypotenuse portion is the portion where the amount of flexure is greatest, the above reinforcement is an effective means.

The hypotenuse portion of the floor panel 3 comes into contact with the hypotenuse portion of another adjacent right-angled isosceles triangular floor panel 3'as described above. The support leg 2 is not arranged below the contact portion. Therefore, when a load is applied from above, the burden on the central portion of the hypotenuse portion increases. But as mentioned above,
The floor panels 3, 3'of the present invention are made of steel plate having a predetermined thickness, the back plate of the relevant part is bent to be reinforced as a double structure overlapping with the front plate, the bent portion 27 is provided on one side, and the other part is provided on the other side. By forming the bent groove portion 28 for receiving the bent portion 27, the floor panel having an isosceles right triangle shape is formed integrally, so that the strength of the floor panel can be increased.

As shown in FIG. 7, the rear plate 21 has a truncated cone-shaped projection for fixing the floor panel 3 formed on the top plate 11 of the support leg 2 to each corner of an isosceles right triangle. 19
Is formed with a recess 38 for fitting into. A half recess 39 is formed at the end on the side of the hypotenuse, but when the floor panels 3 and 3'having a right-angled isosceles triangle shape are connected to each other, the above-mentioned half recesses of both floor panels 3, 3'are formed. 39 are opposed to each other, and a recess having the same shape as the recess 38 is formed.

The recess 38 and the half recess 39 formed in the back plate 21 of the floor panels 3 and 3'are used as the top plate 11 of the support leg 2.
The floor panel 3, 3'can be mounted and fixed on the base portion shown in FIG.

Therefore, the floor panels 3, 3'in the shape of an isosceles right triangle on the support leg 2 of the base portion are supported at three points by the support leg 2 and are prevented from moving in the horizontal direction. It Furthermore, the floor panels facing each other can be connected by the bent portions 27 and the bending groove portions 28 formed on the oblique sides of the facing floor panels, and four points are supported by the support legs 2 and the square shapes connecting the oblique sides to each other. Floor panels can be obtained. In addition, the oblique side is the surface plate 20.
Since it is reinforced by the overlapping portion 25 formed by the back plate 21 and the floor panel, it is possible to obtain sufficient strength in strength even if the floor panel is formed thin.

[0036]

The floor laying double floor structure according to the present invention having the above-mentioned structure has a structure in which the supporting legs can be easily fitted to the base strip, and at the same time, it is hard to come off once fitted.
It was possible to obtain a stationary double-floor structure with good engagement and no movement by simple assembly work at the site. Also, since the floor panel is made of steel plate, it is heavy, but since the floor panel of the present invention has a substantially right-angled isosceles triangle shape, the weight is half that of a square floor panel, and transportation and installation It has become possible to obtain a floor panel that is easy to perform.

Further, since the support leg and the base strip are connected so as to be movable relative to each other, the followability to unevenness of the floor surface is improved, and rattling of the double floor is eliminated. In addition, it is possible to obtain a double-floor structure having a feeling of weight and excellent walking feeling.
Further, since all the constituent members of the double floor structure including the floor panel and the like can be made of non-combustible material, the non-combustibility can be improved.

Further, since it is possible to widen the standing intervals of the supporting legs for supporting the floor panel and to reduce the thickness of the floor panel, it is possible to secure a large wiring space under the floor panel. .

[Brief description of drawings]

FIG. 1 is a perspective view of a base strip and a support leg.

FIG. 2 is a perspective view showing the connection between the base strip and the support leg.

FIG. 3 is a plan view of a base portion.

FIG. 4A is a front side plan view of the floor panel. (B) Sectional drawing of a floor panel.

FIG. 5 is a front side plan view of another embodiment of the floor panel.

FIG. 6 is a plan view showing a state in which the floor panel shown in FIG. 5 is laid.

FIG. 7 (a) is a back side plan view of the floor panel. (B) The top view of the other Example of the back surface side of a floor panel.

FIG. 8 is a perspective view of a conventional example of a base plate.

[Explanation of symbols]

A ... Base plate B: Support legs 1 ... Base strip 2 ... Support legs 3, 3 '... floor panel 4 ... Locking part 5 ... Rising part 6 ... Horizontal section 7 ... Recess 8, 9 ... Side wall 10 ... Curved wall 11 ... Top plate 12 ... Space 13, 13 '... Openings 14, 14 '... Locking protrusion 15, 15 '... holes 16, 16 '... upper end 17 ... Protrusion 18 ... Locking part 19 ... Conical protrusion 20 ... Surface plate 21 .. Back plate 22 ... Space 23, 24, 25 ... 26 ... 27 .. Bending section 28 .. Bending groove 29, 29 '... cutouts 30 ... Space 31, 31 '... Floor panels 32 .. Bent section 33 .. Notch 34 ... Space 35 ... Notch 36, 37 ... Space 38 ... 39 ... Half recess

─────────────────────────────────────────────────── ───Continued from the front page (56) Reference JP-A-10-280654 (JP, A) JP-A-10-46794 (JP, A) JP-A-8-218604 (JP, A) JP-A-9- 158452 (JP, A) Actual Kaihei 5-77434 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E04F 15/024 E04F 15/00

Claims (11)

(57) [Claims] 1. A plurality of support legs standing on the floor of a building,
It comprises a floor panel laid on the supporting legs and a base strip connecting the supporting legs to each other. The base strip is formed by continuously bending a strip-shaped long metal member, and a rising portion is formed at a corner thereof. And an elastic engaging portion in which the rising portions are connected to each other by a horizontal portion, and the engaging portion is inserted into the space portion of the support leg and is formed in the vertical direction on the wall portion of the support leg. In addition, the stationary double-floor structure is characterized in that the rising portion is fitted into an opening communicating with the space portion, and the support leg and the base strip are connected so as to be relatively movable in a loosely fitted state. . 2. The laid double-floor structure according to claim 1, wherein the base strip is formed by bending into a substantially square shape. 3. The base band-shaped body is characterized in that a corner portion is continuously formed into a notched shape of an isosceles right triangle, and an engaging portion is formed upright at a position of a hypotenuse of the corner portion. The stationary double-floor structure according to claim 1. 4. The in-laid double-floor structure according to claim 1, wherein the rising portions of the engaging portions are formed in an arcuate shape so as to face each other and stand upright. . 5. The support leg has a shape in which a substantially cylindrical body is vertically divided into quarters, and has an outer shape including two side walls, a curved wall and a top plate. The inlaid double-floor structure according to any one of claims 1 to 4, which is surrounded by and has a space portion inside thereof, and the space portion communicates with the opening portion. 6. The distance between both openings formed in the connecting portion between the side wall of the support leg and the curved wall is slightly shorter than the distance between the rising portions of the base strip. Item 6. The double-laid floor structure according to any one of items 1 to 5. 7. A hole, which is formed at the lower edge of the opening of the support leg and serves as an entrance and exit of the rising portion of the base strip, is an elongated hole extending in the vertical direction, and the lower end of the rising portion is loosely fitted in the hole. The stationary double-floor structure according to any one of claims 1 to 6, wherein the support leg and the base strip are connected so as to be movable relative to each other. 8. The floor laying machine according to claim 1, wherein the top plate of the support leg is flat, and a protrusion for fixing the floor panel is formed at a substantially central portion thereof. Double floor structure. 9. The floor panel has a front plate and a rear plate having a double structure of an isosceles right triangle, and forms a space between them.
9. The back plate is formed by bending the edges of each side to the front plate side and superposing on the back surface of the front plate to form a superposed portion for reinforcement. Inlay double floor structure. 10. The floor panel has a front plate with a hypotenuse portion having a substantially central portion as a boundary, one side having a bent portion toward the back plate side, and the other side having a bent groove portion for receiving the bent portion. The floor-laying double-floor structure according to any one of claims 1 to 9, characterized in that a notch portion which is a space portion for visual observation is continuously formed. 11. A floor panel is formed with cutouts at two edges thereof for drawing out underfloor wiring, and the shape of the cutouts is the depth of cut from both base ends of the cutouts. The inlay double-floor structure according to any one of claims 1 to 10, wherein cutout shapes are formed so as to have different heights.