JPH08177217A - Bearing device of floor panel for double floor - Google Patents

Abstract

PURPOSE: To facilitate the manufacturing of a bearing device of a floor panel for a double floor and to share a bearing board whether or not a stringer is used by providing a cap having no projection to the bearing board when the stringer is not used. CONSTITUTION: A mounting hole 83 passing through up and down is formed in the lower surface of a stringer 80 and, at the same time, a resin spacer 40 partitioned between adjacent floor panels 90 is positioned between a bearing board 30 and the stringer 80. A projection 43 fitted to the mounting hole 83 of the stringer 80 is formed in the upper surface of the spacer 40.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support device for a floor panel of a double floor, and is particularly suitable for a double floor for floor air conditioning in which a sealing property is required between the floor panels.

[0002]

2. Description of the Related Art Conventionally, as a supporting device for a floor panel of this type of double floor, a supporting leg is erected on the floor surface at predetermined intervals, and is fixed to the supporting leg in a height-adjustable manner. It is known that a support plate and a stringer placed on the upper surface of the support plate and connecting adjacent support plates to each other are connected (for example, Japanese Utility Model Publication No. 56-38110 and Japanese Utility Model Publication No. 52-30120).
Gazette, Jitsukaihei 3-119132 gazette, etc.).

Each publication will be described below. The supporting device disclosed in Japanese Utility Model Publication No. 56-38110 is a groove type terminal device in which upper and front surfaces are opened at cross positions at every 90 degrees on height adjusting support legs standing on the floor. have. An upward protrusion protruding upward is formed at the bottom of a pair of vertical and horizontal stays of this groove type terminal device, and at a position where one end of a vertical and horizontal stay (stringer) is fixed. A fitting hole corresponding to the protrusion is formed in the bottom portion of the groove-type terminal device, and the bottom plate on one side at the end portion of one stay (stringer) of the vertical and horizontal stays (stringers). And vertical and horizontal stay (stringer)
The vertical and horizontal stays (stringers) are fixed to the groove-type terminal device of the height adjusting support leg by fitting the fitting holes of the above into the protrusions of the groove-type terminal device.

Further, the supporting device disclosed in Japanese Utility Model Publication No. 52-30120 has a support piece protruding in four directions from a support stand of a leg rod standing on the floor surface. Has a protrusion protruding upward. The transverse beam (stringer) is provided with a hooking hole for hooking the protrusion. Then, the horizontal beam (stringer) is installed between the leg rods by engaging the engaging hole of the horizontal beam (stringer) with the protrusion of the support piece.

In the supporting device disclosed in Japanese Utility Model Laid-Open No. 3-119132, a large number of support legs are erected in a grid pattern on the floor surface, and the ends of the stringers are supported on the upper portions of the support legs. It forms a panel support cap. Through holes that penetrate the front and back sides are formed in the upper four sides of the panel support cap and in the portions that support the ends of the stringers. Then, a protrusion that fits into the through hole is formed at the end of the stringer. By fitting the protrusions into the through holes of the panel support caps, the stringers are attached in a bridging manner across the panel support caps of the support legs that are adjacent in four directions.

[0006]

However, in the above-mentioned conventional support device for a double-floor floor panel, since the protrusion and the through hole for locking the stringer must be formed directly in the support plate, There is a first problem that the structure of the supporting plate becomes complicated, and its manufacturing is troublesome and troublesome.

That is, since the supporting legs and the supporting plate must support the weight of the floor surface of the upper surface of the floor panel, strength as a kind of structural material is required. For this reason, most of the supporting legs and supporting plates are made of metal. Therefore, not only is it difficult to form the protrusions and the through holes in the metal support plate, but also the through holes may reduce the strength.

Further, in the above-described conventional support device for a double floor floor panel, since the protrusions and the through holes for locking the stringers are directly formed on the support plate, when the stringers are not used. Had a second problem that the support plate itself had to be replaced. Further, in the conventional support device for the floor panel of the double floor, the protrusion formed on either one of the stringer or the support leg and the mounting hole formed on the other and to which the protrusion is attached are simply arranged in the vertical direction. There is a third problem that it is easy to come off easily due to vibrations during the installation work or when a vertical or lateral force is applied via the floor panel after installation.

Therefore, the invention according to claim 1 has been made in view of the above-mentioned first and second problems of the prior art, and the purpose thereof is to provide a resin spacer, By forming a protrusion that locks the stringer, it is easy to manufacture.In addition, when the stringer is not used, a cap without a protrusion is attached to the support plate, regardless of whether the stringer is used or not. It is intended to provide a support device for a floor panel of a double floor, which can share a support plate.

The invention according to claim 2 is the above-mentioned claim 1.
In addition to the object of the invention described above, the present invention has been made in view of the third problem of the above-mentioned conventional technique, and the object thereof is as follows. That is, the invention according to claim 2 is to provide a support device for a floor panel of a double floor, in which the attachment hole and the stringer can be strongly connected.

The invention according to claim 3 is the above-mentioned claim 1.
Alternatively, the following object is achieved in addition to the object of the invention according to claim 2. That is, the invention according to claim 3 is to provide a support device for a floor panel of a double floor capable of preventing a gap from being generated between the floor panel and the spacer.

The invention according to claim 4 is the above-mentioned claim 1.
In addition to the objects of the inventions described in 1 to 3, the following objects are achieved. That is, the invention according to claim 4 is to provide a support device for a floor panel of a double floor capable of preventing static electricity from being generated.

[0013]

The present invention is to achieve the above-mentioned object, and the contents thereof will be described below with reference to the embodiments shown in the drawings. The invention according to claim 1 is characterized by the following three points. First, the stringer
On the lower surface of the (80), as shown in FIG. 2, for example, a mounting hole (83) penetrating vertically is formed.

Second, between the support plate (30) and the stringer (80), as shown in FIG. 1, for example, adjacent floor panels are provided.
The resin spacer (40) that separates the spaces (90) is located. Thirdly, on the upper surface of the spacer (40), as shown in FIG. 2, for example, a protrusion (43) that fits into the mounting hole (83) of the stringer (80) is formed. The invention according to claim 2 is
In addition to the features of the invention described in claim 1, the following features are provided.

That is, as shown in FIG. 3, for example, as shown in FIG.
(83) It bends when passing through, and after passing through, it is restored and the spacer
An elastic protrusion (45) for sandwiching the stringer (80) is formed between the elastic protrusion (45) and the upper surface of the (40). The invention described in claim 3 is in addition to the features of the invention described in claim 1 or 2,
It has the following features.

That is, the spacer (40) and the stringer
Between the (80) and the floor panel (9
The cushion member (50) is elastically deformed when the (0) is laid. The invention according to claim 4 is the above-mentioned claim 1
In addition to the features of the invention described in 3, the following features are provided.

That is, the spacer (40) is made of a conductive resin.

[0018]

[Operation] The invention according to claim 1 has the following effects. First, a spacer (40) is placed on the upper surface of the support plate (30), for example, as shown in FIG. Next, the spacer
Above the protrusion (43) of (40), for example, as shown in FIG.
The stringer (80) is arranged so that the mounting hole (83) of the stringer (80) is located.

As a result, the stringer (80) is supported by the support plate (30) via the spacer (40). According to the invention described in claim 2, in addition to the operation of the invention described in claim 1, the following operation is achieved. First, the stringer
For example, as shown in FIG. 2, the mounting hole (83) of the (80) is aligned with the protrusion (43) of the spacer (40) and is pushed in from above. At this time, the mounting hole (83) of the stringer (80) is aligned with the protrusion (43).
Of the elastic protrusion (45).

In that state, the stringer (8
Press 0 strongly toward the spacer (40),
The elastic protrusion (45) is pressed by the inner peripheral surface of the mounting hole (83) and bends.
Therefore, the elastic protrusion (45) of the protrusion (43) can pass through the inner peripheral surface of the mounting hole (83). Then, when the elastic protrusion (45) passes through the inner peripheral surface of the mounting hole (83) and comes out above the stringer (80), for example, as shown in FIG.
(45) restores and returns to its original shape.

Therefore, the stringer (80) is sandwiched between the elastic protrusion (45) of the protrusion (43) and the upper surface of the spacer (40). This prevents the stringer (80) from being easily disengaged from the protrusion (43) even when a force for pulling the stringer (80) upward is applied from the spacer (40). According to the invention of claim 3, the above-mentioned claim 1
Alternatively, in addition to the function of the invention described in claim 2, the following function is achieved.

That is, the spacer (40) and the stringer
Since the cushion member (50) is provided between the floor panel (90) and the spacer (4),
There is no gap between it and 0). According to the invention described in claim 4, in addition to the effect of the invention described in claim 1 or claim 2, the following effect is exhibited.

That is, each stringer (80) and each floor panel (90) is made by using the spacer (40) as a conductive resin.
Can be electrically connected to each other without being electrically insulated. This allows static electricity generated on the stringer (80) and the floor panel (90) to flow on the side wall surface in the room or on the floor (100) surface via the support plate (30) and the support leg (20). .

[0024]

1 to 4 show an embodiment of the present invention. FIG. 1 is an exploded perspective view of a supporting device for a floor panel of a double floor, and FIG. 2 is a connecting portion between a stringer and a spacer. FIG. 3 is an exploded perspective view, FIG. 3 is a vertical cross-sectional view of a connecting portion between a stringer and a spacer, and FIG. 4 is a front view of a floor panel supporting device after assembly is completed.

In the figure, reference numeral 10 denotes a floor panel support device, and a plurality of floor panel support devices 10 are fixedly arranged on the floor surface 100 at predetermined intervals and are fixed to each other. By placing the floor panel 90 on the floor 10 and fixing it, the floor panel 90 is lifted upward from the floor surface 100, and cables and ducts (not shown) are provided in the space between the floor surface 100 and the floor panel 90. It enables the wiring or piping of items.

As shown in FIGS. 1 to 4, the supporting device 10 is roughly classified into a supporting leg 20 standing upright on the floor surface 100 at predetermined intervals and a height adjustable on the supporting leg 20. A support plate 30 fixed, a spacer 40 made of a conductive resin fixed on the upper surface of the support plate 30, a cushion member 50 fixed on the upper surface of the spacer 40, and a plate 60 supported by the spacer 40. A sheet 70 located on the plate 60, and a floor panel 90 on the sheet 70.
It is provided between the floor panels 90 and a stringer 80 that fills a gap between the floor panels 90.

These components will be specifically described. As shown in FIG. 1, the support leg 20 includes a disc-shaped support bottom plate 21 placed on the surface of the floor 100, and the support bottom plate 21.
And a cylindrical support shaft 22 extending upward from substantially the center of the upper surface of the. The support shaft 22 is formed of a metal having strength and rigidity, and its lower end penetrates the support bottom plate 21 and is in contact with the surface of the floor 100. Further, although not shown in the figure, a height adjusting portion including a bolt shaft portion and a nut portion is formed at the upper end of the support shaft 22. The height adjusting portion has a hole in which the inner peripheral surface is threaded, a nut portion fixed to the upper end of the support shaft 22, and a cylindrical shape in which the outer peripheral surface is threaded, and the inside of the hole of the nut portion. It is formed of a bolt shaft portion that moves up and down by rotating.

Of course, the height adjusting portion is not limited to this, and any means capable of moving the support plate 30 up and down can be used.
It is also possible to use another mechanism. Although the supporting leg 20 is composed of the supporting bottom plate 21 and the supporting shaft 22, the supporting leg 20 is not limited to this, and the supporting leg 20 is not included in the supporting shaft.
You may comprise only 22.

As shown in FIG. 1, the support plate 30 is formed into a thin disc shape as a whole. And the support plate 30
Although not shown, the upper end of a bolt shaft portion that vertically moves inside the support shaft 22 is fixed to the center of the lower surface of the. Also,
Near the center of the support plate 30, four at 90 degree intervals in the circumferential direction,
A thin plate rectangular convex portion 31 protruding upward is formed. As shown in FIG. 1, the convex portion 31 is formed by hollowing the support plate 30 in a U shape and then bending it upward.

As shown in FIGS. 1 and 2, the spacer 40 is in the shape of a disk lid and has a body portion 41 that covers the upper surface of the support plate 30.
And a concave portion 42 which is concaved upward from the center of the lower surface of the main body portion 41 and into which the convex portion 31 of the support plate 30 is inserted,
Four protrusions 43 are formed on the same circumference of the upper surface of the main body 41 at intervals of 90 degrees, and the protrusions 43 projecting upward from the upper surface of the main body 41 are substantially flush with the upper surface of the main body 41. In addition, it has a plate support portion 44 protruding outward from the outer peripheral edge of the main body portion 41 in the radial direction.

The protrusion 43 is, as shown in FIGS.
The overall shape is a thin plate rectangular shape, and the upper end thereof is formed to be tapered in the thickness direction. Also, each protrusion 43,
The upper surface of the main body 41 is formed so that its horizontal longitudinal direction is the radial direction. Further, as shown in FIGS. 2 and 3, on both side surfaces of the protrusion 43, hemispherical elastic protrusions 45 protruding laterally outward from each side surface are formed.
The elastic protrusion 45 is formed so as to be easily elastically deformed and bent by an external force, and easily elastically deformed and restored after the external force is removed.

As shown in FIGS. 1 and 2, the cushion member 50 is formed in a disc shape whose overall shape matches the shape of the upper surface of the main body 41 of the spacer 40. Further, the cushion member 50 is located at the center thereof and the spacer 40
The cross-shaped cross-shaped holes 51 through which the recesses 42 of the spacer 40 can be inserted are formed, and the projections 43 of the spacer 40 are located at positions corresponding to the projections at intervals of 90 degrees on the same circumference of the cushion member 50. Square holes that penetrate the front and back so that
52 and are formed.

Although not shown, the cushion member 50 is formed by laminating a circular rubber sheet and a sponge. Of course, the material of the cushion member 50 is not limited to this, and may be a single elastic material such as rubber, sponge, or soft resin, or a combination thereof. As shown in FIGS. 1 and 2, the plate 60 is formed in the shape of a thin strip plate having a length slightly shorter than the length of the side of the floor panel 90. And, in the widthwise center of the plate 60, a trapezoidal protrusion that protrudes upward along the longitudinal direction and has a trapezoidal cross-section in the direction perpendicular to the longitudinal direction.
Has 61. When the floor panel 90 is laid, both ends of the plate 60 in the longitudinal direction are held with a slight gap between the spacers 40 of the adjacent support devices 10.

Further, when an uneven load is applied, such as when the floor panel 90 is attached and detached, one side of the plate 60 in the width direction abuts on the plate support portion 44 to prevent the stringer 80 from swinging. It As shown in FIGS. 1 and 2, the sheet 70 has a strip shape, the length in the longitudinal direction corresponds to the length of each side of the floor panel, and the width thereof is two adjacent floor panels 90.
It is set to be larger than the separation distance of. The sheet 70 includes a plate 60 and a stringer 80.
The space between the floor 100 and the floor panel 90 and the floor by being magnetically attracted to the steel plate that forms the bottom surface of the floor panel 90 while being formed of a magnetic material to increase the adhesion with It acts to seal the space on the panel 90.

As shown in FIGS. 1 and 2, the stringer 80 is a thin strip-shaped bottom 81 installed along a position corresponding to the trapezoidal protrusion 61 of the plate 60, and diagonally upward from one end of the bottom 81. J-shaped bent portion 82 that is continuously extended toward the bottom and the tip thereof is bent downward.
And have. As shown in FIGS. 1 and 2, the bottom portion 81 has square mounting holes 83 formed at both ends in the longitudinal direction, the attachment holes 83 penetrating through the front surface and the back surface and into which the protrusions 43 are inserted. Further, the bottom portion 81 is set so that its length in the longitudinal direction is slightly larger than that of the plate 60, and the mounting holes 83 at both ends are respectively provided in the respective facing protrusions 43 of the adjacent supporting device 10. It is inset.

As shown in FIGS. 1 and 2, the plate 60, the sheet 70 and the stringer 80 are formed by connecting the plate 60 and the stringer 80 with the sheet 70 sandwiched between the plate 60 and the stringer 80. Therefore, it is formed as an integral body for convenient handling. Next, the operation of the support device 10 for the floor panel of the double floor will be described.

First, the support legs 20 are erected on the floor surface at positions corresponding to the corners of the floor panel 90. Next, after adjusting the height of the support leg 20 to a predetermined height, the support plate 30 is fixed to the upper part of the support leg 20. Next, the spacer 40 is supported by the support plate 30 so that the recess 31 of the spacer 40 fits into the protrusion 31 of the support plate 30.
Fit on the upper surface of 30.

Thereafter, the cushion member 50 is fitted on the upper surface of the spacer 40 so that the projection 43 of the spacer 40 fits into the hole 52 of the cushion member 50 and the recess 42 of the spacer 40 fits into the cross hole 51 of the cushion member 50. . Next, as shown in FIGS. 1 and 2, the plate 60, the sheet 70, and the stringer 80 that are integrally formed.
Is the protrusion of the spacer 40 fixed to the top of the support leg 20.
It is positioned above the space 43 between the protrusion 43 of the spacer 40 fixed to the upper part of the other support leg 20 adjacent to the support leg 20. Then, the protruding portions 43 facing each other between the supporting legs 20.
And the mounting holes 83 at both ends of the stringer 80 are arranged so as to be respectively located.

Then, the stringer 80 is attached so that the mounting hole 83 of the stringer 80 is inserted into the protrusion 43 of the spacer 40.
Push from the top to the bottom. The mounting hole 83 of the stringer 80 that has been pushed in abuts on the side surface of the protruding portion 43 and the elastic protruding portion 44 that protrudes outward. In that state, when the stringer 80 is further strongly pushed downward toward the spacer 40, the elastic protrusion 44 is pushed by the inner peripheral surface of the mounting hole 83 and bends. Therefore, the elastic protrusion 44 of the protrusion 43 is attached to the mounting hole 83.
Can pass through the inner surface of.

When the elastic protrusion 44 passes through the inner peripheral surface of the mounting hole 83 and comes out above the stringer 80, the elastic protrusion 44 is restored and returns to its original shape. Therefore, the protrusion
The stringer 80 is sandwiched between the elastic protrusion 44 of 43 and the upper surface of the spacer 40. This prevents the stringer 80 from being easily disengaged from the protrusion 43 even if a force that pulls the stringer 80 upward is applied from the spacer 40.

Similarly, a supporting device arranged in a grid pattern.
The stringer 80 is passed between 10 and the corners of the floor panel 90 are placed on the four corners of the cushion member 50 of the supporting device 10. As a result, the floor panel 90 is placed at a predetermined distance from the surface of the floor 100.
Can be fixed. Support device 10 according to the present embodiment
Since the stringers 80 are firmly connected to each other, even if the stringers 80 are accidentally brought into contact with the stringers 80 during the assembling work, the stringers 80 do not easily come off and the workability can be improved. Also,
Even if a shock or the like is applied to the support device 10 due to a person moving on the floor panel 90 after the assembly, the stringer 80 can be prevented from coming off the support device 10.

Further, since the cushion member 50 is provided between the spacer 40 and the stringer 80, there is no gap between the floor panel 90 and the spacer 40 when the floor panel 90 is laid. Furthermore, since the spacer 40 is formed of a conductive resin, the stringers 80 and the floor panels 90 can be electrically connected to each other without electrically insulating them. This makes the stringer
Static electricity generated on 80 and floor panel 90 can be made to flow on the side wall surface in the room or on the floor 100 surface via support plate 30 and support legs 20.

Therefore, it is possible to prevent dust and dirt due to static electricity from accumulating between the floor panels 90. Further, it is possible to suppress unpleasant static electricity for a person on the floor panel 90, and it is possible to suppress a factor of noise to electronic devices installed on the floor panel 90, thereby improving reliability of these electronic devices. be able to.

[0044]

Since the present invention is constituted as described above, it has the following effects. Claim 1
According to the invention described, by forming a protrusion for locking the stringer on the spacer made of resin, the manufacturing is easy, and when the stringer is not used, a cap without a protrusion is used as the support plate. It is possible to provide a support device for a floor panel of a double floor by mounting the support plate so that the support plate can be shared regardless of whether or not the stringer is used.

According to the invention of claim 2, in addition to the effect of the invention of claim 1 described above, the following effect is exhibited. That is, according to the second aspect of the invention, it is possible to provide a support device for a floor panel of a double floor in which the connection between the mounting hole and the stringer can be strengthened. According to the invention of claim 3, in addition to the effects of the invention of claim 1 or claim 2, the following effects are exhibited.

That is, according to the invention of claim 3,
It is possible to provide a double-floor floor panel support device capable of preventing a gap from being generated between the floor panel and the spacer. According to the invention described in claim 4, in addition to the effects of the invention described in claims 1 to 3, the following effects are exhibited.

That is, according to the invention of claim 4,
It is possible to provide a support device for a floor panel of a double floor capable of preventing generation of static electricity.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a support device for a floor panel of a double floor.

FIG. 2 is an exploded perspective view showing a connecting portion between a stringer and a spacer.

FIG. 3 is a vertical cross-sectional view showing a connecting portion between a stringer and a spacer.

FIG. 4 is a front view showing the support device for the floor panel after completion of assembly.

[Explanation of symbols]

 10 Support device 20 Support leg 21 Support bottom plate 22 Support shaft 30 Support plate 31 Convex portion 40 Spacer 41 Main body portion 42 Recessed portion 43 Protrusion portion 44 Plate support portion 45 Elastic protrusion portion 50 Cushion member 51 Cross hole 52 Hole 60 Plate 61 Trapezoidal protrusion portion 70 Seat 80 Stringer 81 Bottom 82 Bend 83 Mounting hole 90 Floor panel 100 Floor

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Nobuyoshi Yamamoto, Inventor No. 301 Takahashi, Petit Maison 5-27-16, Kuromoto-cho, Meguro-ku, Tokyo (72) Keiji Yamaguchi 184 Maioka-cho, Totsuka-ku, Yokohama-shi, Kanagawa 1 Share Company Nifco (72) Inventor Masanobu Kawamoto 184 Maioka-cho, Totsuka-ku, Yokohama-shi, Kanagawa 1 Nifco, Inc.

Claims (4)

[Claims] 1. A support leg which is erected at a predetermined interval on a floor surface, a support plate which is fixed to the support leg in a height adjustable manner, and a support plate which is placed on an upper surface of the support plate and is adjacent to the support plate. In a support device for a double-floor floor panel including a stringer that connects plates to each other, a mounting hole that penetrates vertically is formed on the lower surface of the stringer, and between the support plate and the stringer. A support device for a double-floor floor panel, characterized in that a resin-made spacer for partitioning between adjacent floor panels is positioned, and a projection part that fits into the mounting hole of the stringer is formed on the upper surface of the spacer. . 2. The protrusion of the spacer is formed with an elastic protrusion that protrudes outward, bends when passing through the stringer mounting hole, and restores after passing through to sandwich the stringer with the upper surface of the spacer. The support device for a floor panel of a double floor according to claim 1, wherein: 3. Between the spacer and the stringer,
The support device for a floor panel of a double floor according to claim 1 or 2, wherein an elastically deformable cushion member is positioned. 4. The support device for a floor panel of a double floor according to claim 1, wherein the spacer is made of a conductive resin.