JP2829563B2 - Floor materials and floor structures for wiring and piping - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring for forming a storage pit for storing a cable such as various OA equipments, a conduit, a pipe such as a water supply / drainage hot water pipe, a sheath pipe through which a gas pipe is inserted under the floor. The present invention relates to a floor material and a floor structure for piping, and more particularly to a floor material and a floor structure for wiring and piping having a structure corresponding to a dimensional change due to thermal expansion or thermal contraction.

[0002]

2. Description of the Related Art Conventionally, cables connected to OA equipment and the like are arranged in a large number and in various ways. If these cables are exposed on the floor surface, they may be caught or broken during walking. There was a problem. Therefore,
In order to solve this, recently, floor materials are arranged on the base floor to form storage pits in which wiring and piping materials are stored, and a floor structure that covers the upper opening of the storage pits with a cover body has been constructed. In recent years, construction has been performed in which cables are stored under the floor by storing the cables in storage pits so that the cables are not exposed on the floor surface.

However, even if the floor structure using such a floor material is properly aligned at the time of construction, the floor material or the cover body may undergo thermal expansion or change due to a subsequent change in temperature or sunlight. There has been a problem in that heat shrinkage occurs and breakage occurs in an engagement portion between the flooring material and the cover body, or the flooring material floats up (FIG. 20).

[0004] It is conceivable to deal with such a problem by providing a clearance between the flooring material and the cover body, for example, but such a clearance is provided at the time of construction to install the flooring material. It is not easy to do so, and if the location where the floor material is installed is not indicated on the base floor, the contractor may perform the installation without providing a clearance between the floor material and the cover body Can be
Displaying the position of the floor material on the base floor is extremely troublesome.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and can cope with thermal expansion or thermal contraction, and can easily perform construction for coping with thermal expansion or thermal contraction. It is an object of the present invention to provide a floor material and a floor structure for wiring and piping that can be performed.

[0006]

Means for Solving the Problems As means for solving the above problems, the invention according to claim 1 is directed to a floor material forming a storage pit for storing wiring and piping materials, A mounting portion on which a cover body covering the device is mounted, and the mounting portion is provided with an obstacle that secures a clearance against thermal expansion or thermal contraction and does not hinder thermal expansion or thermal contraction. Flooring material for wiring and piping characterized by "
Is the content.

[0007] The invention according to claim 2 is characterized in that "the obstacle portion is
A flooring material for wiring and piping according to claim 1, characterized by being constituted by a biasing body having a restoring property.

The invention according to claim 3 is characterized in that the biasing body is provided so as not to hinder thermal expansion or thermal contraction by retreating into a recess communicating with the clearance. Flooring material for wiring and piping ”.

According to a fourth aspect of the present invention, there is provided an apparatus having a cover for covering a storage pit in which wiring and piping materials are stored, and a mounting portion for mounting the cover, wherein a space between the storage pits is formed. A floor structure, comprising: a flooring material to be disposed at a distance; and a clearance that secures clearance for thermal expansion or thermal contraction in the mounting portion and does not hinder thermal expansion or thermal contraction. , And its content.

[0010] The invention according to claim 5 includes "the floor structure according to claim 4 characterized in that the obstacle portion is constituted by an urging member having resilience".

The invention according to claim 6 is characterized in that the biasing body is provided so as not to hinder thermal expansion or thermal contraction by retreating into a recess communicating with the clearance. Floor structure. "

[0012] In the above-mentioned inventions, the obstacle part is a part of the floor material or the cover member which is deformed, moved, or removed and retreats from the clearance and thermally expands or contracts. It has a form that does not hinder expansion and contraction. The biasing member has a restoring property, and a leaf spring, a helical spring, rubber, an elastic foam, an elastically deformable protrusion, or the like is used. These obstacles and urging members are not limited to those formed integrally with the floor material or the cover body, but may be configured separately and detachably attached to the floor material or the cover body. Note that the biasing body may or may not be biased in the initial state when the cover body is placed on the placement unit.

[0013]

The floor material for wiring and piping according to the first aspect of the present invention secures a clearance against thermal expansion or thermal contraction and does not hinder thermal expansion or thermal contraction with the clearance secured. Providing a mounting part with an obstacle part enables easy and quick positioning of the cover body with reference to the obstacle part with clearance for thermal expansion or thermal contraction secured during construction. Is available. Since a clearance against thermal expansion or thermal contraction is secured between the cover body and the flooring material positioned in this way, and the obstruction is configured not to hinder thermal expansion or thermal contraction, rear,
When thermal expansion or thermal contraction occurs due to changes in temperature, sunlight, etc., it can absorb changes in elongation and shrinkage of the floor material or cover, and breaks at the engagement between the floor and cover. It does not happen or floor materials are lifted.

In the flooring for wiring and piping according to the second aspect of the present invention, the obstacle is constituted by an urging member having resilience, and the urging member heats the floor member or the cover. It is possible to follow changes in elongation and shrinkage of the floor material or the cover due to expansion or heat shrinkage. That is, when the floor material or the cover body thermally expands or contracts, the cover body is held by the urging body which is an obstacle due to its elasticity and when the floor body or the cover body returns to the original state due to its resilience. No rattling occurs.

In the flooring material for wiring and piping according to the third aspect of the present invention, the urging member is provided so as not to hinder thermal expansion or thermal contraction by being retracted into a recess communicating with the clearance. Accordingly, a floor material having no extra gap can be obtained by minimizing the clearance against thermal expansion or thermal contraction.

In the floor structure according to the fourth aspect of the present invention, a clearance for thermal expansion or thermal contraction is secured in the mounting portion, and thermal expansion or thermal contraction is prevented in a state where the clearance is secured. By providing no obstacles, the positioning of the cover body with respect to the flooring material can be performed easily and quickly with a clearance against thermal expansion or thermal contraction being ensured. Since a clearance for thermal expansion or thermal contraction is secured between the cover body and the flooring material positioned in this way, and the obstruction is configured not to hinder thermal expansion or thermal contraction,
After construction, when thermal expansion or thermal contraction occurs due to changes in air temperature, sunlight, etc., it can absorb changes in elongation or shrinkage of the floor material or cover, and engagement between the floor and cover. There is no destruction of the parts and no lifting of the flooring.

In the floor structure according to the fifth aspect of the present invention, the obstacle is constituted by an urging member, and the urging member causes thermal expansion or contraction of the floor material or the cover. It is possible to follow changes in expansion and contraction of the floor material or the cover body. That is, when the floor material or the cover body thermally expands or contracts, the cover body is held by the urging body which is an obstacle due to its elasticity and when the floor body or the cover body returns to the original state due to its resilience. No rattling occurs.

Further, in the floor structure according to the invention of claim 6, the biasing body is provided so as not to hinder thermal expansion or thermal contraction by being retracted into a recess communicating with the clearance. A floor structure having no extra gap can be obtained by minimizing the clearance against thermal expansion or thermal contraction.

[0019]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a floor material and a floor structure according to the present invention. 1 to 4 show one embodiment of a flooring material according to the present invention. As shown in FIG. 1, the flooring 10 is made of a synthetic resin and includes an upper flat top plate 11 and legs 12 supporting the top plate 11. The storage pits 4 are located between the storage pits.
0 is formed. Passages 13 capable of storing wiring and piping materials are formed between the legs 12 vertically and horizontally.
If necessary, the top plate 11 can be opened upward by cutting it along the dotted-line slits 14. The upper edge of the top plate 11 has a U
A mounting portion 15 having a groove shape is provided, and the mounting portion 15 has a metal cover 20 bent downward.
Side edge portion 20a is fitted. The mounting portion 15 is formed such that its groove width is wider than the thickness of the side edge portion 20 a of the cover body 20.

As shown in FIG. 2, a concave portion 16 is provided at an appropriate position of the top plate 11 along the mounting portion 15, and an obstruction formed by an urging body is provided in the concave portion 16. An elastically deformable tongue piece 30 is provided. This tongue piece 30
One end faces the mounting portion 15, the base end is continuously provided at the bottom of the recess 16, and the side surface is provided so as to protrude into the mounting portion 15. The tongue piece 30 can be bent toward the concave portion 16 and can return to the original state.
Since the base end is continuously provided at the bottom of the recess 16 formed more deeply, the base 16 is retracted and bent from the mounting portion 15 so as to widen the groove width of the mounting portion 15.

As shown in FIG. 3, when the side edge 20a of the cover body 20 is fitted into the
As a result, the side edge 20a of the cover body 20 is pressed, so that the cover body 20 is installed without play. One side wall 15 of the mounting portion 15 is provided outside the side edge portion 20a of the cover body 20 pressed by the tongue piece 30.
A space is formed between them and b. This space serves as a clearance against thermal expansion of the floor material 10 or the cover body 20, and can absorb a change in elongation when the floor material 10 or the cover body 20 thermally expands, as shown in FIG. It has become.

In the embodiment, the tip 30a of the tongue piece 30 is inclined, and the side edge 20
a can be easily fitted. Further, the side edge portion 20a of the cover body 20 is configured to be fitted into the mounting portion 15, so that the floor material 10 and the cover body 20 can be installed with good workability during construction. .

FIGS. 5 to 8 show another embodiment of the flooring material. As shown in FIG. 5, this floor material 10 is formed of a synthetic resin and has a flat top plate 11 at the top and leg portions 12 supporting the top plate 11, similarly to the floor material shown in FIG. Have been. Passages 13 capable of accommodating wiring and piping materials are formed vertically and horizontally between the legs 12, and the top plate 11 can be opened upward by cutting the top plate 11 along a dotted line slit 14 as necessary. It has become. A mounting portion 15 having a U-shaped groove shape opening upward is provided on a peripheral edge of the top plate 11, and the mounting portion 15 is provided on a side of a metal cover body 20 bent downward and formed. Edge 20
a is fitted. The mounting portion 15 is formed such that its groove width is wider than the thickness of the side edge portion 20 a of the cover body 20.

As shown in FIG. 6, a concave portion 16 is provided at an appropriate position of the top plate 11 along the mounting portion 15, and the concave portion 16 is provided as an obstacle portion constituted by an urging body. A biasing member 31 made of a synthetic resin having an arc-shaped protruding piece 31a elastically deformed on a side portion is attached. The biasing member 31 has an insertion pin 31b at a lower portion, and
It is fixed in the recess 16 by being inserted into a through hole 16a provided therein. Then, in a fixed state, the arc-shaped protruding piece 31 a that elastically deforms is attached so as to protrude into the mounting portion 15. In FIG. 5, the biasing member 31 is partially shown.

In this flooring 10, as shown in FIG. 7, the urging member 31 mounted in the recess 16 has an arc-shaped projecting piece 31 a that is elastically deformed inside the mounting portion 15. The projecting portion is configured such that a clearance against thermal expansion of the floor material 10 or the cover body 20 is secured between one side wall 15b of the mounting portion 15 and the side edge portion 20a of the cover body 20. In the flooring 10, the side edge portion 20 a of the cover body 20 fitted into the mounting portion 15 is pressed by the urging of the urging member 31 so that the cover body 20 is installed without rattling. Has become. Therefore, as shown in FIG. 8, when the flooring 10 or the cover body 20 thermally expands,
Due to the clearance provided between one side wall 15b of the mounting portion 15 and the side edge portion 20a of the cover body 20, the floor material 1
0 or a change in elongation of the cover body 20 can be absorbed.

In the flooring 10 of the above embodiment, as shown in FIG. 7, a projection 31c as a locking portion is provided on the outer surface of the projection 31a of the urging member 31, while the cover 20 A concave portion 21 corresponding to the convex portion 31c is formed on the outer surface of the side edge portion 20a, and is engaged with each other. Therefore, in this example, the side edge portion 20a of the cover body 20 fitted into the mounting portion 15 is securely locked, so that the cover body 20 is not accidentally removed upward.

In order to prevent the cover body 20 from slipping off, instead of the convex portion 31c provided on the outer surface of the protruding piece 31a, the outer surface is made to have a matte rough surface or rubber or the like having a large frictional resistance is adhered. May be implemented. Such a configuration may be similarly applied to the tongue piece 30 of the flooring material 10 shown in FIG. The tongue piece 30 and the pressing member 31 pressurize the cover 20 so that the side edge 20a of the cover 20 fitted into the mounting portion 15 can be prevented from falling off to some extent.
In particular, there is no inconvenience due to the absence of the locking portion such as the convex portion 31c.

When the opening of the storage pit 40 is covered with the cover body 20 as in the embodiment shown in FIG. 1, the floor material 10 of the embodiment shown in FIG.
In order to facilitate the fitting of Oa into the mounting portion 15, it is preferable that the projecting piece 31a of the urging member 31 be provided with a slope at the upper end edge thereof.

The flooring material 1 of the embodiment shown in FIGS.
In 0, the top plate 11 has a rectangular shape, but the form is not limited to this, and the top plate 11 may have a square or triangular shape. Also, the flooring 10 has
Although a passage 13 is formed between the legs 12 so that the wiring and piping material can be stored, such a passage 13 may not be provided. In short, it is only necessary that storage pits be formed at predetermined intervals.
Further, in the embodiment, the floor material 10 is made of synthetic resin, and the cover body 20 is made of metal. However, the floor material 10 may be made of metal, and the cover body 20 may be made of synthetic resin. The material is not particularly limited.

Further, in the above embodiment, the mounting portion 1
5 is formed on the periphery of the top plate 11, but may be formed only on the long side portion, only on the short side portion, or only on one side of the long side portion or the short side portion. Also, the placing section 1
The side wall 15a on the storage pit side of No. 5 is formed continuously along the mounting portion 15, but the side edge 20
As long as a is fitted and does not fall off from the inside of the mounting portion 15, it may be partially formed and implemented.
Similarly, the side edge portion 20a of the cover body 20 is not limited to being formed continuously, but may be formed partially.

The floor material 10 having such an obstacle is provided.
In the above, the groove width of the mounting portion 15 has a width for forming a clearance corresponding to the elongation when the floor material 10 or the cover body 20 thermally expands. However, this does not prevent the device from having a width in which a clearance corresponding to shrinkage upon thermal contraction is formed.

FIGS. 9 to 13 show several different examples of the obstacle constituted by the biasing body.
FIG. 9 shows an example of an obstruction caused by the leaf spring 32 as viewed from above. In this example, the leaf spring 32 is bent and housed in the recess 16, and a part thereof is
5 is provided so as to protrude into the mounting portion 15 from the opening facing the mounting member 5, and the side edge (not shown) of the cover body fitted into the mounting portion 15 is The pits can be urged toward the storage pits 40 at the pits, and can be retracted into the recesses 16 when the flooring 10 or the cover body thermally expands. The pins 33 provided on both sides of the opening are guide pins for guiding the elastic deformation of the leaf spring 32. The leaf spring 3
2 can be bent into a circular shape, and a part of the cover can be protruded into the mounting portion 15, so that the side edge of the cover fitted into the mounting portion 15 faces the storage pit 40. It can be configured to be biased.

FIGS. 10 and 11 show the side wall 1 of the mounting portion 15.
An example of an obstacle due to a structure in which a part of 5b is elastically deformed is shown as a plan view and a cross-sectional view. In this example, a space 17 is formed on the back side (floor material side) of the side wall 15b,
5b is formed to be deformable, and
The projection 35 is provided on the surface facing the inside 5. Side wall 15b
Is made of a synthetic resin or metal, so that a side edge (not shown) of the cover body fitted in the mounting portion 15 can be urged toward the storage pit 40 by the convex portion 35. In addition, when the floor material 10 or the cover body thermally expands, the floor material 10 or the cover body can be elastically deformed and retreat into the space 17. In addition, in order to facilitate the fitting of the side edge portion of the cover body, the upper portion of the convex portion 35 may be an inclined surface.

FIG. 12 is a sectional view showing an example of an urging member formed by the helical spring 36. In this example, one end of the helical spring 36 is provided with a recess 16 provided on the side of the mounting portion 15.
It is installed so that the other end protrudes into the mounting portion 15, and the other end of the winding spring 36 hangs a side edge portion (not shown) of the cover body fitted in the mounting portion 15. The end can be biased toward the storage pit 40 side, and can be retracted into the recess 16 when the floor material 10 or the cover body thermally expands.

FIG. 13 is a sectional view showing an example of an urging member made of the elastic foam 37. As shown in FIG. In this example, a part of the elastic foam 37 is provided in the recess 16 provided on the side of the mounting portion 15.
It is installed so that the other surface protrudes into the mounting portion 15, and a side edge (not shown) of the cover body fitted into the mounting portion 15 is attached to the elastic foam 37. The surface can be urged toward the storage pit 40 side, and can be retracted into the recess 16 when the flooring 10 or the cover body thermally expands. The elastic foam 37 is preferably made of urethane resin as a raw material. Further, the shape of the elastic foam 37 may be spherical. Note that, in order to facilitate the fitting of the side edge of the cover body, the upper part of the elastic foam 37 may be an inclined surface. In addition, an elastic body made of rubber may be used in place of the elastic foam 37.

In the embodiment shown in FIGS. 1 to 13 described above, the flooring material having the obstacle which ensures a clearance capable of coping with a change in elongation when the flooring material 10 or the cover body 20 thermally expands is provided. On the other hand, for a flooring material having an obstacle in which a clearance corresponding to shrinkage when the flooring material 10 or the cover body 20 shrinks is secured, the obstacleing part is By providing the side edge portion 20a on the opposite side with the side edge portion 20a interposed therebetween, it is possible to secure the clearance against thermal contraction. In addition, by providing obstacles on both sides of the side edge 20a of the cover body 20, clearances can be secured on both sides, and a floor material capable of coping with both thermal expansion and thermal contraction can be configured. it can.

As an example of the heat-shrinkable floor material, for example,
The thickness of one of the side walls 15a of the mounting portion 15 is increased to increase the thickness of the side wall 1.
By providing the recess 16 at an appropriate position of 5a and providing the tongue piece 30 (FIG. 2) or the urging member 31 (FIG. 6),
The leaf spring 32 (FIG. 9) and the helical spring 36 (FIG. 1) face the inside of the mounting portion 15 from one side wall 15a of the mounting portion 15.
2) By providing an urging body such as an elastic foam 37 (FIG. 13) or rubber, a space 34 is formed in the side wall 15a to form a part of the side wall 15a so as to be deformable, and Protrusion 35 is provided to protrude into part 15 (FIGS. 10 and 11).
Alternatively, it can be configured by forming a slit in the side wall 15a and bending a part of the side wall 15a toward the mounting portion 15 to be deformable.

As an example of a flooring material that can handle both thermal expansion and thermal contraction, for example, a tongue piece 30 shown in FIG. 2 is provided on the side walls 15a and 15b on both sides of the mounting portion 15, and FIG. The urging member 31 shown in FIG.
a and 15b can be configured. Similarly, a biasing body such as a leaf spring 32 (FIG. 9), a helical spring 36 (FIG. 12), an elastic foam 37 (FIG. 13), or rubber may be used. The side edge portion 20a of the cover body 20 is fitted into the mounting portion 15 so as to be sandwiched between urging members such as the tongue piece 30 which is an obstacle.

It should be noted that the obstacle is not limited to the one constituted by the urging member, and may be a pin which is broken and removed when the floor material 10 or the cover body 20 thermally expands or contracts. Alternatively, it may be constituted by a member that does not have elasticity and restoring property, such as a biasing member, and that simply deforms plastically. In this case, when a pin or a member, which is an obstacle, is provided on the mounting portion, it is preferable that the cover or the member be provided at a position where the cover does not rattle during construction.

The flooring material 10 of the present invention is not limited to those made of synthetic resin, but may be made of metal such as aluminum or steel plate, and the material is not limited. Further, the cover body 20 is not limited to a cover made of metal, but may be made of a synthetic resin reinforced by ribs or the like. Further, the floor material to which the present invention is applied is not limited to the above-described embodiment, and may be applied to, for example, a floor material 10 in the form of a pillar as shown in FIG. The floor material 10 is a support bolt 5 erected on the base floor.
1 is attached to the upper end of the frame member 52.
5 is provided so that the side edge portion 20a of the cover body 20 is fitted. The mounting portion 15 is provided with a recess 16 at an appropriate place, and a tongue piece 30 similar to that shown in FIG. 2 is provided in the recess 16 as an obstacle. A passage 53 is provided at the center of the frame member 52 of the above-described embodiment, and wiring and piping materials can be stored in the passage 53 separately from the storage pit 40. Such a passage 53 may not be provided.

Further, the form of the mounting portion and the cover body in the present invention is not limited to the above-mentioned embodiment, and for example, as shown in FIG. 15, the mounting portion 15 is formed in a flat shape on the flat mounting portion 15. The cover body 20 may be placed.

Next, various embodiments of the floor structure will be described. 16 to 19 show the respective embodiments of the floor structure. The floor structure shown in FIG. 16 includes a floor material 10 laid on a base floor F, and a cover body 20 that covers an upper opening of a storage pit 40 formed between the floor materials 10. A side edge portion 20a of a cover body 20 bent downward is fitted into a mounting portion 19 provided on the peripheral edge. An arc-shaped protruding piece 3 that is elastically deformed as an obstacle formed by an urging member is provided at an appropriate position along the mounting portion 19.
A biasing member 31 (same as that shown in FIG. 6) made of a synthetic resin having a side portion 1a is attached, and a side edge of the cover body 20 fitted into the mounting portion 19 by the biasing member 31. The portion 20a is biased toward the storage pit 40.

In this floor structure, a clearance is secured between the side wall 19b of the mounting portion 19 and the side edge 20a of the cover body 20 by the urging member 31, and the urging member 31 is attached. By the force, the side edge 20a of the cover body 20 fitted into the mounting portion 19 is pressed, and the cover body 20 is installed without rattling. In this floor structure, the side edge 20a of the cover body 20 is pressed against the side wall 19a by the urging of the urging member 31, and the cover body 20 is pressed.
The floor material 10 and the cover body 20 are installed in a state in which a clearance is formed outside the side edge 20a of the floor material 1.
0 or a change in elongation when the cover body 20 thermally expands can be absorbed.

Incidentally, the side edge portion 2 of the cover body 20 as described above.
In a floor structure provided with an urging member that urges Oa toward the storage pit 40, the groove width of the mounting portion 19 corresponds to the expansion when the floor material 10 or the cover member 20 thermally expands. Any width may be used as long as it has a width in which the clearance is formed. However, it does not prevent the floor material 10 or the cover body 20 from having a width in which a clearance corresponding to shrinkage when thermally contracted is formed.

The floor structure shown in FIG. 17 includes a floor material 10 laid on the base floor F, and a cover body 20 covering the upper opening of the storage pit 40 formed between the floor materials 10.
A mounting portion 19 is provided on the peripheral edge of the flooring 10, and the side edge portion 2 of the cover body 20 formed to be bent downward in the mounting portion 19.
0a is fitted. In this example, an elastic foam 37, which is an obstacle that fills the groove width of the mounting portion 19, is adhered to the outer surface of the side edge portion 20 a of the cover body 20. 17 is urged toward the storage pit 40, and the cover body 20 does not rattle as in the floor structure shown in FIG. The clearance formed between the side wall of the portion 19 and the side edge 20a of the cover body 20 can cope with a change in elongation when the floor material 10 or the cover body 20 thermally expands.

The floor structure shown in FIG. 18 includes a floor material 10 laid on the base floor F, and a cover body 20 covering the upper opening of the storage pit 40 formed between the floor materials 10.
A mounting portion 19 is provided only on the peripheral edge of one flooring 10, and a side edge 20 a of a cover body 20 bent downward is fitted into the mounting portion 19. Then, the mounting section 19
A biasing member 3 made of a synthetic resin provided with an elastically deformable arc-shaped protruding piece 31a, which is an obstacle, is provided at an appropriate position along the side.
1 is attached, and the biasing member 31 biases the side edge 20a of the cover body 20 which is loosely fitted into the mounting portion 19 toward the storage pit.

The floor structure shown in FIG. 19 includes a floor member 10 laid on the base floor F, and a cover body 20 covering the upper opening of the storage pit 40 formed between the floor members 10.
A mounting portion 19 is provided on the peripheral edge of the flooring 10, and the side edge portion 2 of the cover body 20 formed to be bent downward in the mounting portion 19.
0a is fitted. In this example, an elastic foam 37 is adhered to the inside of the side edge 20 a of the cover 20, and the side edge 20 a of the cover 20 fitted into the mounting portion 19 by the elastic foam 37 is stored. It is biased to the pit 40 side. That is, the elastic foam 37
Presses the side wall 19a of the mounting portion 19 formed on the storage pit side from the outside, so that the side edge 20 of the cover body 20 is pressed.
a to the side wall 19 a of the mounting portion 19, and as a result, the side edge 20 a of the cover 20 is moved to the storage pit 4.
It is urged to the zero side.

The floor structure shown in FIG. 16 to FIG. 19 has an obstacle that has a clearance enough to cope with a change in elongation when the floor material 10 or the cover body 20 thermally expands. On the contrary, in the case of a floor structure having an obstacle where a clearance corresponding to shrinkage when the floor material 10 or the cover body 20 is thermally contracted is secured, the obstacle is covered. Side edge 20 of body 20
It can be configured by positioning a on the opposite side with a clearance therebetween to ensure clearance against thermal contraction.
In addition, it is possible to configure a floor structure capable of coping with both thermal expansion and thermal contraction by locating obstacles on both sides of the side edge portion 20a of the cover body 20 and securing clearances on both sides. it can.

In these floor structures, the obstacles are:
It may be provided on the flooring material, may be provided on the cover body, or may be interposed between the flooring material and the cover body. The obstacle is not limited to the one configured by the urging member, but may be the flooring 10 or the cover 2.
0 may be a pin that is broken and removed when thermally expanded or contracted, or is constituted by a member that does not have elasticity and resilience, such as an urging member, and that simply deforms plastically. Is also good.

[0050]

As described above, according to the present invention,
Equipped with a structure that responds to thermal expansion or contraction of the floor material or the cover body, eliminating problems such as destruction of the engagement part between the floor material and the cover body, and floating of the floor material due to thermal expansion or thermal contraction It is possible to provide a floor material and a floor structure for wiring and piping that can be easily constructed and can cope with thermal expansion or thermal contraction.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a flooring material according to the present invention.

FIG. 2 is a perspective view showing a main part of the flooring material shown in FIG.

FIG. 3 is a sectional view of a main part showing a relationship between the floor material and the cover body in the floor material shown in FIG. 1;

4 is a cross-sectional view of a principal part showing a relationship between a floor material and a cover body of the floor material shown in FIG. 1;

FIG. 5 is a perspective view showing another embodiment of the flooring according to the present invention.

FIG. 6 is a perspective view showing a main part of the flooring material shown in FIG.

7 is a cross-sectional view of a main part showing a relationship between the floor material and a cover body in the floor material shown in FIG. 5;

8 is a cross-sectional view of a main part showing the relationship between the floor material and the cover body for the floor material shown in FIG.

FIG. 9 is a plan view of a main part of a floor material showing an example in which a biasing body is different.

FIG. 10 is a plan view of a main part of a floor material showing another example in which a biasing body is different.

FIG. 11 is a sectional view taken along line AA shown in FIG.

FIG. 12 is a cross-sectional view of a main part of a floor material showing still another example in which an urging body is different.

FIG. 13 is a cross-sectional view of a main part of a floor material showing a different urging body or yet another example.

FIG. 14 is a cross-sectional view of a principal part showing another embodiment of the flooring material according to the present invention.

FIG. 15 is a cross-sectional view of a main part showing a different example of a mounting portion of a floor material and a cover body.

FIG. 16 is a partial sectional view showing one embodiment of a floor structure according to the present invention.

FIG. 17 is a partial cross-sectional view showing another embodiment of the floor structure according to the present invention.

FIG. 18 is a partial sectional view showing still another embodiment of the floor structure according to the present invention.

FIG. 19 is a partial sectional view showing still another embodiment of the floor structure according to the present invention.

FIG. 20 is a sectional view showing a conventional example of a floor structure.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 floor material 15 mounting portion 16 recess 19 mounting portion 20 cover body 30 tongue piece 31 urging member 32 leaf spring 35 convex portion 36 helical spring 37 elastic foam 40 storage pit

Claims (6)

(57) [Claims] 1. A flooring material for forming a storage pit for storing wiring and piping materials, comprising a mounting portion on which a cover body covering the storage pit is mounted, wherein the mounting portion has A flooring material for wiring and piping, comprising a clearance for thermal expansion or thermal contraction and an obstacle that does not hinder thermal expansion or thermal contraction. 2. The wiring / wiring according to claim 1, wherein the obstacle is constituted by an urging member having resiliency.
Flooring for plumbing. 3. The flooring for wiring and piping according to claim 2, wherein the biasing member is provided so as not to hinder thermal expansion or thermal contraction by retreating into a recess communicating with the clearance. 4. A cover member that covers a storage pit in which wiring and piping materials are stored, and a floor member that has a mounting portion on which the cover member is mounted and is disposed at intervals of forming the storage pit. A floor structure provided with a clearance for thermal expansion or thermal contraction in the mounting portion and an obstacle that does not hinder thermal expansion or thermal contraction. 5. The floor structure according to claim 4, wherein the obstacle is constituted by an urging member having resilience. 6. The floor structure according to claim 5, wherein the biasing member is provided so as not to hinder thermal expansion or thermal contraction by retreating into a recess communicating with the clearance.
Stuff.