JP2020122325A - Floor face constructing tool, and floor face constructing method - Google Patents

Abstract

To provide a floor face constructing tool capable of easily and properly carrying out a work of leveling cement paste on a surface of concrete before solidification and having excellent versatility.SOLUTION: A floor face constructing tool 10 comprises: a grip member 11 which a worker can hold with a hand; a support member 12 attached to a tip portion 11a of the grip member 11 in a state perpendicular to the grip member 11; and a rectangular plate-shaped leveling member 13 detachably attached to the support member 12. The grip member 11 comprises: a fixed portion 11t; and an expandable/retractable portion 11s slidably mounted to the fixed portion 11t. The support member 12 is formed of a long elastic material with a C-shaped cross section, and has a groove 12t capable of holding one long side portion of the leveling member 13 inside. The leveling member 13 is formed of an elastically deformable foaming synthetic resin material, and has elasticity and flexibility.SELECTED DRAWING: Figure 1

Description

INDUSTRIAL APPLICABILITY The present invention is used for civil engineering construction work, civil engineering construction work, etc., for leveling the cement paste that appears on the surface of concrete before being solidified after it is placed on the floor of a building and the surface is leveled. Regarding floor applied tools.

In the work of leveling the unevenness of the concrete surface before being solidified by being cast on the floor of an object, a leveling tool called "dragonfly" has been conventionally used. A "dragonfly" is a T-shaped device in which a handle is attached to the center of a rectangular plate material, and the operator grips the handle by hand, and the long side of the plate material is in contact with the concrete surface. The leveling work is performed by moving with.

On the other hand, with respect to such a leveling tool, various leveling tools have been proposed, but as one related to the present invention, for example, "a leveling tool for pouring concrete" described in Patent Document 1 is disclosed. There is. This "pourable concrete leveling tool" is a long rectangular thin plate with a large number of small holes penetrating the plate surface on the entire surface, and a board part fixed to the center of one of the long sides. In addition, it is configured by a T-shaped long rod-shaped handle or the like.

The "leveling tool for pouring concrete" described in Patent Document 1 can perform the leveling work similar to the conventional "dragonfly", but in particular, a large number of small holes are provided in the substrate portion. Therefore, there is a feature that tapping work can be performed efficiently. The tapping work is a work in which the concrete surface that has been placed is hit to sink the aggregate contained in the concrete to float a soft cement paste called Noro on the surface side.

JP, 2017-106218, A

As described above, in the "equipment for leveling concrete" described in Patent Document 1, since a large number of small holes are provided in the base plate portion that contacts the concrete surface, tapping work can be performed efficiently. However, it is not suitable for leveling the cement paste that appears on the concrete surface before solidification after it is cast on the floor of the building and the surface is leveled flat.

Therefore, the problem to be solved by the present invention is that the work of leveling the cement paste that appears on the surface of the concrete before solidification after being cast on the floor of the building and leveled to a flat surface is easy and appropriate. It is intended to provide a floor surface application tool that can be performed at any time and is also excellent in versatility, and a floor surface construction method using the same.

The floor surface application tool according to the present invention includes a handle member that can be gripped by an operator's hand, a support member attached to a tip end portion of the handle member in a state intersecting with the handle member, and detachable from the support member. A rectangular plate-shaped leveling member that is attached so that
The material of the leveling member is a porous synthetic resin material or an expanded synthetic resin material having an elastic deformation function.

In the floor surface application tool, the leveling member can be formed, for example, under the trade name “Expantay” of “Taisei Co., Ltd.”.

In the floor surface application tool, the support member may have a groove capable of holding one long side of the leveling member.

In the floor surface application tool, the handle member can be expanded and contracted.

In the floor surface application tool, the support member can be detachable from the handle member.

Next, the floor construction method according to the present invention,
A process of leveling the surface of concrete cast on the floor of the building into a flat surface,
A step of sliding any of the above-mentioned floor surface applying tools along the surface of the concrete before the concrete is solidified.

According to the present invention, it is cast on the floor portion of the building, and after the surface is leveled flat, the operation of leveling the cement paste that appears on the surface of the concrete before solidification can be easily and accurately performed, and is versatile. It is also possible to provide an excellent floor tool and a floor construction method using the same.

It is a perspective view showing a floor surface application tool which is an embodiment of the present invention. FIG. 2 is a partially omitted side view seen from an arrow A direction in FIG. 1. It is a partially omitted perspective view which shows the attachment/detachment procedure of the leveling member with respect to a support member. It is a perspective view which shows the floor surface application tool which is other embodiment of this invention. FIG. 5 is a partially omitted perspective view seen from the direction of arrow C in FIG. 4.

Hereinafter, the floor surface application tool 10 which is an embodiment of the present invention will be described based on FIGS. 1 to 3. As shown in FIG. 1, a floor tool 10 includes a handle member 11 that can be gripped by an operator with a hand, and a support attached to a tip portion 11 a of the handle member 11 in a state intersecting the handle member 11 at a right angle. A member 12 and a rectangular plate-shaped leveling member 13 detachably attached to the support member 12 are provided.

Since the sizes of the handle member 11, the support member 12, and the leveling member 13 that constitute the floor surface application tool 10 are not limited, they can be arbitrarily set according to the work content, the physique of the worker, the physical strength, etc. The length of the member 12 and the leveling member 13 in the longitudinal direction (the length in the direction of the arrow L orthogonal to the handle member 11) is preferably about 1.0 m to 4.0 m.

The handle member 11 includes a fixed portion 11t and a telescopic portion 11s slidably attached to the fixed portion 11t. The length of the handle member 11 can be adjusted by sliding the stretchable portion 11s. Further, the length of the handle member 11 as a whole can be shortened by sliding the stretchable portion 11s until it comes close to the support member 12 side, which is convenient for storage and transportation. Further, since the stretchable portion 11s can be detached from the fixed portion 11t, it can be replaced with another stretchable portion 11s having a different length.

An attachment 16 having an L-shaped cross section is fixed to the tip portion 11a of the handle member 11, and the attachment 16 is attached to the support member 12 with a plurality of screws n. Fins 17, 17 are attached between both side surface portions of the handle member 11 in the vicinity of the tip 11a and the attachment tool 16, respectively.

Further, braces 14 and 14 are attached between both side surfaces of the fixed portion 11t of the handle member 11 and the support member 12, respectively. Fixtures 18, 18 having an L-shaped cross section are fixed to the tip portions 14a, 14a of the brace 14, 14, respectively, and these fixtures 18, 18 are attached to the support member 12 by a plurality of screws n, respectively. There is. The handle member 11 and the support member 12 can be disassembled by loosening the plurality of screws n described above.

As shown in FIG. 2, the support member 12 is formed of a long elastic material made of aluminum having a C-shaped cross section, and one long side portion 13a of the leveling member 13 can be held inside thereof. It has a large groove 12t. The leveling member 13 is formed of "TJ type 25" under the trade name "Expantay" of "Taisei Co., Ltd." which is one of the elastically deformable foam synthetic resin materials. The leveling member 13 has a sponge-like appearance and is flexible and stretchable.

"Expandai" has the properties and functions that combine the advantages of polyethylene foam, butyl rubber, synthetic rubber (EPDM), stainless steel, glass fiber, and vinyl chloride. Since the material of the leveling member 13 is not limited, it may be formed of other synthetic resin material, for example, porous synthetic resin material.

Since the width 12w of the opening 12a of the groove 12t of the support member 12 when the leveling member 13 is not sandwiched is slightly smaller than the plate thickness 13t of the leveling member 13, the long side portion 13a of the support member 12 is formed. When stored in the groove 12t, both surfaces of the leveling member 13 are pressed and held by the edge portions 12b and 12b of the groove 12t by the elastic restoring force of the support member 12.

A spacer 15 having a U-shaped cross section is attached to a portion of the leveling member 13 housed in the groove 12t near the long side portion 13a. A plurality of ribs 15a are formed on the outer side surface of the spacer 15 along the longitudinal direction of the spacer 15, and a plurality of ribs 15b are formed on the inner side surface of the spacer 15 along the longitudinal direction of the spacer 15. ..

The plurality of ribs 15a of the spacer 15 contact the inner side surface 12c of the support member 12, respectively, and the leveling member 13 moves in the groove 12t or the part of the leveling member 13 near the long side portion 13a bends. To prevent The plurality of ridges 15b of the spacer 15 press both surfaces of the leveling member 13 to prevent the spacer 15 from coming off the leveling member 13.

As shown in FIG. 3, when an external force is applied to the leveling member 13 and the spacer 15 in the direction of the arrow B (longitudinal direction of the groove 12t of the support member 12), the leveling member 13 and the spacer 15 have the length of the groove 12t. The leveling member 13 is attachable to and detachable from the support member 12 because it can be slid integrally along the direction.

The usage of the floor surface application tool 10 of the present embodiment is not limited, but it is suitable for, for example, a work for leveling the cement paste on the concrete surface before solidification.

Specifically, the long side portion 13b of the leveling member 13 is brought into contact with the surface of the concrete before solidification in which the cement paste appears on the surface after being cast on the floor of the building and the surface is leveled. Then, when the operator grips the handle member 11 by hand and slides the entire floor surface application tool 10 along the surface of the concrete, the cement paste existing on the surface of the concrete can be leveled. Further, by sliding the floor surface application tool 10 along the surface of the concrete, floating water (excess water) appearing on the surface of the concrete can be removed.

Since the leveling member 13 has appropriate rigidity, flexibility, and elasticity, the leveling operation of the cement paste appearing on the concrete surface before solidification can be performed easily and accurately. Further, since the leveling member 13 is attachable to and detachable from the support member 12, various types of work can be handled by attaching the leveling member 13 made of a material according to the work content, and the versatility is excellent.

Next, a floor surface application tool 20 which is another embodiment of the present invention will be described based on FIGS. 4 and 5. As shown in FIG. 4, the floor tool 20 is a support member attached to a handle member 21 that can be gripped by an operator with a hand, and a tip end portion 21 a of the handle member 21 that intersects the handle member 21 at a right angle. A member 22 and a rectangular plate-shaped leveling member 23 detachably attached to the support member 22 are provided.

Since the sizes of the handle member 21, the support member 22, and the leveling member 23 which form the floor surface application tool 20 are not limited, they can be arbitrarily set according to the work content, the physique of the worker, the physical strength, etc. It is preferable that the size (length in the direction of the arrow L orthogonal to the handle member 21) of the longitudinal member 23 in the longitudinal direction be about 1.0 m to 4.0 m.

A fitting 26 having an L-shaped cross section is fixed to the tip 21a of the handle member 21. By attaching the fitting 26 to the support member 22 with a screw n, the handle member 21 and the support member 22 can be attached and detached. Are linked to.

As shown in FIG. 5, a rectangular opening 22b is formed in the support member 22 by deleting a part of one surface (a region excluding both ends 22a) of the aluminum-made square tubular member. One long side 23c side of the leveling member 23 is detachably inserted from the opening 22b toward the inside of the support member 22.

The leveling member 23 is formed of "TJ type 25" under the trade name "Expantay" of "Taisei Co., Ltd.", which is one of the foaming synthetic resin materials which is elastically deformable. The leveling member 23 has a sponge-like appearance and is flexible and stretchable. As described above, "Expandai" has the property and function of combining the advantages of polyethylene foam, butyl rubber, synthetic rubber (EPDM), stainless steel, glass fiber, and vinyl chloride. Since the material of the leveling member 23 is not limited, it may be formed of other synthetic resin material, for example, porous synthetic resin material.

Since the width 22w of the opening 22b (the size in the direction crossing the support member 22) is less than the plate thickness 23t of the leveling member 23, the length of the leveling member 23 inserted into the support member 22 through the opening 22b. The side portion 23c side is locked by the opening portion 22b by its elastic restoring force, and does not come off during the work.

In FIG. 5, the thickness 23t of the leveling member 32 is about 15 mm to 30 mm, and the width (size in the arrow W direction) of the leveling member 32 is preferably about 150 mm to 250 mm, but it is not limited to this. Absent.

Although the usage of the floor surface application tool 20 of the present embodiment is not limited, it is suitable for, for example, the operation of leveling the cement paste that appears on the surface of the concrete before solidification.

Specifically, the long side portion 23d of the leveling member 23 is brought into contact with the surface of the concrete before solidification, which has been cast on the floor of the building and the surface has been leveled, and then cement paste has appeared on the surface. Then, when the operator grips the handle member 21 by hand and slides the entire floor surface application tool 20 along the surface of the concrete, the cement paste existing on the surface of the concrete can be leveled.

On the other hand, even when floating water (excess water) appears on the surface of the concrete before solidification, the floor surface application tool 20 slides along the surface of the concrete with the long side portion 23d of the leveling member 23 in contact. By doing so, floating water (excess water) on the surface of the concrete can be removed.

The floor surface application tools 10 and 20 described with reference to FIGS. 1 to 5 are examples of the floor surface application tool according to the present invention, and the floor surface application tool according to the present invention is the floor surface application tool described above. It is not limited to the tools 10 and 20.

The floor surface application tool of the present invention is used as a tool to be used for the work of leveling the cement paste on the concrete surface before solidification after being cast on the floor part of the building or removing floating water (excess water). It can be widely used in industrial fields such as civil engineering construction and civil engineering and construction.

10, 20 Floor surface application tool 11, 21 Handle member 11a, 21a Tip part 11t Fixed part 11s Expansion/contraction part 12, 22 Support member 12a, 22b Opening part 12b Edge part 12c Inner side surface 12t Groove 12w, 22w Width 13 Leveling member 13a , 13b, 23c, 23d Long side part 13t, 23t Plate thickness 14 Brace 15 Spacer 15a Rib 15b Projection 16,18 Fixture 17 Fin 22a End part n Screw

Claims (5)

A handle member that can be gripped by an operator's hand, a support member attached to the tip of the handle member in a state intersecting with the handle member, and a rectangular plate-shaped leveling member attached to the support member. ,,
A floor application tool in which the material of the leveling member is a porous synthetic resin material or an expanded synthetic resin material having an elastic deformation function. The floor application tool according to claim 1, wherein the support member has a groove capable of holding one long side portion of the leveling member. The floor surface application tool according to claim 1 or 2, wherein the handle member is expandable. The floor surface application tool according to any one of claims 1 to 3, wherein the support member is attachable to and detachable from the handle member. A process of leveling the surface of concrete cast on the floor of the building into a flat surface,
A floor surface construction method comprising a step of sliding the floor surface application tool according to any one of claims 1 to 4 along the surface of the concrete before the concrete is solidified.

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