JP7228069B2 - floor sleeve - Google Patents

Description

TECHNICAL FIELD The present invention relates to a floor sleeve which is fitted and fixed in a sleeve arrangement hole of a concrete plate member to be arranged on the lower surface of a floor constructed in a building, and is arranged to penetrate the floor constructed by pouring concrete.

Conventionally, in the case of plumbing equipment installed in building structures such as buildings and condominiums, a temporary frame for building a floor is installed for a reinforcing steel structure, reinforcing bars are arranged, and the temporary frame is placed at a predetermined position. After fixing the required number of floor sleeves, concrete is placed in this state, and after the concrete has hardened, pipes are passed through the floor sleeves, and pipe fixing parts using angle materials are attached to the floor openings of the floor sleeves. It is installed by on-site work to support and fix the piping.

As such a floor sleeve, as shown in FIG. 5, there has been proposed a floor sleeve that enables simple and easy on-site work of fitting and fixing to a concrete plate member without requiring an electric tool. .

When installing the floor sleeve 100 when constructing the floor of a building, first, as shown in FIG. The portion where the fitting blade member 118 is provided is pushed in until the positioning member 116 hits the upper surface of the concrete plate member 124 and stops, and is supported and fixed. Subsequently, as shown in FIG. 5B, concrete 128 is poured onto the concrete plate member 124 to form the floor of the building.

Utility Model Registration No. 3201881 JP-A-07-317318

However, in such a conventional floor sleeve, as shown in FIG. When forming the floor of a building, a gap remains between the sleeve main body 112 and the sleeve placement hole 126, and the concrete poured through this gap becomes slag (concrete dissolved in water) and flows downward. There is a problem of it leaking out and staining the floor below.

SUMMARY OF THE INVENTION An object of the present invention is to provide a floor sleeve that can reliably prevent slag from leaking out from a gap in a sleeve arrangement hole in which a sleeve body is supported and fixed even when concrete is placed.

(floor sleeve)
The present invention is a floor which is fitted and fixed in a sleeve arrangement hole formed in a concrete plate member arranged at the lower surface of a floor to be constructed in a building, and which penetrates the floor formed by pouring concrete on the upper side of the concrete plate member. a sleeve,
a cylindrical sleeve body that has a length that is the sum of the thickness of the floor and the thickness of the concrete plate member, is fitted into the sleeve arrangement hole, and allows the pipe to pass through;
It has an inner diameter that is in close contact with the outer periphery of the sleeve body and an outer diameter that sufficiently exceeds the hole diameter of the sleeve arrangement hole, is fixed at a predetermined outer peripheral position of the sleeve body, and is a fitting position in the thickness direction of the concrete plate member of the sleeve body. and a ring-shaped collar member that closes the gap between the outer circumference of the sleeve body and the sleeve arrangement hole from the upper side of the concrete plate member ;
a fitting blade member provided at a plurality of locations on the outer periphery of the sleeve body under the flange member, and supporting and fixing the sleeve body, which is fitted in the sleeve arrangement hole and positioned by the flange member, in a centered state ;
characterized by comprising

(Mating blade member)
The fitting blade member of the floor sleeve is a leaf spring member having elasticity, and the lower side of the leaf spring member is fixed to the outer periphery of the lower end of the sleeve main body, which is the lower side of the flange member, and the upper portion of the leaf spring member The side of the sleeve is bent in a chevron shape so that the tip is in pressure contact with the outer periphery of the sleeve body.

(basic effect)
According to the floor sleeve of the present invention, when the sleeve main body is fitted into the sleeve placement hole of the concrete plate member, the flange member closes the ring-shaped gap formed between the sleeve main body and the sleeve placement hole. Even if concrete is placed, the flow of concrete into the gap with the sleeve arrangement hole is prevented, and the dirt caused by the slag leaking out from the gap with the sleeve arrangement hole is prevented. To make it possible to improve the finish condition of a floor structure and improve work quality.

Further, when the floor sleeve is fitted into the sleeve placement hole of the concrete plate member, the flange member provided on the outer periphery of the sleeve body comes into contact with the upper surface forming the sleeve placement hole, and the fitting position is uniquely determined. To easily and surely fit and fix a floor sleeve to a concrete plate member by fitting until a flange member hits without judging whether or not to fit by pressing to a certain extent.

(Effect of fitting blade member)
The fitting blade member is a spring plate member having spring properties, and the mountain-shaped portion of the fitting blade member is pushed into the ring-shaped gap formed between the sleeve body and the sleeve arrangement hole. Sufficient fitting strength is obtained by the reaction force due to the springiness of the crushed chevron portion, which enables reliable support and fixation.

FIG. 2 is an illustration showing an embodiment of a floor sleeve according to the invention; FIG. 5 is an explanatory view showing a part of the floor sleeve with the flange member and the mating blade member. FIG. 4 is an explanatory view showing a state in which a floor sleeve is fitted and fixed to a concrete plate member and a state in which concrete is placed; FIG. 5 is an explanatory view showing a state of fitting and fixing of the floor sleeve by the flange member and the fitting blade member into the sleeve arrangement hole of the concrete plate member; FIG. 3 is an explanatory view showing construction of a floor by fixing a conventional floor sleeve to a concrete plate member and placing concrete.

An embodiment of a floor sleeve according to the invention will be described in detail below with reference to the drawings. In addition, the present invention is not limited by the following embodiments.

[Basic concept of the embodiment]
First, the basic concept of the embodiment will be explained. Embodiments generally relate to floor sleeves used in building construction. Here, the term "floor sleeve" refers to a floor that is fixed by being fitted into a sleeve arrangement hole formed in a concrete plate member placed on the lower surface of the floor for constructing a building, and is formed by placing concrete on the upper side of the concrete plate member. It is a building material through which piping is arranged.

A “building” is a building structure in which floor sleeves are used, and its type and structure are arbitrary. It is a concept that includes

A "concrete plate member" is a member that constitutes the floor structure of a building. It is known as a stress concrete board), and the concept includes known FR boards, Omnia boards, KH boards, etc. as its types.

The floor sleeve of this embodiment is composed of a sleeve body, a collar member and a fitting blade member. Here, the “sleeve body” is a cylindrical member manufactured by sheet metal processing through which pipes are inserted. It is.

Further, the "flange member" is a ring-shaped plate member provided at a predetermined outer peripheral position of the sleeve body, and includes concepts such as a flange member, a ring member, and an annular member. It has the function of determining the fitting position when fitting into the hole and the function of closing the gap between the sleeve body and the sleeve arrangement hole.

In addition, the "fitting blade member" is provided at a plurality of locations on the outer periphery of the sleeve body, which is the lower side of the collar member, and is fitted into the sleeve arrangement hole and supported by the collar member in a centered state. It is fixed. Although the structure and shape of the fitting blade member are arbitrary, for example, it is a plate spring member having spring properties, and the lower side of the plate spring member is fixed to the outer periphery of the lower end of the sleeve main body, which is the lower side of the flange member. , the upper portion of the leaf spring member is bent in a mountain shape, and the tip thereof is press-contacted with the outer periphery of the sleeve body. Specific embodiments will be described below.

[Specific contents of the embodiment]
Embodiments of the floor sleeve will now be described in more detail. The contents will be described separately as follows.
a. Construction of the floor sleeve b. sleeve body c. collar member d. mating blade member e. Installation and fixation of floor sleeves f. Modification of the present invention

[a. Configuration of floor sleeve]
1A and 1B are explanatory views showing an embodiment of a floor sleeve according to the present invention, FIG. 1A showing a plan view, FIG. 1B showing a front view, and FIG. 1C showing a bottom view. FIG. 2 also shows an extracted portion of the floor sleeve provided with the collar member and mating blade member.

The floor sleeve 10 of this embodiment will be described in more detail. As shown in FIG. 1, the floor sleeve 10 is comprised of a sleeve body 12, a collar member 16 and a mating blade member 18. As shown in FIG.

[b. sleeve body]
The sleeve body 12 will be described in more detail. The sleeve body 12 is a cylindrical member through which the pipe is inserted, and is a metallic cylindrical body formed by sheet metal working. Regarding the size of the sleeve body 12, the diameter of the sleeve is determined by the pipe to be inserted. The sleeve length is arbitrarily determined depending on the thickness.

[c. Collar member]
The collar member 16 provided on the sleeve body 12 will be described in more detail. As shown in FIG. 1, the collar member 16 is provided at a predetermined position on the lower outer periphery of the sleeve body 12 . For example, the collar member 16 is fixed to the outer circumference of the sleeve body 12 by welding L-shaped fixing members 17 arranged at three locations.

Here, as shown in FIG. 2, the height H from the lower end surface of the sleeve body 12 to the lower surface of the flange member 16 corresponds to the thickness of the concrete plate member into which the floor sleeve 10 is fitted. In addition, the outer diameter of the flange member 16 is set to sufficiently exceed the diameter of the sleeve arrangement hole formed in the concrete plate member. For example, if the outer diameter of the sleeve body 12 is, for example, 250φ, the hole diameter of the sleeve placement hole is set to, for example, about 256φ, which is several millimeters larger. The height H from the lower end surface of the sleeve body 12 to the flange member 16 corresponds to the depth of a sleeve placement hole provided in the concrete plate member, which will be described later, that is, the thickness of the concrete plate member. to some extent.

[d. Fitting blade member]
The mating blade member 18 provided on the sleeve body 16 will now be described in greater detail. As shown in FIG. 1 , the fitting blade members 18 are provided at three locations on the outer periphery of the lower end portion of the sleeve body 12 on the lower side of the collar member 16 .

The fitting blade member 18 is a spring plate member having spring properties, for example, a strip-shaped plate spring member having spring properties, for example, made of stainless steel, and as shown in FIG. ° to 150°.

[e. Mounting and fixing of the floor sleeve]
FIG. 3 is an explanatory view showing a state in which the floor sleeve is fitted and fixed to the concrete plate member and a state in which concrete is poured, and FIG. It is an explanatory view showing a state from the bottom.

When installing the floor sleeve 10 of the present invention when constructing the floor of a building, as shown in FIG. Since it is installed by temporary assembly, the portion of the sleeve body 12 of the floor sleeve 10 where the lower fitting blade member 18 and the flange member 16 are provided is pushed into the sleeve arrangement hole 26 of the concrete plate member 24 from above. , this pushing is continued until the collar member 16 fixed to the outside of the sleeve body 12 comes into contact with the upper surface of the concrete plate member 24 and stops.

Here, as shown in FIG. 2, the height H from the lower end surface of the sleeve body 12 to the lower surface of the flange member 16 is the same as the thickness of the concrete plate member 24, so that the flange member 16 is a concrete plate. When pushed until it hits the upper surface of the member 24, the lower end of the sleeve can be fitted flush with the lower surface of the sleeve placement hole 26 in the concrete-located member 24. As shown in FIG.

A ring-shaped gap 28 having an interval of, for example, about 3 mm is formed between the sleeve arrangement hole 26 and the fitted sleeve main body 12 . By pushing in, the upper side of the gap 28 is closed by the flange member 16 .

Also, as shown in FIG. 3A, when the floor sleeve 12 is pushed into the sleeve placement hole 26 and the fitting blade member 18 on the lower side of the sleeve body 12 is pushed, the sleeve placement hole 26 and the sleeve placement hole 26 are formed as shown in FIG. The chevron-shaped portion of the fitting blade member 18 fits into the gap between the sleeve body 12 and the sleeve body 12 while being crushed. The fitting blade member 18 is strongly pressed against the sleeve arrangement hole 26 at three points, so that it can be firmly supported and fixed in a centered state (aligned state).

Here, the width of the ring-shaped gap 28 formed between the sleeve arrangement hole 26 into which the fitting blade member 18 is fitted and the sleeve main body 12 is, for example, about 3 mm. has a height of, for example, 5 mm, and is crushed to 3 mm by being pushed in, a strong reaction force is generated, and the sleeve is strongly pressed against the inner wall of the sleeve arrangement hole 26, so that it can be firmly supported and fixed. .

Subsequently, as shown in FIG. 3B, the cover member 14 is attached to the upper opening of the sleeve body 12 to close it, and concrete 30 is poured onto the concrete plate member 24 to form the floor of the building. At this time, the ring-shaped gap 28 between the sleeve arrangement hole 26 and the sleeve main body 12 is blocked by the abutment of the flange member 16, and the placed concrete 30 passes through the gap 28 and flows downward. is reliably prevented from leaking out as Subsequently, after the concrete 30 has hardened, the lid member 14 is removed, and the piping is passed through the sleeve body 12 and fixedly supported.

[f. Modification of the present invention]
A variant of the floor sleeve according to the invention will now be described in more detail. The floor sleeve of the present invention includes the following modifications in addition to the above embodiments.

(Brim member)
In the present embodiment, the flange member provided on the sleeve body has a circular ring shape.

(Mating blade member)
Further, in the above-described embodiment, the fitting blade members 18 are provided at three locations on the outer circumference of the lower end of the sleeve body 12, but are not limited to this, and may be provided at a plurality of locations exceeding three locations.

(others)
Moreover, the present invention is not limited to the above-described embodiments, includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited by the numerical values shown in the above-described embodiments.

10: Floor sleeve 12: Sleeve body 14: Lid member 16: Collar member 18: Fitting blade member 20: Fitting member 24: Concrete plate member 26: Sleeve arrangement hole 28: Gap 30: Concrete

Claims (2)

A floor sleeve that is fitted and fixed in a sleeve placement hole formed in a concrete plate member placed on the lower surface of a floor for constructing a building, and is placed through the floor that is formed by pouring concrete on the upper side of the concrete plate member. There is
a cylindrical sleeve body that has a length that is the sum of the thickness of the floor and the thickness of the concrete plate member, is fitted into the sleeve arrangement hole, and is inserted through a pipe;
It has an inner diameter that is in close contact with the outer circumference of the sleeve body and an outer diameter that sufficiently exceeds the hole diameter of the sleeve arrangement hole, is fixed to a predetermined outer peripheral position of the sleeve body, and has a thickness of the concrete plate member of the sleeve body. a ring-shaped collar member that determines the fitting position in the longitudinal direction and closes the gap between the outer circumference of the sleeve body and the sleeve arrangement hole from the upper side of the concrete plate member ;
A plurality of fittings provided at a plurality of locations on the outer periphery of the sleeve body under the collar member for supporting and fixing the sleeve body, which is fitted into the sleeve arrangement hole and positioned by the collar member, in a centered state. a blade member;
A floor sleeve comprising :
The floor sleeve of claim 1, wherein
The fitting blade member is a leaf spring member having spring properties, and the lower side of the leaf spring member is fixed to the outer periphery of the lower end of the sleeve main body, which is the lower side of the flange member. A floor sleeve characterized by having a shape in which an upper portion thereof is bent in a chevron shape so that a tip thereof is pressed against an outer periphery of the sleeve body.

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