JPH07280143A - Spacer for piping - Google Patents

Abstract

PURPOSE:To provide a piping spacer not only capable of keeping the high quality of placed concrete, but also allowing an easy and quick mounting work, while the intervals of pipe lines arranged approximately in parallel being properly and safely maintained. CONSTITUTION:A spacer 1 is formed out of a plate type spacer body 1a and a pipe holding section 1b laid at both ends thereof. Also, the spacer body 1a has rigidity sufficient enough to withstand a compression force or a bending force from the section 1b at both ends. The length L of the spacer body la determines the interval of synthetic resin pipe lines held with the section 1b. This section 1b is formed out of two arms curved inward and the forward ends thereof open to accept and elastically hold the pile lines.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spacer for piping embedded in a concrete plate such as a concrete slab or a concrete wall of a building.

[0002]

2. Description of the Related Art Generally, a synthetic resin pipe is buried in a concrete slab of a building because it has excellent durability and is easy to handle, and electric wires and other cables are wired therein. .

Conventionally, in order to bury the above-mentioned synthetic resin pipe in a concrete slab, as shown in FIG. 7, the synthetic resin pipe P that has been piped is tied to a slab streak S by a binding line T, and concrete placing is performed. This prevents the synthetic resin pipe P from unintentionally moving. In the figure, B is a floor driving box.

[Problems to be Solved by the Invention]

However, in the above-mentioned conventional fixing method using the binding line T, the synthetic resin pipe P in the unbound portion or the portion where the binding is insufficient is moved unintentionally, and the synthetic resin pipes P which are piped in parallel with each other. May approach each other, and as a result, the surroundings of the concrete may be deteriorated at this approaching part, and so-called junkers may occur.

The present invention has been made in order to solve the above-mentioned conventional problems, and an object of the present invention is to reliably and safely maintain the intervals between the pipes arranged in parallel and to pour concrete into the concrete. It is an object of the present invention to provide a piping spacer which can be maintained in high quality and can be easily and quickly attached.

[0006]

A pipe spacer according to the present invention is a spacer for holding a mutual space between a plurality of pipes embedded in parallel in a concrete plate such as a concrete slab or a concrete wall of a building. And a spacer main body having a bending resistance sufficient to keep the distance between the pipes to be held, and a pipe gripping portion provided at the tip of the spacer main body and elastically gripping the pipe. It is characterized by It is preferable that the spacer body and the pipe grip portion are integrally formed of synthetic resin, integrally formed of metal, or a combination of synthetic resin and metal. Further, the spacer main body may be provided with a reinforcing bar fixing means or a mounting means on a formwork.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a spacer, which is composed of a plate-shaped spacer body 1a and tube gripping portions 1b provided at both ends of the spacer body 1a. It is preferable that the spacer main body 1a and the pipe gripping portion 1b are integrally molded of a synthetic resin such as vinyl chloride to be made of a lightweight and non-rusting material.

The spacer body 1a has sufficient rigidity to resist the compressive force and bending stress from the tube gripping portions 1b at both ends. In the present embodiment, the spacer body 1a is formed in a plate shape, but may have any cross-sectional shape as long as it has a structure having the above rigidity, and the material is limited to the synthetic resin. It may be a metal instead of one. The length L of the spacer body 1a is the same as that of the pipe gripping portion 1b.
The interval between the synthetic resin pipes to be gripped by the above is defined, and a length (interval) of 1.5 times or more of the outer diameter of the pipe is preferable, but not limited to this.

The pipe gripping portion 1b is composed of two inwardly curved arms, and the distal end portions of the arms are opened to receive the pipe and elastically grip the pipe.
Therefore, even if the pipe diameters are slightly different, the pipes can be reliably gripped. It should be noted that the tip of the pipe gripping portion 1b has a roundness 1 so that it can be easily elastically pushed open when pushing the pipe.
It is advisable to provide b ′ or, as shown in FIG. 1 (C), to provide a receiving port piece 1b ″ that is slightly open to the outside. Although the main pipe holding portion 1b has elasticity, the spacer body 1a and the synthetic resin When integrally formed by metal or integrally formed by metal, the spacer body 1a needs to have an elastic material and a shape that do not impair the rigidity of the spacer body 1a. It may be formed integrally with another material such as resin and metal.

Since the spacer 1 of the present embodiment is constructed as described above, when the pipe P is pushed in as shown by the chain line in FIG. When it enters, it is closed and gripped as shown by the solid line. Figure 3
As shown in Fig. 3, the spacer 1 is interposed between the two pipes P, and the spacer body 1a of the spacer 1 has rigidity. The interval between the pipes P becomes smaller than this, and the surroundings of the concrete are not deteriorated.

In the above embodiment, two pipes P are arranged in parallel.
Although the spacer for holding the above has been described, the spacer 1 of the present invention is not limited to this.
As shown in FIG. 4, it may be configured as a three-pronged spacer 1 or a cross-shaped spacer 1.

Further, the spacer 1 of the present invention has the structure shown in FIG.
As shown in (A), the leg 1c may be hung from the spacer body 1a so that it can be installed on the slab form W. Note that 1c 'is a rotating mechanism, and may be configured so that the direction of the spacer 1 can be changed. Figure 5
FIG. 5B shows another embodiment in which the mounting foot 1c ″ is provided at the lower end of the leg 1c and the spacer 1 is stably installed on the slab form W, and FIG. 5C shows the lower side. It shows yet another embodiment in which the enlarged portion 1d is formed outside the pipe gripping portion 1b.

FIG. 6 (A) shows an embodiment in which a gripping claw 1e for fixing a reinforcing bar is provided at the lower end of a leg 1c suspended from the spacer body 1a, and FIG. 6 (B) shows a binding wire 1 attached to the spacer body 1a.
It shows another embodiment in which f is provided and the spacer 1 is bound and fixed to the reinforcing bar.

[0014]

【The invention's effect】

1) Since concrete junkers can be prevented,
The labor and cost of the repair can be reduced or reduced. 2) Because it looks good and looks good at the time of spine inspection,
It can make a good impression on the inspector. 3) Since the driving pipe is straight, there is no loss of pipe. 4) Easy and quick installation is possible without the need to use special tools. 5) Integral molding of synthetic resin makes it lightweight and free from rust. 6) Even if the tube diameters are slightly different, it is possible to deal with them, so that it is possible to mass-produce the same standard and at low cost.

[Brief description of drawings]

FIG. 1 shows an embodiment of a spacer of the present invention,
(A) is a top view and (B) is a front view.

FIG. 2 is a view showing a state in which the spacer of the above-mentioned embodiment is attached between two pipes.

FIG. 3 is a diagram showing an example of construction using the spacer of the present invention.

FIG. 4 is a diagram showing an example of a spacer having a plurality of tube gripping portions.

FIG. 5 is a view showing an embodiment of a spacer having a formwork setting means.

FIG. 6 is a view showing an embodiment of a spacer having a reinforcing bar fixing means.

FIG. 7 is a diagram showing a conventional construction example.

[Explanation of symbols]

 1 Spacer 1a Spacer body 1b Pipe gripping part 1b 'Roundness 1b' 'Receiving piece 1c Leg 1c' Rotating mechanism 1c '' Installation foot 1d Enlarging part 1e Gripping claw 1f Binding line B Floor driving box L Length P Piping S Slab muscle T Binding line W slab formwork

Claims (6)

[Claims] 1. A spacer for holding a mutual space between a plurality of pipes embedded in parallel in a concrete plate such as a concrete slab or a concrete wall of a building, which keeps a space between the pipes to be gripped. A spacer for piping, comprising: a spacer main body having sufficient bending resistance; and a pipe gripping portion provided at a tip of the spacer main body and elastically gripping the pipe. 2. The spacer for piping according to claim 1, wherein the spacer body and the pipe gripping portion are integrally formed of synthetic resin. 3. The pipe spacer according to claim 1, wherein the spacer body and the pipe gripping portion are integrally formed of metal. 4. The pipe spacer according to claim 1, wherein the spacer body and the pipe gripping portion are formed integrally of synthetic resin and metal, respectively. 5. The spacer for piping according to claim 1, wherein the spacer body is provided with a reinforcing bar fixing means. 6. The pipe spacer according to claim 1, wherein the spacer body is provided with a mounting means for mounting on the mold.