JPS60196422A - Material for sleeve pipe and setting method thereof - Google Patents

Abstract

PURPOSE:To make sleeve piping work ever so easy, by installing sleeve pipe setting pieces oppositely in a side face inside a mold panel, while inserting a sleeve pipe, made up in such a form as cutting a tubular body open in a longitudinal direction, from space between reinforcing bars, and rolling it on these setting pieces. CONSTITUTION:Sleeve pipe setting pieces 2 are installed oppositely in an inner surface of a mold panel 6. Then, a sleeve pipe material 1 being cut open and extended in a longitudinal direction is inserted from space (a) between reinforcing bars 7. Next, sleeve pipe setting pieces at both side are wrapped up with the sleeve pipe material 1, then a nicked part of the sleeve pipe material 1 additionally wrapped is joined together, and both are stuck together with adhesive tape 4. Consequently, sleeve piping work comes to the place so easily and, what is more, operating time is reducible.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a sleeve pipe buried in the concrete width of a structure such as a beam, and several methods thereof.

(Prior art) Conventionally, in order to install a sleeve pipe to form a hole in reinforced concrete 1, concrete 1 for beams, etc., and a building frame, the sleeve pipe was inserted between the reinforcing bars after completing the reinforcing work between the formwork panels. It was inserted and concrete I was poured into the formwork panel.

For this reason, insert the sleeve pipe into the narrow space between the reinforcing bars.A
The construction work was extremely difficult.

FIG. 1 shows a sleeve pipe 10 installed in a formwork panel, and FIGS. 2 to 5 each show a conventional example, and the steps thereof are as follows. That is, the second
After arranging the reinforcing bars 7 as shown in the figure, the sleeve pipe 10 is cut to have the same length as the center of the beam.

Next, as shown in FIG. 3, the sleeve pipe 10 is crushed into an elliptical shape between the reinforcing bars 7 and the center a of the reinforcing bars 7, and inserted vertically into the beam.

In this case, the outer diameter φ of the sleeve pipe 10 is between the reinforcing bar 7 and the reinforcing bar 7.
Since it is several times larger than medium a, it is quite difficult to insert it as it requires very strong force.

Next, as shown in FIG.
The formwork panel 6.6 is restored and removed horizontally.
Since the rll b between them and the length b of the sleeve pipe are the same length, the end of the sleeve pipe 10 gets stuck and cannot be easily leveled. In other words, it is very difficult to make the sleeve pipe horizontal because it requires a strong force in the horizontal direction.

Next, as shown in FIG. 5, the sleeve pipe 10 must be placed in a horizontal position, but since the work is carried out between the narrow formwork panels 6.6, the sleeve pipe 10 may become distorted.
It may shift or become misaligned. To prevent this, it is necessary to drive four nails 5 diagonally into each end, which is very time-consuming.

That is, it is necessary to insert both hands into the space a between the reinforcing bars 7 and 7 and use a hammer to drive the nails 5 diagonally to the top, bottom, left side, and right side, respectively.

The top, left and right sides are easy to reach, but the bottom is often difficult to reach. For this reason, the actual situation is that the lower nail 5'' cannot be driven in.

For this reason, depending on the situation, the sleeve pipe 10 may be
- It may be washed away by pressure during striking.

It is extremely difficult to insert sleeves into beams that incorporate reinforcing bars for the above-mentioned construction work, and a considerable amount of work is required.
Even close relatives often fail.

(Object of the Invention) This invention was devised to solve the above-mentioned problems, and an object of the present invention is to provide a sleeve pipe that can be easily inserted into a sleeve pipe, and a method for installing the sleeve pipe. purpose.

(Structure of the Invention) The sleeve pipe material of the present invention is characterized in that it has a shape obtained by cutting a cylindrical body in the longitudinal direction.

In addition, the method for installing a sleeve vibe pipe according to the present invention is such that a sleeve vibe mounting piece having a diameter smaller than the inner diameter of the sleeve pipe is placed opposite to the inner surface of the formwork panel before or after reinforcing, and A sleeve pipe 4J having a shape cut out in the longitudinal direction is inserted between the reinforcing bars, and after being wrapped around the sleeve pipe mounting piece, the open portion of the edge J is locked to form a cylindrical formwork. do. In this invention, a sleeve pipe is defined as a material that has been locked into a cylindrical formwork, and a sleeve pipe material is defined as a shape obtained by cutting the cylindrical body in the longitudinal direction before it is locked. do.

The sleeve pipe attachment piece is made of synthetic resin material such as foamed plastic, rubber, wood, etc., and is attached to the inner surface of the formwork panel with the negative side using nails or adhesive. If a through hole is previously drilled near the center of the sleeve pipe attachment piece, it can be easily attached to the formwork panel using nails or the like. Furthermore, although the sleeve pipe attachment piece and the sleeve pipe do not necessarily have to be in close contact with each other over the entire surface, it is preferable that they are in close contact with each other in a columnar manner over the entire surface in order to prevent the concrete from getting wet.

(Example) The present invention will be explained below based on embodiments shown in the drawings.

Reference numeral 1 in FIG. 6 shows an example of the sleeve pipe material of the present invention.

If the sleeve pipe material 1 is made of elastic metal, paper, synthetic resin, etc., it can be easily inserted into the sleeve. In other words, by cutting a cylindrical conventional sleeve pipe in the longitudinal direction and stretching it into a plate shape or rolling it into a small size when inserting it into the formwork panel, it can be inserted through a small gap, and furthermore, after insertion. Since it becomes cylindrical due to the tH force of the sleeve pipe material 1, it is possible to save the effort of forming it into a cylindrical shape.

In addition, the end (11) of the rolled sleeve material 1 wound around the sleeve pipe mounting pieces 2, 2 in the winding direction (11) may be joined with adhesive or the like, or the cut portion may be glued as shown on the table. Join and fix with tape 4 etc.

Concrete 1 - When removing the mold after pouring, the sleeve pipe may be removed at the same time, or it may be buried. When removing the sleeve pipe, the work can be done easily by cutting the joint and rounding it up into smaller pieces.

Figures 6 to 9 show an embodiment of the sleeve pipe attachment method.

First, the sleeve vibe attachment pieces 2 shown in FIG. 6 are attached one by one to the required positions on the inner surface of the formwork panel 6 using adhesive, pressure-sensitive adhesive, or buttons 5, as shown in FIG.

Next, the sleeve pipe material 1 which has been cut in the longitudinal direction and stretched is inserted from the center a between the reinforcing bars 7 and 7. Sleeve pipe material 1
It is also possible to make a long incision and then roll it into a small ball.

The length of the sleeve pipe material 1 is the rl between the formwork panels 6°6
Cut into pieces shorter than l b. This is because each sleeve pipe attachment piece 2 is attached to the inner surface of the formwork panel 6, so that it can be made thicker or shorter. For example b = 5
00 m/m, c=30m/m, then d is 47
It is only necessary to make it slightly longer than 0 m/m. In other words, d=
It is 11 minutes at 480 m/m.

Next, the sleeve pipe mounting pieces 2 at both ends are wrapped with the sleeve pipe material 1 cut in the longitudinal direction and spread out. Next, the cut portion of the wrapped sleeve pipe material 1 is pasted together with adhesive tape 4.

Rotate the pasted part and turn it to the bottom. This will be done later in Concrete 1.
This is to prevent the tape from being damaged by the pressure applied.

(Effects of the Invention) The structure of this invention is as described above, and according to this invention, the following effects can be obtained.

Since the sleeve pipe material according to the present invention has a shape cut in the longitudinal direction, it can be inserted through the gap between the reinforcing bars arranged in the form panel and installed by wrapping it around the sleeve pipe attachment piece. Therefore, the sleeve pipe can be easily inserted even from a distance considerably smaller than the diameter of the sleeve pipe, and positioning and attachment can be performed easily, reliably, and safely. Further, since there is no need to crush the sleeve pipe as in the conventional case, the cross-sectional shape of the sleeve pipe is not deformed, and the working time can be greatly shortened.

Next, according to the sleeve pipe installation method of the present invention,
Since the sleeve pipe attachment piece is provided on the inner surface of the formwork panel, the sleeve pipe can be positioned and attached reliably.

Also, for the same reason, the length of the sleeve pipe can be made shorter than before, so the range of movement of the sleeve pipe is not restricted by formwork panels, reinforcing bars, etc.
It can also accommodate errors in the distance between formwork panels, providing flexibility in installation work.

As described above, the removal does not require advanced techniques and skills, and the working time can be greatly shortened, so miscellaneous expenses such as personnel costs can be significantly reduced.

[Brief explanation of drawings]

1 to 5 show a conventional example, in which FIG. 1 is a perspective view of a state in which it is installed in a formwork panel, and FIGS. 2 to 5 are process charts for inserting a sli nib pipe, respectively. 6 to 9 show embodiments of this invention.
The figure is a perspective view showing the attachment relationship between the sleeve material cut in the longitudinal direction and the sleeve pipe attachment piece, and FIGS. 7 to 9 are process diagrams of the attachment method of the present invention. 1...Sleeve pipe shrine, 2...Sleeve pipe mounting piece, 4...Adhesive tape, 5...Nail, 6...Formwork panel, 7...Reinforcement bar, 10...Sleeve pipe, a, b, c, d, φ...Dimension marking symbol. 1 Figure 1 6 M 4 Figure 8 ``= 7 T, :+ Figure 9

Claims (1)

[Claims] (11 Sleeve vibe shrine in the shape of a cylindrical body cut in the longitudinal direction. (2) A sleeve pipe mounting piece with a diameter smaller than the inner diameter of the sleeve pipe is installed inside the formwork panel before or after reinforcing. A sleeve pipe material in the shape of a cylindrical body cut out in the longitudinal direction is placed opposite to the side surface, and inserted between the reinforcing bars, wrapped around the sleeve pipe attachment piece, and then the cut part is locked and the sleeve is closed. A sleeve pipe installation method characterized by forming a shaped formwork.