JPH11201329A - Sheath pipe rise holder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily execute the piping work by providing a semi-cylindrical and curved holder main body to hold an outer circumferential surface of a sheath pipe, a holding part of C-shaped section which is continuously provided on its upper end, and a support leg which is provided downward of and continuous to the holder main body. SOLUTION: A sheath pipe 10 is inserted in a holding part 23 of C-shaped section of an upper end of a holder 20, and the holder 20 is moved to the scheduled position for erection of the sheath pipe 10. The holder 20 is aligned with the scheduled position by pressing and bending the sheath pipe, and the holder 20 is fixed to a floor surface by screws or rivets making use of fitting holes 22c. The sheath pipe 10 is cut to the prescribed height from the floor surface to be connected to a header or to be connected from a decorative plate to a metallic riser pipe. Then, a fluid pipe 30 is passed into the sheath pipe 10 in the horizontal direction, and taken out in the perpendicular direction. The header or a mechanical joint 40 for floor fitting is joined with an end part of the inserted fluid pipe 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double pipe in which a flexible fluid pipe is inserted into a sheath pipe by using a sheath pipe for water supply and hot water supply pipes of a building, and the sheath pipe is placed vertically from a horizontal position. The present invention relates to a holder for starting up at a time.

[0002]

2. Description of the Related Art For a pipe for water supply or hot water supply in a concrete building, a sheath pipe is previously piped into concrete to be poured, and after the concrete is cured, the sheath pipe is used. There is a sheath pipe construction method in which a fluid pipe is inserted into a sheath pipe to perform piping.

[0003] In the above-mentioned sheath tube construction method, when the sheath tube is raised from a horizontal position on the concrete slab surface to a vertical state along the wall, as a holding tool for holding a rising portion of the sheath tube, for example, a real open flat is used. There are those described in, for example, JP-A-6-1965. In particular, ninth to eleventh of this publication
The holder shown in the figures has been widely implemented in the past.

[0004]

This type of holder is required to be easy to use in order to improve workability in order to perform piping work efficiently, and is buried in cast concrete. It is required to be inexpensive because it is an accessory member that can be manufactured, and to be easy to manufacture for that purpose.

[0005] In Japanese Utility Model Laid-Open No. 6-1965 mentioned above,
In order to fix the entire peripheral surface of the sheath tube at the lower end and the upper end of the holder main body, a conventional holder has a semi-cylindrical tube fixed body formed separately from the holder main body (the sheath tube is attached to the holder main body). This is a method of fixing the holding piece to be attached) by welding. In this method, the pipe fixing body must be prepared separately from the holder main body. As a result, the number of parts increases, the parts management becomes complicated, and the pipe fixing body may be lost by the operator. .
In addition, since welding work is a separate process with preparing welding equipment,
It is not good in that it reduces the efficiency of piping work.

Further, the patent publication proposes an invention in which the holder is formed in a spiral shape as an invention for solving the above problem. However, a spiral is used to form the holder main body and the annular portion at the upper and lower ends. Since it has a structure, it cannot be manufactured by simple press working, and there is a problem in that the manufacturing cost cannot be kept low. Further, when the sheath tube is attached, it is necessary to perform an operation of inserting the sheath tube into the annular portion at the upper end and the lower end from the inside.

[0007] The present invention solves the above-mentioned problems, reduces the number of parts, can reduce the manufacturing cost, and is easy to use, easy to use, and provides a reliable sheath tube riser. To provide.

[0008]

SUMMARY OF THE INVENTION The gist of the present invention is to provide a semi-cylindrical shape and a curved shape for holding substantially half of the outer peripheral surface of the sheath tube at a portion where the sheath tube rises vertically from a horizontal position. A holding tube main body, a holding portion having a C-shaped cross section connected to an upper end of the holding member main body, and a supporting leg connected downward from the holder main body. It is.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a use state of an embodiment of the present invention, FIG. 2 is a perspective view of the same, and FIG. 3 is a view taken in the direction of arrows AA in FIG. Reference numeral 10 denotes a sheath tube, and a sheath tube 10 that rises from a horizontal position to a vertical state is held by a sheath tube rising holder (hereinafter simply referred to as a holder) 20 described below.

The holder 20 of the present embodiment has a semi-cylindrical shape for holding substantially half of the outer peripheral surface of the sheath tube 10, and has a holder main body 21 which is curved upward with a predetermined radius of curvature; A pair of support legs 22 are continuously provided below both sides of the holder main body 21 to support the entire holder, and the sheath tube 10 is restrained from moving forward, backward, left and right, and the holder main body 2 is restrained.
1 and a holding portion 23 provided continuously at the upper end of the holder main body 21 so as to press against the back surface.
As shown in FIG. 3, the cross-sectional shape of the grip portion 23 has a C-shaped annular shape with a portion cut away, and can hold the sheath tube 10.

The pair of support legs 22 are L-shaped, and have a vertical portion 22a for supporting the holder body 21 and a horizontal portion 2 for fixing to a floor surface of a concrete slab or the like of a building.
2b. At each of the horizontal portions 22b of the pair of support legs 22, a mounting hole 22c is formed.

Since the holder 20 according to the present invention has a relatively simple shape with the above configuration, it does not require a complicated manufacturing process and presses a single metal plate without bonding or welding. By performing a combination of shearing and bending. Further, the entire holder 20 may be formed of a high-strength synthetic resin, for example, ABS.

Next, a construction procedure according to an embodiment of the present invention will be described. First, the sheath tube 10 is drawn and laid on the floor surface of a concrete slab or the like, and then the sheath tube 10 is inserted into the gripping portion 23 having a C-shaped cross section at the upper end of the holder 20, and the sheath tube 10 is started up. The holder 20 is brought to a predetermined position, the sheath tube is pushed and bent so that the holder 20 matches the predetermined position, and the holder 20 is fixed to the floor surface with screws or rivets using the mounting holes 22c. Thereafter, the sheath tube is cut to a predetermined height from the floor surface for connection to the header or for connection from the decorative plate to a metal riser tube (not shown). The sheath tube 1 from the horizontal direction
0 and taken out vertically. Next, for example, a mechanical joint 40 for header or floor mounting is joined to the end of the inserted fluid pipe 30. As described above, the sheath tube 10 and the fluid tube 30 are raised by the holder 20 while bending upward from the horizontal position and held vertically.

The inside of the thus held sheath tube 10 is in a state in which the fluid tube 30 is inserted as shown in FIG. The sheath tube 10 is corrugated and formed of a hard resin such as hard vinyl chloride or high-density polyethylene.
0 is formed of a resin such as polybutene, polyethylene, or cross-linked polyethylene.

By the way, as described above, the procedure for connecting the joint 40 to the end of the fluid pipe 30 after inserting the fluid pipe 30 into the sheath pipe 20 has been described. However, not limited to the construction procedure, as shown in FIG.
0 is inserted, the joint 40 is joined to the end of the fluid pipe 40, and the one inserted into the holding portion 23 of the holder 20 having a C-shaped cross section is prepared in advance at the time of factory shipment. And
If the same piping work is performed thereafter, the number of man-hours can be further reduced. In this case, in order to allow the joint 40 to pass through the grip portion 23, the inner peripheral diameter of the C-shaped
May be larger than the maximum outer diameter of the above.

[0016]

As described above, according to the present invention, since the number of parts is as small as one, parts management becomes easy, and there is no risk of losing fine parts for mounting, and shearing and bending by pressing from one metal plate. Since it can be formed only by processing, the manufacturing cost can be reduced. In addition, at the time of actual construction, if a holder in which the holder is attached to the sheath tube in advance is prepared, the work efficiency can be remarkably improved.

[Brief description of the drawings]

FIG. 1 is a side view showing a use state of an embodiment of the present invention.

FIG. 2 is a perspective view showing a use state of one embodiment of the present invention.

FIG. 3 is a view as viewed in the direction of arrows AA in FIG. 1;

FIG. 4 is a perspective view in which a holder is attached to a sheath tube.

[Explanation of symbols]

 10: Sheath tube 20: Sheath tube rise holder 21: Holder body 22: Support leg 22a: Vertical portion 22b: Horizontal portion 22c: Mounting hole 23: Grip portion 30: Fluid tube 40: Coupling

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Ryoichi Iwayoshi 2nd Daifuku Kuwana-shi, Mie Hitachi Metals Kuwana Plant

Claims (1)

[Claims] 1. A semi-cylindrical and curved holding body for holding substantially half of the outer peripheral surface of a sheath tube at a portion where the sheath tube rises from a horizontal position to a vertical state, and the holding body. A holding portion having a C-shaped cross section continuously connected to an upper end of the sheath tube, and a support leg continuously connected downward from the holder main body.