JPH09152063A - Hanging band for piping - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve working efficiency at one-handedly fastening a bolt and a nut by performing combination of the leg parts of a turnbuckle with the end part of one hanging band by the use of a nut having a guide hole for the internal thread. SOLUTION: The upper end of one hanging band 5A and both leg parts 3A, 3B of a turnbuckle 3 are connected together with a nut 7, and the nut 7 is fixed by a method such as hard caulking so as not to co-rotate accompanying rotation of a bolt 6. The bolt 6 is rotationally movably fixed to the end part of the other hanging band 5B by a bolt fixing means 6A, and even when the bolt 6 is detached from the nut 7, the respective ones are prevented from falling. Further, a guide hole 7C is provided on the first portion of the internal thread of the nut 7, and the inner diameter is gradually reduced toward the internal thread. Hereby, even if the bolt 6 is inserted in the oblique direction as shown by the arrow mark (b), the bolt 6 is easily corrected into the state of the arrow mark (a) by means of the guide hole 7C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspension band for a pipe used for hanging a pipe such as gas or water from a ceiling or the like.

[0002]

2. Description of the Related Art The structure shown in FIG. 8 is widely used as a suspension band for piping. The prototype of this type is disclosed in Japanese Utility Model Publication No. 29-12480. In this type of suspension band for piping, the upper end of a suspension bolt 1 is fixed to an internal thread of an insert embedded in a ceiling slab, and a turnbuckle 3 is attached to the suspension bolt 1 via a nut 2 so as to be adjustable in height. The pipe 8 is fixed by tightening each end of the suspension bands 5A and 5B connected to both legs 3A and 3B of the turnbuckle 3 by the hinge mechanism 4 with bolts 6 and nuts 7. Various types of modifications of this configuration have been proposed or implemented.

In the actual work, the work of fixing the illustrated suspension band for piping to the insert embedded in the ceiling slab is performed in advance, and then the work of actually fixing the pipe 8 is performed. When fixing the pipe 8, the nut 7 is removed once, the side of the hanging band 5B is released, the pipe 8 is passed through the inside, and then the hanging band 5B is returned to the original position and tightened by the nut 7. .

[0004]

In the suspension band for piping shown in FIG. 8, the bolt holes provided at the ends of the legs 3A and 3B of the turnbuckle 3 and the ends of the suspension bands 5A and 5B are so-called stupid holes. Therefore, when the nut 7 is removed at the stage of attaching the pipe 8 and the suspension band 5B is released to the state shown by the phantom line, the bolt 6 often falls off from the intermediate fitting 3. Therefore, it is necessary to temporarily fix the nut 7 removed to release the suspension band 5B to the bolt 6 again.

[0005] In this regard, the following configuration is known as a technique for improving workability. That is, Japanese Utility Model Application Laid-Open No.
In the technique disclosed in Japanese Patent Publication No. 5 (1993), a turnbuckle and a suspension band are riveted to each other with a fastening band. The technique disclosed in Japanese Utility Model Publication No. 56-35588 has a structure in which a turnbuckle and a suspension band are integrally formed, and a projection provided at the tip of the suspension band is hooked into a hole formed at the base of the suspension band. is there. 4-10759
In the technique disclosed in Japanese Patent Publication No. 2 (1993) -1995, a turnbuckle and a suspension band with a lower end released are integrally formed, and a bolt and nut are rotatably fixed to one of the lower end release portions of the suspension band, and a lower end release portion of the suspension band is formed. Is inserted into the notch provided on the other side and tightened. Shokai 63-4528
The technique disclosed in Japanese Patent Publication No. 1 is configured such that a turnbuckle is also used as a suspension band, and is screwed to a full-screw support rod screwed to the turnbuckle with a nut rotatably fixed to a tip of the suspension band. .

However, in the above techniques (1) to (4), if the water hammer phenomenon occurs in the supported pipe, the pipe may fall off, and the above technique does not improve workability.

The inventor of the present invention has specified a hanging band for piping which can eliminate the above-mentioned poor workability and can support (install) the piping with one hand and can be firmly fixed. Although it was clarified in Japanese Patent Application No. 7-256826 to 7, the subsequent research led to the present invention by finding room for further improvement.

As is apparent from the above, the present invention is intended to provide a piping suspension band having improved usability.

[0009]

According to the present invention, there is provided a piping suspension band according to the present invention, wherein the ends of the suspension band are attached to the legs of a turnbuckle attached to the lower end side of a suspension bolt whose upper end is fixed to a ceiling slab or the like by means of bolts and nuts. In the type of piping suspension band where the parts are fixed, the leg of the turnbuckle and the end of one of the suspension bands are connected with a nut that has a guide hole for the female screw, and this nut is fixed with a firm crimp. .A turn attached to the lower end side of the suspension bolt whose upper end is fixed to the ceiling slab, etc., as well as being fixed by welding, adhesion, etc., and the bolt being rotatably fixed to the other end of the suspension band by bolt fixing means. For a type of piping suspension band in which the ends of the suspension band are fixed to the legs of the buckle with bolts and nuts, turnbuckle Section and the end of one suspension band are connected with a nut that has a guide hole for the female screw, and this nut is rotatably fixed by loose caulking, a collar, etc., while the other suspension is suspended. Secure the caulking to the end of the band by tightening the bolts with the bolt fixing means.
It is fixed non-rotatably by welding / adhesion, etc., and the length of the suspension band on the side where the nut is attached is larger than one half of the circumference of the pipe so that the pipe can be inserted. To do.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A suspending band for piping according to the present invention will be described with reference to FIGS. In the embodiment shown in FIG. 2, the upper end of the suspension bolt 1 is fixed to a female screw of an insert embedded in a ceiling slab, and a turnbuckle 3 is attached to the suspension bolt 1 via a nut 2 in a height-adjustable manner. , Both legs 3A and 3B of this turnbuckle 3
In addition, the piping 8 is fixed by attaching the respective ends of the suspension bands 5A and 5B connected by the hinge mechanism 4 (which may be any of a hinge type, an assembly type, and a lantern type).

In the conventional suspension band shown in FIG. 8, both legs 3A and 3B of the turnbuckle 3 and the upper ends of the suspension bands 5A and 5B are tightened with ordinary bolts and nuts. Therefore, the above-mentioned inconvenience is caused.

Therefore, as shown in FIG. 2, the upper end of one suspension band 5A and both leg portions 3A and 3B of the turnbuckle 3 are provided.
And the nut 7 are connected, and the nut 7 is fixed by a method such as firm caulking, welding, and adhesion so as not to be accompanied by rotation of the bolt, and the bolt 6 is attached to the end portion of the other suspension band 5B. A structure is adopted in which the bolts are rotatably fixed by the bolt fixing means 6A, and as shown in the drawing, even when the nuts 7 are removed from the bolts 6, the nuts 7 do not fall off from the hanging bands 5A and 5B.

Further, as shown in FIG. 6, the upper end of one suspension band 5A and one leg portion 3A of the turnbuckle 3 or both leg portions 3A and 3B are loosely caulked with a nut 7,
It is rotatably fixed by a structure such as a collar portion, and a bolt 6 is fixed to the end portion of the other suspension band 5B by a bolt fixing means 6A so as not to rotate by hard caulking, welding, bonding, etc., and a nut 7 The bolt 6 is fixed so as not to rotate even when it is rotated, and as shown in the figure, the structure is such that even if the nut 7 is removed from the bolt 6, they do not fall off from the hanging bands 5A and 5B.

The structure of the crimping prevention portion of the nut 7 is shown in FIG. 3A. To prevent the nut 7 from being crimped,
Is so strong that it cannot rotate, or
Whether the nut 7 is loose enough to rotate freely.

FIG. 3B shows a mode in which the nut 7 is fixed by welding. As shown in the figure, it can be rotated by spot welding to the end of the nut 7, and can be made non-rotatable by welding between the leg 3B of the turnbuckle 3 and the end. You can

FIG. 3C shows a mode in which the nut 7 is fixed with an adhesive.

The fixed state of the bolt 6 is shown in FIG. The bolt fixing means 6A shown in FIG. 4A is a ring-shaped or disc-shaped member made of rubber, a soft synthetic resin material, a foamed synthetic resin material, or the like, so that the hanging band 5B is sandwiched between the bolt head and the bolt head. The bolt 6 is inserted into the bolt 6 so that the bolt 6 can rotate and can be prevented from falling off.
Further, it may be fixed by tightening with an annular metal material such as a spring washer, and further, by crushing a part of the bolt to form a collar portion, it is rotatable and does not fall off. It may be configured to.

Furthermore, a sheet (paper, synthetic resin, rubber, soft synthetic resin material, etc.) in which the through hole 5C provided in the suspension band 5B for passing the bolt 6 is coated with an adhesive or a pressure sensitive adhesive is used.
Form a film by sticking (foaming synthetic resin material, etc.) on it and closing it with rubber, synthetic rubber, etc. by a dipping method, etc., so that the bolt 6 can be pierced through this film so that it can rotate and does not fall off. It may be configured to.

Spot welding may be performed as shown in FIG. 4B.

The bolt 6 is fixed so that it can be rotated if the nut 7 cannot rotate, and if the nut 7 side can rotate, the bolt 6 side is fixed.

Therefore, either the bolt 6 or the nut 7 is in a fixed state and does not rotate together. Therefore, since it is not necessary to press both the bolt 6 and the nut 7 by hand when tightening, work with one hand is possible.

The embodiment shown in FIG. 5 shows an example in which the turnbuckle 3 and the suspension band 5A are formed of a single plate material. The configuration of other parts is the same as that of the above-described embodiment.
The embodiment shown in FIG. 6 is one of the leg portions 3 of the turnbuckle 3.
In this example, the upper end of the suspension band 5A is fixed to A by crimping with the nut 7, and the other leg 3B is free. The configuration of the other parts is the same as the above example.

As shown in FIG. 7, in another embodiment of the present invention, the length of the suspending band 5A is set to be larger than one half of the circumference of the pipe 8 so that the pipe can be inserted. With this configuration, even when the bolt 6 and the nut 7 are released, the pipe 8 is supported by the suspension band 5A, and therefore does not fall off even if it is not pressed by hand.

Since the nut 7 of the conventional piping suspension band shown in FIG. 8 is provided with a female screw over the entire length of the inner space, the bolt 6 is inserted vertically from the female screw of the nut 7 and is not rotated. And, the screw thread does not mesh with the insertion in an oblique state, so it cannot be tightened. However, since the bolt 6 is fixed to the tip of the suspension band 5B, when the side of the suspension band 5B is rotated,
In some cases, the insertion is from an oblique direction, and it may be difficult to properly insert from the vertical direction by one-handed operation.

The present invention improves on the above points,
The details will be described with reference to FIG.

FIG. 1 shows an essential part of the present invention.
・ Corresponds to the portion corresponding to the nut 7 in FIGS. 3, 5, and 6.

In FIG. 3, the female screw of the nut 7 is arranged over the entire length of the internal space, but in the present invention,
A guide hole 7C is provided in front of the female screw. As shown in FIG. 1A, the guide hole 7C has a tapered shape in which the inner diameter gradually decreases toward the female screw, and the inner diameter of the female screw as shown in FIG. 1B. It is possible to adopt a mode in which the guide hole 7C having an inner diameter larger than that of the female screw is provided and the taper is provided immediately before the female screw. It is more preferable that the portion transitioning to the taper be a curve without a step.

In the nut 7 as shown in FIG.
As indicated by arrow a, it is difficult to insert the bolt 6 unless the female screw is inserted in the vertical direction. However, according to the present invention, for example, as indicated by arrow b, , Even if the bolt 6 is inserted from an oblique direction, the guide hole 7C
It is easy to correct the bolt 6 to the state of the arrow a by the action of. This greatly facilitates the work of engaging the bolt 6 with the nut 7 by one-handed operation, and the usability is significantly improved.

[0029]

According to the piping suspension band of the present invention, as shown in FIG. 2 or 7, even when the bolt 6 and the nut 7 are released when the piping 8 is attached, each of the turnbuckles 3 Legs 3A and 3B or hanging band 5A
・ Does not fall off from the end of 5B. Therefore, it is not necessary to hold down the bolts 6 and nuts 7 and to temporarily fix the bolts 6 and nuts 7, which were required in the conventional work using a suspension band. Moreover, when tightening the bolts and the nuts with one hand, the nuts 7 have guide holes 7C. Since the bolt 6 is provided, the bolt 6 can be easily placed in a vertical posture with respect to the female screw of the nut 7, which is advantageous in that it is very easy to use and the working efficiency can be remarkably improved.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view of an essential part showing an embodiment of the present invention 1.

FIG. 2 is a front view showing an embodiment of the prior invention.

[FIG. 3] Similarly, an enlarged cross-sectional view of the main part

FIG. 4 is a sectional view showing a bolt fixing means.

FIG. 5 is a front view showing another embodiment of the present invention.

FIG. 6 is a front view showing another embodiment as well.

FIG. 7 is a front view showing another embodiment as well.

FIG. 8 is a front view showing a conventional product.

[Explanation of symbols]

 1-Suspension Bolt 2-Nut 3-Turnbuckle 3A-Leg Part 3B-Leg Part 4-Hinge Mechanism 5-Suspension Band (Whole) 5A-Suspension Band 5B-Suspension Band 5C-Through Hole 6-Bolt 6A-Bolt Fixing Means (Rotatable) 6B-bolt fixing means (non-rotatable) 7-7 nut A-7 nut fixing means (non-rotatable) B-7 nut fixing means (rotatable) C-guide hole 8-piping

Claims (3)

[Claims] 1. A hanging band for pipes of the type in which the ends of the hanging band are fixed by bolts and nuts to the legs of a turnbuckle attached to the lower end of the hanging bolt whose upper end is fixed to a ceiling slab or the like. The leg of the buckle and the end of one suspension band are connected with a nut that has a guide hole for the female screw, and this nut is fixed by firm caulking, welding, bonding, etc., and the other suspension band. A suspension band for piping, characterized in that a bolt is rotatably fixed to the end of the stud by bolt fixing means. 2. A suspension band for pipes of a type in which the ends of the suspension band are fixed by bolts and nuts to the legs of a turnbuckle attached to the lower end side of the suspension bolt whose upper end is fixed to a ceiling slab or the like. The leg of the buckle and the end of one of the suspension bands are connected with a nut provided with a guide hole for the female screw, and this nut is rotatably fixed by loose caulking, a collar, etc., A suspension band for piping, characterized in that a bolt is fixed to the end of the other suspension band by means of a bolt fixing means so as not to be rotatable by means of firm caulking, welding, bonding or the like. 3. The pipe according to claim 1 or 2, wherein the length of the suspension band on the side to which the nut is attached is set to a range larger than one half of the circumference of the pipe and the pipe can be inserted. Hanging band.