JPH0210871Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a pipe fixing device used to fix a pipe to a mounting frame during piping work such as a conduit.

(Prior art) As a conventional fixing device of this type, as shown in Japanese Utility Model Publication No. 48-45559, for example, as shown in FIG. It is provided with a locking part d for the mounting frame C and a tongue part e bent outward at a substantially right angle at the other end, and the tongue part e has an insertion hole g for the fixed bottle f relative to the mounting frame c.
It is known that the tube a is fixed to the mounting frame c by tightening the tongue portion e with the bolt f.

(Problem to be solved by the invention) In the above-mentioned conventional device, the tongue portion e is attached to the mounting frame c.
When tightening the pipe in a floating state, the tongue part e curves as shown by the dotted line in Figure 2, and even if the tightening force is increased, the fixing force of the tube a does not increase beyond a certain value, and it is firmly fixed. Moreover, due to the torsional torque acting on the seat of the bolt f of the tongue part e during tightening, the main body part b may move together with the tube a as shown by the dotted line in Figure 3. This becomes a big problem if the material is flexible.

Furthermore, as shown in Fig. 4, there is also known a structure in which reinforcing ribs h are formed on both sides extending from the main body part b to the tongue part e, as disclosed in Japanese Utility Model Publication No. 53-37264. Even if the curvature of the tongue portion e can be prevented to some extent, the head of the bolt f comes into point contact with the tongue portion e because the tongue portion e is curved in the width direction.
The bolt f is likely to loosen due to vibration or external force, and the movement of the main body b due to the above-mentioned torsional torque cannot be prevented.

SUMMARY OF THE INVENTION An object of the present invention is to provide a tube fixing device that eliminates the above-mentioned disadvantages, prevents movement of the main body, and fixes the tube more firmly.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a mounting system consisting of a C-shaped steel material in which a pipe is attached to one end of a main body that is curved into a substantially U-shape according to the outside diameter of the pipe. A device comprising a locking portion for the frame and a tongue portion bent outward at a substantially right angle at the other end, the tongue portion forming an insertion hole for a fixing bolt to the mounting frame, the tongue portion It is characterized in that a bent portion is formed at the outer end of the mounting frame so as to abut the inwardly inclined opening edges on both sides of the mounting frame.

According to the above configuration, the bending portion acts as a support due to the bending portion coming into contact with the opening edge, thereby preventing the tongue portion from curving as shown by the imaginary line in FIG. This increases the bending rigidity of the tongue in the width direction,
Curving of the tongue in the width direction due to bolt tightening is also prevented, and the pipe can be tightened and fixed with the head of the bolt in surface contact with the tongue, making it difficult for the bolt to loosen. Further, the bite of the bent portion into the inwardly inclined opening edge prevents movement of the main body portion due to torsional torque acting on the tongue portion.

(Example) The present invention will be explained with reference to an example shown in FIG. 5 and below.

Referring to FIGS. 5 to 8, 1 indicates a pipe such as a conduit, 2 indicates a mounting frame made of C-shaped steel, and the pipe 1
was fixed to the mounting frame 2 using the proposed fixture A.

The fixture A is inserted into the main body 3 which is curved into a substantially U-shape in accordance with the outer diameter of the tube 1, between the inwardly inclined opening edges 2a, 2a on both sides of the mounting frame 2. It is formed integrally with a locking part 4 at one end that is locked on the inner surface, and a tongue piece part 5 at the other end bent outward at a substantially right angle, and the attachment part is attached to the tongue piece part 5. An insertion hole 7 for a fixing bolt 6 to the frame 2 is formed, and the mounting frame 2
A nut member 8 spanning the opening edges 2a, 2a is mounted inside using a spring 9, and the bolt 6 is inserted into the insertion hole 7.
The tube 1 is fixed to the mounting frame 2 by tightening the tongue portion 5 by screwing it through the nut member 8. In the drawing, 10 indicates a washer.

Although the above is not particularly different from the conventional one described above, in the illustrated embodiment, according to the feature of the present invention, the outer end of the tongue portion 5 is attached to the opening edges 2a, 2a of the mounting frame 2. A bending portion 5a that comes into contact is formed.

It is sufficient that the bent portion 5a is brought into contact with the opening edges 2a, 2a by tightening the tongue portion 5, and there may be some gap between the tightening surface and the mounting frame 2.

Next, to explain its action, when the tongue piece part 5 is tightened with the fixing bolt 6, the bent part 5a comes into contact with the opening edges 2a, 2a of the mounting frame 2, and from then on, the tightening force is applied to the bent part 5a. The main body part 3 is effectively pulled toward the mounting frame 2 by using the bending part 5a as a fulcrum, and the bending rigidity in the width direction of the tongue part 5 is increased, so that the width direction of the tongue part 5 is increased. Since bending is prevented, the head of the bolt 6 is tightened while being in surface contact with the tongue portion 5, and thus the tube 1 held by the main body portion 3 is firmly fixed to the mounting frame 2.

Furthermore, as the tongue piece 5 is tightened, a torsional torque is applied due to friction at the seating portion of the bolt 6, but due to the biting of the bent portion 5a of the inwardly inclined opening edges 2a, 2a, Even when torsional torque is applied, the main body 3 does not move.

Furthermore, when the fixing bolt 6 is tightened to the specified position,
The tightening reaction force rapidly increases due to the tensile stress of the main body part 3, and unlike the conventional case in which the tongue part e curves and escapes, it is easy to determine the completion of tightening, and it is possible to maintain a constant tightening force without using a torque wrench. The pipe 1 can be fixed with good work efficiency.

In the above embodiment, the fixing bolt 6 is screwed into the nut member 8 installed in the mounting frame 2, but as shown in FIGS. 9 and 10, the fixing bolt 6 is installed in the mounting frame 2, The tongue piece 5 is inserted into its insertion hole 7.
The nut 11 is inserted into the bolt 6 at
It may also be tightened by more. In this case, the bolt 6 is attached to the opening edges 2a, 2a of the mounting frame 2.
The opening edges 2a, 2a are sandwiched from above and below by the head 6a and the plate 12 that is attached to the bolt 6, and the plate 12 is made of resin or other material. An elastic plate is formed with free pawls 12a, 12a on both sides of the central part, and when the plate 12 is inserted into the bolt 6, the free pawls 12a, 12a engage with the threads of the bolt 6. It is now possible to prevent it from falling out.

(Effect of the invention) As described above, when the present invention is used, the tongue piece can be tightened with the head of the fixing bolt in surface contact with the tongue piece, and the fixing bolt is difficult to loosen and the pipe is vertically attached to the mounting frame. Furthermore, even if a torsional torque is applied to the tongue portion during tightening, the main body portion does not move, and even if the tube is flexible, it has the effect of reliably fixing it in a straight state.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional example, Fig. 2 is a cutaway side view thereof, Fig. 3 is a plan view thereof, Fig. 4 is a perspective view of another conventional example, and Fig. 5 is an example of the proposed fixing device. FIG. 6 is a perspective view of the state in use, FIG. 6 is a cutaway side view thereof, FIGS. 7 and 8 are cross-sectional views taken along the lines - and -, respectively, of FIG. 6, and FIG. 9 is an embodiment in which the configuration of the fixing screw is changed. FIG. 10 is a perspective view of the disassembled state, and FIG. 10 is a cutaway sectional view of the fixing screw portion in the used state. 1...Pipe, 2...Mounting frame, 2a...Opening edge,
3... Main body part, 4... Locking part, 5... Tongue piece part, 5
a...Bending portion, 6...Fixed bottle, 7...Insertion hole.

Claims (1)

[Scope of utility model registration request] A pipe fixing device for fixing a pipe to a mounting frame made of C-shaped steel material, the main body being curved into a substantially U-shape according to the outer diameter of the pipe, and having a locking portion for the mounting frame at one end of the main body; A tongue piece bent outward at a substantially right angle at the other end, and an insertion hole for a fixing bolt for the mounting frame is formed in the tongue piece, the outer end of the tongue piece being attached to the mounting frame. A pipe fixture, characterized in that a pipe fixture is formed with bent parts that abut inwardly inclined opening edges on both sides of the pipe fixture.