DE2261242A1 - METHOD AND TOOL FOR THE ASSEMBLY OF CLAMPS ON LINES AND PIPES MADE OF FLEXIBLE MATERIAL - Google Patents

Description

SUPERi ¹ LEXIO ?, Courbevoie / France

Method and tool for the assembly of clamps on lines and pipes made of flexible material

The invention relates to a method and a tool For mounting clamps on lines and pipes made of flexible material.

For fastening flexible lines or pipes to various connections, it is known to use clamps to use, which consist of two double turns of metal wire and have two loops at their ends, on which a tensile force is exerted to tighten the clamp on the line.

The assembly of such clamps on flexible lines and pipes, however, is particularly important in the case of lines polytetrafluoroethylene poses a certain difficulty,

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because its flow makes the use of clamps dangerous.

Insufficient tight tension does not guarantee a seal because of the lack of elasticity and a too strong one brings with it the danger that the line ruptures due to the flow of the polytetrafluoroethylene.

The aim of the invention is to eliminate this disadvantage by a method that works with any diameter of the wearer ensures the tensioning of the clamp with a constant pressure per unit, which is equal to one predetermined value. It is also possible with this method for mounting on lines with different Diameter to use a single clamp with an appropriately selected length.

The inventive method consists in that to tighten the clamp on the line on the loops a clamp of suitable length against each other a tensile force is exerted, which leads to the diameter of the pipe is proportional.

Another feature of the invention is that the tensile force exerted on the loops contributes to the diameter is proportional to the conduction, the pressure exerted on any part of the wire at any one Diameter of the line is always the same.

Further details of the invention emerge from the following description of exemplary embodiments, wherein reference is made to the accompanying drawing. Show it:

309828/0309 " ³ "

I "ig. Λ a perspective view of a clamp during assembly on a flexible line.

Pig. 1a is a representation of a clamp, the end of which is bent over and cut off.

2 shows a section through an embodiment of a tool for mounting a clamp on a line.

IFIg. Figure 5 is a side view of another embodiment a tool for mounting a clamp on a pipe.

Fig. 1 shows a line 1 made of a flexible ■ material on which a clamp is mounted, which consists of two double turns 2, 2a made of metal wire, in particular stainless steel, and has two loops 4 and 5 at the ends are inserted into one another and on which a tensile force is exerted on the line 1 to tighten the clamp 2, 2a. . -

The loop 4 (Fig.1a) is then turned over, so that it encloses the loop 5 and maintains the tension of the clamp. The length of the clamp is in Appropriate V / eise chosen so that it can be mounted on pipes with different diameters.

Fig. 2 shows an embodiment of a tool for mounting a clamp 2, 2a on a line 1, which consists of a tubular body 6 with two floors 7 »7a, in which a rod 8 is slidably mounted. On this rod, a stop 9 is attached to which one of the ends of a Spring 10 rests, the other end of which on the bottom 7a 4es Body 6 of the tool is applied.

3Ö982S / Ö309

At one of its ends, the rod 8 has a beak 11 into which the loop 5 «ie * ¹ clip 2, 2a is inserted, while the other loop 4 is hooked into a hook 12 which is attached to the body 6. The body and the beak 11 of the rod are each provided with a projection 13 and 14, respectively. With these projections, the beak 11 can be brought closer to the body 6 while the spring 10 is compressed.

After placing the clamp 2, 2a on the line 1, the beak 11 under compression of the spring 10 is the Body 6 approximated, as shown in Fig. 2 with broken lines. Then the loop 5 is attached to the The beak 11 and the loop 4 are suspended from the hook 12.

Then the clamp is slightly tensioned by letting go of the projections 13 and 14, so that the now released Spring between the beak 11 and the hook 12, i.e. between the loops 4 and 5 of the clamp exerts a tensile force, which is proportional to the diameter of the line 1. For this purpose, the tension curve of the spring 10 runs as follows that the force exerted on the clamp is proportional to the diameter of the conduit. That way it's up The pressure exerted by the conduit was always the same for each section of wire for any diameter of the conduit.

For clamping, the tool is rotated in the direction of arrow F until it comes into contact with line 1 comes with the beak 11 held away from the body 6. Here, the loop 4 is on the in Fig. 1a shown way turned over.

Fig. 3 shows another embodiment of the invention Tool that is easier to use.

309828/0309

On the body 6 there is a lever 16 about an axis 15 mounted pivotable. This lever is connected to the beak 11 by a connecting rod articulated at the joints 18 and 19 17 connected.

By lowering the lever 16 in the direction of arrow F. the beak 11 is approached to the body 6 and the spring 10 is compressed. By lifting this lever 16 in the opposite direction Direction, the spring 10 is released and the clamp 2, 2a is tightened on the line 1.

300328 / 03Od

Claims (4)

Claims | M J Procedure for assembling clamps on pipes and tubes made of flexible material for clamps, which consist of two double turns of metal wire that are attached to have two loops inserted into one another at their ends, characterized in that for tensioning the plague the clamp on the line (1) on the loops (4,5) of a shell (2,2a) of suitable length against each other a tensile force is exerted which is proportional to the diameter of the line (1). 2. Tool for assembling clamps in the process according to claim 1, characterized by two organs (11,12), each of which has one the loops (4, 5) are hooked in and those against each other are displaceable and are subject to the action of a tared spring (10) whose tension curve runs as follows, that the tensile force exerted on the loops is proportional to the diameter of the line (1), the on pressure exerted on each part of the wire is always the same for any diameter of the pipe. 3. Tool according to claim 2, characterized by a body (6) in which a rod (8) is displaceable, on which a tared spring (10) acts, which is attached to one side of the rod Stop (9) and on the other side on the bottom (7a) of the body (6) rests, the rod and the body each have an organ (11 or 12) for hanging the loops (4,5) of the clamp (2,2a). 309828/0309 ~ ⁷ " 4. Tool according to claim 3, characterized
characterized in that a lever (16) is pivotably mounted on its body (6) and is connected to the rod (8) by an articulated connecting rod (17). 309828 / Ü3Ü9 Blank page