FR2844738A1 - DEVICE FOR CUTTING ELBOWS IN ION INSULATION PIPES. - Google Patents

Abstract

Device for quickly and precisely cutting elbows in armaflex pipes (registered trademark). The invention relates to a device for making pipe isos which follow one another and in the desired direction, on one and the same pipe. in the shape of "U", of a width (9) at least equivalent to the diameter of the pipe to be cut, to allow the pipe to be able to slide better. Equipped with side walls, provided with successive notches in sawtooth, of a height (10) at least equivalent to the diameter of the pipe to be cut, to allow better support during the partial cutting of the pipe. These sawtooth notches will be lined with stiff PVC reinforcements (7) to allow the knife to slide better , and will be based on the rigid PVC bar (8) which will define the end of the cuts and will be located along the lengths of each side of the profile. These same notches will define the cutting angles. This cutting device - elbows is intended for the field isolation industrial ation.

Description

-I The present invention relates to a device, pou-r cut elbows

  of armaflex piping (registered trademark), 32mm thick. It is a rubbery material and

  malleable, used in the field of industrial insulation.

  The cutting of the elbows is traditionally carried out in the following manner; on a flat surface, cut out the segments, one by one, with a knife, glue each surface of the segments obtained, with contact adhesive 10, provided for this purpose, after a few moments, assemble the different segments together We can practically never obtain a 90 elbow. It will remain approximate. In addition, once assembled, the elbows 15 have obtuse angles, which will not facilitate their mounting on the piping to be insulated. Added to this is the disadvantage that if there are several successive elbows on the piping to be insulated, it will be necessary to cut them separately, as well as to mount them one by one g0 This process has an obvious lack of precision The device according to the invention makes it possible to remedy this drawback A device for quickly and precisely cutting elbows in pipes of 'armaflex (registered trademark) A "U" shaped profile provided with side walls provided with successive sawtooth notches, the bases of which will rest on the rigid PVC bar which runs along the profile at the bottom on each side, define the angles for cutting the pipe By sliding the pipe inside the profile, we will place at the notches the parts of the pipe to be cut. By briefly sliding the knife at the chosen notches, according to the ISO that we want to obtain, we

  will get a partial cut of the pipe.

  We will then only have to glue and fold the pipe at the level of the cuts obtained, to see that the

desired elbow is complete.

  The accompanying drawings illustrate the invention FIG.l / shows the invention, perspective view, template with 4 notches for small diameters -2 FIG. 2 / represents the armaflex pipe (14) (registered trademark), ready to be cut using the knife (13) which will be successively slid over the rigid PVC edges, sawtooth notches (7 ) to the rigid PVC bar (8) which will mark the end of the cuts. FIG. 3 / represents the cutouts using the template with 4 notches

Profile view.

  FIG. 4 / represents the armaflex pipe (registered trademark), once

  glued and folded down, according to the cuts obtained.

  FIG. 5 / represents the invention, perspective view template with 5 notches for large diameters FIG. 6 / represents the armaflex pipe (registered trademark) (14),

ready to be cut.

  The principle remains the same at 4 (for small diameters), as at 5 notches (for larger diameters) FIG. 7 / represents an example of cuts that can be obtained

  on a pipe, turning it yes.

  FIG. 8 / represents a complete example of successive bends 20 on the same pipe, once glued and folded down

  Unlike the cutout illustrated in fig.lOetll.

  Device which comprises, according to a first characteristic, a template in the shape of a "U" with a length of 0.50 meters, _ of a base with a width (9) at least equivalent to the diameter of the pipe to be cut, so that the pipe can

slide easily.

  walls of a height (16) which will be at least equivalent

  to the diameter of the pipe to be cut, to reinforce the stability of the pipe.

  and on these walls, serrated notches, the height (10) of which will be equal to the dimension of the diameter of the

pipe to cut.

  On each side of this base, on which the insulation pipe will rest, these several sawtooth notches, which by their obtuse angles, will define the degree of the angles

cutting.

  For insulation pipes with a diameter between 34 and 48 mm, the elbow cutter will have 4 notches of 300 which follow 40 (1.2.3.4), to cut an elbow at 90, and another notch of 50, placed at the continuation (5) for a obtuse elbow at 450, followed by a last notch (6) this being optional and simply showing that the degrees can be extended by

  using different notches (fig.l).

  -3 For pipes with a diameter between 60 and 140mm the elbow cutter will have 5 notches of 240 which follow each other (1.2.3.4.5) for a 90 elbow and another notch of 500 placed after (6) for a elbow obtu at 450. (fig.5) The notches are fitted with rigid PVC sheet protectors (fig.l n07) which allows the knife to slide more easily when partially cutting the pipe At each end of the elbow cutter , there are reinforcements

  to a Of, for the rigidity of the structure (fig.l n012).

  The elbow cutter also includes at the bottom, on each side, along the lengths, a rigid PVC plate, which will delimit the end of the cuts; That is to say that it will be the basis of the notches

serrated.

  With a height of 4cm for the elbow cutter with 4 notches (fig.l n015) and a height of 5cm for the elbow cutter with 5 notches (fig.5 nf15) The insulation pipes are generally two meters length. Thanks to this template, we can now cut elbows 20 and work pipe iso over the entire length and in the desired direction, simply by turning the pipe in the direction of the desired angle (fig. 7) and successively cutting the pipe at each notch, depending on the elbow that we want to obtain _ from diameter 34 to 48 mm: 4 notches (l.2.3.4) of 30 for a 90 elbow and a notch of 50 placed after for a 450 bend, followed by a final optional notch (6) showing that the degrees can be extended by using

different notches.

  _ of diameter 60 mm and beyond; 5 notches (1.2.3.4.5) of 24 for a 90 elbow and a notch of 50 placed after

for a 45 ° elbow.

  After this step of partially cutting the pipe, all that remains is to put the glue, using a brush, in the notches obtained (fig.3); wait a few moments for the contact adhesive to dry; take the insulation pipe at each end and simply fold it down according to the cuts obtained (fig. 4 and fig. 8) Now, whatever the diameter of the insulation pipe to be cut 4O and the iso that we want to obtain, the principle

will remain the same.

  While being easy to use, this device ensures the precision of the cuts as well as the accuracy of the result.

I * i2844738 -4

Claims (1)

CLAIMS.   l) Device for cutting elbows in insulation pipes, characterized in that it comprises a U-shaped profile of variable width (9), which tends to receive the pipe to be cut and which will be bordered with notches (10) defining the cutouts to perform.   2) Device according to claim 1, characterized in that it comprises a U-shaped profile with a width (9) at least equivalent to the diameter of the pipe to be cut   to allow the hose to slide better.   Provided with side walls of a height (l6) at least equivalent to the diameter of the pipe Provided with successive sawtooth notches, of a height (l0) at least equivalent to the diameter of the pipe to be cut, to allow better maintenance   during the partial cutting of the pipe, and the degrees of which will be variable.   3) Device according to claim 2, characterized in that it comprises these sawtooth notches, which will be bordered with rigid PVC reinforcements to allow the knife to slide better when partially cutting the pipe, and which will have for base 15 the rigid PVC bar which will mark the end of the cuts; it will be located on the lengths, on each side of the profile (8). These same notches will define the cutting angles. 4) Device according to claim 1 or 2, (fig.5), characterized in that it comprises 5 consecutive notches (1.2.3.4.5) of 24 to obtain a bend at 900, and a notch 20 of 50 placed after (6), to obtain an obtuse bend at 450 on the pipes having   a diameter starting from 60mm and which can be extended beyond.   ) Device according to claim 1 or 2, (fig.l), characterized in that it has 4 consecutive notches (1.2.3.4) of 30 to obtain a 90 elbow, and a notch of 50 placed after (5), to obtain an obtuse elbow at 450, followed by a final notch (6), remaining optional, simply showing that the degrees can be extended beyond, by using different notches; Measures for pipes with a diameter ranging from 34 to 48mm.