FR2542494A1 - PROTECTIVE COMBINATION, ESPECIALLY FOR USE IN IRRADIATED ATMOSPHERE - Google Patents

Abstract

PROTECTIVE COVERALL, USED IN PARTICULAR IN IRRADIATED ATMOSPHERE, INTENDED TO BE FILLED WITH A GAS UNDER PRESSURE AND INCLUDING A SKIN MADE OF A RELATIVELY FLEXIBLE WATERPROOF MATERIAL, CHARACTERIZED IN THAT IT CONTAINS, ON THE ONE PART, AT LEAST ONE DEVICE OF GAS SUPPLY (VALVE AND / OR REGULATOR) 6 AND AT LEAST ONE GAS OUTLET DEVICE WITH NON-RETURN VALVE THAT ARE FIXED TO THE SKIN OF THE SUIT AND, ON THE OTHER HAND, A BRANCHED NETWORK OF CONDUITS 13, 15, 16 SOLIDARITY FROM THE SKIN OF THE SUIT AND EXTENDING FROM THE FEEDER 6 TO THE DIFFERENT PARTS OF THE SUIT WHERE THE GAS SUPPLY IS DESIRED.

Description

Protective suit, usable in particular in atmospheres-

irradiated sphere.

  The present invention relates to improvements

  protective clothing, use

  in particular in an irradiated atmosphere, intended to be filled with a gas under pressure and comprising a skin made of a relatively flexible waterproof material. In such combinations, the air under low pressure which is injected there (usually in the ventral or dorsal region) circulates poorly and the aeration of the body of the user is poor especially towards the extremities of the limbs This results in a bad

  evaporation of perspiration and a lack of comfort-

for the user.

  One solution to this problem consisted in distributing the air distribution within the suit by means of a tube connected to the air supply device of the suit and having ramifications

  in the arms and legs of the jumpsuit This you -

  air distribution bulb is supported by a system

  harness teme that the user must don before

  put on the suit and connect it to the

  positive air supply of the suit.

  Of course, the presence of the harness system

  is inconvenient for the user and the presence of rami-

  tubing in the sleeves and legs of the suit is also a nuisance, despite

  the usual size of this type of clothing.

  In addition, the harness system and the branched tubing undergo, after each use, a cleaning and decontamination process.

  long and costly, further requiring a stock of material

  important while the suit itself is not reused and is discarded 1 Therefore, the harness system currently used is a constraint as well

  material than financial that it would be desirable to

  eliminate. The invention therefore essentially aims to remedy the aforementioned drawbacks of the arrangement

  and propose a new combination arrangement

  which solves these problems and better satisfies

various technical requirements.

  For these purposes, a protective suit according to the invention is essentially characterized by the fact that it comprises, on the one hand, at least one gas supply device (tap and / or regulator) and at

  minus one gas outlet device with check valve

  return which are fixed to the skin * of the suit and, on the other hand, a branched network of conduits integral with the skin of the suit and extending from the supply device into the different

  parts of the combination where the gas supply is desi-

  rée. Thanks to these provisions, the harness system

  used until now is purely and simply eli-

  mined: the user only needs to coat the single

  combination In addition, no additional handling

  do not have to be silent to connect the feeding device

  air mentation of the suit to the branched tubing

  trusted, since this connection is permanently ensured.

  Finally, the whole remains of a low cost, which automatically

  throw the suit away after use and avoid

decontamination process.

  Advantageously, the conduits are delimited by bands having the form of the aforesaid branched network and attached in a sealed manner to the interior surface

of the combination skin.

  Therefore, the suit retains all its flexibility, on the one hand, and it can be made of

2542-494

3.

  relatively inexpensively, on the other hand.

  However, to avoid jamming the con-

  picks in particular at the location of the joints of the body and especially of the limbs and to therefore ensure a regular supply of air, the pipes of the branched network are reinforced, at least at the level of S joints, by a semi-rigid reinforcing member and flexible; this reinforcing member can be constituted by a

  braid or bundle of semi-rigid and flexible rods

wheat.

  Advantageously, both to simplify the

  manufacture of the suit and to reduce to a mini-

  mum the discomfort brought to the user, the device of-

  the gas supply and the branched network of pipes are arranged in the front part or the ventral part of the suit, and the gas outlet device is arranged in the rear or back part of the suit.

  According to a simple embodiment, the combination

  naison according to the invention is constituted by the as-

  edge-to-edge appearance of two cut shapes, previously

  equipped with supply and output devices

  tie gas, branch network of pipes and others

  accessories Preferably then, one of the forms

  cut or anterior shape receives the feeding device

  mentati on in gas and the branched network of conduits and the other cut or posterior form receives the

gas outlet device.

  The invention will be better understood on reading

  the following description of a preferred embodiment

  d, given only as an illustrative example

  in this description, reference is made to the accompanying drawings

on which ones:

  Figures 1 and 2 show a combination of

  its according to the invention, seen from the outside respect-

  vement front and back, Figures 3 and 4 show two cut shapes, respectively anterior and posterior,

  allowing, once united to each other, to constitute

  kill the combination of figures 1 and 2, the face of these shapes intended to be turned towards the inside of the combination being only visible, and figure 5 is a section along the line V-V

in Figure 3.

  Combination 1 shown externally in the

  figures l and 2 is an integral combination with this

  ghoul 2 made of a waterproof material suitable for the intended applications, for example polyvinyl chloride. On the front side of the suit (see FIG. 1), the hood, provided with a safety strip 3 a, is transparent at least in part (at 3) and a pipe 4 for supplying fresh air under pressure, fitted with a pressure reducing valve 5 fixed to the skin of the suit, opens

  (in 6) inside the suit.

  On the rear side of the suit (see fig.

  re 2) there is an opening 7 which can be closed for example using a zipper and two air outlets with non-return valve located for example in the

  hood (exit 8) and in the dorsal region (exit 9).

  To provide good ventilation for the whole

  of the user's body, a branched network 10 of con-

  expanded air distribution lines are provided inside

  -length of the suit and extends from the orifice

  6 to the arms and legs of the suit.

  According to the invention, this branched network 10

  of air distribution pipes is integrated into the com-

  pairing, as shown in Figure 3, and, for the purpose

  to facilitate manufacturing, the combination is

  preferably killed in the following manner.

  Two shapes are cut from a sheet of suitable flexible material, namely an anterior shape 11 (Figure 3) and a posterior shape 12 (Figure 4) both having the outline of the entire combination. Ca previous form 11 is provided with the air inlet orifice 6 and is equipped with the pressure reducing valve fixed on its outer face On its inner face visible in Figure 3, bands, which can be made of the same material as the skin of the suit, are attached and fastened in any suitable known manner

  those skilled in the art; for example by thermal welding.

  This welding is carried out on the two longitu-

  stripes, between which edges the material is not stretched to be able, in use, to stretch and form a duct for air, as shown

in Figure 5.

  Two strips 13 are arranged in a V from

  -orifice 6 to extend into the lower cut-outs-

  res 14 which will become the legs In the same way,

  a strip 15 extends from the orifice 6 in the direction

  tion of the neck and divides into two veins 16 extending in the lateral cutouts 17 which will become the arms. The posterior shape 12 has substantially the

  same outline as shape 11 and is formed by

  cutting, in the same way This form is equipped with the zipper 7 and the outlets 8 and 9 with a valve already mentioned, these members being fixed by welding or

  bonding to the material of the form 12.

  The two shapes 11 and 12 are then presented face to face and are joined together along

  their peripheral edge, for example by thermal welding

  under the action of an electromagnetic wave field.

  The manufacturing process which has just been described.

  crit is particularly advantageous because all the de-

  cuts and all assemblies are made flat to

  from sheets and flat strips.

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  To avoid crushing the distribution lines

  air distribution, in particular at the level of the joints, provision is made to strengthen the pipes, either locally,

  either over their entire length, using elements

  reinforcing magpies; for example, braids or bundles of flexible metal or plastic rods can be introduced into the conduits, as shown in 18 in FIG. 5 Reinforcement elements can also be introduced into the conduits.

  made up of elastic wire wound in a helix.

  As it goes without saying and as it results from

  their already from the above, the invention is in no way limited to those of its modes of application which have been

  more specifically envisaged; she embraces it,

milk, all variants.

Claims (8)

  1 Protective suit (1), usable no-   especially in an irradiated atmosphere, intended to be filled with a gas under pressure and comprising a skin made of a relatively flexible waterproof material, characterized   in that it comprises, on the one hand, at least one provision   gas supply (tap and / or regulator) (5, 6) and at least one gas outlet device with valve   anti-return (8, 9) which are attached to the skin of the combi   naison and, on the other hand, a branched network of conduits (13, 15, 16) integral with the skin of the suit and   extending from the supply device (6) to   that in the different parts of the combination o gas supply is desired.   2 Combination according to claim 1, charac-   that the lines are delimited by   bands having the form of the aforesaid branched network and rap-   worn tightly on the inner surface of the combination skin.   3 Combination according to claim 1 or 2, characterized in that the branched network pipes are reinforced, at least at the joints,   by a semi-rigid and flexible reinforcement member (18) corn.   4 Combination according to claim 3, charac-   terized in that the reinforcing member (18) is   consisting of a braid or a bundle of semi-stems rigid and flexible.   Combination according to any one of claims 1 to 4, characterized in that the gas supply device (5, 6) and the branched network of pipes (13, 15, 16) are arranged in the front part   or ventral part of the suit and in that the   positive (8, 9) gas outlet is arranged in the par-   back tie or back part of the suit.   6 Combination according to any one of the re-   vendications 1 to 5, characterized in that it is cons-   formed by the joining edge to edge of two shapes   cut (11, 12), previously provided with gas supply and outlet devices, the branched network of pipes and other accessories.   7 Combination according to claims 5 and 6,   characterized in that one of the cut shapes or   previous form (11) receives the feeding device   tion in gas and the branched network of pipes and in this   that the other cut shape or posterior shape (12) represents   receives the gas outlet device.   8 Combination according to any of the 're-   vendications 1 to 7, characterized in that the combination   bran is made from a flexible poly- vinyl chloride   9 Combination according to any one of the re-   vendications 6 to 8, characterized in that it includes an introduction opening and closing means   (7) located on the posterior cut shape (12).