EP1442767B1 - One-piece protective garnment - Google Patents

Abstract

The suit (100) can be connected to an air supply unit via a supply line (11) and features a hood-like head section (1), which is closed at the front by a visor-like window (3). The hood comprises an inner hood and an outer hood, which are connected to each other at least on the edge side. The inner hood side facing the window features several air exit openings. The air supply unit comprises a blower (102) and a filter (103).

Description

Technical area

The invention relates to a one-piece personal protective suit for protection against chemical, bacteriological and / or radioactive media, which is connectable via a connecting line with an air supply unit.

Such one-piece protective suits are made of, for example WO 01/41873 known. They consist of a coverall-like suit made of a flexible material and comprise a hood forming the breathing mask head part, which is closed on the front side by a Visierartiges window.

In known one-piece protective suits the air supply of the person to be protected is carried out either by means of bottled air or by means of portable blower whose suction side is connected to a filter port and the pressure side via a connecting line to the interior of the protective suit. In this case, the air flow is blown through a corresponding, arranged at the back of the protective suit connection in the protective suit and enters the hood-shaped head part. The injected air creates an overpressure throughout the protective suit, which prevents the ingress of toxins even in the event of any leaks in the suit.

In order for the person to be protected to be supplied with defined air for breathing, the entire head part is made helmet-like by means of stiffening elements or the overpressure in the protective suit is chosen so that the air flow inflates the head part into a deployed state.

A disadvantage of the known personal protective suits in particular that relatively large amounts of air must be injected into the respective protective suit, which makes depending on Luftversorgungseinheit- either a more frequent, very expensive change of oxygen or air bottles or the use of relatively heavy and expensive blower ,

Presentation of the invention

The invention has for its object to provide a personal protective suit, in whose intended use smaller amounts of air can be injected into the suit, as this is required for comparable known protective suits.

This object is achieved by the features of claim 1. Further, particularly advantageous embodiments of the invention disclose the dependent claims.

The invention is based essentially on the idea of double-walled form the hood-shaped head part at least in some areas and to use the resulting gap as an air duct, which specifically supplies the fresh air needed for breathing the facial area of the person to be protected. The air duct is connected via a connecting line to the air supply unit and has in the facial area of the person to be protected on air outlet openings, via which the fresh air preferably exits above or laterally from the face.

Since the air is stowed within the air channel through the relatively small air outlet openings, resulting in the air duct overpressure, which leads to an inflation of the existing inner and outer hood hood-shaped head part. The inflated hooded head portion therefore forms in conjunction with the visor-like, e.g. window made of a plastic plate a self-supporting headboard, within which the head of the person to be protected is preferably freely movable.

It has proven to be advantageous if the inner and the outer hood are connected to each other such that at least three substantially mutually parallel air channels emerge, which extend from the back of the head above the skull of the person to be protected and end at the air outlet openings ,

The personal protective suit according to the invention has proven itself especially in protective suits that can be used once, because the hood system can be produced very inexpensively and thus the price of the personal protective suit according to the invention can be kept low compared with known disposable suits.

If it concerns a protective suit which can only be used once, a mechanical connection for the detachable connection of the head part to the connecting line of the air supply unit should be provided on the hood-shaped head part in order to be able to use the air supply unit several times.

Brief description of the drawings

Fig.1

die Seitenansicht eines ersten Ausführungsbeispieles eines erfindungsgemäßen Personenschutzanzuges bei seiner bestimmungsgemäßen Verwendung;

Fig.2

den Schnitt durch das kapuzenförmige Kopfteil des in Fig.1 dargestellten Personenschutzanzuges;

Fig.3

eine räumliche Darstellung des in Fig.2 wiedergegebenen Kopfteiles;

Fig.4

einen Schnitt durch das in Fig.2 dargestellte Kopfteil entlang der dort mit IV-IV bezeichneten Schnittlinie unter Weglassung der zu schützenden Person;

Fig.5

eine Vorderansicht des in Fig.2 dargestellten kapuzenförmigen Kopfteiles;

Fig.6

eine Rückansicht des in Fig.2 dargestellten kapuzenförmigen Kopfteiles und

Fig.7

die Seitenansicht eines zweiten Ausführungsbeispieles eines erfindungsgemäßen Personenschutzanzuges.

Further details and advantages of the invention will become apparent from the following with reference to figures explained embodiments. Show it:

Fig.1

the side view of a first embodiment of a personal protective suit according to the invention in its intended use;

Fig.2

the section through the hood-shaped head portion of the protective suit illustrated in Figure 1;

Figure 3

a spatial representation of the reproduced in Figure 2 headboard;

Figure 4

a section through the head portion shown in Figure 2 along the designated there IV-IV section line, omitting the person to be protected;

Figure 5

a front view of the hood-shaped head part shown in Figure 2;

Figure 6

a rear view of the hood-shaped head part shown in Figure 2 and

Figure 7

the side view of a second embodiment of a personal protective suit according to the invention.

In FIG. 1, 100 designates a personal protection suit according to the invention, in which a person 2 to be protected (FIG. 2) is located. The protective suit 100 comprises a hood-shaped head part 1, which via a hose 11 with a worn over the suit Blower unit 102 is connected. The blower unit 102 sucks in air from the surrounding space via a filter 103.

The hood-shaped head part 1 is at the front through a sight-like window 3, e.g. Made of a anti-fog resistant plastic, sealed.

The hood-shaped head part 1 is double-walled (Figure 2), such that an inner hood 4 and an outer hood 5 is formed between which air ducts 6-8 extend (Figure 4), the edges glued together and sections of seams 9 together are connected. As a result, a total of three air channels 6-8 are formed in the illustrated embodiment. These extend from a rear side 101 of the head part 1 arranged on the neck side connecting piece 10 which is connected to the hose 11 for supplying the fresh air, over the head 12 of the person to be protected 2 to the air outlet openings 13, which above and to the side of the face area 14 of the person 2 are arranged (Figure 3). The course of the air flow within the head part 1 is indicated in FIGS. 2-4 and 6 with arrows 15.

The air channels 6-8 are formed such that the inner hood 4 exerts no compression on the outer hood 5.

On the neck side, 19 air outlet valves 16 are provided above an inner collar (Fig.6).

The protective suit 100 according to the invention, which can consist of disposable suits made of the commercially available Tyvec C or F material from DuPont, for example, has a single opening 17 (FIG. 5) via which the person 2 to be protected enters the protective suit 100 or this strikes off. The opening 17 is a arranged below the hood-shaped head part 1, at shoulder height transversely from one to the other side extending opening which is closed by means of a zipper 18 and can then be sealed.

The person to be protected 2 rises to put on the protective suit 100 first in the protective suit 100 as in a bag and strips it from the bottom over the legs and the trunk over to the shoulders. After connection of the hose 11 of the blower unit, not shown, to the connecting piece 10, the blower unit 102 is turned on and the head part 1 is applied. The zipper 18 is then completely closed and sealed.

By means of the air outlet openings 13 arranged above and to the side of the facial area 14, a fresh air supply in the facial area 14 is guaranteed.

Despite arranged in the neck area inner collar 19 with stretchable cuffs, preferably from the suit material, resulting from the effluent from the air outlet openings 13 air throughout the protective suit 100, a slight overpressure. This overpressure serves to avoid the movement-dependent intrinsic negative pressure, which under certain circumstances would lead to an impermissible insufflation of contaminated outside air.

Of course, the invention is not limited to the embodiment described above. For example, it is also possible to place the air outlet valves in the area below the window 3 of the hood-shaped head part.

Furthermore, as can be seen from FIG. 7, the hose line 11 can also lie within the protective suit 100 and the blower unit 102 under to be worn in the suit. In this case, the filter 103 is screwed through an opening of the protective suit to the blower unit 102.

LIST OF REFERENCE NUMBERS

1

hooded headboard, headboard

2

person

3

window

4

interior hood

5

Integral hood

6-8

air ducts

9

seam

10

connecting branch

11

Hose line, connecting line

12

head

13

Air outlet openings

14

facial area

15

Arrow, airflow

16

air outlet valve

17

opening

18

Zipper

19

inner collar

100

Personal protection suit, protective suit

101

back

102

blower unit

103

filter

Claims (8)

1. One-part person protection suit for protection against chemical, bacteriological and/or radioactive media, which can be connected to an air supply unit via a connection line (11), wherein

   a) the person protection suit (100) comprises a hood-shaped head part (1), which consists of a flexible material and is closed at the front by a visor-like window (3);
   characterised in that

   b) the hood-shaped head part (1) is configured so as to be double-walled at least in part regions in such a way that an inner hood (4) and an outer hood (5) are formed and are connected to one another at least at the edge;

   c) the inner hood (4) has, on its side facing the visor-like window (3), a plurality of air discharge openings (13),

   d) the connection line (11) connected to the air supply unit is connected to the air channel (6-8) formed by the inner and outer hood (4, 5), so that, upon proper use of the person protection suit (100), the airflow (15) arrives from the connection line (11) via the air discharge openings (13) into the face region (14) of the person (2) to be protected.
2. One-part person protection suit according to claim 1, characterised in that at least some of the air discharge openings (13) are arranged above the face region (14).
3. One-part person protection suit according to claim 1 or 2, characterised in that the inner and the outer hood (4, 5) are connected to one another in such a way that at least one air channel (6-8) is produced, which extends from the rear (101) of the head part (1) over the head (12) of the person (2) to be protected into his face region (14).
4. One-part person protection suit according to claim 3, characterised in that the inner and the outer hood (4, 5) are connected to one another in such a way that at least three air channels (6-8) arranged substantially parallel to one another are produced, which extend from the rear (101) of the head part (1) to the face region (14) of the person (2) to be protected.
5. One-part person protection suit according to any one of claims 1 to 3, characterised in that a mechanical connecting piece (10) for the detachable connection of the head part (1) to the connection line (11) of the air supply unit is provided on the hood-like head part (1).
6. One-part person protection suit according to any one of claims 1 to 5, characterised in that the air supply unit comprises a fan unit (102), which is connected to at least one filter (103).
7. One-part person protection suit according to claim 6, characterised in that the hose line (11) and the fan unit (102) are arranged over the protection suit (100).
8. One-part person protection suit according to claim 6, characterised in that the hose line (11) and the fan unit (102) are arranged under the protection suit (100) and the protection suit (100) has an opening, by means of which the filter (103) can be screwed from outside into the fan unit (102).

Images