FR3069167A1 - RESPIRATORY ASSEMBLY FOR AIRCRAFT - Google Patents

Abstract

Respiratory assembly for an aircraft comprising: - respiratory equipment intended to provide a respiratory gas to a user comprising: • one comprising a rigid support and a hull bound to the rigid support, • a harness, • a strap having a grip portion and a portion link, the connecting portion being connected to the harness, • a retaining element connected to a retaining portion of the strap, - a storage device comprising: • a housing having an opening, and • a closure device comprising at least one door, • a biasing device able to act on the door to move it away from the opening when the closure device is in the closed position, • a cooperation part adapted to cooperate with the retaining element for s oppose the action of the biasing element and keep the closure device in the closed position, when the breathing equipment is in the stowed position.

Description

- respiratory equipment intended to supply respiratory gas to a user comprising:

• one comprising a rigid support and a shell linked to the rigid support, • a harness, • a strap having a gripping part and a connecting portion, the connecting portion being linked to the harness, • a retaining element linked to a portion strap retainer,

- a storage device comprising:

A housing having an opening, and a shutter device comprising at least one door, a biasing device capable of acting on the door to move it away from the opening when the shutter device is in the closed position, • a cooperation part able to cooperate with the retaining element to oppose the action of the biasing element and keep the closure device in the closed position, when the respiratory equipment is in the stowed position.

Aircraft breathing kit

Field of the invention

The invention relates to a method for storing respiratory equipment and respiratory equipment for aircraft, said respiratory equipment comprising respiratory equipment, an inflatable harness and a storage element.

In particular, the invention relates to a respiratory assembly for aircraft comprising:

- respiratory equipment intended to supply respiratory gas to a user comprising:

• a rigid support, • a shell linked to the rigid support, the shell having a respiratory cavity and being adapted to be applied to the face of the user around the mouth and nose of the user, • a harness suitable for extend around the head of the user opposite the shell, in order to maintain the shell on the face of the user, • a strap having a grip part and a connecting portion, the connecting portion being linked to the harness,

- a storage device comprising:

A housing adapted to receive the respiratory equipment in a stored position, said housing having an opening, and

- a shutter device comprising at least one door having an internal face and an external face, the shutter device is movable between a closed position in which the shutter device (partially) closes the opening and an open position in which it is (at least in part) away from the opening (to disengage said opening and allow breathing equipment to be removed from the storage device).

Such an assembly is described in document WO2013 / 064856A1. The respiratory equipment usually used by the crew of the aircraft must be put on the pilot's head quickly and safely. This operation should only require one hand, as the other hand is often required for other essential tasks.

For example, if, due to a pressurization failure, the pilot of an airplane must quickly put on his respiratory equipment to provide it with the oxygen necessary to breathe, he must often do so with one hand while his other hand is busy controlling the plane. Thus, the use of an inflatable head harness has been suggested to allow insertion of respiratory equipment with one hand. Generally, the head harness has substantially a dome or annular shape and is diametrically expanded by the introduction of pressurized gas to cause the size of the harness to increase so that it can be positioned on the head of the user. The gas flow is controlled by a valve attached to the breathing equipment and, after enlarging the harness, the breathing equipment is placed against the wearer's face, the harness being extended and spaced from the back of the head. Once the respiratory equipment is correctly positioned, the pressure in the harness is released, which causes the harness to contract and contact the pilot's head, so that the respiratory equipment is well maintained in its correct position. During this time, the other part of the pilot is free to control the aircraft or to perform other tasks that may be necessary.

The strap ensures that when storing breathing equipment in the storage device, the harness is outside the breathing equipment cavity. Thus, the risk of having a harness fold inserted into the respiratory equipment cavity when the harness begins to inflate is reduced, so that the risk of a harness swelling problem is reduced.

The invention aims to provide better security related to the need to put on respiratory equipment in a short time.

Statement of the invention

To this end, in accordance with the invention, the respiratory assembly has the following characteristics:

- the storage device further comprises a biasing device capable of acting on the door to move it away from the opening when the shutter device is in the closed position,

- the respiratory equipment also includes a retaining element linked to a retaining portion of the strap,

- The storage device comprises a cooperation part capable of cooperating with the retaining element to oppose the action of the biasing element and maintain the closure device in the closed position, when the respiratory equipment is in the stowed position.

Thus, when the strap has been used to correctly position the harness relative to the breathing mask, the retaining element keeps the closure device in the closed position. If the harness has not been correctly positioned in relation to the breathing mask, the retaining element does not allow the closure device to be kept in the closed position. The user can thus easily check whether the harness has been correctly positioned thanks to the state of the closure device. In addition, the shutter device must be in the closed state for a pilot to be authorized to take off an aircraft. Security is therefore strengthened.

In various embodiments of the respiratory assembly according to the invention, one can optionally have recourse to one and / or the other of the provisions forming the subject of the dependent claims.

Brief description of the figures

Other characteristics and advantages of the present invention will appear in the following detailed description, referring to the appended drawings in which:

- FIG. 1 illustrates in perspective a respiratory assembly comprising respiratory equipment and a storage device, during a first storage step in accordance with the invention,

- FIG. 2 illustrates in plan view the respiratory assembly, the respiratory equipment comprising a harness placed in a storage position on a respiratory mask, during the insertion of the respiratory equipment in a storage box,

- FIG. 3 illustrates the respiratory equipment with the harness placed in the storage position on the respiratory mask and the respiratory mask placed in a stored position in the storage box,

- FIG. 4 illustrates the respiratory equipment leaving the storage box,

- FIG. 5 illustrates the respiratory equipment in a position of use,

- FIG. 6 illustrates part of the respiratory equipment according to the arrow marked VI in FIG. 2,

- FIG. 7 illustrates the respiratory assembly according to the arrow marked VII in FIG. 3,

- FIG. 8 illustrates the respiratory assembly in accordance with FIG. 7, when the equipment is not correctly stored in the storage box,

- FIG. 9 illustrates on a larger scale a part of FIG. 8,

- FIG. 10 illustrates two alternative embodiments of a retaining element for respiratory equipment,

- FIG. 11 illustrates another embodiment of a respiratory assembly in accordance with the invention and comprising a holding device, in active state, along the arrow marked Xi in FIG. 3,

- FIG. 12 illustrates the embodiment of FIG. 11, in the inactive state.

Detailed description of the invention

Figures 1 to 9 illustrate a respiratory assembly 1 placed in a cabin 9 of an airplane and essentially comprising respiratory equipment and a storage device 30. The respiratory equipment comprises a respiratory mask 10, an inflatable harness 20, a strap 40 and a retainer.

The respiratory mask 10 shown in the figures. 1 to 5 comprises a support 11, a demand regulator 1, a shell fixed to the support 11 and a transparent lens 18.

The support 11 is rigid, supports the shell, and forms a box containing the demand regulator 12. The support 11 comprises two opposite gripping surfaces 11a, 11b. In order to maintain the respiratory mask 10, the user 8 can pinch the support 11 by pressing on the two gripping surfaces 11a, 11b. The gripping surface 11a is part of a lever which can rotate slightly when it is properly pressed.

In the illustrated embodiment, the respiratory mask 10 includes an oronasal piece 14 and an optional eye shield 16, the eye shield 16 being removably attached to the oronasal piece 14. Alternatively, the oronasal piece 14 and the eye shield 16 could constitute an inseparable whole.

As shown in particular in FIGS. 1 and 5, the eye protection screen 16 comprises a transparent lens 18 and a peripheral support 17. The peripheral support 17 has an edge 19 comprising an upper edge part 19a, an edge part lower 19b opposite the upper edge portion 19a and side edge portions extending between the upper edge portion 19a and the lower edge 19b.

The shell comprises the oronasal part 14 and the peripheral support 17.

The respiratory mask 10 has a front side 10a and a rear side opposite the front side 10a. As shown in FIG. 1, the oronasal piece 14 comprises a cavity 13 having an opening in the rear side 10b of the respiratory mask 10. The eye protection screen 16 comprises a cavity 15 having an opening 15a on the rear side 10b of the Respiratory mask 10. In the embodiment, the cavity 15 of the eye protection screen 16 communicates with the cavity 13 of the oronasal part 14 when the eye protection screen 16 is fixed on the oronasal part 14. In the variant where the oronasal piece 14 and the eye shield 16 constitute an inseparable assembly, the cavity 15 of the eye protection screen 16 and the cavity 13 of the oronasal piece 14 permanently communicate with the other and generally there is no separation between the cavity 15 of the eye protection screen 16 and the cavity 13 of the oronasal part 14, so that they form a single cavity.

The opening 15a is surrounded by the peripheral support 17. As shown in FIG. 5, the rear side 10b of the respiratory mask 10 is intended to be applied in a sealed manner to a face 8c of a user 8 in a position of use . In the position of use, the oronasal piece 14 is applied in a sealed manner to the face 8c of the user 8 around the nose and the mouth of the user 8, so that the user 8 breathes the respiratory gas which is in the cavity 13. In addition, in the position of use, the peripheral support 17 is applied to the visgae 8c of the user 8 around the eyes, so that the opening 15a is closed by the face 8c of the user 8. The opening 15a extends substantially in the separation plane extending between the front side 10a and the rear side 10b of the respiratory mask 10.

The respiratory equipment 1 further comprises a gas supply tube 2. The gas supply tube 2 is flexible and includes an upstream end 2a and a downstream end 2b. The gas supply tube 2 is connected at the upstream end 2a to a source of pressurized respiratory gas 4 (in particular oxygen) via a supply line 6 and a valve d 'supply 7. The downstream end 2b of the gas supply tube 2 is connected to the regulator 12, so that the cavity 13 of the oronasal part 14 is supplied with respiratory gas through the regulator 12 according to the demand for the user who breathes.

The harness 20 comprises an upper inflatable tube 22 and a lower inflatable tube 24, each inflatable tube 22, 24 forming a loop having a first end 22y, 24y and a second end 22z, 24z connected to the support 11. As shown in FIG. 5 , in the position of use, each of the upper inflatable tube 22 and lower inflatable tube 24 surrounds the head of the user 8. The regulator 12 comprises a valve for selectively connecting an internal chamber of the inflatable tubes 22, 24 with a source of gas under pressure to inflate the harness 20 when the lever comprising the gripping surface 13a is actuated or to ambient air of the cabin 9 to deflate the harness 20 when the lever comprising the gripping surface 13a is released. In the illustrated embodiment, the source of pressurized gas supplying the inflatable tubes 22, 24 is the source of respiratory gas 4 as described for example in document WO99 / 58197. In an alternative embodiment, the inflatable tubes 22, 24 can be supplied with pressurized gas by an independent source of pressurized gas as described for example in document WO2008 / 017630.

The harness 20 further comprises non-inflatable elements forming spacers 26, 28, each connected at an upper end to the upper inflatable tube 22, away from the first end 22y and second end 22z of the upper inflatable tube 22, and to a lower end to the lower inflatable tube 24, away from the first end 24e and second end 24z of the lower inflatable tube 24. The spacers 26, 28 are made of elastic material, such as a rubber or elastomer material. Preferably, the spacers 26, 28 have a tubular shape of circular section in cross section.

The harness 20 further comprises a lateral strap 27 connected at each of its two ends to the upper inflatable tube 22. The lateral strap 27 extends over the head of the user 8 in the position of use.

The strap 40 comprises a gripping part 42, a first connecting part 44 connected to a connection part 23 of the upper inflatable tube 22 and a second connecting part 46 connected to a connection part 25 of the lower inflatable tube 24. The part grip 42 forms A free end of the strap 40, the second connecting part 46 forms an opposite free end of the strap 40 and the first hooking part 44 is intermediate between the grip part 42 and the second connecting part 46 strap 40.

The strap 40 is advantageously elastically extensible, so that the user 8 can easily exert a tension T on the harness 20 by exerting a pulling force on the grip portion 42 of the strap 40, as illustrated by the arrow F on the figure 2.

The first connecting part 44 is connected to the upper inflatable tube 22 substantially in the middle of the upper inflatable tube 22 between the first ends 22y and second 22z, the connection part 23 being substantially at the top of the loop formed by the upper inflatable tube 22. The second connecting part 46 is connected to the lower inflatable tube 24 substantially in the middle of the lower inflatable tube 24 between the first ends 24e and second 24z, the connection part 25 being substantially at the top of the loop formed by the lower inflatable tube 24. Thus, the tensile force F exerted on the strap 40 causes a substantially uniform tension T on the upper 22 and lower 24 inflatable tubes.

The storage device 30 comprises a housing 32 delimited by a rear wall 38 and a peripheral wall 34. In the embodiment illustrated in FIGS. 1 to 9, the rear wall 38 is intended to rest on the floor of the cabin 9, so that the rear wall 38 forms the bottom of the housing 32. The housing 32 is in communication with the ambient air of the cabin 9 through an opening 36 opposite the rear wall 38.

In the embodiment shown in Figures 1 to 9, the storage device 30 is a storage box. The storage device comprises a closure device 50 having at least one door, preferably two doors 52, 54 hinged with respect to the housing 32 between an open position and a closed position, for selectively closing the opening 36. The doors 52 , 54 each have an internal face 52a, 54a and an external face 54a, 54b. The doors 52, 54 are generally flat and have a contour 55. Preferably, the doors include a passage 56 through which the support 11 extends in the stored position, so that the user can grasp the support 11 of the mask respiratory 10 without opening the doors 52, 54, as illustrated in FIG. 7.

The storage device 30 further comprises a biasing device 60. The biasing device 60 comes to replace or replace the bi-stable spring system usually making it possible to keep the doors 52, 54 in the open position or in the closed position. The biasing device 60 biases each of the doors 52, 54 towards the open position. In the illustrated embodiment, the biasing device 60 comprises a spring 62, 64, preferably a torsion spring, for each of the doors 52, 54, as illustrated in particular in FIGS. 8 and 9, each spring 62, 64 comprises a first portion 62a, 64a bearing against the housing 32 and a second portion 62b, 64b bearing against the respective door 52, 54.

The respiratory assembly 1 also comprises a retaining element 70 held at a retaining portion 48 of the strap 40. The retaining portion 48 is preferably arranged near the gripping part 42.

In order to store the respiratory mask 10 in the storage device 30, as shown in FIG. 1, first, the user 8 maintains the support 13 with a first hand 8a and pulls on the strap 40 with a second hand 8b. Thus, the user 8 pinches the support 13 with the first hand 8a by pressing on the opposite surfaces 11a, 11b on the front side 10a of the respiratory mask 10, pinches the grip part 42 of the strap on the rear side 10b of the respiratory mask 10 and moves his two hands from each other. Consequently, the user 8 simultaneously pulls on the connection part 23 of the first inflatable tube 22 and on the connection part 25 of the second inflatable tube 24 of the respiratory mask 10 away from the respiratory mask 10 and in particular at the gap of cavities 13 and 15.

Then, the second hand 8b of the user 8 preferably follows a substantially semi-circular movement going over the respiratory mask 10 by pulling on the connection parts 23, 25 of the harness 20. Consequently, the user 8 pulls successively on the grip part 42 of the strap 40 far from the front face 10a, above the upper edge 19a and then on the front side 10a near the support 11.

The strap 40 has a length between the gripping part 42 and the connecting part 44 which is long enough to allow the gripping part to be placed on the support 11 when the harness is in the storage position.

Thus, as shown in FIG. 2, the user 8 then pulls on the grip part 42 of the strap 40 and maintains the support 11 with the same hand 8a. The harness 20 is therefore in a storage position in which two upper rest parts 22a of the upper inflatable tube 22 rest on the upper edge part 19a of the eye protection screen 16 and two lower rest parts 22b of the inflatable tube The upper edge 22 rests on the lower edge portion 19b of the eye protection screen 16.

The user 8 exerts the tensile force F on the strap 40 which causes the tension T exerted on the harness 20 between the upper rest parts 22a and the lower rest parts 22b of the upper inflatable tube 22, thus preventing the upper inflatable tube 22 to enter the cavity 15.

In Figures 2 and 3, the rest portion 22a of the upper inflatable tube 22 is shown slightly away from the upper edge 19a of the eye protection screen 16 in order to make the representation more understandable. But in fact, the upper rest parts 22a of the upper inflatable tube 22 rest on the upper edge part 19a of the eye protection screen 16.

Then, the user 8 inserts the respiratory mask 10 into the housing 32 of the storage device 30 while pulling on the strap 40 to maintain the harness in the storage position and places the respiratory mask 10 in the stored position shown in the figure. 3.

In the embodiment shown in Figs. 1 to 9, the rear wall 38 being the bottom wall of the housing 32, when the respiratory mask 10 is in the stowed position, the eye protection screen 16 of the respiratory mask 10 rests on the rear wall 38 of the housing 32 by through the rest parts 22a of the upper inflatable tube 22 which is held between the upper edge 19a of the respiratory mask 10 and the rear wall 38.

As shown in FIG. 3, the respiratory mask 10 is stored in the housing 32 of the storage device 30 in the stored position and the harness is maintained in the storage position on the respiratory mask

10.

Then, the user 8 closes the doors 52, 54 and places the retaining element 70 against a cooperation part 35 of the closure device 30. In the embodiment illustrated in FIGS. 1 to 9, the element retainer 70 is a rod and the cooperation part extends over the external face 52b, 54b of each of the doors 52, 54. The strap 40, in particular the grip part 42, extends through the passage 56.

The retaining element 70 thus keeps the doors 52, 54 closed against the action of the springs 72, 74 g, thanks to the strap 40 which is tensioned and held at its end opposite to the harness 20, such as illustrated in figure 7.

As illustrated in FIG. 8, if the retaining element 70 is not positioned against the cooperation part 35 of the closure device 30, the doors 52, 54 are opened under the action of the biasing device 60 .

The distance between the first connecting portion 44, by which the strap is linked to the harness 20 and the retaining portion 48 by which the strap 40 retains the doors 52, 54 closed via the retaining element 70 must be sufficiently short to avoid the retaining element can be in contact with the cooperation part 35, while the harness 20 is not correctly positioned relative to the respiratory mask 10.

Alternatively, instead of a simple contact between the retaining element 70 and the cooperation part 35, a clipping system could be provided. Preferably, the shape and the color of the retaining element 70 and of the cooperation part 35 correspond to help the user.

When required, the user 8 grasps the respiratory mask 10 by the support 11 and pulls the respiratory mask 10 towards him through the opening 36. The tension in the strap 40 decreases, thus leaving the doors 52, 54 to open.

In the illustrated embodiment, the user 8 then rotates the respiratory mask 10 by pulling the respiratory mask 10 towards him, as shown in the figure. 4. The harness 20 deploys gradually and falls due to gravity. Thus, the harness 20 is kept away from the cavity 15 of the eye protection screen 16.

Then, the user 8 presses on the lever comprising the gripping surface 13a to inflate the harness 20 and then the user applies the respiratory mask 10 on his face 8c, in a position of use. In the position of use, the whole of the retaining device 40 is released from the respiratory mask 10.

As shown in FIG. 5, in the position of use, the strap 40 is still fixed to the harness 20, the part of the strap 40 between the first connecting part 44 and the second connecting part 46 extending opposite the 'rear of the user head and being slightly taut. The part of the strap 40 between the first connecting part 44 and the gripping part 42 is hooked from the connection part 23 of the first inflatable tube 22 outside the part of the strap 40 between the first part of link 44 and the second link part 46.

FIG. 10 illustrates two alternative types of retaining element constituted by hooks 70 ′, 70. The hooks 70 ′, 70 comprise a core 72 and a stop surface 74 extending substantially perpendicular to the core 72. When the 'respiratory equipment is in the stowed position, the core 72 extends through a passage 58 and the stop surface 74 is supported on a cooperation part 35' situated on the external face 52b, 54b of the doors 52, 54. The passage 58 is formed by a hollow cutout 58 in its contour 55 defining a notch 58.

The advantage of having the cooperation part 35, 35 ’extending over the two doors 52, 54 is that the so-called Press-To-Test can only be carried out when the doors are closed.

However, the cooperation part may extend only on the right door 54, in particular in order to make the passage 58 only through a single door 54.

FIGS. 11 and 12 illustrate a holding device 80 making it possible to prevent the doors 52, 54 from being continuously opened when the respiratory mask is used 10. The holding device 80 comprises a hook 82 and an actuating element 84.

As illustrated in FIG. 11, when the respiratory mask 10 is out of the housing 32, a hook 82 is in active position and retains the door 52 in the closed position, an abutment surface 86 of the door 52 abuts against the hook 82. As a variant, another actuating element 88 could similarly retain the door 54 in the closed position by means of another hook and an abutment surface of the door 54.

A button (not shown) located on the external face 52b of the door 52 makes it possible to bring the hook 82 into an inactive position, as illustrated in FIG. 12, so that the door 52 opens to allow storage respiratory mask 10.

In addition, as illustrated in FIG. 12, the presence of the respiratory mask 10 in the housing 32 causes the rotation of the actuating elements 84 and 88, bringing the hook 82 into the inactive position in which it is away from the abutment surface 86 of the door 52. As described above, the retaining element 70 then makes it possible to keep the doors 52, 54 in the closed position.

In the illustrated embodiment, the actuating elements 84, 88 are part of a lock, known per se, cooperating with lugs 85, 89 secured to the support 11 of the respiratory mask, the lugs 85, 89 engaging between the actuating elements 84 and 88.

On the other hand, the hook 82 advantageously has a fusible zone making it possible to ensure that the door 52 does not remain closed.

According to an alternative embodiment, instead of acting on the door 52, the holding device 80 could act on the biasing device 60.

In particular, the holding device 80 could act the second part 62b, 64b of the springs 62, 64 to inhibit the holding device 80 by preventing it from pushing against the respective door 52, 54. Thus, the hook 82 could come to retain the second part 62b, 64b of the springs 62, 64 when it is in the active position and let the second part 62b, 64b of the springs 62, 64 push the doors 52, 54 to the open position when the hook 82 is in the inactive position. This solution would notably have the advantage of not risking the doors 52, 54 to open.

Alternatively, the holding device 80 could act on the first part 62a, 64a of the springs 62, 64 by releasing the first part 62a, 64a of the springs 62, 64 relative to the housing 32. One could for example provide an intermediate element between the first part 62a, 64a of the springs 62, 64 and the housing 32, this intermediate element being mobile and / or retractable.

According to another alternative embodiment, instead of the retaining device 80, it is the retaining element 60 which could act on the biasing element 60. Thus, the cooperation part 35 in contact with which the retaining device comes stress 60 could be located on the stress device 60 instead of the shutter device 50.

Of course, the invention is in no way limited to the embodiment (s) described for illustrative and nonlimiting purposes. Thus, instead of being pivotally mounted on the housing 32, the doors 52, 54 could slide relative to the housing 32.

Claims (14)

1. Respiratory assembly (1) for aircraft comprising: - respiratory equipment intended to supply respiratory gas to a user comprising: • a respiratory mask (10), the respiratory mask comprising a rigid support (11) and a shell (14, 17) linked to the rigid support (11), the shell (14, 17) having a respiratory cavity (13, 15) and being adapted to be applied to the face of the user around the mouth and the nose of the user, • an inflatable harness (20), adapted to extend around the head of the user when opposite the shell (26), in order to maintain the shell (26) on the face of the user, • a strap (40) having a gripping portion (42) and a connecting portion (44), the portion of link (44) being linked to the harness (20), - a storage device (30) comprising: • a housing (32) adapted to receive the respiratory equipment in a stored position, said housing (32) having an opening (36), and • a closure device (50) comprising at least one door (52; 54) having an internal face (52a; 54a) and an external face (52b; 54b), the closure device is movable between a closed position in which the closure device (partially) closes the opening (36) and a position open in which it is (at least in part) away from the opening (to disengage said opening and allow breathing equipment to be removed from the storage device), said breathing assembly being characterized in that: the storage device (30) further comprises a biasing device (60) capable of acting to move the door (52; 54) away from the opening (36) when the shutter device is in the closed position, - the respiratory equipment also comprises a retaining element (70) linked to a retaining portion (48) of the strap (40), - the storage device comprises a cooperation part (35) able to cooperate with the retaining element (48) to oppose the action of the biasing element (60) and maintain the closure device ( 50) in the closed position, when the breathing equipment is in the stowed position. 2. Breathing assembly according to claim 1, in which the cooperation part (35) extends on the external face (52b; 54b) of the door (52; 54) and abuts against the retaining element (70), when the breathing equipment is in the stowed position. 3. Respiratory assembly according to the preceding claim, in which: - the shutter device (50) has a passage (56, 58), when it is in the closed position, and - the strap (40) extends through the passage (56, 58) of the closure device and the retaining element (70) is a rod extending against the external face (52b; 54b) of the door (52; 54). 4. Breathing assembly according to claim 2 wherein the retaining element forms a hook. 5. Respiratory assembly according to the preceding claim, in which: - the shutter device (50) has a passage (58), when it is in the closed position, and - The hook comprises a core (72) and a stop surface (74), when the respiratory equipment is in the stowed position, the core (72) extends through the passage (58) and the surface of stop (74) is supported on the external face (52b; 54b). 6. Breathing assembly according to any one of claims 3 to 5 in which the door (52; 54) is generally flat and has an outline (55), the door (52; 54) has a hollow cutout (notch) (58) in its outline (55) forming said passage (58). 7. Respiratory assembly according to any one of the preceding claims, in which: - Said door is a first door (52), the shutter device further comprises a second door (54), and - The biasing device (60) is able to act on each of the first door (52) and second door (54) to move them away from the opening (36) when the shutter device (50) is in the closed position. 8. Respiratory assembly according to any one of Claims 1 to 6, in which: - said door is a first door, (52) the shutter device further comprises a second door (54), - The biasing device (60) is only able to act on the first door (52) to move it away from the opening (36) when the shutter device (50) is in the closed position. 9. Respiratory assembly according to any one of the claims in which: the storage device (30) further comprises a holding device (80) having an active state and an inactive state, - The holding device (80) is able to oppose the action of the biasing element (60) and keep the shutter device (50) in the closed position, when the holding device (80) is in the active state, - the holding device (80) is in the active state when the respiratory mask (10) is (worn by the user) out of storage, and - the holding device (80) is in the active inactive state when the respiratory equipment (10) is in the stowed position. 10. The respiratory assembly of any one of the claims wherein the retaining member inhibits the biasing member (60) when it cooperates with the cooperating part. 11. Breathing assembly according to the preceding claim wherein the cooperation part is linked to the housing. 12. Respiratory assembly according to any one of the preceding claims, in which: - the requesting element (60) has an active state and an inactive state, - the biasing element (60) is in the active state when the respiratory equipment is in the stowed position, - the biasing element (60) is in the inactive state when the respiratory equipment is (worn by the user) out of storage. 13. Breathing assembly according to any one of the preceding claims wherein the door (52; 54) is pivotally mounted on the housing 5 (32). 14. Respiratory assembly according to any one of the preceding claims, in which: - the assembly further comprises a supply valve (7) and a fluid supply duct (2) extending between the supply valve (7) 10 and the respiratory mask (10), - The respiratory assembly is adapted to close the supply valve (7) when the door (52) closes (at least partially) the opening (36) and open said supply valve (7) when the door (52 ) is away from the opening (36).