EP3531006B1 - Protective hood with pivoting attachment system for gas cylinder - Google Patents

Protective hood with pivoting attachment system for gas cylinder Download PDF

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Publication number
EP3531006B1
EP3531006B1 EP19155373.4A EP19155373A EP3531006B1 EP 3531006 B1 EP3531006 B1 EP 3531006B1 EP 19155373 A EP19155373 A EP 19155373A EP 3531006 B1 EP3531006 B1 EP 3531006B1
Authority
EP
European Patent Office
Prior art keywords
fingers
hood
finger
cowling
hanging device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19155373.4A
Other languages
German (de)
French (fr)
Other versions
EP3531006A1 (en
Inventor
Antoine Frenal
Renaud Ligonesche
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Publication of EP3531006A1 publication Critical patent/EP3531006A1/en
Application granted granted Critical
Publication of EP3531006B1 publication Critical patent/EP3531006B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/06—Closures, e.g. cap, breakable member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0639—Steels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0646—Aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0648—Alloys or compositions of metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/0157—Details of mounting arrangements for transport
    • F17C2205/0165—Details of mounting arrangements for transport with handgrip
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/0188—Hanging up devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0308—Protective caps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0338—Pressure regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/011—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/014—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/016—Noble gases (Ar, Kr, Xe)
    • F17C2221/017—Helium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/02—Applications for medical applications

Definitions

  • the present invention relates to a protective cover for gas containers, in particular medical gas cylinders, equipped with a pivoting attachment device, making it possible to hang the cover on a bed, a stretcher, an armchair or the like, as well as 'a gas container, such as a gas cylinder, equipped with such a protective cover arranged around a valve block, with or without an integrated regulator.
  • Gas receptacles typically gas cylinders or canisters, equipped with a valve block, with or without an integrated regulator, namely a single open / closed type valve or a pressure regulator valve. integrated, also called RDI, to control the flow and pressure of the gas delivered.
  • valve In order to protect this valve block, more simply called a "valve", it is common practice to arrange, at the level of the neck of the gas cylinder and around the valve block, a protective cover forming a protective shell around the valve block. Such a cowling is commonly called a “cap”.
  • a hanging system on the cap.
  • hoods with a pivoting attachment system have a specific housing into which a pivoting arm is inserted or have an exterior surface shaped to accommodate the pivoting arm when it is completely folded, that is to say in its position of storage along and in contact with the outer surface of the cowling.
  • a pivoting arm is inserted or have an exterior surface shaped to accommodate the pivoting arm when it is completely folded, that is to say in its position of storage along and in contact with the outer surface of the cowling.
  • hoods with a pivoting attachment system often have a major drawback, namely that the attachment device is not maintained in its rest position and / or in its unfolded position, that is to say active. used to attach the assembly to a bed bar or the like, except to provide a specific mechanism ensuring the blocking of the attachment device, which specific mechanism complicates the architecture of the cowling.
  • the attachment device can be a source of injury for the user because it can unfold or, conversely, fold up inadvertently and cause pinching of the hands or fingers, or other injuries.
  • the problem which arises is to provide a protective cowling or cap for a gas container, typically for a gas cylinder, comprising an improved pivoting attachment device which does not have the aforementioned drawback (s), in particular which makes it possible to maintain the attachment device in a stable position when it is unfolded or folded, and easy passage from one position to another, without causing significant complexity of the cowling and reducing the risk of injury to the user.
  • the invention also relates to a gas container equipped with a valve unit, whether it is with or without an integrated regulator, characterized in that it comprises a protective cowling according to the invention arranged around at least part of said valve block.
  • the invention also relates to a use of a gas container according to the invention for dispensing a gas or gas mixture, in particular a gas or gas mixture is chosen from oxygen, air, N 2 O / O 2 , He / O 2 and NO / nitrogen.
  • the Figures 1 to 7 present an embodiment of a rigid protective cowling 1, commonly called a "cap”, arranged around a valve block 3, itself fixed to the neck of a gas cylinder 10.
  • the gas cylinder 10 has typically a size between 10 and 150 cm, and a capacity of 0.5 to 20 liters (in water equivalent).
  • the protective cover 1 serves to protect the valve unit 3 against impacts, whether said valve unit 3 is of the type with integrated gas pressure regulator or RDI, or of the type without integrated pressure reducer.
  • the protective casing 1 comprises a casing body 2 with support uprights 5, forming a rigid protective shell around an internal volume dimensioned to receive the valve block 3.
  • the support uprights 5 are arranged face to face and project. up, as shown in Figure 1 .
  • It also comprises a carrying handle 4 designed to be taken in the hand by an operator, said carrying handle 4 being formed of a rigid material and carried by two support uprights 5 mechanically connecting the body 2 of the cover to the handle. portage 4, that is to say that the support uprights 5 are secured to the carrying handle 4 so as to allow a user to easily transport the hat / valve / bottle assembly.
  • the carrying handle 4 is fixed at the distal ends, that is to say the free ends, of the support uprights 5, while the support uprights 5 are, for their part, fixed by or integral with the cover 1 , via their proximal end.
  • the two support uprights 5 can be formed integrally with the rest of the cowling body 2 or, according to another embodiment, constitute independent elements which are made integral with the cowling body 2.
  • the support posts 5 form part of two wall elements 19 fixed to the body 2 of the cowling 1, as can be seen in FIG. Figure 2 .
  • the two wall elements 19 cover at least part of the outer surface of the cowling body 2, that is to say they conform to its outer profile, and are secured thereto by screws 15 or the like.
  • the body 2 of the cowling 1 is typically made of a material of polymer and / or metal type, preferably of plastic material, such as PVC, PE, PET, PP, PMMA, PU, PA, etc.
  • the support uprights 5 and the two wall elements 19 carrying the support uprights 5 can be formed of a plastic material, such as the body of the cowling 1, but also of aluminum alloy or any other metallic material.
  • the protective cover 1 also has openings giving access to the valve unit 3 located in the internal volume of the cover body 2 1, in particular to the outlet connection 8, to the filling connection 11, to the outlet connection under pressure 12, on the rotary handwheel 7 ...
  • valve unit 3 typically of the RDI type, comprises a rotary handwheel 7, located on the front face 2a, which can be manipulated by a user to control the gas flow, a gas outlet connector 8 to withdraw the gas stored in the gas flow.
  • bottle 10 a manometer 9 to control the gas pressure
  • a filling connection 11 located on the rear face 2b, used to introduce gas into the bottle 10 when the latter is empty, and a pressurized gas outlet connection 12 located laterally and used to distribute gas at operating pressure compatible with the downstream application.
  • the assembly of the protective cover 1 and its fixing around the valve block carried by the gas cylinder 10, is carried out by screwing by means of fixing elements, namely screws, bolts or the like.
  • the body 2 of the cowling is formed of two half-shells coming to be joined to one another, along a vertical junction plane, and carrying the support uprights 5.
  • the two half-shells sandwich the tap 3 and the neck of the receptacle 10 so as to contain the tap block 3 in their space or internal volume, while the two half-shells forming the body 2 are themselves surrounded by, that is to say sandwiched between, the two wall elements 19 carrying the support uprights 5 surmounted by the carrying handle 4.
  • the attachment device 6 On the Figures 1 and 4 , the attachment device 6 is in the rest position, while on the Figures 2 , 3 and 5 , it is in the hooking position, that is to say completely unfolded. These two positions therefore constitute the extreme angular positions that the attachment device 6 can adopt when it is pivoted about the axis AA.
  • the pivot angle ⁇ between these two extreme angular positions is less than or equal to 170 ° and greater than 0 °, preferably greater than 90 °, for example an angle of the order of 150 °.
  • one (or more) stop 13 is arranged between the outer surface of the cowling 1, namely its rear face 2a, and the hooking device 6 so that the latter comes to rest against the stop 13, when the device hooking 6 is in the "rest” position, and therefore does not become embedded in an imprint or a housing of the cowling 1.
  • the stop (or) stop (s) 13 will therefore stop the angular pivoting travel of the device hooking 6 when the latter is folded up by the user to move it from its hooking position to its rest position, since the hooking device 6 will meet the stop 13, that is to say come up against it.
  • the attachment device 6 is therefore kept intentionally at a minimum distance or spacing from the outer surface of the cowling 1.
  • the stop 13 constitutes a sort of protrusion of height H, for example a height H of 1 mm to 15 mm, carried through example by the outer surface of the cowling 1 and projecting towards the outside of the cowling 1.
  • the stop 13 is located opposite the attachment device 6, that is to say opposite the attachment device 6. Said otherwise the stop (or them) 13 is sandwiched between the fastening device 6 and the cowling.
  • a single stop 13 is arranged at the level of the base 14 of the cowling 1, namely here on a flange 18 located at the level of the base 14 of the cowling 1.
  • several stops 13 can be arranged. , for example two or more stops, between the pivoting attachment device 6 and the body 2 of the cowling 1.
  • the stop 13 is provided on the cowling 1 but according to another embodiment, it is can also arrange the stop 13 on the hooking device 6 itself or, according to yet another embodiment, stops 13 can be arranged both on the hooking device 6 and on the body 2 of the cowling 1 .
  • the fastening device 3 forms a curved three-dimensional structure coming to surround the cowling body 2, when the fastening device 6 is in the rest position.
  • the curved three-dimensional structure forming the attachment device 6 comprises two arms, namely a right arm 6a and a left arm 6b, taking the cowling body 2 substantially “sandwiched”, when the attachment device 6 is in the rest position.
  • Each of the arms 6a, 6b carries a fixing notch 16 serving to attach the assembly to a support, such as a hospital bed bar or the like.
  • Each fixing notch 16 has an arcuate shape, for example shaped like an arc of a circle, as illustrated in Figure 2 , so as to best match the shape of a tubular bed bar, stretcher, wheelchair or other.
  • the attachment device 6 In the storage position, the attachment device 6 is positioned around the cowling body 2 so as to minimize the general bulk of the cowling 1, when the attachment device 3 is folded up as on the figure 2 .
  • the three-dimensional structure forming the fastening device 6 When the three-dimensional structure forming the fastening device 6 is folded back, it protrudes outwardly but without increasing the overall size of the cowling 1.
  • the fastening device 6 then comes into contact or quasi contact with the stop 13 by covering the stop 13.
  • the hooking device 6 therefore comprises a free downstream end carrying the arms 6a, 6b, and an upstream end which is pivotally fixed (axis of rotation AA) to the cowling 1, preferably to the support posts 5 of the cowling 1.
  • a opening can be planned in the wall of the body 2 of the cowling 1 to allow and / or facilitate the pivoting of the attachment device 6 from its rest position to that of attachment, or vice versa.
  • the hooking device 6 can be formed of plastic, metal or a combination of the two.
  • the three-dimensional structure constituting the attachment device 6 comprises a central opening 17, revealing the filling connection 11, when the attachment device 6 is in the rest position, that is to say. that is to say folded up and in contact with the stop 13. This allows the user to fill the cylinder 10 with fresh gas, without having to unfold the hooking device 6, that is to say leaving the device 'hooking 6 in its rest position.
  • two fingers D are provided, that is to say two protruding expansions, carried by said hooking device 6 cooperating with two housings L carried by the cowling 1, preferably by the support uprights 5 of the cowling 1.
  • the housings L can be arranged in the cowling body itself, in wall expansions integral with said cowling body 2, in the support posts 5, or in elements fixed to or integral with said support uprights 5 or of the cover body 2.
  • the L housings have a particular shape, as explained below.
  • the pivoting, that is to say the angular indexing, of the hooking device 6 relative to the cowling 1 is ensured by two fingers D carried by the hooking device 6.
  • These two fingers D projecting away relative to the hooking device 6 and are oriented in opposite directions relative to each other. They are arranged on an axis BB parallel to the axis of rotation AA, said axis BB, also called 'movable axis', is movable in pivoting, that is to say in rotation with respect to the axis AA is itself is fixed, ie immobile.
  • the two fingers D each cooperating with one of the two housings L carried for example by the support uprights 5 of the cowling 1, or for example arranged in the body 2 of the cowling, each finger D being inserted into one of said housings L, each finger D being movable within one of said housings L.
  • Each housing L is configured to have at least 3 successive sections S1, S2, S3 comprising a first end section S1 and a second end section S2 connected to each other by an intermediate section S3 which forms a sort of guide passage for each finger D, when it moves in this intermediate section S3.
  • the first and second end sections S1, S2 have an internal profile of generally semi-circular shape, while the intermediate section S3 has a generally oblong, that is to say elongated, shape.
  • Each finger D is positioned in the first end section S1 of the housing L in which it is inserted, when the hooking device 6 is in the hooking position and, conversely, in the second end section S2 of this housing, when the hooking device 6 is in the rest position.
  • the oblong intermediate section S3 comprises two internal walls P1, P2 arranged face to face which form guides for the two fingers D during their movement in the intermediate section S3, during their passage from the first to the second end section S1 , S2 of the L housings, or vice versa.
  • the two internal walls P1, P2 arranged face to face, are curved.
  • the first and the second end section S1, S2 are separated from the intermediate section S3 by wall restrictions R1, R2 projecting radially inwards from the intermediate section S3, as visible on Figures 4 and 5 .
  • These wall restrictions R1, R2 form a kind of stops serving to create a hard point and to properly retain the fingers D, when they are positioned in the first and second end sections S1, S2, that is to say - say in the rest or hooked position.
  • the passage of the wall restrictions R1, R2 by the fingers D is facilitated thanks to an axial slot F provided at the free end EL of the fingers D, as illustrated in Figure 7 .
  • the slots F are provided in a part of the fingers D made of an elastically deformable material, for example a polymer.
  • This slot F separates each finger D into two half-fingers.
  • This structure allows the fingers D to deform elastically and locally when the wall restrictions R1, R2 pass since, when the fingers D pass between the wall restrictions R1, R2, they act mechanically on the two half-fingers and the force them to come closer to one another by filling in the space between them, that is to say the slot F.
  • the diameter of the fingers D is consequently reduced at the level of the free ends EL thus allowing the passage of the fingers D between the wall restrictions R1, R2, including if the diameter of the fingers D at the level of said free ends EL is, before deformation, slightly greater than the passage P existing between said wall restrictions R1, R2.
  • This elastic deformation of the fingers also prevents premature wear of the wall restrictions R1, R2 and of the fingers D.
  • the width L of the wall restrictions R1, R2 is preferably slightly greater than that of the cylindrical sections at the level of said free ends EL of the fingers D to allow their passage through said wall restrictions R1, R2. In this case, the F slots are not necessary.
  • the width of the wall restrictions R1, R2 is between 0.5 and 2 mm.
  • the first and the second end section S1, S2 have an internal wall of semicircular shape SC opening onto the intermediate section S3, through the wall restrictions R1, R2.
  • the clearance between the radius Ro of the first and second end sections S1, S2 of semi-circular shape and the radius of D is between 0.1 and 1 mm.
  • a gas cylinder equipped with a cover according to the invention is particularly well suited to the storage and distribution of pressurized gas, in particular medical gas, in particular a gas chosen from oxygen, air, N 2 O / O 2 , He / O 2 and NO / nitrogen.

Description

La présente invention concerne un capotage de protection pour récipients de gaz, en particulier bouteilles de gaz médical, équipé d'un dispositif d'accrochage pivotant, permettant d'accrocher le capotage sur un lit, un brancard, un fauteuil ou autre, ainsi qu'un récipient de gaz, telle une bouteille de gaz, équipé d'un tel capotage de protection agencé autour d'un bloc robinet, avec ou sans détendeur intégré.The present invention relates to a protective cover for gas containers, in particular medical gas cylinders, equipped with a pivoting attachment device, making it possible to hang the cover on a bed, a stretcher, an armchair or the like, as well as 'a gas container, such as a gas cylinder, equipped with such a protective cover arranged around a valve block, with or without an integrated regulator.

Les gaz industriels et médicaux sont couramment conditionnés dans des récipients de gaz, typiquement des bouteilles ou bonbonnes de gaz, équipés d'un bloc robinet, avec ou sans détendeur intégré, à savoir un robinet simple de type ouvert/fermé ou un robinet à détendeur intégré, encore appelé RDI, permettant de contrôler débit et pression du gaz délivré.Industrial and medical gases are commonly packaged in gas receptacles, typically gas cylinders or canisters, equipped with a valve block, with or without an integrated regulator, namely a single open / closed type valve or a pressure regulator valve. integrated, also called RDI, to control the flow and pressure of the gas delivered.

Afin de protéger ce bloc robinet, plus simplement appelé « robinet », il est courant d'agencer, au niveau du col de la bouteille de gaz et autour du bloc robinet, un capotage de protection formant coque protectrice autour du bloc robinet. Un tel capotage est couramment appelé « chapeau ».In order to protect this valve block, more simply called a "valve", it is common practice to arrange, at the level of the neck of the gas cylinder and around the valve block, a protective cover forming a protective shell around the valve block. Such a cowling is commonly called a “cap”.

Par ailleurs, pour permettre d'accrocher l'ensemble bouteille/chapeau/robinet à un support, tel un barreau de lit d'hôpital, un brancard, une tringle ou support d'accrochage d'un véhicule d'urgence, par exemple une unité de SAMU ou analogue, il est usuel d'aménager un système d'accrochage sur le chapeau.Furthermore, to allow the bottle / cap / valve assembly to be hung on a support, such as a hospital bed bar, a stretcher, a rod or hanging support for an emergency vehicle, for example a SAMU unit or the like, it is usual to arrange a hanging system on the cap.

Il existe des systèmes d'accrochage fixes et d'autres mobiles, en particulier translatants ou pivotants, par exemple ceux décrits par les documents EP-A-629812 , DE-A-10057469 , US-A-2004/020793 , EP-A-2586481 , et FR 3 052 848 A1 .There are fixed hooking systems and other movable ones, in particular translating or pivoting, for example those described by the documents EP-A-629812 , DE-A-10057469 , US-A-2004/020793 , EP-A-2586481 , and FR 3 052 848 A1 .

Certains capotages à système d'accrochage pivotant possèdent un logement spécifique dans lequel vient s'insérer un bras pivotant ou présentent une surface extérieure conformée pour accueillir le bras pivotant lorsqu'il est complètement replié, c'est-à-dire dans sa position de rangement le long et au contact de la surface externe du capotage. On peut citer par exemple EP-A-2918893 et WO-A-2015/132092 .Certain hoods with a pivoting attachment system have a specific housing into which a pivoting arm is inserted or have an exterior surface shaped to accommodate the pivoting arm when it is completely folded, that is to say in its position of storage along and in contact with the outer surface of the cowling. We can cite for example EP-A-2918893 and WO-A-2015/132092 .

Cependant, les capotages à système d'accrochage pivotant présentent souvent un inconvénient majeur, à savoir que le dispositif d'accrochage n'est pas maintenu dans sa position de repos et/ou dans sa position dépliée, c'est-à-dire active servant à l'accroche de l'ensemble à un barreau de lit ou analogue, sauf à prévoir un mécanisme spécifique assurant le blocage du dispositif d'accrochage, lequel mécanisme spécifique complique l'architecture du capotage.However, hoods with a pivoting attachment system often have a major drawback, namely that the attachment device is not maintained in its rest position and / or in its unfolded position, that is to say active. used to attach the assembly to a bed bar or the like, except to provide a specific mechanism ensuring the blocking of the attachment device, which specific mechanism complicates the architecture of the cowling.

Or, si le dispositif d'accrochage n'est pas maintenu, il peut être source de blessures pour l'utilisateur car il peut se déplier ou, à l'inverse, se replier intempestivement et engendrer des pincements des mains ou des doigts, ou d'autres blessures.However, if the attachment device is not maintained, it can be a source of injury for the user because it can unfold or, conversely, fold up inadvertently and cause pinching of the hands or fingers, or other injuries.

De là, quand on déploie le dispositif d'accrochage d'un capotage équipant une bouteille de gaz, on doit en même temps tenir la bouteille via sa poignée de transport et maintenir d'une autre main, le dispositif d'accrochage déployé.From there, when we deploy the attachment device of a cowling equipping a gas cylinder, we must at the same time hold the bottle via its transport handle and hold the deployed attachment device with another hand.

En plus d'être peu ergonomique, cette manière de faire engendre, comme déjà dit, un risque pour l'utilisateur de se pincer les doigts ou la main entre le dispositif d'accrochage et le support au moment de son accrochage.In addition to being not very ergonomic, this way of operating generates, as already said, a risk for the user of pinching his fingers or hand between the attachment device and the support when it is attached.

Au vu de cela, le problème qui se pose est de proposer un capotage de protection ou chapeau pour récipient de gaz, typiquement pour bouteille de gaz, comprenant un dispositif d'accrochage pivotant amélioré ne présentant pas le ou les inconvénients susmentionnés, en particulier qui permette d'assurer un maintien du dispositif d'accrochage en position stable lorsqu'il est déplié ou replié, et un passage aisé d'une position à l'autre, sans engendrer une complexification importante du capotage et en diminuant les risques de blessures pour l'utilisateur.In view of this, the problem which arises is to provide a protective cowling or cap for a gas container, typically for a gas cylinder, comprising an improved pivoting attachment device which does not have the aforementioned drawback (s), in particular which makes it possible to maintain the attachment device in a stable position when it is unfolded or folded, and easy passage from one position to another, without causing significant complexity of the cowling and reducing the risk of injury to the user.

La solution de l'invention est un capotage de protection ou « chapeau » pour récipient de gaz, en particulier pour bouteille de gaz, équipé d'un bloc robinet, avec ou sans détendeur intégré, comprenant :

  • un corps de capotage formant une coque protectrice délimitant un volume interne conçu pour recevoir tout ou partie du bloc robinet, et
  • un dispositif d'accrochage pivotant autour d'un axe AA, appelé « axe de rotation », entre plusieurs positions angulaires comprenant une position de repos dans laquelle le dispositif d'accrochage est totalement replié et une position d'accrochage dans laquelle le dispositif d'accrochage est déplié,
caractérisé en ce que :
  • le pivotement, encore appelé indexage angulaire, du dispositif d'accrochage par rapport au capotage est assuré par deux doigts portés par le dispositif d'accrochage, lesdits deux doigts se projetant en éloignement par rapport au dispositif d'accrochage et étant orientés dans des directions opposées l'un par rapport à l'autre, lesdits deux doigts coopérant avec deux logements portés par le capotage, chaque doigt venant s'insérer dans l'un desdits logements,
  • chaque logement est configuré pour présenter au moins 3 sections successives comprenant une première section d'extrémité et une seconde section d'extrémité reliée l'une à l'autre par une section intermédiaire, les première et seconde sections d'extrémité ayant un profil interne de forme générale semi-circulaire, et la section intermédiaire ayant une forme oblongue, la première et la seconde section d'extrémité étant séparées de la section intermédiaire par des restrictions de paroi se projetant radialement vers l'intérieur de la section intermédiaire, et
  • chaque doigt venant se positionner dans la première section d'extrémité du logement dans lequel il est inséré, lorsque le dispositif d'accrochage est en position d'accrochage et dans la seconde section d'extrémité dudit logement, lorsque le dispositif d'accrochage est en position de repos.
The solution of the invention is a protective cowling or “cap” for a gas receptacle, in particular for a gas cylinder, equipped with a valve block, with or without an integrated regulator, comprising:
  • a cowling body forming a protective shell delimiting an internal volume designed to receive all or part of the valve unit, and
  • a hooking device pivoting about an axis AA, called "axis of rotation", between several angular positions comprising a rest position in which the hooking device is completely folded up and a hooking position in which the device d the hook is unfolded,
characterized in that:
  • the pivoting, also called angular indexing, of the hooking device relative to the cowling is provided by two fingers carried by the hooking device, said two fingers projecting away from the hooking device and being oriented in different directions opposite to each other, said two fingers cooperating with two housings carried by the cowling, each finger being inserted into one of said housings,
  • each housing is configured to have at least 3 successive sections comprising a first end section and a second end section connected to each other by an intermediate section, the first and second end sections having an internal profile generally semicircular in shape, and the intermediate section having an oblong shape, the first and second end sections being separated from the intermediate section by wall restrictions projecting radially inwardly of the intermediate section, and
  • each finger being positioned in the first end section of the housing in which it is inserted, when the hooking device is in the hooking position and in the second end section of said housing, when the hooking device is in rest position.

Selon le cas, le capotage de protection selon l'invention peut comprendre l'une ou plusieurs des caractéristiques techniques suivantes :

  • selon un premier mode de réalisation, les deux logements sont aménagés dans le corps de capotage lui-même, par exemple dans des expansions de paroi du corps de capotage.
  • selon un second mode de réalisation, les deux logements sont aménagés dans des montants-supports portés par le capotage.
  • les deux logements sont préférentiellement aménagés dans des montants-supports portés par le capotage.
  • les montants-supports portent une poignée de portage.
  • les montants-supports ont une forme allongée.
  • la poignée de portage est fixée à une extrémité distale, i.e. une extrémité libre, des montants-supports.
  • la poignée de portage s'étend entre les montants-supports.
  • les montants-supports sont fixés au capotage par une extrémité proximale.
  • les montants-supports sont fixés au corps de capotage, soit en y étant raccordés solidairement, par exemple par vissage, collage, soudage etc... soit en étant formés d'une seule pièce avec tout ou partie du corps de capotage.
  • le corps de capotage comprend plusieurs parties ou sous-unités fixées les unes aux autres, par exemple de plusieurs demi-coques et/ou éléments de parois ou autres venant s'imbriquer, c'est-à-dire se solidariser, les unes aux autres.
  • la section intermédiaire de forme oblongue de chaque logement constitue un couloir de guidage pour guider l'un des doigts pendant son/ses déplacements au sein de la section intermédiaire.
  • lorsqu'un utilisateur actionne manuellement le dispositif d'accrochage pour le faire passer de la position de repos à la position d'accrochage, chaque doigt passe successivement de la seconde section d'extrémité du logement, à la section intermédiaire et à la première section d'extrémité du logement dans lequel ledit doigt est inséré, et inversement.
  • la section intermédiaire comprend deux parois internes agencées face à face et formant des guides pour les deux doigts pendant leur déplacement entre les première et seconde sections d'extrémité des logements.
  • la section intermédiaire comprend deux parois internes agencées face à face, lesdites parois internes étant courbes.
  • les deux doigts se projettent en éloignement par rapport au dispositif d'accrochage sont portés par un axe BB, appelé « axe mobile », parallèle à l'axe AA ou « axe de rotation ».
  • l'axe BB ou « axe mobile » sur lequel sont agencés les deux doigts est mobile en pivotement par rapport audit axe AA ou « axe de rotation ».
  • les deux doigts sont au moins partiellement cylindriques, c'est-à-dire que chaque doigt présente une section cylindrique ou quasi-cylindrique au moins dans sa portion qui vient s'insérer entre les parois de chaque logement.
  • les restrictions de paroi forment des butées de maintien configurées pour maintenir chaque doigt en position stable dans la première ou dans la seconde section d'extrémité du logement dans lequel ledit doigt est inséré, lorsque le dispositif d'accrochage est en position d'accrochage ou en position de repos, respectivement.
  • les restrictions de paroi présentent chacune un passage ayant une largeur de passage supérieure au diamètre des deux doigts de sorte que les deux doigts puissent passer dans ladite largeur de passage, c'est-à-dire au travers du passage compris entre les restrictions.
  • de façon alternative, les restrictions de paroi présentent chacune un passage ayant une largeur de passage inférieure ou égale au diamètre des deux doigts, et chaque doigt comprend une extrémité libre réalisée en un matériau élastiquement déformable et comportant une fente axiale séparant chaque doigt en deux demi-doigts, de sorte que chaque doigt subit une déformation élastique, lors de son passage entre les restrictions de paroi, rapprochement élastique des deux demi-doigts l'un vers l'autre par écrasement, c'est-à-dire que les deux demi-doigts de chaque doigt sont repoussés l'un vers l'autre lorsqu'il passe au travers des restrictions de paroi, grâce à leur déformation élastique et comblement/rétrécissement de l'espacement formant chaque fente axiale.
  • le dispositif d'accrochage comprend deux bras, chaque bras portant l'un des deux doigts.
  • le dispositif d'accrochage comprend deux bras s'étendant de part et d'autre du capotage, c'est-à-dire vers la droite et la gauche du capotage, de manière à le ceinturer partiellement, lorsque le dispositif d'accrochage est en position de repos, c'est-à-dire replié.
  • il comprend en outre au moins une butée agencée entre le dispositif d'accrochage et le capotage, ledit dispositif d'accrochage venant au contact de ladite butée lorsqu'il est en position de repos, et étant espacé du fait de la présence de ladite butée à une distance non nulle donnée par rapport à la surface externe du capotage. Grâce à cette butée, le dispositif d'accrochage ne vient pas s'incruster dans la paroi externe du corps de capotage, donc peut être aisément saisi par l'utilisateur étant donné que le dispositif d'accrochage vient buter mécaniquement contre la butée qui stoppe sa course lorsqu'on le replie dans sa position de repos.
  • le dispositif d'accrochage est maintenu à une distance (ou espacement) donnée d'au moins 1 mm environ par rapport à la surface externe du capotage, par exemple entre 1.5 et/ou 10 mm environ par rapport à la surface externe du corps de capotage, de manière à être en légère surélévation par rapport à la surface du capotage et pouvoir être aisément saisi par l'utilisateur.
  • au moins une butée est agencée au niveau de la base du capotage.
  • le dispositif d'accrochage comporte deux bras s'étendant latéralement de part et d'autre du corps de capotage, ladite au moins une butée étant agencée de manière à être prise en sandwich entre le dispositif d'accrochage au niveau des deux bras et le capotage.
  • le corps de capotage porte au moins une butée faisant saillie en éloignement par rapport à la surface externe dudit corps de capotage, de préférence la butée a une hauteur H comprise entre 1 et 15 mm.
  • le corps de capotage comprend au moins deux demi-coques solidarisées l'une à l'autre, par exemple par des vis ou analogues. De préférence, les deux demi-coques sont solidarisées l'une à l'autre selon un plan vertical ou sensiblement vertical.
  • les montants-supports sont portés par les demi-coques.
  • alternativement, les montants-supports sont solidarisés, i.e. fixés, aux demi-coques.
  • alternativement encore, les montants-supports sont portés par des parois ou analogues, lesquelles sont elles-mêmes solidarisées aux demi-coques.
  • le dispositif d'accrochage est fixé de manière pivotante autour d'un axe AA, de préférence situé sur la face arrière du corps du capotage, c'est-à-dire sur la face diamétralement opposée par rapport à une ouverture du capotage donnant accès à un raccord de sortie de gaz du robinet protégé par ledit capotage.
  • le dispositif d'accrochage comprend une structure tridimensionnelle, de préférence elle a une forme générale incurvée.
  • le dispositif d'accrochage pivote entre la position de repos et la position d'accrochage d'un angle (a) inférieur à 180°, typiquement inférieur à 150°.
  • les deux montants-supports se font face et sont fixés à ou solidaires du corps de capotage.
  • le corps du capotage et le dispositif d'accrochage sont formés de matériau polymère. Typiquement, le matériau de type polymère est un matériau plastique, tel que PVC, PE, PET, PP, PMMA, PU, PA...
  • le dispositif d'accrochage est formé d'une seule pièce, notamment par moulage.
  • le dispositif d'accrochage comprend une ouverture centrale venant se positionner en regard du raccord de remplissage lorsque le dispositif d'accrochage est en position de repos.
  • le dispositif d'accrochage est au contact de la butée lorsqu'il est en position de repos.
  • le capotage comprend en outre un volant rotatif de contrôle de la sortie de gaz et un raccord de sortie de gaz.
  • le capotage comprend en outre un manomètre servant à indiquer la pression du gaz dans la bouteille équipée du capotage.
Depending on the case, the protective cowling according to the invention may include one or more of the following technical characteristics:
  • according to a first embodiment, the two housings are arranged in the cowling body itself, for example in wall expansions of the cowling body.
  • according to a second embodiment, the two housings are arranged in support posts carried by the cowling.
  • the two housings are preferably arranged in support posts carried by the cowling.
  • the support posts carry a carrying handle.
  • the support posts have an elongated shape.
  • the carrying handle is attached to a distal end, ie a free end, of the support posts.
  • the carrying handle extends between the support posts.
  • the support posts are attached to the cowling by a proximal end.
  • the support posts are fixed to the cowling body, either by being integrally connected thereto, for example by screwing, gluing, welding, etc., or by being formed in one piece with all or part of the cowling body.
  • the cowling body comprises several parts or sub-units fixed to one another, for example several half-shells and / or wall elements or others coming to be nested, that is to say to be joined, to each other other.
  • the intermediate section of oblong shape of each housing constitutes a guide passage for guiding one of the fingers during its / its movements within the intermediate section.
  • when a user manually actuates the hooking device to move it from the rest position to the hooking position, each finger passes successively from the second end section of the housing, to the intermediate section and to the first section end of the housing in which said finger is inserted, and vice versa.
  • the intermediate section comprises two internal walls arranged face to face and forming guides for the two fingers during their movement between the first and second end sections of the housings.
  • the intermediate section comprises two internal walls arranged face to face, said internal walls being curved.
  • the two fingers project away from the fastening device and are carried by an axis BB, called “movable axis”, parallel to the axis AA or “axis of rotation”.
  • the axis BB or “movable axis” on which the two fingers are arranged is movable in pivoting relative to said axis AA or “axis of rotation”.
  • the two fingers are at least partially cylindrical, that is to say that each finger has a cylindrical or quasi-cylindrical section at least in its portion which is inserted between the walls of each housing.
  • the wall restrictions form retaining stops configured to hold each finger in a stable position in the first or in the second end section of the housing in which said finger is inserted, when the hooking device is in the hooking position or in the rest position, respectively.
  • the wall restrictions each have a passage having a passage width greater than the diameter of the two fingers so that the two fingers can pass in said passage width, that is to say through the passage included between the restrictions.
  • alternatively, the wall restrictions each have a passage having a passage width less than or equal to the diameter of the two fingers, and each finger comprises a free end made of an elastically deformable material and comprising an axial slot separating each finger into two halves -fingers, so that each finger undergoes an elastic deformation, during its passage between the wall restrictions, elastic approach of the two half-fingers towards each other by crushing, that is to say that the two half-fingers of each finger are pushed towards each other as it passes through the wall restrictions, by virtue of their elastic deformation and filling / narrowing of the gap forming each axial slit.
  • the hooking device comprises two arms, each arm carrying one of the two fingers.
  • the attachment device comprises two arms extending on either side of the cowling, that is to say to the right and the left of the cowling, so as to partially surround it, when the attachment device is in the rest position, that is to say folded.
  • it further comprises at least one stop arranged between the fastening device and the cowling, said fastening device coming into contact with said stop when it is in the rest position, and being spaced apart due to the presence of said stopper at a given non-zero distance from the outer surface of the cowling. Thanks to this stopper, the hooking device does not become embedded in the outer wall of the cowling body, and can therefore be easily grasped by the user given that the hooking device mechanically abuts against the stopper which stops its stroke when folded into its rest position.
  • the attachment device is maintained at a given distance (or spacing) of at least about 1 mm relative to the outer surface of the cowling, for example between 1.5 and / or about 10 mm relative to the outer surface of the body of the cowling, so as to be slightly raised relative to the surface of the cowling and to be easily grasped by the user.
  • at least one stopper is arranged at the base of the cowling.
  • the attachment device comprises two arms extending laterally on either side of the cowling body, said at least one stop being arranged so as to be sandwiched between the attachment device at the level of the two arms and the cowling.
  • the cowling body carries at least one stop projecting away from the external surface of said cowling body, preferably the stop has a height H of between 1 and 15 mm.
  • the cowling body comprises at least two half-shells secured to one another, for example by screws or the like. Preferably, the two half-shells are secured to one another along a vertical or substantially vertical plane.
  • the support posts are carried by the half-shells.
  • alternatively, the support uprights are secured, ie fixed, to the half-shells.
  • alternatively again, the support posts are carried by walls or the like, which are themselves secured to the half-shells.
  • the hooking device is fixed in a pivoting manner about an axis AA, preferably located on the rear face of the body of the cowling, that is to say on the face diametrically opposed to an opening in the cowling giving access to a gas outlet connection of the valve protected by said cowling.
  • the hooking device comprises a three-dimensional structure, preferably it has a generally curved shape.
  • the fastening device pivots between the rest position and the fastening position by an angle (a) less than 180 °, typically less than 150 °.
  • the two support posts face each other and are attached to or integral with the cowling body.
  • the body of the cowling and the attachment device are made of polymer material. Typically, the polymer type material is a plastic material, such as PVC, PE, PET, PP, PMMA, PU, PA ...
  • the attachment device is formed in one piece, in particular by molding.
  • the attachment device comprises a central opening which is positioned opposite the filling connector when the attachment device is in the rest position.
  • the hooking device is in contact with the stop when it is in the rest position.
  • the cowling further comprises a rotary handwheel for controlling the gas outlet and a gas outlet connection.
  • the cowling further comprises a manometer serving to indicate the gas pressure in the bottle equipped with the cowling.

Par ailleurs, l'invention porte aussi sur un récipient de gaz équipé d'un bloc robinet, qu'il soit avec ou sans détendeur intégré, caractérisé en qu'il comprend un capotage de protection selon l'invention agencé autour d'au moins une partie dudit bloc robinet.Furthermore, the invention also relates to a gas container equipped with a valve unit, whether it is with or without an integrated regulator, characterized in that it comprises a protective cowling according to the invention arranged around at least part of said valve block.

Selon le cas, le récipient de gaz de l'invention peut comprendre l'une ou plusieurs des caractéristiques techniques suivantes :

  • il est choisi parmi les bouteilles de gaz.
  • il est une bouteille de gaz ayant une taille comprise entre 10 et 150 cm.
  • il est une bouteille de gaz contenant de 0,5 à 20 litres (contenance en équivalent eau), voire même une contenance supérieure.
  • il est une bouteille de gaz de corps cylindrique creux.
  • il est une bouteille de gaz comprenant un col portant un orifice de sortie du gaz.
  • le capotage est fixé au col du récipient de gaz.
  • il est une bouteille de gaz contenant un gaz ou mélange gazeux choisi parmi l'oxygène, l'air, un mélange N2O/O2, un mélange He/O2, un mélange NO/azote ou tout autre gaz ou mélange gazeux.
  • le bloc robinet est de type à détendeur intégré, c'est-à-dire un RDI.
  • la bouteille est en acier, en un alliage d'aluminium ou en matériau composite.
  • la bouteille contient un gaz à une pression allant jusqu'à 350 bar environ.
Depending on the case, the gas container of the invention may comprise one or more of the following technical characteristics:
  • it is chosen from the gas cylinders.
  • it is a gas cylinder having a size between 10 and 150 cm.
  • it is a gas cylinder containing 0.5 to 20 liters (water equivalent capacity), or even a higher capacity.
  • it is a hollow cylindrical body gas cylinder.
  • it is a gas cylinder comprising a neck carrying a gas outlet orifice.
  • the cowling is attached to the neck of the gas container.
  • it is a gas cylinder containing a gas or gaseous mixture chosen from oxygen, air, an N 2 O / O 2 mixture, a He / O 2 mixture, an NO / nitrogen mixture or any other gas or gas mixture .
  • the valve block is of the type with integrated regulator, that is to say an RDI.
  • the bottle is made of steel, aluminum alloy or composite material.
  • the cylinder contains gas at a pressure of up to approximately 350 bar.

L'invention concerne aussi une utilisation d'un récipient de gaz selon l'invention pour distribuer un gaz ou mélange gazeux, en particulier un gaz ou mélange gazeux est choisi parmi l'oxygène, air, N2O/O2, He/O2 et NO/azote.The invention also relates to a use of a gas container according to the invention for dispensing a gas or gas mixture, in particular a gas or gas mixture is chosen from oxygen, air, N 2 O / O 2 , He / O 2 and NO / nitrogen.

L'invention va maintenant être mieux comprise grâce à la description détaillée suivante, faite à titre illustratif mais non limitatif, en référence aux figures annexées parmi lesquelles :

  • la Figure 1 représente une vue de la face avant d'un capotage de protection selon l'invention équipant une bouteille de gaz,
  • la Figure 2 est une vue partielle de ¾ arrière du capotage de la Figure 3,
  • la Figure 3 représente une vue partielle de la face arrière du capotage de la Figure 1 avec dispositif d'accrochage en position d'accrochage,
  • les Figures 4 et 5 représentent une vue partielle (en coupe) de côté du dispositif d'accrochage en position repliée et en position d'accrochage,
  • la Figure 6 schématise un doigt coopérant avec un logement, et
  • la Figure 7 schématise l'insertion des deux doigts du dispositif d'accrochage dans les deux logements du capotage.
The invention will now be better understood thanks to the following detailed description, given by way of illustration but not limitation, with reference to the appended figures, among which:
  • the Figure 1 shows a view of the front face of a protective cowling according to the invention fitted to a gas cylinder,
  • the Figure 2 is a partial rear ¾ view of the cowling of the Figure 3 ,
  • the Figure 3 shows a partial view of the rear face of the cowling of the Figure 1 with hooking device in hooking position,
  • the Figures 4 and 5 show a partial side view (in section) of the attachment device in the folded position and in the attachment position,
  • the Figure 6 schematizes a finger cooperating with a housing, and
  • the Figure 7 shows schematically the insertion of the two fingers of the hooking device in the two housings of the cowling.

Les Figures 1 à 7 présentent un mode de réalisation d'un capotage de protection 1 rigide, couramment appelé « chapeau », agencé autour d'un bloc robinet 3, lui-même fixé sur le col d'une bouteille de gaz 10. La bouteille de gaz 10 a typiquement une taille entre 10 et 150 cm, et une contenance de 0,5 à 20 litres (en équivalent eau). Le capotage de protection 1 sert à protéger le bloc robinet 3 contre les chocs, que ledit bloc robinet 3 soit du type avec détendeur de gaz intégré ou RDI, ou du type sans détendeur intégré.The Figures 1 to 7 present an embodiment of a rigid protective cowling 1, commonly called a "cap", arranged around a valve block 3, itself fixed to the neck of a gas cylinder 10. The gas cylinder 10 has typically a size between 10 and 150 cm, and a capacity of 0.5 to 20 liters (in water equivalent). The protective cover 1 serves to protect the valve unit 3 against impacts, whether said valve unit 3 is of the type with integrated gas pressure regulator or RDI, or of the type without integrated pressure reducer.

Le capotage de protection 1 comprend un corps 2 de capotage avec des montants-supports 5, formant une coque protectrice rigide autour d'un volume interne dimensionné pour recevoir le bloc robinet 3. Les montants-supports 5 sont agencés face à face et se projettent vers le haut, comme illustré en Figure 1.The protective casing 1 comprises a casing body 2 with support uprights 5, forming a rigid protective shell around an internal volume dimensioned to receive the valve block 3. The support uprights 5 are arranged face to face and project. up, as shown in Figure 1 .

Il comprend par ailleurs une poignée de portage 4 conçue pour être prise en main par un opérateur, ladite poignée de portage 4 étant formée d'un matériau rigide et portée par deux montants-supports 5 reliant mécaniquement le corps 2 de capotage à la poignée de portage 4, c'est-à-dire que les montants-supports 5 sont solidarisés à la poignée de portage 4 de manière à permettre à un utilisateur de transporter facilement l'ensemble chapeau/robinet/bouteille.It also comprises a carrying handle 4 designed to be taken in the hand by an operator, said carrying handle 4 being formed of a rigid material and carried by two support uprights 5 mechanically connecting the body 2 of the cover to the handle. portage 4, that is to say that the support uprights 5 are secured to the carrying handle 4 so as to allow a user to easily transport the hat / valve / bottle assembly.

La poignée de portage 4 est fixée au niveau des extrémités distales, c'est-à-dire les extrémités libres, des montants-supports 5, alors que les montants-supports 5 sont, quant à eux, fixés par ou solidaires du capotage 1, via leur extrémité proximale.The carrying handle 4 is fixed at the distal ends, that is to say the free ends, of the support uprights 5, while the support uprights 5 are, for their part, fixed by or integral with the cover 1 , via their proximal end.

Il est à souligner que les deux montants-supports 5 peuvent être formés d'une seule pièce avec le reste du corps de capotage 2 ou, selon un autre mode de réalisation, constituer des éléments indépendants venant se solidariser au corps 2 de capotage. Ainsi, dans le mode de réalisation présenté sur les figures, les montants-supports 5 font partie de deux éléments de parois 19 fixés au corps 2 du capotage 1, comme visible sur la Figure 2. Plus précisément, les deux éléments de parois 19 recouvrent au moins une partie de la surface externe du corps 2 de capotage, c'est-à-dire qu'ils épousent son profil extérieur, et y sont solidarisés par des vis 15 ou analogues.It should be noted that the two support uprights 5 can be formed integrally with the rest of the cowling body 2 or, according to another embodiment, constitute independent elements which are made integral with the cowling body 2. Thus, in the embodiment shown in the figures, the support posts 5 form part of two wall elements 19 fixed to the body 2 of the cowling 1, as can be seen in FIG. Figure 2 . More precisely, the two wall elements 19 cover at least part of the outer surface of the cowling body 2, that is to say they conform to its outer profile, and are secured thereto by screws 15 or the like.

Le corps 2 du capotage 1 est typiquement en un matériau de type polymère et/ou métal, préférentiellement en matériau plastique, tel que PVC, PE, PET, PP, PMMA, PU, PA... De même, les montants-supports 5 et les deux éléments de parois 19 portant les montants-supports 5 peuvent être formés d'un matériau plastique, comme le corps du capotage 1, mais aussi en alliage d'aluminium ou tout autre matériau métallique.The body 2 of the cowling 1 is typically made of a material of polymer and / or metal type, preferably of plastic material, such as PVC, PE, PET, PP, PMMA, PU, PA, etc. Likewise, the support uprights 5 and the two wall elements 19 carrying the support uprights 5 can be formed of a plastic material, such as the body of the cowling 1, but also of aluminum alloy or any other metallic material.

Le capotage de protection 1 présente par ailleurs des ouvertures donnant accès au bloc robinet 3 situé dans le volume interne du corps 2 de capotage 1, en particulier au raccord de sortie 8, au raccord de remplissage 11, au raccord de sortie sous pression 12, au volant rotatif 7...The protective cover 1 also has openings giving access to the valve unit 3 located in the internal volume of the cover body 2 1, in particular to the outlet connection 8, to the filling connection 11, to the outlet connection under pressure 12, on the rotary handwheel 7 ...

Plus précisément, le bloc robinet 3, typiquement de type RDI, comprend un volant rotatif 7, situé en face avant 2a, manipulable par un utilisateur pour contrôler le débit de gaz, un raccord de sortie de gaz 8 pour soutirer le gaz stocké dans la bouteille 10, un manomètre 9 pour contrôler la pression du gaz, un raccord de remplissage 11, situé en face arrière 2b, servant à introduire du gaz dans la bouteille 10 lorsque celle-ci est vide, et un raccord de sortie de gaz sous pression 12 situé latéralement et servant à distribuer le gaz à pression de service compatible avec l'application aval.More precisely, the valve unit 3, typically of the RDI type, comprises a rotary handwheel 7, located on the front face 2a, which can be manipulated by a user to control the gas flow, a gas outlet connector 8 to withdraw the gas stored in the gas flow. bottle 10, a manometer 9 to control the gas pressure, a filling connection 11, located on the rear face 2b, used to introduce gas into the bottle 10 when the latter is empty, and a pressurized gas outlet connection 12 located laterally and used to distribute gas at operating pressure compatible with the downstream application.

L'assemblage du capotage de protection 1 et sa fixation autour du bloc de robinet porté par la bouteille de gaz 10, se fait par vissage au moyen d'éléments de fixation, à savoir des vis, des boulons ou analogues.The assembly of the protective cover 1 and its fixing around the valve block carried by the gas cylinder 10, is carried out by screwing by means of fixing elements, namely screws, bolts or the like.

De préférence, dans le mode de réalisation des Figures, le corps 2 du capotage est formé de deux demi-coques venant se solidariser l'une à l'autre, selon un plan de jonction vertical, et portant les montants-supports 5. En fait, les deux demi-coques viennent prendre en sandwich le robinet 3 et le col du récipient 10 de manière à contenir le bloc robinet 3 dans leur espace ou volume interne, alors que les deux demi-coques formant le corps 2 sont elles-mêmes ceinturées par, c'est-à-dire prises en sandwich entre, les deux éléments de parois 19 portant les montants-supports 5 surmontés de la poignée de portage 4.Preferably, in the embodiment of the Figures, the body 2 of the cowling is formed of two half-shells coming to be joined to one another, along a vertical junction plane, and carrying the support uprights 5. In done, the two half-shells sandwich the tap 3 and the neck of the receptacle 10 so as to contain the tap block 3 in their space or internal volume, while the two half-shells forming the body 2 are themselves surrounded by, that is to say sandwiched between, the two wall elements 19 carrying the support uprights 5 surmounted by the carrying handle 4.

Afin de permettre l'accroche ou l'arrimage de l'ensemble bouteille 10/bloc robinet 3/capotage 1 à un support, tel un barreau de lit d'hôpital, de brancard ou autre, le capotage de protection 1 comprend, du côté de sa face arrière 2b, un dispositif d'accrochage 6 pivotant autour d'un axe AA, appelé « axe de rotation », entre :

  • une position totalement repliée, dite position « de repos », c'est-à-dire la position adoptée par le dispositif d'accrochage 6 lorsqu'il est rangé et positionné en contact ou quasi-contact du capotage 1, et
  • une position totalement dépliée dite position « d'accrochage », c'est-à-dire la position adoptée par le dispositif d'accrochage 6 lorsqu'il est complètement sorti et peut être accroché à un support, tel un barreau de lit ou analogue.
In order to allow the bottle 10 / valve unit 3 / cover 1 assembly to be attached or secured to a support, such as a hospital bed bar, stretcher or the like, the protective cover 1 comprises, on the side on its rear face 2b, a hooking device 6 pivoting about an axis AA, called “axis of rotation”, between:
  • a fully folded position, called the "rest" position, that is to say the position adopted by the attachment device 6 when it is stored and positioned in contact or quasi-contact with the cowling 1, and
  • a fully unfolded position known as the "hooking" position, that is to say the position adopted by the hooking device 6 when it is fully extended and can be hooked to a support, such as a bed bar or the like .

Sur les Figures 1 et 4, le dispositif d'accrochage 6 est en position de repos, alors que sur les Figures 2, 3 et 5, il est en position d'accrochage, c'est-à-dire totalement déplié. Ces deux positions constituent donc les positions angulaires extrêmes que peut adopter le dispositif d'accrochage 6 lors de son pivotement autour de l'axe AA. Typiquement, l'angle α de pivotement entre ces deux positions angulaires extrêmes est inférieur ou égale à 170° et supérieur à 0°, préférentiellement supérieur à 90°, par exemple un angle de l'ordre de 150°.On the Figures 1 and 4 , the attachment device 6 is in the rest position, while on the Figures 2 , 3 and 5 , it is in the hooking position, that is to say completely unfolded. These two positions therefore constitute the extreme angular positions that the attachment device 6 can adopt when it is pivoted about the axis AA. Typically, the pivot angle α between these two extreme angular positions is less than or equal to 170 ° and greater than 0 °, preferably greater than 90 °, for example an angle of the order of 150 °.

On peut prévoir un espacement non nul entre le dispositif d'accrochage 6 et le capotage 1, lorsque le dispositif d'accrochage 6 est en position totalement repliée, c'est-à-dire « de repos ». Pour ce faire, on aménage une (ou plusieurs) butée 13 entre la surface externe du capotage 1, à savoir sa face arrière 2a, et le dispositif d'accrochage 6 de sorte que ce dernier vienne reposer contre la butée 13, lorsque le dispositif d'accrochage 6 est en position « de repos », et donc ne vienne pas s'incruster dans une empreinte ou un logement du capotage 1. La (ou les) butée(s) 13 va donc stopper la course en pivotement angulaire du dispositif d'accrochage 6 lorsque celui-ci est replié par l'utilisateur pour le faire passer de sa position d'accrochage à sa position de repos, puisque le dispositif d'accrochage 6 va rencontrer la butée 13, c'est-à-dire venir buter contre celle-ci. Ainsi, il restera toujours un espacement minimum entre le dispositif d'accrochage 6 et le capotage 1 qui permettra alors à l'utilisateur de saisir facilement le dispositif d'accrochage 6 et de le faire pivoter vers sa position d'accrochage. Le dispositif d'accrochage 6 est donc maintenu volontaire à une distance ou espacement minimum de la surface externe du capotage 1. La butée 13 constitue une sorte d'excroissance de hauteur H, par exemple une hauteur H de 1 mm à 15 mm, portée par exemple par la surface externe du capotage 1 et se projetant vers l'extérieur du capotage 1. La butée 13 se situe en regard du dispositif d'accrochage 6, c'est-à-dire en face du dispositif d'accrochage 6. Dit autrement la (ou les) butée 13 est prise « en sandwich » entre le dispositif d'accrochage 6 et le capotage.It is possible to provide a non-zero spacing between the attachment device 6 and the cowling 1, when the attachment device 6 is in the fully folded position, that is to say “at rest”. To do this, one (or more) stop 13 is arranged between the outer surface of the cowling 1, namely its rear face 2a, and the hooking device 6 so that the latter comes to rest against the stop 13, when the device hooking 6 is in the "rest" position, and therefore does not become embedded in an imprint or a housing of the cowling 1. The stop (or) stop (s) 13 will therefore stop the angular pivoting travel of the device hooking 6 when the latter is folded up by the user to move it from its hooking position to its rest position, since the hooking device 6 will meet the stop 13, that is to say come up against it. Thus, there will always remain a minimum spacing between the attachment device 6 and the cowling 1 which will then allow the user to easily grasp the attachment device 6 and to make it pivot towards its attachment position. The attachment device 6 is therefore kept intentionally at a minimum distance or spacing from the outer surface of the cowling 1. The stop 13 constitutes a sort of protrusion of height H, for example a height H of 1 mm to 15 mm, carried through example by the outer surface of the cowling 1 and projecting towards the outside of the cowling 1. The stop 13 is located opposite the attachment device 6, that is to say opposite the attachment device 6. Said otherwise the stop (or them) 13 is sandwiched between the fastening device 6 and the cowling.

Dans le mode de réalisation de la Figure 3, une butée 13 unique est agencée au niveau de la base 14 du capotage 1, à savoir ici sur une collerette 18 située au niveau de la base 14 du capotage 1. Toutefois, selon un autre mode de réalisation, on peut agencer plusieurs butées 13, par exemple deux butées ou plus, entre le dispositif d'accrochage 6 pivotant et le corps 2 du capotage 1. De façon analogue, sur les Figures, la butée 13 est aménagée sur le capotage 1 mais selon un autre mode de réalisation, on peut aussi agencer la butée 13 sur le dispositif d'accrochage 6 lui-même ou, selon encore un autre mode de réalisation, des butées 13 peuvent être agencées à la fois sur le dispositif d'accrochage 6 et sur le corps 2 de capotage 1.In the embodiment of the Figure 3 , a single stop 13 is arranged at the level of the base 14 of the cowling 1, namely here on a flange 18 located at the level of the base 14 of the cowling 1. However, according to another embodiment, several stops 13 can be arranged. , for example two or more stops, between the pivoting attachment device 6 and the body 2 of the cowling 1. Similarly, in the Figures, the stop 13 is provided on the cowling 1 but according to another embodiment, it is can also arrange the stop 13 on the hooking device 6 itself or, according to yet another embodiment, stops 13 can be arranged both on the hooking device 6 and on the body 2 of the cowling 1 .

De façon générale, comme illustré sur les Figures, le dispositif d'accrochage 3 forme une structure tridimensionnelle incurvée venant ceinturer le corps 2 de capotage, lorsque le dispositif d'accrochage 6 est en position de repos.Generally, as illustrated in the Figures, the fastening device 3 forms a curved three-dimensional structure coming to surround the cowling body 2, when the fastening device 6 is in the rest position.

Plus précisément, la structure tridimensionnelle incurvée formant le dispositif d'accrochage 6 comprend deux bras, à savoir un bras droit 6a et un bras gauche 6b, venant prendre le corps 2 de capotage sensiblement « en sandwich », lorsque le dispositif d'accrochage 6 est en position de repos. Chacun des bras 6a, 6b porte une encoche de fixation 16 servant à l'accrochage de l'ensemble à un support, tel un barreau de lit d'hôpital ou analogue. Chaque encoche de fixation 16 a une forme arquée, par exemple conformée en arc de cercle, comme illustré en Figure 2, de manière à épouser au mieux la forme d'un barreau tubulaire de lit, de brancard, de fauteuil roulant ou autre.More specifically, the curved three-dimensional structure forming the attachment device 6 comprises two arms, namely a right arm 6a and a left arm 6b, taking the cowling body 2 substantially “sandwiched”, when the attachment device 6 is in the rest position. Each of the arms 6a, 6b carries a fixing notch 16 serving to attach the assembly to a support, such as a hospital bed bar or the like. Each fixing notch 16 has an arcuate shape, for example shaped like an arc of a circle, as illustrated in Figure 2 , so as to best match the shape of a tubular bed bar, stretcher, wheelchair or other.

En position de rangement, le dispositif d'accrochage 6 vient se positionner autour du corps 2 de capotage de manière à minimiser l'encombrement général du capotage 1, lorsque le dispositif d'accrochage 3 est replié comme sur la figure 2. Lorsque la structure tridimensionnelle formant le dispositif d'accrochage 6 est repliée, elle fait saillie extérieurement mais sans pour autant augmenter l'encombrement global du capotage 1. Le dispositif d'accrochage 6 vient alors au contact ou quasi contact de la butée 13 en recouvrant la butée 13.In the storage position, the attachment device 6 is positioned around the cowling body 2 so as to minimize the general bulk of the cowling 1, when the attachment device 3 is folded up as on the figure 2 . When the three-dimensional structure forming the fastening device 6 is folded back, it protrudes outwardly but without increasing the overall size of the cowling 1. The fastening device 6 then comes into contact or quasi contact with the stop 13 by covering the stop 13.

Le dispositif d'accrochage 6 comporte donc une extrémité aval libre portant les bras 6a, 6b, et une extrémité amont venant se fixer en pivotement (axe de rotation AA) au capotage 1, de préférence aux montants-supports 5 du capotage 1. Une ouverture peut être prévue dans la paroi du corps 2 de capotage 1 pour permettre et/ou faciliter le pivotement du dispositif d'accrochage 6 de sa position de repos à celle d'accrochage, ou inversement.The hooking device 6 therefore comprises a free downstream end carrying the arms 6a, 6b, and an upstream end which is pivotally fixed (axis of rotation AA) to the cowling 1, preferably to the support posts 5 of the cowling 1. A opening can be planned in the wall of the body 2 of the cowling 1 to allow and / or facilitate the pivoting of the attachment device 6 from its rest position to that of attachment, or vice versa.

Le dispositif d'accrochage 6 peut être formé de plastique, de métal ou d'une combinaison des deux.The hooking device 6 can be formed of plastic, metal or a combination of the two.

Par ailleurs, dans une variante de réalisation, la structure tridimensionnelle constituant le dispositif d'accrochage 6 comprend une ouverture centrale 17, laissant apparaitre le raccord de remplissage 11, lorsque le dispositif d'accrochage 6 est en position de repos, c'est-à-dire replié et au contact de la butée 13. Ceci permet à l'utilisateur de remplir la bouteille 10 en gaz frais, sans avoir à déplier le dispositif d'accrochage 6, c'est-à-dire en laissant le dispositif d'accrochage 6 dans sa position de repos.Furthermore, in an alternative embodiment, the three-dimensional structure constituting the attachment device 6 comprises a central opening 17, revealing the filling connection 11, when the attachment device 6 is in the rest position, that is to say. that is to say folded up and in contact with the stop 13. This allows the user to fill the cylinder 10 with fresh gas, without having to unfold the hooking device 6, that is to say leaving the device 'hooking 6 in its rest position.

Selon la présente invention, afin d'assurer un maintien du dispositif d'accrochage 6 en position stable, lorsqu'il est déplié ou replié, et un passage aisé d'une position à l'autre, sans engendrer une complexification importante du capotage, on prévoit deux doigts D, c'est-à-dire deux expansions en saillie, portés par ledit dispositif d'accrochage 6 coopérant avec deux logements L portés par le capotage 1, de préférence par les montants-supports 5 du capotage 1. Par exemple, les logements L peuvent être aménagés dans le corps de capotage lui-même, dans des expansions de parois solidaires dudit corps 2 de capotage, dans les montants-supports 5, ou dans des éléments fixés à ou solidaire desdits montants-supports 5 ou du corps de capotage 2.According to the present invention, in order to ensure that the attachment device 6 is held in a stable position, when it is unfolded or folded, and easy passage from one position to another, without causing significant complexity of the cowling, two fingers D are provided, that is to say two protruding expansions, carried by said hooking device 6 cooperating with two housings L carried by the cowling 1, preferably by the support uprights 5 of the cowling 1. By example, the housings L can be arranged in the cowling body itself, in wall expansions integral with said cowling body 2, in the support posts 5, or in elements fixed to or integral with said support uprights 5 or of the cover body 2.

Les logements L présentent une forme particulière, comme expliqué ci-après.The L housings have a particular shape, as explained below.

Comme illustré sur les Figures 4, 5 et 7, le pivotement, c'est-à-dire l'indexage angulaire, du dispositif d'accrochage 6 par rapport au capotage 1 est assuré par deux doigts D portés par le dispositif d'accrochage 6. Ces deux doigts D se projetant en éloignement par rapport au dispositif d'accrochage 6 et sont orientés dans des directions opposées l'un par rapport à l'autre. Ils sont agencés sur un axe BB parallèle à l'axe de rotation AA, ledit axe BB, encore appelé 'axe mobile', est mobile en pivotement, c'est-à-dire en rotation par rapport à l'axe AA est lui est fixe, i.e. immobile.As shown on Figures 4 , 5 and 7 , the pivoting, that is to say the angular indexing, of the hooking device 6 relative to the cowling 1 is ensured by two fingers D carried by the hooking device 6. These two fingers D projecting away relative to the hooking device 6 and are oriented in opposite directions relative to each other. They are arranged on an axis BB parallel to the axis of rotation AA, said axis BB, also called 'movable axis', is movable in pivoting, that is to say in rotation with respect to the axis AA is itself is fixed, ie immobile.

Comme détaillé sur la Figure 6, les deux doigts D coopérant chacun avec l'un des deux logements L portés par exemple par les montants supports 5 de capotage 1, ou par exemple aménagés dans le corps 2 de capotage, chaque doigt D venant s'insérer dans l'un desdits logements L, chaque doigt D étant mobile au sein d'un desdits logements L.As detailed on the Figure 6 , the two fingers D each cooperating with one of the two housings L carried for example by the support uprights 5 of the cowling 1, or for example arranged in the body 2 of the cowling, each finger D being inserted into one of said housings L, each finger D being movable within one of said housings L.

Chaque logement L est configuré pour présenter au moins 3 sections successives S1, S2, S3 comprenant une première section d'extrémité S1 et une seconde section d'extrémité S2 reliées l'une à l'autre par une section intermédiaire S3 qui forme une sorte de couloir de guidage pour chaque doigt D, lorsqu'il se déplace dans cette section intermédiaire S3.Each housing L is configured to have at least 3 successive sections S1, S2, S3 comprising a first end section S1 and a second end section S2 connected to each other by an intermediate section S3 which forms a sort of guide passage for each finger D, when it moves in this intermediate section S3.

Les première et seconde sections d'extrémité S1, S2 ont un profil interne de forme générale semi-circulaire, alors que la section intermédiaire S3 a une forme générale oblongue, c'est-à-dire allongée.The first and second end sections S1, S2 have an internal profile of generally semi-circular shape, while the intermediate section S3 has a generally oblong, that is to say elongated, shape.

Chaque doigt D vient se positionner dans la première section d'extrémité S1 du logement L dans lequel il est inséré, lorsque le dispositif d'accrochage 6 est en position d'accrochage et, à l'inverse, dans la seconde section d'extrémité S2 de ce logement, lorsque le dispositif d'accrochage 6 est en position de repos.Each finger D is positioned in the first end section S1 of the housing L in which it is inserted, when the hooking device 6 is in the hooking position and, conversely, in the second end section S2 of this housing, when the hooking device 6 is in the rest position.

On voit sur les Figures 4, 5 et 6 que la section intermédiaire S3 oblongue comprend deux parois internes P1, P2 agencées face à face qui forment des guides pour les deux doigts D pendant leur déplacement dans la section intermédiaire S3, lors de leur passage de la première à la seconde section d'extrémité S1, S2 des logements L, ou inversement. Les deux parois internes P1, P2 agencées face à face, sont courbes.We see on the Figures 4 , 5 and 6 that the oblong intermediate section S3 comprises two internal walls P1, P2 arranged face to face which form guides for the two fingers D during their movement in the intermediate section S3, during their passage from the first to the second end section S1 , S2 of the L housings, or vice versa. The two internal walls P1, P2 arranged face to face, are curved.

Afin d'assurer un maintien en position stable, la première et la seconde section d'extrémité S1, S2 sont séparées de la section intermédiaire S3 par des restrictions de paroi R1, R2 se projetant radialement vers l'intérieur de la section intermédiaire S3, comme visible sur les Figures 4 et 5. Ces restrictions de paroi R1, R2 forment en quelque sorte des butées servant à créer un point dur et à bien retenir les doigts D, lorsqu'ils sont positionnés dans les première et seconde sections d'extrémité S1, S2, c'est-à-dire en position de repos ou d'accrochage.In order to ensure a maintenance in a stable position, the first and the second end section S1, S2 are separated from the intermediate section S3 by wall restrictions R1, R2 projecting radially inwards from the intermediate section S3, as visible on Figures 4 and 5 . These wall restrictions R1, R2 form a kind of stops serving to create a hard point and to properly retain the fingers D, when they are positioned in the first and second end sections S1, S2, that is to say - say in the rest or hooked position.

Le passage des restrictions de paroi R1, R2 par les doigts D est facilité grâce à une fente axiale F aménagée à l'extrémité libre EL des doigts D, comme illustré en Figure 7. De préférence, les fentes F sont aménagées dans une partie des doigts D réalisée en un matériau élastiquement déformable, par exemple un polymère.The passage of the wall restrictions R1, R2 by the fingers D is facilitated thanks to an axial slot F provided at the free end EL of the fingers D, as illustrated in Figure 7 . Preferably, the slots F are provided in a part of the fingers D made of an elastically deformable material, for example a polymer.

Cette fente F sépare chaque doigt D en deux demi-doigts. Cette structure permet aux doigts D de se déformer élastiquement et localement au passage des restrictions de paroi R1, R2 puisque, lorsque les doigts D passent entre les restrictions de paroi R1, R2, celles-ci agissent mécaniquement sur les deux demi-doigts et les forcent à se rapprocher l'une de l'autre en comblant l'espacement entre eux, c'est-à-dire la fente F. Le diamètre des doigts D s'en trouve dès lors diminué au niveau des extrémités libres EL permettant ainsi le passage des doigts D entre les restrictions de paroi R1, R2, y compris si le diamètre des doigts D au niveau desdites extrémités libres EL est, avant déformation, légèrement supérieur au passage P existant entre lesdites restrictions de paroi R1, R2.This slot F separates each finger D into two half-fingers. This structure allows the fingers D to deform elastically and locally when the wall restrictions R1, R2 pass since, when the fingers D pass between the wall restrictions R1, R2, they act mechanically on the two half-fingers and the force them to come closer to one another by filling in the space between them, that is to say the slot F. The diameter of the fingers D is consequently reduced at the level of the free ends EL thus allowing the passage of the fingers D between the wall restrictions R1, R2, including if the diameter of the fingers D at the level of said free ends EL is, before deformation, slightly greater than the passage P existing between said wall restrictions R1, R2.

Cette déformation élastique des doigts évite par ailleurs une usure prématurée des restrictions de paroi R1, R2 et des doigts D.This elastic deformation of the fingers also prevents premature wear of the wall restrictions R1, R2 and of the fingers D.

Toutefois, la largeur L des restrictions de paroi R1, R2 est préférentiellement légèrement supérieure à celle des sections cylindriques au niveau desdites extrémités libres EL des doigts D pour permettre leur passage au travers desdites restrictions de paroi R1, R2. Dans cas, les fentes F ne sont pas nécessaires.However, the width L of the wall restrictions R1, R2 is preferably slightly greater than that of the cylindrical sections at the level of said free ends EL of the fingers D to allow their passage through said wall restrictions R1, R2. In this case, the F slots are not necessary.

De préférence, largeur des restrictions de paroi R1, R2 est comprise entre 0.5 et 2 mm.Preferably, the width of the wall restrictions R1, R2 is between 0.5 and 2 mm.

Avantageusement, la première et la seconde section d'extrémité S1, S2 ont une paroi interne de forme semi-circulaire SC s'ouvrant sur la section intermédiaire S3, au travers des restrictions de paroi R1, R2. De préférence, le jeu entre le rayon Ro des première et seconde sections d'extrémité S1, S2 de forme semi-circulaire et le rayon de D est compris entre 0.1 et 1 mm.Advantageously, the first and the second end section S1, S2 have an internal wall of semicircular shape SC opening onto the intermediate section S3, through the wall restrictions R1, R2. Preferably, the clearance between the radius Ro of the first and second end sections S1, S2 of semi-circular shape and the radius of D is between 0.1 and 1 mm.

Une bouteille de gaz équipée d'un capotage selon l'invention est particulièrement bien adaptée au stockage et à la distribution de gaz sous pression, en particulier de gaz médical, notamment un gaz choisi parmi l'oxygène, air, N2O/O2, He/O2 et NO/azote.A gas cylinder equipped with a cover according to the invention is particularly well suited to the storage and distribution of pressurized gas, in particular medical gas, in particular a gas chosen from oxygen, air, N 2 O / O 2 , He / O 2 and NO / nitrogen.

Claims (14)

  1. Protective hood (1) for gas cylinder (10) equipped with a tap unit, comprising:
    - a hood body (2) forming a protective shell delimiting an internal volume designed to receive all or some of the tap unit (3), and
    - a hanging device (6) pivoting about an axis (AA) between several angular positions comprising a rest position, wherein the hanging device (6) is totally folded and an attachment position, wherein the hanging device (6) is unfolded,
    characterised in that:
    - the pivoting of the hanging device (6) with respect to the hood (1) is ensured by two fingers (D) supported by the hanging device (6), said two fingers (D) are projected by extending with respect to the hanging device (6) and being oriented in directions opposite one another, said two fingers (D) engaging with two housings (L) supported by the hood (1), each finger (D) being inserted in one of said housings (L),
    - each housing (L) is configured to have at least 3 successive sections (S1, S2, S3) comprising a first end section (S1) and a second end section (S2) connected to one another by an intermediate section (S3), the first and second end sections (S1, S2) having an internal profile of general semi-circular shape, and the intermediate section (S3) having an oblong shape, the first and the second end section (S1, S2) being separated from the intermediate section (S3) by wall restrictions (R1, R2) being projected radially inwards from the intermediate section (S3), and
    - each finger (D) being positioned in the first end section (S1) of the housing (L) wherein it is inserted, when the hanging device (6) is in the attachment position and in the second end section (S2) of said housing, when the hanging device (6) is in the rest position.
  2. Hood according to the preceding claim, characterised in that the two housings (L) are arranged in the hood body (2) or in support mounts (5) supported by the hood (1), preferably in support mounts (5) supported by the hood (1).
  3. Hood according to claim 2, characterised in that the support mounts support a carrying handle.
  4. Hood according to one of the preceding claims, characterised in that the wall restrictions (R1, R2) form holding stops configured to hold each finger (D) in a stable position in the first or in the second end section (S1, S2) of the housing (L), wherein said finger (D) is inserted, when the hanging device (6) is in the attachment position or in the rest position, respectively.
  5. Hood according to one of the preceding claims, characterised in that, when a user manually actuates the hanging device (6) to make it pass from the rest position to the attachment position, each finger (D) passes successively from the second end section (S2) of the housing (L) to the intermediate section (S3) and to the first end section (S1) of the housing (L), wherein said finger (D) is inserted, and vice versa.
  6. Hood according to one of the preceding claims, characterised in that the intermediate section (S3) comprises two internal walls (P1, P2) arranged opposite one another and forming guides for the two fingers (D) during their movement between the first and second end sections (S1, S2) of the housings (L).
  7. Hood according to one of claims 1 to 5, characterised in that the intermediate section (S3) comprises two internal walls (P1, P2) arranged opposite one another, said internal walls (P1, P2) being curved.
  8. Hood according to one of the preceding claims, characterised in that the two fingers (D) being projected in extension with respect to the hanging device (6) are supported by an axis (BB) parallel to the axis (AA).
  9. Hood according to claim 8, characterised in that the axis (BB) on which are arranged two fingers (D) is mobile by pivoting with respect to said axis (AA).
  10. Hood according to one of the preceding claims, characterised in that the two fingers (D) are at least partially cylindrical.
  11. Hood according to one of the preceding claims, characterised in that the wall restrictions (R1, R2) each have a passage (P) having a passage width greater than the diameter of the two fingers (D), such that the two fingers (D) can pass into said passage width.
  12. Hood according to one of claims 1 to 10, characterised in that
    - the wall restrictions (R1, R2) each have a passage (P) having a passage width less than or equal to the diameter of the two fingers (D), and
    - each finger (D) comprises a free end (EL) made of an elastically deformable material and comprising an axial slot (F) separating each finger (D) into two half-fingers,
    such that each finger (D) undergoes an elastic deformation, during its passage between the wall restrictions (R1, R2), by elastic attachment of the two half-fingers towards one another.
  13. Gas container (10), in particular a gas cylinder, equipped with a tap unit (3) and a protective hood (1) arranged around at least one portion of said tap unit (3), characterised in that it comprises a protective hood (1) according to one of the preceding claims.
  14. Use of a gas container according to claim 13, in particular a gas cylinder, to store or distribute a gas or gaseous mixture, preferably the gas or gaseous mixture is selected from among oxygen, air, N2O/O2, He/O2 and NO/nitrogen.
EP19155373.4A 2018-02-27 2019-02-04 Protective hood with pivoting attachment system for gas cylinder Active EP3531006B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1851707A FR3078380B1 (en) 2018-02-27 2018-02-27 PROTECTIVE COVER WITH PIVOTING LOCKING SYSTEM FOR GAS CONTAINER

Publications (2)

Publication Number Publication Date
EP3531006A1 EP3531006A1 (en) 2019-08-28
EP3531006B1 true EP3531006B1 (en) 2020-11-25

Family

ID=62017538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19155373.4A Active EP3531006B1 (en) 2018-02-27 2019-02-04 Protective hood with pivoting attachment system for gas cylinder

Country Status (2)

Country Link
EP (1) EP3531006B1 (en)
FR (1) FR3078380B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD923137S1 (en) * 2017-12-22 2021-06-22 L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Gas bottle cap
USD923138S1 (en) * 2017-06-22 2021-06-22 L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Gas bottle cap

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
WO2024015052A1 (en) 2022-07-13 2024-01-18 Praxair Technology, Inc. Protective shroud for a valve integrated pressure regulator (vipr)

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Publication number Priority date Publication date Assignee Title
FR2706016B1 (en) 1993-06-03 1995-07-28 France Prod Oxygenes Co Gas bottle cap.
FR2807820B1 (en) 2000-04-17 2002-06-14 Air Liquide Sante Int GAS BOTTLE WITH PROTECTIVE COVERS FOR USE IN THE MEDICAL FIELD
DE10057469C2 (en) * 2000-11-20 2003-04-17 Messer Griesheim Gmbh Protective cap for compressed gas cylinders with a holding rail
EP2116332B1 (en) * 2008-05-05 2011-08-17 Fever Industrial Co. Ltd. Portable device for supplying compressed CO2 from a pressure vessel to a pneumatic tool
FR2976048B1 (en) * 2011-06-01 2014-05-23 Air Liquide Medical Systems PROTECTIVE HAT FOR PRESSURE FLUID RESERVOIR TANK
EP2586481A1 (en) * 2011-10-27 2013-05-01 Linde Aktiengesellschaft Cover for a valve cap of a gas cylinder
LU92388B1 (en) * 2014-03-03 2015-09-04 Luxembourg Patent Co Sa Cover for gas cylinder tap
FR3018584B1 (en) * 2014-03-12 2016-04-15 Air Liquide PROTECTIVE COVERAGE WITH PIVOTING CLAMP SYSTEM FOR GAS BOTTLE
FR3052848A1 (en) * 2016-06-21 2017-12-22 L'air Liquide Sa Pour L'etude Et L'exploitation Des Procedes Georges Claude MULTI-PART PROTECTION COVER FOR GAS BOTTLE

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD923138S1 (en) * 2017-06-22 2021-06-22 L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Gas bottle cap
USD923137S1 (en) * 2017-12-22 2021-06-22 L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Gas bottle cap

Also Published As

Publication number Publication date
EP3531006A1 (en) 2019-08-28
FR3078380B1 (en) 2020-01-31
FR3078380A1 (en) 2019-08-30

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