EP1069382B1 - Air diffuser for air conditioning and a manufacturing method for the same - Google Patents

Air diffuser for air conditioning and a manufacturing method for the same Download PDF

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Publication number
EP1069382B1
EP1069382B1 EP00870157A EP00870157A EP1069382B1 EP 1069382 B1 EP1069382 B1 EP 1069382B1 EP 00870157 A EP00870157 A EP 00870157A EP 00870157 A EP00870157 A EP 00870157A EP 1069382 B1 EP1069382 B1 EP 1069382B1
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EP
European Patent Office
Prior art keywords
spindle
support armature
frame
central
baffle
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Expired - Lifetime
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EP00870157A
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German (de)
French (fr)
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EP1069382A1 (en
Inventor
Hubert M. Benjamin
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Euro-Register
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Euro-Register
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/062—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser having one or more bowls or cones diverging in the flow direction

Definitions

  • circular diffusers consisting of a outer envelope, fixed to the ceiling, and provided with deflection to direct the air supply according to the position of these. By adjusting the position of these elements relative to the outer casing, one can thus obtain for example a blowing horizontal which keeps the air to a certain extent on the ceiling or a vertical blowing, with shower effect, as well as blowing intermediate.
  • All known diffusers have the disadvantage of being made up of a very large number of parts, necessary in particular for assembly between the outer casing and the various elements air deflection as well as to allow adjustment of the air supply the air.
  • the assembly of known diffusers generally requires a large number of manual operations, such as drilling, bolting or riveting, which increases the cost of these diffusers.
  • no safety measures are designed to prevent unintentional detachment of parts, which can lead to accidents, especially during assembly.
  • the object of the present invention is to overcome these disadvantages and to make a diffuser suitable for air conditioning with a minimum number of constituent parts, by means basic and inexpensive operations, performed on machines traditional of a company in the metal manufacturing sector, these parts being themselves made from semi-finished products extremely simple and inexpensive.
  • the first support frame is also welded to the frame.
  • the first support frame is formed of two first metal bands identical stamps which each have a first part flat central unit provided in the center with a first part rounded in shape half-sleeve, a part folded obliquely at each end of the first flat central part and a part folded down at the ends free of each oblique part, the first two bands metallic being welded to each other by their first central part plane while being arranged symmetrically on either side of a first plane of symmetry, so as to form a first complete socket at using their assembled half-sockets, the folded parts being welded to a flange presented by the frustoconical central part of the frame, on the wall side.
  • each second support frame is formed of two second identical stamped metal bands, each with a second flat central part provided in the center with a second part rounded in the shape of a half-socket, and at each end of the second flat central part, a split free end part, the two identical second metal strips being welded one to the other the other by their second flat central part being arranged symmetrically on either side of a second plane of symmetry, of so as to form a second complete socket using their half-sockets assembled, said split free ends being pinched on an edge of a central opening presented by each deflector intermediate.
  • the means of restraint cooperating with the axis to allow its displacement relative to the frame are located inside said first socket.
  • the present invention also relates to a method of manufacture of a diffuser.
  • the process does not include drilling, no bolting, no riveting.
  • the pieces forming the frames of supports can be simple metal bands which are stamped to the press to take their final shape and which are then welded between them, and possibly further welded to the frame in the case of the first support frame. Extensive process automation is thus obtained by using current equipment in the workshop.
  • the diffuser shown in Figure 1 includes a frame 1 to be fixed on a wall or ceiling not shown.
  • the frame has a flat part 2 at the periphery and present in the center a frustoconical central part 3.
  • This has on the wall side a inlet opening for the air to be diffused which is bordered by a collar 4 coaxial with the inlet opening.
  • the piping necessary for the supply in air can be connected to this flange in a manner not illustrated.
  • An axis 5, tubular and partially threaded in the example of realization, is supported on the frame 1 by means of a frame support 6, so as to extend in a perpendicular direction at the opening of the diffuser, direction which is illustrated by the dashed line 7, and at be able to be moved relative to the frame along this direction.
  • a central deflector 8 of frustoconical shape is fixed to the axis 5 on the side of this one which is opposite the wall.
  • the end of the axle, hollow at this point, can be fixed to the central deflector by a simple crimping using a punch.
  • This example of realization includes an intermediate deflector 9 of frustoconical shape, which also is fixed to the axis 5, by means of a support frame 10. It is disposed between the frustoconical part 3 of the frame and the central deflector 8. It has, in this example, an inlet opening on the wall side, which allows an air passage in its center, and a diffusion opening of the side opposite the wall, which is larger in diameter than the opening intake.
  • the support frame 6 is, in the illustrated embodiment, formed of two parts 11 and 12, stamped in a metal strip.
  • they are stamped with identical manner and they each have a flat central part 13 provided in its center with a rounded part 14 in the form of a half-socket, and, at each end of the flat central part 13, a oblique folded part 15, at the free end of which is folded a folded down part 16.
  • the two parts stamped in one operation are then arranged symmetrically on either side of a plane of symmetry, by applying their flat central part 13 one against the other and by welding them thus, for example by spot welding.
  • Half-sockets 14 assemblies then form a socket 17 complete in which axis 5 can be passed.
  • one of the two half-sockets 14 has been very slightly pressed so as to form a tenon 18 which extends radially inside the socket, to a depth approximately equivalent to the depth of the thread presented by the axis 5.
  • the axis can be moved axially in the socket 17, by screwing.
  • the armature support 10 is also formed of two parts 20 and 21, stamped in a metal strip. These pieces are stamped so identical and each has a flat central part 22, provided in the center with a rounded part 23 in the form of a half-socket. AT each end of this flat part 22 is provided a split part 24 at its free end. In the illustrated embodiment, the parts 24 slits are folded obliquely to the flat central part.
  • the two pieces 20 and 21, folded and split by stamping in a single operation, are then arranged symmetrically on either side of a plane of symmetry, applying their central part plane 22 against each other and by welding them together, for example by a spot welding.
  • the assembled half-sockets 23 then form a socket 25 complete in which the axis 5 can be passed and fixed, by example by welding or pinching.
  • Axis 5 can also be previously arranged between the two half-sockets of the parts stamped, before welding, and thus be fixed directly to the reinforcement of support.
  • the method of manufacturing a diffuser according to the invention is therefore implemented in the manner next.
  • the partially threaded axis 5 is fixed to the central deflector by example by crimping, as illustrated in figure 2.
  • Strips are folded, cut, split and / or stamped so identical by a single stamping operation in a press current, forming the stamped parts 11 and 12 or respectively 20 and 21. These are then joined together so symmetrical and welded to each other, for example by points.
  • the support frame 6 is fixed to the flange 4 of the frame 1 by welding and the support frame 10 is fixed by pinching the edge of the opening intake of the intermediate deflector 9 through the split ends of stamped parts.
  • the split parts provided at the ends of the central parts 22 of stamped parts of the support frame 10 extend in the same plan as the central parts. They have been stamped to form two legs 26 and 27 separated by a slot-shaped cutout. A tab 26 of each slotted end is, during stamping, folded in oblique to the rest of the stamped part. The deflector 9 is then applied against the tab 27, of each split end, not folded when stamping. Then the legs 26 of the split ends are folded so as to extend again in the plane of the central part 22, which causes a pinching of the edge of the intake opening of the deflector 9, in the slot formed between the tab 26 and the tab 27.
  • this process has the great advantage of ease of handling since it boils down essentially by stamping in a single operation each of the parts of the support frames, which are preferably only in number of two for each reinforcement, and by the welding of these between them.
  • the fixing of these support frames to the other parts provides for a simple welding and / or pinching. Since these operations do not do not require the acquisition of special equipment, but only very common welding presses and stations and that the material first used, whether metal bands or strips for the armatures or a threaded tube for the axis, is of a very favorable cost, one obtains a very efficient manufacturing process from a cost point of view. This process also allows, by its automation, an acceleration notable for the rate of assembly.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Duct Arrangements (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Automatic Assembly (AREA)

Abstract

Diffuser has frame (1) with central truncated cone air opening (3) fitted with spindle (5) support (6) made from welded stampings. Partly threaded spindle (5) connects central deflector (8) and intermediate conical deflector (9) to wall frame using spindle support. Central deflector is riveted to spindle and intermediate deflector is attached to spindle by support (10) using welded stampings An Independent claim is also included for the manufacturing method of a diffuser.

Description

La présente invention a pour objet un diffuseur pour le conditionnement d'air destiné à l'alimentation et à l'évacuation de l'air, notamment par le plafond, dans des locaux, en particulier de grand volume, comprenant :

  • un cadre (1) à fixer sur une paroi et présentant une partie centrale tronconique (3) qui, d'un premier côté tourné vers la paroi, comporte une ouverture d'entrée pour l'air à diffuser et, d'un deuxième côté opposé à la paroi, présente une ouverture de diffusion de dimension supérieure à l'ouverture d'entrée,
  • un axe (5) qui est, par une première armature de support (6) fixée au cadre (1), supporté au centre de ladite partie centrale tronconique (3) de manière à s'étendre suivant une direction (7) perpendiculaire à l'ouverture de diffusion et à pouvoir être déplacé par rapport au cadre (1) le long de cette direction perpendiculaire, et
  • un déflecteur central (8), qui est fixé à l'axe (5) à l'opposé de la paroi,
  • ladite première armature de support (6) étant formée de premières pièces estampées (11, 12), soudées entre elles, et étant pourvue de moyens de retenue (18) coopérant avec l'axe (5) pour permettre son déplacement susdit (v. par exemple US-A-3.103.869).
The subject of the present invention is a diffuser for air conditioning intended for supplying and discharging air, in particular by the ceiling, in premises, in particular of large volume, comprising:
  • a frame (1) to be fixed on a wall and having a frustoconical central part (3) which, on a first side facing the wall, has an inlet opening for the air to be diffused and, on a second side opposite the wall, has a diffusion opening of dimension greater than the entry opening,
  • an axis (5) which is, by a first support frame (6) fixed to the frame (1), supported at the center of said frustoconical central part (3) so as to extend in a direction (7) perpendicular to the diffusion opening and being able to be moved relative to the frame (1) along this perpendicular direction, and
  • a central deflector (8), which is fixed to the axis (5) opposite the wall,
  • said first support frame (6) being formed of first stamped parts (11, 12), welded together, and being provided with retaining means (18) cooperating with the axis (5) to allow its aforesaid movement (see. for example US-A-3,103,869).

On connaít des diffuseurs rectangulaires à plusieurs déflecteurs fixes, non réglables (v. par exemple US-A-4.714.009). We know rectangular diffusers with several fixed, non-adjustable deflectors (see for example US-A-4,714.009).

On connaít aussi des diffuseurs circulaires constitués d'une enveloppe extérieure, fixée au plafond, et pourvus d'éléments de déviation permettant d'orienter le soufflage de l'air en fonction de la position de ceux-ci. Par réglage de la position de ces éléments par rapport à l'enveloppe extérieure, on peut ainsi obtenir par exemple un soufflage horizontal qui maintient dans une certaine mesure l'air au plafond ou un soufflage vertical, avec effet de douche, ainsi que des soufflages intermédiaires.We also know circular diffusers consisting of a outer envelope, fixed to the ceiling, and provided with deflection to direct the air supply according to the position of these. By adjusting the position of these elements relative to the outer casing, one can thus obtain for example a blowing horizontal which keeps the air to a certain extent on the ceiling or a vertical blowing, with shower effect, as well as blowing intermediate.

Tous les diffuseurs connus présentent l'inconvénient d'être constitués d'un très grand nombre de pièces, nécessaires en particulier pour l'assemblage entre l'enveloppe extérieure et les différents éléments de déviation de l'air ainsi que pour permettre un réglage du soufflage de l'air. L'assemblage des diffuseurs connus nécessite généralement un grand nombre d'opérations manuelles, comme des opérations de forage, de boulonnage ou de rivetage, ce qui grève le coût de ces diffuseurs. Par ailleurs, lors du réglage de la position mutuelle entre l'enveloppe extérieure et les éléments de déviation, aucune mesure de sécurité n'est prévue pour empêcher un détachement involontaire des pièces, ce qui peut mener à des accidents notamment au cours du montage.All known diffusers have the disadvantage of being made up of a very large number of parts, necessary in particular for assembly between the outer casing and the various elements air deflection as well as to allow adjustment of the air supply the air. The assembly of known diffusers generally requires a large number of manual operations, such as drilling, bolting or riveting, which increases the cost of these diffusers. Through elsewhere, when adjusting the mutual position between the envelope external and deflection elements, no safety measures are designed to prevent unintentional detachment of parts, which can lead to accidents, especially during assembly.

La présente invention a pour but de surmonter ces inconvénients et de fabriquer un diffuseur adapté au conditionnement d'air présentant un nombre minimal de pièces constitutives, au moyen d'opérations élémentaires et peu coûteuses, réalisables sur des machines traditionnelles d'une entreprise du secteur des fabrications métalliques, ces pièces étant elles-mêmes fabriquées à partir de produits semi-finis extrêmement simples et peu coûteux.The object of the present invention is to overcome these disadvantages and to make a diffuser suitable for air conditioning with a minimum number of constituent parts, by means basic and inexpensive operations, performed on machines traditional of a company in the metal manufacturing sector, these parts being themselves made from semi-finished products extremely simple and inexpensive.

On résout ces problèmes suivant l'invention par un diffuseur pour le conditionnement d'air dans des locaux tel qu'indiqué au début, ce diffuseur étant caractérisé en ce que l'axe est au moins partiellement fileté, en ce que les moyens de retenue coopérant avec l'axe permettent son déplacement par rapport au cadre par vissage/dévissage, et en ce que le diffuseur comprend en outre

  • au moins un déflecteur conique intermédiaire, qui est fixé à l'axe entre la partie tronconique du cadre et le déflecteur central par une deuxième armature de support,
  • chaque deuxième armature de support susdite étant formée de deuxièmes pièces estampées, soudées entre elles. Un tel diffuseur présente l'avantage de prévoir un assemblage des différents éléments uniquement à l'aide de pièces estampées, soudées entre elles. Ces opérations peuvent donc être effectuées par une presse courante et par un poste de soudure, par exemple par points, à un coût extrêmement faible et avec une main-d'oeuvre réduite.
These problems are solved according to the invention by a diffuser for air conditioning in premises as indicated at the beginning, this diffuser being characterized in that the axis is at least partially threaded, in that the retaining means cooperating with the axis allow its displacement relative to the frame by screwing / unscrewing, and in that the diffuser further comprises
  • at least one intermediate conical deflector, which is fixed to the axis between the frustoconical part of the frame and the central deflector by a second support frame,
  • each second aforementioned support frame being formed of second stamped parts, welded together. Such a diffuser has the advantage of providing an assembly of the different elements only using stamped parts, welded together. These operations can therefore be carried out by a standard press and by a welding station, for example by spot welding, at an extremely low cost and with reduced labor.

Avantageusement, la première armature de support est elle aussi soudée au cadre.Advantageously, the first support frame is also welded to the frame.

Suivant une forme de réalisation de l'invention, la première armature de support est formée de deux premières bandes métalliques estampées identiques qui présentent chacune une première partie centrale plane pourvue au centre d'une première partie arrondie en forme de demi-douille, une partie pliée en oblique à chacune des extrémités de la première partie centrale plane et une partie rabattue aux extrémités libres de chacune des parties en oblique, les deux premières bandes métalliques étant soudées l'une à l'autre par leur première partie centrale plane en étant agencées symétriquement de part et d'autre d'un premier plan de symétrie, de manière à former une première douille complète à l'aide de leurs demi-douilles assemblées, les parties rabattues étant soudées à une collerette présentée par la partie centrale tronconique du cadre, du côté paroi.According to an embodiment of the invention, the first support frame is formed of two first metal bands identical stamps which each have a first part flat central unit provided in the center with a first part rounded in shape half-sleeve, a part folded obliquely at each end of the first flat central part and a part folded down at the ends free of each oblique part, the first two bands metallic being welded to each other by their first central part plane while being arranged symmetrically on either side of a first plane of symmetry, so as to form a first complete socket at using their assembled half-sockets, the folded parts being welded to a flange presented by the frustoconical central part of the frame, on the wall side.

Suivant une forme de réalisation avantageuse de l'invention, chaque deuxième armature de support est formée de deux deuxièmes bandes métalliques estampées identiques qui présentent chacune une deuxième partie centrale plane pourvue au centre d'une deuxième partie arrondie en forme de demi-douille, et, à chacune des extrémités de la deuxième partie centrale plane, une partie à extrémité libre fendue, les deux deuxièmes bandes métalliques identiques étant soudées l'une à l'autre par leur deuxième partie centrale plane en étant agencées symétriquement de part et d'autre d'un deuxième plan de symétrie, de manière à former une deuxième douille complète à l'aide de leurs demi-douilles assemblées, lesdites extrémités libres fendues étant pincées sur un bord d'une ouverture centrale présentée par chaque déflecteur intermédiaire.According to an advantageous embodiment of the invention, each second support frame is formed of two second identical stamped metal bands, each with a second flat central part provided in the center with a second part rounded in the shape of a half-socket, and at each end of the second flat central part, a split free end part, the two identical second metal strips being welded one to the other the other by their second flat central part being arranged symmetrically on either side of a second plane of symmetry, of so as to form a second complete socket using their half-sockets assembled, said split free ends being pinched on an edge of a central opening presented by each deflector intermediate.

Suivant une forme perfectionnée de réalisation de l'invention, les moyens de retenue coopérant avec l'axe pour permettre son déplacement par rapport au cadre sont situés à l'intérieur de ladite première douille. According to an improved embodiment of the invention, the means of restraint cooperating with the axis to allow its displacement relative to the frame are located inside said first socket.

D'autres détails et particularités du diffuseur suivant l'invention sont indiqués dans les revendications.Other details and features of the following diffuser the invention are indicated in the claims.

La présente invention concerne également un procédé de fabrication d'un diffuseur.The present invention also relates to a method of manufacture of a diffuser.

Suivant un mode de réalisation de l'invention, le procédé comprend

  • une fixation de l'axe sur te déflecteur central,
  • un estampage des premières pièces destinées à former la première armature de support,
  • un soudage des premières pièces estampées entre elles pour former la première armature de support, et
  • une fixation de la première armature de support sur le cadre,
ce procédé étant caractérisé en ce que l'axe est au moins partiellement fileté et en ce que le procédé comprend en outre
  • un agencement, sur au moins l'une des premières pièces destinées à former ladite première armature de support, de moyens de retenue capables de coopérer avec l'axe en permettant son déplacement par rapport au cadre par vissage/dévissage,
  • un estampage des deuxièmes pièces destinées à former chaque deuxième armature de support,
  • un soudage des deuxièmes pièces estampées entre elles pour former chaque deuxième armature de support,
  • une fixation de chaque deuxième armature de support sur l'axe, et sur un déflecteur intermédiaire correspondant,
  • un agencement par vissage/dévissage de l'axe muni du déflecteur central et de chaque deuxième armature de support pourvue d'un déflecteur intermédiaire correspondant dans la première armature de support.
According to one embodiment of the invention, the method comprises
  • fixing the axle on the central deflector,
  • stamping of the first parts intended to form the first support frame,
  • welding the first stamped parts together to form the first support frame, and
  • fixing the first support frame to the frame,
this process being characterized in that the axis is at least partially threaded and in that the process further comprises
  • an arrangement, on at least one of the first parts intended to form said first support frame, of retaining means capable of cooperating with the axis by allowing its displacement relative to the frame by screwing / unscrewing,
  • a stamping of the second parts intended to form each second support frame,
  • welding of the second stamped parts together to form each second support frame,
  • a fixing of each second support frame on the axis, and on a corresponding intermediate deflector,
  • an arrangement by screwing / unscrewing the axis provided with the central deflector and each second support frame provided with a corresponding intermediate deflector in the first support frame.

Comme on peut le constater, le procédé ne comprend ni forage, ni boulonnage, ni rivetage. Les pièces formant les armatures de supports peuvent être de simples bandes métalliques qui sont estampées à la presse pour prendre leur forme définitive et qui sont ensuite soudées entre elles, et éventuellement en outre soudées au cadre dans le cas de la première armature de support. Une automatisation poussée du procédé est ainsi obtenue en faisant appel à un appareillage courant en atelier.As can be seen, the process does not include drilling, no bolting, no riveting. The pieces forming the frames of supports can be simple metal bands which are stamped to the press to take their final shape and which are then welded between them, and possibly further welded to the frame in the case of the first support frame. Extensive process automation is thus obtained by using current equipment in the workshop.

D'autres indications concernant le procédé suivant l'invention apparaissent dans les revendications annexées.Other indications concerning the following process the invention appears in the appended claims.

D'autres détails et particularités de l'invention ressortiront de la description donnée ci-après, à titre non limitatif, d'un exemple de réalisation de diffuseur suivant l'invention.

  • La figure 1 représente une vue en perspective, explosée et partiellement brisée, d'un diffuseur suivant l'invention.
  • La figure 2 représente schématiquement l'opération de sertissage de l'axe du diffuseur sur le déflecteur central.
  • La figure 3 représente schématiquement une opération de fixation de l'axe sur un déflecteur intermédiaire par une variante d'armature de support.
  • La figure 4 représente un tronçon de l'axe où sont prévus des moyens assurant une retenue de l'axe dans le cadre du diffuseur contre un détachement involontaire.
    • Other details and particularities of the invention will emerge from the description given below, without implied limitation, of an exemplary embodiment of a diffuser according to the invention.
  • Figure 1 shows a perspective view, exploded and partially broken, of a diffuser according to the invention.
  • FIG. 2 schematically represents the crimping operation of the axis of the diffuser on the central deflector.
  • FIG. 3 schematically represents an operation for fixing the axis to an intermediate deflector by a variant of support frame.
  • FIG. 4 represents a section of the axis where means are provided ensuring a retention of the axis within the framework of the diffuser against an involuntary detachment.

    • Sur les différents dessins, des éléments identiques ou analogues sont désignés par les mêmes références.In the various drawings, identical elements or analogues are designated by the same references.

    Le diffuseur représenté sur la figure 1 comprend un cadre 1 à fixer sur une paroi ou plafond non représenté. Dans l'exemple illustré, le cadre comporte une partie plane 2 en périphérie et présente au centre une partie centrale tronconique 3. Celle-ci présente du côté paroi une ouverture d'entrée pour l'air à diffuser qui est bordée d'une collerette 4 coaxiale à l'ouverture d'entrée. La tuyauterie nécessaire à l'alimentation en air peut se raccorder à cette collerette d'une manière non illustrée.The diffuser shown in Figure 1 includes a frame 1 to be fixed on a wall or ceiling not shown. In the example shown, the frame has a flat part 2 at the periphery and present in the center a frustoconical central part 3. This has on the wall side a inlet opening for the air to be diffused which is bordered by a collar 4 coaxial with the inlet opening. The piping necessary for the supply in air can be connected to this flange in a manner not illustrated.

    Un axe 5, tubulaire et partiellement fileté dans l'exemple de réalisation, est supporté sur le cadre 1 par l'intermédiaire d'une armature de support 6, de manière à s'étendre suivant une direction perpendiculaire à l'ouverture du diffuseur, direction qui est illustrée par le trait mixte 7, et à pouvoir être déplacé par rapport au cadre le long de cette direction.An axis 5, tubular and partially threaded in the example of realization, is supported on the frame 1 by means of a frame support 6, so as to extend in a perpendicular direction at the opening of the diffuser, direction which is illustrated by the dashed line 7, and at be able to be moved relative to the frame along this direction.

    Selon l'exemple de réalisation illustré sur la figure 1, un déflecteur central 8 de forme tronconique est fixé à l'axe 5 du côté de celui-ci qui est à l'opposé de la paroi. Ainsi qu'il ressort de la figure 2, le bout de l'axe, creux à cet endroit, peut être fixé au déflecteur central par un simple sertissage à l'aide d'un poinçon. Cet exemple de réalisation comprend un déflecteur intermédiaire 9 de forme tronconique, qui lui aussi est fixé à l'axe 5, par l'intermédiaire d'une armature de support 10. Il est disposé entre la partie tronconique 3 du cadre et le déflecteur central 8. Il présente, dans cet exemple, une ouverture d'admission du côté paroi, qui permet un passage d'air en son centre, et une ouverture de diffusion du côté opposé à la paroi, qui est de diamètre supérieur à l'ouverture d'admission.According to the embodiment illustrated in FIG. 1, a central deflector 8 of frustoconical shape is fixed to the axis 5 on the side of this one which is opposite the wall. As shown in Figure 2, the end of the axle, hollow at this point, can be fixed to the central deflector by a simple crimping using a punch. This example of realization includes an intermediate deflector 9 of frustoconical shape, which also is fixed to the axis 5, by means of a support frame 10. It is disposed between the frustoconical part 3 of the frame and the central deflector 8. It has, in this example, an inlet opening on the wall side, which allows an air passage in its center, and a diffusion opening of the side opposite the wall, which is larger in diameter than the opening intake.

    On pourrait bien entendu prévoir plusieurs déflecteurs intermédiaires, de dimensions croissantes ou non.We could of course provide several deflectors intermediate, increasing or not.

    Suivant l'invention, l'armature de support 6 est, dans l'exemple de réalisation illustré, formée de deux pièces 11 et 12, estampées dans une bande métallique. Ici elles sont estampées de manière identique et elles présentent chacune une partie centrale plane 13 pourvue en son centre d'une partie arrondie 14 en forme de demi-douille, et, à chacune des extrémités de la partie centrale plane 13, une partie pliée en oblique 15, à l'extrémité libre de laquelle est repliée une partie rabattue 16.According to the invention, the support frame 6 is, in the illustrated embodiment, formed of two parts 11 and 12, stamped in a metal strip. Here they are stamped with identical manner and they each have a flat central part 13 provided in its center with a rounded part 14 in the form of a half-socket, and, at each end of the flat central part 13, a oblique folded part 15, at the free end of which is folded a folded down part 16.

    Les deux pièces estampées en une seule opération sont alors disposées de manière symétrique de part et d'autre d'un plan de symétrie, en appliquant leur partie centrale plane 13 l'une contre l'autre et en les soudant ainsi, par exemple par un soudage par points. Les demi-douilles 14 assemblées forment alors une douille 17 complète dans laquelle l'axe 5 peut être passé.The two parts stamped in one operation are then arranged symmetrically on either side of a plane of symmetry, by applying their flat central part 13 one against the other and by welding them thus, for example by spot welding. Half-sockets 14 assemblies then form a socket 17 complete in which axis 5 can be passed.

    Ainsi qu'il ressort de la figure 4, au cours de l'estampage, une des deux demi-douilles 14 a été très légèrement emboutie de manière à former un tenon 18 qui s'étend radialement à l'intérieur de la douille, sur une profondeur qui équivaut approximativement à la profondeur du filet présenté par l'axe 5. Ainsi, l'axe peut être déplacé axialement dans la douille 17, par vissage.As can be seen from FIG. 4, during stamping, one of the two half-sockets 14 has been very slightly pressed so as to form a tenon 18 which extends radially inside the socket, to a depth approximately equivalent to the depth of the thread presented by the axis 5. Thus, the axis can be moved axially in the socket 17, by screwing.

    Sur la figure 4, on peut voir à proximité de l'extrémité du filet, un évidement 19. Lors du dévissage de l'axe, et donc lorsque le déflecteur intermédiaire 9 et le déflecteur central 8 sont écartés de la partie centrale tronconique 3 du cadre 1, le tenon pénètre par gravité dans l'évidement du filet de l'axe 5. De cette manière, il n'est plus possible de continuer à dévisser l'axe, car le tenon 18 bloque le mouvement de rotation de l'axe 5. Ainsi, un détachement involontaire de l'axe et des déflecteurs à partir du cadre 1 est empêché d'une manière simple. Si on désire détacher l'axe 5 de la douille 17, il faut alors soulever légèrement l'axe 5 en direction axiale et faire sortir le tenon 18 de l'évidement 19 et poursuivre alors le dévissage jusqu'à ce que le tenon 18 sorte du filet de l'axe 5.In Figure 4, we can see near the end of the net, a recess 19. When unscrewing the axis, and therefore when the deflector intermediate 9 and the central deflector 8 are spaced from the central part frustoconical 3 of frame 1, the post penetrates by gravity into the recess of the axis 5 thread. In this way, it is no longer possible to continue unscrew the axis, because the pin 18 blocks the rotational movement of the axis 5. Thus, an involuntary detachment of the axis and the deflectors from the frame 1 is prevented in a simple way. If we want to detach axis 5 of the socket 17, it is then necessary to slightly raise the axis 5 in the direction axial and remove the post 18 from the recess 19 and then continue the unscrewing until the pin 18 comes out of the thread of the axis 5.

    Sur l'exemple de réalisation illustré sur la figure 1, l'armature de support 10 est formée elle aussi de deux pièces 20 et 21, estampées dans une bande métallique. Ces pièces sont estampées de manière identique et elles présentent chacune une partie centrale plane 22, pourvue au centre d'une partie arrondie 23 en forme de demi-douille. A chaque extrémité de cette partie plane 22 est prévue une partie 24 fendue à son extrémité libre. Dans l'exemple de réalisation illustré, les parties 24 fendues sont pliées en oblique par rapport à la partie centrale plane.In the embodiment illustrated in FIG. 1, the armature support 10 is also formed of two parts 20 and 21, stamped in a metal strip. These pieces are stamped so identical and each has a flat central part 22, provided in the center with a rounded part 23 in the form of a half-socket. AT each end of this flat part 22 is provided a split part 24 at its free end. In the illustrated embodiment, the parts 24 slits are folded obliquely to the flat central part.

    Les deux pièces 20 et 21, pliées et fendues par estampage en une seule opération, sont alors disposées de manière symétrique de part et d'autre d'un plan de symétrie, en appliquant leur partie centrale plane 22 l'une contre l'autre et en les soudant ainsi, par exemple par un soudage par points. Les demi-douilles 23 assemblées forment alors une douille 25 complète dans laquelle l'axe 5 peut être passé et fixé, par exemple par soudage ou par pinçage. L'axe 5 peut aussi être préalablement agencé entre les deux demi-douilles des pièces estampées, avant leur soudage, et être fixé ainsi directement à l'armature de support.The two pieces 20 and 21, folded and split by stamping in a single operation, are then arranged symmetrically on either side of a plane of symmetry, applying their central part plane 22 against each other and by welding them together, for example by a spot welding. The assembled half-sockets 23 then form a socket 25 complete in which the axis 5 can be passed and fixed, by example by welding or pinching. Axis 5 can also be previously arranged between the two half-sockets of the parts stamped, before welding, and thus be fixed directly to the reinforcement of support.

    Le procédé de fabrication d'un diffuseur suivant l'invention, tel qu'illustré sur la figure 1, est donc mis en oeuvre de la manière suivante. L'axe partiellement fileté 5 est fixé sur le déflecteur central par exemple par sertissage, comme illustré sur la figure 2. Des bandes métalliques sont pliées, découpées, fendues et/ou embouties de manière identique par une seule opération d'estampage dans une presse courante, en formant les pièces estampées 11 et 12 ou respectivement 20 et 21. Celles-ci sont accolées ensuite l'une à l'autre de manière symétrique et soudées l'un à l'autre, par exemple par points.The method of manufacturing a diffuser according to the invention, as illustrated in FIG. 1, is therefore implemented in the manner next. The partially threaded axis 5 is fixed to the central deflector by example by crimping, as illustrated in figure 2. Strips are folded, cut, split and / or stamped so identical by a single stamping operation in a press current, forming the stamped parts 11 and 12 or respectively 20 and 21. These are then joined together so symmetrical and welded to each other, for example by points.

    Dans l'exemple de réalisation illustré sur la figure 1, l'armature de support 6 est fixée à la collerette 4 du cadre 1 par soudage et l'armature de support 10 est fixée par pinçage du bord de l'ouverture d'admission du déflecteur intermédiaire 9 par l'intermédiaire des extrémités fendues des pièces estampées.In the embodiment illustrated in FIG. 1, the support frame 6 is fixed to the flange 4 of the frame 1 by welding and the support frame 10 is fixed by pinching the edge of the opening intake of the intermediate deflector 9 through the split ends of stamped parts.

    On pourrait bien entendu prévoir l'inverse, c'est-à-dire un pinçage de l'armature 6 sur le cadre 1 et un soudage de l'armature 10 sur le déflecteur 9. On pourrait aussi imaginer une fixation identique des deux armatures.We could of course predict the opposite, that is to say a pinching the armature 6 on the frame 1 and welding the armature 10 on the deflector 9. One could also imagine an identical fixing of the two armatures.

    Dans l'exemple de réalisation représenté sur la figure 3, les parties fendues prévues aux extrémités des parties centrales 22 des pièces estampées de l'armature de support 10 s'étendent dans le même plan que les parties centrales. Elles ont été estampées de façon à former deux pattes 26 et 27 séparées par une découpe en forme de fente. Une patte 26 de chaque extrémité fendue est, lors de l'estampage, repliée en oblique par rapport au reste de la pièce estampée. Le déflecteur 9 est alors appliqué contre la patte 27, de chaque extrémité fendue, non repliée lors de l'estampage. Puis les pattes 26 des extrémités fendues sont repliées de façon à s'étendre à nouveau dans le plan de la partie centrale 22, ce qui provoque un pinçage du bord de l'ouverture d'admission du déflecteur 9, dans la fente formée entre la patte 26 et la patte 27.In the embodiment shown in Figure 3, the split parts provided at the ends of the central parts 22 of stamped parts of the support frame 10 extend in the same plan as the central parts. They have been stamped to form two legs 26 and 27 separated by a slot-shaped cutout. A tab 26 of each slotted end is, during stamping, folded in oblique to the rest of the stamped part. The deflector 9 is then applied against the tab 27, of each split end, not folded when stamping. Then the legs 26 of the split ends are folded so as to extend again in the plane of the central part 22, which causes a pinching of the edge of the intake opening of the deflector 9, in the slot formed between the tab 26 and the tab 27.

    Comme on le comprendra aisément, ce procédé présente le grand avantage d'une facilité de manipulation puisqu'il se résume essentiellement en l'estampage en une seule opération de chacune des pièces des armatures de support, qui de préférence ne sont qu'au nombre de deux pour chaque armature, et en le soudage de celles-ci entre elles. La fixation de ces armatures de support aux autres pièces prévoit un simple soudage et/ou un pinçage. Etant donné que ces opérations ne nécessitent pas l'acquisition d'appareillages spéciaux, mais uniquement des presses et postes de soudage tout à fait courants et que la matière première utilisée, que ce soit des bandes ou feuillards métalliques pour les armatures ou un tube fileté pour l'axe, est d'un coût très favorable, on obtient un procédé de fabrication très performant au point de vue coût. Ce procédé permet, en outre, par son automatisation, une accélération notable de la cadence d'assemblage.As will be readily understood, this process has the great advantage of ease of handling since it boils down essentially by stamping in a single operation each of the parts of the support frames, which are preferably only in number of two for each reinforcement, and by the welding of these between them. The fixing of these support frames to the other parts provides for a simple welding and / or pinching. Since these operations do not do not require the acquisition of special equipment, but only very common welding presses and stations and that the material first used, whether metal bands or strips for the armatures or a threaded tube for the axis, is of a very favorable cost, one obtains a very efficient manufacturing process from a cost point of view. This process also allows, by its automation, an acceleration notable for the rate of assembly.

    Il doit être entendu que la présente invention n'est en aucune façon limitée aux formes de réalisation décrites ci-dessus et que bien des modifications peuvent y être apportées sans sortir du cadre des revendications annexées.It should be understood that the present invention is not in in no way limited to the embodiments described above and that many modifications can be made without departing from the framework of appended claims.

    Claims (14)

    1. Diffuser for air conditioning in premises including:
      a frame (1) to be fixed to a wall and presenting a tapering central part (3) which, on a first side facing the wall, incorporates an inlet aperture for the air to be diffused and, on a second side opposite the wall, presents a diffusion aperture of larger dimensions than the inlet aperture,
      a spindle (5) which is fixed to the frame (1) by means of a first support armature (6), and supported at the centre of said tapering central part (3) so as to extend in a direction (7) perpendicular to the diffusion aperture and capable of being displaced relative to the frame (1) in this perpendicular direction, and
      a central baffle (8) which is fixed to the spindle (5) opposite the wall,
      said first support armature (6) being formed from first stamped components (11, 12) welded together, and being provided with retaining means (18) cooperating with the spindle (5) to facilitate its aforementioned movement,
         characterised in that the spindle (5) is at least partially threaded, in that the retaining means (18) cooperating with the spindle facilitate its movement relative to the frame (1) by a screwing/unscrewing action, and in that the diffuser additionally includes
      at least one intermediate conical baffle (9), which is fixed to the spindle between the tapering part (3) of the frame and the central baffle (8) by a second support armature (10),
      each aforementioned second support armature (10) being formed from second stamped components (20, 21) welded together.
    2. Diffuser according to Claim 1, characterised in that the first support armature (6) is attached to the frame (1) by welding.
    3. Diffuser according to Claim 2, characterised in that the first support armature (6) is formed from two identical first stamped metal strips (11, 12) each of which has a first flat central part (13) provided at the centre with a first rounded part (14) in the form of a half-bushing, a part folded at an oblique angle (15) at each end of the first flat central part (13) and a flanged part (16) at the free ends of each of the oblique parts (15), in that the two first metal strips (11, 12) are welded together by their first flat central part (13) and are arranged symmetrically on either side of a first plane of symmetry so as to form a first complete bushing (17) by means of their assembled half-bushings, and in that the flanged parts (16) are welded to a collar (4) presented by the central tapering part (3) of the frame (1) on the wall side.
    4. Diffuser according to any of Claims 1 to 3, characterised in that each of said at least one second support armature (10) is clamped to its corresponding conical baffle (9).
    5. Diffuser according to Claim 4, characterised in that each second support armature (10) is formed from two identical second stamped metal strips (20, 21) each presenting a second flat central part (22) provided at the centre with a second rounded part (23) in the form of a half-bushing, and at each end of the second flat central part (22) a part having a bifurcated free end (24), and in that the two identical second metal strips (20, 21) are welded together by their second flat central part. (22) being arranged symmetrically on either side of a second plane of symmetry so as to form a second complete bushing (25) by means of their assembled half-bushings, and in that said bifurcated free ends are clamped to an edge of a central opening presented by each intermediate baffle (9).
    6. Diffuser according to Claim 5, characterised in that the spindle (5) is crimped on the central baffle (8) and in that it is captive in the bushing (25) of each intermediate baffle (9).
    7. Diffuser according to any of Claims 3 to 6, characterised in that the retaining means (18) cooperating with the spindle to facilitate its movement relative to the frame (1) by screwing/unscrewing are located inside the first bushing (17).
    8. Diffuser according to Claim 7, characterised in that the retaining means include a stud (18) which extends radially inside the first bushing (17) so as to be capable of sliding in a thread on the spindle (5).
    9. Diffuser according to Claim 8, characterised in that the thread presents an indentation (19) into which the stud (18) can engage by gravity when it moves opposite the indentation, thereby blocking continued movement of the spindle and allowing further movement only after the stud has retracted from the indentation.
    10. Manufacturing process for a diffuser according to any of Claims 1 to 9, characterised in that it includes:
      attachment of the spindle to the central baffle,
      stamping of the first components intended to form the first support armature,
      welding of the first stamped components together to form the first support armature, and
      attachment of the first support armature to the frame,
      characterised in that the spindle is at least partially threaded and in that the process additionally includes
      arrangement, on at least one of the first components intended to form said first support armature, of the retaining means in a manner capable of cooperating with the spindle and facilitating its movement relative to the frame by screwing/unscrewing,
      stamping of the second components intended to form each second support armature,
      welding of the second stamped components together to form each second support armature,
      attachment of each second support armature to the spindle and to a corresponding intermediate baffle,
      arrangement by screwing/unscrewing of the spindle fitted with the central baffle and of each second support armature provided with a corresponding intermediate baffle in the first support armature.
    11. Process according to Claim 10, characterised in that it includes attachment of the spindle to the central baffle by crimping.
    12. Process according to either of Claims 10 and 11, characterised in that it includes attachment of the first support armature to the frame by welding.
    13. Process according to any of Claims 10 to 12, characterised in that it includes a cutting operation during stamping of the aforementioned second components, so that they present a bifurcated free end and, after stamping, attachment of each second support armature to an intermediate conical baffle by clamping to an edge of a central opening in the latter by means of its bifurcated end.
    14. Process according to any of Claims 10 to 13, characterised in that the arrangement of the spindle in the first support armature includes screwing of the spindle into a bushing provided on the first support armature by stamping so as to present inside the bushing said retaining means cooperating with the thread on the spindle to facilitate the screwing action.
    EP00870157A 1999-07-12 2000-07-10 Air diffuser for air conditioning and a manufacturing method for the same Expired - Lifetime EP1069382B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    BE9900476 1999-07-12
    BE9900476A BE1012783A3 (en) 1999-07-12 1999-07-12 Diffuser for air conditioning and manufacturing method thereof.

    Publications (2)

    Publication Number Publication Date
    EP1069382A1 EP1069382A1 (en) 2001-01-17
    EP1069382B1 true EP1069382B1 (en) 2004-11-24

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    ID=3891999

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP00870157A Expired - Lifetime EP1069382B1 (en) 1999-07-12 2000-07-10 Air diffuser for air conditioning and a manufacturing method for the same

    Country Status (5)

    Country Link
    EP (1) EP1069382B1 (en)
    AT (1) ATE283459T1 (en)
    BE (1) BE1012783A3 (en)
    DE (1) DE60016100T2 (en)
    ES (1) ES2231149T3 (en)

    Family Cites Families (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US3103869A (en) * 1961-08-29 1963-09-17 John P Dry Adjustable air diffuser and damper
    IT1061921B (en) * 1976-06-23 1983-04-30 Lolli & C Spa IMPROVEMENT IN DIFFUSERS FOR AIR CONDITIONING SYSTEMS
    US4714009A (en) * 1986-08-04 1987-12-22 Philips Industries Inc. Ceiling air diffuser

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    Publication number Publication date
    ES2231149T3 (en) 2005-05-16
    DE60016100T2 (en) 2005-11-10
    BE1012783A3 (en) 2001-03-06
    EP1069382A1 (en) 2001-01-17
    DE60016100D1 (en) 2004-12-30
    ATE283459T1 (en) 2004-12-15

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