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EP0849521B2 - Dispositif pour contrôler l'écoulement de vapeur dans les appareils domestiques électriques utilisant la vapeur - Google Patents

Dispositif pour contrôler l'écoulement de vapeur dans les appareils domestiques électriques utilisant la vapeur Download PDF

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Publication number
EP0849521B2
EP0849521B2 EP19960830630 EP96830630A EP0849521B2 EP 0849521 B2 EP0849521 B2 EP 0849521B2 EP 19960830630 EP19960830630 EP 19960830630 EP 96830630 A EP96830630 A EP 96830630A EP 0849521 B2 EP0849521 B2 EP 0849521B2
Authority
EP
European Patent Office
Prior art keywords
tube
steam
supporting structure
tongue
plunger
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.)
Expired - Lifetime
Application number
EP19960830630
Other languages
German (de)
English (en)
Other versions
EP0849521A1 (fr
EP0849521B1 (fr
Inventor
Silvano Pozzobon
Amos Friargiu
Alessandro Ostinelli
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.)
Simac Vetrella SpA
Original Assignee
De Longhi SpA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8226078&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0849521(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by De Longhi SpA filed Critical De Longhi SpA
Priority to ES96830630T priority Critical patent/ES2162649T5/es
Priority to DE1996614554 priority patent/DE69614554T3/de
Priority to EP19960830630 priority patent/EP0849521B2/fr
Publication of EP0849521A1 publication Critical patent/EP0849521A1/fr
Application granted granted Critical
Publication of EP0849521B1 publication Critical patent/EP0849521B1/fr
Priority to GR20010401522T priority patent/GR3036662T3/el
Publication of EP0849521B2 publication Critical patent/EP0849521B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00—Hand irons
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/10—Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • D06F75/12—Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water supplied to the iron from an external source

Definitions

  • the subject of the present invention is a device for controlling the flow of steam in domestic electrical appliances that use steam, such as steam irons, steam cleaning machines, coffee machines with separate steam dispensing outlet, and so on.
  • steam flow is controlled in such domestic electrical appliances by means of an externally operated valve fitted to the tube connecting the steam generator to the part that uses the steam.
  • this valve is a needle valve in which the needle moves towards or away from a steam passage hole to vary its section and thus regulate the flow.
  • the tube has to be cut and the valve connected up leaktightly to both ends of the tube.
  • the leaktight connections may deteriorate and result in dangerous leakage of steam.
  • JP-A-05-192498 discloses a device for controlling the flow of stream in a domestic electrical appliance comprising a steam generator, an iron body for using the steam, and a tube for conveying the steam from the steam generator to the iron body.
  • the device comprises means for regulating the quantity of steam which flows towards the iron body.
  • the steam regulating means comprises an electromechanical valve system which is relative expensive and also can be subject to failure, especially because their internal parts are in contact with the steam.
  • EP-A-0.485.827 discloses a vapour controlling device for a domestic electric appliance, i.e. a vacuum cleaner, wherein a tube of elastically deformable material and able to convey the vapour from a vapour generator to the cleaning element is normally closed by a pressure element for the action of a spring.
  • the pressure element is part of a lever which can rotate on a fixed pin.
  • An electrical motor and a plurality of reduction gears associated thereto are provided for causing the rotation of the lever against the action of the spring.
  • the electric motor can be operated by the user through drive elements mounted on a handle.
  • the lever also comprises an external element by means of which it can be manually and temporarily rotated for removing the pressure element from the tube.
  • This device has some drawbacks: first of all the tube, wherein the vapour flows, is normally closed by the action of the spring; further, for allowing the passage of the vapour, the electric motor must be actuated or a relative high force must be manually applied to the external element of the lever, against the action of such a spring; moreover, the quantity of vapour which flows through the tube (5) is very difficult to regulate, both with the electric motor and with the manual operable element.
  • the object of the present invention is to overcome these drawbacks.
  • a device for controlling the flow of steam in domestic electrical appliances comprising a steam generator, means for using the steam, a tube for conveying the steam from the steam generator to the steam using means, and regulating means for regulating the quantity of steam flowing to said steam using means, characterized in that the tube is made of elastically deformable material and in that the regulating means comprises a presser part able to cooperate with the tube and connected to an external actuating elementthrough mechanically operating means.
  • the device of Fig. 1, indicated by the general reference 10, comprises a boxlike supporting structure 11, housed inside which is part of a tube T connecting a steam generator to a component that uses the steam in a domestic electrical appliance.
  • the tube T is made of elastically deformable material and is contained between side walls 12 internal to the supporting structure 11 rising from a bottom wall 11A of the structure 11 and defining an S path for the length of tube within the supporting structure 11.
  • the supporting structure includes suitable openings 11C (only one of which is shown, in dashes) through which the tube enters and exits from this structure with interference.
  • the control device 10 works as follows, with reference to Figs. 2,3,4 and 5.
  • the device Because control is achieved simply by constricting the tube T, the device includes no parts in contact with the steam so that the failures associated with known valves are avoided.
  • the control device illustrated in Figs. 6 and 7, bearing the general reference 30, has the same boxlike supporting structure 11 seen in the previous device 10.
  • the ridge 15 of the tongue 13 is depressed not by the slider 16 but by a screw 31 that screws into a hole 32 formed in the supporting structure 11.
  • the head 33 of the screw 31 is on the outside of the structure 11, over the wall 11B, and is in the form of a knob. Turning this head 33 in one direction causes the end of the screw 31 progressively to bend the tongue 13, which in turn progressively constricts the tube T as shown in Fig. 7, and, of course, by turning the head 33 in the opposite direction the tube T returns progressively to its normal configuration.
  • Figs. 8,9,10 and 11 show a third version, in which control is once again by means of a rotary movement.
  • the control device illustrated bearing the general reference 40, comprises a cylindrical housing 41 with a rhomboidal base 42 having two opposing holes 43 (only one of which is illustrated).
  • the housing 41 has an inclined base 44 and two U-shaped cutouts 45 on opposite sides and of different depths formed in the cylindrical wall of the housing.
  • a second cylindrical housing 46 having two opposing hollow columns 47 on its outside lined up with the holes 43 formed in the base 42 of the housing 41; two screws (not shown) pass through these columns 47 and holes 43 to fasten the two housings 41 and 46 together inside an apparatus that houses the device 40; the housings 41 and 46 thus form a supporting structure.
  • the housing 46 contains two inverted U-shaped cutouts 48 of different depths superimposed on the cutouts 45 formed in the housing 41 to provide two openings on opposite sides; in particular the deeper cutout 48 is superimposed on the shallower cutout 45, while on the other hand the shallower cutout 48 is superimposed on the deeper cutout 45, so that the openings are at different heights.
  • an actuating cylinder 49 and, coupled to it, a plunger 50 housed in the seat formed inside the housings 41 and 46.
  • the cylinder 49 is provided with two opposing slots 51 extending along a portion of helix, in which two corresponding opposing radial pins 52 on the plunger 50 can slide.
  • the cylinder 49 is rigidly connected to an external control knob 53 through a pin 54 of asymmetric section, integral with the cylinder, which passes through a hole 55 in the housing 46 and passes into a corresponding seat 56 in the knob.
  • the plunger 50 is arcuate on its underside, its convexity being outwards.
  • the tube T passes with interference through the abovementioned openings staggered at different heights, formed by the superimposition of the cutouts 45 and 48, and rests on the inclined bottom 44 leading from one opening to the other.
  • the plunger 50 is positioned with its arcuate end against the tube T.
  • Rotating the knob 53 in one direction rotates the cylinder 49 in the same direction and the slots 51 slide past the pins 52 in such a way that the plunger 50 is moved axially downwards, so that the rotary motion is converted into a translational motion.
  • the plunger 50 progressively constricts the tube T, as shown in Fig. 11, so that the flow of steam through the tube is regulated.
  • the knob 53 in the ,opposite direction the plunger 50 is moved axially upwards and the tube T returns progressively to its normal configuration.
  • This last version also has the advantage that by an appropriate inclination of the slots of the cylinder, small rotations of the knob result in a relatively large stroke of the plunger, making it unnecessary to rotate the knob excessively to pass from one to the other of the two extreme control positions.
  • the ends of the slots define these extreme control positions.
  • Fig. 12 shows the application of the control device 10 to a steam iron with a separate boiler.
  • the boiler is shown at A and the iron at B.
  • the control device 10 is incorporated in the boiler A and all that can be seen of it is the control part 19.
  • the tube T connects the boiler A to the iron B so that the steam is carried, as is known, from the boiler to the perforated plate of the iron B, from which the steam escapes during ironing. It is this flow of steam that can be controlled by means of the control part 19, through the process of constricting the tube T as has already been seen.
  • control devices described above can however be incorporated in any domestic electrical steam appliance in which control of the flow of steam along the tube is required.
  • the configuration of the various components of the three devices seen above can of course be varied, for example in order to satisfy different applications.
  • the tongue used in the first two versions can be replaced by some other functionally equivalent presser part.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)
  • Lift Valve (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)

Claims (11)

  1. Dispositif (10, 30, 40) pour commander l'écoulement de vapeur dans des appareils domestiques électriques comprenant :
    (a) un générateur de vapeur (A), un moyen (B) utilisant la vapeur, un tuyau (T) fait d'un matériau déformable élastiquement, pour transporter la vapeur depuis le générateur de vapeur (A) au moyen (B) utilisant la vapeur, et
    (b) un moyen de régulation pour réguler la quantité de vapeur s'écoulant vers le ledit moyen (B) utilisant la vapeur,
       caractérisé en ce que
    (c) ledit tuyau (T) est normalement dans une position ouverte du fait de l'effet de son élasticité, et en ce que
    (d) ledit moyen de régulation comprend un élément de pression (13,50) apte à coopérer avec ledit tuyau (T) de manière à le comprimer et à lui faire adopter une position au moins partiellement fermée à l'encontre de l'action de l'effort élastique dudit matériau déformable et
    (e) connecté à un élément d'actionnement externe (16, 49) par l'intermédiaire d'un moyen d'actionnement mécanique (16, 49) et déplaçable entre une position inactive à laquelle correspond ladite position ouverte du dit tuyau (T) et au moins une position de fonctionnement à laquelle correspond ladite position au moins partiellement fermée dudit tuyau (T).
  2. Dispositif selon la revendication 1, dans lequel la partie de pression est une languette élastique (13) fixée à une première extrémité à une structure de support (11) sur laquelle agit un curseur (16) d'une forme longitudinale déplaçable le long d'un guide rectiligne (17) formé dans la structure de support (11) et ayant un bord (18) qui est incliné par rapport au guide (17) et en contact avec la languette (13), le déplacement du curseur (16) entraínant une interférence progressive de son bord (18) avec la languette (13).
  3. Dispositif selon la revendication 2, dans lequel le bord (18) du curseur (16) est denté et agit sur une nervure (15) formée sur la languette (13).
  4. Dispositif selon la revendication 1, dans lequel la partie de pression est une languette élastique (13) fixée à une première extrémité à une structure de support (11) sur laquelle agit une vis (31) qui se visse dans un trou (32) ménagé dans la structure de support (11).
  5. Dispositif selon la revendication 2 ou 4, dans lequel une dent d'arrêt (20) est prévue, que la languette (13) heurte dans une position d'étranglement maximal du tuyau (T).
  6. Dispositif selon la revendication 2 ou 4, dans lequel la structure de support (11) inclut des ouvertures à travers lesquelles le tuyau (T) entre et sort de la structure avec interférence.
  7. Dispositif selon l'une quelconque des revendications 2, 3 et 6, dans lequel la structure de support (11) inclut un moyen (12) qui définit un trajet en S pour le tuyau (T) à travers la structure (11).
  8. Dispositif selon la revendication 1, dans lequel la partie de pression est un piston (50) qui peut être déplacé linéairement dans un siège formé dans une structure de support (4, 46), la commande externe (53) est rotative et des moyens de couplage (49, 51, 52) sont prévus pour convertir le mouvement rotatif de la commande (53) en un mouvement de translation rectiligne du piston (50).
  9. Dispositif selon la revendication 8, dans lequel les moyens de couplage comprennent, reçus dans ledit siège, un cylindre d'actionnement (49) connecté de manière rigide à la commande externe (53) et prévu avec des fentes opposées (51) s'étendant le long d'une partie d'une hélice, dans lequel deux broches radiales opposées correspondantes (52) sur le piston (50) peuvent coulisser.
  10. Dispositif selon la revendication 8, dans lequel la structure de support (41, 46) inclut des ouvertures (45, 48) à travers lesquelles le tuyau (T) entre et sort de la structure avec interférence.
  11. Dispositif selon la revendication 8 ou 10, dans lequel la structure de support (41, 46) inclut des moyens (44) qui définissent un trajet incliné pour le tuyau (T) à l'intérieur de la structure de support (41, 46) par rapport à la direction de déplacement du piston (50).
EP19960830630 1996-12-18 1996-12-18 Dispositif pour contrôler l'écoulement de vapeur dans les appareils domestiques électriques utilisant la vapeur Expired - Lifetime EP0849521B2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES96830630T ES2162649T5 (es) 1996-12-18 1996-12-18 Dispositivo para controlar la circulacion de vapor en aparatos electricos domesticos que utilizan vapor.
DE1996614554 DE69614554T3 (de) 1996-12-18 1996-12-18 Vorrichtung zur Kontrolle der Dampfströmung in dampfgebrauchenden elektrischen Haushaltsgeräten
EP19960830630 EP0849521B2 (fr) 1996-12-18 1996-12-18 Dispositif pour contrôler l'écoulement de vapeur dans les appareils domestiques électriques utilisant la vapeur
GR20010401522T GR3036662T3 (en) 1996-12-18 2001-09-18 Device for controlling the flow of steam in domestic steam using electrical appliances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19960830630 EP0849521B2 (fr) 1996-12-18 1996-12-18 Dispositif pour contrôler l'écoulement de vapeur dans les appareils domestiques électriques utilisant la vapeur

Publications (3)

Publication Number Publication Date
EP0849521A1 EP0849521A1 (fr) 1998-06-24
EP0849521B1 EP0849521B1 (fr) 2001-08-16
EP0849521B2 true EP0849521B2 (fr) 2005-10-26

Family

ID=8226078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960830630 Expired - Lifetime EP0849521B2 (fr) 1996-12-18 1996-12-18 Dispositif pour contrôler l'écoulement de vapeur dans les appareils domestiques électriques utilisant la vapeur

Country Status (4)

Country Link
EP (1) EP0849521B2 (fr)
DE (1) DE69614554T3 (fr)
ES (1) ES2162649T5 (fr)
GR (1) GR3036662T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUD20010159A1 (it) * 2001-10-02 2003-04-02 Simac Vetrella Spa Dispositivo e metodo per determinare la quantita' di liquido contenuto in un contenitore associato ad un elettrodomestico
ITUD20050114A1 (it) * 2005-07-05 2007-01-06 De Longhi Spa Dispositivo per regolare il flusso di vapore in un elettrodomestico
FR2916004B1 (fr) * 2007-05-07 2009-06-12 Rowenta Werke Gmbh Appareil pour le traitement du linge comprenant un dispositif pour controler le debit d'eau envoye vers un generateur de vapeur
DE102019006567B4 (de) * 2019-09-17 2021-07-08 Westinghouse Electric Germany Gmbh Dampferzeugerflüssigkeitsabscheider und Verfahren zu dessen Herstellung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR947662A (fr) * 1947-05-21 1949-07-08 Perfectionnements aux fers à repasser
FR1343057A (fr) * 1962-10-26 1965-11-26 Perfectionnement aux fers à vapeur à réservoir séparé
FR2512473A1 (fr) * 1981-09-09 1983-03-11 Maksa Christian Dispositif de repassage a vapeur sous pression
CH682801A5 (fr) * 1990-11-16 1993-11-30 Radwulf Sa Appareil électro-ménager.
JPH05192498A (ja) * 1992-01-22 1993-08-03 Matsushita Electric Ind Co Ltd アイロン装置

Also Published As

Publication number Publication date
GR3036662T3 (en) 2001-12-31
EP0849521A1 (fr) 1998-06-24
EP0849521B1 (fr) 2001-08-16
ES2162649T5 (es) 2006-06-01
DE69614554T2 (de) 2002-06-06
DE69614554T3 (de) 2006-07-20
ES2162649T3 (es) 2002-01-01
DE69614554D1 (de) 2001-09-20

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