EP3090098B1 - Fer à vapeur - Google Patents

Fer à vapeur Download PDF

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Publication number
EP3090098B1
EP3090098B1 EP14816312.4A EP14816312A EP3090098B1 EP 3090098 B1 EP3090098 B1 EP 3090098B1 EP 14816312 A EP14816312 A EP 14816312A EP 3090098 B1 EP3090098 B1 EP 3090098B1
Authority
EP
European Patent Office
Prior art keywords
inlet conduit
inlet
chamber
collection reservoir
steam iron
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
EP14816312.4A
Other languages
German (de)
English (en)
Other versions
EP3090098A1 (fr
Inventor
Sen Kee Chen
Eng Hoon TAN
Ruixiang DU
Jonathan GOH
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips NV
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Publication date
Application filed by Koninklijke Philips NV filed Critical Koninklijke Philips NV
Priority to EP14816312.4A priority Critical patent/EP3090098B1/fr
Publication of EP3090098A1 publication Critical patent/EP3090098A1/fr
Application granted granted Critical
Publication of EP3090098B1 publication Critical patent/EP3090098B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00Hand irons
    • D06F75/08Hand irons internally heated by electricity
    • D06F75/10Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • D06F75/14Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water in a reservoir carried by the iron
    • D06F75/18Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water in a reservoir carried by the iron the water being fed slowly, e.g. drop by drop, from the reservoir to a steam generator

Definitions

  • the present invention relates to a steam iron having a chamber to receive calcified deposits (see US-A-5 345 704 ).
  • a steam iron has a housing incorporating a handle, a heel on which the iron rests when not in use, and a heated soleplate to remove creases from clothes.
  • a steam iron also has a reservoir to contain water which is supplied to a steam generator to generate steam which is ejected through steam distribution openings in the soleplate onto the clothes as they are ironed to assist with crease removal.
  • Conventional steam irons can be provided with a chamber, within or attached to the soleplate, positioned to receive calcified deposits, commonly called 'scale', which is formed in the steam generator as a result of the steam generation process, especially when the water being used to generate steam is hard.
  • the chamber is positioned towards the rear of the iron so that, whenever the iron is placed on its heel, the calcified deposits fall under gravity from the steam generator and into the chamber where they are retained.
  • the chamber may be periodically opened for emptying after a number of ironing cycles have been performed.
  • a typical steam iron having a calcified deposit collection chamber is known from EP2584089 .
  • a steam iron according to the present invention is characterised in that the chamber is configured so that said residual water collected in the chamber fills the inlet conduit when the iron is returned to its ironing position creating a drop in pressure in the collection chamber which, together with atmospheric pressure acting on the water in the inlet conduit over the inlet, becomes balanced against a gravitational force acting to draw water out of the inlet conduit, thereby holding water in the inlet conduit.
  • a small drop in pressure occurs in the collection reservoir when the iron is returned to its ironing position and the water fills and blocks the inlet conduit. This suction effect serves to hold the water in the collection reservoir. Atmospheric pressure acting over the inlet also adds to the suction force which together overcomes the force of gravity which would otherwise cause the water to drop out of the chamber via the inlet.
  • the collection reservoir extends away from the inlet conduit at an angle relative to a plane in which the soleplate lies.
  • the collection reservoir By arranging the collection reservoir so that it extends away from the inlet conduit, the level of the water in the collection chamber will be above the inlet conduit, thereby reducing the possibility that air will flow through the inlet and via the inlet conduit into the collection reservoir.
  • the collection reservoir may extend from the inlet conduit at an angle in the range of 5 and 60 degrees. Most preferably, the collection reservoir extends from the inlet conduit at an angle of approximately 27 degrees.
  • the inlet conduit defines a first volume and the collection reservoir defines a second volume.
  • the second volume may be larger than the first volume.
  • the inlet conduit has a rectangular cross-section having a height, a width and a length and the height of the inlet conduit is preferably between 3 and 8mm. Most preferably, the height of the inlet conduit is approximately 6mm, the width of the inlet conduit is approximately 24mm and the length of the inlet conduit is approximately 8mm. The length of the collection reservoir may also be approximately 52mm.
  • the collection reservoir may taper outwardly in a direction away from the inlet conduit.
  • the collection reservoir extends laterally from the inlet conduit, the inlet conduit and the collection reservoir being separated by a step.
  • the chamber is integrally formed.
  • a calcified deposit collection accessory removably mountable within a steam iron to collect residual water and calcified deposits that fall under gravity when said steam iron is moved from an ironing position into a non-ironing position
  • the calcified deposit collection accessory comprising a chamber having an inlet, an inlet conduit extending from the inlet and a collection reservoir which is sealed other than by the inlet conduit, wherein said chamber is configured so that said residual water collected in the chamber fills the inlet conduit when the iron is returned to its ironing position creating a drop in pressure in the collection chamber which, together with atmospheric pressure acting on the water in the inlet conduit over the inlet, becomes balanced against a gravitational force acting to draw water out of the inlet conduit, thereby holding water in the inlet conduit.
  • a steam iron 1 according to an embodiment of the present invention is illustrated in Fig. 1 and includes a housing 2 having an integral handle 3.
  • a soleplate 4 is mounted to the housing 2 and is electrically heated to remove creases from clothes when they are laid on a flat surface such as an ironing board 1a and the soleplate 4 is pressed against and moved across them.
  • the steam iron 1 is also provided with a reservoir (not shown) within the housing 2 to contain water for supply to a steam generator 5 located within the soleplate 4 that generates steam for delivery through steam distribution openings 4a in the soleplate 4 to assist in crease removal.
  • the reservoir may be placed external to the housing, for instance in a separate base, and water transferred to the steam generator via a hose.
  • Fig. 1 shows the steam iron in a typical in-use or ironing position, with the soleplate 4 facing downwardly so that the weight of the iron 1 will rest on the clothes being ironed.
  • the housing 2 also has a heel 6. When not in use, the iron may be placed in a stable, non-ironing, upright position resting on its heel 6 so that the soleplate 4 is out of contact with any surfaces.
  • the steam iron 1 includes a calcified deposit collection chamber 7 having an inlet 8, and an inlet conduit 9 that leads into a collection reservoir 10.
  • the collection reservoir 10 is sealed in an air and fluid tight manner by a removable plug or cap 11 that is accessible by the user.
  • a rubber seal o-ring 14 (shown in Fig. 3 ), acting as a sealing element, is disposed between the collection reservoir 10 and the removable plug or cap to form an air and fluid seal.
  • the inlet conduit 9 and the collection reservoir 10 both define a volume.
  • the volume of the collection reservoir 10 is substantially greater than the volume of the inlet conduit 9.
  • the chamber 7 may be integrally formed as a single unit, although it may be formed from multiple parts which are manufactured or molded separately and then joined to each other in a subsequent step. The joining of parts may be necessary if the chamber has a more irregular shape which is difficult to mold as one piece.
  • the inlet 8 is positioned adjacent to a rear face 4b of the soleplate 4 so that calcified deposits that are formed in the steam generator 5 adjacent to the rear face 4b of the soleplate 4 will fall downwardly under their own weight through the inlet 8, along the inlet conduit 9 and into the collection reservoir 10 when the steam iron 1 is placed on its heel 6.
  • a scoop 12 or other element extends from the plug 11 into the collection reservoir that collects or holds the calcified deposits and prevents them from passing back out of the collection reservoir 10 via the inlet conduit 9 and the inlet 8 when the iron is moved back into its ironing position orientation, as shown in Fig. 1 .
  • the inlet conduit 9 is sized and shaped so that when the steam iron 1 is returned from the heel position to its ironing position, water in the collection reservoir 10 flows into, and fills, the inlet conduit 9.
  • the water which fills the volume of the inlet conduit 9 effectively prevents the passage of air through the inlet 8 and along the inlet conduit 9 into the collection reservoir 10.
  • air is unable to pass along the inlet conduit 9 and into the collection reservoir 10, which would be necessary in order to equalise a drop in pressure in the collection reservoir 10 that would occur as a result of water flowing out of the collection reservoir 10 via the inlet conduit 9, water is held in the collection reservoir 10 and in the inlet conduit 9.
  • the collection reservoir 10 extends upwardly away from the inlet conduit 9 with the steam iron 1 in the ironing orientation, as shown in Fig. 1 . This ensures that water in the collection reservoir 10 is above the uppermost point (point 'P' in Figs. 1 , 3 and 5 ) of the inlet conduit 9, so that the entrance to the inlet conduit 9 from the collection reservoir 10 remains fully submerged in order to prevent the passage of air into the collection reservoir 10 which would allow pressures to equalise and water to flow out.
  • the inlet conduit 9 extends parallel to the soleplate 4 and the collection reservoir 10 extends away from the inlet conduit 9 at an angle relative to a plane in which the soleplate 4 lies (' ⁇ ' as shown in Fig. 3 ) of between 5 and 60 degrees.
  • the collection reservoir 10 extends at an upwardly extending angle away from the horizontal soleplate 4.
  • the ability of the chamber 7 to collect calcified deposits may be compromised, as it is harder for the deposits to reach the end of the collection reservoir 10 when the steam iron 1 is placed on its heel 6.
  • the collection reservoir 10 extends upwardly from the inlet conduit 9 at an angle of approximately 27 degrees.
  • the collection reservoir 10 may also taper outwardly away from the inlet conduit 9 towards the plug 11 at the opposite end of the collection reservoir 10, so the walls of the collection reservoir 10 need not be parallel to each other.
  • the inventors have determined that the height ('a' in Fig. 2 ) of the inlet 8 should be in the order of 3mm to 8mm. If the height is less than 3mm, then the inlet conduit 9 may become choked with calcified deposits relatively quickly.
  • the height of the inlet 8 is approximately 6mm
  • the width ('b' in Fig. 2 ) of the inlet conduit 9 is approximately 24mm
  • the length ('c' in Fig. 2 ) of the inlet conduit 9 is approximately 8mm.
  • the length ('d' in Fig. 2 ) of the collection reservoir 10 may also be in the order of 52mm.
  • FIG. 4 A second embodiment is shown in Figs 4 and 5 .
  • This embodiment is identical to the embodiment described with reference to Figs. 2 and 3 , except that the collection reservoir 10 does not extend upwardly away from the inlet conduit 9.
  • the collection reservoir 10 is simply a lateral extension of the inlet conduit 9 and so angle ⁇ , as shown in Fig. 3 , can be assumed to be zero in the embodiment of Fig. 5 )), although the collection reservoir 10 has a larger volume than the inlet conduit 9.
  • a step 13 is formed between the inlet conduit 9 and the collection reservoir 10, separating the smaller volume inlet conduit 9 from the larger volume collection reservoir 10.
  • the calcified deposit collection chamber 7 could be provided as a replacement part or accessory for existing steam irons.
  • Such an embodiment is generally the same as the embodiments described above and so a detailed description will be omitted herein.
  • each of the inlet 8 and inlet conduit 9 are each shown to have a rectangular profile, it will be understood that in alternative embodiments each of the inlet 8 and inlet conduit 9 may be formed to define a different shape, for example an oval profile.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)

Claims (13)

  1. Fer à vapeur comprenant un générateur de vapeur (5) et une chambre (7) présentant une entrée (8) positionnée de sorte que l'eau résiduelle et des dépôts calcifiés formés dans le générateur de vapeur (5) tombent sous l'influence de la gravité par ladite entrée (8) et dans la chambre (7) lorsque le fer est déplacé depuis une position de repassage à une position de non repassage, dans lequel la chambre (7) inclut un conduit d'entrée (9) et un réservoir de collecte (10), le conduit d'entrée (9) s'étendant depuis ladite entrée (8) dans le réservoir de collecte (10) qui est scellé autrement, caractérisé en ce que la chambre (7) est configurée de sorte que ladite eau résiduelle collectée dans la chambre (7) remplisse le conduit d'entrée (9) lorsque le fer est ramené à sa position de repassage créant une chute de pression dans la chambre de collecte (7) qui, conjointement avec la pression atmosphérique agissant sur l'eau dans le conduit d'entrée (9) par dessus l'entrée (8), s'équilibre contre une force de gravité agissant pour évacuer l'eau du conduit d'entrée (9), contenant par là même l'eau dans le conduit d'entrée (9).
  2. Fer à vapeur selon la revendication 1, dans lequel le réservoir de collecte (10) s'étend loin du conduit d'entrée (9) selon un angle par rapport à un plan, dans lequel la semelle (4) se trouve.
  3. Fer à vapeur selon la revendication 2, dans lequel le réservoir de collecte (10) s'étend du conduit d'entrée (9) selon un angle dans la plage de 5 à 60 degrés.
  4. Fer à vapeur selon la revendication 3, dans lequel le réservoir de collecte (10) s'étend vers le haut depuis le conduit d'entrée (9) selon un angle d'approximativement 27 degrés.
  5. Fer à vapeur selon une quelconque revendication précédente, dans lequel le conduit d'entrée (9) définit un premier volume et le réservoir de collecte (10) définit un second volume, le second volume étant supérieur au premier volume.
  6. Fer à vapeur selon une quelconque revendication précédente, dans lequel le conduit d'entrée (9) a une section transversale rectangulaire présentant une hauteur (a), une largeur (b) et une longueur (c).
  7. Fer à vapeur selon la revendication 6, dans lequel la hauteur (a) du conduit d'entrée (9) est entre 3 et 8 mm.
  8. Fer à vapeur selon la revendication 7, dans lequel la hauteur du conduit d'entrée (9) est approximativement de 6 mm, la largeur du conduit d'entrée (b) est approximativement de 24 mm et la longueur (c) du conduit d'entrée (9) est approximativement de 8 mm.
  9. Fer à vapeur selon la revendication 8, dans lequel une longueur (c) du réservoir de collecte (10) est approximativement de 52 mm.
  10. Fer à vapeur selon l'une quelconque des revendications 5 à 9, dans lequel le réservoir de collecte (10) se rétrécit vers l'extérieur dans une direction loin du conduit d'entrée (9).
  11. Fer à vapeur selon la revendication 1 ou 2, dans lequel le réservoir de collecte (10) s'étend latéralement du conduit d'entrée (9), le conduit d'entrée (9) et le réservoir de collecte (10) étant séparés par un étage (13).
  12. Fer à vapeur selon une quelconque revendication précédente, dans lequel la chambre (7) est intégralement formée.
  13. Accessoire de collecte de dépôt calcifié pouvant être monté de manière détachable dans un fer à vapeur pour collecter l'eau résiduelle et des dépôts calcifiés qui tombent sous la gravité lorsque ledit fer à vapeur est déplacé depuis une position de repassage à une position de non repassage, l'accessoire de collecte de dépôt calcifié comprenant une chambre (7) présentant une entrée (8), un conduit d'entrée (9) s'étendant depuis l'entrée (8) et un réservoir de collecte (10) qui est scellé autrement que par le conduit d'entrée (9), caractérisé en ce que ladite chambre (7) est configurée de sorte que ladite eau résiduelle collectée dans la chambre (7) remplisse le conduit d'entrée (9) lorsque le fer est ramené à sa position de repassage créant une chute de pression dans la chambre de collecte (7) qui, conjointement avec la pression atmosphérique agissant sur l'eau dans le conduit d'entrée (9) par dessus de l'entrée (8), s'équilibre contre une force de gravité agissant pour évacuer l'eau du conduit d'entrée (9), contenant par là même l'eau dans le conduit d'entrée (9).
EP14816312.4A 2013-12-31 2014-12-23 Fer à vapeur Active EP3090098B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14816312.4A EP3090098B1 (fr) 2013-12-31 2014-12-23 Fer à vapeur

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13199890 2013-12-31
PCT/EP2014/079104 WO2015101548A1 (fr) 2013-12-31 2014-12-23 Fer à repasser à la vapeur
EP14816312.4A EP3090098B1 (fr) 2013-12-31 2014-12-23 Fer à vapeur

Publications (2)

Publication Number Publication Date
EP3090098A1 EP3090098A1 (fr) 2016-11-09
EP3090098B1 true EP3090098B1 (fr) 2017-11-15

Family

ID=49885094

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14816312.4A Active EP3090098B1 (fr) 2013-12-31 2014-12-23 Fer à vapeur

Country Status (6)

Country Link
EP (1) EP3090098B1 (fr)
CN (1) CN105874117B (fr)
BR (1) BR112016015081B1 (fr)
ES (1) ES2657995T3 (fr)
RU (1) RU2667134C2 (fr)
WO (1) WO2015101548A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3259394B1 (fr) * 2015-12-24 2018-10-03 Koninklijke Philips N.V. Défroisseur à vapeur portatif
RU2731862C2 (ru) * 2016-04-26 2020-09-08 Конинклейке Филипс Н.В. Паровой утюг с отделением для сбора известковых отложений

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1047638C (zh) * 1992-05-15 1999-12-22 莫利奈克斯公司 蒸气电熨斗
FR2691176B1 (fr) * 1992-05-15 1995-09-08 Moulinex Sa Fer a repasser electrique a vapeur.
DE4440244A1 (de) * 1994-11-11 1996-05-15 Braun Ag Dampfbügeleisen
JP5053272B2 (ja) * 2005-07-11 2012-10-17 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 蒸気装置との使用のためのボイラシステムを洗浄するための方法
EP2418317A1 (fr) * 2010-08-12 2012-02-15 Koninklijke Philips Electronics N.V. Hydratation de vêtement à phase liquide comportant du fer via une plaque
FR2981372B1 (fr) * 2011-10-18 2013-11-01 Seb Sa Fer a repasser comportant une chambre de vaporisation reliee a une cavite de recuperation du tartre comprenant un orifice de detartrage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN105874117B (zh) 2019-01-25
CN105874117A (zh) 2016-08-17
WO2015101548A1 (fr) 2015-07-09
RU2667134C2 (ru) 2018-09-14
ES2657995T3 (es) 2018-03-07
EP3090098A1 (fr) 2016-11-09
RU2016130974A3 (fr) 2018-07-19
RU2016130974A (ru) 2018-02-05
BR112016015081B1 (pt) 2021-12-28
BR112016015081A2 (pt) 2017-08-08

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