EP0454048A2 - Fer à repasser à vapeur - Google Patents

Fer à repasser à vapeur Download PDF

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Publication number
EP0454048A2
EP0454048A2 EP91106505A EP91106505A EP0454048A2 EP 0454048 A2 EP0454048 A2 EP 0454048A2 EP 91106505 A EP91106505 A EP 91106505A EP 91106505 A EP91106505 A EP 91106505A EP 0454048 A2 EP0454048 A2 EP 0454048A2
Authority
EP
European Patent Office
Prior art keywords
evaporator chamber
valve
steam iron
sealing body
water tank
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.)
Granted
Application number
EP91106505A
Other languages
German (de)
English (en)
Other versions
EP0454048A3 (en
EP0454048B1 (fr
Inventor
Udo Halbach
Heinz Ohlsen
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.)
Robert Krups GmbH and Co KG
Original Assignee
Robert Krups GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Krups GmbH and Co KG filed Critical Robert Krups GmbH and Co KG
Publication of EP0454048A2 publication Critical patent/EP0454048A2/fr
Publication of EP0454048A3 publication Critical patent/EP0454048A3/de
Application granted granted Critical
Publication of EP0454048B1 publication Critical patent/EP0454048B1/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
    • D06F75/14—Hand 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
    • D06F75/18—Hand 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 invention relates to a steam iron with an electrically heatable sole plate having an evaporator chamber, a handle arranged at a distance above it and integrated in a housing and with a water tank arranged above the sole plate, from which water can be supplied to the evaporator chamber via an adjustable drip valve at the bottom of the water tank.
  • the drip valve comprises a spring-loaded valve needle which, in the closed position, engages in a valve seat projecting into the evaporator chamber.
  • the object of the present invention is to improve a steam iron of the type mentioned in such a way that irrespective of the setting of the drip valve, the supply of water to the steam chamber is automatically prevented if the temperature of the soleplate in the region of the evaporator chamber for a complete evaporation of the amount of water supplied is no longer sufficient.
  • valve seat can be shut off independently of the valve needle by a sealing body held on the soleplate and supported by a temperature-controlled memory adjusting element in the closing direction.
  • the memory adjusting element used to actuate the sealing body is distinguished by its shape memory alloy, which undergoes a temperature-dependent, reversible change in shape due to a thermoelastic martensitic conversion.
  • the property inherent in the memory control element can be used to transfer the sealing body into a closed position if the temperature of the soleplate in the area of the steam chamber drops to such an extent that evaporation of the amount of water introduced is no longer entirely possible.
  • the valve seat advantageously projects into an opening with a radial outer spacing in the cover part of the evaporator chamber, this opening also being closable by the sealing body if the sole temperature is too low.
  • a manually operable metering pump is used to supply an additional amount of water to the evaporator chamber via a pressure line.
  • a return line with a self-closing pressure relief valve is switched between the pressure line and the evaporator chamber, so that when the dosing pump is closed Sealing body the amount of water expelled from the metering pump can be returned to the water tank.
  • This return line is advantageously formed by a circulation insert arranged above the evaporator chamber, which connects the pressure line to an opening in the bottom of the water tank, this opening being covered by an elastic bell which forms the pressure relief valve and is held on the bottom of the water tank.
  • valve seat enclosed by the cover part of the evaporator chamber advantageously protrudes with an annular lip into the evaporator chamber, the sealing body advantageously engaging in the shut-off position with a pin in the annular lip for sealing the evaporator chamber.
  • the memory actuating element as a memory compression spring.
  • the sole plate preferably for guiding and better transfer of the heat from the sole plate to the memory spring, likes a pin which projects into the evaporator chamber and is arranged centrally to the valve seat have, which is encompassed by the memory compression spring.
  • the memory compression spring may be encompassed by an annular collar protruding from the soleplate, on which the sealing body is in turn fixed. The sealing body may have a stop bead corresponding to the pin of the soleplate.
  • the steam iron has an electrically heatable sole plate 10, above which a cover part 12 is arranged, which together with the sole plate 10 forms an evaporator chamber 11, from which known, not shown steam guide channels branch, through which the steam formed in the evaporator chamber known outlet openings in the Sole plate 10 is supplied.
  • a cover 14 fastened to the sole plate via intermediate pieces 13, which carries a water tank 15 which is traversed by a manually controllable drip valve 16, which in turn engages in a water collecting bowl 17 connected to the water tank 15.
  • This water collecting bowl 17 has an outlet opening 18 on the underside, in which a valve seat 19 designed as a funnel-shaped sleeve is arranged, in which the adjustable valve needle 20 of the drip valve 16 can engage on the one hand to form a more or less large opening or on the other hand to close it.
  • the valve needle 20 itself can be operated in various ways in a known manner.
  • a control cam 22 at the front end of the handle part 21, which can act by means of a transmission lever 23 on the actuating end of the valve needle 20 which is loaded by a return spring 24 in the opening direction.
  • a push lever 26 acts on the end 25 loaded by a return spring 24 in the opening direction of the valve needle 20, the actuating arm 27 of which is guided on the one hand in the grip part 21 and projects out of the latter for adjustment.
  • the steam iron shown in FIG. 1 has, in addition to a pump 28 for a spray nozzle 29 which can be actuated manually in a known manner by means of a push button 30, a further one arranged next to the pump 28 with the latter Pump 28 with another metering pump that is approximately identical in structure and is connected to the evaporator chamber 11 via a pressure line 31.
  • This pressure line 31 is on the one hand through the water tank 15 itself and also out of the water tank 17 forming an underbody of the water tank and connected to a return line 32 which on the one hand leaves a path to the evaporator chamber 11 and on the other hand flows back into the water tank via a pressure relief valve 33.
  • This return line is - as can best be seen from FIG.
  • this pressure relief valve 33 is formed from a self-sealing, elastic bell 39 held at the bottom of the water collecting tray 17.
  • the valve seat 19 can be closed by a sealing body 41 arranged in the evaporator chamber 11 and acted upon by a memory adjusting element 40.
  • the memory actuator is a memory compression spring formed on the one hand on the sole plate 10 and on the other hand on the sealing body 41. At a temperature of more than about 100 ° C, the memory compression spring deforms such that the sealing body 41 is held in the open position shown in FIG. 2. When the soleplate in the area of the memory spring cools below 100 ° C., this memory spring 40 deforms in such a way that the sealing body 41 closes the valve seat 19, as shown in FIGS. 1 and 5. In the steam iron shown in FIGS.
  • the sealing body 41 is designed such that, in addition to the valve seat 19, the opening 36 in the cover part 12 of the evaporator chamber 11, which surrounds this at a radial distance, is closed if the temperature of the soleplate drops below a value , which no longer permits perfect evaporation of the water entering the evaporator chamber.
  • the sealing body 41 As a function of the temperature-dependent opening path of the memory compression spring 40, there is a temperature-dependent control of the amount of water that can be supplied to the evaporator chamber 11.
  • the valve seat 19 protrudes into the evaporator chamber 11 with an annular lip 42.
  • the sealing body 41 of the embodiment according to FIG. 5 has on its outer side a centrally arranged pin 43 which engages in a sealing manner in the ring lip 42 in the closed position.
  • the memory compression spring 40 can be fixed to the sole plate 10 in another way, in both embodiments the sole plate 10 is provided with a pin 44 projecting therefrom and arranged centrally to the valve seat 19, which is encompassed by the memory spring 40. Concentric to this pin 44, an annular collar 45 protrudes from the sole plate 10 at a distance from the pin 44, which on the one hand encompasses the memory compression spring 40 and on the other hand the fastening of the sealing body 41 serves.
  • the sealing body 41 has an inside abutment bead 46 which can be supported on the end face of the pin 44 in the open position of the sealing body 41.
  • the pin 43 can be designed, for example, as a truncated cone to optimize the temperature-dependent regulation of the amount of water directed to the evaporator chamber 11 and can be brought into engagement with a correspondingly tapered bore in the annular lip 42 of the valve seat 19, as can be seen from FIG. 5.
  • other designs of the annular lip 42 and sealing body 41 are also conceivable.
EP91106505A 1990-04-24 1991-04-23 Fer à repasser à vapeur Expired - Lifetime EP0454048B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4012951 1990-04-24
DE4012951A DE4012951C2 (de) 1990-04-24 1990-04-24 Dampfbügeleisen

Publications (3)

Publication Number Publication Date
EP0454048A2 true EP0454048A2 (fr) 1991-10-30
EP0454048A3 EP0454048A3 (en) 1991-12-04
EP0454048B1 EP0454048B1 (fr) 1996-06-12

Family

ID=6404930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91106505A Expired - Lifetime EP0454048B1 (fr) 1990-04-24 1991-04-23 Fer à repasser à vapeur

Country Status (4)

Country Link
EP (1) EP0454048B1 (fr)
AT (1) ATE139275T1 (fr)
DE (1) DE4012951C2 (fr)
ES (1) ES2087927T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2704246A1 (fr) * 1993-04-23 1994-10-28 Moulinex Sa Chambre de distribution d'un fer à repasser électrique à vapeur.
EP0866162A2 (fr) * 1997-03-20 1998-09-23 ROWENTA-WERKE GmbH Fer à repasser à vapeur
CN101858030A (zh) * 2009-04-08 2010-10-13 蔡龙威 带有低温蒸汽控制系统的蒸汽电熨斗

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4133254A1 (de) * 1991-10-08 1993-04-15 Braun Ag Tropfventil
DE19731014C2 (de) * 1997-07-21 2000-10-12 Rowenta Werke Gmbh Elektrisches Dampfbügeleisen
DE102013103794A1 (de) * 2013-04-16 2014-10-16 Miele & Cie. Kg Bügelgerät

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2317706A (en) * 1941-04-11 1943-04-27 Westinghouse Electric & Mfg Co Steam iron
GB951532A (en) * 1960-10-31 1964-03-04 Licentia Gmbh Improvements in electrically heated steam irons

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3424743A1 (de) * 1984-07-05 1986-01-16 Robert Krups Stiftung & Co KG, 5650 Solingen Dampfbuegeleisen
ES289976Y (es) * 1985-10-30 1988-07-01 Oficina De Investigacion Agrupada,S.A. Valvula perfeccionada de paso de agua para planchas de vapor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2317706A (en) * 1941-04-11 1943-04-27 Westinghouse Electric & Mfg Co Steam iron
GB951532A (en) * 1960-10-31 1964-03-04 Licentia Gmbh Improvements in electrically heated steam irons

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2704246A1 (fr) * 1993-04-23 1994-10-28 Moulinex Sa Chambre de distribution d'un fer à repasser électrique à vapeur.
EP0625608A1 (fr) * 1993-04-23 1994-11-23 Moulinex S.A. Chambre de distribution d'un fer à repasser électrique à vapeur
US5444216A (en) * 1993-04-23 1995-08-22 Moulinex (Societe Anonyme) Distribution chamber for an electric steam iron with two compartments separated by a partition
EP0866162A2 (fr) * 1997-03-20 1998-09-23 ROWENTA-WERKE GmbH Fer à repasser à vapeur
EP0866162A3 (fr) * 1997-03-20 1999-02-17 ROWENTA-WERKE GmbH Fer à repasser à vapeur
CN101858030A (zh) * 2009-04-08 2010-10-13 蔡龙威 带有低温蒸汽控制系统的蒸汽电熨斗
EP2239366A1 (fr) * 2009-04-08 2010-10-13 Lung Wai Choi Fer à vapeur électrique avec système de contrôle de vapeur à basse température

Also Published As

Publication number Publication date
ATE139275T1 (de) 1996-06-15
DE4012951C2 (de) 2000-08-31
DE4012951A1 (de) 1991-10-31
EP0454048A3 (en) 1991-12-04
ES2087927T3 (es) 1996-08-01
EP0454048B1 (fr) 1996-06-12

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