EP1402809B1 - Vorrichtung zum Gewichtsausgleich der Tür einer Haushaltsgeschirrspülmaschine - Google Patents

Vorrichtung zum Gewichtsausgleich der Tür einer Haushaltsgeschirrspülmaschine Download PDF

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Publication number
EP1402809B1
EP1402809B1 EP20030380209 EP03380209A EP1402809B1 EP 1402809 B1 EP1402809 B1 EP 1402809B1 EP 20030380209 EP20030380209 EP 20030380209 EP 03380209 A EP03380209 A EP 03380209A EP 1402809 B1 EP1402809 B1 EP 1402809B1
Authority
EP
European Patent Office
Prior art keywords
door
cord
spring
balancing
tensioning
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
EP20030380209
Other languages
English (en)
French (fr)
Other versions
EP1402809A3 (de
EP1402809A2 (de
Inventor
Inaki Bilbao Olea
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.)
Fagor Electrodomesticos SCL
Original Assignee
Fagor Electrodomesticos SCL
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 Fagor Electrodomesticos SCL filed Critical Fagor Electrodomesticos SCL
Publication of EP1402809A2 publication Critical patent/EP1402809A2/de
Publication of EP1402809A3 publication Critical patent/EP1402809A3/de
Application granted granted Critical
Publication of EP1402809B1 publication Critical patent/EP1402809B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1041—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis
    • E05F1/1066—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a traction spring
    • E05F1/1075—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a traction spring for counterbalancing
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4251—Details of the casing
    • A47L15/4257—Details of the loading door
    • A47L15/4261—Connections of the door to the casing, e.g. door hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/304—Application of doors, windows, wings or fittings thereof for domestic appliances for dishwashers

Definitions

  • the present invention is related to a spring device connected to the hinge of a fold-down door on a household dishwasher appliance, for balancing the opening of the door.
  • the door hinge On a dishwasher appliance with a front fold-down door, the door hinge has a horizontal swivel pin at the bottom of the door and its opening is balanced by means of a device provided with a mechanism of two coil springs anchored to the casing walls.
  • the weight of the door varies from one appliance to another depending on whether it has a cover panel or not and the device for balancing the opening of the door is the same on all appliances of all types, a compensation spring being connected at each of the two side walls from the casing of the appliance to the door hinge, each by means of a respective transmission cord, with the assistance of a means for the initial adjustment of each of the two springs, or prior spring tensioning.
  • the balancing device has to compensate the moment of the weight of the door and of its cover panel in order to keep the door open at any angular opening position.
  • the dishwasher appliance described in US-A-5980006 contains the combination of the components described in the preamble of claim 1.
  • the balancing device belonging to the prior art comprises various parts that are complicated to mount for the transmission and adjustment of the pre-tension of the springs mechanism, which is fitted occupying a space on the both side walls of the appliance.
  • the installation of the prior art balancing device including two compensation springs supported by the casing requires the prior fitting of the door and subsequently the fitting of a spring on either opposite side of the casing.
  • This succession of fitting operations is a drawback for manufacture and generates an additional economic cost, since for the installation of both springs, the appliance casing has to be turned over and re-oriented in relation to the position of the working person. Further, for the replacement of the spring when it breaks due to continual use it is necessary to remove the side wall panel from the appliance in order to gain access to the spring housing.
  • the invention is a device for balancing the opening of a fold-down door of a household dishwasher appliance, attenuating the door opening movement by means of a single door weight compensating spring, an horizontal swivel pin, and a hinge, as defined in claim 1.
  • the balancing device uses flat-shaped moulded parts, thereby facilitating the assembling of the device and its fitting on the casing of the appliance, and it uses a single compensation spring, which extends inside the casing parallel to the door swivel pin.
  • the single spring installed in this way is held without support, by being pulled from either end in opposite directions by two transmission cords.
  • the balancing device offers an advantage for the assembly of the dishwasher appliance, since, as it consists of a single spring in an internal front location, its installation is done entirely in the same stage as the rest of the internal components from the upper opening in the casing, without movable or turning the appliance over, while the door is fitted at the final stage of assembly. For the subsequent replacement of the spring access is gained easily to the spring housing from the front of the appliance.
  • a balancing device 1 is connected to a door 2 of a dishwasher appliance provided with a dishwasher casing 3, the door being fold-down at the front by means of a door hinge 4 fitted with a swivel pin 5.
  • the balancing device 1 comprises a single compensation spring 5 for attenuating the door opening movement "A", the moment Mg of the door 2 being compensated by means of the moment Ms of the force Fs of spring 5, in respect of pin 5 too.
  • the balancing device 1 comprises a single helical compensation spring 6 and two identical tensioning assemblages 7-11 made of moulded plastic, secured respectively in a symmetrical manner on two opposite side walls of the casing 3.
  • Each of these symmetrical tensioning assemblages 7-11 comprises a cord 7 with an end 7a connected to one of the two side hinges 4 for transmitting a force Fs of spring 6 to door 2 in a given direction 14 (FIG.
  • the tensioning assemblage 7-11 comprises said tensioning plate 8, which is formed by a part piece 8a secured to the casing 3 and a movable part piece 8b provided with said tensioning surface 9 on which it is guided and kept within a plane according to a direction 13 (FIG. 1) transverse to the swivel pin 5 and to the spring 6.
  • the plate's movable piece 8b is guided between two outer walls of the plate's fixed piece 8a.
  • the guiding surface 11 is formed on the fixed piece 8a, and it has a round edge 11a surrounded by the cord 7 to direct the cord end 7b towards the corresponding end of the spring 6 coaxially.
  • the tensioning plate's movable piece 8b on which cord 7 slides is guided within the fixed piece 8a and pushed in a direction 13 transverse to the swivel pin 5 by the adjusting screw threaded into a casing wall.
  • the spring 6 is set with a pre-tension for each appliance in accordance with weight "G" of the door 2 plus its cover panel, by means of the forward movement of the adjusting screw 10 which displaces the movable part 8b a separation distance "d" in said direction 13.
  • This movement “d” of the tensioning surface 9 is done with the door 2 closed and provides the spring 6 with a pre-tension, which modifies the characteristic curve during travel "A” of the resultant moment Ms of spring 6, between two curves of values Ms (max) and Ms (min), as is shown in FIG.3.
  • spring 6 is 180 mm long and the displacement "d" of the tensioning surface 9 in relation to the fixed part 8a for the pre-adjustment is 10 mm.

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Washing And Drying Of Tableware (AREA)

Claims (3)

  1. Eine Vorrichtung (1) zum Gewichtsausgleich der Öffnung (A) der Klapptür (2) einer Haushaltsgeschirrspülmaschine mit Hilfe einer am Sockel (3) des Geräts angebrachten Federmechanismus (6) zur Kompensierung des Gewichts (G) der Tür innerhalb des Sockels (3), wobei diese Ausgleichsvorrichtung (1) zwei symmetrisch befestigte Spannvorrichtungen (7-11), jeweils eine an jeder Seitenwand des Sockels (3), umfasst, die über ein entsprechendes Seil (7) für die Übertragung des Kraftmoments (Ms) der Kraft der Rückstellfeder (2) auf die beiden Scharniere (4) mit je einem seitlichen Scharnier (4) der mit einer horizontalen Drehachse (5) ausgestatteten Tür verbunden sind, um die Öffnungsbewegung der Tür (2) abzuschwächen, und Mittel (8-10) für die Einstellung der Vorspannung der Federmechanismus (6), einschliesslich eine gewölbte Gleitfläche (9) zum Spannen jedes Seils (7) sowie Mittel (8, 9, 11) für die Führung des Seils (7) an seinen Enden (7a, 7b) für die jeweilige Verbindung mit dem Scharnier (4) und der Rückstellfeder (6) besitzt, dadurch gekennzeichnet, dass die Ausgleichsvorrichtung (1) mit der Rückstellfeder (6) für den Ausgleich aus einer einzigen Federmechanismus (6) besteht, die sich in einem innenliegenden Bereich zwischen den beiden Seitenwänden des Sockels (3) befindet und horizontal ausgestreckt in einer Richtung parallel zur Drehachse gehalten sowie zwischen den beiden Enden (7b) der beiden Übertragungsseile (7) gespannt wird, und dass jedes einzelne dieser Führungsmittel (8,9,11) eine Platte (8) zum Spannen des Seils (7) umfasst, welche eine Fläche (11) zum Führen des Seils (7) aufweist und dem Ende (7b) des Seils eine zur Rückstellfeder (6) koaxiale Ausrichtung verleiht, um es mit dieser Feder (6) zu verbinden.
  2. Die Vorrichtung (1) zum Gewichtsausgleich der Öffnung (A) der Klapptür (2) nach Anspruch 1, dadurch gekennzeichnet, dass die Mittel (8 - 10) zur Einstellung der Vorspannung der Feder (6) diese Spannplatte (8) umfassen und ein bewegliches Teil (8b) der mit dieser Fläche (9) zum Spannen des Seils (7) ausgestatteten Platte führen, das in einem Abstand (d) von einem festliegenden Teil (8a) der Spannplatte in einer Richtung quer zur Drehachse (5) verschoben werden kann.
  3. Die Vorrichtung (1) zum Gewichtsausgleich der Öffnung (A) der Klapptür (2) nach Anspruch 1, dadurch gekennzeichnet, dass die Platte (8) zum Spannen des Seils über eine Führungsfläche (11b) verfügt, die dem Ende (7b) des Seils (7) eine entsprechende Ausrichtung zur Feder (6) verleiht, um eine Bremsreibung des Seils hervorzurufen und der Öffnung (A) der Tür (2) entgegenzuwirken.
EP20030380209 2002-09-26 2003-09-23 Vorrichtung zum Gewichtsausgleich der Tür einer Haushaltsgeschirrspülmaschine Expired - Lifetime EP1402809B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200202294U ES1052969Y (es) 2002-09-26 2002-09-26 Dispositivo para el equilibrado de la puerta de un lavavajillas.
ES200202294 2002-09-26

Publications (3)

Publication Number Publication Date
EP1402809A2 EP1402809A2 (de) 2004-03-31
EP1402809A3 EP1402809A3 (de) 2004-09-29
EP1402809B1 true EP1402809B1 (de) 2006-05-03

Family

ID=8502140

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030380209 Expired - Lifetime EP1402809B1 (de) 2002-09-26 2003-09-23 Vorrichtung zum Gewichtsausgleich der Tür einer Haushaltsgeschirrspülmaschine

Country Status (3)

Country Link
EP (1) EP1402809B1 (de)
DE (1) DE60304959T2 (de)
ES (2) ES1052969Y (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009146874A1 (de) * 2008-06-02 2009-12-10 Miele & Cie. Kg Geschirrspülmaschine mit einer vorrichtung zum spaltweisen öffnen der tür

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110187246A1 (en) * 2006-02-22 2011-08-04 Shin Gap Su Dish Washer
KR20070084898A (ko) * 2006-02-22 2007-08-27 엘지전자 주식회사 식기세척기의 도어힌지어셈블리
TR200905850A1 (tr) 2009-07-28 2011-02-21 Vestel Beyaz Eşya Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇@ Bulaşık makinaları için denge ağırlığı montaj mekanizması.
CN105877672B (zh) * 2016-05-09 2019-08-30 佛山市顺德区美的洗涤电器制造有限公司 洗碗机的密封件及洗碗机
WO2021067131A1 (en) * 2019-10-01 2021-04-08 Middleby Marshall Inc. Tensioning system for appliance door
CN111248832A (zh) * 2020-02-11 2020-06-09 佛山市顺德区美的洗涤电器制造有限公司 洗碗机

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT987899B (it) * 1973-05-25 1975-03-20 Iret Spa Dispositivo di bilanciamento per porte di apparecchi elettrodome stici cucine forni e simili
DE3911555C2 (de) * 1989-04-08 1995-03-16 Bauknecht Hausgeraete Vorrichtung zum Gewichtsausgleich einer Klapptüre
DE19611050B4 (de) * 1996-03-20 2008-09-18 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung zum Gewichtsausgleich einer frontseitigen, um eine horizontale Achse schwenkbaren, an einem Gehäuse gelagerten Tür eines Haushaltgerätes, insbesondere einer Haushalt-Geschirrspülmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009146874A1 (de) * 2008-06-02 2009-12-10 Miele & Cie. Kg Geschirrspülmaschine mit einer vorrichtung zum spaltweisen öffnen der tür
US8882933B2 (en) 2008-06-02 2014-11-11 Miele & Cie. Kg Dishwasher having a device for opening the door in gaps

Also Published As

Publication number Publication date
ES1052969Y (es) 2003-06-16
DE60304959T2 (de) 2006-12-21
EP1402809A3 (de) 2004-09-29
DE60304959D1 (de) 2006-06-08
ES2260593T3 (es) 2006-11-01
ES1052969U (es) 2003-03-01
EP1402809A2 (de) 2004-03-31

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