EP0812947B1 - Dispositif pour soulever les roues d'appareils domestiques - Google Patents

Dispositif pour soulever les roues d'appareils domestiques Download PDF

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Publication number
EP0812947B1
EP0812947B1 EP96109378A EP96109378A EP0812947B1 EP 0812947 B1 EP0812947 B1 EP 0812947B1 EP 96109378 A EP96109378 A EP 96109378A EP 96109378 A EP96109378 A EP 96109378A EP 0812947 B1 EP0812947 B1 EP 0812947B1
Authority
EP
European Patent Office
Prior art keywords
appliance
cam
frame
appliance according
wheels
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
EP96109378A
Other languages
German (de)
English (en)
Other versions
EP0812947A1 (fr
Inventor
Pierre Hoguet
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.)
Whirlpool Europe BV
Original Assignee
Whirlpool Europe BV
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 Whirlpool Europe BV filed Critical Whirlpool Europe BV
Priority to ES96109378T priority Critical patent/ES2165941T3/es
Priority to EP96109378A priority patent/EP0812947B1/fr
Priority to DE69616038T priority patent/DE69616038T2/de
Publication of EP0812947A1 publication Critical patent/EP0812947A1/fr
Application granted granted Critical
Publication of EP0812947B1 publication Critical patent/EP0812947B1/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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • D06F39/125—Supporting arrangements for the casing, e.g. rollers or legs

Definitions

  • the present invention relates to a domestic appliance provided with a trolley device of the kind designed for fitting in to the lower part of the chassis of the appliance to facilitate the moving of such an appliance when this is required, by rolling.
  • Trolley devices for domestic appliances are known from DE-A-1585963 and DE-A-2127105, in which a movable auxiliary frame carrying the wheels or rollers is linked to the appliance.
  • Such technical solutions are quite complicated and expensive.
  • GB-A-2082450 discloses a base for a domestic appliance comprising a rectangular-section bar having at its ends two retractable rollers.
  • DE-A-2245967 discloses an appliance having a movable roller acted, through a cable, on closure of the lid of the appliance.
  • the present invention has the object to provide a trolley device for domestic appliances having low cost, high reliability and a very low handling force.
  • reference numeral 10 designates the chassis of a top-loading washing machine made of metal sheets bent and/or welded together.
  • the chassis 10 is provided in its base front portion with two feet 12 and in its base rear portion with a roller 14 which is rotatably mounted in a seat 14a of the chassis 10.
  • a trolley device 18 is fixed by welding or by other well known techniques to an inside face (not shown) of the lower portion of the front panel of the chassis, designated with reference numeral 16.
  • the trolley device 18 (figures 2 and 3) comprises a metal frame 20 with an horizontal plate 20a, a vertical front edge 20b for connecting the frame 20 to the chassis 10 of the washing machine and a rear raised portion 20c for stiffening purposes.
  • the metal frame 20 comprises also two vertical fins 25 for the suspension of the washing machine (not shown).
  • the horizontal plate 20a is provided on its upper face with two pivot pins 22 having parallel horizontal rotation axis X-X which are substantially perpendicular to the front panel of the chassis 10.
  • Each pivot pin 22 is supporting and is integral with a Z-shaped shaft 24 having a first free end 24a on which a wheel 26 is rotatably mounted, and a second free end 24b which has a triangular cross section.
  • Each wheel 26 is positioned in an aperture 27 of the horizontal plate 20a.
  • Each free end 24b of the shaft 24 is adapted to cooperate (like a feeler pin) with a crown-shaped cam 28 rotatably mounted in a central seat 30 of the horizontal plate 20a of the frame 20.
  • the cam 28 has a vertical rotation axis Y-Y and is provided with an operating lever 32 having its free end 32a which, in a idle configuration of the device 18 (figures 1, 2 and 5), rests on the lower portion of the front panel of the washing machine.
  • the profile of the cam 28 comprises two down areas 28a diametrically opposite and two up areas 28b, which are radiused by two ramp up areas 28c.
  • a tension spring (not shown) is preferably interposed between such ends 24b.
  • the idle or retracted configuration of the device is shown in figures 1, 2 and 5.
  • the chassis 10 rests on its front feet 12 and on its rear roller 14a, the wheels 26 being kept in a "up" position by the weight of the longer portions of shafts 34 adjacent the ends 24b, or preferably by a spring (not shown).
  • the ends 24b of the two shafts 24 rest on the down areas 28a of the cam 28.
  • the cam 28 is provided with positioning notches N at the ends of each ramp up areas 28c, in order to cooperate with the ends 24b of the shafts 24 for preventing the lever 32 from going beyond the positions shown in figures 2 and 4.
  • stop means are provided between the cam 28 and the aperture 30 of the horizontal plate 20a in order to prevent the lever 32 from going beyond the desired positions.
  • the cam 28 can be provided with four substantially identical ramp up areas so that the retracted condition of the trolley device 18 can be obtained either with the end 32a of the operating lever 32 resting on the left side of the front panel or on the right side of such panel.
  • the machine can be lifted on the two wheels 26 by rotating the lever 32 in a counterclockwise or in a clockwise direction.
  • the cam 28 is preferably made of antifriction material (nylon or similar).
  • the trolley device according to the invention needs a very low handling force for lifting the appliance and it is very simple and economical. It does not need any modification of the chassis of the appliance; in other words it can be a cheap "optional” for high range more expensive machines, without requiring any specific feature on the low range less expensive machines.
  • the metal frame of the trolley device is integral with the chassis of the washing machine (i.e. the trolley is directly supported by the bottom plate of the washing machine).

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Handcart (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Claims (9)

  1. Appareil domestique pourvu d'un dispositif de chariot (18) destiné à permettre à l'appareil d'être déplacé facilement au moyens de roues ou de roulettes (26),
    caractérisé en ce que le dispositif de chariot (18)
    comporte deux éléments d'arbre (24) articulés chacun sur le bâti (10, 20) de l'appareil autour d'un axe horizontal (X-X), chaque élément d'arbre (24) ayant une première extrémité (24a) sur laquelle une roue rétractable (26) est montée de façon rotative et une deuxième extrémité (24b) prévue pour coopérer avec une came mobile (28) supportée par le bâti (10, 20) de l'appareil, la came (28) étant prévue pour être déplacée entre une première position dans laquelle les roues portées par les éléments d'arbre (24) sont dans une position rétractée, et une deuxième position dans laquelle les roues (26) sont dans une position abaissée, ce qui soulève l'appareil du sol.
  2. Appareil selon la revendication 1, caractérisé en ce que la came est une came rotative (28) qui est supportée de façon rotative par le bâti (10, 20) de l'appareil autour d'un axe vertical (Y-Y).
  3. Appareil selon la revendication 2, caractérisé en ce que la came (28) présente un bord supérieur en forme de couronne ayant des zones basses diamétralement opposées (28a) et des zones hautes (28b) reliées par des zones de rampes (28c).
  4. Appareil selon la revendication 1, caractérisé en ce que les axes horizontaux (X-X) de rotation des deux éléments d'arbre (24) sont sensiblement parallèles.
  5. Appareil selon la revendication 1, caractérisé en ce que les éléments d'arbre (24) sont supportés par un bâti auxiliaire (20) prévu pour être fixé sur le bâti (16, 10) de l'appareil.
  6. Appareil selon la revendication 5, caractérisé en ce que le bâti auxiliaire (20) présente une plaque (20a) sur laquelle deux éléments d'axe de rotation (22) pivotent, chaque élément d'axe (22) supportant l'élément d'arbre (24).
  7. Appareil selon la revendication 6, caractérisé en ce que la plaque (20a) du bâti auxiliaire (20) présente un bord avant vertical (20b) prévu pour être fixé sur le bâti (16, 10) de l'appareil.
  8. Appareil selon la revendication 3, caractérisé en ce que la came (28) est fabriquée dans une matière antifriction.
  9. Appareil selon l'une quelconque des revendications précédentes, caractérisé en ce que la came (28) est déplacée par l'intermédiaire d'un levier d'actionnement (32) dont l'extrémité libre (32a) peut reposer sur le côté gauche ou sur le côté droit de la partie inférieure (16) du panneau avant, les roues (26) étant rétractées dans ces deux positions du levier (32).
EP96109378A 1996-06-12 1996-06-12 Dispositif pour soulever les roues d'appareils domestiques Expired - Lifetime EP0812947B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES96109378T ES2165941T3 (es) 1996-06-12 1996-06-12 Dispositivo para levantar las ruedas de aparatos domesticos.
EP96109378A EP0812947B1 (fr) 1996-06-12 1996-06-12 Dispositif pour soulever les roues d'appareils domestiques
DE69616038T DE69616038T2 (de) 1996-06-12 1996-06-12 Rollenanhebevorrichtung für Haushaltsgeräte

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96109378A EP0812947B1 (fr) 1996-06-12 1996-06-12 Dispositif pour soulever les roues d'appareils domestiques

Publications (2)

Publication Number Publication Date
EP0812947A1 EP0812947A1 (fr) 1997-12-17
EP0812947B1 true EP0812947B1 (fr) 2001-10-17

Family

ID=8222886

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96109378A Expired - Lifetime EP0812947B1 (fr) 1996-06-12 1996-06-12 Dispositif pour soulever les roues d'appareils domestiques

Country Status (3)

Country Link
EP (1) EP0812947B1 (fr)
DE (1) DE69616038T2 (fr)
ES (1) ES2165941T3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5556567A (en) * 1994-05-09 1996-09-17 Henny Penny Corporation System and process for controlling dielectric ovens
GB2360203B (en) * 2000-03-18 2004-01-21 Notetry Ltd Steering mechanism for moving a domestic appliance
GB2458484B (en) 2008-03-19 2011-12-28 Ds Smith Plastics Ltd A dolly
IT1392968B1 (it) 2009-02-04 2012-04-02 Indesit Co Spa Sistema elettrodomestico
CN106567226A (zh) * 2016-11-14 2017-04-19 青岛海尔洗衣机有限公司 一种活动支脚及具有其的家用电器
CN109402959A (zh) * 2017-08-15 2019-03-01 青岛海尔滚筒洗衣机有限公司 升降装置和包括升降装置的洗衣机

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE636207A (fr) * 1962-08-14 Machine à laver les vêtements
GB1136591A (en) * 1964-10-05 1968-12-11 Severard Ltd Improvements in transport devices for domestic appliances
ES252681Y (es) * 1980-07-31 1981-10-16 Dispositivo elevador-rodante para maquinas lavadoras

Also Published As

Publication number Publication date
EP0812947A1 (fr) 1997-12-17
ES2165941T3 (es) 2002-04-01
DE69616038D1 (de) 2001-11-22
DE69616038T2 (de) 2002-06-06

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