EP2202345B1 - Processus de fabrication d'une armoire électrique et armoire électrique ainsi fabriquée - Google Patents

Processus de fabrication d'une armoire électrique et armoire électrique ainsi fabriquée Download PDF

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Publication number
EP2202345B1
EP2202345B1 EP08022448.8A EP08022448A EP2202345B1 EP 2202345 B1 EP2202345 B1 EP 2202345B1 EP 08022448 A EP08022448 A EP 08022448A EP 2202345 B1 EP2202345 B1 EP 2202345B1
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EP
European Patent Office
Prior art keywords
bar
manufacturing process
modular units
portions
cabinet
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.)
Not-in-force
Application number
EP08022448.8A
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German (de)
English (en)
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EP2202345A1 (fr
Inventor
Luciano Sartor
Roberto Mazzocco
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.)
Electrolux Home Products Corp NV
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Electrolux Home Products Corp NV
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Publication date
Application filed by Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP08022448.8A priority Critical patent/EP2202345B1/fr
Publication of EP2202345A1 publication Critical patent/EP2202345A1/fr
Application granted granted Critical
Publication of EP2202345B1 publication Critical patent/EP2202345B1/fr
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Anticipated expiration legal-status Critical

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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

Definitions

  • the present invention relates to a manufacturing process of a cabinet for appliances, in particular household appliances, and an appliance cabinet so manufactured (see DE-A-197 06 285 ).
  • a first arrangement comprises a carrying structure for supporting appliance operating components that is closed by substantially planar panels.
  • Said carrying structure may be formed by a box element made of a sheet material bent to an L configuration so as to comprise in a single piece the bottom and a vertical rear wall of the cabinet.
  • the carrying structure is completed by a panel disposed opposite to said vertical wall and connected thereto by means of two upper rails.
  • Planar panels are removable from the carrying structure to give access to the appliance operating components while the latter continue to be supported by the carrying structure.
  • a cabinet of this type i.e. a cabinet wherein some of its outer walls has a support function for the appliance operational components, is disclosed in the European Patent EP 0208334 .
  • a structure of this type does not offer sufficient rigidity and requires complicated, time-consuming and thus expensive assembly operations, in particular, it appears rather impractical and inconvenient that the carrying structure for the appliance operating components is formed by a box element made of a sheet material cut to measure and bent to an L configuration.
  • the manufacturing process of such cabinet arrangement cannot be adapted easily to the production of cabinets having different shapes and dimensions without heavy modifications both in the process steps and in the production equipments.
  • an appliance cabinet comprises a supporting frame made of spars, mountings and crossbars on which operational components of the appliance are attached and a plurality of panels removably mounted on the frame.
  • a cabinet of this type i.e. a cabinet wherein the outer walls have no supporting function is disclosed in the French Patent Application FR 1 520 703 .
  • a cover for a domestic appliance made of a panel slidably received in a U-shaped part frame formed from a profile strip is disclosed in DE 197 06 285 .
  • This disclosure refers only to a portion, in particular a cover, of a domestic appliance cabinet. i.e. a structure for containing the appliance operational components.
  • a drawback of this second arrangement is that the supporting frame has to be dimensioned specifically for each kind of appliance according to its volume and overall dimensions. An adjustment of the frame structure dimensions requires necessarily a change of its bar components, therefore a manufacturing process for producing this kind of cabinet is rigid, i.e. unsuitable to be adapted to production of cabinets having different dimensions.
  • a further drawback of such known cabinets is that assembling operations require to weld or fasten each end portion of bars forming the supporting frame. The assembling process results therefore rather long and complicated.
  • the aim of the present invention is therefore to solve the noted problems, eliminating the drawbacks of the cited known art and thus providing a manufacturing process of an appliance cabinet allowing the production of cabinets having different dimensional characteristics without modifying the procedural steps of the process.
  • Another purpose of the present invention is to provide a manufacturing process of an appliance cabinet that simplifies the cabinet assembling operations and reduces the number of productive equipments needed for making an appliance cabinet.
  • a further purpose of the present invention is to provide a manufacturing process of an appliance cabinet wherein the use of standardized components and prefabricated articles is advantageously maximised and the production costs and power consumption are drastically reduced.
  • Still another purpose of the present invention is to provide a manufacturing process of an appliance cabinet wherein the time needed for completing the cabinet assembling operations is reduced compared to known cabinet manufacturing processes.
  • Another purpose of the present invention is to provide a manufacturing process for the production of cabinets for different uses such as cabinets for household appliance, for electric equipments and so on.
  • a purpose of the present invention is to provide an appliance cabinet ensuring an easy and prompt access to the inner region of the cabinet itself, thereby simplifying maintenance operations of appliance operational components housed within the cabinet.
  • Still another purpose of the present invention is to provide an appliance cabinet wherein the outer panels of the cabinet have no supporting function for operational components of an appliance.
  • a section bar 1 is used in the manufacturing process according to the invention for forming a plurality of modular units 10, 210 ( figures 4 and 9 ) which, in turn, are used to compose a supporting frame as it will be diffusely described below.
  • a section bar 1 suitable for carrying out the manufacturing process of the present invention can be obtained easily by extrusion of a metallic mass.
  • Section bar 1 can have a band-like shape as shown in figure 1 and 2 or it can be formed by two substantially perpendicular elongated walls protruding from a common line of intersection B. Said walls give the bar 1 a substantially L-shaped cross section wherein each wall forms an arm of the "L".
  • the same L-shaped cross section, useful for the construction of a modular unit 10, 210, can be also easily formed starting from a section bar 1 having a band-like shape, i.e. a substantially flat shape, by bending the bar 1 itself along a longitudinal direction B.
  • bar 1 comprises a plurality of longitudinal ribs 5 extending along the whole length of the section bar 1.
  • Said ribs 5 form two conjugated surfaces 6 and 7 arranged on opposite sides of the bar 1 respectively on the left and right portions of bar 1 with respect to the longitudinal direction B, i.e. the longitudinal bending line. In this way surfaces 6 and 7 of two section bars 1 can be slidably coupled.
  • each end region 2 of a section bar 1 is cut along a longitudinal direction so as to form two bar portions 3 and 4.
  • the longitudinal cut line coincides with the longitudinal direction B on which the bar 1 is bent to give it a L-shaped cross-section, in this way each bar portion 3, 4 carries one of said conjugated surfaces 6 and 7 placed on opposite sides of the bar 1.
  • FIG 3 it is shown how a modular unit 10 made according to a first embodiment is formed by bending bar portions 3 and 4 of each end region 2 of a section bar 1.
  • a right and left view of the same bar 1 is disclosed.
  • Bar portions 3 and 4 are bent one above the other such that, at the end of the bending operation (see figures 4 to 7 ), a right angle ⁇ is comprised between portions 3, 4 and a further right angle ⁇ is formed between each portion 3, 4 and a bar part 8 extending between the two opposite end regions 2.
  • said bar part 8 forms at least a part of an edge of a supporting frame for an appliance cabinet. Overlapping of portions 3 and 4 is favoured by the L-shaped cross section of bar 1. If needed, seats 9 ( figure 6 and 7 ) can be formed on one of said portions 3, 4 to allow one of them to lie down on the other one without forming creases.
  • a modular unit 10 made according to a first embodiment has a three dimensional shape reproducing preferably the whole edge and angular portion of a box-like structure.
  • Bar portions 3, 4 of two opposite ends of the same modular unit 10 lie on two parallel planes and are two by two parallel.
  • bar portions 3, 4 carrying the same conjugated surface 6, 7 are bent so as to be placed on the same side relative to the bar part 8. Even if in figures 4 and 5 modular unit 10 has been shown with bar portions 3, 4 of equal length, it is possible to form such portions 3, 4 having different extensions.
  • a supporting frame 11 can be formed associating each other four modular units 10 made according to a first embodiment.
  • Modular units 10 associating step of a manufacturing process according to the invention can be made by simply fixing each other bar portions 3, 4 of said units 10 for example through welding of by fastening means known per se.
  • first conjugated surface 7 carried by first bar portion 3
  • second conjugated surface 6 carried by second bar portion 4.
  • Ribs 5 provided on conjugated surfaces 6 and 7 avoid portions 3 and 4 to slip in a transversal direction with respect to the longitudinal sliding direction.
  • a slidable connection between portions 3, 4 of two modular units 10 allows a manufacturer to adjust the reciprocal positions of said units according to the final dimension required by the appliance cabinet. Such adjustment of the frame 11 dimensions is performed before reciprocally fixing said modular units 10. In this way the same modular units 10 can be used for the production of a large variety of supporting frames 11, and consequently of appliance cabinets, differing only in dimensions and volume.
  • overlapping regions of portions 3, 4 are useful for reinforcing and stiffening the supporting frame.
  • Arrows W and D indicate how the first and second conjugated surfaces 6 and 7 can be mated.
  • the same arrows W, D represent also the directions (width and depth) along which dimensions of a supporting frame 11 can be adjusted.
  • modular units 10 are fixed by welding and/or by fastening means known per sè, such as screws, rivets and the like.
  • Modular units fixing step takes place in the overlapping region of portions 3 and 4.
  • the so formed supporting frame 11 is shown in figure 10 and serves as a structure on which all operational components of the appliance can be attached. Particular arrangements may be provided on the supporting frame so as to facilitate the attachment of said operational components.
  • FIG 9 it is shown a supporting frame 211 to be assembled using eight modular units 210 made according to a second embodiment.
  • elements in common with the first embodiment have been referenced with the same numbers.
  • a modular unit 210 made according to a second embodiment has a three dimensional shape reproducing an angular portion and part of an edge portion of a supporting frame 211.
  • Such second embodiment of modular unit 210 allows to adjust not only width and depth of the supporting frame 211 as described with reference to figure 8 , but also its height. Width and depth of a supporting frame 211 to be formed with eight modular units 210 are adjusted simply sliding a first bar portion 3 of a first modular unit 210 onto a second bar portion 4 of a second modular unit 210 identical to the first one through conjugated surfaces 6, 7 until a predetermined reciprocal position of such units 210 is reached.
  • Arrows W and D in figure 9 show the directions along which frame 211 dimensions can be adjusted by means of a sliding movement of one conjugated surface 6, 7 onto the other.
  • overlapping bar portions 3, 4 of two associated units 210 are joined in a manner described with reference to the frame 11 obtained with modular units 10 made according to a first embodiment and depicted in figure 8 .
  • This process step is made for all the four modular units 210 forming the upper part of frame 211 and for all the four units 210 forming the lower part of the same frame 211.
  • connecting members 13 having, preferably, an L-shaped form so as to perfectly adhere to bar part 8.
  • Connecting members 13 are provided because conjugated surfaces 6, 7 on vertical bar part 8 cannot overlap once width and depth of supporting frame 211 have been fixed.
  • a selective height adjustment of frame 211 along directions indicated by arrows H shown in figure 9 can be achieved by providing a plurality of holes 14 arranged on members 13 such that each end region 2 of modular units 210 can be fixed on said members 13 in a plurality of positions.
  • holes 15 passing through conjugated surfaces 6, 7 are provided on the end region 2 opposite to the bar portions 3, 4 of each modular unit 210.
  • holes 15 are aligned with holes 14 provided on connecting members 13 for receiving a fastening means like a screw, a bolt or a rivet.
  • left upper and lower modular units 210 are shown with the respective end regions 2 in contact, i.e. in a configuration suitable to obtain the minimum height allowed by connecting members 13.
  • a slot/pin coupling can be provided between connecting members 13 and end regions 2 of bar parts 8, so as to define a range of infinite reciprocal positions between a maximum and minimum height for the upper and lower frame 211 parts.
  • FIG 10 it is shown how an appliance cabinet is completed by removably associating one or more panels 12 to a supporting frame 11, 211.
  • Said panels 12 may be easily attached to the frame 11, 211 by snap connectors or threaded connectors not shown in figure 10 . In this way, panels 12 can be easily removed when access to operational components of the appliance is needed.
  • panels 12 have been schematically represented as surfaces covering completely each face of the supporting frame 11, 211, however, if desired, each of said face can be covered by two or more panels 12. This may be the case wherein the supporting frame 11, 211 is part of a laundry treating machine, or another household appliance having a door for accessing an inner region of an operational component of the appliance and a control panel for driving the appliance work.
  • a cabinet produced with a manufacturing process according to the invention has a simplified structure and it is easy to be assembled.
  • the same cabinet allows a manufacturer to reduce necessary equipments for carrying out its production.
  • a manufacturing process according to the present invention can be used for the production of cabinets for many different kinds of appliances, in particular household appliances, like dishwashers, refrigerators, ovens, laundry treating machines, more particularly clothes dryers and laundry washing machines.
  • appliances having cabinets of different volume and dimensions can be easily produced without changing the manufacturing process steps.
  • said inventive process is advantageously versatile, economically convenient and realizable by means of automatic machines.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Casings For Electric Apparatus (AREA)

Claims (15)

  1. Processus de fabrication d'une carrosserie d'appareil ménager pour y soutenir les composants fonctionnels de l'appareil, ledit processus comprenant les étapes suivantes : (a) produire une pluralité d'unités modulaires (10, 210), chacune d'elles étant constituée par les opérations consistant à : (a1) produire une barre (1) profilée comportant une paire de zones terminales (2) et une pièce (8) de barre comprise entre lesdites zones terminales (2), (a2) sur au moins une zone terminale (2) de ladite barre (1) profilée, constituer deux parties (3, 4) de barre, (a3) cintrer lesdites parties (3, 4) l'une au-dessus de l'autre de façon à former un angle (α, β) sensiblement droit entre elles et entre lesdites parties (3, 4) et ladite pièce (8) de barre, en constituant de ce fait un cadre d'appui ; et (b) associer amovible au moins un panneau (12) audit cadre d'appui,
    ledit processus étant caractérisé en ce qu'il comprend en outre les étapes consistant à : (c) régler la position réciproque desdites unités modulaires (10, 210) suivant au moins une direction (W, D, H) ; et (d) assembler lesdites unités modulaires (10, 210).
  2. Processus de fabrication selon la revendication 1, dans lequel on effectue l'étape (c) en accouplant en coulissement les surfaces conjuguées (6, 7) constituées sur lesdites parties (3, 4) de barre de deux unités modulaires (10, 210) adjacentes.
  3. Processus de fabrication selon la revendication 1 ou 2, dans lequel on effectue l'étape (c) dans une direction (H) au moyen d'éléments de raccordement (13) pourvus d'un moyen pour régler de façon sélective ou continue la position réciproque de deux pluralités d'unités modulaires (10, 210).
  4. Processus de fabrication selon la revendication 3, dans lequel ledit moyen pour régler de façon sélective ou continue la position réciproque de deux pluralités d'unités modulaires (10, 210) comprend des trous (14, 15) ou des accouplements du genre fente/clavette.
  5. Processus de fabrication selon l'une quelconque des revendications précédentes, dans lequel ladite barre (1) profilée a une section transversale sensiblement en forme de L.
  6. Processus de fabrication selon la revendication 5, dans lequel on obtient ladite section transversale en forme de L en pliant ladite barre (1) profilée suivant une direction longitudinale (B).
  7. Processus de fabrication selon l'une quelconque des revendications précédentes, dans lequel dans l'étape (a2) on fabrique lesdites parties (3, 4) de barre en coupant au moins une partie de chaque zone terminale (2) de barre suivant une direction longitudinale (B).
  8. Processus de fabrication selon l'une quelconque des revendications précédentes, dans lequel ladite barre (1) profilée est fabriquée par extrusion et comprend les surfaces conjuguées (6, 7) constituées sur les côtés opposés de ladite barre (1).
  9. Processus de fabrication selon l'une quelconque des revendications précédentes, dans lequel l'étape (d) comprend un processus de soudage.
  10. Processus de fabrication selon l'une quelconque des revendications précédentes, dans lequel dans l'étape (b) lesdits panneaux (12) sont fixés au cadre d'appui (11, 211) par des ressorts à ergot ou des raccords filetés.
  11. Carrosserie d'appareil ménager pour y soutenir les composants fonctionnels de l'appareil, ladite carrosserie étant fabriquée suivant un processus de fabrication selon l'une quelconque des revendications 1 à 10 et comprenant un cadre d'appui (11, 211) et au moins un panneau (12) fixé amovible audit cadre d'appui (11, 211),
    moyennant quoi le cadre (11, 211) comprend des unités modulaires (10, 210), chacune d'elles constituant une partie angulaire et au moins une partie d'une partie du bord de ladite carrosserie, chacune des unités modulaires (10, 210) étant constituée par une barre (1) profilée comportant une paire de zones terminales (2) et une pièce (8) de barre comprise entre lesdites zones terminales (2) ; sur au moins une zone terminale (2) de ladite barre (1) profilée, chaque unité modulaire (10, 210) comprend deux parties (3, 4) de barre qui sont cintrées l'une au-dessus de l'autre de façon à former un angle (α, β) sensiblement droit entre elles et entre chacune desdites parties (3, 4) et ladite pièce (8) de barre,
    caractérisée en ce que lesdites unités modulaires (10, 210) sont associées l'une à l'autre dans une position réciproque qui est réglée suivant au moins une direction (W, D, H).
  12. Carrosserie d'appareil ménager selon la revendication 11, dans laquelle chacune desdites unités modulaires (10, 210) est faite d'une seule pièce.
  13. Carrosserie d'appareil ménager selon la revendication 11 ou 12, dans laquelle chacune desdites unités modulaires (10, 210) comprend des parties (3, 4) cintrées comportant des première et seconde surfaces conjuguées (6, 7) aptes à être accouplées par coulissement respectivement avec les seconde et première surfaces conjuguées (6, 7) d'une seconde unité modulaire (10, 210).
  14. Carrosserie d'appareil ménager selon l'une quelconque des revendications 11 à 13, dans laquelle chacune desdites unités modulaires (10, 210) comprend une barre (1) profilée comportant une paire de zones terminales (2) et une pièce (8) de barre comprise entre lesdites zones terminales (2), au moins une desdites zones terminales (2) comprenant deux parties (3, 4) cintrées l'une au-dessus de l'autre de façon à former un angle (α, β) sensiblement droit entre elles et entre chacune desdites parties (3, 4) et ladite pièce (8) de barre.
  15. Appareil ménager comprenant une carrosserie selon l'une quelconque des revendications 11 à 14.
EP08022448.8A 2008-12-24 2008-12-24 Processus de fabrication d'une armoire électrique et armoire électrique ainsi fabriquée Not-in-force EP2202345B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08022448.8A EP2202345B1 (fr) 2008-12-24 2008-12-24 Processus de fabrication d'une armoire électrique et armoire électrique ainsi fabriquée

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08022448.8A EP2202345B1 (fr) 2008-12-24 2008-12-24 Processus de fabrication d'une armoire électrique et armoire électrique ainsi fabriquée

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EP2202345A1 EP2202345A1 (fr) 2010-06-30
EP2202345B1 true EP2202345B1 (fr) 2017-03-01

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EP08022448.8A Not-in-force EP2202345B1 (fr) 2008-12-24 2008-12-24 Processus de fabrication d'une armoire électrique et armoire électrique ainsi fabriquée

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1255372A (fr) * 1960-01-20 1961-03-10 Esswein & Cie Soc Châssis-carrosserie plus particulièrement pour machine à laver
FR1520703A (fr) 1967-03-01 1968-04-12 Chalectro Cie Des Machiens A L Machine à laver à châssis en cage
IT209162Z2 (it) 1985-07-11 1988-09-16 Zanussi Elettrodomestici Mobile per macchina lavabiancheria.
DE3810647A1 (de) * 1988-03-29 1989-10-12 Licentia Gmbh Verbindung von gehaeusemantel und bodenteil bei haushaltsgeraeten, insbesondere bei von oben beschickbaren waschmaschinen
DE19706285A1 (de) * 1997-02-18 1998-08-20 Bosch Siemens Hausgeraete Rechteckförmiges Abdeckteil für eine Haushaltsmaschine

Non-Patent Citations (1)

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

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