EP1302150A1 - Charnière avec dispositif pour contrebalancer et freiner une porte - Google Patents

Charnière avec dispositif pour contrebalancer et freiner une porte Download PDF

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Publication number
EP1302150A1
EP1302150A1 EP02022587A EP02022587A EP1302150A1 EP 1302150 A1 EP1302150 A1 EP 1302150A1 EP 02022587 A EP02022587 A EP 02022587A EP 02022587 A EP02022587 A EP 02022587A EP 1302150 A1 EP1302150 A1 EP 1302150A1
Authority
EP
European Patent Office
Prior art keywords
mean
friction
connection
support
articulated members
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
EP02022587A
Other languages
German (de)
English (en)
Other versions
EP1302150B1 (fr
Inventor
Ermes Degli Esposti
Eros Gherardi
Teresa Ghedini
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.)
CMI SRL
Original Assignee
CMI SRL
CMI SRL
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
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Application filed by CMI SRL, CMI SRL filed Critical CMI SRL
Publication of EP1302150A1 publication Critical patent/EP1302150A1/fr
Application granted granted Critical
Publication of EP1302150B1 publication Critical patent/EP1302150B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E05D11/08—Friction devices between relatively-movable hinge parts
    • 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
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/1246—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis
    • E05F1/1269—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a traction spring
    • E05F1/1276—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a traction spring for counterbalancing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F24C15/023—Mounting of doors, e.g. hinges, counterbalancing
    • 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
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/252—Type of friction
    • E05Y2201/26—Mechanical friction
    • 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
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/262—Type of motion, e.g. braking
    • E05Y2201/264—Type of motion, e.g. braking linear
    • 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
    • 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
    • E05Y2900/308—Application of doors, windows, wings or fittings thereof for domestic appliances for ovens

Definitions

  • the present invention relates to mechanical component for appliances, white goods and the like; particularly the present invention concerns a counterbalanced and braked hinge device for a door mainly for dishwashing machine, ovens, household electrical appliances or similar and generally for private and industrial use appliances.
  • the doors are connected to the structure of the corresponding appliances by means of known hinge device allowing the rotation of said doors between a closing position, in which the door is almost vertical, and a opening position, by rotating around an horizontal axis positioned in the appliance lower portion.
  • Some types of known devices can translate their rotation axes, in order to avoid interferences between door and baseboards or similar elements and they can include elastic means for counterbalancing, namely the hinge capacity to hold the door, eventually loaded by the previously unknown weight of a panel assembled during the appliance installation, in any intermediate position between the closing and the opening positions.
  • the main drawback of said known device consists in that the means fit for the counterbalancing frequently cause too hard or too yielding movements of the door, and sudden blocks or clog of the latter, particularly in correspondence of quick movements.
  • the main object of the present invention is to propose a counterbalanced and braked hinge device for a door particularly for household electrical appliances and the like, fit for counterbalancing said door, countering its weight and allowing to block this latter in any extreme and intermediate position, with smooth and silent operation.
  • Further object is to propose a hinge device fit for counterbalancing doors having varying weight in an interval of several kilograms without needing regulations or settings.
  • Another object of the invention is to propose a hinge device having great constructive simplicity and small encumbrance, as well as economically convenient.
  • two hinge devices of the type here described which are assembled, for instance, in correspondence of the two lower comers of the opening, to be closed by the door, in such a way that the door can rotate around axes parallel to the line joining the two hinge devices.
  • connection mean substantially flat and blocked to the appliance body, for instance consisting of a dishwashing machine or an oven, known and not shown
  • numeral 2 indicates a support mean fixed to the door having the optional panel.
  • the support mean 2 has a substantially elongated shape and extends along a vertical plane almost parallel to the connection mean 1 and vertical with respect to the appliance, in an installation condition.
  • the support mean 2 is linked to the connection mean 1 by linking means 30, constituted by a first pivot 5 with fulcrum and axis orthogonal to the plane of the connection mean 1.
  • the device 100 includes balancing means 11, consisting for instance in a spring 33 stressed and reacting in extension or compression, and cam means 15 constituted by a shaped plate having approximately a triangular shape.
  • An end of the balancing means 11 is fixed to the appliance body and the remaining end is fixed to a vertex of the plate of the cam means 15, a second vertex of which is rotatably cascade connected to articulated members 8 and to the support mean 2. Consequently a related movement of the cam means 15, countered by the balancing means 11, corresponds to each movement of the door from the closing condition C to the opening condition A and vice versa.
  • the balancing means 11, by means of the articulated members 8 and the support mean 2 exert an elastic closing force to the opening force generated by the door weight.
  • the friction means 14, constituted by a first sliding block 36, are rotatably connected by means of a pivot 17 to the articulated members 8.
  • Friction means 14 constituted by a second sliding block 16, are rotatably connected to the remaining vertex of the plate by means of a pivot 17.
  • a second sliding block 16 is connected to a third vertex of the plate of the cam means 15.
  • the sliding blocks, first 36 and second 16, slide respectively with the articulated members 8 and the cam means 15 between two walls 12 of the connection mean 1.
  • the walls 12 are reciprocally almost parallel and perpendicular to the plane defined by the connection mean 1.
  • the articulated members 8 consist of a first shaped lever 22 whose ends are rotatably connected respectively to a vertex of the plate 15 and to the support mean 2.
  • the balancing means 11 and the articulated members 8 transmit to the cam means 15 respectively an elastic closing force and a reaction force. These opposed forces cause on the cam means 15 a torque, which rotates said cam means 15. The torque of the rotation forces is transmitted by the cam means 15 and by the articulated members 8 to the friction means 14, which consequently transmit a reaction torque to the walls 12. Then each friction mean 14 exerts a pressure against the respective wall 12, originating mutual frictions, particularly generating friction and counterbalancing the door.
  • connection mean 1 The free longitudinal edges of the walls 12 are folded inwards the connection mean 1, namely each one towards the other, and have a protrusion 13 in correspondence of the edge, in such way to avoid the disengagement of the friction means 14 from the walls 12.
  • the first and second sliding blocks 36 and 16 are made of material, for instance plastic, characterized by a determined friction coefficient to create friction forces such as to counterbalance an overall weight of the door and/or panel ranging from 2 to 12 kilograms.
  • the hinge device 100 also includes a block mean 25 and a stop mean 26 respectively carried out in the connection mean 1 and in the support mean 2.
  • the stop mean 26 mate the block mean 25 in correspondence of the maximum opening condition A.
  • the device further includes sliding means 24 of the support mean 2 and interposed between this latter and the connection mean 1 in order to avoid, slidingly mating the latter, excessive transversal slacks of the door.
  • the door stresses the hinge with a progressively increasing opening torque, since the weight of the door operates with a progressively increasing arm.
  • the friction means 14, being positioned in correspondence of the cam means 15 and the articulated members 8, exert against the respective walls 12 rather varying pressures with respect to the position and weight of the door and they guarantee a braking effect powerful but smooth, without jams and vibrations and suitable for stopping the door even in conditions adjacent to the maximum opening condition A.
  • the linking means 30 are constituted by a crank 4 and by an arm 6.
  • An end of the crank 4 is hinged by a fulcrum mean 38 and the remaining end is rotatably connected to the support mean 2 by means of a first pin 3.
  • An end of the arm 6 is hinged to the connection mean 1 by means of a second pivot 9 and the remaining end is rotatably connected to the support mean 2 by means of a second pin 7.
  • the fulcrum mean 38, the second pivot 9 and the pins, first 3 and second 7, have respectively fulcrums and axes orthogonal to the plane of the connection mean 1.
  • the fulcrum mean 38 is fixed closer to the door than the second pivot 9 and it is fixed at the bottom of the second pivot 9.
  • the first pin 3 is positioned in proximity of a lower peripheral portion of the support mean 2 and the second pin 7 is in a more central position in comparison to the longitudinal extension of the support mean 2.
  • the distance between the fulcrum mean 38 and the second pivot 9, is bigger than the distance between the pins, first 3 and second 7, so that it causes, in the passage from a closing condition C of the door to a maximum opening condition A of said door, firstly a raising and a separation of the latter from the related opening of the dishwasher or the appliance.
  • articulated members 8 are constituted by a connecting rod 20 whose ends are rotatably connected respectively to the first pin 3 and to a first end of a rocking lever 21, which is hinged in the middle to the connection mean 1 through a third pivot 23.
  • the ends of a second lever 32 of the articulated members 8 are rotatably connected respectively to the second end of the rocking lever 21 and to the cam means 15 to convert the motion of the support mean 2 in a linear motion of the cam means 15.
  • the walls 12, rather than being parallel, can have a convergent shape.
  • the convergence in the direction approximately of the first pivot 5 progressively increases the pressure exerted by the friction means 14 against the walls 12 and therefore the frictions in the passage from the closing condition C to the maximum opening condition A.
  • the main advantage of the present invention is to provide a counterbalanced and braked hinge device for a door particularly for household electrical appliances and the like, fit for counterbalancing said door, countering its weight and allowing to block this latter in any extreme and intermediate position, without jams, blocks or noisy vibrations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Hinges (AREA)
EP02022587A 2001-10-10 2002-10-08 Charnière avec dispositif pour contrebalancer et freiner une porte Expired - Lifetime EP1302150B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO20010620 2001-10-10
IT2001BO000620A ITBO20010620A1 (it) 2001-10-10 2001-10-10 Dispositivo a cerniera controbilanciato frenato per un portello

Publications (2)

Publication Number Publication Date
EP1302150A1 true EP1302150A1 (fr) 2003-04-16
EP1302150B1 EP1302150B1 (fr) 2010-01-13

Family

ID=11439652

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02022587A Expired - Lifetime EP1302150B1 (fr) 2001-10-10 2002-10-08 Charnière avec dispositif pour contrebalancer et freiner une porte

Country Status (4)

Country Link
EP (1) EP1302150B1 (fr)
DE (1) DE60235060D1 (fr)
ES (1) ES2335973T3 (fr)
IT (1) ITBO20010620A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6986187B2 (en) 2002-05-20 2006-01-17 Mansfield Assemblies Co. Hinge assembly with glide member
EP1523929A3 (fr) * 2003-10-13 2007-03-14 C.M.I. S.r.l. Dispositif d'équilibrage d'une porte d'un appareil electroménager
EP1884181A1 (fr) * 2006-08-04 2008-02-06 Bonferraro S.p.A. Charnière freinée pour porte d' appareil domestique.
EP2116167A1 (fr) 2008-05-08 2009-11-11 Electrolux Home Products Corporation N.V. Lave-vaisselle avec amortissements pour amortir la fermeture de la porte
EP1961901A3 (fr) * 2007-02-22 2010-09-01 Nuova Star S.p.A. Charnière pour ailes ou portes
ITBO20120244A1 (it) * 2012-05-04 2013-11-05 Nuova Star Spa Cerniera per ante o sportelli, di elettrodomestici quali forni, lavastoviglie o simili
ITBO20120257A1 (it) * 2012-05-09 2013-11-10 Cmi Srl Dispositivo a cerniera compensata con freno selettivo
WO2017097544A1 (fr) * 2015-12-10 2017-06-15 BSH Hausgeräte GmbH Charnière d'appareil ménager et appareil ménager muni de charnières d'appareil ménager de ce type
CN108487806A (zh) * 2018-02-02 2018-09-04 江苏星徽精密科技有限公司 一种具自动闭合和悬停功能的双支点洗碗机铰链
IT201800004849A1 (it) * 2018-04-24 2019-10-24 Cerniera per sportelli di elettrodomestici
CN112703296A (zh) * 2018-09-20 2021-04-23 C.M.I.铰链机械工业有限公司 缓冲并紧凑的铰链装置
IT202000003254A1 (it) * 2020-02-18 2021-08-18 Brera Cerniere Srl Elettrodomestico

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3704550A (en) * 1971-05-11 1972-12-05 Westinghouse Electric Corp Dishwasher door counterbalance arrangement
GB2235723A (en) * 1989-09-06 1991-03-13 Cmi Cerniere Mecc Ind Device for effecting semi-automatic opening and closing of doors arranged for pivoting about a horizontal axis
FR2727302A1 (fr) * 1994-11-29 1996-05-31 Fagor S Coop Ltda Mecanisme d'ouverture de la porte d'une machine a laver la vaisselle
EP0859197A2 (fr) * 1997-02-17 1998-08-19 C.M.I. S.r.l. Dispositif de charnière, en particulier pour une porte d'une machine électroménager ou similaire, avec un mouvement de la porte vers le haut et vers l'extérieur pendant l'ouverture
EP1183988A2 (fr) * 2000-08-30 2002-03-06 C.M.I. S.r.l. Dispositif de charnière contrebalancé avec mouvement vertical et frontal d'une porte en particulier pour lave-vaisselle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3704550A (en) * 1971-05-11 1972-12-05 Westinghouse Electric Corp Dishwasher door counterbalance arrangement
GB2235723A (en) * 1989-09-06 1991-03-13 Cmi Cerniere Mecc Ind Device for effecting semi-automatic opening and closing of doors arranged for pivoting about a horizontal axis
FR2727302A1 (fr) * 1994-11-29 1996-05-31 Fagor S Coop Ltda Mecanisme d'ouverture de la porte d'une machine a laver la vaisselle
EP0859197A2 (fr) * 1997-02-17 1998-08-19 C.M.I. S.r.l. Dispositif de charnière, en particulier pour une porte d'une machine électroménager ou similaire, avec un mouvement de la porte vers le haut et vers l'extérieur pendant l'ouverture
EP1183988A2 (fr) * 2000-08-30 2002-03-06 C.M.I. S.r.l. Dispositif de charnière contrebalancé avec mouvement vertical et frontal d'une porte en particulier pour lave-vaisselle

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6986187B2 (en) 2002-05-20 2006-01-17 Mansfield Assemblies Co. Hinge assembly with glide member
EP1523929A3 (fr) * 2003-10-13 2007-03-14 C.M.I. S.r.l. Dispositif d'équilibrage d'une porte d'un appareil electroménager
EP1884181A1 (fr) * 2006-08-04 2008-02-06 Bonferraro S.p.A. Charnière freinée pour porte d' appareil domestique.
EP1961901A3 (fr) * 2007-02-22 2010-09-01 Nuova Star S.p.A. Charnière pour ailes ou portes
EP2116167A1 (fr) 2008-05-08 2009-11-11 Electrolux Home Products Corporation N.V. Lave-vaisselle avec amortissements pour amortir la fermeture de la porte
US8677565B2 (en) 2012-05-04 2014-03-25 Nuova Star S.P.A. Hinge for doors of domestic appliances such as ovens, dishwashers or the like
ITBO20120244A1 (it) * 2012-05-04 2013-11-05 Nuova Star Spa Cerniera per ante o sportelli, di elettrodomestici quali forni, lavastoviglie o simili
WO2013167708A1 (fr) * 2012-05-09 2013-11-14 C.M.I. Cerniere Meccaniche Industriali S.R.L. Dispositif de charnière équilibré à frein
US9364132B2 (en) 2012-05-09 2016-06-14 Cerniere Meccaniche Industrial S.r.l. Balanced hinge device with brake
ITBO20120257A1 (it) * 2012-05-09 2013-11-10 Cmi Srl Dispositivo a cerniera compensata con freno selettivo
WO2017097544A1 (fr) * 2015-12-10 2017-06-15 BSH Hausgeräte GmbH Charnière d'appareil ménager et appareil ménager muni de charnières d'appareil ménager de ce type
CN108487806B (zh) * 2018-02-02 2023-08-15 江苏玖星精密科技集团有限公司 一种具自动闭合和悬停功能的双支点洗碗机铰链
CN108487806A (zh) * 2018-02-02 2018-09-04 江苏星徽精密科技有限公司 一种具自动闭合和悬停功能的双支点洗碗机铰链
IT201800004849A1 (it) * 2018-04-24 2019-10-24 Cerniera per sportelli di elettrodomestici
US10794102B2 (en) 2018-04-24 2020-10-06 Nuova Star S.P.A. Hinge for doors of domestic appliances
CN112703296A (zh) * 2018-09-20 2021-04-23 C.M.I.铰链机械工业有限公司 缓冲并紧凑的铰链装置
CN112703296B (zh) * 2018-09-20 2022-11-04 C.M.I.铰链机械工业有限公司 缓冲并紧凑的铰链装置
IT202000003254A1 (it) * 2020-02-18 2021-08-18 Brera Cerniere Srl Elettrodomestico
EP3868991A1 (fr) * 2020-02-18 2021-08-25 Brera Cerniere S.r.l. Appareil domestique

Also Published As

Publication number Publication date
DE60235060D1 (de) 2010-03-04
ES2335973T3 (es) 2010-04-07
EP1302150B1 (fr) 2010-01-13
ITBO20010620A1 (it) 2003-04-10

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