EP0628686A1 - Charnière, de préférence pour un réfrigérateur ou congélateur - Google Patents

Charnière, de préférence pour un réfrigérateur ou congélateur Download PDF

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Publication number
EP0628686A1
EP0628686A1 EP94105094A EP94105094A EP0628686A1 EP 0628686 A1 EP0628686 A1 EP 0628686A1 EP 94105094 A EP94105094 A EP 94105094A EP 94105094 A EP94105094 A EP 94105094A EP 0628686 A1 EP0628686 A1 EP 0628686A1
Authority
EP
European Patent Office
Prior art keywords
hinge
lever
link
articulated
arm
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.)
Withdrawn
Application number
EP94105094A
Other languages
German (de)
English (en)
Inventor
Heribert Dr. Ballhaus
Georg Dorner
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.)
Liebherr Hausgeraete Ochsenhausen GmbH
Liebherr Hausgeraete GmbH
Original Assignee
Liebherr Hausgeraete Ochsenhausen GmbH
Liebherr Hausgeraete GmbH
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 Liebherr Hausgeraete Ochsenhausen GmbH, Liebherr Hausgeraete GmbH filed Critical Liebherr Hausgeraete Ochsenhausen GmbH
Publication of EP0628686A1 publication Critical patent/EP0628686A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00—Hinges with pins
    • E05D3/06—Hinges with pins with two or more pins
    • E05D3/18—Hinges with pins with two or more pins with sliding pins or guides
    • 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
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/624—Arms
    • E05Y2201/626—Levers
    • 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
    • E05Y2900/31—Application of doors, windows, wings or fittings thereof for domestic appliances for refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/02—Details of doors or covers not otherwise covered
    • F25D2323/024—Door hinges

Definitions

  • the invention relates to a hinge, preferably a hinge for a refrigerator or freezer, with a hinge arm guided in a straight line in a guide which can be fastened to a body part or the like and to which a pivotable part, preferably a door, is articulated about a pivot axis.
  • two articulated hinges make it easy to achieve swivel angles are greater than 90 ° and are in the range of 160 to 190 °, since hinge joints with only one hinge pin allow large swivel angles, which are only limited by the fact that the door strikes the cabinet parts of the cabinet part from the outside.
  • refrigerators and freezers are combination parts of kitchen furniture which, according to customer requirements, have a continuous and closed outer front, the doors of cupboards, plates and drawers being formed by wooden or plastic plates of the same design or clad with such plates.
  • the refrigerator and freezer doors In order to be able to combine refrigerators and freezers in fitted kitchens with other cabinet or furniture elements, it is necessary to provide the refrigerator and freezer doors with front doors that have hinges with special opening characteristics on the partition walls of the combination furniture parts, according to the desired opening angle of the refrigerator or freezer doors be articulated.
  • the front door covering the refrigerator or freezer door is articulated to an intermediate wall of the combination furniture parts by conventional double-link furniture hinges.
  • This type of articulation requires that the refrigerator or freezer door and the front door that veneers it pivot about different axes, so that both doors are connected to one another by a sliding guide, which is attached to the opening sides thereof, and thus by opening the front door forming a veneer Refrigerator or freezer door is opened or dragged along.
  • a sliding guide which is attached to the opening sides thereof, and thus by opening the front door forming a veneer Refrigerator or freezer door is opened or dragged along.
  • According to the opening characteristics of the furniture hinge hinging the front door however, only opening angles of about 90 ° can be achieved, since the doors would hit the end wall or neighboring front door at larger opening angles.
  • handlebar hinges cannot be designed and constructed, or only with a disproportionate amount of effort, in such a way that they can bear the weight of the refrigerator door and the front door, especially if the refrigerator door is additionally provided with compartments in which heavy goods such as cans or bottles are placed.
  • the loads to be borne by the hinge joints can be more than 50 kp, for which conventional handlebar hinges are too weak.
  • all hinge pins must bear the loads and that an increase in the diameter of the hinge pins additionally limits the opening angle that can be achieved.
  • it would be possible to provide more than two handlebar hinges for hinging a door which would not only increase the costs, but would also cause additional difficulties in assembly.
  • hinge joints for refrigerator and freezer doors it must be borne in mind that on the one hand they have the required load capacity and on the other they are designed for 100,000 opening and closing movements.
  • the object of the invention is therefore to provide a hinge with a high load-bearing capacity, a long service life and with a large opening angle, the hinge of which executes a straight extension movement when opening and accordingly a straight entry movement when closing.
  • the hinge should also enable the refrigerator or freezer doors to be opened by a considerably greater angle than 90 ° if the refrigerators or freezers are parts of built-in kitchens and the refrigerator or freezer doors have front doors which are facing.
  • this object is achieved in a hinge of the type specified at the outset in that the pivotable part is connected to the guide or the body part by a lever-link mechanism mechanism such that the pivoting part in the opening direction gives the hinge arm an extension movement .
  • the pivotable part which is usually a door
  • the hinge arm is only supported by the articulated connection to the hinge arm, which can be designed for the desired load-bearing capacity by appropriate dimensioning of the hinge axis.
  • the lever-link mechanism mechanism provided according to the invention only serves to extend and retract the hinge arm in its guidance, so that it is not loaded with the weight of the pivotable part or the door.
  • the guide and the hinge arm must be carried out so long that also the hinge arm is securely held in the guide in the extended position.
  • one end of a first link is articulated, the other end of which is articulated between the ends of a lever, the end regions on the one hand on the guide or on the body part and on the other hand at one end of a second Handlebar are hinged, the other end portion is hinged at a distance from the pivot axis on the pivotable part, such that the first link with the lever arm of the lever, which lies between its linkages on the first link and on the guide or the body part, one
  • the hinge arm extends and retracts the toggle lever and the second link with the lever forms a crank-like drive.
  • the hinge arm is moved in its guidance by a toggle lever system, a lever of the toggle lever system being part of a crank mechanism, the drive of which is derived from the pivoting movement of the pivotable part or the door.
  • the first link and the lever arm of the lever forming part of the toggle lever are expediently of approximately the same length.
  • the first link can be articulated approximately in the central region of the lever.
  • the location of the linkage and the length of the handlebars and the lever are selected according to the desired movement characteristics of the hinge arm.
  • a pivotable hinge part, to which the second link is articulated, is expediently articulated on the hinge arm.
  • This pivotable hinge part then forms the supporting part for the door.
  • the lever expediently has the shape of a flat triangle, the first link being articulated in the region of the flat tip of the triangle pointing in the opening direction.
  • This configuration enables the crank-like drive to be adapted favorably to the toggle lever system.
  • the hinge arm is expediently guided in the guide via rolling elements, preferably balls.
  • the guide can consist of a conventional ball bushing.
  • the hinge arm is loaded by a spring in the direction of its retracted position.
  • This spring prevents, for example, a refrigerator door from not remaining in an open position without being noticed.
  • the spring does not need to exert a greater closing pressure because magnetic strips in hermetic and freezer cabinets hermetically seal the door.
  • the toggle lever is in its over-center position at the largest possible opening angle of the hinge. In this over-dead center position, the spring loading the hinge arm holds the door in its open position.
  • the hinge shown in the drawing consists of a straight hinge arm 1, which is guided longitudinally displaceably via balls 2 held in cages in a straight guide 3, which is fastened to the inside of the outer lateral boundary wall 5 of the refrigerator and is foamed in the manner shown.
  • the outer end of the hinge arm 1 is provided with an outwardly pointing bend 6, which is provided with a bearing bore 7 for the hinge pin 8 of the door.
  • the refrigerator door 9, which carries a facing furniture panel 10, is mounted on the hinge pin 8.
  • the hinge arm 1 is mounted on the vertical bearing journal 8 on a plate 11 forming a pivotable hinge part.
  • the plate 11 is connected to the refrigerator door 9 in a load-bearing manner.
  • the guide 3 is provided with an angled, tab-shaped part 12, on which the lever 14 is pivotally mounted about the hinge pin 13.
  • the lever 14 consists of a stamped sheet metal part in the form of a flat triangle.
  • a first link 16 is pivotably mounted on a hinge pin 15, the other end of which is supported on the hinge pin 17 at the outer end of the hinge arm 1.
  • a second link 20 is pivotally mounted about the hinge pin 19, the other end of which is mounted on the plate 11 or door 9 via the hinge pin 21.
  • the first link 16 forms with the arm 23 of the lever 14 a toggle lever system.
  • the lever 14 is part of a crank-like drive, the lever 14 being given a pivoting movement via the second link 20 when the door 9 is opened and closed.
  • the torque transmitted from the door 9 to the lever 14 depends on the distance between the hinge pins 17 and 21, and this distance is corresponding to the desired extension and insertion force selected, which is to be transmitted from the toggle lever system to the hinge arm 1.
  • the hinge arm 1 is acted upon in a manner not shown by a spring in the direction of its retracted position. In this way, a certain closing torque is exerted on the door, particularly in the closing area.
  • the bolt 15, which forms the toggle joint is in an over-center position, so that the joint is held in its open position by the spring.
  • an upper and a lower hinge joint are provided, of which only the upper one can be seen from the drawing.
  • the opening of the refrigerator and the door seal 26 are provided with circumferential magnetic strips, which ensure a hermetic seal when the door is closed. For this reason, the hinge does not have to exert any special closing pressure on the device pressure in the closed position.
  • the refrigerator is rebuilt by plates 27, 28, which form a furniture remodeling of a fitted kitchen.
  • the opening characteristic of the hinge is chosen so that the refrigerator door 9 can be opened without bumping against the furniture panel 28, together with the furniture panel 10 fastened to it, so that the hinge arm 1 can be extended so far by the toggle lever crank mechanism that the Furniture plate 10 bypasses the plate 28 without hindrance, with an offset from the furniture side wall 27 to the adjacent front door of from 2 mm.
  • opening angles that are greater than 165 ° can be easily achieved with the hinge according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Refrigerator Housings (AREA)
EP94105094A 1993-06-11 1994-03-30 Charnière, de préférence pour un réfrigérateur ou congélateur Withdrawn EP0628686A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19939308732 DE9308732U1 (de) 1993-06-11 1993-06-11 Scharnier, vorzugsweise Scharnier für einen Kühl- oder Gefrierschrank
DE9308732 1993-06-11

Publications (1)

Publication Number Publication Date
EP0628686A1 true EP0628686A1 (fr) 1994-12-14

Family

ID=6894308

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94105094A Withdrawn EP0628686A1 (fr) 1993-06-11 1994-03-30 Charnière, de préférence pour un réfrigérateur ou congélateur

Country Status (2)

Country Link
EP (1) EP0628686A1 (fr)
DE (1) DE9308732U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0702122A1 (fr) * 1994-09-13 1996-03-20 Merloni Elettrodomestici S.p.A. Charnière avec point d'appui mobile pour appareils ménagers, en particulier pour fours de cuisson
WO2009013129A2 (fr) 2007-07-24 2009-01-29 BSH Bosch und Siemens Hausgeräte GmbH Appareil réfrigérant
US10845116B2 (en) 2016-10-17 2020-11-24 Whirlpool Corporation Hinge assembly

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19515811A1 (de) * 1995-04-29 1996-10-31 Fritz Hakemann Schrankförmige Kühlbox für Getränkefässer
DE202008013991U1 (de) * 2008-10-20 2010-04-01 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
CN105588398A (zh) * 2015-12-29 2016-05-18 青岛海尔股份有限公司 一种用于冰箱门体的铰链组件及冰箱

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH508802A (de) * 1969-05-16 1971-06-15 Franke Ag Walter Türscharnier
DE2204828A1 (de) * 1972-02-02 1973-08-09 Grob Karl Scharnierschieber mit kniehebel zur tuerenbefestigung
DE9206086U1 (de) * 1992-04-16 1993-05-19 Liebherr-Hausgeräte GmbH, 7955 Ochsenhausen Scharniergelenk für eine Kühl- oder Gefrierschranktür

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1401078A1 (de) * 1959-10-09 1968-10-03 Siemens Elektrogeraete Gmbh Kuehlschranktuer
DE2706821C2 (de) * 1977-02-17 1983-08-18 Hermann Forster AG, 9320 Arbon Scharnier für eine Kühlschranktür
DE2904397A1 (de) * 1979-02-06 1980-08-07 Forster Ag Hermann Kuehlschranktuer
DE3242350A1 (de) * 1982-11-16 1984-05-17 Paul Hettich & Co, 4983 Kirchlengern Schrank mit eingebautem kuehlschrank
DE8711891U1 (de) * 1987-09-02 1987-11-05 Coolit Isoliersysteme GmbH, 4520 Melle Isoliertür für ein Kühl- oder ein Gefrierhaus
DE9214897U1 (de) * 1992-11-02 1993-03-04 Liebherr-Hausgeräte GmbH, 7955 Ochsenhausen Kühl- und/oder Gefrierschrank

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH508802A (de) * 1969-05-16 1971-06-15 Franke Ag Walter Türscharnier
DE2204828A1 (de) * 1972-02-02 1973-08-09 Grob Karl Scharnierschieber mit kniehebel zur tuerenbefestigung
DE9206086U1 (de) * 1992-04-16 1993-05-19 Liebherr-Hausgeräte GmbH, 7955 Ochsenhausen Scharniergelenk für eine Kühl- oder Gefrierschranktür

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0702122A1 (fr) * 1994-09-13 1996-03-20 Merloni Elettrodomestici S.p.A. Charnière avec point d'appui mobile pour appareils ménagers, en particulier pour fours de cuisson
WO2009013129A2 (fr) 2007-07-24 2009-01-29 BSH Bosch und Siemens Hausgeräte GmbH Appareil réfrigérant
WO2009013129A3 (fr) * 2007-07-24 2009-06-11 Bsh Bosch Siemens Hausgeraete Appareil réfrigérant
CN101784852B (zh) * 2007-07-24 2013-02-06 Bsh博世和西门子家用器具有限公司 冰箱
US10845116B2 (en) 2016-10-17 2020-11-24 Whirlpool Corporation Hinge assembly

Also Published As

Publication number Publication date
DE9308732U1 (de) 1994-10-27

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