EP2977537A1 - Charnière pour portes d'appareils ménagers - Google Patents

Charnière pour portes d'appareils ménagers Download PDF

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Publication number
EP2977537A1
EP2977537A1 EP15177469.2A EP15177469A EP2977537A1 EP 2977537 A1 EP2977537 A1 EP 2977537A1 EP 15177469 A EP15177469 A EP 15177469A EP 2977537 A1 EP2977537 A1 EP 2977537A1
Authority
EP
European Patent Office
Prior art keywords
lever
box
shaped element
door
hinge
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
EP15177469.2A
Other languages
German (de)
English (en)
Other versions
EP2977537B1 (fr
Inventor
Marco Vanini
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.)
Nuova Star SpA
Original Assignee
Nuova Star SpA
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Filing date
Publication date
Application filed by Nuova Star SpA filed Critical Nuova Star SpA
Publication of EP2977537A1 publication Critical patent/EP2977537A1/fr
Application granted granted Critical
Publication of EP2977537B1 publication Critical patent/EP2977537B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E05F1/12—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
    • E05F1/1253—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a compression spring
    • E05F1/1261—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a compression spring for counterbalancing
    • 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
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/02—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
    • 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
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
    • E05F5/10—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops with piston brakes
    • 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
    • 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
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/638—Cams; Ramps
    • 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/20—Combinations of elements
    • E05Y2800/22—Combinations of elements of not identical elements of the same category, e.g. combinations of not identical springs
    • 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

  • This invention relates to a hinge for doors of domestic appliances.
  • this invention relates to a hinge for electric household appliances equipped with an internal damper.
  • the hinges used normally comprise a box-shaped structure connected by a kinematic mechanism to a lever, with the lever and the box-shaped structure designed to open mutually in a tilting fashion.
  • the box-shaped structure and the lever are designed so as to be connected one to a door and the other to a frame of the oven.
  • one between the box-shaped structure and the lever is fixed to the frame of the oven, at a side of the access opening of the latter, whilst the other is fixed to an edge of the door, which in this way is made tiltably movable relative to the above-mentioned frame.
  • Elastic elements act on the above-mentioned lever which influence the movement of the door during both opening and closing.
  • the above-mentioned elastic elements oppose, in a first step, the detachment of the door from the supporting frame of the oven and, in a second step, the subsequent rotation of the door and its consequent lowering to a fully open end of stroke position of the access opening of the oven.
  • the door under the combined action of its weight which facilitates the lowering and the elastic elements which perform a braking action, performs a gradual rotation.
  • a first drawback is due to the difficulty of inserting damping members in the limited space available for housing the hinges which are actually effective and long-lasting.
  • the aim of this invention is to provide a hinge for doors of domestic appliances which is free of the above-mentioned drawbacks and is, at the same time, structurally simple and practical and effective to use.
  • the numeral 1 in Figure 1 denotes in its entirety an oven comprising a frame 2 to which a door 3 is connected by two hinges 4 which enable it to be tiltably rotated about a horizontal axis A.
  • FIGS. 2 to 5 show preferred embodiments of a hinge 4 made according to this invention.
  • Each of the two hinges 4 comprises a first lever 5, fixed to the frame 2 of the oven 1 at a respective side of the access opening of the latter, and an box-shaped element 6, fixed to a respective edge of the door 3.
  • the first lever 5 is fixed to the frame 2 either directly or by interposing a respective box-shaped body not illustrated.
  • the box-shaped element 6 has an elongate shape and extends lengthways along a predetermined axis X.
  • the first lever 5 is pivoted on the box-shaped element 6 by means of a pin 7 and has a portion 5a constrained rigidly to the frame 2 to make the door 3 tiltably movable relative to the frame 2, between a closed end position, illustrated in Figure 5 , and an open end position, illustrated in Figure 2 .
  • the hinge 4 comprises a first helical spring 8 housed outside the box-shaped element 6, the first spring 8 abutting, with a relative lower end turn 8a, with a transversal end wall 9 of the box-shaped element 6.
  • the first spring 8 is kept in abutment against the above-mentioned transversal wall 9 by the head 11 of a compression rod 10 which is positioned coaxially inside the first spring 8 and which defines a guide for the first spring 8.
  • the compression rod 10 protrudes below from the first spring 8 with an end 10a, which passes through an opening made in the transversal wall 9 to couple, by means of a connecting element (not illustrated), to a tie rod 12, the lower end 12b of which is hinged to the first lever 5 by a pin 13 located near the above-mentioned pin 7.
  • the hinge 4 comprises a second helical spring 14 fitted on a respective rod 15.
  • the rod 15 has a first upper end 15a inserted in a slidable fashion in a suitable guide 16 integral with the wall of the box-shaped element 6.
  • the rod 15 has a second lower end 15a supporting a roller 15b.
  • the roller 15b is designed to engage with a respective cam-shaped portion 5b of the first lever 5 for defining with it a cam-follower coupling.
  • the second helical spring 14, together with the respective rod 15 defines means for closing the hinge 4, that is to say, elastic means designed to guarantee the closed position of the door 3 of the oven.
  • the first and the second helical spring 8, 14 define, for the hinge 4, respective elastic means designed to apply an elastic action on the first lever 5.
  • the hinge 4 comprises a gas or fluid damper cylinder 17 comprising a piston 18 and a cylindrical body 19.
  • the cylinder 17 is inserted in, and supported by, a respective containing body 20, in turn housed inside the box-shaped element 6.
  • a rocker lever 21 is pivoted on the containing body 20, designed to oscillate about a respective pivot axis Y, perpendicular to the plane of the drawings.
  • the pivot axis Y, with the containing body 20 positioned inside the box-shaped element 6, is therefore fixed relative to the latter.
  • the rocker lever 21 is located near the damper cylinder 17 to act on it.
  • the rocker lever 21 acts directly on the damper cylinder, that is, without the interposing of further mechanical parts.
  • the rocker lever 21 has, on opposite sides of the pivot axis Y, a first arm 21 a and a second arm 21 b.
  • the first arm 21 a is designed to engage with the above-mentioned cylindrical body 19 of the damper cylinder 17.
  • the hinge 4 comprises a control rod 22 of the rocker lever 21, designed to engage with the second arm 21 b of the latter.
  • a rectilinear guide 23 for longitudinal sliding of the drive rod 22 is made on the containing body 20.
  • control rod 22 is made of two separate portions 22a, 22b, respectively upper and lower, arranged in succession but physically disconnected from each other.
  • control rod 22 has an idle roller 24.
  • cam-shaped portion 5b of the first lever 5 and the idle roller 24 are designed to engage with each other to define a cam-follower coupling wherein, precisely, the roller 24 defines a follower element.
  • the tie rod 12 supports a contrast peg 25 of the damper cylinder 17.
  • the damper cylinder 17 engages the contrast peg 25 when it is engaged above in compression by the rocker lever 21.
  • rocker lever 21, drive rod 22 and contrast peg 25 define, for the hinge 4, respective means 30 for actuating the damper cylinder 17.
  • FIG. 3 shows the hinge 4 in a first intermediate position of the door 3, at which the cam-shaped portion 5b of the first lever 5 comes into contact with the roller 15b of the rod 15 for compressing the second helical spring 14.
  • the idle roller 24 located at the lower end of the control rod 22 is still disengaged from the cam-shaped portion 5b.
  • this relates to when the door 3 reaches an intermediate closing position, in which contact is made between the idle roller 24 and the cam-shaped portion 5b of the first lever 5.
  • the idle roller 24 transmits a corresponding translational movement, in the direction X.
  • the idle roller 24 is lifted, along the direction X, towards the upper part of the box-shaped element 6 (that is, towards the first spring 8) and in this movement pushes the lower portion 22b of the drive rod 22; the lower portion 22b in turn pushes the upper portion 22a which, having entered into contact with the arm 21 b of the rocker lever 21, causes an anticlockwise rotation in the latter (with reference to the representation of Figures 4 and 5 ) around the respective pivot axis Y.
  • the gas or fluid damper cylinder 17 applies its action for damping the reciprocal motion between the first lever 5 and the box-shaped shape 6.
  • the damping action is different to the closing action performed by the springs 8, 14 and makes the movement of the door 3 towards the completely closed position both gradual and slowed down.
  • the fact of dividing the drive rod 22 into two separate pieces 22a, 22b allows one of these portions to be integrated inside the containing body 20 which houses the damper cylinder 17 and also the rocker lever 21.
  • This configuration allows a unit to be provided which is easily assembled inside the box-shaped element 6.
  • the hinge 4 may or may not be provided with a damper element.
  • the upper portion 22a of the control rod 22 has a slot 26 designed to engage in a sliding fashion with a respective pin 27.
  • the slot 26 and the pin 27 allow the portion 22a to remain stably connected to the containing body 20 also if it is removed from the box-shaped element 6.
  • the hinge 4 according to this invention has major advantages.
  • a first advantage, connected to the adoption of the drive rod 22 and of the rocker lever 21 is relative to the fact that, according to the length of the two arms 21 a, 21 b, it is easy to determine the operating interval of the damper member 17 to enable it to act in a specific predetermined stretch of the closing of the door 3.
  • a further advantage is due to the possibility of using, again thanks to the possibility of varying the length of the two arms 21 a, 21 b, damper cylinders 17 of the commercial type and having strokes which are also longer than 10 mm.
  • pivot axis Y is fixed relative to the box-shaped element 6 also simplifies the dismantling/reassembling of the lever 21, that is to say, without affecting other components the hinge.
  • the above-mentioned means 30 for driving the gas or fluid cylinder 17 comprise a pushing element which acts in conjunction with the rocker lever 21 to compress the cylinder 17 bilaterally.
  • the cylinder 17 is compressed on both sides, above by the rocker lever 21 and below by a respective pushing element.
  • the pushing element is defined by the rod 15 for supporting the second helical spring 14, the rod 15, when close to reaching the closing position of the door 3, pushing the piston 18 of the damper cylinder 17.

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
EP15177469.2A 2014-07-22 2015-07-20 Charnière pour portes d'appareils ménagers Not-in-force EP2977537B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITBO20140417 2014-07-22

Publications (2)

Publication Number Publication Date
EP2977537A1 true EP2977537A1 (fr) 2016-01-27
EP2977537B1 EP2977537B1 (fr) 2018-02-14

Family

ID=51662196

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15177469.2A Not-in-force EP2977537B1 (fr) 2014-07-22 2015-07-20 Charnière pour portes d'appareils ménagers

Country Status (1)

Country Link
EP (1) EP2977537B1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107587806A (zh) * 2017-10-10 2018-01-16 宁波欧燕电器有限公司 阻尼铰链
IT201600091383A1 (it) * 2016-09-09 2018-03-09 Nuova Star Spa Cerniera ammortizzata.
US20180216832A1 (en) * 2017-02-02 2018-08-02 Mansfield Engineered Components, Inc. Hinge assembly with slow close and optional slow open characteristics
US10890334B2 (en) 2017-02-02 2021-01-12 Mansfield Engineered Components, Inc. Hinge assembly with slow close and/or slow open characteristics
WO2023085529A1 (fr) * 2021-11-15 2023-05-19 서원코리아 주식회사 Charnière de porte

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007012603U1 (de) * 2007-09-07 2009-01-22 Hettich-Oni Gmbh & Co. Kg Türscharnier eines Haushaltsgerätes
EP2362044A2 (fr) * 2010-02-18 2011-08-31 BSH Bosch und Siemens Hausgeräte GmbH Appareil ménager, notamment four de cuisson, et procédé de déplacement d'une porte
WO2012168748A1 (fr) * 2011-06-08 2012-12-13 Faringosi Hinges S.R.L. Charnières pourvues de moyens élastiques et d'un amortisseur
WO2013185349A1 (fr) * 2012-06-15 2013-12-19 Xiao Yousong Charnière flexible de structure intelligente

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007012603U1 (de) * 2007-09-07 2009-01-22 Hettich-Oni Gmbh & Co. Kg Türscharnier eines Haushaltsgerätes
EP2362044A2 (fr) * 2010-02-18 2011-08-31 BSH Bosch und Siemens Hausgeräte GmbH Appareil ménager, notamment four de cuisson, et procédé de déplacement d'une porte
WO2012168748A1 (fr) * 2011-06-08 2012-12-13 Faringosi Hinges S.R.L. Charnières pourvues de moyens élastiques et d'un amortisseur
WO2013185349A1 (fr) * 2012-06-15 2013-12-19 Xiao Yousong Charnière flexible de structure intelligente

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600091383A1 (it) * 2016-09-09 2018-03-09 Nuova Star Spa Cerniera ammortizzata.
EP3293332A1 (fr) * 2016-09-09 2018-03-14 Nuova Star S.p.A. Articulation amortie
US9995075B2 (en) 2016-09-09 2018-06-12 Nuova Star S.P.A. Dampened hinge
US20180216832A1 (en) * 2017-02-02 2018-08-02 Mansfield Engineered Components, Inc. Hinge assembly with slow close and optional slow open characteristics
US10082298B2 (en) * 2017-02-02 2018-09-25 Mansfield Engineered Components, Inc. Hinge assembly with slow close and optional slow open characteristics
US10451291B2 (en) 2017-02-02 2019-10-22 Mansfield Engineered Components, Inc. Hinge assembly with slow close and optional slow open characteristics
US10890334B2 (en) 2017-02-02 2021-01-12 Mansfield Engineered Components, Inc. Hinge assembly with slow close and/or slow open characteristics
US11543135B2 (en) 2017-02-02 2023-01-03 Mansfield Engineered Components, Inc. Hinge assembly with slow close and/or slow open characteristics
CN107587806A (zh) * 2017-10-10 2018-01-16 宁波欧燕电器有限公司 阻尼铰链
CN107587806B (zh) * 2017-10-10 2023-04-11 宁波欧燕电器有限公司 阻尼铰链
WO2023085529A1 (fr) * 2021-11-15 2023-05-19 서원코리아 주식회사 Charnière de porte

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