EP2138657A2 - Dispositif de fermeture d'une porte d'appareil ménager - Google Patents

Dispositif de fermeture d'une porte d'appareil ménager Download PDF

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Publication number
EP2138657A2
EP2138657A2 EP09100343A EP09100343A EP2138657A2 EP 2138657 A2 EP2138657 A2 EP 2138657A2 EP 09100343 A EP09100343 A EP 09100343A EP 09100343 A EP09100343 A EP 09100343A EP 2138657 A2 EP2138657 A2 EP 2138657A2
Authority
EP
European Patent Office
Prior art keywords
ball
door
closing device
head
ball seat
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Withdrawn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
EP09100343A
Other languages
German (de)
English (en)
Other versions
EP2138657A3 (fr
Inventor
Serafin Abril Llarregui
Jose Manuel Lamuela Rosano
Iñigo Ozcoidi Samper
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens 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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2138657A2 publication Critical patent/EP2138657A2/fr
Publication of EP2138657A3 publication Critical patent/EP2138657A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/0042—For refrigerators or cold rooms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/0042—For refrigerators or cold rooms
    • E05B65/005—For refrigerators or cold rooms with sliding bolt
    • 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
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/028—Details
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
    • E05C19/02—Automatic catches, i.e. released by pull or pressure on the wing
    • E05C19/04—Ball or roller catches

Definitions

  • the present invention relates to a closing device of a household appliance door, in particular the door of a refrigerator or a refrigerator-freezer. Furthermore, the invention relates to a household appliance with a door and such a closing device.
  • a device which serves the closing and opening of household appliances, which consists of a door handle and a slidably mounted slide.
  • facilities for the automatic closing of refrigerator doors are known. Such devices are used, for example, to keep closed with magnetic strip doors of refrigerators or closed by suction due to the air cooling freezer combinations to avoid cold losses that can occur when the door is only briefly closed and unnoticed by the user that the door is doing not closed properly.
  • the above-mentioned devices are installed during the manufacture of the household appliance in the door hinge of the same; They are technically complex, consist of many parts and can be retrofitted or even replaced with difficulty.
  • the present invention is therefore based on the object or the technical problem of providing a closure device of a household appliance door, in particular the door of a refrigerator or a refrigerator-freezer, which reliably avoids cold losses due to wrongly closed door, but at the same time easy to handle and , is inexpensive to manufacture and easy to retrofit or replaceable; Furthermore, a household appliance is to be provided with a door and such a closing device.
  • the locking device according to the invention By means of the locking device according to the invention, a user of a household appliance, which is equipped with such a closing device, displayed an insufficient closing state of the household appliance door and cold losses due to a wrongly closed door can be reliably avoided.
  • the locking device according to the invention but structurally simple design, easy to handle, inexpensive to produce and easy to retrofit or replaceable.
  • the solution according to the invention saves components and assembly time and thus saves overall costs.
  • the closing device is characterized in that it comprises at least one ball seat and a ball head, which is in the closed state of the locking device with the ball seat in engagement, wherein at least either the ball head or the ball seat is attachable to the door.
  • the ball head is arranged on a fixed part of the household appliance, while the ball holder is arranged on a movable part (ie here the door), or vice versa.
  • a ball head should not be understood to mean only an exactly spherical or spherical segment-shaped head.
  • the ball head may also be slightly oval, or even as a polyhedron with a plurality of small, straight surface elements, which together form a ball head approximate, similar shape.
  • the invention contemplates that when the appliance door is only momentarily closed, it either closes properly or keeps it open enough for a user to notice.
  • the door is correctly closed, the ball head is received in the eg opposite, preferably dish-like, pan-shaped or annular ball seat, so that the ball head sits securely in the ball seat and large parts of its spherical surface bear against the inner surface of the ball seat.
  • the locking device according to the invention then securely holds the door in a fully closed position.
  • Both the ball head or its ball-head holder and the ball seat are designed or matched to one another so that they can deform slightly elastically and reversibly under increased force and move slightly relative to each other. This can, in addition to a suitable choice of the materials used and their respective elasticities and compressive strengths and a constructive provided deformability of the ball head and the ball receiving associated components, for. be done by the ball head is pressed something in his ball-head bracket, so that the ball head finally slipped on further pulling the door from the ball seat and can release the door, which is then fully open.
  • the ball stud and its retainer and ball seat due to said resilient, reversible properties, return to their original shapes and positions on their associated component of the household appliance.
  • the ball seat and the ball pins are selected and thus achieved that when opening and closing the door an easily surmountable, but noticeable resistance is present.
  • the ball pin is pushed from a starting position in which he is out of engagement with the ball seat, pushed or pressed in the ball socket in a similar manner, so that he can then engage in this or engage and thus the Door is held in the closed position.
  • the ball head has a shaft which forms a ball pin together with the ball head, and the ball pin is receivable in a socket.
  • the shaft is preferably rectilinear, but may also be angled or bent for certain applications, or provided with additional integral or separate fasteners. In this way, the ball head is safe and reliable mountable, and it can be taken by means of the shaft even more additional functions, as will be explained below.
  • the shank of the ball stud is preferably axially movable in the bush, in particular axially movable against a biasing force or resistance. In this way, the ball head can be easily moved into the ball seat and engage there when the door, which is associated with the closing device according to the invention is closed - or pressed out of the ball seat when the door is opened with a certain force.
  • the ball pin is movable in the bushing against a resilient biasing force.
  • the elastic biasing force may e.g. by the elasticity of the bush or a portion thereof or e.g. can be achieved by a spring element arranged in the bushing.
  • a further advantageous embodiment of the closure device according to the invention provides that a stop (in particular a stop of the ball receptacle) is provided for the ball head, to which the ball head abuts when closing the locking device and before engaging with the ball seat.
  • a stop in particular a stop of the ball receptacle
  • the ball head In order to bring the ball head in the ball seat, a user must therefore apply a certain minimum force so that the ball head overcomes the stop and snaps into the ball seat. Otherwise, the ball head remains in front of the stop, whereby the door associated with the closing device is kept open so that it is immediately recognizable to the user and the latter can then close the door properly. So unwanted cold losses can be avoided by only partially closed doors.
  • An advantageous development of the invention provides that the ball seat and / or the socket and / or the door, or parts or portions thereof, are elastically deformable to allow the engagement of the ball head in the ball seat when closing the door. As a result, many items and complicated example spring structures are avoided, which would otherwise allow the engagement or locking of the ball pin in the example spherical receiving socket of the ball socket.
  • a further advantageous embodiment of the invention provides that the ball seat and / or the socket are designed to be identical, so that the ball seat is used as a socket, and vice versa. This dual function of the components mentioned reduces the number of components and greatly simplifies the construction and assembly.
  • Yet another advantageous development of the invention provides that the ball pin is seated in the bushing with a press fit. This arrangement not only secures the ball pin captive on the socket, but is also advantageous if the ball pin is not or only slightly to move in the socket and the engagement of the ball is to be achieved by the elasticity of another associated component.
  • the ball seat and the socket can each be received in a door journal or a frame of the household appliance which can be provided.
  • the invention thus makes the existing openings in household appliance doors, e.g. the pin receptacles for the door hinges, which usually allow the optional opening a door right or left, to use.
  • the closure device according to the invention with its ball or ball stud and, e.g. mounted at least one elastically deformable socket.
  • the locking device can be installed either at the top, at the bottom or on the side of the door used and the frame used.
  • the door pin receptacle of the door thus assumes an advantageous multiple function.
  • the ball head or ball pin can be received in a door journal receptacle which can be provided on the door or a frame of the domestic appliance.
  • the shank diameter of the ball stud is preferably chosen so that it directly, ie without an additional socket, can be added to the pin holders for the door hinges.
  • the pin receiving a corresponding elasticity is preferred.
  • the locking device comprises a ball-and-socket element with two opposing ball-head sections and an attachment section therebetween for attachment to a stationary area of a household appliance.
  • the stationary area can be, for example, a housing area or frame area of the household appliance situated between two doors located one above the other.
  • a ball head element can then be used simultaneously for two doors, each door then being assigned a ball head.
  • each door has a corresponding ball seat.
  • a ball receiving element could be provided with two opposing ball seats and a mounting portion therebetween for attachment to a stationary area of the household appliance.
  • the ball receptacle or the bush can be made, for example, of unreinforced, reinforced and / or filled thermoplastic material, in particular of polycarbonate (PC), thermoplastic polyurethane (PU), polyester, polyethylene terephthalate (PET), polystyrene (PS), syndiotactic polystyrene, acrylonitrile-butadiene Styrene (ABS), polypropylene oxide (PPO), polysulfone (PSO), polyphenylene sulfide (PPS), polyimide (PI), polyketone, polyetheretherketone (PEEK), polyamide (PA), polybutylene terephthalate (PBT), polyolefin, polypropylene (PP), Polymethylene (PE) or be made from a mixture of these substances.
  • PC polycarbonate
  • PU thermoplastic polyurethane
  • PET polyethylene terephthalate
  • PS polystyrene
  • the elasticity of the materials used is selected so that a locking and pushing out or pulling out of the ball head is always guaranteed safe. Further, due to these materials, the elasticity of said parts may be sufficient even without provision of an abutment so that the door is sprung back so far in case of insufficient wear, that the user notices the failure of the closing operation.
  • the ball head or ball stud may be made of metal, unreinforced, reinforced and / or filled thermoplastic, in particular polycarbonate (PC), thermoplastic polyurethane (PU), polyester, polyethylene terephthalate (PET), polystyrene (PS), syndiotactic polystyrene, acrylonitrile Butadiene-styrene (ABS), polypropylene oxide (PRO), polysulfone (PSO), polyphenylene sulfide (PPS), polyimide (PI), polyketone, polyetheretherketone (PEEK), polyamide (PA), polybutylene terephthalate (PBT), polyolefin, polypropylene (PP) , Polyethylene (PE), which preferably has an equal or lower elasticity than the plastic of the ball seat, or be made of a mixture of these substances.
  • PC polycarbonate
  • PU thermoplastic polyurethane
  • PET polyethylene terephthalate
  • PS polystyrene
  • the household appliance according to the invention in particular refrigerator or refrigerator / freezer, has at least one door and at least one closing device associated with the invention. Essentially, the same advantages can be achieved with this household appliance, which have already been explained above in connection with the closing device according to the invention.
  • the household appliance has a door with a door journal receptacle in which the ball seat and / or the bushing and / or the ball stud of the closing device can be attached.
  • the closing device is arranged in an area between these two doors;
  • the locking device is associated with at least one of these doors, but in particular both doors.
  • Fig. 1 shows the schematic structure of a preferred embodiment of a locking device according to the invention, which is used in a household appliance according to the invention.
  • the household appliance is in this example a refrigerator in the form of a refrigerator and / or freezer.
  • the refrigerator has, inter alia, a door 4 and a housing with a frame 5.
  • the locking device essentially comprises a ball stud 2 with a spherical ball head 2a, a ball seat 3 and a bushing 7, wherein the ball seat 3 and the bush 7 are designed to be identical, so that a ball seat 3 can also be used as a bush 7, and vice versa , These parts are mounted in an existing, unused door pin receptacle 6 of the refrigerator.
  • the door studs defining the door pivot axis are receivable in "used" door pivot receivers (not shown) located on an opposite side of the door.
  • the door journal receptacles may, for example, be arranged on a left and right end of a door edge cover strip and / or on an upper and / or lower frame region of a housing of the refrigeration device or at another suitable position.
  • the ball pin 2 is inserted into the socket 7, which is placed together with the ball pin 2 in one of the door pin receptacles 6.
  • the ball seat 3 is placed in a ball pin 2 opposite the door pin receptacles 6.
  • the Matzapfennessn 6 produced in an injection molding process of thermoplastic material consist of two integrally formed, merging into each other hollow cylinders and have ventilation openings 8, which ensure that in the formed by Matzapfening 6, bushing 7 or 3 and ball stud 2 volume existing air is not compressed.
  • the ball stud made of a metallic material in this embodiment is composed of the ball head 2a and an elongated shaft 2b which enables insertion and stable mounting of the ball stud 2 in the bush 7.
  • identical spherical receptacles 3 and 7 sockets consist in their basic form essentially of two mutually standing hollow cylinders 7a and 7b with different diameters and different lengths.
  • the longer and narrower hollow cylinder 7b has at its tapered end a notch, which simplifies the mounting in the corresponding door pin receptacle 6.
  • the second shorter hollow cylinder 7a is wider and has a shell-like, spherical ball seat, which serves to receive the ball head 2a or a portion thereof.
  • the shorter hollow cylinder 7a serves to hold the bolt in the bushing 7 in a stable manner.
  • Both the ball receptacles or bushes 3, 7 and an alternative embodiment of the ball bolt 2 can be produced in a cost-effective injection molding process in order to save costs.
  • These assembled and recorded in the door journal receptacles 6 parts form the essential part of the closing device 1 according to the invention.
  • the Fig. 2 illustrates a cross-sectional view of the built-in locking device in a closed door position.
  • the ball pin 2 is fitted with clearance in the socket 7.
  • This ball pin socket combination and serving as a ball seat 3 socket are mounted in the corresponding Schozapfenfactn 6.
  • the shape and surface of the ball head 2a is precisely matched to the shape and surface of the socket opening, so that both parts with their associated surfaces in the closed state exactly abut each other and are engaged. This ensures that the door 4 is kept and secured in this closed position.
  • the resistance is set, which the user feels when opening or closing the door 4, and on the other hand determines the holding force of the closing device in the closed state of the door.
  • a lateral edge or collar 3 a of the ball seat 3 is used in the present case as a stop for the ball head 2 a, to which the ball head 2 a when closing the door 4 and the closing device and before engaging with the ball seat abuts. Inadequate closing of the door therefore keeps it open so that it becomes apparent to a user. Since the collar 3a is preferably made of the same elastic plastic as the ball seat itself, this can the door 4 on the ball head 2a also rebound or rebound, when the ball head 2a with too little force, for an engagement of ball head 2a and Ball seat 3 is not sufficient, abuts against the stop.
  • Fig. 3 Furthermore, a schematic view of the closing device according to the invention is shown in the closed position.
  • the lower surface of the ball pin 2 is seated in the wall of the bushing 7 holding it, and the ball head 2a is seated securely in the ball socket 3 so that the door 4 is reliably held in this closed position.
  • the locking device according to the invention may for example be arranged only between two superimposed doors.
  • This variant is conceivable, for example, in doors, which are held in the closed state by means of a magnet or other locking mechanism on the housing or a frame of the household appliance.
  • the force that is necessary to bring the ball head out of engagement with the associated ball socket, should then be less than the force required to cancel the magnetic bond between the relevant door and the housing or frame. Otherwise, the second door would be opened. Should such an effect be desired, of course, the holding force of ball and ball seat can be adjusted accordingly.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)
EP09100343.4A 2008-06-27 2009-06-18 Dispositif de fermeture d'une porte d'appareil ménager Withdrawn EP2138657A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200802042A ES2331291B1 (es) 2008-06-27 2008-06-27 Dispositivo de cierre de una puerta de aparato domestico.

Publications (2)

Publication Number Publication Date
EP2138657A2 true EP2138657A2 (fr) 2009-12-30
EP2138657A3 EP2138657A3 (fr) 2014-01-01

Family

ID=41319753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09100343.4A Withdrawn EP2138657A3 (fr) 2008-06-27 2009-06-18 Dispositif de fermeture d'une porte d'appareil ménager

Country Status (3)

Country Link
EP (1) EP2138657A3 (fr)
ES (1) ES2331291B1 (fr)
RU (1) RU2009121151A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1022458B1 (nl) * 2014-10-01 2016-04-06 Deweer Sanitair Bvba Handgreep en een panelensamenstel voorzien van dergelijke handgreep

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1914542A (en) * 1931-12-04 1933-06-20 American Hardware Corp Door stop and holder
US2108326A (en) * 1936-11-11 1938-02-15 George R Adams Door latch
DE3124457A1 (de) 1981-06-22 1982-12-30 Gronbach, Wilhelm, 8090 Wasserburg Schliessvorrichtung fuer tueren, vorzugsweise kuehlschranktueren
DE3218838A1 (de) 1982-05-19 1983-11-24 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Einrichtung zum selbsttaetigen schliessen von tueren bei kleinerem oeffnungswinkel, insb. kuehl- oder gefrierschranktueren
EP1524483A1 (fr) 2003-10-14 2005-04-20 Liebherr-Hausgeräte Ochsenhausen GmbH Poignée de porte pour un réfrigérateur ou un congélateur

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US945461A (en) * 1909-03-19 1910-01-04 Richard W Hubbard Door-check.
US1502801A (en) * 1921-07-30 1924-07-29 Walter G Scherer Door and window catch
US1787296A (en) * 1929-08-27 1930-12-30 Wild Gunther Philip Door fastener
US2001740A (en) * 1931-10-31 1935-05-21 Gen Motors Corp Refrigerator latch
US1928767A (en) * 1932-12-15 1933-10-03 Ternstedt Mfg Co Latch
FR790405A (fr) * 1934-08-21 1935-11-21 Dispositif de fermeture pour enceintes réfrigérées
US2153819A (en) * 1934-08-30 1939-04-11 Gen Motors Corp Latch
US2315337A (en) * 1940-05-14 1943-03-30 Katz David Refrigerator door fastener
US2482959A (en) * 1946-06-10 1949-09-27 Winters & Crampton Corp Refrigerator latch
GB786294A (en) * 1955-05-12 1957-11-13 Fritz Gloeckner Push-pull fasteners and method of fixing such fasteners
GB810871A (en) * 1956-03-06 1959-03-25 Design And Developments Ltd Cupboard or like door fastenings
JPH08210008A (ja) * 1995-02-03 1996-08-13 Takigen Mfg Co Ltd 扉等の保持装置
DE29621527U1 (de) * 1996-12-12 1998-04-09 AEG Hausgeräte GmbH, 90429 Nürnberg Kühl- und/oder Gefriergerät
DE29815730U1 (de) * 1998-09-01 1998-11-05 Pauli + Sohn GmbH, 51545 Waldbröl Schnappschloß für Türen, insbesondere für Zimmer- und Möbeltüren

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1914542A (en) * 1931-12-04 1933-06-20 American Hardware Corp Door stop and holder
US2108326A (en) * 1936-11-11 1938-02-15 George R Adams Door latch
DE3124457A1 (de) 1981-06-22 1982-12-30 Gronbach, Wilhelm, 8090 Wasserburg Schliessvorrichtung fuer tueren, vorzugsweise kuehlschranktueren
DE3218838A1 (de) 1982-05-19 1983-11-24 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Einrichtung zum selbsttaetigen schliessen von tueren bei kleinerem oeffnungswinkel, insb. kuehl- oder gefrierschranktueren
EP1524483A1 (fr) 2003-10-14 2005-04-20 Liebherr-Hausgeräte Ochsenhausen GmbH Poignée de porte pour un réfrigérateur ou un congélateur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1022458B1 (nl) * 2014-10-01 2016-04-06 Deweer Sanitair Bvba Handgreep en een panelensamenstel voorzien van dergelijke handgreep

Also Published As

Publication number Publication date
ES2331291B1 (es) 2010-09-29
ES2331291A1 (es) 2009-12-28
EP2138657A3 (fr) 2014-01-01
RU2009121151A (ru) 2010-12-10

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