EP2291105B1 - Household appliance with device for door weight compensation - Google Patents

Household appliance with device for door weight compensation Download PDF

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Publication number
EP2291105B1
EP2291105B1 EP09765766.2A EP09765766A EP2291105B1 EP 2291105 B1 EP2291105 B1 EP 2291105B1 EP 09765766 A EP09765766 A EP 09765766A EP 2291105 B1 EP2291105 B1 EP 2291105B1
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EP
European Patent Office
Prior art keywords
hinge
front door
household appliance
rotation
return spring
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.)
Active
Application number
EP09765766.2A
Other languages
German (de)
French (fr)
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EP2291105A1 (en
Inventor
Övünc SIMSEK
Mutlu Yucel Aybas
Sebahattin Bambal
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
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Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL09765766T priority Critical patent/PL2291105T3/en
Publication of EP2291105A1 publication Critical patent/EP2291105A1/en
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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
    • E05D11/06—Devices for limiting the opening movement of hinges
    • 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
    • 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
    • E05Y2201/224—Stops
    • 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

Definitions

  • the present invention relates to a domestic appliance with a balancing device, wherein a return spring is mounted on the balancing device and the said return spring is mounted with a connecting element to the hinge of the front door to compensate for the weight of the front door mounted on a horizontal axis of the frame.
  • the front door of the inner chamber of a frame in the dishwasher is opened in the horizontal rotation angle towards the ground by means of a handle attached to the upper part of the front door by pulling, the door being fixed to the floor area with mutually attached hinges. Due to the weight of the front door creates a moment in the opening direction of the hinges, which leads without countermeasures to unwanted door opening and consequently door damage.
  • the stated problem is solved by means of a device for door weight balance.
  • the device includes a return spring which is connected to the frame from one side to the frame and from the other side by means of a hinge in the opposite direction of the opening, a train is connected to the front door.
  • the connection between the return spring and the hinge via an intermediate connecting element, which contains a respective connecting shaft relative to the return spring and the hinges, so that the ends of the return spring and hinge can be protected and at the same time easily disassembled.
  • connection extension in the form of hooks is provided on the shafts positioned parallel to each other. These each form a connection bearing for the opposite hinges and the return spring, wherein the waves have cylinder-like joints.
  • the return spring pulls the front door by means of a hinge in the opposite direction to the door opening, whereby the force of the spring constant produces the effect of the counter-torque.
  • This force increases by the voltage range of the return spring at each opening angle of the front door in a linear relationship. Due to the momentary effect caused by the weight of the door, the door has a progressive character as soon as the opening angle of the door increases and thereby approaches the x-axis. This ensures that, with the moment balanced by the spring constant, the door is compensated and locked only up to the predetermined opening angle by its weight (see moment diagram in Fig.
  • the US 2,425,365 describes a domestic appliance with a frame and a chamber, wherein the chamber is closable by a front door.
  • the front door is rotatably connected to the frame via a hinge part.
  • an intermediate connection element is further arranged, which is further connected to a return spring.
  • the opening of the front door has a rotation of the hinge part, and thus an increase in the tension of the return spring result.
  • WO 2007/088141 A1 is another household appliance with a closable by a front door chamber known.
  • the front door is attached to a hinge part, within which a return spring and a mechanism for tensioning the return spring when opening the front door are provided.
  • a similarly constructed household appliance is in the EP 1 055 882 A2 described.
  • the domestic appliance has a chamber and a front door for closing the chamber, wherein the front door is attached to a hinge part.
  • a return spring and means for tensioning the spring are arranged when opening the front door.
  • Purpose of the present invention is the compensation of the opening of the front door of a household appliance in a horizontal axis by means of a compensating progressive moment, which is caused by the weight of the door.
  • Another purpose of this invention is to provide a progressive balancing torque without modifying a parameter from the return spring by means of an interconnecting member.
  • the novelty is to provide a domestic appliance comprising a frame with a chamber, a hinge for resting on the frame of the front door closing and opening horizontally and a return spring for balancing the front door weight, a spring connection for transmitting movement between the said hinge and the return spring, an intermediate connection element with a spring connection and a hinge joint.
  • the rotation surface which in the stated manner of opening the front door up to a predetermined free rotation angle in the direction of rotation of the door allows rotation of the hinge joint during opening, characterized by a stopper, which, as soon as the said hinge exceeds the free rotation angle, the hinge joint closes ,
  • the cited stopper is shown in the form of an extension of the rotational surface of the hinge joint, whereby a rotational and locking function can be ensured on the joint member.
  • the invention is characterized by a lever carrying at one end the hinge joint and at the other end the spring connection.
  • the lever is a distance granted by the locking of the joint element, the moment will increase the spring distance.
  • the rotating surface is basically a circular spring, whereby the joint element allows a rotation after the free rotation angle.
  • a lever arm is characterized extending to the frame via a hinge and with which the return spring is connected to increase the pulling distance of the return spring during the door opening.
  • the lever arm increases the tension of the spring by moving the front door in the direction of the door opening.
  • the invention is characterized at least with a bearing on which the hinge element of the hinge is mounted, whereby the hinge element can be easily attached to the hinge.
  • a joint surface is shown on the bearing, which carries the surface of revolution.
  • At least one locking surface is attached to the bearing to block the extension form.
  • a cylinder-type joint is deformed which deforms the spring connection, whereby the spring is e.g. reached at the tip of the hook without rotation a free rotation.
  • the hinge joint is generally shown in bolt form, whereby the hinge joint includes a hinge surface and a locking surface with a lateral edge.
  • FIG 1a a dishwasher is shown, at the bottom of which there is a frame (10) with a chamber (14) and with a hinge (20) in the direction x-axis (40) a hinged door (30) to be opened is mounted.
  • the operator-pulled front door (30) which is fastened by means of a hinge (20), rotates and opens in the direction of the x-axis (40).
  • FIG 2 the dishwasher without a side wall is shown to illustrate the mechanism of the counterbalancing device of the front door (30), wherein the front door (30) can be seen in the closed state.
  • the front door (30) is fastened to the short side of the L-shaped hinge (20) from below by means of door connecting elements (22) similar to rivets.
  • the long arm of the hinge (20) has a lever arm (24) and extends horizontally in the direction of the frame (10).
  • the short side of the hinge hits the lever arm (24) in the corner.
  • a door bearing (26) to which a x-axis (40) performing shaft is attached.
  • the hinge (20) carrying the front door (30) is seated in the frame (10).
  • a bearing (242) is arranged in a U-shape, wherein in the bearing (242), an intermediate connection element (50) is positioned.
  • a return spring (60) with an end hinged hook (62) is mounted to the intermediate connector (50) and a frame hook (64) is attached to the rear bottom frame (10).
  • a spiral body which extends over a sliding to the frame (10) inclined sliding spring (12) from below towards the front door (30).
  • Figure 3a shows the intermediate connector (50) in the closed position (0 °) of the front door (30).
  • the lever arm (24) extends in the direction of the frame (10). Due to the weight of the return spring (60) and the inclination of the frame (10) in the free spring length (L1), the intermediate connecting element (50) in a cylindrical joint structure at the lower tip to the spring connection (54) in the direction of frame (10) hung.
  • the hinge joint (52), which connects in the form of a cam structure to the intermediate connection element (50), rests on the locking surface (244) and is at the same time set in park position, this locking surface of the bearing (242) being located near the edge of the lever arm (24). 24) is arranged.
  • Figure 3b shows the intermediate connector (50) at fully open position (90 0 ) of the front door (30).
  • the lever arm (24) looks up, and during the rotation in the direction of the x-axis (40), a spring is shown in the opening direction of the front door (30). Due to the return spring (60), the intermediate connection element (50) is influenced by the force of the spring connection (54) and rests with the hinge joint (52) on the locking surface (244).
  • Figure 4a shows the locking surface (244) with closed front door (30) in more detail.
  • Figure 4b shows the opened front door (30). In this open position one sees the lever (56), which encloses the hinge joints and the spring (52, 54) of the intermediate connection element (50) from both sides and forms a certain distance between these hinge elements.
  • Figure 5a shows the intermediate connection element (50) on the longitudinal plane in cross section.
  • the lever (56) is shown in a rectangular plate shape with two rounded ends and on the right side with a spring connection (54) in the form of a circular shaft.
  • the spring connection (54) is circular and made of plastic with a small coefficient of friction. These characteristics allow the articulated hook (62) to rotate easily over the spring connection.
  • On the left side of the lever (56) is the hinge joint (52), wherein on the side of the hinge joint (52) with the spring connection (54) in the parallel axis to the spring connection (54) a rotating surface (526) is arranged as a circular spring
  • Figure 5a shows the fully opened front door (30) and the position of the bearing (242) with broken lines.
  • the rotation surface (526) forms a missing spring, and during the opening and closing of the front door (30) is at a joint surface (248) which forms the bottom of the U-shaped bearing (242) , performed a limited rotational movement.
  • the rotational movement is restricted by a parking stopper (524) which, with the front door (30) closed, forms the edge of the rotating surface (526) which is simultaneously positioned in the direction of the parking surface (246).
  • a parking stopper (524) which, with the front door (30) closed, forms the edge of the rotating surface (526) which is simultaneously positioned in the direction of the parking surface (246).
  • the rotary movement is a locking stop (522) which forms the edge of the rotating surface in the direction of the locking surface (244) and a free axis of rotation ( ⁇ ) with the parking stop (524).
  • Parkstopper and locking stop (524.522) are shown circular at the junction to fix the sharpness.
  • Figure 5b shows an opened front door (30) with a maximum of 30 ° defined free rotation angle and the corresponding position of the weight compensation device.
  • the hinge (20) integrated with the front door (30) also rotates.
  • the intermediate connector (50) has two degrees of freedom.
  • the intermediate connecting element (50) moves in rotation.
  • the return spring (60) fastened to the frame hook (64) is tensioned by the hook of the joint element (62) and the spring connection (54) is pulled by means of force at the level of the tension produced by the delay line and its own weight.
  • the lever of the intermediate connecting element (56) extends in the direction of the return spring (60).
  • the rotating surface (526) moves over the articulation surface (248), whereby the to the parking area ( 526) from its position, the front door (30) remaining closed. If the free axis of rotation is reached ( ⁇ ), the locking stop (522) is supported on the locking surface (244).
  • the front door (30) is provided with a mechanism Figure 5c represented, wherein the free rotation angle ( ⁇ ) 30 0 is exceeded.
  • This position shows up to a locking angle ( ⁇ ), for example 70 0 turned front door (30) relative to the frame (10).
  • a locking angle ( ⁇ ) for example 70 0 turned front door (30) relative to the frame (10).
  • the locking stop (522) of the intermediate connection element (50) see Fig. 5a ) on the locking surface (244).
  • the hinge joint (52) will close in the rotation axis (528) against the clockwise rotation, whereby the door bearing (242) of the front door (30) to transmit the rotational movement to the lever (56) without bearing on the joint surface (248) , Subsequently, the front door (30), lever arm (24) and intermediate connecting element (50) rotate like a single component on the door bearing (26) in a horizontal axis (40).
  • the return spring (60) rotates during the rotational movement within the spring connection (54) with the cylinder-like joint element and simultaneously stretches further.

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  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Description

Die vorliegende Erfindung betrifft ein Hausgerät mit einer Ausgleichsvorrichtung, wobei an der Ausgleichsvorrichtung eine Rückholfeder angebracht ist und die angeführte Rückholfeder mit einem Verbindungselement an das Scharnier der Vordertür montiert ist, um das Gewicht der an einer waagerechten Achse des Rahmens angebrachten Vordertür auszugleichen.The present invention relates to a domestic appliance with a balancing device, wherein a return spring is mounted on the balancing device and the said return spring is mounted with a connecting element to the hinge of the front door to compensate for the weight of the front door mounted on a horizontal axis of the frame.

Die Vordertür der Innenkammer eines Rahmens im Geschirrspülgerät wird im waagerechten Drehwinkel in Richtung Boden mit Hilfe eines am oberen Bereich der Vordertür angebrachten Griffs durch Ziehen geöffnet, wobei die Tür am Bodenbereich mit gegenseitig befestigten Scharnieren befestigt wird. Durch das Gewicht der Vordertür entsteht in Öffnungsrichtung an den Scharnieren ein Moment, das ohne Gegenmaßnahmen zur ungewollten Türöffnung und infolgedessen zu Türschäden führt.The front door of the inner chamber of a frame in the dishwasher is opened in the horizontal rotation angle towards the ground by means of a handle attached to the upper part of the front door by pulling, the door being fixed to the floor area with mutually attached hinges. Due to the weight of the front door creates a moment in the opening direction of the hinges, which leads without countermeasures to unwanted door opening and consequently door damage.

Das angeführte Problem wird mittels einer Vorrichtung zum Türgewichtsausgleich gelöst. Die Vorrichtung beinhaltet eine Rückholfeder, die von einer Seite mit dem Rahmen und von der anderen Seite mittels eines Scharniers in Gegenrichtung der Öffnung einen Zug ausführend mit der Vordertür verbunden ist. Die Verbindung zwischen Rückholfeder und Scharnier erfolgt über ein Zwischenverbindungselement, das gegenüber der Rückholfeder und den Scharnieren je eine Verbindungswelle enthält, damit die Enden von Rückholfeder und Scharnier geschützt und zugleich auf einfache Weise demontiert werden können.The stated problem is solved by means of a device for door weight balance. The device includes a return spring which is connected to the frame from one side to the frame and from the other side by means of a hinge in the opposite direction of the opening, a train is connected to the front door. The connection between the return spring and the hinge via an intermediate connecting element, which contains a respective connecting shaft relative to the return spring and the hinges, so that the ends of the return spring and hinge can be protected and at the same time easily disassembled.

An beiden Enden des Zwischenverbindungselements ist an den zueinander parallel positionierten Wellen je eine Verbindungsverlängerung in Form von Haken bereitgestellt. Diese bilden je ein Verbindungslager für die gegenüberliegenden Scharniere und die Rückholfeder, wobei die Wellen zylinderartige Gelenke aufweisen.At each end of the intermediate connection element, a connection extension in the form of hooks is provided on the shafts positioned parallel to each other. These each form a connection bearing for the opposite hinges and the return spring, wherein the waves have cylinder-like joints.

Um das durch das Türgewicht gebildete Moment zu kompensieren, wird von der Rückholfeder die Vordertür mittels Scharnier in Gegenrichtung zur Türöffnung gezogen, wobei durch die Kraft der Federkonstante der Effekt des Gegenmoments erzeugt wird. Diese Kraft vergrößert sich durch die Spannungsstrecke der Rückholfeder bei jedem Öffnungswinkel der Vordertür im linearen Verhältnis. Die Tür weist durch den bedingt durch das Türgewicht entstehenden Momenteffekt einen progressiven Charakter auf, sobald sich der Öffnungswinkel der Tür vergrößert und sich dadurch der x-Achse annähert. Somit ist gewährleistet, dass mit dem durch die Federkonstante ausgeglichenen Moment die Tür nur bis zum vorgegebenen Öffnungswinkel durch ihr Gewicht ausgeglichen wird und arretiert (siehe Moment-Diagramm in Abb. 1 b). Das sich vergrößernde Moment der Vordertür übersteigt das Ausgleichsmoment des Gewichts, welches aufgrund der Federkonstante durch die Zugkraft entsteht, und verhindert dadurch, dass die Tür an einem erwünschten Punkt arretiert. Größere Öffnungswinkel, an denen die Tür arretiert, werden durch die Vergrößerung der Federkonstante der Rückholfeder erzielt. Für den Bediener jedoch wird es dadurch schwieriger, die geschlossene Tür zu öffnen.In order to compensate for the moment formed by the weight of the door, the return spring pulls the front door by means of a hinge in the opposite direction to the door opening, whereby the force of the spring constant produces the effect of the counter-torque. This force increases by the voltage range of the return spring at each opening angle of the front door in a linear relationship. Due to the momentary effect caused by the weight of the door, the door has a progressive character as soon as the opening angle of the door increases and thereby approaches the x-axis. This ensures that, with the moment balanced by the spring constant, the door is compensated and locked only up to the predetermined opening angle by its weight (see moment diagram in Fig. 1 b) , The increasing moment of the front door exceeds the balancing moment of the weight, which arises due to the spring constant due to the tensile force, thereby preventing the door from locking at a desired point. Larger opening angles at which the door locks are achieved by increasing the spring constant of the return spring. For the operator, however, this makes it more difficult to open the closed door.

Die US 2,425,365 beschreibt ein Hausgerät mit einem Rahmen und einer Kammer, wobei die Kammer durch eine Vordertür verschließbar ist. Die Vordertür ist über ein Scharnierteil drehbar mit dem Rahmen verbunden. An dem Scharnierteil ist ferner ein Zwischenverbindungselement angeordnet, welches weiter mit einer Rückholfeder verbunden ist. Das Öffnen der Vordertür hat eine Drehung des Scharnierteils, und damit ein Erhöhen der Spannung der Rückholfeder zur Folge.The US 2,425,365 describes a domestic appliance with a frame and a chamber, wherein the chamber is closable by a front door. The front door is rotatably connected to the frame via a hinge part. On the hinge part, an intermediate connection element is further arranged, which is further connected to a return spring. The opening of the front door has a rotation of the hinge part, and thus an increase in the tension of the return spring result.

Weitere Hausgeräte mit einem ähnlichen Aufbau sind aus US 3,921,252 und DE 87 09 496 U1 bekannt. Auch hierbei ist eine zum Verschließen einer Kammer vorgesehene Vordertür an einem Scharnierteil befestigt, wobei an dem Scharnierteil ein Zwischenverbindungselement angeordnet ist, welches weiter mit einer Rückholfeder verbunden ist.Other home appliances with a similar structure are made US 3,921,252 and DE 87 09 496 U1 known. Here too, a front door provided for closing a chamber is fastened to a hinge part, wherein an intermediate connecting element, which is further connected to a return spring, is arranged on the hinge part.

Aus der WO 2007/088141 A1 ist ein weiteres Hausgerät mit einer durch eine Vordertür verschließbaren Kammer bekannt. Die Vordertür ist an einem Scharnierteil befestigt, innerhalb dessen eine Rückholfeder und ein Mechanismus zum Spannen der Rückholfeder beim Öffnen der Vordertür vorgesehen sind.From the WO 2007/088141 A1 is another household appliance with a closable by a front door chamber known. The front door is attached to a hinge part, within which a return spring and a mechanism for tensioning the return spring when opening the front door are provided.

Ein ähnlich aufgebautes Hausgerät ist in der EP 1 055 882 A2 beschrieben. Das Hausgerät weist eine Kammer und eine Vordertür zum Verschließen der Kammer auf, wobei die Vordertür an einem Scharnierteil befestigt ist. Innerhalb des Scharnierteils sind eine Rückholfeder und Mittel zum Spannen der Feder beim Öffnen der Vordertür angeordnet.A similarly constructed household appliance is in the EP 1 055 882 A2 described. The domestic appliance has a chamber and a front door for closing the chamber, wherein the front door is attached to a hinge part. Within the hinge part, a return spring and means for tensioning the spring are arranged when opening the front door.

Zweck der vorliegenden Erfindung ist die Kompensierung des bei der Öffnung der Vordertür eines Hausgeräts in einer waagerechten Achse anhand einer Ausgleichsvorrichtung progressiven Moments, welches durch das Türgewicht entsteht.Purpose of the present invention is the compensation of the opening of the front door of a household appliance in a horizontal axis by means of a compensating progressive moment, which is caused by the weight of the door.

Ein weiterer Zweck dieser Erfindung ist die Gewährleistung eines progressiven Ausgleichsmoments ohne Modifizierung eines Parameters von der Rückholfeder mit Hilfe eines Zwischenverbindungselements.Another purpose of this invention is to provide a progressive balancing torque without modifying a parameter from the return spring by means of an interconnecting member.

Um die oben angeführten Ziele der vorliegenden Erfindung zu erreichen, wird durch die Neuheit ein Hausgerät erbracht, welches einen Rahmen mit Kammer, ein Scharnier zum Aufliegen auf dem Rahmen der die Kammer im waagerechten Drehwinkel schließenden und öffnenden Vordertür und eine Rückholfeder zum Ausgleich des Vordertürgewichts, eine Federverbindung zur Bewegungsübertragung zwischen dem angeführten Scharnier und der Rückholfeder, ein Zwischenverbindungselement mit einer Federverbindung und einem Scharniergelenk aufweist.In order to achieve the above-mentioned objects of the present invention, the novelty is to provide a domestic appliance comprising a frame with a chamber, a hinge for resting on the frame of the front door closing and opening horizontally and a return spring for balancing the front door weight, a spring connection for transmitting movement between the said hinge and the return spring, an intermediate connection element with a spring connection and a hinge joint.

Erfindungsgemäß ist die Drehfläche, die bei der angeführten Öffnungsweise der Vordertür bis zu einem vorgegebenen freien Drehwinkel in Drehrichtung der Tür ein Drehen des Scharniergelenks während des Öffnens gewährt, mit einem Stopper charakterisiert, der, sobald das angeführte Scharnier den freien Drehwinkel überschreitet, das Scharniergelenk schließt.According to the invention, the rotation surface, which in the stated manner of opening the front door up to a predetermined free rotation angle in the direction of rotation of the door allows rotation of the hinge joint during opening, characterized by a stopper, which, as soon as the said hinge exceeds the free rotation angle, the hinge joint closes ,

Bei manchen Ausführungen dieser Erfindung ist der angeführte Stopper in Form einer Verlängerung der Drehfläche des Scharniergelenks dargestellt, wodurch am Gelenkelement eine Dreh- und Verriegelungsfunktion gewährleistet werden kann.In some embodiments of this invention, the cited stopper is shown in the form of an extension of the rotational surface of the hinge joint, whereby a rotational and locking function can be ensured on the joint member.

Bei manchen Ausführungen ist die Erfindung mit einem Hebel charakterisiert, der an einem Ende das Scharniergelenk und an dem anderen Ende die Federverbindung trägt. Durch den Hebel wird ein Abstand gewährt und durch die Verriegelung des Gelenkelements wird das Moment die Federstrecke vergrößern.In some embodiments, the invention is characterized by a lever carrying at one end the hinge joint and at the other end the spring connection. The lever is a distance granted by the locking of the joint element, the moment will increase the spring distance.

Bei manchen Ausführungen der Erfindung ist die Drehfläche grundsätzlich eine Kreisfeder, wodurch das Gelenkelement nach dem freien Drehwinkel eine Drehung zulässt.In some embodiments of the invention, the rotating surface is basically a circular spring, whereby the joint element allows a rotation after the free rotation angle.

Bei manchen Ausführungen der Erfindung ist ein Hebelarm charakterisiert, der sich zum Rahmen hin über ein Scharnier erstreckt und mit dem die Rückholfeder verbunden ist, um die Zugstrecke der Rückholfeder während der Türöffnung zu vergrößern. Der Hebelarm vergrößert die Zugstrecke der Feder durch die Bewegung der Vordertür in Richtung Türöffnung.In some embodiments of the invention, a lever arm is characterized extending to the frame via a hinge and with which the return spring is connected to increase the pulling distance of the return spring during the door opening. The lever arm increases the tension of the spring by moving the front door in the direction of the door opening.

Bei manchen Ausführungen ist die Erfindung mindestens mit einem Lager charakterisiert, an dem das Gelenkelement des Scharniers montiert ist, wodurch das Gelenkelement einfach an das Scharnier angebracht werden kann.In some embodiments, the invention is characterized at least with a bearing on which the hinge element of the hinge is mounted, whereby the hinge element can be easily attached to the hinge.

Bei manchen Ausführungen der Erfindung ist am Lager eine Gelenkfläche dargestellt, die die Drehfläche trägt.In some embodiments of the invention, a joint surface is shown on the bearing, which carries the surface of revolution.

Bei manchen Ausführungen der Erfindung ist an dem Lager mindestens eine Verriegelungsfläche angebracht, um die Verlängerungsform zu blockieren.In some embodiments of the invention, at least one locking surface is attached to the bearing to block the extension form.

Bei manchen Ausführungen der Erfindung ist ein zylinderartiges Gelenk charakterisiert, das die Federverbindung verformt, wodurch die Feder z.B. an der Hakenspitze ohne Verdrehung eine freie Drehmöglichkeit erreicht.In some embodiments of the invention, a cylinder-type joint is deformed which deforms the spring connection, whereby the spring is e.g. reached at the tip of the hook without rotation a free rotation.

Bei manchen Ausführungen der Erfindung ist das Scharniergelenk grundsätzlich in Bolzenform dargestellt, wodurch das Scharniergelenk eine Gelenkfläche und eine Verriegelungsfläche mit einem seitlichen Rand enthält.In some embodiments of the invention, the hinge joint is generally shown in bolt form, whereby the hinge joint includes a hinge surface and a locking surface with a lateral edge.

Die weiteren Eigenschaften und Vorteile der vorliegenden Erfindung werden für die betreffenden Fachtechniker durch detaillierte Erläuterungen und Zeichnungen in den nachfolgenden Abschnitten verständlich gemacht.The other characteristics and advantages of the present invention will be understood by those skilled in the art through detailed explanations and drawings in the following paragraphs.

Die Einzelheiten und einige Vorteile der vorliegenden Erfindung werden durch die Erläuterungen und Zeichnungen ausführlich geschildert. Die Zeichnungen dienen dazu, die vorliegende Erfindung ohne irgendeine Einschränkung mittels Beispielen zu erklären.

  • Abbildung 1a zeigt die Perspektivansicht eines Hausgeräts mit einem angebrachten Zwischenverbindungselement.
  • Abbildung 1b zeigt nach dem Stand der Technik der angewendeten Methode das Moment-Winkel-Diagramm.
  • Abbildung 2 zeigt die Vorrichtung zur Türöffnung und zum Gewichtsausgleich ohne Seitenwand in der Abbildung 1 unten.
  • Abbildung 3a zeigt die vorliegende Erfindung mit angebrachtem Zwischenverbindungselement, wobei das Rückholfeder- und Scharnierverhältnis von vorne dargestellt wird. Die Tür ist hierbei geschlossen.
  • Abbildung 3b zeigt den Stand des Zwischenverbindungselements von Abbildung 3a von vorne bei geöffneter Tür.
  • Abbildung 4a zeigt das in Abbildung 3a dargestellte Zwischenelement ohne Feder in Perspektivansicht.
  • Abbildung 4b zeigt das in Abbildung 3b dargestellte Zwischenverbindungselement ohne Feder in Perspektivansicht.
  • Abbildung 5a zeigt das Zwischenverbindungselement von vorne im Querschnitt.
  • Abbildung 5b zeigt das Schema der Vorrichtung zum Türgewichtsausgleich mit der Tür im freien Drehwinkel und die Position des Zwischenverbindungselements.
  • Abbildung 5c zeigt den im Abbildung 5b dargestellten Mechanismus mit der vorderen Tür im Verriegelungswinkel.
The details and some advantages of the present invention will be described in detail by the explanations and drawings. The drawings serve to explain the present invention by way of example without any limitation.
  • Figure 1a shows the perspective view of a household appliance with an attached intermediate connector.
  • Figure 1b shows the state of the art of the method used the moment-angle diagram.
  • Figure 2 shows the device for door opening and counterbalance without side wall in the illustration 1 below.
  • Figure 3a shows the present invention with attached intermediate connection element, wherein the Rückholfeder- and hinge ratio is shown from the front. The door is closed here.
  • Figure 3b shows the state of the interconnecting element of Figure 3a from the front with the door open.
  • Figure 4a shows that in Figure 3a illustrated intermediate element without spring in perspective view.
  • Figure 4b shows that in Figure 3b illustrated intermediate connection element without spring in perspective view.
  • Figure 5a shows the interconnecting element from the front in cross section.
  • Figure 5b shows the scheme of the device for door weight balance with the door in the free rotation angle and the position of the intermediate connection element.
  • Figure 5c shows the im Figure 5b illustrated mechanism with the front door in the locking angle.

Bevor die Strukturierungen der vorliegenden Erfindung ausführlich erläutert werden, ist hervorzuheben, dass die vorliegende Erfindung sich nicht mit der Ausführung von Komponenten-Arrangements und Konstruktionsdetails gemäß Beschreibungen und Definitionen in den nachfolgenden Abschnitten beschränkt. 10 Rahmen 50 Zwischenverbindungselement 12 Gleitfeder 52 Scharniergelenk 14 Kammer 522 Verriegelungsanschlag 20 Scharnier 524 Parkstopper 22 Türverbindungselement 526 Drehfläche 24 Hebelarm 528 Drehwinkel 242 Lager 54 Federverbindung 244 Verriegelungsfläche 56 Hebel 246 Standfläche 60 Rückholfeder 248 Gelenkfläche 62 Gelenkhaken 26 Türlager 64 Rahmenhaken 30 Vordertür L1 Freie Federlänge 40 x-Achse L2 Freier Hebelarm α Freier Drehwinkel r1 Federstrecke mit Verriegelung β Verriegelungswinkel r2 Hebelarm mit Verriegelung Before the structures of the present invention are explained in detail, it should be understood that the present invention is not limited to the implementation of component arrangements and design details as described and defined in the following paragraphs. 10 frame 50 Interconnect member 12 sliding spring 52 hinge 14 chamber 522 lock Catch 20 hinge 524 Park stopper 22 Door connecting element 526 surface of revolution 24 lever arm 528 angle of rotation 242 camp 54 groove connection 244 locking surface 56 lever 246 footprint 60 return spring 248 articular surface 62 pivot hook 26 door bearing 64 frame hooks 30 In front of the door L1 Free spring length 40 X axis L2 Free lever arm α Free rotation angle r1 Spring track with lock β locking angle r2 Lever arm with lock

In Abbildung 1a ist ein Geschirrspülgerät dargestellt, an dessen Boden sich ein Rahmen (10) mit einer Kammer (14) befindet und mit einem Scharnier (20) in Richtung x-Achse (40) eine gelenkige zu öffnende Tür (30) angebracht ist. Die vom Bediener gezogene Vordertür (30), welche mittels Scharnier (20) befestigt ist, dreht und öffnet sich in Richtung x-Achse (40).In Figure 1a a dishwasher is shown, at the bottom of which there is a frame (10) with a chamber (14) and with a hinge (20) in the direction x-axis (40) a hinged door (30) to be opened is mounted. The operator-pulled front door (30), which is fastened by means of a hinge (20), rotates and opens in the direction of the x-axis (40).

In Abbildung 2 ist das Geschirrspülgerät ohne Seitenwand abgebildet, um den Mechanismus der Gewichtsausgleichsvorrichtung der Vordertür (30) darstellen zu können, wobei die Vordertür (30) im geschlossenen Zustand zu sehen ist. Die Vordertür (30) ist von unten mittels Türverbindungselementen (22) ähnlich Nieten an der kurzen Seite des L-förmigen Scharniers (20) befestigt. Der lange Arm des Scharniers (20) weist einen Hebelarm (24) auf und erstreckt sich waagerecht in Richtung Rahmen (10). Die kurze Seite des Scharniers trifft in der Ecke auf den Hebelarm (24). An dieser Stelle befindet sich am Boden in umgekehrter U-Form ein Türlager (26), an das eine die x-Achse (40) darstellende Welle angebracht ist. Dadurch sitzt das die Vordertür (30) tragende Scharnier (20) im Rahmen (10). An das Ende des Hebelarms (24) ist ein Lager (242) in U-Form angeordnet, wobei in das Lager (242) ein Zwischenverbindungselement (50) positioniert ist. Um das Gewicht der Vordertür (30) auszugleichen, wird eine Rückholfeder (60) mit einem an den Enden angeordneten Gelenkhaken (62) an das Zwischenverbindungselement (50) und einem Rahmenhaken (64) an den Rahmen (10) der hinteren Bodenseite montiert. Zwischen den Gelenk- und Rahmenhaken (62, 64) der Rückholfeder (60) befindet sich ein Spiralkörper, der sich über eine zum Rahmen (10) geneigte Gleitfeder (12) von unten in Richtung Vordertür (30) erstreckt.In Figure 2 the dishwasher without a side wall is shown to illustrate the mechanism of the counterbalancing device of the front door (30), wherein the front door (30) can be seen in the closed state. The front door (30) is fastened to the short side of the L-shaped hinge (20) from below by means of door connecting elements (22) similar to rivets. The long arm of the hinge (20) has a lever arm (24) and extends horizontally in the direction of the frame (10). The short side of the hinge hits the lever arm (24) in the corner. At this point, located at the bottom in reverse U-shape, a door bearing (26) to which a x-axis (40) performing shaft is attached. As a result, the hinge (20) carrying the front door (30) is seated in the frame (10). At the end of the lever arm (24) a bearing (242) is arranged in a U-shape, wherein in the bearing (242), an intermediate connection element (50) is positioned. To balance the weight of the front door (30), a return spring (60) with an end hinged hook (62) is mounted to the intermediate connector (50) and a frame hook (64) is attached to the rear bottom frame (10). Between the hinge and frame hooks (62, 64) of the return spring (60) is a spiral body, which extends over a sliding to the frame (10) inclined sliding spring (12) from below towards the front door (30).

Abbildung 3a zeigt das Zwischenverbindungselement (50) bei geschlossener Position (0°) der Vordertür (30). Bei geschlossener Vordertür (30) erstreckt sich der Hebelarm (24) in Richtung Rahmen (10). Durch das Eigengewicht der Rückholfeder (60) und der Neigung zum Rahmen (10) in freier Federlänge (L1) wird das Zwischenverbindungselement (50) in zylinderförmiger Gelenkstruktur an der unteren Spitze an die Federverbindung (54) in Richtung Rahmen (10) gehängt.
Das Scharniergelenk (52), das sich in Form von einer Nockenstruktur an das Zwischenverbindungselement (50) verbindet, stützt sich auf die Verriegelungsfläche (244) und wird zugleich in Parkposition gestellt, wobei diese Verriegelungsfläche des Lagers (242) nahe der Kante des Hebelarms (24) angeordnet ist. Figure 3a shows the intermediate connector (50) in the closed position (0 °) of the front door (30). When the front door (30) is closed, the lever arm (24) extends in the direction of the frame (10). Due to the weight of the return spring (60) and the inclination of the frame (10) in the free spring length (L1), the intermediate connecting element (50) in a cylindrical joint structure at the lower tip to the spring connection (54) in the direction of frame (10) hung.
The hinge joint (52), which connects in the form of a cam structure to the intermediate connection element (50), rests on the locking surface (244) and is at the same time set in park position, this locking surface of the bearing (242) being located near the edge of the lever arm (24). 24) is arranged.

Abbildung 3b zeigt das Zwischenverbindungselement (50) bei vollständig geöffneter Position (900) der Vordertür (30). Bei geöffneter Vordertür (30) schaut der Hebelarm (24) nach oben, und während der Drehung in Richtung der x-Achse (40) wird in Öffnungsrichtung der Vordertür (30) eine Feder dargestellt. Aufgrund der Rückholfeder (60) wird das Zwischenverbindungselement (50) durch die Kraft der Federverbindung (54) beeinflusst und stützt sich mit dem Scharniergelenk (52) auf die Verriegelungsfläche (244). Figure 3b shows the intermediate connector (50) at fully open position (90 0 ) of the front door (30). When the front door (30) is open, the lever arm (24) looks up, and during the rotation in the direction of the x-axis (40), a spring is shown in the opening direction of the front door (30). Due to the return spring (60), the intermediate connection element (50) is influenced by the force of the spring connection (54) and rests with the hinge joint (52) on the locking surface (244).

Abbildung 4a zeigt die Verriegelungsfläche (244) bei geschlossener Vordertür (30) ausführlicher. Abbildung 4b zeigt die geöffnete Vordertür (30). In dieser geöffneten Position sieht man den Hebel (56), der die Scharniergelenke und die Feder (52, 54) des Zwischenverbindungselements (50) von beiden Seiten umschließt und zwischen diesen Gelenkelementen einen bestimmten Abstand bildet. Figure 4a shows the locking surface (244) with closed front door (30) in more detail. Figure 4b shows the opened front door (30). In this open position one sees the lever (56), which encloses the hinge joints and the spring (52, 54) of the intermediate connection element (50) from both sides and forms a certain distance between these hinge elements.

Abbildung 5a zeigt das Zwischenverbindungselement (50) auf Längsebene im Querschnitt. Der Hebel (56) ist aus einer rechteckigen Plattenform mit zwei abgerundeten Enden und an der rechten Seite mit einer Federverbindung (54) in Form einer kreisförmigen Welle dargestellt. Die Federverbindung (54) ist kreisförmig und aus Kunststoff mit einem kleinen Reibungskoeffizienten hergestellt. Durch diese Eigenschaften kann sich der Gelenkhaken (62) über der Federverbindung auf einfacher Weise drehen. An der linken Seite des Hebels (56) befindet sich das Scharniergelenk (52), wobei an der Seite des Scharniergelenks (52) mit der Federverbindung (54) in der Parallelachse zur Federverbindung (54) eine Drehfläche (526) als kreisförmige Feder angeordnet ist. Abbildung 5a zeigt die vollständig geöffnete Vordertür (30) und die Position des Lagers (242) mit unterbrochenen Linien. Bis zu einer freien Drehachse von 180° (α) formt die Drehfläche (526) eine fehlende Feder aus, und während der Öffnung und Schließung der Vordertür (30) wird an einer Gelenkfläche (248), die den Boden des U-förmigen Lagers (242) bildet, eine beschränkte Drehbewegung ausgeführt. Figure 5a shows the intermediate connection element (50) on the longitudinal plane in cross section. The lever (56) is shown in a rectangular plate shape with two rounded ends and on the right side with a spring connection (54) in the form of a circular shaft. The spring connection (54) is circular and made of plastic with a small coefficient of friction. These characteristics allow the articulated hook (62) to rotate easily over the spring connection. On the left side of the lever (56) is the hinge joint (52), wherein on the side of the hinge joint (52) with the spring connection (54) in the parallel axis to the spring connection (54) a rotating surface (526) is arranged as a circular spring , Figure 5a shows the fully opened front door (30) and the position of the bearing (242) with broken lines. Up to one free rotation axis of 180 ° (α), the rotation surface (526) forms a missing spring, and during the opening and closing of the front door (30) is at a joint surface (248) which forms the bottom of the U-shaped bearing (242) , performed a limited rotational movement.

Die Drehbewegung wird durch einen Parkstopper (524) eingeschränkt, der bei geschlossener Vordertür (30) den Rand der Drehfläche (526) bildet, die gleichzeitig in Richtung Parkfläche (246) positioniert ist. Wird die Vordertür (30) vollständig geöffnet, ist die Drehbewegung ein Verriegelungsanschlag (522), der in Richtung Verriegelungsfläche (244) den Rand der Drehfläche und mit dem Parkstopper (524) eine freie Drehachse (α) bildet. Beim Scharniergelenk (52) sind an der Verbindungsstelle Parkstopper und Verriegelungsanschlag (524,522) zur Behebung der Schärfe kreisförmig dargestellt.The rotational movement is restricted by a parking stopper (524) which, with the front door (30) closed, forms the edge of the rotating surface (526) which is simultaneously positioned in the direction of the parking surface (246). When the front door (30) is fully opened, the rotary movement is a locking stop (522) which forms the edge of the rotating surface in the direction of the locking surface (244) and a free axis of rotation (α) with the parking stop (524). In the hinge joint (52) Parkstopper and locking stop (524.522) are shown circular at the junction to fix the sharpness.

Bei Spannung der Rückholfeder (60) während der Öffnung der Vordertür (30) wird bedingt durch die entstehende Zugkraft des Scharniergelenks (52) nur eine eingeschränkte Drehung ausgeführt. Aufgrund dieser Faktoren wird die Bewegung mit Einfluss auf die Gewichtausgleichsvorrichtung in Abbildung 5b und 5c mit Hilfe von Mechanismusschemen ausführlicher dargestellt.When tension of the return spring (60) during the opening of the front door (30) is due to the resulting tensile force of the hinge joint (52) carried out only a limited rotation. Due to these factors, the movement is influenced in the weight compensation device in Figures 5b and 5c illustrated in more detail by means of mechanism schemes.

Abbildung 5b zeigt eine geöffnete Vordertür (30) mit einem höchstens 30° definierten freien Drehwinkel und die dazugehörige Position der Gewichtsausgleichsvorrichtung. Bei einer Vordertürbewegung (30) zwischen 00- 300 dreht sich das an die Vordertür (30) integrierte Scharnier (20) ebenfalls. Während dieser Drehbewegung verfügt das Zwischenverbindungselement (50) über zwei Freiheitsgrade. In Verbindung zur Drehbewegung der Vordertür (30) zwischen 00-300 und zur Drehung des Scharniergelenks (52) und der Federverbindung (54) bewegt sich das Zwischenverbindungselement (50) drehend. Hierbei wird die an den Rahmenhaken (64) befestigte Rückholfeder (60) vom Haken des Gelenkelements (62) gespannt und die Federverbindung (54) wird mittels Kraft in Höhe der durch die Vorlaufstrecke sowie das Eigengewicht entstehenden Spannung gezogen. Durch die Drehfreiheit des Scharniergelenks (52) erstreckt sich der Hebel des Zwischenverbindungselements (56) in Richtung Rückholfeder (60). Bei einer Drehung des Scharniergelenks (52) durch die Bewegung des Hebelarms (24) über eine Drehachse (528) von 00 bis zu 300 bewegt sich die Drehfläche (526) über der Gelenkfläche (248), wodurch sich der an die Parkfläche (526) gestützte Parkstopper (524) von seiner Position trennt, wobei die Vordertür (30) geschlossen bleibt. Wird die freie Drehachse erreicht (α), stützt sich der Verriegelungsanschlag (522) auf die Verriegelungsfläche (244). Figure 5b shows an opened front door (30) with a maximum of 30 ° defined free rotation angle and the corresponding position of the weight compensation device. In a front door movement (30) between 0 0 - 30 0 , the hinge (20) integrated with the front door (30) also rotates. During this rotational movement, the intermediate connector (50) has two degrees of freedom. In connection with the rotational movement of the front door (30) between 0 0 -30 0 and the rotation of the hinge joint (52) and the spring connection (54), the intermediate connecting element (50) moves in rotation. In this case, the return spring (60) fastened to the frame hook (64) is tensioned by the hook of the joint element (62) and the spring connection (54) is pulled by means of force at the level of the tension produced by the delay line and its own weight. Due to the freedom of rotation of the hinge joint (52), the lever of the intermediate connecting element (56) extends in the direction of the return spring (60). Upon rotation of the hinge joint (52) by the movement of the lever arm (24) about an axis of rotation (528) from 0 0 to 30 0 , the rotating surface (526) moves over the articulation surface (248), whereby the to the parking area ( 526) from its position, the front door (30) remaining closed. If the free axis of rotation is reached (α), the locking stop (522) is supported on the locking surface (244).

Bis zur freien Drehachse (α) wird während der Drehbewegung der Vordertür (30) aufgrund des Gewichts der Vordertür (30) das entstehende Moment in der x-Achse (40) durch das aus der Kraft des Federkoeffizienten der Rückholfeder (60) entstehende Ausgleichsmoment kompensiert. Hält das Ausgleichsmoment bei geschlossener Vordertür (30) bis zu dem freien Drehwinkel (α) zwischen einem bestimmten Winkelwert, entspricht der auf Hebelarm (24) rechtwinklig wirkende Kraftkomponentenwert zwischen Zwischenverbindungselement (50) und Hebelarm (24) dem Wert, der sich aus der Multiplikation der Hebelarmlänge (24) und einer freien Federlänge (r1) der Rückholfeder (60) ergibt.Up to the free axis of rotation (α) the resulting moment in the x-axis (40) is compensated during the rotational movement of the front door (30) due to the weight of the front door (30) by the resulting from the force of the spring coefficient of the return spring (60) compensation torque , If the balancing torque with closed front door (30) up to the free rotation angle (α) between a certain angle value, corresponds to the lever arm (24) perpendicular force component between interconnecting element (50) and lever arm (24) corresponds to the value resulting from the multiplication the lever arm length (24) and a free spring length (r1) of the return spring (60) results.

Bei einem Ausführungsbeispiel der vorliegenden Erfindung ist die Vordertür (30) mit einem Mechanismus auf Abbildung 5c dargestellt, wobei der freie Drehwinkel (α) 300 überschritten ist. Diese Position zeigt eine bis zu einem Verriegelungswinkel (β) z.B. 700 gedrehte Vordertür (30) im Verhältnis zum Rahmen (10). Bei einer Bewegung der Vordertür (30) zwischen 300 - 900 oder über dem Verriegelungswinkel (β) stützt sich der Verriegelungsanschlag (522) des Zwischenverbindungselements (50) (siehe Abb. 5a) auf die Verriegelungsfläche (244). Deshalb wird sich das Scharniergelenk (52) in der Drehachse (528) gegen die Drehung im Uhrzeigersinn schließen, wodurch das Türlager (242) der Vordertür (30) die Drehbewegung ohne an der Gelenkfläche (248) zu tragen an den Hebel (56) weiterleiten. Anschließend drehen sich Vordertür (30), Hebelarm (24) und Zwischenverbindungselement (50) wie ein einziges Bauteil am Türlager (26) in waagerechter Achse (40). Die Rückholfeder (60) dreht sich während der Drehbewegung innerhalb der Federverbindung (54) mit dem zylinderartigen Gelenkelement und spannt sich zugleich weiter.In one embodiment of the present invention, the front door (30) is provided with a mechanism Figure 5c represented, wherein the free rotation angle (α) 30 0 is exceeded. This position shows up to a locking angle (β), for example 70 0 turned front door (30) relative to the frame (10). In a movement of the front door (30) between 30 0 - 90 0 or above the locking angle (β), the locking stop (522) of the intermediate connection element (50) (see Fig. 5a ) on the locking surface (244). Therefore, the hinge joint (52) will close in the rotation axis (528) against the clockwise rotation, whereby the door bearing (242) of the front door (30) to transmit the rotational movement to the lever (56) without bearing on the joint surface (248) , Subsequently, the front door (30), lever arm (24) and intermediate connecting element (50) rotate like a single component on the door bearing (26) in a horizontal axis (40). The return spring (60) rotates during the rotational movement within the spring connection (54) with the cylinder-like joint element and simultaneously stretches further.

Im Verriegelungswinkel (β) vergrößert sich der normale Winkel im Verhältnis zur Bodenebene des Vordertürgewichts (30) und führt dadurch zur progressiven Vergrößerung des Moments. Andererseits ist die Struktur des Mechanismus, der das Ausgleichsmoment bildet, durch die Vergrößerung der Strecke des Hebelarms (24) wegen der Fixierung des Zwischenverbindungshebels (50) länger als der entstehende freie Hebelarm (r1). Der Momenteffekt dieser Struktur entspricht dem Wert, der sich aus der Multiplikation von Federlänge mit Verschluss (L2) des Hebalarms mit Verschluss (r2) in der neuen Position der Rückholfeder (60) ergibt, die zwischen x-Achse (40) und Federverbindung (54) gemessen wird.In the locking angle (β), the normal angle increases in relation to the ground plane of the front door weight (30) and thereby leads to the progressive increase of the moment. On the other hand, by increasing the distance of the lever arm (24) due to the fixation of the intermediate link lever (50), the structure of the mechanism constituting the balance torque is longer than the resulting free lever arm (r1). The momentary effect of this structure corresponds to the value resulting from the multiplication of spring length with closure (L2) of the lifting alarm with closure (r2) in the new position of the return spring (60) which is between x-axis (40) and spring connection (54 ) is measured.

Bei Verschließen der Vordertür (30) ist für das Gewichtsausgleichsmoment der Hebelarm mit Verschluss (r2) im Verriegelungswinkel (β) und ab dem freien Drehwinkel (α) bis zur geschlossenen Position der freie Hebelarm (r1) bestimmend. Abbildung 5c zeigt das Entstehen des Kompensationseffekts auf das progressive Moment bedingt durch den freien Hebelarm und den Hebelarm mit Verschluss (r1, r2) sowie den Winkel der Rückholfeder (60). Bei Übergang des freien Drehwinkels (α) auf den Verriegelungswinkel (β) und 900-Annäherung des Winkels zwischen dem Hebelarm mit Verschluss (r2) und der Rückholfeder (60) erhöht sich die Kraftkomponente, die sich auf das Kompensationsmoment auswirkt. Dieser Fall wird auch durch die Parallellage des Rahmenhakens (64) zur x-Achse (40) unterstützt.When closing the front door (30), the lever arm with lock (r2) in the locking angle (β) and from the free rotation angle (α) to the closed position determines the free lever arm (r1) for the counterbalancing torque. Figure 5c shows that Resulting from the compensation effect on the progressive moment caused by the free lever arm and the lever arm with lock (r1, r2) and the angle of the return spring (60). Upon transition of the free rotation angle (α) to the locking angle (β) and 90 0 approach of the angle between the lever arm with closure (r2) and the return spring (60) increases the force component, which has an effect on the compensation torque. This case is also supported by the parallel position of the frame hook (64) to the x-axis (40).

Claims (10)

  1. Household appliance with a frame (10) and a compartment (14), wherein the compartment (14) is able to be closed off by a front door (30),
    wherein the front door (30) is connected pivotably to the frame (10) via a hinge part (20), in order to make it possible to open the front door (30),
    wherein, to compensate for the weight of the front door (30), a return spring (60) is provided,
    wherein an intermediate connection element (50) is disposed between the hinge part (20) and the return spring (60) to transmit the movement
    wherein a spring connection (54) is formed between the intermediate connection element (50) and the return spring (60) and a hinge joint (52) is formed between the intermediate connection element (50) and the hinge part (20),
    characterised in that the hinge joint (52) comprises a rotation surface (526) and a locking stop (522), in order to make possible,
    a rotational movement of the hinge part (20) in relation to the intermediate connection element (50) during a rotation of the hinge part (20) as a result of opening the front door (30) starting from a closed position of the front door (30) up to a predetermined angle of rotation (α),
    and a locking of the hinge joint (52) and as a result a rotation of the intermediate connection element (50) with the hinge part (20) during a rotation of the hinge part (20), as from a continuing opening of the front door (30) and exceeding of the predetermined angle of rotation (α) up to a completely opened position of the front door (30).
  2. Household appliance according to claim 1, characterised in that the locking stop (522) is embodied in the shape of an extension of the rotation surface (526).
  3. Household appliance according to one of the above claims, characterised in that the intermediate connection element (50) is embodied in the form of a lever (56), at one end of which the hinge joint (52) and at the other end of which the spring joint (54) is disposed.
  4. Household appliance according to one of the above claims, characterised in that the rotation surface (526) of the hinge joint (52) is embodied semicircular in shape.
  5. Household appliance according to one of the above claims, characterised in that the hinge part (20) has a lever arm (24) which extends through to the frame (10), wherein the lever arm (24) is linked to the return spring (60), so that when the hinge part (20) turns as the front door (30) is being opened, the distance that the return spring (60) stretches is increased.
  6. Household appliance according to one of the above claims, characterised in that the hinge joint (52) is formed by a support (242) provided on the hinge part (20) and by a hinge element provided on the intermediate connection element (50) and positioned in the support (242).
  7. Household appliance according to claim 6, characterised in that the support (242) of the hinge part (20) has a hinging surface (248) which bears the turning surface (526).
  8. Household appliance according to claim 6 or 7, characterised in that the support (242) of the hinge part (20) has a locking surface (244) and that the locking stop (522) is supported on the locking surface (244) when the hinge joint (52) is locked.
  9. Household appliance according to one of claims 6 to 8, characterised in that the hinge element provided on the intermediate connection element (50) and positioned in the support (242) takes the form of a cam.
  10. Household appliance according to one of the above claims, characterised in that spring connection (54) is formed by a cylinder-type hinge element provided on the intermediate connection element (50) and by a hinged hook (62) provided at one end of the return spring (60).
EP09765766.2A 2008-06-16 2009-06-08 Household appliance with device for door weight compensation Active EP2291105B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09765766T PL2291105T3 (en) 2008-06-16 2009-06-08 Household appliance with device for door weight compensation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2008/04364A TR200804364A1 (en) 2008-06-16 2008-06-16 Household appliance with door weight compensation
PCT/EP2009/057021 WO2009153186A1 (en) 2008-06-16 2009-06-08 Household appliance with device for door weight compensation

Publications (2)

Publication Number Publication Date
EP2291105A1 EP2291105A1 (en) 2011-03-09
EP2291105B1 true EP2291105B1 (en) 2014-11-26

Family

ID=40972949

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09765766.2A Active EP2291105B1 (en) 2008-06-16 2009-06-08 Household appliance with device for door weight compensation

Country Status (5)

Country Link
EP (1) EP2291105B1 (en)
ES (1) ES2526416T3 (en)
PL (1) PL2291105T3 (en)
TR (1) TR200804364A1 (en)
WO (1) WO2009153186A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9642511B2 (en) * 2015-09-30 2017-05-09 Haier Us Appliance Solutions, Inc. In-situ door removal device in a dishwashing appliance

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425365A (en) 1945-11-13 1947-08-12 Aviat Corp Counterbalanced door structure
US3921252A (en) 1974-04-29 1975-11-25 Gen Electric Hinge assembly for a dishwasher door
DE8709496U1 (en) 1987-07-10 1987-08-20 Miele & Cie Gmbh & Co, 4830 Guetersloh, De
DE19923994A1 (en) 1999-05-26 2000-11-30 Bsh Bosch Siemens Hausgeraete Household appliance hinge device
ITPD20060034A1 (en) 2006-02-02 2007-08-03 Zanovello Srl HINGE FOR OVEN OR SIMILAR DOORS

Also Published As

Publication number Publication date
WO2009153186A1 (en) 2009-12-23
ES2526416T3 (en) 2015-01-12
PL2291105T3 (en) 2015-04-30
TR200804364A1 (en) 2011-07-21
EP2291105A1 (en) 2011-03-09

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