ES2272660T3 - DOOR HINGE. - Google Patents

DOOR HINGE. Download PDF

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Publication number
ES2272660T3
ES2272660T3 ES02425779T ES02425779T ES2272660T3 ES 2272660 T3 ES2272660 T3 ES 2272660T3 ES 02425779 T ES02425779 T ES 02425779T ES 02425779 T ES02425779 T ES 02425779T ES 2272660 T3 ES2272660 T3 ES 2272660T3
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ES
Spain
Prior art keywords
box
shaped structure
hinge according
door
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.)
Expired - Lifetime
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ES02425779T
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Spanish (es)
Inventor
Angelo Vanini
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Nuova Star SpA
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Nuova Star SpA
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Publication date
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Publication of ES2272660T3 publication Critical patent/ES2272660T3/en
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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
    • E05F1/1269—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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F24C15/023—Mounting of doors, e.g. hinges, counterbalancing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/218—Holders
    • E05Y2201/22—Locks
    • 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
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/404—Function thereof
    • E05Y2201/422—Function thereof for opening
    • E05Y2201/426—Function thereof for opening for the initial opening movement
    • 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
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/40—Mounting location; Visibility of the elements
    • E05Y2600/46—Mounting location; Visibility of the elements in or on the wing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/304—Application of doors, windows, wings or fittings thereof for domestic appliances for dishwashers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/308—Application of doors, windows, wings or fittings thereof for domestic appliances for ovens

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Hinges (AREA)

Abstract

A hinge for oven doors comprising a first box-shaped structure fixed to the oven frame and a second box-shaped structure fixed to the door, a lever connecting the first and second structures which pivots on a pin integral with the lever and turns about the pin between an oven closed and an oven open position; the second structure comprising a spiral spring for adjusting door opening and able to generate a moment which opposes door opening and an elastic element, consisting of metal wire and U-shaped, whose middle portion is connected to the second box-shaped structure and supports, at the ends of the two arms, each comprising a bending spiral spring, a roller which slides on a cam profile of the lever, to generate a moment which facilitates door opening through an angle of given amplitude and prevailing over the first moment. <IMAGE>

Description

Bisagra de puerta.Door hinge.

La presente invención se refiere a una bisagra para una puerta y en particular a una bisagra que se puede usar para vincular una puerta de electrodomésticos, tales como hornos, a las respectivas estructuras de soporte.The present invention relates to a hinge for a door and in particular to a hinge that can be used to link a door of appliances, such as ovens, to the respective support structures.

Las bisagras de este tipo se componen de dos partes separadas, ambas con una estructura con forma de caja y relacionadas entre sí cinemáticamente.Hinges of this type are made up of two separate parts, both with a box-shaped structure and kinematically related to each other.

Más exactamente, la primera de esas partes se fija a la estructura del horno de un lado de su abertura rectangular, mientras que la segunda parte se fija a un borde de la puerta, que de esta manera se puede mover, girando con respecto a la abertura.More exactly, the first of those parts is fixed to the oven structure on one side of its opening rectangular, while the second part is fixed to an edge of the door, which in this way can be moved, turning with respect to The opening.

Dichas primera y segunda estructura con forma de caja están conectadas entre sí por medio de una palanca, el extremo de un primer brazo de la palanca estando conectado rígidamente a la primera estructura con forma de caja, mientras que el extremo de un segundo brazo de la palanca estando abisagrado a la segunda estructura con forma de caja a través de un perno.Said first and second structure shaped box are connected to each other by means of a lever, the end of a first lever arm being rigidly connected to the first box-shaped structure, while the end of a second lever arm being hinged to the second box-shaped structure through a bolt.

Como consecuencia de lo anterior, durante la rotación de la puerta, en su dirección de apertura o en la dirección opuesta, es decir en la dirección de cierre, la segunda estructura con forma de caja gira alrededor del perno.As a consequence of the above, during the door rotation, in its opening direction or in the direction  opposite, that is, in the closing direction, the second structure Box-shaped revolves around the bolt.

La segunda estructura con forma de caja también incluye parte de los medios internos para ajustar la apertura de la puerta y, más en particular, medios que, durante la apertura de la puerta, primero producen que la misma gire rápidamente de un ángulo de una determinada amplitud y luego que se abra gradualmente a baja velocidad, oponiéndose al peso de la misma puerta, hasta que quede totalmente abierta.The second box-shaped structure also includes part of the internal means to adjust the opening of the door and, more particularly, means that, during the opening of the door, first produce that it rotates quickly from an angle of a certain amplitude and then gradually open at low speed, opposing the weight of the same door, until it remains fully open

Esos medios internos de ajuste, del tipo conocido, comprenden una varilla colocada dentro de la segunda estructura con forma de caja. La parte inferior de la varilla está conectada, mediante un segundo perno, paralelo con el perno para la rotación de la segunda estructura con forma de caja, al segundo brazo de la palanca.Those internal means of adjustment, of the type known, comprise a rod placed inside the second box-shaped structure. The bottom of the rod is connected, by a second bolt, parallel with the bolt for the rotation of the second box-shaped structure, to the second lever arm.

Los medios internos de ajuste también comprenden primeros medios elásticos que presionan la varilla sobre el segundo perno, generando un momento de fuerza con respecto al primer perno que se transmite a través de la varilla y la segunda estructura con forma de caja a la puerta en una dirección que se opone a la apertura de la puerta, lo que equivale a decir, tendiendo a que gire alrededor del primer perno en la dirección opuesta a la de apertura de la puerta.The internal adjustment means also comprise first elastic means that press the rod on the second bolt, generating a moment of force with respect to the first bolt which is transmitted through the rod and the second structure with box shape to the door in a direction that opposes the door opening, which is equivalent to saying, tending to turn around the first bolt in the opposite direction to that of door opening.

Los medios internos también comprenden segundos medios elásticos adecuados para generar un segundo momento de fuerza que, durante las etapas iniciales de apertura de la puerta, se oponen al primer momento de fuerza y lo superan de manera que la puerta realice un rápido movimiento de apertura del ya mencionado ángulo de una determinada amplitud.The internal media also comprise seconds suitable elastic means to generate a second moment of force that, during the initial stages of opening the door, oppose the first moment of strength and overcome it so that the door perform a rapid opening movement of the aforementioned angle of a certain amplitude.

Más exactamente, los segundos medios elásticos se componen de un resorte espiralado envuelto de manera deslizante alrededor de un árbol y situado entre una aleta de tope solidaria con la segunda estructura configurada con forma de caja y un saliente del árbol.More precisely, the second elastic means they consist of a spiral spring wrapped in a sliding way around a tree and located between a solidary butt fin with the second box-shaped structure configured and a outgoing from the tree.

Un extremo del árbol soporta un tercer perno con un eje paralelo a los ejes de dichos primer y segundo perno y cuyos extremos opuestos se deslizan dentro de una ranura con una dada longitud hecha en la segunda estructura con forma de caja, la cual tiene el cometido de guiar y limitar la carrera del perno. En el tercer perno hay un rodillo loco. Cuando la puerta está cerrada y durante las fases iniciales de apertura de la puerta, el rodillo loco se apoya sobre un perfil de leva hecho sobre el borde superior de la palanca y se separa del borde cuando la puerta ha superado el antes mencionado ángulo de amplitud determinada.One end of the shaft supports a third bolt with an axis parallel to the axes of said first and second bolts and whose opposite ends slide into a slot with a given length made in the second box-shaped structure, which It has the task of guiding and limiting the bolt stroke. At Third bolt there is a crazy roller. When the door is closed and during the initial phases of opening the door, the roller crazy lean on a cam profile made over the top edge of the lever and separates from the edge when the door has exceeded the aforementioned angle of amplitude determined.

Durante la etapa de contacto del rodillo y la leva, el resorte espiralado se comprime entre la aleta y el saliente del árbol.During the contact stage of the roller and the cam, the spiral spring is compressed between the fin and the outgoing from the tree.

Como consecuencia de lo anterior, la leva transmite, a través del rodillo, el árbol, el resorte espiralado y la aleta de tope, el segundo momento de fuerza a la segunda estructura con forma de caja y, por ende, a la puerta, que tiende a hacer girar la puerta en su dirección de apertura.As a consequence of the above, the cam transmits, through the roller, the tree, the spiral spring and the butt fin, the second moment of force to the second box-shaped structure and, therefore, at the door, which tends to Turn the door in its opening direction.

Sin embargo, en la práctica los medios de conexión para la transmisión del segundo momento de fuerza son relativamente complejos, así como también caros con respecto a sus prestaciones.However, in practice the means of connection for the transmission of the second moment of force are relatively complex, as well as expensive with respect to their benefits.

Una bisagra para puerta según el estado del arte está representada en el documento EP-0.632.180.A door hinge according to the state of the art It is represented in EP-0.632.180.

El objetivo de la presente invención es el de proporcionar una bisagra del tipo descrito arriba que carezca de las desventajas mencionadas con anterioridad.The objective of the present invention is to provide a hinge of the type described above that lacks the disadvantages mentioned above.

En virtud de lo anterior, la presente invención satisface este objetivo proporcionando una bisagra para puertas de hornos o electrodomésticos similares con las características descritas en la reivindicación 1.By virtue of the foregoing, the present invention satisfies this goal by providing a hinge for doors ovens or similar appliances with features described in claim 1.

Las características técnicas de la presente invención, de acuerdo con los objetivos antes mencionados, están enumeradas en las reivindicaciones que están más adelante y las ventajas están ilustradas claramente en la descripción detallada que sigue, con referencia a los dibujos anexos, que exhiben una realización preferida de la invención sin restringir el alcance del concepto inventivo, y en los cuales:The technical characteristics of this invention, according to the aforementioned objectives, are listed in the claims below and the advantages are clearly illustrated in the detailed description which follows, with reference to the attached drawings, which exhibit a preferred embodiment of the invention without restricting the scope of the inventive concept, and in which:

- la figura 1 es una vista esquemática en perspectiva de un horno con una puerta vinculada al mismo mediante dos bisagras hechas de acuerdo con la presente invención;- Figure 1 is a schematic view in perspective of an oven with a door linked to it by two hinges made in accordance with the present invention;

- la figura 2 es una vista frontal esquemática, parcialmente en corte transversal, de una realización de una de las dos bisagras ilustradas en la figura 1, en varias condiciones operativas diferentes;- Figure 2 is a schematic front view, partially in cross-section, of one embodiment of one of the two hinges illustrated in figure 1, in various conditions different operations;

- la figura 3 es una vista de despiece de la bisagra exhibida en la figura 2;- Figure 3 is an exploded view of the hinge shown in figure 2;

- la figura 4 es una vista en planta amplificada de un detalle exhibido en la figura 2;- Figure 4 is an enlarged plan view of a detail shown in figure 2;

- la figura 5 es una vista esquemática en perspectiva y amplificada de otro detalle exhibido en la figura 2.- Figure 5 is a schematic view in perspective and amplified from another detail shown in the figure 2.

Con referencia a las figuras 1, 2 y 3, el número 1 indica un horno, en su totalidad, que comprende un bastidor (2) en cuyo fondo está vinculada una puerta (3) mediante dos bisagras (4), las cuales permiten que la puerta gire alrededor de un eje horizontal (5).With reference to figures 1, 2 and 3, the number 1 indicates an oven, in its entirety, comprising a frame (2) at the bottom of which a door (3) is linked by two hinges (4), which allow the door to rotate around an axis horizontal (5).

Tal como se exhibe en particular en las figuras 2 y 3, cada una de las dos bisagras (4) es una bisagra hecha de una primera estructura con forma de caja (6) fijada al bastidor (2) del horno (1), y una segunda estructura con forma de caja (7) fijada a la puerta (3). Las dos estructuras con forma de caja (6 y 7) están conectadas cinemáticamente mediante una palanca (8), cuyo primer brazo (8') está fijado rígidamente a la primera estructura con forma de caja (6) y cuyo segundo brazo (8'') está fijado, mediante un perno (9) que pasa a través de un orificio (9') en correspondencia del extremo del segundo brazo (8'') y coaxial con el eje (5), a la segunda estructura (7). La segunda estructura comprende una varilla (10) situada longitudinalmente dentro de la misma segunda estructura (7) y conectada en correspondencia de su extremo inferior, mediante un perno (11) paralelo con el perno (9) y que pasa a través de un orificio (11') en una sección intermedia del segundo brazo (8'') de la palanca (8), a esta última, de manera que la varilla (10) pivote alrededor de un eje (12) del perno (11) que pasa a través del orificio (11') de la palanca (8).As shown in particular in the figures 2 and 3, each of the two hinges (4) is a hinge made of one first box-shaped structure (6) fixed to the frame (2) of the oven (1), and a second box-shaped structure (7) fixed to the door (3). The two box-shaped structures (6 and 7) are kinematically connected by a lever (8), whose first arm (8 ') is rigidly fixed to the first structure with box shape (6) and whose second arm (8``) is fixed, by a bolt (9) passing through a hole (9 ') in correspondence of the end of the second arm (8``) and coaxial with the axis (5), to the second structure (7). The second structure it comprises a rod (10) located longitudinally within the same second structure (7) and connected in correspondence of its lower end, by means of a bolt (11) parallel with the bolt (9) and passing through a hole (11 ') in an intermediate section from the second arm (8``) of the lever (8), to the latter, so that the rod (10) pivots around an axis (12) of the bolt (11) passing through the hole (11 ') of the lever (8).

La segunda estructura con forma de caja (7) comprende primeros medios (13) para ajustar la apertura de la puerta (3) que se componen de medios elásticos (14), en particular se componen de un resorte espiralado (15) substancialmente coaxial con la varilla (10) y que operan por tracción, como se describirá con mayores detalles abajo, un extremo del cual está conectado al extremo superior de la estructura (7) mediante una traviesa (16) mientras que el otro extremo está conectado a un orificio (17) de una pared lateral de la varilla (10).The second box-shaped structure (7) comprises first means (13) to adjust the opening of the door (3) which are composed of elastic means (14), in particular they consist of a spirally coiled spring (15) substantially with the rod (10) and operating by traction, as will be described in more detail below, one end of which is connected to the upper end of the structure (7) by a crossbar (16) while the other end is connected to a hole (17) of a side wall of the rod (10).

Cabe hacer notar que los pernos (9 y 11) no se mueven durante la rotación de la puerta (3) y, por ende, la rotación de la segunda estructura con forma de caja (7) y durante la rotación en ambas direcciones, entre una posición límite cerrada y una posición límite totalmente abierta, la segunda estructura con forma de caja (7) gira alrededor del eje (5) del perno (9) y la varilla (10) gira alrededor del eje (12) del perno (11). Tal como se exhibe en las figuras 2 y 3, el emplazamiento recíproco de los dos pernos (9 y 11) es tal que durante la apertura de la puerta (3) el resorte espiralado (15) es sometido a tracción por la varilla interna (10), generando un momento de fuerza (M1), antihorario en las figuras 2 y 3, con respecto al eje (5), que se opone a la apertura de la puerta (3) para regular la velocidad de bajada de la puerta mientras se abre.It should be noted that the bolts (9 and 11) are not move during the rotation of the door (3) and, therefore, the rotation of the second box-shaped structure (7) and during rotation in both directions, between a closed limit position and a fully open limit position, the second structure with box shape (7) rotates around the shaft (5) of the bolt (9) and the rod (10) rotates around the shaft (12) of the bolt (11). Such as the reciprocal location of the two bolts (9 and 11) is such that during the opening of the door (3) the spiral spring (15) is tensioned by the rod internal (10), generating a moment of force (M1), counterclockwise in Figures 2 and 3, with respect to the axis (5), which opposes the door opening (3) to regulate the lowering speed of the door while it opens.

Tal como se muestra en las figuras 2, 3 y 4, la segunda estructura con forma de caja (7) además comprende segundos medios (18) para ajustar la apertura de la puerta (3), que se componen de un elemento elástico (19), en particular configurado en U y realizado de alambre metálico. El elemento comprende dos brazos (20) y una porción intermedia (21). Cada uno de los dos brazos (20) forma un resorte flector (22) que en particular se compone de un arrollamiento con un eje (24) substancialmente paralelo con la porción intermedia (21) y con el eje (5) de rotación de la bisagra (4).As shown in Figures 2, 3 and 4, the second box-shaped structure (7) also comprises seconds means (18) for adjusting the door opening (3), which is they consist of an elastic element (19), in particular configured in U and made of metallic wire. The element comprises two arms (20) and an intermediate portion (21). Each of the two arms (20) it forms a bending spring (22) which in particular consists of a winding with an axis (24) substantially parallel with the intermediate portion (21) and with the axis (5) of rotation of the hinge (4).

La porción intermedia (20) del elemento elástico (19) está conectada a la pared de fondo (25) de la segunda estructura con forma de caja (7) a través de medios de vinculación (26) que se componen de medios de acoplamiento de rápida liberación (27). En particular, los medios (27) comprenden una aleta (28) sobre la pared (25) y que se extiende hacia el resorte (15) para crear un asiento (29) para la porción intermedia (21) del elemento elástico (19).The intermediate portion (20) of the elastic element (19) is connected to the back wall (25) of the second box-shaped structure (7) through linking means (26) which consist of quick release coupling means (27). In particular, the means (27) comprise a fin (28) on the wall (25) and extending towards the spring (15) to create a seat (29) for the intermediate portion (21) of the elastic element (19).

Los extremos de los dos brazos (20) del elemento elástico (19) están envueltos en anillo y soportan los extremos de un perno (30) cuyo eje (31) es paralelo al eje (24) y sobre el cual está colocado de manera giratoria un rodillo (32).The ends of the two arms (20) of the element elastic (19) are wrapped in a ring and support the ends of a bolt (30) whose axis (31) is parallel to the axis (24) and on which a roller (32) is rotatably placed.

En las paredes laterales opuestas (33), substancialmente normales a la pared de fondo (25) de la segunda estructura con forma de caja (7) hay dos ranuras (34) que se extienden a lo largo de una sección de una longitud determinada en una dirección substancialmente paralela al eje del resorte espiralado (15). La ranuras son adecuadas para recibir los extremos opuestos del perno (30) el cual soporta el rodillo (32) adecuado para vincularse de manera deslizante con una porción (35) dada del borde superior de la palanca (8) que forma un perfil de leva cuya función está descrita más adelante.On opposite side walls (33), substantially normal to the bottom wall (25) of the second box-shaped structure (7) there are two slots (34) that are extend along a section of a certain length in a direction substantially parallel to the spring axis spiral (15). The slots are suitable to receive the ends opposite the bolt (30) which supports the appropriate roller (32) to slide in a sliding manner with a given portion (35) of the upper edge of the lever (8) forming a cam profile whose function is described later.

En condiciones en las cuales hay contacto entre el rodillo (32) y la porción (35) del borde superior de la palanca (8), los enrollamientos (23) de los dos resortes de flexión (22) del elemento elástico (19) son sometidos a una flexión substancialmente alrededor del eje (24), generando un momento de fuerza (M2) opuesto al momento (M1) (horario en las figuras 2 y 3), con respecto al eje (5) de la segunda estructura con forma de caja (7) y, por ende, con respecto a la puerta (3), haciendo que esta última gire en su dirección de apertura.In conditions in which there is contact between the roller (32) and the portion (35) of the upper edge of the lever (8), the curls (23) of the two bending springs (22) of the elastic element (19) are substantially flexed around the axis (24), generating a moment of force (M2) opposite at the moment (M1) (schedule in figures 2 and 3), with respect to the axis (5) of the second box-shaped structure (7) and, therefore, with with respect to the door (3), making the latter turn in its opening address

El número 36 designa un dispositivo de rápido bloqueo/liberación de la puerta (3). El dispositivo (36), de tipo conocido, trabaja entre la puerta (3) y el bastidor (2) y, después de cada operación manual de cierre de la puerta (3), puede mantener la puerta cerrada hasta que el dispositivo (36) se active manualmente, usando un pulsador de control (37), eliminando todo impedimento para abrir la puerta (3).The number 36 designates a fast device door lock / release (3). The device (36), of type known, works between the door (3) and the frame (2) and then For each manual door closing operation (3), you can keep the door closed until the device (36) is activated manually, using a control button (37), removing all impediment to open the door (3).

En la práctica, con referencia a la patente de invención europea EP 0.632.180, y comenzando con la puerta (3) en su condición de cerrada exhibida en la figura 2, en la cual el rodillo (32) está en contacto con la sección inicial de la porción (35) del borde superior de la palanca (8), después de la activación del pulsador de control (37) las bisagras (4) primero provocan una rotación de apertura relativamente rápida de la puerta (3) que cubre un dado espacio angular, luego un movimiento de apertura frenado gradualmente, hasta que la puerta (3) quede totalmente abierta.In practice, with reference to the patent of European invention EP 0.632.180, and starting with the door (3) in its closed condition shown in figure 2, in which the roller (32) is in contact with the initial section of the portion (35) of the upper edge of the lever (8), after activation of the control button (37) the hinges (4) first cause a relatively fast opening rotation of the door (3) that covers a given angular space, then an opening movement braking gradually, until the door (3) is fully open

Más exactamente, la etapa inicial de apertura rápida se produce gracias a la supremacía del momento de fuerza M2 generado por el elemento elástico (19) sobre el momento de fuerza M1 generado por el resorte espiralado (15). Esta etapa termina cuando el rodillo (32) se separa de la porción (35) del borde superior de la palanca (8), lo que equivale a decir, cuando la segunda estructura con forma de caja (7) alcanza la posición denotada con 38. En esta posición los extremos del perno (30) que soporta el rodillo (32) alcanzan la posición de final de carrera a lo largo de las respectivas ranuras (34) y el rodillo (32) deja de estar en contacto con la porción (35) del borde superior de la palanca (8).More exactly, the initial opening stage rapid is produced thanks to the supremacy of the moment of force M2 generated by the elastic element (19) on the moment of force M1 generated by the spiral spring (15). This stage ends when the roller (32) is separated from the portion (35) of the upper edge of the lever (8), which is equivalent to saying, when the second box-shaped structure (7) reaches the position denoted with 38. In this position the ends of the bolt (30) that supports the roller (32) reach the limit switch position along the respective grooves (34) and the roller (32) are no longer in contact with the portion (35) of the upper edge of the lever (8).

Después de lo anterior la puerta (3), bajo la acción combinada de su peso que facilita su rotación de bajada y la acción de frenado provocada por el momento de fuerza (M1) a través del resorte espiralado (15) completa su etapa de apertura girando gradualmente hasta la posición denotada con 39 en la figura 2.After the above the door (3), under the combined action of its weight that facilitates its downward rotation and braking action caused by force moment (M1) through of the spiral spring (15) completes its opening stage by turning gradually to the position denoted with 39 in figure 2.

Como se muestra en la figura 5, para regular la intensidad del momento M1 y, por consiguiente, su acción de frenado sobre la puerta (3), hay medios (40) para ajustar la tensión del resorte de tracción (15). Esos medios (40) comprende medios de ajuste de rosca (41) para el punto de vinculación de uno de los dos extremos del resorte (15). La rosca (42) de los medios (41) se puede fijar en un extremo de una placa (43) que tiene una pluralidad de orificios (44) para la vinculación del extremo del resorte (15). Como se muestra en la figura 2, para ajustar la tensión del resorte (15) el extremo inferior del resorte (15) se puede vincular a uno de los orificios (17) de la varilla (10).As shown in Figure 5, to regulate the intensity of the moment M1 and, consequently, its braking action on the door (3), there are means (40) to adjust the tension of the tension spring (15). Those means (40) comprise means of thread adjustment (41) for the point of attachment of one of the two spring ends (15). The thread (42) of the means (41) is can be fixed at one end of a plate (43) that has a plurality of holes (44) for linking the end of the spring (15). As shown in Figure 2, to adjust the spring tension (15) the lower end of the spring (15) is You can link to one of the holes (17) of the rod (10).

Cabe hacer notar que, para facilitar y acelerar las operaciones de ensamblado de la bisagra (4) a la puerta (3), la segunda estructura con forma de caja (7) tiene medios de acoplamiento rápido (45) adecuados para operar conjuntamente con medios de alojamiento en un asiento (46) de la puerta (3) en el cual está encastrada la segunda estructura (7).It should be noted that, to facilitate and accelerate the assembly operations of the hinge (4) to the door (3), the second box-shaped structure (7) has means of quick coupling (45) suitable to operate together with accommodation means in a seat (46) of the door (3) in which the second structure (7) is embedded.

En particular, los medios de acoplamiento rápido (45) se componen de una aleta (47) sobresaliente de la parte externa de la segunda estructura con forma de caja (7).In particular, quick coupling means (45) are composed of a fin (47) protruding from the part external of the second box-shaped structure (7).

Claims (16)

1. Bisagra (4) para una puerta (3) de un horno (1), del tipo que comprende una primera estructura con forma de caja (6) que se puede fijar al bastidor (2) del horno y una segunda estructura con forma de caja (7) que se puede fijar a la puerta (3), una palanca (8) que conecta la primera y la segunda estructura con forma de caja, la segunda estructura con forma de caja (7) pivotando sobre un perno (9) solidario con la palanca (8) y girando alrededor del perno (9) entre una posición cerrada y una posición abierta (39), la segunda estructura con forma de caja (7) comprendiendo primeros (13) y segundos (18) medios para ajustar la apertura de la puerta; los primeros medios (13) generando un momento de fuerza que se opone a la apertura de la puerta y los segundos medios (18) generando un momento de fuerza que favorece la apertura de la puerta por un ángulo de una amplitud determinada y predominando sobre el primer momento, la bisagra (4) estando caracterizada porque los segundos medios de ajuste (18) comprenden un elemento elástico con forma de U (19) cuya porción intermedia (21) está conectada a través de medios de engranaje (26) a la segunda estructura con forma de caja (7) y soportando, en los extremos de sus dos brazos (20), un rodillo (32) que se desliza sobre al menos un perfil de leva (35) solidario con la primera estructura con forma de caja (6).1. Hinge (4) for a door (3) of an oven (1), of the type comprising a first box-shaped structure (6) that can be fixed to the oven frame (2) and a second shaped structure of box (7) that can be fixed to the door (3), a lever (8) that connects the first and second box-shaped structure, the second box-shaped structure (7) pivoting on a bolt (9 ) integral with the lever (8) and rotating around the bolt (9) between a closed position and an open position (39), the second box-shaped structure (7) comprising first (13) and second (18) means for adjust the door opening; the first means (13) generating a moment of force that opposes the opening of the door and the second means (18) generating a moment of force that favors the opening of the door by an angle of a certain amplitude and prevailing over the first, the hinge (4) being characterized in that the second adjustment means (18) comprise an elastic U-shaped element (19) whose intermediate portion (21) is connected through gear means (26) to the second box-shaped structure (7) and supporting, at the ends of its two arms (20), a roller (32) that slides on at least one cam profile (35) integral with the first box-shaped structure ( 6). 2. Bisagra según la reivindicación 1, caracterizada porque cada uno de los dos brazos comprende un resorte (22).2. Hinge according to claim 1, characterized in that each of the two arms comprises a spring (22). 3. Bisagra según la reivindicación 2, caracterizada porque el resorte es un resorte de flexión (22).3. Hinge according to claim 2, characterized in that the spring is a bending spring (22). 4. Bisagra según la reivindicación 2 o 3, caracterizada porque el resorte es un resorte de espiral (22) con al menos un arrollamiento (23) con un eje (24) substancialmente paralelo con la sección intermedia.4. Hinge according to claim 2 or 3, characterized in that the spring is a spiral spring (22) with at least one winding (23) with an axis (24) substantially parallel with the intermediate section. 5. Bisagra según una cualquiera de las precedentes reivindicaciones de 1 a 4, caracterizada porque el elemento elástico (19) consiste en un alambre metálico.5. Hinge according to any one of the preceding claims 1 to 4, characterized in that the elastic element (19) consists of a metallic wire. 6. Bisagra según la reivindicación 1, caracterizada porque un perfil de leva es solidario con la primera estructura con forma de caja y es una porción determinada del borde superior de la palanca (8).6. Hinge according to claim 1, characterized in that a cam profile is integral with the first box-shaped structure and is a determined portion of the upper edge of the lever (8). 7. Bisagra según la reivindicación 1, caracterizada porque los medios de vinculación (26) consisten en medios de acoplamiento de rápida liberación (27).7. Hinge according to claim 1, characterized in that the linking means (26) consist of quick release coupling means (27). 8. Bisagra según la reivindicación 7, caracterizada porque los medios de acoplamiento (27) comprenden una aleta (28) en la base (25) de la segunda estructura con forma de caja (7), que se extiende hacia el rodillo (32) y formando con la base un asiento (29) que aloja la porción intermedia (21) del elemento elástico (19).Hinge according to claim 7, characterized in that the coupling means (27) comprise a fin (28) in the base (25) of the second box-shaped structure (7), which extends towards the roller (32) and forming with the base a seat (29) that houses the intermediate portion (21) of the elastic element (19). 9. Bisagra según la reivindicación 1, caracterizada porque los extremos de los brazos (20) soportan el rodillo (32) por medio de un perno (30) cuyo eje es paralelo con el perno (9) usado para la rotación de la bisagra y cuyos extremos están fijados a las paredes laterales (33) de la segunda estructura con forma de caja (7) por medio de dos ranuras guía (34).9. Hinge according to claim 1, characterized in that the ends of the arms (20) support the roller (32) by means of a bolt (30) whose axis is parallel with the bolt (9) used for the rotation of the hinge and whose ends are fixed to the side walls (33) of the second box-shaped structure (7) by means of two guide grooves (34). 10. Bisagra según la reivindicación 1, caracterizada porque los primeros medios (13) para ajustar la apertura de la puerta comprenden un resorte de tracción (15).10. Hinge according to claim 1, characterized in that the first means (13) for adjusting the door opening comprise a tension spring (15). 11. Bisagra según la reivindicación 10, caracterizada porque el resorte (15) es un resorte de espiral (15) cuyo primer extremo está fijado a medios de fijación (41, 42, 43) en la segunda estructura con forma de caja (7), y el otro extremo está fijado a la palanca (8) por medio de una varilla interna (10) insertada entre ellos.11. Hinge according to claim 10, characterized in that the spring (15) is a spiral spring (15) whose first end is fixed to fixing means (41, 42, 43) in the second box-shaped structure (7) , and the other end is fixed to the lever (8) by means of an internal rod (10) inserted between them. 12. Bisagra según la reivindicación 11, caracterizada porque comprende medios (40) para ajustar el resorte de tracción.12. Hinge according to claim 11, characterized in that it comprises means (40) for adjusting the tension spring. 13. Bisagra según la reivindicación 12, caracterizada porque los medios de ajuste del resorte (40) comprenden medios de ajuste de rosca (41).13. Hinge according to claim 12, characterized in that the spring adjustment means (40) comprise thread adjustment means (41). 14. Bisagra según la reivindicación 12, caracterizada porque los medios de ajuste del resorte (40) comprenden una placa (43) con una pluralidad de orificios (44) para la fijación del extremo del resorte (15).14. Hinge according to claim 12, characterized in that the spring adjustment means (40) comprise a plate (43) with a plurality of holes (44) for fixing the spring end (15). 15. Bisagra según la reivindicación 1, caracterizada porque la segunda estructura con forma de caja (7) tiene medios de acoplamiento rápido (45) adecuados para trabajar conjuntamente con medios de alojamiento sobre un asiento (46) en la puerta la cual aloja la segunda estructura con forma de caja (7).15. Hinge according to claim 1, characterized in that the second box-shaped structure (7) has quick coupling means (45) suitable for working together with housing means on a seat (46) in the door which houses the second box-shaped structure (7). 16. Bisagra según la reivindicación 15, caracterizada porque los medios de acoplamiento rápido (45) se componen de una aleta (47) que sobresale de la parte externa de la segunda estructura con forma de caja (7).16. Hinge according to claim 15, characterized in that the quick coupling means (45) are composed of a fin (47) protruding from the outer part of the second box-shaped structure (7).
ES02425779T 2002-12-17 2002-12-17 DOOR HINGE. Expired - Lifetime ES2272660T3 (en)

Applications Claiming Priority (1)

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EP02425779A EP1431671B1 (en) 2002-12-17 2002-12-17 A door hinge

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AT (1) ATE339655T1 (en)
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DE60214741T2 (en) 2007-09-13
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ATE339655T1 (en) 2006-10-15
DE60214741D1 (en) 2006-10-26

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