ES2386628B1 - PROCEDURE FOR OBTAINING A LAMELUNE PIECE AND LAMELUNE PIECE SO OBTAINED. - Google Patents

PROCEDURE FOR OBTAINING A LAMELUNE PIECE AND LAMELUNE PIECE SO OBTAINED. Download PDF

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Publication number
ES2386628B1
ES2386628B1 ES201030306A ES201030306A ES2386628B1 ES 2386628 B1 ES2386628 B1 ES 2386628B1 ES 201030306 A ES201030306 A ES 201030306A ES 201030306 A ES201030306 A ES 201030306A ES 2386628 B1 ES2386628 B1 ES 2386628B1
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Spain
Prior art keywords
piece
obtaining
injection
procedure
parts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
ES201030306A
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Spanish (es)
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ES2386628A1 (en
Inventor
Jesús González García
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.)
Megatech Industries Orense SL
Original Assignee
Megatech Industries Orense SL
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Filing date
Publication date
Application filed by Megatech Industries Orense SL filed Critical Megatech Industries Orense SL
Priority to ES201030306A priority Critical patent/ES2386628B1/en
Publication of ES2386628A1 publication Critical patent/ES2386628A1/en
Application granted granted Critical
Publication of ES2386628B1 publication Critical patent/ES2386628B1/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1615—The materials being injected at different moulding stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S1/3848—Flat-type wiper blade, i.e. without harness
    • B60S1/3874—Flat-type wiper blade, i.e. without harness with a reinforcing vertebra
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S2001/3812—Means of supporting or holding the squeegee or blade rubber
    • B60S2001/3817—Means of supporting or holding the squeegee or blade rubber chacterised by a backing strip to aid mounting of squeegee in support
    • B60S2001/382—Means of supporting or holding the squeegee or blade rubber chacterised by a backing strip to aid mounting of squeegee in support the backing strip being an essentially planar reinforcing strip, e.g. vertebra

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Procedimiento para la obtención de una pieza lamelunas, en el que la pieza lamelunas comprende un perfil alargado formado por dos partes, que consiste en obtener dicha pieza lamelunas (1) mediante bi-inyección, de tal modo que en una primera etapa de inyección se obtiene una parte de material plástico duro (1a) y en una segunda etapa de inyección se obtiene una parte de material plástico más blando (1b) que envuelve la parte previamente obtenida, por lo que se obtiene una pieza lamelunas hecha de un solo cuerpo con dos partes (1a, 1b) que tienen unas propiedades de dureza diferentes.Procedure for obtaining a lameluna piece, in which the lameluna piece comprises an elongated profile formed by two parts, which consists in obtaining said lameluna piece (1) by bi-injection, such that in a first injection stage a part of hard plastic material (1a) is obtained and in a second injection stage a part of softer plastic material (1b) is obtained that envelops the previously obtained part, whereby a piece of lamelunas made of a single body with two parts (1a, 1b) that have different hardness properties.

Description

Procedimiento para la obtención de una pieza lamelunas y
pieza lamelunas así obtenida Procedure for obtaining a piece of lamelunas and
piece of lamelunas thus obtained

OBJETO DE LA INVENCIÓN OBJECT OF THE INVENTION

La presente solicitud de patente de invención tiene por obj eto el registro de un procedimiento para la obtención de una
pieza lamelunas y dicha pieza obtenida que incorpora notables innovaciones y ventajas frente a los procedimientos actualmente conocidos. The present invention patent application is intended to register a procedure for obtaining a
lamelunas piece and said piece obtained that incorporates notable innovations and advantages over the procedures currently known.

ANTECEDENTES DE LA INVENCIÓN BACKGROUND OF THE INVENTION

Una de las partes que forman parte de una escobilla limpiaparabrisas para vehículos de tipo convencional es una pieza denominada lamelunas que es la responsable de estar en contacto con la superficie acristalada a barrer. One of the parts that are part of a wiper blade for conventional type vehicles is a piece called lamelunas that is responsible for being in contact with the glazed surface to be swept.

En la actualidad, el procedimiento de obtención de la pieza lamelunas se lleva a cabo mediante un procedimiento de extrusión para obtener una pieza de material plástico, seguido de unas etapas posteriores de mecanizado o troquelado. Adicionalmente, en algunos casos dicha pieza lamelunas incluye una pieza de material metálico a modo de refuerzo, tal como puede verse en la figura 1 marcada por un rallado entrecruzado. At present, the procedure for obtaining the lameluna piece is carried out by means of an extrusion process to obtain a piece of plastic material, followed by subsequent machining or die cutting stages. Additionally, in some cases said lamelon piece includes a piece of metallic material as a reinforcement, as can be seen in Figure 1 marked by a cross-linked grating.

Sin embargo, este procedimiento debido a las diferentes etapas que conlleva implica unos costes de fabricación elevados (utillajes especiales, maquinaria, personal adicional), por lo que existe la necesidad de encontrar un nuevo procedimiento de fabricación de este tipo de piezas que resulte más económico. However, this procedure due to the different stages involved implies high manufacturing costs (special tools, machinery, additional personnel), so there is a need to find a new manufacturing process for this type of parts that is more economical .

DESCRIPCIÓN DE LA INVENCIÓN DESCRIPTION OF THE INVENTION

La presente invención se ha desarrollado con el fin de proporcionar un procedimiento que resuelva los inconvenientes anteriormente mencionados, aportando, además, otras ventajas adicionales que serán evidentes a partir de la descripción que se acompaña a continuación. The present invention has been developed in order to provide a method that resolves the aforementioned drawbacks, also providing additional advantages that will be apparent from the description that follows.

Es por lo tanto un objeto de la presente invención proporcionar un procedimiento para la obtención de una pieza lamelunas, en el que la pieza lamelunas comprende un perfil alargado formado por dos partes, y se caracteriza esencialmente por el hecho de que consiste en obtener dicha pieza lamelunas mediante bi-inyección, de tal modo que en una primera etapa de inyección se obtiene una parte de material plástico duro y en una segunda etapa de inyección se obtiene una parte de material plástico más blando que envuelve la parte previamente obtenida, por lo que se obtiene una pieza lamelunas hecha de un solo cuerpo con dos partes que tienen unas propiedades de dureza diferentes. It is therefore an object of the present invention to provide a method for obtaining a lameluna piece, in which the lameluna piece comprises an elongated profile formed by two parts, and is essentially characterized by the fact that it consists in obtaining said piece lamelunas by means of bi-injection, in such a way that in a first stage of injection a part of hard plastic material is obtained and in a second stage of injection a part of softer plastic material is obtained that envelops the previously obtained part, so You get a piece of lamelunas made of a single body with two parts that have different hardness properties.

Gracias a estas características, se obtiene un nuevo procedimiento en la fabricación de piezas lamelunas que permite reducir el número de componentes (en especial, materiales metálicos), el número de procesos o ciclos de trabajo y, por consiguiente abaratar los costes de fabricación. Thanks to these characteristics, a new procedure is obtained in the manufacture of lameluna pieces that allows reducing the number of components (especially metal materials), the number of processes or work cycles and, consequently, lower manufacturing costs.

Otro objeto de la invención consiste en una pieza lamelunas Another object of the invention consists of a lameluna piece


obtenida por el procedimiento anteriormente descrito.
obtained by the procedure described above.

Otras características y ventajas del procedimiento objeto de Other characteristics and advantages of the procedure subject to

la presente invención resultarán evidentes a partir de la descripción de una realización preferida, pero no exclusiva, que se ilustra a modo de ejemplo no limitativo en los dibujos que se acompañan, en los cuales: The present invention will be apparent from the description of a preferred but not exclusive embodiment, which is illustrated by way of non-limiting example in the accompanying drawings, in which:

BREVE DESCRIPCIÓN DE LOS DIBUJOS BRIEF DESCRIPTION OF THE DRAWINGS

Figura 1. -es una vista en alzado del perfil de una pieza lamelunas de la técnica anterior; Figura 2. -Es una vista en alzado del perfil de una pieza lamelunas obtenida con el procedimiento de la presente invención; Figure 1.-is an elevation view of the profile of a lameluna piece of the prior art; Figure 2. - It is an elevation view of the profile of a lameluna piece obtained with the process of the present invention;

y Y

Figura 3.-Es una vista esquematizada en alzado de un molde utilizado en el procedimiento de la invención. Figure 3.- It is a schematic elevation view of a mold used in the process of the invention.

DESCRIPCIÓN DE UNA REALIZACIÓN PREFERENTE DESCRIPTION OF A PREFERRED EMBODIMENT

Tal como se muestra en la figura 2, se aprecia una pieza lamelunas 1 que formará parte de una escobilla limpiaparabrisas para un vehículo automóvil o similar la cual está conformada por un solo cuerpo obtenida a partir de un procedimiento que se describe seguidamente. As shown in Figure 2, a piece of lamelunas 1 can be seen that will form part of a wiper blade for a motor vehicle or the like which is formed by a single body obtained from a procedure described below.

Éste consiste en obtener dicha pieza lamelunas 1 mediante biinyección o inyección bi-materia, de tal modo que en una primera etapa de inyección se obtiene una parte de material plástico duro la y en una segunda etapa de inyección se obtiene una parte de material plástico más blando lb de material de caucho o similar que envuelve la parte la previamente obtenida, de manera que This consists in obtaining said lameluna piece 1 by bi-injection or bi-matter injection, so that in a first injection stage a part of hard plastic material is obtained and in a second injection stage a part of plastic material is obtained more soft lb of rubber or similar material that wraps around the previously obtained part, so that

obtiene una pieza lamelunas 1 hecha de un solo cuerpo con dos get a piece of lamelunas 1 made of a single body with two

partes que tienen unas propiedades de dureza diferentes. Dichas dos etapas de inyectado se llevan a cabo de forma simultanea en un mismo molde de tipo rotativo, en el que se prevén parts that have different hardness properties. Said two stages of injected are carried out simultaneously in the same rotary type mold, in which they are provided

5 una serie de canalizaciones de inyección para cavidades independientes, una cavidad para obtener la parte de material duro y una segunda cavidad destinada a la inyección del material blando sobre la parte de pieza obtenida anteriormente. 5 a series of injection pipes for independent cavities, a cavity for obtaining the hard material part and a second cavity destined for the injection of the soft material on the previously obtained part of the piece.

Como puede verse de forma esquematizada en la figura 3, dicho As can be seen schematically in Figure 3, said

10 molde 2 empleado en el procedimiento anterior puede ser del tipo que está conformado por dos mitades 2a, 2b cerrables de un modo convencional y en el que puede disponerse de unos medios de giro convencionales y medios de desplazamiento, tal como un brazo robot (no representado), para trasladar la parte obtenida en la primera The mold 2 used in the above procedure can be of the type that is formed by two halves 2a, 2b that can be closed in a conventional manner and in which conventional turning means and displacement means, such as a robot arm (not represented), to transfer the part obtained in the first

15 de las cavidades hacia la cavidad donde tiene lugar la segunda etapa en la cual se inyecta la segunda parte de material blando. Los detalles, las formas, las dimensiones y demás elementos accesorios, así como los materiales empleados en la fabricación del procedimiento de la invención podrán ser convenientemente 15 of the cavities towards the cavity where the second stage takes place in which the second part of soft material is injected. The details, shapes, dimensions and other accessory elements, as well as the materials used in the manufacture of the process of the invention may conveniently be

20 sustituidos por otros que sean técnicamente equivalentes y no se aparten de la esencialidad de la invención ni del ámbito definido por las reivindicaciones que se incluyen a continuación. 20 replaced by others that are technically equivalent and do not depart from the essentiality of the invention or the scope defined by the claims set forth below.

Claims (3)

REIVINDICACIONES 1. Procedimiento para la obtención de una pieza 1ame1unas, en el que la pieza 1ame1unas comprende un perfil alargado formado por dos partes, caracterizado por el hecho de que consiste en obtener 1. Procedure for obtaining a piece 1ame1unas, in which the piece 1ame1unas comprises an elongated profile formed by two parts, characterized by the fact that it consists in obtaining 5 dicha pieza 1ame1 unas (1) mediante bi-inyección, de tal modo que en una primera etapa de inyección se obtiene una parte de material plástico duro (la) y en una segunda etapa de inyección se obtiene una parte de material plástico más blando (lb) que envuelve la parte previamente obtenida, por 10 que se obtiene una pieza 5 said piece 1me1 some (1) by bi-injection, so that in a first stage of injection a part of hard plastic material (la) is obtained and in a second stage of injection a part of softer plastic material is obtained (lb) that wraps the previously obtained part, by which a piece is obtained 10 1ame1 unas hecha de un solo cuerpo con dos partes (la, lb) que tienen unas propiedades de dureza diferentes. 10 1ame1 ones made of a single body with two parts (the, lb) that have different hardness properties. 2. Procedimiento según la reivindicación 1, caracterizado por el hecho de que las dos etapas de inyectado se llevan a cabo de forma simultanea en el mismo molde. 2. Method according to claim 1, characterized in that the two stages of injecting are carried out simultaneously in the same mold. 15 3. Procedimiento según la reivindicación 2, caracterizado por el hecho de que el molde es de tipo rotativo. Method according to claim 2, characterized in that the mold is of the rotary type. 4. Pieza 1ame1unas (1) obtenida a partir de un procedimiento según cualquiera de las reivindicaciones anteriores, caracterizada por el hecho de que comprende un cuerpo provisto de dos partes 4. Piece 1 (1) 1 (1) obtained from a process according to any of the preceding claims, characterized in that it comprises a body provided with two parts 2 O (la, lb) de diferente material. 2 O (la, lb) of different material.
ES201030306A 2010-03-02 2010-03-02 PROCEDURE FOR OBTAINING A LAMELUNE PIECE AND LAMELUNE PIECE SO OBTAINED. Withdrawn - After Issue ES2386628B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES201030306A ES2386628B1 (en) 2010-03-02 2010-03-02 PROCEDURE FOR OBTAINING A LAMELUNE PIECE AND LAMELUNE PIECE SO OBTAINED.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201030306A ES2386628B1 (en) 2010-03-02 2010-03-02 PROCEDURE FOR OBTAINING A LAMELUNE PIECE AND LAMELUNE PIECE SO OBTAINED.

Publications (2)

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ES2386628A1 ES2386628A1 (en) 2012-08-24
ES2386628B1 true ES2386628B1 (en) 2013-03-12

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ES201030306A Withdrawn - After Issue ES2386628B1 (en) 2010-03-02 2010-03-02 PROCEDURE FOR OBTAINING A LAMELUNE PIECE AND LAMELUNE PIECE SO OBTAINED.

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3317945A (en) * 1965-09-17 1967-05-09 Hastings Mfg Co Molded windshield wiper blade
GB1429820A (en) * 1973-12-10 1976-03-31 Trico Folberth Ltd Windscreen wiper blades
DE2504453A1 (en) * 1975-02-04 1976-08-05 Rau Swf Autozubehoer Motor vehicle (windscreen) wiper blade - has integral main bracket of hard, sparingly elastic plastics, and a wiper bar of soft, flexible plastics or rubber
GB2044161B (en) * 1979-03-21 1982-10-20 Chiverstone Ltd Windshield wiper
FR2725152A1 (en) * 1994-09-30 1996-04-05 Grosfilley Jean Pierre Universal rotating base for moulds for multi-injection of plastics
DE10000375A1 (en) * 2000-01-07 2001-12-06 Valeo Auto Electric Gmbh Wiper blade for vehicle windscreen wiper; has wiper strip made of elastic rubber material and support bar made of springy elastic material attached to wiper strip by injection moulding

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Publication number Publication date
ES2386628A1 (en) 2012-08-24

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