ES2381826A1 - Procedure for manufacturing a telescopic tree and telescopic tree resulting from such procedure (Machine-translation by Google Translate, not legally binding) - Google Patents
Procedure for manufacturing a telescopic tree and telescopic tree resulting from such procedure (Machine-translation by Google Translate, not legally binding) Download PDFInfo
- Publication number
- ES2381826A1 ES2381826A1 ES200931300A ES200931300A ES2381826A1 ES 2381826 A1 ES2381826 A1 ES 2381826A1 ES 200931300 A ES200931300 A ES 200931300A ES 200931300 A ES200931300 A ES 200931300A ES 2381826 A1 ES2381826 A1 ES 2381826A1
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- Prior art keywords
- telescopic
- manufacturing
- plastic
- telescopic shaft
- tree
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- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000000034 method Methods 0.000 title claims description 11
- 239000000463 material Substances 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 2
- 238000000429 assembly Methods 0.000 claims 2
- 238000012856 packing Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001459 mortal effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/19—Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
- B62D1/192—Yieldable or collapsible columns
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
Description
Procedimiento de fabricación de árbol
telescópico y árbol telescópico resultante de dicho procedi-
miento.Manufacturing procedure for telescopic and telescopic axles resulting from said procedure
I lie.
La presente invención hace referencia, según se indica en el enunciado, a un proceso de fabricación de árboles telescópicos.The present invention makes reference, according to indicates in the statement, a process of making trees telescopic
De manera más concreta, la invención se refiere al proceso de fabricación de árboles telescópicos del tipo que comprenden un miembro interior tubular y un miembro tubular exterior parcialmente enchufados uno en otro, y obligados a mantenerse en una posición relativa -que corresponde a una determinada longitud del conjunto del árbol- con una determinada fuerza de rozamiento entre dichos miembros de valor preestablecido, que puede ser vencida por un esfuerzo axial de suficiente entidad, determinando el desplazamiento de un miembro con respecto al otro y por tanto, la reducción de aquella longitud.More specifically, the invention relates to to the manufacturing process of telescopic trees of the type that they comprise a tubular inner member and an outer tubular member partially plugged into each other, and forced to stay in one relative position -which corresponds to a certain length of the tree assembly - with a certain frictional force between said members of preset value, which can be defeated by an axial effort of sufficient entity, determining the displacement of one member with respect to the other and therefore the reduction of that length.
Los árboles telescópicos del expresado tipo, según es bien sabido, admiten una amplia gama de aplicaciones, la principal y más divulgada de las cuales es probablemente, la constitución de las columnas de dirección de vehículos automóviles.Telescopic trees of the expressed type, as is well known, they support a wide range of applications, the main and most widespread of which is probably the constitution of vehicle steering columns cars
En esta aplicación, en efecto, la posibilidad de que el árbol se contraiga ante un esfuerzo axial de suficiente entidad, que normalmente será provocado por un choque frontal, constituye un importantísimo factor de seguridad para el conductor del vehículo, evitando o atenuando las heridas -en muchas ocasiones mortales- que en otro caso le producirla el expresado árbol al desplazarse axialmente hacia su tórax, al no desplazarse el miembro interior tubular, respecto del miembro exterior tubular o viceversa.In this application, in fact, the possibility of that the tree is contracted before an axial effort of sufficient entity, which will normally be caused by a frontal crash, It is a very important driver safety factor of the vehicle, avoiding or mitigating wounds - many times mortal - that in another case the expressed tree will produce it to the move axially towards your thorax, as the limb does not move tubular interior, with respect to the tubular outer member or vice versa.
En la actualidad, los árboles telescópicos del tipo que nos ocupa se fabrican, de manera general, mediante la disposición, en las zonas de los dos miembros integrantes del árbol que deben permanecer enchufadas una en otra, de unas empaquetaduras o guarniciones de material plástico, que quedan interpuestas entre dichos miembros, evitando el contacto directo entre los mismos, determinando su correcto y exacto ajuste, y, de manera especial, engendrando una fuerza de rozamiento, cuya entidad puede preestablecerse con toda precisión, que se opone al desplazamiento de un miembro telescópico con respecto al otro, de manera que este desplazamiento y la consecuente variación de la longitud total del árbol, pueda únicamente producirse bajo un esfuerzo axial de valor mínimo predeterminado.At present, the telescopic trees of the type that concerns us are manufactured, in general, by arrangement, in the areas of the two members of the tree that must remain plugged into each other, of some gaskets or plastic material fittings, which are interposed between said members, avoiding direct contact between them, determining its correct and exact adjustment, and, in a special way, generating a frictional force, whose entity can preset with all precision, which opposes displacement of one telescopic member with respect to the other, so that this displacement and the consequent variation of the total length of the tree, can only occur under an axial effort of value default minimum.
También de manera general, en la actualidad las indicadas guarniciones o empaquetaduras de material plástico se obtienen en algunos casos por inyección directa de este material, en estado fluido. Después de haber sido inyectado el plástico en los alojamientos previstos en el eje tubular interior, este es ensamblado en el eje tubular exterior, de un modo controlado, comprobando su fuerza de introducción, y por lo tanto, la carga de deslizamiento que tendrá, mas tarde en el proceso de montaje en el vehículo, y en su funcionamiento general en el vehículo.Also in general, currently indicated fittings or gaskets of plastic material are obtained in some cases by direct injection of this material, in fluid state After the plastic has been injected into the housings provided on the inner tubular shaft, this is assembled on the outer tubular shaft, in a controlled way, checking its introductory force, and therefore, the burden of slip that you will have, later in the assembly process in the vehicle, and in its general operation in the vehicle.
Esto es así también, para los procesos de montaje que no hacen uso de la citada inyección, sino la interposición de anillos, previamente moldeados de material plástico u otro similar adecuado.This is also true for the processes of assembly that do not use the said injection, but the interposition of rings, previously molded of plastic material or other similar suitable.
La presente invención tiene por objeto un proceso añadido y posterior a la inyección del plástico, o montaje de anillo moldeado, y previo al montaje del eje interior en el exterior, que consiste en introducir un elemento en el interior del eje tubular interior, elemento que puede ser mecánico o hidráulico, que expanda las paredes de las áreas sobre las que se asientan los anillos, empujando así dichos anillos contra la pared interior de un elemento calibrado, dotándose así, de una rigidez torsional incrementada al conjunto de árbol telescópico fabricado.The present invention aims at a process added and after plastic injection, or assembly molded ring, and prior to mounting the inner shaft in the exterior, which consists of introducing an element inside the inner tubular shaft, element that can be mechanical or hydraulic, that expands the walls of the areas on which the rings, thus pushing said rings against the inner wall of a calibrated element, thus providing torsional stiffness increased to the telescopic shaft assembly manufactured.
Por lo demás, la esencialidad y las principales características y ventajas del proceso de fabricación de árboles telescópicos objeto de la invención, resultará más fácilmente comprensible a la vista de los dibujos adjuntos, a los que en lo sucesivo se referirá la explicación y en los que, en forma esquemática y, desde luego, sin carácter limitativo de ninguna clase, se ha representado un ejemplo concreto de realización práctica del mismo.For the rest, the essentiality and the main Features and advantages of the tree making process telescopic object of the invention, will be more easily understandable in view of the attached drawings, to which successive the explanation will be referred to and in which schematic and, of course, without limitation of any class, a concrete embodiment example has been represented practice of it.
Sigue a continuación una relación detallada de los principales elementos de la invención y que se identifican en las figuras con la aguda de los números siguientes: (10) árbol telescópico, (11) miembro telescópico interior, (12) alojamientos, (13) anillos, (14) miembro telescópico exterior, (15) herramienta, (16) anillo calibrado, (17) aros empujadores, (18) vástago interior, (19) camisa exterior, (20) rampas, (21) anillos, (22) cajas para anillos, (23) superficie lateral interior.Follow below a detailed relationship of the main elements of the invention and that are identified in the figures with the acute of the following numbers: (10) tree telescopic, (11) inner telescopic member, (12) housings, (13) rings, (14) outer telescopic member, (15) tool, (16) calibrated ring, (17) pusher rings, (18) inner rod, (19) outer jacket, (20) ramps, (21) rings, (22) boxes for rings, (23) inner side surface.
La figura nº 1 es un dibujo esquemático de un miembro telescópico interior (11) de un conjunto de árbol telescopio (10), previamente a la inyección del plástico en sus alojamientos (12) previstos, parcialmente seccionado.Figure 1 is a schematic drawing of a inner telescopic member (11) of a telescope tree assembly (10), prior to plastic injection into their housings (12) provided, partially sectioned.
La figura nº 2 es un dibujo esquemático de un eje interior (11) de un conjunto de árbol telescopio (10), mostrando los anillos inyectados o moldeados (13), en sus alojamientos (12) previstos para ello.Figure 2 is a schematic drawing of a inner shaft (11) of a telescope shaft assembly (10), showing injected or molded rings (13), in their housings (12) planned for it.
La figura nº 3 es una sección transversal parcial del eje interior (11) de un árbol telescópico (10), en el que se observa en su interior la herramienta (15) en su posición, preparada para expandir las áreas inyectadas de dicho eje interior de un árbol telescópico.Figure 3 is a cross section partial of the inner shaft (11) of a telescopic shaft (10), in the that the tool (15) is observed inside in its position, prepared to expand the injected areas of said inner axis of a telescopic tree.
La figura nº 4 muestra la herramienta (15) expandiendo las áreas inyectadas de un eje interior (11) de un árbol telescópico.Figure 4 shows the tool (15) expanding the injected areas of an inner shaft (11) of a tree telescopic.
Tal como se ha representado esquemáticamente en las figuras adjuntas, los elementos básicos integrantes del árbol telescópico de dirección (10) objeto de la presente invención son los siguientes:As schematically represented in the attached figures, the basic elements of the tree Telescopic steering (10) object of the present invention are the following:
- a)to)
- Un miembro telescópico interior, señalado en su conjunto con la referencia (11) de la figura nº 1, que adopta una estructura tubular, presentando una sección no circular, dentada o de otro modo, constante en toda su longitud, salvo en dos o más áreas o cajas (22), que presentan un diámetro exterior menor que el resto del miembro telescópico interior (11), y que serán utilizadas para ser rellenadas por los anillos no metálicos, inyectados o moldeados (13), tal y como puede verse en la figura nº 2, antes mencionados en la memoria descriptiva; yA inner telescopic member, marked as a whole with the reference (11) of figure 1, which adopts a structure tubular, presenting a non-circular section, serrated or other mode, constant throughout its length, except in two or more areas or boxes (22), which have a smaller outside diameter than the rest of the inner telescopic member (11), and which will be used for be filled by non-metallic rings, injected or molded (13), as can be seen in Figure 2, mentioned above in descriptive memory; Y
- b)b)
- un miembro telescópico exterior (14), no representado en las figuras, que adopta una estructura tubular y presenta sección no circular, dentada o de otro modo, en la que pueda quedar inscrita con holgura mínima la sección del miembro telescópico interior (11).a outer telescopic member (14), not shown in the figures, which adopts a tubular structure and presents a non-circular section, serrated or otherwise, in which it can be loosely registered minimum section of the inner telescopic member (11).
El proceso de fabricación objeto de la invención consiste básicamente en posicionar una herramienta expansora (15), que puede ser mecánica o bien hidráulica, interiormente en el miembro que posee los casquillos no metálicos de un árbol de dirección (10), en su recorrido adecuado, de modo que sus áreas empujadoras (17), según puede verse en la figura nº 3, presionen radialmente en la parte interior del área adecuada, de la superficie lateral interior del miembro telescópico interior (11).The manufacturing process object of the invention basically consists of positioning an expander tool (15), which can be mechanical or hydraulic, internally in the member that owns the non-metallic bushings of a tree direction (10), in its proper path, so that its areas pushers (17), as can be seen in figure 3, press radially on the inside of the appropriate surface area inner side of the inner telescopic member (11).
Esta presión radial ejercida por la herramienta expansora (15) se consigue por la transformación del movimiento axial del miembro interior (11) en la figura nº 4, dentro de su camisa exterior (19) de la figura nº 4, que mediante unas rampas (20), mostradas en la figura nº 3, aplica una fuerza radial controlable sobre el interior de las áreas o cajas (22) de alojamiento de los anillos (21) de la figura nº 4.This radial pressure exerted by the tool expander (15) is achieved by the transformation of the movement axial of the inner member (11) in figure 4, within its outer jacket (19) of figure 4, which by means of ramps (20), shown in Figure 3, applies a radial force controllable inside the areas or boxes (22) of ring housing (21) of figure 4.
Este ajuste puede ser medido y preciso mediante el mayor avance del miembro interior (11) en la figura nº 4, dependiendo de las diferentes tolerancias de fabricación de los componentes del conjunto: miembro interior (11), cajas para anillos (22), anillos (13), etc.This setting can be measured and accurate by the greatest advance of the inner member (11) in figure 4, depending on the different manufacturing tolerances of the set components: inner member (11), ring boxes (22), rings (13), etc.
Asimismo, la carga de deslizamiento resultante de este ajuste entre el miembro telescópico interior (11) y el miembro telescópico exterior (14, no mostrado), puede ser medida de un modo preciso mediante el deslizamiento de un anillo de ajuste (16), mientras se consigue el ajuste radial provocado por el avance del miembro telescópico (11), consiguiendo de ese modo una carga de deslizamiento controlada en cada uno de los conjuntos, independientemente de las diferentes tolerancias de fabricación de sus componentes.Also, the resulting sliding load of this adjustment between the inner telescopic member (11) and the outer telescopic member (14, not shown), can be measured by a precise mode by sliding an adjustment ring (16), while the radial adjustment caused by the advance is achieved of the telescopic member (11), thereby achieving a load of controlled slip in each of the sets, regardless of the different manufacturing tolerances of it's components.
Esta expansión de las cajas (22) con material no metálico asegura un exacto ajuste entre los miembros interior (11) y exterior (14, no mostrado) del árbol de dirección (10), eliminando a su vez ruido y vibraciones, y desarrollando una cierta acción de frenado que se opone a los movimientos relativos de cada uno de dichos elementos con respecto al otro.This expansion of the boxes (22) with non-material metallic ensures an exact fit between the inner members (11) and outside (14, not shown) of the steering shaft (10), removing turn noise and vibrations, and developing a certain action of braking that opposes the relative movements of each of these elements with respect to the other.
Este movimiento de frenado o de ajuste puede ser, como se ha dicho previamente, ajustado de un modo preciso en cada uno de los conjuntos.This braking or adjustment movement can be, as previously stated, adjusted precisely in Each of the sets.
La presente invención admite, como es lógico, numerosas posibilidades de variación que, al no afectar a su esencialidad, deberán considerarse integramente comprendidas en el ámbito de la misma.The present invention admits, of course, numerous possibilities of variation that, not affecting its essentiality, should be considered as fully included in the scope of it.
Descrita suficientemente la presente invención, en correspondencia con las figuras anexas, fácil es comprender que podrán realizarse en la misma cualesquiera modificaciones de detalle que se estimen convenientes, siempre y cuando no se altere la esencia de la invención que queda resumido en las siguientes reivindicaciones.Sufficiently described the present invention, in correspondence with the attached figures, it is easy to understand that any detail modifications may be made therein that are considered convenient, as long as the essence of the invention that is summarized in the following claims.
Claims (6)
elementos expansores en el interior de la herramienta.3. Method of manufacturing a telescopic shaft according to claim 1, characterized in that the radial expansion of the plastic elements is carried out by a hydraulic system provided with
expander elements inside the tool.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200931300A ES2381826B1 (en) | 2010-02-03 | 2010-02-03 | MANUFACTURING PROCEDURE OF A TELESCOPIC TREE AND TELESCOPIC TREE RESULTING FROM THIS PROCEDURE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200931300A ES2381826B1 (en) | 2010-02-03 | 2010-02-03 | MANUFACTURING PROCEDURE OF A TELESCOPIC TREE AND TELESCOPIC TREE RESULTING FROM THIS PROCEDURE |
Publications (2)
Publication Number | Publication Date |
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ES2381826A1 true ES2381826A1 (en) | 2012-06-01 |
ES2381826B1 ES2381826B1 (en) | 2013-05-27 |
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ES200931300A Active ES2381826B1 (en) | 2010-02-03 | 2010-02-03 | MANUFACTURING PROCEDURE OF A TELESCOPIC TREE AND TELESCOPIC TREE RESULTING FROM THIS PROCEDURE |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016203625B3 (en) | 2016-03-07 | 2017-03-30 | Thyssenkrupp Ag | Method for producing a variable length steering shaft and injection molding apparatus for carrying out the method |
US11390315B2 (en) | 2016-03-07 | 2022-07-19 | Thyssenkrupp Presta Ag | Toothed shafts for installation into hollow shafts with internal toothings in telescopic fashion |
US11697448B2 (en) | 2019-04-23 | 2023-07-11 | Thyssenkrupp Presta Ag | Length-adjustable steering shaft for a motor vehicle, and profiled sleeve for a steering shaft |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5836761A (en) * | 1981-08-28 | 1983-03-03 | Honda Motor Co Ltd | Steering device for vehicle |
DE19504036C1 (en) * | 1995-02-08 | 1996-06-27 | Lemfoerder Metallwaren Ag | Safety steering shaft |
GB2312266A (en) * | 1996-04-18 | 1997-10-22 | Daumal Castellon Melchor | Telescopic shaft for a steering column |
DE10002620A1 (en) * | 2000-01-22 | 2001-07-26 | Volkswagen Ag | Push-fit bond between two parts of steering column has initial assembly without free play between their contact surfaces and inner expansion to give plastics distortion for durable friction grip bond |
-
2010
- 2010-02-03 ES ES200931300A patent/ES2381826B1/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5836761A (en) * | 1981-08-28 | 1983-03-03 | Honda Motor Co Ltd | Steering device for vehicle |
DE19504036C1 (en) * | 1995-02-08 | 1996-06-27 | Lemfoerder Metallwaren Ag | Safety steering shaft |
GB2312266A (en) * | 1996-04-18 | 1997-10-22 | Daumal Castellon Melchor | Telescopic shaft for a steering column |
DE10002620A1 (en) * | 2000-01-22 | 2001-07-26 | Volkswagen Ag | Push-fit bond between two parts of steering column has initial assembly without free play between their contact surfaces and inner expansion to give plastics distortion for durable friction grip bond |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016203625B3 (en) | 2016-03-07 | 2017-03-30 | Thyssenkrupp Ag | Method for producing a variable length steering shaft and injection molding apparatus for carrying out the method |
WO2017153306A1 (en) | 2016-03-07 | 2017-09-14 | Thyssenkrupp Presta Ag | Method for producing a variable-length steering shaft and injection molding device for carrying out the method |
US10919560B2 (en) | 2016-03-07 | 2021-02-16 | Thyssenkrupp Presta Ag | Method for producing a variable-length steering shaft |
US11390315B2 (en) | 2016-03-07 | 2022-07-19 | Thyssenkrupp Presta Ag | Toothed shafts for installation into hollow shafts with internal toothings in telescopic fashion |
US11697448B2 (en) | 2019-04-23 | 2023-07-11 | Thyssenkrupp Presta Ag | Length-adjustable steering shaft for a motor vehicle, and profiled sleeve for a steering shaft |
Also Published As
Publication number | Publication date |
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ES2381826B1 (en) | 2013-05-27 |
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