WO1995030839A1 - Self-adjustment device for adjusting the length of controlled cables - Google Patents
Self-adjustment device for adjusting the length of controlled cables Download PDFInfo
- Publication number
- WO1995030839A1 WO1995030839A1 PCT/ES1995/000037 ES9500037W WO9530839A1 WO 1995030839 A1 WO1995030839 A1 WO 1995030839A1 ES 9500037 W ES9500037 W ES 9500037W WO 9530839 A1 WO9530839 A1 WO 9530839A1
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- WO
- WIPO (PCT)
- Prior art keywords
- main body
- self
- rod
- adjusting device
- regulating rod
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C1/00—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
- F16C1/10—Means for transmitting linear movement in a flexible sheathing, e.g. "Bowden-mechanisms"
- F16C1/22—Adjusting; Compensating length
- F16C1/226—Adjusting; Compensating length by adjusting the effective length of the sheathing
Definitions
- a subject of the present invention is a self-adjusting device for the length of control cables, of which they are commonly used in industry and more particularly in the automobile industry for adjusting the length of sheathed steel cables.
- control cables comprise, in general, a steel cable provided with a sheath and at both ends of a respective terminal for coupling the cable with a control means and with a device to be controlled, so that both are linked.
- control cables among others, the one that normally links the accelerator pedal with the corresponding mechanism of the motor carburetor of a motor vehicle is mentioned.
- the control cables such as the one mentioned above incorporate, and mounted at one of their ends, a self-adjusting device of the length of the sheathed steel cable portion.
- Said self-adjusting device has the purpose, once the control cable is mounted on the motor vehicle, to absorb, for each particular vehicle, the tolerance which, in terms of length, requires the portion of the sheathed steel cable, and so as to achieve adequate transmission of forces and movements between the control means and the device to be controlled.
- known embodiments of self-adjusting devices comprise a main body to which a regulating rod is coaxially coupled, both elements, main body and rod, being traversed by the steel cable devoid of sheath; generally, the main body is anchored to a fixed point of the structure of the vehicle and comprises retention means that fix the position of the rod, while the rod, which is attached to one of the ends of the sheath of the steel cable, can be slid through the main body to the extent that it requires adjustment of the length of the sheathed steel cable portion.
- the action on said control means which in the aforementioned application example consists in moving the accelerator pedal to the position of maximum acceleration, causes a longitudinal request of the control cable sheath that drives the rod into the main body to the extent that said longitudinal request is matched and the reaction of the main body retention means that permanently act on the regulating rod.
- said adjustment operation is performed only during the installation of the control cable in the vehicle, since after said adjustment the control cable is arranged in the intended service conditions.
- self-adjusting devices such as the one described above are structured so that, in those cases in which the self-adjusting device is to be subjected to high temperatures, such as when the self-adjusting device is located at a relatively short distance from the vehicle engine.
- the action of the main body retention means on the regulating rod is affected, which under certain circumstances may lead to improper operation of the self-adjusting device.
- a self-adjusting device of the length of control cables of a new structure is disclosed.
- the self-adjusting device object of the invention is also especially indicated in all those cases in which the control cable that incorporates it follows a difficult route, that is to say, composed of a large number of curved portions.
- the self-adjusting device object of the invention comprises the known elements described below.
- a main body which is preferably obtained from aluminum material, generally elongated cylindrical that is longitudinally traversed through a centered hole through which the steel cable of the control cable is slid, loosely, the main body having one of its middle ends for anchoring to a fixed point, which means have a configuration that is given by the needs of each specific application case.
- a regulating rod which is preferably obtained from plastic material, generally elongated cylindrically arranged coaxially with respect to the main body, longitudinally and centrally having a through hole through which said steel cable can be slid, and having one of its middle ends for its firm connection with the corresponding end of the control cable sheath and so that both, rod and sheath, are integral.
- retaining means which, in addition to the main body and the regulating rod, act permanently fixing the position of the rod relative to the main body.
- the self-adjusting device object of the invention is characterized in that in the regulating rod and in its longitudinal through hole, a respective longitudinal portion is distinguished at both ends, a first end portion is sized to contain the portion of the main body that is longitudinally opposite to that comprising said means of anchor, and the other end portion is sized to receive the corresponding end of the control cable sheath tightly.
- the retention means comprise, in the main and longitudinal body and externally in its opposite portion to which it comprises the anchoring means, a thread filler, and in the regulating rod and coupled in solidarity at the end that is the receiver of the main body, a fixing bushing obtained from high flexibility material, which bushing comprises guiding means that allow the rod to be slid in both directions by threading said guide means in the threaded thread of the main body, and that the rod can be slid in the direction in which it houses the main body more by successive and repeated double elastic deformations of said guide means.
- Another feature of the self-adjusting device object of the invention consists in the fact that the threaded thread of the main body has a transverse profile in a sawtooth, the thread side being orthogonally aligned with respect to the axis of the main body arranged opposite with respect to the anchoring means of said main body.
- the fixing sleeve which has a generally cylindrical shape, has, throughout its length, a through groove, and at one of its ends, the one that is contiguous at the end of the regulating rod that receives the main body, the guide means comprising a plurality of longitudinally regularly extended longitudinal projections whose respective outer sides are oriented towards the longitudinal axis of the bushing, said outer sides being dimensioned in correspondence with the threaded thread of the main body defining a nut.
- Another feature of the self-adjusting device object of the invention consists in the fact that the number of longitudinal projections of the fixing sleeve is four.
- Another feature of the self-adjusting device object of the invention consists in the fact that the coupling of the fixing bushing with the regulating rod is carried out by means of a tightening bushing.
- Figure 1 is a schematic representation of the self-adjusting device according to the invention mounted on a fixed point £ of the structure of a motor vehicle.
- Figure 2 is a side view of the self-adjusting device according to the invention.
- Figure 3 is a longitudinal sectional view of the self-adjusting device according to the invention as it is supplied by origin.
- Figure 4 is a longitudinal sectional view of the self-adjusting device according to the invention mounted at a fixed point or F of the structure of a motor vehicle once the length of the sheathed cable portion is adjusted.
- Figure 5 is a perspective view of the fixing sleeve of the self-adjusting device object of the invention.
- Figure 6 is the view corresponding to section VI-VI obtained from Figure 4.
- the exemplary embodiment of the self-adjusting device D of the length of control cables object of the invention shown in the figures of the drawing sheets is mounted, as shown in Figure 1, on the control cable C that links the pedal 1 with the corresponding mechanism 2 of the motor carburetor of a motor vehicle.
- Such an example of the use of the self-adjusting device D object of the invention is given only by way of title and without this implying any limitation as to its scope of application, since such an example of use is exclusively intended to achieve this description a greater clarity of exposure.
- Figures 1 to 4 show how the device self - adjusting D comprises the main body 3, which is obtained preferably from material alumi ⁇ child, the regulating rod 4, which is obtained preferably from plastic material, and MR retention means.
- Figures 3 and 4 show in section how the main body 3 has an elongated general cylindrical shape in which the through hole 5 has been practiced axially and centered through which the steel cable 6 constituting the control cable can be slid C.
- the main body 3 has, at one of its ends, the one indicated as E_C in Figures 1 to 4, the anchoring means MA that are intended for the assembly of the self-adjusting device D at a fixed point £, indicated schematically in the Figures 1 and 4, functionally adequate of the structure of the motor vehicle.
- the anchoring means MA comprise the peripheral thickening 7 of circular contour and the joint of flexible material 8 of generally cylindrical shape having, axially and centrally, the through hole 9, and peripherally slot 10 as shown in Figures 3 and 4; the through hole 9 is sized so that, by elastic deformation, the gasket 8 presses on the main body 3, and the groove 10 is sized so that, also by elastic deformation, it laterally presses on the wall 11 constituting the fixed point o F, thus, the main body 3, and consequently the device D, are anchored to the fixed point £.
- the anchoring means MA described above are given only by way of exemplary example since it is understood that they can adopt any other configuration suitable to each specific case of application without affecting the essentiality of the invention.
- Figures 3 and 4 show in section how the regulating rod 4 has a generally elongated cylindrical shape and is crossed, axially and centrally, by the hole 12 in which two end portions are indicated longitudinally indicated as 12a and 12p; the end portion 12a is sized to receive and accommodate the longitudinal portion 13 of the main body 3 which is opposite the end E_C comprising the anchoring means MA, and the end portion 12p is sized to receive the CD end of the cable portion 14 sheathed with the control cable C.
- Figures 2 to 4 show how the retaining means MR comprise, in the main body 3 and its longitudinal portion 13, the threaded thread 17, and in the regulating rod 4 and at its receiving end EC 'of said longitudinal portion 13 , the fixing sleeve 18, shown in perspective in Figure 5, which is preferably obtained from high flexibility steel sheet.
- the enlarged detail A of Figure 4 shows how thread thread 17 has a transverse profile of sawtooth in the side 19 of the thread of orthogonally arranged threads with respect to the longitudinal axis of the main body 3 is dis ⁇ since enfrentadêt to the anchoring means MA of the end CE of said body 3.
- the fixing sleeve 18 It is generally cylindrical in shape and is firmly coupled to the regulating rod 4 by means of the clamping sleeve 20 which, by compression of the fixing sleeve 18 on the rod 4, prevents the fixing sleeve 18 from being able, under normal conditions of use , modify its position with respect to the rod 4, at the same time, the tightening bush 20 acts as a structural reinforcement of the rod 4 preventing its deformation.
- Figure 5 shows how the fixing bushing 18 has the entire length of the through groove 21 whose purpose is to give the bushing 18 a certain transverse flexibility in order to facilitate its coupling with the regulating rod 4 in the corresponding phase for mounting at the origin of the self-adjusting device D object of the invention.
- the enlarged detail A of Figure 4 shows how said outer sides 23 are sized in correspondence with the threaded thread 17 of the main body 3, so that, as Figure 6 shows in section, once the regulating rod 4 and the main body 3 are coupled, said outer sides 23 define a nut.
- the self-adjusting device D object of the invention which is described as an example of embodiment is mounted on the control cable C that links the accelerator pedal 1 with the mechanism 2 of the motor carburetor of a motor vehicle , the length of the cable portion 14 being sheathed 6-16 which must be adjusted during the assembly of the control cable C in the vehicle.
- Figure 3 shows how the self-adjusting device D is originally supplied, under these conditions, the main body 3 protrudes sharply with respect to the regulating rod 4, and the action of the fixing sleeve 18, in particular the engagement of the outer sides 23 of the angled projections 22 with the threaded thread 17 of the main body 3, prevent the main body 3 from modifying its position with respect to the rod during transport and handling of the self-adjusting device D prior to its assembly in the vehicle.
- the sawtooth configuration of the filleting 17 of the main body 3 with the side 19 of the orthogonal thread facing the anchoring means MA prevents the adjustment rod 4, by means of the outer sides 23 engaged in the threaded 17, can modify its position with respect to the main body 3.
- the control cable C is arranged in the service conditions with the length of the portion 14 of cable wrapped 6-16 adjusted.
- the regulating rod 4 cannot modify its position with respect to the main body 3, firstly, by said action of the outer sides 23 of the guide means MG on the threaded rose 17 of the body main 3, and secondly, by the reaction of the sheath 6 of the control cable C which prevents the regulating rod 4 from being able to unscrew due to the trepidations of the conditions of vehicle running.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Mechanical Engineering (AREA)
- Flexible Shafts (AREA)
- Mechanical Control Devices (AREA)
Abstract
The self-adjustment device (D) comprises a main body (3) provided with means (MA) for its anchoring to a fixed point (F), a regulation rod (4) provided with means (12p, 15) for its securing to one extremity (CD) of the sheath (16) of the steel cable (6) and wherein is partially housed the main body (3), and retention means (MR). The retention means (MR) comprise, in the main body (3), a threading (17) with a sawtooth profile, and in the rod (4), a fixing sleeve (18) provided with guiding means (MG) in order to provide for the displacement of the rod (4) in both directions by threading, and providing for its displacement in the direction where the rod (4) receives to a major extent the main body (3) by elastic deformation of the guiding means (MG). Application to the car industry.
Description
D E S C R I P C I Ó N "DISPOSITIVO AUTOAJUSTADOR DE LA LONGITUD DE CABLES DE MANDO" D E S C R I P C I Ó N "SELF-ADJUSTMENT DEVICE FOR CONTROL CABLE LENGTH"
Sector técnico de la invención.Technical sector of the invention.
Tiene por objeto la presente invención un disposi¬ tivo autoajustador de la longitud de cables de mando, de los que son habitualmente utilizados en la industria y más particularmente en la industria del automóvil para el ajuste de la longitud de cables de acero enfundados.A subject of the present invention is a self-adjusting device for the length of control cables, of which they are commonly used in industry and more particularly in the automobile industry for adjusting the length of sheathed steel cables.
Antecedentes de la invención.Background of the invention.
Como es conocido, los citados cables de mando comprenden, en general , un cable de acero provisto de una funda y en sus ambos extremos de un respectivo terminal para el acoplamiento del cable con un medio de mando y con un dispositivo a controlar, de modo que ambos quedan enlazados. Como ejemplo de aplicación de tales cables de mando cabe citar, entre otros, el que normalmente enlaza el pedal del acelerador con el correspondiente mecanismo del carburador del motor de un vehículo automóvil . Habi ual ente, los cables de mando como el antes citado incorporan de origen, y montado en uno de sus extremos, un dispositivo autoajustador de la longitud de la porción de cable de acero enfundado.As is known, the said control cables comprise, in general, a steel cable provided with a sheath and at both ends of a respective terminal for coupling the cable with a control means and with a device to be controlled, so that both are linked. As an example of application of such control cables, among others, the one that normally links the accelerator pedal with the corresponding mechanism of the motor carburetor of a motor vehicle is mentioned. Usually, the control cables such as the one mentioned above incorporate, and mounted at one of their ends, a self-adjusting device of the length of the sheathed steel cable portion.
Dicho dispositivo autoajustador tiene por objeto, una vez montado el cable de mando en el vehículo automó¬ vil, absorber, para cada vehículo en particular, la tolerancia que en cuanto a longitud precisa la porción de cable de acero enfundado, y ello a fin de conseguir una adecuada transmisión de fuerzas y movimientos entre el medio de mando y el dispositivo a controlar. En síntesis, las realizaciones conocidas de dispositivos autoajustadores comprenden un cuerpo principal al que
está acoplado coaxialmente un vastago de regulación, estando ambos elementos, cuerpo principal y vastago, atravesados por el cable de acero desprovisto de funda; generalmente, el cuerpo principal está anclado a un punto fijo de la estructura del vehículo y comprende medios de retención que fijan la posición del vastago, mientras que el vastago, que está unido a uno de los extremos de la funda del cable de acero, puede ser deslizado a través del cuerpo principal en la medida que requiere el ajuste de la longitud de la porción de cable de acero enfundado.Said self-adjusting device has the purpose, once the control cable is mounted on the motor vehicle, to absorb, for each particular vehicle, the tolerance which, in terms of length, requires the portion of the sheathed steel cable, and so as to achieve adequate transmission of forces and movements between the control means and the device to be controlled. In summary, known embodiments of self-adjusting devices comprise a main body to which a regulating rod is coaxially coupled, both elements, main body and rod, being traversed by the steel cable devoid of sheath; generally, the main body is anchored to a fixed point of the structure of the vehicle and comprises retention means that fix the position of the rod, while the rod, which is attached to one of the ends of the sheath of the steel cable, can be slid through the main body to the extent that it requires adjustment of the length of the sheathed steel cable portion.
Las realizaciones conocidas de dispositivos autoa- justadores como los antes descritos permiten realizar el ajuste de la longitud de la porción de cable enfundado durante el montaje del cable de mando en el vehículo. De origen, el dispositivo autoajustador incorporado al cable de mando se suministra con el vastago de regula¬ ción sobresaliendo del cuerpo principal. Una vez montado el cable de mando en el vehículo automóvil , es decir, con el dispositivo autoajustador anclado a un punto fijo y los terminales de conexión del cable de acero unidos al medio de mando y al dispositivo a controlar respec¬ tivamente, la acción sobre dicho medio de mando, que en el antes citado ejemplo de aplicación consiste en desplazar el pedal del acelerador hasta la posición de máxima aceleración, provoca una solicitación longitudi¬ nal de la funda del cable de mando que impulsa al vastago hacia el interior del cuerpo principal en la medida en la que se igualan dicha solicitación longitu¬ dinal y la reacción de los medios de retención del cuerpo principal que, permanentemente, actúan sobre el vastago de regulación. De este modo, por variación de la longitud de la porción de vastago que sobresale del cuerpo principal, queda ajustada la longitud de la
porción de cable enfundado del cable de mando. Se com¬ prende que dicha operación de ajuste se realiza única¬ mente durante el montaje del cable de mando en el vehículo, ya que después de dicho ajuste el cable de mando queda dispuesto en las condiciones de servicio previstas.Known embodiments of self-adjusting devices such as those described above allow adjustment of the length of the sheathed cable portion during the assembly of the control cable in the vehicle. Originally, the self-adjusting device incorporated into the control cable is supplied with the control rod protruding from the main body. Once the control cable is mounted on the motor vehicle, that is, with the self-adjusting device anchored to a fixed point and the connection terminals of the steel cable connected to the control means and the device to be controlled respectively, the action on said control means, which in the aforementioned application example consists in moving the accelerator pedal to the position of maximum acceleration, causes a longitudinal request of the control cable sheath that drives the rod into the main body to the extent that said longitudinal request is matched and the reaction of the main body retention means that permanently act on the regulating rod. In this way, by varying the length of the rod portion that protrudes from the main body, the length of the sheathed cable portion of the control cable. It is understood that said adjustment operation is performed only during the installation of the control cable in the vehicle, since after said adjustment the control cable is arranged in the intended service conditions.
Como ejemplo de realización conocido de dispositivo autoajustador, cabe remarcar el dispositivo dado a conocer por la patente española No. 9202141 que, además de los elementos antes descritos, aporta entre otros elementos innovadores unos medios de retención del vastago de regulación consistentes en dos extensiones longitudi ales del cuerpo principal dotadas de un respectivo fileteado de retención, cuales extensiones están enlazadas concéntricamente mediante un anillo circular de apriete y, permanentemente, presionan por reacción elástica sobre un correspondiente fileteado del vastago de regulación, fijando de este modo la posición alcanzada por el vastago respecto del cuerpo principal .As a known embodiment of a self-adjusting device, it is worth noting the device disclosed by Spanish patent No. 9202141 which, in addition to the elements described above, provides, among other innovative elements, means for retaining the regulating rod consisting of two length extensions. ales of the main body provided with a respective retention thread, which extensions are concentrically linked by means of a circular clamping ring and, permanently, press by elastic reaction on a corresponding filleting of the regulating rod, thereby fixing the position reached by the rod Regarding the main body.
En general, los dispositivos autoajustadores como el antes descritos están estructurados de modo que, en aquellos casos en que el dispositivo autoajustador ha de trabajar sometido a elevadas temperaturas, como por ejemplo cuando el dispositivo autoajustador es emplazado a relativamente reducida distancia del motor del vehícu¬ lo, la acción de los medios de retención del cuerpo principal sobre el vastago de regulación queda afectada, lo que bajo ciertas circunstancias puede dar lugar a un inadecuado funcionamiento del dispositivo autoajustador.In general, self-adjusting devices such as the one described above are structured so that, in those cases in which the self-adjusting device is to be subjected to high temperatures, such as when the self-adjusting device is located at a relatively short distance from the vehicle engine. Thus, the action of the main body retention means on the regulating rod is affected, which under certain circumstances may lead to improper operation of the self-adjusting device.
Explicación de la invención.Explanation of the invention.
Con objeto de aportar una solución al problema antes descrito que plantean las realizaciones conocidas
de dispositivos autoajustadoreε cuando han de trabajar sometidos a elevadas temperaturas, se da a conocer un dispositivo autoajustador de la longitud de cables de mando de nueva estructura. El dispositivo autoajustador objeto de la invención es además especialmente indicado en todos aquellos casos en los que el cable de mando que lo incorpora sigue un recorrido difícil , es decir, compuesto por un elevado número de porciones curvas.In order to provide a solution to the problem described above posed by known embodiments of self-adjusting devices when working under high temperatures, a self-adjusting device of the length of control cables of a new structure is disclosed. The self-adjusting device object of the invention is also especially indicated in all those cases in which the control cable that incorporates it follows a difficult route, that is to say, composed of a large number of curved portions.
El dispositivo autoajustador objeto de la invención comprende los elementos conocidos que se describen a continuación. Un cuerpo principal , que es obtenido de preferencia a partir de material de aluminio, de forma general cilindrica alargada que es atravesado longitudi- nalmente por un orificio centrado a través del cual quede ser deslizado, holgadamente, el cable de acero del cable de mando, teniendo el cuerpo principal en uno de sus extremos medios para su anclaje a un punto fijo, cuales medios tienen una configuración que viene dada por las necesidades que presente cada caso concreto de aplicación. Un vastago de regulación, que es obtenido de preferencia a partir de material plástico, de forma general cilindrica alargada dispuesto coaxialmente respecto del cuerpo principal, teniendo longitudinal y centradamente un orificio pasante a través del cual puede ser deslizado dicho cable de acero, y teniendo en uno de sus extremos medios para su firme unión con el correspondiente extremo de la funda del cable de mando y de modo que ambos, vastago y funda, son solidarios. Y, medios de retención que, dispuestos complementariamente en el cuerpo principal y en el vastago de regulación, actúan permanentemente fijando la posición del vastago respecto del cuerpo principal.The self-adjusting device object of the invention comprises the known elements described below. A main body, which is preferably obtained from aluminum material, generally elongated cylindrical that is longitudinally traversed through a centered hole through which the steel cable of the control cable is slid, loosely, the main body having one of its middle ends for anchoring to a fixed point, which means have a configuration that is given by the needs of each specific application case. A regulating rod, which is preferably obtained from plastic material, generally elongated cylindrically arranged coaxially with respect to the main body, longitudinally and centrally having a through hole through which said steel cable can be slid, and having one of its middle ends for its firm connection with the corresponding end of the control cable sheath and so that both, rod and sheath, are integral. And, retaining means which, in addition to the main body and the regulating rod, act permanently fixing the position of the rod relative to the main body.
El dispositivo autoajustador objeto de la invención
se caracteriza porque en el vastago de regulación y en su orificio longitudinal pasante, se distinguen en sus ambos extremos una respectiva porción longitudinal, una primera porción extrema está dimensionada para contener la porción del cuerpo principal que es longitudinalmente opuesta a la que comprende dichos medios de anclaje, y la otra porción extrema está dimensionada para recibir con apriete el correspondiente extremo de la funda del cable de mando.The self-adjusting device object of the invention it is characterized in that in the regulating rod and in its longitudinal through hole, a respective longitudinal portion is distinguished at both ends, a first end portion is sized to contain the portion of the main body that is longitudinally opposite to that comprising said means of anchor, and the other end portion is sized to receive the corresponding end of the control cable sheath tightly.
Otra característica del dispositivo autoajustador objeto de la invención consiste en el hecho de que los medios de retención comprenden, en el cuerpo principal y longitudinal y exteriormente en su porción opuesta a la que comprende los medios de anclaje, un fileteado de rosca, y en el vastago de regulación y acoplado solida¬ riamente en el extremo que es receptor del cuerpo principal , un casquillo de fijación obtenido a partir de material de elevada flexibilidad, cual casquillo com- prende medios de guia que permiten que el vastago pueda ser deslizado en ambos sentidos por roscado de dichos medios de guia en el fileteado de rosca del cuerpo principal, y que el vastago pueda ser deslizado en el sentido en el que éste aloja en mayor medida al cuerpo principal por sucesivas y repetidas dobles deformaciones elásticas de dichos medios de guia.Another characteristic of the self-adjusting device object of the invention consists in the fact that the retention means comprise, in the main and longitudinal body and externally in its opposite portion to which it comprises the anchoring means, a thread filler, and in the regulating rod and coupled in solidarity at the end that is the receiver of the main body, a fixing bushing obtained from high flexibility material, which bushing comprises guiding means that allow the rod to be slid in both directions by threading said guide means in the threaded thread of the main body, and that the rod can be slid in the direction in which it houses the main body more by successive and repeated double elastic deformations of said guide means.
Otra característica del dispositivo autoajustador objeto de la invención consiste en el hecho de que el fileteado de rosca del cuerpo principal tiene un perfil transversal en diente de sierra, estando el lado del hilo de rosca que guarda ortogonal idad respecto del eje del cuerpo principal dispuesto enfrentadamente respecto de los medios de anclaje de dicho cuerpo principal.
Otra característica del dispositivo autoajustador objeto de la invención consiste en el hecho de que el casquillo de fijación, que tiene forma general cilindri¬ ca, tiene, en toda su longitud, una ranura pasante, y en uno de sus extremos, el que es contiguo al extremo del vastago de regulación que recibe al cuerpo principal, los medios de guia que comprenden una pluralidad de salientes longitudinales regularmente distribuidos de forma general acodada cuyos respectivos lados exteriores están orientados hacia el eje longitudinal del casquil- lo, estando dimensíonados dichos lados exteriores en correspondencia con el fileteado de rosca del cuerpo principal definiendo una tuerca.Another feature of the self-adjusting device object of the invention consists in the fact that the threaded thread of the main body has a transverse profile in a sawtooth, the thread side being orthogonally aligned with respect to the axis of the main body arranged opposite with respect to the anchoring means of said main body. Another feature of the self-adjusting device object of the invention consists in the fact that the fixing sleeve, which has a generally cylindrical shape, has, throughout its length, a through groove, and at one of its ends, the one that is contiguous at the end of the regulating rod that receives the main body, the guide means comprising a plurality of longitudinally regularly extended longitudinal projections whose respective outer sides are oriented towards the longitudinal axis of the bushing, said outer sides being dimensioned in correspondence with the threaded thread of the main body defining a nut.
Otra característica del dispositivo autoajustador objeto de la invención consiste en el hecho de que el numero de salientes longitudinales del casquillo de fijación es de cuatro.Another feature of the self-adjusting device object of the invention consists in the fact that the number of longitudinal projections of the fixing sleeve is four.
Otra característica del dispositivo autoajustador objeto de la invención consiste en el hecho de que el acoplamiento del casquillo de fijación con el vastago de regulación se realiza por medio de un casquillo de apriete.Another feature of the self-adjusting device object of the invention consists in the fact that the coupling of the fixing bushing with the regulating rod is carried out by means of a tightening bushing.
Breve descripción de los dibujos.Brief description of the drawings.
En las hojas de dibujos de la presente memoria aparece representado el dispositivo autoajustador de la longitud de cables de mando según la invención. En dichos dibujos:The self-adjusting device for the length of control cables according to the invention is represented on the drawing sheets of the present specification. In these drawings:
La Figura 1, es una representación esquemática del dispositivo autoajustador según la invención montado en un punto fijo £ de la estructura de un vehículo automó- vil.
La Figura 2, es una vista de lado del dispositivo autoajustador según la invención.Figure 1 is a schematic representation of the self-adjusting device according to the invention mounted on a fixed point £ of the structure of a motor vehicle. Figure 2 is a side view of the self-adjusting device according to the invention.
La Figura 3, es una vista en sección longitudinal del dispositivo autoajustador según la invención tal como es suministrado de origen.Figure 3 is a longitudinal sectional view of the self-adjusting device according to the invention as it is supplied by origin.
La Figura 4, es una vista en sección longitudinal del dispositivo autoajustador según la invención montado en un punto fi o F de la estructura de un vehículo automó¬ vil una vez ajustada la longitud de la porción de cable enfundado.Figure 4 is a longitudinal sectional view of the self-adjusting device according to the invention mounted at a fixed point or F of the structure of a motor vehicle once the length of the sheathed cable portion is adjusted.
La Figura 5, es una vista en perspectiva del casquillo de fijación del dispositivo autoajustador objeto de la invención .Figure 5 is a perspective view of the fixing sleeve of the self-adjusting device object of the invention.
La Figura 6, es la vista correspondiente a la sección VI-VI obtenida de la Figura 4.Figure 6 is the view corresponding to section VI-VI obtained from Figure 4.
Descripción detallada del ejemplo de realización.Detailed description of the embodiment example.
El ejemplo de realización del dispositivo autoajus¬ tador D de la longitud de cables de mando objeto de la invención mostrado en las figuras de las hojas de dibujos, está montado, como muestra la Figura 1 , en el cable de mando C que enlaza el pedal 1 con el corres¬ pondiente mecanismo 2 del carburador del motor de un vehículo automóvil. Tal ejemplo de uso del dispositivo autoajustador D objeto de la invención es dado únicamen¬ te a titulo oπentativo y sin que ello suponga limita¬ ción alguna en cuanto a su ámbito de aplicación, ya que tal ejemplo de uso tiene exclusivamente la finalidad de lograr en esta descripción una mayor claridad de exposi- ción.
Las Figuras 1 a 4 muestran como el dispositivo autoajustador D comprende el cuerpo principal 3, que es obtenido de preferencia a partir de material de alumi¬ nio, el vastago de regulación 4, que es obtenido de preferencia a partir de material plástico, y los medios de retención MR.The exemplary embodiment of the self-adjusting device D of the length of control cables object of the invention shown in the figures of the drawing sheets is mounted, as shown in Figure 1, on the control cable C that links the pedal 1 with the corresponding mechanism 2 of the motor carburetor of a motor vehicle. Such an example of the use of the self-adjusting device D object of the invention is given only by way of title and without this implying any limitation as to its scope of application, since such an example of use is exclusively intended to achieve this description a greater clarity of exposure. Figures 1 to 4 show how the device self - adjusting D comprises the main body 3, which is obtained preferably from material alumi ¬ child, the regulating rod 4, which is obtained preferably from plastic material, and MR retention means.
Las Figuras 3 y 4 muestran en sección como el cuerpo principal 3 tiene forma general cilindrica alargada en el que se ha practicado axial y centradamen¬ te el orificio pasante 5 a través del cual puede ser deslizado el cable de acero 6 constitutivo del cable de mando C. El cuerpo principal 3 tiene, en uno de sus extremos, el indicado como E_C en las Figuras 1 a 4, los medios de anclaje MA que se destinan al montaje del dispositivo autoajustador D en un punto fijo £, indicado esquemáticamente en las Figuras 1 y 4, funcionalmente adecuado de la estructura del vehículo automóvil . En este ejemplo de realización del dispositivo autoajusta- dor D objeto de la invención, los medios de anclaje MA comprenden el regruesamiento peπmetral 7 de contorno circular y la junta de material flexible 8 de forma general cilindrica que tiene, axial y centradamente, el orificio pasante 9, y peπmetralmente la ranura 10 como muestran las Figuras 3 y 4; el orificio pasante 9 está dimensionado de modo que, por deformación elástica, la junta 8 presiona sobre el cuerpo principal 3, y la ranura 10 está dimensionada de modo que, también por deformación elástica, lateralmente presiona sobre la pared 11 constitutiva del punto fi o F, de este modo, el cuerpo principal 3, y consiguientemente el dispositivo D, quedan anclados al punto fijo £. Los medios de anclaje MA antes descritos son dados únicamente a titulo de ejemplo oπentativo ya que, se comprende que pueden adoptar cualquier otra configuración adecuada a cada
caso concreto de aplicación sin que ello afecte a la esencialidad de la invención.Figures 3 and 4 show in section how the main body 3 has an elongated general cylindrical shape in which the through hole 5 has been practiced axially and centered through which the steel cable 6 constituting the control cable can be slid C. The main body 3 has, at one of its ends, the one indicated as E_C in Figures 1 to 4, the anchoring means MA that are intended for the assembly of the self-adjusting device D at a fixed point £, indicated schematically in the Figures 1 and 4, functionally adequate of the structure of the motor vehicle. In this exemplary embodiment of the self-adjusting device D object of the invention, the anchoring means MA comprise the peripheral thickening 7 of circular contour and the joint of flexible material 8 of generally cylindrical shape having, axially and centrally, the through hole 9, and peripherally slot 10 as shown in Figures 3 and 4; the through hole 9 is sized so that, by elastic deformation, the gasket 8 presses on the main body 3, and the groove 10 is sized so that, also by elastic deformation, it laterally presses on the wall 11 constituting the fixed point o F, thus, the main body 3, and consequently the device D, are anchored to the fixed point £. The anchoring means MA described above are given only by way of exemplary example since it is understood that they can adopt any other configuration suitable to each specific case of application without affecting the essentiality of the invention.
Las Figuras 3 y 4 muestran en sección como el vastago de regulación 4 tiene forma general cilindrica alargada y es atravesado, axial y centradamente, por el orificio 12 en el que longitudinalmente se distinguen dos porciones extremas indicadas como 12a y 12p; la porción extrema 12a está dimensionada para recibir y alojar la porción longitudinal 13 del cuerpo principal 3 que es opuesta al extremo E_C que comprende los medios de anclaje MA, y la porción extrema 12p está dimensiona- da para recibir con apriete el extremo CD de la porción 14 de cable enfundado del cable de mando C. En este ejemplo de realización del dispositivo autoajustador D objeto de la invención, para asegurar la firmeza del acoplamiento entre el extremo CD de la porción 14 de cable enfundado y el vastago de regulación 4, se prevé la abrazadera 15 que, a través del vastago 4, somete a compresión la funda 16 sin afectar a la capacidad de desplazamiento en ambos sentidos del cable de acero 6. Se comprende que, a efectos de asegurar el acoplamiento de dichos extremo C_D y vastago de regulación 4, pueden ser utilizados cualesquiera otros medios sin que ello afecte a la esencialidad de la invención.Figures 3 and 4 show in section how the regulating rod 4 has a generally elongated cylindrical shape and is crossed, axially and centrally, by the hole 12 in which two end portions are indicated longitudinally indicated as 12a and 12p; the end portion 12a is sized to receive and accommodate the longitudinal portion 13 of the main body 3 which is opposite the end E_C comprising the anchoring means MA, and the end portion 12p is sized to receive the CD end of the cable portion 14 sheathed with the control cable C. In this exemplary embodiment of the self-adjusting device D object of the invention, to ensure the firmness of the coupling between the CD end of the sheathed cable portion 14 and the regulating rod 4, provides for the clamp 15 which, through the rod 4, compresses the sheath 16 without affecting the displacement capacity in both directions of the steel cable 6. It is understood that, in order to ensure the coupling of said end C_D and rod of regulation 4, any other means can be used without affecting the essentiality of the invention.
Las Figuras 2 a 4 muestran como los medios de retención MR comprenden, en el cuerpo principal 3 y su porción longitudinal 13, el fileteado de rosca 17, y en el vastago de regulación 4 y en su extremo EC' receptor de dicha porción longitudinal 13, el casquillo de fijación 18, mostrado en perspectiva en la Figura 5, que es obtenido preferentemente a partir de chapa de acero de elevada flexibilidad. El detalle ampliado A de la Figura 4 muestra como el fileteado de rosca 17 tiene un
perfil transversal de diente de sierra en el que el lado 19 del hilo de rosca ortogonalmente dispuesto respecto del eje longitudinal del cuerpo principal 3 está dis¬ puesto enfrentadamente a los medios de anclaje MA del extremo EC de dicho cuerpo 3. El casquillo de fijación 18 tiene forma general cilindrica y está firmemente acoplado al vastago de regulación 4 por medio del casquillo de apriete 20 que, por compresión del casqui- 11o de fijación 18 sobre el vastago 4, impide que el casquillo de fijación 18 pueda, en condiciones normales de uso, modificar su posición respecto del vastago 4, al mismo tiempo, el casquillo de apriete 20 actúa como refuerzo estructural del vastago 4 impidiendo su defor¬ mación. La Figura 5 muestra como el casquillo de fija- ción 18 tiene en toda su longitud la ranura pasante 21 cuya finalidad es la de conferir al casquillo 18 una cierta flexibilidad transversal con objeto de facilitar su acoplamiento con el vastago de regulación 4 en la correspondiente fase de montaje en origen del dispositi- vo autoajustador D objeto de la invención. Uno de los extremos del casquillo de fijación 18, el indicado como EC ' ' en la Figura 5 y que una vez acoplado el casquillo 18 con el vastago de regulación 4 es contiguo con su extremo EC' , tiene los medios de guia MG compuestos por los cuatro salientes acodados 22 longitudinalmente dispuestos cuyos respectivos lados exteriores 23 están ortogonalmente orientados hacia el eje longitudinal del casquillo 18. El detalle ampliado A de la Figura 4 muestra como dichos lados exteriores 23 están dimensio- nados en correspondencia con el fileteado de rosca 17 del cuerpo principal 3, de modo que, como muestra en sección la Figura 6, una vez acoplados el vastago de regulación 4 y el cuerpo principal 3, dichos lados exteriores 23 definen una tuerca. En este ejemplo de realización del dispositivo autoajustador D objeto de la
invención, el número previsto de salientes acodados 22 de los medios de guia G es el preferente, se comprende que dichos medios MG pueden comprender un número distin¬ to de salientes 22, por ejemplo tres o cinco, sin que ello afecte a la esencial idad de la invención. Cabe señalar en este punto que, como muestra la Figura 2, el casquillo de apriete 20, que determina la posición del casquillo de fijación 18, está dispuesto de modo que los salientes acodados 22 pueden ser girados elásticamente alrededor del extremo 24i interior de su lado interior 24.Figures 2 to 4 show how the retaining means MR comprise, in the main body 3 and its longitudinal portion 13, the threaded thread 17, and in the regulating rod 4 and at its receiving end EC 'of said longitudinal portion 13 , the fixing sleeve 18, shown in perspective in Figure 5, which is preferably obtained from high flexibility steel sheet. The enlarged detail A of Figure 4 shows how thread thread 17 has a transverse profile of sawtooth in the side 19 of the thread of orthogonally arranged threads with respect to the longitudinal axis of the main body 3 is dis ¬ since enfrentadamente to the anchoring means MA of the end CE of said body 3. The fixing sleeve 18 It is generally cylindrical in shape and is firmly coupled to the regulating rod 4 by means of the clamping sleeve 20 which, by compression of the fixing sleeve 18 on the rod 4, prevents the fixing sleeve 18 from being able, under normal conditions of use , modify its position with respect to the rod 4, at the same time, the tightening bush 20 acts as a structural reinforcement of the rod 4 preventing its deformation. Figure 5 shows how the fixing bushing 18 has the entire length of the through groove 21 whose purpose is to give the bushing 18 a certain transverse flexibility in order to facilitate its coupling with the regulating rod 4 in the corresponding phase for mounting at the origin of the self-adjusting device D object of the invention. One of the ends of the fixing bushing 18, the one indicated as EC '' in Figure 5 and that once coupled the bushing 18 with the regulating rod 4 is contiguous with its end EC ', it has the guiding means MG composed of the four longitudinally arranged angled projections 22 whose respective outer sides 23 are orthogonally oriented towards the longitudinal axis of the bushing 18. The enlarged detail A of Figure 4 shows how said outer sides 23 are sized in correspondence with the threaded thread 17 of the main body 3, so that, as Figure 6 shows in section, once the regulating rod 4 and the main body 3 are coupled, said outer sides 23 define a nut. In this exemplary embodiment of the self-adjusting device D object of the The preferred number of angled projections 22 of the guiding means G is preferred, it is understood that said means MG can comprise a different number of projections 22, for example three or five, without affecting the essential ity of the invention. It should be noted at this point that, as Figure 2 shows, the tightening sleeve 20, which determines the position of the fixing sleeve 18, is arranged so that the angled projections 22 can be rotated elastically around the inner end 24i of its side interior 24.
Como antes se ha indicado, el dispositivo autoajus¬ tador D objeto de la invención que como ejemplo de realización se describe está montado en el cable de mando C que enlaza el pedal 1 del acelerador con el mecanismo 2 del carburador del motor de un vehículo automóvil, siendo la longitud de la porción 14 de cable enfundado 6-16 la que debe ser ajustada durante el montaje del cable de mando C en el vehículo. La Figura 3 muestra como es suministrado de origen el dispositivo autoajustador D, en estas condiciones, el cuerpo princi¬ pal 3 sobresale acentuadamente respecto del vastago de regulación 4, y la acción del casquillo de fijación 18, en concreto el engrane de los lados exteriores 23 de los salientes acodados 22 con el fileteado de rosca 17 del cuerpo principal 3, impiden que, durante el transporte y manipulación del dispositivo autoajustador D previa¬ mente a su montaje en el vehículo, el cuerpo principal 3 pueda modificar su posición respecto del vastago de regulación 4. Una vez anclado el dispositivo autoajusta¬ dor D en el punto fijo £ de la estructura del vehículo y fijados los extremos del cable de mando C al pedal del acelerador 1 y al mecanismo 2 del carburador respectiva- mente, el ajuste de la longitud de la porción 14 de
cable enfundado 6-16 se realiza simplemente presionando a fondo el pedal 1 del acelerador; en efecto, cuando es pisado a fondo el pedal 1, se provoca una solicitación longitudinal de la funda 16 del cable de acero 6 en el sentido que tiende a desplazar al vastago de regulación 4 hacia los medios de anclaje MA del cuerpo principal 3, produciéndose dicho desplazamiento del vastago 4, como muestra la Figura 4, mientras dicha solicitación es superior a la reacción que presenta la deformación elástica de los salientes acodados 22 del casquillo de fijación 18 al deslizar sus lados exteriores 23 sobre los lados inclinados 25 del fileteado 17 del cuerpo principal 3, se comprende que, dicho desplazamiento del vastago 4 prosigue hasta que se igualan dichas solicitᬠción y reacción por deformación elástica, momento éste en que queda ajustada la longitud de la porción 14 de cable enfundado 6-16. La configuración en diente de sierra del fileteado 17 del cuerpo principal 3 con el lado 19 del hilo de rosca ortogonal enfrentado a los medios de anclaje MA, impide que el vastago de regula¬ ción 4, por medio de los lados exteriores 23 engranados en el fileteado 17, pueda modificar su posición respecto del cuerpo principal 3. Al dejar de presionar sobre el pedal 1 del acelerador y éste retornar a su posición inicial, el cable de mando C queda dispuesto en las condiciones de servicio con la longitud de la porción 14 de cable enfundado 6-16 ajustada. En estas condiciones de servicio, el vastago de regulación 4 no puede modifi¬ car su posición respecto del cuerpo principal 3, en primer lugar, por dicha acción de los lados exteriores 23 de los medios de guia MG sobre el fileteado de rosa 17 del cuerpo principal 3, y en segundo lugar, por la propia reacción de la funda 6 del cable de mando C que impide que el vastago de regulación 4 pueda desenroscar- se debido a las trepidaciones propias de las condiciones
de marcha del vehículo.As indicated above, the self-adjusting device D object of the invention which is described as an example of embodiment is mounted on the control cable C that links the accelerator pedal 1 with the mechanism 2 of the motor carburetor of a motor vehicle , the length of the cable portion 14 being sheathed 6-16 which must be adjusted during the assembly of the control cable C in the vehicle. Figure 3 shows how the self-adjusting device D is originally supplied, under these conditions, the main body 3 protrudes sharply with respect to the regulating rod 4, and the action of the fixing sleeve 18, in particular the engagement of the outer sides 23 of the angled projections 22 with the threaded thread 17 of the main body 3, prevent the main body 3 from modifying its position with respect to the rod during transport and handling of the self-adjusting device D prior to its assembly in the vehicle. of regulation 4. Once the self-adjusting device D has been anchored at the fixed point £ of the vehicle structure and fixed the ends of the control cable C to the accelerator pedal 1 and the carburetor mechanism 2 respectively, the adjustment of the length of portion 14 of cable sheathed 6-16 is done simply by pressing the accelerator pedal 1 fully; in fact, when the pedal 1 is fully depressed, a longitudinal solicitation of the sheath 16 of the steel cable 6 is caused in the sense that it tends to move the regulating rod 4 towards the anchoring means MA of the main body 3, producing said displacement of the rod 4, as shown in Figure 4, while said solicitation is superior to the reaction presented by the elastic deformation of the angled projections 22 of the fixing sleeve 18 by sliding its outer sides 23 over the inclined sides 25 of the filleting 17 of the main body 3, it is understood that, said displacement of the rod 4 continues until said request and reaction are matched by elastic deformation, at which time the length of the sheath portion 14 of sheathed cable 6-16 is adjusted. The sawtooth configuration of the filleting 17 of the main body 3 with the side 19 of the orthogonal thread facing the anchoring means MA prevents the adjustment rod 4, by means of the outer sides 23 engaged in the threaded 17, can modify its position with respect to the main body 3. When it stops pressing on the accelerator pedal 1 and it returns to its initial position, the control cable C is arranged in the service conditions with the length of the portion 14 of cable wrapped 6-16 adjusted. Under these operating conditions, the regulating rod 4 cannot modify its position with respect to the main body 3, firstly, by said action of the outer sides 23 of the guide means MG on the threaded rose 17 of the body main 3, and secondly, by the reaction of the sheath 6 of the control cable C which prevents the regulating rod 4 from being able to unscrew due to the trepidations of the conditions of vehicle running.
Cuando por cualquier causa deba ser retirado del vehículo el cable de mando C, el usuario simplemente precisa desacoplar ambos extremos del cable C y retirar el dispositivo autoajustador D objeto de la invención de su anclaje en el punto fijo £; posteriormente, para proceder de nuevo al montaje del dispositivo autoajusta¬ dor D en el vehículo, el usuario precisa previamente desenroscar el vastago de regulación 4 en la medida en la que el cuerpo principal 3 ocupa la posición de origen mostrada en la Figura 3, siendo a partir de este momento que el usuario puede montar el dispositivo autoajustador D en la forma descrita anteriormente.
When the control cable C must be removed from the vehicle for any reason, the user simply needs to disconnect both ends of the cable C and remove the self-adjusting device D object of the invention from its anchor at the fixed point £; subsequently, in order to proceed again to assemble the self-adjusting device D in the vehicle, the user must first unscrew the regulating rod 4 to the extent that the main body 3 occupies the original position shown in Figure 3, being From this moment on, the user can mount the self-adjusting device D in the manner described above.
Claims
1.- Dispositivo autoajustador de la longitud de cables de mando que comprende: un cuerpo principal (3), que es obtenido de preferencia a partir de material de aluminio, de forma general cilindrica alargada que es atravesado longitudinalmente por un orificio centrado (5) a través del cual quede ser deslizado, holgadamente, el cable de acero (6) del cable de mando (C), teniendo el cuerpo principal (3) en uno de sus extremos (EC) medios (M£) para su anclaje a un punto fijo (£), cuales medios (MA) tienen una configuración que viene dada por las necesidades que presente cada caso concreto de aplicación; un vastago de regulación (4), que es obteni¬ do de preferencia a partir de material plástico, de forma general cilindrica alargada dispuesto coaxialmente respecto del cuerpo principal (3), teniendo longitudinal y centradamente un orificio pasante (12) a través del cual puede ser deslizado dicho cable de acero (6), y teniendo en uno de sus extremos medios (15) para su firme unión con el correspondiente extremo de la funda (16) del cable de mando (C) y de modo que ambos, vastago (4) y funda (16), son solidarios; medios de retención (MR) que, dispuestos complementariamente en el cuerpo principal (3) y en el vastago de regulación (4), actúan permanentemente fijando la posición del vastago (4) respecto del cuerpo principal (3), y que se caracteriza porque en el vastago de regulación (4) y en su orificio (12) longitudinal pasante, se distinguen en sus ambos extremos una respectiva porción longitudinal ( 12a, 12p) , una primera porción ( 12a) extrema está dimensionada para contener la porción (13) del cuerpo principal (3) que es longitudinalmente opuesta a la que comprende dichos medios de anclaje (MA), y la otra porción extrema ( 12p ) está dimensionada para recibir con apriete el correspon¬ diente extremo de la funda (16) del cable de mando (C).1.- Self-adjusting device of the length of control cables comprising: a main body (3), which is preferably obtained from aluminum material, generally elongated cylindrical that is crossed longitudinally by a centered hole (5) through which the steel cable (6) of the control cable (C) is loosely slid, having the main body (3) at one of its ends (EC) means (M £) for anchoring to a fixed point (£), which means (MA) have a configuration that is given by the needs of each specific application case; a regulating rod (4), which is preferably obtained from plastic material, generally elongated cylindrically arranged coaxially with respect to the main body (3), longitudinally and centrally having a through hole (12) through which said steel cable (6) can be slid, and having at one of its middle ends (15) for its firm connection with the corresponding end of the sheath (16) of the control cable (C) and so that both, rod (4) and sheath (16), are solidary; retention means (MR) which, in addition to the main body (3) and the regulating rod (4), act permanently fixing the position of the rod (4) with respect to the main body (3), and which is characterized in that in the regulating rod (4) and in its longitudinal through hole (12), a respective longitudinal portion (12a, 12p) is distinguished at both ends, a first first portion (12a) is sized to contain the portion (13) of the main body (3) which is longitudinally opposite to that comprising said anchoring means (MA), and the other end portion (12p) It is sized to receive with tightness the corresponding end of the sheath (16) of the control cable (C).
2.- Dispositivo autoajustador según la reivin- dicación 1), que se caracteriza porque los medios de retención (M£) comprenden, en el cuerpo principal (3) y longitudinal y exteπormente en su porción (13) opuesta a la que comprende los medios de anclaje (MA), un fileteado (17) de rosca, y en el vastago de regulación (4) y acoplado solidariamente en el extremo ( EC' ) que es receptor del cuerpo principal (3), un casquillo de fijación (18) obtenido a partir de material de elevada flexibilidad, cual casquillo (18) comprende medios de guia (MG) que permiten que el vastago (4) pueda ser deslizado en ambos sentidos por roscado de dichos medios de guia (MG) en el fileteado (17) de rosca del cuerpo principal (3), y que el vastago (4) pueda ser deslizado en el sentido en el que éste aloja en mayor medida al cuerpo principal (3) por sucesivas y repetidas dobles deformaciones elásticas de dichos medios de guia (MG) .2.- Self-adjusting device according to claim 1), characterized in that the retaining means (M £) comprise, in the main body (3) and longitudinally and extensively in its portion (13) opposite to the one comprising the anchoring means (MA), a threaded thread (17), and in the regulating rod (4) and coupled in solidarity at the end (EC ') that is the receiver of the main body (3), a fixing sleeve (18 ) obtained from high flexibility material, which bushing (18) comprises guide means (MG) that allow the rod (4) to be slid in both directions by threading said guide means (MG) into the filleting ( 17) of thread of the main body (3), and that the rod (4) can be slid in the direction in which it houses the main body (3) to a greater extent by successive and repeated double elastic deformations of said guide means (MG)
3.- Dispositivo autoajustador según las reivin¬ dicaciones 1) y 2), que se caracteriza porque el file¬ teado (17) de rosca del cuerpo principal (3) tiene un perfil transversal en diente de sierra, estando el lado (19) del hilo de rosca que guarda ortogonal idad respecto del eje longitudinal del cuerpo principal (3) dispuesto enfrentadamente respecto de los medios de anclaje (MA) de dicho cuerpo principal (3).3.- Self-adjusting device according to claims 1) and 2), characterized in that the threaded thread (17) of the main body (3) has a transverse profile in a sawtooth, the side (19) being of the thread that keeps orthogonal ity with respect to the longitudinal axis of the main body (3) arranged opposite to the anchoring means (MA) of said main body (3).
4.- Dispositivo autoajustador según las reivin¬ dicaciones 1) a 3), que se caracteriza porque el casqui- 11o de fijación (18), que tiene forma general cilindri¬ ca, tiene, en toda su longitud, una ranura pasante (21), y en uno de sus extremos ( EC' ' ) , el que es contiguo al extremo (EC' ) del vastago de regulación (4) que recibe al cuerpo principal (3), los medios de guia (MG) que comprenden una pluralidad de salientes longitudinales (22) regularmente distribuidos de forma general acodada cuyos respectivos lados (23) exteriores están orientados hacia el eje longitudinal del casquillo (18), estando dimensionados dichos lados (23) exteriores en corres¬ pondencia con el fileteado (17) de rosca del cuerpo principal (3) definiendo una tuerca.4.- Self-adjusting device according to claims 1) to 3), characterized in that the fixing sleeve (18), which has a generally cylindrical shape, has, throughout its length, a through groove (21 ), and at one of its ends (EC ''), which is adjacent to the end (EC ') of the regulating rod (4) that receives the main body (3), the guide means (MG) comprising a plurality of longitudinal projections (22) regularly distributed in a generally angled manner whose respective sides (23) The outer sides are oriented towards the longitudinal axis of the bushing (18), said outer sides (23) being sized in correspondence with the threaded thread (17) of the main body (3) defining a nut.
5.- Dispositivo autoajustador según las reivin¬ dicaciones 1) a 4), que se caracteriza porque el acopla¬ miento del casquillo de fijación (18) con el vastago de regulación (4) se realiza por medio de un casquillo (20) de apriete.5.- Self-adjusting device according to claims 1) to 4), characterized in that the coupling of the fixing bushing (18) with the regulating rod (4) is carried out by means of a bushing (20) of squeeze in.
6.- Dispositivo autoajustador según las reivin¬ dicaciones 1) a 5), que se caracteriza porque el número de salientes (22) longitudinales del casquillo de fijación (18) es de cuatro. 6.- Self-adjusting device according to claims 1) to 5), characterized in that the number of longitudinal projections (22) of the fixing sleeve (18) is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU21387/95A AU2138795A (en) | 1994-05-09 | 1995-04-05 | Self-adjustment device for adjusting the length of controlled cables |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ESP9400975 | 1994-05-09 | ||
| ES9400975A ES2115444B1 (en) | 1994-05-09 | 1994-05-09 | SELF-ADJUSTING DEVICE FOR CONTROL CABLE LENGTH. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1995030839A1 true WO1995030839A1 (en) | 1995-11-16 |
Family
ID=8286151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES1995/000037 WO1995030839A1 (en) | 1994-05-09 | 1995-04-05 | Self-adjustment device for adjusting the length of controlled cables |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU2138795A (en) |
| ES (1) | ES2115444B1 (en) |
| WO (1) | WO1995030839A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0774591A2 (en) * | 1995-11-18 | 1997-05-21 | Dr.Ing.h.c. F. Porsche Aktiengesellschaft | Tensioning device for control cables |
| EP0863320A1 (en) * | 1997-03-04 | 1998-09-09 | ROLTRA MORSE S.p.A. | Axial adjustment device for a trailing cable transmission |
| CN103527611A (en) * | 2013-10-28 | 2014-01-22 | 力帆实业(集团)股份有限公司 | Flexible shaft used for automobile gear selection and shift |
| CN104847777A (en) * | 2014-12-17 | 2015-08-19 | 北汽福田汽车股份有限公司 | Stay cable adjustment assembly and vehicle with the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3988943A (en) * | 1974-02-19 | 1976-11-02 | Texas Instruments Incorporated | Apparatus for automatic cable calibration |
| EP0234814A2 (en) * | 1986-02-14 | 1987-09-02 | Acco Babcock Inc. | Adjuster device for a control cable assembly |
-
1994
- 1994-05-09 ES ES9400975A patent/ES2115444B1/en not_active Expired - Fee Related
-
1995
- 1995-04-05 WO PCT/ES1995/000037 patent/WO1995030839A1/en active Application Filing
- 1995-04-05 AU AU21387/95A patent/AU2138795A/en not_active Abandoned
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3988943A (en) * | 1974-02-19 | 1976-11-02 | Texas Instruments Incorporated | Apparatus for automatic cable calibration |
| EP0234814A2 (en) * | 1986-02-14 | 1987-09-02 | Acco Babcock Inc. | Adjuster device for a control cable assembly |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0774591A2 (en) * | 1995-11-18 | 1997-05-21 | Dr.Ing.h.c. F. Porsche Aktiengesellschaft | Tensioning device for control cables |
| EP0774591A3 (en) * | 1995-11-18 | 1998-01-07 | Dr.Ing.h.c. F. Porsche Aktiengesellschaft | Tensioning device for control cables |
| EP0863320A1 (en) * | 1997-03-04 | 1998-09-09 | ROLTRA MORSE S.p.A. | Axial adjustment device for a trailing cable transmission |
| CN103527611A (en) * | 2013-10-28 | 2014-01-22 | 力帆实业(集团)股份有限公司 | Flexible shaft used for automobile gear selection and shift |
| CN104847777A (en) * | 2014-12-17 | 2015-08-19 | 北汽福田汽车股份有限公司 | Stay cable adjustment assembly and vehicle with the same |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2138795A (en) | 1995-11-29 |
| ES2115444A1 (en) | 1998-06-16 |
| ES2115444B1 (en) | 1999-02-16 |
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