WO1991000435A1 - Self-adjustable device for clutch control cables - Google Patents

Self-adjustable device for clutch control cables Download PDF

Info

Publication number
WO1991000435A1
WO1991000435A1 PCT/ES1990/000020 ES9000020W WO9100435A1 WO 1991000435 A1 WO1991000435 A1 WO 1991000435A1 ES 9000020 W ES9000020 W ES 9000020W WO 9100435 A1 WO9100435 A1 WO 9100435A1
Authority
WO
WIPO (PCT)
Prior art keywords
self
control cables
regulating device
clutch control
rod
Prior art date
Application number
PCT/ES1990/000020
Other languages
Spanish (es)
French (fr)
Inventor
Victorino Solano Sallan
Antonio Trilla Segura
Original Assignee
Pujol Y Tarrago, S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pujol Y Tarrago, S.A. filed Critical Pujol Y Tarrago, S.A.
Publication of WO1991000435A1 publication Critical patent/WO1991000435A1/en

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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

Definitions

  • the object of the present invention is a self-regulating device for clutch control cables, and particularly a device which are used to automatically compensate, increasing it, the length of the control cable in order to adapt it to progressive wear. of the clutch disc lining normally equipped by motor vehicles.
  • Such devices generally consist of a cylindrical body that houses the regulating mechanism which is essentially constituted by a "toothed rod” connected by means of a cable portion to the clutch mechanism and by a “clamp of coupling "also toothed connected by a portion of the cable other than the one before the control pedal, so that both the rod and the clamp can slide to a certain extent longitudinally, and reciprocally telescopically, inside the said body cylindrical.
  • Patents US 1 837 473 (Neveu), US 4 057 135 (Aisin), US 4 274 300 (Conchemco) and ES P 8 701 240 (Aspachs) are known, which are devices intended to fulfill a similar function, but which have a very different mechanical structure.
  • Patents US 4 378 713 (Acco Industries), E-A3-0234 864 (Acco Babcock), and FR 7 807 735 (SA Francoise du Ferodo), refer to devices comprising a mechanism for regulating the length of the clutch cable using a set of "rod shank - hitch clamp", in the same way as the device according to the present invention. These patents describe complementary mechanisms of some complexity, and therefore prone to breakdowns.
  • Spanish Patent No. 8702893 referring to a self-regulating device of the length of clutch cables, which discloses a more advanced technical solution than the aforementioned devices but which also presents the drawbacks of having a relatively large length, and of not being able to guarantee a correct operation in high temperature environments, that is to say environments between 115 ° C and 140 ° C.
  • the known embodiments are based on complex mechanisms of limited reliability in terms of the number of maneuvers that can be performed, and, on the other hand, have a low level of performance in reference to their adaptation to current flexibiization trends. both the assembly processes and the relative situation of the components of the vehicle transmission, which makes it difficult to assemble these devices with the consequent increase in costs, as well as the ability to withstand environments high temperature
  • the self-regulating device object of the invention has an extraordinary simplicity in terms of the number of elements that " compose it without implying any detriment either in terms of its operational capacity or in terms of limiting the number of components. attachable mobras.
  • an important novelty that discloses the device according to the invention is that a large portion of the stabilizing spring extends beyond the rigid structure of the self-regulating device according to the invention. In this way the length of the rigid structure of the device is markedly shorter than that of similar technology devices known previously, facilitating its location. It is understood that the external portion of the stabilizer spring is capable of bending and adapting to the assembly requirements with great versatility.
  • the self-regulating device for clutch control cables object of the invention allows its installation in the vehicle at the point where for reasons of working conditions, rationalization of the assembly and distribution operations of components is considered optimal .
  • the self-regulating device for clutch control cables object of the invention is of the type constituted by an essentially cylindrically shaped main body that contains a clamp that by means of a portion of cable coming out of the rear end of said body
  • the main one is attached to the control pedal, and a coupling rod which, by means of a portion of the cable that comes out from the front end, is connected to the clutch mechanism, with the caliper teeth facing the rod teeth, and being said clamp and rod capable of moving longitudinally through the interior of the main body both independently and together to accommodate each other, and is characterized by comprising: a internally hollow guide extension provided with longitudinal side windows, which is firmly attached to the leading end of the main body, which is longitudinally traversed by the cable portion that joins the hitch rod with the clutch mechanism; a transverse lever that protrudes outside the guide extension through the longitudinal side windows and which in the inner part is surrounding, without adjustment, the aforementioned cable portion; and an external stabilizer spring guided by the guiding extension, the front end of which rests against a fixed buttress
  • the rigid structure of the device according to the invention is composed solely of the main body and the guiding extension attached thereto, both elements comprising a relatively reduced joint length due to the said extension stabilizer spring guide is much shorter than the total length of the spring itself.
  • the stabilizer spring is only guided in a rear portion, the other portion being free to be able to bend at its discretion, as it is convenient for mounting the device in the vehicle.
  • the transverse lever is coupled to a circular bushing that serves as an ideal support for the pressor end of the stabilizer spring, said circular bushing being located around the outer face of the guiding extension, adjusting smoothly to slide along it.
  • the leading end of the guide extension is equipped with a sheath terminal in which the end of the sheath of the cable portion that joins the clutch rod with the clutch mechanism penetrates, which wire portion from said sheath
  • the terminal is devoid of a holster on all the way backwards until it joins the coupling rod.
  • the fixed stop against which the stabilizing spring reacts is constituted by a circular bushing provided with at least one step to receive the leading end of the stabilizing spring.
  • the fixed stop is equipped with a holster terminal and rigid turning means, possibly equipped with damping means, intended to allow its attachment at a fixed point in the structure of the vehicle.
  • the fixed stop is constituted by two separate pieces linked by the cable sheath attached to both, establishing a length that confers greater length to the flexible part of the device assembly, the most forward part being equipped with a sheath terminal and rigid enveloping means, possibly equipped with damping means, intended to allow its attachment to a fixed point of the vehicle structure.
  • the central hole of the cross lever that surrounds without adjustment the cable portion that connects the clutch rod with the clutch mechanism has a diameter or amplitude smaller than the amplitude of the head of said rod, so that when it moves forward it pushes, dragging it, to the mentioned cross lever.
  • the head of the coupling rod in the immediate area close to the start of the coupling teeth, has a narrow conical annular portion with a flat surface, which decreases its diameter from front to back, which, in the position Maximum penetration of the coupling rod is facing the teeth of the coupling clip.
  • a flexible outer bellows-shaped cover covers the entire length of the stabilizer spring, having its front end attached to the fixed stop and having its rear end attached to the leading end of the main body.
  • the constituent material thereof may be plastic material of usual properties in these use cases.
  • Said plastic material may be acetal resin or other commonly used in this type of mechanical applications.
  • the coupling clamp is constituted by flexible arms that start from a common rear trunk, preferably two arms , whose free front ends have firmly connected jaws equipped with respective threaded hooks, which components, arms and jaws are precisely metal, and more especially they are of different metals, being the constituent metal of the jaws capable of maintaining almost invariably its mechanical properties at high temperatures, at least up to 160 ° C.
  • the rear trunk and the arms of the coupling clamp are obtained from high-flexibility steel sheet, the corresponding jaws being obtained from an alloy of Aluminum, Copper and Zinc, that is a zamak alloy.
  • Figure 1 is a longitudinal sectional view of the device object d 'and the invention as encuen ⁇ tra before being mounted in an automobile.
  • Figures 2 to 5 which are described in more detail below, represent the device according to the invention mounted on a motor vehicle having the clutch disk practically new, that is to say without wear. Therefore in all these figures the capacity for self-regulation is maximum.
  • Figure 2 is a longitudinal sectional view of the device object of the invention, in the rest position.
  • Figure 3 is a longitudinal sectional view of the device object of the invention, in the initial position of travel due to the clutch pedal being operated.
  • Figure 4 is the view corresponding to the cross-section IV-IV obtained from Figure 3.
  • Figure 5 is a longitudinal sectional view of the device object of the invention, in the final position of the path that has been initiated in Figure 3.
  • Figure 6 is a longitudinal sectional view of the device object of the invention. This graphic representation shows said device in the rest position when it is mounted in a car that has the clutch disc partially worn.
  • Figure 7 is an element depicted in detail in detail.
  • the back of the device is considered to be the one closest to the control pedal, which is the one located in the lower area of the drawings.
  • the front part of the device is the closest to the engine gearbox, and is located in the upper area of the drawing sheet.
  • the self-regulating device for clutch control cables object of the invention is constituted by the main body 1 ( Figures 1, 2, 3, 5, 6) so essentially cylindrical to which the guiding extension 2 is also firmly attached which also has a shape essentially cylindrical
  • the hook clip 3 is firmly connected to the cable portion 4 that connects the self-regulating device object of the invention to the corresponding control pedal of the vehicle through the through hole 5 arranged at the end posterior (lower in the drawings) of the main body 1.
  • a sheath terminal 6 into which the sheath end 7 of the cable portion 4 penetrates.
  • Said main body 1 also contains the coupling rod 8 which is firmly connected to the cable portion 9 that is directed towards the clutch mechanism of the vehicle.
  • the guiding extension 2 ( Figures 1 to 6) is very characteristic and fundamentally determines the improved operation of the device according to the invention.
  • Said guiding extension 2 has two longitudinal side windows 10a and 10b, facing each other, which in magnitude extend covering almost the total length of the guiding extension itself 2.
  • Crossing said two windows 10a and 10b ( Figures 3 and 4) there are in the inside the guide extension 2 the transverse lever 11, so that the two ends 11a and 11b come out on the outside, on which the circular bushing 12 externally surrounds, with free adjustment, the guide extension 2 so that it can slide along it.
  • a step 13 is formed which acts of limit after the possible travel of the joint assembly formed by the transverse lever 11 and the circular bushing 12.
  • the transverse lever 11 has in its central part a through hole 14 through which the cable portion 9 freely passes, and at the leading end of the guiding extension 2 there is the sheath terminal 15 with the through hole 16 through which also freely pass said cable portion 9.
  • Said through hole 14 arranged in the transverse lever 11 has, in this exemplary embodiment of the device object of the invention, a diameter or amplitude smaller than the amplitude of the head 8a of the coupling rod 8, being precisely in the head 8a cited where the cable portion 9 that links the device object of the invention with the vehicle clutch mechanism is firmly connected.
  • the rear end of the sheath 17 corresponding to the cable portion 9 penetrates into the sheath terminal 15, where said sheath 17 is firmly attached to the guiding extension 2.
  • the stabilizer spring 18 is guided internally in its rear portion by the guide extension 2, its front portion being free to be able to bend in a discretionary manner.
  • the front end of said stabilizer spring 18 rests on a retaining ring 19 that is firmly attached to the sheath 17 of the cable portion 9, while the rear end of said stabilizer spring 18 acts permanently through the bushing. move 12 against the lever cross 11.
  • the transverse lever 11 acts in turn permanently on the head 8a of the coupling rod 8 in the interval determined by the distance between the step 13 and the maximum forward position that it can occupy.
  • the hitch rod 8 a position that will be given progressively as long as the clutch disc lining is worn, that is, the cross lever 11 is driven by the hitch rod 8 in its displacements inside the guiding extension 2.
  • Figure 2 of the drawing sheets corresponding to this exemplary embodiment of the device object of the invention shows the arrangement adopted to establish an extension that confers a greater length to the flexible part of the device assembly.
  • the purpose of this extension is to increase the number of possibilities in terms of the installation or assembly point of the device to a greater extent, thus facilitating its adaptation in the vehicle and without affecting in any way the operation of the device.
  • the retaining ring 19, against which the stabilizing spring 18 reacts is at a relatively short distance from the leading end of the guiding portion 2 with the cable portion 9 and the sheath 17 extending until terminal T is reached, said terminal J being constituted by a sheath terminal 20, a shock absorber 21 and by rigid enveloping means 22, which rigid means 22 allows the coupling of terminal T in a fixed point of the structure of the vehicle, the cable portion 9 devoid of sheath extending from said point until connecting with the clutch mechanism through suitable means.
  • FIG. 1 Another example of embodiment would be one in which the stabilizer spring 18 reacts directly on the terminal T itself located at a fixed point of the vehicle structure, whereby in this case the total length of the device object of the invention would be the minimum possible.
  • the retaining ring 19 and the terminal T are the same piece. Therefore, in Figures 1, 3, 5 and 6, reference 19 expressly indicates ambiguously an element (retaining ring 19) that can be a single piece, that is, it can also be terminal T, or it can be cooperative. with a separate and not represented terminal I.
  • the stabilizer spring 18 is fully protected by the flexible outer cover 23, ( Figures 1, 2, 3, 5, 6), where the front end of said flexible outer cover 23 firmly attached to the retaining ring 19, while its rear end is firmly connected to the front end of the main body 1.
  • the clamp 3 that is represented in Figures 1 to 6 is constituted entirely of plastic material, such as aceta resin! ica, suitable to withstand ambient temperatures approximately equal to or below 110 ° C.
  • Said coupling clip 3, represented in Figures 1, 2, 3, 5 and 6, is composed of two arms 3a facing each other in whose Free front ends are attached together corresponding jaws 3b provided with respective threaded engagement, which threaded logically correspond to the threaded coupling rod 8 in order to achieve an adequate coupling or engagement between both jaws 3b and the rod with hook 8 when the control pedal to which the device is connected is activated.
  • the coupling clip 24, shown in Figure 7 is composed of two arms 24a and corresponding jaws 24b which are precisely metallic.
  • the arms 24a are obtained from high-flexibility steel sheet
  • jaws 24b are obtained from a zamak alloy, all of which confer both jaws 24a and the arms 24b of the coupling clip 24 a practical mechanical inalterability at high temperatures and of course at the temperatures considered here. It is understood that the hitch clip 24 its arms 24a and its jaws 24b behave mechanically identically to the hitch clip 3, the arms 3a and the jaws 3b.
  • Figure 1 of the drawing sheets shows the self-regulating device for clutch control cables object of the invention prior to installation in a vehicle, detailing the position occupied in this case by the hitch rod 8 and the hitch clip
  • said hitch rod 8 has head 8a and in the immediate area next to the vehicle. start of the filleting of the hitch of a narrow conical annular position 8b with a smooth surface and which decreases in diameter from front to back.
  • Figure 2 of the drawing sheets corresponding to this exemplary embodiment shows the device object of the invention newly installed in a vehicle or with minimal wear of the clutch disc, the position being relatively detailed advanced of the hitch rod 8 with respect to the jaws 3b of the hitch clamp 3, to the point where both threaded, that of the hitch rod 8 and that of the jaws 3b, are facing and in a position to be able to engage clutch pedal operated.
  • the adjustment of the initial position of the coupling rod 8, detailed above, is carried out during the assembly operations in the vehicle of the device by means of mechanisms of known technology.
  • Figure 3 shows the device object of the invention installed in a vehicle and where the position occupied by the jaws 3b of the clamp 3 is detailed once it has started its journey through the interior of the main body 1 when the control pedal is operated .
  • the hitch rod 8 returns to its resting position by dragging said hitch clip 3, with which it is connected by the action of its respective filleting hooks, to the point where the jaws 3b are located at the location provided inside the main body 1 by the action of the arms 3a of the clamp 3.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

The disclosed device is comprised of a main body (1) which contains a coupling rod (3) which is longitudinally and alternatingly displaceable in a telescopic way inside the main body (1), the latter (1) being connected to a guiding extension (2) which is hollow and is provided with side windows (10a, 10b) and which guides a stabilizing spring (18) having a flexible external cover (23); the stabilizing spring (18) acts in a permanent and flexible way against a transverse lever (11) arranged inside the guiding extension (2) and against a fixed stop (T) integral with the sheath (17) of the portion of cable (9) which connects the device to the clutch mechanism. Application to the industry of motor vehicles.

Description

D E S C R I P C I Ó N D E S C R I P C I Ó N
DISPOSITIVO AUTORREGULABLE PARA CABLES DE MANDO DE EMBRAGUESSELF-REGULATING DEVICE FOR CLUTCH CONTROL CABLES
Sector técnico de la invenciónTechnical sector of the invention
Tiene por objeto la presente invención un disposi¬ tivo autorregulable para cables de mando de embragues, y particularmente un dispositivo de los que son utiliza¬ dos para compensar automáticamente, incrementándola, la longitud del cable de mando a fin de adaptarla al pro¬ gresivo desgaste de la guarnición del disco de embrague que normalmente equipan los vehículos automóviles.The object of the present invention is a self-regulating device for clutch control cables, and particularly a device which are used to automatically compensate, increasing it, the length of the control cable in order to adapt it to progressive wear. of the clutch disc lining normally equipped by motor vehicles.
Antecedentes de la invenciónBackground of the invention
Son ampliamente conocidos los problemas causados por el desgaste progresivo de la guarnición del disco de embrague en los vehículos automóviles ya que tal des- gaste introduce la necesidad de proceder a un constante ajuste de la carrera del correspondiente pedal de mando. Este ajuste debe efectuarse necesariamente de forma periódica operando sobre los mecanismos previstos para tal fin aunque ello reporta notables inconvenientes pa- ra el usuario toda vez que la operación de ajuste debe efectuarse por personal y medios especial zados y preci¬ sa de un cierto tiempo durante el cual el vehículo se encuentra inmovilizado.The problems caused by the progressive wear of the clutch disc lining in motor vehicles are widely known since such wear introduces the need to proceed with a constant adjustment of the stroke of the corresponding control pedal. This adjustment must be carried out periodically by operating on the mechanisms provided for this purpose, although this reports significant inconveniences for the user since the adjustment operation must be carried out by personnel and special means and requires a certain amount of time during which the vehicle is immobilized.
Con objeto de dar solución a tales inconvenientes se encuentran disponibles en el mercado dispositivos que instalados entre el mecanismo de embrague y el pedal de mando, y que se encuentran conectados a éstos mediante correspondientes porciones de cable independientes entre si , mantienen constante el recorrido de dicho pedal de mando compensando a través del cable que conecta tales dispositivos con el mecanismo de embrague el desgaste producido en la guarnición del disco de embrague. Tales dispositivos en general consisten en un cuerpo cili'n- drico que aloja el mecanismo de regulación el cual en esencia se encuentra constituido por un "vastago denta¬ do" conectado mediante una porción de cable al mecanismo de embrague y por una "pinza de enganche" también dentada conectada mediante una porción de cable distinta de la anterior al pedal de mando, de forma que tanto el vastago como la pinza de enganche pueden en cierta medida deslizar longi udinalmente, y reciprocamente en forma telescópica, por el interior de dicho cuerpo cilindrico. Su funcionamiento se basa en el hecho de que la pinza de enganche mantiene una posición relativa constante mientras no es accionado el pedal de mando, y, por el contrario, el vastago dentado, que está sometido a la acción permanente estabi1 izadora de un resorte, varia progresivamente de posición respecto de la pinza de enganche en una medida que se corresponde con el desgaste de la guarnición del disco αe embrague. De esta forma la acción sobre el pedal de mando provoca que dicha pinza de enganche transfiera dicha acción al mecanismo de embrague a través del citado vastago que se encuentra en la posición determinada por el propio desgaste de la guarnición del disco de embrague, logran¬ do de este modo mantener constante la carrera del pedal de mando y optimizar las funciones del disco de embra¬ gue.In order to solve these problems, devices that are installed between the clutch mechanism and the control pedal are available on the market, and that are connected to them by means of corresponding cable portions independent of each other, keep the path of said path constant. pedal of control compensating the wear produced in the clutch disc lining through the cable connecting such devices to the clutch mechanism. Such devices generally consist of a cylindrical body that houses the regulating mechanism which is essentially constituted by a "toothed rod" connected by means of a cable portion to the clutch mechanism and by a "clamp of coupling "also toothed connected by a portion of the cable other than the one before the control pedal, so that both the rod and the clamp can slide to a certain extent longitudinally, and reciprocally telescopically, inside the said body cylindrical. Its operation is based on the fact that the hitch clamp maintains a constant relative position while the control pedal is not operated, and, on the contrary, the jagged rod, which is subjected to the permanent stabilizing action of a spring, It progressively varies in position with respect to the hitch clamp to a degree that corresponds to the wear of the clutch disk αe clutch. In this way, the action on the control pedal causes said coupling clip to transfer said action to the clutch mechanism through said rod which is in the position determined by the wear of the clutch disc lining itself, achieving in this way keep the control pedal stroke constant and optimize the functions of the clutch disc.
Son conocidas las patentes US 1 837 473 (Neveu), US 4 057 135 (Aisin), US 4 274 300 (Conchemco) y ES P 8 701 240 (Aspachs), que son dispositivos destinados a cumplir una función parecida, pero que tienen una estructura mecánica muy distinta. Las patentes US 4 378 713 (Acco Industries), E — A3-0234 864 (Acco Babcock), y FR 7 807 735 (S.A. Fran- caise du Ferodo), se refieren a dispositivos que com- prenden un mecanismo de regulación de la longitud del cable del embrague que emplean un juego de "vastago den¬ tado - pinza de enganche", del mismo modo que lo hace el dispositivo según la presente invención. Estas patentes describen mecanismos complementarios de cierta compleji- dad, y por consiguiente propensos a sufrir averias. Además, es también importante señalar que estos disposi¬ tivos conocidos forman en conjunto una unidad integral de mucha longitud, creando dificultades de montaje y de ubicación. Finalmente, se destaca que estos dispositivos conocidos únicamente pueden soportar temperaturas ambientales de hasta 90°C, que era la temperatura máxima que se producia alrededor del motor de los vehículos automóviles hasta hace muy poco tiempo. Sin embargo, los fabricantes de automóviles están diseñando nuevos vehículos para los cuales las temperaturas que deben poder soportar los componentes ubicados cerca del motor debe de ser notablemente superior, aproximadamente entre 115°C y 140°C. En consecuencia, los dispositivos cono¬ cidos citados no pueden soportar estas exigencias.The patents US 1 837 473 (Neveu), US 4 057 135 (Aisin), US 4 274 300 (Conchemco) and ES P 8 701 240 (Aspachs) are known, which are devices intended to fulfill a similar function, but which have a very different mechanical structure. Patents US 4 378 713 (Acco Industries), E-A3-0234 864 (Acco Babcock), and FR 7 807 735 (SA Francoise du Ferodo), refer to devices comprising a mechanism for regulating the length of the clutch cable using a set of "rod shank - hitch clamp", in the same way as the device according to the present invention. These patents describe complementary mechanisms of some complexity, and therefore prone to breakdowns. In addition, it is also important to note that these known devices together form a long length integral unit, creating assembly and location difficulties. Finally, it is noted that these known devices can only withstand ambient temperatures of up to 90 ° C, which was the maximum temperature that was produced around the motor of motor vehicles until very recently. However, automakers are designing new vehicles for which the temperatures that must be able to withstand the components located near the engine must be significantly higher, approximately between 115 ° C and 140 ° C. Consequently, the aforementioned known devices cannot support these requirements.
Otro ejemplo de tales dispositivos es la patente española No. 8702893, referente a un dispositivo auto- rregulable de la longitud de cables de embrague, que da a conocer una solución técnica más avanzada que los dis- positivos antes citados pero que igualmente presenta los inconvenientes de tener una relativamente gran longitud, y de no ser apto para garantizar un correcto funciona¬ miento en ambientes de elevada temperatura, o sea ambientes entre 115°C y 140°C. En general las realizaciones conocidas se basan en mecanismos complejos de fiabilidad limitada en cuanto al número de maniobras realizable, y, por otro lado, presentan un nivel de prestaciones escaso en lo que ha- ce referencia a su adaptación a las actuales tendencias de flexibi 1ización tanto de los procesos de montaje co¬ mo de situación relativa de los componentes de la trans¬ misión del vehículo, lo que dificulta el montaje de di¬ chos dispositivos con el consiguiente incremento de cos- tes, asi como en la capacidad de resistir ambientes de temperatura elevada.Another example of such devices is Spanish Patent No. 8702893, referring to a self-regulating device of the length of clutch cables, which discloses a more advanced technical solution than the aforementioned devices but which also presents the drawbacks of having a relatively large length, and of not being able to guarantee a correct operation in high temperature environments, that is to say environments between 115 ° C and 140 ° C. In general, the known embodiments are based on complex mechanisms of limited reliability in terms of the number of maneuvers that can be performed, and, on the other hand, have a low level of performance in reference to their adaptation to current flexibiization trends. both the assembly processes and the relative situation of the components of the vehicle transmission, which makes it difficult to assemble these devices with the consequent increase in costs, as well as the ability to withstand environments high temperature
Explicación de la invenciónExplanation of the invention.
Con el fin de aportar una solución a los inconve- nientes indicados en lo que hace referencia a: a) el alto nivel de complejidad y la limitada fiabilidad en cuanto al número de maniobras realizable por los meca¬ nismos constituyentes de los dispositivos en cuestión; b) los problemas derivados de una gran longitud con es- casa capacidad de adaptación a las tendencias actuales de procedimientos de montaje y de fabricación y de si¬ tuación relativa de los componentes de la transmisión en los vehículos automóviles; y c) la necesidad de poder soportar elevadas temperaturas ambientales, se da a conocer un dispositivo autorregulable para cables de mando de embragues cuyo diseño operativo, concepción y funcionalidad se diferencia sustancialmente de cuantos antecedentes afines o semejantes son conocidos por los inventores.In order to provide a solution to the drawbacks indicated in what refers to: a) the high level of complexity and the limited reliability in terms of the number of maneuvers performed by the constituent mechanisms of the devices in question; b) the problems arising from a large length with little capacity to adapt to current trends in assembly and manufacturing procedures and relative situation of transmission components in motor vehicles; and c) the need to be able to withstand high ambient temperatures, a self-regulating device for clutch control cables is disclosed whose operational design, conception and functionality differs substantially from how many related or similar backgrounds are known by the inventors.
El dispositivo autorregulable objeto de la inven¬ ción presenta una extraordinaria simplicidad en cuanto al número de elementos que "lo componen sin que ello suponga detrimento alguno ni en cuanto a su capacidad operativa ni en cuanto a limitación del número de ma- mobras realizable.The self-regulating device object of the invention has an extraordinary simplicity in terms of the number of elements that " compose it without implying any detriment either in terms of its operational capacity or in terms of limiting the number of components. attachable mobras.
Una importante novedad que da a conocer el dispo¬ sitivo según la invención consiste en que una porción grande del resorte estabilizador se extiende más allá de la estructura rígida del dispositivo autorregulable según la invención. De este modo la longitud de la es¬ tructura rígida del dispositivo es notablemente inferior a la de los dispositivos de tecnología semejante cono- cidos con anterioridad, facilitando su ubicación. Se comprende que la porción externa del resorte estabi¬ lizador es capaz de curvarse y adaptarse a las exigen¬ cias de montaje con una gran versatilidad.An important novelty that discloses the device according to the invention is that a large portion of the stabilizing spring extends beyond the rigid structure of the self-regulating device according to the invention. In this way the length of the rigid structure of the device is markedly shorter than that of similar technology devices known previously, facilitating its location. It is understood that the external portion of the stabilizer spring is capable of bending and adapting to the assembly requirements with great versatility.
Como consecuencia de lo anterior el dispositivo autorregulable para cables de mando de embragues objeto de la invención permite su instalación en el vehículo en el punto en que por razones de condiciones de trabajo, racionalización de las operaciones de montaje y de distribución de componentes se considere óptimo.As a consequence of the above, the self-regulating device for clutch control cables object of the invention allows its installation in the vehicle at the point where for reasons of working conditions, rationalization of the assembly and distribution operations of components is considered optimal .
El dispositivo autorregulable para cables de mando de embragues objeto de la invención es del tipo de los constituidos por un cuerpo principal de forma esencial- mente cilindrica que contiene una pinza de enganche que mediante una porción de cable que sale por el extremo posterior del citado cuerpo principal se encuentra unida al pedal de mando, y un vastago de enganche que mediante una porción de cable que sale por el extremo delantero está unido al mecanismo de embrague, hallándose enfren¬ tados los dientes de la pinza a los dientes del vastago, y siendo dichos pinza y vastago capaces de desplazarse longitudinalmente por el interior del cuerpo principal tanto independientemente como conjuntamente para aco- piarse entre sí, y se caracteriza por comprender: una extensión guiadora internamente hueca provista de ventanas laterales longitudinales, que se encuentra unida firmemente al extremo delantero del cuerpo princi¬ pal, la cual es atravesada longitudinalmente por la porción de cable que une el vastago de enganche con el mecanismo de embrague; una palanca transversal que sobresale al exterior de la extensión guiadora atra¬ vesando las ventanas laterales longitudinales y que en la parte interior está rodeando, sin ajuste, a la por- ción de cable citada; y un resorte estabilizador exter¬ no guiado por la extensión guiadora, cuyo extremo delan¬ tero apoya contra un tope fijo solidario con la funda de la misma porción de cable situado en la zona más de¬ lantera del dispositivo, y cuyo extremo posterior actúa permanentemente contra la parte exterior de la palanca transversal .The self-regulating device for clutch control cables object of the invention is of the type constituted by an essentially cylindrically shaped main body that contains a clamp that by means of a portion of cable coming out of the rear end of said body The main one is attached to the control pedal, and a coupling rod which, by means of a portion of the cable that comes out from the front end, is connected to the clutch mechanism, with the caliper teeth facing the rod teeth, and being said clamp and rod capable of moving longitudinally through the interior of the main body both independently and together to accommodate each other, and is characterized by comprising: a internally hollow guide extension provided with longitudinal side windows, which is firmly attached to the leading end of the main body, which is longitudinally traversed by the cable portion that joins the hitch rod with the clutch mechanism; a transverse lever that protrudes outside the guide extension through the longitudinal side windows and which in the inner part is surrounding, without adjustment, the aforementioned cable portion; and an external stabilizer spring guided by the guiding extension, the front end of which rests against a fixed buttress integral with the sheath of the same cable portion located in the area ahead of the device, and whose rear end acts permanently against the outside of the cross lever.
De acuerdo con las características anteriores, pue¬ de comprobarse que la estructura rígida del dispositivo según la invención está compuesta únicamente por el cuerpo principal y por la extensión guiadora unida al mismo, abarcando ambos elementos una longitud conjunta relativamente reducida debido a que la citada extensión guiadora del resorte estabilizador tiene longitud mucho menor que la longitud total del propio resorte. Dicho con otras palabras, el resorte estabilizador únicamente va guiado en una porción posterior, quedando la otra porción libre para poder doblegarse a discreción, según sea conveniente para el montaje del dispositivo en el vehículo.According to the above characteristics, it can be verified that the rigid structure of the device according to the invention is composed solely of the main body and the guiding extension attached thereto, both elements comprising a relatively reduced joint length due to the said extension stabilizer spring guide is much shorter than the total length of the spring itself. In other words, the stabilizer spring is only guided in a rear portion, the other portion being free to be able to bend at its discretion, as it is convenient for mounting the device in the vehicle.
La palanca transversal se encuentra acoplada a un casquillo circular que sirve de apoyo idóneo para el ex¬ tremo presor del resorte estabilizador, estando situado dicho casquillo circular alrededor de la cara externa de la extensión guiadora, ajustando suavemente para poder deslizar a lo largo de la misma.The transverse lever is coupled to a circular bushing that serves as an ideal support for the pressor end of the stabilizer spring, said circular bushing being located around the outer face of the guiding extension, adjusting smoothly to slide along it.
El extremo delantero de la extensión guiadora está equipado con un terminal de funda en el cual penetra el final de la funda de la porción de cable que une el vas¬ tago de enganche con el mecanismo del embrague, cual porción de cable a partir de dicho terminal queda des¬ provista de funda en todo el trayecto hacia atrás que queda hasta unirse con el vastago de enganche.The leading end of the guide extension is equipped with a sheath terminal in which the end of the sheath of the cable portion that joins the clutch rod with the clutch mechanism penetrates, which wire portion from said sheath The terminal is devoid of a holster on all the way backwards until it joins the coupling rod.
El tope fijo contra el cual reacciona el resorte estabilizador está constituido por un casquillo circular provisto de cuanto menos un escalón para recibir el extremo delantero del resorte estabilizador.The fixed stop against which the stabilizing spring reacts is constituted by a circular bushing provided with at least one step to receive the leading end of the stabilizing spring.
Según un modo de realización, el tope fijo está equipado con un terminal de funda y medios rígidos en¬ volventes, eventual ente equipados con medios de amorti- guación, destinados a permitir su enganche en un punto fijo de la estructura del vehículo.According to one embodiment, the fixed stop is equipped with a holster terminal and rigid turning means, possibly equipped with damping means, intended to allow its attachment at a fixed point in the structure of the vehicle.
Según otro modo de realización, el tope fijo está constituido por dos piezas separadas enlazadas por la funda del cable unida a ambos, estableciendo una prolon¬ gación que confiere mayor longitud a la parte flexible del conjunto del dispositivo, estando equipada la pieza más delantera con un terminal de funda y medios rígidos envolventes, eventualmente equipados con medios de amor- tiguación, destinados a permitir su enganche en un pun¬ to fijo de la estructura del vehículo.According to another embodiment, the fixed stop is constituted by two separate pieces linked by the cable sheath attached to both, establishing a length that confers greater length to the flexible part of the device assembly, the most forward part being equipped with a sheath terminal and rigid enveloping means, possibly equipped with damping means, intended to allow its attachment to a fixed point of the vehicle structure.
El orificio central de la palanca transversal que rodea sin ajuste la porción de cable que une el vastago de enganche con el mecanismo de embrague tiene diámetro o amplitud menor a la amplitud de la cabeza del citado vastago, para que al desplazarse éste hacia adelante em¬ puje, arrastrándola, a la palanca transversal citada.The central hole of the cross lever that surrounds without adjustment the cable portion that connects the clutch rod with the clutch mechanism has a diameter or amplitude smaller than the amplitude of the head of said rod, so that when it moves forward it pushes, dragging it, to the mentioned cross lever.
La cabeza del vastago de enganche, en la zona inme¬ diata próxima al inicio del dentado de enganche, presen¬ ta una estrecha porción anular cónica de superficie li¬ sa, que disminuye su diámetro desde delante hacia atrás, la cual, en la posición de máxima penetración del vastago de enganche queda enfrentada al dentado de la pinza de enganche.The head of the coupling rod, in the immediate area close to the start of the coupling teeth, has a narrow conical annular portion with a flat surface, which decreases its diameter from front to back, which, in the position Maximum penetration of the coupling rod is facing the teeth of the coupling clip.
Una cubierta flexible exterior en forma de fuelle cubre toda la longitud del resorte estabilizador, te- niendo su extremo delantero unido al tope fijo y tenien¬ do unido su extremo posterior al extremo delantero del cuerpo principal.A flexible outer bellows-shaped cover covers the entire length of the stabilizer spring, having its front end attached to the fixed stop and having its rear end attached to the leading end of the main body.
Cuando las temperaturas ambientales a soportar por la pinza de enganche no sean superiores a 110°C ó 115°C el material constitutivo de la misma puede ser material plástico de propiedades usuales en estos casos de utilización. Dicho material plástico puede ser resina acetálica u otro comunmente usado en este tipo de aplicaciones mecánicas.When the ambient temperatures to be supported by the clamp do not exceed 110 ° C or 115 ° C, the constituent material thereof may be plastic material of usual properties in these use cases. Said plastic material may be acetal resin or other commonly used in this type of mechanical applications.
Según una característica adicional y alternativa de la presente invención y con objeto de soportar elevadas temperaturas ambientales, comprendidas entre 115°C y 140°C, la pinza de enganche se encuentra constituida por brazos flexibles que arrancan de un tronco posterior común, preferiblemente dos brazos, cuyos extremos delanteros libres tienen firmemente unidas correspon¬ dientes mordazas dotadas de respectivos fileteados de enganche, cuales componentes, brazos y mordazas, son precisamente metálicos, y más especialmente son de metales distintos, siendo el metal constitutivo de las mordazas capaz de mantener practivamente invariables sus propiedades mecánicas a elevadas temperaturas, como mínimo hasta 160°C.According to an additional and alternative feature of the present invention and in order to withstand high ambient temperatures, comprised between 115 ° C and 140 ° C, the coupling clamp is constituted by flexible arms that start from a common rear trunk, preferably two arms , whose free front ends have firmly connected jaws equipped with respective threaded hooks, which components, arms and jaws are precisely metal, and more especially they are of different metals, being the constituent metal of the jaws capable of maintaining almost invariably its mechanical properties at high temperatures, at least up to 160 ° C.
Según un modo de realización preferente el tronco posterior y los brazos de la pinza de enganche son ob¬ tenidos a partir de chapa de acero de elevada flexibi- lidad, siendo obtenidas las correspondientes mordazas a partir de una aleación de Aluminio, Cobre y Cinc, o sea una aleación zamak.According to a preferred embodiment, the rear trunk and the arms of the coupling clamp are obtained from high-flexibility steel sheet, the corresponding jaws being obtained from an alloy of Aluminum, Copper and Zinc, that is a zamak alloy.
Breve descripción de los dibujos En las hojas de dibujos anexas a la presente memo¬ ria aparece representado el dispositivo autorregulable para cables de mando de embragues objeto de la inven¬ ción, mostrándose:BRIEF DESCRIPTION OF THE DRAWINGS The self-regulating device for clutch control cables object of the invention is shown on the drawing sheets attached to this report, showing:
La Figura 1, es una vista en sección longitudinal del dispositivo objeto d'e la invención, tal como se encuen¬ tra antes de ser montado en un automóvil.Figure 1 is a longitudinal sectional view of the device object d 'and the invention as encuen¬ tra before being mounted in an automobile.
Las Figuras 2 a 5 que seguidamente se describen con más detalle representan el dispositivo según la invención montado en un vehículo automóvil que tiene el disco del embrague prácticamente nuevo, o sea sin desgastar. Por lo tanto en todas estas figuras la capacidad de autorre¬ gulación es máxima.Figures 2 to 5, which are described in more detail below, represent the device according to the invention mounted on a motor vehicle having the clutch disk practically new, that is to say without wear. Therefore in all these figures the capacity for self-regulation is maximum.
La Figura 2, es una vista en sección longitudinal del dispositivo objeto de la invención, en posición de re¬ poso.Figure 2 is a longitudinal sectional view of the device object of the invention, in the rest position.
La Figura 3, es una vista en sección longitudinal del dispositivo objeto de la invención, en la posición ini¬ cial de desplazamiento a causa de ser accionado el pedal del embrague.Figure 3 is a longitudinal sectional view of the device object of the invention, in the initial position of travel due to the clutch pedal being operated.
La Figura 4, es la vista correspondiente a la sección transversal IV-IV obtenida de la Figura 3.Figure 4 is the view corresponding to the cross-section IV-IV obtained from Figure 3.
La Figura 5, es una vista en sección longitudinal del dispositivo objeto de la invención, en la posición final del recorrido que se ha iniciado en la Figura 3.Figure 5 is a longitudinal sectional view of the device object of the invention, in the final position of the path that has been initiated in Figure 3.
La Figura 6, es una vista en sección longitudinal del dispositivo objeto de la invención. Esta representación gráfica muestra dicho dispositivo en posición de reposo cuando se encuentra montado en un automóvil que tiene el disco de embrague parcialmente desgastado.Figure 6 is a longitudinal sectional view of the device object of the invention. This graphic representation shows said device in the rest position when it is mounted in a car that has the clutch disc partially worn.
La Figura 7, es un elemento representado aisladamente en deta le.Figure 7 is an element depicted in detail in detail.
En el texto que sigue se ha considerado como parte posterior del dispositivo la más próxima al pedal de mando, que es la situada en la zona inferior de as ho¬ jas de dibujos. Correspondientemente, la parte delante- ra del dispositivo es la más próxima a la caja de cam¬ bios del motor, y es la situada en la zona superior de la hoja de dibujos.In the text that follows, the back of the device is considered to be the one closest to the control pedal, which is the one located in the lower area of the drawings. Correspondingly, the front part of the device is the closest to the engine gearbox, and is located in the upper area of the drawing sheet.
Descripción detallada del ejemplo de realización El dispositivo autorregulable para cables de mando de embragues objeto de la invención y que como ejemplo de realización se describe, se encuentra constituido por el cuerpo principal 1 (Figuras 1, 2, 3, 5, 6) de forma esencialmente cilindrica al cual se encuentra firmemente unida la extensión guiadora 2 que tiene también forma esencialmente cilindrica.Detailed description of the embodiment example The self-regulating device for clutch control cables object of the invention and which as an example of embodiment is described, is constituted by the main body 1 (Figures 1, 2, 3, 5, 6) so essentially cylindrical to which the guiding extension 2 is also firmly attached which also has a shape essentially cylindrical
En el cuerpo principal 1 se aloja la pinza de en¬ ganche 3 firmemente unida a la porción de cable 4 que conecta el dispositivo autorregulable objeto de la in¬ vención al correspondiente pedal de mando del vehículo a través del orificio pasante 5 dispuesto en el extremo posterior (inferior en los dibujos) del cuerpo principal 1.In the main body 1 the hook clip 3 is firmly connected to the cable portion 4 that connects the self-regulating device object of the invention to the corresponding control pedal of the vehicle through the through hole 5 arranged at the end posterior (lower in the drawings) of the main body 1.
En el extremo posterior del cuerpo principal 1 hay un terminal de funda 6 en el cual penetra el extremo de la funda 7 de la porción de cable 4.At the rear end of the main body 1 is a sheath terminal 6 into which the sheath end 7 of the cable portion 4 penetrates.
Dicho cuerpo principal 1 también contiene el vasta¬ go de enganche 8 que se encuentra firmemente unido a la porción de cable 9 que se dirige hacia el mecanismo de embrague del vehículo.Said main body 1 also contains the coupling rod 8 which is firmly connected to the cable portion 9 that is directed towards the clutch mechanism of the vehicle.
La extensión guiadora 2 (Figuras 1 a 6 ) es muy ca¬ racterística y determina fundamentalmente el funciona¬ miento perfeccionado del dispositivo según la invención. Dicha extensión guiadora 2 tiene dos ventanas laterales longitudinales 10a y 10b, enfrentadas entre sí, que en magnitud se extienden abarcando casi la total longitud de la propia extensión guiadora 2. Atravesando dichas dos ventanas 10a y 10b (Figuras 3 y 4) hay en el inte¬ rior de la extensión guiadora 2 la palanca transversal 11, de modo que salen al exterior los dos extremos 11a y 11b, sobre los cuales se acopla, solidariamente, el casquillo circular 12 que rodea exteriormente, con ajuste libre, la extensión guiadora 2 de manera que pue¬ de deslizar a lo largo de la misma. En el extremo poste¬ rior de la extensión guiadora 2, donde se acopla con el cuerpo principal 1, se configura un escalón 13 que actúa de límite posterior al recorrido posible del conjunto solidario formado por la palanca transversal 11 y el casquillo circular 12.The guiding extension 2 (Figures 1 to 6) is very characteristic and fundamentally determines the improved operation of the device according to the invention. Said guiding extension 2 has two longitudinal side windows 10a and 10b, facing each other, which in magnitude extend covering almost the total length of the guiding extension itself 2. Crossing said two windows 10a and 10b (Figures 3 and 4) there are in the inside the guide extension 2 the transverse lever 11, so that the two ends 11a and 11b come out on the outside, on which the circular bushing 12 externally surrounds, with free adjustment, the guide extension 2 so that it can slide along it. At the rear end of the guide extension 2, where it engages with the main body 1, a step 13 is formed which acts of limit after the possible travel of the joint assembly formed by the transverse lever 11 and the circular bushing 12.
La palanca transversal 11 tiene en su parte central un orificio pasante 14 a través del cual pasa libremente la porción de cable 9, y en el extremo delantero de la extensión guiadora 2 hay el terminal de funda 15 con el orificio pasante 16 por el cual también pasa libremente dicha porción de cable 9.The transverse lever 11 has in its central part a through hole 14 through which the cable portion 9 freely passes, and at the leading end of the guiding extension 2 there is the sheath terminal 15 with the through hole 16 through which also freely pass said cable portion 9.
Dicho orificio pasante 14 dispuesto en la palanca transversal 11 tiene, en este ejemplo de realización del dispositivo objeto de la invención, un diámetro o amplitud menor a la amplitud de la cabeza 8a del vasta¬ go de enganche 8, siendo precisamente en la cabeza 8a citada donde se encuentra firmemente unida la porción de cable 9 que enlaza el dispositivo objeto de la invención con el mecanismo de embrague del vehículo.Said through hole 14 arranged in the transverse lever 11 has, in this exemplary embodiment of the device object of the invention, a diameter or amplitude smaller than the amplitude of the head 8a of the coupling rod 8, being precisely in the head 8a cited where the cable portion 9 that links the device object of the invention with the vehicle clutch mechanism is firmly connected.
En el terminal de funda 15 penetra el extremo pos¬ terior de la funda 17 correspondiente a la porción de cable 9, donde dicha funda 17 queda firmemente unida a la extensión guiadora 2.The rear end of the sheath 17 corresponding to the cable portion 9 penetrates into the sheath terminal 15, where said sheath 17 is firmly attached to the guiding extension 2.
Tal como se ve en las Figuras 1, 2, 3, 5 y 6, el resorte estabilizador 18 va guiado internamente en su porción posterior por la extensión guiadora 2 quedando libre su porción delantera para poder doblegarse de forma discrecional. El extremo delantero de dicho re¬ sorte estabilizador 18 se apoya en un aro de retención 19 que se encuentra firmemente unido a la funda 17 de la porción de cable 9, mientras que el extremo posterior de dicho resorte estabilizador 18 actúa permanentemente a través del casquillo circular 12 contra la palanca transversal 11.As seen in Figures 1, 2, 3, 5 and 6, the stabilizer spring 18 is guided internally in its rear portion by the guide extension 2, its front portion being free to be able to bend in a discretionary manner. The front end of said stabilizer spring 18 rests on a retaining ring 19 that is firmly attached to the sheath 17 of the cable portion 9, while the rear end of said stabilizer spring 18 acts permanently through the bushing. move 12 against the lever cross 11.
De este modo la palanca transversal 11 actúa a su vez de forma permanente sobre la cabeza 8a del vastago de enganche 8 en el intervalo determinado por la dis¬ tancia existente entre el escalón 13 y la máxima posi¬ ción hacia delante que puede llegar a ocupar el vastago de enganche 8, posición que vendrá dada de forma progre¬ siva en la medida en que se produzca el desgaste de la guarnición del disco de embrague, o sea que la palanca transversal 11 es conducida por el vastago de enganche 8 en sus desplazamientos por el interior de la extensión guiadora 2.In this way the transverse lever 11 acts in turn permanently on the head 8a of the coupling rod 8 in the interval determined by the distance between the step 13 and the maximum forward position that it can occupy. the hitch rod 8, a position that will be given progressively as long as the clutch disc lining is worn, that is, the cross lever 11 is driven by the hitch rod 8 in its displacements inside the guiding extension 2.
La Figura 2 de las hojas de dibujos correspondien¬ tes a este ejemplo de realización del dispositivo obje¬ to de la invención muestra la disposición adoptada para establecer una prolongación que confiere una mayor lon¬ gitud a la parte flexible del conjunto del dispositivo. Dicha prolongación tiene por finalidad incrementar en mayor medida el número de posibilidades en cuanto a e- lección del punto de instalación o montaje del disposi¬ tivo, facilitando de este modo su adaptación en el vehí¬ culo y sin que ello afecte en modo alguno a la operati- vidad del dispositivo.Figure 2 of the drawing sheets corresponding to this exemplary embodiment of the device object of the invention shows the arrangement adopted to establish an extension that confers a greater length to the flexible part of the device assembly. The purpose of this extension is to increase the number of possibilities in terms of the installation or assembly point of the device to a greater extent, thus facilitating its adaptation in the vehicle and without affecting in any way the operation of the device.
También en la Figura 2 puede verse que el aro de retención 19, contra el cual reacciona el resorte esta¬ bilizador 18, se encuentra a una relativamente reducida distancia del extremo delantero de la porción guiadora 2 prolongándose la porción de cable 9 y la funda 17 hasta alcanzar el terminal T, encontrándose constituido dicho terminal J por un terminal de funda 20, un amorti¬ guador 21 y por medios rígidos envolventes 22, cuales medios rígidos 22 permiten el enganche del terminal T en un punto fijo de la estructura del vehículo, prolon¬ gándose a partir de dicho punto la porción de cable 9 desprovista de funda hasta conectar con el mecanismo de embrague a través de medios adecuados.Also in Figure 2 it can be seen that the retaining ring 19, against which the stabilizing spring 18 reacts, is at a relatively short distance from the leading end of the guiding portion 2 with the cable portion 9 and the sheath 17 extending until terminal T is reached, said terminal J being constituted by a sheath terminal 20, a shock absorber 21 and by rigid enveloping means 22, which rigid means 22 allows the coupling of terminal T in a fixed point of the structure of the vehicle, the cable portion 9 devoid of sheath extending from said point until connecting with the clutch mechanism through suitable means.
Otro ejemplo de realización sería aquel en el cual el resorte estabilizador 18 reaccionase directamente so¬ bre el propio terminal T situado en un punto fijo de la estructura del vehículo, con lo que en este caso la longitud total del dispositivo objeto de la invención sería la mínima posible. Esto significa que el aro de retención 19 y el terminal T son la misma pieza. Por consiguiente, en las Figuras 1, 3, 5 y 6 la referencia 19 señala de manera expresamente ambigua un elemento (aro de retención 19) que puede ser pieza única, o sea puede ser también terminal T, o bien puede ser cooperan¬ te con un terminal I separado y no representado.Another example of embodiment would be one in which the stabilizer spring 18 reacts directly on the terminal T itself located at a fixed point of the vehicle structure, whereby in this case the total length of the device object of the invention would be the minimum possible. This means that the retaining ring 19 and the terminal T are the same piece. Therefore, in Figures 1, 3, 5 and 6, reference 19 expressly indicates ambiguously an element (retaining ring 19) that can be a single piece, that is, it can also be terminal T, or it can be cooperative. with a separate and not represented terminal I.
En el ejemplo de realización del dispositivo obje- to de la invención que aquí se describe el resorte esta¬ bilizador 18 se encuentra en su totalidad protegido por la cubierta exterior flexible 23, (Figuras 1, 2, 3, 5, 6) encontrándose el extremo delantero de dicha cubierta exterior flexible 23 firmemente unido al aro de reten- ción 19, mientras que su extremo posterior se encuentra firmemente unido al extremo delantero del cuerpo prin- cipal 1.In the exemplary embodiment of the device object of the invention described herein, the stabilizer spring 18 is fully protected by the flexible outer cover 23, (Figures 1, 2, 3, 5, 6), where the front end of said flexible outer cover 23 firmly attached to the retaining ring 19, while its rear end is firmly connected to the front end of the main body 1.
La pinza de enganche 3 que está representada en las Figuras 1 a 6 está constituida integramente en material plástico, tal como resina aceta! ica, adecuada para soportar temperaturas ambientales aproximadamente igua¬ les o inferiores a 110°C. Dicha pinza de enganche 3, representada en las Figuras 1, 2, 3, 5 y 6, está com- puesta por dos brazos 3a enfrentados entre sí en cuyos extremos delanteros libres se encuentran firmemente unidas correspondientes mordazas 3b dotadas de respecti¬ vos fileteados de enganche, cuales fileteados lógicamen¬ te se corresponden con el fileteado del vastago de enganche 8 a fin de lograr un adecuado acoplamiento o enganche entre ambas mordazas 3b y el vastago de engan¬ che 8 cuando es accionado el pedal de mando al que se encuentra conectado el dispositivo.The clamp 3 that is represented in Figures 1 to 6 is constituted entirely of plastic material, such as aceta resin! ica, suitable to withstand ambient temperatures approximately equal to or below 110 ° C. Said coupling clip 3, represented in Figures 1, 2, 3, 5 and 6, is composed of two arms 3a facing each other in whose Free front ends are attached together corresponding jaws 3b provided with respective threaded engagement, which threaded logically correspond to the threaded coupling rod 8 in order to achieve an adequate coupling or engagement between both jaws 3b and the rod with hook 8 when the control pedal to which the device is connected is activated.
Para poder trabajar correctamente en ambientes de temperaturas más elevadas, comprendidas entre 115°C y 140°C, la invención prevé otro modo de realización. Según este otro modo de realización la pinza de enganche 24, representada en la Figura 7, está compuesta por dos brazos 24a y correspondientes mordazas 24b que son precisamente metálicas. En este ejemplo de realización de la Figura 7, los brazos 24a son obtenidos a partir de chapa de acero de elevada flexibilidad, mientras que as mordazas 24b son obtenidas a partir de una aleación zamak, todo lo cual confiere tanto a las mordazas 24a como a los brazos 24b de la pinza de enganche 24 una práctica inalterabilidad mecánica a elevadas temperatu¬ ras y desde luego a las temperaturas que aqui se consi¬ deran. Se comprende que la pinza de enganche 24 sus bra- zos 24a y sus mordazas 24b se comportan mecánicamente de manera idéntica a la pinza de enganche 3, los brazos 3a y las mordazas 3b.In order to be able to work correctly in higher temperature environments, between 115 ° C and 140 ° C, the invention provides another embodiment. According to this other embodiment, the coupling clip 24, shown in Figure 7, is composed of two arms 24a and corresponding jaws 24b which are precisely metallic. In this example of embodiment of Figure 7, the arms 24a are obtained from high-flexibility steel sheet, while jaws 24b are obtained from a zamak alloy, all of which confer both jaws 24a and the arms 24b of the coupling clip 24 a practical mechanical inalterability at high temperatures and of course at the temperatures considered here. It is understood that the hitch clip 24 its arms 24a and its jaws 24b behave mechanically identically to the hitch clip 3, the arms 3a and the jaws 3b.
La Figura 1 de las hojas de dibujos muestra el dis- positivo autorregulable para cables de mando de embra¬ gues objeto de la invención previo a su instalación en un vehículo, detallando la posición ocupada en este ca¬ so por el vastago de enganche 8 y la pinza de enganche Con objeto de evitar enganches extemporáneos entre dicho vastago de enganche 8 y la pinza de enganche 3 du¬ rante la manipulación del dispositivo previamente a su instalación en un vehículo, dicho vastago de enganche 8 dispone en la cabeza 8a y en la zona inmediata próxima al inicio del fileteado de enganche de una estrecha poi— ción anular cónica 8b de superficie lisa y que disminu¬ ye de diámetro desde delante hacia atrás.Figure 1 of the drawing sheets shows the self-regulating device for clutch control cables object of the invention prior to installation in a vehicle, detailing the position occupied in this case by the hitch rod 8 and the hitch clip In order to avoid extemporaneous hooks between said hitch rod 8 and the hitch clip 3 during handling of the device prior to installation in a vehicle, said hitch rod 8 has head 8a and in the immediate area next to the vehicle. start of the filleting of the hitch of a narrow conical annular position 8b with a smooth surface and which decreases in diameter from front to back.
De este modo el fileteado de las mordazas 3b de la pinza de enganche 3 queda enfrentado a dicha porción a- nu ar cónica 8b del vastago de enganche 8, cual vastago de enganche 8 ocupa esta posición por la acción del re¬ sorte estabilizador 18 contra la palanca transversal 11 a través del casquillo circular 12 al que se encuentra unida, impidiendo que en el caso de que accidentalmente se actuase sobre la porción de cable 4, que conecta el dispositivo objeto de la invención con el pedal de man¬ do correspondiente, se produjese el enganche fortuito entre el vastago de enganche 8 y la pinza de enganche 3.In this way the filleting of the jaws 3b of the coupling clip 3 is facing said conical annular portion 8b of the coupling rod 8, which coupling rod 8 occupies this position by the action of the stabilizing spring 18 against the transverse lever 11 through the circular bushing 12 to which it is attached, preventing it from accidentally acting on the cable portion 4, which connects the device object of the invention with the corresponding control pedal, there was a fortuitous hitch between the hitch rod 8 and the hitch clip 3.
En la Figura 2 de las hojas de dibujos correspon¬ dientes a este ejemplo de realización muestra el dispo¬ sitivo objeto de la invención recién instalado en un ve- hículo o bien con un desgaste del disco de embrague mí¬ nimo, detallándose la posición relativamente avanzada del vastago de enganche 8 respecto de las mordazas 3b de la pinza de enganche 3, hasta el punto en que ambos fileteados, el del vastago de enganche 8 y el de las mordazas 3b, se encuentran enfrentados y en condiciones de poder engancharse al ser accionado el pedal del em¬ brague.In Figure 2 of the drawing sheets corresponding to this exemplary embodiment, it shows the device object of the invention newly installed in a vehicle or with minimal wear of the clutch disc, the position being relatively detailed advanced of the hitch rod 8 with respect to the jaws 3b of the hitch clamp 3, to the point where both threaded, that of the hitch rod 8 and that of the jaws 3b, are facing and in a position to be able to engage clutch pedal operated.
El ajuste de la posición inicial del vastago de enganche 8, detallada anteriormente, se lleva a cabo durante las operaciones de montaje en el vehículo del dispositivo mediante mecanismos de tecnología conocida.The adjustment of the initial position of the coupling rod 8, detailed above, is carried out during the assembly operations in the vehicle of the device by means of mechanisms of known technology.
La Figura 3 muestra el dispositivo objeto de la invención instalado en un vehículo y donde se detalla la posición ocupada por las mordazas 3b de la pinza de enganche 3 una vez iniciado su recorrido por el interior del cuerpo principal 1 al ser accionado el pedal de mando.Figure 3 shows the device object of the invention installed in a vehicle and where the position occupied by the jaws 3b of the clamp 3 is detailed once it has started its journey through the interior of the main body 1 when the control pedal is operated .
Igual posición relativa puede ocupar la pinza de enganche 3 cuando al cesar la acción sobre el pedal de mando el vastago de enganche 8 retorna a su posición de reposo arrastrando a dicha pinza de enganche 3, con la cual se encuentra unido por la acción de sus respectivos fileteados de enganche, hasta el punto en que por la acción de los brazos 3a de la pinza de enganche 3 las mordazas 3b quedan ubicadas en el emplazamiento previsto en el interior del cuerpo principal 1.The same relative position can be occupied by the hitch clip 3 when the action on the control pedal ceases, the hitch rod 8 returns to its resting position by dragging said hitch clip 3, with which it is connected by the action of its respective filleting hooks, to the point where the jaws 3b are located at the location provided inside the main body 1 by the action of the arms 3a of the clamp 3.
La posición final ocupada por el vastago de engan¬ che 8 y por la pinza αe enganche 3 debido a la acción sobre el pedal de mando al que dicha pinza de enganche 3 se encuentra unido por la porción de cable 4 queda de- tallada en la Figura 5 de las hojas de dibujos corres¬ pondientes a este ejemplo de realización del objeto de la invención.The final position occupied by the coupling rod 8 and by the clamp αe hook 3 due to the action on the control pedal to which said clamp clip 3 is connected by the cable portion 4 is detailed in the Figure 5 of the drawing sheets corresponding to this exemplary embodiment of the object of the invention.
Es en la Figura 6 donde se detalla particularmente la posición de reposo ocupada por el vastago de enganche 8 cuando se ha producido un cierto desgaste de la guarnición del disco de embrague, posición esta que es más adelantada que la posición que ocupa dicho vastago de enganche 8 cuando el disco de embrague es nuevo o sin αesgaste apreciable tal y como muestra la Figura 1, y donde también es detallada la posición ocupada por la palanca tranversal 11 firmemente unida al casquillo cir¬ cular 12, que como se ha indicado anteriormente acompa¬ ñan a dicho vastago de enganche 8 en sus desplazamientos a través de la extensión guiadora 2 por la acción del resorte estabilizador 18, en dicha Figura 6 de las hojas de dibujos correspondientes a este ejemplo de realiza¬ ción se detalla asimismo que los fileteados de enganche de las mordazas 3a y del vastago de enganche 8 se encuentran continuamente entre sí enfrentados y ope¬ rativos del modo que se ha descrito anteriormente. It is in Figure 6 where the resting position occupied by the hitch rod 8 is particularly detailed when there has been some wear of the clutch disc lining, position which is more advanced than the position occupied by said hitch rod 8 when the clutch disc is new or without α was appreciable as shown in Figure 1, and where the position occupied by the transverse lever 11 firmly connected to the circular bush 12 is also detailed, which as indicated above accompanies said coupling rod 8 in its displacements through the guide extension 2 by the action of the stabilizer spring 18, in said Figure 6 of the drawing sheets corresponding to this exemplary embodiment, it is also detailed that the hook fillets of the jaws 3a and of the hook rod 8 are continuously facing each other and operative of the mode as described above.

Claims

R E I V I N D I C A C I O N E S
1.- Dispositivo autorregulable para cables de mando de embragues del tipo de los constituidos por un cuerpo principal ( 1 ) de forma esencialmente cilindrica que con¬ tiene una pinza de enganche (3) que mediante una porción de cable (4) que sale por el extremo posterior del citado cuerpo principal (1) se encuentra unida al pedal de mando, y un vastago de enganche (8) que mediante una porción de cable (9) que sale por el extremo delantero está unido al mecanismo de embrague, hallándose enfren¬ tados los dientes de la pinza (3) a los dientes del vas¬ tago (8), y siendo dichos pinza (3) y vastago (8) capa¬ ces de desplazarse longitudinalmente por el interior del cuerpo principal (1) tanto independientemente como conjuntamente para acoplarse entre sí, y se caracteriza por comprender: una extensión guiadora (2) internamente hueca provista de ventanas laterales longitudinales (10a, 10b), que se encuentra unida firmemente al extre- mo delantero del cuerpo principal ( . ) , la cual es atra¬ vesada longitudinalmente por la porción de cable (9) que une el vastago de enganche (8) con el mecanismo de embrague; una palanca transversal (11) que sobresale al exterior de la extensión guiadora (2) atravesando las ventanas laterales longitudinales (10a, 10b) y que en la parte interior está rodeando, sin ajuste, a la porción de cable (9) citada; y un resorte estabilizador (18) externo guiado por la extensión guiadora (2) cuyo extremo delantero apoya contra un tope fijo (T) soli- dario con la funda (17) de la misma porción de cable (9) situado en la zona más delantera del dispositivo, y cuyo extremo posterior actúa permanentemente contra la parte exterior de la palanca transversal (11).1.- Self-regulating device for clutch control cables of the type consisting of a main body (1) of essentially cylindrical shape that has a clamp (3) that through a portion of cable (4) that comes out the rear end of said main body (1) is attached to the control pedal, and a coupling rod (8) which, by means of a cable portion (9) coming out from the front end, is attached to the clutch mechanism, being found to cool ¬ tightened the teeth of the clamp (3) to the teeth of the rod (8), and said clamps (3) and rod (8) being able to move longitudinally through the interior of the main body (1) both independently as together to engage each other, and is characterized by comprising: an internally hollow guide extension (2) provided with longitudinal side windows (10a, 10b), which is firmly attached to the leading end of the main body (.), the what is s longitudinally traversed by the cable portion (9) that joins the hitch rod (8) with the clutch mechanism; a transverse lever (11) protruding outside the guiding extension (2) through the longitudinal side windows (10a, 10b) and which in the inner part is surrounding, without adjustment, the mentioned cable portion (9); and an external stabilizer spring (18) guided by the guide extension (2) whose front end rests against a fixed stop (T) integral with the sheath (17) of the same cable portion (9) located in the most area front of the device, and whose rear end acts permanently against the outside of the cross lever (11).
2.- Dispositivo autorregulable para cables de mando de embragues según la reivindicación 1), que se caracteri¬ za por el hecho de que la palanca transversal (11) se encuentra acoplada a un casquillo circular (12) que sir¬ ve de apoyo idóneo para el extremo presor del resorte estabi izador (18), estando situado dicho casquillo cir¬ cular (12) alrededor de la cara externa de la extensión guiadora (2), ajustando suavemente para poder deslizar a lo largo de la misma.2.- Self-regulating device for control cables clutches according to claim 1), characterized in that the transverse lever (11) is coupled to a circular bushing (12) which serves as a suitable support for the pressor end of the setting spring (18) ), said circular bushing (12) being located around the outer face of the guiding extension (2), adjusting gently so that it can slide along it.
3.- Dispositivo autorregulable para cables de mando de embragues según las reivindicaciones 1) y 2), que se ca¬ racteriza por el hecho de que el extremo delantero de la extensión guiadora (2) está equipado con un terminal de funda (15) en el cual penetra el final de la funda (17) de la porción de cable (9) que une el vastago de engan¬ che (8) con el mecanismo de embrague, cual porción de cable (9) a partir de dicho terminal (15) queda des¬ provista de funda en toαo el trayecto hacia atrás que queda hasta unirse con el vastago de enganche (8).3. Self-regulating device for clutch control cables according to claims 1) and 2), which is characterized by the fact that the leading end of the guide extension (2) is equipped with a sheath terminal (15) in which the end of the sheath (17) of the cable portion (9) that joins the coupling rod (8) with the clutch mechanism penetrates, which wire portion (9) from said terminal ( 15) the path backwards remaining until it joins the coupling rod (8) is provided with a cover.
4.- Dispositivo autorregulable para cables de mando de embragues según las reívinαicaciones 1) a 3), que se ca¬ racteriza por el hecho de que el tope fijo (T) contra el cual reacciona el resorte estabilizador (18) está constituido por un casquillo circular provisto de cuan¬ to menos un escalón para recibir el extremo delantero del resorte estabilizador (18).4.- Self-regulating device for clutch control cables according to claims 1) to 3), which is characterized by the fact that the fixed stop (T) against which the stabilizing spring (18) reacts is constituted by a circular bushing provided with at least one step to receive the front end of the stabilizer spring (18).
5.- Dispositivo autorregulable para cables de mando de embragues según la reivindicación 4), que se caracteri¬ za por el hecho de que el tope fijo (T) está equipado con un terminal de funda (20) y medios rígidos envolven¬ tes (22), eventualmente equipados con medios de amorti¬ guación (21), destinados a permitir su enganche en un punto fijo de la estructura del vehículo. 5. Self-regulating device for clutch control cables according to claim 4), characterized in that the fixed stop (T) is equipped with a sheath terminal (20) and rigid enveloping means ( 22), eventually equipped with damping means (21), intended to allow it to be attached at a fixed point in the structure of the vehicle.
6.- Dispositivo autorregulable para cables de mando de embragues según la reivindicación 4), que se caracteri¬ za por el hecho de que el tope fijo (T) esta constitui- do por dos piezas separadas enlazadas por la funda (17) del cable (9) unida a ambas, estableciendo una prolonga¬ ción que confiere mayor longitud a la parte flexible del conjunto del dispositivo, estando equipada la pieza más delantera con un terminal de funda (20) y medios rígidos envolventes (22), eventualmente equipados con medios de amortiguación (21), destinados a permitir su enganche en un punto fijo de la estructura del vehículo.6. Self-regulating device for clutch control cables according to claim 4), characterized in that the fixed stop (T) is constituted by two separate parts linked by the cable sheath (17) (9) joined to both, establishing an extension that confers greater length to the flexible part of the device assembly, the most forward part being equipped with a sheath terminal (20) and rigid enveloping means (22), eventually equipped with damping means (21), intended to allow its attachment at a fixed point in the structure of the vehicle.
7.- Dispositivo autorregulable para cables de mando de embragues según una cualquiera de las reivindicaciones anteriores, que se caracteriza por el hecho de que el orificio central (14) de la palanca transversal (11) que rodea sin ajuste la porción de cable (9) que une el vastago de enganche (8j con el mecanismo de embrague tiene diámetro o amplitud menor a la amplitud de la ca¬ beza (8a) del citado" vastago (8), para que al desplazar¬ se éste hacia adelante empuje, arrastrándola, a la pa¬ lanca transversal (11 j citada.7. Self-regulating device for clutch control cables according to any one of the preceding claims, characterized in that the central hole (14) of the transverse lever (11) that surrounds the cable portion (9) without adjustment. ) that joins the coupling rod (8j with the clutch mechanism has a diameter or amplitude smaller than the amplitude of the head (8a) of said " rod " (8), so that when it moves forward it pushes forward, dragging it , to the transverse lever (11 j cited.
8.- Dispositivo autorregulable para cables de mando de embragues según una cualquiera de las reivindicaciones anteriores, que se caracteriza por el hecho de que la cabeza (8a) del vastago de enganche (8), en la zona in¬ mediata próxima al inicio del dentado de enganche, pre- senta una estrecha porción anular cónica (8b) de supeí— ficie lisa, que disminuye de diámetro desde delante ha¬ cia atrás, la cual en la posición de máxima penetración del vastago de enganche (8) queda enfrentado al dentado de la pinza de enganche (3). 8. Self-regulating device for clutch control cables according to any one of the preceding claims, characterized in that the head (8a) of the coupling rod (8), in the immediate area near the beginning of the toothed, it has a narrow conical annular portion (8b) of smooth surface, which decreases in diameter from the front to the rear, which in the position of maximum penetration of the coupling rod (8) faces the serrated clamp hitch (3).
9.- Dispositivo autorregulable para cables de mando de embragues según una cualquiera de las reivindicaciones anteriores, que se caracteriza por el hecho de que la cubierta exterior flexible (23) en forma de fuelle cubre toda la longitud del resorte estabilizador (18), te¬ niendo su extremo delantero unido al tope fijo (T) y te¬ niendo unido su extremo posterior al extremo delantero del cuerpo principal (1).9. Self-regulating device for clutch control cables according to any one of the preceding claims, characterized in that the flexible outer cover (23) in the form of a bellows covers the entire length of the stabilizing spring (18), te ¬ n its front end attached to the fixed stop (T) and its rear end attached to the front end of the main body (1).
10.- Dispositivo autorregulable para cables de mando de embragues según una cualquiera de las reivindicaciones anteriores, que se caracteriza porque la pinza de engan¬ che (3) es unipieza y está completamente construida a base de material plástico.10. Self-regulating device for clutch control cables according to any one of the preceding claims, characterized in that the hook clamp (3) is unipieza and is completely constructed based on plastic material.
11.- Dispositivo autorregulable para cables de mando de embragues según una cualquiera de as reívindciaciones 1) a 9), que se caracteriza por el hecho de que la pin¬ za de enganche (24) se encuentra constituida por brazos flexibles (24a) que arrancan de un tronco posterior co¬ mún, preferiblemente dos brazos, cuyos extremos delante¬ ros libres tienen firmemente unidos correspondientes mordazas (24b) dotadas de respectivos fileteados de en¬ ganche, cuales componentes, brazos (24a) y mordazas (24b), son precisamente metálicos, y más especialmente son de metales distintos, siendo el metal constitutivo de las mordazas (24b) capaz de mantener prácticamente invariables sus propiedades mecánicas a elevadas tem¬ peraturas, como mínimo hasta 160°C.11.- Self-regulating device for clutch control cables according to any one of the claims 1) to 9), which is characterized by the fact that the hitch clip (24) is constituted by flexible arms (24a) that they start from a common rear trunk, preferably two arms, whose free front ends have firmly attached corresponding jaws (24b) provided with respective hooked threads, which components, arms (24a) and jaws (24b), are precisely metal, and more especially they are made of different metals, being the constituent metal of the jaws (24b) capable of maintaining almost invariably its mechanical properties at high temperatures, at least up to 160 ° C.
12.- Dispositivo autorregulable para cables de mando de embragues según la reivindicación 11) que se caracteri¬ za por el hecho de que los brazos (24a) de la pinza de enganche (24) son obtenidos a partir de chapa de acero de elevada flexibilidad, siendo obtenidas las correspon- dientes mordazas (24b) a partir de una aleación de Alu¬ minio, Cobre y Cinc, o sea una aleación Zamac. 12. Self-regulating device for clutch control cables according to claim 11) characterized by the fact that the arms (24a) of the coupling clip (24) are obtained from high-flexibility steel sheet , the corresponding ones being obtained jaw teeth (24b) from an alloy of Aluminum, Copper and Zinc, that is, a Zamac alloy.
PCT/ES1990/000020 1989-06-26 1990-06-25 Self-adjustable device for clutch control cables WO1991000435A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES8902231A ES2014678A6 (en) 1989-06-26 1989-06-26 Self-adjustable device for clutch control cables
ES8902231 1989-06-26

Publications (1)

Publication Number Publication Date
WO1991000435A1 true WO1991000435A1 (en) 1991-01-10

Family

ID=8262734

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES1990/000020 WO1991000435A1 (en) 1989-06-26 1990-06-25 Self-adjustable device for clutch control cables

Country Status (3)

Country Link
AU (1) AU5947490A (en)
ES (1) ES2014678A6 (en)
WO (1) WO1991000435A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR366246A (en) * 1906-05-15 1906-09-29 Henry Bauchet Progressive adjustment mechanism with control cable
GB2016634A (en) * 1978-03-17 1979-09-26 Ferodo Sa Wear compensating device for a transmission linkage
US4378713A (en) * 1980-06-10 1983-04-05 Acco Industries Inc. Self-adjusting cable control device
EP0254581A1 (en) * 1986-07-23 1988-01-27 Acco Cable Controls Limited Mechanical cable control adjustment device and method for the initial adjustment thereof
FR2611832A3 (en) * 1987-03-04 1988-09-09 Sila Telecomandi Srl Device for adjusting the operating tension of flexible controls, in particular of flexible controls for motor vehicles
EP0312382A2 (en) * 1987-10-14 1989-04-19 Babcock Industries Inc. Control cable adjuster device
GB2210946A (en) * 1987-10-09 1989-06-21 Pujol & Tarago Automatic length adjuster for control cables

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR366246A (en) * 1906-05-15 1906-09-29 Henry Bauchet Progressive adjustment mechanism with control cable
GB2016634A (en) * 1978-03-17 1979-09-26 Ferodo Sa Wear compensating device for a transmission linkage
US4378713A (en) * 1980-06-10 1983-04-05 Acco Industries Inc. Self-adjusting cable control device
EP0254581A1 (en) * 1986-07-23 1988-01-27 Acco Cable Controls Limited Mechanical cable control adjustment device and method for the initial adjustment thereof
FR2611832A3 (en) * 1987-03-04 1988-09-09 Sila Telecomandi Srl Device for adjusting the operating tension of flexible controls, in particular of flexible controls for motor vehicles
GB2210946A (en) * 1987-10-09 1989-06-21 Pujol & Tarago Automatic length adjuster for control cables
EP0312382A2 (en) * 1987-10-14 1989-04-19 Babcock Industries Inc. Control cable adjuster device

Also Published As

Publication number Publication date
AU5947490A (en) 1991-01-17
ES2014678A6 (en) 1990-07-16

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