WO1995030839A1 - Dispositif d'auto-ajustement de la longueur de cables de commande - Google Patents

Dispositif d'auto-ajustement de la longueur de cables de commande Download PDF

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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
Authority
WO
WIPO (PCT)
Prior art keywords
main body
self
rod
adjusting device
regulating rod
Prior art date
Application number
PCT/ES1995/000037
Other languages
English (en)
Spanish (es)
Inventor
Carlos Gabas Cebollero
Original Assignee
Fico Cables, 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 Fico Cables, S.A. filed Critical Fico Cables, S.A.
Priority to AU21387/95A priority Critical patent/AU2138795A/en
Publication of WO1995030839A1 publication Critical patent/WO1995030839A1/fr

Links

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.

Landscapes

  • 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

Ce dispositif d'auto-ajustement (D) comprend un corps principal (3) pourvu de moyens (MA) pour sa fixation en un point fixe (F), une tige de régulation (4) pourvue de moyens (12p, 15) pour son assujetissement à une extrémité (CD) du fourreau (16) du câble d'acier (6) et où est logé partiellement le corps principal (3), ainsi que des moyens de retenue (MR). Les moyens de retenue (MR) comprennent, dans le corps principal (3), un filetage (17) avec un profil en dents de scie, et dans la tige (4), un manchon de fixation (18) pourvu de moyens de guidage (MG) qui permettent à la tige (4) de se déplacer dans les deux sens par vissage, et qui peut se déplacer dans le sens dans lequel la tige (4) reçoit majoritairement le corps principal (3) par déformation élastique des moyens de guidage (MG). Application à l'industrie automobile.
PCT/ES1995/000037 1994-05-09 1995-04-05 Dispositif d'auto-ajustement de la longueur de cables de commande WO1995030839A1 (fr)

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 (es) 1994-05-09 1994-05-09 Dispositivo autoajustador de la longitud de cables de mando.

Publications (1)

Publication Number Publication Date
WO1995030839A1 true WO1995030839A1 (fr) 1995-11-16

Family

ID=8286151

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES1995/000037 WO1995030839A1 (fr) 1994-05-09 1995-04-05 Dispositif d'auto-ajustement de la longueur de cables de commande

Country Status (3)

Country Link
AU (1) AU2138795A (fr)
ES (1) ES2115444B1 (fr)
WO (1) WO1995030839A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0774591A2 (fr) * 1995-11-18 1997-05-21 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Dispositif de tension de câbles de commande
EP0863320A1 (fr) * 1997-03-04 1998-09-09 ROLTRA MORSE S.p.A. Dispositif de réglage du jeu axial dans une transmission par câble
CN103527611A (zh) * 2013-10-28 2014-01-22 力帆实业(集团)股份有限公司 汽车选换挡用软轴
CN104847777A (zh) * 2014-12-17 2015-08-19 北汽福田汽车股份有限公司 一种拉索调节组件及具有其的车辆

Citations (2)

* Cited by examiner, † Cited by third party
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 (fr) * 1986-02-14 1987-09-02 Acco Babcock Inc. Dispositif d'ajustement pour câble de commande

Patent Citations (2)

* Cited by examiner, † Cited by third party
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 (fr) * 1986-02-14 1987-09-02 Acco Babcock Inc. Dispositif d'ajustement pour câble de commande

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0774591A2 (fr) * 1995-11-18 1997-05-21 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Dispositif de tension de câbles de commande
EP0774591A3 (fr) * 1995-11-18 1998-01-07 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Dispositif de tension de câbles de commande
EP0863320A1 (fr) * 1997-03-04 1998-09-09 ROLTRA MORSE S.p.A. Dispositif de réglage du jeu axial dans une transmission par câble
CN103527611A (zh) * 2013-10-28 2014-01-22 力帆实业(集团)股份有限公司 汽车选换挡用软轴
CN104847777A (zh) * 2014-12-17 2015-08-19 北汽福田汽车股份有限公司 一种拉索调节组件及具有其的车辆

Also Published As

Publication number Publication date
AU2138795A (en) 1995-11-29
ES2115444A1 (es) 1998-06-16
ES2115444B1 (es) 1999-02-16

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