WO1994018469A1 - Cables de commande - Google Patents

Cables de commande Download PDF

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Publication number
WO1994018469A1
WO1994018469A1 PCT/GB1994/000250 GB9400250W WO9418469A1 WO 1994018469 A1 WO1994018469 A1 WO 1994018469A1 GB 9400250 W GB9400250 W GB 9400250W WO 9418469 A1 WO9418469 A1 WO 9418469A1
Authority
WO
WIPO (PCT)
Prior art keywords
cable
assembly according
assembly
operating member
core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/GB1994/000250
Other languages
English (en)
Inventor
Gavin Bunker
Timothy Bunker
Michael Robinson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SIMPLISTIK DESIGN (UK) Ltd
Bowden Controls Ltd
Original Assignee
SIMPLISTIK DESIGN (UK) Ltd
Bowden Controls Ltd
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 SIMPLISTIK DESIGN (UK) Ltd, Bowden Controls Ltd filed Critical SIMPLISTIK DESIGN (UK) Ltd
Priority to EP94906275A priority Critical patent/EP0683868A1/fr
Priority to JP6517811A priority patent/JPH08506406A/ja
Publication of WO1994018469A1 publication Critical patent/WO1994018469A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/75—Features relating to adjustment, e.g. slack adjusters
    • F16D13/752—Features relating to adjustment, e.g. slack adjusters the adjusting device being located in the actuating mechanism arranged outside the clutch
    • 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
    • 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
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/43—Clutches, e.g. disengaging bearing

Definitions

  • This invention relates to control cables of the kind comprising an inner core cable and an outer conduit. Such cables are sometimes called Bowden-type cables .
  • Cable operated controls are utilised in a number of control systems within the automotive and other industries.
  • a clutch mechanism in a vehicle with manual transmission is often connected by means of a Bowden-type control cable to the clutch pedal mounted on the bulkhead separating the engine compartment from the passenger compartment of the vehicle .
  • the earlier self-adjusting control cables had a self-adjusting device in the form of an automatically releasing clamp of the ratchet and pawl type. This mechanism allowed the core and/or the conduit to move 10 relative to an anchorage point under the influence on the cable of a tensioning spring allowing the cable to adjust itself when in its rest position.
  • a self-adjusting device may be provided as part of the control 15 cable itself.
  • These devices may take the form of an automatically releasing clamp of either the wedged ball type or the wedged jaw type: see, for example, US 4378713, WO 85/03113, WO 86/05849 and EP 0443935.
  • a clamp which is mechanically linked to
  • the present invention sets out to improve on the known systems.
  • control cable assemblies comprising a cable having an inner core cable received within an outer conduit, an operating member movable between a first, rest position and a second pos.it.ion, coupling means acting between the
  • the coupling means coupling the operating member to the core cable for movement thereof relative to the outer conduit upon movement of the operating member between its first and second positions and uncoupling the J3 operating member from the core cable in the first position, and self-adjustment means acting on the core cable in the first position of the operating member to determine the position of the core cable relative to the rest position of the operating member in order to maintain a correctly adjusted condition of the cable assembly.
  • Such assemblies are referred to herein as being "of the type described" .
  • the first and second positions of the operating member correspond respectively to the engaged and disengaged conditions of the clutch
  • the adjustment of the core cable takes place in the rest position of the operating member and, when used to operate a vehicle clutch, between each engagement and disengagement of the clutch.
  • the assemblies require no means for holding the core cable in the second position.
  • the assemblies are maintained in that position by the operator maintaining the disengaged condition of the clutch.
  • the coupling means of an assembly of the type described comprises an elongate element, for example a rod, attached to the core cable, and an element having an aperture through which the elongate element extends, the apertured element being movable between a tilted coupling position, in which it engages the elongate element, and an uncoupling, perpendicular or more nearly perpendicular position, in which the elongate element is free to move relative to the apertured element, the coupling and uncoupling positions of the apertured element corresponding respectively to the second and the first positions of the operating member .
  • the operating member usually a pedal, may act directly on the apertured element. This need not be the case however and the invention can provide a ' mechanism in which the apertured element is acted upon remotely by the operating member, for example through a further cable.
  • An adjusting device can thereby be provided which is located "in-line" in a control cable comprising first and second cable runs.
  • the invention therefore also provides a control cable assembly comprising first and second cable runs
  • the coupling means comprising an elongate element attached to the first core cable and an element having an aperture through which the elongate element extends, the apertured element being movable between a tilted coupling position, in which it engages the elongate element, and an uncoupling, perpendicular or more nearly perpendicular position, in which the elongate element is free to move relative to the apertured element, the coupling and uncoupling positions of the apertured element corresponding respectively to the second and the first positions of the second core cable
  • the axes of the first and second runs are offset in the mechanism, the axis of . one run extending through the aperture of the apertured element and the axis of the other conveniently being parallel to axis of the first run and intersecting the 5 apertured element at a location to supply the tilting force to the apertured element.
  • conduit of at least one cable run, preferably the second cable run, in a body of the assembly is adjustable. This can be achieved by having a peripheral groove in the outer surface of the conduit and a series of corresponding grooves in the assembly
  • a locking member being locatable in the groove in the conduit and a selected one of the series of grooves to adjust the cable position.
  • the groove may alternatively be in the body and the series >of grooves in the conduit.
  • the operating member when the operating member acts directly on the apertured element, it acts with a camming action, in which there is preferably rolling contact between the two parts, for example through a captive roller mounted on the pedal.
  • a camming action in which there is preferably rolling contact between the two parts, for example through a captive roller mounted on the pedal.
  • An arrangement of this kind has the advantage of providing a particularly direct action of the operating, member on the apertured element.
  • coupling means and the self-adjustment means can be conveniently contained in a housing or bracket which also acts as an anchorage for one end of the outer conduit.
  • the apertured element is preferably biased 5 towards its first position by resilient biasing means, conveniently a helical compression spring extending around the elongate element .
  • the apertured element is conveniently in the form of a plate forming a driveplate for the elongate element.
  • the driveplate may be compound with two or more plates in face-to-face contact.
  • the self-adjustment means may comprise a resilient biasing means which acts on the core cable, either directly or indirectly, for example by acting on the elongate element when one is provided.
  • the biasing force of the resilient biasing means is selected so as to be sufficient to bring the core cable into a position relative to the operating member which corresponds to the correctly adjusted condition of the assembly, whilst not being sufficient to bring about any operational movement of the core cable, such as movement bringing about partial disengagement of the clutch of a vehicle in which the assembly is installed.
  • the biasing means for the apertured element and the biasing means of the self -adjustment means are combined in a single biasing means which acts to bias the apertured element into abutment with a fixed part of the assembly in the uncoupling position of the apertured element.
  • the combined biasing means may be a helical compression spring which extends around the elongate element and acts between the apertured element and an end stop on the elongate element .
  • the self - ad j us tment biasing means conveniently comprises a helical compression spring which extends around the elongate element and acts between an end stop thereon and an abutment on a fixed part of the assembly.
  • the biasing means acts between the end of the elongate element adjacent the core cable and an abutment on a fixed part of the assembly.
  • Such a biasing means can comprise a helical compression spring extending around an end portion of the core cable adjacent the elongate element and acting between the end of the elongate element and an abutment on a fixed part of the assembly.
  • the self-adjustment means of an assembly of the type described comprises a restraining means which acts to reduce or prevent free movement of the core cable in the first position of the operating member after the operating member has returned to its first position at the completion of an operating cycle of the cable assembly.
  • the restraining means thereby keeps the control cable in a correctly adjusted condition and eliminates any slack which would otherwise develop in the control assembly during use.
  • the restraining means may comprise frictional means acting on the core cable or a part movable therewith, for example the elongate element mentioned above in the context of the first aspect of the invention.
  • the frictional restraining force is selected or adjusted so that, in use of the assembly, it is overcome by any force restoring the operating member to its first position (for example the re- engagement force of a vehicle clutch, provided by its own diaphr.agm or other spring) but is sufficient to prevent free movement of the core cable in the rest position of the operating member.
  • the frictional means advantageously comprises an interference bearing in which the core cable, or part movable therewith, is a sliding fit. This produces a stepless adjustment.
  • the interference fit can be enhanced by resilient biasing means, a preferred form of which is one or more leaf or bow springs acting between the two parts. In other embodiments, serrations or ramped surfaces can be provided. It is however preferred that relative movement between the restraining means and a fixed part of the assembly should take place during each operating cycle of the control assembly.
  • the restraining means may comprise first and second abutments on a fixed part of the assembly and a stop member which is movable relative to the core cable, for example by being slidably mounted on an elongate element of the kind mentioned above when one is present, the stop member engaging the first abutment in the first position of the operating member, in order to define its rest position, and the second abutment during an end portion of the movement of the operating member to its second position.
  • the movement of the stop member between the first and second abutments is thus less than the movement of the core cable between the first and second positions of the operating member.
  • the stop member takes the form of an interference bearing as mentioned above .
  • Provision for limited movement between the first and second abutments reduces the possibility of the stop member sticking on the elongate element during operation of the assembly.
  • the movement of the stop member is preferably less than the stroke of the operating member between its first and second positions, thereby providing for self-adjustment of the assembly.
  • the present invention can then provide a particularly effective and simple self-adjustment means which is particularly suited to vehicle clutch applications of the control cable assemblies..
  • One or both abutments are conveniently annular and the elongate element extends through them.
  • the annular abutment (s) can provide support for the elongate element or there may otherwise be a clearance between the abutment (s) and the elongate element.
  • At least one abutment may be provided by a captive washer through which the elongate element extends.
  • a control cable assembly comprising a cable having an inner core cable received within an outer conduit, an operating member movable between a first rest position and a second position, and electrical sensing means for signalling the position of the operating member in its operational cycle between its first and second positions.
  • the electrical sensing means includes electrical contact means between which an electrical circuit can be completed by an element movable in response to movement of the core cable, at least during part of the operational cycle.
  • the movable contact element is conveniently provided on an elongate element as mentioned above, when one is present.
  • the control cable assembly is preferably one according to the second aspect of the invention and the contact element is conveniently provided by a stop member as mentioned above, when allowed movement with the core cable.
  • a stop member which comprises conducting material where it contacts the contacts. An electrical circuit between the contacts is thus completed.
  • the stop member may simply complete a circuit or circuits between stationary contacts, or can itself form part of a circuit which may also include the elongate element on which the stop member is mounted. Further contacts can be provided for completion of one or rore further circuits at other positions of the stop member.
  • this arrangement can be used to provide various signalling possibilities: a signal produced during an initial stage of clutch disengagement can signal to a vehicle engine management system that fuel supply should be cut off until the re-engagement takes place; a signal produced later in disengagement of the clutch can be used to signal that the clutch is disengaged and that starting of the vehicle engine is no longer to be inhibited.
  • a signal produced during an initial stage of clutch disengagement can signal to a vehicle engine management system that fuel supply should be cut off until the re-engagement takes place
  • a signal produced later in disengagement of the clutch can be used to signal that the clutch is disengaged and that starting of the vehicle engine is no longer to be inhibited.
  • the invention can provide an effective and simple combined self -adjustment and signalling means.
  • the control cable assemblies according to the invention preferably include an abutment means defining the rest position of the operating member. This has the advantage of eliminating the need for adjustment of the operating member rest position during vehicle assembly.
  • the coupling means comprises an apertured element referred to above
  • the abutment means assists in ensuring that the apertured element is in its uncoupling position in the rest position of the operating member. The apertured element is thus returned to its uncoupling (perpendicular or nearly so) position and the assembly is thus "open centred".
  • the control cable assemblies of the invention may include a housing of plastics material which can be fitted, for example, to a motor vehicle by, for example, being a snap- fit in an aperture in a bulkhead or other part of the vehicle. Other ways of fitting include insertion into a keyhole aperture or securement by a bolt holding the housing to the vehicle bulkhead or other part.
  • the housing provides a convenient means for supporting any electrical contacts as mentioned above and/or for providing support and guidance for the elongate element when one is present.
  • the various abutments mentioned above may also be provided on the housing.
  • Figure 1 is part-sectional somewhat schematic view of self-adjusting operating mechanism for a motor vehicle clutch
  • Figure 2 is a view corresponding to part of Figure 1 of a first modified operating mechanism, at rest,
  • Figure 3 shows the operating mechanism of Figure 2 during operation
  • FIG. 4 shows the operating mechanism of Figure 2 at rest after some wear in the clutch system has taken place
  • Figure 5 corresponds to Figure 2 and shows a second modified adjusting mechanism
  • Figure 5a is a section on the line V - V of Figure 5
  • Figure 6 shows part of the adjusting mechanism of Figure 2 incorporating a third modification
  • Figure ⁇ a shows a part of the adjusting mechanism of Figure 6 removed from the mechanism
  • Figure 7 corresponds to Figure 6 but shows a fourth modification
  • Figure 8 is a view corresponding to part of Figure 1 and shows a fifth modification
  • Figure 9 corresponds to Figure 8 and shows a sixth modification
  • Figure 10 corresponds to Figure 2 and shows a seventh modification
  • Figure 11 corresponds to Figure 2 and shows a eighth modification
  • Figure 12 shows somewhat schematically an in-line cable adjusting mechanism
  • Figure 13 corresponds to Figure 12 but shows a modified in-line adjusting mechanism
  • Figure 14 shows a detail of Figure 13 , viewed in the direction of the arrows E-E on Figure 14.
  • a Bowden-type cable comprising a core cable 1 and a flexible conduit 2.
  • the core cable 1 which is of a fixed length, extends between a clutch actuating lever 3, to which it is secured by a terminal nipple 3a, and an application rod 5 of the operating mechanism.
  • the rod 5 is of circular section and has a smooth surface finish. -Any other section could however be,used. The surface could be roughened.
  • the rod 5 is slidable in a mounting bracket 6 which passes through an opening in a bulkhead 7 of the vehicle engine compartment.
  • the mounting bracket 6 can be a plastics moulding and can be conveniently fitted to the bulkhead 7 by being received in a keyhole slot in the bulkhead. In other embodiments, the bracket can be snap-fit or can be bolted in place.
  • a clutch operating pedal 4 of the vehicle is mounted on the bulkhead 7 for pivotal movement about a pivot 11.
  • the flexible conduit 2 of the control cable is anchored at its respective ends to the mounting bracket 6, which is in turn anchored to the bulkhead 7, and a further anchorage 8 constituted by, for example, a bracket on the housing of the vehicle clutch. These anchorages provide fixed mechanical earth points for the conduit 2.
  • the end of the core cable 1 adjacent the clutch pedal 4 is secured within a narrow bore 9 extending into the forward end of the application rod 5.
  • the application rod 5 is supported by and slidable within a tubular portion 10a of the mounting bracket 6 and further supported by a portion 10b of the bracket.
  • An outer end portion 10c of the bracket 6 has a passage lOd, through which the core cable 1 extends and also provides a seating lOe for the adjacent end of the flexible conduit 2.
  • the core cable is attached to the application rod by means such as crimping, soldering and welding.
  • a driveplate 14 has a central aperture 15 which corresponds to the cross-section of the application rod 5 and is therefore circular in this embodiment .
  • the application rod 5 extends through the aperture 15 so that the driveplate 14 is fitted to the application rod between the supporting portion 10b of the bracket 6 and the washer 12.
  • a helical compression spring 16 extends around the rearward portion of the application rod 5 and is seated at its respective ends on the driveplate 14 and the washer 12.
  • a captive roller 4a forming a cam is rotatably mounted at the upper end of the clutch pedal 4 and acts on the driveplate 14.
  • An abutment 6a cn the bracket 6 acts as a stop to define the rest position of the pedal 4.
  • the floor of the vehicle provides a stop at the opposite end of the stroke of the pedal.
  • the clutch operating mechanism shown in Figure 1 operates as follows. To disengage the clutch, the pedal 4 is depressed (arrow A in Figure 1) . This leads to a clockwise movement about the pivot 11 of the upper .part 4 of the clutch pedal (arrow B) , an anti-clockwise pivoting movement of the driveplate 14 and a consequential rearward movement of the application rod 5 (arrow C) . The rearward movement of the application rod 5 results in the core cable 1 being pulled through the flexible conduit 2 and the end of the actuating lever 3 to which the core cable 1 is attached pivoting in a clockwise direction (arrow D) to release the clutch of the vehicle.
  • Re-engagement of the clutch is a re v ersal of the above process.
  • the pedal 4 is released under control of the foot, the diaphragm or other spring in the clutch draws the core cable 1 back through the conduit 2, the driveplate 14 is returned by the spring 16 to its perpendicular position and the application rod 5 is freed from engagement with the driveplate.
  • the spring 16 acting on the washer 12 can move the application rod 5 through the driveplate aperture, and so take up any slack in the core cable 1, or allow movement of t'he application rod 5 in the opposite direction under the influence of the clutch spring if the effective length of the core is to be increased.
  • a correctly adjusted position of the rod 5 relative to the driveplate 14 is thus established.
  • FIG. 2 of the drawings shows a first modification of the clutch actuating mechanism of Figure 1. Parts of the mechanism of Figure 2 corresponding to those of Figure 1 are shown by the same reference numerals increased by "100".
  • the mounting bracket 106 is formed at its rearward end (the right hand end as seen in Figure 2) with a further support portion 110c which has a supporting aperture for the application rod 105 and which also extends rearwardly to form a support for a washer 112 which is captively mounted in the bracket 106 and has an aperture through which the application rod 105 can slide.
  • the application rod 105 passes through an interference bearing 120, through which the rod 105 is slidable but which fits sufficiently tightly on the rod for the bearing to slide with the rod when not restrained from doing so by another part of the mechanism.
  • the light spring 116 of the mechanism acts between the driveplate 114 and an abutment provided by the support portion 110c of the bracket 106 to ensure uncoupling of the driveplate.
  • Figure 2 shows the operation of the first modified clutch actuating mechanism.
  • Figure 2 shows the mechanism at rest with the vehicle clutch engaged.
  • the clutch pedal 104 is depressed (arrow A) to disengage the clutch
  • the captive roller 104a at the upper end of the pedal pivots (arrow B) and bears against the driveplate 114. This moves the driveplate from its perpendicular into its slanted position, against the bias of the spring
  • the interference bearing 120 has retained the application rod 105 in the position in which the slack in the cable or wear in the friction linings has been taken up by the rod adopting a new rest position in which it is displaced towards the right or left (as seen in Figure 4) relative to the position shown in Figure 2, in dependence upon the direction in which self -adjustment is necessary.
  • the interference bearing 120 retains the application rod 105 in its adjusted position in the rest position of the pedal 104, without imposing any pre-load on the clutch mechanism. Since the effect of a pre-load is to tend to cause partial disengagement of the clutch, and therefore unnecessary wear of its lining material, this is an important advantageous feature of the adjusting mechanism of this embodiment.
  • FIG. 5 and 5a of the drawings shows a second modified adjusting mechanism, the parts of which corresponding to the mechanism of Figure 1 are shown by reference numerals increased by "200" .
  • This mechanism corresponds closely to that shown in Figures 2 to 4 with the exception that the interference bearing 220 is located between respective side walls 206 at the rearward end of the bracket 206.
  • the rearward limit position of the interference bearing 220 is defined by a portion 212 of the bracket, the captive washer being omitted.
  • Figures 6 and 6a show a third modification with reference numerals increased by "400".
  • the interference bearing 420 carries a pair of bow springs 420a, 420b which fit around the bearing 420 and produce radially inwardly directed forces on the rearward part of the application rod 405. These forces act to reinforce the interference fit between the bearing 420 and the rod 405. More than two bow springs can be used, if desired.
  • the rest position of the actuating mechanism is therefore defined as before by the interference bearing 420.
  • Figure 7 shows a fourth modification with reference numerals increased by "500" .
  • the engagement between the interference bearing 520 and the application rod 505 is by way of mating serrations 522a, 522b on the bearing and the rod respectively, the serrations being inclined so as to allow stepwise movement of the bearing 520 along the rod 505 from left to right as seen in Figure 7.
  • the rest position of the mechanism is again defined by the bearing 520.
  • FIGs 8 and 9 show further modifications of the mechanism shown in Figure 1 and use reference numerals increased by “600” and “700” respectively.
  • a first spring 616 acts between a portion 610b of the mounting bracket 606 and the washer 612; a second spring 620 acts between the driveplate 614 and the bracket portion 610b.
  • the spring 616 defines the rest position of the application rod 605 to compensate for clutch wear and cable stretch; the spring 620 biases the driveplate 614 towards its perpendicular position.
  • a first spring 716 acts between the support portion 710d of the mounting bracket 706 and the forward end of the application rod 705.
  • a second spring 724 acts between the driveplate 714 and a portion 710b of the bracket 706.
  • the first and second springs 716, 724 have the same functions as the first and second springs 616, 620 in Figure 8.
  • the downward movement of the pedal 604, 704 can be limited by the vehicle floor or by the bracket portions 610b, 710b limiting rearward movement of the driveplates
  • brackets 606, 706 of the mechanisms shown in Figures 8 and 9 are secured in the respective vehicles by bolts 630, 730 which pass through bulkhead portions 607', 707' lying above the brackets 606, 706.
  • the brackets are further located by engagement of circular bosses 632, 732 in respective apertures in the bulkhead portions 607', 707'.
  • the bosses 632, 732 could be oval .
  • Figure 10 shows schematically a modification of the modified embodiment shown in Figures 5 and 5a, in which the movement of the interference bearing 220 relative to the application rod 205 causes a conducting element 224 on the bearing 220 to complete an electrical circuit between fixed contacts 226a, 226b and therefore allows signalling to take place to, for example, an engine management system or a starting-inhibition device.
  • a single contact or three or more contacts are provided to provide for further signalling possibilities.
  • the switch can also be applied to the mechanism shown in Figures 6 and 6a with one or both bow springs 420a, 420b completing the electrical circuit .
  • Figure 11 shows a modification of the mechanism of that shown in Figures 2 to 4 , in which the upper end of the clutch pedal is attached to the driveplate 114 through a pivotal linkage 130 formed by a pin 132 on the driveplate sliding in a slot 134.
  • the driveplates shown, in the embodiments described above can be replaced by compound driveplates comprising first and second apertured plates in face-to-face contact. This distributes the drive load and produces enhanced engagement. This is shown for the embodiment of Figure 10, which has a double driveplate consisting of plates 214a, 214b.
  • Figure 12 shows an adjusting mechanism which can be located "in-line” with respective cable runs extending to the clutch mechanism and the clutch pedal . Parts corresponding to those shown in Figure 1 are represented by reference numerals increased by "800" .
  • the mechanism has a body 806 which is moulded from plastics material in two half -bodies.
  • a first cable comprising a core cable 801 and a flexible ⁇ conduit 802 extends from a clutch mechanism and terminates with a rod 805 secured to the core cable 801.
  • the rod 805 is received in an apertured driveplate 814 on which a helical compression spring 816 acts.
  • the driveplate 814 is also attached to a second cable which extends to the clutch pedal .
  • the core 830 of the further cable is attached to the driveplate 814.
  • the conduit 832 is received in the body 806.
  • the abutment 812 is fixed to the body 806 and functions as the support portion 110c in the embodiment of Figure 2.
  • the mechanism shown in Figure 12 operates exactly as the mechanism of Figure 1 except that the driveplate 814 is moved to its tilted position by movement to the right (as shown in Figure 12) of the core 830 of the second cable.
  • the spring 812 acts as an auto-adjuster for the first cable and returns the drive-plate 814 to its "open-centre" perpendicular position .
  • Figures 13 and 14 show a modification of the mechanism of Figure 12. Corresponding parts are indicated by reference numerals which are increased by "900" compared with Figure 1.
  • the mechanism of Figures 13 and 14 allows for adjustment of the conduit 932 of the second cable in the body 906. This is achieved by a series of annular grooves 934 which extend around the conduit 932 and can receive a clip 938 which is located in a selected one of the grooves 934 and in a groove 936 in the outer surface of the conduit 932. In this way the position of the second cable in the body 906 can be adjusted to suit the mechanism to different vehicles.
  • a cable assembly including the mechanism can thereby be "universal" in application.
  • a further resilient biasing means in the form of a helical compression spring 940 acts on the driveplate 914 as a light pretensioning spring.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Mechanical Operated Clutches (AREA)
  • Flexible Shafts (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)

Abstract

Mécanisme de réglage pour câble de commande d'embrayage (1, 2) comprenant une tige (5) passant à travers une plaque ajourée inclinable (14) et commandée par une pédale d'embrayage (4) possédant un galet captif (4a) venant en contact avec la plaque (14). Lorsque l'on appuie sur la pédale, la plaque (14) en s'inclinant vient au contact de la tige (5) et tire l'âme du câble (1), ce qui provoque le débrayage. Un ressort de compression hélicoïdal (16) agit contre la plaque (14) et une rondelle (12) afin de régler la position de repos de la tige et de maintenir ainsi l'ensemble de manière correctement ajusté. La position de repos de la tige peut être définie par une butée coulissante (figures 2 à 5) pouvant commander des contacts électriques (figure 10). On peut utiliser deux ressorts pour régler et solliciter la plaque ajourée (figures 8 et 9). Le système de réglage peut être en ligne (figures 12 à 14).
PCT/GB1994/000250 1993-02-09 1994-02-09 Cables de commande Ceased WO1994018469A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP94906275A EP0683868A1 (fr) 1993-02-09 1994-02-09 Cables de commande
JP6517811A JPH08506406A (ja) 1993-02-09 1994-02-09 制御ケーブル

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9302536A GB9302536D0 (en) 1993-02-09 1993-02-09 Control cables
GB9302536.9 1993-02-09

Publications (1)

Publication Number Publication Date
WO1994018469A1 true WO1994018469A1 (fr) 1994-08-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1994/000250 Ceased WO1994018469A1 (fr) 1993-02-09 1994-02-09 Cables de commande

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EP (1) EP0683868A1 (fr)
JP (1) JPH08506406A (fr)
GB (1) GB9302536D0 (fr)
WO (1) WO1994018469A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2776088A1 (fr) 1998-03-16 1999-09-17 Acco La Teledynamique Dispositif d'actionnement de cable, organe de commande pour cable et vehicule automobile muni de ceux-ci
US6389926B1 (en) * 2000-09-27 2002-05-21 Teleflex Incorporated Adjustable pedal-integrated cable transfer
WO2005028900A1 (fr) * 2003-09-24 2005-03-31 Aktiebolaget Skf Unite d'actionnement a dispositif integre servant a compenser l'usure sur l'embrayage
CN101863226A (zh) * 2010-06-11 2010-10-20 重庆长安汽车股份有限公司 一种汽车离合拉索在汽车前壁板上的装配组件

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE664398A (fr) * 1964-05-28 1965-09-16
DE2160278A1 (de) * 1971-12-04 1973-06-07 Volkswagenwerk Ag Vorrichtung fuer eine insbesondere fuer kraftfahrzeuge bestimmte kupplung
US4378713A (en) * 1980-06-10 1983-04-05 Acco Industries Inc. Self-adjusting cable control device
GB2187528A (en) * 1986-03-07 1987-09-09 Nippon Cable System Inc Automatic tension regulating device for remote control wire
EP0389273A1 (fr) * 1989-03-22 1990-09-26 Babcock Industries Inc. Dispositif de commande par câble

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE664398A (fr) * 1964-05-28 1965-09-16
DE2160278A1 (de) * 1971-12-04 1973-06-07 Volkswagenwerk Ag Vorrichtung fuer eine insbesondere fuer kraftfahrzeuge bestimmte kupplung
US4378713A (en) * 1980-06-10 1983-04-05 Acco Industries Inc. Self-adjusting cable control device
GB2187528A (en) * 1986-03-07 1987-09-09 Nippon Cable System Inc Automatic tension regulating device for remote control wire
EP0389273A1 (fr) * 1989-03-22 1990-09-26 Babcock Industries Inc. Dispositif de commande par câble

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2776088A1 (fr) 1998-03-16 1999-09-17 Acco La Teledynamique Dispositif d'actionnement de cable, organe de commande pour cable et vehicule automobile muni de ceux-ci
US6389926B1 (en) * 2000-09-27 2002-05-21 Teleflex Incorporated Adjustable pedal-integrated cable transfer
WO2005028900A1 (fr) * 2003-09-24 2005-03-31 Aktiebolaget Skf Unite d'actionnement a dispositif integre servant a compenser l'usure sur l'embrayage
CN101863226A (zh) * 2010-06-11 2010-10-20 重庆长安汽车股份有限公司 一种汽车离合拉索在汽车前壁板上的装配组件

Also Published As

Publication number Publication date
JPH08506406A (ja) 1996-07-09
EP0683868A1 (fr) 1995-11-29
GB9302536D0 (en) 1993-03-24

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