WO1993007397A1 - Dispositif de reglage de cable d'embrayage - Google Patents

Dispositif de reglage de cable d'embrayage Download PDF

Info

Publication number
WO1993007397A1
WO1993007397A1 PCT/GB1992/001682 GB9201682W WO9307397A1 WO 1993007397 A1 WO1993007397 A1 WO 1993007397A1 GB 9201682 W GB9201682 W GB 9201682W WO 9307397 A1 WO9307397 A1 WO 9307397A1
Authority
WO
WIPO (PCT)
Prior art keywords
guide
stop
cable
assembly according
clutch
Prior art date
Application number
PCT/GB1992/001682
Other languages
English (en)
Inventor
Richard Curren
Original Assignee
Rover Group Limited
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 Rover Group Limited filed Critical Rover Group Limited
Priority to GB9407102A priority Critical patent/GB2275317B/en
Publication of WO1993007397A1 publication Critical patent/WO1993007397A1/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
    • 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"
    • F16C1/101—Intermediate connectors for joining portions of split flexible shafts and/or sheathings
    • 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
    • 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

  • the Present invention relates to a clutch cable adjuster.
  • clutch cables were adjusted by a simple screw threaded mechanism which altered the position of one end of the clutch cable sleeve relative to, for example, the bulkhead to which it was attached. Initial setting up of the cable and subsequent adjustment had to be carried out by a skilled mechanic and was therefore expensive.
  • the present invention aims to provide a clutch adjuster which is relatively cheap and simple to produce and which does not require skilled servicing.
  • the present invention provides an adjustable cable actuation system for a clutch, the system comprising clutch release means movable between an engaged position and a disengaged position and biased towards the engaged position, actuating means connected to the clutch release means by a cable and movable between an engaged position and a disengaged position, a conduit surrounding the cable and including first and second guide means movable axially in first and second directions relative to one another respectively to increase and decrease the effective length of the conduit, stop means movable between a plurality of positions for limiting relative movement of the guide members in the second direction when the actuation means is moved towards the disengaged position, and biasing means for urguing the guide means in the first direction relative to one another thereby applying a pre-load to the clutch release means when the actuating means is in the engaged position.
  • the stop means allows at least some relative movement of the two guide means in either direction.
  • Figure 1 is a schematic view of a clutch cable and adjuster assembly according to a first embodiment of the invention
  • Figure 2 is part-sectional view of the adjuster of Figure
  • Figure 3 is a view, similar to Figure 2, of a second embodiment of the invention.
  • Figure 4 is an enlargement of part of Figure 3.
  • the first embodiment of the invention comprises a flexible conduit 10 having its ends fixedly mounted, one on a vehicle bulkhead 12 and the other on a support bracket 14.
  • a cable 16 extends through the conduit 10 and has one end attached to actuation means in the form of a clutch pedal 18 and the other end attached to a clutch release lever 20 which operates a push type clutch 22 which includes a diaphragm spring 23 and release bearing 25.
  • the conduit 10 comprises first and second flexible sleeve portions 24, 26 joined respectively to first guide means comprising a guide member in the form of an outer rigid tubular member 28, and second guide means comprising a guide member in the form of an inner rigid tubular member 30 and a collar 29.
  • the collar is crimped onto the second sleeve portion 26 in a position spaced from the inner tubular member.
  • the inner tubular member 28 is slidably received inside the outer tubular member 30 such that relative movement of the two tubular members alters the length of the conduit 10.
  • the outer tubular member 28 comprises a tubular main body portion 32 with a tubular connector 34 at one end for connecting to the first sleeve portion 24 and a tubular spring support 36 at the other end.
  • the main body portion 32 is thicker than the spring support 36 and the step between the two forms a first spring abutment 38.
  • the inner tubular member 30 has a first bore 40 in one end which supports the end of the second sleeve portion 26 and a second bore 42, extending from the other end and meeting the first bore.
  • a series of circumferential grooves 44 are formed on a part of the outer surface 46 of the inner tubular member, in the region of the second bore 42, which can be slid inside the outer tubular member.
  • a circlip 48 is mounted on the collar 29 and a helical spring 50 is situated around the inner tubular member having one end abutting against the circlip 48 and the other end against the spring abutment 38 on the outer tubular member 28.
  • the spring 50 is under compression and
  • a circlip 52 is mounted in one of the grooves 44 and forms a stop for the end of the spring support 36, preventing the two tubular members 28, 30 from moving together beyond a set point, and thereby locating the guide members relative to one another.
  • the clutch 22 In use, when the clutch cable is first installed, the clutch 22 is engaged, and the clutch pedal 18 is not depressed and is at the end of its travel in the engaged position.
  • the cable 16 is held under tension by the effect of the helical spring tending to increase the length of the conduit 10 until all slack in the cable is taken up.
  • the tension in the cable 16 provides a pre-load on the diaphragm spring 23.
  • the circlip 52 is then inserted in the first slot 44 beyond the end of the spring support 36. This limits movement together of the tubular members 28, 30 when the clutch pedal is depressed pulling on the cable 16 to disengage the clutch.
  • the tubular members can only move together until the spring support 36 abuts the circlip 52, this movement appearing as lost travel of the clutch pedal 18. Further movement of the clutch pedal 18 moves the clutch release lever 20 to release the clutch. As the clutch wears the diaphragm spring can move further away from its released position when the clutch is engaged. Initial wear is taken up by the tubular members moving together so that the spring support 36 on the outer tubular member 28 approaches the circlip 52.
  • the circlip 52 is removed.
  • the tension in the cable 16 causes the tubular members 28, 30 to move together until the helical spring 50 again reaches equilibrium.
  • the second embodiment of the invention is similar to the first embodiment having an outer tubular member 128 and an inner tubular member 130 urged apart by a helical spring 150.
  • the inner tubular member 130 has circumferential grooves 144 in its outer surface.
  • the second embodiment differs from the first in that the outer tubular member has a slot 160 in its main body portion 132 exposing a part of the grooved outer surface of the inner tubular member 130.
  • the slot 160 is of such width that only one of the grooves 144 is exposed over its whole width as can be seen in Figure 4.
  • a circlip 152 is fitted into the one exposed groove through the slot 160.

Landscapes

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

Abstract

Un dispositif de réglage de câble d'embrayage comprend des éléments tubulaires externes et internes (28, 30), chacun fixé à une partie du manchon du câble (24, 26), s'adaptant à l'intérieur l'un de l'autre en coulissant, et un ressort (50) agissant sur des butées (38, 48) pousse les éléments tubulaires en les écartant l'un de l'autre. Un circlip (52) placé sur une des nombreuses cannelures (44) dans l'élément tubulaire interne empêche les éléments tubulaires de se déplacer en même temps au-delà d'un point de réglage. Lorsqu'on enlève le circlip (52), les éléments tubulaires prennent une position relative définitive sous l'influence du ressort (50) et le circlip peut être replacé dans une cannelure appropriée (44).
PCT/GB1992/001682 1991-10-09 1992-09-14 Dispositif de reglage de cable d'embrayage WO1993007397A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9407102A GB2275317B (en) 1991-10-09 1992-09-14 A clutch cable adjuster

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9121329A GB2260588A (en) 1991-10-09 1991-10-09 A clutch cable adjuster
GB9121329.8 1991-10-09

Publications (1)

Publication Number Publication Date
WO1993007397A1 true WO1993007397A1 (fr) 1993-04-15

Family

ID=10702586

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1992/001682 WO1993007397A1 (fr) 1991-10-09 1992-09-14 Dispositif de reglage de cable d'embrayage

Country Status (2)

Country Link
GB (2) GB2260588A (fr)
WO (1) WO1993007397A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5809840A (en) * 1995-02-14 1998-09-22 Shimano, Inc. Protective cap system for bicycle cable

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9308040U1 (de) * 1993-06-01 1994-10-13 AL-KO Kober AG, 89359 Kötz Bowdenzug mit Spannvorrichtung
DE19700746C1 (de) * 1997-01-11 1998-08-13 Brose Fahrzeugteile Vorrichtung zum automatischen, stufenweisen Seillängenausgleich eines Bowdenzugsystems
US5983745A (en) * 1997-04-28 1999-11-16 Petrak; Gregory H. Park brake cable system including connector clip and associated method of tensioning
US7331254B2 (en) 2001-09-21 2008-02-19 Petrak Gregory H Method and apparatus for tensioning an emergency brake system on a vehicle
US7331255B2 (en) 2001-09-21 2008-02-19 Petrak Gregory H Method and apparatus for tensioning an emergency brake system on a vehicle
DE10334224A1 (de) * 2003-07-26 2005-02-17 Kiekert Ag Bowdenzugaggregat
WO2009018471A1 (fr) 2007-07-31 2009-02-05 Petrak Gregory H Système et procédé pour mettre en tension un système de frein à main
WO2013163458A2 (fr) 2012-04-25 2013-10-31 Innovative System Solutions, Inc Appareil, système et procédé de traction d'un système de de frein à main
GB201408442D0 (en) * 2014-05-13 2014-06-25 Wozniak Maximilian V Cable coupling system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2014129A1 (de) * 1969-06-12 1971-01-07 Teleflex Ine , North Wales, Pa (V St A) Bowdenzug
US4177691A (en) * 1978-03-06 1979-12-11 Teleflex Incorporated Motion transmitting remote control assembly
US4658668A (en) * 1984-09-10 1987-04-21 Ford Motor Company Transmission kickdown cable adjuster
EP0365242A1 (fr) * 1988-10-17 1990-04-25 Babcock Industries Inc. Dispositif manuel et verrouillable de réglage de longueur

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344518A (en) * 1980-09-22 1982-08-17 Acco Industries Inc. Self-adjusting cable conduit mechanism
AU573536B2 (en) * 1982-09-14 1988-06-16 Hoyle, E. Self-adjusting clutch mechanism
JPH0130655Y2 (fr) * 1985-06-19 1989-09-20
GB8827383D0 (en) * 1988-11-23 1988-12-29 Motaproducts Automotive Ltd Cable adjuster

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2014129A1 (de) * 1969-06-12 1971-01-07 Teleflex Ine , North Wales, Pa (V St A) Bowdenzug
US4177691A (en) * 1978-03-06 1979-12-11 Teleflex Incorporated Motion transmitting remote control assembly
US4658668A (en) * 1984-09-10 1987-04-21 Ford Motor Company Transmission kickdown cable adjuster
EP0365242A1 (fr) * 1988-10-17 1990-04-25 Babcock Industries Inc. Dispositif manuel et verrouillable de réglage de longueur

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5809840A (en) * 1995-02-14 1998-09-22 Shimano, Inc. Protective cap system for bicycle cable
US6014910A (en) * 1995-02-14 2000-01-18 Shimano, Inc. Protective cap-system for bicycle cable

Also Published As

Publication number Publication date
GB9407102D0 (en) 1994-06-22
GB2275317B (en) 1994-11-30
GB2275317A (en) 1994-08-24
GB2260588A (en) 1993-04-21
GB9121329D0 (en) 1991-11-20

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