EP0000802B2 - Metal driving belt - Google Patents

Metal driving belt Download PDF

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Publication number
EP0000802B2
EP0000802B2 EP19780200129 EP78200129A EP0000802B2 EP 0000802 B2 EP0000802 B2 EP 0000802B2 EP 19780200129 EP19780200129 EP 19780200129 EP 78200129 A EP78200129 A EP 78200129A EP 0000802 B2 EP0000802 B2 EP 0000802B2
Authority
EP
European Patent Office
Prior art keywords
driving belt
transverse members
belt
friction
transverse
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.)
Expired
Application number
EP19780200129
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0000802B1 (en
EP0000802A1 (en
Inventor
Emerie Frederik Marie Hendriks
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.)
Bosch Transmission Technology BV
Original Assignee
Van Doornes Transmissie BV
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19828974&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0000802(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Van Doornes Transmissie BV filed Critical Van Doornes Transmissie BV
Publication of EP0000802A1 publication Critical patent/EP0000802A1/en
Application granted granted Critical
Publication of EP0000802B1 publication Critical patent/EP0000802B1/en
Publication of EP0000802B2 publication Critical patent/EP0000802B2/en
Expired legal-status Critical Current

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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
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G5/00—V-belts, i.e. belts of tapered cross-section
    • F16G5/16—V-belts, i.e. belts of tapered cross-section consisting of several parts

Definitions

  • This invention relates to a driving V-belt suitable to transmit a torque between expanding pulleys formed of pairs of conical discs defining a V-shaped space between them for receiving the driving belt,
  • driving belt comprises a carrier in the form of one or a plurality of endless, metal belts having a continuous series of metal transverse members freely slidable with respect to the carrier thereon, and wherein, in the pushing run of the belt, successive transverse members are in contact with each other and relative movement between these transverse members is opposed by friction.
  • Such a driving belt is known from Dutch patent 142 767, in which the operation of the driving belt, which transmits the torque by means of pushing force, is explained.
  • Such a driving belt is particularly suitable for use in an infinitely variable transmission.
  • a drawback of such a driving belt is that under certain working conditions the transverse members may shift in transverse direction to cause heavy wear. During this lateral shifting the transverse members strike the flanks of the belt or belts forming the carrier.
  • either one or both of the adjacent surfaces of each pair of adjacent transverse members is or are provided with friction-increasing means.
  • the friction-increasing means comprise a knurling of small depth, for instance some hundredths of a millimeter.
  • this knurling can be formed by grinding the surface in two non-parallel directions, called cross-grinding.
  • the knurling on the surface is such that it is maintained during use of the driving belt, and consequently does not easily wear out, or disappear during running in of the driving belt.
  • DE-A-2 557 724 which describes a V-belt with transverse members provided throughout their surfaces with means preventing relative transverse shifting. These are, however, interlocking means rather than friction-increasing means.
  • Fig. 1 shows schematically two V-shaped pulleys 1, 2.
  • the running diameter of the driving belt 3 on a pulley 1, 2 can be varied by adjusting the mutual distance of the conical pulley parts of the V-shaped pulley 1, 2.
  • the ratio of the rotary speeds between the schematically shown shafts 4 and 5 can be varied infinitely in this way.
  • the driving belt 3 comprises a number of metal transverse members 6 slidably mounted on an endless carrier 7.
  • This carrier 7 may comprise, for example, a number of metal belts combined into one or more belt packs.
  • Each of the preferably two belt packs comprise a number, for example ten, of superposed metal belts which are slidable about and with respect to each other. (In Fig. 1 a pack of only 4 belts is shown).
  • the transverse members 6 are slightly tapered radially inwardly of the driving belt, which enables the driving belt 6 to run about the pulley with curvature, as shown in Fig. 1.
  • Fig. 2 shows a transverse member 6 (shown in Fig. 1 in side elevational view) in front elevational view.
  • Transverse member 6 comprises two side surfaces 8 adapted to cooperate with the conical pulley parts of the V-shaped pulley 1, 2 and two recesses 9, each adapted to receive a belt pack 7, as shown.
  • the broken line 10 in Fig. 2 indicates the tilting line of the tilting zone, i.e. the place where the transverse member 6 starts tapering.
  • the transverse members are in contact with each other with the surface shown in cross-hatched lines in Fig. 2 above the broken line 10.
  • This hatching indicates the two grinding directions in which the surface has been ground so as to produce such grooves in the surface that with relatively small pressure forces between the transverse members the mutual friction in transverse direction is great.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)
  • Transmissions By Endless Flexible Members (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
EP19780200129 1977-08-04 1978-08-03 Metal driving belt Expired EP0000802B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7708639A NL168307C (nl) 1977-08-04 1977-08-04 Drijfriem.
NL7708639 1977-08-04

Publications (3)

Publication Number Publication Date
EP0000802A1 EP0000802A1 (en) 1979-02-21
EP0000802B1 EP0000802B1 (en) 1981-12-30
EP0000802B2 true EP0000802B2 (en) 1989-07-12

Family

ID=19828974

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19780200129 Expired EP0000802B2 (en) 1977-08-04 1978-08-03 Metal driving belt

Country Status (5)

Country Link
EP (1) EP0000802B2 (es)
JP (1) JPS5452253A (es)
DE (1) DE2861467D1 (es)
ES (1) ES472339A1 (es)
NL (1) NL168307C (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4386921A (en) * 1980-04-28 1983-06-07 Borg-Warner Corporation Metal power transmission belt
JPS6139141Y2 (es) * 1981-06-24 1986-11-11
US4525159A (en) * 1981-11-13 1985-06-25 Valeo Belt and pulley transmission
EP0191449B1 (en) * 1985-02-12 1989-07-26 Tsubakimoto Chain Co. Frictional transmission chain
FR2625783B1 (fr) * 1988-01-11 1990-05-11 Caoutchouc Manuf Plastique Organe de transmission pour variateur continu de vitesse, a maillons transversaux poussants et ame souple, fonctionnant par frottement sec
FR2660389B1 (fr) * 1990-04-02 1992-06-05 Caoutchouc Manuf Plastique Lien souple de transmission de puissance, a ame trapezouidale et maillons poussants enveloppes d'un tissu.
US5242332A (en) * 1990-04-02 1993-09-07 Caoutchouc Manufacture Et Plastiques S.A. Transmission arrangement with a covered transmission belt
US5105889A (en) * 1990-11-29 1992-04-21 Misikov Taimuraz K Method of production of formation fluid and device for effecting thereof
JP3660047B2 (ja) * 1996-03-27 2005-06-15 本田技研工業株式会社 金属ｖベルト式無段変速機
WO2002053937A1 (en) 2000-12-28 2002-07-11 Van Doorne's Transmissie B.V. Belt
WO2002053935A1 (en) 2000-12-28 2002-07-11 Van Doorne's Transmissie B.V. Belt
WO2002053938A1 (en) 2000-12-28 2002-07-11 Van Doorne's Transmissie B.V. Belt
DE60015818T2 (de) 2000-12-28 2005-11-24 Van Doorne's Transmissie B.V. Riemen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR81703E (fr) * 1961-10-31 1963-11-02 G Ab Variateur de vitesses à frictions multiples
FR2031782A5 (es) * 1969-02-07 1970-11-20 Peugeot & Renault
NL155927B (nl) * 1975-10-09 1978-02-15 Doornes Transmissie Bv Metalen drijfriem, alsmede duwelement daarvoor.
DE2557724B2 (de) * 1975-12-20 1978-10-12 Hans Heynau Gmbh, 8000 Muenchen Gliederkeilriemen

Also Published As

Publication number Publication date
DE2861467D1 (en) 1982-02-18
JPS5452253A (en) 1979-04-24
ES472339A1 (es) 1979-03-16
JPS6153567B2 (es) 1986-11-18
NL7708639A (nl) 1979-02-06
EP0000802B1 (en) 1981-12-30
EP0000802A1 (en) 1979-02-21
NL168307C (nl) 1982-03-16

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