CA2368985A1 - Timing belt tensioner with a backstop device with controlled one-way mechanism - Google Patents

Timing belt tensioner with a backstop device with controlled one-way mechanism Download PDF

Info

Publication number
CA2368985A1
CA2368985A1 CA002368985A CA2368985A CA2368985A1 CA 2368985 A1 CA2368985 A1 CA 2368985A1 CA 002368985 A CA002368985 A CA 002368985A CA 2368985 A CA2368985 A CA 2368985A CA 2368985 A1 CA2368985 A1 CA 2368985A1
Authority
CA
Canada
Prior art keywords
tension arm
pivotal movement
controlled
timing belt
belt tensioner
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.)
Granted
Application number
CA002368985A
Other languages
French (fr)
Other versions
CA2368985C (en
Inventor
Jorma J. Lehtovaara
K. Mats Lipowski
Marek Frankowski
Jacek Stepniak
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.)
Litens Automotive Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2368985A1 publication Critical patent/CA2368985A1/en
Application granted granted Critical
Publication of CA2368985C publication Critical patent/CA2368985C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
    • F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
    • F16H7/1254—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
    • F16H7/1281—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially circular path
    • F16H7/129—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially circular path with means for impeding reverse motion
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/0848—Means for varying tension of belts, ropes, or chains with means for impeding reverse motion
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0802—Actuators for final output members
    • F16H2007/081—Torsion springs
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
    • F16H2007/084—Means for varying tension of belts, ropes, or chains with vibration damping means having vibration damping characteristics dependent on the moving direction of the tensioner
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/0848—Means for varying tension of belts, ropes, or chains with means for impeding reverse motion
    • F16H2007/0853—Ratchets
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

A tensioner (10) for an endless belt comprising a stationary structure on which a pivotal tension arm (13) with an idler pulley (11) is mounted. A spring (15) between the tension arm and the stationary structure (16) acts to bias the pulley (11) against the belt, thereby applying tension. The invention includes a one-way device that is operable in response to the extent of pivotal movement of the tension arm (13) in the forward direction to establish different positions at which pivotal movement in the return direction is limited. A damping system (44) is used to restrict pivotal movement of the tension arm (13) as a result of sudden short-time vibratory movements or dynamic vibrations in cold conditions.
CA002368985A 1999-04-12 2000-04-12 Timing belt tensioner with a backstop device with controlled one-way mechanism Expired - Fee Related CA2368985C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12889499P 1999-04-12 1999-04-12
US60/128,894 1999-04-12
PCT/CA2000/000383 WO2000061969A1 (en) 1999-04-12 2000-04-12 Timing belt tensioner with a backstop device with controlled one-way mechanism

Publications (2)

Publication Number Publication Date
CA2368985A1 true CA2368985A1 (en) 2000-10-19
CA2368985C CA2368985C (en) 2007-03-20

Family

ID=22437510

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002368985A Expired - Fee Related CA2368985C (en) 1999-04-12 2000-04-12 Timing belt tensioner with a backstop device with controlled one-way mechanism

Country Status (3)

Country Link
AU (1) AU3799300A (en)
CA (1) CA2368985C (en)
WO (1) WO2000061969A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK1290360T3 (en) * 2000-06-16 2005-07-25 Fabian W Gibson Automatic timing belt tensioner with anti-tooth skipping mechanism
DE20119200U1 (en) 2001-11-27 2003-04-10 Joh. Winklhofer & Söhne GmbH und Co KG, 81369 München Chain tensioner with mechanical locking
CN103398147B (en) * 2013-07-10 2016-02-10 上海交通大学 Idler wheel steel belt pre-tightening apparatus

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4145934A (en) 1977-09-30 1979-03-27 Sragal Richard F Flexible endless drive means tensioning device
US4299584A (en) * 1979-12-28 1981-11-10 Dyneer Corporation Belt tensioner construction
US4351636A (en) 1980-06-06 1982-09-28 Hager Clarence H Belt tensioning device
US4583962A (en) 1984-12-07 1986-04-22 Litens Automotive Inc. Timing belt tensioner with damped constant spring tensioning and belt tooth disegagement prevention
US4634407A (en) 1985-08-12 1987-01-06 Federal-Mogul Corporation Self-tensioning belt tightener
US4923435A (en) 1986-12-27 1990-05-08 Koyo Seiko Co., Ltd. Chain or belt tensioner with a one-way clutch
DE3718227A1 (en) * 1987-06-01 1988-12-15 Werner Kotzab Tensioner for belts and the like, particularly in motor vehicle engines
DE3741860A1 (en) * 1987-12-10 1989-06-22 Schaeffler Waelzlager Kg Tension device for a belt
US4808148A (en) 1988-04-04 1989-02-28 Federal-Mogul Corporation Temperature compensated self-tensioning idler pulley
US4834694A (en) 1988-07-25 1989-05-30 Ina Bearing Co., Inc. Belt tensioning apparatus
US4822322A (en) 1988-07-25 1989-04-18 Ina Bearing Co., Inc. Tensioning device for timing belt or chain in automotive engine applications
JP2918368B2 (en) * 1991-09-17 1999-07-12 大同工業株式会社 Tensioner

Also Published As

Publication number Publication date
AU3799300A (en) 2000-11-14
WO2000061969A1 (en) 2000-10-19
CA2368985C (en) 2007-03-20

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20190412