WO2009075219A1 - Tendeur de chaîne - Google Patents

Tendeur de chaîne Download PDF

Info

Publication number
WO2009075219A1
WO2009075219A1 PCT/JP2008/072034 JP2008072034W WO2009075219A1 WO 2009075219 A1 WO2009075219 A1 WO 2009075219A1 JP 2008072034 W JP2008072034 W JP 2008072034W WO 2009075219 A1 WO2009075219 A1 WO 2009075219A1
Authority
WO
WIPO (PCT)
Prior art keywords
plunger
flank
cylinder
female thread
chain tensioner
Prior art date
Application number
PCT/JP2008/072034
Other languages
English (en)
Japanese (ja)
Inventor
Seiji Sato
Akiko Shiotani
Yoshiaki Ryouno
Hisashi Hayakawa
Original Assignee
Ntn Corporation
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
Priority claimed from JP2008186108A external-priority patent/JP5316931B2/ja
Application filed by Ntn Corporation filed Critical Ntn Corporation
Publication of WO2009075219A1 publication Critical patent/WO2009075219A1/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
    • 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
    • F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
    • F16H7/0836—Means for varying tension of belts, ropes, or chains with vibration damping means of the fluid and restriction type, e.g. dashpot
    • 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
    • F16H2007/0806—Compression coil 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
    • F16H2007/0802—Actuators for final output members
    • F16H2007/0812—Fluid pressure
    • 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
    • F16H2007/0857—Screw mechanisms
    • 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
    • F16H2007/0859—Check valves

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

L'invention concerne un tendeur de chaîne dans lequel la position d'un piston peut être fixée de manière fiable lorsque le moteur est stoppé. Dans un tendeur de chaîne (1), un piston (10) est inséré de manière coulissante dans un cylindre (9). Le piston (10) présente une forme tubulaire et présente une extrémité d'insertion insérée dans le cylindre (9), et la périphérie interne de l'extrémité d'insertion présente un filetage femelle (16). Une tige filetée (18) présentant sur sa périphérie externe un filetage mâle (17) coopérant avec le filetage femelle (16) est prévue dans le cylindre (9). Le filetage mâle (17) et le filetage femelle (16) présentent une forme en dents de scie dans laquelle l'angle de flanc α d'un flanc de pression (19) est supérieur à l'angle de flanc β d'un flanc de dégagement (20). Un ressort de rappel (21) monté entre le piston (10) et la tige filetée (18) pousse le piston (10), dans la direction dans laquelle le piston (10) fait saillie depuis le cylindre (9), et le piston (10) presse la chaîne (6). Au moins un flanc parmi le flanc de pression (19) du filetage mâle (17) et le flanc de pression (19) du filetage femelle (16) présente une finition mate.
PCT/JP2008/072034 2007-12-10 2008-12-04 Tendeur de chaîne WO2009075219A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007318047 2007-12-10
JP2007-318047 2007-12-10
JP2008186108A JP5316931B2 (ja) 2007-12-10 2008-07-17 チェーンテンショナ
JP2008-186108 2008-07-17

Publications (1)

Publication Number Publication Date
WO2009075219A1 true WO2009075219A1 (fr) 2009-06-18

Family

ID=40755463

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/072034 WO2009075219A1 (fr) 2007-12-10 2008-12-04 Tendeur de chaîne

Country Status (1)

Country Link
WO (1) WO2009075219A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108317228A (zh) * 2017-01-16 2018-07-24 Ntn株式会社 链条张紧器
CN108884914A (zh) * 2016-03-17 2018-11-23 Ntn株式会社 链条张紧器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004245242A (ja) * 2003-02-10 2004-09-02 Ntn Corp チェーンテンショナ
JP2007032603A (ja) * 2005-07-22 2007-02-08 Ntn Corp チェーンテンショナ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004245242A (ja) * 2003-02-10 2004-09-02 Ntn Corp チェーンテンショナ
JP2007032603A (ja) * 2005-07-22 2007-02-08 Ntn Corp チェーンテンショナ

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108884914A (zh) * 2016-03-17 2018-11-23 Ntn株式会社 链条张紧器
EP3431814A4 (fr) * 2016-03-17 2019-01-23 NTN Corporation Tendeur de chaîne
CN108317228A (zh) * 2017-01-16 2018-07-24 Ntn株式会社 链条张紧器
EP3569893A4 (fr) * 2017-01-16 2020-01-08 NTN Corporation Tendeur de chaîne
US11231091B2 (en) 2017-01-16 2022-01-25 Ntn Corporation Chain tensioner
CN108317228B (zh) * 2017-01-16 2022-10-28 Ntn株式会社 链条张紧器

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