JPS5649451A - Chain tensioner - Google Patents

Chain tensioner

Info

Publication number
JPS5649451A
JPS5649451A JP12455679A JP12455679A JPS5649451A JP S5649451 A JPS5649451 A JP S5649451A JP 12455679 A JP12455679 A JP 12455679A JP 12455679 A JP12455679 A JP 12455679A JP S5649451 A JPS5649451 A JP S5649451A
Authority
JP
Japan
Prior art keywords
cylinder body
base part
end side
chain
part side
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.)
Pending
Application number
JP12455679A
Other languages
Japanese (ja)
Inventor
Toshiharu Minami
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.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor Co 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 Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP12455679A priority Critical patent/JPS5649451A/en
Publication of JPS5649451A publication Critical patent/JPS5649451A/en
Pending 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
    • F16H7/0848—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
    • F16H2007/0806—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
    • 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
    • F16H2007/0863—Finally actuated members, e.g. constructional details thereof
    • F16H2007/0874—Two or more finally actuated members

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

PURPOSE: To prevent a chain from being broken due to the excessiveness of its tension, by telescopically constituting a press member divided into two members at its end side and base part side.
CONSTITUTION: A chain tensioner 10 is constituted by a cylinder body 11 and a press member 12. At the opening end side of said cylinder body 11 a pawl 15 is axially supported in the state of freely making a turning motion and meshed to a ratchet tooth 16 formed on the press member 12 to block the displacement of the press member 12 toward the side of the cylinder body 11. The press member 12 is divided into two members at its end side and base part side, and across a base part side member 12a and the cylinder body 11 a spring 20 is resiliently press mounted. An end side member 12b is floatably engaged to the peripheral portion in smaller diameter of the base part side member 12a and urged toward the outside of the cylinder body 11 by a spring member 23. Accordingly the looseness of a chain 4 can be absorbed by the protruding motion of the base part side member 12a while the tightness of the chain 4 due to the thermal expansion of an engine can be absorbed by the end side member 12b.
COPYRIGHT: (C)1981,JPO&Japio
JP12455679A 1979-09-27 1979-09-27 Chain tensioner Pending JPS5649451A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12455679A JPS5649451A (en) 1979-09-27 1979-09-27 Chain tensioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12455679A JPS5649451A (en) 1979-09-27 1979-09-27 Chain tensioner

Publications (1)

Publication Number Publication Date
JPS5649451A true JPS5649451A (en) 1981-05-06

Family

ID=14888398

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12455679A Pending JPS5649451A (en) 1979-09-27 1979-09-27 Chain tensioner

Country Status (1)

Country Link
JP (1) JPS5649451A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5073150A (en) * 1989-07-10 1991-12-17 Tsubakimoto Chain Co. Chain tensioner
US7220196B2 (en) * 2001-12-13 2007-05-22 Ina-Schaeffler Kg Chain drive for an internal combustion engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS522008B1 (en) * 1964-07-23 1977-01-19

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS522008B1 (en) * 1964-07-23 1977-01-19

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5073150A (en) * 1989-07-10 1991-12-17 Tsubakimoto Chain Co. Chain tensioner
US7220196B2 (en) * 2001-12-13 2007-05-22 Ina-Schaeffler Kg Chain drive for an internal combustion engine

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