JPS56138539A - Hydraulic damper - Google Patents

Hydraulic damper

Info

Publication number
JPS56138539A
JPS56138539A JP4147280A JP4147280A JPS56138539A JP S56138539 A JPS56138539 A JP S56138539A JP 4147280 A JP4147280 A JP 4147280A JP 4147280 A JP4147280 A JP 4147280A JP S56138539 A JPS56138539 A JP S56138539A
Authority
JP
Japan
Prior art keywords
piston
cylinder
hydraulic damper
main cylinder
work
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
JP4147280A
Other languages
Japanese (ja)
Inventor
Yoshiro Komatsu
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 JP4147280A priority Critical patent/JPS56138539A/en
Publication of JPS56138539A publication Critical patent/JPS56138539A/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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/48—Arrangements for providing different damping effects at different parts of the stroke

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

PURPOSE:To provide a hydraulic damper, which is capable of increasing the hydraulic damping force according to the stroke of a work piston at the time of compression stroke and also capable of making an effective use of the entire allowable stroke of the work piston. CONSTITUTION:This hydraulic damper comprises a main cylinder 10 and a subsidiary cylinder 20 coupled together by a connecting hoes 15, and a work piston 30 is fitted in the main cylinder 10 in a freely slidable manner. The work piston 30 includes a coupling member 34 for conncting the piston body 31 to the top of a piston rod 60, and a damping force controlling mechanism 39 is provided in the coupling member 34. Further, in the main cylinder 10, a fixed valve 50 is disposed between a cylinder case 11 and an end case 13. Here, the fixed valve 50 includes a hollow rod 55 extending through the inside of the piston rod 60, and a needle 65 fixed to the piston rod 60 is inserted into the hollow rod 55 for forming a variable orifice between them.
JP4147280A 1980-03-31 1980-03-31 Hydraulic damper Pending JPS56138539A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4147280A JPS56138539A (en) 1980-03-31 1980-03-31 Hydraulic damper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4147280A JPS56138539A (en) 1980-03-31 1980-03-31 Hydraulic damper

Publications (1)

Publication Number Publication Date
JPS56138539A true JPS56138539A (en) 1981-10-29

Family

ID=12609297

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4147280A Pending JPS56138539A (en) 1980-03-31 1980-03-31 Hydraulic damper

Country Status (1)

Country Link
JP (1) JPS56138539A (en)

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