JPS6430938A - Rotary shock absorber - Google Patents

Rotary shock absorber

Info

Publication number
JPS6430938A
JPS6430938A JP18345387A JP18345387A JPS6430938A JP S6430938 A JPS6430938 A JP S6430938A JP 18345387 A JP18345387 A JP 18345387A JP 18345387 A JP18345387 A JP 18345387A JP S6430938 A JPS6430938 A JP S6430938A
Authority
JP
Japan
Prior art keywords
rotary
casing
piston
gradually
internal
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
JP18345387A
Other languages
Japanese (ja)
Inventor
Teruto Ishii
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.)
Ishii Corp
Original Assignee
Ishii Corp
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 Ishii Corp filed Critical Ishii Corp
Priority to JP18345387A priority Critical patent/JPS6430938A/en
Publication of JPS6430938A publication Critical patent/JPS6430938A/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
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F16F9/145—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only rotary movement of the effective parts

Landscapes

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

Abstract

PURPOSE:To gradually absorb kinetic energy of a rotary object able to be smoothly damped by providing a groove-shaped orifice, in which a sectional area gradually decreases smaller along the peripheral direction, in the internal wall of a casing having a cylindrical fluid chamber. CONSTITUTION:A rotary piston 5 protrudes in a blade shape from a rotor shaft 2, forming an end face 5a able to rotate and slide on an internal peripheral surface 1a of a casing 1. The casing 1 forms its internal fluid chamber 3 into almost semicylindrical shape to be divided into fluid chambers 3a, 3b by the piston 5. A groove-shaped orifice 7 in a casing internal peripheral surface 1a forms a tapered shape in which both vertical and transverse sectional areas gradually decrease smaller along the clockwise direction between root parts of both side walls 6b, 6c of a fan-shaped fixed partition 6. Accordingly, the vertical sectional area of the orifice 7 for a position of the piston 5, turned in the closkwise direction by the rotary external force, gradually decreases smaller, and a rotary angular speed of the piston decreases but gradually because resistance force of fluid is in an almost fixed value with no rapid decrease, and rotary motion of an external equipment is smoothly and ideally damped.
JP18345387A 1987-07-24 1987-07-24 Rotary shock absorber Pending JPS6430938A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18345387A JPS6430938A (en) 1987-07-24 1987-07-24 Rotary shock absorber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18345387A JPS6430938A (en) 1987-07-24 1987-07-24 Rotary shock absorber

Publications (1)

Publication Number Publication Date
JPS6430938A true JPS6430938A (en) 1989-02-01

Family

ID=16136044

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18345387A Pending JPS6430938A (en) 1987-07-24 1987-07-24 Rotary shock absorber

Country Status (1)

Country Link
JP (1) JPS6430938A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003247583A (en) * 2002-02-21 2003-09-05 Nifco Inc Rotary damper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003247583A (en) * 2002-02-21 2003-09-05 Nifco Inc Rotary damper

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