JPS57144326A - Bumper - Google Patents

Bumper

Info

Publication number
JPS57144326A
JPS57144326A JP2970881A JP2970881A JPS57144326A JP S57144326 A JPS57144326 A JP S57144326A JP 2970881 A JP2970881 A JP 2970881A JP 2970881 A JP2970881 A JP 2970881A JP S57144326 A JPS57144326 A JP S57144326A
Authority
JP
Japan
Prior art keywords
chromate
working fluid
piston
cylinder
bumper
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
JP2970881A
Other languages
Japanese (ja)
Inventor
Akitake Yoshimi
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.)
Tokico Ltd
Original Assignee
Tokico 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 Tokico Ltd filed Critical Tokico Ltd
Priority to JP2970881A priority Critical patent/JPS57144326A/en
Publication of JPS57144326A publication Critical patent/JPS57144326A/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
    • F16F9/006—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium characterised by the nature of the damping medium, e.g. biodegradable

Landscapes

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

Abstract

PURPOSE:To obtain economical and high reliable working fluid taking the place of petroleum base working fluid by a method wherein a liquid mixture contg. water and high molecular glycol added with the predetermined concentration of chromate is employed as working fluid in the bumper such as automobile shock absorber or the like. CONSTITUTION:The bumper is made up, for example, of a cylinder 1, the interior of which is divided into a gas chamber 3 and a liquid chamber 4 by a free piston 2 provided within the cylinder 1. A piston 5 equipped with a damping force generating valve 6 is provided within the liquid chamber 4. A piston rod 7 is fixed to said piston 5 at its one end and protruded outside piercing a rod guide 8 arranged at the end of the cylinder 1 and a packing 9 adjoiningly attached inside the rod guide 8. Here, working fluid comprising water, chromate and high molecular liquid glycol is filled whithin said liquid chamber 4. In this case, the chromate is set in the order of 100-5,000ppm and sodium bichromate or the like is used as the chromate.
JP2970881A 1981-03-02 1981-03-02 Bumper Pending JPS57144326A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2970881A JPS57144326A (en) 1981-03-02 1981-03-02 Bumper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2970881A JPS57144326A (en) 1981-03-02 1981-03-02 Bumper

Publications (1)

Publication Number Publication Date
JPS57144326A true JPS57144326A (en) 1982-09-06

Family

ID=12283601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2970881A Pending JPS57144326A (en) 1981-03-02 1981-03-02 Bumper

Country Status (1)

Country Link
JP (1) JPS57144326A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999031404A1 (en) * 1997-12-16 1999-06-24 Colebrand Limited Shock transmission unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999031404A1 (en) * 1997-12-16 1999-06-24 Colebrand Limited Shock transmission unit

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