JPS57110839A - Abrasion warning device for leaf spring for car - Google Patents

Abrasion warning device for leaf spring for car

Info

Publication number
JPS57110839A
JPS57110839A JP18696380A JP18696380A JPS57110839A JP S57110839 A JPS57110839 A JP S57110839A JP 18696380 A JP18696380 A JP 18696380A JP 18696380 A JP18696380 A JP 18696380A JP S57110839 A JPS57110839 A JP S57110839A
Authority
JP
Japan
Prior art keywords
leaf spring
fiber
silencer
superficial portion
abrasion
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.)
Granted
Application number
JP18696380A
Other languages
Japanese (ja)
Other versions
JPS6140851B2 (en
Inventor
Yoshinori Oka
Junichi Hori
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.)
Hino Motors Ltd
Original Assignee
Hino Motors Ltd
Hino Jidosha Kogyo KK
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 Hino Motors Ltd, Hino Jidosha Kogyo KK filed Critical Hino Motors Ltd
Priority to JP18696380A priority Critical patent/JPS57110839A/en
Publication of JPS57110839A publication Critical patent/JPS57110839A/en
Publication of JPS6140851B2 publication Critical patent/JPS6140851B2/ja
Granted 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
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/366—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers made of fibre-reinforced plastics, i.e. characterised by their special construction from such materials
    • F16F1/368—Leaf springs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)

Abstract

PURPOSE:To rationalize the exchange of a leaf spring made of FRP and having interposed members such as silencer, by laying a conductive reinforced fiber in the abrasion limiting position of the superficial portion of each leaf spring made of a nonconductive material. CONSTITUTION:The superficial portion La of each piled up leaf spring L is made of a nonconductive material such as glass fiber G, and conductive reinforced fiber such as carbon fiber C is laid in the abrasion limiting position of the superficial portion La. Furthermore, an interposed member such as silencer 3 is connected electrically with the fiber C burried in the leaf spring 1, and the interposed member and the fiber C in the leaf spring, touching slidingly to the interposed member, constitute an electric switch circuit SW. When the under surface of the silencer 3 comes into contact with the fiber C in the neighboring leaf spring L by the progress of abrasion, the circuit SW is closed. Then, an electric current flows from a power source 5 through a path passing a lamp 4, a conduction wire 6, the fiber C laid in the upper superficial portion La of each leaf spring L, the silencer 3, the fiber C laid in the lower superficial portion La of each leaf spring L, a conduction wire 7 and the power source 5, and warning is given by lighting the lamp 4.
JP18696380A 1980-12-27 1980-12-27 Abrasion warning device for leaf spring for car Granted JPS57110839A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18696380A JPS57110839A (en) 1980-12-27 1980-12-27 Abrasion warning device for leaf spring for car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18696380A JPS57110839A (en) 1980-12-27 1980-12-27 Abrasion warning device for leaf spring for car

Publications (2)

Publication Number Publication Date
JPS57110839A true JPS57110839A (en) 1982-07-09
JPS6140851B2 JPS6140851B2 (en) 1986-09-11

Family

ID=16197782

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18696380A Granted JPS57110839A (en) 1980-12-27 1980-12-27 Abrasion warning device for leaf spring for car

Country Status (1)

Country Link
JP (1) JPS57110839A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3128202A1 (en) * 2015-08-04 2017-02-08 Istanbul Universitesi Teknoloji Transfer Uygulama ve Arastirma Merkezi Damage assessment in composite leaf springs having electrical conductivity
KR20190007170A (en) * 2017-07-12 2019-01-22 현대자동차주식회사 Apparatus for notifying replacement time of composite leaf spring

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3128202A1 (en) * 2015-08-04 2017-02-08 Istanbul Universitesi Teknoloji Transfer Uygulama ve Arastirma Merkezi Damage assessment in composite leaf springs having electrical conductivity
KR20190007170A (en) * 2017-07-12 2019-01-22 현대자동차주식회사 Apparatus for notifying replacement time of composite leaf spring

Also Published As

Publication number Publication date
JPS6140851B2 (en) 1986-09-11

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