JPS55129632A - Warning device for abnormal wear of brake lining - Google Patents

Warning device for abnormal wear of brake lining

Info

Publication number
JPS55129632A
JPS55129632A JP3421079A JP3421079A JPS55129632A JP S55129632 A JPS55129632 A JP S55129632A JP 3421079 A JP3421079 A JP 3421079A JP 3421079 A JP3421079 A JP 3421079A JP S55129632 A JPS55129632 A JP S55129632A
Authority
JP
Japan
Prior art keywords
shoe
brake
wear
lining
cam
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
JP3421079A
Other languages
Japanese (ja)
Inventor
Makoto Honma
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.)
UD Trucks Corp
Original Assignee
UD Trucks 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 UD Trucks Corp filed Critical UD Trucks Corp
Priority to JP3421079A priority Critical patent/JPS55129632A/en
Publication of JPS55129632A publication Critical patent/JPS55129632A/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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
    • F16D66/02—Apparatus for indicating wear
    • F16D66/021—Apparatus for indicating wear using electrical detection or indication means
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
    • F16D2125/22—Mechanical mechanisms converting rotation to linear movement or vice versa acting transversely to the axis of rotation
    • F16D2125/28—Cams; Levers with cams
    • F16D2125/30—Cams; Levers with cams acting on two or more cam followers, e.g. S-cams

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

PURPOSE:To operate the warning device for wear and enable a replacement period of the brake lining to be surely informed, by detecting the state of abnormal wear of the brake lining through a detecting switch in accordance with an operating amount of the shoe or the member relatively moving with shoe when the brake is applied. CONSTITUTION:A shoe 4 axially supported to a brake bracket 2 through an anchor pin 3 is expansively moved by the rotary operation of an S-shaped cam 5 engaged to the free end of said shoe 4. The press contact operation of a lining 6 neighboring to peripheral walls of the shoe 4 to a drum 7 causes an axle 1 that rotates as an integral unit with the drum 7 to be applied the brake. At this time, the constitution is such that an excessive amount of wear of lining 6 beyond the safety permissible limitation can be detected by a degree of rotary angle theta of the cam 5 for expansively opening the shoe 4 by the operating amount corresponding to the above described amount of wear at the time of brake application. For instance, an engagement groove 8a is provided in a shaft 8 of the cam 5 and a contact 9a of a switch 9 falling down into said groove can generate a warning signal.
JP3421079A 1979-03-26 1979-03-26 Warning device for abnormal wear of brake lining Pending JPS55129632A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3421079A JPS55129632A (en) 1979-03-26 1979-03-26 Warning device for abnormal wear of brake lining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3421079A JPS55129632A (en) 1979-03-26 1979-03-26 Warning device for abnormal wear of brake lining

Publications (1)

Publication Number Publication Date
JPS55129632A true JPS55129632A (en) 1980-10-07

Family

ID=12407789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3421079A Pending JPS55129632A (en) 1979-03-26 1979-03-26 Warning device for abnormal wear of brake lining

Country Status (1)

Country Link
JP (1) JPS55129632A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0258625A2 (en) * 1986-09-05 1988-03-09 Eaton Corporation S cam for drum brake
ES2154963A1 (en) * 1997-12-18 2001-04-16 Castineira Jaime Rodriguez Brake cam, with electronic wear and tear control and final block stoppers
CN107529591A (en) * 2017-11-14 2018-01-02 绍兴驰达汽车配件制造有限公司 A kind of automobile drum type brake gasket wear electronic alarm assembly
CN110159681A (en) * 2019-04-25 2019-08-23 瑞安市纳德睿电子科技有限公司 A kind of adjustment arm angle sensor with brake alarm device for vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0258625A2 (en) * 1986-09-05 1988-03-09 Eaton Corporation S cam for drum brake
ES2154963A1 (en) * 1997-12-18 2001-04-16 Castineira Jaime Rodriguez Brake cam, with electronic wear and tear control and final block stoppers
CN107529591A (en) * 2017-11-14 2018-01-02 绍兴驰达汽车配件制造有限公司 A kind of automobile drum type brake gasket wear electronic alarm assembly
CN110159681A (en) * 2019-04-25 2019-08-23 瑞安市纳德睿电子科技有限公司 A kind of adjustment arm angle sensor with brake alarm device for vehicle

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