JPS5682648A - Auxiliary braking device for industrial vehicle - Google Patents

Auxiliary braking device for industrial vehicle

Info

Publication number
JPS5682648A
JPS5682648A JP15738679A JP15738679A JPS5682648A JP S5682648 A JPS5682648 A JP S5682648A JP 15738679 A JP15738679 A JP 15738679A JP 15738679 A JP15738679 A JP 15738679A JP S5682648 A JPS5682648 A JP S5682648A
Authority
JP
Japan
Prior art keywords
pump
brake
oil pressure
hydraulic
valve
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
JP15738679A
Other languages
Japanese (ja)
Inventor
Mitsuo Suzuki
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.)
Toyota Industries Corp
Original Assignee
Toyoda Automatic Loom Works 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 Toyoda Automatic Loom Works Ltd filed Critical Toyoda Automatic Loom Works Ltd
Priority to JP15738679A priority Critical patent/JPS5682648A/en
Publication of JPS5682648A publication Critical patent/JPS5682648A/en
Pending legal-status Critical Current

Links

Landscapes

  • Transmission Of Braking Force In Braking Systems (AREA)

Abstract

PURPOSE: To prolong the lifetime of a brake lining through reduction of a load on the main braking system by enabling adding of the counter force generated by the operation of a brake pedal to a hydraulic pump connected to a motor.
CONSTITUTION: When a foot brake pedal 37 is pushed, a shift valve 70 is shifted to a position C2 and the hydraulic channel of direction shift valves 50 and 60 and a pump 32 is intercepted, while the oil from the pump 32 is returned to a relief valve 80 through the intermediary of pipes 36 and 45. However, since the valve 80 is left closed when the oil pressure is below a set pressure, the resistance due to the oil pressure in a hydraulic system increases and thereby the braking force is applied to the pump 32, i.e. the driving shaft 33 of an engine 3. Accordingly, when the above- mentioned pedal 37 is pushed down, the force of the engine brake is applied in addition to the origianl braking action by the supply of the brake oil pressure to wheel cylinders 95 and thereby the load on the main braking system can be reduced.
COPYRIGHT: (C)1981,JPO&Japio
JP15738679A 1979-12-06 1979-12-06 Auxiliary braking device for industrial vehicle Pending JPS5682648A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15738679A JPS5682648A (en) 1979-12-06 1979-12-06 Auxiliary braking device for industrial vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15738679A JPS5682648A (en) 1979-12-06 1979-12-06 Auxiliary braking device for industrial vehicle

Publications (1)

Publication Number Publication Date
JPS5682648A true JPS5682648A (en) 1981-07-06

Family

ID=15648501

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15738679A Pending JPS5682648A (en) 1979-12-06 1979-12-06 Auxiliary braking device for industrial vehicle

Country Status (1)

Country Link
JP (1) JPS5682648A (en)

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