JPS5660758A - Pneumatic brake for tractor - Google Patents

Pneumatic brake for tractor

Info

Publication number
JPS5660758A
JPS5660758A JP13577079A JP13577079A JPS5660758A JP S5660758 A JPS5660758 A JP S5660758A JP 13577079 A JP13577079 A JP 13577079A JP 13577079 A JP13577079 A JP 13577079A JP S5660758 A JPS5660758 A JP S5660758A
Authority
JP
Japan
Prior art keywords
brake
pressure
tractor
valve
relay
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
JP13577079A
Other languages
Japanese (ja)
Other versions
JPS6341777B2 (en
Inventor
Yoshihiro Matsumura
Tamio Tanaka
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.)
Nabco Ltd
Original Assignee
Nabco 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 Nabco Ltd filed Critical Nabco Ltd
Priority to JP13577079A priority Critical patent/JPS5660758A/en
Publication of JPS5660758A publication Critical patent/JPS5660758A/en
Publication of JPS6341777B2 publication Critical patent/JPS6341777B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To control the pressure of a pressure fluid used in a pneumatic brake of a tractor during the tractor's running alone and coupled with a trailer by equipping a relay valve, which is to supply the pressure fluid to the brake actuator at the tractor's rear wheels, with a relay piston having a special stepped construction.
CONSTITUTION: An outlet port 9 of a brake valve 1, which is equipped with a brake pedal 2 to be operated by an operator and is connected to reservoirs 7, 8 filled with a fluid with the predetermined pressure, is connected to front brake chambers 14, 15 of the tractor while another outlet 16 is connected to a pilot port 19 of a relay valve 18 and a pilot port 22 of another relay valve 21 which is to transmit brake pressure to the trailer. A relay piston 52 of this relay valve 18 is formed with a step, where the smaller peripheral part 54 shall receive the brake pressure and the wider peripheral part 58 the brake pressure from a service line 32. This relay piston 52 works to control a feed/exhaust valve 60 which is to feed and exhaust the pressure fluid to/from the rear wheel side.
COPYRIGHT: (C)1981,JPO&Japio
JP13577079A 1979-10-19 1979-10-19 Pneumatic brake for tractor Granted JPS5660758A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13577079A JPS5660758A (en) 1979-10-19 1979-10-19 Pneumatic brake for tractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13577079A JPS5660758A (en) 1979-10-19 1979-10-19 Pneumatic brake for tractor

Publications (2)

Publication Number Publication Date
JPS5660758A true JPS5660758A (en) 1981-05-25
JPS6341777B2 JPS6341777B2 (en) 1988-08-18

Family

ID=15159446

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13577079A Granted JPS5660758A (en) 1979-10-19 1979-10-19 Pneumatic brake for tractor

Country Status (1)

Country Link
JP (1) JPS5660758A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62241753A (en) * 1986-04-03 1987-10-22 アライド・コ−ポレ−シヨン Two system brake valve
KR100493556B1 (en) * 1996-07-10 2005-09-12 가부시키가이샤 고마쓰 세이사쿠쇼 Brake control device for traveling vehicle and its control method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5133424A (en) * 1974-09-12 1976-03-22 Jidosha Kiki Co Torakutaa no bureekisochi

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5133424A (en) * 1974-09-12 1976-03-22 Jidosha Kiki Co Torakutaa no bureekisochi

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62241753A (en) * 1986-04-03 1987-10-22 アライド・コ−ポレ−シヨン Two system brake valve
KR100493556B1 (en) * 1996-07-10 2005-09-12 가부시키가이샤 고마쓰 세이사쿠쇼 Brake control device for traveling vehicle and its control method

Also Published As

Publication number Publication date
JPS6341777B2 (en) 1988-08-18

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