JPH0455421U - - Google Patents

Info

Publication number
JPH0455421U
JPH0455421U JP9862590U JP9862590U JPH0455421U JP H0455421 U JPH0455421 U JP H0455421U JP 9862590 U JP9862590 U JP 9862590U JP 9862590 U JP9862590 U JP 9862590U JP H0455421 U JPH0455421 U JP H0455421U
Authority
JP
Japan
Prior art keywords
hydraulic
control valve
travel
pedal
drive
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
JP9862590U
Other languages
Japanese (ja)
Other versions
JP2501000Y2 (en
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 filed Critical
Priority to JP1990098625U priority Critical patent/JP2501000Y2/en
Publication of JPH0455421U publication Critical patent/JPH0455421U/ja
Application granted granted Critical
Publication of JP2501000Y2 publication Critical patent/JP2501000Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例を示す全体構成図、
第２図は別実施例を示す図、第３図および第４図
は従来の油圧走行車両の油圧回路およびブレーキ
装置をそれぞれ示す図である。 １……油圧ポンプ、２……油圧パイロツト式制
御弁、４……油圧モータ、６……パイロツト弁、
６ａ……走行ペダル、７……スローリターン弁、
８Ａ……電磁式前後進切換弁、２０……ブレーキ
装置、２１……ブレーキペダル、２２……エアー
タンク、２３……ブレーキ弁、３０……前後進切
換スイツチ、３１……リレー、３２……圧力スイ
ツチ。 FIG. 1 is an overall configuration diagram showing an embodiment of the present invention;
FIG. 2 is a diagram showing another embodiment, and FIGS. 3 and 4 are diagrams respectively showing a hydraulic circuit and a brake device of a conventional hydraulically driven vehicle. 1...Hydraulic pump, 2...Hydraulic pilot control valve, 4...Hydraulic motor, 6...Pilot valve,
6a... Travel pedal, 7... Slow return valve,
8A...Electromagnetic forward/reverse switching valve, 20... Brake device, 21... Brake pedal, 22... Air tank, 23... Brake valve, 30... Forward/forward switching switch, 31... Relay, 32... Pressure switch.

Claims (1)

【実用新案登録請求の範囲】 原動機によつて駆動される油圧ポンプと、この
油圧ポンプから吐出される油圧により駆動され走
行駆動軸を駆動する油圧モータと、走行ペダルの
操作に応じて切換制御され、前記油圧モータに導
かれる前記油圧ポンプからの圧油を制御する制御
弁と、ブレーキペダルの操作に応じて作動するブ
レーキ手段とを備え、前記走行ペダルの操作の解
除に伴つて前記制御弁を徐々に中立位置に切換え
るようにした油圧走行車両の油圧駆動制御装置に
おいて、 前記ブレーキペダルが所定量以上操作されると
、前記制御弁を直ちに中立位置に切換操作する切
換操作手段を備えることを特徴とする油圧走行車
両の油圧駆動制御装置。[Scope of Claim for Utility Model Registration] A hydraulic pump driven by a prime mover, a hydraulic motor driven by the hydraulic pressure discharged from the hydraulic pump to drive a travel drive shaft, and a hydraulic motor that is switched and controlled according to the operation of a travel pedal. , a control valve that controls pressure oil from the hydraulic pump guided to the hydraulic motor, and a brake means that operates in response to operation of a brake pedal, the control valve being activated when the operation of the travel pedal is released. A hydraulic drive control device for a hydraulic vehicle that gradually switches to a neutral position, further comprising a switching operation means that immediately switches the control valve to the neutral position when the brake pedal is operated by a predetermined amount or more. Hydraulic drive control device for hydraulically driven vehicles.
JP1990098625U 1990-09-20 1990-09-20 Hydraulic drive control device for hydraulically traveling vehicle Expired - Lifetime JP2501000Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990098625U JP2501000Y2 (en) 1990-09-20 1990-09-20 Hydraulic drive control device for hydraulically traveling vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990098625U JP2501000Y2 (en) 1990-09-20 1990-09-20 Hydraulic drive control device for hydraulically traveling vehicle

Publications (2)

Publication Number Publication Date
JPH0455421U true JPH0455421U (en) 1992-05-12
JP2501000Y2 JP2501000Y2 (en) 1996-06-12

Family

ID=31839940

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990098625U Expired - Lifetime JP2501000Y2 (en) 1990-09-20 1990-09-20 Hydraulic drive control device for hydraulically traveling vehicle

Country Status (1)

Country Link
JP (1) JP2501000Y2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0228028A (en) * 1988-07-14 1990-01-30 Iseki & Co Ltd Transmission operation device of tractor and the like

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0228028A (en) * 1988-07-14 1990-01-30 Iseki & Co Ltd Transmission operation device of tractor and the like

Also Published As

Publication number Publication date
JP2501000Y2 (en) 1996-06-12

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