JPS63152703U - - Google Patents

Info

Publication number
JPS63152703U
JPS63152703U JP4621287U JP4621287U JPS63152703U JP S63152703 U JPS63152703 U JP S63152703U JP 4621287 U JP4621287 U JP 4621287U JP 4621287 U JP4621287 U JP 4621287U JP S63152703 U JPS63152703 U JP S63152703U
Authority
JP
Japan
Prior art keywords
ram
state
lock valve
ram lock
puts
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
JP4621287U
Other languages
Japanese (ja)
Other versions
JP2534401Y2 (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 JP1987046212U priority Critical patent/JP2534401Y2/en
Publication of JPS63152703U publication Critical patent/JPS63152703U/ja
Application granted granted Critical
Publication of JP2534401Y2 publication Critical patent/JP2534401Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Fluid-Damping Devices (AREA)
  • Operation Control Of Excavators (AREA)

Description

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

第１図〜第３図は本考案の３実施例を示す油圧
回路図、第４図および第５図はそれぞれ従来の２
例を示す油圧回路図である。 １Ａ，１Ｂ：ラム装置、２Ａ，２Ｂ：チエツク
弁、５，８，２４：切換弁、９：ラムロツク弁、
２０：油圧ポンプ、２１Ａ，２１Ｂ，２５Ａ，２
５Ｂ：連通管路、２３：減圧弁、３２：チエツク
弁。 Figures 1 to 3 are hydraulic circuit diagrams showing three embodiments of the present invention, and Figures 4 and 5 are hydraulic circuit diagrams showing three embodiments of the present invention, respectively.
FIG. 3 is a hydraulic circuit diagram showing an example. 1A, 1B: Ram device, 2A, 2B: Check valve, 5, 8, 24: Switching valve, 9: Ram lock valve,
20: Hydraulic pump, 21A, 21B, 25A, 2
5B: Communication pipe, 23: Pressure reducing valve, 32: Check valve.

Claims (1)

【実用新案登録請求の範囲】 車軸の揺動に応じて伸縮可能な一対のラム装置
と、両ラム装置を連通せしめる第１の状態および
各ラム装置をそれぞれロツクする第２の状態をと
るラムロツク弁と、走行位置および作業位置のい
ずれかに操作され、走行位置において前記ラムロ
ツク弁を前記第１の状態にし、作業位置において
前記ラムロツク弁を前記第２の状態にする切換手
段とを備えた作業車両のラムロツク回路において
、 前記ラムロツク弁が第１の状態から第２の状態
に切換わる前に前記ラムロツク弁を介して前記一
対のラム装置に油圧を作用せしめる加圧手段を具
備することを特徴とする作業車両のラムロツク回
路。[Claims for Utility Model Registration] A pair of ram devices that can expand and contract in response to the rocking of an axle, and a ram lock valve that takes a first state that connects both ram devices and a second state that locks each ram device. and a switching means that is operated to either a traveling position or a working position, and puts the ram lock valve in the first state in the traveling position and puts the ram lock valve in the second state in the working position. The ram lock circuit is characterized in that the ram lock circuit includes pressurizing means for applying hydraulic pressure to the pair of ram devices via the ram lock valve before the ram lock valve is switched from the first state to the second state. Ram lock circuit for work vehicles.
JP1987046212U 1987-03-27 1987-03-27 Lamb lock circuit of work vehicle Expired - Lifetime JP2534401Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987046212U JP2534401Y2 (en) 1987-03-27 1987-03-27 Lamb lock circuit of work vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987046212U JP2534401Y2 (en) 1987-03-27 1987-03-27 Lamb lock circuit of work vehicle

Publications (2)

Publication Number Publication Date
JPS63152703U true JPS63152703U (en) 1988-10-06
JP2534401Y2 JP2534401Y2 (en) 1997-04-30

Family

ID=30865668

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987046212U Expired - Lifetime JP2534401Y2 (en) 1987-03-27 1987-03-27 Lamb lock circuit of work vehicle

Country Status (1)

Country Link
JP (1) JP2534401Y2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012187985A (en) * 2011-03-10 2012-10-04 Tadano Ltd Iron wheel rocking lock device of rail and road dual mode work vehicle
JP2013100004A (en) * 2011-11-08 2013-05-23 Aichi Corp Road railer
JP2014129092A (en) * 2014-03-06 2014-07-10 Aichi Corp Road-rail vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51107714U (en) * 1975-02-27 1976-08-28

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51107714U (en) * 1975-02-27 1976-08-28

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012187985A (en) * 2011-03-10 2012-10-04 Tadano Ltd Iron wheel rocking lock device of rail and road dual mode work vehicle
JP2013100004A (en) * 2011-11-08 2013-05-23 Aichi Corp Road railer
JP2014129092A (en) * 2014-03-06 2014-07-10 Aichi Corp Road-rail vehicle

Also Published As

Publication number Publication date
JP2534401Y2 (en) 1997-04-30

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