JPS634610U - - Google Patents

Info

Publication number
JPS634610U
JPS634610U JP9948486U JP9948486U JPS634610U JP S634610 U JPS634610 U JP S634610U JP 9948486 U JP9948486 U JP 9948486U JP 9948486 U JP9948486 U JP 9948486U JP S634610 U JPS634610 U JP S634610U
Authority
JP
Japan
Prior art keywords
work equipment
sensor
variable throttle
throttle device
hydraulic system
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
JP9948486U
Other languages
English (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 JP9948486U priority Critical patent/JPS634610U/ja
Publication of JPS634610U publication Critical patent/JPS634610U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Lifting Devices For Agricultural Implements (AREA)

Description

【図面の簡単な説明】
第１図は本考案の油圧装置側面断面図。第２図
は第１図におけるＢ―Ｂ矢視断面図。第３図は他
の実施例を示すシリンダーヘツド部側面断面図。
第４図は本考案の制御を示す油圧回路図である。 １……リフトアーム、３ｆ……油路、４……ス
トツプバルブ、１３……スプール、２４……セン
サー、２５……リヤカバー、２６……コントロー
ラ、２７……モーター。

Claims (1)

    【実用新案登録請求の範囲】
  1. トラクター後部に装着する作業機を昇降する油
    圧装置の戻し油路に可変絞り装置を設けると共に
    、作業機又はリフトアーム部に作業機と地表との
    相対位置を検知するセンサーを設け、地表近くよ
    り緩速降下すべくセンサーと可変絞り装置を連動
    させたことを特徴とする作業機の降下速度制御装
    置。
JP9948486U 1986-06-27 1986-06-27 Pending JPS634610U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9948486U JPS634610U (ja) 1986-06-27 1986-06-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9948486U JPS634610U (ja) 1986-06-27 1986-06-27

Publications (1)

Publication Number Publication Date
JPS634610U true JPS634610U (ja) 1988-01-13

Family

ID=30968399

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9948486U Pending JPS634610U (ja) 1986-06-27 1986-06-27

Country Status (1)

Country Link
JP (1) JPS634610U (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS559761A (en) * 1978-07-07 1980-01-23 Iseki Agricult Mach Dropping speed regulater of farm working machine
JPS60244204A (ja) * 1984-05-18 1985-12-04 井関農機株式会社 作業機昇降装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS559761A (en) * 1978-07-07 1980-01-23 Iseki Agricult Mach Dropping speed regulater of farm working machine
JPS60244204A (ja) * 1984-05-18 1985-12-04 井関農機株式会社 作業機昇降装置

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