JPS6362602U - - Google Patents

Info

Publication number
JPS6362602U
JPS6362602U JP15763486U JP15763486U JPS6362602U JP S6362602 U JPS6362602 U JP S6362602U JP 15763486 U JP15763486 U JP 15763486U JP 15763486 U JP15763486 U JP 15763486U JP S6362602 U JPS6362602 U JP S6362602U
Authority
JP
Japan
Prior art keywords
boom
bucket
lowering
flow rate
front loader
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
JP15763486U
Other languages
Japanese (ja)
Other versions
JPH0440009Y2 (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 JP15763486U priority Critical patent/JPH0440009Y2/ja
Publication of JPS6362602U publication Critical patent/JPS6362602U/ja
Application granted granted Critical
Publication of JPH0440009Y2 publication Critical patent/JPH0440009Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Lifting Devices For Agricultural Implements (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Fluid-Pressure Circuits (AREA)

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油圧回路図、
第2図は同フロントローダの側面図、第3図は同
制御回路のブロツク図、第4図は同圧力―流量特
性図、第5図及び第6図は別の実施例を示すブロ
ツク図である。 1……トラクタ車体、4……フロントローダ、
6……ブーム、7……ブームシリンダ、8……バ
ケツト、9……バケツツトシリンダ、10……ブ
ーム制御弁、12……電磁比例流量調整弁、16
……圧力スイツチ、17……制御回路、36……
可変利得増幅器。
FIG. 1 is a hydraulic circuit diagram showing an embodiment of the present invention;
Figure 2 is a side view of the front loader, Figure 3 is a block diagram of the control circuit, Figure 4 is a pressure-flow characteristic diagram, and Figures 5 and 6 are block diagrams showing other embodiments. be. 1...Tractor body, 4...Front loader,
6... Boom, 7... Boom cylinder, 8... Bucket, 9... Bucket cylinder, 10... Boom control valve, 12... Electromagnetic proportional flow rate adjustment valve, 16
...Pressure switch, 17...Control circuit, 36...
Variable gain amplifier.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 先端にバケツト8を有するブーム6を車体1側
に昇降自在に枢着し、このブーム6をブームシリ
ンダ7により昇降させるようにしたフロントロー
ダにおいて、バケツト8による被運搬物の持上げ
重量を検出するセンサ16を設け、ブーム6の下
降動作時に、持上げ荷重が大になる程、ブームシ
リンダ7の下降流量が小さくなるように前記セン
サ16からの信号により流量を制御する制御回路
17を設けたことを特徴とするフロントローダの
下降速度制御装置。
In a front loader in which a boom 6 having a bucket 8 at its tip is pivotally mounted to the vehicle body 1 side so as to be able to rise and fall freely, and this boom 6 is raised and lowered by a boom cylinder 7, a sensor detects the weight of an object to be transported by the bucket 8. 16, and a control circuit 17 that controls the flow rate based on the signal from the sensor 16 so that the lowering flow rate of the boom cylinder 7 becomes smaller as the lifting load becomes larger during the lowering operation of the boom 6. Lowering speed control device for front loader.
JP15763486U 1986-10-14 1986-10-14 Expired JPH0440009Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15763486U JPH0440009Y2 (en) 1986-10-14 1986-10-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15763486U JPH0440009Y2 (en) 1986-10-14 1986-10-14

Publications (2)

Publication Number Publication Date
JPS6362602U true JPS6362602U (en) 1988-04-25
JPH0440009Y2 JPH0440009Y2 (en) 1992-09-18

Family

ID=31080366

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15763486U Expired JPH0440009Y2 (en) 1986-10-14 1986-10-14

Country Status (1)

Country Link
JP (1) JPH0440009Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63147800A (en) * 1986-12-09 1988-06-20 三菱重工業株式会社 Lowering speed controller for mast, etc. of forklift
WO2013137111A1 (en) * 2012-03-15 2013-09-19 カヤバ工業株式会社 Transport carriage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63147800A (en) * 1986-12-09 1988-06-20 三菱重工業株式会社 Lowering speed controller for mast, etc. of forklift
WO2013137111A1 (en) * 2012-03-15 2013-09-19 カヤバ工業株式会社 Transport carriage

Also Published As

Publication number Publication date
JPH0440009Y2 (en) 1992-09-18

Similar Documents

Publication Publication Date Title
JPS6362602U (en)
JPS62114944U (en)
JPH03108310U (en)
JPH0262952U (en)
JPS6183804U (en)
JPH0227904A (en) Apparatus for controlling working part of mobile farm working machine
JPH039107U (en)
JPS62196252U (en)
JP2510037B2 (en) Lift control device
JPH0437195U (en)
JPH02111205U (en)
JPS6442358U (en)
JPS6352900U (en)
JPS6140806U (en) Agricultural tractor work equipment control device
JPS5826931B2 (en) Work equipment lifting mechanism for ground-based work equipment
JPS61201503U (en)
JPH0371707U (en)
JPS62133754U (en)
JPH0337809U (en)
JPS63145414U (en)
JPS59175312U (en) Agricultural tractor hydraulic system
JPS62186605U (en)
JPS6111691U (en) Crane truck remote control device
JPS60182708U (en) Angle control device for work equipment
JPH0315780U (en)