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
Links
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Lifting Devices For Agricultural Implements (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Fluid-Pressure Circuits (AREA)
Description
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)
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.
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)
| 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 |
-
1986
- 1986-10-14 JP JP15763486U patent/JPH0440009Y2/ja not_active Expired
Cited By (2)
| 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 |
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