JPH0441544U - - Google Patents
Info
- Publication number
- JPH0441544U JPH0441544U JP8105290U JP8105290U JPH0441544U JP H0441544 U JPH0441544 U JP H0441544U JP 8105290 U JP8105290 U JP 8105290U JP 8105290 U JP8105290 U JP 8105290U JP H0441544 U JPH0441544 U JP H0441544U
- Authority
- JP
- Japan
- Prior art keywords
- arm cylinder
- valve
- arm
- sensors
- bucket
- 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
- 238000006073 displacement reaction Methods 0.000 claims 1
Landscapes
- Operation Control Of Excavators (AREA)
Description
第１図は本考案の実施例である要部を示し、第
２図はフロントローダの側面図、第３図はその一
部を示す。
１……バケツト、２……アーム、３……アーム
シリンダ、４……バルブ、５ａ，５ｂ……油路、
６ａ，６ｂ……圧力センサ、７……ストロークセ
ンサ、８……コントローラ。
FIG. 1 shows a main part of an embodiment of the present invention, FIG. 2 is a side view of a front loader, and FIG. 3 shows a part thereof. 1... Bucket, 2... Arm, 3... Arm cylinder, 4... Valve, 5a, 5b... Oil path,
6a, 6b...pressure sensor, 7...stroke sensor, 8...controller.
Claims (1)
シリンダ３により昇降自在にして構成するフロン
トローダにおいて、前記アームシリンダ３とバル
ブ４の間の両油路５ａ，５ｂ中にはそれぞれ圧力
センサ６ａ，６ｂを介装するとともに、前記アー
ムシリンダ３の側方にはストロークセンサ７を配
備し、コントローラ８と前記各センサ６ａ，６ｂ
，７を接続して荷重大の際には前記バルブ４のス
プールの変位量が小となるよう制御可能にして構
成したことを特徴とする降下速度制御装置。 In a front loader comprising an arm 2 having a bucket 1 on the tip end thereof, which can be raised and lowered by an arm cylinder 3, pressure sensors 6a and 6b are installed in both oil passages 5a and 5b between the arm cylinder 3 and the valve 4, respectively. In addition, a stroke sensor 7 is provided on the side of the arm cylinder 3, and a controller 8 and each of the sensors 6a, 6b are connected to each other.
, 7 are connected so that the amount of displacement of the spool of the valve 4 can be controlled to be small when the load is large.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8105290U JP2537793Y2 (en) | 1990-07-30 | 1990-07-30 | Front loader descent speed control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8105290U JP2537793Y2 (en) | 1990-07-30 | 1990-07-30 | Front loader descent speed control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0441544U true JPH0441544U (en) | 1992-04-08 |
| JP2537793Y2 JP2537793Y2 (en) | 1997-06-04 |
Family
ID=31626653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8105290U Expired - Lifetime JP2537793Y2 (en) | 1990-07-30 | 1990-07-30 | Front loader descent speed control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2537793Y2 (en) |
-
1990
- 1990-07-30 JP JP8105290U patent/JP2537793Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2537793Y2 (en) | 1997-06-04 |
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