JPH01125021U - - Google Patents
Info
- Publication number
- JPH01125021U JPH01125021U JP1937088U JP1937088U JPH01125021U JP H01125021 U JPH01125021 U JP H01125021U JP 1937088 U JP1937088 U JP 1937088U JP 1937088 U JP1937088 U JP 1937088U JP H01125021 U JPH01125021 U JP H01125021U
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- height
- cutting
- receivers
- value
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Harvester Elements (AREA)
Description
第１図は本考案にかかる自動刈高さ制御装置を
簡略的に示すブロツク図、第２図は同制御装置の
一部のブロツク図、第３図は同制御装置のフロー
チヤート図、第４図は同制御装置を適用するコン
バインの全体を示す側面図である。
４……刈取部、５……昇降装置、７……検出セ
ンサー。
FIG. 1 is a block diagram schematically showing an automatic cutting height control device according to the present invention, FIG. 2 is a block diagram of a part of the same control device, FIG. 3 is a flowchart of the same control device, and FIG. The figure is a side view showing the entire combine harvester to which the control device is applied. 4... Reaping section, 5... Lifting device, 7... Detection sensor.
Claims (1)
サー７と、このセンサー７の検出結果に基づき前
記刈取部の昇降制御を行う昇降装置５とを備えた
自動刈高さ制御装置において、 前記刈高さセンサー７を、１つの超音波発信器
７ａと複数の超音波受信器７ｂ，７ｃによつて構
成すると共に、 複数の受信器の受信結果の平均値をもつて刈高
さ検出結果を出力する手段と、 複数の受信器の受信結果の差の絶対値を求め、
この値が所定以上の時、センサー検出結果出力を
禁止する手段とを備えたことを特徴とする自動刈
高さ制御装置。[Claims for Utility Model Registration] An automatic device comprising a cutting height detection sensor 7 that detects the height of the cutting section 4 above the ground, and a lifting device 5 that controls the lifting and lowering of the cutting section based on the detection result of the sensor 7. In the cutting height control device, the cutting height sensor 7 is constituted by one ultrasonic transmitter 7a and a plurality of ultrasonic receivers 7b, 7c, and the average value of the reception results of the plurality of receivers is A means for outputting the mowing height detection results, and determining the absolute value of the difference between the reception results of the plurality of receivers,
An automatic mowing height control device comprising means for prohibiting output of sensor detection results when this value is greater than a predetermined value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1937088U JPH01125021U (en) | 1988-02-16 | 1988-02-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1937088U JPH01125021U (en) | 1988-02-16 | 1988-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01125021U true JPH01125021U (en) | 1989-08-25 |
Family
ID=31234820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1937088U Pending JPH01125021U (en) | 1988-02-16 | 1988-02-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01125021U (en) |
-
1988
- 1988-02-16 JP JP1937088U patent/JPH01125021U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01125021U (en) | ||
| JPS61158117U (en) | ||
| JPS62136124U (en) | ||
| JPS60177726U (en) | Automatic cutting height control device for harvesters | |
| JPS62178842U (en) | ||
| JPS61131724U (en) | ||
| JPH0421216U (en) | ||
| JPH0263606U (en) | ||
| JPS62144426U (en) | ||
| JPS61160619U (en) | ||
| JPH0433312U (en) | ||
| JPS62134328U (en) | ||
| JPS62139223U (en) | ||
| JPH01167129U (en) | ||
| JPS61122667U (en) | ||
| JPH0236912U (en) | ||
| JPS62164735U (en) | ||
| JPS6294725U (en) | ||
| JPS62167518U (en) | ||
| JPS59107822U (en) | Ground height control device for agricultural machinery | |
| JPS6046835U (en) | Agricultural machine height control mechanism | |
| JPH0168737U (en) | ||
| JPS6172152U (en) | ||
| JPS62149924U (en) | ||
| JPS62148019U (en) |