JPS58107734U

JPS58107734U - Combine cutting height control mechanism

Info

Publication number: JPS58107734U
Application number: JP421982U
Authority: JP
Inventors: 照男南
Original assignee: Kubota Corp
Current assignee: Kubota Corp
Priority date: 1982-01-16
Filing date: 1982-01-16
Publication date: 1983-07-22
Also published as: JPS631780Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

図面は本考案に係るコンバインの刈高さ制御機構の実施
例を示し、第１図はコンバインの一部省略側面図、第２
図はセンサーを示す要部の側面図、第３図は刈高さ制御
機構を示す斜視図、第４図は第３図の要部の断面図、第
５図は第３図の■−■線一部展開断面図、第６図イ１口
、ハ、二はバルブの作動状態を示す説明図、第７図は油
圧回路図である。４・・・・・・刈取部、８・・・・・・油圧アクチュエ
ータ、１５．１６・・・・・・バルブのスプール、２３
・・・・・・刈高さ制御機構、３５・・・・・・手動操
作具、４１．４２・・・・・・融通機構、４３・・・・
・・固定機構、■・・・・・・コントロールバルブ。　
　　　　′ 第１図ｎ　　　　　　６ｕ第５図　　　　　　　　　。賜３５１　２．２　　ト・第４図 −Ｉ　　＋）−・証拠８′、゛半１４　−　　　・The drawings show an embodiment of the cutting height control mechanism for a combine harvester according to the present invention, and FIG. 1 is a partially omitted side view of the combine harvester, and FIG.
The figure is a side view of the main part showing the sensor, Fig. 3 is a perspective view showing the cutting height control mechanism, Fig. 4 is a cross-sectional view of the main part of Fig. 3, and Fig. 5 is the ■-■ of Fig. 3. A partially exploded sectional view, FIG. 6A, C, and II are explanatory diagrams showing the operating states of the valves, and FIG. 7 is a hydraulic circuit diagram. 4... Reaping section, 8... Hydraulic actuator, 15.16... Valve spool, 23
...Mowing height control mechanism, 35...Manual operation tool, 41.42...Flexibility mechanism, 43...
・・Fixing mechanism, ■・・・・Control valve.
' Figure 1 n 6u Figure 5 . 351 2.2 Figure 4 - I +) - Evidence 8', Half 14 -

Claims

[Claims for Utility Model Registration] A reaping section 4 is provided on the traveling vehicle body so that it can be raised and lowered by a hydraulic actuator 8, and the reaping section 4 is provided with a ground sensor 13 for detecting its height above the ground, and the hydraulic actuator 8 is controlled. Valve V spool 15
．． 16 constitutes a cutting height control mechanism 23 that is interlocked and connected to the sensor 13 via a mechanical linkage mechanism to automatically maintain the ground height of the cutting section 4 within a set range, and The manual operation tool 35 is connected to the expression linkage mechanism via a flexibility mechanism 41.42 that allows the mowing height control mechanism 23 to raise and lower the control valve (2), and the range of flexibility by the flexibility mechanism 41.42 is controlled. A fixing mechanism 43 is configured such that the control valve V can be freely operated up or down by operating the control valve V, and the fixing mechanism 43 fixes the manual operating tool 35 in the operating state of the cutting height control mechanism 23'. In the mowing height control mechanism of the combine harvester provided, the flexibility mechanism 41, 42 is configured such that when the manual operating tool is in a fixed state, the allowable range for raising the spool 15° 16 is greater than the allowable range for lowering the spool 15°16. A mowing height control mechanism for a combine harvester, characterized in that the mowing height control mechanism for a combine harvester is configured such that the actuator 8 can be operated up to a high-speed operation range only by a lifting operation.