JPS6231574U

JPS6231574U -

Info

Publication number: JPS6231574U
Application number: JP12442185U
Authority: JP
Priority date: 1985-08-13
Filing date: 1985-08-13
Publication date: 1987-02-25

Description

[Brief explanation of drawings]

図面は本考案に係る車輪操向装置の実施例を示
し、第１図は概略平面図、第２図ないし第５図は
リンク機構部分の平面図、第６図はストツパー作
用状態の平面図、第７図は乗用型回植機全体の側
面図である。第８図は従来操向装置の概略平面図
である。１ａ，１ｂ……走行用車輪、５……車体部分、
９……連動部材、１０……油圧シリンダ、１０ａ
……シリンダチユーブ、１１……コントロールバ
ルブ、１１ａ……操作部、１６……バルブ側リン
ク、１７……ハンドル側リンク、２０……リンク
機構、２２……ハンドル、２４ａ，２４ｂ……ス
トツパー。 The drawings show an embodiment of the wheel steering device according to the present invention, in which Fig. 1 is a schematic plan view, Figs. 2 to 5 are plan views of the link mechanism portion, and Fig. 6 is a plan view of the stopper operating state. FIG. 7 is a side view of the entire riding-type replanter. FIG. 8 is a schematic plan view of a conventional steering device. 1a, 1b... traveling wheels, 5... vehicle body part,
9... Interlocking member, 10... Hydraulic cylinder, 10a
... Cylinder tube, 11 ... Control valve, 11a ... Operation section, 16 ... Valve side link, 17 ... Handle side link, 20 ... Link mechanism, 22 ... Handle, 24a, 24b ... Stopper.

Claims

[Scope of utility model registration request]

A wheel steering device in which a control valve 11 of a hydraulic cylinder 10 for steering the traveling wheels 1a, 1b is attached to the tube 10a side of the hydraulic cylinder 10 and linked to a handle 22 via a link mechanism 20. The hydraulic cylinder 1
The tube 10a side of 0 is connected to the vehicle body part 5, and stoppers 24a, 24b that determine the steering limits of the traveling wheels 1a, 1b act on the link mechanism 20, and the hydraulic cylinder 10 and the traveling wheels 1a, 1b is swingably attached to the vehicle body portion 5 to form the link mechanism 20, the valve side link 16, which is interlockingly connected to the operating portion 11a of the control valve 11, is attached to the swing axis of the interlocking member 9. A handle-side link 1 is attached to the free end side of the interlocking member 9 so as to be swingable about an axis parallel or substantially parallel to the core, and is interlockingly connected to the handle 22.
7 is attached to the vehicle body part 5 concentrically with the interlocking member 9 and swingable relative to it, and as the handle side link 17 swings, the control valve 11 is placed in the cylinder drive position. As the side link 16 is swung by the handle-side link 17 and the interlocking member 9 is swung, the valve-side link 16 is moved to the side where the control valve 11 is at the cylinder stop position. Swinging of the member 9 and the handle side link 1
so as to be operated in a swinging manner by the support provided by 7.
A wheel steering device in which the valve side link 16 and the handle side link 17 are engaged.