JPS6268874U

JPS6268874U -

Info

Publication number: JPS6268874U
Application number: JP16158385U
Authority: JP
Priority date: 1985-10-21
Filing date: 1985-10-21
Publication date: 1987-04-30

Description

[Brief explanation of the drawing]

図面は本考案に係る農作業車のパワーステアリ
ング装置の実施例を示し、第１図はステアリング
装置の平面図、第２図はシリンダとナツクルアー
ムの連結部の正面図、第３図及び第４図はシリン
ダ配設部の側面図、第５図は農用トラクター全体
の側面図である。１ａ，１ｂ……車輪、５……車輪取付部材、１
０……車輪操向用シリンダ、１１，１２，１５…
…球面式継手、１３……パワーステアリングバル
ブ、１７……ピツトマンアーム、１８……接当部
、Ｎ……位置、ＵＰ……上昇方向。 The drawings show an embodiment of the power steering device for an agricultural vehicle according to the present invention, in which FIG. 1 is a plan view of the steering device, FIG. 2 is a front view of the connecting portion between the cylinder and the knuckle arm, and FIGS. 3 and 4 are FIG. 5 is a side view of the cylinder arrangement section, and FIG. 5 is a side view of the entire agricultural tractor. 1a, 1b...Wheel, 5...Wheel mounting member, 1
0...Cylinder for wheel steering, 11, 12, 15...
... Spherical joint, 13 ... Power steering valve, 17 ... Pitman arm, 18 ... Contact portion, N ... Position, UP ... Ascent direction.

Claims

[Scope of utility model registration request]

A wheel mounting member 5 having steerable wheels (1a or 1b) mounted on both left and right ends is connected to the fuselage so as to be swingable up and down about an axis _P1 in the longitudinal direction of the fuselage. A wheel steering cylinder 10 is installed between the attached knuckle arm 7 and the fuselage, with a spherical joint (11 or 12) interposed between the knuckle arm 7 and the fuselage, and A power steering device for an agricultural vehicle, in which a power steering valve 13 attached to a tube side of a cylinder 10 for use in agricultural vehicles is interlocked and connected to a pitman arm 17 provided on the machine body via a spherical joint 15, the power steering valve 13, the wheel mounting member 5 is moved in a direction UP in which the knuckle arm 7 side of the wheel mounting member 5 rises relative to the aircraft from a position N where the left and right wheels 1a, 1b have the same height relative to the aircraft. The knuckle arm 7 is arranged so as to be in contact with the power steering valve 13 and to push the power steering valve 13 into an inclined position in which the upper end thereof is located outward of the fuselage as the power steering valve 13 swings. Power steering device for agricultural vehicles.