JPH01158378U

JPH01158378U -

Info

Publication number: JPH01158378U
Application number: JP5480088U
Authority: JP
Priority date: 1988-04-22
Filing date: 1988-04-22
Publication date: 1989-11-01

Description

[Brief explanation of drawings]

第１図は本考案に係る多方向操向機構を装備し
た自走式作業車の一例を示す平面図、第２図は同
上自走式作業車に於ける多方向操向機構の要部を
開示した斜視図、第３図は同上自走式作業車に於
ける多方向操向機構の断面図である。１……自走式作業車、２……車体、３ａ，３ｂ
……駆動輪兼操舵輪、３ｃ，３ｄ……キヤスター
輪（フリー回転式）、４……ステア角切換クラツ
チ、４ａ……操舵軸、４ｂ……ギヤ、４ｃ……ギ
ヤ、４ｄ……第１のクラツチギヤ、４ｅ……カウ
ンタギヤ、４ｆ……第２のクラツチギヤ、４ｇ…
…クラツチ盤、４ｈ……シヤフト、５ａ……スプ
ロケツト、５ｂ……スプロケツト、６ｂ……チエ
ン、７……アクチエータ、８ａ，８ｂ……油圧駆
動モータ、９ａ，９ｂ……スプロケツト、１０ａ
，１０ｂ……スプロケツト、１１ａ，１１ｂ……
チエン、１２……昇降台、１３……昇降ガイド支
柱、１４……操作レバー、１５……操作レバー。 Fig. 1 is a plan view showing an example of a self-propelled working vehicle equipped with a multi-directional steering mechanism according to the present invention, and Fig. 2 shows the main parts of the multi-directional steering mechanism in the same self-propelled working vehicle. The disclosed perspective view, FIG. 3, is a sectional view of the multi-directional steering mechanism in the self-propelled working vehicle. 1...Self-propelled work vehicle, 2...Vehicle body, 3a, 3b
... Drive wheel and steering wheel, 3c, 3d ... Caster wheel (free rotation type), 4 ... Steering angle switching clutch, 4a ... Steering shaft, 4b ... Gear, 4c ... Gear, 4d ... First clutch gear, 4e...counter gear, 4f...second clutch gear, 4g...
...Clutch board, 4h...Shaft, 5a...Sprocket, 5b...Sprocket, 6b...Chain, 7...Actuator, 8a, 8b...Hydraulic drive motor, 9a, 9b...Sprocket, 10a
, 10b... Sprocket, 11a, 11b...
Chain, 12... Lifting platform, 13... Lifting guide column, 14... Operating lever, 15... Operating lever.

Claims

[Scope of utility model registration request]

It is a four-wheel type self-propelled work vehicle equipped with wheels on the front, rear, left and right sides, and two of the front and rear wheels on one side of the four wheels are configured as drive wheels and steering wheels, and the other side of the four wheels is configured as a driving wheel and a steering wheel. In a self-propelled work vehicle whose two wheels are caster wheels (free rotation type), the steering of the two front and rear wheels on one side consisting of the drive wheel and steering wheel is as follows:
A multi-directional steering mechanism for a self-propelled work vehicle, characterized in that the steering mechanism is configured to be operated by a hydraulically driven chain wound between sprockets provided on the steering shafts of each of the driving and steering wheels.