| 摘要 |
<p>PURPOSE:To permit the rough position adjustment of a stopper for regulating the max. steering angle by providing an elastic deflection onto one drag link, in the constitution in which each drag link of the front and rear wheel steering mechanisms is connected to a pitman arm interlocked with a steering wheel. CONSTITUTION:The steering device for a four-wheel steered working vehicle such as lawn mower is constituted by connecting the drag link 22 of a steering mechanism A for front wheels 1 and the drag link 25 of a steering mechanism B for rear wheels 2 with a pitman arm 12 which is turned by a steering wheel 9. The front and rear wheels 1 and 2 are steered in the reverse direction each other by the operation of the steering wheel 9, and the max. steering angle of the front and rear wheels l and 2 is regulated by stoppers 26 and 27. In this case, the drag link 25 for the rear wheels 2 is formed into bent form, and after the knuckle arm 24 of the rear wheel 2 contacts a stopper 27 by the elastic deflection due to the deflection of the link 25, the stopper 26 on the knuckle arm 20 of the front wheel 1 collides with an axle frame.</p> |
