| 摘要 |
<p>PURPOSE:To improve traveling stability by linking the supporting member of cross-arm support shafts which are linked together via a longitudinally directed longitudinal arm, to a linking member which is linked to a rear wheel pivotally installing means to which a rear wheel is provided. CONSTITUTION:So long as front wheels 3a, 3b or a rear wheel 4 is not floated up from a road surface as in the case when a load is applied to the front portion of a body 1 at the time of braking, etc., when a load is applied to the rear portion of the body 1 due to increase in the weight of riders, or when a load is applied to the whole body 1 due to centrifugal force at the time of turningly traveling, and the like, cross-arm support shafts 32, 42 are held by a cross-arm support shaft supporting member 28 so as to be kept nearly horizontally at all times. Hence, when the body 1 is inclined at the turningly traveling time, even if a vehicle is seen in a plan view, the horizontal longitudinal axis in the longitudinal direction of a vehicle is in parallel or in a straight line with the cross-arm support shafts 32, 42. Thereby, both right and left ends of upper and lower arms 31, 41 will not be shifted separately in the unintended longitudinal direction while also preventing an inadvertent steering angle, obtaining a smooth driving feeling while improving traveling stability.</p> |
