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Wheeled vehicle, typically mobility scooter, with central and two outer front wheels for improved steering and stability
Wheeled vehicle, typically mobility scooter, with central and two outer front wheels for improved steering and stability
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机译:轮式车辆,通常为机动代步车,具有中央和两个外部前轮,可改善转向和稳定性
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摘要
A vehicle comprising: steering means for operation by a user,- one or more rear ground- engaging wheels; a first front ground-engaging steerable wheel (34) located substantially in the centre at substantially the front of the vehicle; second and third front ground- engaging wheels (36, 37) located either side of the first front ground-engaging wheel (34) with adjustment means for adjusting the steer angle and the height depending on the steer angle of the first front ground- engaging wheel, the adjustment means being configured such that: when the first front ground- engaging wheel (34) has a straight-ahead steer angle, the steer angles of the second and third front ground-engaging wheels (36, 37) are also straight-ahead and all three front ground- engaging wheels are in contact with the ground; and when the steer angle of the first front ground-engaging wheel (34) is turned such that motion of the vehicle would describe a curve, the steer angle of the front ground-engaging wheel on the outside of said curve is turned at least partly towards the steer angle of the first front ground-engaging wheel, the steer angle of the front ground-engaging wheel on the inside of said curve is not substantially turned towards the steer angle of the first front ground-engaging wheel, and the height of the front ground-engaging wheel on the inside of said curve is raised relative to the height of the front ground-engaging wheel on the outside of said curve, the first front ground- engaging wheel and the front ground-engaging wheel on the outside of said curve remaining in contact with the ground.
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