초록 ▼

A motorized scooter is disclosed that comprises a steering shaft mounted for rotation about its axis. A tiller is connected to said steering shaft to rotate said steering shaft, and pivotable relative to said steering shaft. A pivot block is mounted on the free end of said steering shaft, a pair of

A motorized scooter is disclosed that comprises a steering shaft mounted for rotation about its axis. A tiller is connected to said steering shaft to rotate said steering shaft, and pivotable relative to said steering shaft. A pivot block is mounted on the free end of said steering shaft, a pair of forks on said tiller straddle the pivot block, and a pivot pin passes through the forks and the pivot block. The pivot block has a pair of lubricating plates of low-friction material on either side of it, so that the forks rest on said lubricating plates to tacilitate pivoting of said steering column. A strut of variable length is connected to the tiller and to said steering shaft so that pivoting of the tiller requires a change in the length of said strut. The strut comprises an inner shaft and an outer sleeve movable along said shaft to vary the length of said strut. Two helical coil springs that in a relaxed condition have an inside diameter smaller than the shalt grip the shaft frictionally to resist movement along the shaft. The coil springs are wound in opposite senses, and are positioned end to end, with their outer ends engaging the sleeve to prevent movement of the sleeve along the shaft and their abutting inner ends projecting radially. An actuating sleeve encircles the coil springs, free to rotate, and has one circumferential end engaging the projecting ends of the coil springs. A Bowden cable has its sleeve and its core respectively attached to the outer sleeve of the strut and to the actuating sleeve. Attached to the other end of the Bowden cable is a lever arranged to apply a tension to the core of the Bowden cable, and thereby to apply to the actuating sleeve and thence to the inner ends of said coil springs a force in a direction tending to increase the diameter of said coil springs.

대표청구항 ▼

1. A motorized vehicle, comprising:at least one steerable wheel; a member mounted rotatably about an axis and operatively connected to the at least one steerable wheel such that rotation of the rotatably mounted member about that axis causes steering of the at least one steerable wheel; a pivot bloc

1. A motorized vehicle, comprising:at least one steerable wheel; a member mounted rotatably about an axis and operatively connected to the at least one steerable wheel such that rotation of the rotatably mounted member about that axis causes steering of the at least one steerable wheel; a pivot block mounted on a free end of said rotatably mounted member; a pair of lubricating plates of low-friction material on either side of said pivot block; a steering member to rotate said rotatably mounted member, comprising a pair of forks straddling said pivot block and bearing on said lubricating plates; a pivot pin passing through the forks and the pivot block transverse to the axis of rotation of said rotatably mounted member, about which the steering member is pivotable relative to the rotatably mounted member; a strut of variable length so connected to the steering member and to said mounting block that pivoting of said steering member relative to said rotatably mounted member requires a change in the length of said strut; and a clamp for locking said strut at any length corresponding to a desired pivotal position of the steering member.