| 摘要 |
A vertical stem of a scooter has an upper stem portion hinged to a lower stem portion. A flat hinge plate is pivoted on the lower stem portion and is received in a slot at the lower end of the upper stem portion. A hinge cover sleeve has three positions: one maintaining the vehicle stem erect; a second permitting the upper stem portion to be folded to a horizontal position; and a third permitting the hinge assembly to be disassembled. The three positions are established by two detent buttons. The hinge cover sleeve may be threaded tightly onto a hinge base on the lower stem portion to eliminate rattles. When the hinge plate is slid into the slot, an alignment and stop pin projecting from the hinge plate maintains proper alignment of the hinge plate and limits the distance the hinge plate slides into the slot.
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