| 摘要 |
A sloped transport system in which a step for carrying a large object emerges cyclically without requiring any human operation and in which crew can stand or walk without trouble. With an enlarged step (5), which has a tread surface deep enough to carry a large object (100) such as a wheel chair, located at the center, at least one step (normally 3 steps, 2 steps and 1 step when the tread surface depth is 400 mm, 500 mm and 600 mm respectively) each at the front and rear of the enlarged step (5) is reduced in its tread surface depth to absorb an excessive depth of the enlarged step (5) so that when the steps travel on a horizontal linear track, the tread surfaces of these steps are snugly joined together without any excess or shortage of depth. A step structure for connecting the tread surface and a support roller is provided. An auxiliary wheel (53) to strengthen the support of the enlarged step (5) is installed. The shape of a step guide surface is determined so that interference at the folding-back portion between the steps and the surroundings is avoided. This construction is also applied to a type of system in which the steps are reciprocatingly circulated with the tread surfaces kept horizontal in an entire travel section. The tread surface may be formed with recesses as wheel stoppers in which to receive the ground contact portion of the wheels.
|
