Patent ID: 6591959
Filing Date: 2003-07-15
Classification: B66B

Abstract:
An escalator with a high speed inclined section, comprising:a plurality of steps, each step having a tread for carrying a passenger, a riser at a lower-step-side end of the tread, a step link roller shaft, and a step link roller rotatable around the step link roller shaft, the steps being connected together in an endless fashion for circulation; a main track which forms a loop track including an upper landing section, a lower landing section, and an intermediate inclined section situated between the upper landing section and the lower landing section and which guides the step link roller; and step speed changing means which varies distance between adjacent steps to vary moving speed of the steps so that a speed change ratio of the moving speed of the steps in the intermediate inclined section to the moving speed in the upper and lower landing sections is fixed, wherein, assuming that an upper-step-side end of the tread of a step is an origin of a coordinate system when the step is seen from a side with the tread being horizontal and on the upper side, the riser passes a point having horizontal and vertical coordinates expressed as (kr cos &agr;m, âˆ’kr sin &agr;m) where k is the speed change ratio,r is distance between the step link roller shafts of adjacent steps in the upper and lower landing sections, and &agr;m is inclination angle of the intermediate inclined section.