Patent ID: 8511455

Claim:
An escalator step comprising: a first surface in a steppable area wherein the first surface comprises a first material having a first controlled coefficient of friction for increasing passenger stability; a bearing structure having: a support surface configured for supporting the first surface; a connecting surface configured for housing first connection means configured for being connected to drive means; drive rollers configured for rolling on a first track defining a path to be followed by the step; support rollers configured for rolling on a second track defining a path to be followed by the step; a second surface in a riser area comprising a second material having a second controlled coefficient of friction for reducing a risk of being trapped between steps in transitions between horizontal movement and inclined plane movement areas wherein relative movement is between steps; a frame of the second surface configured for: supporting the second surface; housing attachment means for attachment to the first surface; wherein: the drive rollers are arranged between the bearing structure and the drive means; the frame houses second connection means configured for being connected to the drive means; the drive rollers are arranged symmetrically with respect to a longitudinal midplane according to a movement direction of the step/pallet; the drive rollers are separated from one another by a width greater than a width of the bearing structure; axes of rotation of the drive rollers are contained in a drive plane parallel to the first surface; the drive plane is in a first lower level contained in the connecting surface; the drive rollers are configured for rotating about a shaft supported by the first connection means.