A method for controlling a passenger conveyor, which passenger conveyor includes an endless band of conveying elements, the endless band including an inclined conveying section; a drive shaft arranged to drive the endless band of conveying elements when rotated; a motor for rotating the drive shaft; a first sensing arrangement for sensing a rotation speed of the motor; a brake activatable to act directly on the drive shaft or an element fixedly connected to it for stopping rotation of the drive shaft; and a control system. The method includes rotating the drive shaft with the motor; and sensing rotation speed of the motor with the first sensing arrangement. The passenger conveyor includes a second sensing arrangement for sensing rotation speed of the drive shaft, and the method includes sensing rotation speed of the drive shaft with the second sensing arrangement; detecting deviation between the rotation speed of the motor and the rotation speed of the drive shaft or a multifold thereof; and activating the brake for stopping rotation of the drive shaft if deviation, in particular deviation meeting predefined criteria, is detected between the rotation speed of the motor and the rotation speed of the drive shaft or a multifold thereof, wherein said multifold equals to the rotation speed of the drive shaft multiplied with a preset factor n, wherein n preferably equals to transmission ratio between the drive shaft and the motor. A passenger conveyor implementing the method is also disclosed.

Power is recovered from an escalator or a moving walkway as the step orbits an endless track on rollers. A generator is connected to a roller orbiting the track. A battery backup is provided. The power is used for emergency lighting on the step, and for data transmission. Advertising and messages are displayed on a dynamic video screen mounted on the step. The apparatus is mostly contained within the escalator step. Information is communicated wirelessly to a remotely located central control station and back to the step, so as to display information in real time and to update advertising while the escalator is in operation. The central control station also monitors performance parameters. The visual display can include LED lighting.

Power is recovered from an escalator or a moving walkway as the step orbits an endless track on rollers. A generator is connected to a roller orbiting the track. A battery backup is provided. The power is used for emergency lighting on the step, and for data transmission. Advertising and messages are displayed on a dynamic video screen mounted on the step. The apparatus is mostly contained within the escalator step. Information is communicated wirelessly to a remotely located central control station and back to the step, so as to display information in real time and to update advertising while the escalator is in operation. The central control station also monitors performance parameters. The visual display can include LED lighting.

The application relates to a passenger transport apparatus comprising at least one drive sprocket for driving and deflecting a conveyor belt, and at least one detecting apparatus for detecting the rotational speed of the drive sprocket. Slot-shaped recesses are arranged on at least one annular side surface of the drive sprocket, wherein the longitudinal extension of the slot-shaped recesses extends in the radial direction with respect to the rotational center of the drive sprocket over the annular side surface. The detecting apparatus makes it possible to generate a signal that represents the rotational speed of the drive sprocket, by means of scanning of the slot-shaped recesseswhich can move relative to the detecting apparatusand the elevations present between the slot-shaped recesses.

The application relates to a passenger transport apparatus comprising at least one drive sprocket for driving and deflecting a conveyor belt, and at least one detecting apparatus for detecting the rotational speed of the drive sprocket. Slot-shaped recesses are arranged on at least one annular side surface of the drive sprocket, wherein the longitudinal extension of the slot-shaped recesses extends in the radial direction with respect to the rotational center of the drive sprocket over the annular side surface. The detecting apparatus makes it possible to generate a signal that represents the rotational speed of the drive sprocket, by means of scanning of the slot-shaped recesseswhich can move relative to the detecting apparatusand the elevations present between the slot-shaped recesses.

A conveyance belt (12) for a conveyor (1) comprises a plurality of cavities (26a-26c). Each of the cavities (26a-26c) is configured for form-fittingly accommodating a corresponding insert (24a-24f) for connecting the conveyance belt (12) with a conveyance element (20) of the conveyor (1).

Chain tension monitoring device (40) is configured for monitoring a chain tension force (F.sub.C) of a drive chain (27) extending in a longitudinal direction forming closed loop between two sprockets (26, 28). The chain tension monitoring device (40) comprises a sensor device (41) configured for mechanically contacting the drive chain (27), detecting movement of the drive chain (27) transversely, in particular orthogonally, to the longitudinal direction of the drive chain (27), and providing a detection signal indicating the detected movement of the drive chain (27); and an evaluator (50) configured for receiving the detection signal provided by the sensor device (41) and determining a chain tension force (F.sub.C) of the drive chain (27) from said detection signal.

Chain tension monitoring device (40) is configured for monitoring a chain tension force (F.sub.C) of a drive chain (27) extending in a longitudinal direction forming closed loop between two sprockets (26, 28). The chain tension monitoring device (40) comprises a sensor device (41) configured for mechanically contacting the drive chain (27), detecting movement of the drive chain (27) transversely, in particular orthogonally, to the longitudinal direction of the drive chain (27), and providing a detection signal indicating the detected movement of the drive chain (27); and an evaluator (50) configured for receiving the detection signal provided by the sensor device (41) and determining a chain tension force (F.sub.C) of the drive chain (27) from said detection signal.

The invention relates to a people conveyor drive (40) of a people conveyor (1) comprising a plurality of treads (13) interconnected to form an endless tread band (12). The people conveyor drive (40) comprises a tension member drive system (25) configured for driving the endless tread band (12), and a shaft (50) having a shaft main portion (52) and at least one shaft support portion (54). The at least one shaft support portion (54) is supported by at least one shaft bearing (57) to be rotatable around a shaft axis (A). The shaft (50) is configured for engaging with an endless tread drive tension member (15). The shaft (50) has a split shaft configuration in which the shaft main portion (52) is detachably coupled to the at least one shaft support portion (54).

The invention relates to a people conveyor drive (40) of a people conveyor (1) comprising a plurality of treads (13) interconnected to form an endless tread band (12). The people conveyor drive (40) comprises a tension member drive system (25) configured for driving the endless tread band (12), and a shaft (50) having a shaft main portion (52) and at least one shaft support portion (54). The at least one shaft support portion (54) is supported by at least one shaft bearing (57) to be rotatable around a shaft axis (A). The shaft (50) is configured for engaging with an endless tread drive tension member (15). The shaft (50) has a split shaft configuration in which the shaft main portion (52) is detachably coupled to the at least one shaft support portion (54).