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).

An escalator system wherein when a handrail belt is moving from rotation of a plurality of elevator sheaves: a controller receives data from a plurality of sensors, identifies from the data a first sheave of the plurality of sheaves as comprising reference alignment value for the system, determines for the plurality of sheaves a respective plurality of alignment values, compares the plurality of alignment values with the reference alignment value, and provides a predetermined response when any of the plurality of alignment values diverges from the reference alignment value by more than a predetermined amount.

An escalator system wherein when a handrail belt is moving from rotation of a plurality of elevator sheaves: a controller receives data from a plurality of sensors, identifies from the data a first sheave of the plurality of sheaves as comprising reference alignment value for the system, determines for the plurality of sheaves a respective plurality of alignment values, compares the plurality of alignment values with the reference alignment value, and provides a predetermined response when any of the plurality of alignment values diverges from the reference alignment value by more than a predetermined amount.

The application relates to a handrail-drive system of an escalator. The handrail-drive system includes a handrail drive with drive elements and a belt-form handrail which can be moved in a circulatory manner. The handrail is delimited by an outer contour configured as a gripping surface and by an inner contour which leaves a cavity free in the handrail. The driving force is transmitted from the drive elements to the handrail on two mutually opposite side surfaces of the inner contour, wherein a complementary configuration of the side surfaces makes it possible for all the other forces which are caused by the transmission of the driving force and act between the side surfaces to compensate for one another.

The application relates to a handrail-drive system of an escalator. The handrail-drive system includes a handrail drive with drive elements and a belt-form handrail which can be moved in a circulatory manner. The handrail is delimited by an outer contour configured as a gripping surface and by an inner contour which leaves a cavity free in the handrail. The driving force is transmitted from the drive elements to the handrail on two mutually opposite side surfaces of the inner contour, wherein a complementary configuration of the side surfaces makes it possible for all the other forces which are caused by the transmission of the driving force and act between the side surfaces to compensate for one another.

A security detection device for escalator, comprising a detecting circuit disposed on the inner side of the guardrails and for judging passengers, and the detecting circuit comprises a plurality of transmitting tubes disposed on the inner side of the guardrail, and a plurality of receiving tubes disposed on the inner side of the other guardrail, and the positions of the receiving tubes are one-to-one corresponding to the positions of the transmitting tubes; when light of the transmitting tubes is blocked by the passengers, and the receiving tubes generate an electrical signal, and after being recognized by the matrix recognition circuit, the signal is combined to form an image signal; after the detection interval time, receive a new image signal and compare it with the previous image signal, and when the difference exceeds the setting value, output a control signal to stop the motor, thereby stopping the moving of steps.

Disclosed is an escalator system wherein when a handrail belt is moving from rotation of a plurality of elevator sheaves: a controller receives data from a plurality of sensors, identifies from the data a first sheave of the plurality of sheaves as comprising reference alignment value for the system, determines for the plurality of sheaves a respective plurality of alignment values, compares the plurality of alignment values with the reference alignment value, and provides a predetermined response when any of the plurality of alignment values diverges from the reference alignment value by more than a predetermined amount.

The present disclosure discloses a tension device for a drive chain of a handrail system of an escalator system, a method and an escalator system including the same. The tension device for the drive chain applies pressures in opposite directions to a drive chain so as to make portions of the drive close to each other to tension the drive chain. The pressures are applied to the drive chain via a weight or a pre-loaded spring. The present disclosure also provides a method for tensioning a drive chain. The present disclosure can eliminate loosening of the drive chain after running several months, eliminate periodic heavy work on site for the escalator system and a drive system comprising the drive chain, and improve quality thereof in a simple, reliable and low cost manner.

The present disclosure discloses a tension device for a drive chain of a handrail system of an escalator system, a method and an escalator system including the same. The tension device for the drive chain applies pressures in opposite directions to a drive chain so as to make portions of the drive close to each other to tension the drive chain. The pressures are applied to the drive chain via a weight or a pre-loaded spring. The present disclosure also provides a method for tensioning a drive chain. The present disclosure can eliminate loosening of the drive chain after running several months, eliminate periodic heavy work on site for the escalator system and a drive system comprising the drive chain, and improve quality thereof in a simple, reliable and low cost manner.

A device for driving a handrail of a passenger conveyor includes an endless drive element that is driven by a motor. Support rolls are disposed on the side of the drive element which lies opposite to the handrail, and the drive element is supported on the support rolls by a belt.