A system for braking an escalator or moving walkway includes a handrail and passenger support in registration with one another so as to move together. A braking tensioner selectively increases tension in the handrail during operation. The increased tension serves to frictionally brake the handrail and hence the passenger support. The braking tensioner may be located in any of various locations depending upon system design, and may be driven in any suitable manner, e.g., hydraulically, electrically, electromagnetically, and so on. Frictional wear on the handrail is reduced by the fact that the described braking system spreads the frictional load over a large area of the handrail, e.g., the many locations where the handrail contacts the underlying support throughout its length.

A system for braking an escalator or moving walkway includes a handrail and passenger support in registration with one another so as to move together. A braking tensioner selectively increases tension in the handrail during operation. The increased tension serves to frictionally brake the handrail and hence the passenger support. The braking tensioner may be located in any of various locations depending upon system design, and may be driven in any suitable manner, e.g., hydraulically, electrically, electromagnetically, and so on. Frictional wear on the handrail is reduced by the fact that the described braking system spreads the frictional load over a large area of the handrail, e.g., the many locations where the handrail contacts the underlying support throughout its length.

A moving handrail monitoring system includes a sensor configured to sense at least part of a moving handrail of the passenger conveying device to acquire a data frame; a processing device configured to analyze and process the data frame to monitor whether a tension degree of the moving handrail is in a normal state, wherein the processing device is configured to include: a target object recognition module configured to recognize, based on a sensed movement and/or position and/or color and/or shape, a moving handrail portion that serves as a target object from the data frame; an object feature extraction module configured to extract a tension degree feature of the moving handrail portion; and a judgment module configured to compare the extracted tension degree feature with a system preset interval, and judge whether a current tension degree of the moving handrail is normal.

A moving handrail monitoring system includes a sensor configured to sense at least part of a moving handrail of the passenger conveying device to acquire a data frame; a processing device configured to analyze and process the data frame to monitor whether a tension degree of the moving handrail is in a normal state, wherein the processing device is configured to include: a target object recognition module configured to recognize, based on a sensed movement and/or position and/or color and/or shape, a moving handrail portion that serves as a target object from the data frame; an object feature extraction module configured to extract a tension degree feature of the moving handrail portion; and a judgment module configured to compare the extracted tension degree feature with a system preset interval, and judge whether a current tension degree of the moving handrail is normal.

A handrail drive for driving a handrail of a transportation system has at least one drive device and at least one counterpressure device. The counterpressure device contains at least one taughtening spring and at least one counterpressure-roller. Between the drive device and the at-least one counterpressure-roller, the handrail is arranged approximately in a linear travel direction and, with a press-on force which is caused by the taughtening spring, is pressed by the at-least one counterpressure-roller against the drive device. The handrail drive has a mechanical redirection device, by which the spring-force of the taughtening spring can be redirected into the press-on force of the at-least one counterpressure-roller.

A handrail drive for driving a handrail of a transportation system has at least one drive device and at least one counterpressure device. The counterpressure device contains at least one taughtening spring and at least one counterpressure-roller. Between the drive device and the at-least one counterpressure-roller, the handrail is arranged approximately in a linear travel direction and, with a press-on force which is caused by the taughtening spring, is pressed by the at-least one counterpressure-roller against the drive device. The handrail drive has a mechanical redirection device, by which the spring-force of the taughtening spring can be redirected into the press-on force of the at-least one counterpressure-roller.

A self-clamping handrail device includes a belt-handrail compound comprising a first belt, a second belt coupled to the first belt, and a handrail coupled to the second belt, a counter bar and a clamping frame configured to support the belt-handrail compound as the belt-handrail compound passes between the counter bar and the clamping frame, the clamping frame configured to move about a clamping curve based on a tension force applied to the handrail, and the first belt and the second belt applying a normal force to the handrail based at least in part on the tension force.

A self-clamping handrail device includes a belt-handrail compound comprising a first belt, a second belt coupled to the first belt, and a handrail coupled to the second belt, a counter bar and a clamping frame configured to support the belt-handrail compound as the belt-handrail compound passes between the counter bar and the clamping frame, the clamping frame configured to move about a clamping curve based on a tension force applied to the handrail, and the first belt and the second belt applying a normal force to the handrail based at least in part on the tension force.

The invention relates to a handrail drive 2 for driving a handrail 3 of a transportation system, which has at least one drive device 4 and at least one counterpressure device 5. The counterpressure device 5 contains at least one taughtening spring 42 and at least one counterpressure-roller 32 to 39. Between the drive device 4 and the at-least one counterpressure-roller 32 to 39, the handrail 3 is arranged approximately in a linear travel direction 29, 30 and, with a press-on force 45 which is caused by the taughtening spring 42, is pressed by the at-least one counterpressure-roller 32 to 39 against the drive device 4. The handrail drive 2 has a mechanical redirection device 80, by means of which the spring-force 44 of the taughtening spring 42 can be redirected into the press-on force 45 of the at-least one counterpressure-roller 32 to 39.

The invention relates to a handrail drive 2 for driving a handrail 3 of a transportation system, which has at least one drive device 4 and at least one counterpressure device 5. The counterpressure device 5 contains at least one taughtening spring 42 and at least one counterpressure-roller 32 to 39. Between the drive device 4 and the at-least one counterpressure-roller 32 to 39, the handrail 3 is arranged approximately in a linear travel direction 29, 30 and, with a press-on force 45 which is caused by the taughtening spring 42, is pressed by the at-least one counterpressure-roller 32 to 39 against the drive device 4. The handrail drive 2 has a mechanical redirection device 80, by means of which the spring-force 44 of the taughtening spring 42 can be redirected into the press-on force 45 of the at-least one counterpressure-roller 32 to 39.