Abstract: The invention relates to a climbing aid for ladders or the like, comprising an endless traction means running between guide pulleys, from which a person may optionally hang by means of a suspension device, with a drive device (20) comprising a drive motor (21), by means of which one of the guide pulleys may be driven as the drive disc (12) for the drive means (13), with a traction force limitation device and with a device for switching the drive device on/off, which can be actuated by the endless traction means (13).

Abstract: The invention relates to a traction sheave hoist for a platform operated by at least two ropes 5, having a traction sheave 13 that can be driven by a motor, at least a first rope groove and a second rope groove 17 being formed around the traction sheave circumference, and a first hold-down system for the first rope groove and a second hold-down system 20 for the second rope groove 17 with which the ropes wrapping around the traction sheave 13 are pressed into the corresponding rope grooves 17 during operation. In order to be able to ensure the horizontal alignment of the platform at all times, an adjustment device 30 is assigned to at least one of the hold-down systems 20 with which the position or engagement depth of the rope 5 in the rope groove 17 achieved with the corresponding hold-down system 20 can be controllably varied.

Abstract: The invention relates to a climbing aid for ladders or the like, comprising an endless traction means running between guide pulleys, from which a person may optionally hang by means of a suspension device, with a drive device (20) comprising a drive motor (21), by means of which one of the guide pulleys may be driven as the drive disc (12) for the drive means (13), with a traction force limitation device and with a device for switching the drive device on/off, which can be actuated by the endless traction means (13).

Abstract: The invention relates to a traction sheave hoist for a platform operated by at least two ropes 5, having a traction sheave 13 that can be driven by a motor, at least a first rope groove and a second rope groove 17 being formed around the traction sheave-circumference, and a first hold-down system for the first rope groove and a second hold-down system 20 for the second rope groove 17 with which the ropes wrapping around the traction sheave 13 are pressed into the corresponding rope grooves 17 during operation. In order to be able to ensure the horizontal alignment of the platform at all times, an adjustment device 30 is assigned to at least one of the hold-down systems 20 with which the position or engagement depth of the rope 5 in the rope groove 17 achieved with the corresponding hold-down system 20 can be controllably varied.