A fall arrest device for blocking a rope when a relative speed between the rope and the device reaches a threshold value comprises a blocking mechanism for blocking the rope, and a trigger mechanism configured for triggering an activation lever of the blocking mechanism for activating the blocking mechanism for blocking the rope when the speed reaches the threshold value, wherein the trigger mechanism comprises a drive axis rotated by the rope upon relative movement between the rope and the fall arrest device, the drive axis carrying a centrifugal weight holder, wherein at least one centrifugal weight is held acting against a restoring force of a spring, wherein the at least one centrifugal weight is movable between an inactive position and a trigger position for triggering the activation lever when the speed reaches the threshold value. The centrifugal weight holder is arranged rotatably relative to a release gear that comprises a toothing engagable by an actuator member of the at least one centrifugal weight, when the at least one centrifugal weight is in the trigger position.

A fall arresting device including a device housing, a shaft within the housing, a rotor assembly rotatably connected to the shaft that includes a drum and a disc having at least one region of a ferromagnetic material, an extendable lifeline connected to the drum, a magnetic sensor positioned stationary relative to the device housing and adjacent to the disc, and a that includes a hard-magnetic material. The magnet positioned stationary relative the device housing and the magnetic sensor, where the magnetic sensor is configured to detect a change in a magnetic field produced by the magnet when the disc rotates about the shaft, the change in the magnetic field induced by the at least one region of the ferromagnetic material being brought within close proximity to the magnet as the disc rotates.

A fall arresting device including a device housing, a shaft within the housing, a rotor assembly rotatably connected to the shaft that includes a drum and a disc having at least one region of a ferromagnetic material, an extendable lifeline connected to the drum, a magnetic sensor positioned stationary relative to the device housing and adjacent to the disc, and a that includes a hard-magnetic material. The magnet positioned stationary relative the device housing and the magnetic sensor, where the magnetic sensor is configured to detect a change in a magnetic field produced by the magnet when the disc rotates about the shaft, the change in the magnetic field induced by the at least one region of the ferromagnetic material being brought within close proximity to the magnet as the disc rotates.

A brake plate of a fall arrest system is provided for protecting users during a fall. The brake plate comprises a body having a central opening. The central opening defines an inner circumference of the body. The brake plate comprises a plurality of ratchet gear teeth disposed along the inner circumference of the body. Further, the brake plate comprises at least two slots on the body, wherein the at least two slots are disposed diametrically opposite to each other. Each of the at least two slots is curved and extends along a portion of an outer circumference of the body.

The invention relates to a brake plate for a rope grab for rope climbing, comprising: a first section for supporting a rope on the brake plate, said first section being a first arc of a first circle with a first radius, and a second section for supporting the rope on the brake plate, said second section being arranged adjacently to the first section, wherein the brake plate is characterized in that the second section is a second arc of a second circle with a second radius, and the second radius is larger than the first radius. The invention additionally relates to a rope grab for rope climbing, comprising the brake plate, and to a method for retrofitting a rope grab with the brake plate.

The invention relates to a brake plate for a rope grab for rope climbing, comprising: a first section for supporting a rope on the brake plate, said first section being a first arc of a first circle with a first radius, and a second section for supporting the rope on the brake plate, said second section being arranged adjacently to the first section, wherein the brake plate is characterized in that the second section is a second arc of a second circle with a second radius, and the second radius is larger than the first radius. The invention additionally relates to a rope grab for rope climbing, comprising the brake plate, and to a method for retrofitting a rope grab with the brake plate.

Disclosed is a smart emergency escape backpack, comprising a harness bound to a user and a controlled descent mechanism; wherein the controlled descent mechanism includes an anchor support, a hub mounted on the anchor support, and a centrifugal speed reduction damper fitted with the hub, a cable being wound around the hub; wherein a cable take-up actuating mechanism is further provided on the anchor support, and the cable take-up actuating mechanism includes an electric motor, a transmission structure connected to the electric motor, and a synchronous wheel connected to the transmission mechanism, the synchronous wheel actuating the hub to rotate reversely.

Disclosed is a smart emergency escape backpack, comprising a harness bound to a user and a controlled descent mechanism; wherein the controlled descent mechanism includes an anchor support, a hub mounted on the anchor support, and a centrifugal speed reduction damper fitted with the hub, a cable being wound around the hub; wherein a cable take-up actuating mechanism is further provided on the anchor support, and the cable take-up actuating mechanism includes an electric motor, a transmission structure connected to the electric motor, and a synchronous wheel connected to the transmission mechanism, the synchronous wheel actuating the hub to rotate reversely.

A device, system and method are used for hoisting and lowering a load. The device has a front plate that may be displaced to reveal a sheave. The device also has a friction accessory. The friction accessory is arranged to create friction between a rope and the device when a load is suspended from the device using the rope and where the device is secured to a support structure. The system may be prepared by an operator, having ascended to an elevated location, and further allows the operator to lower the load from the elevated location prior to descending.

A device, system and method are used for hoisting and lowering a load. The device has a front plate that may be displaced to reveal a sheave. The device also has a friction accessory. The friction accessory is arranged to create friction between a rope and the device when a load is suspended from the device using the rope and where the device is secured to a support structure. The system may be prepared by an operator, having ascended to an elevated location, and further allows the operator to lower the load from the elevated location prior to descending.