ZEDEL

A headband for a protection helmet comprises a strip forming at least a part of a ring around a user's head. An adjustment device adjusts a circumference of the ring. The end of the strip is fixed to an attachment point that is movable with respect to the body of the adjustment device. A rotary actuator is connected to the adjustment device by means of a transmission so that rotation of the rotary actuator results in the attachment point being moved with respect to the body. The transmission comprises a flexible transmission shaft configured to transfer a rotary torque applied on the rotary actuator into a rotary torque applied on the adjustment device to move the attachment point and modify the circumference of the ring. A protection helmet comprises such headband.

An adjustment device of a length of wire element includes a wire element, a body and a clamping element installed able to move between a clamping position and a releasing position of the wire element. The body defines a first aperture and a second aperture designed for the wire element to pass through. The apertures are separated by a bearing wall. The clamping element is installed able to pivot with respect to the body around a pivot shaft to move towards or away from the bearing wall. The clamping element has a support wall moving towards or away from the bearing wall. The two strands passing through a second aperture are separated by the support wall and join one another passing round the pivot axis of the support wall formed by the body.

A roping harness includes a belt, a pair of leg loops and an elastic wire element. The belt has a lining arranged between an outer wall and an inner wall. The elastic wire element is securedly attached to the belt and has one end arranged movably with respect to the belt by elastic deformation. The lining defines a channel receiving a part of the elastic wire element. The outer wall defines a right through hole or a left through hole opening out facing the channel. The elastic wire element passes through the two through holes so that the end of the elastic wire element is located outside the channel.

A rescue device includes a pulley includes a support flange with two rotation shafts mounted salient and extending in a first direction. Two sheaves are mounted rotatable around two rotation shafts to define a running line of a cable. Two flanges are mounted rotatable between a first position and a second position. A first blocker is configured to present a first position blocking the first flange in the closed position and a second position allowing rotation of the first flange. A second blocker is configured to present a first position blocking the second flange in the closed position and a second position allowing rotation of the second flange. The second blocker is independent from the first blocker.