A planetary gear system with a sun gear, a ring gear co-axial with the sun gear, at least one planetary gear meshing with both the sun gear and the ring gear, and a planetary gear carrier which rotationally supports the at least one planetary gear. A torque clutch is supported by and connected directly between two of the sun gear, the ring gear, the at least one planetary gear and the planetary gear carrier. The torque clutch prevents relative rotation when an acting torque is below a predetermined torque value and allows relative rotation when the acting torque is above the predetermined torque value. A torque threshold adjustment mechanism is provided for adjusting the predetermined value of the torque at which the torque clutch slips.

Torque limiters prevent the transmission of excessive torque between moving components of one or more gears in a tracker drive assembly. When an amount of torque between these moving components exceeds a threshold, the torque limiter may slip, thus allowing the components to move relative to each other. Embodiments disclosed herein may include a drive motor configured to rotate a drive shaft, at least one gear configured to translate rotation of the drive shaft into rotation of a PV module mounting structure, and a torque limiter interposed between an interior surface of a first component of the at least one gear and an exterior surface of a second component of the at least one gear to allow the first component to slip relative to the second component when an amount of torque between the first and second components exceeds a threshold.

A self-retracting lifeline including a housing, a drum mounted for rotation in the housing, a lifeline wrapped around the drum and extending from the housing, and a rotary energy absorber unit including at least one mount adapted for selective rotation in the housing, and an energy absorber adapted to absorb energy in response to the mount rotating relative to the housing.

A dynamic vibration absorber is configured to be attached to a rotary member. The dynamic vibration absorber includes a base member, a mass body, and a torque limiting part. The base member is rotatably disposed. The mass body is attached to the base member so as to be rotatable relatively thereto. The torque limiting part limits transmission of a torque to be inputted into the base member from the rotary member.

A dynamic vibration absorber is configured to be attached to a rotary member. The dynamic vibration absorber includes a base member, a mass body, and a torque limiting part. The base member is rotatably disposed. The mass body is attached to the base member so as to be rotatable relatively thereto. The torque limiting part limits transmission of a torque to be inputted into the base member from the rotary member.

An overload protection device for cable lines, and in particular in cranes, is provided, having at least one electronic overload safety means. The overload protection device is provided to prevent any kind of damage which can be caused by an overload. That is achieved by providing a mechanical or magnetic overload protection device (1) in addition to the electronic overload safety means. The overload protection device (1) is integrated into the cable line or arranged at the cable fixing point and responds when a permissible cable tension force is exceeded and implements a cable extension.

An overload protection device for cable lines, and in particular in cranes, is provided, having at least one electronic overload safety means. The overload protection device is provided to prevent any kind of damage which can be caused by an overload. That is achieved by providing a mechanical or magnetic overload protection device (1) in addition to the electronic overload safety means. The overload protection device (1) is integrated into the cable line or arranged at the cable fixing point and responds when a permissible cable tension force is exceeded and implements a cable extension.

This torque transmission mechanism (1) includes a transmission mechanism portion (2) that includes an input shaft (21), an output shaft (22), and an intermediate portion (23) including a connection portion (23b). The torque transmission mechanism includes a limiting mechanism portion (3) that is capable of switching between a connection state where the limiting mechanism portion is connected to the connection portion and limits rotation of the intermediate portion and a disconnection state where the limiting mechanism portion is disconnected from the connection portion and allows the rotation of the intermediate portion, and switches to the disconnection state when torque of at least a predetermined value acts in the connection state.

This torque transmission mechanism (1) includes a transmission mechanism portion (2) that includes an input shaft (21), an output shaft (22), and an intermediate portion (23) including a connection portion (23b). The torque transmission mechanism includes a limiting mechanism portion (3) that is capable of switching between a connection state where the limiting mechanism portion is connected to the connection portion and limits rotation of the intermediate portion and a disconnection state where the limiting mechanism portion is disconnected from the connection portion and allows the rotation of the intermediate portion, and switches to the disconnection state when torque of at least a predetermined value acts in the connection state.

An electromechanical strut is provided for moving a pivotal closure member between an open position and a closed position relative to a motor vehicle body. The electromechanical strut includes a housing connected to one of the closure member and the motor vehicle body. An extensible shaft is connected to the other of the closure member and the motor vehicle body for slidable movement relative to the housing. A motor-gear assembly operably drives a rotatable power screw. A drive mechanism converts rotary motion of the power screw into linear motion of the extensible shaft to move the extensible shaft between a retracted position corresponding to the closed position of the closure member and an extended position corresponding to the open position of the closure member. A clutch/coupling assembly is operably disposed between the motor-gear assembly and the power screw and integrates a slip clutch device and a flexible coupling into a common unit.