An apparatus for transfer of a torque from an internal combustion engine to an auxiliary unit has an auxiliary unit shaft and a pulley rotatably disposed on the auxiliary unit housing. The pulley and the auxiliary unit shaft are connected with one another by an overload protection device configured to interrupt the connection between the pulley and the auxiliary unit shaft if a predetermined torque is exceeded. The overload protection device has a spring washer having multiple spring arms connected, on the end side, with connection elements of a disk-shaped driver until the predetermined torque is reached. Each connection element is configured as a pocket-shaped mounting in the driver, wherein the respective spring arm end lies against a contact surface of the pocket-shaped mounting under spring tension, with force fit. The respective pocket-shaped mounting is configured as a hook-shaped crosspiece cut out of the driver in certain regions.

A drilling device, which is adjustable at least between a clamping configuration, a drilling configuration and a screwing configuration, includes a machine housing and a machine spindle, which is drivable with the aid of a motor. A drill chuck having a jaw holder, in which clamping jaws are guided, which are adjustable with the aid of a threaded connection provided between an entrainer and a threaded sleeve is provided. A drill spindle, which is drivable by the motor via a planetary gear set, is disposed on the side facing the machine spindle and includes a sun wheel, a planet carrier, which carries at least one planet wheel, and a ring wheel, which has at least one cam, which interacts with at least one clutch element, which is fixed with respect to the ring gear in the drilling configuration. The at least one clutch element is supported with respect to the ring wheel, movable against a clamping spring force of a clamping spring, and the at least one clutch element is movably supported against a screw spring force, in the screwing configuration, the screw spring force resulting from a series connection of the clamping spring and a screw spring.

A torque limiter assembly is disclosed comprising a housing having at least one first engagement member, an input shaft that is rotatable relative to the housing and having at least one second engagement member; and an electromagnet. The electromagnet 10 is arranged and configured such that when activated it generates a magnetic field that moves the at least one first engagement member relative to the at least one second engagement member, such that the first and second engagement members engage each other and stop or inhibit rotation of the input shaft relative to the housing.

This application describes clutch mechanisms for use in a steering control system, e.g., a steering control system used to steer a trolling motor for a boat. Such clutch mechanisms can reduce and avoid damage to the steering control system (e.g., a steering motor) when the system is subjected to unusually large impact loads (e.g., when the trolling motor or boat contacts an obstruction). The clutches described in this application can be used to decouple the steering control system from a steering shaft (or other drive mechanism) upon application of a large impact load, thus reducing damage to and increasing the lifespan of such system. In some cases, the clutch is a ball and spring mechanism. In other cases, the clutch is a slip tooth mechanism.

A torque limiting device is disclosed, comprising a hollow body with an open proximal end and open distal end forming a handle, an internal wall bisecting said hollow body into a first and a second section on one side having torque limiting movable ramps, a rotatable head section affixed movably to the internal wall with bumps extended from the backside thereof, and a tool mounted to the front side whereby when rotated in a torque limiting direction, the at least one bump stop will pass over the ramp and the application of sufficient torque requirement of said device will depress the ramp, and allow the bump stop to pass over.

An overload clutch comprising an input flange and an output flange, said clutch being configured to transmit torque between the input flange and the output flange and to disengage the clutch when the torque exceeds a predetermined threshold, characterised in, that the clutch comprises one or more sensing means at least partially integrated in at least one of the input and output flanges, and that the one or more sensing means are adapted to jointly determine the torque applied to transmitted between the input flange and the output flange of the clutch and to detect the disengagement of the clutch. A device comprising the clutch, a gear unit connected to the input flange, and a motor connected to the gear unit, configured to provide torque to the input flange through the gear unit.

An electric actuator for use with a drive apparatus is disclosed herein. The electric actuator has a rotary design incorporating a position sensor disposed to engage the end of a control shaft. An electric motor drives a reduction gear train to position the control shaft, the reduction gear train having a worm drive that motivates a spur gear reduction. A slip clutch is disposed between the worm drive and spur gear reduction to protect the components of the reduction gear train, and to also place a limit on the torque applied to the control shaft. The housing of the electric actuator features a motor chamber to accommodate the electric motor and is sealed by a cap having an electric connector. The actuator gears may be integrated in a common sump with the drive apparatus.

An overload clutch comprising an input flange and an output flange, said clutch being configured to transmit torque between the input flange and the output flange and to disengage the clutch when the torque exceeds a predetermined threshold, characterised in, that the clutch comprises one or more sensing means at least partially integrated in at least one of the input and output flanges, and that the one or more sensing means are adapted to jointly determine the torque applied to transmitted between the input flange and the output flange of the clutch and to detect the disengagement of the clutch. A device comprising the clutch, a gear unit connected to the input flange, and a motor connected to the gear unit, configured to provide torque to the input flange through the gear unit.

An auto-engageable coupling is disclosed for use in a pumping system that includes an electric motor and a pump driven by the electric motor. The auto-engageable coupling permits the transfer of torque from the motor to the pump but prevents the pump from applying torque to the motor. In some embodiments, the auto-engageable coupling includes a drive cup connected to a motor shaft driven by the motor, an output cup connected to an output shaft, and a drive bearing clutch connected between the drive cup and the output cup. The drive bearing clutch is configured to lock the drive cup and the output cup together when the motor shaft is driven in an intended direction. The auto-engageable coupling optionally includes a brake bearing clutch configured to resist the rotation of the output shaft in an unintended direction.

An auto-engageable coupling is disclosed for use in a pumping system that includes an electric motor and a pump driven by the electric motor. The auto-engageable coupling permits the transfer of torque from the motor to the pump, but prevents the pump from applying torque to the motor. In some embodiments, the auto-engageable coupling includes a drive plate connected to a motor shaft and a reaction plate connected to an output shaft. The drive plate and reaction plate are only coupled together to transmit torque from the motor to the pump when the motor is activated and rotating in a first, intended direction. When the motor is not activated and the pump is forced to rotate in a first direction, the drive plate and the reaction plate are disengaged to prevent the delivery of torque from the pump to the motor.