Within examples, a system is described that includes a control lever for controlling operation of a device, a first actuator coupled to the control lever via a rod, and a resettable frangible link coupling a second actuator to the control lever via the rod. The resettable frangible link enables separation of coupling of the second actuator from the control lever based on an applied force to the rod by the first actuator.

Rudder pedal and brake inceptor devices are described that utilize a straight-line mechanism and rotary joints to achieve straight line motion in a compact volume. The devices can include four or more bar linkages that translate forward motion of a pedal into a rotary motion of a common shaft, such that forward motion of one pedal causes the other pedal to retract while allowing for yaw motion control of the aircraft.

Rudder pedal and brake inceptor devices are described that utilize a straight-line mechanism and rotary joints to achieve straight line motion in a compact volume. The devices can include four or more bar linkages that translate forward motion of a pedal into a rotary motion of a common shaft, such that forward motion of one pedal causes the other pedal to retract while allowing for yaw motion control of the aircraft.

A rotational driving mechanism for driving a rotary member mounted on a rotatable base member includes: a first link unit that has a first link body and is mounted through a first support part on the base member, the first link unit further having an input part to which an output of the linear motion actuator is inputted at one side of the first link body, and an output part located in the first link body at an opposite side of the input part across the first support part; and a second link unit that has a second link body and is mounted through a second support part on the output part of the first link unit, the second link unit being further mounted through a third support unit on the rotary member or a connecting member joined thereto in such a manner as to be free to rotate.

Some embodiments provide a motion control system controlling an image projected from an underwater projection system in a water feature, pool, or spa. The system includes a rotatable base and a mirror support member hingedly coupled to the rotatable base. A first motor is coupled to the rotatable base and is configured to rotate the mirror support member in a first plane. A second motor is coupled to the rotatable base and a fixed mount, wherein the second motor is configured to rotate the rotatable base relative to the fixed mount thereby rotating the mirror support member in a second plane.

Some embodiments provide a motion control system controlling an image projected from an underwater projection system in a water feature, pool, or spa. The system includes a rotatable base and a mirror support member hingedly coupled to the rotatable base. A first motor is coupled to the rotatable base and is configured to rotate the mirror support member in a first plane. A second motor is coupled to the rotatable base and a fixed mount, wherein the second motor is configured to rotate the rotatable base relative to the fixed mount thereby rotating the mirror support member in a second plane.

There is provided a hand operable device for handicapped persons driving a car. More particularly, there is provided a hand operated device for actuating vehicle acceleration and brake pedals. The device includes a brake bar having in a first end attaching means for attachment to a brake pedal of the vehicle, said brake bar having in a second end a joint to a handle bar for transversely supporting the brake bar. The handle bar is provided with means for electronically regulating the speed of the vehicle and attachment means for releasably attaching the handle bar via a mounting piece to (or near) the steering column without the use of tools.

A winch assembly includes a first bracket configured to be positioned at a first lateral side of a vehicle, a second bracket configured to be positioned at a second lateral side of the vehicle, a first actuator and a second actuator configured to be coupled to a winch free spool device, a first bushing coupled to the first actuator, a second bushing coupled to the second actuator, and a lever arm coupled to both the first actuator and the second actuator and configured to interface with the winch free spool device. The first actuator and the second actuator are moveable to position the first bushing into engagement with the first bracket or position the second bushing into engagement with the second bracket to selectively lock the winch free spool device in an engaged position.

A winch assembly includes a first bracket configured to be positioned at a first lateral side of a vehicle, a second bracket configured to be positioned at a second lateral side of the vehicle, a first actuator and a second actuator configured to be coupled to a winch free spool device, a first bushing coupled to the first actuator, a second bushing coupled to the second actuator, and a lever arm coupled to both the first actuator and the second actuator and configured to interface with the winch free spool device. The first actuator and the second actuator are moveable to position the first bushing into engagement with the first bracket or position the second bushing into engagement with the second bracket to selectively lock the winch free spool device in an engaged position.

A bicycle operation device includes a clamp and an operation unit. The clamp is attachable to a handlebar of a bicycle. The operation unit includes a wireless communicator configured to communicate with a bicycle component and an electric switch configured to transmit a signal to the wireless communicator. The operation unit is attachable to the clamp in a manner allowing for adjustment of the position of the operation unit relative to the clamp.