A linear powered input device that utilizes linear input from a user and converts the linear input rotational energy to perform work. The linear input is generated by lever arms having a slotted attachment at a pivot point that allows a free end of the lever arms to move linearly rather than in an arcuate path. The lever arms are connected to a power transmission mechanism that wraps around one or more drive wheels having one-way bearings mounted on one or more output shafts. The output shafts can be connected to any type of auxiliary device to perform the desired work. Output wheels may be mounted on the output shafts and operatively connected by a transmission link that allows linear motion of any lever arm in any allowable direction to cause the output shaft to rotate in the same rotational direction so as to receive continuous input.

A motor driven system for raising and lowering a window covering executes motor ramp trajectory speed control. The motor ramp trajectory limits acceleration of an external motor from the idle (stationary) state to full operating speed, and limits deceleration of the motor from full operating speed back to the idle state. This function reduces stresses on a continuous cord loop drive mechanism. A control system manages solar heating effects in response to sunlight entrance conditions such as system sensor outputs, external weather forecasts, and other data sources. The system automatically opens or close the window covering to increase or decrease admitted sunlight under appropriate conditions. The input interface of the control system includes a visual display and input axis, which are aligned vertically if the window covering mechanism raises and lowers the window covering, and are aligned horizontally if the window covering mechanism laterally opens and closes the window covering.

A motorized module for a modular robotic structure comprises a housing, a first wheel, a second wheel, an elongated structure mounted to the first and second wheels and configured to rotate the first and second wheels. A driver is mounted to the housing between the first and second wheels. A leadscrew is mounted to the housing between the first and second wheels. A transmission drivingly connecting the driver to the leadscrew. A connector is coupled to the leadscrew and configured to move longitudinally along the second longitudinal axis in response to a rotation of the leadscrew, the connector being attached to the elongated structure.

A motorized module for a modular robotic structure comprises a housing, a first wheel, a second wheel, an elongated structure mounted to the first and second wheels and configured to rotate the first and second wheels. A driver is mounted to the housing between the first and second wheels. A leadscrew is mounted to the housing between the first and second wheels. A transmission drivingly connecting the driver to the leadscrew. A connector is coupled to the leadscrew and configured to move longitudinally along the second longitudinal axis in response to a rotation of the leadscrew, the connector being attached to the elongated structure.

The invention is a corner rack with one front face that has teeth. A corner rack is a linear gear interface that can be placed in corners, such that the teeth face out from the corner at an angle, rather than running parallel with the walls. The teeth of the corner rack have a profile that can engage with the profile of a silent chain. The combination of the corner rack and silent chain allows an attached motor to be distanced from the corner rack, so that a lifting device driven by the corner rack and silent chain can be placed in and utilized in corners. This leads to increased versatility and efficiency.

The system of the preferred embodiments is a transmission including: at least two axle segments; at least one crank arm attached at one end to each axle segment, wherein the space between the at least two crank arms has a gap between the at least two axle segments; a connecting rod; a connecting axle rotatably connected to one end of the connecting rod, wherein the connecting axle is attached at either end to the at least two crank arms; an actuator adapted to move the attachment point between the connecting axle and the at least two crank arms up and down the length of the at least two crank arms; at least one of a wheel and a crank arm with a pivot axle connected at least one of near the periphery of the wheel and near the end of the crank arm, wherein the distal end of the connecting rod is rotatably connected to the pivot axle; a one way clutch connected to the wheel and connected to a rear axle; a drive gear connected to the rear axle and adapted to output drive power. The transmission of the first preferred embodiments is preferably designed to provide a compact transmission that does not use a derailleur and limits or does not use a chain at all, while being suitable for use on human powered vehicles like bicycles and having the potential in some variations of providing continuous variability in ratio of input axle rotation to output axle rotation. The system of the preferred embodiments may, however, be used for any suitable purpose.

A sliding device is capable of decreasing a moving distance of a middle rail while maintaining a maximum moving distance of a movable rail. The sliding device includes a fixed rail fixed to a body into which a storage body is inserted, the movable rail fixed to the storage body, the middle rail installed between the movable rail and the fixed rail and configured to move relatively with respect to the movable rail and the fixed rail, and a driving part configured to move the middle rail so as to move the movable rail by a distance twice a moving distance of the middle rail.

A robotic arm assembly having an arm with at least one end effector pivotally connected to the end of the arm. The robotic arm assembly has a continuous belt driven by two motors. Manipulation of the speed and direction of the two motors controls the length of the arm and the tilt of the end effector. A third motor controls the tilt of the arm.

A motor driven system for raising and lowering a window covering executes motor ramp trajectory speed control. The motor ramp trajectory limits acceleration of an external motor from the idle (stationary) state to full operating speed, and limits deceleration of the motor from full operating speed back to the idle state. This function reduces stresses on a continuous cord loop drive mechanism. A control system manages solar heating effects in response to sunlight entrance conditions such as system sensor outputs, external weather forecasts, and other data sources. The system automatically opens or close the window covering to increase or decrease admitted sunlight under appropriate conditions. The input interface of the control system includes a visual display and input axis, which are aligned vertically if the window covering mechanism raises and lowers the window covering, and are aligned horizontally if the window covering mechanism laterally opens and closes the window covering.

This invention provides a reciprocating linear prime mover, comprising a first roller, disposed on a first driving axis along with a second axis; a second roller, disposed on a second driving axis along with the second axis; a closed first linear driving element winded on and between the first roller and the second roller, comprising a first linear part and a second linear part between the first roller and the second roller, wherein the second linear part is above the first linear part along a (+) third axis; a first part disposed between the first roller and the second roller, wherein the first part is reciprocatingly moved along with the first axis, and the first part comprises a first one-way clutch nearby the inner side of the first linear part and contacting therewith, and a second one-way clutch nearby the inner side of the second linear part and contacting therewith.