A limit stop assembly for setting a travel limit position of a covering of an architectural-structure covering is disclosed. The limit stop assembly including a first state of operation and a second state of operation. The limit stop assembly being transitioned from the first state of operation to the second state of operation by moving the covering from a first position towards a second position. Transitioning the limit stop assembly from the first state of operation to the second state of operation automatically sets the travel limit of the covering for the second position. In one example of an embodiment, the limit stop assembly includes a screw shaft, a limit nut threadably received on the screw shaft, a hub, and a collar selectively movable between first and second collar positions.

A limit stop assembly for setting a travel limit position of a covering of an architectural-structure covering is disclosed. The limit stop assembly including a first state of operation and a second state of operation. The limit stop assembly being transitioned from the first state of operation to the second state of operation by moving the covering from a first position towards a second position. Transitioning the limit stop assembly from the first state of operation to the second state of operation automatically sets the travel limit of the covering for the second position. In one example of an embodiment, the limit stop assembly includes a screw shaft, a limit nut threadably received on the screw shaft, a hub, and a collar selectively movable between first and second collar positions.

A motorized shade comprising a roller tube, a shade material connected to the roller tube, and a motor drive unit operably connected to the roller tube. The motor drive unit comprises a motor adapted to create torque to rotate the roller tube to lower or raise the shade material and a force sensor positioned at a point along the motor drive unit that resists the torque created by the motor resulting in a reaction force that is detected by the force sensor. The motor drive unit further comprises a motor control module adapted to receive sensor readings from the force sensor and control the motor in response to detecting an abrupt change in the reaction force using the received sensor readings to enable shade control via pulling of the shade material as well as or alternatively obstacle detection to minimize damage to the roller shade and users.

The invention relates to a spring operated roller blind system, wherein the roller blind (1) comprises an adjusting mechanism (30) for adjusting an end position of the flexible sheet member. The adjusting mechanism comprises a spindle (36) and a connecting member (31) that is connected to the roller shaft for rotation around the spindle. The adjusting mechanism further comprises a first bearing (7) for the roller shaft that defines a first end position for the connecting member (31). At least one of the bracket connectors (21) comprises a pin (33) for detachable mounting in a cooperating recess (35) on the adjusting mechanism, wherein the pin and the recess have an unround cross section.

The invention relates to a spring operated roller blind system, wherein the roller blind (1) comprises an adjusting mechanism (30) for adjusting an end position of the flexible sheet member. The adjusting mechanism comprises a spindle (36) and a connecting member (31) that is connected to the roller shaft for rotation around the spindle. The adjusting mechanism further comprises a first bearing (7) for the roller shaft that defines a first end position for the connecting member (31). At least one of the bracket connectors (21) comprises a pin (33) for detachable mounting in a cooperating recess (35) on the adjusting mechanism, wherein the pin and the recess have an unround cross section.

A power transfer device for a fire door operator having a pair of drive gears includes a bridge gear box having a drive shaft suitable for being coupled to an external drive. An idle spur gear is fixed to the drive shaft. A pair of spur gears are coupled to the idle spur gear to rotate in response to rotations of the idle spur gear. Spur gear shafts are coupled to the spur gears and arranged to be coupled to the drive gears of the operator so that rotation of the drive shaft by an external drive is translated to simultaneous rotations of the drive gears of the operator.

A motor drive unit for driving a motor of a motorized window treatment may comprise software-based and hardware-based implementations of a process for detecting and resolving a stall condition in the motor, where the hardware-based implementation is configured to reduce power delivered to the motor if the software-based implementation has not first reduced the power to the motor. A control circuit may detect a stall condition of the motor, and reduce the power delivered to the motor after a first period of time from first detecting the stall condition. The motor drive unit may comprise a stall prevention circuit configured to reduce the power delivered to the motor after a second period of time (e.g., longer than the first period of time) from determining that a rotational sensing circuit is not generating a sensor signal while the control circuit is generating a drive signal to rotate the motor.

A sensing edge is made in segments that can be used to determine at which point along the edge an obstruction occurred. Data collected can be used to determine a point in a process that the fault occurred by addressing each segment individually or as a whole. A programmable controller can be operatively coupled to the sensing edge, and can include logic to control the door and/or other equipment using data collected from the sensing edge.

A sensing edge is made in segments that can be used to determine at which point along the edge an obstruction occurred. Data collected can be used to determine a point in a process that the fault occurred by addressing each segment individually or as a whole. A programmable controller can be operatively coupled to the sensing edge, and can include logic to control the door and/or other equipment using data collected from the sensing edge.

A roller shade assembly includes a roller tube including a first end opposite a second end, the roller tube defining an opening longitudinally extending between the first and second ends, and an idler assembly partially received by the opening at the first end, the idler assembly including an idler housing, a plunger received by the idler housing, and a biasing member configured to apply a biasing force onto the plunger, wherein the plunger is configured to slide relative to the idler housing, and the plunger is configured to selectively engage a bracket member.