An operating system for an architectural covering is provided. The operating system allows at least three modes of operation of an architectural covering. A transmission may be included between an input assembly and an output drive member, and the transmission may be selectively engaged to place the operating system into one of the at least three modes of operation. The operating system may include a first drive section including an input, a second drive section including an output, and a control mechanism arranged to selectively lock an element of the first and second drive sections to control movement of the output of the operating system upon actuation of the input. A shift lock is also disclosed herein. In use, the shift lock operates to restrict shifting operation of the operating system from one operating mode to another.

A door curtain anti-dropping falling device for a rolling door is provided. The device comprises a worm connected to the output shaft of the door operator, a drive shaft driving the winding shaft, a worm wheel having plural oblique elongated grooves and fixedly mounted on the drive shaft and meshes with the worm, a driven wheel having plural oblique elongated holes and is driven by the worm to move synchronously with the worm wheel, a limiting disk for restricting the driven wheel from moving axially, and plural latching pins extending through the elongated holes and received in the elongated slots. Under the normal operation of the door operator, the latching pins are retained in the center positions of the elongated holes and grooves. When the worm wheel are excessively worn and dislocated from the driven wheel, the latching pins lock the worm wheel and stop the winding shaft from rotating.

In various example embodiments, a low energy electric motor brake is described comprising one or more electronic switches that connect the input wires to an electric motor together, thus shorting out the motor and braking the motor. The electronic switches are separate from the control system, and provide the braking function. This alleviates the motor controllers and other system control units from providing the braking function to the motor. The electronic switches require minimal to no power in order to maintain the brake to the motor. The control unit may be placed in a low power or sleep mode while the electronic switches maintain the brake.

A door curtain anti-dropping device for a rolling door is provided. The device comprises a worm shaft connected to the output shaft of the door operator, and a drive shaft comprising a limiting disc with through holes. The worm wheel having receiving slots is fixed on the drive shaft to mesh with the worm. The driven wheel is disposed adjacent to the limiting disc. Baffle plates designed to cover the through holes and receiving slots extend from the driven wheel. Plural latching pins stored with spring potential energy are compressed by the baffle plates and retained in the through holes and receiving slots. When the worm wheel is excessively worn and dislocated from the driven wheel, the baffle plates are moved to allow the latching pins to spring out and insert into the notches of the front cover, thereby lock the worm wheel and prevent the winding shaft from rotating.

A door curtain anti-dropping falling device for a rolling door is provided. The device comprises a worm connected to the output shaft of the door operator, a drive shaft driving the winding shaft, a worm wheel having plural oblique elongated grooves and fixedly mounted on the drive shaft and meshes with the worm, a driven wheel having plural oblique elongated holes and is driven by the worm to move synchronously with the worm wheel, a limiting disk for restricting the driven wheel from moving axially, and plural latching pins extending through the elongated holes and received in the elongated slots. Under the normal operation of the door operator, the latching pins are retained in the center positions of the elongated holes and grooves. When the worm wheel are excessively worn and dislocated from the driven wheel, the latching pins lock the worm wheel and stop the winding shaft from rotating.

A speed regulating assembly for coupling to a roller tube for regulating a deployment speed of a covering of an architectural-structure covering is disclosed. The speed regulating assembly may include a detachable adapter for enabling a singular sized speed regulating device to be used regardless of the size of the roller tube. That is, by utilizing a detachable adapter for coupling to the roller tube, any change in the size of the roller tube only requires a different sized adapter. In addition, the speed regulating assembly may be configured so that during covering retraction, the speed regulating assembly is disengaged so that any input rotation from the roller tube is not transmitted to the speed regulating device. However, during covering deployment, the speed regulating assembly is engaged so that any input rotation from the roller tube is transmitted to the speed regulating device thereby regulating the speed of covering deployment.

A lockout tool assembly for locking open a roll-up door that automatically closes without power is provided. A lockout tool assembly may include a lockout tool member, a first lockout plate, and a second lockout plate. The lockout plate may each define a receiving recess, such that when the first lockout plate and the second lockout plate are installed inverse to one another in a closed lockout alignment position, the receiving recesses are complementary in that they form a crossbar restraint receiving aperture. Methods for locking open a roll-up door with such lockout tool assemblies and for removing installed lockout tool assemblies are also provided.

A vehicle cover assembly has a body and a lock device. The body has a housing, a reeling device, and a cover fabric. The reeling device is mounted in the housing and has a reeling axle. The cover fabric is connected with and is selectively reeled around the reeling axle. The lock device has a casing, a pushing rod, and a lock cylinder. The casing is mounted on the housing. The pushing rod is moveably mounted through the casing and has an end selectively engaged with one end of the reeling axle. The lock cylinder is mounted in the casing and is selectively engaged with the pushing rod. When the lock cylinder is engaged with the pushing rod, the pushing rod is engaged with the reeling axle.

In various example embodiments, a low energy electric motor brake is described comprising one or more electronic switches that connect the input wires to an electric motor together, thus shorting out the motor and braking the motor. The electronic switches are separate from the control system, and provide the braking function. This alleviates the motor controllers and other system control units from providing the braking function to the motor. The electronic switches require minimal to no power in order to maintain the brake to the motor. The control unit may be placed in a low power or sleep mode while the electronic switches maintain the brake.

An operating system for an architectural covering is provided. The operating system allows at least three modes of operation of an architectural covering. A transmission may be included between an input assembly and an output drive member, and the transmission may be selectively engaged to place the operating system into one of the at least three modes of operation. The operating system may include a first drive section including an input, a second drive section including an output, and a control mechanism arranged to selectively lock an element of the first and second drive sections to control movement of the output of the operating system upon actuation of the input. A shift lock is also disclosed herein. In use, the shift lock operates to restrict shifting operation of the operating system from one operating mode to another.