A winding device for a roller shade includes a side bracket (1), a self-locking unit (2) and a return wheel module (3). The self-locking unit is mounted in the side bracket and includes at least one support member (21) and at least one stop member (22). The return wheel module is mounted in the side bracket and includes a return wheel (31), a winder wheel (32) and a volute spiral blade spring (33) stretched between the return wheel and the winder wheel. The volute spiral blade spring has a distal end (331) connected to the winder wheel and is provided with a locking portion (332) that is located at the distal end and is movable to lock the at least one stop member.

A winding device for a roller shade includes a side bracket (1), a self-locking unit (2) and a return wheel module (3). The self-locking unit is mounted in the side bracket and includes at least one support member (21) and at least one stop member (22). The return wheel module is mounted in the side bracket and includes a return wheel (31), a winder wheel (32) and a volute spiral blade spring (33) stretched between the return wheel and the winder wheel. The volute spiral blade spring has a distal end (331) connected to the winder wheel and is provided with a locking portion (332) that is located at the distal end and is movable to lock the at least one stop member.

The arrangement for dispensing a curtain using an extendable tube with mating rods and cartridges provides an expedient and convenient method for mounting, changing and removing curtains. It consists primarily of an extendable tube housing a cartridge for dispensing a curtain that is pre-assembled with attached circular balls and a guide piece. The cartridge is attached to mating rods that can be adjusted as needed to attach or remove additional cartridges. The user pulls the guide piece in a downward direction to release the curtain from the release chamber of the extendable tube. The circular balls spread along the sliding tracks of the extendable tube and the user can then spread the curtain as desired.

A dispenser device is generally provided for removable attachment to a flexible enclosure. In one embodiment, the dispenser device comprises a dispenser body which defines a cavity therein and a plurality of barrier sheets within the cavity defined by the dispenser body. The dispenser body is configured to be removably attached over a contact point or surface of the flexible enclosure (e.g., a curtain or the like).

A dispenser device is generally provided for removable attachment to a flexible enclosure. In one embodiment, the dispenser device comprises a dispenser body which defines a cavity therein and a plurality of barrier sheets within the cavity defined by the dispenser body. The dispenser body is configured to be removably attached over a contact point or surface of the flexible enclosure (e.g., a curtain or the like).

A method and apparatus are provided for at least partially environmentally isolating a volume, such as by environmentally isolating the cargo compartment from the passenger compartment of an aircraft. In the context of an apparatus, a barrier curtain is provided that partially defines the volume. The apparatus also includes a cable extending along one or more walls that partially define the volume. The barrier curtain is supported by the cable. The apparatus may also include a cable release mechanism. The cable is held in place by the cable release mechanism and the cable release mechanism is configured to detach the cable at a predetermined load, thereby permitting the barrier curtain to drop in response to a decompression event.

A winding device for a roller shade includes a side bracket (1), a self-locking unit (2) and a return wheel module (3). The self-locking unit is mounted in the side bracket and includes at least one support member (21) and at least one stop member (22). The return wheel module is mounted in the side bracket and includes a return wheel (31), a winder wheel (32) and a volute spiral blade spring (33) stretched between the return wheel and the winder wheel. The volute spiral blade spring has a distal end (331) connected to the winder wheel and is provided with a locking portion (332) that is located at the distal end and is movable to lock the at least one stop member.

Embodiments of motorized window coverings are described herein. Various embodiments may include a shade, a shade deployment assembly, one or more batteries, and wiring. The shade may include an upper end and a lower end opposite the upper end. The shade deployment assembly may be disposed at the upper end and may deploy the shade. The shade deployment assembly may comprise a rotatable element, a motor that rotates the rotatable element, and one or more mounting brackets. The mounting brackets may mount the shade deployment assembly to a surface. The shade may be directly connected to the shade deployment assembly, such as to the rotatable element. The battery may be removably connected to the shade at the lower end. The one or more batteries may power the motor. Wiring may be disposed in the shade. The wiring may electrically couple the motor to the one or more batteries.

In one aspect, a shade assembly may generally include a shade fabric having a front side and a back side. The shade assembly may also include two or more batten spacers, with each batten spacer being coupled to the shade fabric at spaced apart locations along a vertical length of the fabric. Moreover, the batten spacers may be substantially aligned with one another horizontally along the back side of the shade fabric. When the shade fabric is moved to an opened position, the batten spacers may be configured to vertically engage one another to form a vertical spacer stack along the back side of the shade fabric.

The limit switch uses a rolling sprocket mounted on an offset pivot point mounted in a housing in combination with inserts into individual links of the chain. The sprocket engages the chain using spring tension on the pivot point and rolls along the chain as the chain moves with the teeth of the sprocket inserting into the chain link spaces. An insert is attached in a chain link and positioned such that when the curtain reaches the desired terminal position, the inserts are at the point where the sprocket contact the insert. The insert blocks the cog of the sprocket which pushes the sprocket away from the chain and inwardly into the interior of the housing. Inside the housing the limit switch that is activatedeither by contact or other means. The activation of the kill switch stops the motor and thus the movement of the curtains.