A modular shade includes at least one module that consists of a head rail unit, a foot rail unit, at least one intermediate rail unit, and a plurality of slat components. A top slat may be coupled to the head rail unit and the intermediate rail unit, and a bottom slat component may be coupled to the intermediate rail unit and the foot rail unit. Further, additional intermediate rail units and intermediate slat components may be added to the module to alter the shape and size of the module, and the module may be coupled to one or more additional modules to change the overall shape and size of the modular shade.

A top-down bottom-up window covering includes a first beam and a second beam, which are sequentially provided below a fixture, and a covering material connecting the first beam and the second beam. A first lifting structure is installed in the first beam, and a second lifting structure is installed in the second beam. The first lifting structure is adapted to operate as the first beam is being controlled to move toward or away from the fixture, and the second lifting structure is adapted to operate as the second beam is being controlled to move toward or away from the fixture. Whereby, the top-down bottom-up window covering can be easily assembled and maintained.

A hembar may define a front portion and a rear portion configured to slidably engage each other. The front portion and the rear portion, when slidably engaged, may define a slot configured to receive a piece of fabric. The front portion and the rear portion may be configured to clamp the piece of fabric within the slot. The front portion and the rear portion may be configured such that a width of the slot is adjustable. The front portion may define a first attachment surface and the rear portion may define a second attachment surface. The first attachment surface may define a rib. The second attachment surface may define a groove configured to receive the rib when the front portion is slidably engaged with the rear portion such that the piece of fabric is clamped within the slot.

A hembar may define a front portion and a rear portion configured to slidably engage each other. The front portion and the rear portion, when slidably engaged, may define a slot configured to receive a piece of fabric. The front portion and the rear portion may be configured to clamp the piece of fabric within the slot. The front portion and the rear portion may be configured such that a width of the slot is adjustable. The front portion may define a first attachment surface and the rear portion may define a second attachment surface. The first attachment surface may define a rib. The second attachment surface may define a groove configured to receive the rib when the front portion is slidably engaged with the rear portion such that the piece of fabric is clamped within the slot.

A folding/unfolding device drives a reel shaft to rotate to thereby fold or unfold a shade of a window shade through a string. The folding/unfolding device includes a folding/unfolding unit is mounted to a top frame or a bottom frame of the shade and includes a screw rod on which a first gear is mounted. A second gear is mounted on the reel shaft and directly or indirectly meshes with the first gear. A single direction driving unit is mounted around and movable along the screw rod. When the single direction driving unit moves along the screw rod and towards the first gear, the screw rod is driven to rotate the reel shaft through the first and second gears. When the single direction driving unit moves along the screw rod and away from the first gear, the screw rod is not rotated.

A covering for an architectural-structure covering is disclosed. The covering is formed from a plurality of assembled strips of fabric material joined together. Each assembled strip of fabric material may include a fabric material including inner and outer surfaces, and top and bottom ends. A first slat may be coupled to the inner surface of the fabric material adjacent the top end thereof, the first slat having a first contact surface. A second slat may be coupled to the outer surface of the fabric material adjacent the bottom end thereof, the second slat having a second contact surface. The first contact surface of the first slat of a first assembled strip is preferably nested with the second contact surface of the second slat of an adjoining second assembled strip. The second contact surface of the second slat may be partially covered by the piece of fabric material.

A covering for an architectural-structure covering is disclosed. The covering is formed from a plurality of assembled strips of fabric material joined together. Each assembled strip of fabric material may include a fabric material including inner and outer surfaces, and top and bottom ends. A first slat may be coupled to the inner surface of the fabric material adjacent the top end thereof, the first slat having a first contact surface. A second slat may be coupled to the outer surface of the fabric material adjacent the bottom end thereof, the second slat having a second contact surface. The first contact surface of the first slat of a first assembled strip is preferably nested with the second contact surface of the second slat of an adjoining second assembled strip. The second contact surface of the second slat may be partially covered by the piece of fabric material.

A window blind, wherein each ladder tape thereof includes two longitudinal cords, plural bearers and plural limiting members. The longitudinal cords each have an end connected to a deflecting mechanism disposed on the upper rail. The bearers are disposed between the two longitudinal cords for respectively supporting the slats. The limiting members include a first limiting member and a second limiting member neighboring thereto. The first limiting member has an end disposed on one of the longitudinal cords and includes a first slat-through portion located between two ends thereof passing through a first through hole of a first slat. A first linking loop is formed after the first slat-through portion passes through the first through hole. The second limiting member passes through the first linking loop for keeping the first through hole threaded through by one of the first limiting member and the second limiting member.

A fastening system for a window shade includes a first and a second clipping base, and a first and a second clipping plate. In a first configuration, the first and second clipping bases are attached to each other with each of the first and second clipping plates respectively disposed between and in contact with the first and second clipping bases, whereby a first panel can be held between the first clipping base and the first and second clipping plates and a second panel can be held between the second clipping base and the first and second clipping plates. In a second configuration, the first and second clipping bases are attachable to each other without the first and second clipping plates, whereby a single panel of a window shade can be held between the first and clipping bases.

A fastening system for a window shade includes a first and a second clipping base, and a first and a second clipping plate. In a first configuration, the first and second clipping bases are attached to each other with each of the first and second clipping plates respectively disposed between and in contact with the first and second clipping bases, whereby a first panel can be held between the first clipping base and the first and second clipping plates and a second panel can be held between the second clipping base and the first and second clipping plates. In a second configuration, the first and second clipping bases are attachable to each other without the first and second clipping plates, whereby a single panel of a window shade can be held between the first and clipping bases.