A venetian blind is provided having the usual plurality of slats. Each slat is profiled transversely of its length such that it has a central section and pair of edge sections. The control section is substantially flat and is inclined at an angle to a plane which passes through the outer edges of the edge sections whereby the blind can be completely closed without the necessity of tipping the central sections of the slats as far as in previous constructions.
The lateral chain legs of ladder cords for Venetian blinds in accordance with the invention are formed with regularly spaced openings to allow mounting of the cord. This is made possible by cutting the ladder cord to the desired length and removing the transverse cross connectors at the end portions of the cord, whereupon the cord may be mounted with the aid of the openings in the header and bottom mounting rails of the blind and the ladder cord length can be adjusted to any blind length. When the ladder cord is intended for use with Venetian blinds of standard lengths the chain legs need be provided with mounting openings only at the end portions of the standard length ladder cords.
A horizontal window blind for virtually total blocking the passage of light has a plurality of slats formed from first and second portions parallel to each other. The portions are interconnected by a transition portion, and a flange portion is provided projecting at an obtuse angle from the second portion. At least one opening is made in the flange portion to pass a lifting cord therethrough. The slats are supported by horizontal cords which are attached to a set of vertical cords. A spacing between the horizontal cords is fixed to a distance which permits an outer edge of the first portion to cover the flange portion with the cord passage opening and at least a part of the second portion when the slats are tilted into the vertical position. Because of the shape of the slats and the relative positioning of the slats when tilted into the vertical position, the lifting cord does not find its way between the slats and light is fully blocked by the blind.
A window blind (10) has a headrail (12) housing a tilt assembly (18) and a plurality of slats (14) having opposed external longitudinal edges (36). The blind (10) has a sleeve (28) extending from the tilt assembly (18) to a bottommost slat (14) along the external longitudinal edges (36) of each slat (14). Each slat (14) has a clip (38) that engages the external longitudinal edges (36) of each slat (14). A loop (40) is positioned around the clip (38) and through a pair of openings (48) in the sleeve (28) to connect the sleeve (28) to the each slat (14). A lift cord (30) extends from the headrail (12) to the bottommost slat (14) along the external longitudinal edge (36) of each slat (14) where it is connected to the bottommost slat (14). The lift cord (30) is within the sleeve (28). In another embodiment, a blind (10') utilizes a modified tilt/lift mechanism (16') which comprises a tilt cord (50) which extends from the tilt assembly (18) in the headrail (12) to the bottommost rail adjacent an external longitudinal edge (36) of the slats (14) and a lift cord (30) which extends to the bottommost rail adjacent an external longitudinal edge (36) of the slats (14) and proximate the tilt cord (50). A tilt loop (56) extends from the tilt cord (50) and cooperates with the clip (38) connected to the slats (14) for rotatably opening and closing the plurality of slats (14). A lift cord loop (62) proximate the tilt loop (56) also extends from the tilt cord (50) to contain the lift cord (30).
A window blind (10) is disclosed having a headrail (12) housing a tilt assembly (18) and a plurality of slats (14) having opposed longitudinal edges (36). The blind (10) has a sleeve (28) extending from the tilt assembly (18) to a bottommost slat (14) along the longitudinal edges (36) of each slat (14). Each slat (14) has a clip (38) that engages the longitudinal edges (36) of each slat (14). A loop (40) is positioned around the clip (38) and through a pair of openings (48) in the sleeve (28) to connect the sleeve (28) to the each slat (14). A lift cord (30) extends from the headrail (12) to the bottommost slat (14) along the longitudinal edge (36) of each slat (14) where it is connected to the bottommost slat (14). The lift cord (30) is within the sleeve (28).
A shutter for a skylight or a window comprises a transparent housing and a shutter assembly within the housing. The shutter is formed of louvres comprising light weight S-shaped reinforced foil members pivoted at their ends with light weight pivot pin bearings. A counterbalanced crank arm rotates the louvres by way of one of the pivot bearings.
