A frame assembly for windows and doors includes a pair of side members and a pair of generally parallel cross members, each extending along a unique member axis. The cross members include a first frame portion and a second frame portion that extend generally along the member axis and are connected by a camming fastener that draws together and secures the first and second frame portions. A method of fabricating a shutter assembly includes forming a pair of C-shaped partial-frames, each from a side member coupled to portions of two cross-members. The method includes co-axially aligning corresponding portions of the two cross-members along two axes and joining the two C-shaped partial-frames with camming fasteners.

A driving assembly for window blinds includes a mounting plate, a winding roller and driving wheels that are engaged with one another, at least one first guiding roller, and at least one second guiding roller. An elastic element is elastically wound around the driving wheels, a pull rope has a starting end fixed to the winding roller and is divided into at least two sections, under a first status, the pull rope partially winds around the winding roller then winds around the second guiding roller and the first guiding roller in turns along outer edges of the second and the first guiding rollers; while under a second status, the pull rope disengages from the winding roller, the second guiding roller and the first guiding roller in turns. The driving assembly has simple structure and convenient assembly, and brings effortless and quick operation to pull or lift the window blind.

A driving assembly for window blinds includes a mounting plate, a winding roller and driving wheels that are engaged with one another, at least one first guiding roller, and at least one second guiding roller. An elastic element is elastically wound around the driving wheels, a pull rope has a starting end fixed to the winding roller and is divided into at least two sections, under a first status, the pull rope partially winds around the winding roller then winds around the second guiding roller and the first guiding roller in turns along outer edges of the second and the first guiding rollers; while under a second status, the pull rope disengages from the winding roller, the second guiding roller and the first guiding roller in turns. The driving assembly has simple structure and convenient assembly, and brings effortless and quick operation to pull or lift the window blind.

The invention discloses an unidirectionally swinging linkage shutter, a roof with the shutter and a louver blade. The shutter includes a frame and a louver blade, the frame includes a longitudinal keel, the longitudinal keel includes longitudinal keel body and a positioning bar, a pin hole is defined on the positioning bar and beyond the wall, one end of the louver blade close to the indoor is hinged on the pin hole via a pin shaft, the louver blade includes a protruding section protruding outward, a linkage connection position is defined on the protruding section. The roof with the shutter includes a transverse roof beam, a longitudinal roof beam and a louver blade, the longitudinal keel includes a longitudinal keel body and a positioning bar, the positioning bar is provided with a pin hole. The structure of the louver blade is the same as above. In the present invention, the linkage bar will not interfere after the louver blades are closed, and the sealing performance is good, and the water and wind shielding effects of the louver blades are good; it is convenient to install and disassemble the louver blades on site, and can avoid the arbitrary removal of the louver blades from the outside.

A louvre shutter comprising louvres 20 rotatably mounted in a frame on louvre axles, and a louvre drive system that, in summary, comprises a rack and pinion gear system including an externally operable rack assembly and a set of pinion gears 28 mounted to the louvre axles. The rack is externally operable rack and is reciprocably mounted in the drive system housing 42, 48. The pinion gears 28 mounted to the louvre axles are engaged with the rack such that reciprocation of the rack rotates the louvre 20 relative to the frame.

A louvre shutter comprising louvres 20 rotatably mounted in a frame on louvre axles, and a louvre drive system that, in summary, comprises a rack and pinion gear system including an externally operable rack assembly and a set of pinion gears 28 mounted to the louvre axles. The rack is externally operable rack and is reciprocably mounted in the drive system housing 42, 48. The pinion gears 28 mounted to the louvre axles are engaged with the rack such that reciprocation of the rack rotates the louvre 20 relative to the frame.

Embodiments of the present invention relates to a window system that a solar panel provided in the project window is easily detachable, and more particularly, a project type window system according to present invention includes a window frame; a project frame with an upper end hinged to an upper end of the window frame configured to be opened and closed in a project type while moving away or close with respect to the window frame; a louver frame provided inside the project frame; and a solar panel including a solar cell and a photovoltaic frame to support the solar cell; wherein the louver frame includes a supporting plate with a tilt hole elongated in a height direction of the project frame, a panel holder for fixing and holding the solar panel inside of the supporting plate by including a tilt shaft on an opposite side to which the solar panel is held and inserting the tilt shaft into the tilt hole, and a socket for tiltably supporting the solar panel with respect to the louver frame from an outside of the supporting plate by being coupled to the tilt shaft, wherein the photovoltaic frame is slide-inserted through an opened one end of the panel holder, and is supported by the other end of the panel holder, and wherein the photovoltaic frame is coupled to the panel holder in the other end of the panel holder.

A solar powered smart window includes a light diffuser configured to convert an incident direct solar radiation to a diffusive light toward interior direction, a light diffuser positioner, a driving mechanism, a solar panel, and a control unit. The control unit moved the light diffuser from a predetermined opened position to a closed position and to hold the light diffuser at the closed position with latch mechanism, when the output power of the solar panel exceeds a threshold for over a duration time. The controller releases the latch mechanism and to cause the light diffuser to return to the predetermined opened position when the output power lowers below threshold for over the duration time. A method includes storing a predetermined condition, monitoring the output power, comparing the output power with the predetermined conditions, making decision whether a positional transition is necessary, and causing the transitional transition or maintaining current position.

A solar powered smart window includes a light diffuser configured to convert an incident direct solar radiation to a diffusive light toward interior direction, a light diffuser positioner, a driving mechanism, a solar panel, and a control unit. The control unit moved the light diffuser from a predetermined opened position to a closed position and to hold the light diffuser at the closed position with latch mechanism, when the output power of the solar panel exceeds a threshold for over a duration time. The controller releases the latch mechanism and to cause the light diffuser to return to the predetermined opened position when the output power lowers below threshold for over the duration time. A method includes storing a predetermined condition, monitoring the output power, comparing the output power with the predetermined conditions, making decision whether a positional transition is necessary, and causing the transitional transition or maintaining current position.

A system of blinds comprising louvers that are inclined in such a way as to maximize the direct solar illumination received during the winter months and to minimize same during the summer months is described. The inclinations are determined according to the terrestrial latitude of the building supporting these blinds, and the orientation of the surface of the building that is to be protected. The longitudinal slope of the louvers is determined such that the longitudinal direction of the louvers is substantially parallel to the straight line of intersection of the plane of the surface and the equatorial plane seen from the building. The transverse tilt of the louvers is determined such that these louvers face in a direction comprised between 12° and 24° below the direction of the equatorial plane.