Edge seal and rerailer for insulating shade

An insulating window shade assembly adapted to be mounted on the inside of a window comprising

• a shade frame having a pair of opposed vertical side channels open in a direction facing one another and adapted to be mounted on the inside of the window,
• said channels having a pair of parallel side flanges and a back wall connecting the outside edges of the flanges together,
• a pair of parallel, closely spaced, horizontal rollers at the top of the shade frame,
• flexible insulating shade panels having their tops connected to the respective rollers and suspended downwardly in spaced apart relationship off the rollers, the bottoms of the panels being connected together and being weighted to cause the panels to lie in vertical planes,
• and an edge seal disposed in each side channel, each edge seal including
• an outer flexible sheet disposed in and lining its respective channel and having sides lying within the side flanges of the channel,
• and an inner flexible U-shaped sheet secured along its center to the outer flexible sheet with the sides of inner sheet lying against the inner surfaces of the sides of the outside sheet,
• the side edges of the panels lying between the facing surfaces of the inner and outer sheets to form seals about the edges of the panels.

An insulating window shade assembly adapted to be mounted on the inside of a window comprising

• a shade frame having a pair of opposed vertical side channels open in a direction facing one another and adapted to be mounted on the inside of the window, each channel having inner and outer flanges,
• a flexible insulating shade having its ends secured at the top of the shade frame and having spaced apart and parallel insulating shade panels extending downwardly between the side channels, the bottom of the panels being connected together,
• means disposed at the bottoms of the panels weighing down the bottom of the shade to cause the panels to lie in vertical planes,
• and two pair of generally parallel inner and outer, spring-like vertically extending, elongated sheets, one pair of said sheets lying within each of the channels, each pair of sheets having a generally U-shape to conform to the shape of said channel, and having outer edges facing said panels to form U-shaped edge seals, the edges of the two sheets of each pair being disposed within the channels adjacent the channel flanges, the adjacent sides of the edges of each pair of the sheets being biased against one another and defining slits within the channels just inside the flanges, the vertical side edges of the panel extending into the slits to be captured between the two edges of the two sheets to form surface to surface edge seals with the sheets.

An insulating window shade assembly adapted to be mounted on the inside of a window comprising

• a shade frame having a pair of opposed vertical side channels open in a direction facing one another and adapted to be mounted on the inside of the window, each channel having inner and outer flanges,
• a flexible insulating shade having its ends secured at the top of the shade frame and having spaced apart and parallel insulating shade panels extending downwardly between the side channels,
• means disposed at the bottom of the panels weighing down the bottom of the shade to cause the panels to lie in vertical planes,
• two pair of spring-like vertically extending, elongated sheets, each pair of sheets having a generally U-shape to conform to the shape of said channels and having outer edges facing said panels to form U-shaped edge seals, one edge seal lying within each of the channels, the edges of the two sheets of each pair being disposed within the channels adjacent the channel flanges and defining slits within the channels just inside the flanges, the vertical side edges of the panels extending into the slits to be captured between the two edges of the two sheets to form surface to surface edge seals with the sheets,
• rerailing means disposed in the side channels adjacent the tops of the elongated sheets for guiding the edges of the panels into the slits,
• said rerailing means including upwardly and inwardly extending guides at the tops of the sides of the inner sheet of the edge seal,
• and slots cut into the edges of the panels for receiving the guides when the shade is lowered from the top of the shade frame.