초록 ▼

Movable insulation is provided with sealing structural components to minimize or eliminate for practical purposes infiltration and convection currents in and around the movable insulation to enhance the thermal insulating quality of the assembly. Seal strips on the edges of the insulation pocket for

Movable insulation is provided with sealing structural components to minimize or eliminate for practical purposes infiltration and convection currents in and around the movable insulation to enhance the thermal insulating quality of the assembly. Seal strips on the edges of the insulation pocket forming material layers are adapted to slidingly engage seal guides provided in the side frame channels of the assembly to seal the sides. Weight bars in the lower extremities of the insulation forming material sheets enhance the seal on the bottom as well as to keep the layers of material separated, and rotatable separating rollers on top also help to keep the layers separated and to form a seal on top. A smooth operating manual chain drive and anchor mechanism is provided, as well as a removable decorative fabric for the front of the assembly. Alternative embodiments enhance the seals and insulating quality of larger movable insulation assemblies, including top seal guide extensions for separating the layers, a bottom curved seal guide for accommodating the lower ends of edge seal strips to prevent binding and loss of bottom seal by accommodating differential length movement of front and rear layers, and edge seals for inner layers adopted for sealing edges as well as for maintaining layers separate in non-vertical applications.

대표청구항 ▼

In movable insulation having three layers of material forming air pockets therebetween and motion producing means connected to said layers for moving the insulation over an area to be covered and retracting the insulation away from said area, the improvement comprising: side seal means located at th

In movable insulation having three layers of material forming air pockets therebetween and motion producing means connected to said layers for moving the insulation over an area to be covered and retracting the insulation away from said area, the improvement comprising: side seal means located at the lateral edges of said layers for both preventing air infiltration currents from flowing from the interior of said air pockets to the exterior around said lateral edges and for mechanically resisting transverse forces in said layers caused by bulging of said layers as they are moved over and retracted from said area, said side seal means including first and second pairs of flexible outer seal strips attached to and located at the outside layers of said insulation, one member of each pair being secured to the outer surface of one outside layer and the other member of each pair being secured to the outer surface of the other outside layer, each said seal strip having a free edge, and including first and second flexible inner seal strips attached to opposite lateral edges of an inner layer of said insulation; said side seal means also including a pair of elongated channel-shaped members each defined by a bottom and a pair of upstanding fins adapted to be positioned over a respective one of the said lateral edges of said outer layers, each said channel member having an outer guide member attached to each of its fins and projecting toward its said bottom, and including an inner guide member positioned in each said channel-shaped member in a manner capable of resisting a transverse force thereon; said outer guide members of each channel-shaped member positively engaging a respective one of said outer seal strips with each said outer seal strip positioned between its respective outer guide member and a respective fin thereof, and each said inner guide member being positioned between its respective inner seal strip and the adjacent layer of its associated inner layer, whereby said inner guide members and said outer guide members mechanically separate said inner layer and said outer layer into spaced-apert relation to one another as the insulation is moved over the area to be covered.