| 摘要 |
FIELD: building, particularly closing structures, namely louver doors, windows, or grilles. ^ SUBSTANCE: covering means comprises left and right mounting brackets to connect the structure to opening, as well as upper horizontal cross-bar with right and left ends. Each end is pivotally secured to left and right mounting bracket correspondingly. Upper cross-bar may rotate about longitudinal axis between opened and closed position. Covering means also has a number of horizontal slats suspended to upper cross-bar. Each slat is spaced a distance from neighboring one in horizontal direction and may rotate about longitudinal slat axis between opened and closed positions. Each slat may move in vertical direction between the first position in which covering means is extended, and the second position, in which the covering means is retracted. In opened position of covering means major part of sunlight passes directly through the opening. In closed position of covering means major part of sunlight is prevented from passing through the opening. Each left and right ends of upper cross-bar comprises the first finger projecting along longitudinal axis thereof. At least one of left and right ends of upper cross-bar has the second finger connected to the first one. Each the first finger may be slidably received in horizontal direction in corresponding left and right mounting brackets. At least one finger of left and right ones has slot projecting upwards or downwards to which at least one the second finger is slidably engaged. ^ EFFECT: increased opening closing simplicity. ^ 19 cl, 149 dwg |
