Patent ID: 9074401
Filing Date: 2015-07-07
Classification: E05F,E05Y,E06B,Y10T

Abstract:
1. A drive system for displacing a position of a covering disposed over a surface portion of a building, the drive system comprising: a mechanism for converting a rotary motion originating from a rotary energy generator into a longitudinal motion of at least one carriage that is adapted for attachment to the covering, such that said rotary motion will result in a longitudinal displacement of the covering, the mechanism comprising a plurality of spindle sections drivingly connected at a longitudinal end of at least one of said spindle sections to said rotary energy generator, the system comprising connection means for operatively connecting two spindle sections in longitudinal extension from each other so as to provide a combined drive spindle of extended length; and a guide track member for insertion between the surface portion of the building and the covering, the guide track member being provided with the spindle track for accommodating the drive spindle and an adjacent guide track for accommodating the at least one carriage, wherein the guide track member is attachable to said surface portion and the covering is attachable to said at least one carriage that is displaceable accommodated in the adjacent guide track; wherein the drive system further comprises one or more bearing members distributed spaced apart from each other along the length of the drive spindle at intervals corresponding to the length of the spindle sections, such that the bearing members are arranged at positions where two spindle sections are connected to each other, and wherein the bearing members are formed as plates having an outer periphery matching the interior circumference of the spindle track and a central through hole through which the drive spindle extends.