Motorized louver blind structure in a double glazed window unit and method of assembling the blind structure

In combination, a louver blind structure and a doubled glazed window unit, said window unit comprising:

• a) two spaced-apart glass panels;
• and
• b) a window frame spacing said glass panels, comprising a number of peripheral elongated channel members and an equal number of corner members, the latter being adapted and correctly dimensioned to engage said peripheral channel members in an anchoring fashion, each corner member linking two channel members, so as to close said window frame on all sides between said glass panels;
• wherein said window unit defines an inner chamber between said glass panels and inside said window frame, said louver blind structure positioned inside said inner chamber and comprising:
• a) a plurality of parallel and pivotable slat members;
• b) reversible power means secured to said window frame and having a driving shaft parallel to and near one of said window frame peripheral channel members;
• c) actuating means linking said power means driving shaft to said slat members, causing a reversible pivoting movement of said slat members upon powering of said power means;
• and
• d) an alignment member for correctly and securely positioning said power means driving shaft relative to said actuating means, said alignment member being located adjacent said actuating means and anchored to said window frame.

A method of assembling a louver blind structure inside a doubled glazed window unit, said window unit of the type comprising two glass panels, a number of peripheral elongated channel members and an equal number of corner members, said louver blind structure comprising a plurality of slat members having pivot shafts, an elongated support channel member, a driving shaft, power means, actuating means including a rail member and an actuator bar movable along said rail member, an alignment member defining a first and a second leg and a bore through said second leg, and an alignment sleeve, said method comprising the following steps:

• a) attaching said rail member along at least one of said peripheral channel members;
• b) pivotally engaging said actuating bar with said slat member pivot shafts;
• c) abutting said second leg of said alignment member against said rail member and fixing it thereto;
• d) engaging said driving shaft in said actuating bar, through said bore of said alignment member second leg;
• e) axially engaging said alignment sleeve around said driving shaft;
• f) fixing said alignment sleeve in said alignment member second leg bore, for axially and radially positioning said driving shaft relative to said alignment member and said actuating means;
• g) engaging said alignment member first leg in said support channel member and fixing it thereto;
• h) connecting said power means to said driving shaft;
• and
• i) fixing said power means to said support channel member.