Patent ID: 6094864
Filing Date: 2000-08-01
Classification: E06B

Abstract:
A frame structure comprising two lateral columns, several slats being disposed between the two lateral columns, a rotary adjustment device being disposed in one lateral column for changing the angle of the slats and adjusting the ventilation effect, said frame structure being characterized in that:each lateral column is an integrally molded U-shaped body, one side of the surface of the lateral column being formed with a row of through holes which are longitudinally arranged corresponding to the slats, two inner side walls of the lateral column being respectively formed with a rib, one of the side walls being disposed with two parallel stopper walls between which a rack is mounted, an inner side of each through hole being disposed with a T-gear meshing with the rack, one end of the T-gear being disposed with an enlarged flange positioned between one of the stopper walls and the inner surface of the lateral column, a center of the gear being formed with a rectangular hole corresponding to the through hole of the lateral column, one side of each slat being disposed with a shaft rod having a rear rectangular post passed through each through hole of the lateral column to insert into the rectangular hole of the T-gear; anda cover board is mated with the lateral column, an upper and a lower ends of the cover board being disposed with an upper and a lower covers extending from one side thereof, said one side of the cover board being disposed with two parallel latch ribs corresponding to the lateral column, an outer side of the latch rib being formed with a latch channel, whereby when covering an open side of the U-shaped lateral column, the ribs of the lateral column are just engaged and latched in the latch channels, a lower section of the other side wall of the lateral column being formed with a rectangular perforation, a rotary wheel engaged with the rack partially protruding out of the perforation, a center of the rotary wheel being formed with a rectangular hole in which a shaft pin is inserted, a middle section of the shaft pin being a rectangular section and two ends of the shaft pin being cylindrical rods respectively inserted into circular sockets formed on lower sections of inner surfaces of the lateral column and the cover board.