Patent ID: 6588481
Filing Date: 2003-07-08
Classification: E06B

Abstract:
A fixing mount and an upper beam for a Venetian blind, comprising a fixing seat, an adjusting roller and a roller, wherein:said fixing seat has a rhomboid shape, with a base board and a pair of vertically raised parallel walls which are obliquely oriented with respect to an axial direction of an upper beam, ends of said parallel walls located in fit abutment against interior surfaces of said upper beam; two opposite longitudinal sides of said base board being slanted with respect to the axial direction of said upper beam as are the two parallel walls, thereby defining an angled receiving corner to house an adjusting unit; adjacent to an upper edge of each of the parallel walls is disposed a positioning seat which projects from each respective wall, with joint walls of the positioning seats being in parallel and orthogonal to a longitudinal wall of the upper beam respectively, and an open-end round recess extending downwardly from an edge of each of the joint walls perpendicular to a side wall of the upper beam, the round recess of each positioning seat is oriented in a longitudinal direction of said upper beam, enabling the adjusting roller to be positioned in parallel to the upper beam in assembly without interference with said fixing seat; said base board having a round hole at a center thereof, with a through hole located on each opposite side adjacent to said round hole; said round hole and said through holes in alignment with a line perpendicular to the longitudinal side walls of said upper beam; between each through hole and said round hole is a support wall perpendicular to the parallel walls of said fixing seat, a receiving chamber being defined between said two parallel support walls, on an inner side of each said support wall is a retaining recess, said retaining recesses facing oppositely to each other; each end of said adjusting roller has a shaft journal with an enlarged end edge, a square hole longitudinally extending through a center of said adjusting roller; said roller has a journal extension at each end such that said journal extensions of the roller are in registration with the retaining recesses on the support walls enabling the roller to be housed in the receiving chamber of the fixing seat; said journal shafts of the adjusting roller are engaged with said open-end round recesses of the parallel walls of said positioning seat with the enlarged end edges sticking out of the parallel walls for retaining purpose; whereby said fixing seat can be placed close to said an adjusting unit so as to make the distance between an end of said upper beam and said adjusting unit longer for adapting to a wide range of window brackets.