Roller mount on the upper beam of venetian blind

Abstract

A roller mount on the upper beam of a Venetian blind is made up of a bottom board, and a pair of opposite side boards wherein each side board thereof is provided with an arc opening through hole concaved at the upper edge thereof for a protruded fixing post of an adjusting wheel to be mounted thereon, and the bottom board thereof is equipped with a central round through hole and a pair of squared through holes with a pair of vertical supporting walls extending symmetrically between the central through hole and the squared through holes to define an elongated engaging chamber there-between for a roller to be housed therein. An arc slide guiding recess and a spherical retaining cavity are vertically cut at the corresponding inner side of the opposite supporting walls thereon respectively, and a spherical locating end of the roller is stably fixed at the retaining cavity therein to form a retaining fulcrum at one side of the roller, permitting a slant guide post disposed at the other side of the roller thereof to slide and rotate smoothly along the slide guiding recess therein according to the traction or releasing movement of a pull cord so as to properly adjust the positions of the roller in any angles therewith, facilitating a smoother rotation of the roller and preventing it from getting stuck in operation thereof.

Dependencies are inferred from the claim text.