Patent ID: 6799594
Filing Date: 2004-10-05
Classification: E04H,F16B,G09F,Y10T

Abstract:
An improved structure of a retractable framework including side rods, sloping rods, connectors, and rotating connectors, the connectors being positioned at the corners of the framework for connecting with the side rods and the sloping rods, the side rods being extended from the corners of the framework and the sloping rods being alternately positioned at the lateral face of the framework, the end portion of the sloping rod being connected to the connector, characterized in that:(a) the connector is provided with through holes for the insertion of the side rod and is provided with a securing hole for mounting with a screw element to lock the side rod, the connector is also provided with a notch for the pivotal connection of the sloping rod, and the connector is provided with a screw hole to horizontally mount with the side rod; (b) the side rod having one end provided internally with a screw mount and the other end portion mounted with a respective one of the rotating connectors which provides an extension connection; wherein the supporting device includes two side rods and a sliding mount, the side rods are extended diagonally on the same plane from the connector, the front ends of the side rods are pivotally connected, and the rod body is respectively provided with an engaging protrusion, notch and resilient plate, and the sliding mount is slidably provided on the side rod.