Patent ID: 6354316
Filing Date: 2002-03-12
Classification: E04H

Abstract:
A skeleton for umbrella tent comprising a top hub, a bottom hub, multiple brace poles pivotally connected at inner ends to an outer periphery of said top hub at equal space that said brace poles are allowed to radially stretch by a predetermined angle, multiple stretch arms corresponding to said brace poles in number and pivotally connected at inner ends to an outer periphery of said bottom hub and at outer ends to predetermined points on the brace poles that said stretch arms are allowed to radially stretch by a predetermined angle, and a pull rope fixedly connected at an upper end to said top hub and at a lower end to a ring handle; said skeleton for umbrella tent being characterized in that a telescopic portion is positioned between and fixed at two ends to said top and said bottom bubs, said telescopic portion consisting of a set of sections in the form of hollow truncated cones, said sections each being provided with means of a radially outward projected flange around a lower outer periphery and a radially inward projected flange around an upper inner periphery, so that any one section of smaller truncated cone does not undesirably slide out of one adjacent section of larger truncated cone from a top of the latter and accordingly allows said telescopic portion to be freely stretched or collapsed through control of said pull rope that extends through said telescopic portion, and that an extension pole is pivotally connected at an inner end to an outer end of each said brace pole by engaging tenons provided on said inner and said outer ends of said extension poles and said brace poles, respectively, into sliding slots provided on a coupler disposed between said extension and said brace poles, that said extension poles can be either locked into an extended position from said brace poles or pivotally bent by 360 degrees into a folded position to abut on said brace poles.