Supporting device

Claim 1

A supporting device comprising: a vertical tubular support means having a top end to be connected to an article to be supported and a bottom end; a connected member which is sleeved on said bottom end of said vertical tubular support means, said connecting member having a periphery and a plurality of lug members outwardly extending from said periphery in an equally spaced relation, each of said lug members having a pivot hole and an arcuate edge with a plurality of angularly spaced notches each of which notches open away from said pivot hole; a plurality of engaging members each of which is U-shaped in cross-section and has a positioning pin, a first and a second opposite parallel plate pivotally mounted at said pivot hole of one of said lug members of said connecting member to sandwich it, and a base interconnecting said first and second plates, said first and second plates having aligned oblong openings therein the long axes of which extend toward said pivot hole of the said lug member to which said first and second plates are pivotally mounted, said positioning pin passing through said oblong openings with the two ends of said positioning pin extending outward from said first and second plates, said positioning pin being laterally slidable in said aligned oblong openings to engage one of said notches of said lug member for preventing said engaging member from rotating about said lug member; a plurality of resilient means each of which is disposed in one of said engaging members to urge said positioning pin of said one of said engaging members to engage one of said notches of said one of said lug members; and a plurality of legs each of which is mounted to one of said bases of said engaging members; whereby, the angular position of each of the legs, relative to said connecting member, can be selectively varied and fixed wherein each said resilient means includes a plate disposed against said base of one of said engaging members and a strap with a curved end extending from said plate at an acute angle, said curved end embracing the respective positioning pin.