STRUCTURE OF JOINTING PROP OF PARASOL

A rib structure of a folding type parasol is provided to store the parasol by folding a middle rib, an end rib, a support rib, a connection rib and an upper rib, thereby significantly reducing volume of the parasol, and to replace a parasol cloth only when the parasol cloth is aged by having a parasol cloth settlement element for attaching and detecting a parasol cloth binding holder. A rib structure of a folding type parasol comprises: a middle rib(10) which is formed in a circular rod shape and has a lower ring portion(11) bent in a 45° direction at a lower end, an upper binding portion(12) connected to an upper connector of an end rib at an upper end, and a middle-lower portion connector(13) connected to a lower end of a support rib at a middle-lower portion; the end rib(20) which is formed in a circular rod shape and has an upper connector(21) connected to an upper binding portion(41) of a connection rib(40) at an upper end thereof and a parasol cloth settlement element(22) to be coupled to a parasol cloth binding holder at a lower end thereof; a support rib(30) which is formed in a circular rod shape and has a lower binding portion(32) to be coupled to the middle-lower portion connector of the middle rib at an lower end thereof and an upper connector(31) to be coupled to a lower binding portion(42) of a connection rib and a lower binding portion(52) of an upper rib(50) at the same time; the connection rib which is formed in a circular rod shape and has the upper binding portion to be connected to the upper connector of the support rib at an upper end and the lower binding portion at a lower portion; and the upper rib which is formed in a circular round shape and has an upper ring portion(51) at an upper end and the lower binding portion to be coupled to the upper connector of the support rib, wherein a saw-shaped gear is respectively formed at each of the lower binding portions of the upper rib and the connection rib, thereby the upper rib and the connection rib being simultaneously operated.