| 主权项 |
1. A jungle gym joint comprising:
a joint main body having joint shafts to which a plurality of pipes are connected; and a rotary member that is formed into a short rod shape and to one end of which the pipe is connected, wherein a folding portion is formed at the other end of the rotary member in which a flat plate portion is held in a bifurcate portion together with the joint main body so as to allow the pipe to be folded up, wherein a cylindrical cover member of which an engaging projection is provided on an inner circumferential surface is provided on an outer circumference of the folding portion, and wherein the cover member is guided so as to move freely back and forth in an axial direction as a result of a guide groove provided on the folding portion being brought into engagement with the engaging projection in such a way that when the cover member is guided to an advanced end position, the cover member restricts the folding portion from being folded by a circumferential wall of the cover member being brought into abutment with the flat plate portion or the bifurcate portion, while when the cover member is in a withdrawal end position, the circumferential wall is not in abutment with the flat plate portion or the bifurcate portion, and the cover member releases the restriction of folding of the folding portion. |
