Supporting gear structure for retractable folding doors

A supporting gear structure for retractable folding doors, comprising a folding door made up of a plurality of pivotally connected door panels that can be mutually stacked or expanded in operation wherein at the corresponding opposite upper edges of both lateral outer door panels are respectively disposed a fixed side and a movable side each having a sealing cap mounted thereto, and the sealing cap has a connecting rod with a positioning stop seat extending upwards to be coupled with a support member having a coupling groove and a base mount provided therewith;

• the support member also includes a guide rod extending upwards on top of the base mount to be pivotally guided and accommodated into a guide opening of a top rail thereby, and the guide rod of the support member mounted at the fixed side thereon is engaged with a fixing hole of a fixing support element;
• at the bottom edge of the fixed side thereof is disposed a positioning post led and fixed to an adjusting slot of a lower support plate thereby;
• the present invention be characterized by that;
• the guide rod of the support member has a protrusive flange extending at an appropriate position thereon to be accommodated into the top rail and supported by a set of stop hooks disposed at both sides of the top rail so as to stably hang the folding door at the top rail thereon.