Patent ID: 7380311

Claim:
A foldable articulation, comprising: a mounting seat; two pivot rods pivotally mounted on two opposite ends of the mounting seat; a folding device mounted on the mounting seat and releasably rested on each of the two pivot rods; wherein the folding device includes: two locking members each pivotally mounted in the mounting seat and each having a first end detachably rested on a respective one of the two pivot rods; a press member movably mounted between the two locking members; a push member secured on the press member to move therewith and rested on a second end of each of the two locking members; the press member has a first portion formed with a fixing hole through which the push member is extended; the two locking members are pivotally connected with each other; the second ends of the two locking members intersect mutually, and the push member abuts the second ends of the two locking members to press the second ends of the two locking members to move outward relative to each other so that the first ends of the two locking members are movable toward each other and are detachable from the pivot rods so as to fold the pivot rods; the mounting seat has a mediate portion formed with a fixing bore, each of the two locking members has a mediate portion pivotally mounted in the mounting seat and formed with a pivot hole, the press member has a second portion formed with an elongated guide slot, and the foldable articulation further comprises a pivot axle extended through the fixing bore of the mounting seat, the pivot hole of each of the two locking members and the guide slot of the press member, so that the two locking members are pivotally connected by the pivot axle and are pivotable about the pivot axle, and the press member is movable on the pivot axle; when the second end of each of the two locking members is pushed by the push member to move outward relative to the mounting seat, the two locking members are pivoted relative to the mounting seat so that the first end of each of the two locking members is moved inward relative to the mounting seat to detach from the respective pivot rod; when the press member is pressed upward, the push member is moved upward to push the second end of each of the two locking members, so that the second ends of the two locking members are pushed by the push member to move outward relative to each other, and the first ends of the two locking members are moved inward relative to each other to detach from the pivot rods.