Foldable tent frame for coupling tent cloth with tent frame in integral form

A foldable tent frame for a large tent, the tent having a tent cloth 2 provided with sleeve-like supporting cloths 2a, said foldable tent frame comprising:

• a) a central hub 3;
• b) a plurality of frame members 1 each having an upper tip movably joined to said hub 3, said frame members 1 for coupling with the tent cloth 2 through the supporting cloths 2a in an integral form, each of said frame members 1 comprising:
• i) a plurality rods 1a;
• ii) two hinged straight joints B connecting said rods 1a;
• iii) a hinged bent joint C connecting said rods 1a and disposed between said two straight joints B across said rods 1a;
• iv) a grounding device A connected through one of said rods to said hinged bent joint C and forming a lowermost portion of said frame member 1, whereby a lower portion of said frame member below said hinged bent joint C serves as a supporting pole, and an upper portion of said frame member above said hinged bent joint C serves as a rafter;
• and wherein
• c) said hinged bent joint C comprises:
• i) upper and lower connecting tubes 9 and 9' pivotally joined together through respective upper and lower hinge plates 9a and 9a' and through a transverse supporting shaft 9b;
• ii) said lower hinge plate 9a' having an inclined seating surface 9d for holding said upper hinge plate 9a at a desired inwardly inclined angle in a direction facing said central hub 3, said angle falling in a range of about 3.5 degrees to about 45 degrees;
• iii) said inclined seating surface 9d of said lower hinge plate 9a' having a recess 9c' formed therein;
• iv) said upper hinge plate 9a including a coupling projection 9c that is receiving by engaged by said recess 9c' as said upper hinge plate 9a is rotated counter clockwise into engagement with said inclined seating surface 9d;
• and
• v) said hinged bent joint C being inwardly foldable towards said central hub 3 such that an inward force applied at said hinged bent joint C rotates said upper hinge plate 9a and connecting tube 9 in a clockwise direction from a first, deployed position wherein said upper hinge plate 9a and connecting tube 9 are held at said desired inclined angle into a second, compactly folded position wherein said upper hinge plate 9a and connecting tube 9 are disposed adjacent said lower hinge plate 9a' and connecting tube 9', respectively.