Large-scale inward heel type strut frame for a tent

Abstract

The present invention provides an introverted tent frame of large frame tent typically comprised of four poles and roof bracing struts, between two adjacent poles there are inter-pivoted brace sets set upon, said inter-pivoted brace set includes two cross bracing struts; on the other side, a sliding hub fitting on the pole in movable connection is connected to a bracing strut of the cross brace set in hinging connection; wherein, on the bracing strut hinged on the sliding hub, the distance from the cross pivoted point to the hinged point of the sliding hub is longer than the distance from the cross pivoted point to the other hinged point of the other bracing strut in the brace set. Therefore, the poles appears introverted state as pitched up, and appears vertical state as folded up saving space in storing.

1 . An introverted tent frame of large frame tent typically comprised of four poles and roof bracing struts, between two adjacent poles there are interpivoted brace sets set upon, said inter-pivoted brace set includes two cross bracing struts; on the other side, a sliding hub fitting on the pole in movable connection is connected to a bracing strut of the cross brace set in hinging connection; wherein, on the bracing strut hinged on the sliding hub, the distance from the cross pivoted point to the hinged point of the sliding hub is longer than the distance from the cross pivoted point to the other hinged point of the other bracing strut in the brace set.  
   
   
       2 . An introverted tent frame of large frame tent as claimed in  claim 1 , wherein there are at least two cross brace sets between two adjacent poles.  
   
   
       3 . An introverted tent frame of large frame tent as claimed in  claim 1 , wherein bracing strut hinged on the sliding hub is kept that the distance from the cross pivoted point to the hinged point of the sliding hub is longer 2 to 8 cm than the distance from the cross pivoted point to the hinged point of other bracing strut in this set.