Portable collapsible tent

Abstract

A portable collapsible tent includes a cover, a roof frame with a central pole, inclined roof ribs and spreaders, extensible legs, and cross bars. The ribs and spreaders are pivotally and movably jointed at the central pole. A locking unit secures the roof frame when the tent is pitched. Each leg has at one end a fixed corner member that provides a four-way connection and a multi-way support member that movably engages and locks onto the leg to support two cross bars and an inclined rib connected thereto with three diagonal braces. A lateral projecting foot member enables each leg to be anchored on the ground. Reinforcement ropes further secure the tent to the ground via the four-way connectors. The portable collapsible tent can be easily set up and collapsed without tools and has a strong structural integrity, able to withstand substantial stress and direct/indirect forces.

1 . A portable collapsible tent comprising: 
 a roof frame system having 
 a cover over said roof frame;  
 a central rib-holder pole;  
 a crown member securely attached to the top of said central rib-holder pole;  
 a plurality of inclined ribs movably attached to and extending radially from said crown member;  
 a spreader holder coaxially and movably attached to said central rib-holder pole;  
 a plurality of spreaders extending radially from said spreader holder and movably attached to said spreader holder and to said inclined ribs;  
   a plurality of cross bars, each of which having two members movably joined via a hinge joint that enables said members fully collapsible in a compact manner; and    a plurality of side legs for supporting said portable collapsible tent in an upright position; wherein each leg has 
 a corner member securely attached to the top of said leg and movably joining one of said inclined ribs and two of said cross bars; and  
 a multi-way support system comprising 
 a multi-way support member coaxially positioned over said leg; and  
 three diagonally positioned braces movably jointing said multi-way support member with one of said inclined ribs and two of said cross bars.  
 
   
   
   
       2 . The portable collapsible tent of  claim 1 , wherein said inclined ribs form hinge connections in a downward direction with said crown member, said spreaders, and said legs.  
   
   
       3 . The portable collapsible tent of  claim 1  or  2 , wherein each of said inclined ribs has two equal-lengths elements movably connected via a hinge joint that enables said elements fully collapsible in a compact position.  
   
   
       4 . The portable collapsible tent of  claim 3 , wherein said hinge joint movably connects said elements with one of said spreaders and enables the same fully collapsible.  
   
   
       5 . The portable collapsible tent of  claim 1 , wherein said spreaders are movably attached to each of said inclined ribs at its mid point.  
   
   
       6 . The portable collapsible tent of  claim 1 , wherein said central rib-holder pole has one or more retractable locking pin and said spreader holder has one or more corresponding positioning lock hole for receiving and securely engaging said locking pin; wherein said central rib-holder pole has a hollow body with an inner wall and an outer wall; and wherein said locking pin is spring-biased with one end thereof securely attached to said inner wall and the other end protruding outside said outer wall of said central rib-holder pole.  
   
   
       7 . The portable collapsible tent of  claim 1 , wherein said braces form hinge connections between said multi-way support member and a respective pivot point positioned on each of said cross bars.  
   
   
       8 . The portable collapsible tent of  claim 1  or  7 , wherein said multi-way support member has one or more retractable locking pin and said leg has one or more corresponding positioning lock hole for receiving and securely engaging said locking pin; wherein said leg has a hollow body with an inner wall and an outer wall; and wherein said locking pin is spring-biased with one end thereof securely attached to said inner wall and the other end protruding outside said outer wall of said leg.  
   
   
       9 . The portable collapsible tent of  claim 1 , wherein each of said legs is telescopically extensible and has one or more locking means for securely adjusting the height of said tent.  
   
   
       10 . The portable collapsible tent of  claim 1 , wherein said corner member is a four-way connector.  
   
   
       11 . The portable collapsible tent of  claim 1 , wherein each of said legs has one or more receiving means at its lower end to accommodate and secure a tail hook of said cover.  
   
   
       12 . The portable collapsible tent of  claim 1 , wherein said members have an equal length; and wherein said hinge joint is capable of automatically locking said members in a fully extended position.  
   
   
       13 . The portable collapsible tent of  claim 1 , wherein each of said legs has a foot member with at least one through-hole thereon to receive one or more anchoring means for firmly securing said tent to ground or a permanent fixture.  
   
   
       14 . The portable collapsible tent of  claim 1 , wherein each of said legs has a telescopic bar; wherein said leg has one or more retractable locking pin and said telescopic bar has one or more corresponding positioning lock hole for receiving and securely engaging said locking pin; wherein said telescopic bar has a hollow body with an inner wall and an outer wall; and wherein said locking pin is spring-biased with one end thereof securely attached to said inner wall and the other end protruding outside said outer wall of said telescopic bar.  
   
   
       15 . The portable collapsible tent of  claim 14 , wherein said telescopic bar has one or more receiving means at its lower end to accommodate and secure a tail hook of said cover.  
   
   
       16 . The portable collapsible tent of  claim 1  or  15 , wherein said cover has a plurality of fastener means disposed along said cross bars for releasable bonding between said cover and said cross bars.