Tent frame structure

Abstract

A tent frame structure comprises an axis member and a plurality of brackets pivotally engaging with the axis member. Each bracket includes a first rod set, a second rod set pivotally engaging with the first rod set and a post means pivotally engaging with the second rod set. The post means is movable outwards to extend the first rod set, the second rod set and the post means for extending and stretching the frame.

What is claimed is:  
     
         1 . A tent frame, comprising: 
 an axis member having first joints mounted thereon pointing to multiple directions;    at least one first rod set pivotally engaging with the first joints; and    at least one post means pivotally engaging with the first rod set;    wherein the post means is movable outwards to extend the first rod set and the post means for extending and stretching the frame.    
     
     
         2 . The tent frame of  claim 1 , wherein the first rod set includes a first radius rod and a first ulna rod.  
     
     
         3 . The tent frame of  claim 2 , wherein the first radius rod and the first ulna rod have respectively one end attached to a first radius joint and a first ulna joint to pivotally engage with the first joints, and the first ulna rod has another end attached to a second joint.  
     
     
         4 . The tent frame of  claim 3 , wherein the second joint includes a tenon for latching a second rod set.  
     
     
         5 . The tent frame of  claim 1 , wherein the post means includes at least one strut with an outer strut attaching to a fifth joint and a sixth joint.  
     
     
         6 . The tent frame of  claim 1 , wherein the strut is movable for adjusting the height of the frame.  
     
     
         7 . The tent frame of  claim 1 , wherein at least one strut has an adjusting means located thereon for adjusting the height of the frame.  
     
     
         8 . A tent frame, comprising: 
 an axis member having first joints mounted thereon pointing to multiple directions;    at least one first rod set pivotally engaging with the first joints;    at least one second rod set pivotally engaging with the first rod set; and    at least one post means pivotally engaging with the second rod set;    wherein the post means is movable outwards to extend the first rod set, the second rod set and the post means for extending and stretching the frame.    
     
     
         9 . The tent frame of  claim 8 , wherein the second rod set includes a second radius rod and a second ulna rod.  
     
     
         10 . The tent frame of  claim 8 , wherein the second radius rod has one end attached to a third joint which is pivotally engaged with a second joint located on a first ulna rod and a first radius rod, and another end pivotally engaged with a fifth joint of the post means.  
     
     
         11 . The tent frame of  claim 8 , wherein the second ulna rod has one end attached to a fourth joint pivotally engaging with the second joint, and another end pivotally engaging with a six joint located on the post means.  
     
     
         12 . The tent frame of  claim 8 , wherein the second ulna rod includes a latch mechanism.  
     
     
         13 . The tent frame of  claim 12 , wherein the latch mechanism includes a latch tongue which has a latch lip located at one end thereof and another end fastening to a restore element and a link element, the restore element having one end pressed against the inner wall of the second ulna rod, the link element having one end fastened to a driven element which is pivotally engaged on an axis where the second ulna rod and the sixth joint engaged, the driven element having one end formed an extended cam element.  
     
     
         14 . The tent frame of  claim 13 , wherein the sixth joint is pivotally engaged with a passive element which is movable with the driven element.  
     
     
         15 . The tent frame of  claim 13 , wherein the restore element and the link element are elastic.  
     
     
         16 . The tent frame of  claim 8 , wherein the joints, the radius rod and the ulna rod are pivotally engaged through pivotal elements and pivotal shafts.