Collapsible chair

Abstract

A collapsible chair includes a support assembly. The support assembly includes a front leg member having two spaced-apart forward legs, each of which has an upper end; and a rear leg member having two spaced-apart rearward legs, each of which has an upper end. The collapsible chair also includes a seat frame having a rear portion pivotally connected to the forward legs, and a front portion pivotally connected to the upper ends of the rearward legs. A backrest frame has a lower end connected detachably to the upper ends of the forward legs, and a connecting mechanism detachably secures the backrest frame to the front leg member. A seat fabric is mounted to the backrest frame and the seat frame.

1 . A collapsible chair comprising: 
 a support assembly including 
 a front leg member having two spaced-apart forward legs, each of said forward legs having an upper end, and  
 a rear leg member having two spaced-apart rearward legs, each of said rearward legs having an upper end, said rearward legs crossing said forward legs;  
   a seat frame having a rear portion pivotally connected to said forward legs, and a front portion pivotally connected to said upper ends of said rearward legs;    a backrest frame having a lower end connected detachably to said upper ends of said forward legs;    a connecting mechanism detachably securing said backrest frame to said front leg member; and    a seat fabric mounted to said backrest frame and said seat frame;    wherein said seat fabric includes a seat section mounted to said seat frame, a back support section mounted to said backrest frame, and a sleeve formed on a bottom surface of said seat fabric between said seat section and said back support section, said support assembly further including an extension member extending between said rearward legs and pivotally connected thereto, said sleeve being sleeved onto said extension member.    
   
   
       2 . (canceled)  
   
   
       3 . The collapsible chair as claimed in  claim 1 , wherein said extension member includes a pair of spaced-apart side rods pivoted to said rearward legs, and a base rod interconnecting said side rods, said sleeve of said seat frame being sleeved onto said base rod.  
   
   
       4 . The collapsible chair as claimed in  claim 1 , wherein said rear portion of said seat frame includes a pair of spaced-apart substantially straight seat segments, said front portion of said seat frame having an arc seat segment interconnecting front ends of said straight seat segments.  
   
   
       5 . The collapsible chair as claimed in  claim 4 , wherein said backrest frame includes a pair of spaced-apart substantially straight back segments respectively and detachably mounted to said upper ends of said forward legs of said front leg member, and an arc back segment interconnecting said straight back segments.  
   
   
       6 . A collapsible chair comprising: 
 a support assembly including 
 a front leg member having two spaced-apart forward legs, each of said forward legs having an upper end, and  
 a rear leg member having two spaced-apart rearward legs, each of said rearward leas having an upper end, said rearward legs crossing said forward legs;  
   a seat frame having a rear portion pivotally connected to said forward legs, and a front portion pivotally connected to said upper ends of said rearward legs;    a backrest frame having a lower end connected detachably to said upper ends of said forward legs;    a connecting mechanism detachably securing said backrest frame to said front leg member; and    a seat fabric mounted to said backrest frame and said seat frame;    wherein said rear portion of said seat frame includes a pair of spaced-apart substantially straight seat segments, said front portion of said seat frame having an arc seat segment interconnecting front ends of said straight seat segments;    wherein said backrest frame includes a pair of spaced-apart substantially straight back segments respectively and detachably mounted to said upper ends of said forward legs of said front leg member, and an arc back segment interconnecting said straight back segments;    wherein said seat fabric includes a pair of spaced-apart lateral sleeve sections and a front sleeve section, said lateral sleeve sections being sleeved onto said straight seat segments, said front sleeve section being sleeved onto said arc seat segment of said seat frame.    
   
   
       7 . The collapsible chair as claimed in  claim 6 , wherein said back support section of said seat fabric includes a back sleeve section that is sleeved onto said arc back segment.  
   
   
       8 . A collapsible chair comprising: 
 a support assembly including 
 a front leg member having two spaced-apart forward legs, each of said forward legs having an upper end, and  
 a rear leg member having two spaced-apart rearward legs, each of said rearward legs having an upper end, said rearward legs crossing said forward legs;  
   a seat frame having a rear portion pivotally connected to said forward legs, and a front portion pivotally connected to said upper ends of said rearward legs;    a backrest frame having a lower end connected detachably to said upper ends of said forward legs;    a connecting mechanism detachably securing said backrest frame to said front leg member; and    a seat fabric mounted to said backrest frame and said seat frame;    wherein said rear portion of said seat frame includes a pair of spaced-apart substantially straight seat segments, said front portion of said seat frame having an arc seat segment interconnecting front ends of said straight seat segments;    wherein said backrest frame includes a pair of spaced-apart substantially straight back segments respectively and detachably mounted to said upper ends of said forward legs of said front leg member, and an arc back segment interconnecting said straight back segments;    wherein said straight seat segments have distal ends respectively and pivotally connected to said forward legs of said front leg member, said upper ends of said rear leg members being respectively and pivotally connected to said straight seat segments in front of said distal ends of said straight seat segments.    
   
   
       9 . The collapsible chair as claimed in  claim 5 , wherein said upper end of each of said forward legs has an integral hollow extension, said straight back segments having bottom end portions respectively sleeved onto said hollow extensions of said forward legs.  
   
   
       10 . The collapsible chair as claimed in  claim 9 , wherein said hollow extension of each of said forward legs includes a first aperture formed therethrough, each of said bottom end portions of said straight back segments includes a second aperture formed therethrough, said connecting mechanism including a spring-loaded latch mounted in said hollow extension of each of said forward legs, and projecting resiliently into said first aperture.  
   
   
       11 . The collapsible chair as claimed in  claim 1 , further comprising a pair of linking members each having a rearward end pivotally connected to a corresponding one of said rearward legs, and a forward end pivotally connected to a corresponding one of said forward legs.