Child support device

Abstract

A child support device includes first and second frame members interconnected by a coupling unit. The first frame member has a first connecting end portion that extends along a first axis. The second frame member has a second connecting end portion that extends along a second axis. The coupling unit includes a stop surface and a tubular coupling sleeve. The stop surface is formed on the first connecting end portion. The tubular coupling sleeve is mounted on the second connecting end portion, and is provided with a resilient member that is movable toward the second axis to engage the stop surface for interconnecting the first and second frame members, and that is forcible to move away from the second axis to disengage the stop surface when disconnecting the first and second frame members.

1 . A child support device comprising: 
 a first frame member having a first connecting end portion that extends along a first axis;    a second frame member having a second connecting end portion that extends along a second axis; and    a coupling unit for interconnecting said first and second connecting end portions such that said first axis is coaxial with said second axis, said coupling unit including    a stop surface formed on said first connecting end portion and disposed radially of said first axis, and    a tubular coupling sleeve mounted on said second connecting end portion, said first connecting end portion being inserted removably into said coupling sleeve, said coupling sleeve being provided with a resilient member that is movable toward said second axis in a normal state to engage said stop surface for interconnecting said first and second frame members, and that is forcible to move away from said second axis to disengage said stop surface and permit removal of said first connecting end portion from said coupling sleeve when disconnecting said first and second frame members.    
   
   
       2 . The child support device as claimed in  claim 1 , wherein said second connecting end portion is tubular and is formed with a radial through hole, said first connecting end portion extending into said second connecting end portion when inserted into said coupling sleeve, said resilient member being formed integrally with said coupling sleeve and having an engaging portion that is movable toward and away from said second axis and that is extendible into said second connecting end portion through said through hole for engaging said stop surface.  
   
   
       3 . The child support device as claimed in  claim 2 , wherein said first connecting end portion has a restricted neck section that is formed with said stop surface.  
   
   
       4 . The child support device as claimed in  claim 2 , wherein said first and second connecting end portions have circular cross-sections.  
   
   
       5 . The child support device as claimed in  Claim 2 , wherein said coupling sleeve is formed with a slot that extends parallel to said second axis, said resilient member being an elongate strip that has a connecting end connected to said coupling sleeve at one end of said slot, and an engaging end opposite to said connecting end, disconnected from said coupling sleeve, and formed with an engaging block that projects toward said second axis and that serves as said engaging portion.  
   
   
       6 . The child support device as claimed in  claim 1 , wherein said coupling sleeve is formed with a radial buttonhole, said resilient member having a button portion that extends movably into said button hole, a biasing portion that is disposed in and that abuts against said coupling sleeve, and an engaging frame disposed in said coupling sleeve and interconnecting said button portion and said biasing portion, said biasing portion biasing said engaging frame toward said second axis to engage said stop surface, said button portion being operable against biasing action of said biasing portion to move said engaging frame away from said second axis to disengage from said stop surface.  
   
   
       7 . The child support device as claimed in  claim 6 , wherein said coupling unit further includes a retaining unit provided on said coupling sleeve for movably retaining said engaging frame therein.  
   
   
       8 . The child support device as claimed in  claim 6 , wherein said resilient member is formed integrally from plastic.  
   
   
       9 . A child support device comprising a frame including a lower ground-engaging frame portion and an upper child-supporting frame portion connected to said ground-engaging frame portion, said ground-engaging frame portion including: 
 a first frame member having a first rear connecting end portion that extends along a first axis;    a second frame member having a second rear connecting end portion that extends along a second axis; and    a first coupling unit for interconnecting said first and second rear connecting end portions such that said first axis is coaxial with said second axis, said coupling unit including    a stop surface formed on said first rear connecting end portion and disposed radially of said first axis, and    a tubular coupling sleeve mounted on said second rear connecting end portion, said first rear connecting end portion being inserted removably into said coupling sleeve, said coupling sleeve being provided with a resilient member that is movable toward said second axis in a normal state to engage said stop surface for interconnecting said first and second frame members, and that is forcible to move away from said second axis to disengage said stop surface and permit removal of said first rear connecting end portion from said coupling sleeve when disconnecting said first and second frame members.    
   
   
       10 . The child support device as claimed in  claim 9 , wherein said coupling sleeve has a ground-contacting side with an anti-slip pad mounted thereon.  
   
   
       11 . The child support device as claimed in  claim 9 , wherein: 
 said first frame member further has a first front connecting end portion that extends along a third axis;    said second frame member further having a second front connecting end portion that extends along a fourth axis;    said child-supporting frame portion including a back support frame member having first and second lower connecting end portions that extend respectively along parallel fifth and sixth axes;    said child support device further comprising a pair of second coupling units for connecting a respective one of said first and second front connecting end portions to a respective one of said first and second lower connecting end portions such that said third axis is coaxial with said fifth axis and such that said fourth axis is coaxial with said sixth axis, each of said second coupling units including    a stop surface formed on the respective one of said first and second front connecting end portions and disposed radially of the respective one of said third and fourth axes, and    a tubular coupling sleeve mounted on the respective one of said first and second lower connecting end portions, each of said first and second front connecting end portions being inserted removably into said coupling sleeve of the respective one of said second coupling units, said coupling sleeve of each of said second coupling units being provided with a resilient member that is movable toward the respective one of said fifth and sixth axes in a normal state to engage said stop surface of the respective one of said second coupling units for connecting the respective one of said first and second front connecting end portions to the respective one of said first and second lower connecting end portions, and that is forcible to move away from the respective one of said fifth and sixth axes to disengage said stop surface of the respective one of said second coupling units and permit removal of the respective one of said first and second front connecting end portions from said coupling sleeve when disconnecting said back support frame member from said ground-engaging frame portion.    
   
   
       12 . The child support device as claimed in  claim 11 , wherein said child-supporting frame portion further includes a generally U-shaped seat support frame member having a pair of looped ends that engage said first and second front connecting end portions, respectively.  
   
   
       13 . The child support device as claimed in  claim 11 , further comprising a pair of frame retainers clamped respectively on said coupling sleeves of said second coupling units.  
   
   
       14 . The child support device as claimed in  claim 13 , wherein each of said frame retainers is formed with an engaging hole, said child support device further comprising a generally U-shaped hanging frame having a pair of free ends, each of which is extended removably and respectively into said engaging holes in said frame retainers.  
   
   
       15 . A child support device comprising a frame including a lower ground-engaging frame portion and an upper child-supporting frame portion connected to said ground-engaging frame portion, 
 said ground-engaging frame portion including a first frame member having a first front connecting end portion that extends along a first axis, and a second frame member having a second front connecting end portion that extends along a second axis,    said child-supporting frame portion including a back support frame member having first and second lower connecting end portions that extend respectively along parallel third and fourth axes,    said child support device further comprising a pair of coupling units for connecting a respective one of said first and second front connecting end portions to a respective one of said first and second lower connecting end portions such that said first axis is coaxial with said third axis and such that said second axis is coaxial with said fourth axis, each of said coupling units including    a stop surface formed on the respective one of said first and second front connecting end portions and disposed radially of the respective one of said first and second axes, and    a tubular coupling sleeve mounted on the respective one of said first and second lower connecting end portions, each of said first and second front connecting end portions being inserted removably into said coupling sleeve of the respective one of said coupling units, said coupling sleeve of each of said coupling units being provided with a resilient member that is movable toward the respective one of said third and fourth axes in a normal state to engage said stop surface of the respective one of said coupling units for connecting the respective one of said first and second front connecting end portions to the respective one of said first and second lower connecting end portions, and that is forcible to move away from the respective one of said third and fourth axes to disengage said stop surface of the respective one of said coupling units and permit removal of the respective one of said first and second front connecting end portions from said coupling sleeve when disconnecting said back support frame member from said ground-engaging frame portion.    
   
   
       16 . A child support device comprising: 
 a first frame member having a first connecting end portion that extends along a first axis;    a second frame member having a second connecting end portion that extends along a second axis;    a third frame member having opposite frame end portions and extending along a third axis; and    a pair of coupling units for connecting a respective one of said first and second connecting end portions to a respective one of said frame end portions such that said first and second axes are coaxial with said third axis, each of said coupling units including    a stop surface formed on the respective one of said first and second connecting end portions and disposed radially of the respective one of said first and second axes, and    a tubular coupling sleeve mounted on the respective one of said frame end portions, each of said first and second connecting end portions being inserted removably into said coupling sleeve of the respective one of said coupling units, said coupling sleeve of each of said coupling units being provided with a resilient member that is movable toward said third axis in a normal state to engage said stop surface of the respective one of said coupling units for connecting the respective one of said first and second frame members to the respective one of said frame end portions, and that is forcible to move away from said third axis to disengage said stop surface of the respective one of said coupling units and permit removal of the respective one of said first and second connecting end portions from said coupling sleeve when disconnecting said first and second frame members from said third frame member.