Lid assembly for cup

Abstract

A lid assembly of the present invention is used for clipping a rim flange of a cup. The lid assembly includes a lower member and an upper member. The lower member has a top clipping surface and several barbs. The upper member has a bottom clipping surface and at least a barb portion corresponding to the barbs. The barb portion is able to engage with the barbs. As such, the rim flange can be clipped between the top clipping surface and the bottom clipping surface. Therefore, the lid assembly can be firmly assembled on a cup by clipping the rim flange, even though the specification of the cup is slightly changed. Moreover, the lid assembly can not be detached unpredictably.

1 . A lid assembly for a cup, the lid assembly being used for clipping a rim flange of the cup, the lid assembly comprising:
 a lower member, comprising an annular clipping portion and a holding portion, the holding portion stretching from the clipping portion, the clipping portion having a top clipping surface;   an upper member, comprising a bottom clipping surface, an outer contour of the bottom clipping surface being not smaller than an inner contour of the rim flange, the upper member being selectively fixed on the lower member, so that the top clipping surface and the bottom clipping surface are able to clip the rim flange therebetween;   wherein the clipping portion is formed with plurality of barbs, the upper member comprises at least a barb portion, the barb portion is slidable with respect to the barbs when the upper member and the lower member move close to each other along an axis, the barb portion is able to engage with the barbs so as to prevent the upper member and the lower member move away from each other.   
     
     
         2 . The lid assembly of  claim 1 , wherein the holding portion is ring shaped, the holding portion stretches downwardly from the clipping portion. 
     
     
         3 . The lid assembly of  claim 1 , wherein the upper member further comprises a lid layer, the lid layer substantially covers an opening of the cup, a hole is defined by the lid layer, the hole communicates with an inner space of the cup. 
     
     
         4 . The lid assembly of  claim 3 , wherein the bottom clipping surface is located on a bottom surface of the lid layer. 
     
     
         5 . The lid assembly of  claim 1 , wherein the upper member further comprises plurality of lower pressing protrusions, the lower pressing protrusions are disposed on the bottom clipping surface, the lower pressing protrusions are used for clamping an inner edge of the rim flange. 
     
     
         6 . The lid assembly of  claim 1 , wherein the lower member further comprises plurality of upper pressing protrusions, the upper pressing protrusions are disposed upwardly on the top clipping surface, the upper pressing protrusions are used for inserting in a slit defined between the rim flange and a cup body of the cup. 
     
     
         7 . The lid assembly of  claim 5 , wherein the lower member further comprises plurality of upper pressing protrusions, the upper pressing protrusions are disposed upwardly on the top clipping surface, the upper pressing protrusions are used for inserting in a slit defined between the rim flange and a cup body of the cup. 
     
     
         8 . The lid assembly of  claim 1 , wherein the clipping portion further comprises an inner side surface, the inner side surface is adapted for an outer surface of a cup body of the cup to smoothly fit therewith. 
     
     
         9 . The lid assembly of  claim 5 , wherein the clipping portion further comprises an inner side surface, the inner side surface is adapted for an outer surface of a cup body of the cup to smoothly fit therewith. 
     
     
         10 . The lid assembly of  claim 6 , wherein the clipping portion further comprises an inner side surface, the inner side surface is adapted for an outer surface of the cup body of the cup to smoothly fit therewith. 
     
     
         11 . The lid assembly of  claim 7 , wherein the clipping portion further comprises an inner side surface, the inner side surface is adapted for an outer surface of the cup body of the cup to smoothly fit therewith. 
     
     
         12 . The lid assembly of  claim 1 , wherein the upper member is formed with plurality of splits extending axially. 
     
     
         13 . The lid assembly of  claim 1 , wherein the upper member comprises plurality of barb portions, the barb portions are located on a periphery of the upper member respectively. 
     
     
         14 . The lid assembly of  claim 1 , wherein the upper member has only one barb portion, the barb portion is annularly located on a periphery of the upper member substantially.