Rolling-ball style cosmetic container structure

Abstract

A rolling-ball style cosmetic container structure includes a tube, an axle sleeve, a hollow piston rod, a resilient member and an exterior cap. The axle sleeve includes a holding space, an inner flange, an outer flange, a resistant holding surface and a material discharge hole. The hollow piston rod includes a flanged disk, an annular flange, a receiving space, a central bore, a rod part and a material discharge cap. The hollow piston rod closes the material discharge hole in the retracted position and being with the central bore, the holding space, and the material discharge hole in fluid communication when the hollow piston rod is in the extended position. A supporting unit is formed in the receiving space to support the rolling balls but does not totally restrict the rolling balls' movement, and the rolling balls' final positions can be determined by the material discharge cap.

1 . A rolling-ball style cosmetic container structure comprising:
 a tube including a containing space for containing liquid, an opening and a threaded part, the opening arranged axially at one end and the threaded part mounted near the opening;   an axle sleeve including a holding space, an inner flange, an outer flange, a resistant holding surface and a material discharge hole extending between the holding space and the containing space of the tube; the resistant holding surface formed inside the axle sleeve and the axle sleeve connected to the tube by being sleeved inside of the opening;   a hollow piston rod including a flanged disk, an annular flange, a receiving space, a central bore and a rod part, the receiving space used for receiving at least one rolling ball, the flanged disk and the annular flange being mounted on the rod part, and the hollow piston rod movably mounted in the holding space of the axle sleeve between an extended position and a retracted position, wherein the hollow piston rod closes the material discharge hole in the retracted position and is with the central bore, the holding space, and the material discharge hole in fluid communication when the hollow piston rod is in the extended position,   wherein a supporting unit which comprises a plurality of supporting bars is formed in the receiving space to support the rolling balls but does not completely restrict the rolling balls' movement, and the hollow piston rod further comprises a material discharge cap with a plurality of position restricting holes, the material discharge cap threadedly mounted on the hollow piston rod and the position restricting holes configured to secure each rolling ball's position in the receiving space;   a resilient member comprising a first end and a second end, the first end contacts with the resistant holding surface, the second end contacts with the annular flange of the piston rod, the annular flange being greater than the inner flange, the annular flange being stopped by the inner flange; and   an exterior cap having a pressing member and an inner threaded portion; the inner threaded portion threadedly connected to the threaded part of the tube; the pressing member presses the hollow piston rod and constricts the resilient member; the rod part blocks the material discharge hole of the axle sleeve to avoid leaking; the exterior cap being removably connected to the tube to enclose the opening.   
     
     
         2 . The cosmetic container structure of  claim 1 , wherein the tube is a soft/flexible tube. 
     
     
         3 . The cosmetic container structure of  claim 1 , wherein the tube is a blow-molding container. 
     
     
         4 . The cosmetic container structure of  claim 1 , wherein the tube is an injection-molding container and pen-shaped. 
     
     
         5 . The cosmetic container structure of  claim 1 , wherein the tube is an injection-molding vacuum container. 
     
     
         6 . The cosmetic container structure of  claim 1 , wherein the supporting bars are arranged to be cross-shaped. 
     
     
         7 . The cosmetic container structure of  claim 1 , wherein the number of the position restricting hole is identical to the number of the rolling ball. 
     
     
         8 . The cosmetic container structure of  claim 1 , wherein the hollow piston rod further comprises a sealing gasket to prevent the liquid in the tube from leaking. 
     
     
         9 . The cosmetic container structure of  claim 7 , wherein three rolling balls are positioned in the receiving space.