Wheeled luggage device with brake

Abstract

The luggage device has an extendible handle threaded in at least a tubular sleeve. An elastic element is housed in the tubular sleeve, supporting from below a connecting rod. A bottom end of the connecting rod is configured with a brake pad. A blind hole is configured on the extendible handle where a spring and a steel ball are housed to interact with a through hole of the tubular sleeve. When the extendible handle is pushed downward, the blind hole is aligned with the through hole of the tubular sleeve and the steel ball is pushed by the spring into the through hole, thereby detachably locking the extendible handle. In the mean time, the connecting rod is driven downward and the brake pad is pressed against the wheel to prevent it from rolling.

1 . A wheeled luggage device, comprising:
 a casing having at least two wheels on a bottom side;   at least a tubular sleeve configured inside and along a back side of said casing where a through hole is configured on the side wall of said tubular sleeve, and an elastic element and a lower piston on top of said elastic element are housed in a lower section of said tubular sleeve;   an extendible handle having at least a leg threaded in said tubular sleeve, said leg having an upper piston on a bottom end and a blind hole where a spring and a steel ball are housed; and   a connecting rod extended through said tubular sleeve and supported from below by said lower piston where a brake pad is configured on a bottom end of said connecting rod and is positioned above one of said wheels;   wherein, when said extendible handle is pushed downward, said upper piston drives said lower piston and said connecting rod downward and compresses said elastic element; and said brake pad is lowered to press against one of said wheels to prevent it from rolling.   
     
     
         2 . The wheeled luggage device according to  claim 1 , wherein, when said extendible handle is pushed downward, said blind hole is aligned with said through hole; and said spring pushes said steel ball so that said steel back protrudes into said through hole. 
     
     
         3 . The wheeled luggage device according to  claim 1 , wherein said connecting rod has an adjustment screw inside said casing adjacent to said brake pad.