The streets of Hong Kong are very tightly knit and constantly bustling with all manner of people. When navigating these small spaces, many times people are injured by carts or even trapped in markets or alleyways until the carts can be maneuvered somewhere else.
The issue needed solving and the best way to fix it was to integrate a turning mechanism within the cart. The axis on which the cart turned is in the rear, which reduces stress on the wrist of the user and provides more opportunity to navigate tight corners.
The user end of the mechanism works very much like that of a bike brake lever. The user simply pulls the lever on the ride half of the handle towards themselves to release a turning pin.The turning pin is spring loaded but when lifted by the user it allows the back wheels to pivot up to a full 360º. The pin rests along a channel within a protective housing near where the axis meets the frame of the cart. By simply releasing the turning lever, the pin will eventually fall back into the hole that it was originally resting in, thus locking the back wheels in their default angle.