Datamax-o'neil Corporation

Liuzhi Yang

Ching Hong Chua

Guy M Heaton

A media holder assembly () includes a base () secured to a platform (). The platform () has a central cylindrical depression (). A first hub () protrudes from the center of the depression (). A first spring (), concentric to the first hub () biases a second, ring-shaped hub () which is fitted over the first spring (). The second hub () is slidably engaged to the first hub (). A second spring (), concentric to the first hub () and sized to fit around the second hub (), biases a third, ring-shaped hub () which is fitted over the second spring (). The third hub () is slidably engaged to the second hub () and to the inner wall () of the cylindrical depression (). The first hub (), the second hub (), and the third hub () are sized to accommodate media rolls of different sizes.

Growing community of inventors

Suzhou, China

Liuzhi Yang