Size-changeable coin bank

Abstract

A size-changeable coin bank for counting coins comprises a main body having a cylinder with a coin slot and a funnel with a coin slot, the funnel screw-jointed to the cylinder, a counting cylinder inserted into the funnel and moved up and down, the counting cylinder having an open bottom, a scale marked on the outer surface and a metal lid attached to the top surface, wherein coins are inserted into the counting cylinder through the metal lid, and an ornament attached to the metal lid screw-jointed to the counting cylinder and having a metal coin. Herein the size of the coin bank is changeable by moving the counting cylinder up and down. The main body and/or the counting cylinders are polygonal. The cylinder, the funnel and the counting cylinders are made of a transparent material, and an advertisement paper or film is inserted into the inner or attached to the outer of the cylinder, the funnel and the counting cylinders. The coin bank further comprises a sensor or an IC chip for making a sound and lighting.

Dependencies are inferred from the claim text.