The ideation of the toy spurs originally from the Fisher Price Corn Popper toy, which uses a pushing technique that causes a popping motion of the plastic balls inside the clear dome. I took the working mechanism from the original toy and switched up the dome shape design of the Corn Popper by adding a more personable and kid-friendly 'ice cream truck man' character to it.
Step 1: Popping Mechanism
4. Plastic Shaft
The corn popper toy has a very basic “popping mechanism”. It consists of a linkage, spring, platform, plastic shaft, an axle which is attached to the wheel. The spring and linkage would be placed inside the indented housing on the platform then enclosed in place with the plastic shaft (through the key-hole shape on the linkage).
The wheel axle has a slight indentation in the center that when turned, would catch a small, spring loaded linkage at the center of the body. Therefore, when the toy is activated, or pushed on ground, it would cause the indentation of the axle to rotate and catch onto the hook of the linkage as shown in the image. Once the axle makes its way around 180 degrees opposite, the linkage would release from the indentation of the axle, causing it in reaction to make the popping motion.