Snug fitting apparatus for tire assembly and method of manufacturing it using snug fitting

A snug fitting apparatus for improving the finished quality of a tire assembly 1 without sacrificing productivity, including a first pressing member 25 (25a) adapted to be pressed against the ground contact surface F of a tire assembly 1 and a second pressing member 25 (25b) adapted to be pressed against the ground contact surface F to receive the radial reactional force of the ground contact surface F. Measuring device is provided to read variation in the reactional force. As a result, a large, expensive uniformity checking machine is made unnecessary, making it possible to assure quality for all the quantity of tire assemblies 1 on the production line and to fully automate the process.