Patent ID: 7269900

Claim:
An assembly method of a plurality of types of vehicle bodies for assembling main parts and subparts onto vehicle bodies on a single main line while conveying the vehicle bodies comprising the steps of: assembling in a main process, first main parts which are common to all types of vehicle bodies, and second main parts which are not common to all types of vehicles but whose assembly can be accommodated in the main process by absorbing a difference in assembly man-hours required for the assembly of only the first main parts and the assembly man-hours required for the assembly of the first and second main parts depending on the vehicle type; assembling in a subprocess, third main parts which are not common to all types of vehicles and whose assembly cannot be accommodated in the main process by absorbing the difference in assembly man-hours required for the assembly of only the first main part and the assembly man-hours required for the assembly of the first and third main parts due to the vehicle type, as a unit of parts; supplying to the main process, first subparts which can be assembled synchronously with the main line, after assembly in a sub-main process; storing after assembling in a non-synchronous parts area, second subparts which cannot be assembled synchronously with the main line, and said third main parts whose assembly cannot be accommodated by absorbing the difference in man-hours depending on the vehicle type; and supplying said second subparts to the sub-main process and said third main parts to the main process.