Via the analysis of the end structure of passenger cars in our country,measures to avoid clearances in operation of rubber vestibule diaphragms for passenger cars are put forward.

• 介绍了客车橡胶风挡间隙的产生原因,通过对我国客车端部结构的分析,提出了解决客车橡胶风挡运用中产生间隙的措施。