Boot structure with communicating passage for universal joint

摘要

A structure is disclosed for preventing water or the like from intruding in a boot for a universal joint which includes: a communication passage (55) for communicating inner and outer portions of the boot, the communication passage being provided in an end surface of a fitting portion of the boot sealing a connecting space of the universal joint to a member to be mounted at a time of fitting and attaching one end portion of the boot to the member to be mounted, wherein a protruding shielding (61A) portion opposing to the end surface of the fitting portion is provided in a close attached portion of the end surface of the fitting portion of the boot in the member to be mounted. <IMAGE>