Seal member

摘要

A seal member made at a resilient material which allows a pass-through member 105 to pass through an opening 106 while opening a gap fanned between the pass-through member 105 and the opening 106 . The periphery of the opening 106 is made to constitute a wavy and annular sealing portion 117 which undulates in a direction in which the pass-through member 105 passes through the opening 106.