SEALING MEMBER FOR AUTOMATIC TRANSMISSION

摘要

PURPOSE: A sealing member for an automatic transmission is provided to prevent the sealing member from interfering in an outer radial direction in a state of the sealing member inserted into a sleeve by including an inner supporting protrusion to an inner diameter part. CONSTITUTION: A ring body(21) prevents the loss of operating fluid. A part of the ring body is cut and cross sections(22) facing each other. A pair of protrusion parts(23) is protruded for each side to surface contact. A combining protrusion(231) is protruded from the protrusion part of one side at a width narrower than the width of the protrusion part. A combining groove(232) is formed at the protrusion part of the other side. The combining protrusion is inserted into the combining groove.