| 摘要 |
PURPOSE:To perform an adjustment of the angle of a blocking member by a low-load external force by a method wherein lip parts are formed on the sides of the outer and inner diameters of an X-ring in such a way that the configuration of the section of the X-ring is formed into an X shape and acute abutting faces are respectively formed on each lip part. CONSTITUTION:An X-ring 11 is installed in a packing groove 10 formed horizontally on the side surface of a blocking member 2. Acute working faces P1 and P2 are respectively formed on inner diameter side lip parts 12a and 12b of the ring 11 and are molded in parallel to the axial direction of the ring 11 in such a way as to adhere to the bottom part of the packing groove 10 provided on the member 2. Acute abutting faces Q1 and Q2 are respectively formed on outer diameter side lip parts 13a and 13b and are molded in such a way as to bond to a container's opening part 1 having a curvature (r). Whereupon, ones to bond to the container's opening part 1 in the ring 11 are the abutting faces Q1 and Q2 only and the distribution of the surface pressures of the bonding parts concentrates on the abutting face Q2. As a result, an adjustment of the angle of the member 2 can be performed by a low-load external force. |
