Inclined angular adjustment of catch basin access door

摘要

(57) Abstract Objective The joint opening section where the tube-like object of the top and bottom each step inclines preparationObtaining, each tube-like object by facing turns inclination the topThe inclined angular adjustment equipment of the catch basin access door which angle that tries changesIn the position, when turning each tube-like object, the guide aspect antiIn allocating the separate aspect with to the bearing surface of the water sealant the tsute, both of smooth Characteristic and waterproof seal performance of revolution of each tube-like objectIt improves. Constitution Lower position joint opening section that of 12 and upper joint opening section 52To form the even meting face 13,53 in the re, the lower position joint openingWaterproof sealant 2 is provided on the meting face 13 of section 12. Each conjunctionThe rise cylindrical surface 15 which is provided in the rim edge of the wa se aspect 13,53,55 is designated as the guide aspect when turning.