SUPPORT STRUCTURE OF ELASTIC BUSH

• Main Authors: FUKUMOTO YASUAKI, FURUSE TOMOHIRO, AKIYAMA SATORU, NAKATAKE KIYOHITO
• Format: Patent
• Language: English; Japanese
• Published: 10.03.2022
• Subjects: PERFORMING OPERATIONS; TRANSPORTING; VEHICLE SUSPENSION ARRANGEMENTS; VEHICLES IN GENERAL

To provide a support structure of an elastic bush with enhanced reliability of a fastening portion, with a simple structure.SOLUTION: A support structure of an elastic bush 100 comprises: an elastic body 130, which is formed in a cylindrical shape and an outer peripheral surface portion of which is connected to a supporting object member 50; and a fastening member 120 held on an inner peripheral surface of the elastic body and fastened to a base portion 10. The fastening member is fixed to the base portion, by fastening of a protruding portion 121 protruding from an end face of the elastic body to a fastening object portion 14 formed in the base portion. A contact surface 123 contacting the fastened portion, of the protruding portion is formed as a convex surface such as a convex curved surface having an arc shape eccentric to a side opposite to the fastening object portion side with respect to a central axis when viewed from a central axis direction of the elastic body. A contact surface 15 contacting the protruding portion, of the fastening object portion is formed as a concave surface in surface contact with the convex surface of the protruding portion.SELECTED DRAWING: Figure 3 【課題】簡素な構造により締結箇所の信頼性を向上した弾性体ブッシュの支持構造を提供する。【解決手段】筒状に形成されるとともに外周面部に被支持部材５０が接続される弾性体１３０と、弾性体の内周面に保持されるとともに基部１０に締結される締結部材１２０とを有する弾性体ブッシュ１００の支持構造を、締結部材は、弾性体の端面から突出した突出部１２１を、基部に形成された被締結部１４に締結することで基部に固定され、突出部における被締結部との接触面１２３は、弾性体の中心軸方向から見たときに中心軸に対して被締結部側とは反対側に偏心した円弧状となる凸曲面などの凸面に形成され、被締結部における突出部との接触面１５は、突出部の凸面と面接触する凹面に形成される構成とする。【選択図】図３