VEHICULAR PROPULSION SHAFT

• Main Author: KONDO TOMOYA
• Format: Patent
• Language: English; Japanese
• Published: 04.07.2019
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

To provide a vehicular propulsion shaft which improves productivity and allows an intermediate bearing to be disengaged in a frontal collision.SOLUTION: A vehicle propulsion shaft 100 of the present invention formed by connecting a plurality of pipe members divided in the front and back by a universal joint, comprises: an intermediate bearing body 20 rotatably supporting a shaft member 10 of a universal joint; and a torsional damper 30 disposed in front of the intermediate bearing body 20. The intermediate bearing body 20 comprises: a bearing 21 externally fitted to the shaft member 10; a vibration isolation member 22 externally fitted to the bearing 21; an annular part 23 to which an outer ring 22b of the vibration isolation member 22 is internally fitted; and a bracket 24 joined to the annular part 23 and having legs pointing to the left and right. The torsional damper 30 includes a large diameter part 34 formed larger than an outer diameter R1 of the outer ring 22b.SELECTED DRAWING: Figure 2 【課題】生産性の向上を図りつつ、前方衝突時に中間軸受が離脱する車両用推進軸を提供することを目的とする。【解決手段】本発明は、前後に分割された複数のパイプ材を自在継手により接続してなる車両用推進軸１００であって、自在継手の軸部材１０を回転自在に支持する中間軸受体２０と、中間軸受体２０の前方に配置されたトーショナルダンパ３０とを備え、中間軸受体２０は、軸部材１０に外嵌された軸受２１と、軸受２１に外嵌された防振部材２２と、防振部材２２の外環２２ｂが内嵌される円環部２３と、円環部２３と接合し、左右に指向する脚部を有するブラケット２４と、を備え、トーショナルダンパ３０は、外環２２ｂの外径Ｒ１よりも大径に形成された大径部３４を備えていることを特徴とする。【選択図】図２