To provide a dynamic damper which secures a function of suppressing resonance and is reduced in the occurrence of tap tone, and furthermore reduces a load on an elastic member.SOLUTION: The dynamic damper includes a weight, and the elastic member supporting the weight in a vibratable manner. The elastic member has a holding portion holding the weight, a connection portion extending from the holding portion and connected to a mounting member, and a protruded portion provided in such a way as to protrude from the holding portion. The protruded portion assumes a position separating a predetermined space from the abutment face of the mounting member in a free state in which outer force is not input to the dynamic damper, and hits the abutment face to be elastically deformed when the outer force is input to the dynamic damper to be displaced more than a predetermined space. The protruded portion has a first protruded portion protruded in the same direction as the extending direction of the connection portion.SELECTED DRAWING: Figure 1
【課題】共振を抑制する機能を確保しつつ、打音の発生を低減しつつ、弾性部材への負荷を低減するダイナミックダンパを提供する。【解決手段】ダイナミックダンパは、重錘と、重錘を振動可能に支持する弾性部材と、を備える。弾性部材は、重錘を保持する保持部と、保持部から延出して取付部材に連結する連結部と、保持部から突出するように設けられる突部と、を有する。突部は、ダイナミックダンパに外力が入力されていない自由状態において取付部材の当接面から所定間隔で離間した位置をとり、ダイナミックダンパに外力が入力されて所定間隔よりも大きく変位すると当接面に当たって弾性変形し、突部は、連結部の延出方向と同じ方向に突出する第1突部を有する。【選択図】図1
DYNAMIC DAMPER
ダイナミックダンパ
2024-06-20
Patent
Electronic Resource
Japanese