PROBLEM TO BE SOLVED: To improve riding comfort for a rider against self-excited vibration occurring in a vehicle body.SOLUTION: A front fork 11A includes: a flow passage hole formation part (30) that vibrates at the same phase as an attenuation force generator (28), and in which a pressure side flow passage hole (44a), an intermediate flow passage hole (44b) and an expansion side flow passage hole (44c) communicating with the attenuation force generator (28) are formed; and a flow passage change part (31) vibrating at a different phase from the attenuation force generator (28) according to self-excited vibration generated in the attenuation force generator (28), and communicating two of at least the three flow passage holes.SELECTED DRAWING: Figure 4
【課題】車体に発生する自励振動に対するライダーの乗り心地を改善する。【解決手段】フロントフォーク(11A)は、減衰力発生装置(28)と同位相に振動すると共に減衰力発生装置(28)と連通される圧側流路孔(44a)、中間流路孔(44b)、及び伸側流路孔(44c)が形成された流路孔形成部(30)と、減衰力発生装置(28)に発生した自励振動に応じて減衰力発生装置(28)と異なる位相で振動して、前記少なくとも3つの流路孔のうちの2つを連通させる流路変更部(31)とを備える。【選択図】図4
BUFFER
緩衝器
2017-10-05
Patent
Electronic Resource
Japanese