PROBLEM TO BE SOLVED: To provide a shock absorber which freely changes secondary damping force according to a stroke position of the shock absorber, and to provide a front fork.SOLUTION: A shock absorber includes: a cylinder 3; a rod 5 movably inserted into the cylinder 3; an inner tube 2 provided at an outer periphery of the cylinder 3; a partition member 33 which is fixed to the cylinder 3 and divides a space formed between the cylinder 3 and the inner tube 2 into an upper chamber L40 and a lower chamber L41; a passage 33d which is formed at the partition member 33 and allows the upper chamber L40 and the lower chamber L41 to communicate with each other; and a rotary valve 7 which is rotatably laminated on the partition member 33, faces the passage 33d, and changes an opening area of the passage 33d when rotating in conjunction with movement of the rod 5.SELECTED DRAWING: Figure 2
【課題】 二次減衰力を緩衝器のストローク位置に応じて自由に変更できる緩衝器及びフロントフォークを提供する。【解決手段】 シリンダ3と、シリンダ3内に移動可能に挿入されるロッド5と、シリンダ3の外周に設けたインナーチューブ2と、シリンダ3に対して固定されてシリンダ3とインナーチューブ2との間に形成される空間を上室L40と下室L41に区画する仕切部材33と、仕切部材33に形成されて上室L40と下室L41を連通する流路33dと、仕切部材33に回転自在に積層されて流路33dに対向し、ロッド5の移動に連動して回転すると、流路33dの開口面積を変更するロータリバルブ7とを備える。【選択図】 図2
SHOCK ABSORBER AND FRONT FORK
緩衝器及びフロントフォーク
2017-01-19
Patent
Electronic Resource
Japanese