PROBLEM TO BE SOLVED: To provide an upright type grease slide front fork capable of improving durability of a guide bushing.SOLUTION: This invention relates to an upright type grease slide front fork 1 in which a part of an inner tube 3 at a vehicle side is inserted from above into an outer tube 2 at an axle side, the inner tube 3 is supported by guide bushings 4, 5 fitted to an upper part and a lower part of an inner circumference of the outer tube 2 in such a manner that the inner tube 3 can be slid upwardly and downwardly, the inner tube 3 is fixed to a vehicle body by an upper bracket 6 fastened to a cap 8 fixed to its upper end inner circumferential part and an attenuation force is generated by a frictional resistance between the guide bushings 4, 5 slidably contacted to each other through grease and the inner tube 3, a maze aspiration communication passage 11 constituted by including a communication passage 8b passed through a part of the cap 8 is formed just below the upper bracket 6 and the inner part of the inner tube 3 is communicated with the surrounding atmosphere through the aspiration communication passage 11.
【課題】ガイドブッシュの耐久性の向上を図ることができる正立型グリス摺動フロントフォークを提供すること。【解決手段】車軸側のアウタチューブ2の内部に車体側のインナチューブ3の一部を上方から挿入し、アウタチューブ2の内周の上下に嵌着されたガイドブッシュ4,5によってインナチューブ3を上下摺動可能に支持するとともに、該インナチューブ3を、その上端内周に固着されたキャップ8に結着されたアッパブラケット6によって車体側に取り付け、グリスを介して互いに摺接するガイドブッシュ4,5とインナチューブ3との摩擦抵抗によって減衰力を発生する正立型グリス摺動フロントフォーク1において、前記キャップ8の一部に貫設された連通路8bを含んで構成される迷路状の呼吸連通路11を前記アッパブラケット6の直下に形成し、該呼吸連通路11を介して前記インナチューブ3の内部と外気とを連通させる。【選択図】図2
UPRIGHT TYPE GREASE SLIDE FRONT FORK AND WHEEL SUSPENSION DEVICE WITH UPRIGHT GREASE SLIDE FRONT FORK
正立型グリス摺動フロントフォークとこれを備える車輪懸架装置
2015-10-05
Patent
Electronic Resource
Japanese
UPRIGHT FRONT FORK AND WHEEL SUSPENSION DEVICE WITH UPRIGHT FRONT FORK
European Patent Office | 2015
|UPRIGHT TYPE FRONT FORK AND WHEEL SUSPENSION DEVICE WITH UPRIGHT TYPE FRONT FORK
European Patent Office | 2015
|