PROBLEM TO BE SOLVED: To manually perform a switching operation even if a free wheel hub mechanism of a four-wheel device vehicle cannot perform automatically the switching of the connection and disconnection of driven-side wheels and driven-side axles.SOLUTION: One end part of a cylindrical operation piece 38 which opposes an axial end part 11a of a front-side axle (driven-side axle) 11 in an axial direction is fit into an attachment hole 37 formed at a hub housing 17 so as to be turnable, a sleeve 41 which is slidably fit into an external periphery of the operation piece 38 at the other side is slidably and non-rotatably supported to the operation piece 38, an engagement groove 41b which obliquely extends to the axial direction is formed at the sleeve 41, a pin 43 which is inserted into the engagement groove 41b of the sleeve 41 is arranged at the operation piece 38, and a slide gear 19 attached to the front-side axle 11 can be engaged with an outer gear 18 attached to a front wheel (driven-side wheel) 13, or released therefrom by moving the sleeve 41 to the axial direction by manually turning the operation piece 38.SELECTED DRAWING: Figure 3
【課題】4輪駆動車のフリーホイールハブ機構が従動側車輪と従動側車軸の接続と切断との切り替えを自動的に行えなくなっても、その切替動作を手動で行えるようにする。【解決手段】前側車軸(従動側車軸)11の軸端部11aと軸方向で対向する円筒状の操作片38の一端部を、ハブハウジング17に設けた取付孔37に回動自在に嵌め込み、その操作片38の他端側の外周に摺動自在に嵌め込まれるスリーブ41を操作片38に対してスライド自在かつ相対回転不能に支持し、そのスリーブ41に軸方向に対して斜めに延びる係合溝41bを設けるとともに、操作片38にスリーブ41の係合溝41bに挿入されるピン43を設け、操作片38を手動で回動させて、スリーブ41を軸方向に移動させることにより、前側車軸11に取り付けたスライドギヤ19を前輪(従動側車輪)13に取り付けたアウタギヤ18と噛み合わせたり、その噛合を解除したりできるようにした。【選択図】図3
FREE WHEEL HUB MECHANISM
フリーホイールハブ機構
2016-12-22
Patent
Electronic Resource
Japanese
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