To provide a saddle swing device allowing a stable riding posture to be maintained for a three-wheel bicycle holding an upright posture without overturn even when getting thereon in a stopped state, where an unstable riding posture is created by tilting of the three-wheel bicycle along a road slope on the left and right.SOLUTION: A saddle swing device is configured to hold a body upright by swinging a saddle 3 according to tilting of a three-wheel bicycle while swinging vertically both of left and right sides by suppressing motion of the center part of the saddle 3 in a left/right direction to prevent the body of the riding from swinging laterally around a reference point of swing which is set at a central uppermost part of the saddle 3 for an intersection point 5 of a center line 51 of a support column and a center line 52 of a swingable fitting, which is made by connecting flat belt idlers 12L, 12R fixed on both ends of an upper part of the support column 11 connected through a retainer 2 and flat belt idlers 12L, 12R fixed on both ends of the swingable fitting 14 connected to a support rail 34 inside of the saddle 3 with link pieces 13L, 13R on a seat post 4.SELECTED DRAWING: Figure 12
【課題】停車状態の乗車でも転倒することなく、直立姿勢が保持できる三輪自転車等は、左右の道路勾配に沿って車体が傾斜し、不安定な乗車姿勢となる為、安定した乗車姿勢が保てるサドル揺動装置を提供する。【解決手段】シートポスト4に、保持具2を介して接続された支柱11の上部両端に固着された平ベルト用アイドラー12L,12Rと、サドル3の内部の支持レール34に接続された揺動金具14の両端に固着された平ベルト用アイドラー12L,12Rが、リンク片13L,13Rで連結され、支柱の中心線51と、揺動金具の中心線52の揺動時の交点5がサドル3の中心最上部の位置に設定されて、揺動の基点となり、サドル3の中心部は左右への動きが抑止され、左右両サイドは上下に揺動し、乗車者の身体は横揺れすることなく、車体の傾斜に合わせ、サドル3を揺動させ、身体を垂直に保つことが可能な構造。【選択図】図12
SADDLE SWING DEVICE
サドル揺動装置
2023-11-22
Patent
Electronic Resource
Japanese