公开(公告)号：US3994167A

公开(公告)日：1976-11-30

申请号：US551414

申请日：1975-02-20

申请人： Lucien Charles Hippolyte Juy

发明人： Lucien Charles Hippolyte Juy

IPC分类号： B62M9/126 ,  F16H11/08 ,  F16H7/18 ,  F16H7/22

CPC分类号： B62M9/126

摘要： A speed change mechanism for a bicycle having a gear cluster of pinions on which a chain is selectively engaged, such as on a derailleur or the like, comprising a chain-tensioning system including at least one sprocket wheel engaging the chain, a transverse displacing mechanism coupled to the chain-tensioning system to shift the same and the chain on the pinions during speed change, and a cap member preferably including side parts straddling the sprocket wheel. The sprocket wheel is coupled to the transverse displacing mechanism for rotation about an axis and the cap member is connected to the transverse displacing mechanism such that the cap member has a fixed angular position relative to the axis. The cap member has front and rear side parts, the front side part being prolonged longitudinally towards the gear cluster to push and guide the chain proximate the pinions during speed change.

摘要翻译： 用于具有选择性地啮合链条的小齿轮齿轮组的自行车的变速机构，例如在拨链器等上，包括链条张紧系统，该链条张紧系统包括与链条啮合的至少一个链轮，横向移位机构 联接到链条张紧系统以在速度变化期间将相同和链条移动到小齿轮上，并且帽构件优选地包括跨越链轮的侧部。 链轮连接到横向移位机构，用于围绕轴线旋转，并且盖构件连接到横向移位机构，使得盖构件相对于轴线具有固定的角度位置。 盖构件具有前侧部分和后侧部分，前侧部分在纵向方向朝着齿轮组延伸，以在速度改变期间推动和引导靠近小齿轮的链条。

公开(公告)号：US3960025A

公开(公告)日：1976-06-01

申请号：US582424

申请日：1975-05-30

申请人： Lucien Charles Hippolyte Juy

发明人： Lucien Charles Hippolyte Juy

IPC分类号： B62M9/126 ,  F16H11/00 ,  F16H9/00 ,  F16H11/08

CPC分类号： B62M9/126

摘要： Push flange construction of a pivotal roller system of a speed change mechanism for a bicycle, the pivotal roller system having a pair of spaced flanges with at least one rotatable sprocket mounted therebetween on which a chain passes and is wound on a pinion of a gear cluster on the hub of the rear wheel of the bicycle. One of the flanges is a push flange operative to push the chain onto the pinions in the course of speed change when the roller system is transversely displaced, this flange including a peripheral prolongation at that extremity of the flange closest to the pinions of the gear cluster. The prolongation extends over a wide sector whose angular length is such as to allow contact with the chain and pushing thereof at a position closest to the pinions whatever the angular position of the roller system. The surface of the prolongation facing the chain is provided along the length of the sector with a wide profiled chamfer for contacting the chain. The prolongation can be integrally formed with the one flange as a one-piece body or it can be made as a detachable element which can be mounted on a conventional flange.

摘要翻译： 推动用于自行车的变速机构的枢转辊系统的凸缘结构，所述枢转辊系统具有一对隔开的凸缘，所述凸缘具有安装在其间的至少一个可旋转链轮，链条通过并且缠绕在齿轮组的小齿轮上 在自行车后轮的轮毂上。 法兰中的一个是当辊系统横向移位时在速度变化过程中将链条推动到小齿轮上的推动凸缘，该凸缘包括最靠近齿轮组的小齿轮的凸缘末端处的周边延长部 。 延长部分延伸在宽的扇形部分上，其角度的长度允许与链条接触并将其推到最靠近小齿轮的位置，无论辊系统的角位置如何。 沿链条的长度设置面向链条的延长部分的表面，并具有用于接触链条的宽型倒角。 延长部可以与一个凸缘一体地形成为整体，或者可以制成可以安装在常规凸缘上的可拆卸元件。