公开(公告)号：EP2832632A1

公开(公告)日：2015-02-04

申请号：EP14179014.7

申请日：2014-07-29

申请人： Landscape Adventures SNC di Dal Col Alberto e Pozzatello Giulio

发明人： Pozzatello, Giulio ,  Dal Col, Alberto

IPC分类号： B62M9/136 ,  B62J13/00 ,  B62J13/02 ,  B62M9/00

CPC分类号： B62M9/136 ,  B62J13/00 ,  B62J13/02 ,  B62M2009/002

摘要： The present invention relates to a chain guide device (10) for gravity or all-mountain bicycles comprising a frame (11) and a toothed chainring (12) on which the pedals are mounted.
The chain guide device (10) is intended to be positioned coupled with the chainring (12) in such a way as to prevent the chain (14) of the bicycle from coming off the teeth of the chainring (12).
The chain guide device (10) comprises: a top guide (20) intended during use to be positioned along the top portion of the chainring (12) and provided with a first groove (22); a bottom guide (30) intended during use to be positioned in the vicinity of the bottom portion of the chainring (12) and provided with a second groove (32); said top guide (20) and said bottom guide (30) being arranged on a support (40) by means of which the chain guide device (10) is fixed to the frame (11) of the bicycle.
In accordance with the invention, the first groove (22) and the second groove (32) interact directly with portions of the chain (14) which are directly engaged with the chainring (12), coming into contact with the chain only if the chain tends to disengage from the teeth of the chainring.

摘要翻译： 本发明涉及一种用于重力或全山地自行车的链条引导装置（10），其包括框架（11）和安装踏板的齿形链轮（12）。 链条引导装置（10）旨在以与防止链条（14）脱离链轮（12）的齿的方式定位成与链轮（12）联接。 链条引导装置（10）包括：顶部引导件（20），其用于沿着链轮（12）的顶部部分定位并设置有第一凹槽（22）; 用于在使用期间定位在链轮（12）的底部附近并设置有第二凹槽（32）的底部引导件（30）; 所述顶部引导件（20）和所述底部引导件（30）布置在支撑件（40）上，链条引导装置（10）通过该导向装置固定到自行车的框架（11）。 根据本发明，第一凹槽（22）和第二凹槽（32）直接与链条（14）的与链条（12）直接接合的部分相互作用，只有当链条 倾向于脱离链齿的齿。