公开(公告)号：US06460939B1

公开(公告)日：2002-10-08

申请号：US09101380

申请日：1998-07-09

Applicant: Ivo Joanna Hubert Claes

Inventor： Ivo Joanna Hubert Claes

IPC: B60B2100

CPC classification number: B60B21/025 ,  B60B21/026 ,  B60B21/04 ,  B60B21/062 ,  B60B21/08 ,  B60B21/104 ,  B60Y2200/13

Abstract: A bicycle wheel rim can be worn down by rim brakes, leading to serious accidents. The present invention relates to a novel bicycle rim that provides direct and clear indication to a rider when a braking surface on the rim has been worn off. The novel bicycle rim comprises a base portion, two lateral flanks forming an outer braking surface, and a longitudinal hole. The braking surface has a first portion and a second portion. The first portion of the braking surface has a thickness that is designed to be worn off down to the longitudinal hole so as to form a visible slit, while the second portion, situated radially outwards with respect to the first portion, has a thickness such as to prevent deformations of the second portion when the first portion is worn off down to the longitudinal hole.

Abstract translation: 自行车轮辋可能被轮辋制动器磨损，导致严重事故。 本发明涉及一种新型的自行车轮辋，其在轮辋上的制动表面已经磨损时向骑手提供直接和清晰的指示。 新型自行车轮辋包括基部，形成外部制动表面的两个侧向侧面和纵向孔。 制动表面具有第一部分和第二部分。 制动表面的第一部分具有被设计成向下穿过纵向孔以便形成可见狭缝的厚度，而相对于第一部分径向向外定位的第二部分具有如 以防止当第一部分磨损到纵向孔时第二部分的变形。