公开(公告)号：US20160250890A1

公开(公告)日：2016-09-01

申请号：US14633260

申请日：2015-02-27

Applicant: ENVE Composites, LLC

Inventor： Simon Smart

IPC: B60B21/02 ,  B60B1/00

CPC classification number: B60B21/025 ,  B60B1/003 ,  B60B5/02 ,  B60B21/02 ,  B60B2900/1216 ,  Y02T10/88

Abstract: A bicycle rim is configured to reduce drag as well as enhance steering stability, such as in gusty and/or high cross wind conditions. The rim includes a leading edge where the rim interfaces with a tire, and a sidewall extends from the leading edge. The rim includes a spoke face where one or more spokes extend from the bicycle rim. A reflexed blend portion is disposed between the sidewall and the spoke face. The reflexed blend portion allows the sidewall to have increased camber which lowers pressure drag. At the same time, the reflexed blend portion allows the spoke face to have a larger radius so as to provide greater steering stability, such as in gusty and/or high cross wind conditions.

Abstract translation: 自行车轮辋构造成减小阻力以及增强操纵稳定性，例如在阵风和/或高交叉风条件下。 边缘包括前缘，其中边缘与轮胎接合，并且侧壁从前缘延伸。 轮缘包括辐条面，其中一个或多个辐条从自行车轮缘延伸。 反射混合部分设置在侧壁和轮辐面之间。 反射混合部分允许侧壁具有增加的弯度，这降低了压力阻力。 同时，反射混合部分允许轮辐面具有更大的半径，以便提供更大的操纵稳定性，例如在阵风和/或高交叉风条件下。

公开(公告)号：US09770944B2

公开(公告)日：2017-09-26

申请号：US14633260

申请日：2015-02-27

Applicant: ENVE Composites, LLC

Inventor： Simon Smart

IPC: B60B21/02 ,  B60B5/02 ,  B60B1/00

CPC classification number: B60B21/025 ,  B60B1/003 ,  B60B5/02 ,  B60B21/02 ,  B60B2900/1216 ,  Y02T10/88

Abstract: A bicycle rim is configured to reduce drag as well as enhance steering stability, such as in gusty and/or high cross wind conditions. The rim includes a leading edge where the rim interfaces with a tire, and a sidewall extends from the leading edge. The rim includes a spoke face where one or more spokes extend from the bicycle rim. A reflexed blend portion is disposed between the sidewall and the spoke face. The reflexed blend portion allows the sidewall to have increased camber which lowers pressure drag. At the same time, the reflexed blend portion allows the spoke face to have a larger radius so as to provide greater steering stability, such as in gusty and/or high cross wind conditions.

公开(公告)号：US09457618B2

公开(公告)日：2016-10-04

申请号：US14298234

申请日：2014-06-06

Applicant: ENVE Composites, LLC

Inventor： Simon Smart

IPC: B60B21/02 ,  B60B1/00

CPC classification number: B60B21/02 ,  B60B1/003 ,  B60B21/025 ,  B60B2900/1216 ,  B60Y2200/13 ,  Y02T10/88

Abstract: Embodiments described herein improve airflow around bicycle wheels by providing for one or more of: (1) a optimum leading edge width of a rim for preventing early stall in cross winds, while still allowing for sufficient stability without undue drag, while not unnecessarily increasing the rotating wheel and drag on the frame; (2) a sidewall shape with a subtle camber angle at the leading, which defines a rate of radius change at the max width of the rim—which further defines the max width and placement along the chord length for optimizing the aerodynamic properties of the rim; (3) a continuous rate of change of curvature at a spoke face, which fundamentally improves the performance and stability by generating a side force at higher yaw angles; and (4) wheel sets with a wider front rim relative to a narrower rear wheel to assist in flow attachment in high crosswind areas.

Abstract translation: 本文描述的实施例通过提供以下中的一个或多个来提供自行车车轮周围的气流：（1）用于防止交叉风中的早期失速的边缘的最佳前缘宽度，同时仍然允许足够的稳定性而不会有过度阻力，同时不会不必要地增加 旋转轮子并拖动在框架上; （2）在前缘处具有微小外倾角的侧壁形状，其限定在轮辋的最大宽度处的半径变化率，其进一步限定最大宽度和沿着弦长的位置，以优化轮辋的空气动力特性 ; （3）轮辐面的连续的曲率变化率，通过在较高的偏转角度下产生侧力，从根本上改善了性能和稳定性; 和（4）相对于较窄的后轮具有较宽的前缘的轮组，以帮助在高侧风区域中的流动附接。

公开(公告)号：US20140284995A1

公开(公告)日：2014-09-25

申请号：US14298234

申请日：2014-06-06

Applicant: ENVE Composites, LLC

Inventor： Simon Smart

IPC: B60B21/02 ,  B60B1/00

CPC classification number: B60B21/02 ,  B60B1/003 ,  B60B21/025 ,  B60B2900/1216 ,  B60Y2200/13 ,  Y02T10/88

Abstract: Embodiments described herein improve airflow around bicycle wheels by providing for one or more of: (1) a optimum leading edge width of a rim for preventing early stall in cross winds, while still allowing for sufficient stability without undue drag, whilst not unnecessarily increasing the rotating wheel and drag on the frame; (2) a sidewall shape with a subtle camber angle at the leading, which defines a rate of radius change at the max width of the rim—which further defines the max width and placement along the chord length for optimizing the aerodynamic properties of the rim; (3) a continuous rate of change of curvature at a spoke face, which fundamentally improves the performance and stability by generating a side force at higher yaw angles; and (4) wheel sets with a wider front rim relative to a narrower rear wheel to assist in flow attachment in high crosswind areas.

Abstract translation: 本文所述的实施例通过提供以下中的一个或多个来提供自行车车轮周围的气流：（1）用于防止交叉风中的早期失速的边缘的最佳前缘宽度，同时仍然允许足够的稳定性而没有不必要的阻力，同时不会不必要地增加 旋转轮子并拖动在框架上; （2）在前缘处具有微小外倾角的侧壁形状，其限定在轮辋的最大宽度处的半径变化率，其进一步限定最大宽度和沿着弦长的位置，以优化轮辋的空气动力特性 ; （3）轮辐面的连续的曲率变化率，通过在较高的偏转角度下产生侧力，从根本上改善了性能和稳定性; 和（4）相对于较窄的后轮具有较宽的前缘的轮组，以帮助在高侧风区域中的流动附接。