公开(公告)号：US06202813B1

公开(公告)日：2001-03-20

申请号：US08789435

申请日：1997-01-27

Applicant: Yasuhiro Yahata ,  Koshi Tabe

Inventor： Yasuhiro Yahata ,  Koshi Tabe

IPC: F16D4130

CPC classification number: B60B27/0005 ,  B60B27/023 ,  B60B27/047 ,  F16D41/30 ,  Y10T74/2135

Abstract: A ratchet mechanism for a bicycle hub includes a first hub member and a second hub member, wherein the first hub member and the second hub member are rotatable relative to each other. A pawl is supported by the first hub member, a ratchet tooth is supported by the second hub member, and a biasing mechanism is provided for biasing the pawl toward the ratchet tooth. A pawl control mechanism is responsive to relative rotation of the first hub member and the second hub member for allowing the pawl to contact the ratchet tooth when the first hub member and the second hub member rotate relative to each other in one direction and for preventing the pawl from contacting the ratchet tooth when the first hub member and the second hub member rotate relative to each other in an opposite direction.

Abstract translation: 用于自行车轮毂的棘轮机构包括第一轮毂构件和第二轮毂​​构件，其中第一轮毂构件和第二轮毂​​构件可相对于彼此旋转。 棘爪由第一轮毂构件支撑，棘齿由第二轮毂构件支撑，并且设有用于将棘爪朝向棘齿偏压的偏置机构。 棘爪控制机构响应于第一轮毂构件和第二轮毂​​构件的相对旋转，用于当第一轮毂构件和第二轮毂​​构件在一个方向上相对于彼此旋转时允许棘爪接触棘齿，并且用于防止 当所述第一轮毂构件和所述第二轮毂构件沿相反方向相对于彼此旋转时，所述棘爪与所述棘轮齿接触。

公开(公告)号：US06666786B2

公开(公告)日：2003-12-23

申请号：US09878793

申请日：2001-06-11

Applicant: Yasuhiro Yahata

Inventor： Yasuhiro Yahata

IPC: F16H5536

CPC classification number: B62M9/105

Abstract: A chamfered sprocket assembly for facilitating the shifting of a drive chain from a larger sprocket to a smaller sprocket is disclosed. In a preferred embodiment, the chamfered sprocket assembly includes a sprocket having a plurality of chamfered portions on a side facing a smaller sprocket, each chamfered portion located between a pair of toothlike projections located on the rim of the sprocket body. The chamfered portions preferably include a crest which tapers toward a first edge and a second edge of the chamfer portion, respectively. The crest is preferably offset from the center of the chamfer portion toward the driving direction of the sprocket assembly. To further facilitate the shifting of the drive chain, the sprocket preferably includes a rounded shoulder to guide the movement of the drive chain. Finally, the friction between the toothlike projections and the drive chain is reduced by polishing the toothlike projections.

公开(公告)号：USD421951S

公开(公告)日：2000-03-28

申请号：US77396

申请日：1997-09-22

Applicant: Yasuhiro Yahata

Designer： Yasuhiro Yahata

公开(公告)号：US5882088A

公开(公告)日：1999-03-16

申请号：US784460

申请日：1997-01-16

Applicant: Yasuhiro Yahata

Inventor： Yasuhiro Yahata

IPC: B60B27/00 ,  B60B27/02 ,  B62M9/10 ,  B60B21/06

CPC classification number: B60B1/041 ,  B60B1/042 ,  B60B27/0078 ,  B60B27/026 ,  B62M9/10

Abstract: A bicycle hub apparatus is constructed of a hub shell and a plurality of spoke attachment parts disposed circumferentially about the hub shell at opposite end portions of the hub shell, wherein each spoke attachment part includes a first through hole and a second through hole. In each spoke attachment part, the first through hole is located at a different radial position relative to a central hub axis of the hub shell when compared to the second through hole.

Abstract translation: 自行车轮毂装置由轮毂壳和在轮毂壳的相对端部处围绕轮毂壳周向设置的多个轮辐连接部分构成，其中每个轮辐连接部分包括第一通孔和第二通孔。 在每个轮辐连接部分中，当与第二通孔相比时，第一通孔相对于毂壳的中心轮毂轴线位于不同的径向位置。