公开(公告)号：US5163884A

公开(公告)日：1992-11-17

申请号：US694094

申请日：1991-05-01

申请人： Kikuzo Takamiya ,  Yoshitaka Tamura ,  Nobuaki Shimada ,  Kiyofumi Hirai

发明人： Kikuzo Takamiya ,  Yoshitaka Tamura ,  Nobuaki Shimada ,  Kiyofumi Hirai

IPC分类号： F16H15/06 ,  F16H15/14 ,  F16H15/22 ,  F16H37/02 ,  F16H37/08

CPC分类号： F16H15/14 ,  F16H37/0853

摘要： A friction-type stepless speed change device includes a frictional transmission elements composed of a pair of driving discs connected to an input shaft, and an annular driven disc connected to an output shaft and embraced between and urged against opposite conical surfaces of the driving discs into wedge-engagement to generate frictional force and allow power transmission from the driving discs to the driven disc. The driving discs are at a variable eccentricity relative to the driven disc, with which an effective pitch diameter of the driving discs is varied to effect a stepless speed change. For reducing the size of the frictional transmission elements while preserving a required torque capacity, the device further comprises a driving rotary unit for transmitting power from the input shaft to the driving discs at an increased rotational speed, and a driven rotary unit for transmitting power from the driven disc to the output shaft at a reduced rotational speed.

公开(公告)号：US5370411A

公开(公告)日：1994-12-06

申请号：US959912

申请日：1992-10-13

申请人： Kikuzo Takamiya ,  Nobuaki Shimada ,  Akira Dohi ,  Kazuyoshi Eshima

发明人： Kikuzo Takamiya ,  Nobuaki Shimada ,  Akira Dohi ,  Kazuyoshi Eshima

IPC分类号： B62K25/30 ,  B62K25/20

CPC分类号： B62K25/30

摘要： A bicycle frame assembly including a shock absorbing system associated with a rear wheel. The frame assembly comprises a main frame section, chain stays, seat stays and a rocker arm element, which are combined with each other to form a four-link mechanism that is movable within a vertical plane including the main frame section. A shock absorbing device is arranged between the rocker arm element and the main frame body, for absorbing shocks transmitted from the rear wheel to the main frame section when the frame assembly is in use.

摘要翻译： 一种自行车车架组件，包括与后轮相关联的减震系统。 框架组件包括主框架部分，链条撑杆，座椅撑杆和摇臂元件，它们彼此组合以形成可在包括主框架部分的垂直平面内移动的四连杆机构。 在摇臂元件和主框体之间设有减震装置，用于当框架组件使用时吸收从后轮传递到主框架部分的冲击。

公开(公告)号：US4579360A

公开(公告)日：1986-04-01

申请号：US617391

申请日：1984-06-05

申请人： Ritsuo Nishimura ,  Nobuaki Shimada

发明人： Ritsuo Nishimura ,  Nobuaki Shimada

IPC分类号： B62K15/00

CPC分类号： B62K15/006 ,  Y10T403/32368

摘要： A foldable bicycle frame includes a substantially vertical center tube at a mid portion of a bicycle frame, an upper center tube and a lower center tube to be partially fitted in upper and lower ends of the center tube, respectively. A front half of the bicycle frame includes the center tube and a rear half of the bicycle frame include the upper and lower center tubes, thereby enabling the front and rear halves to be folded or extended about the vertical center tube into a folded position or running position. The bicycle frame comprises radially annularly arranged continuous V-shaped teeth on connection surfaces of the upper and lower center tubes and the center tubes, and clamping means for clamping the center tube and the upper and lower center tubes in engagement with the teeth on the connection surfaces, thereby enabling the bicycle frame to be folded or extended by releasing and then clamping the center tubes. The bicycle frame according to the invention further comprises positioning means for positioning the front and rear halves in the folded and extended positions, lever means for fixing the halves by one operation, and locking means for the lever to avoid a risk of releasing the clamp of the halves when running.

摘要翻译： 可折叠的自行车车架包括在自行车车架的中部处的基本上垂直的中心管，上中心管和下中心管，以分别部分地装配在中心管的上端和下端。 自行车车架的前半部分包括中心管，并且自行车车架的后半部分包括上中心管和下中心管，从而使得前半部和后半部能够围绕垂直中心管折叠或延伸到折叠位置或运行 位置。 自行车车架包括在上中心管和下中心管和中心管的连接表面上的径向环形排列的连续的V形齿，以及用于夹持中心管和上中心管和下中心管的夹持装置，该连接表面与连接件上的齿接合 从而使自行车车架通过释放并夹紧中心管而被折叠或延伸。 根据本发明的自行车车架还包括用于将前半部和后半部定位在折叠和延伸位置的定位装置，用于通过一次操作来固定半部的杠杆装置，以及用于杠杆的锁定装置，以避免释放夹具 运行时的一半。