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1. 发明公开

EP3254945A1 DRIVE UNIT AND ELECTRIC-MOTOR-ASSISTED BICYCLE 有权
标题翻译：驱动装置和电动机辅助自行车
公开(公告)号：EP3254945A1
公开(公告)日：2017-12-13
申请号：EP17159316.3
申请日：2017-03-06
申请人： Yamaha Hatsudoki Kabushiki Kaisha
发明人： USAMI, Tomohiro
IPC分类号： B62M6/55 , F16D41/30 , B62M23/00
CPC分类号： F16D41/30 , B62K25/286 , B62K25/30 , B62M6/55 , B62M11/02 , B62M23/00 , F16D41/12 , F16D2041/0605
摘要： Time lag is reduced and, at the same time, an increase in the size of the one-way clutch is avoided and the operation of the one-way clutch is stabilized. The one-way clutch (233) includes an outer member (2331), an inner member (2332), a plurality of clutch lugs (233F), a plurality of springs (238), and a plurality of pins (237). The clutch teeth (233C) are provided on one of the inner peripheral portion (233B) of the outer member and the outer peripheral portion (233D) of the inner member. The clutch lugs are provided on the other of the inner peripheral portion and the outer peripheral portion. The springs are provided on the other of the inner peripheral portion and the outer peripheral portion. The number of clutch lugs is an even number not smaller than 4 (four). The number of clutch teeth is an even number that is not a multiple of the number of the clutch lugs. The number of springs is half the number of clutch lugs. Each spring is capable of exerting a biasing force on two of the clutch lugs that are adjacent as determined along the circumferential direction. Each pin is in contact with one of the springs.
摘要翻译：时间延迟减小，同时避免了单向离合器尺寸的增加，并且单向离合器的操作稳定。单向离合器233包括外部构件2331，内部构件2332，多个离合器凸耳233F，多个弹簧238以及多个销237。离合器齿233C设置在外侧部件的内周部233B和内侧部件的外周部233D中的一方上。离合器凸耳设置在内周部分和外周部分中的另一个上。弹簧设置在内周部分和外周部分中的另一个上。离合器接线片的数量是不小于4（4）的偶数。离合器齿数是偶数，不是离合器接线片数量的倍数。弹簧数量是离合器接线片数量的一半。每个弹簧能够对沿周向确定的相邻的两个离合器凸耳施加偏置力。每个销都与其中一个弹簧接触。

2. 发明授权

EP3239031B1 DRIVE UNIT AND ELECTRIC-MOTOR-ASSISTED BICYCLE 有权
公开(公告)号：EP3239031B1
公开(公告)日：2019-05-08
申请号：EP17159162.1
申请日：2017-03-03
申请人： Yamaha Hatsudoki Kabushiki Kaisha
发明人： UDA, Masatsugu , SUZUKI, Ryota , MANO, Yasunori , USAMI, Tomohiro
IPC分类号： B62M6/50 , F16D41/24 , B62M6/55 , B62M11/02

3. 发明公开

EP3441296A1 DRIVE UNIT AND ELECTRICALLY ASSISTED BICYCLE 有权
公开(公告)号：EP3441296A1
公开(公告)日：2019-02-13
申请号：EP18187708.5
申请日：2018-08-07
申请人： Yamaha Hatsudoki Kabushiki Kaisha
发明人： USAMI, Tomohiro
IPC分类号： B62M6/55 , B62M3/00
摘要： A drive unit (20) includes: a housing (21); a motor (25) accommodated in the housing; a crank shaft (22) extending through the housing along the right-left direction of the bicycle; and a pair of bearings (38L, 38R) rotatably supporting the crank shaft within the housing, each bearing including an inner ring (381) and an outer ring (382). The pair of bearings are a first bearing (38L) which is provided at one side of a thrust direction and a second bearing (38R) which is provided at another side along the thrust direction, the thrust direction being an axial direction of the crank shaft. The first bearing is disposed so as not to move along the thrust direction relative to the crank shaft. The drive unit has a movement restricting structure to restrict movement of the first bearing relative to the relative to the housing along the thrust direction.

4. 发明授权

EP3254945B1 DRIVE UNIT AND ELECTRIC-MOTOR-ASSISTED BICYCLE 有权
公开(公告)号：EP3254945B1
公开(公告)日：2019-07-24
申请号：EP17159316.3
申请日：2017-03-06
申请人： Yamaha Hatsudoki Kabushiki Kaisha
发明人： USAMI, Tomohiro
IPC分类号： B62M6/55 , F16D41/30 , B62M23/00 , B62K25/28 , B62K25/30 , B62M11/02 , F16D41/12 , F16D41/06

5. 发明授权

EP3441297B1 ELECTRICALLY ASSISTED VEHICLE HAVING A DRIVE UNIT AND METHOD OF ASSEMBLING THE DRIVE UNIT 有权
公开(公告)号：EP3441297B1
公开(公告)日：2020-03-25
申请号：EP18187978.4
申请日：2018-08-08
申请人： Yamaha Hatsudoki Kabushiki Kaisha
发明人： USAMI, Tomohiro
IPC分类号： B62M6/55 , B62M6/45

6. 发明公开

EP3441297A1 ELECTRICALLY ASSISTED VEHICLE HAVING A DRIVE UNIT AND METHOD OF ASSEMBLING THE DRIVE UNIT 有权
公开(公告)号：EP3441297A1
公开(公告)日：2019-02-13
申请号：EP18187978.4
申请日：2018-08-08
申请人： Yamaha Hatsudoki Kabushiki Kaisha
发明人： USAMI, Tomohiro
IPC分类号： B62M6/55 , B62M6/45
摘要： A drive unit (51) for use in an electrically assisted vehicle (1) includes: an electric motor (25); an electronic circuit board having mounted thereon a control circuit which controls rotation of the electric motor; a holder covering a whole or a part of the electronic circuit board and being fixed to the electronic circuit board; and a housing accommodating the electric motor, the electronic circuit board, and the holder, such that the electronic circuit board is accommodated at a deeper position than is the holder. The holder has second holes and at least two tabs. The electronic circuit board has first holes. The holder is fixes to the electronic circuit board by using the tabs. The holder and the electronic circuit board are fixed to the housing by fixing members extending through the first holes and the second holes.

7. 发明公开

EP3239031A1 DRIVE UNIT AND ELECTRIC-MOTOR-ASSISTED BICYCLE 有权
标题翻译：驱动装置和电动机辅助自行车
公开(公告)号：EP3239031A1
公开(公告)日：2017-11-01
申请号：EP17159162.1
申请日：2017-03-03
申请人： Yamaha Hatsudoki Kabushiki Kaisha
发明人： UDA, Masatsugu , SUZUKI, Ryota , MANO, Yasunori , USAMI, Tomohiro
IPC分类号： B62M6/55 , B62M11/02
CPC分类号： B62M6/55 , B62M6/50 , B62M11/02 , F16D41/24
摘要： The size of the housing (21) of the drive unit used in an electric-motor-assisted bicycle (10) is reduced. As viewed in an axial direction of the crank axle (22), the substrate (48) housed in the housing does not overlap the reduction gear (24) but overlaps the driven gear (2333). The substrate is disposed around the crank axle. The substrate includes a component side. The component side spreads in a direction crossing the central axis (CL1) of the crank axle. The substrate extends in directions crossing radial directions of the crank axle. One end (481) of the substrate as determined along the direction in which the substrate extends is located on the side of the straight line (L1) connecting the shaft center of the crank axle and the shaft center of the motor output shaft (2522) as viewed in the axial direction, that is opposite to the side having the other end (488) of the substrate as determined along the direction in which the substrate extends. As viewed in the axial direction, the one and other ends are located between the shaft center of the crank axle and the shaft center of the motor output shaft as determined along the direction in which the straight line extends.
摘要翻译：用于电动辅助自行车（10）的驱动单元的壳体（21）的尺寸减小。从曲柄轴（22）的轴向观察，容纳在壳体中的基板（48）不与减速齿轮（24）重叠，而是与从动齿轮（2333）重叠。衬底围绕曲轴布置。衬底包括组件侧。部件侧在与曲轴的中心轴线（CL1）交叉的方向上扩展。基板在与曲轴的径向交叉的方向上延伸。沿基板延伸方向确定的基板的一端（481）位于连接曲轴的轴心和电动机输出轴（2522）的轴心的直线（L1）的一侧上，如沿轴向方向所看到的，沿着衬底延伸的方向确定的是与具有衬底的另一端（488）的一侧相反。从轴向观察时，一端和另一端位于沿着直线延伸的方向确定的曲柄轴的轴心和电动机输出轴的轴心之间。

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