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公开(公告)号:US20180119749A1
公开(公告)日:2018-05-03
申请号:US15858184
申请日:2017-12-29
发明人: Yoshihiko TAKEUCHI
CPC分类号: F16H3/089 , B60Y2200/12 , B62M11/06 , F16D11/10 , F16D11/14 , F16D21/04 , F16D23/12 , F16D23/14 , F16D2023/123 , F16H3/083 , F16H3/091 , F16H37/02 , F16H61/32 , F16H63/18 , F16H63/30 , F16H63/304 , F16H63/32 , F16H2061/0474 , F16H2061/2869 , F16H2063/3056 , F16H2063/3093 , F16H2200/0013 , F16H2200/0052
摘要: Incongruity sense of a driver due to dog clunking noise can be reduced with reduction of dog clunking noise. A fifth-speed driving gear (425) and a sixth-speed driving gear (426) are arranged on a driving shaft (41) along an axial direction. A first slider (451) is disposed to be movable in the axial direction between the fifth-speed driving gear (425) and the sixth-speed driving gear (426). The first slider (451) is not rotatable on the driving shaft (41). In the axial direction, the sum of the widths of the fifth-speed driving gear (425) and the sixth-speed driving gear (426) is smaller than the maximum width of the first slider (451).
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公开(公告)号:US20180187755A1
公开(公告)日:2018-07-05
申请号:US15893620
申请日:2018-02-10
发明人: Yoshihiko TAKEUCHI
CPC分类号: F16H3/089 , B60Y2200/12 , B62M11/06 , F16D11/10 , F16D11/14 , F16D21/04 , F16D23/12 , F16D23/14 , F16D2023/123 , F16H3/083 , F16H3/091 , F16H37/02 , F16H61/32 , F16H63/18 , F16H63/30 , F16H63/304 , F16H63/32 , F16H2061/0474 , F16H2061/2869 , F16H2063/3056 , F16H2063/3093 , F16H2200/0013 , F16H2200/0052
摘要: A transmission 20 includes gears 421 through 426 and 441 through 446, sliders 451 through 453, an electric motor 58, a shift drum 50, shift forks 491 through 493, and a control unit 83. The sliders 451 through 453 are members different from the gears 421 through 426 and 441 through 446. The shift drum 50 includes guide grooves 61 through 63 each including a linear portion 64 and a tilt portion 65. An end of each of the shift forks 491 through 493 is located in a corresponding one of the guide grooves 61 through 63. The control unit 83 controls the electric motor 58 to rotate the shift drum 50 in such a manner that a gear-shift rotation angle is less than 60 degrees. With rotation of the shift drum 50 by the gear-shift rotation angle, the shift forks 491 through 493 move the sliders 451 through 453 in the axial direction of the shaft 21 or 22. In this manner, dog portions of the sliders 451 through 453 mesh with dog portions of the gears 441 through 446 so that rotation of the shaft 21 is transferred to the shaft 22.
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