公开(公告)号：US11015697B2

公开(公告)日：2021-05-25

申请号：US15781897

申请日：2016-12-01

申请人： PIAGGIO & C. S.p.A.

发明人： Walter Mariotti ,  Giacomo Freschi ,  Paolo Nesti

IPC分类号： F16H55/56 ,  F16H9/18 ,  F16H9/12

摘要： A continuously variable transmission device (1) for a two-, three- or four-wheel motorcycle comprises a gear shift regulation device provided with a slide (40) axially slidable and suitable to engage special rollers (18) to hold them during the gear shift. A mobile bushing (9) is suitable to influence the slide (40) to cause its translation from a rearward position to a forward limit position to engage the special rollers (18).

公开(公告)号：US20140315670A1

公开(公告)日：2014-10-23

申请号：US14364255

申请日：2012-12-12

申请人： PIAGGIO & C. S.p.A.

发明人： Walter Mariotti ,  Paolo Nesti

IPC分类号： F16H9/12

CPC分类号： F16H9/12 ,  F16H55/563 ,  F16H61/66245 ,  F16H63/067

摘要： A continuously variable transmission system for a motorcycle includes a first drive sheave (12) operated by a transmission half-shaft (14) and a second driven sheave, connected by a V-belt. The drive sheave (12) has a first half-sheave (16) and a second half-sheave (18) substantially conical, sliding axially aligned, joined in rotation. The first half sheave (16) is fitted internally with a speed regulator composed of centrifugal masses (20) which move to cause the axial shift in the direction of extension of the transmission half-shaft (14), of the first half-sheave (16) relative to the corresponding second half-sheave (18). A device (10) for regulating the gear change curve is provided with an electromechanical actuator to cause selective intervention of a determined group of centrifugal masses (20) to vary, for the same number of revs of the engine, the centrifugal force needed to achieve the axial shift of the first half-sheave (16).

摘要翻译： 一种用于摩托车的无级变速器系统包括由V型皮带连接的由变速器半轴（14）和第二驱动滑轮操作的第一驱动滑轮（12）。 驱动滑轮（12）具有基本上圆锥形的第一半滑轮（16）和第二半滑轮（18），所述第二半滑轮（18）以轴向对齐的方式旋转接合。 第一半滑轮（16）内部装有由离心质量块（20）构成的速度调节器，该离心质量块（20）移动以引起第一半滑轮（14）的变速器半轴（14）的延伸方向的轴向移动 16）相对于相应的第二半槽轮（18）。 用于调节变速曲线的装置（10）设置有机电致动器，以使所确定的一组离心质量块（20）的选择性干预在相同数量的发动机转速下变化以实现所需的离心力 第一半槽轮（16）的轴向移动。

公开(公告)号：US11105408B2

公开(公告)日：2021-08-31

申请号：US16334454

申请日：2017-09-19

申请人： PIAGGIO & C. S.p.A.

发明人： Paolo Nesti ,  Walter Mariotti ,  Giacomo Freschi

IPC分类号： F16H55/56 ,  F16H9/12

摘要： A CVT transmission device (1) comprises a drive pulley (4) provided with a mobile bushing (9), a fixed bushing (11), a cam system (95,111; 97,113) comprising at least one driven cam portion (95) of mobile bushing (9) and a cam portion (111) of the fixed bushing (11). The mobile bushing (9) comprises a main wall (91) annular with respect to the axis of rotation (X), having an inner surface (91a) which delimits a housing compartment (91c) and said driven cam portion (95) protrudes radially internally from said inner surface (91a). The drive cam portion (111) of the fixed bushing (11) is suitable to penetrate axially in said housing compartment of the mobile bushing (9).

公开(公告)号：US09518641B2

公开(公告)日：2016-12-13

申请号：US14364255

申请日：2012-12-12

申请人： PIAGGIO & C. S.p.A.

发明人： Walter Mariotti ,  Paolo Nesti

IPC分类号： F16H59/00 ,  F16H61/00 ,  F16H63/00 ,  F16H9/12 ,  F16H61/662 ,  F16H55/56 ,  F16H63/06

CPC分类号： F16H9/12 ,  F16H55/563 ,  F16H61/66245 ,  F16H63/067

摘要： A continuously variable transmission system for a motorcycle includes a first drive sheave (12) operated by a transmission half-shaft (14) and a second driven sheave, connected by a V-belt. The drive sheave (12) has a first half-sheave (16) and a second half-sheave (18) substantially conical, sliding axially aligned, joined in rotation. The first half sheave (16) is fitted internally with a speed regulator composed of centrifugal masses (20) which move to cause the axial shift in the direction of extension of the transmission half-shaft (14), of the first half-sheave (16) relative to the corresponding second half-sheave (18). A device (10) for regulating the gear change curve is provided with an electromechanical actuator to cause selective intervention of a determined group of centrifugal masses (20) to vary, for the same number of revs of the engine, the centrifugal force needed to achieve the axial shift of the first half-sheave (16).

摘要翻译： 一种用于摩托车的无级变速器系统包括由V型皮带连接的由变速器半轴（14）和第二驱动滑轮操作的第一驱动滑轮（12）。 驱动滑轮（12）具有基本上圆锥形的第一半滑轮（16）和第二半滑轮（18），所述第二半滑轮（18）以轴向对齐的方式旋转接合。 第一半滑轮（16）内部装有由离心质量块（20）构成的速度调节器，该离心质量块（20）移动以引起第一半滑轮（14）的变速器半轴（14）的延伸方向的轴向移动 16）相对于相应的第二半槽轮（18）。 用于调节变速曲线的装置（10）设置有机电致动器，以使所确定的一组离心质量块（20）的选择性干预在相同数量的发动机转速下变化以实现所需的离心力 第一半槽轮（16）的轴向移动。

公开(公告)号：US11359711B2

公开(公告)日：2022-06-14

申请号：US16060827

申请日：2016-12-01

申请人： PIAGGIO & C. S.p.A.

发明人： Walter Mariotti ,  Giacomo Freschi ,  Paolo Nesti

IPC分类号： F16H55/56 ,  F16H9/12 ,  F16H55/52 ,  F16H9/16 ,  F16H9/18 ,  F16H55/49

摘要： A continuously variable transmission device (1) for a two-wheel, three-wheel or four-wheel motorcycle includes a cam system (20, 22; 32a, 32b) operating between a fixed bushing (11) and a mobile bushing (9). The device is configured to obstruct the approach between the active surfaces (8a, 10a) or to facilitate the approach of the active surfaces.

公开(公告)号：US20180355966A1

公开(公告)日：2018-12-13

申请号：US15781897

申请日：2016-12-01

申请人： PIAGGIO & C. S.p.A.

发明人： Walter Mariotti ,  Giacomo Freschi ,  Paolo Nesti

IPC分类号： F16H55/56 ,  F16H9/18

CPC分类号： F16H55/563 ,  F16H9/125 ,  F16H9/18

摘要： A continuously variable transmission device (1) for a two-, three- or four-wheel motorcycle comprises a gear shift regulation device provided with a slide (40) axially slidable and suitable to engage special rollers (18) to hold them during the gear shift. A mobile bushing (9) is suitable to influence the slide (40) to cause its translation from a rearward position to a forward limit position to engage the special rollers (18).

公开(公告)号：US20180222550A1

公开(公告)日：2018-08-09

申请号：US15749365

申请日：2016-08-01

申请人： Piaggio & C. S.p.A

发明人： Paolo Nesti ,  Walter Mariotti

IPC分类号： B62M9/10 ,  B62M11/04 ,  F16D43/14 ,  F16H3/12

CPC分类号： B62M9/10 ,  B62M7/12 ,  B62M11/04 ,  F16D43/14 ,  F16H3/089 ,  F16H3/10 ,  F16H3/12 ,  F16H37/02 ,  F16H2200/0039

摘要： A three-speed motorcycle transmission (1), to be used aboard a motorcycle as transmission means for 5 transmitting the motion generated by an engine to a driving wheel, having performances similar to those of a continuously variable transmission but, at the same time, a high efficiency and an easy automatic operation, comprises: a crankshaft (2), which receives the motion by 0 an engine, having a first pulley (9) mounted thereon; a primary shaft (4), having a second pulley (12) and a first set of three gears (21, 22, 23) mounted thereon; a transmission belt (11) connecting said first and said second pulley (9, 12); a secondary shaft (4), connected 5 to a driving wheel, comprising a second set of three gears (31, 32, 33), engaged in pairs with respective gears (21, 22, 23) of the first set of three gears for the transmission of the first, second and third speed; a clutch (10) acting selectively on at least two pairs of 0 gears assigned to the transmission of the second and third speeds; and two free wheels (15, 18) arranged at the pairs of gears assigned to the transmission of the first and second speed.