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公开(公告)号：US11572135B2
公开(公告)日：2023-02-07
申请号：US17242036
申请日：2021-04-27
申请人： Praxis Works LLC
IPC分类号： B62M9/136 , B62M25/08 , B62M9/1342
摘要： A gearbox may include a drive spindle and several interconnected gear clusters arranged in a housing. A first of the gear clusters is coaxially fastened to the spindle, and has an outboard gear and an inboard gear. The first gear cluster drives a belt or chain to operate one or more of the other gear clusters, and the inboard gear is physically divided into a plurality of segments. A shifting system for the gearbox includes an actuator configured to urge the segments of the inboard gear of the first gear cluster into and out of the plane of the belt or chain via a toggle and slider mechanism, such that a gear ratio of the gearbox is changeable without displacing the belt or chain out of the plane.
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公开(公告)号：US20160272002A1
公开(公告)日：2016-09-22
申请号：US14923343
申请日：2015-10-26
申请人： Praxis Works LLC
发明人： David M. Earle , Ding-Jiun Lin
CPC分类号： B21D53/86 , B21D53/26 , B21D53/28 , B23K2101/00 , B60B1/003 , B60B1/041 , B60B1/042 , B60B27/0026 , B60B27/023 , B60B27/047 , B60B31/005 , B62M9/10 , Y10T29/49462 , Y10T29/49465 , Y10T29/49481 , Y10T29/49506
摘要： A bicycle wheel assembly may include a cassette having a plurality of sprocket portions, the cassette being configured such that a cavity or recess is formed in a large end of the cassette. A wheel hub coupled to the cassette may include a spoke connection flange that is disposed at least partially within the cavity of the cassette, facilitating a more acute spoke angle.
摘要翻译： 自行车车轮组件可以包括具有多个链轮部分的盒，所述盒被构造成使得在盒的大端部中形成空腔或凹部。 联接到盒的轮毂可以包括至少部分地设置在盒的空腔内的轮辐连接凸缘，从而有助于更尖锐的辐角。
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公开(公告)号：US10160030B2
公开(公告)日：2018-12-25
申请号：US15348815
申请日：2016-11-10
申请人： Praxis Works LLC
发明人： David M. Earle , Ding-Jiun Lin
IPC分类号： B21D53/86 , B60B27/04 , B60B1/00 , B60B27/00 , B60B27/02 , B60B1/04 , B21D53/28 , B62M9/10 , B21D53/26 , B60B31/00 , B23K101/00
摘要： A cassette for a bicycle may include a plurality of sprocket portions joined together into a single unit. The cassette may include a cavity formed in the large end of the cassette. A related manufacturing method may include joining a first generally planar sprocket portion having a plurality of connector portions extending transverse to the plane of the first sprocket portion, to a second generally planar sprocket portion, e.g., by fusing at least one of the connector portions to the second sprocket portion.
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公开(公告)号：US09580143B2
公开(公告)日：2017-02-28
申请号：US14683142
申请日：2015-04-09
申请人： Praxis Works LLC
摘要： An apparatus for driving a drive chain, such as on a bicycle, may include a chainring having teeth arranged around a circumference of the chainring, and one or more magnetic portions disposed adjacent to the teeth of the chainring. The one or more magnetic portions may be disposed on the chainring and/or on a frame to which the chainring is rotatably coupled.
摘要翻译： 用于驱动链条的装置，例如在自行车上，可以包括具有围绕链轮的圆周布置的齿的链轮，以及邻近链轮齿设置的一个或多个磁性部分。 一个或多个磁性部分可以设置在链节上和/或链轮上可旋转地联接到的框架上。
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公开(公告)号：US20150307156A1
公开(公告)日：2015-10-29
申请号：US14683142
申请日：2015-04-09
申请人： Praxis Works LLC
摘要： An apparatus for driving a drive chain, such as on a bicycle, may include a chainring having teeth arranged around a circumference of the chainring, and one or more magnetic portions disposed adjacent to the teeth of the chainring. The one or more magnetic portions may be disposed on the chainring and/or on a frame to which the chainring is rotatably coupled.
摘要翻译： 用于驱动链条的装置，例如在自行车上，可以包括具有围绕链轮的圆周布置的齿的链轮，以及邻近链轮齿设置的一个或多个磁性部分。 一个或多个磁性部分可以设置在链节上和/或链轮上可旋转地联接到的框架上。
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公开(公告)号：US12097929B2
公开(公告)日：2024-09-24
申请号：US18165880
申请日：2023-02-07
申请人： Praxis Works LLC
发明人： David Allen , David M. Earle , Kyle Bennett , William A. Hilgenberg , Rainer Pokorny , Ryan Kent Miller
摘要： A gearbox may include a drive spindle and several interconnected gear clusters arranged in a housing. A first of the gear clusters is coaxially fastened to the spindle, and has an outboard gear and an inboard gear. The first gear cluster drives a belt to operate one or more of the other gear clusters, and the inboard gear is physically divided into a plurality of segments. A shifting system for the gearbox includes an actuator configured to urge the segments of the inboard gear of the first gear cluster into and out of the plane of the belt, such that a gear ratio of the gearbox is changeable without displacing the belt out of the plane.
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公开(公告)号：US12060135B2
公开(公告)日：2024-08-13
申请号：US18165884
申请日：2023-02-07
申请人： Praxis Works LLC
IPC分类号： B62M9/14 , B62M9/10 , B62M9/1342 , B62M9/136 , B62M25/08
CPC分类号： B62M9/14 , B62M9/1342 , B62M9/136 , B62M25/08 , B62M9/10
摘要： A gearbox may include a drive spindle and several interconnected gear clusters arranged in a housing. A first of the gear clusters is coaxially fastened to the spindle, and has an outboard gear and an inboard gear. The first gear cluster drives a belt or chain to operate one or more of the other gear clusters, and the inboard gear is physically divided into a plurality of segments. A shifting system for the gearbox includes an actuator configured to urge the segments of the inboard gear of the first gear cluster into and out of the plane of the belt or chain via a toggle and slider mechanism, such that a gear ratio of the gearbox is changeable without displacing the belt or chain out of the plane.
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公开(公告)号：US10989281B2
公开(公告)日：2021-04-27
申请号：US16792050
申请日：2020-02-14
申请人： Praxis Works LLC
摘要： A gearbox may include a drive spindle and several interconnected gear clusters arranged in a housing. A first of the gear clusters is coaxially fastened to the spindle, and has an outboard gear and an inboard gear. The first gear cluster drives a chain to operate one or more of the other gear clusters, and the inboard gear is physically divided into a plurality of segments. A shifting system for the gearbox includes an actuator configured to urge the segments of the inboard gear of the first gear cluster into and out of the plane of the chain, such that a gear ratio of the gearbox is changeable without displacing the chain out of the plane.
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公开(公告)号：US10988207B1
公开(公告)日：2021-04-27
申请号：US17152483
申请日：2021-01-19
申请人： Praxis Works LLC
IPC分类号： B62M9/136 , B62M25/08 , B62M9/1342
摘要： A gearbox may include a drive spindle and several interconnected gear clusters arranged in a housing. A first of the gear clusters is coaxially fastened to the spindle, and has an outboard gear and an inboard gear. The first gear cluster drives a belt or chain to operate one or more of the other gear clusters, and the inboard gear is physically divided into a plurality of segments. A shifting system for the gearbox includes an actuator configured to urge the segments of the inboard gear of the first gear cluster into and out of the plane of the belt or chain via a toggle and slider mechanism, such that a gear ratio of the gearbox is changeable without displacing the belt or chain out of the plane.
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公开(公告)号：US09168976B1
公开(公告)日：2015-10-27
申请号：US14660856
申请日：2015-03-17
申请人： Praxis Works LLC
发明人： David M. Earle , Ding-Jiun Lin , David Allen , Shih-Min Lin
CPC分类号： B62M9/10 , B21D53/26 , B21D53/28 , B21D53/86 , B23K35/0255 , B60B27/04 , B60B31/005 , Y10T29/49462 , Y10T29/49465 , Y10T29/49481 , Y10T29/49506
摘要： A cassette for a bicycle may include a plurality of sprocket portions fused into a single unit. The cassette may include a cavity formed in the large end of the cassette. Spokes of an associated wheel may be at least partially disposed in the cavity. A related manufacturing method may include joining a first generally planar sprocket portion having a plurality of connector portions extending transverse to the plane of the first sprocket portion, to a second generally planar sprocket portion by fusing at least one of the connector portions to the second sprocket portion.
摘要翻译： 用于自行车的盒可以包括融合成单个单元的多个链轮部分。 盒可以包括形成在盒的大端中的空腔。 相关轮的轮缘可以至少部分地设置在空腔中。 相关的制造方法可以包括将具有多个连接器部分的第一大致平面的链轮部分连接到第二大致平面的链轮部分，第二大致平面的链轮部分通过将至少一个连接器部分融合到第二链轮 一部分。
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