公开(公告)号：US20210245836A1

公开(公告)日：2021-08-12

申请号：US17242036

申请日：2021-04-27

申请人： Praxis Works LLC

发明人： David M. EARLE ,  William A. HILGENBERG ,  David ALLEN ,  Kyle BENNETT ,  Ryan Kent MILLER

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.

公开(公告)号：US20200377174A1

公开(公告)日：2020-12-03

申请号：US16998010

申请日：2020-08-20

申请人： Praxis Works LLC

发明人： David ALLEN ,  David M. EARLE ,  Kyle BENNETT ,  William A. HILGENBERG ,  Rainer POKORNY ,  Ryan Kent MILLER

IPC分类号： B62M6/55 ,  F16H9/24 ,  B62M9/123 ,  B62M9/124

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.

公开(公告)号：US20200263767A1

公开(公告)日：2020-08-20

申请号：US16792050

申请日：2020-02-14

申请人： Praxis Works LLC

发明人： David ALLEN ,  David M. EARLE ,  Kyle BENNETT ,  William A. HILGENBERG ,  Rainer POKORNY

IPC分类号： F16H9/24 ,  B62M9/14 ,  B62M9/10 ,  F16H55/30 ,  B62M6/55

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.

公开(公告)号：US20230242211A1

公开(公告)日：2023-08-03

申请号：US18165884

申请日：2023-02-07

申请人： Praxis Works LLC

发明人： David M. EARLE ,  William A. HILGENBERG ,  David ALLEN ,  Kyle BENNETT ,  Ryan Kent MILLER

IPC分类号： B62M9/14 ,  B62M9/136 ,  B62M25/08 ,  B62M9/1342

CPC分类号： B62M9/14 ,  B62M9/136 ,  B62M25/08 ,  B62M9/1342 ,  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.

公开(公告)号：US20230365221A1

公开(公告)日：2023-11-16

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

IPC分类号： B62M6/55 ,  F16H9/24 ,  B62M9/124 ,  B62M9/123

CPC分类号： B62M6/55 ,  B62M9/123 ,  B62M9/124 ,  F16H9/24

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.

公开(公告)号：US20230294793A1

公开(公告)日：2023-09-21

申请号：US18303455

申请日：2023-04-19

申请人： Praxis Works LLC

发明人： David ALLEN ,  David M. Earle ,  Ryan Kent Miller ,  Michael David Machado

IPC分类号： B62M9/14 ,  B62M9/136 ,  B62M25/08 ,  B62M9/1342

CPC分类号： B62M9/14 ,  B62M9/1342 ,  B62M9/136 ,  B62M25/08 ,  B62M9/10

摘要： A method for shifting a segmented gear may include rotating a gear cluster including a first gear and a coaxial second gear using a power transfer mechanism (e.g., a belt or a chain). The power transfer mechanism defines a plane and is wrapped partially around the first gear. and wherein the first gear has a plurality of gear segments independently movable (e.g., pivotable or translatable) into and out of the plane. A plurality of radially transitionable sliders are rotated in tandem with the first gear, and each of the sliders is operatively coupled to a corresponding one of the gear segments of the first gear. In sequence, each segment of the first gear is moved out of the plane of the power transfer mechanism by urging the slider in a radial direction using a segment actuator, such that the power transfer mechanism wraps at least partially around the second gear.