公开(公告)号：US20180223979A1

公开(公告)日：2018-08-09

申请号：US15940997

申请日：2018-03-30

Applicant: SHIMANO INC.

Inventor： Akinobu SUGIMOTO

IPC: F16H55/17 ,  F16H55/08 ,  B62M9/00 ,  B62M9/02

CPC classification number: F16H55/171 ,  B62M9/00 ,  B62M9/02 ,  F16H55/08

Abstract: A bicycle sprocket has a rotational center axis. The bicycle sprocket comprises a sprocket body and sprocket teeth. The sprocket teeth include at least one first tooth and at least one second tooth. The at least one first has a first radial-tooth height. The at least one second tooth is adjacent to the first tooth and disposed on a downstream side in a rotational driving direction of the bicycle sprocket. The at least one second tooth has a second radial-tooth height. The first radial-tooth height is greater than the second radial-tooth height. The at least one first tooth includes a tooth tip having an axial center plane in an axial direction. The axial center plane of the tooth tip is offset from the axial center plane of the sprocket body in the axial direction.

公开(公告)号：US10036464B2

公开(公告)日：2018-07-31

申请号：US14908915

申请日：2014-07-30

Applicant: TOYO DENKI SEIZO KABUSHIKI KAISHA

Inventor： Kenichi Goto ,  Yoshihiko Otsuka ,  Satoshi Hayashi

IPC: F16H55/08 ,  B61C9/50 ,  B61C3/00 ,  B61C9/38 ,  F16H1/08 ,  F16C19/36 ,  F16C19/54

CPC classification number: F16H55/08 ,  B61C3/00 ,  B61C9/38 ,  B61C9/50 ,  F16C19/364 ,  F16C19/547 ,  F16C2326/10 ,  F16C2361/61 ,  F16H1/08 ,  F16H55/0886 ,  F16H2055/0893

Abstract: A low-cost railway vehicle gear device of parallel cardan drive system is provided in which the vibrations and noises can be reduced only by means of 2-D tooth surface modifications. In a railway vehicle gear device of parallel cardan drive system having a helical pinion (1) and a helical gear wheel (2), a pinion and a gear wheel respectively having gear specifications of module of 4 to 8, pressure angle of 20 to 30°, and helix angle of 15 to 30°, crowning is performed on a gear surface in the flank line direction of the pinion. The tooth surface (11) has a shape of a sinusoidal curve with an apex (11a) being positioned in a central area of the face width direction of the pinion, the sinusoidal curve being expressed by a single sinusoidal function and extending over an entire width in the face width direction of the helical pinion.

公开(公告)号：US20180209531A1

公开(公告)日：2018-07-26

申请号：US15933350

申请日：2018-03-22

Applicant: SHIMANO INC.

Inventor： Akinobu SUGIMOTO

IPC: F16H55/17 ,  B62M9/00 ,  F16H55/08 ,  B62M9/02

CPC classification number: F16H55/171 ,  B62M9/00 ,  B62M9/02 ,  F16H55/08

Abstract: A bicycle sprocket comprises sprocket teeth. The sprocket teeth include at least one first tooth and at least one second tooth. The at least one first tooth has a first radial-tooth height. The at least one first tooth has a first chain-engaging axial width which is smaller than a first distance defined between opposed outer link plates of a bicycle chain and which is larger than a second distance defined between opposed inner link plates of the bicycle chain. The at least one second tooth is adjacent to the first tooth and is disposed on a downstream side in a rotational driving direction of the bicycle sprocket. The at least one second tooth is configured to engage with inner link plates of the bicycle chain. The at least one second tooth has a second radial-tooth height. The first radial-tooth height is greater than the second radial-tooth height.

公开(公告)号：US10001225B2

公开(公告)日：2018-06-19

申请号：US15263433

申请日：2016-09-13

Applicant: Bendix Commercial Vehicle Systems LLC

Inventor： Christopher L. Brubaker

IPC: F16H53/00 ,  F16K31/53 ,  F16H55/08 ,  F16H19/08 ,  F16H35/00 ,  F16H19/00 ,  G05G1/08 ,  G05G5/03

CPC classification number: F16K31/53 ,  F16H19/001 ,  F16H19/08 ,  F16H35/00 ,  F16H55/084 ,  F16H2035/003 ,  G05G1/04 ,  G05G1/08 ,  G05G5/03

Abstract: An apparatus for an actuating mechanism comprises a first member having a first axis; the first member has a generally spherical surface on a first half of the first axis and a generally ellipsoidal surface on a second half of the first axis. The first member is rotatable around a centerpoint of the first axis. A second member has a second axis and a generally ellipsoidal surface. The second member matingly engages the first member at the first member ellipsoidal surface and has a torsion spring coupled to the second member. The first member is actuated manually to move the second member. The torsion spring torque increases as the first member is rotated.

公开(公告)号：US20180149255A1

公开(公告)日：2018-05-31

申请号：US15576088

申请日：2015-06-23

Applicant: Harmonic Drive Systems Inc.

Inventor： Shoichi ISHIKAWA

IPC: F16H49/00 ,  F16H55/08

CPC classification number: F16H49/001 ,  F16H55/08 ,  F16H55/0833 ,  F16H55/088 ,  F16H2049/003

Abstract: The dedendum tooth profiles of the internal teeth and external teeth of a strain wave gearing are prescribed by a first homothetic curve BC and a second homothetic curve AC obtained from a curve segment from a point A, at which the angle formed by the tangent to a movement locus Mc when meshing is approximated by rack meshing and the major axis is ΘA, to a low point B. The dedendum tooth profile of the internal teeth is prescribed by a curve formed on the internal teeth in the course of the addendum tooth profile of the external teeth moving from an apex of the movement locus to point A. The dedendum tooth profile of the external teeth is prescribed by a curve formed on the external teeth when the addendum tooth profile of the internal teeth moves from the apex to arrive at point A.

公开(公告)号：US20180141643A1

公开(公告)日：2018-05-24

申请号：US15710861

申请日：2017-09-21

Applicant: Ratier-Figeac SAS

Inventor： Christian Fages

IPC: B64C13/34 ,  B64C13/10 ,  F16H1/20 ,  F16H55/08

CPC classification number: B64C13/34 ,  B64C13/10 ,  B64C13/341 ,  B64C19/00 ,  F16D9/06 ,  F16D2250/0061 ,  F16H1/206 ,  F16H35/10 ,  F16H55/0846

Abstract: A transmission or gearbox assembly with fail-safe means for providing redundancy where failure can lead to loss of torque transmission between component parts of the assembly, the assembly comprising a plurality of first components in torque transmitting engagement and at least one second component associated with at least one of the first components, the second component being joined to the respective first component by a discontinuous joint. Preferably, each first component of the system has a corresponding second component joined thereto by a discontinuous joint.

公开(公告)号：US09964196B2

公开(公告)日：2018-05-08

申请号：US14283165

申请日：2014-05-20

Applicant: SHIMANO INC.

Inventor： Akinobu Sugimoto

IPC: F16H55/17 ,  B62M9/02 ,  F16H55/08 ,  B62M9/00

CPC classification number: F16H55/171 ,  B62M9/00 ,  B62M9/02 ,  F16H55/08

Abstract: A bicycle sprocket comprises sprocket teeth. The sprocket teeth include at least one first tooth and at least one second tooth. The at least one first tooth has a first radial-tooth height. The at least one first tooth has a first chain-engaging axial width which is smaller than a first distance defined between opposed outer link plates of a bicycle chain and which is larger than a second distance defined between opposed inner link plates of the bicycle chain. The at least one second tooth is adjacent to the first tooth and is disposed on a downstream side in a rotational driving direction of the bicycle sprocket. The at least one second tooth is configured to engage with inner link plates of the bicycle chain. The at least one second tooth has a second radial-tooth height. The first radial-tooth height is greater than the second radial-tooth height.

公开(公告)号：US20180073660A1

公开(公告)日：2018-03-15

申请号：US15263443

申请日：2016-09-13

Applicant: Bendix Commercial Vehicle Systems LLC

Inventor： Christopher L. Brubaker ,  Eugene E. Clair

IPC: F16K31/524 ,  F16H19/08 ,  F16H55/08 ,  F16H35/00 ,  F16K11/065 ,  F16K31/56

CPC classification number: F16K31/52483 ,  F16H19/08 ,  F16H35/00 ,  F16H35/18 ,  F16H53/02 ,  F16H53/06 ,  F16H55/084 ,  F16H55/566 ,  F16H2035/003 ,  F16K11/065 ,  F16K11/07

Abstract: An actuation mechanism for a valve comprises a first member having a generally spherical surface on a first side of a bisecting line and a generally ellipsoidal surface on a second side of the bisecting line. The first member is rotatable around a central point of the bisecting line. The valve has a second member with a truncated ellipsoidal surface on both sides of a bisecting line. The second member matingly engages the first member at the first member ellipsoidal surface. The valve also includes a longitudinal member coupled to the second member and a biasing member coupled to the longitudinal member. The first member is rotated around the central point from a first position to a second position to move the second member and the longitudinal member linearly. The biasing member returns the first member and second member to the first position upon release of the first member.

公开(公告)号：US20180038454A1

公开(公告)日：2018-02-08

申请号：US15668917

申请日：2017-08-04

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yusuke Niikawa ,  Shoji Yamamoto

IPC: G03G15/00 ,  F16H55/08 ,  F16H57/033 ,  F16H3/02 ,  F16H57/021

CPC classification number: F16H3/02 ,  F16H55/08 ,  F16H57/021 ,  F16H57/033 ,  F16H2055/0893 ,  F16H2057/02039 ,  G03G15/757 ,  G03G21/1647 ,  G03G2221/1657

Abstract: A drive transmission mechanism includes a first gearbox including a driving source, a first gear train, a first frame configured to support one ends of a plurality of shafts of the first gear train, and a first gear cover configured to support the other ends of the shafts of the first gear train, wherein the first gear box is configured to transmit a driving force from the driving source; and a second gearbox including a second gear train, a second frame configured to support one ends of a plurality of shafts of the second gear train, and a second gear cover configured to support the other ends of the shafts of the second gear train, wherein the second gearbox is configured to receive the driving force from the driving source through the first gear train and configured to transmit the driving force. The second gearbox is fixed to the first gearbox.

公开(公告)号：US20180031105A1

公开(公告)日：2018-02-01

申请号：US15782084

申请日：2017-10-12

Applicant: Wick Werks, LLC

Inventor： Christopher A. Wickliffe ,  Eldon Goates

IPC: F16H55/30 ,  B62M9/10 ,  B62M9/12 ,  F16H55/08

CPC classification number: F16H55/303 ,  B62M9/105 ,  B62M9/12 ,  F16H55/08

Abstract: A bicycle chain ring for engaging a chain link of a bicycle chain, the bicycle chain ring including an inner edge fully circumscribing both an opening and an axis of rotation, an inner surface extending between the inner edge and an outer edge where a plurality of chain ring teeth emanate, and a plurality of ramps disposed about the inner surface, wherein at least one of the plurality of ramps includes a lifting surface for initiating lift of a bicycle chain without assistance from the plurality of chain ring teeth. The lifting surface extends radially along the inner surface toward the outer edge, and the at least one ramp has a first end proximate the inner edge and a second end proximate the outer edge. The second end of the at least one lifting surface terminates before reaching the bottom of a trough positioned between two or more of the plurality of chain ring teeth.