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公开(公告)号：US20250052301A1
公开(公告)日：2025-02-13
申请号：US18796814
申请日：2024-08-07
Applicant: HONDA MOTOR CO., LTD.
Inventor： Masaru SORA , Soichi SUGINO
Abstract: A power transmission device includes: a first rotation member; a first rotation shaft supporting the first rotation member; a second rotation member; a second rotation shaft supporting the second rotation member; and an endless flexible member wound around the first rotation member and the second rotation member, in which at least one of the first rotation member and the second rotation member is movable in an axial direction thereof, and the endless flexible member includes a restriction portion configured to restrict movement of at least one of the first rotation member and the second rotation member in the axial direction.
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公开(公告)号：US20250003476A1
公开(公告)日：2025-01-02
申请号：US18678959
申请日：2024-05-30
Applicant: Sunstar Singapore Pte. LTD.
Inventor： Wey Chin TAN , Chee Onn LEONG
Abstract: A sprocket capable of suppressing mud intrusion is provided. The sprocket 1 according to one embodiment is a sprocket 1, which includes a plurality of teeth and a mud discharge groove 30 that is formed to partially reduce the plate thickness and opens into the region including the tooth root center (Pbc) and the tooth tip center (Ptc) on the trailing side in the rotational direction.
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公开(公告)号：US12151782B2
公开(公告)日：2024-11-26
申请号：US18026257
申请日：2021-09-20
Applicant: Douglas Gilman Brown, Jr.
Inventor： Douglas Gilman Brown, Jr.
Abstract: A sprocket having a gear tooth valley radius which varies around the sprocket perimeter provides additional gear torque multiplication to a rider, which is especially beneficial when climbing hills. In some embodiments, the sprocket is a bicycle chainring with reduced gear tooth valley radius over at least a portion of the chainring. In other embodiments, the sprocket is a bicycle rear wheel cassette cog with increased gear tooth valley radius over at least a portion of the cassette cog. Regions of both reduced and increased gear tooth valley radius may be present on a given sprocket. The sprocket valley floor surface may be rounded or may include N segments adjoined by N vertices. The segments of the valley floor surface may be curved or straight. The vertices of the valley floor surface may be curved or angled. Embodiments for bicycles and motorcycles are presented.
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公开(公告)号：US12055191B2
公开(公告)日：2024-08-06
申请号：US17441069
申请日：2020-02-04
Applicant: SUNSTAR ENGINEERING INC.
Inventor： Satoshi Kubota , Yuki Murayama
CPC classification number: F16D65/12 , F16D13/60 , F16H55/30 , F16D2065/1384
Abstract: A rotation transmission disc includes: an outer circumferential portion on which a load acts when rotation is transmitted; a center opening portion formed inside the outer circumferential portion; and a plurality of attachment holes for attachment of the rotation transmission disc 1 to a rotating element. A first crosspiece portions are formed in each of ranges of divided angles formed by two adjacent attachment holes with respect to a center of the rotation transmission disc. The first crosspiece portion extends from a load point, which is an intersection between a straight line extending in a radial direction to internally divide the divided angles at a predetermined angular ratio and a load radius position of the outer circumferential portion, to one of the attachment holes forming the divided angles. The second crosspiece portion extends from the load point to the other attachment hole of the attachment holes forming the divided angles.
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公开(公告)号：US11999439B2
公开(公告)日：2024-06-04
申请号：US17326170
申请日：2021-05-20
Applicant: Fox Factory, Inc.
Inventor： Evan Michael Choltco-Devlin , Jason Kennett , David Robert Edwards
Abstract: A cinch direct mount 2X ring system is disclosed. One embodiment discloses a chainring assembly having a drive side crank arm with a chainring assembly interface including a plurality of splines, a circumference, and an axial length. The chainring assembly includes a first chainring having a first outer diameter and a first center assembly shape. The chainring assembly includes a second chainring having a second outer diameter and a second center assembly shape, the second outer diameter being different than the first outer diameter. The chainring assembly also includes a fastener to couple the first chainring and the second chainring with the chainring assembly interface, such that at least one of the first center assembly shape or the second center assembly shape engages with the plurality of splines.
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Patent Agency Ranking
公开(公告)号：US11851135B2
公开(公告)日：2023-12-26
申请号：US17328421
申请日：2021-05-24
Applicant: Fox Factory, Inc.
Inventor： Evan Michael Choltco-Devlin , Jason Kennett , David Robert Edwards
Abstract: A cinch direct mount 2× ring system is disclosed. One embodiment discloses a chainring assembly having a drive side crank arm with a chainring assembly interface including a plurality of splines, a circumference, and an axial length. The chainring assembly includes a first chainring having a first outer diameter and a first center assembly shape. The chainring assembly includes a second chainring having a second outer diameter and a second center assembly shape, the second outer diameter being different than the first outer diameter. The chainring assembly also includes a fastener to couple the first chainring and the second chainring with the chainring assembly interface, such that at least one of the first center assembly shape or the second center assembly shape engages with the plurality of splines.
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公开(公告)号：US20230366457A1
公开(公告)日：2023-11-16
申请号：US17943507
申请日：2022-09-13
Applicant: WICK WERKS LLC
Inventor： Christoper A. Wickliffe
CPC classification number: F16H55/30 , B62M9/00 , B62M2009/005
Abstract: A bicycle chain ring having a plurality of teeth extending radially about an axis of the chain ring, the plurality of teeth including a first group of teeth and a second group of teeth. The first group of teeth has a first width at a tooth base that is sized to be received within a chain cavity defined between parallel links of a bicycle chain. The second group of teeth has a second width at the tooth base, the second width being different from the first width. Further, the first group of teeth have a tooth tip that is substantially centered on a plane defined between an inner surface and an outer surface of the chain ring and the second group of teeth is at least partially offset from the plane.
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公开(公告)号：US20230358299A1
公开(公告)日：2023-11-09
申请号：US18224435
申请日：2023-07-20
Applicant: Cummins Inc.
Inventor： James A. Dods , Michael J. Cooper , Paul A. Leggott , Graham Dowson
Abstract: The present disclosure provides a captive sprocket system for an engine, comprising: a sprocket including a first sprocket gear, a second sprocket gear and a retaining disc having a diameter and a thickness; a cylinder block having a bore with a central opening and a plurality of threaded bosses, the plurality of threaded bosses together forming an axial support surface and a radial location surface, the axial support surface and the radial location surface being sized to receive the retaining disc of the sprocket to support and locate the sprocket; and a plurality of captivation screws configured to be received by the plurality of threaded bosses, each captivation screw having a head with a lower surface which, when the captivation screw is received by a threaded boss, overlies the retaining disc and retains the sprocket in the bore.
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公开(公告)号：US20230356803A1
公开(公告)日：2023-11-09
申请号：US18026257
申请日：2021-09-20
Applicant: Douglas Gilman BROWN, Jr.
Inventor： Douglas Gilman BROWN, Jr.
Abstract: A sprocket having a gear tooth valley radius which varies around the sprocket perimeter provides additional gear torque multiplication to a rider, which is especially beneficial when climbing hills. In some embodiments, the sprocket is a bicycle chainring with reduced gear tooth valley radius over at least a portion of the chainring. In other embodiments, the sprocket is a bicycle rear wheel cassette cog with increased gear tooth valley radius over at least a portion of the cassette cog. Regions of both reduced and increased gear tooth valley radius may be present on a given sprocket. The sprocket valley floor surface may be rounded or may include N segments adjoined by N vertices. The segments of the valley floor surface may be curved or straight. The vertices of the valley floor surface may be curved or angled. Embodiments for bicycles and motorcycles are presented.
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公开(公告)号：US11808340B2
公开(公告)日：2023-11-07
申请号：US17261297
申请日：2019-06-19
Applicant: Jong Il Cho
Inventor： Jong-Won Cho
CPC classification number: F16H55/303 , A22C21/0053 , B65G17/20 , B65G17/30
Abstract: The present invention relates to an idle gear set for an overhead poultry conveyor, the gear set including a variable structure chain gear capable of being adjusted in size according to the needs of a user. Specifically, an idle gear set for an overhead poultry conveyor includes a chain gear for moving a roller assembly, the chain gear comprises: a pair of plates vertically spaced apart and arranged in parallel; and a plurality of chain guides interposed between the pair of plates, and radially arranged along the circumferences of the plates, wherein the chain guides are arranged to be spaced apart such that a mounting groove into which the roller assembly is inserted can be formed between the chain guide and another adjacent chain guide.
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