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公开(公告)号：US12017729B2
公开(公告)日：2024-06-25
申请号：US17065569
申请日：2020-10-08
Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
Inventor： Tatsunori Shimizu
Abstract: A drive unit of an electrically assisted bicycle includes a movement restrictor to restrict the movement of a first bearing relative to a housing along a thrust direction. A first end surface of the first bearing is farther outward than a second end surface along the right-left direction. The housing includes an abutting portion that abuts the first end surface of the first bearing, and a groove that is farther inward than the abutting portion along the right-left direction. The movement restrictor includes the abutting portion, the groove of the housing, and an elastic member fitted in the groove.
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公开(公告)号：US11787503B2
公开(公告)日：2023-10-17
申请号：US17977474
申请日：2022-10-31
Applicant: SRAM, LLC
Inventor： Geoff Nichols
CPC classification number: B62M6/50 , B62M1/36 , B62M3/00 , B62M6/55 , B62J45/40 , B62J50/25 , G01L5/16
Abstract: An axle assembly for a bicycle includes an axle having an inner wall extending along a length of the axle between a first end and a second end of the axle. The inner wall at least partially defines a first volume and a second volume within the axle. The first volume has a first diameter, and the second volume has a second diameter that is greater than the first diameter. The first volume is closer than the second volume to the first end of the axle. The axle assembly also includes a sensor attached to the inner wall of the axle within the second volume of the axle.
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公开(公告)号：US20230234673A1
公开(公告)日：2023-07-27
申请号：US18109773
申请日：2023-02-14
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：US20180274651A1
公开(公告)日：2018-09-27
申请号：US15470281
申请日：2017-03-27
Applicant: Christianson Systems, Inc.
Inventor： Jim Gerhardt , Shannon Hansen , Patrick Robert Jensen
Abstract: The present disclosure provides a new chainring system and method of installing and removing a chainring. The system eliminates the need for the use of special tools to install and remove a chainring.
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公开(公告)号：US20180231060A1
公开(公告)日：2018-08-16
申请号：US15894406
申请日：2018-02-12
Applicant: Campagnolo S.r.l.
Inventor： Marco MILANESIO , Filippo BISARELLO
CPC classification number: F16D1/10 , B62M1/36 , B62M3/00 , B62M3/003 , B62M9/122 , F16D1/02 , F16D1/06
Abstract: A shaft element of a bicycle bottom bracket assembly comprising a first end portion having a first coupling portion for coupling with another shaft element and an opposite second end portion having a second coupling portion for coupling with a crank arm. The first coupling portion comprises at least one reference element that defines a single mutual coupling position of the shaft element with the other shaft element. The second coupling portion comprises at least one coupling element having a predetermined angular position with respect to the at least one reference element.
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Patent Agency Ranking
公开(公告)号：US20180178879A1
公开(公告)日：2018-06-28
申请号：US15759757
申请日：2015-09-17
Applicant: PIONEER CORPORATION
Inventor： Nobuo MIOKA , Yasuteru KODAMA
CPC classification number: B62M3/08 , B62J99/00 , B62J2099/0013 , B62J2099/002 , B62J2099/0026 , B62J2099/0033 , B62J2099/004 , B62M3/00 , G01L1/22 , G01L1/2206 , G01L1/2262 , G01L3/247
Abstract: An information output device that can output the position of a load applied to the pedal is provided. A strain gauge is provided on the inner face of a crank of a bicycle and detects strain occurring in the crank. A cycle computer display unit displays an image showing the center position of the load applied to the pedal connected to the crank based on the tangential force and the torsional torque calculated based on the output values of the first strain gauge to the sixth strain gauge.
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公开(公告)号：US20180148126A1
公开(公告)日：2018-05-31
申请号：US15361332
申请日：2016-11-25
Applicant: Shimano Inc.
Inventor： Toshio TETSUKA , Takashi FURUYA , Shintaro MORI
Abstract: A crank arm fixing ring is basically provided with a cylindrical mounting portion and a contact portion. The cylindrical mounting portion includes an external thread configured to screw into a crankshaft. The contact portion extends radially outwardly from the cylindrical mounting portion. The contact portion is configured to contact a crank arm upon attachment of the crank arm with the crank arm fixing ring. The contact portion includes at least one cutout extending radially outwardly from the cylindrical mounting portion. The at least one cutout is configured to receive a transmission line extending through the cylindrical mounting portion.
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公开(公告)号：US20180127053A1
公开(公告)日：2018-05-10
申请号：US15803451
申请日：2017-11-03
Applicant: CHERUB CYCLE ENTERPRISE CO., LTD.
Inventor： Wen-Tai CHENG
Abstract: A dual purpose cycle includes a frame unit, a wheel unit, a hub unit, and two crank arm units. The wheel unit includes a front wheel rotatably mounted to the frame unit. The hub unit surrounds an axis, extends though the front wheel, and includes opposite mounting portions respectively disposed at two opposite sides of the front wheel. Each of the mounting portions has an end surface facing oppositely of the front wheel, and an engaging groove indented from the end surface along the axis and having a non-circular cross-section. Each of the crank arm units includes an engaging member having a non-circular cross section, and removably and engagingly inserted into the engaging groove of a respective one of the mounting portions.
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公开(公告)号：US20180057106A1
公开(公告)日：2018-03-01
申请号：US15251777
申请日：2016-08-30
Applicant: Shimano Inc.
Inventor： Tooru IWAI , Tetsu NONOSHITA , Toyoshi YOSHIDA
Abstract: A bicycle crank arm is basically provided that includes a first structural member and a second structural member attached to the first structural member. The first structural member is made of a first material including a non-metallic material. The second structural member is made of a second material that is different from the first material.
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公开(公告)号：US20180043203A1
公开(公告)日：2018-02-15
申请号：US15364005
申请日：2016-11-29
Applicant: VIVASPORTS CO., LTD.
Inventor： KYUNG WOO SEOL
CPC classification number: A63B21/159 , A63B21/157 , A63B22/0605 , B62K23/02 , B62M1/24 , B62M1/36 , B62M3/00
Abstract: A transmission device is provided for bodybuilding devices or bicycles, including an axle that is operatively coupled to a sprocket assembly for collaborative operation. Two cranks are provided, having contact surfaces including one way bearing mounted thereto for fitting to two ends of the axle. Two clutch control assemblies are controllable through a wire control assembly such that the clutch control assemblies are selectively engageable with or disengageable from two cranks respectively to set the cranks in an operation mode of regular bicycle pedaling or an operation mode of one side pedaling alone or two side parallel pedaling. An important feature is that the wire control assembly is of an arrangement involving a mateable combination of two halves of which the parts are made of plastics, where assembly for centering is achieved with recess-projection engagement for better assembly accuracy.
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