公开(公告)号：US11667350B2

公开(公告)日：2023-06-06

申请号：US17108535

申请日：2020-12-01

Applicant: SRAM, LLC

Inventor： Jih-Hung Chang

IPC: B62M9/126 ,  B62M9/16 ,  B62M9/1244 ,  B62M9/1248 ,  B62K19/18 ,  B62M9/128 ,  B62L3/00

CPC classification number: B62M9/126 ,  B62K19/18 ,  B62M9/128 ,  B62M9/1244 ,  B62M9/1248 ,  B62M9/16 ,  B62L3/00

Abstract: A bicycle rear derailleur includes a movable member and a chain guide assembly rotatably connected to the movable member. The bicycle rear derailleur also includes a pivot member non-rotatably coupled to the chain guide assembly and having an outer annular surface, a biasing device configured to bias the chain guide assembly in a first rotational direction relative to the movable member, and a damper device disposed between the chain guide assembly and the movable member. The damper device is operable to apply a damping force to the chain guide assembly when the chain guide assembly rotates in a second rotational direction relative to the movable member. The damper device includes a friction device that is radially inner relative to the biasing device. The friction device includes a friction member having at least one friction surface biased against and in frictional engagement with the pivot member.

公开(公告)号：US20210155316A1

公开(公告)日：2021-05-27

申请号：US16697204

申请日：2019-11-27

Applicant: Shimano Inc.

Inventor： Naoki FUJIMOTO ,  Tsuyoshi FUKUMORI

IPC: B62M9/1246 ,  B62M9/1248 ,  B62M9/1242

Abstract: A derailleur comprises a base member, a movable member, a linkage structure, a pulley assembly, and a rotational force control structure configured to control rotational force of the pulley assembly relative to the movable member. The pulley assembly is pivotally movable relative to the movable member about a pivot axis in first and second directions. The pulley assembly is configured to move in the first direction upon moving from a second pivotal position toward a first pivotal position. The rotational force control structure includes a cam member having a first cam surface, an abutment member configured to abut the first cam surface, and a biasing member configured to bias the abutment member. The abutment member is configured to abut the first cam surface by the biasing member to apply first additional force to the pulley assembly in the first direction while the pulley assembly is in the first pivotal position.

公开(公告)号：US20210070394A1

公开(公告)日：2021-03-11

申请号：US16563506

申请日：2019-09-06

Applicant: SHIMANO Inc.

Inventor： Tsuyoshi Fukumori

IPC: B62M9/122 ,  B62M25/08 ,  B62M9/1248

Abstract: A bicycle derailleur comprises a base member, a movable member, a pulley assembly, a rotational-force adjustment structure, an electric actuator, and a controller. The rotational-force adjustment structure is at least partly disposed between the movable member and the pulley assembly so as to apply resistance to rotation of the pulley assembly relative to the movable member. The electric actuator is configured to operate the rotational-force adjustment structure. The controller is configured to control the electric actuator based on a driving-force related information.

公开(公告)号：US10814934B2

公开(公告)日：2020-10-27

申请号：US15846667

申请日：2017-12-19

Applicant: CAMPAGNOLO S.r.l.

Inventor： Paolo Pasqua

IPC: B62M9/1242 ,  B62M9/1248 ,  B62M9/126 ,  B62M9/125 ,  B62M9/121 ,  B62M9/1246 ,  B62M9/124

Abstract: A rear derailleur of a bicycle is disclosed. The rear derailleur includes a four-bar linkage. A fixing pin is received in a blind inner cavity of a base body and a fixing screw is constrained to a frame. A spring loading insert is arranged in the blind inner cavity. The base body is rotatable with respect to the spring loading insert. Connection members are inserted in seats formed on the fixing screw and on the spring loading insert to axially constrain the fixing screw and the spring loading insert. A toothed sector is mounted coaxially to the spring loading insert and is active on a sprocket which is active on the base body. A torsion spring is active between the spring loading insert and the toothed sector and is configured to constrain the spring loading insert and the toothed sector in rotation during controlled movements of the chain guide.

公开(公告)号：US10703442B2

公开(公告)日：2020-07-07

申请号：US15650672

申请日：2017-07-14

Applicant: Shimano Inc.

Inventor： Atsuhiro Emura ,  Shouta Suyama

IPC: B62M9/126 ,  B62M9/1242 ,  B62M9/124 ,  B62M9/1248 ,  B62M25/02

Abstract: A bicycle rear derailleur is basically provided with a chain guide and an indicator. The chain guide includes a guide pulley. The indicator is provided on the chain guide such that the indicator disposed on or in an outer periphery of the chain guide. The indicator is indicative of a setting position of an outer circumference of a sprocket of a bicycle rear sprocket assembly relative to the guide pulley.

公开(公告)号：US20170113760A1

公开(公告)日：2017-04-27

申请号：US14992982

申请日：2016-01-11

Applicant: LEE CHI ENTERPRISES CO., LTD. ,  The Cycle Group Inc.

Inventor： Yen-Chi LIN ,  Shan-Lin WU ,  Yu-Hung PAN

IPC: B62M9/1248 ,  B62M9/124

CPC classification number: B62M9/1248 ,  B62M9/124 ,  B62M9/125 ,  B62M9/128

Abstract: A bicycle rear derailleur has a mounting base, a moveable base, and a friction assembly. The moveable base has an axle. The friction assembly is mounted in the moveable base and has a driving disk, a driven disk, multiple rotating members, and a friction member. The driving disk is connected with the axle in a non-rotatable manner. The driven disk is rotatably and axially moveably mounted in the moveable base. Each disk has multiple curved rotating member guiding recesses. Each rotating member guiding recess of the driving disk has a depth decreased along a first rotating direction. Each rotating member guiding recess of the driven disk has a depth decreased along a second rotating direction. The rotating members are mounted respectively in the rotating member guiding recesses. The friction member is mounted in the moveable base in a non-rotatable manner and abuts the driven disk.

公开(公告)号：US20160304162A1

公开(公告)日：2016-10-20

申请号：US15189597

申请日：2016-06-22

Applicant: Shimano, Inc.

Inventor： Takeshi Takachi ,  Atsushi Iizuka ,  Nobukatsu Hara

IPC: B62M9/16 ,  B62M9/1248

CPC classification number: B62M9/16 ,  B62M9/121 ,  B62M9/1248 ,  B62M2009/007 ,  B62M2009/12406

Abstract: A bicycle derailleur comprises a base member adapted to be mounted to a bicycle; a movable member movably coupled to the base member; a chain guide coupled to the movable member through a pivot shaft, wherein the chain guide is coupled for rotation around a rotational axis (X); a biasing element that biases the chain guide in a selected rotational direction around the rotational axis (X); and a resistance applying unit that applies a resistance to rotational movement of the chain guide in a direction opposite the selected rotational direction. The resistance applying unit includes a roller clutch disposed between the movable member and the pivot shaft, wherein the roller clutch includes a roller; an intermediate member disposed between the roller and the pivot shaft, wherein the intermediate member moves relative to the pivot shaft; and a first friction member including a first contact area that is substantially perpendicular to the rotational axis (X), wherein the first friction member communicates rotational force between the pivot shaft and the intermediate member.

Abstract translation: 自行车拨链器包括适于安装到自行车上的基座构件; 可动构件，其可移动地联接到所述基座构件; 链条引导件，其通过枢转轴联接到所述可移动构件，其中所述链条引导件联​​接成围绕旋转轴线（X）旋转; 偏置元件，其围绕所述旋转轴线（X）沿着选定的旋转方向偏压所述链条引导件; 以及电阻施加单元，其在与所选择的旋转方向相反的方向上施加对所述链条引导件的旋转运动的阻力。 电阻施加单元包括设置在可动构件和枢转轴之间的滚子离合器，其中滚子离合器包括滚子; 设置在所述辊和所述枢转轴之间的中间构件，其中所述中间构件相对于所述枢转轴移动; 以及包括基本上垂直于所述旋转轴线（X）的第一接触区域的第一摩擦构件，其中所述第一摩擦构件在所述枢轴和所述中间构件之间连通旋转力。

公开(公告)号：US20160304160A9

公开(公告)日：2016-10-20

申请号：US14581733

申请日：2014-12-23

Applicant: SRAM Deutschland GmH

Inventor： Jih-Hung Chang

IPC: B62M9/1248 ,  B62M9/16 ,  B62M9/126

CPC classification number: B62M9/1248 ,  B62M9/121 ,  B62M9/126 ,  B62M9/16

Abstract: A bicycle rear derailleur includes a base member mountable to a bicycle frame. A movable member is movably coupled to the base member. A chain guide assembly is rotatably connected to the movable member for rotation about a rotational axis. A biasing device is configured to bias the chain guide assembly in a first rotational direction relative to the movable member. A damper assembly is disposed between the chain guide assembly and the movable member to apply a damping force to the chain guide assembly when the chain guide assembly rotates in a second rotational direction opposite to the first rotational direction. The damper assembly includes a one-way roller clutch assembly including radially inner and outer clutch members and roller elements acting between the inner and outer clutch members and a friction device including a friction biasing device and friction surfaces axially biased against and in frictional engagement with the one-way roller clutch assembly by the friction biasing device. The friction surfaces are axially offset with reference to the rotational axis relative to the roller elements.

公开(公告)号：US6135904A

公开(公告)日：2000-10-24

申请号：US181368

申请日：1998-10-28

Applicant: Ryan G. Guthrie

Inventor： Ryan G. Guthrie

IPC: B62M9/122 ,  B62M9/1242 ,  B62M9/1248 ,  B62M9/126 ,  F16H7/08

CPC classification number: B62M9/126 ,  B62M9/122

Abstract: A damper that functions in cooperation with the chain take-up to introduce improved smoothness during bicycle operation. The hydraulic damper is a cylinder that has a spring driven piston mounted in it. The spring is controlled by a fluid within the cylinder. This fluid smoothes out or otherwise controls jerky or other unwanted vibration by applying fluid forces to the take-up piston so that a relatively constant pressure is applied against the drive chain. This allows that chain to flow over the sprockets and chain slides without, looseness, unintentional gear shifts or objectionable noise.

Abstract translation: 与链条接合相配合的减震器，在自行车操作过程中引入更好的平滑度。 液压阻尼器是安装在其中的弹簧驱动活塞的气缸。 弹簧由气缸内的流体控制。 该流体通过向吸收活塞施加流体力来平滑或者以其它方式控制干扰或其它不期望的振动，使得对驱动链施加相对恒定的压力。 这样可以使链条在链轮和链条滑块上流动，而不会松动，无意的换档或令人反感的噪音。

公开(公告)号：US6093122A

公开(公告)日：2000-07-25

申请号：US5214

申请日：1998-01-09

Applicant: Scott A. McLaughlin ,  Brian T. Jordan ,  Kevin F. Wesling ,  John D. Cheever

Inventor： Scott A. McLaughlin ,  Brian T. Jordan ,  Kevin F. Wesling ,  John D. Cheever

IPC: B62M9/1242 ,  B62M9/1248 ,  B62M9/127 ,  F16H63/00 ,  F16H7/00

CPC classification number: B62M9/1248 ,  B62M9/1242

Abstract: A parallelogram link mechanism of a bicycle derailleur has a coil spring tensioned from a first axis of the parallelogram to another axis thereof that is diametrically opposed to the first axis. The coil spring exerts a primary spring force against the rider-supplied derailleur actuation force throughout the actuation range of the derailleur. A secondary member exerts a secondary force throughout a portion of the actuation range of the derailleur, producing a substantially constant resultant actuation force experienced by the rider. The secondary member can take various forms, including an abutment member which selectively abuts the coil spring at an angle to the spring axis; a second spring internal to the first; a member which is attached to spaced-apart coils of the coil spring to limit their linear expansion; and an internal member which limits constriction of a segment of the coil spring inwardly toward the spring axis.

Abstract translation: 自行车拨链器的平行四边形连杆机构具有从平行四边形的第一轴线向与第一轴线径向相对的另一轴线张紧的螺旋弹簧。 螺旋弹簧在拨链器的整个致动范围内施加抵抗骑车人提供的拨链器致动力的主弹簧力。 辅助构件在拨链器的致动范围的整个部分中施加次级力，从而产生驾驶员经历的基本恒定的结果致动力。 辅助构件可以采取各种形式，包括以与弹簧轴成一定角度选择性地邻接螺旋弹簧的邻接构件; 第一个弹簧内部的第二个弹簧; 连接到螺旋弹簧的间隔开的线圈以限制其线性膨胀的构件; 以及内部构件，其限制螺旋弹簧的段的向内朝向弹簧轴线的收缩。