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1. 发明申请

WO1986005247A1 AUTOMATIC DERAILLEUR SHIFTER 审中-公开
标题翻译：自动DERAILLEUR SHIFTER
公开(公告)号：WO1986005247A1
公开(公告)日：1986-09-12
申请号：PCT/US1985002464
申请日：1985-12-13
申请人： CHAPPELL, Gilmore, H.
IPC分类号： F16H09/00
CPC分类号： B62M9/1248 , B62M9/123 , B62M9/125
摘要： An automatic shifter for derailleur which includes a pivot arm (42) secured to the frame (38) of the bicycle in a stationary relationship. A shifter arm (44) pivotally secured to the pivot arm in a manner to rotatively move relative to the frame, a follower (58) attached to the shifter in rotative engagement, an operating spring biasing between the pivot arm and the shifter arm to continuously urge the follower against the upper run of the bicycle chain to depress the chain; a stabilizer (88) interconnected between the pivot arm and the shifter arm in a manner to allow substantially unrestricted counter-clockwise rotation of the shifter arm and to deter or restrict clockwise rotative movement of the shifter arm and a flexible cable (78) interconnecting the shifter arm with the derailleur whereby the derailleur will be automatically operated to index the chain across the small diameter cluster gears in response to rotational movement of the shifter arm as caused by interaction of the bicycle chain and the follower.

2. 发明申请

WO1992020567A1 DERAILLEUR FOR BICYCLE 审中-公开
公开(公告)号：WO1992020567A1
公开(公告)日：1992-11-26
申请号：PCT/JP1992000603
申请日：1992-05-11
申请人： MAEDA INDUSTRIES, LTD. , ISHIBASHI, Yasunori
发明人： MAEDA INDUSTRIES, LTD.
IPC分类号： B62M09/12
CPC分类号： B62M9/1248 , B62M9/1242
摘要： The following technical means are devised so as to improve operability in changing speeds by making small the difference in restoring elastic force between the initial deformation and final deformation of a pantograph link mechanism in a derailleur for a bicycle, as well as to make smaller and lighter the derailleur and a speed-change operation lever device. More specifically, a first pivoting member (12) of a predetermined length and a second pivoting member (13) of a predetermined length are pivotally supported at respective predetermined positions of different members of a pantograph link mechanism (7). The leading ends of these first pivoting member (12) and second pivoting member (13) are pin connected to each other so as to provide a construction in which when the above parallelogram pantograph link mechanism (7) is deformed, said first pivoting member (12) and said second pivoting member (13) are pivoted relative to said respective members on which said pivoting members are pivotally supported, and a restore spring is interposed between either said first pivoting member (12) or said second pivoting member (13) and a selected member of said respective members constituting said parallelogram pantograph link mechanism (7).

3. 发明申请

WO1992016773A1 BICYCLE GEAR SHIFTING METHOD AND APPARATUS 审中-公开
标题翻译：自行车齿轮换档方法和装置
公开(公告)号：WO1992016773A1
公开(公告)日：1992-10-01
申请号：PCT/US1992002247
申请日：1992-03-18
申请人： SRAM CORPORATION
发明人： SRAM CORPORATION , PATTERSON, Sam, H. , CHEEVER, John, D. , SHUPE, Jeffery, M.
IPC分类号： F16H09/00
CPC分类号： B62M9/1248 , B62K23/04 , B62M9/127 , B62M9/131 , B62M9/1346 , B62M25/04 , Y10T74/2045 , Y10T74/20456 , Y10T74/20462
摘要： A bicycle gear shifting system (10) having rotatable front and rear handgrip shift actuators (60, 66) operatively associated with control cables for shifting respective front and rear derailleur mechanisms. In some forms of the invention the control cable (62) is directly actuated by the handgrip rotator (60, 66). A cam on either the handgrip rotator (60, 66) is configured so as to substantially compensate for increasing force of the derailleur return spring during down-shifting.

4. 发明申请

WO1992005067A1 BICYCLE TRANSMISSION 审中-公开
标题翻译：自行车传动
公开(公告)号：WO1992005067A1
公开(公告)日：1992-04-02
申请号：PCT/US1991006946
申请日：1991-09-24
申请人： BROWNING AUTOMATIC TRANSMISSION
发明人： BROWNING AUTOMATIC TRANSMISSION , BROWNING, Bruce, W. , BROWNING, Marc, S.
IPC分类号： B62M09/12
CPC分类号： B62M9/16 , B62M9/1242 , B62M9/1248 , B62M9/125 , B62M9/131 , B62M9/14
摘要： A bicycle transmission comprises a sprocket assembly rotatably coupled to the frame of a bicycle for receiving a chain, a front and rear sprocket selector for causing the sprocket assembly to shift the chain from one sprocket to another, a sliding bracket for retractably mounting the sprocket selector to the bicycle frame, adjustment brackets for finely adjusting the front and rear sprocket selectors to correspond to the path of the sprocket assembly, and a compensator for engaging and following the chain as it is shifted between sprockets to eliminate any free chain between the compensator and the sprocket and for reentraining the chain in the event of complete derailment. In addition, the bicycle transmission may include a sprocket assembly comprising a stationary sector, a swinging sector hingedly coupled to the stationary sector, and a plurality of load bearing surfaces extending radially outwardly of the stationary sector for taking the load from the swinging sector.

5. 发明申请

WO1991010080A1 BICYCLE GEAR SHIFTING METHOD AND APPARATUS 审中-公开
标题翻译：自行车齿轮换档方法和装置
公开(公告)号：WO1991010080A1
公开(公告)日：1991-07-11
申请号：PCT/US1990007163
申请日：1990-12-06
申请人： SRAM CORPORATION
发明人： SRAM CORPORATION , PATTERSON, Sam, H.
IPC分类号： F16H09/00
CPC分类号： B62M9/1248 , B62K23/04 , B62M9/127 , B62M9/131 , B62M9/1346 , B62M25/04 , B62M25/045 , F16C1/22 , F16C2326/28 , G05G7/02 , Y10T74/2028 , Y10T74/20287 , Y10T74/2042 , Y10T74/20438
摘要： A bicycle derailleur gear shifting system having a rotatable handgrip actuator cam which is coupled with the derailleur shifting mechanism through a control cable system so as to control the derailleur mechanism. Separate actuator cams are associated with the front and rear derailleurs. For the down-shifting direction, at least the rear derailleur cam is configured so as to substantially compensate for increasing force of the derailleur return spring; so as to substantially compensate for numerous cumulative lost motions in the derailleur shifting mechanism and cable system, and for chain gap variation; and so as to overshift the chain a sufficient amount beyond the destination freewheel sprocket so that the chain will approach the destination sprocket in the same direction as it would in the up-shift direction, but not sufficient to cause a double shift, or derailling from the #1 sprocket. A front derailleur cam is configured to provide fine-tuning for ''cross-over'' riding. In one form of the invention a secondary overshift boost cam is added axially in tandem with the primary cam, and is adaptable to both the front and rear derailleur shift actuators.
摘要翻译：一种自行车拨链器换档系统，其具有可旋转的手柄致动器凸轮，其通过控制缆索系统与拨链器换档机构联接，以便控制拨链器机构。独立的执行器凸轮与前后拨链器相关联。对于下移方向，至少后拨链器凸轮构造成基本上补偿拨链器复位弹簧的增加的力; 以便基本上补偿拨链器换档机构和电缆系统中的许多累积的失去动作，以及链间隙变化; 并且使链条超出目的地空转链轮的足够数量，使得链条将沿着与上移方向相同的方向接近目的地链轮，但不足以引起双重换档，或者从＃1链轮。前拨链器凸轮配置为提供“交叉”骑行的微调。在本发明的一种形式中，次级过度升档凸轮与主凸轮并列地轴向地增加，并且适用于前变速器和后拨链器换档致动器。

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