A modern bicycle drivetrain includes a chain and a plurality of sprockets, where the chain is moved between the respective sprockets by derailleur. Although these systems are readily accessible by a user for maintenance, they are also readily malfunctioning, such as chain disengagement or derailleur mechanical malfunction. A gearbox (2) for a bicycle is proposed that solves at least this problem, the gearbox (2) comprising: an input gear (8) configured to receive a drive input and to rotate in a first plane about a first axis of rotation; an output gear (4) configured to rotate about a second axis of rotation in a second plane different from the first plane; a plurality of drive transmitting devices intermediate the input gear (8) and the output gear (4), each drive transmitting device (26) comprising a first gear (44) engaged with the input gear (8), a second gear (46) engaged with the output gear (4), and a shaft (58) therebetween, each drive transmitting device (26) being configurable between a locked configuration in which the first gear (44) engages with the input gear (8), and an unlocked configuration in which the second gear (46) engages with the output gear (4), rotation of one of the first gear (44) and the second gear (46) causes rotation of the other of the first gear (44) and the second gear (46) such that drive between the input gear (8) and the output gear (4) is enabled, and an unlocked configuration in which the first gear (44) and the second gear (46) rotate independently of each other thereby disabling drive from the input gear (8) to the output gear (4); and selection means (71) for selecting one of the plurality of drive transmission means (26) and reconfiguring the selected drive transmission means (26) between an unlocked configuration and a locked configuration.

    现代脚踏车传动系统包括链条和多个链轮,其中,链条通过拨链器在各个链轮之间移动。虽然这些系统易于被使用者接近以进行维护,但是它们也易于发生故障,诸如链条脱离或拨链器机械故障。提出了一种用于自行车的齿轮箱(2),其解决了至少该问题,齿轮箱(2)包括:输入齿轮(8),其被构造为接收驱动输入并且在第一平面中绕第一旋转轴线旋转;输出齿轮(4),其被构造为在不同于第一平面的第二平面中绕第二旋转轴线旋转;多个驱动传递装置,其位于输入齿轮(8)与输出齿轮(4)中间,各个驱动传递装置(26)包括与输入齿轮(8)接合的第一齿轮(44)、与输出齿轮(4)接合的第二齿轮(46)和其间的轴(58),各个驱动传递装置(26)可在锁定配置与解锁配置之间配置,在锁定配置中,第一齿轮(44)和第二齿轮(46)中的一个的旋转引起第一齿轮(44)和第二齿轮(46)中的另一个的旋转,使得输入齿轮(8)与输出齿轮(4)之间的驱动被启用,在解锁配置中,第一齿轮(44)和第二齿轮(46)彼此独立地旋转,从而禁用从输入齿轮(8)到输出齿轮(4)的驱动;以及选择装置(71),其用于选择多个驱动传递装置(26)中的一个,并使得所选择的驱动传递装置(26)在解锁配置和锁定配置之间重新配置。


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    Title :

    Gearbox


    Additional title:

    齿轮箱


    Contributors:

    Publication date :

    2025-05-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16H Getriebe , GEARING / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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