The invention provides an electric derailleur with overload protection, which comprises a fixed base, a driving device, a movable part, a chain guide part and a connecting rod, the movable part is configured to be movable relative to the fixed base, the chain guide part is rotatably connected to the movable part, and two ends of the connecting rod are respectively pivotally connected with the movable part and the fixed base; the driving device comprises a shifting piece which is configured to be capable of driving the movable piece to move relative to the fixed base; an overload protection device is arranged between the shifting piece and the movable piece, and the shifting piece is connected with the movable piece in a power transmission mode through the overload protection device at least in one movement direction. The overload protection device is configured to enable the power transmission connection between the shifting piece and the movable piece to be separated when the load borne by the movable piece exceeds a load threshold value. According to the electric derailleur with the overload protection function, the stress on the movable part can be improved.
本发明提供一种具有过载保护的电动拨链器,包括固定基座、驱动装置、活动件、链条导引件和连杆,活动件配置成相对于固定基座可活动,链条导引件可旋转地连接于活动件,连杆的两端分别与活动件和固定基座枢转连接;驱动装置包括:拨动件,其配置成能够驱动活动件相对于固定基座活动;拨动件和活动件之间设置有过载保护装置,拨动件至少在一个运动方向上通过过载保护装置与活动件可动力传递地连接;过载保护装置配置成能够在活动件承受的负载超过负载阈值时,使得拨动件和活动件之间的动力传递连接相脱离。本发明提供的具有过载保护的电动拨链器,可改善活动件上的受力。
Electric derailleur with overload protection
具有过载保护的电动拨链器
2023-11-14
Patent
Electronic Resource
Chinese