| 摘要 |
A bicycle frame with a seat tube, whose upper end is designed to hold a seat pillar and at whose lower end is situated a bottom bracket shell, and to a pair of chainstays, which are essentially parallel to each other and at their front end are pivotally mounted at a first pivot point on the seat tube at a distance from the bottom bracket shell, and at their back end are connected with dropouts to hold a rear wheel axle. The invention also comprises a pair of essentially mutually parallel seatstays, which at one end are pivotally mounted at a second pivot point on the chainstays, this second pivot being situated in the region of the dropouts, and a rocker plate that has three rocker pivot points, that is a first rocker pivot point at which a second end of the seatstays is hinged, a second rocker pivot point at which this rocker plate is rotatably connected to the seat tube, namely in a region between the first pivot point and the upper end of the seat tube, and a third rocker pivot point which is hinged with a first end of a spring suspension device, the second end of which is fixed to the frame.
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