The invention relates to the field of the bicycle industry and concerns a method for manufacturing and building frames for bicycles or kick scooters. The technical result of the invention is to reduce the time and increase the productivity of bicycle frame manufacture, which is achieved by mounting a press die in a press tool, then mounting a blank made of a sheet material between the mating parts of the press die, then activating the press tool and carrying out a pressing operation in which the sheet material blank is simultaneously cut and deformed in accordance with the press die, then bending the lateral portions of the blank of the frame so that apertures for a bottom bracket and dropouts for securing the rear wheel axle are disposed in axial alignment with one another, and also rounded portions on the ends of tongues form a head tube.

    本发明涉及自行车工业领域,并涉及一种自行车或踏板车车架的制造和设计方法。本发明的技术效果是通过以下方式缩短自行车车架的制造时间并提高其生产率:将压模安装在冲压工具中;然后在所述压模的配件之间安装由片材制成的坯料;之后,启动所述冲压工具并执行冲压操作,在所述冲压操作中,依据所述压模在切割由所述片材制成的所述坯料的同时使其变形;然后弯曲所述车架的所述坯料的侧部,使得用于底部支架的孔和用于固定后轮轮轴的凹口彼此轴向对齐,并使舌形件端头上的圆形部分形成头管。


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    Title :

    METHOD FOR MANUFACTURING A PRESSED BICYCLE FRAME


    Additional title:

    冲压自行车车架的制造方法


    Contributors:

    Publication date :

    2021-07-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62K Fahrräder , CYCLES / B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL , Bearbeiten oder Verarbeiten von Blechen, Metallrohren, -stangen oder -profilen ohne wesentliches Abtragen des Werkstoffs



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