The invention relates to the field of foldable bicycles, in particular to a portable foldable bicycle or electric bicycle frame which is mainly characterized in that a front frame (2) is made of plates or pipes or a combination of the plates or the pipes, and the front frame (2) is formed by superposing one or more (one or more) blocks and is connected with a front shaft sleeve (1) and a front hinge (4); the rear frame (8) is made of plates or pipes or a combination of the plates or the pipes, the rear frame (8) is formed by superposing a single piece or a plurality of pieces and is connected with the rear hinge (6) and the seat tube (10), the rear frame (8) is in a C shape or a flat and inverted V shape or a combination of the C shape and the flat and inverted V shape, and the seat tube (10) is installed behind the rear shaft sleeve (9). When the rear frame (8) is made of a plate, the gravity borne by the seat tube (10) is transmitted to the middle of the rear frame (8) through the C-shaped or inverted V-shaped upper end of the rear frame (8), and when the rear frame (8) is made of a pipe, the gravity borne by the seat tube (10) is transmitted to the middle of the rear frame (8) through the connecting tube (12).
本发明涉及一种可折叠自行车领域,尤其是轻便可折叠自行车或电动自行车车架,主要特征是:前架(2)采用板材或管材或及其组合,前架(2)为单块或多块(单根或多根)叠加与前轴套(1)和前合页(4)连接;后架(8)采用板材或管材或及其组合,后架(8)为单块或多块(单根或多根)叠加与后合页(6)和座管(10)连接,后架(8)形状如“C”字形或平倒的“V”字形或及其形状组合,座管(10)安装于后轴套(9)的后面,后架(8)为板材时座管(10)上受到的重力通过后架(8)“C”字形或平倒的“V”字形上端传递到后架(8)的中间,后架(8)为管材时座管(10)上受到的重力通过连接管(12)传递到后架(8)的中间。
Bicycle or electric bicycle frame
一种自行车或电动自行车车架
2024-04-05
Patent
Electronic Resource
Chinese
IPC: | B62K Fahrräder , CYCLES |