Two-wheel/three-wheel bicycle frame steered by means of buttocks
A bicycle frame and three-wheel technology, applied in the field of three-wheel bicycle frame and two-wheel, can solve the problems of heavy weight, complexity, inconvenience, etc.
Inactive Publication Date: 2012-06-13
欧阳文秀
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- Summary
- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0002] At present, the known foldable bicycle racks all rely on the hand to grasp the direction, so when folding, they are folded between the two wheels, and the area is large.
And they all drive the rear wheels, which is complicated, heavy and inconvenient
Method used
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Embodiment Construction
[0009] The specific embodiment, the folding tube of handrail stretches forward, loads on handrail, just as the handlebar of bicycle, the front fork pipe of bicycle stretches in the front face pipe and fixes, and seat pipe stretches in the front fork pipe and fixes, and loads onto seat, When the crossbeam is pulled back, the front face pipe and the connecting rod at the back of the crossbeam are just at the same slope, and the pipe collar at the lower end of the crossbeam fixes the rear wheel pipe of the rear wheel.
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The invention discloses a two-wheel / three-wheel bicycle frame steered by means of buttocks. When the two-wheel / three-wheel bicycle frame stretches, front and back wheels are arranged more reasonably, and a saddle pipe extends into a front fork pipe. When folded, the two-wheel / three-wheel bicycle frame becomes smaller. Direction is controlled through buttocks, so that various smaller foldable frames adapting to various persons can be manufactured.
Description
Technical field [0001] The invention relates to a two-wheel and three-wheel bicycle frame whose direction is controlled by the buttocks. Background technique [0002] At present, the known foldable bicycle racks all rely on hands to grasp the direction, so they are folded between the two wheels when they are folded, and the area is large. And they all drive the rear wheels, which is complex, heavy and inconvenient. Contents of the invention [0003] The present invention can be folded smaller, and can drive the front wheel to grasp the direction by the buttocks. A steel pipe with a diameter of 100mm-200mm in diameter is made into the front tube of the bicycle, and one upper and lower tubes are welded on the front of the front tube. Base, each side of the base has a round hole corresponding to 8mm, the folding tube of the handrail is a steel pipe with a diameter of 28.6mm or 25.4mm, and there are also two bases, the lower base of the folding tube of the handrail is fixed o...
Claims
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Inventor 欧阳文秀
Owner 欧阳文秀
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