Five design strategies of folding bicycle
Folding bicycle has many potential and practical uses in daily life and leisure activities.
It is also one of the fastest-growing product categories in the bicycle industry. About 10% of the world's annual production of bicycles - about 10 million of them are folding bikes. Dr. Han Dewei, folding bike expert and founder of a Dating brand, introduced the recent development history of the folding bike to readers in detail and summarized the dazzling folding bike products in different global supply chains in terms of technology. Due to its long length, meiqi.com divided this article into several parts for serialization.
The first part mainly talks about five design strategies of folding car, which is abridged in this paper. Recent development history of the folding car
On September 16, 1887, the American inventor Emmit g. Latta applied for the first folding bicycle patent. Since then, countless inventors, manufacturers, and marketing companies in many developed countries have been trying to provide cyclists (including soldiers) with more compact or better experience folding bicycles. Some patents are of great practical value. The trend of folding bicycles in various countries has gone up and down several times. The latest trend was slowly launched by Diblasi, Raleigh, and Bickerton in the 1970s. In the 1980s, Dahang, Brompton and Montague followed by bike Friday and Birdy in the 1990s. At present, there are more than 100 folding bicycle brands in the market, and the number of brands is still growing.
Five design strategies of folding car
Since the 19th century, there have been more than thousands of patents related to folding bicycles, due to the "low" technical threshold (which may be taken for granted). But these patents become only a small part of the product, and few patents will be effectively maintained for a long time. According to the best standards considered by the inventors, many patents are about the basic strategy of frame/handlebar system folding; most of the other parts except the foot pedal, handlebar, crank, and accessories are standing objects (which is indeed the case in Economics). These different strategies can be roughly divided into five categories, occasionally mixed.
The strategy of horizontal folding in the middle of the frame is the most intuitive,
so it occupies the majority of folding bicycle market today. Main models: Raleigh and Bickerton in the 1970s; Dating and Eurasian horses in the 1980s; KHS and tern in the early 21st century.
I n the 1970s, Raleigh Twenty folding bike, this 20-inch bike, though large in size after folding, rides stably.
2. The horizontal axis is vertically folded to achieve the effect of small floor area, similar to the vertical scissors. Main models: picnicker of Bridgestone in the 1970s, and rapid in the 1990s.
For faster folding speed. Main models: picker in the 1970s, Jifo & eezz in the early 21st century.
Picnica in Bridgestone in the 1970s. The 14 inch bike is soft to ride, but better than the original Bickerton; it folds upright quickly and covers a moderate area.
3. Turn and fold under the back triangle for the most compact volume; for the moderate folding speed.
Main models: debasi in the 1970s, Brompton in the 1980s, curl in the early 20th century.
In the 1980s, Brompton 17 inch folding bicycle, probably the most compact folding bicycle in decades, has a good riding performance. The only defect is that the rear suspension pivot in the unconventional position will cause the swing during riding.
4. In order to make the frame adjustable to adapt to different riders, the telescopic frame pipe shall maintain the strength/rigidity of the frame. Main models: gates in the early 21st century.
Gentex's folding is remarkable, but the feedback is not so good.
15 years later, is it still in production?
5. All parts of the bicycle can be disassembled to maintain the maximum frame strength / rigidity; in order to obtain more manageable storage/transportation factors.
Because the e-folding bicycle is relatively heavy, the method is particularly effective for turning the e-folding bicycle into small pieces for convenient transportation or storage.
Main models: COMPAX in 1940s, moulten in 1970s, Montague in 1980s, bike Friday in 1990s, etc.
Montague，In addition to the relatively weak torsional coupling between the five-way pipe and the head pipe, the 26 inch folding bike is stable in riding, which is a part of the folding "folding" compact.
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