The creation is an adapter device, and it can make the tandem bicycle keep the mobility and stability of one-seat bicycle.
With the evolution of bicycle, many different kinds of bicycles appear. Some are for energy-saving purpose, and some are for leisure and entertainment purpose. Furthermore, a traditional one-seat bicycle can be transformed into a two-seat or larger tandem bicycle for amusement and energy-saving function.
Although riding a tandem bicycle can bring more fun, it may be difficult for actual practice. As riders' paces are not identical, and riders could interfere with each other. If one rider, for example, rides the bicycle harder, the balance of the bicycle could be destroyed, and the chain of bicycle may not operate smoothly. Furthermore, the structure of tandem bicycle may make the body of bicycle become longer, and it may not be easy to make a turn or it may affect the balance in riding. Even, it will increase risks and difficulties in riding if people ride the bicycle at a low speed.
Therefore, solving the above problem and improving the mentioned defects are the purpose and research direction of the creator of the adapter device and related manufacturers in the industry.
The purpose of the creation is to combine the mobility of one-seat bicycle and the stability of tricycle. The above purpose can be reached by the creation. The creation is an adapter device for tandem bicycle. The adapter device combines the bicycle and the connected bicycle. The adapter consists of the universal joint and the twist apparatus. The universal joint includes the first axle and the second axle. The first axle is connected to the scheduled place of the seat tube of bicycle. The flexible component in the twist apparatus is used to connect the second axle. The second axle goes through the fixer. The fixer is used to interfere with the connecting rod, which is limited by flexible component, and is connected to the schedule place of connected bicycle by the twist apparatus. When people start their bicycle riding or ride bicycles at low speed, the adapter device can make the bicycle more stable and improve the unbalance problem about left and right deviation. Therefore, it can increase the safety of the tandem bicycle.
The universal joint in the creation can eliminate the reaction force when a rider makes a turn on a tandem bicycle or eliminate the reaction force caused by rugged roads. When the centrifugal force is larger than the torque limitation in riding at high speed, the universal joint can let the bicycle make a turn stably to further improve the safety of tandem bicycle.
The use of twist apparatus in the creation can improve the stability of preceding body, and thereby enhances the mobility of tandem bicycle.
The effect of the creation: Under low speed (5 km/h˜0), when the preceding body of bicycle can not keep balance, the twist apparatus in the creation has the function of torque limit to prevent the bicycle from tilting, so this way will keep the stability of tricycle.
The effect of the creation: Under medium speed (10˜5 km/h), when the preceding body of bicycle can not be controlled well, the twist apparatus can use the function of torque limitation to assist the balance of bicycle and improve the stability of tricycle.
The effect of the creation : Under high speed (above 10 km/h), when there is demand of “lateral tilt” in the preceding body of bicycle, even the torque is over the limitation, it won't affect the mobility of tandem bicycle.
No matter under stopped status, low speed, medium speed, or high speed, the creation can keep the balance of bicycle, and has a complete function.
In order to reach to the above purpose and function, the features of technology and structure, which are adopted in the creation, are well explained by the figures.
According to the
The clip fixer (2020) in the first axle (202) is installed to the scheduled place of the seat tube (102).
The connected bicycle (12) can be equipped with plural wheels (120) (two, three, or above four wheels)
The expansion structure (122) is in the connected bicycle (12). The expansion structure (122) can fold or unfold the bicycle (12), and the distance between two wheels can also be adjusted by the device.
The tenons in the twist apparatus (22) are used to fix the flexible component (220) Based on the structure and design mentioned above, the detailed instruction of the use of the creation is as below, please also refer to the
Please refer to the
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The description above is just the best status of the execution of the creation, and it won't limit the patent range of the creation. Based on the instruction or content in the figures of the creation, any applications from the modification of the creation should be included in the range of the patent.
In summary, the creative adapter device can really reach to its effectiveness and function in execution. This is a good and practical creation, which satisfies the requirement of patent, and so the application is submitted based on all related requirements.