Patent Application
20070085413
1. Field of the Invention
The present invention relates to a product of bicycle, and more particularly to a spoke assembling structure for a bicycle wheel.
2. Description of the Prior Art
Conventional spoke assembling structures generally includes two types. A first type spoke assembling structure as shown in
The disadvantages of the conventional spoke assembling structures are explained as follows:
Firstly, the spokes have to burden a great weight since the bicycle' weight and the rider's weight are all loaded on the spokes, in this case, the only way of increasing the loading capacity of the bicycle is to increase the number of the spokes. However, as shown in
Secondly, if the spokes are not adjusted appropriately, the wheel is liable to distortion and will wobble around its hub after a certain time of use.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages.
The primary objective of the present invention is to provide a spoke-assembling structure for a bicycle wheel, wherein both ends of the assistant spokes are directly anchored on the rim of the wheel and are arranged in a parallel manner in pairs around the hub. Such arrangements not only can improve the structural strength of the bicycle wheel, but also can reduce the drag coefficient of the wheel because the number of the spokes is relatively decreased.
The secondary objective of the present invention is to provide a spoke-assembling structure for a bicycle wheel, wherein both ends of the assistant spokes are directly anchored on the rim of the wheel, so that the user only needs to rotate the nipple at any end of the assistant spokes when truing the wheel.
The present invention will become more obvious from the following description when taken in connection with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiments in accordance with the present invention.
a is an enlarged view of a part of
a is an enlarged view of
Referring to
In the wheel 30 are additionally formed a plurality of assistant apertures 32 for anchoring a plurality of assistant spokes 50, and both end of the assistant spokes 50 are anchored on the rim of the wheel 30. The vertical distances from the respective assistant spokes 50 to the hub 10 are the same. At each end of the assistant spokes is arranged a nipple. The arrangement of the assistant apertures 32 and the assistant spokes 50 can be varied according to need.
For a better understanding of the present invention, its operation and function, reference should be made to
It will be noted that the vertical distances from the respective assistant spokes 50 to the hub 10 are the same, and viewing from a side of the wheel 30, the assistant spokes 50 are arranged in a random crisscross manner.
On the other hand, at an end of the assistant spokes 50 is mounted a nipple 40 that can be rotated to true the wheel 30. The conventional V-shaped arrangement of the spokes will not only increase the number of the spokes 21, increasing the drag coefficient, but also the user has to rotate more nipples 40 when truing the wheel. The present invention makes the wheel-truing job much easier, since both ends of the assistant spokes 50 are anchored on the wheel 30 directly, and the user only needs to rotate the nipple 40 at any end of the assistant spokes 50 when truing the wheel. Furthermore, the assistant spokes 50 are anchored in pairs on the wheel 30, this makes the wheel 30 maintain a high roundness.
Referring then to
While we have shown and described various embodiments in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
