Patent Application
20130078028
1. Field of the Invention
The present invention relates to a connecting mechanism, and more particularly to a connecting mechanism for bicycle auxiliary wheels.
2. Description of the Related Art
Currently, the mechanism design of connecting a bicycle auxiliary wheel with a bicycle is a fixed design. In another word, when a user rides the bicycle with the auxiliary wheel, the bicycle cannot incline by a random angle. The connecting mechanism of the auxiliary wheel is unable to allow the rider to train sense of balance step by step, resulting in difficult learning bicycle riding.
In view of the shortcomings of the prior art, the inventor(s) of the present invention based on years of experience in the related industry to conduct extensive researches and experiments, and finally developed a connecting mechanism as a principle objective to overcome the problem that when a rider rides a kind of the bicycle equipped with a fixed type connecting mechanism that is between the bicycle auxiliary wheel and the bicycle, the goal of training sense of balance through gradually horizontal swing can not be reached.
To achieve the foregoing objective, a connecting mechanism is provided and comprises a first rod body, a second rod body, a baffle cover, a spring and a rotary cover. The first rod body comprises a first side wall disposed to an end of the first rod body and defining a containing space, wherein a first through hole further passes through the first side walls and a first fixing base is disposed between another end of the first rod body and the containing space. The surface of the second rod body has a first screw thread and a second through hole is disposed to an end of the second rod body. One end of the second rod body is contained in the containing space and the second rod body pivots around the first through hole on the first side walls by way of aligning the second through hole with the first through hole. The baffle cover is disposed on the second rod body and one end of the baffle cover is disposed with a second fixing base. The spring is connected to the first fixing base through one end of the spring and connected to the second fixing base through another end of the spring. The rotary cover is hollow and has a second screw thread on the inner surface thereof. The second screw thread of the rotary cover is fit to the first screw thread of the second rod body and the rotary cover is disposed on the baffle cover.
The connecting mechanism of the invention has one or more advantages as the following:
The foregoing and other technical characteristics of the present invention will become apparent with the detailed description of the preferred embodiments and the illustration of the related drawings.
With reference to
A surface of the second rod body 11 has a first screw thread 110. A second through hole 111 is disposed to an end of the second rod body 11. One end of the second rod body 11 is contained in the containing space 1000. The second rod body 11 aligns the second through hole 111 with the first through hole 1003, such that a screw bolt 1004 can pass through the first through hole 1003 and the second through hole 111 to act as a central axis for the second rod body 11 to pivot around. Thus, the second rod body 11 can perform limited rotation in the containing space 1000 by taking the screw bolt 1004 as an axle. A face of the baffle cover 12 has a second fixing base 120. The second fixing base 120 is fit to the second rod body 11 and opposite to the first fixing base 101. The first fixing base 101 and the second fixing base 120 can form protrusions or recesses (as shown in
With connection and function of the foregoing mechanical member, the loosening and tightening statuses of the spring 13 can be regulated by rotating the rotary cover 14. When the spring 13 is restricted to the tightening status, the second rod body 11 is unable to be rotated and retained in the containing space 1000. Relatively, after the rotary cover 14 is upwardly rotated, the spring 13 starts having flexibility to perform limited reciprocation. Another end of the second rod body 11 inclines toward another end of the first rod body 10 in a limited condition.
With reference to
The connecting mechanism 1 of the invention further comprises a plate body 15. An end of the plate body 15 is extended with a third side wall 150, which is a hollow cylinder and is used to connect the second rod body 11, wherein an inner side face of the third side wall 150 has a third screw thread 1500 (as shown in
With reference to
With reference to
With the connecting mechanism disclosed by the invention, the length of the spring can be regulated by rotating the rotary cover. When a child learns riding the bicycle, the angle between the bicycle 3 and the bicycle auxiliary wheel 2 is completely fixed by way of tightening up the rotary cover 4 so as to prevent the child from falling down. After the child learns riding the bicycle for a while, the rotary cover 14 is gradually released so that the bicycle 3 can horizontally incline in a limited condition, and the child can not fall over. Accordingly, the swing degree of horizontally inclining the bicycle is gradually increased to allow the rider to gradually adapt horizontal balance, thereby achieving the effect of riding the bicycle.
The invention improves over the prior art and complies with patent application requirements, and thus is duly filed for patent application. While the invention has been described by device of specific embodiments, numerous modifications and variations could be made thereto by those generally skilled in the art without departing from the scope and spirit of the invention set forth in the claims.
