Patent Application
20180147437
1. Field of the Invention
The present invention relates to a magnetic brake control and flywheel transmission module for an exercise bike.
2. Description of the Prior Art(s)
An exercise bike is an indoor exercise equipment that allows an exerciser to exercise indoors regardless of the weather and the environment outdoors. Therefore, the exercise bikes are popular and are widely used.
Structures and ways to use a conventional exercise bike and an ordinary bicycle are similar. One of the differences between the conventional exercise bike and the ordinary bicycle is that the conventional exercise bike is used at a fixed position and the bicycle can be ridden to move forward. Moreover, the conventional exercise bike simulates difficulties of riding the bicycle by adjusting a drag force that is applied on the conventional exercise bike, so as to control training modes. Thus, the conventional exercise bike includes a bike frame, and a flywheel transmission mechanism and a magnetic brake control mechanism assembled on the bike frame. The drag force applied on a flywheel is adjusted via the magnetic brake control mechanism.
However, structural designs of different types of the conventional exercise bikes are distinct, so the bike frames of the different types of the conventional exercise bikes are different. Therefore, spatial arrangements of the magnetic brake control mechanism and the flywheel transmission mechanism have to be designed according to the bike frames of the different types of the conventional exercise bikes. The magnetic brake control mechanism and the flywheel transmission mechanism of one type of the conventional exercise bike are unable to be used on another type of the conventional exercise bike. Manufacturers should prepare manufacturing materials for the different types of the conventional exercise bikes. Accordingly, costs for material management and inventory are high.
To overcome the shortcomings, the present invention provides a magnetic brake control and flywheel transmission module to mitigate or obviate the aforementioned problems.
The main objective of the present invention is to provide a magnetic brake control and flywheel transmission module. The magnetic brake control and flywheel transmission module includes a mounting frame, a transmission shaft, a flywheel, a pulley assembly, and a magnetic brake control assembly. The transmission shaft and the flywheel are mounted on the mounting frame. The pulley assembly is disposed between the transmission shaft and the axle of the flywheel. The magnetic brake control assembly is mounted on the mounting frame, is disposed next to the flywheel, and applies a magnetic drag force on the flywheel.
The modularly designed magnetic brake control and flywheel transmission module can be assembled in advance and then installed on a bike frame, so as to be suitable for use on different types of the bike frames. Accordingly, costs for material management and inventory can be efficiently reduced.
Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
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In the preferred embodiment, the driving wheel 51 has multiple grooves formed in an outer peripheral surface of the driving wheel 51, the driven wheel 52 has multiple grooves formed in an outer peripheral surface of the driven wheel 52, and the annular belt 53 has multiple ribs formed on an inner peripheral surface of the annular belt 53. Each of the ribs of the annular belt 53 engages in a corresponding one of the grooves of the driving wheel 51 and a corresponding one of the grooves of the driven wheel 52.
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In the preferred embodiment, the positioning base 55 is position-adjustably mounted on the fork portion 22 of the mounting frame 20, so as to adjust a position of the idle wheel 54 on the annular belt 53. By adjusting the positioning of the idle wheel 54 on the annular belt 53, the tightness between the annular belt 53 and the driving wheel 51 and between the annular belt 53 and the driven wheel 52 can be adjusted.
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Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and features of the invention, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
