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  Mechanism using a single power source to provide two exercising functions for a physical exerciserUSPTO Application #: 20080020907Title: Mechanism using a single power source to provide two exercising functions for a physical exerciser Abstract: Disclosed is a single-driving dual-directional operation device for fitness equipment, including a driver assembly, a first motion assembly, and a second motion assembly. The first and second motion assemblies respectively include first and second one-way bearings that are operable in first rotational direction and opposite second rotational direction respectively to allow the first and second motion assemblies to selectively get in driving engagement with the driver assembly to be respectively driven thereby to rotate in the first and second directions. Thus, when the driver assembly is put in operation selectively in the first and second directions, rotation motion is respectively induced in the first and second motion assemblies via the first and second one-way bearings in an interference-free and independent manner. (end of abstract)
Agent: Leong C Lei - Walnut Creek, CA, US Inventor: Chin-Ta LIN USPTO Applicaton #: 20080020907 - Class: 482054000 (USPTO) Related Patent Categories: Exercise Devices, Involving User Translation Or Physical Simulation Thereof, Treadmill For Foot Travel The Patent Description & Claims data below is from USPTO Patent Application 20080020907. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] (a) Technical Field of the Invention [0002] The present invention relates to driving of fitness equipment, and in particular to a driving device that uses a single driving source to operate in two different modes or exercise functions in an interference-free and independent manner so that a user's need of different exercise modes can be satisfied [0003] (b) Description of the Prior Art [0004] To cope with the substantial reduction of exercising sites and time that are available for modern people, a variety of exercising device or fitness equipment is available in the market. Unless no driving structure is adopted, most of the currently available fitness devices have effect a single type of exercise or training. Alternatively, the fitness device may achieve different type of training by altering the operation mode thereof For example, a treadmill comprises a chassis having two ends to which front and rear cylinders are respectively mounted and a treading belt extending around the front and rear cylinders. A treading board is mounted in the chassis within the travel range of the treading belt. A driver assembly is provided on the chassis to drive the rotation of the treading belt around the cylinders so that a user may take trading activity on the reading belt. [0005] In such treadmill, two sets of driver assemblies are needed to carry out two types of operations or function in order to avoid undesired interference between the two functions. For example, a treadmill is often provided with a vibration fitness function, which requires an additional vibration driving source that is often mounted at a middle section of the chassis of the treadmill. The vibration driving source is connected to a waist belt surrounding the user's waist to effect vibration fitness. [0006] Purchasing two different fitness devices to perform different exercise functions or combining an additional driving source to an existing device, such as a treadmill, to achieve two different types of training or exercise operations both are costly for general consumers and require more space for the increased total volume of the fitness device(s). Also, increase the number of driving sources also give more potential risks of handling malfunction or broken devices. As a result, the two solutions mentioned above are both inefficient in both economics and market competition. [0007] Thus, the present invention is aimed to provide a single-driving dual-directional operation device for fitness equipment that allows a single fitness device to perform two different modes of operation in an interference-free and independent manner so as to overcome the drawbacks of the conventional fitness equipment discussed above. SUMMARY OF THE INVENTION [0008] The primary purpose of the present invention is to provide a single-driving dual-directional operation device for fitness equipment, which operation device uses a single driving source to generate or perform two different exercise operations so as to add value to the fitness equipment. [0009] To achieve the above objective, the present invention provides a single-diving dual-directional operation device comprising: a chassis; a driver assembly mounted on the chassis and comprising a motor; a first motion assembly comprising a first shaft mounted to the chassis and a first transmission roller mounted to the shaft and in driving coupling with the motor, a first transmission cylinder being rotatably mounted to the first shaft, a first one-way bearing being arranged and coupled between the first transmission roller and the first transmission cylinder, the first one-way bearing being operable in a first direction; and a second motion assembly comprising a second shaft rotatably mounted to the chassis and in driving coupling with the first transmission roller of the first motion assembly, a second one-way bearing being mounted to the second shaft to couple a second transmission roller to the second shaft, the second one-way bearing being operable in a second direction that is opposite to die first direction of the first one-way bearing, the second shaft being in diving coupling with a driving shaft that is rotatably mounted to the chassis via the second one-way bearing. Thus, with the above arrangement, a fitness device in which the present invention is embodied uses operations of the driver assembly in the first and second directions to respectively drive a transmission cylinder of a first exercising portion and a driving shaft of a second exercising portion to selectively effect two different exercising modes in an interference-free and independent manner. Consequently, the effectiveness of exercising can be enhanced, the costs of installation and maintenance are reduced, and economic values are increased. [0010] The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts. [0011] Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example. BRIEF DESCRIPTION OF THE DRAWINGS [0012] FIG. 1 is an exploded view of a single-driving dual-directional operation device constructed in accordance with the present invention, illustrating major components of the operation device; [0013] FIG. 2 is a top plan view of the single-driving dual-directional operation device of the present invention; [0014] FIG. 3 is a side elevational view of the single-driving dual-directional operation device of the present invention, illustrating the operation of a first motion assembly of the single-driving dual-directional operation device; [0015] FIG. 4 is a side elevational view of the single-driving dual-directional operation device of the present invention, illustrating the operation of a second motion assembly of the single-driving dual-directional operation device; [0016] FIG. 5 is an exploded view of a treadmill incorporating the single-driving dual-directional operation device in accordance with the present invention; [0017] FIG. 6 is a top plan view of the treadmill that incorporates the single-driving dual-directional operation device of the present invention; [0018] FIG. 7 is a side elevational view of the treadmill that incorporates the single-driving dual-directional operation device of the present invention, illustrating the operation of treading exercise with the treadmill; [0019] FIG. 8 is a side elevational view of the treadmill that incorporates the single-driving dual-directional operation device of the present invention, illustrating the operation of vibration fitness; and [0020] FIG. 9 is an end view of the treadmill that incorporates the single-driving dual-directional operation device in accordance with the present invention, further illustrating the operation of vibration fitness. 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