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Recumbent bike system and methodRelated Patent Categories: Exercise Devices, Involving User Translation Or Physical Simulation Thereof, BicylclingRecumbent bike system and method description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060287167, Recumbent bike system and method. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention is directed generally to bikes and, more particularly, to recumbent bikes including recumbent exercise bikes. [0003] 2. Description of the Related Art [0004] Bikes are useful for exercise and transportation purposes. In particular, both mobile and stationary bikes are frequently used for cardiovascular exercise since large muscle groups are used, which can put significant load on the cardiovascular system of an individual. A given amount of work that can be input into the bike mechanism by an individual will directly affect the amount of load that can be put on the cardiovascular system. [0005] As is commonly known, to input work into a bike, force is applied to pedals to turn a crank. For a given power level to be input into a bike, in an ideal case, a steady force would be applied to the pedals throughout the entire 360.degree. of the crank cycle so that the degree of force necessary at any time through the crank cycle could be kept to a minimum. Reduced required forces results in less muscle fatigue and greater levels of power that can potentially be inputted into a bike. Greater levels of power can potentially result in greater cardiovascular load that can be applied to potentially achieve more efficient cardiovascular training and higher levels of cardiovascular fitness. [0006] Unfortunately, conventional bikes have significant portions of their crank cycles in which power cannot be as effectively inputted into the bikes compared with other portions of their crank cycles. This uneven level of power input capacity found in the conventional crank cycles can result in higher levels of fatigue and/or reduced potential cardiovascular load. Thus, improvements to allow for a relatively high power input capacity over a larger portion of the crank cycle could be desirable. BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S) [0007] FIG. 1 is an isometric view of a recumbent bike according to present invention. [0008] FIG. 2 is a side elevational view of the recumbent bike of FIG. 1 with its seat in a first tilt position. [0009] FIG. 3 is a side elevational view of the recumbent bike of FIG. 1 with its seat in a second tilt position. [0010] FIG. 4 is a side elevational view of the recumbent bike of FIG. 1 with its seat in a forward rail position. [0011] FIG. 5 is a side elevational view of the recumbent bike of FIG. 1 with its seat in a mid-rail position. [0012] FIG. 6 is a side elevational view of the recumbent bike of FIG. 1 with its seat in a rear rail position. [0013] FIG. 7 is a side elevational view of a schematic of a representative human showing various joints and links. [0014] FIG. 8 is a side elevational view of a schematic of the representative human of FIG. 7 showing various muscle groups. [0015] FIG. 9 is a table of anthropomorphic data. [0016] FIG. 10 is a side elevational view a schematic of the recumbent bike of FIG. 1 with a portion of the representative human engaged therewith. [0017] FIG. 11 is a side elevational view of a schematic of the recumbent bike of FIG. 1 with a portion of the representative human engaged therewith, showing forces being applied by relevant muscle groups. [0018] FIG. 12 is a side elevational view of a schematic of the recumbent bike with a portion of the representative human engaged therewith showing a range of positions where use of the gluteus muscle group is favored. [0019] FIG. 13 is a side elevational view of a schematic of the recumbent bike with a portion of the representative human engaged therewith showing a range of positions where power input in reduced. [0020] FIG. 14 is a side elevational view of a schematic of the recumbent bike showing seat positioning detail. [0021] FIG. 15 is a table having seat positioning detail related to FIG. 14. [0022] FIG. 16 is an isometric view of an alternative version of the recumbent bike of FIG. 1. Continue reading about Recumbent bike system and method... Full patent description for Recumbent bike system and method Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Recumbent bike system and method patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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