| Mechanism for folding and angle-adjusting belt frame of treadmills -> Monitor Keywords |
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Mechanism for folding and angle-adjusting belt frame of treadmillsRelated Patent Categories: Exercise Devices, Involving User Translation Or Physical Simulation Thereof, Treadmill For Foot TravelMechanism for folding and angle-adjusting belt frame of treadmills description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060142124, Mechanism for folding and angle-adjusting belt frame of treadmills. Brief Patent Description - Full Patent Description - Patent Application Claims
FIELD OF THE INVENTION [0001] The present invention relates to a mechanism that adjusts the inclination angle of the belt frame and folds the belt frame upright. BACKGROUND OF THE INVENTION [0002] A conventional treadmill generally includes a base, a belt frame which has one end pivotably connected to the base and an endless belt is connected to the frame. The endless belt can also be driven by a motor so that the users set desired speed of the belt to exercise. [0003] The conventional treadmills generally includes a function of adjustment of the inclination of the belt frame so as to provide different slope for the belt frame. A common way to adjust the inclination of the belt frame employs a mechanism that raises one end of the belt frame. However, such mechanism can only be used for the adjustment of the belt frame and cannot be used for folding the belt frame. [0004] In order to save the space occupied by the treadmill, some treadmills are equipped with a folding device which allows the frame to be pivoted relative to the base. U.S. Pat. No. 6,527,679 discloses a folding mechanism which uses a motor and a threaded rod which is driven by the motor and a connection member pivotably connected to the belt frame is movably mounted to the threaded rod so that when the threaded rod is rotated by the motor, the connection member pivots the frame. It is noted that the folding mechanism can only be used for folding the belt frame and is not able to adjust the inclination of the belt frame. Similarly, another prior art shown in FIG. 10, discloses a similar folding mechanism which is duly used for folding the belt frame 50. [0005] The present invention intends to provide a mechanism which includes a support frame driven by a motor and the support frame may fold and adjust the belt frame. SUMMARY OF THE INVENTION [0006] The present invention relates to a treadmill which comprises a base and a belt frame has a first end pivotably connected to the base and a second end of the belt frame is a free end. An endless belt is mounted to the belt frame. A support frame is pivotably connected to the base and is driven by a mechanism so that the support frame can be pivoted relative to the base. The support frame may also pivot the belt frame upright. [0007] The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention. BRIEF DESCRIPTION OF THE DRAWINGS [0008] FIG. 1 is a perspective view to show the treadmill of the present invention; [0009] FIG. 2 shows the belt frame is adjusted to have a large angle relative to the floor; [0010] FIG. 3 is a side view of the treadmill as shown in FIG. 2; [0011] FIG. 4 shows the belt frame is adjusted to have a small relative to the floor; [0012] FIG. 5 is a side view of the treadmill as shown in FIG. 4; [0013] FIG. 6 shows that the belt frame is folded by the support frame; [0014] FIG. 7 shows a side view of the treadmill in FIG. 6; [0015] FIG. 8 shows that the belt frame is folded upright; [0016] FIG. 9 is a side view to show the treadmill as disclosed in FIG. 8, and [0017] FIG. 10 shows the frame is pivoted relative to the base of the treadmill by the folding device of a prior art. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT [0018] Referring to FIGS. 1 to 5, the treadmill of the present invention comprises a base 10 with two posts 11 extend from the two side rails of the base 10 and a control panel 13 is connected between the two posts 11. A belt frame 20 has a first end pivotably connected to the base 10 and a second end of the belt frame 20 is a free end which has two wheels connected to an underside thereof. A support deck 22 is connected to the belt frame 20 and two pairs of rollers 23, 24 are connected on the two sides of the belt frame 20 and located corresponding to two ends of the support deck 22. An endless belt 21 reeves through the two pairs of rollers 23, 24 and the support deck 22 is located beneath an upper portion of the endless belt 21, so that the user may run on the moving endless belt 21 and the load is supported on the support deck 22. [0019] A support frame 30 is pivotably connected to the base 10 by two links 12 which are pivotably connected between the two posts 11 and the support frame 30. Two sides of the support frame 30 are located beneath of the tow sides of the belt frame 20 and two wheels 31 are connected to an underside of the two sides of the free end of the support frame 30. In this embodiment, the belt frame 20, the base 10 and the support frame 30 shares a common pivot axis. Continue reading about Mechanism for folding and angle-adjusting belt frame of treadmills... Full patent description for Mechanism for folding and angle-adjusting belt frame of treadmills Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Mechanism for folding and angle-adjusting belt frame of treadmills patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. 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