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Medical therapeutic treadmill capable of automatically adjusting its rail heightRelated Patent Categories: Exercise Devices, Involving User Translation Or Physical Simulation Thereof, Treadmill For Foot TravelMedical therapeutic treadmill capable of automatically adjusting its rail height description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070010376, Medical therapeutic treadmill capable of automatically adjusting its rail height. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a medical therapeutic treadmill, and more particularly to a medical therapeutic treadmill that can automatically and synchronously adjust the height of its rails on both sides of the treadmill. [0003] 2. Description of the Related Art [0004] The main purpose for designing a medial therapeutic electric treadmill is to provide a medical therapeutic training for patients whose legs are injured or who have a problem on standing, walking and running. Since the weight and height of each patient vary and the correct support posture of each patient and the height of the rail are different, therefore it is necessary to provide a design capable of adjusting the width and height of the rails on both sides of the treadmill, such that physical therapists can make appropriate adjustments to fit individual patients, and the patients can stand or are supported by the rails to avoid a secondary injury. [0005] However, most of the medical therapeutic treadmills sold in the market come with a design for users to manually adjust the height of the rails. For example, the treadmill disclosed in U.S. Pat. No. 4,708,337 includes a support rod of the rail being two sliding rods connected with each other, and the adjusting device set could be a manual adjusting device such as a ball socket, a spring latch or a thread. A user has to turn and loosen the adjusting device by one hand first and then turns to tighten the adjusting device set in order to adjust the height of the rails. However, such manual adjusting method not only wastes time and efforts, but also has the concern of adjusting the rails to one higher than the other. SUMMARY OF THE INVENTION [0006] The primary objective of the present invention is to provide a medical therapeutic treadmill capable of automatically adjusting its rail height, comprising a link rod set disposed under a rail, a driving set for driving the link rods on both sides of the treadmill and changing the height of the rails on both sides, so as to achieve the purpose of automatically adjusting the rails. The invention can save tremendous time and physical strength for adjusting the rail height, and the driving set comprises a transversal rod and both ends of the transversal rod are axially connected to a link rod for synchronously adjusting the rail height on both sides and making sure that the rails on both sides are of the same height. [0007] The technical measures adopted by the present invention include: [0008] a medical therapeutic treadmill capable of automatically adjusting its rail height, comprising a base, having a treadmill platform disposed on the base, and a control panel disposed at the front of the base; and a rail set, having a rail separately disposed on both sides of the base; characterized in that the rail includes a rail height adjusting mechanism under the rail for simultaneously driving the rails to move vertically up and down and adjusting the rail height to fit a patient in a quick, simple and easy manner. BRIEF DESCRIPTION OF THE DRAWINGS [0009] FIG. 1 is an exploded view of a rail height adjusting mechanism of the invention; [0010] FIG. 2 is a perspective view of a rail height adjusting mechanism of the invention; [0011] FIG. 3 is an exploded view of a protective cover set of the invention; [0012] FIG. 4 is a schematic view of adjusting a rail height according to the invention; [0013] FIG. 5 is another schematic view of adjusting a rail height according to the invention; and [0014] FIG. 6 is a schematic perspective view of the movements of to the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0015] Referring to FIGS. 1 to 3, a medical therapeutic treadmill capable of automatically adjusting its rail height comprises the following elements: [0016] A base 10 has a treadmill platform 11 disposed on the base 10, and the treadmill platform 11 includes a runway 111 driven by an electric motor for allowing an exerciser to do exercise thereon, and a control panel 12 is disposed at an appropriate position of the front of the base 10, and the control panel 12 has various switches and controllers for users to control and adjust the functions of the treadmill. [0017] A rail set 20 has a rail 21 disposed separately on both sides of the base 10, at least one adjusting slide rod 23 disposed on a rail base 22, and a holding section 24 disposed on the rail base 22 for users to hold by hands. [0018] A rail height adjusting mechanism 30 has a link rod set 31 disposed under the rail base 22, and the link rod set 31 comprises an active rod 32 and a link rod 33, and both active rod 32 and link rod 33 are axially connected at the central position, such that the active rod 31 and link rod 33 constitute an X-shape link rod mechanism, and a driving set 34 comprises a linear driver 35 which could be an electric motor set 351, and the electric motor set 351 includes a stretchable rod 352, and a transversal rod 36 is disposed at an axial end of the stretchable rod 352, and a sliding groove 361 is disposed at the bottom of both ends of the transversal rod 36, and a sliding track 362 is disposed on two corresponding sides of the base 10, such that the linear driver 35 can push the transversal rod 36 to slide in the sliding track 362; wherein the link rod 32 has a rail base 22 axially connected to the top of the link rod 32, and the other end is axially connected to the base 10, and the top of the active rod 31 is axially connected to the rail base 22, and the other end is axially connected to an end of the transversal rod 36. [0019] A protective cover set 40 has a protective cover 41 wrapped around a lateral side of the bottom of each rail 21, and a sliding groove 42 is disposed on the protective cover 41 corresponding to the adjusting sliding rod 23 for sliding the adjusting sliding rod 23 therein, and the protective cover 41 includes an accommodating space 43 for accommodating the rail base 22 and the link rod set 31; wherein the protective cover 41 is fixed onto the base 10. [0020] With the understanding of the foregoing structures, the principle and process of the present invention is described as follows: Continue reading about Medical therapeutic treadmill capable of automatically adjusting its rail height... 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