Treadmill

Abstract

A treadmill includes a base, a supporting unit provided on the base, an upper controller located on the supporting unit, a lower controller located on the base and electrically connected to the upper controller, two rollers located on the base, a platform located between the rollers, a magnet attached to the platform, a belt made in the form of a loop wound around the rollers, a motor for driving one of the rollers; and a sensor attached to the base and electrically to both of the upper and lower controllers and for sensing movement of the magnet.

1 . A treadmill including:
 a base;   a supporting unit provided on the base;   an upper controller located on the supporting unit;   a lower controller located on the base and electrically connected to the upper controller;   two rollers located on the base;   a platform located between the rollers;   a magnet assembly attached to the platform;   a belt made in the form of a loop wound around the rollers;   a motor for driving one of the rollers; and   a sensor assembly attached to the base and electrically to both of the upper and lower controllers and for sensing movement of the magnet assembly.   
     
     
         2 . The treadmill according to  claim 1 , wherein the magnet assembly is separated from the sensor assembly by a gap of 3 to 5 millimeters. 
     
     
         3 . The treadmill according to  claim 1 , wherein the sensor assembly includes:
 a circuit board attached to the base; and   a Hall IC provided on and electrically connected to the circuit board for sensing the movement of the magnet.   
     
     
         4 . The treadmill according to  claim 3 , wherein the magnet assembly is separated from the Hall IC by a gap of 3 to 5 millimeters. 
     
     
         5 . The treadmill according to  claim 3 , wherein the sensor assembly includes a cover attached to the base for protectively covering the circuit board and the Hall IC. 
     
     
         6 . The treadmill according to  claim 1 , wherein the magnet assembly includes:
 a plastic element attached to the platform; and   a magnet located in the plastic element.   
     
     
         7 . The treadmill according to  claim 6 , wherein the magnet is separated from the sensor assembly by a gap of 3 to 5 millimeters. 
     
     
         8 . The treadmill according to  claim 6 , including a mount formed with a first section attached to the platform and a second section to which the plastic element is attached by a screw. 
     
     
         9 . The treadmill according to  claim 8 , wherein the plastic element includes a split anchor forced through an aperture defined in the second section of the mount. 
     
     
         10 . The treadmill according to  claim 8 , wherein the first and second sections of the mount extend in perpendicular to each other.