Patent ID: 6310416
Filing Date: 2001-10-30
Classification: H02K

Abstract:
A resisting and pulling mechanism comprising an excited magnetic cylinder and a cylindrical wheel, which are coaxially mounted on two support frames, with each having a bearing, said cylindrical wheel provided with a link shaft which is received in said bearing of one of said two support frames, said link shaft provided with a wheel hole and a bearing which is disposed in said wheel hole, said excited magnetic cylinder and said cylindrical wheel being mounted on a fastening shaft which is received at both ends thereof in said bearings of said two support frames, said fastening shaft provided with a through hole extending along the direction of a center line thereof said excited magnetic cylinder provided with a coil seat on which an excited magnetic coil is mounted such that said excited magnetic coil is connected with an external power source via said through hole of said fastening shaft, said fastening shaft being driven by a motor such that said cylindrical wheel is actuated to couple with said excited magnetic cylinder, thereby resulting in various pulling couple forces in accordance with various resistances; wherein said excited magnetic cylinder is formed of a toothed disk and a toothed cylinder fastened with said toothed disk, said toothed disk being provided with a plurality of annularly-arranged tooth-shaped wing surfaces radiating from an axial center thereof, with each of said wing surfaces having a plurality of tapered teeth, said tapered teeth having a pointed end which is thickened to serve as an induction area, said toothed cylinder having a closed end and an axial hole, said toothed cylinder being provided at other end thereof with a plurality of round teeth, with each of said round teeth having a pointed end which is thickened to serve as an induction area, said toothed disk being fastened with said toothed cylinder such that said tapered teeth of said toothed disk are received between said round teeth of said toothed cylinder, and that a wavy space of N/S pole is formed between said tapered teeth and said round teeth; wherein said tapered teeth and said round teeth have an outer side and an inner side narrower than said outer side; and wherein said tapered teeth and said round teeth are provided at two opposite ends thereof with a bevel slanting inward.