Resistance device and exercise equipment having the same

An exercise equipment comprising:

• a torque generating mechanism including a supporting frame, and a torque generating unit that is mounted to said supporting frame, and that is rotatable on said supporting frame for generating a torque;
• and
• a resistance adjusting mechanism including a resistance device and an adjuster, said resistance device including a resistance applying unit that is mounted to said supporting frame and that is operable to press against said torque generating unit so as to apply a resistance to rotational movement of said torque generating unit, and a resistance sensing unit that is disposed for sensing the resistance applied by said resistance applying unit, said resistance applying unit including a fixed seat that is fixedly mounted to said supporting frame, a contact member that is pivotally connected to said fixed seat, a first link that is pivotally connected to said fixed seat, and a second link that is pivotally connected between said first link and said contact member, said fixed seat cooperating with said contact member, said first link and said second link to forma four-bar linkage, said resistance device being convertible between a standby state and a resistance applying state such that, when said resistance device is converted from the standby state to the resistance applying state, said contact member moves toward said torque generating unit, said first and second links being rotatable relative to each other when said resistance device is converted between the standby state and the resistance applying state, said resistance sensing unit including a magnetic member that is mounted to said second link and that is movable relative to said first link, and a Hall sensing module that is mounted to said first link, and that is disposed for outputting a sensing signal generated by magnetic field variation induced by a relative movement between said Hall sensing module and said magnetic member, said adjuster being mounted to said supporting frame, being connected to said resistance applying unit, and being operable to deform said four-bar linkage when said resistance device is in the resistance applying state, so as to change the resistance applied by said resistance applying unit.