Patent ID: 7364535

Claim:
Exercise apparatus comprising a frame having a support column, a user seat supported on a carriage adjustably supported on said column for up-down movement therealong to a plurality of positions to provide an adjustable seat position for a user, a tolerance-compensating engagement system engaged between said carriage and said column and bearing therebetween in biased relation to minimize wobble of said carriage on said column, said tolerance-compensating engagement system comprising first and second mounting systems mounting said carriage on said column for said up-down movement therealong, said second mounting system including a biasing member having first and second ends and an engagement member having first, second and third surfaces, said first surface of said engagement member engaging said column and movable therealong with said carriage, said second surface of said engagement member engaging said carriage and movable therewith as said carriage moves along said column, said biasing member bearing respectively at said first and second ends between said carriage and said third surface of said engagement member to bias said first surface of said engagement member into engagement with said column in said biased relation.