Nautilus, Inc.

Benjamin A Browning

Marcus L Marjama

Todd D Anderson

Joshua S Smith

A stationary exercise machine according to the present disclosure may include a frame, a crankshaft rotatably supported by the frame, first and second lower linkages, and first and second crank arms connected to opposite sides of the crankshaft such that rotation of either of the crank arms causes rotation of the crankshaft. The lower linkages may be operatively connected to the crankshaft and to a respective one of first and second pedals. Each of the lower linkages may include a reciprocating member operatively connecting one of the pedals with one of the crank arms. Each of the lower linkages may include an adjustable linkage connected between the reciprocating member and the respective crank arm, the adjustable linkage may vary a distance between an output end of the reciprocating member and an input end of the crank arm. Each of the pedals may be pivotally connected to the respective reciprocating members.

Pedal assembly for exercise machine

A power measurement apparatus for an exercise machine may include an optical sensing component and a pair of code wheels supported by the frame of the exercise machine. The pair of code wheels may include a first code wheel having a plurality of first windows and a second code wheel having a plurality of second windows that individually at least partially overlap respective ones of the first windows to define respective effective window, the width of which may vary responsive to the application of power via at least one moment-producing assembly. The optical sensing component is operatively associated with the pair of code wheels to detect variations in the width of the effective window and thus measure the power applied via the moment-producing assembly.

Stationary exercise machine with a power measurement apparatus

A stationary exercise machine according to the present disclosure may include a frame, a crankshaft rotatable supported by the frame, first and second lower linkages, and first and second crank arms connected to opposite sides of the crankshaft such that rotation of either of the first or second crank arm causes rotation of the crankshaft. Each of the first and second lower linkages may be operatively connected to the crankshaft and to a respective one of first and second pedals. Each of the first and second lower linkages may include a reciprocating member operatively connecting the respective one of the pedals with respective one of the crank arms. In some examples, each of the first and second lower linkages may include an adjustable linkage connected between the reciprocating member and the respective crank arm, the adjustable linkage operable to vary a distance between an output end of the reciprocating member and an input end of the crank arm. In some examples, each of the pedals may be pivotally connected to the respective reciprocating members.

Exercise machine with adjustable stride

A stationary exercise machine in accordance with some examples herein may include a frame, a crankshaft rotatably supported by the frame, an upper moment-producing mechanism and a lower moment-producing mechanism both operatively engaged to the crankshaft to cause the crankshaft to rotate. The lower moment-producing mechanism and the upper moment-producing mechanism may be resiliently coupled to one another, such as via a resilient coupling between a crank arm of the lower moment-producing mechanism and a link or virtual crank arm or the upper moment-producing mechanism. The exercise machine may further include a measurement apparatus which may be configured to measure differential forces between the upper and lower mechanisms.

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Vancouver, WA, United States of America

Benjamin A Browning