Exercise machines having a resistance fan that directs air for cooling a user

1. An exercise machine comprising:

a supporting frame;

a resistance fan on the supporting frame, the resistance fan being configured to provide an amount of resistance to a user of the exercise machine;

a housing enclosing the resistance fan, the housing having a plurality of openings through which air from the resistance fan is directed towards the user of the exercise machine;

wherein the housing comprises axially opposite side faces and a radially outer perimeter, and wherein the plurality of openings are disposed along the radially outer perimeter; and

a shroud coupled to the housing, the shroud being movable with respect to the plurality of openings so as to redirect the air from the resistance fan without changing the amount of resistance provided to the user of the exercise machine;

the shroud comprising a sleeve having first and second arms that together form a U-shape, and further comprising arcuate tracks on the axially opposite side faces, wherein the first and second arms are engaged with and slide along the arcuate tracks.

2. The exercise machine according to claim 1 , wherein the sleeve comprises a leading edge and an opposite, trailing edge, and wherein as the shroud is moved along the housing, the opposite, trailing edge uncovers a portion of the plurality of openings as the leading edge covers a respectively equal portion of the plurality of openings.

3. The exercise machine according to claim 1 , wherein the housing comprises a wire grate and wherein the plurality of openings are defined by gaps within the wire grate.

4. An exercise cycle comprising:

a supporting frame;

pedals for performing a cycling exercise motion relative to the supporting frame;

a resistance fan operatively coupled to the pedals such that performance of the cycling exercise motion causes rotation of the resistance fan, which thereby provides an amount of resistance to the cycling exercise motion;

a housing enclosing the resistance fan, the housing having a plurality of openings through which air from the resistance fan is directed towards a user performing the cycling exercise motion;

wherein the housing comprises axially opposite side faces and a radially outer perimeter, and wherein the plurality of openings are disposed along the radially outer perimeter; and

a shroud coupled to the housing, the shroud being movable with respect to the plurality of openings so as to redirect the air from the resistance fan without changing the amount of resistance to the cycling exercise motion;

the shroud comprising a sleeve having first and second arms that together form a U-shape; and further comprising arcuate tracks on the axially opposite side faces, and wherein the first and second arms are engaged with and slide along the arcuate tracks, respectively.

5. The exercise cycle according to claim 4 , wherein the housing comprises a wire grate and wherein the plurality of openings are defined by gaps within the wire grate.

6. An exercise machine comprising:

a supporting frame;

a resistance fan on the supporting frame, the resistance fan being configured to provide an amount of resistance to a user of the exercise machine;

a housing enclosing the resistance fan, the housing having a plurality of openings through which air from the resistance fan is directed towards the user of the exercise machine;

wherein the housing comprises a radially outer perimeter, and wherein the plurality of openings are disposed along the radially outer perimeter; and

a shroud coupled to the housing, the shroud being movable with respect to the plurality of openings so as to redirect the air from the resistance fan, wherein the shroud comprises a leading edge and an opposite, trailing edge, and wherein as the shroud is moved, the opposite, trailing edge uncovers a portion of the plurality of openings as the leading edge covers a respectively equal portion of the plurality of openings, in particular so as to redirect the air from the resistance fan without changing the amount of resistance provided to the user of the exercise machine;

wherein the shroud is disposed at least partially in an interior of the housing.

7. The exercise machine according to claim 6 , further comprising an elongated track on the housing, wherein the shroud has a body disposed in the housing and a handle that extends through the elongated track and facilitates manual sliding of the shroud along the interior of the housing.

8. The exercise machine according to claim 6 , further comprising pedals for performing a cycling exercise motion relative to the supporting frame.

9. An exercise machine comprising:

a supporting frame;

a resistance fan on the supporting frame, the resistance fan being configured to provide an amount of resistance to a user of the exercise machine;

a housing enclosing the resistance fan, the housing having a plurality of openings through which air from the resistance fan is directed towards the user of the exercise machine;

wherein the housing comprises a radially outer perimeter, and wherein the plurality of openings are disposed along the radially outer perimeter; and

a shroud coupled to the housing, the shroud being movable with respect to the plurality of openings so as to redirect the air from the resistance fan, wherein the shroud comprises a leading edge and an opposite, trailing edge, and wherein as the shroud is moved, the opposite, trailing edge uncovers a portion of the plurality of openings as the leading edge covers a respectively equal portion of the plurality of openings, in particular so as to redirect the air from the resistance fan without changing the amount of resistance provided to the user of the exercise machine; wherein the shroud comprises a sleeve having first and second arms that together form a U-shape, and wherein the elongated track is one of a pair of arcuate tracks on the axially opposite side faces, and further wherein the first and second arms are engaged with and slide along the arcuate tracks;

an elongated track on the housing, wherein the shroud is slide-able along the elongated track.

10. The exercise machine according to claim 9 , wherein the housing comprises a wire grate and wherein the plurality of openings are defined by gaps within the wire grate.