Seat adjustment devices and exercise apparatuses having seat adjustment devices

1. An exercise apparatus comprising:

a frame;

a seat that is supported by the frame, wherein a user sits on the seat to perform an exercise activity;

a body support member that is supported by the frame, wherein the seat extends at a seat angle relative to the body support member, and wherein the user abuts the body support member when the user is sitting on the seat to perform the exercise activity; and

a seat adjustment device that facilitates adjustment of the height of the seat with respect to the frame and causes adjustment of the seat angle when the height of the seat is adjusted;

wherein a back side of the user abuts the body support member when the user is sitting on the seat to perform the exercise activity, and wherein the seat adjustment device is configured such that raising the height of the seat with respect to the frame while the body support member remains stationary causes the seat adjustment device to increase the seat angle and such that lowering the height of the seat with respect to the frame while the body support member remains stationary causes the seat adjustment device to decrease the seat angle;

wherein the apparatus comprises at least one articulatable press arm and wherein the exercise activity is a press exercise.

2. The apparatus according to claim 1 , wherein the device comprises an upper support arm having a first end that is pivotably coupled to the seat at an upper first pivot point and a second end that is pivotably coupled to the frame at an upper second pivot point, wherein the device further comprises a lower support arm having a first end that is pivotably coupled to the seat at a lower first pivot point and a second end that is pivotably coupled to the frame at a lower second pivot point; wherein the upper first pivot point and the lower first pivot point are spaced apart from each other a first distance; and wherein the upper second pivot point and the lower second pivot point are spaced apart from each other a second distance that is greater than the first distance.

3. The apparatus according to claim 2 , wherein the upper first pivot point and the upper second pivot point are spaced apart from each other at a third distance, and wherein the lower first pivot point and the lower second pivot point are spaced apart from each other at a fourth distance that is equal to the third distance.

4. An exercise apparatus comprising:

a frame;

a seat that is supported by the frame, wherein a user sits on the seat to perform an exercise activity;

a body support member that is supported by the frame, wherein the seat extends at a seat angle relative to the body support member, and wherein the user abuts the body support member when the user is sitting on the seat to perform the exercise activity; and

a seat adjustment device that facilitates adjustment of the height of the seat with respect to the frame and causes adjustment of the seat angle when the height of the seat is adjusted;

wherein a front side of the user abuts the body support member when the user is sitting on the seat to perform the exercise activity, and wherein the seat adjustment device is configured such that raising the height of the seat with respect to the frame while the body support member remains stationary causes the seat adjustment device to decrease the seat angle and such that lowering the height of the seat with respect to the frame while the body support remains stationary causes the seat adjustment device to increase the seat angle;

wherein the apparatus comprises at least one articulatable pull-down arm and wherein the exercise activity is a pull-down exercise.

5. The apparatus according to claim 4 , wherein the device comprises an upper support arm having a first end that is pivotably coupled to the seat at an upper first pivot point and a second end that is pivotably coupled to the frame at an upper second pivot point, wherein the device further comprises a lower support arm having a first end that is pivotably coupled to the seat at a lower first pivot point and a second end that is pivotably coupled to the frame at a lower second pivot point; wherein the upper first pivot point and the lower first pivot point are spaced apart from each other a first distance; and wherein the upper second pivot point and the lower second pivot point are spaced apart from each other a second distance that is less than the first distance.

6. The apparatus according to claim 5 , wherein the upper first pivot point and the upper second pivot point are spaced apart from each other at a third distance, and wherein the lower first pivot point and the lower second pivot point are spaced apart from each other at a fourth distance that is equal to the third distance.

7. An exercise apparatus comprising a frame, a seat that is supported by the frame at a seat angle, wherein a user sits on the seat to perform an exercise activity, a body support member that is supported by the frame, and a seat adjustment device comprising:

an upper support arm having a first end that is pivotably coupled to the seat at an upper first pivot point and a second end that is pivotably coupled to the frame at an upper second pivot point,

a lower support arm having a first end that is pivotably coupled to the seat at a lower first pivot point and a second end that is pivotably coupled to the frame at a lower second pivot point;

wherein the upper first pivot point and the lower first pivot point are spaced apart from each other a first distance; and

wherein the upper second pivot point and the lower second pivot point are spaced apart from each other a second distance that is different than the first distance such that adjustment of the height of the seat with respect to the frame causes adjustment of the seat angle when the height of the seat is adjusted.

8. The apparatus according to claim 7 , wherein the seat adjustment device is manually operable.

9. The apparatus according to claim 8 , wherein the seat adjustment device comprises a pin that is received in a plurality of slots located at different heights with respect to the frame.

10. The apparatus according to claim 9 , wherein the plurality of slots are formed in a base member that is fixed to the frame.

11. The apparatus according to claim 10 , wherein the base member comprises a curved outer surface and wherein the plurality of slots are spaced apart along the curved outer surface.

12. The apparatus according to claim 9 , further comprising a handle that is coupled to the pin, wherein pulling on the handle removes the pin from the plurality of slots and wherein releasing the handle causes the pin to engage with one of the plurality of slots.

13. The apparatus according to claim 12 , further comprising a linkage that connects the handle to the pin, wherein the linkage comprises a first link arm, a second link arm, and a third link arm, wherein the first link arm is connected to the second link arm at a fixed pivot point that remains fixed with respect to the seat and wherein the second link arm is connected to the third link arm at a movable pivot point that moves with respect to the seat, and wherein the pin is connected to the third link arm.

14. The apparatus according to claim 13 , wherein the first link arm extends transversely to the second link arm at a fixed angle.

15. The apparatus according to claim 14 , comprising a spring that couples the linkage to the seat and biases the pin into engagement with the one of the plurality of slots.

16. The apparatus according to claim 7 , comprising a supporting member that supports the seat, wherein the supporting member comprises a support platform that supports the seat and a support base that supports the support platform.

17. The apparatus according to claim 16 , wherein the device comprises an upper support arm having a first end that is pivotably coupled to the seat at an upper first pivot point and a second end that is pivotably coupled to the frame at an upper second pivot point, wherein the device further comprises a lower support arm having a first end that is pivotably coupled to the seat at a lower first pivot point and a second end that is pivotably coupled to the frame at a lower second pivot point; and further comprising an upper first pivot axle at the upper first pivot point, an upper second pivot axle at the upper second pivot point, a lower first pivot axle at the lower first pivot point and lower second pivot axle at the lower second pivot point; wherein the upper first pivot axle, upper second pivot axle, lower first pivot axle and lower second pivot axle extend through the support base.

18. The apparatus according to claim 7 , wherein the second distance is greater than the first distance such that raising the height of the seat with respect to the frame causes the seat adjustment device to increase the seat angle and wherein lowering the height of the seat with respect to the frame causes the seat adjustment device to decrease the seat angle.

19. The apparatus according to claim 7 , wherein the second distance is less than the first distance such that raising the height of the seat with respect to the frame causes the seat adjustment device to decrease the seat angle and wherein lowering the height of the seat with respect to the frame causes the seat adjustment device to increase the seat angle.