Calf extension training device

• US 7,874,971 B2
• Filed: 03/25/2009
• Issued: 01/25/2011
• Est. Priority Date: 03/25/2009
• Status: Expired due to Fees

• Current Assignee: GRAA Innovations LLC
• Original Assignee: GRAA Innovations LLC
• Inventors: Reyes, Gil
• Primary Examiner(s): BAKER, LORI LYNN
• Application Number:
  US12/383,625
• Publication Number:
  US 20100248917A1
• Time in Patent Office: 671 Days
• Field of Search: 482/133, 482 92- 96, 482/142, 482/148, 482/51, 482/139, 482/14, 482/52, 482/79, 482/908, 482/130, 482/135
• US Class Current: 482/133
• CPC Class Codes: A63B 21/00065 by increasing or reducing the number of resistance units
• CPC Class Codes: A63B 21/00069 Setting or adjusting the resistance level; Compensating for a preload prior to use, e.g. changing length of resistance or adjusting a valve
• CPC Class Codes: A63B 21/023 Wound springs
• CPC Class Codes: A63B 21/0428 the ends moving relatively by linear reciprocation
• CPC Class Codes: A63B 21/0552 Elastic ropes or bands
• CPC Class Codes: A63B 21/0628 for vertical array of weights
• CPC Class Codes: A63B 21/068 using user's body weight
• CPC Class Codes: A63B 21/4005 to the shoulder
• CPC Class Codes: A63B 2208/0204 Standing on the feet
• CPC Class Codes: A63B 23/04 for lower limbs training appliances for special sports A63B69/00; for the purpose of producing mechanical power F03G5/00
• CPC Class Codes: A63B 23/085 by rotational movement of the joint in a plane substantially parallel to the body-symmetrical-plane

Abstract

A calf extension training device which focuses training on the calf muscles is disclosed herein. The training device may comprise a frame, base, riser, sled, and one or more springs. The sled may comprise a sled frame and shoulder extensions, and is configured to move along the length of the frame while attached to one or more springs. Generally, the user stands on the riser leaving the user'"'"'s heels unsupported while the user'"'"'s shoulders are engaged by the shoulder extensions of the sled. The user may then lift and lower the sled using his or her calf muscles. This occurs by the user raising or lowering his or her body by extending and flexing the ankles. Resistance may be provided by one or more springs attached to the sled and the frame. The springs may provide variable resistance against the force of the user'"'"'s calf muscles.

Claims

1. A calf extension training device comprising:

a base;

a platform, the platform extending from the base;

one or more risers attached to the platform, one or more risers configured to engage a front portion of at least one of a user'"'"'s feet.

a frame having one or more frame attachment points attached at a bottom end of the frame, the frame extending upward from the base;

a sled, the sled comprising;

a sled frame;

one or more shoulder extensions extending outward from a top end of the sled frame, the shoulder extensions configured to engage one or more of the user'"'"'s shoulders; and

one or more sled attachment points;

wherein the sled is configured to move along the length of the frame; and

one or more resistance devices attached to the one or more frame attachment points and the one or more sled attachment points, the one or more resistance devices configured to provide resistance as the sled is lifted and lowered.

2. The calf extension training device of claim 1 wherein the frame comprises two parallel C shaped beams, the parallel C shaped beams configured to accept one or more wheels attached to the sled.

3. The calf extension training device of claim 1 wherein the sled further comprises one or more hand holds.

4. The calf extension training device of claim 1 wherein the sled frame, the one or more shoulder extensions, or both are padded.

5. The calf extension training device of claim 1 wherein a plurality of sled attachment points are attached at a bottom end of the sled frame.

6. The calf extension training device of claim 1 wherein the one or more resistance devices are removably attached to the one or more frame attachment points and the one or more sled attachment points.

7. The calf extension training device of claim 1 wherein the one or more risers is adjustable.

8. A calf extension training device comprising:

a base;

a frame extending upward at an angle from the base, the frame having a top end, a bottom end, and one or more frame attachment points at the bottom end;

a foot support attached to the base or frame;

a sled, the sled comprising;

a sled frame having a top end and a bottom end, the sled frame configured to engage the user'"'"'s back;

two shoulder extensions at the top end of the sled frame, the two shoulder extensions configured to engage the user'"'"'s shoulders; and

one or more sled attachment points at the bottom end of the sled frame;

wherein the sled is configured to be lifted and lowered along the length of the frame;

one or more springs attached to the one or more frame attachment points and the one or more sled attachment points, the one or more springs configured to provide resistance as the sled is lifted; and

one or more riser guides configured to accept one or more riser extensions attached to the one or more risers, wherein the position of the one or more risers may be adjusted and then secured by one or more pins inserted into one or more holes formed in one or more sides of the one or more riser guides.

9. The calf extension training device of claim 8 wherein the at least a portion of the foot support extends at an angle perpendicular to the frame.

10. The calf extension training device of claim 8 wherein the frame comprises two parallel C shaped beams, the parallel C shaped beams configured to accept one or more wheels attached to the sled.

11. The calf extension training device of claim 8 wherein the sled further comprises one or more hand holds.

12. The calf extension training device of claim 8 wherein the sled frame, the one or more shoulder extensions, or both are padded.

13. The calf extension training device of claim 8 wherein the foot support is attached to and extends from the frame.

14. A calf extension training device comprising:

a base;

a platform, the platform extending from the base;

one or more risers attached to the platform, one or more risers configured to engage a front portion of at least one of a user'"'"'s feet;

a frame having one or more frame attachment points, the frame extending upward from the base;

a sled, the sled comprising;

a sled frame;

one or more shoulder extensions extending outward from a top end of the sled frame, the shoulder extensions configured to engage one or more of the user'"'"'s shoulders; and

one or more sled attachment points;

wherein the sled is configured to move along the length of the frame; and

one or more resistance devices attached to the one or more frame attachment points and the one or more sled attachment points, the one or more resistance devices configured to provide resistance as the sled is lifted and lowered and wherein the one or more resistance devices are removably attached to the one or more frame attachment points and the one or more sled attachment points.

15. The calf extension training device of claim 14 wherein the frame comprises two parallel C shaped beams, the parallel C shaped beams configured to accept one or more wheels attached to the sled.

16. The calf extension training device of claim 14 wherein the sled further comprises one or more hand holds.

17. The calf extension training device of claim 14 wherein the sled frame, the one or more shoulder extensions, or both are padded.

18. The calf extension training device of claim 14 wherein a plurality of sled attachment points are attached at a bottom end of the sled frame.

19. The calf extension training device of claim 14 wherein a plurality of frame attachment points are attached at a bottom end of the frame.

20. The calf extension training device of claim 14 wherein the one or more risers is adjustable.

21. A calf extension training device comprising:

a base;

a frame extending upward at an angle from the base, the frame having a top end, a bottom end, and one or more frame attachment points at the bottom end;

a foot support attached to the base or frame;

a sled, the sled comprising;

a sled frame having a top end and a bottom end, the sled frame configured to engage the user'"'"'s back;

two shoulder extensions at the top end of the sled frame, the two shoulder extensions configured to engage the user'"'"'s shoulders; and

one or more sled attachment points at the bottom end of the sled frame;

wherein the sled is configured to be lifted and lowered along the length of the frame;

one or more springs attached to the one or more frame attachment points and the one or more sled attachment points, the one or more springs configured to provide resistance as the sled is lifted; and

one or more riser guides configured to accept one or more riser extensions attached to the one or more risers, wherein the position of the one or more risers may be adjusted and then secured by one or more threaded pins threaded into one or more threaded holes formed in one or more sides of the one or more riser guides.

22. The calf extension training device of claim 21 wherein the at least a portion of the foot support extends at an angle perpendicular to the frame.

23. The calf extension training device of claim 21 wherein the frame comprises two parallel C shaped beams, the parallel C shaped beams configured to accept one or more wheels attached to the sled.

24. The calf extension training device of claim 21 wherein the sled further comprises one or more hand holds.

25. The calf extension training device of claim 21 wherein the sled frame, the one or more shoulder extensions, or both are padded.

26. The calf extension training device of claim 21 wherein the foot support is attached to and extends from the frame.