Resistance type exercise device

• US 20030054924A1
• Filed: 09/20/2001
• Published: 03/20/2003
• Est. Priority Date: 09/20/2001
• Status: Active Grant

• Current Assignee: Robert W. Amore
• Original Assignee: Robert W. Amore
• Inventors: Amore, Robert W.
• Granted Patent: US 6,770,014 B2
• Time in Patent Office: Days
• US Class Current: 482/92
• 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 21/015 including rotating or oscillating elements rubbing against fixed elements
• CPC Class Codes: A63B 21/153 wound-up and unwound during exercise, e.g. from a reel
• CPC Class Codes: A63B 21/4025 Resistance devices worn on the user's body A63B21/065 takes precedence

Abstract

The present invention relates to a resistance type exercise device that uses frictional forces between members to provide resistance for a variety of different exercises. In operation, when a pull cord is withdrawn from the exercise device, a cord wheel converts the translational movement to rotational motion. A brake lever contacting a brake drum fixedly attached to the cord wheel provides a friction resistive force to the rotational motion. A recoil cord causes the recoil cord 900 to stretch and wrap around a bearing lug, placing the recoil cord in tension. The potential energy stored in the tensioned recoil cord is used to rewind the cord wheel and restore the pull cord back to its at rest position.

Claims

1. A resistance exercise device comprising:

a. a housing comprising a base housing, a top cover, and a hub shaft, the top cover covering the base housing to form an enclosure, the hub shaft joined to an inside surface of the base housing and oriented substantially perpendicular to the inside surface of the base housing so as to project towards the top cover;

b. a pull cord capable of substantially translation movement upon receiving a pull force;

c. a cord wheel rotatably mounted on the hub shaft in the housing, the cord wheel storing the pull cord in the retracted position, and converting the substantially translational movement of the pull cord to rotational motion;

d. a brake drum rotatably mounted on the hub shaft in the housing, the brake drum being concentrically oriented with the cord wheel, the brake drum being capable of interfacing with and rotating with the cord wheel by means of an interface mechanism;

e. a brake lever mounted to the housing, the break lever contacting the brake drum and providing frictional resistance to the rotation of the brake drum; and

f. a recoil mechanism attached between the cord wheel and housing for recoiling the pull cord on the cord wheel.

2. The resistance exercise device of claim 1 wherein the interface mechanism comprises one or more ratchet arms and a ratcheted inner rim, the one or more ratchet arms and ratcheted inner rim each having ratchet teeth.

3. The resistance exercise device of claim 2 wherein the ratcheted inner rim is integrated into the brake drum and the ratchet arms are pivotally connected to the cord wheel, the cord wheel having pivot points to attached the ratchet arms, the ratchet arms being springingly biased to provide constant pressure along the ratcheted inner rim of the brake drum.

4. The interface mechanism of claim 2 wherein the ratchet teeth of the ratcheted inner rim are engaged by the ratchet teeth of the one or more ratchet arms when the cord wheel is rotated by the translational movement of the pull cord while allowing for the unimpeded retraction of the pull cord.

5. The resistance exercise device of claim 1 wherein the recoil mechanism comprises:

a. a plurality of recoil bearings, each recoil bearing being rotatably connected to a recoil bearing post, the recoil bearing post being jointed to the inside surface of the base housing and oriented substantially perpendicular to the inside surface of the base housing so as to project towards the top cover; and

b. a recoil cord having a first and second end, the recoil cord be constructed of a resilient material, the first end of the recoil cord being connected to the housing and the second end of the recoil cord being attached to the cord wheel.

6. The resistance exercise device of claim 1 further comprising an adjustable means to selectively adjust the resistance.

7. The resistance exercise device of claim 6 wherein the brake lever is a v-shaped member having a first and second end, the brake lever being pivotally connected to the top cover, the top cover having a post to provide a pivot point for the brake lever.

8. The resistance exercise device of claim 7 wherein the adjustable means comprises a cam rigidly mounted to the hub shaft, the cam being slidably contacted by the first end of the brake lever pivoting the brake lever about the post in the top cover urging the second end of the brake lever into the brake drum.

9. The resistance exercise device of claim 8 wherein the cam has a plurality of cam profiles, each of the cam profiles being associated with a different level of resistance.