# US 5,344,376 A · Exercise apparatus with turntable and pivoting poles

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- Number: US 5,344,376 A
- Document ID: US5344376A
- Status: Granted
- Kind: A
- Application number: 07/936,082
- Filed: 1992-08-26
- Granted: 1994-09-06
- Earliest claimed: 1992-08-26
- Assignees: NordicTrack, Inc.
- Inventors: James R. Bostic; John S. Dreibelbis; Pat J. Novak
- Web page: https://patentgrep.com/patent/US5344376A

## CPC

- A63B 22/0002: {involving an exercising of arms (for strengthening the upper limbs A63B23/12)}
- A63B 22/14: Platforms for reciprocating rotating motion about a vertical axis {, e.g. axis through the middle of the platform}
- A63B 21/015: including rotating or oscillating elements {rubbing against fixed elements}
- A63B 2022/0041: {one hand moving independently from the other hand, i.e. there is no link between the movements of the hands}
- A63B 2208/02: posture
- A63B 2210/50: Size reducing arrangements for stowing or transport
- A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H)

## Abstract

The present invention provides an exercise apparatus 100 having a turntable 120 rotatably mounted proximate one end of a base 110, and right and left poles 130 and 140 pivotally mounted proximate an opposite end of the base 110. A person stands on the turntable 120, swivels the hips to rotate the turntable 120, and reciprocally pushes and pulls the poles 130 and 140 against resistance provided by an adjustable resistance mechanism 150.

## Claims

### Claim 1

An exercise apparatus, comprising a base designed to rest upon a floor surface and extending from a front end to a rear end, a platform mounted to said base, right and left pivot arms extending between pivot ends mounted to said base and distal ends that can be grasped by a person standing on said platform, and a pivot assembly including right and left flanges secured to said base approximate said front end and extending upward from said floor surface, right and left brake pads positioned between said right and left flanges and adjacent respective flanges, with said pivot ends of said right and left pivot arms positioned between said right and left brake pads, and outwardly facing bearing plates on said pivot ends adjacent respective brake pads, and a single central brake pad positioned between inwardly facing bearing plates on said pivot ends, wherein said right and left flanges, said right and left brake pads, said pivot ends, and said central brake pad are secured relative to one another by a bolt extending through holes therein and a knob that mates with said bolt, and said pivot ends are rotatable relative to one another and said opposing flanges, subject to frictional resistance provided by said brake pads, whereby three brake pads engage four bearing plates and two flanges.

### Claim 2 (depends on 1)

An exercise apparatus according to claim 1, wherein said platform is rotatable relative to said base.

### Claim 3 (depends on 2)

An exercise apparatus according to claim 2, wherein said right and left pivot arms pivot independent of rotation of said platform.

### Claim 4 (depends on 1)

An exercise apparatus according to claim 1, wherein said right and left pivot arms pivot to a collapsed position in which all portions of the exercise apparatus are within six inches of the floor surface.

### Claim 5 (depends on 1)

An exercise apparatus according to claim 1, wherein tightening of said knob relative to said bolt increases the frictional resistance, and loosening of said knob relative to said bolt decreases the frictional resistance.

### Claim 6 (depends on 1)

An exercise apparatus according to claim 1, wherein each of said pivot arms includes an upper segment and a lower segment releasably fastened relative to one another, and each of said pivot arms is longer than said base, but each lower segment is shorter than said base and falls within the planform of said base when pivoted to a storage position.