# US 5,348,520 A · Exercise stepper

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 5,348,520 A
- Document ID: US5348520A
- Status: Granted
- Kind: A
- Application number: 08/151,818
- Filed: 1993-11-15
- Granted: 1994-09-20
- Earliest claimed: 1993-11-15
- Inventors: Shao-Ying Chang
- Web page: https://patentgrep.com/patent/US5348520A

## CPC

- A63B 21/0552: {Elastic ropes or bands}
- A63B 21/154: {using special pulley-assemblies}
- A63B 22/0012: {the exercises for arms and legs being functionally independent}
- A63B 22/0056: {the pivoting movement being in a vertical plane, e.g. steppers with a horizontal axis (platforms for rocking motion about a horizontal axis A63B22/16)}
- A63B 21/0083: {of the piston-cylinder type (using pneumatic piston-cylinder type force resistors A63B21/0087)}
- A63B 21/0442: {Anchored at one end only, the other end being manipulated by the user}
- A63B 21/0557: {Details of attachments, e.g. clips or clamps}
- A63B 23/03575: {Apparatus used for exercising upper and lower limbs simultaneously}
- A63B 2071/027: {using player's own weight, e.g. on a platform}
- A63B 2208/0204: Standing on the feet
- A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H)

## Abstract

An improved exercise stepper has a base, a pair of treadle pedals pivotably connected by the front ends thereof to each side of the supporting portion at the front end of the base, a lever device longitudinally swingably mounted in the base and a pair of oil pressure cylinders extensibly and swingably located between the front portion of the base and the bottoms of the pair of treadle pedals. The pair of treadle pedals are provided in the interior thereof each with an extensible type flexible rope pulling device formed by the free end extending to the outside on the front part of the treadle pedal and the other part being supported by a set of pulley wheels.

## Claims

### Claim 1

An exercise stepper, comprising:
a base,
a pair of treadle pedals pivotally connected by the front ends thereof to either side on a supporting portion of the front end of said base,
a lever device longitudinally swingably pivoted to said base,
and
a pair of oil pressure cylinders extensibly and swingably mounted on the front portion of said base and the bottoms of said pair of treadle pedals; characterized in that said pair of treadle pedals are provided in their interiors each with an extensible-type flexible rope pulling device formed by the free end thereof extending to the outside in front of the respective treadle pedal, and the rope pulling device being supported by a set of pulley wheels located within said interiors.

### Claim 2 (depends on 1)

An exercise stepper according to claim 1, wherein said pair of rope pulling devices are connected at their free ends each by a loose safety hook hitch and the two hook hitches have a common handle detachably connected between said hook hitches.

### Claim 3 (depends on 1)

An exercise stepper according to claim 1, wherein said pair of rope pulling devices are connected at their free ends each by a loose safety hook hitch and the two hook hitches each have a separate handgrip connected detachably therefrom.

### Claim 4 (depends on 1)

An exercise stepper according to claim 1, wherein said lever device comprises a lever body made of channel-section iron, a pair of transverse supporting shafts disposed respectively on the lateral side front part and on another lateral side rear part of said lever body and a pair of rollers rotatably inserted on said pair of transverse supporting shafts.