# US 2014/0194255 A1 · Fitness apparatus

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

- Number: US 2014/0194255 A1
- Document ID: US20140194255A1
- Status: Published application
- Kind: A1
- Application number: 13/804,665
- Filed: 2013-03-14
- Published: 2014-07-10
- Earliest claimed: 2013-01-07
- Assignees: Dyaco International Inc.
- Applicants: Dyaco International Inc.
- Inventors: Hsuan-Fu HUANG; Shih-Wei LIU
- Web page: https://patentgrep.com/patent/US20140194255A1

## CPC

- A63B 23/03591: {Upper and lower limb moving in phase, i.e. right foot moving in the same direction as the right hand}
- A63B 22/001: {by simultaneously exercising arms and legs, e.g. diagonally in anti-phase (A63B22/0076 takes precedence)}
- A63B 22/0015: {with an adjustable movement path of the support elements}
- A63B 22/0664: {performing an elliptic movement}
- A63B 23/03583: {Upper and lower limbs acting simultaneously on the same operating rigid member}
- A63B 21/005: using electromagnetic or electric force-resisters
- A63B 21/012: using frictional force-resisters {(electromagnetically-controlled brakes A63B21/0056)}
- A63B 21/225: {with flywheels}
- A63B 2022/002: {electronically, e.g. by using a program}
- A63B 2022/0682: {with support elements being cantilevered, i.e. the elements being supported only on one side without bearing on tracks on the floor below the user}
- A63B 2071/009: {Protective housings covering the working parts of the apparatus}
- A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H)

## Abstract

A fitness apparatus includes a chassis, two linkages, two handlebars, two cranks and two joint bars. Each of the linkage includes a first linking-up part and second linking-up part transversally. The first linking-up parts are pivotably attached to the cranks for revolution of the cranks relatively to the chassis. Each of the handlebars includes a lower portion pivotably attached to the second linking-up portion, and an upper portion which can be held by the user to move along a closed elliptical trajectory. Each of the joint bars includes a rear and portion pivotably attached between the upper portions and the lower portions, and a front end portion pivotably attached to the chassis. In this way, the user's arms can take exercise effectively along an elliptical trajectory to further prevent the user from suffering sports injury resulting from incorrect posture.

## Claims

### Claim 1

A fitness apparatus comprising:
a chassis for being mounted on a support surface and having a bottom frame, a framework being fixed to a front end of the bottom frame;
a crank assembly mounted in the framework and having two opposite cranks coaxially mounted to the chassis;
two leg-exercising assemblies hung on the framework, each of the leg-exercising assemblies having a linkage, each of the linkage having a first linking-up part and a second linking-up part transversally, the first linking-up parts being pivotably attached to the cranks for revolution of the cranks relatively to the chassis; and
two arm-exercising assemblies located at left and right sides of the chassis respectively, each of the two arm-exercising assemblies having a handlebar and a joint bar, each of the handlebars having a lower portion and an upper portion, the lower portions being pivotably attached to the second linking-up parts, the upper portions being for a user to hold to take exercise based on a closed elliptical trajectory, each of the joint bars having a rear end portion and a front end portion, each of the rear end portions being pivotably attached between the upper and lower portions of each handlebar, the front end portions being pivotably attached to the chassis.

### Claim 2 (depends on 1)

The fitness apparatus as defined in claim 1, wherein each of the leg-exercising assemblies further comprises a first link, a catch bar, a second link, a swing arm, and a support bar; each of the linkages comprises a third linking-up part and a fourth linking-up part longitudinally, the first link having a first end portion and a second end portion, the first end portion being pivotably attached to the third linking-up part, each of the catch bars having a first catch portion and a second catch portion, the first catch portion being pivotably attached to the second end portion, the second link having a first pivotable portion, a second pivotable portion, and an adaption portion, the first pivotable portion being pivotably attached to the second catch portion, the adaption portion being pivotably attached to the chassis, the swing arm having a pivotal portion and a swing portion, the pivotal portion being pivotably attached to the second pivotable portion, the support bar having a first connection part, a second connection part, and a support portion, the first connection part being pivotably attached to the fourth linking-up part, the second connection part being pivotably attached to the swing portion, the support portions being for supporting the user's feet.

### Claim 3 (depends on 2)

The fitness apparatus as defined in claim 2, wherein the swing arms are located behind the linkages; each of the support bars extends forward and backward; the first connection part is located at a front end of the support bar and the support portion is located at a rear end of the support bar; the second connection part is located between the first connection part and the support portion.

### Claim 4 (depends on 2)

The fitness apparatus as defined in claim 2, wherein the first and second linking-up parts of each linkage are mounted between the third and fourth linking-up parts.

### Claim 5 (depends on 1)

The fitness apparatus as defined in claim 1, wherein the framework comprises a first standing part, a second standing part, and a linking part, the first standing part being located at a front end of the second standing part, the linking part being located between the first and second standing parts.

### Claim 6 (depends on 5)

The fitness apparatus as defined in claim 5, wherein the front end portions of the joint bars are pivotably attached to the first standing part.