Nautilus, Inc.

William A Baker

Patrick A Warner

Andrew P Lull

Michael H Harding

Mu-Chuan Wu

Douglas A Crawford

Zachary D Krapfl

Richard W Trevino

Douglas J Golenz

An exercise unit that is a bench-based, has an easily adjustable load exercise system using a resistance engine that can provide a constant load level through the entire range of motion to approximate the use of free-weights, is portable, and reconfigures easily to several different shapes for different exercises. The exercise unit is compact, has a minimal vertical height, and weighs much less than the maximum resistance load that it can create. The bench unit can be stood on its end for compact storage.

Adjustable-load unitary multi-position bench exercise unit

A unique structure for an indoor exercise bike that provides strength in its design, as well as the flexibility to create an aesthetically appealing frame structure. The monocoque frame design, including two symmetrical halves joined together, forms a very strong, light shell that can take on a variety of shapes and sizes. The seat structure, handlebar structure, drive train and support platforms are all able to be readily attached to the primary frame structure to provide an exercise bicycle that is sturdy, easy to manufacture, and light enough to easily move when necessary.

Exercise bicycle

An exercise bicycle including a frame having a seat and handlebars, a high-inertia flywheel having a hub at a center of rotation, the flywheel being rotatably supported on the frame at the hub, and a drive train including a drive sprocket, a crank arm attached to and extending from the drive sprocket, and a pedal attached to the crank arm, the drive train being rotatably supported by the frame. The drive train also includes a slave sprocket fixed to the flywheel at the hub, with the drive and slave sprockets connected in a direct-drive relationship, the drive train driveable in a forward and rearward directions to cause the flywheel to rotate. A clutch mechanism is positioned in engagement with the slave sprocket and the hub to create a frictional engagement between the sprocket and the hub, and to establish a break-free force threshold. When the drive train is actuated in the forward direction, the slave sprocket and the hub move together, and when the drive train is actuated in the rearward direction under the influence of a force greater than the break-free force threshold, the clutch mechanism slips between the slave sprocket and the hub, allowing the slave sprocket and the flywheel to move independently of one another. The clutch mechanism including a spring tensioner whereby the break-free force may be adjusted.

Free wheel clutch mechanism for bicycle drive train

Adjustment assembly for exercise device

An exercise bicycle including a frame, an adjustable seat structure, and an adjustable handlebar structure. One example of the frame includes a front fork, a down tube connected with the front fork, a seat tube, and a bottom frame member. The down tube has a first section that extends downwardly and rearwardly from a top portion of the front fork and has a section horizontal section connected with the seat tube. The front fork, down tube, seat tube, and bottom frame member define a five sided structure. The frame also includes a rear support brace connected with the seat tube and the bottom frame member in a triangular configuration. The seat structure has a seat post that is adjustably supported in the seat tube. The seat structure also has a horizontal seat rail and a cooperating seat collar that slides back and forth on the seat rail to allow fore and aft adjustment of a seat connected with the seat collar. The handlebar structure is adjustably supported in the a head tube, which is connected to the top of the front fork, and provides a plurality of gripping positions for a user.

Exercise bicycle frame

Exercise device tubing

Exercise bicycle handlebar

Growing community of inventors

Longmont, CO, United States of America

William A Baker