Tunturipyora Oy

Sulevi Saarinen

A resistance mechanism, especially for exercise devices. The resistance mechanism comprises operating structure by which the user loads the resistance mechanism; a part rotating with the movement created by the operating structure; and a counterpart positioned at a distance from the rotating part, one of said parts being provided with magnets to create eddy currents resisting the movement of the operating structure. To achieve a mechanism suitable for exercise devices of different types, the counterpart comprises an element acting on the rotating part, said element being arranged to be rotated at a speed independent of the speed of rotation of the rotating part produced by the operating structure.

Resistance mechanism

An exercise device is described in which a flywheel fitted in a frame structure and rotated by a rider is provided with a brake mechanism for selectively braking the rotation of the flywheel, as desired. The brake mechanism comprises a copper strap fitted on the periphery of the flywheel and permanent magnet pieces attached to an arch pivotably mounted to the frame structure. The position of the arch is adjustable so that the distance of the magnet pieces from the copper strap varies in a predetermined manner to achieve a desired braking effect. To achieve a simple and clear display a two-arm lever is pivotably attached to the frame structure, the shorter arm of which being arranged to make contact with the arch and to follow the movements thereof. The end of the longer arm of the lever is arranged such that, when moved in response to movement of the shorter arm, acts as a basis for a display indicating the braking effect of the flywheel.

Flywheel brake mechanism for an exercise device

The invention relates to an arrangement for an exercise device. The arrangement comprises a bogie provided with running rolls for supporting a seat on a rail part. The edges of the rail part are provided with flanges so that the running rolls have room enough between the flanges. The lower flanges are thereby arranged to act as rolling surfaces for the runnng rolls when the bogie is positioned on the rail part. In order that the seat would move reliably on the rail part, a counter roll is provided on both sides of the bogie between the running rolls. The lower edge of the counter roll is arranged to be positioned at a distance from the rolling surface when the running rolls are supported on the rolling surfaces. The upper flanges are provided with counter surfaces which are supported only on the upper surfaces of the counter rolls when the running rolls rise off the rolling surfaces.

Arrangement for an exercise device

The invention relates to a torque metering device for a bicycle-type ergometer, in which ergometer the braking force is steplessly adjustable and in which the rotating movement is compensated by means of a flywheel. The rotating movement of the flywheel can be braked by means of a belt (5) which is pressed against the outer periphery of the flywheel and moves limitedly with the flywheel. The movement of the belt (5) with the flywheel is restricted by means of a spring member (6) connected to one end of the belt and the frame structure of the ergometer. In order to provide a reliable and easily readable metering device, the device is so constructed that it comprises a pin member (7) fastened on the belt (5) and means (8) for rotating an indicator (10) journalled for rotation. The rotating means (8) of the indicator are journalled on the frame structure (1) at the central portion thereof. One end of the rotating means (8) of the indicator is connected to the pin member (7), the other end being correspondingly secured on a shaft (12) of the indicator (10) in such a manner that a linear movement of the pin member (7) moves one end of the rotating means around the journalling point (11) of said means, thus effecting a corresponding rotating movement of the other end of the rotating means (8), which movement turns the indicator (10).

Growing community of inventors

Ilmarinen, Finland

Sulevi Saarinen