Patent ID: 11890500
Assignee: nan
Field: Furniture, games (Other fields)
Classification: CPC A | IPC A

Claim 0:
1. A fitness apparatus having a housing, the housing comprising a first supporting element which is configured as a platform for supporting a foot or a part of an arm, and a second supporting element arranged thereon, the first supporting element and the second supporting element being each movable linearly in a first spatial dimension and in a second spatial dimension, the first spatial dimension and the second spatial dimension being located at right angles to one another, wherein the housing has at least one spring, by which a movement of the first supporting element or the second supporting element out of a respective starting position is counteracted by a force, wherein the housing further comprises:
a) a first coupling element, which couples the linear movement of the first supporting element in a first direction of a first of the two spatial dimensions to a linear movement of the second supporting element in a second direction, which opposes the first direction in the first of the two spatial dimensions, the first coupling element comprising:
i) a first gearwheel, which is arranged centrally on a surface area of the housing, and which has an axis of rotation which is at right angles to the first spatial dimension and to the second spatial dimension;
ii) a first rack fastened to the first supporting element and extending in the direction of the first spatial dimension;
iii) a second rack fastened to the second supporting element and extending in the direction of the first spatial dimension;

b) wherein the first rack and the second rack engage with the first gearwheel on opposite sides of the first gearwheel;
c) a second coupling element, the second coupling element comprising:
i) a second gearwheel, which is arranged centrally on the surface area of the housing and which has an axis of rotation which is at right angles to the first spatial dimension and to the second spatial dimension, the second gearwheel being arranged above or beneath the first gearwheel;
ii) a third rack fastened to the first supporting element and extending in the direction of the second spatial dimension;
iii) a fourth rack fastened to the second supporting element and extending in the direction of the second spatial dimension;

d) wherein the third rack and the fourth rack engage with the second gearwheel on opposite sides of the second gearwheel.