Patent ID: 11963616
Assignee: INNOTEC MOTION GMBH
Field: Furniture, games (Other fields)
Classification: CPC A | IPC A

Claim 0:
1. A seating furniture chassis, comprising:
a seat surface frame;
a lever mechanism;
a footrest connected to the seat surface frame by the lever mechanism, the footrest being convertible between a folded-in state in which the footrest is arranged below the seat surface frame and a folded-out state in which the footrest forms an obtuse angle with the seat surface frame;
a first guide element arranged laterally next to a first end of the seat surface frame and rigidly connected to the seat surface frame;
a first guide rail arranged laterally next to the first end of the seat surface frame and having a curved shape comprising a front end, a rear end, and a central region arranged between the front and rear ends, wherein the front and rear ends are arranged lower than the central region;
a second guide element arranged laterally next to a second end of the seat surface frame;
a second guide rail arranged laterally next to the second end of the seat surface frame;
a third guide element arranged laterally next to the first end of the seat surface frame;
a third guide rail having a curved shape and arranged laterally next to the first end of the seat surface frame;
a fourth guide element arranged laterally next to the second end of the seat surface frame; and
a fourth guide rail having a curved shape and arranged laterally next to the second end of the seat surface frame, wherein:
when the footrest is converted between the folded-out and folded-in states, the first guide element is guided in the first guide rail,
when the footrest is converted between the folded-in and folded-out states, the third guide element is guided in the third guide rail and the fourth guide element is guided in the fourth guide rail,
during guidance in the third and fourth guide rails, respectively, the third and fourth guide elements are guided only horizontally and downwards when the footrest is converted from the folded-in state to the folded-out state,
the lever mechanism comprises an elongated lever having an upper portion that is directly connected rotatably to the seat surface frame, a lower portion, and a longitudinal axis extending from the upper portion to the lower portion, and
the longitudinal axis of the lever extends in a forward and downward direction from the seat surface frame in the folded-in state of the footrest.