Patent ID: 9744887
Date: 2017-08-29
CPC Classifications: A61H,B60N

Claim:
1. A seat, comprising: a backrest; a seat cushion; a plurality of adjusting elements operatively arranged in the backrest in order to carry out a lifting movement directed approximately perpendicularly to a contact surface of the backrest adapted to face a user, wherein the backrest comprises a plurality of regions including a right shoulder region, a left shoulder region, a right thoracic region, a left thoracic region, a right lumbar region and a left lumbar region, and wherein each of the plurality of regions has at least one of the plurality of adjusting elements arranged therein; and a control unit operatively coupled with the plurality of adjusting elements, the control unit controlling activation of the plurality of adjusting elements in a time-coordinated sequence whereby simultaneous activation of adjusting elements arranged in either vertically or horizontally adjacent regions of the backrest is avoided, and wherein the plurality of adjusting elements are adapted to apply a rotational movement to a user's back that is comparable to a rotational movement that occurs during walking, wherein: a first adjusting element of the plurality of adjusting elements is arranged in the right shoulder region; a second adjusting element of the plurality of adjusting elements is arranged in the left shoulder region; a third adjusting element of the plurality of adjusting elements is arranged in the right thoracic region; a fourth adjusting element of the plurality of adjusting elements is arranged in the left thoracic region; a fifth adjusting element of the plurality of adjusting elements is arranged in the right lumbar region; a sixth adjusting element of the plurality of adjusting elements is arranged in the left lumbar region; and wherein the control unit activates the adjusting elements in accordance with one of the following sequences: