摘要:
The invention relates to a pump unit (1) for inflating and deflating a pneumatic cushion (10), comprising a pump (2) with two conveying directions, a first fluid line (3) to connect the pump (2) to the pneumatic cushion (10), and a second fluid line (4) with which the pump (2) can be connected to a supply line or the atmosphere, as well as a first pressure sensor (7) that is connected to the first fluid line (3) or to the second fluid line (4) in order to measure a fluid pressure present in the fluid line (3, 4). The pump unit (1) also has a control unit (5) that is connected to the pump (2) and to the first pressure sensor (7). The pump (2), at least one part of the first fluid line (3), the second fluid line (4), the first pressure sensor (7) and the control unit (5) are arranged in a common housing (6).
摘要:
The present application relates to a vehicle seat (1) with a seat base (2) having a front edge (16; 16.1, 16.2) and a rear edge (17), and to a backrest (3) which is arranged on the rear edge (17) and is at an angle to the seat base (2). The seat base (2) is divided into a main part (4) and at least one front part (5; 5.1, 5.2). The main part (4) and the at least one front part (5; 5.1, 5.2) are movable relative to each other by means of an adjustment device in order to be able dynamically to adjust a distance between the front edge (16; 16.1; 16.2) and the rear edge (17) of the seat surface (2). Arranged between the main part (4) and the at least one front part (5; 5.1, 5.2) are at least two inflatable chambers (6, 7; 6.1, 6.2, 7.1, 7.2) which can be inflated and can be emptied depending on the distance (D; D1, D2) of the front edge (16; 16.1, 16.2) to the rear edge (17).