CONTROL VALVE FOR AN AIR SPRING AND MOTOR VEHICLE SEAT HAVING A CONTROL VALVE

摘要

The invention relates to a control valve (16) for an air spring, comprising a housing (41), an exhaust duct that has an exhaust tappet (26) for opening of closing the exhaust duct, which exhaust tappet interacts with a first control means (19), a ventilation duct that has a ventilation tappet (27) for opening or closing the ventilation duct, which ventilation tappet interacts with a second control means (20), and a supplemental duct having a supplemental tappet (28) for opening or closing the supplemental duct, which supplemental tappet interacts with a third control means (21), wherein a first air connection A connects to the exhaust duct and a second air connection P connects to the exhaust duct together with the supplemental duct, wherein a first control means (19) and a second control means (20) are arranged to one another in such a manner that said control means cannot be actuated at the same time by an control element (18), and wherein the second control means (20) and the third control means (21) are arranged to one another in such a manner that the supplemental duct can only be opened when the ventilation duct is opened. The invention further relates to a motor vehicle seat comprising a mechanical swing system and an air spring, which motor vehicle seat has such a control valve.

主权项

1. Control valve (16) for an air spring with a housing (41),
with a venting channel which has a vent tappet (26) for opening or closing the venting channel which interacts with a first control means (19), with an air-supply channel which has an air-supply tappet (27) for opening or closing the air-supply channel which interacts with a second control means (20), and with an additional channel which has an additional tappet (28) for opening or closing the additional channel which interacts with a third control means (21), wherein a first air connection (A) is connected to the venting channel and a second air connection (P) is connected to the air-supply channel together with the additional channel, wherein the first control means (19) and the second control means (20) are arranged relative to each other such that they cannot be actuated simultaneously by an operating element (18), and wherein the second control means (20) and the third control means (21) are arranged relative to each other such that the additional channel can only be opened when the air-supply channel is opened.