Device for sitting, has hollow body, which is under low pressure and filled with air or gas and has seating surface, where hollow body has vertically disposed air spring bellow

摘要

The device has a hollow body, which is under low pressure and filled with air or gas and has a seating surface. The hollow body has a vertically disposed air spring bellow (11), which is made of elastomeric material and arranged extending in longitudinal direction in a perpendicular manner. The air spring bellow has an upper cylindrical elongated section (10) and a conical elongated section (20) attached to the cylindrical elongated section.