Abstract: A foldable scooter including a support device onto which a steerable front wheel is mounted and a rear carriage. The carriage is connected to the support device at the front of the carriage. The carriage is provided with at least one wheel at the rear. The carriage may be folded against the support device to form a compact unit which may be carried or wheeled. In an expanded position of the scooter, the front of the said carriage abuts a stop face connected to the support device. A rigid stay is connected to the carriage, which is pivotally connected at its first end to a mid-section of the carriage and is pivotally connected at its opposite end to the support device.

Abstract: An adjustable chair that includes a frame supporting a seat portion. The frame also supports a member on which a back portion is mounted. The seat portion is synchronously moveable with the back portion such that as the seat portion moves forwardly the back portion moves upwardly and as the seat portion moves rearwardly the back portion moves downwardly. The mechanism effecting this movement includes a feature allowing the independent movement of the back portion or the seat portion.

Abstract: For automatically adjusting the tilting resistance of a chair seat (6), which is tiltably attached on a base column (1) via a horizontal shaft provided across the chair, and where tilting resistance and springing are determined by two spring elements (13, 14), one spring is compressed by tilting in one direction and the other spring compressed by tilting in the opposite direction. The spring force is adjustable. In order to be able to adapt the tilting resistance to the seat's/backrest's setting automatically, the spring elements (13, 14) are connected to the seat/backrest by mans of a connecting element which directly influences their spring force by an adjustment of the seat and/or backrest.