Abstract: A chair having a base adapted to support the chair on a support surface, and a seat and backrest mounted on the base that includes a flexible backrest and a relatively simple tilt mechanism for tilting the backrest relative to the seat. The tilt mechanism includes a pair of dual cantilevered U-shaped springs mounted on opposite sides of the base and in communication with the backrest. The backrest is mounted to the tilt mechanism such that a rearward thrust applied by the user deflects an outer end of each U-shaped spring downwardly to enable rearward tilting of the backrest relative to the seat. Upon removal of the rearward thrust, the backrest elastically returns to its initial position under the biasing force of the U-shaped springs.

Abstract: Chair backrest, comprising a support structure constituted by a single piece of injected plastic material, including a bearing section having a front surface against which a user's back is to bear. The bearing section has an opening that extends in a lumbar region of the front surface. The backrest comprises a lumbar support panel movably positioned in said opening. The lumbar support panel has a front surface against which a lumbar region of the user's back is to bear and it has an outer perimeter that is connected to the edge of said opening by means of an elastic element that tends to thrust the support panel towards a position in which the front surface of the lumbar support panel projects anteriorly relative to the front surface of said bearing section.

Abstract: A folding table includes a base structure (12) and a resting surface (14) mounted upon the base structure (14). The resting surface oscillates between a substantially vertical inoperative position, and a substantially horizontal operative position. The resting surface (14) is mounted so that it can oscillate with respect to the base structure (12) about a first horizontal axis (26). The base structure (12) includes a retention device (38), which has at least one articulation arm (40) articulated to the base structure (12) about a second horizontal axis (30) parallel to the first axis (26), and a connection member (42, 142) operatively set between said arm (40) and the resting surface (14).

Abstract: An armrest of a chair which can be adjusted and which can be moved in a transverse horizontal direction with respect to the longitudinal direction of the armrest. Regardless of the position thus obtained, the armrest is capable of turning on an essentially vertical axis between two extreme positions, so to adapt to the specific needs of the user and to the activities to be performed in an optimal way.

Abstract: An armrest of a chair which can be adjusted and which can be moved in a transversal horizontal direction with respect to the longitudinal direction of the armrest. Regardless of the position thus obtained, the armrest is capable of turning on an essentially vertical axis between two extreme positions, so to adapt to the specific needs of the user and to the activities to be performed in an optimal way.