Vitra Patente Ag

Vitra Ag

Thomas Schneider

Hermann Bock

Thomas Kamber

Thomas Bieling

Maik Fischer

A support component for a chair is disclosed that includes a rigid base element, a support structure and a flexible cover. The support structure is mounted on the base element such that there is a space between the base element and the support structure when the support structure is without load. The cover is mounted directly on the support structure so that the cover rests on the support structure.

Support component, armrest with such a support component and chair with such an armrest

A synchronous chair mechanism is disclosed for simultaneously changing a seat and a backrest of a chair from a zero position in which the backrest is tilted to a minimum extent relative to the seat, into an end position in which the backrest is tilted to a maximum extent relative to the seat. The synchronous chair mechanism includes a base that is connectable to a substructure provided for setting up the chair. The synchronous chair mechanism also includes a backrest carrier on which the backrest is mountable, a seat support that is designed for holding a seat, and a spring element having a front end and a rear end.

Synchronous chair mechanism and chair having same

An actuator device is disclosed that permits a first element to be moved linearly, in particular quasi-vertically, relative to a second element. The actuator device may be provided, in particular, for a vertical movement of a backrest, for example in a piece of seating furniture such as an office chair. The actuator device includes a displacement profile within a guide housing and a locking element. The displacement profile includes a latching row and the locking element is configured for engagement with the latching row. In a latching position, the locking element is resiliently rotated into the latching row of the displacement profile, and rotates back and forth when the displacement profile moves in a first direction with respect to the guide housing. In a release position, the locking element is rotated into a retaining position until it is disengaged from the latching row of the displacement profile.

Actuator and backrest device, and piece of seating furniture having one such

A chair is disclosed having a mechanism with a spring unit that permits mutually synchronous deflection between a backrest and a seat over a range between a respective zero position of back and seat inclination and a respective maximum back or seat inclination. Stationary first and second axes of rotation extend through a base support of a carrier unit. A back carrier is articulated on the first axis of rotation, and a third axis of rotation extends through the back carrier. A front of a base plate lies movably on the base support and a rear of the base plate is articulated on the third axis of rotation. The base support has a U-shape with two arms thereof having portions extending upward to engage associated openings in the base plate. When the mechanism is deflected, a relative displacement between the arms and the openings occurs.

Chair having a deflection that is mutually synchronous between backrest and a seat

The chair is of the type with mutually synchronous adjustment between back inclination and seat inclination, namely via a region between a respective zero position of back inclination (R) and seat inclination (S) and a respective maximum back inclination and seat inclination. The chair has a substructure () which is intended for placing on the floor and on which a base () is fastened rigidly. A seat support () which has a seat region and a back region is connected to the base (). Furthermore, the chair includes two backrest bows () which are deflectable differently with respect to each other and are fastened on one side to the base () and on the other side to the back region of the seat support (). The two backrest bows () are coupled independently of each other to the base () on a stationary first axis of rotation (D). The seat region of the seat support () is coupled to the base () on a stationary second axis of rotation (D). The two backrest bows () are coupled independently of each other to the back region of the seat support () on an elastically deformable third axis of rotation (D). The back region of the seat support () is twistable elastically. The seat support is covered with a cover. In the configuration as an office swivel chair, a height-adjustable pneumatic spring () on which the base () rests in order to adjust the seat support () to a height corresponding to a user's needs and in order to configure said seat support () to be rotatable about a vertical axis (V) is arranged in the substructure ().

Growing community of inventors

Schwörstadt, Germany

Thomas Schneider