Vitra Patente Ag

Vitra Ag

Alstom Hydro France

Thomas Kamber

Hermann Bock

Matthias Schmid

Thomas Schneider

Sascha Roos

Michael Frei

Martin Emanuel Sicker

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

A backrest device includes a backrest carrier having a support arm, a backrest mounted on the support arm, and an actuator that is adjustable between a blocking position and a movement position. The support arm is equipped with a latching row. The backrest is movable along the support arm. The actuator is connected to the backrest and has an engaging piece. In the blocking position, the engaging piece is engaged with the latching row, so that a movement of the backrest along the support arm is blocked. In the movement position, the engaging piece is disengaged from the latching row, so that the backrest is movable along the support arm. The actuator is manufactured in one piece from an elastic material, in the movement position the actuator being elastically deformed by a manually applied force, so that the engaging piece is moved out of the latching row.

Backrest device

A pressing module for the press-forming and curing of impregnated conductor bars for large electrical machines, such as for example hydro generators, can be distinguished by an improved closing system for applying the pressing pressure, and a pressing apparatus equipped therewith, the handling of which involves significantly reduced work. A pressing module () has a pressing vat () for applying a horizontal pressing force and a pressing yoke () for applying a vertical pressing force. The closing units () and () for applying the horizontal and vertical pressing forces have a housing (), which receives, slidingly mounted therein, a pressing piston (), which is in operative connection with an axially fixed, rotatable threaded bolt () in such a way that a turning movement of the threaded bolt () brings about an axial movement of the pressing piston (). An axial bearing (), supported on a spring assembly (), provides a flexible mounting of the pressing piston (). The threaded bolt () protrudes on the rear side of the housing () and is provided there with a contour () for receiving a tool, for example a pneumatic screwdriver.

Pressing module for impregnated conductor bars of large electrical machines and pressing apparatus equipped therewith

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Basel, Switzerland

Thomas Kamber