Sartorius Ag

Sartorius

Eberhard Lubke

Matthias Eger

Christoph Berg

Otto Kuhlmann

Gunther Maaz

Eberhard Stadler

Werner Schulze

Walter Sodler

Klaus Dardat

Hans-Heinrich Kohne

Gottfried Nolte

Jurgen Winkelbach

Michael Muller

Disclosed is a balance with a first parallel guide (3, 3') which resiliently connector a load receiver (2) to an area (5, 5') fixed to the housing and which is resiliently deformed under the influence of the weight to be measured, and with a second, softer parallel guide (8) which is connected by its one end to the load receiver (2) and by its other (11) end via a force receiver which is at least approximately without displacement to the area (5, 5') fixed to the housing and which transfers as a result thereof a fraction of the force of the weight onto the force measuring receiver that both parallel guides (3, 3', 8) exhibit at least approximately the same height and the same length and are arranged close to one another laterally. The second parallel guide is advantageously locate between two partial areas (3, 5, and 3', 5') of the first parallel guide.

Balance with force support

An electronic balance with a housing, a balance scale, a wind guard which at least partially surrounds the balance scale and with a display and control unit approximately in the plane of the balance scale. The display and control unit is mounted to the hosing in a manner that it can pivot around the wind guard about at least one vertical axis. This allows the balance to better adapt to various work positions of the operator. Further possibilities of adaptation result from the weighing-area opening of a rotationally symmetrical wind guard which opening can be adjusted as desired and also from the possibility of laterally shifting the display and control unit and/or from the possibility of rotating it about a vertical axis within the display and control unit and/or from the possibility of tilting it about a horizontal axis.

Electronic balance

In an electronic balance with a scale on top with two guide rods which connect a load receiver to a system carrier fixed to the housing as parallel guide, with at least one translation lever which is connected to the system carrier by means of two springs and with a coupling element (9) which transfers the force corresponding to the mass of the weighed material from the load receiver to the shorter lever arm of the translation lever while the counteracting force imposes on the longer lever arm of the translation lever. The two springs and the coupling element (9) are connected to each other by a common cross piece (8) and consist of a single sheet of metal, whereby the thickness of the sheet of metal is greater than the shorter lever arm of the translation lever and the material thickness is reduced in such a manner both in the area of the two springs and in the area of the coupling element (9) that the shorter lever arm is formed by an offset of the thin area (26) of the coupling element (9) produced in the longitudinal direction of the lever in relation to the thin areas (28) of the springs. The length of the shorter lever arm is determined only by the offset of the thin areas (26, 28) of the coupling element (9) and of the springs within the sheet thickness and can be very precisely manufactured by means of suitable manufacturing methods.

Electronic balance with scale on top

It is disclosed for a balance with a scale on top based on the principle of the electromagnetic compensation of force with a system carrier fixed to the housing, with a load receiver, with two guide rods which connect the load receiver to the system carrier in a vertically movable direction as parallel guide, whereby the stem carrier, the two guide rods and the load receiver are designed as a one-piece casting, with a translation lever and with a coupling element between load receiver and translation lever, whereby the force from the load receiver corresponding to the mass of the weighed material is transferred via the coupling element to the shorter lever arm of the translation lever and the coil of the electromagnetic compensation of force is fastened to the longer lever arm of the translation lever that the system carrier comprise lateral projections which extend into the area between the guide rod arms. This achieves a distinct reinforcement of the system carrier without having to increase the outer dimensions of the system. The stability of the entire system can be further increased by means of further reinforcement measures in the lad receiver and in the guide rod arms.

Balance with scale on top and parallel guide consisting of a one-piece

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Hardegsen, Germany

Eberhard Lubke