Basf Aktiengesellschaft

Karlheinz Koenig

Lambert Kohl

Bernd Roeger

Ruediger Witz

A positioning apparatus has a guidance system including first and second bearing means in which a pressure on one side of a guide plate and a height adjustment on its other side to be positioned are sufficient to provide an unambiguous controlled guidance virtually without deviation from the axis of movement of the guide plate. An advantageous construction is provided by a rotary bearing arrangement substantially in the form of an isosceles triangle. A particular mounting pivot point on the bearing support simplifies the assembly of an apparatus having a band drive means. The apparatus is suitable for all types of information recording and playback apparatuses employing disks or disk-shaped media, and also for positioning purposes in robots, etc.

Apparatus for the positioning of objects having a low mass and a method

In a memory processing unit, a magnetic-head positioning device having a longitudinally actuated carriage with a guide plate carrying the head, or heads, which plate has longitudinal edges and an upper and lower face, one of these faces being in engagement with a spool wheel driving the plate via a belt and the longitudinal edges of the guide plate being guided between a pair of anti-friction bearings. Linear, three-point contact of the guide plate with the bearings and with the spool wheel is insured, regardless of lateral displacement of the guide plate, by mounting the bearings so that they are tiltable, in a plane transverse to the longitudinal movement of the guide plate, by a limited amount.

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Ludwigshafen, Germany

Karlheinz Koenig