U.S. Philips Corporation

Georg Kammler

Stefan Muller

Herbert Platzer

Norbert Kunze

Georg Weber

Helmut Kaufer

Wolfgang Fallenbeck

A method for outsert molding a movable plastic part on a metal plate, wherein the movability is obtained automatically through the shrinkage of the plastic. The plastic part consists of a bridge element which traverses a hole in the metal plate and is integrally connected to opposing retaining elements by a film element. The size, shape, and rigidity of the film, bridge, and retaining elements are such that the forces produced during the shrinkage process lift the retaining elements off the metal plate.

Method of producing a movable plastic part on a metal plate

A method of manufacturing a functional part of synthetic resin material in a bearing plate so as to have good bearing properties. The functional part is formed at a bearing plate by a synthetic-resin injection-molding technique (outsert molding technique) with a bridge portion extending through a hole having hole walls of the bearing plate and with integral retaining portions disposed at both plate surfaces laterally of the hole. The functional part consisting of the bridge portion and the retaining pieces is then changed by a deformation process following the injection-molding operation so that it forms a rotation or slide bearing together with the bearing plate. In the deformation process, the synthetic resin material is pressed away by a mandrel acting on an internal wall of a bore in the bridge portion to cause the synthetic material to flow towards the hole wall of the bearing plate and longitudinally towards the plate surfaces. A load-resistant, partial molecular re-orientation is obtained, which may be rendered heat-resistant after the deformation through fixation and possibly by storing.

Method of manufacturing a plain bearing for a movable functional part of

A technical device, particularly an electromechanical deck for moving information carriers, has at least one plastics function part (25) formed on a metal plate, which part has been moulded onto the metal plate (8) by outsert-moulding and comprises at least one bridge element (28), which traverses a hole (26) in the metal plate (8), and retaining elements (30, 31), which are situated on the metal-plate surfaces (8a, 8b) and are interconnected by the bridge element (28), the movability of the function part (25) as a slidable or rotatable part being obtained automatically through shrinkage of the plastic by the following construction:

Technical device, particularly electromechanical deck for moving

A technical device, such as an electromechanical deck for moving information carriers, includes a plastics function part molded into a deck plate by outsert-molding. The function part includes a bridge element, which traverses a hole in the deck plate, and retaining elements, which are situated at the deck plate surfaces and are interconnected by the bridge element, the plastics of said part being subject to shrinkage after injection-molding. The mobility of the function part as a rotatable or slidable part is obtained automatically despite shrinkage of the plastics part by positioning the retaining elements at each end of the bridge element so that they do not overlap, when viewed in the axial direction of the bridge, with a retaining element at the opposite end of the bridge.

Technical device with outsert molded parts having improved bearing

An technical device, particularly an electromechanical deck for moving information carriers, has one plastics part formed on a deck plate, which part has been moulded onto the deck plate by outsert-moulding and has at least one bridge element which traverses a hole in the deck plate, and retaining elements, which are situated at the deck plate surfaces and are interconnected by a bridge element, the plastics of said part being subject to shrinkage after injection-moulding, the mobility of the plastics part relative to the deck plate as a rotatable or slidable part being obtained automatically through its shrinkage by the following construction:

Growing community of inventors

Berlin, Germany

Georg Kammler