Gebr. Happich Gmbh

Gerhard Zwirner

Kurt Cziptschirsch

Klaus-Peter Kaiser

A method and an apparatus for wrapping a cushioning member, particularly a sun visor, with a web of wrapping material formed from two blanks, in which one blank is placed on one main surface of the cushioning member and the second blank is placed on its other main surface. Each blank forms a continuously protruding flange in the center plane of the cushioning member. The flanges are clamped between two opposed web electrodes, and the flanges are welded peripherally to each other by high-frequency welding in such a manner than an inward-directed weld bead is formed by the flow of material at the flange edges facing the member. After the termination of the welding process, that is, after the disconnecting of the high-frequency voltage, the flanges remain clamped between the electrodes, possibly with an increase in the clamping pressure. Then the cushioning member is moved, by a punch that is movable perpendicular to the flanges, and is punched out (ejected) from the flanges, by being sheared from the flanges in the immediate vicinity of the flange edges facing the member, the web electrodes serving as auxiliary tools for the punch, one serving as a holder and the other as a die.

Method and apparatus for manufacturing a cushioning member

A plastic textile material comprising a fiber web such as woven and knitted fabrics, felt or velvet. The web may be covered with plastic on one side by a backing or the web fibers may be plastic coated. The plasticized web has a minimum weight per square meter of at least 300 grams and a maximum weight of 1,500 grams. Both the web of fibers and its plastic coating can be butt-welded in a high frequency field. The textile material can serve as a covering material for a padding, such as a sun visor.

High frequency weldable textile material

A swivel bearing for automobile sun visors has a bearing housing with a mounting bore which is circularly shaped at the entrance into the mounting bore and which gradually widens along one axis to be oblong at the outlet from the mounting bore. The short mounting arm of a L-shaped shaft, on which shaft the sun visor body is supported, is received in the mounting bore. The section of the mounting arm located within the mounting bore is itself conically narrowed between the entrance and the outlet from the mounting bore. From the inlet to the outlet, the mounting bore widens along the long axis of the bore to define a slot in which the mounting arm can pivot in a manner which allows alignment of the shaft with respect to an outer support housing in which the free end of the shaft is detachably receivable.

Swivel bearing for automobile sun visors

The disclosure concerns a sun visor for an automotive vehicle wherein the foamed body of the sun visor is surrounded by a covering layer of flexible, foil material. The sun visor body has a recess defined in it for holding a mirror or the housing that supports the mirror. The section of the covering layer overlapping the recess is more expansible than the remainder of the covering layer. To make this section more expansible, it is punched with holes defining a lattice of the material, and various shapes holes are disclosed.

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Haan, Germany

Gerhard Zwirner