초록 ▼

A method for molding a closed profile member such as a sealing gasket, sequentially comprising a static step of molding a series of contiguous segments of an unprocessed strip with two ends. Each segment is moved substantially over its own length so that it is replaced by the following segment once

A method for molding a closed profile member such as a sealing gasket, sequentially comprising a static step of molding a series of contiguous segments of an unprocessed strip with two ends. Each segment is moved substantially over its own length so that it is replaced by the following segment once it has been molded, and the final segment is made by juxtaposing, connecting and molding the two ends of the unprocessed strip together. A mold with two mold tools operative along part of its length is used to carry out the method. A temperature gradient is generated so that the temperature at the mold ends is 25-35.degree. C. lower than the temperature at the center. The mold is part of a fixed or portable device including mold heating means and means for exerting pressure on the unprocessed strip.

대표청구항 ▼

[ What is claimed is:] [1.] A process for molding a closed elastomeric profile in a mold from a continuous, open, unprocessed strip of elastomeric material having two ends in a static operation, the process comprising:sequentially molding adjacent successive segments of the strip in the mold wherein

[ What is claimed is:] [1.] A process for molding a closed elastomeric profile in a mold from a continuous, open, unprocessed strip of elastomeric material having two ends in a static operation, the process comprising:sequentially molding adjacent successive segments of the strip in the mold wherein each segment is displaced substantially by its same length to take a place of a previous segment after molding the previous segment by shifting the strip in the mold, wherein the first end of the strip is left unprocessed prior to molding a first segment, and wherein the second end of the strip is left unprocessed after successive operations of molding adjacent segments,abutting the first and second ends of the strip left unprocessed in the mold by juxtaposing the first and second ends of the strip to thereby form a last segment wherein the length of juxtaposition represents a length at least equal to a length of a segment, andmolding the last segment of the strip in the mold to form a joint between the first and second ends to thereby form the closed elastomeric profile.