Lear. has filed a patent for a mold component that forms foamed parts with a three-dimensional shape. The component includes a magnetic block attracting a hook strip with a ferrous metal component, allowing the strip to conform to the shape. This innovation simplifies the molding process for attaching trim covers. GlobalData’s report on Lear gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Lear, Battery management systems was a key innovation area identified from patents. Lear's grant share as of January 2024 was 64%. Grant share is based on the ratio of number of grants to total number of patents.

Mold component for forming foamed parts with magnetic attachment

Source: United States Patent and Trademark Office (USPTO). Credit: Lear Corp

A patent application (Publication Number: US20240033976A1) discloses a mold component designed for molding processes, comprising a magnetic block with permanent magnets that define a three-dimensional surface and an attachment strip-receiving recess. The magnetic block attracts and holds an attachment strip made of ferrous metal, allowing it to conform to the curved surface. The mold component can be used as a mold insert or a molding chamber section, with the three-dimensional shape being curved, concave, or convex. The attachment strip, such as a hook strip, includes layers like a backing layer, hook layer, and a ferrous metal-containing layer, with a peelable protective layer on top. The magnetic block can also be combined with a metallic block to hold the attachment strip securely during the molding process.

Furthermore, the patent application describes a method for molding a foamed part using a molding chamber equipped with the magnetic block mold component. The process involves positioning a hook strip in the recess, allowing the magnetic block to attract and hold it in place as the foam precursors react to form the foamed part. Once the part is removed from the chamber, a trim cover can be attached, with the hook strip securing it to a mating region. This innovative mold component and method streamline the molding process by securely holding attachment strips in place, ensuring precise molding of parts with complex three-dimensional shapes like curves, concaves, and convexes, ultimately enhancing the efficiency and quality of the manufacturing process.

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