Method of attaching a fastening tape to a molded article

• US 5,342,569 A
• Filed: 03/11/1993
• Issued: 08/30/1994
• Est. Priority Date: 03/23/1992
• Status: Expired due to Fees

• Current Assignee: YKK Corporation
• Original Assignee: Yoshida Kogyo K.K.
• Inventors: Murasaki, Ryuichi
• Primary Examiner(s): Kuhns, Allan R.
• Application Number:
  US08/029,536
• Time in Patent Office: 537 Days
• Field of Search: 264/46.4, 264/46.7, 264/259, 264/267, 264/276, 264/278
• US Class Current: 264/259
• CPC Class Codes: A44B 18/0076 Adaptations for being fixed to a moulded article during moulding
• CPC Class Codes: B29C 44/1271 the preformed parts being partially covered
• CPC Class Codes: B29C 44/58 Moulds
• CPC Class Codes: B29L 2031/729 Hook and loop-type fasteners
• CPC Class Codes: B60N 2/5833 by hook-and-loop type fasteners
• CPC Class Codes: B60N 2/7017 characterised by the manufacturing process; manufacturing upholstery or upholstery springs not otherwise provided for

Abstract

A method is disclosed for attaching a fastening tape to a molded article and also a mold is disclosed for forming a cellular plastic or foam product for use as a cushioning material for an automobile seat or backrest.

The fastening tape is typically in the form of a velcro-like or surface-type fastener carrying on one side thereof a multiplicity of hooks and on the other side a plurality of anchoring members to anchor a molding materials M in the mold. A flexible sealing flange is formed on the tape for protecting the hooks against leakage therein of the molding material during the molding operation in which cooperating halves of the mold are closed with pressure-applying means engaged with and urging the tape against a flexible bottom wall of the cavity mold.

Claims

1. A method of attaching a fastening tape to an article to be molded in a mold comprising a core mold and a cavity mold having a flat bottom wall, said tape having a gripping element on one side and an anchoring element on the other side, the method comprising the steps of:

(i) positioning said tape in said mold at selected locations with the gripping element on said one side facing toward said bottom wall;

(ii) applying pressure with a projection on the core mold to said tape with the gripping element on said one side held flat against said bottom wall to form a liquid-tight seal therebetween;

(iii) closing said mold and filling the same with a molding material in a liquid phase to be anchored by said anchoring element;

(iv) curing said molding material; and

(v) removing the molded article from said mold with said gripping element exposed to view.

2. The method according to claim 1 wherein said fastening tape comprises a substantially flat base carrying on one side a gripping element in the form of a multiplicity of hooks and on the other side an anchoring element in the form of a plurality of anchoring members, and a flexible sealing flange extending integrally peripherally from said base in surrounding relation to said gripping element and being flared in a direction facing toward said cavity mold, said sealing flange having its marginal edge finished substantially flat and smooth.