MANUFACTURING METHOD OF FOAMED MOLDINGS, FORMED MOLDINGS AND BUMPER ABSORBERS

• Main Authors: HIGASHIMACHI NAOYA, OKADA TAKEJI, SEYA KIYOTAKA, UMETANI TAKESHI
• Format: Patent
• Language: English; Japanese
• Published: 12.04.2018
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PROBLEM TO BE SOLVED: To provide a method of manufacturing a foamed molding which enables filling foam beads into parts in negative angles by preventing air trap.SOLUTION: When filling foam beads in a mold to manufacture a foamed molding with a groove which has protrusions in negative angle at both sides of its open-end, a manufacturing method is applied to emit air through a pore facing the part of the mold where the protrusions in negative angle are formed and to produce the foamed molding by thermally fusing the foam beads in the mold.SELECTED DRAWING: Figure 1 【課題】負角部における空気溜りを抑制し、負角部まで発泡ビーズを導入することが可能な発泡成形体の製造方法を提供する。【解決手段】溝部を備え、前記溝部の両側面における開口端部に突起状の負角部を備える発泡成形体を成形するための型内に発泡ビーズを充填させる際、前記型内における前記負角部が形成される領域と面するように前記型に設けられた孔から前記領域の空気を排出し、前記型内に充填された前記発泡ビーズを加熱融着させて発泡成形体を製造する発泡成形体の製造方法。【選択図】図１