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US 10,022,903 B2Granted
Method of making a resin panel
AssigneeKyoraku Co., Ltd.
InventorsYu Igarashi, Tadatoshi Tanji, Tatsuya Fukuda
Life of this patent
Estimating the term…
Abstract
A resin panel includes a first structure and a second structure stacked on each other. The structures includes reference surfaces that serve as the front surface and the back surface of the resin panel respectively. Each of the structures includes a plurality of protrusions protruding inwardly from the reference surface. The protrusions of the structure face the protrusions of the other structure each other. Jutting portions of linear shape are formed between adjacent protrusions of each of the structures. The structures are joined such that apical portions of the protrusions of each structure abut one another.
Claims8
A method of making a resin panel comprising
- extruding a first molten resin material and a second molten resin material in a vertically downward direction between a pair of split molds, molding surfaces of the split molds including corresponding molding protrusions extending therefrom;
- moving a first of the pair of split molds and a second of the pair of split molds toward one another with the first and second molten resin materials extending therebetween;
- blowing the first molten resin material against the first of the pair of split molds forming a first structure;
- and
- blowing the second molten resin material against the second of the pair of split molds forming a second structure,
- wherein each of the first and second structures is formed with corresponding reference surfaces that serve as a front surface and a back surface of the resin panel, respectively,
- the blowing of the first and the second molten resin materials further includes forming a plurality of protrusions protruding inwardly from respective ones of the reference surfaces corresponding to the molding protrusions formed on the molding surfaces of the split molds, the protrusions of one of the first and second structures facing the protrusions of the other of the first and extruded structures, and the first and second structures being joining such that apical portions of the protrusions of one of the first and second structures abut apical portions of the protrusions of the other of the first and second structures, and jutting portions having a linear shape are formed between adjacent protrusions of each of the first and second structures during the blowing of the first and second molten resin materials, the jutting portions extending perpendicular to the apical portions, and, the molding surfaces of the split molds not having jutting portions formed thereon.
4 more elements
A method, of making a resin panel comprising
- extruding a first molten resin material and a second molten resin material in a vertically downward direction between a pair of split molds, molding surfaces of the split molds including corresponding molding protrusions extending therefrom;
- moving a first of the pair of split molds and a second of the pair of split molds toward one another with the first and second molten resin materials extending therebetween;
- applying vacuum to the first molten resin material against the first of the pair of split molds forming a first structure;
- and
- applying vacuum to the second molten resin material against the second of the pair of split molds forming a second structure,
- wherein, each of the first and second structures is formed with corresponding reference surfaces that serve as a front surface and a back surface of the resin panel, respectively,
- the applying of vacuum to the first and the second molten resin materials further includes forming a plurality of protrusions protruding inwardly from respective ones of the reference surfaces corresponding to the molding protrusions formed on the molding surfaces of the split molds, the protrusions of one of the first and second structures facing the protrusions of the other of the first and extruded structures, and the first and second structures being joining such that apical portions of the protrusions of one of the first and second structures abut apical portions of the protrusions of the other of the first and second structures, and jutting portions having a linear shape are formed between adjacent protrusions of each of the first and second structures during the blowing of the first and second molten resin materials, the jutting portions extending perpendicular to the apical portions, and, the molding surfaces of the split molds not having jutting portions formed thereon.
4 more elements
Dependencies are inferred from the claim text.