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US 12,552,073 B2Granted
Injection molded product
AssigneeResonac Corporation
InventorsTakeshi Funatsu, Shingo Nakano, Naoko Mitsuishi, Kouji Yamada, Hiroaki Fujino, Hirofumi Shiokawa, Yoji Hirai
Life of this patent
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Abstract
An injection molded product includes a main body portion having a design surface and an opposite surface; and a projecting portion provided at a peripheral edge portion of the main body portion, and projecting out toward a side opposite from the design surface in a thickness direction of the main body portion, wherein a thickness A of the main body portion and a thickness B of the projecting portion satisfy a relationship of A≥B.
Claims4
An injection molded product comprising:
- a main body portion having a design surface and an opposite surface and being shaped as a plate that is bent at a bent portion;
- and
- a projecting portion provided at a peripheral edge portion of the main body portion, and projecting out toward a side opposite from the design surface in a thickness direction of the main body portion,
- wherein a thickness A of the main body portion and a thickness B of the projecting portion satisfy a relationship of the following formula (1)
- when a cross-section of the main body portion is observed, the projecting portion exists at a terminal end of the main body portion,
- the projecting portion has a foamed layer at an interior thereof, and the thickness of the projecting portion is uniform,
- A≥B formula (1).
4 more elements
A method of manufacturing an injection molded product comprising:
- a main body portion having a design surface and an opposite surface and being shaped as a plate that is bent at a bent portion;
- and
- a projecting portion provided at a peripheral edge portion of the main body portion, and projecting out toward a side opposite from the design surface in a thickness direction of the main body portion,
- wherein a thickness A of the main body portion and a thickness B of the projecting portion satisfy a relationship of the following formula (1),
- when a cross-section of the main body portion is observed, the projecting portion exists at a terminal end of the main body portion, and
- the thickness of the projecting portion is uniform,
- the method comprising manufacturing steps that include a step of injecting a resin material from a gate into a cavity of a mold that has:
- a fixed side mold having the gate through which a resin material is injected;
- and a movable side mold that can move in opening/closing directions with respect to the fixed side mold, and that forms the cavity, which is a gap, between the movable side mold and the fixed side mold,
- wherein a distance over which the resin material flows within the cavity is less than or equal to 600 mm,
- A≥B formula (1).
8 more elements
Dependencies are inferred from the claim text.