Fiber molded article
View Patent ↗According to one embodiment, a fiber molded article includes fiber impregnated with thermoplastic resin, a plane base portion molded from the fiber, and a wall portion molded from the fiber and extending to an outside of a surface of the base portion to form an outer edge of the base portion. The wall portion has a through-hole. An entire periphery of an inner peripheral surface of the through-hole is covered with a film. The film is formed by melting the thermoplastic resin soaked into the fiber on the inner peripheral surface.
1. A fiber molded article comprising:
a plane base portion;
a wall portion forming an outer edge around the base portion; and
a through-hole provided in a part of the wall portion,
the base portion and the wall portion molded from fiber impregnated with thermoplastic resin,
an inner surface of the through-hole covered with a melted and re-solidified film of the thermoplastic resin which impregnates the fiber.
2. The fiber molded article of claim 1 , wherein
an opening area of the through-hole in the wall portion is reduced by a thickness of the film.
3. The fiber molded article of claim 1 , wherein
a diameter of an opening portion at one end of the through-hole in the wall portion is larger than a diameter of another portion of the through-hole.
4. An electronic device comprising a housing, the housing comprising:
a plane base portion;
a wall portion forming an outer edge around the base portion; and
a through-hole provided in a part of the wall portion,
the base portion and the wall portion molded from fiber impregnated with thermoplastic resin,
an inner surface of the through-hole covered with a melted and re-solidified film of the thermoplastic resin which impregnates into the fiber.
5. The electronic device of claim 4 , wherein
an opening area of the through-hole in the housing is reduced by a thickness of the film.
6. The electronic device of claim 4 , wherein
a diameter of an opening portion at one end of the through-hole in the housing is larger than a diameter of another portion of the through-hole.
7. A method for manufacturing a fiber molded article, the method comprising:
forming a plane base portion and a wall portion, the wall portion forming an outer edge around the base portion, the base portion and the wall portion molded from fiber impregnated with thermoplastic resin;
forming a through-hole in a part of the wall portion;
hot-pressing the fiber impregnated with the thermoplastic resin;
melting the thermoplastic resin on an inner surface of the through-hole;
forming a film covering the inner surface of the through-hole by the molten thermoplastic resin; and
re-solidifying the film.