Resin molded product, refrigerator, manufacturing method of resin molded product and mold

Claims

1. a first resin molded member that constitutes an exterior design surface; a second resin molded member provided on the rear side of the first resin molded member and having at least one of a convex portion and a concave portion formed on the rear surface thereof; The first resin molded member and the second resin molded member are joined by lamination molding, with the back surface of the first resin molded member and the front surface of the second resin molded member melted and joined together. Resin molded product.

2. The exterior design surface and the back surface of the first resin molded member do not have an uneven shape. The resin molded product according to claim 1.

3. the first resin molded member is composed of a single member, The second resin molded member is configured by dividing it into a plurality of members. The resin molded product according to claim 1 or 2.

4. The thickness of the first resin molded member is 0.6 mm or more. The resin molded product according to claim 1 or 2.

5. the first resin molded member and the second resin molded member are joined by thermal welding; The resin molded product according to claim 1 or 2.

6. the first resin molded member and the second resin molded member are molded from different resin materials; The resin molded product according to claim 1 or 2.

7. the first resin molded member is molded from a metallic resin, The second resin molded member is molded from recycled resin or biomass plastic. The resin molded product according to claim 6.

8. The first resin molded member is configured to have a uniform thickness. The resin molded product according to claim 1 or 2.

9. The second resin molded member does not constitute an exterior design. The resin molded product according to claim 1 or 2.

10. A rib structure having different thicknesses in a direction perpendicular to the surface where the first resin molded member and the second resin molded member are joined is formed on the back surface of the second resin molded member. The resin molded product according to claim 1 or 2.

11. The back surface of the first resin molded member and the front surface of the second resin molded member are both melted and fused together. The resin molded product according to claim 1 or 2.

12. The resin molded product is a handle for a refrigerator. The resin molded product according to claim 1 or 2.

13. Equipped with the handle described in claim 12. refrigerator.

14. A method for manufacturing a resin molded product by injection molding, comprising: a step of primarily molding a first resin molded member having an exterior design surface; a step of secondary molding a second resin molded member having a surface on which at least one of a convex portion and a concave portion is formed onto the first resin molded member, joining a surface opposite to the surface on which at least one of the convex portion and the concave portion is formed to the first resin molded member by melting an interface between the first resin molded member and the second resin molded member, and laminating and molding the first resin molded member and the second resin molded member; Equipped with A method for manufacturing resin molded products.

15. A method for manufacturing a resin molded product by injection molding, comprising: a step of primarily molding a second resin molded member having a surface on which at least one of a convex portion and a concave portion is to be formed; a step of secondary molding a first resin molded member having an exterior design surface onto the second resin molded member, joining a surface opposite to a surface on which at least one of the convex portion and the concave portion is formed to the first resin molded member by melting an interface between the first resin molded member and the second resin molded member, and laminating and molding the first resin molded member and the second resin molded member; Equipped with A method for manufacturing resin molded products.

16. a gate for injecting resin to mold the first resin molded member is provided at one location on a side wall of the first resin molded member, and the first resin molded member is molded by injecting resin through the gate; The method for producing the resin molded product according to claim 14 or 15.

17. The first resin molded member and the second resin molded member are molded by sliding and interchanging a first slide mold for molding the first resin molded member and a second slide mold for molding the second resin molded member. The method for producing the resin molded product according to claim 14 or 15.

18. The first resin molded member and the second resin molded member are molded by the first slide mold and the second slide mold, which have different mold temperatures. The method for producing the resin molded product according to claim 17.

19. The mold temperature of the first slide mold is set to be 1 to 50°C higher than the mold temperature of the second slide mold; The method for producing the resin molded product according to claim 18.

20. The mold temperature of the second slide mold is 30 to 60 ° C. The method for producing the resin molded product according to claim 19.

21. The first resin molded member is configured to have a uniform thickness. The method for producing the resin molded product according to claim 14 or 15.

22. The second resin molded member does not constitute an exterior design. The method for producing the resin molded product according to claim 14 or 15.

23. A rib structure having a different thickness in a direction perpendicular to the surface where the first resin molded member and the second resin molded member are joined is formed on the back surface of the second resin molded member. The method for producing the resin molded product according to claim 14 or 15.

24. Both the back surface of the first resin molded member and the front surface of the second resin molded member are melted and fused together. The method for producing the resin molded product according to claim 14 or 15.

25. The resin molded product is a refrigerator handle. The method for producing the resin molded product according to claim 14 or 15.

26. A mold for molding the resin molded product according to claim 1, a slide structure in which a first slide mold for molding the first resin molded member and a second slide mold for molding the second resin molded member are alternately replaced for each molding, and mold temperatures of the first slide mold and the second slide mold are set individually; Mold.

27. The mold temperature of the first slide mold is set to be 1 to 50°C higher than the mold temperature of the second slide mold.

27. The mold of claim 26.

28. The mold temperature of the second slide mold is 30 to 60 ° C.

28. The mold of claim 27.