The resin make frame where the material detection by the infrared ray is easy and the resin make frame by the infrared ray material method of detection and material detection resolution manner and material detection resolution device null of the resin make

摘要

PROBLEM TO BE SOLVED: To sort the resin constitutive parts by accurately detecting a construction material of respective resin constitutive parts at disassembling time for abandonment of an appliance by forming a small plane infrared ray irradiating space in a part of a resin part to constitute a casing of an electric appliance. ;SOLUTION: Among an upper part 1 and a lower part 2 to constitute a resin case (a casing) of an electric appliance, for example, a small plane irradiating space 1a which is almost vertical to the irradiating direction of infrared rays IR and whose diameter and length are about 1 to 5mm, is arranged in a part of the upper part 1 and in a part of not directly exerting influence on use of a user. A shape of the space 1a may be an optional shape such as respective spaces 3a to 3c having a circular, elliptic and square shape. At recycling time, the reflected light is detected by irradiating the space 1a with the infrared rays IR, and a construction material of the upper part 1 is judged by its spectrum. Therefore, a construction material of an assembling part can be accurately detected, and quick and easy disassembling work and sorting work can be performed in a recyle at appliance abandoning time, and recycle cost can be reduced.;COPYRIGHT: (C)1997,JPO