portion with a part thereof left as it is connected to the plate portion for bending reference is made to fig3 a 3 b 4 a and 4 b showing the state of assembling at essential portions of the shielding case as described so far it is to be noted that fig3 a and 4 a are top plan views of the portions while fig3 b and 4 b are views as observed in the direction of the arrows b in fig3 a and 4 a respectively in the assembling work of the shielding case before folding the plate portions 1a and 1e the plate portion 1f is folded to be erected on the plate portion 1e as shown in fig3 a and 3 b in this case the cut and raised portion 2 formed on the plate portion 1a is bent in the direction indicated by an arrow n from the above state as the plate portion 1e is folded in the direction of an arrow l about the connecting portions 30 and 31 as the fulcrum the plate portion 1f may be folded to a position shown in fig4 b through a state indicated by two dotted lines in fig3 b without interfering with the other confronting plate portion thereafter when the cut and raised portion 2 is restored in the direction indicated by an arrow m to be flush with the surface of the plate portion 1a no chipped portion is present in the plate portion 1a reference is also made to fig5 a.