Patent ID: 8448814

Claim:
Fit structure of a housing formed of two halves, wherein: a first half of the halves comprises a fit projection piece formed to stick out towards a second half of the halves, said fit projection piece having a fit tongue at a tip; and the second half comprises a presser part and an engaging piece between which a fit groove towards the first half is formed, wherein the fit projection piece, the presser part and the engaging piece are formed so that the fit tongue of the fit projection piece is positioned in the inner part of the fit groove along a root of the presser part when the fit projection piece is fit in the fit groove, wherein the housing further comprises: a nail stuck out in an inward or outward direction with respect to the housing; and a nail holder engaged with the nail, the nail and nail holder being located at one and the other of a part of the fit projection piece and a corresponding part of the engaging piece, said part of the fit projection piece being nearer to a root of the fit projection piece than the fit tongue, wherein the second half has a rectangular side; and the presser part comprises a rectangular presser piece located at an end of the rectangular side, wherein the nearer a position on a tip of the presser piece is to the edge of the end of the rectangular side, the longer a projection length of the tip of the presser piece becomes.