Plastic shell structure for radio telephone

Claim 1

A shell for a radio telephone, wherein a radio telephone unit may be disposed in a final assembly step, comprising: an integral box-like base having a planar bottom, two side walls and two end walls, said walls being positioned perpendicularly to said bottom, said two side walls and one of said end walls being of equal height, the other end wall being lower in height, apertures being provided in said other end wall at the ends thereof near the intersections with said side walls, upper portions of the insides of said two side walls being provided with L-shaped grooves having intersecting legs, one of said legs being oriented substantially parallel to said planar bottom and the other said leg opening toward the upper edge of the associated side wall, a groove provided in each of said side walls perpendicular to said bottom and near said intersections with said other end wall; a substantially planar cover similar in shape to said planar bottom, two opposite edges of said cover being provided with locking elements, the number and location of said locking elements corresponding with the number and location of said L-shaped grooves of said side walls; a locking part for insertion into said grooves, said locking part including flexible locking tongues having enlarged tip ends, said tip ends being engaged in said apertures of said other end wall when said shell is assembled, said cover being locked to said base by respective engagement of said locking elements on said cover with said L-shaped grooves, said cover being further locked to said base by the locked presence of said locking part.