Patent ID: 6514105
Filing Date: 2003-02-04
Classification: H01R

Abstract:
A decorative lighting device comprising:a miniature incandescent lamp including upper and lower portions opposite to each other in an axial direction, and first and second lead-in wires extending downwardly and outwardly of said lower portion; a plug-in base disposed to receive said lower portion therein, and including a bottom wall that is disposed distal to said upper portion in the axial direction, and that extends in a first direction transverse to the axial direction, said bottom wall having right and left through holes spaced apart from each other in the first transverse direction, said second and first lead-in wires respectively passing through said right and left through holes to extend downwardly and outwardly of said bottom wall; a partition member extending downwardly in the axial direction from and formed integrally with said bottom wall of said plug-in base, and interposed between said right and left through holes; right and left urging lugs disposed on said partition member and opposite to each other in the first transverse direction, and respectively having bottom through holes which are communicated with said right and left through holes to permit said second and first lead-in wires led out of said bottom wall to be disposed outboard to said right and left urging lugs in the first transverse direction; a housing including an upper end wall confining an opening for passage of said plug-in base, a lower end wall opposite to said upper end wall in the axial direction, and having an inner peripheral portion defining a slot which is adapted to receive contact ends of two insulated electric leads extending therethrough, an inner intermediate circumferential surface defining a passageway which extends in the axial direction to communicate said opening with said slot, said inner peripheral portion being of such a dimension that when said plug-in base is inserted into said housing via said opening downwardly, said partition member is guided along said passageway so as to divide said slot into two separate inserting holes adapted for passage of the insulated electric leads therethrough and so as to cause said right and left urging lugs to respectively urge said second and first lead-in wires outwardly in the first transverse direction to be adapted to abut said second and first lead-in wires against the contact ends and to be adapted to clamp said second and first lead-in wires and the contact ends between said inner intermediate circumferential surface and said right and left urging lugs, an upper annular socket portion disposed between said opening and said inner intermediate circumferential surface, and having internal threads provided thereon, and a lower annular socket portion extending downwardly from said upper annular socket portion in the axial direction and disposed on said inner intermediate circumferential surface, and having such a dimension that said plug-in base can be pressed fittingly into said lower annular socket portion; a light transmissive member including a transmissive body confining a through hole chamber therein to enclose said miniature incandescent lamp, and an annular neck portion integrally formed with said transmissive body and disposed to provide access to said through hole chamber, said annular neck portion being sized to be insertable into said upper annular socket portion; and a flexible sleeve made of a material different from that of said light transmissive member, and press-fitted over said annular neck portion, said flexible sleeve having external threads to threadedly engage said internal threads on said upper annular socket portion.