Automobile lighting or signaling device

An automobile vehicle lighting or signaling device comprising an assembly of parts, said assembly of parts comprising:

• a first part having a closed contour or an open contour;
• a joining member with a first adhesive side that receives said first part so that after sticking said first part to said joining member, said first adhesive side has a free region adjacent said closed contour or said open contour of said first part, said joining member also having a second adhesive side for receiving a second part;
• and
• an optical part having a guide member;
• wherein said free region is a portion of the first adhesive side that is exposed to a hole or opening defined by said closed contour or said open contour and that is accessible through said first part via said closed contour or said open contour and wherein said guide member is received in said hole or opening defined by said closed contour or said open contour so that said guide member engages and pierces through said free region;
• said joining member being positioned between said first part and said second part, said joining member comprising said first adhesive side adhered to said first part and said second adhesive side adhered to said second part;
• wherein said first part is a printed circuit board and said second part is a heat sink, said first adhesive side of said joining member adhering to said printed circuit board and said second adhesive side adhering to said heat sink;
• said guide member of said optical part being received in said hole or opening and engaging said first adhesive side and piercing through said joining member such that a portion of said first adhesive side is adhered to a surface of said guide member in order to secure said optical part to said printed circuit board.