MOUTHPIECE AND TUBULAR LAMP

PROBLEM TO BE SOLVED: To provide a mouthpiece which can prevent flux from flowing down from a part to which a lead wire is soldered (connection) in a bottomed cylindrical body, and provide a tubular lamp in which the mouthpiece is joined to a bulb end. SOLUTION: This lamp 2A 1 is provided with a glass tube bulb 3 in which a sealing part 31 to seal the lead wire 4 to the end is formed, a light emitting source 5A installed at the lead wire 4 in the glass tube bulb 3, and the mouthpiece 1 in which the opening 13 side of the bottomed cylindrical base body 11 is joined to the end of the glass tube bulb 3 which is constituted by soldering 7 the tip to the body 11 by guiding the lead wire 4 led out of the bulb 3 end to the side face of the base body 11 via a lead wire guide groove formed along a mouthpiece axis. There is also provided the mouthpiece 1. COPYRIGHT: (C)2006,JPO&NCIPI