Method for manufacturing fluorescent lamp using lead wire holding block

A method for manufacturing a fluorescent lamp comprising the steps of:

• arranging a pair of lead wires between a holding block provided with two lead-wire grooves for grasping the pair of lead wires and an auxiliary holding block provided with grooves corresponding to the two-lead wire grooves in such a manner that both end portions of each of the pair of lead wires protrude out of the lead-wire grooves, whereby the pair of lead wires is supported to be sandwiched and to be fixed therebetween;
• attaching an electrode to tip ends of the protruding lead wires;
• inserting the lead wires that hold the electrode by grasping the same and protrude out of the holding block into an end portion of a glass tube for a fluorescent lamp, an inner surface of the glass tube being coated with a phosphor;
• applying heat in the vicinity of the end portion of the glass tube so as to pinch-seal the lead wires to the glass tube;
• and
• detaching the holding block and the auxiliary holding block,
• wherein the holding block and the auxiliary holding block grasp an exhaust tube, and the exhaust tube is integrated with the glass tube during the step of anplying heat.