| 摘要 |
PROBLEM TO BE SOLVED: To reduce bulb insertion force independent of the dispersion in thickness of a base part and sufficiently keep the contact pressure of a contact piece. SOLUTION: A plus terminal is mounted on in a right region within a base insertion hole and a minus terminal is mounted on in the left region. In the plus terminal 15B, a base plate 16 in which a contact piece 17 and a lock piece 18 are installed is inserted along a guide surface 42B. A blank surface 51 is recessed in the position outside the lock piece 18 on the guide surface 42B. When a thick base part is inserted, the bending amount to the outside of the lock piece is increased, a part where the lock piece 18 is installed out of the base plate 16 is retracted on the blank surface 51 side, and at the same time, the base part 3 is inserted, to suppress inserting resistance. With retraction of the base plate 16 to the lock piece 18 installation side, the base plate 16 on the contact piece installation side is projected inside, and the contact piece 17 comes in contact with a corresponding contact at high contact pressure.
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