| 摘要 |
PURPOSE: To erect a pawl fitting boss coaxially with a barrel section on the face of a flange section on the opposite side to the barrel section, provide a bayonet pawl on the outer diameter of the pawl fitting boss, form a hexagon screw head section on at least part of the outer diameter of the barrel section of a board fitting bulb, and form a printed board on one face. CONSTITUTION: A nearly cylindrical pawl fitting boss 8 is provided on the face of the flange section 5 of a board fitting bulb 1 on the opposite side to a barrel section 4, and the boss 8 is formed into a nearly cylindrical shape coaxial with the barrel section 4. A bayonet pawl 6 is provided on the outer diameter of the boss 8. The lower face 5c of the flange section 5 is kept in contact with a printed board 10 on the side of the pawl fitting boss 8. The screw head section of a hexagon bolt or a hexagon screw head section 9 having the same shape as the outer diameter of a hexagon nut is provided on the outer diameter side of the barrel section 4. The head section 9 has the size to be coupled with a tool used for fitting or removing the bulb 1 to or from the printed board 10, and the printed board 10 is provided on one face. |
