| 摘要 |
PURPOSE:To execute exactly an assembly, and to enhance a yield of a product by fixing the tip of a supporting part of a temporary fitting jig to a frame, installing a diaphragm part to a coil bobbin, and thereafter, removing the supporting part of the temporary fitting jig. CONSTITUTION:A voice coil inserting jig 6 is fitted onto a center pole of a magnetic circuit, onto which a coil bobbin is fitted. Subsequently, a damper 7 is inserted and fitted to this coil bobbin, the circumference of a round hole part of the damper 7 is stuck to the outside part of the coil bobbin by an adhesive and also a fixing plate part 7a is stuck and fixed to a supporting circular base part 8 of a frame. Next, a ring part 10 of a temporary fitting jig 9 is fit-inserted and stuck to the upper part of the coil bobbin, and also a supporting part 11 is stuck to a supporting base part 15 of a support 14 provided projectingly from the supporting circular base part 8. Subsequently, a diaphragm part 16 is installed by sticking its coupler to the coil bobbin and attaching its edge to the frame, and thereafter, the supporting part 11 is removed by breaking off the temporary fitting jig 9 from the part of narrow grooves 12, 13. |
