| 摘要 |
PURPOSE:To make an external appearance favorable and seal reliably, by a method wherein hardness of a cap should be Shore A hardness 50-90, the inside of a hole of the cap is fitted in an opening part provided in a protrusion and the outside of the cap is fitted in the inside of a recessed part for holding of the cap of a top force. CONSTITUTION:When a cap 44 is inserted strongly into a recessed part 42 for holding of the cap 44 of a top force, the cap 44 is comprised of hardness of Shore A 50-90, the outside is deformed inward by being pressed strongly by a protrusion 48 and inserted into the recessed part 42 for holding the cap 44. When the cap 44 is inserted until the protrusion 48 and a recessed part 46 of the outside of the cap 44 are coincident with each other, the protrusion 48 is fitted in the recessed part 46 and the cap 44 is fixed reliably to the recessed part 42 for the holding of the cap of the top force. Then a protrusion-like fitting part 54 of fitting parts 54 is pushed into a hold 50 of the cap 44. When an opening part 58 of the fitting part 54 and a protrusion 56 of the inside of the hole 50 are coincident with each other, the fitting part 54 is fixed reliably under a sealed state within the cap 44 fixed to the top force. Then resin stock are cast into a cavity 40 between a mold surface 36 of the top force and a mold surface 38 of a bottom force and a resin molding where the resin and a base part of the fitting parts are integrated with each other is obtained. |
