| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a synthetic resin cap configured to eliminate shape constraint generated from relation with mold equipment without complicating the mold equipment, especially, shape restriction of a top face part corresponding to a lid part. <P>SOLUTION: The synthetic resin cap 1a includes: a connection piece 4 connected to a cap body 2 through a first hinge 3 and provided to cover the top face part 6 of the cap body 2; a locking protrusion 14 locking the connection piece 4 in a position for covering the top face part 6 of the cap body 2; and a lid body 20 connected to the connection piece 4 through a second hinge 19, covering discharge holes 16 formed in the top face part 6 of the cap body 2. The cap 1a is molded without using a horizontally moving horizontal slide mold during molding, thereby significantly reducing the constraint on a product shape. <P>COPYRIGHT: (C)2012,JPO&INPIT |
