| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an apparatus for denting a bottom part of a synthetic resin bottle which apparatus prevents the unnecessary deformation of the bottom part of the bottle from occurring when a reversed portion on the bottom part of the bottle is punched to be dented in reverse, to dent the reversed portion without fail, and has a simple configuration. <P>SOLUTION: A supporting table 2 for supporting the bottom part 13 of the bottle 3 is provided with a supporting hole part 31 in which the bottom part 13 of the bottle 3 is inserted freely, an annular bearing member 29 which bears the bottle 3 inserted in the supporting hole part 31, and an energizing member 32 which applies upward energy to the bearing member 29. A pressing member 25 is provided, which presses the bottle 3 toward the supporting table 2 to depress the bearing member 29 and causes the bottom part 13 of the bottle 3 to enter the supporting hole part 31 to keep the bottle 3 from moving up. A push-up punch 38 is provided, which pushes up the reversed portion 17 projecting downward on the bottom part 13 of the bottle 3 kept pressed by the press member 25, to dent the reversed portion 17 in reverse. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
