Title:
保持ユニット、該保持ユニットを備える成形金型の突き出し機構
Document Type and Number:
Japanese Patent JP6889942
Kind Code:
B2
Abstract:
Provided is a retaining unit that can be easily assembled with a die and has high versatility. Further, provided are a retaining unit that can be compactly assembled with a die, an ejection mechanism of a molding die assembly including the retaining unit, a fixed-side die, a movable-side die, a molding die assembly, and a molded article. The retaining unit includes a movable ejector pin 10, a ring-shaped member 11 used while being fixed in an unmovable state, and a ball plunger 12 attached to the ring-shaped member 11, and configured to press the ejector pin 10 and engage the ejector pin 10 with the ring-shaped member 11, wherein, when a force at a predetermined level or higher is applied in the movement direction of the ejector pin 10, the engagement with the ring-shaped member 11 is released so that the ejector pin 10 is allowed to move, and the ball plunger 12 is assembled with the ring-shaped member 11 so as to be unitized together.
Inventors:
Masanori Antimoto
Application Number:
JP2019513519A
Publication Date:
June 18, 2021
Filing Date:
April 17, 2017
Export Citation:
Assignee:
Technocrats Co., Ltd.
International Classes:
B29C33/44; B22C9/06; B22D17/22; B22D17/24; B22D18/02; B22D18/04; B29C45/44
Domestic Patent References:
| JP2014097628A | ||||
| JP2002172641A | ||||
| JP62130817A | ||||
| JP58078735A | ||||
| JP63006823U |
Foreign References:
| WO2008143214A1 |
Attorney, Agent or Firm:
Hiroshi Keitokuin