Title:
VACUUM BAG AND METHOD FOR MANUFACTURING VACUUM BAG
Document Type and Number:
WIPO Patent Application WO/2020/178948
Kind Code:
A1
Abstract:
Provided is a vacuum bag which is lightweight, has excellent workability, and can be easily manufactured and reused. This vacuum bag 10 is composed of a diaphragm 11, a frame 12, and a seal 13. The frame 12 is composed of a fiber-reinforced plastic laminate structure 20. The fiber-reinforced plastic laminate structure 20 is covered with a non-silicon-based thermosetting synthetic rubber 26. The curing temperature region of the synthetic rubber 26 and the curing temperature region of the thermosetting resin of the laminate structure 20 overlap each other. Consequently, the synthetic rubber 26 and the laminate structure 20 are molded in one body. In the same step, the synthetic rubber 16 is adhered to the silicon-based diaphragm 11. That is, the vacuum bag 10 is easily manufactured by one-body molding. In particular, when a jig base 30 has a free surface, the effect of easy manufacture becomes remarkable.
Inventors:
UCHINO TOYOHISA (JP)
Application Number:
PCT/JP2019/008399
Publication Date:
September 10, 2020
Filing Date:
March 04, 2019
Export Citation:
Assignee:
NIPPI CORP (JP)
International Classes:
B29C43/10; B29C70/44; B29C43/32; B29C70/54
Foreign References:
| JP2013078937A | 2013-05-02 | |||
| JP2018111256A | 2018-07-19 | |||
| US4681651A | 1987-07-21 |
Attorney, Agent or Firm:
MAEJIMA Daigo et al. (JP)
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