Die, manufacturing method therefor, and molded body manufacturing method
US11267187B2 · kind B2 · utility
0Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2017 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Nov 4, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2007/002
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A mold which can improve an appearance of a molded body is provided. A mold includes a cavity, the mold being capable of subjecting a resin sheet under reduced pressure suction via a plurality of reduced pressure suction holes thereby shaping the resin sheet to follow a shape of an inner surface of the cavity; wherein: the inner surface includes a base surface and a plurality of island-like concave portions provided in the base surface; and a concave portion reduced pressure suction hole index defined by an in-concave reduced pressure suction hole ratio divided by a concave portion area ratio is 0.5 or lower.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.