IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0481828
(2009-06-10)
|
등록번호 |
US-8282068
(2012-10-09)
|
우선권정보 |
DE-10 2008 028 076 (2008-06-13) |
발명자
/ 주소 |
|
출원인 / 주소 |
- CLAAS Fertigungstechnik GmbH
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
7 |
초록
A tool, has a tool shell having a top side for shaping a fiber-reinforced component, and an underside, wherein said tool shell is dimensionally stable and is provided with an integrally moulded ribbed structure on said underside to provide a dimensional stability.
대표청구항
▼
1. A tool, comprising a tool shell formed of a plurality of separate segments and having a top side for shaping a fiber-reinforced component, an underside comprising an integrally molded ribbed structure including a plurality of reinforcing ribs and means for connecting said separate segments to one
1. A tool, comprising a tool shell formed of a plurality of separate segments and having a top side for shaping a fiber-reinforced component, an underside comprising an integrally molded ribbed structure including a plurality of reinforcing ribs and means for connecting said separate segments to one another,wherein said means for connecting includes screws extending through fastening edges of said segments on said underside and provides a form-fit connection and a weld seam joining the segments on said top side, in a vacuum-tight manner,wherein said tool shell is dimensionally stable and is provided with an integrally molded ribbed structure on said underside to provide a dimensional stability,wherein said reinforcing ribs are selected from the group consisting of ribs which have same coefficients of thermal expansion as does said tool shell, ribs which are composed of essentially a same material as said tool shell and both, andwherein said tool shell and said ribbed structure together form an element composed of a one-piece same material. 2. The tool as defined in claim 1, wherein said tool shell is formed as a cast tool shell machined on both sides. 3. The tool as defined in claim 2, wherein said tool shell is composed of a cast steel. 4. The tool as defined in claim 1, wherein said tool shell and said reinforcing ribs have a wall thickness which is essentially constant across said tool shell in its entirety. 5. The tool as defined in claim 1, wherein said tool shell has a wall thickness which is less than 30 mm. 6. The tool as defined in claim 5, wherein said wall thickness of said tool shell is between substantially 5 mm and 20 mm. 7. The tool as defined in claim 5, wherein said reinforcing ribs have a height which is between 8 mm and 100 mm. 8. The tool as defined in claim 1, wherein said reinforcing ribs have a structure selected from the group consisting of a structure having a rectangular shape, a structure having a rounded shape, a structure having three corners, a structure having more than three corners, and a structure having a honeycomb design. 9. The tool as defined in claim 1, wherein said tool shell is composed of at least one segment. 10. The tool as defined in claim 1, wherein said top side has an edge region provided with a receiving groove which is configured to receive a channel selected from the group consisting of a resin channel, a vacuum channel, and both. 11. A method for manufacturing a tool, comprising the steps of manufacturing a tool shell having a top side for shaping a fiber-reinforced component and having an underside;forming an integrally molded ribbed structure on the underside of the tool shell to make the tool shell dimensionally stable and so that the tool shell and the ribbed structure together form an element composed of a one-piece same material;making said tool shell with said integrally molded ribbed structure of a plurality of separate segments; andconnecting said separate segments of said tool shell with said integrally molded ribbed structure, to one another in an air-tight manner, by extending screws through fastening edges of said segments and thereby providing a form-fit connection and making a weld seam between said segments on said top side and thereby providing a vacuum-tight connection. 12. The method as defined in claim 11, wherein said forming the ribbed structure includes machining the top side and the underside of the tool shell after the casting process. 13. A tool, comprising a tool shell having a top side for shaping a fiber-reinforced component, an underside comprising an integrally molded ribbed structure, a plurality of separate segments that are connected to one another and means for connecting said separate segments with one another including screws extending through fastening edges of said segments on said underside and providing a form-fit connection and a weld seam joining said segments on said top side and providing a vacuum-tight connection therebetween,wherein said tool shell is dimensionally stable,wherein said ribbed structure includes a plurality of reinforcing ribs formed as ribs selected from the group consisting of ribs which have same coefficients of thermal expansion as does said tool shell, ribs which are composed of essentially a same material as said tool shell and both, said integrally molded ribbed structure providing said dimensional stability, andwherein said tool shell and said ribbed structure together form an element composed of a one-piece same material. 14. The tool as defined in claim 13, wherein said separate segments are connected to one another in a vacuum-tight manner. 15. The tool as defined in claim 13, wherein said segments are welded to one another on said top side. 16. The tool as defined in claim 13, wherein said segments are connected to one another in a form-fit manner on said underside. 17. A method for a manufacturing tool, comprising the steps of manufacturing a tool shell, having a top side for shaping a fiber-reinforced component and having an underside;forming an integrally molded ribbed structure on the underside of the tool shell to make the tool shell dimensionally stable;configuring the ribbed structure as a single piece with the tool shell, so that the tool shell and the ribbed structure together form an element composed of a one-piece same material;making said tool shell with said integrally molded ribbed structure of a plurality of separate segments; andconnecting said separate segments of said shell with said integrally molded ribbed structure, to one another in an air-tight manner, by extending screws through fastening edges of said segments and thereby providing a form-fit connection and making a weld seam between said segments on said to side and thereby providing a vacuum-tight connection.
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