Title:
APPARATUS FOR PRODUCING A WINDOW FRAME AND A BENT METAL PRODUCT
Document Type and Number:
WIPO Patent Application WO/2010/038960
Kind Code:
A2
Abstract:
The present invention relates to an apparatus for producing a window frame and a bent metal product, wherein a set of forming rolls for forming the window frame and the bent metal product are constituted by upper and lower surface support rollers, left and right side surface support rollers, and forming rollers. The upper and lower surface support rollers and the left and right side surface support rollers apply uniform physical force to a panel to prevent reaction caused by the forming rolls, and thus the panel is bent while basically being prevented from being corrugated while passing through the set of forming rolls. The apparatus comprises: upper and lower support rollers arranged on upper and lower surfaces of a panel such that the upper and lower support rollers tightly contact the panel to support the upper and lower surfaces of the panel; left and right side surface support rollers arranged on left and right side surfaces of the panel such that the left and right side surface support rollers tightly contact the panel to support the left and right side surfaces of the panel; and cylindrical foldable forming rollers arranged on the upper and lower surfaces or side surfaces of the panel, and bent at a predetermined angle, such that the forming rollers tightly contact the panel to bend the panel under uniform pressure. The apparatus of the present invention is provided with cylindrical foldable forming rollers which tightly contact the panel and bend the panel under uniform pressure, thus basically preventing the panel from being corrugated during forming.
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Inventors:
KIM DONG SUN (KR)
Application Number:
PCT/KR2009/005522
Publication Date:
April 08, 2010
Filing Date:
September 28, 2009
Export Citation:
Assignee:
KIM DONG SUN (KR)
International Classes:
B21D5/14
Foreign References:
| KR100791647B1 | 2008-01-03 | |||
| JPH03138022A | 1991-06-12 | |||
| KR20040099996A | 2004-12-02 | |||
| US6289708B1 | 2001-09-18 |
Attorney, Agent or Firm:
YANG, Gun Sik (1554-10 Seocho-dong,Seocho-gu, Seoul 137-874, KR)
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