Rolling bending method and rolling bending apparatus
US-2018281035-A1 · Oct 4, 2018 · US
Roll forming method and shaped beam produced by using the same
US8991230B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8991230-B2 |
| Application number | US-201113325454-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 14, 2011 |
| Priority date | Nov 29, 2011 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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A roll forming method including a roll forming step performed by a plurality of roll formers and a bending step performed by a round bender provided with a plurality of bending roll units is disclosed. After a concave surface is formed at a surface of a shaped beam sequentially bent so as to have a closed section at the roll forming step, the concave surface is disposed so as to face toward an inward of a curvature of the shaped beam in the round bender and the shaped beam is formed to have the curvature through multiple steps at the bending step.
First claim
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What is claimed is: 1. A roll forming method comprising: receiving a panel at a plurality of roll formers; sequentially forming, via the plurality of roll formers comprising forming portions, the panel into a shaped beam having at least one closed section by forming a concave surface having a first depth, as formed without breakage, at a surface of a shaped beam; forming a slanted surface having a slanted angle connected to the concave surface; forming the concave surface t…
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- What does patent US8991230B2 cover?
- A roll forming method including a roll forming step performed by a plurality of roll formers and a bending step performed by a round bender provided with a plurality of bending roll units is disclosed. After a concave surface is formed at a surface of a shaped beam sequentially bent so as to have a closed section at the roll forming step, the concave surface is disposed so as to face towa…
- Who is the assignee on this patent?
- Jeong Kwang-Wook, Son Bong Kun, Sungwoo Hitech Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B21D5/14. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).