IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0337520
(2003-01-07)
|
발명자
/ 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
10 인용 특허 :
20 |
초록
▼
A box beam is provided that may be fabricated to any desired size, having a box-like structure defined by a seam defined by spaced apart first and second allowance ends or other connection means configuration, first and second top portions, first and second side portions, and a bottom portion, the b
A box beam is provided that may be fabricated to any desired size, having a box-like structure defined by a seam defined by spaced apart first and second allowance ends or other connection means configuration, first and second top portions, first and second side portions, and a bottom portion, the bottom portion having a raised ridge formed midway about its width and running substantially along the length of the box beam. A method is also provided for fabricating the various embodiments of the box beam described from sheet metal, namely, forming the ridge, turning up the allowance ends at about right angles to the sheet, turning up the top portions likewise, then turning up the side portions likewise.
대표청구항
▼
1. A box beam comprising: first and second allowance ends, first and second top portions that are substantially coplanar and spaced apart by a seam, first and second side portions, and a bottom portion; said first allowance end and said first side portion each depending from opposite edges of said f
1. A box beam comprising: first and second allowance ends, first and second top portions that are substantially coplanar and spaced apart by a seam, first and second side portions, and a bottom portion; said first allowance end and said first side portion each depending from opposite edges of said first top portion in a substantially common direction at about a right angle to said first top portion; said second allowance end and said second side portion each depending from opposite edges of said second top portion in a substantially common direction at about a right angle to said second top portion; said first side portion extending between said first top portion and said bottom portion and being connected at about a right angle to one end of said bottom portion; said second side portion extending between said second top portion and said bottom portion and being connected at about a right angle to an opposite end of said bottom portion; said bottom portion being generally parallel with said first and second top portions; said bottom portion having a ridge formed therein and raised from said bottom portion generally toward said first and second top portions; wherein said first and second allowance ends are generally parallel and depend in substantially the same direction from said first and second top portions, respectively. 2. The box beam of claim 1 wherein said first and second allowance ends are spaced apart from about 0 inches to about ½ inch. 3. The box beam of claim 1 wherein said box beam is manufactured of sheet metal having desired thickness. 4. The box beam of claim 3 wherein said sheet metal has a gauge thickness from about 10-gauge to about 20-gauge. 5. The box beam of claim 3 wherein said sheet metal comprises cold rolled steel. 6. The box beam of claim 5 wherein said steel is galvanized. 7. The box beam of claim 3 wherein said right angles are formed by a break press that bends one portion respective to an adjacent portion, each bend so formed having an internal radius about 1½ times said thickness of said sheet metal. 8. The box beam of claim 1 wherein said first and second allowance ends and said ridge extend within said box beam substantially along the length of said box beam. 9. The box beam of claim 1 having a width from about 2 inches to about 6 inches. 10. The box beam of claim 1 having a height from about 6 inches to about 16 inches. 11. The box beam of claim 1 wherein said first and second allowance ends depend from said first and second top portions, respectively, a distance from about ¼ inch to about 1 inch. 12. The box beam of claim 1 further comprising a U-shaped track secured to said box beam generally at said first and second top portions and covering said seam. 13. The box beam of claim 12 further comprising a second U-shaped track secured to said box beam generally at said bottom portion and covering said ridge. 14. The box beam of claim 1 further comprising a U-shaped track secured to said box beam generally at said bottom portion and covering said ridge. 15. The box beam of claim 1 further comprising at least one structural element selected from the group consisting of notches, tail cuts, seat cuts and angled butt joints, is incorporated into an end of said box beam or into a medial portion thereof along its longitudinal length. 16. The box beam of claim 1 wherein said ridge comprises a first side and a second side, and an angle between said first and second sides between about 0 degrees and about 85 degrees. 17. The box beam of claim 1 wherein said ridge comprises a first side and a second side each raised from said bottom portion at about right angles thereto and extending to a ridge top connecting said first and second sides at about right angles to each, respectively, said ridge having a width in the plane of said bottom portion up to about 1 inch. 18. A method for fabricating a box beam from sheet metal comprising the steps of: cutting said sheet metal to desired size; forming a ridge along the length of said sheet metal generally midway about the width thereof, said ridge being raised from said sheet metal a distance from about ¼ inch to about 1 inch; turning up opposite ends of said sheet metal at about right angles thereto along the length thereof generally equidistantly, said opposite ends being turned up not more than about 1 inch; turning up first and second top portions adjacent said opposite ends, respectively, at about right angles to said sheet metal, said first and second top portions each being turned up a distance equal to or less than about ½ the width desired for said box beam; turning up first and second side portions adjacent said first and second top portions, respectively, at about right angles to said sheet metal, said first and second side portions being spaced apart along said sheet metal about the width desired for said box beam. 19. The method of claim 18 further comprising the step of cutting at least one of notches, tail cuts, seat cuts, and angled butt joints into said sheet metal. 20. The method of claim 18 wherein said ridge forming step is performed by clamping said sheet metal between a male die positioned on one side of said sheet metal and a female die positioned on an opposite side of said sheet metal. 21. The method of claim 18 wherein said turning up steps are each performed by using a conventional break or roll press generally powered by one of electrical, hydraulic and pneumatic means. 22. The method of claim 18 further comprising steps for fabricating at least one U-shaped track for securing to said box beam, said steps including: selecting a second piece of sheet metal having a length generally the same as the length of said box beam and a width no greater than approximately the desired width for said box beam plus the height of one of said first and second side portions; turning up first and second depending side portions at about right angles to said second piece along the length thereof generally equidistantly, said first and second depending side portions being spaced apart along said second piece approximately the width of said box beam. 23. A box beam comprising: first and second top portions that are substantially coplanar and that have a first inner edge and outer edge and a second inner edge and outer edge respectively, connection means for securing said first and second top portions at said first and second inner edges, said connection means defining a seam therebetween, first and second side portions each being substantially planar along their respective lengths, and a bottom portion; said first side portion depending from said first outer edge at about a right angle to said first top portion; said second side portion depending from said second outer edge at about a right angle to said second top portion; said first side portion extending between said first top portion and said bottom portion and being connected at about a right angle to one end of said bottom portion; said second side portion extending between said second top portion and said bottom portion and being connected at about a right angle to an opposite end of said bottom portion; said bottom portion being generally parallel with first and second top portions; said bottom portion having a ridge formed therein and raised from said bottom portion generally toward said first and second top portions. 24. The box beam of claim 23 wherein said connection means comprises said first and second inner edges being abutted to define said seam, and a welding connection applied substantially along the length of said seam. 25. The box beam of claim 23 wherein said connection means comprises an overlap joint defining said seam, wherein said second top portion comprises a recessed lip extending from said second inner edge, said lip being configured to receive said first inner edge. 26. The box beam of claim 25 comprising a welding connection applied substantially along the length of said overlap joint. 27. The box beam of claim 25 wherein said lip extends from said second top portion at least ½ inch. 28. The box beam of claim 23 wherein said connection means comprises an interlocking tongue and groove joint defining said earn. 29. The box beam of claim 28 wherein said interlocking tongue and groove joint comprises a male tongue and groove end extending from said first top portion at said first inner edge, and a female tongue and groove end extending from said second top portion at said second inner edge. 30. The box beam of claim 29 wherein said male tongue and groove end comprises a first hairpin lip extending downwardly and backwardly beneath said first top portion, said first hairpin lip and said first top portion defining a first groove, said female tongue and groove end comprising a recessed lip extending from said second top portion to a second hairpin lip extending upwardly and backwardly above said recessed lip to define a second groove, said first groove configured to receive said second hairpin lip, said second groove configured to receive said first hairpin lip. 31. The box beam of claim 30 wherein said first and second hairpin lips respectively extend at least about ½ inch.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.