WO1998016420A1 - Hatch cover panel for cargo ship - Google Patents
Hatch cover panel for cargo ship Download PDFInfo
- Publication number
- WO1998016420A1 WO1998016420A1 PCT/FI1996/000539 FI9600539W WO9816420A1 WO 1998016420 A1 WO1998016420 A1 WO 1998016420A1 FI 9600539 W FI9600539 W FI 9600539W WO 9816420 A1 WO9816420 A1 WO 9816420A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- panel
- hatch cover
- longitudinal
- transverse
- unsupported
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
- B63B19/12—Hatches; Hatchways
- B63B19/14—Hatch covers
Definitions
- the present invention relates to a hatch cover panel suitable for supporting containers stowed on the deck of a cargo ship, advantageously a side panel of the hatch cover, said panel having an essentially rectangular shape, and when fitted in place, being supported by at least two of its sides to the edges of the hatchway opening, whereby at least one side of the panel remains unsupported, and said panel having to its lower surface attached at least one longitudinal beam aligned parallel with the unsupported side of the hatch cover panel, said longitudinal beam being advantageously located at said unsupported panel side or close thereto.
- the invention relates to a main steel structure of one panel of a cargo ship hatch cover, meaning that top plate buckling stiffeners and other such structures of a hatch cover panel are excluded from to the scope of the invention.
- load-carrying hatch covers are comprised of two or three parallel panels aligned transverse to the longitudinal axis of the ship, with the exception of the foredeck hatch cover that usually is of a single panel construction. If a hatch cover is comprised of two panels, both panels are side panels. In a multi-panel hatch cover such as a three-panel cover, the panels closer to the sides of the ship are side panels and the panel or panels forming the mid-cover is/are center panels.
- the present invention is particularly related to the hatch cover side panels, which in detail, when fitted in place, are supported by three sides to the edges of the hatchway opening, whereby one of the panel sides is parallel to the longitudinal axis of the ship and two sides of the panel are transverse thereto.
- the hatch cover center panel can be implemented in a conventional manner.
- the structure disclosed herein has advantageous dimensions when the panels are designed to allow end-to-end loading of two containers or tiers of containers lengthwise on a single panel (this is very general situation meaning that onto said hatch cover panel may be placed one 40- or 45-feet container, or alternatively, two 20-feet containers are fitted tightly end-to-end over the length of the panel) .
- the panel according to the invention is characterized in that to said panel is attached at least one transverse beam, aligned perpendicular to the longitudinal support beam of the panel, said transverse beam having a length extending from said longitudinal beam toward the other side of the hatch cover panel at least over the width of two adjacent contai- ners, whereby an essentially T-shaped beam structure is formed.
- Such a beam construction has a plurality of benefits over a conventional design, namely: the span of the transverse beam remains shorter than the length of the longitudinal support beams in a conventional design and/or a single transverse support beam can replace a number of the longitudinal support beams of a conventional design. Resul- tingly, the weight of the steel structure will be reduced, the area of structures to be surface treated will become smaller and the amount of welding will be decreased.
- the invention is examined in greater detail with the help of a preferred exemplifying embodiment by making reference to the appended drawings, in which:
- Figure 1 is an oblique perspective view of a conventional hatch cover side panel with containers loaded thereon as seen from below;
- Figure 2 is also an oblique perspective view of a hatch cover side panel according to the invention with containers loaded thereon as seen from below;
- Figure 3 is a top view of a portion of ship deck and particularly a part of the hatchway opening with the hatch cover side panel according to the invention placed thereon.
- the hatch cover side panel 1 is supported by the edges of the hatchway opening at its three sides (cf. Fig. 3), whereby one side remains unsupported. Due to the substantial loading caused by the containers placed thereon, the hatch cover panels must be stiffened with adequate support structures. In a conventional side panel (Fig. 1), this support is arranged so that to the side unsupported by the hatchway opening is attached a beam
- the longitudinal beam (later in the text called the longitudinal beam) running in parallel with the length of the containers. Additional- ly, a number of other parallel beams are attached at equal spacings aligned to run at the edges of the overlying containers. In the arrangement shown in Fig. 1 having four multi-tier stacks of containers placed side-by-side, the number of longitudinal beams 2 is four.
- Fig. 2 shows a hatch cover side panel 1 according to the invention comprising again in the above-described manner a longitudinal support beam 2 at its side unsupported by the hatchway opening. Perpendicular to this longitudinal beam is arranged a transverse beam 4 having a length extending from said longitudinal beam toward the other side of the hatch cover side panel at least over the width of two adjacent containers. The transverse beam 4 is aligned to run essentially along those edges of the containers 3 loaded onto the side panel 1 that remain at the center of the side panel .
- the T-shaped support beam structure 2, 4 of the hatch cover panel 1 can be implemented in a plurality of different manners.
- the transverse beam 4 of the T-shaped support beam structure can be extended up to edge of the side panel 1, or alternatively, terminated at a longitudinal beam of a conventional support beam construction, whereby a desired number of longitudinal beams can be used.
- a greater number than one T-shaped support structures (comprising a longitudinal and a transverse beam) of the hatch cover panel can be used.
- the cross sections of the longitudinal beam 2 and the transverse beam 4 of the T-shaped beam structure can be made open resembling an I-beam or an L-beam, or alternatively, they can be made into a box section.
- the length of the transverse beam 4 is from 2 to 5 times the width of the container 3.
- the location of the hatch cover side panel 1 according to the invention is elucidated placed on the edge, or side coaming, 6 of the hatchway opening 5 made on the deck 8 of the ship.
- the longitudinal and transverse beams attached to the underside of the panel 1 are indicated by dashed lines.
- the foundation pieces 7 for the location of containers 3 (not shown in Fig. 3) are attached in a conventional manner on the upper surface of the panel.
- Fig. 3 only a portion of the hatchway opening 5 (cargo space opening) and only one hatch cover side panel 1 is shown.
- the hatchway opening 5 is conventionally closed by a hatch cover comprising two side panels and possibly one center panel.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Ship Loading And Unloading (AREA)
- Wrappers (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL96332649A PL182183B1 (en) | 1996-10-11 | 1996-10-11 | Cargo hatch cover |
AU72186/96A AU7218696A (en) | 1996-10-11 | 1996-10-11 | Hatch cover panel for cargo ship |
JP10518045A JP2001501888A (en) | 1996-10-11 | 1996-10-11 | Hatch cover panel for cargo ship |
PCT/FI1996/000539 WO1998016420A1 (en) | 1996-10-11 | 1996-10-11 | Hatch cover panel for cargo ship |
KR1019990703039A KR20000048986A (en) | 1996-10-11 | 1996-10-11 | Hatch cover panel for cargo ship |
DE19681767T DE19681767T1 (en) | 1996-10-11 | 1996-10-11 | Hatch cover plate for cargo ships |
DK199900472A DK173294B1 (en) | 1996-10-11 | 1999-04-09 | Cover hatch for a cargo ship |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/FI1996/000539 WO1998016420A1 (en) | 1996-10-11 | 1996-10-11 | Hatch cover panel for cargo ship |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998016420A1 true WO1998016420A1 (en) | 1998-04-23 |
Family
ID=8556661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FI1996/000539 WO1998016420A1 (en) | 1996-10-11 | 1996-10-11 | Hatch cover panel for cargo ship |
Country Status (6)
Country | Link |
---|---|
JP (1) | JP2001501888A (en) |
KR (1) | KR20000048986A (en) |
AU (1) | AU7218696A (en) |
DE (1) | DE19681767T1 (en) |
DK (1) | DK173294B1 (en) |
WO (1) | WO1998016420A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112478080A (en) * | 2020-12-09 | 2021-03-12 | 江南造船(集团)有限责任公司 | Digital positioning method for hoisting container ship hatch cover |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200470190Y1 (en) * | 2011-06-28 | 2013-12-06 | 삼성중공업 주식회사 | Marine structure |
CN105564594B (en) * | 2016-03-22 | 2017-12-12 | 江龙船艇科技股份有限公司 | Ships and light boats with 7 font hatchcovers |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE652743C (en) * | 1936-06-16 | 1937-11-06 | Luebecker Maschb Ges | Steel hatch cover for large hatches, especially for self-trimmers |
DE1756863A1 (en) * | 1967-07-24 | 1970-08-27 | Mcmullen John J | Hatch cover for container ships |
-
1996
- 1996-10-11 WO PCT/FI1996/000539 patent/WO1998016420A1/en not_active Application Discontinuation
- 1996-10-11 KR KR1019990703039A patent/KR20000048986A/en not_active Application Discontinuation
- 1996-10-11 AU AU72186/96A patent/AU7218696A/en not_active Abandoned
- 1996-10-11 JP JP10518045A patent/JP2001501888A/en active Pending
- 1996-10-11 DE DE19681767T patent/DE19681767T1/en not_active Withdrawn
-
1999
- 1999-04-09 DK DK199900472A patent/DK173294B1/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE652743C (en) * | 1936-06-16 | 1937-11-06 | Luebecker Maschb Ges | Steel hatch cover for large hatches, especially for self-trimmers |
DE1756863A1 (en) * | 1967-07-24 | 1970-08-27 | Mcmullen John J | Hatch cover for container ships |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112478080A (en) * | 2020-12-09 | 2021-03-12 | 江南造船(集团)有限责任公司 | Digital positioning method for hoisting container ship hatch cover |
Also Published As
Publication number | Publication date |
---|---|
DK173294B1 (en) | 2000-06-13 |
DE19681767T1 (en) | 1999-09-02 |
DK199900472A (en) | 1999-04-09 |
JP2001501888A (en) | 2001-02-13 |
AU7218696A (en) | 1998-05-11 |
KR20000048986A (en) | 2000-07-25 |
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