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Cover or deck structure for marine vessel

A technology for covers and ships, applied in the direction of hull deck, ship construction, ship hatches/hatches, etc., can solve the problems of increased buckling strength improvement, increased manufacturing costs, increased welding hours, etc., to achieve buckling strength Improvement, simplification of welding work, and the effect of increasing the arrangement pitch

Inactive Publication Date: 2003-07-09
萱场·马库故莱高株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the box hatch cover of this structure, when the mutual spacing of the floor anti-flex members 6a, 6b on the bottom plate 2 is too large, it will affect the improvement of the buckling strength of the bottom plate 2, but if the mutual spacing is too small , compared with the increase of the base plate anti-flex members 6a, 6b, the degree of improvement of the buckling strength of the base plate 2 does not increase proportionally, which not only causes material waste but also increases the welding man-hours, thereby increasing the manufacturing cost

Method used

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  • Cover or deck structure for marine vessel
  • Cover or deck structure for marine vessel
  • Cover or deck structure for marine vessel

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Embodiment Construction

[0016] Hereinafter, an embodiment in which the present invention is applied to a hatch cover will be described with reference to the drawings.

[0017] In Fig. 1, 1 is a hatch opening, and a hatch cover 3 for opening and closing the opening 1 is provided on the peripheral edge 2 thereof. The hatch cover 3 is composed of, for example, a pair of covers, and side rolling types and pontoon types are known.

[0018] On the top plate 4 of the hatch cover 3, beams 5 having a U-shaped or V-shaped cross section are fastened parallel to each other at predetermined intervals by welding on the inner side thereof.

[0019] The U-shaped or V-shaped beam 5 is in a state where the opening surface 5a is in close contact with the top plate 4, and both legs 5b are respectively fixed by corner welding from the outside.

[0020] U-shaped or V-shaped beams 5, when welded on the inside of the top plate 4, form a box-shaped structure with the top plate 4, these are in order to improve the buckling s...

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Abstract

A cover or deck structure for marine vessels. Beams (5) having a U-shaped or V-shaped cross section are welded and fixed to a back surface of a top plate (4) at predetermined intervals with opened surfaces thereof in close contact with the top plate (4). The cover or deck is enhanced in rigidity, reduced in welding distortion and improved in its workability.

Description

technical field [0001] This invention relates to the improvement of the cover or deck structure of a ship. Background technique [0002] Conventionally, in order to ensure the rigidity of the top plate such as a hatch cover, in addition to the main frame, materials such as angle steel materials for reinforcement, large steel plates, flat steel, etc. were fixed by welding at predetermined intervals on the inner side of the top plate. [0003] On the top plate of the hatch cover, deflection will occur due to the impact of the seawater above it and the weight of the loaded container. Compression parallel to the roof surface, therefore, the roof will be partially bent by the main bone. This situation is the same as that of loading vehicles on the deck of a ship. [0004] In order to maintain a predetermined bending strength on the top plate, it is necessary to minimize the intervals (pitches) of these reinforcing materials, and this requires a lot of welding man-hours, which a...

Claims

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Application Information

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IPC IPC(8): B63B3/48B63B19/14
CPCB63B3/48B63B19/14B63B2003/265
Inventor 平田胜藤木昌纪石锅秀一山中广
Owner 萱场·马库故莱高株式会社
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