JPH0537920Y2

JPH0537920Y2 -

Info

Publication number: JPH0537920Y2
Application number: JP1611886U
Authority: JP
Priority date: 1986-02-06
Filing date: 1986-02-06
Publication date: 1993-09-24
Anticipated expiration: 2001-02-06
Also published as: JPS62127895U

Description

【考案の詳細な説明】技術の分野：石炭運搬船、セメント運搬船等は甲
板上に荷役用のブームをもつが本考案はそのブー
ムの支持構造に関する。[Detailed description of the invention] Technical field: Coal carriers, cement carriers, etc. have booms for cargo handling on their decks, and the present invention relates to a support structure for the booms.

技術の現状、その問題点：第２図は従来のブーム
支持構造を側面図で概念的に示し、１は船体、２
は船橋で石炭運搬船、セメント運搬船等の場合概
ね船尾側に設けられる。３は荷役ブーム、４は同
ブームの直立支持ポストで何れも船橋２の前側に
近くの甲板の船首尾線上に設けられる。５はブー
ム３とポスト４とを結び、またブーム３の傾斜角
を調整するためのロープである。このような構成
では直立ポストは操船時船橋よりの見通しの妨げ
となり、またその荷重は曲げ応力となるので構造
を頑丈にせねばならず、従つて重量も大となる問
題点がある。Current state of the technology and its problems: Figure 2 conceptually shows a conventional boom support structure in a side view, where 1 is the hull, 2
In the case of coal carriers, cement carriers, etc., it is generally installed on the stern side of the bridge of the ship. 3 is a cargo handling boom, and 4 is an upright support post for the boom, both of which are installed on the bow and stern line of the deck near the front of the bridge 2. A rope 5 connects the boom 3 and the post 4 and is used to adjust the inclination angle of the boom 3. In this configuration, the upright post obstructs the view from the bridge when maneuvering the ship, and the load results in bending stress, so the structure must be strong, which results in a problem of increased weight.

問題点の改善手段：それで本考案ではつぎのよう
にしてこれらの問題点を解決することゝした。す
なわちブーム３に対する支持は第１図に示すよう
に船橋２上部船首尾線上に船首方向にのびる腕１
０を設け、これにブーム３を結ぶ。船橋２は概ね
これらによる荷重に充分耐えうる強度をもつもの
である。このようにすれば腕１０のうける荷重は
大部分引張り力となり、曲げ荷重をうける従来の
直立ポストよりは軽い構造となしうる。Measures to improve the problems: Therefore, in the present invention, these problems were solved as follows. In other words, the boom 3 is supported by an arm 1 extending toward the bow on the bow and stern line above the bridge 2, as shown in Figure 1.
0 and connect the boom 3 to it. The bridge 2 generally has enough strength to withstand these loads. In this way, the load on the arm 10 is mostly tensile, resulting in a lighter structure than a conventional upright post that is subject to bending loads.

効果：従来の直立ポスト４がなくなつたことで
船橋よりの船首方向の見通しはよくなり、また荷
役設備が軽量化される。Effects: Eliminating the conventional upright post 4 improves visibility from the bridge toward the bow, and also reduces the weight of cargo handling equipment.

[Brief explanation of the drawing]

第１図は本考案の、第２図は従来例の荷役ブー
ム支持構造の概念的側面図。１……船体、２……船橋、３……荷役ブーム、
４……従来例のブーム直立支持ポスト、５……ブ
ーム、ポスト間のロープ、１０……本考案におけ
るブーム支持腕。 FIG. 1 is a conceptual side view of a cargo handling boom support structure according to the present invention, and FIG. 2 is a conventional example of a cargo handling boom support structure. 1...hull, 2...bridge, 3...cargo handling boom,
4... Boom upright support post of conventional example, 5... Rope between boom and post, 10... Boom support arm in the present invention.

Claims

[Scope of utility model registration request]

A cargo handling boom support structure for a coal carrier, etc., in which a boom placed on the bow and stern line of the deck near the front of the bridge on the stern side is supported by arms extending toward the bow on the bow and stern line on the upper part of the bridge.