JPS6172490U

JPS6172490U -

Info

Publication number: JPS6172490U
Application number: JP1984157590U
Authority: JP
Priority date: 1984-10-18
Filing date: 1984-10-18
Publication date: 1986-05-16

Description

[Brief explanation of drawings]

第１〜３図は本考案の一実施例としての格納式
船首フイン装置を示すもので、第１図はその全体
の構成を模式的に示す平面図、第２図はその要部
を拡大して示す水平断面図、第３図は第２図の
−矢視断面図であり、第４図は船首バルブを設
けた一般の船舶を示す船首側面図であり、第５〜
８図は従来の船首フイン装置を示すもので、第５
図は同装置をそなえた船舶の船首側面図、第６図
は第５図の−矢視断面図、第７図はその作用
を説明するための船首側面図、第８図は同船舶の
満載喫水状態を示す船首側面図である。１…船体、３…船首バルブ、７…船体中心線、
１０…フイン、１０ａ〜１０ｄ…フイン部材、１
１ｂ，１１ｃ…軸受、１２ｂ，１２ｃ…軸、１３
ｃ…軸、１４ｃ…軸受、１５…船体外板、２２ｃ
…ウオームホイール、２３ｃ…ウオーム。 Figures 1 to 3 show a retractable bow fin device as an embodiment of the present invention. Figure 1 is a plan view schematically showing the overall configuration, and Figure 2 is an enlarged view of the main parts. 3 is a sectional view taken along the - arrow in FIG. 2, FIG. 4 is a side view of the bow of a general ship equipped with a bow valve,
Figure 8 shows a conventional bow fin device.
The figure is a side view of the bow of a ship equipped with the same device, Figure 6 is a sectional view taken along the - arrow in Figure 5, Figure 7 is a side view of the bow to explain its function, and Figure 8 is a fully loaded ship. FIG. 3 is a side view of the bow showing the draft state. 1... Hull, 3... Bow valve, 7... Hull center line,
10...Fin, 10a-10d...Fin member, 1
1b, 11c...Bearing, 12b, 12c...Shaft, 13
c...shaft, 14c...bearing, 15...hull outer plate, 22c
...Worm wheel, 23c...Worm.

Claims

[Scope of utility model registration request]

On both sides of the bow valve, there are fins that protrude sideways to guide the water flow that runs onto the bow valve at shallow draft while gently descending to the rear. A retractable bow fin device, characterized in that the fin valve is provided with a fin drive mechanism capable of retracting the fin in order to reduce resistance.