JPH026699U

JPH026699U -

Info

Publication number: JPH026699U
Application number: JP8556288U
Authority: JP
Priority date: 1988-06-28
Filing date: 1988-06-28
Publication date: 1990-01-17

Description

[Brief explanation of drawings]

第１〜３図は本考案の第１実施例としての舶用
リアクシヨンフイン装置を示すもので、第１図は
その側面図、第２図は第１図の−矢視図、第
３図は第１図の−矢視図であり、第４〜６図
は本考案の第２実施例としての舶用リアクシヨン
フイン装置を示すもので、第４図はその側面図、
第５図は第４図の−矢視図、第６図は第４図
の−矢視図であり、第７図は上記装置におけ
るフインの配置と伴流との関係を示すグラフであ
り、第８〜１２図は従来の舶用リアクシヨンフイ
ン装置の一例を示すもので、第８図はその側面図
、第９図は第８図の−矢視図、第１０図は第
８図の−矢視図、第１１図は左舷側の第１の
フインの断面図、第１２図は右舷側の第１のフイ
ンの断面図であり、第１３図はフインをそなえな
い場合の船体の直進時における船尾の水の流れの
状態を示す側面図、第１４図はフインをそなえな
い場合の船体の回頭時における船尾の水の流れの
状態を示す側面図であり、第１５，１６図は従来
の舶用リアクシヨンフイン装置の他の例を示すも
ので、第１５図はその側面図、第１６図は第１５
図の−矢視図である。１……船体、２……スターンフレーム、３……
ボツシング、４……プロペラ軸、５……スクリユ
ープロペラ、６……フインボス、７ａ〜７ｆ……
第１のフイン、８ａ〜８ｆ……第２のフイン、９
……ラダーホーン、１０……舵、１１ａ〜１１ｃ
……第１のフイン。 1 to 3 show a marine reaction fin device as a first embodiment of the present invention, in which FIG. 1 is a side view thereof, FIG. 2 is a view taken along the - arrow in FIG. 1, and FIG. FIG. 1 is a view taken along the - arrow in FIG. 1, and FIGS. 4 to 6 show a marine reaction fin device as a second embodiment of the present invention, and FIG. 4 is a side view thereof;
FIG. 5 is a view in the direction of the - arrow in FIG. 4, FIG. 6 is a view in the direction of the - arrow in FIG. 4, and FIG. 7 is a graph showing the relationship between the arrangement of the fins and wake in the above device, 8 to 12 show an example of a conventional marine reaction fin device, in which FIG. 8 is a side view thereof, FIG. 9 is a view taken along the − arrow in FIG. 8, and FIG. 10 is a − arrow view in FIG. 8. 11 is a cross-sectional view of the first fin on the port side, FIG. 12 is a cross-sectional view of the first fin on the starboard side, and FIG. 13 is a cross-sectional view of the first fin on the starboard side, and FIG. 13 is a view when the hull is moving straight without the fin. Fig. 14 is a side view showing the state of water flow at the stern when the ship is turned without fins, and Figs. Another example of a marine reaction fin device is shown, FIG. 15 is a side view thereof, and FIG. 16 is a side view thereof.
It is a - arrow direction view of a figure. 1...hull, 2...stern frame, 3...
Botting, 4...Propeller shaft, 5...Screw propeller, 6...Fin boss, 7a to 7f...
First fin, 8a to 8f...Second fin, 9
... Rudder horn, 10 ... Rudder, 11a-11c
...The first Finn.

Claims

[Claims for Utility Model Registration] (1) In front of the screw propeller at the stern, a plurality of first fins protruding radially from the fin bosses surrounding the propeller shaft are arranged in front of the screw propeller in the direction opposite to the direction of rotation of the screw propeller. The above-mentioned first
In front of the fins, a plurality of second fins protrude radially from the hull around the propeller shaft, and are arranged so as to bend the flow of water in a direction opposite to the direction of rotation of the screw propeller. A marine reaction fin device, wherein the first fin is provided only on a rising side of a propeller blade when the screw propeller rotates forward. (2) Claim (1) characterized in that the second fin is provided only on the descending side of the propeller blade when the screw propeller rotates forward.
) Marine reaction fin device described in ).