JPS6450199U

JPS6450199U -

Info

Publication number: JPS6450199U
Application number: JP1987146317U
Authority: JP
Priority date: 1987-09-25
Filing date: 1987-09-25
Publication date: 1989-03-28

Description

[Brief explanation of drawings]

第１図は本考案の第一実施例の構成を示す説明
図、第２図は同じく第一実施例の平面図、第３図
は同じく作用を示す側面図、第４図は同じく作用
を示す正面図、第５図は第４図のＡ―Ａ線断面図
、第６図は同じく第二実施例を示す平面図、第７
図は第６図のＡ―Ａ線断面図、第８図は同じく第
三実施例を示す平面図、第９図は第８図のＡ―Ａ
線断面図、第１０図は同じく第四実施例を示す平
面図、第１１図は第１０図のＡ―Ａ線断面図、第
１２図は同じく第五実施例を示す平面図、第１３
図は第１２図のＡ―Ａ線断面図、第１４図Ａ，Ｂ
は同じく第五実施例の実験用模型の側面図及び平
面図である。１，２，３…弾性材料製の平板、４…ひれ支持
部、５…前縁、６…後縁。 Fig. 1 is an explanatory diagram showing the configuration of the first embodiment of the present invention, Fig. 2 is a plan view of the first embodiment, Fig. 3 is a side view similarly showing the action, and Fig. 4 is also showing the action. 5 is a sectional view taken along the line A--A in FIG. 4, FIG. 6 is a plan view showing the second embodiment, and FIG.
The figure is a sectional view taken along the line AA in FIG. 6, FIG. 8 is a plan view showing the third embodiment, and FIG. 9 is a sectional view taken along the line AA in FIG.
10 is a plan view showing the fourth embodiment, FIG. 11 is a sectional view taken along the line A--A in FIG. 10, and FIG. 12 is a plan view showing the fifth embodiment.
The figure is a sectional view taken along the line A-A in Figure 12, and Figures A and B in Figure 14.
3A and 3B are a side view and a plan view of the experimental model of the fifth embodiment, respectively. 1, 2, 3... flat plate made of elastic material, 4... fin support section, 5... front edge, 6... rear edge.

Claims

[Scope of utility model registration request]

In an elastic fin structure for propulsion such as a marine leisure board that moves on the water surface or underwater, the elastic fin is made by laminating a plurality of flat plates of elastic materials with adhesive or the like, and the number of laminated layers is large on the leading edge side and on the trailing edge side. The number of laminated layers decreases as you go to
A structure of an elastic fin for propulsion such as a marine leisure board, characterized in that the elastic fin has a large bending rigidity near the support, and the bending rigidity decreases as the distance from the support increases.