【図面の簡単な説明】[Brief explanation of the drawing]
第１図はこの考案の第１実施例を示す斜視図、
第２図はこの考案の第１実施例を示す正面図、第
３図はこの考案の第１実施例を示す側面図、第４
図はこの考案の第２実施例を示す斜視図、第５図
は第４図Ａ…Ａ線の拡大断面図、第６図は断面図
、第７図は断面図、第８図は断面図、第９図は第
４図の部分拡大図、第１０図はこの考案の第２実
施例の変化した浮きの斜視図、第１１図はこの考
案の第３実施例を示す斜視図、第１２図は第１１
図Ｂ…Ｂ線の断面図、第１３図はこの考案の第４
実施例を示す斜視図、第１４図はこの考案の第５
実施例を示す斜視図。
１は浮き、２は螺線状の面、２ａは三日月形の
翼、２ｂはＶ角溝、３は横棒、４はピン、５は横
棒部品、６はスクリユー部品。
FIG. 1 is a perspective view showing the first embodiment of this invention;
Fig. 2 is a front view showing the first embodiment of this invention, Fig. 3 is a side view showing the first embodiment of this invention, and Fig. 4 is a side view showing the first embodiment of this invention.
The figure is a perspective view showing the second embodiment of this invention, Figure 5 is an enlarged sectional view taken along line A...A in Figure 4, Figure 6 is a sectional view, Figure 7 is a sectional view, and Figure 8 is a sectional view. , FIG. 9 is a partially enlarged view of FIG. 4, FIG. 10 is a perspective view of a modified float according to the second embodiment of this invention, FIG. 11 is a perspective view showing a third embodiment of this invention, and FIG. The figure is number 11
Figure B...A cross-sectional view taken along line B, Figure 13 is the fourth figure of this invention.
A perspective view showing the embodiment, FIG. 14 is the fifth embodiment of this invention.
FIG. 2 is a perspective view showing an example. 1 is a float, 2 is a spiral surface, 2a is a crescent-shaped wing, 2b is a V-square groove, 3 is a horizontal bar, 4 is a pin, 5 is a horizontal bar part, and 6 is a screw part.