JPH03105762U

JPH03105762U -

Info

Publication number: JPH03105762U
Application number: JP1990015413U
Authority: JP
Priority date: 1990-02-19
Filing date: 1990-02-19
Publication date: 1991-11-01

Description

[Brief explanation of drawings]

図面は本考案の実施例を示すものであつて、そ
の第１図は本考案におけるケーシングとＯリング
との関連を示す斜視図、第２図は本考案における
ケーシングの平面図、第３図は本考案における環
状溝の固定部にＯリングを固定しようとしている
状態を示す斜視図、第４図は第３図の平面図、第
５図は第４図の−矢視断面図、第６図はケー
シングを他の構造物の被取付箇所に取り付けたと
ころを示す断面図、第７図、第８図は固定部の別
の実施例を示す平面図、第９図はＯリングの屈曲
箇所と環状溝の周路屈曲箇所とが同一であること
を示す平面状斜視図、第１０図はＯリングの屈曲
箇所が環状溝の屈曲箇所に対応して収まることを
示す斜視図、第１１図は従来の固定手段にてＯリ
ングを環状溝に固定した平面図、第１２図は第１
１図のＰ−Ｐ矢視断面図、第１３図は従来の固定
手段にてＯリングを環状溝に固定してから他の構
造物の被取付部に固着したところを示す断面図、
第１４図はケーシングをエンジンに取り付けると
ころを示す斜視図である。１……環状溝、１ｂ……側壁、Ｂ……Ｏリング
、Ｃ_１……周路溝中心線、Ｃ_２……周路中心線、
２……押圧突出部、３……補助突出部。 The drawings show an embodiment of the present invention, in which the first figure is a perspective view showing the relationship between the casing and the O-ring in the present invention, the second figure is a plan view of the casing in the present invention, and the third figure is a perspective view showing the relationship between the casing and the O-ring in the present invention. FIG. 4 is a plan view of FIG. 3, FIG. 5 is a sectional view taken along the - arrow in FIG. 4, and FIG. 7 and 8 are plan views showing another example of the fixed part, and FIG. 9 shows the bent part of the O-ring. FIG. 10 is a plan perspective view showing that the bending points of the annular groove are the same as the bending points of the circumferential groove; FIG. A plan view of the O-ring fixed to the annular groove using conventional fixing means, Figure 12 is the first
1 is a sectional view taken along the line P-P in FIG. 1; FIG. 13 is a sectional view showing an O-ring fixed to an annular groove using a conventional fixing means and then fixed to an attached part of another structure;
FIG. 14 is a perspective view showing how the casing is attached to the engine. 1...Annular groove, 1b...Side wall, B...O ring, _C1 ...Circumferential groove center line, _C2 ...Circumferential center line,
2...Press protrusion, 3...Auxiliary protrusion.

Claims

[Claims for Utility Model Registration] (1) An O-ring having a circumferential center line that is substantially the same as the circumferential groove center line of the annular groove; the pressing protrusion,
A structure for preventing O-rings from falling off, characterized in that an auxiliary protrusion is formed on the other side wall so as to sandwich the pressing protrusion back and forth in the circumferential direction. (2) consisting of an O-ring having a circumferential center line that is substantially the same as the circumferential groove center line of the annular groove, and having a pressing protrusion on one of the opposing both side walls of the annular groove;
An auxiliary protrusion is formed on the other side wall so as to sandwich the pressing protrusion back and forth in the circumferential direction, and the pressing protrusion has a larger protrusion dimension from the side wall than the auxiliary protrusion. Prevention structure.