JPH0484705U

JPH0484705U -

Info

Publication number: JPH0484705U
Application number: JP12917390U
Authority: JP
Priority date: 1990-11-30
Filing date: 1990-11-30
Publication date: 1992-07-23

Description

[Brief explanation of the drawing]

第１図は第１考案に係る第１実施例を説明する
図で、第１図Ａはオイルドレン装置の縦断面図、
第１図Ｂはエンジンオイルの油面がプラグ取付用
ボスの高さ位置に至るまでのオイルドレン状態の
説明図、第１図Ｃはエンジンオイルの油面がプラ
グ取付用ボスの高さ位置に至つた後のオイルドレ
ン状態の説明図、第１図Ｄはオイルドレン装置の
平面図である。第２図は第２考案に係る第２実施
例を説明する図で、第２図Ａは第１図Ａ相当図、
第２図Ｂは第１図Ｂ相当図、第２図Ｃは第１図Ｃ
相当図、第２図Ｄはプラグ取付用ボスに用いるみ
ぞ付きナツトの底面図である。第３図は従来技術
を説明する図で、第３図Ａは第１図Ａ相当図、第
３図Ｂは第１図Ｂ相当図、第３図Ｃは第１図Ｃ相
当図である。１……オイルパン、２……１の底壁、３……オ
イルドレン口、４……プラグ取付用ボス、５……
メネジ孔、６……ドレンプラグ、７……４の外周
面、８……３の周肉部、９……残留オイル流出口
、１０……プラグ頭部、１１……ガスケツト、１
２……残留オイル流出通路。 FIG. 1 is a diagram illustrating a first embodiment according to the first invention, and FIG. 1A is a longitudinal sectional view of an oil drain device;
Figure 1B is an explanatory diagram of the oil drain state until the engine oil level reaches the height of the plug installation boss, and Figure 1C shows the engine oil level reaching the height of the plug installation boss. FIG. 1D is a plan view of the oil drain device. FIG. 2 is a diagram for explaining the second embodiment according to the second invention, and FIG. 2A is a diagram corresponding to FIG. 1A;
Figure 2B is equivalent to Figure 1B, Figure 2C is equivalent to Figure 1C.
A corresponding view, FIG. 2D, is a bottom view of a grooved nut used for a plug mounting boss. FIG. 3 is a diagram for explaining the prior art, in which FIG. 3A is a diagram equivalent to FIG. 1A, FIG. 3B is a diagram equivalent to FIG. 1B, and FIG. 3C is a diagram equivalent to FIG. 1C. 1...Oil pan, 2...Bottom wall of 1, 3...Oil drain port, 4...Plug installation boss, 5...
Female screw hole, 6...Drain plug, 7...Outer circumferential surface of 4, 8...Surrounding wall of 3, 9...Residual oil outlet, 10...Plug head, 11...Gasket, 1
2...Residual oil outflow passage.

Claims

[Claims for Utility Model Registration] 1. A plug mounting boss 4 is led out upward from an oil drain port 3 formed in the bottom wall 2 of the oil pan 1 of the engine, and a female screw hole is formed in the plug mounting boss 4. In an oil drain device for an oil pan of an engine, in which a drain plug 6 is removably screwed into a drain plug 6 from below, the oil drain port 3 is connected to the oil drain port 3 at a position outside the outer circumferential surface 7 of the plug mounting boss 4. A residual oil outlet 9 is opened in the peripheral wall 8 of the drain plug 6, and a gasket 11 interposed between the plug head 10 of the drain plug 6 and the peripheral wall 8 of the oil drain port 3 is used to drain the residual oil outlet 9. An oil drain device for an engine oil pan, characterized in that the oil drain device is sealed. 2. In the engine oil pan oil drain device according to claim 1, instead of forming the residual oil outlet 9 in the peripheral wall part 8 of the oil drain port 3, a wall wall of the plug mounting boss 4 is formed. A residual oil outflow passage 1 that connects the inside of the oil pan 1 and the oil drain port 3 is provided at the bottom.
An oil drain device for an oil pan of an engine, characterized in that: 2 is provided in a transverse shape.