JPS6015135Y2 - Oil dipstick support device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an oil dipstick support device provided in an engine.

Generally, the oil dipstick is inserted into the cylinder block by diagonally penetrating the side wall of the cylinder block or a small side cover dedicated to supporting the oil dipstick attached to the side wall so that the quantity and quality of the engine oil can be checked. It has become.

However, in the past, as a device for supporting a dipstick in an obliquely inserted state, for example, as shown in FIG. Then, a protective tube 23 extending to the lower part of the cylinder block 21 is fixed in the guide hole 22, or a diagonal guide hole 25 is integrally formed in the engine side cover 24 made of cast iron as shown in FIG. ing.

In addition, 26 in FIGS. 3 and 4 is an oil dipstick into which the protective tube 23 is inserted.

However, as mentioned above, drilling the guide holes 22 and 25 obliquely takes time and effort, and furthermore, the cylinder block 21 or the engine side cover 24 must be cast into a complicated shape, which makes it difficult to manufacture the hook shape. It was also time consuming.

The object of the present invention is to provide a reliable oil dipstick support device that does not require much time and effort in the manufacturing process as described above.

To explain the present invention based on the drawings, FIG. 1 is a partial longitudinal section of the lower half of the engine, showing the cylinder block 1.
Oil pan 2 is fixed to the bottom of the oil pan 2.
Engine oil L is injected inside.

A shows the oil surface when the maximum amount of engine oil L is filled when the engine is used for a marine vehicle, and B shows the oil surface at the minimum required amount of engine oil.

3 is a connecting rod, and cylinder block 1
They are arranged in parallel within the center, for example, on each of the center lines O□ to 03, respectively.

A cylinder block 1 corresponding to a suitable connecting rod 3, for example a connecting rod 3 on the center line 03
A window hole 5 for inspection inside the cylinder block 1 is provided in the side wall 4 of the cylinder block 1.
An engine side cover 6 covering the window hole 5 is fixed to the cylinder block side wall 4 with bolts 7.

The engine side cover 6 is made of a flat iron plate, and has an oil injection tube 8 welded thereto that communicates the inside and outside of the cylinder block 1, and also protects a cylindrical oil dipstick that passes diagonally through the engine side cover 6. A cylinder guide 9 is welded.

In FIG. 2, which shows the cross section taken along the line ■-■ in FIG. There is.

An oil dipstick protection tube 10 extending to the minimum required amount of oil surface B is press-fitted into the protection tube guide 9 (or after being press-fitted, the protection tube guide 9
The oil dipstick protection tube 10 also extends to the outside of the cylinder block 1 to some extent.

A stopper 12 that comes into contact with the upper edge of the protection tube 10 is fixed to the upper end portion of the oil dipstick 11 .

The hole made in the engine side cover 6 for inserting the protective cylinder guide 9 does not need to be diagonally made, and a hole that is just wide enough to allow the protective cylinder guide 9 to be inserted diagonally is sufficient.

As explained above, in the present invention, the engine side lid 6 is manufactured from a flat iron plate, and the protective tube guide 9, which is manufactured separately from the engine side lid 6 (for example, manufactured by cutting a pipe, etc.), is attached to the side lid. 6 is penetrated diagonally and fixed by welding, so there is no need to drill the protective cylinder guide hole 25 (Fig. Conventional engine side lid 2 that is molded into the shape by casting
4 (FIG. 4), the manufacture of the engine side lid 6 equipped with the oil dipstick support device (protective tube guide 9 and protective tube 10) is extremely simple.

Further, since the protective cylinder guide 9 is fixed by welding through the engine side lid 6 made of iron plate, the oil dipstick 11 can be supported reliably.

To summarize the advantages of the present invention: (4) The support device of the present invention includes a side cover 6 made of a flat iron plate,
It consists of a cylindrical protection tube guide 9 made from a cut pipe, etc., and a cylindrical protection tube 10, and since their individual shapes are extremely simple, the guide cannot be integrated with the cylinder block or side cover as in the past. Compared to casting, it is easier to procure materials and material processing is also extremely easy.

(B) Also, the protective tube guide 9 is passed diagonally through the side cover 6 and fixed to it, but since the side cover 6 is flat and the guide 9 is fixed by welding, the protective tube of the side cover 6 is fixed. There is no need to particularly form the guide hole 25 obliquely.

That is, if the insertion hole 25 is made large enough to allow the guide 9 to pass diagonally through, the guide 9 can be reliably fixed diagonally by welding, and therefore drilling does not require much effort.

(C) Since the cylindrical protection tube 10 is press-fitted into the inner circumferential side of the cylindrical guide 9, there is no need to perform any special molding process to attach the protection tube 10 to the guide 9.

[Brief explanation of the drawing]

Fig. 1 is a partial longitudinal sectional view of an engine equipped with a dipstick support device according to the present invention, Fig. 2 is an enlarged cross-sectional view taken along the line ■-■ of Fig. 1;
3 and 4 are sectional views similar to FIG. 2, respectively, showing a conventional example. 1... Cylinder block, 6... Engine side lid, 9... Oil dipstick protection tube guide, 10...
... Oil dipstick protection tube, 11... Oil dipstick.

Claims (1)

[Scope of utility model registration request] The engine side cover, which covers the window hole for inspecting the crankshaft etc. in the cylinder block and is attached to the side wall of the cylinder block, is made of a flat iron plate separate from the cylinder block, and passes through this side cover diagonally. An oil dipstick support device characterized in that a cylindrical oil dipstick protection tube guide is welded to a side cover, and the oil dipstick protection tube is press-fitted into the protection tube guide.