JPH038987Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of an oil level gauge for detecting the oil level in an oil reservoir of an internal combustion engine.

[Prior art and its issues]

As a means of detecting the oil level in the oil reservoir of an internal combustion engine, it is generally well known that a gauge rod is inserted into the oil reservoir and the height position of the oil level is measured based on its wetness. However, this method has the disadvantage that it is difficult to distinguish between wet areas and non-wet areas, as it is necessary to distinguish slight differences in hue due to the wetness of the gauge rod, especially when working in the dark. Another drawback is that it is difficult to reinsert the gauge rod into the oil reservoir in a dark condition.

Therefore, as a countermeasure to improve the ability to easily identify wet areas even in the dark and to easily reinsert the gauge rod, we proposed the prior art
- Publication No. 72963 applies fluorescent paint to the gauge part to make the contrast between the parts covered with oil and the parts not coated with oil clear, and also to make it possible to confirm the position of the tip of the gauge rod. I am proposing that.

However, this gauge rod is always inserted into the oil reservoir of the internal combustion engine.
Since the oil in an internal combustion engine is at a fairly high temperature, the fluorescent paint as in the prior art cannot withstand the high temperature, and the fluorescent paint may peel off or change color. At the same time, when inserting or removing the gauge rod,
In addition, the fluorescent paint that has peeled off or rubbed off from the gauge rod gets mixed into the lubricating oil for the internal combustion engine, accelerating the deterioration of the oil. Otherwise, this may lead to a situation where the wear of various operating parts of the internal combustion engine is accelerated.

The present invention provides an oil level gauge that solves this problem.

[Means to solve the problem]

To achieve this object, the present invention provides an oil level in which a gauge part is formed at the tip of a gauge rod inserted into an oil reservoir in an internal combustion engine, and a grip part is connected to the other end of the gauge rod. In the gauge, a plating layer of a metal having a white or bluish-white metallic luster, such as chrometol plating or hot-dip zinc plating, is formed on at least the surface of the gauge part of the gauge rod.

[Functions and effects of the idea]

With this configuration, the gauge rod can be used even in the dark under a small amount of light due to the luster of the metal plating layer, which has a white or bluish-white metallic luster, such as chrometol plating or zinc hot-dip plating. It glows faintly white, and the boundary between areas wet with oil and areas that are not is clear, making it easy to see the position of the oil surface even in a dimly lit environment.

In addition, oil level gauges for internal combustion engines are quite long from the grip to the tip of the gauge rod, and the engine room has a complicated array of wiring and piping, so it cannot be used in the dark. When reinserting a gauge rod that has been pulled out once into the oil reservoir, it may be difficult to know where the tip of the gauge rod is located, and it may take some time to reinsert it. The gauge part is made of a metal plating layer with a white or bluish-white metallic luster, such as chrometol plating or zinc hot-dip plating.
It glows faintly even in the dark, and the position of the tip of the gauge rod can be easily confirmed, making it easy to reinsert it into the oil reservoir even in the dark.

As mentioned above, the present invention has metal plating applied to the surface of the gauge part at the tip of the gauge rod, and this metal plating layer does not discolor or peel off due to the high temperature of the oil. There is no risk of rubbing off when inserting or removing the oil into the oil reservoir, so it is highly durable and promotes the deterioration of lubricating oil in internal combustion engines and the wear and tear of various operating parts in internal combustion engines. There is nothing to do.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 designates an oil level gauge which is connected to a gauge rod 2 on a gripping part 3 and has a fixing cap 4 fixed to the middle part thereof. Insert the gauge rod 3 of the oil level gauge 1 into the oil reservoir chamber 5 of the internal combustion engine, and
is fitted into a guide pipe 6 fixed to the oil reservoir chamber 5, so that the gauge rod 3 can always be positioned in the oil reservoir chamber 5 at a constant height and in a constant posture.

The oil reservoir chamber 5 is provided at the tip of the gauge rod 3.
A flat gauge part 3' is formed to be immersed in the oil 7 in the oil 7, and a scale 8 indicating the upper and lower limits of the appropriate oil level in the oil 7 is engraved on the flat gauge part 3'. There is.

Then, a metal plating layer 9 having a white or bluish-white metallic luster is formed on the entire surface of the gauge rod 3 or at least on the planar gauge portion 3' at the tip of the gauge rod 3. This plating layer 9 can be formed by electroplating, chemical plating,
Any type of hot-dip plating may be used, and for example, chrometol plating or zinc hot-dip plating is preferable.

With this structure, the cage part 3' at the tip of the gauge rod 3 can be made to shine faintly in the slightest light even in the dark due to the luster of the metal plating layer 9 applied to its surface. The boundary between areas that are wet with oil and areas that are not is clearly visible, making it easy to check the oil level even in the dark. Of course, the contrast becomes even clearer in bright places.
Needless to say, checking the oil level becomes extremely easy.

The metal plating layer 9 applied to the surface of the cage portion 3' will not peel off even if rubbed, and no matter how high the oil 7 becomes,
Since there is no discoloration or peeling, the above-mentioned problems of the prior art do not occur at all.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is an enlarged view of the tip of the gauge rod, Fig. 2 is a cross-sectional view taken from Fig. 1, and Fig. 3 is a view showing the state inserted into the oil reservoir chamber. be. 1... Oil level gauge, 2... Gripping part, 3
...Gauge rod, 3'...Gauge part, 9...Metal plating layer.

Claims (1)

[Scope of utility model registration request] In an oil level gauge in which a gauge part is formed at the tip of a gauge rod inserted into an oil reservoir chamber of an internal combustion engine, and a grip part is connected to the other end of the gauge rod, at least the gauge part of the gauge rod is provided. An oil level gauge for an internal combustion engine, characterized in that a plating layer of metal having a white or bluish-white metallic luster, such as chrometol plating or hot-dip zinc plating, is formed on the surface of the oil level gauge.