JPS5935778Y2 - oil level rod - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improved structure of an oil level rod installed in an oil tank of a general automobile, cargo handling vehicle, etc.

BACKGROUND ART Conventionally, various types of cargo handling vehicles such as forklifts have been manufactured, ranging from small vehicles to large military and police vehicles, and their oil tanks are also sized to match the size of the vehicle.

For this reason, the oil level rods used to measure the amount of oil stored in the oil tank are individually manufactured with different lengths, and the one that matches the oil tank is used.

However, manufacturing oil level rods with different lengths is extremely complicated, and it is also difficult to store them, which does not lead to cost reduction, and it is time-consuming to assemble them. There were many problems.

Furthermore, in the past, in most cases, the oil level rod was fitted into a dedicated insertion hole drilled in a place separate from the oil inlet, and the oil level rod was inserted into the oil inlet by opening and closing the rod. It has a structure with a cap that can be closed freely.

For this reason, when manufacturing an oil tank, it was necessary to drill two openings, one for the oil level rod and the other for the oil inlet, making the work laborious and inefficient.

This invention was devised in view of the above-mentioned problems and to solve them, and its main purpose is to provide an oil level rod that can be applied to various types of oil tanks of different sizes. be.

Another object of the present invention is to provide an oil level rod which has a structure in which the level rod is attached to the cap, and which reduces the number of openings to be drilled into the oil tank and improves its productivity.

Still another object of the present invention is to provide an oil level rod in which the shank of the level rod is cut off to a predetermined length according to the capacity of the oil tank and then attached to the cap.

Another purpose of the present invention is to cut out the shaft of the level bar by cutting it at the holes provided at appropriate intervals to prevent it from coming off, so that the shaft can be cut very easily without using any tools. Our goal is to provide an oil level rod that can be made to any desired length.

Still another object of the present invention is to provide an oil level rod in which a level rod is attached to a cap having a communication path that reaches from the inside to the outside and communicates with the inside of the oil tank, and a filter is provided in a part of the communication path. is to provide.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of embodiments of the present invention will be explained below based on the drawings.

The main parts of the oil level rod 1 of the present invention include a cap 4 that opens and closes the oil inlet 3 of the oil tank 2, and a level rod 5 attached to the cap 4.

The oil tank 2 is sized according to the size of the vehicle, the size of the engine, etc., and there are various types depending on the model.

An oil inlet 3 for injecting oil is provided in a part of this upper surface.

Additionally, there is no need for a dedicated insertion slot for the level rod, which was required in the past.

The oil inlet 3 is usually a short pipe 6 connected to the oil tank 2.
is attached by welding etc., and is formed here, and the short pipe 6
A male screw 7 is carved into the hole.

The cap 4 has a crown shape and is provided with a female screw 8 that fits the male screw 7, and a boss portion 10 having a receiving hole 9 is formed in the center.
A through hole 11 is bored perpendicular to the .

In the embodiment shown in the drawings, the cap 4 includes an outer cap 12, an inner cap 13, and a filter 14.
It's Nishide.

The outer cap 12 includes a head wall 15 and an outer circumferential wall 16, and a boss portion 10 having a receiving hole 9 and a through hole 11 is vertically provided at the center of the lower surface of the head wall 15.

On the other hand, the inner cap 13 includes an upper wall 17 , a peripheral wall 18 that can fit inside the outer peripheral wall 16 , and a cylindrical wall 19 that is suspended from the upper wall 17 and has a smaller diameter than the peripheral wall 18 .
An insertion hole 20 is formed in the center of the outer cap 12 to allow the boss 10 provided on the outer cap 12 to pass therethrough, and a female screw 8 is threaded on the inner circumferential surface of the cylindrical wall 19.

The outer cap 12 and the inner cap 13 are assembled as shown in FIG. 1 with a cylindrical filter 14 interposed therebetween, and are prevented from coming off by a retaining ring 21 fitted to the boss portion 10.

Adhesive is applied to the upper and lower end surfaces of the filter 14 in advance, and the filter 14 is bonded between the head wall 15 and the soil wall 17.

As shown in FIGS. 1 and 4, an appropriate number of through holes 22 are bored inside the cylindrical wall 19 of the upper wall 17 of the inner cap 13, and are located between the cylindrical wall 19 and the peripheral wall 18. A suitable number of continuous holes 23 are drilled in the portion of the earthen wall 17, and a communication path is created through the space 24 formed between the outer cap 12 and the inner cap 13 and these through holes 22 and 23. However, the cylindrical filter 14 is provided to block part of the communication path.

When the cap 4 having such a structure is attached to close the oil inlet 3 of the oil tank 2, the through hole 22 and
The inside of the oil tank 2 and the outside communicate with each other via the space 24 and the communicating hole 23.

However, since the filter 14 is interposed in the middle of the communication path, dirty outside air is not introduced into the tank.

The level bar 5 consists of an upper shaft part 25 and a plate part 26 connected to the lower part of the shaft part 25, and the shaft part 25 has an appropriate number of retaining holes 27 at predetermined intervals perpendicular to the axis. It is penetrated in the direction.

Below the plate portion 26, a base line 28 and letters 29 are written to indicate the upper limit H and lower limit of oil.

In this embodiment, the cap 4 and level bar 5 are as follows:
It is made of synthetic resin (nylon-6).

Of course, it may be made of metal. As shown in FIGS. 1 and 2, a level rod 5 is inserted into the receiving hole 9 of the boss portion 10 of the cap 4.
The shaft portion 25 of the shaft portion 25 is inserted, the through hole of the boss portion 10 and the uppermost retaining hole 27 of the shaft portion 25 are brought into communication, and a fixing pin 30 such as a cotter pin is inserted thereto to integrate the two.

Each of the figures illustrates the case where the level bar 5 is the longest.

If the length of the level rod 5 is long depending on the size of the oil tank 2, the shaft portion 25 of the level rod 5 is cut off.

In this case, it is cut out at the stopper hole 27.

This is because it is easier to cut at the retaining hole 2T because concentrated stress is applied, and no cutting tool such as a cutter is required at all.

FIG. 3 shows the case where the level bar 5 is made the shortest.

Note that the level rod 5 is manufactured based on the longest one, and if it is acceptable to be shorter than that, it is gradually cut out and attached to the cap 4 as described above.

As mentioned above, according to the present invention, the length of the level rod is determined to correspond to the size of the oil tank, and then it is attached to the cap. There is no need to manufacture different types, making manufacturing and storage convenient.

Since the level rod and cap are integrated, the oil tank only needs an oil inlet and no other openings are required, which simplifies its manufacture and significantly reduces manufacturing costs. I can do it.

In addition, in the case where a communication path is provided inside the cap and a filter is provided in the middle of the communication path, dirty outside air does not flow into the oil tank, and deterioration of the oil can be prevented.

This invention has a through-hole that communicates between the cap and the level rod.
The structure is fixed by inserting a fixing pin into the retaining hole, and the cut is made at the retaining hole drilled in the level rod, so it can be easily removed without using cutting tools, and assembly is extremely simple. It has various effects such as being easy to use.

[Brief explanation of the drawing]

Figure 1 shows a part of the oil level rod according to the present invention.
The front view which shows the longest state by abbreviate|omitting. FIG. 2 is a side view showing a main part of the same thing broken away. FIG. 3 is a similar diagram showing the shortest state. FIG. 4 is a view taken along the line IV-IV in FIG. 1. 1...Oil level rod, 4...Cap, 5...
Level rod, 9... Receiving hole, 10... Boss part, 11...
・Through hole, 25...Shaft part, 26...Plate part, 27...
Retention hole, 30...Fixing pin.

Claims (1)

[Scope of utility model registration request] A level rod comprising a cap 4 having a boss part 10 vertically provided with a receiving hole 9 open at the bottom, a shaft part 25 fitted into the receiving hole 9, and a plate part 26 connected to the lower part of the shaft part 25. 5
The boss portion 10 of the cap 4 has a receiving hole 9.
At the same time, a plurality of retaining holes 27 are provided at appropriate intervals in the shaft portion 25 of the level rod 5, and the level rod 5 is cut out at the retaining holes 27. The oil level rod is characterized in that a fixing pin 30 is fitted into the through hole 11 and the retaining hole 27 to fix the cap 4 and the level rod 5.