KR19990034518A - Tool for spark plug change of engine - Google Patents

Abstract

The present invention discloses a tool for replacing a spark plug of an engine. According to the present invention, the handle portion 11 is formed on one side of the handle 10, the socket portion 12 is formed on the other side. The wrench 20 is fitted to the socket portion 12 perpendicular to the axial direction of the handle 10. An insertion groove 21 into which the spark plug 3 is fitted is formed at the lower end of the wrench 20.

Description

Tool for spark plug change of engine

The present invention relates to a tool for replacing a spark plug of an engine, and more particularly, to a tool used to remove an existing spark plug and install a new spark plug in order to replace a spark plug which is a consumable.

In general, an engine of an automobile is configured to generate power by causing a spark from a spark plug to explode the mixer when a mixer in which air and fuel are mixed at a predetermined ratio is supplied to a combustion chamber and compressed by a piston.

On the other hand, the spark plug is not a permanently used part, but is a consumable that usually needs to be replaced every 20,000 km to 40,000 km. Therefore, the spark plug screwed to the cylinder head must be pulled out with a tool, and a new spark plug must be installed in the cylinder head.

1 is a view showing a state of removing or installing a spark plug with a conventional spark plug replacement tool.

As shown, the replacement tool has a handle portion (1) is formed on one side, the socket portion (2) into which the spark plug (3) is fitted. In particular, the handle 1 is provided with a knurling process to prevent the operator's hand from slipping.

When the upper part of the spark plug 3 is inserted into the socket part 2 and the handle part 1 is rotated as mentioned above, the spark plug 3 is removed from the cylinder head or installed in the cylinder head. .

By the way, the conventional replacement tool is to replace the spark plug (3) while rotating the handle portion (1) around the socket portion (2), so that the spark plug (1) In the state where it enters the position where it is located, the distance from the socket portion 2 to the handle portion 1 becomes a radius so that a rotatable space must be secured in the engine room.

However, since the engine room of the automobile has a tendency to be very narrow with various additional equipments, it is difficult to remove or install the spark plug with the existing replacement tool.

Therefore, the present invention has been made to solve the difficulties caused by the conventional spark plug replacement tool, it is possible to work in the upper part at a certain distance without having to enter the tool to the position where the spark plug is installed, gradually It is an object of the present invention to provide a tool for replacing a spark plug of an engine that can easily perform a spark plug replacement work regardless of a narrowing engine room.

1 is a view showing a conventional spark plug replacement tool

Figure 2 shows a spark plug replacement tool according to the invention

3 is a detailed view of the region III of FIG.

-Explanation of symbols for the main parts of the drawing-

3-spark plug 10-handle

11-handle 12-socket

20-Wrench 21-Slot

30-pin

In order to achieve the above object, the present invention has the following configuration as a dedicated tool used to rotate and replace the spark plug installed in the cylinder head of the engine.

A handle part is formed at one side of the handle, and a socket part is formed at the other side. An upper end of the wrench is inserted perpendicularly to the axial direction of the handle, and an insertion groove into which the spark plug is inserted is formed at the lower end of the wrench. On the other hand, the handle portion is knurled.

According to the configuration of the present invention described above, by inserting the wrench orthogonally without inserting the spark plug directly into the existing socket portion, and inserting the spark plug to the wrench, only the wrench needs to enter the position where the spark plug is installed, The handle can be freely rotated in a large space without interference.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a view showing the operation of replacing the spark plug with a replacement tool according to the present invention, Figure 3 is a detailed view of the part III of FIG.

As shown in FIG. 2, the handle part 11 is formed at the right side of the handle 10. The outer periphery of the handle portion 11 is knurled to prevent the operator's hand from slipping. The socket part 12 is formed at the lower left side of the handle 10.

The upper end of the wrench 20 is fitted into the socket portion 12. That is, the wrench 20 and the handle 10 are orthogonal. The spark plug 3 is fitted to the lower end of the wrench 20.

As shown in more detail in FIG. 3, the lower end of the wrench 20 has an insertion groove 21 into which the spark plug 3 is fitted, and a pin 30 for preventing the spark plug 3 from being detached. Is fastened.

Hereinafter, the operation of this embodiment configured as described above will be described in detail.

Without having to lower and enter the handle 10 to the position where the spark plug 3 is installed, only the wrench 20 enters the position, and then the spark plug 3 is inserted into the insertion groove 21. In this case, the handle 10 is positioned as high as the length of the wrench 20 at the point where the spark plug 3 is located, so that the handle 10 does not interfere with other parts of the engine compartment when the handle 10 is rotated. .

That is, when the handle 10 is turned while holding the handle 11, the handle 10 rotates about the socket 12. The wrench 20 fitted to the socket portion 12 also rotates, so that the spark plug 3 inserted into the insertion groove 21 also rotates, so that the spark plug 3 is detached from the cylinder head or the cylinder head. It is installed.

On the other hand, if the length of the wrench 20 is too long, the degree to which the rotational force provided from the handle portion 11 is transmitted to the insertion groove 21 is weakened, so that the handle of the worker is not too excessively lifted. The length of the wrench 20 is appropriately selected so that interference will not occur during the rotation operation of (10).

As described above, according to the present invention, by the wrench 20 fitted in the socket portion 12, the handle 10 can be rotated at a high position by the length of the wrench 20, so that the engine 10 The spark plug 3 can be easily replaced without interfering with the parts.

On the other hand, the present invention is not limited to the above-described specific preferred embodiments, and various changes can be made by those skilled in the art without departing from the gist of the invention claimed in the claims. will be.

Claims (2)

As a dedicated tool used to rotate and replace the spark plug installed in the cylinder head of the engine, A handle part formed at one side, and a handle formed at the other side; Spark plug of the engine, characterized in that the upper end is inserted into the socket portion of the handle orthogonal to the axial direction of the handle, the insertion groove is formed in the lower end is inserted into the spark plug, and rotates together with the handle. Replacement tool. The tool for replacing a spark plug of an engine according to claim 1, wherein the outer circumference of the handle part is knurled to prevent a worker's hand from slipping.