JPH0124871Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a pin plug used for connecting and disconnecting electrical circuits.

[Conventional technology]

If an oxide film is formed on the pin jack, the voltage-current characteristics will deteriorate. For this reason, it is desirable that the pin jack be cleaned regularly, and generally,
Cleaning was performed using cotton swabs or gauze impregnated with a cleaning solution.

[The problem that the idea aims to solve]

However, cleaning materials such as cotton swabs and gauze must be used separately from the pin plugs, and there is a risk that they will be lost, resulting in disadvantages and inconveniences such as having to search for them when they are not on hand when needed.

This invention attempts to provide a pin plug by eliminating such disadvantages and inconveniences.

[Means to solve the problem]

For example, as shown in FIG. 3, the pin plug of this invention has a pin plug main body P in which a metal pin terminal 4 is disposed inside a metal cylindrical terminal 3 whose surface is covered with an insulating cover 2. Assuming this, the pin plug body P is always equipped with a means for cleaning the pin jack J. The cleaning means includes a cleaning protrusion 5 that can be inserted into and removed from the pin hole 7 of the metal tube 8 of the pin jack J from the side surface of the insulating cover 2;
A cleaning cylinder part 6 that can be inserted into and removed from the outer peripheral surface of the metal cylinder 8 is provided to protrude in a direction perpendicular to the direction in which the metal pin-shaped terminal 4 projects.

[Effect]

In such a case, when the pin plug is inserted into the pin jack J, cleaning of the pin jack J is encouraged since the cleaning protrusion 5 and the cylindrical part 6 are always provided on the insulating cover 2 and are easily visible.

When the cleaning protrusion 5 and the cylinder part 6 are inserted into the pin hole 7 of the metal tube 8 of the pin jack J and its outer circumferential surface and rubbed, the pin hole 7 and the outer circumferential surface of the metal tube 8 are rubbed at the same time, that is, the entire pin jack J is cleaned. can be cleaned all at once.

Also, when inserting or removing the metal pin type terminal 4 and metal cylindrical terminal 3 from the pin jack J,
By hooking the fingers of the hand that grips the insulating cover 2 onto the cleaning cylinder part 6, it becomes easier to grip the insulating cover 2 in a non-slip manner.In other words, the cleaning cylinder part 6 has a non-slip function when gripping the insulating cover 2 by hand. demonstrate. On the contrary, the cleaning protrusion 5 and the cylindrical part 6 are attached to the pin jack J.
When inserting or removing the insulating cover 2, the part that covers the metal cylinder part 3 can be used as a grip.

[Effect of idea]

According to the pin plug of this invention, a cleaning protrusion 5 and a cylindrical portion 6 that can be inserted into and removed from the pin hole 7 of the metal cylinder 8 of the pin jack J and its outer peripheral surface are protruded from the side surface of the insulating cover 2. Therefore, whenever this pin plug is connected to the pin jack J, the cleaning protrusion 5 and the cleaning cylinder part 6 catch the eye, thus calling attention to the cleaning of the pin jack J and reminding the user to forget to clean it. In addition, the entire inner and outer circumferential surfaces of the metal tube 8 of the pin jack J can be efficiently cleaned at any time, and it is extremely convenient for cleaning since there is no problem of losing the cleaning member as it is a separate cleaning member from the pin plug body P. be. In addition, since these cleaning protrusions 5, the cylindrical portion 6, and the metal pin terminal 4 are arranged in directions perpendicular to each other, when connecting to the pin jack J or cleaning it, the cleaning cylindrical portion 6 Alternatively, the part of the insulating cover 2 that covers the metal cylindrical terminal 3 can be used as a non-slip grip for the gripping hand, and can be easily inserted into and removed from the pin jack J, making it convenient to use.

〔Example〕

An embodiment of the pin plug according to this invention will be described based on the drawings.

In FIGS. 1 and 2, the pin plug main body P includes a plastic insulating cover 2 attached to the end of the cord 1, and a metal cylindrical terminal 3 whose surface is integrally covered with the insulating cover 2. , disposed at the center inside the metal cylindrical terminal 3
It consists of a metal pin type terminal 4 protruding forward,
Both terminals 3 and 4 are connected to the terminal of cord 1.
Then, from the side surface of the insulating cover 2, a cleaning protrusion 5 having the same shape as the metal pin type terminal 4 or a shape similar thereto is provided integrally or separately to protrude in a direction perpendicular to the protruding direction of the metal pin type terminal 4. do. Further, on the side surface of the same insulating cover 2, a cleaning cylinder part 6 having approximately the same inner diameter as the metal cylinder terminal 3 is protruded so as to surround the entire circumference of the cleaning protrusion 5 with a predetermined gap. .

In such a case, as shown in Fig. 3, before connecting the pin plug main body P to the pin jack J, grasp the insulating cover 2 and insert the cleaning protrusion 5 into the pin hole 7 of the metal cylinder 8 of the pin jack J and rotate it or take it out. By rubbing and rubbing, it adheres to the inner circumferential surface of the pin hole 7. This makes it possible to remove oxide films and dirt. At the same time, it becomes possible to remove the oxide film and dirt adhering to the outer circumferential surface of the metal cylinder 8 of the pin jack J by rubbing the cleaning cylinder part 6.

The cleaning protrusion 5 and the cleaning cylinder part 6 can be in a dry form so that they can be rubbed against the inner peripheral surface of the pin hole 7 of the pin jack J and the outer peripheral surface of the metal cylinder 8 to remove oxide films and dirt, respectively. The cleaning protrusion 5 and the cylinder part 6 are made of a material capable of absorbing a cleaning liquid (e.g., isopropyl alcohol, tetralead carbon liquid, etc.), and the cleaning is performed by impregnating the cleaning liquid with the cleaning liquid. It can also be done.

It should be noted that if the external shape of the insulating cover 2 is formed into a polygonal shape such as a rectangle as shown in the figure, it will be easier to grip and the operation of inserting and removing it into the pin jack J will be easier.

[Brief explanation of the drawing]

FIG. 1 is a perspective view illustrating a pin plug according to the invention, FIG. 2 is a sectional view, and FIG. 3 is a usage state diagram. P...Pin plug body, J...Pin jack,
DESCRIPTION OF SYMBOLS 1... Cord, 2... Insulating cover, 3... Metal cylindrical terminal, 4... Metal pin type terminal, 5... Cleaning protrusion, 6... Cleaning cylindrical portion.

Claims (1)

[Claims for Utility Model Registration] A pin plug body P in which a metal pin-shaped terminal 4 is disposed inside a metal cylindrical terminal 3 whose surface is covered with an insulating cover 2; The pin jack cleaning means includes a cleaning protrusion 5 that can be inserted into and removed from the pin hole 7 of the metal cylinder 8 of the pin jack J from the side surface of the insulating cover 2, and a cleaning protrusion 5 that can be inserted into and removed from the pin hole 7 of the metal cylinder 8 of the pin jack J from the side surface of the insulating cover 2. A pin plug characterized in that an insertable and removable cleaning tube portion 6 is provided to protrude in a direction perpendicular to the protruding direction of the metal pin type terminal 4.