JPH09161988A - Static electricity eliminating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the mounting, omit use of any insulated electric wire, and provide adaptability for a key to be inserted into a keyhole. SOLUTION: A static electricity eliminating device A1 is structured so that a bonding agent 16 having large electric resistance is furnished on the rear surface of a thin resin piece 15 made of a conductive resin material having large electric resistance. A variant static eliminating device A2 to the device A1 is such that a bonding agent 27 is provided on the rear surface of a conductive resin piece 15' in thin form which is furnished with a shaft part 26 on the rear surface. Another variant static eliminating device A3 is such that the shank of a key 19 is attached to the inside of a key holder 20 in thin form made of a conductive resin material having large electric resistance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a static electricity eliminator for reducing an unpleasant electric shock caused by static electricity when a human body touches an object made of metal.

[0002]

2. Description of the Related Art When a fingertip or the like touches a metal object, static electricity that has been unknowingly applied to the human body becomes a high voltage and a weak electric current and flows to the metal object, causing an unpleasant shock to the human body. I may receive. In order to reduce such a shock of static electricity, a static electricity removing device A as shown in FIGS. 11 to 13 is used.

In this static eliminator A, a conductive resin case 1 and a discharge case 2 which are formed flat from a resin material of a flexible and good electric conductor are connected to an electric wire at the end of a covered electric wire 3. A terminal accommodating recess 4 is formed on the back surface of the conductive resin case 1, and a shaft portion 5 projects from the bottom surface of the terminal accommodating recess 4. A terminal accommodating recess 6 is also formed on the back surface of the discharge case 2, and a shaft portion 7 projects from the bottom surface of the terminal accommodating recess 6.

The round-shaped terminal 8 which is formed by removing the coating on one end of the covered electric wire 3 to expose the electric wire and crimped to the electric wire is accommodated in the terminal accommodating recess 4 of the conductive resin case 1 and the circular terminal 8 is formed.
After the shaft portion 5 is inserted into the hole, the back surface of the conductive resin case 1 is covered with a layer 9 of an adhesive material made of an electrically insulating material, and the surface of the layer of the adhesive material 9 is provided with a protective sheet 10 that is easily peeled off. It is attached.

On the other hand, the round terminal 11 crimped to the other end of the covered electric wire 3 is housed in the terminal housing recess 6 of the discharge case 2, and after the shaft portion 7 is inserted into the hole of the round terminal 11. The back surface of the discharge case 2 is covered with an adhesive layer 12 made of an electrically insulating material, and the protective sheet 1 is provided on the surface of the adhesive layer 12.
3 is attached. Thus, the static eliminator A is constructed.

FIG. 14 is a perspective view of a main part of FIG.
In this example, the protective sheet 10 of the conductive resin case 1 of the static eliminator A is peeled off, and the exposed adhesive layer 9 is pressed and fixed on the inside of the door D of the automobile which is easy to touch. Then, the protective sheet 10 of the discharge case 2 is peeled off, and the adhesive 12 is pressed and fixed to the end surface of the door D (the surface of the iron plate) that does not hinder the opening and closing of the door. It is attached.

When the fingertip is applied to the surface of the conductive resin case 1 when the door D is opened, the static electricity charged on the human body passes from the conductive resin case 1 through the electric wire 3 and the discharging case 2. Since it is released to the vehicle body, the potential difference between the human body and the automobile disappears, and the shock of static electricity is reduced. The above describes the case where the static eliminator A is attached to the inside surface of the door D of the automobile, but when the knob of the door of a hotel or the like is touched or when a coin is inserted into the coin slot of the vending machine. Since there is a risk of static electricity shocks, the static eliminator A can be used.

[0008]

When the static eliminator A is attached to the door D of the automobile, the vicinity of the door knob, the surface of the vending machine, etc., the covered electric wire 3 is arranged on the surface of the door D. Therefore, there is a possibility that the aesthetic appearance on the outer surface may be deteriorated, the wiring may be disturbed by a person, and the covered electric wire 3 that is abutted on the corner of the door D may be easily broken. Further, since the distance from the conductive resin case 1 mounted at a position easily touched by the fingertip to the discharge case 2 serving as the ground is not constant, when the length of the covered electric wire 3 is insufficient or the covered electric wire 3 is excessively hung down, etc. The problem of occurs.

It is desirable to attach the static eliminator A to the outer surface of the door D because the static electricity may be shocked when the key is inserted into the key hole of the door D of the automobile, but the key is inserted into the key hole. It is troublesome because the operation of touching the static electricity removing device A with a fingertip is added before the operation. In addition, there is a problem that the covered electric wire 3 arranged on the outer surface of the door D of the automobile becomes obtrusive. The present invention has an object to solve such a problem, and provides a static eliminator which is easy to install, does not require the covered electric wire 3, and can be applied to a key to be inserted into a keyhole.

[0010]

In order to achieve the above object, the static eliminator of the present invention comprises a conductive material on the back surface of a thin conductive resin piece formed of a conductive resin material having a large electric resistance. An adhesive having a large electric resistance mixed with is provided. Alternatively, a shaft portion is provided so as to project on the back surface of a thin conductive resin piece formed of a conductive resin material having a large electric resistance, and an adhesive material is provided, and the tip of the shaft portion is exposed from the surface of the adhesive material. It is characterized by being present. Alternatively, the handle portion of the key is fixed to the inside of a thin case-shaped key holder formed of a conductive resin material having high electrostatic resistance.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION A specific example of an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a static eliminator A _{1 according to} a first embodiment of the present invention, and FIG. 1 is a vertical sectional view, and FIG. 3 is a partially cutaway rear view of FIG. The static electricity eliminator A ₁ covers the back surface of a conductive resin piece 15 formed flat from a resin material having good electrical conductivity with flexibility, and covering the back surface of the adhesive material 16 having a large electric resistance with a protective sheet on the surface of the adhesive material 16. 17 is attached.

The reason why the conductive resin piece 15 is made to have flexibility is that the place where the static electricity removing device A ₁ is attached is not limited to a flat surface and may be a gently curved surface. Since it is not necessary to provide the terminal accommodating concave portion 6 as in A, it can be made extremely thin. Reference numeral 18 shown in FIG. 1 is a shallow groove provided on the surface of the conductive resin piece 15, and is designed to beautify the appearance of the static eliminator A ₁ .

The adhesive material 16 may be an adhesive layer having a high electric resistance formed by uniformly mixing fine electric conductors in the adhesive material and applied to the back surface of the conductive resin piece 15, or it may be fine. It may be a double-sided adhesive tape having a large electric resistance, which is formed by applying an adhesive material in which fine electric good conductors are uniformly mixed to both surfaces of the tape in which electric good conductors are uniformly mixed. The numerical values of the material, particle size, and mixing ratio of the fine electric conductor are properly selected in the course of repeated experiments in the future. Similar to the conventional static eliminator A, the easily peelable protective sheet 17 is attached to the surface of the adhesive layer 16.

Static eliminator A constructed as described above
_{In the case of 1} , the protective sheet 17 is peeled off and the adhesive 16 is pressed against the surface of the metal material to be attached. Figure 4 shows the static eliminator A ₁
Is a drawing showing a state in which is attached to the outer surface of the door D of the automobile, and if the static eliminator A ₁ is provided in the vicinity of the door handle H, after touching the static eliminator A ₁ , the door near The handle H may be operated.

[0015] Figure 5 is a diagram showing a state in which bonding the static eliminator A ₁ on the surface of the door D such as hotels, if provided an antistatic device A ₁ in the vicinity of the door handle H and keyhole C After touching the static eliminator A ₁ , a nearby locking / unlocking operation or door handle operation may be performed. Figure 6 is a diagram showing a state in which adhered to the surface of the door D of the vending machine B an antistatic device A _1, if provided static removers A ₁ in the vicinity of the keyhole C and coin return lever L It is convenient.

When the surface of the static eliminator A ₁ is touched with a fingertip, the static electricity accumulated in the human body is discharged to the metal door D through the conductive resin piece 15 and the adhesive 16 (see FIG. 7). So the electrostatic shock is relieved. The static eliminator A ₁ has an advantage that it has a simpler structure and can be made thinner than the conventional static eliminator A, and since the discharge case 2 and the covered electric wire 3 are not required, the installation is easy. Moreover, since there is no unsightly covered electric wire 3, there is an advantage that the appearance does not deteriorate.

FIG. 4 is a vertical cross-sectional view of a static electricity eliminator A ₂ showing a second embodiment of the present invention. The back surface of a conductive resin piece 15 'formed flat from a resin material of a flexible and good electric conductor. A shaft portion 26 is provided so as to project, and a region of the back surface excluding the shaft portion 26 is covered with an adhesive 27. The surface of the adhesive 27 is
It is almost flush with the tip surface of the shaft portion 26, and the protective sheet 17 is stuck on this.

Similar to the first embodiment, the protective sheet 17 is peeled off and the adhesive 27 is attached to the door D of the automobile (see FIG. 5), the door D of the room (see FIG. 6), and the door D of the vending machine B (see FIG. When pressed against a metal surface such as (see FIG. 7), the tip end surface of the shaft portion 26 is pressed against the metal surface, so the adhesive does not have to be conductive. When the surface of the static electricity eliminator A ₂ is touched by the fingertip, the static electricity accumulated in the human body is discharged to the metal surface via the shaft portion 26.

FIG. 9 is an exploded perspective view of a static eliminator A ₃ showing a third embodiment of the present invention, and FIG. 9 is a perspective view of a key 19 and a holder body 21. The static eliminator A ₃ constitutes a holder 20 for sandwiching the handle portion of the key 19 by superposing the holder main body 21 and the cover 22 like a key for an automobile, so that the appearance is the same as a conventional key holder. An LED lamp 24 that is turned on by the push button 23 is provided on the surface of the holder 20.

However, the holder 20 is formed of a conductive resin material having a high electric resistance, and an adhesive 25 having a high electric resistance mixed with a conductive material is applied to the inner surface of the case 20.
This key differs from the conventional key holder in that the handle of the key 19 is fixed to the adhesive 25. The adhesive 25 may be a double-sided adhesive tape made of a conductive material, as in the first embodiment described above. If the push button 23 and the LED lamp 24 are not provided, when the holder 20 is molded, the handle portion of the key 19 can be inserted into the mold and integrally molded.

The static eliminator A ₃ thus constructed
Gripping and inserting the tip of the key 19 into the keyhole,
The static electricity accumulated in the human body contacts the key hole from the holder 20 via the key 19 and is discharged from the cylinder lock having the key hole to the door, so that the electrostatic shock is reduced.

[0022]

Since the present invention is constructed as described above, it has the following effects. (1) The static eliminator of the present invention has a simple internal structure and can be provided at low cost. In addition, since the internal structure is simple, there is a degree of freedom in design such that it can be formed thin. (2) The static electricity eliminator of the present invention is easier to install than the conventional static electricity eliminator, and is not restricted by the length of the electric wire.

(3) Since it is not necessary to route the electric wire, there is no problem that the appearance of the surface of the attached door is deteriorated, and that a person or object hits the electric wire and pulls or breaks the electric wire. (4) The key holder type static eliminator does not need to be attached, and static electricity is released when the key is inserted and the key is rotated, so that an operation for reducing an electrostatic shock is unnecessary.

[Brief description of the drawings]

FIG. 1 is a first embodiment of the present invention, a static eliminator A ₁
FIG.

FIG. 2 is a longitudinal sectional view of FIG.

FIG. 3 is a partially cutaway rear view of FIG.

FIG. 4 is a static eliminator A _{2 according to} the first embodiment of the present invention.
FIG.

FIG. 5 is an explanatory view when the static electricity eliminator A ₁ (or A ₂ ) of the present invention is attached to an automobile.

FIG. 6 is an explanatory diagram when the static electricity eliminator A ₁ (or A ₂ ) of the present invention is attached to a door of a hotel or the like.

FIG. 7 is an explanatory diagram when the static electricity eliminator A ₁ (or A ₂ ) of the present invention is attached to a vending machine.

FIG. 8 is an explanatory diagram of static electricity discharge by the static electricity eliminator A ₁ (or A ₂ ) of the present invention.

FIG. 9 is an exploded perspective view of the static eliminator A ₃ of the present invention.

FIG. 10 is a perspective view of a holder body and a key of the static eliminator A ₃ of the present invention.

11 is a front view of a conventional static eliminator A. FIG.

12 is a vertical cross-sectional view of FIG.

13 is a partially cutaway rear view of FIG.

FIG. 14 is a perspective view illustrating an example of use of a conventional static eliminator A.

[Explanation of symbols]

A ₁ , A ₂ , A ₃ Static eliminator 15, 15 ′ Conductive resin piece 16, 27 Adhesive material 17 Protective sheet 19 Key 20 Holder 21 Holder body 22 Cover 25 Adhesive material 26 Shaft part

Claims (3)

[Claims] 1. A static electricity eliminator characterized in that an adhesive having a high electric resistance mixed with a conductive material is provided on the back surface of a thin conductive resin piece formed of a conductive resin having a high electric resistance. . 2. A shaft portion is provided on the back surface of a thin conductive resin piece formed of a conductive resin material having a high electric resistance, and an adhesive material is provided on the back surface, and the tip of the shaft portion is formed from the surface of the adhesive material. A static eliminator characterized by being exposed. 3. A static electricity eliminator characterized in that a handle of a key is fixed inside a thin case-shaped key holder formed of a conductive resin material having a high electric resistance.