JPH0447086A - Key composed of resistor - Google Patents

Abstract

PURPOSE:To prevent an electrostatic hindrance by forming a part or the whole of a key body from an electric resistor. CONSTITUTION:A part 2 of a key body to be inserted into a lock and a part 4 of the key body to be gripped by a human hand are coupled to each other by means of a resistor 6. Further, a current generated by static electricity in the human body is gradually discharged so as to suppress the static electricity. Thereby it is possible to prevent generation of an arc caused by static electricity.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention is applicable to keys in general, including keys for vehicles such as automobiles.

[Conventional technology]

As shown in Figure 1, conventional keys are usually made of metal, and the electrical resistance between the part that is held in the hand and the part that is inserted into the lock is almost zero. Further, as shown in FIG. 2, in a key in which the hand-held portion I3 is made of resin, the resin is an insulator, so the electrical resistance between the hand-held portion I3 and the portion 2 inserted into the lock is infinite.

In this way, the electrical resistance between the part of the key held in the hand and the part inserted into the lock was approximately zero or infinite.

[Problem to be solved by the invention]

When a person gets in or out of a car, etc., if static electricity is generated between the person and the car body due to the friction of the person's clothes, etc., touching the door with your hand will generate sparks, which is very unpleasant, so you may touch it with your key. Because current flows rapidly from the key to the car body ground through the door, sparks often occur not only between the key and the door, but also between your hand and the key, which can be extremely uncomfortable. there were. In addition, the generation of sparks due to static electricity in places such as gas stations is a problem because it may cause gasoline to ignite.The purpose of the present invention is to solve the above-mentioned conventional problems and to prevent the generation of sparks due to static electricity when getting on and off the vehicle due to static electricity. To provide a key structure that does not cause discomfort and does not cause gasoline or the like to ignite by eliminating the generation of sparks due to static electricity.

[Means to solve the problem]

In order to achieve the above object, the present invention configures a part or the entire key of an electrical resistor.

[Effect]

With the above configuration, when a person touches a door lock with a key when getting in or out of a car, the static electricity that flows from the person's body to the key, and from the key to the lock, etc., causes the current to flow slowly instead of suddenly, making it uncomfortable. There is no sensation or spark.

Furthermore, static electricity is eliminated by the current flowing through the resistor.

〔Example〕

Hereinafter, the present invention will be explained based on illustrated embodiments.

Figure 3 shows the part 2 that is inserted into the lock of the key and the part that is held by hand■
4 is connected by a resistor 6. When a current flows due to the electrostatic potential difference, the current does not flow suddenly because it passes through the resistor I6. Therefore, it does not cause discomfort to people or generate sparks. Furthermore, static electricity is eliminated by the flow of current.

FIG. 4 shows a case where the resistor element (8) is mounted between the part (5) that is held by hand and the part (2) that is inserted into the lock. Even with this configuration, the current from the human body passes through the resistor (8), so the effect is the same as in the case of FIG. 3.

FIG. 5 shows a case in which the hand-held part 7 attached to the part 2 inserted into the lock is made of a resistor. Even with this configuration, the part 7 held by the hand exists as a resistor between the hand and the part 2 that is inserted into the lock, and the current due to static electricity does not flow rapidly. works in the same way.

Furthermore, even if the key body 9 is constructed entirely of resistors as shown in FIG. 6, the current will pass through the resistors, resulting in the same effect.

〔Effect of the invention〕

As described above, by constructing a part or the entire key with an electrical resistor, the electric current caused by the static electricity of the human body flows slowly, and the static electricity is eliminated without causing any discomfort. Furthermore, it is safe because no sparks are generated due to static electricity in places such as gas stations.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a conventional key, Fig. 2 is a plan view and a sectional view of a conventional key, Fig. 3 is a plan view of a key of the present invention, and Fig. 4 is a plan view and a sectional view of a key of the present invention. 5 are a plan view and a sectional view of the key of the present invention, and FIG. 6 is a plan view of the present invention. ■...Key body■, 2...The part that is inserted into the lock, 3.
- Part held by hand I, 4... Part held by hand ■5... Part held by hand ■, 6... Resistor I, 7... Part held by hand ■, 8
・・Resistor ■、9・・Key body■

Claims (1)

[Claims] A key characterized in that part or the entire key is made of an electrical resistor.