JPH07304405A - Handwheel for automobile - Google Patents

Abstract

PURPOSE:To provide a handwheel for an automobile giving no effect to the outward appearance in a car and capable of preventing and electric shock caused by static electricity when a driver gets off the automobile in the normal action. CONSTITUTION:A handwheel ring 13 is fitted to a fixed section 11 via a spoke 12, and the handwheel ring 13 is fixed to a metallic handwheel shaft at the fixed section 11. The handwheel ring 13 is provided with grooves on the outside periphery and inside periphery and high-dielectric constant rubber bodies 16a, 16b protruded from the grooves. The high-dielectric constant rubber bodies 16a, 16b are connected to a metallic core, and the metallic core is connected to the spoke 12. The fixed section 11 and the spoke 12 are made of a metal. Static electricity escapes to the handwheel shaft from the high-dielectric constant rubber bodies 16a, 16b through the metallic core, spoke 12, and fixed section 11 without causing an electric discharge, and the static electricity can be removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle steering wheel.

[0002]

2. Description of the Related Art In a dry vehicle, static electricity is generated by friction with a seat. When a driver charged with static electricity touches the handle of the vehicle body or door while trying to get out of the car, an unpleasant electric shock due to static electricity occurs. As a conventional one for preventing this unpleasant electric shock, there is a static electricity removing sheet made of a high dielectric constant material.

The static electricity removing sheet is used by being attached to a metal part of the vehicle body, and when touched with a finger, the static electricity charged on the human body is passed through the vehicle body to eliminate the static electricity.
Therefore, the unpleasant electric shock due to static electricity can be prevented by touching the static electricity removing sheet before touching the vehicle body or the like.

[0004]

However, in the prior art, in order to prevent electric shock due to static electricity, it is necessary to touch the static elimination sheet before touching the vehicle body.
There were problems that the movement to get out of the car was not smooth, and that the user forgot to touch the antistatic sheet. Moreover, since it is used by being stuck inside the vehicle, there is a problem that it does not look good.

The present invention has been made by paying attention to such a conventional problem, and it is possible to prevent electric shock due to static electricity by getting off the vehicle in a normal operation, and also to affect the appearance inside the vehicle. The purpose is to provide a steering wheel for automobiles that does not give.

[0006]

In order to achieve the above object, a vehicle handle according to the present invention is fixed to a metal handle shaft at a fixed portion, and a handle ring is attached to the fixed portion via spokes. In the steering wheel for automobiles, the handle ring has at least a surface made of a non-conductor, has a groove in the periphery, and has a high dielectric constant rubber body protruding from the groove in the groove, and the handle is provided along the spoke. A conductor for electrically connecting the shaft and the high dielectric constant rubber body is provided.

The high dielectric constant rubber body is preferably made of a material having a relative dielectric constant of 10 or more in order to effectively remove static electricity. The composition of the high dielectric constant rubber body is, for example, 100 parts by weight of chlorobrene rubber, 12 to 20 parts by weight of di (butoxyethoxyethyl) adipate, 30 to 130 parts by weight of titanium, 5 to 20 parts by weight of tin-coated titanium (or white carbon). 30 parts by weight), and 0 to 65 parts by weight of clay.

The handle ring is made of, for example, a non-conductive plastic. However, the handle ring may be formed by sticking a non-conductor on the surface of the conductor or by applying a non-conductor on the surface of the conductor. The groove may be ring-shaped at the periphery of the handle ring, may be one linear shape, may be a plurality of linear shapes arranged in parallel, or may be arranged in series. . The groove may be formed on the outer peripheral edge, the inner peripheral edge, or the side peripheral edge of the handle ring, and thus the high dielectric constant rubber body may be located at any of these positions.

The conductor is made of, for example, metal, conductive rubber, conductive plastic or the like. Some of the conductors may consist of spokes or may penetrate the inside of the spokes. The conductor may be connected to the high-dielectric-constant rubber body and the handle shaft by any method as long as it is electrically and mechanically connected, such as by bonding with a conductive adhesive or tacking.

[0010]

In the vehicle handle according to the present invention, when a driver charged with static electricity touches the high dielectric constant rubber body around the periphery of the handle ring, the static electricity passes through the conductor from the high dielectric constant rubber body without causing discharge. Escape to the metal handle shaft. After touching the high-dielectric-constant rubber body, no discharge occurs even if it touches the handle of the vehicle body or door, and electric shock due to static electricity does not occur.

In general, static electricity is likely to be generated inside a vehicle when the driver tries to get out of the vehicle. At this time, friction is generated between the driver's clothes and the seat, and static electricity is often generated. When a driver tries to get out of a car, the driver generally leaves the driver's seat while supporting the body with a steering wheel ring. Therefore, a general driver can touch the high-dielectric-constant rubber body and remove the electricity by a natural motion of getting off the vehicle.

Although static electricity may be generated during driving of a car, the driver who is driving is holding the handle ring and constantly touching the high-dielectric-constant rubber body to eliminate static electricity, resulting in electric shock due to static electricity. Absent. The high dielectric constant rubber body is
It protrudes from the periphery of the handle ring, making it difficult for the hand holding the handle ring to slip.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of the present invention. As shown in FIG. 1, the steering wheel 10 for an automobile includes a fixing portion 11,
It is composed of spokes 12 and handle rings 13. The fixed portion 11 is made of metal. The fixed portion 11 is fixed to a handle shaft 14 made of metal.

The handle ring 13 is attached to the fixed portion 11 via the spokes 12. The handle ring 13 is made of acrylic acid resin and has grooves 15a and 15b on the outer peripheral edge and the inner peripheral edge. The handle ring 13 has high permittivity rubber bodies 16a and 16b protruding from the grooves 15a and 15b. High dielectric constant rubber body 1
6a and 16b are ring-shaped and are firmly sandwiched between the grooves 15a and 15b.

The composition of the high dielectric constant rubber bodies 16a and 16b is
100 parts by weight of chlorobrene rubber, 20 parts by weight of di (butoxyethoxyethyl) adipate, 130 parts by weight of titanium,
It consists of 20 parts by weight of tin-coated titanium and 40 parts by weight of clay. The relative permittivity of the high dielectric constant rubber bodies 16a and 16b is 70
Is.

Inside the handle ring 13, a ring-shaped metal core is embedded. High dielectric constant rubber body 16
The a and 16b are in contact with and electrically connected to the metal core. The spokes 12 are made of metal and are connected to the metal core of the handle ring 13. Therefore, the high dielectric constant rubber bodies 16a and 16b are electrically connected to the handle shaft 14 via the metal core, the spokes 12, and the fixing portion 11.

Next, the operation will be described. In a dry car in winter, the driver's clothes rub against the seat, and the friction often charges the driver with static electricity of about 1,000 to 10,000 volts. On the other hand, the vehicle body is negatively charged. If the driver touches the metal part of the car body while still being charged with static electricity of 3,000 volts or more, an unpleasant electric shock will occur due to spark discharge.

When a driver charged with static electricity touches the high-permittivity rubber bodies 16a and 16b on the periphery of the handle ring 13, the static electricity does not cause discharge, and the static-electricity rubber body 16 is discharged.
a, 16b to metal cores, spokes 12 and fixing parts 1
Escape through 1 to the handle shaft 14 made of metal.
After touching the high-dielectric-constant rubber bodies 16a and 16b, no discharge occurs even if the handle of the vehicle body or the door is touched, and electric shock due to static electricity does not occur.

Generally, static electricity is likely to be generated inside a vehicle when the driver tries to get out of the vehicle. At this time, friction is generated between the driver's clothes and the seat, and static electricity is often generated. When the driver tries to get out of the car, the steering wheel ring 1
It is common to leave the driver's seat while supporting the body with 3.
Therefore, a general driver can touch the high dielectric constant rubber bodies 16a and 16b to remove the electric charge by a natural motion of getting off the vehicle.

Although static electricity may be generated during driving of a car, a driver who is driving can handle wheel 13
Since it is grasped and is always in contact with the high dielectric constant rubber bodies 16a and 16b, the charge is removed, and electric shock due to static electricity does not occur. The high-dielectric-constant rubber bodies 16a and 16b project from the peripheral edge of the handle ring 13 to prevent the hand holding the handle ring 13 from slipping.

If the high-permittivity rubber bodies 16a and 16b are colored differently from the handle ring 13, the automobile handle 10 can have a unique design.

[0022]

According to the vehicle handle of the present invention, since the high dielectric constant rubber body is provided on the periphery of the handle ring, the high dielectric constant rubber body of the handle ring is touched by the normal operation of the automobile. When getting off, it is possible to prevent electric shock due to static electricity, and since it is not necessary to treat the inside of the vehicle, it does not affect the appearance inside the vehicle.

[Brief description of drawings]

FIG. 1 is a perspective view of an automobile handle according to an embodiment of the present invention.

[Explanation of symbols]

 10 Car Handle 11 Fixed Part 12 Spoke 13 Handle Ring 14 Handle Shaft 15a, 15b Groove 16a, 16b High Permittivity Rubber Body

Claims (1)

[Claims] 1. A handle for an automobile, comprising: a fixed portion fixed to a handle shaft made of metal; and a handle ring attached to the fixed portion via spokes, wherein the handle ring has at least a surface made of a non-conductive material, and has a peripheral edge. A groove having a high dielectric constant rubber body protruding from the groove in the groove, and a conductor electrically connecting the handle shaft and the high dielectric constant rubber body along the spoke, Characteristic automobile handle.