JPH075299U - Antistatic device - Google Patents

Abstract

(57) [Abstract] [Purpose] The nylon fuel hose is prevented from being electrified due to friction with the fuel flowing inside, and sparks are prevented from flying. Prevent outbreaks. [Structure] A nylon fuel filler hose 3 that connects a fuel tank nipple 1 and a fuel filler neck 2 of a vehicle is covered with a conductive heat-shrinkable rubber-like tube 4 and brought into close contact by heating. 6 is connected to the ground wire 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a resin hose attached to an in-vehicle engine or the like that is prevented from being charged with electricity and prevents an untimely disaster.

[0002]

[Prior art]

 In conventional vehicles, nylon is often used as the material for various fuel hoses associated with vehicle-mounted engines, such as fuel filler hoses. However, due to friction with the fuel flow inside, these resin fuel hoses are used. Since static electricity is generated on the surface of the fuel hose, sparks may be generated from the surface of the charged resin fuel hose in a dusty place such as a mine, which is not preferable for safety.

[0003]

[Problems to be solved by the device]

 The present invention is intended to reliably prevent the resin hose from being charged with a simple structure and prevent an unexpected accident from occurring.

[0004]

[Means for Solving the Problems]

 To achieve this object, an antistatic device according to the present invention has a conductive heat-shrinkable rubber tube covered with a resin hose and an earth mechanism having one end connected to the tube.

[0005]

[Action]

 Therefore, even if static electricity is generated in the resin hose due to friction such as fluid such as fuel flowing in the resin hose or powder, the resin hose is covered with the earth and grounded. Immediately discharged by the electrically conductive, heat-shrinkable rubber tube, the resin hose is reliably prevented from being charged, and the risk of sparks flying from the resin hose is easily prevented.

[0006]

【Example】

 Hereinafter, embodiments of the present invention shown in the drawings will be specifically described. The nipple 1 of the fuel tank mounted on the vehicle and the nylon fuel filler neck 2 are connected by a nylon fuel filler hose 3, and ethylene propylene rubber or the like is attached to the fuel filler neck 2 and the fuel filler hose 3. It is covered with a heat-shrinkable rubber-like tube 4 containing carbon or metal powder as a main component and having conductivity, and shrinks by heating to be in close contact with the outer surfaces of the fuel filler neck 2 and the fuel filler hose 3. On the other hand, the metal plate 5 embedded in the tube 4 and the vehicle body 6 are connected by a suitable ground wire 7.

Therefore, if fuel is injected from the fuel filler neck 2 to refuel the fuel tank, static electricity may be generated in the fuel filler neck 2 and the fuel filler hose 3 due to the fuel flow. The static electricity is immediately guided to the metal plate 5 by the tube 4 and grounded to the vehicle body 6 via the ground wire 7, so that the fuel filler neck 2 and the fuel filler hose 3 are surely prevented from being charged, and in any case. However, since the spark does not fly from the inner and outer surfaces of the fuel filler neck 2 and the fuel filler hose 3, the occurrence of fire can be completely prevented and the safety of the vehicle can be improved.

In addition, if the heat-shrinkable rubber-like tube having conductivity is put on a fuel tank or other resin fuel hose connected to an engine and is brought into close contact with the resin by heating, the resin will be protected. Even if static electricity is generated in the fuel hose manufactured by the internal fuel flow, it is possible to prevent sparks from being generated in the same way by discharging it with the earth mechanism similar to the above. For a resin hose for transporting fluids or powders other than fuel, a heat-shrinkable rubber-like tube having the same conductivity as described above and a grounding mechanism are provided so that the same results as those in the above embodiment can be obtained. It goes without saying that the action and effect can be achieved.

[0009]

[Effect of device]

 In the antistatic device according to the present invention, even if static electricity is generated in the resin hose, it is immediately discharged by the electrically conductive heat-condensing rubber-like tube that is put on the resin hose and grounded. Therefore, the resin hose is reliably prevented from being charged, and the safety can be further improved.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an embodiment of the present invention.

[Explanation of symbols]

 2 Fuel filler neck 3 Fuel filler hose 4 Heat-shrinkable rubber tube 7 Ground wire

Claims (1)

[Scope of utility model registration request] 1. An antistatic device having a conductive heat-shrinkable rubber-like tube covered with a resin hose and an earth mechanism having one end connected to the tube.