JPS63286122A - Hose for electric cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a vacuum cleaner hose equipped with an electric floor suction device and a remote control switch.

Conventional technology In conventional vacuum cleaners, a hose is connected to the suction side of the vacuum cleaner through a hose connection pipe, and an extension pipe is connected to the tip of the hose through a tip pipe. A floor suction device was connected to the end of the pipe.

Problem to be Solved by the Invention When dust is sucked out with a vacuum cleaner, the air containing the dust passes through the oil inside the vacuum cleaner's hose at a high speed, causing damage to the hose and the hose connection pipe. A friction phenomenon occurred between the end pipe and the inner wall surface, generating static electricity.

However, when the hose is connected to the vacuum cleaner body,
Static electricity generated by friction is grounded to the vacuum cleaner's power line through the connection terminal provided on the hose connection pipe, but when you stop using it and remove the hose connection pipe from the vacuum cleaner, the hose and The remaining static electricity generated on the connecting pipe and the tip pipe moves to the conductor part, which is the connection terminal part of the hose connecting pipe part, and the electric charge on the conductor part becomes high, and if you touch this part, you will receive an electric shock due to static electricity. It felt very unsettling to the user. This phenomenon was caused by the electric shock caused by static electricity because the remote control circuit that operated the power supply for the main body of the sweeper with the switch on the hose had a low voltage of about 24V, so the hose did not have much insulation. However, in the circuit that energizes the electric floor suction device, it is connected to the 10OV power supply, so in order to improve the insulation performance at each part of the hose, we installed the connection terminal part of the hose connection pipe part. The static electricity charge increases,
Therefore, the electric shock is extremely strong, making the user especially unsafe and requiring some kind of countermeasure. However, the solution was extremely difficult.

The present invention solves these conventional problems and provides a vacuum cleaner hose that is easy to use.

Means for Solving the Problems In order to eliminate all of the above-mentioned drawbacks, the present invention provides a hose connection pipe that is connected to one end of the hose and has a structure that allows it to be electrically and structurally connected to the cleaning body. The parts that the user grasps, including the parts that hold the connection terminals, are made of a material with a surface resistivity of 106Ω to 1013Ω.

Function: After using the vacuum cleaner, even if the hose connection pipe section is removed from the vacuum cleaner body and comes into contact with the connection terminal section of the hose connection pipe section, the user will not receive any electric shock due to static electricity. In addition, the insulation properties at the terminal portions can be sufficiently satisfied.

Example The embodiment will be described below with reference to all the attached drawings.

In Figures 1 to 4, 1 is a vacuum cleaner body with a built-in electric blower and a dust collection chamber, 2 is a hose with a built-in hard steel wire 3 and a covered lead wire 4 to which currents of 24V and 100V are applied. , 5
6 is an extension tube with a built-in lead wire to which a current of 100 cm is applied, and 6 is an electric floor suction tool with a built-in electric motor and rotating brush. One end of the hose 5 is connected to an extension pipe 6,
A tip pipe 9 is attached to the front end of the vacuum cleaner body 1, and is equipped with a hand switch 7 for turning on and off the electric floor suction port 6, and a control lever 8 for fully adjusting the suction force. A hose connection pipe 11 is attached to be connected to the provided hose insertion port 1°.

12 is a low voltage connection terminal connected to a 24V low voltage contact 13, which is soldered to the hard steel wire 3 and supplies a 24V current to the suction force control circuit built into the tip vibrator 9. . 14 is a 100V high voltage contact 15
A high voltage connection terminal connected to the crimp terminal 16 and the lead wire 17 connected to the covered lead wire 4 in the hose 2.
The extension pipe 5 is valved to apply a current of 1 ooV to the electric floor suction tool 6. Reference numeral 18 denotes a buckle provided with a locking portion 19 that is detachably engaged with the cleaner body 1, and is biased by a spring 2o. Reference numeral 21 is a lid that covers all the low voltage connection terminals 12 and high voltage connection terminals 14 inserted into the hose connection pipe 11, and 22 is a hose cover that covers the ends of the hose 2 and internal wiring.

In the above configuration, when the vacuum cleaner main body 1 is operated and dirt is sucked in, the air containing dirt components flows rapidly through the inner wall of the hose 2 through the electric floor suction tool 6 and the extension pipe 5. When passing through at wind speed, a friction phenomenon occurs between the hose 2, the hose connection pipe 11, and the inner wall surface of the tip vibrator 9, generating p5 static electricity. However, when the hose is connected to the vacuum cleaner body 1, the static electricity generated due to friction is transferred to the hose connection pipe 1.
It moves to the low voltage connection terminal 13 and high voltage connection terminal 14 portion made of conductive metal provided in 1, and is grounded to the power line of the vacuum cleaner body.

As explained in the conventional example, this phenomenon occurs in the hose part because the remote control circuit that operates the power supply of the vacuum cleaner body with the switch on the hose has a low voltage of about 24V and the insulation performance is not improved very much in the hose part. The generated static electricity is sufficiently discharged into the power line of the vacuum cleaner body, and even when the hose is removed from the vacuum cleaner body, the static electricity does not move to the low voltage connection terminal 12 provided on the hose connection pipe 11, and this part The electric charge was low, so even if you touched it, you would hardly feel an electric shock from static electricity. Shi7t\-/
However, in a hose like the hose of this embodiment, which has a circuit for energizing the 6 parts of the electric floor suction device, it is connected to a 1oO
If the power line of the vacuum cleaner body 1 is not sufficiently discharged and the amount of static electricity inside the hose is extremely high, connect the hose to the vacuum cleaner body 1.
When the hose is removed from the hose, the static electricity inside the hose moves to the conductive parts of the low voltage connection terminal 12 and the high voltage connection terminal 14, and the amount of charge in these parts increases significantly. If you come into contact with this part, the electricity will be discharged through your body and into the earth at once, giving you a very large electric shock due to static electricity, making this a very dangerous vacuum cleaner hose. Therefore, in the hose of this embodiment, the surface specific resistance of the hose connection pipe section is determined by the user, including the parts that hold all of these terminals, such as the low voltage connection terminal 12 and the high voltage connection terminal 14. Value is 106-10
By using a material with 13Ω insulating properties, static electricity generated in the hose part can be efficiently transferred to the terminal part and reliably grounded to the cleaning body, and static electricity generated in the hose connection pipe 11 can be efficiently transferred. It can exhibit various effects such as a small amount. Therefore,
Even if the hose is removed from the vacuum cleaner body, it is difficult for static electricity to collect on the low voltage connection terminal 12 and high voltage connection terminal 14, and the user must always connect the hose when removing it from the vacuum cleaner body. The static electricity transferred to the terminal part of the hose due to gripping the pipe 11 is removed by connecting between the terminal part conductor in the hose and the ground by adjusting the resistance of the hose connection pipe and the resistance of the human body. The electrical charge on the conductor passes through the human body and immediately begins to be dispersed to the earth. At this time, since the surface specific resistance value of the hose connection pipe is 106 to 1013Ω, the current that flows is very small and does not affect the human body, and the potential difference between the human body and the connection terminal is also small, so it is completely due to static electricity. It does not give an electric shock. Furthermore, since the material has electrical properties with a surface resistivity value of 10 6 to 10 15 Ω, the terminal holding portion also has sufficient insulation properties.

In addition, the surface specific resistance value is 10 to 10 Ω, and the insulation property is 9t.
-7. Materials with a value include, for example, thermoplastic resin mixed with an appropriate amount of conductive material such as carbon or carbon fiber, surfactant antistatic agent mixed into resin, or surface coated. is also possible. Other special conductive resin materials can be considered.

Effects of the Invention As is clear from the above embodiments, the present invention provides a material for the hose connection pipe to which the hose is attached that has a surface resistivity value of 1.
By using all composite materials with insulation properties of 06 to 1013 ohms, the static electricity generated in the hose part is efficiently grounded to the power supply of the vacuum cleaner body, and the static electricity noise generated is also reduced. A vacuum cleaner hose that is easy to work with, inexpensive, and can quickly discharge the electrostatic charge accumulated on the parts to the ground without causing an electric shock I'm doing m.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of a connection part of a vacuum cleaner hose showing an example of the flow of the present invention, Fig. 2 is a partially cutaway plan view of the same, Fig. 3 is a perspective view of the same, and Fig. 4 is a FIG. 2 is a perspective view showing the overall configuration. 1... Vacuum cleaner body, 2... Hose, 5... Extension pipe, 6... Electric floor suction tool, 9...・Tip pipe, 11...Hose connection pipe, 12...Low voltage connection terminal, 1
4...High voltage connection terminal. Name of agent: Patent attorney Toshio Nakao and 1 other person11
- Hose seeker pipe 12 - Alternative pressure used and supplied chi 14 - High pressure contact pot 18 - Tail lock Fig. 1 14 - High voltage toilet proximal end chi 14. ◎ 口 口 I Otsu 3 Figure 1 12 - Invasion for fishing voltage 13 - Low pressure finished point 14 - Pressure for first high 15 - Sho pressure boil

Claims (1)

[Claims] One end of the hose has a hose connection pipe that can be connected to the vacuum cleaner body, and the other end has a tip pipe that can be connected to an extension pipe, floor suction device, etc., and the conductor built into the hose. A part of the hose connection pipe is exposed as a connection terminal, etc., and the hose connection pipe has a surface resistivity of 10 in the part that holds the terminal for electrical connection to the vacuum cleaner body and the part grasped by the user. A vacuum cleaner hose characterized by using a material with a resistance of ^6 to 10^1^3 Ω.