JP2000175858A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a hose light-weight, and improve the operability by spirally arranging a plurality of insulating-covering hard steel wires having hard steel wires of different wire diameters, on the hose, and electrically connecting the insulating-covering hard steel wire having a hard steel wire of a small wire diameter to a control circuit. SOLUTION: In a hose 2, two lines each of covering-reinforcing wires A6 and B7 which are equivalent to two kinds of insulating-covering hard steel wires, a total of four lines, are spirally arranged while keeping a specified interval, for a power applying and as a reinforcing wire to reinforce the hose 2 as well, and in addition, the top is covered with a skin tape 8. The covering- reinforcing wires A6 and B7 are alternately arranged, and the covering- reinforcing wire A6 is connected to a floor nozzle 4, and the covering-reinforcing wire B7 is connected to a control circuit respectively, corresponding with a required voltage value. Then, since a hard steel wire a8 of the covering- reinforcing wires A6 and B7, and a small diameter hard steel wire b10 are used, by the mass difference portion of the hard steel wire b10 of which the diameter is made thinner, the hose 2 can be made lighter, and the operability is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner used in ordinary households.

[0002]

2. Description of the Related Art A conventional vacuum cleaner will be described with reference to FIGS.

[0003] A floor nozzle 22 containing a motor (not shown) is connected to one end of the extension pipe 21, and a tip pipe 24 is connected to the other end of the extension pipe 21. The tip pipe 24 has a built-in control circuit (not shown) for controlling the operation of an electric blower (not shown) in the cleaner body 23.

[0004] The hose 26 has at one end thereof the main body 23.
A connection pipe 25 is connected to the air intake port 23a of the air conditioner, and a tip pipe 24 is connected to the other end. The hose 26
As shown in FIG. 6, a plurality of insulating coating reinforcing wires 27 are provided spirally at predetermined intervals to secure the strength of the hose 26 and to energize the floor nozzle 22 and the control circuit. And further covered with an outer tape 28. The insulation-covered reinforcing wire 27 is formed by a hard steel wire 29 and an insulation coating material 30 covering the hard steel wire 29, and the mass of the hose 26 is reduced by the outer tape 2
8, determined by the hard steel wire 29 and the insulating coating material 30.

Normally, the current consumed by the circuit for controlling the operation of the electric blower of the cleaner main body 23 is smaller than the current consumed by the floor nozzle 22.

[0006]

However, in such a conventional vacuum cleaner, hard steel wires 29 having the same diameter are used regardless of the amount of current consumption. That is, the diameter of the hard steel wire 29 of the insulating sheath reinforcing wire 27 connected to the control circuit through which the small current consumption flows, and the diameter of the hard steel wire 29 of the insulating sheath reinforcing wire 27 connected to the floor nozzle 22 through which the large current consumption flows Since the diameter is the same, the hose 26 is thick and heavy, which hinders the reduction of the weight of the hose 26, and also makes the hose difficult to use.

An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a vacuum cleaner having a good operability by reducing the weight of a hose.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a hose in which a plurality of insulated hard steel wires having hard steel wires having different wire diameters are spirally arranged on a hose. Insulating coated hard steel wire having a small hard steel wire is electrically connected to a control circuit, and the thin hard steel wire promotes weight reduction.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION
A main body having a built-in electric blower, a control circuit for controlling the operation of the electric blower, a hand handle having the control circuit built therein, and a hose having one end connected to the main body and the other end connected to the hand handle. A plurality of insulation-coated hard steel wires having hard steel wires having different wire diameters are spirally arranged on the hose;
An insulating coated hard steel wire having a hard wire having a small wire diameter is electrically connected to the control circuit, and the diameter of the hard steel wire of the insulating coated hard steel wire electrically connected to the control circuit is small. The hose can be lightened.

According to a second aspect of the present invention, there is provided a main body having a built-in electric blower, a control circuit for controlling the operation of the electric blower, a hand handle having the built-in control circuit,
A hose having one end connected to the main body and the other end connected to the hand handle, and a floor nozzle connected to the hand handle via an extension tube, wherein the hoses have different wire diameters. An insulation-coated hard steel wire having a hard steel wire is arranged in at least four spirals, and the insulation-coated hard steel wire is electrically connected to the control circuit and the floor nozzle, and the diameter of the hard steel wire is reduced. Then, the hose can be made lighter.

According to a third aspect of the present invention, there is provided a main body having a built-in electric blower, a control circuit for controlling the operation of the electric blower, a hand handle having the built-in control circuit,
A hose having one end connected to the main body and the other end connected to the handle at hand, and an insulating-coated hard steel wire and a synthetic resin reinforcing wire spirally arranged on the hose; Since the steel wire is electrically connected to the control circuit, the use amount of the hard steel wire can be reduced by half and the weight can be reduced.

According to a fourth aspect of the present invention, the amount of resin is reduced and the weight is further reduced by making the synthetic resin reinforcing wire hollow.

[0013]

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described.
This will be described with reference to FIGS.

FIG. 2 shows the whole of the vacuum cleaner, in which a main body 1 of a vacuum cleaner having a built-in electric blower (not shown) for suction.
One end of a hose 2 is connected to the intake port 1a, and a handle 3 having a control circuit (not shown) for controlling the operation of the electric blower is connected to the other end.

A floor nozzle 4 containing a rotating brush (not shown) or an electric motor (not shown) for driving a self-propelled wheel (not shown) is connected to a hand handle 3 by an extension tube 5. As shown in FIG. 1, inside the hose 2, two types of coated reinforcing wires A6 (corresponding to an insulated coated hard steel wire) and a coated reinforcing wire are provided as reinforcing wires for conducting electricity and also for reinforcing the hose 2. B7 (corresponding to an insulated coated hard steel wire) is spirally arranged at a predetermined interval, two in each case, a total of four inclusive, and the upper part is covered with a sheath tape 8.

The coated reinforcing wires A6 and B7 are each formed of a hard steel wire a9, a small-diameter hard steel wire b10, and a hard steel wire coating 11 made of a resin or the like that covers them. The diameter of the small-diameter hard steel wire b10 is smaller than that of the hard steel wire a9.

The reinforcing wire A6 and the reinforcing wire B7 are alternately arranged, and the reinforcing wire A6 is connected to the floor nozzle 4 and the reinforcing wire B7 is connected to the control circuit in accordance with the required current value. I have.

Although the strength is reduced by the use of the small-diameter hard steel wire b10, the strength is supplemented by the hardness and material of the hard steel wire insulating coating 11.

The operation of the above configuration is as follows.
Since the hardened steel wire a8 and the small-diameter hardened steel wire b10 of the coated reinforcing wire A6 and the coated reinforcing wire B7 are used, the hard steel wire b1 having a smaller diameter is used.
The mass difference hose 2 of 0 can be made light, and the operability is improved.

In the case where the floor nozzle 4 is a general floor nozzle having no motor, power supply to the motor is not required, and only two conductive wires are required to exchange signals. At this time, if one of the coated reinforcing wires A6 and B7 is electrically connected to the control circuit, the hardened steel wire a9 of the coated reinforcing wire A6 is thicker than the hardened steel wire b10 of the coated reinforcing wire B7. There is also an effect that the shape-retaining strength of the hose 2 is increased as compared with the case where the coated reinforcing wire B7 having the thin hard steel wire b10 is used.

Embodiment 2 Next, a second embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In the case of a vacuum cleaner that does not use a floor nozzle, only two conductive wires are required. As shown in the figure, a reinforcing wire 12 serving as a conductive wire (corresponding to an insulated hard steel wire) and a reinforcing wire 13 made of a synthetic resin are alternately arranged at predetermined intervals alternately, two wires at a time. It is arranged spirally while keeping it. The strength of the synthetic resin reinforcing wire 13 is balanced with the covering reinforcing wire 12 by the material and hardness.

The operation of the above configuration is as follows.
Since two of the four reinforcing wires use the synthetic resin reinforcing wire 13, the amount of hard steel wire used can be reduced by half, the mass of the hose 2 can be reduced, and the operability is improved. .

Embodiment 3 Next, a third embodiment of the present invention will be described with reference to FIG. In this embodiment, the hollow portion 14 is provided in the synthetic resin reinforcing wire 13 used in the second embodiment, and by providing the hollow portion 14 in the synthetic resin reinforcing wire 13, the section modulus according to the cross-sectional shape is obtained. Is improved, the bending stress is improved, the amount of resin is reduced, and the weight is promoted.

[0025]

According to the first and second aspects of the present invention, one or more of the plurality of insulating coated hard steel wires can be made thinner, so that the mass of the hose can be reduced and the operability is improved. It can provide a vacuum cleaner.

According to the third aspect of the present invention, by using the synthetic resin reinforcing wire, the amount of hard steel wire used can be reduced, the mass of the hose can be reduced, and the operability is good. It can provide a vacuum cleaner.

According to the invention of claim 4 of the present invention, by providing a hollow portion in the synthetic resin reinforcing wire, the strength UP of the synthetic resin reinforcing wire and the mass of the hose can be reduced. A good vacuum cleaner can be provided.

[Brief description of the drawings]

FIG. 1A is a partially cut-away side view of a hose of a vacuum cleaner showing a first embodiment of the present invention. FIG. 1B is an enlarged sectional view of a portion A in FIG.

FIG. 2 is an overall side view of the vacuum cleaner.

FIG. 3 is a hood of a vacuum cleaner showing a second embodiment of the present invention.
Side view

FIG. 4 is a view of a vacuum cleaner housing showing a third embodiment of the present invention.
Side view

FIG. 5 is an overall side view of a conventional vacuum cleaner.

FIG. 6 is a sectional view of a main part of a hose of a conventional vacuum cleaner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Hose 3 Hand handle 4 Electric floor nozzle 5 Extension pipe 6 Insulated reinforcing wire A 7 Insulated reinforcing wire B 8 Outer tape 9 Hard steel wire a 10 Small diameter hard steel wire b 11 Hard steel wire coating 12 Coating Reinforcement wire 13 Synthetic resin reinforcement wire 14 Hollow part

Claims (4)

[Claims] 1. A main body having a built-in electric blower, a control circuit for controlling the operation of the electric blower, a hand handle containing the control circuit, one end connected to the main body and the other end connected to the hand handle. A plurality of insulating coated hard steel wires having hard steel wires having different wire diameters, the insulating coated hard steel wires having a hard wire having a small wire diameter. Is electrically connected to the control circuit. 2. A main body containing an electric blower, a control circuit for controlling the operation of the electric blower, a hand handle containing the control circuit, one end connected to the main body and the other end connected to the hand handle. And a floor nozzle connected to the hand handle via an extension tube, wherein the hose is provided with at least four spirals of an insulated hard steel wire having hard steel wires having different wire diameters. A vacuum cleaner in which the insulation-coated hard steel wire is electrically connected to the control circuit and the floor nozzle. 3. A main body containing an electric blower, a control circuit for controlling operation of the electric blower, a hand handle containing the control circuit, one end connected to the main body, and the other end connected to the hand handle. Having an insulated hard steel wire and a synthetic resin reinforcing wire helically disposed on the hose, and electrically connecting the insulated hard steel wire and the control circuit. Vacuum cleaner. 4. The reinforcing wire made of synthetic resin is hollow.
Vacuum cleaner as described.