JP2001025451A - Cleaner hose - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hose through which a current-carrying is possible to a nozzle head for air suction as a hose for a vacuum cleaner equipped with a rotating brush on the nozzle head, and while performing the function, is excellent in the shape retentivity of the hose, and wherein the overall weight of the hose is lighter compared with a conventional hose equipped with a conductive wire to perform energization, and the usage causes less fatigue, and an addition, there is almost no concern for a wire breakage even for a usage over long years. SOLUTION: On the inner peripheral surface side of a synthetic resin pipe wall 1, three pieces of coating wires 2A, 2A... wherein a reinforcing wire 2 made of a hard steel is made a core material, are spirally arranged while keeping a specified interval W. By this constitution, the absolute length of respective reinforcing wires 2, 2... can be made shorter compared with a reinforcing wire of a conventional hose. Also, the electric resistance can be reduced to approx. one half as well, and the reinforcing wires 2, 2... can be used as a power energization wire.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaner hose used by being attached to a vacuum cleaner. More specifically, the present invention relates to a cleaner hose with a reinforcing wire in which a metal reinforcing wire is spirally wound inside a tube wall formed of a synthetic resin material.

[0002]

2. Description of the Related Art The structure of a conventional cleaner hose used in this type of vacuum cleaner is such that the tube wall is formed in a spiral corrugated shape, and the metal reinforcing wire is bare. What is wrapped in the inside of the convex corrugated part, and what is arranged on the inner peripheral surface side of the convex corrugated part in a state covered with resin are known as general ones.

Recently, a vacuum cleaner is shown in FIG.
As shown in, the power of the vacuum cleaner body (C) is turned ON-O.
It is not just a FF operation and air suction, but an operation cylinder
A motor and a rotating brush are attached to the suction nozzle head (N) attached to the tip of (P) to give the rotating brush a rotation suitable for the type of the object to be cleaned, such as a floor or a carpet, or to remove the brush from the floor surface. Vacuum cleaners having a function of efficiently cleaning while changing and adjusting the height are becoming mainstream.

Accordingly, in order to correspond to a vacuum cleaner having such a function, even a cleaner hose having a function of simply turning on and off the power of the cleaner body (C) is used. Instead, it must be provided with a function that allows the ON / OFF operation of the rotary brush motor mounted on the suction nozzle head (N) at the tip of the operating cylinder in the hand-held portion of the operating cylinder (P). For this reason, as shown in FIG. 6, the structure of the hose (H) is changed to a reinforcement for retaining the shape of the hose (H) and an energizing line for turning on and off the power of the cleaner body (C). (2)
Separately from (0), a covered wire (22) integrally insulated and in parallel with a conductive wire (21) for power supply is spirally wound in a double pitch shape inside the tube wall (23). The structure was wired.

[0005]

However, in the case of a cleaner hose having a conductive wire (21) for supplying power to the hose separately from the reinforcing wire (20) of the hose as described above, the entire hose In addition to the problem that the weight becomes heavy, there is a danger that the conductive wire (21) will not be able to withstand the use for months and will be disconnected.

Accordingly, an object of the present invention is to solve the problems of the conventional hose (H), and to provide a vacuum cleaner having a rotary brush in the suction nozzle head (N) as described above. As a hose that can supply power to the suction nozzle head (N), it has excellent hose shape retention, and the overall weight of the hose is reduced by the use of a conductive wire for conventional power supply. It is an object of the present invention to provide a hose which is lighter and can be used with less fatigue than the above-mentioned hose (H), and has a very low risk of disconnection even when used for many months.

[0007]

In order to solve the above-mentioned problems, a cleaner hose according to the present invention uses a reinforcing wire made of hard steel wire as a power line without using a conductive wire. On the inner peripheral surface side of the pipe wall, three hard steel wire reinforcing wires are spirally arranged at predetermined intervals.

Further, the synthetic resin pipe wall may be formed by spirally winding a band material having a predetermined width, and bonding the side edges thereof to each other at a portion covering the reinforcing wire. It has a flat part that fills the pitch, and a part that covers the reinforcing wire,
The thickness of the flat portion is formed to be thicker than the thickness of the portion covering the reinforcing wire.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an outer shape in which a part of a hose is cut off, FIG. 2 shows an enlarged cross-sectional shape of a tube wall, FIG. 3 shows an exploded means for forming a hose, and FIG. It is the figure which showed the state which connected the connection cylinder to both ends.

The hose (H) according to the present embodiment is made of flexible polyvinyl chloride (PVC), polyethylene (PE),
A pipe wall (1) having a spiral corrugated shape is formed using polypropylene (PP), another soft synthetic resin material, or a material obtained by mixing rubber with these materials.

On the inner peripheral surface side of the tube wall (1), a reinforcing wire (2) made of a hard steel wire made of a steel wire, a piano wire, or a hard wire obtained by plating these wires with rustproofing is used. Three coated wires (2A) (2A)... Each of which is covered with a coating (2a) made of a material obtained by blending, for example, conductive calcium carbonate with a synthetic resin such as semi-rigid PVC or a synthetic resin such as semi-rigid PVC; Predetermined intervals
(W), and the space between the preceding winding line and the succeeding winding line is also spirally wound with a predetermined space (W).

The tube wall (1) is, as shown in FIG.
A strip material (3) having a width corresponding to approximately three pitches of the covered wires (2A) (2A)... Is spirally wound and its side edges (3c) (3
c) The two are polymerized and bonded at a portion covering the covered wire (2A). The band member (3) has three flat portions (3a) (3a)... And two concave portions (3b) (3b) having a U-shaped cross section, and these flat portions are spirally wound. (3a) (3a)... Fill the gaps between the covered wires (2A) (2A).
(3b), (3b)... Cover the covered wires (2A), (2A).

[0013] The pipe wall (1) has a flat portion.
The thickness of (3a) is formed to be thicker than the thickness of the concave portion (3b), so that the flat portions (3a) (3a)... Filling the pitch between the covered wires (2A) (2A). It becomes difficult, the pipe wall (1)
Can always be kept almost flat, and the air suction resistance can always be reduced to prevent windage damage.

Next, a method of manufacturing the hose (H) will be described. The three covered wires (2A) (2A)... Similarly, a predetermined interval (W) is maintained at a predetermined interval (W) with respect to a subsequent winding line, and spirally wound, and an adhesive is applied to an upper surface of each of these lines. On the other hand, in the strip material (3) extruded from the synthetic resin extruder, the flat portions (3a) (3a)... Fit between the pitches of the covered wires (2A) (2A). Is spirally wound on the covered wires (2A) (2A)... So as to cover the covered wires (2A) and (2A), and the side edges (3c) and (3c) are covered with the covered wire (2A).
Are polymerized at the top so as to cover them, and are adhered to each other with an adhesive.

When the cleaner hose (H) thus manufactured is used as a hose for a vacuum cleaner, as shown in FIG. 4, the connecting cylinders (6) and (6) are connected to both ends of the hose (H). 7) is connected to form a structure integrally formed,
Connect the connection cylinder (7) at one end to the suction cylinder of the cleaner body (C).
(E), and at the same time, the electric connector (7a) is inserted and connected, and the connecting cylinder (6) at the other end is inserted and connected to the insertion cylinder (D) of the operating cylinder (P), and at the same time, the electric connector ( 6a) is inserted and connected.

Thus, as shown in FIG. 5, the cleaner hose (H) and the operating cylinder (P) are connected through the connecting cylinders (6) and (7) on both sides, as shown in FIG. By connecting between the vacuum cleaner body (C) and the suction nozzle head
(N) to form a series of air paths. Further, the hardening wire (2) (2),...
An N-OFF power supply circuit and a power supply path between a power supply of the cleaner body (C) and a motor provided in the suction nozzle head (N) are formed.

It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that many modifications and changes can be made to the above-described embodiment within the scope of the present invention.

[0018]

As is clear from the above description, since the cleaner hose of the present invention uses three hard steel wire reinforcing wires, the absolute length of each hard steel wire reinforcing wire is used. Can be made shorter than the reinforcing wire of the conventional hose, and the electric resistance can be almost halved. For this reason, it is possible to use a hardened steel wire reinforcing wire as a power supply wire, and use the reinforcing wire to supply power to a motor provided in an intake nozzle head. . In addition, since the hose is shaped using three reinforcing wires, the hose is excellent in shape retention and is not easily deformed by an external force. In particular, the conventional power conducting wire is provided. A remarkable effect that the weight of the hose can be considerably reduced as compared with the hose can be expected.

Further, since only a hard steel wire is used as compared with a conventional hose using both a reinforcing wire and a conductive wire, the wire is sufficiently used for many months without any risk of disconnection. In addition, in manufacturing, it is only necessary to arrange three reinforcing wires and spirally wire them. Therefore, manufacturing can be simplified and speeded up, so that manufacturing cost can be reduced. It is possible to expect the effect that the tire is less likely to cause fatigue due to its light weight and easy to use.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of a hose according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of the pipe wall portion.

FIG. 3 is an exploded explanatory sectional view of the pipe wall.

FIG. 4 is an intermediate front view showing a state in which connection tubes are connected.

FIG. 5 is a side view showing a state of attachment to the vacuum cleaner.

FIG. 6 is a partially cutaway front view of a tube wall portion showing a conventional structure.

[Explanation of symbols]

 (1) Pipe wall (2) Reinforcing wire made of hard steel wire (3) Strip (3a) Flat part (3b) Depression (H) Hose

Claims (3)

[Claims] 1. A cleaner hose comprising three hard steel wire reinforcing wires spirally arranged at predetermined intervals on the inner peripheral surface side of a synthetic resin pipe wall. 2. The cleaner hose according to claim 1, wherein the synthetic resin pipe wall is formed by spirally winding a band material having a predetermined width, and by bonding the side edges thereof to each other at a portion covering the reinforcing wire. 3. The synthetic resin pipe wall has a flat portion that fills the pitch between the reinforcing wires, and a portion that covers the reinforcing wires,
3. The cleaner hose according to claim 1, wherein a thickness of the flat portion is formed to be thicker than a thickness of a portion covering the reinforcing wire.