JP5946660B2 - Flexible hose - Google Patents

Description

The present invention relates to a flexible hose made of a synthetic resin excellent in flexibility. In particular, the present invention relates to a flexible hose provided with a conducting wire for transmitting electric power and signals.

The flexible hose rich in flexibility is used in, for example, a vacuum cleaner, various suction devices, a device that pumps or sucks gas, liquid, powder, granular material, and the like. If these flexible hoses are provided with a conducting wire, an electric signal or electric power can be sent between both ends of the hose, which is convenient.

As a flexible hose provided with a conducting wire, for example, a hose disclosed in Patent Document 1 is known. In Patent Document 1, a hose wall is formed in a substantially cylindrical shape with a soft resin, a spiral reinforcing body formed of a hard resin is integrated on the outer periphery of the hose wall, and a lead wire is provided at a predetermined position inside the spiral reinforcing body. A hose for a vacuum cleaner with a built-in is disclosed. And according to the said hose for vacuum cleaners, it is disclosed that ventilation loss decreases and it can reduce in weight.

JP 2006-25807 A

However, in the flexible hose in which the conductive wire is incorporated in the spiral reinforcing body as described in Patent Document 1, when the number of the conductive wires is changed, the number (strip number) of the spiral reinforcing body is changed. Or a mold for extruding the spiral reinforcing body together with the conductive wire needs to be corrected, and there is a problem that the degree of freedom in changing the number of conductive wires is low.

Moreover, when providing a conducting wire in a flexible hose, it is necessary to fix a conducting wire so that the flexibility of a hose may not be impaired. In addition, if the lead wires are not sufficiently fixed, the lead wires may be rubbed and the insulation between the lead wires may be damaged, or abnormal noise may occur due to contact / separation between the lead wires and the hose wall. It needs to be firmly fixed to the hose.

Accordingly, an object of the present invention is to provide a flexible hose that has a high degree of freedom in setting the number of conducting wires, is excellent in flexibility, and has the conducting wires firmly fixed.

As a result of intensive studies, the inventor has found that the above problem can be solved by forming a spiral vacancy in the hose body and arranging a lead wire together with the foamed resin strip in the vacant chamber. The present invention has been completed.

The present invention relates to a synthetic resin flexible hose having a conductive wire, a hose body of a flexible hose, spiral air chamber is formed, Check inside, one Check In contrast, a plurality of conducting wires are disposed in a non-adhered state, and a foamed resin strip is disposed in the vacant chamber portion together with the conducting wires in a non-adhering state . It is a flexible hose arrange | positioned so that conducting wire may be separated on both sides of a foaming resin strip (1st invention).

In the first invention, it is preferable that the two conducting wires are arranged apart from each other in the hose axial direction ( second invention). In the first invention, it is preferable that at least a part of the conducting wire is disposed along the end in the hose axial direction of the spiral void ( third invention).

Furthermore, in the first invention, it is preferable that the two conducting wires are arranged apart from each other in the hose radial direction ( fourth invention).

According to the flexible hose of the present invention (first invention), a flexible hose having a high degree of freedom in setting the number of conducting wires and excellent flexibility and having the conducting wires firmly fixed can be obtained. In particular, it is possible to reliably prevent the two conductive wires arranged separately from each other.

Still further, when as the second invention can hoses and compact. Furthermore, in the case of the third invention, the protective effect of the conducting wire disposed along the hose axial direction end of the spiral vacancy is enhanced.

Moreover, when it makes it like the 4th invention, the effect which prevents a conducting wire mutually contacting becomes high especially.

It is a partial cross section figure which shows the structure of the flexible hose of 1st Embodiment of this invention. It is a partial cross section figure which shows the structural example of the hose main body which comprises a flexible hose. It is a partial cross section figure which shows the structure of the flexible hose of 2nd Embodiment of this invention. It is a figure which shows the other example of arrangement | positioning of the conducting wire and foaming resin strip in the empty room of a hose main body.

Embodiments of the present invention will be described below with reference to the drawings. The present invention is not limited to the individual embodiments shown below, and can be carried out by changing the form. FIG. 1 shows a partial cross-sectional view of a flexible hose according to a first embodiment of the present invention, where the upper side of the figure is a cross-section of the hose wall and the lower side is a hose appearance shape. The flexible hose H is, for example, a flexible hose that can be used as a pipe of a suction part in a device that sucks water and air in a mixed state. The flexible hose H is provided with conducting wires 2 and 2, and electrical signals can be transmitted and electric power can be supplied by the conducting wires.

The flexible hose H of the first embodiment is configured to include a hose body 1 composed mainly of synthetic resin, conducting wires 2 and 2, and a foamed resin strip 3. As shown in FIG. 2, the hose body 1 made of a synthetic resin is formed with a spiral vacant chamber C along the hose wall. In the flexible hose H, a plurality of (two in the present embodiment) conducting wires 2 and 2 are disposed in the vacant chamber C in an unbonded state. Inside the vacant chamber C, a foamed resin strip 3 is disposed together with the conducting wires 2 and 2.

The synthetic resin hose body 1 includes an inner hose wall (inner wall) 11, a hard resin reinforcing body (reinforcing body) 12, and an outer hose wall (outer wall) 13. The hose body 1 is typically molded to have a diameter of about 10 to 100 mm. In the present embodiment, a spiral vacant chamber C is formed surrounded by the outer wall 13, the inner wall 11, and the reinforcing body 12.

The inner hose wall 11 is a portion formed in a substantially cylindrical shape by a thin film strip of a soft synthetic resin, and constitutes an inner peripheral surface of the hose. Hereinafter, the inner hose wall is simply referred to as an inner wall. In the present embodiment, the inner wall is formed by winding a tape-like soft synthetic resin thin film strip in a spiral shape so that both ends thereof are overlapped with each other, and bonding (fusion) and integrating the overlapped portions. 11 is configured.

On the outside of the inner wall 11, a hard resin reinforcing body 12 is spirally wound and integrated. Hereinafter, the hard resin reinforcing body is simply referred to as a reinforcing body. In the present embodiment, the inner wall 11 and the reinforcing body 12 are integrated by welding. The reinforcing body 12 is made of a resin material that is harder than the soft resin material that forms the inner wall 11 and the outer wall 13, and functions to maintain the cylindrical cross section of the hose body 1.

The reinforcing body 12 is wound and integrated in a spiral shape in a string-like form extruded in a predetermined cross section. The cross-sectional shape of the reinforcing body 12 can be appropriately determined according to the form of the inner wall 11 and the outer wall 12. In the present embodiment, an example using a solid cross-section reinforcing body is shown, but the reinforcing body may have a hollow cross-section.

The outer hose wall 13 is a portion formed in a spiral shape having a substantially cylindrical surface by a thin film strip of soft synthetic resin, and constitutes a part of the outer peripheral surface of the hose. Hereinafter, the outer hose wall is simply referred to as an outer wall. In the present embodiment, the outer wall 13 is formed by winding a thin film strip of a tape-like soft synthetic resin in a spiral shape so as to straddle the reinforcing body 12. The thin film strip constituting the outer wall 13 is spirally wound so that both end portions thereof are superimposed on the shoulder portion of the reinforcing body, and the overlapping portions are bonded (welded). As a result, the outer wall 13 is provided substantially parallel to the inner wall 11 at a predetermined distance from the inner wall 11.

A space surrounded by the inner wall 11, the outer wall 13, and the reinforcing body 12 is a spiral vacancy C. The vacant chamber C is formed so that its cross section is sufficiently larger than the cross section of the conducting wire 2 (preferably the ratio of the cross sectional areas of the two is 5 times or more).

The soft synthetic resin constituting the inner wall 11 and the outer wall 13 of the hose is not particularly limited, but a relatively soft thermoplastic resin that can provide the flexibility of the hose can be used, and in particular, a soft vinyl chloride resin ( PVC resin), ethylene vinyl acetate resin (EVA resin), low density polyethylene resin (LDPE), thermoplastic elastomer and the like. A rubber material may be used as the soft synthetic resin. In this embodiment, a soft vinyl chloride resin is used.

As a material constituting the reinforcing body 12, a relatively hard synthetic resin can be used. In particular, a thermoplastic resin such as a hard vinyl chloride resin (PVC resin), a polypropylene resin (PP), a high density polyethylene resin (HDPE), or the like. Can be suitably used. In this embodiment, a hard vinyl chloride resin is used.
Since the inner wall 11, the outer wall 13, and the reinforcing body 12 are integrated by adhesion (welding), it is preferable to select materials of these members from materials that can be bonded to each other or materials that can be welded.

In the vacant chamber C, a plurality of conducting wires 2 and 2 are arranged in an unbonded state. That is, the conducting wires 2 and 2 are arranged in a spiral with respect to the hose body 1. The electric wire 2 can supply electric power or transmit an electric signal between one end and the other end of the flexible hose H. Conductor 2 includes a metal wire such as a copper wire or a stainless steel wire, a metal braided wire, a metal stranded wire, a resin-coated conductor (such as an enameled wire or a resin-coated lead wire), a signal cable in which a plurality of conductors are bundled, etc. Can be used. As the conducting wire, a wire made of a conductive resin material can also be used.

In the present embodiment, resin-coated lead wires are used as the conductive wires 2 and 2. When a resin-coated conductor is used as the conductor 2, it is possible to select the coating resin material so that it is a non-adhesive and non-welded material for the hose body 1. This is preferable for adhesion. The conductor covering material may be selected from materials that can be bonded or welded to the constituent material of the hose body 1, and in that case, the conductor and the hose wall may be made non-bonded by a device such as a manufacturing method. .

Inside the vacant chamber C, the foamed resin strip 3 disposed together with the conducting wires 2 and 2 is made of a soft resin foam formed in a cross section that substantially matches the cross-sectional shape of the spiral vacant chamber C. It is a strip and is arranged spirally with respect to the hose body 1. The foamed resin strip 3 may be bonded and integrated with the outer wall 13, the inner wall 11, and the reinforcing body 12, but may be non-bonded. If non-bonded, the flexibility of the hose can be further increased. From the viewpoint of securely fixing the conducting wire 2, the foamed resin strip 3 is prepared in a shape that substantially matches the shape of the spiral vacant chamber C or a shape that is larger than the shape of the vacant chamber C. 3 and the wall surface of the vacant chamber C are preferably arranged so that there is not much gap between them, that is, the vacant chamber C is filled with the foamed resin strip 3.

The conducting wire 2 is disposed in the vacant chamber C together with the foamed resin strip 3, so that the conducting wire 2 is fixed at a predetermined position in the vacant chamber C. From the viewpoint of securely fixing the conductive wire 2, the foamed resin strip 3 is compressed in the portion where the foamed resin strip 3 is in contact with the conductive wires 2, 2 in a state where the foamed resin strip 3 is disposed in the empty space C together with the conductive wires 2, 2 It is preferable to set the shape of the foamed resin strip 3 so that the conductor is pressed by the elasticity of the foamed resin strip.

The soft resin foam constituting the foamed resin strip 3 is not particularly limited, and a wide range of soft resin foams such as a closed cell structure and an open cell structure can be used. For example, polyurethane resin or polyethylene resin can be used as the resin material of the foam. In this embodiment, a crosslinkable polyethylene resin foam having a closed cell structure is used.

Moreover, in this embodiment, the inside of the empty room C is arrange | positioned so that two conducting wires may be separated on both sides of a foamed resin strip. That is, the conducting wires 2 and 2 are disposed so as to be located on the opposite sides of the foamed resin strip 3. Thus, determining the arrangement of the conducting wire and the foamed resin strip so that at least two of the conducting wires are separated by the foamed resin strip prevents contact between the conducting wires, and causes poor insulation between the conducting wires. From the viewpoint of sure prevention, it is preferable.

Furthermore, in the present embodiment, the two conducting wires are disposed so as to be separated in the axial direction of the hose. And in this embodiment, two conducting wires are arrange | positioned at the hose axial direction edge part (namely, part adjacent to the reinforcement body 12 in this embodiment) of the empty room C. FIG. Such a form is also a preferred embodiment.

The manufacturing method of the flexible hose H of the said embodiment is demonstrated. The flexible hose H is manufactured by forming the hose body 1 by the following manufacturing method called a so-called spiral molding method, and arranging the lead wire 2 and the foamed resin strip 3 in the empty space C of the hose body. can do.

Resin materials constituting the inner wall 11, the reinforcing body 12, and the outer wall 13 are extruded from different extruders into a predetermined cross-section in a semi-molten state, and are respectively formed as a tape T1, a reinforcing body precursor R, and a tape T2 on a hose forming shaft. It can be supplied. On the other hand, a foamed strip T3 obtained by molding and slitting a foamed resin material to be the foamed resin strip 3 in a tape shape with a predetermined cross section in advance is prepared and can be supplied to the hose molding shaft. In addition, a necessary number of conductors to be the conductors 2 and 2 are prepared and supplied to the hose forming shaft.

Each of the strips that can be supplied is spirally wound around a known hose forming shaft to form a flexible hose H. First, the tape T1 is wound spirally so that both side edges overlap, and the overlapped portion is welded to form the inner wall 11. Subsequently, the reinforcing body precursor R is spirally wound around the outer periphery of the inner wall 11, preferably on the portion where the tape T <b> 1 is overlapped, so that the reinforcing body 12 is obtained. At this time, the inner wall 11 and the reinforcing body 12 are welded at the bottom of the reinforcing body. Subsequently, the conductive wires 2 and 2 are spirally wound around the space between the reinforcing bodies 12 adjacent to each other, and the foamed strip T3 is spirally wound, so that the conductive wires 2 and 2 and the foamed resin strip 3 are predetermined. It arrange | positions in the position.

Subsequently, the tape T2 is spirally wound to form the outer wall 13 so that both side edges thereof overlap with the shoulders of the reinforcing body 12, that is, straddle the reinforcing bodies adjacent to each other. At this time, the outer wall 13 and the reinforcing body 12 are welded together at the shoulder of the reinforcing body.
Thereafter, the entire hose is cooled. By performing the above process continuously on the hose forming shaft, the flexible hose H is continuously formed on the hose forming shaft.

In the above manufacturing method, the manufacturing method using the welding of the resin has been described. However, an adhesive may be used to integrate the members. In the case of using an adhesive, the adhesive may be appropriately applied to a portion to be bonded.

The operation and effect of the flexible hose of the present invention will be described.
In the flexible hose H of the present invention, since a plurality of conductors are arranged in the spiral vacant chamber C provided in the hose body 1, the number of conductors can be obtained without changing the structure of the hose body 1. The degree of freedom for setting the number of conductors is high. That is, when it is desired to increase the number of conductive wires, the configuration of the tape T1, the reinforcing body precursor R, the tape T2 described in the above manufacturing process, and how to wrap around the hose forming shaft are hardly changed. It is possible to change the number of conductors by simply changing the conductors or foamed resin strips supplied to the hose forming shaft. From the viewpoint of increasing the degree of freedom in setting the number of conducting wires, the cross-sectional area of the vacant chamber C is preferably 5 times or more, and particularly preferably 10 times or more of the cross-sectional area of the conducting wire 2.

Further, in the flexible hose H, the hose wall where the empty chamber C is provided, that is, the inner wall 11 and the outer wall 13 are portions that contribute to the flexibility of the hose. Since the conductors 2 and 2 are disposed in the empty space C in a non-bonded state, the conductors 2 and 2 are unlikely to lower the flexibility of the hose, and the flexible hose H can be made highly flexible.

Further, in the flexible hose H, the foamed resin strip 3 is disposed in the vacant chamber C together with the conducting wires 2 and 2, so that the conducting wires 2 and 2 are separated from the vacant chamber C by the foamed resin strip 3. The lead wires 2 and 2 are fixed at predetermined positions. If the conducting wires 2 and 2 are fixed at predetermined positions, the conducting wire 2 and the hose body 1 come into contact / separate to generate an abnormal noise, or the separated conducting wires rub against each other, so It is prevented that the insulation is defective.

And if it arrange | positions so that at least 2 conducting wire among the conducting wires may be separated on both sides of a foamed resin strip like the said embodiment, those separated conducting wires may rub against each other. It is surely prevented. Then, the insulation coating of the conductive wire can be eliminated or a coating with a simple configuration can be achieved, which is effective for making the flexible hose H compact and lightweight.

Further, as in the above-described embodiment, if the conductors arranged so as to be separated by sandwiching the foamed resin strip are arranged so as to be separated in the hose axial direction, the structure of the hose is radiused. It becomes possible to reduce the thickness in the direction, and is particularly effective for making the hose H compact (smaller diameter).

Further, as in the above-described embodiment, if at least a part of the conducting wire is arranged along the end portion in the hose axial direction of the spiral vacant chamber C, the conducting wire is arranged at the location. The protective effect of the conductor is enhanced. That is, when the flexible hose H is used, the hose body 1 may be damaged by a blade or by abrasion. Even in such a case, the hose axial direction of the empty chamber C The portion adjacent to the end (the portion of the reinforcing body 12 in the first embodiment) has a structure in which the structure of the hose body is tightly packed in the hose radial direction, and damage due to blades and wear is suppressed. It is easy to be done. Therefore, if a conducting wire is disposed at the end of the vacant chamber C in the hose axial direction, breakage of the conducting wire can be suppressed, and the protective effect of the conducting wire is enhanced. Furthermore, from the viewpoint of enhancing the protective effect of the conducting wire, it is preferable to configure the hose body so that the reinforcing body is adjacent to the end portion in the hose axial direction of the vacant chamber C as in the present embodiment.

The present invention is not limited to the above embodiment, and can be implemented with various modifications. Other embodiments of the present invention will be described below. However, in the following description, portions different from the above embodiment will be mainly described, and the same portions will be denoted by the same reference numerals and description thereof will be omitted. Further, the embodiments described below can be implemented by combining some of them or replacing some of them.

In FIG. 3, the flexible hose H2 of 2nd Embodiment of this invention is shown. Compared to the first embodiment shown in FIG. 1, the flexible hose H <b> 2 of the present embodiment has a specific configuration of the hose body 4, a specific arrangement of the conducting wire 2 and the foamed resin strip 3 in the empty room, and the like. Although it is different, a spiral vacancy is formed in the hose body 4, a plurality of conductors are arranged in an unbonded state in the vacant chamber, and a foamed resin strip is arranged in the vacant chamber together with the conductors The point is the same. The flexible hose H2 of the present embodiment can also be manufactured by the same manufacturing method as the flexible hose of the first embodiment.

In the present embodiment, the hose body 4 is configured such that a reinforcing body 42 made of a hard resin is spirally embedded in a soft hose wall 41 made of a soft resin. The soft hose wall 41 is provided with a spiral continuous vacant space at a portion between the reinforcing bodies 42. Thus, as the hose body in the present invention, various types of hoses can be used as the hose body as long as the vacant space is provided spirally. And especially when the circumference | surroundings of a spiral vacancy are comprised with soft resin, the softness | flexibility of a hose is improved and it is preferable. In addition, it is not essential that the hose body is provided with a reinforcing body.

The arrangement of the conducting wire 2 and the foamed resin strip 3 in this embodiment will be described. In this embodiment, three conducting wires 2a, 2a and 2b are arranged in a spiral vacant chamber. The foamed resin strip 3 is disposed so as to substantially fill the spiral vacant space, and the conductive wire is sandwiched and fixed between the wall surface of the vacant space and the foamed resin strip 3. Of the conducting wires, two wires 2 a and 2 a are arranged on the hose outer side than the foamed resin strip 3, and one of the conducting wires 2 b is arranged on the hose inner side than the foamed resin strip 3. That is, at least two (2a, 2b) of the conducting wires are arranged in the hose radial direction so as to be separated with the foamed resin strip interposed therebetween. Moreover, the three conducting wires 2a, 2b, and 2a are arranged so that the positions in the hose axial direction are different from each other.

When the conductors (2a, 2b) are arranged so as to be separated in the hose radial direction across the foamed resin strip 3 as in this embodiment, the conductors move in the empty chamber and rub against each other. Such a situation can be almost completely prevented, and the lead wire can be fixed more reliably.

In FIG. 4, the other example of arrangement | positioning of the conducting wire and foamed resin strip in the spiral void of a hose main body is shown. In FIG. 4, the detailed structure of the hose body is simplified in illustration, and mainly the hose wall portion of the hose body, the empty space provided in the hose body, the arrangement of the conductive wire and the foamed resin strip The upper side of the figure is shown to be the hose outer side. In FIG. 3 and FIG. 4, there is a gap between the wall surface of the vacant room and the conductive wire and the foamed resin strip, but this is to make the drawing easier to see. Such a gap may or may not exist as long as the conducting wire is fixed.

In the embodiment shown in FIG. 4 (a), the conductors 2 and 2 are all arranged outside the foamed resin strip 3 inside the spiral vacancy.
Even if the conducting wires 2 and 2 are all disposed outside the foamed resin strip 3, even if the hose wall (hose inner wall) located on the inner peripheral side of the hose is made of thermoplastic resin Further, it is possible to prevent the conductive wire from biting into the soft inner wall of the hose when manufacturing the hose, and to improve the manufacturing efficiency of the hose and the quality of the hose.

  Moreover, in this embodiment, it arrange | positions so that the conducting wires 2 and 2 located outside the foamed resin strip 3 may bite into the foamed resin strip 3 while elastically deforming the foamed resin strip 3. 2 and 2 are not easily displaced in the hose axial direction. The hose having such a structure is manufactured by applying tension to the conductors 2 and 2 when the conductors 2 and 2 are wound outside the foamed resin strip 3 when the flexible hose is manufactured. can do.

In the embodiment shown in FIG. 4 (b), one of the two conductors is disposed outside the foamed resin strip 3 and the other is disposed inside the foamed resin strip 3 inside the spiral vacancy. Yes. As described above, the arrangement of the conducting wire and the foamed resin strip in this manner is particularly effective in preventing contact between the conducting wires.

In the embodiment shown in FIG. 4C, the three conductors 2, 2, 2c and the two foamed resin strips 3, 3 are alternately arranged in the hose axial direction inside the spiral vacancy. Is arranged. Also in the present embodiment, it is possible to obtain the effects as provided in the first embodiment. Further, in the present embodiment, one of the conducting wires 2c is fixed so as to be sandwiched between the foamed resin strips 3 and 3 in the hose axial direction. By adopting such a configuration, the lead wire 2c sandwiched between the foamed resin strips 3 and 3 can be fixed so as not to come into contact with the hose body. In particular, it can be effectively prevented.

In the embodiment shown in FIG. 4 (d), the four conducting wires 2, 2, 2c, 2c and the three foamed resin strips 3, 3, 3 are alternately arranged inside the spiral vacancy. Is arranged. Further, two wires 2c and 2c among the conducting wires are fixed so as to be sandwiched between the foamed resin strips 3 and 3 in the hose radial direction. Also in this embodiment, the effect as provided in the embodiment of FIG. 4C can be obtained. That is, when the conducting wire is sandwiched between the foamed resin strips, the sandwiching direction may be either the hose axial direction or the hose radial direction.

In the description of the above embodiment, in the flexible hose of the present invention, the description has been made centering on the case where the empty chamber C provided in the hose body is provided in a single spiral shape, but the present invention is not limited thereto. The hose body may be provided with a plurality of (for example, two or three) spirals in the hose body. In addition, when vacancies are provided in multiple strips, not all vacancies must be provided with conductors and foamed resin strips, and there are vacancies in which conductors and foamed resin strips are not disposed. May be. In addition, when the vacancies are provided in multiple strips, a plurality of conductors may be dispersed and disposed, for example, one conductor is disposed for each of the two vacancies, for a total of two It can also be carried out by arranging the lead wires in the vacancies.

In addition, the flexible hose can be configured to include other members. For example, a gas barrier layer or the like can be added inside or outside the inner hose wall or inside the outer hose wall. Further, a protrusion formed of a hard resin material or the like may be attached and integrated on the outer peripheral surface of the outer hose wall.

The flexible hose of the present invention is a synthetic resin flexible hose, but may include a member made of a material other than the synthetic resin. For example, a metal wire may be provided as a reinforcing body provided in the hose body, or a metal foil or the like may be laminated on the hose wall. In short, the flexible hose made of synthetic resin in the present invention is a flexible hose whose main part of the flexible hose wall is made of synthetic resin. In the description of the above embodiment, the flexible hose made of a thermoplastic resin has been described. However, the synthetic resin material constituting the hose body is not limited to the thermoplastic resin, and a synthetic rubber material or A thermosetting resin material may be used.

The flexible hose of the present invention can be used as a flexible hose that transports gas, liquid, powder, granules, and mixtures thereof, and can transmit electric signals and supply electric current with a built-in conductor, Industrial use value is high.

H Flexible hose 1 Hose body 11 Inner hose wall 12 Hard resin reinforcement 13 Outer hose wall 2 Conductor 3 Foamed resin member
H2 Flexible hose 4 Hose body 41 Hose wall 42 Reinforcing body

Claims (4)

A synthetic resin flexible hose provided with a conductive wire,
In the hose body of the flexible hose, a spiral vacancy is formed,
In the vacant chamber, a plurality of conductors are arranged in a non-adhered state for one vacant chamber ,
The internal cavity is disposed foamed resin strips are in a non-adhesive state with conductors,
A flexible hose arranged such that at least two of the conductive wires are separated from each other with a foamed resin strip interposed therebetween in the interior of the empty room . The flexible hose according to claim 1 , wherein the two conductive wires are disposed apart from each other in the hose axial direction. At least a portion of the conductors, a flexible hose according to any one of the spiral Check claims along the axial direction of the hose end is disposed 1 or claim 2. The flexible hose according to claim 1 , wherein the two conductive wires are disposed apart from each other in the hose radial direction.

Images