JP2017189290A - Hose assembly for vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase tensile strength of a hose assembly 1 for vacuum cleaner.SOLUTION: In a hose assembly 1 for vacuum cleaner, connection members 13, 14 are integrated respectively at both end parts of a flexible hose body 11. A braided tube 12 is provided in a loose insertion state so as to cover the outer periphery of the hose body 11 across the whole length, and both end parts of the braided tube 12 are integrated with the connection members 13, 14 respectively across the whole periphery. When a tensile force is applied to the hose assembly 1 for vacuum cleaner, excessive extension of the hose body 11 is suppressed by the braided tube 12, and tensile strength of the hose assembly is improved.SELECTED DRAWING: Figure 2

Description

The present invention relates to a hose assembly for a vacuum cleaner in which a connecting member is integrated with an end portion of the hose for a vacuum cleaner.

Vacuum cleaners with flexible hoses are widely used. In a vacuum cleaner, air and garbage are sucked through a flexible hose. In a vacuum cleaner, if a connecting member is integrated with the end portions of these flexible hoses, the connecting operation and handling of the hose using the connecting member is possible, which is convenient. Therefore, a connecting member is usually integrated with the end portions of these hoses for electric vacuum cleaners and used as a hose assembly.

For example, Patent Document 1 discloses a hose assembly in which a mouth member (connecting member) is integrated with a flexible hose by using resin injection molding, and the hose is a bellows-like hose in the hose assembly. The main body and the lip are included, the lip is provided so as to cover the concave groove of the bellows, and the side edge on one side of the lip is integrated with the convex of the bellows. In such a hose assembly, when the hose and the mouth member are integrated by injection of the resin, the injected resin is prevented from leaking into the hose.

JP 2012-255466 A

Such vacuum cleaner hose assemblies are required to have high performance not only in terms of design characteristics of vacuum cleaners as home appliances but also in functional aspects of vacuum cleaner hoses such as strength, durability, and handleability. .

In particular, the strength, which is a basic function, has a great influence on other performances, such as the necessity of making the hose heavy and rigid in order to increase the strength. Therefore, a hose assembly that can efficiently increase the strength of the hose is required.
The objective of this invention is providing the hose assembly for vacuum cleaners which is easy to raise tensile strength.

As a result of intensive studies, the inventor provided a braided tube so as to cover the hose body, and integrated both ends of the braided tube into the connection member over the entire circumference, without making the hose rigid. As a result of finding out that the tensile strength of the assembly can be increased, the present invention has been completed.

The present invention relates to a hose assembly for a vacuum cleaner in which connecting members are respectively integrated at both ends of a flexible hose body, and the braided tube is loosely inserted so as to cover the entire outer periphery of the hose body. It is the hose assembly for vacuum cleaners provided in the state, and the both ends of the braided tube are respectively integrated with the said connection member over the perimeter (1st invention).

In the first invention, the hose body is a flexible hose having a spiral reinforcing body or a flexible hose having a bellows-like hose wall having a spiral ridge or ring-like ridge, and no load It is preferable that the hose body and the braided tube are in contact with each other (second invention). In the first invention, it is preferable that the braided tube is composed of a plurality of synthetic resin monofilaments, and these synthetic resin monofilaments are spirally arranged and braided into a cylindrical shape. (Third invention). In the third invention, it is preferable that the synthetic resin monofilaments are arranged in a right-handed spiral or a left-handed spiral so as to form a symmetrical angle with respect to the center line of the braided tube (fourth invention). In the first invention, the braided tube in the unloaded hose assembly is knitted in a contracted state so that the length of the braided tube is shorter than the length of the braided tube when no load is applied to the braided tube alone. It is preferable that the assembled tube is integrated (5th invention).

According to the hose assembly for a vacuum cleaner of the present invention (first invention), the tensile strength of the hose assembly is increased. In particular, when the second invention is used, the tensile strength is further increased. Further, according to the third aspect of the present invention, the hose assembly for the electric vacuum cleaner can be further reduced and the outer periphery of the hose is slippery. Further, according to the fourth aspect of the invention, even if the hose expands and contracts, it is difficult for twisting to occur between both ends of the hose assembly. Moreover, if it is made like 5th invention, the shrinkage | contraction of the hose by a suction force can also be suppressed.

It is a figure which shows the external appearance of a vacuum cleaner provided with the hose assembly for vacuum cleaners which concerns on this invention. It is a partial cross section figure which shows the structure of the hose assembly for vacuum cleaners of 1st Embodiment of this invention. It is a partial cross section figure which shows the structure of the connection member vicinity of the hose assembly for vacuum cleaners of 1st Embodiment of this invention. It is a figure which shows the woven structure of the braided tube in the hose assembly for vacuum cleaners of 1st Embodiment of this invention. It is a figure which shows the other example of the other woven structure of a braided tube.

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 and application. As 1st Embodiment, the hose assembly 1 for vacuum cleaners which is embodiment in a household vacuum cleaner is demonstrated. FIG. 1 shows the overall appearance of a vacuum cleaner, and a hose assembly 1 for a vacuum cleaner is connected to an inlet of a vacuum cleaner main body 99 by a connecting member (also referred to as a mouth member) 13 at one end of the hose. The other end of the hose assembly 1 is connected to the hand operating section 98 by the connecting member 14, and the extension pipe 97 and then the floor nozzle 96 are connected to the hand operating section 98 to connect the vacuum cleaner. Is configured.

2 and 3 show the configuration and structure of the hose assembly 1 for a vacuum cleaner according to the first embodiment of the present invention. In FIG. 2, the internal hose body 11 is drawn without drawing a part (central part) of the braided tube 12, and the upper half of the hose body 11 is shown in a sectional view and the lower half is shown in an external view. . In FIG. 3, the upper half of the hose assembly 1 in the vicinity of the connecting member is shown in cross-sectional view and the rest is shown in appearance.

The hose assembly 1 for an electric vacuum cleaner has a flexible hose body 11 and connection members 13 and 14, and the connection members 13 and 14 are integrated with both ends of the hose body 11, respectively. . The hose assembly 1 is connected to the suction port of the vacuum cleaner main body 99 by the connecting member 13 on the main body side. The hose assembly 1 is connected to the hand operation section 98 by the connection member 14 on the hand operation section side.

The connection members 13 and 14 may be members formed in a shape in which a portion where the end portion of the hose body 11 is connected and integrated becomes a hollow cylindrical shape. In the present embodiment, the connection members 13 and 14 have a cylindrical shape having collars and grooves, but are not limited to this, and may be in other forms as long as the connection with other members can be achieved. Further, the hand operating part can also be used as a connecting member by connecting the hose body directly to the hand operating part (98). The material constituting the connection members 13 and 14 may be a metal, but typically a synthetic resin is used.

As a specific configuration of the hose body 11, a known vacuum cleaner hose can be used. In the present embodiment, a hose body 11 is used in which a spiral reinforcing body 11b spirally formed on the outer periphery of a hose wall 11a formed in a cylindrical shape by a synthetic resin is integrated. Although the material which comprises the hose wall 11a is not specifically limited, A synthetic resin, for example, a soft vinyl chloride resin etc., can be used. As a constituent material of the spiral reinforcing body 11b, for example, a resin material such as a resin-coated steel wire or a hard vinyl chloride resin can be used. The manufacturing method of such a hose body is known.

Moreover, the flexible hose for vacuum cleaners provided with the bellows-like hose wall which has a spiral uneven | corrugated strip or a ring-shaped uneven strip so that a hose wall becomes easy to expand-contract as a hose main body can also be used. Such a hose can be manufactured by a so-called spiral molding method or a continuous blow molding method.

Connection integration of the connection members 13 and 14 and the hose body 11 can be performed by fixing with a band or the like, adhesion, welding, or the like. Alternatively, the connecting members 13 and 14 and the hose body 11 may be integrated by covering the end of the hose body with an injection molded resin (13b) by a method using insert injection molding, for example, a so-called overmolding method. Good.

The vacuum cleaner hose assembly 1 further includes a braided tube 12. The braided tube 12 is provided so as to cover the entire outer periphery of the hose body 11. That is, the hose body 11 is inserted inside the braided tube 12. The braided tube 12 and the hose body 11 are in a loosely inserted state so that the braided tube 12 and the hose body 11 can move relative to each other at least in the central portion in the length direction of the hose assembly. Since both of them are in the loose insertion state, the flexibility of the hose is easily maintained.

The outer peripheral portion of the hose body 11 (in this embodiment, the outer peripheral portion of the spiral reinforcing body 11b) contacts the inner peripheral surface of the braided tube 12 in a no-load state in which no tensile force is applied to the hose assembly. It is preferable to be provided. It should be noted that a gap may be formed between the inner peripheral surface of the braided tube 12 and the outer peripheral portion of the hose body 11.

In the hose assembly 1, both end portions of the braided tube 12 are integrally fixed to the connecting members 13 and 14 over the entire circumference. For the integration of the braided tube 12 and the connection members 13 and 14, the same means as the integration with the hose body 11 can be adopted. It is preferable that the end part of the hose body 11 and the end part of the braided tube 12 are simultaneously integrated with the connection members 13 and (14) using the overmold method. If the braided tube 12 is firmly fixed to the connection members 13, 14, the end of the hose body 11 and the end of the braided tube 12 are overlapped, and the overlapped portion is tightened with a band or the like. You may make it integrate in a connection member. Preferably, an adhesive is used so that each of the wires, yarns and monofilaments constituting the braided tube 12 is fixed to the connecting member, or the end of the braided tube is embedded in the connecting member and integrated. It is preferable to do.

The braided tube 12 will be described. A braided tube is a mesh-like tube formed by knitting a plurality of lines and yarns into a seamless cylindrical shape. The braided tube 12 is flexible enough not to impair the flexibility of the hose assembly 1. Typically, the braided tube is breathable, but breathability is not essential.

The wires and yarns constituting the braided tube may be metal wires or natural fiber yarns, but preferably monofilaments made of synthetic resin are selected. For example, the braided tube may be made of polypropylene (PP) resin. In this embodiment, the braided tube 12 is composed of monofilament made of polyethylene terephthalate (PET) resin. If a braided tube is formed of monofilaments made of synthetic resin, the braided tube can easily have appropriate stretchability, flexibility and stiffness in a vacuum cleaner hose assembly.

The woven structure of the braided tube (braided structure) is not particularly limited, and various woven structures can be adopted. For example, as shown in FIG. 4 showing a woven structure of the braided tube 12 in the first embodiment, a plurality of synthetic resin monofilaments are used, and each synthetic resin monofilament is arranged in a spiral shape to form a cylindrical shape. A braided form is preferable. In FIGS. 4 and 5, each monofilament is represented by a single line, and the monofilament orientation state is shown ignoring the vertical relationship at the intersection of the monofilaments.

In this embodiment, a plurality of synthetic resin monofilaments are arranged in a right-handed spiral shape (FR) and a left-handed spiral shape (FL), and these are woven into a plain weave shape to seamlessly knit. It is a group tube. That is, among these synthetic resin monofilaments, half are arranged in a right-handed spiral shape, and the other half are arranged in a left-handed spiral shape, which are knitted. The structure of the weave may be a twill shape and is not particularly limited. In the present embodiment, the monofilaments are grouped in groups of three, and these groups are woven into a plain weave shape while keeping the monofilaments arranged in parallel in each group. .

Preferably, as in this embodiment, the angle α (FIG. 4) at which each monofilament is inclined with respect to the center line m of the braided tube 12 is a monofilament (FR) arranged in a right-handed spiral shape, and a left-handed shape. It is equal to the monofilament (FL) arranged spirally, that is, the monofilament arranged in the right-handed spiral or the left-handed spiral forms a symmetric angle with respect to the center line m of the braided tube 12. It is preferable that they are assembled. In such a symmetrical monofilament configuration, the angle α formed by the orientation direction of the monofilament and the center line of the braided tube is 20 ° to 70 ° as measured in an unloaded hose assembly. It is preferably 30 ° to 60 °, more preferably 40 ° to 50 °.

Alternatively, the braided tube may be a cylindrical woven fabric having a woven structure as shown in FIG. In a braided tube that is a cylindrical woven fabric, a plurality of warp yarns FLN that are arranged substantially parallel to the center line m of the braided tube are spirally arranged in a direction substantially perpendicular to the center line m. The weft FSP is crossed to realize a woven structure with the warp FLN and the weft FSP, thereby forming a cylindrical fabric. The weft FSP may be one or more.

The braided tube 12 is arranged so as to cover the outer periphery of the hose body 11, and both ends of the braided tube 12 are integrated with the connecting member over the entire circumference, so that the braided tube 12 and the hose are integrated. The cylindrical space that exists between the main bodies 11 communicates with the external space through the gap portion of the mesh of the braided tube, while the other portion has a structure that does not substantially communicate with the external space. Yes.

The manufacturing method of the said hose assembly 1 for vacuum cleaners is demonstrated. The flexible hose body 11 is manufactured by a known manufacturing method and prepared by cutting to a predetermined length. The braided tube 12 is also manufactured by a known manufacturing method using a dedicated braiding machine and prepared by cutting to a predetermined length. It is preferable to perform a process such as heat fusion or dipping so that the end portion of the braided tube is not separated. What is necessary is just to manufacture about the connection members 13 and 14 by injection molding of a synthetic resin etc., for example.

The flexible hose body 11 is inserted into the braided tube 12 and the ends of the flexible hose body 11 and the braided tube 12 are integrated with the connection member 13 over the entire circumference. Examples of the integration include adhesion by an adhesive and integration by an overmold method. If the integration is performed by the overmold method, first, the end of the hose body 11 is covered on the outer periphery of the connection portion 13a of the connection member 13, and the end of the braided tube 12 is further covered to a predetermined position. At this time, an adhesive may be used in combination. While maintaining this state, these are placed in the injection mold, the mold is clamped, and the resin spreads in a ring shape around the entire end of the hose body 11 and the end of the braided tube 12. Thus, the resin is injection molded. The resin to be injected is preferably a resin having good adhesiveness and weldability to the constituent materials of the flexible hose body 11, the braided tube 12, and the connecting member 13. The injected resin (13b) becomes a part of the connecting member 13 while being integrated with the hose body and the braided tube.

Similarly, the end portions of the flexible hose body 11 and the braided tube 12 can be integrated with the connection member 14 over the entire circumference at the opposite end portion.
Thus, the hose assembly 1 for vacuum cleaners is manufactured.

The operation and effect of the hose assembly 1 for a vacuum cleaner according to the above embodiment will be described. In the hose assembly 1 for a vacuum cleaner, both ends of the braided tube 12 are integrated with the connecting members 13 and 14 over the entire circumference. The braided tube 12 has the property that, due to its braided structure, the expansion and contraction of the tube is limited, and although the tube is relatively free to a certain extent, the tube is difficult to extend when it is stretched to some extent. ing.

Therefore, even if the hose assembly 1 for vacuum cleaner is used and a strong force is applied to the hose assembly by forcibly moving the vacuum cleaner main body 99 by pulling the hand operating part 98 strongly during cleaning. The tensile strength of the hose assembly is increased and the hose is prevented from breaking.

That is, in the conventional vacuum cleaner hose that does not include a braided tube, the hose body directly receives the force applied to the hose assembly. Therefore, when a strong pulling force is applied, the hose body is stretched and easily broken. Further, in order to prevent such breakage, it is necessary to increase the strength of the hose body itself, and the hose is likely to be heavy or rigid.

On the other hand, in the hose assembly 1 for a vacuum cleaner according to the above embodiment, both ends of the braided tube 12 are integrated with the connecting members 13 and 14 over the entire circumference, so that the braided tube portion is connected. It functions as a member that directly transmits the tensile force acting between the members. When the braided tube is stretched to some extent, it becomes difficult to stretch the tube. When a strong tensile force acts on the hose assembly 1, most of the tensile force is braided without excessively stretching the hose body 1. It can be conveyed by the tube 12. Therefore, even if a large tensile force is applied, the hose body 11 can be prevented from extending and being damaged, and the tensile strength of the hose assembly can be increased.

Further, since the braided tube 12 is integrated with the connecting members 13 and 14 over the entire circumference, the tensile force can be distributed and received by a plurality of wires and yarns constituting the braided tube. The connection strength between the braided tube and the connection member is also high, and the tensile strength of the hose assembly 1 can be effectively increased. From this point of view, it is preferable that each of the wires, yarns, and monofilaments constituting the braided tube is embedded and bonded and integrated into the connection members 13 and 14, respectively, and fixed.

Further, as in the first embodiment, the hose body 11 is provided with a flexible hose having a spiral reinforcing body 11b, or a flexible hose wall having a helical ridge or ring-shaped ridge. When the hose body 11 and the braided tube 12 are in contact with each other in a no-load state, the tensile strength of the hose assembly 1 is particularly effectively increased. A flexible hose having a spiral reinforcing body 11b or a flexible hose having a hose wall having spiral ridges and ring-like ridges has high deformation resistance against the force of evenly tightening the hose. ing. On the other hand, the braided tube has a property of reducing the diameter when it is pulled and stretched. By combining these, even when a large force is applied to the hose assembly, the braided tube 12 is not stretched so much that the braided tube 12 does not stretch so much. The force can be received, and the expansion deformation of the hose body 11 is further suppressed, and the tensile strength of the hose assembly 1 is effectively increased.

The hose assembly 1 is moved until the length L0 of the braided tube 12 in the unloaded hose assembly and the inner peripheral surface of the braided tube 12 and the outer peripheral portion of the hose body 11 are in close contact with each other so that such an effect can be further exhibited. The ratio L2 / L0 to the length L2 of the braided tube when stretched is preferably in the range of 1 ≦ L2 / L0 ≦ 1.2. Further, if the ratio L2 / L0 is in the range of 1.1 ≦ L2 / L0 ≦ 1.2, the tensile strength of the hose assembly 1 is effectively increased, and the braided tube 12 and the hose body 11 are further increased. The hose assembly 1 is less likely to lose its flexibility.

From this point of view, in the unloaded hose assembly 1, it is more preferable that the outer peripheral portion of the hose body 11 and the inner periphery of the braided tube 12 are in contact with each other with substantially the same diameter. It is particularly preferred. This is because when the tensile force is applied, the braided tube 12 tightens the hose body 11 and the braided tube becomes difficult to extend, and the effect of suppressing the expansion of the hose assembly becomes more prominent.

According to the present invention, even if a high pulling force acts on the hose assembly 1, the hose body 11 is not easily broken, so that the hose assembly is reduced in weight by, for example, thinning the hose wall of the hose body 1. You can also.

Further, as in the hose assembly 1 of the first embodiment, the braided tube is composed of a plurality of synthetic resin monofilaments, and each synthetic resin monofilament is spirally arranged and knitted in a cylindrical shape. When assembled, the sliding of the outer periphery of the hose assembly is improved, and when the vacuum cleaner is used, the hose is less likely to be caught on furniture, doors, etc., and the handleability of the hose is improved. In addition, when a braided tube made of a synthetic resin monofilament is used, the hose assembly can be reduced in weight compared to the case of using a braided tube of another material.

Further, as in the case of the hose assembly 1 of the first embodiment, each synthetic resin monofilament has a right-handed spiral or a left-handed spiral so that each of the monofilaments made of synthetic resin forms a symmetrical angle with respect to the center line m of the braided tube 12. By being arranged, twisting of the hose assembly is suppressed. In a conventional hose assembly that does not have a braided tube, when the hose body expands and contracts, there is a helical reinforcement and helical ridges, so there is no rotation around the hose center axis between one end and the other end of the hose. It occurs, that is, the hose tends to be twisted. On the other hand, in the hose assembly 1 of the first embodiment, each synthetic resin monofilament constituting the braided tube 12 is arranged in a right-handed spiral or a left-handed spiral so as to form a symmetrical angle with respect to the center line m. Such a braided tube hardly twists even if it expands and contracts. Since such a braided tube 12 is integrated with the connecting members 13 and 14 at both ends, the hose assembly 1 suppresses the hose torsion during expansion and contraction. Thereby, the handleability of the hose assembly is improved when the vacuum cleaner is used.

Further, in the hose assembly 1, the length L0 of the braided tube 12 in the unloaded hose assembly 1 is shorter than the length L1 of the braided tube when the braided tube alone is unloaded. The braided tube is preferably integrated in a contracted state. Such a hose assembly can be manufactured by covering the hose body 11 with the braided tube contracted and integrating it with the connecting members 13 and 14 while maintaining the contracted state of the braided tube.

When the hose assembly 1 is configured using the braided tube 12 in a contracted state as described above, a reaction force is generated as the shrunk braided tube returns to its original length. Then, when using a vacuum cleaner, even if a negative pressure acts on the hose, the hose assembly 1 does not shrink so much. In conventional hoses for electric vacuum cleaners, it has been necessary to increase the thickness of the hose so that the hose does not shrink much even under negative pressure. However, in the hose assembly 1 of the embodiment, the braided tube 12 Can be used to prevent shrinkage, and the hose body 11 can be a thinner and lighter hose, which can contribute to weight reduction of the hose assembly.

Moreover, like the braided tube 12 used in the hose assembly 1 of the first embodiment, a plurality of monofilaments are arranged in parallel and arranged in parallel, and the monofilament sets are A braided tube having a woven structure arranged in a predetermined spiral and woven together is preferable. Since such a braided tube can reduce the filament diameter of the monofilament, it can be made into a thin and lightweight braided tube, and it is supple and has excellent tensile strength. Thus, the tensile strength of the hose assembly 1 can be particularly effectively increased.

The invention is not limited to the embodiment described above, and can be implemented with various modifications. Although other embodiments of the invention will be described below, in the following description, portions different from the above-described embodiment will be mainly described, and detailed descriptions of the same portions will be omitted. Further, the embodiments described below can be implemented by combining some of them or replacing some of them.

In the description of the above embodiment, the connection members 13 and 14 have been described as having a simple cylindrical shape. However, the shape of the connection member can be various forms of connection such as integrating peripheral members and attachment / detachment mechanisms. It can be a member.

Moreover, you may attach another member to the outer periphery of the braided tube 12 in the hose assembly 1 for electric vacuum cleaners of the said embodiment. For example, in a part such as a part close to the connection members 13 and 14, a flexible tube or a film is integrated on the outer periphery of the braided tube so that the part is not easily bent, and the handleability of the hose assembly 1 is improved. It can also be increased. Alternatively, the outer periphery of the braided tube may be covered with a flexible film or the like to make it difficult for dust to be caught on the outer peripheral surface of the braided tube.

Moreover, it is also possible to give the electricity supply function to the hose assembly 1 for vacuum cleaners of the said embodiment. With the energization function, an electric signal may be sent between the hand operating unit 98 and the electric vacuum cleaner main body 99, or electric power for driving a motor incorporated in the floor nozzle 96 may be supplied from the electric vacuum cleaner main body 99. it can. The energization function in the hose assembly 1 can be realized by, for example, integrating a conductive wire with the hose body 11. Alternatively, the energization function can be realized by inserting and arranging a conductive wire between the hose body 11 and the braided tube 12.

In the description of the above embodiment, the vacuum cleaner hose assembly used in a household vacuum cleaner has been described, but the type of the vacuum cleaner is not particularly limited. The vacuum cleaner hose assembly 1 can of course be applied to a commercial vacuum cleaner. Moreover, when using the suction type dust collector which is a kind of commercial vacuum cleaner, the above-mentioned vacuum cleaner hose assembly is also used as a vacuum cleaner hose for connecting between the dust collector and an electric tool (for example, an electric circular saw). 1 is applicable. The vacuum cleaner hose assembly 1 can also be applied to a hose of a central cleaner system integrated in a building.

The hose assembly for a vacuum cleaner according to the present invention can be widely used for household vacuum cleaners and commercial vacuum cleaners, and the tensile strength of the hose is increased, so that the industrial utility value is high.

DESCRIPTION OF SYMBOLS 1 Hose assembly 11 Hose main body 12 Braided tube 13, 14 Connection member 98 Hand operation part 99 Vacuum cleaner main body

Claims (5)

A hose assembly for a vacuum cleaner in which connecting members are respectively integrated at both ends of a flexible hose body,
A braided tube is provided in a loosely inserted state so as to cover the entire outer circumference of the hose body,
A hose assembly for a vacuum cleaner in which both end portions of the braided tube are respectively integrated with the connecting member over the entire circumference. The hose body is a flexible hose including a flexible hose having a spiral reinforcing body, or a bellows-like hose wall having a spiral ridge or ring-like ridge,
The hose assembly for an electric vacuum cleaner according to claim 1, wherein the hose body and the braided tube are in contact with each other in an unloaded state. The hose for a vacuum cleaner according to claim 1, wherein the braided tube is composed of a plurality of synthetic resin monofilaments, and these synthetic resin monofilaments are spirally arranged and braided into a cylindrical shape. Assembly. The hose assembly for a vacuum cleaner according to claim 3, wherein the synthetic resin monofilaments are arranged in a right-handed spiral or a left-handed spiral so as to form a symmetrical angle with respect to the center line of the braided tube. The braided tube is integrated in a contracted state so that the length of the braided tube in the unloaded hose assembly is shorter than the length of the braided tube when the braided tube alone is unloaded. The hose assembly for a vacuum cleaner according to claim 1.

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