JP2571516Y2 - Wire reinforced hose - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire reinforced hose, and more particularly, to a flexible hose for pumping various fluids such as gas and liquid, and a home appliance, for example, a dust suction hose for a vacuum cleaner. The present invention relates to a means for improving the durability of a wire rod reinforced hose having an electric cord used therein.

[0002]

2. Description of the Related Art A conventional example of the above-mentioned wire rod reinforcing hose will be described with reference to FIG. The wire reinforcing hose (1) is formed by molding rubber or plastic into a hollow cylindrical shape to form a flow path (3) for a fluid to be transported inside a hose body (2). Hose body (2) to prevent rupture of hose body (2) when pumping a fluid to be transported (not shown) such as granules or gas at high pressure
A reinforcing wire rod (4) wound in a coil shape is embedded therein. Various wire diameters are used depending on the strength characteristics required for the reinforcing wire (4).

When the wire reinforcing hose (1) is used as a dust suction hose or the like of a vacuum cleaner, the wire reinforcing hose (1) is inserted into the hose body (2) along the coiled winding layer of the reinforcing wire (4). The electric cord (5) is buried.

[0004]

With the increase in the pressure of the fluid to be transported, the pressure resistance required for the wire reinforcing hose (1) increases, and the diameter of the reinforcing wire (4) increases accordingly. I do. As a result, the diameter and weight of the wire-reinforced hose (1) are increased, which makes it difficult to handle the wire-reinforced hose (1). Increasing the diameter of the reinforcing wire (4) also has an adverse effect on the flexibility of the wire reinforcing hose (1), and also makes it difficult to secure a burying space when the electric cord (5) is used together. Conventionally,
Japanese Patent Publication No. 44-8212 discloses a proposal for reducing the weight of a reinforcing wire rod by making the shape of a rectangle, an oblong shape, or another flat cross section, and orienting the flat direction in the radial direction of the hose. In addition, the connection between the hose body and the reinforcing wire is insufficient, and it is not easy to secure a space for burying the electric cord.

[0005]

According to the present invention, there is provided a rubber or plastic hose body formed into a hollow cylindrical shape, and a reinforcing coil buried in the hose body in a coil shape. In a hose made of a wire, the reinforcing wire is made of a steel wire having a non-circular irregular cross-section in which long sides are arranged in the direction of the coil diameter.
A wire rod reinforcing hose having a deformed cross section of the reinforcing wire rod and a rubber or plastic hose body formed into a hollow cylindrical shape, and buried in a coil shape in the hose body. The reinforcing wire rod,
In a hose comprising an electric cord disposed along the coil layer of the reinforcing wire, the reinforcing wire is formed of a steel wire having a non-circular irregular cross-section having a long side disposed in the direction of the coil diameter. In particular, it is an object of the present invention to provide a wire rod reinforcing hose characterized in that a concave portion is provided in a deformed cross section of the reinforcing wire and an electric cord is provided in the concave portion.

[0006]

The reinforcing wire is made of a steel wire having a non-circular deformed cross section. In particular, by providing a concave portion in the deformed cross section of the reinforcing wire, the thickness of the hose body is reduced by the reinforcing wire. And the connection between the hose body and the reinforcing wire is improved, the reinforcing action of the hose body by the reinforcing wire can be improved, and, of course, the weight can be reduced.

[0007] Further, by arranging the electric cord in the recess of the reinforcing wire, the embedding space of the electric cord can be secured in the embedding space of the reinforcing wire, and the embedding space of the electric cord can be easily secured. In addition, the electric cord can be surrounded and protected by the concave portion of the reinforcing wire.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A specific example of the present invention will be described below with reference to FIGS. In the following description, the same components as those in FIG. 3 showing the related art are denoted by the same reference numerals, and the description of the same items will not be repeated.

In a wire reinforcing hose (10) shown in FIGS. 1A and 1B and FIGS. 2A to 2C, a high-strength steel having a non-circular deformed cross section is used as a reinforcing wire (11). A wire is used, and a concave (1
2) is provided. FIG. 2 (A) shows an arcuate concave portion (12) provided on both sides of the reinforcing wire (11) to form a drum-shaped cross section, and FIG. 2 (B) shows both sides of the reinforcing wire (11). FIG. 2C shows a case where a concave portion (12) is provided on one side of a reinforcing wire (11) to form a U-shaped cross section. Is shown. As described above, by spirally winding the reinforcing wire (11) having a non-circular cross-sectional shape with a non-circular deformed cross-section with the long side of the wire in the coil radial direction, the cross-sectional modulus and secondary cross-section of the wire (11) are obtained. The moment is changed, and the wire reinforcing hose (10) having a large pressure resistance is selected.

On the other hand, FIGS. 1A and 1B and FIG.
In the wire rod reinforcing hose (10A) shown in FIGS. 2 to 4F, a steel wire having a deformed cross section similar to that shown in FIGS. 2A to 2C is used as the reinforcing wire rod (11). Connect the electric cord (5) to the reinforcing wire (1).
It is arranged inside the concave portion (12) provided in 1). By doing so, the electric cord (5)
In this case, it is possible to easily secure the buried space, and to improve the protection of the electric cord (5).

[0011]

According to the present invention, a steel wire having a non-circular shaped cross section is used as a reinforcing wire, and in particular, by providing a recess in the deformed cross section of the reinforcing wire, the meat portion of the hose body is reinforced. In this case, the strength of the hose body and the reinforcing wire can be improved, and the reinforcing action of the hose body by the reinforcing wire can be improved. Of course, the weight can be reduced.

Further, by arranging the electric cord in the concave portion of the reinforcing wire, a space for embedding the electric cord can be secured in the space for embedding the reinforcing wire, and the space for embedding the electric cord can be easily secured. In addition, the electric cord can be surrounded and protected by the concave portion of the reinforcing wire.

[Brief description of the drawings]

FIG. 1A is a front view of a wire reinforcing hose according to the present invention, and FIG.

2 (A) to 2 (C) are longitudinal sectional views of a main part of the wire rod reinforcing hose according to the first embodiment, and FIGS. 2 (D) to 2 (F) are longitudinal sectional views of the main part of the wire rod reinforcing hose according to the second embodiment.

FIG. 3 (A) is a side view of a conventional wire rod reinforced hose having a partial cross section, and FIGS. 3 (B) and 3 (C) are longitudinal sectional views of main parts thereof.

[Explanation of symbols]

 2 Hose body 3 Flow path of fluid to be transported 5 Electric cord 10 Wire rod reinforcement hose 10A Wire rod reinforcement hose 11 Reinforcement wire rod 12 Recess

Claims (2)

(57) [Scope of request for utility model registration] 1. A hose comprising a rubber or plastic hose body formed into a hollow cylindrical shape, and a reinforcing wire buried in a coil shape in the hose body, wherein the reinforcing wire has a coil diameter. A wire reinforced hose comprising a steel wire having a non-circular deformed cross section having a long side disposed in the direction of (a), and particularly having a recess in the deformed cross section of the reinforcing wire. 2. A hose body made of rubber or plastic formed in a hollow cylindrical shape, a reinforcing wire buried in a coil shape in the hose body, and a reinforcing wire arranged along a coil layer of the reinforcing wire. The reinforcing wire is made of a steel wire having a non-circular irregular cross-section having a long side arranged in the direction of the coil diameter. A wire reinforcing hose having a concave portion on its surface and an electric cord disposed in the concave portion.