JPH0680980U - Wire reinforcement hose - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] To obtain a wire reinforced hose with high pressure resistance and prevent damage to the electrical cords embedded in the wire reinforced hose. [Structure] A high-strength steel wire having a modified cross section is used as the reinforcing wire (11) and is wound such that the long side of the cross section is in the coil radial direction. The electric cord (5) is the reinforcing wire (1
It is arranged adjacent to the long side of the cross section of the reinforcing wire (11), such as in the recess (12) of 1).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wire-reinforced hose, and more specifically, to an electric hose used for a flexible hose for pumping various fluids such as gas and liquid and household electric appliances such as a dust suction hose of an electric vacuum cleaner. The present invention relates to a method for improving the durability of a wire reinforcement hose with a built-in cord.

[0002]

[Prior art]

 A conventional example of the wire reinforcement hose will be described with reference to FIG. The wire-reinforced reinforcing hose (1) is formed by molding rubber or plastic into a hollow cylinder to form a flow passage (3) for a fluid to be transported inside the hose body (2). A reinforcing wire wound in a coil shape inside the hose body (2) so that the hose body (2) does not burst when a fluid to be transported (not shown) such as granules or gas is pressure-fed. (4) is buried. Various wire diameters are used according to the strength characteristics required for the reinforcing wire (4).

When the wire rod reinforcement hose (1) is used as a dust suction hose of an electric vacuum cleaner, etc., the wire rod reinforcement hose (4) is placed inside the hose body (2) along the coiled winding layer. Embed the electric cord (5).

[0004]

[Problems to be solved by the device]

 As the pressure of the fluid to be transported increases, the pressure resistance required of the wire reinforcement hose (1) increases, and the diameter of the reinforcement wire (4) correspondingly increases. As a result, the diameter and weight of the wire reinforcement hose (1) increase, which makes it difficult to handle the wire reinforcement hose (1). Increasing the diameter of the reinforcing wire rod (4) also adversely affects the flexibility of the wire rod reinforcing hose (1), making it difficult to secure a buried space when the electric cord (5) is also used. .

[0005]

[Means for Solving the Problems]

 As a means for solving the above problems, the present invention provides a hose including a rubber or plastic hose body formed in a hollow cylindrical shape and a reinforcing wire rod embedded in the hose body in a coil shape. The reinforcing wire is composed of a high-strength steel wire having a non-circular modified cross-section having long sides arranged in the direction of the coil diameter, and a reinforcing wire hose and rubber molded into a hollow cylinder. Alternatively, in a hose consisting of a plastic hose body, a reinforcing wire embedded in the hose body in a coil shape, and an electric cord arranged along the coil layer of the reinforcing wire, The reinforcing wire is composed of a steel wire having a non-circular modified cross-section having long sides arranged in the direction of the coil diameter, and the electric cord is arranged adjacent to the long side of the reinforcing wire. There is provided a wire reinforced hose, characterized in that there.

[0006]

[Action]

 By using a steel wire with a non-circular modified cross-section as the reinforcing wire, the wire reinforcement will be greater than when a steel wire with a circular cross-section with the same external dimensions is used as the reinforcing wire. The pressure resistance of the hose increases. As a result, it is possible to make the wire-reinforced hose compact.

Also, by disposing the electric cord adjacent to the long side extending in the coil diameter direction of the reinforcing wire, the electric cord is protected from damage due to bending, and the pipe of the wire reinforcing hose is protected. An increase in diameter is avoided.

[0008]

【Example】

 Hereinafter, a specific example of the present invention will be described with reference to FIGS. 1 and 2. In the following description, the same components as those of FIG. 3 showing the prior art will be denoted by the same reference numerals, and the duplicated description will be omitted.

In the wire rod reinforcing hose (10) shown in FIGS. 1 and 2 (A) to (D), a high-strength steel wire having a non-circular modified cross section is used as the reinforcing wire rod (11). There is. By making the cross-sectional shape of the reinforcing wire (11) non-circular and winding the long side of the cross-section in the coil radial direction, the cross-sectional modulus and second moment of area of the wire (11) change, and A large wire reinforcement hose (10) is obtained.

On the other hand, in the wire rod reinforcing hose (10A) shown in FIGS. 1 and 2 (E) to (H), a steel wire having a modified cross section similar to the above is used as the reinforcing wire rod (11). , The electric cord (5) inside the recess (12) provided in the reinforcing wire (11) or on the long side of the reinforcing wire (11) extending in the direction orthogonal to the longitudinal direction of the wire reinforcing hose (10A). They are arranged adjacent to each other and between the coil-like buried layers of the reinforcing wire (11). The positioning accuracy of the electric cord (5) is improved by adjusting the relative position of the electric cord (5) with respect to the reinforcing wire (11) as described above. Further, when the electric cord (5) is fitted in the recess (12), the reinforcing wire (11) functions as a protective member and prevents the electric cord (5) from being damaged by bending.

[0011]

[Effect of device]

 By using the reinforcing wire rod (11) having a non-circular irregular cross section, the pressure resistance of the wire rod reinforcing hose (10) is improved, and the increase in hose diameter is suppressed, and the ease of handling is also secured. It

In addition, by fitting the electric cord (5) adjacent to the long side of the reinforcing wire (11), the electric cord (5) can be compactly built in and can be prevented from being damaged by bending. Well protected.

[Brief description of drawings]

FIG. 1A is a front view of a wire-reinforced reinforcing hose according to the present invention, and FIG. 1B is a side view of a part of the hose.

2 (A) to (D) are vertical cross-sectional views of a main part of the wire-reinforced hose according to claim 1, and (E) to (H) are vertical cross-sectional views of a main part of the wire-reinforced hose according to claim 2.

FIG. 3A is a side view of a conventional wire rod-reinforced hose with a partial cross section, and FIGS. 3B and 3C are vertical cross-sectional views of relevant parts.

[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

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[Procedure amendment]

[Submission date] February 14, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1A is a front view of a wire-reinforced reinforcing hose according to the present invention, and FIG. 1B is a side view of a part of the hose.

2 (A) to (D) are vertical cross-sectional views of a main part of the wire-reinforced hose according to claim 1, and (E) to (H) are vertical cross-sectional views of a main part of the wire-reinforced hose according to claim 2.

FIG. 3A is a side view of a conventional wire rod-reinforced hose with a partial cross section, and FIGS. 3B and 3C are vertical cross-sectional views of relevant parts.

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

Claims (2)

[Scope of utility model registration request] 1. A hose comprising a rubber or plastic hose main body formed in a hollow cylindrical shape and a reinforcing wire embedded in the hose main body in a coil shape, wherein the reinforcing wire is a coil diameter. 2. A wire rod reinforced hose made of a steel wire having a non-circular modified cross-section having long sides arranged in the direction of. 2. A rubber or plastic hose main body formed in a hollow cylinder shape, a reinforcing wire embedded in the hose main body in a coil shape, and arranged along the coil layer of the reinforcing wire. In a hose consisting of an installed electric cord, the reinforcing wire is composed of a high-strength steel wire having a non-circular modified cross section having long sides arranged in the direction of the coil diameter, and the electric cord is A wire-reinforcing hose, which is arranged adjacent to a long side of a reinforcing wire.