JPH04121852U - vacuum cleaner hose - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] The purpose is to reduce the weight of a vacuum cleaner hose that has two built-in conductors, and to make it easier to connect the conductor to the connection terminal at the end of the hose. [Structure] A pair of spiral reinforcing bodies 3 are formed by integrally insulating coating 7 a first conductor 4 coated on a hose wall 2 and a second conductor 6 disposed along this coating. They are installed in parallel, and the first conductor is made of copper-plated hard steel wire, and the second conductor is made of SUS wire whose outer circumferential surface is closely coated with copper.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is used in vacuum cleaners, etc. that have a rotating brush inside the floor suction port. vacuum cleaners with two built-in conductors, one for low voltage and one for high voltage. related to commercial hoses.

0002

[Conventional technology]

In general, this type of vacuum cleaner hose is, for example, No. 54, a pair of spiral reinforcements attached to the hose wall contains hard steel wire and numerous strands. The former transmits low voltage (about 24V) from the vacuum cleaner body and is connected to the hose. The remote control switch located at the hand allows you to turn on and off the power. transmits a high voltage of 100V from the vacuum cleaner body, and connects it to the floor suction via the electric wire installed in the extension tube. Connects to a small electric motor installed inside the entry port and rotates the rotating brush installed inside. I try to let them do it.

0003

[Problem that the idea aims to solve]

However, in the above conventional configuration, many strands of copper are used as conductors for high voltage. As a result of using wires or wires coated with insulation, the There are problems with the vacuum cleaner being heavy and cumbersome to carry and operate. There was a need for lighter weight.

0004 Therefore, we stopped using many stranded copper wires for one conductor, and Copper-plated hard steel wire is used as the conductor, and enamelled wire or iron wire is used as the low-voltage conductor. The use of enamelled wire or iron wire was considered, but it was not strong enough and the end of the hose There were cases where the terminal was disconnected during the connection work with the connecting terminal in the section.

[0005] Therefore, we replaced it with steel wire, hard steel wire, or piano wire that is stronger than enamelled wire. However, when connecting to the connection terminal at the end of the hose, this conductor was If you pull it out from the plastic coating while tearing it, the wire will curl at the end. Moreover, since this cannot be corrected by hand, it is necessary to solder the connection terminal etc. There was a problem that made the connection work difficult.

[0006] This invention attempts to solve these problems, and has two built-in conductors. At the same time, it is possible to reduce the weight of vacuum cleaner hoses and to connect conductors at the hose ends. The purpose is to facilitate the connection work to the terminals.

[0007]

[Means to solve the problem]

The vacuum cleaner hose of this invention has a coating on the hose wall made of synthetic resin. The first conductor and the second conductor disposed along this coating are integrally insulated. In a hose with a pair of helical reinforcements attached parallel to each other over its entire length, The first conductor is a copper-plated hard steel wire, and the second conductor is an SU whose outer peripheral surface is coated with copper. It is constructed using S wires.

[0008]

[Effect]

With this configuration, one conductor is a SUS wire with copper adhered to the outer circumferential surface, and the The weight of this type of hose will be reduced compared to the past. In addition, the above SUS wire can be bent freely by hand, and the synthetic resin coating can be peeled off to expose the exposed wire. It does not form a loop-like habit and does not cause difficulty in connection work with connection terminals.

[0009]

【Example】

Embodiments of the present invention will be described below with reference to the drawings. In Figure 1, 1 is a vacuum cleaner hose, which is a bellows-shaped hose made of soft synthetic resin. A pair of spiral reinforcing bodies 3, 3' are attached to the inner surface of the hose wall 2 in parallel over the entire length, We are reinforcing the shape of the hose and forming two electrical circuits.

0010 The helical reinforcing bodies 3, 3' are made of linear copper plating covered with a hard synthetic resin coating 5. A first conductor 4 made of hard steel wire and a plurality of conductors arranged along the outside of the sheath 5 A second conductor 6 made of SUS wire with copper adhered to the thin outer circumferential surface is made of hard synthetic resin. It is formed by applying the insulating coating 7 more integrally.

[0011] The second conductor 6 is a Cu-clad stainless steel wire with a diameter of 0.12 mm. - (manufactured by Sumitomo Electric Industries, Ltd., product name Sumiduet) is used. It is preferable to do so, but even one is fine.

0012 Then, both ends of the hose 1 are cut in a plane perpendicular to the central axis of the hose. A pair of helical reinforcing bodies 3, 3' are led out from the hose wall 2, and the first conductor 4 The synthetic resin coatings 5 and 7 covering the first and second conductors 6 are peeled off to expose both conductors 4 and 6. , the first conductor 5 is connected to a connection terminal (not shown), and this is installed in an extension pipe (not shown). the second conductor 6 to form a high-voltage power supply line for the electric suction body is connected to other connection terminals (not shown) and connected to the remote control switch provided at the hose end. Configures the low voltage signal line for on/off.

[0013]

[Effect of the idea]

According to the present invention, one of the two conductors is made of a thin SUS wire with copper closely attached to the outer periphery. Compared to conventional hoses that use multiple twisted copper wires as conductors, Weight reduction can be achieved.

0012 In addition, the SUS wire mentioned above has sufficient strength and is difficult to cut, and is easy to straighten with your fingers. Since the tip can be bent freely, the exposed wire at the end of the hose can be bent into a curled shape. It is easy to handle in connection work with connection terminals without getting stuck.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway side view showing an embodiment of a vacuum cleaner hose of the present invention.

FIG. 2 is an enlarged sectional view of the hose shown in FIG. 1.

[Explanation of symbols]

2: hose wall, 3, 3': spiral reinforcement, 4: first conductor, 5: Covering, 6: second conductor, 7: Insulating coating.

Claims (1)

[Scope of utility model registration request] Claim 1: A pair of helical reinforcing bodies formed by integrally insulating and covering a first conductor coated on a hose wall made of synthetic resin and a second conductor disposed along the sheath. A vacuum cleaner hose installed in parallel over its entire length, characterized in that the first conductor is a copper-plated hard steel wire, and the second conductor is a SUS wire whose outer circumferential surface is closely coated with copper. hose.