JPS62500287A - vacuum cleaner tube - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] vacuum cleaner tube The invention has a flexible body of plastic material that includes a Concerning vacuum cleaner tubes provided with one or several electrical wires that are fixed.

Tubes of the above type have not been known in the past and are still not capable of operating a vacuum cleaner by means of a control device. Used when desired, for example to start or stop the vacuum cleaner motor, or In order to change the speed of the electric motor, a control device is placed on a general grip connected to the tube. child This type of tube has an electrically driven tool, such as a brush, in a nozzle connected to it. Used to transmit electrical energy from the motor's blower to the run roller.

In some applications, wires embedded within the tube are used to form a reinforcing element that prevents deformation of the tube. Also achieve.

For example, in U.S. Pat. No. 4,203,476, plastic strips When the tube is made, one half of the strip is attached to the other half with an adjacent turn. overlapping. The strip has a ridge facing the outside of the tube and a ridge facing the inside of the tube. A reinforcing wire is inserted into the miso, and the miso is placed under the strip material. covered by a part of The disadvantage of this type of arrangement is that the total double thickness of the strip and the use of a homogeneous single wire makes the tube extremely rigid. This hardness is It is easy to cause damage to the tube after bending it several times. Another drawback is that the wires are on the outside of the tube. i.e. placed in the areas most exposed to mechanical strain; this is important in case of pipe damage. There is a danger that the line may become blocked or not covered.

Another example of a tube of the type mentioned above is described in the patent specification No. 3.001,529. be. The tube described in this West India patent specification is designed to form a cavity [special Made of shaped plastic strips, inserted into the void so that the wires can move freely. I'll dig into it. This mobility is due to the fact that one edge of the strip has several wall sections and the strip has lines. This is achieved because these wall sections surround the line after pressing. The empty space is radial to the tube. Forms a closed contour that is rigid in the direction. A second U-shape of the strip to make the tube flexible. Only the outer wall of the edge is glued into the closed cavity created by the first edge.

The two edge parts can then move relatively freely relative to each other.

The disadvantages of this type of tube are the complex shape of the strip and the corresponding difficulty in manufacturing it. The main problem is that the tube cannot withstand bending stresses to the desired degree.

The object of the invention is to obtain a tube which does not have the above-mentioned disadvantages, which is the object of the claims set out below. The scope of the present invention is limited to the scope of each section.

Embodiments of the invention will be described below with reference to the accompanying drawings. Figure 1 of the attached drawings 2 is a perspective view of a vacuum cleaner having a tube, and FIG. 2 is a longitudinal section of the tube shown in FIG. 1. It is a diagram.

$1 Does the vacuum cleaner shown in the diagram include an electric blower device and a garbage bag? Has a surrounding hood 10 do. The hood 1o is connected to a tubular shaft 13 through a pipe 11, a joint 12, and a valve. 13 has a nozzle 14 at its outer end. For pipe 11vC, install wire t5 (Fig. 2). The electric power 1iii115 is connected to the joint 12 through the electric device inside the hood 1°. Connect the control device 16 to a power source. The end of the tube 11 facing y1ovc is shown to allow easy removal of tubing from fittings, or fittings 1-'10. An electrically inductively actuated device may be provided.

The tube 11 carries one or several strips 17 of plastic, and the first edge of the strip 17 18 is wound helically so as to overlap the second edge 19 of the strip, and these two edges The sections are connected to a U-shaped section 20 [, 1llll] extending radially from the tube.

The surface of the first edge 18 facing the interior of the tube has a generally flat portion 18a, the outer end thereof is the outer short side wall 18b [Continued, the inner end of the portion 18a is the inner long side wall 18C] followed by. The outwardly facing surface 18d of the tube is generally flat. Part 18a, 1sb , 18c together form a bead, the sidewalls of which taper radially outward.

The second edge 19 has a raised part formed on the flat surface 19a, and the flat surface 19a is short side wall 191] and an outer long side wall 19c. Surface 19 facing the inside of the tube d is generally flat, and together with the flat surface 19c on the outside of the tube, the tongue 19f is completely free. , whose tongue 19f continues into the U-shaped portion 20. Flat surface 19 a k < according to recess 21 The electric wire 15 is placed into the groove 21. Indent wire 15 in glue 22 21Vc, and in the same way, side walls 18b, 19b, 18c, 19c and flat portion 18a.

19a. Fix everything to each other.

The electric wire 15 consists of several filaments, which are twisted and ( or) Helically wound around a core of non-conducting soft material. Preferably , the electric wire 15 has a relatively thick core made of synthetic material, as is known in the art, and has a wire around the core. Thread several metal filaments.

Copy and translation of written amendment) Submitted (Article 184-7, Paragraph 1 of the Patent Act) June 1988 Month 20 Mr. Michibe Uga, Commissioner of the Patent Office 1. Display of patent application PCT/SE 85100348 2. Name of the invention Vacuum cleaner pipe 3. Patent applicant Address: Sweden, Nis-105/15, Stockholm, Luxbacke N, 1 Name: Actibo Lugs 1~ Electrolux 4, Representative: Address: Bussan Building Annex, 1-1-15 Nishi-Shinbashi, Minato-ku, Tokyo 105 Telephone (5 91) 02615, date of submission of amendment February 3, 1986 6. List of attached documents (1) Copy and translation of written amendment) Scope of claims amended in one copy J. A flexible body of plastic material and at least one electric wire (15 ), and has a large number of twisted filaments IIL-'H, and the body is wound in a helical shape. formed by at least one strip (17), the edges of which are formed by successive turns; Although they overlapped each other, they were connected to A, and one of the edges was connected to the electric wire (15). In a vacuum cleaner tube having a recess (21) k for receiving, on the first edge (19) A recess (21) is provided in the raised part, and the second edge (18a) overlaps the raised part, and The edges of the adjacent wraps are joined together along the overlapping sides and the strip (17) wraps around the edges. The U-shaped middle part (20) connected to the t- has a recess in the middle part (20) A vacuum cleaner tube characterized in that the sides face inwardly towards the center of the tube.

2. The second edge (18) has a miso facing the inside of the tube, and the side wall of the miso (18b, 18c) is radially outwardly tapered and the raised portion of the first edge (19) is of complementary shape. A vacuum cleaner tube according to claim 1, characterized in that it has a wall.

3 One side wall (18b) of the side walls of the groove is smaller than the other side wall (18c) The vacuum according to claim 2, characterized in that it has a radial extension. vacuum cleaner tube.

Treasure investigation report

Claims (1)

[Claims] 1. It has a flexible body of plastic material, and the body has a rigid body attached to it along its entire length. In a vacuum cleaner tube with one or several wires attached, the wire (15) is soft. It has a core of non-conductive material and one or more strips of conductive material around the core. A vacuum cleaner tube characterized by a filament wound into a helical shape. 2. The lower flexible body has one or more strips (17) wound in a spiral shape, The edges (18, 19) of (17) overlap each other at the adjacent turns, and the edges At least one edge (18) has an indentation (21), and the wire (15) is arranged in the indentation (21). 21) The vacuum cleaner tube according to claim 1, characterized in that it is placed in a vacuum cleaner tube. . 3. Claims characterized in that the electric wire (15) is fastened to the body with glue (22). The vacuum cleaner tube according to any one of the above items. 41 or more strips having a first edge (19) and a second edge (18); These are connected to each other on the middle part (20) of the U shape, and the first edge (19) is connected to the electric wire. (15) with a raised part having an indentation (21) to fit the second edge (1 8) has a surface (18a) that overlaps the raised portion, and the second edge (18) is fully overlapped. Any one of the above claims characterized in that they are connected vertically to each other. Vacuum cleaner tubes as described in section. 5. The second edge has a groove that opens into the inside of the tube, and the side walls (18b, 18c) of the groove are half-shaped. radially outwardly tapering, the first edge ridge having a correspondingly shaped sidewall; The vacuum cleaner tube according to claim 4, characterized in that: 6. One side wall (18b) of the side walls of the groove is in the radial direction of the other side wall (18c). Claim 1, wherein the radial extension is smaller than the radial extension. The vacuum cleaner tube according to item 5. 7. The middle part (20) of the U-shape has a height that is approximately the same as the width of the edges (18, 19). The vacuum cleaner according to any one of the above claims, characterized in that: Remover pipe. 8. Any of the above claims, characterized in that the core is made of synthetic fiber. The vacuum cleaner tube according to item 1. Detailed explanation of the invention■