JP2003033308A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner with an extension pipe fit for storage, which gives no hindrance in a cleaning work and excels in storability. SOLUTION: This vacuum cleaner comprises a first pipe body and a second pipe body that moves by slipping inside the first pipe body, capable of expanding and contracting their lengths, and being fixed at arbitrary positions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an extension tube which comprises a first tube body and a second tube body which slides inside thereof, and which can be expanded and contracted to a desired length and can be locked at an arbitrary position. The present invention relates to a vacuum cleaner provided.

[0002]

2. Description of the Related Art A conventional extension tube for an electric vacuum cleaner has a patent No. 3
There was a structure shown in No. 024545. This extension pipe has the following structure.

A first tube having a connecting terminal A provided at the end of the hose and a connecting terminal B slidable in the tube and at the end on the side of the mouthpiece.
A second tube body having a second tube body having a second tube body, a conductor electrically connecting the connection terminal A and the connection terminal B, a first tube body storage portion for storing the conductor and an intake passage. Section,
The second tubular body accommodating portion is integrally extended in the axial direction and on one side surface, and the first tubular body accommodating portion is formed of a tubular body with a gap provided on the inner surface thereof. The end portion of the tubular body is inserted into the storage portion, the second pipe body is inserted into the gap, and the second pipe body is slid itself in the first pipe body.

[0004]

However, in the conventional structure, since the second pipe accommodating portion has a structure in which the lid is attached to the outside of the intake passage by welding, a gap is formed in the welding portion with the lid. It was generated and it was very difficult to make the first tube body and the second tube body airtight.

Further, since the second tubular body accommodating portion has to be arranged outside the intake passage, the diameter of the extension pipe becomes large and the storability is poor.

SUMMARY OF THE INVENTION The present invention solves the above problems, and an object thereof is to provide an electric vacuum cleaner having an extension tube which does not hinder the cleaning work and which is excellent in storability.

[0007]

An electric vacuum cleaner body having a blower for sucking dust into a dust collecting chamber, a connecting body attached to a hose mounting portion of the electric vacuum cleaner body, and one end of the connecting body. A flexible suction hose attached to the blower and communicating with the blower, a hand handle attached to the other end of the suction hose, an extension pipe attached to the hand handle and communicating with the suction hose, and the extension pipe The extension pipe is provided with a suction port body attached to the first extension pipe, and the extension pipe has a transport path formed at one end thereof detachably connected to the hand handle and includes a connection terminal A; A second tube body slidably connected to the other end of the tube body and the other end of the tube body being connected to the suction body and having a connection terminal B. The connection terminal A and the connection terminal B are electrically connected to each other. With a conductor that is electrically connected Comprising the electric wire accommodating portion A which arranged with a gap on the inner surface of the first tube, the wire accommodating portion B which arranged with a gap on the inner surface of the second tube, the wire accommodating portion A
Is inserted into the electric wire storage portion B so as to be slidable in the first and second tubes, and the conductor is stored in the electric wire storage portion A and the electric wire storage portion B. And vacuum cleaner.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIGS. FIG. 10 is an external perspective view of an electric vacuum cleaner according to an embodiment of the present invention, and FIGS. 1 to 9 are explanatory views of extension tubes.

First, a schematic structure of an electric vacuum cleaner according to an embodiment of the present invention will be described with reference to FIG. Figure 10
FIG. 7 is an external view showing a vertical storage posture of the electric vacuum cleaner. In FIG. 1, reference numeral 1 generally indicates an electric vacuum cleaner, and an electric vacuum cleaner main body 100 including a mechanism (not shown) for sucking dust into a dust collecting chamber, such as a blower, and the electric vacuum cleaner main body 100. A coupling body (hereinafter referred to as a sub handle portion) 600 attached to the hose attachment portion 10, a flexible suction hose 200 having one end attached to the sub handle portion 600 and communicating with the blower, and the suction hose 200 A hand handle 300 attached to the end and communicating with the blower, an extension pipe 400 attached to the hand handle 300 and communicating with the suction hose 200, and attached to the extension pipe 400 and communicating with the extension pipe 400. It is composed of a mouthpiece 500.

In this embodiment, the sub handle portion 6
00 is a main body attachment mechanism portion 610 for attaching to the electric vacuum cleaner body 100, a hose attachment mechanism portion 620 for attaching the suction hose 200, and dust that connects the electric vacuum cleaner body 100 and the suction hose 200. By providing the passage 630, the extension pipe attachment mechanism portion 640 for holding the extension pipe 400, and the handle portion 660 for holding the sub handle portion 600 by the user, a general vacuum cleaner can be stored. Thus, the electric vacuum cleaner 1 having excellent transportability can be obtained.

Next, the structure of the extension pipe 400 will be described in detail with reference to FIGS.

A connection terminal A402 for electrically connecting to the proximal portion 300 is provided on the side of the proximal portion 401a of the first tubular body 401, while a suction body is provided at the end of the secondary tubular body 403 on the side of the suction body 500. A connection terminal B404 for electrically connecting to a rotary brush (not shown) built in 500 is provided, and is fixed in a stretchable manner.

The conductor 405 is connected to the connection terminal A402 on the side of the hand portion 300, and the connection terminal B4 on the side of the mouthpiece 500.
It is made of elastic metal connected to 04. As described above, the conductors can be expanded and contracted by the expansion and contraction of the first and second pipe bodies.

The first tubular body housing portion 406 accommodates the conductor 405 therein, one of which is fixed to the inner surface (intake passage) of the first tubular body 401 and the other of which is projected and fixed to the gap 401a.
01 outer wall and a lid A407 fixed to the upper part thereof.

On the other hand, the second tube accommodating portion 408 has a conductor 405.
And a lid B40 fixed to the outer wall of the second tubular body 403 and the upper portion of the outer wall of the second tubular body 403.
9 is formed.

The second tubular body storage portion 408 is the first tubular body storage portion 4
It is attached so that it can be stored freely inside 06. In the present embodiment, the second tubular body storage portion 408 can be stored in the first tubular body storage portion 406, but the first tubular body storage portion 408 can be stored in the second tubular body storage portion 4.
It may be freely stored in 06.

The airtight packing 410 is provided at the end of the inner surface of the first tube 401 to keep airtightness with the second tube 403. Since the airtight packing 410 is in contact with the outside of the second tube body 403, airtightness with the intake passage is maintained. By forming the second tubular body into a substantially cylindrical shape as in the present embodiment, the unevenness of the surface is eliminated, so that the airtightness is secured.

The second tube 403 may be a resin molded in a tubular shape, but a similar effect can be obtained even if it is a metal.

Further, by disposing the conductor 405 inside the first and second pipe bodies (inside the intake passage), the extension pipe 400
It can be configured without increasing the outer diameter of itself,
It can be constructed in a small size.

[0020]

According to the present invention, the second tubular body accommodating section is
Since it is arranged inside the tube body, the outside of the second tube body, that is, the outer surface can be uniformly molded, so that the airtight packing can be surely maintained by the airtight packing arranged in the first tube body.

Further, since the electric wire storage portion is arranged in the intake passage, the size can be reduced.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an extension tube of a vacuum cleaner.

FIG. 2 is a top view of an extension tube of the electric vacuum cleaner.

FIG. 3 is a detailed cross-sectional view of a second tube body of the extension tube of the electric vacuum cleaner.

FIG. 4 is a detailed cross-sectional view of the first tube body of the extension tube of the electric vacuum cleaner.

FIG. 5 is a detailed top view of a second tube body of the extension tube of the electric vacuum cleaner.

FIG. 6 is a detailed top view of a second tube body of the extension tube of the electric vacuum cleaner.

FIG. 7 is a cross-sectional view of first and second tubes of an extension tube of the electric vacuum cleaner.

FIG. 8 is a sectional view of a first tube body of an extension tube of the electric vacuum cleaner.

FIG. 9 is a cross-sectional view of a second tube body of the extension tube of the electric vacuum cleaner.

FIG. 10 is an external view showing a storage posture of the electric vacuum cleaner according to the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Vacuum cleaner, 100 ... Vacuum cleaner main body, 101 ... Hose attachment part, 200 ... Suction hose, 300 ... Hand handle, 400 ... Extension tube, 401 ... First tube body, 401a ...
Gap, 402 ... Connection terminal A, 403 ... Second tubular body, 40
3a ... gap, 404 ... connection terminal B, 405 ... conductor, 4
06 ... 1st pipe storage part, 407 ... Lid A, 408 ... 2nd
Tubular housing, 409 ... Lid B, 410 ... Airtight packing,
500 ... Suction body, 600 ... Coupling body (sub handle part),
610 ... Main body mounting mechanism section, 620 ... Hose mounting mechanism section,
630 ... Dust passage, 640 ... Connection pipe mounting mechanism section, 660
… Handle part.

Claims (3)

[Claims] 1. An electric vacuum cleaner body having a blower for sucking dust into a dust collecting chamber, a connecting body attached to a hose attaching portion of the electric vacuum cleaner body, and one end attached to the connecting body. A flexible suction hose communicating with the blower, a hand handle attached to the other end of the suction hose, an extension pipe attached to the hand handle and communicating with the suction hose, and attached to the extension pipe The extension tube includes a first tube body having a connection terminal A detachably connected to the handle at a conveying path formed at one end thereof, and the extension tube of the first tube body. A second tube body slidably connected to the other end, the other end being connected to the mouthpiece, and a connection terminal B;
A conductor that electrically connects the connection terminal A and the connection terminal B, a first tube body storage portion provided with a gap on the inner surface of the first tube body, and an inner surface of the second tube body. A second tubular body accommodating portion arranged with a gap is provided, and an end portion of the first tubular body accommodating portion is inserted into the second tubular body accommodating portion so as to be slidable in the first and second tubular bodies. The first conductor housing portion, the second conductor
An electric vacuum cleaner characterized by being stored in a tubular body storage section. 2. An electric vacuum cleaner body having a blower for sucking dust into a dust collecting chamber, a connecting body attached to a hose attachment portion of the electric vacuum cleaner body, and one end attached to the connecting body. A flexible suction hose communicating with the blower, a hand handle attached to the other end of the suction hose, an extension pipe attached to the hand handle and communicating with the suction hose, and attached to the extension pipe The extension tube includes a first tube body having a connection terminal A detachably connected to the handle at a conveying path formed at one end thereof, and the extension tube of the first tube body. A second tube body slidably connected to the other end, the other end being connected to the mouthpiece, and a connection terminal B;
A conductor for electrically connecting the connection terminal A and the connection terminal B, a first tube body storage portion provided with a gap on the inner surface of the first tube body, and an inner surface of the second tube body. A second tubular body accommodating portion provided with a gap is provided, and an end portion of the second tubular body accommodating portion is inserted into the first tubular body accommodating portion so as to be slidable in the first and second tubular bodies. The first conductor housing portion, the second conductor
An electric vacuum cleaner characterized by being stored in a tubular body storage section. 3. The first pipe body storage portion and the second pipe body storage portion are formed as separate parts from the first pipe body and the second pipe body, respectively. Vacuum cleaner.