JPH04212323A - Pipe for vacuum cleaner - Google Patents

Abstract

PURPOSE:To obviate the inconvenience in an operation caused by the torsion of a hose, and also, to offer the pipe of a vacuum cleaner in which an electric contact point for executing a turn-on/turn-off operation of the vacuum cleaner is integrated by a simple structure by coupling the hose so as to be freely rotatable to the pipe for connecting mutually an extension tube of a suction side and a hose of a sweep-out side. CONSTITUTION:The vacuum cleaner is provided with a first connecting pipe 8 for which the extension tube 3 of a suction side is connected, and a second connecting pipe 11 for which the hose 5 of a sweep-out side is connected, and in which the other end is coupled so as to be freely turnable to the first connecting pipe 8, and an electrical connection is executed by a conductive slide-contact body 9 and a conductive slide-contact piece 12 provided on the fitting surface for which both the pipes 8, 11 are coupled.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe for a vacuum cleaner.

0002

2. Description of the Related Art Conventionally, as seen in Japanese Utility Model Application Publication No. 49-32459 and Japanese Utility Model Application Publication No. 56-91558, vacuum cleaners in which a handle is attached to a bent pipe have been proposed.

Compared to a pipe without a handle, a pipe using a bent pipe with a handle not only allows the floor suction port to be moved easily with one hand, but also makes it easier to clean furniture, ceilings, and other areas above a certain height. When cleaning, the suction port can be moved without putting extra strain on the hands, making cleaning easier.

0004

[Problem to be solved by the invention] However, a hose is fixed to the bent pipe with a handle of a conventional vacuum cleaner, and the vacuum cleaner is assembled by fitting an extension pipe to the end of the bent pipe with a handle. There is a problem in that when the spring of the hose is unwound from its original position due to cleaning, cleaning, or aging, the hose becomes twisted and becomes difficult to use.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a bent pipe with a handle for a vacuum cleaner that prevents twisting of the hose and is even more convenient to use.

[0006]

[Means for Solving the Problems] According to the present invention, a hose and a bent pipe with a handle are rotatably connected in the circumferential direction.

[0007]

[Function] As a result, even if the hose is twisted, the hose can be automatically rotated against the bent pipe with a handle held in the hand to eliminate the twist, making cleaning even easier.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an overall view of a vacuum cleaner using a bent pipe with a handle according to an embodiment of the present invention.

As shown in the figure, an extension pipe 3 to a floor suction port 2 is connected to the suction side of the bent pipe 1 with a handle of the vacuum cleaner, and an extension pipe 3 connected to the main body 4 is connected to the opposite sweep side. The connected hose 5 is then connected.

This bent pipe 1 with a handle has a shape shown in FIG.
As shown in the side view a), a handle portion 1A is formed that bridges the suction side and the sweep side, and a remote control switch 6 is attached to this handle portion 1A. Moreover, the suction side is a suction part 1B connected to the extension pipe 3, and the sweep side is a suction hose cover part 1C that covers the connection part with the hose 5. Further, as shown in the plan view of FIG. 1B, a fastening portion 1D to which the screw 7 is fastened is located near the suction hose cover portion 1C of the handle portion 1A.
is formed.

Inside this bent pipe 1 with a handle,
A connecting pipe 8 as shown in the plan view of FIG. 3(a) is built-in. There are three grooves 8 on the outer periphery of the right end of this connecting pipe 8.
A, 8B, and 8C are formed. Among these, groove 8A,
A conductive ring 9 is fitted into the two wires 8B. One lead wire 10 is connected to each of these conductive rings 9, and two lead wires 10 are connected to the remote control switch 6. The connection pipe 8 also has a fastening portion 1 of the bent pipe 1 with a handle on the outside.
A fastening portion 8D for fixing to D with a screw is formed.

On the other hand, a connecting pipe 11 is attached to the hose 5, as shown in the plan view of FIG. 5(b). There are also three grooves 11A, 11B on the outer circumference of this connecting pipe 11.
11C are formed, among which grooves 11A and 11B
A conductive ring 12 is fitted in the. One lead wire 13 is connected to each of these conductive rings 12, and the lead wire 13 is further connected to a hose steel wire 14 that passes through the hose 5 and goes toward the main body 4. Furthermore, a through hole 11D is provided in the groove 11C.

FIG. 4 shows a built-in connection in which the connecting pipe 11 is inserted into the suction hose cover portion 1C of the bent pipe 1 with a handle after a resin ring for preventing it from coming off, which will be described later, is fitted into the groove 11C of the connecting pipe 11. This figure shows the state of connection between the pipe 8 and the inserted connecting pipe 11. As shown in the figure, in the joint part, the connection pipe 8 is connected to the inside and the connection pipe 11 is connected to the outside, and a through hole 11E is provided in a part of the two grooves 11A and 11B into which the conductive ring 12 is fitted. Therefore, the conductive ring 12, which has a hemispherical shape only in this portion, is pressed against the conductive ring 9 fitted into the grooves 8A and 8B of the inner connecting pipe 8. Also, groove 1
A portion of the retaining resin ring 15 fitted into the groove 1C is a convex portion 15A, and this convex portion 15A is engaged with the groove 8C of the connecting pipe 8 through the through hole 11D in the groove 11C.

As described above, according to the bent pipe 1 with a handle, the bent pipe 1 with a handle has the fastening portion 1D.
, 8D, and a connecting pipe 8 fixed with screws 7 is built in, and the connecting pipe 11 to which the hose 5 is attached is inserted into the outer periphery of the connecting pipe 8, and the connecting pipe 11 is inserted into the groove 11C from the outside of the connecting pipe 11. The convex portion 15A of the inserted retaining resin ring 15 is configured to pass through the through hole 11D of the groove 11C and engage with the groove 8C of the inner connecting pipe 8, so that the retaining resin ring 15 Convex portion 15
A becomes freely rotatable. Therefore, bent pipe with handle 1
Even if the hose 5 is twisted when held in the hand, the twist of the hose 5 can be eliminated by rotating the hose 5.

Furthermore, the grooves 11A, 11 of the connecting pipe 11
The hemispherical portion of the conductive ring 12 in B is the groove 11A,
Since it contacts the conductive rings 9 of the grooves 8A and 8B of the connecting pipe 8 through the through hole 11E provided in a part of the pipe 11B, even if the hose 5 rotates, the bent pipe 1 with a handle
and the main body 4 can be electrically connected.

Furthermore, the lead wire 10 of the connecting pipe 8 does not straddle the conductive ring 9 or pass through the groove, but rather runs under the conductive ring 9 or through the groove 8, as shown in FIG.
It is buried in a narrow groove 8E carved for processing the lead wire 10 at the bottom of B and 8C. Therefore, when the connecting pipe 11 is inserted or when the connecting pipes 8 and 11 rotate relative to each other, the lead wire 10 or the conductive ring 9 between the lead wire 10 and the lead wire 10
The connection part with the pipe does not come into contact with the convex part 15A of the resin ring 15 for preventing the pipe from coming off, and it can be inserted smoothly.
It can also rotate. This embedding process for the lead wires is the same for the connection pipe 11 as well.

As described above, according to this embodiment, the bent pipe 1 with a handle and the hose 5 can be rotatably connected, and the extension pipe 3 to which the floor suction port 2 is attached is connected to the bent pipe 1 with a handle at the suction part. Even if the extension pipe 3 and the hose 5 become misaligned when connected at 1B, or springback occurs when the hose 5 is rewound due to aging, or even if the hose 5 becomes twisted due to cleaning at a high place, etc., the hose 5 will automatically close. It rotates, making cleaning even easier.

[0019]

According to the present invention, since the hose and the bent pipe with a handle can be rotatably connected, it is possible to obtain a bent pipe with a handle for a vacuum cleaner that is easy to use.

[Brief explanation of the drawing]

FIG. 1 is an overall view of a vacuum cleaner to which a bent pipe with a handle is applied according to an embodiment of the present invention.

FIG. 2 is a side view of the bent pipe with a handle shown in FIG. 1 and a plan view when the bent pipe with a handle and a hose are connected.

3 is a plan view of a connecting pipe built into the bent pipe with a handle in FIG. 1 and a plan view of a connecting pipe connected to the hose in FIG. 1. FIG.

FIG. 4 is a cross-sectional view of the connecting portion when the connecting pipes in FIG. 3 are connected.

FIG. 5 is an explanatory diagram of lead wire embedding processing for the connection pipe in FIG. 3;

[Explanation of symbols]

1 Bent pipe with handle 1D, 8D Fastening part 5 Hose 6 Remote control switch 7 Screws 8, 11 Connection pipe 8A, 8B, 8C, 11A, 11B, 11C Groove 8E
, 11D, 11E Through holes 9, 12 Conductive rings 10, 13 Lead wire 14 Hose steel wire 15 Retaining resin ring 15A Convex portion

Claims (1)

[Claims] 1. A pipe that connects an extension pipe to one end and a hose to the other end, the first connecting pipe having one end coupled to the hose and the other end rotatable to the first connecting pipe. and a second connecting pipe fitted into the vacuum cleaner pipe, the first connecting pipe and the second connecting pipe being electrically connected by a conductive ring.