JPH04227221A - Pipe of electrical cleaner - Google Patents

Abstract

PURPOSE:To eliminate the inconvenience in operation due to the twist of a hose by joining the hose in turnable manner for a pipe which connects an extension pipe on the suction side and a hose on the sweeper side and obtain the pipe of an electrical cleaner into which an electric contact part which ON/OFF operates the electrical cleaner and has a simple structure is assembled with the simple structure. CONSTITUTION:The first connection pipe 8 connected with an extension pipe 3 on the suction side and the second connection pipe 11 which is connected with a hose 5 on the sweeping side and the other side of which is joined in turnable manner with the first connection pipe 8 are provided, and an electric conductive slide contact body 9 which is installed on the fitting surface on which both the pipes 8 and 11 are joint-fitted and an electric conductive slide contact piece 12 are electrically connected.

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

[Prior Art] If a hose is fixedly connected to the suction port of the main body of a vacuum cleaner, it is necessary to change the direction of the vacuum cleaner as cleaning progresses, and unreasonable force is applied to the connection part with the suction port. As a result, damage to the hose and twisting of the hose may occur, so as in Japanese Utility Model Publication No. 46-17346, a suction port that opens upward is formed on the top surface of the vacuum cleaner body, and a bent pipe connected to one end of the hose is provided. One in which the suction pipe is rotatably inserted has been proposed.

0003

[Problems to be Solved by the Invention] However, in this prior art, in order to eliminate the twist in the hose, not only the hose but also the extension pipe 46 connected to the end of the hose must be rotated to the same position relative to the suction port. You will have to move a lot of heavy objects,
It's not easy. Furthermore, if the twist becomes strong, the twist cannot be resolved satisfactorily by this revolution operation alone, and if this is repeated, there is a concern that the hose may be damaged.

SUMMARY OF THE INVENTION An object of the present invention is to provide a vacuum cleaner pipe that reliably prevents twisting of the hose and is even easier to use.

[0005]

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

[0006]

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

[0007]

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 vacuum cleaner handle pipe according to an embodiment of the present invention.

On the suction side of the handle pipe 1 of the vacuum cleaner,
As shown in the figure, an extension pipe 3 is connected to the floor suction port 2,
In addition, on the opposite sweeping side, a hose 5 connected to the main body 4 is provided.
is connected.

As shown in the side view of FIG. 2(a), this handle pipe 1 has an intermediate portion that bridges the suction side, that is, the front part of the handle pipe 1, and the sweep side, that is, the rear part of the handle pipe. It has a handle part 1A formed apart from the handle pipe 1, and a remote control switch 6 is attached to this handle part 1A. Here, the handle part 1A
has been described as being formed apart from the handle pipe 1, but the handle pipe 1 itself may be gripped. Therefore, the remote control switch 6 only needs to be provided at the front part of the handle pipe 1.

Further, the suction side is a suction portion 1B that connects to the extension pipe 3, and the sweep side is a suction hose cover portion 1C that covers the connection portion with the hose 5. Also,
As shown in the plan view of FIG. 4B, a fastening portion 1D to which a screw 7 is fastened is formed at the end of the handle cover 1E near the suction hose cover portion 1C of the handle portion 1A.

Inside the handle pipe 1, as shown in FIG.
A connecting pipe 8 as shown in the plan view is built-in. There are three grooves 8A, 8B on the outer periphery of the right end of this connecting pipe 8.
8C is formed. Of these, a ring-shaped conductive sliding member 9 is fitted into two of the grooves 8A and 8B. One conductive wire 10 is connected to each of these conductive sliding contact bodies 9, and the two conductive wires 10 are connected to the remote control switch 6. Further, this connecting pipe 8 is formed with a fastening portion 8D for fixing with a screw to the fastening portion 1D of the handle cover 1E of the outer handle pipe 1.

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 ring-shaped conductive sliding contact piece 12 is fitted in the holder. These conductive sliding contact pieces 12 also have conductive wires 13.
The conductive wire 13 is further connected to a hose steel wire 14 passing through the hose 5 and heading toward the main body 4. Furthermore, a through hole 11D is provided in the groove 11C.

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

As described above, according to the handle pipe 1 of this embodiment, the connecting pipe 11 to which the hose 5 is attached is fitted onto the outer periphery of the connecting pipe 8, and the connecting pipe 11 is fitted into the groove 11C from the outside of the connecting pipe 11. Since the convex portion 15A of the resin ring 15 for retaining the slip-off is configured to engage with the groove 8C of the inner connecting pipe 8 through the through hole 11D of the groove 11C, the convex portion of the resin ring 15 for retaining the retainer 15A becomes rotatable. Therefore, even if the hose 5 is twisted when gripping the handle 1A and holding the handle pipe 1 in your hand, the hose 5
rotates with respect to the handle pipe 1, so twisting of the hose 5 can be eliminated.

Furthermore, the grooves 11A, 11 of the connecting pipe 11
The hemispherical portion of the conductive sliding contact piece 12 in B is the groove 11A,
Since the conductive sliding member 9 of the grooves 8A and 8B of the connecting pipe 8 is contacted through the through hole 11E provided in a part of the hose 11B, even if the hose 5 rotates, the handle pipe 1 and the main body 4 can be electrically connected. In addition, the conductive sliding contact body 9
Although a ring-shaped one is used, a contact piece-shaped one at the end may be used, and in short, any electrical contact piece that is connected to the conductive wire 13 and faces through the through hole 11E may be used.

Furthermore, the conductive wire 10 of the connecting pipe 8 does not straddle the conductive sliding body 9 or pass through the groove, but rather runs under the conductive sliding body 9 as shown in FIG. Ya groove 8B
, 8C, a through hole 8E carved for processing the conductive wire 10 at the bottom.
It is buried inside. Therefore, when the connecting pipe 11 is inserted or when the connecting pipes 8 and 11 rotate relative to each other, the conductive wire 10 or the connecting portion between the conductive wire 10 and the conductive sliding body 9 will be exposed to the protrusion of the resin ring 15 for preventing the pipe from coming off. It does not come into contact with the portion 15A, etc., and can be smoothly inserted and rotated. The process of embedding the conductive wire is the same for the connection pipe 11.

As described above, according to this embodiment, the handle pipe 1 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 handle pipe 1 at the suction part 1B. The hose 5 automatically rotates even if the extension tube 3 and the hose 5 become misaligned during operation, 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. This makes cleaning even easier.

[0019]

[Effects of the Invention] According to the present invention, since the hose and the handle pipe are rotatably connected via the connection pipe, even if the hose gets twisted during cleaning work by the user, the handle pipe will not be damaged. Just by pulling the formed handle, the hose and handle pipe rotate relative to each other, eliminating the twist.

Since the remote control switch is provided in front of the handle, the orientation of the handle matches the orientation of the remote control switch, so the remote control switch always faces the user, providing good operability and ease of use. Good. In addition, since the remote control switch is located in front of the handle, the remote control will not be hidden by the user's hand even when the handle is grasped, allowing reliable remote control. You can operate the remote control switch, so you can clean with just one hand.

[Brief explanation of the drawing]

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

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

3 is a plan view of a connecting pipe built into the handle pipe of FIG. 1 and a plan view of a connecting pipe connected to the hose of 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 Handle pipes 1D, 8D Fastening portion 1E Handle cover 5 Hose 6 Remote control switch 7 Screws 8, 11 Connection pipes 8A, 8B, 8C, 11A, 11B, 11C Groove 8E
, 11D, 11E Through hole 9 Conductive sliding contact piece 12 Conductive sliding contact piece 10, 13 Conductive wire 14 Hose steel wire 15 Retaining resin ring 15A Convex portion

Claims (1)

[Claims] Claim 1: A connecting pipe provided at the other end of the hose, one end of which is connected to the vacuum cleaner body, a conductive sliding contact piece provided on the connecting pipe, and a conductive member that comes into contact with the conductive sliding contact piece. A handle pipe having a sliding contact member and rotatably connected to the connecting pipe, a handle portion of the handle pipe, a remote control switch provided in front of the handle portion, and an extension formed at the front end of the handle pipe. A vacuum cleaner pipe consisting of a pipe connection.