JP2925590B2 - Vacuum cleaner extension tube - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a general household vacuum cleaner having an electric rotary brush provided on a floor nozzle, which is connected between the floor nozzle and a hose. This is related to extension pipes.

[Conventional technology]

Conventionally, as shown in FIG. 4, an extension pipe of this type of vacuum cleaner has a power cord (22) in a resin extension pipe main body (21).
And a power connector (23) is connected to both ends of the power cord (22).
3) was fixed to the base end of the extension pipe main body (21).

As shown in FIG. 5, a conventional extension pipe having such a configuration is generally connected in a lengthwise direction with a plurality of pipes connected at one end to a floor nozzle (24) and at the other end at a tip pipe ( twenty five)
In this use state, each power cord (22) of the plurality of extension tubes (B) is connected to the power connector (2).
3) is electrically connected via a rotary brush (not shown) of a type driven by a motor built in the floor nozzle (24), and a plurality of extension pipes (B) and a tip pipe (25). Are connected to the power supply via the above-mentioned means.

As shown in FIG. 6, the tip pipe (25) is connected to a hose (26) communicating with the vacuum cleaner main body, and supports the hose (26) and the extension pipe (B) when using the vacuum cleaner. It also functions as a gripper. An optical sensor (27) is incorporated inside the tip pipe (25), and dust sucked from the floor nozzle (24) and passing through the tip pipe (25) is detected by the sensor (27). You. This detection signal is input to a control circuit (28), and the control circuit (28) provides, for example, a red and green light 2 provided at a position facing the upper surface of the tip pipe (25) according to the amount of suction dust.
The color indicator lamp (29) was selectively turned on, and the suction power of the vacuum cleaner itself was increased or decreased.

[Problems to be solved by the invention]

However, in the case of the extension pipe (B) of the conventional vacuum cleaner as described above, since the indicator light (29) for indicating the amount of the sucked dust is attached only to the end pipe (25), the indicator light is displayed. The lighting of the lamp (29) was difficult to see because it was visually recognized at hand, and there was a problem in operability.

That is, at the time of cleaning, the extension pipe (B) and the floor nozzle (24) are connected to the tip pipe (25), and the floor nozzle (24) is reciprocated on the floor with the tip pipe (25). This collects dust on the floor surface.
The indicator light (29) of the tip pipe (25) is selectively turned on according to the amount of dust on the floor, and the user of the vacuum cleaner determines which indicator light (29) is turned on. The part which is visually recognized and has a large amount of dust is mainly cleaned. However, when the floor nozzle (24) is reciprocated with the tip pipe (25) and the tip pipe (25) is pulled close to the floor, the floor portion near the floor nozzle (24) and the indicator light (29)
It is impossible to view at the same time because of the viewing angle,
Every time the floor surface and the indicator light (29) are to be checked, the floor and the indicator light (29) must be seen alternately, which significantly impairs the cleaning workability and operability.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to improve the operability at the time of cleaning by improving an extension pipe of a vacuum cleaner.

[Means for solving the problem]

In order to achieve such an object, an extension pipe of a multi-joint vacuum cleaner according to the present invention is provided with an indicator light at a distal end portion of the extension pipe main body, and a signal line of the indicator light is provided inside the extension pipe main body. And the signal line is connected to a signal line connector, and the signal line connector is fixed to an end of the extension pipe main body.

[Action]

According to the present invention, the indicator light is provided at the tip of the extension tube, and the signal line of the indicator light is disposed inside the extension tube main body. If you visually check the floor, you can see the indicator light at the tip of the extension tube at the same time. Therefore, it is not necessary to keep an eye on the hand to see the indicator light as in the related art, so that the operability can be improved without lowering the cleaning workability.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In FIGS. 1 to 3, (1) is mainly composed of an extension pipe made of a resin, and is provided with indicator lamps (2) of two colors, red and green, at the end thereof, and an indicator lamp for the indicator lamp therein. Signal line (3) and power cord (4) are arranged along the length direction. Signal line connectors (5) are connected to both ends of the signal line (3), and these signal line connectors (5) are fixed to the end face of the extension pipe main body (1). The power cord (4) is provided to supply power to the floor nozzle (6) having a built-in rotary brush (not shown) driven by a motor. 7), and these power supply connectors (7) are also fixed to the extension pipe main body (1) and the end face similarly to the signal line connector (5), and the extension pipe (A) is formed by the above configuration. It is.

The indicator light (2) can be attached to any part that is easily visible as long as it is located at the tip of the extension pipe body (1) near the floor nozzle (6), as shown in FIG. It is more preferable that the power supply connector (7) is disposed on the upper surface of the power supply connector (7) and is connected to the signal line (3) extended to the vicinity thereof.

(8) is a tip pipe, which is connected to a hose (9) communicating with the main body of the vacuum cleaner. An optical sensor (10) is provided inside the tip pipe (8). As shown in FIG. 3, the sensor (10) is connected to a detection circuit (11). The hose (9) has a floor nozzle (6) and a second power cord (1) of a detection circuit (11).
2) and a second signal line (1) drawn from the detection circuit (11).
3), and the second signal line (13) is connected to a motor control circuit (14) built in the main body of the vacuum cleaner.

When the operation is described in the above configuration, the extension pipe (A) is usually a plurality of spliced pieces (two spliced pieces in the illustrated example). ) To be used. Dust sucked in by the operation of the vacuum cleaner is the sensor (10) in the tip pipe (8).
The detection signal is input to a detection circuit (11), and when dust is detected, the indicator lamp (2) is turned on as a detection display and a motor control circuit (14) in the main body of the vacuum cleaner is turned on. A control signal is sent to control the suction force of the motor (M).

In this embodiment, since the indicator light (2) indicating the amount of sucked dust is attached to the end of the extension pipe (A), the floor nozzle (6) is reciprocated by the end pipe (8). At this time, even if the tip pipe (8) is pulled near, the floor near the floor nozzle (6) and the indicator light (2)
Can be seen at the same time because the viewing angles of the images are almost the same. Therefore, the display of the magnitude of the dust amount is easy to see, the operability is remarkably improved, and the workability is improved.

The indicator lamp (2) is only required to be located on the floor nozzle (6) side with the extension pipe (A) connected, and need not be provided at the intermediate portion. In addition, it goes without saying that the signal line connector (5) is not required in a portion ahead of the indicator lamp (2).

〔The invention's effect〕

As described above, when using the extension tube of the vacuum cleaner of the present invention, an indicator light is provided at the distal end of the extension tube main body, and the signal line of the indicator light is disposed inside the extension tube main body,
Further, since the signal line is connected to the signal line connector and the signal line connector is fixed to the end of the extension pipe main body, it is easy to see the magnitude of the amount of dust, and the indicator lamp and the cleaning lamp are used. The floor surface can be viewed at the same time, and the excellent effect that the operability is remarkably improved and the workability can be improved is exhibited.

In addition, gaps between furniture where floor nozzles cannot be used are often cleaned by removing the floor nozzle and using the end of the extension tube. In such a case, an indicator light is provided at the end of the extension tube. Thus, a practical effect is obtained in that the floor surface and the indicator light in the gap between the furniture can be cleaned while simultaneously being visually recognized.

[Brief description of the drawings]

1 to 3 show an embodiment of an extension pipe of a vacuum cleaner according to the present invention. FIG. 1 is a longitudinal sectional view showing an internal structure, and FIG.
The figure is an exploded perspective view showing a state in which a plurality of extension pipes are connected between a floor nozzle and a tip pipe, and FIG. 3 is a block diagram showing a circuit configuration of a vacuum cleaner. 4 to 6 show a conventional example, FIG. 4 is a longitudinal sectional view showing an internal structure, and FIG. 5 is an exploded perspective view showing a state in which a plurality of extension pipes are connected between a floor nozzle and a tip pipe. FIG. 6 is a longitudinal sectional view showing the tip pipe. (1) ... extension tube main body, (2) ... indicator light, (3) ...
Signal line, (5) ... Signal line connector.

Claims (1)

(57) [Claims] An indicator light is provided at a distal end portion of an extension pipe main body, and a signal line of the indicator light is disposed inside the extension pipe main body.
Further, an extension pipe for a multi-joint vacuum cleaner, wherein the signal line is connected to a signal line connector, and the signal line connector is fixed to an end of the extension pipe main body.