JPH0584197A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To provide a vacuum cleaner which imparts no excessive load of a bellows hose to hands when a floor suction device is operated. CONSTITUTION:An approximately globular engagement part formed on one of connecting parts of a connecting pipe 5 and a grip 3 is pivotally fitted in a recess formed in the other connecting part. By attaching one end of the hose 4 to the rear end of the pipe 5, degree of freedom in upward and downward directions is given to the hose 4 to allow the hose 4 to rotate in a vertical direction.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a vacuum cleaner.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, a grip portion 3 is formed at the other end of a bellows hose 4, one end of which is connected to a suction port of a cleaner body, and an extension pipe 2 is provided at the tip of the grip portion 3. 2. Description of the Related Art There is known an electric vacuum cleaner in which a floor surface suction tool 1 is attached to suck dust and the like into the vacuum cleaner through the floor surface suction tool 1, the extension tube 2, the grip portion 3 and the bellows hose 4.

The extension tube 2 is attached to the floor suction tool 1 so as to be rotatable in the vertical direction, and when the floor suction tool 1 is pulled by pulling the grip section 3 toward the front during cleaning. When the floor suction device 1 is pushed forward by pushing the grip portion 3, the hand height H of the grip portion 3 decreases as the floor suction device 1 moves forward.

[0004]

However, when the floor suction device 1 is pulled toward you and the hand height H of the grip portion 3 is increased, the bellows that hangs behind the grip portion 3 due to its own weight. There was a problem that the hose 4 was pulled up and an extra load was applied to the hand.

Further, when pushing the grip to push the floor suction tool 1 forward, the bellows hose 4 must be pulled forward, and there is a problem that an extra load is applied to the hand.

An object of the present invention is to provide an electric vacuum cleaner in which an excessive load of a bellows hose is not applied to the hand when operating a floor suction tool.

[0007]

SUMMARY OF THE INVENTION According to the present invention, a bellows hose having one end connected to a suction port of a cleaner body, a connecting pipe provided at the other end of the bellows hose, and a grip connected to the connecting pipe. Part, an extension pipe whose one end is detachably attached to the grip part, and a floor suction tool which is detachably attached to the other end of the extension pipe, and a connecting part of the connection pipe and the grip part. While forming a substantially spherical fitting part on one side,
The other is formed with a recess into which the fitting portion is rotatably fitted.

[0008]

With this configuration, the substantially spherical fitting portion formed on one of the connecting portions of the connecting pipe and the grip portion can be rotatably fitted into the recess formed on the other. By attaching one end of the bellows hose to the rear end of the connection pipe, the bellows hose can be given a degree of freedom in the vertical direction, and the bellows hose can be rotated in the vertical direction.

[0009]

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

FIG. 1 is a partial side sectional view of the essential parts of an electric vacuum cleaner according to an embodiment of the present invention. In the figure, the same reference numerals as those in FIG. 5 indicate the same or corresponding portions.

In FIG. 1, reference numeral 5 denotes a connecting pipe connected to the rear opening 6 of the grip portion 3.
As shown in FIG. 2, the tip has a substantially spherical fitting portion 8 having an opening 7 for allowing air to pass therethrough.

The grip portion 3 is composed of a pair of left and right cases, and a recess 9 for rotatably supporting the fitting portion 8 of the connection pipe 5 is formed at the rear end thereof, and the connection pipe 5 is provided in the recess 9 of one case. After fitting the fitting portion 8 of No. 1, the other case is fitted to the one case, and the fitting portion 8 of the connection pipe 5 is rotatably supported in the recess 9 formed by both cases. Has become.

A bellows hose 4 is attached to the rear portion of the connecting pipe 5, whereby the bellows hose 4 is attached.
Has a degree of freedom in the vertical direction with respect to the grip portion 3.

Next, the movement of the bellows hose of the thus constructed vacuum cleaner will be described.

When the floor suction tool 1 is pulled toward the front during cleaning, the hand height H of the grip portion 3 increases, and the grip portion 3 is accordingly loaded by the bellows hose 4. At this time, the load of the bellows hose 4 is applied to the connecting pipe 5, whereby the connecting pipe 5, which has formed a predetermined angle with the grip portion 3 until then, rotates downward.

Therefore, when pulling the floor suction tool 1 toward you, the load of the bellows hose 4 acts so as to rotate the connecting pipe 5 downward, so that the extra load of the bellows hose 4 is applied at hand. Therefore, the grip portion 3 can be easily pulled up.

On the other hand, when pushing the floor suction tool 1 forward, the grip portion 3 moves forward, and the bellows hose 4 is pulled forward accordingly. At this time, this pulling force is applied to the connecting pipe 5 of the grip portion 3, and thus the connecting pipe 5 that has formed a predetermined angle with the grip portion 3 rotates upward.

Therefore, when pushing the floor suction tool 1 forward, the load of the bellows hose 4 acts so as to rotate the connecting pipe 5 upwards, so that the extra load of the bellows hose 4 is applied at hand. However, the grip portion 3 can easily move forward.

As described above, when the bellows hose is attached to the connection pipe, the bellows hose can be freely rotated in the vertical direction when the floor suction device is pulled forward or pushed forward, so that the bellows hose can be easily held at hand. It is possible to prevent an excessive load from being applied.

Since the bellows hose has a degree of freedom not only in the vertical direction but also in the horizontal direction by this connecting pipe, even when the cleaning direction is changed, the cleaning can be performed only by changing the direction ahead of the grip portion. It is possible and can improve usability. Further, the twisting of the bellows hose during cleaning can be eliminated, the usability can be improved, and the cleaner body can be prevented from tipping over due to the twisting of the bellows hose.

Further, since the bellows hose is configured to rotate with respect to the grip portion just behind the grip portion, the grip portion is approximately 9 when cleaning a low place, for example.
Although the cleaning is performed by rotating the grip section by rotating it by 0 degree, the rotation of the grip portion is not transmitted to the bellows hose, and therefore the bellows hose is not twisted.

[0022]

As described above, according to the present invention, the substantially spherical fitting portion formed on one of the connecting portions of the connecting pipe and the grip portion is rotatably fitted into the concave portion formed on the other. can do. By attaching one end of the bellows hose to the rear end of the connection pipe, the bellows hose can be given a degree of freedom in the vertical direction, and the bellows hose can be rotated in the vertical direction. Therefore, the extra load of the bellows hose is not applied to the hand, and the operation of the floor suction tool is facilitated.

[Brief description of drawings]

FIG. 1 is a partial side sectional view of an essential part of an electric vacuum cleaner according to an embodiment of the present invention.

FIG. 2 is a sectional view of a main part of a grip portion of the electric vacuum cleaner.

FIG. 3 is a perspective view showing a state where a bellows hose is attached to a connection pipe of the electric vacuum cleaner.

FIG. 4 is a cross-sectional view taken along the line AA of the grip portion of the electric vacuum cleaner.

FIG. 5 is a side partial cross-sectional view of a conventional floor suction device for an electric vacuum cleaner.

[Explanation of symbols]

 1 Floor suction device 2 Extension pipe 3 Grip part 4 Bellows hose 5 Connection pipe 6 Rear opening of grip part 8 Almost spherical fitting part of connection pipe

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Isao Yoneda 2-18 Keihan Hondori, Moriguchi-shi Sanyo Electric Co., Ltd.

Claims (1)

[Claims] 1. A bellows hose having one end connected to a suction port of a cleaner body, a connection pipe provided at the other end of the bellows hose, a grip portion connected to the connection pipe, and one end of the grip portion. An extension tube detachably attached to the extension pipe, and a floor suction tool detachably attached to the other end of the extension tube, and a substantially spherical fitting portion on one of the connection portions of the connection pipe and the grip portion. The electric vacuum cleaner is characterized in that a concave portion into which the fitting portion is rotatably fitted is formed on the other side.