JPS6122829A - Dust sucking device of cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] <Technical field of invention> The present invention relates to a dust suction tool for a welfare vacuum cleaner.

<Prior Art> As this type of dust suction tool, there is a conventional dust suction tool shown in FIGS. 6 to 8.

That is, in the figure, 22 is the dust suction tool main body, and the upper case 10
and a T case 12 which is assembled thereto with screws or the like. Reference numeral 13 denotes a bumper attached along the outer periphery of the assembly portion of the upper case 10 and lower case 12 to prevent scratches on furniture etc. when using the dust suction tool. 1
T is a suction port attached to the lower case 12 at -140, and 9 is an elbow connected to the dust suction device main body 22, which can rotate. 15 and 14 are the front brushes and brushes provided near the suction port 17 of the lower case 12, respectively; 11 is the dust suction tool main body 22;
16 is a shaft for moving the roller along the floor surface. The roller 11 is attached to the upper case 10 and the lower case 12 so that the shaft 10 can be freely rotated between the upper case 10 and the lower case 12.

However, in such a conventional dust suction tool, the dust suction tool main body 22 is moved by the roller 11, and this roller 11 can only rotate in the front and rear directions of the dust suction tool main body 22. Therefore, when it is desired to move the dust suction tool main body 22 laterally to the left or right, the main body 22 must be moved or lifted with excessive force due to the large resistance. .

As a result, when it is desired to change the cleaning direction, troublesome work is required, resulting in poor workability.

<Summary of the Invention> Therefore, the present invention is based on the above-mentioned conventional situation, and replaces the conventional roller with a spherical rolling element as a means for moving the dust suction tool main body along the floor surface. In particular, the purpose is to make the direction of movement of the dust suction tool body free, thereby improving cleaning work efficiency. - <Embodiment of the Invention> Hereinafter, an embodiment of the present invention will be described based on FIGS. 1 to 5. In these figures, the same elements as in FIGS. 6 to 8 are given the same reference numerals to simplify the explanation.

Figure 1 shows a vacuum cleaner, in which 1 is a main body case with a built-in electric blower 2, 3 is a dust collection case detachably attached to the front of the main body case 1, and 4 is the dust collector. An insertion pipe is detachably connected to the suction port of the dust case 3, 5 is a hose, 6 is a hand switch for controlling the operation of the electric blower 2, and 7 is a pipe for holding the extension pipe 8.

The dust suction tool 21 is used by inserting its elbow 9 into the extension pipe 8.

As shown in FIGS. 2 to 5, the lower case 12 of the main body 22 of the dust suction tool 21 includes spherical rolling elements, that is, resin, for moving the dust suction tool main body 22 along the floor surface. A pole 18 made of rubber or L metal is attached.

Such a pole 18 is attached to the lower case 1 as shown in FIG.
2. A recessed portion 23 formed on the lower surface and having a spherical inner surface.
It is supported by the lower case 12 by fitting and fixing the stopper 19 into the annular groove 24 formed at the opening of the recess 23. Recess 2
A protrusion 20 is provided on the inner surface of the L1 ball 1B so that the protrusion 20 can come into contact with the outer circumferential surface of the L1 ball 1B at a suitable position, thereby reducing the frictional resistance when the pole 18 is transferred.

By attaching the ball 18 to the dust suction device 21, the dust suction device main body 22 can be moved freely outward along the floor surface, and can be moved not only in the front and rear directions but also in the lateral direction. When moving the dust suction tool body 22 laterally, there is no need to forcefully shift or lift the dust suction tool main body 22 as in conventional methods, and the cleaning direction can be changed smoothly, making the work easier. can be made easy.

Further, according to this configuration, since the protrusion 2θ is provided on the surface of the lower case 12 that receives the pole 18, the resistance when the ball 18 rolls can be reduced, and the ball 18 can be rolled smoothly. Furthermore, unlike conventional rollers, the ball 18 does not need to be attached by being sandwiched between the upper case 10 and the lower case 12, but is inserted and supported in the recess 23 of the lower case 12. There is no suction of air into the support part, and no dust can enter the support part.

<Effects of the Invention> As explained above, according to the present invention, the means for moving the dust suction tool body by applying oil to the floor surface is replaced with a conventional roller and a spherical rolling element is used. The main body can be moved in any direction, improving cleaning efficiency.

[Brief explanation of the drawing]

FIG. 1 is a front view of a vacuum cleaner showing an example of how the dust suction tool is used, FIGS. 2 to 5 are views showing an embodiment of the dust suction tool according to the present invention, and FIG. Figure 3 is a sectional view taken in the direction of the arrows in Figure 2, Figures 4 and N5 are side and bottom views of the pole attachment part, respectively, and Figures 6 to 8 each show an example of a conventional dust suction tool. In the drawings, FIG. 6 is a bottom view, FIG. 7 is a side view, and FIG. 8 is a sectional view taken along the line 1-1 in FIG. 10... Upper case 12... Lower case 17.
...-Suction port 18...Ball 19...Stopper 21...Dust suction tool 22...-Dust suction tool body 23
... recessed part

Claims (1)

[Claims] A dust suction tool for a vacuum cleaner, characterized in that a spherical rolling element is attached for moving the dust suction tool main body along a floor surface after a suction port is formed in the dust suction tool main body.