JPS59181116A - Electric 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 FIELD OF INDUSTRIAL APPLICATION The present invention relates to a vacuum cleaner having a rotating brush built into a floor nozzle.

Structure of a conventional example and its problems FIG. 1 shows the driving part of a rotating brush in a conventional vacuum cleaner of this type. Part of the bottom plate 4
It is designed to protrude from a suction port 6 formed in the. Reference numeral 6 denotes a belt for transmitting the rotational force of a drive source 7 such as a motor to the rotating brush 1, and is stretched between a part of the pulley of the rotating brush 1 and the drive source 7.

By the way, the purpose of the rotating brush 1 is to raise the dust on the surface to be cleaned, such as a carpet, to increase the dust absorption efficiency of the floor nozzle.For this purpose, it is recommended to use a brush body 3 that matches the properties of the surface to be cleaned. desirable. However, it is impossible to deal with many types of surfaces to be cleaned with one type of brush body 3, and if many types of brush bodies 3 are arranged in one brush 1, each brush body 3 becomes unable to perform its functions adequately. Therefore, a plurality of rotating brushes 1 having brush bodies 3 suitable for the characteristics of cleaning 1ni are required. It is desirable to use a rotating brush 1 that matches the characteristics of the surface to be cleaned by replacing it each time.

However, in the conventional one as shown in FIG. 1, in which a belt 6 is directly stretched between the rotating brush 1 and the driving source 7, the tension of the belt 6 is as high as 3 to 1 kg. Replacing them was a very laborious task, which was difficult for women who were weak. Therefore, one type of rotating brush 1 is always used, which not only reduces the dust suction efficiency depending on the surface to be cleaned, but also causes problems such as damaging the surface to be cleaned. Disadvantage - TPS deleted,
This ensures improved dust suction efficiency and prevention of damage to the surface to be cleaned.

Structure of the Invention The present invention provides auxiliary boots IJ-'f on both sides in the radial direction of a part of the pulley provided on the rotating brush, a belt is stretched between the drive source and these auxiliary pulleys, and the rotating brush is disposed on the floor nozzle. When installing the rotating brush, a part of the pulley provided on the rotating brush is placed in pressure contact with the belt between the auxiliary pulleys, and is fixed with a bottom plate, etc., so that the rotating brush can be attached and detached easily.
B is made easier.

Description of examples Examples thereof will be described below with reference to the accompanying drawings.

Figures 2 to 7 show examples implemented in applied vacuum cleaners, in which 21 is a floor nozzle with a built-in rotating brush 22, 23 is a fan motor 24, and a dust collector (not shown) is installed on the suction side. Mainly the vacuum cleaner installed inside. The floor nozzle 21 has a step-shaped rear end, extends to both sides of the cleaner body 23, and is rotatably connected to the cleaner body 23. 25 is a handle, 26 is a hand switch, 27 is a tray for sealing the dust collection part of the main body 23 of the vacuum cleaner, 28 is a lamp for illuminating the surface to be cleaned, 29
3o is a bumper to prevent scratches on furniture, etc., and 3o is a bottom plate. Reference numeral 31 denotes a rotating shaft of the fan motor 24 whose tip extends into the interior of the nozzle 21, and a belt 33 is stretched between this and a pair of auxiliary pulleys 32 spaced apart. The rotary brush 22 is constructed by installing a brush body 34 in the spiral direction of a curved surface, and is rotatably attached to a shaft 36 supported by supports 36 at both ends via a bearing 37 such as a bearing. The support 36 consists of a cover part 38 that completely prevents dust from entering the bearing 37 and a shaft support part 39 that fixes the shaft 36. The shaft support portion 39 is held between the floor nozzle 21 and the bottom plate 3o. And rotating brush 22! i A part of its circumferential surface is in pressure contact with the belt 33 between the auxiliary pulleys 32.

In other words, the rotational force of the fan motor 24 is transferred to the rotating shaft 31-
It is transmitted to the P belt 33-+rotary brush 22, and the rotary brush 22 is thereby rotationally driven.

In the above configuration, the auxiliary pulley 32 is the rotary brush 2
The belt 33 is located on both sides of a part of the pulley of the rotary brush 22, and is in a positional relationship such that the belt 33 is brought into pressure contact with a part of the pulley of the rotating brush 22. Therefore, the failure of the rotating brush 22 to the floor nozzle 21 can be avoided by incorporating a part of the pulley of the rotating brush 22 into the belt 33 between the auxiliary pulleys 32, as shown in FIGS. 4. As shown in FIG.
1 and bottom plate 3o to fix it.

Since the force used to attach and fix the rotary brush 22 is a pushing force, a large force is easily applied, and therefore the rotary brush 22 can be replaced very easily.

The length of the brush body 34 depends on the surface to be cleaned.

Various rotating brushes 22 are prepared depending on the side beams,
In addition, by using these properly, a high dust absorption rate can be obtained by cleaning suitable for the surface to be cleaned.

In the above embodiment, the fan motor of the vacuum cleaner was used as the driving source for the rotating brush, but of course the motor for driving the rotating brush may also be used for the floor nozzle, and an intermediate transmission mechanism such as a twisted intermediate pulley may be used. It may be something.

Effects of the Invention As is clear from the embodiments described above, the present invention provides a belt to a rotating brush using a plurality of auxiliary pulleys.

Since the mechanism uses pressure contact to transmit rotational force, the rotating brush can be attached by pressing it against the belt, which makes the work much easier, and the rotating brush can be replaced very easily. It became.

In addition, it is possible to use a rotating brush suitable for the surface to be cleaned (9), and the dust suction efficiency can be improved and the surface to be cleaned can be reliably prevented from being damaged.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a conventional rotary brush drive unit, and Fig. 2 is an implementation of the present invention. FIG. 3 is a cross-sectional view of the floor nozzle portion, FIG. 4 is a longitudinal sectional view thereof, and FIG. 6 is a partial partial view of the rotating brush. FIG. 7 is a schematic diagram of the rotary brush drive section, with FIG. 6 showing the state when the rotary brush is not installed and FIG. 7 showing the state when the rotary brush is attached. 21... Floor nozzle, 22... River... Rotating brush,
23... Vacuum cleaner main body, 24... Fan motor, 31... Drive source (rotating shaft), 32...
...Auxiliary Boo IJ-133...Belt 0 Name of agent Patent attorney Toshi Nakao and 1 other person 1st
Figure 2 Figure 4 Figure 9 Figure 5

Claims (1)

[Claims] It is connected to the main body of the vacuum cleaner with a fan motor inside, and to the suction side of this main body of the vacuum cleaner, and is in pressure contact with the floor nozzle with a built-in rotating brush and a part of the pulley of the rotating brush, so that the rotational force of the drive source is transferred to the same rotating brush. A vacuum cleaner completely equipped with a belt for transmitting data, and a plurality of auxiliary pulleys arranged on both sides of the part of the pulley in the radial direction so as to bring the belt into full pressure contact with the part of the pulley.