JPS60114228A - 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 the Invention The present invention relates to a vacuum cleaner equipped with a rotating brush for removing dust firmly attached to a surface to be cleaned.

Conventional structure and its problems Traditionally, a rotating brush was provided to separate dust stuck to the surface to be cleaned from the surface to be cleaned. Vacuum cleaners that do not waste water are known.

Its configuration will be explained based on FIG. In the figure,
1 is a vacuum cleaner body, and 2 is a floor nozzle.

The vacuum cleaner main body 1 is provided with an electric blower 3 having an electric blower shaft 4 and an electric blower pulley 5. A first shaft 6 is supported via a first bearing 7 in parallel with the electric blower shaft 4, and the first shaft 6 is provided with a power transmission pulley 8 and an idling goo υ-9. These Boo IJ-5,8
A motor belt 10 is passed around the selector switch 1.
1, the motor belt 10 can be selectively switched between the power transmission pulley 8 and the full rotation gear υ-9. A power transmission shaft 13 such as a flexible wire is attached to one end of the first shaft 6, and this power transmission shaft 13 is connected to a floor nozzle shaft 15 parallel to a rotating brush 14 provided in the floor nozzle 2. There is.

A rotating brush belt 18 is placed around a floor nozzle pulley 16 and a rotating brush pulley 17 on a floor nozzle shaft 16. In addition, 19 is a filter, 20 is a dust collection chamber,
21 is a handle, and 22 is a handle grip.

The operation of the conventional vacuum cleaner configured as described above will be described below.

The output of the electric blower 3 installed inside the casing 1 of the body of the removal machine is transmitted from the electric blower shaft 4 to the power transmission shaft from the first shaft 6 via the motor belt 10 and the power transmission pulley 8. 13. Power transmission shaft 1
3 is transmitted from the floor nozzle shaft 15 inside the floor nozzle 2 to the rotating brush 1'4 via the floor nozzle pulley 16, the rotating brush belt 18, and the rotating brush pulley 17. Therefore, the rotating plan 14 rotates and sucks the dust separated from the surface to be cleaned, such as a carpet, into the dust collecting space 20 in front of the filter 19.

In addition, when the surface to be cleaned does not require the rotating brush 14, such as a floor or tatami mat, the switching shaft 12 is moved by the switching switch 11, the motor belt 10 is hooked on the idling pulley 9, and the rotational force is transferred to the power transmission shaft. Here, when the rotating brush 14 is locked, the motor belt 10 or the rotating brush belt 18 is prevented from slipping and overloading the electric blower 3.

However, in the above configuration, since the rotating belt is directly reloaded, the load applied to the belt is large.
Furthermore, when the rotating brush is locked, the belt slips, resulting in serious damage to the belt and the possibility of breakage.

OBJECTS OF THE INVENTION In view of the above drawbacks, the present invention provides a rotating brush switching clutch and a torque limiter when the rotating brush is locked, without damaging the belt by applying a large load.

Structure of the Invention In order to achieve this object, the vacuum cleaner of the present invention uses a permanent magnet coupling in the middle of the power transmission system of the rotating brush. Therefore, according to this configuration, when the rotating brush is locked, the two couplings are separated, so that the belt is not damaged and the broken rotating brush can be switched.

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

In FIGS. 2 to 4, 31 is a vacuum cleaner body, 32 is a floor nozzle nozzle 33 is an electric blower installed inside the cleaner body 31, and the electric blower shaft 34 has a first shaft electrically supported;
38 is a power transmission shaft such as a flexible pull wire connected to -mY+ to the first shaft 36, 39 is a pulley of a rotating brush 39' that is pivotally supported in the floor nozzle 32, 40 is a filter, 41 is a dust collection chamber, 42 is a handle, 43 is a handle, and the above structure is the same as that shown in FIG.

A power transmission pulley 44 is attached to the first shaft 36, and a motor belt 45 is placed between this and the electric blower shaft pulley 35.

The floor nozzle 32 side of the power transmission shaft 380 is connected to an intermediate shaft 4 supported by an intermediate bearing 46, as shown in FIG. The intermediate shaft 11] housing 48 and the intermediate shaft side magnet 49 are provided on the intermediate shaft 4. Also, the pulley shaft side magnet 5 facing this intermediate shaft side magnet 49
The pulley shaft side having 0 . . . The housing 51 is rotatably supported by a pulley shaft 52 protruding from one side thereof being pivotally supported by a pulley bearing 53. A switching lever 55 is attached to the pulley shaft 62 for moving the pulley shaft 32 in the axial direction via a bearing 64.

56 is a floor nozzle pulley 57 attached to the pulley shaft 53
This is a rotating brush belt stretched between the rotating brush pulley 39 and the rotating brush pulley 39.

Next, the operation of the vacuum cleaner configured as described above will be explained.

The output of the electric blower 33 installed inside the vacuum cleaner body 31 is
From the electric blower shaft 34 to the electric blower boo IJ-35,
The power is transmitted from the first shaft 36 to the power transmission shaft 38 and further to the intermediate shaft 47 via the motor belt 45 and the power transmission pulley 44, and the intermediate shaft side housing 48 and intermediate shaft side magnet 49 rotate. When the intermediate shaft side magnet 49 rotates,
Pulley - The same pulley due to the magnetic field with the ilb side magnet 50
The Boo 1)-11111 housing 61 equipped with the feeding magnet 29 also rotates, and this rotation is transmitted to the rotary puller/39' via the pulley shaft 529, the rotating brush belt 56, and the rotating brush pulley 39, and is rotated. The dust separated from the surface to be cleaned by the rotating brush 39' is sucked into the dust collection chamber 41 in front of the filter 40.

If you do not want to rotate the rotating brush 39', use the switching lever 6.
6, the distance between the intermediate shaft side magnet 49 and the pulley side magnet 50 is increased to prevent rotation from being transmitted to the pulley side magnet 5o.

When the rotating brush 39' is locked, the pulley-side magnet 5Q stops and only the intermediate shaft-side magnet 49 rotates, functioning as a torque limiter.

According to this embodiment, by using a permanent magnet coupling in the power transmission section, the rotating brush 39' can be rotated/stopped by changing the distance between the magnets.
'Furthermore, when the rotating brush is locked, only the intermediate shaft side magnet 49 on the drive side rotates, so that the belt is not damaged by applying a large load.

Effects of the Invention As described above, the present invention uses a permanent magnet coupling in the power transmission part of the rotating brush, so that even when the rotating brush is locked, there is no large load applied to the belt or damage to the belt, and the rotating brush It is easy to control the rotation of the machine, and its effects are impressive.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a conventional vacuum cleaner, Fig. 2 is a front sectional view of a vacuum cleaner according to an embodiment of the present invention, Fig. 3 is a side sectional view, and Fig. 4 is a permanent magnet coupling part. It is an enlarged side view. 31... Vacuum cleaner body, 32... Floor nozzle, 33... Electric blower, 38... Power transmission means (power transmission shaft), 4o... ...Filter, 49.60...Coupling (intermediate shaft side magnet, boolean shaft side magnet) 0 Name of agent Patent attorney Toshio Nakao and 1 other person Figure 2

Claims (1)

[Claims] It consists of a vacuum cleaner body with a built-in electric blower and a filter, a floor nozzle with a built-in rotating brush, and a power transmission means for transmitting the rotation of the electric blower to the rotation plan, and a part of the power transmission system via the power transmission means. is a vacuum cleaner equipped with a coupling using a permanent magnet.