JPS60194920A - 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 attached to a surface to be cleaned.

2. Description of the Related Art Conventional Structure and Problems Conventionally, vacuum cleaners are known that are equipped with a rotating brush that separates dust attached to a surface to be cleaned from the surface to be cleaned.

Its configuration will be explained based on FIGS. 1 and 2.

In the figure, 1 is a vacuum cleaner main body, and an electric blower 2 is built into this vacuum cleaner main body 1. Reference numeral 3 designates a floor nozzle, inside which a rotary brush 4 is rotatably supported by a bearing 5, and the rotary brush 4 is rotated by a rotary plan electric motor 6 and a belt 7. Dust removed from the surface to be cleaned by the rotating brush 4 is sucked into a dust collection chamber 11 configured below a filter 10 through a suction port 8 and a suction passage 9.

Reference numeral 12 denotes a rotary brush lever that stops the rotation of the rotating brush 40 times when the surface to be cleaned does not require the rotating brush 4, such as a floor or a tatami mat.

However, in the above configuration, since the belt 7 is stretched between the rotary brush motor 6 and the rotary blanket 4, the area below the belt 7 cannot be cleaned, and the floor nozzle cannot be cleaned. The entire width cannot be used effectively.

OBJECTS OF THE INVENTION In order to solve the two drawbacks, the present invention utilizes a flexible power transmission shaft for transmitting driving power to a rotating planar,
To provide a vacuum cleaner which improves cleaning efficiency by eliminating parts that cannot be cleaned when power is transmitted by a belt and by effectively utilizing the entire floor nozzle.

Structure of the Invention In order to achieve this object, the vacuum cleaner of the present invention drives the rotating brush using a drive having a flexible power transmission shaft and a transmission member disposed above the shaft center of the rotating brush. This is done by a device. With this configuration, power can be transmitted to the rotating brush without creating areas that cannot be cleaned, so the entire width of the floor nozzle can be used effectively.

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

In FIGS. 3 to 6, 13 is a vacuum cleaner main body, and 14 is a floor nozzle provided at an end of the vacuum cleaner main body 13.

An electric blower 15 is vertically provided on the inside upper part of the cleaner body 13, and a first shaft 17 parallel to the electric blower shaft 16 is supported by a first bearing 18. A driving pulley 19 and an idle pulley 20 are attached to the first shaft 1.

These clutch mechanism components are supported by fixtures 21 and fixed to the electric blower 15 with screws 22. Also,
This entire body is supported by the cleaner body 13 via a front vibration isolator 23 and a rear vibration isolator 24. .

A motor belt 25 is selectively applied to the electric blower shaft 16, drive pulley 19, and idling pulley 20 by a switching lever 26 and a switching shaft 2γ.

One end of the first shaft 1A is connected to a flexible power transmission shaft 28 that constitutes a drive device 29, and this power transmission shaft 2B passes through the inside of the cleaner body 13 and connects to the floor nozzle 14.
It is connected to a transmission member 30 provided inside. This transmission member 30 constitutes two drive devices together with the power transmission shaft 28, and in the embodiment, is composed of a worm having a gear configuration.

This worm is engaged with a transmission portion 32 such as a worm gear formed by providing a slit 31 in the middle of a rotating brush 33. Note that the relationship between the worm and the worm gear may be a friction transmission type. Vacuum cleaner body 13 and floor nozzle 14
are rotatably connected by a connecting tube 34.

Further, a dust collection chamber 36 having a filter 36 installed therein is configured in the lower part of the cleaner body 13.

37 is a handle attached above the vacuum cleaner body 13.

The rotating brush 33 is arranged over the entire width of the floor nozzle 14. In addition, the transmission member 30 and the transmission section 3
2 is engaged above the axial center of the rotary swing 33 (on the side opposite to the floor surface side).

The output of the electric blower 15 housed in the vacuum cleaner body 13 is
Electric blower shaft 16. The power is transmitted from the first shaft 17 to the power transmission shaft 28 via the motor belt 25° driving pulley 20. The rotational force transmitted to the power transmission shaft 28 is transmitted to the rotating brush 33 via the transmission member 30 inside the floor nozzle 14.

The dust separated from the surface to be cleaned by the rotary puji 733 is
Dust collection chamber 36 below filter 35 through connecting pipe 34
It accumulates.

In addition, in the case of cleaning surfaces that do not require the 5-rotation brush 33, the switching lever 26 can be switched to
The motor bells 1 and 25 are replaced by the idling pulley 20 by the shaft 2a.

Since the rotating blade 33 is arranged over the entire width of the floor nozzle 14, there are no areas that cannot be cleaned. In addition, the drive device 2
Since the engagement between the transmission member 30 of No. 9 and the transmission portion 32 of the rotary bra/33 is performed above the axial center of the rotary bran 33, it may happen at any time if the area below the engagement portion cannot be cleaned. do not have.

As described above, according to this embodiment, the power transmission shaft 28 is used to transmit power from the electric blower 16 to the rotary blower 33, and the parts that cannot be cleaned when power is transmitted using a belt are removed. Since it can be removed, the rotating brush can be placed over the entire width of the floor nozzle for effective cleaning.

'-1: In the case of a belt, there were problems such as slippage due to dust entering the belt part, but this can be eliminated by using a worm and worm gear system.

Effects of the Invention As described above, in the vacuum cleaner of the present invention, power is transmitted to the rotating brush in the floor nozzle using the power transmission shaft and its transmission member, and by considering the arrangement of the transmission part, the power is transmitted to the rotating brush in the floor nozzle. This eliminates the impossible-to-clean parts and arranges rotating brushes over the entire floor nozzle, which has the excellent effect of improving cleaning efficiency.

[Brief explanation of drawings]

Fig. 1 is an external perspective view showing a conventional vacuum cleaner, Fig. 2 is a sectional view thereof, and Fig. 3 is an external perspective view of a vacuum cleaner showing an embodiment of the present invention. FIG. 6 is a sectional view of the same, and FIG. 6 is an enlarged sectional view of the same part. 13... Vacuum cleaner body, 14... Floor nozzle, 28... Power transmission shaft, 29... Drive device, 30... Transmission Part, 33...
rotation plan. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (3)

[Claims] (1) Consists of a vacuum cleaner body with a built-in electric blower and filter, a floor nozzle with a built-in rotating brush that is rotatably attached to the vacuum cleaner body, and a drive device that drives the rotating brush. A vacuum cleaner comprising a transmission shaft and a transmission member driven by the power transmission shaft and disposed above the shaft center of the rotating brush to transmit power to the rotating brush. (2) The vacuum cleaner according to claim 1, wherein the rotating brush and the transmission member are connected by a worm and a worm gear. (3) The vacuum cleaner according to claim 1, wherein the power source for driving the rotating brush is an electric blower.