JPS60160932A - 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 so-called applied vacuum cleaner in which a vacuum cleaner main body is connected to a floor nozzle having a rotating brush.

Conventional Structure and Problems Conventionally, this type of vacuum cleaner has been provided with a dust suction fan motor inside the vacuum cleaner body and a rotary brush drive motor inside the floor nozzle. However, this method requires two motors, which poses problems in terms of weight and cost, and the floor nozzle itself becomes large, making cleaning work difficult. In order to further improve this, we installed a fan motor for dust extraction at the bottom of the main body of the vacuum cleaner.
It was considered that a rotating brush could be connected to this rotating shaft via a belt or the like, but it had the following drawbacks.

a. Due to the installation position of the fan motor, it is necessary to guide the air intake path from the floor nozzle to above the main body of the vacuum cleaner, so the air intake path becomes long, which increases pressure loss and reduces dust suction performance. invite

b. Because the fan motor was installed horizontally on the vacuum cleaner body, the width of the vacuum cleaner body became a dog, which caused the same problem in terms of work as described above.

OBJECTS OF THE INVENTION The present invention eliminates these conventional drawbacks and provides a vacuum cleaner that is small, compact, and easy to use.

Structure of the Invention The vacuum cleaner of the present invention includes a floor nozzle in which a rotating brush is installed, and which is rotatably connected to the floor nozzle.
The vacuum cleaner body has a built-in fan motor, filter, etc., and a flexible transmission shaft that transmits the rotational force of the fan motor to the rotating brush, and this transmission shaft is attached to either the left or right side of the vacuum cleaner body. The connecting portion between the transmission shaft and the rotating brush is located on one side of the floor nozzle opposite to the above.

Therefore, one motor can be used both for dust collection and for driving the rotating brush, making the entire vacuum cleaner smaller.

It is possible to reduce weight, improve operability, and shorten the air intake path by positioning the dust collection section with the suction side of the fan motor facing down.

In addition, the bending ratio of the transmission shaft leading to the floor nozzle is lower than that of the main body of the vacuum cleaner, thereby reducing transmission loss.

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

In Figures 1 to 4, 1 is a floor nozzle with a rotating brush 2 installed therein, and 3 is a vacuum cleaner main body with a substantially rectangular cross section that is connected to the floor nozzle 1 via a connecting tube 3' so as to be vertically movable. A fan motor 4 is housed in a vibration-proof manner slightly above the center via vibration isolators 4a and 4b made of rubber or the like. In the main body 3 of the vacuum cleaner, a dust collection chamber 6 is formed on the lower suction side of the fan motor 4 and is opened and closed by a lid 6, and between the fan motor 4 and the dust collection chamber 6. A filter 7 is interposed. Reference numeral 8 denotes a clutch mechanism as an intermediate transmission mechanism disposed at one corner of the main body 3 of the vacuum cleaner having a substantially rectangular shape, and its mounting base 9 is attached to the fan motor 4. The clutch mechanism 8 includes a bearing 12 that is parallel to the rotating shaft 10 of the fan motor 4 projecting upward and supports a latch shaft 11, and a bearing 12 that supports the latch shaft 11.
It is composed of an operating pulley 13 fixed to the main body and an idling pulley 14 which is freely rotatable. 15 is a belt stretched between the rotating shaft 10 and either one of the above-mentioned two boobies IJ, -13, 14;
3 and 14, and its operator 16a is disposed on the upper front part of the main body 3 of the cleaner. Reference numeral 17 is a non-drill projecting upward from the main body 3 of the vacuum cleaner, and reference numeral 18 is an exhaust port of the fan motor 4.

On the other hand, a bearing 20 is provided on the inside side of the floor nozzle 1 to support a pulley shaft 19 parallel to the rotating brush 2. 23 is the tension frame. And 2
4 is a flexible transmission shaft made of flexible wire, etc., one end of which is connected to the clutch shaft 11, and the other end is connected to the pulley shaft 1.
9, respectively. Further, the transmission shaft 24 is a third
As is clear from the figure, it is arranged on the left side of the main body 3 of the vacuum cleaner, and furthermore, the connection part with the pulley shaft 1e is set on the right side of the floor nozzle 1, which is opposite to the above.

In the above configuration, its function will be briefly described.

Now, when the fan motor 4 is driven by putting the belt 16 on the operating pulley 13 side, the rotational force is transmitted from the rotating shaft 10 to the belt 16 to the operating pulley 13 to the clutch shaft 11, and then via the transmission shaft 24 to the floor nozzle. It is transmitted to the pulley shaft 19 on the first side. The rotational force is then transmitted to the pulley 22 and the rotating brush 2 via the belt 23.

Therefore, dust adhering to a surface to be cleaned such as a carpet is swept up into the floor nozzle 1 by the rotation of the rotating brush 2, and then filtered by the filter 7 and stored in the dust collecting chamber 6.

In addition, when performing cleaning such as lifting, the belt switching member 16 is pushed down via the operator 16a, and the belt 16 is switched to the idle pulley 14 instead of the working pulley 13. here,
The rotational force of the rotating shaft 100 is only transmitted to the idling pulley 14 via the belt 15, and after that it does not operate at all.

With the configuration of the above embodiment, since one motor can suck dust and drive the rotating brush 2, it is possible to downsize the floor nozzle 1 and assemble the vacuum cleaner body 3. From where the dust collection chamber 6 can be located, the floor nozzle 1
The intake system path via the can also be shortened.

By the way, the transmission shaft 2 from the vacuum cleaner main body 3 to the floor nozzle 1
Reference numeral 4 indicates that the above-mentioned two parts are rotatably connected and are bent with a certain curvature due to the relationship. Here, if the transmission shaft 24 is simply guided from the main body 3 of the vacuum cleaner to the floor nozzle 1, its radius of curvature will become smaller, and therefore,
The loss in terms of power transmission becomes a problem.

However, in the above embodiment, since the transmission shaft 24 passing through one side of the main body 3 of the vacuum cleaner is guided to the other side of the floor nozzle 1 on the opposite side, the transmission shaft 24 that can be provided between the two 24 can be made longer, thereby making the radius of curvature smaller and reducing power transmission loss.

Effects of the Invention As described above, the present invention transmits the rotational force of a fan motor to a rotating brush via a flexible transmission shaft, and the transmission shaft is connected from one side of the vacuum cleaner body to the opposite side. By guiding the nozzle to one side of the floor nozzle, the following excellent effects can be achieved.

], since one motor can be used both for dust collection and for driving the rotating brush, it is possible to reduce weight and cost.

(2) As it is lighter, the floor nozzle can be made smaller, and the vacuum cleaner itself can be assembled, making cleaning work easier and significantly improving its usability.

By shortening the length of the intake path, pressure loss can be reduced.

Therefore, a product with high dust absorption performance can be obtained.

(2) Power transmission loss can be reduced by increasing the radius of curvature of the transmission shaft located between the main body of the vacuum cleaner and the floor nozzle. Therefore, the rotating brush can be rotated reliably. Additionally, since the load on the fan motor can be reduced, the dust suction performance can also be improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a front sectional view, FIG. 3 is a side sectional view, and FIG. 4 is an enlarged sectional view of essential parts. 1... Floor nozzle, 2... Rotating brush,
3...Vacuum cleaner main body, 4...Fan motor, 7...Filter, 24...Transmission shaft. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3

Claims (1)

[Claims] A floor nozzle with a rotating brush inside, a main body of the vacuum cleaner that is rotatably connected to the floor nozzle and has a built-in fan motor, filter, etc., and a flexible vacuum cleaner that transmits the rotational force of the fan motor to the rotating brush. This transmission shaft is located on either the right side of the main body of the vacuum cleaner, and the connecting part between the transmission shaft and the rotating brush is located on one side of the floor nozzle on the opposite side from the above. Vacuum cleaner set to position.