JPH0531049A - Vertical vacuum cleaner - Google Patents

Abstract

PURPOSE:To provide a vertical vacuum cleaner with calm operation noise and good operability by arranging two exhaust passages on both sides and the upper section of a dust collection chamber, and providing exhaust ports on the side of a cleaner main body. CONSTITUTION:The exhaust air from a fan motor 12 is exhausted from exhaust ports 41, 42 through exhaust passages 39, 40 provided on both sides of a dust collection chamber 14. The exhaust passages 38, 39 are cut off by a suction port 35. The exhaust port area of the exhaust port 41 is set smaller than that of the exhaust port 42. The exhaust port area on the exhaust passage 39 side having a shorter passage and a smaller pressure loss is set smaller so that the exhaust air is made difficult to flow, and the exhaust port area on the exhaust passage 40 side having a longer passage, many bent positions, and a larger pressure loss is set larger so that the exhaust air is made easy to flow. The noise of the whole cleaner can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an upright type electric vacuum cleaner used in general households.

[0002]

2. Description of the Related Art Conventionally, this type of vertical vacuum cleaner has a structure as shown in Japanese Utility Model Laid-Open No. 2-116247.

That is, in FIG. 9 and FIG. 10, a cleaner main body 2 having a fan motor 1 built-in, and this cleaner main body 2
Is equipped with a floor nozzle 5 connected to the suction side of the rotary brush 3 and a small motor 4 for driving the rotary brush 3, and the dust sucked from the floor nozzle 5 passes through a connection hose 6 and is stored in a paper bag 7. The clean airflow passed through the fan motor 1 and was exhausted from an exhaust port 8 provided in the immediate vicinity of the fan motor 1.

[0004]

However, in such a structure, since the fan motor 1 and the exhaust passage 9 to the exhaust port 8 are short, the rotation noise and wind noise generated by the fan motor 1 are not generated. The sound was very loud and the noise was high because the sound was hardly muted and went out through the exhaust port 8.

Therefore, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a vertical vacuum cleaner which operates quietly and is easy to use.

[0006]

In order to achieve the above object, the present invention is directed to a cleaner main body having a fan motor built in a lower part of a dust collecting chamber and connected to the suction side of the cleaner main body. A floor nozzle is provided, two exhaust passages for passing exhaust air from the fan motor are provided on both side surfaces and an upper surface portion of the dust collection chamber, and an exhaust port is provided on one side of the cleaner main body to
It is the exhaust from the exhaust flowing through the passage.

Further, both side surfaces of the dust collecting chamber and either side surface of the two exhaust passages arranged on the upper surface portion are shut off, and the shutoff portion is sandwiched between the side surfaces of the cleaner main body on the shutoff side. Thus, two exhaust ports are provided, and one place allows the exhaust gas flowing from the exhaust passage on one side surface of the dust collecting chamber to flow out, and the other place passes through the other side surface of the dust collecting chamber and the upper surface portion. The exhaust gas flowing out from the exhaust passage with many bends is discharged.

Furthermore, the exhaust area of the exhaust port having the longer exhaust passage, which has many bent portions flowing through both side surfaces and the upper surface of the dust collecting chamber, is equal to the exhaust port having the shorter exhaust passage only on the side surface of the dust collecting chamber. It is set larger than the exhaust area of.

[0009]

According to the present invention, since the exhaust passage from the fan motor is provided as a long passage on both side surfaces and the upper surface of the dust collecting chamber, the sound is attenuated by the time it comes out of the exhaust port, and the noise level is reduced. Get lower.

Further, even if there is a pressure loss in the exhaust passages of the two passages or a difference in passage length by shutting off the exhaust passages of the two passages connected to each other and providing an exhaust port in each of them,
The exhaust is made to flow through each passage,
More sound attenuation effect comes out.

Further, the exhaust passage is long and there are many bent portions of the passage, and the area of the exhaust port with the higher passage pressure loss is set larger than the area of the other exhaust port with the lower passage pressure loss. It was designed so that the exhaust air would be discharged into the two passages in a well-balanced manner, and in addition, the noise could be reliably reduced, and quiet cleaning of the driving noise was possible.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.
Will be described with reference to.

Reference numeral 11 denotes a cleaner mainly containing a fan motor 12, and the cleaner main body 11 has a dust collecting chamber 14 in which a paper bag 13 for collecting dust is stored, and a cord reel 1.
5 are provided. As shown in FIG. 4, the cord reel 15 is obliquely arranged with respect to the cleaner main body 11, and the cord outlet 16 can also be pulled out obliquely rearward. Also, in the rear part of the cleaner main body 11,
A handle 17 is arranged so as to be extendable and contractible, and a handle storage portion 18 of the cleaner main body 11 that stores the handle 17 is provided.
Is formed in front of the fan motor chamber 19 housing the fan motor 12, and is housed without protruding rearward from the fan motor chamber 19. A handle body 20 is arranged at the upper end of the handle 17. The handle body 20 is provided with a hand switch 21, which is electrically connected to an electric control circuit 23, a fan motor 12 and the like by a curl cord 22 which is expandable and contractible and is arranged in the handle 17. The retractable structure of the handle 17 is as follows.
The handle 17 has a pipe shape and has a plurality of holes 24. A pin 26 fixed to the buckle 25 is locked in the hole 24. Next, the knob portion 2 of the buckle 25
When 7 is pushed downward, the buckle 25 is rotated around the rotation shaft 28 to disengage the pin 26 that is locked in the hole 24 of the handle 17, and when the handle 17 is pulled up, the handle 17 The pin 26, which is constantly in pressure contact with the handle 17 by the spring 29, enters into the hole 24 provided in the lower portion, and the handle 17 is locked.

On the suction side of the cleaner main body 11, there is provided a floor nozzle 33 containing a small motor 32 which is interlocked with a rotating brush 30 and a belt 31. 34 is a vacuum cleaner main body 11
And a connection hose that connects the suction between the floor nozzle 33 and
One of the connection hoses 34 is attachable / detachable to / from the floor nozzle 33 by a connection pipe 35, and the other is attachable / detachable to / from an intake port 36 provided in the cleaner main body 11 by an L-shaped pipe 37. There is.

The dust sucked from the suction port 38 of the floor nozzle 33 is stored in the paper bag 13 through the connection hose 34, and the exhaust air from the fan motor 12 is exhaust passage 39 provided on both sides of the dust collection chamber 14. Exhaust port 4 through 40
Exhausted from 1, 42. The exhaust passages 38 and 39 are
It is blocked by the intake port 35.

The exhaust port areas of the exhaust ports 41 and 42 are set such that 41 is smaller and 42 is larger. Since the exhaust passages 39 and 40 have different passage lengths, the exhaust passage area is set to be small on the side of the exhaust passage 39 having a short passage and a small pressure loss, so that exhaust gas is difficult to flow. The exhaust port area on the side of the exhaust passage 40, which is long and has many bent portions and has a large pressure loss, is set large to facilitate the flow. As a result, the sound generated from the fan motor 12 coming out of the exhaust flow is increased on the long 40 side of the exhaust passage, and the sound is attenuated at the bent portion of the passage to reduce the noise of the entire cleaner. It was done.

Reference numeral 43 is an extension hose, one of which is provided with a connecting pipe 44, and the other of which is a skimmer nozzle 4
An extension pipe 46 that accommodates 5 in a stretchable manner is provided.
The extension pipe hose 43 includes a connection pipe 44 and an extension pipe 46.
Formed in. With the claws 47 and 48, the main body 11 of the vacuum cleaner,
It is removable. Also, this extension hose 43
As shown in FIG. 7, by connecting the connection pipe 35 of the connection hose 34 and the connection pipe 44 of the extension hose 43, it is difficult to clean with the floor nozzle 33, such as a gap between furnitures, a shelf, a ceiling, etc. You can clean the place.

Reference numeral 49 denotes a pedal provided on the floor nozzle 33, and the claw 50 formed on the cleaner main body 11 and the claw 51 formed on the pedal 49 are in a locked state. Pedal 4
When 9 is stepped on with the foot to release the lock, the cleaner main body 11
The floor nozzle 33 can be tilted rearward about the rotation shaft 52 provided in the floor nozzle 33, and a normal cleaning state can be obtained. In addition, the vacuum cleaner subject 1
As shown in FIG. 8, the handle 1 can be laid down until the handle body 20 hits the floor surface, so that the handle body 20 can be easily cleaned even in a low clearance such as a bed.

Denoted at 53 and 54 are handles for carrying the cleaner body 11 from the center of the cleaner body 11, respectively.
It is arranged by shifting the size of.

Reference numeral 55 denotes a cushioning material made of foamed urethane or the like, which is provided at a joint portion between the cleaner main body 11 and the floor nozzle 33, and is fixed to a lower surface portion 56 of the cleaner main body 11 and includes a floor nozzle. It is in contact with the upper surface portion 57 of 33.

The connection hose 34 and the extension hose 43 described above have the following considerations. Connection hose 34
The L-shaped pipe 37 of the above is made to project in the width direction of the cleaner main body 11 more than the connection pipe 44 provided in the extension hose 43, and by this, the maximum of the floor nozzle 33 on the L-shaped pipe 37 side. The extension hose 43 is arranged substantially inside the straight line C connecting to the outer shape of the L-shaped pipe 37. On the opposite side, the outer diameter of the extension pipe 46 where the extension hose 43 is held and the extension pipe 46
The extension hose 43 is arranged inside the straight line D connecting the maximum width of the floor nozzle 33 on the side. Reference numeral 58 is a roller for traveling.

[0022]

As described above, according to the structure of the present invention, the exhaust passage from the fan motor is provided on both side surfaces and the upper surface of the dust collecting chamber to form a long passage, so that the sound is attenuated before the exhaust port. Therefore, the noise level becomes low.

Further, even if there is a pressure loss in the two exhaust passages or a difference in passage length by shutting off the two connected exhaust passages in the middle and providing an exhaust port in each of them,
The exhaust is made to flow through each passage,
More sound attenuation effect comes out.

Furthermore, the exhaust passage is long and there are many bends in the passage, and the area of the exhaust port with the higher passage pressure loss is set larger than the area of the other exhaust port with the lower passage pressure loss. Moreover, the exhaust is balanced in two passages. Furthermore, the sound can be reliably reduced, quiet operation noise can be cleaned, and a convenient vertical cleaner can be provided. It is a thing.

[Brief description of drawings]

FIG. 1 is a central sectional view seen from the front in an embodiment of the present invention.

[Fig. 2] Central sectional view seen from the same side

[Figure 3] View from the same rear

FIG. 4 is a partial sectional view of the cord reel section.

FIG. 5 is an enlarged sectional view of a buckle portion of the handle.

FIG. 6 is a perspective view seen from the diagonally rear side.

FIG. 7 is a perspective view of the attachment cleaning.

FIG. 8 is a side view when the main body of the vacuum cleaner is tilted rearward.

FIG. 9 is a central cross-sectional view of a conventional vertical cleaner as seen from the side.

FIG. 10 is a central sectional view seen from the front.

[Explanation of symbols]

11 Vacuum cleaner 12 Juan Motor 33 floor nozzle 39,40 Exhaust passage 41,42 exhaust port

Claims (3)

[Claims] 1. A cleaner main body having a fan motor built in below the dust collecting chamber, and a floor nozzle provided on the suction side of the cleaner main body, and a fan motor is provided on both sides and the upper surface of the dust collecting chamber. A vertical electric vacuum cleaner characterized in that two exhaust passages for passing exhaust air are provided, and an exhaust port is provided on one side of the side surface of the cleaner main body so that exhaust gas flowing from the two passages flows out. 2. A side wall of the dust collection chamber and either side surface of the two exhaust passages disposed on the upper surface are blocked, and a blocking point is sandwiched between the side surfaces of the cleaner main body on the blocked side. Thus, two exhaust ports are provided, and one place allows the exhaust gas flowing from the exhaust passage on one side surface of the dust collecting chamber to flow out, and the other place passes through the other side surface of the dust collecting chamber and the upper surface portion. The vertical vacuum cleaner according to claim 1, wherein exhaust gas flowing from an exhaust passage having many bent portions is discharged. 3. An exhaust area of a longer exhaust passage having a large number of bent portions flowing through both side surfaces and an upper surface portion of the dust collecting chamber is defined as an exhaust area of a shorter exhaust passage only on a side surface of the dust collecting chamber. 3. The vertical vacuum cleaner according to claim 2, wherein the exhaust area is set to be larger than the exhaust area.