JP3298179B2 - Vertical vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical vacuum cleaner.

[0002]

2. Description of the Related Art When a vacuum cleaner has been used for a long time, dust gradually accumulates in a dust collection bag in a dust collection chamber, thereby reducing the amount of air drawn by a motor. Since the cooling of the motor is performed at the suction air flow rate, when the suction air flow rate is reduced, the motor is overheated, and finally, the motor burns, and the material forming the motor chamber is thermally deformed, resulting in a dangerous state. . To prevent such overheating,
2. Description of the Related Art Conventionally, an air protector that cools a motor by taking in outside air when the amount of air suctioned by the motor is reduced has been used.

FIG. 9 shows a conventional mounting position of the air protector. A dust collecting chamber 102 containing a dust collecting bag (not shown) is provided above the main body 101, and a rotatable nozzle portion 105 is provided below the main body 101. A retractable hose 10 is provided on the rear wall of the dust collection chamber 102.
3 is attached and the air protector 10
4 are provided. As shown in FIG. 4 of Japanese Utility Model Laid-Open Publication No. 63-83159, there is one provided above the dust collection chamber lid.
Further, as a conventional example provided in the dust collection chamber lid, there is a vertical vacuum cleaner, which is shown in Japanese Utility Model Laid-Open No. 62-67561.

[0004]

SUMMARY OF THE INVENTION Air Protector 1
When the air protector 104 is operated when the main body 101 is laid down as shown in FIG. 10 and the air protector 104 is operated when the main body 101 is used as shown in FIG. Is close to the floor, so it sucks dust on the floor, and the dust is sucked from the air intake (not shown) of the air protector 104 and clogs the internal functional parts of the air protector 104 or the motor itself. Dust was sucked in directly into the air protector and the motor, causing malfunctions.

As shown in FIG. 4 of Japanese Utility Model Application Laid-Open No. 63-83159, in the case of a vacuum cleaner provided above the dust collection chamber lid,
Similarly, if the air protector is activated by using the main body lying down, dust falling from the upper side will be sucked into the air protector, or a part of the user's clothes will be removed while not knowing The air protector was not properly operated, causing the motor to burn.

[0006] The effective volume decreases of the amount corresponding to the dust collecting chamber of its Usuruto air protector, there is a problem that the dust bag is not effectively utilized. In addition, a dust bag made of filter paper, etc.
In order to prevent breakage by the air protector protruding into the dust collection chamber, a plurality of ribs with an appropriate height must be provided integrally with the dust collection chamber lid around the air protector, which makes the mold complicated. And the ribs caused sink marks on the outer surface of the dust collection chamber lid, making the appearance very unsightly.

[0007] The present invention is intended to solve the above problems, and provides a high air protector reliability is not deteriorated functions regardless of the use form of the cleaner, purpose to enhance the safety of the vacuum cleaner And

[0008]

Technical means of the present invention for achieving the object above Symbol of SUMMARY OF THE INVENTION comprises a motor chamber which is covered with the motor chamber cover downward, covered with the dust collecting chamber lid upwardly converging A main body including a dust chamber, a nozzle portion rotatably mounted below the main body, a hose having one end connected to the dust collection chamber and the other end connected to the nozzle portion, An air protector storage portion having a communication hole located at the rear surface of the chamber and having a communication hole communicating with the outside, and an air protector sandwiched between the air protector storage portion and one end of a hose chipper and having an air inlet, the other end of the hose chipper being provided. A hose holding portion having a substantially C-shaped cross section and an inner diameter substantially equal to the outer diameter of the hose.

[0009]

[Action] In the hand stage of the present invention, that the other end of Hosukake provided a hose holding portion of a substantially C-shaped holding a hose, is provided on the air protector provided in the dust collecting chamber rear one end Thereby, when the cleaner body is laid down, the hose holding portion is in contact with the floor surface, and the air intake of the air protector has a certain gap from the floor surface. The protector does not suck the dust on the floor.

[0010]

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

In FIGS. 1 and 2 , a dust collecting chamber 3 containing a dust bag 2 is provided above the main body 1 and a motor chamber 5 containing a motor 4 is provided below the main body 1 with a partition 6. Is provided. A suction part 7 communicating with the motor is provided in the partition wall 6. Reference numeral 8 denotes a motor chamber cover that covers the motor chamber 5, 9 denotes a dust collection chamber cover that covers the dust collection chamber 3, and 10 denotes a nozzle unit that is rotatably mounted below the main body 1. One end of the telescopic hose 11 is attached to the rear wall 3 a of the dust collection chamber 3, and the other end thereof is connected to the nozzle unit 10.

2, 3 and 5, reference numeral 12 denotes an air protector storage portion provided below the hose mounting portion 13 on the rear wall 3a and protrudes inward of the dust collecting chamber 3. Further, a communication hole 14 that communicates with the outside is provided on a side wall of the air protector storage section 12.

In FIG . 4, reference numeral 15 denotes an air protector, a case 15a, an air inlet 15b, and an air outlet 1
5c, a valve body 15d, and a spring body 15e that constantly urges the valve body 13d in the air intake direction.

2 and 3, after the air protector 15 is inserted into the air protector accommodating portion 12 so that the air discharge port 15c faces the dust collecting chamber 3, a fixing portion 16b provided at one end of the hose chip 16 is provided. And is fixed to the main body 1 with screws 17 or the like.

In FIG . 6, the fixing portion 16b communicates with the outside and has an air inlet 1 of the air protector 15.
An opening 16a is provided to face 5b.

In FIG . 7, a hose holder 16 having an inner diameter substantially equal to the outer diameter of the hose 11 and engaging and holding the hose 11 with a substantially C-shaped cross section is provided at the other end of the hose chip 16 .
c, and when the fixing portion 16b is fixed to the air protector housing portion 12, the curved portion 16 of the hose holding portion 16c is provided.
d is set outside the main body 1.

In FIG . 5, reference numeral 18 denotes a rear wall 3a of the dust collecting chamber 3.
And protrudes inward of the dust collection chamber 3. The protruding end 12a of the air protector storage section 12 is closer to the body 1 than the protruding end 18a of the accessory storage section 18.
It is located near the rear of.

With the above configuration, in the normal use state shown in FIGS. 1 and 2, dust on the floor surface is sucked together with air from the lower portion of the floor nozzle portion 10 and collected via the hose 11 and the hose mounting portion 13. The dust is guided to the dust collection bag 2 in the dust chamber 3, the dust is captured by the dust collection bag 2, and the clean air is removed from the dust collection bag 2.
Pass through the suction portion 7 of the partition wall 6 and are exhausted to the outside through an exhaust portion (not shown) of the motor chamber 5.

While the dust in the dust bag 2 is small, the sucked air passes through the dust bag 2 without any resistance .
As shown in FIG. 2, the degree of vacuum between the dust bag 2 and the rear wall 3a does not increase so much. However, when dust accumulates in the dust collection bag 2, the dust causes the external air to be accumulated in the dust collection bag 2.
, And as a result, the degree of vacuum between the dust bag 2 and the rear wall 3a increases.

When the degree of vacuum rises, the suction force thereby overcomes the urging force of the spring 15e of the air protector 15 , as shown in FIG. 15b is open. Then, outside air enters through the air inlet 15b, flows through the air outlet 15c, the communication hole 14, and the suction part 7 of the partition 6 into the motor chamber 5, cools the motor 4, and prevents the motor 4 from burning and other abnormalities. .

According to the real施例of the [0021] The present invention, Hosukake 16
The hose 11 is provided at one end of the hose holding portion 16c.
Is provided so as to be located on the outside of the main body 1, so that when the main body 1 is used lying down as shown in FIG.
Does not come into contact with the floor surface, and the rear wall 3a of the dust collection chamber 3 does not approach the floor surface any more. That is, a certain gap is secured between the floor 16 and the opening 16a communicating with the air inlet 15b of the air protector 15.

Further, according to the configuration of the real施例of the present invention, dust collecting bag 2 is the rear wall 3 by the projecting end 18a of the accessory accommodating portion 18
It is prevented from spreading in the direction of a. Therefore, a sufficient air flow path is always secured between the lower part of the accessory storage section 18 and the partition wall 6 regardless of the amount of dust in the dust bag 2. Since the air protector storage section 12 for storing the air protector 15 is in the air flow path, when the dust collection bag 2 is full of dust and the degree of vacuum in the dust collection chamber 3 increases,
The air protector 15 operates reliably, and the outside air enters through the air inlet 15b of the air protector 15, enters the motor chamber 5 through the suction section 7 of the partition 6, and prevents abnormalities such as motor burn.

[0023]

As is apparent from the above description, according to the present invention, even if the air protector is operated while the cleaner body is used while lying down, the air intake between the air protector and the floor surface is not affected. Since a certain gap is secured between the air protectors, dust on the floor surface is not sucked into the air protector, and the reliability of the air protector is improved.

Further, since the hose holding portion is in contact with the floor surface,
The hose itself is not damaged and the life of the hose is extended, and it is not necessary to use a material having an unnecessarily long durability as a material of the hose .

[Brief description of the drawings]

FIG. 1 is an external view of a vertical vacuum cleaner showing one embodiment of the present invention.

FIG. 2 is a partially cutaway front view of the vertical vacuum cleaner.

FIG. 3 is a rear view of the vertical vacuum cleaner.

FIG. 4 is a cross-sectional view of the air protector with the built-in vertical vacuum cleaner.

FIG. 5 is a sectional view taken along line AA of FIG. 2;

FIG. 6 is a plan view of a hose chip provided on a rear surface of the vertical vacuum cleaner.

FIG. 7 is a sectional view taken along line BB of FIG. 6;

FIG. 8 is a diagram showing a state when the vertical vacuum cleaner is used while lying down.

FIG. 9 is an external view of a conventional vertical vacuum cleaner.

FIG. 10 is a view showing a state in which the vertical vacuum cleaner is used while lying down.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 3 Dust collection room 5 Motor room 8 Motor room lid 9 Dust collection room lid 10 Nozzle part 11 Hose 12 Air protector storage part 12a Projecting end of air protector storage part 15 Air protector 16 Hose break 16c Hose holding part 18 Accessories Storage section 18a Projecting end

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hiroaki Inui 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (58) Field surveyed (Int. Cl. ⁷ , DB name) A47L 5/28

Claims (1)

(57) [Claims] 1. A main body composed of a motor chamber covered with a motor chamber cover below, a dust collecting chamber covered with a dust collecting chamber cover above, and a nozzle tiltably mounted below the main body. Part, a hose having one end communicating with the dust collection chamber and the other end communicating with the nozzle part, located on the rear surface of the dust collection chamber, and
An air protector storage section having a communication hole for communicating the dust collection chamber with the outside , an air intake port at one end, and an air exhaust port at the other end;
An air protector with an outlet and an opening on one side
The other part is almost the same as the outer shape of the hose.
Hose for holding the hose with a substantially C-shaped cross section having an inner diameter
A hose holder provided with a hose holding part;
With the hose protruding backward,
Then, replace the air protector with the air protector
A vertical vacuum cleaner that is fixed to the storage section .