JP3047483B2 - Electric 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 an electric vacuum cleaner, and more particularly to an electric vacuum cleaner having a lower body provided with a dust suction chamber having an opening in the front, and a dust collection bag disposed in the dust suction chamber from the front opening. About vacuum cleaner.

[0002]

2. Description of the Related Art A conventional vacuum cleaner uses a dust collecting bag 1 as shown in FIG.
After the dust bag 1 is inserted into the bag and the dust bag is sufficiently sucked, the dust bag 1 is taken out from the opening 2 and discarded, and a new dust bag 1 is remounted and used. Mouth frame 4 of bag 1
And the check valve 5 made of natural rubber or the like attached near the hose connection port 11 of the dust suction chamber 3 to each other, and the mouth frame holding plate 6 and the opening 2 formed on the inner lower surface of the dust suction chamber 3 are connected. The mouth frame 4 is formed by a mouth frame retainer 8 formed integrally with the upper lid 7 that covers airtightly.
And the dust collection bag 1 was held in the dust collection chamber 3.

[0003]

However, in the case of such a structure, as shown in FIG. 5, in order to take out the dust collection bag 1 which has sufficiently absorbed the dust, the mouth frame 4 must be moved to the position 4 'indicated by a chain line.
Until then, it is necessary to make an arc movement around the mouth frame holding plate 6 portion. For this reason, there is a problem that the mouth frame 4 hits the lower end of the check valve 5 when the mouth frame 4 is set, making it difficult to set.

In addition, because of the necessity of circular movement, the diameter A of the intake port 9 fitted to the check valve 5 of the mouth frame 4 and the outer diameter B of the check valve 5 must be A > B. Fine dust such as cement leaks from the gap between the check valve 5 and the mouth frame 4 caused by this, and not only deteriorates the performance as a vacuum cleaner, but also causes the failure of the electric blower 10 due to the leaked dust. It was with.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a vacuum cleaner in which a mouth frame of a dust bag can be easily set.

[0006]

In order to achieve the above object, a vacuum cleaner according to the present invention is held on a front wall of a dust collecting chamber.
The check valve protrudes in the direction of the dust suction chamber and is inserted into the intake port of the port frame
And the outer periphery of the insertion tip of the intake port
Equipped with a tapered and thin lip.
The diameter increases as it goes to the entrance .

[0007]

With this configuration, in the vacuum cleaner according to the present invention, the tip of the suction port cylinder protruding in the direction of the dust collection chamber of the check valve is provided at the suction port of the frame.
It can be easily inserted into the hole, and furthermore, the insertion tip of the inlet cylinder
A tapered thin lip on the outer periphery of the portion;
The diameter increases as you go to the hose connection port side.
At the time of attaching the mouth frame, apply excessive force to the mouth frame
It is possible to ensure airtightness without any
You.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vacuum cleaner according to an embodiment of the present invention will be described below with reference to the accompanying drawings. 3 and 4, reference numeral 11 denotes a dust suction chamber 13 having an opening 12 facing upward,
4 is a main case in which a main body chamber 16 containing an electric blower 15 is formed at the rear, and a handle 17 for carrying is formed at the forefront.

Reference numeral 18 denotes a pair of large wheels for movement attached to the main case 11, and 19 denotes a free wheel attached to the bottom surface of the dust suction chamber 13 of the main case 11. The upper opening of the electric blower 15 is covered with an upper lid 20, and the upper lid 20 and the main case 11 are fixed with screws.

Reference numeral 21 denotes a front lid whose lower portion is locked by a boss 22 provided on the front bottom surface of the main case 11. Above the front cover, a bumper 23 made of vinyl chloride and a dust chamber 13 attached to the outer periphery of the main case 11. A check valve 26 made of natural rubber attached to an intake port 25 provided at a substantially central portion of the front wall 24 is sandwiched and fixed to the front wall 24 with screws.

Reference numeral 27 denotes a hose connection port formed in the front cover 21. When the front cover 21 is fixed to the front wall 24, the hose connection port 27 and the check valve 26 are coaxial.

Reference numeral 28 denotes a cover which covers the opening 12 of the dust suction chamber 13, the rear part of which is engaged with the upper lid 20, and the front part which is engaged with the handle 17, which is detachably attached to the main case 11.

Reference numeral 29 denotes a dust-collecting bag serving as a filter for capturing dust. The dust-collecting bag 29 is made of cardboard or the like, and has a mouth frame 31 having an air inlet port 30 integrated with the bag mouth by mounting or the like. I have.

The dust bag 29 is mounted as shown in FIGS. First, the lower end of the mouth frame 31 is positioned by the mouth frame holder 32 disposed on the bottom surface of the dust suction chamber 13, and is then moved in an arc so that the check hole 26 is fitted to the check hole 26 and raised up until it becomes vertical. Next, the lid 28 is attached to the main case 11.
When it is attached to the lid 28, the frame holder 33 formed integrally with the lid 28
Supports the upper end. Therefore, even if the dust bag 29 is pulled during the operation of the electric blower 15, the mouth frame 31 is securely held. Also, a dust bag 29 full of dust.
When taking out, the reverse is done.

As shown in FIGS. 1 and 2, the check valve 26 is formed with a four-part valve 34 at a portion communicating with the hose connection port 27 to prevent dust spillage from the dust collection bag 29. Preventing.

The thin Clip 36 inlet hole 30 mates to the air inlet tube 35 is provided with inclined so that the outer diameter of the hose connecting port 27 side than the outer diameter of the tip becomes large opening frame 31 It is formed. A check valve positioning rib 37 is formed on the front wall 24.

In the above configuration, when the dust bag 29 is mounted, the diameter ФA of the tip of the lip 36 provided at the tip of the intake port tube 35 of the check valve 26 is equal to the diameter ФB of the intake port hole 30 of the port frame 31. It is formed sufficiently smaller, and the maximum diameter ΔC of the lip 36
Is formed sufficiently larger than the diameter ФB of the intake port 30, so that when the port frame 31 is attached to the main body case 11, the lip 36 keeps the intake port 30 airtight, so that dust leakage can be prevented. . Further, since ФA is sufficiently smaller than ФB, when the mouth frame 31 is attached, it can be smoothly attached without obstruction. In addition, when the dust collecting bag 29 is full and is to be removed, the dust collecting bag 29 can be easily removed only by slightly tilting the mouth frame 31.

In the second method, as shown in FIG.
The flange 38 is attached to the lip 36 provided on the intake port cylinder 35 of No. 6.
And the flange 38 is connected to the inlet hole 30 of the
It is configured to be in contact with the peripheral edge on the side of the base connection side, and is in close contact with the mouth frame 31, so that fine dust such as cement is less likely to leak.

[0019]

As is apparent from the above description of the embodiment, according to the vacuum cleaner of the present invention, the outer periphery of the insertion end portion of the suction port cylinder of the check valve engaged with the frame of the dust collection bag. , Tapered and thin
Those that can be loaded smoothly without check valve can be used in the air inlet hole when the opening frame set by providing a Clip meat. In addition, when the dust collecting bag is full, when the bag is removed, simply tilting the bag at a small angle removes the intake port from the check valve, and the bag can be easily removed.

[Brief description of the drawings]

FIG. 1 is an enlarged longitudinal sectional view showing a main part near a check valve of a vacuum cleaner showing an embodiment of the present invention.

FIG. 2 is an enlarged longitudinal sectional view showing a main part near a check valve of another embodiment of the vacuum cleaner of the present invention.

FIG. 3 is an enlarged longitudinal sectional view showing a main part of the vacuum cleaner.

FIG. 4 is a longitudinal sectional view showing the overall configuration of the vacuum cleaner.

FIG. 5 is a longitudinal sectional view showing the entire configuration of a vacuum cleaner showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Main case 13 Dust suction chamber 15 Electric blower 24 Front wall 26 Check valve 27 Hose connection port 29 Dust collection bag 30 Suction port hole 31 Port frame 35 Suction port cylinder 36 Lip 38 Flange

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yukiyuki Ueno 1006 Kazuma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (56) References 86153 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47L 9/10 A47L 9/14

Claims (2)

(57) [Claims] A dust-collecting bag provided with a mouth frame having an intake port, a dust-absorbing chamber in which the dust-collecting bag is disposed at the front, and a main case having a built-in electric blower at the rear; A check valve held on a front wall of the chamber, wherein the check valve protrudes in the direction of the dust-absorbing chamber, and the intake valve is inserted into the intake port.
The tapered shape on the outer periphery of the mouthpiece and the insertion tip of the suction mouthpiece
With a thin lip, electric vacuum cleaner, which was made to be a large diameter as the go the lip to the hose connection port side. 2. A lip is provided with a flange.
So that it comes into contact with the peripheral edge of the hose connection side of the intake port.
Electric vacuum cleaner of 請 Motomeko 1, wherein you.