JPS6110600Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a dust collector for a vacuum cleaner. The dust collection device of a vacuum cleaner generally consists of a dust collection container, a primary filter, and a secondary filter, and the coarse dust sucked into the air is captured by the primary filter. The fine dust that has passed through the primary filter is captured by the secondary filter. The coarse dust captured by the primary filter is directly stored in a dust collection container, while the fine dust captured by the secondary filter is sieved onto the primary filter by a dust remover. It passes through a primary filter and is stored in a dust collection container.

By the way, in this type of conventional dust collector,
Since the fine dust captured by the secondary filter is sieved onto the primary filter by a dust remover, the fine dust charged by vibration and friction combines with the coarse dust attached to the primary filter, or the fine dust The particles become entangled with each other and become larger, making it difficult for them to pass through the primary filter.
For this purpose, a dust remover or a vibrating device is installed in the primary filter to remove the dust, but the results are not satisfactory. In consideration of this point, the present invention directly collects the fine dust captured by the secondary filter without letting it fall onto the primary filter.
An object of the invention is to provide a dust collector for a vacuum cleaner having a structure that can be housed in a dust container.

Embodiments of the present invention will be described with reference to the drawings. 1st
In the figure, reference numeral 1 denotes a main body of a vacuum cleaner, which includes an electric blower 2 and a cord winding device 3, and has front wheels 4 and rear wheels 5. Reference numeral 6 is attached to the main body 1 with a hinge 7 at the upper part of the main body (hereinafter referred to as "on the main body") of the vacuum cleaner so as to be openable and closable, and is locked to the main body 1 with a buckle 8. A handle 9 is provided on the upper surface of the upper body 6, and a front cover 11 having an intake port 10 is attached to the front. Reference numeral 12 denotes a dust container to which a plastic bag 13 is attached, and is provided to be detachably attached to the main body 1. 1
Reference numeral 4 denotes a substantially cylindrical filter case, which is airtightly attached to a rib 6a formed integrally with the main body upper part 6 via a gasket 15, and together with a front cover 11,
It is fixed to the top 6 of the main body with screws 16.

In FIGS. 1 and 2, 17 is a secondary filter provided in the upper part of the filter case 14, and is arranged in a zigzag shape around a central bearing 17a. Reference numeral 18 denotes a substantially cylindrical primary filter, which is provided in the lower part of the filter case 14. Reference numeral 19 is a roughly disc-shaped dust tray with a concave portion in the center, and a disk-shaped fine dust pan 20 is fixed onto the concave portion with screws 20c to form a compartment 19a. It is rotatably provided on the upper part of 18. 20a is a hollow shaft provided at the center of the upper part of the dust receiver 20 and integrally therewith; a shaft 6 having a claw at the tip and formed integrally with the upper part of the main body 6;
b and the bearing 17a of the secondary filter 17 so as to be rotatable. Reference numeral 21 denotes a gear, which integrally has a shaft 21a in the center thereof having a claw that engages with a claw at the tip of the hollow shaft 20a, and rotates the fine dust receiver 20 in conjunction with the rotation of the cord winding device 3. let 22 is a fine dust valve made of an elastic material such as rubber, provided in the compartment 19a, and its upper and lower surfaces are in pressure contact with the upper fine dust receiver 20 and the lower fine dust receiver 19, and the shaft 6b of the upper main body 6 22, which is fixed with a square hole 22b to
a is the hole that temporarily accommodates fine dust.

The fine dust receiving upper 20 and the fine dust receiving lower 19 are provided with a fine dust inlet 20b and a fine dust outlet 19b, which correspond to the hole 22a of the fine dust valve 22, and are arranged at an angle of 180 degrees.
23 is a blade for collecting fine dust formed integrally with the primary filter 18, which is sifted from the secondary filter 17 and placed on the fine dust receiver consisting of the fine dust receiver 20 and the fine dust receiver 19. The fine dust is collected by the rotation of the dust receiver and introduced into the fine dust intake port 20b. 24 is a dust removal spring attached to gear 21;
The rotation of the gear 21 causes the secondary filter 17 to vibrate, thereby sieving off the attached fine dust onto the fine dust receiver. 19c is a dust removing rib formed integrally with the fine dust receiver 19, and scrapes off coarse dust entangled in the primary filter 18 by rotation of the fine dust receiver.

Next, its effect will be explained. When the electric blower 2 is driven, air containing dust is sucked in through the air intake port 10 as shown by the arrow, and passes through the primary filter 18,
The air passes through the secondary filter 17 and is sucked into the electric blower 2. Coarse dust in the air is captured by the primary filter 18, and fine dust that has passed through the primary filter 18 is captured by the secondary filter 17. Now, when the gear 21 is rotated by pulling out the cord, the fine dust adhering to the secondary filter 17 is removed by the dust removing spring 24 onto the fine dust receiver consisting of the upper fine dust receiver 20 and the lower fine dust receiver 19. be filtered out. Due to its rotation, the fine dust accumulated on the fine dust receiver is scraped up by the blade 23, and as shown in FIG. When the portions 22a match, they are accommodated within the hole portions 22a. As shown in FIG. 6B, when the fine dust outlet 19b of the fine dust receiver 19 aligns with the hole 22a, the fine dust temporarily stored in the hole 22a falls downward. and enter the dust container 12.

The present invention is characterized in that the shape of the hole 22a of the fine dust valve 22 is enlarged downwardly to form a trapezoidal cross section. The fine dust valve of a conventional dust collector, which has a hole through which fine dust passes, has no slope and the upper and lower areas are equal, so it is made of coagulating fine particles such as cement or talcum powder. It becomes difficult for fine dust to pass through, and a film is formed around the fine dust intake port 20b, clogging the hole 22a. However, in the present invention, the lower part of the hole 22a is enlarged, so that the caking fine particles The passage of fine dust is facilitated. In addition, the hole 22 is entangled with the discharge port 19b.
It is also easy to remove the fibrous cotton waste that has entered the a.

Further, the fine dust valve 22 of the present invention is made of an elastic material such as dust, and its upper and lower surfaces are in pressure contact with the fine dust receiving upper 20 and the fine dust receiving lower 19, and the fine dust intake port 20b and the fine dust exhaust Since the outlet 19b and the outlet 19b are located at 180 degrees from each other, no matter where the rotating fine dust receiver stops, the fine dust outlet 19b and the fine dust intake 20
b is closed by the fine dust valve 22, and 1
Coarse dust on the secondary filter side does not pass through the hole 22a of the fine dust valve 22 and enter the secondary filter side.
Also, most of the coarse dust captured by the primary filter 18 falls into the dust container 12, and some of it gets entangled in the net of the primary filter 18, but the fine dust receiving container 12
By rotating 9, the dust removal rib 19 provided on the lower surface of the
c and falls into the dust container 12. The fine dust and coarse dust stored in the dust container 12 in this way are contained in the plastic bag 13, so as shown in FIG.
2 and then tie the opening of the plastic bag 13 with a string and throw it away, allowing sanitary garbage disposal.
Since there is almost no coarse dust attached to the primary filter 18, even if the dust container 12 is taken out from the main body 1, the floor surface and hands will not be contaminated with coarse dust.

As described above, the dust collector of the present invention has a primary filter 1 for capturing coarse dust provided on the dust collection container 12.
8, a secondary filter 17 for capturing fine dust provided above the primary filter 18, and a dust removing means (dust removing spring 2) for removing fine dust attached to the secondary filter 17.
4) and the secondary filter 17 and the primary filter 1
8, and a blade 23 for scraping up fine dust from the fine dust receptacle, and the fine dust receptacle has a fine dust receptacle 20 having a fine dust intake port 20b and a rotating fine dust receptacle provided between the fine dust receptacle 20 and the fine dust receptacle 20 having a fine dust intake port 20b. It is constituted by a fine dust receiving port 19 having an intake port 20b and a fine dust outlet 19b located at a position of 180 degrees, and has a non-rotating fine dust valve 22 therein. It has a hole 22a that communicates with the dust intake port 20b and the fine dust discharge port 19b,
Since the hole 22a is formed in a trapezoidal cross-section with its lower part widened, the secondary filter 1
The fine dust captured by 7 is sieved onto a fine dust receiver by a dust removal spring 24, collected by a blade 23, smoothly passes through a fine dust valve 22, and is stored in a dust collecting container 12. The dust can be collected in the plastic bag 13 together with the coarse dust captured by the primary filter, and garbage can be disposed of easily and hygienically. Therefore, the fine dust captured by the secondary filter 17 can be stored in the dust collection container 12 without falling onto the primary filter 18, which has the effect of achieving the purpose of the invention.

[Brief explanation of the drawing]

Figure 1: A cross-sectional side view of the main parts of the embodiment of the present invention, Figure 2: An exploded perspective view of the secondary filter and fine dust receptacle of the present invention, Figure 3: The fine dust receptacle and fine dust valve of the present invention. In the vertical cross-sectional view, A is when the hole of the fine dust valve is aligned with the fine dust intake port, B is when the hole is aligned with the fine dust outlet, and Figure 4: The dust collection container of the present invention is removed from the main body. FIG. 5 is a perspective view of the dust receptacle of the present invention, showing the state when taken out. 1... Main body of the vacuum cleaner, 2... Electric blower,
3... Cord winding device, 6... On main body, 6b...
6 ribs on main body, 12... dust collection container, 14... filter case, 17... secondary filter, 18...
Primary filter, 19... Fine dust receiving lower, 19a... Compartment, 19b... Fine dust outlet, 20... Fine dust receiving,
20a...Hollow shaft, 20b...Fine dust intake port, 21
... Gear, 22 ... Fine dust valve, 22a ... Hole, 2
3...Blade, 24...Dust removal spring.

Claims (1)

[Scope of utility model registration request] A primary filter for capturing coarse dust installed above the dust collection container, a secondary filter for capturing fine dust installed above the primary filter, and a dust remover for removing fine dust attached to the secondary filter. a rotating fine dust receptacle provided between the secondary filter and the primary filter, and a blade for scraping up fine dust in the fine dust receptacle, the fine dust receptacle having a fine dust intake port. The fine dust valve has a non-rotating fine dust valve inside, which is composed of a fine dust upper part and a fine dust receiving part having a fine dust outlet located at an angle of 180 degrees to the fine dust intake port. A dust device for a vacuum cleaner, comprising a hole that communicates with the fine dust inlet and the fine dust outlet, and the hole has a trapezoidal cross section that is widened at the bottom.