JPS6134810B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dust collector for a vacuum cleaner, and its purpose is to prevent fine dust that has fallen from a main filter from flying up, thereby preventing deterioration of performance and facilitating the collection of fine dust. The goal is to be able to discharge it.

A conventional vacuum cleaner has a structure in which the main body has a detachable dust collection box, the filter device is fixed inside the dust collection box, and the dust inside the dust collection box is thrown away by opening the dust collection box lid. If the pre-filter is installed horizontally below the main filter, the fine dust that is removed by the main filter and falls is stored in a fine dust box installed in a part of the pre-filter. This prevents it from flying up.
However, in reality, some of it flies up due to airflow and adheres to the main filter, causing a decline in performance. Another problem is that the fine dust that collects in the fine dust box is scattered below the main filter, making it difficult for it to come out to the dust outlet when emptying the garbage.

Therefore, the present invention provides a dust collector that solves these problems.

An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a main body of a vacuum cleaner, which has an electric blower 2 and a cord winding device 3 built therein. Reference numeral 4 denotes a dust collection box detachably provided in the main body 1, which has an opening 5 on the main body 1 side and an intake port 6 on the opposite side. Reference numeral 7 denotes a filter support frame, one end of which is inserted and fixed into a support rib 8 protruding from the inner peripheral surface of the dust collection box 4. A filter bearing 9 is protruded from the center of the lower surface of this support frame, and a ventilation hole 10 is formed on the outside of the bearing 9. Further, a packing frame 11 is integrally protruded from the end of the support frame 7 on the opening 5 side, and a dust collection box packing 12 whose tip abuts against the main body 1 is fitted into the outer periphery of the packing frame 11. It is. Reference numeral 13 denotes a small bevel gear which is fitted into a hole penetrating approximately the center of the packing frame and is rotatably supported.A clutch 14b that meshes with a clutch 14a on the main body 1 side is integrally fixed to this gear 13. has been done. 15 is a communication hole formed in the packing frame 11. Reference numeral 27 denotes a prefilter disposed approximately in the center of the dust collection box 4, which has a net portion 28 for collecting coarse dust, and has a prefilter shaft 29 protruding from the center of the upper surface. 31 is a partition plate arranged along the inner peripheral surface of the dust collection box 4,
The pre-filter 2 is inserted into the hole in the center of this partition plate 31.
7 is in full swing. Numeral 34 is a gasket that is fixed to the outer periphery of the prefilter 27 and engages with the inner circumferential surface of the partition plate 31. Numeral 32 is a fitting rib that protrudes from the inner circumferential surface of the dust collection box 4. I support it. 16 is a chrysanthemum-shaped main filter that collects fine dust, and the main filter shaft 17 of this filter 16 is connected to the pre-filter shaft 2.
It is fixed concentrically to the filter bearing 9 and passes through the filter bearing 9 so as to be rotatable. 18 is a large bevel gear screwed to the upper end of the main filter shaft 17 on the filter support frame 7,
It meshes with the small bevel gear 13. Reference numeral 19 denotes a filter packing for preventing air leakage, which is fixed to the upper surface of the main filter 16 and whose tip is in contact with the lower surface of the filter support frame; and 20 is a filter spring, which is a dust remover fixed to the outer peripheral surface of the filter bearing 9. Then, dust is removed from the main filter 16 by applying an impact to the chrysanthemum-shaped mountain portion 21 of the filter 16.

Reference numeral 22 is a substantially trapezoidal fine dust receptacle disposed between the main filter 16 and the pre-filter 27, and is fixed to the lower end of the guide plate 7a hanging from the outer periphery of the lower surface of the filter support frame 7. 23 is a prefilter shaft 29 formed in the center of the fine dust receiver 22 (see FIGS. 5 and 6).
The through hole 22a is an air flow opening formed on the outer periphery of the dust receptacle 22, and 24 is the opening 5 of the dust receptacle 22.
This is a fine dust reservoir formed at a closer location, and is located below the receiving surface 22b of the fine dust receiver 22.
25 is a fine dust outlet formed on the dust collecting box opening 5 side of the fine dust reservoir 24; 26 is a dust collecting blade protruding from the lower surface of the main filter 16; the lower end is connected to the fine dust receiver 22;
The contact surface 22b is in contact with or is opposed to the receiving surface 22b with a slight gap therebetween. A dust removal plate 36 is rotatably supported by a boss 37 protruding from the lower surface of the partition plate 31, and its tip is in contact with or faces the lower surface of the net portion 28 of the prefilter 27 with a slight gap.
The proximal end has a recess 28 formed in the lower part of the fitting rib 32.
It is fitted into the inside so that it can rotate freely within a certain range. Reference numeral 39 is a dust collection box lid that is removably fitted into a dust outlet 41 formed under the gasket frame 11 of the opening 5 of the dust collection box 4, and a gasket 40 is fixed to the outer periphery. 42 is a lid handle formed on the dust collection box lid 39, 43 is a dust collection box handle, 44 is a main body handle, and 45 is a buckle device for connecting the dust collection box 4 and main body 1.

The operation of the above configuration will be explained. First, when the cord winding device 3 rotates, the clutch 14a rotates, and the clutch 14b, the small bevel gear 13, and the large bevel gear 18 rotate.
The main filter 16 and the pre-filter 27 are rotated together through the main filter 16 and the pre-filter 27. Of the dust sucked in through the air intake port 6, coarse dust is collected by the net portion 28 of the pre-filter 27, and fine dust is collected by the filter portion of the main filter 16. When the main filter 16 rotates as described above, the peak 21 of the main filter 16 hits the spring 20 fixed to the filter bearing 9, and the filter 1
Fine dust adhering to 6 is shaken off. The fine dust that has been shaken off falls onto the fine dust receiver 22, and since this receiver 22 is approximately trapezoidal, the receiver 22
are gathered at the center of Furthermore, main filter 1
Since the dust collecting blade 26 is provided at the lower part of the dust collecting blade 26, the dust collecting blade 26 also rotates as the main filter 16 rotates, and the receiving surface 22 of the fine dust receptacle 22 is rotated.
b The fine dust collected in the center is pushed out to the fine dust reservoir 24 as shown in FIG. Consequently, fine dust is automatically collected in this fine dust reservoir 24.

Among the coarse dust collected by the prefilter 27 by dust absorption, some of it falls due to its own weight, and some of it gets entangled with the net part 28.
The coarse dust entangled in the net portion 28 is collected and scraped off by the dust removal plate 36 as the pre-filter 27 rotates.

When discarding the dust collected in the dust collection box 4, the dust collection box 4 is separated from the main body 1, and the dust collection box lid 39 is removed from the dust collection box 4. Then the dust outlet 41
is opened, so in this state, the dust collection box 4
Tilt the dust outlet 41 downward, and the dust collection box 4 will open.
Coarse dust collected at the bottom of the container 24 and fine dust collected in the fine dust reservoir 24 fall. Even if coarse dust is caught between the dust removal plate 36 and the pre-filter 27, the dust removal plate 36 will not swing because the dust removal plate 36 is rotatably supported by the boss 37 of the partition plate 31. The coarse dust falls between the dust removal plate 36 and the prefilter 27.

As described above, according to the vacuum cleaner dust collector of the present invention, a main filter is provided at the top of the dust collection box, a fine dust receiver is provided below the main filter, and a pre-filter is further provided below the receiver. Since the main filter is configured to rotate, when the main filter is used to remove dust, most of the fine dust that falls will be collected in the dust receptacle. A dust collecting blade is provided at the bottom of the main filter, and a fine dust reservoir is formed in the fine dust receiver at a position below the receiving surface and extending from the receiving surface toward the dust collecting opening. The fine dust collected in the fine dust receptacle is swept up by the dust collection blade and falls into the fine dust receptacle.
Therefore, even if the vacuum cleaner is started, there is no fear that the fine dust will rise again and be absorbed by the main filter. Furthermore, when disposing of dust, coarse and fine dust can be disposed of at the same time by opening the dust collection box lid, and since the fine dust is collected in the fine dust reservoir, the fine dust is discharged outside at once. It is no longer a problem that the dust cannot be easily discharged, and the handling of the dust disposal becomes easier.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a partially cutaway side view, Fig. 2 is a perspective view of the dust collection box seen from the - line in Fig. 1, and Fig. 3 shows the dust disposal state. A perspective view of the dust collection box, Fig. 4 is a partially cutaway side view of the dust collection box in the same state, Fig. 5 is a perspective view of the fine dust receptacle, and Fig. 6 is a sectional view taken along the - line in Fig. 5. It is. 1... Main body of the vacuum cleaner, 3... Cord winding device, 4... Dust collection box, 13, 18... Gear, 14
a, 14b...Clutch, 16...Main filter, 17...Main filter shaft, 22...Fine dust receiver, 22b...Receiving surface, 24...Fine dust reservoir, 25
...Fine dust outlet, 27...Prefilter, 28...
... Net section, 29 ... Prefilter shaft, 31 ... Partition plate, 36 ... Dust removal plate, 39 ... Dust collection box lid, 41
...Dust outlet.

Claims (1)

[Claims] 1 a main body, a dust collection box that is detachable from the main body, a pre-filter that is rotatably arranged horizontally in the dust collection box, and a pre-filter that is rotatably arranged above the pre-filter in the dust collection box. a main filter arranged horizontally and connected to the pre-filter; a fine dust receptacle disposed between the main filter and the pre-filter; The dust collecting blade that contacts or approaches the receiving surface of the receiver, and the fine dust receiver mentioned above,
A fine dust reservoir is formed at a position below the receiving surface and extends toward the rear end opening of the dust collection box to collect the fine dust collected by the dust collection blade, and a dust collection box for the fine dust collection. A collection of vacuum cleaners characterized in that a lid is provided for simultaneously closing a fine dust disposal port on the rear end opening side and a coarse dust disposal port on the rear end opening side of the dust collection box in the coarse dust chamber below the prefilter. dust equipment.