JPS6349492B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a dust collector for a vacuum cleaner.

Structure of conventional example and its problems Figures 1 and 2 show a conventional dust collector for a vacuum cleaner, in which 1 is a filter medium 2 that is bent into a corrugated cross-section to form a number of parallel pleats, and a frame A secondary filter for capturing fine dust is formed integrally with the body 3, and 4 is a dust removal body whose one end is rotatably attached to the frame 3 so as to perform a fan-shaped reciprocating motion, and the other end is attached to the second filter. A dust remover 5 is provided which applies vibration to the wave crest of the next filter 1 and removes dust therefrom. 6 is a primary filter having a net for capturing coarse dust, and 7 is a packing that allows the secondary filter 1 to be attached to and removed from the dust collecting container 8 by its elastic force and prevents air leakage.

In the above-mentioned conventional dust collector, the folds of the secondary filter 1 are parallel and the dust remover 4 moves in a fan shape, so the manner in which the dust remover 5 collides with the folds of the secondary filter 1 is In the center, it is perpendicular to the folds, and as it moves laterally, the angle changes. Here, the impact force applied to the folds is highest when the dust remover 5 collides with the folds at a right angle, and as the collision angle deviates, the impact force becomes weaker.
That is, the dust removal effect is high in the central part of the secondary filter 1, but the effect is low in the side parts, and the dust that has accumulated between the folds cannot be completely removed and remains, resulting in a severe deterioration of suction performance. was.

Purpose of the Invention The present invention solves the above-mentioned conventional drawbacks by applying sufficient dust removal vibration throughout the secondary filter to reliably remove dust between the folds and maintain suction performance over a long period of time. be.

Structure of the Invention In the present invention, the gap between the folds of the secondary filter is made wider at the bottom than at the top, and the folds are configured to spread approximately radially from the top to the bottom, so that the dust remover can be moved against the folds. The idea was to apply a uniform impact, thereby reliably removing dust between the folds and maintaining suction performance over a long period of time.

DESCRIPTION OF EMBODIMENTS The embodiments will be described below with reference to the accompanying drawings.

In Figures 3 to 5, 11 is an electric blower 1.
2 (hereinafter referred to as the main body),
Reference numeral 13 denotes a dust collection container detachably connected to the main body 11 with a buckle 14. The dust collecting container 13 has a free front vehicle 15 on the lower surface, a handle recess 16 on the upper front part, and the main body 11 has a handle 17 on the upper part and rear wheels 18 on both sides of the lower part.

The internal structure of the dust collecting container 13 is as follows. That is, a hose connection port 19 is formed on the front surface, and an opening 2 is formed on the rear surface portion connected to the main body 11.
0, and a filter device 21 is removably fitted therein. Reference numeral 22 designates a secondary filter that bends the filter medium 23 into a wave-shaped cross section and is formed integrally with the filter frame 24 to capture fine dust. The filter medium 23 has substantially radial folds such that the pitch is wider at the bottom than at the top. 2
Reference numeral 5 denotes a filter packing installed on the outer periphery of the filter frame 24, which is in close contact with the inner surface of the dust collecting container 13 and the front surface of the main body 11 to prevent air leakage. A primary filter 26 is detachably attached to the front surface of the filter frame 24 via a pair of upper and lower engaging portions 27 and 28, and has a coarse mesh to capture coarse dust.

Reference numeral 29 denotes a filter dust remover disposed on the main body 11 side of the secondary filter 22, which is composed of a knob portion 30, an operating portion 31, and a joint portion 32 that connects these parts, and a bearing 33 provided at one end is formed on the upper part of the filter frame 24. Rotatably attach it to the shaft 34, and tighten the screw 3.
5 prevents it from coming off. A dust remover 36 is integrally provided on the secondary filter 22 side of the operating section 31, and by rotating the operating section 31 side to the left and right around the bearing 33, the dust remover 36 can be attached to the secondary filter 22 side. 22 folds are struck and vibrated to remove fine dust that has accumulated between the folds.

In the above configuration, before discarding the dust captured in the dust collection container 13, the secondary filter 22 is cleaned of dust. The dust remover 36 directly below the operating section 31 is applied to the folds of the secondary filter 22 to vibrate, thereby removing dust.

At this time, since the folds of the secondary filter 22 are arranged in a substantially radial manner so that the pitch is wider from the upper part to the lower part, the operation part 3 of the filter dust removing body 29
1 moves in a fan shape and is positioned laterally, the angle of impact of the dust remover 36 directly below the operating portion 31 on the folds is closer to a right angle than when the folds are configured vertically. As a result, the impact force applied to the folds of the dust remover 36 is increased, and the dust from the secondary filter 22 can be sufficiently removed. In addition, since the folds face downward and have a wide pitch, the removed dust easily falls downward, making it possible to reliably remove the dust between the folds of the secondary filter 22, and Performance can be maintained over a long period of time.

Effects of the Invention As is clear from the embodiments described above, the present invention has a dust removal body that reciprocates in a fan shape, and the fold pitch of the secondary filter, which is the dust removal target, is widened from top to bottom and provided in a substantially radial manner. The angle at which the dust remover collides with the folds of the dust remover provided on the dust remover is close to a right angle for the left and right folds of the secondary filter.
It is possible to obtain the same impact force as the central part, and to obtain a good dust removal effect in all the folds.At the same time, since the folds expand downward, all the removed dust falls downward. Therefore, it does not remain between the folds, and suction performance can be maintained well over a long period of time.

[Brief explanation of the drawing]

Figure 1 is a sectional view of a conventional dust collector, Figure 2 is a rear view of the same dust collector, Figure 3 is a side view of a vacuum cleaner showing an embodiment of the present invention, and Figure 4 is a dust collector. FIG. 5 is a rear view of the dust collector. DESCRIPTION OF SYMBOLS 11... Vacuum cleaner body, 12... Electric blower, 13... Dust collection container, 22... Filter (secondary filter), 24... Filter frame, 29...
...Dust remover, 31...Operation unit, 36...Dust remover.

Claims (1)

[Claims] 1 A vacuum cleaner body with a built-in electric blower, a dust collection container removably attached to the vacuum cleaner body, and a dust collection container installed in the vacuum cleaner body, with a corrugated cross-section and a pitch wider at the bottom than at the top. A filter frame that supports the filter, and a dust removal body that removes dust from the filter. A vacuum cleaner dust collection device with dust removers facing each other.