JPS6363218B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dust collector for collecting dust such as fallen leaves on the ground surface.

Conventionally, this type of dust collector has been configured to suck dust such as fallen leaves on the ground surface by using air generated by an air sucker, and separate and collect the dust using a filter. Therefore, the air filtered by the filter is sucked into the fan, so fine dust passes through the filter and is sucked into the fan, accelerating wear on mechanical parts, and only large dust such as fallen leaves are removed. If the mesh of the filter is made coarse in order to collect dust, a large amount of dust will be sucked into the fan and will hinder the operation of the fan.Also, if you use a bag-shaped filter with a simple structure, you will need a case to cover the filter. However, there were drawbacks such as the fact that the structure was complicated. In addition, since the dust on the ground is sucked by the suction wind, the suction force is weak, making it impossible to remove dust and the like adhering to the ground. In order to scrape off and scrape off the dust, etc. that has adhered to the ground surface, some devices have a flat plate-shaped scraper at the tip of the air suction pipe, but the dust scraped onto the scraper is removed by the suction wind. Since the dust is sucked inward, the force for transporting the dust inward is weak, and there is a risk that the dust scraped by the scraping body may stay there.

The present invention provides a scraping body that moves forward with its leading edge in contact with the ground surface to scrape up dust on the ground and guide it inward, and the pressurized air from the blower is directly applied to the scraped dust. By providing a spout that blows the dust inward and forcefully feeding it inward along the top surface of the scraping body, and by providing a dust container to store the forced dust, the dust is sucked into the air suction unit and operated. It has a simple structure, does not cause any obstruction, and uses a scraper to scrape up the dust on the ground, and blows the blasted air directly onto the dust to forcefully feed it into the dust container, allowing it to be separated. The purpose is to provide a dust collector that is easy to collect. Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

In FIGS. 1 to 3, reference numeral 1 denotes a portable blower, which is constructed as follows. That is, 3 is an engine (not shown), a blower fan (not shown)
5 is a handle provided on the upper part of the main body case 3, and 7 is an air pipe for blowing low-pressure air generated by a blower fan. Reference numeral 9 denotes a dust collector that is detachably fitted to the tip of the blower pipe 7, and is constructed as follows. That is, 1
1 is a main body which horizontally partitions the interior into an upper chamber 13 and a lower chamber 15. Reference numeral 17 denotes a communication pipe that communicates the blower pipe 7 with the lower chamber 15, and its upper end portion is removably fitted to the slightly inclined conical tip of the blower pipe 7. Reference numeral 19 designates an air exhaust port opening at the rear of the upper chamber 13, into which an opening 23 of the dust bag 21 is removably fitted and fixed by a fixing fitting 25. Reference numeral 27 denotes a spout opening opening rearward into the upper chamber 13 from the front end of the lower chamber 15. That is,
From the blower pipe 7 to the communication pipe 17, the lower chamber 15, and the spout 2
7. A pressure air passage is formed from the exhaust port 19 to the bag-shaped dust container 21 via the upper chamber 13. 29 is an opening 3 that opens to the front of the upper chamber 13
A dust collection path 1 to 1 joins the above-mentioned ventilation path in the upper chamber 13, and 33 is a plate-shaped scraper whose front edge is inclined at the lower part of the opening 31 and touches the ground surface.

In the above configuration, when performing dust collection work, the operator supports the handle 5 with one hand and the air pipe 7 with the other hand, and touches the front edge of the scraper 33 on the lower surface of the main body 11. When the dust collector 9 is pushed forward in contact with the ground surface, dust such as fallen leaves on the ground surface is removed by the scraping body 33.
from the dust collection path 29 to the upper chamber 13.
You will be guided inside. This dust is directly blown and pressure-fed by the pressurized air that blows out from the blow-off port 27 via the blower pipe 7, the communication pipe 17, and the lower chamber 15.
Air enters the dust container 21 from the air outlet 19, is discharged to the outside air through the cloth, and the dust is separated and collected in the dust container 21.

Note that FIGS. 4 to 7 show various embodiments other than those described above, and in FIG. 4, the spout 27 is connected to the dust collection path 29.
The second embodiment, shown in Fig. 5, is provided on the upper part of
7 is a third embodiment in which the cross-sectional area of 7 is approximately the same as the cross-sectional area of the air passage, FIG. 6 is a fourth embodiment in which a part of the pressure air is branched and blown out, and FIG. 7 is a pressure air 1
This is a fifth embodiment in which the scraping body is provided horizontally and also serves as the bottom plate of the case 11.

In addition, in Figures 4 to 7, Figures 1 to 3
The same reference numerals as those shown in the figures represent the same components.

As described above, since the present invention has the configuration as described in the claims, it has the following effects. That is, (1) since it uses pressurized air, it can be attached to a portable blower, and the work of blowing fallen leaves etc. and the work of collecting dust can be performed interchangeably.
(2) Since pressurized air is used, the diameter of the blower pipe is small, making it more compact. (3) There is no need to make the filter mesh thinner, reducing the engine load.
Never heats up. (4) Dust will not be sucked into the blower and will not interfere with operation. (Five)
Dust can be easily separated and collected, and since pressure air is used, an inexpensive dust collection bag can be used as the dust collection container, and there is no need for a case to house the dust collection bag. (6) The dust scraped onto the scraping body by the scraping body is directly blown with pressure air and forced inward, so the scraped dust can be powerfully conveyed inward, and the scraping body No dust accumulates on top.

[Brief explanation of drawings]

FIG. 1 is a side explanatory view of a portable blower equipped with a device according to the present invention, FIGS. 2 and 3 are side sectional views and plan views of one embodiment of the present invention, and FIG.
FIG. 5 is a side sectional view of the third embodiment, FIG. 6 is a side sectional view of the fourth embodiment, and FIG.
The figure is a side sectional view of the fifth embodiment. (Explanation of symbols representing main parts of drawings), 1
... Air blower, 21 ... Dust collection container, 27 ... Spout port, 33 ... Scraping body.

Claims (1)

[Claims] 1 A scraping body 33 is provided to scrape up dust on the ground and guide it inward by moving forward with its leading edge in contact with the ground surface, and the pressurized air of the blower 1 is directly applied to the scraped dust. A dust collecting device characterized by being provided with a spout 27 for spraying and forcefully feeding the dust inwardly along the upper surface of the scraper 33, and a dust container 21 for storing the forcefully fed dust.