JPS6337112Y2 - - Google Patents

Description

[Detailed description of the invention] This invention consists of a dust collection path for guiding dust on the ground toward a dust collection container that can be attached to and detached from the blower, and a dust collection path that joins the dust collection path diagonally to collect the pressure air from the blower. This relates to a dust collector equipped with an air passage for blowing air.

Conventionally, a dust collector for collecting dust on the ground surface has been configured to suck dust such as fallen leaves on the ground surface 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 large to collect dust, a large amount of dust will be sucked into the fan, which will hinder the operation of the fan.
This had the disadvantage that it required a case to cover the filter, which made the structure more complicated.

This invention collects dust from the ground surface using the pressure air of the blower, and by attaching a dust container to the blower in a detachable manner, it prevents dust from being sucked into the blower and interfering with operation. No dust separation,
It is an object of the present invention to provide a dust collector that is easy to collect, does not impede transportation of large dust such as fallen leaves in a dust collection path, and is easy to handle. Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a portable air 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. 41
is a confluence pipe that fits into the tip of the air pipe 7;
The air passage 4 goes from the air inlet 43 to the air outlet 45.
7 obliquely merges into a dust collection path 49 which extends from a dust suction pipe 51, which will be described later, to a dust container 59 via an air exhaust port 45. The dust collection path 49 is provided with a cross-sectional area of approximately the same shape over its entire length, and the ventilation path 47
is provided with an opening on the inner wall surface of the dust collection path 49. Reference numeral 51 denotes a dust suction pipe that fits into the suction port 53 at the lower part of the dust collection path 49, and a conical dust suction body 55 is connected and fixed to the tip thereof, and an opening 57 is opened at the lower part. 59
is a bag-shaped dust container suspended from the blower 1 via the air pipe 7 by a fixing fitting 61, and the opening 63 is removably fitted to the outer periphery of the exhaust port 45 and fixed by the fixing fitting 65. ing. 67 is a guide ring rotatably provided at the rear of the dust suction body 55.

In the above embodiment, when performing dust collection work, the worker holds the guide wheel 67 in contact with the ground surface,
The lower surface of the dust suction body 55 is moved forward while maintaining an appropriate distance from the ground surface. The low-pressure air generated by the blower 1 passes through the air passage 47 from the inlet 43 of the confluence pipe 41 at high speed, enters the dust container 59 from the air outlet 45, passes through the fabric, and is released into the atmosphere. It is something. Air is blown from the ventilation path 47 to the dust collection path 49
When the air flows into the dust collection path 49 at high speed, the air in the dust collection path 49 is drawn in and creates a negative pressure, which causes the air to flow into the opening 57 of the dust suction body 55.
suction air from. This sucked air sucks dust on the ground surface and joins the air flowing from the dust pipe 51 through the dust collection path 49 and the air blowing path 47 into the dust container 59.
It is something that can be separated and contained by entering the interior. In addition,
FIG. 3 shows another embodiment, in which the main body case 3
A dust container 69 is removably fixed to the lower part of the dust container 69, and a filter 71 is provided inside the dust container 69.

The dust container 69 may be removably fixed to the lower part of the blower 1, and a flexible pipe may be used as the dust suction pipe 51. Also, wheels may be provided at the bottom of the dust container to allow it to roll on the ground. may be configured. In addition, an appropriate handle may be provided in order to grasp the blower pipe 7 or the dust suction pipe 51.Also, the lower end of a rigid rod is attached to the dust suction pipe 51, a grip is provided on the upper end of the rod, and the operator can handle the By holding the portable air blower 5 and the gripping portion in both hands, the operator can comfortably hold the portable blower in a position where the front side is tilted downward. Further, the dust container 69 may be formed in the form of a bag that also serves as a filter, and if the side surface of this bag-shaped dust container is shielded with a non-ventilated plastic film or the like, it is possible to prevent the dust from blowing against the operator. Can prevent spraying. Alternatively, an air exhaust port may be provided at the rear of the box-shaped dust container or on the side opposite to the operator to prevent dust from blowing toward the operator. Alternatively, a filter may be provided in the dust container at an angle, and air mixed with dust may be blown onto the bottom surface of the filter to separate the dust. All of these belong to the present invention.

As described above, since the present invention has the configuration as described in the claims, it has the following effects. That is, (1) since the pressurized air of the blower is used, 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 air pipe etc. becomes smaller, making it more compact. (3) There is no need to make the filter mesh finer, reducing the load on the engine and preventing overheating. (4) No dust is inhaled into the blower.
Does not interfere with driving. (5) Since the dust container is fixed to the blower directly or through the blower pipe, it is easy to handle and work. (6) Since the dust collection path is provided with a cross section of almost the same shape over its entire length, and the air blowing path is opened on the inner wall surface of the dust collection path, air jet nozzles, etc. There is no need to protrude into the dust container, there is little resistance to the suction wind, and the powerful suction wind allows even large dust particles such as fallen leaves to be smoothly fed into the dust container without being obstructed. Note that the term "cross section of the same shape" as used in the present invention does not include structures such as air jet nozzles that protrude into the interior and obstruct the passage of large dust particles such as fallen leaves.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be implemented in other embodiments as well.

[Brief explanation of the drawing]

FIG. 1 is a side view of one embodiment of the present invention, FIG. 2 is a side sectional view of the main part, and FIG. 3 is a side view of another embodiment. Explanation of the symbols representing the main parts of the drawing, 1...
Blower, 47...Blower path, 49...Dust collection path, 59
...Dust container.

Claims (1)

[Scope of utility model registration request] A dust collection path 49 for guiding dust on the ground toward a dust container 59 that can be attached to and detached from the blower 1; and an air blowing path 47 that obliquely merges with the dust collection path 49 to blow pressurized air from the blower 1. The cross section of the dust collection path 49 is formed to have substantially the same shape over the entire length of the dust collection path 49.
A dust collecting device characterized in that the dust collecting passage 49 is provided with an opening on an inner wall surface thereof.