JPS6040655Y2 - Air cleaning device for engines in power-powered vacuum cleaners - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a vacuum cleaner that uses an engine as a driving source for running and brushes, and particularly relates to an air purifying device for cleaning intake air of the engine.

Conventional power-driven vacuum cleaners are subject to harsh working conditions, so we adopted a cyclone-type air cleaner to protect the engine and simplify maintenance. Although the cyclone type has superior performance compared to the general type, it has the disadvantage of being expensive, and the number of maintenance operations is extremely high, especially in dusty areas. It was troublesome.

An object of the present invention is to provide an air purifying device for an engine in a power-driven vacuum cleaner that eliminates the above-mentioned conventional drawbacks, requires no maintenance, and can reduce the cost.

Embodiments of the present invention will be specifically described below with reference to the drawings.

First, a first embodiment shown in FIGS. 1 and 2 will be described.

This embodiment is applied to a hand-held powered vacuum cleaner. In the figure, 1 indicates a vehicle body, and an air-cooled engine 2 is mounted approximately in the center of the vehicle body 1. A brush chamber 4 for accommodating a main brush 3 is formed substantially at the lower center of the vehicle body 1.

A dust box 5 is installed at the front lower part of the vehicle body 1 to store the dust swept by the main brush 3, and a filter box 6 is installed at the rear side of the vehicle body 1, and a shaker is installed in the filter box 6. A plurality of cassette-type filters 7 that can be operated to remove dust using a lever (not shown) are accommodated.

A push-in floor 8 is installed above the brush chamber 4 for sucking dust in the brush chamber 4 and discharging it into the filter box 6. It is driven via device 9.

Therefore, the air discharge lowers a of a suitable number of filters 7 among the cassette type filters 7 are communicated with the carburetor 10 of the engine 2 through the intake hose 11, and a part of the clean air filtered by the filters 7 is It is configured to be introduced into the engine 2.

In addition, 12 is a hand handle, 13 is a side brush, 1
4 is a wheel.

As described above, in this embodiment, a part of the filter 7 for filtering dust during cleaning work is also used as an air purifying device for the engine, and therefore, the carburetor 10 of the engine 2 is equipped with a filter 7 similar to a conventional air cleaner. In addition to introducing the necessary clean air into the engine, the dust removal operation using the shaker lever, which is performed periodically or as needed, becomes an immediate cleaning operation for the engine air cleaning device.

In other words, the engine air cleaning device requires no maintenance at all.

Further, since a part of the air force released into the atmosphere through the filter 7 is reduced by being introduced into the carburetor 10, leakage of noise is suppressed as much as possible, which is effective in slightly reducing noise.

Moreover, when the rotation of the engine 2 increases, the amount of air discharged from the floor 8 increases as the floor 8 rotates at a high speed, so the amount of air introduced into the carburetor 10 inevitably increases, and this acts in the same way as a supercharger. Therefore, it is expected that the output of engine 2 will increase.

Next, a second embodiment of the present invention will be explained based on FIGS. 3 and 4.

This embodiment is applied to a mounted power-propelled vacuum cleaner. In this type of vacuum cleaner, the engine 2 is water-cooled and is housed in the rear of the vehicle body 1, and the dust box 5 is located below. The dust box 5 is of an integrated type with a pan formed therein and a filter chamber accommodating a filter 7 formed on the upper side thereof, and the dust box 5 is attached to the vehicle body 1 so as to be dampable.

Furthermore, the floor 8 is used as a suction type, and one side of the vehicle body 1 (
The suction duct 8a is separably connected to one side of the filter chamber so as to correspond to the damping operation, and the exhaust duct 8b is located on the opposite side of the driver's seat 15.
is opened on the side of the vehicle body.

In the vacuum cleaner as described above, the other side of the filter chamber (driver's seat side) and the carburetor 10 of the engine 2 are communicated through an intake hose 11, and clean air filtered by the filter 7 is sucked into the engine 2. It has become so.

Note that the intake hose 11 may be separably connected to the filter chamber to accommodate the damping operation of the dust box 5, or may be separably connected to the filter chamber.
Alternatively, they may be connected with an appropriate amount of slack, or may be made of a stretchable material.

The second embodiment is configured as described above, and therefore, in addition to achieving the same effects as the first embodiment, the filter chamber has a suction action by the floor 8 and a suction action by the engine 2. acts from both sides, the pressure within the filter chamber is made almost uniform, and it becomes possible for the filter 7 to perform an effective filtration action.

As described in detail above, the present invention allows the filter for dust filtration during cleaning work to also be used as an air purifying device for the engine, which makes it possible to omit the existing air cleaner and reduce maintenance. This invention frees you from completely unnecessary and troublesome work, and greatly helps reduce production costs.
It is possible to secure an amount of intake air corresponding to the engine speed, and according to the air amount distribution, the same effect as a supercharger can be obtained, thereby improving engine performance.

Furthermore, as a result of reducing the amount of air discharged outside the vehicle through the filter, there is also an effect that cannot be overlooked, which can also contribute to noise reduction.

[Brief explanation of drawings]

The drawings show embodiments of the present invention; FIG. 1 is a side view of a hand-held powered vacuum cleaner according to the first embodiment, FIG. 2 is a plan view of the same, and FIG. 3 is a view of the second embodiment. FIG. 4 is a side view showing a boarding type power running vacuum cleaner. 1...Car body, 2...Engine, 7...
...Filter, 8...Floor, 10...
...Carburetor, 11...Intake hose.

Claims (1)

[Scope of utility model registration request] In a vacuum cleaner powered by an engine, a clean air outlet of a filter chamber formed in a part of a vehicle body to filter dust generated in a dust box during cleaning work is connected to a carburetor of the engine via a hose. Accordingly, an air purifying device for an engine in a power-driven vacuum cleaner is provided, in which a filter chamber for purifying a dust box is also used for purifying intake air for the engine.