JPS5941228Y2 - Sweeper with interlockable shutter and pre-filter - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a sweeper shutter device.

As shown in Figure 1, in this type of sweeper, relatively heavy objects swept up by the main brush 1 enter the dust box 2 by centrifugal force, and fine and light dust is sucked up from the suction port of the proa 3 and filtered. The air is sent to the chamber 4, separated into air and dust by the filter 5 in the same chamber 4, and only the air is released to the outside of the vehicle.

Conventionally, as shown in FIG. 2, the suction conduit 6 of the proa
Inside, a shutter 7 is provided which can be externally operated via a cable 8.

For example, when cleaning a puddle or a rainy road, the water on the road surface turns into fine particles by the main brush 10 revolutions, which are easily sucked by the suction force of the proar 3 and sent to the filter chamber 4, so that the filter 5 gets wet. This causes dust to accumulate, causing early clogging of the filter 5 and further damage to the filter 5 due to moisture.

In such a case, the shutter 7 is closed and the proar 3 is rotated idly to prevent moisture from entering the proar 3.

Furthermore, as shown in FIGS. 2 and 3, a wire mesh pre-filter 9 is provided at the suction port of the suction conduit 6 in the proa 3.

This pre-filter 9 serves to prevent light fibrous materials, etc., which are kicked up together with dust by the main brush 10 rotations, from entering the proar 3 and becoming entangled with the impeller 10 of the proar 3.

However, if the adhesion to the pre-filter 9 progresses to a certain extent, it will become clogged, causing a decrease in the suction ability of the proar 3, and the clumps will not be sucked into the proar 3 but will come out of the vehicle body.

Therefore, it is necessary to clean the prefilter 9 regularly.

As explained above, although the shutter 7 and pre-filter 9, which play an important role in the sweeper, originally have separate functions, they are both related to increasing and decreasing the suction force of the proar 3, and can be operated separately. The work was troublesome.

In particular, Pre-filter 9 has the role of Proa 3.
During suction, the suction port of the suction conduit 6 must be blocked, and for example, as shown in FIG. 3, it is necessary to fix a swing-type pre-filter 9 with a butterfly port T-9a to facilitate cleaning. Ta.

Therefore, each time the pre-filter 9 is cleaned, the butterfly plug 9a must be loosened or tightened, which is a cumbersome task.

This idea connects the pre-filter and the shutter with a connecting rod, and when cleaning the pre-filter, the tilting operation is linked to the shutter operation, and the pre-filter that moves with the shutter can be easily cleaned using the main brush. to provide blower shutter equipment.

An example embodying this idea is shown in FIG. 1 below.

This will be explained in detail according to FIGS. 4 and 5.

The main brush 1 is supported by a brush arm 11, is swingable by a link mechanism (not shown), and is rotatable in the direction of arrow A.

There is a dust box 2 on one side of the main brush 10, and a dust box lip 12 is attached to one side of the lower part of the dust box 2 so that the dust swept up by the main brush 1 can be easily stored in the dust box 2.

An upper lip 14 and a lower lip 15 are attached around the ends of a frame 13 surrounding the upper and lower sides of the main brush 1.

And frame 13, dust box 2, each lip 1
A brush chamber 16 for housing the main brush 1 is formed inside the 2.14° 15.

There is a filter chamber 4 on one side of the frame 130, into which a filter 5 is attached.

A dust pan 11 is removably attached to the lower part of the filter chamber 4.

There is a suction port 18 above the brush chamber 16, and a suction conduit 6
The blower 3 and the suction port 18 are communicated with each other.

An impeller 10 is rotatably mounted in the blower 3.

In addition, 19 is a steering wheel, 20 is a motor, and 21 is a side brush.

Next, the interlocking mechanism of the filter 22 and the prefilter 23 will be explained.

Inside the suction conduit 6, a shutter 22 is rotatably mounted on a shaft 22a.
A shutter lever 24 is fixed to M22a.

A cable 25 is connected to the outer end of the shutter lever 24, and the tip of the cable 24 is extended to near the handle 190, and a knob 26 is attached thereto.The shutter 22 can be remotely controlled by the knob 26.

Further, the pre-filter 23 is connected to the brush chamber 1 with respect to the frame 13.
6 is rotatably supported on a shaft 23a at a position that closes the suction port 18 above.

The prefilter 23 and the shutter 22 are rotatably attached at both ends of a connecting rod 27 so that they can interlock with each other.

Therefore, by pulling or pushing the knob 26, the filter 22 and the pre-filter 23 can open and close the suction conduit 6 and the suction port 18 in conjunction with each other.

Reference numeral 28 denotes a guide plate installed in the suction conduit 6, which is curved along the locus of movement of the tip of the shutter 22 when the shutter 22 descends from a horizontal state (as shown by the imaginary line in FIG. 5).

Now, during sweeper cleaning, the main brush 1 is in contact with the ground (as shown by imaginary lines in FIGS. 4 and 5).

In this state, as shown in FIG. 5, the shutter 22 opens the suction conduit 6, and in conjunction with the shutter 22, the prefilter 23 closes the suction port 18.

Therefore, the relatively heavy dust swept up by the main brush 1 is transferred to the dust box lip 1 into the dust box 2.
2 is accommodated as a guide.

On the other hand, the brush chamber 16 is not stored in the same dust box 2.
Dust, lint, paper pieces, etc. that fly up inside are guided to the suction port 18 by the suction force of the blower 3.

Since this suction port 1B has a pre-filter 23, it is possible to prevent lint, paper pieces, etc. from entering the blower 3 through the suction conduit 6.

Note that since the shutter 22 opens the suction conduit 6, the dust raised by the main brush 1 is sent from the blower 3 to the filter chamber 4 through the pre-filter 23 by the forced suction force of the blower 3.

Further, during sweeper running, the main brush 1 is in a state separated from the ground (as shown by the solid line in FIGS. 4 and 5).

When the knob 26 is pulled in this state, the shutter 22 becomes horizontal and closes the suction conduit 6 as shown by the imaginary line in FIG.
3 tilts downward.

Therefore, the pre-filter 23 slides into contact with the main brush 1, and lint, paper pieces, etc. attached to the pre-filter 23 can be automatically removed.

Note that since the shutter 22 closes the suction conduit 6, the floor 3 idles and does not apply suction force to the brush chamber 16.

As the bristles of the main brush 10 gradually wear out and become shorter as they are used, the pre-filter 23 in contact with the main brush 1 follows suit and tilts downward as shown in FIG.

Therefore, in conjunction with the tilting of the pre-filter 23, the shutter 22 also tilts downward from the horizontal state as shown in FIG. The guy 22 still keeps the suction conduit 6 closed.

In order to maintain this state, when the main brush 1 is new, the main brush 1 and the pre-filter 23 should be in contact with each other while the main brush 1 is running, and the 7-piece 22 should close the suction conduit 6. When it reaches its maximum,
It is necessary to set the tilting stroke of the gray filter 23 up to the point where the prefilter 23 comes into contact with the main brush 1, and to maintain the length of the guide plate 28 and the tilting angle of the shutter 22 accordingly.

As detailed above, this invention allows the shutter 22 and the pre-filter 23 to be interlocked by the connecting rod 27, so that when the shutter 22 moves in the direction of opening or closing the suction conduit 6, the gray filter 23 is connected to the main brush. 1, the shutter 22 and pre-filter 23, which were conventionally operated separately, can now be operated with a single knob 26, eliminating the hassle of work. In addition, by applying this interlocking mechanism, the pre-filter 23 can be brought into contact with the main brush 1, and the cleaning power of the pre-filter 23 can be easily and reliably brought into contact with the main brush 1. This has the effect of improving the efficiency of the sweeper as a whole. This is an excellent idea for industrial use as a shutter device.

[Brief explanation of drawings]

Figure 1 is a schematic diagram showing the suction path of the sweeper, Figures 2 and 3 are diagrams showing the conventional shutter and pre-filter mechanism, and Figure 4 is a diagram showing the suction path of the sweeper incorporating the pro-a-shutter device according to this invention. FIG. 5 is a diagram showing the main part of the route, and FIG. 5 is a diagram showing the proar shutter device.

Claims (1)

[Claims for Utility Model Registration] 1. A main brush that sweeps up dust by rotation, a proer that sucks up the dust swept up by the in-brush through a suction conduit, and a filter that filters the dust sent out from the blower. In a sweeper equipped with a filter chamber, a shutter that can open and close the suction conduit on the floor is provided, and a pre-filter is provided in the suction port of the conduit so that it can be tilted, and the shutter and the pre-filter are Interlockable, characterized in that a connecting rod is provided between the filters so that when the shutter moves in the direction of opening or closing the suction conduit, the pre-filter tilts in a direction away from or in contact with the main brush. Sweeper with shutter and pre-filter. 2. A utility model in which a guide plate is provided in the floor suction conduit along the movement trajectory of the shutter tip so that the shutter always closes the conduit when the pre-filter follows and descends as the bristles of the main brush wear down. A "sweet" equipped with an interlockable shutter and a pre-filter according to claim 1.