JPH0641684B2 - Floor scatter prevention device for cleaning vehicle - Google Patents

Description

TECHNICAL FIELD The present invention relates to a dust scattering prevention device for a floor cleaning vehicle.

[Conventional technology]

The floor cleaning vehicle shown in FIGS. 5 and 6 collects dust on the floor in the vehicle dust box 32 by rotating the main brush 31 extending substantially in the width direction of the vehicle about the horizontal and horizontal axes at the bottom thereof. . Then, on the side of a wall or the like, while the vehicle is running closer to it, the side brush 33 attached to the side of the front bottom portion of the vehicle is rotated about an axis that is substantially vertical, so that the side brush 33 moves from the corner as shown in FIG. The dust is swept away and is collected by the main brush 31 at the rear as the vehicle runs.

[Problems to be Solved by the Invention]

However, when the side brush 33 is rotated as described above, dust is blown off more than the width of the main brush 31 as shown in FIG. 6, and the dust is not collected despite the dust being within the cleaning range of the floor surface. It may not be done reliably. In order to prevent this, the side brush 33 is rotated at a constant rotation speed to weaken the momentum. This makes it possible to avoid scattering of dust, but at the same time, the movement of the dust by the side brushes 33 is slowed down, and cleaning work with low efficiency is inevitable.

The present invention has been made to solve the above-mentioned problems, and an object thereof is to prevent scattering of dust during high-speed rotation of a side brush and to reliably collect dust within a floor cleaning range. Another object of the present invention is to provide a dust scattering prevention device for a floor cleaning vehicle, which enables efficient cleaning work.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention is a main brush that rotates around a horizontal horizontal axis at the bottom of a vehicle and collects dust on a vehicle traveling path in a dust processing mechanism provided in the vehicle,
In a floor cleaning vehicle provided with a side brush that rotates around a substantially vertical axis in a lower front portion of the vehicle and sweeps dust on a floor surface adjacent to a traveling path of the vehicle into a recovery range of a main brush, A blocking means is provided in front of the side brush to prevent dust from scattering outside the collection range of the main brush when the side brush rotates.

[Action]

By adopting the above-mentioned means, the present invention prevents dust that is blown off by the rotation of the side brush about the vertical axis from being scattered by the blocking means outside the recovery range of the main brush, and always treats dust. It stays in a place where it can be collected in the mechanism.

〔Example〕

Hereinafter, the first embodiment of the present invention will be described in detail with reference to FIGS.

In the floor cleaning vehicle shown in FIGS. 1 and 2, between the front and rear wheels 2 and 3 of the vehicle 1, a main brush 4 extending substantially in the entire width direction of the vehicle 1 is provided rotatably around a horizontal horizontal axis. .
When the main brush 4 rotates, it sweeps up dust on the floor surface and sends it to the opening 6 of the dust box 5. The dust box 5 communicates with a vacuum fan 7. The dust sucked from the dust box 5 by the negative pressure of the vacuum fan 7 is filtered by the cartridge filter 8, and then the clean air is blown out from the rear portion of the vehicle 1. The dust box 5, the vacuum fan 7 and the cartridge filter 8 constitute the dust processing mechanism of the present invention.

An arm 9 extending forward is fixed to a front portion of the vehicle 1, and a side brush 10 is attached to a lower surface of a front end portion of the vehicle 1 so as to be rotatable about a substantially vertical axis by a drive mechanism (not shown). The side brush 10 is provided on the road W and on a traveling road where the free traveling of the vehicle 1 is restricted,
Dust existing at a position separated from the vehicle 1 toward the wall W is swept within the width of the vehicle 1, that is, from outside the recovery range of the main brush 4 to within the recovery range.

An outer brush 11 as a shielding means is arranged in front of the side brush 10, and a holding portion 13 in which a large number of hair-like bodies 12 are planted extends from the central portion of the arm 9 and the upper surface of the front end portion. It is fixedly supported by the arm 9 via the two support bars 14 and 15.

The bristles 12 of the outer brush 11 are formed of a soft material having a low stiffness, and their lower ends are in contact with the floor so that no gap is formed between the bristles 12 and the floor. The outer brush 11 has one end on the wall W side and the other end on the line L connecting the outer side of the opening 6 of the dust box 5 opposite to the wall W and the outer periphery of the side brush 10, It extends in a quarter arc shape within the width of the main brush 4. Then, when the dust on the floor surface is blown off by the rotation of the side brush 10, it collides with the bristles 12 of the outer brush 11 to prevent the dust from flying outward. Further, even if dust is repelled at the time of the above-mentioned collision, it does not deviate from the line L to the outside.

By the way, during cleaning, dust on the floor surface on the wall W side is swept into the recovery range of the main brush 4 by the rotating side brush 10, and as the vehicle 1 advances, the main brush 4
Are collected in the dust box 5. At this time,
Since the range in which dust is blown off is limited to the inner circumference of the outer brush 11 and the inside of the line L, the side brush 10
Even if the is rotated at a high speed, the dust is surely collected by the main brush 4.

Furthermore, when relatively heavy dust such as stone S exists outside the outer brush 11 when the vehicle 1 moves forward, the third
As shown in the figure, the hairy body 12 pushed by the stone S bends so as to avoid the stone S, so that the main brush 4 collects the stone S within the collection range into the dust box 5 as the vehicle 1 travels. . When the hairs 12 are pressed by these heavy dusts, only the corresponding part bends, so that there is no gap between the closely adjacent hairs 12 and the side brush 1
The dust that was blown off at 0 is the outer brush 1 through the gap.
It is prevented from escaping to the outside of 1.

Subsequently, a second embodiment of the present invention will be described with reference to FIG. In this embodiment, one support bar 17 fixed to the central portion of the holding portion 13 of the outer brush 11 is attached to the arm 9 via a rotary shaft 18. And vehicle 1
Operating lever 1 attached to the steering wheel 18 provided in the driver's seat
9 is connected to the rear end of the support bar 17 via the outer cable 20 and the inner cable 21, and the operating lever 19
Is operated backward, the support bar 17 is rotated clockwise about the rotation shaft 18 via both cables 20 and 21. As a result, the outer brush 11 is rotated upward as shown by the chain double-dashed line, and a gap is created between the bristles 12 and the floor surface.

In the above configuration, when the vehicle 1 is moving forward, extremely lightweight dust such as paper dust and thread dust existing in front of the outer brush 11 is pushed by the hair 12 when the vehicle 1 travels, and is moved by the hairy body 12 contrary to the above. At this time, the outer brush 11 is retracted upward by operating the lever 19 so that dust is removed from the outer brush 1.
It is to avoid that the vehicle 1 is pressed and moves with the vehicle 1. Therefore, the dust is reliably collected by the main brush 4 regardless of the weight.

〔The invention's effect〕

As described above in detail, according to the present invention, it is possible to reliably collect dust within the floor surface cleaning range, and further, it is possible to achieve an efficient cleaning operation.

[Brief description of drawings]

FIG. 1 is a schematic side view showing a first embodiment of the present invention, FIG. 2 is a plan view showing the front part of FIG. 1, FIG. 3 is a perspective view showing a side brush and an outer brush, and FIG. FIG. 5 is a side view showing a second embodiment, FIGS. 5 to 7 show conventional examples, of which FIG. 5 is a schematic side view showing a conventional example, and FIG. 6 is a plan view of FIG. , FIG. 7 is a front view showing a usage state of the side brush. A vehicle 1, a main brush 4, a dust box 5 as a dust removal mechanism, a vacuum fan 7 and a cartridge filter 8, a side brush 10, and an outer brush 11 as a blocking means.

Claims (1)

[Claims] 1. A main brush that rotates around a horizontal horizontal axis at the bottom of a vehicle and collects dust on a running path of the vehicle by a dust processing mechanism provided in the vehicle, and a shaft that is substantially vertical at a lower front portion of the vehicle. In a floor cleaning vehicle equipped with a side brush that rotates around and sweeps dust on the floor adjacent to the running path of the vehicle into the collection range of the main brush, in front of the side brush, the rotation of the side brush Occasionally, a dust scattering prevention device for a floor cleaning vehicle is provided with a blocking means for preventing dust scattering outside the collection range of the main brush.