JP3134486B2 - Floor cleaning car side brush - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side brush for a floor cleaning truck.

[0002]

2. Description of the Related Art In a conventional floor cleaning truck, dust on the floor is swept up into a dust box by a main brush rotating at the bottom of the vehicle. The side brush sweeps dust outside the width of the main brush into the cleaning area of the main brush.

FIGS. 5 and 6 show the structure of this side brush. The side brush 51 includes a support bracket 52 formed in a disk shape, and brush bristles 54 which are annularly implanted on a tapered surface 53 of a lower peripheral edge of the support bracket 52 and extend outward.

The support bracket 52 is mounted on a mounting bracket of a rotary driving device in a floor cleaning truck (not shown). When the support bracket 52 is rotated by the rotation driving device, dust outside the width of the main brush is swept by the brush bristles 54 into the cleaning area of the main brush.

[0005]

However, when cleaning an uneven road surface (floor surface) such as, for example, asphalt, the brush bristles 5 on the rotating side brush 51 are required.
When the floor cleaning vehicle travels in a state in which the vehicle 4 enters the concave portion 55 of the road surface, the tip of the brush bristles 54 cannot jump out of the concave portion 55 as shown in FIGS. It is caught inside and draws a linear trajectory, and does not draw a normal circular trajectory indicated by a chain line.

Accordingly, each brush bristle 54 is formed into a concave portion 55 on the road surface.
As shown in FIG. 8, the brush bristles 54 are caught inside the brush bristles 54 that are planted in an annular shape.
However, there is a problem that the cleaning ability of the device is reduced.

If the rotation speed of the side brush is increased, entrapment can be prevented. However, if the rotation speed is high, dust is excessively blown out and the amount of generated dust increases. Therefore, the number of rotations must be kept at a certain level. However, in this case, there is a problem that if the cleaning speed is increased, the bristles of the side brushes are entangled.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a floor cleaning truck which prevents a side brush from falling into the inside of a brush to prevent a reduction in cleaning ability. The object is to provide a side brush.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a side brush for a floor cleaning truck, which is constructed by implanting brush bristles in an annular shape with respect to a support bracket. The gist is that an auxiliary member having an annular regulating portion for preventing the brush hair from being caught inside is arranged inside the annularly planted brush hair.

[0010]

When the side brush moves in a state where the tip of the brush bristles annularly planted with respect to the support bracket is caught in the concave portion and the movement thereof is restricted, the bristles are bent.
The brush bristles come into contact with the annular regulating portion of the auxiliary member while the brush bristles bend. Then, as the side brush moves, the tip of the brush bristles jumps out of the recess due to the elastic force of the bristles. Therefore, the bristle of the brush hair is prevented by the auxiliary member. Therefore, even when the brush bristles enter the concave portion of the road surface and the movement thereof is restricted when the side brush is rotating, the brush bristles come into contact with the annular regulating portion of the auxiliary member, so that the brush bristles are wrapped inward. Is prevented.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will now be described with reference to FIGS.
This will be described with reference to FIG. As shown in FIG. 1, a dust box 2 for collecting dust is provided on the front side of a floor cleaning car 1.
A main brush room 3 is provided in the center of the bottom of the floor cleaning truck 1 in the width direction of the vehicle. A main brush 4 is rotatably provided in the main brush room 3, and dust on the floor surface is swept up into the dust box 2 by the rotation of the main brush 4.

A drive motor 6 is provided in the front fender 5 of the floor cleaning truck 1, and a circular mounting bracket 6b is provided at the tip of a rotation shaft 6a of the drive motor 6. A side brush 7 is fixed to the mounting bracket 6b so that dust outside the width of the main brush can be swept into the cleaning area of the main brush 4 by the side brush 7.

As shown in FIGS. 1 and 3, the side brush 7 includes a rotary plate 10 as a circular support bracket mounted on the mounting bracket 6b by bolts 8 and nuts 9, and a lower portion of the rotary plate 10. The brush bristles 11 are provided so as to extend in an annular shape and outwardly with respect to the tapered surface 10a provided on the peripheral edge.

An auxiliary member 12 is provided inside the side brush 7, that is, inside the bristle 11 which is planted in an annular shape.
Are arranged. The support bracket 13 of the auxiliary member 12 is formed by bending both ends of an aluminum plate, and the support bracket 13 shares the bolt 8 and the nut 9 for mounting the rotary plate 10 to the mounting bracket 6b. It is mounted on the back of the rotating plate 10. At both ends of the support bracket 13, there are provided restricting portions 14 made of aluminum in which a bar is formed in a ring shape. The restricting portion 14 is formed so as not to be eccentric when rotated. The restricting portion 14 comes into contact with a substantially central portion of the brush bristles 11.

Next, the operation of the side brush 7 configured as described above will be described. The floor cleaning truck 1 starts traveling with the main brush 4 and the side brush 7 rotated in order to perform a cleaning operation. Then, the main brush 4
Sweeps up dust on the floor and collects it in the dust box 2. The side brush 7 sweeps dust outside the width of the main brush 4 into the cleaning area of the main brush 4.

In this state, as shown in FIG. 3, when the tip of the brush bristles 11 of the side brush 7 enters the concave portion 15 of the road surface R, the movement of the tip is regulated, and the rotation of the side brush 7 and the floor cleaning are performed. The brush bristles 11 are bent by the traveling of the car 1. Then, the support bracket 1 of the auxiliary member 12
The bristles 11 abut on the restricting portions 14 provided on the third member 3 to restrict the bending.

The tip of the brush bristles 11 can easily fly outward from the recess 15 by the elastic force of the brush bristles 11. That is, the tip of the brush bristles 11 is fitted into the concave portion 15, and the winding of the brush bristles 11 is reliably regulated by the operation of the regulating section 14.

Accordingly, the brush bristles 11 draw a circular trajectory by the rotation of the rotary plate 10. As a result, the bristles 11 of the side brush 7 can reliably sweep dust outside the width of the main brush 4 into the cleaning area of the main brush 4 and prevent the cleaning ability of the side brush 7 from lowering. Can be.

In the present embodiment, the support bracket 13 and the restricting portion 14 of the auxiliary member 12 are made of aluminum to reduce the weight. However, any material having a strong strength such as iron, ceramic, reinforced plastic, or the like can be used. Such a material may be used.

In this embodiment, the auxiliary member 12 is attached to the rotating plate 10 by the bolts 8 and nuts 9 connecting the side brush 7 and the mounting bracket 6b. The rotating plate 10
It is also possible to constitute so that it may be attached to.

Further, in this embodiment, the auxiliary member 12 is constituted by the support bracket 13 and the ring-shaped restricting portion 14. In addition, the inside as shown in FIGS. 4 (a) and 4 (b) is hollow. In addition, it is also possible to configure the auxiliary member 15 in the shape of a truncated cone with the lower part opened.

[0022]

As described above in detail, according to the present invention, there is an excellent effect that the brush bristles of the side brush can be prevented from being entangled and the cleaning ability of the side brush can be prevented from being reduced.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a state in which a side brush according to the present invention is mounted on a floor cleaning vehicle.

FIG. 2 is a perspective view showing a shape of an auxiliary member.

FIG. 3 is an explanatory diagram for explaining prevention of entrapment of brush bristles by an auxiliary member.

FIG. 4A is a perspective view showing another example of the auxiliary member,
(B) is sectional drawing of another example of an auxiliary member.

FIG. 5 is a perspective view of a conventional side brush.

FIG. 6 is a sectional view of a conventional side brush.

FIGS. 7A to 7E are explanatory views for explaining that the bristles of the side brush enter the concave portion of the road surface and the bristles are caught inside.

FIG. 8 is a plan view of the side brush showing that the bristles of the side brush enter the concave portion of the road surface and the bristles are wound inward.

[Explanation of symbols]

Reference numeral 10: rotating plate as a support bracket, 11: brush bristle, 12: auxiliary member, 14: regulating portion

Claims (1)

(57) [Claims] 1. A side brush of a floor cleaning truck configured by implanting brush bristles in a ring shape with respect to a support bracket, wherein the brush bristles are arranged inside the ring-shaped brush bristles. A side brush of a floor cleaning truck provided with an auxiliary member having an annular restricting portion for preventing it from getting caught inside.