JP3127566B2 - 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. 8 and 9 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. Each bristle 54 is implanted so as to extend in the radial direction.

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, as shown in FIGS. 10 (a) to 10 (e),
The tip of the brush bristles 54 cannot be protruded from the concave portion 55 and is caught inside and draws a linear locus, and cannot draw a normal circular locus 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. 11, the brush bristles 54 are entangled inside the brush bristles 54 arranged in an annular shape, so that the cleaning area is reduced and
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 being entangled in the brush bristles to prevent a reduction in cleaning ability. It 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 constructed by implanting brush bristles in an annular shape with respect to a support bracket. The gist is that the bristle is inclined with respect to a line extending in the radial direction from the center of rotation of the support bracket, and is implanted so that its tip extends in the direction opposite to the rotation direction of the brush bristle.

[0010]

When the side brush moves in a state in which the tip of the brush bristles annularly planted on the support bracket is caught in the concave portion and the movement thereof is restricted, the brush bristles are radiated from the rotation center of the support bracket in the radial direction. The bristles are slanted with respect to the extending line, and the tips thereof are planted so as to extend in a direction opposite to the direction of rotation of the bristles, so that the bristles are bent more flexibly than when they are planted in the radial direction. Becomes larger. For this reason, the reaction force against the deflection of the brush bristles increases, and the tips of the brush bristles easily jump out of the concave portions.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will now be described with reference to FIGS.
Explanation will be given based on FIG. As shown in FIGS. 1 and 2, a dust box 2 for collecting dust is provided on the front side of the floor cleaning vehicle 1, and a main brush room 3 is provided at the center of the bottom of the floor cleaning vehicle 1 in the width direction of the vehicle. Is provided. 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 one front fender 5 of the floor cleaning truck 1, and a circular mounting bracket 6b is provided at a 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 4 can be swept into the cleaning area of the main brush 4 by the side brush 7.

The side brush 7 includes a rotary plate 10 as a circular support bracket mounted on the mounting bracket 6b with bolts 8 and nuts 9, and the rotary plate 10
And brush bristles 11 planted in the brush. The rotary plate 10 is provided with a plurality of insertion holes 10b through which the bolts 8 are inserted.

As shown in FIG. 3 and FIG.
Numeral 1 is planted so as to extend annularly and outwardly with respect to a tapered surface 10 a formed on the outer peripheral surface of the rotating plate 10. Further, the brush bristles 11 are inclined with respect to a line extending in the radial direction from the rotation center of the rotating plate 10 and the tip thereof is in the opposite direction to the rotation direction of the brush bristles 11, that is, the side brush 7
Are extended in the rotation direction (clockwise in FIG. 3).

Next, the operation of the side brush 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 surface 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. 5, when the tip of the brush bristles 11 of the side brush 7 enters the recess 12 of the road surface, the brush bristles 11 are rotated by the rotation of the side brush 7 and the traveling of the floor cleaning truck 1. The movement of the brush bristles 11 is restricted, and the tip of the brush bristles 11 tends to be caught inside.

In the prior art, as shown in FIG. 6, the brush bristles 11 are planted on the rotating plate 10 so as to be radial with respect to the center of the rotating plate 10, so that the brush bristles 11 Even when the floor cleaning truck 1 runs with the tip of the brush bristles, the amount of deflection of the brush bristles 11 is small, and the reaction force for returning to the original state is also small. Therefore, the tip of the brush bristles 11 is caused by the elastic force of the brush bristles 11 itself so that the recesses 1
Difficult to jump out of 2.

On the other hand, in the present invention, the brush bristles 11 are implanted so as to extend in the direction opposite to the rotation direction, so that the brush bristles 1 travel while the floor cleaning truck 1 travels the same distance. 11 is greatly bent as compared with the conventional art as shown by the solid line in FIG.

Therefore, even under the same conditions, the amount of bending of the bristles 11 itself increases, and the reaction force thereof increases, so that the bristles 11 easily jump to the position shown by the two-dot chain line due to the elastic force of the bristles 11. Therefore, it is possible to prevent the brush hairs 11 from being entangled inside. Therefore, the locus of the brush bristles 11 can be made circular to clean the road surface. 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 decreasing.

In this embodiment, the side brush 7 is provided on one of the front fenders 5, but it is also possible to provide the side brush 7 on the other front fender 5, as shown in FIG. In this case, the direction in which the bristle 11 of the side brush 7 provided on the other front fender 5 is implanted is opposite to that of the one side brush 7.

Further, the inclination angle of the brush bristles 11 may be appropriately changed.

[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 partial plan view showing a state where a side brush is provided on a floor cleaning truck.

FIG. 3 is a plan view of a side brush.

FIG. 4 is a sectional view of a side brush.

FIG. 5 is an explanatory view showing a bent state when the bristles of the side brush according to the present invention enter a concave portion.

FIG. 6 is an explanatory view showing a state in which the bristles of the conventional side brush bend when the bristles enter the recess.

FIG. 7 is a partial plan view showing another example in which a pair of side brushes is provided.

FIG. 8 is a perspective view showing a conventional side brush.

FIG. 9 is a sectional view of a conventional side brush.

FIGS. 10A to 10E are explanatory diagrams illustrating that the bristles of the side brush enter the concave portion of the road surface and the bristles are caught inside.

FIG. 11 is a plan view 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]

7 ... side brush, 10 ... rotary plate as support bracket, 11 ... bristles,

Claims (1)

(57) [Claims] 1. A side brush of a floor cleaning truck constructed by implanting brush bristles in an annular shape with respect to a support bracket, wherein the brush bristles are extended with respect to a line extending radially from a rotation center of the support bracket. A side brush of a floor cleaning truck planted so as to be inclined and having its tip extending in a direction opposite to the direction of rotation of the brush bristles.