JPH11124824A - Floor surface scavenger's cart - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor surface scavenger's cart capable of stably performing scavengery without leaving it unfinished even on a floor surface and the like having unevenness and contriving the long life of a side brush. SOLUTION: A floor surface scavenger's cart providing a dust box for collecting dust, a main brush for scavenging up dust on a floor surface in a dust box and a side brush 4 for scavenging and collecting dust for the scavenging area of the main brush on a vehicle is provided. The side brush 4 is attached to the edge of an arm 5 swingably disposed in the upper and lower directions. A wheel 6 for regulating the height of the side brush 4 and the floor surface is turnably disposed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor cleaning vehicle for cleaning floors, roads, and the like.

[0002]

2. Description of the Related Art A floor cleaning vehicle is capable of collecting dust on a floor surface after traveling by traveling on a floor surface, a road surface, etc. (hereinafter referred to as a floor surface) and cleaning the vehicle. It is. Such a floor cleaning truck is described in FIG.
As shown in FIG. 5, the vehicle 10 includes a dust box 2 for collecting dust and a main brush 3 for sweeping dust 88 on the floor surface in the dust box 2.
In the vehicle 10, a side brush 4 for sweeping and collecting dust into the cleaning area of the main brush 3 is disposed in front of the vehicle 10.

[0003] The side brush 4 makes brush bristles 40 planted on a disk-shaped substrate abut on the floor surface 8 and rotates the brush bristles on a substantially horizontal plane, thereby removing dust on the floor surface 8 of the vehicle 10. It is configured to be swept to the front center. Therefore, the side brush 4 is rotatably disposed at the tip of the arm 5 extending forward from the side surface of the vehicle 10.

More specifically, as shown in FIG.
Has a built-in gear box 52 connected to a belt 51 driven by a motor (not shown), and a rotating shaft 9 is provided downward from the gear box 52. The rotating shaft 9 is provided with a plurality of through holes 91 for connection.

On the other hand, a side brush 4 having a pipe-shaped bracket 94 provided with a through hole 940 for connection is used. Then, the rotating shaft 9 is inserted into the bracket 94 of the side brush 4 and the bolt 98 is inserted.
Through the bracket 94 and the rotating shaft 9 so that the nut 99
The two are fixed by tightening. The height of the side brush 4 is adjusted only by selecting the through hole 91 of the rotating shaft 9.

The main brush 3 is a cylindrical brush having brush bristles 30 radially implanted on the outer surface of a core rod. Further, the main brush 3 has its rotation axis arranged in a direction perpendicular to the forward direction of the vehicle 10, and is configured to sweep dust on the floor into the dust box 2 by rotation.

[0007] When the floor sweeper is driven,
First, dust on the floor surface is collected in the cleaning area at the front center of the vehicle 10 by the side brush 4, and then the dust is collected into the dust box 2 by the main brush 3 as the vehicle 10 advances.

[0008]

However, the above-mentioned conventional floor cleaning truck has the following problems. That is, if the floor surface, the road surface, or the like to be cleaned has irregularities, unsweeping or the like may occur, and sufficient cleaning may not be performed. Specifically, as shown in FIG. 6, when the side brush 4 rides on the convex portion 81 on the floor, the contact pressure between the tip of the brush bristles 40 and the floor changes. Thereby, the brush bristles 40 are greatly deformed. This big deformation is brush bristles 4
If it is set to 0, the subsequent restoration of the brush bristles 40 causes a delay in the brush rotation speed, and the action of sweeping dust is greatly reduced.

Further, when the side brush 4 moves from the convex portion 81 to the flat portion or from the flat portion to the concave portion, the side brush 4 does not sufficiently contact the floor surface, and the dust on the floor surface remains as it is. It can also happen. In addition, brush hair 4
When the use of the side brush 4 is repeated in a state where the large deformation of 0 is repeated, the brush bristles 40 cannot be restored to the original state while being deformed, and the life of the side brush 4 is extremely shortened.

The present invention has been made in view of the above-mentioned conventional problems, and can stably perform a cleaning operation without leaving unsweeped even on a floor surface having irregularities, and has a long service life of the side brush. It is an object of the present invention to provide a floor cleaning vehicle that can be used.

[0011]

According to a first aspect of the present invention, there is provided a dust box for collecting dust, a main brush for sweeping dust on a floor surface in the dust box, and sweeping and collecting dust in a cleaning area of the main brush. In a floor cleaning vehicle provided with a side brush and a vehicle, the side brush is attached to a tip end of an arm arranged so as to be able to swing up and down, and the side brush is attached to a ground surface side of the side brush. And a floor cleaning truck characterized in that wheels for regulating the height between the side brushes and the floor are rotatably disposed.

It is most remarkable in the present invention that the side brush is attached to the tip of an arm arranged to be able to swing up and down, and the side brush is provided on the grounding surface side of the side brush. That is, the wheels are provided.

The vertical swinging of the arm can be performed, for example, by disposing the rear end of the arm so as to be rotatable with respect to the vehicle. Further, it is preferable that the arm is appropriately biased downward by its own weight or a spring or the like described later. The side brush is provided with the wheel. This wheel can be provided directly on the side brush, or it can be provided at the tip of the arm on which the side brush is mounted by extending the rotation axis of the arm.

Next, the operation of the present invention will be described. In the floor cleaning truck according to the present invention, the side brush is attached to a tip of an arm arranged to be vertically swingable, and the wheel is arranged on the ground surface side of the side brush. It is. For this reason, even when the floor cleaning truck travels on a floor surface having an uneven surface, it is possible to maintain a good contact state between the side brush and the floor surface.

That is, the wheel is provided on the side of the ground surface of the side brush. Therefore, as long as the wheel is in contact with the floor surface, the side brush can always maintain a predetermined distance from the floor surface. Further, the arm holding the side brush is arranged so as to be able to swing up and down. Therefore, when the floor surface to be cleaned has an uneven shape, the wheels can be made to contact the ground along the uneven shape of the floor surface and run while swinging the arm in the vertical direction.

Therefore, in the present invention, even when cleaning the floor surface having irregularities, the grounding state of the side brush can be always maintained in a good state, and the sweeping operation can be performed satisfactorily. . Further, large deformation of the brush bristles due to an excessive rise in the ground contact pressure to the side brush can be suppressed.

Therefore, the floor cleaning truck of the present invention can perform stable cleaning without generating unsweeped portions even when cleaning a floor surface having irregularities, and has a long service life of the side brush. Can be achieved.

Next, as in the second aspect of the present invention, it is preferable that the wheel provided on the side brush has a turning axis and a rotating axis of the wheel offset from each other. That is, it is preferable that the rotation axis of the wheel be provided at a position shifted from the turning axis of the wheel. In this case, when the direction of the floor sweeper is changed, the direction change of the wheels can be smoothly performed.

Further, it is preferable that the arm is provided with a spring for urging the arm toward the floor. In this case, the side brush can be lowered with high responsiveness when the side brush approaches a flat portion or a flat portion or a concave portion of the floor surface, and the ground state of the side brush is more reliably improved. Condition can be maintained.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment FIG. 1 shows a floor cleaning truck according to an embodiment of the present invention.
This will be described with reference to FIG. The floor cleaning truck 1 of this example is shown in FIG.
As shown in FIG. 5, a dust box 2 for collecting dust 88, a main brush 3 for sweeping dust on the floor in the dust box 2, and a side brush 4 for sweeping and collecting dust in a cleaning area of the main brush 3. Is provided on the vehicle 10.

The side brush 4 is attached to the tip of an arm 5 which is arranged to be able to swing up and down. As shown in FIG. 1, a wheel 6 for regulating the height between the side brush 4 and the floor is pivotably disposed on the side of the ground surface of the side brush 4. The details are described below.

As shown in FIG. 1, the arm 5 of this embodiment is disposed so as to be rotatable up and down around an arm fulcrum 50 with respect to the vehicle 10. Thereby, the arm 5 can be vertically swung. Further, as shown in FIG. 1, the arm 5 is provided with a spring 59 for urging the arm 5 toward the floor. Specifically, the spring 5
9 has one end 591 fixed below the arm fulcrum 50 of the vehicle 10 and the other end 592 fixed to the arm 5.

As shown in FIG. 1, the rotating shaft 51 provided on the arm 5 is made longer than before, and a plurality of bolt holes 511 for fixing the side brush 4 and a plurality of holes for fixing the wheel 6 are provided. It has a bolt hole 512. On the other hand, as shown in FIGS. 1 and 2, the side brush 4 has a doughnut-shaped brush bristles 40 implanted downward from a disk-shaped flocking plate 41, and an arm 5 is provided on the back surface of the flocking plate 41. A pipe-shaped bracket 42 for connecting to the rotating shaft 51 is provided.

The bracket of the side brush 4 includes
A bolt hole 422 through which a bolt 71 for fixing to the rotating shaft is inserted is provided. In the center of the flocking plate 41, a through hole 41 communicating with the inner hole 420 of the bracket 42 is provided.
0 is provided.

Then, as shown in FIG. 1, the inner hole 420 of the bracket 42 of the side brush 4 and the flocking plate 41
The rotary shaft 51 is inserted into the through holes 410 through the holes. And bolt hole 4 of bracket 42
The side brush 4 and the rotating shaft 51 are connected to each other by passing the bolt 71 through the bolt hole 511 of the rotating shaft 51 and the rotating shaft 51 and tightening and fixing with the nut 72.

Also, as shown in FIG.
The wheel 6 is disposed on the rotating shaft 51 protruding toward the grounding surface of the vehicle. The wheel 6 has a so-called caster-like structure, and offsets a turning shaft 61 of the wheel 6 and a rotating shaft 62 of the wheel 6. The turning shaft 62 of the wheel 6 is rotatably disposed on a wheel bracket 65 via a bearing 63.

The wheel bracket 65 has a pipe shape having an inner hole in the upper part thereof,
One tip is inserted. And the wheel bracket 65
Bolt hole 652 provided on the shaft and bolt hole 51 provided on the rotating shaft
2 and the bolt 73 and the nut 7
This is fastened and fixed by 4. In this embodiment, the wheels 6 are thus arranged on the ground surface side of the side brush 4. The other structures of the vehicle 10 and the like are the same as those of the related art.

Next, the operation of the present embodiment will be described. In the floor cleaning truck 1 of the present embodiment, the side brush 4 is attached to the tip of an arm 5 arranged so as to be able to swing up and down, and a wheel having the above-described structure is provided on the ground surface side of the side brush 4. 6 is provided. Therefore, even when the floor cleaning truck 1 is run on a floor having an uneven surface, the grounding state between the side brush 4 and the floor can be maintained in a good state.

For example, as shown in FIG. 3A, when the floor cleaning truck 1 is running on a flat floor surface 80,
By running the vehicle with the wheels 6 in contact with the ground, it is possible to maintain a good contact state between the side brush 4 and the floor surface 80.

As shown in FIG. 3 (b), when the side brush 4 is approaching the concave portion 82 which is recessed due to the advance of the floor cleaning truck 1, the wheel 6 is moved to the concave portion 8
Attempt to keep going along the ground along 2. As a result, the side brush 4 descends and the arm 5
Swings downward so as not to obstruct its descent. Therefore, as shown in the figure, the side brush 4 can maintain a good ground contact state even if the floor surface is the recess 82.

In this embodiment, the arm 59 is provided with the spring 59 described above. Therefore, when the recess 82 is suddenly approached from the flat portion, the arm 5 and the side brush 4 are pushed down with high responsiveness by the urging force of the spring 59.

As shown in FIG. 3 (c), when the side brush 4 approaches a convex portion 81 which is raised in a convex shape due to the advance of the floor cleaning truck 1, the wheel 6 is moved to the convex portion 81. Try to keep going along the ground. Therefore, the side brush 4 rises accordingly, and the arm 5 swings upward so as not to hinder the movement.
Therefore, as shown in the figure, the side brush 4 can maintain a good ground contact state even if the floor surface is the convex portion 81.

As described above, since the wheels 6 are provided on the ground surface side of the side brush 4, as long as the wheels 6 are grounded on the floor surface, the distance from the floor surface is always kept at a predetermined distance. Can be maintained. Further, since the arm 5 holding the side brush 4 is arranged to be swingable in the vertical direction, as described above, even if the floor surface has an uneven shape, the swing of the arm 5 causes the arm 5 to swing. The contact between the wheels and the floor can be maintained at all times.

Therefore, in this embodiment, even when cleaning the floor surface having irregularities, the grounding state of the side brush 4 can be always maintained in a good state, and the sweeping operation can be performed satisfactorily. it can. Also, large deformation of the brush bristles 40 due to an excessive rise in the ground pressure to the side brush 4 can be suppressed.

Therefore, the floor cleaning truck 1 can stably clean the floor surface having irregularities even when cleaning a floor surface or the like having irregularities, and prolongs the life of the side brush 4. Can be achieved.

[0036]

As described above, according to the present invention, it is possible to stably perform a cleaning operation without leaving unsweeped even on a floor surface having irregularities, and to extend the life of the side brush. It is possible to provide a floor sweeper that can be used.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a structure of an arm and a side brush in the embodiment.

FIG. 2 is a bottom view of the side brush according to the embodiment.

FIGS. 3A and 3B are (a) a flat floor surface and (b) in an embodiment;
Explanatory drawing which shows the grounding state of the side brush in a concave part and (c) convex part.

FIG. 4 is an explanatory view showing an appearance of a floor cleaning truck in the embodiment.

FIG. 5 is an explanatory view showing a partially cut-away cross section of the floor cleaning truck in the embodiment.

FIG. 6 is an explanatory view showing a problem of a side brush in a conventional example.

[Explanation of symbols]

 1. . . 10. Floor sweeper, . . Vehicle, 2. . . 2. dust box, . . Main brush, 4 . . Side brush, 5. . . Arm, 51. . . Axis of rotation, 59. . . Spring, 6. . . Wheel,

Claims (3)

[Claims] A vehicle includes a dust box for collecting dust, a main brush for sweeping dust on a floor surface in the dust box, and a side brush for sweeping and collecting dust in a cleaning area of the main brush. In the floor cleaning truck, the side brush is attached to a tip of an arm arranged so as to be capable of swinging up and down, and the side brush and the floor surface are provided on the ground surface side of the side brush. A floor sweeper, wherein wheels for regulating the height of the floor are arranged so as to be freely rotatable. 2. The floor cleaning vehicle according to claim 1, wherein the wheel provided on the side brush has a turning axis and a rotation axis of the wheel offset from each other. 3. The floor cleaning truck according to claim 1, wherein the arm is provided with a spring for urging the arm toward the floor.