JPH05331815A - Brush type cleaning vehicle - Google Patents

Abstract

PURPOSE:To enable dirt at the corner angle section of a building or around a column in a lane to be easily swept to the center section by a side brush. CONSTITUTION:A first bracket 14 is anchored to the forward section underneath a car body 1, two hydraulic cylinders 15 and 16 are rotatably attached in parallel to the first bracket 14, the tip ends of their piston rods 15a and 16a are rotatably attached to a second bracket 17 respectively, so that a parallel link mechanism is made up of the first bracket 14, both the hydraulic cylinders 15 and 16, and the second bracket 17. A side brush 19 directly connected to a hydraulic motor 18 is anchored to the lower section of the second bracket 17, so that the side brush 19 is moved back and forth with the hydraulic cylinders 15 and 16 driven. Paired brackets 21 are erected over the upper surface of the car body 1, and a pulley 22 is rotatably attached to the bracket 21, so that a wire 23 is installed between the upper end of the second bracket 17 and each hydraulic cylinder via the pulley 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a brush type cleaning vehicle mainly used for cleaning the premises.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, a brush type cleaning vehicle for cleaning a road surface such as a factory floor surface or a road surface is driven by a pair of motors 2a on the left and right of a lower rear portion of a vehicle body 1 and respectively. And a driven wheel 3 provided at the center of the front part, a main brush 10 in the middle between the driven wheel 2 and the driven wheel 3, and a side brush 19 on the left side of the lower front part of the vehicle body 1, respectively. The respective motors 2a are provided to control the rotational speeds of the left and right drive wheels 2 so that the motor 2a can travel straight or turn left and right.

[0003]

As described above, in the conventional brush type cleaning vehicle, the drive wheels 2 are provided on the left and right sides of the rear portion of the vehicle body 1, and the driven wheels 3 are provided at the center of the front portion of the vehicle body 1. Since the side brush 19 is substantially fixed to the side portion of the lower front part of the vehicle body 1 in the front-rear direction, when cleaning the side edge of a small cylinder or the like, the side brush 19 is moved close to the side edge. Since it is difficult to drive while driving, there was a drawback that there was a spot left uncleaned near the pillar. In order to eliminate the drawback, as shown in FIG. 7, the side brush 19 may be provided behind the front end of the vehicle body 1, but in this case, the corner of the building is cleaned when cleaning the premises. Dust cannot be swept up to the center of the vehicle body, and therefore cannot be collected in the hopper (not shown) by the main brush 10, and there is a drawback that a large unswept portion P is generated at a corner portion.

Therefore, an object of the present invention is to provide a brush type cleaning vehicle in which dust on corners of a building and cylinders having a small diameter can be easily swept out by a side brush, and those parts can be cleaned without being left behind. Especially.

[0005]

In order to solve the above problems, a brush type cleaning vehicle according to the present invention is a brush type cleaning vehicle in which dust swept up by rotation of a side brush is collected in a hopper by a sweeping brush. In the vehicle, the side brush is provided at the lowermost front portion of the vehicle body so that the hairs of the side brush project laterally of the frame, and the side brush is provided so as to be movable in the substantially front-back direction of the vehicle body.

[0006]

[Function] The bristle of the side brush is projected from the front end of the frame and pressed against the innermost front wall surface of the corner, and when the vehicle body is spin-turned in that state, the side brush collects dust from the front wall toward the center. Since the dust is completely swept up to the section, these dusts are collected in the hopper by the sweeping brush, and there is no sweeping residue left at the corners. Also, when cleaning the side of a small cylinder or the like, if the side brush is moved from the front to the rear, the side brush approaches the drive wheel and the turning radius of the vehicle becomes small, so the diameter of the cylinder is small. Even if it is small, the body can be swiveled while pressing the side brush against the small cylinder, and dust on the cylinder can be easily swept to the central portion, and there is no sweep left on the pillar.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a brush type cleaning vehicle according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a side view of a brush type cleaning vehicle with a part cut away as a first embodiment.
Is a vehicle body, 2 is a drive wheel provided on both sides of the vehicle body 1 and driven by a motor 2a, 3 is a front wheel including casters,
Reference numeral 4 is a traveling handle, 5 is a forward lever, and these are constructed by a known technique. The two drive wheels 2 are provided in the vicinity of the rearmost part of the vehicle body 1, and the number of rotations can be independently controlled by the respective motors 2a, so that the turning center of the vehicle body 1 is on the line connecting the two drive wheels 2 or an extension thereof. You can choose
The direction of the cleaning vehicle can be appropriately changed by changing the number of rotations of both drive wheels 2. Further, by rotating one drive wheel 2 in the normal direction and rotating the other drive wheel 2 in the reverse direction, it is possible to perform a spin turn about the center point P of the line connecting both drive wheels 2. 6 is a dust sweeping chamber provided in the lower portion of the vehicle body 1, 7 is a dust collecting chamber provided in the rear portion of the vehicle body 1, both of which are communicated by an opening 8. Reference numeral 9 denotes a hopper that constitutes a lower portion of the dust collection chamber 7, and is provided integrally with or detachably from the vehicle body 1 as is well known.

Reference numeral 10 denotes a main brush as a well-known sweeping brush which is arranged in the dust sweeping chamber 6 so as to be movable up and down. The main brush 10 has a flip-up paddle 11 at the front thereof. When the brush 10 is lowered onto the road surface, it is rotated in the direction of the arrow by a drive mechanism (not shown), and when the main brush 10 is lifted from the road surface F, the rotation is stopped. By the rotation of the main brush 10, the dust a swept up by the side brush 22 to be described later is swept up to the flip-up paddle 11, and the dust a is swept up by the flip-up paddle 11. It is recovered by the hopper 9 through the. 12 is a well-known filter, and 13 is also a blower.

A side brush operating mechanism is constructed as follows in the front portion below the vehicle body 1. That is, as shown in FIG. 1, FIG. 2 and FIG. 3, the first bracket 14 is fixed to the front part under the vehicle body 1, and the two hydraulic cylinders 15 and 16 are mounted on the first bracket 14 in parallel with each other. And the piston rod 15 of both hydraulic cylinders 15 and 16
The tips of a and 16a are axially attached to the second bracket 17, and the first bracket 14 and the hydraulic cylinders 15 and 1
6 and the second bracket 17 form a parallel link mechanism.

A side brush 19 directly connected to the hydraulic motor 18 is fixed to the lower portion of the second bracket 17, and the side brush 19 is fluffed when the piston rods 15a and 16a of the hydraulic cylinders 15 and 16 project. When the piston rods 15a and 16a are retracted, the main brush 1
It is provided so that the position is close to zero. A pair of brackets 21 are erected on the upper surface of the vehicle body 1, and a pulley 22 is pivotally mounted on the brackets 21.
A wire 23 is stretched from an upper end portion of 7 through a pulley 22 to a hydraulic cylinder (not shown).

In the side brush actuating mechanism constructed as described above, when a hydraulic cylinder (not shown) is driven to pull the wire 23, the side brush 19 rises to separate from the road surface F, and when the wire 23 is loosened, Brush 19
When the piston rods 15a and 16a of the two hydraulic cylinders 15 and 16 are always expanded and contracted by the same stroke, the tilt angle θ of the side brush 19 is increased by the action of the parallel link mechanism described above. Without changing,
The side brush 19 linearly moves in the front-rear direction. In this way, since the side brush 19 moves in the front-back direction,
The side brush 19 and the front wheel 3 do not interfere with each other, and the side brush 19 can be brought close to the main brush 10 or can be largely projected to the front of the frame 20.

In order to clean a wall or the like with the above brush type cleaning vehicle, the side brush 19 is rotated by the operation of the hydraulic motor 18 while the hydraulic cylinder (not shown) is driven to loosen the wire 23 and lower the side brush 19. The side brush 19 sweeps the dust on the wall toward the center and collects it in the hopper 9 by the main brush 10. In this case, the side brush 19
Since the bristle feet 19a of the above project to the front and side of the front frame 20, they can be pressed against the wall and swept to the center without dust left on the wall.

When cleaning the corner portion, the side brush 19 is projected from the front end of the front frame 20 and the bristle foot 19a is pressed against the corner portion, and the center point P shown in FIG.
When the cleaning car is spun in the direction of, the side brush 19 sweeps away dust from the corner from the wall in front of the vehicle body 1 to the center, so that the main brush 10 can collect the dust in the hopper 9. At this time, the tip corner of the vehicle body 1 draws a locus of B, and the rearmost corner of the car body 1 draws a locus of C, neither of which interferes with the wall surface. Therefore, it is possible to clean easily and cleanly without leaving dust on the corners.

Further, in the cleaning vehicle of this embodiment, if the side brush 19 is moved rearward, the distance between the side brush 19 and the turning center set on the line connecting the drive wheels 2 or the extension thereof is set. Since it becomes extremely small, it becomes possible to travel with a smaller turning radius. As shown in FIG. 5, when the side brush 19 is fixed to the forefront part of the vehicle body 1, the locus D is drawn at the minimum turning radius, while the side brush 19 is drawn. At the minimum turning radius when the brush 19 is moved rearward, when the brush 19 has a small diameter E
Since it is a locus along, the dust on the small diameter cylinder can be swept to the center without being left behind, and the vicinity of the cylinder E can be cleaned cleanly.

FIG. 6 is a second view of the brush type cleaning vehicle according to the present invention.
The structure and operation other than the side brush actuating mechanism are the same as those of the first embodiment. Therefore, the same components and parts are designated by the same reference numerals, and the description thereof will be omitted. Explaining the operation mechanism of the side brush of this embodiment, a bracket 30 having a U-shaped cross section is provided on the right side below the vehicle body 1.
The rotation support pin 31 is pivotally supported on both side plates of the bracket 30, and the arm 32 is pivotally attached to the center of the rotation support pin 31 by the rotation support pin 33. A side brush 19 directly connected to the hydraulic motor 18 is fixed to the tip of the arm 32, and the side brush 19 is provided at a position where its bristle feet 19a protrude forward and sideward of the front frame 20.

A bracket 32a is fixed to the side surface of the arm 32, a bracket 33 is provided on the right front part of the vehicle body 1, and a hydraulic cylinder 34 is attached to the bracket 33.
Further, piston rods 34a are axially attached to the brackets 32a, respectively. When the piston rod 34a of the hydraulic cylinder 34 is expanded and contracted, the side brush 19 moves in the front-rear direction in a gentle arc as shown by the locus A. Therefore, similarly to the first embodiment, the side brush 19
Can interfere with the front wheels 3 and bring the side brushes 19 closer to the main brushes 10 or projecting forward of the frame 20.

Further, a hook 32b is fixed to the upper surface near the center of the arm 32, and the hook 32b has a hook 32b.
A wire (not shown) is wound around and the tip of the wire is bound to a hydraulic cylinder (not shown). The arm 32 is lifted by the operation of the hydraulic cylinder to lift up the side brush 19. ..

The operating mechanism of the side brushes of the first and second embodiments described above is merely an example, and the present invention is not limited to these. The detailed configuration and the shape of parts are as follows.
The present invention can be appropriately modified and embodied without departing from the object and spirit of the present invention.

[0019]

As described in detail above, according to the present invention,
The side brush is provided at the bottom front of the vehicle body so that its bristle partly protrudes to the side of the frame, and the side brush is provided so as to be movable in the approximately front-back direction of the vehicle body. When moving and projecting from the front end of the frame, you can spin turn the cleaning car while pressing the side brush against the corner,
The dust near the corners can be swept toward the center without sweeping away, and the corners can be cleaned easily and cleanly. Further, when the side brushes are moved rearward, the side brushes can travel with a smaller turning radius, so that the dust around the small diameter cylinder can be cleaned without being swept.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of a first embodiment of the present invention.

FIG. 2 is a schematic side view of a main part of FIG.

FIG. 3 is an explanatory diagram showing a moving state of the side brush of the first embodiment.

FIG. 4 is an explanatory diagram showing a cleaning state of a corner portion according to the first embodiment.

FIG. 5 is an explanatory view showing a cleaning state near the pillar according to the first embodiment.

FIG. 6 is a schematic plan view of a second embodiment of the present invention.

FIG. 7 is an explanatory diagram showing a cleaning state of a conventional cleaning vehicle.

[Explanation of symbols]

1 ... Car body, 9 ... Hopper, 10 ... Main brush,
・ ・ ・ Side brush, 19a ・ ・ Bristles, 20 ・ ・ Frame.

Claims (1)

[Claims] 1. A brush type cleaning vehicle in which dust swept up by the rotation of a side brush is swept up and collected in a hopper by a brush, and the side brush has a bristle protruding toward the side of the frame. The brush-type cleaning vehicle is characterized in that the side brush is provided on the vehicle and is movable in the front-back direction of the vehicle body.