JPH06272221A - Cleaning device in dust box in floor cleaning car - Google Patents

Abstract

PURPOSE:To improve the working efficiency of a box interior cleaning work by providing a scraping plate adapted to slide toward an opening part along a base late in a dust box, thereby removing dust adhering to the base plate without being assisted by another's hand at the time of throwing away the dust in the box. CONSTITUTION:A scraping plate 30 adapted to slide along a base plate 6b by a feed screw 33 rotated by a motor is disposed in a dust box 2 for storing dust swept up by a main brush 11. Subsequently, in the case of throwing away the dust in the dust box 2, the box 2 is rotated centering round a shaft 15 by a cylinder 17 to discharge the dust from an opening part 5. In this case, dust adhering to the base plate 6b is removed by sliding the scraping plate 30 toward the opening part 5 without being assisted by another's hand. Thus, cleaning for the interior of the box can be accomplished with a high efficiency.

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, and more particularly to a cleaning device for cleaning the inside of a dust box of a floor cleaning vehicle.

[0002]

2. Description of the Related Art Conventionally, a floor cleaning vehicle 50 as shown in FIG.
Is proposed. The inside of the dust box 52 mounted on the front side of the vehicle 51 is sucked by a blower (not shown) to a negative pressure state. When the main brush 53 that rotates on the bottom surface of the vehicle 51 is rotated to drive the vehicle 51, the main brush 53 sweeps up the dust J on the floor surface. The dust J is swept into the dust box 52 through the opening 54 of the dust box 52.

Therefore, dust J is accumulated in the dust box 52 as shown by the solid line. Also, dust box 5
When a certain amount of dust J is accumulated in 2, it is necessary to discard the dust J. Therefore, the elevating cylinder 55 is operated to rotate the dust box 52 clockwise about the support shaft 56. Then, as shown in FIG. 7, the opening 54 of the dust box 52 faces downward and the dust box 5
The dust J in 2 is thrown away.

[0004]

However, moist dust J such as soil is collected in the dust box 52 and adheres to and is deposited on the bottom plate 52a of the dust box 52 and the front plate 52b of the dust box 52. When the dust J dries, it adheres to the bottom plate 52a and the front plate 52b in a solid state. Therefore, when the dust J is dumped from the dust box 52, the elevating cylinder 55 is operated so that the opening 54 of the dust box 52 faces downward. However, since the dust J adheres to the bottom plate 52a and the front plate 52b in a solid state, there is a problem that the dust J cannot be dumped. Therefore, the worker must stand below the opening 54 in the dust box 52 and use a work tool such as a shovel to scrape off the dust J adhering to the bottom plate 52a and the front plate 52b, which is not good workability. There's a problem.

The present invention has been made to solve the above problems, and its purpose is to scrape off the dust adhering to the inside of the dust box and discard the dust when the dust box is raised to improve workability. It is an object of the present invention to provide a cleaning device for cleaning a dust box in a floor cleaning vehicle.

[0006]

In order to solve the above-mentioned problems, the invention according to claim 1 rotates at the bottom of a vehicle, and dust on the floor is passed through an opening in a dust box installed in the vehicle. In the floor cleaning vehicle having a main brush to be swept up, a sliding member that slides toward the opening along the bottom plate of the dust box is provided reciprocally in the dust box. To do.

According to a second aspect of the present invention, the sliding member is connected to a feed member provided parallel to the bottom plate, and the driving member for operating the feed member causes the sliding member to reciprocate along the bottom plate. The point is to move.

[0008]

According to the operation of the first aspect of the present invention, a sliding member that slides along the bottom plate of the dust box is reciprocally provided at the position where the dust adheres in the dust box. Therefore, when the sliding member is reciprocally moved, the sliding member slides along the bottom plate toward the opening, so that dust adhering to the bottom plate can be scraped off.

According to the second aspect of the present invention, the feed member is operated by the driving means, and the sliding member slides along the bottom plate in the dust box by the operation of the feed member.
Therefore, the dust adhering to the bottom plate of the dust box is scraped off.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment embodying the present invention will now be described with reference to FIGS.
A description will be given based on FIG. As shown in FIGS. 1 and 2, the floor cleaning vehicle includes a vehicle 1 and a dust box 2 provided in front of the vehicle 1. The dust box 2 is formed into a substantially L-shaped side surface by a rising portion 3 and a collecting portion 4 formed on the lower surface thereof. An opening 5 is formed on a side portion of the collecting portion 4 (on the side of the vehicle 1 in FIG. 1). The collecting unit 4 is composed of a top plate 6a, a bottom plate 6b, and side plates 7a and 7b provided on both sides thereof. Therefore, the opening 5 has a rectangular cross section. Further, a front plate 9 which is inclined diagonally leftward is provided on the front side of the bottom plate 6b via a slanted plate 8.

A dust cover 10 is arranged at the center of the bottom of the vehicle 1 in the width direction of the vehicle 1 (the direction orthogonal to the plane of FIG. 1). The dust cover 10 is formed so as to open on the floor side and the opening 5 side of the dust box 2.

A main brush 11 is rotatably arranged in the dust cover 10. Main brush 1
The dust J on the floor surface is swept up by the rotation of 1, and the dust J is collected in the collecting unit 4 of the dust box 2 through the opening 5. Further, the main brush 11 is connected to an operation lever 12 provided in a driver's seat of the vehicle 1 via a wire and a link mechanism (not shown). By operating the operating lever 12, the link mechanism operates via the wire, and the main brush 11 operates between two positions, that is, the position indicated by the chain double-dashed line and the position indicated by the solid line.

Supporting pieces 13 are formed on both sides of the upper rear surface of the dust box 2 so as to project therefrom. A pair of support members 14 are provided on both upper front sides of the vehicle 1.
The support piece 13 of the dust box 2 is rotatably supported by the support shaft 15 which is inserted and supported by the support shaft 15. Therefore, the dust box 2 is supported rotatably around the support shaft 15.

A pair of connecting pieces 16 are fixed to both sides of the rear surface of the dust box 2, and a piston rod 18 of an electromagnetic telescopic cylinder 17 which is swingably supported by the vehicle 1 is connected to the connecting pieces 16 by pins 19. Has been done. When the piston rod 18 of the telescopic cylinder 17 is extended,
As shown in FIG. 5, the dust box 2 rotates clockwise around the support shaft 15 so that the dust J collected in the dust box 2 can be discharged.
A connecting fitting 20 is fixed to the center of the rear surface of the dust box 2, and a flap cylinder binder 21 is attached to the connecting fitting 20.
Is swingably supported.

A through hole 22 extending in the longitudinal direction of the vehicle 1 is formed in the center of the dust box 2 in the width direction of the upper plate 6a. Further, a fixed shaft 23 is provided at the lower end between the pair of support pieces 13, and a pipe 24 is rotatably inserted and supported on the fixed shaft 23. The dust box 2
A flap plate 25 is disposed near the opening 5 of the collecting unit 4 in the pipe 24, and a connecting metal fitting 26 provided at the center of the base end of the flap plate 25 is connected to the pipe 24 through the through hole 22 of the upper plate 6a.
Is stuck to. Therefore, the flap plate 25 is configured to rotate about the fixed shaft 23 via the connecting fitting 26 and the pipe 24.

A connecting piece 27 formed in the center of the base end upper portion of the flap plate 25 is projected to the outside through the through hole 16 and connected to the piston rod 21a of the flap cylinder 21. When the piston rod 21a of the flap cylinder 21 is extended to the position indicated by the chain double-dashed line,
The flap plate 25 closes the opening 5 of the dust box 2. When the piston rod 21a of the flap cylinder 21 is contracted to the solid line position, the flap plate 25 causes the opening 5 of the dust box 2 to move.
Is open.

As shown in FIGS. 1 and 2, a filter 29 equipped with a shaker motor 28 is disposed on the rising portion 3 of the dust box 2. When a blower (not shown) is driven, the dust box is attracted by its suction force. The dust J is forcibly sucked into the inside of 2. Further, the dust J sucked into the dust box 2 adheres to the filter 29 and is not discharged again to the outside. And
The filter 2 is operated by operating the shaker motor 28.
The dust J adhering to the filter 29 can be collected in the collecting unit 4 by applying vibration to the filter 9.

A scraping plate 30 as a sliding member is arranged in the collecting portion 4 of the dust box 2. Figure 3,
As shown in FIG. 4, the scraping plate 30 includes a front plate contact plate 30 a that contacts the front plate 9 and a swash plate contact plate 30 that contacts the swash plate 8.
It is formed in a side-face V shape from b and. Further, the tip of the swash plate contact plate 30b contacts the bottom plate 4, and a scraping portion 30c is formed.

A pair of guide grooves 31 are formed on the side plates 7a and 7b.
a and 31b are formed in parallel with the bottom plate 6b. A pair of guide pins 32a, 32b provided on both sides of the scraping plate 30 are fitted in the guide grooves 31a, 31b.
Therefore, the guide pins 32a and 32b of the scraping plate 30 move along the pair of guide grooves 31a and 31b, and the swash plate contact plate 3
The scraping portion 30c of 0b slides along the bottom plate 6b.

As shown in FIGS. 1 and 2, a feed screw member 33 as a feed member is arranged near the side plate 7a in the upper part of the guide groove 31a, and the feed screw member 33 is attached and fixed to the outside of the dust box 2. A forward / reverse rotation is performed by the drive motor 34 as the drive means.
The tip of the feed screw member 33 is rotatably supported by a support bracket 35 attached to the side plate 7a.

Front plate contact plate 30 of the scraping plate 30
A connecting plate 36 is connected and fixed to the side plate 7a side at the upper end of a. A female screw hole 37 (see FIGS. 3 and 4) that is screwed into the feed screw member 33 is formed in the connecting plate 36, and the feed screw member 33 is inserted and supported in a screwed state.

When the feed screw member 33 is normally rotated by the driving of the drive motor 34, the connecting plate 36 and the scraping plate 30 are rotated.
Move toward the opening 5 side. At this time,
Scraping part 30 of swash plate contact plate 30b of scraping plate 30
The c is adapted to slide along the bottom plate 6b. On the contrary, when the feed screw member 33 is reversely rotated by the drive motor 34 from the state where the scraping plate 30 is moved to the opening 5 side, the scraping plate 30 is moved to the front plate contact plate 30a side. There is. The scraping plate 30 is always stopped at a position in contact with the front plate 9 and the swash plate 8 of the dust box 2.

The drive motor 34 is also connected to a timer circuit 38 provided in the vehicle 1. A cleaning switch 39 provided on the panel of the driver's seat is connected to the timer circuit 38.

When the cleaning switch 39 is operated, the timer circuit 38 drives the drive motor 34 for a predetermined period of time to rotate the feed screw member 33 in the forward direction and move the scraping plate 30 to the opening 5 side. It has become. After that, the timer circuit 38 controls the drive motor 34 for the same predetermined time as before.
To rotate the feed screw member 33 in the reverse direction. Then, the scraping plate 30 is moved to the front plate 9 and the swash plate 8 side,
When the scraping plate 30 comes into contact with the swash plate 8, the drive motor 34 is stopped.

Next, the operation of the floor cleaning vehicle constructed as described above will be described. First, the blower (not shown) sucks the air in the dust box 2 to a negative pressure state, and the main brush 11 is grounded and rotated on the floor surface. When the vehicle 1 travels forward in this state, the dust J on the floor surface is swept up toward the opening 5 side of the dust box 2 by the main brush 11. Further, since the inside of the dust box 2 is in a negative pressure state, the dust J is guided into the dust box 2, and the dust J is accumulated on the collecting unit 4.

Here, as shown in the chain double-dashed line in FIG. 2, wet dust J such as soil accumulates on the collecting part 4 in the dust box 2 and is dried, and then solidifies on the scraping plate 30 and the bottom plate 6b. Attach with. In order to discard the dust J in this state, the piston rod 18 of the lifting cylinder 17 is extended and the dust box 2 is rotated clockwise. Then, the opening 5 of the dust box 2 faces downward and the dust J in the dust box 2 can be dumped.

However, the dust J such as soil cannot be discarded because it is in a solid state. Then, the operator operates the cleaning switch 38. Then, the timer circuit 38 operates the drive motor 34 for a predetermined time to normally rotate the feed screw member 33. Therefore, the scraping plate 30 moves to the opening 5 side along the guide grooves 31a and 31b. At this time, the scraping portion 30c of the swash plate contact plate 30b of the scraping plate 30 moves to the opening 5 side along the bottom plate 6b.
Therefore, the dust J attached to the bottom plate 6b in a solidified state is scraped off. Therefore, the dust J scraped off is dumped to the outside through the opening 5 of the toast box 2.

On the other hand, the timer circuit 38 includes the drive motor 34.
Are operated for the same predetermined time as above, and the feed screw member 33
Reverse. Therefore, the scraping plate 30 has a guide groove 31.
It moves toward the front plate 9 and the swash plate 8 along a and 31b. Then, when the scraping plate 30 contacts the front plate 9 and the swash plate 8, the drive motor 34 stops. Also, the scraping plate 30
The dust J adhering to the front plate contact plate 30a of the
It is dropped by the vibration caused by the movement of.

Therefore, the dust J such as dirt is stored in the dust box 2.
Even if it adheres to the bottom plate 6b of
Is slid along the bottom plate 6b and adheres to the bottom plate 6b.
Can be reliably scraped. As a result, the dust box 2 can be raised and the dust J in the dust box 2 can be reliably dumped to the outside through the opening 5.

In this embodiment, the dust J is scraped off by the scraping plate 30 by operating the cleaning switch 39 while the dust box 2 is raised. Besides this,
Before raising the dust box 2, the cleaning switch 39 is operated and the scraping plate 30 is operated to scrape off the dust J on the bottom plate 6b. After that, it is possible to raise the dust box 2 to dump the dust J to the outside.

Further, in this embodiment, the cleaning switch 3
The scraping plate 30 is configured to reciprocate in the collecting unit 4 by a single operation of 9. In addition to this, when the cleaning switch 39 is operated, the timer circuit 38 causes the drive motor 3 to operate.
4 is operated for a predetermined time to normally rotate the feed screw member 33, move the scraping plate 30 to the opening 5 side, and stop it. After that, when the cleaning switch 39 is operated again, the timer circuit 38 operates the drive motor 34 for the same predetermined time as described above to reverse the feed screw member 33, and the scraping plate 30 is moved to the front plate 9 and the swash plate 8 side. To move. When the scraping plate 30 contacts the front plate 9 and the swash plate 8,
It is also possible to configure the drive motor 34 to stop.

In this case, if the scraping plate 30 is moved to the opening 5 side and stopped while the dust box 2 is being raised, the dust J that has solidified and adhered to the scraping plate 30.
Can be dropped by a work implement such as a shovel.
Further, since the scraping plate 30 has moved to the opening 5 side, the dust J adhering to the scraping plate 30 can be easily removed.

Further, in this embodiment, the drive motor 34
Of the scraping plate 3 by rotating the feed screw member 33 by driving the
Although 0 is moved, it is also possible to move the scraping plate 30 by a hydraulic cylinder or the like instead of the drive motor 34.

[0034]

As described in detail above, according to the present invention, it is possible to improve the workability by scraping off the dust adhering to the inside of the dust box and discarding the dust when the dust box is raised. There is.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a configuration of a floor cleaning vehicle according to the present invention.

FIG. 2 is a cross-sectional view showing a configuration inside a dust box.

FIG. 3 is a front view of a scraping plate.

FIG. 4 is a side view of the scraping plate.

FIG. 5 is a cross-sectional view showing a state where the scraping plate has moved to the opening side.

FIG. 6 is a side sectional view showing a configuration of a conventional floor cleaning vehicle.

FIG. 7 is a sectional view showing a state in which a dust box is raised.

[Explanation of symbols]

1 ... Vehicle, 2 ... Dust box, 5 ... Opening part, 6b ... Bottom plate, 11 ... Main brush, 30 ... Scraping plate as sliding member, 33 ... Feed screw member as feeding member, 34 ... Driving as driving means Motor, J ... Dust

Claims (2)

[Claims] 1. A floor cleaning vehicle equipped with a main brush that rotates at the bottom of a vehicle and sweeps dust on the floor through a opening into a dust box installed in the vehicle, wherein: in the dust box, A cleaning device for cleaning the inside of a dust box in a floor cleaning vehicle, wherein a sliding member that slides toward the opening along the bottom plate of the dust box is reciprocally provided. 2. The sliding member is connected to a feed member provided parallel to the bottom plate, and the driving member for operating the feed member reciprocates the slide member along the bottom plate. Cleaning device inside the dust box of a floor cleaning car.