JPH0715164B2 - Cleaning car with dust detection device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a cleaning vehicle with a dust amount detecting device, which is provided with a display device for detecting the dust amount and notifying the operator of the dust amount.

[Prior art]

Conventionally, as a traveling cleaning vehicle, for example, one shown in FIG. 7 is known.

That is, the conventional cleaning vehicle has a brush 21, a main brush 22, a dust box 23, a blower 24, a filter 25, and a dust pan 26.
And consists of.

The brush 21 and the main brush 22 are rotated by the motor driving device 211. The brush 21 is for loosening dust 30 such as dust, paper dust, pebbles, and dust so that it can be easily removed. Further, the main brush 22 sweeps the dust 30 on the floor or the road surface into the dust box 23. Then, the dust is temporarily stored in the dust box 23.

The blower 24 sucks the air containing the dust 31 from the dust box 23 and sends the air to the filter 25.
Then, the filter 25 filters the air containing dust on the surface of the cloth filter 251. Further, the dust adhering to the surface of the filter 251 swings the dust on the surface of the cloth filter 251 by the rotational vibration of the shaker 27, and is shaken off to the dust pan 26 arranged below the dust pan. Also, the dust pan 26
A container having a shape such as a substantially rectangular cube or a flat cylindrical body for storing a fixed amount of the dust that has been shaken off. If the dust pan is full of dust, remove it from the cleaning car and discard the dust in it. The dust pan 26 is generally a frame 291 to which the filter 25 and casters 29 are attached.
It is arranged between and. The cleaning vehicle body 20 is equipped with a handle 28 for controlling the traveling direction of the vehicle body.

〔Problems to be solved〕

However, even if the dust pan 26 is filled with dust, the conventional cleaning vehicle 2 is not provided with a means by which the operator (worker) can know the full state. Therefore, the dust pan 26 becomes too heavy and it is inconvenient to throw away the dust.

The present invention has been made in view of the problems of the conventional cleaning vehicle, and as soon as the dust pan becomes full of dust, the operator can immediately know the situation through the display device.
It is intended to provide a cleaning vehicle with a dust amount detecting device.

[Means for solving problems]

The present invention relates to a brush that is rotated by a drive device such as a motor, a dust box for storing dust that is wound up by the rotation of the brush, a blower that sucks air containing dust from the dust box, and an air sucked by the blower. A cleaning vehicle comprising a filter for filtering dust and a dust pan under the filter for accumulating dust. The dust pan is provided with a tray below the dust pan that moves up and down according to the amount of dust. A cleaning vehicle with a dust amount detecting device, characterized in that a detecting device for detecting the position of the tray is provided, and a display device for displaying a signal from the detecting device is electrically connected to the detecting device.

The detection device includes a proximity switch, a proximity sensor,
It is preferably one of the limit switches.

As a result, when the dust pan is full of dust, the position of the tray is lowered, and the detection device detects this and sends a signal to the display device.

The proximity switch outputs an output signal when an object approaches within a certain distance and can detect the object in a non-contact state. Specific examples thereof include various types for metal detection, plastic detection, wood detection, and the like. Further, depending on the operation principle, various types such as an induction type, an electrostatic capacitance type, and a reed switch type can be appropriately selected and used according to the material of the dust pan.

The proximity sensor is also called a proximity distance sensor and is a sensor that detects a distance to an object in the non-contact state, in the present invention, the tray of the dust pan. And
Examples of this are eddy current type, capacitance type, optical type,
Various types such as ultrasonic type can be used.

The limit switch is a small switch that opens and closes electrical contacts by mechanical contact. Specific examples thereof include various types such as a roller lever type, a roller plunger type, and a bevel plunger type.

The detection device may be provided at a position where the position of the tray provided in the dust pan can be detected, but it is preferably provided near the lower side of the tray. Thus, when a large amount of dust is stored on the tray in the dust pan, the detecting device can detect the descending state of the tray.

Further, the detection device is electrically connected to the display device.
Examples of the display device include a lamp and a buzzer. Thus, the detection device detects that a large amount of dust has accumulated on the tray, and the display device notifies the operator. That is, this allows the operator to visually or audibly know that the dust pan is full of dust. The lamp and buzzer can be used together. As a result, the worker can surely know the dust full condition.

[Action and effect]

The cleaning vehicle with a dust amount detecting device according to the present invention detects that the amount of dust becomes large (full) by the tray provided in the dust pan, the dust, and the detecting device, and transmits the detection result by an electric signal. Then, this is displayed on the display device.

In the display device, the lamp is turned on and the buzzer sounds, and the operator is informed that the dust amount in the dust pan is full. The worker stops the cleaning work here, takes out the dust pan to the outside, and discards the dust.

Therefore, according to the present invention, the operator of the cleaning vehicle can quickly and easily know the situation where the dust pan is full of dust. As a result, in the cleaning vehicle of the present invention, the amount of dust in the dust pan does not become too large and it is not difficult to take out the dust pan to the outside.

〔Example〕

First Embodiment A cleaning vehicle with a dust amount detecting device according to this embodiment will be described with reference to FIGS. 1 to 4.

The cleaning vehicle according to this example has a brush 21 as shown in FIG.
And a main brush 22, a dust box 23, a blower 24, a filter 25, and a dust pan 1. Since the parts other than the dust pan 1 are the same as those described in the section of the prior art, the dust pan 1 will be mainly described below. As shown in FIG. 2, the dust pan 1 includes a frame body 10, a tray 12, a spring 16, and a shaft 11 provided below the central portion of the tray 12. The tray 12 is a plate-like body that covers most of the plane of the frame 10 while leaving the lower part of the frame 10 a little. An elastic lip is provided on the peripheral edge of the tray 12.
Attach 121. As a result, the peripheral edge of the tray 12 is sealed with the inner wall surface 102 of the frame body 10, and the dust 31 does not fall below the tray 12. A boss 14 is attached to the lower end of the peripheral edge of the shaft 11 with a sealing material 13 interposed. Also, the above tray
Springs 16 are attached to the lower ends of 12 between the floor plates 101 so that the tray 12 can move in the vertical direction. As a result, even if the dust 31 is unevenly distributed on the tray 12, the tray 12 can be kept in a horizontal balance.

The spring 16 is locked to the bottom plate 101 of the frame body 10 by a bolt 161 and a nut 162.

In addition, a cylindrical shaft is provided at the lower center of the tray 12.
Provide 11 A lower portion of the shaft 11 penetrates a floor plate 101 of the frame body 10, and a peripheral edge of the shaft 11 is provided with a seal material 13 between a boss 14 provided on the floor plate 101.

The dust pan 1 thus configured is attached to the lower part of the filter 25. As this attachment method,
The frame 10 is detachable so that it can be put in and out, for example, like a drawer.

Further, a proximity switch 15 as a detection device is provided at a position substantially below the shaft 11 of the dust pan 1 and a caster 17 is provided.
It is arranged on the frame 171 for mounting. Further, the switch 15 is, as shown in FIG.
The distance between the proximity sensor 152 provided above the head and the upper end of the shaft 11, that is, the lower end surface 125 of the tray 12 is the return distance.
Mount so that L ₁ and proximity distance L ₂ are maintained. Here, the return distance means the above gap when there is no dust on the tray, and the close distance means the above gap when dust 31 is almost full on the tray.

A lead wire 18 is connected to the proximity switch 15. The lead wire 18 is, as shown in FIGS. 1 and 4, a lamp 191 as a display device and a power source (battery).
4 electrically connected.

As the proximity switch, a sensor that detects a proximity distance to an object in a non-contact manner, that is, a photo switch using a photodiode that detects a light amount is used.

What should be noted here is that the cleaning vehicle according to the present invention gradually lowers the shaft 11 in the downward C direction when the dust 31 is accumulated in the dust pan 1 as shown in FIG. . That is, when the distance between the proximity sensor 152 provided above the main body 151 of the proximity switch 15 and the lower end surface 125 of the tray 12 becomes the proximity distance L ₂ , the switch 15 outputs a detection signal and the lower end surface 125 of the tray 12 is detected. Is to detect the full state of the dust amount in the dust pan 1 in the non-contact state. On the other hand, when the dust 31 in the dust pan 1 is discarded outside and emptied, the lower end surface 125 of the tray 12 and the proximity sensor 152 are discharged.
The gap between and is to return to the return distance L ₁ .

Since the cleaning vehicle of this example is configured as described above, when the dust pan 1 becomes full of dust 31, the proximity sensor
The gap between 152 and the lower end surface 125 of the tray 12 is the close distance L ₂ . Therefore, the proximity switch 15 outputs an output signal, and this signal is transmitted to the lamp 191 and lit.

As a result, the operator can set the dust pan 1 to dust 31
You can quickly and easily know when it is full.

Therefore, according to the present invention, the dust pan 1 does not become too heavy and it is not inconvenient to dispose of the dust 31.

Second Embodiment A cleaning vehicle according to this embodiment will be described with reference to FIGS. 5 and 6.

That is, the cleaning vehicle 1 of the present example is provided with a limit switch instead of the proximity switch 15 as the detection device in the first embodiment, and also has a lamp 191 and a buzzer 192. Others are the same as those in the first embodiment.

That is, in this example, as shown in FIG. 5, the bracket 55 is suspended on the bottom plate 101 of the frame 10. Then, the bracket 52 is provided with a limit switch 5 having a roller 51 and a lever 52 as a detecting device. The roller 51 is
It is arranged near the tip 112 of the shaft 11.

When the dust pan 1 becomes full of dust 31, the tip 112 descends downward C, and the roller 51 of the limit switch 5 is moved.
To contact. At this time, the contact of the switch 5 is closed, and the output signal of the switch 5 is the lamp 19 as shown in FIG.
Propagate to 1 and buzzer 192. The lead wire 18 has a plug 6 so that it can be attached and detached by pulling out the dust pan 1.

Since the cleaning vehicle 1 of this example is configured as described above,
In addition to the effects of the first embodiment, the limit switch 5 keeps a constant gap between the tip 11 of the shaft 11 and the caster 17 and the frame 171 even if the cleaning vehicle swings due to road surface irregularities. be able to.

In addition, even in an outdoor environment where it is difficult for the worker to see the lighting of the lamp due to the sun irradiation at midday, the buzzer sounds and the worker can know that the dust 31 in the dust pan 1 is full.

[Brief description of drawings]

1 to 5 show a cleaning vehicle with a dust amount detecting device according to a first embodiment of the present invention. FIG. 1 is a partially cutaway side view thereof, FIG. 2 is a side sectional view of a dust pan, and FIG. FIG. 3 is an explanatory view of the positional relationship between the switch and the shaft, FIG. 4 is an explanatory view showing the electrical connection state of the switch and the lamp, FIGS. 5 and 6 show the second embodiment, and FIG. FIG. 6 is a side sectional view of the dust pan, FIG. 6 is an explanatory view of the electrical connection state similar to FIG. 4, and FIG. 7 is a partially cutaway side view of a conventional cleaning vehicle. 1 ... Dust pan, 11 ... Shaft, 12 ... Tray, 15 ...
… Switch, 171 …… Frame, 191 …… Lamp, 192 …… Buzzer, 2 …… Sweeper, 22 …… Main brush, 23 …… Dust box, 24 …… Blower, 25 …… Filter, 26 …… Conventional Dust pan, 30 ... dust, 31 ... dust, 4 ... power supply, 5 ... limit switch,

Claims (1)

[Claims] 1. A brush that is rotated by a drive device such as a motor, a dust box for storing dust that is wound up by the rotation of the brush, a blower that sucks air containing dust from the dust box, and a blower that is sucked by the blower. A cleaning vehicle comprising a filter for filtering air and a dust pan under the filter for accumulating dust. The dust pan is provided with a tray below the dust pan that moves up and down according to the amount of dust. A cleaning vehicle with a dust amount detecting device, comprising a detecting device for detecting the position of the tray, and a display device for displaying a signal from the detecting device is electrically connected to the detecting device.