JP2005213027A - Refuse collecting vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To further improve the safety of a worker who handles refuse. <P>SOLUTION: This refuse collecting vehicle 1 is provided with a tilting hydraulic cylinder 7 for tilting a refuse storage box 3; a turning hydraulic cylinder 8 for turning a refuse throw-in box 4 relative to the refuse storage box 3; and a loading device 5 for pushing refuse thrown into the refuse throw-in box 4, into the refuse storage box 3. The refuse collecting vehicle 1 is further provided with a sound collecting microphone 104 for recognizing the worker's voice. When the worker's voice is recognized by the sound collecting microphone 104 during operation of at least one of the tilting hydraulic cylinder 7, turning hydraulic cylinder 8 and loading device 5, the device in operation is stopped, and operation contents are announced from a loudspeaker 103 before the operation. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a garbage collection vehicle that loads dust in a dust container by using a loading device, transports it, and discharges it at a garbage collection site or a treatment plant.

  2. Description of the Related Art As a garbage collection vehicle for collecting household garbage and the like, a garbage collection box having a rear opening on a loading platform behind a driver's seat is generally provided. This kind of garbage collection vehicle has a dust input box (tailgate) installed at the rear end of the loading platform so as to communicate with the dust storage box, and the dust input into the dust input box is placed on the side of the dust storage box by the loading device. To be transported to.

  The loading device is housed in a dust box, and the loading device is a rotating plate that transports the dust that has been put into the dust box to the dust storage box side, and the dust that is transported by this rotating plate. Rotating plate type equipped with a push-in plate to be pushed into the dust storage box, a scraping plate that rotates and scrapes the dust put into the dust throwing box, and lifts the dust together with this scraping plate and pushes it into the dust containing box A compression type equipped with a pushing plate is well known.

  The dust box is rotatably connected to the upper rear end of the dust container via a bracket, and is rotated by a rotating hydraulic cylinder that expands and contracts between the dust container and the dust container. As a result, the dust box is pivoted up and down so as to be in contact with and away from the dust container box around the connecting portion with the bracket, and covers the rear opening of the dust container box at the lowest position. Yes.

  The lower rear end of the dust container is connected to the rear end of the cargo bed via a bracket, and is tilted by a tilting hydraulic cylinder that expands and contracts between the cargo bed and the dust container. As a result, the refuse storage box is tilted so as to be in contact with and separated from the cargo bed with the connection portion with the bracket as a center.

  In this garbage collection vehicle, when discharging the dust in the dust container, the rotating hydraulic cylinder is extended, and the dust input box is moved away from the rear opening of the dust container. In this state, when the tilting hydraulic cylinder is extended, the dust container box is inclined rearwardly and the dust in the dust container box is dropped and discharged to the rear of the vehicle.

  A hydraulic driving force is applied to the loading device and each cylinder by a PTO device that extracts engine power. Then, the loading device and each cylinder are actuated / stopped by operation of an operation unit installed in the garbage truck. As a result, the worker can perform dust processing and the like with the garbage truck as a desired operation state.

Thus, since the dust storage box and the dust input box are driven by the loading device and each cylinder, the safety for the worker is ensured by various means. As an improvement in safety, it is known that the loading device is stopped when an entry of the worker's body into the dust box is detected by an infrared sensor provided in the dust box (for example, , See Patent Document 1).
Japanese Utility Model Publication No. 62-133201

  As described above, the garbage truck has a predetermined safety performance, but it is needless to say that the safety performance can be further improved.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a garbage collection vehicle that further improves the safety of workers handling the garbage.

  In order to achieve the above object, according to the first aspect of the present invention, there is provided a dust bin that is provided on the loading platform behind the driver's seat and is tilted and driven by the bin driving device and has an open rear portion, and communicates with the dust bin. A dust input box that is pivotally supported by a rear upper end side of the dust storage box and is rotationally driven by an input box drive device, and a loading device that loads the dust input into the dust input box into the dust storage box A garbage collection vehicle comprising: a voice recognition device for recognizing a human voice, wherein the voice recognition is performed when at least one of the storage box drive device, the input box drive device, and the loading device is operated. When an operator's voice is recognized by the apparatus, a forcible stop control means is provided for stopping an operating apparatus among the storage box drive device, the input box drive device, and the loading device.

  According to the first aspect of the present invention, when a voice is recognized by the voice recognition device, for example, when the worker shouts at the time of dumping work or discharging work, the forced stop control means is operating. The device is forcibly stopped. For example, when an operator releases his eyes or when an operator leaves a garbage truck, another person approaches the garbage throwing box and becomes dangerous. When a hand cannot be reached, the device can be quickly stopped by screaming by a person such as an operator. Thereby, a loading apparatus etc. can be stopped urgently and the safety | security of the operator who processes garbage can be improved.

  In the invention according to claim 2, in the garbage truck according to claim 1, when starting the operation of at least one of the storage box drive device, the input box drive device and the loading device, An announcement means for announcing the operation content is provided.

  According to the second aspect of the present invention, in addition to the operational effects of the first aspect of the invention, when the loading device is operated, the operation content is announced to a person such as an operator. Etc. can reliably recognize the operation of each device. This further improves the safety of workers and the like.

  According to the present invention, the loading device or the like can be stopped urgently when the worker or the like shouts, and the safety of the worker who processes the garbage can be further improved.

  1 to 4 show an embodiment of the present invention. FIG. 1 is a schematic side view of a garbage collection vehicle, FIG. 2 is a schematic block diagram of the garbage collection vehicle, and FIG. 3 is an illustration showing a dust loading operation. FIG. 4 and FIG. 4 are explanatory views showing the dust discharge operation.

  As shown in FIG. 1, the garbage collection vehicle 1 is connected to a cargo bed 2 provided behind the driver's seat, a dust container 3 provided on the cargo bed 2, and a rear portion of the dust container 3. And a dust input box 4. A loading device 5 for loading the charged dust into the dust container 3 is provided inside the dust charging box 4.

  As shown in FIG. 4, the lower rear end of the refuse storage box 3 is connected to the rear end of the cargo bed 2 via a bracket 6, and serves as a storage box drive device that expands and contracts between the cargo bed 2 and the dust storage box 3. It is tilted by the tilting hydraulic cylinder 7. Thereby, the refuse storage box 3 tilts so as to be in contact with and away from the loading platform 2 around the connection portion with the bracket 6.

  Further, as shown in FIG. 4, the dust box 4 is pivotally connected to the upper rear end of the dust container 3, and extends and contracts between the dust container 3 and the dust box 4. It is rotationally driven by a hydraulic cylinder 8 for rotation as a driving device. As a result, the dust input box 4 pivots up and down so as to be in contact with and away from the dust storage box 3 around the connecting portion with the dust storage box 3 (see FIG. 4). The rear opening of the box 3 is covered (see FIG. 1).

  The loading device 5 reciprocates back and forth in the front-rear direction by expansion and contraction of a rotating plate 10 rotated by a hydraulic motor 9, a lifting plate 12 driven to swing by a lifting hydraulic cylinder 11, and a pushing hydraulic cylinder 13. And a pushing plate 14 that moves. That is, the loading device 5 of the present embodiment raises the dust thrown into the dust throwing box 4 to a predetermined position with the rotary plate 10 as shown in FIG. 3A, and as shown in FIG. Further, the dust raised by the rotating plate 10 is further scraped up by the raising plate 12, and then the dust is pushed into the dust containing box 3 by using the pushing plate 14 as shown in FIG. 3 (c). Since this loading device 5 has the same configuration as conventionally known, it will not be described in detail here.

  The controller 100 controls the tilting of the dust container 3, the rotation of the dust container 4, the rotation of the rotating plate 10, the swinging of the scraping plate 12, and the swinging of the pushing plate 14. As shown in FIG. 2, the control device 100 switches the hydraulic pressure supplied to the tilting hydraulic cylinder 7, the rotating hydraulic cylinder 8, the hydraulic motor 9, the scraping hydraulic cylinder 11, and the pushing hydraulic cylinder 13. By controlling the operation of the electromagnetic hydraulic control valves 15, 16, 17, 18, 19, the dust container 3 is tilted, the dust throwing box 4 is rotated, the rotating plate 11 is rotated, and the scraping plate 12 is moved. The pushing plate 13 is swung by swinging. The hydraulic pressures of the hydraulic cylinders 7, 8, 11, 13 and the hydraulic motor 9 are supplied by a PTO device 102 that extracts the power of the engine 101 of the garbage truck 1.

  As shown in FIG. 1, the garbage truck 1 is provided with a speaker 103 and a sound collection microphone 104 connected to the control device 100 at the rear part of the loading platform 2. The speaker 103 informs a person of predetermined information by voice according to a command from the control device 100. In addition, the sound collecting microphone 104 as a voice recognition device transmits information related to a voice uttered by an operator or another person to the control device 100.

  Further, as shown in FIG. 2, a lamp 105, an alarm buzzer 106, and the like are connected to the control device 100. The lamp 105 and the alarm buzzer 106 are the same as those conventionally known. That is, the lamp 105 is, for example, an operation lamp that displays the operation of the loading device 5. The alarm buzzer 106 emits a confirmation sound when, for example, the dust input box 4 is tilted to discharge the dust from the dust container 3.

  Further, the control device 100 includes a changeover switch S1 for selecting a dust loading operation and a dust discharging operation, a start switch S2 for the loading device 5, a stop switch S3 for stopping the operation of the loading device 5, and a dust box. 4 is connected to an open / close switch S4 that rotates 4 and a dump switch S5 that tilts the refuse storage box 3. Each of the switches S1 to S5 is appropriately installed at a place where the operator can perform a pressing operation.

  Furthermore, the control device 100 includes a limit switch L1 for the rotating plate that detects the position of the rotating plate 11, a limit switch L2 for the pressing plate that detects the position of the pressing plate 13, and a dust box 4 with respect to the dust containing box 3. Limit switch L3 for a dust box for detecting that the container is tilted more than a certain angle, limit switch L4 for the dust container for detecting that the dust container 3 is tilted on the loading platform 2, etc. It is connected to the.

  Operation signals and detection signals from the switches S1 to S5 and the limit switches L1 to L4 are input to the control device 100, and the control device 100 operates the tilting hydraulic cylinder and the operation of the loading device 5 based on these input signals. 7 and the operation of the rotating hydraulic cylinder 8 are controlled. The control device 100 includes a CPU 110 as a calculation unit, a ROM 111 and a RAM 112 as storage units, and the like. The ROM 111 stores a loading control program 120 that performs a dust loading operation and a discharge control program 121 that performs a dust discharging operation. Further, in the ROM 111, the operator's voice is collected by the sound collecting microphone 104 when any one of the tilting hydraulic cylinder 7, the rotating hydraulic cylinder 8 and the loading device 5 is operated according to the loading control program 120 or the discharging control program 121. Is recognized, the forced stop control program 122 for stopping the operating one is stored. In this embodiment, for example, this function detects only the sound of a human voice frequency band (for example, about 20 Hz to about 20 kHz), and stops the operation when a sound pressure exceeding a predetermined value is detected. It has become.

  The ROM 111 stores loading announcement data 123, discharge announcement data 124, and the like. The loading announcement data 123 is audio data regarding the operation content of the loading device 5. The discharge announcement data 124 is audio data regarding the operation contents of the tilting hydraulic cylinder 7 and the rotating hydraulic cylinder 8.

In this embodiment, when the loading operation is started by the loading control program 120, the control device 100 announces loading work contents from the speaker 103 using the loading announcement data 123. Similarly, when the discharge operation is started by the discharge control program 121, the control device 100 announces the discharge work content from the speaker 103 using the discharge announcement data 124. That is, in the present embodiment, the control device 100 serves as announcement means.
Note that it is also possible to record the voice to be announced by using the speaker 103 having a voice recording function, and switch the announcement according to the signal transmitted from the control device 100 and broadcast it.

  As described above, according to the garbage collection vehicle 1 of the present embodiment, when a worker's voice is recognized by the sound collection microphone 104, for example, when the worker screams or the like during the dust loading work or the discharge work, the forced stop is performed. The operating device is forcibly stopped by the control program 122. For example, when the worker takes his eyes off or when the worker leaves the garbage truck, another person approaches the garbage throwing box 3 and becomes dangerous. When the hand cannot be reached in S3, the hydraulic device can be quickly stopped by screaming by a person such as an operator. Thereby, the loading device 5, the tilting hydraulic cylinder 7 and the rotating hydraulic cylinder 8 can be stopped urgently, and the safety of the worker who processes the dust can be improved.

  Further, when the loading device 5, the tilting hydraulic cylinder 7 and the rotating hydraulic cylinder 8 are operated, the operation content is announced to the operator, so that the operator can surely recognize the operation of the hydraulic device. . Thereby, the safety of the worker is further improved.

  Although the so-called rotary plate type is shown as the loading device 5 in the above-described embodiment, for example, a so-called compression type may be used.

  In the above embodiment, the speaker 103 and the sound collecting microphone 104 are shown installed at the rear part of the loading platform 2. However, these may of course be provided in the driver's seat, for example.

  Moreover, in the said embodiment, the forced stop control program 122 is not only when the voice of an operator is recognized with the sound collection microphone 104 but to the operator's garbage input box 4 with an infrared sensor etc. provided separately, for example. Also, when the entry of is detected, the operation of the loading device 5 and the cylinders 7 and 8 may be stopped. As described above, the safety of the worker is drastically improved by providing the safety device several times.

  Moreover, in the said embodiment, when any of the loading apparatus 5, the hydraulic cylinder 7 for tilting, and the hydraulic cylinder 8 for rotation is operate | moving, what was operating is shown forcibly stopping. However, what is necessary is just to perform forced stop control for at least one of the loading device 5, the tilting hydraulic cylinder 7 and the rotating hydraulic cylinder 8, and other specific details can be changed as appropriate. Of course there is.

It is a schematic side view of the refuse collection vehicle which shows one Embodiment of this invention. It is a schematic block diagram of a garbage truck. It is explanatory drawing which shows a dust loading operation | work, Comprising: (a) is related with the operation | movement which raises a dust with a rotating plate, (b) is related with the operation which lifts up a dust with a raising plate, (c) is a dust with a pushing plate. It relates to the operation of pushing into the garbage storage box. It is explanatory drawing which shows a dust discharge operation | work.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Dust collection truck 2 Loading platform 3 Dust storage box 4 Dust input box 5 Loading device 7 Tilt hydraulic cylinder 8 Rotating hydraulic cylinder 9 Hydraulic motor 11 Lifting hydraulic cylinder 13 Pushing hydraulic cylinder 100 Controller 103 Speaker 104 Sound collection Microphone 110 CPU
111 ROM
112 RAM
120 Loading Control Program 121 Discharge Control Program 122 Forced Stop Control Program 123 Loading Announcement Data 124 Discharge Announcement Data

Claims (2)

A dust storage box provided on the loading platform behind the driver's seat, tilted by the storage box drive device, and opened at the rear,
A dust container box that communicates with the dust container box, is pivotally supported on the rear upper end side of the dust container box, and is rotated by an input box drive device;
A dust collecting vehicle comprising: a loading device that loads the dust thrown into the dust throwing box into the dust storage box;
A voice recognition device for recognizing a worker's voice;
When a voice of a person is recognized by the voice recognition device during operation of at least one of the storage box drive device, the input box drive device, and the loading device, the storage box drive device, the input box drive device, and the A garbage collection vehicle comprising forcible stop control means for stopping a working device of the loading device.   The announcement means which announces the contents of operation to a person when starting the operation of at least one of the storage box drive device, the input box drive device, and the loading device is provided. The listed garbage truck.

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