JPH09183501A - Garbage collector with elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a third emergency stop device which puts a garbage loading device and an elevating device to individual emergency stop, using a single, third emergency stop layer, and thereby actuate the third emergency stop device certainly at the time of emergency stop and allow the third lever to serve for both purposes. SOLUTION: A third emergency stop device 51 puts emerge a garbage loading device and an elevating device to individual emergency stop. The third device 51 is equipped with a third emergency stop lever 60 supported at the bottom of a dust cast-in box in such a way as swingable over and ahead of the car body, the first and the third limit switch 72 to sense that the lever 60 is swung to the up-position, the second limit switch 75 to sense that the leve is swung to the up-position and ahead of the car body, and a stopping means which receives signals from the limit switches, stops the operations of the garbage loading device and the elevating device when the lever 60 is swung to the up- position, and stops the operation of the garbage loading device when swung ahead of the car body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refuse collecting vehicle with a lifting device provided with an elevating device for facilitating the loading of the refuse thrown in through the throwing-in port of the refuse throwing box into the refuse storing box.

[0002]

2. Description of the Related Art Generally, in a garbage collection vehicle, as disclosed in, for example, Japanese Utility Model Laid-Open No. 129309/1990, a garbage storage box having a garbage loading port on its rear wall is mounted on a chassis, and A dust dumping box is continuously provided at the dust dumping port of the dust dumping box, and inside the dust dumping bin, the dust dumped at the bottom from the dust dumping bin's loading port is passed through the dust dumping port. A dust loading device for loading the dust storage box is housed. And, at the lower end of the dust throwing box, an emergency stop device for making an emergency stop of the dust loading device when a part of the worker's body is caught in the dust loading device at the time of loading the dust The emergency stop device is provided with a bar-shaped operation means extending in the vehicle width direction, which is swingably provided in the vehicle front-rear direction about a shaft extending in the vehicle width direction below the loading opening, and the operation means. A detection means for detecting the swing of the means toward the front of the vehicle body, and a stop means for receiving the output of the detection means and stopping the operation of the dust loading apparatus when the operation means swings forward of the vehicle body. It becomes.

On the other hand, in a vehicle in which a container having a tailgate is mounted on the chassis, at the rear end of the container, there is a loading position where the luggage can be loaded into the container via the tailgate and the ground. An elevating device with a cradle that moves up and down between them is provided, and when a heavy load is placed on the cradle and raised to the loading position, a part of the luggage on the cradle or the worker's An emergency stop device is provided to detect that feet or the like are protruding to the lower end side (front side of the vehicle body) of the container and to make an emergency stop of the lifting operation of the lifting device (see Japanese Utility Model Publication No. 52-42493). This emergency stop device includes bar-shaped operation means extending in the vehicle width direction, which is swingably supported in the vertical direction at the lower end of the container, and detection means for detecting that the operation means has swung upward. And a stop means for receiving a signal from the detecting means and stopping the operation of the lifting device when the operating means swings upward.

[0004]

By the way, when collecting dust such as bulky refuse with a dust truck, since this bulky dust is bulky and heavy, the dust (bulky dust) is thrown into the inlet. There is a demand to equip the garbage truck with an elevating device with a load cradle that elevates and lowers between possible loading positions and the ground.

However, when the dust is placed on the cradle by the elevating device and lifted, a part of the trash on the cradle or the foot of the worker is projected to the lower end side (front side of the vehicle body) of the charging port. Since the protruding portion may be caught between the lower end portion of the dust throwing box, it is necessary to separately provide an emergency stop device below the lower end portion of the dust throwing box for emergency stopping the operation of the lifting device. In that case, since the operation means of the emergency stop device for the above-mentioned emergency stop of the dust loading device is provided below the charging port, it is only necessary to separately provide the operation means of the emergency stop device for the emergency stop of the lifting device. It becomes very difficult to secure space. Moreover, if the operating means for the two emergency stop devices are individually provided below the charging port, there is a risk that the operating means for the emergency stop of the lifting device may be mistakenly operated, especially during an emergency stop of the dust loading device. There is concern about the reliable operation of the emergency stop device. Further, while the operating means of the emergency stop device for the emergency stop of the dust loading device is configured to swing in the front-rear direction of the vehicle body, the operating means of the emergency stop device for the emergency stop of the lifting device moves in the vertical direction. It is necessary to swing the same, and the operating means of both the emergency stop devices cannot be used in common.

The present invention has been made in view of the above points, and an object thereof is to enable operation of an emergency stop device for an emergency stop of a dust loading device and an emergency stop of a lifting device by a single operating means. Therefore, the emergency stop device is surely operated, and the operation means is also used.

[0007]

In order to achieve the above-mentioned object, a solution means provided by the invention according to claim 1 is to mount a dust container having a dust loading port on a rear wall on a chassis.
The refuse loading box is connected to the dust loading port of the dust loading box, and the dust loading box feeds the dust loaded at the bottom from the loading port to the dust loading box via the dust loading port. A dust collection vehicle with a lifting device that accommodates a dust loading device for loading and that is provided with a lifting device that includes a lifting platform that moves up and down between the loading position where dust can be loaded into the loading port and the ground. Is assumed. An emergency stop device for individually emergency stopping the dust loading device and the elevating device is provided, and the emergency stop device is provided with an operating means that is swingably supported in the vertical direction at the lower end of the dust throwing box. A first swing detection means for detecting that the operating means has swung upward, a second swing detection means for detecting that the operating means has swung downward, and both swing detections. When a signal from the means is received, the operation of at least the elevating device of the dust loading device and the elevating device is stopped when the operating means is swung upward, while the dust is removed when the operating means is swung downward. And a stop means for stopping the operation of the loading device.

With this configuration, in the invention according to the first aspect, when the lifting device is raised, a part of the dust on the load receiving base or a protruding portion such as a worker's foot abuts on the operating device so that the operating device is on the upper side. When it is rocked, the lifting device makes an emergency stop before the protruding part is caught between the lower end part of the charging port and the dust collecting device by rocking the operating device at least downward while loading the dust collecting device. The loading device makes an emergency stop, and the operating means swinging in the vertical direction is also used as the operating means of the emergency stop device for the emergency stop of the dust loading device and the emergency stop of the lifting device. Therefore, it is not necessary to separately provide an operating means for the emergency stop device, it is not necessary to secure a space for separately providing an operating means for the emergency stop device for the emergency stop of the lifting device, and the dust is prevented from causing an erroneous operation of the operating means. The emergency stop device operates reliably during an emergency stop of the loading device and lifting device. Moreover, since the emergency stop device is actuated by swinging the operation means at least downward when the dust loading device is stopped in an emergency, the operation means is compared with a device that swings the operation means forward of the vehicle body during an emergency stop. The operation can be performed in the same manner, and the operability of the operating means does not deteriorate.

The solution taken by the invention according to claim 2 is as follows.
The operating device of the invention according to claim 1 is specified, and the operating portion is provided so as to be swingable in the vertical direction, the bracket provided at the lower end portion of the dust throwing box, and the bracket is swingable in the longitudinal direction of the vehicle body. A first swinging member supported by the first swinging member for converting the downward swinging locus of the operation portion into a straight swinging locus forward of the vehicle body; and a first swinging member for biasing the first swinging member rearward of the vehicle body. A first oscillating member and a second oscillating member which is supported by the first oscillating member so as to be vertically oscillatable and which converts an upward swing locus of the operation portion into an upward linear swing locus. The moving member and the second urging member that urges the second swinging member downward are provided.

With this configuration, in the invention according to the second aspect, the swing locus of the operation portion toward the lower side is a straight line forward of the vehicle body by the first swing member that swings with respect to the bracket at the lower end of the dust throwing box. It is converted into a typical swing locus, and the operation of the operation unit at the time of emergency stop of the dust loading apparatus can be performed in the same way as the operation in front of the vehicle body, and the operability of the operation means is further improved. In addition, the first having each swing fulcrum
The second swinging member enables the operation portion to move upward and in the front of the vehicle body in a substantially right-angled direction, and the single swinging fulcrum causes the operation portion to rotate downward from the upper side to the vehicle body front side in an arc shape. Compared with the case where the operation section swings in the vertical direction, the time when the operation section starts to swing in the directions orthogonal to each other, that is, the time when the operation section starts to move linearly to the upward swing and the forward swing of the vehicle body It is shortened, the detection accuracy of the operation part is improved, and
The turning radius of the operating portion becomes small, and the operating means of the emergency stop device becomes compact. In addition, the first and second
The swinging members are biased by the biasing members respectively, so that the emergency stop device is prevented from being inadvertently actuated by the vibration of the vehicle body when dust is loaded, and the detection accuracy of the first and second swinging detection means is improved. Guaranteed.

A solution taken by the invention according to claim 3 is as follows.
The first swing detection device and the second swing detection device of the invention according to claim 1 or 2 are specified, and the first swing detection means is
The operating means comprises a first swing detector having a contact which comes into contact with the operating means when swinging upward, while the second swing detecting means operates when swinging the operating means downward. The second swing detector has a contact for contacting the means.

With this configuration, in the invention according to the third aspect, when the operating means swings upward and downward, the operating means is brought into contact with the contact points of the respective swing detectors, so that the lifting device and the dust loading device. It can be used as an emergency stop device for the emergency stop of the dust loading device and the emergency stop of the lifting device to improve the operability of the operating device when the dust loading device and the lifting device are stopped in an emergency. The emergency stop device operates reliably without any deterioration.

[0013] The solution taken by the invention according to claim 4 is as follows.
In addition to the constituent features of the invention according to any one of claims 1 to 3, an emergency stop device for a dust loading device that causes an emergency stop of the dust loading device is provided on the load receiving platform of the lifting device. It is configured.

With this configuration, in the invention according to claim 4, the load receiving base of the lifting device moves up and down behind the vehicle body of the operating means of the emergency stop device, and the load receiving base interferes with the operation of the operating means. Even when working on the loading platform that has been raised to the loading position, the emergency stop of the dust loading device can be reliably and quickly performed by the emergency stopping device for the dust loading device of the loading platform.

[0015] The solution taken by the invention according to claim 5 is as follows.
An emergency stop device for a dust loading apparatus according to the invention of claim 4 is specified, and an advancing / retreating operation unit provided at the rear end of the load receiving platform so as to be advancing / retreating, and an advancing / retreating for detecting that the advancing / retreating operation unit has moved forward and backward. It is configured to include movement detecting means and other stopping means for receiving the output of the advancing / retreating movement detecting means and stopping the operation of the dust loading apparatus when the advancing / retreating operation section moves forward / backward.

With this configuration, in the invention of claim 5, the dust loading device can be easily operated even from the rear of the load receiving base farthest from the operating means of the emergency stop device by operating the advancing / retreating operation section at the rear end of the load receiving base. Emergency stop can be performed.

The solution taken by the invention described in claim 6 is:
According to the fifth aspect of the present invention, the advancing / retreating operation portion is specified, and the advancing / retreating operation portion is supported so as to be capable of advancing / retreating in the front-rear direction of the vehicle body, and is configured to advance to the rear of the vehicle body by the biasing force of the biasing member.

With this configuration, in the invention according to the sixth aspect, the dust loading apparatus can be emergency stopped by operating the advancing / retreating operation section in the same manner as the operation of the normal emergency stopping apparatus for swinging the operating means forward of the vehicle body. The operation of the advancing / retreating operation section can be performed without a feeling of strangeness.

The solution taken by the invention according to claim 7 is as follows.
The advancing / retreating movement detecting device of the invention according to claim 6 is specified, and the advancing / retreating movement detecting device is constituted by a non-contact type detector for detecting the advancing / retreating movement of the advancing / retreating operation portion to the front of the vehicle body in accordance with the movement amount thereof.

With this configuration, in the invention according to claim 7, the emergency stop device for the dust loading device operates only when the contactless type detector detects that the advancing / retreating operation part has retreated, depending on the amount of movement. However, the emergency stop device for the dust loading device is prevented from being inadvertently actuated by the vibration of the vehicle body at the time of loading the dust and the detection accuracy of the advancing / retreating movement detecting means is enhanced.

Further, the solution means taken by the invention described in claim 8 is, in addition to the constituent features of the invention described in any one of claims 1 to 7, a lifting device and its lifting device. A lifting / lowering operation restricting means is provided for disabling the lifting / lowering operation of the device during the loading operation of the dust loading device.

With this configuration, in the invention according to claim 8, the lifting and lowering movement of the load carrier of the lifting device is prohibited during the dust loading work by the dust loading device, and the worker on the load carrier loses balance and falls down. Unintentional accidents are surely prevented.

[0023]

Embodiments of the present invention will be described below with reference to the drawings.

7 and 8 show a refuse collecting vehicle with a lifting device according to an embodiment of the present invention. The dust collecting vehicle 1 has a substantially rectangular frame-shaped cross section as a chassis extending in the front-rear direction at both lower left and right positions. A chassis frame 2 (only one of which is shown in the drawing) is provided, and a sub-frame 3 having a substantially rectangular cross section is provided on the chassis frame 2. On the sub-frame 3, there is mounted a dust storage box 4 having a dust loading port 4a for loading dust on the rear side of the vehicle body, and further, the rear end upper position of the dust storage box 4 is mounted. In addition, a dust throwing box 6 is provided with a dust throwing box 4 via a first axis 5 described later.
It is arranged so as to be swingable with respect to. The dust input box 6 is secured to the dust storage box 4 by a pair of left and right securing devices (not shown) so as to close the dust loading port 4a.

The dust throwing box 6 is opened at the front side of the vehicle body and communicates with the dust loading port 4a of the dust receiving box 4, and a throwing port 11 for throwing dust is opened at the lower rear portion of the dust throwing box 6. A dust storage chamber 12 is formed, and the dust storage box 4 is formed by crushing the dust in the dust input box 6.
A compression type dust loading device 13 for loading inside is equipped. The dust loading device 13 is provided along the left and right side walls of the dust throwing box 6 and is provided with a guide groove member 14 (only one of which is shown in the figure) made of a channel steel inclined toward the lower rear part of the vehicle body. The first pivot 5 is pivotally supported on the upper end of the guide groove member 14. On the other hand, an elevating plate 15 formed over the entire width thereof is housed in the dust throwing box 6, and the upper and lower parts of the elevating plate 15 are rollable along the inner wall of the guide groove member 14. The guide rollers 16 and 16 to be fitted are axially attached (the portion indicated by the broken line in FIG. 7). Also, the lift plate 1
A second pivot 17 is axially supported on the upper part of the rear surface of the guide 5, and the second pivot 17 extends along the rear surface of the guide groove member 14 and matches the sliding distance of the elevating plate 15 with the dust throwing box 6 Over the notch 18 formed in the side wall of the container, and is projected outward from the inside of the dust throwing box 6. Then, as shown by the broken line in FIG. 7, a pair of lifting cylinders 19 are provided between the second pivot 17 protruding outward and the lower outside of the dust throwing box 6.
Is provided along the inclination direction of the guide groove member 14,
By the expansion and contraction operation of the lifting cylinder 19, the lifting plate 1
5 is reciprocated along the guide groove member 14.

At the lower end of the elevating plate 15, a pushing plate 21 extending over the entire width of the dust throwing box 6 is pivotally supported back and forth, and the pushing plate 21 is also movable. A pair of push-in cylinders 23 are connected between the support piece 22 protruding from the rear surface and the second pivot 17 at the tip of the elevating cylinder 19, and the push-in plate 21 moves the push-in plate 21 by the expansion and contraction operation of the push-in cylinders 23. It is configured to swing back and forth around the support 24. As a result, the dust thrown into the storage chamber 12 (bottom portion) from the throw-in port 11 of the dust throw box 6 is scraped by the swinging of the pushing plate 21 from the rear to the front indicated by the phantom line (dashed line) in FIG. 7. After that, the storage chamber 12
By moving the pushing plate 21 upward along the inner front wall via the elevating plate 15, the dust is loaded into the dust storage box 4 (in the dust storage space 27a described later) from the dust loading port 4a.

The dust storage box 4 has a discharge plate 26 provided over the entire cross section thereof for storing the dust loaded from the dust loading device 13 via the dust loading port 4a. 27a and its front space 27b, and the discharge plate 2 is provided below the front space 27b.
A discharge cylinder 28 for moving 6 in the axle direction is provided. The discharge cylinder 28 makes the discharge plate 26 close to the dust loading port 4a of the dust storage box 4 at the time of extension thereof to minimize the volume of the dust storage space 27a, while increasing the volume of the dust storage space 27a when contracted. It is designed to do. Then, as shown in FIG. 9, the dust loading device 13 is provided with first and second emergency stop devices 29L and 29R for making an emergency stop of the dust loading device 13. The first and second emergency stop devices 29L and 29R are
It is configured by push-type push buttons provided on both the left and right sides of the insertion port 11.

On the other hand, at the lower end portion of the dust throwing box 6, there is provided a load receiving base 31 which moves up and down between the throwing position into which dust can be thrown and the dust loading position. A lifting device 32 is provided. In the lower part of the dust throwing box 6, a pair of right and left quadrangular pillars 33, 33 extending in the vertical direction along the left and right side edges of the throwing port 11 are provided. A slit 33a extending in the direction is formed. Each of the columns 33 is provided with a slider 34 that slides in the up-down direction while sandwiching the rear surface of each column 33 from the inside / outside direction (front-rear direction of the vehicle body) via the slit 33a. At the lower end of the slider 34 on the outer side (rear side of the vehicle body) of each of the columns 33, the load receiving base 31 is provided.
Left and right ends of the are rotatably supported via pins 35. The load receiving base 31 is configured to rotate approximately 90 ° between a storage position in which the cargo receiving base 31 falls down along each of the columns 33 and a horizontal position in which it is held at a substantially right angle with respect to each of the columns 33. Then, the load receiving base 31 raises and lowers each of the sliders 34 in the support column 33 by the raising and lowering drive motor M described later, and the loading port 1
1 is moved up and down between a loading position (the position indicated by the chain double-dashed line shown in FIG. 8) that substantially coincides with the lower edge and a mounting position (the position indicated by the one-dot chain line shown in FIG. 8) that contacts the ground S. .

As a characteristic part of the present invention, as shown in FIGS. 1 to 3, a third emergency stop device 51 (emergency stop device) for individually emergency stopping the dust loading device 13 and the elevating device 32. ) Is provided. The third emergency stop device 51 includes an operating means 52 supported at the lower end of the dust throwing box 6 so as to be vertically swingable, and the operating means 5.
A first swing detecting means 53 for detecting that the operating means 52 has swung upward, a second swing detecting means 54 for detecting that the operating means 52 has swung downward, and the first swing. Upon receiving a signal from the detecting means 53, when the operating means 52 swings upward, the lifting operation of the dust loading device 13 and the lifting device 32 is stopped, while the signal from the second swing detecting means 54 is sent. Stopping means 50 for stopping the loading operation of the dust loading apparatus 13 when the receiving and operating means 52 swings downward
(See FIG. 4).

The operating means 52 is used for the dust throwing box 6
Is provided with a third emergency stop lever 60 as a bar-shaped operation portion extending in the vehicle width direction at the lower end thereof. The third emergency stop lever 60 is provided at the lower end of the dust throwing box 6 as a pair of left and right sides. The support portions 61L and 61R are swingably supported upward and downward, respectively, from a reference position that allows vertical swing, as a starting point. Both supporting portions 61
L and 61R are a bracket 62 having a substantially U-shaped cross section provided at the lower end of the dust throwing box 6, and an upper end thereof supported by the bracket 62 via a first pin 63 so as to be swingable in the vehicle longitudinal direction. The first swinging member 64 for converting the downward swinging trajectory of the third emergency stop lever 60 into a linear swinging trajectory forward of the vehicle body, and the first swinging member 64 to the vehicle rearward direction. A first biasing spring 65 as a first biasing member for biasing
And a front end of the first swing member 64 is supported by the lower end of the first swing member 64 via a second pin 66 so as to be swingable in the vertical direction.
A second swing member 67 that converts the upward swing locus of the emergency stop lever 60 into a straight upward swing locus, and the first swing member 64 and the second swing member 67 in cooperation with each other. And a second biasing spring 68 as a second biasing member that biases the second swinging member 67 downward. The third emergency stop lever 60 is fixed to the rear end of the second swinging member 67, and moves the first swinging member 64 to the vehicle body front position against the biasing force of the first biasing spring 65. While swinging, the second swinging member 67 is swung to the upper position against the biasing force of the second biasing spring 68.
The first rocking member 64 is formed by a pair of left and right plate-shaped rocking pieces 64a, 64a.
The second pin 66 connecting the lower end portion of 4a in the vehicle width direction and connecting it enables the swinging pieces 64a to swing integrally. The first biasing spring 65 has one end supported by the bottom portion of the bracket 62 and the other end supported by a first stopper 64b attached to the upper rear end of the first swinging member 64. The second biasing spring 68 is
The second attached to the lower front end of the first swing member 64
One end is supported by the stopper 64c, and the other end is supported by the third stopper 67a attached to the lower rear end of the second swinging member 67. Then, the first swing member 64
The clip 64d attached to the first stopper 64b comes into contact with the connecting piece 62a that connects the lower rear end of the bracket 62 in the vehicle width direction by the urging force of the first urging spring 65, and Held in position. On the other hand, the second swinging member 67 is the fourth stopper 64e provided at the center of the front end of the first swinging member 64.
On the other hand, the front end upper surface is held in the lower position by abutting by the urging force of the second urging spring 68.

Further, the first swing detecting means 53 is arranged such that when the operating means 52 is swung upward, that is, when the third emergency stop lever 60 is swung to an upper position, the third emergency stop lever 60 is moved. A first limit switch 72 as a first swing detector having a ring-shaped contact 72a that comes into contact with a first dog 71 having a substantially U-shaped cross section attached to the (operation means 52).
And a ring-shaped contact 77 that comes into contact with a third dog 76 that is attached to the third emergency stop lever 60 and has a substantially U-shaped cross section.
and a third limit switch 77 as a first swing detector having a. The first limit switch 72 is attached to the right side surface of the second swing member 67 of the right side support portion 61R via a stay 73. Further, the third limit switch 77 is attached to the right side surface of the second swinging member 67 of the left side support portion 61L via a stay 79. On the other hand, the second swing detection means 5
Reference numeral 4 indicates the swinging of the operating means 52 downward, that is, the third
Second swing detection having a ring-shaped contact point 75a that comes into contact with a second dog 74 having a substantially U-shaped cross section attached to the third emergency stop lever 60 when the emergency stop lever 60 swings to the front position of the vehicle body And a second limit switch 75 as a container. The second limit switch 75 is
The right side support portion 61R is attached to the left side surface of the bracket 62 via a stay 78.

As shown in FIG. 4, a circuit for controlling the operations of the dust loading device 13 and the lifting device 32 is provided across the power supply line 41 and the ground line 42. . The circuit for controlling the operations of the dust loading device 13 and the lifting device 32 is a known dust loading device 1.
3 and the electric circuit of the lifting device 32 are the same, so only the characteristic parts are shown and the other parts are omitted.

Reference numeral 43 in FIG. 4 denotes a power-on circuit for powering on each circuit of the dust loading device 13 and the lifting device 32 in a controllable manner. A main switch SW1 provided on an operation panel on the rear surface and a pilot lamp PL that is turned on so as to signal the up-and-down movement of the load receiving table 31 by energizing the main switch SW1 are connected in series. In the middle of the power-on circuit 43 located between the main switch SW1 and the pilot lamp PL, there are provided an ascending movement circuit 43a for ascending and moving the load carrier 31 and a descending movement circuit 43b for moving the load receiver 31 downward. One ends are connected in parallel via a lifting operation regulation circuit 43c. The ascending switch SW2 provided on the operation panel and the b contact of the first limit switch 72 are connected in series to the ascending movement circuit 43a. The ascending movement circuit 43a
The contact b of the first limit switch 72 of FIG. 2 is in a non-energized state when the swing of the third emergency stop lever 60 to the upper position is detected by the first limit switch 72 to open the ascending movement circuit 43a. Is configured as the first stopping means 49 for stopping the ascending movement of the cargo receiving table 31, and the first stopping means 49 is included as a component of the stopping means 50 of the third emergency stop device 51. Also, the descending movement circuit 43b
Includes a lowering switch SW3 provided on the operation panel,
A solenoid SOL1 for switching the elevation drive motor M so as to rotate in a direction opposite to that when it is raised is connected in series. The ascending movement circuit 43a and the descending movement circuit 43
Each of the other ends of b is connected to a lifting drive circuit 48. The lifting drive circuit 48 includes an interlocking switch SW2-a interlocking with the lifting switch SW2 of the lifting movement circuit 43a and a positive drive source for the lifting device 32. An up-and-down drive motor M that is switched so as to be capable of reversing is connected in series.

In FIG. 4, reference numeral 44 indicates that the pushing plate 21 is swung from the rear side to the front side, scraped and collected, and then moved upward to load the dust into the dust storing box 4, and then the push plate 21 is returned to its original position. In order to return, it is a dust loading device operating circuit that operates the dust loading device 13, and the dust loading device operating circuit 44 is connected with a relay R1 that is energized when loading the loading device 13. There is. In the dust loading device operating circuit 44,
A first stop circuit 46 that stops the loading operation of the dust loading device 13 when the third emergency stop lever 60 swings to the upper position and the vehicle body front position is connected in series. To the first stop circuit 46, an a contact of a relay R22, which will be described later, and a b contact of the second and third limit switches 75 and 77 are connected in series. This first stop circuit 4
6 indicates that when the second limit switch 75 detects the swing of the third emergency stop lever 60 to the front position of the vehicle body, the b contact of the second limit switch 75 of the first stop circuit 46 is in the non-energized state. The opening operation stops the loading operation of the dust loading apparatus 13 while the third limit switch 77 detects the swing of the third emergency stop lever 60 to the upper position. The third limit switch 77 is configured to stop the loading operation of the dust loading device 13 by opening the b contact of the third limit switch 77 in a non-energized state, and the first stop circuit 46 also stops the third emergency stop device 51. Means 5
Included as 0 component.

Further, as shown in FIG. 5 and FIG. 6, the dust loading device 1 is mounted on the load receiving base 31 of the lifting device 32.
A fourth emergency stop device 81 is provided as an emergency stop device for the dust loading device that causes the emergency stop of the device 3. The fourth emergency stop device 81 has an advancing / retreating operation section 82 provided at the rear end of the load receiving base 31 so as to be capable of advancing / retreating in the vehicle front-rear direction, and the advancing / retreating operation section 82 moving forward / backward, that is, in the vehicle longitudinal direction. And an advancing / retreating movement detecting means 83 for detecting the movement, and another stopping means for receiving the output of the advancing / retreating movement detecting means 83 and stopping the loading operation of the dust loading apparatus 13 when the advancing / retreating operation portion 82 moves forward of the vehicle body. And a second stop circuit 47 (see FIG. 4).

The advancing / retreating operation section 82 is provided with a bar-shaped fourth emergency stop lever 85 extending substantially in the center of the rear end of the load receiving base 31 in the vehicle width direction.
Is supported by the operation portion main body 86 so as to be movable in the front-rear direction of the vehicle body so that the operation portion body 86 is pushed from a rear end of the load receiving base 31 to move forward of the vehicle body. The operation section main body 86 is provided inside the load receiving base 31 in the front-rear direction of the vehicle body and a rod-shaped member 87 that is provided inside the load receiving base 31 and supports the rod-shaped member 87 so as to be movable in the front-back direction of the vehicle body. And a biasing spring 89 as a biasing member that biases the rod-shaped member 87 toward the rear side of the vehicle body. The urging spring 89 includes a ring-shaped first stopper portion 87a fixed at a substantially central position on the outer peripheral surface of the rod-shaped member 87, and a support bracket 8 facing the first stopper portion 87a in front thereof.
It is contracted between the ring-shaped second stopper portion 88a that is fixed to the No. 8 and the second stopper portion 88a. Then, the fourth emergency stop lever 85 is fixed to the rear end side of the rod-shaped member 87, and the fourth emergency stop lever 85 is projected to the rear of the vehicle body by the urging force of the urging spring 89. Retained.

The advancing / retreating movement detecting means 83 uses the amount of movement of the advancing / retreating operation section 82 to move forward of the vehicle body, that is, to move forward of the vehicle body against the biasing force of the biasing spring 89 of the fourth emergency stop lever 85. The proximity switch 90 is a non-contact type detector that detects the corresponding amount. The proximity switch 90 includes a magnet 90 a attached to a cylindrical tubular bracket 92 fitted to the front end of the rod-shaped member 87 via an L-shaped stay 91, and the magnet 9 a.
When the rod-shaped member 87 is attached to the front end portion of the support bracket 88 facing the front of the vehicle body 0a at a predetermined distance via an L-shaped stay 93 and the rod-shaped member 87 moves to the front of the vehicle body, that is, the fourth emergency stop lever 85 is attached to the vehicle body. The switch main body 90b is in contact with the magnetic force of the magnet 90a when pushed forward. The contact between the magnet 90a and the switch body 90b is caused by the fourth emergency stop lever 85.
It is performed only when the vehicle is pushed forward in the vehicle body, and is brought into non-contact when the fourth emergency stop lever 85 is restored (moved) to the vehicle body rearward by the urging force of the urging spring 89.

The second stop circuit 47 is connected to the power supply line 41 so that power can be supplied to the second stop circuit 4.
A b-contact of the proximity switch 90 and a relay R22 that is energized when the dust loading apparatus 13 is operated are connected in series to the switch 7. The second stop circuit 47 should be opened when the proximity switch 90 detects the pushing operation (movement) of the fourth emergency stop lever 85 toward the front of the vehicle body so that the contact b of the proximity switch 90 is in the non-energized state. Is configured to stop the loading operation of the dust loading device 13.

Further, a parallel circuit 45, which is parallel to the dust loading apparatus operating circuit 44, is connected to the dust loading apparatus operating circuit 44, and the parallel circuit 45 is connected to the dust loading apparatus 13 of the dust loading apparatus 13. A relay R21 that is energized during the loading operation is connected. On the other hand, the b-contact of the relay R21 of the interlocking circuit 45 is connected to the elevating operation regulating circuit 43c, and the elevating operation regulating circuit 43c operates by the operation of the dust loading device 13 to cause the relay R21 of the parallel circuit 45 to operate. When the relay R21 is energized, the contact b of the relay R21 is de-energized and opened, thereby disabling the closing of the ascending movement circuit 43a by the ascending switch SW2 and the closing of the descending movement circuit 43b by the descending switch SW3. The closing device is disabled, and the lifting device 32 is used during the loading operation of the dust loading device 13.
An up-and-down operation restricting circuit 43c is configured as an up-and-down operation restricting means that disables the up-and-down operation.

Here, a description will be given of a work procedure for throwing dust, such as bulky and heavy bulky dust, into the storage chamber 12 of the dust throwing box 6 through the feeding port 11.

First, by energizing the main switch SW1, the pilot lamp PL is turned on to activate the lifting device 32. Next, after rotating the cargo receiving table 31 to the horizontal position, the lowering switch SW3 is energized to lower the cargo receiving table 31 to the mounting position, on which the operator puts dust together with the raising switch SW.
2 is energized to raise the loading tray 31 to the loading position. At this time, if a part of the dust on the cargo receiving table 31 or a worker's foot or the like protrudes toward the lower end portion side (front side of the vehicle body) of the loading port 11, the protruding portion contacts the third emergency stop lever 60. When the third dog stop lever 60 is swung to the upper position and the first dog 71 contacts the contact 72a of the first limit switch 72, the contact b of the first limit switch 72 of the ascending movement circuit 43a is not energized. In this state, the ascending movement circuit 43a is opened, and the upward movement of the cargo receiving tray 31 is restricted, and the protruding portion on the cargo receiving tray 31 moves up and down before being caught between the lower end portion of the loading port 11. The device 32 is brought to an emergency stop, and a trapping accident or the like on the cargo receiving table 31 is prevented.

On the other hand, when the cargo receiving table 31 is lifted without stopping emergency and stopped at the loading position, the dust loading device 13 is operated after the dust is loaded into the storage chamber 12 at this loading position. After the dust in the storage chamber 12 is scraped forward by the swing of the pushing plate 21, the dust is loaded into the dust storage box 4 through the dust loading port 4a as the pushing plate 21 moves upward. When an accident such as a part of the body of the worker being caught in the dust loading device occurs during the loading work, the worker on the ground S moves the third emergency stop lever 60 to the front position of the vehicle body or When rocked to the upper position,
The second dog 74 of the third emergency stop lever 60 comes into contact with the contact point 75a of the second limit switch 75 or the third dog 76 comes into contact with the contact point 77a of the third limit switch 77, whereby the first stop circuit 46 becomes 2 b of limit switch 75
The contact or the contact b of the third limit switch 77 is de-energized, the first stop circuit 46 is opened, and the dust loading apparatus 1
The loading operation of 3 is stopped urgently. On the other hand, the receiving stand 31
When the upper operator pushes the fourth emergency stop lever 85 forward of the vehicle body, the magnet 90a of the proximity switch 90 of the fourth emergency stop lever 85 and the switch body 90b come into contact with each other, so that the proximity switch of the second stop circuit 47 is contacted. Of the second stop circuit 47 is opened and the second contact of the relay 22 of the first stop circuit 46 is turned off, and the first stop circuit 46 is opened. Similarly, the loading operation of the dust loading device 13 is also stopped urgently, and an accident accident of the worker is promptly avoided.

When there is still dust on the ground S that requires the load receiving base 31, after the dust loading device 13 has stopped operating, the lowering switch SW3 is energized to move the load receiving base 31 to the mounting position. While the above work is continuously performed until the dust is removed and the dust is gone, when there is a bulky and light dust that does not require the cargo receiving base 31, the dust loading device 13 is continuously operated and the cargo receiving base 31 is loaded. The worker carries out the dust loading work while stopped at the position. Also, the ground S
When the upper dust is lost, the cargo receiving base 31 is rotated to the storage position along the rear surface of the dust throwing box 6, and then the dust collecting vehicle 1 is moved to the next dust collecting position.

In this case, even if the raising / lowering switches SW2 and SW3 are energized to move the load receiving platform 31 up and down while the dust loading device 13 is operating, the relay R21 is energized to move up and down when the dust loading device 13 is operating. Operation control circuit 43c
Is opened, the up switch SW2 of the up movement circuit 43a and the down switch SW of the down movement circuit 43b are opened.
Both 3 are de-energized, and the lifting and lowering movement of the load receiving base 31 during the operation of the dust loading device 13 is disabled.

As described above, in the above-described embodiment, when the lifting device 32 is raised, a part of the dust on the load receiving base 31 or a protruding portion such as a worker's foot comes into contact with the third emergency stop lever 60. When the third emergency stop lever 60 swings to the upper position, the elevating device 32 makes an emergency stop before the protruding portion is sandwiched between the protruding portion and the lower end of the insertion port 11,
The third emergency stop lever 6 is activated when the dust loading device 13 is activated.
By swinging 0 to the front position or the upper position of the vehicle body, an emergency stop is performed even if the dust loading device 13 is in operation, and the third emergency stop lever 60 is used to move the dust loading device 13 to the dust loading device 13.
It can also be used as a lever for the emergency stop of and the emergency stop of the lifting device 32. Therefore, it is not necessary to separately provide a lever for emergency stop of the dust loading device 13 and an emergency stop of the lifting device 32, and it is necessary to secure a space for separately providing a lever of the emergency stop device for emergency lifting of the lifting device 32. In addition, the third emergency stop device 51 can be reliably operated during an emergency stop of the dust loading device 13 and the lifting device 32 without causing an erroneous operation of the third emergency stop lever 60.

Further, in the above embodiment, since the third emergency stop device 51 is actuated by the swinging of the third emergency stop lever 60 to the vehicle front position and the upper position at the time of the emergency stop of the dust loading device 13, Compared with the one that swings the lever (operating device) forward of the vehicle body in case of emergency stop,
The emergency stop lever 60 can be operated more effectively, and the operability of the third emergency stop lever 60 can be improved.
Moreover, both support portions 61L and 61R at the lower end of the dust throwing box 6
While the third emergency stop lever 60 swings linearly forward of the vehicle body by the first swinging member 64 that swings with respect to the bracket 62, the first swinging member 6 of both the support portions 61L and 61R.
Since the third emergency stop lever 60 swings linearly in the vertical direction by the second swing member 67 that swings with respect to 4, the individual swing fulcrums (first and second pins 63 and 66) are provided.
By the first and second rocking members 64 and 67 having
It is possible to move the third emergency stop lever 60 to an upper position and a front position of the vehicle body in a substantially right-angled direction, and the lever swings downward in an arc shape from the upper side to the vehicle front side by a single swing fulcrum. In comparison with the case of the above, the time when the levers start to swing in the directions orthogonal to each other, that is, the time when the levers start to move linearly to the swing upward and the swing forward of the vehicle body is drastically shortened. The detection accuracy of the stop lever 60 can be improved, and the turning radius of the third emergency stop lever 60 can be reduced, so that the left and right support portions 61L and 61R (operating means 52) of the third emergency stop device 51 can be made compact. Can be achieved. Furthermore, the first and second swing members 64,
67 is the first and second biasing springs 65, 6 respectively.
The third emergency stop device 51 is prevented from being inadvertently actuated by the vehicle body vibration such as when dust is loaded, and the detection accuracy of the first and second swing detection means 53 and 54 is guaranteed. can do. In addition, the third emergency stop lever 60 contacts the contacts 72a, 75a of the limit switches 72, 75, 77 only when the third emergency stop lever 60 swings upward and forward of the vehicle body.
The third emergency stop device 51 is prevented from being inadvertently actuated by the vibration of the vehicle body when it comes into contact with 77a and is loaded with dust, and the detection accuracy of the first and second rocking detection means 53, 54 is ensured. Can be guaranteed.

Further, in the above-mentioned embodiment, the loading tray 3
Since the fourth emergency stop lever 85 of the fourth emergency stop device 81 for making an emergency stop of the dust loading device 13 is provided at the rear end of 1, the third emergency stop lever 6 of the third emergency stop device 51 is provided.
At the rear of the vehicle body of 0, the load receiving table 31 of the lifting device 32 moves up and down, and the load receiving table 31 is an obstacle when operating the third emergency stop lever 60, or the work is performed on the load receiving table 31 that has been raised to the loading position. Even if it is carried out, it is possible to surely and quickly carry out the emergency stop of the dust loading apparatus 13 by pushing the fourth emergency stop lever 85 of the load receiving base 31 forward of the vehicle body. Moreover, if the fourth emergency stop lever 85 is operated in the same manner as the operation of a normal emergency stop device that swings the lever toward the front of the vehicle during an emergency stop, the dust loading device 13 can be emergency stopped and the fourth emergency stop lever 85 can be operated. The operation of can be performed without a feeling of strangeness. Furthermore, the fourth emergency stop device 81 operates only when the proximity switch 90 detects that the fourth emergency stop lever 85 has moved to the front of the vehicle body, and the fourth emergency stop device 81 is activated by vibration of the vehicle body such as when loading dust. It is possible to prevent the fourth emergency stop device 81 from inadvertently operating, and improve the detection accuracy of the fourth emergency stop lever 85.

Moreover, in the above-described embodiment, since the lifting / lowering operation restricting circuit 43c prohibits the lifting / lowering device 32 from moving up and down by the lifting / lowering device 32 during the operation of the dust loading apparatus 13, the operator on the cargo receiving board 31 is prevented from moving up and down. It is possible to surely prevent an accident such as losing balance and falling.

The present invention is not limited to the above embodiment, but includes various other modifications. For example, in the above-described embodiment, the downward swing locus of the third emergency stop lever 60 is converted into a linear swing locus toward the front of the vehicle body by the first swing member 64, while the third emergency stop lever 60 is converted. The rocking locus of the upper part 60 of the second rocking member 6
Although it is converted into a straight upward swing locus by 7, the third emergency stop lever swings downward in an arc shape from the upper side to the vehicle body front side by a single swing fulcrum. It may be.

Further, in the above-described embodiment, the lifting operation restricting circuit 43c prohibits the lifting and lowering movement of the load receiving base 31 by the lifting and lowering device 32 when the dust loading device 13 is operating. Along with being attached, a switch for turning on or off the attached circuit is provided in the attached circuit, and when the energization to the lifting operation regulating circuit is off (relay R2
(1) (in the non-energized state), the energization of the above-mentioned additional circuit may be turned on so that the operation of the dust loading apparatus and the lifting / lowering movement of the load receiving stand by the lifting / lowering apparatus are performed in parallel.

In the above embodiment, the dust loading device 13 is moved by swinging the third emergency stop lever 60 to the upper position.
Although the operation of the lifting device 32 is made to be emergency stopped, the operation of only the lifting device may be made to make an emergency stop by swinging the third emergency stop lever to the upper position.

[0052]

As described above, according to the refuse collecting vehicle with the lifting device according to the invention of claim 1, the operating means of the emergency stop device is swung upward to stop the lifting device in an emergency, while the operating device is operated. Since the dust loading device is stopped by urging it to the lower side, a single operating means can be used as an operating means of the emergency stopping device for the dust loading device emergency stop and the lifting device emergency stop. The erroneous operation of the operation means can be prevented, and the emergency stop device can be reliably operated when the dust loading device and the lifting device are urgently stopped. In addition, the operation at the time of emergency stop can be performed by swinging at least downward, and the operability of the operating means can be ensured in the same way as the normal operation.

According to the dust collecting vehicle with the lifting device in the second aspect of the invention, the first swinging member swings on the bracket at the lower end of the dust throwing box, and the second swinging member swings on the first swinging member. Since they are freely supported and have different swing fulcrums, the downward swing locus of the operating means is converted into a linear swing locus of the operating portion forward of the vehicle body and the forward swinging trajectory of the operating portion is moved forward of the vehicle body. The operation can be performed in a comparable manner, and the operability of the operating means can be further improved. Moreover, the operation section can be moved in a substantially right-angled direction to the front and to the front of the vehicle body, and the start time of linear movement to the front and the front of the vehicle, which are orthogonal to each other, can be dramatically shortened, and the detection accuracy of the operation section can be improved. It is possible to improve the size of the operating means of the emergency stop device by reducing the turning radius of the operating portion.
Further, by biasing the first and second swing members by biasing members respectively, inadvertent actuation of the emergency stop device due to vehicle body vibration or the like can be prevented, and the detection accuracy of the first and second swing detection means can be prevented. Can be guaranteed.

In the dust collecting vehicle with the lifting device according to the third aspect of the present invention, since both rocking detecting means are constituted by rocking detectors having contacts that come into contact with each other when the operating means is rocked. When swinging to the upper or lower side, it contacts the contact of each swing detector to perform an emergency stop of the lifting device and the dust loading device, and the operating means is for the dust loading device emergency stop and the lifting device emergency stop It can also be used as the operation means of the emergency stop device, and the operation of the emergency stop device can be reliably performed while improving the operability of the operation means at the time of emergency stop of the dust loading device and the lifting device.

According to the refuse collecting vehicle with the lifting / lowering device of the fourth aspect of the present invention, since the emergency stop device for the dust loading device is provided in the loading tray of the lifting / lowering device, the loading truck can be installed from the rear of the vehicle body and above the loading tray. An emergency stop of the dust loading device can be performed reliably and quickly.

According to the waste collecting vehicle with the lifting device in the fifth aspect of the present invention, the forward / backward moving operation portion at the rear end of the cargo receiving stand, which can be moved forward and backward, facilitates even from the rear of the cargo receiving station farthest from the operating means of the emergency stop device. The dust loading device can be stopped urgently.

According to the refuse collecting vehicle with the lifting device in the invention described in claim 6, since the advancing / retreating operation part is supported so as to be advancing / retreating in the front-rear direction of the vehicle body, the advancing / retreating operation part similar to the operation of a normal emergency stop device is provided. The dust loading device can be stopped urgently by the operation, and the operation of the advancing / retreating operation unit can be performed without a feeling of strangeness.

In the dust collecting vehicle with the lifting device according to the seventh aspect of the present invention, since the advancing / retreating movement detecting device is constituted by the non-contact type detector, the dust loading is carried out only in accordance with the retreating moving amount of the advancing / retreating operation section. It is possible to operate the device emergency stop device, prevent the accidental operation of the dust loading device emergency stop device, and improve the detection accuracy of the advancing / retreating movement detection means.

Further, according to the dust collecting vehicle with the lifting / lowering device in the eighth aspect of the present invention, since the lifting / lowering operation of the lifting / lowering device is prohibited during the loading operation of the dust loading device, it is possible for the operator to inadvertently operate on the receiving table. Accidents can be reliably prevented.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view of a right side support portion according to an embodiment of the present invention.

FIG. 2 is a rear view of a right side support portion.

FIG. 3 is a rear view of a left side support portion.

FIG. 4 is an electric circuit diagram of the dust loading device and the lifting device.

FIG. 5 is a side view of a fourth emergency stop device.

FIG. 6 is a plan view of a fourth emergency stop device.

FIG. 7 is a vertical sectional side view of a dust throwing box.

FIG. 8 is a side view of the garbage truck.

FIG. 9 is a rear view of the garbage truck.

[Explanation of symbols]

1 Dust collection vehicle 2 Chassis frame (carcass) 4 Dust storage box 4a Dust loading port 6 Dust loading box 11 Loading port 13 Dust loading device 31 Loading tray 32 Elevating device 43c Elevating operation regulating circuit (elevating operation controlling means) 47th 2 stop circuit (other stop means) 50 stop means 51 third emergency stop device (emergency stop device) 52 operation means 53 first swing detection means 54 second swing detection means 60 third emergency stop lever (operation section) 62 bracket 64 first rocking member 65 first biasing spring (first biasing member) 67 second rocking member 68 second biasing spring (second biasing member) 72 first limit switch (first rocking) Detector) 72a contact 75 Second limit switch (second swing detector) 75a contact 77 Third limit switch (first swing detector) 77a contact 81 Fourth emergency stop device (Dust loading device for emergency stop device) 82 forward and backward operating unit 83 moves forward and backward detection means 89 biasing spring (biasing means) 90 proximity switch (non-contact type detector) S ground

Claims (8)

[Claims] 1. A dust container having a dust loading port on a rear wall is mounted on a chassis, and a dust loading box is connected to the dust loading port of the dust loading box, and the dust loading box is attached to the dust loading box. Is a loading position at which dust can be loaded into the bottom through an input port, as well as a dust loading device that loads the dust into the dust storage box through the dust loading port. In a dust collection vehicle with a lifting device provided with a lifting device having a load receiving platform that lifts and lowers between the ground and the ground, an emergency stop device for individually emergency stopping the dust loading device and the lifting device is provided, The emergency stop device includes an operating means that is swingably supported in a vertical direction at a lower end portion of the dust throwing box, a first swing detecting means that detects that the operating means swings upward, and The second swing for detecting that the operating means swings downward Upon receiving signals from the motion detecting means and both of the rocking detecting means, when the manipulating means swings upward, at least the lifting device of the dust loading device and the lifting device is stopped, while the manipulating device is operated. And a means for stopping the operation of the dust loading device when the device swings downward, and a dust collecting vehicle with a lifting device. 2. The operating means includes an operating portion which is swingably provided in a vertical direction, a bracket which is provided at a lower end portion of the dust throwing box, and a bracket which is swingably supported in a longitudinal direction of a vehicle body. A first swinging member for converting the downward swinging locus of the operation portion into a straight swinging locus forward of the vehicle body; and a first biasing member for biasing the first swinging member rearward of the vehicle body. A second swinging member which is supported by the biasing member and the first swinging member so as to be swingable in the vertical direction, and which converts the upward swinging locus of the operating portion into an upward linear swinging locus. And a second urging member for urging the second oscillating member downwards. 3. The first swing detecting means is constituted by a first swing detector having a contact which comes into contact with the operating means when the operating means is swung upward, while the second swing detecting means is provided. The dust with a lifting device according to claim 1 or 2, wherein the swing detecting means is constituted by a second swing detector having a contact which comes into contact with the operating means when the operating means is swung downward. Collection vehicle. 4. An emergency stop device for a dust loading device for emergency stop of the dust loading device is provided on a loading tray of the lifting device. The garbage truck with the lifting device described in. 5. The emergency stop device for a dust loading apparatus comprises an advancing / retreating operation section provided at a rear end of the cargo receiving table so as to be advancing / retreating, and an advancing / retreating movement detection for detecting that the advancing / retreating operation section has moved forward and backward. 5. An elevating device according to claim 4, further comprising: means for receiving the output of the advancing / retreating movement detecting means, and another stopping means for stopping the operation of the dust loading apparatus when the advancing / retreating operation section moves forward / backward. A garbage truck. 6. The elevating device according to claim 5, wherein the advancing / retreating operation portion is supported so as to be advancing / retreating in the vehicle front-rear direction, and is configured to advance to the rear of the vehicle body by the urging force of the urging member. A garbage truck. 7. The garbage collecting vehicle with a lifting device according to claim 6, wherein the advancing / retreating movement detecting means is a non-contact type detector that detects the advancing / retreating movement of the advancing / retreating operation section toward the front of the vehicle body in accordance with the movement amount thereof. . 8. The elevating device is provided with elevating operation restricting means for disabling the elevating operation of the elevating device during a loading operation of the dust loading device. The garbage truck with a lifting device according to item 1.