JP5826575B2 - Containers and cargo handling vehicles - Google Patents

Description

  The present invention relates to a container that can be attached to and detached from a cargo handling vehicle, and more particularly to a container having horizontal holding legs such as a dust collection container and a cargo handling vehicle equipped with the same.

  Conventionally, a cargo handling vehicle in which a container can be attached and detached by a lift arm mechanism is known. Recently, there is a garbage collection container as a container mounted on the cargo handling vehicle. This dust collection container has a configuration in which a dust input box is connected to the rear of an approximately rectangular parallelepiped dust storage box, but the dust input box has a low inlet to make the input operation easier for the operator. It is set, and the lower end of the dust input box protrudes greatly below the dust container.

  When such a garbage collection container is carried on a cargo handling vehicle and transported, and lowered and installed on the ground, the container is lowered forward because there is a protruding portion at the lower end of the garbage input box. Therefore, in this kind of dust collection container, there is a container in which a protruding and retractable leg portion is disposed at the lower front end of the dust container, and the leg portion is protruded only when the container is installed on the ground. Is held almost horizontally.

  However, since these legs interfere with the loading of the container onto the cargo handling vehicle, it is necessary to store the legs when loading, but since the legs are stored manually, the legs should be removed with carelessness by the operator. There is a possibility of loading without storing. When loading is performed with the legs protruding, the legs may collide with the rear end of the container loading section of the cargo handling vehicle and damage the legs or the container loading section.

  Therefore, for example, as described in Patent Document 1, a detection unit is disposed on one of the leg portion of the container and the rear end of the container loading unit of the cargo handling vehicle, and the detection target corresponding to the detection unit is provided on the other side. When the detection unit detects the detected part in the container loading operation, the loading operation of the lift arm mechanism is stopped based on the detection result, and the detection unit in the container loading operation However, when the detected part is not detected, there is one provided with a control circuit configured to continue the loading operation of the lift arm mechanism.

Japanese Patent No. 3843341

  However, when the detection unit detects the detected portion as described above, the loading operation of the lift arm mechanism is stopped, and the loading operation of the lift arm mechanism proceeds so that the legs of the container and the cargo handling vehicle If the rear end of the container mounting part does not approach, the detection part will not detect the detected part, so that depending on the operation of the lift arm mechanism, there will be excessive momentum after the container leg part and the container loading part of the cargo handling vehicle. There is a possibility of contact with the edges.

  Accordingly, an object of the present invention is to provide a container capable of detecting the leg storage state at the initial stage of the container loading operation and a cargo handling vehicle equipped with the container.

  The container of the present invention is a container that can be attached to and detached from a cargo handling vehicle. The leg can project and retract at the bottom, the leg grounding sensor that detects the grounding state of the leg to the ground, and the retracted state of the leg. When the leg storage sensor for detecting the leg and the leg ground sensor detect that the leg is separated from the ground, and the leg storage sensor detects that the leg is not stored, And an alarm device for issuing an alarm.

  When the container of the present invention is detachably mounted on the cargo handling vehicle, the container is lifted, the leg is separated from the ground by the leg ground sensor, and the leg is not stored by the leg storage sensor. Then, an alarm is issued by the alarm device. When the leg portion is stored and the leg storage sensor detects that the leg portion is stored, no alarm is issued by the alarm device. On the other hand, in the state where the container is installed on the ground, the leg ground sensor detects that the leg is in contact with the ground, so that no alarm is issued by the alarm device.

  According to the present invention, when it is detected that the leg is separated from the ground by the leg ground sensor and the leg is not stored by the leg storage sensor, an alarm is issued by the alarm device. It is possible to detect the storage state of the leg portion at the initial stage of the start-up operation, and it is possible to prevent the container leg portion from contacting the rear end of the container loading portion of the cargo handling vehicle.

It is a side view of the cargo handling vehicle carrying the container for dust collection in embodiment of this invention. It is a side view which shows the installation state on the ground of the container for dust collection of FIG. FIG. 3 is a front view of FIG. 2. FIG. 3 is a rear view of FIG. 2. It is an enlarged view of the leg part of the container for dust collection of FIG. 2, Comprising: (a) is a figure which shows the installation state on the ground, (b) is a figure which shows the state which the leg part left | separated from the ground, (c) is It is a figure which shows the storing state of a leg part. It is a side view which shows the mode of unloading of the container for dust collection of FIG.

  FIG. 1 is a side view of a cargo handling vehicle equipped with a dust collection container according to an embodiment of the present invention, FIG. 2 is a side view showing an installation state of the dust collection container of FIG. 1 on the ground, and FIG. FIG. 4 is a rear view of FIG. 2, FIG. 5 is an enlarged view of a leg portion of the garbage collection container of FIG. 2, and (a) is a diagram showing an installation state on the ground, and (b) is a leg. The figure which shows the state which the part left | separated from the ground, (c) is a figure which shows the retracted state of a leg part.

  In FIG. 1, a garbage collection container 1 according to an embodiment of the present invention is detachably mounted on a cargo handling vehicle 2 and transported. The cargo handling vehicle 2 includes a cab 4 and a cargo handling device 5 for loading and unloading the garbage collection container 1 on the chassis 3. The cargo handling device 5 has a substantially L-shaped arm 7 having a hook 6 that engages the dust collecting container 1 at its upper end, and a lift cylinder (not shown) for lifting and lowering the arm 7 by expanding and contracting. And a slide cylinder (not shown) for moving the arm 7 forward and backward by expanding and contracting.

  As shown in FIGS. 2 to 4, the dust collection container 1 includes a dust storage box 10 in which dust is stored, and a dust input connected to a rear opening 12 at the rear end of the dust storage box 10. And a box 11. The dust box 11 is pivotally supported by a box support pin 10a above the rear opening 12, and can be tilted around the box support pin 10a.

  In the rear part of the dust input box 11, a substantially rectangular dust input port 13 for inputting dust is opened. The dust input box 11 is provided with a tailgate 14 as an open / close door that opens and closes the dust input port 13. The tailgate 14 is slidable up and down, and the dust inlet 13 can be opened by moving above the dust inlet 13. Inside the dust throwing box 11, a dust loading device (not shown) for loading the dust thrown into the dust throwing box 11 through the dust throwing port 13 into the dust containing box 10 is provided.

  Further, an engaging pin 15 for engaging and disengaging the hook 6 of the cargo handling device 5 described above is provided on the upper front portion of the dust collecting container 1. Further, a leg 16 for holding the dust collection container 1 substantially horizontally when installed on the ground is provided at the front of the bottom of the dust container 10 of the dust collection container 1. Further, a rotatable roller 17 for supporting the dust collection container 1 is provided at the bottom rear portion of the dust collection container 1 (dust input box 11).

  As shown in FIG. 5, the leg portion 16 is rotatably provided on the lower surface of the dust container 10 by the shaft member 20, and when the dust collection container 1 is installed on the ground, ) From the folded state to the state extended downward as shown in FIG. Further, when loading the garbage collection container 1 onto the cargo handling vehicle 2, the legs 16 are folded so as not to interfere with the cargo handling vehicle 2 as shown in FIG. In addition, the leg portion 16 is fixed with a detachable fixing pin 23 in each of the folded state and the extended state.

  Further, the leg portion 16 is provided with a leg grounding sensor 21 for detecting the grounding state of the leg portion 16 to the ground. The leg contact sensor 21 includes a guide part 21c provided on the leg part 16, a bending rod-like advance / retreat member 21a provided so as to be movable back and forth with respect to the guide part 21c, and a proximity sensor 21b for detecting the proximity of the advance / retreat member 21a. Have. The guide portion 21c is provided on the side surface of the distal end portion of the leg portion 16, and holds the advance / retreat member 21a so as to be movable along the side surface. The advancing / retreating member 21a is configured to advance / retreat by contact with the ground as shown in FIGS.

  More specifically, the advance / retreat member 21a is formed in, for example, a substantially I shape. The advancing / retreating member 21a has a long linear portion inserted through a hole 21d provided in the guide portion 21c. Further, the advancing / retreating member 21a is provided with a flat portion at the tip above the guide portion 21c for ensuring the sensitivity of the proximity sensor 21b. The advancing / retreating member 21a is a stopper for preventing the advancing / retreating member 21a from moving further to the distal end side of the leg 16 at a predetermined position where the lower end of the advancing / retreating member 21a protrudes from the tip (grounding surface) of the leg 16. A portion 21e is provided. The advance / retreat member 21a is urged toward the distal end side of the leg portion 16 by a spring 21f via a stopper portion 21e.

  In the state shown in FIG. 6A in which the tip of the leg portion 16 is in contact with the ground, the advance / retreat member 21a is moved upward against the urging force of the spring 21f, and the lower end of the advance / retreat member 21a is the tip of the leg portion 16. The height is approximately the same as the surface. On the other hand, in the state of FIG. 5B where the tip of the leg portion 16 is not in contact with the ground, the advance / retreat member 21a is urged downward by the spring 21f, and the stopper portion 21e is lowered to a position where it abuts against the guide portion 21c. Move to.

  The proximity sensor 21b is attached to the side surface of the leg portion 16 at a position closer to the base end side of the leg portion 16 than the guide portion 21c. The proximity sensor 21b detects the proximity of the upper end of the advancing / retreating member 21a when the leg portion 16 is in contact with the ground as shown in FIG. 11A, and the leg portion 16 as shown in FIG. In a state in which is not in contact with the ground, the proximity of the upper end of the advance / retreat member 21a is not detected.

  Further, a leg storage sensor 22 for detecting the storage state of the leg 16 is provided on the lower surface of the dust container 10. The leg storage sensor 22 is a proximity sensor that detects the proximity of the leg 16. The leg storage sensor 22 detects the proximity of the leg 16 in the state where the leg 16 is stored as shown in FIG. 4C, and the leg storage sensor 22 as shown in FIGS. In the state where the part 16 is not stored, the proximity of the leg part 16 is not detected.

  Then, at the front part of the dust storage box 10, it is detected by the leg ground sensor 21 that the leg 16 is separated from the ground, and the leg storage sensor 22 detects that the leg 16 is not stored. In such a case, an alarm device (see FIG. 3) such as a buzzer 18 and a lamp 19 for issuing an alarm is provided. The alarm device informs the worker that the leg portion 16 is not stored by sound or light from the buzzer 18 or the lamp 19. In addition, the buzzer 18 is provided in the dust container box 10 so as not to be exposed to wind and rain. The lamp 19 is provided at a position that can be seen from the driver's seat outside the refuse storage box 10.

  Moreover, the dust collection container 1 in this embodiment is provided with a drive device for operating the above-described dust loading device at the front portion of the dust storage box 10. As shown in FIG. 3, the driving device includes a control box 30, an independent engine 31, an alternator 32 driven by the independent engine 31, a battery 33 that supplies power to the control box 30 and the like and is charged by the alternator 32, an independent engine The hydraulic pump 34 driven by the engine 31, the fuel tank 35 for storing fuel for driving the independent engine 31, the switch box 36, the control valve 37, and the like are generated by driving the hydraulic pump 34 by the independent engine 31. By supplying the pressure oil to various hydraulic cylinders of the dust loading device through the control valve 37, the dust loading device is operated. The above-described leg ground sensor 21, leg storage sensor 22, alarm device such as the buzzer 18, lamp 19 and the like are operated by the power of the battery 33 of the driving device.

  In the cargo handling vehicle 2 having the above-described configuration, the arm 7 is retracted by contraction of the slide cylinder with respect to the dust collection container 1 placed on the ground (position of FIG. 6A), and is further moved backward by extension of the lift cylinder. Rotate and engage with hook 6. Then, the lift cylinder is contracted to slightly lift the arm 7, and the leg 16 of the dust collecting container 1 is separated from the ground. At this time, the leg ground sensor 21 detects that the leg 16 is separated from the ground, and the leg storage sensor 22 detects that the leg 16 is not stored. Be emitted.

  Here, when the leg 16 is folded and stored in the storage position, it is detected that the leg 16 is separated from the ground by the leg ground sensor 21, and the leg 16 is stored by the leg storage sensor 22. Therefore, the alarm by the alarm device is stopped. Next, the lift cylinder is further contracted to raise the dust collection container 1 onto the chassis 3 (position (B) in FIG. 6), and the arm 7 is advanced by extension of the slide cylinder. As a result, the refuse collection container 1 is mounted on the cargo handling vehicle 2 (position (C) in FIG. 6) and can be transported.

  As described above, in the dust collection container 1 according to the present embodiment, the leg contact sensor 21 detects that the leg 16 is separated from the ground, and the leg storage sensor 22 detects that the leg 16 is not stored. Since the alarm is issued by the alarm device, it becomes possible to detect the storage state of the leg 16 at the initial stage of the loading operation of the dust collecting container 1, and the leg 16 of the dust collecting container 1 can be detected. It can prevent that the rear end of the container loading part of the cargo handling vehicle 2 contacts.

  In addition, in this embodiment, although the structure which attaches / detaches the garbage collection container 1 to the cargo handling vehicle 2 was demonstrated, it is applicable also to the other container which has a leg part which can be folded.

  The container of the present invention is useful as a container that can be attached to and detached from a cargo handling vehicle.

DESCRIPTION OF SYMBOLS 1 Container for dust collection 2 Cargo handling vehicle 3 Chassis 4 Driver's cab 5 Cargo handling device 6 Hook 7 Arm 10 Dust storage box 10a Input box support pin 11 Dust input box 12 Rear opening 13 Dust input port 14 Tailgate 15 Engagement pin 16 Leg Part 17 Roller 18 Buzzer 19 Lamp 20 Shaft member 21 Leg grounding sensor 21a Advance / Retreat member 21b Proximity sensor 21c Guide part 21d Hole part 21e Stopper part 21f Spring 22 Leg storage sensor 23 Fixed pin 30 Control box 31 Independent engine 32 Alternator 33 Battery 34 Hydraulic pump 35 Fuel tank 36 Switch box 37 Control valve

Claims (4)

A container that is loaded onto and unloaded from the cargo handling vehicle by a cargo handling device provided in the cargo handling vehicle ,
Legs protruding and retractable at the bottom,
A leg ground sensor for detecting a ground contact state of the leg to the ground;
A leg portion storing sensor for detecting whether a state where the leg portion is not stored or the stored states,
An alarm device that issues an alarm when the leg ground sensor detects that the leg is separated from the ground, and the leg storage sensor detects that the leg is not stored And a container with.   The leg contact sensor includes a guide provided on the leg, an advancing / retreating member that is provided so as to advance and retreat relative to the guide, and that detects proximity of the advancing / retreating member. The container according to claim 1, further comprising a sensor.   The container according to claim 1, wherein the leg storage sensor is a proximity sensor that detects a storage position of the leg.   A cargo handling vehicle on which the container according to any one of claims 1 to 3 is detachably mounted.

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