JP3197166U - Removable container vehicle - Google Patents

Abstract

The present invention provides a detachable container vehicle that can detect the lengths of three types of containers having different lengths and reliably mount (store) each container in an appropriate position, and can reliably load and unload the container. A detachable container vehicle 100 includes a cargo handling device 2 capable of loading and unloading containers C1 having different lengths on a chassis 1, container length detection units 9a and 9c, and an arm position detection unit 9b. Is provided. The cargo handling device 2 includes a horizontal arm 3 whose rear end is pivotally supported by the rear part of the subframe 50, and an L-shaped cargo handling arm 4 provided on the horizontal arm 3 so as to be extendable and contractable. The container length detection units 9a and 9c and the arm position detection unit 9b detect the detected member attached to each container to determine the type (length) of the container, and set each container to the normal storage position. Placed on. [Selection] Figure 1

Description

  The present invention relates to a detachable container vehicle capable of loading and unloading containers.

  Conventionally, there has been provided a container handling vehicle in which a container is loaded onto the chassis from the ground by the cargo handling arm provided on the chassis, and the container is lowered from the chassis to the ground by the reverse operation (for example, , See Patent Document 1). In this container handling vehicle, the cargo handling arm and the container are provided with a container length detecting unit for detecting the length of the container, and the container length detecting unit determines the length of the container to be loaded. The mounting position of the container with respect to the chassis is determined according to the length.

Japanese Patent No. 3741840

  However, in the conventional container handling vehicle, it is possible to automatically discriminate between two types of containers having different lengths by the container length detection unit. However, when loading three types of containers having different lengths on the chassis, The containers had to be stacked manually, and it was difficult and skillful to mount the containers at appropriate positions on the chassis.

  Therefore, in the present invention, the three different types of containers (lengths) are automatically detected, and the loading center of gravity of each container is mounted (stored) on the chassis to ensure safe operation and reliability. It is an object of the present invention to provide a detachable container vehicle that can be loaded and unloaded.

(1) The present invention includes a cargo handling device having a subframe provided on a chassis and a cargo handling arm that can pivot back and forth with respect to the subframe, and at least the first container and the first by the cargo handling arm. A detachable container vehicle configured to be able to load and unload each of the second container longer than the second container and the third container longer than the second container between the subframe and the ground, A first container length detector having a first detected member provided in the first container and a first detection sensor provided in the subframe and capable of detecting the first detected member; A second container length detection unit provided at a front portion of the subframe and capable of detecting a leading portion of the second container or the cargo handling arm as a second detected member; and the third container. A third detected member provided in the front part of the na and a portion between the first detection sensor and the second detection sensor are provided in the subframe to detect the third detected member. And a third container length detection unit having a third detection sensor.

(2) In the detachable container vehicle according to (1), the first detected member is a protrusion protruding from the first container wall surface, and the first detection sensor is connected to the one end. A tilting member capable of tilting about an intermediate portion between the one end portion and the other end portion as an axis by contact of the first detected member, and the other end portion of the tilting member in the initial state are close to each other When the tilted member is tilted by the contact of the first detected member with the one end, the other end of the tilted member is separated from the tilted member to the tilted member of the first detected member. And a proximity switch for detecting the position of the first container.

(3) In the detachable container vehicle according to (1) or (2), the third detected member is a plate-like member provided on a main beam extending in the front-rear direction at the bottom of the third container. The third detection sensor is preferably a proximity switch that reacts when the third detected member approaches, or a limit switch that detects the contact of the third detected member. .

  According to the above configurations (1) to (3), only the first to third container length detectors having the above-described configuration are attached to the conventional detachable container vehicle at the above-described location of the cargo handling device or the container. Since each type (length) of three different types (lengths) of containers can be detected, for example, by pre-programming in the control device and appropriately operating the cargo handling arm, each container is surely appropriate It is possible to provide a detachable container vehicle that can be mounted (stored) at a certain position (for example, a position suitable for balance of the center of gravity) and that can reliably load and unload each container. In particular, if the detection sensor having the configuration (2) or (3) is used, the types (lengths) of three types of containers having different types (lengths) can be detected more easily and accurately.

It is a side view which shows the detachable container vehicle which concerns on embodiment of this invention, Comprising: It is the figure which showed the case where a 5900 mm long container is mounted. It is the side view which shows the detachable container vehicle which concerns on embodiment of this invention, Comprising: It is the figure which showed the case where a 8000 mm long container is mounted. It is a side view which shows the detachable container vehicle which concerns on embodiment of this invention, Comprising: It is the figure which showed the case where the 8500-mm long container is mounted. FIG. 2 is an enlarged view of a part A of FIG. 1 to show a configuration of a first container length detection unit that detects a container in FIG. 1. FIG. 3 is an enlarged view of part B in FIG. 2 and shows a configuration of a second container length detection unit that detects the container in FIG. 2, and (a) shows an arrow when viewed in the X direction in (b) FIG. 4B is a main part view as viewed from the center of the chassis toward the outside of the chassis. FIG. 4 is a diagram showing a configuration of a third container length detection unit for detecting a container in FIG. 3 by enlarging C part in FIG. 3, wherein (a) is an arrow when viewed in the Y direction in (b) A perspective view and FIG. It is a flowchart figure used for description of the determination method of each container at the time of loading containers C1, C2, and C3 on the removable container vehicle which concerns on embodiment of this invention, and operation | movement of the removable container vehicle 100. FIG.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 to 3, the detachable container vehicle 100 according to the embodiment of the present invention includes a container C (container C1, container C2, or container C3 having different lengths on the chassis 1). Similarly, a cargo handling device 2 capable of loading and unloading work on the ground is provided. The cargo handling device 2 includes a subframe 50 provided on the chassis 1, a horizontal arm 3 whose rear end is pivotally supported by the rear portion of the subframe 50, and is pivotally supported by the front portion of the horizontal arm 3 and can be expanded and contracted. And an L-shaped cargo handling arm 4. At the upper end of the cargo handling arm 4, a hook 5 detachable from the container C is provided.

Further, a rotating hydraulic cylinder (not shown) is connected between the cargo handling arm 4 and the subframe 50, and the cargo handling arm 4 is centered on the rear end thereof by the rotating hydraulic cylinder. 50 is configured to be rotatable in the front-rear direction with respect to 50. The cargo handling arm 4 is provided with a telescopic hydraulic cylinder (not shown) for extending and contracting the cargo handling arm 4. High pressure oil from a hydraulic pump driven by the power of the engine of the detachable container vehicle 100 is supplied to the rotating hydraulic cylinder and the telescopic hydraulic cylinder. Therefore, by operating the hydraulic cylinder for rotation and the hydraulic cylinder for expansion and contraction, if the cargo handling arm 4 is rotated and extended forward of the chassis 1 while the horizontal arm 3 is maintained in a horizontal state, the container C is subframed. 50 can be loaded.
Further, if the horizontal arm 3 and the cargo handling arm 4 are integrally rotated rearward around the rear end portion of the horizontal arm 3, the container C can be dumped.

  Further, on the left and right of the rear end portion of the sub-frame 50, there are provided rollers 6 that can be rotated clockwise or counterclockwise on the paper surface of FIGS. 1 to 3, and the bottom portion of the container C when the rollers 6 are loaded and unloaded. Can be stably supported.

  The containers C having different lengths are classified into, for example, a container C1 having a length of 5900 mm (see FIG. 1), a container C2 having a length of 8000 mm (see FIG. 2), and a container C3 having a length of 8500 mm (see FIG. 3). The Each of the containers C1, C2, C3 is provided with engaging portions 7a, 7b, 7c which are detachably engageable with the hooks 5 of the cargo handling arm 4 at the upper part of the front end surface thereof, and are clockwise in FIG. Alternatively, support rollers 8a, 8b, and 8c that can rotate counterclockwise are provided on the left and right of the rear lower ends of the containers C1, C2, and C3, respectively, and when the containers C1, C2, and C3 are lowered to the ground The support rollers 8a, 8b, and 8c are grounded to support the containers C1, C2, and C3.

  Further, the detachable container vehicle 100 includes a first container length detection unit 9a (see FIGS. 1 to 3 and 4), a second container for detecting each of three types of containers C1, C2, and C3 having different lengths. A container length detection unit 9b (see FIGS. 1 to 3 and 5) and a third container length detection unit 9c (see FIGS. 1 to 3 and 6) are provided.

  As shown in FIG. 4, the container length detection unit 9a as the first container length detection unit includes the bell crank 10 and the proximity switch 11 as the first detection sensor provided in the subframe 50, and the container C1. A body lock case (an example of a protruding portion) 12 as a first detected member provided so as to protrude from the bottom wall surface. The sub-frame 50 has a pair of left and right vertical frames and a horizontal frame that connects the vertical frames to the left and right. The bell crank 10 (tilting member) is provided so as to protrude in an upright state on one of the vertical frames, and a body lock provided in a pair of left and right on the bottom surface of the container C1 by the loading operation of the container C1 by the cargo handling device 2 One end of the case 12 abuts on one side of the case 12 so as to fall forward about the axis of the bell crank 10 toward the front of the chassis 1. Here, since the body lock case 12 is provided only in the container C1, when the containers C2 and C3 other than the container C1 are loaded, the bell crank 10 is held in an upright state without falling forward. When the proximity switch 11 detects that the bell crank 10 has fallen down and the other end of the bell crank 10 is separated from the proximity switch 11, the container C1 detection signal is sent to a control device (not shown). The control device controls the expansion / contraction hydraulic cylinder based on the normal storage position data and control program of the container C1 incorporated in advance, and the normal storage position of the container C1 on the subframe 50 (see FIG. 1). To stop the expansion operation of the telescopic hydraulic cylinder.

  The arm position detection unit 9b as the second container length detection unit is provided in the front part of the subframe 50, and is close as a second detection sensor that detects the position of the cargo handling arm 4 (second detected member). A switch 15 is provided. As shown in FIG. 5, the proximity switch 15 is provided on the horizontal frame of the subframe 50 via a bracket, and is arranged so as to correspond to the normal storage position (see FIG. 2) of the container C2 when the container C2 is loaded. Has been. That is, when the proximity switch 15 detects the position of the cargo handling arm 4 (second detected member), a container C2 detection signal is output to a control device (not shown). The expansion / contraction hydraulic cylinder is controlled based on the built-in normal storage position data and control program of the container C2, and the container C2 on the subframe 50 is positioned at the normal storage position (see FIG. 2) of the container C2. The extension operation of the telescopic hydraulic cylinder is stopped.

As shown in FIG. 6, the container length detection unit 9c as the third container length detection unit includes a proximity switch 14 as a detection sensor provided in the subframe 50, and a first switch provided at the bottom front portion of the container C3. 3 is a plate-like member 13 that is long in the longitudinal direction of the chassis 1 as a member to be detected. More specifically, the plate-like member 13 is provided on one of a pair of left and right main girders 32 extending in the front-rear direction at the bottom of the container C3.
The proximity switch 14 is provided on the right vertical frame in front of the proximity switch 11 and behind the proximity switch 15, and when the container C3 is loaded to the normal storage position (see FIG. 3), the right side of the bottom front portion of the container C3. It arrange | positions so that it may react to the plate-shaped member 13 provided in this. Accordingly, when the proximity switch 14 detects the container C3 due to the proximity switch 14 reacting to the plate-like member 13, a container C3 detection signal is output to a control device (not shown), and the control device Control for operating the warning buzzer of the detachable container vehicle 100 is performed based on the normal storage position data and control program of the container C3 incorporated in advance. At the same time, the control device controls the expansion / contraction hydraulic cylinder based on the data and the control program incorporated in advance, and the container C3 on the sub-frame 50 in the fully extended state of the expansion / contraction hydraulic cylinder is placed in the normal storage position ( Slide to (see FIG. 3). Note that a member such as the plate-like member 13 is not provided in the containers C1 and C2.
However, when both the C1 detection signal and the C3 detection signal are not present when the container is loaded, that is, in the case other than the first and third containers, the telescopic hydraulic cylinder stops at the normal storage position of C2.

  As described above, the container length detectors 9a and 9c and the arm position detector 9b configured as described above extend the cargo handling arm 4 forward by the extension operation of the extension / contraction hydraulic cylinder as described above, or stop the extension. As a result, the positions of the containers C1, C2, and C3 on the subframe 50 are adjusted. That is, as shown in FIGS. 1 to 3, each container C1, C2, C3 is placed at the storage position of each container C1, C2, C3, which is an appropriate position on the subframe 50, so that three types of containers C1, C2, C3 are placed. The center-of-gravity positions 16a, 16b, and 16c of the containers C1, C2, and C3 can be substantially matched. In addition, although the container C3 may be a thing which does not have the plate-shaped member 13, when loading the container C3 which does not have the plate-shaped member 13, a manual changeover switch (not shown) is provided, By switching this manual changeover switch to the ON state, it can be handled in the same manner as the container C3 having the plate member 13.

  Moreover, the detachable container vehicle 100 includes a container locking device 20 for securely fixing the container C to the horizontal arm 3 as shown in FIGS. It has a pair of left and right claws 20 a provided on the horizontal arm 3. The claw portion 20a sandwiches main girders 30, 31, and 32 that extend in the front-rear direction of the chassis 1 at the left and right ends of the bottom surfaces of the containers C1, C2, and C3 (see FIGS. 1 to 3). Each container C1, C2, C3 can be locked (fixed) to the horizontal arm 3. The main girders 31 and 32 of the container C2 and the container C3 are provided with prevention plates 40 and 41 so as to block the main girders 31 and 32 other than the normal storage positions of the container C2 and the container C3 (FIG. 2, FIG. (See FIG. 3). That is, the container C2 and the container C3 are not locked (fixed) to the horizontal arm 3 even when the container locking device 20 is operated except for the normal storage position of the container C2 and the container C3.

  That is, until the container C2 or the container C3 is completely loaded onto the subframe 50, even if the container locking device 20 is erroneously operated, the claw portion 20a is blocked by the prevention plates 40 and 41, and the prevention plate The main girder 31 or the main girder 32 cannot be sandwiched until it reaches a place where 40 and 41 are not present. Therefore, the loading operation of the container C2 or the container C3 can be prevented from being completed. Thereby, it is possible to prevent a failure of a device (such as a hydraulic cylinder) that operates the cargo handling arm 4. Further, when the container C is dumped on the sub-frame 50, the container locking device 20 locks (fixes) the container C at the normal storage position (the claw portion 20a is either 30, 31, or 32). Since the container C is sandwiched, the container C is not displaced with respect to the subframe 50, and the dump operation can be performed safely. For example, in the case where the container C is not located at the regular storage position, if the claw portion 20a does not sandwich any of the main girders 30, 31, and 32, the removable container vehicle so that the dump operation cannot be performed. Since 100 is controlled by the control device, the container C can be prevented from falling from the subframe 50. Further, when the detachable container vehicle 100 is traveling, the container locking device 20 locks (fixes) the container C, so that the container C does not shift with respect to the subframe 50. It is possible to prevent the collision sound with the container C from being generated. When the claw portion 20a does not sandwich any of the main girders 30, 31, and 32, the removable container vehicle 100 is controlled by the control device so that a warning such as an alarm is sounded during traveling. Therefore, it is possible to prevent the container C from falling from above the subframe 50 during traveling.

  Next, a flowchart of FIG. 7 shows a method for identifying each container when the container C (container C1, container C2, or container C3) is loaded on the detachable container vehicle 100, and the pulling slide operation of the detachable container vehicle 100. This will be described with reference to the drawings.

  First, with the cargo handling arm 4 retracted to the maximum, the aforementioned hydraulic cylinder for rotation is extended to rotate the cargo handling arm 4 backward, and the hook 5 of the cargo handling arm 4 is engaged with the engaging portion 7 of the container C. Stop. And the hydraulic cylinder for rotation is retracted and the cargo handling arm 4 is rotated forward. While the front portion of the container C is lifted by the rotation of the cargo handling arm 4, the cargo handling arm 4 is drawn onto the subframe 50, and the cargo handling arm 4 is arranged horizontally on the subframe 50. Then, the container C is mounted on the sub-frame 50 by extending the cargo handling arm 4 forward by the extending operation of the telescopic hydraulic cylinder.

  Here, when the container C (container C1, container C2, or container C3) is loaded on the subframe 50 as described above, first, the body lock case 12 is attached to the bell crank 10 in the container length detection unit 9a. It is determined whether or not there is contact (step S1). Here, when the contact of the body lock case 12 is detected (step S1: Yes), the above-described control device that has received the detection signal determines that the container C1 has been loaded on the subframe 50, and the loading arm is loaded. 4 is stopped at a predetermined position, and the container C1 is placed at the normal storage position of the container C1 shown in FIG. 1 (step S2). When the bell crank 10 in the container length detection unit 9a does not detect the body lock case 12 (step S1: No), the process proceeds to step S3.

  Next, in step S3, a manual changeover switch (not shown) that switches the container C3 that does not have the plate-like member 13 to be handled as the container C3 that has the plate-like member 13 is turned on (switched). In the state (step S3: Yes), an operation signal is output from the control device, the container C3 storage alarm buzzer (not shown) is turned on (step S4), and an alarm sound is emitted. The process proceeds to S5 to determine whether or not the slide hydraulic cylinder is extended to the maximum. If it is not determined that the telescopic hydraulic cylinder has been extended to the maximum (step S5: No), step S5 is repeated until it is determined that the telescopic hydraulic cylinder has been extended to the maximum. When it is determined that the expansion / contraction hydraulic cylinder has been extended to the maximum (step S5: Yes), the process proceeds to step S6, the expansion / contraction operation of the expansion / contraction hydraulic cylinder is stopped, and the expansion / contraction hydraulic cylinder is placed in the normal storage position of the container C3. (See FIG. 3).

  Here, in step S3, a manual changeover switch (not shown) that switches the container C3 not having the plate-like member 13 to be handled as the container C3 having the plate-like member 13 is in the OFF state (switched). If not (step S3: No), the process proceeds to step S7. In step S7, when the plate-like member 13 of the container C3 is detected by the container length detection unit 9c (step S7: Yes), the process proceeds to steps S4 to S6 as described above, and the container length detection unit 9c When the plate-like member 13 of C3 is not detected (step S7: No), the process proceeds to step S8. Here, when it is not determined that the container C2 has been detected by the arm position detection unit 9b (step S8: No), step S8 is repeated. When it is determined that the container C2 is detected by the arm position detection unit 9b (step S8: Yes), the process proceeds to step S9, the sliding operation of the sliding hydraulic cylinder is stopped, and the container C2 is placed at the normal storage position. (See FIG. 2).

  Therefore, in the container length detection units 9a and 9c and the arm position detection unit 9b, the type (length) of the container C mounted according to the detection status of the proximity switch 11, the proximity switch 14, and the proximity switch 15 as detection sensors. The container C (container C1, container C2, or container C3) can be discriminated, the extension amount of the extension / contraction hydraulic cylinder is determined according to the determined length of the container C, and the cargo handling arm 4 is moved forward. It is possible to determine the placement position of the container C (container C1, container C2, or container C3) relative to the subframe. For this reason, even when containers C having different lengths are loaded, the gravity center positions 16a, 16b, and 16c of the containers C1, C2, and C3 on the subframe are maintained at substantially the same position (for example, a position suitable for balance of gravity center). Therefore, the running stability of the detachable container vehicle 100 can be maintained.

  Next, the case where the load loaded in the container C is discharged will be described.

  When the container length detection unit 9a determines that the container C mounted on the subframe 50 is the container C1, first, the cargo handling arm 4 is retracted to the maximum, and then the turning hydraulic cylinder is extended, The horizontal arm 3 and the cargo handling arm 4 are integrally rotated rearward, and the container C1 is tilted while supporting the bottom of the container C1 with the roller 6, so that the load in the container C1 can be used as a rear bumper of the chassis 1. The load can be discharged from behind without being covered. Further, when the arm position detection unit 9b and the container length detection unit 9c determine that the container C mounted on the subframe 50 is the container C2 or the container C3, the cargo handling arm 4 is not retracted and is rotated. The hydraulic cylinder is extended to horizontally rotate the horizontal arm 3 and the cargo handling arm 4 backward, and the container C2 or the container C3 is tilted while the container C2 or the bottom of the container C3 is supported by the roller 6, whereby the container C2 The load in the interior or the container C3 can be discharged from the rear of the chassis 1.

  As described above, in the detachable container vehicle 100 according to the present embodiment, the container length detectors 9a and 9c and the arm position detector 9b provided in the cargo handling device 2 and the containers C1, C2, and C3, The loading position and the container C position at the time of discharging the load can be automatically changed according to the types (lengths) of the containers C1, C2, and C3. Further, even when containers C1, C2, and C3 having different lengths are loaded, the center-of-gravity positions 16a, 16b, and 16c of the containers C1, C2, and C3 on the subframe 50 are set to substantially the same position (regardless of the length of the container C). For example, the position can be set to a position suitable for balance of the center of gravity), and the running stability of the detachable container vehicle 100 can be improved. Therefore, the containers C1, C2, and C3 having different lengths can be reliably mounted at appropriate positions on the subframe 50, and the containers C1, C2, and C3 can be safely and efficiently removed and discharged. Can be done.

  The embodiment of the present invention has been described above, but only a specific example is illustrated, and the present invention is not particularly limited, and the specific configuration and the like can be appropriately changed in design. Further, the actions and effects described in the embodiments of the invention are merely a list of the most preferable actions and effects resulting from the present invention, and the actions and effects according to the present invention are described in the embodiments of the present invention. It is not limited to what was done.

  For example, in the above-described embodiment, the proximity switch 14 is used to detect the plate-like member 13 in the container length detection unit 9c, but other detection devices such as a limit switch may be used instead of the proximity switch. . The same applies to the container length detection units 9a and 9b, and the type of the container C may be specified using various detection devices such as a photosensor.

  Moreover, in the arm position detection part 9b of the said embodiment, although the container C2 is detected by detecting the cargo handling arm 4 with the proximity switch 15, the proximity switch 15 detects the head part of the container C2. It is good also as what detects container C2.

1 chassis 2 cargo handling device 3 horizontal arm 4 cargo handling arm (second detected member)
5 Hook 6 Roller 7a, 7b, 7c Engagement part 8a, 8b, 8c Support roller 9a, 9c Container length detection part (1st, 3rd container length detection part)
9b Arm position detector (second container length detector)
10 Bell crank (tilting member)
11, 14, 15 Proximity switch (detection sensor)
12 Body lock case (first detected member)
13 Plate member (third member to be detected)
16a, 16b, 16c Center of gravity position 20 Container locking device 20a Claw portion 30, 31, 32 Main girder 40, 41 Prevention plate 50 Subframe 100 Removable container vehicle C1, C2, C3 Container

Claims (3)

A cargo handling device having a subframe provided on a chassis and a cargo handling arm that is pivotable back and forth with respect to the subframe, wherein the cargo handling arm causes at least a first container and a second longer than the first container A detachable container vehicle configured to be able to load and unload a container, a third container longer than the second container, between the subframe and the ground,
A first container length detector having a first detected member provided in the first container and a first detection sensor provided in the subframe and capable of detecting the first detected member. When,
A second container length detection unit provided at a front portion of the sub-frame and having a second detection sensor capable of detecting a leading portion of the second container or the cargo handling arm serving as a second detected member; ,
A third detected member provided in the subframe between a third detected member provided in a front portion of the third container and the first detected sensor to the second detected sensor. A third container length detector having a third detection sensor capable of detecting
A detachable container vehicle characterized by comprising: The first detected member is a protrusion protruding from the wall surface of the first container;
The first detection sensor is
A tilting member capable of tilting with an intermediate portion between the one end and the other end as an axis by contacting the first detected member to the one end;
In an initial state, the tilt member is close to the other end portion, and when the tilt member is tilted by the contact of the first detected member with the one end portion, the other end portion of the tilt member is A proximity switch for detecting contact of the first detected member with the tilting member by separating and detecting the position of the first container;
The detachable container vehicle according to claim 1, comprising: The third member to be detected is a plate-like member provided in a main beam extending in the front-rear direction at the bottom of the third container;
The third detection sensor is a proximity switch that reacts when the third detected member approaches, or a limit switch that detects that the third detected member comes into contact. The detachable container vehicle according to claim 1 or 2.

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