JP6189733B2 - Container carrier - Google Patents

Description

  The present invention relates to a container transport vehicle that can transport a long object such as wood.

  Conventionally, a loading arm that can move in the front-rear direction on the chassis and that can rotate in the same direction has been provided. By the operation of this loading arm, a long piece of wood is loaded onto the container on the chassis, and this container A timber transport vehicle that can transport timber by loading and unloading is known (see Patent Document 1 below).

Japanese Patent No. 4963096

  However, in the known timber transport vehicle, timber is stacked in cascade on a container that is loaded so as to be able to be loaded and unloaded on a chassis. When loaded in a container in tandem, the amount of overhang from the rear end of the pedestal of the timber becomes extremely long, and there is a problem that its transportation is substantially difficult.

  Therefore, the applicant of this application has made it possible to mount a long object such as wood over a long object carrier (container) and a fixed carrier, thereby solving the above problem. A transportation vehicle has already been proposed (Japanese Patent Application No. 2013-127267).

  The present invention relates to an improvement of such a container transport vehicle, and can be efficiently loaded at a predetermined position on a container and a fixed loading platform without being overloaded with long objects such as timber and can travel safely. The purpose is to provide a new container carrier.

In order to achieve the above object, the invention according to claim 1 is a cargo handling device having a cargo handling arm that is rotationally driven in the front-rear direction of the chassis, a fixed cargo platform provided in front of the cargo handling arm, and being able to be loaded and unloaded on the chassis. A container carrier equipped with a container for long objects,
A front support column provided with an engaged portion that can be engaged with and disengaged from an engaging portion provided on the cargo handling arm is erected in an intermediate portion in the vehicle width direction on the front side of the container for long objects. A center column is erected on the floor plate of the container for goods behind the front column.

  In order to achieve the above object, the invention of claim 2 is characterized in that, in the invention of claim 1, the central support column is located in the front-rear direction projection plane of the left-right width of the front support column. Yes.

  In order to achieve the above object, the invention of claim 3 is the invention of claim 1 or 2, wherein the central support column is closer to the front support column than the center in the front-rear direction of the floorboard of the container for long objects. It is characterized by providing.

  According to the first aspect of the present invention, it is possible to guide the long object to the predetermined loading position with the front support column and the central support column to prevent the long object from being overloaded, and to make the container transport vehicle safe. It can be run.

  According to the second aspect of the present invention, since the central support column is located in the front-rear direction projection plane of the left and right width of the front support column, parallel loading of long objects in the traveling direction of the container transport vehicle is easy. is there.

  According to the invention of claim 3, since the central part support is provided closer to the front support than the center in the front-rear direction of the floorboard of the long object container, the latter half of the long object container is connected to the center support post. It can be effectively used for loading other than long items.

Perspective view of container carrier 2 arrow view of FIG. 3 arrow view of FIG. Enlarged view of the phantom line encircled portion shown in FIG. Sectional view along line 5-5 in FIG. Side view of container truck showing the state of container dump Side view of a container transporter showing the state during the unloading of the container Side view of container transporter showing container unloading completion (A) Side view of container transport vehicle showing a state in which a long object is loaded on a container and a fixed carrier, (B) Side view of container transport vehicle showing a state in which a long object is unloaded from the container and the fixed carrier. Control block diagram of control device Flow chart of control device

  An embodiment of the present invention will be described with reference to FIGS.

  In the following description, the front and rear in the traveling direction of the container transport vehicle V are “front and rear”, the upper and lower are “up and down”, and the left and right are “left and right”.

  1 and 2, the container transport vehicle V is a four-wheel drive vehicle in which both front and rear wheels are driven, and is used for a long object that can be loaded and unloaded on the chassis 1 on the chassis frame F. A container 2, a cargo handling device 3 for loading and unloading the container 2, and a fixed cargo platform 4 fixed on the chassis 1 are provided.

  First, the structure of the long object container 2 will be described with reference to FIGS.

  The long object container 2 includes a rectangular subframe 10 that is long in the front-rear direction of the chassis 1 and a floor plate 11 that is laid on the upper surface of the subframe 10, and the left and right side surfaces, the upper surface, and the rear surface are open. Has been. A front support column 12 extending in the vertical direction is erected integrally at the center of the front surface of the subframe 10 in the left-right direction (vehicle width direction). The front support column 12 has a U-shaped cross section with a front opening and is formed in a bar shape that is long in the vertical direction. Further, an engaged portion 13 made of a pin is fixed laterally at the upper end of the front column 12, and the engaged portion 13 is provided at the upper end of a hook arm 26 of the cargo handling device 3 to be described later. The engaging portion 27 made of a hook can be engaged and disengaged.

  A plurality of pairs (three pairs) of side stanchions 15 are provided symmetrically on the left and right side surfaces of the floor board 11 at intervals in the front-rear direction. These side stanchions 15 extend substantially vertically along both side surfaces of the floor board 11 and prevent the long object W such as wood loaded on the container 2 from rolling down to the side.

As shown in FIG. 3, a single column-shaped central column column 19 is provided on the center axis L ₁ -L _{1 in} the front-rear direction of the floor board 11 and in front of the center C, that is, closer to the front column 12. It stands upright in the vertical direction. The central support column 19 is located behind the front support column 12 in the front-rear direction and is formed higher than the front support column 12. In this embodiment, the center support column 19 is in the front-rear direction projection plane of the left-right width (width in the vehicle width direction) D of the front support column 12, and the long object container 2 is connected to the container transport vehicle V. In the loading completion state, the central axis in the left-right direction (vehicle width direction) passing through the center S in the front-rear direction of the vehicle from the front edge of the floor surface 42 of the fixed carrier 4 to the rear edge of the floor plate 11 of the long container 2 It is located in front of L ₂ -L ₂ .

  And this center part support | pillar 19 cooperates with the front part support | pillar 12, and prevents overloading, such as slanting piles of the long objects W, such as a timber, especially in the advancing direction of the container carrier of the long object W. Facilitates parallel loading.

The front end of the left and right vertical frames 10 ₁ of subframe 10 of the elongated article container 2, the front end surface of the floor plate 11 protrudes forward, the front end of the left and right vertical frames 10 _1, fitting female portion 14 Are integrally provided. As shown in FIG. 2, the fitting female portion 14 is formed in a long sheath shape in the front-rear direction with the front face opened, and when the container 2 is loaded on the chassis 1, the fitting female portion 14. The fitting male part 7 fixed to the front left and right of the chassis 1 is fitted into the chassis 1, and the front end of the container 2 can be secured to and supported by the chassis 1.

  As shown in FIGS. 1, 4, and 5, brackets 9 are fixed to the left and right of the rear end of the long object container 2, respectively. 17 are each supported. The rotating shaft 16 a of the ground roller 16 is rotatably supported on the bracket 9 with an axis perpendicular to the loading / unloading direction of the container 2, and the ground sled 17 is supported by the bracket 9 on the rotation of the ground roller 16. It is supported so as to be swingable about a swinging shaft l7a coinciding with the shaft 16a. The lower part of the grounding roller 16 projects downward from the grounding surface of the grounding sled 17 through a window hole 17 b opened in the grounding sled 17. Further, the center of gravity G of the grounding sled 17 is located almost directly below the swing shaft 17a, and the grounding sled 17 is in a substantially horizontal state, that is, substantially parallel to the floor surface 11 of the container 2 in its free state. Retained. The grounding surface of the grounding sled 17 is a flat surface, and a curved surface 17c that warps toward the rear end side is formed at the rear end portion.

  When the container 2 is tilted rearward and the lower end of the container is landed on the ground, the ground roller 16 and the ground sled 17 are both grounded. As the container 2 is lowered, the ground roller 16 is rotated. On the other hand, the ground sled 17 swings in the front-rear direction and slides on the ground, so that the container 2 can be smoothly lowered onto the ground.

  The lower part of the grounding roller 16 protrudes downward through the window hole 17b of the grounding warp 17 so as to be grounded on the ground regardless of the swinging position of the grounding warp 17.

  As shown in FIGS. 6-8, the said cargo handling apparatus 3 is comprised so that the said container 2 for elongate objects may be dump-actuated or may be loaded and unloaded between the chassis 1 and the ground, and in the rear part of the chassis 1 A dump arm 20 whose base end portion (rear end portion) is pivotally supported 21 so as to be rotatable in the front-rear direction, and a base end portion (rear end portion) on the front end portion (front end portion) side of the dump arm 20 is a chassis 1. The cargo handling arm 22 is pivotally supported 23 so as to be pivotable in the front-rear direction, an intermediate portion of the cargo handling arm 22, and a lift cylinder 24 connected between the front portion of the chassis 1. The cargo handling arm 22 is configured by fitting a hook arm 26 having an engagement portion 27 attached to a tip end portion (upper end portion) and a lift arm 28 so as to be extendable and contractible with each other. 28 is expanded and contracted by a slide cylinder 29 connected between them. And between the dump arm 20 and the cargo handling arm 22, there is provided a conventionally known securing means (not shown) for securing them in a straight line.

  As shown in FIGS. 1 to 3, when the cargo handling device 3 is installed on the chassis 1 of the container transport vehicle V and the container 2 is loaded on the chassis 1, the fitting male portion 7 on the chassis 1 side. Is fitted into the fitting female portion 14 on the container 2 side, and the front portion of the container 2 is firmly fixed on the chassis 1.

  The hook arm 26 of the cargo handling arm 22 of the cargo handling device 3 is in front of the front column 12 of the container 2, and the engaging portion 27 at the upper end of the hook arm 26 is the tip of the front column 12 of the container 2. The container 2 is stably supported on the chassis 1 and is dumped backward by the operation of the cargo handling device 3 or between the chassis 1 and the ground, as will be described later. Can be loaded and unloaded. And between the front surface of the container 2 and the rear surface of the fixed carrier 4 described later, left and right openings 32 and 33 are formed on the left and right sides of the front support column 12 so as to open to the outside. Moreover, the long object container 2 can shorten the protrusion amount from the rear end of the container transport vehicle V by forming the full length in the front-rear direction shorter than the full length of the chassis 1.

  The fixed carrier 4 is provided in front of the chassis 1 with the left and right openings 32, 33 in front of the long object container 2, and is fixed on a support 40 fixed to the front of the chassis 1. A floor plate 42 is laid and formed into a rectangular shape that is long in the vehicle width direction (left-right direction) in plan view. Due to the support base 40, the upper surface of the floor surface 42 of the fixed carrier 4 is made to coincide with the upper surface of the floor surface 11 of the container 2. A shielding wall 44 is erected on the front portion of the fixed carrier 4. The shielding wall 44 is formed in a channel shape in plan view so as to cover the front surface of the fixed carrier 4 and the front portions of the left and right side surfaces thereof, and covers the rear surface of the driver's seat CA of the container transport vehicle V. The long object W loaded on the V is prevented from coming into contact with the driver's seat CA, and the front part of the long object W loaded on the fixed carrier 4 is aligned with the loading position. It is useful for. A pair of side stanchions 15 are provided symmetrically and integrally in the middle part in the front-rear direction of the left and right side surfaces of the floor plate 42 of the fixed carrier 4, and the long object W loaded on the fixed carrier 4 is I try not to roll it down to the side.

  As shown in FIGS. 2 and 10, a control device 50 that controls the operation of the cargo handling device 3 is provided at an appropriate location in the driver's seat CA of the container transport vehicle V. The control device 50 includes a main switch 51, a changeover switch 52, and an operation switch 53, and the operation switch 53 includes a dump switch 54 and an unloading switch 55. Input signals from these switch groups are input to the control device 50, and output signals from the control device 50 control the operation of the lift cylinder 24 and the slide cylinder 29 of the cargo handling device 3.

  In the flowchart of the control device 50 in FIG. 11, when the changeover switch 52 is switched to the “long side”, the cargo handling device 3 is not operated even if the operation switch 53 (the dump switch 54 and the unloading switch 55) is operated. In addition, when the changeover switch 52 is switched to the “normal side”, the cargo handling device 3 is controlled so that a normal operation is possible.

  Next, the operation of this embodiment will be described.

  When carrying a load such as a short material other than the long long object W or a chip by the long object container 2, the changeover switch 52 of the control device 50 is switched to the “normal side”.

(1) “When dumping container 2 on chassis 1”
If the changeover switch 52 of the control device 50 is switched to the “normal side” and the dump switch 54 of the cargo handling device 3 is turned on, the container 2 is placed on the chassis 1 as shown in FIG. The load on the container 2 can be discharged to the ground by dumping the rear of the chassis 1 from the reference). Specifically, the relative rotation of both arms 20 and 22 is regulated by the securing operation of a securing means (not shown) provided between the dump arm 20 and the cargo handling arm 22 to fix them in a straight line. When the lift cylinder 24 is extended in the tied state, the container 2 in which the engaged portion 13 at the upper end of the front column 12 is engaged with the engaging portion 27 at the upper end of the hook arm 26 is It is possible to dump cargo (excluding long objects such as wood) loaded on the container 2 to the rear of the container transport vehicle V, which is dumped by being tilted rearward and loaded on the container 2. it can. When the lift cylinder 24 is contracted, the container 2 can be lowered and lowered onto the chassis 1.

(2) “When unloading container 2 on chassis 1”
If the changeover switch 52 of the control device 50 is switched to the “normal side” and the unloading switch 55 of the cargo handling device 3 is turned ON, the container 2 is loaded and unloaded between the chassis 1 and the ground and loaded onto the container 2. Loads such as short objects and chips (excluding long objects such as wood) can be dropped to the ground.

  As shown in FIG. 7, the hook arm 26 is horizontally moved to the rear side of the container carrier V with respect to the lift arm 28 by the contraction operation of the slide cylinder 29 (FIG. 7, a chain line position). When the lift cylinder 24 is extended in a state in which the operation is released and the dump arm 20 and the cargo handling arm 22 are relatively rotatable, the cargo handling arm 22 composed of the lift arm 26 and the hook arm 28 has 23 pivot points. It pivots backward as the center. As a result, the container 2 moves backward on the chassis 1.

  According to the continued extension of the lift cylinder 24, the ground roller 16 and the ground sled 17 at the rear end of the container 2 are grounded, and the ground roller 16 is rotated on the ground by the subsequent stretching operation of the lift cylinder 24. 17 slides on the ground while swinging so as to follow the ground, and the container 2 tilts backward with the rotating shaft 16a of the grounding roller 16 and the swinging shaft 17a of the grounding sled 17 as fulcrums.

  When the grounding sled 17 is grounded on the ground, it can swing freely around its swinging shaft 17a in response to a reaction force from the ground, so that the place where the container 2 is lowered is irregular such as uneven ground or soft ground. Even if it is a ground or a muddy ground, it can freely swing so as to follow the ground, and the ground contact surface of the ground sled 17 can always be in surface contact with the ground. It is possible to secure a larger area in contact with the ground than such line contact, and it is possible to smoothly slide on the ground without being recessed into the ground.

  As shown in FIG. 8, when the lift cylinder 24 continues to be extended, when the cargo handling arm 22 reaches the rearward rotation position, the hook arm 26 is directed downward and the container 2 is lowered to the ground. If the engaging portion 27 at the tip of the hook arm 26 is removed from the engaged portion 13, the container 2 is separated from the cargo handling arm 22, and the container 2 can be attached and detached smoothly.

  And the said load (except long objects, such as a timber) can be loaded / unloaded between the container 2 and the ground.

(3) “When loading container 2 that has been lowered to the ground onto chassis 1”
After the container transport vehicle V is stopped in tandem at an appropriate interval in front of the container 2 that has been lowered to the ground, the cargo handling arm 22 is fully rotated around the pivotal support 23 to the rearward rotation position. Similarly to the case where the engaging portion 27 made of the hook of the hook arm 26 is engaged with the engaged portion 13 of the front column 12 and the cargo handling arm 22 is rotated forward, the grounding roller 16 is lowered. Rolls on the ground, the grounding sled 17 slides smoothly on the ground, the container 2 is loaded on the chassis 1 and moves forward, and the hook arm 26 is moved to the front end by the extension operation of the slide cylinder 29. After moving to the position, as shown in FIGS.

  As shown in FIGS. 1 and 2, the fitting female portion 14 at the front end of the container 2 is fitted into the fitting male portion 7 on the chassis 1, and the front portion of the container 2 is secured and supported on the chassis 1. can do.

  The container transport vehicle V is capable of transporting long and long objects that are difficult to transport with conventional container transport vehicles.

  In this embodiment, a long object W such as a long timber (3.6 m or more) to be processed into a square for construction is loaded and transported, and in particular, the transport amount of the long object W In order to increase the number of the long objects W, the plurality of long objects W can be transported in a state where the long objects W are vertically arranged in the vertical direction, and the transport amount can be increased. The storage space when the container 2 is not used can be narrowed by setting the length in the front-rear direction of 2 short.

(4) “When transporting a long object W such as wood across the fixed carrier 4 and the container 2 on the chassis 1”
In this case, the changeover switch 52 of the control device 50 in the driver's seat CA switches to the “long side” and prohibits the operation of the cargo handling device 3.

  As shown in the chain line in FIGS. 1 to 3, on the container transport vehicle V, a long object W (such as a plurality of timbers felled from a mountain across the fixed carrier 4 and the long object container 2 ( 3.6 m or more) are stacked in a line in the vertical direction. As shown in FIG. 9 (A), without depending on the cargo handling device 3, the long object W is pulled from a storage place on the ground by another cargo handling machine (not shown) such as a crane, and the rope R such as a rope. The plurality of long objects W are cascaded two by two and loaded across the fixed carrier 4 and the container 2. At this time, the side stanchion 15 prevents the long object W from rolling down and facilitates its loading.

  In addition, since the front column 12 and the central column 19 are vertically arranged in the front-rear direction in the container 2, the central column 19 and the front column 12 allow the long object W to be It is possible to prevent overloading such as oblique stacking (FIG. 3, one-dot chain line), and the container transport vehicle can be run safely.

  A plurality of long objects W stacked in cascade across the fixed carrier 4 and the container 2 are appropriately secured to the container 2 by a rope such as a rope (not shown). The container transport vehicle V loaded with a large number of long objects W is transported to a processing place for the long objects W.

  The long objects W may be stacked on the container 2 without being lined up two by two.

(5) “When long objects W such as wood on chassis 1 are lowered”
Also in this case, the changeover switch 52 of the control device 50 remains switched to the “long side”.

  As shown in FIG. 9 (B), the long object W transported to the destination by the traveling of the container transport vehicle V does not depend on the operation of the cargo handling device 3, and the rope or the like is used by another cargo handling machine such as a crane. It is lifted by the rope R and lowered from the chassis 1 to the ground such as a processing plant.

  And according to this embodiment, since the center part support | pillar 19 is located in the front-back direction projection surface of the left-right width (width | variety of a vehicle width direction) D of the front support | pillar 12, the container conveyance of the elongate thing W is carried out. Parallel loading in the traveling direction of the vehicle V is easy, and the center column 19 is provided closer to the front column 12 than the center of the floor plate 11 of the long object container 2 in the front-rear direction. The second half of the container 2 can be effectively used for loading a load other than the long object W without being affected by the central column 19.

Further, as shown in FIG. 3, the center column 19 supports the long object container 2 from the front edge of the floor 42 of the fixed carrier 4 when the long object container 2 has been loaded into the container transport vehicle V. Since the vehicle is located in front of the center axis L ₂ -L _{2 in the} left-right direction (vehicle width direction) passing through the center S in the front-rear direction of the vehicle up to the rear edge of the floor plate 11, the long object W is fixed. When two pieces are stacked in parallel between the loading platform 4 and the long object container 2, the long object W is spread over the entire area of the latter half of the long object container 2 without being affected by the central column 19. Can be loaded.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to that embodiment, A various embodiment is possible within the scope of the present invention.

  For example, in the above-described embodiment, the center column 19 has a height dimension higher than that of the front column 12, but the height dimension of the center column 19 is appropriately determined according to the shape of the load and the load amount. What is necessary is just to change, and the height dimension substantially equivalent to the front support | pillar 12 and a dimension lower than the front support | pillar 12 may be sufficient. Moreover, you may provide the multiple center part support | pillar 19 in the back of the left end of the elongate container 2, and the back of the right end.

  Furthermore, the container loading / unloading may be performed using a winch, a sliding slide of an inclined frame (for example, Japanese Patent No. 3648075), or other conventionally known container loading / unloading means.

DESCRIPTION OF SYMBOLS 1 ..... chassis 2 ..... container for long objects 3 ...... cargo handling device 4 ......... 11 ······························ 12 Post 22 ... Handling arm 27 ... Engagement section C ... Center (of floor plate 11)
D · · · · · · width in the vehicle width direction (front strut 12)

Claims (3)

A cargo handling device (3) having a cargo handling arm (22) that is rotationally driven in the front-rear direction of the chassis (1), a fixed cargo platform (4) provided in front of the cargo handling arm (22), and the chassis (1) A container for a long object (2), which is mounted so as to be able to be loaded and unloaded,
An engaged portion (13) that can be engaged with and disengaged from an engaging portion (27) provided on the cargo handling arm (22) is provided at an intermediate portion in the vehicle width direction on the front side of the container for long objects (2). A front column (12) is erected, and a central column (19) is erected on the floor plate (11) of the long container (2) behind the front column (12). A container carrier characterized by that.   2. The container transport vehicle according to claim 1, wherein the central support column (19) is located in a front-rear direction projection plane of a left-right width (D) of the front support column (12).   The center column (19) is provided closer to the front column (12) than the center (C) in the front-rear direction of the floor plate (11) of the container (2) for long objects, The container carrier according to claim 1 or 2.

Images