JP2020062973A - Transport operating machine - Google Patents

Abstract

To provide a transport operating machine which enables containers on a loading platform to be stably loaded and smoothly performs operation of discharging the containers from the loading platform to improve work efficiency.SOLUTION: A transport operating machine 1 includes: travel devices 3 which are disposed at left and right sides of a machine casing with respect to a travel direction while making a pair; and a loading platform part 4 which is located above the travel devices 3, may incline around a rotation supporting point axis 414, and has a loading platform surface 41 on which loads are placed. Further, the transport operating machine 1 includes: multiple roller members 43 each having a rotation outer diameter protruding to the load side relative to the loading platform surface 41; an operating part 6 for operating the travel devices 3 and the loading platform part 4; and engagement bodies 5 which are disposed below the loading platform part 4 and may protrude from the loading platform surface 41 to the load side so as to engage with the loads on the loading platform surface 41.SELECTED DRAWING: Figure 1

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport work machine capable of loading a container for storing harvested agricultural products, and more particularly to a transport work machine suitable for fixing the loaded container and unloading the container.

  In recent years, agriculture has been proposed to be integrated and large-scaled, and along with this, improvement of work efficiency is required. The same is true for the harvesting work, where it is required to concentrate the harvested products in large containers and then transport them to other places. The container is a large container suitable for being carried by a working machine having a forklift and other claws and a fork portion, and it is required to store and move agricultural products in this container. On the other hand, there is a shortage of human resources involved in agricultural work, and the number of workers who operate equipment related to agricultural work is insufficient, so that they cannot work efficiently.

On the other hand, as a device for carrying work, a dolly for carrying containers described in Patent Document 1 is disclosed. In this container transporting trolley, a container fixing piece is projected above the upper surface of an upper frame forming a loading platform for loading containers, and the container fixing piece holds the periphery of the container placed on the upper surface of the loading platform. Then, when the upper frame is raised, the container fixing piece retracts from the upper surface of the upper frame to release the fixing of the container.
Further, Patent Document 2 discloses a dump carrier device for a power carrier. This device dumps a cargo bed and discharges a load on the cargo bed.

Jitsubo 3127597 Japanese Utility Model Publication No. 5-46673

However, the dolly for carrying a container described in Patent Document 1 requires manpower and equipment when the container is unloaded. Further, when using the above-mentioned large container, manpower and equipment for moving the container-carrying cart to another place are required, which causes a problem of poor work efficiency.
Further, even if a large container is loaded on the loading platform of the power carrier described in Patent Document 2 and the container is slid from the loading platform and discharged, there is a problem in that the discharge cannot be smoothly performed due to friction on the loading platform.

  Therefore, the present invention has been made in view of the above-mentioned problems, and it is possible to stably load a container on a loading platform and smoothly perform a discharging operation of the container from the loading platform, thereby improving work efficiency. The purpose is to provide a working machine.

  In order to achieve the above object, one aspect of the present invention is to provide a traveling device that is arranged in a machine frame in pairs on the left and right with respect to a traveling direction, and a rotation fulcrum shaft that is located above the traveling device. A loading platform having a loading surface on which a load can be placed, and a plurality of roller members each having a rotation outer diameter on the loading side from the loading surface and running An operating part for operating the device and the loading platform, and a plurality of locking units arranged below the loading platform that can project from the loading platform toward the loading side to lock the loading on the loading platform The gist of the present invention is that it is a transport work machine equipped with a body.

  According to the present invention, it is possible to provide a transport work machine capable of stably loading a container on a cargo bed and smoothly discharging a container from the cargo bed to improve work efficiency.

It is a front view of the haulage machine which is an embodiment of the present invention. FIG. 2 is a cross-sectional plan view taken along the line AA shown in FIG. 1 of the transport work machine that is the embodiment of the present invention. FIG. 3 is a sectional front view in which the container of the transport work machine according to the embodiment of the present invention is tilted and the cross section is taken along line BB in FIG. 2 and the container is omitted. FIG. 3 is a cross-sectional front view in which the container of the transport work machine according to the embodiment of the present invention is tilted and the tilting section is released from the fixation, and the section is taken along the line BB in FIG. 2 and the container is omitted. FIG. 3 is an enlarged view of a section of the transport work machine according to the embodiment of the present invention taken along the line BB in FIG. 2, in which the container is omitted and the locking portion and the vicinity of the locking portion are enlarged.

Next, an embodiment of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts may be denoted by the same or similar reference numerals. The drawings used for the description are schematic, and the relationship with the dimensions of each part may differ from the actual ones.
Further, the technical idea of the present invention can be modified in various ways within the technical scope defined by the claims described in the claims.

1 to 5 show a transport work machine 1 according to an embodiment of the present invention.
In the description, the left side of FIG. 1 will be described as the front in the traveling direction, the right side as the rear of the traveling direction, the upper side of FIG. 2 as the right side with respect to the traveling direction, and the lower side as the left side with respect to the work reverse direction.

  The transport work machine 1 shown in FIG. 1 is provided with traveling devices 3 on the left and right in the traveling direction of the machine frame 2, and above the machine frame 2 and the traveling device 3 is provided a cargo bed section 4 having a tiltable cargo bed surface. ing. The load is carried on the loading surface 41 by moving the load on the loading surface 41 and using the traveling device 3. The loading platform 4 can incline the loading surface 41, and by inclining, the loaded object can be slid down along the inclined surface. A locking body 5 is provided on the loading platform 4 so as to project from the loading surface, and the locking body 5 can be projected or retracted from the loading surface in conjunction with the inclination of the loading surface 41. I have to. By this locking body 5, it is possible to regulate and release the movement of the load on the bed surface. Further, an operation unit 6 and a power source 7 are provided behind the load platform 4, and an operator operates the operation unit 6 to output the power source 7, adjust the speed of the traveling device 3, and adjust the load unit 4. Inclination operation is possible. Further, the load on the loading surface 41 is the container C, and the container C accommodating the agricultural products harvested from the field can be moved by loading the transport work machine 1.

The transport working machine 1 will be described in detail.
The transport work machine 1 includes a machine frame 2. The machine frame 2 serves as a mounting base of a traveling device 3 and a luggage carrier 4 which will be described later, and a plurality of members are combined in a lattice shape and arranged in the front-rear direction.
Traveling devices 3 are provided on the left and right sides of the machine frame 2 in the traveling direction, respectively. The traveling device 3 has a driving wheel 31 and a driven wheel 32 in front of the traveling direction, and a crawler belt 33 so as to wind the driving wheel 31 and the driven wheel 32. When the drive wheel 31 is driven to rotate, the crawler belt 33 rotates around the drive wheel 31 and the driven wheel 32 to move the transport work machine 1 back and forth. Further, when the crawler belts 33 of the traveling device 3 arranged on the left and right of the machine frame 2 are driven with different rotational speeds, the turning movement to the left and right is also possible. Further, a roller wheel 34 is arranged between the drive wheel 31 and the driven wheel 32, and is rotatably attached so that the crawler belt 33 grounded on the ground is not largely bent.
Although the traveling device 3 has been described as having the crawler belt 33 in the embodiment, it may be provided with a plurality of wheels in place of the drive wheel 31, the driven wheel 32, the rolling wheels 34, and the crawler belt 33.

  A loading platform 4 is arranged above the machine casing 2 and the traveling device 3. The loading platform 4 includes a loading platform surface 41, a driving means 42, a roller member 43, and a tilt portion 44.

  The loading surface 41 is a plate-shaped member, and a container C, which is a load, can be loaded on the upper surface. A cargo bed base 411 in which a plurality of members are arranged in a grid is fixed to the lower surface of the cargo plane 41 to reinforce the cargo plane 41 and function as a base of the cargo plane 41. Attachment members 412 formed of a triangular member are fixed to the lower part of the base 411 of the loading platform at the center with respect to the front-rear direction and to the left and right of the traveling direction. The mounting member 412 has a triangular surface in the front-rear direction, and the rotation fulcrum shaft 414 is passed through the mounting member 412 and a fulcrum member 413 projecting from the upper part of the front side of the machine frame 2. The rotation fulcrum shaft 414 is attached to the right and left, which is orthogonal to the traveling direction, and the cargo bed 4 is rotatable around the rotation fulcrum shaft 414 in the vertical direction.

  A drive means 42 for rotationally driving the luggage carrier base 411 is attached to the lower rear portion of the luggage carrier base 411. The drive means 42 is a telescopic cylinder, one end of which is a mounting member 421 near the center of the machine frame 2 near the left and right center, and the other end of which is a load platform base 411 on the rear side of the rotation fulcrum shaft 414. Each of the mounting members 422 is rotatably mounted. Then, by expanding and contracting the driving means 42, the loading surface 41 and the loading base 411 can be rotated and tilted. The luggage carrier surface 41 and the luggage carrier base 411 are gradually inclined with the rotation fulcrum shaft 414 as a fulcrum so that the rear side rises as the rotation advances due to the extension of the driving means 42. When the drive means 42 is shortened, the load carrier surface 41 and the load carrier base 411 that have risen upward are lowered while gradually sloping, and are lowered in the horizontal direction, that is, parallel to the machine casing 2. The rear end of the cargo bed surface 41 in the horizontal state is located above the central portion of the machine frame 2, and the front end of the cargo bed surface 41 is located in front of the front end of the machine frame 2 and in front of the traveling device 3. Further, the cargo bed surface 41 is configured to be located differently between the traveling devices 3 and 3.

  A plurality of rectangular holes are provided on the loading surface 41, and the roller member 43 is installed so as to be located in each of the holes. The roller member 43 is a cylindrical member and is rotatably attached to the luggage carrier base 411 with the cylindrical direction as an axis. A part of the radius of rotation of the plurality of roller members 43 provided is arranged so as to protrude upward from the luggage carrier surface 41, and is provided in parallel with the rotation fulcrum shaft 414 of the luggage carrier unit 4. In the embodiment, the roller members 43 are arranged side by side at each of the left and right ends of the luggage carrier surface 41 in the traveling direction, and an object placed on the roller member 43 can move in the front-back direction of the luggage carrier surface 41. Further, the amount by which the turning radius protrudes upward from the cargo bed surface 41 is set to about 10 to 20% of the turning radius or about 3 to 6 mm.

  The container C, which is a load loaded on the roller member 43, can be smoothly moved in the front-rear direction of the luggage carrier surface 41 by the rotation of the plurality of roller members 43 provided on the luggage carrier surface 41. Further, when the loading surface 41 is rotated upward and the loading surface 41 is tilted, the container C loaded on the roller member 43 can move downward along the tilt by its own weight.

  Here, the container C loaded on the loading surface 41 will be described. The container C used in this embodiment is a container that mainly stores agricultural products, and in particular, it stores agricultural products harvested in fields, moves to another place with a forklift while storing agricultural products, and stores agricultural products. It is used to store in storage, etc. as it is stored. Although there are differences in detailed shape depending on the manufacturer, the container C used for systematic farming work, harvesting work, storage of harvested products, etc. is roughly similar in size and shape, so an example will be described. .

  The container C is composed of a leg portion C1 and a housing portion C2. The accommodating portion C2 is a rectangular parallelepiped box shape having a mesh member on each side surface, and the leg portions C1 are columnar members and are arranged in the vicinity of the outer periphery of the lower surface of the accommodating portion C2 with the orientation of the pillars perpendicular to the lower surface of the accommodating portion C2. I am letting you. Plates C1a are arranged and fixed to the lower surfaces of the plurality of legs C1 in a ladder shape so as to bridge the legs C1. The plate C1a disperses the ground contact pressure when the container C contacts the ground or the bed surface 41. The height of the leg portion C1 is set higher than the height of the claws of a forklift or the like. Then, the container C placed on the loading surface 41 or on the ground has a gap between the container C2 and the accommodating portion C2, and thus a claw such as a forklift can be inserted into the gap to lift the container C. After that, the container C can be moved to another place.

  Now, when the above-mentioned container C is loaded on the loading surface 41, it will be positioned on the roller member 43. When the loading surface 41 is tilted in this state, the container C is slidably moved downward by the roller member 43 via the plate C1a. Further, the container C moves to the ground by passing through the tilting portion 44 provided in front of the loading surface 41. The tilting portion 44 is a rectangular member in a plan view, which is installed so as to extend the loading surface 41 forward, and is a rotary shaft 441 provided at the front end of the loading surface 41 in the left-right direction orthogonal to the traveling direction. Thus, it can be rotated in the vertical direction with respect to the cargo bed surface 41.

  The tilting portion 44 is formed in a rectangular shape that is long in the front-rear direction in the front view shown in FIG. Further, in the front view shown in FIG. 1, a part of the lower portion on the rear side of the tilt portion 44 is provided with a restricting member 442 protruding rearward, and the restricting member 442 contacts the lower part of the front end of the luggage carrier base 411. By doing so, the tilting portion 44 is restricted from rotating downward, and the upper surface of the tilting portion 44, which is restricted from rotating downward, is set to be parallel to and flush with the luggage carrier surface 41. . That is, the tilt portion 44 can rotate only in the upward direction from the state parallel to the luggage carrier surface 41, and rotates in the direction opposite to the direction in which the luggage carrier surface 41 is inclined.

  L-shaped pins 443 that fix and release the posture of the tilt portion 44 when the tilt portion 44 rotates are provided on the front end portions of the luggage carrier surface 41 on both left and right sides in the traveling direction of the tilt portion 44. The pin 442 can slide a holder portion 445 provided on the front surface of the luggage carrier base 411 in the left-right direction, and can be inserted into a plurality of holes 444 provided on the left and right side surfaces of the tilt portion 44. By inserting the pins 442 into the positions of the respective holes 444, the surface of the tilt portion 44 can be fixed at the respective angles by changing the inclination angle to the parallel state or the vertical state with the luggage carrier surface 41. Further, by pulling out the pin 443 from the hole 444, the posture of the tilt portion 44 can be released from being fixed, and in this case, the tilt portion 44 can freely rotate in the vertical direction.

As shown in FIG. 3, the tilting portion 44, which is parallel to the luggage carrier surface 41 and whose posture is fixed by the restricting member 442 and the pin 443, also functions as a luggage carrier surface extended to the front side. The tilting portion 44 allows the container C having a size larger than the loading surface 41 to be loaded.
Further, the front end portion of the tilt portion 44 comes into contact with the ground due to the inclination of the bed surface 41. As a result, the container C can be moved directly from the loading platform to the ground via the tilting portion 44, and the container C is prevented from directly dropping from the front end of the loading platform surface 41 to the ground. The container C slides down due to its own weight, and after passing through the tilt portion 44, the lower front end of the container C contacts the ground. After that, when the transport work machine 1 is retracted by the traveling device 3, the container C moves completely to the ground.

  If the container C cannot be completely removed from the loading surface 41, the pin 442 fixing the tilt portion 44 is removed to make it rotatable. Thereafter, when the loading surface 41 is further tilted, as shown in FIG. 4, the front end of the tilt portion 44 is in contact with the ground and is inclined with respect to the loading surface 41. Since the inclination angle of the loading surface 41 increases, the movement of the container C from the loading surface 41 to the ground is assisted. Further, by tilting the loading surface 41 and grounding the front end of the tilt portion 44, the container C slides down through the tilt portion 44, and the lower portion of the front end of the container C contacts the ground. After that, when the transport work machine 1 is retracted by the traveling device 3, the container C moves completely to the ground.

  The tilting portion 44 can be fixed in a vertically standing state. In this state, the container C can be prevented from slipping out in front of the loading platform 4. Further, when the tilting portion 44 is not used for movement or the like, the dimension of the transport working machine 1 can be shortened by fixing it in a vertically standing state and folding it.

  The container C can be moved by the roller member 43 when the loading platform 4 is not tilted and the tilting portion 44 is not fixed in a state of standing vertically to the loading platform surface 41. A locking body 5 is provided to regulate this movement.

  The locking bodies 5 are columnar members, and a plurality of locking bodies 5 are arranged side by side in the left-right direction orthogonal to the traveling direction so as to project upward from the machine frame 2. In the embodiment described, the locking body 5 is a square pipe, but the cross-sectional shape does not matter as long as it has a columnar shape. A tip portion 51 of the upper portion of the locking body 5 projects upward from a hole portion 52 provided on the rear side of the luggage carrier surface 41 that is in a parallel state with the machine frame 2. In the embodiment, the locking body 5 is set so as to project from the central portion of the machine frame 2 at two positions on the left and right sides of the rear surface of the luggage carrier surface 41. The tip portion 51 of the locking body 5 projects upward from the hole portion 52 arranged in front of the leg C1 and the plate C1a located at the rear of the container C.

Further, a locking member 53 is fixed to the rear end of the loading surface 41 from the rear end surface upward. The locking member 53 is a member in which a plurality of rod-shaped and band-shaped members are arranged in a plurality of grids, respectively, and is fixed to the luggage carrier surface 41. Therefore, the locking member 53 rotates up and down with the rotation fulcrum shaft 414 as a fulcrum with the inclination of the luggage carrier surface 41.
That is, when the loading surface 41 is horizontal, the leg C1 and the plate C1a on the rear side of the container C are sandwiched between the front end 51 of the locking body 5 located on the front side and the locking member 53 located on the rear side. Will be arranged as follows. Further, the locking body 5 located on the front side of the leg C1 on the rear side of the container C and the plate C1a is located on the left and right ends of the leg C1 and the plate C1a, respectively.
With this configuration, the container C restricts the movement in the front-rear direction and the left-right direction and the rotational movement around the normal line direction of the loading surface 41 by the locking body 5 and the locking member 51. Further, if the above-mentioned tilting portion 44 surface is erected, the number of members that restrict the movement together with the locking body 5 and the locking member 51 increases, so the safety is further improved.

  The locking body 5 in the case where the loading platform surface 41 is inclined will be described. Since the locking body 5 is attached to the machine frame 2, when the rotating operation of the loading platform surface 41 is gradually advanced to incline the loading platform surface 41, the tip end portion 51 of the locking body 5 gradually retracts from the loading platform surface 41. . However, since the tip portion 51 is in a state of protruding from the luggage carrier surface 41, the leg portion C1 and the plate C1a on the rear side of the container C are sandwiched between the locking body 5 and the locking member 53. In this state, the container C does not move downward from the cargo bed surface 41, and the cargo bed surface 41 moves forward, backward, leftward, and rightward and rotationally around the normal line direction of the cargo bed surface 41 as in the horizontal direction. It is regulated by the locking body 5 and the locking member 51.

  Further, if the tilting operation is advanced to the set angle of the loading surface 41, the container C becomes movable. In order to make the container C movable, the surface of the tilting portion 44 is fixed in parallel to the loading surface 41 in advance. When the inclining operation of the loading surface 41 is advanced, the tip end 51 is completely retracted relatively from the loading surface 41, so that the legs C1 and the plate C1a of the container C are not restricted to the front side and the lower side of the incline. Become. Then, the containers C loaded on the luggage carrier surface 41 start moving downward by their own weight from the inclined luggage carrier surface 41 via the roller member 43. The front end portion of the tilt portion 44 located on the front side of the slanted loading surface 41 comes into contact with the ground to be in a state of preventing the container C from falling from the front end of the loading surface 41 in a state of being floated from the ground.

  The loading surface 41 can be further tilted and rotated. When the container C cannot start moving the inclined loading surface 41 by its own weight, the movement can be promoted by increasing the inclination angle.

  The container C that has moved downward from the top surface 41 of the cargo plane 41 along the inclined surface stops after moving through the tilting portion 44, and the legs C1 and the plate C1a on the front side of the container C come into contact with the ground. After that, when the traveling device 3 is driven to move the transport work machine 1 rearward, the grounded leg portion C1 and the plate C1a try to stay on the spot due to friction with the ground, so that the container C is placed on the loading surface 41. Dragged down by. In this way, the container C can be moved to the ground from the loading surface 41.

  In order to change the angle at which the locking body 5 releases the movement restriction of the leg C1 and the plate C1a of the container C, the amount and position of the tip 51 of the locking body 5 protruding from the luggage carrier surface 41 are changed. By changing the amount of protrusion from the loading surface 41, the angle at which the locking body 5 moves due to the inclination of the container C can be changed. Since there is the container C2 of the container C above the locking body 5, it cannot be projected above the container C2. For this reason, when the angle at which the movement restriction by the locking body 5 is released is further changed, it is made to project from a position closer to the rotation fulcrum shaft 414 of the luggage carrier surface 41. As for the angle of the loading platform 4 from which the movement restriction is released, the angle at which the movement restriction by the locking body 5 is released is increased as the tip end portion 51 of the locking body 5 is at the same height as it is closer to the rotation fulcrum. You can On the contrary, as the distance from the rotation fulcrum increases, the angle of the loading platform 4 where the movement restriction by the locking body 5 is released becomes smaller.

The luggage carrier section 4 further includes a stopper 45 and an extended luggage carrier surface 46.
The stoppers 45 are attached to the left and right side surfaces of the cargo bed surface 41 and regulate the movement of the container C in the left and right directions. In the case of this embodiment, it is provided on the left and right sides of the luggage carrier surface 41 at two positions in the front and rear. The stopper 45 is set smaller than the height of the leg portion C1 of the container C so that it does not become an obstacle when the container C is loaded on the cargo bed surface 41 by equipment such as a forklift.
Further, when the extended bed surface 46 is provided on both the left and right sides of the bed surface 41 and the stopper 45 so as to extend the bed surface 41 in the direction orthogonal to the traveling direction, and the bed surface 41 is extended in the direction orthogonal to the traveling direction. To use. The extension bed surface 46 has a rotation axis parallel to the front-rear direction with respect to the bed surface 41 and is rotatable upward, and can be expanded or folded depending on whether or not it is used.

  To operate the luggage carrier 4 and the traveling device 3, the operation portion 6 provided on the rear portion of the machine frame 2 behind the luggage carrier 4 is operated. The operating unit 6 has a plurality of levers 61, and by operating these levers 61, the output rotation speed of the power source 7 arranged near the operating unit 6 is adjusted, the tilting operation of the loading platform 4 and the traveling device 3 are performed. Adjust and switch speed adjustment and steering respectively. The rotation of the power source 7 is transmitted to the drive wheels 31 via a transmission case (not shown), and the rotation of the drive wheels 31 drives the traveling device 3.

  In the transport work machine 1 configured as described above, the loading platform 4 is tilted by the operation of the operating unit 6, and then the container C loaded on the loading platform 4 is smoothly grounded by the roller member 43 and the tilted loading platform 4. Can be discharged to. Further, since the personnel and equipment for unloading the container C from the loading platform 4 are unnecessary, the work efficiency can be improved. Further, when the loading platform 4 is in the horizontal state, the movement of the container C can be prevented by the locking body 5 and the locking member 53, so that the container C can be stably transported after being loaded.

  Although the present invention has been described by the above embodiments and modifications, it should not be understood that the descriptions and drawings forming a part of this disclosure limit the present invention. The embodiment, the example, and the operation technique based on this disclosure can be variously modified within the technical scope defined by the claims described in the claims.

DESCRIPTION OF SYMBOLS 1 Transport work machine 2 Machine frame 3 Traveling device 4 Cargo bed part 41 Cargo bed surface 414 Rotation fulcrum shaft 42 Driving means 43 Roller member 44 Tilt part 5 Locking body 6 Operation part 7 Power source C Container

Claims (5)

Traveling devices arranged on the machine frame in pairs on the left and right with respect to the traveling direction,
A loading platform portion that is located above the traveling device and is capable of tilting about a rotation fulcrum axis and that has a loading platform surface on which a load is placed;
A plurality of roller members having a rotation outer diameter on the loading platform toward the load side from the loading platform surface;
An operation unit for operating the traveling device and the loading platform,
A plurality of locking bodies that are disposed below the cargo bed portion and that are provided so as to project from the cargo bed surface toward the load side in order to lock the cargo on the cargo bed surface,
A transport work machine characterized by having. The tilting operation of the bed surface is performed toward the traveling direction side,
The locking body retracts downward from the luggage carrier surface when the luggage carrier surface is inclined, and projects upward from the luggage carrier surface when a load can be placed on the luggage carrier surface,
The transport working machine according to claim 1, further comprising: The locking bodies are arranged side by side in parallel with the rotation fulcrum axis and are provided on one end side of the luggage carrier surface so as to be able to project from the inside of the luggage carrier surface.
The transport working machine according to claim 1 or 2, further characterized by the above. On the other end side of the rotation fulcrum axis of the luggage carrier surface, a tilting portion provided so as to be rotatable in a direction facing the inclination direction of the luggage carrier surface and capable of fixing and releasing the posture.
The transport working machine according to any one of claims 1 to 3, further characterized by the above. The other end of the platform surface is grounded by tilting.
The transport working machine according to any one of claims 1 to 4, further comprising:

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