JP2020182390A - Seedling raising box arranging unit and seedling raising box arranging method - Google Patents

Abstract

To provide a seedling raising box arranging unit capable of contriving a structure of the seedling raising box arranging unit, facilitating carrying-in to a seedling raising facility, and facilitating box arranging work.SOLUTION: A seedling raising box arranging unit comprises on a travel bogie 1 to which a right and left pair of front wheels 7 and rear wheels 8 rotatably, a transport conveyor for driving and transporting seedling raising boxes. The rear wheels 8 of the travel bogie 1 is configured to change a travel direction to any one of right and left sides by a steering operation by a steering operation handle 18 of a travel operation mechanism 11, and the travel operation mechanism 11 has a lock mechanism for locking the steering operation of the travel operation mechanism 11. In a steering operation lock state of the steering operation handle 18 by the lock mechanism, a slight adjusting mechanism performs slight adjustment of the travel direction in the seedling raising box arranging unit.SELECTED DRAWING: Figure 10

Description

The present invention relates to a seedling raising box arranging device and a seedling raising box arranging method for arranging a large number of seedling raising boxes on the entire ground in a facility such as a vinyl house.

Conventionally, one seedling raising box arranging device is configured by providing a transport conveyor for transporting the seedling raising box on a traveling trolley that can run in a seedling raising facility having an entrance for placing and laying the seedling raising box. It is configured to be narrower than the left and right width of the entrance of the nursery facility, carried in from the entrance, and the two nursery box arranging devices carried in are connected to perform the box arranging work, and the configuration of this nursery box arranging device is known. Yes (Patent Document 1)

Utility model registration No. 3108488

In the above-mentioned known example, a seedling raising box arranging device is formed at the entrance width of a seedling raising facility, and each independent seedling raising box arranging device is carried in through the entrance, and then a plurality of seedling raising box arranging devices are connected to form an integrated seedling raising box. Since it is used as a box arranging device, there is a problem that it is troublesome and not easy to carry it into a seedling raising facility.
In the present application, the configuration of the seedling raising box arranging device is devised to facilitate the delivery to the seedling raising facility and the box arranging work.

According to the first aspect of the present invention, a transport conveyor 5 for driving and transporting the seedling raising box A is provided on a traveling carriage 1 in which a pair of left and right front wheels 7 and rear wheels 8 are rotatably attached, and the rear wheels 8 of the traveling carriage 1 are provided. Is configured so that the traveling direction can be changed to either left or right by steering operation by the steering operation handle 18 of the traveling operation mechanism 11, and the traveling operation mechanism 11 is a lock mechanism that locks the steering operation of the traveling operation mechanism 11. 20 is provided, and the seedling raising box arranging device is provided with a fine adjustment mechanism 30 for finely adjusting the traveling direction in the steering operation lock state of the steering operation handle 18 by the lock mechanism 20.
According to the second aspect of the present invention, the rear wheel 8 is configured so that the traveling direction can be changed with respect to the traveling carriage 1 by the rear wheel mounting shaft 13, and the rear wheel mounting shaft 13 is located in the forward direction of the traveling carriage 1 as it goes upward. It is a seedling raising box arranging device provided so as to be tilted.
According to the third aspect of the present invention, the individual conveyor 40 of the conveyor 5 is provided with a front roller 50 and a rear roller 51 provided on the front portion and the rear portion of the conveyor frame 35, respectively, and the individual conveyor 40 is provided at a predetermined position of the conveyor frame 35. This is a nursery box arranging device provided with a belt detachment prevention guide 55 that prevents the conveyor belt 36 from coming off when the front frame body 37 is folded with respect to the rear frame body 38.
According to the fourth aspect of the present invention, the transport frame 35 is a nursery box arranging device provided so as to be movable in the left-right direction with respect to the traveling carriage 1.
According to the invention of claim 5, the transport conveyor 5 has a plurality of individual conveyors 40 forcibly driving and transporting the seedling raising box A arranged side by side on the traveling carriage 1 in the left-right direction with respect to the traveling of the machine, and is larger than the left-right width of the traveling carriage 1. The conveyor frame 35 of the conveyor 5 is divided into a front frame body 37 and a rear frame body 38 in the front-rear direction, and the rear portion of the front frame body 37 is rotatably formed in the front portion of the rear frame body 38. When attached, the front predetermined portion of the conveyor 5 is foldable upward, and the conveyor 5 is configured to be rotatable 90 degrees on the vertical axis with respect to the traveling carriage 1, and the predetermined portion on the front side is foldable and the vertical axis is 90 degrees. The left-right width of the rotated conveyor 5 is a seedling raising box arranging device formed narrower than the entrance 3 of the seedling raising facility 2 on which the seedling raising box A is placed and laid.
The invention of claim 6 is a traveling trolley in which a pair of left and right front wheels 7 and a rear wheel 8 are rotatably attached to a predetermined position in a seedling raising facility 2 having an entrance 3 for placing and laying a seedling raising box A. A plurality of individual conveyors 40 arranged side by side in the left-right direction of the transport conveyor 5 for forcibly driving and transporting the nursery box A of the transport conveyor 5 provided on the traveling carriage 1 while traveling on the floor surface 4 in this state. The seedling raising box A that has been sown is supplied, and the seedling raising box A supplied to the individual conveyor 40 is driven and conveyed toward the end side of the transfer at a predetermined transfer speed, and is followed by the leading seedling raising box A that has been lowered onto the floor surface 4. When the seedling raising box A is hit, the seedling raising box A is laid on the floor surface 4 while the traveling trolley 1 is moved backward by the reaction force of the driving transport force.

According to the first aspect of the present invention, the seedling raising box arranging device H can be steered by the steering operation handle 18 of the traveling operation mechanism 11, but can lock the steering operation of the traveling operation mechanism 11. Further, even in the steering operation locked state of the steering operation handle 18 by the lock mechanism 20, the traveling direction can be finely adjusted, so that the operability can be improved.
In the invention of claim 2, the rear wheel 8 is attached to the traveling carriage 1, and the rear wheel mounting shaft 13 is provided so as to be inclined so as to be positioned in the forward direction of the traveling carriage 1 as it goes upward. The straight running stability of 1 can be improved.
In the invention of claim 3, the individual conveyor 40 of the conveyor 5 is provided with a front roller 50 and a rear roller 51 provided on the front portion and the rear portion of the conveyor frame 35, respectively, and the individual conveyor 40 is provided at a predetermined position of the conveyor frame 35. A guide for preventing the conveyor belt 36 from coming off when the front frame 37 is folded with respect to the rear frame 38 Since the guide 55 for preventing the belt coming off is provided, the posture can be changed between the folded posture and the working posture. Work can be done easily.
In the invention of claim 4, since the transport frame 35 is provided so as to be movable in the left-right direction with respect to the traveling carriage 1, the seedling raising box of the seedling raising box arranging device H does not need to perform steering operation and steering fine adjustment operation. The laying position of A can be changed and adjusted, the operability can be improved, and the alignment accuracy of the nursery box A can be improved.
In the invention of claim 5, the left-right width of the conveyor 5 in a state where the front portion of the conveyor 5 is folded upward and rotated by 90 degrees with respect to the traveling carriage 1 is set from the entrance 3 of the seedling raising facility 2. Since it is formed narrowly, it can be easily carried in and out of the seedling raising facility 2, and it can be folded upward, the posture of rotation can be changed, and the original state can be restored without tools, which facilitates the overall box arrangement work. Can be.
In the invention of claim 6, since the box arranging work can be performed without running the seedling raising box arranging device H by the motor, the configuration can be simplified and an inexpensive seedling raising box arranging device can be provided.

A side view of the seedling raising box arrangement device and a schematic view of the seedling raising facility. Top view of the nursery box arrangement device. The same front view. The same rear view. The same vertical exploded view. A rear view, a plan view, a perspective view, and an enlarged cross-sectional view of the transport frame in which a part of the transport frame is omitted. A rear view, a plan view, a perspective view, and an enlarged cross-sectional view of the transport frame in which a part of the transport frame is omitted. Rear view and plan view of the transport frame with some parts omitted. The rear view, the side view of the folded state, the side view of the rotating state, and the rear view of the nursery box arranging device. A side view of the seedling raising box arranging device with the steering wheel tilted down. Perspective view of the traveling operation mechanism. Explanatory drawing of the same operation state. A perspective view of the unlocked state. Side view near the rear wheel. A perspective view of the conveyor in a folded state and a partially enlarged perspective view. Perspective view of the descending derivative. A perspective view of the vicinity of the front pulley in a folded state of the conveyor. Rear view near the traveling operation mechanism. Side view near the rotary operation lever. Perspective view near the rotation operating lever. The same plan view. Bottom view near the motor. A perspective view of the vicinity of the motor with the conveyor folded. A partial front view of the conveyor in a folded state. Partial perspective view of the conveyor.

Explaining one embodiment of the present invention with reference to the drawings, 1 is a nursery box A while moving backward from the floor surface (ground) 4 on the back side away from the entrance 3 of the nursery facility 2 such as a vinyl house. It is a traveling carriage of the nursery box arranging device H for arranging the seedlings, and the traveling carriage 1 is provided on the traveling carriage 1 described later without requiring a driving source for traveling and without requiring manual pushing or traction force by human power. The seedling raising box A driven by the transport conveyor 5 is configured to be able to travel by the reaction force when it is placed on the floor surface 4 of the seedling raising facility 2.
Therefore, the traveling bogie 1 is configured by having a pair of left and right front wheels 7 and rear wheels 8 on the bogie traveling frame 6, respectively, and the front wheels 7 are attached to the bogie traveling frame 6 by the front wheel shaft 9 so that only rotation is free. The wheel 8 is attached so that the traveling direction can be changed.

The rear wheel 8 is attached to the rear wheel mounting body 10 which constitutes a part of the traveling operation mechanism 11 for operating the traveling direction of the seedling raising box arranging device H provided between the rear wheel mounting body 10 and the bogie traveling frame 6 to the left and right. The rear wheel attachment body 10 is attached to the bogie traveling frame 6 in a free-rotating state by the rear wheel shaft 12, and the traveling direction can be freely changed by the rear wheel mounting shaft 13 of the vertical axis core. It is configured so that it can be operated in a direction (steering operation).
In this case, as shown in FIG. 14, the rear wheel mounting shaft 13 is tilted so as to fall toward the forward direction of the traveling carriage 1, in other words, to be located on the front side toward the upper side, so that the caster angle K It is assumed that the structure is provided.
Therefore, the straight running stability of the traveling carriage 1 can be improved.

The configuration of the traveling operation mechanism 11 is arbitrary, but as an example, the outer end of the operation rod 15 is rotatably attached to each rear wheel mounting body 10, and the inner end of the operation rod 15 is centered. It is rotatably attached to the tip of the moving body 16.
The base of the central rotating body 16 is rotatably attached to the bogie traveling frame 6 by the handle shaft 17 of the vertical axis core. The steering operation handle 18 is attached to the upper part of the handle shaft 17.
When the steering operation handle 18 is rotated (rotated) about the handle shaft 17, the tip of the central rotating body 16 is moved in one of the left and right directions (vertical axis rotation), whereby the central rotating body 16 is rotated. Moves the left and right operation rods 15 in the lateral direction, and activates the traveling operation mechanism 11 that constitutes a four-bar link by the carriage traveling frame 6, the left and right operating rods 15, and the left and right rear wheel mounting bodies 10, and rear left and right. The traveling direction of the wheel 8 is changed to steer the seedling raising box arranging device H.

A lock mechanism 20 for locking the operation direction of the steering operation handle 18 in a straight-ahead state is provided. The configuration of the lock mechanism 20 is arbitrary, but as an example, the lock mechanism 20 attaches the base of the arm 21 to the handle shaft 17 in a fixed state, forms a mounting hole 22 at the tip of the arm 21, and mounts the mounting hole 22. The lock body 23 is inserted into the lock body 23 so as to be movable up and down, and the lock body 23 is provided so as to engage and disengage from the lock hole 6B of the mounting stay 6A provided in the carriage traveling frame 6. The lock body 23 is formed in the shape of a shaft rod, and is vertically mounted on a mounting portion 24 provided on the arm 21 in a fixed state, and a coil spring 25 is attached to the outer periphery of the lock body 23 of the portion mounted on the mounting portion 24. It is installed by inserting it.

The coil spring 25 is configured to be constantly urged so that the lower end of the lock body 23 engages with the lock hole 6B of the mounting stay 6A. The base portion of the lock lever 26 is fixedly attached to the lock body 23 protruding upward from the attachment portion 24, and the attachment portion 24 is provided with an engagement groove 27 for engaging and holding the lock lever 26.
When the lock lever 26 is engaged with the engagement groove 27, the lock body 23 holds the locked state engaged with the lock hole 6B. The engaging groove 27 also acts as a stopper that regulates the downward movement of the lock lever 26. Reference numeral 27A is an unlock engagement step portion.
Further, the lock mechanism 20 is provided with a fine adjustment mechanism 30 for finely adjusting the traveling direction of the seedling raising box arranging device H. The configuration of the fine adjustment mechanism 30 is arbitrary, but as an example, an engaging protrusion 31 is provided at the lower end of the lock body 23 so as to project downward at an eccentric position with respect to the axial center of the lock body 23. , The engaging protrusion 31 is freely inserted and engaged in the lock hole 6B of the mounting stay 6A.

Therefore, when the engaging protrusion 31 of the lock body 23 is inserted into the lock hole 6B of the mounting stay 6A, the rotation of the arm 21 is fixed, and the operation by the steering operation handle 18 is locked by the lock mechanism 20 in this state. When the lock lever 26 is rotated, the lock lever 26 rotates the lock body 23 in the mounting hole 22 of the arm 21, and the lock body 23 eccentrically rotates the engaging protrusion 31 around the axis of the lock body 23. However, since the engaging protrusion 31 is in contact with the inner peripheral surface of the lock hole 6B of the mounting stay 6A, it is locked as a reaction force of the engaging protrusion 31 with respect to the inner peripheral surface of the lock hole 6B of the mounting stay 6A. The rotational force of the body 23 is converted into a rotational (swing) motion in which the arm 21 is centered on the handle shaft 17, and as a result, the handle shaft 17 is slightly rotated by the arm 21, and the handle shaft 17 is the central rotating body 16. By operating the traveling operation mechanism 11 via the above, the traveling direction of the seedling raising box arranging device H can be finely adjusted.

FIG. 12 is a view seen from below. When the lock lever 26 is configured to coincide with the operating direction and the traveling direction, and the lock lever 26 is rotated in the a direction (left direction), the nursery box arranging device H The backward traveling direction of the seedling raising box arrangement device H becomes the right direction when the lock lever 26 is rotated in the B direction (right direction).
Then, the transport frame 35 of the foldable conveyor 5 is rotatably attached to the traveling carriage 1. In the transport conveyor 5, a plurality of transport belts 36 corresponding to the number of seedling raising boxes A arranged in parallel on the transport frame 35 are arranged side by side in the left-right direction, and the front side portion of the transport frame 35 is upward at predetermined positions in the front-rear direction in the transport direction. It can be rotated to form a horizontal V-shape so that it can be freely folded.

That is, the transport frame 35 is divided into a front frame body 37 and a rear frame body 38, and the rear portion of the front frame body 37 is rotatably attached to the front portion of the rear frame body 38 by a rotary mounting shaft 39. During work, the front frame body 37 and the rear frame body 38 are in a working state in which the front frame body 37 and the rear frame body 38 are tilted at a predetermined tilt angle that descends forward. And.
Further, the transport frame 35 is rotatably attached to the carriage traveling frame 6 of the traveling carriage 1 so that the transport conveyor 5 is rotated 90 degrees with respect to the traveling carriage 1 at the time of loading and unloading to the seedling raising facility 2. The traveling direction of the carriage 1 and the transporting direction of the conveyor 5 can be freely switched to a working posture in which the traveling direction is in a straight line state.

Therefore, the nursery box arranging device H rotates the front frame body 37 upward with respect to the rear frame body 38 to bring the conveyor 5 in the folded state into a rotating posture in which the vertical axis is rotated by 90 degrees with respect to the traveling carriage 1. After carrying in the seedling raising facility 2, the transport conveyor 5 is rotated 90 degrees with respect to the traveling carriage 1 so that the traveling direction of the traveling carriage 1 and the transporting direction of the transport conveyor 5 are in a linear state, and the working posture. Next, the folded front frame body 37 is rotated downward to be in a transporting posture, and the box arranging work can be performed, facilitating the loading / unloading work of the seedling raising box arranging device H into the seedling raising facility 2.
Reference numeral 46A is a support roller that abuts and supports the lower surface of the front frame body 37 at a predetermined position when the front frame body 37 is in the working posture (FIG. 10).
46B is a stopper that prevents the front end of the front frame body 37 from pointing downward and holds an inclined posture when the front frame body 37 is in the working posture, and 46C is a receiving plate (FIG. 15).

That is, at the time of box arranging work, at least the box arranging work of four rows of seedling raising boxes A is performed by the four rows of individual conveyors 40, and the left and right of the seedling raising box arranging device H in the folding rotation posture at the time of loading and unloading to the seedling raising facility 2. The width is set to be 1800 mm or less.
The vertical axis rotation configuration of the conveyor 5 (conveyor frame 35) with respect to the traveling carriage 1 is arbitrary, but a central support shaft 42 projecting downward is provided in the central support portion 41 provided at the center of the conveyor frame 35, and the central support shaft 42 is provided. The 42 is fitted into the boss portion 43 provided in the central portion of the carriage traveling frame 6 of the traveling carriage 1 from above and attached rotatably.
Further, the central support portion 41 is provided with a rotation operation lever 45 for changing the direction of the conveyor 5.
Reference numeral 45A is a lock portion of the rotary operation lever 45, and reference numeral 45B is a shock absorber when the conveyor 5 is returned (FIG. 19).

The front frame body 37 and the rear frame body 38 constituting the transport frame 35 are configured by providing a vertical rod 46 in the front-rear direction and a horizontal rod 47 in the left-right direction, and the vertical rods 46 are arranged in a row by a pair of left and right vertical rods 46. By forming a transport path 48 on which the seedling raising box A is placed and arranging a plurality of vertical rods 46 in the left-right direction, a plurality of transport paths (individual conveyors 40) 48 can be arranged in parallel in the left-right direction. The transport conveyor 5 is provided with four rows of transport paths 48.
That is, the transport conveyor 2 is a vertical rod 46 framed in a substantially rectangular shape in a plan view extending in the front-rear direction with a width equal to or slightly wider than the left-right width of the two seedling raising box seedling raising box arranging devices H. A front roller 50 and a rear roller 51 are provided on the front and rear parts of the above (FIG. 5), and a pair of endless conveyor belts 36 are hung around at intervals narrower than the left-right width of one seedling raising box A. Left and right guide walls 52 for forming transport paths 48 on the left and right sides of the transport belt 36 are set up to form a single row of individual conveyors (conveyor paths 48) 40, and the individual conveyors 40 are arranged side by side in four rows in the left-right direction. Conveyor conveyor 5 is configured.

By driving the front roller 50 by a drive motor 53 provided at a predetermined position on the lower surface of the transfer frame 35 of the transfer conveyor 5, the seedling raising box A is moved from the transfer start side to the transfer end side on the transfer conveyor 5 at a predetermined transfer speed. The seedling raising box arranging device H retreats due to the reaction force when the subsequent seedling raising box A hits the seedling raising box A lowered on the floor surface 4.
53A and 53B are belts, and 53C is a rotation shaft of the front roller 50.
The operation switch 54 of the drive motor 53 is provided at a predetermined position.
Further, the drive motor 53 that drives and rotates the front roller 50 may be a speed change motor that can change the rotation speed steplessly.
Further, at a predetermined position of the transport frame 35, a belt detachment prevention guide 55 is provided to prevent the transport belt 36 from coming off when the front frame body 37 is folded with respect to the rear frame body 38.
The belt disengagement prevention guide 55 is provided near the outer periphery of the front roller 50 and the rear roller 51 and also near the drive motor 53 body (FIG. 22) so that the conveyor belt 36 does not get entangled with the drive motor 53 body. ing.

The transport frame 35 (conveyor conveyor 5) is provided so as to be movable in the left-right direction with respect to the traveling carriage 1 by the lateral movement mechanism 59. The configuration of the lateral movement mechanism 59 of the transport frame 35 (conveyor 5) is arbitrary, but as an example, the transport frame 35 is individually separated from the lower fixed frame 56 having the central support portion 41 and the central support shaft 42. It is divided into an upper moving frame 57 provided with a conveyor (conveyor path 48) 40, a lateral moving mechanism 59 is provided between the lower fixed frame 56 and the upper moving frame 57, and the upper moving frame 57 (conveyor 5) is provided. Is moved laterally with respect to the traveling carriage 1 (FIG. 4).
A pair of front and rear support arms 60 are provided on the lower surface of the upper moving frame 57, support rails 61 in the left-right direction are provided on the support arms 60, and the support rails 61 are placed on the operation rotating roller 62 provided on the lower fixed frame 56. Place it. The operation rotating roller 62 is fixed to the handle shaft 63 in the front-rear direction, and a lateral movement handle (dial) 64 is provided at the rear end of the handle shaft 63.

The handle shaft 63 is rotatably mounted on the central support portion 41 by a bearing member 65 at a predetermined position.
Therefore, when the load of the transport frame 35 (conveyor 5) is applied to the operation rotary roller 62 and the operation rotary roller 62 is rotated by the lateral movement handle (dial) 64, the frictional resistance between the operation rotary roller 62 and the support rail 61 causes. , The transport frame 35 (conveyor conveyor 5) moves laterally.
62A is a holding roller.
Then, on the front side of the front frame body 37, a descent derivative 70 that induces descent of the nursery box A transported by the transport belt 36 to the floor surface 4 is provided. The descent derivative 70 is formed by a plate member having a U-shaped cross section, the tip of the descent derivative 70 is a free end, and the base of the descent derivative 70 is rotatably attached to the front end of the horizontal rod 47 by a mounting shaft 71.

A stopper 72 is provided at the base of the descending derivative 70, and the stopper 72 is brought into contact with the horizontal rod 47 to maintain the forward descending state. The stopper 72 is composed of an elongated hole 72A and an engaging pin 72B.
When the front frame body 37 is rotated upward and folded, the descending derivative 70 is integrally rotated upward around the rotation mounting shaft 39 together with the front frame body 37.

(Action of Embodiment)
The present invention has the above configuration, and when arranging the seedling raising boxes A at the entrance 3 in the vinyl house seedling raising facility 2 or the like, the frontage dimension of the entrance 3 of the seedling raising facility 2 is 1800 mm, so that the seedling raising box 1 can be folded freely into the traveling carriage 1. The front side portion is rotated upward at a predetermined position in the front-rear direction of the conveyor 5 attached to the conveyor 5 and folded in a lateral V shape.
Next, since the conveyor 5 folded with respect to the traveling carriage 1 is configured to be rotatable on the vertical axis, the conveyor 5 is rotated on the vertical axis with respect to the traveling carriage 1.

Since the conveyor 5 rotated on the vertical axis is set to have a left-right width of 1800 mm or less, the traveling carriage 1 is freely driven by pushing the handle, and the nursery box arranging device H is operated from the entrance of the vinyl house seedling raising facility 2. Carry in.
Next, the transport conveyor 5 of the seedling raising box arranging device H carried in from the entrance of the vinyl house seedling raising facility 2 is rotated 90 degrees with respect to the traveling substitute vehicle 1, and the transporting direction of the transporting conveyor 5 and the traveling direction of the traveling carriage 1 are determined. To match.
Next, the seedling raising box arranging device H is run to a predetermined position on the back side of the seedling raising facility 2, and at this predetermined position, the front side portion of the folded transfer conveyor 5 is rotated downward, and the transfer conveyor 5 is moved from the start end portion to the end portion. The work state is such that the inclination angle is the same from beginning to end.

Next, the drive motor 53 of the folded conveyor 5 is energized and driven.
At this time, since the seedling raising box arranging device H does not have the seedling raising box A on the conveyor 5, it does not travel backward and stays at that place.
The seedling raising boxes A that have been sown are sequentially placed and supplied from one of the left and right sides of each of the transport paths 48 of the driven transport conveyor 5 to the other side.
The nursery box A supplied to the conveyor 5 is driven and moved forward, and a gap is created on the transport path 48. Therefore, the next nursery box A is supplied to this gap and this operation is repeated.
When the seedling raising box A is supplied over the entire length of the conveyor 5, the front end of the leading seedling raising box A comes into contact with the floor surface 4, and the leading seedling raising box A stops moving due to contact friction with the floor surface 4. To do.

Since the succeeding seedling raising box A on the transporting conveyor 5 is further advanced with respect to the leading seedling raising box A by the drive transport of the transporting conveyor 5, the stopped leading seedling raising box A is pushed by the succeeding seedling raising box A. The reaction force of the subsequent seedling raising box A pushing the leading seedling raising box A causes the seedling raising box arranging device H to retreat.
That is, since the front wheels 7 and the rear wheels 8 of the traveling carriage 1 are attached to the traveling carriage 1 in a free-rotating state, the nursery box A on the transport conveyor 5 is lowered to the floor surface 4 by the driving transport force of the transport conveyor 5. Due to the reaction force at that time, the seedling raising box arranging device H retreats, and while retreating, the seedling raising box A can be arranged in the seedling raising facility 2.

In order to facilitate understanding, the nursery box A is supplied to the individual conveyors 40 of the single row of transport conveyors 5, but the seedlings are raised in order on each of the transport belts 36 of the individual conveyors 40 arranged side by side. When the box A is supplied, four rows of seedling raising boxes A can be laid in the seedling raising facility 2, and when the seedling raising box arranging device H is retracted to the entrance of the seedling raising facility 2, the seedling raising box arranging device H is moved to the back side of the seedling raising facility 2. It is moved again and the laying work is repeated.
If a stopper formed of a plate member or the like is provided in advance at a predetermined position on the floor surface 4 of the vinyl house seedling raising facility 2, the leading seedling raising box A transported and supplied from the transport conveyor 5 has contact friction with the floor surface 4. In addition to the resistance, the forward movement is stopped by the stopper, and the backward running of the seedling raising box arranging device H due to the reaction force of the subsequent seedling raising box A is surely performed.

Therefore, since the front wheels 7 are attached to the carriage traveling frame 6 in a free rotation state by the front wheel shaft 9 and the rear wheels 8 are attached so that the traveling direction can be changed freely, the steering operation handle 18 is attached in the clockwise or counterclockwise rotation direction. When the rotation operation is performed, the tip of the central rotating body 16 is moved in one of the left and right directions, whereby the central rotating body 16 moves the left and right operation rods 15 in the lateral direction, and the trolley traveling frame 6 and the left and right operation rods. The traveling operation mechanism 11 forming the four-bar link is operated by the 15 and the left and right rear wheel mounting bodies 10, and the traveling directions of the left and right rear wheels 8 are changed to steer the seedling raising box arranging device H.

Further, since the steering operation handle 18 is provided with a lock mechanism 20 that locks the operation direction of the steering operation handle 18 in a straight-ahead state, when the traveling direction of the nursery box arranging device H does not bend during the box arranging work, When the operation of the steering operation handle 18 is locked by the lock mechanism 20, the nursery box arranging device H retracts in a straight-ahead state, and the operability can be improved.
The lock mechanism 20 is provided so that the base of the arm 21 is fixedly attached to the handle shaft 17 and the shaft rod-shaped lock body 23 is engaged with and disengaged from the mounting hole 22 formed at the tip of the arm 21, and the lock body 23 is a carriage. A coil spring 25 is provided on the outer periphery of the lock body 23 of the portion mounted on the mounting portion 24 by vertically mounting the shaft on the mounting portion 24 provided on the traveling frame 6, and the lower end of the lock body 23 is always in the mounting hole 22. Since it is urged to engage, when the lock lever 26 of the lock body 23 is engaged with the engagement groove 27, the lock body 23 holds the locked state in which it is engaged with the mounting hole 22.

Further, the lock mechanism 20 is provided with a fine adjustment mechanism 30 that finely adjusts the traveling direction of the seedling raising box arranging device H with the lock body 23 locked in the mounting hole 22, and the fine adjustment mechanism 30 is the lock body 23. Since the engaging protrusion 31 arranged at an eccentric position with respect to the axial center of the lock body 23 is provided on the outer periphery of the lock body 23 and the engaging protrusion 31 is inserted into the mounting hole 22, when the lock lever 26 is rotated, it engages. The joint protrusion 31 pushes the inner peripheral surface of the mounting hole 22 to rotate the arm 21 around the handle shaft 17, and the central rotating body 16 interlocks to operate the traveling operation mechanism 11, and the traveling direction of the seedling raising box arranging device H. To fine-tune.

As for the transfer conveyor 5, a plurality of individual conveyors 40, which are a set of a pair of transfer belts 36 in a number corresponding to the number parallel to the seedling raising facility 2 on the transfer frame 35 of the transfer conveyor 5, are arranged side by side in the left-right direction. Since the front side portion of the transport frame 35 is rotated upward at a predetermined position in the front-rear direction in the transport direction and is foldable in a lateral V shape, the transport frame 35 is mounted on the traveling substitute vehicle 1. The front predetermined portion of 35 can be folded upward.

Specifically, the transport frame 35 is divided into a front frame body 37 and a rear frame body 38, and the rear portion of the front frame body 37 is rotatably attached to the front portion of the rear frame body 38 by a rotation mounting shaft 39. , Switching between a working state in which the front frame body 37 and the rear frame body 38 are tilted at the same front-down predetermined tilt angle, and a folded state in which the front frame body 37 is rotated upward with respect to the rear frame body 38 and folded. Since it is freely configured, the transport conveyor 5 can be in a folded state when the seedling raising box arranging device H is carried in and out of the seedling raising facility 2, and the transport conveyor 5 can be made compact with respect to the traveling carriage 1. It can be done and facilitates running operation.

Further, after the transport conveyor 5 (conveyor frame 35) is carried into the seedling raising facility 2, the transport conveyor is connected to the traveling carriage 1 so that the traveling direction of the traveling carriage 1 and the conveying direction of the transport conveyor 5 are in a straight line. 5 is rotated 90 degrees to return to the working posture, and then the folded front frame 37 is rotated downward to be in the transporting posture, so that the box arranging work can be easily performed.
Central support shaft central support shaft 42 provided in the central central support portion 41 of the transport frame 35 of the conveyor 5 is provided, and the central support shaft 42 is provided in the central portion of the carriage traveling frame 6 of the traveling carriage 1. Since the conveyor frame 35 is rotatably attached by being fitted from above, the conveyor frame 35 can be easily switched between the folding rotation posture and the working posture by rotating the conveyor frame 35 with the rotation operation lever 45.

The front frame body 37 and the rear frame body 38 constituting the transport frame 35 are configured by providing a vertical rod 46 in the front-rear direction and a horizontal rod 47 in the left-right direction, and the vertical rods 46 are arranged in a row by a pair of left and right vertical rods 46. By forming a transport path 48 on which the seedling raising box A is placed and arranging a plurality of vertical rods 46 in the left-right direction, a plurality of transport paths 48 can be arranged in parallel in the left-right direction. Makes boxing work easier.
The conveyor 2 is located at the front and rear of the vertical rod 46, which is framed in a substantially rectangular shape in a plan view extending in the front-rear direction with a width equal to or slightly wider than the left-right width of the two seedling raising boxes A. A front roller 50 and a rear roller 51 are provided, respectively, and an endless conveyor belt 36 is hung around each of the front roller 50 and the rear roller 51 at intervals narrower than the left and right width of one seedling raising box A. Since the left and right guide walls 52 for forming the transport paths 48 are erected and provided on both sides of the pair of left and right transport belts 36, the seedling raising box A is supplied to the starting end of the carriage traveling frame 6. The seedling raising box A is forcibly and driven forward by the transport belt 36 of the individual conveyor 40.

By driving the front roller 50 by a drive motor 53 provided at a predetermined position on the lower surface of the transfer frame 35 of the transfer conveyor 5, the seedling raising box A is moved from the transfer start side to the transfer end side on the transfer conveyor 5 at a predetermined transfer speed. The seedling raising box arranging device H retreats due to the reaction force when the subsequent seedling raising box A hits the seedling raising box A lowered on the floor surface 4.
Further, at a predetermined position of the transport frame 35, a belt detachment prevention guide 55 for preventing the transport belt 36 from coming off when the front frame body 37 is folded with respect to the rear frame body 38 is provided, so that the transport frame 35 is placed in a folded posture. Occasionally, the transport belt 36 can be prevented from coming off from the front roller 50 and the rear roller 51, facilitating the change of posture switching between the folding posture and the working posture.

Since the transport frame 35 is provided so as to be movable in the left-right direction with respect to the traveling carriage 1 via the lateral movement mechanism 59, the transport frame 35 is transported in addition to the correction by steering the traveling direction of the nursery box arranging device H. Since the left and right positions of the conveyor 5 can be changed and adjusted, the seedling raising box A can be laid in an orderly manner in the seedling raising facility 2, and no wasted space is generated in the seedling raising facility 2.
The lateral movement mechanism 59 is provided with a pair of front and rear support arms 60 on the lower surface of the rear frame body 38, each of the support arms 60 is provided with a support rail 61 in the left-right direction, and the support rail 61 is provided on the central support portion 41. The operation rotary roller 62 is placed on the operation rotary roller 62, and the operation rotary roller 62 is inserted and fixed to the handle shaft handle shaft 63 in the front-rear direction, and a lateral movement handle (dial) lateral movement handle 64 is provided at the rear end of the handle shaft 63. Since it is configured, when the lateral movement handle 64 is rotated, the operation rotating roller 62 is rotated, and the support rail 61 mounted on the operation rotating roller 62 is left or right due to the frictional resistance due to the weight of the transport frame 35. The left and right positions of the transport conveyor 5 are adjusted by laterally moving the handle.

Further, since the rear wheel 8 is provided with the rear wheel mounting shaft 13 tilted so as to tilt toward the forward direction of the traveling carriage 1 and having a so-called caster angle K, as shown in FIG. The straight running stability of the dolly 1 can be improved.

1 ... traveling trolley, 2 ... seedling raising facility, 3 ... entrance, 4 ... floor surface, 5 ... transport conveyor, 6 ... trolley traveling frame, 6A ... mounting stay, 6B ... lock hole, 7 ... front wheel, 8 ... rear wheel, 9 ... front wheel axle, 10 ... rear wheel axle, 11 ... traveling operation mechanism, 12 ... rear wheel axle, 13 ... rear wheel axle, 15 ... operation rod, 16 ... central rotating body, 17 ... handle shaft, 18 ... steering operation Handle, 20 ... Lock mechanism, 21 ... Arm, 22 ... Mounting hole, 23 ... Lock body, 24 ... Mounting part, 25 ... Coil spring, 26 ... Lock lever, 27 ... Engagement groove, 27A ... Unlock engagement step part, 27B ... Fine adjustment engaging step, 30 ... Fine adjustment mechanism, 31 ... Engagement protrusion, 35 ... Conveying frame, 36 ... Conveying belt, 37 ... Front frame, 38 ... Rear frame, 39 ... Rotating mounting shaft, 40 ... Individual conveyor, 41 ... Central support part, 42 ... Central support shaft, 43 ... Boss part, 45 ... Rotation operation lever, 45A ... Lock part, 45B ... Shock absorber, 46 ... Vertical shaft, 46A ... Support roller, 46B ... Stopper, 46C ... Receiving plate, 47 ... Horizontal rod, 48 ... Transport path, 50 ... Front roller, 51 ... Rear roller, 52 ... Left and right guide walls, 53 ... Drive motor, 53A, 53B ... Belt, 53C ... Rotating shaft, 54 ... Operation switch, 55 ... Belt disengagement prevention guide, 56 ... Lower fixed frame, 57 ... Upper movement frame, 59 ... Lateral movement mechanism, 60 ... Support arm, 61 ... Support rail, 62 ... Operation rotating roller, 63 ... Handle Shaft, 64 ... Lateral movement handle, 65 ... Bearing member, 70 ... Descent derivative, 71 ... Mounting shaft, 72 ... Stopper.

Claims (6)

A transport conveyor 5 for driving and transporting the seedling raising box A is provided on the traveling carriage 1 to which the pair of left and right front wheels 7 and the rear wheels 8 are rotatably attached, and the rear wheels 8 of the traveling carriage 1 are the traveling operation mechanism 11. The traveling direction can be changed to either left or right by steering operation with the steering operation handle 18, and the traveling operation mechanism 11 is provided with a lock mechanism 20 for locking the steering operation of the traveling operation mechanism 11, and the lock mechanism 20 is provided. The seedling raising box arranging device provided with the fine adjustment mechanism 30 for finely adjusting the traveling direction in the steering operation locked state of the steering operation handle 18. In claim 1, the rear wheel 8 is configured so that the traveling direction can be changed with respect to the traveling carriage 1 by the rear wheel mounting shaft 13, and the rear wheel mounting shaft 13 is positioned in the forward direction of the traveling carriage 1 as it goes upward. A nursery box arranging device installed at an angle. In claim 1 or 2, the individual conveyor 40 of the conveyor 5 is provided with front rollers 50 and rear rollers 51 provided at the front and rear of the conveyor frame 35, respectively, at predetermined positions of the conveyor frame 35. Is a nursery box arranging device provided with a belt detachment prevention guide 55 that prevents the conveyor belt 36 from coming off when the front frame body 37 is folded with respect to the rear frame body 38. In claim 1 or 2, or 3, the transport frame 35 is a nursery box arranging device provided so as to be movable in the left-right direction with respect to the traveling carriage 1. In claims 1 to 4, the transport conveyor 5 has a plurality of individual conveyors 40 forcibly driving and transporting the seedling raising box A arranged side by side on the traveling carriage 1 in the left-right direction with respect to the traveling of the machine, and the left-right width of the traveling carriage 1. The conveyor frame 35 of the conveyor 5 is divided into a front frame body 37 and a rear frame body 38 in the front-rear direction, and the rear portion of the front frame body 37 is rotated to the front portion of the rear frame body 38. It can be freely attached to form the front predetermined portion of the conveyor 5 so as to be foldable upward, and the conveyor 5 is configured to rotate 90 degrees on the vertical axis with respect to the traveling carriage 1, and the front predetermined portion can be folded and 90 degrees. The horizontal width of the conveyor 5 rotated on the vertical axis is narrower than the entrance 3 of the seedling raising facility 2 on which the seedling raising box A is placed and laid. Traveling trolley with a pair of left and right front wheels 7 and rear wheels rotatably mounted Traveling trolley 1 is driven on the floor surface 4 to a predetermined position in the nursery facility 2 having an entrance 3 for placing and laying the nursery box A. In this state, the seeded seedling raising box A is supplied to the starting end of each of the individual conveyors 40 arranged side by side in the left-right direction of the transport conveyor 5 for forcibly driving and transporting the seedling raising box A of the transport conveyor 5 provided on the traveling carriage 1. Then, the seedling raising box A supplied to the individual conveyor 40 was driven and conveyed toward the end side of the transfer at a predetermined transfer speed, and the subsequent seedling raising box A was applied to the leading seedling raising box A lowered on the floor surface 4. When the seedling raising box A is laid on the floor surface 4 while the traveling carriage 1 is moved backward by the reaction force of the driving transport force.

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