JPH11275974A - Seedling box expander - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase an expanding operation efficiency of a plurality of seedling boxes and make each of the seedling box be surely transferred onto the ground with a front driving part by arranging the plurality of seedling boxes introduced from backward in the right and left direction and simultaneously expanding. SOLUTION: This seedling box expander is composed of a supporting frame fitted on a running machine body 9, a rear part of a carrying frame supported at a front part of the supporting frame in vertically swingable state, a tilting mechanism 7 making the carrying frame tilt from an about horizontal attitude to a front-down attitude provided on the supporting frame, a longitudinal carrying means loading several pieces of seedling boxes N on the carrying frame in the right and left direction and carrying forward and a lateral carrying means 25 transferring the seedling boxes N from a seedling boxes introducing side to the right and left side and arranging on the longitudinal carrying means. The longitudinal carrying means has a driving part pushing out each of the seedling box N to the front part and a box delivering means 10 supplying the seeding box N to the lateral carrying means 25 is disposed at a rear of the carrying frame in the seedling box expander.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling box unfolding machine for unfolding seedling boxes on the ground.

[0002]

2. Description of the Related Art In the seedling raising work of rice and vegetables, after germination, seedling boxes are arranged in a house (cured house) in units of several hundred to 1,000 sheets to perform greening and / or hardening treatment. Techniques for mechanization have been developed for efficient collection on narrow premises. As a technique to deploy and collect seedling boxes,
There is one disclosed in JP-A-7-107817. This technology is a traveling device that moves the aircraft back and forth,
A seedling box carrying unit on which a seedling box cart is placed, a seedling box transfer device that can selectively transfer a seedling box from the ground to the machine and a seedling box from the machine to the ground, and a seedling box on the machine A seedling box loading / unloading device that can selectively load the seedling box cart on the platform mounting section and lower the seedling box loaded in the seedling box truck on the platform mounting section onto the body. It is configured.

The seedling box conveying device has a pair of conveying belts on the left and right sides so that two seedling boxes can be simultaneously opened.

[0004]

In the above-mentioned prior art, each transport belt can transport and unfold only one seedling box at a time, and the efficiency of the unfolding operation of unfolding a plurality of seedling boxes side by side has not been considered. In addition, since a separating wire for recovery is provided at the front, it is difficult to accurately transfer the seedling boxes from the seedling box transport device to the ground.

According to the present invention, a plurality of seedling boxes brought in from the rear are arranged in the left-right direction and then unfolded at the same time, so that the unfolding operation efficiency is improved, and the seedling boxes can be reliably transferred to the ground by the front drive unit. It is an object of the present invention to provide a seedling box unfolding machine.

[0006]

A first concrete means for solving the problems in the present invention is to attach a support frame 5 to a traveling machine body 9 and to mount a transport frame 2 on a front portion of the support frame 5.
1 is supported so as to be able to swing up and down.
And a vertical transport means 24 for mounting a plurality of seedling boxes N on the transfer frame 21 in the left and right direction and transferring the seedling boxes N forward, and a seedling box N. A horizontal transport unit 25 that moves left and right from the seedling box loading side and is arranged on the vertical transport unit 24; the vertical transport unit 24 includes a driving unit 23 that pushes out a seedling box N at a front portion; 21
Is provided with a box delivery means 10 for supplying the seedling box N to the horizontal transport means 25 behind the box.

[0007] Thus, the seedling boxes N can be supplied from the box delivery means 10 to the horizontal transport means 25, arranged from the horizontal transport means 25 to the vertical transport means 24, and deployed from the vertical transport means 24 to the ground.
The seedling box N on the vertical conveying means 24 is reliably developed by the driving unit 23. A second specific means for solving the problem in the present invention is the first specific means, in addition to the first specific means, the vertical transport means 24 and the horizontal transport means 25 are provided on the transport frame 21 as a pair of left and right vertical transport means. 24 are separated by a passage forming dimension L.

As a result, when a plurality of seedling boxes N are unfolded left and right, a passage having a dimension L is formed at the center in the left and right directions.
A third specific means for solving the problem in the present invention is:
In addition to the first or second specific means, the transport frame 21 and the vertical transport means 24 are located between a position substantially corresponding to the side edge of the traveling machine body 9 and / or a position corresponding to the side edge of the traveling machine body 9 and the outer end. Is provided with a foldable connecting portion 35 for lifting the outer end side upward.

Thus, even if the vertical transport means 24 has a lateral width in which a plurality of seedling boxes N can be placed in the lateral direction, the lateral dimensions can be reduced by folding to enable access to a house or the like. Become.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a seedling box unfolding and collecting machine 1 which can be changed to a seedling box unfolding machine A and a seedling box collecting machine B as a seedling box to ground treatment machine. The seedling box unfolding and collecting machine 1 is configured such that two or more seedling boxes N on each side can be horizontally arranged in a horizontally elongated state while forming a sidewalk at the center, and can be unfolded side by side and simultaneously collected on each side.

The seedling box unfolding and collecting machine 1 includes a working unit 3
The work unit 3 is roughly divided into a deployment work unit 3A and a collection work unit 3.
B. In the following description, the front side is the side on which the seedling box N is deployed, and the working unit 3 moves backward when deployed and moves forward when collected.

The unfolding work unit 3A is shown in FIGS. 1 to 7, and includes a support frame 5 attached to the main unit 4, a vertical and horizontal transport mechanism (transport device) 6A having a rear portion pivotally connected to the support frame 5. , A tilting mechanism 7 provided on the support frame 5 side to tilt the vertical and horizontal transport mechanism 6A
And The collection work unit 3B is shown in FIGS. 1 and 8 to 11, and includes a support frame 5 attached to the main unit 4, a vertical and horizontal transport mechanism 6B having a rear portion pivotally connected to the support frame 5, and a support frame 5 side. And a tilt mechanism 7 for tilting the vertical and horizontal transport mechanism 6B, and a box pick-up mechanism 8 attached to the support frame 5 or the main unit 4 side.

The support frame 5 and the tilting mechanism 7 of the unfolding operation unit 3A and the recovery operation unit 3B are common, and the vertical and horizontal transport mechanisms 6A and 6B are alternatively used.
The box pick-up mechanism 8 is attached to the main unit 4
It is detachably fixed to the side. The main unit 4 includes a crawler-type traveling body 9, a box delivery unit 10 disposed on the traveling body 9, a box lifting / lowering mechanism 11 disposed across the box delivery unit 10, and a box lifting / lowering mechanism 11. It has a box loading / unloading mechanism 12 disposed on the rear side, and the support frame 5 and the tilting mechanism 7, which are common devices of the unfolding operation unit 3 </ b> A and the collection operation unit 3 </ b> B, are permanently installed on the traveling machine 9.

In FIG. 1 to FIG.
The support frame 5 common to the collection unit 3B and the collection unit 3B is formed by combining a horizontal member and a vertical member into a rectangular frame shape in a plan view. It is detachably fixed to the traveling machine body 9, and pivotally supports a bent portion of a substantially L-shaped tilting member 18 in side view via brackets 17 on the front left and right sides.

The tilting member 18 has a substantially L-shaped lower part in an arm shape and extends forward, and an upper part is connected to an actuator 19 such as a hydraulic cylinder. The actuator 19 is supported by the stay 16, but the box elevating mechanism 11
The arm may be tilted downward by extension. The support frame 5, the tilting member 18
The actuator 19 and the like constitute a tilting mechanism 7 of the vertical and horizontal transport mechanism (transport device) 6.

The support frame 5 may be formed by projecting a pair of left and right plate members from the traveling machine body 9, or may be formed by a tilting member 18.
May be formed by one arm member, and the actuator 19 may be provided between the arm member and the support frame 5. 1 to 7
, The vertical and horizontal transport mechanism 6A of the deployment work unit 3A
Is a transport frame 21A in which steel shapes are assembled vertically and horizontally, and a transport frame 2A
Two or more pairs, for example, five pairs of roller conveyors 22 and a driving roller 23 on the front side of the transport frame 21A in the left and right directions within 1A.
, And two sets of front and rear horizontal conveyance means 25 arranged on the center side in the conveyance frame 21A,
A pair of right and left vertical transport means 24 and horizontal transport means 25 are provided, and are symmetrical with respect to the center line of the traveling machine body 9.

The pair of left and right vertical transport means 24 are separated from each other by a dimension for forming the passage L. The roller conveyor 22 of each of the vertical conveying means 24 employs an idler roller, and two laterally long seedling boxes N can be placed on one set of roller conveyors 22 in front and behind. A roller 28 is provided on a rotating shaft 27 supported via a bracket 26 on the front side of the motor 3. The rotating shaft 27 is connected to a motor 3 via a transmission means 29 such as a chain transmission means on the side surface of the transfer frame 21 </ b> A.
It can be driven at 0.

The roller conveyor 22 may be a driving roller, but only the front driving roller 23 in the front conveying means 24 is a driving unit for moving forward. The roller conveyor 22 on the center side is located at a position where the seedling box N is carried in from the box delivery means 10 on the rear side, and a stopper (not shown) is provided at a front portion thereof so that the seedling box N can move forward. The seedling box N carried in is prevented from falling.

At the front end of the bracket 26, a grounding wheel 31 is provided which is an extension of each set of roller conveyors 22 and can be grounded.
Is supported. The grounding wheel 31 supports the front end of the vertical transport means 24 and also serves to push and align the seedling boxes N laid on the ground from behind. The lateral transport means 25 supports the sprocket freely on a central shaft 25A,
A sprocket is fixed to each of the left and right shafts 25B, a chain 32 is wound around the center and left and right sprockets, and an engaging member for engaging the seedling box N is provided on the chain 32. It is arranged in the gap.

The power from the motor 25C is transmitted in the opposite direction to each of the left and right shafts 25B. When the left and right chains 32 move in the opposite direction, the two front and rear seedling boxes N carried thereon are transferred. Push one box outward to the left and right. Therefore,
The horizontal transport means 25 moves the seedling box N carried thereon into one
By simply pushing the boxes, a predetermined number of seedling boxes N can be arranged on the vertical transport means 24, and the seedling boxes N are simultaneously placed on the right and left sides, so that the right and left weight balance in the vertical and horizontal transport mechanism 6A is well maintained.

A pair of left and right pivot shafts 33 are provided at the rear lower portion of the transfer frame 21A. The pivot shafts 33 are engaged with the engaging portions 15 of the support frame 5 from above so as to be freely detachable. You. The pivot shaft 33 in the engaged state is a substantially L-shaped tilting member 18.
, But may be shifted back and forth or up and down. The tip of the arm portion of the tilting member 18 is freely movable toward and away from a contact member 34 provided on the transport frame 21A, and the tilting member 18 is pivoted upward by the actuator 19 to move the transport frame 21A to the pivot shaft 33. The vertical and horizontal transport mechanism 6A is set to a substantially horizontal posture,
Is operated in reverse to swing the tilting member 18 downward, thereby lowering the transport frame 21A about the pivot shaft 33, and tilting the vertical and horizontal transport mechanism 6A to the front downward position where the grounding wheel 31 is in contact with the ground.

When the grounding wheel 31 is in contact with the ground, the tilting member 1
When the tilting member 18 is further moved downward slightly to separate the tilting member 18 from the transport frame 21A, the vertical and horizontal transport mechanism 6A enters a floating state that follows the unevenness of the ground. The transfer frame 21A
Wheels are provided at both left and right ends or in the middle of the
The weight of A may be supported by the wheel, and the ground contact wheel 31 may be slightly raised from the ground. Also, the vertical and horizontal transport mechanism 6A can transport the seedling box N back and forth and laterally by using only one of the left and right sides.

The transport frame 21A and the vertical transport means 24 of the vertical and horizontal transport mechanism 6A are foldably connected to a position substantially corresponding to the side edge of the traveling machine body 9 and a position between the position corresponding to the lateral edge of the traveling machine body and the outer end. Part 35 is formed and the folding connection part 3
Numeral 5 is foldable around the front-rear axis, and the rotating shaft 27 is also connected via a universal joint at a position corresponding to the fold connection part 35.

By folding the left and right vertical and horizontal transport mechanisms 6A at two locations in the direction of lifting the outer end side of the transport frame 21A upward, the working unit 3A is positioned within the front projection area of the main unit 4 as shown in FIG. And the whole seedling box unfolding and collecting machine 1 can pass if it is a frontage through which the main unit 4 can pass. Left and right vertical and horizontal transport mechanism 6
In A, the left and right positions of the folding connection portion 35 are slightly shifted,
When the left and right outer portions are folded, they are arranged vertically offset on the front side of the main unit 4 and do not collide.

When the width of the right, left, vertical and horizontal transport mechanism 6A is narrow, the folding connection portion 35 is formed at one of a position substantially corresponding to the side edge of the traveling body and a position between the position corresponding to the side edge of the traveling body and the outer end. You. 8 and 9, the collection work unit 3
The vertical and horizontal transport mechanism 6B of B is a transport frame 2 in which die steel is assembled vertically and horizontally.
1B and the central drive conveyor 37 in the transport frame 21B.
And vertical transport means 3 formed by side-side drive conveyor 38
9 and two sets of lateral transport means 40 arranged at positions overlapping the side drive conveyor 38 in the transport frame 21B.

The center drive conveyor 37 and the side drive conveyor 38 are symmetrical with respect to the center line of the traveling body 9, but the two sets of horizontal transport means 40 are shifted left and right by one box. The right and left central drive conveyors 37 of the vertical transport means 39 transmit the power from one motor 41 by a transmission means such as a chain transmission means, and the roller shaft of each central drive conveyor 37 has an outer side portion. The side drive conveyor 38 is connected to the roller shaft of the side drive conveyor 38 via a joint so as to drive the side drive conveyor 38 synchronously.

The center drive conveyor 37 is formed slightly longer behind the side drive conveyor 38 so that the seedling box N can be carried out to the box delivery means 10 at the rear. A notch 42 is formed on the outer side of the tip of the conveyor 38, and the front side of the transport frame 21 </ b> B is
8 so as not to interfere with the seedling box N on the ground that is not collected.

The horizontal transport means 40 includes motors 43A, 43
A chain is wound around a pair of sprockets driven by B, and an engaging member that engages with the seedling box N is provided on the chain. The chain is disposed in a roller gap of each side drive conveyor 38, Seedling box N carried on it
Is pushed onto the central drive conveyor 37 by one box. The left seedling box N can be moved to the rear end of the left driving conveyor 38, but the right seedling box N is provided with a stopper 45 at the rear of the right lateral conveying means 40 so that it does not move backward any more. Has become. The stopper 45 may be fixed or movable back and forth.

The vertical and horizontal transport mechanism 6B is also a vertical and horizontal transport mechanism 6A.
Similarly to the above, the transport frame 21B and the vertical transport means 38 have a foldable connecting portion 35 formed at a position substantially corresponding to the side edge of the traveling machine body 9, and the foldable connecting portion 35 can be folded around the front-rear axis. A universal joint that connects the center side drive conveyor 37 and the side side drive conveyor 38 of the vertical conveying means 39 corresponds to the universal joint.

The left and right vertical and horizontal transport mechanisms 6B are folded at one place in the direction of lifting the outer end side upward, thereby obtaining the configuration shown in FIG.
Similarly to the above, if the working unit 3B is within the front projection area of the main unit 4 and the frontage through which the main unit 4 can pass, the entire seedling box unfolding and collecting machine 1 can pass. The box pick-up mechanism 8 described later is made foldable by the foldable connecting portion 35 or is detached from the traveling machine body 9.

In the vertical and horizontal transport mechanism 6B shown in FIG. 9, four horizontally long seedling boxes N are simultaneously placed on the vertical transport means 39 and moved rearward, and the right two seedling boxes N are stopped by the stopper 45. After that, the two left seedling boxes N are moved to the rear end of the transfer frame 21B. Then, the two right seedling boxes N are moved toward the center by the right side lateral transport means 40, and the left two seedling boxes N are shifted rearward therefrom.
The seedling boxes N are moved to the center side by the left lateral conveying means 40, and a total of four seedling boxes N are arranged at the center of the conveying frame 21B in the front, rear, left and right, and the center side driving conveyor 37 is driven again in that state. The entire seedling box N out.

When a total of four seedling boxes N are collected simultaneously, two right and left seedling boxes N, the lateral transport of the left and right seedling boxes N is substantially symmetric, and the weight balance is improved. 8 to 11, the box pick-up mechanism 8 can pick up four seedling boxes N in one row at a time corresponding to the vertical and horizontal transport mechanism 6B, and protrudes the stay from the box elevating mechanism 11 or the support frame 5 or the like. A front frame 51 attached to the stay and projecting forward, a plurality of hooks 52 provided on the front frame 51 in the left-right direction, and the seedling box forcibly flipping the hooks 52 upward and rearward. N and a stopper means 57 for restricting the operation of the forced release means 56.
A retracting means 58 forcibly releasing the stopper means 57 and retracting the hooking tool 52;
Has a return means 59 for returning to a position at which the camera substantially drops, and a control means 65 for controlling the operation.

The hook 52 is attached to the support shaft 54 provided on the corner member 51A of the front frame 51 with respect to one seedling box N.
The book is freely and freely swingably fitted, and the lower part thereof forms a hooking claw 52A having a substantially L-shape (hook shape) in side view.
With the hook claw 52A substantially grounded (state A in FIG. 10), the main unit 4 is hooked from below onto the peripheral edge Na of each seedling box N by the forward movement of the upper part as the main unit 4 moves forward.

The state in which the hook 52 is hooked (FIG. 1)
(B), the seedling box N does not move, so that the seedling box N moves in an arc around the upper part, and the rear part of the seedling box N is lifted around the front part by the arc movement upward and backward (state C in FIG. 10). Then, the hook 52 is located above the front of the vertical and horizontal transport mechanism 6B in a state where the seedling box N is lifted (state C in FIG. 1). When the upper portion of the hook 52 further advances from this state, it swings by a certain angle or more. Then, the peripheral edge Na comes into contact with the upper part of the hook claw 52A, the hook claw 52A comes off from the peripheral Na by the leverage (natural departure angle, two states in FIG. 10), and the seedling box N falls. It is placed on the vertical and horizontal transport mechanism 6B.

The hook 52 is provided with a hook 52 by leverage.
Before the A deviates from the peripheral edge Na, that is, before the swing angle becomes the spontaneous detachment angle, the forcible detaching means 56 forcibly jumps up and detaches (forcible detachment angle). The mechanism and operation of forcibly detaching the hook 52 and returning it to the set position will be described below.

The collection work unit 3B is moved forward so as to face the seedling boxes N arranged side by side. At this time, if the sensor 65A detects the flip-up member 60 or the sensor 65B does not detect the flip-up member 60, the hooking tool 22 is in the substantially hanging state A, so that the working unit 3B is moved forward without change. Then, the motor 64 is rotated forward by one through the control unit 66, the return means 59 is driven, the flip-up member 60 is pivoted downward by the set lever 59A, and the flip-up member 60 is operated by operating the stopper means 57. It is held at the set position and detected by the sensor 65A.

When the hook 52 is set in the substantially hanging state A, the recovery operation unit 3B starts to move forward and the hook 5
2 is dragged, and the hook claw 52A is hooked on each seedling box N that has been deployed. The rear of the seedling box N is lifted around the front end, and the hook 52 swings to a certain angle while drawing an arc trajectory upward and rearward around the support shaft 54, and immediately before the spontaneous departure angle is reached, the hook 52 Is the stopper member 62
Abuts on the release lever portion 62A and rotates it.

When the stopper member 62 is released, the jumping-up member 60 is shockedly jumped up by the resilience of the urging member 61, and the entire hook 52 is forcibly jumped up.
A is removed from the seedling box N. As a result, the rear portion of the seedling box N is dropped onto the vertical and horizontal transport mechanism 6B. In this way, the seedling box N is lifted by the plurality of hooks 52 corresponding to each seedling box N, transferred onto the vertical and horizontal transport mechanism 6B, and the seedling box N is completely mounted on the vertical and horizontal transport mechanism 6B. After watching, the forward button is pressed, or after a set time from when the sensor 65B detects the flip-up member 60, the motor 64 is rotated by one forward direction, the return means 59 is driven, and the flip-up member 6 is moved by the set lever 59A.
0 is pushed down, the jumping-up member 60 is overrun, returned to the set position, the set lever 59A is raised, and the box pick-up mechanism 11 performs the seedling box pick-up operation again.

When the collection of the required seedling box N is completed, or when the work unit 3B is moved backward for some reason, when the backward button is pressed, the sensor 65A detects the jumping member 60 or the sensor 65B jumps. Raising member 6
If 0 is not detected, the hooking tool 52 is in the hanging state A. If the working unit 3B is moved backward as it is, the hooking tool 52 in the dragged state will bite into the ground. The motor 64 is rotated by one reverse to drive the retracting means 58.

The short rotating arm 64A swings the release lever 58A by reversing to push the release lever portion 62A of the stopper means 57, release the stopper member 62, and flip up the flip-up member 60, so that the full hook 52 Is forcibly lifted and evacuated. 2 to 9, the main unit 4
The upper box delivery means 10 are located in front of the traveling machine body 9 in a pair of right and left, and each box delivery means 10 is a roller type first moving means 6.
8, a chain-type second moving means 69, a roller-type receiving means 70, and a divider 73, all of which may be provided in the traveling body 9, but the chain-type second moving means 69 and the roller-type receiving means The means 70 is supported by the support frame 5.

The power from one motor 71 at the center is transmitted to the roller shafts of the first left and right moving means 68 via the chain transmission means and also to the second right and left moving means 69.
The second moving means 69 has an engagement piece 72 provided on the chain, and is configured to hook and push the front and rear ends of the seedling box N. The receiving means 70 is moved by the second moving means 69. Box N is received.

The box delivery means 10 includes a main unit 4
When the unfolding work unit 3A is mounted on the first transfer unit 68, the seedling box N placed on the first transfer unit 68 is pushed by the second transfer unit 69 onto the vertical and horizontal transport mechanism 6A, and the collection work unit 3B is mounted. In this case, the seedling box N sent by the vertical transfer means 39 of the vertical and horizontal transfer mechanism 6B is moved to above the first transfer means 68 via the second transfer means 69, and the seedling box N with the vertical and horizontal transfer mechanisms 6A, 6B is moved. Delivery.

The second moving means 69 to the first moving means 6
When the seedling box N moves to the position 8, the divider 73 located at the rear portion between the left and right second moving means 69 sets the left and right intervals of the seedling box N, and the seedling box N is properly regulated with respect to the inner and outer receiving members 79A and 80A. Modify to be in position. The box delivery means 10 comprises:
The first moving means 68 or the second moving means 69 may be formed to be long, and may be constituted by only one. The first moving means 68 and the second moving means 69 may be driven by separate motors. .

The box raising / lowering mechanism 11 is shown in FIGS. 1 to 5, 8 and 9, and is disposed over the first moving means 68 of the left and right box delivery means 10, and has four seedlings in total. The box N can be moved up and down at intervals, and when the seedling box is unfolded, two seedling boxes N are supplied to each of the left and right first moving means 68, and at the time of collecting the seedling box, the left and right first moving means 68 are supplied. From seedling box N
Are picked up two at a time, and are delivered to a box loading / unloading mechanism 12 arranged on the rear side.

The box raising / lowering mechanism 11 includes a mechanism frame 76 fixed to the traveling machine body 9 and a box multi-stage lifting / lowering mechanism which supports the left and right seedling boxes N one at a time vertically by supporting the mechanism frame 76. Means 77 and the whole seedling box N on the box multi-stage elevating means 77
And pusher means 78 for pushing out the rearward. The pusher means 78 is used only during the seedling box collection operation, and may be detachable from the mechanism frame 76.

The box multi-stage lifting / lowering means 77 is a horizontally arranged seedling box N
Has a left-right symmetrical structure so that it can be moved up and down at the same time as the front and rear two and the left and right at the same time. Two sets of front and rear seedling boxes N are received by the receiving member 79A and the receiving members 80A provided on the front and rear outer chains 80.

The receiving members 79A and 80A are made of an L-shaped angle member when viewed from the front, and can be lowered and transferred to the first moving means 68 while holding the seedling box N. By doing so, the seedling box N on the first moving means 68 can be picked up while being raised. Inner / outer chain 7
9 and 80 are hung on a sprocket supported by a mechanism frame 76, while the inner chain 79 is provided with a box multi-stage elevating means 77.
Since there is little space for winding around the center part of the outer chain 80, as shown in FIG.

The pusher means 78 has an actuator 82 such as a hydraulic cylinder supported by a mechanism frame 76, and a pushing member 83 provided on a cylinder rod or the like of the actuator 82. The pushing member 8 is actuated by the actuator 82.
3 can be pushed between the inner and outer receiving members 79A and 80A, and the seedling box N lifted from the first moving means 68 by the box multistage elevating means 77 during the collection operation is moved backward in a multistage state with a vertical interval. It can be extruded all at once.

The box loading / unloading mechanism 12 disposed at the rear of the main unit 4 is substantially a mechanism dedicated to unfolding work.
At the time of the collection operation, it plays a role of forming an arrangement space for the nursery rack 85. However, the box in / out mechanism 12 moves the vehicle 9 during the unfolding operation.
You may leave from. Figures 1-3, 8, 9, 12-
In FIG. 18, the box loading / unloading mechanism 12 has four pillars 88 erected on a base 87 fixed to the traveling machine body 9 and front and rear pillars 88.
A support frame 86 is formed by connecting the upper portions, and a stack box separation device 91 is provided on the support frame 86,
The stacked seedling boxes N placed on the cradle 89 can be stored in the internal space.

The cradle 89 is for transporting the seedling boxes, on which two sets of front and rear seedling boxes N arranged in a horizontal direction are set. In the four seedling boxes N in front, rear, left and right, a gap is formed between the boxes so that a hook 97 described later can enter. Guide columns 88A are arranged in the four columns 88, and the holding frame 92 is guided by the guide columns 88A so as to be able to move up and down. On the left and right sides of the support frame 86, a chain elevating means 93 is provided. The holding frame 92 is connected to a chain 93A of the chain elevating means 93, and the power from a motor 94 is transmitted through a transmission means 95. By driving the chain 93A by transmission, the holding frame 92 can be moved up and down in a horizontal posture.

The stacking box separating device 91 has a total of four
From the holding frame 92 which moves up and down with respect to the stack of the seedling boxes N, the claw holders 9 correspond to the left and right opposing sides of each seedling box N.
6 and drop the seedling box N on the nail holder 96 via the shaft 99.
A pair of hooks 97 for hooking the left and right opposite sides are pivotally supported. The hook 97 is formed by protrusions at both front and rear ends of the periphery N of the seedling box N.
a can be hooked.

The claw holder 96 is provided with a stopper 98 for restricting the hanging claw 97 from swinging downward from a substantially horizontal posture, and this stopper 98 constitutes a hanging claw posture control means. In FIG. 17, when the hanging claw 97 descends from above with respect to the peripheral edge Na of the opposite side of the seedling box N at the top of the stack, it swings upward and escapes (b state) when hitting the peripheral edge Na, and rises from below. The claw attitude control means is maintained in a substantially horizontal attitude and is caught on the peripheral edge Na (state c).

The claw holder 96 has a front-view L-shaped receiving rail 100 extending across the seedling box N of the front and rear set, which is pivotally supported via an L-shaped bracket 100a and a pivot shaft 101. Abutment arm 1 on the bracket 100a
02, which comes in contact with a cam (operating member) 103 provided on the support post 88 when the support rail 10 is lifted.
0 is swung upward from the dotted line position to the solid line position in FIG.

The cam 103 is provided on the left and right columns 88 and is not located at the center of the stacking box separating device 91. Therefore, the contact arm 102 is also provided on the left and right outer L-shaped brackets 100.
a and not on the center side, and therefore, the left outer receiving rail 100 and the right inner receiving rail 100 are separated from the right outer rail material 100 and the left inner receiving rail 100 by:
The inner receiving rails 100 are connected by the interlocking rods 105, and the inner receiving rails 100 are swung in conjunction with the swinging of the outer receiving rails 100.

An operating member is formed by the contact arm 102 and the cam 103 and the like.
The receiving means 104 is constituted by the like, and after the hook 97 engages with the seedling box N and lifts, when the hook further rises, the contact arm 102 engages with the cam 103 and the receiving rail 100 swings. The receiving rail 100 receives the two front and rear seedling boxes N in place of the hanging claws 97 (state d in FIG. 17).

On the holding frame 92, a receiving rail 100
There are provided a pair of right and left pushing means 107 for pushing forward and backward the two seedling boxes N received before and after. This pushing means 1
07, a chain is wound around the front and rear shafts 108 and 109 supported on the holding frame 92 via the front and rear brackets, and the pushing plate 110 which comes into contact with the rear peripheral edge Na of the seedling box N on this chain.
, And driven by the motor 111 on the holding frame 92 via the power transmission means 112.

The pushing means 107 simultaneously pushes the two front and rear seedling boxes N on the receiving rail 100 in the forward direction, and the inner and outer receiving members 79A, 80A located above the box multistage elevating means 77.
Transfer to As described above, the vertical and horizontal transport mechanisms 6A, 6B,
When the box delivery means 10, the box lifting / lowering mechanism 11, the box loading / unloading mechanism 12 and the like process the seedling boxes N as a set of two front and rear, processing can be performed at a higher speed than in the case of processing one seedling at a time.

The box loading / unloading mechanism 12 uses a hydraulic cylinder in place of the chain lifting / lowering means 93, or raises / lowers the stacked seedling boxes N instead of raising / lowering the holding frame 92.
The pushing means 107 may be formed by a hydraulic or pneumatic cylinder like the pusher means 78. The operating member may be formed by a pneumatic cylinder or a solenoid. In this case, the rail 1 receives the seedling box N lifted by the hook 97 at any position above the stacked seedling box N.
00, and can be pushed by the pushing means 107 to the box multi-stage elevating means 77.

During the collection operation, the box loading / unloading mechanism 12 raises the stacked box separating device 91 to the highest position.
A seedling rack 85 is stored and placed on a base 87 below the base 87.
The seedling raising shelf 85 has a receiving bar 85A that has substantially the same number of stages as the box multi-stage lifting / lowering means 77 and faces the same.
8, the front, rear, left and right extruded from the box multi-stage lifting / lowering means 77
The seedling boxes N are simultaneously received at all stages and taken out of the machine by a forklift or the like.

Next, the seedling box developing machine 1 shown in the above embodiment is set on the main unit 4 so that the developing work unit 3A can be used, and the seedling box developing machine A is used. The method will be described. A total of 4 seedling boxes N
For example, a cradle 89 placed in a state of being stacked in 30 stages
Is transported by a forklift and inserted into the box access mechanism 12, and the seedling box deployment machine A is moved to the end of the deployment area in the house.

The chain lifting / lowering means 93 of the box loading / unloading mechanism 12 is operated, and the upper / lower left / right / right 4
The seedling boxes N are picked up, the seedling boxes N transferred to the receiving means 104 are pushed forward by the pushing means 107 and supplied to the box elevating mechanism 11. The box raising / lowering mechanism 11 receives the seedling boxes N sequentially supplied from the box loading / unloading mechanism 12 with the members 79A and 80A, and intermittently descends to move the first moving means 6 at the lowest position.
Move to 8.

The first moving means 68 supplies the received seedling box N to the vertical and horizontal transport mechanism 6A via the second moving means 70. The seedling boxes N carried in the right and left two sets are moved laterally by the horizontal conveying means 25 by one seedling box N in the left-right direction. 2
4 to the left and right ends. When the seedling boxes N are supplied to the entire area up to the left and right ends of the vertical conveying means 24, the tilting mechanism 7 operates to tilt the vertical and horizontal conveying mechanism 6A forward and down, and deposits the seedling boxes N on the ground. Then, the drive roller 23 is driven to reliably transfer the rear seedling box N to the ground. This delivery is performed while the traveling body 9 moves backward.

Thus, for example, five seedling boxes N are arranged on the left and right sides of the passage L. Next, the seedling box ground treatment machine 1 is transferred to the main unit 4 by the collection work unit 3.
A method of collecting seedling boxes in a case where B is set in a usable state and used as a seedling box collecting machine B will be described.

The traveling machine 9 is advanced in a state where the vertical and horizontal transport mechanism 6B is inclined downward, and the hooks 52 of the box pick-up mechanism 8 hook the peripheral edges Na of the four seedling boxes N side by side. And lift the rear end of the seedling box N,
The document is transferred to the vertical and horizontal transport mechanism 6B. When the vertical transport means 39 is operated to move the four seedling boxes N backward while the vertical and horizontal transport mechanism 6B is in a substantially horizontal posture by the tilting mechanism 7, the two left seedling boxes N
Moves to the rear end of the vertical transport means 39, while the right two seedling boxes N stop moving at the stopper 45 in the middle of the vertical transport means 39, and when the left and right horizontal transport means 40 is operated in this state, The left and right seedling boxes N are gathered at the center, and two sets of front and rear are made in pairs.

Then, the vertical transporting means 39 is operated again to move the four seedling boxes N rearward by the second moving means 69, and the position of the seedling boxes N is corrected by the divider 73 so that the seedling boxes N are brought to their normal positions. It is sent to the first moving means 68 and supplied to the lower part of the box lifting mechanism 11. The box lifting / lowering mechanism 11 receives the seedling box N
Is received by intermittently raising the receiving members 79A and 80A, and is pushed backward by the pusher means 78 in a state where the seedling box N is inserted in all the stages.

A seedling rack 85 is arranged in the box access mechanism 12 in advance, and the seedling box N is mounted on all the receiving bars 85A of the seedling rack 85.
To store. The seedling rack 85 is lowered by a forklift and transported to a required position. Note that the present invention is not limited to the above embodiment, and can be variously modified. For example, the seedling box unfolding machine A and the seedling box collecting machine B are configured such that a horizontally long seedling box N is set in front and rear two sets, and a pair of right and left seedling boxes N is processed as a set of four in total. However, the seedling box N is arranged vertically long, the pair of left and right devices is constituted by only one, the box delivery means 10, the vertical transport means 24, and the like.
Alternatively, the seedling boxes N may be supplied to the horizontal transporting means 25 one by one instead of the front and rear sets, or the seedling boxes N may be artificially supplied to the box delivery means 10 without providing the box elevating mechanism 11. .

[0067]

According to the present invention described in detail above, the seedling boxes N are supplied from the box delivery means 10 to the horizontal transport means 25, arranged side by side from the horizontal transport means 25 to the vertical transport means 24, and placed on the ground from the vertical transport means 24. It can be unfolded, and the vertical conveying means 2
The seedling box N on the top 4 can be reliably developed, and a plurality of passages having a dimension L can be formed at the center on the left and right sides when a plurality of left and right seedling boxes N are deployed. Also, the transport frame 2
1 and the vertical transport means 24, even if the vertical transport means 24 has a lateral width capable of mounting a plurality of seedling boxes N in the lateral direction, reduce the lateral dimensions by folding, and enter and exit a house or the like. Will be possible.

[Brief description of the drawings]

FIG. 1 is an explanatory side view showing an entire seedling box-to-ground treatment machine of the present invention.

FIG. 2 is a side view of the entire seedling box unfolding machine.

FIG. 3 is a plan view of the seedling box unfolding machine.

FIG. 4 is a front view of the seedling box unfolding machine.

FIG. 5 is a plan view of a main part of the seedling box unfolding machine.

FIG. 6 is a side view of the support frame and the tilting mechanism.

FIG. 7 is a plan view of a support frame and a transport frame.

FIG. 8 is a side view of the entire seedling box collecting machine.

FIG. 9 is a plan view of the seedling box collection machine.

FIG. 10 is a side view of the box pick-up mechanism.

FIG. 11 is an explanatory front view of the box pick-up mechanism.

FIG. 12 is a rear view of the box access mechanism.

FIG. 13 is an enlarged rear view of a main part of the box access mechanism.

FIG. 14 is a plan view of the box access mechanism.

FIG. 15 is a side view of the box access mechanism.

FIG. 16 is a rear view of a main part of the stacking box separating device.

FIG. 17 is an explanatory diagram of a stacking box separating operation.

FIG. 18 is a rear view in which a nursery rack is arranged in the box access mechanism.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 seedling box unfolding and collecting machine 3 working unit 4 main unit 5 support frame 6 vertical and horizontal transport mechanism 7 tilting mechanism 8 box pick-up mechanism 9 traveling body 10 box delivery means 11 box elevating mechanism 12 box access mechanism 21 transport frame 91 stacking box separating device A Seedling box unfolding machine B Seedling box collection machine N Seedling box

Claims (3)

[Claims] 1. A tilting mechanism for attaching a support frame to a traveling machine body, supporting a rear portion of a transport frame at a front portion of the support frame so as to be able to swing up and down, and tilting the transport frame forward and downward from a substantially horizontal posture on the support frame. Provided, vertical transport means for placing a plurality of seedling boxes on the transport frame in the left-right direction and transporting forward,
Horizontal transport means for moving the seedling boxes from the seedling box loading side to the left and right sides and arranging them on the vertical transport means, the vertical transport means having a drive unit for pushing out the seedling boxes at the front, and Characterized in that a box delivery means for supplying a seedling box to the horizontal transport means is provided in the box. 2. The seedling box development according to claim 1, wherein the vertical transport means and the horizontal transport means are provided in a pair on the right and left sides of the transport frame, and the right and left vertical transport means are separated from each other by a passage forming dimension. Machine. 3. The folding device according to claim 1, wherein the transport frame and the vertical transport unit are configured to lift the outer end side upward at a position substantially corresponding to a side edge of the traveling body and / or a position between a position corresponding to the side edge of the traveling body and the outer end. The seedling box unfolding machine according to claim 1, further comprising a connecting portion.