JP2001258395A - Apparatus for transferring seedling trays between the ground and prescribed heights - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain various kinds of advantages by transferring the seedling trays between the ground and the required heights for spreading and collecting them by means of one conveyer. SOLUTION: The objective apparatus is equipped with an inclined conveying mechanism 4 that has a back-rising conveyer 3 which is pivotally mounted to the tractor 2 at its half-way positions of the front part and the rear part and conveys the seedling trays N and the lift 24 that floats up the front part of the conveyer 3. The lift 24 is arranged to the rear of the tractor 2 whereby the conveyer 3 is made movable downward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling box ground treatment apparatus for collecting and expanding seedling boxes deployed in a nursery.

[0002]

2. Description of the Related Art As an apparatus for collecting and deploying seedling boxes, there is a technique disclosed in Japanese Patent Application Laid-Open No. H11-75554. A conveyor mechanism, elevating means for raising the front part of the conveyor means, a pick-up mechanism for lifting a seedling box located in front of the inclined conveyor mechanism and deployed on the ground and placing the seedling box on the conveyor means, and an inclined conveyor mechanism. It is provided with a vertical and horizontal transport mechanism for transferring the seedling boxes, and a transfer mechanism for transferring the seedling boxes between the vertical and horizontal transport mechanism and the rear side.

[0003]

In the prior art, the seedling box is picked up from the ground and lifted to a required height to be mounted on a trolley or the like. Until the seedling box is unfolded from the trolley to the ground, it is performed only by the inclined conveyor mechanism. In addition, a vertical / horizontal transport mechanism for placing a seedling box, moving up / down, and transporting back and forth is required, and the apparatus is large-scale. Along with this, the structure is complicated, it is difficult to configure compactly, it becomes heavy,
There are problems such as high cost, slow processing speed, and difficulty in operation.

[0004] It is an object of the present invention to provide a seedling box-to-ground treatment apparatus which can solve such problems of the prior art. The present invention provides various advantages by pivoting a rearwardly inclined conveyor means for transporting a seedling box on a moving vehicle body halfway in the front and rear thereof to cover the ground and a required height with one conveyor means. It is an object of the present invention to provide a seedling box-to-ground treatment apparatus which can enjoy the above-mentioned.

[0005]

SUMMARY OF THE INVENTION The present invention basically provides an inclined conveyor mechanism having, on a moving vehicle body 2, a conveyor means 3 which is pivotally supported at an intermediate position in the front and rear direction and which conveys a seedling box N and which is inclined upward and backward. And lifting means 24 for lifting the front part of the conveyor means 3. The first specific means for solving the problem in the present invention is that the elevating means 24 is disposed at the rear of the moving vehicle body 2 so that the rear of the conveyor means 3 can be lowered.

As a result, the conveyor means 3 can be easily moved up and down, workability is improved, and the arrangement of the elevating means 24 is simplified and optimized. A second specific means for solving the problem in the present invention is to connect the tip of the upwardly swingable link 14 to the middle of the conveyor frame 55 of the conveyor means 3 in the front-rear direction, and to connect the lifting shaft 76 to the rear thereof. In other words, the base of the link 14 is connected to the movable vehicle body 2 and the support base 78 for receiving the elevating shaft 76 is projected above the link base connection point.

[0007] This makes it possible to easily raise and lower the front portion of the inclined conveyor mechanism 4 when the truck is loaded and transported, and to make the front portion of the conveyor means 3 in a floating state during the collection / deployment operation. Thus, the workability is improved, and the arrangement structure of the lifting / lowering means 24 is simplified and optimized. According to a third specific means for solving the problem in the present invention, the moving vehicle body 2 has a pair of left and right crawler traveling devices 54.
The control means 12 for controlling the moving vehicle body 2 and the inclined conveyor mechanism 4 is disposed therebetween.

[0008] This makes the control means 12 more compact than when the control means 12 is arranged on the front side of the seedling box ground treatment apparatus, and improves workability in the house. A fourth specific means for solving the problem in the present invention is to provide a support frame 41 that straddles the conveyor means 3 on the moving vehicle body 2, That is, the driving device 42 is disposed. Thereby, the degree of obstacle of the driving device 42 in the kamaboko-shaped house is reduced, and workability is improved.

A fifth concrete means for solving the problem in the present invention is that a guide means 48 for guiding the transfer of the seedling boxes N at both left and right ends is provided on the left and right sides of the conveyor means 3 so that the position in the left and right direction can be adjusted. It is provided. by this,
The transport of the seedling boxes N becomes orderly, and the seedling boxes N can be prevented from falling off from the conveyor means 3, and the type of seedling boxes N to be used and the degree of freedom in arrangement can be increased, or the number of seedling boxes N to be transported at the same time can be changed. Become. A sixth specific means for solving the problem in the present invention is that the inclined conveyor mechanism is provided with a ground roller 50 extending substantially the entire width of the conveyor means 3 below a front portion of the conveyor means 3.

The movement of the front part of the conveyor means 3 becomes smooth, and the relation with the sheet is improved particularly when the sheet is laid on the ground. A seventh concrete means for solving the problem in the present invention is to lay a sheet 82 on the front side of the moving vehicle body 2 and behind the front end of the conveyor means 3 prior to the deployment of the seedling box when the seedling box is deployed. Means 8
3 is provided so that the left and right positions can be changed.
Is formed wider than the conveyor means 3. This makes it possible to lay the sheet wider and offset than the width of the expanded seedling box, and by expanding the seedling box N later on the protruding sheet portion, the width of the humanitarian and the width of the expanded seedling box are reduced. It becomes possible to make the optimum state according to the width of the existing house.

Eighth specific means for solving the problem in the present invention is that a truck 26 for transferring the seedling box N to the inclined conveyor mechanism 4 is connected to the rear part of the moving vehicle body 2 in a state where the front wheels are lifted up. In order to make the 26 seedling box mounting surface 39 inclined forward and backward, the front and rear support columns 101 are vertically adjustable. This makes it possible to tilt the seedling box mounting surface 39 of the cart 26 with respect to the conveyor means 3 forward and downward when the seedling box is unfolded and rearward and downward when collecting the seedling boxes. Become smooth.

A ninth concrete means for solving the problems in the present invention is a seedling deployed on the ground in front of the inclined conveyor mechanism 4 in addition to any one of the first to eighth concrete means. A pick-up mechanism 7 for lifting the box N and placing it on the conveyor means 3 is provided. Thus, one seedling box-to-ground treatment device can be used for both seedling box development and seedling box collection. A tenth specific means for solving the problem in the present invention is that the pick-up mechanism 7 includes a pick-up member 15 which is placed on the conveyor means 3 while being lifted by being hooked on the edge Na of the seedling box N deployed on the ground. A switching mechanism 16 for advancing the pick-up member 15 from the operating position of engaging with the seedling box edge Na and swinging backward while engaging with the seedling box N;
Action buffer member 10 that comes into contact when 5 is in the action position
5 and a bending buffer member 1 that comes into contact when the bending posture is attained.
06 is provided.

As a result, the pickup member 15 can be set to the working position or the bent position while reducing noise.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 11, the seedling box ground treatment apparatus 1 is roughly divided into a moving body 2, an inclined conveyor mechanism 4 disposed on the moving body 2, and a pick-up mechanism 7 projecting forward from the inclined conveyor mechanism 4. And one or more carts 26 are detachably connected to the moving body 2. The picking-up mechanism 7 sets the seedling box ground treatment device 1 to the seedling box N
It is necessary at the time of the collection operation of the seedling, and when the seedling box ground treatment device 1 is used as a machine dedicated to the unfolding operation, it may be removed.

The moving vehicle body 2 has a substantially rectangular frame-like body 5 in plan view.
3 is provided with a pair of crawler traveling devices 54 on the left and right sides,
A support frame 41 is set up over the inclined conveyor mechanism 4 from 3, and driving devices 42 such as an engine, a fuel tank, and a generator are mounted on the support frame 41. The left and right crawler traveling devices 54 are driven by an electric motor, but may be driven by a hydraulic motor by mounting a hydraulic pump on the support frame 41. The inclined conveyor mechanism 4 has a rectangular conveyor frame 55 provided with rollers at the front end, rear end, and midway, and a belt 56 is stretched over the rollers to form a conveyor means 3 having a slope rising rearward.
It is driven by a drive motor 57 provided at the rear part so as to be capable of normal and reverse rotation.

The conveying speed of the conveyor means 3 can be synchronized or asynchronous with the moving speed of the moving vehicle body 2 through the control means 12, and the control means 12 makes the conveyor means 3 optimal for seedling box processing. The transport speed can be set. The control means 12 can be set and operated by remote control means or radio control type remote control means. The control means 12 controls the moving body 2 and the inclined conveyor mechanism 4 and, when the pick-up mechanism 7 is provided, can also control the picking-up mechanism 7. The control box is provided between the left and right crawler traveling devices 54 of the moving body 2. It is attached to the body 53.

Although the control means 12 can be mounted beside the driving device 42 on the support frame 41, the arrangement of the control means 12 between the left and right crawler traveling devices 54 can make the entire device compact. If the control means 12 is not provided on the support frame 41, the area occupied by the device becomes small, and the driving device 4
2 can be arranged substantially at the center of the support frame 41 in the left-right direction. Arranging the driving device 42 substantially at the center in the left-right direction of the support frame 41 causes the shape of the seedling box-to-ground processing apparatus 1 to be tapered upward when viewed from the front. The support frame 41 can be brought closer to the arc-shaped house roof,
That is, the degree of disturbance (obstruction) by the driving device 42 is reduced, the seedling boxes N can be deployed and collected to the left and right corners in the house, and the site area can be used more effectively.

In FIG. 5, a mounting bracket 55a is provided at a lower front portion of the conveyor frame 55, and the bracket 50a is supported by the mounting bracket 55a via a pivot pin 50b.
Is rotatably supported, and the angle is set by a setting pin 50c. The ground roller 50 is provided with a setting pin 50.
The vertical position can be adjusted by changing the position of c, and is formed to have a length that covers substantially the entire width of the conveyor means 3. Is performed smoothly.

A pair of right and left sled bodies can be used instead of the ground roller 50. However, if the sled body is used, the ground pressure increases and the body comes into sliding contact with the ground. If the seedling box is moved over during collection, the sheet may be damaged or rattled, making it difficult to perform the collection operation normally and smoothly. The use of the ground roller 50 can eliminate all of these problems. When the seedling box N is unfolded while laying the sheet, the grounding roller 50 presses the sheet prior to the seedling box N, so that the air under the sheet is pushed out and the sheet is laid in an appropriate state. enable.

When the ground roller 50 is in contact with the ground, the front end of the conveyor means 3 is placed slightly above the ground. In this grounding state, the conveyor means 3 is inclined upward from the front end to the vicinity of the rear part, is bent near the rear part, and the rear part is arranged substantially horizontally. The inclined conveyor mechanism 4 includes a bracket 5 at the front end of the conveyor frame 55.
The rotation shaft 58 is supported by projecting the projection 8a, so that power can be transmitted from the conveyor means 3 via the transmission means 11. The transmission means 11 includes a chain winding transmission means, an electromagnetic clutch, and the like, and transmits the power of the conveyor means 3 synchronously (at a constant speed) or asynchronously (increase / decrease). The rotation shaft 58 can be stopped even during the driving.

The rotating body 9 is mounted on the rotating shaft 58 to constitute lifting means 5. The rotator 9 is formed of a rod-shaped member having an elliptical cross section, and has a protruding portion provided on an outer surface of a bulging portion (diameter end side) at an axial interval.
The axial spacing of the projections is set shorter than the length of the short side of the seedling box N, and is arranged so that two or more projections can engage with one seedling box N. It is engaged with the edge Na between the vertical ribs Nb around the box N. In addition, a trailing projection is engaged with the bottom edge of the seedling box N lifted by the preceding projection.

The rotating body 9 of the lifting means 5 comes closer to the ground than the front end of the conveyor means 3 in a state where the grounding roller 50 is in contact with the ground, and rotates clockwise in FIG. The protrusion is engaged with the edge Na of the box N and lifted, and the lifted seedling box N is placed on the conveyor means 3 by the forward force of the moving vehicle body 2. Since the lifting means 5 is firmly supported by the conveyor frame 55 and is not far from the ground roller 50, the seedling box N can be lifted strongly, and the roots of the seedlings in the seedling box N are entangled with the ground. Is also lifted and transported.

Further, since the rotating body 9 rotates, the seedling box N can be lifted continuously, and even if one projection fails to engage, the succeeding projections can be involved in the engagement in sequence, and the seedling box is lifted. Can be done very reliably. Further, when the rotating body 9 has the protruding portion located in the outer circumferential rotation region of the largest diameter portion, even if a sheet is laid under the seedling box N, the sheet is not hooked and entangled. On the left and right sides of the conveyor means 3,
Guide means 48 for guiding the transfer of the seedling boxes N at both the left and right ends are provided so as to be adjustable in the left-right direction so as to protrude outward.

The left and right guide means 48 are shown in FIGS.
As shown in FIG. 8, a guide member 95 formed of a plate, a rod, or the like having a length substantially the entire length of the conveyor means 3 is supported on the conveyor frame 55 by a pair of front and rear parallel links 96. One of the parallel links 96 (rear side) is set at an angle by a setting member 97 provided on the conveyor frame 55, and by changing the angle of the parallel link 96, the guide member 95 moves toward and away from the conveyor means 3. The position is adjusted in the direction, and the horizontal distance is adjusted. The setting member 97 includes a parallel link 96.
An arc groove 97a centered on the base axis is formed, a thumb screw (stop) 97b penetrating the parallel link 96 penetrates this arc groove 97a, and the thumb screw 97b is fastened.
The parallel link 96 is fixed at the adjustment position.

Although the size of the seedling box N is substantially standardized,
There are some types with slightly different sizes, which may be deformed during use, and there are cases where it is desired to arrange the seedling boxes N roughly. In such a case, the interval between the left and right guide members 95 is adjusted. Therefore, by providing the guide means 48, the seedling boxes N are conveyed orderly, the falling of the seedling boxes N from the conveyor means 3 can be prevented, and the type and arrangement state of the seedling boxes N to be used can be increased. In addition, it is possible to change the number of seedling boxes N in one row to be conveyed at the same time.

A support frame 6 projects forward and upward from a conveyor frame 55 of the inclined conveyor mechanism 4. The support frame 6 is provided with a pickup mechanism 7 having a large number of pickup members 15. The picking-up member 15 is provided with a plurality of pieces at intervals shorter than half the length of the short side of the seedling box N in the left-right direction. Even if the arrangement of the seedling boxes N is shorter or longer in the left-right direction, Two or more pick-up members 15 are engaged with all the seedling boxes N and can be picked up.

That is, at least two of the pick-up members 15 engage with the edge Na of the seedling box N,
Since the general seedling box N is 60 cm × 30 cm, the left-right distance between the pick-up members 15 is set to 15 cm or less. The pick-up member 15 has a claw member 17 whose tip 17a is bent in a substantially L-shape so as to be able to engage with the edge Na of the seedling box N.
And an arm member 18 flexibly connected to the claw member 17 and pivotally supported by a support shaft 23 in the left-right direction. A plurality of support brackets 66 are provided at the front of the support frame 6, and the upper portions of the arm members 18 are pivotally supported by a pair of support shafts 23 provided on each of the support brackets 66. The hole fitted into the support shaft 23 of the arm member 18 is a long hole 18a in the longitudinal direction.
8 is allowed to move up and down.

The arm member 18 is formed of a channel material or the like having a U-shaped cross section, and swingably supports a shaft portion 17b formed by fixing a bar to the upper end of the claw member 17. The pin 18b and the claw member 1 in the middle of the arm member 18
A tension spring 67 is stretched between the pin 17c and the pin 7c at an intermediate position of the pin 7. The tension spring 67 constitutes the unstable switching means 19, and the claw member 17 is connected to the arm member 18 by a straight line S (shown in FIG. 5). And the state in which the claw member 17 swings beyond the linear state can be elastically switched.

When the claw member 17 is in elastic contact with the tip of the arm member 18, the claw member 17 is
8 is slightly bent, but close to a substantially straight line, and this state is a working posture that engages the seedling box edge Na. The support frame 6 is provided with a horizontal bar 68 over the entire width in the left-right direction, and the horizontal bar 68 is provided with an action buffering member 105 formed of an elastic body such as rubber so as to face each claw member 17. The horizontal bar 68 and the action buffering member 105 constitute the operating means 20, and come into contact with a relatively upper portion of the claw member 17 which has been swung rearward in the action posture, thereby restricting the swing. I have. The action buffering member 105 includes the claw member 1
7 and the horizontal bar 68 are provided so as not to come into direct contact with each other to generate noise, thereby improving the durability of the claw member 17.

The state in which the relatively upper portion of the claw member 17 is in contact with the horizontal bar 68 (shown by a two-dot chain line in FIG.
7 moves relatively further backward, the claw member 1
Numeral 7 moves up such that the tip 17a moves upward and rearward about the horizontal bar 68, and swings over the arm member 18 beyond the linear state S. The direction of the power is the pick-up member 15
Is switched to a two-fold bending posture. When the picking-up member 15 is folded in two (indicated by a dashed line in FIG. 5), the arm member 18 returns to the original position. , Bar 107 attached via a bracket
Further, a bending buffer member 106 formed of an elastic body such as rubber is provided to face each arm member 18.

The bending buffer member 106 is also used for the arm member 1.
The claw member 17 is provided so as not to generate noise by directly contacting the bar 107 and to improve the durability of the claw member 17. The claw member 17 suddenly changes from an inclined posture to a substantially horizontal posture due to a two-folding operation, and the tip 17a rises. Therefore, the hooked seedling box N is instantaneously released, and the seedling box N is placed on the conveyor means 3. Drops securely. The unstable switching means 1
A switching mechanism 16 for moving the picking-up member 15 forward from the action posture of engaging with the seedling box edge Na by the operating means 20 and the operating means 20 and switching to the bi-folding posture when swinging backward while engaging with the seedling box N. Is configured.

The support shaft 7 is provided behind the support shaft 23 of the support frame 6.
The swing arm 71 is pivotally supported through the pivot member 0, and the end of the swing arm 71 is provided with a horizontal bar 72 that can abut on all the arm members 18.
Is provided. Reference numeral 73 denotes a drive cam body having a substantially circular shape, which is provided on an output shaft of a drive motor 74 fixed to the support frame 6 and is linked via a link 75 to swing the swing arm 71 back and forth. . The support frame 6 is provided with two detectors 69 formed of a limit switch, a micro switch, and the like, and is disposed so as to detect substantially half rotation of the drive cam body 73.

The oscillating means 21 is formed by the oscillating arm 71, the horizontal bar member 72, the driving cam body 73, the detecting body 69, and the like, and the oscillating member 21 oscillates in a state of being folded in two. When the moving arm 71 swings rearward (counterclockwise in FIG. 5), the arm member 18 swings rearward, and the posture is changed to the operation posture substantially linear with the claw member 17. Note that a bending buffer member 106 may be provided on the horizontal bar 72 to receive the arm member 18 when the horizontal bar 72 is folded in two.

The pick-up mechanism 7 is constituted by the unstable switching means 19, the actuating means 20, the swing means 21 and the like. Therefore, when the picking-up member 15 is set in a substantially hanging state in which the claw member 17 is substantially linearly moved with respect to the arm member 18 and is advanced in this state, the claw member 17 is moved forward.
Is engaged with the seedling box N, and when the moving vehicle body 2 is further advanced from this state, the picking-up member 15 relatively swings backward, and the claw member 17 is moved by the action buffering member 1 on the horizontal bar 68 of the operating means 20.
05, the unstable switching means 19 is actuated, and the claw member 17 and the arm member 18 are suddenly switched to the two-folded bending posture. N is transferred onto the conveyor means 3.

Thereafter, the driving cam body 73 is rotated substantially 180 degrees, the horizontal bar member 72 of the swinging means 21 is moved rearward to swing the arm member 18, and the pickup member 15 is returned to the working posture. When the driving cam body 73 is further rotated by approximately 180 degrees, the horizontal bar member 72 moves forward, returning the picking-up member 15 in the working posture to the original position where the seedling box can be engaged. When the seedling box ground treatment device 1 is moved backward or moved to the working position, the swinging means 21 is operated to swing the picking-up member 15 which is in a substantially suspended state and rearward in the working posture. Then, the claw member 17 is retracted upward to prevent the pickup member 15 from catching on the ground.

Since the long hole 18a of the arm member 18 is fitted to the support shaft 23, even when the arm member 18 engages with the seedling box N,
When the seedling box ground treatment device 1 moves backward, the pick-up member 1
5 is able to escape upward without catching. In addition, if the picking-up member 15 is held in a folded and bent posture, the collecting operation of the seedling box N can be performed even if the picking-up mechanism 7 is provided at the front part of the seedling box ground treatment apparatus 1. On the left and right side surfaces of the conveyor frame 55 of the inclined conveyor mechanism 4, the front end of the link 14 is connected via a pivot shaft 77 to a middle part in the front-rear direction, and an elevating shaft 76 is provided at a position behind it. The base of the link 14 is pivotally connected to the support frame 41 via a shaft 80.

As shown in FIGS. 6 and 9, the support member 84 of the support frame 41 has a receiving portion 84a for receiving the link 14 in a substantially horizontal state.
Swing such that the pivot shaft 77 at the tip moves upward around 0 is allowed, but does not swing below the horizontal posture. That is, the link 14 is formed of a U-shaped member that is open upward and has a
The link 14 is also formed of a U-shaped member that is open upward and the link 14 is received horizontally, and can be fixed to the support frame 41 by passing through the pin 85.

On the support member 84 of the support frame 41, a support base 78 is provided upright at a position rearward of the shaft 80, and an elevating shaft 76 can contact the upper surface of the support base 78. The link 14, the lifting shaft 76, the pin 85, the support base 78, and the like constitute a connecting means 25 for connecting the conveyor frame 55 to the body 53, and the lifting means 2
Part 4 is also constituted. The elevating means 24 includes a cable 79
The end of the cable 79 is connected to the rear part of the support frame 41 so that the rear part of the inclined conveyor mechanism 4 can be pulled down. The winch is of a manual type, but may be of an electric type.

By operating the winch of the elevating means 24, the rear part of the inclined conveyor mechanism 4 is moved up and down, whereby the inclined conveyor mechanism 4 can be swung up and down around the pivot shaft 77, and stopped. Thereby, the front part of the inclined conveyor mechanism 4 can be held at a required height. When the rear portion of the inclined conveyor mechanism 4 is pulled down by the lifting / lowering means 24, the lifting shaft 76 comes into contact with the upper surface of the support base 78. When the pin 85 is pulled out and further lowered, the conveyor 14 moves upward with the link 14 swinging. The frame 55 swings about the elevating shaft 76, and swings higher than the swing about the pivot shaft 77, and as shown by a two-dot chain line in FIG. 3, the front part of the inclined conveyor mechanism 4. Can be lifted higher.

The inclined conveyor mechanism 4 has a pivot shaft 77 located at a position substantially at the center of gravity of the inclined conveyor mechanism 4 in the front-rear direction or at a position slightly behind the inclined conveyor mechanism 4. 50 is set to lightly touch the ground, and in this state, ground work for transferring the seedling box N to the ground can be performed. Then, by operating the elevating means 24 to raise the front part of the inclined conveyor mechanism 4 from the ground, and to swing up and down about the elevating shaft 76,
The posture in which the front part of the inclined conveyor mechanism 4 can move without hitting the ground is obtained. Such a posture is adopted when moving in a nursery or the like.

When the vehicle is mounted on a truck and transported, the inclined conveyor mechanism 4 is largely swung about the elevating shaft 76 to raise the front part high, and the front part of the inclined conveyor mechanism 4 comes into contact with the step board. Work around. As described above, since the inclined conveyor mechanism 4 has a connection pivot point for grounding work in the middle part in the front-back direction, particularly near the position of the center of gravity, the front-rear balance is improved, and the inclined conveyor mechanism 4 is moved rearward. It is possible to extend upward long, and the posture of the inclined conveyor mechanism 4 can be easily and easily changed and maintained by the elevating means 24. Also, the inclined conveyor mechanism 4
The power of the lifting / lowering means 24 for swinging the head can be reduced, and the cost can be reduced.

According to the configuration described above, the link 14,
With a simple and inexpensive configuration of the shafts 76, 77, 80, the pins 85, etc., and the elevating means 24, the inclined conveyor mechanism 4 can be changed to a position in which the seedling boxes N can be transferred and a front floating position (upward standby position). The posture changing operation can be performed very easily. Seat laying means 83 forward and downward from the moving vehicle body 2
Is protruding. The seat laying means 83 has a pair of bases of a pair of left and right arms 84 which are connected to the moving vehicle body 2 and is pivotally connected.
A support 85 having a (a) is supported movably to the left and right, and a wound sheet 82 is rotatably supported on a support shaft 85 a of the support 85.

The multi-seat 82 is located on the front side of the moving vehicle body 2 and behind the front end of the conveyor means 3. When the seedling box is unfolded, the leading end of the sheet 82 is pulled out to the front from the mechanism 7 and stopped. Unpack Box N The sheet 82 is sequentially fed out as the seedling box ground treatment device 1 moves backward, and is laid before the seedling box N. The sheet laying means 83 is provided with the shaft length of the support shaft 85a and the sheet 8
2 is wider than the conveyor means 3, and when the left and right ends of the sheet 82 are aligned with one end of the conveyor means 3, the other end is greatly protruded from the conveyor means 3 to be in an offset state. By changing the left and right positions of 85, it can be set and changed on either the left or right side of the conveyor means 3.

This makes it possible to lay the sheet wider and offset than the width of the expanded seedling box, and by expanding the seedling box N later on the protruding sheet portion, the width of the humanitarian space 93 and the width of the expanded seedling box can be reduced. The width can be made optimal according to the width of the existing house. The seedling box-to-ground processing apparatus 1 is capable of simultaneously processing five seedling boxes N in the left-right direction. A general house for raising seedlings is located between the frontage areas 3 (540 cm).
The seedling box N of mx30cm is set to be vertically long.
Can be expanded at any time.

In FIG. 2, the seedling box-to-ground processing apparatus 1 has a width 2
When unfolding the seedling box N using the sheet 82 of 10 to 220 cm, first, the sheet laying means 83 is offset to the right and the sheet 82 is laid along the left side of the house.
Unfold the seedling boxes N. Next, the five seedling boxes N are deployed while the sheet laying means 83 is offset to the left and the sheets 82 are laid along the right side of the house. Then, at the center side of the house, the end of the sheet 82 where the human way 93 and the seedling boxes N on the left and right sides thereof are not unfolded is formed. That is, the deployment work is performed so that the width of the human way 93 becomes, for example, 30 cm.

In the last unfolding operation, the seed laying means 83 is not used, and the seedling boxes N are not supplied to the center of the conveyor means 3 in the left-right direction.
Is spread on the end of the sheet 82. As a result, the seedling boxes N in each of the seven rows on the right and left sides of the humanitarian road 93 are developed. Note that the collection operation is performed in the reverse order by moving the seedling box-to-ground treatment device 1 in the direction opposite to the unfolding operation. It is possible to set the number N of seedling boxes on the left and right sides of the humanitarian space 93 to a plurality other than 7 and set according to the size of the house.
It is most efficient to use only one 3.

In FIGS. 10 and 11, a truck 26 for transferring the inclined conveyor mechanism 4 and the seedling box N is disposed behind the moving vehicle body 2. The cart 26 is a roller conveyor cart capable of placing and transporting the seedling box N, has a front wheel 27F and a rear wheel 27R, and is movable by being manually pushed. A connecting means 28 for connecting is provided. The connecting means 28 has a concave portion 28a (shown in FIG. 3) provided at the rear end of the body 53 and a connected portion 31 made of a connecting rod provided at the front portion of the bogie 26. The distance from the ground to the concave portion 28a is Is slightly longer than the distance from the ground to the connected portion 31. The bogie 26 is connected to the moving vehicle body 2 by inserting the connected portion 31 into the concave portion 28a while lifting the front portion of the bogie 26. When the movable vehicle body 2 is steered, the bogie 26 easily follows the steering when the front wheel 27F is lifted (a state in which the front wheel 27F is lifted by the dimension T shown in FIG. 1).
The wheels 27 are preferably of a free caster type.

The truck 26 has a trailing truck 33 at its rear.
Are connected by the subsequent connecting means 34. This trailer 3
Reference numeral 3 also denotes a roller conveyor truck capable of placing and transporting the seedling box N, and the subsequent connecting means 34 includes a connecting pin 90 provided at a lower rear portion of the truck 26, a hook 91 provided at a lower front portion of the subsequent truck 33, Operation means 35 for rotating the hook 91 from behind the succeeding bogie 33 is provided. The hook 91 has a guide surface on the outer surface of the tip, and when the trailing bogie 33 approaches the bogie 26, the guide surface hits the connecting pin 90, rotates once to escape, and then engages with the connecting pin 90. It is supposed to.

The operating means 35 is formed of a string or a wire. One end of the operating means 35 is connected to the hook 91, and the other end is connected to the rear part of the succeeding carriage 33. When the trailing bogie 33 is moved backward with the hooks 91 disengaged, the connection with the bogie 26 is released. Reference numeral 36 denotes a stopper member also serving as a scraper provided at the rear end of the cart 26, and the upper portion thereof is a seedling box mounting surface 3 of the cart 26.
9 and is retractable by a retracting means 37 so as to be lower than the seedling box mounting surface 39.

The stopper member 36 is made of metal, rubber, or plastic and formed into a strip, a strip having a corrugated or uneven upper portion, or a bar bent into a U-shape. A vertically intermediate portion is supported by a fulcrum shaft 92 at the rear upper portion of the carriage 26 so as to be swingable about a horizontal axis, and the upper end thereof is a seedling box mounting surface (conveyor surface) by a coil spring or the like. It is biased so as to protrude from 39. The retreating means 37 is a projecting member provided at the front of the succeeding bogie 33. When the succeeding bogie 33 approaches the bogie 26, the retreating means 37 abuts on the lower side of the stopper member 36 and resists the coil spring. To move the upper portion of the stopper member 36 to a position below the seedling box mounting surface 39.

The stopper member 36 prevents the seedling box N from dropping from the seedling box mounting surface 39 when the trailing truck 33 is not connected to the truck 26. , The seedling box N between the trolley 26 and the succeeding trolley 33
Evacuate to allow delivery. The trolley 26 has a base 94 having a front wheel 27F and a rear wheel 27R, and an upper base 95 forming a seedling box mounting surface 39. , A front portion, a rear portion, and an intermediate portion, the length of which is adjustable. Each of the columns 96 has a fastener for fixing the column in an expanded or contracted position.

The front support 96F and the rear support 96R have substantially the same length, or the front support 96F is longer than the rear support 96R.
When the seedling box mounting surface 39 of the trolley 26 is inclined rearward and downward, it can be naturally transported when the seedling box N is collected, and the rear support 96R is extended to extend the seedling box mounting surface 39 forward and downward. In this state, when the seedling box N is deployed, the supply of the seedling box N from the cart 26 to the inclined conveyor mechanism 4 is facilitated. Therefore, by making the length of the support 96 expandable and contractible, the seedling box N can be transported on the carriage 26 without using power, and the structure can be simplified and the cost can be reduced.

The trailing bogie 33 allows the front, rear and middle columns 96 to be adjustable in length, but the box mounting surface 39 is set to be horizontal during both the unfolding operation and the collection operation. The height of the carriage 2 is changed, and the height is set to substantially match the rear end of the carriage 2. Next, the processing operation of the seedling box N in the seedling box ground treatment apparatus 1 of the above-described embodiment will be described. When collecting the seedling boxes N in which a large number of sheets are laid in many rows in the horizontal or vertical state in the nursery house, the inclined conveyor mechanism 4 is raised by the elevating means 24 to the position indicated by the two-dot chain line in FIG. The seedling box ground treatment device 1 is moved to the seedling raising house, and is arranged in parallel with the front and rear direction of the seedling box N.

At this time, the trolley 26 may be connected to the machine body 53 in advance or may be connected to the nursery house. The trolley 26 moves with the front wheel 27F raised during the movement and during the seedling box collection work. Since it is connected to the vehicle body 2, it follows the steering of the moving vehicle body 2 well. Incline conveyor mechanism 4 by lifting means 24
Is raised, the front part is lowered, the ground roller 50 is grounded, the tip 17a of the claw member 17 is substantially grounded, the rotating body 9 of the lifting means 5 is brought close to the ground, and the moving body 2 is advanced in that state. . If you are laying a multi-seat,
The ground roller 50 and the claw member 17 are in contact with the upper surface of the sheet.

As the moving vehicle body 2 advances, the tips 17a of the large number of claw members 17 are simultaneously caught on the edges Na of the plurality of seedling boxes N. When the moving vehicle body 2 is further advanced, each pick-up member 15 swings rearward in a substantially linear posture, lifts the end of each seedling box N, and the claw member 17 contacts the action buffering member 105 of the horizontal bar 68 of the operating means 20. By contact, the unstable switching means 19 is actuated and the picking-up member 15 is in a two-folded position, the claw member 17 jumps up with respect to the arm member 18 and comes off the seedling box N, and the seedling box N is placed on the conveyor means 3. Fall.

Pickup member 15 in two folded positions
The arm member 18 is returned from the state in which the arm member 18 is in contact with the bending buffer member 106 so as to be in a substantially linear posture with the claw member 17 by the operation of the swinging means 21.
Is returned to the original position, the picking-up member 15 is returned to the hanging posture capable of engaging with the next seedling box N. If the pick-up member 15 fails to pick up the seedling box N, or if the pick-up mechanism 7 is not provided, the protrusion of the rotating body 9 of the lifting means 5 abuts on the seedling box N on the ground while rotating. And the seedling box N is strongly lifted, and the seedling box N is placed on the conveyor means 3 with vertical vibration by intermittent engagement by the projections.

The seedling box N placed on the conveyor means 3 is sent to the rear upper portion of the conveyor means 3 by the forward rotation operation of the conveyor means 3 and is transferred to the carriage 26, and is moved by the stopper member 36 at the rear end of the carriage 26. It slides down until stopped, and is stored on the seedling box mounting surface (conveyor surface) 39. Seedling box N on trolley 26
Is taken out artificially. At the time of removal, the upper edge of the stopper member 36 is used as a scraper to remove the soil adhering to the lower surface of the seedling box N. When the trailing bogie 33 is connected to the bogie 26, the trailing bogie 33 is approached from right behind the bogie 26, connected by the trailing connecting means 34, and the stopper member 36 is retracted below the seedling box mounting surface 39 by the retreating means 37. Let it.

When the succeeding trolley 33 on which the collected seedling boxes N are placed is separated from the trolley 26 and taken out of the nursery house,
The operating means 35 is operated immediately after the succeeding bogie 33 to disconnect the subsequent connecting means 34. When the seedling box N is deployed in the nursery house, the picking-up mechanism 7 is not used, so that the swinging means 21 is operated to lift the picking-up member 15 in the hanging posture rearward and upward, and the lifting means 5 is not used.
The rotor 9 is stopped in a state where the protrusion does not protrude from the conveyor surface 38 of the conveyor means 3.

Then, the inclined conveyor mechanism 4 is moved up and down
4, the seedling box ground treatment apparatus 1 is moved to the left and right sides of the nursery house and to the laying end of the seedling box N, and the inclined conveyor mechanism 4 is moved by the elevating means 24.
To bring the ground roller 50 into contact with the ground, and bring the rotating body 9 of the lifting means 5 close to the ground. Truck 26 and trailer 3
3, the seedling box N may be placed in advance or may be placed later. The seedling box placing surface 39 is inclined forward and downward, and the conveyor means 3 is turned over while the seedling box N is being inverted. The seedling boxes N are sent from the cart 26, and the seedling boxes N are sequentially developed on the ground (on the sheet 82) from the conveyor means 3, and the moving vehicle body 2 is moved backward every time the seedling boxes N are developed in one row.

At this time, the trailing seedling box N is pushed forward by the conveying force of the conveyor means 3 so as to be pressed against the preceding seedling box N, so that the front and rear seedling boxes N are packed. Can be expanded. In order to pack the front and rear developed seedling boxes N, there is a method in which the seedling box ground treatment apparatus 1 is advanced and the subsequent developed seedling boxes N are pressed against the preceding developed seedling boxes N via the rotating body 9. Pressing the trailing unfolded seedling box N with force eliminates the need for the forward movement of the seedling box-to-ground treatment device 1, thereby speeding up the processing operation and improving efficiency.

When the sheet 82 is used, the sheet 82 is pulled out from the sheet laying means 83 forward, and is stopped under the ground roller 50 and the rotating body 9 at the front end of the seedling box development area, and the seedling box N is placed thereon. Unfold. Laying sheet 8
The seedling box N is unfolded along one side of No. 2 and the other side of the sheet 82 is left, and the next sheet 82 is offset and unfolded with this sheet 82 and the human road 93 interposed therebetween, and is spread outside the sheet 82. The seedling box N is unfolded along the way, and finally the seedling box N is unfolded with the human road 93 interposed between the left and right sheet offset portions.

The present invention is not limited to the above embodiment, but can be variously modified. For example,
A configuration in which the lifting / lowering means 24 is disposed at the rear of the moving vehicle body 2 so that the rear of the conveyor means 3 can be pulled down; a configuration in which the conveyor frame 55 is connected to the support frame 41 by the link 14;
A configuration in which the control means 12 is disposed between the left and right crawler traveling devices 54; a configuration in which the driving device 42 is disposed substantially at the center of the support frame 41 in the horizontal direction; The length of the conveyor means 3 over substantially the entire width, the sheet laying means 8
3 is configured such that the left / right position can be changed and the left / right width is wider than the conveyor means 3; the front / rear struts 101 of the bogie 26 are configured to be vertically adjustable; the action buffer member 105 for the pick-up member 15 and the bending buffer member 106; Only one of the configurations including at least one may be provided, and a plurality of configurations may be appropriately selected when a plurality of configurations are provided.

[0063]

According to the present invention described in detail above, the seedling box N is picked up from the ground and lifted to a required height to be placed on the cart 26 and the like, and the seedling box N is unfolded from the cart 26 to the ground. A large number of conveyors are not required and can be performed only by the inclined conveyor mechanism 4. This enables simplification of the apparatus, weight reduction, compactness, cost reduction, etc., and speeds up the work of unfolding and collecting the seedling boxes N. , Etc. are also possible.

[Brief description of the drawings]

FIG. 1 is an overall side view showing an embodiment of the present invention in which carts are connected.

FIG. 2 is an overall plan view of the same.

FIG. 3 is an overall side view showing the embodiment of the present invention from which the bogie has been detached.

FIG. 4 is an overall plan view of the same.

FIG. 5 is a partial cross-sectional side view of a front portion of a pick-up mechanism and an inclined conveyor mechanism.

FIG. 6 is a side view of the inclined conveyor mechanism and sheet laying means.

FIG. 7 is a perspective view of a pickup mechanism.

FIG. 8 is a plan view of a guide unit.

FIG. 9 is a side view of a support portion of the conveyor means.

FIG. 10 is a side view showing a truck and a trailing truck.

FIG. 11 is a plan view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seedling box ground treatment apparatus 2 Moving body 3 Conveyor means 4 Inclined conveyor mechanism 7 Pickup mechanism 24 Elevating means 25 Connecting means 26 Dolly N Seedling box Na Edge

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoshio Tate 44-3 Hirade Industrial Park, Utsunomiya City, Tochigi Prefecture Inside Suzutec Co., Ltd. (72) Michio Tezuka 44 Number 3 Hirade Industrial Park in Utsunomiya City, Tochigi Prefecture F term in the Suzutec Co., Ltd. (reference) 2B027 ND03 NE02 QA05 TC07 TC09 TC15 TC18

Claims (10)

[Claims] 1. An inclined conveyor mechanism having a forwardly-upwardly inclined conveyor means for transporting a seedling box on a moving vehicle body, the middle of which is pivotally supported in the front-rear direction, and an elevating means for lifting a front part of the conveyor means. A seedling box ground treatment apparatus, wherein the lifting means is arranged at the rear of the moving vehicle body so that the rear of the conveyor means can be lowered. 2. An inclining conveyor mechanism having a rearwardly inclined inclining conveyor means for transporting a seedling box on a moving vehicle body, the middle of which is pivotally supported at the front and rear, and an elevating means for lifting a front portion of the conveyor means. And connecting a tip of an upwardly swingable link to a front and rear halfway of a conveyor frame of the conveyor means, and providing an elevating shaft behind the link, connecting a base of the link to a moving vehicle body, and A seedling box-to-ground treatment apparatus, wherein a support for supporting the shaft is projected upward from a link base connection point. 3. An inclining conveyor mechanism having a rearwardly inclined inclining conveyor means for transporting a seedling box on a moving vehicle body, the middle of which is pivotally supported in the front and rear directions, and an elevating means for lifting a front portion of the conveyor means. Wherein the moving vehicle body has a pair of left and right crawler traveling devices, and control means for controlling the moving vehicle body and the inclined conveyor mechanism is arranged between the left and right crawler traveling devices. Processing equipment. 4. An inclined conveyor mechanism having a rearwardly-inclined conveyor means for transporting a seedling box on a movable vehicle body, which is pivotally supported at the front and rear halfway, and a lifting and lowering means for lifting a front portion of the conveyor means. A seedling box-to-ground process, comprising: providing a support frame over a conveyor means on the moving vehicle body; and arranging a driving device for the moving vehicle body at a substantially central portion in the left-right direction of the support frame. apparatus. 5. An inclined conveyor mechanism having a forwardly-inclined conveyor means on a moving vehicle body, which is pivotally supported at the front and rear halfway and transports a seedling box, and an elevating means for lifting a front portion of the conveyor means. And a guide means for guiding the transfer of the seedling boxes on both the left and right sides is provided on the left and right sides of the conveyor means so that the position in the left and right direction can be adjusted. 6. An inclined conveyor mechanism having a rearwardly inclined conveyor means for transporting a seedling box on which a front and rear halfway portion is pivotally supported on a moving vehicle body, and an elevating means for lifting a front portion of the conveyor means. The inclined conveyor mechanism is provided with a ground roller extending substantially the entire width of the conveyor means below a front portion of the conveyor means. 7. An inclined conveyor mechanism having a rearwardly inclined conveyor means for transporting a seedling box on a moving vehicle body, the front and rear halfway portions of which are pivotally supported, and an elevating means for lifting a front part of the conveyor means. In front of the moving vehicle body and behind the front end of the conveyor means, sheet laying means for laying sheets prior to the deployment when the seedling box is deployed is provided so as to be capable of changing the left and right positions, A seedling box-to-ground treatment apparatus characterized in that the lateral width is wider than the conveyor means. 8. An inclined conveyor mechanism having a forwardly-upwardly inclined conveyor means for transporting a seedling box on a moving vehicle body, the middle of which is pivotally supported in the front-rear direction, and an elevating means for lifting a front part of the conveyor means. A truck for transferring a seedling box and a tilting conveyor mechanism is connected to the rear part of the moving vehicle body in a state where the front wheels are lifted up, and the front and rear struts are vertically lengthened so as to tilt forward and backward on a seedling box mounting surface of the truck. A seedling box-to-ground treatment device characterized by being adjustable. 9. A pick-up mechanism for lifting a seedling box deployed on the ground and placing it on a conveyor means, in front of the inclined conveyor mechanism.
A seedling box-to-ground treatment apparatus according to any one of the above. 10. An inclined conveyor mechanism having a forwardly-inclined conveyor means for transporting a seedling box on a moving vehicle body, the front and rear halfway portions of which are pivotally supported, and an elevating means for lifting a front part of the conveyor means. A pick-up mechanism that lifts a seedling box deployed on the ground located in front of the inclined conveyor mechanism and places the seedling box on a conveyor means, wherein the pick-up mechanism is an edge of the seedling box deployed on the ground. A pick-up member that is placed on the conveyor means while being lifted by being hooked on the seedling box, and is switched to a folded position when folded forward when the pick-up member is moved forward from the action position of being hooked on the edge of the seedling box and rocked backward while being hooked on the seedling box. A switching mechanism, and at least one of an action buffering member that abuts when the pick-up member is in the operating position and a bending buffering member that abuts when the pick-up member is in the bending position. Seedling box ground processing apparatus characterized by there.