JP2001086869A - Ground treatment apparatus for seedling box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the sure continuous lifting and transferring of a seedling box even in the case when roots of seedlings in the seedling box entangle in the ground. SOLUTION: This ground treatment apparatus is provided with an inclined conveyor mechanism 4 having a backward-rising inclined conveyor 3 on a mobile body 2, and a lifting means 5 for lifting the seedling boxes N which are spread on the ground by hooking their edges Na is placed on the front end of the inclined conveyor mechanism 4.

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 An apparatus for collecting seedling boxes is disclosed in
As disclosed in Japanese Patent Application Laid-Open No. 1-75554, "a box pick-up mechanism which is supported by a work traveling machine body together with a front-rear transport mechanism, hooks the periphery of a seedling box deployed on the ground, lifts it, and delivers it to the front-rear transport mechanism. And a front frame extending above and forward of the front-rear transport mechanism, and an upper portion is supported at the front portion of the front frame so as to be swingable back and forth, and the lower portion of the seedling box is moved forward by the upper portion. A hook that lifts the seedling box by hooking the peripheral edge from below and moving backward and upward around the upper part, and forcibly raises the hook after the hook swings at a certain angle due to engagement with the seedling box. And forced forcible removal means for popping off the seedling box.

The box pick-up mechanism is located at a position distant from the front-rear transport mechanism in the forward direction. The box pick-up mechanism advances a swingable elongated hook having a pivotally supported upper portion while engaging the end of the seedling box. The box is configured to be lifted with its rear end centered on its front end and transferred to the front-rear transport mechanism.

[0004]

The hook of the prior art box pick-up mechanism has a film or the like laid under the seedling box. If the seedling box can be easily lifted, the picking accuracy of the seedling box can be improved. Is high, and it can exhibit a sufficient function, but when the root of the seedling is entangled with the ground, a thin hooking device may bend and a pick-up error may occur. In addition, the hooking tool must return to the hookable position after releasing the seedling box, and it is difficult to continuously operate. SUMMARY OF THE INVENTION An object of the present invention is to provide a seedling box ground treatment apparatus that can solve such problems of the related art.

According to the present invention, a lifting means for engaging and lifting a seedling box is provided at the front end of the inclined conveyor mechanism, so that even if the roots of the seedlings of the seedling box are entangled with the ground, they can be lifted and transferred continuously and reliably. It is an object of the present invention to provide a seedling box-to-ground treatment apparatus capable of performing the above-mentioned steps.

[0006]

A first concrete means for solving the problem according to the present invention is to provide an inclined conveyor mechanism 4 having a conveyor means 3 having a rearwardly inclined shape on a moving vehicle body 2. A lifting means 5 is provided at the front end of the inclined conveyor mechanism 4 to engage with and lift the edge Na of the seedling box N deployed on the ground. by this,
Lifting means 5 even if the roots of seedlings in seedling box N are entangled with the ground
To carry out the lifting process.

A second concrete means for solving the problem in the present invention is to provide an inclined conveyor mechanism 4 having a conveyor means 3 which is inclined upward and rearward on a moving vehicle body 2, and a front end of the inclined conveyor mechanism 4. And a lifting means 5 that intermittently engages with the edge Na of the seedling box N deployed on the ground while rotating. In this way, even if the roots of the seedlings in the seedling box N are entangled with the ground, the lifting means 5 reliably and continuously lifts and transports the seedlings, and applies vibrations to remove attached soil. A third specific means for solving the problem in the present invention is that, in addition to the first or second specific means, a seedling is provided on a support frame 6 protruding forward from the inclined conveyor mechanism 4 before the lifting means 5. Edge N of box N
That is, a pick-up mechanism 7 that lifts by engaging with a is provided.

[0008] Thus, the recovery of the seedling box N is performed in two stages by the lifting means 5 and the lifting mechanism 7, and the recovery leak is eliminated. The fourth specific means for solving the problem in the present invention is, in addition to any one of the first to third specific means,
The lifting means 5 is formed by a rotating body 9 having a projection 8 at an axial interval on the outer peripheral surface. As a result, the lifting means 5 can be simply configured, and driving can be facilitated. According to a fifth specific means for solving the problem in the present invention, in addition to the fourth specific means, the rotating body 9 includes an irregularly shaped cross-section member 10 having a circumferential irregularity on an outer peripheral surface, which is spaced apart in the axial direction. Is provided.

As a result, the rotating body 9 is made of the cross-section shaped member 1.
0 is simple. According to a sixth specific means for solving the problem in the present invention, in addition to the fourth specific means, the rotating body 9 is formed of a rod-shaped member having an elliptical cross section, The protrusions 8 are provided at intervals in the axial direction so as to be accommodated in the outer peripheral rotation region of the largest diameter portion of the bulging portion. Thereby, the seedling box N is securely engaged with the projection 8 and lifted. A seventh specific means for solving the problem in the present invention is a transmission means for transmitting power synchronously or asynchronously from the conveyor means 3 to the lifting means 5 in addition to any one of the first to sixth specific means. 11 is provided.

As a result, the lifting means 5 can be driven by the conveyor means 3, and the seedling box N can be lifted at the transport speed or quickly. Eighth concrete means for solving the problem in the present invention is the first means.
In addition to the specific means of any one of (1) to (7), a control means 12 for synchronizing or asynchronously moving the conveying speed of the conveyor means 3 with the moving speed of the moving body 2 is provided. This makes it possible for the control means 12 to set the conveyor means 3 to a transport speed optimal for seedling box processing.

A ninth concrete means for solving the problem in the present invention is that, in addition to any one of the first to eighth concrete means, the conveyor means 3 is capable of normal and reverse rotation. Thus, the seedling box N is collected by rotating the conveyor means 3 forward, and the seedling box N can be unfolded from the conveyor means 3 to the ground by reversing the seedling box N. Tenth solution for solving the problem in the present invention
The specific means is that, in addition to the ninth specific means, when the conveyor means 3 is reversed, the lifting means 5 can be stopped.

Thus, when the seedling box N is deployed by inverting the conveyor means 3, the lifting means 5 can be stopped so as not to obstruct the deployment of the seedling box N. An eleventh specific means for solving the problem in the present invention is to provide a tilting conveyor mechanism 4 having a rearwardly inclined shape on a moving vehicle body 2, and a seedling box deployed on the ground in front of the tilting conveyor mechanism 4. N
A pick-up mechanism 7 that is mounted on the inclined conveyor mechanism 4 while being lifted while being hooked on the edge Na of the above-mentioned is arranged, and the inclined conveyor mechanism 4 is provided with vibration means 5.

Thus, the seedling box N picked up by the pick-up mechanism 7 and placed on the inclined conveyor mechanism 4 is moved by the vibration means 5
Vibration is applied to remove and remove attached soil and transport.

[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 trolleys 26 are detachably connected to the moving body 2 to constitute a seedling box processing machine. The inclined conveyor mechanism 4 is provided with rollers at the front end, the rear end, and the middle part of the rectangular conveyor frame 55, and a pair of left and right belts 56 are stretched on the rollers to form the conveyor means 3 having an upwardly inclined shape. It is driven by a drive motor 57 provided at the rear of the conveyor frame 55 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 via 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 a remote control means 52. At the front of the conveyor frame 55, a grounding sled body 50 is provided via a bracket 50a so that the vertical position can be adjusted. When the grounding sled body 50 is in contact with the ground, the front end of the conveyor means 3 rises slightly from the ground. It is arranged in the state. 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 conveyor frame 5
The bracket 58a projects from the front end of the support 5 to support the rotating shaft 58, and 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. As shown in FIGS. 4 to 6 and 8, the rotating body 9 is formed of a rod-shaped member having an elliptical cross section, and the protrusion 8 is formed on the outer surface of the bulging portion (diameter end side) at an axial interval. Is provided. The protrusion 8 is positioned so as to be contained in the outer peripheral rotation region P of the largest diameter portion of the elliptical bulging portion.

The axial interval is set shorter than the length of the short side of the seedling box N, and is arranged so that two or more protrusions 8 can engage with one seedling box N. , Seedling Box N
Between the vertical ribs Nb around the edge Na. Also,
The trailing projection 8 engages the bottom edge of the seedling box N lifted by the preceding projection 8. The rotating body 9 of the lifting means 5 is brought closer to the ground than the front end of the conveyor means 3 in a state where the grounding sled body 50 is in contact with the ground, and rotates clockwise in FIG. 8 at the edge Na
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 sled body 50, the seedling box N can be strongly lifted, and the roots of the seedlings in the seedling box N are grounded. Even if it is entangled in the sheet, it is surely lifted and transported. In addition, since the rotating body 9 rotates, the seedling box N can be lifted continuously, and even if one projection 8 fails to engage, the succeeding projections 8 can be involved in the engagement sequentially, and the seedling box lifting can be performed. Very sure. In addition, the rotating body 9 is
Is located in the outer peripheral rotation range P of the largest diameter portion, even if the multi-sheet is laid under the seedling box N, the multi-sheet is not hooked and rolled.

When the lifting means 5 sets the outer peripheral rotation area P of the rotating body 9 at a position protruding above the extension of the conveyor surface 38 of the conveyor means 3, the seedling box N is placed on the conveyor means 3. Rotating body 9 is still in the seedling box N
The seedling box N can be pushed up intermittently (periodically) by the rotation of the rotating body 9. That is, the lifting means 5 serves as a vibrating means for applying vertical vibration (load fluctuation) to the seedling box N, and vibrates to remove soil adhering to the bottom of the seedling box N during transportation on the conveyor means 3. Can be.

Even when the rotating body 9 is set so that the outer peripheral rotation area P is higher than the conveyor surface 38, the cross section is elliptical. It is possible to stop at a position below the conveyor surface 38. The stopping of the rotating body 9 may be performed visually, but is preferably automatically stopped at a set position using an encoder or the like. However, the rotating body 9 can be reversed when the seedling box N is unfolded, and the protrusion 8 can be positively engaged with the rib at the bottom of the seedling box N to push the seedling box N out of the conveyor means 3. It is.

FIGS. 17 to 21 show the rotating body 9 of the lifting means 5.
The first modified example shown in FIG. 17 uses a circular pipe 59 for the rotating body 9 and has a large number of axially and circumferentially spaced intervals on its outer peripheral surface. Are screwed together to form the projection 8. The rotation shafts 58 are fixed to both ends of the circular pipe. In a second modification of the lifting means 5 shown in FIG. 18, an elliptical body 61 and a cylindrical body 62 are alternately fitted and fixed to the rotating shaft 58 to form the rotating body 9. The part is a projection 8.

In a third modification of the lifting means 5 shown in FIG. 19, a rotating body 9 is formed by alternately fitting and fixing a square flower 63 and a cylindrical body 62 to a rotating shaft 58. 6
The bulges at the four corners 3 are protrusions 8. The elliptical body 61 and the square flower body 63 are irregularly shaped members 10 having a circumferential irregularity on the outer peripheral surface. By disposing the cylindrical body 62 therebetween, the protrusions 8 are spaced apart in the circumferential and axial directions. And a large number will be arranged. A member having an outer peripheral surface other than a perfect circle such as a triangle, a pentagon, an oval, or the like can be used as the irregularly shaped member 10, and can be manufactured at a lower cost than when the projection 8 is specially formed.

In a fourth modification of the lifting means 5 shown in FIG. 20, a rotating body 9 is formed by alternately fitting and fixing a blade body 64 and a cylindrical body 62 to a rotating shaft 58. The four blades are the projections 8. In a fifth modification of the lifting means 5 shown in FIG. 21, the rotating body 9 is formed by alternately fitting and fixing the sawtooth body 65 and the cylindrical body 62 to the rotating shaft 58, and the teeth of the sawtooth body 65 are formed. The projection 8 is provided. In addition,
The rotating body 9 shown in FIGS.
1, square flower 63, blade body 64, sawtooth body 65 and the like may be integrally formed.

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 pick-up mechanism 7 having a number of pick-up 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, The two pick-up members 15 are engaged with all the seedling boxes N so that they can be picked up.

That is, at least two of the pick-up members 15 are engaged with the edge Na of the seedling box N in the same manner as the protrusion 8 of the rotating body 9, and the seedling box N is usually 600 mm.
Since it is X300 mm, the horizontal distance between the pick-up members 15 is set to 150 mm 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 is connected to the claw member 17 so as to be able to bend. 23 and an arm member 18 pivotally supported.

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 to the support shaft 23 of the arm member 18 is a long hole 18a in the longitudinal direction, and allows the arm member 18 to move up and down. The arm member 18
Is formed by a channel material or the like having a U-shaped cross section, and a shaft portion 17b formed by fixing a bar to the upper end of the claw member 17.
Is swingably supported, and a tension spring 67 is stretched between a pin 18b in the middle of the arm member 18 and a pin 17c in the middle of the claw member 17.

This tension spring 67 is used for the unstable switching means 1.
9, a state in which the claw member 17 is in contact with the distal end of the arm member 18 with the claw member 17 in a straight line state S (shown in FIG. 5) with respect to the arm member 18; 17 can be resiliently switched to a state of swinging beyond the linear state. The claw member 17 is an arm member 18
In a state in which the claw member 17 is elastically in contact with the tip of the arm member 18, the claw member 17 is slightly bent with respect to the arm member 18, but is almost a straight line. Become.

The support frame 6 is provided with a horizontal bar 68 over the entire width in the left-right direction. The horizontal bar 68 constitutes the actuating means 20, and is in contact with a relatively upper portion of the claw member 17 which has swung rearward in the above-mentioned working posture, thereby restricting the swing. The relatively upper part of the claw member 17 is the horizontal bar 6
When the lower portion of the claw member 17 moves relatively further rearward from the state in which the claw member 17 abuts (shown by a two-dot chain line in FIG. And the arm member 18 swings beyond the linear state S. When the linear state S is exceeded, the direction of the urging force of the tension spring 67 causes the picking-up member 15 to be folded in two. (See FIG. 6).

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. Thus, the hooked seedling box N is instantly released, and the seedling box N is conveyed. Drop on the means 3 without fail. By the unstable switching means 19 and the actuating means 20, etc., the picking-up member 15 is advanced from the action posture in which it is engaged with the seedling box edge Na and swings rearward while being engaged with the seedling box N, so as to be folded in two. A switching mechanism 16 for switching is configured. Support frame 6
A swing arm 71 is pivotally supported via a support shaft 70 on the rear side of the support shaft 23, and a horizontal bar 72 that can contact all arm members 18 is provided at the tip of the swing arm 71. .

Reference numeral 73 denotes a substantially circular drive cam body,
Is provided on an output shaft of a fixed drive motor 74, and is linked via a link 75 to swing the swing arm 71 back and forth. The support frame 6 has two detectors 69 formed by limit switches, micro switches, and the like.
Are provided so as to detect substantially half rotation of the driving cam body 73. The swinging means 21 is formed by the swinging arm 71, the horizontal bar member 72, the driving cam body 73, the detecting body 69, and the like, and the swinging arm 71 is held in a state where the picking-up member 15 is in a folded position. Swings backward (counterclockwise in FIG. 6), the arm member 18
Is swung in the rearward direction to change the posture to an operation posture substantially linear with the claw member 17.

When the swing arm 71 swings backward while the pick-up member 15 is in the working posture (substantially hanging posture), the claw member 17 and the arm member 18 swing back in a substantially linear state. The seedling box N can be moved and retracted from the picking-up operation state (dotted line state in FIG. 61). The pick-up mechanism 7 is constituted by the unstable switching means 19, the operating means 20, the swinging means 21 and the like. Therefore, when the pick-up member 15 is set in a substantially hanging state in which the claw member 17 is in a substantially linear state with respect to the arm member 18 and is advanced in this state, the claw member 17 engages with the seedling box N, When the moving body 2 is further advanced from this state, the pick-up member 15 relatively swings rearward, and the claw member 17
By contacting the horizontal bar 68 of 0, 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. Remove the seedling box N and conveyor means 3
Transfer to the top.

Thereafter, the driving cam body 73 is rotated substantially 180 degrees, the horizontal bar 72 of the swinging means 21 is moved backward, the arm member 18 is swung, 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, and the picking-up member 15 in the working posture returns 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 elongated hole 18a of the arm member 18 is fitted to the support shaft 23, the arm member 18 can be engaged with the seedling box N even when it is engaged.
When the seedling box ground treatment device 1 moves backward, the pick-up member 1
5 is able to escape upward without catching. The moving vehicle body 2 has a crawler traveling device 54 on the left and right sides of the body 53, and the crawler traveling device 54 is driven by an electric motor. A pair of front and rear connection points is formed on the left and right side surfaces of the conveyor frame 55 of the inclined conveyor mechanism 4 at an intermediate portion in the front and rear direction, and can be connected to the front and rear connection portions provided on the body 53 of the moving vehicle body 2. ing. The front connection point of the conveyor frame 55 is formed by a connection plate having a pin hole,
The rear connection point is formed by a pin 76.

The front connecting portion of the body 53 is formed of a connecting plate having a pin hole, and the front connecting point of the conveyor frame 55 is aligned with the pin hole to insert and connect the pin 77 from the side. The front connection means 25F is connected and supported so as to be swingable about the left and right axes and can be disconnected. The rear connecting point of the conveyor frame 55 is formed with a concave portion 78a on an upper part of a support base 78 erected from the body 53, and the concave portion 7a is formed.
A pin 76 is fitted to and received by 8a, and these constitute rear connection means 25R which can be connected and supported so as to be swingable about the left and right axes and can be disconnected. In addition,
The pin 76 fitted in the concave portion 78a may be prevented from coming off by a stopper member.

On the body 53 of the moving vehicle body 2 is mounted a support frame 41 having a portal shape in a front view so as to straddle the inclined conveyor mechanism 4. On the support frame 41, an engine, a generator, a fuel tank and the like are mounted. And the control means 12 and the elevating means 24 are provided. The elevating means 24 is a winch for winding the cable 79, and the tip of the cable 79 is
And the front part of the inclined conveyor mechanism 4 is suspended by holding the front part of the inclined conveyor mechanism 4 by operating the winch, and the front part of the inclined conveyor mechanism 4 is moved up and down by stopping the winch. It can be held at the required height. The winch is of a manual type, but may be of an electric type.

The inclined conveyor mechanism 4 includes a front connecting means 2
5F is located at the approximate center of gravity of the inclined conveyor mechanism 4 in the front-rear direction, supported by the moving vehicle body 2 by the front connecting means 25F, and the grounding sled body 50 is grounded with the rear connecting means 25R disconnected. In that state, ground work for transferring the ground and the seedling box N is performed. Then, when the elevating means 24 is operated to lift the front part of the inclined conveyor mechanism 4 from the ground, the pin 76 is fitted and received in the concave part 78a, and the rear connecting means 25R is connected, the solid line in FIG. As shown, the front portion of the inclined conveyor mechanism 4 is in a posture that can move without hitting the ground. Such a posture is adopted when moving in a nursery or the like.

When the inclined conveyor mechanism 4 disconnects the front connecting means 25F from the front floating position, and further operates the elevating means 24 to rotate the inclined conveyor mechanism 4 about the rear connecting point. As shown by a two-dot chain line in FIG. 11, the front part can be raised greatly, and such a posture is obtained when the seedling box ground treatment apparatus 1 is loaded on a bed such as a truck using a step board. This is effective for avoiding the section from interfering with the step board. As described above, the inclined conveyor mechanism 4 sets the connecting pivot point at the time of ground work at the middle part in the front-rear direction, particularly at the position of the center of gravity.
The front-rear balance is improved and the inclined conveyor mechanism 4
Can be extended upward and rearward, and the elevating means 2 can be extended.
4, the posture of the inclined conveyor mechanism 4 can be changed easily and easily.
Can be maintained.

Note that even if only the front connection means 25F or only the rear connection means 25R can be disconnected, and the other is a fixed connection point, the front of the inclined conveyor mechanism 4 can be raised and lowered. In the above-described embodiment, the inclined conveyor mechanism 4 is in a position where the seedling box N can be transferred in a state where the rear connecting means 25R is disconnected. Even in this state, the grounding sled body 50 is in contact with the ground. However, as shown in FIG. 10, the support frame 41 and the rear pin 76 are connected to the auxiliary support means 1.
3 may be configured to hold the posture.

The auxiliary support means 13 is formed of a connecting body 81 such as a turnbuckle, and has one end pivotally connected to the upper portion of the support frame 41 and the other end fitted and connected to a pin 76. At the other end, a long hole 81a that fits into the pin 76 is formed to allow a slight elevation of the front part of the inclined conveyor mechanism 4.
That is, the connecting body 81 holds the inclined conveyor mechanism 4 in a posture capable of transferring the seedling boxes while allowing up and down movement following the unevenness of the ground. It can be changed to the front floating posture (upward standby posture).

In FIGS. 1, 2, and 12 to 15, a carriage 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, and has a front wheel 27F.
And a rear wheel 27R, which can be moved by being pushed artificially, and is provided with a connecting means 28 for connecting to the moving vehicle body 2 in a state where the front wheels are lifted. The connecting means 28 has a concave portion 28 a 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 to a is set to be slightly longer than the distance from the ground to the connected portion 31. By inserting the connected portion 31 into the concave portion 28a while lifting the front portion of the bogie 26, When the movable body 2 is steered, the bogie 26 easily follows the steering when the vehicle 26 is connected and the front wheel 27F is lifted up (a state where the front wheel 27F is lifted up by the dimension T shown in FIG. 1). . In addition,
The wheels 27 are preferably of a free caster type.

FIG. 22 shows a first modification of the connecting means 28. The connecting means 28 is rotated from a state in which the front wheel 27F is connected to the connected part 31 of the bogie 26 in a grounded state. It has a connecting member 32 that lifts 31. A plurality of connecting members 32 are provided on a shaft 84 pivotally supported by the body 53, and each of the distal ends has a concave portion 32 for receiving the connected portion 31.
a, and by rotating the lever 85 connected to the shaft 84, the connected part 31 received in the recess 32a in a substantially horizontal state is lifted by turning upward, thereby lifting the front part of the bogie 26. It is made to be.

The lever 85 can be fixed at a rotated position. Further, the connected portion 31 is provided on the body 53,
The connecting member 32 may be provided on the truck 26 so as to be rotatable downward, and the connecting member 32 may be driven by an actuator. FIGS. 23 and 24 show a second modification of the connecting means 28. The connecting means 28 includes a floating connecting portion 29 for connecting the bogie 26 in a front wheel floating state, and a front wheel 27F.
Free connecting part 3 that connects the robot to the ground so that it can move up and down relatively
0. A connecting member 86 made of a plate material is fixed to the left and right of the rear end of the body 53, and the left and right connecting member 86 is fixed.
A floating connection portion 29 is formed by erection of a rod material on the left and right, and a vertically long slot 86a is formed in the left and right connection structure 86, and the long hole 8a is formed.
A free connecting portion 30 is formed by inserting a bar into 6a.

On the other hand, the connected portion 31 of the carriage 26 is provided with a connecting arm 87 having a downward recess 87a.
Of the connecting arm 87 while lifting the front part of
a into the floating connection portion 29, the front wheel 27F
Can be connected in a raised state, and the front wheels 27F
The free connecting portion 30 is fitted into the downward concave portion 87a of the connecting arm 87 while being grounded, and is prevented from coming off with the screw 88, so that the free connecting portion 30 can be relatively vertically moved within the range of the long hole 86a. Trolley 26 is the front wheel 2
7F is pulled by the moving vehicle body 2 with the ground contacting.

The truck 26 has a trailing truck 33 at its rear.
Are connected by the subsequent connecting means 34. As shown in FIGS. 12 to 15, the subsequent connecting means 34 is a roller conveyor truck capable of placing and transporting the seedling box N, and includes a connecting pin 90 provided at a lower rear portion of the truck 26 and a lower front portion of the trailing truck 33. , And an operating means 35 for rotating the hook 91 from behind the succeeding bogie 33. The hook 91 has a guide surface 91a on the distal end outer surface, and when the trailing truck 33 approaches the truck 26, the guide pin 91 hits the connecting pin 90 and rotates once to escape,
It is designed to engage with the connecting pin 90.

The operating means 35 is formed of a string or a wire. One end of the operating means 35 is connected to the hook 9 and the other end is connected to the rear part of the succeeding carriage 33. Is rotated in a direction of detaching from the connecting pin 90, and the subsequent bogie 3 is disengaged with the hook 91 detached.
When 3 is moved backward, the connection with the carriage 26 is released.
12 to 15, reference numeral 36 denotes a stopper member also serving as a scraper provided at the rear end of the cart 26, the upper part of which is projected above the seedling box mounting surface 39 of the cart 26. It can be retracted so as to be below the 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 irregular 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 retracting means 37 is a projecting member provided at the front of the succeeding bogie 33. When the subsequent bogie 33 approaches the bogie 26 from the state shown in FIG. 15, the retreating means 37 comes into contact with the lower side of the stopper member 36. To move the upper part of the stopper member 36 below the seedling box mounting surface 39 (the state of FIG. 14).

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, and when the trailing truck 33 is connected to the truck 26, The seedling box N is evacuated so that the seedling box N can be transferred between the carriage 26 and the succeeding carriage 33. By forming the upper edge of the stopper member 36 in a wavy shape or an uneven shape,
It can function as a scraper for scratching the bottom of the seedling box N to remove attached soil.

The stopper member 36 is provided at the rear end of the inclined conveyor mechanism 4 and the retracting means 37 is provided at the front end of the carriage 26, or conversely, the stopper member 36 is connected to the carriage 2
6 and a retracting means 37 provided at the front end of the inclined conveyor mechanism 4.
When the trailing bogie 33 is further connected to the trailing end of the trailing bogie 33, the stopper member 36 is provided at the rear end of the front trailing bogie 33, and the evacuation means 37 is provided at the front end of the rear trailing bogie 33. May be. In any case, since the seedling boxes N are laid on the left and right sides of the seedling box ground treatment device 1 in the nursery, the trolley 26 or the succeeding trolley 33 behind the stopper member 36 is moved far and near, so that the evacuation means 37 is provided.
It is preferable to allow the stopper member 36 to be automatically retracted or protruded by operating the stopper member 36.

Further, a stopper member 36 higher than the seedling box mounting surface 39 may be fixed on the left and right sides of the carriage 26 and the succeeding trolley 33 so as to be retractable to a position lower than the seedling box mounting surface 39. Next, the processing operation of the seedling box N in the seedling box ground treatment apparatus 1 according to the first embodiment will be described. When collecting seedling boxes N in which a large number of sheets are laid in a row in a horizontal state or a vertical state in a nursery, the inclined conveyor mechanism 4 is raised by the elevating means 24 to the solid line position in FIG. Move the ground treatment device 1 to the nursery,
Are arranged in parallel to the front-back direction of.

At this time, the trolley 26 may be connected to the body 53 in advance, or may be connected to the nursery. The trolley 26 moves with the front wheel 27F raised during movement and during the seedling box collection operation. Since it is connected to the vehicle body 2, it follows the steering of the moving vehicle body 2 well. The inclined conveyor mechanism 4 is lowered by the elevating means 24 to ground the ground sled body 50, and the tip 17 of the claw member 17 is
a 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 this state. 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 to lift the end of each seedling box N, and the claw member 1
7 comes into contact with the horizontal bar 68 of the actuating means 20, the unstable switching means 19 is actuated, and the pick-up member 15 is folded into two positions, and the claw member 17 jumps up with respect to the arm member 18 from the seedling box N. Then, the seedling box N falls onto the conveyor means 3.

Pickup member 15 in two folded positions
Is returned to a substantially straight posture by the operation of the rocking means 21,
When the horizontal bar member 72 of the swinging means 21 returns to the original position, the picking-up member 15 is returned to the hanging posture in which the picking member 15 can be engaged with the next seedling box N. If the picking-up member 15 fails to pick up the seedling box N, or if the picking-up mechanism 7 is not provided, the rotating body 9 of the lifting means 5 abuts on the seedling box N on the ground while rotating, and the protruding portion 8 has an edge. Part Na, and the seedling box N is strongly lifted.
The seedling box N is placed on the conveyor means 3 with vertical vibration.

When the protruding portion 8 of the rotating body 9 projects from the conveyor surface 38 of the conveyor means 3, the seedling box N placed on the conveyor means 3 is also picked up by the pick-up member 15 by the lifting means 5. The lifted one also has
And intermittently vibrates, so that the soil adhering to the bottom is removed. 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 of the conveyor means 3 and transferred to the carriage 26, and is stopped by the stopper member 36 at the rear end of the carriage 26. Are stored on the seedling box mounting surface (conveyor surface) 39. The seedling box N on the carriage 26 is artificially taken out. At the time of this removal,
The upper edge of the stopper member 36 is used as a scraper to remove soil adhering to the lower surface of the seedling box N.

When the trailing truck 33 is connected to the truck 26, the trailing truck 33 is approached from right behind the truck 26, connected by the trailing connecting means 34, and the stopper member 36 is connected to the retracting means 37.
To retreat below the seedling box mounting surface 39. When separating the succeeding trolley 33 on which the collected seedling boxes N are placed from the trolley 26 and taking it out of the nursery, the operating means 35 is operated immediately after the subsequent trolley 33 to disconnect the subsequent connecting means 34.
When the seedling box N is unfolded in the nursery, the pick-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.
Is not used, so that the projection 8 of the rotating body 9 is
Is stopped without protruding from the conveyor surface 38.

Then, the inclined conveyor mechanism 4 is moved up and down
4, the seedling box ground treatment apparatus 1 is moved to the laying end of the nursery, and the elevating means 2 is moved up to the solid line position in FIG.
At 4, the inclined conveyor mechanism 4 is lowered to ground the sled body 50, and the rotating body 9 of the lifting means 5 is brought close to the ground.
The seedling box N may be placed on the carriage 26 and the succeeding carriage 33 in advance, or may be placed later. The seedling box N is sent from the carriage 26 onto the carriage 26 while the conveyor means 3 is reversed.
In this state, the moving vehicle body 2 is moved backward, and the seedling boxes N are sequentially deployed on the ground from the conveyor means 3.

FIG. 16 shows a second embodiment of the seedling box-to-ground treatment apparatus 1. Only the differences from the first embodiment will be described below. The inclined conveyor mechanism 4
The conveyor surface 38 of the conveyor means 3 has a middle-high shape to form a front steeply inclined conveyor surface 38F and a rear gentlely inclined conveyor surface 38R, and the inclination angle of the seedling box N inclined at the time of picking up is gradually changed. It is made loose so that it can be smoothly transferred to the carriage 26 having a substantially horizontal or rear downward facing mounting surface. The conveyor frame 55 of the inclined conveyor mechanism 4 is pivotally supported by the rear connecting means 25R with respect to the body 53, and the front connecting means 25F is relatively movable in the up-down direction. It swings around the connecting means 25F.

The support frame 6 is divided into two parts, the front support frame 6F for supporting the pick-up mechanism 7 is attached to the rear support frame 6R so as to be adjustable in the front-rear position, and the front and rear of the pick-up mechanism 7 with respect to the inclined conveyor mechanism 4. The position can be adjusted appropriately. A guide member 94 is provided at the rear of the movable body 2 to guide the left and right positions of the truck 26 when the truck 26 is connected. Is provided.
The connecting means 96 for connecting the carriage 26 to the moving body 2 has a structure similar to that of the subsequent connecting means 34 in the above-described embodiment, and a hook 98 pivotally supported by the carriage 26 on a connected rod 97 provided on the moving body 2. The hook 98 can be released from the rear of the carriage 26 by operating means 99 such as a string, wire, rod, or the like.

The bogie 26 has four lower supports 101 erected on a base 100 having front and rear wheels 27F and 27R, and the roller conveyor 102 pivotally supports the upper portions of the four connecting supports 103. Of the connecting column 103 is fitted into the lower column 101 and fixed with bolts or the like.
3 is connected to the lower support 101 so that the height position can be adjusted, and the seedling box mounting surface 39 of the roller conveyor unit 102 can be placed in a horizontal posture.
It is designed to be able to tilt backward and downward. A trailing truck having a seedling box mounting surface inclined backward and downward can also be connected to the truck 26.

The present invention is not limited to the above embodiment, but can be variously modified. For example,
The configuration and the modified examples of the first and second embodiments may be rearranged, or the seedling boxes N may be deployed and collected only by the inclined conveyor mechanism 4 without connecting the carriage 26 and the subsequent carriage 33. . When the lifting means 5 is provided together with the pick-up mechanism 7, the lifting means 5 serves as an auxiliary means for picking up the seedling box N. However, the lifting means 5 may be used alone to collect the seedling box N without providing the picking-up mechanism 7. When the lifting means 5 is used alone, it becomes a vibration means, and even when used together with the picking-up mechanism 7,
If the protrusion 8 protrudes from the conveyor surface 38, it becomes a vibrating means. However, a vibrating means for locally moving the belt 56 up and down in the conveyor means 3 may be separately provided.

The grounding body 50 preferably has a sled shape that does not sink the body on a soft ground, but other grounding bodies such as grounding wheels may be used. The driving device 42 includes an engine and a generator, and the inclined conveyor mechanism 4, the pick-up mechanism 7, the crawler traveling device 54, and the like use an electric motor, but may be configured to be driven by a hydraulic pump and a hydraulic motor. Good. Although the cart 26 and the trailing cart 33 use roller conveyor carts, they may be belt conveyors or other carts having a conveyor surface.

In the case where the conveyor means 3 is reversed to unfold the seedling box N, the lifting means 5 may be removed, and the conveying speed of the conveyor means 3 may be the same as the moving speed of the moving vehicle body 2. The horizontal distance between the protrusions 8 of the rotating body 9 in the lifting means 5 and the horizontal distance between the pick-up members 15 in the pick-up mechanism 7 may be determined whether the seedling box N is placed vertically or horizontally, or the central passage. Even if there is, it is set as a dual-purpose specification so that two or more can be engaged with one seedling box N, but it can be made a special specification for vertical installation and horizontal installation, or can be rearranged or adjusted It is also possible to configure so as to switch between a vertical setting corresponding state and a horizontal setting corresponding state.

Although the driving device 42 is mounted on the moving vehicle body 2, the engine and the generator are provided as separate devices, and power is supplied to the seedling box ground treatment device 1 by a power cable or by a power line. May be.

[0062]

According to the present invention described in detail above, first,
Since the lifting means 5 is provided at the front end of the inclined conveyor mechanism 4, even if the roots of the seedlings in the seedling box N are entangled with the ground, they can be lifted and transported reliably and continuously. Secondly, since the lifting means 5 is rotatably provided at the front end of the inclined conveyor mechanism 4, even if the roots of the seedlings in the seedling box N are entangled with the ground, they are reliably lifted and transported intermittently. It can be treated and vibrated to remove attached soil.

Third, since the pick-up mechanism 7 is provided prior to the lifting means 5, the collection of the seedling boxes N can be performed in two stages, and it is possible to eliminate a collection error. Fourthly, since the lifting means 5 is formed by the rotating body 9 having the protrusions 8 at the outer peripheral surface at an axial interval, a mechanism for lifting the seedling box N can be simply configured, and the driving becomes easy. Fifth, since the rotating body 9 is provided with the irregularly shaped cross-section members 10 having circumferential irregularities on the outer peripheral surface at intervals in the axial direction, the rotating body 9 can be easily configured.

Sixth, since the rotator 9 is formed by providing the protrusion 8 on a rod-shaped member having an elliptical cross section, the edge Na of the seedling box N
The rotating body 9 to be securely engaged with and lifted can be easily formed. Seventh, since the power is transmitted from the conveyor means 3 to the lifting means 5 by the transmission means 11, the lifting means 5 can be driven by the conveyor means 3, and the lifting means 5 lifts the seedling box N at the transport speed or quickly lifts it. Or you can. Eighth, since the transport speed of the conveyor means 3 is synchronized or asynchronous with the travel speed of the moving vehicle body 2 by the control means 12, the conveyor means 3 can be set to an optimal transport speed for seedling box processing.

Ninth, since the conveyor means 3 can be rotated in the normal and reverse directions, the conveyor means 3 can be normally rotated to collect the seedling boxes N, and the seedling boxes N can be inverted to unfold the seedling boxes N from the conveyor means 3 to the ground. it can. Ninth, when the conveyor means 3 is reversed and the seedling box N is deployed on the ground, the lifting means 5 can be stopped so as not to hinder the deployment of the seedling box N. First
1, since the inclined conveyor mechanism 4 is provided with the vibration means 5, the seedling box N picked up by the pick-up mechanism 7 and placed on the inclined conveyor mechanism 4 is vibrated by the vibration means 5 to remove the adhered soil. It can be collected and transported while dropping.

[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 cross-sectional side view of the front part of the apparatus at the start of picking up a seedling box.

FIG. 6 is a cross-sectional side view of the front part of the device when the picking of the seedling box is completed.

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

FIG. 8 is a side view of the lifting means.

FIG. 9 is a perspective view of a rotating body.

FIG. 10 is a perspective view in which auxiliary support means is provided.

FIG. 11 is a side view showing a lifting posture of the inclined conveyor mechanism.

FIG. 12 is a side view showing a truck and a trailing truck.

FIG. 13 is a plan view of the same.

FIG. 14 is a side view showing a state when the stopper and the bogie connecting structure are connected.

FIG. 15 is a side view showing the unconnected state.

FIG. 16 is a side view showing a second embodiment of the present invention.

FIG. 17 is a perspective view showing a first modification of the rotating body.

FIG. 18 is a perspective view showing a second modification of the rotating body.

FIG. 19 is a perspective view showing a third modification of the rotating body.

FIG. 20 is a perspective view showing a fourth modification of the rotating body.

FIG. 21 is a perspective view showing a fifth modification of the rotating body.

FIG. 22 is a side view showing a first modification of the connecting means.

FIG. 23 is a side view showing a second modification of the connecting means.

FIG. 24 is an exploded perspective 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 5 Lifting means 6 Support frame 7 Pickup mechanism 8 Projection 9 Rotating body 11 Transmission means 12 Control means 15 Pickup member 16 Switching mechanism 17 Claw member 18 Arm member 19 Unstable switching means 20 Operating means 21 Swing means 24 Elevating means 25 Connecting means 26 Dolly N Seedling box Na Edge

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Michio Tezuka 44-3 Hirade Industrial Park, Utsunomiya City, Tochigi Prefecture Inside Suzutec Co., Ltd. (72) Inventor Masayuki Harada 64 Ishizukitamachi, Sakai City, Osaka Prefecture Inside the factory (72) Inventor Masato Yamaguchi 64 Ishizu-Kitamachi, Sakai City, Osaka Prefecture Inside the Kubota Sakai Factory (72) Inventor Yoshiaki Goto 64 Ishizu-Kitamachi, Sakai City, Osaka Prefecture F-term in the Kubota Sakai Factory 2B027 ND03 NE02 NE09 QA05 TC07 TC09 TC13 TC15 TC17 TC19

Claims (11)

[Claims] An inclined conveyor mechanism having a conveyor means inclined upward and rearward is provided on a moving vehicle body, and a front end of the inclined conveyor mechanism is engaged with an edge of a seedling box deployed on the ground and lifted. A seedling box-to-ground treatment apparatus comprising lifting means. 2. An inclined conveyor mechanism having a conveyor means inclined upward and rearward on a movable vehicle body, wherein the inclined conveyor mechanism is intermittently rotated at the front end of the inclined conveyor mechanism at the edge of a seedling box deployed on the ground. A seedling box-to-ground treatment apparatus, comprising lifting means for engaging and lifting. 3. The pick-up mechanism according to claim 1, wherein a pick-up mechanism is provided on the support frame protruding forward from the inclined conveyor mechanism, the pick-up mechanism being hooked on the edge of the seedling box prior to the lifting means. The described seedling box ground treatment apparatus. 4. The seedling box ground treatment apparatus according to claim 1, wherein said lifting means is formed of a rotating body having a projection at an axial interval on an outer peripheral surface. . 5. The seedling box-to-ground treatment apparatus according to claim 4, wherein the rotating body is provided with irregularly shaped cross-section members having circumferential irregularities on the outer peripheral surface at intervals in the axial direction. 6. The rotator is formed of a rod-like member having an elliptical cross section, and fits in the outer peripheral region of the largest diameter portion of the bulging portion at an axial interval on the outer surface of the bulging portion. The seedling box-to-ground treatment apparatus according to claim 4, wherein a projection is provided. 7. The seedling box-to-ground treatment apparatus according to claim 1, further comprising transmission means for transmitting power synchronously or asynchronously from the conveyor means to the lifting means. 8. The seedling box ground treatment apparatus according to claim 1, further comprising control means for synchronizing or asynchronously moving the conveyor means with the moving speed of the moving vehicle body. 9. The seedling box ground treatment apparatus according to claim 1, wherein said conveyor means is reversible. 10. When reversing said conveyor means,
10. The seedling box ground treatment apparatus according to claim 9, wherein the lifting means is capable of stopping the operation. 11. An inclined conveyor mechanism having a rearwardly inclined shape is provided on a moving vehicle body. The inclined conveyor mechanism is provided in front of the inclined conveyor mechanism while engaging with an edge portion of a seedling box deployed on the ground and lifting the same. Arrange the pick-up mechanism to put on,
A seedling box ground treatment apparatus, characterized in that the inclined conveyor mechanism is provided with vibration means.