JPH11289872A - Loading device of seedling for rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a miniaturized loading device capable of storing seedlings as much as possible. SOLUTION: This loading device has seedling-storing parts A at right and left positions in the interior of a frame body 2, ball screw shafts 15 at the outside part of each of the seedling-storing parts A, lifted and lowered frames 4 lifted and lowered by the driving farce from ball nuts in which the ball screw shafts are screwed and installed in a cantilever-state, and plural shelf-like members 5 in states hung by the lifting and lowering frames 4. The loading device is constituted so that when the frame 4 is under lifting, each shelf-like members 5 may be arranged at a prescribed interval, and when the frame 4 is lowered, the plural shelf-like members 5 may be laid on another.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-stage shelf member for placing and supporting a seedling carrier on a frame so as to be movable up and down. The present invention relates to a seedling loading device for a rice transplanter, comprising: a transport mechanism for feeding a seedling carrier from the transport mechanism; and a conveyor-type payout mechanism for sequentially feeding seedling carriers from the transport mechanism to the outside of the frame.

[0002]

2. Description of the Related Art Japanese Patent Laid-Open Publication No. Hei 10-33019 discloses a technique similar to the above-described apparatus for loading seedlings for rice transplanters. On the other hand, seedling boxes containing seedlings can be stored in shelves in a plurality of angles on the left and right sides of a chain conveyor that can be raised and lowered, and when the seedling box is lowered by the driving force of the electric motor, the seedlings are raised. The boxes can be sent out by a roller conveyor, and the seedling transport container is configured to be used by being mounted on a truck bed.

[0003]

Further, in order to improve the working efficiency, this type of loading device is preferable in that the amount of seedlings that can be stored in the device is large, and at the same time, the seedling can be transported to a narrow ridge. It is also important that it can be mounted on the bed of a small truck such as a wheel. However, when raising and lowering the seedling box by arranging chains on both sides of the space that supports the seedling box as in the conventional example, the device becomes large only in the space where the chain is arranged, and it can not be mounted on a small truck. Conceivable. Specifically, mat-type seedlings used for rice transplanters are 6
Since it is about 0 cm x 30 cm in size and the width of the light four-wheel carrier is 140 cm or less, consider a device that can place two seedlings in a horizontal position on this carrier. If the chains are arranged on the left and right sides of each seedling, it becomes difficult to reduce the width of the device to 140 cm or less.

[0004] It is an object of the present invention to reduce the size of a loading device capable of storing as many seedlings as possible.

[0005]

According to a first aspect of the present invention, as described at the outset, a plurality of stages of shelf members for placing and supporting seedling carriers on a frame can be moved up and down. A transport mechanism for feeding the seedling carrier placed and supported on the shelf member to the end of the frame, and a conveyor-type dispensing mechanism for sequentially feeding the seedling carrier from the transport mechanism to the outside of the frame. In the rice seedling loading device provided with the rice transplanter, an operating mechanism reciprocating in a vertical direction by a driving force from an actuator, and the operating force from the operating mechanism acts on one side to move up and down with respect to the frame. An operating lift frame is provided, and the plurality of shelf-shaped members are supported in a suspended state with respect to the lift frame. The operation and effect are as follows.

According to a second feature of the present invention (claim 2), in claim 1, the operating mechanism is supported so as not to be vertically movable with respect to the frame, and is driven by a driving force from the actuator. It consists of a screw shaft in a vertical position that is rotated and a nut member screwed to the screw shaft, and the nut member is connected to a side portion of the lifting frame. The effects are as follows.

[0007] A third feature of the present invention (claim 3) is that, in claim 2, a pair of the seedling storage sections comprising the elevating frame and a plurality of shelf-like members suspended and supported by the frame are arranged side by side. In addition, the screw shaft is disposed outside these seedling storage sections, and the operation and effect are as follows.

A fourth feature of the present invention (claim 4) is that in claim 2 or 3, when the loading device is mounted on a truck, the screw shaft overlaps above the side plate of the truck bed in plan view. It is located at the position, its action,
And the effect is as follows.

A fifth feature of the present invention (claim 5) is that, in claim 1, a seedling storage section comprising the elevating frame and a plurality of shelf-shaped members suspended and supported by the frame is laterally juxtaposed. In addition, by providing the operation mechanism corresponding to each seedling storage unit, each elevating frame is configured to be able to independently ascend and descend independently, and the operation and effect are as follows. is there.

According to a sixth aspect of the present invention, in the first aspect, the loading device is mounted on a truck.
The dispensing mechanism is configured to be switchable between an inclined position in which the lower end of the transfer is grounded and a vertical position in which the transfer end is directed upward so as to cover the surface on the side where the seedling carrier is sent out from the shelf member. And its action, and
The effects are as follows.

A seventh feature (claim 7) of the present invention is that in claim 6, the seedling storage section comprising the elevating frame and a plurality of shelf-shaped members suspended and supported by the frame is laterally juxtaposed. At the same time, the payout mechanism is formed to have a width for sending out the seedling carrier from one seedling storage unit, and the payout mechanism is configured to be capable of changing its position by moving the seedling storage unit in the juxtaposition direction, The operation and effect are as follows.

According to an eighth feature of the present invention (claim 8), in the first to seventh aspects, the column-shaped member provided in the frame body is vertically moved to move the vertical frame and the shelf-shaped member up and down. It is also used as a guide member for preventing displacement in the lateral direction while allowing, and its operation and effect are as follows.

A ninth feature of the present invention (claim 9) is that, in claim 1, the member for suspending and supporting the shelf-like member with respect to the elevating frame is a link member that expands and contracts or expands and contracts, a wire or the like. Like a chain, when the elevating frame is raised, the vertical interval between the respective shelf-shaped members is maintained at a set value, and when the elevating frame is lowered, a flexible member that allows the shelving members to overlap each other is configured. The operation and effect are as follows.

According to a tenth feature of the present invention (claim 10), in claim 1, an opening through which the transport mechanism can be inserted in a vertical direction is formed at the bottom of the shelf-like member. A sensor configured to be able to send out the seedling carrier supported by the shelf-like member by the transfer mechanism inserted through the opening according to the setting, and to detect that the shelf-like member is at a height at which the seedling carrier can be sent out by the transfer mechanism. When carrying out the seedling carrier, the controller is provided with a control device for stopping the lowering operation of the lifting frame by the actuator when the sensor reaches the detection state, its operation, and, The effects are as follows.

According to an eleventh feature of the present invention (claim 11), in claim 10, the transport mechanism and the dispensing mechanism are configured such that the driving force applies a transport force to the seedling carrier in the delivery direction. , The operation of the control device is set so as to control each of them simultaneously, and the operation and effect are as follows.

A twelfth feature (claim 12) of the present invention is that, in claim 1, the payout mechanism and the transport mechanism are provided with a conveyer capable of rotating forward and reverse, and the payout mechanism is used when the seedling carrier is stored. The seedling carrier from the dispensing mechanism is fed to the shelf by the conveyor and the conveyor of the transfer mechanism, and when the feeding of a predetermined number of seedling carriers to the shelf is completed, the shelf-like member is automatically raised. The control mode of storage is set, and the control device of the automatic dispensing control mode is set so as to send out the seedling carrier from the shelf-like member through the dispensing mechanism by the reverse operation. And the effect is as follows.

A thirteenth feature (claim 13) of the present invention is that, in claim 12 or 13, a potentiometer for measuring the height of the lifting frame in a stepless manner is provided. And the effect is as follows.

A fourteenth feature of the present invention (claim 14) resides in that, in claim 1, a caster attaching / detaching portion is formed at the bottom of the frame, and the operation and effect are as follows. It is.

According to a fifteenth feature of the present invention, in the first aspect, the frame body is raised by receiving a lowering operation force of the elevating frame when the frame body is in contact with the ground.
The contact portion for the arm portion of the auxiliary support standing on the ground is formed on the lower surface of the elevating frame, and the operation and effect are as follows.

According to a sixteenth feature of the present invention (claim 16), in accordance with claim 15, when the frame is raised, the auxiliary column can be freely retracted toward the frame so as to maintain the raised state of the frame. The contact portion for the holding arm portion is formed on the lower surface of the frame body, and the operation and effect are as follows.

According to the first feature, when the actuator is operated, the operating force acts on one side of the elevating frame to perform the elevating operation. When the elevating frame is raised, the shelf-like member is suspended. Will be lifted. In other words, in this configuration, the shelf-like member can be moved up and down by the operating mechanism arranged on one side of the elevating frame, so that the width of the device can be reduced as compared with the case where the operating mechanism is arranged on both sides. In addition, since the shelf-shaped member is suspended, a member that operates with high precision, such as a sprocket and a rotating shaft, is required as compared with a conventional example in which a chain is driven to move up and down. do not do.

According to the second feature, since the nut member is moved up and down by rotation of the screw shaft, the nut member can be moved up and down with a strong force while having a simple structure, and the length corresponding to the up-and-down stroke can be increased. Since it is only necessary to provide a screw shaft having a small diameter, the structure can be made smaller than a case where a hydraulic cylinder is used.

According to the third feature, since the seedling carrier can be stored in each seedling storage section, the storage amount of the seedlings can be doubled, and at the same time, since the screw shafts are arranged outside these, the respective seedlings can be stored. The width of the device can be reduced compared to the case where the operating mechanism is arranged on both sides of the storage section

According to the fourth feature, the width of the seedling storage portion can be widened while the lower portion of the apparatus is accommodated within the width of the side plate of the truck bed while avoiding the buffer between the truck bed and the screw shaft.

According to the fifth feature, the shelf-like members of the plurality of seedling storage units are moved up and down, so that the seedling carriers from the respective seedling storage units can be independently taken out.

According to the sixth feature, by setting the dispensing mechanism in the inclined position, the seedling carrier placed and supported on the shelf-like member can be sent out from the lower end of the dispensing mechanism to the ground. . Further, when the dispensing mechanism is not used, by setting the dispensing mechanism in the vertical orientation, the dispensing mechanism does not protrude rearward, and the dispensing mechanism closes the delivery side of the seedling carrier from the shelf member. Therefore, the rearward movement of the seedling carrier can be prevented.

According to the seventh feature, the payout mechanism is one
Regardless of the width of the seedling carrier from one seedling storage unit, the payout mechanism is moved in the horizontal direction to move the seedling carrier from the seedling storage unit at the corresponding position among the plurality of seedling storage units. Can be sent out.

According to the eighth feature, while using the columnar member provided on the frame as a strength member of the frame, the columnar member prevents lateral displacement of the elevating frame and the shelf-like member. Therefore, while stabilizing the posture of the seedling carrier at the time of delivery, for example, even when the device is mounted on a truck bed and moved, the lateral movement of the shelf member is prevented to prevent the posture of the seedling carrier. Disturbance can also be suppressed.

According to the ninth feature, when the lifting frame is raised, the flexible member maintains the space between the shelf members in the vertical direction at a predetermined value to form a space for accommodating the seedlings. In some cases, the shelves are stacked so that the seedling carrier can be fed at a lower position than the uppermost shelves.

According to the tenth feature, when taking out the seedling carrier from the shelf-like member, the control device stops descending at the timing when the sensor detects the shelf-like member by the lowering operation of the elevating frame. Since the stop level is a level at which the transfer of the seedling carrier is possible, the transfer of the seedlings can be started by the transfer mechanism immediately after the stop.

According to the eleventh feature, the seedling carrier supported by the shelf member can be automatically sent out of the frame by simultaneous driving of the transport mechanism and the payout mechanism.

According to the twelfth feature, when the seedling carrier is fed into the apparatus, the seedling carrier is simply placed on the dispensing mechanism, and the driving force of this dispensing mechanism and the driving force of the transport mechanism cause the seedling carrier to be racked. The seedling carrier is placed on the shelf-shaped member, and the shelf-shaped member rises after this placement, so that the seedling carrier can be automatically sent to the lower shelf-shaped member. When the seedling carrier of the member is sent out, the reverse operation causes the seedling carrier of the shelf-shaped member to be automatically sent out by the transport mechanism and the payout mechanism.

According to the thirteenth feature, the relative height of the lifting frame with respect to the frame can be measured steplessly, so that the relative height of each of the plurality of shelf-like members suspended from the lifting frame with respect to the frame is determined. By grasping this, it is possible to easily determine which of the plurality of shelf-shaped members is at a level that can be transported by the transport mechanism.

According to the fourteenth feature, the apparatus can be easily moved by providing the caster to the attaching / detaching portion at the bottom of the frame, and the caster is removed when the apparatus is mounted on the truck bed. As a result, the truck can be easily fixed to the carrier.

According to the fifteenth feature, the lower end of the frame body is lowered from the ground by lowering the elevating frame with the driving force of the actuator while the abutting portion of the elevating frame is in contact with the arm portion of the auxiliary support. It becomes possible to lift, and after arranging the truck bed below in a state where the whole apparatus is lifted in this way, it becomes possible to mount the apparatus on the truck bed by operating the lifting frame in the ascending direction, It becomes possible to unload the truck from the truck bed by the reverse operation.

According to the sixteenth feature, as in the fifteenth feature, after the device is lifted by the driving force of the actuator, the holding arm is brought into contact with the contact portion on the lower surface of the frame to lift the device. Then, the lifting frame is raised, and the contact portion of the lifting frame is brought into contact with a higher-level arm portion to lower the lifting frame, whereby the apparatus can be lifted to a higher position. .

[Effects of the Invention] Therefore, a stacking device which can store many seedlings in a small size having a small area in a plan view can be constituted by using simple and inexpensive parts. . Further, it is possible to raise and lower with a strong driving force while reducing the size of the operation mechanism for raising and lowering the shelf member (claim 2), and to increase the size in the width direction while doubling the storage capacity of the seedlings. It is possible to reduce the size by suppressing the size (claim 3), and to increase the storage space for the seedlings by rational arrangement of the screw shaft (claim 4), which is required among a plurality of seedling storage sections. It is possible to arbitrarily take out seedlings from the plant (Claim 5), and when not used for switching the position of the dispensing mechanism, the dispensing mechanism prevents movement of the seedling carrier while preventing movement of the seedling carrier. It is possible to send out seedlings (claim 6), and it is possible to send out seedlings from any seedling storage unit without increasing the width of the payout mechanism (claim 7).

Further, even without a special guide member, the position of the shelf-shaped member can be stabilized and the seedlings stored in the seedling carrier can be prevented from being damaged or distorted (claim 8), which is simple and inexpensive. While using the member, while accommodating the seedling carrier without difficulty in the vertical direction of the shelf-like member,
It is possible to easily put the seedling carrier into and out of the upper shelf member at a low level (claim 9), and to set the shelf member to an appropriate height regardless of whether the seedling carrier is placed on or taken out of the shelf member. (See Claim 10), so that the seedling carrier can be automatically sent out by the transport mechanism and the payout mechanism (claim 1).
1) The storage and delivery of the seedling carrier can be automatically performed (claim 12), and the level of each of the plurality of shelf-like members is grasped with high accuracy, and the seedling carrier is transferred to the required shelf-like member. Feeding and feeding can be easily performed (claim 13), and easy movement by casters,
This makes it possible to firmly fix the truck to the bed with the caster removed (claim 14), and works both for mounting the apparatus on the truck bed and for lowering the apparatus mounted on the truck bed to the ground. Can be easily carried out without imposing a burden on labor (claim 1).
5) The work of mounting the equipment on the truck bed of a higher level truck and the work of lowering the equipment mounted on the truck bed to the ground can be easily performed without imposing a labor burden on the operator ( Claim 16).

[0039]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a light four-wheel truck 1
Of the rice seedlings for rice transplanters mounted on the loading platform 1A. This loading device includes a pair of left and right seedling storage sections A, A inside a frame 2 and transport mechanisms B, B, arranged below each of the seedling storage sections. Is provided.

The frame 2 has a plurality of upper frames 2T #.
And a plurality of lower frames 2L # and a plurality of columnar frames 2P #, and the seedling storage section A has a length of approximately 60 cm in the vertical direction (longitudinal direction) as a seedling carrier. A mat-shaped seedling W held in a seedling box 3 having a size of about 30 cm is stored in the seedling storage section A, as shown in FIGS. 11 and 12, a lifting frame 4 and a lifting frame. And four shelf-shaped members 5 # suspended from and supported by a link L as a flexible member. The front and rear frames 5 made of a channel material as shown in FIG.
F, 5R and the left and right frames 5S, 5S are welded and connected to each other to form a rectangle having an opening 5H at the bottom. The lateral dimension is a value at which the nursery box 3 can be placed in a horizontally long posture, and the longitudinal dimension is the nursery box. 3 is manufactured to a value capable of mounting five sheets, and the lifting frame 4 includes front and rear frames 4F, 4R and left and right frames 4S, 4
S is welded to form a rectangular shape having substantially the same outer shape as the shelf member 5 in plan view, and the left and right frames 4S, 4
S are connected to each other by a plurality of intermediate frames 4T and are manufactured with high strength. The rear frame 5R of the shelf member 5 has a form in which a vertical wall is removed so that the seedling raising box 3 can be taken in and out from the rear position, and a front frame 4F of the lifting frame 4 and a front frame of the shelf member 5 are provided. A pair of tongues 6, 6 in a horizontal position protruding forward are formed on the frame 5 </ b> F, and a frame body is formed with respect to the ascending / descending frame 4 and the through holes formed in the tongues 6, 6 of each of the plurality of shelf members 5. Support frame 2 that constitutes 2
By penetrating P and 2P (an example of a guide member), the vertical frame 4 and the plurality of shelf-shaped members 5 # are restrained from swinging in the lateral direction, and the posture is stabilized.

The link L is a lifting frame 4 in plan view,
The link L is disposed at four positions on the left and right front and rear positions of the shelf member 5, and as shown in FIGS. 7, 11 and 12, each link L is connected to the lifting frame 4, the left and right frames 4 S of the shelf member 5,
4S, 5S, and 5S, each of which has a link piece 8 supported so as to be able to swing around a support shaft 7 in a lateral position with respect to the side surface, and each swing end is connected to be able to bend around the shaft 8 freely. When the elevating frame 4 is raised, the vertical interval between the shelf members 5 # is maintained at a value capable of storing the seedlings, as shown in FIG. 9, and when the elevating frame 4 is lowered, as shown in FIG. The shelf members 5 # can be overlapped so as to be in contact with each other.

Guide rails 11, 11 with a vertical posture are fixed at two places in front and back of both sides of the frame 2, and brackets 12, which are fixed in two places in front and back of the outer side of the lifting frame 4.
The upper and lower rollers 13 contacting the outer surface of the guide rail 11 and the lower roller 14 contacting the inner surface of the guide rail 11 with respect to the roller 12 allow the lifting frame 4 to be cantilevered in a cantilever manner. Supported. A ball screw shaft 15 supported rotatably about an axis in a vertical position with respect to the outer surface position of the frame 2 and immovable in the vertical direction; and a ball screwed to the ball screw shaft 15 An actuating mechanism is provided with a nut 16, the ball nut 16 and an outer portion of the lifting frame 4 are connected via an intermediate member 18, and an upper end of the ball screw shaft 15 is electrically driven up and down as an actuator. Motor 17
Are connected to each other. Further, as shown in FIG. 3, the width of the frame 2 is set to a size that fits within the width of the side plates 1S, 1S of the bed 1A of the truck 1, and the ball screw shaft 15 overlaps above the side plates 1S, 1S in plan view. The horizontal width of the frame 2 is made as large as possible by being arranged at the position.

As shown in FIG. 7 to FIG.
Are a pair of left and right pulleys 22 provided on the shafts 21, 21 at the front and rear positions, an endless belt 23 wound around the front and rear pulleys 22, 22, and a pair of left and right endless belts 2.
A plurality of rolling wheels 24 # for suppressing the drooping of the intermediate position between 3 and 23, and an electric conveyance motor 25 for driving the shaft 21 on the rear side are provided. The seedling raising box 3 supported by the uppermost shelf-like member 5 in a fitted state is placed on the endless belts 23, 23 while being slightly raised from the uppermost shelf-like member 5 so that the nursery box 3 can be transported. Height is set.

As shown in FIGS. 4 to 6, the dispensing mechanism C
Are left and right frames 27, 27 arranged at intervals corresponding to the longitudinal dimension of the seedling raising box 3, and a pair of left and right pulleys 29, provided on shafts 28, 28 at the front and rear positions of the left and right frames 27, 27. 29, a pair of left and right endless belts 30 and 30 wound around the front and rear pulleys 29 and 29, a large number of rolling wheels 31 # for suppressing drooping at an intermediate position between the endless belts 30, 30; A tubular member 33, 33 provided at the front end position of the left and right frames 27, 27 is provided at a lower portion on the rear end side of the frame body 2 in a horizontal position. Is slidable with respect to the guide shaft 34 disposed at
The dispensing mechanism C is fitted around the axis 4 so that it can swing freely.
The whole can be moved in the horizontal direction, and the swing end side can be switched between a posture in which the swing end side contacts the ground as shown in FIG. I have. An engaging member 35 is formed at an intermediate position of the dispensing mechanism C, and a hook 37 that swings integrally with a shaft 36 in a horizontal posture is provided on the upper surface of the frame 2 at the center in the left-right direction. When the dispensing mechanism C is set in the vertical position, the dispensing mechanism C is set to the center position in the left-right direction and the dispensing mechanism C is operated in the vertical direction. By doing so, the engaging member 35 is guided by the guide surface on the lower surface side of the hook 37, and once the end of the hook 37 is once lifted, reaches the engaged state as shown in FIG. It has become something.

An arm 38 fixed to the end of the shaft 36
An operating rod 39 is provided at the swinging end of the hook. When the hook 37 and the engaging member 35 are in the engaged state, the operating rod 39 is operated in the pulling-down direction to thereby engage the hook 37 with the engaging member 35. Is released and the payout mechanism C can be set to the inclined posture. As shown in FIG. 4, when the dispensing mechanism C is set in the vertical orientation, the dispensing mechanism C covers about half of the inner rear part of the left and right storage units A, 5A. As a result, the rearing of the seedling box 3 # placed on the shelf member 5 # is prevented by the contact with the dispensing mechanism C.

As shown in FIG. 11, an upper limit switch 4 for judging that the lifting frame 4 has reached the upper limit by contacting the left and right side surfaces of the frame 2 with the outer portions of the lifting frame 4.
1 and a lower limit switch 42 for judging that the lifting frame 4 has reached the lower limit. The front side of the frame 2 is provided with a shelf by contacting the tongue piece 6 of the shelf member 5. Level switch 4 as a sensor for determining that the seedling member 5 has reached the position where the seedling box 3 placed on the shelf member 5 is placed on the endless belts 23, 23 of the transport mechanism B.
4, it is determined whether the payout mechanism C is located at a position corresponding to the left or right seedling storage section A, with respect to the left and right end positions near the guide shaft 34, as shown in FIG. A left end switch 44 and a right end switch 45 are provided.

As shown in FIGS. 1 and 13, a control box 46 is provided at a front position of the frame 2, and the operation box 4 is controlled via the box 46 and a cable 47.
8 are linked. The control box 46 includes a power switch 50, a control mode switch 51, a transport switch 52, a lift switch 53, and a seedling switch 54.
5 and an up / down switch 56 are provided. or,
The power switch 50 rotates the battery 5 of the truck 1
The control mode switch 51 is configured to be freely switchable between an "ON" position for supplying the electric power from the power supply 7 and an "OFF" position for cutting off the electric power. And the “emergency” position, and the transport switch 52 is pressed to operate the transport motor 25 of the transport mechanism B.
And a state in which the discharge motor 32 of the discharge mechanism C is driven and a state in which the discharge motor 32 is stopped. The lift switch 53 is operated by a toggle-type switching operation.
And a "shelf lowering"("apparatusup") position for lowering the elevating frame 4, and the seedling switch 54 is a toggle type switching operation. The switch is configured to be switchable between a “right” (front) position and a “left” (rear) position so as to select control for either one of the right and left storage sections A. The down switch 56 is of a push operation type.

The control box 46 contains a control device 58 having a microprocessor, and an input / output system is formed for the control device 58 as shown in FIG. That is, the control mode switch 5
1, the signals from the transport switch 52, the lift switch 53, the seedling switch 54, the stop switch 55, the up / down switch 55, and the left and right upper limit switches 41, 41,
A system for inputting signals from the left and right lower limit switches 42, 42, the left and right transport level switches 43, 43, the left end switch 44, and the right end switch 45 is formed, and the left and right lifting motors 17, 17, A system for supplying driving power to each of the left and right transport motors 25 and 25 and the payout motor 32 is formed, and a power system for supplying power from the battery 57 to the control device 58 via the power switch 50 is formed. Have been. In the control device 58, a program is set to perform the following control.

That is, when the control mode switch 51 is set to the "installation" position, the state of the lift switch 53 is determined as shown in the flowchart of FIG.
If the lift switch 53 is set to the "apparatus up" position (step # 101), the up / down switch 5
The right and left lowering switches 42 and 42 are turned on or the stop switch 55 is pressed while the left and right lowering motors 17 and 17 are driven to lower the left and right lifting frames 4 and 4 by pushing the button 6. Control is performed to drive the lifting motors 17 and 17 until they are operated (# 102).
~ # 106 steps). Although not described in detail in the flow chart, at the time of lowering, when one of the left and right lower limit switches 42, 42 corresponding to the left and right lifting frames 4, 4 reaches the ON state, the lower limit switch 4 is turned off.
The drive of the lift motor 17 corresponding to No. 2 is stopped, and the drive of the other lift motor 17 is stopped when the corresponding lower limit switch 42 reaches the ON state.

When the lift switch 53 is set to the "apparatus lowering" position (step # 101), the left and right lifting frames 4, 4 are raised by pressing the up / down switch 56. Lifting motor 17,
17 and the left and right upper limit switches 41, 41
Control is performed to drive the elevating motors 17, 17 until they are turned on or the stop switch 55 is pressed (steps # 107 to # 111). Although not described in detail in the flowchart, at the time of ascending, as described above, when one of the left and right upper limit switches 41, 41 corresponding to the left and right elevating frames 4, 4 reaches the ON state, the timing is increased. The drive of the lift motor 17 corresponding to the upper limit switch 41 is stopped, and the other lift motor 17 is stopped.
Is stopped at the timing when the corresponding upper limit switch 41 reaches the ON state.

This "installation" mode is for the loading platform 1 of the truck 1.
A is used when the loading device is mounted on A, and when the device is lowered from the loading platform 1A of the truck 1, and when the loading device is mounted on the loading platform 1A of the truck 1, FIG. As shown in FIG. 15 (a), a total of four auxiliary struts 61 # are arranged two at each of the front and rear positions on the outside of the apparatus, or a caster 60 detachably provided on the lower surface of the frame 2 is used. The device is moved between the auxiliary columns 61 installed in advance, and the lift switch 53 is set to “device down”.
With the left and right elevating frames 4 and 4 raised to the upper limit by operating the up / down switch 56 after setting to the position, the assist is provided so as to be positioned below the left and right elevating frames 4 and 4 as shown in FIG. The arm portion 62 is attached to the support column 61, and thereafter, the lift switch 53 is set to the “apparatus up” position, and the left and right lifting frames 4 are operated by operating the up / down switch 56.
15 is lowered to the lower limit, as shown in FIG. 15 (b), the arm portion 62 contacts the lower surface (an example of a contact portion) of the lifting frame 4, 4 and the frame 2 of the apparatus is moved to the lifting frame 4 Can be lifted off the ground by an amount substantially corresponding to the lifting stroke.

When the bottom surface of the apparatus cannot be lifted to a position higher than the height of the bed 1A of the truck 1 by this one lift operation, as shown in FIG. The supporting arm 61 is further attached to the auxiliary support column 61 so as to be located below the left and right sides, and the lift switch 53 is set to the “device lowering” position, and the left / right lifting frame 4 is operated by operating the up / down switch 56. , 4 are slightly raised to bring the lower surface of the frame 2 into contact with the holding arm 63, and then the lift switch 53 is set to the “device lowering” position to raise / lower.
By operating the lowering switch 56, the left and right elevating frames 4, 4 are raised to the upper limit, and the arm portion is located above the above-mentioned position so as to be located below the lower surface of the elevating frames 4, 4 thus raised. After changing the mounting position of 62, the lift switch 53 is set to the "apparatus up" position and the left and right lifting frames 4, 4 are lowered to the lower limit by operating the up / down switch 56, as described above. As shown in FIG. 16D), the apparatus can be lifted to a high level, and in this state, the truck 1 can be moved backward and mounted on the carrier 1A. When the apparatus is to be unloaded from the loading bed 1A of the truck 1, the operation is performed in the reverse order, and a hole-shaped attaching / detaching portion 2C is provided on the lower surface of the frame 2 so that the caster 60 can be detachably attached. Is formed.

When the control mode switch 51 is set to the "load-in" position, the state of the lift switch 53 is determined as shown in the flowchart of FIG. If it has been set (step # 201), the up / down switch 56
The left and right elevating motors 17, 17 are driven to the side that raises the left and right elevating frames 4, 4 by the push operation, and the elevating motors are driven until 120 seconds elapse from the start of the ascent or the stop switch 55 is pressed. 17,1
The control to continue the driving of No. 7 is performed (# 202 to # 206 steps). After the lifting of the lifting frames 4 and 4 is stopped in this way, the left and right lifting motors 17 and 17 are driven to the side that raises the left and right lifting frames 4 and 4 by pressing the lifting / lowering switch 56 again. The control to drive the elevating motors 17, 17 is performed until the left and right upper limit switches 41, 41 are turned on or the stop switch 55 is pressed (#).
207 to # 211 steps). Although not described in detail in the flow chart, the left and right upper limit switches 41, 4 corresponding to the left and right lifting frames 4, 4, at the time of the ascent, are described.
At the timing when one of the motors 1 reaches the ON state, the drive of the lift motor 17 corresponding to the upper limit switch 41 is stopped, and the other lift motor 17 is switched to the corresponding upper limit switch 41.
Is stopped at the timing when the switch reaches the ON state.

When the lift switch 53 is set to the "shelf lowering" position (step # 201), only when the left and right upper limit switches 41, 41 are ON, the up / down switch 56 is turned on. The left and right elevating motors 17, 17 are driven to lower the left and right elevating frames 4, 4 by a push operation, and the transport level switch 4
Control is continued to drive the elevating motors 17, 17 until the switches 3, 43 reach the ON state or the stop switch 55 is pressed (steps # 212 to # 217). Although not described in detail in the flowchart, at the time of the lowering, the left and right transport level switches 43, 4 corresponding to the left and right elevating frames 4, 4, as described above.
The drive of the lifting / lowering motor 17 corresponding to the transport level switch 43 is stopped at the timing when one of the three reaches the ON state, and the driving of the other lifting / lowering motor 17 is driven at the timing when the corresponding transport level switch 43 reaches the ON state. Has been stopped.

This “load-in” mode is a preliminary operation when an operation of artificially inserting the seedling raising box 3 into the shelf member 5 is performed.
When the ascent operation is performed for 0 second, the upper part 2 of the shelf member 5
When the step reaches a state where it is lifted upward, the seedling raising box 3 is inserted into the shelf-like members 5 and 5 from the rear side, and the seedling raising box 3 is inserted into these shelf-like members 5. When the operation is completed, a space is formed above the remaining three shelves 5 by further operating the up / down switch 56. By being inserted in the housed state, the nursery box 3 can be stored in all the shelf members 5 #.

Further, after the seedling raising boxes 3 have been inserted into all the shelf-shaped members 5 as described above, the lift switch 53 is operated to the "shelf lowering" position, and then the up / down switch 56 is operated.
By pressing, the nursery box 3 of the lowermost shelf-like member 5 is pressed.
Is placed on the endless belts 23, 23 on the transport mechanism B to avoid the phenomenon in which the weight of the seedling raising box 3 of the lowermost shelf-shaped member 5 acts on the lifting drive system, and at the same time, 5 is suppressed.

When the control mode switch 51 is set to the "payout" position, as shown in the flowchart of FIG. 19, the state of the right end switch 45 and the left end switch 44 is determined (steps # 301 and # 302). ), If the right end switch 45 is ON, the up / down switch 56
, The right elevating motor 17 is driven to lower the right elevating frame 4, and the right transport level switch 43 is turned on or the elevating motor 17 is driven until the stop switch 55 is pressed. Is controlled (steps # 303 to # 307), and
When the left end switch 44 is in the ON state, the left elevating motor 17 is driven to the side that lowers the left elevating frame 4 by pressing the up / down switch 56, and
Control is performed to drive the elevating motor 17 until the left transport level switch 43 is turned on or the stop switch 55 is pressed (# 308 to # 312 steps), and both the right end switch 45 and the left end switch 44 are turned off.
In the F state, the above control is not performed.

This "dispensing" mode is used when carrying out the operation of sending out the seedling raising box 3 of the shelf-like member 5 to the ridge. The position of the payout mechanism C is set at the rear of the seedling storage section A where the seedlings are to be sent out. Position, the transport end is set to an oblique posture in which the transport end contacts the ground, and the transport motor 25 of the transport mechanism B and the payout mechanism C
By simply pushing the up / down switch 56 while driving the truck 1 at low speed by driving the payout motor 32, the seedling raising boxes 3 are sent out in parallel on the upper surface of the ridge G as shown in FIG. Has become. When the nursery box 3 is sent out to the upper surface of the ridge G in this manner,
The mating seedling W of the seedling raising box 3 is in a posture orthogonal to the longitudinal direction of the seedling raising box 3, and is supplied directly to the seedling placing stand 65A of the rice transplanter 65 or to the spare seedling placing stand 65B. Also, the mat-shaped seedlings W can be transferred in the same posture.

When the control mode switch is set to the "emergency" position, as shown in the flowchart of FIG. 20, the state of the seedling switch 54 is determined, and the seedling switch 54 is set to the "right" position. If it is (# 401 step), the right elevating motor 1 is moved to the side that raises the right elevating frame 4 by pressing the up / down switch 56.
7 and the control to drive the elevating motor 17 until the right upper limit switch 41 is turned on or the stop switch 55 is pressed (# 402).
~ # 406 step), on the contrary, the seedling switch 54
Is set to the "left" position (step # 401), the left elevating motor 1 is moved to the side that raises the left elevating frame 4 by pressing the up / down switch 56.
7 and controls to drive the elevating motor 17 until the left upper limit switch 41 is turned on or the stop switch 55 is pressed (steps # 407 to # 411). .

The "emergency" mode is used when an ascending control is required, such as when a foreign object is caught in the lower part of the shelf member 5, and the up / down movement of the side selected by the seedling switch 54 is performed. The frame 4 can be raised as needed at an arbitrary timing.

When the control mode switch 51 is set to the "transport" position, as shown in the flowchart of FIG. 21, the state of the right end switch 45 and the left end switch 44 is determined (steps # 501 and # 502). If the right end switch 45 is ON, the right transport motor 25 and the payout motor 32 are driven, and if the stop switch 55 is pressed, the respective motors 25 and 32 are stopped (# 504 to # 504). # 306) If the left end switch 44 is in the ON state, the left transport motor 25 and the payout motor 32 are driven, and when the stop switch 55 is pressed, the respective motors 25 and 32 are stopped. (Steps # 507 to # 509).

In the “transport” mode, the seedling raising box 3 is sent out from the shelf member 5 by driving the transfer mechanism B, and the seedling raising box 3 from the transfer mechanism B is discharged by the drive of the dispensing mechanism C. As described above, the five seedling boxes 3 placed on the shelf member 5 can be sent out at a time by performing control in which the "payout" mode is selected in advance. .

As described above, in the present invention, the ball screw shaft 1
5 is disposed at a position overlapping above the side plate 1S of the loading platform 1A, the raising and lowering frame 4 for raising and lowering the seedling storage section A in a cantilever form, and a plurality of shelf-like members 5 suspended from the raising and lowering frame 4. By adopting the structure having the structure, the lifting system does not have to be arranged at the center position in the left-right direction of the device, and from this configuration, the width of the bed 1A of the light four-wheel truck 1 having a width of 140 cm or less. Although the loading device is configured to have a width that can be loaded into
The seedling boxes 3 can be arranged in two rows in the horizontal direction by setting the longitudinal direction, which is the size of 0 cm, to be horizontal, so that a large number of seedling boxes 3 can be stored.

In particular, the nursery box 3 placed on the shelf member 5 can be continuously delivered to the ridge G by the driving force of the transport motor 25 and the payout motor 32 by rational automatic control. And can reduce the labor of the operator, and can automatically set the interval between the shelf-like members 5 appropriately even when sending the nursery box 3 to the shelf-like member 5 to perform an easy operation. It has become. Also, when the loading device is mounted on the loading platform 1A of the truck 1, an easy operation can be performed by using the driving force of the device without using a forklift or a crane.

[Another Embodiment] The present invention can be configured as follows, for example, in addition to the above-described embodiment. (A) It is also possible to set a control operation to automatically store the nursery box 3 and automatically pay out the nursery box 3. That is, a plurality of switches and a potentiometer (not shown) are provided to determine which of the plurality of shelf members 5 # has reached the transport level of the transport mechanism B with reference to the transport mechanism B, and the transport mechanism is provided. A switch (not shown) for counting the number of seedling boxes 5 present on the shelf member 5 located on B is provided. When automatic storage is performed, a payout mechanism C and a transport mechanism are provided as shown in a flowchart of FIG. Motor 32 with B,
25, the drive of the motors 32 and 25 is stopped when the five seedling raising boxes 3 are sent to the shelf member 5, and the shelf member 5 is raised by one step by the drive of the elevating motor 17. The order of the operation is set so that the control to be performed is performed until the seedling raising box 3 is sent to all the five stages of the shelf members 5 (# 601 to # 605 steps). In this automatic storage control, the nursery box 3 can be supplied to all of the five-tiered shelf members 5 only by continuously and artificially supplying the nursery box 3 to the payout mechanism C. In the case of automatic payout, as shown in the flowchart of FIG. 23, the motors 32 and 25 of the payout mechanism C and the transport mechanism B are operated in normal rotation to feed the seedling raising box 5 and the shelf member 5 is moved. When five seedling boxes 3 are sent out from the
Is stopped and the control to lower the shelf member 5 by one step by the drive of the elevating motor 17 is performed until the seedling raising boxes 3 are sent out from all the five stages of the shelf members 5 (#). 701 to # 705 steps). Then, in this automatic payout control, the nursery box 3 can be automatically sent out to the ridge G in a parallel state with almost no work performed by the operator.

(B) For the purpose of assisting the operation of the elevating frame in the ascending direction, tension type coil springs 66, 66 for applying a force in the direction of lifting the elevating frame 4 can be provided as shown in FIG. It is. In particular, when the urging force of the spring 66 is applied to the inner end of the elevating frame 4 as shown in the drawing, the sagging of the inner end of the elevating frame 4 is also suppressed. In the present invention, a gas spring can be used instead of the coil spring.

(C) As the flexible member, a flexible bending wire, a chain that can be bent at many positions, or a slide member that can be bent and stretched is used. In place of the ball screw shaft and the ball nut, a wire that operates in the vertical direction,
The operation mechanism is composed of a chain wound around a sprocket oriented in the horizontal axis.

[Brief description of the drawings]

FIG. 1 is a side view of a loading device mounted on a truck.

FIG. 2 is a plan view showing a form in which a nursery box is sent out to a ridge.

FIG. 3 is a longitudinal rear view of the loading device.

FIG. 4 is a rear view of the dispensing mechanism set in a vertical position.

FIG. 5 is a rear view of the state in which the dispensing mechanism is set at the right end.

FIG. 6 is a side view showing a posture of a payout mechanism.

FIG. 7 is a perspective view showing the structure of a lifting frame, a shelf member, and a transport mechanism.

FIG. 8 is a rear view showing a lowering state of the elevating frame and the shelf member.

FIG. 9 is a rear view showing an ascending / descending frame and a rising state of the shelf member;

FIG. 10 is a side view showing an ascending / descending frame and a rising state of a shelf-like member.

FIG. 11 is a side view showing a lowering state of the elevating frame and the shelf member.

FIG. 12 is a vertical sectional side view in a state where a lifting frame and a shelf-like member are raised.

FIG. 13 is a side view of the control box.

FIG. 14 is a block circuit diagram of a control system.

FIG. 15 is a diagram showing a procedure of a lifting operation of the loading device using the auxiliary columns.

FIG. 16 is a diagram showing a procedure of an operation of further raising the loading device by using the auxiliary columns.

FIG. 17 is a flowchart of an installation routine.

FIG. 18 is a flowchart of a carry-in routine.

FIG. 19 is a flowchart of a payout routine.

FIG. 20 is a flowchart of an emergency routine.

FIG. 21 is a flowchart of a transport routine.

FIG. 22 is a flowchart of an automatic storage routine according to another embodiment.

FIG. 23 is a flowchart of an automatic payout routine according to another embodiment.

FIG. 24 is a sectional view of an apparatus according to another embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 track 1S carrier 2 frame 2C detachable part 2P column member 3 carrier 4 elevating frame 5 shelf member 5H opening 15 screw shaft 16 nut member 17 actuator 43 sensor 58 control device 60 caster 61 auxiliary column 62 arm unit 63 holding arm unit A seedling storage section B transport mechanism C payout mechanism

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Choji Teramoto 64 Ishizukitamachi, Sakai City, Osaka Prefecture Inside Kubota Sakai Works (72) Inventor Akio Kashii 64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Sakai Co., Ltd. Inside the factory (72) Inventor Nobuyuki Kubo 2-2-27 Mizuhashi, Higashiosaka-shi, Osaka Daiwa Seiko Co., Ltd. (72) Inventor Yoshinori Kimura 2-2-27 Mizuhashi, Higashiosaka-shi, Osaka Daiwa Seiko Co., Ltd. Inside

Claims (16)

[Claims] 1. A multi-stage shelf member for placing and supporting a seedling carrier on a frame is provided so as to be able to move up and down, and the seedling carrier placed and supported on the shelf member is sent to an end position of the frame. A seedling loading device for a rice transplanter comprising a transport mechanism and a conveyor-type dispensing mechanism for sequentially feeding seedling carriers from the transport mechanism to the outside of the frame, and reciprocates in a vertical direction by a driving force from an actuator. Operating mechanism from the operating mechanism acting on one side portion of the rack, the lifting frame to be raised and lowered with respect to the frame, the plurality of shelves in a suspended state with respect to the lifting frame Loading device for rice transplanter seedlings that supports the shape member. 2. A screw shaft in a vertical position, wherein the operation mechanism is supported so as not to be vertically movable with respect to the frame, and is rotated by a driving force from the actuator.
The seedling loading device for a rice transplanter according to claim 1, comprising a nut member screwed to the screw shaft, and the nut member and a side portion of the lifting frame are connected. 3. A laterally arranged pair of seedling storage sections each including the lifting frame and a plurality of shelf-shaped members suspended and supported by the lifting frame, and the screw shaft is disposed outside the seedling storage sections. 3. The apparatus for loading seedlings for a rice transplanter according to claim 2, wherein: 4. The seedling for a rice transplanter according to claim 2, wherein said loading device is mounted on a truck, and said screw shaft is arranged at a position overlapping above a side plate of said truck carrier in plan view. Loading device. 5. A seedling storage section comprising said elevating frame and a plurality of shelf-shaped members suspended from and supported by said frame, and said seedling storage sections are arranged side by side in a horizontal direction. The seedling loading device for a rice transplanter according to claim 1, wherein each of the lifting frames is independently movable up and down by being provided. 6. In a state where the loading device is mounted on a truck, the dispensing mechanism is configured to cover the inclined position where the lower end of the conveyance is grounded and the surface on the side where the seedling carrier is fed out from the shelf member. The seedling loading device for a rice transplanter according to claim 1, wherein the transport end is configured to be switchable between a vertically oriented posture facing upward. 7. A seedling storage section comprising said raising and lowering frame and a plurality of shelf-shaped members suspended from and supported by said frame, said seedling carrier being provided from one seedling storage section by said dispensing mechanism. 7. The seedling loading device for a rice transplanter according to claim 6, wherein the feeding mechanism is formed to have a width to feed the seedlings, and the dispensing mechanism is configured to be capable of changing its position by moving the seedling storage section in the juxtaposition direction. 8. The column-shaped member provided in the frame body and having a vertically-oriented posture is also used as a guide member for preventing the displacement in the horizontal direction while allowing the lifting frame and the shelf-shaped member to move up and down. Item 8. The seedling loading device for a rice transplanter according to any one of Items 1 to 7. 9. A member which suspends and supports the shelf-like member with respect to the elevating frame, such as a link member which bends or expands or contracts, a wire which bends flexibly, or a chain. 2. A seedling loading device for a rice transplanter according to claim 1, wherein said vertical member comprises a flexible member which keeps a vertical interval between said members and allows said shelves to overlap each other when said elevating frame is lowered. 10. An opening through which the transport mechanism can be inserted vertically in a bottom portion of the shelf-like member, and is supported by the shelf-like member by the transport mechanism inserted through the opening by setting the height of the shelf-like member. And a sensor for detecting that the shelf-shaped member is at a height at which the seedling carrier can be sent out by the transfer mechanism. 2. The seedling loading device for a rice transplanter according to claim 1, further comprising a control device for stopping the lowering operation of the lifting frame when the sensor reaches a detection state. 11. The transport mechanism and the dispensing mechanism are configured to apply a transport force in the delivery direction to the seedling carrier by a driving force, and set the operation of the control device to control each of them simultaneously. An apparatus for loading seedlings for a rice transplanter according to claim 10. 12. The dispensing mechanism and the transport mechanism are provided with a conveyer that can be rotated forward and backward. When storing the seedling carrier, the seedling carrier from the dispensing mechanism is conveyed by the conveyor of the dispensing mechanism and the conveyor of the transport mechanism. At the time when the predetermined number of seedling carriers have been fed into the shelf-like member and the feeding of the predetermined number of seedling carriers to the shelf-like member is completed, a control mode of automatic storage is set so that the shelf-like member is raised, and the opposite operation is performed. The seedling loading device for a rice transplanter according to claim 1, further comprising a control device in which an automatic payout control mode is set so as to send out the seedling carrier from the plant through a payout mechanism. 13. The rice seedling loading device for a rice transplanter according to claim 12, further comprising a potentiometer for continuously measuring the height of the lifting frame. 14. The apparatus for loading seedlings for a rice transplanter according to claim 1, wherein a caster attaching / detaching portion is formed at the bottom of the frame. 15. In a state where the frame body is in contact with the ground, the frame body is raised by receiving a lowering operation force of the lifting frame.
The seedling loading device for a rice transplanter according to claim 1, wherein an abutment portion for an arm portion of the auxiliary support standing on the ground is formed on a lower surface of the lifting frame. 16. An abutment portion for a holding arm portion, which is capable of retreating from the auxiliary support to the frame body side, is formed on a lower surface of the frame body so as to hold the frame body in a raised state when the frame body is raised. 16. The apparatus for loading seedlings for rice transplanters according to claim 15, wherein: