JP4809938B2 - Seedling box press - Google Patents

Description

  The present invention relates to an agricultural machine that presses seedling boxes arranged in a seedling facility from above.

As a method of raising seedlings such as paddy rice and vegetables, it is known to grow seedlings side by side so that a seedling box is spread in a seedling facility such as a nursery house. Then, in raising seedlings in the seedling boxes arranged in the seedling facility, the seedlings extend the roots of the seedlings to the floor under the seedling box (in the soil of the seedling facility) and the seedlings absorb the nutrients in the seedling floor. In order to grow well, press the seedling boxes arranged with a seedling box pressing machine from the top so that the seedling box and the placement floor are in close contact so that the seedling roots can be smoothly extended into the placement bed during seedling growth There is something that was made.
JP 2002-136225 A

  According to the above prior art, the work of pressing the seedling boxes arranged in the nursery facility can be performed by a machine, and the work labor is reduced. However, the work process is to first move the pressing plate and then advance the traveling unit, then lower the pressing plate until it touches the seedling box, and then move the laterally moving body. The work process of pressing the seedling box had to be repeated, and the work efficiency was not very good.

First aspect of the present invention, the running wheels (3) (4) Naebako side to side (a) suppression roller (6) for pressing from above each provided for, driving the suppression roller (6) A motor (12) is provided on each of the left and right sides, and an interchangeable support mechanism (A) is provided for supporting the frame (8) to which the pressure reducing roller (6) is attached with the movement in the left and right directions relative to the traveling wheels (3) and (4) . Left and right movement detecting means for detecting the movement of the frame (8) in the left-right direction with respect to the traveling wheels (3) and (4 ) by the accommodation support mechanism (A) is provided, and the frame for the traveling wheels (3) and (4) is provided. (8) the desired lateral position and so as to the control device for controlling driving of the left and right motor (12) based on detection of horizontal movement detecting means (61) provided Rutotomoni, that aircraft has traveled to a predetermined position Detecting traveling position detecting means and left and right Is obtained by the seedling box pushers, characterized in that a drive stop means for stopping the driving of the left and right crush roller (6) by detection of regardless traveling position detecting means for detection of movement detecting means.

Accordingly, the left and right pressure reducing rollers (6) are respectively driven and rotated by the prime mover (12) , and proceed while pressing the seedling boxes (a) arranged on the left and right of the traveling wheels (3, 4) while pressing the seedling boxes. Work can be done easily with good workability. Further, when the traveling speed of the left and right pressure reducing rollers (6) is different and the entire left and right pressure reducing rollers (6) are inclined, the frame (8) to which the pressure reducing rollers (6) are attached is moved to the traveling wheels (3, 4). interchange support mechanism for supporting and flexible movement of the lateral direction (a) is provided for, to detect the movement of the left and right direction of the frame (8) for melting through the support mechanism (a) according to the running wheels (3, 4) A control device provided with left / right movement detection means and drivingly controls the left / right motor (12) based on the detection of the left / right movement detection means so that the frame (8) is in a desired left / right position with respect to the traveling wheels (3, 4) . Since (61) is provided, the advancing posture of the left and right pressure-reducing rollers (6) can be controlled appropriately and a good seedling box pressing operation can be performed with a simple configuration. Further, when the machine body is pressed to the seedling box and travels to a predetermined position, the travel position detecting means automatically detects the position and preferentially stops the driving of the left and right pressure reducing rollers (6). The aircraft stops moving. Therefore, even if the operator does not stop the aircraft, the aircraft automatically stops at a predetermined position, so that workability is good.

According to the second aspect of the present invention, the traveling wheels (3) and (4), the interchangeable support mechanism (A), and the left and right movement detection means are provided on the front and rear sides of the airframe, respectively, and based on the detection of the left and right movement detection means on the airframe traveling direction side. The seedling box pressing machine according to claim 1, further comprising a control means (61) for driving and controlling the left and right prime mover (12) .

Therefore, in addition to the operation of the first aspect of the invention, for example, in the seedling box pressing operation in the forward movement of the machine body, the left and right prime movers ( 12) is driven and controlled so that the advancing posture of the left and right pressure-reducing rollers (6) at the time of forward movement can be properly controlled. Since the left and right prime mover (12) is driven and controlled based on the detection of the left and right movement detecting means, the advancing posture of the left and right pressure reducing roller (6) can be properly controlled during reverse travel, and a good seedling box pressing operation regardless of the traveling direction Can be done .

According to a third aspect of the present invention, when it is detected that the vehicle body (23) is tilted by the detection of the front / rear left / right movement detecting means, the drive of the left / right pressure reducing roller (6) is stopped, and the left / right pressure reducing roller is manually operated. The structure according to claim 1 or 2, wherein a stop lever (40) for stopping the drive of the left and right pressure reducing rollers (6) is provided so as to be operable with a foot while being configured to drive (6). This is a seedling box press.

Therefore, in addition to the operation of the invention described in claim 1 or 2, when it is detected that the vehicle body (23) is tilted by the detection of the front-rear left-right movement detection means, the left-right pressure reducing roller (6) is driven. Since the aircraft is stopped by stopping it, it is possible to prevent the wheel from coming off. After the aircraft is stopped, the aircraft can be corrected by driving the left and right pressure reducing rollers (6) by manual operation. In addition, when the operator determines that the aircraft is in an abnormal state and cannot be properly suppressed during forward pressure reduction work, the left and right pressure reduction rollers are operated by operating the stop lever (40) with the foot. The driving of (6) can be stopped to stop the aircraft .

According to the present invention, the left and right pressure reducing rollers 6 are each driven and rotated by the prime mover 12 to advance in a proper posture while pressing on the seedling boxes a arranged on the left and right of the traveling wheels 3 and 4 to press the seedling box. Work can be done efficiently and easily.

An embodiment of the present invention will be described with reference to the drawings.
Reference numeral 1 denotes a seedling box pressing machine 1, which includes a traveling unit 5 including four traveling wheels 3, 4 in total, front and rear, traveling on two traveling rails 2 laid in parallel on the ground in the nursery house. And a pressure-reducing body 7 provided with five pressure-reducing rollers 6 on the left and right sides of the traveling unit 5, respectively.

First, the structure of the suppression body 7 will be described in detail. In addition, since the left and right suppression body 7 has a left-right symmetric configuration with the traveling portion 5 as the center, the right suppression body 7 will be described.
Reference numeral 8 denotes a rectangular frame frame that is horizontally long in a plan view, and has a frame frame configuration in which a midway portion is reinforced by five vertical frames 9a and two L-shaped horizontal frames 9b.

Reference numeral 6 denotes a cylindrical pressure reducing roller which is rotatably supported in the frame frame 8 by five. And the driven sprocket 11 fixed to the spindle of each pressure reduction roller 6 is each provided in the support part vicinity of an outer side edge part.

Also, two crush roller 6 of the front and rear ends, rather than three crush roller 6 of the central portion, the lower end position is arranged to be 6mm upper position, ground suppression body 7 in seedling House When advancing while suppressing the seedling box placed on the seedling box, the pressing roller 6 does not get caught on the seedling box and rolls on the seedling box one after another.

  An electric motor 12 is fixed on the outer end of the frame frame 8, and a drive chain 14 is wound around the drive sprocket 13 and the five driven sprockets 11. Reference numeral 15 denotes idler sprockets (idling sprockets), each of which is provided between each driven sprocket 11 and two above the frame frame 8, for a total of six.

Reference numeral 16 denotes an intermediate receiving roller made of a bearing, which is supported by a vertical frame 9 provided at the left and right center of the frame frame 8 so as to be freely rotatable. The intermediate receiving roller 16 are provided two at a time on the upper side of the horizontal center portion of the crush rollers 6, longer crush roller 6 to the right and left is prevented from bending down.

  Four iron weights 17 are installed between the two L-shaped horizontal frames 9b of the frame frame 8, and the suppressor 7 is properly placed on the seedling box placed on the ground in the nursery house. It is set to a weight that can be suppressed. The weight 17 is provided with two U-shaped grips 18 so that an operator can easily hold the grips 18 and place them on the frame frame 8 or remove them. Yes.

Reference numeral 19 denotes a connecting arm configured in a U-shape in plan view, and the base of two front and rear arms 19a is pivotally supported on the frame frame 8, and the connecting rod 19b is pivotally supported on the tip thereof. Yes.
Next, the configuration of the traveling unit 5 will be described in detail.

Is configured the vehicle body 23 and a frame 21 after providing the lateral direction of the through groove in the lower surface of the front frame 20 and square tube which on the lower surface of the rectangular tube provided with a lateral direction of the through groove fixedly connected to the left and right connection frames 22 Yes. Then, two bolt shafts 26 each having a bearing 25 rotatably supported on an axle 24 on which the left and right front wheels 3 are rotatably supported are fixed by nuts 27, respectively. Two bearings 25 are provided in the space in the front frame 20 in a state of passing through the through-grooves of the front frame 20, and the bearings are mounted on the upper portion of the axle 25 on which the left and right rear wheels 4 are rotatably supported. The two bolt shafts 26 that rotatably support the shaft 25 are fixed by the nuts 27, and the two bolts 26 are passed through the through-grooves of the rear frame 21, and the two bearings 25 are moved backward. The traveling portion 5 is configured by providing a space in the frame 21 with play. Therefore, the vehicle body 23 is configured to be tiltable to the left and right with respect to the front and rear axles 24 and 25.

  The support mechanism with play of the front frame 20 with respect to the axle 24 of the left and right front wheels 3 and the support mechanism with play of the rear frame 21 with respect to the axle 25 of the left and right rear wheels 4 constitute an interchangeable support mechanism A.

LS1, LS2, and LS3 are limit switches provided on the vehicle body 23, and the switch levers L1, L2, and L3 are provided forward. On the other hand, a bolt shaft provided by fixing a concave switch lever operating body 30 on the upper side of the axle 24 of the left and right front wheels 3 is fixed with a nut , and a switch lever L2 is arranged at the center position of the concave portion of the switch lever operating body 30. The switch levers L1 and L3 are arranged near the left and right side portions of the switch lever operating body 30.

  Therefore, when the vehicle body 23 is tilted to the right with respect to the left and right front wheels 3 that roll on the travel rail 2 in the forward operation, the switch lever L1 is pushed on the left side surface of the switch lever operating body 30. The limit switch LS1 is turned on. On the contrary, when the vehicle body 23 is tilted from the left with respect to the left and right front wheels 3 rolling on the travel rail 2, the switch lever L3 is pushed on the right side surface of the switch lever operating body 30, and the limit switch is pressed. LS3 is turned on. The switch lever L2 is in a state of being idle in the recess of the switch lever operating body 30 while the tilt amount is small. However, when the tilt amount is large, the switch lever L2 is pushed by the inner surface of the recess of the switch lever operating body 30 and the limit switch. LS2 is turned on.

  Limit switches LS5, LS6, and LS7 having switch levers L5, L6, and L7 having the same configuration and a switch lever operating body 30 are also provided at the rear portion of the vehicle body 23. When the vehicle body 23 is tilted from the left with respect to the rolling left and right rear wheels 4, the switch lever L7 is pushed on the right side surface of the switch lever operating body 30, and the limit switch LS7 is turned on. On the contrary, when the vehicle body 23 is tilted to the right with respect to the left and right rear wheels 4 rolling on the travel rail 2, the switch lever L5 is pushed on the left side surface of the switch lever operating body 30 and the limit is reached. The switch LS5 is turned on. When the tilt amount is small, the switch lever L6 is idle in the recess of the switch lever operating body 30, but when the tilt amount is large, the switch lever L6 is pushed by the inner surface of the recess of the switch lever operating body 30 and the limit switch. LS6 is turned on.

Reference numeral 40 denotes a stop lever. When the operator steps on the stop lever 40 with his / her foot, the limit switch LS8 is turned ON.
Reference numeral 41 denotes a reverse lever. When an operator steps on the reverse lever 41 with his / her foot, the limit switch LS4 is turned ON.

  Reference numeral 50 denotes a left and right connecting arm receiver, the base of which is fixed to the left and right connecting frame 22 of the vehicle body 23, and the connecting rod 19b of each connecting arm 19 of the left and right pressure-reducing body 7 is hooked on each hook. The left and right suppression body 7 is connected to the vehicle body 23 of the traveling unit 5.

  Reference numeral 60 denotes a battery, and 61 denotes a control device. On the upper surface of the control device 61, an ON switch SW1 and an OFF switch SW2 for automatic traveling, a right electric motor forward switch SW3 and right electric motor reverse switch SW4 for manual traveling, and a left electric motor forward for manual traveling are provided. A switch SW5 and a left electric motor reverse switch SW6 are provided.

  Here, based on the operation | work which presses what is called the cell pot seedling box a isolate | separated for every stock arranged in the nursery house from the upper direction with the seedling box pressing machine 1, the effect | action of the control apparatus 61 of the seedling box pressing machine 1 is demonstrated. .

First, the seedling box pressing machine 1 is put into the nursery house in which the seedling boxes a are arranged, and the left and right front wheels 3 and the left and right rear wheels 4 are placed on the traveling rail 2. Then, the automatic travel ON switch SW1 is pressed. Then, the left and right electric motors 12 rotate forward in the direction B, and the driven sprockets 11 are driven forward in the direction A by the drive sprockets 13 so that the pressure reducing rollers 6 also rotate forward in the direction I. Driven. Therefore, since the left and right suppressors 7 move forward while pressing the seedling boxes a arranged, the traveling unit 5 to which the left and right suppressors 7 are connected also moves forward.

  At this time, the seedling boxes a arranged in the nursery house are not arranged in a uniform state, and the forward speed of the left and right suppressors 7 varies depending on various conditions. If the entire body is slanted or greatly slanted (or the right repressor 7 advances ahead of the left repressor 7) The seedling box pressing machine 1 has a function of returning straight when the entire body is tilted, and a function of stopping the machine body when there is a risk of wheel removal.

  That is, for example, when the left suppressor 7 advances ahead of the right suppressor 7 and is inclined overall, the vehicle body 23 is inclined to the right with respect to the left and right front wheels 3. The switch lever L1 is pushed on the left side surface, and the limit switch LS1 is turned on. The left electric motor 12 is stopped by the control device 61 when the limit switch LS1 is turned on. Then, since the right suppression body 7 is driving forward, the aircraft is in a straight state. When the airframe is in a straight state, the limit switch LS1 is turned OFF, the left electric motor 12 is driven again, and the airframe is advanced by the left and right electric motors 7.

  On the contrary, when the right suppression body 7 advances ahead of the left suppression body 7 and is inclined overall, the vehicle body 23 is tilted to the left with respect to the left and right front wheels 3, so the right side of the switch lever operating body 30 The switch lever L3 is pushed on the surface, and the limit switch LS3 is turned on. When the limit switch LS3 is turned ON, the right electric motor 12 is stopped by the control device 61. Then, since the left suppression body 7 is driving forward, the aircraft is in a straight state. When the airframe is in a straight state, the limit switch LS3 is turned off, the right electric motor 12 is driven again, and the airframe is advanced by the left and right electric motors 7.

  Further, when the vehicle body 23 is greatly inclined with respect to the left and right front wheels 3, the switch lever L2 is pushed by the inner surface of the concave portion of the switch lever operating body 30, and the limit switch LS2 is turned on. Then, both the left and right electric motors 12 are stopped by the control device 61 and the airframe is stopped. Therefore, it is possible to prevent the wheel from coming off.

  After stopping the airframe, manually operate the right electric motor forward switch SW3, the right electric motor reverse switch SW4, the left electric motor forward switch SW5 for manual driving, or the left electric motor reverse switch SW6 to manually move the left and right The electric motor 12 is driven to correct the airframe. Alternatively, the operator may lift the aircraft and correct it straight.

  In addition, when the operator determines that the aircraft is in an abnormal state and cannot be properly suppressed during forward pressure reduction work, when the operator steps on the stop lever 40 with his / her foot, the limit switch LS8 is When the limit switch LS8 is turned ON, both the left and right electric motors 12 are stopped by the control device 61, and the airframe can be stopped.

The limit switch LS1, the limit switch LS2, the limit switch LS3, and the switch lever actuating body 30 constitute a forward side lateral movement detecting means . Further, the control device 61 ignores the limit switch LS5, the limit switch LS6, and the limit switch LS7 when the aircraft is moving forward.

In addition, if a pile that comes into contact with the stop lever 40 and the reverse lever 41 is provided at the center position of the both ends of the left and right traveling rails 2, when the aircraft reaches the other end of the traveling rail 2 by forward pressure reduction work, The reverse lever 41 is pressed against the pile and the limit switch LS4 is turned on. When the limit switch LS4 is turned ON, both the left and right electric motors 12 are reversely rotated in the reverse direction by the control device 61, and each driven sprocket 11 is reversely driven in the reverse direction by the drive sprocket 13 via the drive chain 14. Thus, each pressure reducing roller 6 is also driven to rotate in the reverse direction. Therefore, since the left and right pressure-reducing bodies 7 move backward while pressing on the seedling boxes a that are arranged, the traveling unit 5 to which the left and right pressure-reducing bodies 7 are connected also moves backward to perform the pressure reduction work in the reverse direction.

  At the time of pressure reduction work in the reverse direction, the control device 61 is ignored even if the limit switch LS1, the limit switch LS2, and the limit switch LS3 are turned on. The driving and stopping of the left and right electric motors 12 are controlled.

  That is, in the reverse suppression work as well as the forward suppression operation, the left suppression body 7 advances ahead of the right suppression body 7 (or the right suppression body 7 advances further than the left suppression body 7. ) Although the seedling box pressing machine 1 has a function of returning straight when the entire body is tilted, and the body when there is a risk of wheel-removal, there is a possibility that it will be removed when the whole is inclined or greatly inclined. There is a function to stop.

  For example, when the left suppressor 7 advances ahead of the right suppressor 7 during reverse travel, and the whole is inclined, the switch lever L5 is pushed on the left side surface of the switch lever operating body 30, and the limit switch LS5 is turned ON. When the limit switch LS5 is turned on, the control device 61 stops the left electric motor 12. Then, since the right suppression body 7 is driving forward, the aircraft is in a straight state. When the airframe is in a straight state, the limit switch LS5 is turned off, the left electric motor 12 is driven again, and the airframe moves forward with the left and right electric motors 7.

  On the contrary, when the right suppression body 7 advances ahead of the left suppression body 7 and the whole becomes oblique, the switch lever L7 is pushed on the right side surface of the switch lever operating body 30, and the limit switch LS7 is turned ON. When the limit switch LS7 is turned on, the control device 61 stops the right electric motor 12. Then, since the left suppression body 7 is driving forward, the aircraft is in a straight state. When the airframe is in a straight state, the limit switch LS7 is turned off, the right electric motor 12 is driven again, and the airframe is advanced by the left and right electric motors 7.

  Further, when the vehicle body 23 is greatly inclined with respect to the left and right front wheels 3, the switch lever L6 is pushed by the inner surface of the concave portion of the switch lever operating body 30, and the limit switch LS6 is turned on. Then, both the left and right electric motors 12 are stopped by the control device 61 and the airframe is stopped. Therefore, it is possible to prevent the wheel from coming off.

The limit switch LS5, the limit switch LS6, the limit switch LS7, and the switch lever operating body 30 constitute a reverse movement detection means on the reverse side.
Then, when the pressure suppression work in the reverse direction is advanced and the airframe reaches the start end of the traveling rail 2, the stop lever 40 is pressed against the pile and the limit switch LS8 is turned on. When the limit switch LS8 is turned on, both the left and right electric motors 12 are stopped by the drive stopping means of the control device 61, and the body is stopped. In addition, the traveling position detection means is comprised by the pile provided in the starting end part of this right-and-left rail 2, and the lever 40 for a stop.

In this way, the so-called cell pot seedling box a separated for each strain arranged in the nursery house can be pressed (pressed) from above with the seedling box pressing machine 1.
In addition, before arranging the seedling boxes a in the nursery house, if a root cutting net is laid on the ground in advance, when the seedling box a is peeled off from the ground after the seedling has grown, the bottom of the seedling box a enters the soil. The extended root can be easily cut, and the seedling box a can be taken out easily.

  Moreover, although said embodiment demonstrated the press of a cell pot seedling box, it is the same also when pressing a rectangular shallow box-shaped seedling box (rice seedling box which grows mat seedlings).

It is a whole top view showing a seedling box press. It is a partially expanded plan view which shows a seedling box press. It is a partially expanded front view which shows a seedling box press. It is a simplified side view of the traveling part of the seedling box pressing machine. It is a simplified top view of the right press body of a seedling box press. It is a simplified side view from the front-end | tip part side of the right press body of a seedling box press. It is a simplified side view from the base end part side of the right press body of a seedling box press. It is S1-S1 sectional drawing of FIG. It is a principal part front view of the running part of a seedling box press. It is a top view for an operation explanation of a run part of a seedling box press. It is a top view of the control apparatus of a seedling box press.

1 Seedling box press 3 Traveling wheels (front left and right wheels)
4 traveling wheels (left and right rear wheels)
5 Running section 8 frame
6 Suppression roller 12 Motor (electric motor)
61 Controller A interchange support mechanism a seedling box

Claims (3)

A pressure reducing roller (6) for pressing the seedling box (a) from above is provided on the left and right of the traveling wheels (3) and (4), and a prime mover (12) for driving the pressure reducing roller (6) is provided on each of the left and right sides. At the same time, an interchangeable support mechanism (A) for supporting the frame (8) to which the pressure reducing roller (6) is attached in a lateral direction relative to the traveling wheels (3) and (4) is provided, and the interchangeable support mechanism (A ) Is provided with left / right movement detecting means for detecting the left / right movement of the frame (8) relative to the traveling wheels (3) / (4), and the frame (8) is located at a desired left / right position with respect to the traveling wheels (3) / (4). a traveling position detecting means for detecting that the control device is provided (61) Rutotomoni for driving and controlling the left and right motor (12), the aircraft has traveled to a predetermined position based on the detection of the horizontal movement detecting means so that, The detection of the left / right movement detection means Without running position seedling box pushers, characterized in that a drive stop means for stopping the driving of the left and right crush rollers by detecting the detection means (6). The traveling wheels (3) and (4), the interchange support mechanism (A), and the left and right movement detection means are provided on the front and rear sides of the aircraft, respectively, and the left and right prime mover (12) is driven and controlled based on the detection of the left and right movement detection means on the aircraft traveling direction side. The seedling box pressing machine according to claim 1, further comprising a control means (61) for controlling the seedling box. When it is detected that the vehicle body (23) is tilted by the detection of the front / rear left / right movement detection means, the driving of the left / right pressure reducing roller (6) is stopped, and the left / right pressure reducing roller (6) can be driven manually. The seedling box pressing machine according to claim 1 or 2, wherein a stop lever (40) for stopping the driving of the left and right pressure reducing rollers (6) is provided so as to be operable with a foot .

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