JPH09107801A - Device for pressing bed soil at corner of seedling-raising box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the device for pressing the bed soil at the corner of a seedling- raising box, capable of narrowing a distance between a rear corner-pressing member and a front corner-pressing member on the pressing of the seedling-raising box to also press the front wall corner of the forefront seedling-raising box. SOLUTION: An arm 17 used for the rear wall corner of a seedling-raising box and having a rear wall corner-pressing member 21 for pressing the rear wall corner of the seedling-raising box is installed at a place above a transfer carriage for laterally carrying the seedling box. An arm 30 having a front wall corner-pressing member 32 for pressing the front wall corner of the seedling-raising box is also disposed behind the arm 7 for the rear wall corner. An attached shaft 18 and a shaft 31 which are the rotation centers of the arm 7 for the rear wall corner and the arm 30 for the front wall corner, respectively, are arranged so that the distance between the rear wall corner-pressing member 21 and the front wall corner-pressing member 32 is narrower than the thickness of the front wall of the seeding-raising box, when the rear wall corner-pressing member 21 and the front wall corner-pressing member 32 press the corners, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for pressing a floor soil at a corner of a nursery box.

[0002]

2. Description of the Related Art Conventionally, the existence of a publicly known publication is unknown, but a rear wall corner arm in which a lower mounting portion is inclined obliquely rearward by a horizontal mounting shaft above a transfer table for laterally feeding a nursery box, and A rear wall corner pressing body that presses a corner of the rear wall of the nursery box fixed to the lower part of the rear wall corner arm, and the rear wall corner arm has its upward rotation for the rear wall corner. In the one having a rear wall corner pressing device configured to stop at a standby position in which the pressing body does not contact the upper surface of the soil in the nursery box but collides with the front surface of the front wall of the nursery box, the rear wall A front wall corner arm inclined diagonally rearward and having an upper part attached by an axis to the rear part of the corner arm, and a front wall corner provided below the front wall corner arm for pressing the corner of the front wall of the nursery box A front wall corner pressing device having a partial pressing body, the front wall corner arm and the rear wall corner arm, A structure in which the mounting shaft and the shaft, which are rotation centers of the rear wall corner arm and the front wall corner arm, are arranged at the same height in a side view, are connected by a position restricting body having a long hole and a spring. , Is known.

[0003]

The above-mentioned known example has a problem in that the respective arm portions and the arms rotate in parallel.
That is, the distance between the rear wall corner pressing body and the front wall corner pressing body is so large that the corner of the front wall of the first seedling raising box cannot be pressed.
The reason is that the nursery boxes are usually transferred continuously and without gaps, so the rear wall of the preceding nursery box moves in close contact with the front wall of the subsequent nursery box, and therefore the rear wall corner pressure is applied. Since the distance between the body and the front wall corner pressing body matches the thickness of the rear wall and the front wall, in the case of the leading nursery box, there is one front wall and the rear wall corner pressing body and the front wall pressing body. The space between the wall corner pressing bodies is wide and cannot be pressed. Therefore, when pressing, the interval between the rear wall corner pressing body and the front wall corner pressing body is narrowed so that the front wall corner of the leading nursery box can also be pressed.

[0004]

It is an object of the present invention to simplify the construction and improve workability.

[0005]

According to the present invention, a rear wall corner arm 17 in which a lower mounting portion is inclined obliquely rearward by a horizontal mounting shaft 18 is provided above a transfer table 1 for laterally feeding a nursery box 2.
And a rear wall corner pressing body 21 that presses the corner of the rear wall 4 of the seedling raising box 2 provided at the lower portion of the rear wall corner arm 17, and the rear wall corner arm 17 has an upper portion thereof. The rotation is stopped at the standby position where the rear wall corner pressing body 21 does not contact the upper surface of the floor soil in the seedling raising box 2 but collides with the front surface of the front wall 5 of the seedling raising box 2, and the downward rotation is stopped. A rear wall corner pressing device 7 configured to stop when the rear wall corner pressing body 21 is at the maximum pressing position is provided. A front wall having a front wall corner arm 30 attached by a shaft 31 and a front wall corner pressing body 32 provided below the front wall corner arm 30 and pressing a corner portion of the front wall 5 of the seedling raising box 2. The corner pressing device 8 is provided, and the engaging elongated hole 34 of the position regulating body 33 is engaged with the engaging shaft 35 provided on the front wall corner arm 30. Then, the end portion of the position restricting body 33 is fixed to the lower shaft 22 provided on the rear wall corner arm 17, and a spring 36 is provided between the engaging shaft 35 and the lower shaft 22 to narrow the gap. The mounting shaft 18 and the shaft 3 which are the rotation centers of the rear wall corner arm 17 and the front wall corner arm 30.
1 is the rear wall corner pressing body 21 and the front wall corner pressing body 3
2 of the nursery boxes arranged so that the distance between the rear wall corner pressing body 21 and the front wall corner pressing body 32 is narrower than the thickness of the front wall 5 of the nursery box 2. This is a corner floor soil pressing device. According to the present invention, the rear wall corner arm 17 is formed longer than the front wall corner arm 30,
The mounting shaft 18 is located above the shaft 31, and the mounting shaft 18 and the engaging shaft 35 are arranged so that the space between them is smaller than the space between the mounting shaft 18 and the lower shaft 22. This is a device for pressing the soil on the corner of the nursery box. According to the present invention, the rear wall corner pressing body 21 is hung on the lower portion of the rear wall corner arm 17 so as to be rotatable back and forth by the lower mounting shaft 20, and the lower portion is pressed after pressing the corner portion of the rear wall 4. This is a corner floor soil pressing device of a nursery box constructed so as to rotate around the mounting shaft 20 and get over the rear wall 4. According to the present invention, a frame 9 is fixed at a position above the transfer table 1, and a pair of left and right mounting plates 11 are provided on the frame 9 via a link mechanism 12 so as to move up and down with respect to the frame 9. The plate 11 is provided with the rear wall corner arm 17 and the front wall corner arm 30, and the height adjusting dial 14 vertically adjusts the rear wall corner pressing device 7 and the front wall corner pressing device 8 with respect to the frame 9. This is a corner floor soil pressing device of a nursery box freely configured.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings.
1 is a transfer table, 2 is a seedling raising box, and the transfer table 1 transfers the seedling raising box 2 in the direction a. Reference numeral 3 denotes a transfer roll for transferring the nursery box 2. The transfer table 1 is provided with a corner pressing device 6 that presses the floor soil at the corners of the rear wall 4 and the front wall 5 on the rear side in the transfer direction of the nursery box 2. The corner pressing device 6 is composed of a rear wall corner pressing device 7 that presses the corner of the rear wall 4 and a front wall corner pressing device 8 that presses the soil on the corner of the front wall 5. The lower end of the side plate 10 of the frame 9 is fixed to the transfer table 1, and the side plate 1
A pair of left and right mounting plates 11 that move up and down with respect to the frame 9 are respectively mounted between the front upper parts of 0 and 10 via a link mechanism 12, and a height adjusting dial 1 is mounted on a top plate 13 of the frame 9.
4 are screwed together, and the mounting plates 11 are attached to the lower ends of the height adjusting dials 14, respectively. Reference numeral 15 is a pointer, the height of which is adjusted according to a scale (not shown) provided on the side plate 10. The rear wall corner pressing device 7 fixes upper portions of a pair of left and right rear wall corner arms 17 to a mounting shaft 18 in the left-right direction, and the mounting shaft 18 is mounted on the mounting plate 11. An upper portion of a rotating member 19 is rotatably attached to a lower portion of the rear wall corner arm 17 by a lower attachment shaft 20. A rear wall corner pressing body 21 that presses a corner of the rear wall 4 of the seedling raising box 2 having an L-shaped side view is attached to the lower end of the front surface of the rotating member 19 so that the attachment position can be changed up and down.

A lower shaft 22 in the left-right direction is provided on the lower portion of the rotating member 19, a lower end of a spring 23 is locked to the lower shaft 22, and an upper end of the spring 23 is provided on the rear wall corner arm 17. Locked by the pin 24, the spring 23 urges the rotating member 19 so as to always rotate rearward. Further, a stopper 25 is provided below the pin 24 of the rear wall corner arm 17,
The rearward rotation of the rotating member 19 is stopped. The lower shaft 22
Are arranged so that the so-called dead center is not exceeded with respect to the lower mounting shaft 20. A lateral rotation restricting shaft 27 is provided at an intermediate portion of the rear wall corner arm 17, and both ends of the rotary restricting shaft 27 are positioned in a rotation restricting hole 28 formed in the side plate 10 of the frame 9. A spring 29 is provided between the rear wall corner arm 17 and the frame 9 side to urge the rear wall corner arm 17 to always rotate upward. Therefore, the rear wall corner arm 17
Is in the standby position when the rotation regulating shaft 27 is engaged with the upper inner peripheral edge of the rotation regulating hole 28, and is in the lowermost position when the rotation regulating shaft 27 is engaged with the lower inner peripheral edge of the rotation regulating hole 28. Become.

In the front wall corner pressing device 8, therefore, the pair of left and right front wall corner arms 30 are pivotally mounted on the outside of the left and right rear wall corner arms 17 by the shafts 31. A front wall corner pressing member 32 for pressing the corner of the front wall 5 of the seedling raising box 2 is attached to the lower part of the arm 30 for seedlings. The front wall corner pressing body 3
2 is formed in a horizontal flat plate shape. The rotating member 19
The lower parts of the position restricting body 33 are axially attached to the lower shafts 22 on the left and right sides of the position restricting body 33, respectively.
3 is formed with a long engaging slot 34 in the longitudinal direction,
Reference numeral 4 inserts and engages an engaging shaft 35 provided in the vicinity of the shaft 31. Further, the spring 3 is provided between the lower shaft 22 and the engaging shaft 35.
6 is provided. Therefore, the front wall corner arm 30 is urged by the spring 36 to rotate toward the rear wall corner arm 17 side, but the position restricting body 33 stops the rotation of the front wall corner arm 30. Then, the front wall corner pressing body 32 is made to stand by behind the rear wall corner pressing body 21 of the rear wall corner pressing device 7 and above the front wall 5 of the seedling raising box 2. Further, when the rear wall corner arm 17 rotates, the front wall corner arm 30 is pulled by the spring 36 and rotates, and the distance between the rear wall corner pressing body 21 and the front wall corner pressing body 32 is increased. Becomes larger than the thickness of the front wall 5 and the rear wall 4 of the nursery box 2, the engagement shaft 35 moves in the engagement elongated hole 34, and the rear wall corner pressing member 21 and the front wall corner pressing member 32 are moved. Increase the space between.

Further, although the rear wall corner pressing body 21 crosses over the front wall 5 and the rear wall 4, the front wall corner pressing body 32 rotates rearward as it is. Then, on the front and rear sides of the corner pressing device 6,
A front guide roller 40 and a rear guide roller 41 are provided. The front guide roller 40 and the rear guide roller 41 are provided on the left and right mounting shafts 42 and 43 so as to be in sliding contact with the upper surface of the side wall of the seedling raising box 2 to rotate. The mounting shaft 42 is mounted on the front end of the front arm 44, and the mounting shaft 43 is mounted on the rear arm 45.
Axed to the rear end. Front arm 44 and rear arm 4
5 is attached to the frame 9 by shafts 46 and 47, respectively. Engagement portions 48 and 49 are provided at the rear end of the front arm 44 and the front end of the rear arm 45, respectively.
The lateral plate engaging portion 51 of the engaging body 50 is engaged with the upper part of the member 9. The engaging body 50 is formed in an L shape in a front view, a front-rear direction shaft 52 is provided at a bent portion thereof, the shaft 52 is rotatably mounted on the frame 9, and is adjusted to a vertical plate engaging portion 53 of the engaging body 50. The dial 54 is brought into contact. 55 is a spring and 56 is a bracket.

[0010]

Next, the operation will be described. The present invention is configured as described above. When the seedling raising box 2 is supplied to the transfer table 1, the seedling raising box 2 is transferred in the direction A, and the floor soil is supplied by the upper floor feeding device during the transfer. Since the supply of the floor soil is a method of removing excess by supplying a large number of seeds, the upper surface of the floor soil is leveled by the rotating leveling brush, and the seedling box 2 that cannot be removed evenly by the rotary leveling brush. Excess corner soil accumulated in the corners of the rear wall 4 and the front wall 5 is pressed by the corner pressing device 6. The corner pressing device 6 includes a rear wall corner pressing device 7 that presses the corner of the rear wall 4 and a front wall corner pressing device 8 that presses the corner of the front wall 5, and the rear wall corner pressing device Upward rotation of the rear wall corner arm 17 is restricted by the rotation restricting shaft 27 and the rotation restricting hole 28, so that the rear wall corner pressing body 21 does not contact the upper surface of the bed soil in the seedling raising box 2, but Stand by at a height where it collides with the rear wall 4 of the box 2.

When the seedling raising box 2 is transferred by the transfer table 1 in this state, the front wall 5 of the seedling raising box 2 comes into contact with the rear surface of the rear wall corner pressing member 21 and the front wall 5 of the seedling raising box 2 moves forward. The rear wall corner pressing body 21 is advanced. Since the spring 23 is provided between the rear-wall-corner pressing body 21 and the rear-wall-corner arm 17, the rear-wall-corner-arm 17 is attached to the mounting shaft 1 by advancing the rear-wall-corner pressing body 21.
When the rotation restricting shaft 27 comes into contact with the lower inner peripheral edge of the rotation restricting hole 28 by rotating the rear wall corner arm 17 downward, the rear wall corner arm 17 rotates downward. However, the rear wall corner pressing body 21 is further advanced by the moving seedling raising box 2 and resists the spring 23 to rotate the rotating member 19 to the lower mounting shaft 2.
When the lower end of the rear wall corner pressing body 21 is rotated to the upper end of the front wall 5 by rotating upward about 0, the front wall 5 passes below the rear wall corner pressing body 21. Then, the rear wall corner pressing body 21 is moved by the elastic force of the spring 23 together with the rotating member 19 into the lower mounting shaft 2.
The rotation member 19 contacts the stopper 25 to stop rotation, and the rear wall corner arm 17 also rotates upward due to the elasticity of the spring 29, and the rotation restriction shaft 27 restricts rotation. Hole 2
The rear wall corner arm 17 stops rotating after coming into contact with the upper inner peripheral edge of 8, and the rear wall corner pressing body 21 stands by at a set height of the top surface of the floor soil.

Next, when the front wall 5 of the seedling raising box 2 passes below the rear wall corner pressing member 21 of the rear wall corner pressing device 7 and the seedling raising box 2 further advances, in fact, at this time, Although the front wall corner pressing body 32 of the front wall corner pressing device 8 presses the soil on the front wall 5, the rear wall corner pressing device 7 will be described first for the sake of explanation. The rear wall corner pressing body 21 which has passed over the front wall 5 and stands by at the set height of the floor soil upper surface abuts on the front surface (inner surface) of the rear wall 4, thereby causing the rear wall corner arm as described above. When the rear wall corner arm 17 is rotated downward and the rear wall corner arm 21 is slidably contacted with the front surface of the front wall 5 by the downward rotation of the rear wall corner arm 17, the rear wall corner pressing body 21 is lowered with respect to the floor soil. When the arm 17 for rotation is rotated by the rotation restricting shaft 27 and the rotation restricting hole 28 until it stops, the rear wall corner pressing body 21 presses the soil on the rear wall 4 to the maximum and flattens it, and then the front wall. Over the rear wall 4 by the same action as over 5. Thus, the front wall corner arm 30 of the front wall corner pressing device 8 is the front wall corner arm 3
The position regulating body 33 having the engaging elongated hole 34 is provided between the engaging shaft 35 of 0 and the lower shaft 22 of the rotating member 19, and the spring 36 is provided between the engaging shaft 35 and the lower shaft 22. The shaft 35 comes into contact with the lower inner peripheral edge of the engagement elongated hole 34 to regulate the forward rotation, and the front wall corner arm 30 is spaced by a predetermined distance from the rear wall corner pressing body 21 by the position regulating body 33. And wait at the upper rear position.

Next, when the seedling raising box 2 is brought into contact with the rear wall corner pressing body 21 and the rear wall corner arm 17 is rotated, the lower shaft 2 is rotated.
2 pulls the spring 36, the spring 36 pulls the engagement shaft 35, and the position restricting body 33 also rotates, so that the front wall corner arm 30 rotates about the shaft 31. In this case, the engagement shaft 35
Since the turning radius of is much smaller than the turning radius of the lower shaft 22, the rear wall corner pressing body 21 is slightly advanced by the front wall 5 of the seedling raising box 2, and the front wall corner pressing body 32 is moved forward. It pivots largely until it comes into close contact with the inside of the wall 5. That is, the rear wall corner pressing body 21 is the same as the moving speed of the seedling raising box 2, but the front wall corner pressing body 32 is rotated faster than the seedling growing box moving speed and the front wall corner pressing body 32 is moved to the front wall. Stick to the inside of 5. Next, the front wall corner pressing body 32 descends due to the rotation of the front wall corner arm 30 to maximally press the corner soil of the front wall 5 to make it flat, and the rear wall corner pressing body 21 moves to the front wall 5. After crossing over and returning, the arm 30 for the front wall corner
Is returned to the original position when pushed by the position regulating body 33. Then, when the first nursery box 2 passes, the subsequent nursery boxes 2 are transferred without opening a gap, so that the rear wall corner pressing member 21 presses the soil on the rear wall 4 to flatten it. While pressing, the front wall corner pressing body 32 presses the corner soil of the front wall 5 to flatten it, and the rear wall corner pressing body 21 crosses over the rear wall 4 and the front wall 5 at once.

In this case, when the front wall corner pressing body 32 presses the soil on the front wall 5 of the first nursery box 2, the distance between the front wall corner pressing body 32 and the rear wall corner pressing body 21 is The thickness of the front wall 5 is the same as that of one sheet, but when the succeeding seedling raising box 2 is transferred without opening, the space between the front wall corner pressing body 32 and the rear wall corner pressing body 21 is rearward. Although the wall 4 and the front wall 5 have two thicknesses and spread, the rear wall corner pressing body 21 resists the elasticity of the spring 36 because the engaging long hole 34 is formed in the position regulating body 33. And pulls the position regulating body 33 to the front side. Therefore, since the interval between the front wall corner pressing body 32 and the rear wall corner pressing body 21 is originally set to be narrower than the thickness of one sheet of the front wall 5, only the corner of the front wall 5 of the first seedling raising box 2 is set. Not only is it possible to press the soil and the pressure when it is continuously transferred, but it is also possible to use the nursery boxes 2 in which the rear wall 4 and the front wall 5 have different thicknesses. Therefore, the rear wall corner arm 1 for the rear wall corner pressing device 7
7 and the front wall corner arm 30 of the front wall corner pressing device 8,
Mounting plate 1 attached to frame 9 via link mechanism 12
1, the mounting plate 11 is adjustable in height with respect to the frame 9. Therefore, when the height adjusting dial 14 is rotated, the mounting plate 11 moves up and down to move the front wall of the rear wall corner pressing device 7. The heights of the corner pressing body 32 and the rear wall corner pressing body 21 of the front wall corner pressing device 8 are adjusted.

The pressing depths of the rear wall corner pressing body 21 and the front wall corner pressing body 32 do not change. That is, the pressing depths of the rear wall corner pressing body 21 and the front wall corner pressing body 32 match the vertical rotation width of the rear wall corner arm 17, which corresponds to the diameter of the rotation restricting hole 28. Therefore, according to this, bed soil is supplied in the nursery box 2. Therefore, the rotation restricting hole 28
If a double window is formed and the length of the rotation restricting shaft 27 in the moving direction can be changed, the pressing depth can be adjusted. In this case, the downward rotation and the upward rotation of the rear wall corner arm 17 are stopped by the rotation restriction shaft 27 provided in the rear wall corner arm 17 and the rotation restriction hole 28 provided in the frame 9.
Therefore, the structure is simple, and it operates reliably, and the cost is reduced. Since the front guide roller 40 and the rear guide roller 41 are provided on the front and rear sides of the corner pressing device 6, when the adjustment dial 54 is rotated in the normal direction, the vertical plate is engaged. The vertical plate engaging portion 53 is rotated about the shaft 52, the horizontal plate engaging portion 51 of the engaging body 50 is moved downward, and the horizontal plate engaging portion 51 resists the spring elasticity and the front arm. 44 and the rear arm 45 are pressed, whereby the front arm 44 and the rear arm 45 rotate to move the front guide roller 40 and the rear guide roller 41 upward. On the contrary, when the adjustment dial 54 is rotated in the reverse direction, the adjustment dial 54 is disengaged from the vertical plate engaging portion 53, and the horizontal plate engaging portion 51 of the engaging body 50 is moved upward to press the front arm 44 and the rear arm 45. Is released, whereby the front arm 44 and the rear arm 45 are rotated by the spring elastic force, and the front guide roller 40 and the rear guide roller 41 are moved upward.
Therefore, the front and rear front guide rollers 40 can be adjusted at one time.

[0016]

According to the present invention, a rear wall corner arm 17 whose mounting lower part is inclined obliquely rearward by a horizontal mounting shaft 18 above the transfer table 1 for laterally feeding the nursery box 2, and the rear wall corner arm. A rear wall corner pressing body 21 that presses a corner portion of the rear wall 4 of the seedling raising box 2 provided at the bottom of the rear seedling raising box 2, and the rear wall corner arm 17
Stops its upward rotation at a standby position where the rear wall corner pressing body 21 does not contact the upper surface of the soil in the nursery box 2 but collides with the front surface of the front wall 5 of the nursery box 2, A rear wall corner pressing device 7 configured to stop downward rotation when the rear wall corner pressing body 21 is at the maximum pressing position. A front wall corner arm 30 which is inclined and whose upper part is attached by a shaft 31;
A front wall corner pressing device 8 having a front wall corner pressing body 32 that presses a corner of the front wall 5 of the seedling raising box 2 provided under the front wall corner arm 30 is provided, and the front wall corner pressing device 8 is provided. The engaging elongated hole 34 of the position regulating body 33 is engaged with the engaging shaft 35 provided on the arm 30, and the end portion of the position regulating body 33 is connected to the rear wall corner arm 17.
The lower shaft 22 provided in the lower shaft 22 is fixed to the engaging shaft 35 and the lower shaft 22
A spring 36 for narrowing the space is provided between the rear wall corner arm 17 and the front wall corner arm 30, and the mounting shaft 18 and the shaft 31 are the rotation centers of the rear wall corner arm 17 and the front wall corner arm 30. When the front wall corner pressing member 21 and the front wall corner pressing member 32 press respectively, the distance between the rear wall corner pressing member 21 and the front wall corner pressing member 32 is narrower than the thickness of the front wall 5 of the seedling raising box 2. Since it is the corner floor soil pressing device of the seedling raising boxes respectively arranged as described above, even the corner portion of the front wall 5 of the leading seedling raising box 2 can be surely pressed and the workability is improved. The present invention
The rear wall corner arm 17 is formed to be longer than the front wall corner arm 30, the mounting shaft 18 is positioned above the shaft 31, and the gap between the shaft 31 and the engagement shaft 35 is the above. Since it is a device for pressing the soil on the corners of the nursery boxes arranged so as to be narrower than the space between the mounting shaft 18 and the lower shaft 22, it is only necessary to devise the center of rotation for raising the leading seedlings. Even at the corners of the front wall 5 of the box 2, it is possible to reliably press, improve workability, and reduce costs. According to the present invention, the rear wall corner pressing body 21 is hung on the lower portion of the rear wall corner arm 17 so as to be rotatable back and forth by the lower mounting shaft 20, and the lower portion is pressed after the corner portion of the rear wall 4 is pressed. The rear wall corner pressing member 21 presses the corner of the rear wall 4 because it is a corner floor soil pressing device of the nursery box configured to rotate around the mounting shaft 20 and get over the rear wall 4. Since the rear rear wall 4 is passed over, the transfer clogging of the seedling raising box 2 can be prevented, and the work can be reliably performed. The present invention
A frame 9 is fixed at a position above the transfer table 1, and a pair of left and right mounting plates 11 are provided on the frame 9 via a link mechanism 12 so as to move up and down with respect to the frame 9, and the mounting plate 11 is provided with the above-mentioned mounting plates 11. The rear wall corner arm 17 and the front wall corner arm 30 are provided, and the rear wall corner pressing device 7 and the front wall corner pressing device 8 are vertically adjustable with respect to the frame 9 by the height adjusting dial 14. Since it is the corner floor soil pressing device of the nursery box, the structure of the rear wall corner pressing device 7 and the front wall corner pressing device 8 can be simplified, and the vertical adjustment can be easily performed, so that various nursery boxes can be used. The effect that it can respond is produced.

[Brief description of the drawings]

FIG. 1 is an overall vertical side view.

FIG. 2 is a front view of the same.

FIG. 3 is an operation state diagram of the rear wall corner pressing device.

FIG. 4 is a state diagram of the same operation.

FIG. 5 is an operation state diagram of the rear wall corner pressing body and the front wall corner pressing body.

FIG. 6 is a vertical cross-sectional side view of a state in which a rear wall corner pressing device and a front wall corner pressing device are removed.

FIG. 7 is an exploded perspective view of a guide roller.

[Explanation of symbols]

1 ... transfer stand, 2 ... seedling box, 3 ... transfer roll, 4 ... rear wall,
5 front wall, 6 corner pressing device, 7 rear wall corner pressing device
8: front wall corner pressing device, 9: frame, 10: side plate, 1
DESCRIPTION OF SYMBOLS 1 ... Mounting plate, 12 ... Link mechanism, 13 ... Top plate, 14 ... Height adjustment dial, 17 ... Rear wall corner arm, 18 ... Mounting shaft, 19 ... Rotating member, 20 ... Lower mounting shaft, 21 ... Rear wall Corner pressing body, 22 ... Lower shaft, 23 ... Spring, 24 ... Pin, 2
5 ... Stopper, 27 ... Rotation regulation shaft, 28 ... Rotation regulation hole, 29 ... Spring, 30 ... Front wall corner arm, 31 ... Shaft, 3
2 ... Front wall corner pressing body, 33 ... Position regulating body, 34 ... Engaging elongated hole, 35 ... Engaging shaft, 36 ... Spring, 40 ... Front guide roller, 41 ... Rear guide roller, 42 ... Mounting shaft, 43 ... Mounting shaft, 44 ... Front arm, 45 ... Rear arm, 46 ...
Shaft, 47 ... Shaft, 48 ... Engagement part, 49 ... Engagement part, 50 ... Engagement body, 51 ... Horizontal plate engagement part, 52 ... Shaft, 53 ... Vertical plate engagement part, 54 ... Adjustment dial.

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[Procedure amendment]

[Submission date] December 28, 1995

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

[Fig. 2]

[Figure 3]

FIG. 4

[Figure 5]

FIG. 6

FIG. 7

Claims (4)

[Claims] 1. A rear wall corner arm 17 whose mounting lower part is inclined obliquely rearward by a horizontal mounting shaft 18 above a transfer table 1 for laterally feeding the nursery box 2, and the rear wall corner arm 17
A rear wall corner pressing body 21 for pressing a corner portion of the rear wall 4 of the seedling raising box 2 provided in the lower part of
The upward rotation of the rear wall corner pressing member 21 causes the seedling raising box 2 to rotate.
Stops at a standby position where the rear wall corner pressing body 21 is at the maximum pressing position without stopping contact with the upper surface of the soil inside, but colliding with the front surface of the front wall 5 of the seedling raising box 2. Having a rear wall corner pressing device 7 configured as described above,
A front wall corner arm 30 having an upper portion attached by a shaft 31 to the rear of the rear wall corner arm 17 and an upper portion attached by a shaft 31 and a front wall 5 of the nursery box 2 provided below the front wall corner arm 30. The front wall corner pressing device 8 having a front wall corner pressing member 32 that presses a corner of the front wall corner pressing member 32, and the engaging long hole of the position restricting member 33 on the engaging shaft 35 provided on the front wall corner arm 30. Engage 34,
An end of the position restricting body 33 is fixed to the lower shaft 22 provided on the rear wall corner arm 17, and a spring 36 is provided between the engaging shaft 35 and the lower shaft 22 to narrow the gap. When the mounting shaft 18 and the shaft 31, which are the rotation centers of the corner arm 17 and the front wall corner arm 30, are pressed by the rear wall corner pressing body 21 and the front wall corner pressing body 32, respectively. A nursery box corner floor soil pressing device arranged so that the interval between the rear wall corner pressing body 21 and the front wall corner pressing body 32 is smaller than the thickness of the front wall 5 of the nursery box 2. . 2. The rear wall corner arm 17 is formed to be longer than the front wall corner arm 30, and the mounting shaft 18 is positioned above the shaft 31, and the shaft 31 and The corner floor soil pressing device of the seedling raising box arranged so that the interval between the engaging shaft 35 and the mounting shaft 18 and the lower shaft 22 is narrower. 3. The rear wall corner pressing body 21 according to claim 1 or 2, wherein the rear wall corner pressing body 21 is hung on a lower portion of the rear wall corner arm 17 by a lower mounting shaft 20 so as to be rotatable back and forth. 4. A seedling raising box corner floor soil pressing device configured to press the corner portion 4 and then rotate around the lower mounting shaft 20 to get over the rear wall 4. 4. The method according to claim 1, 2 or 3.
A frame 9 is fixed to a position above the transfer table 1, and a pair of left and right mounting plates 11 are provided on the frame 9 via a link mechanism 12 so as to move up and down with respect to the frame 9. The rear wall corner arm 17 and the front wall corner arm 30 are provided on the rear wall corner, and the height adjustment dial 14 allows the rear wall corner pressing device 7 and the front wall corner pressing device 8 to be vertically adjusted with respect to the frame 9. Soil pressing device for the corners of the constructed nursery box.