JPH10243740A - Pressor for bed soil at corner of raising seedling box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject pressor for bed soil designed to attach the other end of a waiting connected body to an upper side arm part for front wall corner so as to assure quick reversion to a waiting position and improve operability. SOLUTION: This pressor for bed soil is so designed that a parallel link 18 for rear wall corner is slantly disposed behind, both 1st and 2nd arms 33 for front wall corner mounted by use of mounting shafts 32, 34 provided behind another set of mounting shafts 20, 22 and a front wall corner pressor 36 fixed so as to mutually connect the respective lower parts of the 1st and 2nd arms 33 are disposed behind the parallel link 18, another parallel link 30 for front wall corner is connected via a spring 37 for the front link to another pressor 24 for rear wall corner so as to always revolve downward, while an upper side arm part 29 for front wall corner is provided above the mounting section of the mounting shaft 34 for the 2nd arm 33, and the other end of a waiting connected body 39 with one end connected to the parallel link 18 is attached to the arm part 29 so as to control the downward revolution of the parallel link 30.

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, Japanese Patent Application Laid-Open No. 2-190120 discloses a method in which a frame is fixed at a position above a transfer table for feeding a seedling box laterally, and the frame is attached by a single mounting shaft provided on the frame side. A wall corner arm and a rear wall corner pressing body for pressing a corner of a rear wall of the seedling raising box fixed to a lower portion of the rear wall corner arm are disposed obliquely rearward and inclined, and provided behind the mounting shaft. A front wall corner arm attached by a single mounting shaft and a front wall corner pressing body for pressing a corner of the front wall of the seedling raising box fixed to a lower portion of the front wall corner arm are provided on the rear wall corner arm. It describes a corner floor soil pressing device of a seedling raising box that is arranged on the rear side and is configured so that an arm for a rear wall corner and an arm for a front wall corner can be interlocked.

[0003]

In the known example, since the corner pressing body is provided at the lower portion of the arm, the corner pressing body moves in an arc around the mounting shaft. However, there is a problem that it can only be pressed so as to be depressed and cannot be leveled. The pressing depth can be adjusted, and it can be beautifully leveled. Further, the return to the standby position is quickly and reliably performed.

[0004]

The object of the present invention is to make it possible to adjust the pressing depth, to make the floor soil surface even and beautiful, to improve the operability, to quickly return to the standby position, to ensure the operation, and to improve the working efficiency.

[0005]

According to the present invention, a frame 9 is fixed at a position above a transfer table 1 for feeding a nursery box 2 sideways, and a pair of left and right mounting shafts 20 and 22 provided on the frame 9 side. Seedling raising box fixed so as to connect the attached rear wall corner first arm 19 and rear wall corner second arm 21 to the lower portion of the rear wall corner first arm 19 and rear wall corner second arm 21. A rear wall corner parallel link 18 comprising a rear wall corner pressing body 24 for pressing a corner of the rear wall 4 is disposed obliquely rearward and inclined, and a mounting shaft 32 provided behind the mounting shafts 20 and 22. ,
The first arm 31 for the front wall corner and the second arm 33 for the front wall corner and the lower part of the first arm 31 for the front wall corner and the second arm 33 for the front wall corner, which are attached by 34, are fixed. The front wall corner pressing body 36 for pressing the corner of the front wall 5 of the seedling raising box 2 is disposed behind the rear wall corner parallel link 18, and the front wall corner parallel link 30 is always downward. The rear link corner pressing body 24 is rotated by the front link spring 37 so as to rotate.
And the upper arm 2 for the front wall corner above the mounting portion of the mounting shaft 34 of the second arm 33 for the front wall corner.
9 is formed on the upper arm 29 for the front wall corner, and one end for restricting the downward rotation of the parallel link 30 for the front wall corner is connected to the other end of the standby connecting body 39 connected to the parallel link 18 for the rear wall corner. It is a corner soil floor pressing device of the attached nursery box. The present invention provides a method for pressing a corner floor soil of a seedling raising box in which a weight 43 is provided at a portion of the upper arm portion 29 for the front wall corner that is farther from the attachment shaft 34 than the attachment portion with the connecting member 39 for standby. It is a device. The present invention relates to the parallel link 18 for the rear wall corner.
Is a first arm 19 for a rear wall corner below the mounting shaft 20.
Is pulled by the rear link spring 25, and the pressing depth adjusting stopper 26 is brought into contact with the upper arm 28 for the rear wall corner of the first arm 19 for the rear wall corner projecting upward from the mounting shaft 20. The wall corner pressing body 24 is made to stand by at a predetermined height position,
A corner floor soil pressing device for a nursery box in which the position of the pressing depth adjusting stopper 26 is changed to change the vertical width of the rear wall corner pressing body 24 so that the pressing depth can be changed and adjusted freely. It is. The present invention relates to the mounting shafts 20, 22 and the mounting shafts 32, 34 and the pressing depth adjusting stopper 2.
Numeral 6 is a corner soil floor pressing device of a nursery box provided on a pair of left and right mounting plates 11, 11 which are vertically attached to the frame 9 via a link mechanism. According to the present invention, the mounting plates 11, 11 are not moved downward by a height adjusting dial 13 provided on the frame 9 side, but are suspended in an upward movement in a free state. Corner floor soil of a seedling box provided with an engaging plate portion 15 which engages with the lower part of the dial 13 to retreat the rear wall corner pressing body 24 and the front wall corner pressing body 36 above the transfer path of the seedling raising box 2. It is a pressing device.

[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 is provided with any transfer means for transferring the seedling raising box 2 in the direction a. In the embodiment, transfer rolls 3 are provided at predetermined intervals. The transfer table 1 has a rear wall 4 and a front wall 5 on the rear side in the transfer direction of the seedling raising box 2.
Is provided with a corner pressing device 6 for pressing the floor soil at the corner of the corner. The corner pressing device 6 includes a rear wall corner pressing device 7 for pressing a corner of the rear wall 4 and a front wall corner pressing device 8 for pressing floor soil at a corner of the front wall 5.
And The transfer table 1 has a corner pressing device 6
The lower ends of a pair of left and right side plates 10 constituting a part of the frame 9 are fixed, and a pair of left and right mounting plates 11 that move up and down with respect to the frame 9 are attached to the side plates 10 and 10 via a link mechanism 12, respectively. A screw shaft of a height adjustment dial 13 is screwed to each side plate 10 of the frame 9, and the lower end of each height adjustment dial 13 is inserted into the mounting plate 11, and the lower surface of the mounting plate 11 is An engaging member (nut) 14 provided at the lower end of the screw shaft portion of the height adjustment dial 13 is brought into contact with the mounting plate 11 and the mounting plate 11 is moved up and down with respect to the frame 9 by turning the height adjustment dial 13. The mounting plate 11 is provided with an engagement plate portion 15 for release, and when the engagement plate portion 15 is engaged with the engagement member 14, the rear wall corner pressing device 7 and the front wall corner pressing device 8 are moved to the seedling raising box. Retreat above the second transfer path. 16
Numerals indicate scales (grooves) 17 provided on the side plate 10.
By adjusting the height, the standby height at which the rear wall corner pressing body 24 to be described later collides with the inner surface of the rear wall 4 of the seedling raising box 2 is adjusted.

The rear wall corner pressing device 7 includes a pair of right and left rear wall corner parallel links 18 having a middle portion of a rear wall corner first arm 19 mounted on a left-right mounting shaft 20 and a rear wall corner second arm 19. Arm 21
Are fixed to the left and right mounting shafts 22, respectively.
Reference numerals 0 and 22 are mounted on the mounting plate 11. Mounting plates 23 are fixed to the lower portions of the left and right rear wall corner first arms 19 and the rear wall corner second arms 21 respectively.
A rear wall corner pressing body 24 for pressing the corner of the rear wall 4 of the seedling raising box 2 having a mold shape is attached. Therefore, the rear wall corner parallel link 18 is, to be precise, the first arm 19 for the rear wall corner, the second arm 21 for the rear wall corner, and the mounting plate 11 connecting the upper part thereof,
It is constituted by a rear wall corner pressing body 24 connecting the lower portions thereof (the mounting plate 23 is also a component of the rear wall corner pressing body 24). A rear link spring 25 is provided between the mounting plate 23 and the mounting shaft 22 for urging the rear wall corner first arm 19 to always rotate upward.

A stopper 26 for adjusting the pressing depth is provided in the rotation locus of the upper arm 28 for the rear wall corner above the first arm 19 for the rear wall corner above the mounting shaft 20. The stopper 26 for adjusting the pressing depth is provided in the elongated hole 2 provided in the mounting plate 11.
7 so as to be able to move back and forth inside, and the position of the stopper 26 for adjusting the pressing depth is changed to change the contact position of the front edge of the upper arm portion 28 for the rear wall corner, and the parallel link for the rear wall corner is changed. By changing the inclination of 18, the vertical width of the rear wall corner pressing body 24 is changed, and the pressing depth (the depth from the upper surface of the seedling raising box 2 to the upper surface of the floor soil) is adjusted. The front wall corner pressing device 8 is provided with a pair of left and right front wall corner parallel links 3 on the rear side of the pair of left and right rear wall corner parallel links 18 in the transfer direction of the seedling raising box 2.
0, the upper part of the first arm 31 for the front wall corner is fixed to the mounting shaft 32, and the middle part of the second arm 33 for the front wall corner of the parallel link 30 for the front wall corner is fixed to the mounting shaft 34, respectively. Reference numeral 34 denotes a shaft mounted on the mounting plate 11, a mounting plate 35 is fixed below the front wall corner parallel link 30, and the mounting plate mounting plate 35 has a side view L.
A front wall corner pressing body 36 for pressing a corner of the front wall 5 of the seedling raising box 2 having a mold shape is attached (the mounting plate 35 is a front wall corner pressing body 36).
Components).

A front link spring 37 for biasing the front wall corner parallel link 30 to always rotate downward is provided between the front wall corner first arm 31 and the rear wall corner pressing body 24. Is provided. An engagement shaft 38 is provided on the front wall corner upper arm 29 of the front wall corner second arm 33 above the mounting shaft 34.
And a long hole 40 formed at the rear end side of the shaft-shaped standby connector 39 is engaged with the engagement shaft 38, and the standby connector 39 is
Is pivotally mounted on the upper portion of the upper arm 28 for the rear wall corner by the shaft 41. Therefore, the first arm 31 for the front wall corner always tries to rotate downward, but the connecting member 39 for standby pulls the engagement shaft 38 to regulate it, and the front wall corner pressing body 36 is moved to the rear. It is made to stand by at the back side of the rear wall corner pressing body 24 of the wall corner pressing device 7 and above the front wall 5 of the seedling raising box 2. Therefore, the elasticity of the rear link spring 25 is set stronger than that of the front link spring 37.

Although the front wall corner parallel link 30 is interlocked with the rear wall corner parallel link 18, the distance between the rear wall corner pressing body 24 and the front wall corner pressing body 36 is reduced. Engagement shaft 3
When the interval between the shaft 8 and the shaft 41 becomes narrow, the engaging shaft 38 moves in the long hole 40 of the standby connecting body 39 and absorbs it. When the front wall 5 and the rear wall 4 pass under the rear wall corner pressing body 24, the rear wall corner parallel link 18 and the front wall corner parallel link 30 return to the standby position. A weight 43 is provided above the front wall corner upper arm 29.
The weight 43 is formed by a horizontal axis in the left-right direction and connects the upper portions of the left and right front wall corner second arms 33. However, the weight 43 may be provided on each front wall corner second arm 33. Reference numeral 42 denotes a front guide roller and a rear guide roller provided on the front and rear sides of the corner pressing device 6, and the front guide roller 42 and the rear guide roller 42 are provided so as to slide on the upper surface of the side wall of the seedling raising box 2 and rotate. .

[0011]

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 for pressing a corner of the rear wall 4 and a front wall corner pressing device 8 for pressing a corner of the front wall 5. 7 Parallel link 1 for rear wall corner
8 is urged by a rear link spring 25 so as to rotate upward, and the first arm 1 for the rear wall corner of the parallel link 18 for the rear wall corner.
9, the front edge of the rear wall corner upper arm portion 28 abuts against the pressing depth adjusting stopper 26 to restrict rotation, and as a result,
The upward rotation of the entire rear wall corner parallel link 18 is restricted so that the rear wall corner pressing body 24 is at a height which does not contact the upper surface of the floor soil in the seedling raising box 2 but collides with the rear wall 4 of the seedling raising box 2. To wait.

Although the standby height will be described in detail later, the mounting plate 11 is moved up and down with respect to the side plate 10 by means of the height adjusting dial 13 so that the rear wall corner pressing body 24 which will be described later is mounted on the rear wall of the seedling raising box 2. 4 Adjust the standby height to wait at the height that collides with the inner surface. Thus, the front wall corner parallel link 30 is urged by the front link spring 37 so as to always rotate downward, but is connected to the rear wall corner parallel link 18 by the standby connecting body 39. Since the engagement shaft 38 is pulled by the standby connecting body 39, the rotation of the front wall corner second arm 33 is restricted, and as a result, the entire downward rotation of the front wall corner parallel link 30 is restricted. Then, it is made to stand by at an upper position not in contact with the front and rear walls 4 and 5 of the nursery box 2. Then, in the above-mentioned state, when the seedling box 2 having extra corner soil which cannot be removed even if the floor is filled with the transfer table 1 and leveled by the rotating leveling brush is transferred, the rear wall 4 of the seedling box 2 is moved. Abuts against the rear edge of the rear wall corner pressing body 24 and advances the rear wall corner pressing body 24 by the forward movement of the rear wall 4 of the seedling raising box 2 (the action of getting over the front wall 5 will be described later). It is omitted because it is the same as passing through the wall 4).

When the rear wall corner pressing body 24 advances, the rear wall corner first arm 19 and the rear wall corner second arm 21 rotate about the mounting shafts 20 and 22. Then, the rear wall corner pressing body 24 descends while sliding on the front surface of the rear wall 4, and when the rear wall corner first arm 19 and the rear wall corner second arm 21 are in a substantially vertical state, the rear wall corner 4 The soil is pressed to the maximum and flattened, and the first arm 19 for the rear wall corner and the second arm 21 for the rear wall corner are further rotated.
Rises while sliding on the front surface of the rear wall 4, and when the rear wall 4 passes below the rear wall corner pressing body 24, returns to the original standby position by the elasticity of the rear link spring 25, and is used for the rear wall corner. First arm 1
9 comes into contact with the pressing depth adjusting stopper 26 and stops.
When the rear wall corner pressing body 24 moves forward, the front link spring 37 pulls the front wall corner parallel link 30, while the rear wall corner pressing body 24 moves the shaft 41 to the center of the mounting shaft 20. Since the pivoting member moves to the rear side, the regulation of the standby connecting body 39 is loosened, and the engaging shaft 38 moves by the movement of the shaft 41 to rotate the front wall corner second arm 33 about the mounting shaft 34. As a result, the front wall corner parallel link 30 rotates downward as a whole.

At this time, since the shaft 41 is far away from the mounting shaft 20, it is moved backward by a predetermined ratio with respect to the forward distance of the rear wall corner pressing body 24. When the first arm 31 for the front wall corner and the second arm 33 for the front wall corner are in a substantially vertical state, the corner soil of the front wall 5 is maximized. The first arm 31 for the front wall corner and the second arm 33 for the front wall corner are further rotated so that the rear wall 4 passes below the rear wall corner pressing body 24, so that the rear wall corner is formed. By the upward rotation of the parallel link 18, the standby connecting body 39 pulls the engagement shaft 38 to rotate the entire front wall corner parallel link 30 upward and return to the original standby position. In this case, since the standby connecting body 39 causes the front wall corner pressing body 36 to wait at the standby position, the front wall corner pressing body 3 is moved with respect to the forward distance of the rear wall corner pressing body 24.
The shaft 41 and the engaging shaft 38 are moved backward by a predetermined ratio.
When the distance between the rear shaft 41 and the engagement shaft 38 of the rear wall corner pressing body 24 is set closer to the length of the standby connecting body 39, the rear wall corner pressing body 24 is moved rearward. At this time, the engaging shaft 38 is moved away from the wall 4 by the connecting member 39 for standby.
There is no hindrance by moving inside the long hole 40.

As described above, the rear wall corner pressing body 24 and the front wall corner pressing body 36 are lowered to press and level the corner soil of the front and rear walls 4, 5, but at this time, the rear wall corner parallelism is reduced. Since it is lowered by the link 18 and the front wall corner parallel link 30, the rear wall corner pressing body 24 and the front wall corner pressing body 36 are vertically moved up and down to press and level the corner soil beautifully. In particular, even when the standby height position and the pressing depth are changed, the pressing device moves vertically up and down, so that the pressing device has high versatility. That is, when the height adjustment dial 13 is turned, the mounting plate 11 is moved up and down with respect to the side plate 10 of the frame 9 to change and adjust the standby height position. At this time, the standby height is adjusted by aligning the pointer 16 of the mounting plate 11 with the scale (groove) scale 17 provided on the side plate 10. Also, the position of the pressing depth adjusting stopper 26 is changed,
When the inclination of the rear wall corner parallel link 18 is reduced by moving the seedling raising box 2 upward, the vertical width of the rear wall corner pressing body 24 is increased, and the pressing depth is increased.

The parallel link 18 for the rear wall corner and the parallel link 30 for the front wall corner set the height of the rear wall corner pressing body 24 and the front wall corner pressing body 36 according to the length of the standby connecting body 39. When the parallel link 18 for the rear wall corner is set by the stopper 26 for adjusting the pressing depth, the parallel link 30 for the front wall corner is synchronized with this, and the adjustment of the standby height is the same. The lower ends of the height adjusting dials 13 are respectively inserted into the mounting plate 11, and the lower end of the mounting plate 11 is provided with an engaging tool (nut) engaging tool 14 provided at a lower end of a screw shaft portion of the height adjusting dial 13. The mounting plate 11 can be freely lifted with respect to the side plate 10 and the height adjusting dial 13 because the mounting plate 11 is suspended and supported.
When the engaging device 5 is engaged with the engaging device 14, the rear wall corner pressing device 7 and the front wall corner pressing device 8 are retracted above the transfer path of the seedling raising box 2. As described above, since the front wall corner parallel link 30 is connected to the rear wall corner parallel link 18 by the standby connecting body 39, the front wall corner second arm 3
3 is regulated, and as a result, downward rotation of the entire front wall corner parallel link 30 is regulated. This is held by the elasticity of the rear link spring 25. Increasing the distance between the mounting shaft 34 and the connecting member 39 for standby
Lighter traction. Therefore, the upper arm 29 for the front wall corner is formed above the mounting shaft 34 of the second arm 33 for the front wall corner, and the standby connecting body 39 is connected to the upper arm 29 for the front wall corner by the engagement shaft 38. Since it is installed, operation is assured.

In this case, when the front and rear walls 4 and 5 of the seedling raising box 2 pass below the rear wall corner pressing body 24, the rear link spring 2
Although the parallel link 18 for the rear wall corner returns to the standby position by the elasticity of 5, the weight 43 is provided on the upper arm 29 for the front wall corner of the second arm 33 for the front wall corner. Even if the arm portion 29 is formed long, the rotation is accelerated by the weight 43, and the upward rotation of the entire front wall corner parallel link 30 is accelerated. As a result, the rear wall corner parallel link 18 and the front wall corner The corner parallel link 30 can be quickly returned to the standby position, thereby preventing interference with the front and rear walls 4 and 5 of the seedling raising box 2.

[0018]

According to the present invention, a frame 9 is fixed at a position above a transfer table 1 for feeding a seedling raising box 2 sideways, and a rear wall attached to the frame 9 by a pair of front and rear mounting shafts 20 and 22 in the left-right direction. Corner first arm 19 and rear wall corner second arm 21
And a rear wall corner pressing body 24 pressing the corner of the rear wall 4 of the seedling raising box 2 fixed so as to connect the lower portions of the rear wall corner first arm 19 and the rear wall corner second arm 21. The rear wall corner parallel link 18 is disposed obliquely rearward and is inclined, and the first arm 31 for the front wall corner and the second arm for the front wall corner mounted by the mounting shafts 32 and 34 provided behind the mounting shafts 20 and 22. Seedling raising box 2 fixed to connect the two arms 33 and the lower parts of the first arm 31 for the front wall corner and the second arm 33 for the front wall corner.
And the front wall corner pressing body 36 that presses the corner of the front wall 5 is disposed behind the rear wall parallel link 18, and the front wall corner parallel link 30 always rotates downward. As described above, the front arm 39 is connected to the rear wall corner pressing body 24 by the front link spring 37, and the front wall corner upper arm 29 is formed above the mounting portion of the mounting shaft 34 of the front wall corner second arm 33. And
A front wall corner parallel link 30 is attached to the front wall corner upper arm 29.
Of the nursery box to which the other end of the standby connecting body 39 having one end for restricting downward rotation of the rear wall is connected to the rear wall corner parallel link 18 is used. The pressing body 24 and the front wall corner pressing body 36 are parallel links 1 for the rear wall corner.
8 and the front wall corner parallel link 30 have the effect of vertically descending and being able to press and level the corner soil beautifully. Especially when the standby height position and the pressing depth are changed, it is vertically moved up and down. In addition to the effect that the pressing device with high height can be achieved, the connecting member 39 for standby is provided on the upper arm portion 29 for the front wall corner.
Is attached, the distance between the engagement shaft 38 and the attachment shaft 34 can be increased, and the front wall corner parallel link 30 can be extended.
This has the effect of ensuring the return operation of. The present invention provides a method for pressing a corner floor soil of a seedling raising box in which a weight 43 is provided at a portion of the upper arm portion 29 for the front wall corner that is farther from the attachment shaft 34 than the attachment portion with the connecting member 39 for standby. Even if the front wall corner upper arm 29 is formed long, the rotation is accelerated by the weight 43, and the upward rotation of the entire front wall corner parallel link 30 is accelerated. As a result, it is possible to quickly return the rear wall corner parallel link 18 and the front wall corner parallel link 30 to the standby position, and to prevent interference with the front and rear walls 4 and 5 of the seedling raising box 2. According to the present invention, after the rear wall corner parallel link 18 pulls the rear wall corner first arm 19 below the mounting shaft 20 by the rear link spring 25 and projects upward from the mounting shaft 20. The pressing depth adjusting stopper 26 is brought into contact with the rear wall corner upper arm 28 of the wall corner first arm 19 to allow the rear wall corner pressing body 24 to stand by at a predetermined height position, and the pressing depth adjustment is performed. The position of the stopper 26 is changed to change the vertical width of the rear wall corner pressing body 24 so that the pressing depth can be changed and adjusted. By changing the position of the stopper 26 for adjusting the pressing depth and changing the vertical width of the rear wall corner pressing member 24, the pressing depth can be changed, and the amount of floor soil supplied to the seedling raising box 2 can be obtained. This has the effect of being able to press the corners regardless of The parallel link 30 for the front wall corner is connected to the parallel link 18 for the rear wall corner by the connecting body 39 for standby.
When the vertical width of the rear wall corner pressing body 24 is adjusted, the vertical width of the front wall corner pressing body 36 can be adjusted at the same time, and the operability is very simple. Can respond. According to the present invention, the mounting shafts 20, 22 and the mounting shafts 32, 34 and the pressing depth adjusting stopper 26 are vertically mounted on the frame 9 via a link mechanism. Since the apparatus is a device for pressing the floor soil at the corner of the seedling raising box provided in the seedling raising box, there is an effect that the seedling raising box 2 having a different height can be accommodated. The present invention
The mounting plates 11, 11 are not moved downward by the height adjustment dial 13 provided on the frame 9 side, but are suspended in the upward movement in a free state.
3. A corner floor soil pressing of a nursery box provided with an engaging plate portion 15 which is engaged with a lower portion of the seedling box 3 and retracts the rear wall corner pressing body 24 and the front wall corner pressing body 36 above the transfer path of the seedling raising box 2. Since it is a device, when it is not used for testing or the like, it may be retracted, the use range may be expanded, the operation may be simply moved upward, the retreat operation is very simple, and the engagement plate portion 15 is The effect is that the cost is not increased.
It should be noted that, although the name of the corner floor soil pressing device of the seedling raising box, the type may be fertilizer as long as it presses the corner when the supply filled in the seedling raising box is removed with a rotary brush. The present invention is not limited by the title, code, etc. of the invention as long as it presses the upper corner of the supply filled in the box.

[Brief description of the drawings]

FIG. 1 is an overall vertical side view.

FIG. 2 is an overall vertical side view.

FIG. 3 is a side view showing a state in which a nursery box is in contact with a rear wall corner pressing body.

FIG. 4 is an operation state diagram.

FIG. 5 is a side view showing a state where a front wall corner pressing body is in contact with a seedling raising box.

FIG. 6 is a side view showing a state where a corner is pressed.

FIG. 7 is a side view of a state before a seedling raising box passes below a rear wall corner pressing body.

[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 ... Height adjustment dial, 14 ... Engagement tool, 15 ... Engagement plate part, 16 ... Pointer, 17
... Scale, 18 ... Parallel link for rear wall corner, 19 ... First arm for rear wall corner, 20 ... Mounting shaft, 21 ... Second arm for rear wall corner, 22 ... Mounting shaft, 23 ... Mounting plate, 24 ... Rear Wall corner pressing body, 25: rear link spring, 26: pressing depth adjustment stopper, 27: long hole, 28: rear wall corner upper arm 2
8, 29: Upper arm for front wall corner 29, 30: Parallel link for front wall corner, 31: First arm for front wall corner, 32: Mounting shaft, 33: Second arm for front wall corner, 34: Mounting Shaft, 35 ...
Mounting plate, 36: front wall corner pressing body, 37: front link spring, 38: engagement shaft, 39: standby connecting body, 40: long hole,
41: shaft, 42: front guide roller and rear guide roller, 43: weight 43.

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[Procedure amendment]

[Submission date] April 7, 1998

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 4

FIG. 2

FIG. 3

FIG. 5

FIG. 6

FIG. 7

Claims (5)

[Claims] 1. A frame 9 is fixed at a position above a transfer table 1 for horizontally feeding a seedling raising box 2, and is mounted on a pair of left and right mounting shafts 20 and 22 provided on the frame 9 side for a rear wall corner. A first arm 19 and a second arm 21 for a rear wall corner; a first arm 19 for the rear wall corner and a second arm 21 for a rear wall corner
A rear wall corner parallel link 18 comprising a rear wall corner pressing body 24 for pressing a corner of the rear wall 4 of the seedling raising box 2 fixed so as to connect the lower part of the seedling box 2 is arranged obliquely rearward and inclined, and 2
The first arm 31 for the corner of the front wall and the second arm 3 for the corner of the front wall, which are attached by the attachment shafts 32, 34 provided behind 0, 22
3 and a front wall corner pressing body 36 for pressing the corner of the front wall 5 of the seedling raising box 2 fixed so as to connect the lower portions of the first arm 31 for the front wall corner and the second arm 33 for the front wall corner. The front wall corner parallel link 30 is connected to the rear wall corner pressing body 24 by a front link spring 37 so that the front wall corner parallel link 30 always rotates downward. At the same time, a front wall corner upper arm 29 is formed above the mounting portion of the mounting shaft 34 of the front wall corner second arm 33, and the front wall corner upper arm 29 is parallel to the front wall corner. A corner floor soil pressing device for a nursery box to which the other end of a standby connecting body 39 having one end for regulating the downward rotation of the link 30 connected to the rear wall corner parallel link 18 is attached. 2. The seedling raising box according to claim 1, wherein a weight 43 is provided at a portion of the upper arm portion 29 for the front wall corner farther from a mounting portion of the mounting shaft 34 with respect to the mounting shaft 34. Corner floor soil pressing device. 3. The rear wall corner parallel link 18 according to claim 1, wherein the rear wall corner parallel link 18 pulls a rear wall corner first arm 19 below the mounting shaft 20 by a rear link spring 25. The stopper 26 for adjusting the pressing depth is brought into contact with the upper arm 28 for the rear wall corner of the first arm 19 for the rear wall corner protruding above the mounting shaft 20 to raise the rear wall corner pressing body 24 to a predetermined height. At the position, the position of the stopper 26 for adjusting the pressing depth is changed, and the vertical width of the rear wall corner pressing body 24 is changed so that the pressing depth can be changed and adjusted. Pressing device. 4. The mounting shaft according to claim 3, wherein
2 and the mounting shafts 32 and 34 and the stopper 26 for adjusting the pressing depth are provided on a pair of left and right mounting plates 11 and 11 which are vertically attached to the frame 9 via a link mechanism. Soil pressing device. 5. The mounting plate according to claim 4, wherein
1 is a height adjustment dial 13 provided on the frame 9 side.
Does not move downward, but the upward movement is hung in a free state. The mounting plates 11, 11 are engaged with the lower part of the height adjusting dial 13 to engage the rear wall corner pressing body 24 and the front wall corner pressing body 36. A floor soil pressing device for a seedling raising box provided with an engaging plate portion 15 for retracting the seedlings above the transfer path of the seedling raising box 2.