JPH09135635A - Apparatus for pressing corner bed soil of raising seedling box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject apparatus having a simplified structure, free from the necessity, of adjustment, effective for preventing maloperation and applicable for the treatment of various raising seedling boxes. SOLUTION: A back corner-processing arm 17 is placed above a transfer table for laterally transferring a raising seedling box. A back corner-pressing member 21 to press the back wall corner of a raising seedling box is suspended under the back corner-processing arm 17 with a lower attaching shaft in a state freely rotatable in forward and backward directions. The back corner-processing arm 17 is provided with a shaft 27 to restrict the rotation in lateral direction. The rotation restriction shaft 27 is inserted into a rotation restriction hole 28 opened at the side of a frame placed on the transfer table. The back corner pressing member 21 is set to a waiting position when the rotation restriction shaft 27 is brought into contact with the upper inner circumferential edge of the rotation restriction hole 28 and to the largest pressing force position when the rotation restriction shaft 27 is brought into contact with the lower inner circumferential edge of the rotation restriction hole 28. The depth at the maximum pressing force of the back wall corner pressing member 21 is made to be changeable by properly selecting adjusting shaft cylinders 37 having different outer diameters and fitting the selected cylinder to the rotation restriction shaft 27.

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 Prior Art In Japanese Patent Laid-Open No. 7-123868, which has been publicly known, a lower part attached by a left and right mounting shaft to an upper position of a transfer table for laterally feeding a nursery box, and an arm portion inclined obliquely backward, A rear wall corner pressing device is configured by a rear wall corner pressing member that presses a corner portion of a rear wall of a seedling raising box that is rotatably and rotatably suspended at a lower part of an arm portion by a lower mounting shaft. There is described a configuration in which an adjusting screw for restricting downward rotation and a screw for restricting upward rotation are provided between the portion and the frame.

[0003]

Since the above-mentioned known example is provided with the adjusting screw for restricting downward rotation and the screw for restricting upward rotation, it is necessary to readjust if touched by mistake. .

[0004]

An object of the present invention is to simplify the structure, eliminate the need for adjustment, prevent malfunction, and support various nursery boxes.

[0005]

According to the present invention, a rear wall corner arm 17 having a lower part mounted by a mounting shaft 18 in the left-right direction at an upper position of a transfer table 1 for laterally feeding a nursery box 2, and a rear wall corner arm 17,
The rear wall corner pressing member 21 for pressing the corner portion of the rear wall 4 of the seedling raising box 2 suspended by the lower mounting shaft 20 in the lower part of the rear wall corner arm 17 and pressing the rear wall corner portion. In the structure of the device 7, the rear wall corner arm 17 is provided with a rotation restricting shaft 27 in the left-right direction, and the rotation restricting shaft 27 is formed on the side of the frame 9 provided on the transfer table 1. Restriction hole 2
8, the rotation restricting hole 28 is provided with the rear wall corner pressing body 21 when the rotation restricting shaft 27 comes into contact with the upper inner peripheral edge thereof.
As a standby position, and the rotation restricting shaft 27 is provided on the lower inner peripheral edge thereof.
Is configured to regulate the rotation of the rear wall corner arm 17 so that the rear wall corner pressing body 21 reaches the maximum pressing position, and the rotation restricting shaft 27 has an outside diameter. The rear wall corner pressing body 2 is formed by selectively fitting different adjustment shaft cylinders 37.
1 is a corner floor soil pressing device of a nursery box configured to change the maximum pressing depth of 1. According to the present invention, the frame 9 is fixed at a position above the transfer table 1, and the frame 9 is provided with a pair of left and right mounting plates 11 via a link mechanism 12 so as to move up and down with respect to the frame 9. Mounting plate 1
1, the rear wall corner arm 17 and the rotation restricting hole 28
Is provided, and the rear wall corner pressing device 7 is configured to be vertically adjustable with respect to the frame 9 by the height adjusting dial 14 as a corner floor soil pressing device of a nursery box. The present invention relates to a front wall corner arm 30 in which a rear part of the rear wall corner arm 17 is inclined obliquely backward and an upper part is attached by a shaft 31, and a seedling raising 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 the corner of the front wall 5 is provided, and the engagement shaft 35 provided on the front wall corner arm 30 is provided with the position regulating member 33. The engaging elongated hole 34 is engaged, and the end portion of the position restricting body 33 is axially fixed to the lower shaft 22 provided on the rear wall corner arm 17 so that a space is provided between the engaging shaft 35 and the lower shaft 22. This is a corner floor soil pressing device of a nursery box provided with a spring 36 for narrowing. According to the present invention, a rear wall corner arm 17 whose mounting lower portion is inclined obliquely rearward by a horizontal mounting shaft 18 and a rear wall corner arm 17 above the transfer table 1 for laterally feeding the nursery box 2. A rear wall corner pressing body 21 that presses a corner portion of the rear wall 4 of the seedling raising box 2 provided in the lower portion, and the rear wall corner arm 17 is rotated upwardly by the rear wall corner pressing body. 21 does not contact the upper surface of the soil in the seedling raising box 2 but stops at the standby position where it collides with the front wall 5 of the seedling raising box 2,
A rear-wall corner pressing device 7 configured to stop the downward rotation when the rear-wall corner pressing body 21 is at the maximum pressing position is provided, and the rear-wall corner arm 17 is provided with a rear portion, and the rear-wall corner pressing device 17 is inclined obliquely rearward. A front wall corner arm 30 whose upper part is attached by a shaft 31,
A front wall corner pressing device 8 is provided which is provided under the front wall corner arm 30 and which has a front wall corner pressing member 32 for pressing the corner of the front wall 5 of the seedling raising box 2, and Front wall corner arm 3
The engaging elongated hole 34 of the position regulating body 33 is attached to the engaging shaft 35 provided at 0.
A spring 36 that engages with each other and axially locks the end portion of the position restricting body 33 to the lower shaft 22 provided on the rear wall corner arm 17 to narrow the gap between the engaging shaft 35 and the lower shaft 22. When the rear wall corner arm 17 is provided and is rotated by the forward movement of the seedling raising box 2,
The front wall corner arm 30 is also configured to start rotating, and the rear wall corner arm 17 is provided with a rotation restricting shaft 27 in the left-right direction, and the rotation restricting shaft 27 is attached to the transfer table 1. The rotation regulating hole 28 formed on the side of the provided frame 9 is inserted into the rotation regulating hole 28.
Contacting the rear wall corner pressing member 21 to the standby position,
When the rotation restricting shaft 27 comes into contact with the lower inner peripheral edge thereof, the rotation of the rear wall corner arm 17 is restricted so as to reach the maximum pressing position of the rear wall corner pressing body 21. The corner portion of the nursery box configured to selectively fit the rotation regulating shaft 27 with the adjusting shaft cylinders 37 having different outer diameters to change the maximum pressing depth of the rear wall corner pressing member 21. This is a floor soil pressing device. According to the present invention, the frame 9 is fixed at a position above the transfer table 1, and the frame 9 is provided with a pair of left and right mounting plates 11 via a link mechanism 12 so as to move up and down with respect to the frame 9. The mounting plate 11 is provided with the rear wall corner arm 17, the front wall corner arm 30, and the rotation restricting hole 28, and the height adjusting dial 14 is used to press the rear wall corner pressing device 7 and the front wall corner with respect to the frame 9. This is a corner floor soil pressing device of a nursery box in which the part pressing device 8 is vertically adjustable.

[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, the mounting plates 11 are attached to the lower ends of the height adjusting dials 14, respectively, and the mounting plates 11 are moved up and down with respect to the frame 9 by rotating the height adjusting dials 14. Reference numeral 15 is a pointer, which adjusts the height according to a scale (not shown) provided on the side plate 10.

The rear wall corner pressing device 7 fixes the upper portions of a pair of left and right rear wall corner arms 17 to a horizontal mounting shaft 18, 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. The lower shaft 2 in the left-right direction is provided below the rotating member 19.
2 is provided, the lower end of the spring 23 is locked to the lower shaft 22,
The upper end of the spring 23 is locked to the pin 24 provided on the rear wall corner arm 17, and the spring 23 urges the rotating member 19 so as to always rotate rearward. A stopper 25 is provided below the pin 24 of the rear wall corner arm 17 to stop the rearward rotation of the rotary member 19. The lower shaft 22 is arranged so as not to exceed a so-called dead center 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 set to the standby position when the rotation restricting shaft 27 engages with the upper inner peripheral edge of the rotation restricting hole 28, and rotates to the lower inner peripheral edge of the rotation restricting hole 28. When the restriction shaft 27 is engaged, it comes to the lowermost position. Then, several kinds of adjusting shaft cylinders 37 having different outer diameters are prepared, and the adjusting shaft cylinder 37 is appropriately selected and fitted to the end portion of the rotation restricting shaft 27. That is, by fitting the adjustment shaft cylinder 37 into the rotation restricting shaft 27, the position where the rotation restricting shaft 27 abuts on the inner circumference of the rotation restricting hole 28 is changed, so that the rear wall corner arm 17 is provided. The rotation angle of is changed to change the pressing depth of the rear wall corner pressing body 21. Thus, the front wall corner pressing device 8
The upper part of the pair of left and right front wall corner arms 30 is attached to the outside of the left and right rear wall corner arms 17 by a shaft 31, and the front wall 5 of the nursery box 2 is located below the front wall corner arms 30. The front wall corner pressing body 32 that presses the corners of is attached. The front wall corner pressing member 32 is formed in a flat plate shape in the left-right direction. 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 rotating member 19, respectively, and the engaging elongated holes 34 extending in the longitudinal direction of the position restricting body 33 are formed in the upper part of the position restricting body 33. Then, the engaging elongated hole 34 inserts and engages with the engaging shaft 35 provided in the vicinity of the shaft 31. A spring 36 is provided between the lower shaft 22 and the engagement shaft 35.

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 arm 30. Then, the front wall corner pressing body 32 is made to stand 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 seedling raising box 2, the engagement shaft 35 is engaged with the engagement elongated hole 34.
Moving inside, the rear wall corner pressing body 21 and the front wall corner pressing body 3
Increase the space between the two. Further, the rear wall corner pressing body 21 rides over the front wall 5 and the rear wall 4, but the front wall corner pressing body 32 rotates rearward as it is. Then, a front guide roller 40 and a rear guide roller 41 are provided on the front and rear sides of the corner pressing device 6. The front guide roller 40 and the rear guide roller 41 are attached to the left and right mounting shafts 42 and 43 by the seedling raising box 2.
It is provided so as to be in sliding contact with the upper surface of the side wall of the and rotate. Mounting shaft 4
2 is mounted on the front end of the front arm 44, and the mounting shaft 43 is mounted on the rear end of the rear arm 45. The front arm 44 and the rear arm 45 are connected to the frame 9 by shafts 46 and 47, respectively.
To the shaft. The rear end of the front arm 44 and the rear arm 4
Engagement portions 48 and 49 are provided at the front end of 5, respectively, and a horizontal plate engagement portion 51 of an engagement body 50 is engaged above the engagement portions 48 and 49. 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. 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, it is simple in construction, works reliably, and reduces cost.

When the seedling raising box 2 is transferred by the transfer table 1 in the above 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 is in contact. The rear wall corner pressing body 21 is advanced by the forward movement of. 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 1 is moved by the forward movement of the rear-wall-corner pressing body 21.
7 is rotated around the mounting shaft 18, and the rear wall corner arm 17
When the rotation restricting shaft 27 comes into contact with the lower inner peripheral edge of the rotation restricting hole 28 by the downward rotation of the rear wall, the rear wall corner arm 17 stops rotating downward, but the rear wall corner pressing body 21 moves. Nursery box 2
Further advances to rotate the rotating member 19 upward about the lower mounting shaft 20 against the spring 23, and the rear wall corner pressing member 2
When the lower end of 1 rotates to the upper end of the front wall 5, the front wall 5 passes below the rear wall corner pressing body 21. Then, the rear wall corner pressing body 21 rotates together with the rotating member 19 around the lower mounting shaft 20 by the elastic force of the spring 23, and the rotating member 19 comes into contact with the stopper 25 to stop the rotation. The arm 17 also rotates upward due to the elasticity of the spring 29, and the rotation restricting shaft 27 comes into contact with the upper inner peripheral edge of the rotation restricting hole 28 so that the rear wall corner arm 1 is provided.
The rotation of 7 is stopped, and the rear wall corner pressing body 21 stands by at the original height.

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 contacts the rear wall corner pressing body 21 and the rear wall corner arm 17 is rotated, the lower shaft 2
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, since the turning radius of the engaging shaft 35 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 nursery box 2. The front wall corner portion pressing body 32 pivots largely until it comes into close contact with the inside of the front wall 5. That is, the rear wall corner pressing body 21 is the seedling raising box 2
However, the front wall corner pressing body 32 rotates faster than the seedling raising box moving speed and the front wall corner pressing body 32 adheres to the inside of the front wall 5. Next, for the front wall corner By the rotation of the arm 30, the front wall corner pressing body 32 descends to press the corner soil of the front wall 5 to the maximum and flatten it, and when the rear wall corner pressing body 21 gets over the front wall 5 and returns, The wall corner arm 30 returns to its original position when pushed by the position restricting 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, the soil on the front wall 5 of the first seedling raising box 2 is replaced with the front wall corner pressing body 3.
When 2 presses, the distance between the front wall corner pressing body 32 and the rear wall corner pressing body 21 is the same as the thickness of one sheet of the front wall 5,
When the succeeding seedling raising box 2 is transferred without opening a gap, the space between the front wall corner pressing body 32 and the rear wall corner pressing body 21 is changed to the rear wall 4.
And the front wall 5 has two thicknesses and spreads, but since the engaging long hole 34 is formed in the position restricting body 33, the rear wall corner pressing body 21 is positioned against the elasticity of the spring 36. Regulator 33
Pull to the front. 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 front wall corner arm 30 stands by at a predetermined position with respect to the rear wall corner arm 17 by the position restricting body 33 and the spring 36, and is rotated downward together with the rear wall corner arm 17 to a predetermined position. Move. And the arm 1 for the rear wall corner
As described above, since the rotation restricting shaft 27 comes into contact with the inner peripheral edge of the rotation restricting hole 28 as described above, the standby at the predetermined position and the downward rotation at the predetermined position are stopped. Not only the arm 17, but also the front wall corner arm 30 is restricted from rotating by the rotation restricting shaft 27 and the rotation restricting hole 28. Therefore, according to the present invention, several kinds of adjusting shaft cylinders 37 having different outer diameters are prepared, and the adjusting shaft cylinder 37 is appropriately selected and fitted to the end portion of the rotation restricting shaft 27. An adjusting shaft cylinder 37 abuts on the inner circumference of the rear shaft 28 to change the rotation angle of the rear wall corner arm 17. Therefore, the rear wall corner pressing body 21
And change the pressing depth of 32. In this case, when the adjusting shaft cylinder 37 is fitted on the rotation restricting shaft 27, the standby position is lowered and the maximum pressing position is increased by the thickness of the adjusting shaft cylinder 37, so that the adjusting shaft cylinder 37 is finally restricted in rotation. Fitting on the shaft 27 means changing the vertical width of the rear wall corner pressing body 21 and the front wall corner pressing body 32. Wall corner pressing device 8
The arm 30 for the front wall corner of the
The height of the mounting plate 11 is adjustable 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 rear wall corner. The heights of the front wall corner pressing body 32 of the part pressing device 7 and the rear wall corner pressing body 21 of the front wall corner pressing device 8 are adjusted.

Therefore, the adjustment shaft cylinder 37 is fitted to the rotation restricting shaft 27 to determine the vertical widths of the rear wall corner pressing body 21 and the front wall corner pressing body 32, and based on this, the rear wall corners are determined. When the partial pressing body 21 and the front wall corner pressing body 32 are adjusted to the height corresponding to the seedling raising box 2, the adjustment is completed. That is, for example,
If the diameter of the rotation restricting hole 28 is 10 mm and the thickness of the adjusting shaft cylinder 37 is 1 mm and 2 mm, the rear wall corner pressing member 21 moves up and down by 10 mm when the adjusting shaft cylinder 37 is not used, and is 1 mm. The adjustment barrel 37 has a vertical movement of 8 mm, and the 2 mm adjustment barrel 37 has a vertical movement of 6 mm, which corresponds to the pressing depth. Therefore, if the 1 mm adjusting shaft cylinder 37 is used, the standby position is lowered by 1 mm. Therefore, if the mounting plate 11 is moved up by 1 mm, it waits at a predetermined position and operates correctly, and the rear wall from the upper surface of the seedling raising box 2 is operated. The corner pressing body 21 presses 8 mm (note that the rotation restricting shaft 2
Since 7 moves in an arc in the rotation restricting hole 28, when the diameter of the rotation restricting hole 28 is 10 mm, the rear wall corner pressing member 2 is provided.
1 does not move up and down exactly 10 mm, but it is explained in this way for easy understanding. In practice, the diameter of the rotation restricting hole 28 and the adjustment are adjusted so that the rear wall corner pressing body 21 moves up and down in this way. The thickness of the shaft cylinder 37 is set). in this way,
The rotation restricting shaft 27 and the rotation restricting hole 28 restrict the rotation of the rear wall corner pressing body 21 and the front wall corner pressing body 32, and the adjusting shaft cylinder 37 allows the vertical width to be changed. Mounting plate 1
1 and the height adjustment dial 14 for pressing the rear wall corner portion 2
Since the height relationship between 1 and the front wall corner pressing body 32 is configured to move up and down without changing, it was initially shipped with the rotation restricting shaft 27 and the rotation restricting hole 28 set. It can be used immediately even in a state, it can also be used for raising seedling boxes 2 having different depths, and the pressing depth can be changed depending on the situation.

On the front and rear sides of the corner pressing device 6, however,
Since the front guide roller 40 and the rear guide roller 41 are provided, when the adjustment dial 54 is rotated in the normal direction, the vertical plate engaging portion 53 is pushed, and the vertical plate engaging portion 53 rotates about the shaft 52, and the engagement is performed. The lateral plate engaging portion 51 of the united body 50 moves downward, and the lateral plate engaging portion 51 presses the front arm 44 and the rear arm 45 against the elastic force of the spring 55, whereby the front arm 44 and the rear arm. 45 rotates 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. The front arm 44 and the rear arm 45.
Is rotated by the elasticity of the spring 55 to rotate the front guide roller 40.
And the rear guide roller 41 moves upward. Therefore,
The front and rear front guide rollers 40 can be adjusted at one time.

[0017]

According to the present invention, the rear wall corner arm 17 whose lower part is attached to the upper position of the transfer table 1 for laterally feeding the nursery box 2 by the horizontal mounting shaft 18 is inclined rearward, and the rear wall corner arm. The rear wall corner pressing device 7 is configured by the rear wall corner pressing member 21 that presses the corner of the rear wall 4 of the seedling raising box 2 that is hung on the lower part of the arm 17 by the lower mounting shaft 20 so as to be rotatable back and forth. In this case, the rear wall corner arm 17 is provided with a left and right rotation restricting shaft 27, and the rotation restricting shaft 27 is inserted into a rotation restricting hole 28 formed in the transfer table 1 on the frame 9 side. The rotation restricting hole 28 is provided on the inner peripheral edge of the upper side thereof with the rotation restricting shaft 2
When the rear wall corner pressing member 21 comes into contact with the rear wall corner pressing member 21, the rear wall corner pressing member 21 comes to the standby position, and when the rotation regulating shaft 27 comes into contact with the lower inner peripheral edge thereof, the rear wall corner pressing member 21 reaches the maximum pressing position. ,
The rear wall corner arm 17 is configured to restrict the rotation, and the rotation restricting shaft 27 is selectively fitted with the adjusting shaft cylinders 37 having different outer diameters. Since it is the corner floor soil pressing device of the nursery box configured to change the maximum pressing depth of the rear wall arm 17, the rear wall corner arm 17 is provided with the rotation restricting hole 28.
The rotation is restricted by the rotation restricting shaft 27 that comes into contact with the inner peripheral edge of the shaft to prevent erroneous operation and ensure reliable operation, and the structure is simplified to facilitate manufacturing / assembly and reduce costs. Further, there is an effect that it is not necessary to attach various things to the outer periphery of the frame 9. Further, by preparing several types of adjusting shaft cylinders 37 having different outer diameters, selecting the adjusting shaft cylinder 37 appropriately, and fitting the adjusting shaft cylinder 37 into the end portion of the rotation restricting shaft 27, the rear wall corner pressing member 21 can be obtained. The maximum pressing depth of can be changed, and adjustment at the time of use at the time of shipment becomes easy. According to the present invention, the frame 9 is fixed at a position above the transfer table 1,
The link mechanism 1 so as to move up and down with respect to the frame 9.
A pair of left and right mounting plates 11 are provided via
The rear wall corner arm 17 and the rotation restricting hole 28 are provided in the rear wall corner soil, and the rear wall corner pressing device 7 is vertically adjustable with respect to the frame 9 by the height adjusting dial 14. Since it is a pressing device, it can be easily adjusted up and down, can be applied to various nursery boxes, and can be easily assembled and installed, and the maximum pressing depth of the rear wall corner pressing member 21 by the adjusting shaft cylinder 37 can be achieved. There is an effect that the standby position at the time of changing can be made appropriate for the nursery box 2, and an effect that the pressing depth can be changed more reliably and accurately. Further, when the overlapping width between the lower end of the rear wall corner pressing body 21 and the upper end of the front wall 5 of the seedling raising box 2 is changed, the descending amount of the rear wall corner pressing body 21 with respect to the depth of the seedling raising box 2 is changed. Therefore, depending on the adjusting method, the pressing depth can be finely adjusted. The present invention is directed to a front wall corner arm 30 in which the rear wall arm 17 has a rear portion which is inclined rearward and whose upper portion is attached by a shaft 31.
And a front wall corner pressing device 8 having a front wall corner pressing body 32 provided below the front wall corner arm 30 and pressing a corner of the front wall 5 of the seedling raising box 2, 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 corner arm 30, and the end portion of the position regulating body 33 is attached to the lower shaft 22 provided on the rear wall corner arm 17. Since it is a corner floor soil pressing device of a nursery box provided with a spring 36 that locks the shaft and narrows the gap between the engaging shaft 35 and the lower shaft 22, the rotation of the rear wall corner arm 17 is prevented. By restricting the rotation restriction shaft 27 and the rotation restriction hole 28, the rotation of the front wall corner arm 30 is also restricted,
The rear wall corner pressing device 7 can be operated reliably by preventing malfunction.
Also, the structure of the front wall corner pressing device 8 is simplified to facilitate the manufacturing and assembling and reduce the cost. Further, there is an effect that it is not necessary to attach various things to the outer periphery of the frame 9. According to the present invention, a rear wall corner arm 17 whose mounting lower portion is inclined obliquely rearward by a horizontal mounting shaft 18 and a rear wall corner arm 17 above the transfer table 1 for laterally feeding the nursery box 2. A rear wall corner pressing body 21 for pressing a corner portion of the rear wall 4 of the seedling raising box 2 provided at the lower portion, 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 the downward rotation when the rear wall corner pressing body 21 is at the maximum pressing position is provided, and is tilted obliquely rearward at the rear part of the rear wall corner arm 17. Axis 31 on top
And a front wall corner pressing body 32 that is provided below the front wall corner arm 30 and presses the corner of the front wall 5 of the seedling raising box 2. The front wall corner pressing device 8 is provided, the engagement elongated hole 34 of the position restricting body 33 is engaged with the engaging shaft 35 provided on the front wall corner arm 30, and the end of the position restricting body 33 is set to the above-mentioned position. A spring 36 that is fixed to the lower shaft 22 provided on the rear wall corner arm 17 and narrows the gap between the engagement shaft 35 and the lower shaft 22 is provided.
When the seedling raising box 2 is rotated by the forward movement of the seedling raising box 2, the front wall corner arm 30 is also configured to start rotating, and the rear wall corner arm 17 is provided with a horizontal rotation restricting shaft 27. The rotation restricting shaft 27 is inserted into a rotation restricting hole 28 formed on the side of the frame 9 provided on the transfer table 1, and the rotation restricting hole 28 is
When the rotation restricting shaft 27 contacts the upper inner peripheral edge, the rear wall corner pressing body 21 is set to the standby position, and when the rotation restricting shaft 27 contacts the lower inner peripheral edge, the rear wall corner pressing member 21 is pressed. Body 2
1, so that the rear wall corner arm 1 is located at the maximum pressing position 1.
The rotation restricting shaft 27
In this case, an adjusting shaft cylinder 37 having a different outer diameter is selectively fitted to change the maximum pressing depth of the rear wall corner pressing member 21. Therefore, there is an effect that the configurations of the rear wall corner pressing device 7 and the front wall corner pressing device 8 can be simplified to facilitate the manufacturing and assembling and reduce the cost. According to the present invention, the frame 9 is fixed at a position above the transfer table 1, and the frame 9 is provided with a pair of left and right mounting plates 11 via a link mechanism 12 so as to move up and down with respect to the frame 9. The mounting plate 11 is provided with the rear wall corner arm 17, the front wall corner arm 30, and the rotation restricting hole 28, and the height adjusting dial 14 is used to press the rear wall corner pressing device 7 and the front wall corner with respect to the frame 9. Since the part pressing device 8 is a corner floor soil pressing device of a seedling raising box configured to be adjustable up and down, the front wall corner pressing part is pressed by rotating the rear wall corner pressing device 7 rear wall corner arm 17. Since the front wall corner arm 30 of the device 8 also rotates, if the rear wall corner pressing device 7 is adjusted, the front wall corner pressing device 8 can also be adjusted, and the adjustment can be performed once and the pressing depth is controlled. Since the movement restricting hole 28 is formed in the mounting plate 11, even if the height is adjusted, Pressing depth of the corner portion pressing member 21 is not changed, to simplify the adjustment. Further, since the positional relationship between the rear wall corner arm 17 and the front wall corner arm 30 does not change, the pressing depth of the front wall corner pressing device 8 does not change, and the adjustment can be performed easily.

[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 in a state in which a rear wall corner pressing device and a front wall corner pressing device are removed.

FIG. 7 is an operation state diagram of the adjustment barrel.

FIG. 8 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, 37 ... Adjusting barrel, 4
0 ... Front guide roller, 41 ... Rear guide roller, 42
... Mounting shaft, 43 ... Mounting shaft, 44 ... Front arm, 45 ... Rear arm, 46 ... Shaft, 47 ... Shaft, 48 ... Engaging portion, 49 ...
Engaging part, 50 ... Engaging body, 51 ... Horizontal plate engaging part, 52 ... Shaft,
53 ... Vertical plate engaging portion, 54 ... Adjustment dial.

[Procedure amendment]

[Submission date] January 12, 1996

[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

[Figure 8]

Claims (5)

[Claims] 1. A rear wall corner arm 17 whose lower part is attached to a position above a transfer table 1 for laterally transporting a nursery box 2 by a horizontal mounting shaft 18, and a rear wall corner arm 17 which inclines obliquely backward, and the rear wall corner arm 1
Rear wall corner pressing body 2 for pressing the corner of the rear wall 4 of the seedling raising box 2 hung on the lower part of 7 by a lower mounting shaft 20 so as to be rotatable back and forth.
In the one in which the rear wall corner pressing device 7 is configured by 1 and 2, the rear wall corner arm 17 is provided with the rotation restricting shaft 27 in the left-right direction, and the rotation restricting shaft 27 is provided in the transfer table 1. The rotation restriction hole 28 formed on the frame 9 side is inserted into the rotation restriction hole 28, and the rotation restriction shaft 27 is provided on the inner peripheral edge of the upper side thereof.
Contacting the rear wall corner pressing member 21 to the standby position,
When the rotation restricting shaft 27 comes into contact with the lower inner peripheral edge thereof, the rotation of the rear wall corner arm 17 is restricted so as to reach the maximum pressing position of the rear wall corner pressing body 21. The corner portion of the nursery box configured to selectively fit the rotation regulating shaft 27 with the adjusting shaft cylinders 37 having different outer diameters to change the maximum pressing depth of the rear wall corner pressing member 21. Floor soil pressing device. 2. The frame 9 according to claim 1, wherein the frame 9 is fixed at a position above the transfer table 1, and a pair of left and right attachments are attached to the frame 9 via a link mechanism 12 so as to move up and down with respect to the frame 9. A plate 11 is provided, the rear wall corner arm 17 and the rotation restricting hole 28 are provided in the mounting plate 11, and the rear wall corner pressing device 7 is vertically adjustable with respect to the frame 9 by the height adjusting dial 14. Soil pressing device for the corners of the constructed nursery box. 3. The front wall corner arm 30 according to claim 1, wherein the rear wall corner arm 17 has a rear portion which is inclined obliquely backward and whose upper portion is attached by a shaft 31, and a lower portion of the front wall corner arm 30. A front wall corner pressing device 8 having a front wall corner pressing body 32 that presses the corner of the front wall 5 of the seedling raising box 2,
The engaging shaft 35 provided on the front wall corner arm 30 is engaged with the engagement elongated hole 34 of the position restricting body 33, and the end portion of the position restricting body 33 is provided on the rear wall corner arm 17 at a lower portion. A corner floor soil pressing device for a nursery box, which is fixed to the shaft 22 and provided with a spring 36 that narrows the gap between the engaging shaft 35 and the lower shaft 22. 4. A rear wall corner arm 17 whose mounting lower part is inclined obliquely rearward by a horizontal mounting shaft 18 at a position above a transfer table 1 for laterally transporting a nursery box 2, and the rear wall corner arm 1
A rear wall corner pressing member 21 for pressing a corner portion of the rear wall 4 of the seedling raising box 2 provided at the lower part of the rear seedling raising box 7, 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 the downward rotation when the rear wall corner pressing body 21 is at the maximum pressing position is provided, and is tilted obliquely rearward at the rear part of the rear wall corner arm 17. Axis 31 on top
And a front wall corner pressing body 32 that is provided below the front wall corner arm 30 and presses the corner of the front wall 5 of the seedling raising box 2. The front wall corner pressing device 8 is provided, the engagement elongated hole 34 of the position restricting body 33 is engaged with the engaging shaft 35 provided on the front wall corner arm 30, and the end of the position restricting body 33 is set to the above-mentioned position. A spring 36 that is fixed to the lower shaft 22 provided on the rear wall corner arm 17 and narrows the gap between the engagement shaft 35 and the lower shaft 22 is provided.
When the seedling raising box 2 is rotated by the forward movement of the seedling raising box 2, the front wall corner arm 30 is also configured to start rotating, and the rear wall corner arm 17 is provided with a horizontal rotation restricting shaft 27. The rotation restricting shaft 27 is inserted into a rotation restricting hole 28 formed on the side of the frame 9 provided on the transfer table 1, and the rotation restricting hole 28 is
When the rotation restricting shaft 27 contacts the upper inner peripheral edge, the rear wall corner pressing body 21 is set to the standby position, and when the rotation restricting shaft 27 contacts the lower inner peripheral edge, the rear wall corner pressing member 21 is pressed. Body 2
1, so that the rear wall corner arm 1 is located at the maximum pressing position 1.
The rotation restricting shaft 27
A corner floor soil pressing device for a nursery box configured to selectively fit adjustment shaft cylinders 37 having different outer diameters to change the maximum pressing depth of the rear wall corner pressing member 21. 5. The frame 9 according to claim 4, wherein the frame 9 is fixed at a position above the transfer table 1, and a pair of left and right attachments are attached to the frame 9 via a link mechanism 12 so as to move up and down with respect to the frame 9. A plate 11 is provided, the rear wall corner arm 17, the front wall corner arm 30 and the rotation restricting hole 28 are provided in the mounting plate 11, and the rear wall corner portion is pressed against the frame 9 by the height adjusting dial 14. A corner floor soil pressing device for a nursery box in which the device 7 and the front wall corner pressing device 8 are vertically adjustable.