JP2779970B2 - Corner floor soil pressing device in nursery box - Google Patents

Description

The present invention relates to a corner floor soil pressing device for a nursery box.

(Prior Art) JP-A-64-38942 and JP-A-60-1
In Japanese Patent No. 90244, a crushing roll is provided at a position above a transfer table for feeding a nursery box filled with floor soil, and a front side of the crushing roll is vertically moved integrally with the crushing roll to move the seedling. It describes a case in which a corner pressing body that presses the inside corner of the front wall of the box is provided.

In addition, Japanese Utility Model Application Laid-Open No. 64-38942 discloses a method in which a corner pressing body that moves up and down by a link mechanism is provided, and apart from the pressure-reducing roll, a rear wall inner corner of the seedling raising box is pressed. .

In addition, Japanese Unexamined Utility Model Publication No. 63-68750 discloses a method in which a corner pressing body that moves up and down by a link mechanism is provided to press the inside corner of the front wall of the seedling raising box separately from the repressing roll. ing.

Although not known in the prior art, Japanese Patent Application No. 63-333675 of the prior application
Japanese Patent Application Laid-Open No. H11-15064 proposes a method in which a corner pressing body is provided on a moving shaft that moves in a diagonal groove provided on the left and right sides, and separately from a pressure-reducing roll, presses the inside corner of the front wall of the seedling raising box.

(Problems to be Solved by the Invention) Japanese Utility Model Application Laid-Open No. 64-38942 and Japanese Utility Model Application Laid-Open No. 60-190244.
Japanese Patent Application Publication No. JP-A-2006-133125 has a problem in that it is a pressing body that moves up and down integrally with a pressure reduction roll.

In other words, the crushing roll presses the large granular mass (3 mm to 7 mm) protruding to the upper surface of the floor soil supplied to the seedling raising box to flatten it, so that all the grains that do not require crushing are 2 mm or less. Even in the case of very fine bed soil, the fill at the inner corner of the front wall of the nursery box cannot be flattened without crushing.

In particular, in the sowing apparatus for sowing, since grooves are formed by the setting rolls after the floor soil is supplied, pressure reduction by the pressure-reducing rolls is not performed. Therefore, a known example cannot be used. There is also a problem in that a dedicated corner floor soil pressing device provided with the above is required.

Moreover, what is described in the above-mentioned Japanese Utility Model Application Publication No. 64-38942 is to press the inside corner of the rear wall of the seedling raising box, and there is a problem that the inside corner of the front wall of the seedling raising box cannot be pressed. is there.

Further, the conventional one disclosed in Japanese Utility Model Laid-Open Publication No. 64-68750 has a problem that the configuration is complicated and the cost is increased because the corner pressing body which moves up and down by the link mechanism is provided. There is also a problem that the adjustment of the pressing depth is very troublesome.

Also, the one proposed in Japanese Patent Application No. 63-333675 has a configuration in which the moving shaft slides in an oblique groove provided on the left and right sides, so that the left and right sides of the moving shaft are accurately synchronized. There is a problem that the corner pressing body does not move well and does not operate well.

(Objects of the Invention) Therefore, the present invention flattens the fill at the corner inside the front wall of the seedling raising box independently of the suppression of the floor soil, and presses the corner floor soil of both the sowing device for sowing and the sowing device for row sowing. It can be used as a device.

(Means for Solving the Problems) Accordingly, the present invention relates to an apparatus having a transfer table 1 for feeding a nursery box 2 sideways and a floor soil supply device 5 provided above the transfer table 1, A rotary brush 8 for leveling the floor soil is provided on the lower side of the seedling box transfer direction of the supply device 5. Next to the rotary brush 8, the base is rotated to the transfer table 1 below the floor soil upper surface. A pair of rotating arms 11, 11 freely mounted
A pressing portion 14 for pressing the inner corner A of the front wall 16 of the seedling raising box 2 at the tip of the seedling raising box 2 and an inclined guide surface 15 which is inclined so as to become higher toward the rear portion connected to the rear edge of the pressing portion 14. This is a corner floor soil pressing device in a nursery box provided with the pressing body 13 fixed.

Further, in the present invention, a spring 17 for urging the rotating arms 11 to rotate downward and the pressing body 13 in contact with the upper surface side of the transfer table 1 are provided on the rotating arms 11 and 11. A screw shaft 20 in which the rotary brush 8 is held at the same level of the floor soil level.
This is a corner floor soil pressing device in the seedling raising box provided with.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a transfer table for feeding a nursery box 2 sideways. Reference numeral 4 denotes a transfer roll mounted on the floor for transferring the seedling raising box 2.

A floor soil supply device 5 is provided above the transfer table 1 on the starting end side. The floor soil supply device 5 is a known one. A floor soil supply hopper 6 is provided at an upper portion, and a floor soil feeding belt 7 is provided at a lower portion of the floor soil supply hopper 6.

The transfer table 1 at a position on the lower side in the transfer direction of the floor soil supply device 5
Is provided with a rotary brush 8. Although not shown, the rotary brush 8 is axially fixed to the tip of a pair of left and right arms, the base of the arm is rotatably mounted on the transfer table 1, and the floor soil in the seedling box 2 passing below. 9 is leveled.

On the lower side of the rotary brush 8, there is provided a corner pressing device 10 for pressing soil which cannot be removed by the rotary brush 8 at the inner corner A of the front wall 16 of the seedling raising box 2.

The bases of a pair of left and right rotating arms 11, 11 are rotatably mounted on the transfer table 1 (FIG. 2). Reference numeral 12 denotes a connecting rod for connecting the tips of the rotating arms 11 and 11, which are formed integrally with the rotating arms 11 and 11 by bending a shaft rod into a U-shape. Good).

The connecting rod 12 is provided with a left and right corner pressing body 13 which rotates vertically in an arc shape by the rotation of the circuit arms 11,11.

The cross section of the corner pressing body 13 is formed in the shape of a deformed square tube, and the inner surface of the square tube is fixed to the connecting rod 12.

The lower front surface of the corner pressing body 13 forms a substantially horizontal pressing portion 14 over the entire width in the left-right direction, and the rear edge of the pressing portion 14 has an inclined guide surface that is inclined so as to become higher toward the rear. Fifteen
Are linked (FIG. 9). The inclined guide surface 15 is formed to have an inclination angle such that when the upper edge of the front wall 16 of the seedling raising box 2 comes into contact with the seedling raising box 2 and moves forward, the pressing portion 14 is once moved upward.

A spring 17 for urging the pressing portion 14 to be constantly rotated downward through the connecting rod 12 is attached to the base side of the rotating arms 11 and 11 (FIG. 2).

The pressing portion 14 and the inclined guide surface 15 are moved downward by the elasticity of the spring 17 to push the corner A of the seedling raising box 2 when the seedling raising box 2 passes below.
The left and right widths are slightly smaller than the inner widths of the holes.

Thus, the outer connecting rod to which the corner pressing body 13 is fixed
At the left and right ends of 12, fix horizontal mounting plates 19, 19,
The upper and lower intermediate portions of the vertical screw shafts 20, 20 are screwed to the mounting plates 19, 19.

Adjustment dials 21, 21 are fixed to the upper ends of the screw shafts 20, 20, and pressing depth adjusting plates 22, 22 are provided below the screw shafts 20, 20, respectively.

The bases of the pressing depth adjusting plates 22 and 22 are pivotally mounted on the upper surface of the transfer table 1 by a longitudinal axis 23 so as to be rotatable in the left-right direction. A step portion 24 higher than the upper surfaces of the adjustment plates 22 and 22 is provided.

The screw shaft 20, the adjusting dial 21, and the pressing depth adjusting plate 22 form a pressing depth adjusting device 25.

The pressing depth adjusting device 25 lifts the corner pressing body 13 and once puts the lower end of the screw shaft 20 on the step portion 24 of the pressing depth adjusting plate 22, and in this state, rotates the adjusting dial 21 (the (FIGS. 3 and 4), the lower surface of the pressing portion 14 is brought into close contact with the upper surface of the front wall 16 of the seedling raising box 2, and then the pressing depth adjusting plate 22 is turned sideways to lower the lower end of the screw shaft 20. Is brought into contact with the upper surface of the pressing depth adjusting plate 22 (FIGS. 5 and 6), so that the dividing soil 9 having the height a of the step portion 24 is pressed.

In a state where the lower end of the screw shaft 20 is in contact with the upper surface of the transfer table 1 (FIG. 7), the adjusting dial 21 is rotated to press the pressing portion.
When the lower surface of the screw 14 is brought into close contact with the upper surface of the front wall 16 of the seedling raising box 2 and the lower end of the screw shaft 20 is brought into contact with the upper surface of the transfer table 1 by rotating the pressing depth adjusting plate 22, Of the height a + the depth b of the pressing depth adjusting plate 22.

In this case, by forming a plurality of steps 24 of the pressing depth adjusting plate 22 and changing the height of the steps 24, it is natural that the depth at which the pressing section 14 descends can be changed. However, the height of the step portion 24 is made equal to the depth leveled by the rotary brush 8.

Although the corner pressing device 10 is mounted on an arm separate from the arm of the rotary brush 8, it may be mounted on the arm of the rotary brush 8.

Further, in the case of the seeding apparatus for strip sowing, it is more effective if the pressing portion 14 is formed with projections at predetermined intervals.

The transfer table 1 on the lower side of the corner pressing device 10 is provided with a pressure reducing roll 26. When the bed soil 9 having a large-grained soil mass is filled in the nursery box 2, the pressure-reducing roll 26 pushes the soil mass to level the upper surface of the floor soil 9. Therefore, the pressure-reducing roll 26 is not necessary when using very fine-grained floor soil 9 or when sowing, and is not used after being moved up by a moving-up holding device (not shown).

A seed supply device 27, a watering device, a soil covering supply device 28, and the like are provided in front of the pressure reduction roll 26.

Further, in the seeding apparatus for strip sowing,
Is provided with a rolling roll.

The corner pressing device 10 is described as being incorporated in a seeding device provided with a floor soil supply device 5, a seed supply device 27, a watering device, a cover soil supply device 28, and the like. It is sufficient that only the rotary brush 8 is provided on the transfer table 1 capable of laterally transporting the rotary brush 2, and the rotary brush 8 is provided next to the rotary brush 8.
The floor soil supply device 5 is also used as the cover soil supply device 28,
It is optional to provide it in front of the seed supply device 27.

(Operation) Next, the operation will be described.

Since the present invention is configured as described above, when the seedling box 2 is continuously supplied to the transfer table 1, the seedling box 2 is continuously traversed without any gap, and the floor soil supply device 5 supplies the floor soil 9, It is leveled by the rotary brush 8.

Since the supply of the floor soil 9 is not a method of supplying a small amount and replenishing it, but a method of supplying a large amount and removing excess material, the floor soil 9 is rotated around the inner corner A of the front wall 16 of the seedling raising box 2. Extra soil that cannot be removed with the brush 8 remains.

In the present invention, a corner pressing device 10 is provided on the front side of the rotary brush 8.
The corner pressing device 10 is provided with a left-right direction corner pressing body 13 at the tip of the rotating arm 11, 11, and the corner pressing body
The front surface of the lower surface of 13 is formed in a substantially horizontal pressing portion 14, and the rear edge of the pressing portion 14 is formed with an inclined guide surface 15 which is inclined so as to become higher toward the rear. When the upper edge of the front wall 16 contacts the inclined guide surface 15 and moves forward, the entire corner pressing body 13 is guided by the inclined guide surface 15 and moves upward once (FIG. 10).

Since a spring 17 for urging the corner pressing body 13 to always rotate downward is attached to the rotating arms 11, 11, the sliding arm 11 is in front of the seedling raising box 2 while being in sliding contact with the lower surface of the pressing part 14. Wall 16
Is further advanced, and passes below the pressing portion 14, the pressing portion
The lower surface of 14 is lowered to press the soil at the corner A to make it flat (FIG. 13).

The lower surface of the pressing portion 14 descends in an arc shape centered on the bases of the rotating arms 11, 11, and the front end of the pressing portion 14 comes into contact with the inner surface of the front wall 16 of the seedling raising box 1 (see FIG. 12), the seedling raising box 2 is lowered by advancing, and the soil at the corner A is pressed and flattened.

In this case, since the corner pressing device 10 is provided on the front side of the rotary brush 8, the inside corner A of the front wall 16 of the seedling raising box 2 is flattened regardless of the suppression by the suppression roller 26.

That is, when the seedling box 2 is filled with the fine bed soil 9,
In particular, in the case of seeding, the pressure is not suppressed by the pressure-reducing roll 26, but since the soil in the corner A has already been pressed and flattened by the corner pressing device 10, the groove can be sowed by the seeding or the lined roll as it is. And sowing and sowing are also used.

The mounting plate 1 is provided at both left and right ends of the connecting rod 12.
9 and 19 are fixed, and a vertical screw shaft 2 is attached to the mounting plates 19 and 19.
When the lower surface of the pressing portion 14 is lowered to the maximum, the lower ends of the screw shafts 20 and 20 are pressed by the pressing depth adjusting plates 22 and 22 provided below the screw shafts 20 and 20. Abut on the upper surface of
The lowering of the pressing portion 14 is stopped.

That is, an adjustment dial 21 is provided at the upper end of the screw shafts 20, 20.
21 is fixed, and a step portion is provided on the tip side of the pressing depth adjusting plates 22 and 22.
Since 24 is provided, the entire corner pressing body 13 is manually lifted against the elasticity of the spring 17, and the lower end of the screw shaft 20 is placed on the step portion 24 of the pressing depth adjusting plate 22, Next, the adjustment dial 21 is rotated to bring the lower surface of the pressing portion 14 into close contact with the upper surface of the front wall 16 of the seedling raising box 2. Next, the pressing depth adjusting plate 22 is rotated to lower the lower end of the screw shaft 20 to the pressing depth. When brought into contact with the upper surface of the adjusting plate 22, the corner pressing body 13 is stepped from the upper end of the front wall 16 of the seedling raising box 2 to the stepped portion 24.
Is lowered by the height a, and the floor soil 9 is pressed.

Further, with the lower end of the screw shaft 20 abutting on the upper surface of the transfer table 1, the adjustment dial 21 is rotated, and the lower surface of the pressing portion 14 is brought into close contact with the upper surface of the front wall 16 of the seedling raising box 2 and adjusted. afterwards,
When the lower end of the screw shaft 20 is brought into contact with the upper surface of the transfer table 1 by rotating the pressing depth adjusting plate 22, the pressing portion 14 becomes the height a + of the step portion 24.
The floor soil 9 is pressed down by the thickness b of the pressing depth adjusting plate 22.

However, since the pressure-suppressing rolls 26 are provided on the transfer table 1 on the front side of the corner pressing device 10, when the floor soil 9 containing coarse-grained soil particles is used, the pressure-suppressing rolls 26 are used to reduce the pressure on the floor. The granular soil particles protruding from the upper surface of the soil are pushed in and leveled.
The seeding operation is completed by supplying the soil with 28.

(Effects) JP-A-64-38942 and JP-A-60-1
Japanese Patent No. 90244 discloses that a crushing roll is provided at a position above a transfer table for feeding a nursery box filled on the floor, and a front side of the crushing roll is moved up and down integrally with the crushing roll to move the seedling box. Is provided with a corner pressing body for pressing the inside corner of the front wall. There is a problem in that the known one is a pressing body that moves up and down integrally with the pressure reducing roll.

In other words, since the suppression rolls press the large-grained granular mass (3 mm to 7 mm) protruding to the upper surface of the floor soil supplied to the seedling raising box and flatten it, all the particles are very fine floor soil of 2 mm or less. In such a case, there is no need for suppression, and even in the case of such floor soil, there is a problem that the fill at the corner inside the front wall of the nursery box cannot be flattened without suppression.

In particular, in the sowing apparatus for sowing, since the grooves are formed by the assembling rolls after the floor soil is supplied, the crushing rolls are not used. Therefore, a known example cannot be used. There is also a problem in that a dedicated corner floor soil pressing device provided with the above is required.

In addition, Japanese Utility Model Application Laid-Open No. 64-38942 and Japanese Utility Model Application Laid-Open
No. 8750 discloses that a corner pressing body that moves up and down by a link mechanism is provided and, apart from the repressing roll, presses the rear wall inside corner of the seedling box, There is a problem that it is not possible to press the inside corner of the front wall of the seedling raising box because it is to press the corner, and since the link mechanism provides a corner pressing body that moves up and down,
There is a problem that the configuration is complicated and the cost is high. There is also a problem that the adjustment of the pressing depth is very troublesome.

In addition, although not known in the past, Japanese Patent Application No. 63-333675,
In the issue, there is proposed a method in which a corner pressing body is provided on a moving shaft that moves in a diagonal groove provided on the left and right sides, and separately from the pressure-reducing roll, presses the inside corner of the front wall of the seedling raising box. ,
Because the moving shaft slides in the diagonal groove provided on the left and right sides, the left and right sides of the moving shaft do not move accurately and synchronously, and the corner pressing body may be slanted and does not work well. There are issues.

However, according to the present invention, the moving table 1 for feeding the nursery box 2 sideways is provided.
And a floor soil supply device 5 provided at a position above the transfer table 1, wherein a rotary brush 8 for leveling the floor soil is provided on the lower side of the seedling box transfer direction of the floor soil supply device 5. ,
Next to the rotary brush 8, a pair of rotary arms whose bases are rotatably mounted on the transfer table 1 below the upper surface of the floor soil.
A pressing portion 14 for pressing the inner corner A of the front wall 16 of the seedling raising box 2 at the tip of the seedling box 2, and an inclined guide surface which is inclined so as to become higher as it goes rearward and is connected to the rear edge of the pressing portion 14. Since the pressing body 13 constituted by 15 is fixedly provided as a corner floor soil pressing device in a nursery box provided, the seedling raising box is independent of the suppression of the floor soil 9 without using a complicated link mechanism. 2
Since the embankment at the inside corner A of the front wall 16 is flattened, the range of use such as being able to be used for both the sowing device for sowing and the sowing device for row sowing is widened.

Further, in the present invention, a spring 17 for urging the rotating arms 11 to rotate downward and the pressing body 13 in contact with the upper surface side of the transfer table 1 are provided on the rotating arms 11 and 11. A screw shaft in which the rotary brush 8 is held at the level of the floor surface leveled
Since it is a corner floor soil pressing device in a nursery box provided with 20, an effect that the pressing depth can be adjusted by simply rotating the rotating arm 11 and changing the height of the pressing body 13 can be achieved. Play.

[Brief description of the drawings]

FIG. 1 is a side view of the whole sowing apparatus for sowing and sowing, FIG. 2 is a perspective view of a corner pressing device, FIGS. 3 to 8 are adjustment state diagrams of the corner pressing device, and FIGS. FIG. 4 is an operation state diagram of the corner pressing device. DESCRIPTION OF SYMBOLS 1... Transfer table 2... Nursery box 3... Support legs 4... Transfer roll 5... Floor soil supply device 6. Floor soil supply hopper 7. 8 ... Rotating leveling brush, 9
…… floor soil, 10 …… corner pressing device, 11 …… arm, 12 ……
Connecting rod, 13 corner pressing body, 14 pressing part, 15 inclined guide surface, 16 front wall, 17 spring, 19 mounting plate, 20
... Screw shaft, 21 ... Adjustment dial, 22 ... Pressing depth adjusting plate, 23 ... Vertical axis, 24 ... Stepped portion, 25 ... Pressing depth adjusting device, 26 ... Squeezing roll, 27 ... Seed Supply device, 28 ... Soil supply device.

Claims (2)

(57) [Claims] An apparatus having a transfer table for feeding a nursery box horizontally and a floor soil supply device provided above the transfer table, wherein the floor soil supply apparatus has a lower position in a seedling box transfer direction. A rotary brush 8 for leveling the floor is provided on the side, and a pair of rotary arms each having a base rotatably mounted on the transfer table 1 below the upper surface of the floor soil are provided next to the rotary brush 8. A pressing portion for pressing the inner corner A of the front wall 16 of the seedling raising box 2 at the tip of 11, 11
A pressing body constituted by 14 and an inclined guide surface 15 which is inclined so as to become higher as it reaches the rear connected to the rear edge of the pressing portion 14
Corner soil pressing device in nursery box provided with 13 fixed. 2. The apparatus according to claim 1, wherein said pivoting arms are provided with a spring for urging said pivoting arm to pivot downwardly and an upper surface of said transfer table. A corner floor soil pressing device in a nursery box provided with a screw shaft 20 for contacting and holding the pressing body 13 at the level of the floor soil upper surface leveled by the rotary brush 8.