JPH0750931A - Soil leveler - Google Patents

Abstract

PURPOSE:To provide a soil leveler, capable of performing the height regulation of pressing members for pressing raised parts of soil formed near walls in the front and rear of a nursery box from the upper part and leveling the raised parts according to one-touch operation. CONSTITUTION:This soil leveler is provided by installing a pair of left and right mounting plates 8 on the upper sides of a transfer passage for each nursery box 2 transferred in the front and rear directions, supporting the mounting plates 8 on a supporting frame 7 so as to freely and vertically move, supporting pressing members (18F) and (18R) for pressing raised parts (B) of soil formed near walls in the front and rear from the upper part in a nursery box 2 and leveling the soil, connecting the left and right mounting plates 8 with a rod body 12, fixing supporting plates 15 for engaging with the rod body 12 and regulating the downward movement of the mounting plates 8 to the frame 7, forming plural recessed parts 16 capable of detachably fitting the rod body 12 from the upper side thereto, selectively fitting the rod body 12 to the recessed parts and thereby stepwise regulating the vertical positions of the mounting plates 8 in the upper parts of the supporting plates 15 and installing springs 11 for urging the mounting plates 8 downward.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soil leveling device for leveling a wall portion of soil supplied to a nursery box.

[0002]

2. Description of the Related Art Conventionally, bed soil is supplied to a nursery box and watered,
For sowing machines that cover soil after sowing, or floor soil-inserting machines that supply only soil, rotate the soil-supplied device that supplies or soils soil in the nursery box to smooth the top surface of the soil that has been supplied. A brush is provided. The rotary brush is driven to rotate about the left and right axes to smooth the upper surface of the nursery box transferred in the front-rear direction, so that a raised portion of soil is formed on the front and rear walls in the nursery box. Japanese Patent Application No. 1-213345 provides a soil leveling device for pressing the rising portion of the soil to level the top surface of the soil.

By the way, the rotary brush is capable of adjusting the depth of the bed soil according to the height (depth) of the seedling raising box of each species or the seeding conditions, and the soil filling device is used for supplying the soil bed. The height can be adjusted so that it can be used for both soil and soil, and the depth of soil can be adjusted. Therefore,
Corresponding to this, the pressing member for pressing the rising portion of the soil of the soil leveling device must be adjustable in height, but in the Japanese Patent Application No. 1-213345,
A pair of left and right mounting plates are provided on the upper side of the transfer path of the nursery box transferred in the front-rear direction, and these mounting plates are supported movably up and down on the support frame. Supports a pressing member that presses the uneven portion of the soil formed on the wall from above to make it even, and projects screw rods upward from each pressing member to support the upper parts of the left and right screw rods, respectively. It has an adjusting body that penetrates through the upper wall of the frame and is screwed into each screw rod from the upper end side.The mounting plate is moved up and down by screwing and retreating this adjusting body to increase the height of the pressing member. Is configured to adjust.

[0004]

In the above-mentioned prior art, since the adjusting body must be screwed to adjust the height of the pressing member, it cannot be quickly adjusted to a predetermined height. In addition, the height adjustment work must be performed separately on the left and right sides, and there is a problem in that the workability of the height adjustment work of the pressing member is poor.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a soil leveling device that allows one-touch adjustment of the height of a pressing member.

[0006]

The technical means taken by the present invention to achieve the above object is to install a pair of left and right mounting plates 8 on the upper side of the transfer path of the nursery box 2 transferred in the front-rear direction. The mounting plate 8 is supported by the support frame 7 so as to be vertically movable, and the rising portion B of the soil formed on the front and rear walls of the seedling raising box 2 is pressed from above between the left and right mounting plates 8. In the soil leveling device supporting the pressing members 18F and 18R for leveling, the left and right mounting plates 8 are connected by a rod 12, and the supporting frame 7 is engaged with the rod 12 to move the mounting plate 8 downward. The supporting plate 15 for restricting the mounting plate 8 is fixed, and the rod 12 is removably fitted to the upper portion of the supporting plate 15 from above and the rod 12 is selectively fitted to the mounting plate 8.
The point is that a plurality of recesses 16 for adjusting the upper and lower positions of the above are formed, and a spring 11 for urging the mounting plate 8 downward is provided.

[0007]

The height of the pressing member is adjusted by grasping the rod and lifting it against the urging force of the spring to disengage it from the recess of the support plate, selecting another recess and lowering the rod to fit into the selected recess. The height of the pressing member can be adjusted with one touch.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2, 1 indicates a soil leveling device,
The soil leveling device 1 is mounted on a transfer device 3 for mounting and transferring the seedling raising box 2 so as to straddle the transfer path of the seedling raising box 2. Further, this soil leveling device 1 supplies the bed soil to the nursery box 2 (or covers it with soil), and at the front side in the nursery box transfer direction of a soil inserting device (not shown) in which the upper surface of the soil is smoothed by a rotating brush. Will be placed.

In the transfer device 3, a large number of rotating shafts 5 are supported at equal intervals in the longitudinal direction between a pair of left and right frames 4, and a pair of left and right rollers 6 are fixedly mounted on each rotating shaft 5 for each rotation. The shaft 5 is interlockingly connected by a sprocket 6 and a chain, etc., and is configured to be rotationally driven around the shaft center by a motor (not shown), so that the nursery box 2 placed on the roller 6 is driven at a constant speed. It can be transferred in the direction A shown in FIG.

The soil leveling device 1 is provided with a pair of support frames 7 made of plate material which are erected on the left and right frames 4 of the transfer device 3, and the support frames 7 are formed in a U-shaped cross section. Mounting plates 8 each having an inverted L shape in front view are arranged on the inner sides of the respective support frames 7 in the left-right direction. Rods 9 are fixed to the respective mounting plates 8 so as to project upward. A guide cylinder 10 fixed to the upper surface of the upper wall 7a is inserted while penetrating the wall 9a. A coil spring 11 which is interposed in a compressed state between the mounting plate 8 and the upper wall 7a of the support frame 7 is fitted onto each rod 9 to urge the mounting plate 8 downward.

Both mounting plates 8 are received by a rod 12 formed so as to straddle the left and right support frames 7, and their downward movement is restricted. This rod 12
Is a side rod portion 12a located at an upper portion on the outer side in the left-right direction of each support frame 7, an upper rod portion 12b connecting the upper ends of the left and right side rod portions 12a, and a left-right inward direction from the lower end of each side rod portion 12a. And a hooking portion 12c that extends toward the support frame 7 and contacts the lower end of the mounting plate 8.

The left and right side rods 12a are made extendable and contractible by a turnbuckle mechanism 13, and the center side of the upper rod 12b in the left-right direction is a grip. Further, the hooking portion insertion hole 14 of the support frame 7 is formed as a long hole that is long in the vertical direction so as to allow the hooking portion 12c to move up and down. A support plate 15 is fixed to the upper wall 7a of each of the left and right support frames 7 so as to project upward, and an arc-shaped recess 1 is formed at the upper end of the support plate 15.
A large number of 6 are formed in the front-rear direction, each recess 16 is formed to be open upward, and the left and right outer side portions of the upper rod portion 12b of the rod 12 can be fitted from above.

A pair of front and rear horizontal shafts 17 is provided between the left and right mounting plates 8.
F and 17R are supported, and the horizontal axes 17F and 17R before and after this are
Front and rear pressing members 18F and 18R having an L-shaped side cross section are pivotally supported, and the positions of these front and rear pressing members 18F and 18R are held by coil springs 19 arranged on both left and right sides. The support frame 7 is inserted through the left and right ends of the front and rear horizontal shafts 17F, 17R, and the insertion holes 20 are elongated holes in the up-down direction to restrict the forward-backward movement of the left-right mounting plate 8 and allow the up-down movement. ing.

The front pressing member 18F has a stopper piece 22 that abuts a rod 21 provided between the left and right support frames 7 at an upper portion thereof, and a horizontal bar 23 at an intermediate portion. A tension coil spring 2 is provided between the horizontal bar 23 and the rear horizontal shaft 17R.
4 is stretched. The rear pressing member 18R is provided with a horizontal bar 25 in the middle thereof, and the horizontal bar 25 and the horizontal bar 2 of the front pressing member 18F.
A tension coil spring 26 is stretched between it and the interlocking link 27.

Then, the bed soil or the like is supplied and the seedling raising box 2 whose upper surface has been smoothed by a rotating brush is transferred to the soil leveling device 1, and the rear wall of the leading side seedling raising box 2 has a front pressing member. When contacting the lower part of 18F, the front pressing member 18F swings forward around the front horizontal axis 17F, and the rising portion B of the soil near the rear wall of the preceding seedling raising box 2 is pressed down by the lower end of the front pressing member 18F. The rocking operation of the front pressing member 18F causes the rear pressing member 18R to rock forward, and the lower end of the rear pressing member 18R causes the soil rising portion B near the front wall of the rearing side nursery box 2 to be raised.
Can be pressed down.

In the above construction, the upper rod 12 of the rod 12 is
The height of the support plate 8 can be changed stepwise by adjusting b from the one end to the other end of the recess 16 in sequence, whereby the front-rear pressing member 18F,
The height of 18R is adjusted. In addition, the front and rear pressing member 18
The fine adjustment of the height of F and 18R is performed by the turnbuckle mechanism 1
It does by 3.

[0017]

According to the present invention, the left and right mounting plates for supporting the pressing member for pressing the rising portions of the soil formed on the front and rear walls in the nursery box from above to connect them with a rod. Then
A support plate that engages with the rod and restricts the downward movement of the mounting plate is fixed to a support frame, and the rod is fitted into the upper part of the support plate so that the rod can be fitted and removed from above, and the rod is selectively By forming a plurality of recesses that adjust the vertical position of the mounting plate stepwise by fitting, and equipped with a spring that urges the mounting plate downward, the height of the pressing member can be adjusted by grasping the rod body. It is lifted against the urging force of the spring to disengage it from the recess of the support plate, and another recess is selected and the rod is lowered to fit into the selected recess.The height of the rotating brush is adjusted. It can be done by one-touch operation of raising and lowering.

Further, since the spring for urging the mounting plate supporting the pressing member downward is provided, even if the rod is fitted into the concave portion from above, the rod can be easily removed from the concave portion. Never leave.

[Brief description of drawings]

FIG. 1 is an overall side sectional view.

FIG. 2 is an overall front sectional view.

[Explanation of symbols]

 2 Nursery box 7 Support frame 8 Mounting plate 11 Coil spring 12 Rod 15 Support plate 16 Recessed portion 18F Holding member 18R Holding member B Soil rising part

Claims (1)

[Claims] 1. A pair of left and right mounting plates (8) are provided above a transfer path of a nursery box (2) transferred in the front-rear direction, and these mounting plates (8) can be moved up and down on a support frame (7). A pressing member (18F) that supports the above-mentioned structure and that evenly presses the rising portion (B) of soil formed between the front and rear walls of the seedling raising box (2) between the left and right mounting plates (8) from above. ), (18
In the soil leveling device supporting R), the left and right mounting plates (8) are connected by a rod (12), and the supporting plate (7) is engaged with the rod (12) to attach the mounting plate (8). Fix the support plate (15) that restricts the downward movement of
The rod (12) is removably fitted to the upper portion of the support plate (15) from above and the rod (12) is selectively fitted so that the mounting plate (8) is moved vertically. A soil leveling device comprising a plurality of recesses (16) to be adjusted to each other and a spring (11) for urging the mounting plate (8) downward.