JP3082033B2 - Drilling machine for paper pot seedlings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drilling machine suitable for drilling holes for planting paper pot seedlings from above a multi-sheet.

[0002]

2. Description of the Related Art Conventionally, when planting crops such as leaf tobacco or tea paper pot seedlings, workers mainly plant biennial seedlings one by one. Have been.
This seedling raising method has a long seedling raising period, has exposed roots, is planted with seedy seedlings, is difficult to mechanize, and has poor rooting.

[0003]

Recently, however, a combination of a paper pot raising method for shortening the period of raising seedlings and improving survival has been introduced, and a multi-sheet cultivation method for reducing weeding work has been introduced. According to this method, a seedling obtained by a paper pot seedling raising method is planted in a hole for multi-sheet cultivation. However, this method involves digging the seedling planting holes manually from above the multi-sheet, which requires a great deal of effort and not only causes variations in the size of the holes, but also causes bulging of the multi-sheet and soil when drilling. There is a problem that paper pot seedlings are easily damaged and growth is hindered. SUMMARY OF THE INVENTION In view of the problems of the prior art, the present invention makes it possible to efficiently and easily dig a predetermined hole, eliminate swelling of the multi-sheet and unevenness of the soil, and improve the growth of the paper pot seedling. It provides a hole drilling machine.

[0004]

SUMMARY OF THE INVENTION Therefore , the paper according to the present invention is provided.
Potto seedling planting hole digging machine, the rotary blade is supported to be vertically movable by a supporting member, a driving means for rotationally driving the rotary blade, and a cover provided on the outer periphery of the rotary blade, 該Ka
And a sheet pressing member provided on the inner peripheral side of the bar .

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A driving means is provided so as to be able to travel with respect to the ground in order to easily move the position during drilling work.
In addition, a stopper is provided between the support member and the rotary blade, which regulates a descending distance of the rotary blade with respect to the support member. Further, by providing a position return means between the support member and the rotary blade, the lowered rotary blade can be automatically returned to the original raised position.

[0006]

In order to dig a hole with this machine, a rotary blade is set on the multi-sheet, and the rotary blade is driven to rotate about a vertical axis by a driving means. Then, the rotary blade penetrates the multi-sheet and descends while digging the soil, thereby digging a hole of a predetermined size in a short time. The excavated soil is placed around the planting hole and used as it is for backfilling. With this machine, by regulating the vertical movement range of the rotary blade, the depth of the planting hole can be set to a constant value, eliminating multi-sheet swelling and dents during planting work, reducing wobbling of paper pot seedlings, good We can expect great growth. Also, since there is no flapping of the multi-sheet due to the inflow of wind from the planting holes, it helps to prevent the seedlings from falling down, prevents drying and keeps the temperature warm, and improves the survival.

For example, in the planting operation of a paper pot seedling using a manual leaf tobacco planting machine, the conventional working time was 5 to 6 hours / 10a, but the working time was reduced to 2 hours by partial mechanization of the planting work by this machine. / 10a. In seedling cultivation of agricultural products, especially leaf tobacco and tea, etc., it is possible to shorten the time until adultation, introduce new varieties, and improve productivity by planting new plants and replanting. Can contribute to the spread.

An embodiment of the present invention will be described below based on an embodiment shown in the drawings. FIG. 1 is a perspective view showing the entire configuration of a paper pot seedling planting hole drilling machine according to one embodiment of the present invention, and FIG. 2 is a perspective view of a main part showing the structure of a drill section according to one embodiment.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, the overall structure of this embodiment includes a drill unit 10 for digging up soil on a farmland, a power unit 30 for supplying power to the drill unit 10 via a power transmission unit 20, and And a traveling unit 40 for mounting and moving the power unit 30.
As shown in FIG. 2, the drill unit 10 has a holding shaft 1 extending in a vertical direction, and a rotary blade 2 is rotatably held at a lower end 1a thereof. Here, the cutting edge 2a of the rotary blade 2 is formed in a screw shape having a diameter of 6.5 cm and a pitch of 8 cm.
Positioning of 0 and drilling are easy. An intermediate portion of the holding shaft 1 is vertically movably fitted to a support member 3 serving as a cylindrical guide means, and a cross-shaped grip portion 4 is provided at an upper end of the holding shaft 1. Further, a stopper 5 for setting a hole depth is provided at a predetermined height position of the holding shaft 1 in order to regulate the maximum descending distance of the holding shaft 1 with respect to the support member 3, that is, the maximum depth of the hole. The stopper 5 can be engaged with the upper surface of the support member 3.

A pair of support frames 6 extending to the ground are provided on both left and right sides of the support member 3, and a pair of cylindrical members 7 are fitted in an intermediate portion of the pair of support frames 6 so as to be vertically movable. The cylindrical member 7 is fixed to the lower connecting portion 1b of the holding shaft 1 via an L-shaped frame 7a, and a return spring 8 is mounted between the L-shaped frame 7a and the support frame 6. At the lower end of the support frame 6, an annular member (sheet pressing member) 9 surrounding the cutting edge 2a of the rotary blade 2, and a cylindrical cover 1 surrounding the annular member 9 concentrically for preventing soil diffusion.
1 is connected and fixed. The power unit 30 includes a small engine (2.5PS, using mixed oil) 32 mounted on a frame 31. The output of the power unit 30 is reduced by a pulley 33, a V-belt 34, and a pulley 35 to transmit power. Part 20
Is sent to the input end. The power transmission unit 20 includes an inner shaft and an outer flexible tube. The output end of the power transmission unit 20 reaches the lower connecting portion 1 b of the holding shaft 1 and is rotatably connected to the upper end of the rotary blade 2. Only the base end portion of the power transmission unit 20 is fixed to the bow-shaped frame 21, and the remaining two-thirds can be freely moved, so that the moving operation of the power transmission unit 20 is facilitated. An engine throttle lever 22 for adjusting the number of revolutions is mounted near the arc-shaped frame 21 of the power transmission unit 20, and a handle 23 and an on / off lever 24 for moving operation are mounted near the drill unit 10 of the power transmission unit 20. Have been. By operating the on / off lever 24, the power transmission unit 20 and the drill unit 1
It is possible to switch on / off the power transmission (tension) between zero, that is, switch the rotation of the rotary blade 2 on and off.

[0011] The traveling section 40 includes a uniaxial rear two-wheel section 41 and 3.
It has a front one-wheel portion 42 which can be rotated by 60 degrees, and these are connected to each other by the frame-shaped frame 31 and the bow-shaped frame 21, thereby improving the mobility and stability of the traveling portion 40. The left and right two-wheel portions 41 are independently slidable with respect to the shaft 43.

The operation of this embodiment will be described. First, the traveling unit 40 is moved to a position corresponding to the multi-sheet MS. Next, the vehicle width of the two-wheel portion 41 is appropriately adjusted to be larger than the width dimension of the multi-seat MS. Thereby, even if the traveling unit 40 is moved along the length direction of the multi-seat MS thereafter, the two-wheel unit 41 is kept from riding on the multi-seat MS. Thereafter, the operator holds the grip portion 4 to set the drill portion 10 at a predetermined position on the multi-sheet MS, drives the engine 32, and rotates the holding shaft 1 by operating the on / off lever 24. . Then, with the rotation of the rotary blade 2, the cutting edge 2a is moved to the multi-sheet M
S is drilled through the hole HL for the seedling of the paper pot while lifting the soil SL under the ground through S. During drilling, the annular member 9 presses the multi-sheet MS to prevent swelling, while the cylindrical cover 11 prevents diffusion of the soil SL to the surroundings.

In this way, the planting hole HL is dug to a certain depth, and when the holding shaft 1 is lowered to a position where the stopper 5 and the support member 3 come into contact with each other, the rotating blade 2 is turned by the cutting operation of the on / off lever 24. Turn off the rotation of. Then, the rotary blade 2 is raised to the original height above the ground by the force of the return spring 8. As a result, a planting hole HL having a predetermined size and depth is dug. After excavation, planting hole HL
The soil SL dug up around the area like a donut. Thereafter, in order to perform the next excavation, the traveling unit 40 is moved by a predetermined distance along the length direction of the multi-sheet MS, and the drill unit 10 is set at a predetermined position of the multi-sheet MS. Similarly, planting holes HL having a constant depth may be sequentially dug.

The present invention is not limited to this example, and the stopper 5 for setting the hole depth may be provided so as to be vertically adjustable with respect to the holding shaft 1. May be provided between the holding shaft 1 and the support member 3. Further, as the elastic return means between the L-shaped frame 7a and the support frame 6, a rubber or a compression cylinder may be mounted depending on design conditions.

[0015]

The present invention is configured as described above.
It has the following excellent effects. (1) Place the planting hole of the paper pot seedling on the multi sheet
Can be automatically excavated with mechanical power from
And labor can be reduced. (2) Variation in the size of planting holes can be eliminated
You. (3) A cover is provided around the rotating blade, so it can be dug up
Excavated soil is dug around the planting hole for backfilling
It can be used as it is as soil. (4) The cover and the sheet retainer provided on the inner peripheral side of the cover
Depending on the material, the bulge of the multi sheet and soil when digging
Prevents the unevenness of the paper pot, and the falling and drying of the paper pot seedling
And thus improve the growth of paper pot seedlings
Can be

[Brief description of the drawings]

FIG. 1 is a perspective view showing the entire configuration of a paper pot seedling set planting excavator according to one embodiment of the present invention.

FIG. 2 is a perspective view of a main part showing a structure of a drill unit according to one embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Holding shaft 1a Lower end part 1b Lower connecting part 2 Rotating blade 2a Blade tip part 3 Support member 4 Grip part 5 Stopper 6 Support frame 7 Cylindrical member 7a L-shaped frame 8 Return spring 9 Ring member (sheet holding member) 10 Drill part 11 Cylindrical cover 20 Power transmission unit 21 Arched frame 22 Engine throttle lever 23 Handle 24 On / off lever 30 Power unit 31 Frame-shaped frame 32 Engine (drive means) 33 Pulley 34 V-belt 35 Pulley 40 Running unit 41 Two-wheel unit 42 One-wheel unit 43 Axis MS Multi sheet HL Planting hole SL Soil

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-7-107813 (JP, A) Japanese Utility Model 57-23109 (JP, U) Agricultural Mutual Aid Newspaper (March 19, 1997) National Agricultural Mutual Aid Association (58) Fields investigated (Int. Cl. ⁷ , DB name) A01C 5/04 A01G 13/00

Claims (1)

(57) [Claims] 1. A and rotary blade is supported to be vertically movable by a supporting member, a driving means for rotationally driving the rotary blade, and a cover provided on the outer periphery of the rotary blade, set on the inner peripheral side of the cover
A hole drilling machine for planting seedlings in a paper pot, comprising a sheet holding member that has been cut.