KR200346863Y1 - Seeding machine - Google Patents

Abstract

The seeding machine according to the present invention converts the rotational motion generated by the rotation of the disc into a linear motion acting up and down on the ground to form a valley having a certain interval on the ground, and the seed is automatically sprayed on the valley so that the movement is It is easy, convenient to operate, and there is an advantage that the seeding operation can be made simply.

Description

Seeder machine

The present invention relates to a planting machine, and more particularly, to a device designed to be sown automatically by the method of converting the rotational motion by a power source such as a manpower or a motor into a linear motion.

In general, to sow seed seeds, such as beans or radishes, you need to dig the ground with a hoe or a hoe, put the seeds in the ground, and then cover the soil again. However, seeds such as beans do not need to be deeply buried in the ground, so it is not necessary to dig deep into the ground, and the soil is covered on the seed sown so that the operation is simple. Normally, when sowing, the worker is sowing by hand, such as digging the ground by hand and putting seeds in the ground.The worker bends the waist, digs the ground with a hoe or hoe, puts the seeds, and then moves again. Since the same work must be repeated in different places, it was not only a lot of effort, but also a lot of time and effort. In view of these problems, various types of planters have been developed to enable the machine to perform the seeding work semi-automatically.

Conventional seeding machines which are operated by manpower to perform semi-automatic seeding work include the Korean Utility Model Publication No. 20-16656, "Seed Seeder," the Korean Utility Model Publication No. 20-209474, "Sowing device", Korea Patent Application Publication No. 20-287460, "Parallel seeding device" and the like, in which such a seeding machine is operated by the force transmitted by the manpower to form a bone in the soil, the seed automatically falls on the bone. The seed is sown. In addition, by using the power, the rice transplanter is equipped with a hopper in which seed seeds are stored, and the worker operates the rice transplanter, and the power generated from the rice transplanter forms a bone in the soil where the seed is to be planted, and the bone is stored in the hopper. There has also been known an automatic seeding device that can reduce the seeding time and improve the convenience of the operator by dropping the seed sowing operation.

However, in the conventional planter, the semi-automatic type is easier to work than manual work, but still has difficulty in working, such as bending the waist or holding the planter by hand to operate the planter. In the case of the automatic seeding machine used, there is a problem that it is difficult for the general public to easily carry out the seeding work because a professional technique for operating a rice transplanter, which is an agricultural machine, is required.

The present invention is devised to solve the above-mentioned problems, and when the wheeled cart-type device moves forward, by converting the rotational motion generated by a power source such as a manpower or a motor into a linear motion acting up and down on the ground It is an object of the present invention to provide a seeding machine configured to form a valley having a predetermined interval on the ground, and to be seeded on the valley automatically so that the movement is easy, the operation is convenient, and the seed sowing operation is made simple.

1 is a perspective view showing a planter according to the present invention.

Figure 2 shows an embodiment in which each step of the seeding operation is carried out by the seeding machine according to the present invention.

Figure 3 is a side view showing the coupling relationship between the rotary disc and the distribution unit, the hollow arm of the plant according to the present invention.

Figure 4 is an exploded perspective view showing a first drive shaft provided in the planter according to the present invention.

5 shows an embodiment in which the seeding interval is adjusted by the first drive shaft of the seeding machine according to the present invention.

6 is a perspective view showing a second drive shaft of the planter according to the present invention.

Figure 7 is a perspective view showing a method of adjusting the height of the bone work frame of the planter according to the present invention.

<Description of the symbols for the main parts of the drawings>

100: rotating disk 101: loading box

103: central axis frame 105: vertical adjustment bolt

106: up and down adjustment nut 110: contact projection

120: distribution unit 122: distribution groove

130: bonework frame 132: first member

134: second member 136: locking projection

140: coupling frame 142: first spring

144: second spring 150: rotating frame

160: hollow arm 162: upper jaw

164: lower jaw 170: guide

200: first drive shaft portion 201: hollow pipe

202: guide means 210: first gear portion

220: transfer bolt 222: transfer projection

224: male thread portion 230: nut portion

232: female thread 240: fixing means

250: rotating shaft coupling portion 300: second drive shaft portion

301: wheel drive shaft 310: power transmission unit

312: first fastening means 320: second gear portion

322: second fastening means 330: control lever

400: chain

Seeder according to the present invention for achieving the above object, a connecting frame including a body frame constituting the skeleton of the device, a handle connected to the body frame is formed to be gripped by the user, and the body of the frame In the seeding machine consisting of a drive shaft portion coupled to the lower end portion and rotated by a power source, and a wheel coupled to the drive shaft portion to be rotatable, coupled to the upper end portion of the body frame, the seeds can be flowed by gravity A loading box 101 through which a lower portion thereof passes; A rotating disk 100 formed in a disk shape and including at least one contact protrusion 110 coupled to be spaced inwardly from an outer circumference, the rotation disk being rotated according to the rotation of the drive shaft; A distribution unit (120) formed in a disk shape and coupled to a central portion of the rotating disc and including one or more distribution grooves (122); A guide part 170 formed in a shape surrounding a portion of an outer circumferential surface of the distribution part 120 and provided to guide the seed introduced from the distribution groove 122 according to the rotation of the distribution part 120; It is coupled to the outer side of the central portion of the distribution unit 120 so that the distribution unit 120 can rotate in a rotational direction, a passage through which the seed flows is formed in the stop portion, the lower end formed by protruding a portion of the inner surface of the lower end A hollow arm 160 including a catching jaw 164 and an upper catching jaw 162 formed by protruding a portion of an inner surface of a position spaced upwardly from the lower catching jaw 164 by a predetermined distance; A coupling frame 140 coupled to one end of the body frame; A rotation frame (150) coupled to the coupling frame (140) to be able to rotate a predetermined angle up and down according to contact with the contact protrusion (110) provided on the rotating disc; A first member 132 coupled to the pivot frame 150 and a part of an upper end drawn between the hollow arm 160 and the rotation disc 100, and coupled to the first member 132 in a slidable structure, A second protrusion including a protrusion 136 formed by protruding a portion of the upper outer surface of the hollow arm 160 so that the sliding motion is restrained between the upper locking jaw 162 and the lower locking jaw 164. It characterized in that it comprises a bone work frame 130, the member 134 is included.

In addition, the drive shaft portion is coupled to the central axis of the rotating disk, the first drive shaft portion including a first gear portion formed over the entire circumference of the outer peripheral surface, and rotates according to the rotation of the wheel, formed over the entire circumference of the outer peripheral surface And a second drive shaft portion including a second gear portion, and a chain connecting the first gear portion and the second gear portion, wherein the first drive shaft portion is formed in a long groove shape therein. A hollow pipe including a guide means, the first gear portion being formed on an outer circumferential surface thereof; A conveying bolt drawn into the hollow pipe and including a conveying protrusion formed by protruding a portion of the end perpendicularly to the rotating shaft so as to be slidably moved along the guide means, and a male thread formed on the other end of the opposite end; A nut part which is fastened and rotated so that the transfer bolt is drawn in or drawn out inside the hollow pipe; It characterized in that it comprises a fixing means for restraining the movement of the nut portion.

In addition, the second drive shaft portion and the wheel drive shaft rotated in accordance with the rotation of the wheel; A power transmission unit including a first fastening means formed at a shape at which one end is protruded or retracted, and coupled to move horizontally by a predetermined distance along the wheel drive shaft; And a second fastening means protruding or retracting a part of the first fastening means into a shape capable of being coupled to the first fastening means, the second gear part being coupled to the wheel drive shaft and provided to be rotatable along an axis independently or independently of the rotation of the wheel; ; It characterized in that it comprises a control lever which is provided so that the first fastening means formed in the power transmission unit and the second fastening means formed in the second gear portion is coupled to or separated from each other by adjusting the movement of the power transmission unit. do.

In addition, the second drive shaft portion and the wheel drive shaft is rotated in accordance with the rotation of the wheel; A power transmission unit including a first fastening means formed at a shape at which one end is protruded or retracted, and coupled to move horizontally by a predetermined distance along the wheel drive shaft; A second fastening means which includes a second fastening means protruding or retracted in a shape coupled to the first fastening means, coupled to the wheel drive shaft is provided to be rotatable about the axis independently or dependent on the rotation of the wheel Wow; It characterized in that it comprises a control lever which is provided so that the first fastening means formed in the power transmission portion and the second fastening means formed in the second gear portion is coupled to or separated from each other by adjusting the movement of the power transmission portion. do.

In addition, the body frame, and the upper and lower adjustment bolt fixedly coupled to one end of the body frame; A vertical adjustment nut which is coupled to the vertical adjustment bolt and rotates; And a central axis frame spaced upwardly or downwardly according to the rotation of the vertical adjustment nut, wherein the coupling frame constrains the rotation angle of the rotation frame coupled to the coupling frame to be rotatable. And a second spring coupled to the hollow arm to constrain the rotational angle.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the planter according to the present invention.

1 is a perspective view showing a planter according to the present invention.

As shown, the planter according to the present invention is provided with a wheel for easy movement is made in the form of a cart configured to enable the operator to work while holding a handle. The planter is formed in a container shape for storing the seed to be seeded on the upper end, and provided with a loading box 101 penetrates the lower end so that the loaded seeds can flow, some of the loaded seeds are loaded by gravity (101) The seed is introduced into the distribution unit 120 coupled to the bottom, the seed is divided into the amount required for sowing according to the rotation of the rotary disk 100, the seed divided in the distribution unit 120 Is introduced into the bone work frame is provided to produce a bone in has a configuration that allows the seeds to be sown at regular intervals.

In addition, the rotary disc 100 and the bone work frame is coupled to the left and right sides of the seeding machine so that the seeding work can be performed simultaneously on both sides, or constrains the rotation of one rotary disc 100, or of the bone work frame It is also possible to make the seeding work on only one side of the left or right side by suppressing the shandong, or by removing the seed from the loading box (101). In addition, the control lever 330 provided at the rear of the seeding machine to transfer the power to the rotary disk 100 to the seeding operation or simply move to the destination in a state that does not transmit power to the rotary disk 100. This part is provided to determine whether or not to be described later with reference to the other drawings.

Figure 2 shows an embodiment in which each step of the seeding operation is carried out by the seeding machine according to the present invention.

As shown, the rotating disc 100 is formed in a disk shape, including a contact projection 110 coupled to be spaced inwardly from the outer circumference of the outer peripheral surface so that the seeds flowing from the loading box 101 can be drawn in The central portion of the distribution unit 120 is coupled to the distribution unit 120 including a distribution groove 122 formed in a groove shape, a portion of which is coupled to the hollow arm 160. The hollow arm 160 is formed with a passage through which seeds flow, and a lower locking jaw 164 formed by protruding a portion of an inner surface of a lower end thereof, and a position spaced upwardly by a predetermined distance from the lower locking jaw 164. It includes a top locking step 162 is formed by protruding a portion of the inner surface.

In addition, the bone work frame 130 is coupled to the rotation frame 150 in the form of the upper portion of the lower portion of the hollow arm 160 is inserted between the rotating disc 100 and the hollow arm 160, mutually The first member 132 and the second member 134 is coupled to the sliding frame in a possible form, the first member 132 is coupled to the rotation frame 150 of the rotation frame 150 The second member 134 is moved together according to the movement, and the second member 134 is coupled to the first member 132 so as to be slidably movable, and an upper locking jaw 162 and a lower locking jaw formed inside the hollow arm 160. A locking protrusion 136 is included to allow movement to be restricted by 164.

In addition, the coupling frame 140 coupled to the rotation frame 150 is coupled to one end of the body frame constituting the skeleton, the rotation frame 150 by the contact protrusion 110 provided on the rotating disc 100. 1) springs 142 that provide a restoring force that can be repositioned even when the downward direction is pushed downward, and the hollow arm 160 is pushed out together by being pushed in contact with the ground. Even if the second spring 144 is provided to provide a restoring force that can be repositioned.

Figure 2a shows the first step of the seeding operation in which the seed flowing downward from the loading box 101 is introduced into the distribution groove 122, the seeds stored in the loading box 101 is rotated together with the rotation of the rotating disc It shows the step of moving downward along the guide portion 170 is introduced into the distribution groove 122 of the distribution unit 120 is provided to guide to the desired position in the state that the seed is not separated. FIG. 2B shows the next step of the seeding operation and shows the step of introducing the seed introduced into the distribution groove 122 into the bone work frame 130 along the passage formed in the hollow arm 160. FIG. 2C illustrates the contact protrusion 110 to be rotated downward in a state in which the contact protrusion 110 is moved in accordance with the rotation of the rotating disc 100 to be in contact with the stop of the rotating frame 150. By 110, the bone work frame 130 coupled to the rotation frame 150 is moved downwards to show a step of entering a predetermined portion to the ground, wherein the bone work frame coupled to the rotation frame 150 ( 130 is moved downward simultaneously with the first member 132 and the second member 134 coupled. FIG. 2D illustrates a step in which the contact protrusion 110 contacts the distal end of the pivot frame 150 so that the bone work frame 130 is deeper into the ground than the previous step, in which the first member 132 is formed. The second member 134 is introduced into the bottom of the ground more deeply along the downward movement of the rotation frame 150, the locking projection 136 is formed on one side of the upper end, is formed in the hollow arm 160 Since the upper surface is slid upward from the first member 132 by being caught by the lower locking jaw 164, the lower end of the bone work frame 130 is opened so that seeds introduced into the interior are leaked to the ground. FIG. 2E illustrates a step in which the pivot frame 150 is pivoted downward to the maximum, at which time the hollow arm 160 is slightly pushed to the right by the friction of the first member 132 on the ground, and thus is embedded in the ground. Preventing damage that may be caused by the jammed stone roots, etc., as the operation to press the ground at an angle is made easier for the seed introduced into the bone work frame 130 to escape. After the final step as shown in FIG. 2E, the contact protrusion 110 is further rotated to be separated from the rotation frame 150, where the first spring is coupled to the coupling frame 140 and the rotation frame 150. By the restoring force of 142, the position is returned to the state in which the bone work frame 130 is separated from the ground as shown in FIG. 2A, and a second spring connected between the coupling frame 140 and the hollow arm 160 ( Since the position of the hollow arm 160 is also restored by the restoring force of 144, the work in which the first step is performed again is repeatedly circulated, thereby making continuous work.

Figure 3 is a side view showing the coupling relationship between the rotary disc and the distribution unit, the hollow arm of the plant according to the present invention.

The distribution unit 120 including a groove-shaped distribution groove 122 formed to allow the seed to be introduced into the outer circumferential surface may be rotated in the same manner according to the rotation of the rotational disc 100 provided with the contact protrusion 110. It is coupled to the central portion of the rotating disc 100, the hollow arm 160 is coupled to the rotating shaft in the idle state so as not to be affected by the rotation of the rotating disc 100 and the distribution unit 120 is the distribution unit ( At the lower end of the 120 is installed close to the passage in which the seed is separated from the distribution groove 122 is introduced. The lower side of the hollow arm 160 is open to one side so that the rotation frame 150 and the bone work frame 130 can be located inside the bottom of the hollow arm 160, the opposite side of the open side is bone work An upper locking jaw 162 and a lower locking jaw 164 are formed to restrain the sliding movement of the second member 134 included in the frame 130.

Figure 4 is an exploded perspective view showing a first drive shaft of the planter according to the present invention.

The drive shaft of the planter according to the present invention is a part for transmitting power for the rotation of the rotating disc 100 and the distribution unit 120, the drive shaft may be driven by a rotating power source such as a motor, the operator by manpower When working while pushing the planter bar may be driven by receiving the power according to the rotation of the wheel, the latter will be described later with reference to the other drawings.

Both ends of the first drive shaft portion 200 are coupled to the central axis of the rotary disk 100, the first gear portion 210 formed over the entire circumference of the outer peripheral surface of the hollow pipe 201 of the first drive shaft portion 200 ) Is used to receive the rotational power by the motor. If the length of the first drive shaft 200 is adjusted, it is possible to widen or narrow the seeding interval, so that the first drive shaft 200 is configured as follows.

The first drive shaft portion 200 includes one or more guide means 202 formed in an elongated groove shape therein, and a hollow pipe 201 having the first gear portion 210 formed on an outer circumferential surface thereof, and the hollow One or more transfer protrusions 222 and the transfer protrusions 222 are introduced into the pipe 201 and are formed by protruding a portion of the end of the pipe 201 perpendicularly to the axis of rotation so as to slide along the guide means 202. The transfer bolt 220 including the male screw portion 224 formed on the other end of the opposite end is fastened to the male screw portion 224 such that the transfer bolt 220 is drawn or withdrawn from the inside of the hollow pipe 201 Rotating and the nut portion 230 is formed inside the female screw portion 232, and the fixing means for restraining the rotation of the nut 230 is configured to include.

If the nut part 230 is rotated in a state in which left and right movements are restricted by fixing means (not shown), the conveying bolt 220 is rotated by the coupling of the guide means 202 and the feeding protrusion 222. The restraint is horizontally moved into the hollow pipe 201 or horizontally moved to the outside so that the seeding interval can be adjusted.

5 shows an embodiment in which the seeding interval is adjusted by the first drive shaft of the seeding machine according to the present invention.

5 (a) shows a case in which the seeding interval is narrowed by the rotation of the nut 230, the left and right movement is constrained, and Fig. 5 (b) is sowing by the rotation of the nut unit 230, the left and right movement is constrained. The case where the space | interval widens is shown. The rotating shaft coupling part 250 provided between the rotating disc 100 and the fixing means 240 at both end portions of the first driving shaft part 200 may be horizontally rotated in a state in which the rotating disc 100 has an inclination. The part provided is a part including all available means known in the art, such as a combination of a bevel gear having a slope therein.

6 is a perspective view showing a second drive shaft of the planter according to the present invention.

The second drive shaft 300 of the planter according to the present invention is to transmit the power by the rotation of the wheel to the first drive shaft unit 200 when the operator works while pushing the planter by manpower, or the wheel of the planter Even when driven by a rotational power source such as a motor, the rotational force of the wheel drive shaft 301 is provided for the purpose of transmitting to the first drive shaft portion 200.

The second drive shaft part 300 includes a wheel drive shaft 301 rotated according to the rotation of the wheel, and a first fastening means 312 formed in a shape in which one end is protruded or drawn, the wheel drive shaft 301 A power transmission unit 310 is coupled to be able to move a predetermined distance horizontally along the second, and a second fastening means 322 is protruded or drawn into a shape that can be coupled to the first fastening means 312, the The second gear unit is coupled to the wheel drive shaft 301 so as to be rotatable about an axis independently or dependently on the rotation of the wheel, and the movement of the power transmission unit 310 is adjusted to the power transmission unit 310. The first fastening means 312 is formed, and the second fastening means 322 formed in the second gear portion includes a control lever 330 is provided to be coupled to or separated from each other.

FIG. 6 (a) illustrates a state in which the power transmission unit moves to the left side by operating the control lever 330. In this case, the second gear unit is separated from the power transmission unit 310 and the wheel is rotated. Even if it is idling it is not rotated together, so that the power is not transmitted to the first drive shaft 200 connected by the chain 400, it is possible to move the seed drill to the destination without the seeding operation is made 6 (b) shows a state in which the power transmission unit moves to the right by operating the control lever 330. In this case, the second gear unit is fastened to the power transmission unit 310. As the wheel is rotated, the second gear unit is rotated together to drive the chain 400. In this case, power is transmitted to the first driving shaft unit 200, so that the seeding operation can be performed.

In addition, it should be noted that the mechanical configuration of the power transmission unit which is moved left and right by the operation of the control lever 330 is not limited to any one method, but includes all possible means already known.

Figure 7 is a perspective view showing a method of adjusting the height of the bone work frame provided in the planter according to the present invention.

Up and down adjustment bolt 105 is fixedly coupled to one end of the body frame, and up and down adjustment nut 106 is coupled to the top and bottom adjustment bolt 105 to rotate, up or down in accordance with the rotation of the up and down adjustment nut 106 It is configured to include a central axis frame 103 spaced downward, and is provided for the purpose of adjusting the height of the bone work frame 130 is inserted into the ground. As the center axis frame 103 is moved upward or downward as the vertical adjustment nut 106 is rotated, FIG. 7 (a) shows a case in which the height of the bone work frame 130 is the lowest. Figure 7 (b) shows the case of increasing the height of the bone work frame 130 by rotating the vertical adjustment nut 106.

The present invention has been described in detail using the preferred embodiments, but the scope of the present invention is not limited to the specific embodiments, and should be interpreted by the appended claims. In addition, those of ordinary skill in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

The seeding machine according to the present invention converts the rotational motion generated by the rotation of the disc into a linear motion acting up and down on the ground to form a valley having a certain interval on the ground, and the seed is automatically sprayed on the valley so that the movement is It is easy, convenient to operate, and there is an advantage that the seeding operation can be made simply.

Claims (7)

A connecting frame including a body frame constituting an armature of the apparatus, a handle connected to the body frame, and formed to be gripped by a user, and a driving shaft coupled to a lower end of the body frame and rotated by a power source; In the seeding machine consisting of wheels rotatably coupled to the drive shaft, A loading box 101 coupled to an upper end of the body frame, through which a lower portion of the lower body passes through the gravity; A rotating disk 100 formed in a disk shape and including at least one contact protrusion 110 coupled to be spaced inwardly from an outer circumference, the rotation disk being rotated according to the rotation of the drive shaft; A distribution unit (120) formed in a disk shape and coupled to a central portion of the rotating disc and including one or more distribution grooves (122); A guide part 170 formed in a shape surrounding a portion of an outer circumferential surface of the distribution part 120 and provided to guide the seed introduced from the distribution groove 122 according to the rotation of the distribution part 120; It is coupled to the outer side of the central portion of the distribution unit 120 so that the distribution unit 120 can rotate in a rotational direction, a passage through which the seed flows is formed in the stop portion, the lower end formed by protruding a portion of the inner surface of the lower end A hollow arm 160 including a catching jaw 164 and an upper catching jaw 162 formed by protruding a portion of an inner surface of a position spaced upwardly from the lower catching jaw 164 by a predetermined distance; A coupling frame 140 coupled to one end of the body frame; A rotation frame (150) coupled to the coupling frame (140) to be able to rotate a predetermined angle up and down according to contact with the contact protrusion (110) provided on the rotating disc; A first member 132 coupled to the pivot frame 150 and a part of an upper end drawn between the hollow arm 160 and the rotation disc 100, and coupled to the first member 132 in a slidable structure, A second protrusion including a protrusion 136 formed by protruding a portion of the upper outer surface of the hollow arm 160 so that the sliding motion is restrained between the upper locking jaw 162 and the lower locking jaw 164. A bonework frame 130 including a member 134; Seeder, characterized in that comprising a. The method of claim 1, The drive shaft portion, Is coupled to the central axis of the rotation disk 100, the first drive shaft portion 200 including a first gear portion 210 formed over the entire circumference of the outer peripheral surface, and rotates according to the rotation of the wheel, a portion of the outer peripheral surface And a second drive shaft portion 300 including a second gear portion formed over the entire circumference thereof, and a chain 400 connecting the first gear portion 210 and the second gear portion. planter. The method of claim 2, The first drive shaft unit 200, A hollow pipe 201 including a guide means 202 formed in a long groove shape therein and having the first gear portion 210 formed on an outer circumferential surface thereof; A feed protrusion 222 which is drawn into the hollow pipe 201 and is formed to protrude perpendicularly to the rotation axis so as to be slidably moved along the guide means 202, and a number formed at the other end of the opposite end. A transfer bolt 220 including a threaded portion 224; A nut part 230 fastened to the male screw part 224 and rotated so that the transfer bolt 220 is drawn in or drawn out from the hollow pipe 201; Fixing means 240 for restraining the movement of the nut part 230; Seeder, characterized in that comprising a. The method of claim 2, The second drive shaft unit 300, A wheel drive shaft 301 rotated according to the rotation of the wheel; A first fastening means 312 formed at a shape at which one end protrudes or retracts, and includes a power transmission unit 310 coupled to move horizontally along the wheel drive shaft 301; A second fastening means 322 is protruded or drawn into a shape that can be coupled to the first fastening means 312, coupled to the wheel drive shaft 301 is rotated along the axis independently or dependent on the rotation of the wheel A second gear part provided to be possible; The first fastening means 312 formed in the power transmission part 310 and the second fastening means 322 formed in the second gear part are coupled to or separated from each other by adjusting the movement of the power transmission part 310. Control lever 330 is provided to be; Seeder, characterized in that comprising a. The method of claim 3, wherein The second drive shaft unit 300, A wheel drive shaft 301 rotated according to the rotation of the wheel; A first fastening means 312 formed at a shape at which one end protrudes or retracts, and includes a power transmission unit 310 coupled to move horizontally along the wheel drive shaft 301; A second fastening means 322 is protruded or drawn into a shape that can be coupled to the first fastening means 312, and coupled to the wheel drive shaft 301 is independent or dependent on the rotation of the wheel around the axis A second gear unit provided to be rotatable; The first fastening means 312 formed in the power transmission part 310 and the second fastening means 322 formed in the second gear part are coupled to or separated from each other by adjusting the movement of the power transmission part 310. Control lever 330 is provided to be; Seeder, characterized in that comprising a. The method according to any one of claims 1 to 5, The body frame, An up and down adjustment bolt 105 fixedly coupled to one end of the body frame; An up and down adjustment nut 106 which is coupled to the up and down adjustment bolt 105 and rotates; Seeder characterized in that it comprises a central axis frame 103 spaced upward or downward in accordance with the rotation of the vertical adjustment nut (106). The method according to any one of claims 1 to 5, The coupling frame 140, A first spring 142 for restraining the rotation angle of the rotation frame 150 rotatably coupled to the coupling frame 140, and a second spring 144 coupled to the hollow arm 160 to restrain the rotation angle Seeder is characterized in that it is provided.