JPH0734612U - Seed potato planting machine incorporated in rotary tiller - Google Patents

Abstract

(57) [Summary] [Purpose] By incorporating a seed potato planting machine for planting seed potatoes in a specific posture such that buds are on top into a rotary tiller, it is possible to reduce the size and weight of the seed potato planting machine. Along with
Immediately after planting seed potatoes, it should be possible to cover soil and form ridges. [Structure] A rotary cover 1 which is a central portion in a width direction of a rotary tiller R mounted on a rear portion of a tractor T.
The front and rear sprockets 9 and 11 are arranged in a portion above 2 and the lower sprocket 15 is arranged in a portion below the cover 12 so that a large number of holders H urged in the closing direction are provided. Transport chain 23 planted at regular intervals
Is mounted between the three sprockets 9, 11 and 15 described above, and the first opening / closing guide 27 for placing the holder H in the open posture is arranged at the seed potato inserting portion 26 between the front and rear sprockets 9, 11. At the same time, the same second opening / closing guide 29 is provided on the lower sprocket 15.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a seed potato planting machine that is integrally incorporated in a rotary tiller mounted on the rear side of a tractor. More specifically, it is possible to plant seed potatoes such as taro in a posture in which they are always on the top. The present invention relates to a seed potato planting machine.

[0002]

[Prior art]

 In this way, in order to plant seed potatoes in a fixed posture such that the part of buds such as taro is always on the top, a large number of holders for holding the potatoes in a releasable manner are planted in the transport chain at regular intervals. This endless conveyor chain is hung on a plurality of sprockets, and at the lower end part of which a horizontal traveling section that travels in the direction opposite to the traveling direction of the machine body is provided. There is known a dedicated potato planting machine having a structure in which the absolute velocity of the carrier chain in the horizontal traveling portion is set to be almost zero, and the potatoes held by the holder are released and planted. .

However, this type of seed potato planting machine pulls only the seed potatoes by towing with a towing vehicle such as a tractor, and the work of covering the soil with the seed potatoes and forming the ridges is performed separately. It is necessary to cover the soil after planting the potatoes, and it takes a lot of time to form the ridges, and the work efficiency as a whole is poor. It is difficult to match the position. In addition, if the number of teeth of a specific sprocket that constitutes the sprocket mechanism for driving the conveyor chain is changed in order to change the seedling planting pitch, the horizontal traveling portion of the conveyor chain with respect to the traveling speed of the machine body is changed. The ratio of traveling speed may change, and the falling posture of the seed potato may be changed. In addition to this, the lower end part for dropping and planting the seed potatoes is provided with a horizontal running part of a predetermined length, so that the length as a seed potato planting machine becomes longer and it becomes larger. There are also drawbacks.

[0004]

[Problems to be Solved by the Invention] The problem to be solved by the present invention is to install a seed potato planting machine for planting a seed potato in a specific posture such that buds are on top, by integrally incorporating it into a rotary tiller. In addition to reducing the size and weight of the machine, it is also possible to cover soil and form ridges immediately after planting the seed potatoes, thereby increasing the efficiency of the entire work including planting the seed potatoes.

[0005]

[Means for Solving the Problems]

 SUMMARY OF THE INVENTION The present invention for solving the above-mentioned problems is a seed potato planting machine which is mounted mainly at the rear of a tractor and is integrally incorporated into a rotary tiller equipped with a tiller shaft for horizontal axis rotation. The front sprocket and the rear sprocket are located above the rotary cover with a certain distance in the front-rear direction at the center in the width direction of the vehicle and from the rear end to the rear. At the same time, the lower sprocket is located below the rotary cover, and a large number of holders with a structure in which a pair of holder pieces are biased in the closing direction by spring action are planted at regular intervals. The transport chain is mounted between the three sprockets described above and linearly travels to the seed potato input section between the front sprocket and the rear sprocket. A first opening / closing guide is provided for opening a pair of holder pieces of the holder planted in the feeding chain to maintain the open posture only in a predetermined section, and the lower sprocket is rotated by the first opening / closing guide. A second opening / closing guide for opening the pair of holder pieces of the holder planted in the traveling transport chain and maintaining the open posture at least in a predetermined section is provided, and the transport belt is provided between the front sprocket and the rear sprocket. By driving the conveyor belt so that the vehicle travels in the same direction as the machine body, the potatoes gripped by the holder in the potato feeding section are transported to the lower sprocket portion at the lowermost end, and are fed from both sides at the groove bottom. After fixing it with the falling soil, place the pair of holder pieces at the lowermost end of the lower sprocket in a sudden open position. By maintaining the open position with a constant interval, by opening the tuber that has been lifting bunch in the holder are as characterized by being configured to inoculate so the groove bottom.

[0006]

[Advantage of the Invention] In the seed potato inserting section between the front sprocket and the rear sprocket, the pair of holder pieces of the holder planted in the transport chain traveling in this section are moved to the predetermined section by the action of the first opening / closing guide. At open position. While the pair of holder pieces are in the open position, the seed potatoes are inserted between the pair of holder pieces in a bud-down position, and when the holder passes through the first opening / closing guide, the spring action causes The pair of holder pieces are closed, and the potatoes are gripped by this. Then, when the seed potatoes are transported to the lower sprocket portion at the lower end by the transport chain, the transport chain rotates in this portion, and while the seed potatoes reach the lowermost end, the potatoes are paired with a pair of holes. It is grounded on the bottom of the groove immediately after molding while being held by the dar piece, and is fixed in a posture with the sprout on top by the soil that collapses from both sides. Immediately after that, the pair of holder pieces holding the seed potatoes fixed by the action of the second opening / closing guide suddenly open to release the held potatoes, and this posture is maintained for a predetermined period, The seed potatoes are planted on the bottom of the groove with the shoots facing up at the bottom of the transport chain. In the present invention, since the seed potato planting machine is integrally incorporated in the rotary tiller, the seed potato immediately after planting is covered with soil from both sides by the tiller to form a ridge.

[0007]

【Example】

 Hereinafter, the present invention will be described in more detail with reference to examples. FIG. 1 is a side view of a seed potato planting machine A according to the present invention assembled in a rotary tiller R, FIG. 2 is a plan view of the same, and FIG. 3 is a plan view of the seed potato planting machine A. FIG. 4 is a mechanical view, FIG. 4 is a perspective view of a portion of the seed potato throwing portion 26, FIG. 5 is an enlarged side view of a portion of the lower sprocket 15, and FIG. 6 is a lower sprocket 15 and a grooved plate 17. FIG. 7 is an exploded perspective view of FIG. 7, and is a perspective view of the lower end portion of the frame 16 to which the lower sprocket 15 is attached. 1 and 2, a three-point hitch link L including a top link 1 and a pair of lower links 2 is attached to the rear portion of the tractor T, and a mast 10 is attached to the three-point hitch link L. The rotary tiller R is attached to the mast 10 via a connecting tool 3. The rotary tiller R includes a tiller shaft 4 that rotates on the horizontal axis, and a tiller blade 5 is attached to the tiller shaft 4. The plowing blade 5 is for plowing the soil from both sides toward the center while plowing. A gear case 6 is attached to the front part of the rotary cultivator R in the widthwise center part thereof, and the power of the PTO shaft 7 of the tractor T is internally provided in the gear case 6 via the universal joint 8. Is transmitted to a sprocket mechanism (not shown), which rotates the tiller shaft 4.

The front sprocket 9 and the rear sprocket 11 are located at a central portion in the width direction of the rotary tiller R and from the rear end to the rear of the rotary tiller R at a predetermined distance in the front-rear direction than the rotary cover 12. It is arranged above and is rotatably mounted on each of the frames 13 and 14 provided in that portion. In addition, as shown in FIGS. 1, 5 and 6, the lower sprocket 15 is arranged below the rotary cover 12 at the above-mentioned portion based on the rotary tiller R, and is provided at that portion. The frame 16 is rotatably mounted on the frame 16. Further, the cultivating blade 5 is not provided in the portion of the cultivating shaft 4 where the gear case 6 is arranged, and the groove piercing plate 17 is arranged in this portion, and the grooving plate 17 serves as the lower sprocket. The lower sprocket 15 is inserted into the grooved plate 17 by adjusting the position in the vertical direction of the frame 16 on which the lower part 15 is mounted.

As shown in FIGS. 4 and 8, the holder H is formed by connecting a pair of holder pieces 19 to both ends of the board 18 in the width direction so that the holder pieces 19 can be opened and closed. This is a structure in which a bar material 19b formed by bending a thin metal bar is fixed to the front and rear ends of the opening / closing plate 19a. Further, each holder piece 19 is biased in the closing direction by the restoring force of the coil spring 21, and each holder piece 19 is engaged with first and second opening / closing guides 27, 29 described later. An engaging lever 22 for placing itself in an open posture is provided below the substrate 18.

As shown in FIGS. 3 and 4, a large number of the holders H are planted in the endless transport chain 23 at regular intervals, and the holders H of the three sprockets 9, 11, 15 described above are installed. It is hung in between. Further, as shown in FIG. 3, the rotation of the grounding wheel 24 is transmitted to the front sprocket 9 via a sprocket mechanism 25 composed of a large number of sprockets and a chain, so that between the front and rear sprockets 9, 11. The transport chain 23 is driven so that the transport chain 23 travels in the same direction as the machine body.

Further, as shown in FIGS. 2 and 4, in the seed potato inserting portion 26 between the front and rear sprockets 9 and 11, a holder H planted in the transport chain 23 that travels straight through the portion. There is provided a linear first opening / closing guide 27 for engaging the engaging lever 22 and opening the pair of holder pieces 19 and maintaining the open posture for a predetermined section. Corresponding to each holder piece 19 being provided with the engaging lever 22, two first opening / closing guides 27 are provided in parallel. The first opening / closing guide 27 is opened outward at its entrance, and opens the holder pieces 19 that are in close contact with each other at this portion and maintains this open attitude at the other portions. It has become. In addition, as shown in FIGS. 5 and 6, the rotation shaft 28 of the lower sprocket 15 is supported by the lower ends of the pair of frames 16, and the rotation shaft 28 is located directly below the rotation shaft 28 inside each frame 16. The part of the rotary shaft 28 facing the rotational direction is engaged with the engaging lever 22 of the holder H 1 which is planted in the transport chain 23 that rotates around the part to open the pair of holder pieces 19. A second opening / closing guide 29 for maintaining the open posture in a predetermined section is attached. The second opening / closing guide 29 of the present embodiment is configured by a block-shaped member having an arc shape, and a portion serving as an engagement start end is steeply inclined along the thickness direction. The engagement lever 22 of the holder H 1 is engaged with the pair of holder pieces 19 holding a later-described potato 31 to open abruptly.

Further, as shown in FIGS. 1 and 2, a work chair 30 is attached to a rear portion of the seed potato planting machine A at a predetermined distance from the rear sprocket 11. A seed box 32 for accommodating the seed potatoes 31 is arranged on both sides of the seed potato planting machine A on both sides. Further, on the rear part of the rotary tiller R, a ridge forming plate 33 and a multi-working machine B are mounted. The multi-work machine B includes a seat roll 34, a sheet receiving roll 35, a pair of compression wheels 36, and a pair of soil cover plates 37.

When the tractor T travels in the direction indicated by the arrow P, the rotation of the ground wheel 24 is transmitted to the front sprocket 9 via the sprocket mechanism 25, and the sprocket 9 and the front sprocket 9 are separated from each other. The transport chain 23 travels in the same direction as the machine body in the straight traveling section, and travels around between the three sprockets 9, 11, and 15. Since the worker M sitting in the rear part of the rotary tiller R and inserting the seed potato 31 taken out from the seed box 32 into the holder H of the holder H by the operator M sitting on the work chair 30, the operator can hold the seed potato 31. is there.

When the holder H rotates at the rear sprocket 11 and enters the seed potato inserting section 26, the engaging levers 22 of the holder pieces 19 located below the substrate 18 are respectively moved to the first position. The pair of holder pieces 19 engaged with the first opening / closing guide 27 and brought into close contact with each other by the action of the coil spring 21 are brought into the open posture (see FIG. 8), and the open posture is maintained in the predetermined section. The worker M inserts the seed potatoes 31 between the pair of holder pieces 19 in the open posture with the sprouts 31a facing down, and when the holder H escapes from the front end portion of the first opening / closing guide 27, The engagement between the first opening / closing guide 27 and the engagement lever 22 of the holder piece 19 is released, and the seed potato 31 in a posture in which the sprout 31a is lowered by the action of the coil spring 21 is sandwiched and grasped by the pair of holder pieces 19. (See FIG. 9). The transport chain 23 transports the seed potato 31 to the lower sprocket 15 while being held by the pair of holder pieces 19.

When the potatoes 31 gripped by the pair of holder pieces 19 reach the lower sprocket 15, the potatoes 31 gripped by the pair of holder pieces 19 start to rotate, and the potatoes 31 move into the groove. At the same time as it enters the bottom of the groove 38 opened by the opening plate 17 and comes into contact with the ground, the fallen soil is applied from both sides of the groove and is fixed to the bottom of the groove 38 with the sprouts 31a facing up ( (See FIG. 10). Immediately after that, the engagement levers 22 attached to the holder pieces 19 engage with the second opening / closing guides 29, respectively, and the holder pieces 19 are suddenly opened, and the seed potatoes 31 that have been grasped To release the seed potato 31 (see FIGS. 5 and 11). In this way, even after the holder H is separated from the seed potato 31, the engagement levers 22 of the holder pieces 19 and the second opening / closing guides 29 maintain the engagement, so that the holder H is rotating. In the meantime, the pair of holder pieces 19 maintain the open posture (see FIGS. 5 and 12) and do not come into contact with the seed potatoes 31 planted at the bottom of the groove 38.

When the rotational movement of the holder H is completed, the engagement between the second opening / closing guide 29 and the engagement lever 22 is released, and the action of the coil spring 21 causes the pair of holder pieces 19 to be closely attached (see FIG. 5 and FIG. 13), run toward the rear sprocket 11. Immediately after the seed potatoes 31 are thus planted in the bottom of the groove 38 in a posture in which the buds are on the upper side, the soil is gathered from both sides toward the center by the tilling blades 5 and covered with the seed potatoes 31. At the same time, uprising is performed. After that, the formed ridge is shaped by the ridge shaping plate 33, and the ridge shaped by the multi-working machine B is covered with the sheet 39. 1 and 2, reference numerals 41 and 42 denote the rear wheels of the tractor T and the gauge wheels mounted on the rotary tiller R, respectively.

In the above embodiment, the gear case 6 is arranged at the center of the rotary cover 12 in the width direction, and the tiller shaft 4 is supported at the center of the length thereof. By supporting two cultivating shafts, which are independent from each other on both sides of the rotary cultivator R, in a cantilevered manner with the same axis center, there is no cultivating shaft in the central portion in the width direction of the rotary cultivator R. The grooved plate 17 and the lower sprocket 15 may be arranged in this part by design.

Further, in the above-described embodiment, if the fixed position along the circumferential direction of the arc-shaped second opening / closing guide 29 is adjustable, the relationship between the traveling speed of the machine body and the planting pitch of the seed potatoes will be improved. However, if the planting posture of the seed potatoes with the buds on top is not stable, the position along the circumferential direction of the second opening / closing guide 29 may be finely adjusted to change the position from the seed potatoes fixed to the groove bottom. The phase in which the holder pieces 19 are separated can be changed, and the seed potatoes can be planted in the most stable posture. Further, in the above-described embodiment, the pair of holder pieces 19 are closed when the holder H completes the rotational movement in the lower sprocket 15, but it is continuous between the lower sprocket 15 and the rear sprocket 11. The second opening / closing guide may be arranged so that the holder H can travel between the lower sprocket 15 and the rear sprocket 11 while maintaining the open posture. Further, the holder piece 19 for holding the seed potato 31 can be formed of a thin plate material.

Further, the above-mentioned embodiment is an example in which the seedling planting machine according to the present invention is integrally incorporated in the rotary tiller mounted to the rear of the tractor, but the rotary tiller having the above-mentioned configuration is used. The present invention also includes a configuration in which the attached machine is integrally incorporated and the entire engine is self-propelled by the mounted engine. Further, although the seed potato planting machine of the above-mentioned embodiment is a one-row planting machine, it may be two-row planting by arranging two rows of transport chains.

Further, in the above-mentioned embodiment, before opening the holder H, the seed potatoes gripped by the ground potatoes are grounded on the bottom of the planting groove, and the seed potatoes are fixed by the soil falling from both sides thereof. Although shown, before opening the holder H, the seed potato may not be grounded on the bottom of the planting groove, and the seed potato may be fixed by soil falling from both sides thereof.

[0021]

[Effect of device]

 Since the seed potato planting machine according to the present invention is configured as described above, the following various effects are achieved. (1) A transport chain in which a number of holders are planted between the front and rear sprockets and the lower sprocket is hooked, and the seed potatoes gripped by the rotating holder at the lower sprocket are placed on the groove bottom. Since the seeds are grounded and the seed potatoes are fixed to the bottom of the groove by soil that collapses from both sides, the holder is separated from the seeds and the seeds are planted in a bud-up posture. Since there is no horizontal traveling section in the section, the length of the potato planting machine in the front-rear direction can be shortened and it can be installed in the rotary tillage device. (2) In the lower sprocket part, the potatoes held by the rotating holder are grounded to the groove bottom, and after the potatoes are fixed to the groove bottom by the soil that collapses from both sides of the potatoes, the holder is separated from the potatoes and the potatoes are removed. Unlike the seed potato planting machine which has a horizontal traveling section at the lowermost end, even if the machine speed or the planting pitch slightly changes, seed potatoes can be planted without any trouble. (3) Since it is integrated into the rotary tiller, it is possible to cover the seeds with soil immediately after planting and to ridge, thus eliminating the need for a separate ridge planting work. The overall work efficiency of (4) If the mounting position along the circumferential direction of the second opening / closing guide attached to the lower sprocket is adjustable, the buds will be raised in relation to the traveling speed of the aircraft and the seeding pitch of the seed potato. When the posture of planting the seed potatoes is not stable, the phase in which the pair of holder pieces separates from the potatoes fixed to the groove bottom can be changed, and the seed potatoes can be planted in the most stable posture. (5) When a multi-working machine is installed behind the seed potato planting machine, it is possible to perform the multi-work of covering the sheet where the seed potatoes are planted and the ridges are covered with a sheet in one step.

[Brief description of drawings]

1 is a side view of a seed potato planting machine A according to the present invention in a state of being incorporated in a rotary tiller R. FIG.

FIG. 2 is a plan view of the same.

FIG. 3 is a view showing only the mechanism of a seed potato planting machine A.

FIG. 4 is a perspective view of a seed potato introducing unit 26 of the seed potato planting machine A.

FIG. 5 is an enlarged side view of a lower sprocket 15 portion.

FIG. 6 is an exploded perspective view of a lower sprocket 15 and a grooved plate 17.

FIG. 7: Frame 1 with lower sprocket 15 attached
It is a perspective view of the lower end part of FIG.

FIG. 8 is an operation explanatory view of the holder H which is in the open posture in the seed potato inserting section 26.

9 is a seed potato 31 after passing through the first opening / closing guide 27. FIG.
FIG. 6 is an explanatory view of the action of the holder H holding the.

FIG. 10 is an operation explanatory view of a state in which the seed potato 31 gripped by the holder H is fixed to the bottom portion of the groove 38.

FIG. 11 is an operation explanatory view in a state where the holder H is separated from the seed potato 31 fixed to the bottom portion of the groove 38.

FIG. 12 is an operation explanatory view of the holder H in an open posture state in which the seed potatoes 31 are opened at the bottom of the groove 38 and slightly raised from the lowermost end.

FIG. 13 is an operation explanatory view of the holder H in the closed posture after the seed potatoes 31 are opened.

[Explanation of symbols]

 A: Seed potato planting machine B: Multi-working machine H: Holder R: Rotary tiller T: Tractor 4: Tilling shaft 9: Front sprocket 11: Rear sprocket 12: Rotary cover 15: Lower sprocket 19: Holder piece 23: Conveyor chain 26: Seed potato input part 27: 1st opening / closing guide 29: 2nd opening / closing guide 31: Seed potato 31a: Seedling bud 38: Planting groove

Claims (4)

[Scope of utility model registration request] 1. A seed potato planting machine which is mounted mainly on the rear of a tractor and is integrally incorporated into a rotary tiller equipped with a tiller shaft for horizontal axis rotation, the central portion in the width direction of the rotary tiller. In addition, the front sprocket and the rear sprocket are disposed above the rotary cover at a predetermined interval in the front-rear direction at the portion extending from the rear end to the rear, and the lower sprocket is located below the rotary cover. The sprocket is arranged below the rotary cover, and a pair of holder pieces are urged in a closing direction by a spring action. A wheel which is hung between the sprockets and is planted in a transport chain that travels in a straight line at the seed potato input portion between the front sprocket and the rear sprocket. A pair of holder pieces of the dar are provided with a first opening / closing guide for opening the pair of holder pieces so as to maintain the open posture only in a predetermined section, and the lower sprocket portion is planted in a conveyor chain that rotates and travels. A second opening / closing guide for opening the pair of holder pieces of the holder that is opened and maintaining the open posture in at least a predetermined section is provided, and the transport belt travels in the same direction as the machine body between the front sprocket and the rear sprocket. By driving the conveyor belt as described above,
The seed potato held in the holder in the seed potato feeding section is conveyed to the lower sprocket portion at the lowermost end and fixed by soil falling from both sides at the groove bottom, and then a pair of holder pieces are attached at the lowermost end portion of the lower sprocket. A seed potato incorporated into a rotary tiller, characterized in that the seed potato held in the holder is opened and planted in the groove bottom by rapidly opening the seed and maintaining the open posture in a predetermined section. Planting machine. 2. The seed potato planting machine incorporated in a rotary tiller according to claim 1, wherein a multi-working machine is mounted behind the seed potato planting machine. 3. The rotary tiller according to claim 1, wherein the second opening / closing guide is capable of adjusting a mounting position along a circumferential direction around a rotation axis of the lower sprocket. Seed potato planting machine. 4. A seed potato planting machine incorporated in a rotary tiller according to claim 1, wherein the pair of holder pieces constituting the holder are formed of thin rods or narrow plates.