JP2924158B2 - Seedling machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a seedling plant for field action.

[Conventional technology]

Conventionally, in a seedling transplanter configured to intermittently form a transplanting hole in the ground while advancing the fuselage and transplant a seedling into the transplanting hole, the left and right sides of the seedling are arranged on the rear side of the fuselage of the transplanted seedling. A crushing wheel that rolls on the ground in contact with the ground is provided, and the crushing wheel is rolled with the forward movement of the fuselage, passes right and left of the transplanted seedling, and is crushed to the seedling side to suppress the pressure. There was something.

[Problems to be solved by the invention]

In the conventional seedling transplanter described above, since the transplanting hole is formed while the body is advanced and the seedling is transplanted into the transplanting hole, the transplanting hole is longer in the front-rear direction than the transplanted seedling, so that the rear side of the transplanted seedling is used. In the above-mentioned crushing wheel that rolls from, the crushing of the seedlings to the front side of the seedlings becomes insufficient, which may result in poor rooting of the seedlings. Therefore, an object of the present invention is to prevent such a case from occurring.

[Means for solving the problem]

In order to solve the above-mentioned problems, the present invention provides a seedling transplanter configured to intermittently form a transplanting hole in the ground while advancing the machine body and transplant a seedling into the transplanting hole. This is a seedling planting machine characterized in that a ground contacting device 7 is provided, which is grounded on the front side of the machine body, moves to the seedling side with respect to the ground after transplanting the seedlings, and brings the soil to the seedling side.

[Functions and Effects of the Invention]

This invention intermittently forms a transplanting hole in the ground while advancing the fuselage and transplants the seedling into the transplanting hole. Since the pressure is suppressed, poor rooting is less likely to occur due to insufficient burial of the seedling to the front side.

〔Example〕

 Next, an embodiment of the present invention will be described.

The seedling transplanter includes a front engine 1, wheels 2 for propelling the engine 1, a seedling table 4 that moves left and right at the upper part of the body 3, and an intermittent up and down movement to lower the soil. A punching tool 5 which makes a plunge and makes a transplant hole in the ground by advancing the fuselage 3, and the tip of the seedling table 4 turns upward and downward as viewed from the side to turn the rear end of the seedling mounting table 4 downward from above. Seedling rod 6 to reach the transplant hole through
And a soil mulling tool 7 that moves back and forth so as to slide on the ground and pushes the soil backward.

That is, as shown in FIG. 1 and FIG.
A pair of left and right chain cases 8 extend obliquely downward and downward from the rear gear box 24, and the wheels 2 are attached to the rear ends of these chain cases 8. Thereafter, a pair of left and right idler wheels 9 is provided, and the body 3 is supported by the wheels 2 and the idler wheels 9 from the ground.

As shown in FIG. 8, the output shaft 10 of the engine 1 and the input shaft 11 in the gear box 24 are connected by the main clutch 12. Input shaft
The eleven small gear 13 meshes with the large gear 15 of the worm shaft 14, and the worm (not shown) and the worm wheel 16 mesh. The gear 17 integral with the worm wheel 16 is the gear of the transmission shaft 18
19 is engaged. The upper shaft 20 passes through the center of the worm wheel 16, and a clutch claw 21 and two-stage gears 22 and 23 are integrally formed. The clutch claw 21 is slidably mounted on the upper shaft 20 on the right side of the worm wheel 16, Claw 21 is worm wheel 16
The gears 22 and 23 mesh with and separate from the gears 25 and 26 of the transmission shaft 18, respectively. A pair of left and right wheel transmission shafts 26 extend outward from both ends of the upper shaft 20, and are connected and disconnected by a side clutch 27. The outer end of each wheel transmission shaft 26 reaches the inside of each chain case 8, and a chain wheel 28 at that end and a chain wheel 29 of the wheel 2.
And chain 30 is wound around.

Then, the rotation of the engine 1 is transmitted from the output shaft 10 to the input shaft 11 via the main clutch 12, and then the small gear 13 and the large gear
15 and a worm, a worm wheel 16, a gear 17 and a gear 19, and reach a transmission shaft 18. In the figure, the rotation of the transmission shaft 18 is transmitted from the gear 25 to the upper shaft 20 via the gear 22, and then the side clutches 27 at both ends, the wheel transmission shaft 26, and the chain wheel
28, the chain 30 and the chain wheel 29 reach the wheel 2, and the rotation of the wheel 2 causes the body 3 to move forward. When the gear 22 is separated from the gear 25 and the gear 23 meshes with the gear 26, the forward speed of the body 3 increases. When the clutch pawl 21 is engaged with the pawl 16a, the gear 22 separates from the gear 24, and the worm wheel 16
Is transmitted directly to the upper shaft 20, and the rotation of the wheel 2 is greatly accelerated. This speed is used for movement when not transplanting.

As shown in FIGS. 3 and 4, a camshaft 31 is provided at the center of the body 3 in a lateral direction. A pair of upper and lower links 33 and 34 extend vertically from the bracket 32 fixed to the body 3, and the rear ends of the links 33 and 34 are pivotally mounted on a moving frame 35. A hole-shaped drilling tool 5 is fixed. The arm 36 extends forward from the upper link 33, and a pin 37 of the tip of the arm 36 and a pin 38 of the bracket 32 lack a tension spring 39 so that the rear end of each link 33, 34 can be pulled up by the tension spring 39. ing. Hole making roller 40 is upper link
33 is attached to an intermediate portion of the shaft 33 and is pushed down by a hole forming cam 41 fixed to the cam shaft 31.

That is, as shown in FIG. 4, when the camshaft 31 rotates and the hole making roller 41 pushes down the hole making roller 40, the tension spring 39 expands, and the rear ends of the pair of links 33 and 34 go down to move the moving frame 35. Pushes down the drilling tool 5, and its lower end rushes into the ground. Also,
When the drilling cam 41 passes the position of the drilling roller 41, the drilling tool 5 is pulled up from the ground by the tension spring 39.

Here, since the fuselage 3 is advancing as described above, the lower end of the drilling tool 5 is pushed forward into the ground, and at this time, a part of the soil is scraped forward and the remaining soil is removed. Plow and soften to make a transplant bed at the bottom of the transplant hole. Hole making tool 5
When the soil is pulled out of the ground, the swelled soil rises in front of the transplant hole.

A hook 42 is attached to the pin 38, and is turned clockwise by a spring 43, and is turned counterclockwise when the wire 44 is pulled. The hook 42 is adapted to be hooked on the pin 37 at a position where the hole making roller 40 is pushed down by the hole making cam 41. That is, when the wire 44 is pulled by operating the groove forming lever 45 (FIG. 1) and the hook 42 is hooked on the pin 37, the state in which the lower end of the hole making tool 5 protrudes into the ground is maintained. Therefore, when the body 3 is advanced in this state, a groove is formed on the ground by the drill 5.

As shown in FIG. 8, a gear 46 at the left end of the speed change shaft 18 meshes with a gear 48 integral with a chain wheel 47. A transmission shaft 49 is supported at the rear end of the transmission case 3a constituting the body 3 and a chain wheel 50 is rotatably mounted on the transmission shaft 49. A chain 51 is hung on these chain wheels 47 and 50 to change the speed. The rotation of the shaft 18 is transmitted to the chain wheel 50. A pawl clutch 52 is provided on the right side of the chain wheel 50, and the rotation of the chain wheel 50 is transmitted to the transmission shaft 49 or cut off by the movement thereof. The right end of the transmission shaft 49 is connected to the camshaft 31 by a shaft coupling 53.

As shown in FIGS. 8 and 9, a gear is provided at the left end of the transmission shaft 49.
A first gear 55, a second gear 56, and a chain wheel 57 are integrally formed and rotatably supported inside. As for the specific structure, as shown in FIG. 9, the auxiliary shaft 58 extends outward from the left end of the transmission shaft 49 and is supported by the case 59. The cross section of the joint of each shaft is made rectangular. . An inner surface of a cylinder 60 extending rightward from the gear 54 has a rectangular cross section and is engaged with the ends of the transmission shaft 49 and the auxiliary shaft 58. The first gear 55, the second gear 56, and the chain wheel integrally formed.
57 is rotatably attached to the cylinder 60 described above.

A transmission shaft 61 is supported on the case 59 in parallel with the transmission shaft 49. The transmission shaft 61 is supported so as to be movable in the axial direction, has a left end extending out of the case 59, and has a knob 62 attached to a protruding end thereof. The transmission shaft 61 is passed through a gear 63, a first transmission gear 64, a second transmission gear 65, and a collar 66, and these gears 63, 64, 65 are respectively connected to the gear 54, the first gear
55 and the second gear 56 are always engaged. Also, two first keys 67 and a second key 68 are fixed to the transmission shaft 61,
With the movement of the speed change shaft 61, the first key 67 is
a simultaneously meshes with the groove 64a on the inner surface of the first transmission gear 64, or engages only with the groove 63a independently of the groove 64a. When the first key 67 is engaged with the groove 64a, the second key 68 is separated from the groove 65a of the second transmission gear 65 and located inside the collar 66, and when the first key 67 is engaged only with the groove 63a. It is made to engage with the groove 65a. A ball 70 pressed by a spring 69 is provided in the wall of the case 59, and grooves 61a, 61 of the transmission shaft 61 are provided.
b to maintain the above-mentioned meshing position.

A lead cam shaft 71 is supported laterally on the body 3, and the left end of the lead cam shaft 71 reaches the inside of the case 59, and the chain wheel 72 is fixed.
A chain 73 is wound around 57 and the chain wheel 72. The left end of the lead cam shaft 71 extends out of the case 59, and the outer end is formed in a rectangular cross section so that a crank handle, an L-shaped box spanner, and the like can be detachably attached.

As shown in FIG. 1, a seedling mounting table 4 having a belt 74 stretched at the bottom is supported on front and rear support rods 75 and a receiving plate 76 so as to be movable left and right. A pair of support plates 77 extend downward from the left and right sides of the seedling mounting table 4, and both ends of the horizontal bar 78 are fixed to the support plates 77. A metal 79 is fixed to the center of the horizontal bar 78, and the lead cam shaft 71 is passed through the lower end of the metal 79, and the tip of the claw protruding from the metal 79 engages with the lead groove of the lead cam shaft 71. doing. Since this structure is well-known and commonly used in seedling transplanters, illustration is omitted. A plurality of rollers 80 are rotatably mounted on the horizontal bar 78 and support the belt 74 from below.

The rotation of the transmission shaft 49 is transmitted from the gear 54 to the gear 63, and then transmitted to the first transmission gear 64 by the first key 67, and thereafter, the first gear 55, the chain wheel 57, the chain 73, and the chain wheel. After reaching the lead cam shaft 71 through the metal 72, the metal 79 moves right and left along the lead shaft, and moves the seedling mounting table 4. By pulling the knob 62, the transmission shaft 61 is moved to the left, the right of the first key 67 is separated from the groove 64a of the first transmission gear 64, and the second key 68 is engaged with the groove 65a of the second transmission gear 65. Then, the rotation of the gear 63 is controlled by the first key 6
7, transmission shaft 61, second key 68, second transmission gear 65, second gear 5
6 and the chain wheel 57 arrive at the lead cam shaft 71 via this sequence, and move the seedling mounting table 4 right and left at a slightly faster speed than before. The slow transmission is used for picking up 10 seedlings on the seedling mounting table 4 side by side, and the fast transmission is used for picking up 8 seedlings. Here, the first transmission gear 64 has a relationship with the return of the lead groove provided in the lead cam shaft 71.
Groove 64a and the groove 65a of the second transmission gear 65 are limited to one or two. Therefore, when the speed change shaft 61 is moved by pushing and pulling the knob 62 during the interruption of the power transmission, the side surface of the first key 67 or the second key causes the first speed change gear 67 or the second speed change gear to be engaged. There is a case where the gear hits the side surface of the gear 65 and does not bite into the groove. At this time, the crank handle is inserted into the protruding end of the lead cam shaft 71, and the shaft 71 is turned. Then, the chain wheel 72 rotates the chain wheel 57 with the chain 73, the first gear 55 and the second gear 56 rotate the first speed gear 64 and the second speed gear 65, respectively, and the groove 64a and the groove 65a correspond to the first key, respectively. 67
And the second key 68, so that each groove has the first
The key 67 or the second key 68 slides.

As shown in FIG. 1, FIG. 2 and FIG. 8, the planting transmission case 81 extends obliquely upward from the case 59. One end of the first rotating case 82 is rotatably attached to the rear end of the planted transmission case 81, and a chain wheel 83 fixed to the transmission shaft 49 and a chain wheel 84 fixed to the first rotating case 82 are chained. 85 is wound around,
The first rotating case 82 is made to rotate by the power of the engine 1. One end of the second rotating case 86 is the first rotating case
A gear 87 rotatably attached to the other end of the gear 82 and attached so as not to rotate with respect to the planting transmission case 81 is an intermediate gear 88.
Through a gear 89 fixed to the second rotating case 86. When the first rotating case 82 rotates as described above, the second rotating case 86 rotates at the other end. And, when the first rotating case 82 faces up and down, the second rotating case 86 linearly extends up and down from here, and when the first rotating case 82 is horizontal, The second rotating case 86 is the first
It is made to be horizontal in a state of being folded with respect to the rotating case 82.

The seedling rod 6 is attached to the other end of the second rotating case 86. The gear 90 fixedly provided on the first rotating case 81 meshes with the gear 93 of the supporting shaft 92 of the seedling rod 6 via the intermediate gear 91, and even if the second rotating case 86 turns, the seedling rod 6 The vertical posture of the camera is not changed. The seedling-planting rod 6 is made of a pair of left and right holding pieces, and is arranged so as to approach the seedling on the seedling table 4 and open the lower end to release the seedling. A configuration in which the seedlings are scraped off when passing through the end of the seedling mounting table 4 without being opened and closed and the seedlings are pushed out by a pusher at the lower end, or a configuration in which these are combined is also employable. Both configurations are already well known,
Illustration is omitted to prevent the description from being complicated.

That is, at the rear end of the planting transmission case 81, the first rotating case
When 82 rotates, the second rotating case 86 further rotates at the tip.
At this time, the seedling rod 6 keeps the same posture, and when the first rotating case 82 faces up and down, the second rotating case 86 extends up and down from this, and when the first rotating case 82 is in horizontal direction, the second Since the two-rotation case 86 is turned so as to be turned sideways in a folded state, the tip of the seedling rod 6 draws a long elliptical trajectory vertically when viewed from the side. In this way, the tip of the seedling rod 6 passes through the end of the seedling table 4 from top to bottom as shown in FIG. Here, the seedlings are extruded onto the receiving plate 76, and the receiving plate 76 is provided with an outlet 94, so that the seedling planting rod 6 takes out one seedling of seedlings from the outlet 94 and descends. The seedling is inserted into the transplant bed at the bottom of the transplant hole, and then rises.

As shown in FIG. 6 and FIG.
The upper end of 95 is a pin 96 for pivoting the upper end of the lower link 64.
And is rotatably attached to the bracket 32. The right side of the dovetail arm 95 is arranged so that the dovetail roller 97 at the upper end thereof extends upward and comes into contact with the dovetail cam 98 of the camshaft 31. It is configured to be bent in an arc, and its rear end rises upward, and its central portion is recessed in a trapezoidal shape when viewed from above, forming a soil-side surface 7a. The tip of the earthen implement 7 is rotatably attached to the lower end of the earthen arm 95 with a horizontal pin 99. The support arm 100 extends obliquely downward from the pin 96, and the support plate 101 extends rearward from the lower end thereof. The push-out pin 102 whose lower end is fixed to the central portion of the earthen implement 7 is stopped at the upper end thereof through the support plate 101, and a compression spring 103 is attached between the two. It can be pushed down. Both ends of a tension spring 106 are attached to the pin 104 to which the earthen roller 97 is attached and the pin 105 of the bracket 32, and push the lower end of the earthen arm 95 counterclockwise.

FIG. 6 shows a state in which the burrow roller 97 is separated from the burrow cam 98, the burrow arm 95 is turned counterclockwise by the tension spring 106, and the burrower 7 is pushed out later. When the Doro cam 98 comes around and the Doro roller 97 rides on its outer circumference, the Doro arm 95 turns clockwise around the pin 96,
The lower end of the burrow arm 95 pulls back the burrower 7 forward. In this way, the earthen implement 7 repeats the reciprocating motion of back and forth. Further, since the soil embedding tool 7 is pressed against the land by the compression spring 103, when descending, the soil embedding surface 7a at the rear end pushes out the soil and fills the transplant hole in front of the seedling.

The hole-making tool 5, the seedling-planting rod 6, and the soil-adjusting tool 7 are set in the following relationship. That is, when the drilling cam 41 acts on the drilling roller 40 and the drilling tool 5 is lowered,
The burying cam 98 pushes down the burying roller 97, and the burying tool 7 is moved forward as shown in FIG. When the drill 5 rises, the planting rod 6 descends and the seedling is inserted into the bottom of the transplant hole made by the drill 5. At this time, the earthen implement 7 keeps the forward position. When the seedling planting rod 6 starts to ascend after completion of the seedlings, the soil roller 97 separates from the soil cam 98. Then, Doyose arm
95 is pulled by the tension spring 106 and turns in the counterclockwise direction, and the earthen implement 7 moves backward. Then, the front embankment and the like created by the hole making tool 5 are extruded later to refill the hole in front of the seedling.

 It also acts as a suppressant. This is repeated.

In addition, although illustration was abbreviate | omitted, multilingual is not required to be able to provide the same porcelain crushing implement next to and after a seedling.

[Brief description of the drawings]

FIG. 1 is a side view of a part of a seedling plant to which the present invention is applied, FIG. 2 is a plan view thereof, FIG. 3 is an enlarged side view of a drilling tool part, and FIG. Side view, FIG. 5 is a plan view of the rear end of the seedling mounting table, FIG. 6 is a side view of the earthenware part, FIG. 7 is its rear view, FIG. 8 is its transmission mechanism diagram, FIG. 9 is an enlarged plan view of a part of the transmission mechanism. In addition, the code | symbol in a figure is as follows. 5: Punching tools, 6: Planting rods 7: Earthenware

Continuing on the front page (72) Inventor, Norihiro Yano, 1-Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture, Iseki Agricultural Machinery Co., Ltd. Examiner Shoji Yamada (58) Field surveyed (Int. Cl. ⁶ , DB name) A01C 5/04-5/06 A01C 11/02 301-303

Claims (1)

(57) [Claims] 1. A seedling transplanter configured to intermittently form a transplanting hole in the ground while advancing the machine body and to transplant a seedling into the transplanting hole. A seedling transplanter, comprising: a pottery 7 that moves to the seedling side with respect to the ground after the seedling transplantation and brings the soil to the seedling side.