JP2015053901A - Seedling transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seedling transplanter capable of reinforcing a preliminary seedling bed and a front-rear wheel supporting support member mutually.SOLUTION: A moving machine body T is equipped with a seedling planter U and a seedling feeder K, and the moving machine body T is equipped with an engine E and a cradle 7 in front of a transmission case M. From the transmission case M, there is extended backward a main frame 8, to which a control handle H is connected. Front wheels 40A are suspended through a front wheel support arm 67 which is connected to a pair of right and left front square shafts 68 born on the cradle 7, and rear wheels 41A are suspended through a rear wheel transmission case 62 which is born on a pair of right and left axle cases 59 disposed in the transmission case M. The front and rear parts of a longitudinal support 72 are fitted relatively rotatably in the right and left front square shafts 68 and axle cases 59. Over the longitudinal support 72 and the main frame 8, there are connected front and rear leg parts 123F and 123R of a support member 123, and a preliminary seedling bed Y for mounting a seedling N is mounted on right and left support members 123.

Description

  The present invention relates to a seedling transplanter for transplanting seedlings such as tobacco seedlings and lettuce seedlings.

  As disclosed in Patent Document 1, the seedling transplanter is movable up and down periodically by the rotation of the planting drive shaft provided in the movable body and the movable body that is movable across the heel. A seedling planting device having a seedling planting device for planting seedlings while forming a hole for seedling planting by rushing into a cocoon, and a seedling to the seedling planting device located above the seedling planting device and being raised And a preliminary seedling placing table on which a seedling to be planted is placed.

  The preliminary seedling mounting table is supported by one preliminary seedling support reinforcing plate fixed to the mobile body and two preliminary seedling support columns that are erected via a standby seedling support frame that is long in the left-right direction. Has been.

JP 2013-121318 A

In Patent Document 1, there is no support structure that reinforces the front wheel and rear wheel racks that constitute the mobile machine body, and the spare seedling placement table can perform the function of placing the seedlings to be planted. The mechanism that supports the pedestal is only supported by the mobile body, and it is difficult to reinforce other structures.
It is an object of the present invention to provide a seedling transplanter that can solve such problems of the prior art.

  An object of the present invention is to provide a seedling transplanting machine that can reinforce a preliminary seedling stand and a support member for supporting front and rear wheels.

Specific means for solving the problems in the present invention are as follows.
First, a mobile machine body T that can move across the ridge R, and a seedling that is provided on the mobile machine body T and periodically moves up and down to enter the heel R to form a seedling planting hole W1. A seedling planting device U having a seedling planting tool U1 for planting N, and a seedling supply device K that is arranged above the seedling planting device U and supplies the seedling N to the seedling planting tool U1 in the raised position Has
The mobile body T is provided with an engine E and a gantry 7 at the front part of the transmission case M, a main frame 8 is extended rearward from the transmission case M, and a steering handle H is connected to the main frame 8.
A front wheel 40A is suspended via a front wheel support arm 67 connected to a pair of left and right front angle shafts 68 pivotally supported by the gantry 7, and a rear wheel pivotally supported by a pair of left and right axle cases 59 provided in the transmission case M. The rear wheel 41A is suspended via the transmission case 62,
The front and rear portions of the front / rear support body 72 are fitted to the left and right front angle shafts 68 and the axle case 59 so as to be relatively rotatable, and the front and rear legs of the support member 123 span the front / rear support body 72 and the main frame 8. The parts 123F and 123R are connected, and a preliminary seedling stand Y on which the seedling N is placed is mounted on the left and right support members 123.

Second, the preliminary seedling stage Y has a frame Y1 and a bottom plate Y2 for connecting the left and right support members 123, and a plurality of drain holes Ya are formed in the bottom plate Y2. .
Thirdly, the preliminary seedling stand Y protrudes from the mobile machine body T in the left-right direction above the hood B that covers the engine E, and is inclined upward from the rear to the front.

Fourth, each of the left and right rear wheel transmission cases 62 includes a base case 62A connected to the axle case 59 and supporting the front end shaft 58, a front end case 62B supporting the wheel shaft 63 of the rear wheel 41A, and the base case. 62 A and 62 C of front-end | tip cases are connected, and it has the intermediate case 62C which accommodates the transmission means 64 which transmits motive power from the front-end | tip shaft 58 to the wheel shaft 63, It is characterized by the above-mentioned.

Fifth, the seedling planting tool U1 located behind the preliminary seedling stand Y is provided with a vibration means 148 capable of applying a soil dropping vibration when ascending.
Sixth, a bumper 47 is provided at the front of the gantry 7, and a rope hook 47A for hooking the rope is provided on the bumper 47.
Seventh, the transmission case M has a power transmission mechanism 53 that transmits power so that the forward and backward movement of the mobile body T and the operation of the seedling planting device U can be switched, and the switching operation of the power transmission mechanism 53 is performed. A lower portion of the planting clutch lever 115 is supported by the rear portion of the main frame 8 through the operation interlocking member 116, and the rotation angle of the planting clutch lever 115 is between the lower portion of the planting clutch lever 115 and the main frame 8. Positioning means 121 is provided, and an operation panel 122 is disposed almost directly above the positioning means 121, and the operation panel 122 is attached to the steering handle H.

According to the present invention, it is possible to mutually reinforce the preliminary seedling stand and the support member for supporting the front and rear wheels.
That is, the invention according to claim 1 is configured such that the front and rear portions of the front and rear support 72 are fitted to the front angular shaft 68 for suspending the front wheel 40A and the axle case 59 for suspending the rear wheel 41A so as to be relatively rotatable. Since the front and rear legs 123F and 123R of the support member 123 are connected across the front and rear support body 72 and the main frame 8, and the spare seedling stand Y for placing the seedling N on the left and right support members 123 is mounted, Since the support member 123 that supports and reinforces the wheels 40A and 41A can be firmly attached to the main frame 8, and the spare seedling stand Y on which the seedling N is placed is mounted on the pair of left and right support members 123, the spare seedling The stand Y and the left and right support members 123 can be reinforced mutually.

In the invention according to claim 2, since the preliminary seedling stand Y has a large number of drain holes Ya formed in the bottom plate Y2, water falling from the seedling N can be normally excluded.
In the invention according to claim 3, since the preliminary seedling stand Y protrudes from the mobile body T in the left-right direction and is inclined upward from the rear to the front, the accompanying worker can easily take out from the preliminary seedling Y. it can.

In the invention according to claim 4, the rear wheel transmission case 62 is composed of three parts: a base case 62A, a tip case 62B, and an intermediate case 62C. Even if the intermediate case 62C has different lengths, the base case 62A and the tip case 62B A rear wheel transmission case 62 that can be connected and has different leg lengths can be formed.
In the invention according to claim 5, since the seedling planting tool U1 is provided with the vibrating means 148, the seedling planting tool U1 can be vibrated to drop the attached soil.

In the invention according to claim 6, since the rope hook 47A for hooking the rope is provided on the bumper 47 provided at the front portion of the gantry 7, the rope can be hooked and fixed at the time of vehicle transportation.
In the invention according to claim 7, the planting clutch lever 115 for switching the power transmission mechanism 53 in the transmission case M is supported by the rear portion of the main frame 8, and the lower portion of the planting clutch lever 115 and the main frame 8 are Since the positioning means 121 for setting the rotation angle of the planting clutch lever 115 is provided in between, the switching operation of the planting clutch lever 115 can be performed accurately, and is attached to the steering handle H substantially above the positioning means 121. Since the operation panel 122 is disposed, the planting clutch lever 115 is in a substantially vertical posture, and the rotation operation is facilitated.

1 is an overall perspective view of a seedling transplanter showing an embodiment of the present invention. It is the same whole side view. It is the same whole top view. It is a rear view of a mobile body. It is a side view of the front part of a mobile body. It is a top view of the front part of a mobile body. It is a side view of a seedling planting device and a seedling supply device. It is a top view of a seedling planting device and a seedling supply device. It is a side view of a seedling supply device. It is a top view of a seedling supply device. It is a side view of the principal part of a seedling planting apparatus. It is a top view of a seedling planting apparatus. It is a side view of an expansion hole digging mechanism and a planting depth adjustment mechanism. It is a top view of an expansion hole digging mechanism and a planting depth adjustment mechanism. It is a rear view of an expansion hole digging mechanism and a planting depth adjustment mechanism. It is a side view of the principal part of an expansion hole digging mechanism. It is explanatory drawing which shows the digging operation | movement latter half of an expansion digging mechanism. It is explanatory drawing which shows immediately after the digging operation | movement start of an expansion digging mechanism. It is explanatory drawing which shows the middle of a digging operation | movement of an expansion digging mechanism. It is explanatory drawing which shows the seedling planting operation | movement during a digging operation | movement. It is a side view which shows a back-and-front stand and a reserve seedling stand. It is a top view which shows the front part of a moving body, and a reserve seedling stand. It is a front view which shows a front stand and a bumper.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1-4, while walking in the longitudinal direction across the ridge R, walking for planting seedlings N called cell-molded seedlings such as cigarettes and vegetables, soil block seedlings, pot seedlings, etc. at predetermined intervals A mold seedling transplanter 1 is illustrated.
The seedling transplanting machine 1 is roughly divided into a movable mobile body T that can travel, a seedling planting device U that is provided at the rear of the mobile body T, and a seedling planting device U that is provided at the upper rear of the seedling transplanting device U. A seedling supply device K that supplies the seedling N to the attaching device U, an enlarged hole digging mechanism 130 that forms an enlarged hole W2 in the ridge R, and a preliminary seedling stand Y that is arranged on the front upper part of the moving machine body T over the left and right. ing.

  The mobile machine body T has a base 7 projecting forward from the mission case M and mounted with an engine (drive source) E on its upper part, and a main frame 8 is attached to the rear part of the mission case M, thereby constituting the machine body T1. A steering handle H is connected to the rear portion of the machine body T1, that is, the rear end of the main frame 8, and the front traveling device 40 having the front wheels 40A and the rear traveling device 41 having the rear wheels 41A are connected by the transmission case M and the mount 7. Suspended.

Although the front traveling device 40 may be a crawler type, the front traveling device 40 has a pair of left and right front wheels 40 </ b> A that rolls in the intercostal groove, and the left and right positions can be adjusted with respect to the mobile machine body T. The rear traveling device 41 may be a crawler type, but has a pair of left and right rear wheels 41A that rolls in the intercostal groove, and the left and right positions of the mobile device body T can be adjusted.
1 to 8, 21, and 22, a transmission case M receives power from an engine E through a belt transmission means 52, shifts the power through a power transmission mechanism 53 having a clutch and a transmission mechanism, and the like. Travel power is output from the travel output shaft 54 and work power is output from the transplant output shaft 55. The power transmission mechanism 53 enables switching between forward and backward movement of the mobile body T and the operation of the seedling planting device U.

The travel output shaft 54 penetrates the mission case M and protrudes left and right. The telescopic transmission shaft 57 is connected to both left and right ends, and the tip shaft 58 is directly connected to the tip of the telescopic transmission shaft 57. The tip shaft 58 is inserted into and supported by the axle case 59.
The axle case 59 has an attachment member 61 fixed to the side surface of the transmission case M, an outer cylinder case 59A supported by the attachment member 61, and an inner cylinder case 59B inserted into the outer cylinder case 59A.

3 to 6 and 22, the attachment member 61 has a travel output shaft 54 inserted therein, and an external cylinder case 59 </ b> A supported rotatably around the travel output shaft 54. A rear interlocking arm 66 is provided. The inner cylinder case 59B has a rectangular tube shape, and is inserted into the outer cylinder case 59A so as to be integrally rotatable and adjustable in the left-right direction.
The upper end of the rear wheel transmission case 62 is connected to the outer end in the left-right direction of the inner cylinder case 59B, the tip shaft 58 is supported on the upper portion of the rear wheel transmission case 62, and the rear wheel 41A is supported on the lower portion. A wheel shaft 63 is supported, and chain transmission means 64 is provided between the tip shaft 58 and the wheel shaft 63.

The power from the travel output shaft 54 is transmitted to the rear wheel 41A via the telescopic transmission shaft 57, the tip shaft 58, the chain transmission means 64, and the wheel shaft 63. Note that the position of the rear wheel 41 </ b> A can be changed in the left-right direction with respect to the wheel shaft 63.
Each of the left and right rear wheel transmission cases 62 is made of cast, and is connected to an axle case 59 and supports a tip shaft 58, a tip case 62B that supports a wheel shaft 63 of the rear wheel 41A, and the base. An intermediate case 62 </ b> C is provided that connects the case 62 </ b> A and the tip case 62 </ b> B and houses the transmission means 64 that transmits power from the tip shaft 58 to the wheel shaft 63.

The mobile machine body T may produce models with different leg lengths of the front traveling device 40 and the rear traveling device 41. In this case, the rear wheel transmission case 62 of the rear traveling device 41 is different from the intermediate case 62C having a different length. What is necessary is just to connect between common base case 62A and front-end | tip case 62B. In order to change the leg length of the front traveling device 40, a front wheel support arm 67 having a different length is prepared.
In FIGS. 1 to 3, 5, 6, and 21 to 23, the left and right front wheels 40 </ b> A are respectively supported by a lower portion of a front wheel support arm 67 through a front shaft 67 a so that the left and right front wheels 40 </ b> A are rotatable and left and right. A rectangular tube portion 67b is provided on the upper portion of the front shaft 68, and is attached to the angular shaft portion of the front angular shaft 68 so as to be capable of changing the position in the left-right direction and swinging integrally.

The left and right inner end sides of the left and right front angle shafts 68 are supported by a front support bracket 69 provided at the front portion of the gantry 7 so as to be rotatable around the front horizontal shaft 69a. A front interlocking arm 70 is attached to the angular shaft portion of the front angular shaft 68 so as to be integrally rotatable, and an interlocking rod 71 is connected to the tip of the front interlocking arm 70.
The rear end of the interlocking rod 71 is connected to the rear interlocking arm 66 of the outer cylinder case 59A, and the rotation of the outer cylinder case 59A is transmitted to the front angle shaft 68. The angle of the rear wheel transmission case 62 centered on the outer cylinder case 59A and the angle of the front wheel support arm 67 centered on the front angle shaft 68 are simultaneously changed to the same angle, so that the mobile body T can be raised and lowered in a horizontal posture. ing.

  The left and right front corner shafts 68 and the left and right outer cylinder cases 59A are fitted with front and rear portions of a front and rear support 72 so as to be relatively rotatable. The case M is connected to a support member 73 made of a fixed pipe on the bottom surface of the case M, and the front end shaft 68 and the outer case 59A are projected from the mobile body T by the front and rear support bodies 72 and the support member 73. The part is rotatably supported.

  2, 5, and 23, a bumper 47 that protrudes forward from the front angle shaft 68 and the front interlocking arm 70 is provided at the front portion of the gantry 7. A front rope hook 47A is provided for hooking and fixing the rope when the machine 1 is carried on a truck. The rear rope hook 48 is provided on the steering handle H as shown in FIGS.

2 to 6, an elevating mechanism 42 is provided between the gantry 7 of the mobile machine body T and the rear wheel transmission case 62. The platform 7 is provided with a lifting cylinder 75 for moving up and down the mobile body T and a shaft support 76 that is pushed and pulled back and forth by the lifting cylinder 75, and a rolling shaft 77 is rotatably supported by the shaft support 76. Has been.
Lifting levers 77a and 77b and a rolling arm 77c are fixed to the rolling shaft 77. The elevating levers 77a and 77b protrude from the left and right ends of the rolling shaft 77 in diametrically opposite directions, and are connected via an interlocking member 79 and an interlocking link 79 provided on the outer cylinder case 59A, to the tip of the rolling arm 77c. Is connected to a rolling cylinder 74 supported by a shaft support 76.

When the rolling cylinder 74 extends and contracts, the rolling shaft 77 is rotated via the rolling arm 77c, the lifting levers 77a and 77b are swung in the opposite directions, and the left and right outer cylinder cases are connected via the interlocking member 78 and the interlocking link 79. By rotating 59A in the reverse direction, one of the left and right sides of the mobile body T is raised and the other is lowered to tilt left and right. These constitute the rolling means of the lifting mechanism 42.

The telescopic operation of the lift cylinder 75 causes the shaft support 76, the rolling shaft 77, and the lift levers 77a and 77b to move back and forth integrally, and rotate the left and right outer cylinder cases 59A in the same direction via the interlocking member 78 and the interlocking link 79. The mobile body T is moved up and down. These constitute the lifting means of the lifting mechanism 42.
The elevating mechanism 42 may be constituted only by elevating means that causes the moving body T to elevate by the elevating cylinder 75, omitting rolling means such as the rolling arm 77c and the rolling cylinder 74.

7, 8, 11, 12, and 21, the main frame 8 is attached to the rear portion of the mission case M, and a planting frame 82 is attached to the lower side of the main frame 8. A work transmission case 83 is mounted on the side (left side).
The planting frame 82 includes a left and right plate member 82A fixed to the rear portion of the mission case M and the front portion of the main frame 8, a U-shaped auxiliary plate 82B connected to the rear portion of the left and right plate member 82A, and the auxiliary plate 82B. It is comprised from the connection member 82C which connects the rear part of board 82B to the front-and-rear halfway part of the main frame 8. FIG.

The front part of the work transmission case 83 is located on the side surface of the transmission case M and supports the front shaft 84 directly connected to the transplantation output shaft 55, and the rear part of the work transmission case 83 supports the drive shaft 85, A chain transmission means is provided between 84 and the drive shaft 85, and the drive shaft 85 serves as a common power transmission shaft for the seedling planting device U and the seedling supply device K.
The driving shaft 85 has a concentric left and right short shaft 85a pivotally supported by the planting frame 82, an arm 85b provided at the inner ends of both the short shafts 85a, and a link shaft 85c installed on the left and right arms 85b. 8 and 12, the left short shaft 85a and the link shaft 85c constitute a planting drive shaft 30 for driving the seedling planting device U, and the right short shaft 85a. Controls the seedling supply device K.

7 to 12 and 21, the seedling supply device K has a turntable S that can rotate intermittently around the vertical axis 10, and a large number of the seedling supply devices K are arranged around the turntable S to store and drop seedlings N. A seedling supply tool K1 and a supply drive mechanism K2 that drives the turntable S in synchronization with the vertical movement of the seedling planting tool U1 are provided.
The right short shaft 85a of the driving shaft 85 is a transmission start end of the supply interlocking means 13 of the supply drive mechanism K2. A brake disc 86 is fixed to the right short shaft 85a, and a concave portion is formed on the outer periphery of the brake disc 86. In addition, the roller 87a of the brake arm 87 is elastically pressed by a spring 87b, and the brake disc 86 is braked so that the right short shaft 85a stops at a fixed position.

A support member 19 is erected on the main frame 8, and a vertical axis support portion 19 a to which a vertical axis 10 that rotatably supports the turntable S is attached and a horizontal axis 14 are rotatable. A horizontal axis support portion 19b to be supported and a peripheral support portion 19c are provided.
In the turntable S, a large number of seedling supply tools K1 are arranged at equal intervals in the circumferential direction around the disk. The seedling supply tool K1 includes a supply cup 34 having an outer supply cup 34a and an inner supply cup (sleeve) 34b inserted therein and substantially containing the seedling N, and below the bottom opening of the outer supply cup 34a. The shutter 35 is provided so as to be openable and closable via a hinge 35a, and receives a seedling N, and a biasing means (spring) 37 that biases the shutter 35 in the opening direction.

Both the outer supply cup 34a and the inner supply cup 34b have a trumpet shape in which the inner diameter increases from the lower side to the upper side, and FIGS. 7, 9, and 21 illustrate three types of the inner supply cup 34b having different inner diameters. Depending on the size, type, and the like of the seedling N, one type is used at the same time.
The lower part of the various supply inner cups 34b has a smaller inner diameter than the outer supply cup 34a and is detachably fitted into the outer supply cup 34a, and is fitted around the upper edge of the upper and lower supply cups 34a on the outer peripheral surface thereof. An annular fitting portion 34c is formed.

The supply inner cup 34b has a fitting portion 34c, so that the supply inner cup 34b can be mounted in an appropriate posture without inclination with respect to the outer supply cup 34a.
Fourteen seedling supply tools K1 are provided. The number of seedling supply tools K1 may be 7 or 8. However, it is preferable to arrange 12 to 17 seedling supply tools. By transplanting the number, the transplanting speed can be doubled and the transplanting operation can be performed. Every other 14 supply cups 34 are marked so that two accompanying workers supply the seedlings N alternately.

The disk of the turntable S is made of sheet metal, and is mounted and mounted on the upper surface of a disk-shaped mounting body 20 provided at the top of the vertical axis 10. Between the mounting body 20 and the turntable S, phase adjusting means 21 for adjusting the phase in the rotational direction of the turntable S is provided.
The phase adjusting means 21 includes a plurality of (three places) arc holes 21A in the circumferential direction formed in an arc shape on the turntable S with the longitudinal axis 10 as the center of curvature, and the mounting body 20 penetrating the arc holes 21A. The turntable S can be rotated about the longitudinal axis 10 and the position of the seedling supply tool K1 in the rotational direction can be finely adjusted by loosening the fastener 21B.

The vertical axis 10 is supported by a vertical axis support part 19a of a support member 19, and has a worm wheel 22 at the lower part. A worm gear 23 meshing with the worm wheel 22 is supported by a horizontal axis support part 19b. The horizontal shaft 14 is provided on the shaft 14 and is intermittently driven by the power from the planting drive shaft 30 (the right short shaft 85a) via the supply interlocking means 13.
Below the turntable S, a shutter closing member 36 that opens and closes the shutter 35 is received by the peripheral support portion 19 c of the support member 19. The shutter closing member 36 has a bar-like annular shape in plan view, and is disposed close to the lower surface of the shutter 35 of the seedling supply tool K1.

The turntable S rotates clockwise in FIGS. 3 and 8, and the seedling supply tool K1 on the turntable S opens the shutter 35 at the position moved to the center in the left-right direction of the main frame 8 and supplies the seedling N by dropping. It becomes seedling supply position P.
The shutter closing member 36 has an annular front portion protruding forward, and the front portion thereof corresponds to the seedling supply position P. In the rotation direction of the turntable S, the seedling supply position P other than the seedling supply position P is provided. From the front to immediately before the seedling supply position P, the shutter 35 is closed from the open posture, and at the seedling supply position P, the shutter 35 is released from being closed because the rear end of the shutter closing member 36 is a free end. .

  The annular shutter closing member 36 has an arcuate shape substantially concentric with the vertical axis 10 and the turntable S, and a midway closing portion 36b in which the shutter 35 is closed from the front of the seedling supply position P to immediately before the seedling supply position P, and a seedling The supply position P is inclined upward from the front and connected to the midway closing part 36b and the shutter 35 is closed from the open position, and the start end closed part 36c is connected to the start end closed part 36c and opened at the seedling supply position P. It has the open part 36a located in the front side, and the connection part 36d which connects this open part 36a and the midway closing part 36b.

The start end closing portion 36c of the shutter closing member 36 has a linear shape, and is inclined frontward and laterally in the plan view from the start end of the arc-shaped midway closing portion 36b, and is inclined downward in the side view.
The open portion 36a extends in a circular arc shape from the start end of the start end closing portion 36c in a plan view in a direction opposite to the rotation direction of the turntable S, and extends along the arc of the outer peripheral portion of the turntable S. As shown in FIGS. 7 and 9, the shutter 35 that is separated downward from the outer peripheral portion of the lens and is opened by the biasing means 37 can be received in a substantially vertical posture.

The connecting portion 36d of the shutter closing member 36 connects the start end side of the opening portion 36a and the rear portion of the midway closing portion 36b, but leaves the rear end of the midway closing portion 36b as a free end, It is connected in front of the rear end, and the shutter closing member 36 has a continuous ring shape to improve the shape retention strength.
Since the rear end of the midway closing portion 36b is a free end that is not connected to the connecting portion 36d, the shutter 35 is closed while it is in contact with the free end of the midway closing portion 36b and passes through the free end. Thus, the urging means 37 is suddenly and reliably released and comes into contact with the opening 36a.

The supply drive mechanism K2 is constituted by the vertical axis 10, the horizontal axis 14, the supply interlocking means 13 and the like of the turntable S, and the supply interlocking means 13 is constituted by the right short axis 85a of the driving shaft 85, the brake disk 86 and the like. ing.
The supply driving mechanism K2 is connected to a driving shaft 85 that drives the seedling planting tool U1, and power is transmitted from the driving shaft 85, so that the seedling planting tool U1 and the raising / lowering operation are synchronized. Each time the shaft 85 is rotated, one seedling supply tool K1 is intermittently moved to the seedling supply position P, and the seedling planting tool U1 is moved up and down once.

  2 to 4, 7, 8, 11, 12, and 17 to 20, the seedling planting device U is a pair of first pivots that are pivotally supported on the front upper portions of the left and right plate members 82 a of the planting frame 82 of the mobile machine body T. A link 26, a planting rocking body 27 provided on the pair of first links 26, a pair of second links 28 pivoted on the planting rocking body 27 and extending rearward and upward, and the pair of first links The seedling planting tool U1 supported at the tip of the two links 28 so as to be openable and closable, a rotating arm 29 (arm 85b) connected to one of the pair of second links 28 via a link shaft 85c, and the rotating arm 29 Has a planting drive shaft 30 (short shaft 85a) and a discharge means 95, and also includes a planting depth adjusting mechanism 44, an enlarged digging mechanism 130, and the like.

  The planting drive shaft 30 and the rotary arm 29 are a short shaft 85a and an arm 85b on the left side of the driving shaft 85, and the link shaft 85c revolves via the arm 85b when the short shaft 85a rotates once. The seedling planting tool U1 at the tip of the second link 28 is vertically long while being constrained by the swinging of the pair of first links 26 by rotating the front and rear intermediate portions of the pair of second links 28 in a circular shape. An elliptical locus L (shown in FIG. 18) is moved.

The seedling planting tool U1 has a substantially bowl shape in a side view of the internal cavity, and is opened so that the seedling N can be supplied to the support body 96 from the upper side, and the support body 96 attached to the tips of the pair of second links 28. It has a guide member 97 and a pair of front and rear scissors members 98 which are pivotally supported by the support body 96 and whose lower portions can be inserted into the scissors R.
The pair of heel members 98 are pivotally supported at the upper part so that the lower part can be opened and closed. The seedlings are held inside while entering the ridges R by periodic (intermittent) vertical movement to form the seedling planting holes W1. N is configured to be released downward.

The discharge means 95 includes a support arm 95a pivotally supported by the planting rocking body 27, a rod 95b connecting the support arm 95a and one hook member 98, and the other hook member 98 in conjunction with the other hook member 98. An interlocking pin 95c that reversely swings the member 98 and a cam 95d that swings the support arm 95a up and down are provided.
The cam 95d is provided on the link shaft 85c, revolves around the short shaft 85a, abuts on the middle part of the support arm 95a, swings it up and down, and the seedling planting tool U1 is dead in the vertical movement range. When lowered to the vicinity of the point, one hook member 98 swings outward by the rod 95b and the support arm 95a of the discharge means 95, and the swing of one hook member 98 is swung by the interlocking pin 95c. Is caused to swing in the opposite direction, whereby the pair of eaves members 98 are opened (state of FIG. 17).

  The seedling planting tool U1 is in a state in which the pair of heel members 98 are closed at the top dead center of the vertical movement range, and is positioned immediately below the seedling feeding tool K1 of the turntable S at the seedling feeding position P, and the seedling feeding tool K1. The seedlings N are fed from the top dead center, moved forward and downward from the top dead center, rushed into the heel R from the middle, and the pair of heel members 98 were opened as the bottom dead center was approached to form a seedling planting hole W1. At the same time, the seedling N is released, and after the seedling is released, the pair of heel members 98 are closed and moved rearward and upward.

The back-and-forth movement of the seedling planting tool U1 in the substantially elliptical locus L is canceled because the mobile body T is moving forward, and the seedling planting tool U1 enters in a posture that is nearly perpendicular to the heel R and is nearly perpendicular. Pull out in a posture and plant the seedling N in a substantially upright posture.
A vibration means 148 is provided on the seedling planting tool U1. The vibration means 148 is configured by attaching a handle to a pivot pin of the second link 28 connected to the seedling planting tool U1. Since the seedling planting tool U1 is in the raised position when not planting, it can be vibrated by holding the handle of the vibration means 148, and the seedling planting tool U1 is vibrated and attached to the soil. Can be dropped. Since this vibration means 148 is disposed behind the preliminary seedling stand Y, it can be easily operated from the accompanying space G side.

  2 to 8 and 13 to 15, a grounding body 43 that is grounded and rolled to detect the top surface of the ridge R and level the ground is disposed in front of the seedling planting tool U1. This grounding body 43 constitutes a planting depth adjusting mechanism 44 that adjusts the height of the mobile machine body T and the seedling planting tool U1 relative to the upper surface of the ridge and sets the planting depth of the seedling planting tool U1. The planting depth adjusting mechanism 44 is adjusted by an adjusting lever 45 provided on the steering handle H.

The grounding body 43 has a cylindrical shape (or substantially drum shape) that rolls over a wide position at a position where the seedling N on the upper surface of the bud is to be planted, and is rotatable around the horizontal axis via a support shaft 106 at the rear portion of the support frame 105. It is supported. The left and right front portions of the support frame 105 are pivotally supported by a support member 73 fixed to the lower portion of the transmission case M via a bracket 73 a and a support shaft 107 so as to be vertically swingable.
A cylindrical material 111 is fitted on the left support shaft 107, and a first sensor arm 108 is provided on the cylindrical material 111, and an upper end of the first sensor arm 108 is lifted via a second sensor arm 109. 110, the lift valve 110 is disposed in the upper part of the transmission case M and controls the lift cylinder 75.

Further, the cylinder member 111 is provided with a bifurcated arm 112, and a spring 113 is provided between the first arm 112 a of the bifurcated arm 112 and the support frame 105 to urge the grounding body 43 toward the flange R side. The front end of the outer cable 114 a of the Bowden cable 114 for connecting to the adjustment lever 45 is connected to the second arm 112 b of the bifurcated arm 112.
The adjustment lever 45 is pivotally supported at the rear part of the main frame 8 via a pivot, and a cable arm that rotates together with the adjustment lever 45 and the support frame 105 are connected by an inner cable 114b of the Bowden cable 114, The tip of the cable 114b is hooked to the support frame 105.

  By operating the adjustment lever 45 back and forth, the angle between the support frame 105 and the first sensor arm 108 changes via the Bowden cable 114, and the support frame 105 swings up and down to change the height of the grounding body 43. Then, the relative heights of the mobile body T and the seedling planting tool U1 with respect to the grounding body 43 are adjusted. The bottom dead center of the vertical movement of the seedling planting tool U1 is determined by the height of the grounding body 43 when the lifting valve 110 is in the neutral state, and the depth of penetration from the upper surface of the heel R is determined. The planting depth of the attachment U1 is set.

  When the grounding body 43 is grounded to the heel R at the set height, the lift valve 110 is in a neutral state and the mobile machine body T is not raised or lowered, but when the height of the grounded heel R changes, for example, When the height is increased, the grounding body 43 and the support frame 105 swing upward, and the first sensor arm 108 is moved downward via the tubular member 111 and the two-arm 112, thereby operating the lift valve 110 and moving the lift cylinder 75. The front and rear wheels 40A and 41A are extended and the moving machine body T is relatively raised, and the seedling planting tool U1 is adjusted to the set height from the upper surface of the heel R.

  When the adjustment lever 45 swings forward, the support frame 105 moves downward via the inner cable 114b, the grounding body 43 moves downward from the mobile machine body T, and the first sensor arm 108 and the second sensor arm 109 move upward. Then, the elevating valve 110 is operated to control the elevating cylinder 75 to the ascending side. Therefore, the height of the mobile body T and the seedling planting tool U1 is increased from the upper surface of the cocoon, and the planting depth by the seedling planting tool U1 is shallow, that is, the height of the bottom dead center of the seedling planting tool U1 is shallow. Become.

Conversely, when the adjustment lever 45 is swung rearward, the support frame 105 moves upward, and the lifting cylinder 75 is controlled to the lowering side via the first sensor arm 108, the second sensor arm 109, and the lifting valve 110, and is grounded. The body 43 approaches the mobile machine body T, the height of the mobile machine body T and the seedling planting tool U1 is lowered from the upper surface of the heel, and the planting depth by the seedling planting tool U1 is increased.
The steering handle H is provided with a guide member 120 for guiding the swinging of the adjustment lever 45 back and forth. The guide member 120 and the adjustment lever 45 are arranged on the side of the turntable S. In front of the gripping portion of the handle H and on the left and right sides of the turntable S, the turntable S is disposed at substantially the same height as the seedling supply tool K1.

In FIGS. 1 to 3, an accompanying space where an operator who supplies the seedling N to the seedling supply tool K1 can be accompanied with the seedling transplanter 1 in front of the grip portion of the steering handle H and on both the left and right sides of the turntable S. G, and the worker in the left accompanying space G supplies the seedling N to the seedling supply tool K1,
The adjustment lever 45 can be operated in the same posture.
1 to 3, 21, and 22, a preliminary seedling stand Y on which the seedling N is placed is arranged in the front upper part of the mobile machine body T. The front and rear portions of the front and rear support body 72 are fitted to the left and right front angle shafts 68 and the axle case 59 so as to be relatively rotatable, and the front and rear leg portions of the support member 123 span the front and rear support body 72 and the main frame 8. 123F and 123R are connected, and the spare seedling stand Y is mounted on the left and right support members 123.

  The preliminary seedling table Y has a frame Y1 and a bottom plate Y2 for connecting the left and right support members 123. The frame Y1 is an angle material (or band plate) assembled in a rectangular shape, and two plate materials Y1a in the middle of the left and right. The front and rear angle members are connected to each other, the left and right angle members are connected to the middle part of the front and rear by one plate member Y1a, and the two left and right plate members Y1a are connected to the left and right support members 123. It is formed of a perforated plate and has a number of drainage holes Ya.

This preliminary seedling stand Y protrudes from the mobile body T in the left-right direction above the hood B that covers the engine E, and is inclined upward from the rear part to the front part. N is easily taken out.
The seedling N supplied to the seedling supply tool K1 is grown in a state of being put in a cell tray (nursing seedling tray), and is placed on the spare seedling stand Y together with the cell tray, and the seedling N is taken out from the cell tray and the seedling supply tool K1 is placed. Supplied to.

The steering handle H is provided with a traveling clutch lever portion 124, a planting clutch lever 115, a fuselage raising / lowering lever 126, and the like. The traveling clutch lever portion 124 is disposed on the left side of the steering handle H and Similar to the adjustment lever 45, it is arranged at a position where the worker walking in the left accompanying space G can operate.
2, 3, 7, and 8, the planting clutch lever 115 has a lower portion penetrating and supported by a bracket 117 fixed to the rear portion of the main frame 8, and a rotating body 118 is fixed to the lower portion thereof. The operation interlocking member 116 is connected to the power transmission mechanism 53, and the operation interlocking member 116 is operated to switch the power transmission mechanism 53.

A plate member 117A having a V-shape in plan view is fixed to the bracket 117, and two adjustment bolts 117B are screwed to the plate member 117A. The two adjustment bolts 117B are configured such that the rotating body 118 is rotated clockwise or counterclockwise. Abuts when rotated clockwise.
The two adjusting bolts 117 </ b> B constitute positioning means 121 that sets the rotation angle of the planting clutch lever 115 between the lower portion of the planting clutch lever 115 and the main frame 8.

The power transmission mechanism 53 is disposed in the mission case M and transmits power so that the forward and backward movement of the mobile body T and the operation of the seedling planting device U can be switched. The rotation angle of the positioning means 121 is adjusted to make the switching position of the planting clutch lever 115 appropriate.
The planting clutch lever 115 rises substantially directly above the bracket 117, and is bent at a substantially right angle at the upper part penetrating the operation panel 122. The planting clutch lever 115 is in an upright posture, and the operation panel 122 is positioned almost directly above the positioning means 121. Therefore, the switching rotation operation is easy to perform and the switching position is also easy to see.

2, 4, 21, and 23, a front stand 127 and a rear stand 128 that are lifted and held for a long-time stop or maintenance are provided in the front and rear lower portions of the mobile body T so as to be movable forward and backward.
The front stand 127 is pivotally supported by the gantry 7 and can be changed between a standing posture and a retracted posture, and a pair of left and right support columns 127a whose upper part is swingably connected to the front portion of the gantry 7, There is a reed portion 127b that connects the lower portions of the left and right support columns 127a and projects outward from the left and right support columns 127a to the left and right.

The rear stand 128 is pivotally supported at the rear portion of the main frame 8 or the connecting member 82C and can be changed between a standing posture and a retracted posture. And a horizontal flange portion 128b that connects the lower portions of the left and right support column portions 128a, and is U-shaped in a rear view.
As shown in FIG. 21, the stand height of the rear stand 128 is set higher than the stand height of the front stand 127, and the front stand 127 and the rear stand 128 are raised from the state where the front wheel 40A and the rear wheel 41A are grounded. When the standing posture is brought into contact with the ground, the mobile body T is inclined forward and downward.

In such a standing posture, even if the front wheel 40A is grounded, the rear wheel 41A can be lifted. Thereby, the left / right rear wheel 41A can be easily adjusted in the left / right position, that is, the wheel distance.
2 to 8 and 13 to 20, an enlarged hole digging mechanism 130 that forms an enlarged hole W <b> 2 is disposed behind the grounding body 43 immediately before the seedling planting tool U <b> 1. The enlarged hole digging mechanism 130 is located below the first link 26, the planting rocking body 27, and the second link 28 of the seedling planting device U.

  The expansion hole digging mechanism 130 is provided at a rear portion of the support rod 132 and a support rod 132 that is pivotally supported by the moving body T and moves up and down in conjunction with the vertical movement of the seedling planting tool U1. The support rod 132 is moved downward to enter the rod R to form an enlarged hole W2 from the rear to the front of the position where the seedling planting hole W1 is to be formed, and a midway portion in the front-rear direction of the support rod 132. There is an urging member 133 that urges upward, and an operation member 134 that is interlocked and connected to the middle part in the front-rear direction of the support rod 132 and that moves downward by the rotation of the planting drive shaft 30 to lower the support rod 132. ing.

  The support rod 132 is long in the front-rear direction, has a cylindrical body 132A and a stopper 132B at the front end, and has a V-shaped attachment body 132C in plan view at the rear end, and the cylindrical body 132A is the transmission case M. The stopper 132B is in contact with the support member 73 when the support rod 132 is raised to its highest position and restricts its rise. It is like that.

The saddle member 131 is formed by bending a plate material. The right and left wing portions 131L and 131R which enter the saddle R and push the clay from the center side to the left and right, and the lower portions of the left and right wing portions 131L and 131R. And a scooping portion 131S that scoops up the clay.
The flange member 131 is bolted at the center of the left and right wings 131L and 131R to the mounting body 132C at the rear end of the support rod 132 so that the height can be adjusted, and the vertical width gradually increases from the left and right ends to the center. In addition, the lower edge of the scooping portion 131S has a bottom shape when viewed from the front.

In addition, the flange member 131 is formed so that the vertical width is gradually widened from the left and right ends to the center portion, the left and right wing portions 131L and 131R form left and right inclined surfaces with the center portion leading from the left and right ends, and the scoop portion 131S is the left and right wing Projecting downward from the lower edges of the portions 131L and 131R to form a front-upward inclined surface, and the lower edge of the scooping portion 131S has a bottom shape when viewed from the front.
And the heel member 131 is arrange | positioned in the proximity | contact position where the rear part of right-and-left wing | blade part 131L, 131R overlaps with the seedling planting tool U1 at the time of a seedling planting operation start in the front-back direction at the time of a stand-by posture.

  The ridge member 131 enters the upper surface of the ridge R from before the position where the seedling planting hole W1 is to be formed, digs while pushing the clay from the center side to the left and right, and becomes deepest at the formation position. A hole is dug up ascending from the formation position. In the entire drilling process, since the scooping part 131S scoops up the clay and digs it, there is little resistance received from the clay, the residual soil in the final stage is less, and the paddle member 131 is shallower than the seedling planting hole W1. A large and wrinkle-shaped enlarged hole W2 that becomes the bottom at the planned formation position of the seedling planting hole W1 can be formed.

As shown in FIG. 17, the flange member 131 is slightly tilted backward from the start of digging of the enlarged hole W2 to before the end, as shown in FIG. 17, and ascended and waiting as shown in FIG. Becomes leaning forward. Further, since the front fulcrum of the support rod 132 is located far away from the rod member 131, the rod member 131 moves up and down in the vertical direction as much as possible.
The support rod 132 is bent upward so that the midway portion in the front-rear direction avoids interference with the grounding body 43 and approaches the planting drive shaft 30, and the support plate 132 a and the bar material 132 b are disposed in the middle of the support rod 132. The guide pin 132c is fixed.

The lower end of a tension spring as the biasing member 133 is hooked to the bar 132b of the support rod 132, and the upper end of the tension spring is connected to an adjustment rod (not shown) provided on the main frame 8, and The biasing force for lifting the support rod 132 is adjusted by the position adjustment.
13 to 20, the planting drive shaft 30 supports a link shaft 85c via a rotating arm 29 (arm 85b) on a short shaft 85a to which rotational power is transmitted, and swings on the link shaft 85c. A base portion of the arm 135 is pivotally supported, and an operating member 134 is pivotally supported at the tip of the swing arm 135. The rotation of the short shaft 85a causes the link shaft 85c to revolve with a circular locus J through the arm 85b.

  The actuating member 134 has a shape in which a four-leg plate is fixed to a cylindrical boss member. The boss member is connected to a swing arm 135 via a swing shaft 137 and is positioned on the upper side in FIG. The leg part is formed with a regulating part 134a, the small shaft 140 is fixed to the leg part located on the upper front side, the roller 141 is fitted to form the push-down part 134b, and the guide pin is placed on the leg part located on the lower front side A long hole 142 fitted to 132c is provided to form a swing guide part 134c, and a stopper part 134d is formed on a leg part located on the rear upper side.

The push-down portion 134b of the actuating member 134 allows the roller 141 to come into contact with the abutting plate 132a, and the push-down portion 134b moves downward to push down the front and rear intermediate portions of the support rod 132.
When the operating member 134 rotates about the swing shaft 137, the restricting portion 134 a of the operating member 134 can abut against the base portion of the swing arm 135 and restrict upward rotation.

  The long hole 142 of the swing guide part 134c is fitted to the guide pin 132c, and the support rod 132 is always urged upward by the urging member 133, so that the guide pin 132c is at the upper end of the long hole 142. At one time, an upward biasing force is applied to the actuating member 134, biasing the restricting portion 134a in a direction in contact with the base portion of the swing arm 135, and the guide pin 132c is moved downward through the long hole 142. Allowed.

The stopper portion 134d can be brought into contact with the base portion of the swing arm 135, and restricts the operation member 134 from rotating around the swing shaft 137 by a predetermined angle or more in the counterclockwise direction in FIG.
When the restricting portion 134 a is restricted from turning upward by the urging force from the support rod 132 and is in contact with the swing arm 135, the actuating member 134 is pushed down by the swing arm 29 together with the swing arm 135. However, the rotation around the short shaft 85a causes the operating member 134 to move downward along with the downward rotation of the link shaft 85c, and this rotation causes the roller 141 of the push-down portion 134b to come into contact with the contact plate 132a of the support rod 132. And the support rod 132 is lowered.

  When the link shaft 85c and the swinging shaft 137 are linearly arranged below the short shaft 85a, that is, when the rotating arm 29 and the swinging arm 135 are linear, it is when the saddle member 131 is lowered most. When the link shaft 85c revolves beyond that state, the swing arm 135 is rotated in the opposite direction by the urging force from the support rod 132, and the actuating member 134 of the operating member 134 once leaves the base of the swing arm 135. . At this time, the rotation of the actuating member 134 around the swing shaft 137 is restricted by contacting the swing arm 135.

Further, when the link shaft 85c revolves and moves upward, the restricting portion 134a comes into contact with the swing arm 135 again, and the operating member 134 moves upward with the upward movement of the link shaft 85c.
FIG. 13 shows a state where the seedling planting tool U1 and the heel member 131 are substantially at the top dead center, FIG. 18 shows a state immediately after the start of the seedling planting operation of the seedling planting apparatus U, and FIGS. FIG. 17 shows the second half of the digging operation of the enlarged digging mechanism 130. FIG.

In FIGS. 13 and 16-20, the rotation of the short shaft 85a causes the link shaft 85c to revolve while drawing a circular locus J centered on the short shaft 85a, and the second link 28 is moved up and down while moving back and forth. The hook U1 is moved up and down so as to draw a locus L, and the heel member 131 is moved up and down by the revolution of the link shaft 85c in conjunction with the movement of the lower half of the locus L of the seedling planting tool U1.
In FIG. 18, the pivot arm 29 has a center line Q in a substantially horizontal posture (crank angle of about 1 °), the tip of the seedling planting tool U1 is positioned substantially at the center in the vertical direction of the locus L, and the rod member 131 is Start biting into R and start forming the enlarged hole W2.

At this time, the restricting portion 134a of the actuating member 134 is in contact with the swing arm 135 and the upward rotation is restricted, and the roller 141 of the push-down portion 134b is in contact with the abutting plate 132a of the support rod 132 to push down the support rod 132. To start.
In FIG. 19, when the short shaft 85a rotates and the pivot arm 29 has a center line Q in a forward downward posture (crank angle of about 30 °), the rod member 131 gradually bites into the rod R. The tip of the member 98 digs into the ridge R from the upper surface of the enlarged hole W2 formed by the ridge member 131. When the crank angle near 60 ° in FIG. 20 is reached, the digging into the ridge R of the ridge member 131 becomes deeper. The formation of the seedling planting hole W1 by the member 98 is also rapidly performed.

From the above state, the rotation of the short shaft 85a further advances, and until the link shaft 85c moves almost directly below the short shaft 85a, the discharge means 95 starts to operate by the cam 95d, and the heel member 98 of the seedling planting tool U1 is moved. At the same time as forming the seedling planting hole W1 by opening, the stored seedling N is dropped and planted.
When the link shaft 85c moves almost directly below the short shaft 85a, the hook member 98 is opened most widely, and when the pivot arm 29 and the swing arm 135 are linear, the hook member When 131 is lowered most, the lowest bottom of the bowl-shaped enlarged hole W2 is formed at the formation planned position of the seedling planting hole W1.

When the swing arm 135 passes through the linear state with the rotating arm 29, the swinging arm 135 rotates around the link shaft 85c because the elongated hole 142 of the actuating member 134 is linked to the guide pin 132c. The actuating member 134 rotates counterclockwise until the stopper portion 134d contacts the base of the swing arm 135.
In this state, the eaves member 98 is opened most greatly, but the support eaves 132 are pulled up by the urging member 133, and the operation member 134 is moved upward by the elevating of the support eaves 132.

When the rotating arm 29 is further rotated by the short shaft 85a, the swing arm 135 is pulled rearward and upward, the operating member 134 is rotated in cooperation with the guide pin 132c, and the restricting portion 134a is rotated by the swing arm. 135, but allows the support rod 132 to move upward, and the bite member 131 bites into the rod R gradually becomes shallower.
Then, when the crank angle reaches 180 ° in FIG. 17, the heel member 98 comes out of the seedling planting hole W1 and starts the closing operation, and the heel member 131 also comes out of the heel R upward.

  The enlarged hole W2 is larger and shallower than the seedling planting hole W1, overlaps with the seedling planting hole W1, and is deepest at the seedling planting hole W1 in a side view, In front view, the arc shape of the lower edge 131a of the heel member 131 is deepest at the seedling planting hole W1, and the irrigation that has entered the enlarged hole W2 enters the deepest seedling planting hole W1. It gathers and is effectively supplied to the seedling N.

  Even if the ridge member 98 of the seedling planting tool U1 enters the ridge R from the beginning when the ridge member 131 starts digging the enlarged hole W2, its tip has a pointed shape so that the resistance is small, and the enlarged hole W2 is broken. There is nothing. Since the enlarged hole W2 is formed in advance, the succeeding seedling planting tool U1 can pierce the heel member 98 deeply with a smaller resistance than in the case without the enlarged hole W2, thereby forming a deep seedling planting hole W1. And seedlings N can be planted deeply.

The transplanting operation by the seedling transplanter 1 will be described.
While moving the seedling transplanter 1 along the heel R, the worker walks along the follower space G behind the left rear wheel 41A as the mobile machine body T advances, and the seedlings placed on the spare seedling stand Y are The pot seedling N in the tray is supplied to each seedling supply tool K1. In the case of one-person work, the seedlings N are continuously introduced into the respective seedling supply tools K1, and in the case of two-person work, each person is charged into every other seedling supply tool K1.

  The power branched from the traveling drive system of the transmission case M transmits power from the planting drive shaft 30 to the planting drive mechanism U2 of the seedling planting device U, so that the seedling planting tool U1 has a substantially elliptical shape that is long vertically. Periodically moving up and down while drawing the locus L, moving up and down the eaves member 131 of the enlarged hole digging mechanism 130 in conjunction with the up and down movement of the seedling planting tool U1, and transmitted to the planting drive mechanism U2. The motive power is branched from the planting drive shaft 30 and transmitted to the supply drive mechanism K2 of the seedling supply device K, and the turntable S is intermittently driven around the vertical axis 10.

As the turntable S rotates, a number of seedling supply tools K1 move intermittently on the circular orbit. In the seedling planting tool U1, the shutter 35 is closed by the middle closing part 36b of the shutter closing member 36, the seedling N is supplied thereon, and before the seedling planting tool U1 reaches the seedling supply position P, the shutter is closed. When the seedling planting tool U1 reaches the seedling supply position P after passing through the rear end of the member 36, the shutter 35 is instantaneously opened by the urging means 37 and the seedling N is dropped, and immediately below the seedling supply position P. It supplies to the seedling planting tool U1 which has come to the top dead center.

  The seedling planting tool U1 of the seedling planting device U receives the seedling N supplied from the seedling supply tool K1 near the top dead center, moves downward along with the movement of the mobile machine body T, and pierces the heel R until reaching the bottom dead center. While opening and forming the seedling planting hole W1, the seedling N stored in the inside is discharged to the heel R and closed while moving upward. The vertical movement and the opening / closing operation are periodically performed in synchronization with the rotation of the turntable S, and seedlings N are planted on the ridges R at regular intervals.

When it is desired to adjust the penetration depth of the seedling planting tool U1 with respect to the upper surface of the heel R, that is, the planting depth, an operator in the left wake space G moves the adjustment lever 45 of the planting depth adjusting mechanism 44 back and forth. It swings and the set height of the grounding body 43 is changed.
Prior to the seedling planting hole W1 of the seedling planting tool U1 of the seedling planting tool U1, the maximum depth is reached at a position where the collar member 131 gradually becomes deep while piercing the heel R and the seedling planting hole W1 is to be formed. When the heel member 98 is separated from the seedling planting hole W1, the heel member 131 is also moved upward to reach the standby position.

In the present invention, the shape of each member and the positional relationship between the front, rear, left, and right in the embodiment are best configured as shown in FIGS. However, it is not limited to the said embodiment, A member, a structure can be variously deformed, and a combination can also be changed.
For example, the flange member 131 may be directly fixed to the rear end of the support rod 132, or the left and right wing portions 131L and 131R may be separately formed and fixed to the attachment body 132C.

In the turntable S, stud bolts may be planted on the mounting body 20, and the arc holes 21A of the turntable S may be fitted to the stud bolts and fixed with nuts.
The spare seedling stand Y may project the front and rear leg portions 123F and 123R downward from itself and use the front and rear leg portions 123F and 123R as support members 123.
In addition, the seedling transplanting machine 1 has a pair of left and right pressure-reducing wheels that come into contact with the heel R on the rear side of the planting frame 82 on the rear side of the seedling planting tool U1 so that the height can be adjusted. Roll the left and right sides of the planting position of the seedling N, and press the soil on both the left and right sides of the seedling N introduced into the seedling planting hole W1 formed by the seedling supply tool K1 with the left and right pressing wheels to cover the soil. May be.

DESCRIPTION OF SYMBOLS 1 Seedling transplanter 7 Stand 8 Main frame 10 Vertical axis 20 Mounted body 21 Phase adjustment means 30 Planting drive shaft 34 Supply cup 40A Front wheel 59 Axle case 62 Rear wheel transmission case 67 Front wheel support arm 68 Front angle shaft 72 Front and rear support body 122 Operation panel 123 Support member 123F, 123R Front and rear legs 130 Enlarged hole digging mechanism 131 Scissors member 131L, 131R Left and right wing parts 131S Scoop part 132 Support rod H Steering handle J Circular locus K Seedling supply device K1 Seedling supply tool K2 Supply drive mechanism L Trajectory M Mission case N Pot seedling N Seedling R タ ー ン S Turntable T Mobile body T1 Machine body U1 Seedling tool W1 Seedling hole W2 Expansion hole Y Spare seedling stand

Claims (7)

A mobile machine body (T) movable across the cocoon (R), and provided in the mobile machine body (T), periodically moves up and down to enter the cocoon (R) to enter a seedling planting hole (W1) ) And a seedling planting device (U) having a seedling planting tool (U1) for planting a seedling (N), and a seedling planting plant located above the seedling planting device (U). A seedling supply device (K) for supplying seedlings (N) to the tool (U1),
The mobile body (T) is provided with an engine (E) and a gantry (7) at the front of the mission case (M), and a main frame (8) is extended rearward from the mission case (M). 8) The steering handle (H) is connected to
The front wheel (40A) is suspended via a front wheel support arm (67) connected to a pair of left and right front angle shafts (68) pivotally supported by the gantry (7), and a pair of left and right provided on the transmission case (M). The rear wheel (41A) is suspended via a rear wheel transmission case (62) pivotally supported by the axle case (59).
The front and rear support portions (72) are fitted to the left and right front angle shafts (68) and the axle case (59) so as to be relatively rotatable, and the front and rear support portions (72) and the main frame (8). The front and rear legs (123F, 123R) of the support member (123) are connected to each other, and the spare seedling stand (Y) for mounting the seedling (N) is mounted on the left and right support members (123). A seedling transplanter characterized by.   The preliminary seedling stand (Y) has a base frame (Y1) and a bottom plate (Y2) for connecting the left and right support members (123), and a plurality of drain holes (Ya) are formed in the bottom plate (Y2). The seedling transplanter according to claim 1, wherein the seedling transplanter is provided.   The preliminary seedling stand (Y) protrudes left and right from the mobile body (T) above the hood (B) covering the engine (E) and is inclined upward from the rear to the front. The seedling transplanter according to claim 1 or 2, characterized by the above.   Each of the left and right rear wheel transmission cases (62) is connected to the axle case (59) and supports the base case (62A) supporting the tip shaft (58) and the wheel shaft (63) of the rear wheel (41A). An intermediate case for housing the tip case (62B), the base case (62A) and the tip case (62B), and storing the transmission means (64) for transmitting power from the tip shaft (58) to the wheel shaft (63). The seedling transplanter according to any one of claims 1 to 3, wherein (62C) is included.   The seedling planting tool (U1) at a position rearward of the preliminary seedling stand (Y) is provided with a vibration means (148) capable of applying a vibration for dropping soil when rising. The seedling transplanter according to any one of the above.   The bumper (47) is provided in the front part of the said base (7), The rope hook (47A) for rope hooking is provided in this bumper (47), The any one of Claims 1-5 characterized by the above-mentioned. The seedling transplanter according to item 1.   The transmission case (M) has a power transmission mechanism (53) that transmits power so that the forward and backward movement of the mobile body (T) and the operation of the seedling planting device (U) can be switched, and this power transmission mechanism ( 53) The lower portion of the planting clutch lever (115) for performing the switching operation via the operation interlocking member (116) is supported by the rear portion of the main frame (8), and the lower portion of the planting clutch lever (115) and the main frame are supported. (8) is provided with positioning means (121) for setting the rotation angle of the planting clutch lever (115), and an operation panel (122) is disposed substantially above the positioning means (121). The seedling transplanter according to any one of claims 1 to 6, wherein the operation panel (122) is attached to the steering handle (H).

Images