JP2023166590A - Transplanter - Google Patents

Abstract

To provide a transplanter that enables simplification of the configuration of a drive force control mechanism for intermittently lifting up and down a planting tool.SOLUTION: A planter is provided, including: a pair of left and right driven front wheels (121) and driving rear wheels (122); a planting tool (151) that plants a transplant while being lifted up and down by a planting tool lifting mechanism (140); a seedling feed-table-type transplant feeding mechanism (160) that feeds the transplant to the planting tool (151); and a handle frame (102). The handle frame (102) is disposed so as to be biased toward one of the left side and the right side of the vehicle body. A plurality of planting tool lifting mechanisms (140) is installed side by side in the left and right direction of the vehicle body.SELECTED DRAWING: Figure 3

Description

The present invention relates to a transplanter, such as a vegetable seedling transplanter.

A transplanting machine is known that has a planting tool that performs a planting operation while being raised and lowered, and a planting tool lifting mechanism that uses driving force transmitted from an engine to raise and lower the planting tool intermittently. (For example, see Patent Documents 1 and 2).

Patent No. 6319206 Patent No. 6766851

However, in the conventional transplanting machine described above, the configuration of the driving force control mechanism for intermittent lifting and lowering of the planting tool is not necessarily simple.

An object of the present invention is to provide a transplanter that can simplify the configuration of a driving force control mechanism for intermittent raising and lowering of a transplanter.

The first invention is
a pair of left and right driven front wheels (121) and a driving rear wheel (122);
A planting tool (151) that performs planting work of a transplant while being raised and lowered by a planting tool lifting mechanism (140);
a seedling supply table-type transplant supply mechanism (160) that supplies the transplant to the planting tool (151);
A handle frame (102);
The handle frame (102) is biased toward one of the left side and the right side of the vehicle body,
This transplanter is characterized by having a plurality of planting tool lifting mechanisms (140) arranged in parallel in the left and right direction of the vehicle body.

The second invention is
Each of the plurality of planting tool elevating mechanisms (140) has a planting tool elevating case (141) that accommodates a planting tool elevating clutch (142), and a drive that transmits driving force to each of the plurality of planting tool elevating mechanisms (140). It has a driving force control case (131) which is a force control mechanism (130),
The transplanting machine according to claim 1, wherein the planting tool lifting case (141) and the driving force control case (131) are separate bodies.

The third invention is
The driving force control mechanism (130) has a camshaft (132) for controlling the elevation of the planting tool (132), the shaft longitudinal direction of which is in the left-right direction of the vehicle body;
The transplanting machine according to claim 2, wherein the planting tool lifting/lowering check cam (133) of each of the plurality of planting tools (151) is attached to a planting tool lifting/lowering check camshaft (132).

The fourth invention is
4. The implanter according to claim 2 or 3, wherein the implant supply mechanism drive shaft (136) that drives the implant supply mechanism (160) is taken out from the drive force control case (131).

According to the present invention, since the handle frame (102) does not get in the way during planting work, planting can be performed in the center in the left-right direction of the vehicle body.

Further, it is possible to simplify the configuration of the driving force control mechanism (130) for intermittent lifting and lowering of the planting tool (151).

Moreover, it is possible to improve the degree of freedom regarding the arrangement of the planting tool lifting mechanism (140).

It is also possible to transmit the driving force to the implant supply mechanism (160) independently of the intermittent raising and lowering of the planting tool (151).

Left side view of a transplanter according to an embodiment of the present invention A schematic partial left side view of the vicinity of the driving force control mechanism and planting tool elevating mechanism of the transplanter according to the embodiment of the present invention A schematic partial plan view of the vicinity of the driving force control mechanism and planting tool elevating mechanism of the transplanter according to the embodiment of the present invention A schematic partial plan view of the vicinity of the driving force control mechanism of the transplanter according to the first modification of the embodiment of the present invention (a) Partial left side view (part 1) of a camshaft for restraining the raising and lowering of a planting tool and a cam for restraining the raising and lowering of a planting tool in a transplanter according to an embodiment of the present invention, (b) A planting implement of a transplanter according to an embodiment of the present invention Partial left side view (part 2) of the lifting check camshaft and the planting tool lifting check cam, (c) Partial left side view of the planting tool lifting check camshaft and the planting tool lifting check cam of the transplanter according to the embodiment of the present invention (Part 3), (d) A partial left side view of the planting tool elevating and lowering check camshaft and the planting tool lifting and lowering check cam of the transplanter according to the embodiment of the present invention (Part 4), (e) Partial left side view (Part 5) of the planting tool elevating check camshaft of the transplanter and the planting tool elevating check cam, (f) The planting tool elevating check camshaft and the planting tool elevating check cam of the transplanting machine according to the embodiment of the present invention Partial left side view (part 6), (g) Partial left side view of the planting tool elevating and lowering check camshaft of the transplanter according to the embodiment of the present invention and the planting tool lifting and lowering check cam (part 7), (h) The present invention Partial left side view (Part 8) of the planting tool elevating check camshaft and the planting tool elevating check cam of the transplanter of the embodiment in (i) The planting tool elevating check camshaft of the transplanter of the embodiment in the present invention and Partial left side view of the planting tool elevating and lowering check cam (Part 9), (j) Partial left side view of the planting tool lifting and lowering check cam shaft and the planting tool lifting and lowering check cam of the transplanter of the embodiment of the present invention (Part 10), (k) Partial left side view (eleventh) of the planting tool elevating and lowering check camshaft and the planting tool elevating and lowering check cam of the transplanting machine according to the embodiment of the present invention, (l) Planting of the transplanting machine according to the embodiment of the present invention Partial left side view of the camshaft for restraining the raising and lowering of planting implements and the cam for restraining the raising and lowering of planting implements (Part 12) A partial perspective view of the vicinity of the irrigation device of the transplanter according to the embodiment of the present invention (Part 1) Partial perspective view of the vicinity of the irrigation device of the transplanter according to the embodiment of the present invention (Part 2) Partial perspective view of the vicinity of the irrigation device of the transplanter according to the embodiment of the present invention (Part 3) Partial perspective view of the vicinity of the irrigation device of the transplanter according to the embodiment of the present invention (Part 4) Partial perspective view of the vicinity of the irrigation device of the transplanter according to the embodiment of the present invention (Part 5) A partial perspective view of the vicinity of the irrigation device of the transplanter according to the embodiment of the present invention (Part 6) (a) A schematic partial plan view of the vicinity of the suppression device of the transplanter according to the second modification of the embodiment of the present invention, (b) The vicinity of the suppression device of the transplantation machine of the second modification of the embodiment of the present invention Schematic partial cross-sectional view of A schematic partial plan view of the vicinity of the suppression device of the transplanter according to the third modification of the embodiment of the present invention

Embodiments of the present invention will be described in detail with reference to the drawings.

The same applies to the following, but some components may not be shown in the drawings, or may be shown in perspective or omitted.

First, the configuration and operation of the transplanter 100 of this embodiment will be specifically described with reference mainly to FIGS. 1 to 4.

Here, FIG. 1 is a left side view of a transplanter 100 according to an embodiment of the present invention, and FIG. 2 is a left side view of a transplanter 100 according to an embodiment of the present invention, near the driving force control mechanism 130 and the planting tool lifting mechanism 140. FIG. 3 is a schematic partial left side view of the transplanter 100 according to the embodiment of the present invention, and FIG. It is a typical partial plan view of the driving force control mechanism 130 vicinity of the transplantation machine 100 of the first modification of the embodiment in the invention.

The transplanting machine 100 moves on a traveling device 120 having a pair of left and right driven front wheels 121 and a driving rear wheel 122 in response to a manual control operation or an automatic control operation, and uses a planting device 150 having a planting tool 151 to plant the transplanted material. This is a transplanter, such as a vegetable seedling transplanter, that performs planting.

The planting tool elevating mechanism 140 is a mechanism that uses the driving force transmitted from the engine 110 to intermittently raise and lower the planting tool 151, which performs the planting operation of the transplant while being raised and lowered.

The driving force control mechanism 130 is a mechanism that controls transmission on/off of driving force.

The planting tool elevating mechanism 140 as the planting part assembly is arranged to be placed in the space above the transmission 111 as the traveling part and does not interfere with the driving force control mechanism 130, so the range of adjustment between plants is sufficiently wide. The driving force control mechanism 130 realizes intermittent driving of the planting tool 151 at various timings.

The driving force control mechanism 130, also called the interplant case, is arranged in the space between the transmission 111, also called the travel transmission case, and the planting implement lifting mechanism 140. Since the driving force control case 131 of the driving force control mechanism 130 is a different case from the planting tool elevating case 141 of the planting tool elevating mechanism 140, the degree of freedom in layout regarding component arrangement is improved.

The height of the driving force control case 131 is approximately the same as the height of the driving force control mechanism transmission shaft 113, which is a transmission output shaft from the transmission 111 to the driving force control mechanism 130. Therefore, by arranging the driving force control mechanism 130 lower than the planting tool lifting mechanism 140, a lower center of gravity is promoted, and the power is directly transmitted by the driving force control mechanism transmission shaft 113 without using a transmission chain. Since the transmission is performed, the configuration can also be simplified.

Transmission of power from the driving force control mechanism 130 to the planting tool elevating mechanism 140 is performed by a planting tool elevating mechanism transmission chain 135 wound around the planting tool elevating mechanism transmission chain shaft 134 of the driving force control mechanism 130, and the planting tool elevating mechanism 140 Since the height of the mechanism 140 is not required to be the same as the height of the planting tool lifting mechanism transmission chain shaft 134, the degree of freedom in layout regarding component arrangement is improved.

The planting tool elevating mechanism 140 includes a planting tool elevating clutch 142 that turns on and off the transmission of driving force, and a planting tool elevating and lowering restraining arm 143 that controls the planting tool elevating clutch 142 so that the driving force is transmitted on and off. have

The driving force control mechanism 130 includes a planting tool elevating and lowering restraining cam 133 for controlling the planting tool elevating and lowering restraining arm 143 so that the transmission of the driving force is turned on and off.

The rod cam 140b rotates once each time the planting tool elevating clutch 142 is turned on, and one drive in the vertical direction of the elevating link of the planting tool elevating mechanism 140 configured by using the connection plate 140a is performed. This is done in response to the contact between the two. Of course, the shape of the planting tool elevating/lowering restraining cam 133 is determined depending on the period of such intermittent contact of the bar cam 140b. Since it is not necessary to change the vehicle speed by operating the speed change lever or to energize the solenoid, it is possible to simplify the configuration of the driving force control mechanism 130 for intermittent raising and lowering of the planting tool 151.

Since the planting tool elevating and lowering restraining cam 133 can reliably operate the planting tool elevating and lowering restraining arm 143, the intermittent driving of the planting tool 151 is performed stably.

The planting tool elevating mechanism 140 is arranged in the space above the driving force control mechanism 130 so that the planting tool elevating case 141 does not overlap the driving force control case 131 in plan view. The flexibility of layout is improved.

The planting tool elevating mechanism 140 includes a planting tool elevating case 141 that accommodates a planting tool elevating clutch 142.

A part of the planting tool elevating and lowering restraining arm 143 is drawn out from the planting tool elevating case 141 so as to come into contact with the planting tool elevating and lowering restraining cam 133.

It is sufficient if the planting tool elevating and lowering restraining arm 143 is arranged in an overlapping manner in the space below the planting tool elevating case 141 so as to be in contact with the planting tool elevating and lowering restraining cam 133.

Since the horizontal width of the planting tool elevating case 141 is approximately the same as the horizontal width of the planting tool 151, also called a planting hopper, a compact configuration is realized.

The transplant supply mechanism 160 is a mechanism that supplies a transplant to the planting tool 151 using the driving force transmitted from the engine 110.

The driving force to the transplant supply mechanism 160 is transmitted from a predetermined location on the upstream side of the planting tool elevating clutch 142 in the driving force transmission path to the planting tool elevating clutch 142, or from a driving force transmitting path to the planting tool elevating and lowering restraining cam 133. It is transmitted from a predetermined location.

For example, a transplant supply mechanism drive shaft 136, also called a table drive shaft for driving a so-called seedling supply table of the transplant supply mechanism 160, is drawn out from the drive force control case 131. Therefore, the effect of turning on and off the transmission of the driving force by the driving force control mechanism 130 is unlikely to occur, so that stable continuous rotation of the seedling supply table is reliably performed.

Such deceleration for continuously rotating the seedling supply table is performed by using a reduction gear mechanism that is a reduction gear mechanism below the seedling supply table. Since it is possible to adopt a configuration in which a reduction mechanism is not provided on the side of the driving force control case 131, not only a compact configuration can be realized, but also a reduction ratio suitable for the size of the seedling supply table can be set. The reduction mechanism on the side provides flexibility.

Note that a plurality of planting tools 151 may be provided side by side in the left-right direction of the vehicle body (see FIG. 4).

The driving force control mechanism 130 has a planting tool elevating/lowering check camshaft 132 whose longitudinal direction is in the left-right direction of the vehicle body.

The planting tool elevating/lowering check cam 133 of each of the plurality of planting tools 151 is attached to the planting tool elevating/lowering check camshaft 132 .

The configuration in which a large number of planting tool lifting/lowering mechanisms 140 are lined up allows so-called multi-row planting. Since there is substantially no member protruding laterally when viewed from the planting tool 151 in the left-right direction of the vehicle body, a narrow planting row interval is realized. Since each planting tool elevating mechanism 140 operates independently, staggered planting or parallel planting can be performed freely by changing the check timing flexibly, and the planting tool 151 can be moved so as not to get in the way when turning. A configuration is adopted in which the stop position of 151 substantially coincides with the top dead center position of the planting hopper, regardless of the check timing.

Even in a configuration in which a large number of planting tool elevating mechanisms 140 are utilized, a planting tool elevating and lowering camshaft 132 for driving the planting tool elevating and lowering restraining cam 133 and a planting tool elevating and lowering mechanism for driving the planting tool elevating mechanism transmission chain 135 are used. By extending the mechanism transmission chain shaft 134 in the left-right direction of the vehicle body, a large number of planting tool elevating mechanisms 140 can be driven by a single driving force control mechanism 130.

The planting assisting mechanism 170 is a mechanism that uses the driving force transmitted from the engine 110 to assist in planting a transplant.

The driving force to the planting auxiliary work mechanism 170 is transmitted from a predetermined location on the downstream side of the planting tool elevating clutch 142 in the driving force transmission path to the planting tool elevating clutch 142.

A planting auxiliary working mechanism drive shaft 144, also called a PTO shaft, for driving the irrigation device 1000 or the fertilizing device of the planting auxiliary working mechanism 170 is drawn out from the planting tool elevating mechanism 140. Therefore, since the driving force control case 131 does not overlap the planting auxiliary working mechanism drive shaft 144 which is the PTO shaft part in plan view, the planting auxiliary working mechanism driving shaft 144 not only does not get in the way when the shaft is used, but also controls the driving force. Even in a configuration in which a large number of planting tool lifting mechanisms 140 are used, while effectively utilizing the on/off transmission of driving force by the mechanism 130, stable driving of the optional planting auxiliary work mechanism 170 is performed by each planting tool lifting mechanism 140. The drive is reliably performed in the same phase as the drive.

The handle frame 102 is a frame that is biased toward one of the left side and the right side of the vehicle body.

Due to such a handle offset, the handle frame 102 does not get in the way during planting work, so that not only can planting be performed in the center in the left-right direction of the vehicle body, but also the seedling table can be easily supplied from the opposite side in the front-back direction of the vehicle body.

The boarding and alighting step 103 is a step located on the other of the left side and the right side of the vehicle body.

Since the getting on/off step 103 is attached to the traveling gear transmission chain case 112 on the opposite side of the handle frame in the left-right direction of the vehicle body, getting on/off using the getting on/off step 103 is easy.

An empty space is secured at the center of the stand 104 in the left-right direction of the vehicle body, and when planting in the center in the left-right direction of the vehicle body, the stand 104 does not get in the way of what is called a sensor plate, so the grounding position of the left and right stand poles of the stand 104 is fixed. are located on both sides of the ridge, and there is almost no roughness in the planting position due to the use of stands in the ridge.

As shown in FIGS. 5(a) to 5(l), the planting tool elevating/lowering check camshaft 132 is a hexagonal shaft to which the planting tool elevating/lowering check cam 133 is firmly fixed with a push bolt.

Here, FIGS. 5(a) to 5(l) are partial left side views (parts 1 to 10) of the planting tool elevating/lowering restraining camshaft 132 and the planting tool elevating/lowering restraining cam 133 of the transplanter 100 according to the embodiment of the present invention. 2).

In FIGS. 5(a) to 5(f), normal cam assembly of the planting tool lifting/lowering check cam 133 is performed, and in FIGS. 5(g) to 5(l), by using the cam plate upside down. , reversing cam assembly is being performed.

Of course, the planting tool lifting mechanism transmission chain shaft 134 to which the sprocket of the planting tool lifting mechanism transmission chain 135 is fixed may also be a hexagonal shaft.

Not only is the degree of freedom in the layout of the arrangement of the planting tool lifting case 141 improved, but by changing the assembly of the planting tool lifting and lowering check cam 133 by selecting the hexagonal axis phase, the check timing can be flexible for staggered planting or parallel planting. Changes can be made freely.

This is because the cam plate shape of the planting tool elevating/lowering check cam 133 is bilaterally symmetrical, and as described above, the cam plate can be turned upside down.

That is, since the planting tool elevating and lowering check cam 133 is assembled so that the left-right symmetrical axis of the planting tool elevating and lowering check cam 133 is located between the hexagonal axis of symmetry of the planting tool elevating and lowering check camshaft 132, the planting tool is lifted and lowered. The phase difference between the phase of the check cam 133 and the phase of the planting implement lifting check camshaft 132 is considered to be 15 degrees, and by using hexagonal shaft phase selection and turning over the cam plate, the deviation is 30 degrees (=15×2 12 (=360/30) types of restraint timings are realized by phase selection of ) degrees.

Next, the configuration and operation of the transplanter 100 of this embodiment will be described in more detail with reference mainly to FIGS. 6 to 11.

Here, FIGS. 6 to 11 are partial perspective views (parts 1 to 6) of the vicinity of the irrigation device 1000 of the transplanter 100 according to the embodiment of the present invention.

In FIGS. 6, 7 and 9, some of the components are shown cut away to reveal cross-sections for ease of understanding.

A collar member 1130 is inserted into a bushing member 1120 arranged to be attached to a horizontal hole bored into a piston 1100 of the irrigation device 1000 in the left-right direction of the vehicle body. Compared to a configuration in which a screw hole is drilled into the end surface of the piston 1100 and the rod end is arranged, the cost of the components is not only kept low, but also the piston length of the piston 1100 can be easily adjusted, resulting in a simple configuration. Along with cost reductions, a so-called adjustment-less configuration is realized.

The bushing member 1120 arranged to be attached to the above-mentioned horizontal hole is a bushing member with a hole for grease lubrication, and is bored so that the grease nipple member 1140 penetrates toward the piston end surface of the piston 1100. It is attached to the tip of the tapped hole. Maintenance by injecting grease into the rod end of the piston end face is facilitated, and the durability of the bushing member 1120 as a rotating part, which is a consumable item, is improved.

The plate member 1210 of the crank 1200 has a double structure for sandwiching the plate member 1110 of the piston 1100 as a base plate, and the slit width in such a double structure is approximately the same as the distance across opposite sides of the bolt head of the bolt member 1150. Therefore, the plate member 1110 can be firmly fixed by tightening with the bolt member 1150, the collar member 1130, and the nut member 1160, which are normal standard parts. The use of standard parts eliminates the need for special threaded pins that require so-called double-sided chamfering, thereby simplifying the configuration and reducing costs.

A bolt member inserted through a long hole 1211 of a plate member 1210 of the crank 1200 on the drive output side is fastened to a tap hole drilled on the piston 1100 side. Therefore, the crank phase can be arbitrarily changed over 360 degrees, and adjustment is easy when the square axis phase of the drive output shaft for the optional planting auxiliary working mechanism 170 is not determined.

Since the joint 1300, which is an L-shaped joint, is attached to the downstream side of the irrigation cylinder output shaft of the piston 1100, even if the space in the depth direction is narrow, the irrigation hose can be easily routed due to this space saving. This improves the degree of freedom in layout regarding component arrangement.

A recess 1111 is provided at a predetermined position of the plate member 1110, which is sandwiched between the plate member 1210 that is the crank plate member, as a mark that indicates the crank assembly phase, so it is placed in the plate member 1110 that serves as the base plate. By selecting an appropriate crank mounting hole from among the plurality of crank mounting holes provided, the crank can be mounted at a position slightly beyond the piston top dead center position of the piston 1100, which is the planting part stop position. It can be done easily. When the planting part drive shaft stops when the piston 1100 has slightly exceeded the top dead center, the negative pressure inside the irrigation cylinder generates a force that rotates the drive shaft in the forward direction. With this attachment, the assist function of the irrigation device 1000, which moves the drive shaft in advance when the planting section is stopped, is exhibited.

Next, referring mainly to FIGS. 12(a) and 12(b), the configuration and operation of the transplanter 100 of this embodiment will be described in more detail.

Here, FIG. 12(a) is a schematic partial plan view of the vicinity of the suppression device 2000 of the transplanter 100 according to the second modified example of the embodiment of the present invention, and FIG. It is a typical AA partial sectional view of the vicinity of the suppression device 2000 of the transplanter 100 of the second modified example of the configuration.

A pressure roller 2100, also referred to as a pressure wheel, is attached to the pressure arm 2200 along with a scraper 2400.

The arm root portion of the suppression arm 2200 is attached to a suppression rod 2300 whose longitudinal direction extends in the left-right direction of the vehicle body. The suppressing rod 2300 is rotatably assembled to, for example, the main frame 101, which is the main body frame, so that the suppressing rod is firmly supported at two locations.

The suppressing arm member 2210 is not only a member to which a pin for pressing a so-called safety stop switch on the suppressing roller 2100 side is attached, but also a member for attaching the arm base of the suppressing arm 2200 to the suppressing rod 2300. For example, the arm root of the suppression arm 2200 is securely attached to the suppression rod 2300 by pushing out a bolt member with a weld nut member attached to the hub.

By installing the suppression arm 2200 in this manner, a total of four sets of suppression rollers 2100 on the inside and outside of the vehicle body in the left-right direction of the vehicle body can be attached to the arms of the suppression arm 2200 so that a flexible planting row distance adjustment function can be realized. It can slide in the left and right directions of the vehicle body at the base. For example, when the sliding distance of a set of pressure rollers 2100 on the inside of the vehicle body is 15 mm toward the outside of the vehicle body in the left-right direction of the vehicle body, and the slidable distance of a set of pressure rollers 2100 on the outside of the vehicle body is 45 mm. In this case, when the two sets of pressure rollers 2100 are slid toward the outermost side of the vehicle body, the distance between them in the left-right direction of the vehicle body is 30 mm.

The plate 2211 of the suppressing arm member 2210 is supported by contacting a flat button 2212 serving as a stopper from below so that the rotation angle of the set of suppressing rollers 2100 inside the vehicle body is regulated. The flat button 2212 is a bolt head of a push bolt screwed into the main frame 101 etc., and since the amount of extrusion of the flat button 2212 can be adjusted, the rotation angle of the suppressing roller 2100 to be regulated can be adjusted. The height adjustment function of the flexible pressure roller 2100 is realized.

Since the plate 2211 is an L-shaped plate, even if a set of pressure rollers 2100 inside the vehicle body slide in the left-right direction of the vehicle body, contact with the flat button 2212 is guaranteed, and the height of the pressure rollers 2100 is maintained. The adjustment function is always effective regardless of the distance adjustment between planted rows.

Since the bar 2220 attached to the suppression arm 2200 of the set of suppression rollers 2100 on the outside of the vehicle body contacts the suppression arm 2200 of the set of suppression rollers 2100 on the inside of the vehicle body, the rotation of the set of suppression rollers 2100 on the outside of the vehicle body The angle is also regulated.

As shown in FIG. 13, the suppressing arm 2200 may be a strong arm that branches into two in the left-right direction of the vehicle body and holds the suppressing roller 2100.

Here, FIG. 13 is a schematic partial plan view of the vicinity of the suppression device 2000 of the transplanter 100 according to a third modification of the embodiment of the present invention.

This bifurcated arm holding structure utilizes a pair of parallel pipes with a pair of V-shaped plates formed to reduce the width of the arm base in the left-right direction of the vehicle. In this case, the configuration makes it easy to ensure a stroke for adjusting the distance between planting rows.

The transplanter of the present invention can simplify the configuration of the driving force control mechanism for intermittent lifting and lowering of the planting tool, and is useful for use in transplanters such as vegetable seedling transplanters. .

100 Transplant machine 101 Main frame 102 Handle frame 103 Getting on/off step 104 Stand 110 Engine 111 Transmission 112 Traveling device transmission chain case 113 Driving force control mechanism transmission shaft 120 Traveling device 121 Driven front wheel 122 Driving rear wheel 130 Driving force control mechanism 131 Driving force Control case 132 Planting tool lifting control camshaft 133 Planting tool lifting control cam 134 Planting tool lifting mechanism transmission chain shaft 135 Planting tool lifting mechanism transmission chain 136 Transplant supply mechanism drive shaft 140 Planting tool lifting mechanism 140a Connection plate 140b Rod cam 141 Planting Tool lifting case 142 Planting tool lifting clutch 143 Planting tool lifting control arm 144 Planting auxiliary work mechanism drive shaft 150 Planting device 151 Planting tool 160 Transplant supply mechanism 170 Planting auxiliary work mechanism 1000 Irrigation device 1100 Piston 1110 Plate member 1111 Recess 1120 Bush member 1130 Collar member 1140 Grease nipple member 1150 Bolt member 1160 Nut member 1200 Crank 1210 Plate member 1211 Long hole 1300 Joint 2000 Suppression device 2100 Suppression roller 2200 Suppression arm 2210 Suppression arm member 2211 Plate 2212 Flat button 222 0 bar 2300 suppression rod 2400 scraper

Claims (4)

a pair of left and right driven front wheels (121) and a driving rear wheel (122);
A planting tool (151) that performs planting work of a transplant while being raised and lowered by a planting tool lifting mechanism (140);
a seedling supply table-type transplant supply mechanism (160) that supplies the transplant to the planting tool (151);
A handle frame (102);
The handle frame (102) is biased toward one of the left side and the right side of the vehicle body,
A transplanter characterized in that a plurality of planting tool lifting mechanisms (140) are arranged side by side in the left and right direction of the vehicle body. Each of the plurality of planting tool elevating mechanisms (140) has a planting tool elevating case (141) that accommodates a planting tool elevating clutch (142),
It has a driving force control case (131) that is a driving force control mechanism (130) that transmits driving force to each of the plurality of planting tool lifting mechanisms (140),
The transplanting machine according to claim 1, wherein the planting tool lifting case (141) and the driving force control case (131) are separate bodies. The driving force control mechanism (130) has a camshaft (132) for controlling the elevation of the planting tool (132), the shaft longitudinal direction of which is in the left-right direction of the vehicle body;
3. The transplanting machine according to claim 2, wherein the planting tool lifting/lowering check cam (133) of each of the plurality of planting tools (151) is attached to a planting tool lifting/lowering check camshaft (132). The implanter according to claim 2 or 3, characterized in that the implant supply mechanism drive shaft (136) that drives the implant supply mechanism (160) is taken out from the drive force control case (131).