CN215601880U - Transplanting machine - Google Patents

Abstract

Provided is a transplanting machine which can reduce the force required for pushing down a control handle in order to lift the front side of a machine body during a rotation operation. An insertion device (20a, 20b) for inserting seedlings into a field is provided on a running vehicle body (40), a control member (404) for performing a rotation operation or the like is provided at the rear part of the body of the running vehicle body (40), an auxiliary pedal (412) is provided below the control member, the auxiliary pedal is stepped during the rotation operation to assist the lifting of the front part of the body of the running vehicle body (40), a pedal frame (411) is provided at the control member (404) in an inclined posture toward the rear side of the body, one or more auxiliary pedals (412) are provided on the pedal frame, a transmission case (26) for operating the insertion device is provided, a connecting plate (400) is provided at the transmission case, a pedal reinforcing member (413) is provided at the pedal frame (411), and the pedal reinforcing member and the connecting plate are connected by a reinforcing rod (414).

Description

Transplanting machine

Technical Field

The present invention relates to a transplanter for transplanting vegetable seedlings such as onions or lettuce to a field.

Background

The following transplantable machines are known: a seedling supply device and a seedling planting hopper are provided at the rear part of the machine body, and the machine body is provided with a control handle for a worker to perform an operation in the traveling direction of the machine body and a lifting operation of the front side of the machine body at the time of rotation operation at the ridge end and the movement outside the field, and the machine body is provided with an engine, a transmission case, and an operation seat for riding in the planting operation at the front side (patent document 1).

Patent document 1: japanese patent laid-open No. 2020 and 68742

In the transplanter disclosed in patent document 1, although a heavy object such as a seedling feeder and a seedling planting hopper is also disposed on the rear side of the body, a heavy object such as an engine and a transmission is also disposed on the front side of the body, and a corresponding force is required when the control handle is pushed down to lift the front side of the traveling vehicle body.

In this case, the operator needs to perform the work mainly using the force of the upper body, particularly the arm and the back muscle, and a large force is required unevenly. On the other hand, the force of the lower body, which is relatively easy to apply, is hardly utilized to lift the front side of the traveling vehicle body. Therefore, there are problems as follows: in the swing travel, the operator requires a large amount of labor, and the swing travel cannot be performed efficiently.

SUMMERY OF THE UTILITY MODEL

The present invention has been made in view of the conventional problems, and an object thereof is to provide a transplantation machine capable of reducing a force required for pushing down a manipulation handle to lift the front side of a machine body in a turning operation.

In order to solve the above problems, the following technical means are described.

The utility model discloses a 1 st aspect is a transplanter, it is provided with at the automobile body 40 of traveling and plants the seedling to the planting hopper 20a, 20b in the field, is provided with the operating handle 404 that carries out manipulation such as gyration at this automobile body 40's organism rear portion, its characterized in that the below of operating handle 404 is provided with supplementary footboard 412, comes to assist the anterior lift-up of the organism of automobile body 40 of traveling through trampling this supplementary footboard 412 when the gyration.

The transplanting machine according to claim 1 in aspect 2 of the present invention is characterized in that the operating handle 404 is provided with a pedal frame 411 in an inclined posture toward the rear side of the body, and one or more auxiliary pedals 412 are provided on the pedal frame 411.

The transplanter according to claim 3 of the present invention according to claim 2 is characterized in that the transplanter is provided with a transmission case 26 for operating the transplanting hoppers 20a and 20b, the transmission case 26 is provided with a connecting plate 400, the pedal frame 411 is provided with a pedal reinforcing frame 413, and the pedal reinforcing frame 413 and the connecting plate 400 are connected by a reinforcing rod 414.

Effect of the utility model

According to the utility model of claim 1, since the assist pedal 412 can be stepped to apply a force for lifting the body front side of the traveling vehicle body 40, the force for pushing down the joystick 404 can be reduced, and the labor required for the swing work can be reduced.

According to the utility model 2, in addition to the effect of the utility model 1, by making the pedal frame 411 incline toward the rear side of the body, the force applied when the assist pedal 412 is trampled can be made close to the rear side of the body, and therefore, the force of the arm required to lift the front side of the traveling vehicle body 40 is reduced, and the swing operation can be performed efficiently.

Further, when a plurality of assist pedals 412 are formed to be attachable, the assist pedal 412 that is easy to step can be selected according to conditions such as the state of the field to be turned and the physique of the operator, and therefore, the labor of the operator can be reduced and the turning operation can be efficiently performed.

Further, when one assist pedal 412 is assembled, the number of parts is reduced, the structure is simplified, and the labor for maintenance and the like is reduced.

According to the utility model of claim 3, in addition to the effect of the utility model of claim 2, by connecting the pedal reinforcement frame 413 and the connecting plate 400 of the transmission case 26 by the reinforcing rod 414, the strength in the vicinity of the assist pedal 412, which is likely to be loaded by stepping on, can be increased, and occurrence of damage can be suppressed.

Drawings

Fig. 1 is a left side view of the transplanter.

Fig. 2 is a right side view of the transplanter.

Fig. 3 is a rear view of the transplanter.

Fig. 4 is a front view of the transplanter.

Fig. 5 is a top view of the transplanter.

Fig. 6 is a plan view showing a main part of the periphery of the bumper on the front side of the body.

Fig. 7 is a main portion side view showing the periphery of the bumper on the front side of the body.

Fig. 8 is a main part perspective view showing the periphery of the bumper on the front side of the body.

Fig. 9 is a main part perspective view showing the manipulation part, the transplanting device, the seedling supply device, etc. at the rear of the machine body.

Fig. 10 is a main portion perspective view of the transplanter illustrating a ridge end sensor, a boarding pedal, and the like.

Fig. 11 is a left side view of the transplanter with the rear accessory pedal assembled.

Fig. 12 is a rear view of the transplanter with the rear accessory pedal assembled.

Fig. 13 is a main portion perspective view showing a rear assist pedal.

Fig. 14 is a main portion perspective view showing a rear assist pedal of another configuration example.

Fig. 15 is a main part drawing showing an angle adjusting mechanism of the rear assist pedal.

Description of the reference symbols

20a inserting and planting hopper

20b inserting and planting hopper

26 gear box

40-running vehicle body

404 operating handle

411 pedal frame

412 auxiliary pedal

413 pedal reinforcing frame

414 stiffener

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

In the following description, the side on which the handle 404 is disposed is referred to as the rear side, and the opposite side, i.e., the side on which the engine 41 is disposed, is referred to as the front side. The right-hand side is set to the right and the left-hand side is set to the left toward the front side of the machine body.

As shown in fig. 1 to 5, the transplanter 10 of the present embodiment includes a traveling vehicle body 40 capable of traveling forward, a control handle 404 for walking control provided at the rear part of the traveling vehicle body 40, a planting device 42 for planting seedlings in a field, and a seedling supply device 43 for supplying seedlings to the planting device 42.

The traveling vehicle body 40 is provided with a transmission case 39 at a front portion of the vehicle body, and an engine 41 as a driving device is provided on a front side of the transmission case 39. An axle cover for covering an axle capable of adjusting the track width by changing the left and right positions of a running wheel 44 as a rear wheel is connected to the lower portion of the rear side of the body on both the left and right sides of the transmission case 39, and a running gear box 38 is vertically rotatably attached to each of the outer ends of the body of the axle cover, and the running gear box 38 transmits the driving force to the running wheel 44 provided on the rear side of the body.

The left and right travel wheels 44 are disposed between the left and right sides of the travel transmission case 38 and the vehicle body frame, respectively, thereby suppressing the left and right width of the machine body. However, if the right and left running wheels 44 are configured to be able to be mounted on the outside of the machine body of the running gear box 38 so as to correspond to conditions such as a ridge width for performing a seedling transplanting operation, the number of operation conditions that can be met can be increased.

More specifically, the left and right axle covers are rotatably attached to the inner axles (not shown) as fulcrums, the travel transmission case 38 is attached to each of these axle covers, and the travel transmission case 38 is vertically rotated by the rotation of the axle covers by the expansion and contraction of a lifting hydraulic cylinder or a swing cylinder, which will be described later.

As shown in fig. 1 to 5 and 9, the transmission case 26 is branched to supply the driving force to the transplanting device 42 and the seedling supply device 43 by transmitting the power from the transmission case 39, a base plate 400 is provided on the transmission case 26, the base plate 400 covers at least left and right side surfaces and a back surface of the transmission case 26, and a frame stay 401 is detachably provided at a rear portion of the base plate 400 by a fixing member such as a bolt. The frame stay 401 is provided with a handle frame 402 protruding upward toward the rear side of the machine body in a shape of drawing an arc, and a manipulation unit 403 and a manipulation handle 404 are provided at the rear portion of the handle frame 402, and the manipulation unit 403 operates vertical adjustment of the vehicle height, connection/disconnection of transmission of traveling and transplanting work, and the manipulation handle 404 is held by a worker when the operator operates the machine body, such as when the operator does not move the seedling transplanting. The steering handle 404 has a shape that is curved toward the left and right of the machine body about the handle frame 402 and toward the rear of the machine body, and side clutch operating levers 405 that connect and disconnect the transmission to the traveling wheels 44 are provided on the left and right rear sides, respectively. Further, a 1 st throttle lever 406 that increases or decreases the output of the engine 41 is provided on either the left or right side of the joystick 404.

A steering panel 47a is provided between the right and left sides of the steering handle 404, and the steering panel 47a includes: a vehicle height adjusting lever 123 for adjusting the height of the traveling vehicle body 40 by extending and contracting the lifting hydraulic cylinder; a main clutch lever 125 that connects/disconnects transmission of driving force to the left and right travel transmission cases 38 and 26; a 1 st engine switch 407 that switches whether or not the engine 41 can be started and performs a stop operation; and a main shift lever 150 that switches the travel transmission of the traveling vehicle body 40 to any one of a traveling speed, an insertion operation speed, a traveling neutral position, and a reverse position.

When the start of the engine 41 is permitted, the operator pushes the 1 st engine switch 407 and rotates it to operate it to the on position. Thus, when the starting operation of the engine 41 is performed, the engine 41 is started.

When the operator pushes the 1 st engine switch 407 slightly to stop the engine 41, the operator switches the switch to the off position by the force of a built-in torsion spring (not shown), thereby bringing the engine 41 to a stop state.

In the off operation, the 1 st engine switch 407 is pushed slightly, and thus, the running and the transplanting can be stopped immediately. Thus, when reaching the end of the ridge, the running and the transplanting are immediately stopped, thereby preventing the transplanting action of the seedlings from being carried out at the positions which are not on the ridge, and reducing the additionally consumed seedlings. In addition, when the machine body is moved to the ridge for the next transplanting operation, no additional movement is generated, thereby reducing fuel consumption and operation time.

A seedling supply device 43, which will be described later, is provided on the upper portion of the transmission case 26 in front of the machine body of the manipulating handle 404, and the seedling supply device 43 transfers seedlings to be thrown by a worker to the left and right transplanting hoppers 20a, 20 b. Further, a reinforcing frame 152 in the front-rear direction is provided across the rear portion of the seedling feeding device 43 and the reinforcing coupling stay 151, the reinforcing coupling stay 151 is provided on the upper rear side of the handle frame 402 and the front side of the manipulation panel 47a, and the reinforcing frame 152 improves the strength of the vicinity of the manipulation handle 404 and the seedling feeding device 43 and reduces vibration.

After the seedling transplanting operation at the ridge end of the traveling vehicle body 40 is completed, the operator moves to the rear side in the traveling direction of the machine body, holds the inner rotating operating handle 404 and the side clutch operating lever 405, cuts off the transmission of the traveling wheel 44 toward the inner rotating side, performs the rotating operation on the traveling vehicle body 40, and moves to the start end side of the next transplanting operation row. At this time, the operator holds the handle 404 and applies a weight downward to separate the body front side of the traveling vehicle body 40 upward from the field surface, thereby facilitating the swing traveling.

Weights such as a preliminary seedling rack 50 for loading a seedling box, a work seat 46, an engine 41, and a transmission case 39 are disposed on the front side of the machine body with respect to the axle of the running wheels 44, and when the front side of the running vehicle body 40 is floated upward, a force against the weights of the above-mentioned components and other components needs to be applied.

In this case, if the weight can be applied with the feet, the force required for the work can be easily applied, but the worker needs to mainly perform the work with the upper body force such as arm force or back muscle force in a portion where the feet are not placed in the rear portion of the traveling vehicle body 40.

In order to apply weight by foot during the swing operation, as shown in fig. 11 to 13, pedal frames 411 are respectively disposed downward and left and right from a connecting frame 410 which connects the front end portions of the left and right joysticks 404 and extends in the left-right direction of the machine body, and an assist pedal 412 for a worker to place his foot during the swing or movement is provided between the left and right of the left and right pedal frames 411, 411.

The left and right pedal frames 411, 411 are arranged in a posture substantially perpendicular to the ground or a posture slightly inclined toward the rear side of the machine body when the running vehicle body 40 is located on the ground having an inclination of 0 degrees, and the left and right pedal frames 411, 411 do not protrude rearward of the machine body.

The assist pedal 412 may be connected to the lower ends of the left and right pedal frames 411, or may be connected to the vicinity of the lower ends. Alternatively, the connection may be made such that the operator can reach the upper and lower positions of the assist pedal 412 without lifting his or her foot, without touching the operation panel 47a or the like, or without being forced to lift his or her foot, above the machine body in the vicinity of the lower end portion.

In other words, the accessory pedal 412 may be configured such that the left and right pedal frames 411, 411 are connected at a plurality of locations at predetermined intervals in the vertical direction, and the operator can easily select the accessory pedal 412 … that can be easily reached by the foot according to his or her physique, and the strength is improved and the accessory pedal is not easily broken.

Since the assist pedal 412 is stepped on by the operator, not only the assist pedal 412 but also the left and right pedal frames 411, 411 need to have a structure that can withstand a load. In order to ensure the strength, as shown in fig. 11 to 13, a pedal reinforcing frame 413 for connecting the left and right pedal frames 411 and 411 is provided at a position different from the position where the assist pedal 412 is attached, and a reinforcing rod 414 is provided between the pedal reinforcing frame 413 and the rear portion of the base plate 400, that is, the front and rear portions of the frame stay 401.

In addition, when the mounting space for mounting the reinforcing bar 414 to the frame stay 401 is insufficient, an extension stay 401a is provided, and the extension stay 401a forms a mounting position on the front end side of the body of the reinforcing bar 414 while avoiding the recess of the handle frame 402.

When the assist pedal 412 can be changed not only in the vertical position but also in the longitudinal position according to conditions such as the position where the swing operation is performed and the physique of the operator, the operator himself or herself can step in a posture that allows the operator to step more easily, and the front side of the traveling vehicle body 40 can be floated with a lighter force.

As shown in fig. 15, the reinforcing rod 414 is divided into front and rear parts, the other one of the front reinforcing rod 414a and the rear reinforcing rod 414b is inserted into the other one, and the left and right pedal frames 411, 411 are attached to the handlebar 404 so as to be rotatable in the front-rear direction, and the front-rear position of the auxiliary pedal 412 can be changed by changing the front-rear length of the reinforcing rod 414 to change the inclination angles of the left and right pedal frames 411, 411.

The front side reinforcing rod 414a and the rear side reinforcing rod 414b may be fixed in length by fastening members such as bolts, but may be changed in length only when the operator performs an expansion/contraction operation by using a hydraulic cylinder or the like.

Accordingly, the operator can float the front side of the traveling vehicle body 40 with a smaller force when starting the turning traveling, and thus the front wheels 45 and the like are prevented from coming into contact with the ground surface to interfere with the turning traveling during the turning traveling, thereby preventing a reduction in work efficiency or damage to the ground surface.

In the structure in which the pedal reinforcing frame 413 is provided between the left and right sides of the left and right pedal frames 411, the pedal reinforcing frame 413 occupies one position of the attachment position of the assist pedal 412, and therefore, options for the vertical height of the assist pedal 412 are reduced. Therefore, the upper portion of the pedal reinforcement frame 413 may be configured to be flat, and the assist pedal 412 may be disposed on the upper portion.

Alternatively, the mounting position of the pedal reinforcing frame 413 is set to the uppermost position, and the auxiliary pedal 412 is disposed only on the lower side of the body with respect to the pedal reinforcing frame 413. In this case, in order to secure a sufficient range in which the assist pedal 412 can be mounted in the vertical direction, as shown in fig. 14, extension pedal frames 416, 416 are attached to both the left and right sides of the assist pedal 412 toward the upper side of the body, and one or more mounting holes (not shown) are formed in the extension pedal frames 416, 416. Further, a plurality of adjustment holes 417 … are formed in the left and right pedal frames 411, 411 below the mounting position of the pedal reinforcement frame 413 on the machine body, and fastening members 418 such as bolts are provided in the adjustment holes 417 … at any vertical position and the mounting holes of the extended pedal frames 416, 416.

Alternatively, a mounting pin may be inserted into the adjustment hole 417 … and the mounting hole, and the mounting pin may be fixed by a cotter pin. In this configuration, the operator can insert and remove the cotter pin by hand, and therefore the vertical position of the assist pedal 412 can be adjusted without holding a tool such as a wrench.

As shown in fig. 14, the plurality of adjustment holes 417 … formed in the vertical direction and the attachment holes may be formed in long holes so as to communicate with each other, and the extension pedal frames 416, 416 may be movable in the vertical direction when the fastening member is loosened, and the vertical movement of the extension pedal frames 416, 416 may be restricted to fix the vertical position of the assist pedal 412 when the fastening member is fastened.

In fig. 13 to 15, the left and right extended pedal frames 416 and 416 contact the left and right pedal frames 411 and 411 from the outside of the body, but may be configured to contact the left and right pedal frames 411 and 411 from the inside of the body.

A shock absorber support frame 108 shaped like コ in a front cross-sectional view is provided on the front side and both the left and right sides of the machine body of the transmission case 39 so as to project toward the front side of the machine body. A damper (damper) 109 protruding toward the front side of the machine body is provided in front of the left and right damper support frames 108.

As shown in fig. 6 to 8, the damper 109 is composed of a damper plate 109a formed by bending the front side and both left and right sides of the body of the plate body downward, a front weight 109b attachable to and detachable from the upper surface of the damper plate 109a, and a damper rod 109c extending in the left-right direction from the damper plate 109 a. The front weight 109b is made of a heavy and hard material and has a shape protruding toward the front side of the machine body from the cushion plate 109 a.

Thus, the front weight 109b, which is a block having a weight and hardness, protrudes most forward of the machine body, and therefore damage can be prevented from reaching the cushion plate 109a when contacting an obstacle.

Recesses (not shown) having openings on the lower side of the body are formed on the body front side and the body lower side of the left and right shock absorber support frames 108, and front beam frames 110 having the longitudinal direction of the body in the left-right direction are inserted into these recesses and fixed.

By providing this front beam frame 110, the right and left bumper support frames 108 and the transmission case 39 are also formed into a rectangular frame on the front side of the machine body, and therefore the strength of the front side of the machine body is improved. In particular, when the shock absorber 109 comes into contact with an obstacle, the left and right shock absorber support frames 108 are inserted into and fixed to the front beam frame 110, and therefore, damage and impact are not easily transmitted to the rear portions of the left and right shock absorber support frames 108.

Further, when the transmission case 39 is assembled to the machine body, the left and right positions can be adjusted while fixing the front and rear positions of the transmission case 39 by inserting the concave portions of the left and right bumper support frames 108 into the front beam frame 110 and then moving the same in the left and right directions, and therefore, the assembly work is prevented from being delayed due to the deviation of the mounting position of the transmission case 39.

The rear portion of the engine 41 is mounted on the front and left and right sides of the transmission case 39, and the front portion of the engine 41 is mounted on an engine mount disposed near the left and right center portions of the front beam frame 110, but the shock absorber support frame 108 on which the engine 41 is disposed and the engine 41 are disposed at a vertical distance from each other. That is, the damper support frame 108 is not a member that receives the engine 41 from below.

According to the above configuration, since the impact when the shock absorber 109 contacts an obstacle can be prevented from being transmitted from the shock absorber support frame 108 to the engine 41, damage to the engine 41 and malfunction due to the impact can be prevented.

Further, the shock absorber support frame 108 is configured not to easily affect the mounting state of the engine 41 even if it is deformed by an impact, and is configured to be capable of performing work and movement by the power of the engine 41 even if the shock absorber 109 is damaged.

Pedal support plates 111 are attached to the left and right sides of the cushion plate 109a, and the pedal support plates 111 have left and right recesses to which cushion rods 109c are attached. The left and right pedal support plates 111 are supported via reinforcing arms 112, and the reinforcing arms 112 are provided on the left and right sides of the body rear side of the front frame 110.

The left and right pedal support plates 111 have a flat upper surface, and a body front portion of a front riding pedal 113 is attached to a body left side which is a body left side on the left and right sides of the traveling vehicle body 40, and an operator steps on the front riding pedal 113 when ascending and descending from the body front side. On the other hand, an inter-plant switching cover 114 is formed on the other side of the right and left of the body, i.e., the right side of the body, and the inter-plant switching cover 114 supports an inter-plant main shift lever 801 and an inter-plant sub shift lever 802 for setting a so-called inter-plant distance between seedlings planted in the planting hoppers 20a and 20b, and an planting shift lever 803 for selecting the 1 st planting speed or the 2 nd planting speed when the main shift lever 150 is operated to the planting speed.

The front boarding step 113 includes a lower step portion 113a located on the front side of the machine body and on the lower side in the vertical direction, an upper step portion 113b located on the rear side of the machine body and on the upper side in the vertical direction with respect to the lower step portion 113a, and an intermediate inclined portion 113c located between the lower step portion 113a and the upper step portion 113b and inclined in a twisted manner in the outer direction of the machine body. A plurality of anti-slip protrusions 113d are formed on the surface of the lower step portion 113a, and the intermediate inclined portion 113c is formed to have an inclination angle at which an operator cannot easily step on the foot psychologically during ascending and descending, and to have a length in the front-rear direction that the operator crosses over when moving between the lower step portion 113a and the upper step portion 113 b.

On the other hand, the inter-plant switching cover 114 is composed of a lower table portion 114a located on the front side of the machine body and on the lower side in the vertical direction, an upper table portion 114b located on the rear side of the machine body and on the upper side in the vertical direction with respect to the lower table portion 114a, and a rod attachment portion 114c located between the upper and lower sides of the lower table portion 114a and the upper table portion 114b, and the rod attachment portion 114c is twisted and inclined in the machine body outer side direction and is formed with a movement groove in which the inter-plant main shift lever 801, the inter-plant sub shift lever 802, and the main shift lever 150 move, respectively.

The front-side riding step 113 and the inter-plant switching cover 114 are formed in a bilaterally symmetrical shape, and a member provided on one of the left and right sides of the machine body may be the inter-plant switching cover 114, and a member provided on the other of the left and right sides of the machine body may be the front-side riding step 113.

Side steps 118 are provided on the rear sides of the body of the upper step portion 113b and the upper base portion 114b, respectively, and the side steps 118 serve as a foot rest for a worker to get on and off the body from the side. The side step 118 is configured by arranging a plate body vertically and horizontally in a frame to form a plurality of space portions, and dropping soil attached to the sole of the operator downward. Further, a center step, which is a foot-engaging portion of an operator who engages the vehicle, is detachably provided between the left and right sides of the left and right side steps 118.

The floor pedal 122 is constructed as described above.

The front side boarding step 113, the inter-trunk switching cover 114, the left and right side steps 118, and the center step are mounted independently, that is, not fastened together by one mounting member (bolt or the like). Thus, when each pedal structure is removed during local maintenance work, it is not necessary to remove other pedal structures, and the efficiency of the maintenance work is improved.

A lower part of the front side boarding pedal 113 is provided with an ascent and descent assist mechanism on which an operator steps his foot when ascending and descending with respect to the front side boarding pedal 113. The riding and landing assisting mechanism is composed of the following parts: an outer support arm 171 which is positioned outside the body, has an L-shape in side view, and has a 1 st protruding portion 171a protruding forward of the body below the bent portion; an inner support arm 172 located inside the body, having an L-shape in front view, and having a 2 nd projecting portion 172a projecting outward of the body below the bent portion; and a boarding/alighting assist pedal 173 provided over the 1 st projection 171a and the 2 nd projection 172 a.

The outer support arm 171 is fastened together with the pedal support plate 111 by the common fastening bolt 174 … and is mounted on the running vehicle body 40. The inner support arm 172 is fastened together with the cushion plate 109a by a common fastening bolt 174 … and is attached to the running vehicle body 40.

Thus, since the plurality of members are fastened by the common fastening bolt 174 …, the strength of the vicinity of the front side of the vehicle body 40 is increased, and the reduction in durability due to the load when the operator rides in and out is reduced.

Further, by providing the riding-down assist pedal 173, even if the height of the traveling vehicle body 40 is increased in accordance with the height of the ridge or the like, the operator can step on the riding-down assist pedal 173, step on the lower step portion 113a of the front riding pedal 113 to take the vehicle, and get off the vehicle in the reverse operation, so that the operator does not need to raise his foot during riding down or to jump down slightly, and the burden on the body of the operator is reduced.

Further, since the riding/landing assist pedal 173 is provided over the 1 st protruding portion 171a and the 2 nd protruding portion 172a, the outer support arms 171 and the inner support arms 172 are not positioned within the lateral width of the riding/landing assist pedal 173, and therefore, the feet of the operator are prevented from coming into contact with the outer support arms 171 and the inner support arms 172.

On the other hand, when the vehicle height of the traveling vehicle body 40 is lowered or in the transplanting work, the riding and lowering assist mechanism is not required, but the riding and lowering assist mechanism may contact the ridge surface or the normal surface of the ridge depending on the vehicle height to collapse the ridge, thereby lowering the transplanting accuracy of the seedling.

In order to prevent this, the base portions of the outer support arm 171 and the inner support arm 172 may be fitted with double nuts (not shown), the outer support arm 171 and the inner support arm 172 may be fitted so as to be rotatable about the common fastening bolt 174 … as a rotation fulcrum, and the boarding/alighting assistance mechanism may be configured to be rotatable up and down.

According to the structure, the lifting auxiliary mechanism can rotate towards the upper part far away from the ridge surface when not needed, so that the lifting auxiliary mechanism is prevented from collapsing ridges, and the transplanting precision of seedlings is maintained.

As shown in fig. 1 to 8, a ridge end sensor stay 182a that supports a ridge end sensor 182 is provided at a lower portion of the inter-plant switching cover 114, and the ridge end sensor 182 rotates downward by its own weight to contact the ridge surface, and further rotates downward when the traveling vehicle body 40 reaches the end of the ridge without contacting, and operates a notification device 181 that notifies the operator of the arrival at the end of the field. The notification device 181 is a buzzer or a lamp mounted on each part of the traveling vehicle body 40, or a communication device that notifies an information terminal provided in an operator.

The ridge end sensor 182 is configured to be provided with a sensor arm 183 so as to be rotatable, a ridge surface contact roller 184 is rotatably attached to a lower portion of the sensor arm 183, a ground contact biasing spring 185 for biasing the sensor arm 183 downward is provided, and a ridge end detection switch 186 which is turned on (or off) when the angle of the ridge end detection switch is equal to or greater than a predetermined angle is provided at a base portion of the sensor arm 183. The ground contact biasing spring 185 is configured such that the upper end portion side is attached to a detection adjustment plate 187 that can be adjusted in angle along the elongated hole, and the angle of operation can be changed in accordance with the ridge height.

The ridge end sensor 182 is brought into contact with the ridge surface by adjusting the height of the traveling vehicle body 40 at the start of the seedling transplanting operation. By bringing the freely rotatable ridge surface contact roller 184 into contact with the ground, the ridge surface is less likely to collapse, and fine irregularities can be flattened, thereby improving the accuracy of transplanting seedlings.

When the traveling vehicle body 40 further moves forward and reaches the end of the ridge and the ridge surface contact roller 184 does not contact the ridge surface, the sensor arm 183 rotates downward by the urging force of the contact urging spring 185 and the weight of the sensor arm 183 and the ridge surface contact roller 184, and the ridge end detection switch 186 is not pressed. When the ridge end detection switch 186 is not pressed, the notification device 181 is energized, and thereby the notification device 181 operates to notify the operator that the vicinity of the body front end of the traveling vehicle body 40 has reached the ridge end.

Further, since there are several remaining planting spaces in the ridge at the time when the ridge end sensor 182 detects the ridge end, the operator puts the seedlings, the number of which is the number of seedlings to be planted in the remaining planting spaces, into the seedling supply device 43 and prepares to stop the operation without immediately stopping the machine body.

Therefore, the operator can know the approaching ridge end without turning back, so that the machine body can be stopped at the timing of finishing the transplanting of the seedlings on the ridge, and the fuel consumption caused by extra driving and the moving distance towards the next operation row are prevented from being increased.

Further, since the number of seedlings to be loaded into the seedling supply device 43 can be adjusted when the ridge ends are close, even if the stop operation of the transplanting operation traveling is delayed and the transplanting operation is performed by the transplanting hoppers 20a and 20b, the seedlings are prevented from being released to a portion other than the ridge.

As shown in fig. 4, 6, and 7, the sensor arm 183 may be a pair of left and right sensor arms 183a, and the ridge surface contact roller 184 may be rotatably provided with the left and right ridge surface contact rollers 184a, and the left and right ridge edge detection switches 186, respectively.

Thus, when one of the left and right sensor arms 183, 183 is rotated downward and one of the corresponding ridge end detection switches 186, 186 is not pressed, the notification device 181 is operated, and thus even if the ridge end is disturbed in shape due to wind and rain collapse, the ridge end is easily detected, and the operator can perform the operation of stopping the insertion operation traveling well at regular time.

Further, front wheels 45 rotatably supported via a lateral frame 16 are provided on both left and right sides of the body front side of the running vehicle body 40 and on the body front side of the running wheels 44, and the lateral frame 16 is provided on a lower portion side of the front beam frame 110 and projects in the body left-right direction.

The distal ends of the wheel drive shafts extending from the transmission case 39 to the left and right outer sides enter the rotational axis position of the front portion of the traveling transmission case 38, and the power for traveling is transmitted to the transmission mechanism in the traveling transmission case 38 via the traveling portion system transmission portion in the transmission case 39. The power for traveling is transmitted to the transmission axle of traveling transmission case 38 via a transmission mechanism in traveling transmission case 38, and traveling wheels 44 are rotationally driven.

A vertically rotating drive unit that vertically rotates the travel wheel 44 about a pivot point on the front side of the travel transmission case 38 is connected to the travel transmission case 38. Specifically, an arm 13 extending upward is integrally attached to the traveling transmission case 38 at a portion attached to the transmission case 39, and the arm 13 is connected to both left and right sides of a connecting body attached to a piston rod end of a hydraulic cylinder for lifting fixed to the transmission case 39. One of the left and right sides (right side) is connected by a connecting rod, and the other side (left side) is connected by a left and right control hydraulic cylinder which can perform telescopic operation corresponding to the inclination of the machine body.

When the lifting cylinder is operated to project the piston rod rearward of the machine body, the left and right arms 13 are rotated rearward, and the travel transmission case 38 is rotated downward in response to this rotation, and the machine body is raised. Conversely, when the piston rod of the hydraulic cylinder for elevation moves forward in the machine body and retracts into the cylinder, the left and right arms 13 rotate forward, and the travel transmission case 38 rotates upward in association with this rotation, and the machine body descends.

The lifting hydraulic cylinder is operated by a ridge surface sensor 14, and the ridge surface sensor 14 is in contact with the ridge surface and is operated along with the variation of the vertical interval between the machine body and the ridge surface. The operation of the ridge surface sensor 14 is an operation of detecting the height of the upper surface of the ridge with reference to the position of the machine body, and the machine body is set to a set height corresponding to the height of the upper surface of the ridge based on the detection operation of the ridge surface sensor 14, and the elevation hydraulic cylinder is operated by this configuration.

When the left and right horizontal control hydraulic cylinders perform the telescopic operation, the left arm 13 connected to the left and right horizontal control hydraulic cylinders is rotated to move only the left traveling wheel 44 up and down, thereby tilting the machine body left and right. The left-right horizontal control hydraulic cylinder is configured to operate based on a detection result of a sensor that detects a left-right inclination of the body with reference to the left-right horizontal, and to make the body horizontal.

As shown in fig. 1, 2, and 5, the lateral frame 16 is attached to the front beam frame 110 so as to be swingable around an axial center in the front-rear direction, and vertical frames 17, which are vertically long, are attached to both left and right sides of the lateral frame 16. The front wheels 45 are rotatably mounted on a front wheel axle 18, and the front wheel axle 18 is fixed to the side of the lower end of the vertical frame 17. Therefore, the right and left front wheels 45 are swingably rotatable about the axis in the front-rear direction at the right and left center of the machine body. The vertical frame 17 is configured to be vertically adjustable with reference to both left and right side portions of the horizontal frame 16, and to be capable of adjusting the height of the front wheel 45.

The operating handle 404 is provided at the rear of the body, on the rear side of the body with respect to the transmission axle of the running wheels 44. Specifically, the front end portion is fixed to the transmission case 39.

The body frame extends rearward from the left and right center of the body, and extends obliquely rearward and upward from the front and rear intermediate portions.

The handle bar 404 extends rearward from the rear end of the body frame in the right and left directions, and each rear end serves as a grip portion of the handle bar 404.

In fig. 2, the grip portion is configured to be divided into left and right portions, but the left and right rear end portions of the joystick 404 may be coupled to each other in the left and right directions, and the coupled portion may be used as the grip portion.

The insertion device 42 has: a plurality of mouth-shaped inserters, the tail ends of which are downward; a vertical movement mechanism 21 for vertically moving the implant between a position where the lower end of the implant is above the field surface and a position where the lower end is below the field surface; and an opening/closing mechanism for opening/closing the transplanting device between a closed state in which the lower end portion of the mouth-shaped transplanting device is closed and the transplanting device can receive the seedlings from above and store the seedlings inside and an open state in which the lower end portion of the transplanting device is opened left and right and the seedlings stored inside can be discharged downward.

As shown in fig. 1 to 5, the planting device 42 of the present embodiment is configured to plant in two rows in which the 1 st planting hopper 20a and the 2 nd planting hopper 20b are arranged side by side on the left and right. These 1 st insertion hopper 20a and 2 nd insertion hopper 20b are respectively attached to vertical movement mechanisms 21, and the vertical movement mechanisms 21 are provided on both right and left sides of a transmission case 26 to which power is transmitted from a transmission case 39.

Each seedling container 22 has a cylindrical body having an upper opening and a lower opening, and a bottom cover for opening and closing the lower opening of the cylindrical body, and are connected to each other in a ring shape.

The moving mechanism rotates the connected seedling containers 22 to the left along an oval annular track that is long in the left-right direction when the machine body is viewed in plan, in a state where the connected seedling containers 22 pass above and near the left and right transplanting hoppers 20a, 20 b.

The seedling dropping mechanism opens the bottom cover of the seedling receptacle 22 at a position above the transplanting hoppers 20a, 20b corresponding to the seedling receptacle 22.

In the present embodiment, a cylindrical outer peripheral portion is formed on the outer periphery of the seedling container 22, an engaging portion (circular hole) connected from the outside in a rotatable manner is provided on the cylindrical outer peripheral portion, and a plurality of connected bodies connecting 2 seedling containers 22 are formed. The engaging portion of the coupling body is rotatably connected to the cylindrical outer peripheral portion of the seedling receiving body 22, and the adjacent seedling receiving bodies 22 are rotatably coupled with each other with the cylindrical outer peripheral portion serving as a rotation axis, thereby coupling the plurality of seedling receiving bodies 22 to each other. That is, the seedling container 22 and the coupling body are configured to be coupled to each other like a circulating chain.

Accordingly, in the seedling storage body 22, since the interval between the adjacent seedling storage bodies 22 is not changed in both the linear portion that moves linearly and the arc-shaped portion that moves in an arc shape, a positional deviation of the seedling storage body 22 with respect to the left and right transplanting hoppers 20a, 20b is less likely to occur at the portions where seedlings are supplied from the seedling storage body 22 to the left and right transplanting hoppers 20a, 20b, and appropriate seedling transplanting can be performed by appropriately supplying seedlings.

The moving mechanism of the seedling supply device 43 is configured to wind the seedling storage bodies 22 connected to each other like an endless chain around the arc-shaped cut-out portions on the outer peripheries of the left and right sprockets, and to rotate the respective seedling storage bodies 22 by driving the left and right sprockets to rotate by power taken out from the transmission case 26.

The circulation movement path around which the seedling container 22 circulates is a long circle having a linear portion extending in the left-right direction in plan view and an arc-shaped portion curved in an arc shape from the linear portion to the front side or the rear side by a sprocket, and is disposed inside the body with respect to the left and right running wheels 44.

The operator sits on the work seat 46 or stands on the floor step 122 to perform the seedling supply work to the seedling supply device 43, but when there is no seedling for replenishment, it is necessary to stop the running of the running vehicle body 40 or stop the driving of the transplanting hoppers 20a, 20 b. Further, when the traveling speed or the ascending/descending progress of the planting buckets 20a and 20b is faster than the progress of the operator, it is necessary to change the speed to a speed at which the operation is easy.

As shown in fig. 4 and 5, in order to perform the above-described operation while sitting on the work seat 46 or without going down from the floor step 122, a 2 nd engine switch 408 is provided on the front and left and right end portions of the body of the seedling supply device 43, that is, on the right hand side of the operator sitting on the work seat 46, the 2 nd engine switch 408 is switched to enable or disable the start of the engine 41 and is provided with a 2 nd throttle lever 409 so as to be rotatable in the body left-right direction at a position inside the body (the other side of the left and right sides of the body) than the 2 nd engine switch 408, and the 2 nd throttle lever 409 is provided to increase or decrease the output of the engine 41.

The method of operating the 2 nd engine switch 408 is the same as that of the 1 st engine switch 407, but if both of the 1 st engine switch 407 and the 2 nd engine switch 408 are not operated to the on position, the engine 41 is not started.

Accordingly, when the operator grips the handle 404 at the rear side of the machine body during movement or the like, the stop operation can be performed by the 1 st engine switch 407, and when the operator rides on the traveling vehicle body 40 during seedling transplanting work or the like, the engine 41 can be stopped by turning off the 2 nd engine switch 408, so that the operator does not need to get off the 1 st engine switch 407 from the traveling vehicle body 40 during riding, and the operation causing a problem in transplanting or the machine body can be interrupted.

Further, since the 2 nd throttle lever 409 can be operated from the traveling vehicle body 40, it is not necessary to move the traveling vehicle body 40 up and down when increasing or decreasing the output of the engine 41, and the work efficiency and the work accuracy are improved.

The left and right insertion hoppers 20a, 20b are disposed on the rear side of the transmission axle.

The seedling supply device 43 is configured to supply seedlings by moving the seedling storage body 22 around one turn corresponding to the left and right transplanting hoppers 20a, 20 b.

The transplanting hoppers 20a, 20b drop-supply seedlings from the seedling storage body 22 at the 1 st and 2 nd drop-supply positions, respectively.

Seedling containers 22 for storing seedlings to be dropped and supplied are provided corresponding to the left and right transplanting hoppers 20a, 20b, respectively, and the bottom cover is opened only when the seedling containers 22 come above the corresponding left and right transplanting hoppers 20a, 20b, and is not opened above the non-corresponding left and right transplanting hoppers 20a, 20 b.

That is, only when the seedling receptacle 22 corresponding to the transplanting hopper 20a comes to the 1 st drop-and-supply position and only when the seedling receptacle 22 corresponding to the transplanting hopper 20b comes to the 2 nd drop-and-supply position, the bottom cover of each is opened and seedlings are supplied to the corresponding transplanting hoppers 20a, 20 b.

The 1 st and 2 nd drop-down supply positions are configured to be movable to corresponding positions when adjusting the rows of the left and right implant hoppers 20a, 20 b.

The operation cycle of the moving mechanism is set in synchronization with the operation cycle of the vertical moving mechanism 21, and the seedling receiving bodies 22 corresponding to the left and right transplanting hoppers 20a, 20b are combined to form one seedling receiving body unit, and a plurality of the seedling receiving body units are connected, so that the seedling receiving bodies 22 can supply seedlings corresponding to the left and right transplanting hoppers 20a, 20b without seedling leakage supply while passing through the left and right falling supply positions in series, and the seedlings can be supplied corresponding to the left and right transplanting hoppers 20a, 20b without surplus, so that the seedling receiving bodies 22 which are not supplied with seedlings are not generated after passing through the left and right falling supply positions.

The transplanter 10 of the present embodiment is provided with soil covering leveling wheels 37 at positions near the rear left and right sides of the seedling planting positions of the left and right planting hoppers 20a, 20b, respectively, and the soil covering leveling wheels 37 are used for soil covering leveling corresponding to the seedlings planted in the left and right planting hoppers 20a, 20 b. The left and right soil levelling wheels 37 are composed of: leveling arms 370 and 370 each formed by bending a bar into a J-shape in a plan view, and each independently rotatable up and down; and leveling rotating bodies 371, 371 provided on the rear sides of the left and right leveling arms 370, 370 so as to be rotatable in a pair of left and right directions, respectively.

The one end portion of the leveling arm 370 on the inner side of the body is vertically rotatably attached to the rear portion side of the traveling vehicle body 40, and the leveling arm 370 bends the rear portion of the straight portion protruding rearward upward, then bends outward and downward, and further bends forward at the same vertical position as the straight portion on the inner side of the body. Further, the flat rotating body 371 on the outer side of the machine body out of the left and right flat rotating bodies 371, 371 is provided on the straight line portion on the outer side of the machine body which is bent toward the front side of the machine body, and the flat rotating body 371 on the inner side of the machine body is fitted on the straight line portion on the inner side of the machine body.

According to the above configuration, the retraction 372 is formed at the rear of the leveling arm 370 and protrudes upward from the machine body, and the left and right leveling rotating bodies 371, 371 are arranged with a left and right gap therebetween. Thus, the seedlings planted in the planting hoppers 20a and 20b pass through the left and right spacers of the left and right leveling rotating bodies 371 and 371, and the soil around the seedlings is leveled and passes below the retreat portion 372, so that the soil-covered leveling wheels 37 and 37 are prevented from being pressed down and the planting posture is prevented from being disturbed.

The left and right leveling arms 370 and 370 are respectively mounted so as to be able to adjust the left and right positions of the machine body, and are configured so as to be able to change the positions to be leveled in accordance with the inter-row setting of the insertion hoppers 20a and 20 b. Further, the left and right leveling rotating bodies 371, 371 are configured to reliably fix soil around the planted seedlings when the left and right positions are adjustable, and prevent the seedlings from being fallen down or from being grown poorly at low temperatures.

In the transplanter of the present embodiment, an operation seat 46 is provided on which an operator sits so that the operator who supplies seedlings to the seedling supply device 43 carries out a seedling supply operation. Specifically, the work seat 46 is disposed rearward at the center of the right and left of the body, which is the front side of the seedling supply device 43. The operator sitting on the work seat 46 sits on the front side of the seedling supply device 43 in a posture facing the rear side, and performs the seedling supply work in correspondence with the front side of the seedling supply device 43, particularly the front linear portion in the circulating movement path of the seedling storage body 22.

Further, a main clutch lever 125 is provided on the other of the left and right sides of the steering panel 47a, and the main clutch lever 125 is incorporated in the transmission case 39 to connect/disconnect the transmission of the driving force to the left and right traveling transmission cases 38 and 26.

In the transplanter 10 of the present invention, when moving to a field, unloading from a transport unit, storing in a warehouse, and turning around at the end of the field, the operator operates the operating handle 404 at the rear of the machine body. On the other hand, in the transplanting operation of seedlings, it is difficult for an operator to get on the operation seat 46 of the traveling vehicle body 40 and operate the operation panel 47a of the operation handle 404.

Therefore, the traveling vehicle body 40 is provided with an on-vehicle body control unit 126 for the operator who gets on the work seat 46.

As shown in fig. 4 and 10, a rear step plate 127 inclined upward toward the rear side of the machine body is provided at a lower portion of the seedling supply device 43, and as shown in fig. 4, 5, and 10, a vehicle body upper control portion 126 is provided at either of the right and left sides of the rear step plate 127, in this case, at an end portion of the right side of the machine body (the left side based on an operator sitting on the work seat 46).

The vehicle body upper control unit 126 has a 2 nd vehicle height adjustment lever 128 disposed on the outermost body side, the 2 nd vehicle height adjustment lever 128 adjusts the vehicle height of the traveling vehicle body 40 to adjust the insertion depth of the insertion hoppers 20a, 20b, and a 2 nd main clutch lever 129 is disposed on the inner body side of the 2 nd vehicle height adjustment lever 128.

In addition, since there is substantially no need to fix the height during the transplanting operation of the seedlings, the 2 nd vehicle height adjusting lever 128 is constructed to have only the "high" position and the "low" position.

Further, a vehicle height adjusting lever guide having a display scale indicating a vehicle height standard is provided at an outer end of the rear pedal 127 in an inclined posture upward toward the front side of the machine body so that the 2 nd vehicle height adjusting lever 128 is converged in the frame, and a main clutch lever guide having the 2 nd main clutch lever 129 converged in the frame is provided at an inner side of the machine body in an inclined posture upward toward the front side of the machine body.

Further, the 2 nd vehicle height adjustment lever 128 projects toward the body front side by a larger amount than the 2 nd main clutch lever 129.

The ride height adjustment lever guide and the main clutch lever guide are disposed at a certain up-down interval from the upper surface of the side pedal 118. The vertical interval is set to a degree (for example, about 15cm to 20 cm) that a space can be secured even when the operator's foot is placed therein.

According to the above configuration, the operator riding on the floor pedal 122 and the work seat 46 can perform the manual operation of the transplanting depth and the manual operation of the connection/disconnection of the transplanting work without going down the traveling vehicle body 40, and therefore, the work efficiency is improved and the transplanting accuracy of the seedlings is improved.

Further, by disposing the 2 nd main clutch lever 129 inside the machine body closer to the work seat 46 than the 2 nd vehicle height adjustment lever 128, the hand of the operator can easily reach the 2 nd main clutch lever 129 used for the replenishment of seedlings, the correction of the transplanting state, the rest, and the like, and the labor can be reduced.

In particular, the transplanting work of the seedlings can be promptly interrupted when a problem occurs, the re-transplanting work of the seedlings is not required, and the number of the seedlings which are not suitable for growth and are discarded is reduced.

Further, by projecting the 2 nd vehicle height adjustment lever 128 further toward the front side of the machine body than the 2 nd main clutch lever 129, it is not necessary to largely project the arm when the 2 nd vehicle height adjustment lever 128 on the side away from the work seat 46 is operated, and the labor of the operator is reduced.

Further, by providing the right and left side clutch pedals at the rear pedal 127, when the traveling direction of the traveling vehicle body 40 deviates from the straight traveling direction based on the ridges, any one of the side clutch pedals is operated to temporarily set the corresponding side clutch in the off state, thereby correcting the traveling path of the traveling vehicle body 40 and preventing the transplanting position of the seedling from meandering in the right and left directions.

Further, since the vertical space is formed between the vehicle height adjustment lever guide and the main clutch lever guide, that is, the vertical space between the vehicle body upper operation portion 126 and the side step 118, the movement of the feet of the operator riding on the work seat 46 is not hindered, and the operator can ride on the work seat 46 in a comfortable posture, thereby reducing the labor.

In the side view of the machine body, preliminary seedling racks 50 are provided on both the right and left sides of the work seat 46 and above the transmission axles of the running wheels 44, and the preliminary seedling racks 50 can accommodate seedlings supplied to the seedling supply device 43.

The prepared seedling rack 50 is configured such that a support stay is provided on the upper part of a seedling support column 51 projecting to the outside of the body of the traveling vehicle body 40, a seedling support rotating arm capable of switching between a rotating state and a non-rotating state is provided on the support stay, a seedling rack frame in the vertical direction is disposed on the seedling support rotating arm at intervals, one end part of a loading table 55 is mounted on the same surface of the seedling rack frame, and a container such as a seedling box or a seedling tray for accommodating a seedling for replenishment is placed on the loading table 55.

Only one of the tables 55 may be provided in the vertical direction, but a plurality of the tables 55 may be disposed at intervals in the vertical direction that do not hinder the removal of the container.

The prepared seedling racks 50 having the above-described structure are respectively provided on the left and right sides of the traveling vehicle body 40, and the seedling placing/rotating arms are rotated above the support stays in accordance with the situation.

For example, in the case of transplanting a seedling, the longitudinal direction of the placing table 55 is directed in the front-rear direction of the machine body, so that it is easy to take out a container of the seedling from the placing table 55 and to replace the empty container, thereby improving the work efficiency.

Further, since the placement tables 55 are positioned on both the left and right sides of the traveling vehicle body 40 at this position, the operator can easily grasp the end portions of the riding portions of the traveling vehicle body 40, and prevent the feet from being exposed from the traveling vehicle body 40 and losing their posture.

When the operator rides in and out of the traveling vehicle body 40, the seedling placing/rotating arm is rotated by about 90 degrees.

Thus, a space for the passenger to land is formed on both the left and right sides of the traveling vehicle body 40.

Further, the operator can also take in and out from the front side of the traveling vehicle body 40, but when the seedling placing/rotating arm is rotated to bring the seedling frame to the front side of the machine body and the placing table 55 to the rear side of the machine body, the operator can use the seedling frame as the armrest, and therefore, the traveling vehicle body 40 can be smoothly taken in and out.

Further, when the container for seedlings is loaded or unloaded on the loading table 55, if the container is loaded or unloaded from the rear side of the machine body, there is no member that hinders the loading or unloading of the container, and therefore, the work efficiency is improved.

The work seat 46 is mounted to the traveling vehicle body 40 at an upper portion of a portion of the seat frame that is in the left-right direction of the machine body, and the seat frame spans a machine body cover 48 that is コ -shaped in front view or rear view and covers the engine 41 and the like. The upper part of the seat frame is attached with base parts of the left and right seat stays facing the front side of the body, and the work seat 46 is attached so as to be rotatable in the front-rear direction of the body about a rotation fulcrum in the left-right direction of the base parts of the left and right seat stays.

Thus, the work seat 46 can be placed in a state of contacting the vicinity of the front end of the body of the seedling supply device 43, and therefore, it is possible to prevent sand and rain water from adhering to the seating portion of the operator when the work is interrupted.

Claims (3)

1. A transplanter comprising a traveling vehicle body (40) provided with transplanting hoppers (20a, 20b) for transplanting seedlings into a field, and a control handle (404) for controlling the traveling vehicle body (40) at the rear part of the body,

an assist pedal (412) is provided below the control handle (404), and the lift-up of the front part of the body of the traveling vehicle body (40) is assisted by stepping on the assist pedal (412) during turning.

2. The grafting machine of claim 1,

a pedal frame (411) is provided in the steering handle (404) in a tilted posture toward the rear side of the machine body, and one or more auxiliary pedals (412) are provided on the pedal frame (411).

3. The grafting machine of claim 2,

the transplanter is provided with a transmission box (26) for operating the transplanting hoppers (20a, 20b), the transmission box (26) is provided with a connecting plate (400),

the pedal frame (411) is provided with a pedal reinforcing frame (413), and the pedal reinforcing frame (413) and the connecting plate (400) are connected by a reinforcing rod (414).

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