JP2000245209A - Step structure in sulky rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject step structure designed to be convenient to handle during the period of time out of operation such as being in transport or storage activity while enabling seedling replenishment to a seedling planting device to be conducted in high operability. SOLUTION: This step structure has such a scheme that a steering step 14 is set up on the foot part of a seat 13, outside the steering step 14, an overhung steering step 15 is set up so as to situate the rear portion on both left and right sides of the seat 13, a rear step 16 is set up above a rear wheel 7 so as to be doubling as a fender, a bridging step 17 is set up over a span ranging from the overhung steering step 15 and the rear step 16, and an extending rear step 18 adjacent to the outer end of the overhung steering step 15, an extending rear step 19 adjacent to the outer end of the rear step 16, and an extending bridging step 20 adjacent to the outer end of the bridging step 17 are put to swing changeover at discretion between step-active posture and folding containment posture.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a step structure of a riding type rice transplanter having a plurality of seedling-planting devices connected to a rear portion of the riding type self-propelled body. A driving step is provided on the left and right sides of the seat, and an overhanging operation step is provided on each of the left and right outer sides of the driving step. And a connecting step is provided between the rear end of the overhang operation step and the front end of the rear step.

[0002]

2. Description of the Related Art Conventionally, in order to supply seedlings to a seedling rest of a seedling planting apparatus, conventionally, an operator rides on an overhang operation step, puts a knee on a rear step, or rides on a rear step, for example. The seedlings were being replenished to the seedling rest while riding on the running machine.

[0003]

However, the prior art described above has the following disadvantages. That is,
In recent years, multi-planting of seedling planting apparatuses, such as 8-row planting and 10-row planting, has become popular in improving planting work efficiency. For this reason, the lateral width of the seedling planting device becomes large, which results in that the seedling rest largely protrudes right and left outward from the rear step or the overhang operation step. Therefore, according to the conventional technique in which the operator must step on the overhanging operation step or the rear step to supply the seedlings to the seedling rest, the overhang amount of the overhang operation step or the rear step to the left and right is reduced. If the number is small, the operator is forced to take an unreasonable posture, such as leaning left and right outward from the overhang operation step or the rear step, when supplying the seedlings, and the seedling supply workability is deteriorated. However, if the overhang amount of the overhang operation step and the rear step is increased to the left and right, the width of the left and right sides is made as small as possible so that it can be easily transported and stored on the truck bed. When the seedling planting device is configured to be freely foldable, the seedling planting device becomes compact in the horizontal direction due to folding during transportation and storage, but the riding type self-propelled body is Leaving it inconvenient for transportation and storage.

An object of the present invention is to make it possible to supply seedlings to a seedling planting apparatus with good workability and to handle them conveniently during non-work such as transportation and storage.

[0005]

The features, functions and effects of the present invention according to claim 1 are as follows.

[Characteristics] An operation step is provided at the foot of the front part of the seat.
An overhang operation step for arranging the rear portion on both left and right sides of the seat is provided, and a rear step also serving as a fender is disposed on each of the upper portions of the left and right rear wheels, and a rear end of the overhang operation step and a front end of the rear step are provided. A step structure of a riding type rice transplanter having a connecting step disposed therethrough, an extended operation step connected to left and right outer ends of the overhang operation step,
The extended rear step connected to the left and right outer ends of the rear step and the extended connecting step connected to the left and right outer ends of the connecting step are swung into a left and right outwardly protruding step action posture and a left and right inwardly retracted folded storage posture. The point is that it is provided so that it can be dynamically switched.

[Operation] Since an extension operation step, an extension connection step, and an extension rear step, each of which can be switched between a step action posture and a folding storage posture, are provided, during the planting operation, the extension operation step and the extension connection step are performed. And the extended rear step is switched to a step action posture, and these are used as work decks for replenishing seedlings to the seedling planting apparatus. Even without increasing the amount of overhang to the left and right outwards of the overhang operation step and the rear step,
It is possible to supply the seedlings to the left and right end portions of the seedling plant that protrudes to the left and right sides of the overhang operation step and the rear step without forcing the operator to excessively embark on the left and right sides. On the other hand, at the time of non-work such as transportation or storage, by switching the extended operation step, the extended connecting step, and the extended rear step to the folded storage position, the extended operation step, the connecting step, and the rear step of the extended step group are switched. The left-right width of the ride-type self-propelled body can be kept small by reducing the amount of protrusion of the right and left outwards or making it zero.

In addition, since the positions of the extended operation step, the extended connecting step, and the extended rear step are switched by swinging, the extended step group is made durable and easy to use. The postures can be switched more easily than when the postures are switched.

[Effect] Therefore, while supplying the seedlings to the seedling planting apparatus with good workability, handling during non-work such as transportation and storage can be conveniently performed, and the posture of the extension step group is switched for that purpose. Workability has been improved.

The features, functions and effects of the present invention according to claim 2 are as follows.

[Features] In the present invention according to the first aspect, the extension connecting step is the first step at the rear end of the extension operation step.
By swinging around the left-right axis, it is configured to be freely switchable between a step action posture and a storage position folded on the extension operation step, and the extension rear step is a second left-right axis at the upper end of the extension connection step. By swinging around, it is configured to be freely switchable between the step action posture and the storage posture that is substantially flush with the extension connecting step, and the extension operation step is configured to swing around the front-rear axis at both left and right ends of the overhang operation step. It is configured to be switchable between a step action posture and a standing storage posture by movement.

[Operation] The extended rear step and the extended connecting step are switched by switching the extended rear step to the retracted position, switching the extended connecting step to the retracted position, and then switching the extended operation step to the retracted position. Can be stored in the left and right outer end portions of the overhang operation step in a compact state in which the extension steps are overlapped. In other words, even if the fertilizer applicator is provided in the rear part of the seat so as to protrude to the left and right beyond the upper part of the rear step, the extended rear step is switched to the retracted position while the extended connecting step is switched to the retracted position. Thereby, the extended rear step can be folded and stored without being disturbed by the fertilizer application device.

[Effect] Therefore, it is possible to provide a useful structure as a step structure of a riding type rice transplanter having a fertilizer application device provided at a rear portion of a seat.

The features, functions and effects of the present invention according to claim 3 are as follows.

[Features] In the present invention according to the first and second aspects, a beam for supporting the extended operation step in the overhang operation step in a step action posture is provided in the extended operation step.

[Effect] A beam for supporting the extended operation step in the overhang operation step in the step operation posture is provided in the extended operation step, and the beam is moved right and left inward with the switching of the extended operation step to the folded storage position. The beam and the supporting structure for the beam do not require a structure for storing the beam.For example, the working position that protrudes left and right outward to support the extended operation step and the left and right inside The beam mounting structure can be simplified and inexpensive as compared with a case where a beam is provided in the overhang operation step so as to be freely changeable to the retracted storage position.

[Effect] Accordingly, the present invention can be implemented with a simple structure and at low cost.

The features, functions and effects of the present invention according to claim 4 are as follows.

[Features] In the present invention according to the first, second, and third aspects, the rear end of the overhang operation step and the rear end of the extension operation step, and the front end of the rear step and the front end of the extension rear step are moved back and forth. Located in the direction near the rear end of the seat.

[Operation] Since the rear end of the overhang operation step and the rear end of the extension operation step are located near the rear end of the seat, the rear end of the overhang operation step and the rear end of the extension operation step are planted with seedlings. It can be as close as possible to the device, and as described above, even if a fertilizer application device is provided behind the seat, it is impossible to supply seedlings to the seedling planting device via the fertilizer device. It can be performed without forcing the posture. In addition, the front end of the rear step and the front end of the extended rear step are located near the rear end of the seat, and the rear end of the overhang operation step and the front end of the rear step are connected to each other. Since the front end and the front end are respectively approached, it is possible to easily get on and off from the overhang operation step and the extension operation step to the rear step and the extension rear step.

[Effect] Therefore, even when a fertilizer application device is provided at the rear of the seat, it is possible to easily supply the seedlings to the seedling planting device, and to provide a rear step and an extended rear step accompanying the seedling supply. Synergistic with the ability to easily get on and off the plant, it has become possible to replenish the seedlings with even higher workability.

The features, functions and effects of the present invention according to claim 5 are as follows.

[Features] In the present invention according to the first, second, third, and fourth aspects, the step surfaces of the overhang operation step and the extension operation step are made of a punched metal pressed into a state having irregularities. At one point.

[Operation] A step surface is formed from a punched metal pressed into a state having irregularities, and irregularities serving as a non-slip surface, holes for seeing downward and for reducing the weight are formed on the step surface. Therefore, as the overhang operation step and the extension operation step, obtain a lightweight one having a non-slip function and a see-through function by inexpensive means simply by using punched metal pressed into the step surface component. Can be.

[Effect] Therefore, it is possible to provide a step structure which can be implemented at a low cost while having high functions such as having a non-slip function and a see-through function and being lightweight.

The features, functions and effects of the present invention according to claim 6 are as follows.

[Characteristics] In the present invention according to the first, second, third, fourth and fifth aspects, a pair of right and left steps for getting on and off are located on the left and right sides of a driving part in which a pair of left and right getting on and off steps are arranged in front of the seat. The point is that it is arranged in a state where it does.

[Operation] Noting that there are spaces on the left and right sides of the prime mover in front of the seat, a pair of right and left steps for getting on and off are arranged at the front of the driving step so as to be located on both left and right sides of the prime mover. By doing so, it is possible to get on and off the driving unit from the front position of the riding type self-propelled body through these getting on and off steps, so that the front end is brought close to the ridge and the riding type self-propelled body is stopped, so that it does not enter the field. The operator can get on and off the driving section from the ridge.

[Effect] Accordingly, the getting on / off property can be improved.

The features, functions and effects of the present invention according to claim 7 are as follows.

[Features] In the present invention according to claim 6, the seedlings are placed from the rear into the lower rear part of the seedling placing part of the spare seedling placing apparatus in which the seedlings are placed in a plurality of upper and lower stages while being located on the left and right sides of the getting on and off step. The entrance is connected to the front of the overhang operation step.

[Effect] An entry portion which enters from the rear into a lower rear portion of the seedling placing portion of the spare seedling placing device located on the left and right sides of the getting on / off step is connected to the front portion of the overhanging operation step, and when viewed from above, Since a gap is not formed between the seedling placing portion and the overhanging operation step, the foot is not removed from between the overhanging operation step and the seedling placing portion.

[Effects] Therefore, the workability of taking out the spare seedlings from the spare seedling placing device and supplying them to the seedling planting device can be improved.

The features, functions and effects of the present invention according to claim 8 are as follows.

[Features] In the present invention according to the sixth and seventh aspects, an auxiliary step for getting on and off which is located at a lower level than the step for getting on and off is arranged in front of the step for getting on and off.

[Operation] An auxiliary step for getting on and off is arranged in front of the step for getting on and off, so that an upper and lower intermediate step surface is formed between the upper surface of the getting on and off step and the upper surface of the ridge. Getting on and off from the getting on and off step from can be easily performed.

[Effect] Accordingly, the getting on / off performance can be further improved.

[0038]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a riding type rice transplanter has a quadruple link mechanism 2 at the rear of the riding type self-propelled body 1. As shown in FIG.
The seedling planting device 3 is connected so as to be able to ascend and descend via a, a lifting cylinder 4 using a hydraulic cylinder for operating the seedling planting device 3 is provided, and a fertilizer application device 5 is provided.

The riding type self-propelled body 1 has a driving unit 9 and a driving unit 10 mounted on a body frame 8 having a pair of left and right front wheels 6 for steering driving and a pair of left and right rear wheels 7 for driving. A pair of left and right spare seedling placing devices 11 are provided.
The driving unit 10 includes a steering wheel 12 and a seat 1.
3 and a driving step 14 arranged at the foot of the front part of the seat 13.

The steps of the self-propelled self-propelled vehicle 1 are, as shown in FIGS.
Are supported by the body frame 8, and overhang operation steps 15 are provided on both left and right outer sides of the operation step 14 so that rear portions are located on both left and right sides of the seat 13. Rear step 16
And a connecting step 17 is arranged between the rear end of the overhang operation step 15 and the front end of the rear step 16. The extension operation step 18 is connected to the left and right outer ends of the overhang operation step 15 and the rear step. 16 and an extended connecting step 20 connected to the left and right outer ends of the connecting step 17. A pair of right and left getting on and off steps 2 is provided at the front of the driving step 14.
1 are arranged on the left and right sides of the driving unit 9,
An auxiliary step for getting on and off 22 located at a lower level than the step for getting on and off 21 is arranged in front of these steps 21 for getting on and off.

The overhang operation step 15 is connected and fixed to the body frame 8 with the rear end positioned near the rear end of the seat 13 in the front-rear direction. As shown in FIG. A punching metal 15A pressed into a state having irregularities is stretched over a frame 15B. That is, this overhang operation step 15
Is formed of a punching metal 15A, and has a non-slip function due to the unevenness of the punching metal 15A, and also has a see-through function for seeing downward through holes in the punching metal 15A.

The rear step 16 is connected and fixed to the body frame 8 with the front end positioned near the rear end of the seat 13 in the front-rear direction, and is formed by attaching a metal plate 16A such as an iron plate to the frame 16B. ing. That is, the step surface of the rear step 16 is formed of the metal plate 16A.

The connecting step 17 is performed in the body frame 8
The punching metal 17A is stretched over the frame 17B. In other words, the step surface of the joining step 17 is
A, and a function of seeing through the hole of the punching metal 17A to see below (the rear wheel 7).

As shown in FIGS. 6, 7, 8, and 10, the extension operation step 18 is an overhang operation step 1.
(5) The swinging of the left and right ends around the front-rearward axis Y switches between a step action posture which protrudes left and right outward and falls down, and a storage posture which retreats left and right inward and stands up, and a rear end. Is attached to the overhang operation step 15 in a state of being located near the rear end of the seat 13 in the front-rear direction, and as shown in FIG. On the frame 18B. In other words, the step surface of this extended operation step 18 is the punching metal 1
8A, the non-slip function is exhibited by the unevenness of the punching metal 18A, and the see-through function for seeing downward through the hole of the punching metal 18A is exhibited.

The extension connecting step 20 is configured such that the rear end of the extended operation step 18 in the step action posture swings around the first left-right axis X1 and the step action position located on the left and right sides of the connection step 17. Extended operation step 1
8 is attached to the extended operation step 18 so as to be switched to the storage posture folded over, and is constituted by extending a punching metal 20A to a frame 20B. In other words, the step surface of the extension connecting step 20 is made of a punched metal 20A, and exerts a see-through function for seeing downward through the hole of the punched metal 20A.

As shown in FIG. 9, the extended rear step 19 is an extended connecting step 2 in a step action posture.
0, by swinging around the second left-right axis X2 at the upper end, is switched to a step action posture located on the left and right outer sides of the rear step 16 and a storage posture substantially continuous with the extension connecting step 20. In addition, the front end is located near the rear end of the seat 13 and attached to the extension connecting step 20, and a metal plate 19A such as an iron plate is
9B. That is, the step surface of the rear step 19 is formed of the metal plate 19A.

Therefore, as shown in FIG. 3, FIG. 5, FIG. 6, and FIG. 8, the extension step including the extension operation step 18, the extension rear step 19, and the extension connection step 20 is performed by setting the extension connection step 20 to the storage posture. By switching, the extension rear step 19 is switched to the storage position, the extension connecting step 20 and the extension rear step 19 are folded so as to overlap the extension operation step 18, and in this state, the extension operation step 18 is switched to the storage position. It is configured to switch to the folded storage position that has been retired left and right inward.

The means for supporting the extended operation step 18 in the step action posture is provided with a body frame as the extension operation step 18 swings from the retracted position to the step operation position, as shown in FIGS. The cylindrical frame 31, which reversibly contacts and engages with the portal-shaped support frame 30 fixed to the block 8 and is prevented from further swinging, is fixed to the extended operation step 18, and the extended operation step 18 is a step function. By sliding left and right while in the posture,
The engaging tool 32, which is fixed to the overhang operation step 15, is detachably engaged with the engaging tool 32. A fulcrum part that is inserted and held in the frame 31 to form the front-rearward axis Y, a contact engagement part of the cylindrical frame 31 with the support frame 30, and an engagement part of the beam 33 with the locking member 32 Are configured to support the extended operation step 18 in the step action posture at the following three points. The beam 33 is
A cylindrical body 33a slidably inserted and held in the cylindrical frame 31 and a tip portion 33b engaged with the locking member 32. 12 and 13, a locking hole 34 is formed in the cylindrical body 33a, and the beam 33 is
The swinging lock member 35 having an operation lever 35a which can be engaged and disengaged with the locking hole 34 in the state of being engaged with the lock member 32 and prevents the beam 33 from sliding when engaged with the locking member 32.
And a spring 36 is provided to urge the swing lock member 35 to the engagement posture. Then, the beam 33 is extended as shown in FIG.
Is vertically retracted in the storage position, so that it can be freely disengaged at the distal end portion 33b with respect to the second locking member 36 mounted on the body frame 8 and is engaged with the second locking member 36 around the axis Y in the front-rear direction. Is prevented from swinging together with the extended operation step 18 of FIG. That is, the beam 33 also serves as a lock for fixing the extended operation step 18 to the storage posture. The means for holding the beam 33 in the position where it is engaged with the second locking member 36 is detachable with respect to the locking hole 34 when the beam 33 is engaged with the second locking member 36. The second locking member 37 of the slide type for preventing the movement of the beam 33 by joining
And a second spring 38 for urging the second locking member 36 to move in the engaging direction is provided. As shown in FIGS. 7 and 8, the second locking member 36 protrudes outward by swinging around the second front-rearward axis p to allow the beam 33 to be engaged. The second spring 38 is configured to switch the second locking member 36 when the second locking member 36 is in a set position on the way. The second locking member 36 is pivotally biased to the upright storage position when the device is in the upright storage position by swinging and urging the device to the lowering position, and is in the upright storage position side from the set position. It is also used as a posture holding spring for holding in the upright storage posture.

As shown in detail in FIG. 9, the means for supporting the extended rear step 19 in the step action posture is such that the rear step 16 is slid left and right while the extended rear step 19 is in the step action attitude.
The cylindrical locking member 40, which is fixed to the cylindrical locking member 40, is inserted into and engaged with the cylindrical locking member 40, that is, the bar-shaped beam 41 supported by the rear step 16 is extended. The means for inserting and holding the cylindrical frame 42 fixed to the beam 41 and holding the beam 41 at the engagement position is, as shown in FIG. 14, the beam 41 when the beam 41 is at the engagement position. An oscillating locking tool 44 with an operating lever 44a that is detachably engageable with the fixed engaging tool 43 and that holds the beam 41 in the engaged position by being engaged.
Are attached to the cylindrical locking member 40.

The extension connecting step 20 is connected to the rear end of the extension operation step 18 at the lower end (front end) so as to be swingable about the first left-right axis X1 at the lower end (front end), as described above.
And it is supported by the extended operation step 18 and the extended rear step 19 by being connected to the front end of the extended rear step 19 at the upper end (rear end) so as to be swingable around the second left-right axis X2.

As shown in FIGS. 5, 6, and 10, the extension operation step 18 is provided with an auxiliary step 50 for getting on and off the vehicle, the step surface of which is positioned at a lower level than the step surface of the extension operation step 18. Have been. The means for attaching the auxiliary step 50 to the extended operation step 18 includes attaching the front and rear ends of the auxiliary step 50 to the first stay 51 attached to the extended operation step 18 so as to swing freely around the first longitudinal axis y1. The other front and rear ends of the auxiliary step 50 are attached to the second stay 52 attached to the operation step 18 via the pins 53 so as to be swingable around the second front and rear axis y2, and the first front and rear axis y1 and the pin are connected to each other. The first stay 51 is formed by forming a triangle with 53 and the auxiliary step 50.
And, by preventing the swing of the second stay 52, the auxiliary step 50 is configured to be supported in a fixed position, and the second stay 52 is disconnected from the pin 53 to connect to the extended operation step 18. By releasing, the first
The first stay 51 is allowed to swing around the first front-rearward axis y1 with respect to the extension operation step 18 toward the lower surface side of the extension operation step 18 and the second stay 52 around the pin 53. The auxiliary step 50, the first stay 51, and the second stay 52 are overlapped on the lower surface of the extended operation step 18 by the swing of the second stay 52. 5
Reference numeral 4 denotes a spring that biases the stay 52 in the direction of insertion into the pin 53.

The getting-on / off assisting step 22 is moved to a working position located diagonally below and forward of the getting-on / off step 21 and a storage position approaching the front part of the driving unit 9 by swinging about the axis x in the horizontal direction. It is attached to the body frame 8 so as to be freely switchable.

The seedling placement device 3 includes a seedling rest 61 which is driven to reciprocate in a set stroke in the left-right direction, and a vertically moving operation interlocking with the movement of the seedling rest 61, thereby providing a seedling rest 61. It has a well-known basic structure including a planting mechanism 62 for taking out a unit amount of seedlings from the plant and planting it in a field, and a grounding float 63 for sliding the field scene as the vehicle travels and leveling the surface to be planted. In the seedling rest 61, ten seedling rests 61a corresponding to the planting strips are juxtaposed in the left-right direction, and the planting mechanism 62 has an interval in the left-right direction corresponding to each seedling rest 61a. Ten are provided at a distance. That is, the seedling planting apparatus 3 is of a ten-row planting type. Then, as shown in (a) and (b) of FIG. 3, the left device portion 3L provided with five seedling placement portions 61a on the left side and the right device portion 3R provided with five seedling placement portions 61a on the right side. The operation posture can be freely switched between a left and right operation posture and a storage posture of a small left and right width in which the left device portion 3L and the right device portion 3R are stacked back to back.

The fertilizer application device 5 includes a fertilizer hopper 71 mounted on the self-propelled body 1 at a position located behind the seat 13.
And a feeding device 72 for feeding the fertilizer from the fertilizer hopper 71, a fan 73 for generating an airflow for conveying the fed fertilizer, and a fertilizer supplied along with running while forming a fertilizing groove beside each planted strip. And a supply hose 76 that guides the fed fertilizer to each of the fertilizer grooves.

The spare seedling placing device 11 is installed in a state located on the left and right outer sides of the getting on and off step 21,
The upper and lower columns 11a and 11b are provided with a plurality of upper and lower stages of seedlings 11.
c. Each of the overhanging operation steps 15 is integrally provided with an entry portion 15a that enters the rear lower portion of the seedling placing portion 11c from behind. A grip G is provided on the front column 11a so that the worker can lift his / her body when getting on and off using the above-mentioned auxiliary step for getting on and off 22.

In such a riding type rice transplanter, as shown in FIG. 3A, the seedling planting device 3 is switched to the working posture, and the extension step group is switched to the step working posture.
The planting operation is performed, and as shown in (b) of FIG. 3, the seedling planting device 3 is switched to the storage position, the extension step group is switched to the storage position, and transportation and storage are performed.
At the time of work, since the extension step group is in the step action posture, the extension operation step 18 and the extension rear step 19 are used as work steps, regardless of whether the seedling rest 61 has a large left-right width. The self-propelled body 1 can be advantageously transported and stored by reducing the lateral width of the self-propelled body 1 by switching the extended step group to the storage position during transportation or storage.

[Another Embodiment] The folding structure of the extension step group can be appropriately changed.

[Brief description of the drawings]

FIG. 1 is a plan view of a riding rice transplanter.

FIG. 2 is a side view of a riding rice transplanter.

FIG. 3 is a schematic plan view of a riding type rice transplanter in a working state and a transport / storage state.

FIG. 4 is a plan view of an essential part of a step.

FIG. 5 is a side view of a step.

FIG. 6 is a side view of the step in a folded state.

FIG. 7 is a cutaway front view of the extended operation step of the step action posture.

FIG. 8 is a cutaway front view of the extended operation step of the storage posture.

FIG. 9 is a cutaway rear view of the extended rear step.

FIG. 10 is a front view of an extended operation step.

FIG. 11 is a sectional view of a punching metal.

FIG. 12 is a cutaway side view of the beam position fixing means.

FIG. 13 is a perspective view of a main part of a beam.

FIG. 14 is a perspective view of a main part of a beam.

FIG. 15 is a sectional view of a beam.

[Explanation of symbols]

 Reference Signs List 7 rear wheel 9 prime mover 11 spare seedling placing device 11c seedling placing unit 13 seat 14 operating step 15 overhanging operation step 15a entry part 16 rear step 17 connecting step 18 extended operation step 19 extended rear step 20 extension connecting step 21 getting on and off step 22 Auxiliary steps for getting on and off 33 Beam X1 First left-right axis X2 Second left-right axis Y Front-rear axis

Claims (8)

[Claims] An operation step is provided at a foot portion of a front portion of a seat, and an overhang operation step is provided at each of the left and right outer sides of the operation step to position a rear portion on both left and right sides of the seat. A step structure of a riding type rice transplanter, wherein a rear step also serving as a fender is disposed on each of the upper parts of the wheels, and a connecting step is disposed between a rear end of the overhang operation step and a front end of the rear step. An extended operation step connected to the left and right outer ends of the overhang operation step, and an extended rear step connected to the left and right outer ends of the rear step;
Step structure of a riding type rice transplanter in which an extended connecting step extending to the left and right outer ends of the connecting step is swingably switched between a step action posture protruding left and right outward and a folded storage position retracted left and right inward. . 2. The extension connecting step is configured to be switchable between a step action posture and a storage posture folded over the extension operation step by swinging around a first left-right axis at a rear end of the extension operation step. And extended rear steps,
By swinging the upper end of the extension connecting step about the second left-right axis, it is possible to freely switch between the step action position and the storage position that is substantially flush with the extension connection step. 2. The step structure of a riding type rice transplanter according to claim 1, wherein the step structure is configured to be freely switchable between a step action posture and an upright storage posture by swinging around left and right ends of a longitudinal axis. 3. The step structure of a riding type rice transplanter according to claim 1, wherein a beam for supporting the extended operation step in the overhang operation step in a step action posture is provided in the extended operation step. 4. The rear end of the overhang operation step and the rear end of the extension operation step, and the front end of the rear step and the front end of the extension rear step are located near the rear end of the seat in the front-rear direction. 4. The step structure of the riding type rice transplanter according to any one of the items 3 to 3. 5. The riding type rice transplant according to any one of claims 1 to 4, wherein the step surfaces of the overhang operation step and the extension operation step are made of punched metal pressed to have irregularities. Machine step structure. 6. The vehicle according to claim 1, wherein a pair of right and left steps is provided at a front portion of the driving step so as to be positioned on both left and right sides of a driving unit disposed in front of the seat. Step structure of the riding type rice transplanter described. 7. An entry portion which enters from the rear into a lower rear portion of a seedling placing portion of a reserve seedling placing device for placing seedlings in a plurality of upper and lower stages in a state positioned on the left and right outer sides of the getting on / off step, at a front portion of the overhanging operation step. The step structure of a riding type rice transplanter according to claim 6, which is provided continuously. 8. The step structure of a riding type rice transplanter according to claim 6, wherein an auxiliary step for getting on and off is located at a lower level than the step for getting on and off the step.