JPH05328810A - Step floor for sulky rice transplanter - Google Patents

Abstract

PURPOSE:To facilitate various kinds of maintenance by attaching and detaching part located at the upper side of a power transmission on a step floor. CONSTITUTION:A step floor 4 consists of part 4b located at the upper side of a power transmission, part 4a located at the upper side of front wheels 2 and rear wheels 3, etc. The floor part positioned at the upper side of the power transmission is attached and detached without removing other floor parts and repair and adjustment of the power transmission and control of transmission case are facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a step floor provided on a traveling vehicle body of a passenger rice transplanter.

[0002]

2. Description of the Related Art Conventionally, there is a riding rice transplanter in which a power transmission device is arranged in the center of the left and right sides in front of a seat, and a step floor is provided to cover the upper side of the power transmission device, the left and right front wheels, and the upper sides of the rear wheels. The floor surface of the step floor is integrally provided and is easily attached to and detached from the traveling vehicle body.

[0003]

By the way, in the above-mentioned riding rice transplanter, when performing maintenance such as adjustment of the transmission portion of the power transmission device, replacement of parts, and replenishment of oil for the transmission system and hydraulic system, the upper side of the power transmission device Is covered with step floors, which must be removed. However, since the conventional step floor of the related art is integrated as described above, not only the upper portion of the power transmission device but also the entire surface of the floor is removed, resulting in poor work efficiency. In addition, since it is a single floor, it is large, and a large space is needed to place the removed step floor.Especially when it becomes necessary to perform maintenance while working in the paddy field, the removed step floor should be covered with muddy water. I could not put it in the paddy field, and I had to waste time to carry it to the ridge.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention has a power transmission device disposed in the center of the left and right sides in front of the seat, and the power transmission device has an upper side and left and right front wheels and a rear wheel. In a riding rice transplanter provided with a step floor covering the upper side of the wheel, the step floor is configured to be dividable into a portion located above the power transmission device, the front wheel, and a portion located above the rear wheel, The stepped floor of the passenger rice transplanter is characterized in that the floor portion located above the power transmission device is detachably attached without removing the other floor portions.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 in the drawing denotes a passenger-type traveling vehicle body, which includes a pair of left and right front driving wheels 2 and 2 for steering and a pair of left and right rear driving wheels 3 and 3. A planting work machine P is attached to the rear side of the traveling vehicle body 1 by a link device L that moves up and down.

The traveling vehicle body 1 has a mission case 1 on the front side.
a is disposed, front wheel axle frames 1b and 1b are fixed from the left and right side portions of the mission case 1a, and front wheel final cases 1c and 1c are attached to both ends of the frames 1b and 1b.
Front wheels 2 and 2 are attached to front wheel axles that are connected to each other and project outward from the lower sides of the cases 1c and 1c. The power in the transmission case 1a is transmitted through the front wheel axle frames 1b, 1b and the cases 1c, 1c, and the front wheels 2, 2 are driven and rotated. Also, the mission case 1a
The front ends of the frames 1d and 1d are fixedly attached to the rear side of the rear frame. The rear ends of the frames 1d and 1d are fixed to the lateral frame 1e, and the bearings at the center of the lateral frame 1e have the axial center in the front-rear horizontal direction at the left and right central portions of the rear wheel frame 1f. The rear wheel rolling shaft 1g, which is fixed toward the rear wheel, is fitted. Rear wheel gear cases 1h and 1h are fixed to the left and right ends of the rear wheel frame 1f, and the rear wheels 3 and 3 are attached to the rear wheel axles protruding laterally from the outer sides of the rear wheel gear cases 1h and 1h. It is installed. Therefore, the rear wheel frame 1f to which the rear wheels 3 and 3 are attached is the rear wheel with respect to the vehicle body frame composed of the mission case 1a, the frames 1d and 1d, and the lateral frame 1e. It can be rolled around a rolling shaft 1g. The motive power in the Mision case 1a is transferred from the rear side to the left and right rear wheel gear cases 1h, 1h and the rear wheel transmission shafts 1i, 1i.
The rear wheels 3, 3 are driven to rotate. In addition, power input to the mission case 1a is performed by the frames 1d, 1
d from the engine E supported on the first belt transmission device B1
Is transmitted to a hydraulic pump P fixedly mounted on the mission case 1a, and from there, continuously variable speed type second belt transmission B2 is applied to the input shaft of the mission case 1a so that high speed and low speed can be continuously changed. Being transmitted. In addition, the alternator G attached to the engine E is connected to the second output shaft of the engine E from the third output shaft.
The electricity transmitted by the belt transmission device B3 and generated there is connected so as to drive the motor M of the blower F1 of the fertilizer-conveying compressed air generator of the fertilizer application device F that applies fertilizer laterally to the planted seedlings. To be done. L1 and L1 are link bases of the elevating link L, and 4 fixed to the upper surface of the lateral frame 1e is a step floor, which is horizontal from the upper side of the front wheels 2, 2 to the rear wheel 3, 3 side. The left and right floor parts 4a, 4a, the central floor part 4b connecting the left and right floor parts 4a, 4a below the front side of the seat 5, and the left and right floor parts 4a, 4a located behind the seat 5 and above the rear wheels 3, 3 And a rear floor portion 4c that continuously rises from the floor, and each floor portion 4a,
4a, 4b and 4c are integrally molded of synthetic resin. Further, the floor portions 4a, 4a, 4b, 4c are provided so that the floor surfaces thereof are continuously attached, and
A rubber step mat MT is laid on the left and right floor portions 4a, 4a and the rear floor portion 4c when the floor is mounted. It should be noted that the left and right floor portions 4a, 4a are provided with penetrating portions 4a ', 4a' on the left and right inner sides above the front wheels 2, 2 for confirming the left-right direction of the front wheels 2, 2.

On the upper side of the engine E, there is an engine cover portion 6 which is covered in a dome shape. Engagement members 6a, 6a fixed to the inside right and left of the cover portion 6 are attached to and detached from the front mounting shafts 6b, 6b. It is attached so as to be freely rotatable and rotatable about its axis. The front mounting shafts 6b and 6b are frame 1
It is fixed to the stations 6c and 6c whose lower ends are fixed to d and 1d. Further, on the upper side of the engine cover portion 6, there is provided a fuel supply hole 6d through which the cap T2 of the fuel supply port T1 of the fuel tank T supported on the upper side of the engine E projects. The edge portion of the fuel supply hole 6d has a shape that is inclined and projected upward. When the engine cover portion 6 is mounted, the overflow fuel receiving tray T fitted inside the rim portion of the fuel supply hole 6d at the base side of the fuel supply opening T.
The upper end of the outer edge portion T3-1 of No. 3 is pressed against the inner surface of the mouth edge portion so as to be in close contact therewith. The overflow fuel receiving tray T3 is made of soft synthetic resin and has a donut-shaped receiving tray portion T3-2 in plan view, and a fuel discharge hole portion T3-on one outer side portion thereof.
3 is molded, and one end of a fuel discharge tube T4 for guiding and dropping the fuel downward is fitted into the fuel discharge hole portion T3-3. The fuel tank T is attached to the fuel tank support frame 6d. The support frame 6d has its front single-frame portion 6d 'clamped and fixed to a member connecting the upper ends of the above-mentioned stations 6c, 6c, and is divided into two parts from the front single-frame portion. Two side frame portions 6d "and 6d" are link bases L1 and L
It is attached by being fastened and fixed to a bracket fixed to the No. 1 unit. Further, the fuel tank T is formed of synthetic resin, and one side is provided with a pin hole T6 and the other side is provided with a cutout hole T7 on the left and right of the edge portion T5 of the mating portion, and the rear side 2
The fuel tank T is attached by engaging fixed pins 6e and 6f with the frame portions 6d "and 6d". The pin 6e to be engaged with the side of the cutout hole T7 only has to be engaged because the head has a seat. The pin 6f engaged with the pin hole T6 side is a pin having no seat on the pin head, and is fixed by the clip 6g. Therefore, the assembly is simple, the number of parts is small, and it is economical. Further, in the assembled state, the edge portion T5 of the fuel tank T has two rear frame portions 6d "and 6d".
The sponge rubber 6h attached to the ... Is elastically supported and attached on the sponge rubber 6h.

The central floor portion 4b is removably attached without removing other floor portions. By removing the central floor portion 4b, repair / adjustment of a power transmission device located below the central floor portion 4b and a mission case are performed. -Various maintenance such as adjustment of various operating connecting tools connected to the hydraulic pump 1a and the hydraulic pump P can be performed. In this way, the main part of the maintenance is concentrated on the front side of the seat 5 in the lower left and right center, and the floor part that needs to be removed at the time of maintenance is made as small as possible, and the operator puts seedlings on the planting work machine P. From the standpoint that the left and right floors, which frequently move when replenishing, etc., are integrated, rattling and steps are less likely to occur, and the safety of movement is improved, the central floor 4
b and the left and right floor parts 4a, 4a are divided, each floor part is integrally molded, and the central floor part 4b can be attached and detached without removing the other floor parts at the time of maintenance. Further, since the central floor portion 4b is divided into small parts, it is easy to remove and handle it, and in particular, when the maintenance is required in the paddy field, the space where the removed step floor is placed is placed. There is nothing to worry about.

Further, each floor portion 4a, 4a, 4b, 4c
The first and second floors 4a, 4a, and the rear floor 4c are removed in this order after first removing the central floor 4b. As described above, the engine cover portion 6 can be removed after the central floor portion 4b is removed. Also, the central floor 4
With b removed, the engine cover portion 6 can be rotated forward around the front mounting shafts 6 ', 6', whereby the upper portion of the engine E can be opened and the engine E can be opened.
It can be easily maintained.

When removing the central floor portion 4b, the front wheel diff lock pedal DL1 and the mounting tool C described later are removed,
The ridge 4b 'formed on the central floor 4b is gripped by the hand and slid forward to slide the engine cover.
The rear end portion of the central floor portion 4b that has entered the lower side of the lower end portion of the portion 6 is pulled out to the outside, and then the central floor portion 4b is removed while pulling up the rear end portion side.
The front wheel diff lock pedal DL1 is a mission case 1a.
Since it is only engaged with the axial hollow portion provided on the upper end portion of the lower rod DL3 attached to the arm portion of the diff lock shifter DL2 provided on the rear side portion, it is only necessary to pull it upward. .. The lower rod DL3 connects the front side mounting shafts 6b, 6b of the engine cover portion 6 to the frames 1d, 1d.
Support member 6c 'fixed to the stations 6c and 6c supported from
It is supported so that it can slide up and down. 4b "-1 is a hole through which the rod portion of the diff lock pedal DL1 passes.
Is a long hole through which the lever for planting changeover LP of the planting work machine P passes.

Further, each floor portion 4a, 4a, 4b, 4c
When mounted on the traveling vehicle body 1, the floor portion is fixed to the vehicle body side by the fixtures C .... That is, the fixtures C ... are integrally molded of synthetic resin, and are fixed to the traveling vehicle body 1 side by being fitted into the floor mounting engagement portions C ′ ... The floor portion is mounted by engaging with the fixing station-1j. When the fixture C is fitted into the floor mounting engagement portion C ′ and engaged with the floor fixing stick-1j, the rotating shaft portions C1 and C1 of the fixture C are attached to the floor mounting engagement portion C ′. While engaging with the rotary bearing groove portions C′1, C′1,
The attachment / detachment arm portion C2 of the fixture C is fitted so as to engage with the attachment / detachment arm receiving groove portion C′2 of the floor mounting engagement portion C ′. At this time, the floor mounting hook portion C3 of the hook-shaped fixture C is caused to enter the lower side through the hook hole C′3 of the floor mounting engaging portion C ′. Then, the attachment / detachment arm portion C2 of the fixture C is rotated around the rotation shaft portions C1 and C1 so as to be inserted into the arm receiving groove portion C′2,
The floor mounting hook C3 of the fixture C has a hook hole C '.
3 enters the engaged state while elastically deforming to the floor-fixing station-1j ... On the contrary, when detaching, the attachment / detachment arm portion C2 of the fixture C is rotated to the rotation shaft portions C1, C.
It can be easily removed by rotating the arm receiving groove C'2 around the arm so that the arm receiving groove C'2 can be pulled out. As described above, this floor attachment / detachment structure is attached to the fixture C itself.
By integrally forming the rotating shaft for rotating the attachment at the time of attachment / detachment, the number of constituent members is small and economical, and the attachment / detachment operation is easy.

The seat 5 is located above the engine cover portion 6,
It is mounted so that it can be slid back and forth. Two fixing rails 5a, 5 are provided on the upper surface of the engine cover portion 6 in the front and rear.
a is fixedly installed, and two slide rails 5b, 5b connected to the seat 5 side are slidably engaged with the upper side thereof. The slide rails 5b and 5b are connected to each other by a seat rotation support member 5c on the front side, and fixed to the rotation support portions 5c 'and 5c' on the left and right sides of the support member below the seat 5. The brackets 5d and 5d are rotatably connected by a connecting pin. Further, on the rear side, a U-shaped connecting member 5f is fixed together by a fixture of the cushion rubbers 5e, 5e elastically supporting the rear side of the seat to the slide rails 5b, 5b. As a result, the rails 5a, 5a, 5b, 5b are reinforced against twisting, and it is possible to prevent the slides from becoming difficult to slide. The U-shaped connecting member 5f also serves as a handle for rotating the engine cover portion 6 forward around the front mounting shafts 6 ', 6'. In addition, seat slide lever-5
g is rotatably attached to a side portion of the slide rail 5b, and a slide fixing pin 5h connected to a tip portion of the lever is a fixing rail inside the slide rail 5b by a lever operation. 5a has a plurality of pin holes 5 at predetermined intervals on the outer side thereof.
It is designed to engage and disengage from a '... The lever 5g is provided with a coil spring that urges the slide fixing pin 5h in a direction to engage with the pin hole 5a '.

Reference numeral 8 denotes a steering wheel, which is provided on the front side of the seat 5 and on the upper side of the post cover 7. 9 is a main shift lever
Is arranged on the left side of the steering wheel 8, and from the front side of the steering wheel 8, the reverse, PTO (drives the planting work machine P in the traveling stopped state), planting work speed, neutral, and road speed shift positions It is provided. Reference numeral 10 denotes an auxiliary shift lever, which is disposed on the right side of the handle 8 and is a continuously variable second belt transmission device B2.
The lever is a low speed, high speed, and low speed stepless gear shifter. The front side of the handle 8 is the low speed side and the opposite side is the high speed side, and the lever can be shifted to an arbitrary position during that time so that the speed can be adjusted steplessly.

An operation panel 11 is provided below the handle 8 and above the post cover 7. The operation panel 11 is provided with a guide display section for displaying various work states by turning on a lamp so that the operator sitting on the seat 5 can see the work state. 12 and 12 are spare seedling mounts,
The seedlings to be replenished are placed on the planting work machine P, and three stages of seedling frames 12a are provided on the left and right sides, respectively, of supporting frames fixed to the upper portions of the front wheel final cases 1c and 1c of the traveling vehicle body 1. -It is provided on the frames 12b, 12b so as to be rotatable around the vertical axis. Specifically, a rotary bearing 12c 'is integrally provided on a plate 12c fixed to the upper end of the support frame 12b, while the seedling frame support member 12a for supporting the seedling frame 12a from below is provided. , Are fixed to the lower end side of the seedling frame frame 12d, which horizontally supports the seedling frame 12a at predetermined intervals in the vertical direction, and the rotary shaft 1 is attached to one end side of the rotary frame 12e fixed to the lower end side.
2e 'is fixed with its axis facing downward. The rotary shaft 12e 'is rotatably fitted in the rotary bearing portion 12c'. Also, on the base side of the support frame 12b,
A pedal 12f is attached rotatably up and down so as to be slightly above the floor surface of the step floor 4.
A rotation lock rod 12g is pivotally attached to the pedal 12f, and the tip end of the rod 12g is slidably fitted in a rod hole provided in the plate 12c. Pedal 12
A spring 12h is attached to f to urge the rod 12g in the upward direction. On the other hand, the rotating frame 12
A disc-shaped rotation lock plate 12i is fixed to e so as to be coaxial with the axis of the rotation shaft 12e '.
The rotation lock plate 12i is provided with lock holes 12i '... at predetermined positions, and if the positions of the lock holes 12i' ... and the position of the rod 12g overlap each other, the lock hole 12i '.
The tip of the rod 12g can be engaged with i ', and the rotation of the rotation frame 12e can be locked. When the seedling frame 12a is to be rotated and locked at another position, if the operator depresses the pedal 12g with his / her foot, the rod 12g moves downward and the lock hole 12i ′ is engaged with the tip portion of the rod 12g. Since it comes off, the rotation lock of the rotation frame 12e can be released. At this time, since the operator can operate the pedals with his / her feet while sitting on the seat 5, the operator can easily perform quick seedling replenishment work with both hands free. In the rotation lock position, the position of the seedling frame rotates in the left and right lateral positions P1 of the handle 8 and the rear side from the position of P1 in plan view, and the left and right floor portions 4a and 4a near the seat 5. Above the position P2, and
It rotates from the position of P1 to the front and rotates 45 ° to the left and right.
It is designed to be rotationally locked so as to take a position P3 which is inclined to some extent. The seedling frame position is set to P1 from the front-rear balance of the machine and habitability on the floor during running with planting, and when the machine is stored, the seedling frame position is set to P2 to narrow the machine width, and the seedlings of the preliminary seedling stand 12, 12 are placed. When the planting work machine P is supplied, the seedling frame position is set to P3 so that the operator in the seat 5 can easily take out the seedlings from the seedling frame 12a. Reference numeral 12j is a seedling collecting plate storage frame for storing a seedling collecting plate for scooping seedlings from the seedling box. Since it is attached to the rotating seedling frame frame 12d side, the seedling frame 12a on which the seedlings are placed and the seedling take-up plate do not separate from each other even if the seedling frame is rotated, which makes it easy to work.

Numerals 13 and 13 are line-matching markers, which are positioned above the seedlings with adjacent plants,
The distance between the plant and the seedling being planted is set to a predetermined interval. Marker stations 13a and 13a are horizontally extended and attached to the left and right sides of the front part of the machine body so as to be rotatable back and forth about a vertical axis (the vertical positions on the tip end side of the marker stations 13a and 13a are It is provided so as to be positioned higher than the upper end positions of the front wheels 2 and 2), and has a bendable marker bar 13 at its outer end.
b, 13b facing downward, and the marker bar 13
spherical marker bodies 13c and 13c at the lower ends of b and 13b
It is configured by fixing. Marker station 13a, 13
When the axial direction of a is set to a position (S1) that is directed in the left-right direction, it becomes possible to set the spacing between adjacent strips. And when not using this marker, the marker station 13a,
It is housed in a state (S2) in which the axial direction of 13a is turned so as to be directed rearward and is brought closer to the machine body. At this time, the marker rod 1
3b and 13b are located on the side of the turning axis position of the front wheels, and the vertical positions on the front end side of the marker stations 13a and 13a are higher than the upper end positions of the front wheels 2 and 2. Therefore, even if the direction of the front wheels 2, 2 changes during steering, the front wheels 2, 2 do not come into contact with each other, and the markers 13, 13 can be stored closer to the machine body. In addition, spare seedling mount 1
Since the support frames 12b and 12b of No. 2 and 12 are arranged rearwardly with respect to the seedling frame 12a at the seedling frame position P1 during the planting work traveling, the spacing between adjacent strips is set. Marker body 13 at a position (S1) that allows
When the operator sitting on the seat 5 looks at and confirms c and 13c, the marker bodies 13c and 13c are clearly below the seedling frame 12a in the lower stage without being obstructed by the support frames 12b and 12b. You can see it in a normal posture.

[0016]

The step floor is configured to be divided into a portion located above the power transmission device and a portion located above the front wheels and rear wheels, and a floor portion located above the power transmission device. Since it was detachably attached without removing other floor parts, repair / adjustment of the power transmission device located under the central floor portion 4b and mission case
It is possible to easily perform various maintenances such as adjustment of various operation connecting tools connected to the switch 1a and the hydraulic pump P. Further, since the central floor portion 4b is divided into small parts, it is easy to remove and handle the central floor portion 4b. Especially, when it becomes necessary to perform maintenance during the work in the paddy field,
There is no need to worry about the space where the removed step floor is placed.

[Brief description of drawings]

1 is a perspective view of a passenger rice transplanter

FIG. 2 is a plan view of a traveling vehicle body

FIG. 3 is a plan view of the traveling vehicle body with a part omitted.

FIG. 4 is a plan view showing a frame and transmission structure of a traveling vehicle body.

FIG. 5 is a plan view showing a division structure of a step floor.

FIG. 6 is a plan view showing a state in which a central floor portion is removed.

FIG. 7 shows a structure of a floor fixture, (a) is a side sectional view, and (b) is a plan view.

FIG. 8 is a partial side sectional view of a traveling vehicle body.

FIG. 9 is a perspective view showing a supporting structure of a fuel tank.

FIG. 10 is a partial side sectional view showing a mounted state of an engine cover portion and a fuel tank.

FIG. 11 is a plan view showing a configuration of a seat mounting portion on an upper portion of an engine cover portion.

FIG. 12 is a perspective view showing the structure of a preliminary seedling stand.

[Explanation of symbols]

 2, 2: Front wheel 3, 3: Rear wheel 4: Step floor 4a, 4a: Left and right floor section 4b: Central floor section 5: Seat

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsu Nomura, 1 Yakura, Tobe-cho, Iyo-gun, Ehime Pref., Technical Department, Iseki Agricultural Machinery Co., Ltd. In-house (72) Inventor Seike Rihaku 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture Izeki Agricultural Machinery Co., Ltd. Kamiya Hisashi, No. 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture, Technical Department, Iseki Agricultural Machinery Co., Ltd. (72) Hideyuki Kusmoto, No. 1 Yakura, Tobe-machi, Iyo-gun, Ehime Prefecture

Claims (1)

[Claims] 1. A riding rice transplanter in which a power transmission device is disposed in a central portion on the left and right in front of a seat, and a step floor is provided to cover an upper side of the power transmission device and left and right front wheels and upper sides of rear wheels. The floor is configured to be divided into a portion located above the power transmission device and a portion located above the front wheels and the rear wheels, and the floor portion located above the power transmission device has another floor portion removed. The step floor of a passenger rice transplanter, which is characterized in that it is detachably attached.