JPH1014341A - Sulky type rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the operativeness of petals while adopting a form for supporting a seedling receiving shelf by both hanging. SOLUTION: A preliminary placing base 6 obtained by equipping a strut 6A stood on a machine body with seedling receiving shelves 6B on plural vertical steps is installed at the front traverse side of an operating part B and the strut 6A is made into an inverted U shape in a side view in which a front strut part 6a and rear strut part 6B are connected at their tops. The seedling receiving shelves 6B are longitudinally fixed to the strut parts 6a and 6b and the front strut part 6a is positioned near the front outside of a machine body and connected to the machine body. The bottom of the rear strut part 6b is positioned higher than an operating step face and operations are completed. A petal 26 for operating the machine body is installed at the lower space of the rear strut part 6b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a riding type rice transplanter,
More specifically, the present invention relates to an arrangement in which a stand for spare seedlings, in which seedling receiving shelves are provided in a plurality of upper and lower stages on a column erected from an airframe, is arranged on the front side of the operating unit.

[0002]

2. Description of the Related Art In a conventional riding type rice transplanter of this type, a pair of front and rear struts are erected from the body on each of the right and left front portions of an operating unit, and the seedling receiving rack is attached to the front and rear struts. Was used to construct a stand for spare seedlings.

According to this conventional technique, the seedling receiving shelf is supported at both ends by a pair of front and rear columns, so that there is an advantage that the seedling receiving shelf can be stably and surely supported.

[0004]

However, according to the above-mentioned conventional technique, the rear support column of the pair of front and rear support columns erected from the fuselage is located near the foot of the driving section, and thus the rear support column is not used. The operation space of the airframe operation pedal arranged at the foot is pressed down, making the operation of the pedal inconvenient.

An object of the present invention is to improve the pedal operability while adopting a form in which a seedling receiving shelf is supported at both ends.

[0006]

The features, functions and effects of the first aspect of the present invention are as follows.

(Characteristics) A riding type rice transplanter in which reserve seedling nests each having a plurality of upper and lower seedling receiving shelves provided on an upright standing from an airframe are arranged on the front side of an operation section. The front-side support portion and the rear-side support portion are formed in an inverted U-shape when viewed from the lateral side where the upper end thereof is continuous, and the seedling receiving shelf is attached over the support portions before and after the front-side support portion. Is located near the front outer end of the fuselage and connected to the fuselage, the lower end of the rear strut is positioned higher than the operation step surface, and the operation is terminated. It has a pedal.

(Action) According to the first aspect of the present invention, since the seedling receiving shelf is attached to the front and rear support portions, the seedling receiving shelf can be supported at both ends.

In addition, in order to support the rear pillar portion,
Instead of erected from the fuselage on the rear side of the fuselage, the pillars are formed in an inverted U-shape and are continuous at the upper end of the frontal pillar part erected from the fuselage. , The lower end of the rear strut portion is positioned higher than the operation step surface, and the operation is terminated.A pedal for airframe operation is provided in a space below the rear strut portion. The part does not compress the foot of the driving unit.

(Effects) Therefore, according to the first aspect of the present invention, it is possible to stably and surely support the seedling receiving shelf, but also to improve the operability of the pedal arranged at the foot of the operating unit. Was.

According to the second aspect of the present invention, the features, functions,
The effects are as follows.

(Characteristics) In the first aspect of the present invention, an airframe constituting the airframe is composed of a pair of left and right main frames, a pair of left and right outer frames arranged side by side outside the main frame, a front portion of the main frame and an outer frame. It consists of a front horizontal frame that connects the front part, and a rear horizontal frame that connects the rear part of the main frame and the rear part of the outer frame. A plan view U surrounding the case from the front and both left and right sides
The front frame and the transmission case are supported by the front frame and the transmission case, and the pedal is pivotally supported by the main frame.
The point is that the front horizontal frame is configured to contact and support the pedal support arm at the return position.

(Function) According to the second aspect of the present invention, the body frame constituting the body is formed by the pair of left and right outer frames, the front horizontal frame, and the rear horizontal frame in the same manner as the pair of left and right main frames. For example, a case where a body frame is formed from a pair of left and right main frames, a front side frame and a rear side frame, or a case where a body frame is formed from a pair of right and left outer frames, a front side frame and a rear side frame The frame can be made stronger compared to. Since the mission case and the front frame are connected to such a sturdy main frame, the mission case and the front frame can be reliably and firmly supported.

[0014] Since the transmission case and the front frame, which are thus firmly supported, support the front column portion of the column in the spare seedling rest, the front column portion is securely supported. On the other hand, the transmission case and the front frame can be connected to each other by the front pillar portion to reinforce the transmission case and the front frame.

In addition, since the pedal is pivotally supported on the strong main frame, the mounting accuracy of the pedal can be improved.

In addition, paying attention to the fact that the front horizontal frame constituting the main frame is arranged near the pedal, that is, at the foot of the driving section, the front horizontal frame is used as a stopper and the front horizontal frame is used as a stopper. Since the support arm of each pedal is configured to contact and support at the return position, not only can the support arm at the return position of the support arm be firmly and securely supported, but also the stopper for supporting the front horizontal frame The members can be commonly used by sharing the same.

(Effects) Therefore, according to the second aspect of the present invention, the frame structure can be strengthened, the operability can be improved by improving the mounting accuracy of the pedal, and further, the structure by sharing the members can be achieved. In addition, the support of the spare seedling cradle can be supported by the fuselage only at the front pillar portion, but the support is firmly performed, and the spare seedling cradle can be made strong. It became so.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a riding type rice transplanter has a quadruple link mechanism 4 at the rear of a four-wheel drive riding traveling body 3 having a pair of left and right front wheels 1 and rear wheels 2. The seedling planting device 5 of the four-row planting specification is connected to be movable up and down through
There is provided a basic structure in which reserve seedling rests 6 are provided at the front left and right sides of each of the above, and a hydraulic cylinder 7 for moving the seedling planting apparatus 5 up and down is provided.

The body frame 11 of the riding vehicle 1
As shown in FIG. 4, FIG. 10 and FIG. 11, a pair of left and right main frames 12 which are long in front and rear are arranged in parallel with each other, and Outer frame 13 and a front horizontal frame 14 connecting a front portion of the main frame 12 and a front portion of the outer frame 13.
, A rear horizontal frame 15 for connecting the rear part of the main frame 12 and the rear part of the outer frame 13, and a connecting member 16 for connecting the rear parts of the main frames 12, and the whole is configured in a rectangular lattice shape.

Each of the left and right main frames 12 is a sheet metal pressed material formed in a square pipe shape as shown in FIGS. 6 and 11, and is raised rearward in a side view as shown in FIGS. And a substantially trapezoidal vertical frame portion 12 extending forward and backward from the vicinity of the front-rear center to the rear portion.
A is extended and extended in a series, and the left and right vertical frame portions 12A are connected by the connecting member 16. An axle case 19 that supports the rear wheel 2 is mounted via a bracket 20 below the rear portion.

The outer frame 13 is a sheet metal press material having a vertical cross section formed in a downward U-shape. As shown in FIGS. .

As shown in FIG. 11, the front horizontal frame 14 is a straight round pipe material,
Reference numeral 5 denotes a round pipe member whose center side is bent forward as shown in FIGS.

As shown in FIGS. 2 to 4 and FIG. 10, a transmission case 35 supporting the front wheel 1 is connected to the front of the body frame 11 in a state where the front ends of the left and right main frames 12 are connected to each other. A front frame 38 formed in a U-shape in plan view so as to surround the transmission case 35 from the front and both left and right sides thereof is connected with both ends of the front horizontal frame 14 as connection portions. .
The front frame 38 is a sheet metal press structure having a vertical U-shaped cross section, and headlights 39 are mounted on the left and right sides of the front surface of the front side 38A.

The transmission case 35 and the front frame 3
8, a pair of left and right support members 40 having a tilted attitude to the ground are connected to each other, as shown in FIGS. 2, 4, and 5, over the front side portion 38A. 40
A mounting table 42 for the battery 41 is mounted. Note that a battery 41 is provided on the front of the front frame 38.
A guard member 43 located in front of is mounted.
The transmission case 35 and the axle case 20 are connected by a reinforcing frame 37 made of a pipe material so as to secure the strength of the entire body.

FIG. 3, FIG.
As shown in FIGS. 6 and 7, a resin body cover 21 that covers the entire body from above is detachably attached. The driving deck 21 is provided in the first half of the body cover 21.
The rear fender 21b and the seat support 21c are integrally formed in the rear half. A driver's seat 24 is provided on the upper part of the seat support 21 c via a support fitting 23.
Is rotatably mounted around the fulcrum X,
A rubber (or spring) cushion member 25 for receiving and supporting the driver's seat 24 is attached.

The body cover 21 is shown in FIGS.
0, as shown in FIG. 11, in the mounted state, the outer frame 13 is elastically mounted and supported via anti-vibration rubbers 26 provided on the front, rear, left and right of the outer frame 13.
2A is connected to the rear connecting member 16 for connecting the vibration isolating rubber 2.
7, and is elastically received and supported. Also, as shown in FIGS. 3, 4, 6, 7, and 9 to 11, the connecting pins 28a provided on the left and right rear portions are engaged from above with the locking fittings 29 provided on the right and left rear portions of the body frame 11. As a result, the hook 30 provided on the body frame 11 is positioned on the connecting pin 28a and the connecting pin 28b.
The vehicle body cover 21 can be elastically supported on the vehicle body frame 11 by engaging the respective a and 30b, while the entire driver seat 24 can be removed by removing the hooks 30a and 30b. It is configured.

At the outer ends of the left and right outer frames 13,
As shown in FIGS. 1, 3, 4, 6, 10, and 11, the getting-on / off steps 31 are respectively connected in a suspended manner. The reinforcement stay 3 is designed to reinforce the boarding step 31 itself and the entire body frame 11.
2 are respectively erected.

As shown in FIGS. 1 and 8, the spare seedling rest 6 is constructed by providing a plurality of upper and lower seedling receiving shelves 6B on a support 6A standing from the body.

The support 6A is shown in FIG. 1, FIG. 2, FIG.
As shown in FIG. 2, the front-side support portion 6a and the rear-side support portion 6b are formed in an inverted U-shape in a lateral side view that is continuous at their upper ends. It is attached over the support portions 6a and 6b. 4, 5, 10 and 12, the left and right supports 6A are connected to each other by connecting the lower ends of the front support portions 6a with horizontal rod portions 6c so as to be unified. Have been.

The left and right columns 6A have side brackets Sb for attachment to the front frame 38 at the lower end of the front column portion 6a, and the transmission case 35 is provided at the left and right center of the horizontal rod 6c. Has a center bracket Cb for mounting. That is, the left and right columns 6A are
It is attached to the front frame 38 at the front column portion 6a, and attached to the transmission case 35 at the horizontal rod portion 6c. The horizontal rod 6c is provided with a hook 44 used for towing or rope hanging.

The center bracket Cb is provided with a bracket portion b for bolting the rear end of the support member 40. That is, the support member 40 is connected to the transmission case 35 via the center bracket Cb.

The rear column portion 6b of the column 6A
Is finished with its lower end positioned higher than the operation step surface SF formed from the upper surface of the body cover 21. In the space below the rear pillar portion 6b, a body operation pedal 26 is provided. Has been deployed.

As shown in FIG. 2, a steering gear case 50 is connected to an upper portion of the transmission case 35, and an air-cooled engine 36 is mounted on the upper portion of the steering gear case 50.

As shown in FIG. 2, a steering handle 51 is attached to the steering gear case 50, and a pitman arm 52 pivotally supported at the lower portion of the transmission case 35 swings left and right by rotating the steering handle 51. The left and right front wheels 1 are steered by a dynamic operation.

An instrument panel 54 is provided at the rear of the engine 36 with the handle post 53 as a support, and a fuel tank 55 is installed above the engine 36 so as to partially overlap the engine 36.

As shown in FIGS. 2 and 8, a bonnet 56 for covering the engine 36 is disposed in front of the instrument panel 54, and between the engine 36 and the front frame 38 as shown in FIG. As described above, boarding step 2 for closing the gap A from above and forming a floor of a boarding passage R for performing a walking movement between the front of the fuselage and the driving section B.
8 are arranged.

As shown in FIG. 8, the boarding step 28 is extended from the lower end of the bonnet 56 so as to be extended and integrated with the bonnet 56. It is configured to be removable. A decorative cover portion 29 that covers the front frame 38 is provided continuously around the periphery of the boarding step 28.

As shown in FIGS. 2, 4 and 5, the engine 36 has an output shaft 36a mounted horizontally in a horizontal direction, and one end of the output shaft 36a and a transmission case 35.
Is a double-tension type sub-transmission that performs high-low two-stage gear shifting by selectively engaging two sets of belt transmission mechanisms having different transmission ratios provided with tension clutches with the input shaft 35a. It is interlocked and connected via 57. The auxiliary transmission 57 also functions as a main clutch that cuts off transmission to the transmission case 35 by setting both sets of belt transmission mechanisms to the clutch disengaged state. A hydraulic pump 58 connected to the other end of the output shaft 36a is mounted on the right side of the engine 36.

The engine power input to the transmission case 35 via the sub-transmission 57 is appropriately shifted by a gear-type main transmission (not shown) that shifts forward two steps and reverse one step, and the left and right front wheels 1 are shifted. Is transmitted to
, The rear axle case 2 via the transmission shaft 59
0 is transmitted. As shown in FIG. 3, a part of the power input to the transmission case 35 and subjected to the main transmission is appropriately shifted by a stock transmission (not shown) provided in the transmission case 35, and then transmitted to the transmission shaft. The seedlings are transmitted to the seedling planting device 5 through 60.

The power input to the axle case 19 is, as shown in FIG.
a and 61b are transmitted to the left and right rear wheels 2.

As shown in FIGS. 2 to 4 and FIG. 8, the pedal 26 is pivotally supported by the body frame 11 so as to be disposed at the foot of the driving section B, that is, at the left foot of the lower space. A main clutch pedal 26A, and a pair of left and right side brake pedals 26B and 26C pivotally supported by the body frame 11 so as to be arranged side by side on the right foot portion,
The main clutch pedal 26A is used to disengage the sub-transmission 57, that is, the main clutch, by being depressed, and the side brake pedals 26B and 26C are operated.
Can be depressed separately and simultaneously. When each depressing operation is performed, the corresponding side clutch / brake 61a, 61b is operated to be disengaged and braked. The clutch and brakes 61a and 61b are both turned off and braked.

Then, as shown in FIG. 13, the front horizontal frame 14 of the body frame 11 is
It is a stopper for supporting and supporting the support arms 26a of A, 26B, 26C at the return position against the return biasing force of the return spring S.

The seedling planting apparatus 5 comprises a seedling stand 8 on which seedlings are placed and reciprocated laterally at a constant stroke, a four-row planting mechanism 9 for planting two plants by one rotation, and a leveling of the planted rice field. And is connected to the quadruple link mechanism 4 so as to freely roll around the axis P in the front-rear direction.

The hydraulic cylinder 7 raises and raises the seedling planting device 5 by shortening drive, and lowers the seedling planting device 5 by its own weight by extension operation.

A muffler 45 is disposed at a lower front portion of the front frame 38 so that the exhaust port 45a is directed laterally outward.

[Alternative Embodiment] In the above embodiment, the spare seedling rest 6 is arranged on both front sides of the operation part B, but the present invention is not limited to the above. The present invention can also be applied to a riding type rice transplanter that is arranged only on one side.

[Brief description of the drawings]

FIG. 1 is an overall side view of a riding rice transplanter.

FIG. 2 is a front side view of the riding type rice transplanter with a bonnet removed.

FIG. 3 is a rear side view of the riding type rice transplanter with its body cover removed.

FIG. 4 is a plan view of the riding type rice transplanter with its hood and body cover removed.

FIG. 5 is a front view of the riding type rice transplanter with its bonnet removed.

FIG. 6 is a vertical front view of the rear part of the riding type rice transplanter.

FIG. 7 is a perspective view of an airframe cover.

FIG. 8 is a perspective view of the front of a riding type rice transplanter.

FIG. 9 is a longitudinal sectional side view of the rear part of the riding type rice transplanter.

FIG. 10 is a plan view showing a frame configuration.

FIG. 11 is a perspective view showing an airframe.

FIG. 12 is an exploded perspective view of a front frame and a support.

FIG. 13 is a side view of a pedal mounting portion.

[Explanation of symbols]

 6A Support 6B Seedling receiving shelf 6 Spare seedling holder 6a Front support 6b Rear support 11 Body frame 12 Main frame 13 Outer frame 14 Front horizontal frame 15 Rear horizontal frame 26 Pedal 26a Support arm 35 Mission case 38 Front Frame B Operation part SF Operation step surface

Claims (2)

[Claims] 1. A riding type rice transplanter in which spare seedling nests provided with seedling receiving shelves provided in a plurality of upper and lower stages on a pillar erected from an airframe are arranged on a front lateral side of an operation unit, The front strut portion and the rear strut portion are formed in an inverted U shape in a lateral side view that is continuous at the upper end thereof, and the seedling receiving shelf is attached over the front and rear strut portions, and the front strut portion is It is located near the front outer end of the fuselage and connected to the fuselage, the lower end of the rear strut portion is positioned higher than the operation step surface, and the operation is completed.The pedal for operating the fuselage is located in the space below the rear strut portion. Riding rice transplanter equipped with. 2. A vehicle body frame comprising a pair of left and right main frames, a pair of left and right outer frames arranged in parallel laterally outside thereof, and a front portion of the main frame and a front portion of the outer frame connected to each other. And a rear horizontal frame that connects the rear part of the main frame and the rear part of the outer frame. A transmission case is connected to the front of the body frame, and the transmission case is connected to the front and left and right sides. Connect the U-shaped front frame that surrounds from
The front support portion of the support in the spare seedling rest is supported by a front frame and a transmission case, the pedal is pivotally supported by the main frame, and the support arm of the pedal is brought into contact with the front horizontal frame at the return position. The riding type rice transplanter according to claim 1, wherein the rice transplanter is configured to be supported.