JP2007215520A - Riding type rice transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a riding type rice transplanter in which operators can stably be moved to the rear without making step width too wide when supplying seedlings to a seedling-placing table. <P>SOLUTION: In the riding type rice transplanter, a seedling planting apparatus 4 is provided in the rear of a traveling machine body 3 and an auxiliary step 35 is provided in extended state on the lateral outer side of an operation step 16 in the traveling machine body 3 and a ladder 40 higher by one step than the auxiliary step 35 is installed in the rear and a supporting member 36a arranged in a standing condition above a position which is upper than the rear end of the auxiliary step 35 is installed so as to overlap to the ladder 40 when viewed in a plane and the ladder 40 is supported from the lower position. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a riding type rice transplanter in which a seedling planting device is connected to a rear portion of a traveling machine body so as to be movable up and down.

  For example, in a riding type rice transplanter connected with a four-row planting seedling planting device, the lateral width of the operation step of the traveling machine body is slightly smaller than the lateral width of the seedling mount provided in the seedling planting device. It is possible to replenish seedlings to the outermost strip of the seedling stand by standing at the lateral end of the seedling, but when it is configured to connect this traveling aircraft with seedling planting device of 5 or 6 plants Even when standing at the side edge of the driving step, it may be difficult to reach the outermost strip. Therefore, conventionally, for example, as disclosed in Patent Document 1, an auxiliary step is extended and arranged on the lateral side of the operation step. The rear step portion of the auxiliary step is formed on an inclined surface with the rear at the top, and the upper rear end includes a peripheral frame extending by bending the outer peripheral frame of the auxiliary step inward.

Japanese Patent Laid-Open No. 11-89336

  Conventionally, seedlings are replenished by placing a foot on the inclined step portion and the peripheral frame at the rear of the auxiliary step, but it is difficult to place the foot on it, and there is room for improvement.

  The present invention has been made paying attention to such a point, and when replenishing seedlings to the seedling stage, the operator can move more stably to the rear, and further to the seedling stage. The main purpose is to make it easier to replenish seedlings.

The first invention is a riding type rice transplanter in which a seedling planting device is connected to a rear part of a traveling machine body so as to be movable up and down, and an auxiliary step is extended and deployed laterally outside a driving step in the traveling machine body.
A step that is one step higher than the auxiliary step is provided behind the auxiliary step, and a support member that is erected upward and rearward from the rear end of the auxiliary step is inserted under the step to overlap the step in plan view. The platform is supported by the support member from below the platform.

According to the above configuration, by placing a foot on a stepped foot provided behind the auxiliary step extended and deployed on the lateral outside of the driving step of the traveling body, it is possible to place the foot on the stepped foot more stably than before. The seedling can be replenished easily by extending the length. Accordingly, it is possible to cope with a rice transplanter equipped with a larger seedling planting device of 6 to 8 type without expanding the width of the auxiliary step compared with the conventional one or not much.
And since the said step stand supports the lower part of the step by setting up a support member from the extended auxiliary step side, the auxiliary step and the step are integrated, and the integrated auxiliary step and the step are used as a unit. Since it can be provided on the traveling machine body by being mounted on, it can be mounted easily and inexpensively.

  Therefore, according to the first invention, the seedling can be easily supplied. In addition, even for a riding type rice transplanter equipped with a seedling planting device with a larger number of planting lines than before, it is possible to replenish seedlings even if the left and right width of the traveling machine body is not widened or not much widened, and easy and It has a structure that can be implemented at low cost, and can be equipped with an auxiliary step and a step that is one step higher than the auxiliary step.

According to a second invention, in the first invention,
Apart from the support member, the front part of the upper step is supported by a reinforcing member erected from the rear end part of the lower auxiliary step.

  According to the above configuration, the step platform is firmly fixed by the support member and the reinforcing member.

According to a third invention, in the first or second invention,
The reinforcing member is formed in a concave shape rearward in a side view, and the concave portion enters a lower part of the platform in a plan view.

  According to the above configuration, when replenishing seedlings with one foot on the footrest with one foot left on the auxiliary step, put the toe of the foot left on the auxiliary step into the concave part on the back and slightly By sinking under the step, the body can be moved backward in a stable state, and workability can be further improved.

According to a fourth invention, in the first invention,
The supporting member supports a step by extending a peripheral frame supporting the auxiliary step backward and upward.

  According to the above configuration, the peripheral frame for supporting the auxiliary step can be shared as the supporting member for the step by simply extending the peripheral frame for supporting the auxiliary step rearward and upward, and a dedicated support member for supporting the step becomes unnecessary. Thus, the structure is simple and can be produced at low cost, and a strong support structure can be obtained.

A fifth invention is the fourth invention, wherein:
A boarding step is attached to the perimeter frame.

  As a result, it was possible to easily provide a step and a boarding / alighting step simply by attaching the auxiliary step to the traveling body.

  FIG. 1 is an overall side view of a riding type rice transplanter according to the present invention, and FIG. 2 is an overall plan view thereof. This riding type rice transplanter is configured in a six-row planting specification at the rear of a four-wheel drive type traveling machine body 3 having a pair of left and right front wheels 1 that can be steered and a pair of left and right rear wheels 2 that cannot be steered. The seedling planting device 4 is provided with a basic structure that is connected to be movable up and down via a link mechanism 6 having a four-link structure driven by a hydraulic cylinder 5, and a fertilizer 7 is provided at the rear part of the traveling machine body 3. In addition, it has a structure in which preliminary seedling platforms 8 are installed upright on the front left and right of the traveling machine body 3.

  The traveling body 3 is provided with a mission case 9 that pivotally supports the front wheel 1, and the rear wheel 2 is pivotally supported at the rear end of a swing case 10 that is connected to the rear left and right of the mission case 9 so as to swing up and down. ing. A front frame 11 extending forward from the mission case 9 is equipped with a prime mover 13 in which an engine (not shown) is accommodated in a bonnet 12 so that the engine power is transmitted to the transmission case 9 as a belt. A steering handle 14 for steering the front wheels is provided above the rear part of the driving part 13, and a driver seat 15 is provided at the rear part of the traveling machine body 3. A driving step 16 is provided at the foot between the driving unit 13 and the driver seat 15, and a fender portion 17 that is raised upward on the left and right sides of the driver seat 15 is provided.

  The seedling planting device 4 mounts six seedlings in parallel and cuts seedlings one by one from the lower end of the seedling stage 21 which is reciprocated left and right by a set stroke, and plantes them on the field. 6 sets of rotary planting mechanisms 22 and 3 ground leveling floats 23 arranged in parallel on the left and right sides to level the planting area. The work taken out from the rear of the mission case 9 Power for use is transmitted to the seedling planting device 4 via the telescopic transmission shaft 24.

  The fertilizer application device 7 is mounted on the traveling machine 3 between the driver's seat 15 and the seedling planting device 4, and a fertilizer hopper 25 for storing powdered fertilizer and a set amount of fertilizer in the fertilizer hopper 25 are set. An unwinding mechanism 26 for unwinding and an electric blower 29 for wind-feeding the unloaded fertilizer to a groove forming device 28 provided on the leveling float 23 via a supply hose 27 are provided.

  The operation step 16 is formed by pressing a metal plate material. A front end portion of the operation step 16 extends to the left and right of the driving portion 13, and a rear portion of the operation step 16 is connected to a fender portion 17.

  On both the left and right sides of the driving step 16, an auxiliary step 35 that is elongated in the front and rear direction is provided above the front wheel 1 so that the feet of the driving unit are extended to the left and right. The auxiliary step 35 is resin-molded into a slat-like shape, and the planar shape of the front half of the auxiliary step 35 is formed in a tapered shape in which the outer side is inclined toward the inside of the machine body. The front wheel 1 can be seen through.

  As shown in FIGS. 3 and 4, the auxiliary step 35 is disposed inside a peripheral frame 36 made of a round pipe material, and is screwed to a support frame 37 and a support bracket 38 provided on the peripheral frame 36. The peripheral frame 36 is connected and supported to members on the traveling machine body 3 side (not shown) via support frames 30, 30 a, 31 and 31 a connected to the support frame 37.

  As shown in FIG. 3, the rear portion (support member 36a) of the circumferential frame 36 extends rearward and upward from the auxiliary step 35, and the extending end side of the circumferential frame 36 is bent horizontally in the left-right direction. A step 40 having a sheet metal press structure is connected and supported one level higher. The step platform 40 is used when replenishing seedlings to the seedling platform 21, and the driver stands on the rear part of the auxiliary step 35 and the platform 40, so that the end of the seedling platform 21 is also handed. Is ready to reach.

  The step 40 is reinforced from the support member 36 a extending the peripheral frame 36 rearward and the support frame 37 at the rear end of the auxiliary step 35 provided in the peripheral frame 36 and connected to the front side of the step 40. The member 44 is firmly supported. The support member 36a is disposed below the step 40 so as to overlap the step 40 in plan view, and the step 40 is supported from below the step 40 by the support member 36a.

  The three reinforcing members 44 are juxtaposed in the left-right direction, and as shown in FIG. 7 in a side view, the reinforcing member 44 is formed in a concave shape in the shape of a back and the concave portion is formed in the plan view in a plan view. When the one foot is placed on the footrest 40 with the one foot left in the auxiliary step 35 and the seedling is replenished, the toe of the foot left in the auxiliary step 35 is recessed backward. By putting one foot under the footrest 40, the body can be moved more backward in a stable state, and the work is facilitated.

  A step 42 for getting on and off is provided at the lower end of the U-shaped support rod 41 extending downward from the peripheral frame 36. An auxiliary support rod 43 is provided inside the boarding step 42 in the left-right direction of the body to reinforce the boarding step 42. As shown in FIGS. 5 and 6, the lower part of the auxiliary support rod 43 is bulged inside the body as shown in FIGS. 5 and 6 so that the toes can enter and avoid interference with the front wheel 1 to be steered. It arrange | positions so that it may become a back position toward the side.

  As shown in FIGS. 5, 6, and 7, a fuel tank 53 is provided below the right auxiliary step 35 and behind the auxiliary support rod 43. The outer shape of the fuel tank 53 on the step 42 for getting on and off is partially recessed in order to avoid interference with the auxiliary support rod 43. The fuel inlet 53 of the fuel tank 53 extends from the lateral side surface of the upper part of the fuel tank 53 obliquely outward and upward to the rear and extends 45 degrees rearward and upward in a side view. In a state where the cap 55 is tightened to the oil filler port 54, the upper edge of the cap 55 is positioned slightly below the upper surface of the auxiliary step 35 and the laterally outer peripheral frame 36, and is stepped on by the passenger's feet. There is no way. The lower end edge of the opening portion of the oil filling port 54 is provided so as to extend upward to a position higher than the upper surface of the fuel tank 54, thereby preventing the fuel filling port 54 from overflowing even when the fuel is full. .

  As shown in FIGS. 1 and 2, the preliminary seedling stage 8 is attached to the tip of a support arm 45 extending laterally outward from the front frame 11, and a seedling support plate is provided above the support 46. 47 has a structure in which it is mounted in three upper and lower stages.

  As shown in FIGS. 8 and 9, a net-like pocket 61 is provided on the back surface of the backrest portion 60 of the driver seat 15 so that notebooks and instruction manuals can be placed therein.

As shown in FIG. 8, the seat support frame 62 is fixed to the body frame, and the attachment pieces 64 on the lower surface of the driver seat 15 are attached to the front ends of the pair of left and right arms 63 formed on the seat support frame 62. The driver seat 15 is maintained in the seated posture by receiving the lower surface of the driver seat 15 on the upper surface of the vibration isolating rubber 66 provided on the upper surface of the seat support frame 62. Further, the upper surface of the seat support frame 62 is exposed by swinging in the direction of lifting the rear portion of the driver seat 15 around the support shaft 65. An opening 67 is formed in the seat support frame 62. Controller mounting brackets 68 and 69 are provided on the flange portion 63a of the arm 63 on the left side of the seat support frame 62 and the flange portion 62a provided around the opening 67, and various types of float sensors and the like are provided via bolts 70 and 71 thereto. A controller 72 is attached for output based on the detection of the sensor and for controlling the lifting control and the like.
The upper surface 73 of the controller 72 is inclined so as to be higher on the front side so that water can be drained even if water drops such as rain adhere.

[Other Embodiments]
In the above-described embodiment, the peripheral frame 36 of the auxiliary step 35 is extended and the extended portion is used as the support member 36a that supports the step platform 40. However, the support member 36a is different from the peripheral frame 36 in the auxiliary step 35. A member erected from the rear end side may be used.

Overall side view of riding rice transplanter Overall plan view of the riding rice transplanter Exploded plan view of auxiliary step mounting structure Front view showing the mounting structure of the front part of the auxiliary step in the 6-row planting specification Front view showing the step for getting on and off the right auxiliary step and the fuel tank Plan view showing the step for getting on and off and the fuel tank below the auxiliary step on the right side Side view showing the step for getting on and off the right auxiliary step and the fuel tank Partially broken side view showing the driver's seat and its lower structure Front view showing pockets on the back of the backrest of the driver's seat

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Traveling machine body 4 Seedling planting device 16 Operation step 35 Auxiliary step 36 Peripheral frame 36a Support member 40 Step board 42 Step for getting on / off 44 Reinforcing member

Claims (5)

In the riding type rice transplanter, which is connected to the rear part of the traveling machine body so that the seedling planting device can freely move up and down, and the auxiliary step is extended and deployed on the lateral side of the driving step in the traveling machine body,
A step that is one step higher than the auxiliary step is provided behind the auxiliary step, and a support member that is erected upward and rearward from the rear end of the auxiliary step is inserted under the step to overlap the step in plan view. The riding type rice transplanter is arranged such that the step is supported by the support member from below the step. The riding type rice transplanter according to claim 1, wherein the front part of the upper step is supported by a reinforcing member erected from the rear end part of the lower auxiliary step. The riding type rice transplanter according to claim 1 or 2, wherein the reinforcing member is formed in a concave shape rearward in a side view, and the concave portion is allowed to enter the lower part of the platform in a plan view. The riding type rice transplanter according to claim 1, wherein the supporting member supports a step by extending a peripheral frame supporting the auxiliary step rearward and upward. The riding type rice transplanter according to claim 4, wherein a step for getting on and off is attached to the peripheral frame.

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