JP3418103B2 - Step structure of riding rice transplanter - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a step structure of a riding type rice transplanter.

[0002]

2. Description of the Related Art Conventionally, in a step structure of a riding type rice transplanter, as disclosed in, for example, Japanese Unexamined Patent Publication No. 9-28131, traveling is performed in order to enable a passenger to get in and out of a front portion of a traveling machine body. The steps for getting on and off were arranged on the left and right of the front part of the aircraft so as to fit within the tread width of the front wheels, and the rear fender was connected to the rear part of the traveling aircraft by expanding it wide enough to cover the upper part of the rear wheels. It was designed to form a replenishment step to facilitate the replenishment work for the seedling planting device. In addition, in the above-mentioned conventional technology, by forming the step for getting on and off to fit within the tread width of the front wheels, a rice transplanter is
When running on a walk board, which is used when loading and unloading a truck bed or when entering and exiting a field, the front wheel can be easily viewed even from the control unit so that the walk board can be run. It is possible to easily grasp the positional relationship between the front wheels and the rear wheels having the same tread width as that of the front wheels with respect to the road surface, thereby preventing the wheel from derailing from the road surface. .

[0003]

However, according to the above-mentioned prior art, the step for loading and unloading is formed so as to fit within the width of the tread of the front wheels, so that the preliminary seedling mounting table is provided at the lateral outer end of the step for loading and unloading. When equipped with, the traveling route is considerably narrowed, so that there has been an inconvenience in that it is difficult to get on and off from the front of the traveling machine while carrying heavy supplies such as seedlings. Therefore, it is conceivable to form the boarding / alighting step wide so as to protrude from the tread width of the front wheels, but in this case, the front wheels are covered with the boarding / alighting step and cannot be seen from the control section. The rear wheel is covered by a wide rear fender that has a step for replenishment, and it is hard to see from the control section.Therefore, when running on a walk board etc. The positional relationship of the wheels with respect to the traveling road surface such as a plate cannot be grasped from the control section, and there is a risk that the wheels will be derailed from the traveling road surface. Also, in recent years, with the increasing planting speed, seedling replenishment work for the seedling planting device has become more frequent, and since the number of seedling planting devices has been increased, the supply It is also conceivable to expand work steps to improve workability and cope with the increase in the number of seedling planting devices.

It is an object of the present invention to easily get in and out of a front portion of a traveling body while carrying a heavy supplement such as seedlings even when a preliminary seedling stand is provided at the lateral outer end of the step for getting on and off. Although it can be done, it is possible to prevent the wheel from derailing from the road surface such as a walk board, improve workability on steps, and increase the number of seedling planting devices. It is to provide a step structure of a riding-type rice transplanter that can be used.

[0005]

In order to achieve the above object, in the invention according to claim 1 of the present invention, substantially the front-rear length of the step is provided on both the left and right outer sides of the step equipped on the traveling body. connecting the long auxiliary steps that will be formed is over, the auxiliary step, perspective holes are formed plate
And a supporting frame for mounting and supporting the plate-shaped member.
The supporting frame and the outer frame of the auxiliary step.
The frame to be formed and that frame are connected to the machine frame.
And a connecting member for connecting.

[Operation] According to the first aspect of the present invention, the length of the steps provided on the traveling machine body is substantially the front-rear length, that is, the step for boarding / alighting the vehicle equipped with the traveling machine body in a continuous state in the front-rear direction. By connecting the auxiliary steps formed on the left and right outer sides of the step, which are approximately the length in the front-rear direction, which is the overall length of the step for supplying and the step for supplying, the step for boarding / alighting, the step for boarding, and the step for supplying Since each is in a wide expanded state, seedling replenishment from the preliminary seedling mounting table to the seedling planting device, and seedling replenishment for the strip parts on the left and right ends of the seedling planting device configured for multi-row planting, It becomes possible to easily perform replenishment work such as.
Also, even if a spare seedling stand is equipped at the lateral outer end of the widened step for getting in and out, that is, the front lateral outer end of the auxiliary step, traveling while carrying heavy supplements such as seedlings It will be easier to get on and off the aircraft from the front.

Further, since the auxiliary step is formed with a see-through hole, the front and rear wheels can be easily viewed from the control section while the boarding / alighting step and the replenishing step are expanded widely. As a result, for example, when the rice transplanter is run on a walk board that is used when loading and unloading a truck bed or when entering and leaving a field, the road surface such as a walk board is used. Since the positional relationship between the front wheels and the rear wheels with respect to the vehicle can be easily grasped, it is possible to prevent the inconvenience that the wheels are derailed from the traveling road surface.

[Effect] Therefore, even when the auxiliary seedling mount is provided at the lateral outer end of the step for getting on and off, it is possible to easily get on and off from the front part of the traveling machine while carrying a heavy supplement such as seedlings. However, it is possible to prevent inconvenience that the wheels derail from the road surface such as a walking board, improve workability on steps, and support multiple rows of seedling planting devices. It has become possible to provide a step structure of a riding type rice transplanter that can be used.

In the invention according to claim 2 of the present invention,
In the invention according to claim 1, the auxiliary step is a divided structure composed of a plurality of plate-shaped members arranged side by side in the front-rear direction, and some of the plurality of plate-shaped members have the same shape. Formed.

[Operation] According to the invention described in claim 2, since the auxiliary step has a divided structure composed of a plurality of plate-shaped members, it is possible to arrange small-sized and lightweight plate-shaped members in parallel. Will allow you to configure auxiliary steps. That is, the auxiliary step can be made advantageous in terms of manufacturing, as compared with the case where the auxiliary step is an integral structure having a length that extends substantially the front-rear length of the step of the traveling machine body.
Further, by forming a part of the plurality of plate-shaped members in the same shape, it is possible to suppress the cost required for manufacturing the plate-shaped member, and thus reduce the manufacturing cost required for the auxiliary step. Can be achieved.

[Effect] Therefore, it is possible to provide a step structure of a riding type rice transplanter capable of facilitating manufacturing and reducing manufacturing cost.

According to the invention of claim 3 of the present invention,
In the invention according to claim 1 or 2, the auxiliary step is formed so that both front and back sides can be used.

[Operation] According to the third aspect of the invention, since the left and right auxiliary steps connected to the left and right outer sides of the step mounted on the traveling machine body are symmetrical, the front and back sides can be used. By forming two auxiliary steps having the same shape, the left and right auxiliary steps can be manufactured. That is, since the auxiliary steps are not formed so that both the front and back sides can be used, it becomes possible to facilitate the manufacturing and reduce the manufacturing cost, as compared with the case where the left and right auxiliary steps are independently manufactured.

[Effect] Therefore, it is possible to provide a step structure of a riding type rice transplanter capable of further facilitating the manufacturing and reducing the manufacturing cost.

In the invention according to claim 4 of the present invention,
In the invention according to any one of claims 1 to 3, the auxiliary step is extended below a preliminary seedling mounting table equipped in a front portion of the traveling machine body, and the auxiliary frame is used to support the auxiliary seedling table. The columns of the spare seedling stand were erected.

[Operation] According to the invention as set forth in claim 4, the auxiliary step extends below the auxiliary seedling mounting table provided in the front part of the traveling machine body, so that the passenger can get on and off from the front part of the traveling machine body. At this time, since it is possible to step under the spare seedling mounting table, it becomes easier to get in and out of the front part of the traveling machine body. In addition, since the columns of the spare seedling stand are erected from the support frame of the auxiliary step with high strength, comparison is made, for example, when the columns of the spare seedling stand are erected from the step surface of the auxiliary step. As a result, the support strength of the preliminary seedling mounting table can be increased.

[Effect] Therefore, a step structure of a riding-type rice transplanter is provided, which can make it easier to get on and off from the front part of the traveling machine body and can improve the support strength of the preliminary seedling mounting table. I got it.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the entire side view of the riding type rice transplanter, and FIG.
Shows the entire plane of the riding type rice transplanter,
This rice transplanter comprises a riding type traveling body 1, a seedling planting device 3 for 6 row planting which is connected to the rear part of the traveling body 1 via a lifting link mechanism 2, and a 6 row planting mounted on the rear part of the traveling body 1. The fertilizer application device 4 and the like are used so that a maximum of six rows can be planted. The traveling machine body 1 includes a machine body frame 5, an engine 6 mounted on the front part, a belt type continuously variable transmission 7 and a gear type transmission device 8 arranged on the front part,
The engine 6 includes a pair of left and right front wheels 9, a pair of left and right rear wheels 10, a steering wheel 11, a driver's seat 12, and a step 13 extending in front of and behind the body.
Is transmitted to the front wheels 9, the rear wheels 10, the seedling planting device 3, and the fertilizer application device 4 via the belt type continuously variable transmission device 7, the gear type transmission device 8 and the like. The seedling planting device 3 includes a feed case 14, a transmission case 15,
It is composed of a planting mechanism 16, a seedling stand 17, a leveling float 18, and the like, and the power from the traveling machine body 1 is transmitted to the feed case 14 to perform the planting operation. The fertilizer application device 4 includes a hopper 19 for storing fertilizer, a feeding mechanism 20 for feeding fertilizer, a guide hose 21 for guiding fertilizer, a groover 22 for burying fertilizer, and an electric blower 23 for pumping fertilizer. The power from the traveling machine body 1 is transmitted to the feeding mechanism 20 and the electric blower 23 operates to perform fertilization operation.

As shown in FIGS. 1-8, step 13 comprises:
Step 1 for boarding / alighting made of sheet metal arranged on the left and right of the front part of the traveling machine body 1 so that the passenger can get on and off from the front part of the traveling machine body 1.
3A, a boarding step 13B made of sheet metal that allows the traveling body 1 to get in and out from the left and right, and forms a control area.
And a sheet metal replenishment step 13C formed by widening the left and right rear fenders 24 so that it is possible to replenish the seedling planting device 3 with the seedlings and the fertilizer supply device 4 with the fertilizer. Are arranged side by side in the front-rear direction of the traveling machine body 1. The boarding / alighting step 13A, the boarding step 13B, and the replenishing step 13C are supported by a support member 25 extending from the machine body frame 5.

On both the right and left outer sides of step 13, the rearward rising is made to extend to the upper and lower ends of the fertilizer application device 4 and the seedling placing table 17 having a length substantially extending in the front-rear direction of step 13 and rearward sides thereof. The auxiliary steps 26 formed so as to be inclined are connected. Each auxiliary step 26
A support frame 28 connected to the support member 25 of the machine body frame 5 and the connecting fitting 27 of the step 13, a first plate-shaped member 29 disposed in the front portion of the support frame 28, and a first plate-shaped member in the support frame 28. The second plate-shaped member 30 includes three second plate-shaped members 30 arranged side by side on the rear side of the member 29. That is, each auxiliary step 26 has a split structure in which the step portion 26A can be divided into four plate-shaped members 29 and 30 arranged in parallel in the front-rear direction. The support frame 28 includes a pipe frame 31 extending from the boarding / alighting step 13A to the supply step 13C, a connecting member 32 connecting the pipe frame 31 to the supporting member 25 and the connecting fitting 27, and the like. The first plate-shaped member 29 is a resin-molded product formed in a substantially trapezoidal lattice shape having step surfaces 29a on its front and back surfaces and a plurality of see-through holes 29b. The second plate-shaped member 30 is a resin-molded product that has a step surface 30a on the front and back surfaces and a plurality of transparent holes 30b and is formed in a substantially rectangular grid shape. On the front part of the pipe frame 31, a support fitting 34 that supports the preliminary seedling stand 33 is fixed. The preliminary seedling mounting table 33 includes a pair of front and rear columns 35 connected to the support fittings 34, and three mounting tables 3 supported by the front and rear columns 35 with a predetermined space therebetween in the vertical direction.
It is composed of six. Among the front and rear struts 35, the front struts 35 are formed in a straight line, and the rear struts 35 are formed in a bent shape in which the mounting table support portion 35A is displaced toward the inside of the body.

As described above, in short, the length of the step 13 provided on the traveling body 1 is approximately the front-rear length (the step 13A for getting on and off, the step 13B for boarding, and the supply for replenishing, which are provided on the traveling body 1 so as to be continuous in the front-rear direction). By connecting the auxiliary step 26 formed to have a length that substantially covers the front-rear length of the step 13C) to both the left and right outer sides of the step 13, the boarding / alighting step 13A, the boarding step 13B, and the replenishing step 13C Front and rear wheels 9,
Since it is in a state of being expanded to a width that protrudes from the tread width of 10, the seedling replenishment is performed while moving from the auxiliary seedling stand 33 erected at the front lateral outer edge of the auxiliary step 26 to the seedling planting device 3. Work can be done easily and auxiliary step 2
It is easy to get on and off from the front part of the traveling machine body 1 while carrying a heavy supplement such as mat-like seedlings and bagged fertilizer while the auxiliary seedling stand 33 is erected at the front lateral outer end of 6 It can be done.

The auxiliary step 26 has a plurality of see-through holes 2
Due to the formation of 9b and 30b, the step 13A for getting on and off and the step 13C for replenishment are expanded to cover the front and rear wheels 9 and 10 while being wide, and even when seated in the driver's seat 12, the front wheel 9 and the rear wheel 9 The wheel 10 can be easily seen, which allows, for example, a rice transplanter to
When traveling on a walk board that is used when loading and unloading from a truck bed or when entering and leaving a field, it is easy to position the front wheels 9 and the rear wheels 10 relative to the running road surface such as the walk board. Therefore, it is possible to prevent the inconvenience of the front and rear wheels 9 and 10 derailing from the traveling road surface.

In other words, even when the preliminary seedling mounts 33 are provided at the left and right outer ends of the front part of the machine body, the traveling machine body 1 from the front part of the traveling machine body 1 while carrying heavy supplements such as mat-like seedlings and baggage fertilizers. While making it possible to easily get on and off, it is possible to prevent the inconvenience of the front and rear wheels 9, 10 derailing from the traveling road surface such as a step board, and to improve workability when performing the replenishment work on the step 13. It can be improved.

Moreover, since each auxiliary step 26 can be constructed by arranging the small and lightweight plate-like members 29 and 30 arranged in parallel, the auxiliary step 26 has a length substantially in the front-rear direction of the step 13 of the traveling machine body 1. This is advantageous in terms of manufacturing as compared with the case of an integral structure having the entire length, and also, of the four plate-shaped members 29 and 30 in each auxiliary step 26, three second members are used. By forming the plate member 30 in the same shape, the cost required for manufacturing the second plate member 30 can be suppressed, so that the manufacturing cost required for the auxiliary step 26 can be reduced. .

In addition, the step surfaces 29a and 30a are formed on the front and back surfaces of the plate members 29 and 30, respectively, so that both front and back surfaces can be used.
Since the stepped portion 26A can also be used on both front and back sides, the stepped portion 26A of the left and right auxiliary steps 26 having a bilaterally symmetrical shape has two stepped portions 26A having the same shape, that is, two first plates. It becomes possible to manufacture by manufacturing the plate-shaped member 29 and the six second plate-shaped members 30. Therefore, as compared with the case where the left and right step portions 26A are individually manufactured, the manufacturing is facilitated and manufactured. The cost can be reduced.

That is, it is possible to effectively facilitate the production and reduce the production cost.

Further, since the support column 35 at the rear of the spare seedling stand 33 is formed so as to be bent so that the mount support portion 35A is displaced toward the inside of the body, the spare seedling stand 3 is provided.
The support frame 2 of the auxiliary step 26 having high strength
It can be installed from 8 and auxiliary step 2
6 can be extended to the lower side of the preliminary seedling placing table 33, so that, for example, as compared with the case where the support column 35 of the preliminary seedling placing table 33 is erected from the step surface 29a of the auxiliary step 26, It becomes possible to increase the support strength of the platform 33, and when getting on and off from the front part of the traveling machine body 1, it is possible to step under the spare seedling mounting table 33, so the front part of the traveling machine body 1 It is easier to get on and off the train.

Furthermore, when the traveling machine body 1 is equipped with a seedling planting device for four-row planting, step 13 of the traveling machine body 1 is performed.
By removing the auxiliary step 26 from 4, the traveling machine body 1 for four-row planting having a machine body width adapted to the seedling planting device for four-row planting can be easily configured. That is, since the traveling machine body 1 can be commonly used regardless of the number of planting rows of the seedling planting device 3, in manufacturing the rice transplanter having a different number of planting rows, the manufacturing is simplified and the manufacturing cost is reduced. Can be significantly improved.

As shown in FIG. 9, the driver's seat 12 is mounted on a cover member 38 which is placed and supported on a frame 37 standing upright from the rear of the machine frame 5. Cover member 38
Is connected to the frame body 37 via a waist bending link mechanism 39 so that it can be displaced between an acting position that covers the frame body 37 and a non-acting position that is separated from the frame body 37 forward. That is, by displacing the cover member 38 from the acting position to the non-acting position, the driver seat 12 can be displaced together with the cover member 38 to the non-acting position, and the installation location of the frame 37 can be largely opened. As a result, it is possible to improve workability when performing maintenance of various devices (not shown) arranged in the frame 37.

The reference numeral 40 shown in the drawing indicates each auxiliary step 26 for facilitating the boarding and alighting of the traveling machine body 1 from the left and right.
It is a step step provided at the lateral outer end of.

[Other Embodiments] Other embodiments of the present invention will be listed below. The rice transplanter may not be equipped with the fertilizer application device 4, or the fertilizer application device 4 may be provided at the rear part of the seedling planting device 3. The support frame 28 of the auxiliary step 26 is attached to the step portion 26.
Similar to A, it may be dividable. The support frame 28 of the auxiliary step 26 is attached to the step portion 26.
Similar to A, both front and back sides may be used. The auxiliary step 26 may be configured so that both the front and back sides cannot be used. The number of divisions of the auxiliary step 26 can be variously changed, and the auxiliary step 26 may be configured to be non-dividable. The shapes of the first plate-shaped member 29 and the second plate-shaped member 30 can be changed in various ways. The first plate member 29 and the second plate member 30 may be formed in the same shape. The first plate-shaped member 29 and the second plate-shaped member 30 may be made of sheet metal material. The auxiliary step 26 may be configured not to extend below the auxiliary seedling stand 33.

[Brief description of drawings]

[Figure 1] Overall side view of a riding-type rice transplanter equipped with auxiliary steps

[Fig. 2] Overall plan view of a riding type rice transplanter equipped with auxiliary steps

FIG. 3 is a plan view showing a configuration of auxiliary steps.

FIG. 4 is a plan view showing the shape of a first plate member.

FIG. 5 is a plan view showing the shape of a second plate member.

FIG. 6 is a vertical cross-sectional rear view of the rear side of the auxiliary step showing the configuration and support structure of the auxiliary step.

FIG. 7 is a vertical sectional rear view of the front side of the auxiliary step, showing the structure and support structure of the auxiliary step.

FIG. 8 is a vertical cross-sectional rear view of an intermediate portion of the auxiliary step showing the configuration and support structure of the auxiliary step.

FIG. 9 is a schematic side view of essential parts showing a support structure for a driver's seat and a cover member.

[Explanation of symbols]

1 traveling machine body 5 body frame 13 step 26 auxiliary step 28 support frame 29 plate member (first plate member) 29b transparent hole 30 plate member (second plate member) 30b transparent hole 31 frame 32 connecting member 33 preliminary seedling Stand 35 Support

Continuation of front page (56) Reference JP-A-4-247136 (JP, A) JP-A-1-235766 (JP, A) JP-A-8-142931 (JP, A) JP-A-9-187123 (JP , A) Actually open 4-26185 (JP, U) Actually open 56-125954 (JP, U) Actually open 58-107714 (JP, U) Japanese Patent Publication 7-63251 (JP, B2) (58) Fields investigated (Int.Cl. ⁷ , DB name) A01C 11/02 B62D 25/22

Claims (4)

(57) [Claims] The left and right outer sides of claim 1] equipped with steps in vehicle body, respectively, to connect the auxiliary steps substantially Ru is formed to a length over the longitudinal length of the step, the auxiliary step
The plate-shaped member with the see-through hole and the plate-shaped member
And a supporting frame for supporting and placing the supporting frame.
The frame that forms the outer frame of the auxiliary step and its frame
It consists of a connecting member that connects the rame to the body frame.
Step structure of a riding rice transplanter. 2. The auxiliary step is a divided structure composed of a plurality of plate-shaped members arranged in parallel in the front-rear direction, and a part of the plurality of plate-shaped members is formed in the same shape. The step structure of the riding type rice transplanter according to claim 1. 3. The step structure of a riding type rice transplanter according to claim 1, wherein the auxiliary step is formed so that both front and back sides can be used. 4. The auxiliary step extends below a preliminary seedling mounting table provided in a front portion of the traveling machine body, and a column of the auxiliary seedling mounting table is erected from a support frame of the auxiliary step. The step structure of the riding type rice transplanter according to any one of claims 1, 2 and 3.