JP2002360021A - Seedling platform-supporting frame of rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To overcome such problems that a conventional seedling platform- supporting frame has a complicated structure and is difficult to reduce the weight. SOLUTION: This seedling platform-supporting frame 116 is composed of a transverse frame 116T and frames 116R and 116L connected to both left and right sides of the transverse frame 116T and arranged in the vertical directions into a nearly portal type when viewed from the front. Oblique frames 117R and 117L are obliquely installed in the form of V in the nearly portal type frame 116. A rod mounting part 118 supporting one end of a rolling cylinder 119 is arranged in nearly the course of the oblique frame 117L and a reinforcing transverse frame 121 is transversely installed between the rod mounting part 118 and the vertical frame 116L. A reinforcing oblique frame 123 is obliquely arranged between the rod mounting part 118 and a supporting member 115L.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling support frame for supporting a seedling mounting table of a multi-planted rice transplanter, such as a five-row plant or a six-row plant.

[0002]

2. Description of the Related Art A planting part is mounted on a traveling part of a rice transplanter so as to be able to move up and down. The conventional nursery stand support frame has a gate type by assembling columns on both left and right sides and a connecting rod connecting the left and right columns, and a lower portion of the left and right columns is erected on a planting chain case, and the planting is performed. The chain cases were connected by connecting pipes to form a square frame. Further, a rolling cylinder is provided laterally above a top link connected to the hitch, and the tip of a cylinder rod is connected to one of the left and right supports for supporting the seedling mounting table via a frame or the like.

[0003]

However, the conventional seedling support frame has a complicated structure and is difficult to reduce in weight. In addition, since the rolling cylinder is placed horizontally above the top link, it is difficult to increase the vertical distance between the lower link and the top link, making it difficult to obtain stable support and increasing strength. Led to an increase.

[0004]

The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

That is, in the seedling supporting frame for supporting the seedling mounting stand, the seedling supporting columns are erected on both right and left sides of a pipe-shaped member provided laterally below the planting portion. The upper part of the column is connected by an upper connecting member to form a seedling support frame in a substantially gate shape in a front view. The oblique member is obliquely provided.

According to a second aspect of the present invention, in the diagonal member, a rod mounting portion for a rolling cylinder is provided in a middle portion or a tip portion of one of the right and left diagonal members.

[0007] In the third aspect, from the rod mounting portion,
A reinforcing member is provided to the seedling support in the outward direction.

According to a fourth aspect of the present invention, in the rod attachment portion provided at an intermediate portion of the left and right diagonal members, a reinforcing member is provided from the rod attachment portion to the outer side of the seedling support column.

[0009]

Next, embodiments of the present invention will be described. FIG. 1 is a side view showing the overall configuration of a rice transplanter provided with a seedling support frame of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a side view of a planting portion, and FIG. , FIG.
6 is a front view showing the configuration of the seedling support frame of the present invention in a six-row planting rice transplanter, FIG. 6 is a rear view thereof, and FIG. 7 is a rear view showing the configuration of the seedling supporting frame of the present invention in a five-row planting rice transplanter. It is.

First, an overall configuration of a rice transplanter provided with a seedling support frame according to the present invention will be described. In the present embodiment, an example in which the present invention is applied to a riding rice transplanter will be described. However, the present invention is not limited to this, and can be applied to a walking rice transplanter. The planting section is a six-row planting type, but is not limited to this.

As shown in FIGS. 1 and 2, the riding rice transplanter is mounted at the rear of the traveling section 1 through an elevating link mechanism 27.
The traveling section 1 has an engine 2 mounted above the front of the body frame 3 and a front axle case 5
The front wheel 6 is supported via a rear axle case 7 at the rear. The engine 2 is covered with a bonnet 9,
Spare seedling stands 30 are provided on both sides of the bonnet 9.
A steering handle 14 is disposed at the rear. The operation panel 4 and the like are arranged below the steering handle 14. The body cover 12 that covers the body frame 3 of the traveling unit 1 forms a main step 10 from the rear of the hood 9 to the front of the seat 13, and the rear of the main step 10 rises high and the seat 13 is provided thereon. Have been. A main transmission lever, a planting portion elevating lever, an accelerator lever, and the like are disposed on both left and right sides of the steering handle 14, and a hydraulic continuously variable transmission (HS) is provided in front of the main step 10.
A sub-transmission pedal 32 for operating T) and a brake pedal 33 are provided.

As shown in FIGS. 1 to 5, the planting section 15 comprises a seedling mounting table 16, planting claws 17, 17..., A center float 34, a side float 35, and the like. The seedling mounting table 16 is disposed at the front height and the rear, and the lower part of the seedling mounting table 16 is supported by the lower guide rail 18D, and the upper part of the front surface is slidably reciprocated left and right by the upper guide rail 18U.
The upper guide rail 18 </ b> U is supported by a seedling support frame 116 erected above and forward of the planting transmission frame 20. Then, a rotating case 2 that rotates in one direction via a planting arm shaft (not shown) in the planting transmission frame 20.
.. Are arranged one by one on the left and right sides of the planting arm shaft, and the planting claws 17 are respectively provided on the rotating cases 22.
.. 17 are arranged two by two.

As shown in FIG. 4, a hitch table 24a as a support member is formed at the front center of the planting transmission frame 20, and the hitch 24 (FIG. 3) is fitted and fixed to the hitch table 24a. A rolling fulcrum shaft (not shown) is attached to the hitch table 2.
4a and the hitch 24 are inserted into holes formed in both and are swingably supported. A hitch 24 is connected to a rear portion of an elevating link mechanism 27 including a top link 25 and a lower link 26, and an elevating cylinder (not shown) for driving the elevating link mechanism 27 is connected to a lift arm 28 connected to the lower link 26. And planting part 1
5 can be moved up and down. And the front wheel 6
6 and the rear wheels 8.8 are driven to move, and at the same time, the seedlings for one plant are taken out from the seedling mounting table 16 which can be reciprocally slid left and right by the planting claws 17. It is configured to perform seedling planting work.

Support pipes 130 extend in the left-right direction from the vicinity of the left and right ends of the planting transmission frame 20, and drawing markers 140 (140R / 140L) are provided at the ends of the support pipes 130. ) Are provided so as to be vertically rotatable, and the drawing marker releasing mechanism 150 (15) is provided.
0R.150L). Further, a side bumper 131 that protects the seedling mounting table 16 from the lower side of the support pipe 130 is lateral to the support pipe 130,
It is installed to face the rear of the aircraft. The side bumper 131 prevents an obstacle from colliding with the lower part of the seedling mounting table 16 from the side and below during planting work on a ridge or over a ridge. Furthermore, the planting frame 2 behind the rear wheel 8.8
0 and the support pipe 130 are fixed to the mudguard plate 122.
122 is provided to prevent the mud that the wheels jump from accumulating on the side float 35.

Next, the planting transmission frame 20 of the planting section 15
Will be described. As shown in FIGS. 4 and 5, in this embodiment, the planting portion 15 is of a six-row planting type, and therefore, a rotary planting device 21, 21 composed of a rotating case 22 and two planting claws 17, 17. And six sets, and a total of twelve planting claws 17. Therefore,
.. Provided with a mechanism for rotating the planting claws 17.
55 and 55. The transmission pipe 55
The area behind 55/55 will be referred to as the planting unit 29.

The transmission pipes 55, 55, 55 located in front of the planting units 29, 29, 29 are connected to connecting pipes 57L, 57C, via a cross joint 41L, 41C, 41R and an input cross joint 40. 57R, the planting transmission frame 20 having a substantially "comb" shape in plan view is formed. In the present embodiment, an input cruciform joint 40, which is an input unit to the planting transmission frame 20, is disposed between the central cruciform joint 41C and the right cruciform joint 41R, and the input cruciform joint 41C is connected to the central cruciform joint 41C. The cross joint 40, the input cross joint 40, and the right cross joint 41R are each connected to a connecting pipe 57C
57R.

The planting transmission frame 2 configured as described above
, 0, the open side of the comb is turned rearward, and the rotary planting devices 21, 21...
Are arranged respectively. A hitch table 24a for mounting and fixing the hitch 24 is fixedly provided on the upper part of the central cross joint 41C.

Next, the configuration of the seedling support frame 116 of the present invention will be described. As shown in FIGS. 5 to 7, the seedling support frame 116 that supports the seedling mounting table 16 is a horizontal frame 116 that is an upper connecting member that is disposed in the left-right horizontal direction.
T and a vertical frame 116R.1 which is a seedling support column connected to the left and right sides of the horizontal frame 116T and arranged vertically.
It is composed of 16L and has a substantially gate shape when viewed from the front.

The vertical frames 116R and 116L are fixed to support members 115R and 115L which are provided upright in front of and above the planting transmission frame 20 which is a pipe-like member horizontally provided on the seedling mounting table, so that, when viewed from the side, The vertical frame 116R
116L is configured to be substantially parallel to the seedling mounting table 16. When the vehicle is running or stored, the drawing marker 1 is used.
Draw marker 14 so that 40 is not in the way.
The marker storage hook 114 for locking the right side of the seedling mounting table 16 in front of the left and right ends in the state where the storage position is raised by raising the zero
Are provided above the vertical frames 116R and 116L.

The horizontal frame 116T has a plurality of shoe mounting members 19f, 19f,
.. standing up, the shoe mounting members 19f, 19f,.
The shoe 19 is disposed above the. An upper guide rail 18U for fixing the seedling mounting table 16 is mounted on the shoe 19.

In the first embodiment, as shown in FIGS. 5 and 6, the oblique transmission is carried out between the left and right central portions of the planting transmission frame 20 and the vicinity of the fixed portion between the vertical frames 116R and 116L and the horizontal frame 116T. Diagonal frame 117R as a member
・ 117L is inclined. The planting transmission frame 20
The diagonal frame 1 is attached to a hitch table 24a serving as a support member provided in a central cruciform joint 41C located at the center in the left and right directions.
17R and 117L are fixed by welding so as to be substantially V-shaped when viewed from the rear. Oblique frame 117R ・ 117L
Is bent so as to be parallel to the hitch table 24a, and is fixed to the hitch table 24a by welding. The upper end of the left oblique frame 117L is bent parallel to the horizontal frame 116T and is fixed to the horizontal frame 116T by welding. The upper end of the right oblique frame 117R is viewed as a vertical frame. 116R is bent so as to be parallel to the vertical frame 1R.
16R is fixed by welding. With this configuration, the rolling rigidity is satisfied and the structure can be simplified, so that the weight of the seedling support frame 116 can be reduced.

A rod mounting portion 118 for supporting one end of a rolling cylinder 119 is provided at a substantially middle portion of the oblique frame 117L, and an end of a cylinder rod 120 of the rolling cylinder 119 provided laterally on the hitch 24 is pivoted. Has been established. The rod mounting portion 118 is arranged parallel to the cylinder rod 120. With such a configuration,
Since the rod mounting portion 118 of the rolling cylinder 119 which requires strength can be provided in the middle of the seedling support frame 116 configuration, the structure can be simplified.
In addition, the rolling cylinder 119 and the seedling support frame 1
Since there is no need to separately provide a component for attaching the component 16 to the frame, the weight can be reduced.

The rolling cylinder 119 is provided with a cylinder rod 120 based on the inclination operation speed from the angular velocity sensor provided on the traveling section 1 and the right and left inclination of the planting section 15 detected by the inclination angle sensor provided on the planting section 15. To function to keep the seedling support frame 116 and the planting portion 15 horizontal. The arrangement of the cylinder portion 119 a of the rolling cylinder 119 is located between the top link pivot portion 25 a and the lower link pivot portion 26 a in the hitch 24. With such a configuration, the vertical distance between the top link pivot portion 25a and the lower link pivot portion 26a can be increased, which is advantageous in terms of strength and light weight. Further, since the cylinder portion 119a of the rolling cylinder 119 can be directly attached to the hitch 24, a part for attaching the rolling cylinder 119 can be omitted, and the hitch 24 can be integrated with the hitch 24.

Further, a reinforcing horizontal frame 121 is provided between the rod mounting portion 118 and the vertical frame 116L. The reinforcing horizontal frame 121 is connected to the cylinder rod 1
20 and one side is fixed to the vertical frame 116L, and the other side is fixed to the rod mounting part 118.

A reinforcing diagonal frame 123 is obliquely provided between the rod mounting portion 118 and the support member 115 (FIG. 4). The upper end of the reinforcing diagonal frame 123
It is bent so as to be parallel to the cylinder rod 120 and fixed to the rod mounting portion 118 by welding, and the lower end is bent so as to be parallel to the vertical frame 116R and fixed to the support member 115L by welding. . Further, it is also possible to adopt a form in which it is fixed to the vertical frame 116R without being fixed to the support member 115. In such a configuration, the rod mounting portion 118 and the reinforcing horizontal frame 121 are disposed on the extension of the cylinder rod 120 that slides in the left-right direction, so that the rigidity of the seedling support frame 116 is reduced by providing a simple reinforcing member. Can be secured and reduced in weight.

In the above configuration, when the planting portion 15 is tilted, the rolling cylinder 119 is driven by signals from the angular velocity sensor and the tilt angle sensor, slides the cylinder rod 120, and moves the seedling support frame 116 horizontally. By doing so, the planting section 15 can be made horizontal.
For example, when the planting part 15 is tilted to the upper left in the rear view, the seedling support frame 116 is made horizontal by extending the cylinder rod 120 and pushing the rod supporting part 118, and the whole planting part 15 is horizontally moved. To Further, when the planting portion 15 is inclined upward to the right in rear view, the cylinder rod 120 is contracted and the rod supporting portion 118 is pulled to level the seedling stand supporting frame 116 so that the planting portion 1 is horizontal.
5 can be horizontal.

As a second embodiment, as shown in FIG. 7, the left and right central portions of the planting transmission frame 20 and the vertical frame 1
Oblique frames 117R and 117L, which are oblique members, are inclined toward the upper portions of 16R and 116L. A hitch table 24a is fixedly provided at the left and right central portions of the planting transmission frame 20, and the diagonal frames 117R and 117L are substantially V
It is shaped like a letter. Oblique frame 117R ・ 1
The lower end of 17L is bent so as to be parallel to the hitch table 24a, and is fixed to the hitch table 24a by welding. In addition, the upper end of the oblique frame 117L on the left side as viewed from the rear is bent so as to be parallel to the rod mounting portion 118,
The upper end of the oblique frame 117R on the right side as viewed from the rear is fixed to the rod mounting portion 118 by welding.
6R to be parallel to the vertical frame 116R.
It is fixed to R by welding.

The rod mounting portion 118 supports one end of the rolling cylinder 119 and pivots the end of the cylinder rod 120 of the rolling cylinder 119 which is provided laterally on the hitch 24. The rod mounting portion 118 is arranged parallel to the cylinder rod 120. The other parts except the reinforcing diagonal frame 123 have the same configuration as the first embodiment in FIGS. 5 and 6 described above.

In the above-described configuration, the rod mounting portion of the rolling cylinder that requires strength can be provided in the middle of the frame configuration.
The rolling rigidity can be satisfied. Further, since it is not necessary to separately provide an attachment part for the rolling cylinder 119 and the hitch 24 from the frame, the weight can be reduced.

[0030]

The present invention is configured as described above.
The following effects are obtained.

That is, in the seedling supporting frame for supporting the seedling mounting table, the seedling supporting columns are erected on both right and left sides of a pipe-like member provided laterally below the planting portion. The upper part of the stand support is connected by an upper connecting member to form a substantially gate-shaped seedling stand supporting frame in front view, and from the support member provided at the left and right central part of the pipe-shaped member in the upper direction of the left and right both sides of the seed stand support. Since the oblique members are inclined, the structure of the seedling support frame can be simplified and the rigidity can be increased.
The rolling rigidity can be ensured, and the weight can be reduced.

According to a second aspect of the present invention, in the diagonal member, since the rod mounting portion of the rolling cylinder is provided at a middle portion or a tip portion of one of the left and right diagonal members, the rod mounting portion of the rolling cylinder which requires strength is provided. The part can be provided in the middle of the frame configuration, and the structure can be simplified. Also, since there is no need to separately install the mounting part of the rolling cylinder from the frame,
It becomes lighter.

According to the third aspect, from the rod mounting portion,
Since the reinforcing member is provided in the outward direction up to the seedling support, the rigidity of the cylinder rod mounting portion can be secured only by providing a simple reinforcing member, and the weight can be reduced.

According to a fourth aspect of the present invention, the reinforcing member is provided from the rod mounting portion to the lower portion of the seedling support in the rod mounting portion provided in the middle of the left and right diagonal members. Rigidity can be secured simply by providing a simple reinforcing member, and the weight is reduced.

[Brief description of the drawings]

FIG. 1 is a side view showing the overall configuration of a rice transplanter provided with a seedling support frame according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view of the planting section.

FIG. 4 is a plan view of the same.

FIG. 5 is a rear view showing the configuration of the seedling support frame of the present invention in the six-row rice transplanter.

FIG. 6 is a front view of the same.

FIG. 7 is a rear view showing the configuration of the nursery stand support frame of the present invention in the five-row type rice transplanter.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Running part 15 Planting part 16 Seedling stand 20 Planting transmission frame 116 Seedling stand support frame 119 Rolling cylinder

Claims (4)

[Claims] 1. A seedling supporting frame for supporting a seedling mounting stand, a seedling supporting post is erected on both left and right sides of a pipe-shaped member laterally provided below a planting portion, and an upper portion of the seedling supporting post is connected to an upper portion. Composed of members to form a seedling support frame in a substantially gate-shaped front view,
A nursery stand support frame for a rice transplanter, wherein an oblique member is inclined from a support member provided at a central part on the left and right sides of the pipe-shaped member toward upper portions of nursery stand posts on both right and left sides. 2. The nursery stand support of a rice transplanter according to claim 1, wherein a rod mounting portion of a rolling cylinder is provided in a middle part or a tip part of one of the left and right diagonal members. flame. 3. A seedling support frame for a rice transplanter according to claim 1, wherein a reinforcing member is provided from the rod attachment portion to the seedling support in an outward direction. 4. A rod mounting portion provided in the middle of one of the left and right oblique members, a reinforcing member is provided from the rod mounting portion to a lower portion of the seedling support post outwardly. The seedling support frame of the rice transplanter according to any one of the above.