JP2599044Y2 - Rolling stopper device for working part in mobile agricultural machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rolling stopper device for a mobile agricultural machine in which a working unit is rotatably supported on a traveling machine body.

[0002]

2. Description of the Related Art Conventionally, in a mobile agricultural machine such as a riding rice transplanter, a bearing holder is provided on a traveling machine body side to rotatably support a working unit on the traveling machine body, and rolling of the working unit supported by the bearing holder is performed. 2. Description of the Related Art There is known an apparatus in which a shaft is mounted in a mounting hole formed in a drive case.

[0003]

[Problems to be Solved by the Invention] By the way, it is desired that the mobile agricultural machine of this type has a compact body.
Therefore, if the rolling shaft is arranged in an inclined shape, the working part can be brought closer to the traveling machine and the overall length can be shortened, but on the other hand, there is a problem that water enters the mounting hole of the rolling shaft when washing the car etc. In order to prevent this, a complicated waterproof structure using an oil seal or the like is required in the mounting hole of the rolling shaft, which causes a problem that the cost is increased.
The present invention has been made in order to solve the above-described problems, and the use of a stopper plate that regulates the rolling range allows water to be provided without providing a particularly complicated waterproof structure in the mounting hole of the rolling shaft. It is an object of the present invention to provide a rolling stopper device for a working unit in a mobile agricultural machine, which can easily prevent intrusion of the like.

[0004] To solve the above problems, technical means which the present invention is taken in the working unit through a rolling shaft bearing holder provided on the vehicle body side in the rotatably supporting mobile agricultural machine, the rolling The shaft is the drive case on the working unit side.
Is mounted in a mounting hole formed in
To regulate the rolling range close to the mounting position of the shaft
A stopper plate is provided, and the stopper plate is
A rising surface for covering the opening side of the hole, wherein the rising surface is a waterproof portion;
Is formed to prevent water from entering the mounting hole .

[0005]

Therefore, according to the present invention, the rolling range of the rotatable working unit supported by the traveling machine body is regulated by the stopper plate provided at a position close to the rolling shaft. Since the waterproof portion formed on the stopper plate covers the mounting portion of the rolling shaft, water does not enter the mounting portion of the rolling shaft even when the vehicle is washed.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the accompanying drawings. Reference numeral 1 denotes a traveling body of a riding rice transplanter exemplified as a mobile agricultural machine. An engine unit 6 covered with a bonnet 5 is mounted on a front part of a body frame 4 having a front wheel 2 and a rear wheel 3, and a rear part thereof. A driver's seat 7 is provided. A working part 11 for planting seedlings, which includes a seedling mounting table 8, a float 9, a seedling planting rod 10, and the like, is mounted behind the traveling machine body 1 via a link mechanism 12 so as to be able to move up and down. 13
Is a running handle, and 14 is an auxiliary seedling stand.

Reference numeral 15 denotes an upper link constituting the link mechanism 12, and 16 denotes a lower link, which is an upper link 1
The parallel link is formed by pivotally connecting the front end of the lower link 5 and the lower link 16 to a vertical frame 17 provided on the body side, and pivotally connecting the rear end of the lower link 16 to a vertical connecting frame 18. A hydraulic cylinder 19 is disposed between the middle part of the upper link 15 and the rear end of the machine body, and the link mechanism 12 moves up and down by the expansion and contraction operation of the hydraulic cylinder 19. The lower end of the connection frame 18 has a U
The U-shaped bracket 20 is fixed, and the support pipe 21 supported by the U-shaped bracket 20 forms a bearing holder 22 that rotatably supports the working unit 11. The support pipe 21 is disposed and fixed in an inclined shape that descends rearward. Numeral 23 denotes a planter case of the working unit 11, on which a planting rod 10 for planting operation is attached to the rear end of the planter case 23, and above which a seedling mounting table 8 having a front and rear height is supported. It is supported by a rod 24 so as to be able to move left and right. Reference numeral 25 denotes a support arm provided at the upper end of the quick-setting arm 18. A balance spring 26 is stretched between the upper end of the support arm 25 and the left and right ends of the seedling mounting table 8.

Reference numeral 27 denotes a laterally extending drive case fixed to the front of the planter case 23, and a rolling shaft 28 supported by the support pipe 21 is attached to a substantially central portion of the drive case 27. The rolling shaft 28 is supported by mounting holes 29 formed in the drive case 27 via bearings 30, 30.
31 is a C pin for retaining. The working shaft 11 can be freely rolled by inserting the rolling shaft 28 through the support pipe 21 from behind and fastening the tip with a nut 32. 33 is a stopper plate fixed to the support pipe 21;
Is a rising surface 3 that is inserted through and fixed to the outer periphery of the support pipe 21.
4 and a bottom portion 3 bent and extended to the drive case 27 side
5 form a substantially L-shape. The rising surface 3
Reference numeral 4 denotes a large side projecting to the side of the support pipe 21.
A stopper bolt 37 implanted in the hole is inserted through the stopper hole 37 so as to restrict the rolling of the working unit 11 within the range of the elongated hole 36. Further, a rolling suppression plate 38 made of a leaf spring is provided at the lower end of the drive case 27 at the end of the bottom surface 35. By providing the stopper plate 33 close to the mounting position of the rolling shaft 28 mounted on the drive case 27, the rising surface 34 of the stopper plate 33 covers the opening side of the mounting hole 29 and water or the like enters. , A waterproof portion 39 is formed to prevent the occurrence of the water. The stopper plate 33
Of course, the rising surface 34 may project from both sides of the support pipe 21.

In the above-described configuration, when the planting operation is performed, the float 9 slides on the rice field, and the working unit 11 rolls around the rolling shaft 28 according to the state of the rice field. Even if the working unit 11 attempts to roll largely, the stopper plate 33 regulates the rolling range, so that the work can be performed smoothly.
Even when 1 is raised, the working unit 11 does not tilt significantly. Further, since the support pipe 21 of the bearing holder 22 is inclined, the distance between the traveling machine body 1 and the working unit 11 is made as small as possible, and the machine body can be made compact. And even car wash or the like of the aircraft, rising surface 34 of the stopper plate 33 can be satisfactorily prevent water or the like from intruding because it forms a waterproof portion 39 for covering the mounting hole 29 of the rolling axis 28.

[0010]

In summary, the present invention relates to a mobile agricultural machine in which a working unit is rotatably supported via a rolling shaft on a bearing holder provided on a traveling machine body side, and the rolling shaft is
Attach to the mounting hole formed in the drive case on the working part side
That is close to the mounting part of the rolling shaft.
Provide a stopper plate that regulates the
The topper plate has a rising surface covering the opening side of the mounting hole.
The rising surface forms a waterproof portion, so that the
Since the intrusion of water is prevented, the rolling range of the rotatably supported working unit is restricted by the stopper plate, so that the working unit is not greatly inclined. Then, the rolling shaft attached to the working unit, the rising surface of the stopper plate which is provided on its proximity position to form a waterproof unit Lori
Since it covers the opening side of the shaft shaft mounting hole, it is installed on the drive case without providing a waterproof structure that increases the cost in particular.
Further, it is possible to favorably prevent water or the like from entering the rolling shaft mounting hole .

[Brief description of the drawings]

FIG. 1 is an overall side view.

FIG. 2 is a front view of the same.

FIG. 3 is an enlarged plan view of a main part.

FIG. 4 is a side view of the same.

FIG. 5 is an overall side view of the mobile farm machine.

FIG. 6 is a side view of the link mechanism.

FIG. 7 is a rear view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traveling body 11 Working part 22 Bearing holder 28 Rolling shaft 33 Stopper plate 39 Waterproof part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A01C 11/02 311 A01C 11/02 320 A01B 63/10

Claims (1)

(57) [Scope of request for utility model registration] 1. A moving agricultural machine in which a working unit is rotatably supported via a rolling shaft on a bearing holder provided on a traveling machine body side, wherein the rolling shaft is mounted on a drive case on the working unit side.
The rolling shaft is mounted in the formed mounting hole.
Struts that regulate the rolling range in close proximity to the
A stopper plate is provided, and the stopper plate is
It has a rising surface that covers the opening side, and the waterproof surface is formed with the rising surface.
Working portion of the rolling stopper device in a mobile agricultural machine is characterized in that form.