JP2588861Y2 - Rice seedling support structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spare seedling support structure for a rice transplanter in which a support for a spare seedling is erected on the side of a frame of a traveling machine.

[0002]

2. Description of the Related Art Conventionally, in a structure for supporting a spare seedling stand of a rice transplanter, conventionally, a lower end of a column of the spare seedling stand is bolted and fixed to an outer surface of a frame body made of a square pipe at two upper and lower positions. (See, for example, Japanese Patent Application Laid-Open No. 58-152).
No. 824).

[0003]

In the above conventional structure, the distance between the upper and lower bolt connecting portions of the column with respect to the frame body is determined by the vertical width of the square pipe. It was difficult to increase the strength. Of course, if the frame body is a large square pipe with a large vertical dimension, or if a bracket with a large vertical dimension is welded and fixed to the square pipe, it is also possible to increase the interval between bolt connection points and increase the column connection strength. In addition, a thick square pipe causes an increase in weight and poor workability, and the introduction of a special bracket is not preferable in appearance design, and there is room for improvement. An object of the present invention is to increase the strength of the frame body without increasing the weight of the frame body, without impairing the appearance, and to increase the connection strength of the columns.

[0004]

A feature of the present invention is that a spare seedling support structure of a rice transplanter, in which a support for a spare seedling stand is erected on the side of the frame body in a traveling machine, is provided. The outer surface is formed of a sheet metal material whose longitudinal cross-sectional shape protrudes outward and is curved.
To connect the bolts at one place, at one of the connection points, the lower end of the column is directly applied to the maximum protruding point of the frame body to connect the bolts, and at the other connection point, the protrusion provided at the lower part of the frame body is connected. The point is that the lower end of the column is connected by bolts through the portion.

[0005]

According to the above construction, the frame body is made of a protruding and curved sheet metal material, so that it can be made relatively thin and strong even if it is made of a thin plate material that is wide in the vertical direction. Can be adjusted arbitrarily, and on the protruding outer surface of this high-strength sheet metal frame body,
It becomes possible to bolt the columns of the spare seedling stand with a relatively large vertical spacing in a vertically upright posture.

[0006]

Therefore, according to the present invention, the lower end of the column of the spare seedling stand is provided on the protruding curved lateral outer surface of the frame body having a large vertical width, relatively light weight, and high strength. It is possible to connect the bolts at the upper and lower two places with a relatively large interval to stand and fix the support of the spare seedling stand with high strength.

[0007]

Embodiments will be described below with reference to the drawings. FIG.
As shown in the figure, a seedling planting device 1 is connected to the rear part of the riding type traveling body so as to be able to move up and down, and the power of the engine 2 mounted on the front part of the body is transmitted to the transmission case 3 arranged at the rear part of the engine 2, The drive train is transmitted to the front and rear wheels 6 and 7 via the shaft 4 and the rear transmission case 5 to drive the vehicle, and a transmission system is configured to supply power to the seedling planting apparatus 1. A boarding operation unit 8 is provided above the middle part, and constitutes a riding type rice transplanter that performs seedling planting work while running the machine body.

The engine 2 is mounted and supported on a front frame 9 having a U-shape in a plan view, which is fixed and extended forward from the transmission case 3, and the upper part of the engine 2 is covered by a hood 10. On both sides, there are auxiliary lifting steps 12 which allow the passenger to get on and off the driving section steps 11 in the boarding driving section 8 from the front side of the fuselage.
Is provided. Further, on both the left and right sides of the bonnet 10, spare seedling stands 13 for storing spare seedlings are provided.

In the front part of the operation part step 11, a driving part which covers the outside of the driving part under the bonnet 10 and also serves as a frame supporting the auxiliary step 12 and the spare seedling stand 13 is provided. The cover 14 is connected. As shown in FIGS. 3 and 4, the driving part cover 14 is formed by combining a pair of sheet metal members 15a and 15b having a substantially U-shaped cross section and bent in a U-shape in plan view into upper and lower horizontal portions. At points h and h, a hollow box shape is formed by spot welding to increase rigidity, and a welded portion is prevented from appearing on the cover surface. The right and left rear ends of the driving unit cover 14 are connected and supported by a front bracket 16 of the driving unit step 11, and the front end of the driving unit cover 14 has a U-shaped bracket as shown in FIG. It is connected to and supported by the front frame 9 via a cable 17.

A laterally outer surface of the driving portion cover 14 made of sheet metal is bent outwardly, and the lower ends of the front and rear columns 18 of the spare seedling stand 13 are bolted to the projected and curved laterally outer surface. It is configured as follows. That is, as shown in FIGS. 1 and 2, each of the columns 18, 18 is connected by bolts at upper and lower portions, and the lower connection portion is set to the maximum protruding portion on the protruding curved lateral outer surface. ,And,
The upper connecting portion is set at a position lower than the maximum projecting portion of the driving portion cover 14. At the lower connection point, the boss-shaped projection 21 having the screw hole 20 formed thereon is welded and fixed to the inner surface side of the driving part cover 14, and at the upper connection point, the boss shape having the screw hole 30 formed therein is formed. The projections 31 are welded and fixed to the outer surface side of the driving unit cover 14 in an outwardly projecting state, and the projection height of the projections 31 is made equal to the height of the maximum projecting portion of the driving unit cover 14. Also, a square pipe-shaped support 1
8 are formed in the plate-shaped connecting member 23 which is welded and fixed to the inside of the machine at the lower end, and two upper and lower bolt insertion holes 24 and 25 are formed. The bolt 27 is inserted and fastened and fixed in a state where the bolt 27 is directly applied to the maximum projecting portion, and the bolt 27 is inserted while the connecting member 23 is applied to the tip of the protrusion 31 at the upper bolt connecting portion. It is designed to be tightened and fixed. Further, a cylindrical portion 26 externally fitted to the projection 31 is integrally fixed along a peripheral portion of the upper bolt insertion hole 24 on the inner side of the machine. By externally fitting the tubular portion 26 to the outer periphery, the weight of the column 18 is temporarily supported by the projection 31 so that the bolting operation can be performed easily and lightly without the need to support the weight of the column 18 by hand. ing.

As described above, the lower end of the column 18 is extended over the projection 31 provided on the lower outer surface of the driving portion cover 14 which projects laterally outward and curved, and the outer surface of the maximum projecting portion of the driving portion cover 14. By connecting the bolts, the support column 18 is fixed vertically upright. Further, as described above, on the side of the fuselage, the square pipe-shaped column 18 is provided on the outer side of the driving portion cover 14 which is a frame body having a sheet metal structure.
When a collision occurs with a ridge or the like, the rectangular pipe-shaped member having high rigidity comes in contact with
Can be protected.

In the claims of the utility model registration, reference numerals are written to facilitate comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is a cutaway front view of a column connecting portion.

FIG. 2 is a cutaway plan view of a column connecting portion.

FIG. 3 is a perspective view of a driving unit cover.

FIG. 4 is a sectional view of a driving unit cover.

FIG. 5 is a front view of a front end portion of a driving unit cover.

FIG. 6 is an overall side view of the rice transplanter.

[Explanation of symbols]

 13 Spare nursery stand 14 Frame body 18 Prop 31 Projection

Claims (1)

(57) [Scope of request for utility model registration] 1. A spare seedling support structure for a rice transplanter, wherein a support (18) of a spare seedling stand (13) is erected on a lateral side of a frame body (14) in a traveling machine body , wherein the frame body ( 14) The outer surface of the
Formed of a sheet metal protruded and curved toward
To connect the lower end of (18) with bolts at
At one connection point of the frame body (14)
Directly contact the lower end of the column (18)
And at the other connecting point, the frame body (14)
The lower end of the column (18) via the projection (21) provided at the location
Spare nursery stand support structure of rice transplanter that is configured to connect parts with bolts .