JPH0716331B2 - Floor of passenger paddy farming machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a floor of a riding paddy farm work machine such as a rice transplanter in which a work device is mounted on a rear portion of a machine body.

(Prior Art) The floor of a conventional rice transplanter is provided only on the front side of the cockpit, and its rear edge is substantially linear.

(Problems to be Solved by the Invention) However, the above conventional rice transplanters have a problem that it is difficult to replenish seedlings to a seedling tank or an auxiliary seedling table provided at a rear position of a cockpit. there were.

(Means for Solving Problems) In order to solve the above problems, the present invention has the following configuration. That is, the floor of the riding paddy farm work machine according to the present invention is a floor of the riding paddy farm work machine in which a working device is mounted via a link device that moves up and down at the rear of the machine body, and is located above the base of the link device. It is characterized in that the central portion located is formed in a concave shape opened rearward in a plan view, and both left and right side portions of the concave portion are formed so as to project rearward from the base portion of the link device.

(Operation) Since the base portion of the link device that moves up and down is provided below the recess formed in the center of the rear end of the floor, interference with the floor is prevented when the link device is raised. Further, since both side portions of the recess are projected rearward, it is easy to perform replenishment work or the like on the working machine side.

(Example) FIG. 1 is a side view of an example of a riding paddy agricultural working machine having a floor according to the present invention, FIG. 2 is a plan view thereof, and FIG.
The figure is a perspective view of the main part thereof, and is configured as a riding rice transplanter equipped with a rice transplanter and an auxiliary seedling tank as a working device. This agricultural work machine 1 has a mission case 3 at the lower center of the base body 2, and the mission case 3
Shafts 5 and 6 project from the front and back. The front wheels 7, 7 and the rear wheels 8, 8 are rotationally driven by the power transmitted via the shafts 5, 6. An engine base 10 is provided at the front of the base body 2, and an engine is installed on the engine base 10. The engine is covered by the hood 11. On the rear side of the bonnet 11 is a dashboard 14 with a handle 12 and various instruments,
A cockpit 15 is provided behind the dashboard 14 at intervals.

Around the cockpit 15 and on both sides of the hood 11, there is a flat floor 17, which has side edges 18,18.
And is surrounded by the rear edging 19. The side edge 18 is low at the front end of the floor 17 and is linearly higher toward the rear. An outer surface portion 20 of the side standing edge 18 is provided with a fender 22 that covers the upper portions of the front wheels 7, 7. The middle part of the side edge 18 is separated from the front part and the rear part so that the door 24 can be opened and closed freely.
It has become. Cuts 23,2 before and after separating the part of the door 24
3'is formed in a bent shape that is key-shaped in a plan view. As shown in FIGS. 4 (a) and 4 (b), the structure of the mounting portion of the door 24 is such that a step 25 is provided at the side end of the floor 17, and a hinge fixed to the outer end of the step 25. At 26, the lower end of the door 24 is attached. Therefore, the door 24 is rotatably attached by the hinge 26 in the direction in which the upper portion falls outward, and the convex portion 27 provided at the lower end portion of the door 24 abuts the outer surface portion 20. At 24 the door 24 is kept horizontal. The door 24, which is horizontal in the open state, can be used as a step. The lock of the door 24 is obtained by engaging a rotatable hook 28 provided at an inner front end portion of the door 24 with an engaging tool 29 provided at a front portion 18a of the side edge 18 adjacent to the hook 28. It is done by combining. A rear side portion 18b of the side standing edge 18 following the door 24 is formed to be slightly wider than the front side portion, and the upper portion of the rear wheel 8 is inserted into this portion.

In addition, the rear standing edge 19 is formed in a shape in which the central portion projects forward, so that the rear portion of the floor 17 in the cockpit is concave in plan view. The recess 31 formed at the center of the rear standing edge 19 is used as a space for disposing a link device that connects the working devices. That is, a frame 32 is provided inside the recess 31, and the front ends of one upper link 34 and two lower links 35, 35 are rotatably pivoted to the frame 32. . The links 34, 35, 35 are provided in parallel with each other, and their rear ends are attached to the connecting frame 36. Further, the upper link 34 is connected to a piston rod of a hydraulic cylinder 38 which is pivotally attached to the lower rear portion of the machine body. If this hydraulic cylinder 38 is extended, the above-mentioned vertical links 34, 35,
A parallel link device 39 composed of 35 and a connecting frame 36 is swung upward as a whole.

Next, in the illustrated example, the parallel link device 39 is connected to the rice transplant device.
41 is installed as a working device. The rice planting device 41 is provided with a seedling tank 43 that is inclined above the transmission case 42 that also serves as a rice transplanter frame so that the front side is in a higher position, and a planting claw 45a is provided at the tip end, drawing an elliptical orbit. It is equipped with a planting rod 45 that moves up and down to take out one seedling from the nursery placed on the seedling tank 43 and plant it in the field. Below the transmission case 42, one center float 46 and a pair of left and right side floats 47, 47 are pivotally mounted so as to be vertically rotatable. A hydraulic valve 49 for detecting vertical movement is provided at the front part of the center float 46, and when the float moves upward, the hydraulic cylinder 38 is extended to lift the rice transplanter 41,
When the float moves downward, the hydraulic cylinder 38 is contracted to lower the rice transplanter 41. Rice transplanter 41
Is attached by rotatably connecting the front end portion of the transmission case 42 to the lower end portion of the connecting frame 36, and is pulled by the traveling of the agricultural work machine 1, and the power of the rice transplanter 41 is a PTO shaft (not shown). Is transmitted from the farm work machine 1.

Further, in the illustrated example, an auxiliary seedling tank 51 for holding spare seedlings is installed behind the cockpit 15. Auxiliary seedling tank 51
Is supported by bendable front columns 52, 52 standing upright on the rear end of the floor 17, and a retractable rear column (hydraulic cylinder) 54 whose lower end is attached to the upper end of the frame 32. Has been done. The rear support column 54 extends upward through the recess 31.

As described above, the agricultural working machine 1 is provided with the side standing edges 18, 18 and the rear standing edge 19 at the side end portion and the rear end portion, and the inside thereof is the floor 17. By forming the rear portion of the cockpit 15 in a concave shape so that the central portion of the rear standing edge 19 projects toward the front side, the inside of the recess 31 formed in the central portion of the rear standing edge is used as a mounting portion for the working device. As a result, the portions 17a, 17a on both sides of the recess 31 can be used as the floor to extend backward. Since the floor is provided around the cockpit 15, loading and unloading of luggage is easy. Further, since both rear end wing parts 17a, 17a of the floor 17 are projected rearward, it is easy to supply seedlings to the seedling tank 43 and the auxiliary seedling tank 51 of the rice transplanter 41. Furthermore, the farm work machine 1 in the illustrated example
Since both sides 17b, 17b of the bonnet 11 are floors and no standing edge is provided on the front surface, it is possible to board from the front of the machine body if necessary. In this case, the side edges
Since the front part of the front end portion 18a of 18 is formed low, it does not interfere with carrying luggage or the like. For an agricultural work machine used in muddy water, being able to board from the front of the machine body is practically convenient because it reduces unnecessary footing in muddy water. In the above description, a rice transplanter was used as an example, but the same effect can be obtained with a seeder, a fertilizer applicator, and the like.

(Effects of the Invention) As is clear from the above description, the floor of the riding paddy agricultural work machine according to the present invention is provided with a portion formed in a concave shape in a plan view at the rear of the cockpit to raise and lower the working device. The floor area can be increased without any hindrance, and workability can be improved.

[Brief description of drawings]

FIG. 1 is a side view showing a usage state of a riding paddy agricultural working machine having a floor according to the present invention, and FIG. 2 is a plan view thereof.
FIG. 3 and FIG. 5 are perspective views of the main part, and FIGS. 4 (a) and 4 (b) are explanatory views of the door mounting part. Each of the drawings shows an embodiment of the present invention. 1 ... Farm work machine, 2 ... Base, 7 ... Front wheel, 8 ... Rear wheel, 11 ... Bonnet, 15 ... Pilot seat, 17 ... Floor,
18 …… side edging, 19 …… rear edging, 24 …… door, 31 ……
Recess, 39 …… Parallel link device, 41 …… Rice planting device, 43 ……
Seedling tank, 51 ... Auxiliary seedling tank

Claims (1)

[Claims] 1. A floor of a riding paddy agricultural work machine in which a working device is mounted on a rear portion of a machine body through a link device that moves up and down, and a central portion located above a base portion of the link device is rearward in a plan view. A floor of a riding paddy farm work machine, which is formed in an open concave shape, and both left and right side portions of the concave portion are formed to project rearward from a base portion of the link device.