JPH0227909A - Rice transplanter - Google Patents

Abstract

PURPOSE:To enable inside arrangement of fertilizer application pipes or furrowers and simultaneously facilitate assembling of a levee clutch by arranging a main frame between both left and right suspending parts of a planting part frame formed into a portal shape. CONSTITUTION:In a walking type rice transplanter, a planting part frame 10 is formed into a portal shape by suspending suspending parts 21 having planters 22 at the lower ends thereof at the left and right of a cylindrical part 20. A main frame 9 of a travel machine body placed in the front and back is arranged between both the suspending parts 21 and 21. Thereby, fertilizer application pipes 46 of a fertilizer applicator 42 and furrowers 48 can be arranged between both the suspending parts without exposure thereof to the lateral sides of the machine body. Furthermore, since the respective planters 22 are separately mounted on the respective suspending parts 21, assembling of a levee clutch is readily carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention [Industrial Application Fields] The present invention mainly relates to the structure of a machine frame in a walk-behind rice transplanter for planting in two rows.

[Prior art] A main frame is provided behind the transmission case of the traveling section located at the front of the aircraft, a planting section is attached to this, and a fertilization device is installed between the traveling section and the planting section. There is a walking type rice transplanter that does this.

For example, the planting section of a two-row rice transplanter has a box-shaped planting section frame fixed to the upper side of the main frame, and planting devices are attached to both sides of the planting section frame.

[Problem to be solved by the invention] For this reason, in the conventional two-row rice transplanter, the fertilizing pipe and furrowing device of the fertilizing device are installed outside of the planting device, resulting in a horizontally bulky structure. Ta.

In addition, the ridge clutch for stopping the planting device when working on the ridge must be built into the planting section frame together with other power transmission shafts, gears, etc. The structure inside the frame was complicated.

Configuration of the Invention [Means for Solving the Problems] In order to solve the above problems, the present invention was constructed as follows.

That is, the rice transplanter according to the present invention includes a main frame of a traveling body provided at the front and rear, a planting part frame that incorporates a transmission mechanism of a planting work part, and a planting device for planting seedlings in a field, The planting section frame is formed into a circular shape in front view with a pair of left and right hanging parts hanging from a left and right horizontal cylindrical part, and the planting device is attached to the lower end of the hanging parts, and
It is characterized in that the main frame is arranged between the left and right raindrop parts.

[Function] Since the fertilizing pipe and the groove-making device can be provided between the main frame and the planting device, these are not exposed to the outside and the plant is compact. Furthermore, since the left and right planting devices are individually attached to the pair of hanging parts, it is possible to incorporate a ridge clutch into each hanging part, and it is easy to assemble the ridge clutch.

[Example] The walking type rice transplanter shown in FIGS. 1 to 4 is an example of the present invention, and this rice transplanter 1 has a running machine body 6 equipped with a cushion case 2, an engine 3, a hydraulic unit 4, etc. Rotating cover tubes 5, 5 protruding from both left and right sides of the mission case 2
A transmission case 6.6 is provided at the end of the transmission case 6.6 facing rearward so as to be able to rotate up and down, and paddy wheels 7, 7, which are ground wheels for supporting the traveling body, are attached to the rear end of the transmission case 6.6. There is.

A main frame 9 is fixedly connected to the rear part of the mission case 2 at its base side. This main frame 9
extends rearward through the lower part of the fuselage, then curves upward in the middle, with the rear part jumping up diagonally. A planting section frame 10 is fixedly provided at a position slightly in front of the curved section. Further, along the oblique rear part, a seedling stand 14 is supported by a support frame 12 and rails 13 so as to be slidable left and right. A handle rod 15 is fixed to the rear end of the main frame 9.

The planting part frame 10 consists of a cylindrical part 20 horizontally installed on a support stand 18 fixed to the main frame 9, and a hanging part 21.21 electrically installed. As shown in Fig. 3, it is formed into a gate shape when viewed from the rear (also viewed from the top in 1), and the main frame 9 is disposed in the hollow part.
A planting device 22.22 is attached to the inside of the lower end of the hanging part 21.21. Rotational power is transmitted to the cylindrical portion 20 by a transmission shaft 24 taken out from the transmission case 2, and the planting device 22 is driven by a chino 25 stretched within the hanging portion 21. When the planting device 22 is driven, the planting claw 26a provided at the tip of the planting rod 26 moves up and down in a predetermined trajectory, and the seedlings supplied to the seedling outlet 14a of the seedling stand 14 are removed. The fourth step is to plant the seeds in the field.
As shown in the figure, a ridge clutch 28 is attached to the lower end of the hanging portion 21.
is built-in, and power transmission to the planting device 22 can be switched on and off. The operating lever 29 is connected to the hanging portion 21
along the outer surface of the Further, a drive device for the seedling stand is provided in the cylindrical part 20, which reciprocates the seedling stand 14 from side to side and transfers the seedlings on the stand one row at a time in the direction of the seedling outlet 14a. It is supposed to be done.

In some cases, as shown by the chain line in Fig. 3, a planting device may also be attached to the outside of the hanging part 21.
It can also be configured as a rice transplanter for row planting or Ikeda row planting. Alternatively, as shown in FIG. 5, the spacing between the left and right hanging parts 21.21 of the planting section frame may be narrowed, and a planting device 22.22 may be provided outside each hanging part.

A float 32 is pivotally attached to the lower side of the fuselage by a support shaft 33 installed horizontally at the rear of the fuselage so as to be rotatable up and down.

The front part of the float 32 is elastically supported by an expansion/contraction link 34. A detection rod 36 for detecting the height of the field is attached to the float 32. Based on the detection result of this rod, a hydraulic cylinder 37 for lifting and lowering the aircraft expands and contracts, thereby increasing the height of the wheels 7, 7 on both sides. move up and down at the same time to raise and lower the aircraft. In addition, a pendulum-type left and right tilt detection sensor 38 is installed on the side of the hydraulic unit 4.
is provided, and based on the detection result of this sensor, a hydraulic cylinder 39 for horizontal control performs an expansion/contraction differential, and vertical movement control is performed only for the wheel 7 on the side where this cylinder is provided (the right side in the illustrated example). This keeps the aircraft level at all times.

Further, a fertilizer application device 42 is supported by a support member 41 attached to the planting section frame 10 at the front and rear intermediate portions of the machine body. The fertilizer application device 42 is fixedly attached to a fertilizer tank 44 common to each left and right row, a pair of left and right feeding devices 45, a fertilization pipe 46 connected to the lower part of the feeding device, and a float 32, which constitute the main body. It consists of a groover 48. Due to the action of the link mechanism 49, a feed roll in the feed device 45 rotates in synchronization with the operation of the planting device 22, and a predetermined amount of granular fertilizer in the tank 44 is fed into the fertilization pipe 46. The fertilizer fed into the pipe 46 is dropped into the groove formed by the groove cutter 48. Since the fertilization pipe 46 is disposed between the main frame 9 and the hanging part 21 when viewed from the rear, it is not exposed on the side of the aircraft body, making it compact and having a neat appearance. Moreover, since the fertilizing pipe 46 is provided diagonally rearward and the furrower 48 is provided near the planting device 22 when viewed from the side, the area of the notch 32a of the float is small.

[Effect of the invention] As explained above, the rice transplanter according to the present invention has the following effects:
By forming the planting section frame into a gate shape when viewed from the front and arranging the main frame in the hollow part, planting equipment and fertilization equipment can be arranged rationally and effectively, and the structure is simple. It is now possible to make it compact.

[Brief explanation of the drawing]

Fig. 1 is a side view of a walking rice transplanter which is an embodiment of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a rear view thereof, Fig. 4 is a sectional view of the main parts, and Fig. 5 is a rear view of a different embodiment. DESCRIPTION OF SYMBOLS 1... Walking type rice transplanter, 7... Paddy field wheels, 9... Main frame, lO... Planting part frame, 20...
Cylindrical part, 21... Drooping part, 22... Planting device, 28.
...Round clutch, 32...Float, 42...Fertilizer, 48...Grooving device. 11-3 Figure 4 Figure 5

Claims (1)

[Claims] (1) The main frame of the traveling machine provided at the front and rear, the planting section frame that houses the transmission mechanism of the planting work section, and the planting device for planting seedlings in the field, and the planting section frames are arranged on the left and right sides. It is formed in a gate shape in front view with a pair of left and right hanging parts hanging from a horizontal cylinder part, the planting device is attached to the lower end of the hanging parts, and the main frame is arranged between the left and right hanging parts. A rice transplanter characterized by: