JPS62104504A - Walking type rice field working machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a walking paddy field working machine such as a rice transplanter, a seeding machine, or a fertilizer spreader.

[Prior art and problems to be solved by the invention]
Some of this type of walking-type paddy field work equipment have a bonnet that covers the front engine part that extends to the rear to protect each part, but these bonnets do not extend to working parts such as the planting part. Therefore, these working parts are not effectively protected during transportation, storage, etc., and there are drawbacks such as the operating mechanism colliding with other members and being damaged. This is especially true in the case of a rice transplanter, which has an operating mechanism such as a planting claw, and in order to protect this planting claw, it is necessary to protect the sides of the planting part with some kind of member. Therefore, it is proposed to protect the working parts by extending the bonnet to the rear, but in this case, if the bonnet is extended to the side of the operating mechanism of the working parts, the bonnet becomes too large. hand,
This is problematic not only because it interferes with various tasks such as inspections, but also because it increases the weight of the machine.

Means for Solving Problem C] The present invention was devised in view of the above-mentioned circumstances with the aim of providing a walk-behind paddy field work machine that can eliminate these drawbacks. A protective guide arranged to bypass the lower side of the work section at the rear from the engine section, and an auxiliary guide arranged above the protection guide and extended from the engine section to the front upper part of the work section are used to create a two-stage structure. In addition to configuring a guide structure, the rear parts of the upper and lower guides are connected by a connecting body to form a protective structure on the side of the operating mechanism of one working part.

With this configuration, the present invention enables the sides of the actuation mechanism to be reliably protected by a rigid protection structure consisting of two stages of upper and lower guides and a connecting body that connects the guides. be.

[Embodiments] Next, five embodiments of the present invention will be described based on the drawings. In the drawing, 1 is a rice transplanter that is a one-wheel walking type paddy field working machine, and the engine 2 and transmission 3 are located at the front of the machine.
．． a planting section (work section) 5 having a seedling stand 4 with a low front and high back;
It is composed of various parts such as a handle 6, left and right side floats 7, and a traveling wheel @8, and a chain case for driving the traveling axle 8 whose front end is pivotally supported to the transmission 3 so as to be able to swing vertically. 9 is placed on the left side of the vehicle @8. On the other hand, reference numeral 10 denotes a body frame that connects the engine section side at the front of the machine body and the working section 5 side at the rear, and in this embodiment, the rice transplanter 1 has a single frame structure consisting of this body frame 10 only.

Moreover, the body frame 10 is a transmission case that incorporates a power transmission mechanism that transmits power from the transmission 3 to the planting section 5 side by chain transmission, but this body frame, that is, the transmission frame t110 is As a result, the chain case 9 and the transmission frame 10 are arranged in substantially symmetrical positions across the running wheels 8, and the left-right balance of the aircraft is maintained. It is now guaranteed.

Meanwhile, a gear case 1 connected to the transmission frame 10
1 (disposed below the front of the seedling stand 4), an operating shaft 12 which is rotated by transmission of a chain built into the transmission frame 10 is rotatably supported.

The gear case 11 is provided with a pair of left and right transmission cases 13 around the running wheels 8 when viewed from the rear.
Planting claws 1 provided on the respective outsides of the transmission case 13
Power is transmitted to 4 by a chain transmission to perform the planting operation. In this embodiment, transmission cases 13 are arranged on both the left and right sides of the traveling vehicle @ 8, and furthermore, on the outside thereof, By arranging the planting claws 14, the transmission case 13 can be positioned as close to the center of the fuselage as possible, improving the balance of the fuselage, and in the case of a -shaft type, the mud carried around by the running wheels 8 can be reduced. The arrangement is made so that it does not scatter onto the planting nails 14 and adversely affect the planting operation.

Further, the operation @ 12 is chain-driven to a screw shaft 15 for lateral feeding of the seedling table placed on the west side of the seedling table 4. As this screw shaft 15 rotates in conjunction with the rotation of the operating shaft 12, the seedling platform 4 moves back and forth in the left and right direction, but the moving piece 16 and the seedling platform 4 are They are integrally connected by a connecting rod 17 extending forward from the seedling platform 4. Further, the first operating shaft 12 is provided with a vertical feed pawl 18, and the vertical feed pawl 18 moves the seedling table 4 at the timing when the seedling table 4 reaches the left and right horizontal movement end position. A pin claw 20 provided on the side of the seedling leaf receiver 19 so as to be swingable can be moved downward.

This pin claw 20 is interlocked and connected to a vertical feeder 22 provided on the back side of the seedling stand 4 via a link rod 21.
In conjunction with the downward movement of the pin claw 20, the vertical feeder 22 rotates intermittently by -pitch to vertically feed the planted seedlings placed on the seedling platform 4.

Therefore, the planting section 5 of the rice transplanter of this embodiment has the vertical feeder 22.
The other operating mechanisms except for are arranged in front of the seedling stand 4.

Further, 23 is a protection guide formed by a rod-like body, and the protection guide 23 is connected to the transmission 3.
The engine part including the running wheels 8, the chain case 10 and the transmission frame 11, which are distributed to the left and right, are extended from both the left and right to surround the outside of the chain case 10 and the transmission frame 11, and protect these components. The front end of the side float 7 is attached to the front part of the protection guide 23, and the rear part of the protection guide 23 is integrally attached to the base end of the handle 6 so as to bypass the lower part of the seedling stand 4. This forms a long protective guide structure that extends approximately the entire length of the fuselage from the handle 6 to the protective guide 23. On the other hand, above the protective guide 23, there is an auxiliary guide 2 formed of a rod-shaped body whose rear end is curved into a loop shape.
The auxiliary guide 24 has its front end attached to the engine 2 side, and its front and rear ends fixedly supported integrally with the protective guide 23 via connecting bodies 25 and 25a, respectively. As a result, the upper and lower auxiliary guides 24 and the lower protective guides 23 are integrated into one structure by the connecting body 25.25a. A protection structure that covers the running wheels 8 and their running drive mechanism on the left and right sides is made up of a side coupling body 25a and a two-stage upper and lower guide structure that is integrally made rigid by the coupling body 25a. are now more protected.

Further, the loop-shaped rear end portion of the auxiliary guide 24 is located above the uppermost one of the operating mechanisms of the planting section 5, and above the transverse feed mechanism 15a constituted by the screw shaft 15 and the like in the embodiment. In order to achieve this, the rear part is bent to be higher, and in this way, each of the operating mechanisms of the planting section 5 is sandwiched between the upper auxiliary guide 24 and the lower protection guide 23 from above and below. They are arranged in this way to protect them.

Further, 26 is a sensing float, and the sensing float 2
The hydraulic valve 27a is actuated by sensing the rice field 6, thereby causing the hydraulic cylinder 27 to expand and contract, thereby controlling the vertical swing of the chain case 9, so that the machine runs in a constant posture relative to the rice field. However, by arranging the hydraulic actuating mechanism such as the hydraulic cylinder 27 on the side of the chenoke case 9, consideration has been given to further improving the balance of the aircraft centering on the traveling wheels 8. In an embodiment of the invention.

The work of planting seedlings in the paddy field is carried out by the seedling planting operation of the planting claw 14 in synchronization with the running of the running wheels 8, but the planting section 5 that performs these planting operations is Since both the left and right sides are reliably protected, it is possible to prevent damage to these operating mechanisms during storage or transportation.

That is, in the present invention, the planting section 5 has two upper and lower guides 23 extending rearward from both left and right sides of the engine section, etc.
．． 24 and a rear connecting body 25a that connects both guides 23 and 24, the outer sides of the left and right sides are protected by an integrally rigid protection structure. Therefore, even if the planting pawl 14 is provided on the outside of the transmission case 13 as in the embodiment and configured so that the planting pawl 14 is directly exposed from the side, it is not possible to reliably protect the planting pawl 14. Therefore, other operating mechanisms including the planting claw 14 will not be damaged due to interference from outside the machine.

These members can be reliably protected during transportation and storage, and inconveniences such as damage to the operating mechanism can be prevented as much as possible. Moreover, the protective structure on the side of this operating mechanism is
A two-stage upper and lower guide 23 and 24 extending from the engine side,
This can be achieved by an extremely simple frame structure that is integrally made rigid by the connecting body 25a that connects the parts, so even though the sides of the planting nail 14 can be protected,
It's lightweight and doesn't get in the way.

[Operations and Effects] In summary, since the present invention is constructed as described above, the side of the operating mechanism in the working section has two upper and lower guides extending from the engine side and a connection that integrally connects the guides. The device is reliably protected by a protective structure that is made flexible by the body, and therefore, the inconvenience of the operating mechanism interfering with other parts and being damaged during transportation or storage can be reliably prevented. I can do it. Moreover, this protective structure can be constructed with an extremely simple frame structure consisting of upper and lower guides and a connecting body that connects them, so even if it protects the sides of the operating mechanism, the structure does not become particularly complicated. There is no need to worry about any problems, and it will not interfere with work such as inspections.

[Brief explanation of drawings]

The drawings show an embodiment of the walking rice paddy work machine according to the present invention, in which Fig. 1 is an overall side view of the rice transplanter, Fig. 2 is a plan view of the same, and Fig. 3 is a guide structure. Side view, 4th
The figure is a plan view of the same as above, FIG. 5 is a developed view of the operating mechanism in the planting section, and FIG. 6 is a rear sectional view of the rice transplanter. In the figure, 1 is a rice transplanter, 2 is an engine, 4 is a seedling stand, 5 is a planting section, 8 is a running wheel, 23 is a protection guide, 24 is an auxiliary guide, and 25a is a connecting body.

Claims (1)

[Claims] A protective guide is arranged to bypass the front engine part and the lower side of the work part at the rear, and an auxiliary guide is arranged above the protection guide and extends from the engine part to the front upper part of the work part. A walking paddy field work machine comprising a two-stage guide structure, and the rear parts of the upper and lower guides are connected and integrated by a connecting body to form a protective structure on the side of the operating mechanism of the working part. .