JPS62104503A - 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 [Field of Industrial Application] The present invention relates to walking-type paddy field working machines such as rice transplanters, seeding machines, or fertilizer spreaders.

[Prior art and problems to be solved by the invention] Conventionally,
Some of this type of walk-behind rice paddy work machines have a front engine part that is jffL'! There are some types of bonnets that extend to the rear to protect various parts, but these bonnets do not protect the operating mechanisms of working parts such as the planting part, and for this reason, they cannot be used during transportation or other operations. These operating mechanisms are not effectively protected during storage, etc., and as a result, there are drawbacks such as the operating mechanisms colliding with other members and being damaged.

Therefore, it has been proposed to extend the bonnet to the rear to cover these operating mechanisms, but in this case, the overall length of the bonnet becomes too long and becomes a hindrance to various operations. However, there are drawbacks such as the fact that the operating status of the operating mechanism, such as the planting operation, cannot be confirmed.

[Means for Solving the Problems] In view of the above-mentioned circumstances, the present invention was devised for the purpose of providing a walking type paddy field work machine that can eliminate these drawbacks. The protective guide is arranged to bypass the lower part of the working part at the rear from the engine part, and the auxiliary guide is arranged above the protective kite and extends from the engine part to the front upper part of the working part. The present invention is characterized in that it has a guide structure, and an operating mechanism for a working part is disposed between the upper and lower guides.

According to the present invention, with this configuration, the upper and lower sides of the operating mechanism in the working section can be reliably protected simply by the two-stage guide structure disposed above and below.

[Example] Next, an example 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 a high back;
It is composed of various parts such as a handle 6, left and right side floats 7, and a traveling vehicle @8, and the chain for driving the traveling vehicle @8 whose front end is pivotally supported to the transmission 3 so as to be able to swing vertically. The case 9 is arranged on the left side of the running wheel 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 IO.

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 means of a chain transmission. The chain case 9 and the transmission frame 10 are arranged in substantially symmetrical positions with the running wheels 8 in between.
This ensures that the left and right balance of the aircraft is maintained.

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
4, power is transmitted through a chain transmission, and the planting operation is performed. In this embodiment, the transmission case 13 is arranged on both the left and right sides of the running wheels 8, and the planting claws 14 are arranged on the outside of the transmission case 13, so that the transmission case 13 is positioned as close to the center of the fuselage as possible. In addition, in the case of the -shaft type, the arrangement is such that mud carried around by the running wheels 8 does not splash onto the planting claws 14 and adversely affect the planting operation. It is company-owned.

Furthermore, the operating shaft 12 is chain-driven to a screw shaft 15 for lateral feeding of the seedling table placed in front of the seedling table 4. Then, as this screw shaft 15 rotates in conjunction with the rotation of the operating shaft 120, +W J'U base 4
will move back and forth in the left and right direction, but the moving piece 1
6 and the seedling platform 4 are integrally connected by a connecting rod 17 extending forward from the seedling platform 4. Further, the operating shaft 12 is provided with a vertical feed pawl 18, and the vertical feed pawl 18 moves the seedling table 4 in synchronization with 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 immobility of the pin claw 20, the vertical feeder 22 rotates intermittently by a -pitch, thereby vertically feeding 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-shaped body, and the protection guide 23 is a chain case distributed to the left and right with the engine part including the above-mentioned 1 to lance transmission 3, and the running wheel 8 as the center. 9 and the outside of the transmission frame 10 from both left and right sides to protect each of these members.The front end of the side float 7 is attached to the front of the protection guide 23. In addition, the rear part of the protection guide 23 is integrally fixed to the base end of the handle 6 so as to bypass the lower part of the seedling stand 4. A long protective guide structure extending over the entire length is formed6. On the other hand, above this protective guide 23, an auxiliary guide 24 consisting of a rod-shaped body whose rear end is curved into a loop shape is arranged. The auxiliary guide 24 has a front end attached to the engine 2 section side, and a front and rear end attached to the connecting body 25.
By being integrally supported and held by the protective guide 23 via the protective guide 25a, the bonnet that covers the engine 2 has a protective structure in which only the left and right edges are extended rearward. The guide 24 and the lower protective guide 23 form a protective guide structure including the traveling wheels 8 and their traveling drive mechanism, which are upper and lower and have two stages. Moreover, the loop-shaped rear end portion of the auxiliary guide 24 is the uppermost one of the operating mechanisms of the planting section 5;
In the embodiment, the rear side is bent to be higher so that the upper part of the transverse feed mechanism 15a constituted by the screw shaft 15 etc. can be seen, and in this way, the upper auxiliary guide 24
The operating mechanisms of the planting section 5 are disposed between the lower protection guide 23 and the lower protection guide 23 so as to be sandwiched from above and below, so as to protect them. Further, the planting claws 14 arranged on the left and right sides of the operating mechanism, particularly on the outside of the transmission case 13, are protected even in the range of their planting movement locus by the protection guide 23 and the rear connecting body 25a.

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 machine centering on the traveling vehicle @8.

In the embodiment of the present invention configured as described above, the seedling planting operation in the paddy field is carried out by the seedling planting operation of the planting claw 14 that is timed with the running of the traveling wheels 8. Each operating mechanism of the planting section 5 that performs the planting operation is as follows:
Since its upper and lower sides are sandwiched and protected by the protective guide 23 and the auxiliary guide 24, it is possible to reliably prevent damage to these operating mechanisms during storage or transportation.

That is, in the present invention, the operating mechanism of the planting section 5 is provided by the protection guide 2 that protects the lower side and the left and right sides of the engine section, etc.
3 extends to the rear, and is provided so as to bypass the lower part of the seedling stand 4, so that the planting nail 14 is protected, and the upper side is arranged above the protection guide 23. It will be protected by the rear end of the auxiliary guide 24, and therefore, the operating mechanism of the planting section 5 is accommodated between the upper and lower sides by the upper and lower two-stage guide structure formed by the protective guide 23 and the auxiliary guide 24. As a result, these actuating mechanisms are protected effectively during transportation and storage, and damage to the actuating mechanisms can be prevented as much as possible. Become. Moreover, in this two-stage upper and lower protection guide structure, the lower protection guide 23 is constructed by extending the member that protects the left and right sides of the engine section so as to bypass the lower side of the seedling stand. In addition, the upper auxiliary guide 24 may have a simple rod structure in which only the left and right edges of the engine bonnet are extended rearward. There are no problems, there is no possibility that the operating status of the operating mechanism cannot be confirmed, and there is no possibility that these will interfere with various operations. Since the invention is configured as described above, the operating mechanism in the working section is protected by being sandwiched from the upper and lower image sides by the two-stage guide structure consisting of the upper auxiliary guide and the lower protective guide. become,
Therefore, it is possible to reliably prevent inconveniences such as each member of the operating mechanism colliding with other members and being damaged during transportation or storage. Moreover, this two-stage guide structure
Since it can be configured with an extremely simple rod structure in which the guide that protects the engine part is extended rearward as it is, the structure does not become particularly complicated even if the operating mechanism is protected from above and below, and the auxiliary guide There is no possibility that the operation of the operating mechanism cannot be confirmed due to the protection of the upper side, and there is no possibility that it will interfere with work such as inspection.

[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, and 24 is an auxiliary guide. Figure 5

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 type paddy field working machine comprising a two-stage guide structure, and an operating mechanism of a working part is arranged between the upper and lower guides.