JP3422844B2 - Arrangement structure of inter-stock shift lever in planting machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for disposing a stock shift lever in a riding type planting machine provided with a stock shift mechanism.

[0002]

2. Description of the Related Art Generally, in the planting power transmission path of this type of riding type planting machine, as shown in Japanese Utility Model Laid-Open No. 4-94918, the planting power is changed based on the speed change. An inter-plant speed change mechanism that adjusts the planted plants is provided. However, in the past, the inter-stock gear shift lever for operating the inter-stock gear shifting mechanism was arranged below the driver's floor of the aircraft, so when performing the inter-stock adjustment, the operator descends from the aircraft each time the operation is performed and Operability became a problem because it was necessary to operate the lever. Therefore, it is proposed to arrange the stock shift lever near the driver's seat to improve the operability. In this case, the stock shift lever presses the living space of the operator, and There is a risk that it will block the habitability and the ease of getting on and off.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an arrangement structure for a stock shift lever in a planting machine which can eliminate these drawbacks in view of the above-mentioned circumstances. A plurality of transmission mechanisms 24 and 27 for adjusting the planting stock by shifting the planting power to the transmission system of the planting power are installed in the transformer.
In front of the traveling body 1 in the one installed in the mission 3.
The transmission 3 is installed in the
The operation tool is assembled at the front position of the flat floor 7 in front of the transfer seat 6.
The cover body 8 to be inserted is provided, and the transmission mechanism 24, 27 is provided.
Auxiliary speed change operation lever 38 of the strain between a regulatory you manipulate the main transmission
Move the operating lever 39 to the rear of the cover body 8 near the driver's seat 6.
And the main speed change lever 39 is behind the auxiliary speed change lever 38.
Each transmission mechanism 2 is provided so as to project so as to be in a position.
The shifter pins 33 and 34 for actuating
The speed lever 38 and the main shift lever 39 are connected to lower swing ends of the main shift lever 39 .

Further, in addition to the above characteristics, the present invention has a second characteristic in that the operating levers 38, 39 are a long main transmission lever 39 and a short auxiliary transmission lever 38.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, one embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a traveling machine body of a riding type rice transplanter. An engine and a transmission 3 are mounted on a front portion of the traveling machine body 1, and a rear body of the traveling machine body is planted via a lifting link mechanism 4. The working unit 5 is connected to be movable up and down. Then, the planting work unit 5 is planted by the planting power transmitted from the engine 2 via the transmission 3, and the shifting of the planting power is
By adjusting the rotational speed of the rotary type planting claw 9, the distance between the planting plants is adjusted, and the basic configuration of each plant is the same as the conventional one.

Reference numeral 6 denotes a driver's seat arranged in the traveling machine body 1. A flat floor portion (step) 7 is formed in front of and below the driver's seat 6 so as to connect to left and right passengers. before further side position of the floor section 7, the cover body 8 in which various operation tool is incorporated it is disposed in a rising form.

As shown in FIG. 2, the transmission 3 is rotatably supported by an input shaft 12 from an engine with a main clutch 11, and the driving force is first equipped with a main transmission 13 and an auxiliary transmission 14 for traveling. It is transmitted to the front wheel drive shaft 19 via the traveling speed change shaft 16 and the intermediate shaft 17 and the front wheel differential mechanism 18. Reference numeral 21 denotes a turning transmission mechanism for the front wheel drive shaft 19, which is used when the vehicle body turns. Further, on the rear downstream side of the transmission 3, a rear transmission PTO for relaying the above-mentioned drive input is provided.
A shaft 23 is provided.

In contrast to the traveling transmission system described above, in the transmission 3, the planted transmission system branched from the input shaft 12 meshes with the input shaft 12 via a planted subtransmission device 24 capable of two-stage switching. And a main transmission shaft 28 that meshes with the sub-transmission shaft 26 via a planted main transmission 27 that can be switched between three stages. The main transmission shaft 28 has a planted transmission PTO.
The shaft 29 meshes. 30 is a torque limiter for planting.

The sub transmission 24 and the main transmission 27 are slid by shifters 31 and 32 in the transmission 3, respectively, and the shifters 31 and 32 slide in the transmission 3 in the axial direction as shown in FIGS. It is slid integrally with the shifter pins 33 and 34 which are freely supported. And the shifter pins 33 and 34 are 2
The sub-shift lever 38 and the main shift lever 39, which are swingably supported by the respective lever shafts 36 and 37, are connected to lower swing ends of the main shift lever 39.
A total of 6 gear shift operations are performed for each gear.

As for the levers 38 and 39, as shown in the figure, the main shift lever 39, which is frequently used, is formed longer than the sub shift lever 38, and a cover in front of the driver's seat 6 is provided. The amount of protrusion from the rear of the body 8 is also determined by the main transmission lever 3
9 is longer and protrudes to the rear position (position closer to the driver's seat and the operator position).

With the above construction, the operability of the main shift lever 39, which is frequently used, is improved, erroneous operations of the main shift and the sub shift are prevented, and the precision of the operation is ensured. In particular, it is possible for the operator to accurately check the distance between the stocks by visually distinguishing between the transmissions and by operating feeling and by checking the tilted posture.

[0012]

Since the present invention is constructed as described above,
The operator can easily and accurately perform the stock shift operation while operating the planting machine, and since the gear shift state of the operating lever can be visually confirmed, it is easy to check the stock and the lever operation feeling is also accurate.

Further, since the main shift lever, which is frequently used, is long and is provided at a position close to the operator, operability is good.

[Brief description of drawings]

FIG. 1 is an overall side view of a riding rice transplanter embodying the present invention.

FIG. 2 is likewise an overall plan sectional view of the transmission.

FIG. 3 is a front sectional view of a transmission sub-gear shift portion of the transmission.

FIG. 4 is a front cross-sectional view of a planted main transmission portion of the transmission.

FIG. 5 is a side cross-sectional view of a transmission portion with gears of a transmission.

[Explanation of symbols]

3 transmission 6 driver's seat 24 Sub transmission (transmission mechanism) 27 Main transmission (transmission mechanism) 38 Sub gear shift operation lever 39 Main shift operation lever

Claims (2)

(57) [Claims] 1. A plurality of speed change mechanisms (24), (27) for adjusting planting power by shifting planting power to a planting power transmission system.
In the one provided in the transmission (3) ,
The transmission (3) is provided at the front of the traveling body (1).
And a flat floor in front of the driver's seat (6)
A cover body in which an operation tool is incorporated in the front position of (7)
(8) disposed to said speed change mechanism (24), a main transmission sub transmission lever for adjusting between (27) you manipulate the strain (38)
The operation lever (39) is provided with the cover near the driver's seat (6).
Main change from the rear of the body (8) and from the auxiliary transmission lever (38)
Install the speed lever (39) so that it is in the rear position.
In order to operate the transmission mechanisms (24) and (27),
The cover pins (33) and (34) are connected to the auxiliary shift lever (3
8) and the structure for arranging the stock shift lever in the planting machine, which is connected to the lower swing end of the main shift lever (39) . 2. The inter-plant speed change lever of the planting machine according to claim 1, wherein the operation levers (38), (39) are a long size main speed change lever (39) and a short size auxiliary speed change lever (38). Arrangement structure.