JPH09248024A - Farm working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that since a conventional farm working machine has a heavy working machine mounted on the rear part of a machine body, the front-rear directional weight balance is apt to be on the rear side. SOLUTION: This farm working machine, which has the working machine mounted on the rear part of a travel vehicle body equipped with a couple of right and left front wheels and a couple of right and left rear wheels and is provided with a steering wheel for steering the front wheels in front of the travel vehicle body, has a transmission case 11 arranged at the front part of the travel vehicle body and is provided with plural power transmission shafts 22, 84, 105, 108, and 111 whose axes face to the right and left in the transmission case. A steering shaft 130 which is rotated by the rotating operation of the steering wheel is inserted into the case 11 from above the transmission case 11 and extended toward the bottom part in the case 11, and the steering shaft 130 is arranged behind the power transmission shaft 22, whose axis faces to the right and left, at the foremost position in the transmission case.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a riding type transplanter having a rearing machine for planting seedlings, and an agricultural working machine such as a rotary cultivator or an agricultural tractor having a chemical sprayer mounted at the rear. Belongs to the technical field of.

[0002]

2. Description of the Related Art Conventionally, as disclosed in Japanese Unexamined Patent Publication No. 6-321129, a working machine is mounted on the rear portion of a traveling vehicle body having a pair of left and right front wheels and a pair of left and right rear wheels. There is an agricultural working machine provided with a steering handle for steering the front wheels. In this agricultural work machine, a mission case is arranged in the front part of the traveling vehicle body, and a plurality of power transmission shafts for transmitting power whose axial center points in the left-right direction are provided in the mission case, and the steering handle is provided. The steering shaft which is rotated by the rotating operation of the above is inserted into the case from the upper part of the mission case and extends toward the bottom part inside the case, and the steering shaft is arranged inside the mission case. It is arranged by using the space near the front wall.

[0003]

Conventionally, an agricultural work machine in which a heavy work machine is mounted on the rear part of the machine body has a problem that the weight balance in the front-rear direction becomes closer to the rear side. This problem is caused by reducing the weight of the machine body. The more they do, the more prominent the tendency becomes. Therefore, in the above-mentioned conventional machine, the steering shaft is inserted in the mission case. Therefore, the mission case is positioned so that the front end position of the mission case is in front of the position of the steering shaft. The weight balance in the front-back direction is improved. However, in this conventional machine, the steering shaft can be inserted into the mission case by utilizing the space near the front wall in the mission case. If it is attempted to place it closer to the transmission case, interference with the transmission shaft for power transmission in which the shaft center provided in the transmission case is oriented in the left-right direction becomes a problem, and the transmission case becomes a problem.
It was not possible to easily position the front part of the shoe, and it was not possible to further improve the front-rear weight balance.

[0004]

In order to solve the above-mentioned problems, the present invention mounts a working machine on the rear part of a traveling vehicle body having a pair of left and right front wheels and a pair of left and right rear wheels, and In an agricultural work machine provided with a steering handle for steering and operating the front wheels, a mission case is provided in the front part of the traveling vehicle body, and power transmission is provided in the mission case with an axis centering in the left-right direction. A plurality of power transmission shafts for the steering wheel are provided, and a steering shaft that is rotated by a rotating operation of the steering handle is inserted into the case from the upper portion of the mission case and extends toward the inner bottom portion of the case. Further, the agricultural machine is characterized in that the steering shaft is provided in a space in the mission case formed behind the frontmost transmission shaft among the transmission shafts in the mission case. And

[0005]

In the agricultural working machine of the present invention, the steering shaft is inserted into the mission case, and the mission case is positioned so that the front end position of the mission case is located in front of the steering shaft. Further, the steering shaft is provided in the space in the mission case formed behind the foremost transmission shaft out of the transmission shafts for power transmission in which the shaft center provided in the transmission case is oriented in the left-right direction. As compared with the conventional machine, the mission case can be arranged closer to the front side with respect to the position of the steering shaft, so that this agricultural work machine can be installed in the front-back direction of the machine body without increasing the machine body weight. The weight balance of can be further improved.

[0006]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a riding-type rice transplanter 1 as an example of an agricultural work machine. This rice transplanter includes a traveling vehicle body 2 and a four-row seedling transplanting device 3 which is a type of agricultural work device. .

As shown in FIG. 1 and FIG.
Is equipped with a pair of left and right front wheels 4, 4 and rear wheels 5, 5,
The front and rear wheels 4, 4, 5, 5 are driven to travel. A steering seat 6 is provided at the center of the traveling vehicle body 2 in the left-right direction, and a steering handle 7 is provided on the front side of the steering seat 6. An engine 8 which is a drive source is provided substantially in the center of the traveling vehicle body 2. An output pulley 8a of the engine 8 drives a relay pulley 10a via a transmission belt 9 to drive the relay pulley 10a.
The hydraulic pump 10 fixed to the transmission case 11 is driven by the drive of the re-roller 10a. Also,
HST from relay pulley 10a via transmission belt 12
(Hydraulic continuously variable transmission) 13 drives an input pulley 13a to drive the HST 13 mounted on the left side of the mission case 11 and transmit power from the HST 13 to the mission case 11. It is like this. Left and right front wheel axle cases 14 from the mission case 11,
Power is transmitted to 14 to drive the front wheels 4 and 4. In addition, from the transmission case 11, the left and right rear wheel transmission shafts 15,
Power is transmitted to the left and right rear wheel transmission cases 16 and 16 via 15 to drive the rear wheels 5 and 5. Further, power is transmitted from the mission case 11 to the seedling transplanting device 3 via the input transmission shaft 17 of the seedling transplanting device 3, and the seedling transplanting device 3 provided on the rear side of the traveling vehicle body 2 is operated. There is. The seedling transplanting device 3 is mounted via an elevating link mechanism 18 provided at the rear part of the traveling vehicle body 2, and is vertically movable by expanding and contracting a hydraulic elevating cylinder 19 operated by hydraulic pressure from the hydraulic pump 10. ing. The switching of the oil passage to the hydraulic lifting cylinder 19 is performed by a hydraulic switching valve 20 provided at the rear part of the traveling vehicle body.

The left side of the front part of the mission case 11 has a concave shape, and the HST1 is formed in the concave part.
The power transmission portion from the engine 8 is arranged so that the front wheels 4, 4 steered within the width of the left and right treads of the wheels 3 are not interfered with each other by being fixed. Therefore, the power transmission unit composed of the mission case 11 and the HST 13 fixed to the mission case 11 is arranged so as not to be biased to the left and right to improve the left-right balance. Further, a tension pulley 9a is provided above the belt 9 for transmitting power from the engine 8 to the hydraulic pump 10, and the tension pulley 9a is provided.
By making the front upper part of the belt 9 substantially parallel to the step surface of the traveling vehicle body 2, it is possible to lower the position of the step 21, and thus lower the position of the cockpit 6, and to lower the center of gravity of the machine body. You can Also, the input shaft 1 of the HST13
3b and the output shaft 13c (mission case input shaft 22) are arranged at substantially the same height so that the HST 13 does not project upward, and the position of step 21 is lowered.

Further, a main frame 23 having a triangular shape in a plan view is provided at a substantially central portion of the traveling vehicle body 2. The main frame 23 has the engine 8 mounted on an upper side thereof and the mission case on a front side thereof. 11 is fixed. Further, at the rear portion of the main frame 11, the elevating link mechanism 18 is attached, and the rolling frames 24 of the rear wheels 5, 5 to which the left and right rear wheel transmission cases 16, 16 are fixed are pivotally mounted. The rear wheels 5 and 5 are swingably provided on the traveling vehicle body 2. The base point portion 19a of the hydraulic lifting cylinder 19 is pivotally attached to the middle portion of the left and right frame pipes 23a, 23a of the main frame 23, and the cylinder 19 is arranged below the engine 8, and in a side view of the machine body. A part of the hydraulic lifting cylinder 19 is overlapped with the frame pipe 23a, and the hydraulic lifting cylinder 19 and thus the engine 8 can be arranged at a low position to lower the center of gravity of the machine body. You can
Further, the pivot point 19b of the base point portion 19a of the hydraulic lifting cylinder 19 is provided above the axial center portion of the cylinder rod of the cylinder to lower the position of the cylinder 19.

By the way, as shown in FIGS. 2 and 3, the hydraulic circuit of the hydraulic pump 10 includes a hydraulic oil supply circuit to the hydraulic lift cylinder 19 and a charge circuit of the HST 13. That is, the hydraulic pump 10 that is a dual pump
And a discharge port 10b for supplying pressure oil to the hydraulic lifting cylinder 19.
And the discharge port 10c for the charge circuit of the HST 13 are provided. A hydraulic pressure is supplied to the hydraulic pressure switching valve 20 through the pipe 25 from the former discharge port 10b, and the valve 20 and the hydraulic lifting cylinder 19 (the lowering lock valve 26) are connected by the pipe 27.
Are connected by A pipe 29 that serves as an oil passage for return oil from the hydraulic pressure switching valve 20 to the hydraulic tank 28 is provided. A pipe 31 for supplying oil from the latter discharge port 10c to the HST 13 via a filter 30 and a pipe 32 for returning the return oil from the HST 13 to the hydraulic tank 28 are provided. In addition, a pipe 33 that serves as an oil passage from the hydraulic tank 28 to the hydraulic pump 10 is provided. These pipes 2
The cables 5, 27, 29, 32, and 33 are arranged on the right side of the machine body to prevent interference with the transmission belts 9, 12 and the like provided on the left side of the machine body.

The seedling transplanting device 3 comprises a seedling placing table 40, a planting transmission case 41 and seedling planting devices 42, ... In addition, at the bottom of 3 of the seedling transplanting device, there is a center flow.
The side floats 44, 44 are provided on the hood 43 and both side portions, and the floats 43, 44, 44 slide on the field scene. The floats 43, 44, 44 are
It is provided rotatably around a pivot shaft 45 in the left-right direction, and this pivot shaft 45 moves up and down with respect to the seedling planting device 42, ... By rotating the planting depth adjusting shaft 46a. The rotation angle of the planting depth adjusting shaft 46a is adjusted to the planting depth adjusting lever-4.
6 is used to adjust the planting depth for the field. Further, in order to control the seedling transplanting device 3 to a predetermined height with respect to the field scene, a field scene sensing mechanism 47 for detecting an inclination angle in the front-rear direction of the center float 43, that is, an angle of attack, is configured. The hydraulic pressure switching valve 20 is operated via the wire 48 in accordance with the operation of the field scene detection mechanism 47. This field scene detection mechanism 47 includes a float link 47a which moves up and down in accordance with the vertical movement of the front part of the center float, a sense link 47c pivotally attached to the float link 47a and a pivot shaft 47b, and the sense link. 47
and a parallel link 47e which moves up and down the pivot shaft 47d of c. When the float link 47a moves up and down, the sensing link 47c rotates around the pivot shaft 47d and is attached to the other end of the sensing link 47c. The attached wire 48
Is activated. The position of the parallel link 47e is determined by a rod 46b which operates in accordance with the operation of the planting depth adjusting lever 46. That is, the height of the sensing link 47c with respect to the planting transmission case 41 is set according to the planting depth.

The seedling placing table 40 is attached to the lateral moving shaft 49 protruding from both sides of the planting transmission case 41 by the seedling placing table attaching members 50, 50, and the seedling placing devices 42 ,. With the operation of, the seedling planting devices 42, ... scrape off the mat seedlings on the seedling placing table one by one. In addition, the seedling placing table 40,
Seedling feed drive shaft 5 protruding from the planted transmission case 41
Seed feeding drive cams 51a, 5 attached to 1, 51
By the rotational drive of 1a, the seedling feeding drive arms 52a provided on the seedling placing table side at the end of the lateral movement of the seedling placing table 40,
52a is driven, and the seedling feeding belt 52 of each row is actuated by driving the seedling feeding drive arm to sequentially transfer the mat seedlings to the planting device side. In addition, this seedling placing table 4
0 is a seedling table slide plate 53 having a seedling planting device 42, ...
Is supported by a guide rail 55 that guides the, and is configured to be movable left and right.

The seedling placing table slide plate 53 is provided so as to be movable up and down along the plates 57, ... By the seedling removing amount adjusting lever 56. The table 40 is moved to the seedling planting device 4
The amount of scraped seedlings 2, ... can be adjusted. As shown in FIGS. 1 and 4, the planting depth adjusting lever 46 and the seedling picking amount adjusting lever 56 are provided on both sides of the planting transmission case 41. Mu 5
The seedling transplanting device is provided so as to engage with the guide grooves of the lever guides 46a and 56a attached to the lateral pipes 58 provided so as to connect the both frames 57 and 57 to the middle portions of the 7, 57. 3 is provided toward the cockpit 6 through the space 41a of the planted transmission case 41 at the center in the left-right direction of 3, and is arranged within the left and right tread widths of the rear wheels 5, 5. -It is easy to operate the console from the cockpit 6.

The seedling transplanting device 3 is provided so as to be able to roll left and right with respect to the vertical link 18a at the rear portion of the elevating and lowering link mechanism 18, and horizontal and horizontal control is performed regardless of the inclination of the traveling vehicle body 2 from side to side. Is possible. The specific configuration is as follows. The left and right rolling shafts 3a of the seedling transplanting device 3 are fitted to the rolling bearings provided on the vertical links 18a, and the rolling arms 59 provided on the vertical links 18a are fitted. Rolling springs 60, 60 are hung from the left and right frames 57, 57 of the seedling transplanting device 3. Therefore, when the rolling arm 59 is operated by an electric motor or the like, the rolling spring 60 is pulled, and the seedling transplanting device 3 is tilted left and right with respect to the traveling vehicle body 2. When the seedling transplanting device 3 is lifted, for example, on the edge of the field, when the seedling transplanting device 3 is raised, the lower links 18b on the left and right of the lifting link mechanism 18,
The left and right rolling lock springs 61, 61 hung on the reinforcing shaft 18c connecting the 18b and the lateral pipe 58 act to regulate the left and right rolling of the seedling transplanting device 3.

Further, a bonnet 70 in front of the cockpit 6 is provided with an HST lever 71 on the left side for gear shifting operation of the HST 13, and a planting / elevating lever on the right side.
72 is provided so that the seedling transplanting device 3 can be moved up and down and the seedling transplanting device 3 can be turned on and off by operating the hydraulic pressure switching valve 20. Also, the bonnet 7
There is a vehicle speed change lever 73, which is a stepped speed change operation, on the rear side of 0. This vehicle speed change lever 73 is mainly used when planting seedlings in a field, at a planting speed position, and when driving on the road. There is a moving speed position where you can travel at high speed and a neutral position that cuts off the transmission of power to the front and rear wheels of the traveling body.
By operating 73, the transmission ratio of the drive transmission system for the front and rear wheels in the mission case can be changed. The HST lever 71, the planting / elevating lever 72, and the vehicle speed switching lever 73 are centrally provided in the bonnet portion on the front side of the cockpit 6, so that the operator can easily operate them. Has become. As shown in FIG. 5, the operation connection structure of the HST 13 includes a rotary shaft 7 fixed to the HST lever 71.
1a is connected to an L-shaped tool 71e which is rotatable around a rotation fulcrum 71d from an arm 71b which is integral with 1a, and a second rod 71f is connected from the other end of the L-shaped tool 71e. It is connected to the trunnion arm 13d of the HST 13. Therefore, the trunnion arm 13d operated in the left-right direction of the machine body is operated in the front-rear direction of the machine body H
It can be operated by the ST lever 71.

Further, as shown in FIG. 5, the operation connecting structure for turning on / off the drive of the seedling transplanting device 3 is the same as the planting / elevating lever 7 described above.
The operation of step 2 causes the cam 72a fixed to the lever 72 to move the planted clutch pin 104, which will be described later, to the mission case.
The power transmission to the seedling transplantation device 3 is turned on or off by pulling it out from the stool 11 or pushing it into the mission case. Also, below the left side of the hood 70, the front and rear wheels 4, 4, 5, 5 of the traveling vehicle body and the seedling transplanting device 3 are provided.
A main clutch pedal 74 that cuts off the transmission of power is provided, and brake pedals 75, 75 for braking the left and right rear wheels 5, 5 are provided at positions substantially symmetrical to the clutch pedal 74. In addition, the bonnet 7 which becomes these pedal parts
The rear part of 0 has a hollow shape, and the operator sitting in the cockpit 6 can easily step on the pedal to operate the pedal.

Now, the transmission structure in the mission case 11 will be described with reference to FIG. The input shaft 22 of the mission case meshes with the output shaft 13c of the HST by a spline and is input to the mission case 11. A gear 82 that rotates integrally with a shaft 81 having a quadrangular shape in the middle by transmission of power from a wet clutch 80 from the input shaft 22.
Is driven, and a relay gear 83 that meshes with the gear 82 is driven to drive a shaft 84 that rotates integrally via a spline portion. The wet clutch 80 is operated by the clutch pedal 74.

The transmission structure to the seedling transplanting device 3 will be described. By driving the shaft 84, the main plant-to-plant switch gear 85 that rotates integrally through another spline portion of the shaft 84 is driven. The main plant-to-stock switch gear 85 is slidably provided on the shaft 84. Further, a shaft 86 is driven via a one-way clutch 87 by a gear 86 meshing with the main plant-to-plant stock switching gear 85, and a sub-plant-to-plant stock switching gear 89 that rotates integrally with the shaft 88 is driven. The subplant-to-stock switching gear 89 is slidably provided on the shaft 88. Then, the bevel gear 91 that is integral with the gear 90 that meshes with the sub-plantation stock switch gear 89 is driven. The gear 90 and the bevel gear 91 are configured to be freely rotatable around the shaft 84. The bevel gear 91 drives the planted transmission shaft 92 and a bevel gear 93 provided so as to freely rotate. Then, the claw 94 of the boss portion of the bevel gear 93
And the bevel gear 9 by the safety clutch spring 95.
The claws 97 of the safety clutch body 96 biased in the three directions are in mesh with each other, and the safety clutch body 96 rotates integrally with the planted transmission shaft 92 via the spline portion.
The claw 99 of the planting clutch driving body 98 that rotates integrally with the planting transmission shaft 92 and the clutch claw 101 of the planting clutch passive body 100 mesh with each other, and the planting clutch passive body 100 is planted via the key 102. The planted output shaft 103 is driven by rotating integrally with the planted output shaft 103. Therefore, power is transmitted from the planted output shaft 103 to the seedling transplantation device 3 via the input transmission shaft 17 outside the mission case. In addition, by engaging and disengaging the planting clutch pin 104 with the planting clutch passive body 100, which interlocks with the planting / elevation lever 72, the planting clutch passive body 100.
By switching between the state in which the clutch claw 101 of FIG. 4 meshes with the clutch claw 99 of the planting clutch drive body 98 and the state of releasing the meshing (the state in which the planting clutch passive body 100 is slid backward), the seedling transplanting device 3 It is designed to turn the drive on and off. Further, when the seedling transplanting device 3 accidentally causes a mechanical lock, the seedling transplanting device 3 and the seedling transplanting device 3
In order to prevent the power transmission system from being damaged, the claw 94 of the boss portion of the bevel gear 93 and the claw 97 of the safety clutch body 96 are inclined with respect to the axial direction of the planted transmission shaft 92, When a load larger than a predetermined amount is generated in driving the seedling transplanting device 3, the pawl 97 of the safety clutch body 96 causes the bevel gear 93 to move.
The state in which the engagement with the claw 94 of the boss portion is released (the state in which the safety clutch body 96 is slid forward) is compressed and the power transmission to the seedling transplanting device 3 is cut off by compressing the safety clutch spring 95.

Next, the front and rear wheels 4, 4, 5, 5 of the traveling vehicle body 2
The power transmission configuration to will be described. The drive of the relay gear 83 drives the gear 106 that rotates integrally with the shaft 105. Then, the vehicle speed switching gear 107 that rotates integrally with the shaft 105 via the spline portion is driven. The vehicle speed switching gear 107 is provided slidably with respect to the shaft 105, and is slid by a vehicle speed switching shifter (not shown) by a switching operation of the vehicle speed switching lever 73 so as to be attached to the side clutch shaft 108. The vehicle speed is changed by switching the meshing with the vehicle speed switching driven gear 109 which is welded and integrated with the shaft 108. Then, the transmission configuration of the front wheels 4 and 4 is such that the vehicle speed switching driven gear 109 is located on the left rear wheel counter shaft 11
1 and the front wheel differential 1 via the counter gear 112 which can freely rotate.
A gear 114 which is integral with the differential gear case 113a of the No. 13 gear meshes with the front wheel differential 113 to the left and right front wheel transmission shafts 115, 11
Power is transmitted to 6 respectively. This left and right front wheel transmission shaft 1
15 and 116 are front and rear axle cases 1 on the left and right respectively.
The power is transmitted to the wheels 4 and 14 to drive the front wheel shafts 4a and 4a. A diff lock body 117 that is integrally rotatable and axially slidable with the left front wheel transmission shaft 115 and a square shaft portion is provided, and a claw 118 provided on the diff lock body 117.
Is switched between a state in which it engages with a claw 119 provided on the differential case 113a and a state in which it disengages, so that the left and right front wheels 4 and 4 are switched between a differential state and a non-differential state. Further, the rear wheels 5 and 5 are configured to transmit power from the side clutch shaft 108 to the left and right clutch and brake mechanisms 120 and 120 via spline portions. Clutch and brake mechanism 120, 120
Is a device that cuts off power transmission to the rear wheels 5, 5 by operating the brake pedals 75, 75 and brakes the rear wheels 5, 5 and includes a plurality of clutch discs and a brake disc. . The gear 12 that rotates integrally with the driven side of the clutch and break mechanism 120, 120.
1, 121 are left and right rear wheel counter shafts 111, 1
The left and right rear wheel counter shafts 111, 122 are driven by meshing with gears 123, 123 that rotate integrally with the gear 22. Then, the bevel gears 124, 124, which rotate integrally with the rear wheel counter shafts 111, 122, mesh with the bevel gears 126, 126, which rotate integrally with the rear wheel output shafts 125, 125, to drive the rear wheel output shafts 125, 125, and the transmission case. Rear wheel transmission case 16,1 via rear wheel transmission shaft 15,15
The rear wheel shafts 5a, 5a are transmitted by transmitting power to the drive shaft 6.

Further, as shown in FIGS. 1 and 7, a steering shaft 130 for transmitting the steering of the front wheels 4 and 4 from the steering handle 7 is provided so as to penetrate through the transmission case 11. . Specifically, it is arranged behind the input shaft 22 of the mission case 11 and in front of the shaft 84 in the mission case, and is arranged so as to fit within the left and right widths of the shaft 22 and the shaft 84. . With this configuration, the position of the mission case 11 of the traveling vehicle body 2 having a small left and right tread width of the wheels is substantially centered in the left-right direction, and the mission case 11 is restricted by the steering shaft 130. Instead, it is moved to the front of the aircraft. The steering transmission structure of the front wheels 4 and 4 is configured such that a gear 133 that integrally rotates under the steering shaft 130 is driven by a gear 133 that is driven via a steering counter gear 132.
The pitman arm 134 that rotates together with the pitman arm is rotated, and the pitman arm 135 is rotated by the left and right tie rods 135, 135.
This is a structure in which the steering portions of the front wheel axle cases 14 and 14 are connected to each other.

Therefore, in the transmission case 11, with respect to the transmission portion to the rear wheels 5 and 5 which requires a lateral width, the transmission portion to the front portion of the transmission portion, that is, the rear wheels 5 and 5 is branched left and right. The left side of the front portion of the side clutch shaft 108 has a hollow shape, and the HST 13 is fixed to the hollow portion so that the HST 13 is arranged near the center in the left-right direction of the machine body. In the mission case, the front wheel diff 113, which requires a left-right width, may be arranged rearward of the side clutch shaft 108 so that the left side of the front part of the mission case 11 has a concave shape.

[Brief description of drawings]

FIG. 1 is a side view of a riding rice transplanter.

FIG. 2 is a plan sectional view of a traveling vehicle body.

FIG. 3 is a diagram showing a hydraulic circuit;

FIG. 4 is a plan view of a part of the seedling transplanting device.

FIG. 5 is a front view showing an operation connection structure of an HST lever.

FIG. 6 is a plan sectional development view of a mission case.

FIG. 7 is a side sectional view of the same as above.

[Explanation of symbols]

1 ... Riding type rice transplanter, 2 ... Running car body, 3 ... Seedling transplanting device,
7 ... Steering handle, 11 ... Mission case,
22 ... Mission case input shaft, 84, 105, 10
8, 111 ... Transmission shaft in mission case, 130 ... Steering shaft

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsu Nomura 1 Yakura, Tobe-cho, Iyo-gun, Ehime Pref.Iseki Agricultural Machinery Co., Ltd. Department

Claims (1)

[Claims] 1. An agricultural work machine in which a working machine is mounted on a rear portion of a traveling vehicle body having a pair of left and right front wheels and a pair of left and right rear wheels, and a steering handle for steering and operating the front wheels is provided on a front side of the traveling vehicle body. In the above, a transmission case is arranged in the front part of the traveling vehicle body, and a plurality of power transmission shafts for power transmission are provided in the transmission case, the shaft centers of which are oriented in the left-right direction. A rotating steering shaft is inserted into the case from the upper portion of the mission case and extends toward the inner bottom of the case, and the steering shaft is provided in the transmission case. Among them, the mission case formed behind the transmission shaft located at the front
A farming machine characterized by being installed in a space inside the space.