JP2001058583A - Power agricultural machine vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate maintenance, or the like by dividing the cover of a vehicle body in an appropriate position, and obtaining a power agricultural machine vehicle with a light weight structure and easy to get on and off. SOLUTION: A cover 40 for a body is divided into a front and back cover, and the back end side of the front cover and the front end side of the back cover are supported to the body by a common support member 57 to make the power agricultural machine vehicle, and further, the cover 40 is divided into a front cover and back cover, and a step 44 is formed at the both sides of the back cover for getting on and off, and a stay 59 which supports the back cover is installed near the step 44 for getting on and off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a powered agricultural machine having a cover for covering an airframe.

[0002]

2. Description of the Related Art Conventionally, there has been a riding powered agricultural machine having a cover for covering an airframe, in which a riding floor is formed on the cover.

[0003]

The riding power agricultural machine is provided with a high vehicle height for traveling on a field. For this reason, the upper surface of the passenger floor is provided at a high position of the fuselage, and it is difficult to get on and off the vehicle. Therefore, auxiliary steps lower than the passenger floor are separately provided on both left and right sides of the vehicle body to facilitate getting on and off.

[0004] However, such an auxiliary step is formed separately from the passenger floor fixed to the body frame, so that the number of parts increases and the weight of the body is hindered. there were. Therefore, the present invention provides a riding power agricultural machine having a good workability and a light weight configuration,
It is an object of the present invention to divide a cover for covering an airframe at an appropriate position and to support the cover with a reasonable support structure.

[0005]

According to the first aspect of the present invention, a cover 40 for covering an airframe is divided into a front cover 40a and a rear cover 40b. 40a rear end side and rear cover 40b
The front end portion of the vehicle is a riding powered agricultural machine supported on the body by a common support member 57, and the invention according to claim 2 is characterized in that the support member 57 is attached to the front axle case 10. According to a third aspect of the present invention, a cover 40 for covering an airframe is divided into a front cover 40a and a rear cover 40b, and the rear cover 40b is mounted on the left and right sides of the rear cover 40b. A vehicle powered agricultural machine having a vehicle step 44 formed and a stay 59 for supporting the rear cover 40b provided near the vehicle getting on and off step 44 is provided. Step 44 is applied to the riding floor 4 of the rear cover 40b.
4. The structure as claimed in claim 3, wherein the lower part is formed at a position lower than 1.
It is a riding power agricultural machine as described.

[0006]

According to the first aspect of the present invention, the cover 40 covering the body is divided into a front cover 40a and a rear cover 40b, and the rear end of the front cover 40a and the front end of the rear cover 40b. The side is a riding power agricultural machine supported on the fuselage by the common support member 57, so that the front and rear covers are divided as compared with the case where the cover for covering the fuselage is integrally formed. 40b is easy to handle, and has good workability during production and maintenance. And
In the state where the front cover 40a and the rear cover 40b are attached to the body, it is possible to prevent a step from occurring at the joint between the two, and, by sharing the support member 57, it is possible to obtain an inexpensive agricultural machine with a small number of parts. it can.

According to a second aspect of the present invention, the supporting member 57 is mounted on the front axle case 10 to provide the riding power agricultural machine according to the first aspect. By connecting the support member 57 and the front axle case 10, the support member 57 can support a vertically upward load coming from the front wheels applied to the front axle case 10 during work, so that the body is lightweight. The strength can be increased, the total number of parts can be reduced, and the weight and cost can be reduced.

According to the third aspect of the present invention, the cover 40 for covering the body is divided into a front cover 40a and a rear cover 40b, and the rear cover 40b is provided with steps 44 for getting on and off the vehicle on both left and right sides thereof. This is a riding power agricultural machine provided with a stay 59 for supporting the rear cover 40b near the step 44 for getting on and off the vehicle, so that the front and rear split structure is provided as compared with the case where the cover covering the body is integrally formed. Thus, the covers 40a and 40b can be easily handled, and workability is good at the time of production and maintenance. Then, at the time of getting on and off in the agricultural work, the getting on and off can be easily performed by using the getting on and off step 44, and the workability is good. Also, since the step 44 for getting on and off is formed on the rear cover 40b,
Manufacturing and assembly are facilitated, the number of parts is reduced, and an inexpensive agricultural machine can be obtained. Step 4 for getting on and off
4, a stay 59 for supporting the rear cover 40b is provided, so that the rear cover 40b and the step 44 for getting on and off the vehicle are provided.
Can properly support the vertical downward load, and can effectively reduce the deflection of the rear cover 40b and the step 44 for getting on and off when the vehicle gets on and off the aircraft, thereby preventing slippage of the foot due to the bending. can do.

According to a fourth aspect of the present invention, there is provided the riding powered agricultural machine according to the third aspect, wherein the step 44 for getting on and off is formed at a position lower than the riding floor 41 of the rear cover 40b. Therefore, in addition to the operation and effect of the third aspect of the present invention, at the time of getting on and off in the agricultural work, the getting on and off can be more easily performed by using the step 44 for getting on and off which is lower than the getting on floor 41, and the workability is good.

[0010]

1 to 8 show an embodiment of the present invention, in which a working plant part 3 for planting rice is attached to a rear part of a power farming machine 2 and used as a riding rice planting machine 1. FIG. It represents the state.

The power agricultural machine 2 has a transmission case 5 and a differential case 9 integrated with the transmission case 5 at the front of the body, and has left and right front axle cases 10 and 10 from both sides of the differential case.
10 protrudes outwardly, and has a front wheel support case 1 at its end.
The left and right front wheels 12, 12 are pivotally supported at the lower end of the front wheel support case. A steering case 13 is provided at a front portion of the mission case 5, and a steering wheel 13b is attached to an upper end portion of a steering shaft 13a protruding upward therefrom.

A front end of a main frame 7 extending rearward is fixedly connected to a rear surface of the differential case 9, and a rear case 14 is provided at a rear end of the main frame. Chain cases 15, 1 are provided on both left and right ends of the rear case.
5 are attached rearward, and the left and right rear wheels 1
6 and 16 are respectively supported. The rear case 14 is located substantially in the middle between the front wheel 12 and the rear wheel 16 in a side view, and an engine base 19 is mounted horizontally on the rear case.
An engine 20 is provided thereon.

The output shaft 22 of the engine is provided to protrude forward,
The extension shaft 23 is provided forwardly above the transmission case 5. As shown in FIGS. 3 and 4,
A transmission input shaft 24 projecting forward from the transmission case 5 and a counter shaft 25 having substantially the same height as the input shaft are provided below the extension shaft 23. The belt is transmitted to a transmission input shaft 24 through a belt 25. That is, in this belt type transmission A, one belt 27 is stretched between the pulley 23a of the extension shaft and the pulley 25a of the counter shaft, and the pulley 25a of the counter shaft and the pulley 2
2a, two belts 28, 29 are stretched. The transmission mechanism from the counter shaft 25 to the transmission input shaft 24 is configured as a sub-transmission and belt clutch.
Either belt (28, 29) with tension pulley 30
Can be switched between a clutch engaged state in which low-speed or high-speed transmission is performed by tensioning the clutch, and a clutch-disengaged state in which both clutches are loosened to stop transmission.

The power input from the transmission input shaft 24 to the mission case 5 is taken out as a traveling system output and a working system output. The running system output is divided into a front wheel drive output and a rear wheel drive output in a differential case 9, and the front wheel drive output is transmitted to the front wheels 12 via transmission means in the front axle case 10 and the front wheel support case 11, and the rear wheel drive output Is transmitted to the rear case 14 via the rear wheel transmission shaft 32 and transmitted to the rear wheel 16 via transmission means in the rear case and the chain case 15. On the other hand, the working system output is transmitted to the rear end of the machine body via the working unit transmission shaft 33, from which the PT
The information is transmitted to the work area 3 described later via the O-axis 34.

The cover 40 to be put on the chassis configured as described above includes a flat riding floor 41,
A front cover portion 42 protruding from the floor and covering an upper portion of the front end of the fuselage, and an engine cover portion 43 covering an upper portion of the engine 20 and the like, the left and right sides of a floor 41 located at a space between the front wheel 12 and the rear wheel 16. Steps 44, 44 for getting on and off the vehicle one step lower than the floor are formed in the portion.

A steering post 46 containing the steering shaft 13a is installed upward from the front cover portion 42, and the steering post cover 4 is provided therearound.
7 are provided. At the upper end of the steering post cover 47, the steering wheel 13b, an operation panel 48 to which various operation levers and meters are attached,
A headlight 49 and the like are provided. Operating pedals 50,... Are provided at the lower left and right feet slightly behind the steering post 46. These steering wheel 13b, operation panel 48, operation pedal 50,
, And the cockpit 5 on the engine cover 43.
2 are installed. A notch 43a for accommodating a link device 80 to be described later is formed at a rear portion of the engine cover 43, and rear ends 41a, 41a of the floor are provided at the rear wheel 16,
It is formed in a slanted shape avoiding 16.

As shown in FIG. 5, the cover 40 is separated back and forth along a division plane XX. This division plane X
-X is a surface that divides the front cover portion 42 forward and backward near the steering post 46, a surface that passes right above the front wheel axle, divides the left and right sides of the floor 41 into front and rear, and a front-rear surface that connects the two. It is composed of Therefore, the front cover 40a has a substantially concave shape in a plan view, and can be easily removed from the body by moving the front cover forward with the fixing bolts and the like removed. Numerals 53 and 54 in the figure are cutouts for disposing the operation pedals 50,.

The front cover 40a is supported in a state where it is placed on a horizontal front stay 57 fixed to the front axle cases 10, 10 and weights 56, 56 for adjusting the weight balance provided on both sides of the front end of the body. Have been. The rear cover 40b is provided with the front stay 57, the rear case 1
Central stays 59, 59 erected from a horizontal frame 58 protruding from the side of the fourth case 4, and left and right chain cases 15, 15
Are supported on the rear stays 60, 60 erected from the horizontal frame 58.
Steps 44, 44 are supported at both ends. That is, the rear end of the front cover 40a and the front end of the rear cover 40b are supported by the front stay 57, which is a common support member. Therefore, there is no step between the two members in the mounted state, and a common structure is used for the supporting member, thereby providing a simple structure with a small number of parts. further,
The front stay 57 is also used as a member for determining a stop position in response to a return of an operation pedal such as a foot brake. In addition, the rear cover 40b by the rear stay 60
As shown in FIG. 8, the structure of the supporting portion is a pin 63 for connecting the stay and the cover with a leaf spring type patch lock 62. As shown in FIG.
The cover can be fixed to the fuselage with a single touch.

Therefore, the riding rice transplanter 1 has the cover 40
Is provided detachably with respect to the vehicle body, and the cover 40
Step 4 lower than the upper surface of floor 41 on both left and right sides of
4 and 44, the steps 44, 44 lower than the upper surface of the floor 41 are provided on the left and right sides of the cover 40 when getting on and off.
When the maintenance of the center part of the vehicle body is performed while standing on the side of the vehicle body, the cover 40 is removed to perform the work.
Since steps 4 and 44 are also removed, the steps do not become an obstacle when the body is brought close to the vehicle body.

The steering post cover 47 is also divided into a front portion 47a and a rear portion 47b near the center in the front-rear direction. The rear portion 47b is fixedly provided on the rear cover 40b, while the front portion 47a is detachably attached to the rear portion 47b. The structure of the mounting part is
As shown in FIG. 6, a plurality of bolt receivers 65 are provided along the edge of the rear portion 47b, and a U-shaped notch 6 is formed in the edge of the front portion 47a corresponding to the bolt receiver.
Are formed, and the two parts are integrated by tightening the bolt 67 to the bolt receiver 65 with the edges of both parts overlapped. Therefore, bolt 6
When the members 7,... Are loosened, the front portion 47a can be pulled out and removed, and the cables and the like housed inside can be easily inspected. Since the operation panel 48 and the headlight 49 are attached to the rear part 47b, they remain as they are even if the front part 47a is removed.

The engine 20 of this power agricultural machine is of a start-up type using a recoil motor, and has a knob 72 attached to a tip end of a rope 71 fed from a recoil motor 70.
Are provided on the floor beside the cockpit 52. Seventh
The figure shows the structure of the operation unit. A tubular lobe holder 75 and a rope 76 are supported on a frame 74 projecting sideways from the engine base 19, and are fed obliquely downward from the recoil motor 70. The rope 71 is turned upward by a roller 76, and the rope holder 75
And reaches the floor 41 through the inside of the floor. Rope 71
Is always biased toward the recoil motor side, so the knob 7
2 is a knob seat 7 formed at the upper end of the rope holder 75
7 is engaged. A cover receiving portion 78 is provided integrally with the upper portion of the rope holder 75, and a rear cover 40b is attached to this portion with bolts. In the figure, reference numeral 79 denotes a vertical slit formed on the outer periphery of the rope holder 75, and the rear cover 40
If the rope 71 is detached from the rope holder 75 through this slit at the time of attaching and detaching b, the work is easy.

At the rear of the power farm machine 2, there is provided a link device 80 which supports the farm work machine section 3 and moves up and down as appropriate. In this link device 80, an upper link 82 and a lower link 83 are rotatably supported by a support frame 81 fixed to the machine body, and a connecting frame 85 for mounting a working machine portion is attached to the rear ends of these upper and lower links. Have been. Linking frame 8
At the lower end of 5, a rolling shaft 86 for rotatably supporting the working machine is protruded. By expanding and contracting a hydraulic cylinder provided between the rear portion of the rear case 14 and the link base 82a of the upper link, the connecting frame 85 is moved up and down while being held in a substantially constant posture, and the working machine mounted on the Part 3 is raised and lowered.

The working machine part 3 is for rice planting,
A transmission case 90 that is transmitted from the power farming machine via the PTO shaft 34, a seedling mounting table 91 that is provided above the transmission case and that is inclined so that the front side is higher, and holds the seedling at the tip. Planting claw 92a is provided, and a planting rod 92 for taking out seedlings on the seedling mounting table 91 one by one while moving up and down while drawing a predetermined trajectory and planting the seedlings in a field is provided. On the lower side, a center float 95 and a pair of left and right floats 9 for supporting the machine of the working machine part on the paddy surface.
6, 96 are pivotably mounted up and down. A rod 97 for detecting vertical movement is attached to the front part of the center float 95. When the float moves upward, the hydraulic cylinder 87 is extended to lift the working machine part 3, and when the float moves downward, the hydraulic cylinder The work machine portion 3 is lowered by contracting 87.

[Brief description of the drawings]

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

FIG. 2 is a plan view of the riding rice transplanter.

FIG. 3 is a front view of a main part.

FIG. 4 is a side view of a main part.

FIG. 5 is a plan view of a cover.

FIG. 6 is an explanatory diagram of a steering post cover.

7A and 7B are diagrams showing a recoil operation unit, wherein FIG. 7A is a front sectional view, FIG. 7B is a side view, and FIG. 7C is a plan view of a main part.

FIG. 8 is an explanatory diagram of a cover supporter.

[Explanation of symbols]

 2: Power farm machine 5: Transmission case 12: Front wheel 16: Rear wheel 20 ... Engine 40 ... Cover 40a ... Front cover 40b ... Rear cover 41 ... Floor 44 ... Step 52 ... Cockpit 57, 58, 59 ... Stay (support member) )

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Hideyuki Kusamoto No. 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd.

Claims (4)

[Claims] 1. A cover 40 for covering an airframe, a front cover 40
a and a rear cover 40b, wherein the rear end of the front cover 40a and the front end of the rear cover 40b are supported by the body using a common support member 57. Farm machine. 2. The riding powered agricultural machine according to claim 1, wherein the support member 57 is attached to the front axle case 10. 3. A cover 40 for covering a body of a vehicle,
a and a rear cover 40b. The rear cover 40b is provided with steps 44 for getting on and off the vehicle on both left and right sides thereof.
b. A powered agricultural machine having a stay 59 for supporting b. 4. A step 44 for getting on and off the vehicle is provided with the rear cover 4
The riding powered agricultural machine according to claim 3, wherein the riding powered agricultural machine is formed at a position lower than the riding floor (41).