JP2571019Y2 - Airframe structure of mobile agricultural 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 frame structure of a mobile agricultural machine having an engine mounted on a front portion of the frame.

[0002]

2. Description of the Related Art In general, a mobile agricultural machine such as a riding rice transplanter is known in which an engine is mounted on a front portion of an airframe. However, this type of airframe is conventionally provided with an outer frame formed integrally. A reinforcement pipe in the left-right direction is installed, and an engine base on which the engine is mounted is supported by the front part of the body frame and the reinforcement pipe.

[0003]

However, in the case where the reinforcing pipe for supporting the engine base is provided separately from the integrally formed outer peripheral frame, the entire structure becomes complicated, and the outer peripheral frame is formed integrally. There is a problem that the attachment and detachment of the battery or the mounting operation of the engine pulley is not easy because the both side portions and the reinforcing pipe are in the way. The present invention has been conceived to solve the above-described problems. The engine can be mounted on the front of the fuselage frame. It is an object of the present invention to provide an aircraft frame structure for a mobile agricultural machine that allows the user to easily perform the mounting operation.

[0004]

In order to solve the above-mentioned problems, a technical measure taken by the present invention is to provide a mobile agricultural machine having an engine mounted on a front portion of a body frame, in which the outer periphery of the body frame is divided into left and right outer circumferences. The front end of one of the outer frames is bent laterally toward the front of the engine base, and the front end of the other outer frame is laterally bent toward the rear of the engine base. The left and right outer peripheral frames are integrally connected and fixed by an engine base extending over both the bent extension portions.

[0005]

According to the present invention, if the left and right outer frames are connected and fixed by the engine base, the body frame and the engine base are formed integrally. Therefore, the left and right outer peripheral frames that constitute the outer periphery of the body frame are small members that are easy to handle, and the engine is mounted on the engine base without providing any special reinforcing pipes or the like. Becomes Further, since the engine base straddling the laterally bent portions of the left and right outer frames does not obstruct the side space, the attachment / detachment of the battery and the mounting operation of the engine pulley are facilitated.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described in detail with reference to the accompanying drawings. Reference numeral 1 denotes a traveling body of a riding rice transplanter exemplified as a mobile agricultural machine. An engine 5 is mounted on a front part of a body frame 4 having a front wheel 2 and a rear wheel 3, and a driver's seat 6 is disposed behind the engine 5. I have. Reference numeral 7 denotes a planting portion including a seedling mounting table 8, a float 9, a seedling planting rod 10, and the like. The planting portion 7 is supported at the rear of the traveling machine body 1 via a link mechanism 11 so as to be able to move up and down. .

The body frame 4 is made of a lightweight pipe material, and as shown in FIGS. 1 and 2, an outer frame 12 which forms the outer periphery of the body and lower right and left lower frames which are provided below the inside of the outer frame 12 and protrude rearward. 13 and 13. The outer frame 12 includes a left outer frame 14 and a right outer frame 15,
Both outer frames 14 and 15 are integrally connected and fixed by an engine base 16. That is, the left outer peripheral frame 14 includes a front-rear straight portion 14a passing outside the left front axle boss 17 and a bent extension portion 14b having a front end bent laterally from a side position of the engine base 16. The bent extension portion 14b extends to the right side under the front portion of the engine base 16. The right outer frame 15 also has a straight portion 15a passing outside the right front axle boss 18 and a bent extension portion 15b formed by bending the tip portion in the lateral direction. The extension 15b is located below the rear part of the engine base 16. And the above-mentioned both bending extension parts 14
The outer frame 12 serving as a strength member of the body frame 4 is integrally formed by connecting and fixing the left and right outer frames 14 and 15 with the engine base 16 straddling the engine base 16 and 15b. The engine 5 can be directly mounted. Reference numeral 19 denotes a mounting shaft of a PTO pulley projecting to the left side of the engine 5, and reference numeral 20 denotes a vibration-proof rubber. On the right side of the engine base 16, a mounting space 21 for a battery or the like is formed by the opposing bent extension portions 14b and 15b.

Reference numeral 22 denotes a transverse beam member connecting the outer peripheral frames 14 and 15, and reference numeral 23 denotes a bracket which is suspended substantially at a central portion thereof.
13 is fixed, and a transmission case 24 is fixed to the front surface of the bracket 23. Reference numerals 25 and 25 denote mounting plates for the front axle bosses 17 and 18, respectively. The mounting plates 25 and 25 extend along the outer peripheral frame 12 in the front-rear direction of the cross beam member 22. 22 is welded. Front axle bosses 17 and 18 are fixed to the distal ends of the mounting plates 25 and 25, and mounting holes 27 for a clutch pedal and the like are formed in a wall plate 26 formed in a rearwardly extending portion. Further, a mounting pipe 29 for pivotally supporting the rear end of the auxiliary seedling stand 28 is provided at a rear portion of the wall plate portion 26. A support frame 30 supports the front end of the auxiliary seedling stand 28. Reference numeral 31 denotes a seat support frame which stands upright from the left and right lower frames 13, 13.

On the lower frames 13, 13, a rear axle support frame 32 formed in a front-rear direction and formed of a pipe material is provided. The rear axle support frame 32 is
The extra length portions at both ends of the pipe member 33 fixed across the left and right lower frames 13 and 13 are projected upward in a curved shape, and the middle portion thereof is welded to the inside of the rear end of the outer peripheral frame 12 and the rear end lowered. By fixing the sides to the rear ends of the lower frames 13, 13, they are integrally formed in a loop shape. 34
Is a horizontal pipe connecting the upper part of the rear axle support frame 32, and the horizontal pipe 34 supports and reinforces the seat support frame 31 from below. Reference numerals 35, 35 denote left and right mounting seats fixed to the rear end of the rear axle support frame 32. Right and left sides of a rear axle 36 are mounted on the mounting seats 35, 35. A center connection plate 38 that supports the center of the rear axle 36 is formed integrally with the center of the connected connection pipe 37. Reference numeral 39 denotes a steering wheel, and reference numeral 40 denotes a foot for getting on and off.

In the above-described configuration, the left outer peripheral frame 14 and the right outer peripheral frame 15 are connected to the bent extension portion 14b,
If it is connected and fixed with the engine base 16 straddling 15b,
Peripheral frame 12 serving as a strength member of body frame 4
Can be easily formed. Therefore, the left and right outer frames 14 and 15 can be made of small members that can be easily handled, and the engine 5 can be directly mounted on the engine base 16.
Therefore, the engine 5 can be easily and reliably mounted with only the minimum members necessary for constituting the outer peripheral frame 12. In addition, there is no obstacle on the side of the engine base 16 such as a reinforcing pipe, so that P
Easy installation of TO pulley etc.
The battery and the like can be easily attached to and detached from the mounting space 21 formed on the side of the battery. Both outer peripheral frames 1
4 and 15 are further reinforced by the cross beam member 22 and the mounting plate 25, and the lower frames 13 and 13 are provided with the loop-shaped rear axle support frame 32, so that the entire lightweight body frame 4 made of pipe material is rigid. High frame structure. Meanwhile, rear axle 36
When mounting, the left and right mounting seats 35 and the connecting pipe 37
Can be easily and firmly attached by the center connecting plate 38 formed in the above.

[0011]

In summary, the present invention relates to a mobile agricultural machine having an engine mounted on the front of a body frame, wherein the outer periphery of the body frame is constituted by left and right outer frames, and the front end of one of the outer frames is an engine base. The engine that bends in the horizontal direction toward the front of the engine, and the front end of the other outer peripheral frame extends in the horizontal direction toward the rear of the engine base, and straddles both the bent extensions. Since the left and right outer frames are integrally connected and fixed by the base, the left and right outer frames constituting the outer periphery of the body frame can be small members that are easy to handle. Since the left and right outer frames are connected by the engine base, the engine can be mounted on the engine base with only the minimum number of members necessary for integrally fixing the outer frames. Therefore, there is no need to provide special reinforcing pipes, etc.
The entire body frame can have a simple structure, and the engine base straddling the bent extension of the outer frame has no obstruction to the side space. It can be easily performed.

[Brief description of the drawings]

FIG. 1 is a plan view of a main part.

FIG. 2 is a side view of the same.

FIG. 3 is an overall side view of the mobile farm machine.

FIG. 4 is a plan view of the same.

FIG. 5 is a perspective view of the same.

FIG. 6 is a front view of an engine mounted on an engine base.

FIG. 7 is a side view of the same.

[Explanation of symbols]

 4 Airframe 5 Engine 14 Left outer frame 15 Right outer frame 16 Engine base

Claims (1)

(57) [Scope of request for utility model registration] In a mobile agricultural machine having an engine mounted on a front portion of a body frame, an outer periphery of the body frame is constituted by left and right outer frames, and a front end of one of the outer frames is laterally directed toward a front portion of an engine base. Direction, the front end of the other outer frame is bent laterally toward the rear of the engine base, and the left and right outer frames are extended by the engine base straddling both bent extensions. An aircraft frame structure for a mobile agricultural machine, which is integrally connected and fixed.