JP2001161121A - Structure for mounting choke lever of farm working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the assembling operating efficiency of an auxiliary brake mechanism for stopping a machine body when seedling-loading operations are performed, etc. SOLUTION: This structure is composed by installing a base end of a choke rod (56) connectedly to a choke valve (52) provided in a carburettor of an engine (26) and arranging a choke lever (57) at the tip of the choke rod (56) in a rice transplanter equipped with a hood (29) arranged in the upper part of a machine body frame (5) and an engine (26) housed in the interior of the hood (29). Thereby, the advancing and retreating operations of the choke lever (57) are performed to thereby compose the choke valve (52) so that the opening and closing operations can be performed. On the other hand, a freely detachable cover unit (62) is installed in a part of the hood (29) and a choke lever inserting hole (64) for inserting the choke lever (57) is bored in the cover unit (62) to move the cover unit (62) in the advancing and retreating directions of the choke lever (57). Thereby, the structure is composed so that the cover unit (62) can be installed and removed from the hood (29).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a choke lever mounting structure for an agricultural work machine.

[0002]

2. Description of the Related Art In a conventional agricultural working machine, a planting machine is disposed at the rear of a self-propelled traveling machine so as to be able to move up and down. The traveling machine comprises front and rear wheels, an interlocking mechanism and the like at a lower portion of a machine frame. While a traveling section is provided, a prime mover section including an engine and a transmission is provided at the front of the body frame, and the engine is housed inside a hood mounted on the upper front side of the body frame.

In an engine, a carburetor is provided with a choke valve for adjusting an intake air amount at the time of engine start, and a base end of an interlocking wire is attached to the choke valve, and a choke lever is attached to a bonnet so as to be able to move forward and backward. The tip of the interlocking wire is attached to the choke lever, and by moving the choke lever forward and backward,
The choke valve was opened and closed.

[0004]

However, in the above-mentioned conventional agricultural machine, the choke lever is connected to the choke valve via the interlocking wire, and the choke lever is attached to the bonnet. When performing this, it was necessary to temporarily shift the hood backward, insert a hand through the gap of the shifted hood, remove the interlocking wire from the choke lever, and then remove the hood.

Therefore, the maintenance work of the engine is complicated and may take a long time.

In addition, an interlocking wire and a member for supporting the interlocking wire are required, and the number of parts is increased, which may increase the manufacturing cost and the manufacturing process.

[0007]

Therefore, according to the present invention, in a rice transplanter having a bonnet disposed on an upper portion of a body frame and an engine housed in the hood, a choke valve provided on a carburetor of the engine is provided. The base end of the choke rod is connected continuously, a choke lever is provided at the tip of the choke rod, and the choke valve can be opened and closed by moving the choke lever forward and backward, while it is attached to and detached from a part of the bonnet A free cover body is provided, a choke lever insertion hole for inserting a choke lever is formed in the cover body, and the cover body is configured to be detachable from the hood by moving the cover body in a direction in which the choke lever moves forward and backward.

Further, a cleaner insertion hole for inserting an air cleaner of the engine is formed integrally with the choke lever insertion hole in the cover body.

The choke rod is supported by an air cleaner of the engine.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An agricultural working machine according to the present invention has a bonnet disposed on an upper part of a body frame, accommodates an engine inside the bonnet, and has a choke rod provided on a choke valve provided on a carburetor of the engine. The base end is continuously provided, a choke lever is provided at the tip of the choke rod, and the choke valve can be opened and closed by operating the choke lever forward and backward.

[0011] Therefore, the conventional interlocking wire and members for supporting the interlocking wire are not required, so that the number of parts can be reduced, and the manufacturing cost and the manufacturing process can be reduced.

Also, a detachable cover body is provided in a part of the hood, and a choke lever insertion hole for inserting a choke lever is formed in the cover body, and the cover body is moved in the direction of movement of the choke lever. The cover can be attached to and detached from the bonnet simply by moving the cover in the direction of movement of the choke lever, making assembly and maintenance work easy, and workability is improved. Can be improved.

Further, by forming a cleaner insertion hole for inserting an air cleaner of the engine into the cover body integrally with the choke lever insertion hole, processing of the cover body can be facilitated. The number of holes formed in the cover body is reduced, and the strength of the cover body can be improved.

Further, by supporting the choke rod on the air cleaner of the engine, the structure for supporting the choke rod can be simplified, and the workability of assembly can be improved.

In addition, the starter lever of the recoil starter and the choke lever of the choke valve, which are normally located near the air cleaner, can be operated continuously, so that the operability can be improved.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, a riding rice transplanter 1 as an agricultural working machine according to the present invention is configured such that a planting machine 3 can be moved up and down via a lifting mechanism 4 at a rear portion of a traveling machine body 2 which is configured to be able to run on its own. It is connected continuously.

As shown in FIG. 1, the traveling body 2 has a traveling section 6 provided at a lower portion of the body frame 5, and a motor section 7 provided at an upper front side of the body frame 5. A driving operation unit 8 is disposed immediately behind the vehicle.

As shown in FIGS. 1 and 2, the body frame 5 includes a pair of left and right rectangular main pipes 9 and 10 extending in the front-rear direction and a front end portion of the main pipes 9 and 10. A main frame structure 11 having a U-shape in plan view is formed from a front pipe (not shown) having a rectangular cross-section installed in the main frame structure. The connecting rods 12 and 13 are attached downward, respectively, and a pair of left and right cylindrical sub pipes 14 and 15 extended in the front-rear direction and the middle of the sub pipes 14 and 15 are provided at the lower ends of the connecting rods 12 and 13 respectively. Cylindrical connecting pipe 16 installed between the parts
And a lower frame component 17 composed of the following. In the figure, reference numeral 18 denotes a connecting pipe having a rectangular cross section.

The body frame 5 is attached to the rear ends of the sub-pipes 14 and 15 between the rear end of the lower frame member 17 and the rear end of the main frame member 11 so as to be inclined forward and upward. A column-shaped rear frame structure 21 composed of a pair of left and right cylindrical rear pipes 19, 19 and a cylindrical upper pipe 20 erected between upper ends of the rear pipes 19, 19 is further provided in series. Is located between the rear frame member 21 and the lower frame member 17 in the middle of the upper pipe 20 and the connecting pipe 16.
An upper frame member 23 composed of a pair of left and right inclined pipes 22 and 22 for connecting the middle part in an inclined manner of front low and rear high. In the figure, reference numeral 24 denotes a gate-shaped seat support pipe laid across the middle of the inclined pipes 22,22.

As shown in FIGS. 1 and 2, the motor unit 7 has a flat plate-like engine mounting table 25 provided between the front sides of the left and right main pipes 9 and 10 of the body frame 5. An engine 26 as a prime mover is mounted on the upper part of the vehicle, and a transmission case 27 as a transmission mechanism is mounted on a lower part of the engine mounting base 25, and the engine 26 is connected to the transmission case 27 in an interlocked manner. The planting machine 3 is operatively connected to the engine 26 via a planting interlocking mechanism 28.

The motor unit 7 transmits the power of the engine 26 to the traveling unit 6 and the planting machine 3 via the transmission case 27.

The motor unit 7 has a fuel tank (not shown) disposed directly above the engine 26 and covers the fuel tank and the engine 26 with a bonnet 29. Spare seedling stands 30, 30 for placing spare seedlings at side positions are provided.

The engine 26 is, as shown in FIGS.
A carburetor (not shown) is provided with a cylindrical intake pipe 45 protruding rightward and rearward. An air cleaner 46 is attached to the tip of the intake pipe 45, and an engine is provided in the middle of the intake pipe 45.
A choke mechanism 47 for adjusting the amount of intake air at the time of starting the engine 26 is provided.

The air cleaner 46 covers a disk-shaped cleaner lid 49 on a cylindrical cleaner casing 48 connected to the end of an intake pipe 45, and the cleaner lid 49 has a mesh-shaped cleaner lid. A suction hole 50 is formed, and a filter is accommodated inside the cleaner casing 48.

The choke mechanism 47 has a cylindrical valve casing 51 mounted in the middle of the intake pipe 45, and a choke valve 52 for adjusting the amount of intake air inside the valve casing 51.
Is arranged rotatably, the base end of a substantially L-shaped arm 53 is attached to the tip of the choke valve 52, and a connecting body 54 is protruded upward at the tip of the arm 53, The base end of the choke rod 56 is inserted through the insertion hole 55 formed in the connector 54 so as to be able to advance and retreat, and the choke lever is inserted into the tip end of the choke rod 56.
57 is installed. In the figure, 58 is a fixing screw.

The length of the choke rod 56 can be adjusted by moving the choke rod 56 forward and backward and then fixing it with a fixing screw 58.

The choke rod 56 is supported midway by an air cleaner 46. That is, the base end of a substantially L-shaped support 59 is attached to the rear of the cleaner casing 48 of the air cleaner 46, the boss 60 is attached to the tip of the support 59, and the choke rod 56 is inserted through the boss 60. ing.

By moving the choke lever 57 forward and backward to open and close the choke valve 52, the amount of intake air drawn into the carburetor of the engine 26 can be increased or decreased.

As described above, in this embodiment, the base end of the choke rod 56 is connected to the choke valve 52 provided on the carburetor of the engine 26, and the choke lever 57 is provided at the tip of the choke rod 56. Since the choke valve 52 can be opened and closed by moving the choke lever 57 forward and backward, there is no need for a conventional interlocking wire or a member for supporting the same, and the number of components can be reduced. Thus, manufacturing costs and manufacturing steps can be reduced.

Further, in this embodiment, since the choke rod 56 is supported by the air cleaner 46 of the engine 26, the support structure of the choke rod 56 can be simplified, and the assembling workability can be improved. .

Further, the starter lever of the recoil starter 66, which is normally located near the air cleaner 46, and the choke lever 57 of the choke valve 52 are arranged at positions close to each other, and the starter lever and the choke lever 57 are continuously connected. Operability, and operability can be improved.

The bonnet 29 is configured to be separable from a bonnet main body 61 disposed above the front end of the body frame 5 and a cover body 62 detachably attached to a rear portion of the bonnet main body 61. In the figure, 63 is a mounting screw body.

The cover body 62 has a choke lever on the right side.
A choke lever insertion hole 64 for inserting the 57 and a cleaner insertion hole 65 for inserting the air cleaner 46 are integrally formed.

Then, the cover body 62 is moved in the direction in which the choke lever 57 is moved forward and backward (front-back direction), so that the choke lever 57 is inserted into the choke lever insertion hole 64.
And the cover body 62 can be attached to and detached from the hood body 61 while the air cleaner 46 is inserted through the cleaner insertion hole 65.

As described above, in this embodiment, the hood 29
A detachable cover body 62 is provided in a part of the
In addition, a choke lever insertion hole 64 for inserting the choke lever 57 is formed, and the cover body 62 is configured to be detachable from the hood 29 by moving the cover body 62 in the direction of movement of the choke lever 57. The cover body 62 can be attached to and detached from the bonnet 29 simply by moving the 62 in the direction of movement of the choke lever 57, so that the assembling work and the maintenance work are easy, and the workability can be improved.

Further, in this embodiment, since the cleaner insertion hole 65 for inserting the air cleaner 46 of the engine 26 is formed integrally with the choke lever insertion hole 64 in the cover body 62, Can be easily processed, the number of holes formed in the cover body 62 can be reduced, and the strength of the cover body 62 can be improved.

As shown in FIG. 1, the traveling section 6 includes a pair of left and right front axle cases 31, 32 on a transmission case 27.
The front axle cases 31 and 32 are linked to the front wheel 33, and the transmission case 27 is linked to the rear axle case 34.
A pair of right and left rear wheels 35, 35 are linked to 34.

In this manner, the power of the engine 26 is transmitted from the engine 26 to the transmission case 27, and transmitted from the transmission case 27 to the front axle cases 31, 32,
While transmitting from the front axle cases 31, 32 to the front wheels 33, 33, transmitting from the transmission case 27 to the rear axle case 34, and transmitting from the rear axle case 34 to the rear wheels 35, 3
5

As shown in FIG. 1, the driving operation unit 8 has a steering wheel 36 rotatably disposed on the top of the hood 29, and a seat immediately behind the steering wheel 36.
A shift lever 38 for shifting the traveling body 2 is arranged at the left side of the seat 37 so as to be swingable in the front-rear direction, while a right side position of the seat 37 is arranged. A lifting / lowering / shifting lever 39 for raising and lowering the planting machine 3 and performing a shift operation of the two-stage high-low belt type transmission mechanism is arranged to be swingable in the front-rear direction. In the figure, 40 is a casing body.

The driving operation section 8 is provided at the left side position of the bonnet 29 so as to be capable of swinging the auxiliary brake lever 41 in the front-rear direction, and at the left side position of the auxiliary brake lever 41, the clutch pedal 42 is provided. Is arranged so that it can be depressed and operated.
A pair of left and right foot-type brake pedals 43 and 44 are arranged so that they can be depressed and operated at the right side position of the bonnet 29,
The base ends of the brake pedals 43 and 44 are rotatably supported by the connecting pipe 16 of the lower frame structure 17.

[0042]

The present invention is embodied in the form described above and has the following effects.

(1) In the present invention, the base end of the choke rod is connected to the choke valve provided on the carburetor of the engine, the choke lever is provided at the tip of the choke rod, and the choke lever is moved forward and backward. As a result, the choke valve can be opened and closed, eliminating the need for a conventional interlocking wire and members for supporting it, reducing the number of parts and reducing manufacturing costs and manufacturing processes. can do.

A detachable cover body is provided in a part of the hood, and a choke lever insertion hole for inserting a choke lever is formed in the cover body, and the cover body is moved in the direction of movement of the choke lever. The cover body can be attached to and detached from the bonnet simply by moving the cover body in the direction of movement of the choke lever, making assembly and maintenance work easy and easy. Performance can be improved.

(2) In the present invention, since the cleaner insertion hole for inserting the air cleaner of the engine is integrally formed with the choke lever insertion hole in the cover body,
The processing of the cover body can be facilitated, the number of holes formed in the cover body can be reduced, and the strength of the cover body can be improved.

(3) In the present invention, since the choke rod is supported by the air cleaner of the engine, the support structure of the choke rod can be simplified, and the assembling workability can be improved.

Further, the starter lever of the recoil starter normally located near the air cleaner and the choke lever of the choke valve can be operated continuously, and the operability can be improved.

[Brief description of the drawings]

FIG. 1 is a left side view showing a rice transplanter according to the present invention.

FIG. 2 is a plan view showing an airframe.

FIG. 3 is a right side view showing the choke valve.

FIG. 4 is a sectional view of the same.

FIG. 5 is a rear view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Riding rice transplanter 2 Traveling body 3 Planting machine 4 Lifting mechanism 5 Aircraft frame 6 Traveling part 7 Engine part 8 Operation operation part 26 Engine 27 Transmission case 29 Bonnet 46 Air cleaner 47 Choke mechanism 52 Choke valve 56 Choke rod 57 Choke lever 61 Bonnet body 62 Cover body 64 Choke lever insertion hole 65 Cleaner insertion hole

Claims (3)

[Claims] A bonnet (2) is mounted on an upper part of an airframe (5).
In a rice transplanter with an engine (26) housed inside the hood (29), a choke valve (5
The choke rod (56) is connected to the base end of the choke rod (56), a choke lever (57) is provided at the tip of the choke rod (56), and the choke valve (57) is moved forward and backward by operating the choke valve (57). (52) is configured to be openable and closable, while a detachable cover body (62) is provided on a part of the hood (29), and a choke for inserting a choke lever (57) through the cover body (62). A choke for an agricultural work machine characterized in that a lever insertion hole (64) is formed so that the cover body (62) can be attached to and detached from the bonnet (29) by moving the cover body (62) in the direction of movement of the choke lever (57). Lever mounting structure. 2. A cleaner insertion hole (65) for inserting an air cleaner (46) of the engine (26) into the cover body (62).
The choke lever mounting structure for an agricultural work machine according to claim 1, wherein the hole is formed integrally with the choke lever insertion hole (64). 3. The choke lever mounting structure for an agricultural working machine according to claim 1, wherein the choke rod (56) is supported by the air cleaner (46) of the engine (26).