JPH09149716A - Bonnet structure in sulky rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject simplified bonnet structure facilitating detachment of the bonnet and improved in maintenance capability, so designed that a junction is linked detachably, with a knobbed bolt, to a bonnet support frame raisedly provided from a machine body frame. SOLUTION: A bonnet 21 is dividedly formed into two, front-half portion 21a and rear-half portion 21b, and the lower end edges of the respective portions 21a, 21b are provided with inserting projection pieces 21c, 21d, 21e, which are then threadably inserted into the corresponding holes 49, 50, 51 provided on the upper end edge of a bonnet support stand 45 to mutually superpose and connect, inside and outside, the rear edge part of the front-half portion 21a and the front edge part of the rear-half portion 21b, and the resultant junction is linked detachably, with a knobbed bolt 58, to a bonnet support frame 54 raisedly provided from a machine body frame 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bonnet structure for a riding rice transplanter.

[0002]

2. Description of the Related Art Conventionally, as one form of a bonnet structure for a passenger rice transplanter, a bonnet is divided into a front half forming body and a rear half forming body, and the front half forming body is formed by standing up from a body frame. While it is detachably attached to the bonnet support frame with knob bolts, the latter half formation body is
Some handle columns are fixed with screws.

[0003]

However, in the bonnet structure described above, the front half forming body can be removed by removing the knob bolt, but since the rear half forming body is screwed, If you don't use
There was a work complexity that it could not be removed.

Further, when attaching the former-half formed body and the latter-half formed body that have been once removed, since there is no means for positioning the formed bodies at the mounting positions, it takes time and labor for the positioning work. However, there was work complexity.

[0005]

Therefore, in the present invention, a casing body that doubles as a step portion and a floor surface portion is stretched on a machine body frame, and an opening for projecting an engine or the like is provided at a front portion of the casing body. In the bonnet structure of a passenger rice transplanter, the bonnet is detachably mounted on the bonnet support stand by integrally forming a tubular bonnet support stand by rising upward from the periphery of the opening. It is divided into two parts, that is, a half-form body and a half-form body, and a protrusion piece for insertion is formed on the lower end edge of each formation body, and each protrusion piece is inserted into an insertion hole formed on the upper end edge of the bonnet support. A bonnet formed by inserting and detaching the front half forming body and the rear end edge portion of the front half forming body and the front end edge portion of the rear half forming body so as to be overlapped inward and outward, and at the same time the connection portion is raised from the machine body frame. To support frame It linked detachably by looking bolt there is provided St. hood structure of riding rice transplanter according to claim.

Further, according to the present invention, a connecting notch groove extending forward and upward is formed in the middle of the left and right rear end edges of the front half forming body, and the left and right front end edges of the rear half forming body are formed. While forming a connecting hole in the middle of the part, attach a pair of left and right connecting bodies having connecting holes to the bonnet support frame formed by rising from the machine frame, and connecting the above-mentioned connecting holes to the connecting holes of each connecting body. The holes and the connecting notch groove are matched, and the front and rear half forming bodies are detachably connected to the connecting body by the bolts with knobs, the fuel tank is arranged in the upper part of the bonnet, and the ceiling wall of the fuel tank It rises further upward to form a cylindrical oil fill port, the upper end opening surface of the oil fill port is made substantially horizontal, and a ring-shaped receiving gutter is provided on the outer peripheral surface of the oil filling port, while Of the front half formation of the bonnet located directly above Part is formed with an opening for refueling that opens the entire upper surface of the receiving gutter, and an opening / closing lid is attached to the opening for refueling so that it can be opened and closed. It also has features.

[0007]

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

1 and 2 is a riding rice transplanter according to the present invention. The riding rice transplanter A has a planting portion 2 at the rear of a traveling portion 1 capable of self-propelling and an elevating link mechanism 3. The planting part 2 can be lifted and lowered by a lifting hydraulic cylinder 4.

As shown in FIGS. 1 and 2, the traveling section 1
An engine 11 is provided at a front portion of the body frame 10, and an operating portion 12 is provided at a rear portion.

Then, the mission case 13 is attached to the lower part of the front part of the body frame 10 by interlocking with the engine 11,
Left and right front axle cases 15 and 15 are provided to project laterally outward from the left and right sides of the mission case 13, and front wheels 16 and 16 are attached to the tips of the cases 15 and 15.

A rear axle case 17 is attached to the rear portion of the machine body frame 10, and rear wheels 18, 18 are attached to the left and right ends of the rear axle case 17, respectively.

The mission case 13 and the rear axle case 17 are interlockingly connected via a transmission shaft (not shown).

As shown in FIGS. 1 and 2, a casing body 20 having left and right step portions, a floor surface portion, a seat support portion, and left and right rear fender portions is stretched on the body frame 10. The casing body 20 is integrally molded of synthetic resin having high rigidity such as FRP.

A bonnet 21 is provided at the center of the front side of the casing body 20.
And a fuel tank 22 arranged directly above the engine 11,
The steering shaft 23 of the driving unit 12 described later is covered.

Further, the above-mentioned operation unit 12 is shown in FIG. 1 and FIG.
As shown in FIG. 3, a steering shaft 23 is provided upright immediately after the engine 11, a handle 24 is attached to the upper end of the steering shaft 23, and a seat 26 is formed at the rear of the handle 24 and a seat 26 is formed at the rear of the casing body 20. It is directly attached and arranged on the portion 43.

Further, 30 is a clutch pedal arranged on the left side of the bonnet 21, 31 is a brake pedal arranged on the right side of the bonnet 21, and 32 is a shift lever arranged on the left side of the seat 26. , 33 are auxiliary shift levers arranged on the right side of the seat 26.

In such a structure, the gist of the present invention lies in the structure of the casing body 20, and the casing body 20 is constructed as follows.

That is, as shown in FIGS. 3 and 4, the casing body 20 has an opening 40 formed in the front part for projecting the engine and the like, and left and right step parts formed on the left and right sides of the opening 40. 41, 41, a floor surface portion 42 formed in the middle, a seat support portion 43 formed in the rear portion, and left and right rear fender portions 44, 44 formed on the left and right sides of the seat support portion 43, At the rear position of the opening 40, the front casing body forming portion 61
And a midway portion and a rear side casing body forming portion 62 are formed in two parts.

Then, between the left and right step portions 41, 41, a front side opening forming recess 40a which forms most of the opening 40 is formed.
Is formed by curving forward in a concave shape, and the rear side opening forming recess 40b forming the rear end edge of the opening 40 at the front end edge of the floor surface portion 42 is formed by curving backward in a concave shape, Front-side opening forming recess 40a and rear-side opening forming recess 40b
By forming the front side wall part 45a and the rear side wall part 45b upwardly and integrally with each peripheral edge of each of them, and connecting both wall parts 45a, 45b by attaching and detaching the releasable seals in the front-rear direction. The tubular bonnet support 45 is formed, and the upper end surface 45c of the bonnet support 45 is substantially horizontal. 45d is a protrusion for fitting a wax seal, 46 is a recess for avoiding interference for avoiding interference with the clutch pedal arm, 47 is a recess for avoiding interference for avoiding interference with the brake pedal arm, and 48 is a shift lever guide. It is a groove.

In this way, the strength of the front side and the rear side of the casing body 20 can be satisfactorily ensured by the front side wall portion 45a and the rear side wall portion 45b, respectively, and
The bonnet 21 can be mounted and mounted substantially horizontally on a tubular bonnet support base 45 formed by connecting both wall portions 45a and 45b from the front and rear, and the bonnet 21 can be reliably supported. I am able to do it.

Further, on the upper end surface of the bonnet support base 45,
As shown in FIG. 3, insertion holes 49, 50, 51 for inserting insertion pieces 21c, 21d, 21e formed at the lower end edge of the bonnet 21 described later into and out of the hood 21 are formed.

As shown in FIG. 5, the bonnet 21 is detachably attached to a bonnet support 45, and the bonnet 21 is divided into a front half forming body 21a and a rear half forming body 21b. Inserting protrusions on the lower edge of each forming body 21a, 21b
21c, 21d, 21e are formed, and each insertion protrusion 21c, 21d, 21e
Insertion hole formed at the upper edge of the bonnet support base 45
The rear end edge portion of the front half-portion forming body 21a and the front end edge portion of the rear half-portion forming body 21b are superposed inwardly and outwardly so that they can be connected by being inserted into and removed from 49, 50, and 51 so that they can be inserted and removed.

Then, in the middle of the left and right rear end edges of the front half forming body 21a, a connecting cutout groove 5 extending forward and upward is formed.
2, 52 and forming the connecting holes 53, 53 in the middle of the left and right front end edges of the rear half formation body 21b, while forming the bonnet support frame 54 that is formed by rising from the body frame 10, Attach a pair of left and right connecting bodies 56, 56 having a connecting hole 55, align the connecting holes 53, 53 with the connecting notch grooves 52, 52 in the connecting holes 55, 55 of each connecting body 56, 56, The front and rear half forming body 21 is connected to the connecting body 56,56 by the knob bolts 58,58.
Each of a and 21b is detachably connected.

In this way, when performing maintenance of the engine 11 and the like, after loosening the knob bolts 58, 58 a little, the front half forming body 21a is pulled up to the front upper side to insert the insertion projections 21c, 21d. By extracting with the insertion holes 49, 50,
The front half forming body 21a can be easily removed from the bonnet support base 45, and the knob bolts 58, 58 can be connected to the connecting body 5
After removal from 6,56, the latter half forming body 21b can be easily removed from the bonnet support base 45 by pulling up the latter half forming body 21b and pulling out the inserting projection 21e from the insertion hole 51. .

Then, the bonnet 21 can be attached by reversing the procedure opposite to the above.
The work of mounting / removing the bonnet 21 can be performed without tools.

When performing maintenance around the lower portion of the engine 11 and the like, not only the bonnet 21 but also the front side casing body forming portion 61 of the casing body 20 can be removed to improve work efficiency. The front-side casing body forming portion 61 can be easily removed from the rear-side casing body forming portion 62 and the machine body frame 10 by pulling out the front-side casing body forming portion 61 forward. The lower parts of the engine 11 etc. can be greatly opened.

As shown in FIGS. 6 and 7, the fuel tank 22 is disposed above the hood 21 via a hood support frame 54, and is raised above the ceiling wall of the fuel tank 22. In addition to forming the cylindrical oil fill port 70, the upper end opening surface of the oil fill port 70 is made substantially horizontal, and a ring-shaped receiving trough 71 is provided on the outer peripheral surface of the oil filling port 70, while a straight line of the receiving trough 71 is provided. On the upper part of the front half forming body 21a of the bonnet 21 located above, a refueling opening 72 for opening the entire upper surface of the receiving trough 71 is formed, and an opening / closing lid 73 is attached to the refueling opening 72 so as to be openable and closable. The opening / closing lid 73 enables opening and closing of the entire upper surfaces of the fuel filler port 70 and the receiving gutter 71. 73a is an opening / closing lid pivotal support pin, 74 is a fuel display portion, and 75 is a float linked to the fuel display portion 74 in conjunction with each other. The display operation of is linked.

In this manner, the opening / closing lid 73 allows the fuel filler port to be opened.
The 70 is closed from above so that it is possible to prevent rainwater and the like from entering the bonnet 21 and causing the problem of wetting the engine ignition system.

Further, when the opening / closing lid 73 is opened,
70 and a ring-shaped receiving gutter 71 provided on the outer peripheral surface of the fuel filler port 70
So that the entire upper surface of the
It is easy to refuel the 70, and even if there is a refueling leak from the refueling port 70 to the outside, the leaked oil can be received and collected by the receiving trough 71. It is possible to prevent the occurrence of the problem of wetting the ignition system.

[0030]

According to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, the insertion projections formed on the lower end edges of the front half formation body and the rear half formation body forming the bonnet are inserted into the insertion holes formed on the upper end edge of the bonnet support base. By inserting, both the forming bodies can be positioned at the mounting position, and the rear end edge portion of the front half forming body and the front end edge portion of the rear half forming body can be superposed on each other and connected to each other. In the same state, by connecting both the formed bodies to the bonnet support frame with knob bolts, the bonnet can be easily installed without tools.

Further, by reversing the procedure opposite to the above, it is possible to easily remove the bonnet without using a tool.

According to the second aspect of the present invention, in the middle of the left and right rear end edges of the front half portion forming body, a connecting notch groove extending forward and upward is formed, and at the same time, the rear half portion forming body is formed. A connecting hole is formed in the middle of the left right front edge, while a pair of left and right connecting bodies with connecting holes are attached to the bonnet support frame formed by rising from the machine frame to connect the connecting bodies. After aligning the connecting hole and the connecting notch groove with the hole and detachably connecting the front and rear half forming bodies to the connecting body with the knob bolt, respectively, after loosening the knob bolt slightly, By pulling the front half forming body upward and pulling out the insertion projection from the insertion hole,
The front half forming body can be easily removed from the bonnet support, further, after removing the knob bolt from the connecting body, by pulling the latter half forming body upward and pulling out the insertion projection from the insertion hole, The latter half formation can be easily removed from the bonnet support.

Therefore, the bonnet can be easily attached and detached without using a tool with a simple structure.

According to the third aspect of the present invention, since the oil supply port is closed from above by the opening / closing lid, rainwater and the like can be prevented from entering the bonnet to wet the engine ignition system. be able to.

Further, when the opening / closing lid is opened, it is possible to open the fuel filler port and the entire upper surface of the ring-shaped receiving trough provided on the outer peripheral surface of the fuel filler port. It is easy to perform, and even if there is a leakage of oil to the outside from the oil filler port, the leaked oil can be received and collected by the receiving gutter, which also causes the problem of wetting the engine ignition system. Can be prevented.

[Brief description of the drawings]

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

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

FIG. 3 is an explanatory plan view of a casing body.

FIG. 4 is an explanatory side view of the casing body.

FIG. 5 is a side view of the bonnet.

FIG. 6 is a sectional side view illustrating the inside of the bonnet.

FIG. 7 is an explanatory plan view of a fuel tank.

[Explanation of symbols]

 A Passenger rice transplanter 1 Traveling part 2 Planting part 3 Lifting link mechanism 4 Lifting hydraulic cylinder

Claims (3)

[Claims] 1. A casing body that doubles as a step portion and a floor surface portion is stretched on a machine body frame, and an opening for projecting an engine or the like is formed at a front portion of the casing body. In the bonnet structure of the passenger rice transplanter in which the bonnet is detachably mounted on the bonnet support, the bonnet is divided into the front half formation body and the rear half formation body. Formed in two parts, forming a protrusion for insertion on the lower end edge of each formed body, and inserting each protrusion for insertion into the insertion hole formed on the upper end edge of the bonnet support so that it can be freely inserted and removed to form the first half. The rear end edge of the body and the front end edge of the latter half formation body are overlapped inward and outward to connect, and the connection part is detachably attached to the bonnet support frame formed by rising from the body frame with knob bolts. Connect Bonnet structure for riding rice transplanter, characterized in that. 2. A notch for connection extending to the front upper side is formed in a middle part of the left and right rear end edges of the front half forming body, and a middle part of the left and right front end edges of the rear half forming body is formed. On the other hand, while forming the connecting hole, attach a pair of left and right connecting bodies having the connecting hole to the bonnet support frame formed by rising from the body frame,
The connecting hole and the connecting notch groove are aligned with the connecting hole of each connecting body, and the front and rear half forming bodies are detachably connected to the connecting body by knob bolts, respectively. Bonnet structure of passenger rice transplanter. 3. A fuel tank is arranged in the upper part of the bonnet, rises above the ceiling wall of the fuel tank to form a cylindrical fuel filler port, and the upper end opening surface of the fuel filler port is made substantially horizontal. , While a ring-shaped receiving gutter is provided on the outer peripheral surface of the oil filling port, an oil filling opening for opening the entire upper surface of the receiving gutter is provided above the front half formation body of the bonnet located immediately above the receiving gutter. The bonnet structure of a passenger rice transplanter is characterized in that an opening / closing lid is openably and closably attached to the opening for refueling, and the opening / closing lid enables opening / closing of the entire upper surface of the filling port and the receiving gutter.