JP2002160671A - Mounting structure of mud guard in work vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To freely change a constitution of a fender or a layout of an operating lever and the like. SOLUTION: A tractor 10 has an operating lever 42 arranged in the vicinity of a fender 21 covering the circumference of a rear wheel 18 and supports a work machine 26 in a manner capable of hydraulical lifting, and a mud guard 44, 45 partitioning an inner side space of the right/left rear wheels 18, 18 is mounted in a transmission case 15, respectively separately from the fender 21 in the lower part of the fender 21. By these mud guards 44, 45 mud scattered from the rear wheels 18, 18 is prevented from springing out upward from a clearance of notched parts 34a, 35a for taking out of the operating lever 42 or the like formed in right/left side parts of the fender 21. By forming the fender 21 and the mud guards 44, 45 into a separate unit, no influence is received at all from a shape or the like of the mud guards 44, 45, and a constitution of the fender 21 and a layout or the like of the operating lever 42 can be freely selected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure of a mudguard plate in a working vehicle, and more particularly, to a structure below a fender.
The present invention relates to a mounting structure of a mud plate in a working vehicle to which a mud plate partitioning a space inside a rear wheel is mounted.

[0002]

2. Description of the Related Art FIGS. 5 and 6 show a working vehicle such as a tractor. This tractor 10 has an engine 1 at the front.
2, a clutch housing 13, a center case 14, and a transmission case 15 are integrally connected to a rear portion of the engine 12, and the front wheel 16 and the rear wheel 18 are driven by the driving of the engine 12. . An upper part of the clutch housing 13, the center case 14, and the transmission case 15 constitutes a body frame 20, and a rear part is provided with a fender frame 21, a seat 23, a steering column 24, and a steering wheel 25 on the upper part.

[0003] A working machine 26 is connected to the rear of the machine, and the working machine 26 is lifted and lowered by hydraulic pressure by a lift arm 28. In addition, a radiator fan 30 and a battery (not shown) are arranged on the front of the engine 12 at the front of the body, and the outer peripheral space of the engine 12, the radiator fan 30 and the like is covered with a bonnet 32.

On the left side of the seat 23, a main shift lever and an auxiliary shift lever (or shuttle lever), not shown, are provided. On the right side of the seat 23, for example, a hydraulic pressure for controlling the lifting and lowering of the work machine 26 is provided. An operation lever and a cultivation depth adjusting lever (not shown) are provided, and side panels 34 and 35 disposed in proximity to the operation lever include a tilt setting volume 36 for adjusting the angle of the work machine 26 and a tilt automatic volume when a switch is turned on. An automatic tilt switch 38 for operating the device is provided. The tilt setting volume 36 and the tilt automatic switch 38 are connected to a control computer (not shown) by a wiring member.

[0005]

The fender frame 21 serves to cover the periphery of the rear wheel 18, and the mud adhering to the rear wheel 18 is provided by attaching a mudproof member to the fender frame 21. Has a function of preventing scattering around the fender.
If the shape 1 is freely changed in design or the arrangement is changed, it is difficult to satisfy both the above-mentioned functions including the arrangement relationship of the operation lever, so that the degree of freedom in design, layout and the like is reduced. I couldn't take it. As described above, the conventional fender frame 21 has a problem that a large number of peripheral parts are also fixed, and a large number of steps are required for assembly and disassembly.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a mudguard plate for a working vehicle in which the configuration of a fender or the layout of an operation lever can be freely changed. An object of the present invention is to provide a mounting structure.

[0007]

In order to achieve the above-mentioned object, the invention according to claim 1 provides a working machine (26) supported on a traveling body (20) so as to be able to move up and down, and a power of an engine (12). A transmission for transmitting the gears to the wheels (16, 18) by shifting the speed, and a fender (2) covering the periphery of the rear wheel (18).
1) is disposed in the vicinity of the work machine (26) by hydraulic pressure
And a control lever (42) for controlling the lifting and lowering of the rear wheel (18) in the working vehicle (10) below the fender (21) and separately from the fender (21). A mudguard plate (44, 45) for partitioning the transmission is mounted on a transmission case (15) that houses the transmission.

[Operation] The working vehicle (1) to which the present invention is applied
0) is provided in the vicinity of the fender (21) and has an operation lever (42) for controlling the lifting and lowering of the work machine (26) by hydraulic pressure, and below the fender (21), Separately from the above, mudguard plates (44, 45) that partition the inner space of the left and right rear wheels (18) are attached to the transmission case (15), respectively. This mud plate (44, 4
5), mud scattered from the rear wheels (18, 18)
The control lever (42, etc.) formed on the left and right sides of the fender (21) protrudes upward from the gap between the notch (34a, 35a) and the control lever (42, etc.), or the transmission case (15) side. Spattering is prevented.

Further, the fender (21) and the mudguard (4)
4, 45), it is attached separately, without being affected by the shape of the mud plate (44, 45) at all.
It is possible to freely select the configuration of the fender (21), the layout of the operation lever (42 and the like), and the like.

The reference numerals in parentheses described above are for the purpose of comparing the drawings, and do not limit the present invention in any way.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. The same or corresponding members as in the conventional example are denoted by the same reference numerals.

FIG. 1 is a cross-sectional view of a tractor to which the present invention is applied, as viewed from the rear. As described above, the tractor 10 has a working machine 26 supported at the rear of the machine by hydraulic pressure so as to be able to move up and down. , The power of the engine 12 is changed and the wheels 1
A transmission case 15 containing a transmission for transmitting to the transmissions 6 and 18 is provided. The fender 21 covering the rear wheel 18 is provided on the left and right sides of the fuselage.
Side panels 34 and 35 are formed integrally with the vehicle. A speed change lever 40 is provided on the left side panel 34 of the fuselage, and a hydraulic lever 42 is provided on the right side panel 35 of the fuselage. I have. Based on the operation of the hydraulic operating lever 42, the working machine 26 is raised and lowered by hydraulic pressure by a control computer (not shown) arranged at the rear of the side panel 35 on the right side of the machine or below the seat 23.

In the present embodiment, a mud plate that partitions the space inside the rear wheel 18 is attached to the transmission case 15 below the fender 21 and separately from the fender 21.

As shown in FIG. 1, below each of the fenders 21 on the left and right sides thereof, separately from the fenders 21,
Mud plates 44a, 44b are attached to the transmission case 15 so as to partition the inner space of the rear wheel 18 in the left-right direction of the machine.

The left mudguard plate 44 has a flat side wall 44a for partitioning the inner space of the rear wheel 18, and a side wall 44a.
Inclined portion 44 bent obliquely outward at the upper part of
b and a top plate portion 44c integrally welded at the inclined portion 44b and extending in the same direction, further extending in the horizontal direction, and protecting the lower portion of the side panel 34 from mud.
4a is attached to the transmission case 15 by three bolts. Further, the right mudguard plate 45 is attached to the rear wheel 18.
And a top plate portion 44b that is bent obliquely upward at an upper portion of the side wall portion 45a and protects a lower portion of the side panel 35 from mud. The portion 45a is attached to the transmission case 15 with three bolts.

That is, as shown in FIGS. 2 to 4, the structure for attaching the left mudguard plate 44 to the transmission case 15 is provided so as to protrude from the front of the transmission case 15 to the left and to both ends. A long hexagonal prism 48 with screws formed,
And a nut 49, a bolt 50 and a nut 51 projecting leftward from an intermediate portion of the transmission case 15 in the front-rear direction, and a bolt 52 at the rear of the transmission case 15. At this time, a mounting plate 46 bent in a crank shape is integrally fixed to a rear portion of the left mudproof plate 44, and the mounting plate 46 is mounted to the transmission case 15 by bolts 52. .

Similarly, the right mudguard plate 45 protrudes from the front of the transmission case 15 to the right side thereof, and has a long hexagonal column 54 having screws formed at both ends, and a nut 55. A bolt 56 at an intermediate portion in the front-rear direction of the transmission case 15 and a bolt 58 at a rear portion of the transmission case 15
And attached by. At this time, the right mudguard plate 4
An attachment plate 47 bent in an L-shape is integrally fixed to a rear portion of the transmission 5, and the attachment plate 47 is attached to the transmission case 15 by bolts 58.

As described above, since the mudguard plates 44 and 45 are attached to the transmission case 15 separately from the fender 21, the structure of the mudguard plates 44 and 45 is not affected and the fender 21 is not affected. And the arrangement of the operation levers 40 and 42 can be freely changed.

Next, the operation will be described.

According to the present embodiment, since the mud barriers 44 and 45 are attached below the fender 21 and inside the rear wheel 18, mud scatters from the rear wheel 18 to the transmission case 15. Is prevented. By these mud plates 44 and 45, mud scattered from the rear wheel 18 is formed between the notch 34a formed on the left side panel 34 and the shift operation lever 40 or on the right side panel 35. Jumping out of the gap between the cut-out portion 35a and the hydraulic operation lever 42 is prevented.

Further, since the fender 21 and the mud plates 44 and 45 are separately mounted, respectively, the mud plates 44 and 45 are separated from each other.
The structure of the fender 21 can be freely designed without being affected by the fender 45, and the layout of each operation lever and the like can be freely selected. Thus, for example, the fender 21 itself can be integrally formed of a synthetic resin, thereby reducing the number of components and improving maintainability.

[0022]

As described above, according to the first aspect of the present invention, the mudguard plate that partitions the inner space of the rear wheel is attached to the transmission case below the fender and separately from the fender. This prevents the mud from being scattered above the fender and the mission case by the mudguard plate, and since the mudplate and the fender are separate bodies, the mudguard is not affected by the mudplate. The configuration or the layout of the operation lever can be freely changed.

Further, since the mudguard plate and the fender are mounted separately, for example, the fender itself can be integrally formed of synthetic resin, thereby reducing the number of parts and improving maintainability. Can be achieved.

[Brief description of the drawings]

FIG. 1 is a sectional view of a tractor to which the present invention is applied, as viewed from the rear.

FIG. 2 is a plan view of a fender portion of the tractor.

FIG. 3 is a side view of the same.

FIG. 4 is a plan view showing details of an attached state of a mud plate.

FIG. 5 is a side view of the tractor.

FIG. 6 is a plan view of the tractor.

[Explanation of symbols]

 Reference Signs List 10 Tractor 12 Engine 15 Transmission case 18 Rear wheel 20 Body frame 21 Fender frame 26 Work implement 34 Side panel (left) 35 Side panel (right) 42 Hydraulic operation lever 44 Mud plate (left) 45 Mud plate (right) 48 , 54 Hexagonal prism 49, 51, 55 Nut 50, 52, 56, 58 Bolt

Claims (1)

[Claims] 1. A work machine supported on a traveling machine so as to be able to move up and down, a transmission for shifting the power of an engine and transmitting the power to wheels, and a work machine arranged near a fender that covers the periphery of a rear wheel, and is arranged by hydraulic pressure. And a control lever for raising and lowering the vehicle, wherein a mudguard plate partitioning an inner space of the rear wheel is attached to a transmission case that houses the transmission below the fender and separately from the fender. Further, a mounting structure of a mudguard plate in a working vehicle.