JP2004345372A - Agricultural working vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an agricultural working vehicle in which an extensive living space can be ensured around a driver's seat 6, a step 13 or the like when a cabin 8 is set, pipes 29 and 30 or wires are arranged on the lower side of a fender 14 from a rear stay 10 of the cabin 8 or the like, and the assembly workability is enhanced thereby. <P>SOLUTION: In the agricultural working vehicle in which the outer side of a rear wheel 7 is covered by the fender 14, a hollow part 28 is formed in the fender 14 in the extending direction of the fender 14. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an agricultural work vehicle such as a tractor that covers a rear wheel with a fender.
[0002]
[Prior art]
Conventionally, there are tractors provided with front and rear columns and a cabin with a roof and a door. (See Patent Document 1)
[0003]
[Patent Document 1] JP-A-2002-68026
[0004]
[Problems to be solved by the invention]
In the prior art, the air-conditioning pipe is provided via a rear pillar mounting portion, but since the pipe needs to be extended forward inside the fender, it is necessary to provide a special cover for covering the pipe, The installation of pipes tends to reduce the foot space for steps and the like, making it difficult to secure the cabin's living space, as well as the trouble of assembling the pipes and reducing the cost. There's a problem.
[0005]
[Means for Solving the Problems]
According to the present invention, in the agricultural work vehicle in which the outside of the rear wheel is covered with a fender, a hollow portion is formed in the fender in a direction in which the fender extends, and the vehicle is extended to the front and rear sides of the fuselage. Air conditioning piping or electrical wiring etc. can be inserted into the hollow part of the fender, for example, compared to a structure in which piping or wiring is installed on the inside upper surface of the fender, the dead space of the fender can be used, for example, the driver's seat and step when the cabin is installed And the like, and a wide living space can be secured in the vicinity, for example, piping or wiring can be provided from the rear pillar of the cabin to the lower side of the fender, and the assembling workability can be improved.
[0006]
Further, a hollow portion is formed by the fender and the auxiliary fender on the lower surface side of the fender, so that the auxiliary fender can be used as a cover for piping or the like to reduce costs and improve the appearance of the fender. In addition, piping and maintenance can be performed by attaching and detaching the auxiliary fender regardless of the cabin.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a side view of the whole, in which 1 is a tractor, in which left and right front wheels 4 are installed on both sides of a hood 3 in which an engine 2 is installed, and a round steering handle 5 is provided at the rear of the hood 3. A driver's seat 6 is disposed behind the steering wheel 5, and left and right rear wheels 7 are provided outside both sides of the driver's seat 6.
[0008]
Further, as shown in FIGS. 1 to 8, a cabin 8 is provided to cover the driving unit such as the steering wheel 5 and the driver's seat 6. Left and right front pillars 9 on which a front window glass and the like are provided, and a rear window glass and the like are provided. Covers the left and right rear pillars 10, the roof material 11 provided above the front and rear pillars 9 and 10, the transparent glass side door 12, the step 13 on which the operator of the driver's seat 6 puts his feet, and the rear wheel 7. A fender 14 is provided in the cabin 8, and a door 12 is provided on the rear pillar 10 via a hinge 15 so as to be openable and closable.
[0009]
Further, both ends of the roof frame 16 are fixed by welding between the upper portions of the front and rear columns 9 and 10, and the roof material 11 is detachably provided on the roof frame 16. A braided handle member 17 made of pipe is provided, and both ends of the handle member 17 are welded and fixed to the front column 9 and the roof frame 16, and the connection reinforcement between the upper portion of the front column 9 and the front portion of the roof frame 16 is performed by the handle member 17. .
[0010]
As is clear from the above, an agricultural work vehicle in which a cabin 8 including left and right front pillars 9, left and right rear pillars 10, and a roofing material 11 supported by front and rear pillars 9 and 10 is provided, and a driver's seat 6 is provided inside the cabin 8. In the above, the strut-shaped handle member 17 is fixed between the roof frame 16 of the roofing material 11 and the front pillar 9. The coupling strength between the front pillar 9 and the roof frame 16 is increased by the handle member 17 to improve the rigidity of the cabin 8 and to provide the front pillar 9 with the strength necessary for mounting the front window and the door 12 while maintaining the strength. The pillar 9 improves the problem that the front view is deteriorated, and the handle member 17 is used as an assist grip when the operator gets on and off the cabin 8, for example, a conventional assist grip provided on the fender 14 of the tractor 1. Is unnecessary, the cost is reduced, and the structural restriction on the fender 14 side is reduced, and the door 12 is mounted. Also, the straight handle member 17 is formed by a pipe frame, and both ends of the handle member 17 are welded and fixed to the roof frame 16 and the front pillar 9, and the handle member 17 is formed into a pipe frame to secure the rigidity. The handle member 17 is processed and formed into a shape that is set well and is functional as an assist grip.
[0011]
Further, as shown in FIGS. 1, 2, 9, 10, and 11, an indoor unit 18 of the air conditioner is provided on the roofing material 11, and is heated by using the cooling water of the engine 2 and driven by the engine 2. The interior temperature of the cabin 8 is adjusted by cooling using a compressor and a cooling condenser, and the side edge of the fender 14 with which the door 12 is brought into contact with the door 12 via the sealing material 19 is bulged to the upper surface side to step. A part 20 is formed, and one end of a rectangular flat stay 21 is engaged with the bent side edge 22 of the fender 14, and the other end of the stay 21 is fixed to the fender 14 by a bolt 23 and a nut 24 which are fixed to the fender 14 by welding. An auxiliary fender 25 which is detachably fixed to the lower surface side of the door 14 and protrudes outward from the fender 14 below the closed door 12 below the door 12 is provided. Between 2 and fender 14 closed by the auxiliary fender 25, prevent entry of muddy water or the like.
[0012]
Further, with the bent side edge 22 of the fender 14 sandwiched between the stay 21 and the auxiliary fender 25, the auxiliary fender 25 is detachably fixed to the stay 21 by a bolt 26 and a nut 27 that are welded and fixed to the stay 21, The stay 21 and the auxiliary fender 25 are fixed to the fender 14 by the bolts 23 and the nuts 24, and the auxiliary fender 25 is detachably provided on the lower surface side of the fender 14 via the plurality of stays 21. A hollow portion 28 is formed by the lower surface side of the rear fender 20 and the upper surface side of the auxiliary fender 25, the hollow portion 28 is extended in the circumferential direction of the rear wheel 7, and air-conditioning piping pipes 29 and 30 for heating or cooling and electric wiring cables And the like are guided from the engine 2 side to the rear pillar 10 side via the hollow portion 28.
[0013]
As is clear from the above, in the agricultural work vehicle in which the outside of the rear wheel 7 is covered by the fender 14, the hollow portion 28 is formed in the fender 14 in the extending direction of the fender 14. Air-conditioning piping pipes 29 and 30 or electric wiring extending to the front and rear sides of the fuselage are inserted through the hollow portion of the fender 14, and for example, compared to a structure in which the piping pipes 29 and 30 or wiring are arranged on the upper surface inside the fender 14. By using the dead space of the fender 14, for example, when the cabin 8 is installed, a large living space around the driver's seat 6 and the step 13 is secured. For example, piping is provided from the rear pillar 10 of the cabin 8 to the lower side of the fender 14. The pipes 29 and 30 or wiring are performed to improve the assembling workability. Further, a hollow portion 28 is formed by the fender 14 and the auxiliary fender 25 on the lower surface side of the fender 14, and the auxiliary fender 25 is used as a cover for the pipes 29 and 30 to reduce costs and improve the appearance of the fender 14. In addition, regardless of the cabin 8, the pipes 29 and 30 and maintenance are performed by attaching and detaching the auxiliary fender 25.
[0014]
Further, as shown in FIGS. 12 to 21, the indoor unit 18 is provided at the front between the outer roof 31 and the inner roof 32 forming the roofing material 11 of the cabin 8, and each roof 31, 32 is provided above the rear pillar 10. A shutter seat plate 33 is provided to partition between the front and rear, an outside air inlet 34 is provided on the lower surface side of the roofing material 11 behind the seat plate 33, and an air filter 35 is provided inside the outside air inlet 34. Outside air is introduced from the outside air inlet 34 to the indoor unit 18 through the outside air port 36. Further, an inside air port 37 for taking in inside air is provided in the inner roof 32 in front of the seat plate 33, an inside air filter 38 is provided in the inside air port 37, and the inside air is introduced from the inside air port 37 to the indoor unit 18 side, and at the same time, on the upper side of the inner roof 32. A shutter mounting table 39 is fixed, and a shutter plate 41 is swingably provided via a hinge 40 on the mounting table 39 to which the seat plate 33 is fixed.
[0015]
Further, the shutter plate 41 is formed in an L shape, and an outside air shutter 42 for opening and closing the outside air port 36 and an inside air shutter 43 for opening and closing the inside air port 37 are formed on the shutter plate 41, and the shutter plate 41 The shutter operation lever 44 is fixed, the lever 44 is projected to the cabin 8 room side via the lever guide 46, and the shutter plate 41 is swung up and down around the hinge 40 by the operation of switching the inside and outside air of the lever 44, and the outside air shutter is opened. When the outside air port 36 is closed by 42, the inside air port 37 is opened, and the air in the cabin 8 room passes through the inside air port 37 through a duct 46 formed between the roofs 31 and 32 surrounded by a seal member 45 having a ring shape in plan view. To the indoor unit 18 side. On the other hand, when the inside air port 37 is closed by the inside air shutter 43 by the operation of the lever 44, the outside air port 36 is opened, and the outside air of the intake 34 is taken into the indoor unit 18 from the outside air port 37 through the duct 46.
[0016]
As is apparent from the above description, in the agricultural work vehicle equipped with the cabin 18, the outside air shutter 42 that opens and closes the outside air port 36 that takes in the outside air, and the inside shutter 43 that opens and closes the inside air port 37 that takes in the inside air of the cabin 8 are connected to the hinge 40. And is formed by a single shutter plate 41 attached to the shutter plate. Then, for example, both the outside air shutter 42 and the inside air shutter 43 are formed simply by bending the shutter plate 41 into an L-shape or the like. The switching between intake of outside air and inside air is performed by a swing operation of the shutter plate 41 or the like, thereby improving the assembling and handling. Further, a shutter plate 41 is provided inside the roof of the cabin 8, a grip portion of the operation lever 44 is protruded into the cabin 8, the operation lever 44 is fixed to the shutter plate 41, and the shutter plate 41 and the operation lever 44 are connected to each other. The hinge 40 is assembled as a single unit component. For example, the shutter plate 41 is supported by the single hinge 40 and the shutter plate 41 is switched by operating the lever 44, thereby simplifying the structure and reducing the cost.
[0017]
【The invention's effect】
As is apparent from the above embodiment, the present invention relates to an agricultural work vehicle in which the outside of the rear wheel 7 is covered by the fender 14, wherein the hollow body 28 is formed in the fender 14 in the extending direction of the fender 14. Air conditioning piping 29/30 or electrical wiring extending to the front and rear sides can be inserted into the hollow portion of the fender 14. For example, compared to a structure in which the piping 29/30 or wiring is provided on the upper inside surface of the fender 14, For example, when the cabin 8 is installed, a large living space around the driver's seat 6 and the step 13 can be secured. For example, a pipe 29 is provided from the rear pillar 10 of the cabin 8 to the lower side of the fender 14. 30 or wiring, so that the assembling workability can be improved.
[0018]
Further, the hollow portion 28 is formed by the fender 14 and the auxiliary fender 25 on the lower surface side of the fender 14, and the auxiliary fender 25 is used as a cover for the pipes 29 and 30, thereby reducing the cost and reducing the fender. (14) It is possible to improve the external appearance, etc., and to perform the maintenance of the pipes 29 and 30 by attaching and detaching the auxiliary fender 25 regardless of the cabin 8.
[Brief description of the drawings]
FIG. 1 is a side view of a tractor.
FIG. 2 is a side view of the cabin.
FIG. 3 is an enlarged view of FIG.
FIG. 4 is an explanatory view of a handle member.
FIG. 5 is an explanatory view for mounting the same part.
FIG. 6 is a perspective view of the same part.
FIG. 7 is an enlarged view of the previous figure.
FIG. 8 is a top perspective view of the cabin.
FIG. 9 is a sectional view of a fender unit.
FIG. 10 is an exploded explanatory view of the same.
FIG. 11 is a bottom perspective view of the same.
FIG. 12 is an explanatory diagram of opening of an outside air shutter.
FIG. 13 is an explanatory view of the inside air shutter opening.
FIG. 14 is a view taken along the line AA of FIG. 13;
FIG. 15 is a BB view.
FIG. 16 is a plan view of a shutter plate portion.
FIG. 17 is an explanatory plan view of the cabin.
FIG. 18 is a front perspective view of a shutter plate portion.
FIG. 19 is a rear perspective view of the same.
FIG. 20 is an explanatory diagram of an operation lever mounting portion.
FIG. 21 is an enlarged view of FIG.
[Explanation of symbols]
7 Rear wheel 14 Fender 25 Auxiliary fender 28 Hollow part

Claims (2)

An agricultural work vehicle in which the outside of a rear wheel is covered by a fender, wherein an aerial portion is formed in the fender in an extending direction of the fender. The agricultural work vehicle according to claim 1, wherein a hollow portion is formed by the fender and an auxiliary fender on a lower surface side of the fender.

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