JPH0111543Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a two-axle, four-wheel type tractor, which is used as a running power vehicle for agricultural purposes.

(Prior art) A technology in which an operating lever is provided on the side of the driver's seat of an earthmoving vehicle that can select between a forward facing position and a backward facing position is known from Japanese Utility Model Application Publication No. 49-127102 (conventional example). 1).

Further, a driving device for a working vehicle in which an instrument panel and an operating lever are provided on the side of the driver's seat is known from Japanese Utility Model Application No. 54-60831 (Conventional Example 2).

Furthermore, a body side frame is installed on the step,
A tank device for an industrial vehicle in which a tank is provided on the step is known from Japanese Utility Model Application Laid-open No. 54-180524 (Conventional Example 3).

(Problem to be solved by the invention) In conventional example 1, a bucket operation lever and a blade operation lever are provided in front and behind the driver's seat, respectively.
The driver's seat can be rotated freely, and control levers are placed upright on both sides of the driver's seat.
The levers protruding from both sides of the driver's seat not only made it difficult to get on and off the vehicle, but also caused the risk of erroneous operation when getting on and off.

In addition, in conventional example 2, a box equipped with instruments or operating tools is provided on the armrest of the driver's seat integrally with the driver's seat, and in order to change the posture of the driver's seat between forward and backward, Since the operating tool is also changed as a whole, it is necessary to attach and detach the interlocking system of the operating tool, such as link members, Bowden cables, etc., from the operating tool each time a change is made, which is extremely troublesome. .

Furthermore, in conventional example 3, a tank is provided on the step and a side frame is provided inside the tank. Since the tank is located outside, there is no guard function for the tank, and there is a risk of deformation or damage due to external forces on the tank. I was afraid. This invention allows you to freely change the driving position between the forward and rearward driving positions, without causing any difficulty in getting on or off the vehicle.Moreover, the change lever allows you to easily move the driver's seat without having to change the position forward or backward. It is an object of the present invention to provide a two-axle, four-wheel type tractor in which deformation, damage, etc. of the tank can be prevented while increasing the tank capacity.

(Means for achieving the object) The present invention provides a bonnet 12 on the front side of the vehicle body 5.
A pair of left and right rear wheel fenders 30 connected by a floor seat 26 are provided on the rear side of the vehicle body 5, and steering handles 35F, 35R are provided on the vehicle body 5, spaced apart in the front and rear. and driver's seat 3
3F and 33R, and a pair of left and right step portions 28 on the front side of the rear wheel fender 30. In the two-axle four-wheel tractor, the step portion 28 is provided with a pair of left and right step portions 28 on the front side of the rear wheel fender 30. A mounting portion 37 for forward driving of the steering handles 35F, 35R is provided, and a mounting portion 5 for backward driving of the steering handles 35F, 35R is provided on the rear side of the vehicle body 5.
9 is provided, and the steering handles 35F, 3 are attached to the respective mounting portions 37, 59 of the steering handles 35F, 35R.
5R is selectively and changeably installed in an upright position, and the driver's seat 33 is mounted on the floor seat 26.
A mounting part 34 for forward driving of F, 33R is provided,
On the rear of the bonnet 12, the driver's seats 33F, 33
R is provided with a mounting part 56 for rearward driving, and the driver's seat 3
Driver seats 33F and 33R are selectively and changeably attached to the above-mentioned mounting portions 34 and 56 of 3F and 33R, and one side of the rear side of the bonnet 12 and a rear wheel fender 30 that corresponds to this one side at the rear. A side cover 82 is disposed upright to open one side of the pair of left and right step portions 28 and close only the other to the front end side of the driver's seat 33F, and a tank 83 is disposed within the side cover 82. 33R is attached to either mounting part 34 or 56, the driver's seat 33
Change lever 7 located on one side of F, 33R
2, 73, and 74 are provided to protrude upward from the upper surface side of the side cover 82.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

In the embodiment shown in FIGS. 1 to 5, a forward-reverse tractor 1 includes a vehicle body 5 composed of an engine 2, a clutch housing 3, a transmission case 4, etc., and a pair of left and right frames 6 fixed to the engine 2. A radiator 7 is mounted on the radiator 7, and a front axle 8 is supported.

Reference numeral 9 denotes a frame fixed to the clutch housing 3, which has a shielding plate 10 therein. An air cleaner 11 is disposed in front of the shielding plate 10, and this air cleaner 11 connects the engine 2 and the radiator 7.
is covered by a bonnet 12.

Tractor 1 is a four-wheel drive type, and 13
14 is a front wheel, 14 is a rear wheel, and 15 and 16 are a front wheel drive propulsion shaft and a front wheel differential device.

Hydraulic device 19 is located at the rear upper part of the transmission case 4.
is arranged, and a pair of left and right lower links 20 are pivotally supported at the bottom thereof, and the lift arm 21 of the hydraulic device 19 and the lower link 20 are connected by a lift rod 22, and the lower link 20 is connected to a top link (not shown). ) constitutes a three-point linkage mechanism 23,
A working machine 24 such as a rotary tiller, a seeding machine, a forklift, a snow blower, etc. can be mounted in a vertically movable manner.

The upper part of the hydraulic system 19 is covered with a floor seat part 26 of a cover body 25, and this cover body 25 descends downward from the front end of the floor seat part 26 to become a front seat part 27, and from the lower ends of the left and right front seat parts 27. It extends forward to form a pair of left and right forward movement step portions 28R and 28L, and also extends rearward and upward from the rear end of the floor seat portion 26 to form a connecting portion 2.
9, and these are integrally molded from sheet metal or reinforced plastic.

Reference numeral 30 denotes a pair of left and right fenders that cover the inner, upper, and front upper parts of the left and right rear wheels 14, and each side edge of the cover body 25 is fixed to the fenders, or the cover body 25 is fixed to each side edge of the cover body 25.
It is integrally molded from the same material.

A mounting portion 34 for removably attaching a forward seat 33F is formed on the central upper surface of the floor seat portion 26, and a handle post 36F having a forward movement handle 35F at its upper end is provided on the transmission case 4 at the lower front thereof. A steering mechanism 41 such as relay shafts 38, 39 and a relay box 40 is provided from the mounting portion 37 to the front wheel 13, and the front wheel 13 can be steered by operating the handle 35F. There is.

44R, 44L are left and right brake pedals, 45 is a clutch pedal, the three pedals 44, 45 are supported by a pedal shaft 46, and the depressing operation of the left and right brake pedals 44R, 44L is controlled by rods 47R, 4.
7L, a pair of hydraulic cylinders (not shown) are actuated, and the hydraulic brake devices 49 disposed on the left and right sides of the transmission case 4 are actuated by the pressure oil of the hydraulic cylinders. Furthermore, the depression of the clutch pedal 45 connects and disconnects the clutch within the clutch housing 3 via the lever and rod.

Reference numeral 55 denotes a box attached to the frame body in front of the forward handle post 36F, the top surface of which is open and provided with a mounting portion 56 for the reverse seat 33R, and a cover 57 pivotally supported on the frame body 9. can be fitted freely, and there is a battery 58 inside.
is located.

A mounting part 59 is provided on the right side of the hydraulic system 19 on the transmission case 4 to which a handle post 36R having the reverse handle 35R at the upper end is attached. 60 and 61 are provided so that the operation of the reverse steering wheel 35R can be transmitted to the relay box 40, so that the front wheels 13 can be steered.

The seat 33R, handle 35R, and handle post 36R for backward movement are exactly the same as those for forward movement, and only one set is prepared for each tractor 1, and they can be attached to and removed from each mounting part 34, 37, 56, 59. It is flexible and can be used for both forward and backward postures by changing the mounting position.

A pair of left and right reverse brake pedals 62R, 62L are arranged on the left side of the hydraulic system 19, and are connected to a pair of hydraulic cylinders to which forward brake pedals 44R, 44L are connected, respectively. A reverse clutch pedal 65 is disposed on the right side of the vehicle 19, and is connected to the interlocking system of the forward clutch pedal 45, so that the brake and clutch can be operated even in the reverse posture.

Hoods 80R and 80L are provided in front of the left and right step sections 28R and 28L, and the space separated by the left step section 28L, left fender 30L, and box 55 serves as an entrance 81 through which the operator can get on and off. , on the other hand, the right step section 2
8R, the right fender 30R, and the box 55 are closed with side covers 82.

An operation panel section 70 is arranged on the upper part of the side cover 82, and a switch box 71 integrated with the right foot 80R is provided between the front end of the operation panel section 70 and the box 55. A fuel tank 83 is arranged below 70.

Reference numeral 84 denotes a gearbox fixed to the upper part of the side cover 82. On this gearbox 84, a main gearshift lever 72, an auxiliary gearshift lever 73, and a PTO gearshift lever 74 are supported, and a creep gearshift lever 85 is supported on the lower surface thereof. ing. A panel 86 is provided on the upper surface of the side cover 82, and the levers 72, 73,
74 guide grooves are formed, and meters such as a tractor meter 75, a fuel gauge 76, and an easy checker 87 are also provided. Each of the speed change levers 72, 73, 74, 85 and the shifter in the transmission case 4 are connected by Bowden wires, rods, etc., so that operating force can be transmitted.

Although not shown in the switch box 71,
A lighting switch, turn signal switch, main switch, etc. are provided. 77 is hydraulic system 1
9 control lever.

The fuel tank 83 is attached to the side wall 8 of the side cover 82.
A box-shaped tank forming member 88 with only one side open is welded to the inner surface of the tank 2a. That is, the fuel tank 83 is formed by the side cover 82 and the tank forming member 88.

The side cover 82 has a portion facing the tank forming member 88 that bulges outward, and this bulge 89
The capacity of the fuel tank 83 is increased and its strength is also increased. This side cover 82 has an upper wall 82b to which the panel 86 is attached, and a front wall 82c that covers the front of the tank forming member 88, and the inner edge of the front wall 82c is bolted to the outer edge of the right foot 80R. There is. The inner lower end of the tank forming member 88 is fixed to the right step part 28R by welding an angle member 90, the back part is fixed to the front part of the right fender 30R via two metal fittings 91, and the front upper part is fixed to the front part of the right fender 30R via two metal fittings 91. It is fixed to the front wall 82c via.

93 is an injection pipe of the fuel tank 83, and an injection port 94 at its tip protrudes from the front wall 82c, allowing refueling from the side of the tractor 1. are connected through a small diameter pipe 95 for air bleeding. Injection tube 93
The small diameter pipe 95 is made of flexible rubber or synthetic resin, or made of steel.

Since the fuel tank 83 has a height that allows it to be fixed to the step portion 28, the height above the ground is not very high, and therefore the injection port 94 is also located at a considerably lower position than the conventional fuel tank which is housed within the bonnet 12. Refueling is extremely easy. In addition, the operation panel section 70
Since the operating panel section 70 is disposed below the operator, the space under the operating panel section 70 created by providing it on the side of the operator can be effectively utilized.

Incidentally, the side cover 82 having the operation panel section 70 and the fuel tank 83 is not limited to being placed near the right step section 28R, but may be placed near the left step section 28L.

(Effects of the invention) The invention is as described above, and according to the invention,
It has the following advantages.

Mounting parts 37 for forward driving of the steering handles 35F, 35R are provided at positions corresponding to the rear part of the bonnet 12 on the vehicle body 5, and mounting parts 37 for backward driving of the steering handles 35F, 35R are provided on the rear side of the vehicle body 5. 5
9 is provided, and the steering handles 35F, 3 are attached to the respective mounting portions 37, 59 of the steering handles 35F, 35R.
5R is selectively and changeably installed in an upright position, and the driver's seat 33 is mounted on the floor seat 26.
A mounting part 34 for forward driving of F, 33R is provided,
On the rear of the bonnet 12, the driver's seats 33F, 33
R is provided with a mounting part 56 for rearward driving, and the driver's seat 3
Since the driver's seats 33F and 33R are selectively and changeably attached to the above-mentioned attachment parts 34 and 56 of 3F and 33R, it is possible to perform forward work with the tractor 1, for example, work with a forklift attached to the rear. In either case, a working position suitable for the working machine can be taken.

At this time, handles 35F, 35R and driver's seat 3
Since both 3F and 33R are attached and detached, the front and rear distances between the handlebars 35F and 35R and the driver's seats 33F and 33R in the forward and rearward directions can be made more appropriate than in the case where the driver's seat rotates.

Further, a side cover 82 is provided upright to open one side of the step portion 28 between one rear end side of the bonnet 12 and the front end side of the rear wheel fender 30 corresponding to this one side and close the other side. Since the tank 83 is placed inside the side cover 82, the side cover 82 can protect the driver's feet from mud on the side of the driving device, and can also prevent the tank 83 from being deformed or damaged. Since the side cover 82 only closes the step portion 28 on one side and leaves the step portion 28 on the other side open, there is no problem in getting on and off the vehicle.

Which mounting part 34 is the driver's seat 33F, 33R,
Even if it is installed in 56, the driver's seat 33F, 33
Change levers 72, 7 located on one side of R
3 and 74 are provided so as to protrude upward from the upper surface side of the side cover 82, so the change levers 72, 73, and 74 can be operated in any direction when driving in the forward or backward direction. In making the change, the change levers 72, 73, 74 are left as they are and are provided on the side cover 82.
Wires, rods, links, etc. connected to the change levers 72, 73, 74 and the change levers 72,
There is no need to attach or detach the connection with 73, 74, and the operation can be changed easily and quickly between forward and backward directions.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of a forward-reverse tractor, Fig. 2 is a plan view, and Fig. 3 is a plan view.
The drawings are a sectional view taken along the line A-A in FIG. 1, FIG. 4 is a perspective view of the main parts of the present invention, and FIG. 5 is a side view of the main parts. 1...Tractor, 2...Engine, 28...Step parts R, L, 30...Fender R, L, 70
...Operation panel section, 82...Side cover, 83...
...Fuel tank, 88...tank forming member.

Claims (1)

[Claims for Utility Model Registration] An engine 2 covered by a bonnet 12 is provided on the front side of a vehicle body 5, and a pair of left and right rear wheel fenders 30 connected to a floor seat 26 is provided on the rear side of the vehicle body 5. Steering handles 35F, 35R and driver seats 33F, 33R are provided on the vehicle body 5 and spaced apart from each other in the front and rear.
In a two-axle, four-wheel type tractor equipped with a steering device having a steering wheel and a pair of left and right step portions 28 on the front side of the rear wheel fender 30, a steering handle is provided at a position corresponding to the rear of the bonnet 12 on the vehicle body 5. Mounting parts 37 for forward driving of steering handles 35F and 35R are provided on the rear side of the vehicle body 5, and mounting parts 5 for backward driving of steering handles 35F and 35R are provided.
9 is provided, and the steering handles 35F, 3 are attached to the respective mounting portions 37, 59 of the steering handles 35F, 35R.
5R is selectively and changeably installed in an upright position, and the driver's seat 33 is mounted on the floor seat 26.
A mounting part 34 for forward driving of F, 33R is provided,
On the rear of the bonnet 12, the driver's seats 33F, 33
R is provided with a mounting part 56 for rearward driving, and the driver's seat 3
Driver seats 33F and 33R are selectively and changeably attached to the above-mentioned mounting portions 34 and 56 of 3F and 33R, and one side of the rear side of the bonnet 12 and a rear wheel fender 30 that corresponds to this one side at the rear. A side cover 82 is disposed upright to open one side of the pair of left and right step portions 28 and close only the other to the front end side of the driver's seat 33F, and a tank 83 is disposed within the side cover 82. 33R is attached to either mounting part 34 or 56, the driver's seat 33
Change lever 7 located on one side of F, 33R
2, 73, and 74 are provided to protrude upward from the upper surface side of the side cover 82.
Wheeled tractor.