JP2000142112A - Working vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a working vehicle equipped with a cabin between the front wheels and rear wheels and fenders to cover the rear wheels located behind the cabin to facilitate for a person to get on and off the vehicle, prevent the under-part of the door from blurring, and allow easy takeout of a tool. SOLUTION: A reinforcing frame 95 extending down ahead is installed on a door 92 for getting on and off a cabin in such a way as tracing the shape of each rear fender 103. The frame 95 is furnished with a vent hole to allow blowing-out of the air sent from an air-conditioner 91, and the air is fed to the under-part of the cabin. A tool box is installed in a position inside a side step and between steps viewed on the side elevation, and one common stay is used for the tool box and a fuel tank.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a construction of a work vehicle such as a tractor.

[0002]

2. Description of the Related Art Conventionally, a door 92 for getting on and off a cabin is made of a single piece of glass in order to improve visibility, and the edge of the glass is held by a door frame. FIG. 9 is a side view showing a configuration of a conventional reinforcing frame. On the cabin side of the entry / exit door 92, a reinforcing frame 195 also serving as a handrail for opening and closing the door is provided at the center of the entry / exit door. The reinforcing frame 195 is provided with a lower hinge and a door knob 96 provided at the rear of the entrance door.
The reinforcing frame 195 is substantially horizontal near the door knob 96.

The air conditioner is provided on the cabin roof 11, and is configured to supply warm air or cool air from the cabin roof into the cabin.

FIG. 10 is a side view showing an arrangement of a conventional tool box. The arrangement of a conventional tool box may be arranged behind a seat as shown in FIG.
Like 0, it was arranged beside the hood.

[0005]

Since a large tractor has a high cabin position, it climbs up steps when getting on and off.
In order to get into the cabin, the reinforced frame is used as a handrail. However, since the conventional reinforcing frame is disposed substantially horizontally as described above, it is difficult to grasp. Further, since the air conditioner is disposed on the cabin roof and the outlet is disposed above the cabin, it is difficult for the air conditioner to prevent fogging at the lower portion of the entrance door.

In the conventional arrangement of the tool box, as described above, when the tool box is disposed behind the seat of the tractor, it is necessary to get into the tractor when removing the tool from the tool box. , Low workability. On the other hand, when the tools are arranged beside the bonnet, it is necessary to replace the tool box when mounting the front loader on the tractor.

[0007]

The present invention uses the following means in order to solve the above problems. First, in claim 1, in a work vehicle having a cabin disposed between a front wheel and a rear wheel, and a fender covering the rear wheel behind the cabin, a door for getting on and off the cabin is provided along a shape of the fender. A reinforcement frame that extends forward and downward.

According to a second aspect of the present invention, in a work vehicle having a cabin arranged between a front wheel and a rear wheel and a fender covering the rear wheel behind the cabin, a reinforcement mounted on a door for getting on and off the cabin. The frame is formed in a pipe shape, and a ventilation port is provided in the reinforcing frame so that air from an air conditioner can be blown out.

According to a third aspect of the present invention, there is provided a working vehicle having a cabin disposed between a front wheel and a rear wheel and a fender covering the rear wheel behind the cabin. Attaching a reinforcement frame extending forward and downward along, configuring the reinforcement frame in a pipe shape,
An opening is provided in the reinforcing frame so that air can be supplied to the lower part of the cabin as a blowout port of the air conditioner.

According to a fourth aspect of the present invention, there is provided a working vehicle having a cabin disposed between a front wheel and a rear wheel and having a stepping step on a lower side of the cabin. A tool box is disposed between the steps of the side steps, and a stay of the tool box and a stay of the fuel tank are formed of a common member.

[0011]

Embodiments of the present invention will be described with reference to the accompanying drawings. 1 is a side view of a work vehicle, FIG. 2 is a plan view of the same, FIG. 3 is a side view showing the arrangement of a tool box, FIG. 4 is a front view of the same, FIG. 5 is a plan view of the same, and FIG. FIG. 7 is a front view of the reinforcing frame, and FIG. 8 is a plan sectional view showing the configuration of the side frame and the reinforcing frame.

First, the overall configuration of a working vehicle equipped with a cabin according to the present invention will be described with reference to FIG. A hood 4 is disposed at the front of the machine which suspends the front wheel 2 and the rear wheel 3 at the front and rear, and an engine 5 is built in the hood 4.
A steering handle 6 is provided behind the hood 4, and a seat 7 is provided behind the steering handle 6. The steering handle 6 and the seat 7 are
Covered by cabin 8. A front glass and a rear glass are disposed on the front and rear surfaces of the cabin 8, and a door 92 for getting on and off is formed on a side portion of the cabin 8, and a side window is formed behind the door 92 for getting on and off. Have been. The windshield and rear glass, the entry / exit door 92, and the side windows are supported by a cabin frame.

A steering handle 6 is provided above a dashboard 12 provided in the cabin 8, and the dashboard 12 is made of a member made of resin or the like. At the rear of the dashboard 12, a seat 7 for mounting a cushion is provided. A speed change lever, an accelerator lever, and a brake lever for traveling the work vehicle are provided on the side of the seat 7.

A transmission is connected to the rear of the engine 5 to transmit power from the engine 5 to the rear wheels 3 for driving. Further, the driving force of the engine 5 is transmitted from a transmission to a power take-off shaft projecting from the rear end of the machine body to drive the power take-out shaft (hereinafter, referred to as a PTO shaft) and connected to a work machine mounting device at the rear end of the machine body. It is configured to drive the working machine.

A fuel tank 72 is provided below the floor 14 of the cabin 8 and inside the side step 75 for getting on and off the cabin. This facilitates the supply of fuel to the fuel tank 72, and the outside of the fuel tank 72 is protected by the side step 75.

Next, the arrangement of the tool box 21 will be described with reference to FIGS. The fuel tank 72 is disposed on a side of the work vehicle, and a fuel supply port 73 is provided outside the work vehicle.
Is configured to be located. Further, the fuel tank 72 is disposed on the side of the transmission 13, and the front surface of the fuel tank 72 is protected by the cover 80. The fuel tank 72 is fixed on a stay 71a, and the stay 71a is fixed on the lower frame 71 of the machine body. A side step 75 is disposed on the left side of the left fuel tank 72, and the tool box 21 is disposed between the fuel tank 72 and the side step 75. The fuel tank 72 and the tool box 21 are fixedly provided by a common stay member. The tool box 21 is fixed to a stay 71 a provided on the lower frame 71, and is located between the first step and the second step of the side step 75 in a side view and between the columns of the side step 75. Tool box 2
1 is located.

With the above configuration, the tool box 21 can be disposed by utilizing the dead space of the tractor, and the side step 75 can be provided.
Can be used as a space for temporary storage of tools. Further, since the tool box 21 is disposed inside the side step 75 used when getting off the tractor, the tool box 21 is located near the getting-off position when performing work, so that the workability is improved. Further, since the tool box 21 is protected by the side steps 75, it is not necessary to cover the tool box 21 in particular, and the tool can be easily taken out from the tool box 21. Further, the tool box 2
Since 1 is fixed using the stay 71a for fixing the fuel tank 72, it is not necessary to newly provide a member for fixing the tool box 21.

Next, the structure of the door reinforcing frame is shown in FIG.
This will be described with reference to FIGS. The cabin 8 includes a top frame 85, a front frame 82, a side frame 8
1, a rear frame 83 and a lower frame 84, and an armrest 88 is provided on the side frame 81. The side frame 81 has a door 9
2 has a rear end pivotally supported to open and close. A hinge 101 is fixed up and down on the outer surface of the side frame 81, and the hinge 101 pivotally supports the door 92 for opening and closing. Since the hinge 101 is fixed to the side frame 81, the hinge 101 is configured to be opened and closed from the front of the door 92 for getting on and off. The entry / exit door 92 is disposed at a position surrounded by the top frame 85, the front frame 82, the side frame 81, and the lower frame 84, and is disposed at a door glass 93, at an edge of the door glass 93. It comprises a door frame 94 for holding a door glass 93, an auxiliary frame 95, and a handle 96.

The auxiliary frame 95 is provided with the door glass 93.
At the bottom of the cabin 8.
The rear end of the auxiliary frame 95 is fixed to the door glass 93 together with the hinge 101, and the front end is the door glass 93.
It is fixed at the bottom of the. The center of the auxiliary frame 95 is connected to the handle 96. Auxiliary frame 9
5 is a rear fender 10 disposed below and behind the cabin 8.
3. Since the reinforcing frame 95 is configured to conform to the shape of the rear fender 103, the reinforcing frame 95 is configured to overlap the rear fender 103 in the field of view of an operator, and the reinforcing frame 9
5, the amount of decrease in the field of view of the worker can be reduced. Also,
In the reinforcing frame 95, the portion below the portion of the reinforcing frame 95 connected to the handle 96 may be configured to have a smaller diameter to increase the visibility near the lower portion of the reinforcing frame 95.

According to the above configuration, the door glass 93 is reinforced at the reinforcing frame 95 at three points, that is, the hinge 101, the handle 96, and the lower part of the door glass 93. Thus, the degree of reinforcement of the door glass 93 can be increased by the reinforcing frame 95. Further, in the cabin 8, the feet of the worker are prevented from contacting the lower portion of the door glass 93, and the load is prevented from rolling when loading the load on the cabin 8, and is prevented from contacting the lower portion of the door glass 93. . That is, since the door glass 93 is protected by the reinforcing frame 95, the usability of the cabin 8 is improved.

The reinforcing frame 95 is formed by a hollow pipe, and the reinforcing frame 95 has an opening 95a. A flexible pipe 110 is connected to a rear end of the reinforcing frame 95, and the flexible pipe 110 is connected to an air supply pipe 112 provided in the side frame 81. The air supply pipe 112 is connected to an air conditioner 91 provided in the cabin roof 11 above the cabin 8, and the air supply pipe 112 is configured to be inserted into the side frame 81. The air supply pipe 112 is inserted into the side frame 81, and the air conditioner 9 is
Since the cool air or warm air from 1 is supplied, the side frame 81 is not cooled or warmed by the gas passing through the air supply pipe 112. Further, the gas passing through the air supply pipe 112 is less affected by the temperature inside the cabin 8, and the noise generated by the gas passing through the air supply pipe 112 can be reduced. The above effects can be improved by forming the air supply pipe 112 from a soundproof and heat insulating material.

The reinforcing frame 95 and the air supply pipe 11
2 are connected by the flexible pipe 110, the reinforcing frame 95 and the air supply pipe 112 are not deformed by opening and closing of the door 92, and the flexible pipe 110 is smoothly deformed.
Can be opened and closed smoothly. The flexible pipe 110 is connected to a position near the side frame 81 at the rear end of the reinforcing frame 95, and is configured to minimize the protrusion of the flexible pipe 110 into the cabin 8. Accordingly, the operation environment in the cabin 8 is not affected by the flexible pipe 110, and the joining between the air supply pipe 112 and the reinforcing frame 95 can be made compact.

Thus, the air supplied from the air conditioner 91 can be supplied to the reinforcing frame 95 through the air supply pipe 112 and the flexible pipe 110, and can be blown out from the opening provided in the reinforcing frame 95. At the same time, the smooth opening and closing of the door 92 can be maintained.

In this embodiment, the reinforcing frame 95 is used.
Opening 95a is provided on the door glass 93 side,
Cooling air is supplied from the air conditioner 91 to the reinforcing frame 9.
The air is supplied from the opening 95a of No. 5 and can be used to prevent the fogging of the door glass 93. The reinforcing frame 95
Can be directed toward the inside of the cabin 8 to blow air from the air conditioner 91 to the feet of the worker sitting on the seat 7.

Since the reinforcement frame 95 extends along the rear fender 103 to the lower front part of the door 92, the door 95 is opened when the door 92 is opened. The front lower extension portion is disposed at an angle and a position that is easy for an operator who gets on and off the side step 75 to use it as a handrail, so that getting on and off the work vehicle can be performed smoothly.

[0026]

As described above, the present invention has the following advantages. First, as for the door for getting on and off the cabin, in a work vehicle having a fender for disposing a rear wheel behind the cabin, the cabin being disposed between the front wheel and the rear wheel as claimed in claim 1, In order to attach a reinforcing frame that extends forward and downward along the shape of the fender to the door for use, while ensuring the view of the lower part of the door for getting on and off, when the front lower extending part opens the door for getting on and off, It is arranged at an angle and position that is easy for the operator to get on and off the step for getting on and off, which is arranged below the cabin side, and this can be used as a handrail at the time of getting on and off,
Thereby, getting on and off the work vehicle can be performed smoothly. Further, since the reinforcing frame extends below the door, the lower part of the door can be protected by the reinforcing frame.

According to a second aspect of the present invention, in a work vehicle having a cabin disposed between a front wheel and a rear wheel and a fender covering the rear wheel behind the cabin, the cabin is provided with a door for getting on and off. The reinforcing frame to be mounted is formed in a pipe shape, and an air outlet is provided in the reinforcing frame so that air from the air conditioner can be blown out, so that the reinforcing frame can be used as an air outlet of the air conditioner. Can be reduced. Further, the outlet can be formed near the door for getting on and off without reducing the space in the cabin. By turning the outlet provided on the reinforcement frame of the door for entrance and exit toward the door for entrance and exit, it is possible to prevent fogging of the door for entrance and exit.

According to a third aspect of the present invention, there is provided a working vehicle having a cabin disposed between a front wheel and a rear wheel, and a fender for covering the rear wheel behind the cabin. Attaching a reinforcing frame extending forward and downward along the shape of the fender, configuring the reinforcing frame into a pipe shape, providing an opening in the reinforcing frame, serving as an air conditioner outlet, and supplying air to the lower part of the cabin Therefore, it is possible to use the reinforcing frame as a handrail at the time of getting on and off, and also as a stopper for the lower part of the door for getting on and off. That is, the effects of the respective configurations of the first and second aspects can be simultaneously obtained.

As for the arrangement of the tool box in the vicinity of the cabin, as described in claim 4, the cabin is arranged between the front wheel and the rear wheel, and a side step for getting on and off is provided below the cabin. In the work vehicle, a tool box is disposed between the steps of the side step inside the side step and viewed from the side, and a stay of the tool box and a stay of the fuel tank are configured by a common member. So
With a simple configuration, the tool box can be arranged at a position where the tool can be easily taken out. In addition, there is no need to move the tool box when attaching the work implement to the front of the work vehicle. In addition, since it is disposed between the steps inside the side steps for getting on and off, it is easy to take out tools when getting off or getting on. Since the tool box is protected by the side steps, no other member for protecting the tool box is required.

[Brief description of the drawings]

FIG. 1 is a side view of a work vehicle.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view showing an arrangement configuration of a tool box.

FIG. 4 is a front view of the same.

FIG. 5 is a plan view of the same.

FIG. 6 is a side view showing a configuration of a reinforcing frame.

FIG. 7 is a front view of a reinforcing frame.

FIG. 8 is a cross-sectional plan view showing a configuration of a side frame and a reinforcing frame.

FIG. 9 is a side view showing a configuration of a conventional reinforcing frame.

FIG. 10 is a side view showing the arrangement of a conventional tool box.

[Explanation of symbols]

 5 Engine 8 Cabin 21 Tool box 72 Fuel tank 75 Side step 92 Door for getting on and off 95 Reinforcement frame 103 Rear fender

Claims (4)

[Claims] 1. A work vehicle having a cabin disposed between a front wheel and a rear wheel, and a fender for covering the rear wheel behind the cabin. A work vehicle, comprising a reinforcing frame extending to the vehicle. 2. A work vehicle having a cabin disposed between a front wheel and a rear wheel, and a fender behind the cabin, the rear frame being covered with a fender. A work vehicle, wherein an air vent is provided in the reinforcing frame so that air can be blown from an air conditioner. 3. A work vehicle having a cabin disposed between a front wheel and a rear wheel, and a fender for covering the rear wheel behind the cabin. The reinforcing frame is attached to the pipe, the reinforcing frame is formed in a pipe shape, an opening is provided in the reinforcing frame, and air is supplied to the lower part of the cabin as an air outlet of an air conditioner. Working vehicle. 4. A work vehicle having a cabin disposed between a front wheel and a rear wheel and having a side step for getting on and off below the cabin, wherein the side step is located inside the side step in a side view. A work vehicle, wherein a tool box is provided between steps, and a stay of the tool box and a stay of the fuel tank are formed of a common member.