JPH1159165A - Tractor air conditioner mounting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the maintenance of an air conditioner unit of a tractor. SOLUTION: An air conditioner mounting device of a tractor is constituted by integrally mounting an air conditioner box 6 supporting and storing an air conditioner unit 5 by projecting within an engine room 3 in a dashboard 4 partitioning the side of a maneuvering seat where a steering post 1 is located and the engine room 3 on the lower side of a bonnet 2 and being provided with a freely attachable/detachable box cover 11 which covers the air conditioner box 6 within this engine room 3 and forms an intake path 10 communicating an outside air inlet port 8 in the rear upper part of the bonnet 2 and an intake chamber 9 of the air conditioner box 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner mounting device for a tractor equipped with an air conditioner.

[0002]

In the configuration in which the air conditioner box accommodating the air conditioner unit of the tractor is attached to the dashboard, the air conditioner box is located in the engine room, so that the air conditioner unit and the air filter for sucking outside air are cleaned. Maintenance is complicated.

[0003]

According to the present invention, there is provided a dashboard 4 for partitioning between a cockpit 25 on which a steering post 1 is located and an engine room 3 inside a hood 2.
An air conditioner box 6 that protrudes into the engine room 3 and supports and accommodates the air conditioner unit 5 is integrally attached thereto. The air conditioner box 6 in the engine room 3 is covered with an outside air intake port 8 at the rear upper portion of the hood 2. The tractor is provided with an air conditioner mounting device that is provided with a removable box cover 11 that forms an air intake passage 10 that communicates with the air intake chamber 9 of the air conditioner box 6.

[0004]

The air conditioner unit 5 can be attached or detached by opening the hood 2 and opening the box cover 1 from inside the engine room 3.
1 can be carried out in a state where it is removed, and it is sufficient to mainly attach to or remove from the air conditioner box 6. When the box cover 11 is attached while the air conditioner unit 5 is attached, an intake path 10 is formed and communicated with the intake chamber 9. Therefore, by closing the bonnet 2, the outside air suction port 8 formed at the rear upper portion of the bonnet 2 is communicated with the suction chamber 9 formed on the air conditioner unit 5 side through the suction path 10, and The air can be guided to the cockpit 25 side by guiding the clean outside air by suction, and air-conditioning by the air conditioner unit 5 part.

[0005] By removing the box cover 11, maintenance such as cleaning can be easily performed even when the intake path 10 and filters disposed before and after the intake path 10, and the air conditioner unit 5 can be easily attached and detached. .

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A vehicle body of a tractor 12 is constructed by connecting a clutch housing 14, a front transmission case 15, a rear transmission case 16 and the like to a rear side of an engine 13 at a front portion. In front of the engine 13,
A front axle housing 19 having a front axle bracket 17 and a left and right front wheel 18 is supported on the left and right sides of a rear transmission case 16 and a rear axle housing 20 is provided on both left and right sides of the rear transmission case 16. When the engine 13 is driven, these front wheels 18 and rear wheels 2
1 to travel.

The cabin 22 is provided with a seat floor 26 and a step floor 27 for supporting a cockpit 25 at the bottom of a pair of left and right front pillars 23 and a rear pillar 24, and a roof 28 is provided at an upper part to form a rigid body. The lower end of the front pillar 23 is supported by the clutch housing 14, and the lower end of the rear pillar 24 is supported by the rear axle housing 20 via a bracket 29 so that the front pillar 23 can be attached and detached.

A windshield 30 is provided above the cabin 22 between the left and right front pillars 23.
Engine room 3 and cabin 2 under the hood 2 on the front side
A lower windshield 31 is provided on both left and right sides of the dashboard 4 that partitions between the cockpit 7 and the cockpit 7. A rear glass 32 is provided between the left and right rear pillars 24. Further, openable and closable glass doors 33 are provided on both left and right sides. 34 is a fender. Inside the cabin 22, a steering handle 3 is mounted on a steering post 1 located on the rear side of the dashboard 4.
5 is provided to steer the front wheel 18.

The dashboard 4 is configured to partition between the front engine room 3 and the rear cockpit 7 at the upper part of the clutch housing 14, and the upper part of the hood 2 can be opened and closed at the upper part of the engine room 3 at the front. The rear edge is approached, and the cockpit 7 on the rear side is
Dash cover 37 having a meter panel 36
Is provided and covered. A housing cover 38 is provided below the dash cover 37 to cover the lower part of the clutch housing 14, the speed change operation shaft 39, and the like. Numeral 40 is a speed change lever, and 41 is a sub speed change lever.

An opening 42 for installing the air conditioner unit 5 is formed on the front side of the steering post 1 of the dashboard 4, and the air conditioner box 6 is fitted and supported in the opening 42 and fixed by welding. Is done. The rear end of the air conditioner box 6 opens to the cockpit 7 side, but the front side is protruded into the engine room 3 in the shape of a bucket, and the air conditioner unit 5 is housed and mounted in a form in which the front upper surface is opened. 43 and the like.

The air conditioner unit 5 includes a motor M, a fan 44, a heat exchanger 45, air switching valves 46 and 47, a ventilation path 48, and the like. These are integrally attached and detached by bolts 43 at the bottom of the air conditioner box 6 and can be taken in and out of the air conditioner box 6. A compressor, a condenser and the like of the air conditioner are arranged at the front of the engine room 3 and connected to the heat exchanger 45 by a pipe 49.

The box cover 11 covers a portion extending from the front side to the upper side of the air conditioner box 6, and is configured to be fixed to the air conditioner box 6 by tightening bolts 50 on both left and right sides and to be detachable. An intake port 51 communicating with the outside air intake port 8 of the bonnet 2 is formed on a front upper side of the box cover, and an intake path 10 is formed vertically from the intake port 51. The intake path 10 The air conditioning unit 5 communicates with an intake chamber 9 formed on one side of the air conditioning unit 5.

Reference numeral 52 denotes a drain port formed at the bottom of the intake path 10. Reference numeral 53 denotes an air filter provided at the outside air suction port 8 of the bonnet 2, and reference numeral 54 denotes an air inlet cover that covers an upper side of the outside air suction port 8 of the hood 2. Reference numeral 55 denotes a seal provided on the peripheral edge of the intake port 51 of the box cover 11, and can press the lower surface of the peripheral part of the external air intake port 8 when the hood 2 is closed. Reference numeral 62 denotes an inner cover, and the box cover 11
, And is configured to communicate the intake passage 10 to the intake chamber 9 side.

The air conditioner unit 5 has a fan 44 which is electrically rotated by a motor M at a central front portion, and a heat exchanger 45, a ventilation passage 48 and the like at the rear side. The intake chamber 9 is provided on one of the left and right sides, and the air supply
6 are arranged. The outside air sucked through the intake passage 10 by the rotation of the fan 44 is guided from the ventilation passage 48 to the heat exchanger 45 through the intake room 9, is air-conditioned and is blown to the air supply room 56, and is sent to the cockpit 7 in the cabin. Sent out to

The air switching valve 46 at the rear end of the intake chamber 9 has a structure capable of adjusting the ratio of the amount of intake air from the intake chamber 9 side to the amount of intake air from an indoor intake port 57 communicating with the cockpit 7.
When the indoor intake port 57 is closed, the intake of outside air from the intake chamber 9 side is fully opened, and the intake chamber 9 side is closed to open the indoor intake port 5.
7 can be fully opened. Further, an air switching valve 47 provided at the rear end of the air supply chamber 56 switches the position of the adjusted air blowing and blowing air, and is connected to a duct 59 communicating with an air outlet 58 at an upper portion of the dash cover 37. It can be adjusted by switching to the duct 61 communicating with the outlet 60 at the foot.
These ducts 59, 61 and the like are mounted inside the dash cover 37.

With the hood 2 open, the box cover 11 can be removed by operating the bolt 50. At the same time, since the inner cover 62 is removed, the front ends of the air conditioner unit 5 such as the motor M fan 44, the intake chamber 9, and the air supply chamber 56 are exposed. Further, by operating the bolt 43, the air conditioner unit 5 can be pulled out to the front side of the air conditioner box 6 and can be removed.

As described above, the attachment and detachment of the air conditioner unit 5 can be performed with the hood 2 opened and the box cover 11 removed from the engine room 3.
You only have to remove it. When the box cover 11 is attached while the air conditioner unit 5 is attached, an intake path 10 is formed and communicated with the intake chamber 9. Therefore, by closing the bonnet 2, the outside air suction port 8 formed at the rear upper portion of the bonnet 2 is communicated with the suction chamber 9 formed on the air conditioner unit 5 side through the suction path 10, and The air can be guided into the cockpit 7 by sucking and guiding the clean outside air, and air-conditioned by the air conditioner unit 5.

By removing the box cover 11, maintenance such as cleaning can be easily performed even when the intake path 10 and filters disposed before and after the intake path 10, and the air conditioner unit 5 can be easily attached and detached. . The gap between the inner surface of the air conditioner box 6 and each part of the air conditioner unit 5 housed in the air conditioner box 6 is sealed with a seal or the like.
It is configured such that air does not flow from the front intake passage 10 to the rear cockpit 7 through portions other than the intake chamber 9.

[Brief description of the drawings]

FIG. 1 is a side view of an air conditioner box.

FIG. 2 is a plan view and a ventilation path diagram.

FIG. 3 is a front view thereof.

FIG. 4 is a side view of the tractor.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 steering post 2 bonnet 3 engine room 4 dashboard 5 air conditioner unit 6 air conditioner box 7 cockpit 8 outside air intake 9 intake room 10 intake path 11 box cover

Claims (1)

[Claims] 1. An air conditioner box that protrudes into the engine room 3 and supports and accommodates an air conditioner unit 5 on a dashboard 4 that partitions between the cockpit 25 side where the steering post 1 is located and the engine room 3 inside the bonnet 2. An air intake passage 10 is formed so as to cover the air conditioner box 6 in the engine room 3 and communicate between the outside air intake port 8 at the rear upper part of the hood 2 and the intake room 9 of the air conditioner box 6. A tractor air conditioner mounting device provided with a detachable box cover 11.