JPH071952A - Air-conditioning device for agricultural tractor - Google Patents

Abstract

PURPOSE:To arrange an air-conditioning device for air-conditioning the inside of a cabin, in a cabin specification tractor, without impairing the front field of view, and without narrowing the space inside the cabin room. CONSTITUTION:An air-conditioning device A is arranged behind the driver's seat S and in front of a rear cover 2, and an exhaust duct 10 is connected to rear supports 5 or to the supports in the vicinity thereof, and also the side blowing-out ports 11 are arranged in the rear supports 5 or in the supports in the vicinity thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arrangement of air conditioners in a cabin of an agricultural tractor having a driver's seat covered with a cabin.

[0002]

2. Description of the Related Art Conventionally, there has been known an agricultural tractor in which a driver's seat is covered with a cabin and an air-conditioning device for air-conditioning the cabin is installed to maintain work comfort. However, the installation location of the air conditioner is the ceiling of the cabin, the inside of the dashboard (panel box), the upper part, the side, or the inside of the engine room. In addition, the position of the outlet for blowing hot air or cold air into the cabin was also near the cabin ceiling or dashboard.

[0003]

However, the following problems occur at the installation location of the conventional air conditioner. First, at the ceiling of the cabin, the lower surface of the ceiling is lowered by the air conditioner, which deteriorates the upward visibility, and the driver may jump up from the seat when traveling on rough terrain. Probability is high. In addition, if you install it inside the dashboard, the entire dashboard will become larger,
Even if it is installed on the side or the upper part of the dashboard, the space inside the cabin is narrowed, and the air conditioner gets into the field of view, which deteriorates the field of view. Furthermore, even if it is installed in the engine room, the engine room becomes large and the upper part of the bonnet extends upward, which also deteriorates the visibility. Furthermore, the fact that the air outlets are arranged near the ceiling and the dashboard also narrows the space inside the cabin and also deteriorates the visibility.

[0004]

The present invention uses the following means in order to solve the above problems. That is, in an agricultural tractor having a configuration in which the upper part of the driver's seat is covered with a cabin, the air conditioner in the cabin is installed behind the driver's seat and in front of the rear cover, and the exhaust duct of the air conditioner is installed on the rear pillar of the cabin. Alternatively, it is connected to a pillar provided in the vicinity of the rear pillar, and the air outlet is arranged in the rear pillar or the pillar in the vicinity thereof.

[0005]

The air conditioner and the air outlet are not arranged in front of the driver's seat. Therefore, the front view of the driver is not obstructed by the air conditioner and the air outlet, and the wide front area is the same as when the air conditioner is not installed. A view and a wide operation space can be obtained, and further, the air outlet is arranged at or near the rear support,
The warm or cool air is applied from both sides of the driver sitting in the driver's seat to create a comfortable cabin indoor environment.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the configuration of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an overall side view of a tractor equipped with a cabin, and FIG. 2 is a side view of the interior of a cabin in which an air conditioner is installed.

The overall construction of the tractor will be described with reference to FIG. A front wheel FW is suspended in the front and a rear wheel RW is suspended in the rear, and a bonnet B forming an engine room having an engine is mounted in the front.
A cabin C is arranged in the rear part of the vehicle. The cabin C is
It is supported by a front strut 4 and a rear strut 5 which are erected in the up-down direction, and an upper part is covered with a ceiling portion 6, and a windshield 7 (FIG. 2) and both side rear strut 5 are provided between the front strut 4 on both sides. A rear glass 8 is fitted in between, and a glass-covered cabin door 9 is disposed on both sides between the front strut 4 and the rear strut 5, and the rear end of the cabin door 9 is a rear strut. It is connected to 5 with a hinge and can be opened and closed freely. Below the left and right cabin doors 9 is a fender 3, which forms a part of the side surface of the cabin C and serves as a mudguard from the rear wheels RW. In the cabin C having such a configuration, the dashboard 1 that also serves as a panel box in the front part
3 is provided, and the steering handle 1 is provided from the dashboard 13.
4 is provided so as to project, and the driver's seat S shown in FIG. 2 is arranged at the rear part of the steering handle 14.

Next, the mounting structure of the air conditioner in the cabin C will be described with reference to FIG. The cover 1 of the hydraulic system is installed at the lower rear of the cabin C between the left and right fenders 3 and 3.
The driver's seat S is installed above the cover 1 and the air conditioner A is installed behind the cover 1. Further, a rear cover 2 forming a rear portion of the cabin C is provided between the left and right fenders 3 above the rear end portion of the floor material 1 to cover and support the rear of the air conditioner A. The air conditioner A is equipped with a heater, a cooler, or an air conditioner so as to generate hot air or cold air. An exhaust duct 10 for sending the hot air or cold air is connected to the left and right rear columns 5 and 5. In addition, the outlets for blowing hot air or cold air into the cabin are the side outlets 11.1 opened on the left and right rear columns 5.
1 and the rear air outlet 12 which is open at the upper rear position of the driver's seat 2 in the main body of the air conditioner A.

In the cabin structure of this embodiment, the exhaust duct 10 is directly connected to the rear support 5, and the side outlet 11 is provided.
However, due to the structure of the cabin, it may be provided on the column at the rear end of the cabin. In this case as well, since a pillar (intermediate pillar) for hinge-supporting the rear end of the cabin door is erected, if the exhaust duct and the air outlet are arranged on the pillar, the same effect as that of this embodiment is obtained. Is obtained.

As described above, since the air conditioner A is arranged behind the driver's seat S and the exhaust duct is arranged on the rear pillar or the pillar in the vicinity thereof, the space in the cabin by the air conditioner is narrowed. Therefore, the air conditioner does not intervene in the front view from the driver's seat. In addition, since the air outlet is opened in the rear support 5, the driver can be exposed to warm air or cold air from both sides to create a comfortable indoor environment.

[0011]

The present invention has the following effects by being configured as described above. That is, conventionally, by arranging an air conditioner or an exhaust duct for air conditioning the cabin, the space inside the cabin is narrowed,
Although the front view was deteriorated, by providing an air conditioner, an air exhaust duct, or an air outlet as in the present invention, it is possible to perform a wide operation without narrowing the space in the cabin by these members. A space for use and a front view can be obtained, and since the air outlets are located on both sides of the driver's seat, the driver is exposed to hot air or cold air from both sides, further improving the comfort in the cabin.

[Brief description of drawings]

FIG. 1 is an overall side view of a tractor equipped with a cabin.

FIG. 2 is a side view of the interior of a cabin provided with an air conditioner.

[Explanation of symbols]

 A Air conditioner C Cabin 1 Floor material 2 Rear cover 3 Fender 4 Front strut 5 Rear strut 6 Ceiling 10 Air exhaust duct 11 Side air outlet 12 Rear air outlet

Claims (2)

[Claims] 1. An agricultural tractor having a structure in which the upper part of the driver's seat is covered with a cabin, wherein the air conditioner in the cabin is installed behind the driver's seat and in front of the rear cover. 2. The agricultural tractor according to claim 1, wherein the exhaust duct of the air conditioner is connected to a rear pillar of the cabin or an intermediate pillar provided in the vicinity thereof, and the air outlet is arranged in the rear pillar or the pillar in the vicinity thereof. An air conditioner for agricultural tractors characterized by being installed.