JP2000343933A - Simplified air conditioner for work vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To send a conditioned air from a simplified air conditioner to protect an operator even if in summer or in cool autumn by disposing the air conditioner such that temperature-changed air from the air conditioner is blown upward from below an operation seat. SOLUTION: In this air conditioner, an air conditioning apparatus 5 is provided below a step 4a of an operation seat 4 mounted in a traveling vehicle body 2 of a work vehicle, while a blast duct 7 with a tip connected with a blast grille 6 is connected to the air conditioning apparatus 5 such that the blast duct 7 communicates with the air conditioning apparatus 5. The blast grille 6 is disposed such that temperature-changed air (hot air, cool air or blast air) from the air conditioning apparatus 5 is blown upward from below the operation seat 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a simplified air conditioner for a working vehicle.

[0002]

2. Description of the Related Art Conventionally, moving vehicles such as agricultural work machines, civil engineering works, and construction work machines are equipped with a cabin on which a pilot sits on a vehicle body. The configuration has been devised to raise The air conditioner is installed on the ceiling of the cabin, and a grill that blows air (heat, cool air, and blast) from the air conditioner into the cabin room is opened above the operator's head, and furthermore, dehumidification associated with the air conditioning action is performed. A drain hose for drainage generated by condensing moisture in the air is piped from the ceiling to the rear of the cabin.

[0003]

The conventional construction described above is a full-scale cabin-type work vehicle equipped with an air conditioner, and the interior of the cabin is kept at a comfortable temperature by being shut off from the outside. Leaning can improve work efficiency. However, this conventional model inevitably requires a large traveling body,
There has been a problem that the manufacturing cost is high, which is not suitable for a lightweight, compact and widespread work vehicle.

[0004]

The present invention takes the following technical means in order to solve the above-mentioned conventional problems. That is, in a working vehicle in which the control seat 4 is mounted on the traveling vehicle body 2, the air conditioner 5 provided below the step 4a of the control seat 4 is provided with a ventilation duct 7 having a blower grill 6 connected to the end thereof. , The blast grille 6
And a simplified air conditioner for a working vehicle configured to allow the temperature-changed air (hot air / cold air / blast) blown from the air conditioner 5 to blow upward from below the control seat 4. did.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described by taking a combine, which is an agricultural machine, as an example. The combine has a structure in which a threshing device 1 is mounted on a vehicle body 2 having a crawler 8 and a cutting pre-processing device 3 is provided in front of the threshing device 1 for cutting and threshing. And the threshing device 1
As is well known in the art, a handling chamber having a handling cylinder mounted on the upper side is arranged and provided on the upper side, and a swing sorting apparatus and a sorting chamber having a pressurized wind are arranged on the lower side. The pre-cutting device 3 is provided with a weeding rod 9 at the front low position, a grain stem raising device 10 at the rear thereof, a cutting device 11 at a low position behind the same, and threshing the harvested grain culm. A cereal culm conveying device 12 for conveying to the device 1 is provided and configured.

[0006] As shown in FIGS. 1 to 3, the control seat 4 is located beside the cutting pre-processing device 3 and is provided with a threshing device 1.
And an operation lever and operation panels (operation switches) for operating the traveling vehicle body 2 and each work machine (threshing machine 1 and pre-cutting device 3) are provided in a concentrated manner. Next, the air conditioner 5 is installed below the step 4a of the control seat 4, and the conditioned air (hot air
(Cool air / blast) is blown out to the ventilation duct 7 and sent upward. A gas pipe and a hot water pipe attached to the air conditioner 5 are laid along the machine body, and the gas pipe is connected to a condenser 15 provided at an upper portion of the threshing apparatus 1, and the hot water pipe is connected to a lower engine side. The former is used for cooling, and the latter is used for heating.

As shown in FIG. 1, the blast grille 6 is attached to the upper end of the air duct 7 and is provided with an opening so as to blow upward from below the operator sitting on the control seat 4. The air (hot air, cold air, or air) flowing in the air duct 7 can be blown out to the operator side. The sun visor 19 is shown in FIGS.
As shown in FIG. 4, a cloth is stretched around the surrounding frame material to form a ceiling portion, and both sides of the rear portion are freely bent to the support rods 20 and 20 'by tightening screws as shown in FIG.
The lower portions of 0 and 20 'are connected to a mounting machine frame 21 by screws 22 so as to be foldable.

[0008] In the combine work, the operator
Is seated on the cockpit 4 and starts the engine to prepare for the mowing and threshing work. At the same time, the user operates the dial on the operation panel to set the temperature of the air conditioner 5 and then starts. Then, the air conditioner 5 starts the air conditioning operation based on the equipped control mechanism, and uses the chlorofluorocarbon gas and the hot water circulated through the gas pipe and the hot water pipe to perform the air conditioning action by cooling and heating. It starts.

As described above, the air conditioner 5 blows out the air (hot / cold air) maintained at the set temperature into the blower duct 7 and blows out from the blower grill 6 at the tip toward the operator. Therefore, from the lower part of the cockpit 4 to the upper part,
Adjusted air at a set temperature flows out to cover the upper body of the operator to perform a simple air conditioning operation. At that time, the sun visor 19 plays a role of protecting the operator by blocking the direct rays of light, and furthermore, preventing the conditioned air blown out from escaping upward as described above as much as possible, thereby enhancing the air conditioning effect.

In the embodiment, the air conditioner 5 is provided below the step 4a of the cockpit 4 which is a closed space and is hardly affected by the surroundings. The air can be sucked and used for the air conditioning operation, and the space below the step 4a can be effectively used, so that there is no difference from the combine without the air conditioning equipment 5. Further, the filter 16 for filtering the air to the air conditioner 5 has the dustproof nets 17 and 17 'sandwiched in front and rear in the direction of sucking the outside air, and therefore does not suck the dust.

When the combine is advanced in the above-described state, the culm in the field is cut off by the pre-cutting device 3 and then transported rearward and upward to be supplied to the threshing machine 1 for threshing. The operator is protected by a simple air-conditioning device 5 in which the air is sent by the simple air conditioner 5 even in the hot summer season and, conversely, in the cold autumn season, so that the harvesting and threshing operation can be performed relatively easily.

Next, FIGS. 6 and 7 will be described. As described above, the outlet 23 from the air conditioner 5 installed in the space below the step 4a is provided directly in the step 4a. Then, the prepared air blown out from the blowout port 23 in the step 4a flows upward along the inner surface 4c of the operation post 4b on which instruments are arranged. As described above, in the present embodiment, since the blowing duct 7 and the blowing grill 6 are eliminated, a low-cost air conditioner can be provided.

Next, FIGS. 8 and 9 will be described. In this embodiment, an air conditioner 5 is installed behind a control seat 4 on a machine frame 14 which constitutes an outer frame of an engine room 13 together with attached devices, and is provided with conditioned air (heat / heat). (Cold air) is blown out to the air duct 7 and sent upward. The blast grille 6 is attached to the upper part of the air duct 7, and is provided so as to blow forward from above and behind the operator sitting on the control seat 4, and flows through the air duct 7. The air (hot air, cold air, and air) can be blown out to the operator side. In this case, the blast grille 6 blows the right side toward the operator and the left side toward the left side of the operator in the forward direction of the traveling vehicle body 2, so that the stalks being transported by the pre-cutting device 3 can be removed from the culm during transportation. The generated dust is arranged to flow away from the control seat 4. When the left blowing grill 6 is used only for dust removal, a blowing configuration in which normal air flows without using adjusted air (hot air / cold air) may be employed.

The sun visor 19 is constructed such that a ceiling portion is formed by stretching a cloth around a surrounding frame member, and both sides of the rear portion are freely attached to the supporting rods 20 and 20 'by tightening screws as shown in FIG. The lower portions of the rods 20 and 20 ′ are connected to the mounting machine frame 21 by screws 22 so as to be foldable.
In this case, the sun visor 19 exerts not only the function of blocking the original rain and the direct rays, but also the function of keeping the adjusted air blown out from the blast grille 6 as far as possible upward.

In the combine constructed as described above, the air (hot air, cold air, and air) flowing from the air duct 7 toward the blowing grill 6 and the air flowing rearward from the air duct 7a toward the control seat 4 are branched. A switching plate 24 is provided. The switching of the switching plate 24 is manually performed by an operator. The backrest portion 4d of the control seat 4 is formed of a mesh 25 through which air can pass.

When the operator switches the switching plate 24 so that the air is directed to the rear of the cockpit 4,
The air passes directly through the mesh 25 to the operator's back. Thereby, comfortable work can be performed. Next, FIGS. 10 and 11 will be described. In the embodiment of FIG. 8, the air protruding from the air duct 7 a is configured to blow out to the rear of the control seat 4. However, in the present embodiment, the air duct 7 a is extended and provided on the side of the control seat 4. Connected to the armrest 26 that is in use. Of course, the armrest 26 has a hole through which air can protrude, so that air blows out toward the operator. The direction in which air is blown out may be an upward vertical direction. In this case, the air acts as an air curtain to protect the operator from dust and the like. Thereby, the operator can work in a more comfortable working environment. In the embodiment, the armrest 26 is provided only on the right side of the operator, but may be provided on the left side or both sides.

As described above, since the conditioned air flowing out of the armrest 26 is directed upward, the conditioned air serves as an air curtain, so that dust from the surroundings can be prevented from coming to the worker. Moreover, if the conditioned air coming out of the armrest 26 is directed directly to the worker, comfortable work can be performed.

[0018]

As described above, according to the present invention, in a work vehicle in which the control seat 4 is mounted on the traveling vehicle body 2, the air-conditioning equipment 5 installed below the step 4a of the control seat 4 has the blast grill 6 at its tip. A blower grille 6 is provided in communication with the blower grille 7, and the blast grille 6 blows the temperature-changed air (hot air, cold air, and air blown) blown from the air conditioner 5 upward from below the control seat 4. Because it was configured to blow out, even in the hot summer season, on the contrary, in the cold autumn season, the conditioned air is sent by the simple air conditioner 5 and protected,
Cutting and threshing can be performed relatively easily.

[Brief description of the drawings]

FIG. 1 is a right side view of the combine.

FIG. 2 is a front view of the combine.

FIG. 3 is a left side view of the combine.

FIG. 4 is a right side view

FIG. 5 is a front view

FIG. 6 is a right side view of the combine.

FIG. 7 is a front view of the combine.

FIG. 8 is a right side view of the combine.

FIG. 9 is a front view of the combine.

FIG. 10 is a right side view of the combine.

FIG. 11 is a front view of the combine.

[Explanation of symbols]

Reference numeral 2 denotes a vehicle body, 4 denotes a control seat, 4a denotes a step, 5 denotes an air conditioner, 6 denotes a blast grill, and 7 denotes a blow duct.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hitoshi Watanabe 1st Hachikura, Tobe-cho, Toyo-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. In-house (72) Inventor Kenichiro Takeuchi 1 Toyocho, Hachikura, Toyo-cho, Iyo-gun, Ehime Pref.Iseki Agricultural Machinery Co., Ltd. Hiroshi Nishizaki 1 Yachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Engineering Department F term (reference) 2B076 AA03 CD08 2D015 EC01

Claims (1)

[Claims] 1. An air conditioner (5) provided below a step (4a) of a steering seat (4) of a working vehicle having a steering seat (4) mounted on a traveling vehicle body (2) communicates with a ventilation duct (7) connected to a blowing grill (6) at the tip. The blast grille 6 is provided with a temperature-changed air (hot air, cold air,
A simple air conditioner for a working vehicle, which is configured such that air is blown upward from below the control seat 4.