JPH0986155A - Air conditioner for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make circumstances of a worker, etc., outside by providing a duct for outside air conditioning to lead air conditioning air from an air conditioning unit for a vehicle of a construction machine, etc., outside by branching it and supplying air of the duct for outside air conditioning to the outside worker through a hose having mobility. SOLUTION: Air conditioning air is blown out to the inside of a driver's cab 3 by arranging an air conditioning unit 7 in the rear of a driver's seat 5 in a vehicle main body 1 and connecting a duct 9 to lead air conditioning air from it to a distribution duct 13 in case of applying it to a construction machine (power shovel, etc.). Additionally, a duct 61 for outside air conditioning branched from the duct 9 connected to the air conditioning unit 7 is branched and connected to the side of a lower part 3a of an outside body of the driver's cab 3, and a hellows type hose 65 having mobility is connected to its head end side. The head end side of this hose 65 is supported at a position of specified height by a stay 67 and directed to a worker 69 working outside, and consequently, it is devised to supply air conditioning air to the worker 69.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides an air conditioner unit in a vehicle with a branch passage or a duct that leads to the outside.
The present invention relates to a vehicle air conditioner capable of sending cold air or hot air to the outside of a vehicle via a flexible hose.

[0002]

2. Description of the Related Art As a conventional vehicle air conditioner,
There is one disclosed in Japanese Patent Publication No. 8-28891. As shown in FIGS. 10 and 11, this is applied to a construction machine, and an air conditioner unit 7 is arranged behind a driver's seat 5 in a driver's cab 3 of a vehicle body 1, and the air conditioner unit 7 is located in front of 9 that extends to and guides conditioned air
Is connected to a distribution duct 13 provided below the instrument panel 11, and conditioned air is blown into the cab 3 from each outlet of the distribution duct 13 described later.

As shown in FIG. 11, the air conditioner unit 7 includes an intake door 19 for switching between the outside air introduction port 15 and the inside air introduction port 17 from the upstream side, an evaporator 21 cooled by driving a cooling cycle (not shown), and a partition plate. Two
3, an air mix door 25, a heater core 27 that is heated by circulation of engine cooling water, a hot water valve 29 that controls the circulation amount of engine cooling water in conjunction with the air mix door 25, and a blower 31 that rotates by driving a blower motor Is configured. The blower 31 is installed at a position communicating with the duct 9, and the tip of the duct 9 is connected to the distribution duct 13.

The distribution duct 13 has a defrost outlet 3
3, a face outlet 35, and a foot outlet 37 are provided. The mode door 39 opens and closes between the duct 9 and the defrost outlet 33, and the mode door 41 opens the face outlet 3.
5 and the foot outlet 37 are opened and closed.

Reference numeral 43 denotes an operation panel attached to the surface of the instrument panel 11. The rotation speed of the blower 31 is controlled according to the operation of the air flow rate knob 45 on the operation panel 43, and the inside / outside air switching lever 47 is operated. Accordingly, the position of the intake door 19 is controlled, the opening of the air mix door 25 is controlled according to the operation of the temperature control lever 49, and the opening / closing positions of the mode doors 39 and 41 are controlled according to the operation of the mode control lever 51. To be done.

Based on the operation of each of the levers 47, 49, 51 and the air flow rate knob 45, at a tuned predetermined temperature,
Since a predetermined amount of air is blown through the duct 9 from any one of the defrost outlet 33, the face outlet 35, and the foot outlet 37, the air conditioning inside the cab 3 can be controlled.

[0007]

In the conventional air conditioner for a vehicle, the conditioned air is supplied only to the inside of the cab 3 due to its structure, and the conditioned air is provided to an operator working outside. It could not be done.

The present invention has been made in view of the above problems, and it is possible to supply conditioned air to an external worker or the like, thereby making the environment of the worker or the like comfortable. The purpose is to provide a device.

[0009]

According to the first aspect of the present invention,
An external air conditioning duct for guiding the conditioned air from the air conditioning unit to the outside is provided, and a branch passage for branching the air guided from the air conditioning unit to the external air conditioning duct is provided to flex the air of the external air conditioning duct. It is characterized in that it can be supplied to an external worker through a flexible hose. The invention according to claim 2 is characterized in that a recess for accommodating the flexible hose is provided in the body.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. First Embodiment of the Invention 1, FIG. 2, and FIG. 3 are the first of the present invention.
12 is an explanatory view for explaining the embodiment of FIG.
The same parts as those shown in FIG. As shown in FIG. 1, this embodiment is also applied to a construction machine (power shovel, etc.), and an air conditioner unit 7 is arranged behind a driver's seat 5 in a driver's cab 3 of a vehicle body 1. A duct 9 for guiding the conditioned air from the air conditioner unit 7 is connected to a distribution duct 13 provided below the instrument panel 11, and the conditioned air is blown into the cab 3 from a blowout port (not shown) of the distribution duct 13. In addition, a duct 9 connected to the air conditioner unit 7 is provided at a predetermined position of the vehicle body 1, for example, on the lower portion 3a side of the body outside the cab 3.
The tip of the external air-conditioning duct 61 as a branched path is further guided, and a bellows-shaped hose 65 is connected as a flexible hose to the tip side of the external air-conditioning duct 61. There is. The end of the hose 65 is a stay 6
In FIG. 7, it is supported at a position of a predetermined height and is directed to a worker 69 who works outside, and supplies conditioned air to the worker 69.

It can be considered that the hose 65 is detachable from the external air conditioning duct 61. Also duct 9
As shown in FIG. 2, an external switching door 62 that opens and closes the external air conditioning duct 61 is provided at a connection position between the external air conditioning duct 61 and the external air conditioning duct 61. The external switching door 62 is opened and closed according to the operation of the external switching lever 63 provided on the operation panel 43, and can control the amount of air introduced to the external air conditioning duct 61.

As shown in FIG. 3, the stay 67 has a U-shaped portion 67b which is fixed to the tip of the stay 67a and holds the tip of the hose 65, and the stay 67a which is rotatably and telescopically inserted and held. A pipe-shaped support 67c, a stay set screw 67d that is screwed into the side surface of the support 67c from the outside to fix the stay 67a to the support 67c, and the support 67
and a bottom plate 67e for fixing the inverted c.

If the member for fixing the upright position of the column 67c is not the bottom plate 67e but is composed of several legs that can be expanded and contracted in a radial direction downward from the column 67c, the column 67c can be vertically supported even on an inclined ground. It is possible to maintain a perfect inverted position.

Next, the operation will be described. First, according to the operation of the inside / outside air switching lever 47 to a desired position, the position of the intake door 19 is determined to be the position to open the outside air introducing port 15 or the position to open the inside air introducing port 17, and the inside of the air conditioner unit 7 is thereby determined. The aspirated air is determined to be outside air or inside air. When the blower volume knob 45 is turned to set to L (low speed), M (medium speed), or H (high speed), the blower motor is driven according to the designation and the blower 31 rotates,
Air is supplied into the duct 9. When the temperature control lever 49 is operated to a desired position, the opening degree of the air mix door 25 is determined according to the position, and the temperature of the conditioned air of cold air or warm air supplied into the duct 9 by the rotation of the blower 31 is determined. To be done.

In this state, the mode control lever 5
When 1 is operated to position the mode door 39 at the position a in the figure, the defrost outlet 33 is opened, and the conditioned air is blown out from the defrost outlet 33. Mode door 39
Is located at the position of b in the figure, the defrost outlet 3
3 is closed, and conditioned air is supplied to the face outlet 35 and the foot outlet 37 side. Mode control lever 51
When the mode door 41 is further moved to the position a in the figure by further operating, the face outlet 35 is opened, the foot outlet 37 is closed, and the conditioned air is blown out from the face outlet 35. When the mode door 41 is located at the position of b in the figure, the face outlet 35 is closed and the foot outlet 37 is closed.
Is opened, and conditioned air is blown from the foot outlet 37.

On the other hand, when the external switching lever 63 is operated to position the external switching door 62 at the position a in the figure, the external air conditioning duct 61 is opened and the conditioned air supplied from the blower 31 is supplied to the external air conditioning duct 61. And through the bellows-shaped hose 65, and is sprayed on the worker 69 working outside. The conditioned air blown to the worker 69 is cold in the summer and warm in the winter.

In the first embodiment, the air conditioner unit 7
An external air conditioning duct 61 drawn to the lower part 3a side of the body forming the cab 3 is connected to the duct 9 between the distribution duct 13 and the distribution duct 13, and a bellows-shaped hose is provided at the tip end side of the external air conditioning duct 61. Since the 65 is connected, it becomes possible to supply the conditioned air to the external worker 69 and the like.
The environment such as 9 can be made comfortable. It is also possible to pull out the hose 65 from the vehicle and connect it to a tent or a relatively small hut (workplace, etc.), in which case it is possible to air-condition the tent and hut without the need to purchase air conditioning equipment. It is very convenient to control. Further, even if frost, snow, or the like adheres to the outside of the windshield in the winter, etc., the hose 65 can be pulled to apply warm air to remove the frost, snow, or the like. This vehicle air conditioner can follow the conventional vehicle air conditioner system and can be manufactured at extremely low cost.

Embodiment 2 of the Invention 4 to 8 are explanatory views for explaining the second embodiment of the present invention. FIG.
As shown in FIG. 4, this embodiment is also applied to the construction machine, and the air conditioner unit 7 is arranged behind the driver's seat 5 in the cab 3, and the duct 9 for guiding the conditioned air from the air conditioner unit 7 is provided. It is connected to a distribution duct 13 provided below the instrument panel 11, and conditioned air is blown into the cab 3 from various outlets of the distribution duct 13. Also, for example, the lower portion 3 of the body of the vehicle body 1 that constitutes the cab 3,
As shown in FIG. 5, a concave portion 71 having a door 70 that can be opened and closed is formed on the a side, and the concave portion 71 is formed by denting a part of a body 73 by, for example, press working. The tip of the air conditioning duct 61 has a hole 7 in the center of its bottom plate.
1a is inserted. A bellows-shaped hose 65 is connected to the tip of the external air conditioning duct 61, and is contracted and accommodated in the recess 71.

Inside the door 70, there is provided a fixing portion 75 made of a cylindrical cap member with which the opening end of the hose 65 is fitted. The fixing portion 75 has a protrusion 77 at a part of the outer circumference, for example, at a position located above the protrusion 77, which is extended by a spring in the fixing portion 75 and abuts against the inner surface of the hose 65 to prevent the hose 65 from coming off the fixing portion 75. I have it. By fitting the opening end of the hose 65 into the fixed portion 75, the expansion and contraction of the hose 65 can be followed when the door 70 is opened and closed. On the other hand, since the door lock mechanism 81 for locking the door lock key 79 provided on the door 70 is provided at the other end on the open side of the recess 71, when the door 70 is closed, the door 70 is closed. Maintained in a mature state. In the state of FIG. 7, if the door 70 is opened and the tip of the hose 65 is unlocked, the hose 65 can be extended as shown in FIG.

Reference numeral 83 is an open / close switch which is activated when the door 70 is opened to enable the switching operation of the external switching door 62 based on the external switching lever 63.

By providing the opening / closing switch 83, the door 70
The switching of the external switching door 62 is effective only when the air conditioner is open, the external air conditioning duct 61 is opened, and the hose 65 is opened.
Since the conditioned air is blown out from the hose 65, the conditioned air is blown out from the hose 65 when the door 70 is closed, which is unnecessary for connecting the external air conditioning duct 61 and the recess 71 and engaging the hose 65 and the protrusion 77. It does not give a load.

The operation and effect of the second embodiment are substantially the same as the operation and effect of the first embodiment, but in particular, the tip of the hose 65 can be fixed to the door 70 by the lock mechanism. Therefore, when the door 70 is opened, the hose 6
Since 5 follows the door 70 and extends, it is possible to inform that the hose 65 is not, for example, a fuel filler port, and to prevent accidental refueling.

The structure of the lock mechanism is not limited to that of the protrusion 77, and various structures such as hooks and magnets are conceivable. In addition, the switches necessary for controlling the conditioned air blown out from the hose 65 are provided in the recess 7
It may be provided on the body 1 or in the body near the recess 71. In this case, it is convenient for the outside worker 69 to perform necessary operations from the outside without entering the operator's cab 3.

Embodiment 3 of the Invention 9 (a), (b)
[FIG. 11] is an explanatory diagram for explaining a main part of a third embodiment of the present invention, and in the third embodiment, the duct 9 shown in FIG.
A branch window 91 for branching the air is formed on the side surface of the branch window 91. The branch window 91 is not shown in detail in the drawings but is rotatable toward the inside of the duct 9 and is automatically moved by, for example, a spring force. A door is installed to keep it closed. It is desirable that the fulcrum side of rotation of the door be set in a direction parallel to the ceiling surface of the duct 9 so that the door can be rotated even when conditioned air flows through the duct 9. . A duct as a branch passage to which a bendable hose can be connected may be inserted into the branch window 91, but a non-bendable pipe 92 as a branch passage formed in the bendable hose itself may be inserted. Is possible. This may be a method in which the worker manually pushes in. The tip of the pipe 92 is obliquely cut so that the opening portion 93 is directed to the upstream side of the duct 9 so that the conditioned air can easily flow into the pipe 92 when inserted into the duct 9.

Next, the operation will be described. First, the pipe 92 formed on the flexible hose itself is connected to, for example, the cab 3
By pushing and inserting into the opening (not shown) formed on the lower side 3a side of the body of the outside of the body, the above-mentioned door of the duct 9 is pushed and rotated by the tip of the pipe 92, thereby opening the branch window 91. While pushing it, push it further into the pipe 9
Insert the tip of No. 2 into the duct 9 through the branching window 91, and
As shown in (b), the tip of the pipe 92 is brought into contact with the opposite side surface of the duct 9. At this time, the opening portion 93 at the tip of the pipe 92 is directed to the upstream side of the duct 9. After this state, for example, the air flow rate knob 45 shown in FIG.
When is turned to set to L (low speed), M (medium speed), or H (high speed), the blower motor is driven according to the designation to rotate the blower 31, and the conditioned air is supplied into the duct 9. However, this conditioned air flows into the pipe 92 through the opening portion 93 of the pipe 92 and is blown out from a hose (not shown) integrated with the pipe 92, as shown by a dotted arrow.

In the third embodiment, the first embodiment
Since the external switching lever 63 described in 1 is unnecessary, the configuration is simpler and the cost can be further reduced.

In the first, second and third embodiments, the case where the present invention is applied to the construction machine has been described, but the gist of the present invention is not limited to this, and other Of course, it can be applied to a general private vehicle.

[Brief description of drawings]

FIG. 1 is an explanatory diagram illustrating an appearance of a first embodiment of the present invention.

FIG. 2 is an explanatory diagram illustrating an internal configuration of the first embodiment of the present invention.

FIG. 3 is a perspective view showing a configuration of a stay applied to the first embodiment of the present invention.

FIG. 4 is an explanatory diagram illustrating an appearance of a second embodiment of the present invention.

FIG. 5 is a partial cross-sectional view illustrating an enlarged main part of a second embodiment of the present invention.

FIG. 6 is an enlarged front view showing a main part of a second embodiment of the present invention.

FIG. 7 is an explanatory diagram illustrating one usage mode of the second embodiment of the present invention.

FIG. 8 is an explanatory diagram illustrating one usage aspect of the second embodiment of the present invention.

FIG. 9 is a schematic diagram illustrating a main part of a third embodiment of the present invention.

FIG. 10 is an explanatory diagram illustrating an appearance of a conventional technique.

FIG. 11 is an explanatory diagram illustrating an internal configuration of a conventional technique.

[Explanation of symbols]

 1 Vehicle Main Body 7 Air Conditioner Unit 9 Duct 39, 41 Mode Door 43 Operation Plate 61 Duct 62 External Switching Door 63 External Switching Lever

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toyoaki Yagihara 39, Toyohara, Chiyo-ji, Konan-cho, Osato-gun, Saitama Prefecture Zexel Konan Plant Co., Ltd.

Claims (2)

[Claims] 1. An external air conditioning duct for guiding the conditioned air from the air conditioning unit to the outside, and a branch passage for branching the air guided from the air conditioning unit to the external air conditioning duct. The air conditioner for a vehicle, which is capable of supplying the above air to an external worker through a flexible hose. 2. The vehicle air conditioner according to claim 1, wherein a recess for accommodating the flexible hose is provided in the body.