JPH058170Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention is a duct for a vehicle air conditioner (hereinafter referred to as
The present invention relates to a duct for vehicle air conditioning (referred to as "vehicle air conditioning duct"), and in particular to a duct with cuts for vehicle air conditioning, which is formed to be bendable so as to improve workability during vehicle assembly and maintenance.

[Conventional technology]

Conventional vehicle air conditioning ducts include 8th to 10th ducts.
The one shown in the figure is known.

FIG. 10 is a schematic diagram showing the overall structure of a conventional vehicle air conditioner. In the figure, reference numeral 1 is an in-vehicle air pipe that communicates with the inside of the car to take in air from inside the car, and 2 is an outside air pipe that opens to the outside of the car to take in air from outside the car. A blower 3, a cooling unit 4, and a heating unit 5 are sequentially connected to these pipes 1 and 2 to form an air flow path, and air is blown into the vehicle interior from each outlet 6 to 8. It's becoming like that.

This air flow path is divided into a defroster side outlet 6, an instrument panel front side outlet 7, and an instrument panel lower side outlet 8 within the heating unit 5, respectively.

A vehicle air conditioning duct 10 is connected to the instrument panel lower side outlet 8 in order to blow out cold air or warm air to the driver's seat side and the passenger seat side, respectively, in the vehicle.

This duct 10 includes a distribution section 11 that distributes air from the heating unit 5 to the driver's seat side and the passenger seat side.
, a driver's seat side duct part 12 connected to this distribution part 11 and for blowing cold air or warm air from the front instrument panel side on the driver's seat side; The passenger seat side duct part 13 is configured to blow out cold or warm air from the passenger seat side.

That is, the distribution section 11, the driver's seat side duct section 12
As shown in FIGS. 8 and 9, the passenger seat side duct portion 13 is integrally formed by blow molding, and each connecting portion 14 and air outlet 15 are cut out at the dashed line portion in each figure. They are integrated with each other to form a vehicle air conditioning duct 10.

The conventional vehicle air conditioner configured as described above is installed as follows during the vehicle manufacturing process.

After the blower 3, cooling unit 4, and heating unit 5 are assembled inside the instrument panel on the front of the vehicle, the distribution section 11 of the vehicle air conditioning duct 10 is installed.
and the passenger seat side duct part 13 are assembled, and then the steering shaft is attached to the driver's seat side, and then the driver seat side duct part 12 is attached.

[Problem that the invention attempts to solve]

By the way, in the conventional vehicle air conditioning duct as described above, the duct consists of three parts: the distribution part 11, the driver's seat side duct 12, and the passenger seat side duct part 13, so there are many parts, and the vehicle In the manufacturing process, there are problems in that the number of installation steps increases and the manufacturing cost increases.

The present invention attempts to solve the above-mentioned problems by making it possible to integrally mold the entire duct while reducing the number of installation steps required when installing a vehicle air conditioning unit, thereby reducing manufacturing costs. An object of the present invention is to provide a duct with a cut for vehicle air conditioning, which allows the duct to be measured.

[Means for solving problems]

For this reason, the duct with a cut for vehicle air conditioning of the present invention has one bendable side wall in the duct that is connected to the air conditioning unit of the vehicle, between the connection part to the air conditioning unit and the part where it is attached to the vehicle body. The duct is characterized in that a cut is formed in the vehicle, and the edges of the duct that face each other through the cut are configured to abut each other when the duct is assembled to the vehicle.

[Effect]

In the above-mentioned duct with a cut for vehicle air conditioning of the present invention, when the air conditioning unit is assembled to the vehicle body or when parts are removed for maintenance or repair, the duct is bent from the cut and left on standby, so that assembly work, maintenance or repair work can be carried out. After that, it is returned to its original state and fixed to the vehicle body.

〔Example〕

Hereinafter, a slit duct for vehicle air conditioning as an embodiment of the present invention will be explained with reference to the drawings.
Fig. 1 is a front view thereof, Fig. 2 is a schematic configuration diagram thereof, Fig. 3 is a sectional view taken along the - arrow in Fig. 1, Fig. 4 is a sectional view taken in the - arrow direction of Fig. 1, and Fig. 5 is a sectional view taken in the - arrow direction of Fig. 1. FIG. 6 is an enlarged view of the part shown in FIG. 1, FIG. 6 is a sectional view corresponding to FIG.
It is an arrow sectional view.

Reference numeral 17 in FIGS. 1 and 2 indicates an instrument panel on the front of the vehicle, 18 indicates a steering wheel, and 19 indicates a steering shaft. Inside the instrument panel 17,
A vehicle air conditioning unit 20 is provided, and this air conditioning unit 20 has a blower 2 as in the conventional example.
1, a cooling unit 22 and a heating unit 23.

A notched duct 24 is attached to the heating unit 23, and the duct 24 is integrally molded from a resin material such as polyethylene (PE) or polypropylene (PP).

The duct 24 is integrally formed of the resin material and includes a distribution section 25 connected to the heating unit 23, a driver's seat side duct section 26, and a passenger seat side duct section 27.

The distribution section 25 has a function of distributing the air from the heating unit 23 to the driver's seat side and the passenger seat side,
The air distributed to the driver's seat side is transferred to the driver's seat side duct section 2.
Air blown out through the passenger seat side duct 27 and distributed to the passenger seat side is blown out through the passenger seat side duct section 27.

Each duct part 26, 27 is connected to a distribution part 25
The portions 26a, 2 immediately rise upward from both sides of the
7a, and each rising portion 26
A, 27a are continuously provided with horizontal portions 26b, 27b extending to both sides along the lower edge of the instrument panel 17, and these horizontal portions 26b, 27b are provided with air to the driver's seat and passenger seat, respectively. A blowout port 29 for blowing air is provided.

The driver's seat side duct part 26 has a horizontal part 26b.
In this case, a cut 30 is formed near the connection portion with the rising portion 26a. Moreover, in the passenger seat side duct part 27, in the rising part 27a,
A cut 31 is formed near the connection part with the distribution part 25. Attachment stays 32 and 33 are integrally formed at the tip of each duct portion 26 and 27, respectively, as attachment portions for attaching these to the instrument panel 17 (vehicle body side).

The driver's seat side duct section 26 is disposed directly below the steering shaft 19, as shown in FIG. 3, and the passenger seat side duct section 27 is disposed immediately in front of the cooling unit 22, as shown in FIG. will be established.

As shown in FIGS. 5 to 7, each cut 30, 31 is formed by making a cut in the entire duct part 26, 27, which has a rectangular cross section, leaving one side wall (bottom wall) 35. As a result, the duct portions 26, 2
7 can be bent around this one side wall 35 due to the hinge function of one side wall 35 made of a resin material. Further, on both sides of each cut 30, 31, opposite end edges 3 are provided.
Single bellows 36, 37 are formed respectively so that 0a, 30b, 31a, 31b have elasticity when they come into contact with each other. In addition, on the side of one bellows 36 facing the bellows 37, that is, on the outside of the edges 30b and 31b, a packing 38 is attached only to the upper edge or to the upper edge and both side edges, as shown in FIG. ing.

Notched duct 24 configured as above
is installed in the vehicle manufacturing process as follows.

First, the blower 21 of the air conditioning unit 20, the cooling unit 22, and the heating unit 23 are installed in the instrument panel 17.
After the heating unit 23 has been installed, the distribution section 25 of the slotted duct 24 is connected to the heating unit 23. The passenger seat side duct portion 27 of the duct 24 is fixed to the instrument panel 17 via its mounting stay portion 33.

The driver's seat side duct portion 26 is bent downward at the cut 30 and placed in a standby state as indicated by a broken line 40 in FIG. Next, steering shaft 1
9 and the steering wheel 18 are installed,
The driver's seat side duct part 26 is returned to its original state at the cut 30 and is fixed to the instrument panel 17 via the mounting stay part 32.

When the cooling unit 22 is removed for repair or maintenance, the stay section 33 of the passenger side duct section 27 is removed from the instrument panel 17, and then the duct section 27 is bent downward at the cut 31. , it is put into a standby state as indicated by a broken line 41 in FIG. In this state, as shown in FIG. 4, the cooling unit 22 is removed and its repair and maintenance are performed. Then, after the repaired cooling unit 22 is assembled at its original location, the duct section 27 is returned to its original state at the cut 31, and is fixed to the instrument panel 17 via the stay section 33. .

As described above, since the duct 24 of the present invention has a structure that can be bent at each cut 30, 31 and is integrally molded, the number of parts is reduced, and the number of installation steps in the vehicle manufacturing process is also reduced. , its manufacturing cost can be significantly reduced. Furthermore, the number of man-hours required during maintenance can be reduced, contributing to improved workability.

In addition, in this embodiment, each cut 30, 31 is
Although the horizontal portion 26b is provided near the connection portion with the rising portion 26a and the rise portion 27a is provided near the connection portion with the distribution portion 25, the present invention is not limited thereto. In other words, the cuts 30 and 31 are formed between the connection part of the duct 24 with the air conditioning unit 20 and the respective mounting stays 32 and 33, and do not cause any trouble when removing the steering shaft 19 or the cooling unit 22. It is sufficient if it is provided at a certain position, and the function of the present invention is thereby exhibited.

Further, bellows 36 and 37 were provided on both sides of each cut 30 and 31, respectively. For example, each bellows 3
6, 37, or multiple bellows 36,
37, the functions of the present invention can be fully exhibited.

Furthermore, the cuts 30 and 31 are formed in each duct 26,
Although it is provided perpendicularly to the axial direction of 27, it may be provided obliquely.

Further, the gasket 38 may be omitted.

[Effect of idea]

As detailed above, according to the vehicle air conditioning duct with a cut of the present invention, a cut is provided between the connection part of the duct to the air conditioning unit and the part where it is attached to the vehicle body, so that it has a bendable structure. Therefore, in addition to reducing the number of parts, the number of installation man-hours in the vehicle manufacturing process is reduced, resulting in a significant reduction in manufacturing costs.In addition, the number of man-hours during maintenance is reduced, which improves work efficiency. can also contribute.

[Brief explanation of the drawing]

Figures 1 to 7 show a slit duct for vehicle air conditioning as an embodiment of the present invention, in which Figure 1 is a front view thereof, Figure 2 is a schematic configuration diagram thereof, and Figure 3 is the same as Figure 1. Fig. 4 is a sectional view taken in the - arrow direction of Fig. 1, Fig. 5 is an enlarged view of the part shown in Fig. 1, and Fig. 6 corresponds to Fig. 5 to show its operating state. 7 is a sectional view taken along the - arrow in FIG. 5, FIGS. 8 to 10 show a conventional vehicle air conditioning duct, and FIG. 8 is a plan view showing the duct portion with an air outlet. , FIG. 9 is a plan view showing the distribution section thereof, and FIG. 10 is a plan view showing the state in which it is installed in a vehicle air conditioner. 17...Instrument panel, 18...Steering, 19
... Steering shaft, 20 ... Vehicle air conditioning unit, 21 ... Blower, 22 ... Cooling unit, 23 ... Heating unit, 24 ... Vehicle air conditioning duct with a cut, 25 ... Distribution section, 26 ... Operation Seat side duct part, 26a... rising part, 26
b...Horizontal part, 27...Passenger seat side duct part, 27
a...Rising part, 27b...Horizontal part, 29...
...Air outlet, 30, 31... Cut, 30a, 30
b, 31a, 31b... Edges sandwiching the cuts 30, 31 of the duct parts 26, 27, 32, 33... Mounting stay portion, 35... One side wall, 36, 37... Bellows, 38... Packing.

Claims (1)

[Scope of utility model registration request] A duct with a slit for vehicle air conditioning, which is connected to an air conditioning unit of a vehicle, is characterized in that a slit is formed in a portion between a connection portion to the air conditioning unit and a mounting portion to a vehicle body, leaving one bendable side wall, and the edges of the duct facing each other across the slit are configured to abut against each other when the duct is assembled to the vehicle.