JPH061447Y2 - Car air conditioner packing - Google Patents

Description

[Detailed Description of the Invention] a. Purpose of the Invention (Industrial field of application) The packing of the air conditioner for a vehicle according to the present invention is such that a space between an intake unit and a heater duct forming the air conditioner for a vehicle is The air conditioner is configured to be sandwiched between the joints of the parts for circulating the air for air conditioning inside, and the airtightness of the joints is to be maintained.The present invention utilizes such packing. Safety measures can be taken without changing the shapes of the above parts.

(Prior Art) As shown in FIG. 5, an air conditioner for air conditioning in a vehicle interior is provided with a blower inside, and an intake unit 1 for taking in air for air conditioning and an intake unit 1 for taking in the air. Heater duct 2 for sending air to a heater unit (not shown), and a cooler unit (not shown) provided in place of the heater duct 2 between the intake unit 1 and the heater unit to cool the air by an evaporator provided inside. No) is provided.

Each unit and duct are manufactured separately so that they can be connected to each other when assembled in an automobile.

That is, the flanges 3 and 4 for coupling are provided at the end portions of each unit 1 and the duct 2, and at the time of coupling, the flanges 3 and 4 of the adjacent unit 1 and duct 2 are butted against each other via the frame-shaped packing 5. , The flanges 3 and 4 are coupled to each other by screws or the like.

(Problems to be Solved by the Invention) However, the following inconveniences occur due to the connection of each unit 1 and the duct 2 constituting the air conditioner as described above.

That is, if the air conditioner is installed only in a car for Japan or the United States, there is no particular problem, but if it is installed in an export specification car for the European Community (EC), each unit 1 and duct 2 are connected together. The shape of the part will have to be changed.

The exposed part of the car sold in the EC, including the case where a worker works in a repair shop, has a radius of 3.5 mm or more for all parts that may come into contact with the human body. It has been determined that
A curved surface must be formed also at the joint between the unit 1 and the duct 2 by the flanges 3 and 4.

For this reason, conventionally, the unit 1 and the flanges 3 and 4 of the duct 2 which constitute the air conditioner incorporated in the export specification vehicle for EC are formed with the build-up portion 6 as shown by the chain line in FIG. The outer peripheral surface of the raised portion 6 is a curved surface having a radius of 3.5 mm or more.

However, when the thick built-up portion 6 is formed on the synthetic resin unit 1 and the duct 2, the built-up portion 6 is easy to change,
Along with that, the flanges 3 and 4 are deformed, and it becomes difficult to maintain airtightness between the flanges 3 and 4, which causes inconvenience.

In addition, especially when the products that were not initially planned to be exported to EC were to be exported from the middle, it would be necessary to repair the mold for building the unit 1 and the duct 2, resulting in high mold repair costs. However, during the repair period, there will be inconveniences such as the inability to manufacture units and ducts including those sold in places other than EC.

According to the present invention, the shape of the packing sandwiched between the unit and the duct is devised by keeping the shape of the unit and the duct as they are (the curved surface having a radius of 3.5 mm or more is not formed on the unit or the duct). This is to eliminate such inconvenience.

b. Configuration of the Invention (Means for Solving the Problem) The packing of the air conditioner for automobiles of the present invention constitutes the air conditioner for automobiles, and is a component for circulating air for air conditioning, that is, a unit or a duct. The packing is sandwiched between the joints, and a surplus portion protruding from the outer periphery of the joints is provided at a portion which a human body can contact during assembly to an automobile.

The outer peripheral surface of the extra thickness portion is a curved surface having a radius of 3.5 mm or more, and when incorporated in a connecting portion between units or ducts constituting an automobile air conditioner, the outer peripheral portion of the connecting portion,
It is designed to form a curved surface with a radius of 3.5 mm or more.

(Operation) The packing of the automotive air conditioner of the present invention configured as described above is sandwiched between the flanges of the units or ducts to be joined to each other, and the airtightness between the flanges is achieved, like the conventional packing. It is used to hold the unit, but the excess part protrudes from the flange and is exposed at the part where the human body can come into contact, so that the human body can be prevented from coming into contact with this part and causing injury. E of the shape of
It can be adapted to the C standard.

(Embodiment) Next, the present invention will be described in more detail with reference to the illustrated embodiment.

FIG. 1 is a front view of an automobile air conditioner incorporating the packing of the present invention, FIG. 2 is a partially cutaway perspective view of the packing, and FIG. 3 is an enlarged view of part A of FIG.

An intake unit 1 that has a blower inside to take in air for air conditioning, and a heater duct 2 that sends air sent from the intake unit 1 toward the heater unit.
Are manufactured separately, but are abutted via the frame-shaped packing 5 of the coupling flanges 3 and 4 formed at the ends of the unit 1 and the duct 2, and the flanges 3 and 4 are joined together.
Are fixedly connected by screws or the like.

Since it is sandwiched between the flanges 3 and 4, one side edge of the packing 5 formed in a frame shape, which may come into contact with a human body during assembly to an automobile (usually a lower edge), has the unit 1 and When the duct 2 is connected, a surplus portion 7 protruding from the outer circumference of the flanges 3 and 4 is provided.

As shown in FIG. 2, the extra thickness portion 7 has a circular cross section, and the outer peripheral surface thereof is sandwiched between the flanges 3 and 4 as shown in FIG. , Radius is 3.5mm
The curved surface 8 is as described above.

In order to maintain airtightness between the flanges 3 and 4 of the unit 1 and the duct 2 to be joined to each other, the packing of the automobile air conditioner of the present invention configured as described above is provided between the flanges 3 and 4. When sandwiched, the extra thickness portion 7 having the curved outer surface 8 projects from the outer peripheral edges of the flanges 3 and 4.

Since the portion forming the extra thickness portion 7 is a portion which the human body can contact when the air conditioner is attached to the automobile, the human body comes into contact with the joint between the unit 1 and the duct 2 and may cause injury. There is no sharp part with radius less than 3.5mm.

Therefore, even if the shapes of the unit 1 and the duct 2 are left as they are, that is, the flanges 3, 4 of the unit 1 and the duct 2 are not changed.
The outer surface shape of the air conditioner can be adapted to the EC standard without forming the build-up portion 6 as shown by the chain line in FIG.

The shape of the extra thickness portion 7 formed on the outer peripheral edge of the packing 5 can be arbitrarily determined so as not to harm the human body as long as it has a curved surface with a radius of 3.5 mm or more. Three
Instead of the shape shown in the figure, a shape as shown in FIG. 4 can be adopted.

c. Effect of the Invention Since the packing of the air conditioner for automobiles of the present invention is configured and operates as described above, the outer surface shape of the air conditioner can be specified by the EC standard without changing the shape of the synthetic resin unit or duct. Therefore, it is possible to eliminate all the inconveniences that occur with changing the shape of the unit and duct, such as the cost of repairing the molding die can be omitted.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing an automobile air conditioner incorporating the packing of the present invention in a state in which only the packing is cut off;
The figure is a partial cutaway perspective view of the packing, and Fig. 3 is A of Fig. 1.
FIG. 4 is an enlarged view of the part, FIG. 4 is a view similar to FIG. 3 showing another example of the shape of the extra thickness portion formed in the packing, and FIG. 5 is a front view of an automobile air conditioner incorporating a conventional packing. 1: Intake unit, 2: Heater duct, 3, 4:
Flange, 5: Packing, 6: Overlay part, 7: Extra thickness part,
8: curved surface.

Claims (1)

[Scope of utility model registration request] 1. A packing which constitutes an air conditioner for an automobile and is sandwiched between joint parts of parts for circulating air for air conditioning therein, wherein a part which a human body can contact when assembled in an automobile Packing for an air conditioner for automobiles in which a surplus portion protruding from the outer periphery of the joint portion is provided, and the outer peripheral surface of the surplus portion is a curved surface with a radius of 3.5 mm or more.