JP4207326B2 - Resin molded products for vehicles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a resin molded product for a vehicle such as an air conditioning unit that is installed in an instrument panel in the front part of a passenger compartment and on-vehicle equipment is arranged on the rear side.
[0002]
[Prior art]
Generally, in-vehicle devices such as a car radio, a car audio, and a car navigation are installed on the rear side of the air conditioning unit installed in the instrument panel in the front part of the passenger compartment.
For this reason, at the time of a vehicle collision, there exists a malfunction that vehicle equipment and air-conditioning unit itself protrude into a vehicle interior, and are dangerous.
In order to solve this problem, in the resin molded product for a vehicle described in Japanese Patent Laid-Open No. 10-58951, a plurality of thin portions centering on a collision point that receives an impact at the time of a vehicle collision are formed in a concentric arc shape.
[0003]
[Problems to be solved by the invention]
In the above-mentioned resin molded product for vehicles, a plurality of thin portions can be formed along the stress concentration portion at the time of collision, and the resin molded product is easily destroyed at the portions of the plurality of thin portions. There is an effect of contributing.
[0004]
However, in the case of an air conditioning unit of an independent left and right air conditioner with an intermediate partition plate, the intermediate partition plate contributes to the strength improvement of the unit, so the air conditioning unit does not collapse at the time of a vehicle collision, and the in-vehicle equipment and the air conditioning unit itself protrude into the vehicle interior. There is a risk of doing.
In addition, when the plate-shaped rib for controlling the direction of airflow or the like is formed on the intermediate partition plate so as to be substantially orthogonal to the plate surface, the air conditioning unit is more difficult to be crushed.
[0005]
An object of the present invention is a resin molded product for a hollow vehicle in which an interior is partitioned by a partition plate in the front-rear direction of a vehicle and installed in an instrument panel in a front part of a passenger compartment, and an in-vehicle device is arranged on the rear side. An object of the present invention is to provide a vehicle resin molded product that can easily be crushed in the event of a vehicle collision and that can ensure safety in the passenger compartment.
[0006]
[Means for Solving the Problems]
[About claim 1]
The vehicle resin molded product is a hollow vehicle resin molded product in which the interior is partitioned in the front-rear direction of the vehicle by a partition plate and installed in the instrument panel at the front of the vehicle compartment, and the in-vehicle device is arranged on the rear side. In which a groove is formed on one or both of one side and the other side of the partition plate, and either one or both of the one side and the other side of the partition plate is plate-shaped so as to be substantially orthogonal to the plate surface Ribs are formed, and the connecting portions of the partition plates connected by the ribs are thinned .
[0007]
At the time of a vehicle collision, a force is applied to move the vehicle resin molded product in the direction of the vehicle interior. Since the effect of improving the strength of the unit by the partition plate is eliminated, the resin molded product for the vehicle is easily crushed.
Therefore, the in-vehicle device or the vehicle resin molded product itself does not protrude into the vehicle interior, and safety in the vehicle interior can be ensured.
[0008]
To someone one or both of one surface and the other surface of specifications Setsuban, when the plate-shaped ribs so as to plate surfaces substantially perpendicular are formed, since the ribs are not easily broken partition plate vehicle The air conditioning unit is not easily crushed during a collision. However, since the connecting portion of the partition plate to which the rib is connected is thinned, the rib easily peels off from the partition plate when the rear side (vehicle interior side) of the vehicle resin molded product collides with the in-vehicle device at the time of the vehicle collision. . Therefore, the air conditioning unit is easily crushed at the time of a vehicle collision, and the in-vehicle device and the resin molded product for the vehicle itself do not protrude into the vehicle interior, thereby ensuring safety in the vehicle interior.
[0009]
[About claim 2 ]
If the rib tip located in the rear surface direction of the resin molded product for vehicles is tapered, the force that the rear surface side of the vehicle resin molded product collides with the in-vehicle device is concentrated at the rib tip during a vehicle collision. , rib when the rear side of the vehicle for a resin molded article is crashed into the vehicle-mounted device you more easily peeled from the partition plate.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS.
As shown in the figure, the air conditioning unit 1 of the left and right independent air conditioners is divided into two parts by an intermediate partition plate 2 and is assembled in an instrument panel (not shown) at the front of the passenger compartment to provide a car radio (not shown). Is disposed on the rear surface 11 side.
[0011]
The air-conditioning unit 1 which is a resin molded product has various doors, door link mechanisms, a refrigerant evaporator, a heater core, and the like arranged in a hollow interior.
The intermediate partition plate 2 is for dividing the air conditioning unit 1 (see FIGS. 1 and 2).
[0012]
In this embodiment, the intermediate partition plate 2 is bent on one surface 21 of the intermediate partition plate 2 so that the intermediate partition plate 2 bends when receiving the breaking force (arrows in FIGS. 3 and 4). b) reference} grooves 211 to 214 (d = 0.5 mm to 0.8 mm) are formed. Of the four, the three grooves 211 to 213 are formed in parallel at a predetermined interval (about 2 cm) so as to face the direction of the car radio. The remaining groove 214 is formed to intersect the third groove 213 and to be orthogonal to the axis of the intermediate partition plate 2.
In addition, a groove 221 having a substantially V-shaped cross section {see (a, b) in FIG. 3} at a position close to the rear surface 11 of the other surface 22 of the intermediate partition plate 2 so as to be orthogonal to the axis of the intermediate partition plate 2 d = 0.5 mm to 0.8 mm).
[0013]
Plate-like ribs 23 and 24 for controlling the air flow direction and the like are integrally formed on one surface 21 and the other surface 22 of the intermediate partition plate 2 in a direction perpendicular to the plate surface. And the connection part 20 of the intermediate partition plate 2 to which the base parts 231 and 241 of the rib 23 and the rib 24 are connected so that the rib 23 and the rib 24 easily fall off when receiving the breaking force (arrows in FIGS. 3 and 4). Is thinned {see FIG. 4B}.
Further, the rib tips 230 and 240 of the ribs 23 and 24 located in the direction of the rear surface 11 of the air conditioning unit 1 are tapered so that the breaking force (arrows in FIGS. 3 and 4) is concentrated on the tapered portion {FIG. 4 (a, c)}.
[0014]
Next, the principle that the air conditioning unit 1 is easily crushed at the time of a vehicle collision will be described.
When a force that moves the air conditioning unit 1 toward the vehicle interior is applied at the time of a vehicle collision, and the rear side 11 (vehicle interior side) of the air conditioning unit 1 collides with the car radio, the intermediate partition plate 2 has a destructive force (FIG. 3). 4 arrow) from the direction of the arrow.
[0015]
A configuration in which the connection portion 20 of the intermediate partition plate 2 is thinned {see FIG. 4 (b)}, and a rib tip portion 230, 240 is tapered {see (a, c) in FIG. 4}. When the structure is formed with grooves 211 to 214, 221 having substantially V-shaped cross sections {see (a, b) in FIG. 3} on one surface 21 and the other surface 22 of the intermediate partition plate 2, The rib 23 and the rib 24 easily fall off from the intermediate partition plate 2, and the intermediate partition plate 2 is bent at the positions of the grooves 211 to 214.
Thereby, since the effect | action of the strength improvement of the air conditioning unit 1 by the intermediate partition plate 2 does not function, the air conditioning unit 1 is crushed.
[0016]
The air conditioning unit 1 of the present embodiment is reliably crushed at the time of a vehicle collision, and the in-vehicle device such as a car radio and the air conditioning unit 1 itself do not protrude into the vehicle interior. For this reason, since a passenger | crew is not damaged by a protrusion, the safety | security in a vehicle interior can be ensured.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of an intermediate partition plate of an air conditioning unit of a left and right independent air conditioner according to an embodiment of the present invention, (a) is an explanatory diagram on one side, and (b) is an explanatory diagram viewed from the radio direction. It is.
FIG. 2 is an explanatory diagram on the other side of an intermediate partition plate of an air conditioning unit of a left and right independent air conditioner according to an embodiment of the present invention.
FIG. 3 is an explanatory view of a groove of an intermediate partition plate of an air conditioning unit of a left and right independent air conditioner according to one embodiment of the present invention, (a) is a perspective view of the intermediate partition plate viewed from one side, (b) FIG. 5 is a cross-sectional view taken along line XX ′ of a groove formed in the intermediate partition plate.
FIG. 4 is an explanatory view of a rib of an intermediate partition plate of an air conditioning unit of a left and right independent air conditioner according to an embodiment of the present invention, (a) is a perspective view of the intermediate partition plate viewed from one side, (b) Is a cross-sectional view taken along the line Y-Y ', and FIG.
FIG. 5 is an external view of the air conditioning unit as seen from inside the left and right independent air conditioners according to one embodiment of the present invention.
[Explanation of symbols]
1 Air conditioning unit (resin molded product for vehicles)
2 Intermediate partition plate (partition plate)
11 Rear surface 20 Connection portion 21 One surface 22 Other surface 23, 24 Rib 211, 212, 213, 214, 221 Groove 230, 240 Rib tip

Claims (2)

In the hollow resin-molded product in which the interior is partitioned in the front-rear direction of the vehicle by the partition plate, installed in the instrument panel in the front part of the vehicle compartment, and the in-vehicle device is arranged on the rear side,
Forming a groove in either one or both of one side and the other side of the partition plate;
A plate-like rib is formed on either one or both of the one side and the other side of the partition plate so as to be substantially orthogonal to the plate surface,
A resin molded product for a vehicle, wherein a connecting portion of the partition plate connected to the rib is thinned. Claim 1 vehicle resin molded article, wherein it has a tapered rib tip portion located in the plane direction after the vehicle for a resin molded product.

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