JPH0840216A - Blowout pipe structure for side defroster - Google Patents

Abstract

PURPOSE:To provide the blowout pipe structure of a side.defroster which prevents the diffusion of the blow-out air of the side defroster and improves the rigidity of the blowout pipe. CONSTITUTION:A guide rib 11 is installed in the direction crossing nearly at right angle with a blade 8 on the upstream side of the wind direction blade 8 of the blow-out pipe 5 of a side defroster 3, and the length of the guide rib 11 is extended up to the inlet end part 7a of the blow-out pipe 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an outlet pipe of a side defroster for an automobile.

[0002]

2. Description of the Related Art Conventionally, side defrosters are often used in automobiles in order to prevent fogging and frost on the side window glass. The air outlet of this side defroster is opened at both ends of the instrument panel, and a wind direction grill is arranged so that the air for the defroster is blown to each side window glass on the driver side and the passenger side. There is. Japanese Patent Laid-Open No. 58-58
It is disclosed in, for example, the publication of -185311.

[0003]

However, in the conventional structure of the air outlet of the side defroster for automobiles, the grill provided at the air outlet adjusts the wind direction only by the blades extending in the lateral direction. Since the structure is such that the blown air is diffused in the lateral direction along the blade, there is a problem that the blown air cannot be blown out to the position of the side window glass which is desired to be blown in a concentrated manner. Especially, since the air outlet of the side defroster is usually installed at the end of the instrument panel near the side window glass side, the location of the outlet pipe connected to the outlet is narrow and the side defroster hose is small. Since the hose is curved with a radius, the flow velocity of the air greatly differs between the outer peripheral part and the inner peripheral part of the curve of the hose, and the above-mentioned diffusion becomes large, so that there is a problem that the hose cannot be concentrated at the target position. In addition, at the insertion part of the blowout pipe and the side defroster hose connected to this, the rigidity of the blowout pipe is small, and since the installation space is narrow as mentioned above, a sufficient allowance for insertion of this hose into the blowout pipe can be secured. However, there is also a problem in that blow-out air leaks due to the hose coming off or deformation of the hose. The present invention is intended to solve such conventional problems.

[0004]

According to the present invention, in a side defroster in which a wind direction blade is installed at an end portion of a blowout pipe, the blade is substantially orthogonal to the blade in the flow passage of the blowout pipe upstream of the blade. A guide rib is provided in the direction, and the length of the guide rib is extended to the inlet end of the blow-out pipe.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a schematic perspective view showing a front portion of a vehicle compartment using an embodiment of the present invention, FIG. 2 is a schematic perspective view of a side defroster in an instrument panel, FIG. 3 is a perspective view of an outlet pipe, and FIG. It is an expanded sectional view which follows the AA line in 1.
In the figure, reference numeral 1 is an instrument panel, 2 is a defroster duct, 3 is a side defroster, 4 is a side defroster hose, 5 is an outlet pipe, and 6 is a side window glass. A defroster duct 2 through which air for a defroster is circulated in a substantially central portion of the instrument panel 1.
The side defrosters 3 connected to the left and right sides are arranged inside the instrument panel 1 in the vehicle width direction, and the tip of the side defroster 3 forms an outlet. The side defroster 3 is composed of a side defroster hose 4 extending from the defroster duct 2 to both ends of the instrument panel 1 and a blow-out pipe 5 which is inserted into the tip of the side defroster hose 4 to form an outlet.

The blow-out pipe 5 is made of synthetic resin, and a wind-direction blade 8 is formed at the tip of the blow-out pipe 5 on the blow-out side, and a flange 9 is formed integrally with the blow-out pipe 5 around this tip. Similarly, it is locked to the upper surface 1a of the instrument panel 1 by a locking portion 10 which is also integrally formed at the base of the flange 9. A guide rib 11 is also integrally formed with the blow-out pipe 5 in the flow path of the blow-out pipe 5, and the guide rib 11 blows out from the upstream end face of the blade 8 in a direction substantially orthogonal to the blade 8. It is formed so as to extend over the pipe diameter up to the inlet end portion 7 of the pipe 5.

With the above-mentioned structure, the guide ribs 11 prevent the air blown out from the blow-out pipe 5 from laterally diffusing along the blades 8 and direct it toward a predetermined position on the side window glass 6. You can concentrate and spray. Further, since the guide ribs 11 are provided so as to extend over the pipe diameter of the blow-out pipe 5, the rigidity of the blow-out pipe 5 is improved, and the effect of preventing the insertion and fitting portion of the side defroster hose 4 from being deformed or coming off can be obtained. can get.

[0008]

As described above, according to the present invention,
Since the guide rib is provided in the flow passage from the upstream end surface of the wind direction blade of the blow-out pipe to the inlet end, even if the side defroster hose is sharply curved from the insertion portion with the blow-out pipe, this guide rib is used. Air is prevented from diffusing along the lateral direction of the blade by the rectifying action, and the air for the defroster can be blown to the target position of the side window glass, and the occurrence of fogging or frost adhesion on the side window glass can be efficiently generated. Can be prevented. Also, since the guide ribs are provided so as to be passed over the diameter of the blow-out pipe, the rigidity of the blow-out pipe is improved, and the insertion and fitting part of the side defroster hose can be prevented from being deformed or coming off, and air leakage from this part can be prevented. The effect of preventing is obtained. As a side effect,
Since the guide ribs are provided orthogonally to the blade, it is possible to eliminate the risk that coins or the like will enter the interior through the gap between the blades. Further, since the guide rib is provided on the upstream side of the blade, there is an advantage that it is difficult to see from the outside and the appearance is not impaired.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a vehicle interior using an embodiment according to the present invention.

FIG. 2 is a schematic perspective view of a side defroster according to an embodiment of the present invention.

FIG. 3 is a perspective view of an outlet pipe according to an embodiment of the present invention.

FIG. 4 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 3 Side defroster 5 Blow-off pipe 7 Inlet end 8 Wind direction blade 11 Guide rib

Claims (1)

[Claims] 1. A side defroster in which a wind direction blade is installed at an end of an outlet pipe, and a guide rib is provided in a flow path of the outlet pipe upstream of the blade in a direction substantially orthogonal to the blade, and the guide rib is provided. Is extended to the inlet end of the blow-out pipe, and the blow-out pipe structure for the side defroster is characterized.