JPS623287Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an automobile ventilation system, and relates to an air duct guide disposed inside a key portion of a side wall of an inner door panel of an automobile door body.

The air duct guide in this invention is installed from the inside of the door into an opening with several ventilation slit holes in the side wall of the inner panel of the car door. This system uses the difference in air pressure between the inside and outside of the car to automatically drain the air inside the car to the outside of the car.

In conventional automobile air ducts, wind noise from outside the vehicle enters the cabin through the air outflow path.
The drawback was that it produced noise inside the vehicle. In addition, since the air duct of a car installed inside the door body is mainly designed for waterproof and dustproof purposes, the lower end of the vertical part of the door sash where the door glass periphery fits is secured in the correct position, and the air duct of the car is installed inside the door body. To prevent the glass from shaking laterally, separate door sill support frames were installed, each with its own function.

Furthermore, the shape of the air duct is set so that it does not come into contact with the door sash support frame within the door body, so the cross-sectional area for air ventilation has to be small.

This invention was made in order to eliminate the above-mentioned conventional drawbacks, and it reduces the intrusion of noise from outside the vehicle through the conventional opening. The purpose of the present invention is to provide a ventilation system with an air duct guide that expands the cross-sectional area of air ventilation by adding a support frame holding function, and also makes it possible to eliminate the separate door sash support frame. do.

The feature of this invention is that in an automobile door provided with a door sash into which the periphery of the door glass fits, the hanging end of the door sash is located inside the door, and the hanging end of the door sash is located near the extended position. , several ventilation slit holes are drilled at the corner ends of the side wall of the door inner panel of the door body, and an air duct guide is placed inside, and the air duct guide has a slanted slope that bulges toward the inside of the door. Surrounded by walls on both sides, the door body has a mounting flange around the air outlet to the door inner panel, and the swollen sloped end includes a hollow cross-section and features a downwardly directed air inlet. This is a new component for an automobile ventilation system in which the guide groove into which the door sash is inserted is integrally molded from synthetic resin with the guide groove facing upward and downward.

An embodiment of this invention will be described below based on the drawings. FIG. 1 is a cutaway diagram of the main parts of a cab-over type automobile door, in which 1 is the door body, 2 is the door sash, 3 is the door glass, 4 is the door lock built into the center of the rear side of the door body 1, and 9 is the door lock. It's a door hinge. In FIG. 1, a dash-dotted line indicates the outline of a cab-over type automobile.

Furthermore, a door lock 4 is installed on the opposite side of the door hinge 9.
A rectangular door glass 3 is attached to the door body 1 which has a built-in
A door sash 2 into which the periphery of the door is fitted is provided. Here, the hanging end of the door sash 2 disposed on the installation side of the door lock 4 is located inside the door lock 4, and the air duct guide 6 of this invention is positioned at the extended position of the dangling end of the door lock 4. The door is fastened from the inside into a fastening hole 11 formed in a corner end of the side wall of the door inner panel of the main body 1.

The second is a perspective view of the door body 1 equipped with the air duct guide 6 of this invention, in which several ventilation slit holes 12, 12 are provided at the corner end of the side wall below the door lock 4 of the door inner panel. ... are drilled in parallel. Short locking holes 12' are formed in series with these slit holes 12.

Next, the air duct guide 6 in this invention
This will be explained based on FIGS. 3 to 5.

This air duct guide 6 is a blow molded product made of synthetic resin material such as polypropylene, and has a slanted slope 62 extending toward the inner door.
and both side walls 63 and 64, and has a mounting flange 61 that matches the inner surface of the corner position of the side wall of the door inner panel of the door body 1, forming a rectangular air outlet. Next, as shown in FIG. 5, each section is hollow and has an air inlet 66 directed downward, and is bridged between the left and right mounting flanges 61, 61 at the lowest end. ,
In the middle, a holding piece 67 is provided with a step corresponding to the thickness of the door inner panel so as to protrude downward. moreover,
A fastening hole 68 for the air duct guide 6 is bored in the protruding flange at the upper center end of the mounting flange 61 . When the air duct guide 6 is attached to the inner wall at the corner end of the side wall of the door inner panel of the door body 1, the air inlet 66 is formed at the extended position of the hanging end of the door sash 2. At the tip of the bulging slope 61, there is a T-shaped guide groove 65 into which the lower end of the door sash 2 is fitted.
It is integrally molded. Note that 7 in the figure is a door trim having a sliding ventilation opening/closing device 71 approximately in the center. A sealing material 72 is attached to the entire circumference of the door inner panel, and the door trim 7 and the sealing material 72 provide a sound insulation effect during normal operation.

Here, the procedure for attaching the air duct guide 6 to the door body 1 is to bring the part into the door inner panel through the service hole as shown in FIG.
A portion of the clamping piece 67 of the component is exposed to the outside through the locking hole 12'. Moreover, the locking hole 68 and the fastening hole 11 are made to match and are fastened together. Further, the hanging end of the door sash 2 is fitted into the T-shaped guide groove 65 at the tip of the bulging slope 61 of the air duct guide 6 and stopped there.

The effect of using the air duct guide of the ventilation system of this invention is that there is no need for separate parts such as a support frame for the lower end of the door sash, which is required with conventional products, and the lower end of the vertical part of the door sash is well secured in the correct position. Moreover, it also fulfills the role of an air duct.

Due to the large mounting flange surface between the door inner panel and the air duct guide, and the reliability of the fastening means, it is necessary to use the door structure and door glass shown in the figure in order to prevent the door glass from swinging sideways, to prevent chattering noise, and to insulate the door glass. With the help of a run, etc., a remarkable effect can be produced.

Furthermore, it is possible to make the area of the downward air inlet in the air duct guide larger in this invention, and when implementing this invention, the selection and shape of the mounting part, as well as the outside The size of the bulge and the shape of the guide groove of the door sash etc. can be changed arbitrarily.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention, and Figure 1 is a cutaway view of the main parts of an automobile door. Figure 2 is a perspective view of the door body equipped with the air duct guide of this invention, Figure 3 is an overall perspective view of the air duct guide,
FIG. 4 is an overall perspective view of the mounting side of the same component, and FIG. 5 is a sectional view taken along the line of arrow V-V in FIG. 1. 1...Door body, 2...Door sash, 3...
Door glass, 4...Door lock, 5...Door glass run, 6...Air duct guide, 61...Mounting flange, 62...Bulging slope, 63, 64...Side wall, 65...Guiding groove, 66... ...Air inlet, 67
...Pinch piece.

Claims (1)

[Scope of utility model registration request] In an automobile door equipped with a door sash into which the periphery of the door glass fits, several ventilation holes are drilled at key points in the side wall of the door inner panel of the door body, midway through the hanging end of the door sash, or near the extended position. At the same time, the air duct guide is surrounded by a bulging slope toward the door interior and both side walls, has a mounting flange to the door inner panel, has a hollow cross section, and has an air duct guide facing downward. A ventilation system for an automobile, characterized in that a guide groove into which a door sash or the like is inserted is integrally formed at the end of the bulging slope including a part of the inlet.