JPS6225364Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to an automobile ventilator, which is a check valve. for automobiles, in which a ventilation hole is formed in the vertical wall surface, and an on-off valve that closes the ventilation hole by its own weight is rotatably attached to the valve inner. Regarding ventilators.

[Conventional technology]

First, a conventional example will be explained with reference to FIG. In the figure, 1 is a valve inner;
is slightly inclined (approximately 12 degrees) with respect to the vertical direction, and its end is attached to the valve body 2. A plurality of on-off valves 3, 3, . . . are attached to the upper surface side of the valve inner 1. The on-off valves 3, 3, . . . have upper ends fixed to the valve inner 1 by retainers 4, and lower ends formed as free ends. Opening/closing valves 3, 3,... of valve inner 1
Ventilation holes 5, 5, ... are drilled in the area facing the
It is formed to allow airflow to flow out. Reference numeral 6 indicates a duct, and the lower end of the duct 6 is inserted into the valve body 2, and the upper end communicates with the interior of the vehicle (not shown).
Reference numeral 7 indicates a damper, and 8 indicates a quarter panel of the body, that is, an outer panel of the vehicle body, and the valve body 2 is fixed to the outer panel 8 by a grommet and a tap screw.

Next, the operation of the above conventional example will be explained. Air within the vehicle interior is guided into the valve body 2 through the duct 6. Then, the on-off valves 3, 3,... are opened and closed by air pressure.
will be opened and leaked to the outside. When the air pressure inside the valve body 2 decreases, the on-off valves 3, 3, . . . close due to their own weight, thereby preventing backflow.

[Problem that the invention attempts to solve]

However, since the valve inner 1 has a plurality of on-off valves 3, 3,..., it becomes vertically long, and the end of the valve inner 1 is attached near the duct 6 of the valve body 2 instead of near the outer plate 8 of the vehicle body. As a result, the overall installation space was large. The installation space can be reduced by reducing the number of on-off valves 3, 3, . . . , but this has the disadvantage of reducing ventilation capacity.

The present invention aims to solve the above-mentioned drawbacks, and aims to provide a ventilator for automobiles that can reduce the installation space and does not reduce the ventilation capacity.

[Means and actions for solving problems]

The present invention saves wasted space on the air outflow side of the valve inner by attaching the end of the valve inner near the outer panel of the vehicle body and bringing the straight line connecting the lower ends of the vertical wall surfaces close to the outer contour of the vehicle body formed by the outer panel. It's what I lost.

[Example of idea]

The present invention will be explained below with reference to the sectional view shown in FIG. The valve inner 9 is formed into a stepped shape. That is, a vertical wall surface 10 that is slightly inclined with respect to the vertical direction and a horizontal wall surface 11 that is significantly inclined with respect to the vertical direction are alternately arranged and formed in a step-like shape. A ventilation hole 5 is bored in the vertical wall surface 10, and an on-off valve 3 that closes the ventilation hole 5 by its own weight is rotatably attached to the air outlet side of the valve inner 9 by a retainer 4. .

The end of the valve inner 9 is attached to the valve body 2, and the attachment position is near the outer panel 8 of the vehicle body. This eliminates wasted space between the air outflow side of the valve inner 9 and the outer plate 8. Further, the vertical wall surface 10 is attached so that a straight line connecting each lower end thereof is close to the vehicle body outline line 12 formed by the outer panel 8. The rest of the structure is the same as that of the conventional example, so the same parts are given the same reference numerals and the explanation will be omitted. Further, the ventilation action and backflow prevention action of the ventilator according to the present invention are also similar to those of the conventional example, so a description thereof will be omitted.

[Effect of idea]

According to the present invention, the end of the step-shaped valve inner is attached near the outer panel of the vehicle body, and the straight line connecting the lower ends of the vertical wall surfaces is placed close to the outer contour of the vehicle formed by the outer panel. It is possible to eliminate wasted space between the outflow side and the outer panel of the vehicle body. Therefore, the overall installation space can be reduced, and the ventilation capacity is not reduced.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a conventional example, and FIG. 2 is a sectional view of an automobile ventilator according to the present invention. 3... Opening/closing valve, 5... Ventilation hole, 8... Outer panel of vehicle body, 9... Valve inner, 10... Vertical wall surface, 1
1... Side wall surface, 12... Vehicle body outline.

Claims (1)

[Scope of utility model registration request] The valve inner is formed into a staircase shape by alternately connecting vertical wall surfaces slightly inclined to the vertical direction and horizontal wall surfaces greatly inclined relative to the vertical direction, and a ventilation hole is bored in the vertical wall surface, and a ventilation hole is formed in the vertical wall surface. In an automobile ventilator in which an on-off valve that closes a hole by its own weight is rotatably attached to a valve inner, the end of the valve inner is attached near the outer panel of the vehicle body, and a straight line connecting each lower end of the vertical wall surface is connected to the outer panel. A ventilator for an automobile, characterized in that it is placed close to the outline of a car body made by.