JPH06219143A - Ventilator - Google Patents

Abstract

PURPOSE:To install a ventilator simply on a fellow panel without narrowing the opening width of vent ducts. CONSTITUTION:Plural vent ducts 24 are formed integrally on a synthetic resinous cover plate 23 so as to protrude inside of a vehicle body panel 21. An exhaust valve 27 is arranged in an air exhaust port 26 of the vent duct 24, and air on the indoor side A is introduced to the outdoor side B. A locking claw 30 locked on an inside surface of the vehicle body panel 21 is arranged protrusively on a side wall 24b of the vent duct 24. A U-shaped slit 31 is formed in the side wall 24b around the locking claw 30, and flexibility is given to the locking claw 30. The cover plate 23 is joined to the vehicle body panel 21 from the outdoor side B, and an intermediate part of the cover plate 23 is installed on the vehicle body panel 21 by the locking claw 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilator for ventilating the interior of a vehicle or a building, for example, and more particularly to improvement of a mounting structure for an opening of a mating panel.

[0002]

2. Description of the Related Art As shown in FIG. 9, a conventional automobile ventilator includes a synthetic resin cover plate 53 for covering an opening 52 of a vehicle body panel 51. Cover plate 5
3, a plurality of vent ducts 54 for guiding the air in the interior A of the automobile to the exterior B are integrally formed, and a rubber exhaust valve 56 is attached to an exhaust port 55 thereof. The cover plate 53 is attached to the vehicle body panel 51 with the four screws 57 on the upper, lower, left and right sides. Further, in the conventional ventilation device shown in FIG. 10, a latching claw 58 is projectingly provided on the cover plate 53 at the side of the vent duct 54, and the latching claw 58 is latched on the inner surface of the vehicle body panel during mounting. It is supposed to be done.

[0003]

However, according to the conventional example of FIG. 9, since the cover plate 53 is attached to the vehicle body panel 51 by the four screws 57, not only the man-hours required for attachment increase but also the vehicle body It was also necessary to machine a large number of screw holes 59 in the panel 51. Further, according to the conventional example of FIG. 10, since the latching claw 58 is provided so as to project to the side of the vent duct 54, there is a problem in that the opening width W of the vent duct 54 becomes narrow and ventilation efficiency decreases. It was

Therefore, an object of the present invention is to provide a ventilation device which can be easily attached to a mating panel without narrowing the opening width of the vent duct.

[0005]

In order to solve the above-mentioned problems, the ventilator of the present invention has a cover plate made of synthetic resin covering an opening of a mating panel, and a vent duct for guiding indoor air to the outside. It is integrally formed so as to project to the inside of the mating panel, and a side wall of the vent duct is provided with a latching claw that is latched to the inner surface of the mating panel and a slit that imparts flexibility to the latching claw. To be done.

Here, as the above-mentioned "hooking claw", one having a triangular cross section or a fan-shaped cross section can be exemplified. Examples of the "slit" include a U-shaped one around the latch claw or an L-shaped one. L
In the case of a character slit, in order to increase the flexibility of the hook,
It is advisable to form a longitudinal slit at another location on the side wall.

[0007]

In the ventilating apparatus of the present invention, when the cover plate is joined to the mating panel, the slits act to restore the latching claws to the inside of the vent duct and restore the latching to the inner surface of the mating panel. To be done. Therefore, screws are not required in this portion, and the number of screw tightening steps can be reduced, and the ventilation device can be attached to the mating panel with good workability. Further, since the hooking claw is provided on the side wall of the vent duct, there is no fear that the opening width of the vent duct becomes narrow.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is embodied in an automobile ventilation system will be described below with reference to FIGS. The ventilator of this embodiment includes a cover plate 23 made of synthetic resin that covers the opening 22 of the vehicle body panel 21, and two inner and outer reinforcing ribs 23a project from the entire circumference of the cover plate 23. Reinforcing rib 23
Inside the a, the cover plate 23 is integrally formed with four upper and lower vent ducts 24 so as to project to the inside of the vehicle body panel 21.

Each of the vent ducts 24 is formed in a pocket shape from a guide wall 24a which is curved and rises from the outdoor B side to the indoor A side, and a pair of side walls 24b which face each other, and has an intake port 25 on the indoor A side. An exhaust port 26 is provided on the outdoor B side. The exhaust port 26 is covered with an exhaust valve 27 made of rubber, and an upper edge portion of the exhaust valve 27 is attached to an outer surface of the cover plate 23 via a retainer 28.

The vent duct 24 has an exhaust valve 27.
By this action, the air in the room A is guided to the room B, and the air in the room B is not introduced into the room A. Further, the vent duct 24 also functions as a water return for returning the water that has entered when the exhaust valve 27 is opened to the outside B due to the shape of the guide wall 24a.

Side wall 2 of the vent duct 24 at the third stage from the top
A locking claw 30 having a triangular cross section that is locked to the inner surface of the vehicle body panel 21 is provided on the outer surface 4b so as to project outward. In addition, a U-shaped slit 31 that gives flexibility to the hooks 30 is formed on the side wall 24b around the hooks 30. The middle portion of the cover plate 23 is attached to the vehicle body panel 21 by the hooks 30, and the upper and lower ends of the cover plate 23 are fastened with screws 32.
It can be tightened to 1. 2 and 3, reference numeral 33 is a packing interposed between the vehicle body panel 21 and the cover plate 23.

When the ventilator constructed as described above is attached to the vehicle body panel 21, the cover plate 23 is joined to the vehicle body panel 21 from the outside B side to form the vent duct 2
4 into the opening 22. Then, the latch claw 30 engages with the peripheral edge of the opening 22 and bends to the inside of the vent duct 24 by the action of the slit 31. Then, the latch claw 30 has the opening 2
Immediately after passing through 2, the latching claw 30 is restored to the outside of the vent duct 24 by the action of the slit 31, and the vehicle body panel 21
It is hooked on the inner surface of the. Therefore, in this state, if the upper and lower ends of the cover plate 23 are fastened with the screws 32, it is possible to firmly attach the upper, middle and lower parts of the ventilation device to the vehicle body panel 21, respectively.

As described above, according to the ventilator of the present embodiment, the screw in the middle portion of the cover plate 23 is unnecessary, and the total number of screw tightening steps can be reduced, so that the ventilator can be mounted on the vehicle body panel 21 easily. Can be installed well.
Further, since the latch claw 30 is provided on the side wall 24b,
It is possible to improve the ventilation efficiency by designing the opening width W of the vent duct 24 wide.

FIGS. 5 to 8 show another embodiment of the ventilation device for an automobile, in which the shape of the slit which gives flexibility to the hook is different from that of the above embodiment. In this embodiment, an L-shaped slit 35 and a vertically long slit 36 are provided on the side wall 24b of the vent duct 24. The L-shaped slit 35 is formed around the latch claw 30, and the vertically long slit 36 is cut downward from the upper surface of the side wall 24b at a position apart from the latch claw 30.
The other structure is the same as that of the above-mentioned embodiment, and the same reference numerals are given to the respective drawings and the description thereof is omitted.

In the vent duct 24 of this embodiment, when the locking claw 30 passes through the opening 22 of the vehicle body panel 21, as shown in FIG. Of the side wall 24b is deflected by the action of the slit 36 while the points b and c are fulcrums. Therefore, it is possible to easily attach the intermediate portion of the cover plate 23 to the vehicle body panel 21 by bending the latch claws 30 by an amount substantially equal to that of the above-described embodiment. In particular, in this embodiment, since the slit 35 is formed in an L shape, the holding force of the latching claw 30 with respect to the side wall 24b can be increased, and the latching claw 30 can be reliably prevented from being broken during mounting. There is also.

The present invention is not limited to the above-described embodiment. For example, the upper and lower ends of the cover plate may be attached to the vehicle body panel by the hooks, the vent duct may be formed in a tubular shape, or the hooks may be hooked. And appropriately changing the shape and configuration of each part without departing from the gist of the present invention, such as appropriately changing the shape of the slit or embodying it as a ventilation device for trains or buildings. Is also possible.

[0017]

As described in detail above, according to the ventilator of the present invention, since the hooks and the slits are provided on the side wall of the vent duct, the ventilator can be installed without narrowing the opening width of the vent duct. It has an excellent effect that it can be easily attached to the mating panel.

[Brief description of drawings]

FIG. 1 is a front view of a vehicle ventilation device showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a partial perspective view of the ventilation device of FIG. 1 viewed from the back side.

FIG. 5 is a cross-sectional view of an automobile ventilation device showing another embodiment of the present invention.

6 is a sectional view taken along line VI-VI of FIG.

FIG. 7 is a side view showing a main part of the ventilation device of FIG.

FIG. 8 is a partial perspective view of the ventilation device of FIG. 5 viewed from the back side.

FIG. 9 is a perspective view showing a conventional automobile ventilation device.

FIG. 10 is a partial perspective view showing another conventional vehicle ventilation device.

[Explanation of symbols]

21 Body Panel 22 Opening 23 Cover Plate 24 Vent Duct 24b Side Wall 25 Intake Port 26 Exhaust Port 27 Exhaust Valve 30 Locking Claw 31, 35, 36 Slit A Indoor B Outdoor

Claims (1)

[Claims] 1. In a ventilator attached to an opening of a mating panel, a synthetic resin cover plate covering the opening of the mating panel is provided with a vent duct for guiding indoor air to the outside of the mating panel. Integrally formed with
A ventilator for a vehicle, characterized in that a side wall of the vent duct is provided with a latching claw that is latched to the inner surface of the mating panel and a slit that imparts flexibility to the latching claw.