JPH0754756Y2 - Ventilator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a ventilator for a vehicle.

(Prior Art and Problems Thereof) FIG. 6 shows a conventional side ventilator, in which a side ventilator 1 includes a housing 2, an opening / closing door-like member 3, and the like. An air intake port 2a is opened on the front end face of the housing 2, and an air outlet port 2b is opened on the rear end face. Therefore, the inside of the housing 2 is an air passage through which traveling wind flows, as indicated by the arrow in the figure. The opening / closing door-shaped member 3 is arranged in the housing 2. Opening / closing door member 3
The base end 3a is pivotally supported by the housing 2 and connected to a lever (not shown). The tip of this lever extends into the passenger compartment.

In order to introduce outside air into the vehicle compartment by the side ventilator 1, the lever is operated to open the open / close door member 3. At this time, the tip 3b of the opening / closing door-like member 3 vigorously collides with the inner surface of the housing 2 to generate a tapping sound, and in order to prevent the opening / closing door-like member 3 and the like from being deformed, A cushioning member such as sponge 4 is attached. Therefore, there is a problem that the number of parts of the side ventilator 1 increases and the number of assembling steps increases, resulting in an increase in manufacturing cost.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a ventilator capable of reducing the manufacturing cost.

(Means for Solving the Problems) According to the present invention in order to achieve the above object, according to the present invention, a housing having an air flow port formed therein and an air passage inside thereof is rotatably supported in the housing. An opening / closing door-like member that opens and closes the air circulation port, and an inner surface of the housing that is formed in the vicinity of a rotation axis of the opening-and-closing door-like member when the rotation angle of the opening-and-closing door-shaped member reaches a predetermined angle. A configuration is provided in which a sliding contact plate is provided which is slidably contacted while being slightly recessed to reduce the rotational speed of the opening / closing door-shaped member.

(Operation) In order to introduce the outside air with the ventilator, the open / close door member is rotated to open the door. When the rotation angle of the opening / closing door-shaped member reaches a predetermined angle, the sliding contact plate formed on the opening / closing door-shaped member makes sliding contact while slightly recessing the inner surface of the housing. Therefore, the rotation speed of the open / close door member is reduced and limited. For this reason, the buffer member that is provided in the conventional ventilator and that suppresses the tapping sound between the opening / closing door member and the housing becomes unnecessary.

Embodiment An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

1 and 2 show an embodiment of a ventilator to which the present invention is applied. The ventilator 7 is arranged at a predetermined position on the front surface of the vehicle, for example, on the rear side of the headlight 5 (FIG. 3). ). The ventilator 7 includes a housing 8, a damper (opening / closing door-like member) 9, a lever 10, and the like.
The damper 9 is integrally formed with a rib (sliding plate) 11.

The housing 8 has a triangular box shape whose side view is convex rearward, an air intake port 8a is opened at the front end face, and an air outlet port 8b is opened at the rear half of the bottom face. The air outlet 8b is open toward the vehicle interior. Therefore, the inside of the housing 8 serves as an air passage through which traveling wind introduced from the outside of the vehicle body through the air intake port 8a flows. A packing 13 is fixed to the inner surface of the housing 8 around the air outlet 8b to shut off the running wind when the damper 9 is closed. A shaft hole (not shown) into which the shaft portion 9a of the damper 9 is rotatably fitted is inserted into the housing 8.
Has been drilled.

As shown in FIG. 4, the damper 9 is composed of a shaft portion 9a, a plate-shaped portion 9b, and a pair of ribs 11, which are integrally molded. As described above, the shutter portion 9a is rotatably fitted in the shaft hole of the housing 8. Further, a square hole 9d into which the base end of the lever 10 is fitted so as not to rotate relative to it is formed in the one end surface 9c of the shaft portion 9a. Lever 10
The tip of the damper 9 is extended into the passenger compartment, and the damper 9 is selectively operated between a position for opening the door (position indicated by a chain double-dashed line in FIG. 2) and a position for closing the door (position indicated by a solid line in FIG. 2). Further, a spring 14 is connected to the lever 10 and can be held at a position for opening the damper 9 and a position for closing the door, respectively.

The pair of ribs 11 extends from both ends of the upper surface of the shaft portion 9a and the plate-shaped portion 9b, and has a substantially fan shape in side view. Each of the ribs 11 has a peripheral edge shape that slightly interferes with the inner surface of the housing 8 when the damper 9 rotates. That is, the periphery of each rib 11 is
When the damper 9 is rotated by an angle θ1, it is rubbed against the inner surface of the housing 8 and is slid on the housing 8 as the damper 9 is rotated, so that the housing 8 is gradually pushed into the housing 8. . Further, when the rotation angle of the damper 9 reaches the angle θ2, each rib 11 serves as a stopper to limit the rotation of the damper 9 (FIG. 5).

The operation of each rib 11 will be described below with reference to FIG.

When the damper 10 is operated to open the damper 9 from the closed position shown by the broken line in the figure, the rib 11 does not contact the housing 8 until the rotation angle of the damper 9 reaches the angle θ1.

The rotation angle of the damper 9 is an angle θ
When the number reaches 1, the peripheral edge of the rib 11 comes into contact with the inner surface of the housing 8 so as to rub against it. Therefore, even if the rib 11 contacts the housing 8, a large hammering sound is not generated. Then, as the damper 9 rotates, the peripheral edge of the rib 11 slides on the inner surface of the housing 8, and the housing 8 and the like are slightly recessed and are gradually pushed in. Therefore, the damper 9 gradually reduces the rotational displacement speed.

Then, as indicated by the chain double-dashed line in the figure, when the rotation angle of the damper 9 reaches the angle θ2, each rib 11 serves as a stopper to limit the rotation of the damper 9. At this time, the damper 9
The rotational displacement speed is sufficiently reduced, and the damper 9
The rotational displacement of is restricted gently so that a loud tapping sound is not generated.

In this way, the rib 11 formed integrally with the damper 9 functions as a stopper that limits the rotational displacement of the damper 9, and also functions as a cushioning member that absorbs the shock when the damper 9 is opened. Therefore, the cushioning member such as the sponge 4, which is required in the conventional ventilator 1 shown in FIG. 6, becomes unnecessary.

(Effect of the Invention) As described above, according to the present invention, a housing having an air circulation port formed therein and an air passage inside the housing is rotatably supported in the housing to open and close the air circulation port. The opening / closing door-like member is formed in the vicinity of the rotation axis of the opening / closing door-like member, and when the turning angle of the opening / closing door-like member reaches a predetermined angle, the inner surface of the housing is slightly dented to make sliding contact with the opening / closing door-like member. Since it is provided with a sliding contact plate that attenuates the rotation speed of the door-shaped member,
There is an excellent effect that the manufacturing cost of the ventilator can be reduced.

[Brief description of drawings]

1 is a sectional view showing an embodiment of a ventilator to which the present invention is applied, FIG. 2 is a side view showing an embodiment of a ventilator to which the present invention is applied, and FIG. 3 is an arrangement of the ventilator according to the present invention. FIG. 4 is a front view of the vehicle showing the position, FIG. 4 is a perspective view showing an embodiment of a ventilator damper to which the present invention is applied,
FIG. 5 is an enlarged plan view showing a rotating state of a damper of a ventilator to which the present invention is applied, and FIG. 6 is a sectional view of a conventional ventilator. 7 ... Ventilator, 8 ... Housing, 9 ... Damper (opening / closing door-like member), 11 ... Rib (sliding contact plate).

Claims (1)

[Scope of utility model registration request] 1. A housing having an air circulation port formed therein and having an air passage therein, an opening / closing door member pivotally supported in the housing for opening / closing the air circulation port, and the opening / closing door shape. When the rotation angle of the opening / closing door-shaped member formed near the rotation axis of the member reaches a predetermined angle, the inner surface of the housing is slightly indented and slidably contacts to change the rotation speed of the opening / closing door-shaped member. A ventilator comprising a sliding contact plate for damping.