JPH0670511B2 - Ventilation - Google Patents

Description

TECHNICAL FIELD The present invention relates to a ventilation device provided on a door, a wall or the like.

[Conventional technology]

Conventionally, this type of ventilator includes an open / closed state maintaining mechanism that opens and closes a blade provided inside the ventilation opening by opening and closing it by abutting a flange protruding from the front edge or the rear edge of the ventilation opening.

[Problems to be Solved by the Invention]

The open / closed state maintaining mechanism has a structure in which the blades are moved to the closed position and the open position by pushing in the same direction. Therefore, there is a problem that the blade can be operated only from one side of the ventilation port.

Therefore, it is an object of the present invention to provide a ventilator that can be operated from both sides of the vent.

[Means for Solving the Problems]

In the ventilator of the present invention, flanges projecting inward are provided at the front edge and the rear edge of the ventilation port, and blades that overlap the flanges and close the ventilation port are provided so as to be movable substantially horizontally, and An open / closed state maintaining mechanism is provided on the inner side surface of the ventilation port, and the open / closed state maintaining mechanism is elastically urged from both sides so as to return to the central portion of the inner side surface and is movable by connecting the end portions of the blades. Part, an elastic locking part extending from the end of the movable part, and a shape in which the lower ends of the two substantially heart-shaped groove parts are connected by a central groove part so that the lower ends face each other. An engaging portion for guiding and holding the edge portion of the blade at the closed position overlapping the flanges via the movable portion is provided in a recessed position of the substantially heart-shaped groove portion, and the elastic engaging portion is In the middle part so that it moves only in the direction It is obtained and a guide groove having a stepped portion of the number.

[Action]

No matter which side of the ventilation opening the blade is pushed from, the elastic locking portion of the movable portion is guided and moved by the guide groove and is held by the locking portion. That is, when the blade is pushed from one direction, the elastic locking part that was located in the central groove part is guided to one of the substantially heart-shaped groove parts, and the stepped part prevents the backward return, and at the recessed position of the substantially heart-shaped groove part. It is held by a certain locking part. In this state, the blade comes into contact with the flange and the ventilation port is closed. When the vanes are pushed again from one direction, the stepwise portion also prevents the backward movement and is guided to the remaining portion of the one substantially heart-shaped groove portion, and returns to the original central groove portion to open the ventilation opening. When the blade is pushed from the other side, the elastic locking portion is guided to the other substantially heart-shaped groove portion, and the same operation as described above is performed.

〔Example〕

A ventilation device according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5. Reference numeral 1 denotes a ventilation port provided in a door or the like, and flanges 2a and 2b protruding inward are provided at a front edge and a rear edge. Reference numeral 3 is a blade arranged in the ventilation port 1 and is provided so as to be able to move substantially horizontally so that its edge portion abuts the flanges 2a and 2b. That is, the open / close state mechanism 4 for maintaining the open / closed state of the blades 3 is provided on both inner side surfaces of the ventilation port 1. As shown in FIG. 1, the open / close state maintaining mechanism 4 has a movable portion 6 which is elastically urged from both sides by elastic members 5 so as to return to the central portion on the inner side surface. The ends of the blades 3 are connected. Specifically, as shown in FIG. 2, the movable portion 6 is connected to the central portion of the cross section of the blade 3. Further, an elastic locking portion 7 is provided at the lower end of the movable portion 6, and the guide groove 8
Will be guided to. As shown in FIGS. 3 and 4, the guide groove 8 has two substantially heart-shaped groove portions 8m and 8n composed of a plurality of groove portions 8b to 8i so that the lower end faces the central groove portion 8a.
And the lower end is connected. Also, the groove 8b and the groove
8c, groove 8c and groove 8d, groove 8d and groove 8e, groove 8e and groove 8
a, groove 8f and groove 8g, groove 8g groove 8h, groove 8h and groove 8i,
At the boundary between the groove portion 8i and the groove portion 8a, the step portions 11 to 18 in which the latter groove portions are lowered are provided. Also, a substantially heart-shaped groove 8
Recessed positions of m and 8n, that is, between the grooves 8c and 8d and the groove
The bent portions between 8g and 8h become the locking portions 9 and 10, respectively. When the elastic locking portion 7 is located at the locking portions 9 and 10, the movable portion 6 moves toward the front edge and the rear edge of the ventilation opening 1, and the blade 3 abuts on the flanges 2a and 2b, respectively. In addition, the elastic locking portion 7 has the steps 11 to
It moves in the direction indicated by the arrow by 18 and does not move in the opposite direction. Further, the groove portion 8b has a taper shape that becomes shallower toward the groove portion 8c, and the groove portion 8f has a taper shape that becomes shallower toward the groove portion 8g.
The groove 8i and the groove 8i are tapered so as to become shallower toward the groove 8a.

Next, the operation of this ventilation device will be described. When the elastic locking portion 7 is in the groove portion 8a, the blade 3 is located at the center of the inner side surface (Fig. 2) and the ventilation port 1 is opened. From this state, when the blade 3 is pushed from the front side indicated by the arrow A, the elastic locking portion 7 comes into contact with the step portion 14 and cannot move in the direction of the groove portion 8e, so that the elastic locking portion 7 is one substantially heart-shaped groove portion. 8m groove 8a way groove
At this time, in order to move the elastic locking portion 7 to the one end 19 of the groove 8c through the groove 8c, the blade 3 is moved from the state where the edge of the blade 3 is in contact with the rear flange 2b. Further, the movable portion 6 alone is moved slightly outward from the contact surface of the flange 2b while elastically deforming the central portion of the pressing blade 3. Feather 3
When the hand is released, the movable portion 6 is returned by the restoring force of the elastic material 5, and the elastic locking portion 7 comes into contact with the step portion 11 and cannot return in the direction of the groove portion 8b, so that the locking portion 9 passes through the groove portion 8c. Hit
In this state, the ventilation port 1 is closed by the edge of the blade 3 hitting the rear flange 2b. When pushed again from the arrow A side, the elastic locking portion 7 comes into contact with the step portion 12 and cannot return in the direction of the groove portion 8c, so that it moves from the groove portion 8d to the one end 20 of the groove portion 8e. The operation of moving the elastic locking portion 7 to the one end 20 of the groove portion 8e is similar to the operation of moving the elastic locking portion 7 to the one end 19 of the groove portion 8c. When the hand is released from the blade 3, the elastic locking portion 7 comes into contact with the step portion 13 due to the restoring force of the elastic member 5 and cannot return to the groove portion 8d, so that the elastic locking portion 7 returns to the groove portion 8a through the groove portion 8e and returns to the ventilation port 1 Opens. When the blade 3 is pushed from the rear side indicated by the arrow B, the same operation is performed in the opposite direction. That is, when the elastic locking portion 7 moves to the one end 21 of the groove portion 8g through the groove portion 8f of the other substantially heart-shaped groove portion 8n and releases the hand from the blade 3, the elastic locking portion 7 similarly elastically locks by the restoring force of the elastic material 5. The portion 7 hits the locking portion 10. In this state, the edge of the blade 3 hits the front flange 2a to close the ventilation port 1. Then, when the elastic locking portion 7 is pushed again from the arrow B side, the elastic locking portion 7 moves from the groove portion 8h to the one end 22 of the groove portion 8i, and when the hand is released from the blade 3, the elastic locking portion 7 is similarly restored by the restoring force of the elastic material 5. Returns to the groove 8a through the groove 8i. In addition, as in the case where the elastic locking portion 7 is pushed in the A direction,
As described above, the elastic locking portion 7 moves in the direction of the arrow in FIG. 4 and does not return.

The ventilator is not limited to doors and can be applied to walls and the like.

〔The invention's effect〕

According to the ventilation device of the present invention, since the guide groove for guiding the elastic locking portion has a shape in which two substantially heart-shaped groove portions are connected by the central groove portion, the elastic locking portion is connected via the movable portion. It can be operated from both sides of the ventilation port, which opens and closes the ventilation port. Then, by pressing the blade to lock the elastic locking portion to the locking portion of the guide groove, the blade is closed, and by positioning the elastic locking portion in the central groove portion, the blade is opened. Therefore, the opening / closing operation of the ventilation port can be easily performed, and the usability is improved.

[Brief description of drawings]

FIG. 1 is a front view showing an open / closed state maintaining mechanism of a ventilating apparatus according to an embodiment of the present invention, FIG. 2 is a sectional side view of a ventilating apparatus according to an embodiment of the present invention, and FIG. FIG. 4 is an enlarged perspective view of the guide groove, FIG. 4 is an operation explanatory diagram, and FIG. 1 ... Ventilation port, 2a, 2b ... Flange, 3 ... Blade, 4 ... Open / closed state maintaining mechanism, 6 ... Movable part, 7 ... Elastic locking part, 8 ... Guide groove, 9,10 ... Locking part

Claims (1)

[Claims] A flange (2a), (2b) protruding inward is provided at each of a front edge and a rear edge of the ventilation opening (1), and the edges of these flanges (2a), (2b) are overlapped with each other. A blade (3) for closing the ventilation port (1) is provided so as to be movable substantially horizontally,
In addition, an opening / closing state maintaining mechanism (4) is provided on the inner side surface of the ventilation port (1), and the opening / closing state maintaining mechanism (4) is elastically urged from both sides so as to return to the central portion of the inner side surface. A movable part (6) connecting the ends of the blades (3),
Elastic locking portion (7) extending from the end of the movable portion (6)
And two substantially heart-shaped groove portions (8m) and (8n) are connected to each other at the lower end by a central groove portion (8a) so that the lower ends face each other, and guide the elastic locking portion (7) and The locking portions (9) and (10) for holding the edge portion of the blade (3) at the closed position overlapping the flanges (2a) and (2b) through the movable portion (6) are substantially heart-shaped. Groove (8m), (8n)
A plurality of stepped portions (11) provided in the middle of the elastic locking portion (7) so that the elastic locking portion (7) moves only in one direction.
A ventilation device provided with a guide groove (8) provided with.