JPH0113939Y2 - - Google Patents

Description

[Detailed explanation of the idea] This idea concerns a ventilation louver.

A door ventilation louver that has a rectangular opening formed in the lower part of the door body and is attached to the opening usually consists of two parts: a rectangular inner frame with ventilation holes and an outer frame that fits on the outside of the inner frame. A flange for concealing the opening edge of the door body is provided on each of the two frames.

By the way, conventionally, this type of louver has adopted a mounting method in which the flanges of the inner frame and outer frame are nailed or screwed to the door body. etc., it is necessary to attach a wooden frame to the inner periphery of the opening for attaching the louver. In addition, the heads of nails, screws, wood screws, etc. are exposed on the flange surfaces of the inner frame and outer frame, which makes them look unsightly, and since the heads are located outdoors, it is possible to remove the louver from outside. , there are safety issues.

Therefore, this invention solves the above problem, and has a square engagement frame in which the tip of the square outer frame, which also has a flange, can be fitted to the outside of the square inner frame, which has a flange for concealing the opening edge. and forming engagement teeth that can engage with the inner surface of the engagement frame and the outer surface of the outer frame,
To provide a ventilation louver that is easy to install and has excellent safety, in which the inner frame and the outer frame can be connected by engaging the engaging teeth with each other by fitting the outer frame to the outside of the inner frame. The purpose is to

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

As shown in the figure, the ventilation louver according to this invention is
It consists of a combination of a rectangular inner frame 1 and a rectangular outer frame 11, and the ends of each frame 1, 11 are provided with flanges 2, 12 that hide the edges of the opening for attaching the louver.
is provided.

A plurality of ventilation guide plates 4 are passed vertically at equal intervals between the opposing vertical bars 3, 3 of the inner frame 1, and ventilation holes 5 are provided between adjacent guide plates 4.

Note that the guide plate 4 may have any cross-sectional shape.

Further, a rectangular engagement frame 6 is formed on the outside of the inner frame 1, and a plurality of engagement teeth 7 are provided on the inner periphery of this engagement frame 6.

Further, a V-shaped bent leaf spring 9 is attached to the center of the outer surface of the upper and lower horizontal bars 8, 8 of the inner frame 1.
The tip of the inclined plate portion of the leaf spring 9 is in pressure contact with or in close proximity to the inner surface of the engagement frame 6.

The outer frame 11 is formed in a size that fits almost tightly inside the engagement frame 6, and its upper and lower horizontal bars 1
3, 13 and both vertical bars 14, 14 are elastic. An engagement frame 6 is provided on the outer periphery of the tip of this outer frame 11.
Engagement teeth 15 that can engage with the engagement teeth 7 are provided.

Further, a rectangular guide frame 16 is provided on the outside of the outer frame 11, and the outer diameter of the guide frame 16 is approximately equal to the outer diameter of the engagement frame 6.

The ventilation louver shown in the embodiment has the above structure, and in order to attach this ventilation louver to, for example, a door body, the guide frame 16 can be fitted into the door body 20, as shown in FIGS. 2 and 3. A square opening 21 is formed.

Now, when the inner frame 1 is fitted inside the opening 21 from one side of the opening 21 of the door body 20 and the outer frame 11 is fitted from the other side of the opening 21, the tip of the outer frame 11 is engaged. While fitting into the inside of the frame 6, the center portions of the upper and lower horizontal bars 13 of the outer frame 11 are pushed by the leaf springs 9, and the center portions of the horizontal bars 13 bend outward in an arc shape and come into contact with the inside of the engagement frame 6. do. The flanges 2 and 12 of the inner frame 1 and outer frame 11 are the door body 20
Inner frame 1 and outer frame 11 to the position where they abut against the surfaces of
When it is fitted, a part of the engaging teeth 15 formed on the upper and lower horizontal bars 13 of the outer frame 11 engages with the engaging teeth 7 of the engaging frame 6, and the engaging teeth 7, 15 engage with each other. Therefore, the inner frame 1 and the outer frame 11 are connected to each other, and the inner frame 1 and the outer frame 11 can be attached to the door body 20.

In the case of the embodiment, two engagement teeth 7 and 15 are provided on the inner circumference of the engagement frame 6 and the outer circumference of the outer frame 11, respectively.
However, the number of engaging teeth 7, 15 is arbitrary. When multiple engaging teeth are formed as shown,
The inner frame 1 and the outer frame 11 can be attached to a door body having an arbitrary thickness dimension.

Furthermore, the mounting position of the leaf spring 9 that presses a part of the outer frame 11 outward is not limited to the upper and lower horizontal bars 8 of the inner frame 1, and may be mounted, for example, at the center of the outer surface of the vertical bars 3 on both sides.

As described above, this invention is based on the idea that when the inner frame and the outer frame are fitted from both sides of a rectangular opening formed in the door body, etc., the tip of the outer frame engages with the inner frame provided on the outside of the inner frame. At the same time as it fits inside the mating frame, the center part of the upper and lower horizontal bars and the center part of both vertical bars of the outer frame, or both, are pushed outward by the leaf spring and the engaging teeth of the outer frame are pushed outward. Because a portion engages with the engagement teeth of the engagement frame, it is easy to attach to the door body, etc., and there is no need to attach a main frame etc. to the inner periphery of the opening of the door body, and the door uses a honeycomb core. It can also be easily attached to the main body.

In addition, the louver can be removed because no tightening screws such as wood screws are used, and the engagement of the engaging teeth prevents the inner frame and outer frame from moving apart. It is extremely safe.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the louver according to the invention, Fig. 2 is a vertical side view showing the same in the attached state, Fig. 3 is an enlarged sectional view showing the main parts of the above, and Fig. 4 is The figure is an exploded perspective view showing a portion of the inner frame and outer frame same as above. 1...Inner frame, 2...Flange, 3...Vertical frame, 5
...Ventilation hole, 6...Engagement frame, 7...Engagement tooth, 8...
...Horizontal bar, 11...Outer frame, 12...Flange, 15
...engaged teeth.

Claims (1)

[Scope of utility model registration request] In a ventilation louver in which a rectangular inner frame having a ventilation hole and a rectangular outer frame fitted on the outside of the inner frame are each provided with a flange for concealing the edge of the louver mounting opening, the outer frame is provided on the outside of the inner frame. A rectangular engagement frame that can be fitted on the outside of the frame is formed, engagement teeth that can be engaged with each other are formed on the inner surface of this engagement frame and the outer surface of the outer frame, and the upper and lower sides of the inner frame are formed. A ventilation louver characterized in that a leaf spring that presses the outer frame outward is attached to one or both of the central part of the crosspiece and the central part of both vertical crosspieces.