JPH0418366Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a vinyl curtain locking device for covering agricultural ventilation fans equipped with shutters in vinyl greenhouses and the like with vinyl.

``Conventional technology'' As is well known, greenhouse cultivation using forced ventilation using a ventilation fan is said to have various advantages, such as preventing high temperature damage, achieving uniform growth through appropriate temperature and humidity management, and increasing yield. In recent years, its benefits have been sought after due to its advantages such as an increase in air flow, an improvement in wind resistance due to positive negative pressure inside the house, and automation and simplification of workability. By the way, the following method has generally been used to attach a curtain to a ventilation fan equipped with a shutter in a greenhouse or the like. The first method is to install a locking member with a △-shaped end face (Toto Kogyo Co., Ltd., product name: Binipets is ideal; the same applies hereafter) on the pillar on which the ventilation fan is mounted, and then the curtain is brought into contact with this locking member.
Next, a locking tool made of a spring material is fitted into and attached to this locking member. The second method involves inserting the peripheral edge of the curtain into the joining surface of the fan frame and the shutter frame, and then using a fastener such as a bolt to integrate the two. The curtain is attached by sandwiching it between the joint surfaces of the body.

The bent portion provided on the frame of the shutter according to the second method is provided on the inward side (anti-radial direction) of the shutter (at the time of application as explained in the property submission form). Please refer to the applicant's catalog).

``Problems that the invention attempts to solve'' With the method of installing curtains as described above, it is difficult to attach a curtain that hides the shutter part to the shutter frame, and even if you try to attach it, the curtain is likely to be torn due to vinyl etc. However, there are many cases where the shutter gets caught in the frame member and breaks, and the ultimate disadvantage is that it is impossible to hide the shutter part, and since this is practically impossible, the following There were flaws.
When heating in the middle of winter without ventilation, conventional shutters (blades) are made of aluminum, so even if the shutters are blocked, there is considerable heat loss because the shutters have good heat conduction. Under the same conditions as mentioned above, even if the shutter is closed, there will be a gap of about 3 to 5 mm between the shutter frame and the shutter on both sides and the upper side, and heat will escape through that gap. Under the same conditions, for example during strong winds,
The external wind causes the shutter to flap, causing large heat loss and poor heating efficiency. Furthermore, with the above-mentioned structure, it takes time and effort to tension the curtains, and requires a certain degree of experience and attentiveness, which is extremely difficult.

In the shutter frame structure described above, that is, in the structure in which the bent portion is provided on the inner side, the width of the bent portion is narrow, and the existing locking member cannot be attached.

Further, in order to attach an existing locking member, for example, if the width of the bent portion is increased, it will be difficult to do so unless the standard dimensions of the entire agricultural ventilation fan are changed.

``Means for Solving the Problems'' The present invention is to cover the front side of the shutter frame with a curtain so as to hide the shutter part, and to almost completely hide both the house and the shutter part. Also, to easily install the curtain to the house and to maintain the length of the curtain in the stretched state. In particular, concealing the shutter part through the use of existing locking members and slight modifications of the conventional shutter frame. For this purpose, the following configuration was adopted.

That is, the present invention consists of a fan frame for an agricultural ventilation fan installed in a house, a shutter frame that protrudes from the fan frame and is provided with multiple shutters, and a shutter frame that protrudes in a radial direction from the tip edge of the shutter frame. and a locking member capable of locking a peripheral edge of the shutter portion of a curtain for a house wall or for concealing the shutter, provided on the front side of the bent portion. , a locking tool made of a spring material that is fitted into and removed from the locking member and can securely press and lock the peripheral edge of the shutter of the curtain near the shutter frame; In order to attach the curtain to the front side of the shutter frame, a locking member and a locking tool for locking the curtain are provided on the front side of a bent part located on the front side of the shutter frame. This is a curtain locking device for ventilation fans.

"Working" Next, to explain the working state of this invention, after installing the ventilation fan on the frame post of the ventilation fan in the house, the curtain A
In this case, a simple installation method is to stretch the curtain A so as to hide the shutter part 7a of the ventilation fan, and then attach the curtain A to the bent part 4a of the shutter frame 4. The locking tool 6 is inserted into the locking member 5. Thereby, the curtain A is attached by crimping the locking member 5 and the locking tool 6. In the case of mid-winter, the shutter section 7a is basically left in this state so that it is hidden by the curtain A. In addition, when opening and closing the shutter 7 in spring, autumn, etc., in order to remove the curtain A of the shutter section 7a, the curtain A is cut along the inner wall of the shutter frame 4.
This part will be opened. Another method is to provide a mounting hole for the ventilation fan in the curtain A in advance, and attach the ventilation fan by pressing the peripheral edge of the mounting hole with a locking member 5 and a locking tool 6, respectively. When the opened shutter section 7a is hidden with a curtain B, the locking tool 6 is removed from the locking member 5 on one of the four sides, and the edge of the curtain A on the locking member 5 is attached to the curtain B. When the locking tool 6 is inserted into the locking member 5 after placing one side of the peripheral edge of the locking member 5, the locking member 5 and the locking tool 6 are attached by crimping. By performing this operation sequentially, the curtain B is stretched over the shutter section 7a, and the curtain B is stretched over the shutter section 7a.
a and the shutter 7 are hidden.

"Embodiment" Next, an embodiment of the present invention will be described based on the drawings. 1 is a fan frame, and this fan frame 1 is equipped with a fan 2 and a fan motor 3;
The fan 2 is configured to be rotated by the drive of the motor 3. 4 is a shutter frame protruding from the fan frame 1, and in order to attach the peripheral edge of the curtain A and/or the peripheral edge of the curtain B to the front side of the shutter frame 4, a shutter frame 4 is provided on the front side of the shutter frame 4. ,
An end-type locking member 5 is provided around the bent portion 4a that protrudes in the radial direction. A substantially corrugated locking tool 6 made of a spring material is fitted into and removed from the locking member 5. 7 is a shutter provided in the shutter frame 4. A is a curtain made of vinyl or the like, and B is a curtain made of vinyl or the like cut in advance to hide the shutter portion 7a.

Next, to explain the working state of the present invention, after installing the ventilation fan on the ventilation fan frame post of the house, curtain A is stretched. When installing the upholstery, at the same time, remove the shutter section 7 of the ventilation fan.
a, and then attach the locking tool 6 to the locking member 5 provided on the bent portion 4a of the shutter frame 4.
Insert. As a result, the curtain A is attached to the locking member 5.
It is attached by crimping the and the locking tool 6. In the case of mid-winter, the shutter section 7a is generally left as is, and the shutter section 7a is hidden by the curtain A. When the shutter 7 is opened and closed in spring, autumn, etc., in order to remove the curtain A of the shutter portion 7a, this portion is opened by cutting the curtain A along the inner wall of the shutter frame 4. Another method is to provide a ventilation fan mounting hole in the curtain A in advance, abut one side of the peripheral edge of the mounting hole against the locking member 5, and then insert and insert the locking tool 6 into the locking member 5. Then, this side is attached to the shutter frame 4 by crimping the locking member 5 and the locking tool 6. The curtain A is attached to the shutter frame 4 by performing such operations on the other sides of the peripheral edge. In addition, when the opened shutter section 7a is hidden with a curtain B, the locking member 5 provided on the shutter frame 4
After removing the locking tool 6 and placing one side of the peripheral edge of the curtain B on the edge of the curtain A on the locking member 5, the locking tool 6 is inserted into the locking member 5. One side of the curtain B is attached by crimping the locking member 5 and the locking tool 6. Therefore, by sequentially repeating this operation, the shutter section 7a is covered with the curtain B, and the shutter section 7a and the shutter 7 are hidden.

"Effects of the invention" As described above, the present invention has a structure in which a locking member and a locking tool for locking the curtain are provided on the front part of the bending part located on the front side of the shutter frame. There is a similar effect.

That is, the ventilation fan and shutter section can be almost completely hidden.

At that time, the work of installing, cutting, or removing the curtain can be easily and reliably performed even by a relatively amateur without being hindered by the pillars of the house or the fan frame.

In addition, in the present invention, as mentioned above, the bending part is located on the front side of the shutter frame, and the locking member and the locking tool are provided on the front side of the bending part. have an effect.

In other words, there are problems with conventional methods such as installing curtains that are fixed to the pillars of a house, or simply installing curtains on the side of a fan frame, such as difficulty in installing the curtains due to the tension state of the curtains, and loosening of the curtains. It is possible to eliminate drawbacks such as the problem of waving or the complication of installation work.

In addition, the entire shutter part can be reliably hidden in a horizontal state (planar view), and through this effect, heat loss in the middle of winter can be prevented, the shutter can be prevented from flapping due to outside wind, or the curtain can be flapping, etc. There is no noise or generation caused by the fluttering.

Further, in the present invention, as described above, the bending portion is provided protrudingly on the shutter frame, and the locking member and the locking tool are provided on the front surface of the bending portion, so that the following effects are achieved.

That is, it has a simple structure, and has the advantage of being able to perform post-equipment maintenance and installing or removing curtains with one touch in the horizontal state, and can be easily performed even in unstable areas in the field. .

Furthermore, in the present invention, as described above, a bent portion is provided protruding in the radial direction (outward side) of the shutter frame, and a locking member and a locking tool are provided on the front surface of this bent portion. Therefore, it has the following effects.

Thereby, the existing locking member can be used with the same shape or size. There is also a practical effect in that through slight modification of the conventional shutter frame, a curtain can be attached to hide the house or the shutter section.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a perspective view, and FIG. 2 is an enlarged sectional view of the same. DESCRIPTION OF SYMBOLS 1... Fan frame, 2... Fan, 4... Shutter frame, 4a... Bent part, 5... Locking member, 6...
...Locking tool, 7...Shutter, 7a...Shutter part, A, B...Curtain.

Claims (1)

[Scope of claim for utility model registration] A fan frame for an agricultural ventilation fan installed in a house,
a shutter frame that protrudes from the fan frame and is provided with multiple shutter plates; a bent portion that protrudes in a radial direction from the tip edge of the shutter frame and is located in front of the shutter; a locking member capable of locking the peripheral edge of the shutter portion of a curtain for a house wall or for concealing the shutter provided on the front side of the shutter frame; a locking tool made of a spring material that can reliably press and lock the peripheral edge of the shutter; A curtain locking device for an agricultural ventilation fan, wherein a locking member and a locking tool for locking the curtain are provided on a front surface of a bent portion located at the front of the curtain.