JPH0240237Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a windproof device for a shutter such as a heavy-duty shutter installed in an opening in a building or the like.

Generally, this type of shutter opens and closes the opening by moving the shutter curtain up and down using guide rails provided on both left and right sides of the opening as a guide. However, conventionally, the lowered shutter curtain is simply engaged and supported by the guide rails on both the left and right sides, so when it receives wind pressure from strong winds such as during a typhoon, it bends in the front and rear direction, causing the shutter curtain to move against the guide rails. This was a problem because it had the disadvantage that it could come off. Therefore, in order to prevent the shutter curtain from coming off due to wind pressure from strong winds, the guide rails are deepened to widen the engagement width of the shutter curtain, and locking hooks are installed on the slats that make up the shutter curtain. Measures have been taken, such as locking hooks that lock onto the guide rail when the tar curtain is bent, or slats that are made stronger than necessary to increase wind pressure resistance. The first method requires the preparation of a special wide guide rail and has the disadvantage that the width of the opening becomes narrow due to the wide guide rail.The second method requires a locking hook. Not only is the installation work troublesome, but it is also necessary to provide a special groove in the guide rail for raising and lowering the locking hook, which results in a special guide rail shape, and when the shutter curtain is rolled up, There are disadvantages such as the locking hook getting in the way and making it impossible to maintain the normal winding position, and the third disadvantage is that the slat is a special item, so the shutter is no longer a general-purpose product. In any case, there were problems with practicality.

The present invention was devised in order to eliminate these drawbacks in view of the above-mentioned actual situation, and it is possible to use a general-purpose shutter as is without using any special guide rails or slats. The purpose of the present invention is to provide a windproof device for a shutter, which can significantly improve windproof performance when strong winds blow due to typhoons, etc., and can effectively prevent the shutter curtain from coming off the guide rail. It is a thing,
In particular, in a shutter in which the opening is opened and closed by vertical movement of the shutter curtain, the seat plate fits into the grounding area where the seat plate at the lower end of the shutter curtain touches the ground due to the overdown of the shutter curtain. A groove is formed, and a lid is provided on the upper surface of the groove to cover it so as to be substantially flush with the ground surface of the seat plate, and a receiving position is provided on both the front and rear inner walls of the groove to receive the seat plate into the groove. A plurality of actuating pieces are provided at appropriate intervals, and each of these actuating pieces can be changed into a supporting posture for supporting and holding the received and fitted seat plate.
It is characterized by being interlocked and connected so that it can switch and transform into a receiving posture and a supporting posture at the same time.

Next, the present invention will be explained in more detail based on an embodiment shown in the drawings. In the drawings, reference numeral 1 denotes an architectural shutter installed in the opening of a building, in which a shutter curtain 2 wound around a winding shaft moves up and down while being guided by a guide rail 3. This opens and closes the opening. Reference numeral 4 denotes a seat plate attached to the lowermost slat 5 of the shutter curtain 2, and the seat plate 4 is designed to touch the ground when the shutter curtain 2 is lowered.The structure is the same as before. has been done.

Reference numeral 6 denotes a groove formed in the ground contact area of the seat plate 4, and the groove 6 is removably covered with a lid 7, so as to be substantially flush with the ground. There is. The groove 6 has a size sufficient to allow the seat plate 4 to be inserted into the groove 6 in a freely extending and retractable manner. On both the front and rear inner walls 6a of the groove 6, there are vertically oriented support shafts 8 at appropriate intervals. It is provided. Each of these support shafts 8
A substantially flat actuation piece 9 is pivotally supported so as to be swingable in the left and right directions, and a connecting arm 9b is integrally provided on a boss portion 9a of the actuation piece 9. Reference numeral 10 denotes a connecting wire fixedly passing through each of the connecting arms 9b and being suspended around pulleys 11 and 12 provided on both left and right sides of the groove 6. A locking tool 13 is fixed, and the other end is integrally connected via a return bullet 14 to a bracket 14a fixed to the inner wall 6a. When the locking device 13 is locked to the first locking body 15 on the pulling side of the return bullet 14 (see FIG. 2), the actuating pieces 9 each extend the groove 6 along the inner wall 6a. It opens wide and is in an accepting state in which the seat plate 4 can be received.On the other hand, when the locking tool 13 is locked to the second locking body 16 against the return bullet 14 (see Fig. 3). ), in conjunction with this, each actuating piece 9 rotates so as to protrude toward the center of the groove 6, and, as will be described later, protrudes above the over-down seat plate 4, causing the seat plate 4 to move into the groove 6. It is configured so that it can be transformed into a supporting position in which it is supported and held. In addition, 17 is a shock absorber, and 18 is a hook part that supports the lid body 7.

In the embodiment of the present invention constructed as described above, the opening and closing of the opening is carried out by raising and lowering the shutter curtain 2 as usual. When a strong wind is approaching and it seems like it is going to blow, in the present invention, the cover body 7 is removed and the shutter curtain 2 is lowered, and the locking tool 13 is
is pulled against the return bullet 14, and the second locking body 16
If the shutter curtain 2 is engaged with the guide rail 3, the seat plate 4 fitted in the groove 6 can be reliably supported and held, and damage such as damage caused by the shutter curtain 2 coming off the guide rail 3 due to strong winds can be effectively prevented. can do. In other words, if you encounter a situation where there is a risk of strong winds,
First, the lid 7 is removed and the groove 6 is opened, and then the shutter curtain 2 is lowered more than usual as described above, and the seat plate 4 is lowered deeply into the groove 6. At this time, the locking tool 13 is locked to the first locking body 15, and each operating piece 9 on both the front and rear sides
Since the seat plate 4 is in a receiving position along the inner wall 9a, the seat plate 4 reaches substantially the bottom of the groove 6 as the shutter curtain 2 is over-down. At this stage, when the locking device 13 is pulled against the return bullet 14 and locked to the second locking body 16, each operating piece 9 connected to the connecting wire 10 is supported and held. Rotate at the same time to the posture and seat plate 4
The upward movement of the seat plate 4 is restricted and the seat plate 4 is supported and held in the groove 6. Therefore, in this state, the shutter curtain 2 applies the wind pressure caused by the strong wind to the left and right guide rails 3 and the upper part (not shown), and also supports and holds the seat plate 4 by the groove 6 on the lower side. As a result, the deflection of the shutter curtain 2 is significantly reduced, and the deflection of the shutter curtain 2 can be significantly suppressed to prevent it from coming off the guide rail 3. Then, when the strong wind is no longer affected by the strong wind, if the locking tool 13 is released from the second locking body 16, contrary to the above, the urging force of the returning projectile 14 will cause the Each operating piece 9 is automatically rotated back to the receiving position, and then the shutter curtain 2 can be raised. After the seat plate 4 comes out of the groove 6, if the groove 6 is covered with the lid 7, the opening can be opened and closed in the conventional manner while the ground side is almost flat.

As described above, in the present invention, if the shutter curtain 2 blocking the opening is bent due to strong winds such as a typhoon and there is a risk of it coming off the guide rail 3, the lid body 7 must be removed. After that, the shutter curtain 2 is lowered, and then the locking device 13 is locked to the second locking body 15 against the biasing bullet 14. All the actuating pieces can be removed by an extremely simple one-touch operation. 9 can be simultaneously transformed from the receiving position to the supporting position, making it possible to make it in an excellent wind pressure resistant state, and as a result, it has excellent workability.
The deflection phenomenon of the shutter curtain 2 due to strong wind pressure can be effectively prevented, and the shutter curtain 2 can be reliably prevented from coming off the guide rail 3. Moreover, the deflection prevention effect of the shutter curtain 2 can be achieved by making the guide rail deeper, attaching a special member to the shutter curtain to prevent it from coming off, or using special slats with strong reinforcement. There is no need to create a specific shutter each time, and a general-purpose shutter can be used as is to provide effective and excellent wind pressure resistance. Moreover, the support holding function of the seat plate 4 is achieved by effectively utilizing the dead space on the ground side where the seat plate 4 touches the ground.
Since it is only necessary to form a This is extremely convenient as it also has the effect of working.

It should be noted that the present invention is of course not limited to the above-mentioned embodiment. For example, as shown in FIG.
The actuating piece 9 may be operatively connected to the actuating lever 19 so that the actuating piece 9 changes its shape as described above by switching the switching lever 19.

In summary, the present invention provides a shutter in which an opening is opened and closed by the up and down movement of the shutter curtain, in which the seat plate at the lower end of the shutter curtain touches the ground by over-downing the shutter curtain. A groove into which the board fits is formed, and a lid is provided on the upper surface of the groove to cover the seat plate so that it is substantially flush with the ground surface of the seat plate. A plurality of actuating pieces are provided at appropriate intervals and can be changed into a receiving position for accepting the seat plate and a supporting position for supporting and holding the received and fitted seat plate, and each of these actuating pieces can be simultaneously switched between the receiving position and the supporting position. Since the shutter curtains are connected to each other so that the shutter curtains are connected to each other, if there is a risk that the shutter curtains will be exposed to strong wind pressure, such as during a typhoon, after removing the lid and opening the recessed grooves, the shutter curtains can be lowered down. By the extremely simple operation of inserting the seat plate into the groove and transforming the actuating piece into a supporting position, the shutter curtain has a supporting and holding action on the underside in which the seat plate is supported and held in the groove. Therefore, it has extremely high wind pressure resistance, effectively eliminating the deflection phenomenon of the shutter curtain due to strong winds and preventing it from coming off the guide rail. Furthermore, although a plurality of these actuating pieces are provided in the groove to ensure support and retention of the seat plate, each of them is integrally interlocked and connected so that they can change their appearance at the same time. Therefore, the actuating piece can be changed from the receiving position to the supporting position at the same time, and work efficiency can be significantly improved. Furthermore, the deflection prevention effect of the shutter curtain can be achieved by using a general-purpose shutter without making the slats special with reinforcement, deepening the guide rails, or installing locking hooks on the slats. This can be done using the shutter as is. Furthermore, since this deflection prevention effect is achieved by the grooves formed by effectively utilizing the dead space at the contact point where the seat plate makes contact with the ground, these grooves do not get in the way during normal use of the shutter. This makes it possible to ideally prevent deflection of the shutter curtain.

[Brief explanation of the drawing]

The drawings show an embodiment of the windproof device in a shutter according to the present invention, in which FIG. 1 is an overall front view of the shutter, FIG. 2 is a plan view showing the reception state of the windproof device, and FIG. 3 is a windproof device. A plan view showing the supporting state of the device, Fig. 4 is a front view of the windproof device, Fig. 5 is a side view showing the windproof device in its normal usage state, Fig. 6 is a side view showing the windproof state, and Fig. 7 is the operation. An exploded perspective view of the piece, and FIG. 8 is a front view of the main part of another example. In the figure, 1 is the shutter, 2 is the shutter curtain, 3 is the guide rail, 4 is the seat plate, 5 is the slat, 6 is the groove, 7 is the lid, 8 is the support shaft, 9 is the operating piece, and 10 is the connection Wires, 11 and 12 are pulleys, 1
3 is a locking device, 14 is a return bullet, 15 is a first locking body, 16 is a second locking body, 17 is a buffer bullet, and 18 is a hook portion.

Claims (1)

[Scope of utility model registration request] In a shutter whose opening is opened and closed by vertical movement of the shutter curtain, a concave groove into which the seat plate fits when the shutter curtain is over-down is formed in the ground contact area where the seat plate at the lower end of the shutter curtain makes contact with the ground. A lid body is provided on the upper surface of the groove to cover it so as to be substantially flush with the ground surface of the seat plate, and a receiving posture and a receiving position for receiving the seat plate into the groove are provided on both the front and rear inner walls of the groove. A plurality of actuating pieces are provided at appropriate intervals and can be changed into a supporting position for supporting and holding the seat plate, and these actuating pieces are interlocked and connected so that they can be simultaneously switched and transformed into the receiving position and the supporting position. A windproof device for shutters featuring: