Fluttering prevention apparatus

Abstract

To provide a fluttering prevention apparatus which can be easily installed afterwards and securely suppress the fluttering of shutter slats.SOLUTION: A flexible body holding part 13 on a main body 11 of a fluttering prevention apparatus 1 is provided with a recessed part 14 in a longitudinal direction and is inserted with a flexible body 22. An attachment part 12 provided with a magnet 21 lies at one side of the flexible body holding part 13, and a grip part 15 used for removing the fluttering prevention apparatus 1 is provided at the other side. Upon attaching the fluttering prevention apparatus 1, the magnet 21 is magnetically attached to a guide rail to fix the fluttering prevention apparatus 1, and the flexible body 22 is pressed on shutter slats. In this way, the plural shutter slats are sandwiched between the flexible body 22 of the long-length fluttering prevention apparatus 1 and a groove part of the guide rail to suppress the fluttering of the shutter slats.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an anti-vibration device used for a shutter device installed in an opening of a building, which reduces impact noise, vibration noise, etc. caused by fluttering between a shutter and a guide rail due to wind pressure or the like when the shutter is closed.

Background Art

[0002] A shutter device is configured such that a plurality of shutter slats are connected at a coupling portion to form a shutter curtain, both ends of the shutter slats are inserted into groove portions of a guide rail, and the shutter curtain is moved along the grooves of the guide rail when opening and closing. FIG. 10 is a horizontal sectional view of a main part of a conventional shutter device. In the figure, 2 is a shutter slat, 3 is a coupling portion, 4 is a guide rail, 5 is a groove portion, 6 is a sound-absorbing material, 7 is a rail mounting member, 8 is a building body, and 9 is a wall material. The shutter device has a guide rail 4 attached to a building body 8 via a rail mounting member 7 in this example. This guide rail 4 is provided at both ends of the opening, and groove portions 5 are provided on opposing surfaces.

[0003] A shutter curtain is provided to close the opening. A plurality of shutter slats 2 constituting the shutter curtain are coupled and connected at a coupling portion 3 so that the shutter curtain can be wound up. Then, both ends of the shutter slat 2 are inserted into the groove portion 5 of the guide rail 4, and the shutter curtain is moved along the guide rail 4.

[0004] In order to smoothly move the shutter curtain, the opening width of the groove portion 5 of the guide rail 4 is made wider than the width of the shutter slat 2, and a gap is provided between the guide rail 4 and the shutter slat 2. Therefore, when the shutter slat 2 receives pressure such as wind pressure when the shutter is closed, the shutter slat 2 vibrates within the groove portion 5 of the guide rail 4, and the shutter slat 2 flutters. There has been a problem that the shutter slat 2 and the guide rail 4 come into contact with each other during this fluttering, generating noise.

[0005] In order to prevent noise when opening and closing such a shutter, a sound-absorbing material 6 is provided in the groove portion 5 of the guide rail 4 into which the shutter slat 2 is inserted. By this sound-absorbing material 6, even when the shutter slat 2 comes into contact with the groove portion 5 of the guide rail 4 when the shutter curtain moves, the contact sound at the time of contact can be reduced. However, since the sound-absorbing material 6 is used to suppress the contact sound with the groove portion 5 of the guide rail 4 while the shutter slat 2 is moving while swaying, a relatively hard resinous material is used to prevent wear. In such a hard sound-absorbing material 6, the effect of reducing the flapping sound of the shutter slat 2 as described above is low.

[0006] Various methods have been devised to prevent the flapping of the shutter slats. For example, a mechanism for pressing the shutter slats is provided in the guide rail, and it is conceivable to operate the mechanism in a state where the shutter is closed to suppress the flapping of the shutter slats. However, providing such a mechanism requires that the mechanism be provided in the guide rail in advance when installing the shutter device. Therefore, it can only be used with a specific shutter device, and it cannot be provided for an already installed shutter device.

[0007] As a flapping prevention device that can be used simply, for example, Patent Document 1 describes suppressing the flapping of the shutter slats by inserting a detachable buffer member into the gap between the shutter slats and the guide rail. However, such a buffer member inserted into the gap generates a large frictional force between the buffer member and the shutter slats or the sound-absorbing material when attaching and detaching to the gap, so the sound-absorbing material and the buffer member are likely to be damaged. There is also a problem that it takes time and effort for attachment and detachment.

[0008] As another rattling prevention device, there is a shutter curtain fastener described in Patent Document 2. One side of the staple is attached to the guide rail with double-sided tape or the like, and a rubber magnet piece is provided on the other side to magnetically adsorb to the shutter slat, thereby suppressing the rattling of the shutter slat. According to this configuration, although it can be installed as a retrofit to the shutter device, it cannot be easily removed, and there are problems such as being obstructive when not in use and a decrease in design quality.

[0009] Also, due to the structure of adsorbing the shutter slat to the indoor side with a rubber magnet, there is always a gap between the sound insulation material on the outdoor side and the shutter slat. Therefore, it is necessary to make the attractive force between the rubber magnet and the shutter slat sufficiently large to suppress rattling. However, when opening the shutter, it is necessary to overcome the adsorption force and pull the rubber magnet away from the shutter slat, so there is a problem that it cannot be opened manually without preparing tools.

Prior Art Documents

Patent Documents

[0010]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0011] The present invention has been made in view of the above circumstances, and an object thereof is to provide a rattling prevention device that can be used simply and as a retrofit, and can surely suppress the rattling of the shutter slat.

Means for Solving the Problems

[0012] The present invention relates to an anti-rattling device used for a shutter device in which ends of a plurality of shutter slats are inserted into a groove portion of a guide rail, the anti-rattling device having mounting means detachably mounted on an outer peripheral surface of the guide rail and pressing means for pressing a portion of the plurality of shutter slats exposed from the groove portion. The pressing means preferably has flexible body holding means having a recess and a flexible body held in the recess of the flexible body holding means. Further, the flexible body preferably has a hollow shape at a portion that presses the shutter slat. Furthermore, the mounting means preferably has magnetic adsorption means disposed adjacent to the pressing means and facing the outer peripheral surface of the guide rail. Still further, it is preferable to have removal means for removing the mounting means from the outer peripheral surface of the guide rail by the action of a lever with an end portion of the magnetic adsorption means as a fulcrum.

Advantages of the Invention

[0013] According to the present invention, since it is detachable, it can be used simply and even retrofitted. Also, by pressing a portion of the plurality of shutter slats exposed from the groove portion and sandwiching the plurality of shutter slats between the guide rail, rattling of the shutter slats can be surely suppressed. Further, since a large frictional force does not act during attachment and detachment, there is an effect that damage to a soundproofing material or the anti-rattling device can be prevented.

[0014] As a configuration in which the shutter slat is pressed by a flexible body, by holding the flexible body in a recess of the flexible body holding means, the height of the flexible body can be easily adjusted, and it can correspond to various shutter devices. Also, by making the pressing portion of the flexible body have a hollow shape, for example, even if the shutter slat rattles, the rattling can be absorbed by the hollow portion being crushed. Even if the shutter slat is deformed such as being curved by wind pressure or the like, it can be corresponded by the hollow portion being crushed according to the shape.

[0015] Furthermore, it has magnetic adsorption means arranged to face the outer peripheral surface of the guide rail as the mounting means, and can be easily attached and detached by magnetically adsorbing to the guide rail. Also, if a removal means is provided, the mounting means can be easily removed from the outer peripheral surface of the guide rail by the action of the strut.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Embodiments for Carrying Out the Invention

[0017] FIG. 1 is a cross-sectional view and a view taken along arrow S showing an embodiment of the present invention, FIG. 2 is a front view showing an example of a usage mode in an embodiment of the present invention, FIG. 3 is a longitudinal cross-sectional view of the main part, and FIG. 4 is a horizontal cross-sectional view of the main part. Among the reference numerals in the figures, the same reference numerals are given to the same parts as in FIG. 10, and many overlapping explanations are omitted. 1 is an anti-vibration device, 11 is a main body, 12 is a mounting part, 13 is a flexible body holding part, 14 is a concave part, 15 is a handle part, 21 is a magnet, 22 is a flexible body, and 23 is a hollow part. In an example of the anti-vibration device 1 shown in FIG. 1, as shown in FIG. 1(B), it has an elongated shape so that it can be mounted along the guide rail 4. An example of the cross-sectional shape in the width direction is shown in FIG. 1(A).

[0018] A flexible body holding part 13 is provided in the main body 11 of the anti-vibration device 1 as flexible body holding means, and a concave part 14 is provided in the flexible body holding part 13 in a groove shape extending in the longitudinal direction. On one side adjacent to the flexible body holding part 13, a mounting part 12 for detachably mounting the anti-vibration device 1 on the outer peripheral surface of the guide rail 4 is provided, and on the other side, a handle part 15 used when removing the anti-vibration device 1 is provided. The main body 11 is preferably made of a lightweight and strong resin material for easy carrying, but it can be made of any material such as steel such as aluminum or stainless steel.

[0019] In this embodiment, the pressing means includes a flexible body holding part 13 having a concave part 14 and a flexible body 22 held in the concave part 14. As shown in FIG. 2, when the anti-vibration device 1 is attached to the shutter device, the flexible body 22 presses the portions of the plurality of shutter slats 2 exposed from the groove portion of the guide rail 4, suppressing the vibration of the shutter slats 2. The flexible body 22 has a restoring force, and preferably has a hollow part 23 in the portion pressing the shutter slat 2. For example, even if the shutter slat 2 vibrates, the hollow part 23 can be crushed to absorb the vibration. Also, even if elastic deformation such as the shutter slat 2 being curved due to wind pressure occurs, the hollow part 23 is crushed according to the deformed shape, so that the force is not directly transmitted to the mounting part 12 and the impact force is alleviated, preventing the anti-vibration device 1 from coming off.

[0020] In this example, the mounting portion 12 is formed as a plate shape extending in a direction opposite to the handle portion 15. In this example, a magnet 21 is provided as a magnetic adsorption means. When the rattling prevention device 1 is attached, the mounting portion 12 faces the outer peripheral surface of the guide rail 4, and the rattling prevention device 1 is fixed by magnetically adsorbing it to the guide rail 4 with the magnet 21, and the flexible body 22 is pressed against the shutter slat 2. In this example, the magnet 21 is magnetically adsorbed to a surface of the outer peripheral surface of the guide rail substantially parallel to the shutter slat 2. Therefore, the magnetic force of the magnet 21 acts in a direction substantially orthogonal to the shutter slat 2, and thereby acts as a force for pressing the flexible body 22 against the shutter slat 2.

[0021] Note that the height H1 from the surface where the magnet 21 shown in FIG. 1 magnetically adsorbs to the guide rail 4 to the tip of the flexible body 22 may be set so that the flexible body 22 can sufficiently press the shutter slat 2 when the rattling prevention device 1 is attached. Explaining with reference to FIG. 4, the height H1 may be set to a value larger than the distance H0 from the outer peripheral surface of the guide rail 4 to the engaging portion 3 where the magnet 21 is magnetically adsorbed in a state where the shutter slat 2 is pressed against the sound insulation material 6 on the outdoor side. Further, as shown in FIG. 2, the vertical length L of the rattling prevention device 1 preferably has a length that is a multiple of the vertical width W of the shutter slat 2, and the shutter slat 2 can be pressed over a plurality of portions by the flexible body 22 arranged in the longitudinal direction. Desirably, it has a length that can press three or more shutter slats 2.

[0022] The removal handle 15 is a removal means used when removing the flutter prevention device 1 from the outer peripheral surface of the guide rail 4. When you grasp the removal handle 15 and pull, the flutter prevention device 1 rotates by the action of a lever with the end of the mounting portion 12 or the end of the magnet 21 located at a position away from the removal handle 15 as a fulcrum, and the flutter prevention device 1 can be easily removed against the magnetic force of the magnet 21. Once the flutter prevention device 1 is removed, problems such as being obstructive when not in use or a decrease in design quality do not occur. The removal handle 15 will be further described later with reference to the drawings.

[0023] An example of the usage mode of the flutter prevention device 1 shown in FIG. 1 is shown in FIGS. 2 to 4. Here, it shows the case where the shutter device is installed to partition the inside and outside of the house and the flutter prevention device 1 is attached to the indoor side.

[0024] When attaching the flutter prevention device 1 to the shutter device, it is attached along the guide rail 4 in the vicinity of the groove portion 5 of the guide rail 4. At that time, the magnet 21 is magnetically attracted to the outer peripheral surface of the guide rail 4, and the flexible body 22 is attached so as to come into contact with the shutter slat 2 in the vicinity of the groove portion 5 of the guide rail 4. Due to the magnetic force of the magnet 21, the flutter prevention device 1 is fixed to the guide rail 4, and the flexible body 22 presses the shutter slats 2 of the portion exposed from the groove portion 5 of the guide rail 4 over a plurality of sheets.

[0025] In a shutter device, a plurality of shutter slats 2 are joined together at a joining portion 3 to form a shutter curtain. Usually, the joining portion 3 of the shutter slat 2 protrudes indoors. When the rattling prevention device 1 is attached indoors, as shown in FIG. 4, the flexible body 22 presses the joining portion 3 protruding indoors. As described with reference to FIG. 10, gaps are provided between both sides of the shutter slat 2 and the groove portion 5 (opening portion) of the guide rail 4. However, when the shutter slat 2 is pressed from the indoor side by the flexible body 22, the shutter slat 2 is pushed outdoors and pressed against the sound-absorbing material 6 provided on the outdoor side of the groove portion 5 of the guide rail 4. Since the flexible body 22 presses the shutter slat 2 at the portion exposed from the groove portion 5 in the vicinity of the groove portion 5 of the guide rail 4, the shutter slat 2 is substantially sandwiched between the outdoor sound-absorbing material 6 and the flexible body 22 of the rattling prevention device 1. As a result, even when the shutter slat 2 is subjected to pressure and tries to rattle due to, for example, wind pressure, the movement of the shutter slat 2 sandwiched between the sound-absorbing material 6 and the flexible body 22 is restricted, and rattling is suppressed. Therefore, it is possible to reduce the generation of impact sound and vibration sound between the shutter slat 2 and the guide rail 4 due to rattling. In particular, by pressing a plurality of joining portions 3 with the flexible body 22 to restrict the movement of the shutter slat 2, it is possible to satisfactorily suppress the rattling of the entire shutter curtain.

[0026] FIG. 5 is an explanatory diagram showing an example of the state when the shutter slat 2 in one embodiment of the present invention receives pressure. When the shutter curtain receives pressure such as wind pressure on the outdoor side, it tends to move to the indoor side as a whole, but the movement of the end portion of the shutter slat 2 is restricted by the guide rail 4. Therefore, depending on the received pressure, the central portion of each shutter slat 2 may be deformed such as bulging and curving toward the indoor side. In FIG. 5, the state in which the shutter slat 2 is curved toward the indoor side under pressure from the outdoor side is exaggeratedly shown. When the flutter prevention device 1 is attached, the shutter slat 2 is in a state of being sandwiched between the sound insulation material 6 and the flexible body 22 as described above, and the shutter slat 2 will be deformed in this state.

[0027] As described above, the flexible body 22 has a hollow portion 23 in the portion that presses the shutter slat 2. Therefore, even when the shutter slat 2 is deformed in this way, the hollow portion 23 is deformed flexibly in response to the deformation, so that good pressing is maintained. Further, when the hollow portion 23 is crushed, the side portion of the hollow portion 23 covers the tip portion of the concave portion 14 so that the shutter slat 2 does not contact the hard main body 11.

[0028] When attaching the rattling prevention device 1 to the guide rail 4, it can be attached at any position in the extending direction of the guide rail 4 as long as the magnet 21 is magnetically attracted to the guide rail 4 and the flexible body 22 presses the shutter slat 2. As described above, the vertical length L of the rattling prevention device 1 is preferably several times the vertical width W of the shutter slat. If the vertical length L of the rattling prevention device 1 is at least twice the vertical width W of the shutter slat 2, the engaging portion 3 of the shutter slat 2 can be pressed at multiple points along the flexible body 22 extending in the longitudinal direction of the rattling prevention device 1. Therefore, there is no need to worry about the mounting position of the rattling prevention device 1, and it can be easily mounted. If the vertical length L of the rattling prevention device 1 is even longer, the engaging portion 3 of the shutter slat 2 can be reliably pressed at multiple points, thereby effectively suppressing the rattling of the entire shutter curtain and reducing impact sounds and vibration sounds. Desirably, if three or more engaging portions 3 can be pressed by the flexible body 22, the effect can be enhanced. The vertical length L of the rattling prevention device 1 may, of course, cover the entire height of the shutter opening, but it may be determined in consideration of the rattling suppression effect and ease of handling. Also, a plurality of rattling prevention devices 1 may be prepared and mounted at multiple locations so that the flexible body 22 substantially presses a plurality of engaging portions 3. Of course, it goes without saying that the rattling prevention device 1 may be provided on both the left and right sides of the shutter curtain.

[0029] FIG. 6 is an explanatory view showing an example of a state when performing height adjustment in an embodiment of the present invention. In the figure, 31 is a cushion rubber. Generally, the width of the guide rail 4 and the position of the groove portion 5 are in a substantially similar dimensional relationship, but there may be cases where the dimensional relationship is different due to the design and fit of the building. As a countermeasure for such cases, for example, as shown in FIG. 6(A), one or more sheets of cushion rubber 31 may be inserted into the bottom of the recess 14, and the flexible body 22 may be fitted thereon. By adjusting the number of sheets of cushion rubber 31 inserted, the distance between the outer peripheral surface of the guide rail 4 that magnetically attracts the magnet 21 and the distance at which the flexible body 22 presses the shutter slat 2 can be adjusted.

[0030] Alternatively, several cushion rubbers 31 may be inserted in advance, and adjustment may be made by removing the cushion rubbers 31. For example, when the magnet 21 does not magnetically adsorb to the outer peripheral surface of the guide rail 4 with a plurality of cushion rubbers 31 inserted, one or a plurality of cushion rubbers 31 may be removed and adjusted until the magnet 21 magnetically adsorbs.

[0031] As another method, as shown in FIG. 6(B), adjustment can also be made by the number of magnets 21. For example, when making it shorter than the basic distance, the number of magnets 21 can be increased, and when making it longer, the number of cushion rubbers 31 can be increased. Thus, the rattling prevention device 1 can be made to correspond to shutter devices having various dimensional relationships and can be used.

[0032] The recess 14 provided in the flexible body holding portion 13 on the main body 11 is effective for adjustment by the cushion rubber 31 as shown in FIG. 6(A). However, when such adjustment is not necessary, the flexible body 22 may be provided directly with an adhesive or the like without providing the recess 14 in the flexible body holding portion 13, or the flexible body 22 may be provided by various configurations such as providing a convex portion and fitting the convex portion into the flexible body 22.

[0033] FIG. 7 is a cross-sectional view showing a modification of the handle portion in an embodiment of the present invention. As described above, the handle portion 15 is a removing means used when removing the rattling prevention device 1 from the outer peripheral surface of the guide rail. FIG. 7(A) reproduces the embodiment shown in FIG. 1(A). When a hand is placed on the handle portion 15 and pulled, the rattling prevention device 1 rotates in the F direction by the lever action with the end of the mounting portion 12 or the end C of the magnet 21 located at a position away from the handle portion 15 as the fulcrum of the lever, and the rattling prevention device 1 can be easily removed against the magnetic force of the magnet 21.

[0034] Of course, the position where the handle portion 15 is provided is not limited to the side opposite to the mounting portion 12 with the flexible body holding portion 13 interposed therebetween. For example, as shown in FIG. 7(B), it may be provided on the side opposite to the flexible body holding portion 13 with the mounting portion 12 interposed therebetween. Alternatively, as shown in FIG. 7(C), it may be provided on the side opposite to the flexible body 22 with the flexible body holding portion 13 interposed therebetween, or as shown in FIG. 7(D), it may be provided between the flexible body holding portion 13 and the mounting portion 12, and it may be provided at an arbitrary position. Also, regarding the shape of the handle portion 15, it can be provided in various forms such as being provided as a protrusion or as a recess.

[0035] In addition to providing the handle portion 15 over the entire longitudinal length of the flutter prevention device 1, it may be provided partially or divided into a plurality of parts. Furthermore, it can be provided in various manners such as by giving it a bulge, forming or providing an anti-slip feature. Of course, a removal mechanism other than the handle portion 15 may be provided as the removal means.

[0036] FIG. 8 is a cross-sectional view showing another embodiment of the present invention, and FIG. 9 is an explanatory view showing an example of a usage mode in another embodiment of the present invention. The reference numerals in the figures are the same as those in the above example. In the above example, as shown in FIG. 4 for example, the guide rail 4 was attached to the rail attachment member 7 on the outdoor side. The shutter device is not limited to such an example, and for example, the guide rail 4 may be attached to the rail attachment member 7 on the indoor side. In such a shutter device, since the rail attachment member 7 is attached to the surface of the outer peripheral surface of the indoor side of the guide rail 4 that is substantially parallel to the shutter curtain, the above-described flutter prevention device 1 cannot be installed on this surface. The flutter prevention device 1 described below shows an example corresponding to such a shutter device.

[0037] In this example, the flutter prevention device 1 also has a recess 14 provided in the flexible body holding portion 13 on the main body 11 for holding the flexible body 22. A mounting portion 12 is provided on one side adjacent to the flexible body holding portion 13, and a handle portion 15 is provided on the other side. In this example, as shown in FIG. 8, the direction of the mounting portion 12 is approximately 90 degrees different from that in the example shown in FIG. 1. The mounting portion 12 is formed as a plate-like portion further extending in the direction from the tip end portion to the bottom portion of the recess 14. And the outer surface on the side opposite to the handle portion 15 of the flexible body holding portion 13 is also used as the mounting portion 12, and a magnet 21 is provided on this mounting portion 12.

[0038] When mounting the flutter prevention device 1 in this example, it is magnetically attracted by the magnet 21 to the outer peripheral surface of the guide rail 4 near the groove portion 5 of the guide rail 4 and substantially orthogonal to the shutter slat 2. At that time, the flexible body 22 is attached so as to be in pressure contact with the shutter slat 2. Thereby, with the flexible body 22 pressing the shutter slat 2, the flutter prevention device 1 is fixed to the guide rail 4 by the magnetic force of the magnet 21.

[0039] In this example, since the mounting position of the flutter prevention device 1 in the outdoor - indoor direction can be adjusted to some extent, the height adjustment by the laying rubber 31 or the magnet 21 as shown in FIG. 6 is not necessary, but adjustment may be performed for another purpose such as adjustment of the pressing force.

[0040] When removing the flutter prevention device 1 in this example, one can place a hand on the handle portion 15 and pull it in a direction away from the shutter slat 2 and also slightly pull it in the direction of the guide rail 4. The flutter prevention device 1 rotates with the end portion of the mounting portion 12 or the end portion C of the magnet 21 located at a position away from the recess 14 as the fulcrum of the lever, and the flutter prevention device 1 can be easily removed against the magnetic force of the magnet 21. Once removed, there will be no problems such as being obstructive when not in use or a decrease in design quality.

[0041] Note that also in this other embodiment, various modifications are possible in the same manner as in the above-described one embodiment.

[0042] In each of the above-described embodiments, the mounting state is exemplified assuming that the flutter prevention device 1 is installed on the indoor side. However, it is not limited to this, and it may be installed on the outdoor side. For example, as shown in FIG. 4, when the rail attachment member 7 is provided on the outdoor side, the shutter slat 2 may be pressed from the outdoor side using the flutter prevention device 1 shown in FIG. 8. Further, for example, as shown in FIG. 9, when the rail attachment member 7 is provided on the indoor side, the shutter slat 2 may be pressed from the outdoor side using the flutter prevention device 1 shown in FIG. 1.

[0043] When the flutter prevention device 1 is installed on the outdoor side in this way, the flexible body 22 presses the outer surface of the shutter slat 2 toward the indoor side. Along with this, the engaging portion 3 of the adjacent shutter slat 2 is pressed against the sound-absorbing material 6 provided on the indoor side of the groove portion 5 of the guide rail 4. In this way, the shutter slat 2 is substantially sandwiched between the indoor sound-absorbing material 6 and the flexible body 22 of the flutter prevention device 1, the movement of the shutter slat 2 when flutter occurs is restricted, and the generation of impact sound and vibration sound between the shutter slat 2 and the guide rail 4 due to flutter can be reduced. In particular, by pressing a plurality of shutter slats 2 with the flexible body 22 and pressing a plurality of engaging portions 3 against the indoor sound-absorbing material 6 to restrict the movement of the shutter slat 2, the flutter of the entire shutter curtain can be suppressed well.

[0044] In each of the above-described embodiments, since the magnet 21 is used as the mounting means, the guide rail 4 is made of, for example, a steel material that can be magnetically adsorbed by the magnet 21. However, since the shutter slat 2 only needs to be pressed by the flexible body 22, it is not limited to a steel material, and may be a shutter slat made of various materials such as resin or wood, or a shutter slat to which a panel of such a material is added.

[0045] In addition, in each of the above-described embodiments, the magnet 21 is used as the mounting means, but the mounting means is not limited to a magnet. For example, when the material of the guide rail 4 is aluminum, etc., there may be a case where the anti-vibration device 1 cannot be magnetically adsorbed. As another example of the mounting means, for example, fitting holes may be formed in the guide rail 4, protrusions may be provided as the mounting means of the anti-vibration device 1, and the anti-vibration device 1 may be mounted by fitting the protrusions into the fitting holes. Alternatively, if it is a place where the frequency of removal and attachment is low, it may be fixed with a screw. When opening the shutter curtain, the anti-vibration device 1 is removed, so various configurations can be applied as the mounting means as long as the structure can easily attach and detach to and from the guide rail 4.

[0046] In addition, in each of the above-described embodiments, it has been described that the sound-absorbing material 6 is provided at the end of the groove portion 5 of the guide rail 4, but the anti-vibration device 1 of the present invention can also be used in a shutter device in which the sound-absorbing material 6 is not provided.

[0047] The anti-vibration device 1 of the present invention is not a mechanism built into the shutter device, but is configured separately from the shutter device. Therefore, it is not necessary to provide it in advance when installing the shutter device, and it is possible to provide it retrofitted to various already installed shutter devices, for example. In addition, since it is configured to be detachable from the shutter device, there will be no problems such as being obstructive or reducing the design quality when not in use.

[0048] As described above, an example of a configuration suitable for the implementation of the present invention has been described. The present invention is not limited to these embodiments, and any configuration is acceptable as long as it has a mounting means that can be detachably mounted on the outer peripheral surface of the guide rail and can press the shutter slats over a plurality of them by a pressing means in a state of being mounted on the guide rail, and it can be realized by various configurations and modifications.

Explanation of reference numerals

[0049] 1... Flapping prevention device, 2... Shutter slat, 3... Clamping part, 4... Guide rail, 5... Groove part, 6... Sound-absorbing material, 7... Rail mounting material, 8... Body, 9... Wall material, 11... Main body, 12... Mounting part, 13... Flexible body holding part, 14... Concave part, 15... Handle part, 21... Magnet, 22... Flexible body, 23... Hollow part, 31... Cushion rubber.

Claims

1. An anti-rattling device used for a shutter device in which ends of a plurality of shutter slats are inserted into a groove portion of a guide rail, the anti-rattling device comprising: mounting means detachably mounted on an outer peripheral surface of the guide rail; and pressing means for pressing a portion of the plurality of shutter slats exposed from the groove portion.

2. The anti-rattling device according to claim 1, wherein the pressing means includes flexible body holding means having a recess, and a flexible body held in the recess of the flexible body holding means.

3. The anti-rattling device according to claim 2, wherein the flexible body has a hollow shape at a portion that presses the shutter slat.

4. The anti-rattling device according to any one of claims 1 to 3, wherein the mounting means includes magnetic adsorption means disposed adjacent to the pressing means and facing the outer peripheral surface of the guide rail.

5. The anti-rattling device according to claim 4, further comprising removing means for removing the mounting means from the outer peripheral surface of the guide rail by the action of a lever with an end of the magnetic adsorption means as a fulcrum.

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