JP3875146B2 - Noise suppression device for roll-up shutter device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a take-up shutter device in which a shutter curtain is taken up and fed out by a take-up shaft, and more particularly to a noise suppression device in a take-up shutter device for suppressing noise generation during take-up. For example, the present invention can be used in a shutter device in which at least a part of the shutter curtain is formed by connecting a large number of metal slats.
[0002]
[Background]
In a retractable shutter device, the shutter curtain is opened and closed by winding and unwinding the shutter curtain by a take-up shaft. Such a shutter device has openings such as windows and doorways provided in structures such as buildings and underground malls. It is used for various purposes such as opening and closing the doors and forming disaster prevention zones in the building.
[0003]
[Problems to be solved by the invention]
In this winding shutter device, when the winding shaft winds up the shutter curtain, one of the two surfaces of the shutter curtain that is exposed when the shutter curtain is extended from the winding shaft is The shutter curtain is rolled up while contacting the other surface and continuously generating this contact. For this reason, noise may occur due to contact between the two surfaces of the shutter curtain during winding, and the main body of the shutter curtain is formed by connecting a large number of metal slats in the opening and closing direction of the shutter curtain. In some cases, this noise may increase.
[0004]
An object of the present invention is to provide a noise suppression device for a retractable shutter device that can suppress the generation of noise when the shutter curtain is retracted.
[0005]
[Means for Solving the Problems]
The noise suppression device for a retractable shutter device according to the present invention is a retractable shutter device comprising a retractable shaft and a shutter curtain that opens and closes by winding and unwinding by the retractable shaft. A cushioning member is provided on at least one of the two surfaces of the shutter curtain that is exposed when the shutter curtain is unwound from the other surface when the shutter curtain is wound around the winding shaft. It is characterized by this.
[0006]
According to this apparatus, at least one of the two surfaces of the shutter curtain exposed when the shutter curtain is unwound from the take-up shaft contacts the other surface when the shutter curtain is taken up by the take-up shaft. Therefore, when the shutter curtain is wound around the winding shaft, the buffer member intervenes between the two surfaces of the shutter curtain. For this reason, direct contact between the two surfaces of the shutter curtain is prevented or reduced, and as a result, generation of noise during winding of the shutter curtain can be suppressed.
[0007]
In this apparatus, the buffer member may be provided on the two surfaces of the shutter curtain exposed when the cushion member is drawn out from the winding shaft, or may be provided on only one of the two surfaces.
[0008]
In the case where the buffer member is provided only on one surface of the shutter curtain, the shutter device is an opening such as a window or an entrance provided in a structure such as a building or an underground mall, and is provided at a position that separates the room from the outside When the opening is used to open and close the shutter curtain, the cushioning member may be provided on the surface of the shutter curtain on the indoor side or on the surface of the shutter curtain on the outdoor side.
[0009]
In the former case, the cushioning member can be protected from various external forces acting on the outdoor surface of the shutter curtain, and the cushioning member is required to have a good exterior appearance. Therefore, the commercial value of the shutter device when the shutter curtain is closed can be made the same as that of a normal shutter device not provided with a buffer member.
[0010]
The cushioning member may be provided over the entire opening / closing range of the shutter curtain, but the cushioning member is provided directly on the two surfaces of the shutter curtain facing each other when the shutter curtain is wound by the winding shaft. About the shutter device in which a part of the shutter curtain that is not wound by the winding shaft is generated when the shutter curtain is fully opened by winding of the winding shaft because it is for preventing or reducing contact. The buffer member may be provided only in the winding range by the winding shaft of the shutter curtain excluding this portion.
[0011]
Further, in order to provide the buffer member on at least one surface of the shutter curtain, all or a part of the buffer member may be attached to the shutter curtain, and a part of the buffer member is attached to a member combined with the shutter curtain. In addition, the remaining part of the buffer member may not be attached to the shutter curtain, and a part of the buffer member is attached to the member coupled to the shutter curtain, and part or all of the remaining part of the buffer member is shuttered. It may be attached to the curtain.
[0012]
An example of attaching a part of the buffer member to a member coupled to the shutter curtain is coupling the end of the buffer member on the winding shaft side to the winding shaft. In this case, it is preferable that the end portion of the buffer member on the winding shaft side is coupled to the winding shaft together with the end portion of the shutter curtain on the winding shaft side.
[0013]
According to this, the end of the shutter curtain on the take-up shaft side can be coupled to the take-up shaft by using the coupler for joining the end of the take-up shaft side to the take-up shaft. It is possible to share the work of attaching the shutter curtain to the take-up shaft and the work of attaching the shutter curtain to the take-up shaft, and to share the coupler used for the work.
[0014]
In this way, when the end of the cushioning member on the winding shaft side is jointly coupled to the winding shaft together with the end of the shutter curtain on the winding shaft side, the end of the shutter curtain on the winding shaft side is the shutter. When the curtain main body is a suspension base member for connecting the take-up shaft to the take-up shaft, the end portion on the take-up shaft side of the shutter curtain that is fastened together with the end portion on the take-up shaft side of the buffer member The original member may be used, and when there is no such hanging original member, the end of the shutter curtain body on the winding shaft side may be used.
[0015]
In addition, when the end of the shutter curtain on the take-up shaft side is a discarded winding portion having a winding length in the circumferential direction of the take-up shaft even when the shutter curtain is fully closed By inserting the end of the buffer member on the take-up shaft side between the take-up shaft and the throwing-off portion of the shutter curtain, the work of connecting this end to the take-up shaft can be omitted. Good.
[0016]
In addition, in the above, the shape and size of the buffer member are arbitrary, and an example thereof is that the buffer member is an elongated member that extends to the shutter curtain with a component in the opening / closing direction of the shutter curtain. In another example, the cushioning member is sized to cover the whole or substantially the entire surface of at least one of the shutter curtains. Still another example is that the cushioning members extend in the width direction of the shutter curtain. An assembly of a plurality of cushioning materials arranged in parallel in the opening / closing direction of the shutter curtain.
[0017]
When the buffer member is an elongated member extended to the shutter curtain with a component in the shutter curtain opening / closing direction, the elongated buffer member is a string-like member (both hollow and solid). Or a tape-like or belt-like shape having a width dimension in the width direction of the shutter curtain (including both hollow and solid). Further, only one buffer member or a plurality of buffer members may be provided in the width direction of the shutter curtain.
[0018]
If the cushioning member is an elongated member extending to the shutter curtain with a component in the opening / closing direction of the shutter curtain, the noise generated when the shutter curtain is taken up by the take-up shaft is reduced with a material made of less material. The effect that it can suppress by a member is acquired.
[0019]
In addition, the extending direction of the elongated buffer member may be any direction as long as it has a component in the opening / closing direction of the shutter curtain, for example, a direction that coincides with the opening / closing direction of the shutter curtain accurately or substantially accurately. Alternatively, it may be a direction having an inclination angle with respect to the opening / closing direction of the shutter curtain.
[0020]
When the buffer member is extended to the shutter curtain with an inclination angle with respect to the opening / closing direction of the shutter curtain as in the latter, when the buffer member is wound around the winding shaft together with the shutter curtain, the winding position of the buffer member is wound. Since the buffer member moves in the axial direction of the take-up shaft, unlike the case where the buffer member is taken up at the same position in the axial direction of the take-up shaft, the winding diameter of the shutter curtain on the take-up shaft can be prevented from increasing.
[0021]
Further, when the buffer member is an elongated member extended to the shutter curtain with a component in the shutter curtain opening / closing direction, the buffer member is disposed on both sides of the shutter curtain in the width direction out of the total length of the buffer member. A portion corresponding to the portion of the guide rail that guides the opening / closing movement of the shutter curtain may be accommodated inside the guide rail.
[0022]
In this case, when the total length of the buffer member is the same as or shorter than the length of the guide rail, the total length of the buffer member is stored inside the guide rail.
[0023]
Further, as long as the portion corresponding to the guide rail in the entire length of the buffer member is stored in the guide rail, the entire width direction of the buffer member orthogonal to the full length direction may be stored in the guide rail. A part of the buffer member in the width direction may be exposed from the guide rail.
[0024]
As described above, when the portion corresponding to the guide rail in the entire length of the buffer member is stored in the guide rail, at least the portion of the buffer member stored in the guide rail of the buffer member is externally provided by the guide rail. Since it can be protected from force, the noise suppressing effect by the buffer member can be expected over a long period of time, and even when the shutter curtain is closed, that portion of the buffer member does not appear outside, so the shutter curtain is good Can ensure a good appearance.
[0025]
As described above, when the portion corresponding to the guide rail portion that is arranged on both sides in the width direction of the shutter curtain and guides the opening and closing movement of the shutter curtain is accommodated in the guide rail in the entire length of the buffer member. The buffer member may be disposed on the indoor side surface of the two surfaces of the shutter curtain, may be disposed on the outdoor surface, or may be disposed on these two surfaces.
[0026]
Further, the end of the buffer member on the winding shaft side may be disposed between the winding shaft and the shutter curtain, and the buffer member is wound on the shutter curtain disposed on the winding shaft. An end on the shaft side may be further placed.
[0027]
According to the former, the cushioning member is caught between the winding shaft and the shutter curtain at the initial winding by the winding shaft of the shutter curtain that is fully closed. It is preferable to use the former because the buffer member can eliminate or reduce the direct contact between the shaft and the shutter curtain, and the generation of noise due to the contact between the winding shaft and the shutter curtain can be suppressed.
[0028]
In this way, the end of the buffer member on the winding shaft side is disposed between the winding shaft and the shutter curtain, and the winding shaft is initially wound by the winding shaft of the shutter curtain that is fully closed. When the buffer member is wound between the shutter curtain and the shutter curtain, the winding shaft may have an arbitrary structure. That is, the winding shaft may be formed of a cylindrical or solid member, a plurality of flange members arranged in the width direction of the shutter curtain, and a cylindrical member fitted to the outer periphery of these flange members; In addition, a plurality of flange members arranged in the width direction of the shutter curtain, and arranged closer to the axis of the take-up shaft than the surface of these flange members It may be formed including a connecting member for connecting the flange members to each other.
[0029]
A plurality of winding shafts are arranged in the width direction of the shutter curtain, and the flange members are arranged in the middle from the outer peripheral surface of these flange members to the axis of the winding shaft, and the flange members are connected to each other. In this case, the end of the winding shaft is disposed between the winding shaft and the shutter curtain at least at the position of the flange member. It is preferable to extend in the opening / closing direction of the shutter curtain.
[0030]
According to this, since the buffer member is caught between the flange member and the shutter curtain at the initial winding by the winding shaft of the shutter curtain that is fully closed, the flange member and the shutter curtain are in direct contact with each other. This can eliminate or reduce the occurrence of noise, and can suppress the generation of noise due to contact between the flange member and the shutter curtain.
[0031]
In the present invention described above, the shutter curtain may be formed of an arbitrary material. For example, the main part of the shutter curtain, that is, the shutter curtain main body may be formed by continuous connection of slats, or the continuous panel. May be formed by connecting a pipe and a link member, may be formed by a sheet, may be formed by a net, and may be a composite of at least two of these. It may be formed.
[0032]
The buffer member may be formed of an arbitrary material, and the material may be rubber, cloth, synthetic resin, paper, or a fiber mixed with different materials such as rubber. In addition, a composite material composed of a combination of a plurality of materials may be used.
[0033]
The effect of suppressing the generation of noise by the buffer member according to the present invention is particularly remarkable when the material forming the two surfaces of the shutter curtain facing each other when wound by the winding shaft is a metal. Therefore, it is preferable to dispose the buffer member on the metal material portion forming the two surfaces of the shutter curtain that face each other when wound by the winding shaft. The metal material portion may be a portion formed of slats, a portion formed of a panel, a portion formed of a pipe and a link, a portion formed of a net, or the like.
[0034]
The buffer member may be unwound as it is with the shutter curtain when the shutter curtain is unwound from the take-up shaft, or is provided with a take-up shaft for the buffer member for winding up the buffer member unwound with the shutter curtain. Thus, the buffer member is wound while the shutter curtain is being extended, and when the shutter curtain is wound around the shutter curtain winding shaft, the buffer member is extended from the buffer member winding shaft. Good. The buffer member winding shaft may be disposed at a position exposed to the outside, or may be housed in a shutter case or the like in which the shutter curtain winding shaft or the like is disposed. According to the latter, the shock-absorbing member and the take-up shaft for the shock-absorbing member are not exposed to the outside, and the appearance of the shutter device including the noise suppressing device constituted by these is the same as that of the shutter device not including the noise suppressing device. Can be.
[0035]
Further, according to the present invention, the closing movement of the shutter curtain from which the shutter curtain is drawn out from the winding shaft is made by a manual operation of a shutter device, a shutter device made by automatic driving means such as an opening / closing device, and the weight of the shutter curtain. It can be applied to any of the shutter devices. In addition, the present invention is applicable to any one of a shutter device in which the shutter curtain is wound around a winding shaft and a shutter device in which the shutter curtain is manually operated and automatic driving means such as a switch. it can. When the opening movement of the shutter curtain is performed manually, the winding shaft that performs this opening movement is rotated by the accumulation of the return spring in which the spring force is accumulated by the winding shaft that rotates when the shutter curtain is extended. It may be done using pressure.
[0036]
In addition, the present invention can be applied to any kind of shutter device, an example of which is a shutter device for an opening for opening and closing an opening such as a window or an entrance / exit with a shutter curtain, and another example is a fire device or the like. This is a shutter device for disaster prevention for forming a disaster prevention zone with a shutter curtain inside a structure such as a building or an underground shopping center when a disaster occurs.
[0037]
Further, the opening / closing movement direction of the shutter curtain of the shutter device to which the noise suppression device according to the present invention is applied may be the vertical direction, the left / right direction, or the horizontal direction, and at least one of these directions. And may be inclined.
[0038]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of the entire shutter device including the noise suppression device according to the present embodiment when the shutter curtain is closed.
[0039]
This shutter device is a shutter device for an opening for opening and closing an opening 11 that is an entrance / exit formed in a wall 10 that separates the indoor side and the outdoor side of the building from the shutter curtain 1. Yes. A horizontal winding shaft 2 is rotatably supported by the left and right brackets 3 on the upper wall of the opening 11, and an upper end portion, that is, an end portion on the winding shaft 2 side is coupled to the winding shaft 2. The left and right ends of the shutter curtain 1 are slidably inserted into the left and right guide rails 4 provided on the wall 10.
[0040]
Therefore, the shutter curtain 1 is unwound and wound by the winding shaft 2 for opening and closing the opening 11 by forward and reverse rotation of the winding shaft 2, and the opening and closing movement of the shutter curtain 1 is guided by the guide rail 4. It is done.
[0041]
In this embodiment, an opening / closing machine 5 consisting of a combination of a motor and a brake is attached to one of the left and right brackets 3 that support the winding shaft 2, and the forward / reverse rotational driving force from this opening / closing machine 5 is applied. The shutter curtain 1 is opened and closed in the vertical direction by being transmitted to the winding shaft 2 via the driving force transmitting means 6. However, the mechanism for moving the shutter curtain 1 to open and close is not limited to this. For example, a return spring by a coil spring is provided on the winding shaft 2, and the shutter curtain 1 wound on the winding shaft 2 is manually operated. When the actuator is pulled down and closed, the return spring is accumulated on the rotating winding shaft 2, and the shutter curtain 1 is opened and moved by the reverse rotation of the winding shaft 2 by applying a rising force to the shutter curtain 1 manually. In this case, the accumulated pressure of the return spring may be an auxiliary force for the opening movement.
[0042]
The winding shaft 2 and the left and right brackets 3 are incorporated in the shutter case 7.
[0043]
FIG. 1 is a view of the shutter curtain 1 in which the opening 11 formed in the wall 10 separating the indoor side and the outdoor side is fully closed as viewed from the indoor side, and FIG. 1 is a cross-sectional view taken along line S2-S2. As shown in FIG. 2, the shutter curtain 1 includes a shutter curtain main body 20 and a metal seat plate 21 connected to the lower end portion of the main body 20. The shutter curtain body 20 is formed by connecting a large number of metal slats 22 extending in the left-right direction that is the width direction of the shutter curtain 20 in the opening / closing direction of the shutter curtain 1. The slats 22 are connected to each other by rotatingly engaging curls 22A and 22B provided on the upper side and the lower side of each slat 22, and the slats 22 and the seat plate 21 at the lowermost stage are connected. The connection is formed in the curled portion 21C of the seat plate 21 having an inverted T-shaped cross section between the landing portion 21A and the rising portion 21B that are landed on the floor 12 of the opening portion 11, and the lower side portion of the slat 22 at the lowest stage. The curled portion 22B is engaged with the curled portion 22B in a freely rotatable manner.
[0044]
The two surfaces of the shutter curtain 1 that are exposed from the winding state when the shutter curtain 1 is unwound from the winding shaft 2 are the indoor surface 1A and the indoor surface 1B of the shutter curtain 1, Among the surfaces 1A and 1B, the buffer member 30 is disposed on the surface 1A on the indoor side. As shown in FIG. 1, the buffer member 30 is a string-like elongated member that linearly extends in the opening / closing direction of the shutter curtain 1. A plurality of buffer members 30 made of rubber, twisted fibers, or the like are provided in the width direction of the shutter curtain 1, and two in the embodiment of FIG. 1.
[0045]
As shown in FIG. 2, the upper end portion of the shutter curtain body 20 is coupled to the winding shaft 2 by a bolt 40 and a nut 41, and the upper end portion of each buffer member 30, in other words, in each buffer member 30. The end on the winding shaft 2 side is also coupled to the winding shaft 2 with a bolt 42 and a nut 43. The lower end portions of the respective buffer members 30 are also coupled to the rising portion 21 </ b> B of the seat plate 21 with bolts 44 and nuts 45. Thereby, each buffer member 30 is extended on the surface 1A on the indoor side of the shutter curtain 1 so as to coincide with the opening / closing direction of the shutter curtain 1 which is the vertical direction accurately or substantially accurately.
[0046]
The end of the buffer member 30 on the winding shaft 2 side by the bolt 42 and the nut 43 is coupled to the winding shaft 2 by placing the buffer member 30 between the winding shaft 2 and the shutter curtain 1. ing.
[0047]
A direction A in FIG. 2 is a rotation direction when the winding shaft 2 winds up the shutter curtain 1. FIG. 3 shows a state in which the winding shaft 2 is rotating in the direction A from the state of FIG. 2 to wind up the shutter curtain 1. When the shutter curtain 1 is wound around the winding shaft 2, the indoor surface 1A and the outdoor surface 1B of the shutter curtain 1 face each other on the outer periphery of the winding shaft 2, but these surfaces 1A and 1B Since the buffer member 30 is caught in between and the buffer member 30 disposed on the indoor surface 1A comes into contact with the outdoor surface 1B, the surfaces 1A and 1B are not in direct contact with each other or The shutter curtain 1 is wound around the take-up shaft 2 while there is almost no such state.
[0048]
For this reason, according to this embodiment, noise at the time of winding the shutter curtain 1 generated when the metal slats 22 forming the main body 20 of the shutter curtain 1 come into contact with each other is suppressed. The quietness of the device can be secured.
[0049]
Further, when the shutter curtain 1 is unwound from the take-up shaft 2, it performs fine movement, vibration, etc., and the metal slats 22 forming the body 20 of the shutter curtain 1 come into contact with each other to generate noise. When the shutter curtain 1 is extended, the generation of noise when the shutter curtain 1 is extended can be suppressed.
[0050]
Further, when the shutter curtain 1 is wound and unwound by the winding shaft 2, the contact between the metal slats 22 forming the main body 20 of the shutter curtain 1 is prevented by the buffer member 30. Scratches and the like can be prevented from occurring on the 22 and the slats 22 can be protected from damage.
[0051]
Further, since the buffer member 30 is a string-like elongated member extending in the opening / closing direction of the shutter curtain, it is formed of a material that generates less noise when the shutter curtain 1 is wound by the winding shaft 2. It can suppress by the buffer member 30, and the cost regarding the buffer member 30 can be reduced.
[0052]
Further, since the buffer member 30 of this embodiment is disposed on the indoor surface 1A of the shutter curtain 1, the buffer member 30 is caused by this external force on the outdoor surface 1B that often receives various external forces. Therefore, the buffer member 30 can be secured for a long period of time. Further, even if the shutter curtain 1 is extended from the winding shaft 2 to the fully closed position, the buffer member 30 does not appear on the outdoor surface 1B of the shutter curtain 1 that requires a good appearance, so that the commercial value of the shutter curtain 1 Can be made the same as the shutter curtain provided with the buffer member 30.
[0053]
Further, since the upper end portion of the buffer member 30 is coupled to the winding shaft 2 separately from the upper end portion of the shutter curtain 1 by the bolt 42 and the nut 43, the bolt 42, the nut 43, the bolt 44, and the nut 45 are removed. Thus, when it is necessary to replace the buffer member 30 due to a decrease in durability or the like, this replacement operation can be performed while the upper end portion of the shutter curtain 1 is coupled to the winding shaft 2. Furthermore, the operation | work which adds the buffer member 30 to the winding shaft 2 of the shutter apparatus already installed can also be performed easily.
[0054]
Further, as described above, the end of the buffer member 30 on the winding shaft side is disposed between the winding shaft 2 and the shutter curtain 1 and is coupled to the winding shaft 2, and thus is shown in FIG. 2. In the initial stage when the winding shaft 2 starts to wind the shutter curtain 1 from the fully closed state of the shutter curtain 1 to the state shown in FIG. 3, in other words, the shutter curtain 1 is wound around the winding shaft 2 by one turn. In the meantime, the buffer member 30 is wound between the winding shaft 2 and the shutter curtain 1. Accordingly, even at this time, the metal winding shaft 2 and the metal slat 22 forming the shutter curtain body 20 are not in direct contact with each other, and there is little noise generated when they come into contact with each other. Can be suppressed.
[0055]
Moreover, according to this embodiment, since the two buffer members 30 extending in the opening / closing direction of the shutter curtain 1 are arranged side by side in the width direction of the shutter curtain 1, these buffer members 30 are being closed or stopped. The inner shutter curtain 1 is prevented from shaking in the shutter curtain thickness direction and / or the shutter curtain width direction. For this reason, it is possible to prevent the contact sound between the shutter curtain 1 and the guide rail 4 that is generated when this shaking occurs, and the curled portions of the upper and lower slats 22 forming the main body 20 of the shutter curtain 1. The generation of noise due to contact between 22A and 22B when the shutter curtain 1 is shaken can also be prevented.
[0056]
Further, as shown by a two-dot chain line in FIG. 1, a manual operation is performed to wind the closed shutter curtain 1 around the take-up shaft 2 by providing a construction member 31 that spans the two buffer members 30. When elevating, the erection member 31 can be used as a handle member.
[0057]
The end portion on the winding shaft side of the buffer member 50 according to the embodiment of FIG. 4 is coupled to the winding shaft 2 by bolts 40 and nuts 41 together with the end portion on the winding shaft side of the shutter curtain 1.
[0058]
According to this embodiment, when the end of the shutter curtain 1 on the winding shaft side is connected to the winding shaft 2 with the bolt 40 and the nut 41, the end of the buffer member 50 on the winding shaft side is wound. Since they can be coupled to the shaft 2 at the same time, these coupling operations can be made common. Moreover, since the bolt 40 and the nut 41 are also used as a coupling tool to the winding shaft 2 of the buffer member 50, the coupling tool can be shared.
[0059]
Further, in this embodiment, the end of the buffer member 50 on the winding shaft side is disposed between the winding shaft 2 and the shutter curtain 1 and coupled to the winding shaft 2. At the initial stage when the winding shaft 2 starts to wind up the shutter curtain 1, the metallic winding shaft 2 and the metal slats 22 forming the shutter curtain body 20 are not in direct contact with each other.
[0060]
In the embodiment of FIG. 5, as in the embodiment of FIG. 1, two string-like buffer members 60 and 61 are arranged on the surface 1 </ b> A on the indoor side of the shutter curtain 1. The extending direction of 61 is a direction having a component in the opening / closing direction of the shutter curtain 1 as in the embodiment of FIG. 1 and a direction having a component in the width direction of the shutter curtain 1, that is, the buffering thereof. The members 60, 61 are extended on the indoor surface 1A of the shutter curtain 1 with an inclination angle with respect to the opening / closing direction of the shutter curtain 1, and the lower ends of the buffer members 60, 61 are close to or in contact with each other. The buffer members 60 and 61 are arranged on the shutter curtain 1 in a V shape as a whole.
[0061]
According to this embodiment, when the buffer members 60 and 61 are wound around the winding shaft 2 together with the shutter curtain 1, the winding positions of the buffer members 60 and 61 are wound in the axial direction of the winding shaft 2. Move with the take. Therefore, the same position in the axial direction of the winding shaft 2 in the slat 22 forming the shutter curtain body 20 is not sandwiched by the buffer members 60, 61 in the inner and outer directions of the winding shaft 2, so that the slat 22 is bent. Is generated and the buffer members 60 and 61 are wound, so that the entire winding diameter of the shutter curtain 1 on the winding shaft 2 is different from the case where the buffer member is wound at the same position in the axial direction of the winding shaft 2. Can be prevented from becoming large.
[0062]
The winding shaft 72 according to the embodiment of FIG. 6 includes a central shaft 73, flange members 74 that are rotatably provided on the central shaft 73 and arranged in the width direction of the shutter curtain 1, and these flange members. This connection formed by a bar that is disposed at a midpoint from the outer peripheral surface of 74 to the central shaft 73 and includes a connection member 75 that connects the flange members 74 to each other and extends in the width direction of the shutter curtain 1. A plurality of members 75 are provided in the circumferential direction of the central shaft 73. For this reason, a rotating body 76 that is rotatable about the central axis 73 is formed by a plurality of flange members 74 that are circular around the central axis 73 and a plurality of connecting members 75. A return spring 77 fitted on the outer periphery of the central shaft 73 is accommodated in the rotary body 76, and one end of the return spring 77 formed of a coil spring is coupled to the rotary body 76 and the other end is coupled to the central shaft 73. Has been.
[0063]
The end of the shutter curtain 1 on the winding shaft side is coupled to each flange member 74, and the buffer member 80, which is a string-like elongated member, is attached to the shutter curtain 1 at a position corresponding to each flange member 74. It extends in the opening and closing direction. The end of the buffer member 80 on the winding shaft side is inserted between the flange member 74 and the shutter curtain 1, and is coupled to the flange member 74 by a coupler 78, on the opposite side of the buffer member 80. The end is coupled to the seat plate of the shutter curtain 1.
[0064]
The shutter curtain 1 when fully opened is wound around the flange member 74 of the rotator 76, and when the rotator 76 rotates to feed out the shutter curtain 1, the return spring 77 is accumulated. The rotation for winding up the shutter curtain 1 is performed by using this accumulated pressure as an auxiliary force. Therefore, the manipulating operation force that must be applied to the shutter curtain 1 in order to cause the rotating body 76 to wind up the shutter curtain 1. Can be reduced.
[0065]
FIG. 6 shows a case where the shutter curtain 1 is fully closed. In this embodiment, the shutter curtain 1 is wound around the flange member 74, but the end on the winding shaft side of the buffer member 80 is disposed between the flange member 74 and the shutter curtain 1 and coupled to the flange member 74. Therefore, in the initial stage when the flange member 74 starts to wind up the shutter curtain 1 from the state of FIG. 6, the buffer member is buffered between the metal flange member 74 and the metal slat 22 forming the shutter curtain body 20. Since the member 80 is caught, the flange member 74 and the slat 22 are not in direct contact, and the connecting member 75 is disposed at an intermediate position from the outer peripheral surface of the flange member 74 to the central shaft 73. The slat 22 does not come into contact with the connecting member 75. For this reason, generation | occurrence | production of the noise at this time can be eliminated.
[0066]
Further, after that, since the buffer member 80 is wound together with the shutter curtain 1 between the two surfaces of the shutter curtain 1, generation of noise due to contact between the slats forming the shutter curtain body 20 is also prevented.
[0067]
The two buffer members 90 according to the embodiment of FIG. 7 extend in the opening / closing direction of the shutter curtain 1 and are provided on the shutter curtain 1, and of these buffer members 90, the shutter curtain 1 is opened / closed. Parts corresponding to the left and right guide rails 4 for guiding the movement are accommodated in the guide rails 4. This stored state is shown in FIG. 8, which is a sectional view taken along line S8-S8 of FIG.
[0068]
According to this embodiment, since the buffer member 90 is housed inside the guide rail 4 having a U-shaped cross section or a substantially U-shaped cross section, various shocks acting on the shutter curtain 1 and the guide rail 4 can be obtained. The buffer member 90 can be protected. Further, even if the shutter curtain 1 is fully closed, the buffer member 90 does not appear on the surface that can be seen from the outside of the shutter curtain 1, so that a good appearance of the shutter curtain 1 can be ensured.
[0069]
As shown in FIG. 8, the buffer member 90 of this embodiment is arranged on the outdoor surface 1B of the shutter curtain 1, but the buffer member 90 is placed on the indoor surface 1A of the shutter curtain 1. You may arrange.
[0070]
9, the portion corresponding to the guide rail 4 of the buffer member 100 can be accommodated in the guide rail 4 and the two buffer members 100 provided are the same as the embodiment of FIG. It is embodiment which can make the winding location by the winding shaft 2 about two places in the axial direction of the winding shaft 2 apart.
[0071]
The length of each buffer member 100 is at least twice the vertical length of the shutter curtain 1, in other words, the length of the shutter curtain 1 in the opening / closing direction. One end of these buffer members 100 is coupled to the winding shaft 2 at the winding shaft end of the shutter curtain 1 coupled to the winding shaft 2, or is coupled to the winding shaft 2. The shutter curtain 1 is coupled to the take-up shaft 2 beyond the end on the take-up shaft side. The coupling position is a position corresponding to the guide rail 4 in the axial direction of the take-up shaft 2, and the buffer member 100 is accommodated in the guide rail 4 from the coupling position, or the indoor side surface of the shutter curtain 1 or 9 is coupled to the seat plate 21 which is a front end member on the closing side of the shutter curtain 1 in FIG.
[0072]
The buffer member 100 is folded back in the opening direction of the shutter curtain 100 by the coupler 101, and the buffer member 100 reaches the inside of the shutter case 7 while being housed in the guide rail 4. The direction of the buffer member 100 is changed in the axial direction of the take-up shaft 2 by the first direction changing member 102, the direction is changed in the diameter direction of the take-up shaft 2 by the second direction changing member 103, and further the third direction. The direction is changed in the closing direction of the shutter curtain 100 by the conversion member 104. The other end of the buffer member 100 is coupled to the take-up shaft 2 at the end of the shutter curtain 1 that is joined to the take-up shaft 2 on the take-up shaft side, or the other end. The shutter curtain 1 coupled to the winding shaft 2 is coupled to the winding shaft 2 beyond the end on the winding shaft side.
[0073]
The first to third direction changing members 102 to 104 are rollers rotatably attached to the shutter curtain 7, and rotate when the shutter curtain 1 is wound and unwound by the winding shaft 2 to change the direction of the buffer member 100. To guide you.
[0074]
In this embodiment, when the shutter curtain 1 that has been fully closed is wound around the take-up shaft 2, each buffer member 100 winds together with the shutter curtain 1 at two locations separated in the axial direction of the take-up shaft 2. Will be taken. For this reason, it can prevent more effectively that two surfaces of the shutter curtain 1 which face at the time of this winding-up contact.
[0075]
Further, since the buffer member 100 is housed in the guide rail 4 and the shutter case 7 over the entire length, the buffer member 100 does not appear outside. Therefore, the buffer member is provided with the appearance of the entire shutter device. Can not be the same as normal shutter device.
[0076]
【The invention's effect】
According to the present invention, it is possible to suppress the generation of noise when the shutter curtain is wound.
[Brief description of the drawings]
FIG. 1 is a front view of an entire shutter device provided with a noise suppression device according to an embodiment of the present invention as viewed from the indoor side when the shutter curtain is closed.
2 is a cross-sectional view taken along line S2-S2 of FIG.
FIG. 3 is a cross-sectional view showing a state where the winding shaft rotates from the state of FIG. 2 and winds up the shutter curtain.
FIG. 4 is a view similar to FIG. 2 showing an embodiment in which the end of the buffer member on the winding shaft side is coupled to the winding shaft together with the end of the shutter curtain on the winding shaft side.
FIG. 5 is a view similar to FIG. 1 showing an embodiment in which the buffer member is extended with an inclination angle with respect to the opening / closing direction of the shutter curtain.
FIG. 6 is a front view of a winding shaft portion showing an embodiment when the winding shaft is formed to include a plurality of flange members and a connecting member that connects these flange members.
7 is a view similar to FIG. 1 showing an embodiment in which a buffer member is housed inside the guide rail. FIG.
8 is a cross-sectional view taken along line S8-S8 in FIG.
FIG. 9 is a front view showing an embodiment in which the buffer member housed in the guide rail can be wound up at two locations separated in the axial direction of the winding shaft.
[Explanation of symbols]
1 Shutter curtain
1A Indoor surface of shutter curtain
1B Outside surface of shutter curtain
2,72 Winding shaft
4 Guide rail
30, 50, 60, 61, 80, 90, 100 cushioning member
74 Flange member
75 connecting members

Claims (4)

In a take-up shutter device comprising a take-up shaft and a shutter curtain that opens and closes by winding and unwinding with the take-up shaft, the two surfaces of the shutter curtain that are exposed when the take-up shaft is unwound At least one surface of the shutter curtain is provided with an elongated buffer member that is in contact with the other surface and extends to the shutter curtain when the shutter curtain is wound around the winding shaft. The upper end portion of the buffer member is disposed between the winding shaft and the shutter curtain, and is coupled to the winding shaft separately from the upper end portion of the shutter curtain, and the lower end portion of the buffer member is coupled to the seat plate. noise suppression devices of the winding shutter apparatus characterized by being. The noise suppression device of the retractable shutter device according to claim 1, wherein the buffer member is extended to the shutter curtain with an inclination angle with respect to an opening / closing direction of the shutter curtain. Device noise suppression device. 3. The noise suppression device for a retractable shutter device according to claim 1, wherein the buffer member includes a plurality of buffer members in a width direction of the shutter curtain, and two buffer members among the buffer members are installation members. noise suppression devices of the winding shutter apparatus characterized by is bridged. The noise suppression device for a retractable shutter device according to any one of claims 1 to 3 , wherein the shutter curtain is arranged on both sides in the width direction of the shutter curtain in the entire length of the buffer member to guide the opening and closing movement of the shutter curtain. A noise suppression device for a retractable shutter device , wherein a portion corresponding to the guide rail portion is housed inside the guide rail .

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