JP6035748B2 - Shutter device - Google Patents

Description

  The present invention relates to a shutter device having a system capable of winding a shutter curtain around a winding body or rolling down the shutter curtain from the winding body.

  Conventionally, a shutter curtain that extends in the left-right direction and can wind up a plurality of slats arranged side by side in the up-down direction, a winder that winds and unwinds the shutter curtain, and a drive mechanism that rotates the winder (Patent Documents 1 and 2). Connecting members (links) are attached to the left and right ends of each slat. The connecting members positioned above and below are connected to each other to form a linear body so that the slats are juxtaposed in the vertical direction. And each slat is pivotally supported by the link attached to both right and left both ends, and rotates independently. The shutter curtain can be changed between a closed state in which the slats are substantially upright (blind state) and an open state in which the slats are rotated so that the lower end of the slats moves to the outer surface side and a gap is formed between the slats. In the open state, the slat can be stopped at a fixed angle or stopped at a free angle.

  In Patent Document 1, the slat is captured by a capturing member provided separately from the shutter curtain, and the slat rotates as the capturing member rotates. Then, when the shutter curtain is rolled up in the state of being captured by the capturing member, the slat is rotated to a closed state and is in a blind state. Since the capture member and the slat are separate members and are driven by separate drive mechanisms, the slat can be stopped from rotating at an arbitrary position.

  In Patent Document 2, when the shutter curtain is rolled down, the slat is engaged with an operating body provided separately from the shutter curtain, and the slat can be rotated. Further, since the slats disengaged from the operating body are normally urged to stand upright, they are closed.

  By the way, it is desirable to adopt a shutter device having a light slat in consideration of power consumption, the size of the drive mechanism, and the like so that each slat can rotate independently. However, if the rigidity is reduced by reducing the weight, the increase in deflection, wind resistance, and crime prevention when the slat is in a blind state are reduced. Even when the slat is in a blind state, the rigidity of the slat is indispensable in order to achieve a shutter device that solves the above-described problems. Therefore, it is conceivable to adopt a hollow hollow structure, increase the vertical width of one slat, or increase the thickness as a slat having high rigidity even if the weight is reduced. However, increasing the width or increasing the thickness may cause the winding diameter to increase or the winding shape to become a beautiful circle when the shutter curtain is wound around the winding body.

  Patent Document 3 discloses a shutter curtain device in which the width of a slat is changed for every fixed number of sheets, and the slat is wound up neatly. However, in Patent Document 3, since the width of the slat is different for each winding, the four windings shown in FIG. 2 use four types of slats. Compared to the case where the slat width is different for each number of sheets, the creation cost and assembly cost of the parts can be reduced, but the type of parts and the assembly cost are also different by the number of times of winding. In addition, it is very difficult to employ a mechanism that rotates each slat independently. In Patent Document 3, the slat does not rotate independently.

JP 2005-61138 A JP 2008-8038 A JP-A-5-141164

  The present invention has been made in view of the above circumstances, and an object to be solved is to provide a shutter device in which a shutter curtain is wound up neatly and each slat can be rotated independently.

The structural feature of the invention according to claim 1 for solving the above-described problems is that a plurality of slats extending in the left-right direction and juxtaposed in the vertical direction are attached to both left and right ends of each slat, and A linear body composed of a plurality of connecting members that are connected in series so as to expand and contract by moving relative to each other by a certain length in the vertical direction, and a shutter curtain that can be wound up and covers an opening of a predetermined height;
A winder that winds up the shutter curtain with rotation in one direction and rolls down the shutter curtain with rotation in the reverse direction;
A drive mechanism for rotating the winding body;
With
The slat forms a gap between the slats adjacent in the vertical direction with the linear body extended, and fits between the slats adjacent in the vertical direction with the linear body contracted. Together
The slats that are a part of the plurality of slats, and that constitute a large slat region necessary to cover the opening in a state where the linear body is extended, the width in the vertical direction is constant,
Wherein at least some of the slats constituting the small slat area which is a remainder of the plurality of slats rather narrower than the slat width of the vertical direction constituting the large slats region,
The connecting member includes a plate-like main body portion having a thickness direction in the axial direction of the winding body, and does not overlap in the axial direction when the shutter curtain is wound on the winding body and in the radial direction. In order to limit the movement in the radial direction by abutting between the connecting members adjacent in the radial direction so as to be laminated, the winding body of each of the winding bodies from the both ends in the radial direction of the winding body, respectively. And having a plate-like projecting portion projecting in the axial direction .

Further, the structural feature of the invention according to claim 2 is that in claim 1, the outer shape of the winding body is substantially cylindrical,
The slat has a shape swelled on the outer surface side of the opening,
The curvature in the vertical direction of the slat constituting the small slat region is approximately the same as the curvature of the outer periphery of the winding body, and the curvature in the vertical direction of the slat constituting the large slat region constitutes the large slat region. And having a curvature at an intermediate position when the slat is wound by the winder.

  In the invention which concerns on Claim 1, since a large slat area | region covers an opening part in the state which the linear body extended, the small slat area | region is arrange | positioned above a shutter curtain. The slats in the small slat region are narrower in the vertical direction than the slats in the large slat region. Therefore, the slat on the side close to the winding body has a narrow vertical width. And since the slat which comprises the wide large slat area | region is wound around the circumference | surroundings after the small slat area | region is wound up, it arrange | positions in the position where the diameter of winding becomes large. Therefore, the shutter curtain can be wound up neatly by disposing a slat having a desired width for each part.

  Here, in a state where the linear body is extended and a gap is generated between the slats, the opening is covered only by the large slat region, which is excellent in aesthetics. Further, since the interval between adjacent slats is constant in the large slat region, it is possible to rotate the slats to the open state at any time even when the shutter curtain is partially opened. The slat opening / closing mechanism will be described. Since the member for rotating the slat is configured not to move vertically regardless of the movement of the shutter curtain, the slat located at the opening and facing the outside can be selectively engaged. The structure which becomes possible to open and close by is adopted. In this mechanism, in order to facilitate alignment with the slats, the portions that engage with the slats are arranged in accordance with the adjacent intervals of the slats. Therefore, even in a state where the opening / closing operation is performed with respect to the largest number of slats (a state where the lower end of the shutter curtain reaches the lower end of the opening and a gap is generated between all the slats), regardless of the position of the shutter curtain. The slats can be opened and closed. Therefore, as the slats constituting the large slat region, the largest number of slats are opened and closed. “The state where the lower end of the shutter curtain reaches the lower end of the opening and there is a gap between all the slats” About slat widths are aligned.

  In the invention according to claim 2, the winding body has a substantially cylindrical shape, the slats swell outward, and the curvature of the slats in the small slat region in the vertical direction is approximately the same as the curvature of the outer periphery of the winding body. Thus, the small slat region can be wound up neatly by first winding the small slat region around the winding body. And the curvature of the up-down direction of the slat of a large slat area | region is made into the curvature wound up to the winding body by the middle, and a large slat area | region area | region can be wound up around a winding body neatly.

  Moreover, each slat can be made rigid by making it swell to the outer surface side. Here, the small slat region is narrower in the vertical direction than the large slat region, and it seems that the rigidity is low considering only the width, but since the curvature is set large in the small slat region, the large slat region The rigidity derived from the curvature can be higher than that of the slat. Therefore, the difference in rigidity between the slats constituting the small slat region and the large slat region can be reduced by the combination of the factor for increasing the rigidity and the factor for decreasing the rigidity.

Furthermore, in the invention which concerns on Claim 1 , the connection member each attached to the right-and-left both ends of a slat has a protrusion part. The protrusion part protrudes from the both ends of the winding body of the main body part in the axial direction of the winding body. Therefore, when the slat is wound around the winding body, the connecting members wound together come into contact with each other at the protruding portions of the connecting members arranged in the radial direction, so that the connecting members can be wound up neatly based on the position of the connecting member. . Therefore, since it is possible to suppress the occurrence of an unexpected overlap in the axial direction of the winding body between the connecting members when the shutter curtain is wound, the shutter curtain being wound is excellent in aesthetics and has an unexpected overlap. When this occurs, the winding diameter is reduced by that amount, and the length for winding the shutter curtain is shortened, and the position of the shutter curtain is changed by the corresponding length. Accordingly, the shutter curtain cannot be wound at the desired height unless it can be wound up neatly.

It is a front view of the shutter device according to the present embodiment. It is explanatory drawing which shows a part of back surface of the shutter apparatus which concerns on this embodiment. It is a front view of the link used with the shutter device concerning this embodiment. It is a reverse view of the one side of the left-right direction of the state where the resin cap and the link were attached to one slat used with the shutter device concerning this embodiment. It is AA sectional drawing of FIG. It is a cross-sectional view of a slat used in the shutter device according to the present embodiment. It is a transverse cross section inside a horizontal frame which shows the state where the shutter curtain of the shutter device concerning this embodiment was wound up. It is sectional drawing of the state with which the slat used with the shutter apparatus which concerns on this embodiment was continued. It is sectional drawing of the state which the slat used with the shutter apparatus which concerns on this embodiment has fitted continuously.

  Embodiments of the present invention will be specifically described below with reference to the drawings. In order to avoid complication, some hatching may be omitted in the drawings. FIG. 1 schematically shows a front view of a shutter device installed on a structure so as to open and close an opening of a structure such as a building. The shutter device includes a shutter curtain 21 formed by juxtaposing a plurality of slats 1 along the vertical direction, a winding body 22 that winds up the shutter curtain 21, and main elements of a drive mechanism that rotates the winding body 22. And a horizontal frame 24 that rotatably holds the winding body 22, and two guide rails 25 provided on both sides of the shutter curtain 21. The shutter device is provided with a switch (not shown) for controlling the motor 23. When the motor 23 is driven by the switch and the winding body 2 rotates in one direction, the shutter curtain 21 is wound around the winding body 22. When the motor 23 is reversed by the switch and the winding body 22 rotates in the reverse direction, the shutter curtain wound around the winding body 22 is unwound. The guide rail 25 regulates the movement of the end portion of the shutter curtain 21 in the front-rear direction and guides the raising and lowering of the shutter curtain. The slat 1 extends between the two guide rails 25 along the left-right direction (X direction). FIG. 1 is a schematic diagram only, and the number of slats 1 is not limited to FIG. As shown in FIG. 1, chain-like linear bodies 26 are respectively provided on the left and right sides of the shutter curtain 21. The linear body 26 is a member in which a plurality of links (connection members) 4 are connected in series. The links 4 are provided at both ends corresponding to each of the plurality of slats 1 and can move integrally in the vertical direction. That is, the linear body 26 connects the end portions of the slats 1 adjacent in the vertical direction (arrow Y direction) of the shutter device, and the link 4 constituting the linear body 26 moves relatively along the vertical direction. It can be expanded and contracted.

  FIG. 2 shows the back side (inner side) of the shutter curtain 21. The shutter curtain 21 includes a slat 1, resin caps 3 attached to the left and right ends of each slat 1, and links 4 attached to the left and right ends of the slat 1 via the resin caps 3. A linear body 26 is formed by connecting the links 4 in a chain shape.

  The slat 1 has an arc shape that is elongated in the left-right direction and gradually protrudes toward the outer surface side toward the center in the up-down direction. The resin cap 3 has the same length corresponding to the length in the vertical direction of the slat 1 to be attached, and has an arc shape similar to that of the slat 1 in which the outer surface side gradually protrudes toward the center in the vertical direction. Yes. The resin cap 3 includes a main body portion 31 fixed to the end portion of the slat 1, a boss portion 32 protruding from the main body portion 31 toward the outer side in the left-right direction (link 4), and a link 4 further from the boss portion 32. And a pin 33 that is inserted into an engagement hole 42 of the link 4 to be described later. The boss portion 32 has a cross section perpendicular to the left-right direction larger than the engagement hole 42 into which the pin 33 is inserted, and further, the boss portion 32 is close to the engagement hole 42 in a state where the pin 33 is inserted into the engagement hole 42. The size of the enlarged portion 411 of the hole 41 is narrowed from below.

  The link 4 has a length corresponding to the length in the vertical direction of the slat 1 to be attached, and has an arc shape that gradually protrudes to the outer surface side toward the center in the vertical direction. FIG. 3 is a front view of the link 4 in a state where the resin cap 3 and the link 4 are attached to the slat 1 viewed from the outside in the left-right direction. FIG. 4 is a view of a part of one side of the slat 1 in a state where the resin cap 3 and the link 4 are attached as seen from the back side. 5 is a cross-sectional view taken along the line AA in FIG. As shown in FIGS. 3 to 5, the link 4 protrudes from the main body 40, the long hole 41, the engagement hole 42, the long hole insertion part 43, and the thickness direction in the left-right direction (the axial direction of the winding body 22). Part 44. The long hole 41 is a hole that is elongated in the vertical direction and opened in the left-right direction above the main body 40, and has an enlarged portion 411 that is large on the lower side and larger than the other openings. The engagement hole 42 is opened below the elongated hole 41 adjacent to the enlarged portion 411 of the elongated hole 41, and the pin 33 of the resin cap 3 is inserted therein. The long hole insertion portion 43 is located below the main body portion 40 and has a root portion 431 and a bevel portion 432. The base portion 431 has a diameter that can be inserted and removed from anywhere in the entire long hole 41, and slightly protrudes in the left-right direction opposite to the slat 1 and the resin cap 3 (outside in the left-right direction). The bevel 432 is located on the outer side in the left-right direction from the base 431 and has a flat shape with a diameter larger than the diameter of the base 431. The diameter of the bevel 432 is substantially the same as that of the enlarged portion 411 of the elongated hole 41, and the portion other than the enlarged portion 411 cannot be inserted into and removed from the elongated hole 41, and can be inserted into and removed from the enlarged portion 411. Since the base portion 431 is sized so that the base portion 431 can be inserted into and removed from any of the long holes 41 after the bevel portion 432 is inserted from the enlarged portion 411, the long hole 41 can freely move in the vertical direction. it can. The linear body 26 extends and contracts in the vertical direction as long as the base portion 431 can move in the vertical direction by attaching the elongated hole 41 of the link 4 connected in a chain shape.

  The projecting portions 44 project toward the slat 1 (resin cap 3) side from the outer surface side and inner both ends of the central portion in the vertical direction of the main body portion 40. When the protrusion 44 is viewed from the outer surface side and the inner side, it has an elongated rectangular shape in the up-down direction, and is a shape that is gently bent outward in the up-down direction.

  The link 4 is connected by inserting the bevel portion 432 of the long hole insertion portion 43 toward the outer side in the left-right direction in the enlarged portion 411 of the long hole 41 of another link 4 positioned below the link 4. Then, the pin 33 of the resin cap 3 is inserted into the engagement hole 42 outward in the left-right direction with the elongated hole insertion portion 43 moved upward in the elongated hole 41. A groove (not shown) is formed on the entire tip of the pin 33, and a C-ring (not shown) is fitted into the pin 33 inserted into the engagement hole 42. When the pin 33 is inserted into the engagement hole 42, the opening of the enlarged portion 411 of the long hole 41 is narrowed. Further, since the lower end portion 45 of the link 4 contacts the boss portion 32, the link 4 cannot move further downward. As a result, the elongated hole insertion portion 43 cannot be removed from the elongated hole 41 because the umbrella portion 432 cannot move to the enlarged portion 411 and the enlarged portion 411 also has an opening.

  As shown in FIG. 6, the slat 1 used in the shutter device of the present embodiment uses two types of slats 1 </ b> A and slats 1 </ b> B having different vertical widths. The vertical width (H1) of the slat 1A is narrower (H1 <H2) than the vertical width (H2) of the slat 1B, and the vertical curvature is large. The winding body 22 around which the slat 1 is wound has a substantially cylindrical shape. The slat 1 </ b> A has a curvature similar to that of the outer periphery of the winding body 22. As shown in FIG. 7, the slat 1 </ b> B has a curvature of the middle P of the minimum diameter and the maximum diameter when the shutter curtain 21 is wound. The slats 1A are arranged above the plurality of slats 1 constituting the shutter curtain 21 (six equivalents in FIG. 7), and constitute a small slat region. The slat 1B is disposed in the remaining part (large slat region). The length of the small slat region corresponds to a length that makes one round around the winding body 22.

  FIG. 8 is a schematic view of the slat 1 with the linear body 26 extended, and FIG. 9 is a schematic view of the slat 1 with the linear body 26 contracted. As shown in FIGS. 8 and 9, when the linear body 26 is contracted, the adjacent slats 1 are fitted with each other without backlash, and the slats 1 are compared with the case where the linear body 26 is extended. Clogged vertically. The state in which all the slats 1 are fitted is the fully closed state of the shutter curtain 21, and the slats 1A and slats 1B cover the openings. When a part of the shutter curtain 21 in the fully closed state (small slat region) is wound up, the slats 1 are completely disengaged, and the slats 1 are in the vertical direction compared to the case where they are engaged. Leave at. In this state, the slats 1B constituting the large slat region can be independently rotated.

  As a method of rotating the slat 1B, a conventional technique can be used. The number of slats 1A and slats 1B is adjusted to each opening so that the small slat region is wound and the large slat region covers the opening without the seat plate 27 attached to the lower end of the shutter curtain 21 floating. By setting the pitch between the slats, the slat 1B can be set in a blind state by the method disclosed in Patent Document 1. For example, a linear body 26 corresponding to a part of the slat 1A constituting the small slat region positioned on the slats 1B constituting the large slat region in a closed state in which all the slats 1B are fitted to each other. When adjusted to be in an extended state, the slat 1A can be opened and closed with respect to the upper portion of the large slat region. The shutter device can also adjust the opening / closing of the slat 1A in the upper part of the large slat region to the slat 1B in the small slat region. The reason for adopting a configuration that opens and closes only the slat 1A constituting the small slat region while avoiding the large slat region is that when the slats 1A and slats 1B having different widths are mixed and opened, the appearance is not refreshed. Therefore, when the aesthetic appearance is not a problem, the slat 1 including the slat 1B can be opened and closed instead of opening and closing only the slat 1A.

  In the shutter device of the present embodiment, the slat 1 that is initially wound around the winding body 22 is the slat 1A in the small slat region, and the slat 1B in the large slat region is wound after the small slat region is wound. It is done. Since the two types of slats 1 having different vertical widths are arranged in accordance with changes in the winding diameter depending on the winding amount, the shutter curtain 21 can be wound up neatly. The slats 1 constituting the small slat region and the large slat region both have a shape in which the central portion in the vertical direction swells to the outer surface side, and the curvature of the slat 1A in the small slat region is larger. When the winding body 22 is wound, the curvature decreases as the winding diameter gradually increases. Therefore, the slat 1A in the small slat region having a large curvature is wound first, and then the slat 1B in the large slat region. Is wound up, so that the slat 1 is wound up neatly. Further, since the curvature of the slat 1A in the small slat region is almost the same as the curvature of the outer periphery of the winding body 22, it can be wound up neatly from the beginning. Since the curvature of the slat 1B in the large slat region is a curvature that is wound around the winding body 22 in the middle, the large slat region portion can also be wound up neatly on the winding body 22.

  Further, in the state where the linear body 26 that can rotate the slat 1 is extended, the slat 1B in the large slat region covers the opening, so that the slat 1B can be rotated by using the conventional technique of rotating one kind of slat. Move between the closed and open states. Further, since it is the slat 1B in the large slat region that covers the opening in a state where the linear body 26 is extended, most of the slats 1 are the slats 1B in the large slat region. That is, since many wide slats can be installed, the number of used sheets can be reduced, and the number of assembling steps and materials can be reduced. When the vertical width of the opening is narrow, the number of slats itself is small, not limited to the large slat region and the small slat region.

  And since each slat 1 is the shape swelled to the outer surface side, its rigidity is high. The slat 1A in the small slat region has a narrower vertical width than the slat 1B in the large slat region, but has a curvature larger than that of the slat 1B, so that it can ensure the same rigidity as the slat 1B in the large slat region.

  In addition, the links 4 respectively attached to the left and right ends of the slat 1 are provided with protruding portions 44. The projecting portions 44 project from both ends in the radial direction of the winding body 22 of the main body portion 40 toward the axial direction of the winding body 22. Therefore, when the slat 1 is wound around the winding body 22, the links 4 wound together come into contact with the protruding portions 44 of the other links 4 arranged in the radial direction and do not overlap in the axial direction. That is, when the shutter curtain 21 is wound up, not only the slat 1 but also the link 4 can be taken up together with the slat 1 cleanly. Moreover, since it is wound up neatly, when the shutter curtain 21 is rolled down, the link 4 can be released without being caught between the links 4.

(Other embodiments)
The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment. For example, although the slat 1 shown in FIG. 6 has a solid shape, a hollow shape or a slat whose inside is not a cavity can be used. Further, the resin caps 3 and 6 are members that rotate integrally with the slats 1 to suppress the hit sound between the metal slats 1 and to avoid the slats 1 coming into contact with the guide rails 25. It can also be used as a member that exhibits a function. Moreover, you may employ | adopt the shutter curtain in which a resin cap is not attached to the both ends of the slat 1. FIG.

1: slat, 1A: slat (small slat region),
1B: Slat (large slat region),
21: Shutter curtain, 22: Winding body, 23: Motor, 24: Horizontal frame,
25: Guide rail, 26: Linear body,
3, 6: Resin cap 31, 61: Main body 32, 62: Boss
34: Locking pin 33, 63: Support part,
4: Link, 41: Long hole, 411: Enlarged part, 42: Engagement hole (engagement part),
43: long hole insertion part, 431: root part, 432: umbrella part, 44: protrusion part.

Claims (2)

A plurality of slats extending in the left-right direction and arranged in parallel in the up-down direction, and a plurality of slats attached to the left and right ends of each slat and connected in series so as to expand and contract relative to each other by a certain length in the up-down direction A shutter curtain that covers the opening of a predetermined height that can be wound, and a linear body made of a connecting member;
A winder that winds up the shutter curtain with rotation in one direction and rolls down the shutter curtain with rotation in the reverse direction;
A drive mechanism for rotating the winding body;
With
The slat forms a gap between the slats adjacent in the vertical direction with the linear body extended, and fits between the slats adjacent in the vertical direction with the linear body contracted. Together
The slats that are a part of the plurality of slats, and that constitute a large slat region necessary to cover the opening in a state where the linear body is extended, the width in the vertical direction is constant,
Wherein at least some of the slats constituting the small slat area which is a remainder of the plurality of slats rather narrower than the slat width of the vertical direction constituting the large slats region,
The connecting member includes a plate-like main body portion having a thickness direction in the axial direction of the winding body, and does not overlap in the axial direction when the shutter curtain is wound on the winding body and in the radial direction. In order to limit the movement in the radial direction by abutting between the connecting members adjacent in the radial direction so as to be laminated, the winding body of each of the winding bodies from the both ends in the radial direction of the winding body, respectively. A shutter device having a plate-like protruding portion protruding in an axial direction . The outer shape of the winding body is substantially cylindrical,
The slat has a swelled shape on the outer surface side of the opening,
The vertical curvature of the slat constituting the small slat region is approximately the same as the curvature of the outer periphery of the winding body, and the vertical curvature of the slat constituting the large slat region constitutes the large slat region. The shutter device according to claim 1, wherein the shutter device has a curvature at a middle portion when the slat is wound by the winding body.

Images