JP6305034B2 - Folding shutter - Google Patents

Description

  The present invention relates to a folding shutter installed at an opening in a facility such as a shopping center or an underground shopping center.

  Conventionally, a folding shutter having a structure including a plurality of shutter members each having a rectangular outer shape and a plurality of hinges connecting long sides of the shutter members is known as a folding shutter (for example, a patent) Reference 1). In many folding shutters having such a structure, a plurality of shutter members are folded in a zigzag manner.

  FIG. 6 is a perspective view showing an example of a conventional folding shutter. The folding shutter 5 shown in FIG. 6 has a structure in which a shutter body 6 in which a plurality of shutter members 60 are connected as described below is attached to a rectangular frame 8. Each shutter member 60 includes upper and lower horizontal rods 61, left and right vertical rods 62, a center frame 63 that divides the center of a rectangular frame composed of these four ribs and divides the frame into two upper and lower regions, and And a transparent fitting panel 64 fitted in each partitioned area. And the vertical rod 62 of such a shutter member 60 is connected by the two types of hinges 71 and 72 mentioned later. In the folding shutter 5, the shutter main body 6 is mounted in a rectangular frame 8 including a hanging frame 81, a door frame 82, and upper and lower guide rails 83. The shutter body 6 is guided by these upper and lower guide rails 83 and opened and closed left and right. The example of FIG. 6 is an example of a one-way shutter, and a vertical rod 62 of the shutter member 60 at the left end in the drawing is attached to a suspension frame 81 as will be described later. The shutter body 6 is opened by being folded to the left in the drawing, and is closed by being pulled to the right and extended. Note that the folding shutter is not limited to a single-sided shutter, but the shutter body is free for both the left and right vertical frames, so that both folding and stretching are possible in both the left and right directions. Pull shutters are also known. Furthermore, a continuous shutter in which a plurality of shutter bodies are housed in a frame is also known.

  FIG. 7 shows a cross section of a conventional folding shutter perpendicular to the longitudinal direction (vertical direction) of the shutter member, in a state where the folding shutter is closed, that is, a state where a plurality of shutter members are extended to the left and right. FIG. FIG. 8 is a view showing a cross section at the same position as FIG. 7 in a state where the folding shutter is opened, that is, a state where a plurality of shutter members are folded. 6, 7, and 8, the folding shutters are schematically shown, and although the number and size of the shutter members are strictly different, these are shown in these drawings. Folding shutters are substantially equivalent. Therefore, in the following, the folding shutters shown in these drawings are not particularly distinguished, and the description will be continued below assuming that the reference numerals in the drawings are also common reference numerals.

  The vertical rod 62 of the shutter member 60 at one end in the shutter main body 6 is connected to the hanging rod 65 attached to the hanging frame 81 as shown in FIG. 6, and the vertical rod of the shutter member 60 at the other end. 62 is connected to a handle bar 66 provided with a handle 66a. When the folding shutter 5 is closed, the handle 66a is pulled toward the door holding frame 82, and the handle bar 66 is brought into contact with the door holding frame 82 as shown in FIG. When the folding shutter 5 is opened, the handle 66a is pulled toward the suspension frame 81, and the plurality of shutter members 60 are folded in the vicinity of the suspension frame 81 as shown in FIG. It is.

  Here, one of the two types of hinges 71 and 72 that connect the vertical rods 62 of the two shutter members 60 is out of the frame 8 when folded from a notch 83a provided in the upper guide rail 83. The exit hinge 71 exits. The other is a traveling hinge 72 that travels along the upper and lower guide rails 83 and is located in the frame 8 when folded. In this example, the escape hinges 71 and the traveling hinges 72 are alternately arranged in the opening / closing direction of the shutter body 6.

  The escape hinge 71 and the traveling hinge 72 are provided with two connecting shafts 701 to which the vertical rod 62 is connected. The vertical shaft 62 is provided with a bearing 601, and a connecting shaft 701 is rotatably fitted in the bearing 601. Further, in each of the hinges 71 and 72, the rotation of the vertical rod 62 is restricted so that the shutter member 60 does not move in the direction opposite to the folding direction from the substantially flat state shown in FIG. ing.

JP 2012-154136 A

  By the way, in recent years, as an installation form of the folding shutter, not only a form that opens and closes following a straight path as illustrated in FIGS. 6 to 8, but an installation that opens and closes following a curved path. Form may be required. For example, an installation form in which a folding shutter is installed in an opening opened over two surfaces across a corner of a store so as to be opened and closed in a curved shape along a path that is bent at the corner.

  In order to meet the above-mentioned demand, at least one hinge that passes in the vicinity of the curved path at the time of opening and closing is further from an open state in which it is opened in a substantially planar shape to a reversely folded state in which it is folded in a direction opposite to the folding direction. It is necessary to be a reverse folding hinge that connects the shutter member so as to be rotatable. As such a reverse folding hinge, for example, in the hinge shown in FIGS. 7 and 8, the two shutter members 60 are opened on a substantially plane by loosening the restriction on the rotation in the reverse direction. There is also a proposal that can move in the reverse direction from the state where it is placed. However, under the present circumstances, even with such a reverse folding hinge, the curvature radius of the curved path that the shutter member 60 follows when opening and closing is actually about 500 mm. On the other hand, further shortening of the curvature radius of the curved path is required from the viewpoint of effective use of the internal space of a store or the like.

  An object of the present invention is to provide a folding shutter in which the radius of curvature of the curved path that the shutter member follows when opening and closing is shortened.

The invention according to claim 1, which achieves the above object, includes a plurality of shutter members each having a rectangular shape, and a plurality of hinges connecting long sides of the shutter members, and passes through a curved path. In the folding shutter that is opened and closed along the opening and closing path, and the plurality of shutter members are folded in a zigzag manner when opened, the hinges that pass through a predetermined path portion including the curved path among the plurality of hinges are two shutter members Is a reverse folding hinge that is further pivotably connected from an open state opened in a substantially planar shape to a reverse folded state folded in a direction opposite to a predetermined folding direction. A first connecting portion in which the long side of one of the shutter members is rotatably connected, and a second connecting portion extending substantially parallel to the first connecting portion; A first hinge member provided physically and the second shutter member connected to the second connecting portion and extending substantially parallel to the first connecting portion, of the two shutter members And a second hinge member integrally provided with a third connecting portion that is rotatably connected to the long side of the second hinge member, and the second hinge member is in the opposite direction than the open state. The folding shutter is connected to the second connecting portion so as to be rotatable to a position rotated about 90 ° with the second connecting portion as a rotation center .

Further, the invention according to claim 2, in shutters folding of claim 1 Symbol placement, the plurality of hinges, the two shutter members, between the open state and that the folded state folded in said folding direction It is characterized by comprising an opening / closing hinge that is pivotably connected and the reverse folding hinge, wherein the reverse folding hinge and the opening / closing hinge are alternately arranged in the opening / closing direction of the shutter member.

According to a third aspect of the present invention, in the folding shutter according to the first or second aspect , the wall where the first hinge member is located between the first connecting portion and the second connecting portion. The first member main body having the first member main body, the first member main body, and the first connecting portion are connected, and the rotation of the one shutter member at the first connecting portion is opened in the opposite direction. The first restricting portion that is restricted to the state, the first member main body, and the second connecting portion are connected, and the second hinge member is rotated at the second connecting portion. A second restricting portion that restricts the direction until the open state, and the second hinge member is connected to the second connecting portion, and the second member. Connects the main body and the third connecting portion, and the front of the third connecting portion. The rotation of the other shutter member, characterized in that it has a third restricting portion for restricting up the open state for the reverse.
According to a fourth aspect of the present invention, in the folding shutter according to the third aspect of the present invention, the rotating direction of the second hinge member on the outer surface of the second connecting portion is separated from the second restricting portion. When the second hinge member rotates from the position to the open state in the folding direction, the second hinge member is locked with the second hinge member, and the second hinge member is approximately 90 ° in the opposite direction. A locking projection that locks with the second hinge member also protrudes in a direction intersecting with the rotation axis of the second hinge member even when the second hinge member rotates.

  Further, according to a fifth aspect of the present invention, in the folding shutter according to any one of the first to fourth aspects, in the opened state, the third connecting portion is the first connecting portion and the first connecting portion. It is characterized by being arranged in substantially the same plane as the two connecting portions.

  In the first aspect of the present invention, the second hinge member constituting the reverse folding hinge is connected to the second connecting portion so as to be rotatable in the reverse direction from the open state. Since the rotation angle of the second member position in the reverse direction can be arbitrarily set, the two shutter members connected by the reverse folding hinges are reversed at an arbitrary angle in the direction opposite to the folding direction. Folding is possible. In the first aspect of the invention, the hinge that passes through a predetermined path portion including the curved path when opening and closing is the reverse folding hinge. Therefore, according to the first aspect of the present invention, for example, the radius of curvature of the curved path is made smaller than that of a folding shutter or the like in which the restriction on the reverse movement is relaxed by the hinge shown in FIGS. It can be shortened.

Further, according to the invention described in claim 1, since the second hinge member is rotatable to a position approximately 90 ° rotated in the opposite direction than the opening state, the opposite direction of the shutter member The bending angle can be made approximately 90 °, and the radius of curvature can be further shortened.

According to the second aspect of the present invention, the reverse folding hinges and the open / close hinges are alternately arranged. Thereby, compared with the case where reverse folding hinges are arranged continuously, for example, the passage of the curved path and the folding of the spelling can be performed smoothly.

According to the third aspect of the present invention, the rotation range of the shutter member in the first connecting portion and the third connecting portion is suppressed in the reverse direction, and the rotation of the second hinge member in the second connecting portion is performed. By suppressing the moving range, folding and reverse folding of the shutter member can be realized while maintaining the connection strength at each connection portion.

  According to the fifth aspect of the present invention, in the open state, the third connecting portion is arranged in substantially the same plane as the first connecting portion and the second connecting portion. The dimension of the reverse folding hinge can be suppressed in the orthogonal direction.

It is a perspective view which shows an example of the folding shutter concerning embodiment of this invention. It is a figure which shows the cross section orthogonal to the longitudinal direction (up-down direction) of a shutter member of the folding shutter opened and closed via a curved path | route about both the time of opening and closing of this folding shutter. It is sectional drawing which shows the AA cross section in FIG. It is a figure which shows the cross section of the same position as FIG. 2 which shows the connection structure of the shutter member by a driving | running | working hinge. It is a figure which shows the cross section of the same position as FIG. 2 which shows the connection structure of the shutter member by the escape hinge as a reverse folding hinge. It is a perspective view which shows an example of the conventional folding shutter. It is a figure which shows the cross section orthogonal to the longitudinal direction (up-down direction) of the shutter member of the conventional folding shutter about the state which this folding shutter was closed, ie, the state where several shutter members were extended right and left. . It is a figure which shows the cross section of the same position as FIG. 7 about the state by which the folding shutter was opened, ie, the state in which the some shutter member was folded.

  A folding shutter according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing an example of a folding shutter according to an embodiment of the present invention. The folding shutter 1 shown in FIG. 1 has a structure in which a shutter body 2 having a plurality of shutter members 20 connected to each other is attached to a rectangular frame 4 as follows. Each shutter member 20 includes upper and lower horizontal fences 21, left and right vertical fences 22, a middle frame 23 that divides the center of a rectangular frame composed of these four fences and divides the inside of the frame into two upper and lower areas, and And a transparent fitting panel 24 fitted in each partitioned area. And the vertical rod 22 of such a shutter member 20 is connected by the two types of hinges 31 and 32 mentioned later. In the folding shutter 1, the shutter main body 2 is mounted in a frame 4 including a hanging frame 41, a door frame 42, and an upper guide rail 43. The guide rail 43 extends along an opening / closing path that passes through a curved path bent by approximately 90 ° with a radius of curvature of 100 mm. The shutter body 2 is suspended from the guide rail 43 and is opened and closed by being guided by the guide rail 43. No guide rail is provided on the floor side, and the lower side of the shutter body 2 is in a free state.

  FIG. 2 is a diagram showing a cross-section of the folding shutter that is opened and closed through a curved path, perpendicular to the longitudinal direction (vertical direction) of the shutter member, both when the folding shutter is opened and when it is closed. Here, when the folding shutter 1 is opened, it means a state in which a plurality of shutter members 20 constituting the folding shutter 1 are folded. Further, when the folding shutter 1 is closed, it means a state in which the plurality of shutter members 20 constituting the folding shutter 1 are extended through a curved path. In FIG. 2, a sectional view when the folding shutter 1 is closed is shown by a solid line around the curved path, and a sectional view when the folding shutter 1 is opened is shown by a broken line. In FIG. 2, the folding shutter is schematically shown. Strictly speaking, the number and size of the shutter members are different from those in FIG. 1, but the folding shutter shown in FIG. It is substantially equivalent to the folding shutter 1 shown in FIG. Therefore, in the following description, the folding shutter 1 shown in FIG. 1 and the folding shutter shown in FIG.

  The vertical rod 22 of the shutter member 20 at one end in the shutter body 2 is connected to the hanging rod 25 attached to the hanging frame 41 as shown in FIG. 1 and the vertical rod of the shutter member 20 at the other end. 22 is connected to a handle bar 26 provided with a handle 26a. When the folding shutter 1 is closed, the handle 26a is pulled toward the door holding frame 42, and the handle bar 26 is brought into contact with the door holding frame 42 as shown in FIGS. When the folding shutter 1 is opened, the handle 26a is pulled toward the suspension frame 41, and the plurality of shutter members 20 are folded in the vicinity of the suspension frame 41 as shown in FIG. It is.

  Here, one of the two types of hinges 31 and 32 that connect the vertical rods 22 of the two shutter members 20 is outside the frame 4 when folded from a notch (not shown) provided in the guide rail 43. The exit hinge 31 exits. The other is a traveling hinge 32 that travels along the guide rail 43 and is located in the frame 4 even when folded. In the present embodiment, the escape hinges 31 and the traveling hinges 32 are alternately arranged in the opening / closing direction of the shutter body 2. In the present embodiment, the shutter main body 2 is attached to the guide rail 43 by suspending the traveling hinge 32 from the guide rail 43 as described below.

  FIG. 3 is a cross-sectional view showing the AA cross section in FIG. 2. As shown in FIG. 3, the traveling hinge 32 enters the inside of the guide rail 43 beyond the upper side rail 21. Two guide rollers 32 b that are rotatable around a rotation shaft 32 a that is orthogonal to the longitudinal direction of the guide rail 43 are attached to the upper end of the traveling hinge 32. From each of the two inner walls of the guide rail 43 facing each other, a guide plate 43a that supports each guide roller 32b from below is projected. The traveling hinge 32 is suspended from the guide rail 43 with the two guide rollers 32b placed on the two guide plates 43a. When the folding shutter 1 is opened and closed, each guide roller 32 b travels on each guide plate 43 a, so that the shutter member 20 moves along the guide rail 43.

  Among the plurality of traveling hinges 32, one traveling hinge 32 positioned near the curved path when the folding shutter 1 is fully closed has a first one for suppressing fluttering of the shutter member 20 as shown in FIG. 1. One slide drop 32c is provided. A receiving surface 44 is provided on the floor surface at a position where the rod 32d of the first slide drop 32c is inserted when the floor is fully closed. When the first slide drop 32c is slid downward in the fully closed state and the rod 32d is inserted into the receiving floor 44, fluttering of the shutter member 20 when fully closed is suppressed.

  Further, as shown in FIG. 1 and FIG. 2, the floor near the suspension frame 41 is provided with a bracing 45 for suppressing fluttering of the shutter member 20 that is folded in a zigzag manner when fully opened. Yes. When fully opened, the lower end of the traveling hinge 32 that is folded and located on the outdoor side comes into contact with the swing stopper 45.

  Further, the pulling handle 26 is provided with a second slide drop 26 b for suppressing the fluttering of the shutter member 20 in combination with the above-described swing stopper 45. The backrest 45 is provided with a receiving base at a position where the rod of the second slide drop 26b is inserted when the shutter member 20 is folded in a zigzag shape when fully open. When fully opened, the second slide drop 26 b is slid downward, and the rod is inserted into the receiving surface of the swing stopper 45. Thus, in combination with the contact of the traveling hinge 32 with the swinging stopper 45, fluttering is suppressed so that the folded shutter member 20 does not jump out of the outdoor side, and the folded shutter member 20 returns. Is also suppressed.

  Next, the connection structure of the shutter member 20 by the traveling hinge 32 will be described. In the present embodiment, the traveling hinge 32 is an open / close hinge that couples the two shutter members 20 so as to be rotatable between a folded state folded in the folding direction and an open state opened in a substantially planar shape. ing. FIG. 4 is a view showing a cross section of the same position as FIG. FIG. 4A shows an open state in which the two shutter members 20 connected by the traveling hinge 32 are opened in a substantially planar shape. FIG. 4B shows a folded state in which the two shutter members 20 are folded in the folding direction indicated by the arrow B.

  The traveling hinge 32 connects two connecting shafts 301 to which the vertical shaft 22 is connected, a hinge main body 302 positioned between the two connecting shafts 301, and connects each connecting shaft 301 and the hinge main body 302 to each other. Two restricting portions 303 are provided to restrict the rotation of the shutter member 20 in the portion 301 in the direction opposite to the folding direction (arrow B direction) as described later. The traveling hinge 32 is formed by integrally forming two connecting shafts 301, a hinge body 302, and two restricting portions 303.

  The vertical shaft 22 is provided with a bearing 201, and a connecting shaft 301 is rotatably fitted to the bearing 201. The bearing 201 has a substantially cylindrical shape, and has a structure in which a peripheral wall is opened at an angle of approximately 90 ° around the central axis to be an opening. The restriction portion 303 passes through this opening. For this reason, the angular range of rotation of the shutter member 20 in each connecting shaft 301 is approximately 90 between a position where one edge of the opening abuts against the restricting portion 303 and a position where the other edge abuts against the restricting portion 303. Regulated to an angular range of °. As a result, each shutter member 20 has an angle of about 90 ° around the connecting shaft 301 between the open state shown in FIG. 4A and the folded state shown in FIG. Can be rotated.

  Next, the connection structure of the shutter member 20 by the escape hinge 31 will be described. In the present embodiment, the escape hinge 31 reversely connects the two shutter members so as to be further rotatable from an open state opened in a substantially planar shape to a reverse folded state folded in a direction opposite to the folding direction. It is a folding hinge. FIG. 5 is a diagram showing a cross-sectional view at the same position as FIG. 2, showing the connecting structure of the shutter member by the escape hinge as the reverse folding hinge. FIG. 5 (a) shows the open state, FIG. 5 (b) shows the folded state, and FIG. 5 (c) shows the reverse folded state. As shown in these drawings, the escape hinge 31 includes a first hinge member 311 and a second hinge member 312.

  The first hinge member 311 includes a first connecting shaft 311a (first connecting portion), a second connecting shaft 311b (second connecting portion), a first member body 311c, and a first restriction. The part 311d and the second restricting part 311e are integrally provided. The first connecting shaft 311a is rotatably fitted to the bearing 201 in the vertical shaft 22 of the right shutter member 20 in FIG. The second connecting shaft 311b is a shaft extending substantially parallel to the first connecting shaft 311a, and the second hinge member 312 is connected to the second connecting shaft 311b as described later. The first member main body 311c has a wall positioned between the first connecting shaft 311a and the second connecting shaft 311b, and partitions the surrounding space of each connecting shaft.

  The first restricting portion 311d connects the first member main body 311c and the first connecting shaft 311a and passes through an opening provided in the vertical rod 22. The first restricting portion 311d rotates the shutter member 20 approximately 90 ° around the first connecting shaft 311a between the first shutter position and the second shutter position as follows. Is restricted to rotation within the angle range. As shown in FIG. 5A, the first shutter position is such that one edge of the opening of the vertical rod 22 is in contact with the first restricting portion 311d, and the right shutter member 20 is the first connection. This is a position aligned with the shaft 311a and the second connecting shaft 311b in substantially the same plane. As shown in FIG. 5B, the second shutter position is such that the other edge of the opening abuts on the first restricting portion 311d, and the right shutter member 20 is in the folding direction indicated by the arrow B. It is a position folded approximately 90 °.

  The second restricting portion 311e connects the first member main body 311c and the second connecting shaft 311b, and an arrow B indicates the rotation of the second hinge member 312 on the second connecting shaft 311b. The folding direction is regulated as described later.

  The second hinge member 312 includes a third connecting shaft 312a, a second member main body 312b, and a third restricting portion 312c that are integrally provided. The third connecting shaft 312a is rotatably fitted to the bearing 201 in the vertical shaft 22 of the left shutter member 20 in FIG.

The second member main body 312b is connected to the second connecting shaft 311b and defines a space around the third connecting shaft 312a. This second member body 312b, bearings 312d is provided with a second connecting shaft 31 1 b are fitted to the rotatable. This bearing 312d has a substantially cylindrical shape, as well as the bearing 201 of the vertical shaft 22 described above, and has a structure in which the peripheral wall is opened at an angle of about 90 ° around the central axis and becomes an opening. The second restricting portion 311e of the first hinge member 311 passes through this opening. The second restricting portion 311e rotates the second hinge member 312 in an angle range of approximately 90 ° between a position where one edge of the opening of the bearing 312d abuts and a position where the other edge abuts. The rotation is restricted.

  The third restricting portion 312c connects the second member main body 312b and the third connecting shaft 312a and passes through an opening provided in the bearing 201 of the vertical rod 22. The third restricting portion 312c rotates the shutter member 20 approximately 90 ° around the third connecting shaft 312a between the first shutter position and the second shutter position as follows. Is restricted to rotation within the angle range. As shown in FIG. 5A, the first shutter position is such that one edge of the opening of the vertical rod 22 abuts on the third restricting portion 312e, and the left shutter member 20 is connected to the third connection. This is a position aligned with the shaft 312a and the second connecting shaft 311b in substantially the same plane. As shown in FIG. 5B, the second shutter position is such that the other edge of the opening abuts against the third restricting portion 312e, and the left shutter member 20 is in the folding direction indicated by the arrow B. It is a position folded approximately 90 °.

  Here, the above-described approximately 90 ° angle range in which the second hinge member 312 can be rotated by the restriction of the second restricting portion 311e is a range between the following two member positions. One member position is a member position when the two shutter members 20 are in the open state, as shown in FIG. The second hinge member 312 shown in FIG. 5B is also in this member position. And the other member position in said angle range is the position rotated about 90 degrees in the reverse direction which the arrow C shows from the member position at the time of an open state, as FIG.5 (c) shows. It has become. When the second hinge member 312 is thus rotated in the reverse direction, for example, as shown in FIG. 5C, the two shutter members 20 are reversely folded.

  With the escape hinge 31 described above, the two shutter members 20 are moved between the folded state shown in FIG. 5 (b) and the reverse folded state shown in FIG. 5 (c). It is connected so that it can rotate through the open state shown by (a). And in this embodiment, this escape hinge 31 is arrange | positioned in the position which passes the predetermined path | route part containing a curved path | route. Specifically, the escape hinges 31 and the traveling hinges 32 are alternately arranged in the opening / closing direction of the shutter member 20. Therefore, as shown in FIG. 2, the shutter member 20 can be reversely bent at an angle of up to about 90 ° at the connecting portion of the escape hinge 31 while passing through the curved path and the vicinity thereof. ing. In the present embodiment, by this reverse folding, the radius of curvature in the curved path can be ideally set to 0 mm. In this embodiment, the curvature radius is set to 100 mm in consideration of the guide roller 32b shown in FIG. 3 passing through the curved path. In any case, this radius of curvature is greatly shortened compared to the radius of curvature of about 500 mm realized by loosening the restriction on the reverse movement with the hinge shown in FIGS. 7 and 8, for example. It has become.

  Further, in the present embodiment, the second hinge member 312 can be rotated to a position rotated approximately 90 ° in the direction opposite to the folding direction as compared with the open state. Thereby, the curvature radius is further shortened compared with the case where the angle which can be rotated in this reverse direction is an angle smaller than 90 degrees, for example.

  In the present embodiment, the escape hinges 31 as the reverse folding hinges and the traveling hinges 32 as the open / close hinges are alternately arranged in the open / close direction. Thereby, compared with the case where reverse folding hinges are continuously arranged, the passage of the curved path and the folding of the spelling can be performed smoothly.

  In the present embodiment, the shutter member 20 and the first hinge member 311 are connected, the shutter member 20 and the second hinge member 312 are connected, and the first hinge member 311 and the second hinge member 312 are connected. As described above, the connection is performed by a combination of the connection shaft, the bearing, and the restriction portion. Then, the rotation range of the shutter member 20 on the first connecting shaft 311a and the third connecting shaft 312a is suppressed to the open state in the opposite direction, and the second hinge member 312 on the second connecting shaft 311b. The range of rotation is limited to the open state in the folding direction. Thereby, folding and reverse folding of the shutter member 20 are realized without lowering the connection strength between each connection shaft and the bearing.

  In the present embodiment, in the open state, as shown in FIG. 5A, the third connecting shaft 312a is substantially in the same plane as the first connecting shaft 311a and the second connecting shaft 311b. Lined up. Thereby, the dimension of the escape hinge 31 is suppressed in the direction orthogonal to the opening / closing direction of the folding shutter 1.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

  For example, in this embodiment, the folding shutter 1 as a one-way shutter is illustrated as one embodiment of the folding shutter according to the present invention. However, the folding shutter referred to in the present invention is not limited to the single-sided shutter. For example, the shutter body is free for both the left and right vertical frames, and folding and stretching are performed in either direction. Also, a double-drawing shutter that has become possible, or a continuous shutter in which a plurality of shutter bodies are housed in a frame may be used.

  Further, in the present embodiment, as an embodiment of the folding shutter according to the present invention, a lateral pulling type folding shutter 1 that is opened and closed in the horizontal direction is illustrated. However, the folding shutter referred to in the present invention is not limited to the horizontal pulling type, and may be an elevating type folding shutter that is opened and closed in the vertical direction, for example.

  Moreover, in this embodiment, the folding shutter 1 in which the guide rail is not provided on the floor surface side and the lower side of the shutter body 2 is in a free state is illustrated as an embodiment of the folding shutter according to the present invention. Yes. However, the folding shutter referred to in the present invention is not limited to this. For example, a folding shutter may be provided in which a guide rail is also provided on the floor surface and guided by two upper and lower guide rails.

  In the present embodiment, as an example of the opening / closing path according to the present invention, an opening / closing path passing through one curved path bent by approximately 90 ° is illustrated. However, the opening / closing path referred to in the present invention is not limited to this, and may be a path that passes through a curved path having a bending angle other than 90 °, for example, a plurality of curved paths such as a waveform path. It may be a route to do.

  Further, in the present embodiment, as an example of the shutter member according to the present invention, the shutter member 20 configured by inserting a transparent fitting panel 24 into a rectangular frame partitioned by an intermediate rail 23 is illustrated. However, the shutter member referred to in the present invention is not limited to this, and may be only a frame in which no panel is fitted, or may be a single-panel. The fitting panel fitted into the frame of the shutter member is not limited to the transparent panel, and may be a translucent or opaque panel.

  In the present embodiment, as an example of each of the first connecting portion, the second connecting portion, and the third connecting portion referred to in the present invention, the first connecting shaft 311a, the second connecting shaft 311b, Three shafts of three connecting shafts 312b are illustrated. However, each of the first connecting portion, the second connecting portion, and the third connecting portion referred to in the present invention is not limited to the shaft but may be a bearing. In this case, the shutter member is provided with a shaft that is fitted into the hinge-side bearing, and the second hinge member is provided with a shaft that is fitted into the bearing of the first hinge member.

  In the present embodiment, as an example of the second hinge member according to the present invention, the second hinge member 312 that can be rotated from the open state to a position rotated approximately 90 ° in the direction opposite to the folding direction is illustrated. Has been. However, the 2nd hinge member said to this invention is not restricted to this, The thing which can be rotated at an angle other than 90 degrees in the reverse direction from an open state may be sufficient.

  Moreover, in this embodiment, the escape hinge 31 and the traveling hinge 32 are illustrated as an example of each of the reverse folding hinge and the open / close hinge according to the present invention. However, the reverse folding hinge and the opening / closing hinge referred to in the present invention are not limited thereto. For example, the reverse folding hinge may be a traveling hinge and the opening / closing hinge may be an escape hinge. In this case, the bending direction of the curved path is the direction of bending in the direction opposite to the bending direction of the curved path in the present embodiment shown in FIG.

  Moreover, in this embodiment, the form by which the reverse folding hinge and the opening-and-closing hinge were alternately arranged is illustrated as one Embodiment of the folding shutter said to this invention. However, the folding shutter referred to in the present invention is not limited to this form. For example, the hinge from the handle side to the hinge a predetermined number before the curved path is a reverse folding hinge, and the other hinge on the hanging base side is an open / close hinge. The form etc. which became become may be sufficient.

DESCRIPTION OF SYMBOLS 1 Folding shutter 2 Shutter body 20 Shutter member 31 Escape hinge (reverse folding hinge)
32 Traveling hinge (open / close hinge)
311 1st hinge member 311a 1st connection shaft (1st connection part)
311b Second connecting shaft (second connecting portion)
311c 1st member main body 311d 1st control part 311e 2nd control part 312 2nd hinge member 312a 3rd connection shaft (3rd connection part)
312b Second member main body 312c Third restricting portion

Claims (5)

A plurality of shutter members each having a rectangular shape, and a plurality of hinges connecting long sides of the shutter members, and opened and closed along an open / close path passing through a curved path; In the folding shutter where the members are folded in a zigzag shape,
Among the plurality of hinges, a hinge that passes through a predetermined path portion including the curved path has two shutter members that are folded in a direction opposite to a predetermined folding direction from an open state in which the two shutter members are opened in a substantially planar shape. It is a reverse folding hinge that is further pivotably connected to the folded state,
The reverse folding hinge is
The first connecting part to which the long side of one of the two shutter members is rotatably connected and the second connecting part extending substantially parallel to the first connecting part are integrated. A first hinge member provided on
The third connecting portion is connected to the second connecting portion and extends substantially parallel to the first connecting portion so that the long side of the other shutter member of the two shutter members is rotatably connected. And a second hinge member integrally provided with the connecting portion,
The second hinge member is connected to the second connecting portion so as to be rotatable to a position rotated about 90 ° around the second connecting portion as a rotation center in the opposite direction from the open state. Folding shutter characterized by that. The plurality of hinges comprise two shutter members, an open / close hinge that rotatably connects between the folded state folded in the folding direction and the open state, and the reverse folding hinge,
It said reverse folding hinge and said closing hinge, folding shutter according to claim 1 Symbol mounting, characterized in that are arranged alternately in the closing direction of the shutter member. A first member main body having a wall located between the first connecting portion and the second connecting portion; and the first member main body and the first connecting portion. A first restricting portion for restricting rotation of the one shutter member at the first connecting portion to the open state in the opposite direction, the first member main body, and the second member. And a second restricting portion for restricting the rotation of the second hinge member in the second connecting portion by the open state in the folding direction,
The second hinge member connects the second member main body connected to the second connecting portion, the second member main body and the third connecting portion, and in the third connecting portion. the rotation of the other shutter member, folding shutter according to claim 1 or 2, characterized in that a, a third restriction portion for restricting up the open state for the reverse.   The second hinge member is rotated in the folding direction to the open state from a position away from the second restricting portion in the rotation direction of the second hinge member on the outer surface of the second connecting portion. When the second hinge member is engaged with the second hinge member, and when the second hinge member is rotated approximately 90 ° in the opposite direction, the engagement protrusion that is engaged with the second hinge member is The folding shutter according to claim 3, wherein the folding shutter protrudes in a direction intersecting with a rotation axis of the second hinge member.   5. The device according to claim 1, wherein, in the opened state, the third connecting portion is arranged in substantially the same plane as the first connecting portion and the second connecting portion. Folding shutter.

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