JP5301227B2 - Screen type shutter device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a screen-type shutter system which can simplify the shape and structure of an nondeflection member to be provided in a shutter curtain. <P>SOLUTION: A hard rod-like member 51, which is a nondeflection member ends of which are slidably inserted into guide rails 31 as left and right guide members, is provided in a screen 50 in a shutter curtain 30, which closes a part between an elevator and an elevator hall by downward closing movement. The length of the rod-like member 51 housed in a bag part 52 in the screen 50 is larger than the width of an opening in an opening part 6, as a door way for an elevator, provided between the elevator hall and a door 7 for the elevator. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a screen-type shutter device in which at least a part of a shutter curtain is formed of a screen. For example, a shutter device for disaster prevention for forming a disaster prevention area when a disaster such as a fire occurs, or an opening such as a doorway of a building The present invention can be used for an opening shutter device for opening and closing a portion.

  The shutter curtain, which can be opened and closed, is opened and closed by the guide rails arranged on both sides of the curtain width direction perpendicular to the vertical direction that is the opening and closing movement direction of the shutter curtain. There is a disaster prevention shutter device that can form a disaster prevention section inside a building or the like by providing the property and smoke shielding properties and closing and moving the shutter curtain when a disaster such as a fire occurs. Moreover, in this disaster prevention shutter device, there is one in which all or almost the entire shutter curtain is formed of a screen having fire resistance and other disaster prevention properties.

In the screen type disaster prevention shutter device shown in Patent Document 1 below, the shutter curtain is formed by a plurality of screens arranged in parallel in the opening / closing movement direction of the shutter curtain, and two adjacent screens are spaced apart from each other. The connecting members are connected to each other by a connecting member, and insertion members that are slidably inserted into the guide rails are attached to both ends of the connecting member extending in the left-right direction, which is the curtain width direction. According to this, even if the shutter curtain receives wind pressure in the event of a fire, the connecting member and the insertion member form a bending prevention member that prevents the screen shutter curtain from bending in the curtain thickness direction. , It is possible to prevent the gap between the seat plate that forms the front end of the shutter curtain and the floor, or the curtain width end of the shutter curtain and the end of the deflection preventing member are pulled out from the guide rail. Can be prevented.
Japanese Patent Laid-Open No. 10-258134 (FIGS. 1 and 2, paragraph number 0032, paragraph number 0060)

  However, since the deflection preventing member in the above-described conventional apparatus is provided on the shutter curtain to connect two adjacent screens with a gap therebetween, this shape and structure are complicated, and therefore the manufacture and the shutter curtain are difficult. It takes a lot of work to install the unit.

  An object of the present invention is to provide a screen type shutter device that can simplify the shape and structure of a deflection preventing member provided in a shutter curtain.

  In the screen type shutter device according to the present invention, the shutter curtain that can be opened and closed is guided by guide members disposed on both sides of the curtain width direction orthogonal to the opening and closing movement direction, and at least a part of the shutter curtain is provided. Bending prevention that is formed of a screen and extends into the shutter curtain in the curtain width direction and the end portion is slidably inserted into the guide member to prevent the shutter curtain from bending in the curtain thickness direction. In the screen type shutter device provided with a member, the bend prevention member is disposed in a portion of the screen having continuity in the opening / closing movement direction of the shutter curtain. It is.

  According to this screen type shutter device, the deflection preventing member is disposed at a portion of the screen that forms at least a part of the shutter curtain and has continuity in the opening / closing movement direction of the shutter curtain. It is not necessary for the prevention member to have a function for connecting two screens arranged adjacent to each other in the opening / closing movement direction of the shutter curtain with a gap therebetween. For this reason, the shape and structure of the bending prevention member can be simplified. For example, the bending prevention member can be a simple rod or flat bar made of metal or synthetic resin, a hard bar member such as a wire, or the like. It can be formed.

  Note that the portion of the screen having the continuity in the opening / closing movement direction of the shutter curtain, which is provided with a deflection preventing member, may be a portion formed by a single screen, or two pieces arranged in parallel. It may be a portion formed by screens and these screens joined by sewing, adhesion, welding or the like. This combination may be made for two screens arranged side by side in the opening / closing movement direction of the shutter curtain, or may be made for two screens arranged side by side in the curtain width direction. It may be made about three or more screens arranged in parallel in the opening / closing movement direction and the curtain width direction.

  Further, when the deflection preventing member is a hard rod-like member, the rod-like member may be disposed by sewing, bonding, welding, etc. in a state where the rod-like member is exposed at the screen portion, and provided at the screen portion. You may arrange | position in the part of the said screen, without exposing outside by covering with a cover part.

  In the latter case, even if the anti-bending member is made of a hard material, the anti-bending member is covered only by the cover and not exposed to the outside, or is covered by the cover and the screen. Therefore, it is possible to prevent damage to external objects and the like, and for a shutter device of a type in which the shutter curtain that has been opened and moved is wound around the winding shaft and stored, this winding is performed. It is possible to prevent the deflection preventing member from coming into contact with the member constituting the shutter curtain and damaging it.

  In addition, as long as such an effect can be achieved, the cover portion may cover all or almost all of the rod-shaped members.

  Thus, when providing the cover part for covering a hard rod-shaped member in the part of the screen, the form of this cover part is arbitrary.

  For example, the 1st example is forming a cover part with the film | membrane-like member for bag parts which forms a bag part with the screen for curtains which is the said screen. In the case of this example, a rod-shaped member is accommodated inside a bag portion formed by the screen and the film member for the bag portion. The film member for the bag portion may be formed of the same material as the curtain screen, or may be formed of a different material.

  In the second example, the covering part is formed by a covering film-like member attached to the curtain screen, which is the screen, by velcro or bonding. In the case of this example, when a covering film member made of the same material as the curtain screen or a different material is attached to the curtain screen, a rod-shaped member is interposed between the curtain screen and the covering film member. Intervene.

  A third example is to form a loop portion in the screen portion by bending and bending a part of the screen in the opening / closing movement direction of the shutter curtain, and this loop portion is used as a covering portion. In the case of this example, a loop portion that continuously opens in the curtain width direction is formed in a part of the screen, and the loop portion is sewn after a rod-like member is disposed inside the loop portion. It shall be a closed loop by bonding, welding, etc.

  In the fourth example, a bag portion is formed by folding a single film-like member made of the same material as or a different material from the curtain screen, and this bag portion is sewn, adhered, welded, etc. to the curtain screen. Attachment, after this attachment, or before this attachment, is to store the rod-shaped member inside the bag portion.

  In the case of the first example, the entire circumference of the membrane member for the bag portion may be joined to the curtain screen by sewing, bonding, welding, etc. A non-bonding portion may be provided.

  According to the latter, after attaching the film | membrane-like member for bag parts to the screen for curtains, the operation | work which inserts a rod-shaped member into the inside of a bag part from a non-joining part can be performed. The non-joint portion that is the insertion port for the rod-shaped member may be used only for inserting the rod-shaped member into the bag portion, and the rod-shaped member may be replaced with the bag portion for replacement of the rod-shaped member as necessary. It may also be used for taking out from the inside of.

  In this way, when the entire circumference of the bag-like membrane member is coupled to the curtain screen except for a part, and the closing movement direction of the shutter curtain is downward, it is coupled to the curtain screen. It is preferable that a part of the film member for bag portion not to be formed is an upper portion in the vertical side portion of the film member for bag portion.

  According to this, when the shutter curtain is closed and moved, the rod-shaped member is present in the lower portion inside the bag portion due to its own weight, so that the rod-shaped member can be prevented from escaping from the inside of the bag portion.

  In the present invention, the deflection preventing member disposed in the portion of the screen having continuity in the opening / closing movement direction of the shutter curtain is arranged such that the screen portion is arranged in parallel in the opening / closing movement direction of the shutter curtain. In the case of being formed of a plurality of screen pieces, a rigid sewing member used to sew two screen pieces in which end portions adjacent to each other are overlapped may be used.

  Also by this, since the bending prevention member is a hard sewing member used for sewing two screen pieces, the bending prevention member is the same as the case where the bending prevention member is the rod-shaped member described above. It is no longer necessary to produce a special shape or structure.

  Moreover, you may provide the retaining member which prevents this curtain width direction edge part from slipping out from the said guide rail in the curtain width direction edge part of a shutter curtain. When such a retaining member is provided at the end of the shutter curtain in the curtain width direction, it is preferable to connect a deflection preventing member to the retaining member.

  According to this, since the retaining member is fixedly provided on the shutter curtain, the deflection preventing member connected to the retaining member is more reliably disposed on the shutter curtain. In addition, the portion of the shutter curtain where the deflection preventing member is disposed is a portion where the shutter curtain is prevented from being bent in the curtain thickness direction when it receives wind pressure or the like. By connecting the member, the function of the retaining member for preventing the end of the curtain width direction of the shutter curtain from coming out of the guide member is further improved.

  The screen type shutter device according to the present invention described above is used as a shutter device for disaster prevention for forming a disaster prevention zone when a disaster such as a fire occurs, or a shutter device for an opening portion for opening and closing openings such as doorways and windows. Applicable. The disaster prevention shutter device includes an elevator disaster prevention shutter device in which a shutter curtain having at least smoke shielding property among fire prevention properties and smoke shielding properties is opened and closed between the elevator and the elevator hall. In addition, a disaster prevention shutter for escalators and a disaster prevention shutter device for emergency stairs are included. The opening shutter device includes a garage shutter device, and also includes a loading platform shutter device installed on a loading platform such as a truck.

  When the screen-type shutter device according to the present invention is applied to an elevator disaster prevention shutter device, a guide portion for guiding the movement of the shutter curtain may be provided on the outer frame of the opening that forms the entrance to the elevator, You may provide the guide member for guiding the movement of a shutter curtain in the independent state remove | deviated from this outer frame | frame.

  The present invention can also be applied to a shutter device that only closes and moves the shutter curtain when necessary and does not consider opening movement, such as a disaster prevention shutter device.

  In the present invention, it is sufficient that at least a part of the shutter curtain is formed of a screen, and the entire shutter curtain may be formed of the screen. When a part of the shutter curtain is formed by a screen, the other part of the shutter curtain may be formed by an arbitrary member, for example, it may be formed by a slat, a panel, or a net. It may be formed by a plurality of pipes connected by links, or may be formed by a composite of at least two of these.

  Further, as described above, the screen of the shutter curtain may be a screen having at least smoke shielding property among fireproofing and smoke shielding properties, or may be a synthetic resin screen or the like, and is a material suitable for the use of the screen type shutter device. A screen consisting of

  In addition, the shutter curtain that has moved open may be retracted by a take-up shaft or may be folded and stored. As in an overhead door, the shutter curtain remains in a closed state or is curved. It may be sent and stored in such a state, and for the part formed by a plurality of separable panels, the panels may be separated and polymerized and stored.

  Furthermore, the opening / closing movement direction of the shutter curtain may be the up / down direction, the left / right direction, or a direction having an inclination angle with respect to these directions.

  According to the present invention, it is possible to obtain an effect that the shape and structure of the deflection preventing member provided in the shutter curtain can be simplified.

  Embodiments of the present invention will be described below with reference to the drawings. The screen-type shutter device according to the present embodiment is a disaster prevention shutter device for elevators. Hereinafter, the disaster prevention shutter device for elevators according to the present embodiment will be described. FIG. 1 is a front view showing the whole elevator disaster shutter device, FIG. 2 is a sectional view taken along line S2-S2 of FIG. 1, and FIG. 3 is a longitudinal sectional view of the elevator disaster shutter device of FIG.

  First, the overall structure of the elevator will be described. As shown in FIGS. 2 and 3, the concrete wall 4, which is a building frame that divides the vertical hole 2 and the elevator hall 3 in the building in which the elevator lifting and lowering box 1 moves up and down, has a lower surface on the elevator hall. An opening 6 that is a floor 5 continuing from 3 is formed, and an elevator door 7 is disposed at the back of the vertical hole 2 in the opening 6 that is an elevator entrance. In order to open and close the elevator door 7 disposed at a position deviated from the thickness of the wall 4 to the vertical hole 2 side, as shown in FIG. It is provided above and below the door 7.

  Upper and lower rollers 10 and 11 attached to the upper bracket 7A of the elevator door 7 are movably engaged with the upper rail 8, and the lower rail 9 provided on the floor 5 is attached to the lower surface of the elevator door 7. The elevator door 7 which is an upper suspension type in which the attached engagement member 12 is slidably engaged and is suspended by the upper roller 10, guides these rollers 10, 11 and the engagement member 12. By the action, it is opened and closed by the driving force of the driving means (not shown).

  As shown in FIG. 1, the upper frame member 13 and the side frame member 14 are disposed on the upper inner surface of the opening 6 and the left and right side inner surfaces, thereby forming an upper inner member that forms the upper inner surface of the opening 6. The upper frame member 13 and the side frame member 14 which is the side inner surface member forming the side inner surface are provided with an outer frame 15 for the opening which is a three-sided frame on the inner surface of the opening 6. . The upper frame member 13 and the side frame member 14 are made of a metal plate such as stainless steel and serve as a decorative material for the opening 6.

  As shown in FIG. 3, the upper frame member 13 includes a rising portion 13A on the elevator hall 3 side and an extending portion 13B extending horizontally from the lower end of the rising portion 13A to the elevator door 7 side. The rising portion 13A is attached to a mounting member 18 provided on the surface of the falling wall 4A above the opening 6 in the wall 4 on the elevator hole 3 side, and the extending portion 13B is the surface of the falling wall 4A on the vertical hole 2 side. Are coupled to a holding member 21 coupled via a coupling tool 19 and a bracket 20. The upper rail 8 is attached to the holding member 21.

  Further, the attachment member 18 above the rising portion 13A of the upper frame member 13 is disposed in a ceiling back space 17 that is partitioned from the elevator hall 3 by the ceiling member 16 in the vertical direction. As shown in FIG. 1, an elevator indicator 19 is disposed at the rising portion 13A.

  As shown in FIG. 1, the elevator disaster prevention shutter device according to the present embodiment includes a shutter curtain 30 that opens and closes the opening 6 by opening and closing, in other words, by moving up and down. As shown in FIG. 2, both left and right end portions of the shutter curtain 30, in other words, both end portions in the curtain width direction orthogonal to the opening / closing movement direction of the shutter curtain 30 are secured to the guide rail 31 while being prevented from being detached by the retaining member 30B. It is slidably inserted. The pair of left and right guide rails 31 are arranged on the decorative material 32 on the surface of the side wall 4 </ b> B on the side of the elevator hole 3 provided on the left and right sides of the opening 6 in the wall 4. These guide rails 31 are arranged on the side of the elevator hall 3 with respect to the outer frame 15 of the three-side frame that is the decorative material of the opening 6 and includes the upper frame member 13 and the side frame member 14. .

  As shown in FIG. 3, the opening / closing moving means 33 for opening and closing the shutter curtain 30 is arranged in a space above the ceiling member 16, that is, in the ceiling back space 17. The opening / closing moving means 33 includes a horizontal winding shaft 34 to which the upper end portion of the shutter curtain 30 is coupled, an opening / closing machine 36 connected to the winding shaft 34 via a connecting means 35 such as a sprocket or a chain, And a brake driving device 37 for starting and releasing a brake provided on the rotary shaft 36A of the opening / closing machine 36. The brake drive device 37 is provided with a manual operation unit, and the brake is activated and released by manually operating the manual operation unit. In addition, the brake drive device 37 is connected to a fire sensor installed at an appropriate place of a building such as a building where an elevator is installed or an underground shopping mall, and this fire sensor detects smoke, flame or heat and detects that. When a signal is input to the brake drive device 37, the brake is released.

  The brake drive device 37 described above is attached to the opening / closing machine 36, and the winding shaft 34 and the opening / closing machine 36 are attached to a bracket 38 coupled to the attachment member 18. Further, as shown in FIG. 3, the shutter curtain 30 is moved downward from the winding shaft 34 of the opening / closing moving means 33 configured as described above through a slit of a lintel (not shown) arranged on the ceiling member 16. It is drooping.

  The seat plate 30A at the lower end of the shutter curtain 30 is lowered along the guide rail 31 and the brake 36 is released so that the rotary shaft 36A and the winding shaft 34 of the switch 36 can be rotated. , The rotation shaft 36A of the opening / closing machine 36 is rotated forward by a manual tool such as a handle or an electric tool such as a motor, and this forward rotation is transmitted to the take-up shaft 34 via the connecting means 35. As a result, the shutter curtain 30 can be taken up by the take-up shaft 34 and raised, whereby the shutter curtain 30 can be stored in the take-up shaft 34 and the opening 6 can be opened.

  Further, when the shutter curtain 30 is raised and the seat plate 30A reaches the height position of the lintel of the ceiling member 16 and the brake is activated, in other words, the shutter curtain 30 opens the opening 6. When a smoke, flame or heat detection signal from the fire sensor is input to the brake drive device 37 and the brake is released thereby, the shutter curtain 30 is caused by its own weight including the seat plate 30A. 30 descends while rotating the winding shaft 34 in the reverse direction, and the seat 6A comes into contact with the floor 5 so that the opening 6 is closed by the shutter curtain 30 fed out from the winding shaft 34. Yes.

  Thereby, the opening part 6 is closed with the shutter curtain 30 which can be moved up and down in the location between the elevator in the building, and the said elevator hall 3 at the time of occurrence of a fire. On the other hand, the work of rotating the rotary shaft 36A of the opening / closing device 36 with the above-described handle or the like is performed at the time of maintenance and inspection of the emergency shutter device for elevators.

  In the above, since the guide rail 31 for guiding the vertical movement of the shutter curtain 30 is arranged on the elevator hall 3 side with respect to the opening 6 which is an entrance to the elevator, the shutter curtain 30 is arranged from the opening 6. Is also opened and closed on the elevator hall 3 side. In addition, the opening / closing moving means 33 for opening and closing the shutter curtain 30 is disposed in the ceiling space 17 close to the falling wall 4 </ b> A of the wall 4.

  As shown in FIG. 2, a smoke blocking member 40 is housed and disposed inside the guide rail 31 into which both ends of the curtain width direction of the shutter curtain 30 are inserted. It is also housed in the slit of the lintel that passes up and down. This prevents smoke and flame from reaching the opposite side of the shutter curtain 30 through the inside of the guide rail 31 and the lintel slit when the shutter curtain 30 is closed and moved to close the opening 6. It has come to be.

  In the above, the shutter curtain 30 is excluding the metal seat plate 30A which is a closed end member and the metal suspension member which is an open end member coupled to the winding shaft 34. The screen 50 is formed. That is, the curtain main body which occupies most of the shutter curtain 30 is formed of a screen 50, and this screen 50 is obtained by applying and / or impregnating a fireproof paint to silica cloth or glass cloth. And has smoke barrier properties.

  As shown in FIG. 1, the portion of the screen 50 in the shutter curtain 30 is prevented from being bent to prevent the screen 50 from being bent in the curtain thickness direction of the shutter curtain 30 due to the wind pressure at the time of fire. The member 51 is provided, and a plurality of the deflection preventing members 51 extending in the curtain width direction and having both end portions inserted into the left and right guide rails 31 are provided in the opening / closing movement direction of the shutter curtain 30. ing. These deflection preventing members 51 whose both end portions are slidable with respect to the guide rail 31 are made of a metal round bar. Therefore, the deflection preventing member 51 is a hard rod-like member. Each rod-like member 51 is housed in a bag portion 52 provided on the screen 50 and disposed on the shutter curtain 30.

  FIG. 4 is a partially enlarged view of FIG. 1 showing the bag portion 52 in an enlarged manner. Each bag portion 52 has a screen 50 that forms the curtain body of the shutter curtain 30, in other words, a curtain screen 50, and the curtain curtain width is shorter than the curtain screen 50 in the opening / closing movement direction of the shutter curtain 30. The length in the direction is formed by the film member 53 for the bag portion that is the same as or substantially the same as the curtain screen 50. The bag portion film-like member 53 is formed of the same material as the curtain screen 50 and has fire resistance and smoke shielding properties.

  As shown in FIG. 4, the entire length of the upper side 53A and the lower side 53B of the bag-like film member 53 is sewn to the curtain screen 50, and the left and right vertical sides 53C and 53D are The curtain screen 50 is sewn except for the upper portion 54. For this reason, the film-like member 53 for the bag part is coupled to the curtain screen 50 on the entire circumference except for a part 54.

  Thus, storing the rod-like member 51 inside the bag portion 52 formed by the curtain screen 50 and the bag-like film-like member 53 sews the bag-like film-like member 53 to the curtain screen 50. After the shutter curtain 30 is manufactured by being bonded, or after the curtain body is manufactured, the rod-shaped member 51 is bagged from the non-bonded portion 54 where the bag-like film-like member 53 is not bonded to the curtain screen 50. This is done by inserting it into the part 52.

  Further, for example, when the rod-shaped member 51 is taken out from the bag portion 52 in order to replace the rod-shaped member 51 that has deteriorated due to long-term use, the non-bonded portion 54 is used.

  When the rod-like member 51 is housed inside the bag portion 52, the rod-like member 51 is disposed on the curtain screen 50 while being covered with the bag portion membrane-like member 53. Since it becomes a cover part for covering the rod-shaped member 51, the rod-shaped member 51 is not exposed outside.

  As described above, when the shutter curtain 30 is closed and moved due to the occurrence of a fire, the both ends of the rod-like member 51 housed in the bag portion 52 are located between the left and right guide rails 31. Since it is inserted inside, even if the curtain screen 50 of the shutter curtain 30 receives a pressure such as wind pressure, the rod-shaped member 51 will cause the curtain screen 50 to be greatly bent in the curtain thickness direction of the shutter curtain 30. To prevent. Thereby, it is possible to prevent the left and right end portions of the shutter curtain 30 from coming out of the guide rail 31, and when the shutter curtain 30 is fully closed, the seat plate 30A that is the front end member of the shutter curtain 30 and the floor 5 It is possible to prevent a gap from occurring between the two.

  Further, the portion of the bag portion 52 in which the rod-like member 51 is housed is a portion that protrudes somewhat in the curtain thickness direction of the shutter curtain 30, so that the shutter curtain 30 that is fully closed is slightly raised. When a person passes under the shutter curtain 30, the portion of the bag portion 52 can be used to lift the shutter curtain 30.

  According to the present embodiment described above, the deflection preventing member 51 for preventing the shutter curtain 30 from being bent in the curtain thickness direction is not for connecting the two screens forming the shutter curtain 30, but for preventing the deflection. Since the member 51 is disposed on the portion of the curtain screen 50 that forms the curtain body of the shutter curtain 30 and has continuity in the opening / closing movement direction of the shutter curtain 30, the deflection preventing member 51 is provided. A rod-like member having a simple shape and structure can be obtained. For this reason, costs, such as a manufacturing cost regarding a bending prevention member and attachment cost, can be reduced compared with the past.

  Even if the rod-like member 51 is made of a hard material, the rod-like member 51 is covered with the bag-like film-like member 53 serving as a covering portion and is not exposed to the outside. There is no possibility that the rod-shaped member 51 may be damaged at the outside, and when the shutter curtain 30 is wound up by the winding shaft 34, the rod-shaped member 51 is a curtain of the shutter curtain 30 that faces the rod-shaped member 51. There is also no risk of damaging the screen 50.

  Further, since the rod-shaped member 51 is disposed on the curtain screen 50 because the rod-shaped member 51 is accommodated inside the bag portion 52 formed by the bag-like film-like member 53, the rod-shaped member is disposed on the curtain screen 50. This is more reliable than sewing 51.

  Further, forming the bag portion 52 with the film member 53 for the bag portion on the curtain screen 50 is not partially sewn to the curtain screen 50 without sewing the entire periphery of the bag portion film member 52. Since the curtain screen 50 in which the bag portion 52 is formed is manufactured, the rod-shaped member 51 can be easily placed inside the bag portion 52 by using the non-bonded portion 54 as an insertion port of the rod-shaped member 51. Can be inserted into.

  Further, since the non-bonding portion 54 is an upper portion of the vertical side portions 53C and 53D of the bag portion film-like member 53, when the shutter curtain 30 is closed and moved downward and when it is fully closed, the bag portion Thus, it is possible to prevent the rod-like member 51 housed in the lower part of the 52 by its own weight from escaping from the non-bonding portion 54.

  In FIG. 4, the non-bonding portion 54 is provided on the upper portions of both the vertical side portions 53C and 53D, but may be provided only on the upper portion of one of the vertical side portions.

  In the embodiment of FIG. 5, a covering film-like member 60 is bonded to the curtain screen 50 with Velcro or an adhesive. In this embodiment, before joining the covering film-like member 60 to the curtain screen 50 with Velcro or an adhesive, the rod-like member 51 is interposed between the curtain screen 50 and the covering film-like member 60, Next, the covering film-like member 60 is bonded to the curtain screen 50 with Velcro or an adhesive, and the rod-like member 51 is sandwiched between the curtain screen 50 and the covering film-like member 60.

  Also in this embodiment, the rod-like member 51 can be disposed on the curtain screen 50 of the shutter curtain 30 without exposing the rod-like member 51 to the outside by the covering portion formed by the covering film-like member 60.

  FIG. 6 shows still another embodiment, and FIG. 7 is a sectional view taken along line S7-S7 in FIG. In this embodiment, a retaining member 75 is provided at both ends of the shutter curtain 30 in the curtain width direction of the shutter curtain 30 that is slidably inserted into the guide rail 76 to prevent it from coming out of the guide rail 76. The retaining member 75 is connected to a rod-like member 71 covered with a covering film-like member 70 bonded to the curtain screen 50 with Velcro or an adhesive. More specifically, both end portions of the rod-like member 71 are ring portions 71A, and the shaft portion 73A of the bolt 73 forming the retaining member 75 is covered with the covering film-like member 70, the ring portion 71A, and the curtain member. A nut 74 that forms a retaining member 75 together with the bolt 73 is screwed to the tip of a shaft portion 73A that is inserted through the screen 50 and protrudes outside the curtain screen 50.

  According to this embodiment, since the retaining member 75 is fixedly provided on the shutter curtain 30, the rod-like member 71 connected to the retaining member 75 can be more reliably disposed on the shutter curtain 30. 30 and the rod-shaped member 71 can be integrated. Further, the portion of the shutter curtain 30 where the rod-like member 71 is disposed is a portion where the shutter curtain 30 is prevented from being greatly bent in the curtain thickness direction when it receives wind pressure or the like. The function of the retaining member 75 that prevents the curtain width direction end from slipping out of the guide rail 76 can be further improved by connecting the rod-shaped member 71 and the retaining member 75.

  In the embodiment of FIG. 8, the curtain body of the shutter curtain 30 is formed by a plurality of curtain screen pieces 80 arranged in parallel in the opening / closing movement direction of the shutter curtain 30. Of the two screen pieces 80 adjacent to each other in the vertical direction, the upper end portion 80A of the lower screen piece 80 and the lower end portion 80B of the upper screen piece 80 are overlapped in the curtain thickness direction. The two screen pieces 80 are sewn and joined by a sewing thread 81 which is a metal sewing member. Both ends of the sewing thread 81 are connected to a retaining member 75 made up of a bolt and a nut, as in the embodiment of FIGS. This connection is made by clamping the sewing thread 81 between the bolt and the nut when the bolt of the retaining member 75 is screwed to the nut.

  According to this embodiment, by using the metal sewing thread 81 to connect the two curtain screen pieces 80 forming the shutter curtain 30, the sewing thread 81 can be used as an anti-bending member. Therefore, the bending prevention member can be further simplified.

  INDUSTRIAL APPLICABILITY The present invention can be used for an elevator shutter device in which at least a part is formed of a screen and a shutter curtain for forming a disaster prevention section is arranged between the elevator and the elevator hall.

FIG. 1 is a front view showing an entire elevator disaster prevention shutter device which is a screen type shutter device according to an embodiment of the present invention. 2 is a cross-sectional view taken along line S2-S2 of FIG. FIG. 3 is a longitudinal sectional view of the elevator disaster prevention shutter device of FIG. FIG. 4 is a partially enlarged view of FIG. 1, and is a front view showing a portion of a bag portion provided on the shutter curtain in order to accommodate a rod-shaped member that is a deflection preventing member. FIG. 5 is a view similar to FIG. 4 showing another embodiment for disposing a shutter curtain on a rod-shaped member. FIG. 6 is a view similar to FIG. 4 showing still another embodiment. 7 is a cross-sectional view taken along line S7-S7 in FIG. FIG. 8 is a view similar to FIG. 4 showing an embodiment in which the deflection preventing member is a metal sewing thread for sewing two screen pieces forming a shutter curtain.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Elevator lifting / lowering box 6 Opening part 7 Elevator door 3 Elevator hall 30 Shutter curtain 31, 76 Guide rail as guide member 50 Curtain screen 51, 71 Bar-like member as deflection preventing member 52 Bag part 53 Film part for bag part Member 53C, 53D Vertical side portion 54 Non-bonding portion which is insertion port of rod-like member 60, 70 Covering film-like member 75 Retaining member 80 Screen piece 80A, 80B End portion of screen piece 81 Metal made as sewing member Sewing thread

Claims (6)

The shutter curtain that can be opened and closed is guided by guide members arranged on both sides of the curtain width direction orthogonal to the opening and closing movement direction, and at least a part of the shutter curtain is formed of a screen, and the shutter curtain The screen-type shutter device is provided with a deflection preventing member that extends in the curtain width direction and has an end portion slidably inserted into the guide member and prevents the shutter curtain from bending in the curtain thickness direction. In
The shutter curtain in which the closing movement direction is downward is to close a portion between the elevator and the elevator hall,
The deflection preventing member is disposed on the portion of the screen having continuity in the opening / closing movement direction of the shutter curtain, and the deflection preventing member is a hard rod-shaped member,
This rod-shaped member is housed in a bag portion provided in the screen portion,
The length of the rod-shaped member in which both ends are slidably inserted into the left and right guide members is larger than the opening width when the elevator door is opened,
The bag portion in which the rod-like member is accommodated has a shorter length in the opening / closing movement direction of the shutter curtain than the screen, and the length in the curtain width direction is the same as or substantially the same as the screen. The bag portion film-like member is the same, and the upper side portion of the bag portion film-like member is connected to the screen above the rod-like member, and the bag portion film-like member is formed. The lower side portion of the member is coupled to the screen below the rod-shaped member, so that the rod-shaped member is in contact with the screen ,
An opening serving as an elevator entrance / exit is provided in a wall that divides the vertical hole in which the elevator lifting / lowering box moves up and down and the elevator hall, and the lower surface is a floor continuing from the elevator hall An upper frame member and side frame members are disposed on the upper inner surface and the left and right side inner surfaces, and the upper frame member and the side frame member provide a three-sided opening on the inner surface of the opening. An external framework was formed,
The shutter curtain is arranged closer to the elevator hall than the outer frame for the opening, and the guide members on both sides of the curtain width direction are openings at the end of the opening on the elevator hall side. With a gap larger than the width, arranged on the side walls provided on the left and right sides of the opening in the wall,
The rod-type member and the bag-like membrane member are arranged on the elevator hall side surface of the elevator side surface and the elevator hall side surface of the screen. Shutter device. 2. The screen-type shutter device according to claim 1 , wherein a surface of the side wall on which the pair of left and right guide members are arranged on the side of the elevator hall is made of a decorative material. . 3. The screen-type shutter device according to claim 1 , wherein the bag-like film member is coupled to the screen all around the screen except for a part thereof, and the unbonded portion of the bag-shaped member is a portion of the bag portion. A screen-type shutter device comprising a non-joining portion for enabling insertion of the rod-shaped member into the interior and removal of the rod-shaped member from the interior of the bag portion. 4. The screen-type shutter device according to claim 3 , wherein total lengths of the upper side portion and the lower side portion of the bag portion film-shaped member are coupled to the screen, and left and right vertical portions of the bag portion film-shaped member are disposed. The side shutter is coupled to the screen except for its upper part, and the upper part is the non-coupled part. 5. The screen-type shutter device according to claim 1 , wherein the length of the bar-like member excluding the length inserted into the left and right guide members from the total length of the bar-like member is the elevator door. A screen-type shutter device characterized in that it is larger than the opening width when the is opened. The screen type shutter device according to any one of claims 1 to 5 , wherein the opening has a shape that widens toward the elevator hall from the elevator door, and both end portions of the guide member are formed. The screen-type shutter device according to claim 1, wherein the length of the bar-like member inserted slidably inside is larger than the maximum width of the opening of the opening.

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