JP5215635B2 - Opening / closing body retaining structure of switchgear - Google Patents

Description

  The present invention relates to an opening / closing body retaining structure for an opening / closing device for preventing the opening / closing body from coming off from a guide member that guides the opening / closing movement of the opening / closing body such as a shutter curtain, for example, when a disaster such as a fire occurs. Various shutter devices including a shutter device for disaster prevention that forms a disaster prevention zone, a shutter device for an opening that opens and closes an opening such as an entrance / exit with a shutter curtain (including an overhead door type), a smoke proof curtain device, In addition, it can be used to prevent the opening / closing body of the opening / closing device such as the smoke-proof hanging wall device from coming off.

  Patent Document 1 below discloses a shutter device that is an open / close device that includes a shutter curtain that is an open / close body and a pair of left and right guide rails that are guide members that guide the open / close movement of the shutter curtain. Has been. Each guide rail has an opening in which an end portion in the width direction (left-right direction) of the shutter curtain is slidably inserted in the opening / closing movement direction of the shutter curtain.

  Further, in this shutter device, the shutter curtain in the fully closed state or substantially fully closed state is bent by an impact such as wind pressure or an artificial external force, so that the end in the width direction of the shutter curtain is the opening of the guide rail. A shutter curtain retaining structure is employed that includes a retaining member that prevents the retaining member from slipping out and a retaining member that latches to the retaining member.

The retaining member constituting the shutter curtain retaining structure is provided over the entire length of the opening / closing movement direction of the shutter curtain or substantially the entire length inside the opening that is inside the left and right guide rails. It has two protrusions facing each other in the (front-rear direction). On the other hand, the locking members are provided at both ends in the width direction of the shutter curtain and have a substantially T-shaped horizontal cross section. The locking members are engaged with the two protrusions which are retaining members. By stopping, even if the shutter curtain is bent due to an impact such as wind pressure or an artificial external force, the end of the shutter curtain in the width direction is prevented from coming out of the opening of the guide rail. .
JP 2001-182455 A

  However, in the shutter curtain retaining structure shown in Patent Document 1, the retaining member is provided inside the guide rail.

  For this reason, in order to newly provide the retaining member inside the guide rail of an existing shutter device that does not employ the shutter curtain retaining structure, the existing guide rail is removed and the retaining member is provided. It has been necessary to replace the guide rail with a new one, or to perform a renovation work for newly installing the retaining member on the removed existing guide rail at a factory or the like. That is, it is not easy to newly provide the above-mentioned retaining member inside the existing guide rail because of cost and labor. In addition, it is not easy to provide a new locking member for locking the retaining member at the end in the width direction of the shutter curtain because of cost and labor.

  For this reason, it is necessary to devise a shutter curtain retaining structure for the shutter device that can easily install the retaining member to the guide member for the existing shutter device as well as the existing shutter device. It was.

  An object of the present invention is to provide an opening / closing body retaining structure for an opening / closing device that facilitates installation work of a retaining member to a guide member.

  An opening / closing body retaining structure for an opening / closing apparatus according to the present invention includes an opening / closing body that opens and closes and an opening through which an end of the opening / closing body in a width direction is slidably inserted. A guide member for guiding, provided on the guide member, provided on the opening / closing body, and a retaining member for preventing the end of the width direction of the opening / closing body from coming off from the opening of the guide member, An opening / closing body retaining structure for an opening / closing device configured to include a retaining member that is retained by the retaining member, wherein the retaining member is provided on an outer surface of the guide member, The opening / closing body is provided at a portion excluding the end portion in the width direction inserted into the opening of the guide member.

  In the present invention, the retaining member is not provided inside the guide member as in the prior art, but is provided on the outer surface of the guide member. Also, the locking member that locks to the retaining member is not provided at the end in the width direction inserted into the opening of the guide member, as in the conventional opening and closing body, It is provided in a portion excluding an end in the width direction inserted into the opening of the guide member (in other words, an externally exposed portion of the opening / closing body exposed to the outside from the opening of the guide member). Yes.

  Therefore, according to the present invention, when this opening / closing body retaining structure is newly adopted for an existing opening / closing device that does not employ the opening / closing body retaining structure, the retaining member is not removed without removing the existing guide member. It becomes possible to install a member, and accompanying this, a locking member that locks to the retaining member can also be installed on this opening / closing body without removing the existing opening / closing body.

  Further, according to the present invention, when the opening / closing body retaining structure is employed in the newly installed opening / closing device, it is not necessary to perform the work of previously providing the retaining member on the guide member in the factory as in the prior art, and the opening / closing device is installed Even after the guide member is installed at the place, the retaining member can be installed on the guide member. In addition, the locking member that is locked to the retaining member can be installed on the opening / closing body even after the opening / closing body is installed at the place where the opening / closing device is installed. Become.

  As described above, according to the present invention, not only for a newly installed switchgear, but also for an existing switchgear that does not employ an open / close body retaining structure, installation work of the retaining member on the guide member Can be easily performed. Moreover, the installation work to the opening / closing body of the locking member locked to the retaining member can be easily performed.

  Further, according to the present invention, even when it is necessary to replace existing retaining members and locking members with new ones, replacement of these members can be easily performed without removing the guide member and the opening / closing member. It becomes like this.

  In the present invention, the retaining member may or may not be provided on the outer surface of the guide member over the entire length or substantially the entire length of the opening / closing body in the opening / closing movement direction. According to the former case, the locking member can be locked to the retaining member regardless of the position of the opening / closing body in the opening / closing movement direction, and the opening / closing body is in the open / close movement or fully closed state. It is prevented from coming off from the opening. Therefore, it is preferable that the retaining member is provided on the outer surface of the guide member over the entire length or substantially the entire length in the opening / closing movement direction of the opening / closing body.

  If the opening / closing body only needs to be prevented from coming off only when the opening / closing body is in the fully closed state or substantially fully closed state, the retaining member is at least the closing movement direction of the opening / closing body on the outer surface of the guide member. It suffices if it is provided at the end of the.

  In the present invention, a part of the opening / closing body excluding an end in the width direction inserted into the opening of the guide member (in other words, an external part of the opening / closing body that is exposed to the outside from the opening of the guide member) One locking member provided in the exposed portion) may be provided in the opening / closing movement direction of the opening / closing body, or a plurality of locking members may be provided. According to the latter, the opening / closing body is more reliably prevented from coming out compared to the former case.

  In the present invention, the locking member may be provided on one surface of the opening / closing body, or may be provided on both surfaces. According to the latter, the opening / closing body is more reliably prevented from coming out compared to the former case. In the latter case, the retaining member that is locked to the locking member provided on one surface of the opening / closing body and the retaining member that is locked to the locking member provided on the other surface are guided. It is necessary to provide the member.

  In the present invention, the shape and structure of the locking member is arbitrary, and has a shape and structure that can be locked to the retaining member when the opening / closing body is bent by an impact such as wind pressure or an artificial external force. Just do it.

  As a first example of the locking member, a hook member that is slidable on the retaining member can be cited. Here, the hook member is, for example, a direction orthogonal to or substantially orthogonal to the opening / closing movement direction of the opening / closing body (the width direction of the opening / closing body, the thickness direction of the opening / closing body, and the direction having components in these directions) Etc.) that have a hook shape (in other words, a hook shape) that is open to the opening / closing body and that has a thickness in the opening / closing movement direction of the opening / closing body, and includes a cross-sectional shape in this direction that is a hook shape.

  In this first example, the shape and structure of the retaining member that is locked by the hook member that is the locking member is also arbitrary, the hook member can be locked, and the impact such as wind pressure or artificial Even if the opening / closing body bends due to an external force or the like, it is sufficient that the hook member has a shape and structure that does not detach, for example, the cross-sectional shape in a direction orthogonal to or substantially orthogonal to the opening / closing movement direction of the opening / closing body It may be in a hook shape opened in a direction opposite to or substantially opposite to the opening direction.

  Further, as a second example of the locking member, there can be mentioned a rotating member that can freely roll on the retaining member. According to this, compared with the first example in which the locking member is a hook member, the friction generated when the locking member is locked to the retaining member can be reduced. The member is smoothly locked to the retaining member. Here, the axial direction of the rotating member as the locking member is, for example, a direction orthogonal to or substantially orthogonal to the opening / closing movement direction of the opening / closing body (the width direction of the opening / closing body, the thickness direction of the opening / closing body, And the like having a component in the direction).

  In this second example, the shape and structure of the retaining member that is locked by the rotating member that is the locking member is also arbitrary, the rotating member can be locked, and it can be used for impact such as wind pressure or artificial Even if the opening / closing body bends due to an external force or the like, it is sufficient that the rotating member has a shape and a structure that does not separate. The cross-sectional shape of the direction to do may be a hook shape.

  Furthermore, as a third example of the locking member, it is formed of a string-like member, has an opening that opens in a direction having a component in the opening / closing movement direction of the opening / closing body, and can be inserted into the retaining member. A loop member can be mentioned.

  In this third example, the retaining member that is locked by the loop member that is a locking member has, for example, a length in the opening / closing movement direction of the opening / closing body, and is separated from the guide member in the thickness direction of the opening / closing body. The end of the opening / closing body in the closing movement direction is fixed to the guide member, and the opening of the loop member can be inserted through the opening of the opening / closing body in the rod-like member Can be mentioned. According to this, the opening of the loop member as the locking member is inserted into the rod-shaped member as the retaining member, so that the opening / closing body is prevented from coming off.

  In the present invention described above, when the end of the opening / closing body in the width direction is prevented by the locking of the locking member to the retaining member (the locking member can be locked to the retaining member). It is preferable that the position of the opening / closing body at a position on the opening side of the guide member is closer to the retaining member side than the center position of the opening / closing body in the thickness direction of the opening / closing body.

  In the event of a fire, smoke generated by this fire may flow out to the other space partitioned by the open / close body that is in the fully closed state or substantially fully closed state, through the opening of the guide member. is there. However, since the position of the opening / closing body is closer to the retaining member side than the center position in the thickness direction of the opening / closing body at the opening of the guide member, the end in the width direction of the opening / closing body and the vicinity thereof The gap generated between the opening of the guide member is small. As a result, smoke generated by a fire is more reliably prevented from flowing into the other space partitioned by the opening / closing body that is in the fully closed state or substantially fully closed state via the opening of the guide member. can do. That is, it is possible to further improve the smoke shielding property by the opening and closing body at the time of fire occurrence.

  Further, the position of the opening / closing body is closer to the retaining member side than the central position of the opening / closing body in the thickness direction of the opening / closing body, so that the opening / closing body is in a fully closed state or a substantially fully closed state. It is possible to make it difficult to open the openable / closable body by an intruder from the outside. That is, the crime prevention performance of the opening / closing body in the fully closed state or the substantially fully closed state can be improved.

  In the above-mentioned present invention, the type and structure of the opening / closing body are arbitrary, for example, it may be composed only of a hard part, may be composed only of a soft part, or is composed of a composite of a hard part and a soft part. It may be done.

  Here, the hard portion may be formed of a metal member, may be formed of a synthetic resin member, may be formed of a wooden member, or may be formed of a ceramic member. The thing formed with what combined these members may be sufficient.

  Moreover, the shape and structure of the hard part formed by the above members are arbitrary, for example, a slat connecting part formed by connecting a plurality of slats in the opening / closing movement direction of the opening / closing body. Alternatively, it may be a panel connecting portion formed by connecting a plurality of panels in the opening / closing movement direction of the opening / closing body, and connecting a plurality of pipes with links in the opening / closing movement direction of the opening / closing body. It may be a pipe connecting portion formed by a combination of these, or may be a composite of these.

  On the other hand, the soft part may be formed of a thin member such as cloth or synthetic resin (for example, made of silica cloth having fire resistance), or formed of an elastic member made of a porous material such as rubber or sponge. Alternatively, it may be formed by combining these members.

  In addition, the shape and structure of the soft part formed by the above-mentioned members are arbitrary, and may be, for example, a sheet-like screen part, a net-like net part, or a combination of these. .

  In addition, when the opening / closing body is composed of a composite of a hard part and a soft part, the composition ratio and arrangement position of the hard part and the soft part are arbitrary, but the opening / closing body is composed of the hard part and the hard part. And a soft part arranged closer to the closing side of the opening / closing body than the part. That is, it is preferable that the closed side portion of the opening / closing body is formed of a soft portion.

  According to this, even when there is an obstacle in the closing movement direction of the opening / closing body during the closing movement of the opening / closing body, and the obstacle comes into contact with the closing end of the opening / closing body, the opening / closing body is not obstructed. The impact given to can be reduced. That is, since the obstacle comes into contact with the soft part which is the closed side part of the opening / closing body, the impact received by this obstacle is when the closed side part of the opening / closing body is a hard part. It becomes small compared with.

  When the soft part is disposed closer to the opening / closing body than the hard part, the soft part may be disposed over the entire length in the width direction of the hard part. You may arrange only in a part of them. An example of the latter case is that the hard part is formed in a gate shape that opens in the closing movement direction of the opening and closing body, and the soft part is disposed in this opening part. In another example, the hard part is closed by the opening and closing body. For example, a comb-teeth shape opened in the moving direction may be used, and a soft portion may be disposed in each opening portion.

  In addition, when the soft part is arranged closer to the opening / closing body than the hard part, a plurality of soft parts may be arranged in the width direction of the opening / closing body. According to this, when the opening / closing body is in the fully closed state or the substantially fully closed state, one of the soft parts adjacent to each other is lifted up by the person so that the person or object is partitioned by the opening / closing body. It becomes possible to move to the other space.

  In addition, when arrange | positioning a plurality of soft parts in the width direction of an opening / closing body in this way, it is preferable to arrange | position the edge parts of the soft part adjacent to each other in the thickness direction of an opening / closing body. According to this, the smoke shielding property and flame shielding property of the soft part are improved.

  When the opening / closing body is composed of a composite of a hard part and a soft part, it is preferable that the locking member for locking to the retaining member is provided at least in the soft part. This is because when the opening / closing body is bent due to an impact such as wind pressure or an artificial external force, the soft part is more easily removed from the opening of the guide member than the hard part.

  In the above-described present invention, the opening / closing movement direction of the opening / closing body is arbitrary. For example, the opening / closing movement direction may be the vertical direction and the downward direction may be the closing movement direction, or the vertical direction and the upward direction may be the closing movement direction. Thus, the left direction may be the closing movement direction, the left-right direction and the right direction may be the closing movement direction. The vertical direction includes a direction having a vertical component, and the horizontal direction includes a direction having a horizontal component.

  The opening / closing device to which the present invention is applied is arbitrary, for example, a shutter device in which the opening / closing body is a shutter curtain may be used, or a smoke-proof hanging curtain device in which the opening / closing body is a smoke-proof hanging curtain may be used. A smoke-proof hanging wall device or the like having a smoke-proof hanging wall may be used.

  In addition, when the present invention is applied to a shutter device, the shutter device may be a shutter device for any application, and the shutter device is disaster prevention when the shutter curtain reaches the fully closed position or the substantially fully closed position. It may be a disaster prevention shutter device (including one for elevators) that is a disaster prevention shutter curtain for forming a section, and an opening shutter device (overhead) that opens and closes openings such as doorways and windows with the shutter curtain. It may be a door type), a garage shutter device, a storage shutter device, an in-vehicle shutter device mounted on a loading platform of a vehicle such as a truck, or the like.

  Further, when the present invention is applied to a shutter device, the shutter device feeds out the shutter curtain from the storage portion and drives a storage mechanism for storing the shutter curtain in the storage portion (for example, a shutter curtain). When equipped with an opening / closing machine for rotating the take-up / feeding shaft, etc., it has both automatic and manual functions that allow the storage mechanism to be driven not only by the drive unit but also by manual operation. The present invention is also applicable to a shutter device. Further, the present invention is used to rotate the winding shaft when the driving device winds the shutter curtain around the winding shaft, and the winding shaft rotates when the shutter curtain is fed out. Can also be applied to a shutter device or the like that is performed using the weight of the shutter curtain or the weight of the weight member.

  In the present invention described above, when the shutter curtain is drawn out from the take-up shaft and taken up, the structure and type of the take-up shaft are arbitrary. That is, the take-up shaft may be formed by connecting one shaft or a plurality of shafts in series, and for winding and feeding the shutter curtain around the outer periphery of the fixed shaft arranged at the center. The rotating member may be rotatably arranged.

  According to the present invention, it is possible to easily perform installation work of the retaining member on the guide member.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. FIG. 1 is a front view showing the entirety of a shutter device serving as an opening / closing device employing an opening / closing body retaining structure for an opening / closing device according to an embodiment of the present invention. First, the overall structure of the shutter device will be described.

  This shutter device, whose opening and closing body is a shutter curtain, is fed out from a winding shaft 10 that is horizontally disposed in a ceiling space 3 that is partitioned from an indoor space 2 by a ceiling member 1. It is a shutter device for disaster prevention for forming a fire prevention and smoke prevention disaster prevention compartment in the indoor space 2. For this reason, in this embodiment, the shutter curtain is a shutter curtain for disaster prevention. In FIG. 1, the closed end of the shutter curtain 11 drawn out from the winding shaft 10 is landed on the floor surface 2A of the indoor space 2, in other words, the shutter curtain 11 is in the fully closed position or substantially fully closed. The position reached is shown.

  The winding shaft 10 is rotatably supported by a pair of left and right brackets 7 attached to the building frame 6 existing in the ceiling space 3, and the upper end portion of the shutter curtain 11, that is, the winding shaft 10 is supported on the winding shaft 10. Side ends are joined. The end in the left-right direction of the shutter curtain 11, in other words, the end in the width direction that is perpendicular to the opening / closing movement direction (vertical direction) and the thickness direction (front-rear direction) of the shutter curtain 11, It is slidably inserted into the left and right guide rails 30 provided on the building housing 5 such as a wall while being prevented from being detached by an opening / closing body retaining structure described later.

  An opening / closing device 8 having a motor and a brake is attached to one bracket 7 (right side in FIG. 1) of the pair of left and right brackets 7, and this opening / closing device 8 is a power transmission means composed of a chain, a sprocket and the like. 9 is connected to the take-up shaft 10. When a manual lever (not shown) is operated due to the occurrence of a fire or the like, or a sensor (not shown) detects smoke or heat and this detection signal is sent to a control device (not shown) of the switch 8, thereby The brake is released. Thereby, the shutter curtain 11 performs the closing movement which is drawn out from the winding shaft 10 and descends while rotating the winding shaft 10 by its own weight while being guided by the guide rail 30, and the front end portion on the closing side of the shutter curtain 11. Is placed on the floor surface 2 </ b> A and the shutter curtain 11 is fully closed or substantially fully closed, whereby a disaster prevention section is formed in the indoor space 2 by the shutter curtain 11.

  When a switch (not shown) is operated, the motor of the switch 8 is driven, whereby the shutter curtain 11 is wound around the winding shaft 10 by the reverse rotation of the winding shaft 10, and the shutter curtain 11 is moved upward. Is performed while being guided by the guide rail 30. As described above, in the present embodiment, the opening / closing movement direction of the shutter curtain is the vertical direction, and the downward direction is the closing movement direction.

  The determination whether the shutter curtain 11 has reached the fully closed position or the substantially fully closed position and the determination of whether the shutter curtain 11 has reached the fully open position or the substantially fully open position are the limits (not shown) provided in the switch 8. This is done by a signal from the switch.

  In addition, in order to prevent the smoke generated by the fire from flowing out into the opposite space partitioned by the shutter curtain 11, a clogging member (not shown) is incorporated in the lintel member 4 disposed on the ceiling member 1. Yes.

  As shown in FIG. 1, the shutter curtain 11 includes a slat connecting portion 13 formed by connecting a large number of slats 12 in the vertical direction, and a lower end portion of the slat connecting portion 13. And a screen portion 20 formed of a flexible sheet connected to the lower slat 14 and suspended.

  Each slat 12 is formed of a metal plate material having a predetermined thickness. For this reason, the slat connecting portion 13 is a hard portion. The uppermost slat (not shown) that is the upper end of the slat connecting portion 13 is connected to the take-up shaft 10 via a suspension member (not shown).

  All or most of the screen portion 20 is formed of a flexible sheet, which is a thin member having fire resistance and smoke resistance by a glass cloth or silica cloth coated and / or impregnated with a fireproof paint or the like. For this reason, the screen part 20 is a soft part arranged closer to the shutter curtain 11 than the slat connecting part 13 which is a hard part. As shown in FIG. 1, the screen portion 20 is formed of one rectangular sheet that is long in the left-right direction, which is the width direction of the shutter curtain 11.

  2 is a partially enlarged view of the screen portion 20 of the shutter curtain 11 before being arranged in the shutter device, FIG. 3 is a cross-sectional view taken along line S3-S3 of FIG. 1, and FIG. FIG. 5 is a sectional view taken along line S4, and FIG. 5 is a sectional view taken along line S5-S5 of FIG.

  As shown in FIG. 2, the upper end portion 20 </ b> A of the screen portion 20 is fixed to the lower portion of the plate-like member 25 that is long in the width direction of the shutter curtain 11 with a plurality of fixing devices 27 such as bolts, nuts, and screws. The lowermost slat 14 which is the lower end portion of the slat connecting portion 13 is also fastened to the upper portion of the plate-like member 25 by a plurality of fastening tools 28 such as bolts, nuts and screws. For this reason, the upper end portion 20 </ b> A of the screen portion 20 is connected to the lowermost slat 14 via the plate-like member 25.

  As shown in FIGS. 3 and 4, the upper end portion of the lowermost slat 14 is a curled portion 14A, and the lower end portion is a curled portion wound in a direction opposite to the curled portion 14A. 14B. Each slat 12 arranged above the lowermost slat 14 has the same structure as the slat 14.

  The curled portion 14 </ b> A of the slat 14 is inserted and engaged with a curled portion 12 </ b> A that is the lower end portion of the second slat 12 from the bottom that is a slat disposed right above the slat 14.

  On the other hand, the curl portion 14B at the lower part of the slat 14 is housed in a cover member 15 formed by bending a plate material having the same length in the left-right direction as that of the slat 14. The cover member 15 includes an upper surface portion 15A extending in the horizontal direction which is the thickness direction (front-rear direction) of the shutter curtain 11, a hanging portion 15B hanging from the upper surface portion 15A, and an upper surface portion from the lower end of the hanging portion 15B. The lower surface portion 15C extending in the same horizontal direction as 15A and an upright portion 15D rising from the front end portion of the upper surface portion 15A. The curled portion 14B of the slat 14 includes an upper surface portion 15A, a drooping portion 15B, and a lower surface portion 15C. It is stored in the space surrounded by. For this reason, the lower surface portion 15 </ b> C of the cover member 15 forms the lowermost end portion of the slat connecting body 13. Further, the upright portion 15 </ b> D of the cover member 15 is fixed to the slat 14 together with the plate-shaped member 25 by a fixing tool 27 such as a bolt, a nut, or a screw.

  Further, as shown in FIG. 3, the width of the slat 14 on the side where the curled portions 14 </ b> A and 14 </ b> B are formed is the same or substantially the same as the width of the screen 20. A horizontally-long rectangular auxiliary sheet 24 having the above is disposed. As shown in FIG. 4, the lower portion 24B of the auxiliary sheet 24 is folded upward in the opening movement direction of the shutter curtain 11, and the folded lower portion 24B is bonded or sewn to the upper portion of the screen portion 20. Has been. On the other hand, the upper end portion 24A of the auxiliary sheet 24 is inserted into the cover member 15 together with the upper end portion 20A of the screen portion 20, and is sandwiched between the tip end portion of the lower surface portion 15C of the cover member 15 and the plate member 25. Yes. Further, between the upper portion 20C of the screen portion 20 and the upper portion 24C of the auxiliary sheet 24, a rod-like member 26 having a width dimension that is the same as or substantially the same as the width dimension of the plate-like member 25 is disposed. The rod-like member 26 is fixed to the plate-like member 25 with a fastening member 28 such as a bolt, a nut or a screw together with the upper portion 20C of the screen portion 20 and the upper portion 24C of the auxiliary sheet 24.

  As shown in FIG. 5, the lower end portion 20B of the screen portion 20 is folded upward in the opening movement direction of the shutter curtain 11, and the tip of the folded lower end portion 20B is the screen portion 20. It is glued or sewn on. For this reason, the lower end portion 20 </ b> B that is the end portion on the closing side of the screen portion 20 is a bag portion 21 that is long in the left-right direction. In addition, although the edge part of the width direction which is the left-right direction of this bag part 21 is a part with which the two screen parts 20 overlapped, these overlapped parts are adhere | attached or sewn. That is, the end portion in the width direction, which is the left-right direction, of the bag portion 21 is not opened and is a closed portion.

  As shown in FIG. 1, a plurality of (three in FIG. 1) flat plate-shaped flat bars 22 that are weight members of the shutter curtain 11 are provided inside the bag portion 21. They are spaced apart in the width direction. As shown in FIGS. 1 and 2, a portion of the bag portion 21 between the flat bars 22 adjacent to each other is fastened by fastening tools 23 such as bolts, nuts, and screws. Further, as shown in FIG. 1, in the bag portion 21, the vicinity of the left end portion of the flat bar 22 disposed on the leftmost side and the vicinity of the right end portion of the flat bar 22 disposed on the rightmost side. The portion (in other words, the vicinity of both end portions in the width direction of the bag portion 21) is also fastened with fastening tools 23 such as bolts, nuts, and screws. For this reason, each flat bar 22 arranged inside the bag portion 21 is prevented from moving in the left-right direction, which is the width direction of the shutter curtain 11, by these fastening tools 23.

  In FIG. 6, when an obstacle 100 exists in the closing movement direction of the shutter curtain 11 during the closing movement, and the obstacle 100 abuts on the closing end of the bag portion 21 of the screen portion 20 of the shutter curtain 11. It is a figure which shows the state of.

  As shown in FIG. 5, above each flat bar 22 arranged at the bottom inside the bag part 21 of the screen part 20, each flat bar 22 is an upper direction in which the shutter curtain 11 opens. A space that can move in the direction is formed, whereby each flat bar 22 can move in the vertical direction, which is the opening / closing movement direction of the shutter curtain 11, inside the bag portion 21.

  For this reason, as shown in FIG. 6, when the obstacle 100 comes into contact with the closed end portion of the bag portion 21 of the screen portion 20, the flat bar 22 at the bottom inside the bag portion 21 is The inside of the bag part 21 is moved upward. Thereby, the impact which the obstruction 100 receives from the flat bar 22 becomes a small thing compared with the case where the space which can move each flat bar 22 to the upward direction is not formed in the bag part 21 inside. When the obstacle 100 is removed, the flat bar 22 returns to the bottom inside the bag portion 21 which is the original position under its own weight.

  In the present embodiment, an obstacle detection switch (not shown) constituted by a tape switch is provided at the front end portion of the screen portion 20 on the closing side of the bag portion 21 over the entire length or substantially the entire length of the bag portion 21. Attached. As described above, when the obstacle 100 comes into contact with the tip of the screen portion 20 on the closed side of the bag portion 21, the obstacle detection switch attached to the bag portion 21 is activated. An obstacle detection signal indicating that an obstacle has been detected is transmitted to a control device (not shown). After that, the control device to which the obstacle detection signal is transmitted performs a predetermined control process (for example, a process of immediately stopping the closing movement of the shutter curtain 11 or a movement of opening the shutter curtain 11 to a predetermined height position). Thereafter, a process of stopping at that position or a process of repeating the opening movement and the closing movement a predetermined number of times until the obstacle 100 of the shutter curtain 11 is removed is executed.

  The principle and method of obstacle detection for detecting the obstacle 100 existing in the closing movement direction of the shutter curtain 11 is arbitrary. For example, a predetermined guide rail 30 of the left and right guide rails 30 A transmission unit that is arranged at a height position (for example, a position where a person in a state of crawl can pass under the shutter curtain 11) and transmits an obstacle detection signal (light wave, ultrasonic wave, etc.), and the other guide It may be configured to include a receiving unit that is disposed at the predetermined height position of the rail 30 and that receives the obstacle sensing signal transmitted from the transmitting unit. In this example, during the closing movement of the shutter curtain 11, the obstacle detection signal is always transmitted from the transmission unit to the reception unit, and the obstacle detection signal is blocked by the obstacle 100 so that the reception unit is obstructed. It senses object sensing.

  Moreover, in this embodiment, as shown in FIG. 7 which is a sectional view taken along the line S7-S7 of FIG. 4 and FIG. 1 (the display of the building housing 5 is omitted), the metal plate material that is long in the vertical direction is bent. In the opening 31 of the left and right guide rails 30 formed in step S3, when the shutter curtain 11 reaches the fully closed position or the substantially fully closed position, the slat connecting portion 13 does not move any more. A stop member 35 is provided for the purpose. The stop member 35 is formed of a metal rod-like member having a length in the vertical direction, and the length dimension in the vertical direction is such that the shutter curtain 11 is entirely from the floor surface 2A as shown in FIG. It is the length to the lower surface portion 15C of the cover member 15 when it reaches the closed position or the substantially fully closed position.

  For this reason, when the shutter curtain 11 reaches the fully closed position or the substantially fully closed position, both end portions in the width direction of the lower surface portion 15C of the cover member 15 are disposed on the left and right guide rails 30 as shown in FIG. The stop member 35 is placed on the upper end portion 35A. As a result, the slat connecting portion 13 of the shutter curtain 11 is prevented from further closing and moving.

  As shown in FIG. 4, an inclined portion 35 </ b> B that is inclined obliquely downward from the upper end portion 35 </ b> A of the stop member 35 toward the shutter curtain 11 side is formed on the upper portion of the stop member 35. Thereby, the distance L (see FIGS. 4 and 7) between the side surface portion of the stop member 35 and the inner surface portion of the opening 31 of the guide rail 30 facing the stop member 35 is as shown in FIG. The upper end portion 35A of the stop member 35 is the largest (larger than L), gradually decreases from the upper end portion 35A toward the closing movement direction of the shutter curtain 11, and becomes an equal interval L from the middle.

  For this reason, during the closing movement of the shutter curtain 11, the end portion 20 </ b> D (see FIG. 7) of the screen portion 20 in the width direction is not caught by the upper end portion 35 </ b> A of the stop member 35. It can pass smoothly between the inner side surfaces of the 30 opening portions 31.

  In the shutter device for disaster prevention according to the present embodiment, a shutter curtain retaining structure for preventing the end 20D in the width direction of the screen portion 20 of the shutter curtain 11 from coming off from the opening 31 of the guide rail 30 is employed. Yes. Hereinafter, the shutter curtain removal preventing structure will be described.

  As shown in FIG. 7, the edge 32 of the opening 31 that is the outer surface of the left guide rail 30 of the left and right guide rails 30 is formed by bending a metal plate material that is long in the vertical direction. The frame member 42 is attached by adhesion or welding, or a fastening tool such as a bolt, nut, or screw. A part of the side surface portion on the screen portion 20 side of the frame member 42 is opened, and the horizontal cross-sectional shape of the portion 42B excluding the side surface portion 42A attached to the guide rail 30 is on the outer side in the width direction of the screen portion 20. It has an open hook shape. Further, the vertical dimension of the frame member 42 is the same as or substantially the same as the vertical dimension of the guide rail 30 as shown in FIG.

  For this reason, the frame member 42 serves as a retaining member 42 that constitutes the shutter curtain retaining structure according to the present embodiment, and a retaining member (to be described later) is secured to the retaining member 42. . That is, the frame member 42 is provided on the edge 32 of the opening 31 that is the outer surface of the guide rail 30 over the entire length in the vertical direction that is the opening / closing movement direction of the shutter curtain 11 or substantially the entire length. The end portion 20 </ b> D in the width direction of the screen portion 20 serves as a retaining member 42 that prevents the screen portion 20 from coming off from the opening 31 of the guide rail 30.

  The above description is about the retaining member 42 attached to the left guide rail 30 which is one of the left and right guide rails 30. However, as shown in FIG. The edge 32 of the opening 31 (not shown) of the right guide rail 30 that has the same or substantially the same material, shape, and structure as the guide rail 30 has the same or substantially the same material, shape, and structure as the retaining member 42 described above. A retaining member 42 is attached.

  On the other hand, as can be seen from FIG. 7 and FIG. 2 which is a partially enlarged view of the screen portion 20, the width direction end portion 20D inserted into the opening 31 of the left guide rail 30 is excluded from the screen portion 20. The end in the width direction of the portion 20E (in FIG. 2, the right-side portion on the inner side in the width direction of the screen portion 20 relative to the two-dot chain line A, in other words, the externally exposed portion exposed to the outside from the opening 31 of the guide rail 30). As shown in FIG. 7, a frame member 40 formed by bending a metal plate material is fixed to the portion 20F with a fixing tool 41 such as a bolt, a nut, or a screw.

  As shown in FIGS. 1 and 2, one frame member 40 is attached to the height position of the upper end portion of the bag portion 21 in the end portion 20F of the screen portion 20, and the frame member 40 of FIG. As can be seen from FIG. 5 that is partly broken, the horizontal cross-sectional shape is a hook shape that opens to the inner side in the width direction of the screen portion 20.

  For this reason, the frame member 40 is a hook member 40 that is a locking member constituting the shutter curtain retaining structure according to the present embodiment. That is, as shown in FIG. 7, the frame member 40 is a hook member 40 that is a locking member that is locked to a retaining member 42 attached to the left guide rail 30, and this hook member. 40 is slidable in the vertical direction with respect to the retaining member 42.

  The above description is attached to the end portion 20F in the width direction of the portion 20E excluding the end portion 20D in the width direction inserted into the opening portion 31 of the left guide rail 30 in the screen portion 20 of the shutter curtain 11. As shown in FIG. 1, the width direction end inserted into the opening 31 (not shown) of the right guide rail 30 in the screen portion 20 of the shutter curtain 11. One hook member 40 having the same or substantially the same material, shape and structure as the above-described hook member 40 is also attached to the end portion 20F in the width direction in the portion 20E excluding the portion 20D, and the attachment position is also as follows. It is the same or substantially the same as the mounting position of the hook member 40 described above.

  As described above, the shutter curtain retaining structure according to the present embodiment includes the retaining member 42 and the hook member 40 that is a locking member that is latched to the retaining member 42. .

  When the shutter curtain 11 that has reached the fully open position or the substantially fully open position starts to close and move, the hook member 40 attached to the screen portion 20 of the shutter curtain 11 is attached to the guide rail 30. The hook member 40 is inserted into the frame of the retaining member 42 from the upper end of the retaining member 42. Thereafter, the hook member 40 moves within the frame of the retaining member 42 until the shutter curtain 11 reaches the fully closed position or the substantially fully closed position. To do. As a result, the hook member 40 can be locked to the retaining member 42 until the shutter curtain 11 reaches the fully closed position or the substantially fully closed position.

  For this reason, even when the screen portion 20 is bent due to an impact such as wind pressure or an artificial external force applied to the screen portion 20 while the shutter curtain 11 is being closed, the end portion 20F of the screen portion 20 is bent. Since the attached hook member 40 is engaged with the retaining member 42 attached to the guide rail 30, the end portion 20 </ b> D in the width direction of the screen portion 20 is prevented from coming off from the opening 31 of the guide rail 30. The

  Similarly, when the shutter curtain 11 reaches the fully closed position or the substantially fully closed position, or during the opening movement of the shutter curtain 11, an impact such as wind pressure or an artificial external force is applied to the screen portion 20. Even if the screen portion 20 is bent by being added, the hook member 40 is locked to the retaining member 42, so that the end portion 20 </ b> D in the width direction of the screen portion 20 is prevented from coming off from the opening portion 31 of the guide rail 30. The

  In the present embodiment, as shown in FIG. 7, when the end portion 20 </ b> D in the width direction of the screen portion 20 is retained by the locking of the hook member 40 to the retaining member 42 (hook member). The position of the screen portion 20 is the center position of the opening portion 31 of the guide rail 30 in the thickness direction (front-rear direction) of the screen portion 20. The position is closer to the retaining member 42 than M. For this reason, the smoke shielding property in the width direction end portion 20D of the screen portion 20 and the vicinity thereof is such that the position of the screen portion 20 is the position of the center position M in the thickness direction of the screen portion 20 in the opening 31 of the guide rail 30. It will be higher than if it is.

  In the present embodiment described above, the retaining member 42 is not provided inside the opening 31 which is the inside of the guide rail 30 as in the conventional shutter curtain retaining structure, but on the outer surface of the guide rail 30. It is provided at an edge 32 of a certain opening 31. Further, the hook member 40 serving as a locking member that is locked to the retaining member 42 is also an opening of the guide rail 30 in the screen portion 20 constituting the shutter curtain 11 as in the conventional shutter curtain retaining structure. It is not provided at the end portion 20D in the width direction inserted into the portion 31, but is provided at the end portion 20F in the width direction in the portion 20E of the screen portion 20 excluding the end portion 20D.

  For this reason, according to this embodiment, the installation work of the retaining member 42 can be easily performed with respect to the guide rail of the existing disaster prevention shutter device that does not employ the shutter curtain retaining structure. In addition, according to the present embodiment, it is possible to easily perform the installation work of the retaining member 42 on the guide rail even after the guide rail is arranged at the installation site of the newly installed shutter device for disaster prevention.

  Similarly, according to the present embodiment, it is easy to install the hook member 40 that is locked to the retaining member 42 with respect to the shutter curtain of an existing disaster prevention shutter device that does not employ the shutter curtain retaining structure. Will be able to do. In addition, according to the present embodiment, the hook member 40 can be installed on the shutter curtain even after the upper end of the shutter curtain is connected to the take-up shaft through the suspension member at the installation location of the newly-installed shutter device for disaster prevention. Can be easily performed.

  Further, according to the present embodiment, even when it is necessary to replace the existing retaining member 42 and the hook member 40 with new ones, it is possible to easily replace these members.

  In the present embodiment, one hook member 40 is attached to each of the left and right end portions 20F of the screen portion 20 as shown in FIG. A plurality may be attached to. According to this, the end portion 20 </ b> D in the width direction of the screen portion 20 is more reliably prevented from coming out of the opening portion 31 of the guide rail 30.

  In the present embodiment, the hook member 40 is provided only on the screen portion 20 that is a soft portion, but is inserted into the opening 31 of the guide rail 30 in the slat connecting portion 13 that is a hard portion. A hook member (one in the vertical direction) having the same material, shape, and structure as the hook member 40 is also applied to the end 13F in the width direction (see FIGS. 1 and 2) in the portion 13E excluding the end 13D in the width direction. Alternatively, a plurality of them may be provided). As a result, the end portion 13D in the width direction of the slat connecting portion 13 is prevented from coming off from the opening 31 of the guide rail 30.

  FIG. 8 is a horizontal sectional view of another embodiment of the shutter curtain retaining structure, which is the same as FIG. Note that the display of the building frame is also omitted in FIG.

  As shown in FIG. 8, the retaining member 52 constituting the shutter curtain retaining structure according to the present embodiment is long in the vertical direction, similarly to the retaining member 42 of the embodiment shown in FIGS. It is a frame member formed by bending a metal plate, and is bonded or welded to the edge 32 of the opening 31 which is the outer surface of the left and right guide rails 30 or by a fastening device such as a bolt, nut or screw. It is attached. Similarly to the retaining member 42, the retaining member 52 is open at a part of the side surface portion on the screen portion 20 side, and a horizontal section of the portion 52 </ b> B excluding the side surface portion 52 </ b> A attached to the guide rail 30. The shape is a hook shape opened to the outside in the width direction of the screen portion 20. Further, the length dimension of the retaining member 52 in the vertical direction is the same as or substantially the same as the length dimension of the guide rail 30 in the vertical direction, like the retaining member 42. Therefore, the retaining member 52 is also provided on the edge 32 of the opening 31 that is the outer surface of the guide rail 30 over the entire length in the up-down direction, which is the opening / closing movement direction of the shutter curtain 11, or substantially the entire length.

  On the other hand, the locking member to be locked to the retaining member 52 is the same or substantially the same location as the location (the end portion 20F of the screen portion 20) where the hook member 40 of the embodiment of FIGS. Although attached, the locking member of this embodiment is a rotating member 50, unlike the hook member 40 of the embodiment of FIGS. The rotating member 50 is rotatable about a rotation center shaft 51 that is attached to the end portion 20F of the screen portion 20 so as to penetrate therethrough. That is, the rotating member 50 that is a locking member is rotatable about a rotation center axis 51 in which the front-rear direction, which is the thickness direction of the screen portion 20, is an axial direction, and is a frame member. It moves within the frame of the retaining member 52 so as to be able to roll up and down and is locked within this frame.

  In this embodiment, since the locking member is the rotating member 50, even when the rotating member 50 contacts the retaining member 52 when the rotating member 50 moves within the frame of the retaining member 52, By rotating the rotating member 50, the inside of the retaining member 52 can be smoothly moved. That is, the rotating member 50 can move smoothly together with the screen unit 20 without being caught by the retaining member 52 during the opening / closing movement of the shutter curtain 11.

  Further, in this embodiment, when the screen portion 20 is bent due to an impact such as wind pressure or an artificial external force applied to the screen portion 20, the rotating member 50 is locked to the retaining member 52. At this time, the rotating member 50 smoothly engages with the retaining member 52 while rotating.

  1 to 7, a plurality of rotating members 50 may be attached to the left and right end portions 20F of the screen portion 20 in the vertical direction.

  1 to 7, the end portion 13F of the slat connecting portion 13 also has a rotating member having the same material, shape, and structure as the rotating member 50 (there may be one in the vertical direction). May be provided).

  In the embodiment described above, when the shutter curtain 11 is of a type in which a seat plate that is an end member is attached to an end of the screen portion 20 on the closing side, a hook that is a locking member. The member 40 and the rotating member 50 may be attached to this seat plate.

In the embodiment described above, it is desirable to install the retaining member 42 (see FIG. 7 ) and the retaining member 52 (see FIG. 8 ) in a range that does not protrude toward the opening 31 side of the guide rail 30. In other words, it is desirable that the retaining member 42 and the retaining member 52 be installed in a range that does not protrude toward the stop member 35 (see FIGS. 7 and 8 ) disposed inside the opening 31 of the guide rail 30. . This suppresses the enlargement of the gap generated between the end 20D in the width direction of the screen 20 and the guide rail 30, and the smoke generated by the fire is fully closed via the opening 31 of the guide rail 30. This is to more surely prevent outflow to the other space partitioned by the shutter curtain 11 in the state or substantially fully closed state. That is, this is to further improve the smoke shielding properties at the end portion in the width direction of the shutter curtain 11 and the vicinity thereof, particularly at the end portion 20D in the width direction of the screen portion 20 and the vicinity thereof when a fire occurs.

  INDUSTRIAL APPLICABILITY The present invention can be used for an opening / closing body retaining structure employed in an opening / closing device in which opening / closing movement of an opening / closing body such as a shutter curtain is guided by a guide member.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view illustrating an entire disaster prevention shutter device that is an opening / closing device in which an opening / closing body retaining structure for an opening / closing device according to an embodiment of the present invention is employed. It is a partial enlarged view of the screen part which is a soft part which comprises the shutter curtain which is an opening / closing body. It is the S3-S3 sectional view taken on the line of FIG. It is the S4-S4 sectional view taken on the line of FIG. It is S5-S5 sectional view taken on the line of FIG. It is a figure which shows the state which the obstruction contact | abutted at the front-end | tip part by the side of the closing of the screen part of the shutter curtain in the closing movement. FIG. 2 is a cross-sectional view taken along line S7-S7 in FIG. 1 and is a horizontal cross-sectional view of a shutter curtain retaining structure according to an embodiment of the present invention. FIG. 8 is a horizontal sectional view of another embodiment of the shutter curtain retaining structure, which is the same as FIG. 7.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Shutter curtain which is an opening / closing body 13 Slat continuous connection part which is a hard part which comprises an opening / closing body 20 Screen part 20D formed by the thin member which is a soft part which comprises an opening / closing body 20D The edge part 20E of the width direction of a screen part 20F A portion of the screen portion excluding the end portion in the width direction to be inserted into the opening of the guide member 30 A guide rail that is a guide member 31 An opening of the guide rail 32 An edge that is an outer surface of the guide rail 40 A locking member Hook members 42, 52 Retaining members 50 Rotating members serving as locking members M Center position of guide curtain opening in thickness direction of shutter curtain

Claims (9)

An opening / closing body that opens and closes, an opening in which an end of the opening / closing body in the width direction is slidably inserted, a guide member that guides the opening / closing movement of the opening / closing body, and provided in the guide member, A retaining member that prevents the end of the opening / closing body in the width direction from coming off from the opening of the guide member; and a locking member that is provided on the opening / closing body and that is engaged with the retaining member. In the opening / closing body retaining structure of the opening / closing device configured to include:
The retaining member is provided long in the opening / closing movement direction of the opening / closing body at the edge of the opening on the outer surface of the guide member,
The locking member is a portion of the opening / closing body excluding the end in the width direction that is inserted into the opening of the guide member, and the opening / closing corresponding to the retaining member in this portion. Provided at a position in the width direction of the body,
An opening / closing body retaining structure for an opening / closing device , wherein the locking member is movable in an opening / closing movement direction of the opening / closing body with respect to the retaining member . 2. The opening / closing body retaining structure for an opening / closing device according to claim 1, wherein a length dimension of the locking member in the opening / closing movement direction of the opening / closing body is a length dimension of the retaining member in the opening / closing movement direction of the opening / closing body. An opening / closing body retaining structure for an opening / closing device, characterized by being shorter than that.   3. The opening / closing body removal structure of the opening / closing apparatus according to claim 1 or 2, wherein the locking member is a hook member that is slidable on the retaining member. Stop structure.   3. The opening / closing body opening / closing body of the opening / closing apparatus according to claim 1 or 2, wherein the locking member is a rotating member that can roll on the retaining member. Retaining structure.   The opening / closing body retaining structure for an opening / closing device according to any one of claims 1 to 4, wherein the end of the opening / closing body in the width direction is retained by the locking of the locking member to the retaining member. The position of the opening / closing body when the opening / closing body is located closer to the retaining member than the central position of the opening / closing body in the thickness direction of the opening / closing body. Opening and closing body retaining structure.   In the opening / closing body retaining structure for an opening / closing device according to any one of claims 1 to 5, the opening / closing movement direction of the opening / closing body is a vertical direction and a downward direction is a closing movement direction, An opening / closing apparatus comprising: a hard portion; and a soft portion disposed closer to the opening / closing body than the hard portion, wherein the locking member is provided at least in the soft portion. Opening and closing body retaining structure. The opening / closing body retaining structure for an opening / closing apparatus according to claim 6, wherein the opening / closing body is entirely disposed on a portion of the guide member facing the one of the front and back surfaces of the opening / closing body inside the opening. A stop member is provided for preventing the hard portion from closing and moving any more when the closed position or the substantially fully closed position is reached, and the retaining member is disposed on the outer surface of the guide member. An opening / closing body retaining structure for an opening / closing device, wherein the opening / closing body is provided on an edge of the opening opposite to an edge on which the stop member is disposed. The opening / closing body retaining structure for an opening / closing device according to claim 6 or 7 , wherein the hard portion is a slat connecting portion formed by connecting a plurality of slats in the opening / closing movement direction of the opening / closing body, An opening / closing body retaining structure for an opening / closing device, wherein the soft portion is a screen portion formed of a thin member. The opening / closing body retaining structure for an opening / closing device according to any one of claims 1 to 8 , wherein the opening / closing body is a shutter curtain, and the shutter curtain reaches a fully-closed position or a substantially fully-closed position to thereby form a disaster prevention section. An opening / closing body retaining structure for an opening / closing device, wherein the shutter curtain for disaster prevention is formed.

Images