JPWO2007135724A1 - Shutter device - Google Patents

Abstract

Provided is a shutter device that can effectively use a handle for manually opening the shutter curtain when the opening of the structure does not coincide with the center of the shutter curtain in the width direction. The shutter curtain 10 having the flexible screen portion 11 is provided with one or a plurality of handle portions 11a1 for manually opening the shutter curtain 10, and the shutter curtain 10 opens and closes the opening 94 of the structure 90. The shutter curtain 10 is configured such that the shutter curtain 10 is longer in the horizontal width direction than the opening 94 and the center in the horizontal width direction does not coincide with the opening 94, and the handle portion 11 a 1 The portion 94 is disposed corresponding to the center in the width direction.

Description

  The present invention relates to a shutter device including a handle portion that allows a shutter curtain in a closed state to be manually opened, and in particular, an elevator shaft by partitioning a space on the front side of an elevator door in the event of an emergency such as a fire. The present invention relates to a shutter device suitable as a fireproof smokeproof shutter device that prevents a flame, smoke or the like from entering from the side to the indoor side.

  The elevator shaft that secures the passage in the vertical direction of the elevator lift box is formed vertically in the building where the elevator is installed and in structures such as underground shopping centers. There is a risk of becoming. For this reason, a screen shutter device may be installed on the front side of the elevator door in order to prevent flames, smoke, and the like from entering the indoor side of the upper and lower floors via the elevator shaft.

For example, in the invention described in Patent Document 1, the opening (6) of the structure that is opened and closed by the elevator door (7) is formed by the shutter curtain (30) made of a flexible sheet in the event of a fire or the like. It is configured to close.
In this conventional invention, when the shutter curtain (30) is provided with a handle (handle portion 60A) and a person in the lifting box (1) is closed so as to lift the handle (handle portion 60A). The shutter curtain (30) is opened so that it can escape.

However, according to the above prior art, as shown in FIG. 19, the guide rail 102 must be installed so as to avoid the elevator operation panel 101 disposed on the inner wall surface 110 of the building. The dimension may be significantly longer than the width dimension of the opening 104 of the structure.
In such a case, one or both of the left and right handle portions 105, 105 disposed near the center of the shutter curtain 103 in the width direction are located between the shutter curtain 103 and the building inner wall surface 110, and the handle The unit 105 may become unusable.
JP 2005-155270 A

  The present invention has been made in view of the above-described conventional circumstances, and the problem is that the shutter curtain is manually opened when the center of the opening of the structure and the shutter curtain do not coincide with each other in the widthwise direction. It is an object of the present invention to provide a shutter device that can effectively use a handle for the purpose.

  In order to solve the above-mentioned problems, a first invention is provided such that a shutter curtain having a flexible screen portion is provided with one or a plurality of handle portions for manually opening the shutter curtain. In the shutter device configured to open and close the opening, the shutter curtain is configured to be longer in the lateral width direction than the opening, and configured so that the center in the lateral width direction does not coincide with the opening. The opening is disposed corresponding to the center in the width direction.

Here, the shutter curtain includes a mode in which substantially the entire region is formed of a flexible screen portion, and a mode in which a portion thereof is formed of a flexible screen portion and the other portion is formed of slats, panels, pipes, and the like. .
Further, the flexible screen portion may be a flexible sheet material, and preferably flame retardant or non-flammable, such as silica cloth, glass cloth, or fluorine-treated vinyl chloride resin. A flexible sheet material having fire resistance such as the above.

The structure is a structure to which the shutter device of the present invention is installed in detail. This structure includes a house, a building, a warehouse, a factory, an underground mall, a tunnel, a vehicle bed, and the like.
The shutter device of the present invention may be installed in any of the structures, but as a particularly preferable installation mode, in a structure provided with an elevator, installed on the indoor side of the opening communicating with the elevator shaft, Prevents smoke and flames from circulating between the elevator shaft and the indoor space in the event of a fire or other disaster.

Moreover, the said handle part may be directly fixed with respect to the said shutter curtain, and may be indirectly fixed with respect to the said shutter curtain through another member etc.
As a preferable example of this handle portion, it is provided with a rod-shaped member that extends in the lateral width direction along the front or back portion of the shutter curtain, and at two locations on both ends of the rod-shaped member, and at least one location between these two locations. Are fixed to the shutter curtain, so that a part of the bar-shaped member between adjacent fixing points is used as the handle portion.
Further, as another example of the handle portion, a substantially strip-like sheet-like object that can be grasped by hand, a wire, a string, or the like is directly or indirectly attached to the front or back portion of the shutter curtain. The fixed aspect etc. are mentioned.

In addition, it is preferable that two of the handle portions are provided so as to be grasped by both hands, but one or three or more may be provided.
For example, when two handle portions are provided, the center between the two handle portions may correspond to the center of the opening in the width direction.
Further, when a single handle portion is provided, the center in the width direction of the single handle portion may correspond to the center in the width direction of the opening.
When three or more handle portions are provided, the center in the width direction of the three or more handle portions may correspond to the center in the width direction of the opening.
Further, a plurality of handle portions may be provided at different positions in the opening and closing direction. In this case, the center in the width direction of the plurality of handle portions may correspond to the center in the width direction of the opening. Alternatively, only one or a plurality of handle portions at arbitrary height positions among the plurality of handle portions may be configured such that the center in the width direction corresponds to the center in the width direction of the opening.

  In the second invention, the shutter curtain having the flexible screen portion is provided with one or more handle portions for manually opening the shutter curtain, and the opening portion of the structure is opened and closed by the shutter curtain. In this shutter device, the bar-shaped member extending in the widthwise direction of the shutter curtain is partially covered by the holding sheet fixed to the shutter curtain, so that the bar-shaped member not covered by the holding sheet is exposed. In the shutter device having a portion as the handle portion, the holding sheet is provided over substantially the entire length of the rod-shaped member, and includes a plurality of cut portions spaced in the widthwise direction. By being selectively inserted into the cut portion, it is held by the holding sheet. And having cracking portion a, and said holding the finger receiving portion which is exposed without being covered by the sheet.

  In the third invention, the shutter curtain having the flexible screen portion is provided with a handle portion for manually opening the shutter curtain, and the opening portion of the structure is opened and closed by the shutter curtain. In the shutter device, at least three or more of the handle portions are arranged at intervals so as to extend over substantially the entire length of the shutter curtain in the width direction.

  In the fourth invention, the shutter curtain having the flexible screen portion is provided with one or more handle portions for manually opening the shutter curtain, and the opening portion of the structure is opened and closed by the shutter curtain. The shutter device as described above includes a bar-shaped member extending in the width direction of the flexible screen portion, and both end portions of the bar-shaped member are respectively fixed to the shutter curtain, and other than the both end portions of the bar-shaped member. By making the range detachable from the shutter curtain at an arbitrary location, a location other than the optional fastening location on the rod-like member is used as the handle portion.

Here, as a preferable means for making the range other than the both end portions of the rod-like member detachable from the shutter curtain at an arbitrary position, a piece of a velvet fastener is placed on the front or back of the shutter curtain. The other velvet fastener is covered so as to be partially held between both ends of the rod-like member, and the other piece is detachably fixed to the one piece. The aspect made like this is mentioned.
Further, as another example, one piece of a velvet fastener is fixed to the front or back portion of the shutter curtain across the lateral width direction, and the other piece is directly attached to a part between both end portions of the rod-like member. The aspect fixed to is mentioned.
Furthermore, as another example, a mode in which a plurality of engaging / disengaging tools such as buttons and hooks are used in place of the velvet fastener may be employed.

  According to a fifth aspect of the present invention, there is provided a locked sheet that is secured to the flexible screen portion in the lateral width direction, and a latch that is detachably locked to an arbitrary portion of the locked sheet. The rod-shaped member is provided in the width direction along the locked sheet, and a plurality of the engagement / disengagement holding sheets are disposed at intervals in the width direction. The rod member is held by the shutter curtain so as to hold the rod member, and the handle portion is an exposed portion that is not held by the engagement / disengagement holding sheet in the rod member.

  In the sixth invention, the shutter curtain having the flexible screen portion is provided with one or a plurality of handle portions for manually opening the shutter curtain, and the opening portion of the structure is opened and closed by the shutter curtain. In the shutter device thus configured, the handle portion is configured to be movable in the lateral width direction with respect to the shutter curtain.

Here, the means for enabling the handle portion to move in the horizontal width direction is, for example, a rod-like member fixed to the front or back portion of the shutter curtain in the horizontal width direction and hooked in an annular shape with respect to the rod-like member. By attaching the auxiliary member, the handle auxiliary member may be moved along the rod-shaped member.
As another example of this means, a member having a substantially convex section or a substantially concave section extending in the width direction is provided on the front or back of the shutter curtain so that the member can move in the width direction relative to the member. An embodiment in which a member having a substantially concave cross section or a substantially convex cross section is fitted, and the fitted member is used as the handle member.

  In the seventh invention, the handle portion includes a bar-shaped member extending in the width direction of the flexible screen portion, and both end portions of the bar-shaped member are fixed to the shutter curtain, respectively. On the other hand, a handle auxiliary member is provided in an annular shape so as to be movable in the lateral width direction.

  The eighth invention is characterized in that a part of the handle assisting member is sandwiched between the shutter curtain and the rod-shaped member.

Since the present invention is configured as described above, the following effects can be obtained.
According to the first invention, when the opening of the structure and the center of the width direction of the shutter curtain do not coincide with each other, the handle portion for manually opening the shutter curtain can be used effectively.

Moreover, according to 2nd invention, a part of rod-shaped member exposed between two notch parts in a some notch part is used as a handle part.
Accordingly, the position of the handle portion in the width direction can be changed depending on how the rod-shaped member is inserted into the plurality of cut portions.

Moreover, according to 3rd invention, a 3 or more handle part can be selectively used by the positional relationship of the width direction of a shutter curtain and the opening part of a structure.
Therefore, the handle portion can be used effectively regardless of the positional relationship in the width direction between the shutter curtain and the opening of the structure.

According to the fourth invention, the rod-shaped member is fixed to the shutter curtain at an appropriate location, and a part of the rod-shaped member other than the fixed location is made to correspond to the center in the lateral width direction of the opening of the structure. It can be a handle. And since the said fastening location is detachable, the fastening location can be changed easily.
Therefore, it is easy to make the position of the handle portion in the horizontal width direction correspond to the site situation or change it.

  Furthermore, according to the fifth aspect, the configuration in which the position of the handle portion in the width direction can be arbitrarily set can be a specific structure with good productivity.

  Moreover, according to 6th invention, a handle part can be moved according to the center of the width direction of the opening part of a structure, and the correspondence for every field can be improved more.

  Furthermore, according to the seventh aspect, the structure that allows the handle portion to be moved in the lateral width direction can be a simple and good specific structure.

  Further, according to the eighth invention, since the part of the handle assisting member is sandwiched between the shutter curtain and the rod-shaped member, the handle assisting member is not intended in the lateral width direction due to vibration during the closing operation. Can be prevented from moving to.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First, the structure 90 which is the installation target of the screen shutter device A according to the present invention will be described. As shown in FIGS. 1 to 4, the structure 90 includes a wall 93 between an elevator shaft 91 that is a passage through which the elevator lifting / lowering box 1 (see FIG. 4) moves up and down and an indoor space 92.
The wall 93 has an opening 94 having a substantially rectangular shape in front view that allows the elevator shaft 91 and the indoor space 92 to communicate with each other.
According to the illustrated example, the operation panel 3 for raising and lowering the lifting / lowering box 1 and displaying the number of floors with the lifting / lowering box 1 is displayed on the right side of the opening 94 according to the illustrated example. Is provided.
In addition, on the side of the elevator shaft 91 in the opening 94, a hanging door type elevator door 2 is disposed so as to open and close in the lateral width direction (the left-right direction in FIGS. 1 to 3).

The screen shutter device A according to the present invention is installed on the front side of the elevator door 2 and along the indoor side surface of the wall 93.
This screen shutter device A includes a shutter curtain 10 provided so as to open and close the opening 94, guide rails 20 and 20 for guiding the shutter curtain 10 in the opening and closing directions on both sides in the width direction, and the shutter curtain 10 And a winding device 30 for winding and unwinding on the opening direction side.

  The shutter curtain 10 is connected to the flexible screen portion 11 formed so as to cover the opening portion 94, the operation panel 3 and the like from the indoor side, and the end portion in the closing direction of the flexible screen portion 11 in the lateral width direction. The seat plate member 12 is provided.

The flexible screen portion 11 is made of silica cloth having fire resistance and relatively light weight. In addition, the material of this flexible screen part 11 is not limited to the said aspect, As another example, the synthetic resin containing glass cloth, the vinyl chloride resin sheet material which performed the fluorine processing, and glass fiber It is also possible to use a sheet material or the like. Furthermore, when the screen shutter device A is not used for the purpose of flameproofing, the material of the flexible screen portion 11 may be a material that does not have fire resistance.
The flexible screen portion 11 may be configured by connecting a plurality of sheet materials in a vertical direction, a horizontal direction, an oblique direction, or the like, or may be configured by a single sheet material.

The dimension of the flexible screen portion 11 in the horizontal width direction is set to a length that covers at least the opening 94 and the operation panel 3.
That is, if the dimension in the width direction of the flexible screen 11 is a dimension that covers only the opening 94, a guide rail 20 described later is disposed on the opening 94 side of the operation panel 3, and the operation is performed. The operability with respect to the panel 3 may be deteriorated, or the guide rail 20 may interfere with the operation panel 3 and may not be installed. However, such a problem is solved by the screen shutter device A according to the present embodiment. The problem is solved by increasing the dimension of the flexible screen portion 11 in the horizontal width direction.

Reinforcing sheets 11d (see FIGS. 8 and 9) made of the same material as that of the flexible screen portion 11 are sewn across the opening and closing directions at both ends in the width direction of the flexible screen portion 11, respectively. A plurality of retaining members 11e are penetrated and fixed at predetermined intervals along the reinforcing sheet 11d.
Each retaining member 11e is configured such that, when the flexible screen portion 11 is bent, the end portion in the horizontal width direction of the flexible screen portion 11 is engaged with the guide rail 20, and the end portion is the guide rail. Prevents the separation from 20 in the width direction.

  Further, at a predetermined height position on the closing direction side of the flexible screen portion 11, a handle portion 11a1 is configured by the rod-shaped member 11a, the holding sheets 11b1, 11b2, 11b3, and the like. The height position is, for example, a position that is appropriately set so that a person on a wheelchair can easily put the hand and open the shutter curtain 10.

The bar-shaped member 11a may be a bar made of a material having a relatively high bending strength, such as metal, wood, or a hard resin material, and more preferably a round bar made of a metal material having good fire resistance.
The rod-shaped member 11a is preferably a rod that is not the same color as the flexible screen portion 11 from the viewpoint of improving visibility.
And this rod-shaped member 11a is formed slightly shorter than the full length of the flexible screen part 11 in the horizontal width direction.
In addition, according to a preferable example of the present embodiment, the rod-shaped member 11a is a rod having a substantially circular cross section so that it can be easily grasped by hand, but other cross-sectional shapes such as a substantially elliptical cross section and a substantially polygonal cross section are used. It can also be a bar.

According to the present embodiment, each of the holding sheets 11b1, 11b2, and 11b3 is a substantially strip-shaped sheet material made of the same material as the flexible screen portion 11, but is made of a flexible sheet material made of another material. Is also possible.
As shown in FIG. 1, the holding sheet 11 b 2 at the center in the width direction is arranged so that the center in the width direction substantially coincides with the center in the width direction of the opening 94.
The holding sheet 11b1 on one end side in the width direction is sewn to one end side in the width direction of the flexible screen portion 11, and the holding sheet 11b3 is sewn to the other end side.
Appropriate spaces are provided between the holding sheet 11b1 and the holding sheet 11b2 and between the holding sheet 11b2 and the holding sheet 11b3, respectively, which constitute the handle portion 11a1.

  As shown in FIGS. 8 and 9, each of the holding sheet 11b1 and the holding sheet 11b3 has an upper end side and a lower end side sewn to the flexible screen unit 11, and further, the flexible screen unit. 11 is sewn to the flexible screen portion 11 only on the lower side portion of the side portion closer to the lateral width direction end portion, so that an insertion hole 11c for inserting the rod-like member 11a is formed in the upper portion thereof. Forming.

  The holding sheet 11b2 is disposed at a predetermined interval with respect to each of the holding sheet 11b1 and the holding sheet 11b3, and only the upper end side and the lower end side thereof are fixed to the flexible screen portion 11. Yes.

If an example of the procedure for inserting the rod-shaped member 11a into the holding sheets 11b1, 11b2, 113 is described in detail, as shown in FIG. 8, first, one end side of the rod-shaped member 11a is inserted into the insertion hole of the holding sheet 11b3 on one end side in the lateral width direction. 11c, and further inserted into the upper portion of the holding sheet 11b2 and the holding sheet 11b1.
Next, as shown in FIG. 9, the rod-shaped member 11a is disposed on the lower side in the holding sheets 11b1, 11b2, and 11b3, and the state is maintained by the weight of the rod-shaped member 11a. Therefore, since the rod-shaped member 11a is located between the sewn portions 11b11 and 11b31 on both side sides of the holding sheet 11b1 and the holding sheet 11b3, movement in the lateral width direction is prevented.

  And between the holding sheet 11b1 and the holding sheet 11b2, and between the holding sheet 11b2 and the holding sheet 11b3, a handle portion 11a1 is constituted by a partially exposed rod-like member 11a.

The seat plate member 12 is connected to the end portion in the closing direction of the flexible screen portion 11 over substantially the entire length in the width direction.
As shown in FIG. 5, the seat plate member 12 includes a plurality of weight bodies 12a, 12a, 12a that are superposed in the thickness direction of the shutter curtain 10 (left and right direction according to FIG. 5), and these weight bodies 12a. Fixed brackets 12b and 12b disposed so as to be sandwiched from both sides in the thickness direction, a movable bracket 12c suspended so as to move in the opening and closing direction relative to these fixed brackets 12b and 12b, and one fixed bracket 12b A locked member 12d that is fixed to the automatic closing device 36, and an automatic return preventing mechanism 12e that prevents the automatic closing device 36 from automatically returning when the shutter curtain 10 is opened with force. It has.

The movable bracket 12c is formed in a substantially frame shape as shown in FIG. 5 and is suspended so as to slide in the opening / closing direction (vertical direction in the illustrated example) relative to the fixed brackets 12b and 12b. 10 are provided so as to cover substantially the entire length in the width direction.
The movable bracket 12c moves in the opening direction relative to the weight body 12a and the fixed bracket 12b when the movable bracket 12c comes into contact with the contact target portion p on the closing direction side.
Therefore, according to this configuration, even when the force in the thickness direction is applied to the flexible screen portion 11 in the fully closed state due to wind pressure or the like, and the seat plate member 12 is pulled in the lifting direction by the force. If the amount of lift of the fixed bracket 12b is less than the amount of movement of the movable bracket 12c that has been moved in the opening direction relative to the weight body 12a and the fixed bracket 12b in advance, the movable bracket in the seat plate member 12 is provided. Since the state where 12c is in contact with the contact target site p can be maintained, it is possible to prevent the closing performance of the shutter curtain 10 from being impaired.

Moreover, the to-be-latched member 12d is provided in the approximate center of the width direction of the seat board member 12, and as shown in FIG.
The locked member 12d engages / disengages the locked piece 12d1 protruding in the thickness direction of the shutter curtain 10 with respect to the automatic closing device 36.

Further, as shown in FIGS. 5 and 6, the automatic return prevention mechanism 12 e swings between a storage position facing the opening direction of the shutter curtain 10 and a projecting position protruding in the thickness direction of the shutter curtain 10. The piece 12e1 is configured to swing.
The swinging piece 12e1 is accommodated in the outlet member 37 in the upward non-contact position, and is formed so as to be in contact with the lower end of the outlet member 37 in the lateral protruding position.

According to the automatic return prevention mechanism 12e, when the seat plate member 12 is extended downward from the outlet member 37, the swing piece 12e1 locked by the inner surface of the outlet member 37 is automatically caused by its own weight (weight). Thus, it swings downward to reach the protruding position.
Therefore, even if the shutter curtain 10 in the fully closed state is opened with force, the rocking piece 12e1 at the protruding position comes into contact with the lower end of the outlet member 37, and thus the locked piece portion of the locked member 12d. It can be prevented that 12d1 is engaged with the automatic closing device 36 and the shutter curtain 10 is not reclosed.
That is, after the swinging piece 12e1 comes into contact with the outlet member 37 as described above, the shutter curtain 10 is closed again by its own weight, and the movable bracket 12c of the seat plate member 12 is moved to the contact target portion p. The contact is maintained and the closing property is maintained.

Further, the return rod 40 is used to return the shutter curtain 10 closed for maintenance or the like to the fully opened state.
As shown in FIG. 7, the return bar 40 includes a bar main body 41 extending in the opening and closing direction and an engaging portion 42 fixed to one end of the bar main body 41.

The engaging portion 42 has a substantially concave shape including a receiving portion 42a that receives the seat plate member 12 from below and two holding pieces 42b and 42c that are provided on both sides of the seat plate member 12 in the thickness direction. Is formed.
One holding piece 42b is provided along the side of the movable bracket 12c in the seat plate member 12 and so as not to interfere with the locked member 12d and the automatic return prevention mechanism 12e.
As shown by a two-dot chain line in FIG. 7, the other holding piece 42c is provided so as to abut against the side portion of the swinging piece 12e1 in the storage position and maintain the swinging piece 12e1 in the storage position.

According to the return rod 40 having the above-described configuration, the operator or the like manually opens the shutter curtain 10 halfway and raises the automatic return prevention mechanism 12e by hand to the storage position (see FIG. 6). If the engaging portion 42 is engaged with the seat plate member 12 including the automatic return prevention mechanism 12e from below, the swing piece 12e1 is maintained at the storage position by the other holding piece 42c and two holding pieces are held. The seat plate member 12 can be stably held between the pieces 42b and 42c.
Thereafter, when the operator or the like moves the rod body 41 so as to lift upward, the entire seat plate member 12 is accommodated in the outlet member 37 as shown in FIG. The shutter curtain 10 can be maintained in a fully opened state by being engaged with the automatic closing device 36.

Each of the left and right guide rails 20 and 20 has a cross-sectional shape that surrounds the end portion of the flexible screen portion 11 in the width direction. 30.
As shown in FIG. 2, one (left side in the illustrated example) guide rail 20 is fixed at a position relatively close to the opening 94 in the wall 93, and the other (right side in the illustrated example) guide rail 20 is the wall. At 93, the operation panel 3 is avoided and is fixed at a position away from the opening 94.

Accordingly, the shutter curtain 10 is longer in the lateral width direction than the opening 94, and the center of the shutter curtain 10 in the lateral width direction does not coincide with the center c of the opening 94 in the lateral width direction, so that the shutter curtain 10 moves toward the operation panel 3 side. Arranged in a shifted state.
Further, the left and right handle portions 11 a 1 and 11 a 1 are arranged so that the center in the width direction between them substantially coincides with the center c in the width direction of the opening 94.

  The winding device 30 includes a winding body 31 that winds and unwinds the shutter curtain 10, left and right shaft main bodies 32a and 32b that support the winding body 31 from the shaft core side, and the shaft main bodies 32a, Left and right bearing brackets 33a and 33b that support the shaft 32b, a biasing member 34 that biases the winding body 31 in the winding direction, a speed reduction device 35 that suppresses rotation of the one shaft body 32b in the extending direction, and a fire An automatic closing device 36 that automatically feeds out the shutter curtain 10 in response to an emergency signal such as time and the like, and an outlet member 37 (see FIG. 5) disposed in the lateral width direction below the winding body 31. It is comprised so that the shutter curtain 10 may be sent out.

According to the illustrated example, the one shaft main body 32a is disposed on the left side of the winding body 31, and rotatably supports the winding body 31 via a bearing or the like, and is fixed to the left bearing bracket 33a. A biasing member 34 is provided around the periphery.
According to the illustrated example, the other shaft main body 32b is disposed on the right side of the winding body 31, is integrally fixed to the winding body 31, and is rotated by a right bearing bracket 33a via a bearing or the like. It is supported freely, and its protruding end is connected to the reduction gear 35.

The biasing member 34 is an elastic body such as a spring, for example, and one end side thereof is fixed to the winding body 31 so as to bias the winding body 31 in the winding direction relative to the shaft body 32a. At the same time, the other end is fixed to one shaft body 32a.
Therefore, when the shutter curtain 10 is drawn out from the winding body 31, the upper end side of the flexible screen portion 11 is pulled upward by the urging member 34, and the lower end side of the flexible screen portion 11 is the weight of the seat plate member 12. Will be pulled downwards.
Therefore, the flexible screen portion 11 when being drawn out can be maintained in a tensioned state with little bending, and as a result, the closing property when fully closed by the shutter curtain 10 can be maintained well.
The urging force by the urging member 34 is set to be smaller than the force in the feeding direction due to the weight of the shutter curtain 10 (including the seat plate member 12). Therefore, the shutter curtain 10 can be automatically closed by its own weight and can be opened by a relatively light manual operation.

The speed reducer 35 is connected so that rotational force is transmitted from the winding body 31, and is fixed to the outside of the bearing bracket 33.
The speed reducer 35 is configured to reduce the rotation of the shaft main body 32b by generating friction between the two members by the centrifugal force transmitted from the winding body 31, or the other shaft main body 32b by viscous fluid friction. Any known mode such as a mode in which rotation is decelerated may be used.
In the reduction gear 35, a clutch mechanism that disconnects the aforementioned speed reduction structure when the shaft body 32b rotates in the winding direction and connects the speed reduction structure when the shaft body 32b rotates in the feeding direction. (Not shown) is provided.
As an example of the connection structure between the reduction gear 35 and the winding body 31, the reduction gear 35 and the winding body 31 are connected to a shaft coupling (for example, a joint called a coupling or the like) having a shaft center correcting structure. (Members) may be connected. According to this configuration, even when the shaft centers of the speed reduction device 35 and the winding body 31 are slightly shifted, the shift of the shaft center is corrected and the braking force of the speed reduction device 35 is transmitted to the winding body 31. Can do.

  Further, the automatic closing device 36 has a locking piece 36a by a solenoid that is energized in response to an emergency signal at the time of a disaster (including a case of a signal transmitted automatically and a case of a signal transmitted manually). This is a known mechanism that is rotated (see FIG. 5).

  The locking piece 36a is integrally formed from a release protrusion 36a1 protruding toward the shutter curtain 10 on the upper side and a locking protrusion 36a2 protruding toward the shutter curtain 10 on the lower side.

The automatic closing device 36 rotates the locking piece 36a according to an emergency signal or the like, thereby locking the locking projection 36a2 of the locking piece 36a and the locked member 12d on the shutter curtain 10 side. The state is released (see the broken line in FIG. 5).
Then, the shutter curtain 10 is automatically closed by its own weight.

  Further, when the locking protrusion 36a1 is pushed upward by the locked member 12d when the automatic closing device 36 moves upward, the locking piece 36a is rotated in the reverse direction, the original locking state is obtained. (Refer to the portion of the two-dot chain line in FIG. 5).

Therefore, according to the screen shutter device A having the above configuration, when the shutter curtain 10 is fully closed due to a fire or the like, and an evacuee or the like tries to evacuate from the lifting box 1 side through the opening 94 to the indoor space 92 side. If the evacuees hold the left and right handle portions 11a1 and 11a1 on the center side in the width direction of the opening 94 and lift the handle portions 11a1 and 11a1, the shutter curtain 10 is opened. Well, it can be easily opened by manual operation.
After the evacuees evacuate to the indoor space 92 side, the shutter curtain 10 is automatically closed by its own weight.

Next, another example of the handle portion in the screen shutter device A will be described. In each aspect described below, the same reference numerals used in the screen shutter device A are used again for portions that are substantially the same as those in the screen shutter device A, and a detailed description thereof is omitted.
The mode shown in FIG. 10 has a configuration in which the holding sheets 11 b 1, 11 b 2, and 11 b 3 in the screen shutter device A are replaced with the holding sheet 13.

The holding sheet 13 is a substantially strip-shaped sheet material made of the same material as the flexible screen portion 11, and is formed so as to extend over substantially the entire length of the flexible screen portion 11 in the lateral width direction. The holding sheet 13 can be a flexible sheet material made of a material different from that of the flexible screen portion 11.
The holding sheet 13 is provided with a plurality of cut portions 13a at predetermined intervals in the width direction. The dimension between the adjacent notch parts 13a and 13a is suitably set so that the handle part 11a1 (refer FIG.11 and FIG.12) may be comprised.
The holding sheet 13 has an upper end side and a lower end side sewn to the flexible screen portion 11, and further, only the lower portions at both end portions are sewn to the flexible screen portion 11. In the upper portion, insertion holes 11c and 11c for inserting the rod-like member 11a are formed.

  The rod-shaped member 11a is inserted into the holding sheet 13 from any one of the insertion holes 11c, and is selectively inserted through the plurality of cut portions 13a so as to be held by the holding sheet 13. And the handle portions 11 a 1 and 11 a 1 exposed without being covered by the holding sheet 13.

That is, for example, when the opening portion 94 of the structure 90 is disposed on the right side with respect to the shutter curtain 10, as shown in FIG. 11, the rod-shaped member 11a is inserted between the right-side cut portions 13a and 13a in the holding sheet 13. Is exposed, and the exposed portion is used as the handle portion 11a1.
Further, for example, when the opening portion 94 of the structure 90 is arranged on the left side with respect to the shutter curtain 10, as shown in FIG. 12, the rod-like member 11a is inserted between the left-side cut portions 13a and 13a in the holding sheet 13. Is exposed, and the exposed portion is used as the handle portion 11a1.

11 and 12, the two handle portions 11a1 are arranged so that both hands can be hung on the handle portions 11a1 and 11a1, but three or more handle portions 11a1 are provided. Thus, the evacuees may selectively grasp the handle portion 11a1. It is also possible to provide a single handle 11 a 1 corresponding to the center of the opening 94.
Moreover, according to the aspect shown in FIG.11 and FIG.12, although the rod-shaped member 11a is exposed from between the adjacent notch parts 13a and 13a, as another example, the single or several notch part 13a is provided. The bar-shaped member 11a may be exposed from between the notches 13a and 13a on both sides, and the width of the handle portion 11a1 may be increased.

  In the embodiment shown in FIG. 13, the holding sheets 14 are arranged with four or more (six according to the illustrated example) at intervals in the width direction, and each of them holds the rod-shaped member 11a. It is fixed to the flexible screen portion 11. The fastening structure of the holding sheets 14 is substantially the same as the above-described embodiment, and the insertion holes 11c for inserting the rod-like members 11a are formed in the holding sheets 14 on both ends in the lateral width direction.

According to the aspect shown in FIG. 13, the handle portions 11a1 between the adjacent holding sheets 14 and 14 are arranged in at least three or more (five in the illustrated example) in the lateral width direction.
Therefore, the evacuees and the like can selectively hold the plurality of handle portions 11a1 to open the shutter curtain 10.

Further, in the embodiment shown in FIG. 14, the rod-shaped member 11 a extending in the horizontal width direction has the holding sheet in each of two locations on both ends thereof and one location corresponding to the approximate center of the flexible screen portion 11 in the horizontal width direction. 14 is fixed to the flexible screen portion 11, and a handle portion 11 a 1 that is relatively long in the lateral width direction is configured between the adjacent holding sheets 14 and 14.
According to this aspect, the position where the refugee or the like grabs the handle portion 11a1 can be selected in the lateral width direction. For example, as shown in FIG. 14, the refugee or the like moves the right side portion of the right handle portion 11a1. It is possible to grasp, to grasp a desired portion in the left hand-held portion 11a1, or to grasp the left and right hand-held portions 11a1 and 11a1 with both hands.

  In the illustrated example, it is possible to omit the holding sheet 14 on the center side and to allow the handle portion 11a1 to continue between both ends of the flexible screen portion 11, but in this case, the rod-shaped member 11a is evacuated. It is preferable that at least one holding sheet 14 is provided between the holding sheets 14 and 14 on both end sides as shown in FIG.

  Further, in the embodiment shown in FIG. 15, both end portions of the rod-shaped member 11 a extending in the lateral width direction are fixed to the flexible screen portion 11 by the holding sheet 14, and a range other than the both end portions of the rod-shaped member 11 a is set. In addition, by making the flexible screen portion 11 detachable at an arbitrary location, a location other than the fastening location on the rod-shaped member 11a is used as the handle portion 11a1.

If it demonstrates in detail, the to-be-latched sheet | seat 15 will be fixed to the flexible screen part 11 over the horizontal width direction. One or more detachable engaging / disengaging sheets 16 are engaged with the engaged sheet 15, and the engagement / disengagement retaining sheet 16 allows the central portion of the rod-shaped member 11 a to be engaged with the engaged sheet 15. Retained.
And the exposed part which is not hold | maintained by the engagement / disengagement holding | maintenance sheet | seat 16 in the rod-shaped member 11a is used as the handle part 11a1.
The locked sheet 15 and the engagement / disengagement holding sheet 16 are one piece and another piece of a so-called velvet fastener (sometimes referred to as a hook-and-loop fastener).

Therefore, according to the aspect shown in FIG. 15, the handle portion 11 a 1 can be made a desired location in the lateral width direction by the fastening location of the engagement / disengagement holding sheet 16.
That is, for example, if the opening portion 94 of the structure 90 is on the right side of the shutter curtain 10, the right side of the rod-shaped member 11 a is fixed on the locked sheet 15 by the engagement / disengagement holding sheet 16. On the both sides of the engagement / disengagement holding sheet 16, the right-side handle portions 11 a 1 and 11 a 1 can be arranged.
In addition, according to FIG. 5, although the handle part 11a1 is made into three places by using two engagement / desorption holding sheets 16, the handle part 11a1 is made into two places using one or more engagement / desorption holding sheets 16 or three or more. Or four or more locations.

Further, in the embodiment shown in FIG. 16, a handle assisting member 11f is annularly attached to the rod-shaped member 11a to constitute a handle portion 11a2.
The handle assisting member 11f is a long member made of a flexible material, and has a through hole 11f1 through which the rod-like member 11a is inserted on one end side and the other end side, respectively.
For example, the handle assisting member 11f may be formed by overlapping a plurality of strip-shaped sheet materials made of the same material as the flexible screen unit 11 to increase the strength. May be a belt-like sheet material of different materials, a wire, a string, or the like.
The handle assisting member 11f can be applied to the exposed portion of the bar-shaped member 11a in the flexible screen portion 11 shown in any of FIGS.
According to the handle portion 11a2 provided with the handle assisting member 11f, the handle assisting member 11f protrudes toward the front side with respect to the refugee or the like, so that the handle assisting member 11f can be easily grasped, and thus the closed shutter. The operation of opening the curtain 10 manually can be quickly performed.

In addition, the embodiment shown in FIGS. 17 and 18 includes a handle portion that is movable in the lateral width direction by providing the handle auxiliary member 11f at the exposed portion of the rod-like member 11a in the flexible screen portion 11 shown in FIG. 11a3.
If it demonstrates in detail, the space which can move the handle auxiliary | assistance member 11f to a horizontal width direction will be ensured between the holding sheets 14 and 14 adjacent.
One or a plurality of handle assisting members 11f (two according to the illustrated example) are arranged in the space, and each of them is annularly attached to the rod-shaped member 11a.
And the part by the side of the flexible screen part 11f of each handle auxiliary | assistance member 11f is pinched | interposed between the flexible screen part 11 and the rod-shaped member 11a, as shown in FIG.
According to this configuration, each handle assisting member 11f can be moved to an appropriate position in the lateral width direction, and each handle assisting member 11f is partially disposed between the flexible screen portion 11 and the rod-shaped member 11a. Therefore, the handle assisting member 11f can be prevented from unintentionally moving due to vibration, wind pressure, or the like.

  In addition, according to the said embodiment, although the handle part 11a1, 11a2, or 11a3 is provided in the shape of a line over the width direction of the shutter curtain 10, these handle parts 11a1, 11a2, or 11a3 are provided as shutters. The curtain 10 may be provided in a plurality of rows in the vertical direction in the same manner or in different manners so that evacuees can selectively grab the curtain 10 in the vertical direction. Further, in this configuration, the handle portions arranged in a plurality of rows in the vertical direction have different positions in the width direction in the handle portions of some of the rows and positions in the width direction in the handle portions of the other rows. You may do it.

  Moreover, according to the said embodiment, although the example which made the single opening part 94 in the structure 90 open and close with the one shutter curtain 10 was shown, as an other example, in the width direction in the structure 90 A configuration in which a plurality of aligned openings are opened and closed by a single shutter curtain may be employed.

  Further, according to the above-described embodiment, the guide rail 20 is installed avoiding the operation panel 3 as an example. However, when the guide rail 20 is installed avoiding members such as a nameplate, an intercom, and a child door, It can also be applied to the case where the guide rail 20 is installed away from the edge of the opening 94 in the lateral width direction for reasons such as the strength of the housing and the design.

  Moreover, although the said embodiment is an example which installed the screen shutter apparatus A with respect to the structure 90 by which the substantially whole of the opening part 94 is opened and closed by the elevator doors 2 and 2, as an other example, an opening part is It is also possible to install the screen shutter device A for a structure that is partially opened and closed. In this other example, the center in the width direction of the handle portion may be made substantially coincident with the center in the width direction in the space portion formed by partially opening the opening.

It is a front view which shows the state installed in the near side of the door for elevators about an example of the screen shutter apparatus concerning this invention. It is a cross-sectional view which shows the state installed in the near side of the door for elevators about the screen shutter apparatus. It is a rear view which shows the state installed in the near side of the door for elevators about the screen shutter apparatus. It is a longitudinal cross-sectional view which shows the state installed in the near side of the door for elevators about the screen shutter apparatus. It is a principal part longitudinal cross-sectional view which shows the automatic closing structure about the screen shutter apparatus. It is a perspective view which shows the structure which prevents that a shutter curtain will return to an open state automatically about the screen shutter apparatus. It is a perspective view which shows a part of procedure at the time of manually returning a shutter curtain to an open state about the screen shutter device. It is a principal part perspective view which shows the state before attaching a rod-shaped member to a shutter curtain about the screen shutter apparatus. It is a front view which shows the state after mounting | wearing the shutter curtain about the screen shutter apparatus with the rod-shaped member. It is a principal part perspective view which shows the state before mounting | wearing a shutter curtain with respect to the other example of the screen shutter apparatus concerning this invention. It is a principal part perspective view which shows an example of the state which mounted | wore the shutter curtain about the screen shutter apparatus shown in FIG. It is a principal part perspective view which shows the other example of the state which mounted | wore the shutter curtain about the screen shutter apparatus shown in FIG. It is a principal part front view which shows the other examples of the screen shutter apparatus concerning this invention. It is a principal part front view which shows the other examples of the screen shutter apparatus concerning this invention. It is a principal part front view which shows the other examples of the screen shutter apparatus concerning this invention. It is a perspective view which shows the other example of a handle part. It is a principal part front view which shows the other examples of the screen shutter apparatus concerning this invention. It is a cross-sectional view in the screen shutter apparatus shown in FIG. It is a cross-sectional view showing an example of a conventional screen shutter device.

Explanation of symbols

10: Shutter curtain 11: Flexible screen part 11a: Rod-like member 11a1, 11a2, 11a3: Handle part 11b1, 11b2, 11b3: Holding sheet 11f: Hand auxiliary member 13, 14: Holding sheet 15: Locked sheet 16: Engagement / removal holding sheet 90: structure 94: opening

Claims (8)

In the shutter apparatus having a flexible screen portion, the shutter curtain is provided with one or more handle portions for manually opening the shutter curtain, and the opening portion of the structure is opened and closed by the shutter curtain.
The shutter curtain is configured to be longer in the width direction than the opening, and so that the center in the width direction does not coincide with the opening,
The shutter device is characterized in that the handle portion is disposed corresponding to the center of the opening in the width direction. A shutter apparatus having a flexible screen portion provided with one or a plurality of handle portions for manually opening the shutter curtain and opening and closing the opening of the structure by the shutter curtain. ,
A shutter device in which the bar-shaped member extending in the lateral width direction of the shutter curtain is partially covered by a holding sheet fixed to the shutter curtain, and the exposed portion of the bar-shaped member not covered by the holding sheet is used as the handle portion. In
The holding sheet is provided over substantially the entire length of the rod-shaped member, and includes a plurality of cut portions spaced in the lateral width direction,
The rod-shaped member is selectively inserted into the plurality of cut portions, so that the portion covered so as to be held by the holding sheet, and the above exposed without being covered by the holding sheet A shutter device comprising a handle portion. In the shutter device having a flexible screen portion and a handle for manually opening the shutter curtain, and opening and closing the opening of the structure by the shutter curtain,
The shutter device is characterized in that at least three or more of the handle portions are arranged at intervals so as to extend over substantially the entire length of the shutter curtain in the width direction. In the shutter apparatus having a flexible screen portion, the shutter curtain is provided with one or more handle portions for manually opening the shutter curtain, and the opening portion of the structure is opened and closed by the shutter curtain.
A rod-shaped member extending in the width direction of the flexible screen portion is provided, and both end portions of the rod-shaped member are fixed to the shutter curtain, and a range other than the both end portions of the rod-shaped member is set at an arbitrary position. A shutter device characterized in that a part other than an arbitrary fastening part in the rod-like member is used as the handle part by being detachable from the shutter curtain. A locked sheet that is secured to the flexible screen portion in the lateral width direction, and an engagement / disengagement holding sheet that is detachably locked to an arbitrary position of the locked sheet,
The rod-shaped member is provided in the width direction along the locked sheet,
A plurality of the engagement / disengagement holding sheets are disposed at intervals in the width direction, and each of the engagement / disengagement holding sheets is locked to the shutter curtain so as to hold the rod-shaped member,
The shutter device according to claim 4, wherein the handle portion is an exposed portion of the rod-shaped member that is not held by the engagement / disengagement holding sheet. In the shutter apparatus having a flexible screen portion, the shutter curtain is provided with one or more handle portions for manually opening the shutter curtain, and the opening portion of the structure is opened and closed by the shutter curtain.
A shutter device characterized in that the handle portion is configured to be movable in the lateral width direction with respect to the shutter curtain.   The handle portion includes a rod-shaped member extending in the width direction of the flexible screen portion, and both end portions of the rod-shaped member are fixed to the shutter curtain, and are movable in the width direction with respect to the rod-shaped member. The shutter device according to claim 6, wherein a handle auxiliary member is provided in an annular shape.   8. The shutter device according to claim 7, wherein a part of the handle assisting member is sandwiched between the shutter curtain and the rod-like member.

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