JP2006070483A - Fire shutter device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fire shutter device which enables wide use of a floor passage, has a simple structure, and allows a person to complete quick closing operation thereof if necessary. <P>SOLUTION: The fire shutter device is provided for closing a passage opening in a building, and it is formed of a shutter and a door which are arranged adjacent to each other in an opening plane, and a mullion arranged between the shutter and the door. When the shutter device is opened, the shutter is housed in a ceiling of the passage, and the door and the mullion are pulled toward either one of wall portions on both sides of the passage. The mullion is formed separately from the door, and moves in the opening plane while maintaining an erect position. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a fire shutter device provided in the vicinity of a staircase in a store such as a large-scale store.

  In large-scale stores such as department stores, supermarkets, shopping centers, etc., in order to prevent the staircase from becoming a chimney in the event of a fire, etc., a fire shutter that blocks the opening of the passage connecting each floor part and the staircase It is obliged to install the equipment. Such a fire shutter device includes a so-called shutter portion that moves up and down to open and close the opening, and a fire door that is disposed adjacent to the shutter portion in order to ensure an evacuation path when a disaster occurs.

  Normally, a guide rail is provided on both sides of the shutter curtain to prevent the shutter curtain, which is an aggregate of a large number of slats suspended from above, from moving in and out, as described above. In the case of a simple fire shutter device, the guide rail on one side needs to guide the shutter on one side and receive the door end portion of the fire door on the other side. As shown in FIG. 19, this stand is arranged so as to block the passage from the floor to the ceiling in the vicinity of the center of the passage, so that it is an obstacle for customers moving in the store during normal times. For this reason, it has been necessary to consider the layout in the store so that the direction is as inconspicuous as possible.

Patent Document 1 discloses a fire door apparatus in which a guide rail of a shutter is provided at the door tip of the door so that such a stand is unnecessary. Patent Document 2 discloses an architectural shutter device having a structure in which a locking mechanism is provided at the front end of a fire door, and one side end of the shutter is locked and reinforced by this locking mechanism.
JP-A-11-210355 JP 2002-194970 A

  However, in the structure of the fire door device disclosed in Patent Document 1, when a fire or the like occurs, it is necessary to first close the fire door to the closed position and then lower the shutter. Therefore, since the operation is in two stages, there is a problem that it takes time to close and is not necessarily preferable for safety.

  Further, according to the structure of the architectural shutter device disclosed in Patent Document 2, by providing a locking mechanism at the door end, the two-stage operation as in the structure disclosed in Patent Document 1 is not necessary. There is a problem that the structure of the locking mechanism is too complicated to be actually commercialized.

  Therefore, an object of the present invention is to provide a fire shutter device that can widely use a floor passage and has a simple structure, and can quickly complete a closing operation when necessary.

  The present invention will be described below. In order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are appended in parentheses, but the present invention is not limited to the illustrated embodiment.

  The invention according to claim 1 is a fire protection shutter device (100) for closing a passage opening in a building, wherein the shutter (300) and the door (200) are arranged adjacent to each other in the opening surface when closed. And a vertical part (400) arranged between the shutter and the door, and when the shutter is opened, the shutter is accommodated in the ceiling part of the passage, and the door and the vertical part are drawn to one of the walls on both sides of the passage. The fireproof shutter device solves the above-mentioned problem by being arranged and configured so that the vertical portion is formed separately from the door and is moved in the opening surface while maintaining an upright posture. It is something to try.

  The invention according to claim 2 is a fire prevention shutter device (100) for closing a passage opening in a building, wherein the shutter (300) and the door (200) are arranged adjacent to each other in the opening surface when closed. And a vertical part (400) arranged between the shutter and the door, and when the shutter is opened, the shutter is accommodated in the ceiling part of the passage, and the door and the vertical part are drawn to one of the walls on both sides of the passage. Arranged, the vertical part is formed separately from the door, and is configured to move within the opening surface while maintaining an upright posture, and extends from the lower end of the shutter so that it can extend and contract (600) The tip of (600) is attached to the vertical part so that it can move freely up and down.

  The invention according to claim 3 is a fire prevention shutter device (100) for closing a passage opening in a building, wherein the shutter (300) and the door (200) are arranged adjacent to each other in the opening surface when closed. And a vertical part (400) arranged between the shutter and the door, and when the shutter is opened, the shutter is accommodated in the ceiling part of the passage, and the door and the vertical part are drawn to one of the walls on both sides of the passage. The vertical part is formed separately from the door, and is configured to be moved in the surface of the opening while maintaining an upright posture. One end of the shutter is pivotally attached to the lower end of the shutter. In addition, the other end of the arm (600) whose other end is extended and retractable is attached to the vertical part so that it can freely move up and down, and the arm rotates to sense an obstacle below the arm. It is intended to solve the problems by fire shutter device according to claim which comprises a sensing means (650) that.

  According to a fourth aspect of the present invention, there is provided a fire prevention shutter device for closing a passage opening in a building, wherein the shutter (300), the door (200) and the shutter disposed adjacent to each other in the surface of the opening when closed, and the shutter And a vertical part (400) arranged between the door and the door, and when the shutter is opened, the shutter is accommodated in the ceiling part of the passage, and the door and the vertical part are arranged to be drawn to one of the walls on either side of the passage. The vertical part is formed separately from the door, and is configured to be moved in the opening surface while maintaining an upright posture. The mechanism (500) is provided, and the operation assisting mechanism is attached to the inside and outside of the vertical portion, and the object is to solve the above problem by a fire prevention shutter device (110).

  According to a fifth aspect of the present invention, there is provided a fire prevention shutter device for closing a passage opening in a building, wherein the shutter (300), the door (200) and the shutter disposed adjacent to each other in the opening surface when closed, and the shutter And a vertical part (400) disposed between the door and the door, and when the shutter is opened, the shutter is accommodated in the ceiling part of the passage, and the door and the vertical part are arranged to be drawn to one of the walls on both sides of the passage, The vertical part is formed separately from the door, and is configured to move within the opening surface while maintaining an upright posture, and further, the movement assist mechanism that smoothly moves the vertical part within the opening surface (500) is provided, and the operation assisting mechanism is accommodated in the ceiling of the passage when opened, and is intended to solve the above problem by a fire-protection shutter device (110).

  According to a sixth aspect of the present invention, there is provided a fire prevention shutter device for closing a passage opening in a building, wherein the shutter (300), the door (200) and the shutter disposed adjacent to each other in the surface of the opening when closed, and the shutter And a vertical part (400) disposed between the door and the door, and when the shutter is opened, the shutter is accommodated in the ceiling part of the passage, and the door and the vertical part are arranged to be drawn to one of the walls on both sides of the passage, The vertical portion is formed separately from the door, and is configured to be moved in the opening surface while maintaining an upright posture, and further, the door until the vertical portion passes the tip of the door during the closing operation. The fire prevention shutter device (110) is provided with a closing operation adjusting mechanism (700) that delays the closing operation.

  According to the first aspect of the present invention, since the vertical portion is attracted to the side of the passage wall during normal times, it is on the passage and does not hinder the passage of customers in the store. Further, since the door and the vertical portion are separated, it is possible to easily adopt a structure capable of lowering the shutter while closing the door.

  According to the invention of claim 2, in addition to the effect of the invention of claim 1, the movement of the shutter side part is regulated by the arm that is extendable from one end part of the shutter to the vertical part. Therefore, it is possible to prevent the shutter from moving in and out. In addition, the arm extends from the shutter to the vertical part so as to be extendable and retractable, and is configured to be able to freely move in the vertical direction with respect to the vertical part, so that the shutter is moved while moving the vertical part in the shutter direction. Can be lowered.

  According to the invention of claim 3, in addition to the effect of the invention of claim 2, since an obstacle below the arm can be detected, a safer fire prevention shutter device can be configured.

  According to the invention of claim 4, in addition to the effect of the invention of claim 1, the movement assisting device can make the vertical movement smoother and more reliable.

  According to the fifth aspect of the present invention, since the motion assisting device is accommodated in the ceiling of the passage and is not visible from the outside during normal times, a fire shutter device with high design can be configured.

  According to the invention of claim 6, since the consistency of the operation of the vertical portion and the door is taken by the closing operation adjusting mechanism, for example, a situation where the vertical portion moves while rubbing the side surface of the door being closed. It can be avoided.

  Such an operation and gain of the present invention will be made clear from the best mode for carrying out the invention described below.

  Hereinafter, the present invention will be described based on embodiments shown in the drawings.

  FIG. 1 is a perspective view showing the entire fire shutter device. The illustrated fire shutter device 100 is a device that closes an opening plane A that is conceived when a passage in a building is cut by a plane perpendicular to the passage traveling direction, and is open during normal times. The plane A is surrounded by a four-sided frame consisting of an upper frame 10, a lower frame 20, a left vertical frame 30, and a right vertical frame 40. The fire prevention shutter device 100 includes a door 200, a shutter 300, and a vertical portion 400 disposed between the door 200 and the shutter 300 when closed.

  The door 200 is rotatably attached to the left vertical frame 30 by a hinge or the like. The door 200 includes a smaller inner door 210 inside thereof. The inner door 210 can be opened and closed even when the door 200 is closed, and even if there is a person locked out by the fire prevention shutter device 100, evacuation for that case The road is secured.

  The vertical portion 400 is disposed adjacent to the left vertical frame 30 toward the passage side wall W on the left side of the drawing in a normal state, and maintains an upright posture toward the center of the passage due to a fire alarm or the like. It is configured to stick out. The protrusion of the vertical portion 400 is supported by an operation assisting mechanism 500 to be described later, while the upper groove rail 11 and the lower groove rail 12 (on the upper frame of the upper frame) formed on the lower surface of the upper frame 10 and the upper surface of the lower frame 20. The upper groove rail 11 is not shown in FIG. 1 because it is in a blind spot.) The upper groove 410 and the lower edge 420 of the vertical portion 400 are moved in the direction of the center of the passage along the vertical axis 400.

  When the shutter 300 is in a normal state, each slat 310 is wound up on a winder 330 in the shutter box by a motor 320 disposed in the ceiling of the passage. When the shutter 300 is lowered and closed due to a fire notification or the like, one end of the shutter 300 is guided and lowered by a guide groove (not shown) formed in the right vertical frame 40. On the other hand, the other end side of the shutter 300 is engaged with the side portion of the vertical portion 400 to which the distal end of the extendable arm 600 attached in the vicinity of the shutter seat plate 350 is approaching. Thereby, the shake of the shutter 300 in the inner and outer directions is suppressed.

  Next, the moving mechanism of the vertical part 400 will be described with reference to FIGS. 2A is a perspective view showing the vertical part 400 and the lower groove rail 12, and FIG. 2B is an enlarged perspective view showing the lower part of the vertical part 400 and the lower groove rail 12 in an exploded perspective view. FIG. 3 is a perspective view showing the contact ring mechanism 430 attached to the lower portion of the vertical portion 400. 4A is a front view, and FIG. 4B is a side view of the contact ring mechanism shown in FIG. 3 (however, the lower groove rail 12 is also shown in this figure). C) is a plan view. Further, FIG. 5A is a view showing the entire vertical part 400 traveling between the upper groove rail 11 and the lower groove rail 12 together with an operation assisting mechanism 500 described later, and FIG. 5B is a lower end part 420 of the vertical part 400. It is a figure which expands and shows.

  As is clear from FIGS. 2 and 5, the contact ring mechanism 430 b is attached to the upper end portion 410 of the vertical portion 400, and the contact ring mechanism 430 is attached to the lower end portion 420. The upper contact ring mechanism 430b is guided by the upper groove rail 11, and the lower contact ring mechanism 430 is guided by the lower groove rail 12. The upper abutment ring mechanism 430b and the lower abutment ring mechanism 430 have basically the same structure except that the upper and lower abutment ring mechanisms 430 are reversed to the upper side and the lower side. A description will be given on behalf of 430.

  As shown in FIGS. 3 and 4, in the contact ring mechanism 430, auxiliary plates 432 and 432 are attached to the front and back of the substrate 431 with screws 433, and one auxiliary plate 432 has two Horizontal wheels 434 and 435 are attached to the other auxiliary plate 432, and one vertical wheel 436 is rotatably attached thereto. A long hole 437 is formed in the substrate 431 in the vertical direction.

  4B, when the contact ring mechanism 430 is disposed in the lower groove rail 12, the horizontal wheels 434 and 435 are disposed on the side plate 12a of the lower groove rail, and the vertical ring 436 is disposed on the bottom plate 12c. Alternatively, it is brought into contact with the top plate 12d. Thus, the lower abutment ring mechanism 430 guides the lower end portion 420 of the vertical portion 400 so that it can smoothly travel along the lower groove rail 12 and restricts the vertical portion 400 from moving inward and outward.

  The upper contact ring mechanism 430b is fixed to the upper end portion 410 of the vertical portion 400 so as to freely rotate. On the other hand, the lower abutment ring mechanism 430 is attached to freely move in the vertical direction using a lower end portion 420 of the vertical portion 400 and a long hole 437 provided in the substrate 431. With this configuration, as shown in FIG. 5, the vertical portion 400 is given a certain degree of freedom of rotation between the upper groove rail 11 and the upper and lower groove rails 11 of the vertical portion 400 caused by the rotation. The expansion / contraction of the distance between 12 is adjusted between the lower groove rail 12 and the lower contact mechanism 430.

  Next, with reference to FIG. 6 and FIG. 7, an arm and sensing means for sensing the presence of an obstacle below by the movement of the arm will be described. 6A is a perspective view showing the shutter 300, the vertical portion 400, and an arm 600 extending from the vicinity of the shutter seat plate 350 to the vertical portion 400, and FIG. 6B is attached to the vicinity of the shutter seat plate 350. It is the perspective view which expands and shows a partly exploded arm 600. In FIG. 6A, the intermediate portion of the vertical portion 400 is cut and shown for better understanding. FIG. 7 is a perspective view showing the relation of the arm 600 to the vertical part 400.

  The shutter (curtain) 300 is configured by combining a plurality of slats 310, 310, ... formed in the horizontal direction in the vertical direction, and a seat plate 350 is attached to the lower part thereof. An outer cylinder 610 is placed on the seat plate 350, and one end (fulcrum 670) of the outer cylinder 610 is attached to the seat plate 350 so as to be rotatable in the vertical direction. The other end side of the outer cylinder 610 is placed on a flange 620 attached on the seat plate 350.

  Inside the outer cylinder 610, an inner cylinder 600 configured to freely slide in the left-right direction of the shutter 300 within the outer cylinder 610 is disposed. The inner cylinder 600 is the arm 600 in the present invention. As shown in FIG. 7, a roller 660 is attached to the tip of the arm 600 so as to be rotatable in the vertical plane direction. The rotation surface of the roller 660 is shifted forward from the drawing direction by a predetermined distance from the extending direction of the arm 600.

  The vertical portion 400 is formed with a guide groove 450 that opens to the distal end side of the arm. The guide groove 450 also accepts the front end of the arm 600 and the side end portion of the shutter 300 when the arm 600 is closed to prevent the shutter 300 from swinging inward and outward. Further, the guide groove 450 has an entrance opening that is narrower than the inside, and when the distance between the shutter 300 and the vertical portion 400 is becoming narrower, the facing surface 452 with which the tip of the arm 600 comes into contact, and the facing surface A return surface 451 on the opening side facing 452 is provided. The roller 660 provided at the tip of the arm 600 is disposed so as to come into contact with the return surface 451 and the facing surface 452.

  With this configuration, the change in the distance between the shutter 300 and the vertical portion 400 is handled by the arm 600 that can freely slide in and out of the outer cylinder 610, and the shutter 300 is returned to the vertical movement of the shutter 300. This can be handled by the roller 660 at the tip of the arm that rolls up and down while abutting the surface 451 and the facing surface 452. In the present embodiment, the outer cylinder 610 and the arm 600 that freely slides in and out of the inside form a one-stage telescope to ensure the stretchability of the arm. It may be configured in stages.

  A cover 630 is attached to the flange 620 with screws 640 and 640. A sensing sensor unit 650 is disposed inside the cover 630. The detection sensor unit 650 detects when the arm 600 is rotated around the fulcrum 670 and stops the closing operation of at least one of the vertical portion 400 and the door 200 including the shutter 300. Send a signal for. Thus, when an obstacle, a person, or the like is present below the arm 600 while the shutter 300 is being lowered, and the arm 600 is rotated around the fulcrum 670, the closing operation of the fire prevention shutter device 100 is stopped. Safety is ensured.

  Next, an operation assisting mechanism 500 that assists the lateral movement of the vertical portion 400 will be described with reference to FIGS. FIG. 8 is an enlarged front view showing the movement assist mechanism 500 together with the vertical portion 400. FIG. 9 shows the positional relationship between the operation assisting mechanism 500 and the vertical portion 400 in the order of the closing operation. FIG. 9A is a diagram showing when the fire shutter device 100 is opened (normal time), and FIG. The figure which shows the state in the middle from opening to closing, (C) is a figure which shows the state of closing. FIG. 10 is a diagram showing the operation of the motion assist mechanism 500, (A) is a diagram showing when the fire shutter device 100 is open (normal time), (D) is a diagram showing a closed state, and (B) And (C) is a figure which shows the state in those middle. FIG. 11 is a perspective view showing the entirety of a fire shutter device (a fire shutter device having a motion assist mechanism inside and outside is denoted by reference numeral 110) in which the motion assist mechanism 500 is attached inside and outside the vertical portion 400. In this figure and FIG. 12, the internal and external motion assist mechanisms are indicated by reference numerals 500a and 500b, respectively. FIG. 12 is an enlarged perspective view showing the operation assisting mechanisms 500a and 500b in FIG. Further, FIG. 13 is a view showing a state in which the operation assisting mechanisms 500a and 500b are housed in the ceiling when the fire shutter device 110 is in the open state (normal time), (A) is a front view, and (B) ) Is a plan view. Furthermore, FIG. 14 is a diagram illustrating the torque characteristics of the operation assisting mechanism 500.

  First, the structure of the operation assisting mechanism 500 will be described with reference to FIG. The motion assist mechanism 500 includes a first arm portion 510 and a second arm portion 520. The first arm portion 510 is a substantially linear rod-shaped member, and one end side of the first arm portion 510 is rotatably attached to the upper frame 10 at a node 501. The second arm portion 520 has a substantially “L” shape, and one end of the second arm portion 520 is rotatably attached to a mounting plate 401 attached to the upper end of the vertical portion 400 at a node 504. Further, the other end of the second arm portion 520 is attached with an “L” -shaped bent portion so as to be able to turn to the middle of the first arm portion 510 at the node 502. Further, a tensile force is applied to the tip L of the “L” -shaped portion of the second arm portion 520 and the end portion K of the first arm portion 510 by a coil spring 530. In the first arm portion 510, the end K is located on the side opposite to the nodal point 501. In FIG. 8, the coil spring 530 is shown at the L point and the K point, respectively, but this is because description in the middle of the single coil spring 530 is omitted. There is one coil spring 530 that draws the points. A first cover member 560 is attached to the nodal point 501 side of the first arm portion 510. A third cover member 550 is attached to the end K side of the first arm portion 510. Further, a second cover member 540 is attached to the node 504 side of the second arm portion 520.

  Next, the operation of the motion assist mechanism 500 will be described with reference to FIGS. When the fire shutter device 100 is open during normal times, the operation assisting mechanism 500 is fixed to the ceiling by a locking member (not shown) (see FIGS. 9A and 10A). When there is a fire notification or the like and the fixation by the locking member is released, the motion assisting device 500 is rotated by the first arm 510 in the clockwise direction around the node 501 due to its own weight. The arm portion 520 is drawn in the left direction in the figure while rotating counterclockwise. Thereby, the vertical part 400 is pulled toward the shutter 300. At the beginning of the closing operation, the coil spring 530 is inside a triangle connecting the three nodes, 501, 502, and 504, and gives a tensile force in a direction that restricts the operation of the vertical portion 400 toward the shutter 300. Eventually, the coil spring 530 and the first arm portion 510 are arranged in a straight line (see FIGS. 9B and 10B), and the regulation force becomes neutral.

  When the closing operation further proceeds, the coil spring 530 comes to be positioned outside the triangle formed by the three nodes (see FIG. 10C). In such a state, the coil spring 530 applies a tensile force in a direction that promotes the operation of the vertical portion 400 toward the shutter 300 side. That is, the coil spring 530 acts on the operation assisting mechanism 500 in the direction of restricting the operation at the initial stage of the closing operation, and acts on the operation assisting mechanism 500 in the direction of promoting the closing operation in the latter half of the closing operation. Thus, even if the operation is stopped during the closing operation, the subsequent closing operation can be smoothly advanced. For reference, FIG. 14 shows the torque generated by the coil spring 530, the hanging torque generated by the weight of the operation assisting mechanism 500, and the torque obtained by combining these torques.

  The operation assisting mechanism 500 can obtain the above-described action if one is provided for the vertical portion 400, but from the viewpoint of not twisting the vertical portion 400, as shown in FIG. 11 and FIG. In addition, a pair may be provided inside and outside the fire shutter device.

  FIG. 13 shows how the auxiliary operation mechanism 500 fits in the ceiling during normal times. As shown in the figure, when the motion assist mechanism 500 is stored in the ceiling during normal times, the lower surface side is covered with the first cover material 560, the second cover material 540, and the third cover material 550, and the inside of the floor The operation assisting mechanism 500 is not directly visible to those who pass. Thus, the design of the fireproof shutter device 100 can be improved. As shown in FIG. 13B, since the pair of operation assisting mechanisms 500a and 500b are provided inside and outside the shutter, two cover members are also arranged (reference numerals). "A" and "b" are attached respectively).

  Next, the closing operation adjusting mechanism will be described with reference to FIGS. FIG. 15 is a view showing the operation of the closing operation adjusting mechanism 700 at the same time as the door 200 and the vertical portion 400. (A) is a figure which shows the state which the closing operation adjustment mechanism 700 is acting in the middle of closing operation, (B) is a figure which shows the state by which closing operation was completed. FIG. 16 is an enlarged plan view showing the closing operation adjusting mechanism 700, the vertical portion 400, and the door end portion of the door 200 when the closing operation is completed. FIG. 17 is a perspective view showing a state in which the closing operation adjusting mechanism 700 is operating.

  A closing operation adjusting mechanism 700 is attached to a portion of the upper frame 10 corresponding to the door tip when the door 200 is closed. The closing operation mechanism 700 includes an attachment base 710 attached to the surface of the upper frame 10 on the door 200 side. A stopper 730 is rotatably attached to the mounting base 710 via a shaft 720. The stopper 730 is oriented in the direction of the door 200 whose front end is closed during normal times. When the door 200 is closed, the front end of the stopper 730 comes into contact with the door 200, and the door 200 is further closed. regulate.

  The vertical portion 400 is provided with an overhanging portion 405 projecting on the door side, and a contact bar 406 protruding upward is attached to the upper surface of the overhanging portion 405.

  In FIG. 15, as is clear from FIG. 15A, the closing operation of the door 200 is restricted by the stopper 730, so that the movement of the vertical portion 400 in the shutter direction is performed without any restriction. When the vertical portion 400 moves in the shutter direction from the wall side (moves from right to left in the figure), the contact bar 406 presses the stopper 730 that restricts the closing of the door 200, and the stopper 730 is moved to the shaft 720. Rotate around counterclockwise. Thus, the restriction on the closing of the door 200 by the stopper 730 is released, and the door 200 can be rotated to a position parallel to the upper frame 10 to complete the closing.

  18A and 18B are diagrams illustrating the operation of the fire shutter device 100 according to the present invention, in which FIG. 18A shows a state in which the fire shutter is open (normal time), FIG. 18B shows a state in which the fire shutter is fully closed, and FIG. is there. Moreover, the upper part of each figure is a front view, and the lower part has shown the top view. During normal times, the shutter 300 is taken up by a winder 330 provided in the ceiling, and the door 200 and the vertical part 400 are arranged near or along the wall on the right side of the passage. Therefore, since there is nothing that obstructs the passage of the passage, it is possible to use the passage extensively. Further, since the operation assisting mechanism 500 is arranged so as to be covered in the ceiling, the presence of the operation assisting mechanism 500 is hardly noticeable from the outside, and the appearance of the ceiling portion can be made clear.

  When it is necessary to close the fire-proof shutter device 100 due to a fire or the like, the shutter 300 is wound around the wind-up device 330, the locking device held in the ceiling is released, and the shutter 300 is lowered by its own weight. To start. On the other hand, the locking device of the operation assisting mechanism 500 housed in the ceiling portion is also released at the same time, and the first arm portion 510 is rotated in the clockwise direction by its own weight, so that the vertical portion 400 is pulled from the wall side so as to be pulled. Start moving to the shutter side. Simultaneously with these operations, the closing operation of the door 200 is also started. Finally, as shown in FIG. 18C, the vertical portion 400 is arranged between the shutter 200 that is completely closed and the door 200. As described above, since the closing operation of the shutter 300, the vertical part 400, and the door 200 proceeds simultaneously in an emergency, it does not take much time to change from the normal state to the complete closed state.

  In the above description, for example, FIG. 1 illustrates an example in which the door is disposed on the left side of the opening and the shutter is disposed on the right side. However, the arrangement of the door and the shutter may be reversed to the left and right in this example.

  While the present invention has been described in connection with embodiments that are presently the most practical and preferred, the present invention is not limited to the embodiments disclosed herein. However, the invention can be changed as appropriate without departing from the spirit or concept of the invention that can be read from the claims and the entire specification, and a fire shutter device with such a change is also included in the technical scope of the present invention. Must be understood as.

It is a perspective view which shows the whole fire prevention shutter apparatus. (A) is a perspective view showing a vertical part and a lower rail, and (B) is an exploded perspective view showing a lower part and a lower rail of the vertical part. It is a perspective view which shows the contact ring mechanism attached to the lower part of a standing part. (A) of the traveling mechanism shown in FIG. 3 is a front view, (B) is a side view, and (C) is a plan view. (A) is a figure which shows the whole vertical part which drive | works between an upper rail and a lower rail, (B) is a figure which expands and shows the lower end part of a vertical part. (A) is a perspective view showing a shutter, a vertical portion, and an arm extending from the vicinity of the shutter seat plate to the vertical portion, and (B) is an enlarged view of the arm attached in the vicinity of the shutter seat plate portion. It is a perspective view which decomposes | disassembles and shows a part. It is a perspective view which shows the relationship of the arm to a vertical part. It is a figure which expands and shows a movement assistance mechanism with a standing part. The positional relationship between the motion assist mechanism and the vertical part is shown in order, (A) is a diagram showing when the fire shutter device is open (normal time), (B) is a diagram showing a state in the middle from opening to closing (C) is a figure which shows the state of a closure. It is a figure which shows operation | movement of a movement assistance mechanism, (A) is a figure which shows when a fire shutter apparatus is open | released (normal time), (D) is a figure which shows the state of closure, (B), and (C) It is a figure which shows the state in the middle. It is a perspective view which shows the whole fire prevention shutter apparatus with which the operation assistance mechanism was attached to the inside and outside of a vertical part. It is a figure which expands and shows the part of the operation assistance mechanism in FIG. It is a figure which shows the state in which the operation assistance mechanism is accommodated in the ceiling part, when a fire shutter apparatus is in an open state (normal time), (A) is a front view, (B) is a top view. It is a figure which shows the torque characteristic of a movement assistance mechanism. It is a figure which shows operation | movement of a closing operation adjustment mechanism simultaneously with a door and a vertical part. (A) is a figure which shows the state which the closing operation adjustment mechanism is acting in the middle of closing operation, (B) is a figure which shows the state by which closing operation was completed. It is a top view which expands and shows the closing operation adjustment mechanism at the time of completion of closing operation, a standing part, and the door tip part of a door. It is a perspective view which shows the state which the closing operation adjustment mechanism is acting. It is a figure which shows operation | movement of the fire-protection shutter apparatus of this invention, (A) is the time of opening (normal time), (B) is in the middle of closing, (C) is a figure which shows the state closed completely. Moreover, the upper part of each figure is a front view, and the lower part has shown the top view. The conventional fire prevention shutter apparatus with which the vertical part is being fixed on the channel | path is shown, (A) is a front view, (B) is a top view.

Explanation of symbols

A Opening plane L L-shaped end K First arm end W Path wall 10 Upper frame 11 Upper groove rail 12 Lower groove rail 12a, 12b Side plate 12c Bottom plate 20 Lower frame 30 Left vertical frame 40 Right vertical frame 100, 110 Fire prevention Shutter device 200 Door 210 Inner door 300 Shutter 310 Slat 320 Motor 330 Winder 350 Seat plate 400 Standing portion 401 Mounting plate 405 Overhang portion 406 Contact bar 410 Upper end portion 420 Lower end portion 430 Contact ring mechanism (lower portion)
430b Contact ring mechanism (upper part)
431 Substrate 432 Auxiliary plate 433 Screw 434 Horizontal wheel 435 Horizontal wheel 436 Vertical wheel 437 Long hole 450 Guide groove 451 Return surface 452 Opposing surface 480 Shielding plate 490 Screw 410 Upper end 420 Lower end 500, 500a, 500b Operation assist mechanism 501 Node 502 node 503 spring attachment point 504 node point 510 first arm portion 520 second arm portion 530 coil spring 540 second cover material 550 third cover material 560 first cover material 600 arm 610 outer cylinder 620 flange 630 cover 640 screw 650 Sense sensor unit 660 Roller 670 Support point 700 Closing operation adjusting mechanism 710 Mounting base 720 Shaft 730 Stopper

Claims (6)

A shutter device for fire prevention that closes a passage opening in a building,
A shutter disposed adjacent to the opening surface when closed, and a door, and a vertical portion disposed between the shutter and the door;
At the time of opening, the shutter is housed in the ceiling of the passage, and the door and the vertical portion are arranged to be drawn to either wall portion of both sides of the passage,
The fireproof shutter device, wherein the vertical portion is formed separately from the door and is configured to be moved within the surface of the opening while maintaining an upright posture. A shutter device for fire prevention that closes a passage opening in a building,
A shutter disposed adjacent to the opening surface when closed, and a door, and a vertical portion disposed between the shutter and the door;
At the time of opening, the shutter is housed in the ceiling of the passage, and the door and the vertical portion are arranged to be drawn to either wall portion of both sides of the passage,
The vertical portion is formed separately from the door, and is configured to be moved in the surface of the opening while maintaining an upright posture.
A fire-protective shutter device, characterized in that a tip of an arm extended and retractable from a lower end of the shutter is attached to the vertical portion so as to freely move up and down. A shutter device for fire prevention that closes a passage opening in a building,
A shutter disposed adjacent to the opening surface when closed, and a door, and a vertical portion disposed between the shutter and the door;
At the time of opening, the shutter is housed in the ceiling of the passage, and the door and the vertical portion are arranged to be drawn to either wall portion of both sides of the passage,
The vertical portion is formed separately from the door, and is configured to be moved in the surface of the opening while maintaining an upright posture.
One end side of the lower end of the shutter is pivotally attached, and the other end of the arm, the other end of which is telescopically extended, is attached to the vertical portion so as to freely move up and down.
A fire prevention shutter device comprising a sensing means for sensing an obstacle below the arm by rotating the arm. A shutter device for fire prevention that closes a passage opening in a building,
A shutter disposed adjacent to the opening surface when closed, and a door, and a vertical portion disposed between the shutter and the door;
At the time of opening, the shutter is housed in the ceiling of the passage, and the door and the vertical portion are arranged to be drawn to either wall portion of both sides of the passage,
The vertical portion is formed separately from the door, and is configured to be moved in the surface of the opening while maintaining an upright posture.
The fire prevention shutter device further comprises an operation assisting mechanism for smoothly moving the vertical portion within the opening surface, and the operation assisting mechanism is attached inside and outside the vertical portion. A shutter device for fire prevention that closes a passage opening in a building,
A shutter disposed adjacent to the opening surface when closed, and a door, and a vertical portion disposed between the shutter and the door;
At the time of opening, the shutter is housed in the ceiling of the passage, and the door and the vertical portion are arranged to be drawn to either wall portion of both sides of the passage,
The vertical portion is formed separately from the door, and is configured to be moved in the surface of the opening while maintaining an upright posture.
Furthermore, an operation assisting mechanism that smoothly moves the vertical portion within the opening surface is provided, and the operation assisting mechanism is accommodated in the ceiling of the passage when opened. apparatus. A shutter device for fire prevention that closes a passage opening in a building,
A shutter disposed adjacent to the opening surface when closed, and a door, and a vertical portion disposed between the shutter and the door;
At the time of opening, the shutter is housed in the ceiling of the passage, and the door and the upright portion are arranged so as to be drawn to one of the walls on both sides of the passage,
The vertical portion is formed separately from the door, and is configured to be moved in the opening surface while maintaining an upright posture,
Furthermore, the shutter device for fire prevention is provided with a closing operation adjusting mechanism for delaying the closing operation of the door until the vertical portion passes through the front end portion of the door during the closing operation.

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