JP3661685B2 - Fire or smoke-proof shutter with hollow doors - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fireproof or smokeproof shutter technology, and more specifically, in a sheet-type shutter in which a shutter sheet moves up and down along a pair of opposed guide rails provided at the left and right wall ends of an entrance or a passage. The present invention relates to a fire-proof or smoke-proof shutter structure equipped with a blind door through which a wheelchair can pass.
[0002]
[Prior art]
Left and right guide rails as evacuation means after closing the shutter of a sheet type fireproof or smokeproof shutter in which the shutter seat is raised and lowered along a pair of opposing guide rails provided at the left and right wall ends of the entrance or passage The patent applicant of the present application has applied for a smoke shielding shutter that is provided with a hinge in the vicinity of the upper end and pushes the lower end forward and jumps in the direction of the evacuation path (see Japanese Patent Application No. 2002-128263). This smoke shielding shutter is a system in which the left and right guide rails and a weight member at the lower end of the shutter sheet are passed up while being supported by hands by jumping up to a height at which almost a person can pass through. This smoke shield shutter is slightly difficult to operate if it is heavy, and the holding mechanism and latch mechanism as measures against wind pressure are provided on the left and right guide rails, respectively. May be a problem. However, these can be solved by using materials and mass production effects. Unlike this, a vertical slit is provided in the center of the fire compartment screen, the screens of the slit are overlapped with each other, a weight bar is provided at the lower end, and a permanent magnet is provided at the opposite end of the weight bar. There is also a screen for fire prevention compartments (see, for example, Patent Document 1). In the latter example of the screen for the fire prevention compartment, there is no description of specific measures for the sealing method of the slit portion, and the slit portion is bent when pressed by the wind pressure so that it is bent between the floor surface and the slit portion. Therefore, it is difficult to avoid mass leakage of gas and smoke to the evacuation path side through the gap.
[0003]
[Patent Document 1]
Japanese Patent No. 3085200 (third page, fifth page, FIG. 4)
[0004]
[Problems to be solved by the invention]
In view of the above situation, the present invention intends to solve the problem that an open / close type door that can be opened and closed with a light operating force and can be easily escaped and evacuated by an elderly person, a child, an injured person, a disabled person in a wheelchair or the like. It is an object of the present invention to provide a fireproof or smokeproof shutter provided with a function of automatically closing after the escape door has escaped. Another problem to be solved by the present invention is to realize a function of holding the hollow door so that it does not easily open even when subjected to wind pressure by a simple and inexpensive mechanism.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, a fireproof or smokeproof shutter provided with a hollow door according to the present invention includes a pair of opposing guide rails installed substantially perpendicular to the left and right wall ends of the doorway or passage, and left and right end edges. And a shutter sheet provided with a horizontal weight member supported at both ends at the lower end and supported at both ends so as to be movable up and down along the guide rail. The two members at a point where a straight line obliquely connecting two points of an appropriate point near the upper end of either one of the pair of guide rails and an appropriate intermediate point in the width direction of the weight member intersects the members. When the shutter sheet is lowered, one of the straight line, the lower guide rail of the straight line, and the weight member on the side supported by the lower guide rail is disconnected. As door wicket triangular section, consisting of a, constructed by hinged members each division point of the guide rail and the weight members so that possible forward pivoting about said straight line. In the present specification, the term “wall end” means not only the entrance / exit end portion of the partition wall but also the both side wall surfaces of the passage, and may be described as “side wall”.
[0006]
Apart from the above, one of the pair of left and right guide rails is fixed to the side wall, and the other is a short upper and lower rail respectively fixed to the side wall, and the lower end is pivotable forward so that the upper end is the lower end of the upper rail. The weight member of the shutter sheet, which is composed of an intermediate rail connected by a hinge member and moves up and down along the left and right guide rails, is an integral weight member main body portion having both ends supported by the both guide rails, and the weight member main body One end is connected to the intermediate portion in the width direction by a hinge member so as to be able to rotate forward, and the other end is configured by a horizontal swinging piece supported by a guide rail on the side having the intermediate rail, and the shutter seat is lowered. When the weight member is landed, the weight member main body is set to be supported on the lower rail and the swing piece is supported on the intermediate rail. And a triangular portion formed in a straight line to the front pivotal wicket door connecting the hinge between the connecting portion of each the both members.
[0007]
In addition, the magnet adsorption | suction which adsorbs and hold | maintains the said lower side rocking | fluctuation guide rail in the state in which the rotation guide rail below the hinged guide rail side hinge member was suspended in a straight line with respect to the upper side guide rail. Conveniently providing the means to the wall of the building is advantageous in that it can be held so that it does not open easily even under wind pressure.
[0008]
Alternatively, in a state where the lower turning guide rail is suspended in a straight line with the upper guide rail than the hinged guide rail side hinge member, the lower turning guide rail can be released and locked. Providing a simple latch mechanism for the building wall is advantageous in that it can securely hold the door even under strong wind pressure.
[0009]
In the present specification, the inner side refers to the side facing the center side of the passage, the outer side refers to the side facing the left and right side walls, and the front side, front side, front side, or front side of the shutter refers to the shutter side. Refers to the direction of the side or evacuation path opposite the fire area, and the rear, rear, back, or back or rear of the shutter refers to the side of the shutter facing the fire area or the direction of the evacuation path, and In the state of standing from the front side toward the shutter, the left direction is left and the right direction is right.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments shown in the accompanying drawings, and all embodiments that satisfy the requirements described in the claims are described. Is included. FIG. 1 shows a state of an embodiment of a fireproof or smokeproof shutter equipped with a hollow door according to the present invention as viewed from the front, FIG. 2 shows a state in which the shutter sheet of the shutter of FIG. The right side of the shutter of FIG. 1 is shown respectively. 4 is an enlarged view of the latch mechanism portion of FIG. 3, FIG. 5 is an enlarged partial view of the lower right portion of FIG. 1, and FIG. 6 is a vertical sectional view at the middle portion of the shutter sheet of FIG. 7 is a cross-sectional view as viewed from the left, FIG. 7 is a cross-sectional view as viewed in the direction of the arrow X-X in FIG. 5, FIG. 8 is a cross-sectional view as viewed in the direction of the arrow Y-Y in FIG. The partial enlarged view which expands and shows the winding apparatus part of each is shown.
[0011]
In the figure, a fireproof or smokeproof shutter 1 provided with a hollow door according to the present invention is arranged along the vertical left and right side walls 3 and 3 of the passage 2 from the vicinity of the horizontal floor surface 4 of the passage 2 to the ceiling wall 5. A pair of opposed guide rails 10 and 11 installed almost vertically up to the upper part thereof through the ceiling opening 54 of the door and the left and right end edges 32 and 32 supported so as to be movable up and down along the guide rails 10 and 11. The shutter sheet 30, a weight member 20 that is closely attached to the lower end of the shutter sheet 30 in parallel with the floor surface 4 and supported at both ends so as to be movable up and down along the guide rails 10 and 11, and an upper portion of the ceiling opening 54 And a shutter device 50 for winding a shutter sheet.
[0012]
Of the pair of left and right opposing guide rails 10, 11, the right guide rail 10 is vertically divided with an appropriate point slightly below the ceiling wall 5 as a dividing point 12 and fixed to the side wall 3. An upper fixed rail piece 13 supported on the side wall, a lower side swing rail piece 14 that is non-fixedly in contact with the side wall 3, and a hinge 15 that connects the rail pieces 13 and 14 at a dividing point 12. Thus, the swing-side guide rail 10 is configured such that the lower side from the hinge 15 can be rotated forward. On the other hand, the guide rail 11 on the left side of the figure is a fixed-side guide rail 11 that is fixedly supported by the side wall 3 over its entire length. A stopper member 42 is provided behind the swing side guide rail 10. The stopper member 42 is fixed to the side wall 3 of the passage 2 and is located behind the swing rail piece 14 in a state where the swing rail piece 14 is in a vertical state, that is, the swing rail piece 14 and the fixed rail piece 13 are in a straight line. An abutting portion 43 that abuts is provided.
[0013]
On the other hand, the weight member 20 is divided into left and right with an appropriate intermediate position in the width direction as a dividing point 24, and a swing weight piece 25 supported by the right swing guide rail 10 and a left fixed side. The fixed weight piece 26 supported by the guide rail 11 and the hinge 27 that connects the weight pieces 25 and 26 at the dividing point 24 are configured, and the right swing weight piece 25 rotates forward from the hinge 27. Make it possible.
[0014]
Both the hinges 15 and 27 are attached to the front side surfaces of the guide rail 10 and the weight member 20, and the center lines of the hinge pins (not shown) are respectively on the swing side guide rail 10 and the weight member 20. Are attached so as to coincide with a straight line 36 parallel to the surface of the shutter sheet 30 on a virtual plane orthogonal to the shutter sheet 30 sharing the dividing points 12 and 24. As a result, the lower right side of the straight line 36 of the shutter 1, that is, a triangular portion surrounded by the swing rail piece 14 and the swing weight piece 25 is formed as the hollow door 37, and the hollow door 37 has hinges 15, 27. A straight line 36 connecting the respective hinge pins is configured to be rotatable forward about a rotation center.
[0015]
Further, the swing rail piece 14 is adsorbed and held in the vicinity of the lower floor 4 between both the side surface of the swing side guide rail 10 behind the swing rail piece 14 and the stopper member 42 facing the side surface. A magnet 40 is provided, and a releasable latch mechanism 45 that restricts the opening of the swing rail piece 14 is provided at an appropriate height from the floor surface 4.
[0016]
Further, a flexible film having the same width as that between the inner side surfaces of the left and right guide rails 10 and 11 is alternately bent at a predetermined width on the lower end surface of the weight member 20 and from the front and back sides of the shutter sheet 30. The lower end seal member 60 is formed by having one or more mountain folds 62 and valley folds 63, respectively, and is formed to be stretchable. The mountain folds 62 and the valley folds 63 are formed on the shutter sheet 30. The upper end 64 is closely supported along the lower end of the weight member 20 in a direction facing the front and back sides, and the lower end 65 is attached so as to be a free and extendable free end.
[0017]
Next, the detailed structure of the shutter 1 having the above configuration will be described. First, the pair of left and right guide rails 10 and 11 are made of columnar members having the same structure in cross section, and are arranged on the left and right side walls 3 and 3 in an opposing posture. Each of the guide rails 10 and 11 has a substantially U-shaped peripheral wall and opposed inclined walls 17 and 17 extending in a V-shape from both end edges of the peripheral wall toward substantially the center in the peripheral wall in the horizontal cross section. And an opening 18 formed over the entire length along the longitudinal direction in the valleys of the opposed inclined walls 17, 17, and a columnar member formed with a hollow space 16 inside. .
[0018]
The fixed guide rail 11 is fixed to one side wall 3 in a vertical posture with the opening 18 facing the inside of the passage 2. On the other hand, the swing-side guide rail 10 is divided into an upper fixed rail piece 13 and a lower swing rail piece 14 with an appropriate point slightly below the ceiling wall 5 as a dividing point 12, and both rail pieces. 13 and 14 are connected by a hinge 15 at a dividing point 12, and the opening 18 is formed in the passage so that the lower end of the swing rail piece 14 of the swing side rail 10 is positioned close to the floor surface 4. The fixed rail piece 13 is fixed to the other side wall 3 in a vertical posture toward the inside so that the swing rail piece can swing forward.
[0019]
The hinge 15 is attached to the guide rail 10 so as to be directed obliquely downward so that the center line of the hinge pin (not shown) is aligned with a hinge pin (not shown) of the hinge 27 attached to a dividing point 24 of the weight member 20 described later. . Then, when the swing rail piece 14 of the swing side guide rail 10 rotates forward, the rear end of each of the swing weight piece 25 (described later) supported by the swing rail piece 14 and the end of the swing rail piece 14 is supported. In order not to interfere with the side wall 3 and the floor surface, a slight clearance is secured on the side surface of the swing rail piece 14 facing the side wall 3 and the lower end portion in contact with the floor surface 4. Spacers 14a and 14b made of a conductive material are interposed.
[0020]
Next, the shutter sheet 30 includes a sheet body 31 having a lateral width between the spaces 16 and 16 inside the opposing guide rails 10 and 11, and a length reaching from the winding device 50 above the ceiling wall 5 to the floor surface 4; A total of four strips, which are arranged so as to be overlapped on the front and back along the both end edges 32, 32 of the sheet body 31, and whose outer end edges are in close contact with the end edge section 32 of the sheet body 31 by sewing. It is comprised with the member 33. FIG. The four strip members 33 are formed to have a width slightly narrower than the depth of the space 16 inside the guide rails 10 and 11.
[0021]
The shutter sheet 30 is inserted into the opening portions 18 and 18 of the guide rails 10 and 11 by inserting the edge sewn portions 34 and 34 at the left and right ends, respectively, so that the inner ends of the strip members 33 and 33, that is, the free end portions 35 and 35. Are opened from the sheet body 31, and the surfaces facing the sheet body 31 are brought into contact with the back surfaces of the opposed inclined walls 17, 17,... Of the guide rails 10, 11, respectively. As a result, the band-shaped members 33 and 33 of the respective edge portions 32 of the shutter sheet 30 are in contact with the back surfaces of the opposed inclined walls 17 and 17 of the guide rail 10 (, 11) and block the passage of smoke, gas, etc. The opposite inclined walls 17, 17 of the guide rail 10 (, 11) are opposed to the edge sewn portion 34 of the strip member 33 so that the shutter sheet 30 does not come out of the guide rail 10, (11) and the guide rails 10, 11 It is supported so as to be able to move up and down along the internal spaces 16 and 16.
[0022]
The sheet body 31 and the strip member 33 of the shutter sheet 30 are each formed of a heat resistant material. For example, a woven fabric obtained by weaving glass fibers into a dense structure, silica cloth, or the like as a base fabric, and a heat-resistant sheet obtained by coating a heat-resistant resin such as a silicone resin or a fluorine resin, or a similar material may be used. Moreover, as a method of attaching the edge of the band-shaped member 33 to the edge portion 32 of the sheet body 31, an appropriate method such as sewing, heat welding, combined use of sewing and heat welding, or adhesion with a heat-resistant adhesive is used. Attach with. When attaching the belt-like member 33, the free end portion 35 is attached to the sheet body 31 so as to have a closed hook in order to improve the contact of the guide rails 10 and 11 with the opposing inclined walls 17 and 17.
[0023]
Next, both ends of the weight member 20 are inserted into the openings 18 and 18 of the guide rails 10 and 11, respectively, and the ends thereof are in a direction along the inclination of the back surfaces of the opposed inclined walls 17 and 17 of the guide rails 10 and 11. A pair of bars 21 and 21 made of strip steel bent in a bowl shape and a pair of angle members 22 made of angle steel slightly shorter than the distance between the opposing surfaces of the guide rails 10 and 11 and having a right side surface; 22. The bars 21 and 21 are disposed in close contact with the front and back of the lower end of the sheet body 31 of the shutter sheet 30, and one side surface of the angle members 22 and 22 is brought into contact with the side surface of the bars 21 and 21, respectively. Are arranged horizontally toward the floor surface 4 and the sheet body 31 of the shutter sheet 30 is sandwiched between the bars 21 and 21 by a plurality of mounting bolts 23 and tightened together with the angle members 22 and 22 to be in close contact with the lower end of the shutter sheet 30. Stick. When the free end portions 35, 35,... Of the belt-like members 33, 33,... Sewn on both edge portions 32, 32 of the shutter sheet 30 are connected to the hook-shaped bent portions at both ends of the bars 21, 21, respectively. convenient. By doing so, when the shutter sheet 30 is lowered, both ends of the weight member 20 are moved so that the belt-like member 33 is surely brought into contact with the back surfaces of the opposed inclined walls 17, 17,. The saddle-shaped bend of the lead action.
[0024]
As described above, the weight member 20 is divided into left and right parts at an appropriate position in the left and right width direction (in the drawing, a position slightly to the left of the guide rail 11 on the left side of the passage 2). The dividing points 24 are connected by hinges 27. More specifically, the weight member 20 is divided into a swing weight piece 25 supported on the swing side guide rail 10 side at the dividing point 24 and a fixed weight piece 26 supported on the fixed side guide rail 11. At the same time, a hinge 27 is attached to the dividing point 24 so as to straddle the end of the bar 21 that is in contact with the front side of the shutter sheet, and the fixed weight piece 26 is swingable so that the swinging weight piece 25 can swing forward. Concatenate with For the angle member 22 on the side to which the hinge 27 is attached, the ends of the dividing points 24 facing each other are cut slightly shorter, and the left and right sides of the angle member 22 are rotated when the swinging weight piece 25 rotates forward. The fragments should not interfere with each other.
[0025]
Note that the hinge 27 is oriented obliquely upward so that the center line of the hinge pin (not shown) is aligned with the hinge pin (not shown) of the hinge 15 attached to the dividing point 12 of the swing side guide rail 10 described above. Attach to bar 22.
[0026]
Next, the lower end seal member 60 uses an angle of the weight member 20 by using a flexible film body made of, for example, the same material as that of the shutter sheet 30 having the same width as that between the inner side surfaces of the left and right guide rails 10 and 11. A telescopic bellows that is alternately bent on the front and back sides with a width within the front and rear ends of the material 22 and has one or more mountain folds 62 and valley folds 63 as viewed from the front and back sides of the shutter sheet 30. It is formed by forming into a shape. The lower end seal member 60 is connected to the bent portion of the upper end 64 in the direction in which the mountain fold portion 62 and the valley fold portion 63 face the front and back of the shutter sheet 30, between the bars 21, 21 of the weight member 20. The sheet body 31 is attached in close contact with the sheet body 31. The attachment method of the lower end seal member 60 is not limited to the above. For example, the lower end seal member 60 may be attached by an appropriate method such as bonding the upper end 64 to the lower surface of the angle member 22 of the weight member 20 or screwing it via a pressing member.
[0027]
Next, the magnet 40 is attached to the front side of the stopper member 42 fixed to the side wall 3 of the passage 2, and the swing rail piece 14 below the hinge 15 of the swing guide rail 10 is fixed on the upper side. In a state of being suspended in a straight line with respect to the piece 13, that is, in a state where the swing side rail piece 14 is in contact with the stopper member 42, the rear side surface of the swing side rail piece 14 is sucked and held. The magnet 40 is attached to the vicinity of the floor surface of the stopper member 42, and the swing side rail piece 14 is preferably made of a ferromagnetic material such as steel, but the swing side rail piece 14 is made of a non-magnetic material. In this case, a method of attaching an attracting piece made of a ferromagnetic material or a magnet having a polarity opposite to that of the magnet to a height corresponding to the attachment position of the magnet 40 may be adopted on the swing side rail piece 14. As for the magnet attracting means, a magnet may be attached to the swing rail piece 14 side and a ferromagnetic material may be attached to the stopper member 42 side.
[0028]
The stopper member 42 is a member that abuts the back of the swing rail piece 14 and restricts the swing of the swing rail piece 14 to the rear side, and the side end is fixed to the side wall 3 of the passage 2. In addition, an abutting portion 43 that abuts and supports the swing side rail piece 14 is formed to protrude forward. In addition to attaching the magnet 40 to the stopper member 42, a latch receiving member 47 of a latch mechanism 45 described later is attached.
[0029]
Next, the latch mechanism 45 has an operation handle 48 of the latch mechanism 45 attached to the swing rail piece 14 of the swing side guide rail 10 at an appropriate height from the floor surface, and the latch pawl 46 that is biased downward is attached. The latch claw 46 is attached to the swing rail piece 14 below the operation handle 48, and the latch claw 46 and the operation handle 48 are coupled via a rod 49, while the latch claw 46 of the stopper member 42 faces the latch claw 46. The latch receiving tool 47 with which the front-end | tip part engages is attached and comprised. The front end of the latch claw 46 is a vertical surface, and a tapered slope is formed on the rear side surface. On the other hand, the latch receiver 47 is formed with an inclined surface whose front end surface is inclined downward, and the rear end of the inclined surface is vertically cut downward. Further, when the operation handle 48 is operated, the latch claw 46 biased downward via the rod 49 can be moved backward and forward.
[0030]
In the latch mechanism 45 having the above-described configuration, when the operation handle 48 is pushed forward, the rod 49 is lifted by the latch claw 46 in conjunction with the operation, and the engagement between the latch claw 46 and the latch receiver 47 is released. . When the hand is released from the operation handle, the latch claw 46 advances downward with an urging force. The latch mechanism 45 is released as described above, the open door 37 is opened forward, and after a person passes, the close door 37 automatically closes by its own weight. When the swing rail piece 14 of the door 37 approaches the vertical position, the slope of the latch pawl 46 comes into contact with the slope of the latch receiving member 47 and the latch pawl 46 is pushed upward, so that the latch pawl 46 moves backward, At the position where the swing rail piece 14 is vertical, the inclined surface of the latch claw 46 is disengaged from the inclined surface of the latch receiver 47, and the latch claw 46 moves downward by the urging force, and the vertical surface at the front end of the latch claw 46 is latched. The bore door 37 abuts on the vertical notch at the rear end of the slope of the tool 47 and is held.
[0031]
Next, the winding device 50 includes a roller 51 installed horizontally above the ceiling opening 54 formed through the ceiling wall 5 between the outer ends of the guide rails 10 and 11, and a driving device that drives the roller 51. 52, and a chain 53 as a speed reduction mechanism for connecting the roller 51 and the driving device 52 to each other.
[0032]
The total length of the roller 51 of the winding device 50 is substantially equal to the entire width of the shutter sheet 30 or slightly longer than the distance between the inner ends of the belt-like members 33 attached to the end edges 32, 32 of the shutter sheet 30. shorten. In the former case, the belt-like member 33 of the shutter sheet 30 is wound around the roller at both ends, so that the sheet body 31 of the wound shutter sheet 30 has an interlayer gap corresponding to the thickness of the two belt-like members 33. Although it is wound in a form, since the belt-like member 33 has an appropriate width, the winding is not disturbed. On the other hand, in the latter case, the sheet body 31 of the shutter sheet 30 is tightly wound in a form that does not generate an interlayer gap, and the band-shaped member 33 is positioned away from both ends of the roller 51. The portion 33 is wound in such a manner that the lower layer side is pushed in the axial direction of the roller and the upper layer side is slightly repelled in the pushing direction from the lower layer side, but the winding length of the shutter sheet is substantially equal to the height of the passage 2. Now, this length is usually about 2 m to 3 m, and it is easy to take up orderly without being disturbed by setting the diameter of the roller 51 so that the number of winding layers does not become excessively large. .
[0033]
In addition, a sealing member 55 made of a flexible material having a slit 56 formed in the center over the entire width in the left-right width direction is attached to the ceiling opening 54 in close contact with the ceiling wall 5, and the shutter sheet 30 passes through the slit 56. And go up and down. Accordingly, it is possible to prevent the seal member 55 from coming into contact with the front and back of the shutter sheet 30 and leaking to the smoke or gas ceiling or to the front of the shutter 1. The seal member 55 may be attached to the ceiling wall 5 so as to be in contact with the left and right guide rails 10 and 11, or as shown in the figure, a frame that covers the outer upper portion of the guide rails 10 and 11 by crossing the upper ends thereof. More preferably, the body is attached to the ceiling wall 5 and the seal member 55 is attached to the upper surface of the frame. A portion surrounded by a frame between the seal member 55 and the opening 54 of the ceiling wall 5 in the attached drawing is a space for storing the upper portion of the weight member when the shutter sheet is wound up.
[0034]
Next, the operation of the shutter 1 having the above configuration will be described. When a fire occurs, the winding device 50 is operated to lower the shutter sheet 30 along the guide rails 10 and 11, and the lower end 65 of the free end of the lower end seal member 60 at the lower end of the weight member 20 is landed on the floor surface 4. Further, the lower end seal member 60 is lowered to the extent that it is slightly pressed by the weight member, and the passage 2 is closed and closed. When the evacuee passes through the closed shutter 1, the latch is released by operating the operation handle 48 of the latch mechanism 45 and is pushed forward with a force exceeding the attractive force of the magnet 40 while holding the handle 48. Then, the hollow door 37 rotates forward (in the direction of the one-dot chain line in FIGS. 3 and 4) to open a triangular evacuation port, and evacuates through the evacuation port. At this time, the lower end seal member 60 bends at the dividing point 24 of the weight member 20, but the lower end seal member 60 follows the rotation of the weight member 20 due to its own flexibility and bending back and forth. Can bend freely. After the evacuation, the gate door 37 naturally closes with its own weight, and when the gate door returns to the vertical position, the magnet 40 attracts and holds the lower portion of the swing rail piece 14 of the gate door 37, and at the same time the latch mechanism 45. Is activated to automatically lock the swing rail piece 14, and the swing rail piece 14 is supported from behind by a stopper member 42 to prevent the swing door 37 from swinging backward.
[0035]
In the shutter 1, the dead weight of the underdoor 37 is supported by the hinges 27, 15 of the dividing point 24 of the weight member 20 and the dividing point 12 of the swing side guide rail 10 around the oblique straight line 36 as the center of rotation. Therefore, it can be opened and closed with a light operating force. The positional relationship between the hinges 27 and 15 is determined so that the opening width of the door 37 from the floor surface 4 to the height of the wheelchair is secured so as not to hinder the passage of the wheelchair. A disabled person in a wheelchair can easily push open and evacuate.
[0036]
Further, when the wind pressure acts on the shutter sheet, the shutter sheet 30 expands, and the end portions of the opposed inclined walls 17 and 17 of the guide rails 10 and 11 are the belt-like members 33 and 33 and the edge sewn portions 34 and 34 of the shutter sheet 30. The belt-shaped member 33 is in close contact with the opposing inclined wall 17 of the guide rail. On the other hand, the wind pressure acting on the lower end seal member 60 acts to expand the valley fold 63 and expand the lower end seal member 60 in the vertical direction, and the upper end 64 is restrained by the weight member 20, so the lower end 65 is the floor surface. 4 is stronger and closer. With the above operation, the airtightness of the gap between the shutter sheet 30 and the guide rails 10 and 11 and the gap between the weight member 20 and the floor surface 4 is increased, and leakage of smoke and gas from the shutter 1 is prevented. be able to. The gap between the ceiling opening 54 and the shutter sheet 30 is kept airtight by the seal member 55.
[0037]
Next, an outline of another embodiment not shown in the attached drawings will be described. First, the internal structure of the guide rails 10 and 11 may be in any form as long as it has a structure satisfying the function of preventing the passage and leakage of smoke and gas by supporting the shutter sheet so as to be movable up and down. Is not limited to the structure described above. In other words, the internal structure of the guide rail may be appropriately determined in design according to the structure of the shutter sheet edge. For example, a lobe-like member is attached along the left and right edges of the sheet body of the shutter sheet, and the guide rail has a simple slit-like opening having no inclined wall at the opening or a slit-like opening having a similar shape and a wide inside. A space and a seal member attached to the opening, and supports the rope-like member at the edge of the sheet body so that the rope-like member can be moved up and down along the space in the guide rail, and has a locking function to prevent the slip-out from coming out by the slit-like opening. It may be configured to restrict the passage leakage of smoke and gas by bringing the sealing member of the opening into contact with the sheet body.
[0038]
The weight member 20 is also divided into a swing side weight piece and a fixed weight piece, and the swing side weight piece is connected to the swing rail piece together with a swing rail piece by a hinge so as to be pivotable forward. As long as the basic configuration is provided, the detailed member configuration and the structural form thereof are configured such that the sheet body 31 is sandwiched from the front and back using the bar 21 and the angle member 22 as described above. Not limited to this, various forms of members may be used to form appropriate configurations.
[0039]
Furthermore, in order to prevent the passage of smoke and gas more reliably, for example, a seal between a gap between the side surface of the swing side guide rail 10 and the side wall 3 and between a lower end of the swing side guide rail 10 and the floor surface 4 is used. The structure is not limited to the spacers 14b and 14a in the accompanying drawings, and may be replaced with a sealing means having an appropriate form. Further, the sealing means for the gap between the floor surface 4 and the weight member 20 is not limited to the lower sealing member 60 shown in the accompanying drawings, and may be an appropriate form of sealing means. For example, when the lower seal means formed into an appropriate shape using a material having flexibility and elasticity is brought into close contact with the lower end of the weight member 20, the shutter sheet 30 is lowered and the weight member 20 is landed. In addition, the weight member 20 may be structured to press the lower sealing means against the floor surface 4.
[0040]
Concerning the latch mechanism 45 of the underdoor 37, the operation handle 48, the latch pawl 46, and the rod 49 may be attached to the stopper member 42 side, and the latch receiver 47 may be attached to the guide rail side, contrary to the above description. In that case, the inclined surfaces of the tip portions of both the touch claw 46 and the latch receiver 47 may be set in the direction opposite to that described above.
[0041]
The hollow door 37 is configured such that the hinge 15 on the swing side guide rail 10 side and the hinge 27 on the weight member 20 side allow forward rotation about the straight line 36. However, the gap between the member abutting portions behind the hinge attachment surfaces of the dividing points 12 of the upper and lower rail pieces 13 and 14 of the guide rail 10 and the dividing points 24 of the left and right weight pieces 25 and 26 of the weight member is small. The allowable range of backward rotation is limited to a slight angle due to interference between ends or restrictions on the mechanism of the hinge itself. Therefore, the rearward rotation of the door is restricted even if the contact portion 43 of the stopper member 42 is not necessarily provided. Therefore, when the structure is designed so that the backward rotation is restricted as described above, the magnet is embedded in either the side wall 3 or the surface of the swing rail piece 14 in contact with the side wall 3 and is made of a ferromagnetic member or the like. You may attach in the form which embed | buries the adsorption | suction end surface of the other member on the other side. Similarly, the latch mechanism is configured such that either the latch claw or the latch receiver is embedded in the side wall 3 and the other is embedded in the surface in contact with the side wall 3 of the swing rail piece 14 so that the latch claw is moved back and forth in the left-right direction. The operation handle may be provided on either the side wall 3 or the swing rail piece 14.
[0042]
Next, another embodiment of the shutter according to the present invention is shown in FIGS. The shutter 1a shown in FIGS. 10 to 12 is slightly different from the above-described shutter 1 in the configuration of the swing side guide rail, the weight member, and the hollow door constituted by them. FIG. 10 is a partial view of the lower part of the shutter 1a as viewed from the front side. FIG. 11 is a vertical cross section perpendicular to the shutter sheet in the weight member portion of the shutter in FIG. The cross section seen in the direction of the arrow line, (b) is an enlarged view of the cross section seen in the direction of the arrow BB in FIG. Further, FIG. 12 shows an enlarged cross section seen in the direction of the arrow CC in FIG. 10 to 12, the latch mechanism is not shown, and the same components as those of the shutter 1 (see FIGS. 1 to 9) described above are indicated by the same reference numerals.
[0043]
In the shutter 1a, the right guide rail 19 in FIG. 10 of the pair of left and right guide rails 11 and 19 is divided into an upper rail 19a, an intermediate rail 19b, and a lower rail 19c, and the upper rail 19a and the lower rail 19c are The intermediate rail 19b is fixed to the side wall 3, and the upper end of the intermediate rail 19b is connected to the lower end of the upper rail 19a so that the lower end can swing forward, and the intermediate rail 19b is connected to each other in a vertical straight line. On the other hand, the weight member 20a of the shutter 1a includes a main body portion 20b that engages with the left and right guide rails 11 and 19c, both ends of which are fixed to the side walls when the shutter sheet 30 descends and reaches the floor, and the main body portion 20b. One end is connected to an appropriate intermediate point in the upper width direction, and the other end includes horizontal swinging pieces 21 a and 21 c that engage with the lower end of the intermediate rail 19 b of the guide rail 19. As a result, the triangular portion formed by the straight line 36 connecting the connecting portion of the intermediate rail 19b and the connecting portion of the swinging pieces 21a and 21c, the intermediate rail 19b, and the swinging pieces 21a and 21c is rotated forward. It is possible to make a counterbore 37a. The upper end of the intermediate rail 19b of the door 37a and the connecting portions of the swinging pieces 21a and 21c are connected by hinges 15 and 27 in which hinge pins (not shown) are arranged in the direction along the straight line 36. Note that the horizontal cross-sectional shape of the guide rail 11 fixed to the side wall and the guide rail 19 in which the middle portion is attached so as to be able to rotate forward is the same as that of the fixed side guide rail 11 and the swing side guide rail 10 of the shutter 1 described above. It is formed into a form.
[0044]
The weight member 20a will be described in more detail. The weight member 20a engages with the inner surfaces of the opposing inclined walls 17 and 17 of the left and right guide rails 11 and 19 at both ends, and can be moved up and down along the opening 18 (see FIGS. 7 and 8). A vertical main body 20b having a substantially rectangular cross-section with a hook-like engagement portion supported by the head, and a vertical seat mounting member standing above the main body 20b from the left end to the middle of the weight member 20a 20c, a bar 21b facing the front of the seat mounting member 20c and having the same length as the seat mounting member 20c, and a pair of front and rear connected to the right end of the seat mounting member 20c and the bar 21b by a hinge 27 so as to be pivotable forward. The rocking pieces 21a and 21c are included. The swing piece 21c has a vertical portion in contact with the sheet surface of the sheet body 31, a horizontal portion connected to the lower end of the vertical portion, and a stopper portion connected vertically downward to the front end of the horizontal portion, and is stepped in a side view. The stopper portion is in contact with the front end surface of the weight member main body portion 20b and functions to prevent the swinging pieces 21a and 21c from rotating backward and to block smoke and gas.
[0045]
The main body portion 20b has a structure in which a seal attachment member 20d facing the lower surface thereof can be attached with a bolt 23 or the like. Further, the end of the seat mounting member 20c, the bar 21b on the guide rail 11 side, and the end of the swinging pieces 21a, 21c on the guide rail 19 side are bent into a bowl shape having the same shape as both ends of the main body 20b. And engaging portions that are supported so as to be movable up and down along the guide rails.
[0046]
With the above configuration, the lower end of the sheet body 31 of the shutter sheet 30 is positioned on the front side surface of the seat mounting member 20c and the swing piece 21c of the weight member 20a, and the bar 21b is moved to the left from the front, and the swing piece 21a is moved to the right. The weight member 20a can be attached to the lower end of the sheet body 31 with the sheet body 31 interposed therebetween and tightened with the bolt 23 so that the lower end portion of the sheet body 31 is sandwiched and closely contacted with the opposing member.
[0047]
With the above structure, the lower end of the sheet body 31 of the countersink 37a cooperates with the opposing swinging pieces 21a and 21c, and engages with the lower end of the intermediate rail 19b. As well as preventing backward rotation and blocking smoke and gas. Although illustration is omitted, it is convenient to further improve the airtightness by interposing a seal member made of a heat resistant material between the swing piece 21c and the main body 20b. The upper end 64 of the lower end seal member 60 is positioned on the lower surface of the main body portion 20b, and is sandwiched by the seal attachment member 20d. The seal attachment member 20d is fastened and fixed to the main body portion 20b with the bolts 23, and the weight member. It is configured to prevent leakage of smoke and gas from the gap between the lower surface 20a and the floor surface 4.
[0048]
A short connecting pin 38 protruding rearward is provided at a position near the guide rail 19 on the rear side surface of the swing piece 21c, and at a position corresponding to the connecting pin 38 of the weight member main body 20b. A connecting member 39 having a fitting hole 39a for fitting the connecting pin is provided at a position standing upward and facing the connecting pin 38, and in the state in which the door 37a is closed vertically, the vicinity of the end on the side of the door 37a. The connection pin 38 is set to be engaged with the connection member 39. With this structure, when the shutter sheet is raised and lowered, the swinging pieces 21a and 21c, that is, the lower end of the sheet body 31 and the end on the guide rail 19 side of each weight member main body 20b are connected so as not to be separated from each other. The weight of the member 20a acts on the sheet body 31 equally on the left and right.
[0049]
The connection structure between the end of the weight member 20a and the guide rails 11 and 19 is shown in FIG. 12 and the like, and FIG. 12 is substantially the same structure as the configuration of FIG. It is supported along the part 18 so that raising and lowering is possible. Although illustration and detailed description are omitted, both end edges 32 and 32 of the sheet body 31 have the same structure as that in FIG. 7 of the above-described embodiment, and the sheet body does not come off from the guide rails 11 and 19. And is supported so as to be movable up and down along the opening 18.
[0050]
In the shutter 1a having the above-described configuration, the swinging pieces 21a and 21c at the lower end of the hollow door 37a support the outer end at the lower end of the intermediate rail 19b supported to be able to rotate forward, and the inner end is connected to the side walls 3 and 3. The weight member main body 20b is engaged with the fixed guide rail 11 and the lower rail 19b and is supported non-oscillatingly so as to be coupled and supported via a hinge 27. A hollow door 37a has a weight member 20a. Since the shutter 1a is supported by the side wall via the fixed rail portion, it can withstand larger wind pressure such as smoke and gas acting on the shutter 1a in the event of a fire. is there. Further, similarly to the above-described hollow door 37 of the shutter 1, the magnet 40 and / or the latch mechanism 45 similar to FIGS. 3 and 4 can be provided at the opposing portion of the stopper member 42 and the intermediate rail 19 b. The shutter 1a can be designed to have a practically sufficient strength even when the weight member main body portion 20b below the hollow door 37a is usually about 20 mm in height, and there is no hindrance to the passage of the wheelchair. If an inclined member (not shown) is formed on the wheelchair, it is even easier to pass the wheelchair.
[0051]
【The invention's effect】
The fireproof / smokeproof shutter provided with the hollow door according to claim 1 as described above is obliquely formed at two appropriate points near the upper end of one of the pair of guide rails and in the middle of the weight member in the width direction. The members are divided along a straight line to be joined, and the straight line, the swing rail piece on the lower side of the straight line, and one swing weight piece of the weight member on the side supported by the swing rail piece, And a structure in which each divided portion of the guide rail and the weight member is connected by a hinge member so that the hollow door can be rotated in the forward escape direction about the straight line. As a result, most of the weight of the door in opening and closing is supported by the hinge member, and the acting force during opening and closing operation is small. In other words, the guide rail of the shutter and the weight member are obliquely divided to form a hollow door, so unlike the method of flipping up the entire shutter and passing through it, even if the height of the exit is designed sufficiently high, even with a slight operating force There is an effect that opening and closing operations of the door can be performed. Therefore, even elderly people, children, injured persons, disabled persons in wheelchairs, etc. can easily escape and evacuate. Also, because the shutter door opens and closes with an oblique line as the center of rotation, the dead weight of the door acts in the closing direction, and after exiting, it closes naturally and is not left open. effective.
[0052]
On the other hand, a fireproof / smokeproof shutter provided with a hollow door according to claim 2 of the present invention fixes one guide rail to the side wall, and the other has a short upper and lower rail respectively fixed to the side wall, and a lower end. The weight member includes an integral weight member main body portion having both ends supported by left and right guide rails, and the weight member. Consists of a horizontal swing piece with one end connected to the intermediate part in the width direction of the main body by a hinge member that can be rotated forward and the other end supported by a guide rail on the side having the intermediate rail, and the shutter seat is lowered and attached When the floor is placed, the weight member main body is set to be supported by the lower rail and the swing piece is supported by the intermediate rail. Since the door wicket triangular portions formed by the straight line connecting, the weight member body is dynamically supported HiYura.
[0053]
That is, the entire width of the lower end and the lower end seal member of the portion excluding the hollow door of the shutter sheet is fixedly held at the left and right ends via the main body portion of the weight member. Therefore, most of the wind pressure acting on the shutter sheet is supported by the guide rail fixed to the side wall, and the wind pressure acting on the underdoor is supported by the non-oscillating member about half of the wind pressure. The supporting wind pressure is the remaining slight pressure. Furthermore, since the lower end seal member is pressed by the weight member main body portion and does not bend even when the underdoor is opened and closed, there is an effect that safety and reliability are further improved such as no risk of damage. In addition, the portion of the weight member main body that becomes the sill of the underdoor can be about 20 mm in height in terms of structural strength, and this step can be easily passed by the wheelchair, but before and after this sill It is also possible to form an inclined surface to further facilitate the passing of the wheelchair.
[0054]
According to a third aspect of the present invention, there is provided a fireproof / smokeproof shutter having a hollow door, wherein the swing guide rail below the hinge member is suspended in a straight line with respect to the guide rail on the upper side. Since the magnet attracting means for attracting and holding the side swing guide rail is provided on the building wall, the magnet attracts and holds the open / close end of the door in a closed state, and wind pressure exceeding the range of magnet attracting force acts. Until there is an effect that is not released.
[0055]
According to a fourth aspect of the present invention, there is provided a fireproof / smokeproof shutter having a swing door in a state in which a swing guide rail on a lower side than a hinge member is suspended in a straight line with a guide rail on an upper side. Since a releasable latch mechanism that locks and holds the side swing guide rail is provided on the building wall, the latch mechanism automatically locks and holds the open / close end, and a stronger wind pressure acts. However, there is an effect that it is not opened.
[0056]
In addition, the fire or smoke-proof shutter according to the present invention includes a stopper member, a magnet or a latch mechanism, and the like, which is different from a method in which the entire shutter is pushed forward to escape. The latch mechanism is not required to have an interlocking mechanism structure that extends over the left and right guide rails, so that the structure is simple and the cost and the installation work cost are reduced.
[0057]
In addition, the fire or smoke-proof shutter provided with the cutout door according to the present invention is a material for each component including a shutter sheet and the like, in accordance with the standards of the heat-resistant temperature and the durability time determined by the law etc. according to the place of use. By selecting a suitable heat-resistant material, as described above, it is installed between the end of the entrance / exit partition wall provided on the partition wall of the building or between both side walls of the passage, for example, attached to the door frame of the elevator door Thus, it can be used as a means for preventing the diffusion of smoke or gas during a fire or blocking the flame.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of a fireproof or smokeproof shutter provided with a hollow door according to the present invention, as viewed from the front.
2 is a view showing a state in which a shutter sheet of a fireproof or smokeproof shutter provided with the hollow door of FIG. 1 is wound up and stored. FIG.
3 is an enlarged side view of the fireproof or smokeproof shutter provided with the underdoor shown in FIG. 1 as viewed from the right side, and a two-dot chain line shows a state in which the underdoor is opened with the latch mechanism omitted.
4 is an enlarged side view of a latch mechanism portion of a fireproof or smokeproof shutter provided with the underdoor of FIG. 1 as viewed from the right side surface.
5 is an enlarged partial view of a lower right portion of a weight portion of a fireproof or smokeproof shutter provided with the underdoor shown in FIG. 1. FIG.
6 is a cross-sectional view of the portion shown in FIG. 5 as viewed from the left with a vertical cross-section at the middle portion of the shutter sheet. FIG.
7 is a cross-sectional view seen in the direction of the arrows XX in FIG.
8 is a cross-sectional view taken in the direction of arrows YY in FIG.
9 is a partially enlarged view showing a winding device portion of a fireproof or smokeproof shutter provided with the underdoor shown in FIG. 1;
FIG. 10 is a partial front view showing another embodiment of a fireproof or smokeproof shutter provided with a hollow door according to the present invention, as seen from the front of the shutter.
11 is an enlarged vertical cross-section perpendicular to the shutter sheet in the weight member portion of the shutter of FIG. Sectional views seen in the direction of the arrows are respectively shown.
12 is an enlarged cross-sectional view seen in the direction of the arrow CC in FIG.
[Explanation of symbols]
1,1a Shutter
2 passage
3 Side wall (wall edge)
4 Floor
5 Ceiling walls
10 Guide rail (oscillating side guide rail)
11 Guide rail (fixed side guide rail)
12 division points
13 Fixed rail piece
14 Swing rail piece
14a, 14b Spacer
15 Hinge
16 spaces
17 Opposite inclined wall
18 opening
19 Guide rail (oscillating side guide rail)
19a Upper rail
19b Intermediate rail
19c Lower rail
20 Weight member
20a Weight member
20b Weight member main body (main body)
20c Seat mounting member
20d Bottom seal mounting member
21 bar
21a, 21c Oscillating piece
21b bar
22 Angle material
23 Mounting bolt
24 division points
25 Oscillating weight piece
26 Fixed weight pieces
27 Hinge
30 Shutter sheet
31 sheet body
32 Edge
33 Band-shaped member
34 Edge seam
35 free end
36 straight lines
37, 37a
38 Connecting pin
39 Connecting members
39a Mating hole
40 Magnet
42 Stopper member
43 Contact part
45 Latch mechanism
46 latch claw
47 Latch holder
48 Operation handle
49 Rod
50 Winding device
51 rollers
52 Drive device
53 chain
54 Ceiling opening
55 Sealing member
56 slits
60 Bottom seal member
61 Membrane
62 Mountain fold
63 Valley fold
64 Top
65 Bottom

Claims (4)

A pair of opposing guide rails installed substantially perpendicular to the left and right wall ends of the entrance / exit or passage, and left and right end edges are supported so as to be movable up and down along the guide rails, and the lower end along the guide rails And a shutter sheet having a horizontal weight member supported at both ends so as to be movable up and down, and a suitable point near the upper end of one of the pair of guide rails and the width direction of the weight member The two members are divided at the point where a straight line connecting two points with an appropriate intermediate point intersects the two members, and when the shutter sheet is lowered, the straight line and the lower part of the straight line A triangular portion composed of a guide rail on the side and one piece of the weight member on the side supported by the lower guide rail is used as a hollow door, and can be rotated forward about the straight line. The composed each division point of the guide rail and the weight members from the configuration in which hinged member, fire or smoke shutters with a wicket door so. A pair of opposing guide rails installed substantially perpendicular to the left and right wall ends of the entrance / exit or passage, and left and right end edges are supported so as to be movable up and down along the guide rails, and the lower end along the guide rails A shutter having a horizontal weight member supported at both ends so as to be movable up and down, and one of the guide rails is divided into a short upper rail, an intermediate rail, and a short lower rail. The upper rail and the lower rail are fixed to the wall ends, respectively, and the intermediate rail is connected to the lower end of the upper rail so as to be able to swing forward so that the weight members are connected to each other in a vertical straight line. Is a side having one end connected to an appropriate intermediate point in the width direction above the main body and the other end having the intermediate rail. A horizontal swing piece that engages with the guide rail, and includes a straight line connecting the connecting portion of the intermediate rail and the connecting portion of the swing piece, the intermediate rail, and the swing piece. A fireproof or smokeproof shutter provided with a hollow door having a triangular portion as a hollow door and a hinge member provided in the connecting portion so as to be able to rotate forward about the straight line. Magnet adsorbing means for adsorbing and holding the lower rotating guide rail in a state where the lower rotating guide rail is suspended in a straight line with respect to the upper guide rail of the lower door guide rail side hinge member. The shutter for fire prevention or smoke prevention provided with the hollow door of Claim 1 or 2 which is provided with respect to the wall of a building. With the pivoting guide rail on the lower side of the guide rail side hinge member of the chest door suspended in a straight line with the upper guide rail, the lower pivoting guide rail can be released and locked. The shutter for fire prevention or smoke prevention provided with the hollow door in any one of Claims 1-3 which provides a latch mechanism with respect to the wall of a building.

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