JP5154073B2 - Elevator doorway door device - Google Patents

Description

  The present invention relates to an elevator doorway door device that prevents smoke from flowing at the doorway between an elevator hoistway and an elevator hall.

  In general, between an elevator hoistway installed in a building and an elevator hall, a three-sided frame composed of an upper frame part and a pair of side frame parts (vertical frame part), and a sill laid at the lower part of the three-sided frame, A doorway bordered by is provided. And the door which opens and closes the said entrance / exit is suspended by the door rail installed in the said three-way frame upper part, and is installed in the state guided by the said threshold. Such doors are opened and closed when the elevator car arrives in the elevator hall. To ensure smooth opening and closing operations, a predetermined gap is provided between the door and the three-way frame and sill. Yes.

  For example, when a fire occurs in a building and the elevator hall is filled with smoke, the smoke may flow into the hoistway from the gap at the entrance / exit. In this case, the hoistway functions as a chimney, which may increase the fire power. There is also concern about the possibility that smoke may circulate in the building through the gaps provided at the entrances and exits of each floor of the building and expand the fire damage.

  For this reason, various smoke shielding devices that block ventilation between the hoistway and the elevator hall may be installed at the entrance / exit. The smoke shield device prevents the inflow of smoke into the hoistway by deploying a screen, an openable fire door, or the like, which is a fire prevention facility covering the entire entrance, to the elevator hall side.

  However, such fire prevention equipment tends to have a large installation area, and therefore, the entrance / exit is not only narrowed, but the appearance of the elevator hall is impaired.

  Patent Document 1 describes a conventional technique that includes a sealing member that seals a gap between a door, a three-sided frame, and a sill, and improves airtightness between the hoistway and the elevator hall without impairing the appearance of the elevator hall. Has been. For example, the sealing member ensures airtightness at the entrance by bringing a plate-like sealing member provided on the door side into contact with the three-way frame and the sill.

JP 2005-29331 A

  However, in the prior art described in Patent Document 1, the sealing member is always in close contact with the three-way frame or the sill, particularly in the upper part and the lower part of the door. Accordingly, when the door is opened and closed, the smooth opening and closing of the door is hindered by friction between them, and noise and noise are generated. Furthermore, wear and deterioration of the sealing member are caused.

  The present invention has been made in consideration of the above problems, and suppresses noise and noise in an elevator doorway door device that blocks smoke from flowing at the doorway between the elevator hoistway and the elevator hall. It is an object of the present invention to provide an elevator doorway door device that can smoothly open and close the door and does not impair the appearance of the doorway.

  The elevator doorway door device according to the present invention includes a three-way frame provided at a doorway between an elevator hoistway and an elevator hall, a sill provided at a lower part of the three-way frame, and an upper part of the sill, An elevator entrance / exit door device comprising a door disposed opposite to the hoistway side of the three-way frame, comprising an upper smoke shielding mechanism that closes a gap between the door and the upper frame portion of the three-way frame. The upper smoke shielding mechanism is provided along the longitudinal direction of the upper edge portion of the door and the guide member provided along the longitudinal direction of the upper frame portion of the three-way frame, and the link member is coupled. By rotating the link member, it has a smoke-shielding member configured to be in close contact with or separated from the guide member, and the link member rotates according to the open / closed state of the door, When the door is closed, the smoke shield member In close contact with the serial guide member, when said door is opened, characterized in that said Saegikemuri member is separated from the guide member.

  The elevator doorway door device according to the present invention includes a three-way frame provided at a doorway between an elevator hoistway and an elevator hall, a sill provided at a lower part of the three-way frame, and an upper part of the sill An elevator doorway door device comprising a door disposed opposite to the hoistway side of the three-way frame, and an upper smoke shielding mechanism for closing a gap between the door and the upper frame portion of the three-way frame The upper smoke-shielding mechanism includes a guide member provided along the longitudinal direction of the upper frame portion of the three-way frame, a guide rail provided along the longitudinal direction of the upper frame portion of the three-way frame, A smoke shielding member provided along the longitudinal direction of the upper edge portion of the door and supported by a guide roller that moves on the guide rail, a state provided on the guide rail, and the door closed And a groove part into which the guide roller enters, When the door is closed, when the guide roller enters the groove, the smoke-shielding member is pulled down through the guide roller and comes into close contact with the guide member, and the door is opened. The guide roller is separated from the groove and positioned on the guide rail, whereby the smoke shielding member is pushed up through the guide roller and separated from the guide member.

  Furthermore, the door device for an elevator entrance / exit according to the present invention includes a three-way frame provided at an entrance / exit between an elevator hoistway and an elevator hall, a sill provided at a lower part of the three-way frame, and an upper part of the sill A door device of an elevator entrance / exit comprising a door disposed opposite to the hoistway side of the three-way frame, and comprising a lower smoke shielding mechanism for closing a gap between the door and the sill, The smoke shielding mechanism is provided along the longitudinal direction of the lower edge portion of the door, and the link member is connected, and the link member is rotated so that the smoke shielding mechanism can be in close contact with or separated from the sill. When the door is closed, the smoke shield member comes into close contact with the sill and the door is opened by rotating the link member according to the open / closed state of the door. When the smoke shield member is separated from the sill, Characterized in that it.

  Furthermore, an elevator doorway door device according to the present invention includes a three-way frame provided at a doorway between an elevator hoistway and an elevator hall, a sill provided at a lower part of the three-way frame, In the upper part, the door device of the elevator entrance and exit comprising a door disposed opposite to the hoistway side of the three-way frame, comprising a lower smoke shielding mechanism for closing a gap between the door and the sill, The lower smoke shielding mechanism is provided along the longitudinal direction of the lower edge portion of the door, and is provided on the sill with a smoke shielding member supported via a guide roller moving on the sill, and the door is closed. A groove portion into which the guide roller enters, and when the door is closed, the guide roller enters the groove portion, so that the smoke shielding member passes through the guide roller. Pulled down and in close contact with the threshold, the door By located on the sill and the guide roller is disengaged from the groove when the he, characterized in that said Saegikemuri member is separated from the sill is pushed up through the guide rollers.

  Still further, an elevator doorway door device according to the present invention includes a three-way frame provided at a doorway between an elevator hoistway and an elevator hall, a sill provided at a lower part of the three-way frame, and the sill of the sill An elevator entrance / exit door device including a door disposed on an upper side of the three-way frame so as to face the hoistway side, and blocking a gap between the door and the side frame of the three-way frame. A smoke mechanism, and the side smoke shielding mechanism is provided along a longitudinal direction of a side edge portion of the door and a first smoke shielding member provided along a longitudinal direction of the side frame portion of the three-sided frame. A second smoke shielding member, and the first smoke shielding member is rotatably provided via a rotation axis along a longitudinal direction of the side frame portion of the three-sided frame, and the door is closed. When the first smoke shield member is pushed by the second smoke shield member and rotates, the first smoke shield member is rotated. Characterized in that said a timber second Saegikemuri member are in close contact.

  The elevator doorway door device according to the present invention includes a three-way frame provided at a doorway between an elevator hoistway and an elevator hall, a sill provided at a lower part of the three-way frame, and an upper part of the sill In addition, a door device for an elevator entrance / exit including a door disposed opposite to the hoistway side of the three-way frame, and smokes side portions that block a gap between the door and the side frame portion of the three-way frame. The side smoke shielding mechanism is provided along the longitudinal direction of the side frame portion of the three-way frame, and is bent in a direction away from the door, and the longitudinal side edge portion of the door. A smoke shielding member provided along a direction, and when the door is closed, the smoke shielding member abuts on the bent portion and elastically deforms along the bent portion. Thus, the smoke shielding member and the bent portion are in close contact with each other.

  Furthermore, the door device for an elevator entrance / exit according to the present invention includes a three-way frame provided at an entrance / exit between an elevator hoistway and an elevator hall, a sill provided at a lower part of the three-way frame, and an upper part of the sill An elevator doorway door device comprising a door disposed opposite to the hoistway side of the three-way frame, wherein the door is a double-opening type composed of a pair of panels, The door stopper smoke proofing mechanism is provided along the longitudinal direction of the door holder of one panel, and the curved part is formed on the other panel side. And a smoke shielding member provided along the longitudinal direction of the door stop of the other panel, and when the door is closed, the smoke shielding member abuts on the curved plate, By elastically deforming along the plate, the smoke-shielding member and the curved plate are closely packed. Characterized in that it.

  According to the present invention, in a state in which the door is closed, a smoke shielding mechanism that closes a gap formed between the door and the three-sided frame and the sill or in the door holding portion is provided, thereby allowing the smoke to flow from the gap. Can be prevented. In this case, by providing a link member or the like in each smoke shielding mechanism, it is possible to effectively suppress wear and deterioration of the smoke shielding member even when the door opening / closing operation is frequently repeated. For this reason, it is possible to prevent smoke from flowing from the elevator hall side to the hoistway side for a long time without impairing the appearance of the entrance / exit, and also to prevent the generation of abnormal noise and noise when opening and closing the door. Smooth opening and closing operations are possible.

  Hereinafter, preferred embodiments of a door device for an elevator entrance / exit according to the present invention will be described in detail with reference to the accompanying drawings. The door device for the elevator entrance / exit according to the present embodiment is a device for preventing the flow of smoke at the entrance / exit between the elevator hoistway and the elevator hall.

  FIG. 1 is a front view of an entrance / exit 12 to which a door device (elevator entrance / exit door device) 10 according to an embodiment of the present invention is applied as viewed from an elevator hall 14 side. 2 is a rear view of the entrance 12 shown in FIG. 1 (viewed from the elevator hoistway 26 side).

  The entrance / exit 12 is bordered by a three-way frame 18 and a sill 20 attached to the opening 16a of the building wall 16 and is opened and closed by a door (a landing door) 21 so that the user's car (elevator car) 24 can be opened and closed. Getting on and off. The door 21 opens and closes when a pair of panels (door panels) 22 and 22 abut or separate from each other. An elevator use button unit 25 is provided on the building wall 16 close to the entrance 12.

  The three-way frame 18 is formed in a gate shape by an upper frame portion 18a positioned above the entrance 12 and a pair of side frame portions (vertical frame portions) 18b, 18b extending downward from both ends thereof.

  As shown in FIGS. 2 and 3, a header case 28 is attached to the upper frame portion 18a from the hoistway 26 side where the elevator car 24 moves up and down by bolts 23. In the header case 28, a door rail 30 extending in the horizontal direction and a drive mechanism 31 arranged in parallel to the door rail 30 are accommodated, and these are fixed to the header case 28 by bolts 27.

  Two suspension devices 32 are connected to the door rail 30 so as to be movable in the opening / closing direction of the door 21 (directions of arrows X1 and X2 in FIG. 2). A drive mechanism 31 is connected to the suspension device 32 via bolts 29. Attached. The upper portions of the panels 22 are connected to the suspension devices 32 by bolts 33, and the panels 22 are suspended from the door rails 30 by the suspension devices 32. Such a suspension device 32 accommodates two pairs of suspension rollers 32 a and 32 a that are in rolling contact with the door rail 30.

  Accordingly, when the car 24 is landed in the elevator hall 14 and the drive mechanism 31 is driven under the control of a control device (not shown), the suspension devices 32 of the panels 22 are separated or approached (in FIG. 2). By moving in the directions of arrows X1 and X2, the pair of panels 22 and 22 suspended by these suspension devices 32 are opened and closed.

  The sill 20 is laid in the lower part of the three-way frame 18 so as to face the upper frame part 18a, and connects the lower ends of the pair of side frame parts 18b and 18b. A guide groove 34 extending in parallel with the door rail 30 is embedded in the sill 20 (see FIGS. 2 and 7).

  A guide shoe (door shoe) 36, which is attached to the lower portion of the panel 22 and guides the panel 22 in the opening and closing direction, is slidably inserted into the guide groove 34. The guide shoes 36 are fixed to the front end of the support plate 52 attached to the lower back surface (the surface on the hoistway 26 side) of the panel 22, and two pieces are provided on each panel 22 (FIGS. 2 and 2). 8).

  In the entrance 12 configured as described above, a predetermined gap G is provided between the door 21 and the three-way frame 18 and the sill 20 in order to smoothly open and close the door 21 (FIG. 3, (See FIGS. 7 and 11). Moreover, the door G 22a of the door 21 is provided with a gap G for absorbing the backlash and the like (see FIG. 11).

  Therefore, in the door apparatus 10 according to the present embodiment, a smoke shielding mechanism for closing each gap G and preventing (blocking) the smoke from the gap G is provided at a position corresponding to each gap G. ing. That is, the door device 10 has an upper smoke shielding mechanism 54a that closes the gap G between the upper part of the door 21 and the upper frame part 18a of the three-way frame 18, and a gap G between the lower part of the door 21 and the sill 20. A lower smoke shielding mechanism 56a for closing, a side smoke shielding mechanism (door bag smoke shielding mechanism) 58a for closing the gap G between the side portion (door bag side portion) of the door 21 and the side frame portion 18b of the three-side frame 18; , And a door stopper smoke shielding mechanism 60a that closes the gap G of the door stopper 22a of the door 21 is provided.

  3 is a partially omitted cross-sectional view of the upper smoke-shielding mechanism 54a taken along line III-III in FIG. 2 with the door 21 closed, and FIG. 4 is an upper view from the direction of arrow IV in FIG. It is explanatory drawing which shows typically the structure of the smoke shielding mechanism 54a. FIG. 5 is a partially omitted cross-sectional view of the upper smoke shielding mechanism 54a shown in FIG. 3 with the door 21 opened. FIG. 6 shows the upper smoke shielding mechanism 54a from the direction of the arrow VI in FIG. It is explanatory drawing which shows a structure typically. 4 to 6, some components such as the door rail 30 and the suspension device 32 are omitted for the sake of simplicity, and the same applies hereinafter.

  As shown in FIGS. 3 and 4, the upper smoke-shielding mechanism 54 a is a guide member (airtight material) provided along the longitudinal direction (the directions of arrows X1 and X2 in FIG. 2) of the upper frame portion 18 a of the three-way frame 18. A guide 64, a guide member (airtight material guide) 66 provided to face the guide member 64 at a predetermined angle along the longitudinal direction of the upper edge portion 22 b of the panel 22, and a link member ( Oscillating members) 68 and 70 and springs (elastic members) 72 and 74 are provided so as to be movable in the vertical direction, and extend parallel to the guide members 64 and 66 along the longitudinal direction of the upper edge portion 22b of the panel 22. And a smoke shielding member (airtight material) 76.

  The guide member 64 has a substantially L-shaped cross section, and is fixed to the upper frame portion 18a by a bolt 78 together with a bracket 73 fixed to the upper frame portion 18a by a bolt 71. Is slightly inclined inward.

  The guide member 66 is fixed to the panel 22 with bolts 75, and the lower end side thereof is slightly bent in a direction away from the panel 22. Accordingly, the portion where the guide members 64 and 66 face each other is formed as a substantially V-shaped groove (see FIG. 3).

  The smoke shielding member 76 is made of an elastic body such as rubber, and is substantially the same length as the upper edge portion 22b of the panel 22, and a pair of projecting portions 76a and 76a are provided on the front end side (lower end side). It protrudes.

  On the upper side of the guide member 66 in the panel 22, two fixing plates 82 and 84 having a substantially L shape (see FIG. 4) in front view are fixed by bolts 86 via brackets 80 fixed by bolts 77. Has been.

  The link member 68 is formed of a flat plate having a protruding piece 68a, and is rotatably connected to the fixed plate 82 by a spindle pin 88, and a mounting plate 92 is rotatably connected to the link member 68 by a swing pin 90. It is connected. A smoke shielding member 76 is fixed to the mounting plate 92. On the other hand, the link member 70 is formed of a substantially rectangular flat plate, and is rotatably connected to a fixed plate 84 by a support shaft 94, and a mounting plate 92 is rotatable to the link member 70 by a swing pin 96. It is connected to.

  Therefore, as shown in FIGS. 4 and 6, when the link member 68 is swung (turned) around the support pin 88 as a fulcrum (rotation shaft), the attachment plate 92 connected by the swing pin 90 is interposed. Thus, the link member 70 also swings (turns) about the support shaft pin 94 as a fulcrum. That is, the mounting plate 92 and the smoke shielding member 76 are configured to be movable in the vertical direction by the link members 68 and 70.

  The spring 72 is connected to the fixed plate 82 at the upper end side by two pins 98 and is connected to the link member 68 at the lower end side. On the other hand, the upper end side of the spring 74 is connected to the fixed plate 84 and the lower end side is connected to the link member 70 by two pins 100.

  Therefore, in the upper smoke shielding mechanism 54a, when the door 21 is opened, the swing pins 90, 96 side of the link members 68, 70 are supported by the pivot pins 88, 94 under the contraction action of the springs 72, 74. In this case, the smoke shielding member 76 is also lifted upward together with the link members 68 and 70, and the tip of the projecting portion 76a of the smoke shielding member 76 is separated from the guide members 64 and 66 by a distance H. (See FIG. 5).

  On the other hand, when the door 21 is to be closed, first, the tip ends of the protruding pieces 68a of the link members 68 provided on the left and right panels 22 come into contact with each other in the door holding portion 22a. Then, as shown in FIG. 4, when the protruding pieces 68a are pressed against each other at the point J, the swing pins 90 and 96 of the link members 68 are lowered with the support pins 88 and 94 as fulcrums, that is, the link members. 68 and 70 swing downward (turn), and the smoke shielding member 76 moves downward. As a result, as shown in FIG. 3, the tip of the protruding portion 76 a contacts the guide members 64 and 66 at the position A. At this time, the pair of protrusions 76a and 76a are inserted into substantially V-shaped grooves formed by the guide members 64 and 66, so that each protrusion 76a has a narrow width downward. Upon receiving a pressing force inward from the groove, a repulsive force (elastic force) in the outward direction against the pressing force is generated. For this reason, the protrusion part 76a and the guide members 64 and 66 adhere more reliably.

  As described above, in the upper smoke shielding mechanism 54a, the protrusion 76a provided on the distal end side of the smoke shielding member 76 is guided by the swinging (turning) action of the link members 68 and 70 when the door 21 is opened. When the door 21 is closed, the protrusion 76a comes into close contact with the guide members 64 and 66, and a gap G between the upper portion of the door 21 and the upper frame portion 18a of the three-way frame 18 is formed. Can be closed. Therefore, when the door 21 is closed, it is possible to suppress the flow of smoke from the gap G to the hoistway 26 side from the gap G, and to maintain the airtightness at the entrance 12.

  Further, during the opening / closing operation of the door 21 (when moving), the smoke shielding member 76 does not come into contact with the guide members 64, 66, and the door 21 can be smoothly opened / closed to prevent noise and noise. Can do. In addition, it is possible to effectively prevent the smoke shielding member 76 from coming into contact with the guide members 64 and 66 and being worn and deteriorated by the opening / closing operation of the door 21.

  In this case, even if the panel 22 is slightly tilted or the door 21 and the three-way frame 18 have some dimensional tolerance or dimensional error, the protrusion 76a of the smoke shielding member 76 and the guide members 64 and 66 Is easily retained by the repulsive force of the protrusion 76a, and the airtightness of the entrance 12 can be sufficiently secured.

  7 is a partially omitted cross-sectional view of the lower smoke shielding mechanism 56a along the line VII-VII in FIG. 2 in a state where the door 21 is closed, and FIG. 8 is a lower view from the direction of arrow VIII in FIG. It is explanatory drawing which shows typically the structure of the smoke shielding mechanism 56a. 9 is a partially omitted cross-sectional view of the lower smoke-shielding mechanism 56a shown in FIG. 7 with the door 21 opened, and FIG. 10 shows the lower smoke-shielding mechanism 56a from the direction of the arrow X in FIG. It is explanatory drawing which shows a structure typically.

  As shown in FIGS. 7 and 8, the lower smoke shielding mechanism 56 a is provided so as to be movable in the vertical direction by link members (swing members) 102, 104 and springs (elastic members) 106, 108. A smoke shielding member (airtight material) 110 extending in parallel with the sill 20 along the longitudinal direction of the edge 22c is provided.

  A bracket 112 having a substantially L-shaped cross section is attached to the rear surface (side surface of the hoistway) in the vicinity of the lower edge portion 22c of the panel 22 and is convex on both sides in a substantially rectangular shape in front view via the bracket 112. A fixing plate 114 on which 114 a and 114 b are formed is fixed by a bolt 116. As shown in FIG. 8, the support plate 52 to which the guide shoe 36 that guides the panel 22 is fixed is fixed to the fixing plate 114 via bolts 42.

  The link member 102 is a flat plate having a lower end side including the protruding piece 102a disposed in the guide groove 34 of the sill 20, and has substantially the same shape as the link member 68 constituting the upper smoke shielding mechanism 54a. Such a link member 102 is rotatably connected to the fixed plate 114 by a spindle pin 118, and a connecting plate 122 is rotatably connected to the link member 102 by a swing pin 120.

  As shown in FIG. 7, the connecting plate 122 has a shape in which two side plates 122b and 122c extend vertically upward from both ends of the bottom plate 122a, and the side plate 122c on the hoistway 26 side than the side plate 122b on the elevator hall 14 side. Is longer (higher). The link member 102 is connected to the side plate 122b by a swing pin 120. The smoke shielding member 110 is fixed to the side plate 122c of the connecting plate 122 by a bolt 126 via a mounting plate 124 having a substantially L-shaped cross section.

  On the other hand, the link member 104 is formed of a substantially rectangular flat plate and has substantially the same shape as the link member 70 constituting the upper smoke shielding mechanism 54a. The link member 104 is rotatably connected to the fixed plate 114 by the support pin 128, and the link plate 104 is rotatably connected to the side plate 122b of the connecting plate 122 by the swing pin 130. ing.

  For this reason, as shown in FIGS. 8 and 10, when the link member 102 is swung (rotated) around the support pin 118 as a fulcrum (rotation shaft), the connection plate 122 connected by the swing pin 120 is interposed. Thus, the link member 104 also swings (turns) with the support shaft pin 128 as a fulcrum. That is, the mounting plate 124 and the smoke shielding member 110 are configured to be movable in the vertical direction by the link members 102 and 104.

  The spring 106 is connected to the fixed plate 114 at the upper end side by two pins 132 and is connected to the link member 102 at the lower end side. On the other hand, the spring 108 is connected to the fixing plate 114 at the upper end side by two pins 134 and is connected to the link member 104 at the lower end side.

  The smoke shielding member 110 is made of an elastic body such as rubber and has a pair of protrusions 110a and 110a that are substantially the same length as the lower edge portion 22c of the panel 22 and are directed vertically downward toward the sill 20. The protrusion 110 a and the bracket 112 are arranged on the upper surface side, and have a protrusion 110 b oriented in the horizontal direction parallel to the sill 20.

  Therefore, in the lower smoke shielding mechanism 56a, when the door 21 is opened, the swing pins 120, 130 of the link members 102, 104 are supported by the pivot pins 118, 128 under the contraction action of the springs 106, 108. In this case, the smoke shielding member 110 is also lifted upward together with the link members 102 and 104, and the tip of the projecting portion 110a of the smoke shielding member 110 is separated from the sill 20 by a distance H, The protrusion 110b is also separated from the upper surface of the bracket 112 by a distance H (see FIG. 9).

  On the other hand, when the door 21 is to be closed, first, the leading ends of the protruding pieces 102a of the link members 102 provided on the left and right panels 22 come into contact with each other in the door holding portion 22a. Then, as shown in FIG. 8, when the projecting pieces 102a are pressed against each other at the point K, the swing pins 120 and 130 of the link members 102 are lowered with the pivot pins 118 and 128 as fulcrums, that is, the link members. 102 and 104 swing downward (turn), and the smoke shielding member 110 moves downward. As a result, as shown in FIG. 7, the tip of the protrusion 110 a contacts the upper surface of the sill 20, and the protrusion 110 b contacts the bracket 112.

  As described above, in the lower smoke shielding mechanism 56a, the smoke shielding member 110 is silled when the door 21 is opened by the swinging (turning) action of the link members 102 and 104, similarly to the upper smoke shielding mechanism 54a described above. When the door 21 is closed away from the bracket 20 and the bracket 112, the smoke shielding member 110 is in close contact with the sill 20 and the bracket 112, and the gap G between the lower portion of the door 21 and the sill 20 can be closed. . Therefore, when the door 21 is closed, it is possible to suppress the flow of smoke from the gap G to the hoistway 26 side from the gap G, and to maintain the airtightness at the entrance 12.

  Further, during the opening / closing operation (moving) of the door 21, the smoke shielding member 110 does not come into contact with the sill 20 or the bracket 112, and the door 21 can be smoothly opened / closed to prevent noise and noise. Can do. In addition, it is possible to effectively prevent the smoke shielding member 110 from coming into contact with the sill 20 or the bracket 112 and being deteriorated by the opening / closing operation of the door 21.

  FIG. 11 is a partially omitted cross-sectional view of the side smoke-preventing mechanism 58a and the door-holding smoke-preventing mechanism 60a along the line XI-XI in FIG. 2 with the door 21 closed. FIG. 12 is a partially omitted cross-sectional view showing an enlarged side smoke control mechanism 58a at XII in FIG. 11, and FIG. 13 shows a state in which the door 21 in the side smoke control mechanism 58a shown in FIG. FIG.

  As shown in FIGS. 11 and 12, the side smoke shielding mechanism 58 a is a rotating smoke shielding member along the longitudinal direction of the side frame 18 b of the three-sided frame 18 (the height direction orthogonal to the opening / closing direction of the door 21). (First smoke shielding member, airtight material) 140 and door side smoke shielding member (second smoke shielding member, fixed along the longitudinal direction of the side edge portion 22d formed by bending at the door pocket side end of the panel 22 Airtight material) 142. Further, the side frame portion 18b is provided with a frame side smoke shielding member (third smoke shielding member, airtight material) 148 via a presser plate 146 having a substantially L-shaped cross section fixed by a bolt 144.

  The rotating smoke-insulating member 140 is made of a flat plate made of an elastic body such as rubber, has a length substantially the same as the height of the panel 22, and can be rotated by a rotating shaft 150 along the longitudinal direction of the side frame portion 18b. The fixing plate 152 is fixed by a bolt 156 together with a holding plate 154 having a substantially L-shaped cross section.

  The mounting plate 152 and the rotating shaft 150 are, for example, hinges that are fixed at three positions of the upper stage, the middle stage, and the lower stage in the longitudinal direction (height direction) of the side frame portion 18b. Along with the member 140, the side frame 18 b extends in the longitudinal direction and is fixed to the mounting plate 152. For this reason, when the mounting plate 152 rotates about the rotation shaft 150, the rotating smoke shielding member 140 and the pressing plate 154 also rotate simultaneously (see FIG. 13).

  The frame-side smoke-shielding member 148 is fixed along the opening / closing direction of the door 21 (the directions of arrows X1 and X2 in FIG. 2) and is substantially the same length as the height of the panel 22, and a pair of The protrusions 148a and 148b extend toward the door pocket. The protruding portion 148a on the panel 22 side is formed slightly longer than the protruding portion 148b. When the door 21 is closed and the mounting plate 152 rotates between the projecting portions 148a and 148b, the front end side of the holding plate 154 is inserted. At this time, the front ends of the projecting portions 148a and 148b are rotated and blocked. The smoke member 140 and the presser plate 154 are configured to come into contact with each other.

  The door-side smoke shielding member 142 is fixed to the side edge portion 22d together with the bracket 158 having a substantially L-shaped cross section by bolts 143, and has the same length as the height of the panel 22. An adjustment plate 160 having a substantially L-shaped cross section and one surface abutting against the door-side smoke shielding member 142 is fixed to the surface of the bracket 158 parallel to the opening / closing direction of the door 21 by bolts 162. A hole (not shown) through which the bolt 162 of the adjustment plate 160 is inserted is formed in, for example, a long hole, and the position of the adjustment plate 160 can be adjusted in a direction parallel to the opening / closing direction of the door 21. That is, by adjusting the position of the adjustment plate 160, the position of the door-side smoke shielding member 142 can be finely adjusted.

  Therefore, in the side smoke shielding mechanism 58a, from the state where the door 21 is opened and the door side smoke shielding member 142 and the rotating smoke shielding member 140 are separated (see FIG. 13), the door 21 is moved in the arrow X2 direction. When closed, the door-side smoke shielding member 142 and the rotating smoke shielding member 140 come into contact with each other, and the mounting plate 152, that is, the rotating smoke shielding member 140 rotates. For this reason, the door side smoke shielding member 142 and the rotating smoke shielding member 140, the rotating smoke shielding member 140 and the protruding portion 148a of the frame side smoke shielding member 148, and the mounting plate 152 and the protruding portion of the frame side smoke shielding member 148. 148b adheres securely (see FIG. 12).

  As described above, in the side smoke shielding mechanism 58a, the rotating smoke shielding member 140 is fixed to the mounting plate 152 that is rotated by the rotating shaft 150, so that when the door 21 is closed, the door side smoke shielding member 142 is The rotating smoke shielding member 140 is rotated by being pushed, and there is a space between the door side smoke shielding member 142 and the rotation smoke shielding member 140 and between the rotation smoke shielding member 140 and the frame side smoke shielding member 148. The gap G between the side part of the door 21 and the side frame part 18b of the three-sided frame 18 can be closed. Therefore, when the door 21 is closed, it is possible to suppress the flow of smoke from the gap G to the hoistway 26 side from the gap G, and to maintain the airtightness at the entrance 12.

  In this case, the rotation of the rotating smoke-insulating member 140 reduces friction when the rotating smoke-insulating member 140 comes into contact with other smoke-insulating members. The wear and deterioration of the member can be effectively suppressed.

  Further, in the side smoke shielding mechanism 58a, even if a gap is formed based on manufacturing accuracy within the range of dimensional tolerances such as warpage and bending of each smoke shielding member and the side frame portion 18b. The gap G can be reliably closed. That is, as shown in FIG. 14, even when the door 21 is in a closed state, when the door 21 is not completely closed locally due to its manufacturing accuracy, the door-side smoke shielding member 142 is rotated. As for the gap M generated between the smoke shielding member 140 and the gap N generated between the frame side smoke shielding member 148 and the rotating smoke shielding member 140, the mounting plate 152 is pushed by the closing force of the panel 22. The rotating smoke shielding member 140 is in close contact with the door side smoke shielding member 142, and the mounting plate 152 is in close contact with the frame side smoke shielding member 148. For this reason, the gap G between the side portion of the door 21 and the side frame portion 18b of the three-way frame 18 can be sufficiently closed, and the airtightness at the entrance 12 can be more reliably maintained.

  FIG. 15 is a partially omitted cross-sectional view showing an enlarged portion of the door stopper smoke shielding mechanism 60a of the XV portion in FIG. 11, and FIG. 16 shows that the door 21 in the door stopper smoke shielding mechanism 60a shown in FIG. It is a partially omitted sectional view in a state.

  As shown in FIGS. 11 and 15, the door stopper smoke proofing mechanism 60 a is attached to a bent portion 22 e that bends from the door stopper 22 a of the panel 22 toward the door pocket. Such a door stop part smoke shielding mechanism 60 a includes a smoke shielding member 170 fixed along the longitudinal direction of the bent part 22 e of one panel 22 (the height direction of the door 21), and the folding of the other panel 22. And a curved plate 172 fixed so as to face the smoke shielding member 170 along the longitudinal direction of the curved portion 22e. The smoke shielding member 170 is attached to the bent portion 22e by a bolt 174 together with a holding plate 173 having a substantially L-shaped cross section, and the curved plate 172 is attached to the bent portion 22e by a bolt 176.

  The smoke shielding member 170 is made of an elastic body such as rubber, has the same length as the height of the panel 22, and the projecting portions 170 a and 170 b are provided toward the curved plate 172 side. The protruding portion 170b on the hoistway 26 side protrudes from the protruding portion 170a.

  The curved plate 172 is formed with a curved curved portion 172a on the other panel 22 side where the smoke shielding member 170 is provided, and the curved portion 172a substantially coincides with the center of the smoke shielding member 170.

  Therefore, when the door 21 is closed as shown in FIG. 15 from the state in which the door 21 is opened as shown in FIG. 16, the protrusion 170 a of the smoke shielding member 170, 170b contacts the curved portion 172a, and the projecting portion 170b deforms (bends) along the inclination of the curved plate 172. For this reason, the smoke shielding member 170 adheres to the curved plate 172 reliably.

  As described above, in the door-holding portion smoke shielding mechanism 60a, when the door 21 is closed, the smoke shielding member 170 is deformed and adhered along the curved shape of the curved plate 172, so that the gap G in the door-holding portion 22a. Can be blocked. Therefore, when the door 21 is closed, it is possible to suppress the flow of smoke from the gap G to the hoistway 26 side from the gap G, and to maintain the airtightness at the entrance 12.

  In this case, since the protrusion 170b of the smoke shielding member 170 is flexibly bent along the inclination of the curved plate 172, friction when the smoke shielding member 170 and the curved plate 172 are in contact is reduced, and noise, noise, Furthermore, wear and deterioration of the smoke shielding member 170 can be effectively suppressed.

  As described above, according to the door device 10 according to the present embodiment, the upper smoke shielding mechanism 54a that closes the gap G between the upper portion of the door 21 and the upper frame portion 18a of the three-way frame 18, the lower portion of the door 21, and the sill. A lower smoke shielding mechanism 56a that closes the gap G between the side wall 20 and a side smoke shielding mechanism 58a that closes the gap G between the side part of the door 21 and the side frame part 18b of the three-sided frame 18; By providing the door stop part smoke shielding mechanism 60a that closes the gap G at the contact part 22a, each gap G can be easily and reliably closed. In this case, even when the opening / closing operation of the door 21 is frequently repeated, it is possible to effectively suppress wear and deterioration of the smoke shielding members constituting each smoke shielding mechanism. For this reason, it is possible to prevent smoke from flowing from the elevator hall 14 side to the hoistway 26 side for a long period of time without impairing the appearance of the entrance 12 and, further, noise and noise when the door 21 is opened and closed. Occurrence can also be prevented.

  By the way, each smoke shielding mechanism which comprises the door apparatus 10 which concerns on this embodiment can also be changed into things other than the structure shown in FIGS. Then, next, the modification of each smoke shielding mechanism of the door apparatus 10 which concerns on this embodiment is demonstrated with reference to FIGS. 17 to FIG. 35, the same reference numerals as those shown in FIG. 1 to FIG. 16 indicate the same or similar configurations, and thus the same or similar functions and effects are provided. The same description is omitted below.

  First, with reference to FIGS. 17-22, the upper smoke shielding mechanism 54b which is a modification of the upper smoke shielding mechanism 54a is demonstrated.

  As shown in FIGS. 17 and 18, the upper smoke shielding mechanism 54 b is a guide member (airtight material) provided along the longitudinal direction (the directions of the arrows X1 and X2 in FIG. 2) of the upper frame portion 18 a of the three-way frame 18. A guide (180), a guide member (airtight material guide) 182 provided along the longitudinal direction of the upper edge portion 22b of the panel 22, a link member (swing member) 184, and a roller (guide roller) 186 in the vertical direction. A smoke shielding member (airtight member) 188 that is movably provided and extends in parallel with the guide members 180 and 182 along the longitudinal direction of the upper edge portion 22b of the panel 22, and the longitudinal direction of the upper edge portion 22b of the panel 22 And a smoke shielding member (airtight material) 189 provided along the line. The roller 186 is configured to be movable on a roller guide (guide rail) 190 provided in parallel to face the guide member 180.

  The guide member 180 has a substantially L-shaped cross section, and is fixed to the upper frame portion 18a by a bolt 196 together with a bracket 194 fixed to the upper frame portion 18a by a bolt 192. Is slightly inclined outward. A smoke shielding member 199 is provided on the upper frame portion 18a facing the upright portion 180a for adjusting the guide member 180 having the upright portion 180a.

  The guide member 182 is fixed to the panel 22 with bolts 198, and the upper end side thereof is slightly bent in a direction away from the panel 22.

  The roller guide 190 is fixed to the upper frame portion 18a together with the bracket 194 by a bolt 192, and a bent portion 190a which is slightly inclined so as to form a substantially V-shaped groove portion together with the upright portion 180a at the distal end side thereof. Is formed. On the upper surface 190b of the roller guide 190 on which the roller 186 moves, a groove portion 190c into which the roller 186 enters and sinks with the door 21 closed is formed.

  The smoke shielding member 188 is made of an elastic body such as rubber, and has substantially the same length as the upper edge portion 22b of the panel 22. A pair of projecting portions 188a and 188b are vertically provided on the tip side (lower end side). It extends downward. The protrusion 188a on the elevator hall 14 side is formed sufficiently longer than the protrusion 188b.

  The link member 184 is a semicircular flat plate on both the left and right sides (see FIG. 18), and is rotatably connected to the panel 22 above the guide member 182 by a spindle pin 200. The mounting plate 204 having a substantially L-shaped cross section is rotatably connected by the swing pin 202. A smoke shielding member 189 is fixed between the link member 184 and the panel 22 by bonding or the like.

  A smoke shielding member 188 and a roller support plate 206 are fixed to the mounting plate 204 by bolts 208. A roller 186 is rotatably attached to the front end side (lower end side) of the roller support plate 206 by a rotation shaft 210.

  For this reason, as shown in FIGS. 18 and 21, when the link member 184 is swung (turned) around the support pin 200 as a fulcrum (rotation shaft), it is shielded together with the mounting plate 204 connected by the swing pin 202. The smoke member 188 moves up and down.

  Therefore, in the upper smoke shielding mechanism 54b, the roller 186 is positioned on the upper surface 190b of the roller guide 190 when the door 21 is opened (see FIGS. 20 to 22). That is, the roller 186 is separated from the groove 190c. Therefore, the roller support plate 206 is pushed up by the roller 186, and the swing pin 202 side of the link member 184 is pushed up with the support pin 200 as a fulcrum through the roller support plate 206 (see FIG. 21). The smoke shielding member 188 is also pushed upward together with the link member 184 and the mounting plate 204. That is, the tip of the protrusion 188a of the smoke shielding member 188 is separated from the guide member 180 and the roller guide 190 by a distance H, and the tip of the protrusion 188b is separated from the guide member 182 by a distance H (see FIG. 20). .

  On the other hand, when the door 21 is closed, the roller 186 enters the groove portion 190c of the roller guide 190 and sinks (see FIGS. 17 to 19). Then, when the roller support plate 206 is pulled down by the roller 186, the swing pin 202 side of the link member 184 is pulled down with the support pin 200 as a fulcrum via the roller support plate 206 (see FIG. 18). The smoke shielding member 188 is also pulled down together with the link member 184 and the mounting plate 204. That is, the tip of the protrusion 188a of the smoke shielding member 188 is in close contact with the guide member 180 and the roller guide 190 at the position B1, and the tip of the protrusion 188b is in close contact with the guide member 182 at the position B2 (see FIG. 17). The gap G between the upper portion of the door 21 and the upper frame portion 18a of the three-way frame 18 is closed.

  Next, a lower smoke shielding mechanism 56b, which is a modification of the lower smoke shielding mechanism 56a, will be described with reference to FIGS.

  As shown in FIGS. 23 and 24, the lower smoke shielding mechanism 56b is a guide member (airtight material guide) provided along the longitudinal direction of the lower edge portion 22c of the panel 22 (the directions of arrows X1 and X2 in FIG. 2). ) 218, a link member (swinging member) 220, and a roller (guide roller) 222, which are movable in the vertical direction, and extend in parallel with the sill 20a along the longitudinal direction of the lower edge portion 22c of the panel 22. A smoke shielding member 224. The threshold 20a is different from the threshold 20 in that a roller groove 226 is formed on the upper surface side. The roller groove 226 is a shallow groove formed along the longitudinal direction of the sill 20a on the upper surface on the hoistway 26 side of the guide groove 34 of the sill 20a, and functions to guide the roller 222.

  The guide member 218 is fixed to the panel 22, and a bent portion 218 a that is slightly inclined in a direction away from the panel 22 is formed on the lower end side thereof.

  A fixing plate 230 having a substantially L-shaped cross section is fixed to the bracket 112 attached to the back surface of the panel 22 by bolts 228.

  The smoke shielding member 224 is made of an elastic body such as rubber, and has substantially the same length as the lower edge portion 22c of the panel 22. A projecting portion 224a is formed on the lower end side of the smoke shielding member 224, and the guide member 218 on the upper surface 224b. On the side, a standing portion 224c that is slightly inclined outward is formed. The inclination angle of the upright portion 224c corresponds to the inclination angle of the bent portion 218a of the guide member 218.

  The link member 220 is formed of a rectangular prism, and is rotatably connected to the fixed plate 230 by a spindle pin 232. An attachment plate 236 having a substantially L-shaped cross section and a roller support plate 238 having a slightly narrower tip side (lower end side) are rotatably connected to the link member 220 with a spacer 240 interposed therebetween by a swing pin 234. Has been.

  A smoke shielding member 224 is fixed to the bent portion 236a on the front end side (lower end side) of the mounting plate 236. A roller 222 is rotatably attached to the front end side (lower end side) of the roller support plate 238 by a rotation shaft 242.

  Therefore, as shown in FIGS. 24 and 26, when the link member 220 is swung (rotated) with the support shaft pin 232 as a fulcrum (rotation shaft), it is shielded together with the mounting plate 236 connected by the swing pin 234. The smoke member 224 moves up and down.

  Therefore, in the lower smoke shielding mechanism 56b, the roller 222 is positioned on the roller groove 226 when the door 21 is opened (see FIGS. 25 and 26). For this reason, the roller support plate 238 is pushed up by the roller 222, and the swing pin 234 side of the link member 220 is pushed up with the support pin 232 as a fulcrum through the roller support plate 238 (see FIG. 26). The smoke shielding member 224 is also pushed upward together with the link member 220 and the mounting plate 236. That is, the lower surface of the smoke shielding member 224 is separated from the upper surface of the sill 20a by a distance H, and the standing portion 224c of the smoke shielding member 224 is somewhat separated from the bent portion 218a of the guide member 218 (see FIG. 25).

  On the other hand, when the door 21 is closed, the roller 222 enters the groove 226a of the roller groove 226 and sinks. Then, when the roller support plate 238 is pulled down by the roller 222, the swing pin 234 side of the link member 220 is pulled down by using the support pin 232 as a fulcrum through the roller support plate 238 (see FIG. 24). The smoke shielding member 224 is also pulled down together with the link member 220 and the mounting plate 236. That is, in a state where the protruding portion 224 a of the smoke shielding member 224 enters the guide groove 34, the smoke shielding member 224 is in close contact with the sill 20 a, and the standing portion 224 c of the smoke shielding member 224 is bent of the guide member 218. The gap G between the lower portion of the door 21 and the sill 20a is closed by being in close contact with the portion 218a (see FIG. 23).

  In such a lower smoke shielding mechanism 56b, as shown in FIG. 27, the support plate 52 that supports the guide shoe 36 is fixed to the fixed plate 230 via bolts 42. As shown in FIG. 28, when the door 21 is closed and the lower surface of the smoke shielding member 224 is in close contact with the sill 20a, the lower surface of the protrusion 224a of the smoke shielding member 224 is in close contact with the upper surface of the guide shoe 36. To do. For this reason, the gap G between the lower portion of the door 21 and the sill 20a can be closed more reliably, and the airtightness at the entrance 12 can be further enhanced.

  Next, with reference to FIG. 29 to FIG. 31, a side smoke shielding mechanism 58b, which is a modification of the side smoke shielding mechanism 58a, will be described.

  As shown in FIG. 29, the side portion smoke shielding mechanism 58b is configured in substantially the same manner as the side portion smoke shielding mechanism 58a, and the holding plate 154 is integrally or directly fixed to the mounting plate 152. The rotating smoke shielding member 140 is fixed by adhesion or the like so as to sandwich it. A panel reinforcing member 22f having a substantially L-shaped cross section is fixed to the end portion of the panel 22 on the door pocket side by a bolt 250 together with a mounting plate 252 having a substantially L-shaped cross section. The door-side smoke shielding member 142 is fixed by adhesion or the like so as to sandwich the mounting plate 252. In this case, the adjustment plate 160 for adjusting the position of the door-side smoke shielding member 142 is omitted, and the structure is further simplified.

  Therefore, in the side smoke shielding mechanism 58b, when the door 21 is closed from the opened state (see FIG. 30), the door side smoke shielding member 142 is similar to the case of the side smoke shielding mechanism 58a. The side part of the door 21 (door bag side part) and the side frame part of the three-sided frame 18 are brought into close contact with the rotary smoke shielding member 140 and the frame side smoke shielding member 148 and the rotary smoke shielding member 140. The gap G between 18b can be closed (see FIG. 29).

  Also, in the side smoke shielding mechanism 58b, as in the case of the side smoke shielding mechanism 58a, as shown in FIG. 31, even when the door 21 is closed, the door 21 is locally localized in terms of manufacturing accuracy. Is not completely closed, the gap M generated between the door-side smoke shielding member 142 and the rotating smoke-insulating member 140 or the frame-side smoke shielding member 148 and the rotating smoke-insulating member 140 is generated. The gap N can also be closed.

  Next, with reference to FIG.32 and FIG.33, the side part smoke shielding mechanism 58c which is the other modification of the side part smoke shielding mechanism 58a is demonstrated.

  As shown in FIG. 32, the side smoke shielding mechanism 58 c is formed on the door-bag side end of the side frame 18 b of the three-sided frame 18, and the bent portion 18 c inclined in the direction away from the door 21 and the panel 22. A smoke shielding member 264 fixed to the side edge portion 22d by a bolt 262 together with a mounting plate 260 having a substantially L-shaped cross section, and a bolt 266 together with a pressing plate 268 on a surface orthogonal to the side edge portion 22d of the mounting plate 260. And a smoke shielding member 270.

  The smoke shielding member 270 is made of an elastic body such as rubber, and has two projections 270a and 270b that are substantially the same as the height of the panel 22 and face the door stop 22a. The protruding portion 270a on the panel 22 side is formed longer than the protruding portion 270b.

  Therefore, in the side part smoke shielding mechanism 58c, the door 21 is closed in the arrow X2 direction from the state where the door 21 is opened and the smoke shielding member 270 is separated from the bent part 18c of the three-sided frame 18 (see FIG. 33). First, the projecting portion 270a of the smoke shielding member 270 comes into contact with the bent portion 18c and comes into close contact with the bent portion 18c while being deformed along the inclination of the bent portion 18c, and the tip end portion of the projecting portion 270b is also in the bent portion 18c. In close contact. For this reason, the clearance gap G between the side part (door pocket side part) of the door 21 and the side frame part 18b of the three-way frame 18 can be closed (refer FIG. 32).

  Next, with reference to FIG.34 and FIG.35, the door stopper part smoke shielding mechanism 60b which is a modification of the door stopper part smoke shielding mechanism 60a is demonstrated.

  As shown in FIG. 34, the door stopper part smoke shielding mechanism 60 b includes a smoke shielding member (airtight material) 280 attached to the bent part 22 e of one panel 22 and a door pocket from the door stopper part 22 a of the other panel 22. The bent portion 22g is bent with a slight inclination on the side.

  The smoke shielding member 280 is made of an elastic body such as rubber, has the same length as the height of the panel 22, and is attached to the bent portion 22e by a bolt 174 together with a holding plate 173 having a substantially L-shaped cross section. And two protrusions 280a and 280b facing in the direction of the door holding portion 22a. The protruding portion 280a on the pressing plate 173 side is formed longer than the protruding portion 280b.

  Accordingly, in the door stop smoke shielding mechanism 60b, the door 21 is opened from the state where the door 21 is opened and the smoke shielding member 280 is separated from the bent portion 22g of the other panel 22 (see FIG. 35). When closed in the direction, first, the projecting portion 280a of the smoke shielding member 280 comes into contact with the bent portion 22g, closely contacts the deformed portion 22g along the inclination of the bent portion 22g, and the tip end portion of the projecting portion 280b also bends. It adheres to the part 22g. For this reason, the gap G at the door holding portion 22a can be closed (see FIG. 34).

  Note that the present invention is not limited to the above-described embodiment and its modifications, and it is naturally possible to adopt various configurations without departing from the gist of the present invention.

  For example, the door device 10 includes upper smoke shielding mechanisms 54a and 54b, lower smoke shielding mechanisms 56a and 56b, side smoke shielding mechanisms 58a to 58c, and door toe smoke shielding mechanisms 60a and 60b in order to close the gaps G. Although the configuration has been described as an example, depending on the structure of the elevator or the building, only the upper smoke shielding mechanism 54a is installed, or only the lower smoke shielding mechanism 56a is installed. It can also be used.

  Furthermore, when the door 21 is a single-opening type composed of, for example, one or two or more panels 22, the door-holding portion smoke shielding mechanisms 60a and 60b are connected to the door 21 and the side frame portion 18b of the three-way frame 18. You may install between.

It is the front view which looked at the entrance / exit to which the door device concerning one embodiment of the present invention was applied from the elevator hall side. It is a rear view of the entrance / exit shown in FIG. FIG. 3 is a partially omitted cross-sectional view of an upper smoke shielding mechanism taken along line III-III in FIG. 2. It is explanatory drawing which shows typically the structure of the upper smoke-shielding mechanism from the IV arrow direction in FIG. FIG. 4 is a partially omitted cross-sectional view of the upper smoke shielding mechanism shown in FIG. 3 with the door opened. It is explanatory drawing which shows typically the structure of the upper smoke-shielding mechanism from the VI arrow direction in FIG. FIG. 5 is a partially omitted cross-sectional view of the lower smoke shielding mechanism taken along line VII-VII in FIG. 2. It is explanatory drawing which shows typically the structure of the lower smoke-shielding mechanism from the VIII arrow direction in FIG. FIG. 8 is a partially omitted cross-sectional view of the lower smoke shielding mechanism shown in FIG. 7 with the door opened. It is explanatory drawing which shows typically the structure of the lower smoke-shielding mechanism from the X arrow direction in FIG. FIG. 3 is a partially omitted cross-sectional view of a side smoke shielding mechanism and a door stop smoke shielding mechanism taken along line XI-XI in FIG. 2. FIG. 12 is a partially omitted cross-sectional view in which a side smoke shielding mechanism of a portion XII in FIG. 11 is enlarged. FIG. 13 is a partially omitted cross-sectional view of the side smoke shielding mechanism shown in FIG. 12 with the door opened. FIG. 13 is a partially omitted cross-sectional view in a state where the door in the side smoke shielding mechanism shown in FIG. 12 is not completely closed. FIG. 12 is a partially omitted cross-sectional view in which the door stop part smoke shielding mechanism of the XV part in FIG. 11 is enlarged. FIG. 16 is a partially omitted cross-sectional view in a state in which a door is opened in the door stopper smoke shielding mechanism shown in FIG. 15. FIG. 4 is a partially omitted cross-sectional view showing a modification of the upper smoke shielding mechanism shown in FIG. 3. It is explanatory drawing which shows typically the structure of the upper smoke-shielding mechanism from the XVIII arrow direction in FIG. It is explanatory drawing which shows typically the positional relationship of the roller and groove part from the XIX arrow direction in FIG. FIG. 18 is a partially omitted cross-sectional view of the upper smoke shielding mechanism shown in FIG. 17 with the door opened. It is explanatory drawing which shows typically the structure of the upper smoke-shielding mechanism from the XXI arrow direction in FIG. It is explanatory drawing which shows typically the positional relationship of the roller and groove part from the XXII arrow direction in FIG. FIG. 8 is a partially omitted cross-sectional view showing a modified example of the lower smoke shielding mechanism shown in FIG. 7. It is explanatory drawing which shows typically the structure of the lower smoke shielding mechanism from the XXIV arrow direction in FIG. FIG. 24 is a partially omitted cross-sectional view of the lower smoke shielding mechanism shown in FIG. 23 with the door opened. It is explanatory drawing which shows typically the structure of the lower smoke shielding mechanism from the XXVI arrow direction in FIG. FIG. 24 is a partially omitted cross-sectional view illustrating a relationship between a lower smoke shielding mechanism and a guide shoe illustrated in FIG. 23. It is explanatory drawing which shows typically the structure of the lower smoke-shielding mechanism from the XXVIII arrow direction in FIG. FIG. 13 is a partially omitted cross-sectional view showing a modification of the side smoke shielding mechanism shown in FIG. 12. FIG. 30 is a partially omitted cross-sectional view of the side smoke shielding mechanism shown in FIG. 29 with the door opened. FIG. 30 is a partially omitted cross-sectional view in a state where the door in the side smoke shielding mechanism shown in FIG. 29 is not completely closed. FIG. 13 is a partially omitted cross-sectional view showing another modification of the side smoke shielding mechanism shown in FIG. 12. FIG. 33 is a partially omitted cross-sectional view of the side smoke shielding mechanism shown in FIG. 32 with the door opened. FIG. 16 is a partially omitted cross-sectional view illustrating a modified example of the door stop portion smoke shielding mechanism illustrated in FIG. 15. FIG. 35 is a partially omitted cross-sectional view in a state where a door is opened in the door stop portion smoke shielding mechanism shown in FIG. 34.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Door apparatus 12 ... Entrance / exit 14 ... Elevator hall 18 ... Three-way frame 18a ... Upper frame part 18b ... Side frame part 18c, 22e, 22g, 218a, 236a ... Bending part 20, 20a ... Sill 21 ... Door 22 ... Panel 22a ... Door holding portion 22b ... Upper edge portion 22c ... Lower edge portion 22d ... Side edge portion 26 ... Hoistway 54a, 54b ... Upper smoke shielding mechanism 56a, 56b ... Lower smoke shielding mechanisms 58a-58c ... Side smoke shielding mechanism 60a , 60b ... Smoke prevention mechanism 64, 66, 180, 182, 218 ... Guide members 68, 70, 102, 104, 184, 220 ... Link members 76, 110, 170, 188, 189, 199, 224, 264 270, 280 ... smoke shielding members 88, 94, 118, 128, 200, 232 ... spindle pins 90, 96, 120, 130, 202, 234 ... swing pins 140 ... rotation shielding Members 142 ... door side Saegikemuri member 148 ... frame-side Saegikemuri member 172 ... curved plate 172a ... curved portion 186,222 ... roller 190c, 226a ... groove

Claims (9)

A three-way frame provided at the entrance between the elevator hoistway and the elevator hall;
A threshold provided at the bottom of the three-way frame;
An elevator doorway door device comprising a door disposed on the upper side of the sill and facing the hoistway side of the three-way frame,
An upper smoke shielding mechanism for closing a gap between the door and the upper frame of the three-way frame;
The upper smoke shielding mechanism includes a guide member provided along the longitudinal direction of the upper frame portion of the three-way frame;
It is provided along the longitudinal direction of the upper edge of the door, and a link member is connected, and when the link member rotates, it is configured to move in the vertical direction so as to be closely attached to or separated from the guide member. A smoke shielding member,
The guide member has an inclined portion inclined with respect to a moving direction of the smoke shielding member below the smoke shielding member, and the inclined portion is inclined in a direction in which a lower end portion approaches the smoke shielding member. And
The link member is rotated according to the open / closed state of the door, so that when the door is closed, the smoke shielding member moves downward to come into close contact with the inclined portion of the guide member , and the door When the door is opened, it moves upward and the smoke shielding member is separated from the inclined portion . The elevator doorway door device according to claim 1,
The door is a double opening type composed of a pair of panels, and each panel is provided with the guide member and the smoke shielding member,
When the door is closed, the link members of both panels come into contact with each other and rotate to cause the smoke shielding member to be in close contact with the guide member. A three-way frame provided at the entrance between the elevator hoistway and the elevator hall;
A threshold provided at the bottom of the three-way frame;
An elevator doorway door device comprising a door disposed on the upper side of the sill and facing the hoistway side of the three-way frame,
An upper smoke shielding mechanism for closing a gap between the door and the upper frame of the three-way frame;
The upper smoke shielding mechanism includes a guide member provided along the longitudinal direction of the upper frame portion of the three-way frame;
A guide rail provided along the longitudinal direction of the upper frame portion of the three-way frame;
Provided along the longitudinal direction of the upper edge of the front Kitobira, and Saegikemuri member supported via a guide roller moving on the guide rail,
A groove provided in the guide rail and into which the guide roller enters in a state where the door is closed;
The smoke-shielding member is formed so as to be movable in the vertical direction in response to entering or leaving the groove of the guide roller,
The guide member has an inclined portion inclined with respect to a moving direction of the smoke shielding member below the smoke shielding member, and the inclined portion is inclined in a direction in which a lower end portion approaches the smoke shielding member. And
When the door is closed, the guide roller enters the groove, so that the smoke shielding member is pulled down via the guide roller and closely contacts the inclined portion of the guide member,
When the door is opened, the guide roller is separated from the groove and positioned on the guide rail, so that the smoke shielding member is pushed up through the guide roller and the inclined portion of the guide member An elevator doorway door device characterized in that the door device is separated from the doorway. A three-way frame provided at the entrance between the elevator hoistway and the elevator hall;
A threshold provided at the bottom of the three-way frame;
An elevator doorway door device comprising a door disposed on the upper side of the sill and facing the hoistway side of the three-way frame,
A lower smoke shielding mechanism that closes a gap between the door and the sill,
The lower smoke shielding mechanism is provided along the longitudinal direction of the lower edge portion of the door, and a link member is connected, and the link member rotates to move up and down to the sill. A smoke shielding member configured to be in close contact with or away from , and
A bracket attached to the lower edge of the door;
Have
The smoke shielding member has a first protrusion that extends downward, and a second protrusion that is provided at an upper portion of the first protrusion and extends in a horizontal direction parallel to the sill,
When the link member rotates according to the open / closed state of the door, when the door is closed, the first projecting portion comes into close contact with the sill and the second projecting portion is an upper surface of the bracket. in close contact with the elevator entrance door device, wherein the second protrusion with the first projecting portion is separated from the sill is spaced apart from the upper surface of the bracket when the door is opened. In the door device of the elevator boarding gate of Claim 4,
The door is a double door type composed of a pair of panels, and each panel is provided with the smoke shielding member,
When the door is closed, the link members of both panels come into contact with each other and rotate to cause the smoke shielding member to be in close contact with the sill. A three-way frame provided at the entrance between the elevator hoistway and the elevator hall;
A threshold provided at the bottom of the three-way frame;
An elevator doorway door device comprising a door disposed on the upper side of the sill and facing the hoistway side of the three-way frame,
A lower smoke shielding mechanism that closes a gap between the door and the sill,
The lower smoke shielding mechanism is a guide member provided along the longitudinal direction of the lower edge of the door;
A smoke-shielding member provided along the longitudinal direction of the lower edge of the door and supported via a guide roller that moves on the sill;
A groove portion provided in the threshold and into which the guide roller enters in a state where the door is closed;
The lower end portion of the guide member has a bent portion inclined in a direction away from the lower edge portion of the door,
The smoke shielding member has an inclined portion facing the bent portion and inclined toward the guide member side at an inclination angle corresponding to the bent portion, and the guide roller enters or leaves the groove portion. According to the vertical movement,
When the door is closed, the guide roller enters the groove portion, so that the smoke shielding member is pulled down through the guide roller and closely contacts the sill, and the inclined portion is the guide member. In close contact with the bent portion of
When the door is opened, the guide roller is separated from the groove and positioned on the sill, so that the smoke shielding member is pushed up through the guide roller and separated from the sill , The door device for an elevator entrance / exit, wherein the inclined portion is separated from the bent portion of the guide member . A three-way frame provided at the entrance between the elevator hoistway and the elevator hall;
A threshold provided at the bottom of the three-way frame;
An elevator doorway door device comprising a door disposed on the upper side of the sill and facing the hoistway side of the three-way frame,
A side smoke shielding mechanism for closing a gap between the door and the side frame of the three-way frame;
The side smoke shielding mechanism includes a first smoke shielding member provided along the longitudinal direction of the side frame of the three-side frame,
A second smoke shielding member provided along the longitudinal direction of the side edge of the door;
The first smoke shielding member is a flat plate, and is provided so as to be rotatable through a rotation axis along the longitudinal direction of the side frame portion of the three-way frame,
The second smoke shielding member is fixed to the side edge so as to be orthogonal to the opening and closing direction of the door,
When the door is closed, the first smoke shielding member and the second smoke shielding member are in close contact with each other by the first smoke shielding member being pushed and rotated by the second smoke shielding member. Elevator doorway door device. A three-way frame provided at the entrance between the elevator hoistway and the elevator hall;
A threshold provided at the bottom of the three-way frame;
An elevator doorway door device comprising a door disposed on the upper side of the sill and facing the hoistway side of the three-way frame,
A side smoke shielding mechanism for closing a gap between the door and the side frame of the three-way frame;
The side smoke shielding mechanism is provided along the longitudinal direction of the side frame portion of the three-sided frame, and a bent portion that is inclined in a direction away from the door;
A smoke shielding member provided along the longitudinal direction of the side edge of the door;
The smoke shielding member has a protrusion that extends in the closing direction of the door,
When the door is closed, the protruding portion of the smoke shielding member abuts on the bent portion, and elastically deforms toward the door side along the bent portion, whereby the smoke shielding member A door device for an elevator entrance / exit, wherein the bent portion is in close contact with the bent portion. A three-way frame provided at the entrance between the elevator hoistway and the elevator hall;
A threshold provided at the bottom of the three-way frame;
An elevator doorway door device comprising a door disposed on the upper side of the sill and facing the hoistway side of the three-way frame,
The door is a double-opening type constituted by a pair of panels, and includes a door stop smoke shielding mechanism that closes a gap between the door cover portions of the door,
The door stop smoke shielding mechanism is provided along a longitudinal direction of the door holder of one panel, and is attached to a first bent portion bent toward the door pocket with respect to the door holder, and the other a curved plate which is formed of a curved portion curved in the panel side,
A smoke-shielding member that is provided along the longitudinal direction of the door stop portion of the other panel and that is attached to a second bent portion that is bent toward the door pocket with respect to the door stop portion ;
The smoke shielding member has a protruding portion extending toward the curved plate side, and the curved portion is provided so as to substantially coincide with the center of the smoke shielding member including the protruding portion,
When the door is closed, the smoke shielding member comes into contact with the curved plate and elastically deforms in a direction away from the panel along the curved portion , whereby the smoke shielding member and the curved A door device for an elevator entrance / exit, characterized in that the plate is in close contact.

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