JP6249284B2 - Elevator door opening and closing device - Google Patents

Description

  The present invention relates to an elevator door opening and closing device having a smoke shielding function.

  A general elevator includes a car guide rail for guiding a car and a car, a counterweight, a guide rail for a counterweight, a rope connecting the car and the counterweight, and hoisting in the hoistway. Equipped with a machine.

  The elevator drives the rope by the hoisting machine, thereby moving the car up and down along the guide rail for the car and moving the balance weight up and down along the guide rail for the counterweight.

  The car can move up and down the hoistway and can stop at a landing provided on each floor of the building. The car includes a car-side door opening / closing device. A landing-side door opening / closing device is provided at the landing so as to correspond to the car-side door opening / closing device.

  The landing-side door opening / closing device includes an entrance / exit frame provided at the entrance / exit leading from the landing to the hoistway, a door configured to be openable / closable, and a sill that is disposed below the door and guides the door in the opening / closing direction. Is known (see Patent Document 1).

  In this landing-side door opening / closing device, the sill is formed in a long shape along the door opening / closing direction. On the upper surface of the sill, a groove for guiding the door is formed in an upper opening shape. A guide shoe (guide portion) that fits in the groove is provided at the lower portion of the door. Thereby, the door is comprised so that a reciprocation is possible along a groove part.

  A smoke shielding member is provided at the lower part of the door to prevent smoke from entering the hall. The landing-side door opening and closing device can reliably perform smoke shielding at the lower portion by inserting the guide shoe and the smoke shielding member into the groove portion of the sill (see FIG. 3 in Patent Document 1). Specifically, the landing-side door opening and closing device can perform smoke shielding so that smoke does not pass through the sill with respect to the thickness direction of the door, that is, the direction orthogonal to the longitudinal direction of the sill.

JP 2012-91895 A

  In the conventional landing-side door opening / closing device as described above, smoke shielding can be performed in the door thickness direction (direction perpendicular to the longitudinal direction of the sill), but in the door opening / closing direction, that is, in the longitudinal direction of the sill. The smoke flow along could not be stopped.

  Therefore, an object of the present invention is to provide an elevator door opening / closing device capable of preventing smoke from passing through the sill in the longitudinal direction of the sill.

The elevator door opening and closing device according to the present invention includes a door and a long sill that guides the door in the opening and closing direction. The sill includes a smoke shielding member that prevents smoke from passing along the longitudinal direction of the sill by contacting a widthwise end of the door when the door is closed. The door is configured in a hollow shape. The smoke shielding member is provided in the upper part of the sill so as to be located inside the door. The smoke shielding member is configured to come into contact with the inner surface of the end portion in the width direction of the door when the door is closed .

  According to such a configuration, when the door is closed, the smoke shielding member closes the gap between the end portion in the width direction of the door and the sill by contacting the end portion in the width direction of the door. This makes it possible to prevent smoke from passing along the longitudinal direction of the sill.

Also, Saegikemuri member is brought into contact with the inner surface of the end portion in the width direction of the door, closing the gap between the end portion and the threshold in the width direction of the door. Thereby, it can prevent that smoke passes along the longitudinal direction of a threshold. Moreover, since the smoke shielding member is located inside the hollow door, the door opening / closing operation is not hindered.

  According to the elevator door opening and closing apparatus according to the present invention, the smoke shielding member includes a contact portion that contacts an end portion of the door in the width direction and a fixing portion that is fixed to the sill.

  According to such a configuration, the smoke shielding member is firmly fixed to the sill by the fixing portion, and the smoke passes through the longitudinal direction of the sill by the contact member contacting the end of the door in the width direction. Can be surely prevented.

  According to the elevator door opening and closing apparatus according to the present invention, the sill includes a groove portion for guiding the door. The groove is configured to open downward. The door includes a guide portion that engages with the groove portion and guides the door, a support portion that supports the guide portion, and an attachment member that attaches the support portion to the door. The mounting member includes a smoke shielding member for preventing smoke from passing along the longitudinal direction of the sill.

  According to such a configuration, smoke can be prevented from passing along the longitudinal direction of the sill from the gap between the mounting member and the sill by the smoke shielding member provided on the mounting member.

  According to the present invention, it is possible to prevent smoke from passing through the sill with respect to the longitudinal direction of the sill.

FIG. 1 is a perspective view showing the overall configuration of the elevator. FIG. 2 is a side view showing a landing-side door opening / closing device and a car-side door opening / closing device in an elevator. FIG. 3 is an enlarged front view showing a lower portion of the door. FIG. 4 is a side view showing a lower part of the landing-side door opening / closing device. FIG. 5 is a plan view of the first smoke shielding member. FIG. 6 is a front view of the first smoke shielding member. FIG. 7 is a front view showing the third smoke shielding member. FIG. 8 is a front view showing another example of the third smoke shielding member.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing the overall configuration of the elevator. FIG. 1 illustrates a so-called machine roomless type elevator that does not have a machine room.

  As shown in FIG. 1, the elevator has a car 2, a first guide rail 3 that guides the car 2, a counterweight 4, and a second guide that guides the counterweight 4 in the hoistway 1. A rail 6, a rope 6 that connects the car 2 and the counterweight 4, and a hoisting machine 7 are provided.

  Furthermore, a return wheel 8 for winding the rope 6 is disposed on the upper part of the hoistway 1. In the lower part of the hoistway 1, a control panel 9 for controlling the hoisting machine 7, a speed governor 10 for regulating the speed of the elevator, and a shock absorber 11 are further provided.

  The elevator moves the car 2 up and down along the first guide rail 3 by driving the hoisting machine 7 via the control panel 9. The hoisting machine 7 includes a traction sheave 12, and can drive the car 2 up and down by driving the rope 6 through the traction sheave 12.

  Since the counterweight 4 is connected to the car 2 via the rope 6, the counterweight 4 moves up and down along the second guide rail 5 in accordance with the vertical movement of the car 2, contrary to the movement of the car 2. By connecting the counterweight 4 to the car 2, the hoisting machine 7 can move the car 2 up and down with small power. The governor 10 can stop the car 2 when the speed of the vertical movement of the car 2 exceeds a specified value. When the shock absorber 11 comes into contact with the car 2, the shock can be reduced.

  The car 2 can move up and down the hoistway 1 and can stop at a landing 13 provided on each floor of the building. As shown in FIGS. 1 and 2, the car 2 includes a car-side door opening / closing device 14. A landing-side door opening / closing device 15 is provided at the landing 13 so as to correspond to the car-side door opening / closing device 14. FIG. 1 shows a so-called center open type as an example of these door opening and closing devices 14 and 15.

  As shown in FIGS. 1 and 2, the car-side door opening / closing device 14 includes a plurality of (for example, two) doors 14A and a sill 14B. The door 14 </ b> A is supported by an upper frame 16 provided integrally with the upper portion of the car 2. The upper frame 16 is provided with a door rail 17 for guiding the door 14A. A door hanger 18 supported by the door rail 17 is provided on the upper portion of the door 14A. The door hanger 18 is provided with a plurality of rollers 19 that engage with the door rail 17. The door 14 </ b> A is configured to move in the opening / closing direction via a drive mechanism (not shown) in a state where the roller 19 of the door hanger 18 is engaged with the door rail 17.

  The threshold 14 </ b> B is supported by the lower frame 20 provided at the lower part of the car 2. This threshold 14B has a groove 21 for guiding the door 14A. The groove portion 21 is formed on the upper surface of the sill 14A and is configured in an upper opening shape. A guide portion (guide shoe) 22 provided in the lower portion of the door 14A is fitted in the groove portion 21. The groove portion 21 of the threshold 14B guides the guide portion 22 along the opening / closing direction of the door 14A as the door 14A moves.

  As shown in FIGS. 1 to 4, the landing-side door opening / closing device 15 includes a plurality of (for example, two) doors 15A and a sill 15B. The landing-side door opening / closing device 15 can move the door 15A to the closed position and the open position along the opening / closing direction.

  The door 15A is configured in a rectangular shape having a predetermined length along the vertical direction. The door 15A is formed in a hollow shape by combining a plurality of steel plates having a predetermined shape. The door 15A has a predetermined width W along the horizontal direction (see FIG. 3). Hereinafter, the horizontal direction corresponding to the width W of the door 15A is referred to as “width direction”.

  As shown in FIG. 4, the lower portion 150 of the door 15A is provided at a position away from the upper portion 152 of the sill 15B. That is, the lower portion 150 of the door 15A and the upper portion 152 of the sill 15B are arranged with a predetermined interval (gap) C1 (see FIG. 6). Thereby, a gap is formed between the lower part 150 of the door 15A and the upper part 152 of the sill 15B. Further, the lower portion 150 of the door 15A is configured to open downward.

  The door 15 </ b> A is supported by a frame 26 provided at the landing 13. The frame 26 is for partitioning the entrance / exit of the hall 13. In the present embodiment, a so-called three-way frame is employed for the frame 26. As shown in FIG. 1, the frame 26 includes an upper frame 26a provided along the horizontal direction and a pair of left and right side frames 26b provided along the vertical direction.

  As shown in FIG. 2, the upper frame 26a is provided with a frame 27 for supporting the upper portion of the door 15A. The frame 27 is provided with a door rail 28 for guiding the door 15A. A door hanger 29 is provided on the upper portion of the door 15A. The door hanger 29 is provided with a plurality of rollers 30 that engage with the door rail 28. The door 15 </ b> A moves in the opening / closing direction by engaging with the drive mechanism (not shown) for driving the car-side door opening / closing device 14 with the roller 30 of the door hanger 29 engaged with the door rail 28. Is configured to do.

  As shown in FIG. 2, the threshold 15 </ b> B is supported by a support frame 31 provided on the wall surface of the hoistway 1. In addition to the sill 15B, the support frame 31 supports a protection member 32 for preventing the toe of the elevator user from being caught between the lower portions of the sill 15B. As shown in FIG. 2, the threshold 15 </ b> B and the protection member 32 are fixed to the support frame 31 by fastening means 33 including bolts and nuts. 3 and the subsequent drawings, the support frame 31, the protection member 32, and the fastening means 33 are omitted.

  The sill 15B is configured in a long shape having a predetermined length along the opening / closing direction of the door 15A. The length of the threshold 15 </ b> B is longer than the width of the entrance / exit at the landing 13, that is, the distance between the pair of side frames 26 b in the frame 26. As a result, the door 15A is positioned on the end side of the sill 15B so as not to be seen from the entrance when in the closed position.

  As shown in FIGS. 2 to 4, a groove portion 35 for guiding the door 15A is formed in the lower portion 154 of the sill 15B. The groove part 35 is comprised linearly along the longitudinal direction of the sill 15B. The threshold 15B is of a so-called flat sill type in which the groove portion 35 is opened downward and the upper portion 152 is formed in a flat surface shape.

  The sill 15B includes a smoke shielding member (hereinafter referred to as a “first smoke shielding member”) 36 for preventing smoke from passing along the longitudinal direction of the sill 15B. The first smoke shielding member 36 is located inside the hollow door 15A and is fixed to the upper portion 152 of the sill 15B. More specifically, when the door 15A is in the closed position, the first smoke shielding member 36 is located at a position outside the doorway defined by the frame 26 so as to come into contact with the widthwise end portion 151 of the door 15A. , Fixed to the upper part 152 of the threshold 15B. As shown in FIG. 6, the first smoke shielding member 36 is an L-shaped plate member. The first smoke shielding member 36 includes a contact portion 36a that contacts the door 15A and a fixing portion 36b that is fixed to the sill 15B.

  The contact portion 36a is configured to protrude upward along the vertical direction. The contact portion 36a is formed in a rectangular plate shape. As shown in FIG. 6, the length L1 of the contact portion 36a in the vertical direction is set to be larger than the interval (gap) C1 between the door 15A and the sill 15B. One surface of the contact portion 36a contacts the end portion 151 of the door 15A in the width direction when the door 15A is in the closed position. More specifically, as shown in FIGS. 5 and 6, since the first smoke shielding member 36 is inside the hollow door 15 </ b> A, the contact portion 36 a is located when the door 15 </ b> A is in the closed position. It contacts the inner surface 151a of the end portion 151 in the width direction of the door 15A.

  The contact portion 36a is configured to come into surface contact with the inner surface 151a of the end portion 151 in the width direction of the door 15A. The contact portion 36a may be configured such that the tip thereof contacts the end portion 151 in the width direction of the door 15A. Further, the contact portion 36a can be configured to be elastically deformed when it is in contact with the widthwise end portion 151 of the door 15A.

  The fixing portion 36b is formed in a rectangular plate shape that protrudes in the horizontal direction so as to be perpendicular to the contact portion 36a. The fixing portion 36b is fixed to the upper portion 152 of the sill 15B by a fastening member 39 such as a screw member or a bolt. The fixing portion 36b has an insertion hole 40 through which the shaft portion of the fastening member 39 is inserted. As shown in FIGS. 5 and 6, the insertion hole 40 is configured as a long long hole along the opening / closing direction of the door 15 </ b> A or the longitudinal direction of the sill 15 </ b> B. In addition, the fixing | fixed part 36b can be fixed to the threshold 15B with an adhesive agent or welding other than the fastening member 39. FIG.

  The door 15A engages with the groove portion 35 of the sill 15B, and guides (guide shoes) 41 for guiding the doors 15A, support portions (brackets) 42 for supporting the guides 41, and smoke in the event of a fire. A smoke shielding member (hereinafter referred to as “second smoke shielding member”) 43 for preventing passage through the sill 15B, and an attachment member 44 for attaching the support portion 42 and the second smoke shielding member 43 to the door 15A; Is provided.

  As shown in FIGS. 3 and 4, the guide part 41 and the support part 42 are arranged at two places, that is, a lower part 150 of the door 15 </ b> A, and both end parts 151 and 151 in the width direction of the door 15 </ b> A. The second smoke shielding member 43 is provided between the guide portion 41 and the support portion 42 that are disposed at both end portions 151 and 151 in the width direction of the door 15A.

  The guide part 41 is an elastic body formed of a synthetic resin material such as rubber. The guide part 41 is configured as a long plate member.

  The support part 42 is made of metal and is formed in a long plate shape. The support part 42 is formed into a predetermined shape by, for example, press molding. As shown in FIG. 4, one end portion of the support portion 42 is fixed to the back side of the lower portion 150 of the door 15 </ b> A via the attachment member 44. A guide portion 41 is formed integrally with the other end portion of the support portion 42.

  The second smoke shielding member 43 includes a first member 45 that contacts the side portion 153 of the sill 15 </ b> B and a second member 46 that is attached to the attachment member 44.

  The first member 45 is an elastic body formed of a synthetic resin material such as rubber. The first member 45 includes a contact portion 45 a that contacts the side portion 153 of the threshold 15 </ b> B, and an attachment portion 45 b for attaching the first member 45 to the second member 46.

  The contact part 45a is configured in a plate shape, and is positioned so as to be elastically deformed when contacting the side part 153 of the threshold 15B. Furthermore, as shown in FIG. 4, the contact portion 45a is preferably in surface contact with the side portion 153 of the sill 15B. The landing-side door opening / closing device 15 has the guide portion 41 inserted into the groove portion 35 of the sill 15B, and the contact portion 45a contacts the side portion 153 of the sill 15B. Smoke can be prevented from passing in a direction orthogonal to the longitudinal direction of the threshold 15B.

  As shown in FIG. 4, the attachment portion 45 b is configured as a protrusion that protrudes in a direction opposite to the contact portion 45 a. The attachment portion 45b is configured such that the distal end portion is larger than the base portion.

  As shown in FIG. 4, the 2nd member 42 is comprised by the elongate plate shape by extrusion molding, for example. One end of the second member 42 is fixed to the attachment member 44. At the other end of the second member 41, an attachment recess 47 to which the attachment portion 45b of the first member 45 is attached is formed. The front end portion of the mounting portion 45 b of the first member 45 is fitted into the mounting recess 47.

  The attachment member 44 is made of metal and is formed in a square cylinder shape. A part of the surface of the attachment member 44 is fixed to the back side of the lower portion 150 of the door 15A. The other part of the surface of the attachment member 44 supports the end portion of the support portion 42 and the end portion of the second smoke shielding member 43. The attachment member 44 has a length substantially equal to the width W of the door 15A (see FIG. 3). As shown in FIG. 7, the attachment member 44 is provided at a position away from the upper portion 152 of the sill 15B. That is, the attachment member 44 and the upper part 152 of the sill 15B are arranged with a predetermined gap (gap) C2.

  The attachment member 44 includes a smoke shielding member (hereinafter referred to as “third smoke shielding member”) 51 for preventing smoke from passing along the longitudinal direction of the sill 15B. As shown in FIGS. 4 and 7, the third smoke shielding member 51 is fixed to the attachment member 44 via a fixing member 53.

  In the present embodiment, as the third smoke shielding member 51, for example, a rectangular plate member made of a resin such as rubber is used. As shown in FIG. 7, the vertical length L2 of the third smoke shielding member 51 is set to be larger than the distance (gap) C2 between the attachment member 44 and the upper portion 152 of the sill 15B. Moreover, the lower part 51b of the 3rd smoke-shielding member 51 is arrange | positioned with the micro space | interval (gap) with respect to the upper part 152 of the threshold 15B. It is desirable that this minute interval is about 0.5 mm to 1 mm. The third smoke shielding member 51 may be in contact with the upper part 152 of the sill 15B as long as the lower part 51b is coated with a member (slip material) having a small friction coefficient. Further, if the upper portion 152 of the sill 15B is coated with a member (slip material) having a small friction coefficient, the lower portion 51b of the third smoke shielding member 51 may be in contact with the upper portion 152 of the sill 15B.

  The upper part 51 a of the third smoke shielding member 51 is fixed to the fixing member 53. The fixing member 53 is, for example, a metal square plate member. An upper portion 53 a of the fixing member 53 is fixed to an end portion 44 a in the longitudinal direction of the mounting member 44 by a fastening member 54 such as a bolt or a screw member. As shown in FIGS. 4 and 7, the lower portion 53 b of the fixing member 53 is overlaid on the upper portion 51 a of the third smoke shielding member 51. A portion where the fixing member 53, the lower portion 53b, and the upper portion 51a of the third smoke shielding member 51 overlap is bonded with, for example, an adhesive.

  The fixing member 53 can support the third smoke shielding member 51 without using an adhesive. That is, as shown in FIG. 8, the third smoke shielding member 51 is fixed to the attachment member 44 by sandwiching the upper portion 51 a between the lower portion 53 b of the fixing member 53 and the end portion 44 a of the attachment member 44. .

  As shown in FIG. 4, a smoke shielding member (hereinafter referred to as “fourth smoke shielding member”) 56 is provided between the door 15 </ b> A and the side frame 26 b of the frame 26 to prevent smoke from passing therethrough. Is provided. The fourth smoke shielding member 56 is configured as a rectangular plate member. One end portion of the fourth smoke shielding member 56 is fixed to an end portion 151 in the width direction of the door 15A. The fourth smoke shielding member 56 prevents smoke from passing between the door 15A and the side frame 26b by contacting the side frame 26b when the door 15A is in the closed position.

  According to the elevator landing-side door opening / closing device 15 described above, when the door 15A is in the closed position, the contact portion 36a of the first smoke shielding member 36 contacts the inner surface 151a of the end portion 151 in the width direction of the door 15A. By doing so, the clearance (C1) between the lower part 151 of the door 15A and the upper part 152 of the sill 15B is closed. This makes it possible to prevent smoke from passing along the longitudinal direction of the sill 15B when a fire occurs. Moreover, since the door 15A is formed in a hollow shape and the first smoke shielding member 36 is disposed inside the door 15A, the first smoke shielding member 36 does not hinder the opening / closing operation of the door 15A. Furthermore, since the first smoke shielding member 36 is not in contact with the door 15A during the opening / closing operation of the door 15A, it does not wear due to contact with the door 15A, and has excellent durability. .

  Further, the first smoke shielding member 36 is firmly fixed to the sill 15B via the fixing portion 36b and the fastening member 39. In addition, since the insertion hole 40 having a long hole shape is formed in the fixing portion 36b, the first smoke shielding member 36 can adjust the position of the sill 15B in the longitudinal direction when being fixed by the fastening member 39. It becomes like this.

  Further, since the third smoke shielding member 51 closes the gap (C2) between the mounting member 44 and the sill 15B, smoke passes through this gap (C2) along the longitudinal direction of the sill 15B. Can be prevented. Thereby, even when using the flat sill type sill 15B, that is, when the attachment member 44 for attaching the support portion 42 to the door 15A is required, the landing-side door opening / closing device 15 reliably prevents smoke. It can be performed.

  The elevator door opening and closing device according to the present invention is not limited to the configuration of the above embodiment. Further, the elevator door opening and closing apparatus according to the present invention is not limited to the above-described effects. The elevator door opening and closing apparatus according to the present invention can be variously modified without departing from the gist of the present invention.

  In the above embodiment, the example in which the present invention is applied to the landing side door opening / closing device 15 has been described. However, the present invention can also be applied to the car side door opening / closing device 14.

  In the above embodiment, the landing-side door opening / closing device 15 that employs a so-called flat sill type sill 15B is illustrated, but the present invention is not limited to this, and the present invention can also be applied to a sill in which an upper opening-shaped groove is formed in the upper part. . In this case, the first smoke shielding member 36 may include a smoke shielding portion (blocking portion) that engages with the groove portion and prevents smoke from passing through the groove portion. In this case, the third smoke shielding member 51 is not necessary, and the passage of smoke in the longitudinal direction of the sill 15B can be prevented only by the first smoke shielding member 36.

  In the above embodiment, the example in which the third smoke shielding member 51 is provided at the end 44a of the attachment member 44 has been described, but the present invention is not limited to this. For example, the third smoke shielding member 51 may be provided on the upper portion 152 of the sill 15B, similarly to the first smoke shielding member 36. In this case, it is desirable that the lower part of the attachment member 44 is configured in a lower opening shape, and the third smoke shielding member 51 is fixed to the upper part of the sill 15B so as to be positioned inside the attachment member 44. . Further, in this case, the third smoke shielding member 51 prevents the smoke from passing through the gap between the mounting member 44 and the sill 15B by contacting the inner surface of the longitudinal end portion 44 of the mounting member 44. it can.

  DESCRIPTION OF SYMBOLS 1 ... Hoistway, 2 ... Car, 3 ... 1st guide rail, 4 ... Counterweight, 5 ... 2nd guide rail, 6 ... Rope, 7 ... Hoisting machine, 8 ... Return wheel, 9 ... Control board, 10 ... Speed governor, 11 ... shock absorber, 12 ... traction sheave, 13 ... landing, 14 ... car side door opening / closing device, 14A ... door, 14B ... sill, 15 ... landing side door opening / closing device, 15A ... door, 15B ... sill, 16 ... Upper frame, 17 ... Door rail, 18 ... Door hanger, 19 ... Roller, 20 ... Lower frame, 21 ... Groove, 22 ... Guide part, 26 ... Frame, 26a ... Upper frame, 26b ... Side frame, 27 ... Frame, 28 DESCRIPTION OF SYMBOLS ... Door rail, 29 ... Door hanger, 30 ... Roller, 31 ... Support frame, 32 ... Protection member, 33 ... Fastening means, 35 ... Groove part, 36 ... 1st smoke shielding member, 36a ... Contact part, 36b ... Fixing part, 39 ... Fastening member, 40 ... insertion hole DESCRIPTION OF SYMBOLS 41 ... Guide part, 42 ... Support part, 43 ... 2nd smoke shielding member, 44 ... Attachment member, 44a ... End part of the longitudinal direction in an attachment member, 45 ... 1st member, 45a ... Contact part, 45b ... Attachment part, 46 ... second member, 47 ... mounting recess, 51 ... third smoke shielding member, 51a ... upper part of third smoke shielding member, 51b ... lower part of third smoke shielding member, 53 ... fixing member, 53a ... upper part of fixing member 53b, lower part of the fixing member, 54, fastening member, 150, lower part of the door 15A, 151, end part in the width direction of the door 15A, 151a, inner surface of the end part in the width direction in the door 15A, 152, upper part of the sill 15B 153: side of the sill 15B, 154: lower part of the sill 15B, W: width of the door 15A, C1: interval (gap) between the end of the door 15A in the width direction and the upper part of the sill 15B, C2: attachment Between the member and the top of the threshold (Gap), the vertical length of L1 ... contact portion, the length in the vertical direction of L2 ... contact member

Claims (3)

In an elevator door opening and closing device comprising a door and a long sill that guides the door in the opening and closing direction,
The sill includes a smoke shielding member that prevents smoke from passing along a longitudinal direction of the sill by contacting a widthwise end of the door when the door is closed,
The door is configured in a hollow shape,
The smoke-preventing member is provided at an upper portion of the sill so as to be located inside the door, and when the door is closed, the smoke-preventing member is in contact with an inner surface of an end portion in the width direction of the door. apparatus. The elevator door opening and closing device according to claim 1 , wherein the smoke shielding member includes a contact portion that contacts an end portion of the door in a width direction and a fixing portion that is fixed to the sill. The sill includes a groove for guiding the door, and the groove is configured to open downward,
The door includes a guide portion for engaging the groove portion and guiding the door, a support portion for supporting the guide portion, and an attachment member for attaching the support portion to the door,
The elevator door opening / closing device according to claim 1 or 2 , wherein the attachment member includes a smoke shielding member for preventing smoke from passing along a longitudinal direction of the sill.

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