JP6229945B2 - 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 door opening and closing device, a groove for guiding the door is formed in an upper opening shape in the upper part of the sill. 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 / closing device can reliably perform smoke shielding at the lower part by fitting the guide shoe and the smoke shielding member into the groove portion of the sill.

  In the case of the conventional door opening and closing device as described above, since the groove is formed at the upper part of the sill, foreign matter such as dust enters the groove to prevent the door from being opened and closed, and is also blocked by the smoke shielding member. Smoke function may be reduced.

  In order to solve this problem, for example, a door opening / closing device is known in which a groove is formed on the lower surface side of the sill and a guide shoe is inserted into the groove (see Patent Document 2). By doing in this way, the upper part of a sill does not need to form a groove part but is comprised in flat form. Such a threshold is generally called a flat sill.

JP 2012-91895 A JP 2013-151371 A

  Even when a flat sill is used for the landing-side door opening and closing device, it is necessary to take appropriate smoke shielding measures. In the conventional door opening / closing device, there has been no door opening / closing device provided with an appropriate smoke blocking function.

  Therefore, an object of the present invention is to provide an elevator door opening and closing device that can reliably perform smoke shielding when a flat sill, that is, a sill having a groove opening downward is employed.

The elevator door opening and closing device according to the present invention includes a door and a threshold for guiding the door in the opening and closing direction. The threshold includes a groove 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, and a support portion that supports the guide portion. Elevator door openers, by close contact with the side portion of the sill, further comprising a Saegikemuri member prevents the smoke to pass through the threshold.

According to such a configuration, by Saegikemuri member comes into close contact with the side portion of the sill, smoke during a fire will be able to prevent from passing through the threshold. Further, when the guide portion engages with the groove portion, smoke shielding can be performed at the engaging portion.

According to the present invention, Saegikemuri member together is constituted by an elastic body, it is desirable to close contact with the side portion of the sill by elastic deformation.

According to such a configuration, Saegikemuri member results in restoring force caused by elastic deformation, by close contact with the side portion of the sill by the restoring force, so it is possible to reliably Saegikemuri.

The elevator door opening and closing device according to the present invention includes a door and a threshold for guiding the door in the opening and closing direction. The sill includes a groove for guiding the door, and the groove is configured to open downward. The door includes a guide portion that engages with the groove portion and guides the door, and a support portion that supports the guide portion. The door opening and closing device of the elevator further includes a smoke shielding member that prevents the smoke from passing through the sill by being in close contact with the side or lower part of the sill. The elevator door opening and closing device is disposed below the threshold and further includes a protection member for protecting the user's toes. The smoke shielding member is configured to be in close contact with the side or lower portion of the sill and the protection member.
According to such a configuration, the smoke shielding member can reliably perform smoke shielding by being in close contact with the side or lower portion of the sill and the protection member.

  According to the present invention, it is desirable that the smoke shielding member is formed of an elastic body and is in close contact with the sill and the protection member by elastic deformation.

  According to the present invention, when a flat sill, that is, a sill having a groove opening downward is employed, smoke shielding can be reliably performed.

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 a front view of the door in the landing-side door opening / closing device. FIG. 4 is an enlarged front view showing a lower portion of the door. 5 is a cross-sectional view taken along line VV in FIG. FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. FIG. 7 is a sectional side view showing another embodiment of the door opening and closing device. FIG. 8 is a sectional side view showing another embodiment of the door opening and closing device. FIG. 9 is a sectional side view showing another embodiment of the door opening and closing device. FIG. 10 is a sectional side view showing another embodiment of the door opening and closing device. FIG. 11 is a sectional side view showing another embodiment of the door opening and closing device. FIG. 12 is a sectional side view showing another embodiment of the door opening and closing device. FIG. 13 is a sectional side view showing another embodiment of the door opening and closing device.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. 1 to 6 show an embodiment of the present invention. 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 for guiding the car 2, a counterweight 4, and a second guide rail for guiding the counterweight 4 in the hoistway 1. 5, a rope 6 that connects the car 2 and the counterweight 4, and a hoisting machine 7.

  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 FIG. 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. 2 shows a so-called center open type as an example of these door opening and closing devices 14 and 15.

  As shown in FIG. 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 part 21 is formed in the upper part 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. 2 to 4, the landing-side door opening / closing device 15 includes a plurality of (for example, two) doors 15A and a sill 15B. The door 15 </ b> A is supported by a frame body 26 provided at the hall 13. The frame body 26 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.

  The threshold 15B 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. 5, the threshold 15 </ b> B and the protection member 32 are fixed to the support frame 31 by fastening means including a bolt 33 and a nut 34.

  The sill 15B is made of metal and is formed in a long shape by, for example, extrusion molding. As shown in FIGS. 5 and 6, the threshold 15 </ b> B includes an upper portion 151, a side portion 152, and a lower portion 153. The side portion 152 of the sill 15B includes a vertical surface 152a along the vertical direction and an inclined surface 152b inclined with respect to the vertical direction.

  As shown in FIGS. 3 to 5, a groove portion 35 for guiding the door 15 </ b> A is formed in the lower portion 153 of the sill 15 </ b> B. The groove part 35 is comprised linearly along the longitudinal direction of the sill 15B. The sill 15B is a flat sill type configured such that the groove 35 opens downward.

  The door 15A engages with the groove portion 35 and guides the door 15A, a support portion (bracket) 37 for supporting the guide portion 36, and a smoke 15B when smoke occurs. And a smoke shielding member 38 for preventing the passage. As shown in FIG. 4, the guide part 36 and the support part 37 are the lower part 150 of the door 15A, and are arrange | positioned at the both ends (two places) in the width direction of the door 15A. Moreover, the smoke shielding member 38 is provided between the guide part 36 and the support part 37 which are arrange | positioned at the both ends in the width direction of the door 15A.

  The guide portion 36 is an elastic body formed of a synthetic resin material such as rubber. The guide part 36 is configured as a long plate member.

  The support part 37 is made of metal and is configured in a long plate shape. The support portion 37 is formed into a predetermined shape by, for example, press molding. As shown in FIG. 5, one end portion of the support portion 37 is fixed to the lower side surface of the door 15 </ b> A via the attachment member 40. A guide portion 36 is formed integrally with the other end portion of the support portion 37. Moreover, the length L1 in the vertical direction of the support portion 37 is longer than the gap C between the door 15A and the sill 15B.

  The smoke shielding member 38 is an elastic body formed of a synthetic resin material such as rubber. The smoke shielding member 38 includes a contact portion 41 that contacts the side portion 152 of the sill 15B, an attachment portion 42 that is attached to the door 15A, and a connecting portion 43 that connects the contact portion 41 and the attachment portion 42.

  As shown in FIG. 6, the contact part 41 is comprised by plate shape, and is comprised by linear form in sectional view. As shown in FIG. 6, the contact portion 41 is directed downward along the vertical direction. The contact portion 41 is in close contact with the vertical surface 152a of the side portion 152 of the sill 15B. The length L2 in the vertical direction of the contact portion 41 is longer than the gap C between the lower portion 150 of the door 15A and the upper portion 151 of the sill 15B. The contact portion 41 is preferably in contact with the vertical surface 152a of the sill 15B while being elastically deformed. That is, it is desirable that the contact portion 41 is pressed against the vertical surface 152a of the sill 15B by a restoring force due to elastic deformation.

  As shown in FIG. 6, the attachment portion 42 is configured in a plate shape and in a straight line shape in a cross-sectional view. The attachment portion 42 is directed upward along the vertical direction. The attachment portion 42 is formed so as to be substantially parallel to the contact portion 41. The attachment portion 42 is fixed to the lower side surface of the door 15B.

  The connection part 43 is comprised by plate shape, and is comprised by linear form in sectional view. The connection part 43 is arrange | positioned along the horizontal direction. Therefore, the connecting portion 43 connects the contact portion 41 and the mounting portion 42 in a state where they are separated in the horizontal direction. The connection part 43 is arrange | positioned above the upper part 151 of the threshold 15B.

  As shown in FIGS. 2, 5, and 6, the protection member 32 is supported by the support frame 31 via a support bracket 44. The protection member 32 is fixed to the support bracket 44 by a screw member 45. The protection member 32 includes a protection part 46 for protecting the user's toes and a fixing part 47 fixed to the support bracket 44.

  The protection part 46 is configured as a protruding part protruding upward. The protection part 46 has a facing surface 46a that faces the threshold 15B. The facing surface 46a is configured to face the inclined surface 152b formed on the side portion 152 of the sill 15B. As shown in FIGS. 5 and 6, the facing surface 46 a of the protection unit 46 is an inclined surface that is inclined at a predetermined angle with respect to the vertical direction. The inclination angle of the facing surface 46a is substantially equal to the inclination angle of the inclined surface 152b in the side portion 152 of the sill 15B. Therefore, the opposing surface 46a can be disposed so as to be substantially parallel to the inclined surface 152b of the side portion 152 of the sill 15B.

  The fixing portion 47 is configured in a plate shape and has an insertion hole 48 through which the screw member 45 can be inserted. As shown in FIGS. 5 and 6, the insertion hole 48 is a long hole that is long in the vertical direction. Thereby, the protection member 32 can adjust the position in the vertical direction within the range of the length of the insertion hole 48. A screw hole 44 a into which the screw member 45 is screwed is formed in the support bracket 44.

  According to the elevator landing-side door opening / closing device 15 described above, the contact portion 41 of the smoke shielding member 38 is in close contact with the side portion 152 of the sill 15B, thereby covering the gap between the lower portion of the door and the upper portion of the sill. be able to. This makes it possible to prevent smoke from passing through the threshold 15B when a fire occurs. Moreover, since the guide part 36 is always engaged (inserted) in the groove part 35 of the sill 15B, smoke shielding at this part can be reliably performed.

  Moreover, the contact part 41 of the smoke-shielding member 38 can perform reliable smoke shielding by closely_contact | adhering to the side part 152 of the threshold 15B by elastic deformation.

  Note that when the smoke shielding member 38 is brought into close contact with the sill 15B, it is also conceivable that the contact portion 41 is brought into contact with the upper part 151 of the sill 15B to perform smoke shielding. However, in this case, the smoke shielding member 38 slides and wears on the upper part 151 of the sill 15B. As a result, wear marks of the smoke shielding member 38 remain on the upper portion 151 of the sill 15B, which makes the appearance worse. In addition, the upper portion 151 of the sill 15B is always worn due to the passage of a user or a luggage. When the smoke shielding member 38 slides on the upper portion 151 of the worn sill 15B, the wear of the smoke shielding member 38 is accelerated and the life of the smoke shielding member 38 is shortened.

  On the other hand, in the present invention, since the smoke shielding member 38 is in close contact with the side portion 152 of the sill 15B, the trace of wear of the smoke shielding member 38 is not exposed. Moreover, since the smoke shielding member 38 is in contact with the side portion 152 of the sill 15B without causing wear as in the upper portion 151 of the sill 15B, it prevents early deterioration and ensures a sufficient life. The

  FIG. 7 shows another embodiment of the door opening / closing device (the landing-side door opening / closing device 15) according to the present invention. In the present embodiment, the shape of the smoke shielding member 38 is different from the example of FIG. Further, in FIG. 6, the smoke shielding member 38 including the contact portion 41, the attachment portion 42, and the connecting portion 43 is shown, but the smoke shielding member 38 according to the present embodiment does not have the connecting portion 43.

  In the smoke shielding member 38 according to this embodiment, the contact portion 41 is directly connected to the attachment portion 42. In the example of FIG. 6, the contact portion 41 is configured in a straight line in a cross-sectional view, but in the present embodiment, the contact portion 41 is configured in an arc shape. The contact portion 41 is elastically deformed and is pressed against the side portion 152 of the sill 15B by its restoring force. Specifically, the end of the arc-shaped contact portion 41 is in close contact with the vertical surface 152a and the inclined surface 152b of the side portion 152 of the sill 15B.

  FIG. 8 shows another embodiment of the door opening / closing device (the landing-side door opening / closing device 15) according to the present invention. In the present embodiment, the shape of the smoke shielding member 38 is different from the example of FIG. In FIG. 6, the contact portion 41 of the smoke shielding member 38 is configured in a straight line shape in a cross-sectional view, but in the present embodiment, the contact portion 41 is configured in an arc shape. More specifically, the contact portion 41 includes a first arc portion 41a and a second arc portion 41b.

  The first arc portion 41a is formed in an arc shape protruding toward the side portion 152 of the sill 15B. The protruding portion of the first arc portion 41a is in close contact with the vertical surface 152a of the side portion 152 of the sill 15B. The curvature radius of the 1st circular arc part 41a is set smaller than the curvature radius of the 2nd circular arc part 41b.

  The second arc portion 41 b is formed between the first arc portion 41 a and the connecting portion 43. The second arc portion 41b protrudes in a direction opposite to the protruding direction of the first arc portion 41a. That is, the second arc portion 41b protrudes in a direction away from the side portion 152 of the sill 15B. The second arc portion 41b is elastically deformed, and the first arc portion 41a is brought into close contact with the side portion 152 of the sill 15B by its restoring force.

  9 and 10 show another embodiment of the door opening / closing device (the landing-side door opening / closing device 15) according to the present invention. In the present embodiment, the shape of the smoke shielding member 38 is different from the example of FIG. In the example of FIG. 8, the contact part 41 of the smoke shielding member 38 includes the first arc part 41 a and the second arc part 41 b. However, in the present embodiment, the contact part 41 includes the first linear part 41 c and the first arc part 41 c. A second linear portion 41d. The first straight portion 41c protrudes toward the side portion 152 of the sill 15B along the horizontal direction. As shown in FIG. 9, the distal end portion of the first straight portion 41 c is in close contact with the inclined surface 152 b on the side portion of the sill 15.

  The second straight portion 41d is formed substantially parallel to the attachment portion 42 along the vertical direction. The second straight portion 41d is elastically deformed, and the first straight portion 41c is brought into close contact with the side portion 152 of the sill 15B by its restoring force.

  As shown in FIG. 10, the first straight portion 41c of the contact portion 41 can be in close contact with the lower portion 153 of the sill 15B. In this case, the first straight portion 41c and the second straight portion 41d are elastically deformed, so that the upper surface of the first straight portion 41c is in close contact with the lower portion 153 of the sill 15B.

  FIG. 11 shows another embodiment of the door opening / closing device (the landing-side door opening / closing device 15) according to the present invention. In this embodiment, the smoke shielding member 38 has the 1st linear part 41c and the 2nd linear part 41d similarly to the example of FIG. 9, FIG. In the present embodiment, the shape of the first straight portion 41c is different from the examples of FIGS. The first straight part 41c is inclined at a predetermined angle with respect to the vertical direction. The 1st linear part 41 has the tubular part 41e which can contact | adhere to a threshold. The first straight portion 41c and the second straight portion 41d are elastically deformed and the tubular portion 41e is brought into close contact with the inclined surface 152b of the side portion 152 of the sill 15B by its restoring force. In addition, while arrange | positioning the 1st linear part 41c below the sill 15B, you may stick the tubular part 41e to the lower part 153 of the sill 15B.

  FIG. 12 shows another embodiment of the door opening / closing device (the landing-side door opening / closing device 15) according to the present invention. In the present embodiment, the shape of the smoke shielding member 38 is different from that of the other embodiments described above. The smoke shielding member 38 is configured by a tubular body. The smoke shielding member 38 is fixed to a support portion 37 that supports the guide portion 36. The smoke shielding member 38 is elastically deformed and is in close contact with the side portion 152 of the sill 15B by its restoring force.

  In the present embodiment, it is desirable that the support portion 37 has the same length as the width of the door 15A. That is, in FIG. 3, the two support portions 37 provided at two locations on the lower portion 150 of the door 15 </ b> A are integrated to form a single member. And this support part 37 is comprised so that it may have the length over the full width of the door 15A. Thereby, the support part 37 can cover the clearance gap between the lower part 150 of the door 15A, and the upper part 151 of the sill 15B over the full width of the door 15A.

  FIG. 13 shows another embodiment of the door opening / closing device (the landing-side door opening / closing device 15) according to the present invention. In the present embodiment, the shape of the smoke shielding member 38 is different from the example of FIG. The smoke shielding member 38 includes a linear contact portion 41 and a linear attachment portion 42.

  The contact portion 41 is disposed between the lower portion 153 of the threshold 15B and the protection member 32. In this state, the contact portion 41 is elastically deformed and is in close contact with the protection portion 46 of the protection member 32 and the lower portion 153 of the sill 15B by its restoring force.

  The attachment portion 42 is fixed to the lower portion of the side surface of the door 15 </ b> A via the support member 39. The support member 39 is made of metal and has a long plate shape or a quadrangular prism shape. An attachment portion 42 is fixed to a part of the surface of the support member 39. The support member 39 supports the smoke shielding member 38 by fixing another part of the surface to the lower side surface of the door 15B. Thus, since the smoke shielding member 38 is fixed to the door 15A via the support member 39, the position of the smoke shielding member 38 in the horizontal direction can be adjusted. Specifically, by preparing a plurality of support members 39 having different thicknesses in the horizontal direction and selecting a desired support member 39 from among them, the position of the smoke shielding member 38 in the horizontal direction can be adjusted. Note that the vertical length L3 of the attachment portion 42 is longer than the gap C between the lower portion 150 of the door 15A and the upper portion 151 of the sill 15B.

  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 center open type door opening and closing devices 14 and 15 are exemplified, but the present invention is not limited to this and can be applied to a side open type door opening and closing device.

  In the above embodiment, the contact portion 41, the attachment portion 42, and the connecting portion 43 of the smoke shielding member 38 are all formed of synthetic resin, but the present invention is not limited to this. For example, it is possible to form the attachment portion 42 and the connecting portion 43 with a metal and the contact portion 41 with a synthetic resin.

  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, 27 ... Frame, 28 ... Door rail, 29 ... Door hanger, 30 ... Roller, 31 ... support frame, 32 ... protective member, 33 ... bolt, 34 ... nut, 35 ... groove, 36 ... guide portion, 37 ... support portion, 38 ... smoke shield member, 39 ... support member, 40 ... mounting member, 41 ... contact part, 41 ... 1st circular arc part, 41b ... 2nd circular arc part, 41c ... 1st linear part, 41d ... 2nd linear part, 41e ... Tubular part, 42 ... Mounting part, 43 ... Connection part, 44 ... Support bracket, 44a ... Screw Hole: 45 ... Screw member, 46 ... Protection part, 46a ... Opposing surface, 47 ... Fixing part, 48 ... Insertion hole, 150 ... Lower part of door 15A, 151 ... Upper part of sill 51B, 152 ... Side part of sill 15B, 152a ... Vertical surface, 152b ... Inclined surface, 153 ... Lower part of threshold 15B

Claims (4)

In an elevator door opening and closing device comprising a door and a threshold for guiding the door in the opening and closing direction,
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, and a support portion for supporting the guide portion,
By close contact with the side portion of the sill, further comprising a Saegikemuri member prevents the smoke passes through the threshold, elevator door opening and closing device. The Saegikemuri member together is constituted by an elastic body, in close contact with the side portion of the sill by an elastic deformation, elevator door opening and closing device according to claim 1. In an elevator door opening and closing device comprising a door and a threshold for guiding the door in the opening and closing direction,
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, and a support portion for supporting the guide portion,
It further comprises a smoke barrier member that prevents smoke from passing through the sill by closely contacting the side or lower part of the sill,
It is arranged below the sill and further comprises a protective member for protecting the user's toes,
The Saegikemuri member, and the side or bottom of the sill, the configured so as to be in close contact with the protective member, elevators of door openers.   The elevator door opening and closing device according to claim 3, wherein the smoke shielding member is constituted by an elastic body and is in close contact with the sill and the protection member by elastic deformation.

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