JP2018039632A - Platform door smoke blocking device of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a platform door smoke blocking device of elevator preventing a smoke blocking body from always contacting with a platform threshold to avoid decreasing of air tightness because the smoke blocking body is worn early and generating of slide noise between the smoke blocking body and the platform threshold.SOLUTION: A platform door smoke blocking device of elevator blocking a gap between a platform door and a platform threshold comprises: a smoke blocking body that is provided to a bottom end of the platform door and can slide to the vertical direction for the platform door; a rotor provided in the platform door, rotating in conjunction with switching actions of the platform door and sliding the smoke blocking body to the vertical direction; and an arm system provided to the rotor and rotating the rotor depending on the switching actions of the platform door.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an elevator landing door smoke shielding device for closing a gap between an elevator landing door and a landing threshold.

  Conventionally, it is provided at the lower end of the landing door, and is provided between the smoke shield that slides up and down in conjunction with the opening and closing operation of the landing door, and between the smoke shield and the opening and closing mechanism of the landing door. An interlocking mechanism that slides the smoke shield up and down in conjunction with the opening and closing operation, and prevents the smoke door from touching the landing sill until immediately before the landing door is closed. A smoke device is known (see, for example, Patent Document 1).

JP 2007-45575 A

  However, in Patent Document 1, the interlocking mechanism that slides the smoke shield includes a winding device provided on a hanger roller of a landing door, a first interlocking rope having one end wound around the winding device, and a first interlocking mechanism. The first winder gear provided at the other end of the rope, the second winder gear driven by the rotation of the first winder gear, and the second winder gear interlock with each other, and the smoke shield And a second interlocking rope connected to each other.

  Therefore, when the first interlocking rope or the second interlocking rope is cut, the smoke shielding body is always pressed against the landing sill by the spring force provided on the smoke shielding body. There is a problem that the airtightness is reduced due to wear and the sliding noise between the smoke shield and the landing sill is generated.

  The present invention has been made to solve the above-described problems, and prevents the smoke shield from being always in contact with the landing sill. It is an object of the present invention to obtain an elevator landing door smoke shielding device that does not decrease or generate a sliding sound between the smoke shield and the landing threshold.

  A landing door smoke shielding device for an elevator according to the present invention is an elevator landing door smoke shielding device that closes a gap between an elevator landing door and a landing sill, and is provided at a lower end portion of the landing door. A smoke shield that is slidable in the vertical direction and a rotating body that is provided in the landing door, rotates in conjunction with the opening and closing operation of the landing door, and slides the smoke shielding body in the vertical direction. And an arm mechanism that rotates the rotating body in accordance with the opening / closing operation of the door.

According to the elevator door smoke control device according to the present invention, the smoke door is provided at the lower end of the hall door and is slidable in the vertical direction with respect to the hall door, and is provided in the hall door. A rotating body that rotates in conjunction with the opening / closing operation and slides the smoke shield vertically, and an arm mechanism that is provided on the rotating body and rotates the rotating body according to the opening / closing operation of the landing door.
This prevents the smoke shield from constantly contacting the landing sill, causing the smoke shield to wear out early and reducing airtightness, or causing sliding noise between the smoke shield and the landing sill. It is possible to obtain an elevator hall door smoke shielding device that does not occur.

BRIEF DESCRIPTION OF THE DRAWINGS It is a structural diagram which shows the door open state of the landing door smoke shielding apparatus of the elevator which concerns on Embodiment 1 of this invention. It is a block diagram which shows the door closed state of the landing door smoke-shielding apparatus of the elevator which concerns on Embodiment 1 of this invention. It is an enlarged view which extracts and shows the rotary body periphery of the landing door smoke-shielding apparatus of the elevator which concerns on Embodiment 1 of this invention. It is a structural diagram which shows the door open state of the landing door smoke shielding apparatus of the elevator which concerns on Embodiment 2 of this invention. It is a structural diagram which shows the door closed state of the landing door smoke shielding apparatus of the elevator which concerns on Embodiment 2 of this invention.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a landing door smoke shielding device for an elevator according to the present invention will be described below with reference to the drawings. In the drawings, the same or corresponding parts will be described with the same reference numerals.

Embodiment 1 FIG.
1 is a structural diagram showing a door open state of a landing door smoke shielding device for an elevator according to Embodiment 1 of the present invention. FIG. 2 is a structural diagram showing a door closed state of the elevator hall door smoke shielding apparatus according to Embodiment 1 of the present invention.

  1 and 2, back angles 2 are erected on both left and right ends of the landing sill 1, and a header case 3 is stretched over the upper ends of the back angles 2. In addition, landing doors 7 that open and close the doorway are suspended and supported by hangers 6 having rollers 5 that roll on rails 4 fixed to the header case 3.

  The header case 3 is provided with a landing door opening / closing mechanism (not shown). When the landing door 7 is opened and closed by the landing door opening / closing mechanism, the guide shoe 8 provided at the lower end of the landing door 7 slides in the groove of the landing sill 1 to guide its opening and closing.

  A smoke shield 9 made of an elastic material such as rubber is provided at the lower end of the landing door 7 so as to be slidable in the vertical direction with respect to the landing door 7. In addition, a rotating body 10 that rotates in conjunction with the opening / closing operation of the landing door 7 and slides the smoke shield 9 in the vertical direction is provided in the landing door 7. In FIGS. 1 and 2, only the smoke shield 9 provided at the lower end of the landing door 7 is shown.

  Further, the rotating body 10 is provided with an arm mechanism 11 having one end connected to the back angle 2 and the other end connected to the rotating body 10 and rotating the rotating body 10 according to the opening / closing operation of the landing door 7. Yes. The rotating body 10 is provided with a spring 12 that returns the rotational position of the rotating body 10 to the initial position.

  FIG. 3 is an enlarged view showing an excerpt around the rotary body of the elevator hall door smoke shielding apparatus according to Embodiment 1 of the present invention. In FIG. 3, the rotating body 10 has a shape in which a part of an ellipse is cut out, and the short side is in contact with the smoke shield 9 in the initial position, that is, in the open state of the landing door 7. Further, the rotating body 10 is provided with a protruding portion 10 a that contacts the smoke shield 9 when the landing door 7 is closed.

  The arm mechanism 11 includes a first arm member 11a and a second arm member 11b, one end of which is connected to the back angle 2 and the rotating body 10, and the other ends of the arm mechanism 11 are engaged with each other. In addition, the 1st arm member 11a and the 2nd arm member 11b are adjusted so that it may engage immediately before the landing door 7 will be in a door closed state.

  Hereinafter, the operation of the elevator hall door smoke shielding apparatus having the above-described configuration will be described. First, the landing door 7 starts to move in the door closing direction from the door open state. Thereafter, immediately before the landing door 7 is closed, the first arm member 11 a and the second arm member 11 b are engaged, and the rotating body 10 rotates in conjunction with the opening / closing operation of the landing door 7.

  Subsequently, when the rotating body 10 rotates, the smoke shield 9 is pushed out and slides downward, and the gap between the landing door 7 and the landing sill 1 is closed at a timing when the landing door 7 is in the door-closed state. At this time, the smoke shield 9 is pressed against the landing sill 1 by the protruding portion 10a and is elastically deformed, thereby realizing sufficient airtightness.

  Here, since the smoke shield 9 is formed of an elastic body such as rubber, wear or the like due to deterioration over time may occur. Therefore, when wear or the like occurs in the smoke shield 9, the amount of extension of the spring 12 increases when the smoke shield 9 is pressed against the landing sill 1 by the protrusion 10 a and is elastically deformed. Therefore, by measuring the amount of elongation of the spring 12 or marking the spring 12, it is possible to easily recognize the wear of the smoke shield 9 or the like.

  In addition, when the landing door 7 operates in the door opening direction from the door closed state, the rotational position of the rotating body 10 is returned to the initial position by the force of the spring 12, so that the smoke shield 9 slides upward. Thereafter, the engagement between the first arm member 11a and the second arm member 11b is released, and the landing door 7 is opened.

  As described above, according to the first embodiment, the landing door smoke shielding device of the elevator is provided at the lower end portion of the landing door and is slidable in the vertical direction with respect to the landing door, and the inside of the landing door A rotating body that rotates in conjunction with the opening / closing operation of the landing door and slides the smoke shield vertically, and an arm mechanism that is provided on the rotating body and rotates the rotating body according to the opening / closing operation of the landing door And.

  Here, by using the arm mechanism, the rope does not break as in Patent Document 1. This prevents the smoke shield from constantly contacting the landing sill, causing the smoke shield to wear out early and reducing airtightness, or causing sliding noise between the smoke shield and the landing sill. It is possible to obtain an elevator hall door smoke shielding device that does not occur.

  The arm mechanism includes a first arm member and a second arm member, one end of which is connected to a back angle and a rotating body that are erected at the end of the landing sill, and the other ends engage with each other. The first arm member and the second arm member engage with each other immediately before the landing door is closed.

  Here, in Patent Document 1, a short period from immediately before the landing door is in the door-closed state to the door-closed state by sliding the smoke shield vertically in conjunction with the opening / closing operation of the hall door. It is also described that the contact between the smoke shield and the landing sill can be eliminated. However, in Patent Document 1, since the vertical position of the smoke shield is determined in proportion to the opening / closing position of the landing door, the smoke shield comes into contact with the landing threshold immediately before the landing door is closed. Become.

  On the other hand, by engaging the first arm member and the second arm member immediately before the landing door is closed, the smoke shield is placed at the landing threshold at the timing when the landing door is closed. Can be contacted with.

  Moreover, the rotating body has a protrusion that contacts the smoke shield when the landing door is closed. Thereby, at the timing when the landing door is in the door-closed state, the smoke shield is pressed against the landing sill by the protruding portion and elastically deformed, and sufficient airtightness can be secured.

  Further, the rotating body is provided with a spring that returns the rotating position of the rotating body to the initial position, and the wear state of the smoke shield can be recognized by the amount of extension of the spring. Therefore, it is possible to easily recognize the wear or the like of the smoke shield simply by looking at the spring without measuring the wear amount of the smoke shield.

Embodiment 2. FIG.
In the first embodiment, the configuration in which only the smoke shield 9 provided at the lower end portion of the landing door 7 is slid is shown, but the present invention is not limited thereto, and is provided on the upper end portion of the landing door 7 and the back angle 2 side. The formed smoke shield 9 may also be slid together.

  FIG. 4 is a structural diagram showing a door open state of a landing door smoke shielding device for an elevator according to Embodiment 2 of the present invention. FIG. 5 is a structural diagram showing the door closed state of the elevator hall door smoke shielding apparatus according to Embodiment 5 of the present invention. In addition, about the structure concerning the landing door 7, since it is the same as that of Embodiment 1 mentioned above, description is abbreviate | omitted.

  4 and 5, the rotating body 10 has one end connected to the back angle 2 and the other end connected to the rotating body 10 to rotate the rotating body 10 according to the opening / closing operation of the landing door 7. 11 is provided. The rotating body 10 is provided with a spring 12 that returns the rotational position of the rotating body 10 to the initial position.

  The rotating body 10 has a square shape, and the three apexes and the smoke shielding bodies 9 provided on the lower end portion, upper end portion and back angle 2 side of the landing door 7 are mutually connected by rods 10b. It is connected. The configuration of the arm mechanism 11 is the same as that of the first embodiment described above, and a description thereof will be omitted.

  Hereinafter, the operation of the elevator hall door smoke shielding apparatus having the above-described configuration will be described. First, the landing door 7 starts to move in the door closing direction from the door open state. Thereafter, immediately before the landing door 7 is closed, the first arm member 11 a and the second arm member 11 b are engaged, and the rotating body 10 rotates in conjunction with the opening / closing operation of the landing door 7.

  Subsequently, when the rotating body 10 rotates, the smoke shield 9 slides in the downward direction, the upward direction, and the back angle 2 direction of the landing door 7, and the landing door 7 is closed at a timing when the landing door 7 is closed. And the gap between the landing threshold 1, the upper part of the doorway, and the side of the doorway.

  When the landing door 7 moves from the door-closed state to the door-opening direction, the rotating position of the rotating body 10 is returned to the initial position by the force of the spring 12, so that the smoke shields 9 are respectively opposite to that when the door is closed. Slide in the direction. Thereafter, the engagement between the first arm member 11a and the second arm member 11b is released, and the landing door 7 is opened.

  As described above, according to the second embodiment, the rotating body further includes an arm mechanism provided on the back angle side provided on the upper end portion of the landing door and the end portion of the landing threshold, respectively. Rotates in conjunction with the opening / closing operation of the landing door, and slides the smoke shields provided at the lower end, upper end, and back angle side of the landing door in the downward direction, upward direction, and back angle direction, respectively. Let

  Here, by using the arm mechanism, the rope does not break as in Patent Document 1. This prevents the smoke shield from constantly contacting the landing sill, causing the smoke shield to wear out early and reducing airtightness, or causing sliding noise between the smoke shield and the landing sill. It is possible to obtain an elevator hall door smoke shielding device that does not occur.

  In Embodiments 1 and 2 described above, a double-opening landing door has been described as an example. However, the present invention is not limited to this, and the present invention can also be applied to a single-opening landing door.

  In the first and second embodiments, it has been described that the arm mechanism 11 includes the first arm member 11a and the second arm member 11b. However, the arm mechanism is not limited to this, and one end of the arm mechanism is the landing threshold 1. It has a folding member connected to the back angle 2 erected at the end of the door and the other end connected to the rotating body 10, and this folding member can extend immediately before the landing door 7 is in the door-closed state. It may be configured. Even in this case, the same effects as those of the first and second embodiments can be obtained.

  In addition, an electrical contact may be provided so that it can be easily determined that the smoke shield 9 has been pushed out. Here, for example, the contact is provided on both sides of the smoke shield 9 with a guide for guiding the slide of the smoke shield 9 and is provided at the tip of the guide. Further, the contact point may be provided on the landing threshold 1.

  1 landing threshold, 2 back angle, 3 header case, 4 rails, 5 rollers, 6 hanger, 7 landing door, 8 guide shoe, 9 smoke shield, 10 rotating body, 10a protrusion, 11 arm mechanism, 11a first arm Member, 11b 2nd arm member.

Claims (6)

An elevator landing door smoke shielding device that blocks a gap between the elevator landing door and the landing threshold,
A smoke shield provided at a lower end of the landing door and slidable in a vertical direction with respect to the landing door;
A rotating body provided in the landing door, rotating in conjunction with the opening and closing operation of the landing door, and sliding the smoke shield vertically.
An arm mechanism that is provided on the rotating body and rotates the rotating body according to an opening / closing operation of the landing door;
Elevator hall door smoke-proof device equipped with. The arm mechanism is
One end has a first arm member and a second arm member that are respectively connected to a back angle standing at an end of the landing sill and the rotating body, and the other ends are engaged with each other,
The elevator door smoke-shielding device according to claim 1, wherein the first arm member and the second arm member are engaged immediately before the landing door is in a door-closed state. The arm mechanism is
One end is connected to a back angle standing at the end of the landing sill, and the other end has a folding member connected to the rotating body,
The elevator door smoke control device according to claim 1, wherein the folding member extends immediately before the landing door is in a door-closed state. The elevator door door smoke-shielding device according to any one of claims 1 to 3, wherein the rotating body has a protrusion that contacts the smoke-shielding body when the landing door is closed. 5. The elevator landing according to claim 4, wherein the rotating body is provided with a spring that returns the rotational position of the rotating body to an initial position, and the wear state of the smoke shield is recognizable by an extension amount of the spring. Door smoke barrier. Further comprising smoke shields provided respectively on the back angle side erected at the upper end of the landing door and the end of the landing sill,
The rotating body rotates in conjunction with the opening / closing operation of the landing door by the arm mechanism, and the smoke shields provided on the lower end portion, the upper end portion and the back angle side of the landing door are respectively connected to the landing door. The elevator door smoke control device according to any one of claims 1 to 3, wherein the elevator door is slid in a downward direction, an upward direction, and a back angle direction.

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