JP2008024402A - Sill clearance sealing device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sill clearance sealing device for an elevator capable of preventing the fall of a foreign material into a hoistway when a passenger gets into or out of an elevator car by blocking up a clearance between both of a car side sill and a landing side sill when a doorway is fully opened, while securing a sufficient clearance when the doorway is fully closed. <P>SOLUTION: Flat belts 12 having sponge-like clearance blocking belts 15 are wrapped around two pairs of pulleys 9, 10 and 11 provided at a lower part of the car 11, and each of the flat belts 12 is connected to each of car side doors 3a and 3b for opening and closing the car side doorway through a bracket 13. Each of the clearance blocking belts 15 is housed under the floor of the car 1 when the car side doorway 2 is fully closed, and on the other hand, each of the flat belts 12 is moved to go around by the opening operation of each of the car side doors 3a and 3b to block up the clearance G between both the sills 4 and 8 when the car side doorway 2 is fully opened. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sill clearance closing device that closes a clearance between both sills on a landing side and a car side of an elevator when an entrance is opened.

  A predetermined gap is provided as a so-called running clearance between the elevator car side and the landing side sills in order to avoid interference between the platform equipment protruding into the hoistway and the running car. Therefore, there is a risk that foreign objects such as keys will fall into the hoistway from the gap when the passenger gets in and out of the car. For the purpose of closing the gap and preventing the foreign object from falling into the hoistway, for example, A technique described in Patent Document 1 has been proposed.

The technique described in Patent Document 1 is such that a brush member is attached to each of the front end surfaces of both the car side and the landing side sill, and when the car reaches the landing on the destination floor, the car side brush member And the front end of the brush member on the landing side overlap each other. That is, when the car arrives at the landing on the destination floor and the passengers get on and off the car, the gap between the car side and the sill on both sides of the car is closed by the both brush members, and foreign matter entering the hoistway is blocked. I try to prevent it from falling.
JP 2000-118932 A

  However, in the technique described in Patent Document 1, when the car passes through the landing on each floor while traveling, both the car-side and landing-side brush members are bent and deformed to allow the car to pass. Therefore, when a foreign object falls on the brush member, the brush member may be bent and deformed, and the foreign object may fall into the hoistway. In addition, the fallen foreign object becomes entangled with the brush member, and it becomes complicated to find the foreign object. There is fear and it is not preferable.

  The present invention has been made in view of the above problems, and in particular, when the doorway is fully closed, a sufficient gap is secured between both the car side and landing side sills, while both the car side and the landing side are opened when the doorway is opened. An object of the present invention is to provide an elevator sill gap closing device that more reliably prevents foreign substances from falling into the hoistway by closing the gap between the sills.

  The invention according to claim 1 is based on the premise that it is an elevator sill gap closing device that closes the gap between the car side and the landing side sills when the doorway is opened, and is flexible for closing the gap when the doorway is opened. A cable-like body connected to the car-side door, and a guide means for guiding the cable-like body, and when the doorway is fully closed, While being stored under the floor, as the cord-like body is pulled by the car-side door during the door opening operation, the gap closing portion is bent and deformed by the guide means along the gap from the floor under the car. It is drawn out and is characterized by closing the gap.

  More specifically, as described in claim 2, a wheel is provided as the guide means below the car-side sill, and a part of the cord-like body wound around the wheel is It is arranged along the gap, and the gap closing part is bent and deformed by passing through the wheel as part of the cord-like body is pulled in the door opening direction at the time of door opening operation. It is good to be pulled out along the gap.

  More specifically, as described in claim 3, the cord-like body is an endless one, and the cord-like body is disposed at least below the sill on the car side so as to face each other in the door opening / closing direction. It is assumed that it is wound around the wheel.

  Therefore, in at least the invention according to the first aspect, when the car runs with the doorway fully closed, the gap closing portion is stored under the car floor, while the door is opened by the gap closing portion when the doorway is opened. And the gap between the two thresholds on the landing side will be blocked.

  In addition, as described in claim 4, when the gap closing portion is configured to close the gap over almost the entire width of the entrance / exit when the entrance / exit is opened, foreign matter falls from the gap into the hoistway. It is more desirable to further prevent the problem.

  In addition, as described in claim 5, when the gap closing portion is formed by attaching a flexible gap closing band to the surface of the cord-like body, the gap closing portion is damaged. In this case, it is possible to cope with this by simply replacing the gap blockage zone with a new one.

  According to the first aspect of the present invention, when the car runs with the doorway fully closed, the gap blockage portion is housed under the car floor, and when the doorway is opened, the gap blockage portion is connected to the car side and the landing. Since the gap between the two side sills is closed, it is possible to reliably prevent the foreign matter from falling into the hoistway when the passenger gets on and off the car.

  1 and 2 show a more specific embodiment of the present invention. FIG. 1 is a bottom view of an elevator car when the doorway is fully closed, and FIG. 2 is a front view of the lower part of the car when the doorway is fully closed. FIG.

  As shown in FIGS. 1 and 2, a car side doorway 2 formed in a car 1 that moves up and down in a hoistway is opened and closed by two car side doors 3a and 3b, and each car side door 3a. , 3b are guided by a car side sill 4 provided at the lower edge of the car side entrance 2. In addition, the door opening / closing type of the car side doorway 2 is a so-called two-sheet double opening type.

  Here, when the car 1 reaches the landing 5 on the destination floor, the car-side doors 3a and 3b are engaged with the landing-side doors 7a and 7b that open and close the landing-side entrance 6 by a door engaging device (not shown) as is well known. It comes to match. That is, the landing-side doors 7 a and 7 b are interlocked with the car-side doors 3 a and 3 b that are driven by a door driving device (not shown) provided in the car 1 when the doorway is opened and closed, and the landing-side doors 7 a and 7 b are connected to the landing-side doorway 6. The landing side entrance 6 is opened and closed by being guided by the landing side threshold 8 provided at the lower edge.

  In addition, a predetermined gap G is provided as a so-called running clearance between the car side sill 4 and the landing side sill 8.

  On the lower surface of the car 1, a first pulley 9, a second pulley 10, and a third pulley 11 are provided as a set, and two sets of pulleys 9, 10, and 11 are provided as wheels. The first pulley 9, the second pulley 10, and the third pulley 11 in each set are arranged so that the lines connecting the pulleys 9, 10, 11 are in a substantially right triangle shape, The pulleys 9, 10, 11 of the set are arranged so as to be symmetrical with each other about a straight line A that bisects both the sills 4, 8 in the door opening / closing direction.

  An endless flat belt 12 that is a cord-like body is wound around each set of pulleys 9, 10, and 11, and each flat belt 12 is wound around each corresponding set of pulleys 9, 10, and 11, respectively. In the plan view, it has a substantially right triangle shape.

  Each flat belt 12 is connected to a corresponding car-side door 3a, 3b via a bracket 13, and each flat belt 12 functions as a guide means in conjunction with the movement of the car-side door 3a, 3b when the door is opened and closed. The pulleys 9, 10, 11 are guided to move around.

  More specifically, the first pulley 9 and the second pulley 10 in each set are disposed opposite to each other in the door opening / closing direction below the car-side sill 4, and are disposed at a substantially central portion of the car-side sill 4. A portion corresponding to a right angle portion of a right triangle of each flat belt 12 is wound around each set of first pulleys 9, and the first pulley 9 and the second pulley 10 of each flat belt 12. The part between the two is disposed along the tip of the car side sill 4, that is, along the gap G between the two sills 4, 8.

  Also, each set of third pulleys 11 is arranged on the lower surface of the car 1, and the portion between the second pulley 10 and the third pulley 11 of each flat belt 12 is on the hypotenuse of a right triangle. Each of the flat belts 12 is pressed against a portion of the flat belt 12 between the second pulley 10 and the third pulley 11 by pressing a pulley-like tensioner 14 from the outer peripheral side. The tension is applied. The tension adjusting mechanism of each flat belt 12 is configured to adjust the tension of each flat belt 15 by changing the mounting position of at least one of the second pulley 10 and the third pulley 11. May be.

  A flexible gap closing band 15 is detachably attached to the outer peripheral surface of each flat belt 12 by, for example, a double-sided tape or a clip. Each gap closing band 15 is formed of a sponge-like material or a material having an equivalent property, and each gap closing band 15 is stored under one floor of the car when both the entrances 2 and 6 are fully closed. . In other words, the gap blockage band 15 is wound around the third pulley 11 when both the entrances 2 and 6 are fully closed, and one end of the gap blockage band 15 is between the first pulley 9 and the third pulley 11. On the other hand, the other end of the gap closing band 15 is positioned between the third pulley 11 and the second pulley 10. And the wide part 15a wider than a general part is formed in the site | part bent by the 3rd pulley 11 at the time of the fully closing of both the entrances 2 and 6 among the gap blockages belts 15.

  Further, the length dimension of each gap closing band 15 is set to be longer than the movement amount of the corresponding car door 3a, 3b during the door opening operation and the door closing operation. 15, the width of the general portion is set to be larger than the gap G between the two thresholds 4 and 8.

  FIG. 3 is a bottom view of the car 1 in an opened / closed state, and FIG. 4 is a cross-sectional view taken along the line BB in FIG.

  In the elevator sill gap closing device configured as described above, the gap closing band 15 is stored in the lower part of the car 1 when the doorway is fully closed, as shown in FIG. Thus, when the car 1 reaches the destination floor and opens the door, each flat belt 12 is pulled in the door opening direction by the left and right car side doors 3a and 3b and moves around. As shown in FIG. 3, each gap blockage band 15 is bent and deformed by passing through the corresponding first pulley 9 as each flat belt 12 moves around. It is pulled out along the gap G so as to spread. As a result, as shown in FIG. 4, the tip of each gap closing band 15 and the tip of the landing side sill 8 overlap each other, and the gap G is closed over the entire width of the entrance / exit. That is, each gap blockage band 15 functions as a gap blockage portion of the corresponding flat belt 12.

  Here, since the widened portion 15a of each gap closing band 15 is located at the bent portion of the first pulley 9 when the entrance / exit is fully opened, a gap is also generated in the substantially central portion of the entrance / exit width, that is, between the gap closing bands 15. Absent.

  Therefore, according to the elevator sill gap closing device in the present embodiment, when the car 1 travels with the doorway fully closed, each gap closing band 15 is stored under the floor of the car 1 so-called running. While a sufficient gap G is secured as clearance, the gap G between the car-side sill 4 and the landing-side sill 8 is closed by each gap closing band 15 when the doorway is opened, so that passengers get on and off the car It is possible to reliably prevent foreign matter from falling into the hoistway. In addition, since each gap closing band 15 can be attached to and detached from the corresponding flat belt 12, when the gap closing band 15 is worn out, the gap closing band 15 can be replaced with a new one. It can be easily handled and has excellent maintenance workability.

  In this embodiment, an example in which the present invention is applied to a double door double door is shown, but the present invention can be applied to any door opening and closing method, for example, a single door door. Is possible.

It is a figure which shows embodiment of this invention, Comprising: The bottom view of the cage | basket | car of an elevator at the time of entrance and exit fully closed. The front view of the cage | basket | car lower part in FIG. The bottom view of the cage | basket | car at the time of doorway opening. BB sectional drawing in FIG.

Explanation of symbols

3a, 3b ... car side door 4 ... car side sill 8 ... landing side sill 9 ... first pulley (guide means)
10 ... Second pulley (guide means)
11 ... Third pulley (guide means)
12 ... Flat belt (cord)
15 ... Gap blockage (gap blockage zone)

Claims (5)

In the elevator sill gap closing device that closes the gap between the sill on the car side and the landing side when the doorway is opened,
While having a flexible gap closing portion that closes the gap when opening and closing the doorway, a cord-like body connected to the car side door,
Guide means for guiding the cords;
With
When the doorway is fully closed, the gap blockage portion is stored under the car floor, but when the door is opened, the guide block causes the gap blockage portion to bend as the cord-like body is pulled by the car side door. An elevator sill gap closing device, which is deformed and pulled out from under a car floor along the gap to close the gap. A wheel is provided as the guide means below the car-side sill, and a part of the cord-like body wound around the wheel is disposed along the gap.
As the part of the cord-like body is pulled in the door opening direction at the time of the door opening operation, the gap closing portion is bent and deformed by passing through the wheel, and is drawn out along the gap. The elevator sill gap closing device according to claim 1.   The cord-like body is an endless one, and the cord-like body is wound around a pair of wheels arranged opposite to each other in a door opening / closing direction at least under a car-side sill. The elevator sill gap closing device according to claim 2.   The elevator sill gap closing device according to any one of claims 1 to 3, wherein when the doorway is opened, the gap closing portion closes the gap over almost the entire width of the doorway. The elevator sill gap closing device according to any one of claims 1 to 4, wherein the gap closing part is formed by attaching a flexible gap closing band to a surface of the cord-like body. .

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