JP2016204139A - Foreign matter discharge device for elevator door sill groove - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foreign matter discharge device for an elevator door sill groove capable of reducing the occurrence frequency of failures of an elevator door by discharging foreign matters without the foreign matters falling to sill grooves in an elevator door of a right-and-left double sliding type.SOLUTION: In a foreign matter discharge device 60 for an elevator door sill groove, a sill groove is divided into a right side sill groove 52 and a left side sill groove 54 corresponding to right and left doors 22, 24. Discharge belt units 61, 62 are provided in the sill grooves 52, 54, respectively. Each of the discharge belt units 61, 62 comprises a discharge belt which is laid between return rollers so as to cover a position lower than a top face of the sill of the sill grooves, has an opening for inserting each door shoe into the sill groove, and reciprocates with respect to the sill grooves 52, 54 while being interlocked with the right and left doors 22, 24 to discharge foreign matters to the outside of the sill grooves 52, 54.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a foreign matter discharging device for a left and right double-opening elevator door sill groove, and more particularly to a device for preventing foreign matter from being mixed into the sill groove.

  In general, the elevator doors on the landing side and the car side are both hung on a hanger rail arranged just above the entrance and exit, and the door shoe attached to the lower end is configured to open and close by sliding the sill groove Has been. In such an elevator, if foreign objects such as pebbles enter the sill groove, the alien substance is caught between the elevator doors when opening and closing, causing failure, so a through hole is provided in the sill groove to drop the foreign object into the hoistway. There are many elevators.

  In Patent Document 1, a through-hole for discharging foreign matter is provided in the center of the sill groove, and the door shoe enters the sill groove in accordance with the door closing operation of the elevator door. An elevator that prevents a user's fallen object from falling into the hoistway from the through hole by a belt that reciprocates in the sill groove in conjunction with the opening / closing operation of the elevator door when the door is open. A foreign matter discharge device for a door is disclosed.

JP 2010-260699 A

  In the elevator door foreign matter discharging apparatus disclosed in Patent Document 1, foreign matter such as pebbles once enters the sill groove when the door is opened, so that the foreign object is likely to be caught between the sill groove and the door shoe, and the elevator door is likely to break down. There is a problem.

  An object of the present invention is to provide an elevator door sill groove foreign matter discharging apparatus that can reduce the frequency of failure of an elevator door by discharging foreign matter without falling into the sill groove in a left and right double-opening type elevator door.

  A foreign matter discharge device for an elevator door sill groove according to the present invention is a device for preventing foreign matter from being mixed into a sill groove in which a door shoe of a double door elevator door is reciprocally moved. The sill groove corresponds to the elevator door. Separated into a right sill groove and a left sill groove, each sill groove is provided with a discharge belt unit, and each discharge belt unit includes a pair of return rollers provided on both outer sides in the longitudinal direction of the sill groove, and a sill groove An opening for inserting the door shoe into the sill groove is formed so as to cover the position below the upper surface of the sill, and the sill groove is interlocked with the opening / closing operation of the elevator door And a discharge belt that discharges foreign matter out of the sill groove by reciprocating relative to the sill groove.

  In the foreign matter discharging apparatus for an elevator door sill groove according to the present invention, it is preferable that a sill cover is provided on an upper surface of the sill opposite to both sill grooves.

  In the foreign matter discharging apparatus for an elevator door sill groove according to the present invention, it is preferable that the apparatus further includes a cleaning brush disposed so as to contact the belt and a dust box disposed so as to surround the cleaning brush. is there.

  Furthermore, in the foreign matter discharging apparatus for an elevator door sill groove according to the present invention, both ends of the belt in the width direction are inserted into guide grooves provided on both side surfaces of the sill groove so as to be movable along the longitudinal direction of the sill groove. It is suitable.

  According to the foreign matter discharge device for an elevator door sill groove according to the present invention, foreign matter such as pebbles entering each sill groove provided corresponding to the left and right double-opening type elevator door is linked to the opening and closing operation of the elevator door. It is discharged out of each sill groove by a discharge belt that reciprocates in the sill groove. As a result, it is difficult for foreign matter to be caught between the door shoe and each sill groove, and the frequency of failure in the elevator door can be reduced.

It is a figure showing the whole elevator composition to which the foreign substance discharge device of the elevator door sill groove which is an embodiment concerning the present invention is applied. It is a figure which shows the structure by the side of the hoistway of the landing door shown in FIG. It is a figure which shows the state at the time of the door opening of the landing door shown in FIG. It is the elements on larger scale which show the whole structure of the foreign material discharge device of the elevator door sill groove | channel contained in FIG. It is AA sectional drawing shown in FIG. It is the elements on larger scale which show the structure of the right side sill groove in the BB cross section shown in FIG. It is a figure which abbreviate | omits illustration of the sill upper surface contained in FIG. 6, and a part of discharge belt. It is CC sectional drawing shown in FIG. It is a figure which shows the structure of the modification of the foreign material discharge device of the elevator door sill groove which is embodiment of this invention.

  Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In this description, specific shapes, materials, numerical values, directions, and the like are examples for facilitating the understanding of the present invention, and can be appropriately changed according to the application, purpose, specification, and the like. In addition, when a plurality of embodiments and modifications are included in the following, it is assumed from the beginning that these characteristic portions are used in appropriate combinations.

  FIG. 1 is a diagram showing an overall configuration of an elevator 10 to which a foreign matter discharging apparatus for an elevator door sill groove according to an embodiment of the present invention is applied. In FIG. 1, illustration of guide rails for supporting the car and the counter weight so as to be movable in the vertical direction is omitted.

  The elevator 10 includes a hoisting machine 12 disposed in a pit P that is the lower end side of the hoistway S. The hoisting machine 12 raises and lowers the car 14 and the counter weight 16 relative to each other via the main rope 18.

  A suspension wheel 14 a is provided on the ceiling of the car 14 to bridge the main rope 18.

  The counter weight 16 is a counterweight for reducing a load when the hoisting machine 12 lifts the car 14.

One end of the main rope 18 is fixed to the ceiling R of the hoistway S with a bolt or the like, passes through the suspension wheel 14a of the car 14, and then passes through the return wheel 18a of the ceiling R to the hoisting machine 12 positioned below. It is stretched over. The other end of the main rope 18 is also bridged from the hoisting machine 12 to the suspension wheel 16a of the lower counterweight 16 via the return wheel 18b of the ceiling R, and then fixed to the ceiling R of the hoistway S with bolts or the like. ing.
In the present embodiment, the elevator 10 having a configuration in which the hoisting machine 12 is disposed in the pit P is described as an example, but the present invention is not limited to this. For example, the present invention can also be applied to an elevator in which the hoisting machine 12 is arranged in a machine room provided immediately above the hoistway S.

  The opening / closing door 14b of the car 14 is a door of a double door type, and is provided on the front side so as to face the landing door 20 installed at the landing H on each floor.

  FIG. 2 is a diagram showing a configuration viewed from the hoistway S in the door-closed state of the landing door 20 shown in FIG. FIG. 3 is a diagram showing a configuration when the landing door 20 shown in FIG. 2 is opened.

  For example, a left-and-right double-type landing door 20 is installed at the entrance 19 provided in the elevator landing H on each floor. The landing door 20 includes a right door 22 and a left door 24. Since the right door 22 and the left door 24 have substantially the same configuration, only the right door 22 will be described, and the description of the left door 24 will be omitted. The right door 22 is suspended from a hanger rail 26 fixed to a wall surface W immediately above the entrance 19 via a suspension roller 32 so as to be movable in the left-right direction.

  The suspension rollers 32 are respectively disposed on both end sides of a door hanger 34 provided at the upper end of the right door 22. The right door 22 has an engaging portion (not shown) that operates when the car 14 reaches the corresponding floor, and opens and closes when the engaging portion engages with the opening / closing door 14b of the car 14. As shown in FIGS. 2 and 3, the right door 22 is connected to the left door 24 via an interlocking loop mechanism 36 installed immediately above the door hanger 34. The interlocking loop mechanism 36 includes an interlocking roller 37 that is rotatably supported at both ends of the door hanger 34, and an interlocking loop 38 that is installed between the interlocking rollers 37. The right door 22 is connected to the upper part of the interlocking loop 38 via a joint 41, and the left door 24 is connected to the lower part of the interlocking loop 38 via a joint 42. With the above configuration, as shown in FIGS. 2 and 3, the left and right doors 22, 24 can be moved in opposite directions to be opened and closed in a double-open manner.

  Connecting portions 22a and 22b for connecting door shoes 44a and 44b are provided at both ends on the lower end portion of the right door 22, and the connecting portions 22a and 22b are connected to the door shoes 44a and 44b by bolts or the like (not shown). Has been. Each door shoe 44a, 44b is arranged to slide on the threshold 50.

  The elevator 10 includes an elevator sill groove foreign matter discharging device 60 that discharges foreign matter such as pebbles from the sill 50. Hereinafter, the foreign matter discharging apparatus 60 will be described with reference to FIGS. FIG. 4 is a partially enlarged view showing the overall configuration of the foreign matter discharging apparatus 60 included in FIG. FIG. 5 is a diagram showing the configuration of the right sill groove in the AA cross section shown in FIG. FIG. 6 is a diagram showing a configuration of the right side sill groove in the BB cross section shown in FIG. 4.

  The sill 50 on which the foreign matter discharging device 60 is installed is provided with a right sill groove 52 in which the door shoes 44a and 44b of the right door 22 reciprocate and a left sill groove 54 in which the door shoe of the left door 24 reciprocates. .

  As shown in FIG. 4, the foreign matter discharge device 60 includes a right discharge belt unit 61 and a left discharge belt unit 62 corresponding to the right threshold groove 52 and the left threshold groove 54. Since each of the discharge belt units 61 and 62 has substantially the same configuration, only the right discharge belt unit 61 will be described, and the description of the left discharge belt unit 62 will be omitted.

  The right discharge belt unit 61 includes a pair of return rollers 63 and 64 provided on both ends in the longitudinal direction of the right sill groove 52, a discharge belt 66 laid between the return rollers 63 and 64, and a right sill. And a plurality of support rollers 68 disposed on both sides of the end portion of the groove 52 and below the intermediate portion.

  The return roller 63 is provided at a position adjacent to the left end of the right sill groove 52, and has a flange shape (see FIG. 8) in which both ends of the outer peripheral surface protrude in the radial direction so that the discharge belt 66 does not fall off. . The return roller 64 is provided at a position adjacent to the right end of the right sill groove 52, and has a flange shape like the return roller 63. The return rollers 63 and 64 are rotatably supported by the respective support shafts 65 fixedly supported on the wall surface W.

  As shown in FIG. 5, the discharge belt 66 is provided so as to cover the right sill groove 52, and both end portions in the width direction are endlessly guided by guide grooves 55 formed on both side surfaces of the right sill groove 52. Belt. This prevents the discharge belt 66 from floating when it moves. In the present embodiment, the guide groove 55 is provided on both side surfaces of the right side sill groove 52, but may be provided only on one side surface.

  The discharge belt 66 may be made of a material that is easily charged, such as polyethylene or vinyl chloride. Thereby, dust easily adheres to the discharge belt 66, and dust around the threshold 50 can be efficiently removed.

  As shown in FIG. 6, the discharge belt 66 has substantially rectangular openings 66a and 66b corresponding to the positions of the door shoes 44a and 44b of the right door 22 described above. At the time of maintenance inspection and the like, the door shoes 44a and 44b connected to the connecting portions 22a and 22b through the openings 66a and 66b need to be replaced. Therefore, the openings 66a and 66b are almost the same size as the door shoes 44a and 44b. Is formed. Further, as shown in FIG. 5, the discharge belt 66 is held by the guide groove 55 so that the lower surface of the discharge belt 66 comes into contact with the upper surfaces of the door shoes 44a and 44b. Therefore, the openings 66a and 66b are closed by the door shoes 44a and 44b. It will be in the state. This prevents foreign matter such as pebbles from entering the right side sill groove 52 from the openings 66a and 66b. Since the openings 66a and 66b are provided directly below the right door 22, it is difficult for foreign matter such as pebbles to enter.

  Although not shown in detail in the drawing, fixing brackets protrude upward from the upper surfaces of the door shoes 44a and 44b along the connecting portions 22a and 22b, and are bolted at a position above the discharge belt 66. It is fixed to the connecting portions 22a and 22b.

  The outer side surfaces e and f of the openings 66a and 66b are provided so as to be in contact with the outer end surfaces of the connecting portions 22a and 22b, respectively, and the connecting portions 22a and 22b move in either the door opening direction or the door closing direction. However, the discharge belt 66 can be moved together.

  As shown in FIG. 5, the plurality of support rollers 68 have a function of supporting the discharge belt 66 so as to be movable in the left-right direction so that the discharge belt 66 does not bend due to its own weight, and is freely rotatable on a support rod 69 fixed to the wall surface W. Are supported by each.

  FIG. 7 is a view showing the configuration of the installation space 58 in which the return roller 63 is disposed between the two sill grooves 52 and 54, omitting illustration of the sill upper surface 50 a and the discharge belt 66. The installation space 58 is a substantially rectangular parallelepiped space provided between the two sill grooves 52 and 54. The installation space 58 is formed so as to open to the wall surface W side and the lower side, and the side surface a facing the wall surface W is formed closer to the center side of the hoistway S than both the sill grooves 52 and 54. Openings communicating with both sill grooves 52 and 54 are formed in the left and right side surfaces b and c of the installation space 58. Thus, the discharge belt 66 can be passed from the right side sill groove 52 toward the return roller 63. Further, as shown in FIG. 6, a substantially rectangular opening that linearly connects both the sill grooves 52 and 54 is formed on the upper surface d of the installation space 58, and a metal plate material is used to close the opening. A certain sill cover 56 is fitted. The remaining portion of the upper surface d, that is, the portion on the center side of the hoistway S and the portion on the landing H side with respect to the sill cover 56, is covered with the sill upper surface 50a.

  8 is a cross-sectional view taken along the line C-C showing the configuration of the dust box and the cleaning brush included in FIG. 6. As shown in FIG. 4, the right discharge belt unit 61 includes dust boxes 70 and 71 disposed immediately below the return rollers 63 and 64, and cleaning brushes 72 and 73 installed inside the dust boxes 70 and 71. I have.

  As shown in FIG. 8, the dust box 70 has a box shape with an open top surface, and is detachably fixed to a bracket 74 fixedly supported on a wall surface W immediately below the installation space 58 via bolts or the like. Yes. The dust box 71 is disposed directly below the return roller 64 and has the same configuration as the dust box 70. The cleaning brush 72 is fixed to the bottom surface of the dust box 70, and is arranged so that the tip contacts the surface of the discharge belt 66. The dust box 70 is also provided with a cleaning brush having the same configuration as the cleaning brush 72 also directly below the return roller of the left discharge belt unit 62. The cleaning brush 73 has the same configuration as the cleaning brush 72, and is disposed in the dust box 71 so that the tip contacts the surface of the discharge belt 66.

  With the above configuration, foreign substances such as dust and pebbles attached to the surfaces of the discharge belt 66 of the right discharge belt unit 61 and the discharge belt of the left discharge belt unit 62 can be collected in the dust boxes 70 and 71.

  The cleaning brush 72 may be formed of a material such as nylon containing glass fiber. As described above, when the cleaning brush 72 is made of a nylon material containing glass fibers that are easily charged to the positive electrode and the discharge belt 66 is made of a material such as polyethylene or vinyl chloride that is easily charged to the negative electrode as described above, the discharge belt 66 is used. The dust adhering to the surface due to the electrostatic force is easily attracted to the cleaning brush 72, and the dust can be efficiently collected.

  According to the elevator door sill groove foreign matter discharging apparatus 60 according to the present invention, the foreign matter such as pebbles entering the right side sill groove 52 reciprocates in the right side sill groove 52 in conjunction with the opening / closing operation of the landing door 20. It is discharged out of the right sill groove 52 by the unit 61. Therefore, it is possible to make it difficult for foreign matter to be caught between the door shoes 44a and 44b and the right sill groove 52. Similarly, the foreign matter is also discharged from the left sill groove 54 by the left discharge belt unit 62, and the foreign matter can be prevented from being caught between the door shoe and the left sill groove 54. As a result, the occurrence frequency of failures in the landing door 20 can be reduced.

  In the said embodiment, although the foreign material discharge | emission apparatus 60 of the elevator door sill groove was demonstrated and demonstrated as the example installed in the landing door 20, you may make it install in the opening-and-closing door 14b of the passenger car 14. FIG.

  FIG. 9 is a diagram illustrating a configuration of a foreign matter discharge device 80 for an elevator door sill groove that is a modification of the foreign matter discharge device 60 described above. In the following description, the description of the same configuration as that of the foreign matter discharging apparatus 60 will be omitted as appropriate, and only different portions will be described. Further, the same components as those of the foreign matter discharging apparatus 60 will be described with the same reference numerals.

  The discharge belt 66 of the foreign matter discharge device 80 is disposed so as to cover the right side sill groove 82 of the sill 81. The discharge belt 66 is provided so that both ends in the width direction are fitted into a recess 84 having a function as a guide groove formed at the upper end portion of the right sill groove 82. The recess 84 is formed along the longitudinal direction of the sill 81, and the depth thereof is formed to be slightly deeper than the thickness of the discharge belt 66. Therefore, it is possible to form a clean appearance in which the step between the upper surface of the sill 81 and the upper surface of the discharge belt 66 is not conspicuous. Further, since the upper surface of the discharge belt 66 is lower than the upper surface of the sill 81, the user is not stepped on the discharge belt 66, and wear of the discharge belt 66 can be reduced. A door shoe 86 b is disposed in the right side sill groove 82 directly below the discharge belt 66. The vertical length of the door shoe 86b is formed so as to be in contact with the lower surface of the discharge belt 66 in a state where the door shoe 86b is disposed in the right sill groove 82, and has the same function as the door shoe 44b in the above embodiment. doing.

  In addition, according to the foreign substance discharge device of the elevator door sill groove according to the present invention, the invention is not limited to the configuration of the above-described embodiment and its modified examples, but the matters described in the claims of the present application and the equivalents thereof. It goes without saying that various improvements and changes can be made within the scope of.

  10 elevator, 20 landing door, 22 right door, 24 left door, 44a, 44b, 86b door shoe, 52, 82 right sill groove, 54 left sill groove, 56 sill cover, 60, 80 foreign matter discharge device for elevator door sill groove, 61 Right discharge belt unit, 62 Left discharge belt unit, 63, 64 Return roller, 66 Discharge belt, 66a, 66b Opening, 84 depression, H landing, S hoistway, W wall surface.

Claims (4)

A device that prevents the entry of foreign matter into a sill groove in which a door shoe of a double door elevator door is reciprocally moved,
The threshold groove is separated into a right threshold groove and a left threshold groove corresponding to the elevator door,
Each threshold groove is provided with a discharge belt unit,
Each of the discharge belt units is
A pair of return rollers provided outside both ends of the longitudinal direction of the sill groove;
An opening for inserting the door shoe into the sill groove is formed so as to cover the position below the sill upper surface of the sill groove, and an opening and closing operation of the elevator door is formed. An elevator door sill groove foreign matter discharging apparatus comprising: a discharge belt that reciprocally moves relative to the sill groove and discharges foreign matters to the outside of the sill groove. In the foreign matter discharge device of the elevator door sill groove according to claim 1,
A foreign matter discharging apparatus for an elevator door sill groove, wherein a sill cover is provided on the upper surface of the sill facing the both sill grooves. In the foreign matter discharge device of the elevator door sill groove according to claim 1 or 2,
A cleaning brush arranged to contact the belt;
A dust box arranged to surround the cleaning brush;
A foreign matter discharging apparatus for an elevator door sill groove characterized by further comprising: In the foreign matter discharge device of the elevator door sill groove according to any one of claims 1 to 3,
The both ends of the belt in the width direction are inserted into guide grooves provided on both side surfaces of the sill groove so as to be movable along the longitudinal direction of the sill groove. Discharging device.

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