JP2010180041A - Elevator car door safety device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator car door safety device for surely preventing articles from being held in a space between a car door and an erected-column and the car door from being damaged when the elevator car door is opened. <P>SOLUTION: The elevator car door safety device 1 includes the car door 3 having a horizontal rack 5 in an elevator car 2, a first pinion gear 6 engaged with the rack 5, a second pinion gear 7 engaged with the first pinion gear 6, and the erected-column 4 having a mandrel 8 connected to the second pinion gear 7 and a cylindrical finishing panel 9 encircling the mandrel 8 for working in conjunction with the rotation of the mandrel 8. The finishing panel 9 of the erected-column 4 works in conjunction with the opening/closing operation of the car door 3 so as to be rotated relative to the car door 3 in a rotating direction (b) opposite to a moving direction (a) thereof, thus preventing articles from being held in a space between the car door 3 and the rising column 4. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an elevator car door safety device, and more particularly to an elevator car door safety device that prevents an object from being caught in a gap between a car door and an upright when the elevator car door is opened.

  FIG. 8 shows a front view of the car doorway from the inside of the elevator car. A car door 20, an operation panel 21, an upright column 22, an in-car indicator 23, and the like are disposed at the entrance / exit of the elevator car 2. FIG. 9 shows a cross section taken along the line AA of FIG. In order to avoid contact between the car door 20 and the upright column 22, a gap 24 is provided in each of the car door 20 that opens and closes to the left and right of the elevator car 2 and the upright column 22. When the car door 20 is opened, an accident may occur in which a part of the passenger's body is caught in the gap 24 and the passenger's belongings are caught.

  Patent Document 1 discloses an elevator apparatus that closes a gap between a door and a cab and reduces noise in the cab. Here, a metal closing plate is attached to the side surface of the door installed in the elevator cab so as to be rotatable over the entire length of the door. In addition, a magnet is attached to the entrance post installed in the car room at a position facing the closing plate over the entire length of the door. Then, when the door is closed, a closing plate and a magnet are pasted with a magnetic force to seal a gap between the door and the cab.

Japanese Patent Laid-Open No. 10-77186

  When the car door is opened, there is a possibility that a part of the passenger's body is caught in the gap between the car door and the vertical pillar, or the passenger's belongings are caught.

  Further, for example, when a passenger hits a carriage or the like on a standing pillar when getting off, the car door and the standing pillar may come into contact with each other and a squeak noise may be generated or the car door may be rubbed and damaged by the standing pillar.

  The purpose of this application is to solve this problem, and to prevent elevator car door safety by reliably preventing objects from being caught in the gap between the car door and the upright when the elevator car door opens and damage to the car door. Is to provide a device.

  In order to achieve the above object, the elevator car door safety device according to the present invention is an elevator car door safety device that prevents an object from being caught in the gap between the car door and the upright when the elevator car door is opened. A car door having a rack provided laterally on the inner side of the elevator car, a first pinion gear engaged with the rack, a second pinion gear engaged with the first pinion gear, and a second pinion gear And a vertical column composed of a cylindrical finishing plate that surrounds the central shaft and interlocks with the rotation of the central shaft, and the vertical column finishing plate is interlocked with the opening and closing operation of the cage door, Rotating in the direction opposite to the moving direction.

  With the above configuration, in the elevator car door safety device, when the elevator car door is opened, the upright column rotates in the direction opposite to the moving direction with respect to the car door. Therefore, a part of the passenger's body that is about to be caught in the gap between the car door and the vertical pillar due to the movement of the car door, or the passenger's belongings, is discharged from the gap by the rotation of the vertical pillar, and the car door and the vertical pillar are It is reliably prevented from being caught in the gap.

  The elevator car door safety device has an electromagnet in the vicinity of the first pinion gear. When the car door is closed, the first pinion gear is attracted by the magnetic force of the electromagnet and engages with the rack. Is preferably released. Thereby, when the car door of the elevator is closed, the upright column does not rotate in the direction of sandwiching a part of the passenger's body or the passenger's belongings in the gap between the car door and the upright column. Therefore, it is possible to reliably prevent a part of the passenger's body or the passenger's belongings from being caught in the gap between the car door and the upright due to the rotation of the upright.

  In order to achieve the above object, the elevator car door safety device according to the present invention is an elevator car door safety device that prevents an object from being caught in the gap between the car door and the upright when the elevator car door is opened. A car door having a rack provided laterally on the inner side of the elevator car, a pinion gear engaged with the rack, a mandrel connected to the pinion gear, a cylindrical finishing plate surrounding the mandrel and interlocking with the rotation of the mandrel And an auxiliary vertical column having a cylindrical finishing plate that contacts the vertical column and rotates in the direction opposite to the rotation direction of the vertical column. The finishing plate of the auxiliary vertical column is used for opening and closing the car door. It is interlocked and rotates in the direction opposite to its moving direction with respect to the car door.

  With the above configuration, in the elevator car door safety device, when the elevator car door is opened, the auxiliary upright rotates in the direction opposite to the moving direction with respect to the car door. Therefore, a part of the passenger's body or the passenger's belongings that are about to be caught in the gap between the car door and the auxiliary column due to the movement of the car door is discharged from the gap by the rotation of the auxiliary column, and the car door and the auxiliary It is reliably prevented from being caught in the gap with the upright column.

  In addition, the elevator car door safety device has an electromagnet in the vicinity of the pinion gear, and when the car door closes, the pinion gear may be attracted by the magnetic force of the electromagnet to disengage from the rack. preferable. Thereby, when the car door of the elevator is closed, the upright column does not rotate in the direction of sandwiching a part of the passenger's body or the passenger's belongings in the gap between the car door and the upright column. Therefore, it is possible to reliably prevent a part of the passenger's body or the passenger's belongings from being caught in the gap between the car door and the upright due to the rotation of the upright.

  Moreover, as for an elevator car door safety device, it is preferable that a finishing plate consists of a cylindrical plate made of rubber. Thereby, even if it is a case where a passenger's body part or a passenger's belongings are pinched | interposed into the clearance gap between a car door and a standing pillar, the injury can be suppressed to the minimum.

  In the elevator car door safety device, it is preferable that the upright pillar is provided with push springs at the upper and lower ends of the mandrel. As a result, when a part of the passenger's body or the passenger's belongings are caught in the gap between the car door and the vertical column, or when a carriage collides with the vertical column, a function as a cushioning material is added to the vertical column And the injury and damage can be minimized.

  Further, in the elevator car door safety device, it is preferable that the upright column includes a position sensor coupled to the mandrel and a car door control unit that reverses the position of the car door when the position sensor detects the movement of the position. . Alternatively, in the elevator car door safety device, it is preferable that the upright column includes a pressure sensor coupled to the mandrel and a car door control unit that reversely operates in a direction to open the car door when the pressure sensor detects a change in pressure. . As a result, the car door control unit detects the car door when the position sensor or the pressure sensor detects that something has been caught in the gap between the car door and the vertical pole, or that a carriage hits the vertical pole. Inverting operation can minimize injury and damage.

  Furthermore, the elevator car door safety device has a display panel inside the finishing plate, and the display panel is illuminated by the illumination provided inside the finishing plate. It is preferable to alert the passenger. Alternatively, it is preferred that the upright has a sound generator inside the finished version and alerts the passengers by an announcement when the car door opens. Thereby, when the car door of the elevator opens, it is possible to notify the passenger that something is caught in the gap between the car door and the upright.

  As described above, according to the elevator car door safety device of the present invention, when the elevator car door is opened, it is ensured that an object is caught in the gap between the car door and the upright and the car door is damaged. Can be prevented.

It is a perspective view for explaining a schematic structure of one embodiment of an elevator car door safety device according to the present invention. It is the top view which looked at the elevator car door safety device from the upper part about one embodiment. It is a perspective view shown about the method of the engagement cancellation | release of a 1st pinion gear and a rack about one embodiment. It is a perspective view for demonstrating schematic structure of other embodiment of the elevator car door safety device which concerns on this invention. It is the top view which looked at the elevator car door safety device from the upper part about other embodiment. It is a perspective view shown about the method of releasing engagement with a pinion gear and a rack about other embodiments. It is sectional drawing which shows the control method of the car door by a standing pillar. It is the front view which looked at the entrance / exit of the car from the inside of an elevator car. It is AA sectional drawing of FIG.

  Hereinafter, embodiments of an elevator car door safety device according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view illustrating a schematic configuration of one embodiment of an elevator car door safety device. Moreover, the top view which looked at the elevator car door safety apparatus 1 from the upper part in FIG. 2 is shown. The elevator car door safety device 1 includes a car door 3 having a rack 5, a first pinion gear 6, a second pinion gear 7, a mandrel 8, a finishing plate 9, a push spring 10a, a tension spring 10b, a position sensor (pressure sensor). ) 12 and the upright column 4 having the electromagnet 11.

  On the inner side of the elevator car 2, a rack 5 is provided in the elevator car door 3 in the lateral direction. The rack 5 moves in the same direction as the car door 3 opens in the direction of the arrow (a) in FIG. A first pinion gear 6 that engages with the rack 5 is attached to the upright column 4 of the elevator car 2, and rotates in the rotation direction (c) of FIG. 2 as the car door 3 opens and closes. And the 2nd pinion gear 7 engaged with the 1st pinion gear 6 rotates in the rotation direction (b) of FIG. The second pinion gear 7 is connected to the mandrel 8 of the upright column 4. The mandrel 8 of the upright column 4 is surrounded by a cylindrical finishing plate 9. Therefore, when the car door 3 opens in the direction of the arrow (a) in FIG. 2, the finishing plate 9 of the upright column 4 rotates in the rotational direction (b) opposite to the moving direction with respect to the car door 3.

  In this way, a part of the passenger's body or the passenger's belongings that are about to be sandwiched in the gap between the car door 3 and the upright column 4 due to the movement of the car door 3 is discharged by the rotation of the finishing plate 9 of the upright column 4. Thus, it is reliably prevented from being caught in the gap between the car door 3 and the upright column 4.

  FIG. 3 shows a method for releasing the engagement between the first pinion gear 6 and the rack 5. The first pinion gear 6a is in engagement with the rack 5 when the car door 3 is opened. However, when the car door 3 is closed, the engagement with the rack 5 is released. As shown in FIG. 2, when the car door 3 is closed, it moves in the direction of the arrow (a ′), and the passenger's body part or the passenger's belongings are The possibility of being caught in the gap is low. On the other hand, when the first pinion gear 6 and the rack 5 are engaged, the finishing board 9 of the upright column 4 rotates in the rotation direction (b ′) as shown in FIG. Alternatively, the passenger's belongings may be caught in the gap between the car door 3 and the upright column 4. Therefore, when the car door 3 is closed, the first pinion gear 6a is pulled by the magnetic force of the electromagnet 11 provided on the upper portion of the first pinion gear 6 to be engaged with the rack 5 as the position of the first pinion gear 6b. Is released. Thereby, when the car door 3 is closed, the finishing board 9 of the upright column 4 does not rotate.

  FIG. 4 is a perspective view illustrating a schematic configuration of another embodiment of the elevator car door safety device. The elevator car door safety device 30 includes a car door 3 having a rack 5, a pinion gear 37, a mandrel 38, a finishing plate 9, a push spring 10 a, a tension spring 10 b, a position sensor (pressure sensor) 12, and an upright column having an electromagnet 31. 34 and an auxiliary upright column 32 having a cylindrical finishing plate 39.

  FIG. 5 shows a plan view of the elevator car door safety device 30 as viewed from above. On the inner side of the elevator car 2, the rack 5 provided on the elevator car door 3 moves in the same direction as the car door 3 opens in the direction of the arrow (e) in FIG. 5. A pinion gear 37 that engages with the rack 5 is attached to the upright column 34 of the elevator car 2, and rotates in the rotation direction (f) of FIG. 5 as the car door 3 opens and closes. The pinion gear 37 is connected to a mandrel 38 of the upright column 34. The mandrel 38 of the upright 34 is surrounded by a cylindrical finishing plate 9. Further, an auxiliary upright column 32 that is in contact with the upright column 34 is provided in contact with the car door 3. This auxiliary column 32 also has a finishing board 39 on the outer periphery. Therefore, when the car door 3 is opened in the direction of the arrow (e) in FIG.

  In this way, a part of the passenger's body or the passenger's belongings that is about to be sandwiched in the gap between the car door 3 and the auxiliary upright 32 due to the movement of the car door 3 is the rotation of the finishing plate 39 of the auxiliary upright 32. Is reliably prevented from being caught in the gap between the car door 3 and the auxiliary upright column 32.

  FIG. 6 shows a method for releasing the engagement between the pinion gear 37 and the rack 5. The pinion gear 37a is engaged with the rack 5 when the car door 3 is opened. However, when the car door 3 is closed, the engagement with the rack 5 is released. As shown in FIG. 5, when the car door 3 is closed, it moves in the direction of the arrow (e ′), and the passenger's body part or the passenger's belongings are moved to the car door 3 and the auxiliary upright 32. The possibility of being caught in the gap is low. On the other hand, when the pinion gear 37a and the rack 5 are engaged, the finishing board 39 of the auxiliary upright column 32 rotates in the rotation direction (g ′) as shown in FIG. There is a possibility that passenger's belongings are caught in the gap between the car door 3 and the auxiliary upright 32. Therefore, when the car door 3 is closed, the pinion gear 37a is pulled by the magnetic force of the electromagnet 31 provided on the top of the pinion gear 37, and the engagement with the rack 5 is released as the position of the pinion gear 37b. Thereby, when the car door 3 is closed, the finishing board 9 of the upright column 34 and the finishing board 39 of the auxiliary upright column 32 do not rotate.

  The finishing plate 9 of the elevator car door safety device 1 in FIG. 1 and the finishing plates 9 and 39 of the elevator car door safety device 30 in FIG. 4 are made of a rubber plate having high viscosity. As a result, when a part of the passenger's body or the passenger's belongings is sandwiched between the car door 3 and the vertical pillars 4, 34, or when a carriage collides with the vertical pillars 4, 34, the vertical pillar 4 , 34 can be added with a function as a cushioning material to minimize injuries and damages. In the embodiment shown in FIG. 4, the finishing plate 9 of the upright column 34 and the finishing plate 39 of the auxiliary upright column 32 rotate in opposite directions while being in contact with each other. At this time, the finishing boards 9 and 39 are made of rubber having a high friction coefficient, and thus rotate in conjunction with each other without slipping.

  In FIG. 7, the control method of the car door 3 by the upright pillars 4 and 34 is shown. FIG. 7A shows the case of the embodiment of FIG. 1, and FIG. 7B shows the case of the embodiment of FIG. In FIG. 7A, the upright column 4 is provided with a push spring 10 a and a pull spring 10 b in a direction crossing the push spring 10 a at the upper and lower ends of the mandrel 8, respectively, and presses the finishing board 9 against the car door 3. In FIG. 7B, the vertical pole 34 is provided with a push spring 10 and a pull spring 10b in a direction intersecting with the push spring 10a at the upper and lower ends of the mandrel 38, respectively. Then, the finishing board 39 of the auxiliary upright 32 is pressed against the car door 3 by the upright 34. A position sensor 12 is attached to the mandrels 8 and 38 to detect movement of the mandrels 8 and 38.

Thus, pressing the finished board 9 and 39 to the car door 3, by monitoring the movement of the position of the mandrel 8, 38, some of the passengers of the body into the gap _(P 1, _{P 2)} shown in FIG. 7, Alternatively, when the passenger's belongings are caught, it can be detected as movement of the position of the mandrels 8 and 38. Further, when the carriage or the like collides with the upright columns 4 and 34 from the direction (Q ₁ , Q ₂ ) in FIG. 7, it can be detected as the movement of the mandrels 8 and 38. The position sensor 12 may be a pressure sensor 12 that detects the pressure of the push spring 10a.

  The upright columns 4 and 34 include a car door control unit 15 inside. The car door control unit 15 controls the opening and closing of the car door 3. When the position sensor 12 detects the movement of the position of the mandrels 8 and 38, the car door control unit 15 reverses the car door 3 in the opening direction. Thus, injury and damage can be minimized by reversing the car door 3 in the closing direction.

  The upright columns 4 and 34 have the display panel 13 inside the finishing plates 9 and 39. On the display panel 13, for example, an indication “the door opens, please leave the door” is described. An illumination device (not shown) is provided inside the finishing plates 9 and 39, and the illumination device is turned on in conjunction with the opening of the car door 3. Here, the finishing plates 9 and 39 are made of a translucent material. Accordingly, the display panel 13 is illuminated by the lighting of the lighting device, and alerts the passengers.

  Further, the upright pillars 4 and 34 have the sound generator 14 inside the finishing plates 9 and 39, and are interlocked when the car door 3 is opened. For example, by an announcement such as “the door opens, please move away from the door”. Call attention to passengers.

  1,30 Elevator car door safety device, 2 Elevator car, 3,20 Car door, 4,22,34 Standing pole, 5 Rack, 6 First pinion gear, 7 Second pinion gear, 8,38 Mandrel, 9,39 Finish Panel, 10a Push spring, 10b Pull spring, 11, 31 Electromagnet, 12 Position sensor or pressure sensor, 13 Display panel, 14 Sound generator, 15 Car door control unit, 21 Operation panel, 23 In-car indicator, 24 Gap, 32 Auxiliary column, 37 pinion gear.

Claims (10)

In the elevator car door safety device that prevents objects from being caught in the gap between the car door and the upright when the elevator car door opens,
A car door having a rack provided laterally on the inside of the elevator car;
A first pinion gear that engages the rack;
A second pinion gear that engages the first pinion gear;
A mandrel coupled to the second pinion gear; and
A standing column composed of a cylindrical finishing plate surrounding the mandrel and interlocking with the rotation of the mandrel;
With
The elevator car door safety device is characterized in that the finished version of the upright column rotates in the direction opposite to the moving direction with respect to the car door in conjunction with the opening / closing operation of the car door.   The elevator car door safety device according to claim 1, wherein the upright column includes an electromagnet in the vicinity of the first pinion gear, and the first pinion gear is attracted to the magnetic force of the electromagnet when the car door is closed. The elevator car door safety device is characterized in that the engagement with the rack is released. In the elevator car door safety device that prevents objects from being caught in the gap between the car door and the upright when the elevator car door opens,
A car door having a rack provided laterally on the inside of the elevator car;
A pinion gear that engages the rack,
A mandrel connected to the pinion gear,
A standing column composed of a cylindrical finishing plate surrounding the mandrel and interlocking with the rotation of the mandrel;
Auxiliary upright columns that contact the upright columns and rotate in the opposite direction of the upright column rotation direction and have a cylindrical finish plate,
With
The elevator car door safety device is characterized in that the finished version of the auxiliary column is interlocked with the opening / closing operation of the car door and rotates in the direction opposite to the moving direction with respect to the car door.   The elevator car door safety device according to claim 3, wherein the upright column includes an electromagnet in the vicinity of the pinion gear, and the pinion gear is attracted by the magnetic force of the electromagnet when the car door is closed, and is engaged with the rack. An elevator car door safety device characterized by being released.   The elevator car door safety device according to any one of claims 1 to 4, wherein the finishing plate is made of a rubber cylindrical plate.   The elevator car door safety device according to any one of claims 1 to 5, wherein the vertical pole is provided with a push spring at each of upper and lower ends of the mandrel.   The elevator car door safety device according to any one of claims 1 to 6, wherein the upright is a position sensor connected to the mandrel, and when the position sensor detects a movement of the position, the stand is reversed in a direction to open the car door. An elevator car door safety device comprising: a car door control unit.   The elevator car door safety device according to any one of claims 1 to 6, wherein the upright column is a pressure sensor connected to the mandrel, and reverses in a direction to open the car door when the pressure sensor detects a change in pressure. An elevator car door safety device comprising: a car door control unit.   The elevator car door safety device according to any one of claims 1 to 8, wherein the upright has a display panel inside the finishing plate, and the display panel illuminates illumination provided inside the finishing plate. An elevator car door safety device that alerts passengers by display when the car door opens.   The elevator car door safety device according to any one of claims 1 to 8, wherein the upright has a sound generator inside the finish plate, and when the car door opens, attention is given to the passenger by an announcement. Elevator car door safety device characterized by awakening.

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