JP2007302369A - Elevator door system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator door system, in which release of closure is enabled, and restoration is easily conducted by remote operation even on occurrence of malfunction. <P>SOLUTION: The device is provided with a door base 2a to open/close an elevator doorway enclosed by doorway frames 1 and a sill 6, a movable door panel 2b provided in a displaceable way on the door base, a movable door panel drawing means to draw the movable door panel toward the door base when the door is opened, a tight energization means 9 to energize the movable door panel tightly toward the doorway frames when the door is closed, and a movable door panel pulling means to pull up the movable door panel upward from the sill surface when the door is opened, and lower the movable door panel when the door is closed to close the gap between the sill surface and the door panel. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an elevator door device.

  2. Description of the Related Art Conventionally, elevator hall door devices have a door base that can reciprocate in the direction of the entrance of the hall and a door panel that is mounted on the door base and can be displaced toward the hall with respect to the door base. A landing door that opens and closes, a biasing means that is provided between the door base and the door panel, biases the door panel toward the landing side, is mounted on the landing door, and the landing side of the door panel against the biasing of the biasing means Holding means for preventing displacement to the door, and holding release means mounted on the landing door to release the holding of the door panel of the holding means. When the door is held by the holding releasing means when the door is closed, It is known that the door panel is displaced to the landing side by the means and is brought into contact with the peripheral edge of the landing doorway, and the gap between the landing door and the peripheral edge is closed (see, for example, Patent Document 1). .

Japanese Patent Laid-Open No. 2004-238096

  In a conventional elevator landing door device, when the door release by the holding release means is released when the door is closed, the door panel is displaced to the landing side by the urging means and is brought into contact with the peripheral edge of the landing entrance. There is only a function in the direction of closing (sealing) the gap between the peripheral portion and the peripheral portion, and if it malfunctions, the door will not open due to friction of the sealed portion, and a reset by a maintenance person is necessary. For example, even if it is applied to a car door device of a high-speed elevator, it cannot be applied to maintain the airtightness of the car room, and is limited to a landing door device.

  The present invention has been made in order to solve the above-described problems. An elevator door device that is configured to be able to be released from the hermetic seal and can be easily restored by remote operation should a malfunction occur. It is to provide.

  In an elevator door device according to the present invention, a door base that opens and closes an elevator entrance surrounded by an entrance frame and a sill, a movable door panel displaceably provided on the door base, and the movable door panel when the door is opened are moved to the door base side. The movable door panel pulling means to be pulled to the door, the close biasing means for biasing the movable door panel so as to be in close contact with the entrance / exit frame side when the door is closed, and the movable door panel is pulled upward from the sill surface when the door is opened, The movable door panel is provided with movable door panel lifting / lowering means for lowering the movable door panel to close the gap between the sill surface and the door panel.

  The movable door panel pulling means includes a guide shaft fixed to the movable door panel and penetrating the door base, a latch provided on the guide shaft, and a wedge-shaped slider movably engaged with the latch. When the door is closed, the thin part of the wedge-shaped slider engages with the latch and the movable door panel is brought into close contact with the entrance / exit frame side by the urging force of the close-contact urging means. When the door is opened, the thick part of the wedge-shaped slider and the latch are engaged. In combination, the movable door panel is pulled toward the door base against the urging force of the close-contact urging means.

  According to the present invention, it is possible to release the sealing, and even if a malfunction occurs, it can be restored by remote operation. In addition, it becomes possible to take measures to keep the cab of the high-speed elevator airtight.

Embodiment 1.
1 is a rear view of an elevator door device according to Embodiment 1 of the present invention as seen from a hoistway side, and FIG. 2 is a partially broken view showing a door open state of the elevator door device according to Embodiment 1 of the present invention. FIG. 3 is a side cross-sectional view, FIG. 3 is a rear view showing the main part of the elevator door device according to Embodiment 1 of the present invention, and FIG. 4 is an enlarged view showing the upper structure of the elevator door device according to Embodiment 1 of the present invention. FIG. 5 is a side sectional view, FIG. 5 is a rear view showing the main part of the elevator door device according to Embodiment 1 of the present invention, and FIG. 6 is a partially broken view of the door closed state of the elevator door device according to Embodiment 1 of the present invention. FIG. 7 is a view corresponding to FIG. 3 and FIG. 7 is a view corresponding to FIG. 3 showing the door closed state of the elevator door device according to the first embodiment of the present invention. FIG. 8 is a diagram of the elevator door device according to the first embodiment of the present invention. Door closed To 4 corresponding to FIG, 9 is a diagram corresponding to FIG. 5 showing the door-closed state of the elevator door apparatus according to Embodiment 1 of the present invention.

In the figure, 1 is an entrance / exit frame composed of a three-way frame provided at the entrance / exit, 2 is a double-opening type entrance door that opens and closes the entrance / exit, on the door base 2a and on the front side of the door base (on the landing side) The movable door panel 2b is provided. A door hanger 3 is fixed to an upper end portion of the landing door 2, and the door hanger 3 is suspended from a door rail 4 provided at the upper part of the entrance / exit frame 1. The landing door 2 is opened and closed along the door rail 4 by a door driving device (not shown). A door leg 5 is fixed to the lower part of the door 2 of the landing. A landing sill 6 having a sill groove is fixed to a landing floor below the landing door 2, and a door leg 5 is inserted into the sill groove. The door hanger 3 and the door leg 5 are respectively fixed to the upper end and the lower end of the door base 2a. The movable door panel 2b is configured to be displaceable to the front side (the landing side) with respect to the door base 2a. An opening 7 and a fixing plate 8 provided in the opening are provided at two locations on both sides of the upper portion of the door base 2a and at one location in the center of the lower portion. Between each fixed plate 8 of the door base 2a and the movable door panel 2b, a close biasing means 9 including a spring or the like for biasing the movable door panel 2b so as to be in close contact with the entrance / exit frame 1 on the landing side is provided when the door is closed. It has been. Further, the landing door 2 is provided with a movable door panel pulling means for pulling the movable door panel 2b toward the door base 2a against the biasing force of the contact biasing means 9 made of a spring or the like when the door is opened. Yes. The movable door panel pulling means is fixed to the movable door panel 2b and is movable in the vertical direction to the guide shaft 10 penetrating the opening 7, the latch 11 provided on the guide shaft 10, and the latch 11 portion of the guide shaft 10. The wedge-shaped slider 12 is connected to a connecting wire 13. When the door is opened, the movable door panel pulling means is configured such that, as shown in FIGS. 2 and 3, the wedge-shaped slider 12 is pulled up by the connecting wire 13 and advances from the wedge-shaped inclined portion to the thick-walled portion, thereby moving the latch 11 and the guide shaft. 10 is drawn to the hoistway side, and the movable door panel 2b is drawn to the door base 2a side. Further, when the door is closed, as shown in FIGS. 6 and 7, the wedge-shaped slider 12 is pulled down by the connecting wire 13, and the latch 11 and the guide shaft are moved from the thick portion to the thin portion through the wedge-shaped inclined portion. 10 moves to the landing side by the urging force of the spring 9. Also, the door 2 of the landing is urged so that the movable door panel 2b is lowered by its own weight when the door is closed to close the gap between the surface of the landing sill 6 and the door panel 2b, and the movable door panel 4 is loaded when the door is opened. There is provided a movable door panel elevating means comprising a combination of a cam 14 for lifting above the sill 8 surface and a roller 15 engaged with the cam surface. And the cam 14 is provided in the upper part by the side of the door base 2a, and the roller 15 is provided in the upper part by the side of the movable door panel 2b. When the door is opened, the movable door panel lifting / lowering means is movable as shown in FIGS. 4 and 5 because the roller 15 of the movable door panel 2b is pulled upward by the mountain of the cam 14 of the door base 2a. The door panel 4 is in a state of being lifted upward from the surface of the landing threshold 8. Further, when the door is closed, as shown in FIGS. 8 and 9, the roller 15 of the movable door panel 2b comes off from the mountain of the cam 14 of the door base 2a, so that the movable door panel 4 is lowered by its own weight as shown in FIG. Thus, the gap between the eight landing thresholds and the door panel 2b is closed. Reference numeral 16 denotes a drive unit made up of a geared motor, 17 denotes a drive pulley that is rotationally driven by the drive unit 16, 18 denotes a free pulley, and 19 denotes a pulley made up of a sprocket provided with the cam 14. The connecting wire 13 is wound around the drive pulley 17, the free pulley 18, and the sprocket pulley 19, and the wedge-shaped slider 12 and the cam 14 are operated in conjunction with the opening / closing operation of the landing door 2.
In addition, a disaster prevention panel 21 installed on each floor and an elevator control panel 22 for controlling the operation of the elevator are connected to the door control device 20 by electric wiring 23. The disaster prevention panel 21 outputs a detection signal to the door control device 20 by sensing heat or smoke with fire detectors (not shown) installed at a plurality of locations on each floor. The electrical wiring 23 has a fixed connection portion 24 fixed to the door rail 4 and a movable connection portion 25 fixed to the door hanger 3 and movable together with the landing door 2 when the landing doorway is opened and closed. Is provided. The fixed connection portion 24 and the movable connection portion 25 are connected to each other when the landing door 2 is in a door-closed state.

Next, the operation of the elevator door device according to the present invention will be described.
First, in the door open state of the landing door 2 (including during opening and closing), as shown in FIGS. 2 and 3, the wedge-shaped slider 12 is pulled up by the connecting wire 13 and proceeds from the wedge-shaped inclined portion to the thick portion. As a result, the latch 11 and the guide shaft 10 are drawn toward the hoistway, and the movable door panel 2b is drawn toward the door base 2a. At the same time, as shown in FIGS. 4 and 5, the roller 15 of the movable door panel 2b is lifted upward by the mountain of the cam 14 of the door base 2a. Therefore, as shown in FIG. Since it is in a state where it is lifted upward, the opening / closing operation of the landing door 2 can be performed smoothly.
When the door 2 of the landing is closed, the driving pulley 17 is rotated by the activation of the driving device 16, and the wedge-shaped slider 12 is pulled down by the connecting wire 13 as shown in FIGS. By moving from the thick part to the thin part through the wedge-shaped inclined part, the latch 11 and the guide shaft 10 are moved to the landing side by the biasing force of the spring 9, and the movable door panel 2b is brought into close contact with the entrance / exit frame 1 on the landing side. At the same time, the drive pulley 16 is rotated by the activation of the drive device 16, the sprocket pulley 19 and the cam 14 are rotated, as shown in FIGS. 8 and 9, and the roller 15 of the movable door panel 2b is moved to the cam 14 of the door base 2a. Since it is off the mountain, as shown in FIG. 6, the movable door panel 4 is lowered by its own weight, and the gap between the surface of the landing sill 8 and the door panel 2b is closed.

Here, as shown in FIG. 2, the latches 11 in the movable door panel pulling means provided at two places on both sides of the upper part of the landing door 2 in the door open state, and the changing points from the thick part to the inclined part of the wedge-shaped slider 12 And the transition point from the thick part to the inclined part of the latch 11 and the wedge-shaped slider 12 in the movable door panel pulling means provided at one center of the lower part of the landing door 2 in the door open state in the door open state. When the distance between is B and the relationship between the two is A> B, in the return operation of the movable door panel 2b, the upper part of the movable door panel 2b is first restored, and then the lower part of the movable door panel 2b is restored. As a result, the load for compressing the spring can be distributed, and the drive device 16 can be made compact and inexpensive.
It is to be noted that the return operation of the movable door panel 2b is more effective by making the order of returning the upper part, returning the lift (upward), and returning the lower part. A limit switch such as a micro switch may be provided to limit the end of the operation stroke of the wedge-shaped slider 12.

  In the above description, the case where the elevator door device of the present invention is applied to the landing door 2 has been described. However, if the elevator door device is applied to a car door of a high-speed elevator, the car can be kept airtight and the influence of high-speed operation can be achieved. It is possible to eliminate or reduce the passenger's ear clogging caused by.

It is the rear view which looked at the door apparatus of the elevator in Embodiment 1 of this invention from the hoistway side. It is a sectional side view which shows the door open state of the door apparatus of the elevator in Embodiment 1 of this invention partially fractured | ruptured. It is a rear view which shows the principal part of the door apparatus of the elevator in Embodiment 1 of this invention. It is a sectional side view which expands and shows the upper part structure of the door apparatus of the elevator in Embodiment 1 of this invention. It is a rear view which shows the principal part of the door apparatus of the elevator in Embodiment 1 of this invention. FIG. 3 is a partially equivalent view of FIG. 2 illustrating a partially closed state of the door device of the elevator according to Embodiment 1 of the present invention. FIG. 4 is a view corresponding to FIG. 3 showing a door-closed state of the elevator door device according to Embodiment 1 of the present invention. FIG. 5 is a view corresponding to FIG. 4 showing a door-closed state of the elevator door device according to Embodiment 1 of the present invention. FIG. 6 is a view corresponding to FIG. 5 showing a door closed state of the elevator door device according to the first embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Entrance / exit frame 2 Door 2a Door base 2b Movable door panel 3 Door hanger 4 Door rail 5 Door leg 6 Platform sill 7 Opening part 8 Fixing plate 9 Spring (adhesion bias means)
DESCRIPTION OF SYMBOLS 10 Guide shaft 11 Latch 12 Wedge-shaped slider 13 Connection wire 14 Cam 15 Roller 16 Drive device 17 Drive pulley 18 Free pulley 19 Sprocket pulley 20 Door control device 21 Disaster prevention panel 22 Elevator control panel 23 Electric wiring 24 Fixed connection part 25 Movable connection part

Claims (6)

A door base that opens and closes an elevator entrance surrounded by an entrance frame and a sill;
A movable door panel displaceably provided on the door base;
A movable door panel pulling means for pulling the movable door panel toward the door base when the door is opened;
Close contact urging means for urging the movable door panel so as to be in close contact with the doorway frame side when the door is closed;
When the door is opened, the movable door panel is lifted upward from the sill surface, and when the door is closed, the movable door panel is lowered to close a gap between the sill surface and the door panel,
An elevator door device comprising:   The movable door panel pulling means is composed of a guide shaft fixed to the movable door panel and penetrating the door base, a latch provided on the guide shaft, and a wedge-shaped slider movably engaged with the latch. When the door is closed, the thin portion of the wedge-shaped slider is engaged with the latch, and the movable door panel is brought into close contact with the entrance / exit frame side by the biasing force of the close-contact biasing means, and when the door is opened, the thick portion of the wedge-shaped slider and the latch The elevator door device according to claim 1, wherein the movable door panel is pulled toward the door base against the urging force of the close-contact urging means.   The movable door panel pulling means is provided at the upper and lower portions of the movable door panel. When the door is closed to the door open state, the engagement of the thick portion of the wedge-shaped slider and the latch at the upper portion of the movable door panel starts and continues. The elevator door device according to claim 2, wherein the engagement between the thick portion of the wedge-shaped slider and the latch at the lower portion starts.   The movable door panel lifting / lowering means is composed of a cam provided on the door base and a roller provided on the movable door panel, and the roller is pulled up by a mountain of the cam when the door is opened, and the roller is moved when the door is closed. The elevator door device according to any one of claims 1 to 3, wherein the elevator door device is disengaged from a mountain of a cam.   The elevator landing door device according to any one of claims 1 to 4, wherein the elevator landing door device is applied to a landing door.   The elevator car door device according to any one of claims 1 to 4, wherein the elevator car door device is applied to a car door of a high-speed elevator.

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