WO2006100928A1

WO2006100928A1 - Door device of elevator

Info

Publication number: WO2006100928A1
Application number: PCT/JP2006/304575
Authority: WO
Inventors: Satoshi Takasawa; Tetsuji Kibe
Original assignee: Toshiba Elevator Kabushiki Kaisha
Priority date: 2005-03-23
Filing date: 2006-03-09
Publication date: 2006-09-28
Also published as: TWI297668B; CN101128386A; MY149468A; JP2006264856A; TW200702277A

Abstract

A door device of an elevator, comprising a landing door (10) and a car door (27). When these doors are open, immediately after the car door (27) with a drive force is moved from a door closed position in a door opening direction, the car door (27) is engaged with the landing door (10) through an engagement mechanism (28), and these both doors are moved in a door opening direction. When the doors are closed, the car door (27) and the landing door (10) are integrally moved in a door closing direction in the engaged state with each other, their engagement is released immediately before they reach the door closed position, and the transmission of the drive force from the car door (27) to the landing door (10) is cut out. The door device also comprises a toggle spring mechanism (14) which, when the doors are closed, is engaged with the landing door (10) immediately before the car door (27) and the landing door (10) near the door closed position, releases the engagement of the car door (27) with the landing door (10), and elastically presses the landing door (10) in the door closing direction.

Description

Specification

Elevator door equipment

Technical field

TECHNICAL FIELD [0001] The present invention relates to an elevator door device for opening and closing an entrance / exit of an elevator car and an elevator hall when an elevator car is landed.

Background art

[0002] The elevator platform on each floor of the building is provided with an entrance for getting on and off the elevator car. An entrance / exit frame is provided so as to surround the entrance / exit, and a sliding door type landing door is installed in the entrance / exit frame, and the entrance / exit is opened and closed by the landing door.

[0003] This landing door is normally closed, and when the car that goes up and down in the hoistway reaches the elevator landing and stops, it receives the driving force of the car as much as the door. It opens and closes.

[0004] The force door of the car is provided with an engagement mechanism for engaging the landing door and transmitting the driving force of the force door to the landing door. When the door is opened, the force door with driving force first moves in the door opening direction, and after moving more than a certain amount, the engagement mechanism is activated by that operation, and the car door and the landing door are engaged. The driving force of the force door is transmitted to the landing door, and the landing door moves together with the force door in the door opening direction to reach the door pocket.

[0005] When the door is closed, the landing door and the car door are kept engaged and are driven by the force door, so that the landing door moves in the door closing direction together with the force door. Then, immediately before the landing door reaches the predetermined door closing position, the engagement between the force door and the landing door by the engagement mechanism is released.

[0006] After the disengagement, the car door moves to the door closing position by its own driving force and closes, and the landing door receives the driving force of the closer and moves to the door closing position. Close. This closer is composed of a spring and a weight that urges the landing door in the door closing direction.

[0007] When the force door and the landing door are closed, the car door and the landing door are not engaged. They are released and separated from each other, so that the car can move up and down without interfering with the landing doors after the door is closed.

[0008] By the way, especially in high-rise buildings, when there is a temperature difference between indoors and outdoors, such as in winter, the updraft in the elevator hoistway becomes stronger, and the space between the hoistway partitioned by the landing door and the elevator platform is strong. The atmospheric pressure difference increases.

[0009] For this reason, during the door closing operation of the landing door, the pressure difference that has been eliminated when the door is opened suddenly increases immediately before the landing door is fully closed, and a strong wind pressure is applied to the contact surface of the landing door. In some cases, the door cannot be closed.

[0010] Particularly recently, smoke-preventing doors with improved sealing performance have been adopted in the event of a fire, and the pressure difference between the inside and outside of the landing doors when the doors are closed further increases. Such inconveniences are likely to occur.

[0011] As a means for preventing such inconvenience, it is effective to reinforce the above-described self-closing by the closer. However, in order to strengthen the self-closing force of the closer, it is necessary to increase the size of the springs and weights, which causes a problem in the elevator installation space.

[0012] The closer 1 always urges the landing door in the door closing direction. Therefore, if the closing force of the closer 1 is strengthened, the landing door is piled on the self-closing force when the landing door is opened. There is a problem that the door must always be moved in the door opening direction with a large driving force through the force door, leading to an increase in the size of the driving mechanism.

[0013] The present invention has been made paying attention to such points, and when the door of the landing door is closed without strengthening the power of the closer, the landing door is reliably moved to a predetermined door closing position. It is an object of the present invention to provide an elevator door device that can achieve complete closing.

Disclosure of the invention

[0014] In order to achieve the above object, the elevator door device of the present invention has the following components.

That is,

Equipped with a landing door that opens and closes the entrance of the elevator landing and a car door that opens and closes the entrance of the car. The power door is driven by a drive unit. When the door is opened, the car door is closed. When the placement force moves by a certain distance in the door opening direction, the force door engages with the landing door through the engagement mechanism by this operation, and the landing door is opened integrally with the force door by this engagement. When the door is closed, the car door and the landing door that are engaged with each other move in the door closing direction so that the force door and the landing door are at a certain distance from the door closing position. In the elevator door device in which the engagement by the engagement mechanism is released by the operation and the transmission of the driving force to the landing door is interrupted by the operation, when the door is closed, Immediately before the landing door approaches the door closing position by a certain distance and the engagement between the force door and the landing door is released, the landing door engages with the landing door and elastically pushes the landing door in the door closing direction. A toggle spring mechanism is provided, and is characterized in that The

[0015] Furthermore, the elevator door device of the present invention has the following constitutional force. That is,

The aforementioned toggle spring mechanism force A bracket that is pivotally attached to an entrance / exit frame that is provided so as to surround the entrance / exit of the elevator, and is connected to the bracket, and the bracket rotates to one side of the neutral position as a boundary. And a spring member that elastically urges the bracket in the direction of rotation on one side and elastically urges the bracket in the direction of rotation on the other side when rotating to the other side. An engagement member that can be engaged with the bracket is provided on the doorway, and when the force door and the landing door move in the door closing direction and approach the door closing position, the landing door is inserted into the bracket via the engagement member. The bracket door is rotated beyond the neutral position by the movement of the car door and the landing door in the door closing direction, and the landing door is elastically moved in the door closing direction by the spring member in response to the rotation. Push It is characterized in that attached.

[0016] Furthermore, the elevator door device of the present invention has the following structural force. That is,

The aforementioned toggle spring mechanism is pivotally attached to the landing door and is connected to the bracket. When the bracket rotates to one side of the neutral position, the bracket is moved to one side. A spring member that elastically urges in the direction of rotation of the door and urges it in the direction of rotation of the other side when rotating to the other side, and is provided so as to surround the entrance / exit of the elevator. An engagement member that can engage with the bracket is provided in the entrance / exit frame, and the bracket of the landing door is engaged when the force door and the landing door move in the door closing direction and approach the door closing position. The car door and landing door The bracket is rotated beyond the neutral position by the movement in the door closing direction, and the landing door is elastically pressed in the door closing direction by the spring member according to the rotation.

[0017] Furthermore, the elevator door device of the present invention has the following constitutional force. That is,

The above-mentioned toggle spring mechanism is equipped with a shock-absorbing member that reduces the impact when the bracket rotates! /

Brief Description of Drawings

FIG. 1 is a front view showing a state of the door device according to the first embodiment of the present invention when the door is opened.

[FIG. 2] FIG. 2 is a front view showing a first stage state during the door closing operation of the door device.

FIG. 3 is a front view showing a second stage state during the door closing operation of the door device.

[FIG. 4] FIG. 4 is a front view showing a state when the door device is completely closed.

FIG. 5 is a front view showing a modified example in which a buffer member is attached to a stagger of a toggle spring mechanism in the door device.

FIG. 6 is a front view showing a state of a first stage in the middle of a door closing operation of a door device according to a second embodiment of the present invention.

FIG. 7 is a front view showing a second stage state during the door closing operation of the door device.

FIG. 8 is a front view showing a state of the door device when the door is completely closed.

FIG. 9 is a front view showing a modification in which a buffer member is attached to a stagger of a toggle spring mechanism in the door device.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

Example 1

1 to 4 show a first embodiment. These figures are front views of the internal force of the elevator hoistway provided in the building as seen from the elevator landing side.

An entrance / exit 1 is formed on the wall surface of the elevator hall, and an entrance / exit frame 2 is installed on the wall surface so as to surround the entrance / exit 1. The entrance / exit frame 2 has a pair of vertical beams 3a and 3b and a horizontal beam 4 installed between the upper portions of the vertical beams 3a and 3b. A guide rail 5 is attached to the horizontal beam 4 horizontally. [0022] Reference numeral 10 denotes a landing door that opens and closes the doorway 1. The landing door 10 has a hanger 11 on the upper part, and the hanger 11 is movably suspended on the above-described guide rail 5, and this landing door 10 is a guide. By moving along the rail 5, the doorway 1 is opened and closed.

A toggle spring mechanism 14 is provided on the lateral beam 4 of the entrance / exit frame 2. The toggle spring mechanism 14 includes a bracket 15, and one end of the bracket 15 is rotatably attached to the cross beam 4 via a shaft 16. A U-shaped engagement groove 17 extending toward the intermediate portion is cut out from the other end of the bracket 15. The edge of the engagement groove 17 on the open side is a guide portion 18 that expands in a tapered shape toward the outside of the end portion of the bracket 15.

[0024] First and second stoppers 20a and 20b are attached to the horizontal beam 4 on both the left and right sides of the bracket 15, and a coil, for example, is provided between the substantially middle portion of the bracket 15 and the horizontal beam 4. A spring member 22 made of a spring is stretched.

[0025] The bracket 15 rotates about the shaft 16 in the clockwise and counterclockwise directions in the figure with a neutral position extending in a substantially vertical direction as a boundary. The spring member 22 extends substantially vertically along the center line of the bracket 15 when the bracket 15 is in a neutral position, and when the bracket 15 rotates clockwise, the spring member 22 is inclined obliquely downward to the left so that the bracket 15 is When the bracket 15 pivots counterclockwise and rotates counterclockwise, the direction of the bracket 15 and the bracket 15 is reversed and tilted diagonally to the right, and the bracket 15 is resiliently biased counterclockwise. I'm getting stronger.

[0026] The bracket 15 is inertially urged through the spring member 22, thereby rotating clockwise and contacting the first stubber 20a, and counterclockwise rotating first. It is held in a bistable state with the state in contact with the second stagger 20b.

An engagement pin 25 is attached to the hanger 11 of the landing door 10 as an engagement member that can engage with the engagement groove 17 of the bracket 15 according to the movement of the landing door 10. Yes.

[0028] 27 shown by a chain line in the figure is a sliding door type car door that opens and closes the entrance / exit of the car that moves up and down in the hoistway, and this car door 27 can be engaged with the landing door 10 28 is provided. The car is provided with a drive (not shown) that drives the force door 27. It is.

[0029] Normally, as shown in FIG. 4, the entrance 1 of the elevator platform is closed by a platform door 10. In this state, a car that moves up and down in the hoistway landing at the elevator platform, and its car door 27 faces the landing door 10. Thereafter, the force door 27 is driven by the drive device and moves in the door opening direction.

[0030] When the force door 27 is moved by a small fixed distance in the door opening direction, the engagement mechanism 28 is activated by the movement, and the force door 27 and the landing door 10 are engaged. As a result, the driving force is transmitted from the car door 27 to the landing door 10, whereby the landing door 10 moves together with the car door 27 in the door opening direction and reaches the door pocket 30 as shown in FIG. The elevator gate 1 and the car doorway will be open, allowing passengers to get on and off.

[0031] When the door is closed, the landing door 10 moves in the door closing direction integrally with the force door 27 driven by the driving device. At this time, as shown in FIG. 1, the bracket 15 is held in a stable state in contact with the first stopper 20a and inclined obliquely downward toward the door pocket 30 side.

When the landing door 10 moves in the door closing direction together with the car door 27 and reaches a predetermined position, the engagement pin 25 of the landing door 10 enters the engagement groove 17 of the bracket 15 as shown in FIG. . Then, when the landing door 10 is driven by the car door 27 and further moves in the door closing direction, the engaging pin 25 moves relatively along the engaging groove 17, and accordingly, the bracket 15 moves to the spring member 22. Pile to elastic force and rotate counterclockwise about shaft 16.

[0033] As the rotation progresses and the bracket 15 is rotated to a position slightly beyond the neutral position as shown in FIG. 3, that is, the landing door 10 is positioned at a certain distance on the front side of the door closing position S. When it reaches the end, the engagement mechanism 28 is activated by the operation, and the engagement between the landing door 10 and the car door 27 is released.

[0034] The force that interrupts the transmission of the driving force from the car door 27 to the landing door 10 due to the release of this engagement. At this time, as shown in FIG. The direction of action of the elastic force of the member 22 reverses and acts as a force that rotates the bracket 15 counterclockwise, that is, a force that moves the landing door 10 in the door closing direction. The door 10 is pushed into the door closing position S accurately so that it can be Close closing is achieved.

Thus, when the landing door 10 approaches to just before the door closing position S and the engagement between the landing door 10 and the car door 27 is released, the elastic force of the spring member 22 is applied to the landing door 10. In addition, therefore, it is possible to move the landing door 10 to the door closing position S accurately and achieve a complete closing without strengthening the force of the closer that moves the landing door 10 in the door closing direction. .

[0036] When the landing door 10 reaches the door closing position S, the bracket 15 is held in a stable state in which the bracket 15 abuts against the second stopper 20b and tilts obliquely downward to the right. In addition, the force door 27 which is disengaged from the landing door 10 is moved to a predetermined door closing position by the driving force of the driving device, and the entrance of the car is closed. When the landing door 10 and the car door 27 are closed, the landing door 10 and the car door 27 are disengaged, and the car can be raised and lowered.

[0037] When the landing door 10 moves in the door opening direction as shown in FIG. 4, the bracket 15 first stakes on the elastic force of the spring member 22 and rotates clockwise according to the movement. Then, when the landing door 10 moves to a certain distance, the bracket 15 exceeds the neutral position, the direction of action of the elastic force of the spring member 22 is reversed, and this acts as a force for rotating the bracket 15 clockwise.

[0038] When the landing door 10 further moves in the door opening direction, the engagement pin 25 is detached from the engagement groove 17 of the bracket 15, and the bracket 15 abuts against the first stopper 20a by the elastic force of the spring member 22. It is stably held in an inclined state, and the landing door 10 reaches the door pocket 30 and stops.

By the way, as shown in FIG. 5 as a modified example, it is possible to attach a buffer member 33 that also has an inertia material force such as rubber to the outer periphery of each of the stubbers 20a and 20b with which the bracket 15 abuts. According to the configuration, the shock and noise when the bracket 15 comes into contact with the stoppers 20a and 20b can be absorbed and reduced by the buffer member 33.

[0040] Further, as a further different modification, for example, a sheet-like buffer member that also has an inertia material force such as rubber is attached to both side edges of the bracket 15, and the bracket 15 is stopped via the buffer member. It is also possible to adopt a configuration in which it abuts against 20a, 20b. In this case as well, the shock and noise when the bracket 15 abuts against the stoppers 20a, 20b can be absorbed and reduced by the buffer member. .

Example 2

6 to 8 show a second embodiment. In this embodiment, the bracket 15 of the toggle spring mechanism 14 is pivotable to the hanger 11 of the landing door 10 via the shaft 16. It is installed. A spring member 22 is stretched between a substantially intermediate portion of the bracket 15 and the lateral beam 4 of the entrance / exit frame 2, and an engagement pin 25 that can be engaged with the engagement groove 17 of the bracket 15 is attached to the lateral beam 4. And

In this embodiment, when the landing door 10 moves in the door closing direction, the bracket 15 abuts on the first stopper 20a by the elastic force of the spring member 22 as shown in FIG. It is held in a stable state that is inclined to

[0043] When the landing door 10 moves in the door closing direction together with the car door 27 and reaches a predetermined position, the engagement groove 17 of the bracket 15 provided in the landing door 10 is fitted into the engagement pin 25 of the cross beam 4. Match.

[0044] As the landing door 10 further moves in the door closing direction, the engagement pin 25 relatively moves along the engagement groove 17, and as shown in FIG. It rotates counterclockwise around the shaft 16 against 22 inertial forces.

[0045] Then, when the bracket 15 is rotated to a position slightly exceeding the neutral position extending in the substantially vertical direction, that is, the landing door 10 reaches a position at a certain distance on the front side of the door closing position S. At that time, the engagement mechanism 28 is activated by the operation, and the engagement between the landing door 10 and the car door 27 is released.

[0046] The force that interrupts the transmission of the driving force from the car door 27 to the landing door 10 due to the release of this engagement. At this time, since the bracket 15 exceeds the neutral position, the direction in which the elastic force of the spring member 22 acts Reverses and acts as a force that rotates the bracket 15 counterclockwise, that is, a force that moves the landing door 10 in the door closing direction, and the landing door 10 moves accurately to the door closing position S to be sure. A close is achieved.

[0047] Thus, also in this embodiment, the landing door 10 approaches to just before the door closing position S. When the engagement between the landing door 10 and the car door 27 is released, the elastic force of the spring member 22 is applied to the landing door 10, and thus the closer force that moves the landing door 10 in the door closing direction is strengthened. It is possible to achieve a complete closing by accurately moving the landing door 10 to the door closing position S.

[0048] When the landing door 10 reaches the door closing position S, the bracket 15 is held in a stable state in which the bracket 15 contacts the second stopper 20b and is inclined obliquely upward to the left.

When the landing door 10 moves in the door opening direction as well, the bracket 15 first rotates clockwise around the shaft 16 against the elastic force of the spring member 22 according to the movement. When the landing door 10 moves to a certain distance, the bracket 15 exceeds the neutral position, the direction of the elastic force of the spring member 22 is reversed, and the bracket 15 works as a force for rotating the bracket 15 clockwise.

[0050] When the landing door 10 further moves in the door opening direction, the engagement pin 25 is detached from the engagement groove 17 of the bracket 15, and the bracket 15 comes into contact with the first stopper 22a by the elastic force of the spring member 22. It is held in a stable state inclined obliquely upward.

[0051] Also in the second embodiment, as shown as a modified example in Fig. 9, a buffer member 33 that also has an inertia material force such as rubber is attached to the outer periphery of each stopper 20a, 20b with which the bracket 15 abuts. It is possible.

According to such a configuration, the shock and noise when the bracket 15 comes into contact with the stoppers 20a and 20b can be absorbed and reduced by the buffer member 33.

[0052] Further, as a further different modification, for example, a sheet-like buffer member that also has an inertia material force such as rubber is attached to both side edges of the bracket 15, and the bracket 15 is brought into contact with the stoppers 20a and 20b via the buffer member In this case, the shock and noise when the bracket 15 comes into contact with the stoppers 20a and 20b can be absorbed and reduced by the buffer member.

[0053] In each of the above-described embodiments, a single door type door device that opens and closes the entrance of the elevator platform by moving one landing door in the left-right direction is used. However, the two landing doors are connected to each other. The doors are of the double-opening type that opens and closes the doorway symmetrically, or multiple landing doors are lined up in front and back, and each landing door is in the same direction on the left and right The present invention can be similarly applied even to a multi-speed door device that opens and closes an entrance by moving at different speeds.

[0054] However, the double door type or multi-speed door device described above has a structure in which the remaining landing doors move in conjunction with one landing door. The toggle spring mechanism of this invention should be incorporated into the door!

Industrial applicability

[0055] According to the present invention, when the landing door is closed without strengthening the power of the closer, the landing door is reliably moved to a predetermined door closing position to achieve complete closing. Is possible.

Claims

The scope of the claims

[1] A landing door that opens and closes the entrance of the elevator landing,

A car door that opens and closes the entrance of the car

With

The force door is driven by a driving device. When the door is opened, when the car door moves by a certain distance in the door opening direction from the door closing position, the force door is engaged with the landing door through an engagement mechanism. In this case, the landing door moves integrally with the car door in this door opening direction, and when the door is closed, the car door and the landing door that engage each other move in the door closing direction. When the car door and the landing door approach a certain distance with respect to the door closing position, the engagement by the engagement mechanism is released by the operation, and the force door force is transmitted to the landing door. The elevator door device is blocked

When the door is closed, the force door and the landing door approach the door closing position by a certain distance, and immediately before the engagement between the car door and the landing door is released, the landing door is engaged with the landing door. An elevator door device including a toggle spring mechanism that elastically presses the door in the door closing direction.

[2] The toggle spring mechanism is

A bracket rotatably attached to an entrance / exit frame provided so as to surround the entrance / exit of the elevator,

Connected to this bracket, when the bracket rotates to one side with the neutral position as a boundary, the bracket is elastically biased in the direction of rotation on one side, and to the other side when rotated to the other side A spring member that biases inertially in the side rotation direction;

With

The landing door is provided with an engaging member engageable with the bracket, and when the car door and the landing door move in the door closing direction and approach the door closing position, the landing door is moved to the engaging member. The bracket is rotated beyond the neutral position by the movement of the car door and the landing door moving in the door closing direction, and the platform is moved by the spring member in response to the rotation. The elevator door device according to claim 1, wherein the door is inertially pressed in a door closing direction.

[3] The toggle spring mechanism is

A bracket rotatably attached to the landing door;

With

Engagement members that can be engaged with the bracket are provided in the entrance / exit frame provided to surround the entrance / exit of the elevator, and when the force door and the landing door move in the door closing direction and approach the door closing position. Further, the bracket of the landing door is engaged with the engaging member, and the bracket door is rotated beyond the neutral position by the movement of the force door and the landing door in the door closing direction. The elevator door device according to claim 1, wherein the landing door is inertially pressed in the door closing direction by the spring member in accordance with the rotation.

[4] The elevator door device according to [2] or [3], wherein the toggle spring mechanism is provided with a buffer member that reduces an impact when the bracket is rotated.