JP2009155033A - Elevator door device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator door device capable of ensuring safety and reducing costs by surely closing an elevator door while reducing the number of required parts and using a simple construction when the movement of the elevator door concerning open and close is not controlled. <P>SOLUTION: The elevator door device comprises the elevator door 2, rollers 4 which are equipped on a door hanger 3 lying at an upper part of the elevator door 2 and move the elevator door 2, a roller guide 5 with which the rollers 4 contact and move in opening and closing the elevator door 2, and a door guide shoe 7 which is provided at a lower part of the elevator door 2 and moves under guidance of a groove 6 provided on a doorsill in opening and closing the elevator door 2, wherein the roller guide 5 is provided at a slant so that an end lying on a door stop side is situated higher than the other end lying on a door pocket side. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an elevator door device.

  A general elevator door device is provided in an elevator door, a door hanger located above the elevator door, a roller that moves the elevator door, a roller guide that moves in contact with the roller when the elevator door is opened and closed, A door guide shoe is provided at a lower portion of the elevator door and moves while being guided by a groove provided in the sill when the elevator door is opened and closed (see Patent Document 1).

  This elevator door is in a closed state except when it is interlocked with the car, or when the movement relating to its opening and closing is artificially controlled for some reason, for example, when an operator particularly opens during maintenance. . This is to prevent accidents such as falling to the hoistway. Therefore, for example, even if the elevator door is opened by a person's hand, it is naturally closed unless the state where the elevator door is opened artificially, such as biting a stopper or the like.

  As the configuration, for example, a configuration as shown in FIG. 3 is adopted. The elevator door apparatus 100 shown in FIG. 3 includes an elevator door 101, a door hanger 102, a roller 103, a roller guide 104, and a door guide shoe 106 provided in a sill groove 105. In FIG. 3, two double-open elevator doors will be described with an example in which only one side is displayed.

  The elevator door represented by the solid line in FIG. 3 shows an opened state. On the other hand, an elevator door indicated by a broken line indicates a position in a closed state. Therefore, the elevator door shown in FIG. 3 opens to the right. A door hanger 102 is fixed to the upper part of the elevator door 101. The door hanger 102 is provided with a roller 103 and is placed on a roller guide 104. By moving the roller 103 along the roller guide 104, the elevator door 101 can move in the direction of the arrow shown in FIG. A door guide shoe 106 provided at the lower part of the elevator door 101 is fitted in the groove 105 of the sill to guide the elevator door 101 as it moves.

  Further, the door hanger 102 is provided with a reel type spring 107, and the reel connecting wire 108 having one end fixed to the reel type spring 107 is fixed to the three-way frame 109. Therefore, when the elevator door 101 is opened, the reel connecting wire 108 is extended. However, the elevator door 101 is always in a closing direction (that is, toward the left side in FIG. 3) due to the force that the reel spring 107 tries to rewind the reel connecting wire 108. By adopting such a configuration, unless the elevator door 101 is opened by applying some force, the elevator door tries to maintain a naturally closed state.

Moreover, the structure as shown in FIG. 4 is also adopted. In the elevator door device 110 shown in FIG. 4, one end of the wire 111 is fixed to the door hanger 102 and the other end is connected to the weight 112 in order to keep the elevator door 101 closed. With this structure, the weight 112 is pulled and lifted when the elevator door 101 is opened. However, since the weight 112 is always subjected to gravity, the elevator 112 is caused by the force that the weight 112 tends to fall down. The door 101 is always in a state where a force is applied in a closing direction (that is, toward the left side in FIG. 4). By adopting such a configuration, unless the elevator door 101 is opened by applying some force, the elevator door tries to maintain a naturally closed state.
Japanese Patent Laid-Open No. 2004-238094

  However, in the elevator door device having the above-described configuration including the configuration described in Patent Document 1, a configuration for always closing the elevator door is required. That is, the reel type spring 107, the weight 112, and the wire connecting the elevator spring 101 and the reel type spring 107. Although it is essential for safety to keep the elevator door closed, if the elevator is equipped with a configuration that can be used only to close the elevator door, it will not only cost the configuration but also break down, etc. , It can also cause another cost increase.

  The present invention has been made to solve the above-described problems, and the object of the present invention is to reliably reduce the number of necessary parts and adopt a simple configuration when the movement related to opening and closing of the elevator door is not controlled. It is providing the elevator door apparatus which can aim at ensuring of safety | security and reduction of cost by closing an elevator door in this.

  A first feature according to an embodiment of the present invention is that, in an elevator door device, an elevator door, a door hanger located at an upper part of the elevator door, a roller for moving the elevator door, and the opening and closing of the elevator door are provided. A roller guide that moves in contact with the roller, and a door guide shoe that is provided at a lower portion of the elevator door and moves by being guided by a groove provided in the sill when the elevator door is opened and closed. It is inclined and provided so that the other end located on the door pocket side is located higher than the one end located on the side.

  A second feature according to the embodiment of the present invention is that, in an elevator door device, an elevator door, a door hanger located at an upper part of the elevator door, a roller for moving the elevator door, and the opening and closing of the elevator door are provided. A roller guide that moves in contact with the roller, a pulley that is provided coaxially with the roller, rotates in synchronization with the rotation of the roller and suspends the elevator door, and is connected to the pulley and the elevator door, and moves when the elevator door is opened and closed. A rope that is wound and pulled out by a pulley as the roller rotates, and a door guide shoe that is provided at the lower part of the elevator door and that is guided by a groove provided in the sill when the elevator door is opened and closed. Prepare.

  According to the present invention, when movement related to opening and closing of an elevator door is not controlled, safety is ensured and cost is reduced by reliably closing the elevator door while adopting a simple configuration while reducing the number of necessary parts. It is possible to provide an elevator door device that can reduce the amount of the battery.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(First embodiment)
The elevator door apparatus 1 which concerns on the 1st Embodiment of this invention is demonstrated using FIG.

  FIG. 1 is a schematic diagram simply showing the overall configuration of an elevator door apparatus 1 according to a first embodiment of the present invention. FIG. 1 is a view of an elevator door of a landing provided on each floor as viewed from the back side, that is, from the car side toward the floor. In addition, as with the elevator door shown in FIG. 3 or 4, only one side of the two double-open elevator doors is displayed. The elevator door 2 opens and closes in the directions of arrows X and Y shown in FIG. 1, but moves in the direction of arrow X when opened, and moves in the direction of arrow Y when closed.

  A door hanger 3 is fixed to the upper part of the elevator door 2. The door hanger 3 is provided with a roller 4 for moving the elevator door 2. Although the number of the rollers 4 may be one or more, two rollers 4 are provided in FIG. The roller 4 is placed on a roller guide 5 that the roller 4 contacts and moves when the elevator door 2 is opened and closed. As will be described later, the roller guide 5 is provided so as to be inclined such that the other end 5b located on the door pocket side is located higher than the one end 5a located on the door stop side.

  On the other hand, a door guide shoe 7 that is guided and moved by a groove 6 provided in the sill when the elevator door 2 is opened and closed is provided below the elevator door 2. The number of the door guide shoes 7 or the position where the door guide shoes 7 are provided can be arbitrarily set. When the elevator door 2 is opened and closed, the elevator door 2 is smoothly opened and closed by moving without moving through the groove 6 in which the door guide shoe 7 is fitted.

  The door hanger 3, the roller 4, and the roller guide 5 are all housed in the three-way frame 8, so that the elevator user does not see them.

  The roller guide 5 is inclined so as to gradually increase its position from the door stop side toward the door pocket side. That is, when the horizontal imaginary line A is drawn at the position of the one end 5a of the roller guide 5 as a reference, the position of the other end 5b is higher by the height H1. Accordingly, the roller 4 provided on the door hanger 3 gradually moves up the roller guide 5. The elevator door 2 fixed to the door hanger 3 goes up the roller guide 5 on which the roller 4 is inclined as the elevator door 2 opens from the closed state (moves toward the door pocket side). Therefore, it gradually rises obliquely upward in the moving direction.

  In other words, as the elevator door 2 opens, the height of the elevator door 2 gradually increases from the closed state, so that the potential energy of the elevator door 2 is gradually stored. Since the roller guide 5 in the first embodiment of the present invention is provided so as to be lowered from the door pocket side toward the door stop side, the elevator door 2 is provided by some means such as biting a stopper. If the roller is not kept open, the roller 4 rolls along the roller guide 5 due to the weight of the elevator door 2 (by the gravity applied to the elevator door 2) (the potential energy of the elevator door 2 is converted into kinetic energy). The elevator door 2 closes naturally.

  Here, the inclination angle (height H1) of the roller guide 5 is that the door guide shoe 7 which moves in the groove 6 when the elevator door 2 moves to the door pocket side and fully opens is detached from the sill. It is necessary to set the height so that it does not stray. That is, when the height at which the door guide shoe 7 is fitted in the groove 6 in the state where the elevator door 2 is closed is h, the value of the height h is larger than the value of the height H1. It is set (height H1 <height h). According to the calculated value obtained by the inventor for an appropriate value of the inclination angle, for example, in the case of a frontage distance of 80 cm, the roller guide 5 is directed 3 to 5 degrees from the door stop side toward the door pocket side, Preferably, the door guide shoe 7 does not come off the groove 6 when installed with an inclination of 4 degrees.

  Thus, in the elevator door apparatus 1, the elevator door 2 is reliably closed only with the structure required for opening and closing of the elevator door 2, without employ | adopting the special structure for closing the opened elevator door 3. FIG. A state can be created. In other words, when the movement related to the opening and closing of the elevator door is not controlled, it is possible to ensure safety and reduce costs by reliably closing the elevator door while adopting a simple configuration while reducing the number of necessary parts. It is possible to provide an elevator door device that can be used.

  In the embodiment of the present invention, the example in which the inclination angle of the roller guide 5 is 3 degrees to 5 degrees as described above has been described. However, the frontage distance, the depth of the sill groove, the number of elevator doors, and the use It goes without saying that the angle can be appropriately changed depending on the number of elevators installed and used.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. Note that, in the second embodiment, the same components as those described in the first embodiment are denoted by the same reference numerals, and the description of the same components is omitted because it is duplicated.

  In the second embodiment as well, the elevator door is lifted to the extent that the door guide shoe does not come off the sill groove, and the potential energy is stored, and this potential energy is converted into kinetic energy when the elevator door is closed. This is similar to the first embodiment in that the elevator door is naturally closed unless the open state is maintained. The second embodiment is different from the first embodiment in a mechanism for lifting the elevator door in order to store this potential energy.

  That is, in the elevator door device 10 according to the second embodiment, a pulley provided coaxially with the roller 4 and rotating in synchronization with the rotation of the roller 4 is used, and is connected to the pulley and the elevator door 2, and the elevator door is used. A mechanism is adopted in which the elevator door 2 is lifted by a rope that is wound around a pulley or pulled out with the rotation of the roller 4 that moves the roller guide 5 when the roller guide 5 is opened and closed.

  FIG. 2 is a view of the elevator doors of the landings provided on each floor as viewed from the back side, that is, from the car side toward the floor. In addition, as with the elevator door shown in FIG. 3 or 4, only one side of the two double-open elevator doors is displayed. The elevator door 2 opens and closes in the directions of arrows X and Y shown in FIG. 2, but moves in the direction of arrow X when opened and in the direction of arrow Y when closed.

  A door hanger 3 is provided above the elevator door 2. The door hanger 3 is provided with a roller 4 for moving the elevator door 2. The number of the rollers 4 may be one or more, but two are provided in FIG. The roller 4 is placed on a roller guide 5 that the roller 4 contacts and moves when the elevator door 2 is opened and closed.

  Each roller 4 is provided with a pulley 11 having the same rotational axis. The pulley 11 rotates as the roller 4 moves by rotating the roller guide 5. An elevator door 2 is suspended from the pulley 11 via a rope 12. That is, the rope 12 has one end connected to the pulley 11 and the other end connected to the upper portion of the elevator door 2. Then, the roller 4 rotates and the pulley 11 rotates in accordance with the rotation, whereby the rope 12 is wound up or pulled out. When the rope 12 is wound up, the elevator door 2 to which the other end is connected is lifted, and when the rope 12 is pulled out, the elevator door 2 to which one end is connected is lowered.

  In the second embodiment, since the elevator door 2 is lifted upward when the elevator door 2 is opened from the door stop side to the door pocket side, that is, in the direction of the arrow X shown in FIG. When 2 is opened, the rope 12 is wound around the pulley 11. FIG. 2 shows a state where the elevator door 2 is lifted upward by winding the rope 12. The material of the rope 12 may be any material as long as the elevator door 2 is suspended and can withstand opening and closing of the elevator door.

  When the rope 12 is wound around the pulley 11, the elevator door 2 is pulled up and stores potential energy. Therefore, unless the elevator door 2 is kept open, for example, when the elevator door 2 is bitten by a stopper, the rope 12 is pulled downward by the weight of the elevator door 2, and the pulley 11 is shown in FIG. It rotates in the direction of arrow B shown in FIG.

  Since the pulley 11 is connected to the roller 4 coaxially, if the pulley 11 rotates in the direction of arrow B, the roller 4 also rotates in the same direction. The rotating roller 4 stops when the rope 12 is fully extended by moving the roller guide 5, that is, when the elevator door 2 is closed.

  In the second embodiment, the distance H2 (see FIG. 2) in which the rope 12 is wound up with the rotation of the pulley 11 and the elevator door 2 moves upward is within the groove 6 when the elevator door 2 is fully opened. It is necessary to set the distance so that the door guide shoe 7 that moves is not detached from the threshold. Therefore, if the height at which the door guide shoe 7 is fitted in the groove 6 with the elevator door 2 closed is h, the value of the height h is larger than the value of the height H2. It is set (height H2 <height h). By maintaining such a relationship between the height H2 and the height h, even if the rope 12 is wound around the pulley 11 and the elevator door 2 moves upward, the door guide shoe 7 does not come off the groove 6. And the length of the rope 12, ie, the magnitude | size of the pulley 11 which winds up the rope 12, is determined so that this relationship may be maintained.

  Thus, in the elevator door apparatus 1, the elevator door 2 is reliably closed only with the structure required for opening and closing of the elevator door 2, without employ | adopting the special structure for closing the opened elevator door 3. FIG. A state can be created. In other words, when the movement related to the opening and closing of the elevator door is not controlled, it is possible to ensure safety and reduce costs by reliably closing the elevator door while adopting a simple configuration while reducing the number of necessary parts. It is possible to provide an elevator door device that can be used.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above embodiments. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine the component covering different embodiment suitably.

It is a mimetic diagram showing simply the whole composition of the elevator door device concerning a 1st embodiment of the present invention. It is a schematic diagram which shows simply the whole structure of the elevator door apparatus which concerns on the 2nd Embodiment of this invention. It is a schematic diagram which shows simply the whole structure of the conventional elevator door apparatus. It is a schematic diagram which shows simply the whole structure of the conventional elevator door apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Elevator door apparatus 2 Elevator door 3 Door hanger 4 Roller 5 Roller guide 6 Groove 7 Door guide shoe 8 Three-way frame A Horizontal virtual line H1 Height X Elevator door opening / closing direction (open)
Y elevator door opening and closing direction (closed)

Claims (4)

Elevator doors,
A roller provided on a door hanger located at an upper part of the elevator door; and a roller for moving the elevator door;
A roller guide that moves in contact with the roller when the elevator door is opened and closed;
A door guide shoe that is provided at a lower portion of the elevator door and moves while being guided by a groove provided in a sill when the elevator door is opened and closed;
The elevator door device characterized in that the roller guide is provided so as to be inclined such that the other end located on the door pocket side is located higher than the one end located on the door contact side.   The inclination of the roller guide is set so that the height difference between the other end and the one end is smaller than the depth of the door guide shoe fitted in the groove when the elevator door is closed. The elevator door device according to claim 1. Elevator doors,
A roller provided on a door hanger located at an upper part of the elevator door; and a roller for moving the elevator door;
A roller guide that moves in contact with the roller when the elevator door is opened and closed;
A pulley provided coaxially with the roller and rotating in synchronization with the rotation of the roller and hanging the elevator door;
A rope connected to the pulley and the elevator door and wound around or pulled out by the pulley as the roller rotates to move the roller guide when the elevator door is opened and closed.
A door guide shoe that is provided at a lower portion of the elevator door and moves while being guided by a groove provided in a sill when the elevator door is opened and closed;
An elevator door device comprising:   The height at which the elevator door rises as the rope is wound around the pulley is set to be smaller than the depth of the door guide shoe fitted in the groove when the elevator door is closed. The elevator door apparatus according to claim 3.

Images