JP2004217338A - Door device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce a space occupied by an elevator door device. <P>SOLUTION: When a door motor 7 is driven, a roller 9 rolls along a door rail 2 and a left door 10 self-travels by the driving force of the door motor 7. Then, a belt 4 rotates through the left door 10 and a right door 16 moves to the opposite direction against the left door 10. In this configuration, the door motor 7 need not be placed on the upper surface of a hanger case 1. Accordingly, the size of the door device becomes relatively small in height and the occupied space is reduced. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a double door type elevator door apparatus for opening and closing a car entrance.
[0002]
[Prior art]
A conventional configuration of the door device will be described with reference to FIG. A left pulley 151 and a right pulley 152 are mounted on the base 150, and a belt 153 is mounted between the left pulley 151 and the right pulley 152. A left door 154 and a right door 155 are connected to a lower side and an upper side of the belt 153, and the entrance and exit of the car are based on the fact that the left door 154 and the right door 155 move in opposite directions when the belt 153 rotates. Open and close. In the case of this configuration, the door motor 156 is fixed to the upper surface of the base 150, and the belt 153 is rotated based on transmitting the torque of the door motor 156 from the motor side pulley 157 to the large diameter portion 159 of the right pulley 152 through the belt 158. Operating.
[0003]
[Patent Document 1]
JP-A-9-290985
[0004]
[Problems to be solved by the invention]
In the case of the above-described conventional configuration, since the door motor 156 is mounted on the upper surface of the base 150, a large installation space for the door device in the height direction is required.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an elevator door device that can reduce the installation space.
[0005]
[Means for Solving the Problems]
In each of the first to tenth aspects of the present invention, the drive source can be installed at a portion different from the upper surface of the base based on devising a moving mechanism that moves the doors in opposite directions. According to each of the inventions according to claims 1 to 10, since the extra protrusion on the upper surface of the base can be eliminated, the height of the door device is relatively small, and the installation space of the door device is relatively small. Reduction.
[0006]
<About the invention according to claims 1 and 2>
In each of the inventions according to claims 1 and 2, the door is self-propelled by the driving force of the driving source, and the self-propelled movement of the door moves the door by the driving force of the driving source mechanically integrated with the door. Is called.
According to the first aspect of the invention, one of the doors is caused to move by itself, and the other door is moved in the opposite direction by the self-propelled force of the one door.
The invention according to claim 2 is that both doors are independently driven.
[0007]
<About the invention according to claims 3 and 4>
Each of the inventions according to claims 3 to 4 makes the door self-propelled by the driving force of the door motor, and more specifically, based on rolling a rolling member provided on a rotating shaft of the door motor along the rail. Self-propelled door. The number of the door motors may be one for one door, or may be plural. Further, the type of the door motor is preferably a permanent magnet motor in terms of control performance, and the permanent magnet motor has a configuration in which stators are arranged on both the inner and outer peripheral portions of the rotor to improve the self-propelling force of the door. It is preferred in terms of.
The door motor should be built in the door. The term “built-in” is not a term that simply refers to housing the door motor on the door side, but also includes a case where components are shared between the door side and the door motor, for example, a stator of the door motor is also used as a door hanger. . Further, it is preferable to transmit the rotational force of the door motor to the rolling member through a mechanical speed reduction mechanism, and it is preferable that the speed reduction mechanism be housed inside the door motor in terms of space.
[0008]
<About the invention according to claim 5>
The invention according to claim 5 is to move both doors connected to both sides of the winding member in the opposite direction based on rotating the elliptical winding member. It is characterized in that a rotatable supporting member is directly driven by a door motor. The direct drive refers to a mode in which the rotation shaft of the rotating member is driven by the door motor, and does not include a mode in which a rotating force is applied to the rotating member itself. In the case of this configuration, the rotational force of the door motor may be transmitted to the rotating shaft of the rotating member through the reduction mechanism. The ratio between the outer diameter of the door motor and the outer diameter of the rotating member is preferably set to “1: 0.25 to 0.4”.
[0009]
<About the invention according to claim 6>
In the invention according to claim 6, both doors are opened and closed by a winding mechanism. Specifically, based on the fact that the two cord members are wound in the opposite directions by the driving force of the driving source, the doors connected to the two cord members are moved in the opposite directions. The string member refers to a string-shaped or band-shaped member that can be wound by a winding member. For example, a rope or a wire corresponds to the string member.
[0010]
<About the invention according to claim 7>
The invention according to claim 7 is that both doors are opened and closed by a gear mechanism such as a rack and pinion. Specifically, based on driving both gears in opposite directions by the rotational force of both door motors, the two tooth plates meshed with both gears are linearly moved in the opposite direction, and the two doors connected to both tooth plates are moved. Move in the opposite direction.
[0011]
<About the invention according to claims 8 and 9>
In each of the inventions according to claims 8 and 9, the door is moved by the screwing force of the female screw, and the female screw is screwed in the traveling direction of the screw based on the rotation of the male screw.
In the invention according to claim 8, one door is moved by the screwing force of the female screw, and the other door is moved in the opposite direction by the moving force of the one door.
According to a ninth aspect of the present invention, both doors are moved by the screwing forces of both female screws. Specifically, both female screws are screwed into both male screws having opposite screw directions, and both doors are moved in opposite directions based on driving both male screws by a common door motor.
[0012]
<About the invention according to claim 10>
The invention according to claim 10, wherein a drive force in one direction is transmitted to the two arms in opposite directions based on mechanically disposing the drive source between the two arms, and the two doors are connected to the two arms. Is moved in the opposite direction.
<Other inventions>
In addition, both doors are moved by a cam mechanism. Specifically, based on driving both cam members by a common drive source, the both followers are moved along the cam grooves of both cam members, and both doors connected to both followers are moved in opposite directions. Is what you do.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
<First embodiment>
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. The hanger case 1 shown in FIG. 1 corresponds to a base fixed to the car side of the elevator, and a horizontal door rail 2 extending in the left-right direction is fixed to a lower end of the hanger case 1. A pulley 3 corresponding to a rotating member is rotatably mounted on both left and right end portions of the hanger case 1, and a belt 4 corresponding to a rotating member and a wrapping member is formed between the two pulleys 3 in an oval shape. It is wound.
[0014]
A driven left hanger 6 is fixed to the lower side of the belt 4 via a connection fitting 5. A door motor 7 corresponding to a drive source is fixed to the left hanger 6, and the door motor 7 has a built-in speed reduction mechanism 8 as shown in FIG. The speed reduction mechanism 8 is constituted by a gear mechanism, and an input shaft of the speed reduction mechanism 8 is mechanically connected to a rotation shaft inside the door motor 7. The door motor 7 is a permanent magnet motor, and has a speed sensor (not shown). This speed sensor is composed of a Hall element fixed to the stator of the door motor 7, and outputs a position signal based on detection of a permanent magnet of the rotor.
[0015]
The door motor 7 is electrically connected to an inverter drive (not shown). This inverter drive device mainly consists of a rectifier circuit that converts AC power into DC, an inverter bridge circuit that switches DC output from the rectifier circuit, and a control circuit that controls switching of the inverter bridge circuit. The current speed of the door motor 7 is detected based on the position signal, and the switching frequency of the inverter bridge circuit is adjusted so that the current speed becomes equal to the target speed.
[0016]
FIG. 3 shows the operation contents of the door motor 7 by the inverter driving device, and the vertical axis and the horizontal axis show the rotation speed and the elapsed time. Immediately after the door motor 7 is started, the first acceleration operation is performed, and the first constant speed operation → the second acceleration operation → the second constant speed operation → the first deceleration operation → the third constant speed operation → the second acceleration operation The motor stops after the deceleration operation, and generates the maximum torque during the second acceleration operation.
[0017]
As shown in FIG. 1, a cylindrical roller 9 corresponding to a rolling member is fixed to the output shaft of the reduction mechanism 8 so as not to rotate. The roller 9 is placed on the upper surface of the door rail 2, and when the door motor 7 is driven, the left hanger 6 moves in the left-right direction along the door rail 2 based on the roller 9 rolling on the upper surface of the door rail 2. The belt 4 rotates according to the movement of the left hanger 6.
[0018]
A driven left door 10 is fixed to the left hanger 6, and door shoes 11 are fixed to the lower surface of the left door 10 at left and right ends. A sill 12 is fixed to the car side of the elevator, and a guide groove (not shown) parallel to the door rail 2 is formed in the sill 12. Inside the guide groove, both door shoes 11 of the left door 10 are slidably inserted, and the left door 10 moves in the left-right direction based on the upper end and the lower end being guided by the door rail 2 and the sill 12. .
[0019]
A driven right hanger 14 is fixed to the upper side of the belt 4 via a connection fitting 13, and two hanger rollers 15 are rotatably mounted on the upper end of the right hanger 14. Both hanger rollers 15 are mounted on the upper surface of the door rail 2, and when the door motor 7 is driven, the right hanger 14 moves in the opposite direction to the left hanger 6 in conjunction with the belt 4. A driven right door 16 is fixed to the right hanger 14, and door shoes 11 are fixed to the lower surface of the right door 16 at both left and right ends. The right and left door shoes 11 of the right door 16 are slidably inserted into guide grooves of the sill 12, and the right door 16 moves in the left and right directions based on the fact that the upper end and the lower end are guided by the door rail 2 and the sill 12. Moving. That is, the right door 16 and the left door 10 are each fixed to the pivoting member via a component, but the coupling position of the pivoting member with the right door 16 and the coupling position with the left door 10 are displaced by substantially half a circle. Therefore, each door moves in the opposite direction.
[0020]
Next, the operation of the above configuration will be described. When the left door 10 and the right door 16 are in a closed state in contact with the other party, the entrance of the car is closed. When the door motor 7 is driven in the forward direction in this closed state, the left door 10 moves in the direction of arrow A integrally with the left hanger 6. At this time, the right door 16 moves in the direction of arrow B integrally with the right hanger 14 based on the movement of the upper side of the belt 4 in the direction of arrow B, and the left door 10 and the right door 16 open the car entrance. It becomes an open state.
[0021]
When the door motor 7 is driven in the opposite direction with the left door 10 and the right door 16 open, the left door 10 moves integrally with the left hanger 6 in the direction indicated by the arrow A. At this time, based on the movement of the upper side of the belt 4 in the direction of the arrow B, the right door 16 moves integrally with the right hanger 14 in the direction of the arrow B, and the left door 10 and the right door 16 enter and exit the car. Is closed. Reference numeral 17 in FIG. 1 indicates an opening / closing mechanism of the left door 10 and the right door 16. The opening / closing mechanism 17 has the two pulleys 3 and the belt 4 as components, and transmits the moving force of the left door 10 to the right door 16 in the opposite direction, as is clear from the above description.
[0022]
According to the first embodiment, the door motor 7 is mechanically integrated with the left door 10, and the left door 10 is driven by the driving force of the door motor 7 by itself. Then, the self-propelled force of the left door 10 was transmitted to the right door 16 in the opposite direction through the belt 4, and the left door 10 and the right door 16 were moved in the opposite directions. For this reason, it is not necessary to install the door motor 7 on the upper surface of the hanger case 1, so that the height of the door device is relatively small, and the occupied space is reduced.
[0023]
Further, since one belt 4 is used as a transmission mechanism for transmitting the driving force of the door motor 7, the loss of the driving force between the pulley 3 and the belt 4 can be minimized. For this reason, the transmission efficiency of the driving force of the door motor 7 is improved, and the power consumption is reduced. Moreover, since the acceleration torque of the left door 10 and the right door 16 increases, the responsiveness to the door opening / closing command is improved. Furthermore, the cost is reduced because the number of components of the door device is reduced.
[0024]
<Second embodiment>
Next, a second embodiment of the present invention will be described with reference to FIG. Two door motors 7 arranged in the left-right direction are fixed to the left hanger 6. Each of these door motors 7 is composed of a permanent magnet motor having a built-in speed reduction mechanism 8, and a roller 9 is fixed to the output shaft of each speed reduction mechanism 8 so as not to rotate. Each of these rollers 9 is placed on the upper surface of the door rail 2, and the left door 10 and the right door 16 are moved by the driving forces of the two door motors 7. That is, the right door 16 and the left door 10 are each fixed to the pivoting member via a component, but the coupling position of the pivoting member with the right door 16 and the coupling position with the left door 10 are displaced by substantially half a circle. From, each door moves in the opposite direction.
[0025]
According to the second embodiment, two door motors 7 are used as drive sources of the left door 10. Therefore, the driving force of the left door 10 and the right door 16 is increased, so that the large left door 10 and the right door 16 can be smoothly moved.
In the second embodiment, two door motors 7 are used as the drive source of the left door 10. However, the present invention is not limited to this. For example, three or more door motors 7 may be used.
[0026]
Further, in the first and second embodiments, the left door 10 is self-propelled by one or a plurality of door motors 7. However, the present invention is not limited to this. The left door 10 may be moved in the opposite direction by the self-propelled force of the right door 16 by self-running by the door motors 7.
In the first and second embodiments, the left door 10 or the right door 16 is self-propelled based on rolling the roller 9 along the door rail 2, but the invention is not limited to this. . Hereinafter, a third embodiment of the present invention in which the right door 16 is self-propelled in a mode different from the first and second embodiments will be described with reference to FIG.
[0027]
<Third embodiment>
A left door 10 and a right door 16 are connected to upper and lower sides of the belt 4 via connecting fittings 18 and 19, and two traveling rollers 20 are provided at lower ends of the left door 10 and the right door 16, respectively. It is rotatably mounted.
[0028]
The door motor 7 is fixed to the right door 16, and a pulley 21 is fixed to an output shaft of the door motor 7. Further, a pulley portion 22 having a small diameter is formed on the two traveling rollers 20 of the right door 16. A belt 23 is wound between the two pulley portions 22 and the pulley 21. When the door motor 7 is driven, the two traveling rollers 20 of the right door 16 roll with the rotational force of the belt 23. , The left door 16 moves in the opposite direction based on the fact that the self-propelling force of the right door 16 is transmitted to the left door 10 through the belt 4. That is, the right door 16 and the left door 10 are each fixed to the pivoting member via a component, but the coupling position of the pivoting member with the right door 16 and the coupling position with the left door 10 are displaced by substantially half a circle. Therefore, each door moves in the opposite direction.
[0029]
<Fourth embodiment>
Next, a fourth embodiment of the present invention will be described with reference to FIG. Four door shoes 11 are slidably mounted in the guide grooves of the sill 12. The left door 10 is fixed to the two door shoes 11 on the left, and the right door 16 is fixed to the two door shoes 11 on the right.
[0030]
A hanger 24 is fixed to upper end portions of the left door 10 and the right door 16. The door motor 7 is fixed to each of the hangers 24, and the roller 9 is mounted on the output shaft of each door motor 7. These rollers 9 are mounted on the upper surface of the door rail 2, and the left door 10 and the right door 16 move in the opposite direction based on the rotation of their own door motor 7 in the opposite direction.
According to the fourth embodiment, since the opening / closing mechanism 17 for transmitting the self-propelled force of the left door 10 or the right door 16 to the opposite side is not required, the mechanical configuration is simplified.
In the fourth embodiment, the left door 10 and the right door 16 are self-propelled by one door motor 7. However, the present invention is not limited to this. Is also good.
[0031]
In the first to fourth embodiments, the door motor 7 is mechanically fixed to the left hanger 6 or the like. However, the present invention is not limited to this. For example, the door motor 7 may be incorporated. Hereinafter, a fifth embodiment of the present invention in which a door motor 7 is incorporated in the left hanger 6 will be described with reference to FIG.
[0032]
<Fifth embodiment>
A plurality of teeth portions 30 are integrally formed on the left hanger 6, and a stator coil 31 is mounted on each of the teeth portions 30. A circular dish-shaped motor housing 32 is fixed to the front and rear surfaces of the left hanger 6. An outer ring of a bearing 33 is fixed to both motor housings 32, and a rotating shaft 34 corresponding to an output shaft is fixed to an inner ring of both bearings 33. A roller 9 is non-rotatably fixed to the rear end of the rotating shaft 34, and the roller 9 is placed on the upper surface of the door rail 2.
[0033]
The rotor core 35 is fixed to the rotating shaft 34 in the both motor housings 32, and a plurality of permanent magnets 36 are fixed to the outer peripheral surface of the rotor core 35. Each of these permanent magnets 36 is opposed to the inner peripheral surface of the plurality of teeth 30 via an air gap, and the rotor core 35 is rotated by the magnetic force received by the plurality of permanent magnets 36 from the stator coil 31.
[0034]
<Sixth embodiment>
Next, a sixth embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 8, hangers 37 are fixed to the lower side and the upper side of the belt 4 via connecting fittings 5 and 13. These hangers 37 hold the left door 10 and the right door 16, and the hanger rollers 15 of each hanger 37 are placed on the upper surface of the door rail 2.
[0035]
A door motor 40 is fixed to the right end of the hanger case 1. The door motor 40 is an outer rotor type permanent magnet motor, and has a speed sensor. The door motor 40 is electrically connected to an inverter driving device, and the inverter driving device performs feedback control of the door motor 40 based on an output signal from a speed sensor. Then, the door motor 40 is operated at the speed pattern of FIG. 3 to open and close the left door 10 and the right door 16. Hereinafter, the detailed configuration of the door motor 40 will be described with reference to FIG.
[0036]
A bearing bracket 41 is fixed to the hanger case 1, and a stator core 42 is fixed to the bearing bracket 41. The stator core 42 has a cylindrical connecting portion 43 and a plurality of teeth portions 44 protruding from the connecting portion 43 to the outer peripheral side. The connecting portion 43 is fixed to the outer peripheral surface of the bearing bracket 41 and A stator coil 45 is mounted on 44.
[0037]
The outer race of the bearing 46 is fixed to the inner peripheral surface of the bearing bracket 41 at the front and rear ends. A rotating shaft 47 corresponding to an output shaft is fixed to the inner rings of these bearings 46, and a rotor core 48 is fixed to a front end of the rotating shaft 47. The rotor core 48 has a configuration in which a small-diameter cylindrical pulley portion 49 and a large-diameter cylindrical magnet mounting portion 50 are connected via an annular plate 51. The ratio between “R” and the outer diameter dimension “r” of the pulley portion 49 is set to “1”: “0.25 to 0.4”.
[0038]
A plurality of permanent magnets 52 are fixed to the inner peripheral surface of the magnet mounting portion 50, and each permanent magnet 52 faces the outer peripheral surface of the stator core 42 via an air gap. 8, the right end of the belt 4 is wound around the pulley 49, and the belt 4 is directly driven based on the rotation of the rotation shaft 47 of the door motor 40, and The door 10 and the right door 16 are opened and closed. That is, the right door 16 and the left door 10 are each fixed to the pivoting member via a component, but the coupling position of the pivoting member with the right door 16 and the coupling position with the left door 10 are displaced by substantially half a circle. Therefore, each door moves in the opposite direction. Incidentally, the pulley portion 49 corresponds to a rotating member.
[0039]
According to the sixth embodiment, one of the pulley portions 49 for rotatably supporting the belt 4 is constituted by the rotor of the door motor 40, so that the heavy doors 10 and 16 can be weighed using the compact door motor 40. Can be opened and closed. In addition, since the torque constant of the door motor 40 is improved, the efficiency of the door motor 40 is increased, and the power consumption is reduced.
[0040]
Further, since the torque of the door motor 40 for driving the door of “about 20 kg” is proportional to the diameter of the pulley 49, when the diameter of the pulley 49 is “50 mm”, “about 9 Nm” is required. When the diameter of the pulley portion 49 is “150 mm”, “about 23 Nm” is required. The size of the door motor 40 having the pulley portion 49 is limited, and the ratio of the outer diameter of the door motor 40 to the outer diameter of the pulley portion 49 is set to "1: 0.25 0.4 "is optimal.
[0041]
In the sixth embodiment, the door motor 40 is mounted on the right end of the hanger case 1, and the left and right ends of the belt 4 are mounted on the ordinary pulley 3 and the pulley 49 of the door motor 40. For example, the door motor 40 may be attached to the left end of the hanger case 1, and the left end and the right end of the belt 4 may be attached to the pulley 49 of the door motor 40 and the ordinary pulley 3.
[0042]
<Seventh embodiment>
Next, a seventh embodiment of the present invention will be described with reference to FIG. Door motors 40 are fixed to both left and right ends of the hanger case 1. The belt 4 is wound around the pulley portions 49 of the both door motors 40, and the two pulley portions 49 open and close the left door 10 and the right door 16 based on rotation in the same direction at the same speed. That is, the right door 16 and the left door 10 are each fixed to the pivoting member via a component, but the coupling position of the pivoting member with the right door 16 and the coupling position with the left door 10 are displaced by substantially half a circle. Therefore, each door moves in the opposite direction.
[0043]
According to the seventh embodiment, both pulley portions 49 for rotatably supporting the belt 4 are constituted by the rotor of the door motor 40. For this reason, since the rotational torque of the belt 4 is greatly increased, it is possible to smoothly open and close the heavy left door 10 and the right door 16.
[0044]
<Eighth embodiment>
Next, an eighth embodiment of the present invention will be described with reference to FIG. A door motor 60 corresponding to a drive source is mounted on the right end of the hanger case 1. The door motor 60 is a permanent magnet motor in which a stator is provided on both the inner and outer peripheral portions of the rotor. The details of the door motor 60 are as follows.
[0045]
A motor housing 61 is fixed to the hanger case 1. The motor housing 61 has a configuration in which a small-diameter cylindrical inner core mounting portion 62 and a large-diameter cylindrical outer core mounting portion 63 are connected via an annular plate 64. An inner peripheral stator core 65 is fixed to an outer peripheral surface of the inner peripheral core mounting portion 62, and an inner peripheral stator coil 66 is mounted to a plurality of teeth of the inner peripheral stator core 65.
[0046]
An outer peripheral stator core 67 is fixed to the inner peripheral surface of the outer core mounting portion 63. The outer circumferential side stator core 67 has a smaller axial length than the inner circumferential side stator core 65, and a plurality of teeth portions of the outer circumferential side stator core 67 have a smaller axial length than the inner circumferential side stator coil 66. The outer peripheral side stator coil 68 having a small length dimension in the direction is mounted.
[0047]
The outer ring of the bearing 69 is fixed to the inner peripheral surface of the inner core mounting portion 62 at the front and rear ends. A rotating shaft 70 is fixed to the inner rings of these two bearings 69, and a rotor 71 is fixed to the front end of the rotating shaft 70. The rotor 71 has a small-diameter cylindrical pulley portion 72 and a large-diameter cylindrical magnet mounting portion 73. The right end portion of the belt 4 is wound around the pulley portion 72, and the left end portion of the belt 4. Is wound around the pulley 3. In addition, the pulley part 72 is equivalent to a rotating member.
[0048]
A plurality of inner peripheral permanent magnets 74 and a plurality of outer peripheral permanent magnets 75 are fixed to the magnet mounting portion 73 of the rotor 71 on the inner peripheral surface and the outer peripheral surface. The plurality of inner peripheral permanent magnets 74 and the plurality of outer peripheral permanent magnets 75 are arranged on the outer peripheral surface of the inner peripheral stator core 65 and the inner peripheral surface of the outer peripheral stator core 67 via an air gap. The left door 10 and the right door 16 are opened and closed based on the rotation of the inner permanent magnet 74 and the outer permanent magnet 75 by the magnetic force received from the inner stator coil 66 and the outer stator coil 68.
[0049]
According to the eighth embodiment, as the door motor 60 for rotating the belt 4, a permanent magnet motor that applies a rotating force to the rotor 71 from both the inner circumference and the outer circumference is used. For this reason, since the rotational torque of the belt 4 is greatly increased, it is possible to smoothly open and close the heavy left door 10 and the right door 16.
[0050]
In the eighth embodiment, the door motor 60 is mounted on the right end of the hanger case 1. However, the present invention is not limited to this. For example, the door motor 60 is mounted on the left end of the hanger case 1, The left end and the right end may be attached to the pulley 72 of the door motor 60 and the ordinary pulley 3. Alternatively, the door motor 60 may be attached to both ends of the hanger case 1, and both ends of the belt 4 may be attached to the pulley 72 of the door motor 60.
[0051]
In the sixth to eighth embodiments, the pulley portion 49 and the pulley portion 72 are directly connected to the rotation shaft 47 of the door motor 40 and the rotation shaft 70 of the door motor 60. However, the present invention is not limited to this. The input shaft of the reduction mechanism may be connected to the shaft 47 and the rotating shaft 70, and the pulley 49 and the pulley 72 may be connected to the output shaft of the reduction mechanism.
[0052]
Further, in the first to eighth embodiments, the door self-propelled mechanism and the pulley direct drive mechanism are illustrated as the moving mechanisms of the left door 10 and the right door 16, but the present invention is not limited thereto. The moving mechanisms exemplified in the ninth to fifteenth embodiments may be used. Also in the case of the ninth to fifteenth embodiments, there is no need to install a drive source on the upper surface of the hanger case 1, so that the height of the door device is reduced, and the occupied space is reduced. Hereinafter, ninth to fifteenth embodiments of the present invention will be described.
[0053]
<Ninth embodiment>
Door motors 80 are fixed to both left and right ends of the hanger case 1 as shown in FIG. Each of these door motors 80 is an inner rotor type permanent magnet motor, and a bobbin 81 is fixed to a rotating shaft of both door motors 80 so as not to rotate. Both ends of a rope 82 corresponding to a string member are fixed to both bobbins 81. When the left door motor 80 is driven, the left bobbin 81 moves in the direction of arrow A based on the winding of the rope 82. When the right door motor 80 is driven, the right bobbin 81 moves in the direction opposite to the arrow A based on the winding of the rope 82. The left door 10 is connected to the rope 82 via a connection fitting 13, and the left door 10 moves in the direction of arrow A and the direction of anti-arrow A according to the drive of the left door motor 80 and the right door motor 80. I do. The two door motors 80 constitute a drive source for moving the left door 10.
[0054]
Door motors 83 are fixed to the left and right ends of the hanger case 1 below the door motor 80. Each of these door motors 83 is an inner rotor type permanent magnet motor, and a bobbin 84 is fixed to a rotating shaft of both door motors 83. Both ends of a rope 85 corresponding to a string member are fixed to both bobbins 84. When the right door motor 83 is driven, the right bobbin 84 moves in the direction of arrow B based on the winding of the rope 85. When the left door motor 83 is driven, the left bobbin 84 is moved in the direction opposite to the arrow B based on the winding of the rope 85. The right door 16 is connected to the rope 85 via the connection fitting 5, and the right door 16 moves in the arrow B direction and the counter-arrow B direction according to the driving of the right door motor 83 and the left door motor 83. I do. The two door motors 83 constitute a drive source for moving the right door 16.
[0055]
The two-door motor 80 and the two-door motor 83 are electrically connected to the inverter driving device, and the inverter driving device drives the left and right doors 10 and 16 in opposite directions based on driving control of the two-door motor 80 and both door motors 83. Move and open and close the entrance of the car.
[0056]
In the ninth embodiment, the inner rotor type permanent magnet motor is used as the double door motor 80 and the double door motor 83, but the present invention is not limited to this. For example, an outer rotor type permanent magnet motor may be used. .
Further, in the ninth embodiment, the ropes 82 and 85 are used as the cord members for moving the left door 10 and the right door 16, but the present invention is not limited to this. For example, a wire or a chain may be used. good. In short, a string-shaped or band-shaped member that can be wound by the winding members 81 and 84 may be used.
[0057]
<Tenth embodiment>
As shown in FIG. 13, two door motors 90 composed of permanent magnet motors are fixed to the hanger case 1. A pinion 91 corresponding to a gear is fixed to the rotation shaft of each door motor 90, and a rack 92 corresponding to a tooth plate is engaged with each pinion 91. These two racks 92 are fixed to the left door 10 and the right door 16, and the left door 10 and the right door 16 move in opposite directions based on the rotation of the two door motors 90 in opposite directions. Open and close doorways.
[0058]
<Eleventh embodiment>
As shown in FIG. 14, pulleys 3 are rotatably mounted on both left and right ends of the hanger case 1. A belt 4 is wound around these pulleys 3, and a left door 10 and a right door 16 are connected to upper and lower sides of the belt 4 via connection fittings 13 and 5.
[0059]
A bolt 101 is rotatably mounted on the hanger case 1 via a bearing 100. The bolt 101 corresponds to a male screw, and a nut 102 corresponding to a female screw is screwed to the bolt 101. The nut 102 is fixed to the right door 16. When the bolt 101 rotates, the right door 16 moves integrally with the nut 102, and the left door 10 moves in the opposite direction to the right door 16 via the belt 4.
[0060]
A door motor (not shown) is connected to the bolt 101. This door motor is fixed to the hanger case 1, and moves the left door 10 and the right door 16 in opposite directions based on the forward / reverse rotation of the bolt 101 to open and close the entrance of the car. That is, the right door 16 and the left door 10 are each fixed to the pivoting member via a component, but the coupling position of the pivoting member with the right door 16 and the coupling position with the left door 10 are displaced by substantially half a circle. Therefore, each door moves in the opposite direction.
[0061]
<Twelfth embodiment>
As shown in FIG. 15, a door motor 110 composed of a permanent magnet motor is fixed to the hanger case 1. Bolts 111 and 112 corresponding to male screws are provided on the rotation shaft of the door motor 110 at left and right ends. Has been fixed. These bolts 111 and 112 have screw threads (screw grooves) formed in opposite directions. The left end of the bolt 111 and the right end of the bolt 112 are rotatably mounted on the hanger case 1 via bearings 113. I have.
[0062]
Nuts 114 and 115 corresponding to female threads are screwed into the bolts 111 and 112. The left door 10 and the right door 16 are fixed to the nuts 114 and 115, and the left door 10 and the right door 16 move in opposite directions integrally with the nuts 114 and 115 based on the forward / reverse rotation of the door motor 110. Then open and close the entrance of the basket.
[0063]
<Thirteenth embodiment>
As shown in FIG. 16, a door motor 120 corresponding to a driving source is fixed to the hanger case 1, and a friction roller 121 is fixed to an output shaft of the door motor 120 so as not to rotate. The upper arm 122 and the lower arm 123 are in contact with the friction roller 121 from above and below, and when the door motor 120 is driven, the upper arm 122 and the lower arm 123 move in opposite directions due to the frictional force on the friction roller 121.
[0064]
The upper arm 122 and the lower arm 123 are connected to the left door 10 and the right door 16, and the left door 10 and the right door 16 are integrated with the upper arm 122 and the lower arm 123 based on the forward and reverse rotation of the door motor 120. Move in the opposite direction to open and close the car entrance.
[0065]
Although the friction roller 121 is fixed to the rotation shaft of the door motor 120 in the thirteenth embodiment, the invention is not limited to this. For example, a pinion may be fixed so as not to rotate. In this case, a rack may be fixed to the upper arm 122 and the lower arm 123, and the rack of the upper arm 122 and the rack of the lower arm 123 may be engaged with the pinion from both upper and lower sides.
[0066]
<14th embodiment>
As shown in FIG. 17, a linear motor stator 130 corresponding to a drive source is fixed to the hanger case 1. The stator 130 has a plurality of fixed side coils arranged along the upper side and the lower side, and the moving magnetic field in the opposite direction is applied to the plurality of fixed side coils at the upper side and the plurality of fixed side coils at the lower side. Power is applied to generate.
[0067]
A mover 131 of a linear motor is fixed to the upper arm 122 and the lower arm 123. The mover 131 of the upper arm 122 and the mover 131 of the lower arm 123 have air gaps at the upper side and the lower side of the stator 130. They are arranged to face each other. Each of these movers 131 has a plurality of permanent magnets arranged in the left-right direction, and the left door 10 and the right door 16 of the car move based on the fact that the mover 131 moves in the opposite direction by the magnetic force received from the stator 130. Open and close doorways.
[0068]
<Fifteenth embodiment>
As shown in FIG. 18, a stator 140 of a linear motor corresponding to a driving source is fixed to the hanger case 1. The stator 140 has a plurality of stationary coils arranged in a vertical line, and the mover 141 of the linear motor moves up and down by the magnetic force received from the stator 140.
[0069]
A left arm 142 and a right arm 143 corresponding to cam members are fixed to the mover 141 of the linear motor at the left and right ends. The left arm 142 and the right arm 143 have a straight shape that is inclined downward as the distance from the mover 141 increases, and the left arm 142 and the right arm 143 are formed with a cam groove 144 having a through-hole shape.
[0070]
Straight rails 145 extending in the vertical direction are fixed to both left and right ends of the hanger case 1. The left end of the left arm 142 and the right end of the right arm 143 are slidably engaged with each of the rails 145. When the linear motor is driven, the left arm 142 and the right arm 143 maintain the inclined posture. To move up and down.
[0071]
A cam follower 146 is inserted into the cam groove 144 of the left arm 142 and the cam groove 144 of the right arm 143. Each of the cam followers 146 corresponds to a follower, and is constituted by a rotatable driven roller that comes into contact with the upper and lower surfaces in the cam groove 144. The left and right doors 10 and 16 are connected to the cam followers 146 via connection fittings 147. When the linear motor is driven, the cam followers 146 of the left door 10 and the cam followers 146 of the right door 16 are connected to the cam grooves 144 of the left arm 142. Based on the rolling along the cam groove 144 of the right arm 143, the left door 10 and the right door 16 move in opposite directions to open and close the entrance of the car.
[Brief description of the drawings]
FIG. 1 shows a first embodiment of the present invention (a front view showing a door device).
FIG. 2A is a front view showing a door hanger and a door motor, and FIG. 2B is a diagram showing the door hanger and the door motor from an arrow X direction.
FIG. 3 is a diagram showing operation contents of a door motor.
FIG. 4 is a view corresponding to FIG. 1, showing a second embodiment of the present invention;
FIG. 5 is a view corresponding to FIG. 1 showing a third embodiment of the present invention.
FIG. 6 is a view corresponding to FIG. 1, showing a fourth embodiment of the present invention;
FIG. 7 is a view showing a fifth embodiment of the present invention (a cross-sectional view showing an internal configuration of a door motor).
FIG. 8 is a view corresponding to FIG. 1, showing a sixth embodiment of the present invention.
FIG. 9 is a diagram corresponding to FIG. 7;
FIG. 10 is a view corresponding to FIG. 1, showing a seventh embodiment of the present invention;
FIG. 11 is a view corresponding to FIG. 7, showing an eighth embodiment of the present invention.
FIG. 12 is a view corresponding to FIG. 1, showing a ninth embodiment of the present invention;
FIG. 13 is a view corresponding to FIG. 1, showing a tenth embodiment of the present invention.
FIG. 14 is a view corresponding to FIG. 1, showing an eleventh embodiment of the present invention;
FIG. 15 is a view corresponding to FIG. 1, showing a twelfth embodiment of the present invention.
FIG. 16 is a view corresponding to FIG. 1, showing a thirteenth embodiment of the present invention;
FIG. 17 is a view corresponding to FIG. 1, showing a fourteenth embodiment of the present invention;
FIG. 18 is a view corresponding to FIG. 1, showing a fifteenth embodiment of the present invention;
FIG. 19 is a diagram corresponding to FIG. 1 showing a conventional example.
[Explanation of symbols]
2 is a door rail (rail), 3 is a pulley (rotating member), 4 is a belt (rotating member, winding member), 7 is a door motor (drive source), 9 is a roller (rolling member), 10 is a left door ( Door), 16 is a right door (door), 17 is an opening / closing mechanism, 40 is a door motor (drive source), 47 is a rotating shaft, 49 is a pulley portion (rotating member), 60 is a door motor (drive source), and 70 is a rotating shaft. , 72 is a pulley portion (rotating member), 82 is a rope (string member), 85 is a rope (string member), 90 is a door motor, 91 is a pinion (gear), 92 is a rack (tooth plate), 101 is a bolt (male screw). ), 102 are nuts (female thread), 110 is a door motor, 111 is a bolt (male thread), 112 is a bolt (male thread), 114 is a nut (female thread), 115 is a nut (female thread), 120 is a door motor (drive source), 122 Is upper (Arms), 123 lower arm (arm), 142 left arm (cam member), 143 the right arm (cam member), 144 cam groove, 146 indicates a cam follower (follower).

Claims (10)

A pair of doors provided on the car side of the elevator and opening and closing the entrance of the car based on moving in the opposite direction to the other side,
A drive source mechanically integrated with one of the pair of doors, and a self-propelled one of the doors;
An opening / closing mechanism for moving the other door in a direction opposite to the one door based on transmitting a moving force of the one door to the other door in a reverse direction. Elevator door device. A pair of doors provided on the car side of the elevator and opening and closing the entrance of the car based on moving in the opposite direction to the other side,
An elevator door device, comprising: a pair of drive sources that are mechanically integrated with the pair of doors and that cause the pair of doors to run in opposite directions. An elliptical rotating member provided on the car side of the elevator,
A pair of doors that are provided on both sides of the rotating member and move in the opposite direction to the other side based on the rotation of the rotating member to open and close the entrance of the car,
A rail extending along a moving direction of the pair of doors,
A door motor mechanically integrated with one of the pair of doors,
A rolling member provided on a rotating shaft of the door motor, the rolling member being configured to rotate the rotating member via the one door based on rolling along the rail. Door equipment. A pair of doors provided on the car side of the elevator and opening and closing the entrance of the car based on moving in the opposite direction to the other side,
A rail extending along a moving direction of the pair of doors,
A pair of door motors mechanically integrated with the pair of doors,
An elevator provided with a pair of rolling members provided on the rotating shafts of the pair of door motors and moving the pair of doors in opposite directions based on rolling along the rails. Door device. A pair of rotating members provided on the car side of the elevator,
An oval-shaped winding member wound between the pair of rotating members,
A door motor that rotates the winding member based on directly driving at least one rotation shaft of the pair of rotation members,
A pair of doors provided on both sides of the winding member, the opening and closing of the entrance and exit of the car by moving in the opposite direction to the other side based on the rotation of the winding member. Elevator door device. A pair of string members provided on the car side of the elevator,
A pair of drive sources that move in the opposite direction based on winding the pair of cord members,
A door apparatus for an elevator, comprising: a pair of doors that open and close the entrance of the car based on moving in opposite directions together with the pair of string members. A pair of gears provided on the car side of the elevator,
A pair of tooth plates meshing with the pair of gears,
A pair of door motors that operate to move the pair of tooth plates in opposite directions based on rotating the pair of gears in opposite directions,
An elevator door device comprising: a pair of doors for opening and closing a car entrance based on moving in opposite directions together with the pair of tooth plates. A pair of doors provided on the car side of the elevator and opening and closing the entrance of the car based on moving in the opposite direction to the other side,
A female screw provided on one of the pair of doors,
A male screw into which the female screw is screwed,
A door motor that moves the one door together with the female screw based on rotating the male screw,
An opening / closing mechanism for moving the other door in a direction opposite to the one door based on transmitting a moving force of the one door to the other door in a reverse direction. Elevator door device. A pair of doors provided on the car side of the elevator and opening and closing the entrance of the car based on moving in the opposite direction to the other side,
A pair of female screws provided on the pair of doors,
The pair of female screws are screwed together, and a pair of male screws having opposite screw directions,
An elevator door device, comprising: a door motor that moves the pair of doors in the opposite direction together with the pair of female screws based on rotating the pair of male screws in the same direction. A pair of arms provided on the car side of the elevator,
A drive source that is provided between the pair of arms and that operates to move the pair of arms in opposite directions;
An elevator door device comprising: a pair of doors for opening and closing a car entrance based on moving in opposite directions together with the pair of arms.

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