CN113911867B - Elevator door and elevator - Google Patents
Elevator door and elevator Download PDFInfo
- Publication number
- CN113911867B CN113911867B CN202010645303.4A CN202010645303A CN113911867B CN 113911867 B CN113911867 B CN 113911867B CN 202010645303 A CN202010645303 A CN 202010645303A CN 113911867 B CN113911867 B CN 113911867B
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- door
- fixed
- closing direction
- elevator
- locking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0043—Devices enhancing safety during maintenance
- B66B5/005—Safety of maintenance personnel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/06—Door or gate operation of sliding doors
- B66B13/08—Door or gate operation of sliding doors guided for horizontal movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
- B66B13/143—Control systems or devices electrical
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
The present invention relates to an elevator door and an elevator. This elevator door is equipped with: a locking device having an upper lock side hook member and a fixed hook member that engages with the upper lock side hook member at the time of locking; and a locking detection device that detects whether or not the locking device is in a locked state, the locking detection device including a movable portion attached to the upper lock side hook member, the movable portion extending in a door opening and closing direction in which the elevator door is opened and closed, and a fixed portion provided at a position opposite to the movable portion, the movable portion having a convex cross section perpendicular to the door opening and closing direction, the fixed portion including: a fixed contact point which is contacted with the lower end of the movable part during locking; and a fixed cover portion that covers the fixed contact, the fixed cover portion being provided in parallel with the movable portion along the door opening and closing direction and having a concave shape in a cross section perpendicular to the door opening and closing direction.
Description
Technical Field
The invention relates to an elevator, in particular to an elevator door.
Background
Conventionally, elevator doors and landing doors are provided with detection devices for detecting opening and closing of the doors, and if the doors are detected to be opened, the operation of the elevator is stopped and measures are taken to ensure safety of passengers.
Such a detection device detects the opening and closing of the door through a circuit, and there is a danger of electric shock when a maintenance worker touches the detection device.
International publication No. 2017/179197 discloses a contact protection cover used for a locking device of a landing door to prevent a maintenance worker from getting an electric shock.
Disclosure of Invention
The contact protection cover can protect a maintenance worker from electric shock, but has no slidable region in the door opening/closing direction, and cannot be matched with the deviation of the car stop position in the door opening/closing direction.
An object of the present invention is to solve at least one of the above problems and to provide an elevator door that can protect a maintenance worker from electric shock, has a slidable area in the door opening/closing direction, and can accommodate variations in the car stop position in the door opening/closing direction.
In order to solve the above-mentioned technical problem, the elevator door of the present invention comprises: a locking device having an upper lock side hook member and a fixed hook member that engages with the upper lock side hook member at the time of locking; and a locking detection device that detects whether or not the locking device is in a locked state, the locking detection device including a movable portion attached to the upper lock side hook member, the movable portion extending in a door opening and closing direction in which the elevator door is opened and closed, and a fixed portion provided at a position opposite to the movable portion, the movable portion having a convex cross section perpendicular to the door opening and closing direction, the fixed portion including: a fixed contact point which is contacted with the lower end of the movable part during locking; and a fixed cover portion that covers the fixed contact, the fixed cover portion being provided in parallel with the movable portion along the door opening and closing direction and having a concave shape in a cross section perpendicular to the door opening and closing direction.
Preferably, the movable portion has a flat top portion and a lower convex portion protruding downward from a lower end of the flat top portion, and a cross section of the movable portion perpendicular to the door opening and closing direction is substantially T-shaped.
Preferably, the fixed cover portion has a front wall portion covering the front of the fixed contact, a rear wall portion covering the rear of the fixed contact, and a bottom portion to which the fixed contact is attached, and a cross section of the fixed cover portion perpendicular to the door opening and closing direction is substantially U-shaped.
The invention also provides an elevator, which is provided with the elevator door.
The invention provides an elevator door, which can protect maintenance personnel from electric shock, has a slidable area in the opening and closing direction of the door, and can match the deviation of the stop position of a car in the opening and closing direction of the door.
Problems, structures, and effects other than those described above will be apparent from the following description of the embodiments.
Drawings
Fig. 1 is a front view schematically showing a locking device and a locking detection device according to an embodiment of the present invention.
Fig. 2 is a front view schematically showing a lock detection device according to an embodiment of the present invention.
Fig. 3 is a sectional view schematically showing a lock detection device according to an embodiment of the present invention.
Fig. 4 is a sectional view schematically showing a lock detection device according to an embodiment of the present invention.
Fig. 5 is a front view schematically showing a locking device and a locking detection device according to an embodiment of the present invention.
Fig. 6 is a diagram schematically showing an example of an elevator door to which the locking device and the locking detection device of the present invention are applied.
Fig. 7 is an enlarged view schematically showing a partial structure of the elevator door shown in fig. 6.
Fig. 8 is a view schematically showing a lock release state of a partial structure of the elevator door shown in fig. 7.
Fig. 9 is a schematic view showing an example of an elevator to which an elevator door according to the present invention is applied.
< notation in the drawing >
1 elevator door; 10 a locking device; 11 locking the side hook member; 12 fixing the hook member; 20 a lock detection device; 21 a movable part; 211 a lower convex part; 212 flat top; 22 a fixing part; 221 a fixed contact; 222 securing the cover portion; 2221 a front wall portion; 2222 a rear wall portion; 2223, a bottom portion; 30. 30a, 30b door leaves; 40a, 40b door hangers; 50 a support plate; 51 a rotating shaft; 52a 1 st link member; 52b a 2 nd link member; 53 a linkage piece; 54 a 1 st stop; 55 a 2 nd stopper; 56 an elastic member; 57 a transmission part; a 60-gate unit; 62 a driving part; 71 a linkage wheel; 100 elevator.
Detailed Description
Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings and examples.
Fig. 1 is a front view schematically showing a locking device and a locking detection device according to an embodiment of the present invention. The elevator door of the invention can be a landing door or a car door. That is, the locking device and the locking detection device of the present invention may be applied to a landing door or a car door. Fig. 1 is a front view from the hoistway side when applied to a landing door, or a front view from the landing side when applied to a car door. The locking device and the locking detection device in fig. 1 are in a locked state.
In fig. 1, X represents an opening and closing direction (horizontal direction, left-right direction) of the elevator door, Y represents a vertical direction (vertical direction), and Z represents a front-rear direction (thickness direction, direction of the observer is front, and reverse direction is rear) (the same applies to the following drawings).
The elevator door is provided with a locking device 10 and a locking detection device 20. The locking device 10 includes an upper lock side hook member 11 and a fixed hook member 12 that engages with the upper lock side hook member 11 at the time of locking.
The upper-lock side hook member 11 has a hook portion 111, a base portion 113, and a connecting portion 112 between the hook portion and the base portion. The hook 111 is positioned above a hook 121 of the fixed hook member 12 described later. As shown in the drawing, in the locked state, the hook portion 111 of the upper lock hook member 11 is engaged with the hook portion 121 of the fixed hook member 12 with a space S therebetween. The interval S varies due to movement (movement) of the upper lock side hook member 11.
The upper lock side hook member 11 is attached to a support plate described later by a rotating shaft 51 penetrating the base 113. The support plate moves in the X direction in conjunction with the opening and closing of the door leaf. As shown in fig. 5, the upper lock side hook member 11 is rotatable counterclockwise about the rotation shaft 51 to disengage from the fixed hook member 12, and the engagement between the both can be released.
The latch-side hook member 11 further has a holder 114, and the holder 114 is fixed to the connecting portion 112 so as to project downward.
The fixed hook member 12 has a hook portion 121 and a base portion 122. The fixed hook member 12 is fixed to the door unit so as not to move in association with the opening and closing of the door leaf.
Fig. 2 is a front view schematically showing a lock detection device according to an embodiment of the present invention, in which a movable portion and a fixed portion are shown separately. Fig. 3 is a cross-sectional view schematically showing a lock detection device according to an embodiment of the present invention, and is a cross-sectional view taken along line AA of fig. 1. Fig. 4 is a cross-sectional view schematically showing a lock detection device according to an embodiment of the present invention, in which a movable portion and a fixed portion are shown separately.
The locking detection device 20 is used to detect a locked state, that is, whether the locking device is in a locked state. As shown in fig. 1 to 4, the locking detection device 20 includes a movable portion 21 and a fixed portion 22.
The movable portion 21 is attached to the upper lock side hook member 11, extends in the opening and closing direction of the elevator door (hereinafter referred to as the "door opening and closing direction"), and has a convex shape in a cross section perpendicular to the door opening and closing direction. The fixed part 22 is provided at a position facing the movable part 21, and includes: a fixed contact 221 that contacts the lower end of the movable portion 21 during locking; and a fixed cover portion 222 that covers the fixed contact 221, the fixed cover portion 222 being disposed in parallel with the movable portion 21 along the door opening and closing direction and having a concave shape in a cross section perpendicular to the door opening and closing direction.
With this configuration, the locking detection device 20 can protect a maintenance worker from electric shock, has a slidable area in the door opening and closing direction, and can accommodate variations in the car stop position in the door opening and closing direction.
First, since the energized fixed contact 221 is covered by the fixed covering portion 222, it is not exposed in either the locked state or the unlocked state (unlocked state), and it is possible to prevent a maintenance worker from getting an electric shock.
Next, the movable portion 21 and the fixed portion 22 are arranged in parallel along the door opening and closing direction, and the movable portion 21 has a cross section perpendicular to the door opening and closing direction in a downwardly convex shape and the fixed portion 22 has a concave shape, and a downward convex portion of the movable portion 21 is capable of being fitted to the concave portion of the fixed portion 22 to be slidable in the door opening and closing direction. In this way, the locking detection device 20 is provided with the slidable area in the door opening and closing direction, and can match the deviation of the car stop position in the door opening and closing direction.
In an elevator, when a car moving up and down stops at a landing, the stop position of the car in the door opening and closing direction cannot be completely the same each time, a deviation occurs, and the interval S between the upper lock side hook member 11 and the fixed hook member 12 varies.
The movable portion 21 and the fixed portion 22 of the lock detection device 20 according to an embodiment of the present invention will be described in detail below with reference to fig. 2 to 4.
The movable portion 21 is attached to the locking-side hook member 11 of the locking device 10 via the bracket 114. Therefore, the movable portion 21 moves (moves) in accordance with the movement (movement) of the upper lock side hook member 11.
The movable portion 21 extends in the door opening and closing direction, and its lower end protrudes downward. The movable portion 21 is integrally formed of, for example, a conductive metal material. For example, the movable portion 21 has a flat top 211 and a lower convex portion 212.
The flat top 211 extends in the door opening and closing direction, and preferably, the length in the door opening and closing direction is greater than the width in the vertical direction. Preferably, the flat top portion 211 has a flat plate shape that is flat in the vertical direction, and the thickness in the front-rear direction is larger than the width in the vertical direction. The upper end of the flat top 211 is fixed to the bracket 114.
The lower protrusion 212 is formed to protrude downward from the lower end of the flat top 211. The lower projection 212 extends in the door opening and closing direction, and preferably has a length in the door opening and closing direction larger than a width in the vertical direction. Preferably, the lower convex portion 212 has a flat plate shape that is flat in the front-rear direction, and the vertical width is larger than the front-rear thickness. The thickness of the lower projection 212 corresponds to and is smaller than an inner distance T between front and rear wall portions of the fixed cover portion 222, which will be described later. The lower projection 212 has a predetermined length in the door opening and closing direction, which is at least longer than the outer pitch U of the pair of fixed contacts 221 described later.
Preferably, as shown in fig. 3 and 4, the movable portion 21 has a substantially T-shaped continuous cross section perpendicular to the door opening and closing direction. That is, the flat top portion 211 and the lower convex portion 212 of the movable portion 21 vertically meet, and the lower convex portion 212 is located at a substantially middle position in the front-rear direction of the lower end of the flat top portion 211. Such a structure enables the movable portion 21 to be more favorably engaged with the fixed portion 22, and the movable portion 21 to be more smoothly slid in the door opening and closing direction.
The movable portion 21 described above is merely an example. Although not shown, the movable portion 21 may have a substantially L-shaped cross section perpendicular to the door opening and closing direction. That is, the flat top portion 211 and the lower convex portion 212 of the movable portion 21 are vertically connected, and the lower convex portion 212 is located at the front end or the rear end position in the front-rear direction of the lower end of the flat top portion 211. The movable portion 21 may have only the lower convex portion 212 without the flat top portion 211.
The fixed portion 22 is fixed to a door unit described later, and is provided at a position facing the movable portion 21 at the time of locking, and the fixed portion 22 does not move in association with opening and closing of the door.
The fixed portion 22 has a pair of fixed contacts 221 provided along the door opening and closing direction. When the pair of fixed contacts 221 are in the energized state and the lower end of the movable portion 21 comes into contact with the fixed contacts, the pair of fixed contacts 221 are closed to connect the detection circuit, thereby detecting the locked state.
Preferably, when contacting the lower end of the movable portion 21, the fixed contact 221 moves downward while maintaining contact with the movable portion 21, and the portion closer to the lower end is recessed in the bottom portion 2223, so that the height thereof is reduced. Thus, the lower projection 212 can be smoothly slid, and damage to the fixed contact can be avoided.
The fixed cover portion 222 has a front wall portion 2221 that covers the front of the fixed contact 221, a rear wall portion 2222 that covers the rear of the fixed contact 221, and a bottom portion 2223 to which the fixed contact 221 is mounted. Preferably, the front and rear wall portions of the fixed cover portion 222 have a shape that is wide at the top and narrow at the bottom, for example, a trapezoid.
The front wall portion 2221 and the rear wall portion 2222 extend in the door opening and closing direction, and have a width in the up-down direction larger than the height of the fixed contacts 221. Preferably, the front wall 2221 and the rear wall 2222 have a length in the door opening and closing direction that is greater than a width in the vertical direction. The front wall portion 2221 and the rear wall portion 2222 are flat in the front-rear direction, and have a width in the vertical direction that is greater than a thickness in the front-rear direction.
Preferably, as shown in fig. 3 and 4, the continuous cross section of the fixed cover portion 222 perpendicular to the opening and closing direction of the door is substantially U-shaped. That is, the fixing cover portion 222 is a gutter-shaped member that is open to the right and left and upward. The inner-side distance T of the groove, that is, the inner-side distance T between the front wall portion 2221 and the rear wall portion 2222, is larger than the front-rear direction thickness (diameter) of the pair of fixed contacts 221, the pair of fixed contacts 221 are housed in the groove along the door opening and closing direction, and the pair of fixed contacts 221 are located more inward than the left and right end portions in the groove. Such a configuration enables the fixed portion 22 to be more favorably fitted to the movable portion 21, and the slidable area in the door opening and closing direction to be more easily secured. Further, the fixed contact 221 is not exposed in either the locked state or the unlocked state, and thus, the maintenance worker can be prevented from getting an electric shock.
The fixed cover portion 222 described above is only an example. Although not shown, the fixed cover portion 222 may be configured to be open only to the left and above, or to the right and above, or to the top.
Fig. 6 is a diagram schematically showing an example of an elevator door to which the locking device and the locking detection device of the present invention are applied. Fig. 7 is an enlarged view schematically showing a partial structure of the elevator door shown in fig. 6, and fig. 8 is a view schematically showing a lock release state of the partial structure. As described above, the elevator door according to the present invention may be a landing door or a car door. As an example, a car door is shown in the drawings, and the following description will be given. Fig. 6 is a front view of the elevator from the landing side, and the elevator door is in a locked state.
As shown in fig. 6, the elevator door 1 includes a pair of doors 30 (30 a, 30 b), and the left door 30a is opened to the left and the right door 30b is opened to the right. A threshold 31 is provided below the door 30. The door 30a and the door 30b are mounted at upper ends thereof with a door hanger 40a and a door hanger 40b, respectively. The moving roller 41 is rotatably attached to the gantry 40a and the gantry 40b. A support plate 50 is fixed to the front side of one door hanger (e.g., the left door hanger 40 a). The door hanger 40a and the door hanger 40b have a connecting portion 42a and a connecting portion 42b extending upward, respectively. The door hanger 40a and the door hanger 40b are connected to a drive belt 63 of a door unit 60 described later through a connecting portion 42a and a connecting portion 42b, respectively.
The support plate 50 has a rotation shaft 51, and the above-described upper-lock side hook member 11 is rotatably mounted to the support plate 50 through the rotation shaft 51. A 1 st link member 52a and a 2 nd link member 52b each having two shaft portions (a 1 st shaft and a 2 nd shaft) are attached to the support plate 50. The 1 st link member 52a and the 2 nd link member 52b are mounted to the support plate 50 through respective 1 st shafts located below. The linkage 53 is mounted to the support plate 50 through the two 2 nd shafts of the 1 st link member 52a and the 2 nd link member 52b located above. The interlocking member 53 has a transmission part 57 at the left side (door opening side) end, the upper lock side hook member 11 has a transmission pin 115 at the base, and the transmission part 57 is in contact with the transmission pin 115. The support plate 50 is further provided with a 1 st stopper 54, a plurality of (e.g., 3) 2 nd stoppers 55, and an elastic member 56. The interlocking roller 71 of the landing door is also shown by a broken line in the figure. The interlocking roller 71 is positioned on the door opening side of the interlocking member 53 so as to face the interlocking member 53 in the front-rear direction before the car is stopped at a landing and the driving portion 62 described later is driven.
The door unit 60 is provided above the door 30, and the fixed hook member 12 and the fixing portion 22 are fixed to the door unit 60. The door unit 60 includes a door guide 61, a driving unit 62, a driving belt 63, and a driven roller 64. The drive belt 63 is circularly moved between the driven roller 64 and the drive roller of the drive section 62, and the upper and lower portions of the drive belt 63 are moved in opposite directions to each other. The lower portion of the drive belt 63 is connected to the connecting portion 42a, and the upper portion of the drive belt 63 is connected to the connecting portion 42b. When the driving unit 62 drives the driving belt 63 to move, the door leaf 30a and the door leaf 30b approach or separate from each other through the connecting portion 42A and the connecting portion 42b, and the elevator door is opened or closed.
As shown in fig. 7, in the locked state, the interlinking member 53 is lifted upward by the 1 st link member 52a and the 2 nd link member 52b. Since the 1 st stopper 54 abuts on the left end portion of the 1 st link member 52a, the 1 st link member 52a and the 2 nd link member 52b are restricted from rotating in the counterclockwise direction. At this time, the 2 nd stopper 55 is located at a position opposite to the right end of the interlocking member 53 with a gap. As described above, the hook portion of the upper lock hook member 11 and the hook portion of the fixed hook member 12 engage with each other with the space S therebetween. The elastic piece 56 applies a force in the locking direction, i.e., downward to the locking side hook member 11.
As shown in fig. 8, when the car stops at a landing and the drive unit 62 is driven to move the door, the interlocking member 53 abuts on the interlocking roller 71. As the door continues to move, the interlocking member 53 is pressed to the right by the interlocking roller 71. This causes the 1 st link member 52a and the 2 nd link member 52b to rotate about the 1 st axis so as to descend downward, and causes the interlinking piece 53 to move downward to the right side. The operation of the interlocking member 53 is transmitted to the upper lock side hook member 11 through the transmission portion 57 and the transmission pin 115. The upper lock side hook member 11 rotates in the unlocking direction, i.e., the direction in which the hook portion faces upward about the rotary shaft 51 against the urging force of the elastic piece 56, and the engagement between the upper lock side hook member 11 and the fixed hook member 12 is released. The movable portion 21 of the lock detection device 20 is separated from the fixed contact of the fixed portion 22 with the movement of the upper lock side hook member 11, and the unlocked state (release of the locked state) is detected. The interlocking member 53 abuts on the 2 nd stopper 55, and the movement thereof is stopped.
Fig. 9 is a schematic view showing an example of an elevator to which an elevator door according to the present invention is applied. Although a traction elevator having a machine room is shown in the drawings and will be described below, the traction elevator may be an elevator without a machine room. The present invention can be applied to elevators other than traction elevators.
As an example, as shown in the drawing, in an elevator 100, a traction rope 90 has one end that suspends a car 91 and the other end that suspends a counterweight 92, and the middle portion thereof is wound around a traction sheave of a traction machine 93 in a machine room. The hoisting machine 93 frictionally drives the hoisting rope 90 to raise and lower the car 91 and the counterweight 92 in opposite directions in the hoistway. More specifically, in the hoistway, the car 91 moves up and down along the car guide rails 94, and the counterweight 92 moves up and down along the counterweight guide rails (not shown). A control cabinet 95 that controls the operation of the elevator is provided in the machine room. In addition, a guide wheel 96 may also be provided.
The present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments are described in detail to explain the present invention easily and clearly, but the present invention is not necessarily limited to include all the structures described. Further, a part of the structure of one embodiment can be replaced with the structure of another embodiment, and further, the structure of another embodiment can be added to the structure of one embodiment. Further, it is possible to add, delete, and replace another structure to a part of the structures of the embodiments.
Claims (4)
1. An elevator door is provided with: a locking device having an upper lock side hook member and a fixed hook member that engages with the upper lock side hook member at the time of locking; and a locking detection device for detecting whether or not the locking device is in a locked state, characterized in that,
the locking detection device comprises a movable part and a fixed part,
the movable part is mounted to the upper lock side hook member, the movable part extending in a door opening and closing direction, which is a direction in which the elevator door is opened and closed, and a cross section perpendicular to the door opening and closing direction is a downward convex shape,
the fixed part is arranged at a position opposite to the movable part and comprises: a fixed contact point which contacts with the lower end of the movable part when locking; and a fixed cover portion that covers the fixed contact, the fixed cover portion being provided in parallel with the movable portion along the door opening and closing direction and having a concave shape in a cross section perpendicular to the door opening and closing direction.
2. The elevator door according to claim 1,
the movable portion has a flat top portion and a lower convex portion protruding downward from a lower end of the flat top portion, and a cross section of the movable portion perpendicular to the door opening and closing direction is substantially T-shaped.
3. The elevator door according to claim 1,
the fixed cover part is provided with a front wall part covering the front of the fixed contact, a rear wall part covering the rear of the fixed contact and a bottom part provided with the fixed contact, and the section of the fixed cover part vertical to the opening and closing direction of the door is approximately U-shaped.
4. An elevator is characterized in that the elevator is provided with a lifting device,
the elevator door according to any one of claims 1 to 3 is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010645303.4A CN113911867B (en) | 2020-07-07 | 2020-07-07 | Elevator door and elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010645303.4A CN113911867B (en) | 2020-07-07 | 2020-07-07 | Elevator door and elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113911867A CN113911867A (en) | 2022-01-11 |
| CN113911867B true CN113911867B (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010645303.4A Active CN113911867B (en) | 2020-07-07 | 2020-07-07 | Elevator door and elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113911867B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5673770A (en) * | 1996-01-25 | 1997-10-07 | Friedman; Harold S. | Sliding door assembly for an elevator and method of installing same |
| CN101537960A (en) * | 2008-03-18 | 2009-09-23 | 东芝电梯株式会社 | Diagnostic device for elevator door |
| CN202924505U (en) * | 2012-09-24 | 2013-05-08 | 巨人通力电梯有限公司 | Mechanical stop device for domestic elevator |
| CN106744203A (en) * | 2017-03-13 | 2017-05-31 | 日立电梯（中国）有限公司 | Elevator door lock device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203112307U (en) * | 2013-01-17 | 2013-08-07 | 杭州顺达伯耐特电梯有限公司 | Door lock device of elevator landing door |
| US10085523B2 (en) * | 2014-08-11 | 2018-10-02 | Apple Inc. | Attachment system for an electronic device |
| KR102026109B1 (en) * | 2016-04-06 | 2019-09-30 | 미쓰비시덴키 가부시키가이샤 | Interlock device of elevator |
| WO2017179197A1 (en) * | 2016-04-15 | 2017-10-19 | 三菱電機株式会社 | Landing door locking device and contact protection cover |
| CN205855736U (en) * | 2016-06-30 | 2017-01-04 | 株式会社日立制作所 | Elevator door apparatus and elevator |
| CN106229225A (en) * | 2016-09-18 | 2016-12-14 | 天津十二策科技有限公司 | A kind of chopper with anti-electric shock apparatus |
| CN107265268B (en) * | 2017-07-10 | 2023-03-31 | 浙江优迈重工机械有限公司 | Elevator door lock device |
-
2020
- 2020-07-07 CN CN202010645303.4A patent/CN113911867B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5673770A (en) * | 1996-01-25 | 1997-10-07 | Friedman; Harold S. | Sliding door assembly for an elevator and method of installing same |
| CN101537960A (en) * | 2008-03-18 | 2009-09-23 | 东芝电梯株式会社 | Diagnostic device for elevator door |
| CN202924505U (en) * | 2012-09-24 | 2013-05-08 | 巨人通力电梯有限公司 | Mechanical stop device for domestic elevator |
| CN106744203A (en) * | 2017-03-13 | 2017-05-31 | 日立电梯（中国）有限公司 | Elevator door lock device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113911867A (en) | 2022-01-11 |
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