CN114132815A - A home elevator car braking device - Google Patents
A home elevator car braking device Download PDFInfo
- Publication number
- CN114132815A CN114132815A CN202111677957.6A CN202111677957A CN114132815A CN 114132815 A CN114132815 A CN 114132815A CN 202111677957 A CN202111677957 A CN 202111677957A CN 114132815 A CN114132815 A CN 114132815A
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- traction
- wheel
- brake disc
- brake
- car
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- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 5
- 230000007812 deficiency Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/12—Counterpoises
-
- 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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
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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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Braking Arrangements (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
本发明公开了一种家用电梯轿厢制动装置，包括有设置在轿厢和对重上方的安装架，所述的安装架上设有第一牵引组件，第一牵引组件包括有至少一个第一牵引轮，第一牵引轮上绕设有第一牵引件，第一牵引件一端连接轿厢而另一端从上方绕过第一牵引轮后连接对重，至少一个第一牵引轮连接有第一制动组件，第一制动组件包括有与该第一牵引轮连接的第一制动盘以及设置在第一制动盘边缘上用于制止第一制动盘转动的第一制动钳，本发明目的是克服了现有技术的不足，提供一种结构紧凑、安装维护更方便的家用电梯轿厢制动装置。
The invention discloses a home elevator car braking device, comprising a mounting frame arranged above the car and the counterweight, the mounting frame is provided with a first traction component, and the first traction component includes at least one first traction component. A traction wheel, a first traction member is wound around the first traction wheel, one end of the first traction member is connected to the car and the other end is connected to the counterweight after bypassing the first traction wheel from above, and at least one first traction wheel is connected with a first traction wheel. A brake assembly, the first brake assembly includes a first brake disc connected with the first traction wheel and a first brake caliper arranged on the edge of the first brake disc for preventing the rotation of the first brake disc The purpose of the present invention is to overcome the deficiencies of the prior art and provide a home elevator car braking device with a compact structure and more convenient installation and maintenance.
Description
[ technical field ] A method for producing a semiconductor device
The invention particularly relates to a household elevator car braking device.
[ background of the invention ]
The braking device of the elevator is an important structure of the elevator, and relates to the safety of the elevator, the elevator is a manned vertical traffic tool, and the safe operation must be placed at the head. In order to ensure the safe operation of the elevator, the prevention of danger is fully considered from each link of design, manufacture, installation and the like, and a special safety device is arranged aiming at various possible dangers.
The prior elevator running system is generally provided with a safety gear system, namely a safety device which plays a role in protecting when the elevator car runs in an overspeed state and has a rope breaking condition. However, the safety gear system has a complex structure, and the safety gear is arranged between the elevator shaft and the car, so that the installation and maintenance are difficult, the space in the elevator shaft is occupied, and the manufacturing cost of the elevator is increased.
The present invention has been made in view of the above-mentioned disadvantages.
[ summary of the invention ]
The invention aims to overcome the defects of the prior art and provide the household elevator car braking device which is compact in structure and more convenient to install and maintain.
The invention is realized by the following technical scheme:
a home elevator car arresting gear which characterized in that: including setting up at the car and to heavy mounting bracket of top, the mounting bracket on be equipped with first subassembly of pulling, first subassembly of pulling is including at least one first traction wheel, around being equipped with first traction piece on the first traction wheel, first traction piece one end is connected the car and the other end is connected to heavy after bypassing first traction wheel from the top, at least one first traction wheel is connected with first braking subassembly, first braking subassembly is including the first brake disc of being connected with this first traction wheel and set up and be used for preventing first brake disc pivoted first braking pincers on first brake disc edge.
In detail, the home elevator car braking device is characterized in that: the first brake assembly comprises a bearing seat connected to the mounting frame, a rotating shaft penetrates through the bearing seat, and the first brake disc and the corresponding first traction wheel are connected to the rotating shaft together.
The home elevator car braking apparatus as described above, characterized in that: the first brake caliper comprises a base, a caliper body arranged in a sliding mode is arranged on the base, a front friction plate and a rear friction plate are arranged in a jaw of the caliper body, the front friction plate and the rear friction plate are respectively located on the front side and the rear side of the first brake disc, a plurality of driving pieces capable of pushing the rear friction plate to move forwards and abut against the first brake disc are arranged on the caliper body, when the rear friction plate moves forwards and abuts against the first brake disc, the rear driving pieces push the caliper body to slide backwards, and therefore the front friction plate abuts against the first brake disc.
The home elevator car braking apparatus as described above, characterized in that: the first traction wheel is a chain wheel, and the first traction piece is a chain.
The home elevator car braking apparatus as described above, characterized in that: the mounting bracket on be equipped with the safety wheel, go up the third traction piece that moves along with its rotation around being equipped with on the safety wheel, the third is drawn a one end and is connected the car and the other end from the top is walked around after going up the safety wheel and is connected heavily, the car with be equipped with down the safety wheel to heavy below, down draw the piece around being equipped with the fourth that moves along with its rotation on the safety wheel, the fourth is drawn a one end and is connected the car and the other end from the below is walked around after the safety wheel down and is connected heavily.
Preferably, the upper safety wheel is connected with a second brake assembly, and the second brake assembly comprises a second brake disc and a second brake caliper arranged on the edge of the second brake disc and used for stopping the rotation of the second brake disc.
The home elevator car braking apparatus as described above, characterized in that: the upper safety wheel and the lower safety wheel are respectively provided with at least two side by side, and the upper safety wheel is connected with a second brake disc.
The home elevator car braking apparatus as described above, characterized in that: the upper safety wheel and the lower safety wheel are chain wheels, and the third traction piece and the fourth traction piece are chains, or the upper safety wheel and the lower safety wheel are pulleys, and the third traction piece and the fourth traction piece are cables.
The home elevator car braking apparatus as described above, characterized in that: the first traction assembly is provided with at least two traction assemblies side by side.
Compared with the prior art, the invention has the following advantages:
1. the invention relates to a home elevator car braking device, wherein at least one first traction wheel is connected with a first braking component, the first braking component comprises a first brake disc connected with the first traction wheel and a first brake caliper arranged on the edge of the first brake disc and used for stopping the first brake disc from rotating, the first traction wheel adopts a chain wheel, the first traction piece adopts a chain, when the first brake caliper clamps the first brake disc to stop the first brake disc from rotating, thereby preventing the first traction wheel from rotating, the first traction piece is clamped on the first traction wheel to reduce the speed of the lift car and the counterweight, thereby realizing braking, simple and compact structure, saving the internal space of the elevator shaft and the manufacturing cost, and the first braking component can be arranged at the top of the elevator shaft, being convenient for installation and maintenance, in addition, a plurality of first traction assemblies can be arranged according to needs, and a plurality of first brake assemblies are arranged, so that the safety of the braking device can be improved according to actual needs;
2. when the elevator works, when the car moves in the up-down direction, the counterweight moves in the opposite direction, when the car descends rapidly due to a fault, the second brake caliper clamps the second brake disc to prevent the upper safety wheel from rotating or force the upper safety wheel to decelerate, the upper safety wheel pulls the car through the third traction piece, so that the descending speed of the car is reduced or the car stops descending, and the risk of falling caused by the fact that the descending speed of the car is too high is avoided; the third traction piece is respectively connected with the car and the counterweight from the upper part, the fourth traction piece is respectively connected with the car and the counterweight from the lower part, an annular conveying structure is formed, when the car is rapidly lifted due to failure, the second brake caliper clamps the second brake disc to prevent the upper safety wheel from rotating or force the upper safety wheel to decelerate, the upper safety wheel pulls the counterweight through the third traction piece, and the counterweight pulls the car through the fourth traction piece, so that the lifting speed of the car is reduced or stopped to lift, and the risk of top rushing caused by overhigh lifting speed of the car is prevented; in addition, the car and the counterweight move back and forth on the annular conveying structure, so that the car and the counterweight are not easy to transversely swing in the moving process, and the car and the counterweight can run more stably in the ascending and descending processes;
3. the upper safety wheel is connected with a second brake assembly, the second brake assembly comprises a second brake disc and a second brake caliper arranged on the edge of the second brake disc and used for stopping the second brake disc from rotating, the second brake assembly and the first brake assembly can synchronously act to enhance the braking effect, and the second brake assembly can perform multiple braking in addition to the braking effect of the first brake assembly to play a safety role.
[ description of the drawings ]
Fig. 1 is a first schematic structural view of a home elevator car braking apparatus according to a first embodiment of the present invention;
fig. 2 is a second schematic structural view of a home elevator car braking apparatus according to a second embodiment of the present invention;
fig. 3 is a first exploded view of a home elevator car brake apparatus according to a first embodiment of the present invention;
fig. 4 is an exploded view of a home elevator car brake device according to a first embodiment of the present invention;
FIG. 5 is a top view of a first system component according to a second embodiment of the present invention;
fig. 6 is a first exploded view of a home elevator car brake device according to a second embodiment of the present invention;
fig. 7 is a second exploded view of the home elevator car brake device according to the second embodiment of the present invention;
fig. 8 is an exploded view of a home elevator car brake device according to a second embodiment of the present invention.
[ detailed description ] embodiments
The invention is further described below with reference to the accompanying drawings:
the orientations of the present specification, such as "upper", "lower", "left", "right", "front", "back", etc., are based on the orientation of the drawings, and are for the purpose of describing the relationship between the respective components, and do not indicate a unique or absolute positional relationship between the respective components, but merely indicate one embodiment of the present invention, and do not limit the embodiments thereof.
The first embodiment is as follows:
a home elevator car braking device is disclosed, as shown in figure 1, having a mounting frame 1 arranged above a car 2 and a counterweight 3, the mounting frame 1 is provided with a first traction assembly 5, the first traction assembly 5 comprises at least one first traction wheel 51, the first traction wheel 51 is wound with a first traction member 52 capable of moving along with the rotation of the first traction member, one end of the first traction member 52 is connected with the car 2, the other end of the first traction member is connected with the counterweight 3 after winding around the first traction wheel 51 from the upper part, at least one first traction wheel 51 is connected with a first braking assembly 6, the first braking assembly 6 comprises a first brake disc 61 connected with the first traction wheel 51 and a first brake caliper 62 arranged on the edge of the first brake disc 61 for preventing the rotation of the first brake disc 61, the first traction wheel 51 adopts a chain wheel, the first traction member 52 adopts a chain, when the first brake caliper 62 clamps the first brake disc 61 to prevent the first brake disc 61 from rotating, the first traction member 52 is clamped on the first traction wheel 51 to decelerate the car 2 and the counterweight 3, so that braking is realized, the structure is simple, the internal space and the manufacturing cost of an elevator shaft are saved, and the first brake component can be arranged at the top of the elevator shaft, so that the installation and the maintenance are convenient;
a plurality of first traction assemblies 5 can be arranged according to needs, a plurality of first brake assemblies 6 are arranged, and therefore safety of the braking device can be improved according to actual needs.
More specifically, as shown in fig. 3, the first brake assembly 6 includes a bearing seat 63 connected to the mounting frame 1, a rotating shaft 64 penetrates through the bearing seat 63, the first brake disc 61 and the corresponding first traction wheel 51 are connected to the rotating shaft 64 together, so that the first traction wheel 51 provided with the first brake disc 61 and the corresponding first brake disc 61 can rotate synchronously, and the first brake disc 61 is decelerated by resistance and is decelerated in cooperation with the first traction wheel 51.
More specifically, as shown in fig. 4, the first brake caliper 62 includes a base 621, a caliper body 622 is disposed on the base 621, the caliper body 622 can slide back and forth relative to the base 621, a front friction plate 623 and a rear friction plate 624 are disposed in a jaw of the caliper body 622, the front friction plate 623 and the rear friction plate 624 are respectively disposed on front and rear sides of the first brake disc 61, a plurality of driving members 625 capable of pushing the rear friction plate 624 to move forward and abut against the first brake disc 61 are disposed on the caliper body 622, the front friction plate 623 is connected to a front portion of the caliper body 622, the rear friction plate 624 is connected to a front end of the driving members 625, since the first brake disc 61 is fixed, when the rear friction plate 624 moves forward and abuts against the first brake disc 61, the rear driving members 625 act on the caliper body 622 to slide back, and the caliper body 622 further pushes the front friction plate 623 to abut against the first brake disc 61, the structure is simple and reliable, only the worn parts can be replaced after the first brake disc 61, the front friction plate 623 or the rear friction plate 624 are worn, the later maintenance is convenient, and the maintenance cost is low.
As a preferred embodiment, as shown in fig. 1, the mounting frame 1 is further provided with a second traction assembly 7, the second traction assembly 7 comprises at least one second traction wheel 7, a second traction member 72 capable of moving along with the rotation of the second traction wheel 7 is wound on the second traction wheel 7, one end of the second traction member 72 is connected with the car 2, and the other end of the second traction member 72 is connected with the counterweight 3 after winding the second traction wheel 7 from above, the first traction member 52 and the second traction member 72 are respectively connected to opposite sides of the top of the car 2, and when the first traction member 52 pulls the car 2 to ascend or descend, the weight force of the counterweight 3 acts on opposite sides of the car 2 via the first traction element 52 and the second traction element 72 respectively, the stress is balanced when the car 2 and the counterweight 3 move up and down, the stability of the car 2 and the counterweight 3 in the moving process is ensured, and the structure which is the same as that of the embodiment can refer to fig. 3 to 5.
In a preferred embodiment, referring to fig. 3, the same structure as the embodiment is shown, and the driving member 4 is a motor, and the motor is connected to one of the second traction wheels 7 and drives the second traction wheel 7 to rotate. Similarly, a motor may be coupled to the first traction wheel 51, and rotation of the first traction wheel 51 may also drive the first traction member 52 to move. Of course, the motor can also be connected with the first traction wheel 51 and the second traction wheel 7 through a transmission structure and drive the two wheels to rotate synchronously.
Preferably, the first traction wheel 51 and the second traction wheel 7 are both chain wheels, and the first traction element 52 and the second traction element 72 are both chains, so that the connection is firm and reliable, and the risk of slipping of the cable and the like can be avoided.
Example two:
a home elevator car braking device, as shown in fig. 2 to 6, the difference with the first embodiment is that an upper safety wheel 81 is arranged on the mounting frame 1, a third traction member 82 moving along with the rotation of the upper safety wheel 81 is wound on the upper safety wheel 81, one end of the third traction member 82 is connected with the car 2, the other end of the third traction member 82 is connected with the counterweight 3 after winding the upper safety wheel 81, a lower safety wheel 91 is arranged below the car 2 and the counterweight 3, namely a fourth traction member 92 moving along with the rotation of the lower safety wheel 91 is wound on the lower safety wheel 91 of the mounting frame 1a, one end of the fourth traction member 92 is connected with the car 2, the other end of the fourth traction member is connected with the counterweight 3 after winding the lower safety wheel 91 from below, a second braking component 9 is connected on the upper safety wheel 81, the second braking component 9 comprises a second brake disc 91 and a second brake caliper 92 arranged on the edge of the second brake disc 91 for stopping the rotation thereof, when the elevator works, when the car 2 moves in the up-down direction, the counterweight 3 moves in the opposite direction, when the car 2 descends rapidly due to a fault, the second brake caliper 92 clamps the second brake disc 91 to prevent the upper safety wheel 81 from rotating or force the upper safety wheel 81 to decelerate, the upper safety wheel 81 pulls the car 2 through the third traction piece 82, so that the descending speed of the car 2 is reduced or the car stops descending, and the risk that the car 2 descends due to the fact that the descending speed is too fast is avoided; since the third traction member 82 is connected with the car 2 and the counterweight 3 from the top and the fourth traction member 92 is connected with the car 2 and the counterweight 3 from the bottom, respectively, an annular conveying structure is formed, when the car 2 is rapidly lifted due to a fault, the second brake caliper 92 clamps the second brake disc 91 to prevent the upper safety wheel 81 from rotating or force the upper safety wheel 81 to decelerate, the upper safety wheel 81 pulls the counterweight 2 through the third traction member 82, and the counterweight 2 pulls the car 2 through the fourth traction member 92, so that the lifting speed of the car 2 is reduced or stopped to lift, and the risk of roof collision caused by the overhigh lifting speed of the car 2 is prevented; in addition, the car 2 and the counterweight 3 move back and forth on the annular conveying structure, so that the car and the counterweight are not easy to transversely swing in the moving process, and the car and the counterweight can run more stably in the ascending and descending processes. Similarly, the same effect can be achieved by connecting the lower traction assembly 52 with the first brake device 7.
Preferably, the upper safety wheel 81 and the lower safety wheel 91 are respectively provided with at least two side by side to increase the strength, meanwhile, the upper safety wheels 81 and the lower safety wheels 91 can be uniformly connected with the car 2 to play a role in balancing the stress, and the upper safety wheels 81 are respectively connected with the second brake disc 91.
As shown in fig. 4 and 5, the upper safety wheel 81 and the lower safety wheel 91 may employ a pulley, and the third traction member 82 and the fourth traction member 92 employ a cable; the upper safety wheel 81 and the lower safety wheel 91 can adopt chain wheels, and the third traction element 82 and the fourth traction element 92 adopt chains, so that the structure is firm and stable.
Preferably, as shown in fig. 3 to 5, the first traction assembly 5 and the second traction assembly 7 are arranged at least two side by side to increase the strength, and a plurality of first traction assemblies 5 and second traction assemblies 7 can be uniformly connected with the car 2 to play a role in balancing the stress.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111677957.6A CN114132815A (en) | 2021-12-31 | 2021-12-31 | A home elevator car braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111677957.6A CN114132815A (en) | 2021-12-31 | 2021-12-31 | A home elevator car braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114132815A true CN114132815A (en) | 2022-03-04 |
Family
ID=80381683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111677957.6A Pending CN114132815A (en) | 2021-12-31 | 2021-12-31 | A home elevator car braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114132815A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7500847B1 (en) | 2023-09-06 | 2024-06-17 | 東芝エレベータ株式会社 | Elevator governor and elevator |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0457436A1 (en) * | 1990-04-13 | 1991-11-21 | Otis Elevator Company | Disc brake for elevator |
| US5699879A (en) * | 1996-05-06 | 1997-12-23 | Sakita; Masami | Elevator system |
| CN202107401U (en) * | 2011-06-01 | 2012-01-11 | 苏州通润驱动设备股份有限公司 | Emergency braking device clamped on traction sheave of tractor |
| US20150210509A1 (en) * | 2012-10-31 | 2015-07-30 | Kone Corporation | Elevator and method for modernizing an elevator |
| US20160075536A1 (en) * | 2013-06-05 | 2016-03-17 | Kone Corporation | Drive machine for an elevator and an elevator |
| CN205170101U (en) * | 2015-11-24 | 2016-04-20 | 苏州通润驱动设备股份有限公司 | Hauler safety arrangement |
| CN112707274A (en) * | 2020-12-22 | 2021-04-27 | 羽源洋(宁波)科技有限公司 | Elevator traction robot with bidirectional braking type brake system |
| CN217076605U (en) * | 2021-12-31 | 2022-07-29 | 中山天达电梯科技有限公司 | Household elevator car braking structure |
-
2021
- 2021-12-31 CN CN202111677957.6A patent/CN114132815A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0457436A1 (en) * | 1990-04-13 | 1991-11-21 | Otis Elevator Company | Disc brake for elevator |
| US5699879A (en) * | 1996-05-06 | 1997-12-23 | Sakita; Masami | Elevator system |
| CN202107401U (en) * | 2011-06-01 | 2012-01-11 | 苏州通润驱动设备股份有限公司 | Emergency braking device clamped on traction sheave of tractor |
| US20150210509A1 (en) * | 2012-10-31 | 2015-07-30 | Kone Corporation | Elevator and method for modernizing an elevator |
| US20160075536A1 (en) * | 2013-06-05 | 2016-03-17 | Kone Corporation | Drive machine for an elevator and an elevator |
| CN205170101U (en) * | 2015-11-24 | 2016-04-20 | 苏州通润驱动设备股份有限公司 | Hauler safety arrangement |
| CN112707274A (en) * | 2020-12-22 | 2021-04-27 | 羽源洋(宁波)科技有限公司 | Elevator traction robot with bidirectional braking type brake system |
| CN217076605U (en) * | 2021-12-31 | 2022-07-29 | 中山天达电梯科技有限公司 | Household elevator car braking structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7500847B1 (en) | 2023-09-06 | 2024-06-17 | 東芝エレベータ株式会社 | Elevator governor and elevator |
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Application publication date: 20220304 |