EP3034447A1 - Two nodal point pressure-equalising device of steel rope sets for elevator - Google Patents
Two nodal point pressure-equalising device of steel rope sets for elevator Download PDFInfo
- Publication number
- EP3034447A1 EP3034447A1 EP14836446.6A EP14836446A EP3034447A1 EP 3034447 A1 EP3034447 A1 EP 3034447A1 EP 14836446 A EP14836446 A EP 14836446A EP 3034447 A1 EP3034447 A1 EP 3034447A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- main body
- device main
- steel rope
- equalising device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- B66B7/10—Arrangements of ropes or cables for equalising rope or cable tension
Definitions
- the invention relates to a pressure-equalising device of steel rope sets for an elevator, and more particularly, to a two nodal pressure-equalising device of two steel rope sets for an elevator capable of adjusting a pressure sustained to two steel rope sets and enabling the pressure sustained between these two steel rope sets to be the same.
- a traction elevator suspending and lifting system is composed of a traction wheel, a steel rope set, a car platform sill, a balance block system and other main parts; a friction pressure generated by winding each steel rope of the steel rope set in a groove of the traction wheel in the traction elevator suspending and lifting system provides a power for the car platform sill to lift up or down; under the adjustment that the elevator driving technology keeps developing, both the lifting height of the elevator and the running speed are greatly improved, at the same time, higher requirements are also proposed on the safety and the reliability of the elevator.
- the pressure sustained to each steel rope in the steel rope set shall be the same in the using process of the elevator, and the shape and the size of the groove for winding the steel rope on the traction wheel shall also be the same; but in the actually using process, the pressure sustained to each steel rope in the steel rope set shall be different due to various reasons, this results in a situation that some steel ropes are pressured highly and some steel ropes are pressured lowly; the friction pressure between the highly-pressured steel rope and the groove on the corresponding traction wheel will relatively higher, this results in a condition that the friction of the groove on the corresponding traction wheel is more severe, so the shape and the size of the groove on the corresponding traction wheel are changed over time, resulting in that the highly-pressured steel rope is pressured more and more in work.
- the steel rope will move less than 0.314mm; by taking the 20-storey building for example, the traction wheel will rotate about 100 turns, so the steel rope will move less than 31.4mm.
- the steel rope will pressured more than about 3000N; when the steel rope in the steel rope set is pressured unevenly, a wriggling phenomenon is generated between the lowly-pressured steel rope and the traction wheel, the wriggling between the steel rope and the traction wheel will cause the abrasion of the steel rope and the traction wheel; the higher the storey is, the more severe the situation above becomes.
- the highly-pressured steel rope used for a long time is easy to break in the using process, resulting in safety accidents of the elevator; at the same time, the lowly-pressured steel rope will also be damaged due to the abrasion of the traction wheel. If the damage is severe, the steel rope will also be broken to result in the safety accidents of the elevator; for this reason, we develop a two nodal pressure-equalising device of steel rope sets for an elevator capable of adjusting the pressure to two steel rope sets and enabling these two steel rope sets to pressure the same.
- the object of the invention is to overcome the shortages of the prior art and is intended to provide a two nodal pressure-equalising device of steel rope sets for an elevator capable of adjusting the pressure to two steel rope sets and enabling these two steel rope sets to pressure the same.
- a two nodal point pressure-equalising device of steel rope sets for an elevator includes a pressure-equalising device main body, wherein the pressure-equalising device main body is rotatably provided on a base seat; two spherical nodal points are symmetrically provided on the pressure-equalising device main body; the spherical nodal points are mounted with the steel rope sets; the spherical nodal points can rotate around the pressure-equalising device main body; the rotation centre of the pressure-equalising device main body is located on the centre line thereof; and the rotation centre of each spherical nodal point is on the same horizontal plane as the rotational centre of the pressure-equalising device main body and is collinear.
- two spherical cavities are symmetrically provided on the pressure-equalising device main body; the spherical nodal point is arranged in each spherical cavity, and cam rotate.
- the lower portion of the pressure-equalising device main body is provided with a rotating mount; the centre line of the pressure-equalising device main body and the centre line of the rotating mount are collinear; the bottom of the rotating mount is provided with an arc-shaped bump; the base seat is provided with an arc-shaped groove; and when the arc-shaped bump is arranged in the arc-shaped groove, the arc-shaped bump can rotate around the arc-shaped groove.
- the pressure-equalising device main body is opened with a screw hole, and a screw can fix the rotating mount at the lower portion of the pressure-equalising device main body via the screw hole.
- the base seat is uniformly distributed with fixed holes to conveniently mount the base seat.
- the centre of the spherical nodal point is provided with a through hole for accommodating the steel rope.
- the present invention has the following advantages compared to the prior art:
- Fig. 1 is a sectional vie of a two nodal point pressure-equalising device of steel rope sets for an elevator described in the present invention; Wherein: 1. two nodal point pressure-equalising device of the steel rope sets for the elevator; 2. spherical cavity; 3. screw hole; 4. rotating mount; 5. base seat; 6. arc-shaped bump; 7. arc-shaped groove; 8. spherical nodal point; 9. through hole; 10. fixed hole.
- Fig. 1 is a two nodal point pressure-equalising device of a steel rope set for an elevator corresponding to the first embodiment according to the invention, which is mounted at the head or tail of a dragging steel rope set (without being shown in the figure) and includes a pressure-equalising device main body 1; the pressure-equalising device main body 1 can be rotatably provided on a base seat 5; two spherical nodal points 8 are symmetrically provided on the pressure-equalising device main body 2 to mount two steel rope sets; the centre of the spherical nodal points 8 is provided with a through hole 9; the through hole 9 is used for mounting a steel rope; the spherical nodal points 8 can rotate around the pressure-equalising device main body 1; the rotation centre of the pressure-equalising device main body 1 is located on the centre line thereof; and the rotation centre of each spherical nodal point 8 is on the same horizontal plane as the rotational centre of the pressure-equalising device main body
- two spherical cavities 2 are symmetrically provided on the pressure-equalising device main body 1 along the centre line; the spherical nodal point 8 is arranged in each spherical cavity 2 and can rotate;
- the lower portion of the pressure-equalising device main body 1 is provided with a rotating mount 4;
- the centre line of the pressure-equalising device main body 1 and the centre line of the rotating mount 4 are collinear;
- the bottom of the rotating mount 4 is provided with an arc-shaped bump 6;
- the base 5 is provided with an arc-shaped groove 7; when the arc-shaped bump 6 is placed in the arc-shaped groove 7, the arc-shaped bump 6 can rotate or wriggle around the arc-shaped groove 7;
- the pressure-equalising device main body 1 is provided with a screw hole 3, a screw (without being shown) can fix the rotating mount 4 at the lower portion of the pressure-equalising device main body 4 via the screw hole 3; and the base seat 5 is uniformly distributed with fixed
- the arc-shaped bump 6 can also be set as a spherical bump, and the corresponding arc-shaped groove 7 is set as a spherical groove.
- the present invention has the following advantages compared with the prior art: according to the two nodal point pressure-equalising device of the steel rope sets for the elevator described in the present invention, wherein the pressure-equalising device main body is rotatably provided on a base seat to balance the pressures at both ends thereof by wiggling around the rotation centre; two spherical nodal points are symmetrically provided on the pressure-equalising device main body; the centre of the spherical nodal points is provided with a through hole; the through hole is used for mounting a steel rope; the spherical nodal points can rotate or wiggle around the pressure-equalising device main body; the rotation centre of the pressure-equalising device main body is located on the centre line thereof; and the rotation centre of each spherical nodal point is on the same horizontal plane as the rotational centre of the pressure-equalising device main body and is collinear.
- the two nodal point pressure-equalising device enables each independent traction steel rope to have a mechanics relationship correlative to the other steel rope by means of an oscillating bar and the lever principle, i.e., the change in the pressure sustained to any steel rope will transmit to the spherical nodal points under the condition that the pressure is sustained to the traction steel rope set, and the spherical nodal point is pressured to wiggle to enable the pressure-equalising device main body to lose balance to wiggle around the rotation centre.
- the device according to the solution of the present invention can adjust the pressure sustained by two sets of steel ropes, and when a stable state is reached, the pressure sustained by two steel rope sets will be the same, thereby enabling the damage caused by unequal pressure sustained by the steel rope set for the elevator to be overcome, increasing the service life of the steel ropes, and improving the safety of the elevator.
Abstract
Disclosed is a two nodal point pressure-equalising device of steel rope sets for an elevator, comprising a pres - sure-equalising device main body (1); wherein the pressure-equalising device main body (1) is rotatably provided on a base seat (5); two spherical nodal points (8) are symmetrically provided on the pressure-equalising device main body (1); the centre of the spheric¬al nodal points (8) is provided with a through hole (9); the through hole (9) is used for mounting a steel rope; the spherical nodal points (8) can rotate around the pressure-equalising device main body (1); the rotational centre of the pressure-equalising device main body (1) is located on the centre line thereof; and the rotational centre of each spherical nodal point (8) is on the same hori - zontal plane as the rotational centre of the pressure-equalising device main body (1) and is collinear. The device can adjust the pres - sure sustained by two sets of steel ropes, and when a stable state is reached, the pressure sustained by each steel rope set will be the same, thereby enabling the damage caused by unequal pressure sustained by steel ropes for an elevator to be overcome, increasing the service life of the steel ropes.
Description
- The invention relates to a pressure-equalising device of steel rope sets for an elevator, and more particularly, to a two nodal pressure-equalising device of two steel rope sets for an elevator capable of adjusting a pressure sustained to two steel rope sets and enabling the pressure sustained between these two steel rope sets to be the same.
- At present, domestic and overseas elevators generally adopts a traction machine to drive. A traction elevator suspending and lifting system is composed of a traction wheel, a steel rope set, a car platform sill, a balance block system and other main parts; a friction pressure generated by winding each steel rope of the steel rope set in a groove of the traction wheel in the traction elevator suspending and lifting system provides a power for the car platform sill to lift up or down; under the adjustment that the elevator driving technology keeps developing, both the lifting height of the elevator and the running speed are greatly improved, at the same time, higher requirements are also proposed on the safety and the reliability of the elevator. Theoretically, the pressure sustained to each steel rope in the steel rope set shall be the same in the using process of the elevator, and the shape and the size of the groove for winding the steel rope on the traction wheel shall also be the same; but in the actually using process, the pressure sustained to each steel rope in the steel rope set shall be different due to various reasons, this results in a situation that some steel ropes are pressured highly and some steel ropes are pressured lowly; the friction pressure between the highly-pressured steel rope and the groove on the corresponding traction wheel will relatively higher, this results in a condition that the friction of the groove on the corresponding traction wheel is more severe, so the shape and the size of the groove on the corresponding traction wheel are changed over time, resulting in that the highly-pressured steel rope is pressured more and more in work. If the radius of the worn groove on the traction wheel is reduced by 0.1mm, the steel rope will move less than 0.314mm; by taking the 20-storey building for example, the traction wheel will rotate about 100 turns, so the steel rope will move less than 31.4mm. Through test, it is discovered that the steel rope will pressured more than about 3000N; when the steel rope in the steel rope set is pressured unevenly, a wriggling phenomenon is generated between the lowly-pressured steel rope and the traction wheel, the wriggling between the steel rope and the traction wheel will cause the abrasion of the steel rope and the traction wheel; the higher the storey is, the more severe the situation above becomes. Therefore, the highly-pressured steel rope used for a long time is easy to break in the using process, resulting in safety accidents of the elevator; at the same time, the lowly-pressured steel rope will also be damaged due to the abrasion of the traction wheel. If the damage is severe, the steel rope will also be broken to result in the safety accidents of the elevator; for this reason, we develop a two nodal pressure-equalising device of steel rope sets for an elevator capable of adjusting the pressure to two steel rope sets and enabling these two steel rope sets to pressure the same.
- The object of the invention is to overcome the shortages of the prior art and is intended to provide a two nodal pressure-equalising device of steel rope sets for an elevator capable of adjusting the pressure to two steel rope sets and enabling these two steel rope sets to pressure the same.
- In order to implement the above object, the present invention employ the following technical solutions: a two nodal point pressure-equalising device of steel rope sets for an elevator includes a pressure-equalising device main body, wherein the pressure-equalising device main body is rotatably provided on a base seat; two spherical nodal points are symmetrically provided on the pressure-equalising device main body; the spherical nodal points are mounted with the steel rope sets; the spherical nodal points can rotate around the pressure-equalising device main body; the rotation centre of the pressure-equalising device main body is located on the centre line thereof; and the rotation centre of each spherical nodal point is on the same horizontal plane as the rotational centre of the pressure-equalising device main body and is collinear.
- Preferably, two spherical cavities are symmetrically provided on the pressure-equalising device main body; the spherical nodal point is arranged in each spherical cavity, and cam rotate.
- Preferably, the lower portion of the pressure-equalising device main body is provided with a rotating mount; the centre line of the pressure-equalising device main body and the centre line of the rotating mount are collinear; the bottom of the rotating mount is provided with an arc-shaped bump; the base seat is provided with an arc-shaped groove; and when the arc-shaped bump is arranged in the arc-shaped groove, the arc-shaped bump can rotate around the arc-shaped groove.
- Preferably, the pressure-equalising device main body is opened with a screw hole, and a screw can fix the rotating mount at the lower portion of the pressure-equalising device main body via the screw hole.
- Preferably, the base seat is uniformly distributed with fixed holes to conveniently mount the base seat.
- The centre of the spherical nodal point is provided with a through hole for accommodating the steel rope.
- Due to the application of the foregoing technical solution, the present invention has the following advantages compared to the prior art:
- According to the two nodal point pressure-equalising device of the steel rope sets for the elevator described in the present invention, the pressure-equalising device main body is rotatably provided on a base seat; two spherical nodal points are symmetrically provided on the pressure-equalising device main body; the centre of the spherical nodal points is provided with a through hole; the through hole is used for mounting a steel rope; the spherical nodal points can rotate around the pressure-equalising device main body; the rotation centre of the pressure-equalising device main body is located on the centre line thereof; and the rotation centre of each spherical nodal point is on the same horizontal plane as the rotational centre of the pressure-equalising device main body and is collinear. The device can adjust the pressure sustained by two sets of steel ropes, and when a stable state is reached, the pressure sustained by two steel rope sets will be the same, thereby enabling the damage caused by unequal pressure sustained by the steel rope set for the elevator to be overcome, increasing the service life of the steel ropes, and improving the safety of the elevator.
- The technical scheme of the invention will be further described hereinafter with reference to the drawings.
- Fig. 1 is a sectional vie of a two nodal point pressure-equalising device of steel rope sets for an elevator described in the present invention;
Wherein: 1. two nodal point pressure-equalising device of the steel rope sets for the elevator; 2. spherical cavity; 3. screw hole; 4. rotating mount; 5. base seat; 6. arc-shaped bump; 7. arc-shaped groove; 8. spherical nodal point; 9. through hole; 10. fixed hole. - The present invention will be further described in details hereinafter with reference to the drawings and the specific embodiments.
- Fig. 1 is a two nodal point pressure-equalising device of a steel rope set for an elevator corresponding to the first embodiment according to the invention, which is mounted at the head or tail of a dragging steel rope set (without being shown in the figure) and includes a pressure-equalising device
main body 1; the pressure-equalising devicemain body 1 can be rotatably provided on abase seat 5; twospherical nodal points 8 are symmetrically provided on the pressure-equalising devicemain body 2 to mount two steel rope sets; the centre of thespherical nodal points 8 is provided with athrough hole 9; the throughhole 9 is used for mounting a steel rope; thespherical nodal points 8 can rotate around the pressure-equalising devicemain body 1; the rotation centre of the pressure-equalising devicemain body 1 is located on the centre line thereof; and the rotation centre of eachspherical nodal point 8 is on the same horizontal plane as the rotational centre of the pressure-equalising devicemain body 1 and is collinear. - In the embodiment, as shown in Fig. 1, two
spherical cavities 2 are symmetrically provided on the pressure-equalising devicemain body 1 along the centre line; thespherical nodal point 8 is arranged in eachspherical cavity 2 and can rotate; the lower portion of the pressure-equalising devicemain body 1 is provided with a rotatingmount 4; the centre line of the pressure-equalising devicemain body 1 and the centre line of the rotatingmount 4 are collinear; the bottom of the rotatingmount 4 is provided with an arc-shaped bump 6; thebase 5 is provided with an arc-shaped groove 7; when the arc-shaped bump 6 is placed in the arc-shaped groove 7, the arc-shaped bump 6 can rotate or wriggle around the arc-shaped groove 7; the pressure-equalising devicemain body 1 is provided with ascrew hole 3, a screw (without being shown) can fix the rotatingmount 4 at the lower portion of the pressure-equalising devicemain body 4 via thescrew hole 3; and thebase seat 5 is uniformly distributed withfixed holes 10 to conveniently mount thebase seat 5. - Of course, in the embodiment, the arc-
shaped bump 6 can also be set as a spherical bump, and the corresponding arc-shaped groove 7 is set as a spherical groove. - Due to the application of the technical solution above, the present invention has the following advantages compared with the prior art: according to the two nodal point pressure-equalising device of the steel rope sets for the elevator described in the present invention, wherein the pressure-equalising device main body is rotatably provided on a base seat to balance the pressures at both ends thereof by wiggling around the rotation centre; two spherical nodal points are symmetrically provided on the pressure-equalising device main body; the centre of the spherical nodal points is provided with a through hole; the through hole is used for mounting a steel rope; the spherical nodal points can rotate or wiggle around the pressure-equalising device main body; the rotation centre of the pressure-equalising device main body is located on the centre line thereof; and the rotation centre of each spherical nodal point is on the same horizontal plane as the rotational centre of the pressure-equalising device main body and is collinear. In this way, the two nodal point pressure-equalising device according to the present invention enables each independent traction steel rope to have a mechanics relationship correlative to the other steel rope by means of an oscillating bar and the lever principle, i.e., the change in the pressure sustained to any steel rope will transmit to the spherical nodal points under the condition that the pressure is sustained to the traction steel rope set, and the spherical nodal point is pressured to wiggle to enable the pressure-equalising device main body to lose balance to wiggle around the rotation centre. In this way, the change in the pressure sustained to the spherical nodal point will be transmitted to the other spherical nodal point to enable the pressure sustained to these two spherical nodal points to balance, i.e., the pressure sustained to each steel rope set to be equal by means of the lever principle (the moment is equal to the pressure multiplying by the distance).
- The device according to the solution of the present invention can adjust the pressure sustained by two sets of steel ropes, and when a stable state is reached, the pressure sustained by two steel rope sets will be the same, thereby enabling the damage caused by unequal pressure sustained by the steel rope set for the elevator to be overcome, increasing the service life of the steel ropes, and improving the safety of the elevator.
- The embodiments above are only for describing the technical through and features of the invention, with a view to enabling the technical personnel who are familiar with the technology to understand the content of the invention and implement, but not intended to limit the protection scope of the present invention. Any equivalent change or modification made according to the spiritual essence of the present invention shall all fall within the protection scope of the present invention.
Claims (6)
- A two nodal point pressure-equalising device of steel rope sets for an elevator, comprising a pressure-equalising device main body, wherein the pressure-equalising device main body is rotatably provided on a base seat; two spherical nodal points are symmetrically provided on the pressure-equalising device main body; the spherical nodal points are matched and connected with the steel rope sets; the spherical nodal points can rotate or wiggle around the pressure-equalising device main body; the rotation centre of the pressure-equalising device main body is located on the centre line thereof; and the rotation centre of each spherical nodal point is on the same horizontal plane as the rotational centre of the pressure-equalising device main body and is collinear.
- The two nodal point pressure-equalising device of the steel rope sets for the elevator according to claim 1, wherein two spherical cavities are symmetrically provided on the pressure-equalising device main body; the spherical nodal point is arranged in each spherical cavity, and cam rotate or wiggle.
- The two nodal point pressure-equalising device of the steel rope sets for the elevator according to claim 1, wherein the lower portion of the pressure-equalising device main body is provided with a rotating mount; the centre line of the pressure-equalising device main body and the centre line of the rotating mount are collinear; the bottom of the rotating mount is provided with an arc-shaped bump; the base is provided with an arc-shaped groove; and when the arc-shaped bump is placed in the arc-shaped groove, the arc-shaped bump can rotate around the arc-shaped groove.
- The two nodal point pressure-equalising device of the steel rope sets for the elevator according to claim 3, wherein the pressure-equalising device main body is provided with a screw hole, a screw can fix the rotating mount at the lower portion of the pressure-equalising device main body via the screw hole.
- The two nodal point pressure-equalising of the steel rope set for the elevator according to claim 1, wherein the base seat is uniformly distributed with fixed holes to conveniently mount the base seat.
- The two nodal point pressure-equalising of the steel rope set for the elevator according to claim 1, wherein the centre of the spherical nodal points is provided with a through hole for accommodating a steel rope.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310347752.0A CN104370187B (en) | 2013-08-12 | 2013-08-12 | A kind of two node compensating gears of steel wire rope for elevator group |
| PCT/CN2014/081885 WO2015021837A1 (en) | 2013-08-12 | 2014-07-09 | Two nodal point pressure-equalising device of steel rope sets for elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3034447A1 true EP3034447A1 (en) | 2016-06-22 |
| EP3034447A4 EP3034447A4 (en) | 2017-04-12 |
Family
ID=52468011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14836446.6A Withdrawn EP3034447A4 (en) | 2013-08-12 | 2014-07-09 | Two nodal point pressure-equalising device of steel rope sets for elevator |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3034447A4 (en) |
| JP (1) | JP6276858B2 (en) |
| KR (1) | KR101877804B1 (en) |
| CN (1) | CN104370187B (en) |
| WO (1) | WO2015021837A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6641606B2 (en) * | 2018-03-30 | 2020-02-05 | 株式会社富士通ゼネラル | Ceiling-mounted air conditioner |
| RU2746276C1 (en) * | 2020-09-18 | 2021-04-12 | Автономная некоммерческая организация «Институт социально-экономических стратегий и технологий развития» | Method for activating germination of seeds of cereal meadow grasses under led monochromatic lighting |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1924690A (en) * | 1930-07-30 | 1933-08-29 | See Elevator Company Inc Ab | Cable equalizer |
| US2089143A (en) * | 1936-03-13 | 1937-08-03 | Severn A White | Elevator cable equalizer |
| JPS49141550U (en) * | 1973-04-06 | 1974-12-06 | ||
| SU918236A1 (en) * | 1980-04-01 | 1982-04-07 | Сибирский металлургический институт им.Серго Орджоникидзе | Rope tension equalizer for suspended systems |
| CN1019786B (en) * | 1990-03-17 | 1992-12-30 | 铁法矿务局 | Automatic wire tension balancing device for multiple wire hoist |
| JPH07172733A (en) * | 1993-12-20 | 1995-07-11 | Mitsubishi Denki Bill Techno Service Kk | Rope socket detent jig for main rope and tension adjusting method for main rope |
| JPH0867458A (en) * | 1994-08-31 | 1996-03-12 | Mitsubishi Denki Bill Techno Service Kk | Balance rope lifting device |
| JPH09156852A (en) * | 1995-12-06 | 1997-06-17 | Hitachi Building Syst Co Ltd | Main rope tension adjusting device for elevator |
| KR100406871B1 (en) * | 2003-01-11 | 2003-12-03 | Jeong Du Choi | Device for equalizing rope tension of elevator |
| CN2892781Y (en) * | 2006-04-24 | 2007-04-25 | 邹晓明 | Elevator towline tension automatic balancing device |
| CN102476772A (en) * | 2010-11-30 | 2012-05-30 | 江苏佛斯特电梯有限公司 | Rope head device for automatically balancing tensile force of wire rope |
| CN202201604U (en) * | 2011-01-31 | 2012-04-25 | 北京升华电梯集团有限公司 | Self-balance rope end composite set |
| CN202785168U (en) * | 2012-02-13 | 2013-03-13 | 李军 | Uniform force mechanism for traction elevator wire rope set |
| CN203428692U (en) * | 2013-08-12 | 2014-02-12 | 苏州博菱达传动设备有限公司 | Two-node force equalizing device for steel rope groups for elevator |
-
2013
- 2013-08-12 CN CN201310347752.0A patent/CN104370187B/en not_active Expired - Fee Related
-
2014
- 2014-07-09 KR KR1020167006484A patent/KR101877804B1/en active IP Right Grant
- 2014-07-09 JP JP2016532217A patent/JP6276858B2/en not_active Expired - Fee Related
- 2014-07-09 WO PCT/CN2014/081885 patent/WO2015021837A1/en active Application Filing
- 2014-07-09 EP EP14836446.6A patent/EP3034447A4/en not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2015021837A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6276858B2 (en) | 2018-02-07 |
| WO2015021837A1 (en) | 2015-02-19 |
| KR20160067838A (en) | 2016-06-14 |
| JP2016529180A (en) | 2016-09-23 |
| CN104370187A (en) | 2015-02-25 |
| EP3034447A4 (en) | 2017-04-12 |
| KR101877804B1 (en) | 2018-07-13 |
| CN104370187B (en) | 2016-08-24 |
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Legal Events
| Date | Code | Title | Description |
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