WO2018199134A1 - Elevator - Google Patents
Elevator Download PDFInfo
- Publication number
- WO2018199134A1 WO2018199134A1 PCT/JP2018/016743 JP2018016743W WO2018199134A1 WO 2018199134 A1 WO2018199134 A1 WO 2018199134A1 JP 2018016743 W JP2018016743 W JP 2018016743W WO 2018199134 A1 WO2018199134 A1 WO 2018199134A1
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- WIPO (PCT)
- Prior art keywords
- bracket
- pulley
- horizontal projection
- rope
- elevator
- Prior art date
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Classifications
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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
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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
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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
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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
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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
Definitions
- the present invention relates to an elevator.
- the most popular elevator is a traction type elevator.
- the hoisting machine drives the car and the balance weight device through the rope.
- a pulley may be provided in the elevator balancing weight device.
- it is required to cover the pulley with a cover or the like in order to prevent the operator's fingers from being caught.
- a pulley is provided in a groove between an upper frame portion 20 and a vertical frame portion 18 of a counterweight frame formed of channel steel (the publication FIG. 1). reference).
- the upper frame part 20 and the vertical frame part 18 can cover the side surface and the upper part of the pulley, it is possible to prevent an operator's finger or the like from being caught in the pulley.
- the rotation plane of the pulley is parallel to the longitudinal direction of the upper frame portion 20.
- the pulley thickness is smaller than the groove width of the upper frame portion 20 and the vertical frame portion 18, the pulley can be installed in the groove of the upper frame portion 20 and the vertical frame portion 18, and the upper frame portion 20 And the vertical frame 18 can be used as a safety cover.
- the “rotation plane” means a plane on which a locus (circle) drawn at the time of rotation at a point away from the rotation axis of the pulley is placed.
- the normal of the plane of rotation is parallel to the rotation axis of the pulley.
- One pulley has an infinite number of rotation planes, and these rotation planes are parallel to each other. Therefore, when examining the direction of the rotation plane of the pulley, one of the rotation planes may be considered.
- an object of the present invention is to provide an elevator that can prevent a worker's finger or the like from being caught in a pulley, and at the same time, can secure a necessary gap size between a counterweight device and another device. .
- an elevator includes a car that moves up and down a hoistway, a balance weight device that is connected to the car through a rope, and the car and the balance weight that are connected through the rope.
- An elevator including a hoist for driving the device, wherein the balance weight device is provided on an upper frame of the balance weight frame by means of a bracket, and a rotation plane is in a predetermined interval between the longitudinal direction of the upper frame.
- It is constituted by a pulley around which the rope is wound, and a plurality of plate-shaped partial covers separable in the vertical direction, and is a wrap-around prevention cover that is fixed to the bracket and covers the side surface of the pulley,
- a horizontal projection has a bent portion at a lateral end of each partial cover projecting outward from the horizontal projection of the bracket, and the horizontal projection of the bent portion is a horizontal projection of the bracket.
- a winding prevention cover adjacent to.
- the wrap-around prevention cover provided in the elevator according to the present invention covers the side surface of the pulley, and can prevent the operator's finger or the like from being caught in the pulley. Since there is a bent part near the bracket at the side edge of the wrap-around prevention cover, the amount of overhang that the wrap-up prevention cover protrudes outward from the bracket (particularly in the direction of the car) is reduced. A necessary clearance dimension can be ensured between the slip-in prevention cover and the car or other equipment, and a collision can be prevented.
- FIG. 3 is an enlarged schematic view of the pulley vicinity structure shown in FIG. 2. It is a top view of the counterweight apparatus shown in FIG. Fig. 3 schematically shows a state in which a wrap-around prevention cover is removed from the counterweight device shown in Fig. 2.
- FIG. 1 is a schematic view schematically showing an embodiment of the elevator of the present invention.
- the elevator 100 includes a hoistway 102, a car 104, a counterweight device 106, and a hoisting machine 110.
- the elevator 100 is a machine room-less elevator, and a hoisting machine 110 is installed in a hoistway.
- the car 104 and the counterweight device 106 are connected through a rope 108.
- the rope 108 is hung on the sheave of the hoisting machine 110, and the hoisting machine 110 drives the car 104 and the counterweight device 106 through the rope 108 to raise and lower the hoistway 102.
- FIG. 2 is a schematic view schematically showing the structure of the balance weight device of the elevator of the present invention.
- FIG. 2 includes a left front view and a right right side view.
- the counterweight device 106 includes a counterweight frame 202, a weight 204, a pulley 206, and an anti-roll-up cover 220.
- the counterweight frame 202 is mainly composed of two vertical frames 202a, an upper frame 202b, and a lower frame 202c.
- a plurality of weights 204 are placed inside the balance weight frame 202.
- the pulley 206 is provided on the upper frame 202b with a plurality of brackets, and the rope 108 is wound around the pulley 206.
- An entrainment prevention cover 220 is provided on the side surface of the pulley 206.
- FIG. 3 is an enlarged schematic view of the pulley vicinity structure shown in FIG. 4 is a plan view of the counterweight device shown in FIG.
- the car 104 and the nearest hoistway wall 102a are also shown in FIG.
- the rotation plane 400 of the pulley 206 is also indicated by a two-dot chain line.
- FIG. 5 schematically shows a state in which the anti-winding cover is removed from the counterweight device shown in FIG. Show.
- the rotation plane 400 of the pulley 206 has a predetermined angle ⁇ (0 ° ⁇ ⁇ 90 °) between the longitudinal direction of the upper frame 202b.
- the angle ⁇ is determined by the traveling direction and angle of the rope 108 to be set by the pulley 206.
- the pulley 206 is attached to the upper frame 202b by a plurality of brackets.
- the bracket includes a first bracket 212, a second bracket 214, a third bracket 215, a third bracket 216, and a fourth bracket 218.
- the first bracket 212 is a base plate, and is fixed to the upper frame 202b by an angle, a bolt, or the like.
- the second bracket 214 is channel steel and is fixed to the first bracket 212 with its opening facing upward.
- the plate-like third bracket 215 and the third bracket 216 are vertically fixed to the two groove walls of the second bracket 214, respectively.
- the pulley 206 is provided between the third bracket 215 and the third bracket 216, and the rotation axis thereof is supported by the third bracket 215 and the third bracket 216.
- the fourth bracket 218 is channel steel and connects the third bracket 215 and the third bracket 216 from above over the pulley 206.
- the fourth bracket 218 not only reinforces the support for the two third brackets, but can also prevent the operator's fingers and the like from being caught, and can also cover the dust falling on the pulley 206 as a cover.
- a rope detachment prevention plate 232 and a rope detachment prevention plate 234 are provided near the left and right edges of the pulley 206, respectively.
- the left and right edges of the pulley 206 are a part where the rope 108 enters the rope groove of the pulley 206 and a part where the rope 108 leaves the rope groove. At these portions, the rope 108 is easily detached from the rope groove of the pulley 206.
- a dustproof cover 236 and a dustproof cover 238 are provided at both left and right ends of the fourth bracket 218 in order to block dust falling on the pulley 206.
- the entrainment prevention cover 220 includes two partial covers that are separable in the vertical direction, that is, an upper cover 222 and a lower cover 224.
- the upper cover 222 and the lower cover 224 are plate-shaped.
- the upper cover 222 and the lower cover 224 are fixed to the third bracket 215 by bolts, and cover one side surface (side surface facing the car 104) of the pulley 206. This prevents an operator's finger or the like from being caught between the pulley 206 and the rope 108.
- the plate-shaped wrap-around prevention cover 220 has a simple structure and is low in cost.
- the other side surface of the pulley 206 faces the hoistway wall 102a, and the distance between the counterweight device 106 and the hoistway wall 102a is small, so that an operator can connect with the counterweight device 106. Since there is no work between the hoistway walls 102a, no wrapping prevention cover is provided on the side of the pulley 206 facing the hoistway walls 102a.
- the elevator car and the counterweight device move up and down in the hoistway. In order to prevent the two from colliding when moving up and down, it is necessary to leave a certain distance between the horizontal projections of the two.
- the horizontal projection has a bent portion 222a at the lateral end of the upper cover 222 protruding outward from the horizontal projection of the bracket described above, and the horizontal projection of the bent portion 222a. Is close to the horizontal projection of the bracket described above.
- FIG. 4 is a plan view, it represents a horizontal projection of each part of the elevator 100.
- the maximum contour of the horizontal projection of the brackets described above is mainly the first.
- the upper cover 222 is made of a plate material.
- the horizontal projection (see FIG. 4) of the right side edge of the upper cover 222 in FIG. 3 protrudes from the maximum outline of the horizontal projection of the bracket described above. Protruding ". If the upper cover 222 is a flat plate, the lateral end on the right side will extend in the direction indicated by the broken line in FIG. If it becomes so, the space
- a bent portion 222a is formed at the right end of the upper cover 222, and the horizontal projection of the bent portion 222a is close to the horizontal projection of the bracket described above. .
- the formation of the bent portion 222a moved the right side end of the upper cover 222 from the position indicated by the broken line to the position indicated by the solid line.
- the horizontal projection of the bent portion 222a slightly protrudes from the maximum contour of the bracket horizontal projection described above, the protruding amount of the upper cover 222 protruding in the direction of the car 104 is greatly reduced. As a result, a necessary gap can be ensured between the counterweight device 106 (upper cover 222) and the car 104, and collision can be prevented.
- the horizontal projection has a bent part 224a at the right side end of the lower cover 224 protruding outward from the horizontal projection of the bracket described above, and the horizontal projection of the bent part 224a is Close to the horizontal projection of the bracket described above.
- the bent portion 224 a of the lower cover 224 has the same effect as the bent portion 222 a of the upper cover 222. That is, the amount of overhang of the lower cover 224 protruding in the direction of the car 104 can be greatly reduced, and a necessary gap dimension can be secured between the counterweight device 106 (lower cover 224) and the car 104, Collisions can be prevented.
- the hoistway is narrow and the rotation plane of the pulley of the counterweight device has a predetermined angle ⁇ between the longitudinal direction of the upper frame, the required clearance dimension between the counterweight device and the car is required. It is possible to prevent the operator's fingers and the like from being caught in the pulley by installing the anti-rolling cover while securing the above.
- the wrapping prevention cover 220 is divided into the upper cover 222 and the lower cover 224 in the vertical direction, when the wrapping prevention cover 220 is attached, the interval between the wrapping prevention cover 220 and the pulley 206 can be easily adjusted. It can. Specifically, first, the lower cover 224 can be attached. At this time, since the interval between the bent portion 224a of the lower cover 224 and the pulley 206 can be directly seen from above the lower cover 224, the interval between the bent portion 224a and the pulley 206 can be easily set within an appropriate interval range. Can be adjusted. When the upper cover 222 is attached, the bent portion 222a of the upper cover 222 has substantially the same bending angle or the same curve as the bent portion 224a of the lower cover 224.
- the outer surface is adjusted to be substantially the same as the outer surface of the bent portion 224a of the lower cover 224, the inner surface of the bent portion 222a also approaches the inner surface of the bent portion 224a. Accordingly, the distance between the bent portion 222a of the upper cover 222 and the pulley 206 can be easily set to an appropriate distance range. Moreover, since the space
- winding prevention cover 220 is divided into the upper cover 222 and the lower cover 224 in the vertical direction, when checking the distance between the rope detachment prevention plate 232 and the pulley 206, and the distance between the rope detachment prevention plate 234 and the pulley 206. Can be confirmed and removed by simply removing the upper cover 222, and the inspection efficiency can be improved. In addition, when exchanging the rope 108, since it can replace
- the outer surface of the bent portion 224a of the lower cover 224 is adjusted to be substantially the same as the outer surface of the bent portion 222a of the upper cover 222, the bent portion 224a and the pulley 206
- the interval can be easily set to an appropriate interval range.
- the present invention is not limited to the above-described embodiments, and includes various modifications.
- the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described.
- a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment.
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
An elevator including an elevator car that ascends and descends in a hoistway, a counterweight device linked to the elevator car by way of a rope, and a hoisting machine that drives the elevator car and the counterweight device by way of the rope, wherein the elevator is characterized in that the counterweight device is provided with: a pulley in which a rotary surface has a prescribed angle relative to the length direction of an upper frame, and on which the rope is wound about, the pulley being provided to the upper frame of a counterweight frame via a bracket; and an entanglement-preventing cover that is configured from a plurality of partial covers separable in the vertical direction, is secured to the bracket, and covers a side surface of the pulley, the entanglement-preventing cover having a bend part at an end part lateral to the partial covers such that a horizontal projection protrudes outward from a horizontal projection of the bracket, and being such that the horizontal projection of the bend part is adjacent to the horizontal projection of the bracket.
Description
本発明は、エレベータに関する。
The present invention relates to an elevator.
現在、最も普及されているエレベータはトラクション式エレベータである。トラクション式エレベータにおいては、巻上機がロープを通じて乗りかごと釣合重り装置を駆動する。ロープの掛け方によって、エレベータの釣合重り装置にプーリが設けられることがある。一部の国家又は地域の安全基準によれば、作業員の指等の巻込みを防止するために、当該プーリをカバーなどによって覆うことが求められている。
Currently, the most popular elevator is a traction type elevator. In the traction type elevator, the hoisting machine drives the car and the balance weight device through the rope. Depending on how the rope is hung, a pulley may be provided in the elevator balancing weight device. According to some national or regional safety standards, it is required to cover the pulley with a cover or the like in order to prevent the operator's fingers from being caught.
特許文献1が公開した釣合重り装置においては、プーリが溝形鋼から形成された釣合重り枠の上枠部20と縦枠部18の溝の中に設けられている(該公報図1参照)。この構造では、上枠部20と縦枠部18がプーリの側面と上方部を覆うことができるので、作業員の指等がプーリに巻き込まれることを防ぐことができる。当該公報の図1に示されたように、この釣合重り装置においては、プーリの回転平面が上枠部20の長手方向と平行する。よって、プーリの厚さが上枠部20と縦枠部18の溝幅より小さければ、そのプーリを上枠部20と縦枠部18の溝の中に設置することができ、上枠部20と縦枠部18を安全カバーとして使うことができる。
In the counterweight device disclosed in Patent Document 1, a pulley is provided in a groove between an upper frame portion 20 and a vertical frame portion 18 of a counterweight frame formed of channel steel (the publication FIG. 1). reference). In this structure, since the upper frame part 20 and the vertical frame part 18 can cover the side surface and the upper part of the pulley, it is possible to prevent an operator's finger or the like from being caught in the pulley. As shown in FIG. 1 of this publication, in this counterweight device, the rotation plane of the pulley is parallel to the longitudinal direction of the upper frame portion 20. Therefore, if the pulley thickness is smaller than the groove width of the upper frame portion 20 and the vertical frame portion 18, the pulley can be installed in the groove of the upper frame portion 20 and the vertical frame portion 18, and the upper frame portion 20 And the vertical frame 18 can be used as a safety cover.
ここにおいて、「回転平面」とは、プーリの回転軸から離れた点が回転時に描いた軌跡(円)が載る平面をいう。回転平面の法線はプーリの回転軸に平行する。一つのプーリには無数の回転平面があるが、これらの回転平面が互いに平行するので、プーリの回転平面の方向を検討するとき、そのうち何れか一つの回転平面について検討すればよい。
Here, the “rotation plane” means a plane on which a locus (circle) drawn at the time of rotation at a point away from the rotation axis of the pulley is placed. The normal of the plane of rotation is parallel to the rotation axis of the pulley. One pulley has an infinite number of rotation planes, and these rotation planes are parallel to each other. Therefore, when examining the direction of the rotation plane of the pulley, one of the rotation planes may be considered.
エレベータの昇降路が狭い場合、例えば機械室レスエレベータの昇降路において、狭い空間内で乗りかご、釣合重り装置、巻上機など各種装置を設置しなければならない。この場合、ロープの走行方向と角度などについて巧みに且つ合理的に設計し、ロープが通るプーリを使ってロープの走行方向と角度を調整する必要がある。したがって、場合によってプーリの回転平面が釣合重り枠の上枠部の長手方向と所定の角度を形成するようにプーリを設置しなければならない。このような場合には、上枠部の幅方向にプーリが占める空間が大きくなるので、プーリを上枠部と縦枠部の溝の中に設置することができなくなる。プーリのために専用の箱型の安全カバーを設ける考えもあるが、箱型になると安全カバーの水平投影が釣合重り装置の他の部分の水平投影から大きくはみだすことになる。そうなると、釣合重り装置が上下移動するとき、安全カバーと昇降路内の他の装置など(例えば、乗りかご)との間に必要隙間寸法を確保することができず、衝突しやすくなる。
When the elevator hoistway is narrow, for example, in a machine room-less elevator hoistway, various devices such as a car, a counterweight device, and a hoisting machine must be installed in a narrow space. In this case, it is necessary to skillfully and rationally design the traveling direction and angle of the rope and adjust the traveling direction and angle of the rope using a pulley through which the rope passes. Therefore, in some cases, it is necessary to install the pulley so that the rotation plane of the pulley forms a predetermined angle with the longitudinal direction of the upper frame portion of the counterweight frame. In such a case, since the space occupied by the pulley in the width direction of the upper frame portion increases, the pulley cannot be installed in the groove between the upper frame portion and the vertical frame portion. There is an idea of providing a dedicated box-type safety cover for the pulley, but when the box-type is used, the horizontal projection of the safety cover greatly protrudes from the horizontal projection of the other parts of the counterweight device. Then, when the counterweight device moves up and down, a necessary gap dimension cannot be ensured between the safety cover and other devices (for example, a car) in the hoistway, and collision easily occurs.
そこで、本発明の目的は、作業員の指等がプーリに巻き込まれることを防止できると同時に、釣合重り装置と他の装置との間に必要隙間寸法を確保できるエレベータを提供することにある。
Accordingly, an object of the present invention is to provide an elevator that can prevent a worker's finger or the like from being caught in a pulley, and at the same time, can secure a necessary gap size between a counterweight device and another device. .
前記目的を達成するために、本発明にかかるエレベータは、昇降路を昇降する乗りかごと、ロープを通じて前記乗りかごと繋がっている釣合重り装置と、前記ロープを通じて前記乗りかご及び前記釣合重り装置を駆動する巻上機と、を含むエレベータにおいて、前記釣合重り装置は、ブラケットをよって釣合重り枠の上枠に設けられ、回転平面が前記上枠の長手方向との間に所定の角度を有し、前記ロープが巻き掛けられるプーリと、縦方向で分離可能な複数の板状部分カバーによって構成され、前記ブラケットに固定され、前記プーリの側面を覆う巻込防止カバーであって、水平投影が前記ブラケットの水平投影から外側に向かって突出する各前記部分カバーの横の端部に折曲部を有し、前記折曲部の水平投影が前記ブラケットの水平投影に近接する巻込防止カバーと、を備える。
In order to achieve the above object, an elevator according to the present invention includes a car that moves up and down a hoistway, a balance weight device that is connected to the car through a rope, and the car and the balance weight that are connected through the rope. An elevator including a hoist for driving the device, wherein the balance weight device is provided on an upper frame of the balance weight frame by means of a bracket, and a rotation plane is in a predetermined interval between the longitudinal direction of the upper frame. It is constituted by a pulley around which the rope is wound, and a plurality of plate-shaped partial covers separable in the vertical direction, and is a wrap-around prevention cover that is fixed to the bracket and covers the side surface of the pulley, A horizontal projection has a bent portion at a lateral end of each partial cover projecting outward from the horizontal projection of the bracket, and the horizontal projection of the bent portion is a horizontal projection of the bracket. And a winding prevention cover adjacent to.
本発明にかかるエレベータが備える巻込防止カバーは、プーリの側面を覆い、作業員の指等がプーリに巻き込まれることを防止できる。当該巻込防止カバーの横の端部に、ブラケットに近接する折曲部があるので、巻込防止カバーがブラケットから外側(特に乗りかごの方向)に突出する張出量を低減して、巻込防止カバーと乗りかご又は他の機器との間に必要隙間寸法を確保することができ、衝突を防ぐことができる。
The wrap-around prevention cover provided in the elevator according to the present invention covers the side surface of the pulley, and can prevent the operator's finger or the like from being caught in the pulley. Since there is a bent part near the bracket at the side edge of the wrap-around prevention cover, the amount of overhang that the wrap-up prevention cover protrudes outward from the bracket (particularly in the direction of the car) is reduced. A necessary clearance dimension can be ensured between the slip-in prevention cover and the car or other equipment, and a collision can be prevented.
上記した以外の課題、構成及び効果は、以下の実施形態の説明により明らかにされる。
Issues, configurations, and effects other than those described above will be clarified by the following description of the embodiments.
以下、図面に基づき発明の実施の形態を通じて本発明を説明する。
Hereinafter, the present invention will be described through embodiments of the invention with reference to the drawings.
図1は本発明エレベータの一実施形態を概略的に示す模式図である。図1に示すように、エレベータ100は、昇降路102、乗りかご104、釣合重り装置106及び巻上機110を含む。エレベータ100は機械室レスエレベータであり、巻上機110が昇降路の中に設置されている。乗りかご104と釣合重り装置106は、ロープ108を通じて繋がっている。ロープ108は巻上機110の綱車に掛けられ、巻上機110はロープ108を通じて乗りかご104及び釣合重り装置106を駆動して、昇降路102内を昇降させる。
FIG. 1 is a schematic view schematically showing an embodiment of the elevator of the present invention. As shown in FIG. 1, the elevator 100 includes a hoistway 102, a car 104, a counterweight device 106, and a hoisting machine 110. The elevator 100 is a machine room-less elevator, and a hoisting machine 110 is installed in a hoistway. The car 104 and the counterweight device 106 are connected through a rope 108. The rope 108 is hung on the sheave of the hoisting machine 110, and the hoisting machine 110 drives the car 104 and the counterweight device 106 through the rope 108 to raise and lower the hoistway 102.
図2は本発明エレベータの釣合重り装置の構造を概略的に示す模式図である。図2は、左の正面図と右の右側面図から構成される。図示の通り、釣合重り装置106は、釣合重り枠202、重り204、プーリ206及び巻込防止カバー220を含む。釣合重り枠202は、主に二つの縦枠202a、上枠202b及び下枠202cによって構成される。釣合重り枠202の内側には、複数の重り204が載置されている。プーリ206は、複数のブラケットをよって上枠202bに設けられ、それにロープ108が巻き掛けられている。プーリ206の側面には、巻込防止カバー220が設けられている。
FIG. 2 is a schematic view schematically showing the structure of the balance weight device of the elevator of the present invention. FIG. 2 includes a left front view and a right right side view. As illustrated, the counterweight device 106 includes a counterweight frame 202, a weight 204, a pulley 206, and an anti-roll-up cover 220. The counterweight frame 202 is mainly composed of two vertical frames 202a, an upper frame 202b, and a lower frame 202c. A plurality of weights 204 are placed inside the balance weight frame 202. The pulley 206 is provided on the upper frame 202b with a plurality of brackets, and the rope 108 is wound around the pulley 206. An entrainment prevention cover 220 is provided on the side surface of the pulley 206.
図3は図2に示したプーリ近傍構造の拡大模式図である。図4は図2に示した釣合重り装置の平面図である。釣合重り装置106とエレベータの他の部分との相対位置関係を説明するために、図4において乗りかご104及び最も近い昇降路壁102aも示している。なお、図4にはプーリ206の回転平面400も2点鎖線で表示している。また、巻込防止カバー220の形状及びプーリ206を固定するブラケットの構造を分かりやすくするために、図5は図2に示した釣合重り装置から巻込防止カバーを外した状態を概略的に示す。
FIG. 3 is an enlarged schematic view of the pulley vicinity structure shown in FIG. 4 is a plan view of the counterweight device shown in FIG. To illustrate the relative positional relationship between the counterweight device 106 and other parts of the elevator, the car 104 and the nearest hoistway wall 102a are also shown in FIG. In FIG. 4, the rotation plane 400 of the pulley 206 is also indicated by a two-dot chain line. In order to make the shape of the anti-rolling cover 220 and the structure of the bracket for fixing the pulley 206 easy to understand, FIG. 5 schematically shows a state in which the anti-winding cover is removed from the counterweight device shown in FIG. Show.
図4に示すように、本実施形態において、プーリ206の回転平面400が上枠202bの長手方向との間に所定の角度θ(0°<θ<90°)を有する。角度θは、プーリ206によって設定すべきロープ108の走行方向と角度によって決められる。
As shown in FIG. 4, in the present embodiment, the rotation plane 400 of the pulley 206 has a predetermined angle θ (0 ° <θ <90 °) between the longitudinal direction of the upper frame 202b. The angle θ is determined by the traveling direction and angle of the rope 108 to be set by the pulley 206.
図2から図5に示すように、プーリ206は複数のブラケットによって上枠202bに取付けられている。当該ブラケットは、第1ブラケット212、第2ブラケット214、第3ブラケット215、第3ブラケット216及び第4ブラケット218を含む。第1ブラケット212は、ベース板であり、アングル及びボルト等によって上枠202bに固定されている。第2ブラケット214は、溝形鋼であり、その開口部が上向きにして第1ブラケット212に固定されている。板状の第3ブラケット215及び第3ブラケット216は、それぞれ第2ブラケット214の二つ溝壁に縦に固定されている。プーリ206は、第3ブラケット215と第3ブラケット216との間に設けられ、第3ブラケット215と第3ブラケット216によってその回転軸がサポートされている。第4ブラケット218は、溝形鋼であり、プーリ206を跨って、上方から第3ブラケット215と第3ブラケット216を連結する。第4ブラケット218は、二つの第3ブラケットに対するサポートを強化するだけでなく、作業員の指等の巻込みを防止することもでき、カバーとなってプーリ206に落ちる埃を遮ることもできる。
As shown in FIGS. 2 to 5, the pulley 206 is attached to the upper frame 202b by a plurality of brackets. The bracket includes a first bracket 212, a second bracket 214, a third bracket 215, a third bracket 216, and a fourth bracket 218. The first bracket 212 is a base plate, and is fixed to the upper frame 202b by an angle, a bolt, or the like. The second bracket 214 is channel steel and is fixed to the first bracket 212 with its opening facing upward. The plate-like third bracket 215 and the third bracket 216 are vertically fixed to the two groove walls of the second bracket 214, respectively. The pulley 206 is provided between the third bracket 215 and the third bracket 216, and the rotation axis thereof is supported by the third bracket 215 and the third bracket 216. The fourth bracket 218 is channel steel and connects the third bracket 215 and the third bracket 216 from above over the pulley 206. The fourth bracket 218 not only reinforces the support for the two third brackets, but can also prevent the operator's fingers and the like from being caught, and can also cover the dust falling on the pulley 206 as a cover.
図3及び図4に示すように、プーリ206の左右の縁部付近には、それぞれロープ外れ防止板232とロープ外れ防止板234が設けられている。プーリ206の左右の縁部は、それぞれロープ108がプーリ206の綱溝に進入する部位と綱溝を離れる部位である。これらの部位において、ロープ108がプーリ206の綱溝から外れしやすい。ロープ外れ防止板232とロープ外れ防止板234を設けることによって、ロープ108がプーリ206の綱溝から外れることを防ぐことができる。また、プーリ206に落ちる埃を遮るために、第4ブラケット218の左右両端部に、それぞれ防塵カバー236と防塵カバー238が設けられている。
3 and 4, a rope detachment prevention plate 232 and a rope detachment prevention plate 234 are provided near the left and right edges of the pulley 206, respectively. The left and right edges of the pulley 206 are a part where the rope 108 enters the rope groove of the pulley 206 and a part where the rope 108 leaves the rope groove. At these portions, the rope 108 is easily detached from the rope groove of the pulley 206. By providing the rope detachment prevention plate 232 and the rope detachment prevention plate 234, it is possible to prevent the rope 108 from detaching from the rope groove of the pulley 206. In addition, a dustproof cover 236 and a dustproof cover 238 are provided at both left and right ends of the fourth bracket 218 in order to block dust falling on the pulley 206.
本明細書において、構成要素の方位、位置等を表すときに使う「上」、「下」、「左」、「右」などの表現は、基本的に図面における構成要素間の相対的な方位、位置等を表すものであり、特に断らない限り絶対的な位置を示すことを意図したものではない。
In this specification, expressions such as “up”, “down”, “left”, and “right” used to indicate the orientation, position, etc. of components are basically relative orientations between components in the drawings. Represents a position, etc., and is not intended to indicate an absolute position unless otherwise specified.
図2と図3に示すように、本実施形態エレベータの釣合重り装置106の最大の特徴は、巻込防止カバー220が設けられていることである。巻込防止カバー220は、縦方向で分離可能な二つの部分カバー、すなわち上部カバー222と下部カバー224によって構成される。上部カバー222及び下部カバー224は板状である。上部カバー222及び下部カバー224はボルトによって第3ブラケット215に固定されており、プーリ206の一側面(乗りかご104に面する側面)を覆う。それによって、作業員の指等がプーリ206とロープ108の間に巻き込まれることを防ぐ。板状の巻込防止カバー220は、構造が簡単で、コストが低い。
As shown in FIGS. 2 and 3, the greatest feature of the balance weight device 106 of the elevator according to the present embodiment is that a wrap-around prevention cover 220 is provided. The entrainment prevention cover 220 includes two partial covers that are separable in the vertical direction, that is, an upper cover 222 and a lower cover 224. The upper cover 222 and the lower cover 224 are plate-shaped. The upper cover 222 and the lower cover 224 are fixed to the third bracket 215 by bolts, and cover one side surface (side surface facing the car 104) of the pulley 206. This prevents an operator's finger or the like from being caught between the pulley 206 and the rope 108. The plate-shaped wrap-around prevention cover 220 has a simple structure and is low in cost.
本実施形態において、プーリ206のもう一方の側面が昇降路壁102aに面しており、なお釣合重り装置106と昇降路壁102aとの間隔が小さくて、作業員が釣合重り装置106と昇降路壁102aの間に入って作業することはないので、プーリ206の昇降路壁102aに面する側には巻込防止カバーを設けていない。
In the present embodiment, the other side surface of the pulley 206 faces the hoistway wall 102a, and the distance between the counterweight device 106 and the hoistway wall 102a is small, so that an operator can connect with the counterweight device 106. Since there is no work between the hoistway walls 102a, no wrapping prevention cover is provided on the side of the pulley 206 facing the hoistway walls 102a.
周知のとおり、エレベータの乗りかごと釣合重り装置が昇降路において上下に移動する。上下移動時に両者が衝突しないようにするためには、両者の水平投影の間には一定以上の間隔をあける必要がある。
As is well known, the elevator car and the counterweight device move up and down in the hoistway. In order to prevent the two from colliding when moving up and down, it is necessary to leave a certain distance between the horizontal projections of the two.
図3と図4に示すように、水平投影が前述したブラケットの水平投影から外側に向かって突出する上部カバー222の横の端部に折曲部222aを有し、折曲部222aの水平投影が前述したブラケットの水平投影に近接する。
As shown in FIGS. 3 and 4, the horizontal projection has a bent portion 222a at the lateral end of the upper cover 222 protruding outward from the horizontal projection of the bracket described above, and the horizontal projection of the bent portion 222a. Is close to the horizontal projection of the bracket described above.
次に、図3と図4に基づいてこの部分の内容を具体的に説明する。図4は、平面図なので、エレベータ100の各部分の水平投影を表す。図4に示すように、前述したブラケット(第1ブラケット212、第2ブラケット214、第3ブラケット215、第3ブラケット216及び第4ブラケット218を含む)の水平投影の最大の輪郭は、主に第1ブラケット212の水平投影、及び第1ブラケット212の水平投影の範囲からはみ出した第4ブラケット218の一つの角(図4において下方に向く角)の水平投影から構成される。
Next, the contents of this part will be described in detail based on FIG. 3 and FIG. Since FIG. 4 is a plan view, it represents a horizontal projection of each part of the elevator 100. As shown in FIG. 4, the maximum contour of the horizontal projection of the brackets described above (including the first bracket 212, the second bracket 214, the third bracket 215, the third bracket 216, and the fourth bracket 218) is mainly the first. The horizontal projection of the first bracket 212 and the horizontal projection of one corner of the fourth bracket 218 that protrudes from the range of the horizontal projection of the first bracket 212 (the angle facing downward in FIG. 4).
上部カバー222は板材によって構成される。図3における上部カバー222の右側の横の端部の水平投影(図4参照)は、前述したブラケットの水平投影の最大輪郭からはみ出しており、すなわち「前述したブラケットの水平投影から外側に向かって突出する」。もし上部カバー222が平の板であれば、右側の横の端部が図4の破線で示した方向に延びることになる。そうなると、釣合重り装置106(上部カバー222)と乗りかご104との間隔が狭くなり、両者が衝突する危険性が高くなる。この問題を解決するために、本実施形態において、上部カバー222の右側の横の端部に折曲部222aが形成され、当該折曲部222aの水平投影が前述したブラケットの水平投影に近接する。
The upper cover 222 is made of a plate material. The horizontal projection (see FIG. 4) of the right side edge of the upper cover 222 in FIG. 3 protrudes from the maximum outline of the horizontal projection of the bracket described above. Protruding ". If the upper cover 222 is a flat plate, the lateral end on the right side will extend in the direction indicated by the broken line in FIG. If it becomes so, the space | interval of the counterweight apparatus 106 (upper cover 222) and the passenger car 104 will become narrow, and the danger that both will collide will become high. In order to solve this problem, in this embodiment, a bent portion 222a is formed at the right end of the upper cover 222, and the horizontal projection of the bent portion 222a is close to the horizontal projection of the bracket described above. .
図4の矢印が示すように、折曲部222aの形成によって、上部カバー222の右側の横の端部は破線で示した位置から実線で示した位置に移動した。折曲部222aの水平投影も前述したブラケットの水平投影の最大輪郭から少しはみ出しているが、乗りかご104の方向に突出する上部カバー222の張出量が大幅に減少した。それによって、釣合重り装置106(上部カバー222)と乗りかご104との間に必要隙間寸法を確保することができ、衝突を防ぐことができる。
As shown by the arrows in FIG. 4, the formation of the bent portion 222a moved the right side end of the upper cover 222 from the position indicated by the broken line to the position indicated by the solid line. Although the horizontal projection of the bent portion 222a slightly protrudes from the maximum contour of the bracket horizontal projection described above, the protruding amount of the upper cover 222 protruding in the direction of the car 104 is greatly reduced. As a result, a necessary gap can be ensured between the counterweight device 106 (upper cover 222) and the car 104, and collision can be prevented.
図3に示すように、水平投影が前述したブラケットの水平投影から外側に向かって突出する下部カバー224の右側の横の端部に折曲部224aを有し、折曲部224aの水平投影が前述したブラケットの水平投影に近接する。上部カバー222の折曲部222aの水平投影と下部カバー224の折曲部224aの水平投影が重なり合う。それは、下部カバー224の折曲部224aの水平投影が、実質的に上部カバー222の折曲部222aの水平投影と同じ形状の変化を有することをいう。例えば、実質的に同じ折曲角度又は同じカーブを有することをいう。下部カバー224の折曲部224aは、上部カバー222の折曲部222aと同じ効果を有する。すなわち、下部カバー224が乗りかご104の方向に突出する張出量を大幅に減らし、釣合重り装置106(下部カバー224)と乗りかご104との間に必要隙間寸法を確保することができ、衝突を防ぐことができる。
As shown in FIG. 3, the horizontal projection has a bent part 224a at the right side end of the lower cover 224 protruding outward from the horizontal projection of the bracket described above, and the horizontal projection of the bent part 224a is Close to the horizontal projection of the bracket described above. The horizontal projection of the bent portion 222a of the upper cover 222 and the horizontal projection of the bent portion 224a of the lower cover 224 overlap. That is, the horizontal projection of the bent portion 224a of the lower cover 224 has substantially the same shape change as the horizontal projection of the bent portion 222a of the upper cover 222. For example, it means having substantially the same bending angle or the same curve. The bent portion 224 a of the lower cover 224 has the same effect as the bent portion 222 a of the upper cover 222. That is, the amount of overhang of the lower cover 224 protruding in the direction of the car 104 can be greatly reduced, and a necessary gap dimension can be secured between the counterweight device 106 (lower cover 224) and the car 104, Collisions can be prevented.
よって、昇降路が狭く、釣合重り装置のプーリの回転平面が上枠の長手方向との間に所定の角度θを有しても、釣合重り装置と乗りかごとの間に必要隙間寸法を確保しながら巻込防止カバーを設置して、作業員の指等がプーリに巻き込まれることを防ぐことができる。
Therefore, even if the hoistway is narrow and the rotation plane of the pulley of the counterweight device has a predetermined angle θ between the longitudinal direction of the upper frame, the required clearance dimension between the counterweight device and the car is required. It is possible to prevent the operator's fingers and the like from being caught in the pulley by installing the anti-rolling cover while securing the above.
なお、巻込防止カバー220が縦方向で上部カバー222と下部カバー224に分かれているので、巻込防止カバー220を取付けるときに、巻込防止カバー220とプーリ206との間隔の調整が容易にできる。具体的には、まず下部カバー224を取付けることができる。このとき、下部カバー224の上方から、下部カバー224の折曲部224aとプーリ206との間隔を直接見ることができるので、折曲部224aとプーリ206との間隔を容易に適切な間隔範囲に調整することができる。上部カバー222を取付ける場合には、上部カバー222の折曲部222aが下部カバー224の折曲部224aと実質的に同じ折曲角度又は同じカーブを有するので、上部カバー222の折曲部222aの外面を下部カバー224の折曲部224aの外面とほぼ同じ面になるように調整すれば、折曲部222aの内面も折曲部224aの内面に近づくことになる。それによって、上部カバー222の折曲部222aとプーリ206との間隔も容易に適切な間隔範囲にすることができる。また、エレベータ点検時に、上部カバー222を取り外すだけで、下部カバー224の折曲部224aとプーリ206との間隔を確認することができるので、その隙間寸法の点検が容易にできる。
In addition, since the wrapping prevention cover 220 is divided into the upper cover 222 and the lower cover 224 in the vertical direction, when the wrapping prevention cover 220 is attached, the interval between the wrapping prevention cover 220 and the pulley 206 can be easily adjusted. it can. Specifically, first, the lower cover 224 can be attached. At this time, since the interval between the bent portion 224a of the lower cover 224 and the pulley 206 can be directly seen from above the lower cover 224, the interval between the bent portion 224a and the pulley 206 can be easily set within an appropriate interval range. Can be adjusted. When the upper cover 222 is attached, the bent portion 222a of the upper cover 222 has substantially the same bending angle or the same curve as the bent portion 224a of the lower cover 224. If the outer surface is adjusted to be substantially the same as the outer surface of the bent portion 224a of the lower cover 224, the inner surface of the bent portion 222a also approaches the inner surface of the bent portion 224a. Accordingly, the distance between the bent portion 222a of the upper cover 222 and the pulley 206 can be easily set to an appropriate distance range. Moreover, since the space | interval of the bending part 224a of the lower cover 224 and the pulley 206 can be confirmed only by removing the upper cover 222 at the time of elevator inspection, the inspection of the clearance dimension can be performed easily.
巻込防止カバー220が縦方向で上部カバー222と下部カバー224に分かれているので、ロープ外れ防止板232とプーリ206との間隔を点検する場合、及びロープ外れ防止板234とプーリ206との間隔を点検する場合、上部カバー222を取り外すだけで、確認点検ができ、点検効率を高めることができる。なお、ロープ108を交換するとき、下部カバー224を取り外すだけで交換できるので、作業効率を高めることができる。取り外した下部カバー224を取付ける場合、下部カバー224の折曲部224aの外面を上部カバー222の折曲部222aの外面とほぼ同じ面になるように調整すれば、折曲部224aとプーリ206との間隔を容易に適切な間隔範囲にすることができる。
Since the winding prevention cover 220 is divided into the upper cover 222 and the lower cover 224 in the vertical direction, when checking the distance between the rope detachment prevention plate 232 and the pulley 206, and the distance between the rope detachment prevention plate 234 and the pulley 206. Can be confirmed and removed by simply removing the upper cover 222, and the inspection efficiency can be improved. In addition, when exchanging the rope 108, since it can replace | exchange only by removing the lower cover 224, work efficiency can be improved. When attaching the removed lower cover 224, if the outer surface of the bent portion 224a of the lower cover 224 is adjusted to be substantially the same as the outer surface of the bent portion 222a of the upper cover 222, the bent portion 224a and the pulley 206 The interval can be easily set to an appropriate interval range.
本発明は上記した実施例に限定されるものではなく、様々な変形例が含まれる。例えば、上記した実施例は本発明を分かりやすく説明するために詳細に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。また、ある実施例の構成の一部を他の実施例の構成に置き換えることが可能であり、また、ある実施例の構成に他の実施例の構成を加えることも可能である。また、各実施例の構成の一部について、他の構成の追加・削除・置換をすることが可能である。
The present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.
100 エレベータ
102 昇降路
102a 昇降路壁
104 乗りかご
106 釣合重り装置
108 ロープ
110 巻上機
202 釣合重り枠
202a 縦枠
202b 上枠
202c 下枠
204 重り
206 プーリ
212 第1ブラケット
214 第2ブラケット
215 第3ブラケット
216 第3ブラケット
218 第4ブラケット
220 巻込防止カバー
222 上部カバー
222a 折曲部
224 下部カバー
224a 折曲部
232 ロープ外れ防止板
234 ロープ外れ防止板
236 防塵カバー
238 防塵カバー
400 回転平面 DESCRIPTION OFSYMBOLS 100 Elevator 102 Hoistway 102a Hoistway wall 104 Ride car 106 Balance weight device 108 Rope 110 Hoisting machine 202 Balance weight frame 202a Vertical frame 202b Upper frame 202c Lower frame 204 Weight 206 Pulley 212 First bracket 214 Second bracket 215 Third bracket 216 Third bracket 218 Fourth bracket 220 Entrainment prevention cover 222 Upper cover 222a Bending portion 224 Lower cover 224a Bending portion 232 Rope detachment prevention plate 234 Rope detachment prevention plate 236 Dust proof cover 238 Dust proof cover 400 Rotation plane
102 昇降路
102a 昇降路壁
104 乗りかご
106 釣合重り装置
108 ロープ
110 巻上機
202 釣合重り枠
202a 縦枠
202b 上枠
202c 下枠
204 重り
206 プーリ
212 第1ブラケット
214 第2ブラケット
215 第3ブラケット
216 第3ブラケット
218 第4ブラケット
220 巻込防止カバー
222 上部カバー
222a 折曲部
224 下部カバー
224a 折曲部
232 ロープ外れ防止板
234 ロープ外れ防止板
236 防塵カバー
238 防塵カバー
400 回転平面 DESCRIPTION OF
Claims (2)
- 昇降路を昇降する乗りかごと、ロープを通じて前記乗りかごと繋がっている釣合重り装置と、前記ロープを通じて前記乗りかご及び前記釣合重り装置を駆動する巻上機と、を含むエレベータにおいて、
前記釣合重り装置は、
ブラケットをよって釣合重り枠の上枠に設けられ、回転平面が前記上枠の長手方向との間に所定の角度を有し、前記ロープが巻き掛けられるプーリと、
縦方向で分離可能な複数の板状部分カバーによって構成され、前記ブラケットに固定され、前記プーリの側面を覆う巻込防止カバーであって、水平投影が前記ブラケットの水平投影から外側に向かって突出する各前記部分カバーの横の端部に折曲部を有し、前記折曲部の水平投影が前記ブラケットの水平投影に近接する巻込防止カバーと、
を備える
ことを特徴とするエレベータ。 In an elevator including a car that moves up and down the hoistway, a balance weight device that is connected to the car through a rope, and a hoist that drives the car and the balance weight device through the rope,
The counterweight device is
A pulley provided on the upper frame of the counterweight frame by a bracket, a rotation plane having a predetermined angle with the longitudinal direction of the upper frame, and a pulley around which the rope is wound;
It is constituted by a plurality of plate-shaped partial covers that can be separated in the vertical direction, is fixed to the bracket and covers the side surface of the pulley, and the horizontal projection projects outward from the horizontal projection of the bracket. An entrainment prevention cover having a bent portion at a lateral end of each of the partial covers, wherein the horizontal projection of the bent portion is close to the horizontal projection of the bracket;
An elevator characterized by comprising: - 請求項1に記載のエレベータにおいて、
前記巻込防止カバーは、縦方向で分離可能な二つの前記部分カバーによって構成され、当該二つの前記部分カバーの折曲部の水平投影が重なり合う
ことを特徴とするエレベータ。 The elevator according to claim 1,
The said winding prevention cover is comprised by the two said partial covers separable in the vertical direction, The horizontal projection of the bending part of the said two said partial covers overlaps, The elevator characterized by the above-mentioned.
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JP2019514560A JP6770183B2 (en) | 2017-04-27 | 2018-04-25 | elevator |
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CN201710286574.3A CN108792863B (en) | 2017-04-27 | 2017-04-27 | Elevator with a movable elevator car |
CN201710286574.3 | 2017-04-27 |
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JPS6047781U (en) * | 1984-05-16 | 1985-04-04 | 株式会社日立製作所 | elevator |
EP1333000A1 (en) * | 2002-02-05 | 2003-08-06 | Monitor S.p.A. | A machine-roomless traction sheave elevator |
JP2006027904A (en) * | 2004-07-17 | 2006-02-02 | Inventio Ag | Elevator installation having flat belt type suspension means arranged in parallel |
EP2781481A1 (en) * | 2013-03-19 | 2014-09-24 | Kone Corporation | A counterweight arrangement for an elevator |
CN204938688U (en) * | 2015-07-24 | 2016-01-06 | 中奥电梯有限公司 | A kind of counterweight wheel assembly |
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TWI222954B (en) * | 2002-12-11 | 2004-11-01 | Yung Tay Engineering Co Ltd | Elevator system without a control room |
JP2013049530A (en) * | 2011-08-31 | 2013-03-14 | Toshiba Elevator Co Ltd | Connecting fitting and counterweight comprising the same |
CN203855291U (en) * | 2014-03-25 | 2014-10-01 | 西尼电梯(杭州)有限公司 | Elevator counterweight device |
CN203922397U (en) * | 2014-06-26 | 2014-11-05 | 浙江飞亚电梯有限公司 | A kind of elevator counterweight |
CN204588414U (en) * | 2015-01-14 | 2015-08-26 | 浙江诺比克电梯有限公司 | A kind of counterweight housing of elevator |
-
2017
- 2017-04-27 CN CN201710286574.3A patent/CN108792863B/en active Active
-
2018
- 2018-04-25 JP JP2019514560A patent/JP6770183B2/en active Active
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6047781U (en) * | 1984-05-16 | 1985-04-04 | 株式会社日立製作所 | elevator |
EP1333000A1 (en) * | 2002-02-05 | 2003-08-06 | Monitor S.p.A. | A machine-roomless traction sheave elevator |
JP2006027904A (en) * | 2004-07-17 | 2006-02-02 | Inventio Ag | Elevator installation having flat belt type suspension means arranged in parallel |
EP2781481A1 (en) * | 2013-03-19 | 2014-09-24 | Kone Corporation | A counterweight arrangement for an elevator |
CN204938688U (en) * | 2015-07-24 | 2016-01-06 | 中奥电梯有限公司 | A kind of counterweight wheel assembly |
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CN108792863A (en) | 2018-11-13 |
JP6770183B2 (en) | 2020-10-14 |
CN108792863B (en) | 2020-03-24 |
JPWO2018199134A1 (en) | 2020-01-23 |
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