WO2018198231A1 - Palan d'ascenseur - Google Patents
Palan d'ascenseur Download PDFInfo
- Publication number
- WO2018198231A1 WO2018198231A1 PCT/JP2017/016554 JP2017016554W WO2018198231A1 WO 2018198231 A1 WO2018198231 A1 WO 2018198231A1 JP 2017016554 W JP2017016554 W JP 2017016554W WO 2018198231 A1 WO2018198231 A1 WO 2018198231A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- brake
- main shaft
- brake drum
- brake unit
- axis
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 34
- 238000012423 maintenance Methods 0.000 claims description 38
- 238000003825 pressing Methods 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 2
- 239000000725 suspension Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
Images
Classifications
-
- 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
Definitions
- the present invention relates to an elevator hoisting machine having a brake unit that applies a braking force to a brake drum.
- an elevator hoisting machine in which a pair of brake units are arranged on both right and left sides of a brake drum is known.
- the pair of brake units apply braking force to the brake drum by bringing the friction member into contact with the outer peripheral surface of the brake drum from both sides in the horizontal direction of the brake drum and pressing the friction member toward the axis of the brake drum (for example, patents) Reference 1).
- the present invention has been made to solve the above-described problems, and an object thereof is to obtain an elevator hoisting machine that can be reduced in size and weight.
- An elevator hoisting machine includes a horizontally disposed main shaft, a brake drum that can rotate around the axis of the main shaft, a motor that rotates the brake drum, and a movable member. And a housing that supports the main shaft, brake drum, motor, and brake unit.
- the brake unit controls the brake drum by pressing the movable member diagonally upward on the outer peripheral surface of the brake drum. Give power.
- the movable member can be pressed against the brake drum in a direction against the downward load received by the main shaft, and the load on the main shaft can be reduced.
- the weight of the main shaft can be reduced, and the weight of the hoist can be reduced.
- the brake unit can be arranged obliquely downward as viewed from the axis of the main shaft, the amount of protrusion of the brake unit to the outer side in the horizontal direction and the upper and lower direction of the brake drum can be reduced, and the hoisting machine can be downsized. Can be achieved.
- FIG. 1 It is a block diagram which shows the elevator by Embodiment 1 of this invention. It is a front view which shows the winding machine of FIG. It is a rear view which shows the winding machine of FIG. It is a side view which shows the winding machine of FIG.
- FIG. 1 is a block diagram showing an elevator according to Embodiment 1 of the present invention.
- a car 1 and a counterweight 2 are suspended by a plurality of cords 3 in a hoistway.
- the cord-like body 3 for example, a rope or a belt is used.
- an elevator hoisting machine 4 (hereinafter simply referred to as “hoisting machine 4”), a first leashing device 5 and a second leashing device 6 are provided in the upper part of the hoistway.
- the hoisting machine 4 generates a driving force that moves the car 1 and the counterweight 2 in the vertical direction.
- a pair of car suspension cars 7 is provided at the lower part of the car 1, and a counterweight suspension car 8 is provided at the upper part of the counterweight 2.
- One end portion of the cord-like body 3 is connected to the first rope stopping device 5, and the other end portion of the rope-like body 3 is connected to the second rope fastening device 6.
- the cord-like body 3 is wound from the first leashing device 5 to the second leashing device 6 in the order of a pair of the car suspension wheel 7, the hoisting machine 4, and the counterweight hoisting wheel 8. .
- the suspension system of the car 1 and the counterweight 2 by the cord-like body 3 is a 2: 1 roping system.
- FIG. 2 is a front view showing the hoisting machine 4 in FIG. 1
- FIG. 3 is a rear view showing the hoisting machine 4 in FIG. 2
- FIG. 4 is a side view showing the hoisting machine 4 in FIG.
- the hoisting machine 4 rotates the main shaft 11, the brake drum 12 that can rotate around the axis of the main shaft 11, the drive sheave 13 that rotates integrally with the brake drum 12, and the brake drum 12 and the drive sheave 13.
- a motor 14, a plurality of brake units 15 that apply braking force to the brake drum 12 and the drive sheave 13, and a housing 16 that supports the main shaft 11, the brake drum 12, the drive sheave 13, the motor 14 and the plurality of brake units 15. have.
- main shaft 11 One end and the other end of the main shaft 11 are fixed to the housing 16. Thereby, the main shaft 11 is supported by the housing 16 at each of one end and the other end of the main shaft 11. Moreover, the main shaft 11 is disposed horizontally.
- the brake drum 12 includes a cylindrical boss portion 121 through which the main shaft 11 passes, a cylindrical drum outer peripheral portion 122 disposed radially outside the boss portion 121, and the boss portion 121 and the drum outer peripheral portion 122. It has a plate-like drum flange portion 123 that connects them.
- a bearing is interposed between the outer peripheral surface of the main shaft 11 and the inner peripheral surface of the boss 121.
- the brake drum 12 is rotatably attached to the main shaft 11 via a bearing.
- the outer peripheral surface 122 a of the drum outer peripheral portion 122 is a cylindrical surface centered on the axis of the main shaft 11.
- the driving sheave 13 is rotatable about the axis of the main shaft 11.
- the drive sheave 13 is disposed at a position closer to the other end portion of the main shaft 11 than the drum flange portion 123.
- the driving sheave 13 is fixed to the boss 121.
- the outer diameter of the drive sheave 13 is smaller than the outer diameter of the brake drum 12.
- a groove 132 into which the cable-like body 3 is fitted is provided along the circumferential direction of the driving sheave 13.
- the cord-like body 3 is wound around the outer periphery of the drive sheave 13 along the groove 132. Further, the cord-like body 3 wound around the outer periphery of the drive sheave 13 extends downward from the drive sheave 13 as shown in FIG. Thereby, the direction of the load which the main shaft 11 receives from the cord-like body 3 is downward.
- the car 1 and the counterweight 2 move in the vertical direction in the hoistway when the driving sheave 13 rotates.
- the motor 14 is disposed at a position closer to one end portion of the main shaft 11 than the drum flange portion 123.
- the motor 14 includes a cylindrical stator and a cylindrical rotor that rotates with respect to the stator.
- the rotor is disposed radially inside the stator.
- the stator and the rotor are arranged coaxially with the axis of the main shaft 11.
- the rotor rotates about the axis of the main shaft 11 with respect to the stator.
- the outer diameter of the motor 14 is larger than the outer diameter of the drive sheave 13.
- the rotor has a plurality of magnets. Further, the rotor is fixed to the drum flange portion 123. As a result, the rotor rotates integrally with the brake drum 12.
- the stator has a stator core and a stator coil. When electricity is supplied to the stator coil, the stator generates a rotating magnetic field. The rotor rotates with respect to the stator by a rotating magnetic field generated by the stator.
- the plurality of brake units 15 are respectively arranged at positions radially outside the brake drum 12 as shown in FIG.
- the number of brake units 15 is two.
- the dimensions of each brake unit 15 are larger than the dimensions of the brake drum 12 as shown in FIG. 4.
- each brake unit 15 reaches not only the position of the brake drum 12 on the radially outer side but also the position of the drive sheave 13 on the radially outer side.
- Each brake unit 15 has a movable member 151 and a brake driving device 152 that displaces the movable member 151, as shown in FIG.
- Each brake unit 15 applies a braking force to the brake drum 12 by pressing the movable member 151 against the outer peripheral surface 122a of the brake drum 12, and releases the braking force to the brake drum 12 by separating the movable member 151 from the brake drum 12.
- the drive sheave 13 is braked by applying a braking force to the brake drum 12. Further, the braking force applied to the drive sheave 13 is released by releasing the braking force applied to the brake drum 12.
- the movable member 151 includes an amateur 153 and a lining 154 provided on the amateur 153.
- the amateur 153 is disposed between the brake drum 12 and the brake driving device 152 in the radial direction of the brake drum 12.
- the lining 154 is provided in a portion of the amateur 153 on the brake drum 12 side.
- the lining 154 is a friction member that comes into contact with or moves away from the outer peripheral surface 122 a of the brake drum 12 due to the displacement of the movable member 151.
- the amateur 153, the lining 154, and the brake driving device 152 are disposed at the same position in the circumferential direction of the brake drum 12.
- the brake driving device 152 includes a brake spring that is an elastic body that urges the movable member 151 in a direction in which the lining 154 contacts the outer peripheral surface 122a of the brake drum 12, and the lining 154 is opposed to the urging force of the brake spring. 12 and an electromagnetic magnet that displaces the movable member 151 in a direction away from the outer peripheral surface 122a.
- the movable member 151 is pressed against the outer peripheral surface 122a of the brake drum 12 by the urging force of the brake spring.
- the electromagnetic magnet When the electromagnetic magnet is energized, the electromagnetic magnet generates an electromagnetic attractive force that attracts the armature 153, and the movable member 151 is separated from the brake drum 12.
- each brake unit 15 is a direct acting brake unit that displaces the lining 154 without using an arm.
- the two brake units 15 are arranged obliquely downward on the left and right with respect to the main shaft 11 and the brake drum 12 when the hoisting machine 4 is viewed along the axis of the main shaft 11.
- Each brake unit 15 applies a braking force to the brake drum 12 and the drive sheave 13 by pressing the movable member 151 diagonally upward toward the axis of the main shaft 11 on the outer peripheral surface 122 a of the brake drum 12.
- the arrangement of the brake unit 15 that presses the movable member 151 on the outer peripheral surface 122a of the brake drum 12 in any of the horizontal direction, diagonally downward, and vertically downward is prohibited.
- two brake units 15 are arranged in a region below the horizontal line A passing through the axis of the main shaft 11, and pass through the axis of the main shaft 11.
- the brake unit 15 is not arranged in the region above the horizontal line A.
- Each brake unit 15 is arranged in a symmetrical position with respect to a vertical line passing through the axis of the main shaft 11 as shown in FIG. 2 when the hoisting machine 4 is viewed along the axis of the main shaft 11. Further, each upper end portion of each brake unit 15 is disposed below a horizontal line A passing through the axis of the main shaft 11 when the hoisting machine 4 is viewed along the axis of the main shaft 11. Further, when the hoist 4 is viewed along the axis of the main shaft 11, the distance from the vertical line passing through the axis of the main shaft 11 to the lower end of the brake unit 15 is from the vertical line passing through the axis of the main shaft 11 to the brake unit 15. It is smaller than the distance to the upper end of the.
- the housing 16 has a first support member 17 and a second support member 18 as shown in FIG.
- the first support member 17 includes a base portion 20, a cylindrical stator fixing portion 21 provided on the base portion 20, and a plurality of brake mounting portions 22 provided on the base portion 20 and the stator fixing portion 21. And a first main shaft mounting portion 23 provided on the stator fixing portion 21.
- the 1st support member 17 is comprised by the single material of integral molding.
- the base portion 20 is horizontally disposed along the axis of the main shaft 11 below the main shaft 11, the brake drum 12, the driving sheave 13, and the motor 14.
- the lower end portion of the second support member 18 is fixed to one end portion in the axial direction of the base portion 20, and the lower end portion of the stator fixing portion 21 is fixed to the other end portion in the axial direction of the base portion 20.
- the brake drum 12, the drive sheave 13, and the motor 14 are disposed between the first main shaft attachment portion 23 and the second support member 18.
- the stator fixing portion 21 is a cylindrical member disposed coaxially with the axis of the main shaft 11.
- the stator of the motor 14 is fixed to the stator fixing portion 21 with the outer peripheral surface of the stator fitted to the inner peripheral surface of the stator fixing portion 21.
- the first main shaft mounting portion 23 is a plate-like member that closes one opening of the cylindrical stator fixing portion 21.
- the first spindle attaching portion 23 is provided with a fitting hole 23a into which one end of the spindle 11 is fitted.
- One end portion of the main shaft 11 is supported by the first main shaft mounting portion 23 in a state of being fitted into the fitting hole 23a.
- Each brake mounting portion 22 is provided on the outer peripheral portion of the stator fixing portion 21 in accordance with the circumferential position of the brake unit 15, as shown in FIGS.
- the two brake attachment portions 22 are arranged at positions symmetrical with respect to a vertical line passing through the axis of the main shaft 11.
- Each brake mounting portion 22 includes a shaft mounting portion 221 provided on the stator fixing portion 21 and a bolt mounting portion provided below the shaft mounting portion 221 and provided on the stator fixing portion 21 and the base portion 20. 222.
- the shaft mounting portion 221 is provided with a shaft bolt 223 that is a brake mounting shaft in parallel with the axis of the main shaft 11.
- An upper end portion of the brake unit 15 is rotatably attached to the shaft bolt 223.
- the brake unit 15 is displaced about the shaft bolt 223 between an attachment position facing the outer peripheral surface 122a of the brake drum 12 and a maintenance position located radially outside the brake drum 12 from the attachment position.
- the lower end portion of the brake unit 15 is attached to the bolt attachment portion 222 with an attachment bolt 224 that is a fastener.
- the brake unit 15 is held at the mounting position by the mounting bolt 224.
- the brake unit 15 can be displaced between the mounting position and the maintenance position when the mounting bolt 224 is detached from the bolt mounting portion 222.
- the hoisting machine 4 is used in a state where the brake unit 15 is held at the mounting position. When the brake unit 15 has reached the maintenance position, maintenance work on the brake unit 15 is possible.
- the second support member 18 has a second main shaft attachment portion 24 to which the other end portion of the main shaft 11 is attached.
- the second main shaft attachment portion 24 is provided with a fitting hole 24a into which the other end portion of the main shaft 11 is fitted.
- the other end portion of the main shaft 11 is supported by the second main shaft attachment portion 24 in a state of being fitted in the fitting hole 24a.
- the first support member 17 is placed in a state where the plate-like first main shaft attachment portion 23 is set sideways and the axial direction of the cylindrical stator fixing portion 21 is set to the vertical direction. Thereafter, one end portion of the main shaft 11 is fitted into the fitting hole 23 a of the first main shaft mounting portion 23, and the main shaft 11 stands on the first main shaft mounting portion 23.
- stator of the motor 14 is fitted to the inner peripheral surface of the stator fixing portion 21.
- stator of the motor 14 is fixed to the stator fixing portion 21.
- the brake drum 12 and the rotor of the motor 14 integrated in advance are fitted to the main shaft 11 from above.
- the boss 121 of the brake drum 12 is fitted to the main shaft 11 via the bearing 113.
- the rotor 142 is inserted inside the stator to constitute the motor 14.
- the driving sheave 13 is placed on the boss 121 of the brake drum 12 from above, and the driving sheave 13 is fixed to the boss 121.
- the fitting hole 24a of the second spindle attaching portion 24 is fitted and fixed to the other end of the spindle 11, and the second support member 18 is fixed to the base portion 20. Thereafter, the main shaft 11 is made horizontal with the base portion 20 facing downward. Thereby, the hoisting machine 4 is completed.
- the procedure for performing maintenance work on the brake unit 15 will be described.
- the maintenance person gets on the upper surface of the car 1 from the landing on the top floor.
- the maintenance device provided at the upper part of the car 1 is operated to raise the car 1 at a low speed, so that the maintenance work can be performed on the hoisting machine 4 below the hoisting machine 4.
- the car 1 is stopped at the work stop position.
- the maintenance staff When performing maintenance work of the brake unit 15, the maintenance staff operates the mounting bolt 224 that fixes the brake unit 15 from below the hoisting machine 4 and removes the mounting bolt 224 from the bolt mounting portion 222. As a result, the brake unit 15 can be displaced from the mounting position to the maintenance position. Thereafter, the maintenance staff performs maintenance work such as replacement of the lining 154 on the brake unit 15 in a state where the brake unit 15 is displaced to the maintenance position. When the maintenance work of the brake unit 15 is completed, the maintenance staff displaces the brake unit 15 from the maintenance position to the mounting position, and fixes the brake unit 15 to the mounting position by the mounting bolt 224.
- the maintenance staff operates the operation device during maintenance to lower the car 1 at a low speed, and then gets down from the upper surface of the car 1 to the landing on the top floor. In this way, maintenance work of the brake unit 15 is performed.
- the brake unit 15 presses the movable member 151 obliquely upward against the outer peripheral surface 122 a of the brake drum 12, so that it opposes the downward load received by the main shaft 11 from the cord 3.
- the movable member 151 can be pressed against the brake drum 12. Accordingly, the system load received by the main shaft 11 when the brake unit 15 applies a braking force to the brake drum 12 can be reduced, and the load applied to the main shaft 11 can be reduced. Thereby, the weight of the main shaft 11 can be reduced, and the weight of the hoisting machine 4 can be reduced.
- the brake unit 15 can be disposed obliquely downward as viewed from the axis of the main shaft 11, the amount of protrusion of the brake unit 15 to the outer side in the horizontal direction and the outer side in the vertical direction of the brake drum 12 is determined by the thickness dimension of the brake unit 15 And the overall dimensions of the hoisting machine 4 can be reduced. Thereby, size reduction of the winding machine 4 can be achieved.
- the brake unit 15 is disposed obliquely downward as viewed from the axis of the main shaft 11 and the hoisting machine 4 is disposed in the upper part of the hoistway, a stop position for maintenance work of the car 1 is necessary on the ceiling of the hoistway. Without approaching the above, the maintenance staff can easily access the brake unit 15 from the upper surface of the car 1. Thereby, the distance between the ceiling of the hoistway and the upper surface of the car 1 can be secured during maintenance work of the brake unit 15 without increasing the position of the hoistway ceiling. An increase in dimensions can be prevented.
- the lining 154 is disposed between the outer peripheral surface 122a of the brake drum 12 and the brake driving device 152 in the radial direction of the brake drum 12, a direct-acting brake without using an arm is applied to the brake unit 15. Can be applied. Thereby, the size of the brake unit 15 in the circumferential direction of the brake drum 12 can be reduced, and the hoisting machine 4 can be further reduced in size.
- the two brake units 15 are arranged at symmetrical positions with respect to a vertical line passing through the axis of the main shaft 11 when viewed along the axis of the main shaft 11, so that the pressing force received by the main shaft 11 from each brake unit 15
- the component of the resultant force in the left-right direction can be offset with a simple configuration, and a pressing force biased in the left-right direction with respect to the main shaft 11 can be made difficult to occur.
- the upper end portion of the brake unit 15 is located below the horizontal line A passing through the axis of the main shaft 11 when the brake unit 15 is viewed along the axis of the main shaft 11.
- the upper end portion of the brake unit 15 is rotatably attached to the shaft bolt 223 provided in the housing 16, and the brake unit 15 has an attachment position facing the outer peripheral surface 122 a of the brake drum 12 and an attachment position.
- the brake unit 15 since the shaft bolt 223 can be displaced from the maintenance position positioned radially outside the brake drum 12, the brake unit 15 is moved from the mounting position toward the maintenance position by its own weight. It can be easily displaced. Thereby, the brake unit 15 can be easily displaced to a maintenance position, and the maintenance work of the brake unit 15 can be performed easily. In particular, maintenance work of the brake unit 15 from below the hoisting machine 4 can be performed more easily.
- the lining 154 is easily exposed downward when the brake unit 15 is displaced from the attachment position to the maintenance position. Therefore, by attaching the upper end of the brake unit 15 to the shaft bolt 223, the range in which the brake unit 15 is displaced during maintenance work is narrower than when the lower end of the brake unit 15 is attached to the shaft bolt 223. The space required for maintenance work of the brake unit 15 can be reduced. Thereby, the layout property of the hoisting machine 4 can be improved.
- each brake unit 15 presses the movable member 151 diagonally upward against the outer peripheral surface 122a of the brake drum 12.
- the upper end of the brake unit 15 when the brake unit 15 is viewed along the axis of the main shaft 11, the upper end of the brake unit 15 is positioned below the horizontal line A passing through the axis of the main shaft 11. If the movable member 151 is pressed obliquely upward on the outer peripheral surface 122a of the brake drum 12, the upper end of the brake unit 15 may be positioned above the horizontal line A passing through the axis of the main shaft 11. . Therefore, for example, even if the upper end of the lining 154 is positioned below the horizontal line passing through the axis of the main shaft 11 and the upper end of the brake unit 15 is positioned above the horizontal line A passing through the axis of the main shaft 11. Good.
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
Palan d'ascenseur, dans lequel un tambour de frein est conçu de façon à pouvoir tourner autour de l'axe d'un arbre principal. Un moteur entraîne la rotation du tambour de frein. Une unité de frein ayant un élément mobile est disposée dans une position sur l'extérieur dans la direction radiale du tambour de frein. L'arbre principal, le tambour de frein, le moteur et l'unité de frein sont supportés par un carter. L'unité de freinage presse l'élément mobile en oblique vers le haut contre une surface périphérique externe du tambour de frein et applique ainsi une force de freinage au tambour de frein.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2017/016554 WO2018198231A1 (fr) | 2017-04-26 | 2017-04-26 | Palan d'ascenseur |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2017/016554 WO2018198231A1 (fr) | 2017-04-26 | 2017-04-26 | Palan d'ascenseur |
Publications (1)
Publication Number | Publication Date |
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WO2018198231A1 true WO2018198231A1 (fr) | 2018-11-01 |
Family
ID=63918091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2017/016554 WO2018198231A1 (fr) | 2017-04-26 | 2017-04-26 | Palan d'ascenseur |
Country Status (1)
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WO (1) | WO2018198231A1 (fr) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11130365A (ja) * | 1997-10-29 | 1999-05-18 | Hitachi Ltd | エレベータ装置 |
JP2003106348A (ja) * | 2001-09-28 | 2003-04-09 | Meidensha Corp | ブレーキ装置及び巻上機 |
JP2011073856A (ja) * | 2009-10-01 | 2011-04-14 | Mitsubishi Electric Corp | 巻上機 |
US20110147129A1 (en) * | 2009-12-22 | 2011-06-23 | Davis Daniel B | Supplemental elevator brake and retrofitting installation procedure |
JP2013112431A (ja) * | 2011-11-25 | 2013-06-10 | Mitsubishi Electric Corp | エレベータ用巻上機の制動装置 |
-
2017
- 2017-04-26 WO PCT/JP2017/016554 patent/WO2018198231A1/fr active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11130365A (ja) * | 1997-10-29 | 1999-05-18 | Hitachi Ltd | エレベータ装置 |
JP2003106348A (ja) * | 2001-09-28 | 2003-04-09 | Meidensha Corp | ブレーキ装置及び巻上機 |
JP2011073856A (ja) * | 2009-10-01 | 2011-04-14 | Mitsubishi Electric Corp | 巻上機 |
US20110147129A1 (en) * | 2009-12-22 | 2011-06-23 | Davis Daniel B | Supplemental elevator brake and retrofitting installation procedure |
JP2013112431A (ja) * | 2011-11-25 | 2013-06-10 | Mitsubishi Electric Corp | エレベータ用巻上機の制動装置 |
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